Edge breakage prevention device for edge skin and horizontal silicon rod squaring machine

Abstract

The invention discloses an edge breakage prevention device for edge skins and a horizontal silicon rod squarer. The edge breakage prevention device for the edge skins comprises a clamping support, an edge breakage prevention device and an edge breakage prevention device, the edge leather clamp is arranged on the clamping support; the edge leather clamp comprises a clamping base, at least one pair of end face clamping heads oppositely arranged in the clamping direction, and a clamping head driving mechanism used for driving at least one end face clamping head in the at least one pair of end face clamping heads to move in the clamping direction. The end face chuck comprises a silicon rod jacking piece, an edge skin jacking piece and an edge skin clamping reinforcing piece. And the side leather clamp advancing and retreating mechanism is used for driving the side leather clamp to advance and retreat along the advancing and retreating direction. According to the edge breakage prevention device for the silicon rod, it can be guaranteed that the silicon rod body and the edge are kept relatively stable in the squaring and cutting operation process of the silicon rod, and the phenomenon that when a cutting fret saw in the wire cutting unit penetrates out of the silicon rod to be completely cut off, the edge falls off or deviates from the silicon rod body, and edge breakage is caused can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of silicon workpiece processing, and in particular to an edge skin anti-collapse device and a horizontal silicon rod squaring machine. Background Art

[0002] At present, with the society's emphasis on and openness to the use of green renewable energy, the photovoltaic solar power generation field has been increasingly valued and developed. In the field of photovoltaic power generation, the usual crystalline silicon solar cells are made on high-quality silicon wafers, which are cut from pulled or cast silicon ingots by multi-wire saws and subsequently processed.

[0003] The existing silicon wafer production process, taking single crystal silicon products as an example, generally, the approximate operation steps may include: cutting the original long silicon rod to form multiple short silicon rods; cutting the cut short silicon rods into squares to form rectangular cut silicon rods; grinding, chamfering and other processing operations on the cut silicon rods; and slicing the silicon rods to obtain single crystal silicon wafers.

[0004] In the related silicon rod squaring operation, the silicon rod cutting equipment is used to square the silicon rod to be cut, and the silicon rod will form a skin after the squaring. In some cases, since there is no corresponding support for the silicon rod body and the cut skin, such a design also brings some problems: when the cutting wire saw finally passes through the silicon rod to be cut, the skin may be relatively displaced with the silicon rod body and the edge may collapse; in addition, the skin produced after cutting may be at risk of falling or overturning due to the lack of corresponding support. In addition, the skin unloading method is mostly manual operation by the operator to separate the skin from the cut silicon rod and move it out of the silicon rod squaring equipment, which is not only inefficient, but also causes the skin to collide with the cut silicon rod during transportation, increasing the risk of damage to the cut silicon rod, and the skin is difficult to reuse. Summary of the invention

[0005] In view of the deficiencies of the above-mentioned related technologies, the purpose of the present application is to provide a horizontal silicon rod squaring machine to solve the problems existing in the existing related technologies, such as complex overall equipment structure, large space occupied, poor equipment scalability, and low silicon rod cutting efficiency.

[0006] To achieve the above-mentioned purpose and other related purposes, the present application discloses a device for preventing edge collapse of the edge skin, which is used in silicon rod squaring equipment, and the device for preventing edge collapse of the edge skin comprises: a clamping support; an edge skin clamp, which is arranged on the clamping support; the edge skin clamp comprises a clamping support, at least a pair of end face clamps arranged opposite to each other along the clamping direction, and a clamp driving mechanism for driving at least one end face clamp of the at least one pair of end face clamps to move along the clamping direction; the end face clamp comprises a silicon rod pressing piece, a edge skin pressing piece, and an edge skin clamping reinforcement piece; and a edge skin clamp advance and retreat mechanism, which is used to drive the edge skin clamp to advance and retreat along the advance and retreat direction.

[0007] In certain embodiments of the present application, the end face chuck includes: a clamping base, a silicon rod pressing member and a side skin pressing member provided on the clamping base, and a side skin clamping reinforcement member that moves forward and backward along a clamping direction relative to the clamping base.

[0008] In certain embodiments of the present application, in the end face chuck, the silicon rod pressing part includes a silicon rod pressing screw provided on the clamping base, the side skin pressing part includes a side skin pressing screw provided on the clamping base, and the side skin clamping reinforcement includes a telescopic push rod or a telescopic push block which is controlled to advance and retreat relative to the clamping base.

[0009] In certain embodiments of the present application, the end face chuck further includes an offset fine-tuning structure for adjusting the position of the clamping base.

[0010] In certain embodiments of the present application, the deflection fine-tuning structure includes a hinge structure, and the clamping base is arranged by the hinge structure.

[0011] In certain embodiments of the present application, the offset fine-tuning structure includes a ball head structure, and the clamping base is arranged by the ball head structure.

[0012] In certain embodiments of the present application, in the end face chuck, the silicon rod pressing part includes a silicon rod pressing elastic part provided on the clamping base, the side skin pressing part includes a side skin pressing elastic part provided on the clamping base, and the side skin clamping reinforcement includes a telescopic push rod or a telescopic push block which is controlled to advance and retreat relative to the clamping base.

[0013] In certain embodiments of the present application, the end face chuck includes: a first clamping base, provided with a silicon rod pressing piece; a second clamping base, provided with a side skin pressing piece and a side skin clamping reinforcement piece that moves forward and backward along the clamping direction relative to the second clamping base.

[0014] In certain embodiments of the present application, in the end face chuck, the silicon rod pressing part includes a silicon rod pressing screw provided on the first clamping base, the side skin pressing part includes a side skin pressing screw provided on the second clamping base, and the side skin clamping reinforcement includes a telescopic push rod or a telescopic push block which is controlled to advance and retreat relative to the second clamping base.

[0015] In certain embodiments of the present application, in the end face chuck, the silicon rod pressing part includes a silicon rod pressing elastic part provided on the first clamping base, the side skin pressing part includes a side skin pressing elastic part provided on the second clamping base, and the side skin clamping reinforcement includes a telescopic push rod or a telescopic push block which is controlled to advance and retreat relative to the second clamping base.

[0016] In certain embodiments of the present application, the chuck driving mechanism includes: a chuck moving guide rail arranged along the clamping direction; and a chuck driving unit for driving at least one end face chuck of the at least one pair of end face chucks to move along the chuck moving guide rail.

[0017] In certain embodiments of the present application, the chuck driving unit includes: at least one chuck telescopic assembly, the chuck telescopic assembly includes: a chuck telescopic rod and a chuck telescopic cylinder, the chuck telescopic rod is arranged along the clamping direction and is associated with a corresponding end face chuck, and the chuck telescopic cylinder is associated with the chuck telescopic rod.

[0018] In certain embodiments of the present application, the chuck driving unit includes: at least one pair of clamping racks arranged along the clamping direction and respectively associated with at least one pair of end face chucks; a clamping gear meshing with the pair of clamping racks; and a gear driving source associated with the clamping gear, for driving the clamping gear to rotate so that the at least one pair of meshed clamping racks drives the associated at least one pair of end face chucks to move toward or away from each other along the clamping direction.

[0019] In certain embodiments of the present application, the chuck drive unit includes: at least one chuck clamping assembly, the chuck clamping assembly includes: a clamping screw and a screw drive source, the clamping screw is arranged along the clamping direction and is associated with a corresponding end face chuck, and the screw drive source is associated with the clamping screw.

[0020] In certain embodiments of the present application, the chuck drive unit includes: a bidirectional screw, arranged along the clamping direction and respectively associated with at least one pair of end face chucks; a screw drive source, associated with the bidirectional screw, for driving the bidirectional screw to rotate so that at least one pair of associated end face chucks move toward or away from each other along the clamping direction.

[0021] In certain embodiments of the present application, the edge skin clamp advance and retreat mechanism includes: a clamp advance and retreat guide rail, arranged along the advance and retreat direction; and an edge skin clamp advance and retreat unit, used to drive the edge skin clamp to move along the clamp advance and retreat guide rail.

[0022] In certain embodiments of the present application, the edge skin clamp advance and retreat unit includes: a clamp seat telescopic rod and a clamp seat telescopic cylinder, the clamp seat telescopic rod is arranged along the advance and retreat direction and is associated with the clamp seat of the edge skin clamp, and the clamp seat telescopic cylinder is associated with the clamp seat telescopic rod.

[0023] In certain embodiments of the present application, the edge skin clamp advance and retreat unit includes: a clamp seat rack, arranged along the advance and retreat direction and associated with the clamp seat of the edge skin clamp; a clamp seat gear, meshing with the clamp seat rack; a gear drive source, associated with the clamp seat gear, for driving the clamp seat gear to rotate so that the meshed edge skin clamp moves along the advance and retreat direction.

[0024] In certain embodiments of the present application, the edge skin clamp advance and retreat unit includes: an exit screw and a screw drive source, the exit screw is arranged along the advance and retreat direction and is associated with the clamping seat of the edge skin clamp, and the screw drive source is associated with the exit screw.

[0025] In certain embodiments of the present application, the edge skin anti-collapse device also includes a clamp lifting mechanism, including: a clamp lifting guide rail, arranged vertically; and a clamp lifting unit, used to drive the edge skin clamp to move up and down along the clamp lifting guide rail.

[0026] In certain embodiments of the present application, the clamp lifting unit includes: a lifting rack, arranged vertically and associated with the clamping seat of the edge skin clamp; a lifting gear, meshing with the lifting rack; and a gear drive source, associated with the lifting gear, for driving the lifting gear to rotate so that the meshed edge skin clamp can be lifted and lowered vertically.

[0027] In certain embodiments of the present application, the edge clamp lifting unit includes: a lifting screw and a screw drive source, the lifting screw is arranged vertically and associated with the clamping seat of the edge skin clamp, and the screw drive source is associated with the lifting screw.

[0028] In certain embodiments of the present application, the edge skin anti-collapse device also includes an edge skin unloading and conveying mechanism, which is connected to the edge skin clamp advance and retreat mechanism.

[0029] In certain embodiments of the present application, the edge skin unloading and conveying mechanism includes an edge skin bearing structure and a conveying drive mechanism.

[0030] In certain embodiments of the present application, the conveying drive mechanism includes a chain conveying mechanism or a transmission belt mechanism.

[0031] The edge skin anti-collapse device in the present application can use the silicon rod pressing member and the edge skin pressing member in the edge skin anti-collapse device to press on the silicon rod body and the edge skin at the same time during the squaring and cutting operation of the silicon rod, so as to provide sufficient support to the silicon rod and the edge skin to be cut, ensure that the silicon rod body and the edge skin remain relatively stable, and prevent the edge skin from falling off or the edge skin from shifting from the silicon rod body when the cutting wire saw in the wire cutting unit passes through the silicon rod to completely cut off, resulting in edge collapse. In addition, after the edge skin is cut off, the edge skin clamping reinforcement member and the edge skin clamp advance and retreat mechanism can be used to withdraw the edge skin in the advance and retreat direction to drive the clamped edge skin to separate from the silicon rod body, and the material can be unloaded sequentially to avoid the risk of the edge skin falling off or overturning, thereby ensuring the cutting quality of the silicon rod and the reuse of the edge skin.

[0032] The present application discloses a horizontal silicon rod squaring machine, which is characterized by comprising: a machine base having a silicon rod processing platform; the silicon rod processing platform is provided with a plurality of processing stations, each of which includes a loading and unloading area and a cutting area; each processing station is provided with a silicon rod transfer device, an edge skin anti-collapse device, and a silicon rod cutting device; wherein the silicon rod transfer device is used to carry the silicon rod and transfer it between the loading and unloading area and the cutting area of ​​the processing station along the transfer direction; the silicon rod is horizontally placed on the silicon rod transfer device and the axis of the silicon rod is consistent with the transfer direction; the silicon rod cutting ... The cutting device is arranged in the cutting area of ​​the processing station, and the silicon rod cutting device includes at least one wire cutting unit, and the wire cutting unit has at least one cutting wire saw, and the at least one cutting wire saw is arranged along the vertical direction or at an angle to the vertical direction; wherein, in the square cutting operation, the edge skin anti-collapse device is used to clamp the silicon rod, and the wire cutting unit and the corresponding silicon rod transfer device are relatively moved along the transfer direction, and the silicon rod carried by the silicon rod transfer device is squared by the at least one cutting wire saw, so that the cross-section of the silicon rod changes from a circular shape to a rectangular shape after the square cutting operation.

[0033] In certain embodiments of the present application, the silicon rod transfer device includes: a transfer channel arranged along a transfer direction; a carrying platform for carrying silicon rods; and a transfer drive mechanism for driving the carrying platform and the silicon rods carried by it to move on the transfer channel along the transfer direction.

[0034] In certain embodiments of the present application, the clamping support of the edge skin collapse prevention device is associated with the carrying platform of the silicon rod transfer device.

[0035] In certain embodiments of the present application, the carrying platform includes at least two carrying members spaced apart along the transfer direction.

[0036] In certain embodiments of the present application, the support member includes: a support bracket; a first support structure for supporting the silicon rod and contacting the curved surface of the silicon rod; and a second support structure for supporting the silicon rod and contacting the cut surface of the silicon rod.

[0037] In certain embodiments of the present application, the supporting member includes a Y-shaped supporting structure.

[0038] In certain embodiments of the present application, the carrier platform includes a carrier driving mechanism, which includes: a carrier moving guide rail arranged along the transfer direction; and a carrier driving unit for driving at least one carrier to move along the carrier moving guide rail.

[0039] In certain embodiments of the present application, the transfer drive mechanism includes: a platform transfer rail arranged along the transfer direction; and a transfer drive unit, used to drive the carrying platform to move along the platform transfer rail.

[0040] In certain embodiments of the present application, the silicon rod transfer device includes: a transfer channel arranged along a transfer direction; a silicon rod clamp for clamping both end surfaces of the silicon rod; and a transfer drive mechanism for driving the silicon rod clamp and the silicon rod clamped therein to move along the transfer direction on the transfer channel.

[0041] In certain embodiments of the present application, the silicon rod clamp includes: a clamp arm mounting seat, disposed on the transfer channel; at least one pair of clamp arms, disposed on the clamp arm mounting seat opposite to each other along the transfer direction, for clamping two end surfaces of the silicon rod; and a clamp arm driving mechanism, for driving at least one clamp arm of at least one pair of clamp arms to move along the transfer direction.

[0042] In certain embodiments of the present application, the silicon rod clamp includes: at least one pair of clamp arms, which are arranged on the transfer channel opposite to each other along the transfer direction; and a clamp arm driving mechanism, which is used to drive at least one clamp arm of the at least one pair of clamp arms to move along the transfer direction.

[0043] In certain embodiments of the present application, the clamping arm is a rotating structure; the silicon rod clamp further includes a clamping arm rotating mechanism for driving the clamping arm to rotate.

[0044] In certain embodiments of the present application, the wire cutting unit in the silicon rod cutting device includes: a cutting installation structure, a plurality of cutting wheels and a cutting wire arranged on the cutting installation structure, and the cutting wire is sequentially wound around the plurality of cutting wheels to form at least one cutting wire saw.

[0045] In certain embodiments of the present application, the cutting wire is wound between the cutting wheels in an end-to-end annular winding manner.

[0046] In certain embodiments of the present application, the wire cutting unit further includes at least one transition wheel and a tension adjustment mechanism associated with the at least one transition wheel.

[0047] In certain embodiments of the present application, the silicon rod cutting device further includes: at least one distance adjustment mechanism, provided in the at least one wire cutting unit, for driving the cutting wheel in the wire cutting unit to move in a direction perpendicular to the wheel surface of the cutting wheel.

[0048] In certain embodiments of the present application, the horizontal silicon rod squaring machine further includes: a silicon rod loading and unloading device for loading the silicon rods to be cut onto the loading and unloading area of ​​the corresponding processing station and unloading the cut silicon rods from the loading and unloading area of ​​the corresponding processing station.

[0049] In certain embodiments of the present application, the silicon rod loading and unloading device includes: a silicon rod mounting frame, which is straddled on the machine base along the transposition direction; a silicon rod clamp, which is used to clamp the two end faces of the silicon rod; and a clamp transposition mechanism, which is used to drive the silicon rod clamp to move on the silicon rod mounting frame along the transposition direction.

[0050] In certain embodiments of the present application, the silicon rod clamp includes: a clamp mounting frame; and a silicon rod clamping piece, which is disposed on the clamp mounting frame.

[0051] In certain embodiments of the present application, the silicon rod clamping device includes: a clamp arm mounting seat, which is arranged on the clamp mounting frame; at least one pair of clamp arms, which are arranged on the clamp arm mounting seat opposite to each other along the transfer direction; and a clamp arm driving mechanism, which is used to drive at least one clamp arm of the at least one pair of clamp arms to move along the transfer direction to adjust the clamping distance between the at least one pair of clamp arms.

[0052] In certain embodiments of the present application, the at least one pair of clamp arms includes a rotating structure; the silicon rod clamp also includes a clamp arm rotating mechanism, which is provided on at least one clamp arm of the at least one pair of clamp arms and is used to drive the clamping portion of the at least one clamp arm to rotate.

[0053] In certain embodiments of the present application, in the silicon rod clamp, the silicon rod clamping piece is lifted and lowered relative to the clamp mounting frame by a clamp lifting mechanism.

[0054] In certain embodiments of the present application, the fixture shifting mechanism includes: a fixture shifting guide rail, which is arranged on the silicon rod mounting frame along the shifting direction; the shifting direction is perpendicular to the transfer direction and forms a horizontal plane; and a fixture shifting drive unit, which is associated with the silicon rod fixture and is used to drive the associated silicon rod fixture to move along the fixture shifting guide rail to shift between multiple processing stations.

[0055] In certain embodiments of the present application, the silicon rod loading and unloading device further includes a centering adjustment mechanism for adjusting the position of the silicon rod to be cut so that the axis center line of the silicon rod to be cut corresponds to a predetermined center line.

[0056] In certain embodiments of the present application, the horizontal silicon rod squaring machine also includes a side skin unloading device, including: a side skin mounting frame, which is straddled on the machine base along the transposition direction; a side skin adsorption member, which is used to adsorb the side skin; and a suction member transposition mechanism, which is used to drive the adsorption member to move on the side skin mounting frame along the transposition direction.

[0057] In certain embodiments of the present application, the edge skin adsorption member is lifted and lowered relative to the edge skin mounting frame by an adsorption member lifting mechanism.

[0058] In certain embodiments of the present application, the adsorption component shifting mechanism includes: an adsorption component shifting guide rail, which is arranged on the side skin mounting frame along the shifting direction; the shifting direction is perpendicular to the transfer direction and constitutes a horizontal plane; an adsorption component shifting drive unit, which is associated with the side skin adsorption component and is used to drive the associated side skin adsorption component to move along the adsorption component shifting guide rail.

[0059] In certain embodiments of the present application, the horizontal silicon rod squaring machine also includes a crystal line detection device, which includes: at least two supporting structures arranged at a distance, the supporting structure having a supporting roller group arranged along the transfer direction for supporting the silicon rod to be cut; a roller driving source, which is used to drive each supporting roller in the supporting roller group to rotate so as to drive the silicon rod to be cut to rotate.

[0060] The horizontal silicon rod squaring machine disclosed in the present application is provided with a plurality of processing stations and a plurality of silicon rod cutting devices and a plurality of silicon rod transfer devices corresponding to the plurality of processing stations, so that the plurality of silicon rod cutting devices can simultaneously perform silicon rod squaring and cutting operations on the silicon rods carried by the silicon rod transfer devices at the corresponding processing stations, greatly improving the cutting efficiency of the silicon rods. At the same time, the horizontal silicon rod squaring machine has the advantages of simple overall structure, strong equipment scalability, and space saving. At the same time, the horizontal silicon rod squaring machine is equipped with a side skin anti-collapse device, which can use the silicon rod pressing piece and the side skin pressing piece in the side skin anti-collapse device to press on the silicon rod body and the side skin at the same time during the silicon rod squaring and cutting operation, giving sufficient support to the silicon rod and the side skin to be cut, ensuring that the silicon rod body and the side skin remain relatively stable, and preventing the side skin from falling off or the side skin from offsetting with the silicon rod body when the cutting wire saw in the wire cutting unit passes through the silicon rod to completely cut off, resulting in side collapse. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The specific features of the invention involved in this application are shown in the attached claims. The features and advantages of the invention involved in this application can be better understood by referring to the exemplary embodiments and drawings described in detail below. A brief description of the drawings is as follows:

[0062] Figure 1 Shown is a schematic structural diagram of a horizontal silicon rod squaring machine of the present application in a first viewing angle in one embodiment.

[0063] Figure 2 Display as Figure 1 Schematic diagram of part of the structure.

[0064] Figure 3 Shown is a schematic structural diagram of a silicon rod transfer device and an edge skin collapse prevention device in one embodiment.

[0065] Figure 4 Display as Figure 3 A schematic structural diagram of a middle edge leather clamp in one embodiment.

[0066] Figures 5 to 7 Display as Figure 3 Schematic diagram of the state of the middle edge skin anti-collapse device clamping a silicon rod in one embodiment.

[0067] Figure 8 Shown is a schematic structural diagram of a side skin unloading and conveying mechanism in one embodiment.

[0068] Fig. 9 Shown is a schematic structural diagram of a wire cutting unit in a silicon rod cutting device in one embodiment.

[0069] Fig.10 Shown is a schematic structural diagram of a silicon rod fixture in one embodiment.

[0070] Fig.11 Shown is a schematic structural diagram of a crystal line inspection device in one embodiment.

[0071] Fig.12 The figure shows the states of the silicon rod at various stages when performing a square cutting operation in one embodiment.

[0072] Fig.13 The figure shows the states of the silicon rod at various stages when performing a square cutting operation in another embodiment. DETAILED DESCRIPTION

[0073] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0074] In the following description, several embodiments of the present application are described with reference to the accompanying drawings. It should be understood that other embodiments may also be used, and mechanical composition, structure and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present application is limited only by the claims of the published patents. The terms used here are only to describe specific embodiments and are not intended to limit the present application. Spatially related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., may be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0075] Although the terms first, second, etc. are used in some instances to describe various elements in this document, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first silicon rod cutting device can be referred to as the second silicon rod cutting device, and similarly, the second silicon rod cutting device can be referred to as the first silicon rod cutting device without departing from the scope of the various described embodiments. The first silicon rod cutting device and the second silicon rod cutting device are both describing a certain silicon rod cutting device, but unless the context clearly indicates otherwise, they are not the same silicon rod cutting device. Similar situations also include a first processing station and a second processing station, etc.

[0076] Furthermore, as used in this article, the singular forms "one", "an" and "the" are intended to include plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way.

[0077] The relevant processing technology for silicon rods involves several processes such as square cutting, grinding, chamfering, etc.

[0078] Generally, most existing silicon rods are cylindrical in structure. The silicon rods are squared and cut by silicon rod squaring equipment, so that the cross-section of the silicon rods after squaring is rectangular (including square), and the processed silicon rods are rectangular as a whole.

[0079] Taking a single crystal silicon rod as an example, the process of forming a single crystal silicon rod may include: first using a silicon rod cutter to cut the original long silicon rod to form multiple short silicon rods; after the cutting is completed, using a silicon rod squarer to cut the cut short silicon rod to form a single crystal silicon rod with a rectangular cross section. Among them, the specific implementation method of using a silicon rod cutter to cut the original long silicon rod to form multiple short silicon rods can refer to patent disclosures such as CN105856445A, CN105946127A, and CN105196433A, and the specific implementation method of using a silicon rod squarer to cut the cut short silicon rod to form a single crystal silicon rod with a rectangular cross section can refer to patent disclosures such as CN105818285A. However, the process for forming a single crystal silicon rod is not limited to the aforementioned technology. In an optional example, the process for forming a single crystal silicon rod may also include: first, using a full silicon rod squaring machine to square and cut the original long silicon rod to form a long single crystal silicon rod with a rectangular cross section; after the square is cut, using a silicon rod cutting machine to cut the squared long single crystal silicon rod to form a short silicon rod. Among them, the specific implementation method of using a full silicon rod squaring machine to square and cut the original long silicon rod to form a rectangular long single crystal silicon rod can be referred to, for example, patent disclosures such as CN106003443A.

[0080] The inventor of the present application has found that in the relevant squaring and cutting technology for silicon rods, a silicon rod will form a skin after squaring and cutting. Since there is no corresponding support for the silicon rod body and the cut skin, there will be problems such as the skin may be relatively displaced with the silicon rod body when the cutting wire saw finally passes through the silicon rod to be cut, resulting in edge collapse, and the skin produced after cutting may have the risk of falling or overturning due to the lack of corresponding support, which not only affects the quality of the silicon rod but also affects the reuse of the skin. In addition, the existing silicon rod squaring equipment involved has a complex structure and poor equipment scalability. It can only square and cut a single silicon rod or a few silicon rods, and there are problems such as low efficiency.

[0081] In view of this, the present application proposes a device for preventing edge collapse of the skin and a horizontal silicon rod squaring machine equipped with the device for preventing edge collapse of the skin. Through equipment modification, multiple independent processing stations are set in one equipment, and each processing station is equipped with a silicon rod transferring device, a device for preventing edge collapse of the skin, and a silicon rod cutting device. Not only can these silicon rod cutting devices be used to simultaneously perform squaring and cutting operations on the silicon rods carried by the silicon rod transferring devices on the corresponding processing stations, but each processing station operates independently and the loading and unloading of each silicon rod is seamlessly connected, thereby improving production efficiency and the quality of silicon rod processing operations. The device for preventing edge collapse of the skin can also provide sufficient support for the silicon rods and the edge skins to be cut, thereby avoiding the risks of edge collapse and falling or overturning of the edge skins during the cutting process, thereby ensuring the cutting quality of the silicon rods and the reuse of the edge skins.

[0082] In the embodiments disclosed in the present application, in order to clarify the definition of directions and the operation modes between different structures, a three-dimensional space defined by a first direction, a second direction, and a third direction is defined, wherein the first direction, the second direction, and the third direction are all linear directions and are perpendicular to each other. The depth extension direction of the horizontal silicon rod squaring machine, i.e., the length direction of the silicon rod when placed thereon, is defined as the first direction (i.e., the front-to-back direction or the transfer direction), the width extension direction of the horizontal silicon rod squaring machine, i.e., the left-to-right direction, is defined as the second direction (i.e., the left-to-right direction or the transposition direction), and the vertical direction, i.e., the vertical direction, the vertical line direction, the up-down direction, or the lifting direction, is defined as the third direction.

[0083] The present application discloses a horizontal silicon rod squaring machine, which is used for performing squaring operations on silicon rods, that is, performing squaring operations on silicon rods with circular (or approximately circular) cross-sections to form silicon rods with rectangular (including square) cross-sections, wherein most of the silicon rods may be, for example, single crystal silicon rods or polycrystalline silicon rods. In the embodiments of the present application, single crystal silicon rods are taken as an example for description.

[0084] See also Figure 1 and Figure 2 ,in, Figure 1 The figure shows a schematic diagram of the structure of the horizontal silicon rod squaring machine in one embodiment of the present application at a first viewing angle. Figure 2 Display as Figure 1 Schematic diagram of part of the structure.

[0085] like Figure 1 and Figure 2 As shown, the horizontal silicon rod squaring machine includes a machine base 11, a plurality of silicon rod transferring devices 12, a plurality of edge skin anti-collapse devices 13, and a plurality of silicon rod cutting devices 14.

[0086] The machine base 11 has a silicon rod processing platform, and the silicon rod processing platform is arranged on the upper surface of the machine base 11 .

[0087] The silicon rod processing platform is provided with a plurality of processing stations, wherein the number of processing stations provided can vary according to production requirements. Figure 1 and Figure 2 In the embodiment shown, the machine base 11 is a rectangular structure, the processing platform is designed to be rectangular in accordance with the shape of the machine base, and a plurality of processing stations are arranged on the silicon rod processing platform, and the plurality of processing stations are arranged in parallel. Figure 1 and Figure 2 In the embodiment shown in the figure, the first direction, the second direction, and the third direction are arranged as shown in the figure. Specifically, the first direction is Figure 1 and Figure 2 The X-axis in the second direction is Figure 1 The Y axis in the third direction is Figure 1 and Figure 2 Therefore, in Figure 1 and Figure 2 In the embodiment shown, the silicon rod processing platform is provided with four processing stations extending along the second direction, wherein each processing station includes a loading and unloading area and a cutting area. The number of processing stations provided on the silicon rod processing platform is only for illustrative purposes, and other changes may be made according to actual production needs. For example, the number of processing stations may be two, three, five, six, seven, eight, or more.

[0088] In the present application, each processing station is equipped with a silicon rod transfer device, an edge skin collapse prevention device, and a silicon rod cutting device. In this way, the corresponding square cutting operation can be performed on the silicon rod at each processing station, so that the cross-section of the silicon rod changes from a circular shape to a rectangular shape after the square cutting operation.

[0089] In some embodiments, the structures of the silicon rod transfer device, the edge skin anti-collapse device, and the silicon rod cutting device configured in each processing station are the same. Therefore, in the following, only the silicon rod transfer device, the edge skin anti-collapse device, and the silicon rod cutting device on a certain processing station are used as an example for description.

[0090] The silicon rod transfer device is used to carry the silicon rod and transfer it between the loading and unloading area and the cutting area of ​​the processing station along the transfer direction. The silicon rod is placed horizontally on the silicon rod transfer device and the axis of the silicon rod is consistent with the transfer direction. Figure 1 and Figure 2 In the embodiment shown, the silicon rod processing platform is provided with four processing stations extending along the second direction, wherein a silicon rod transfer device is configured on the loading and unloading area of ​​each processing station for placing the silicon rod in a horizontal placement manner, wherein the silicon rod is placed horizontally on the silicon rod transfer device and the axis of the silicon rod is consistent with the transfer direction, wherein the transfer direction is consistent with the first direction. Similarly, the number of the silicon rod transfer devices can still vary according to the number of processing stations.

[0091] In some embodiments, the silicon rod transfer device may include: a transfer channel, a carrying platform, and a transfer drive mechanism.

[0092] The transfer channel is arranged along the transfer direction. In certain implementations, the transfer channel comprises a transfer guide rail. The length of the transfer channel in the transfer direction is greater than the length of the silicon rod to be cut.

[0093] The carrying platform is arranged on the transfer channel and is used for carrying the silicon rod. After being carried by the carrying platform, the silicon rod is in a horizontal position, that is, the axis of the silicon rod is consistent with the transfer direction (that is, the first direction).

[0094] The transfer drive mechanism is used to drive the silicon rod platform and the silicon rods carried by it to move on the transfer channel along a transfer direction.

[0095] In some embodiments, the carrying platform includes at least two carrying members spaced apart along the transfer direction.

[0096] In some embodiments, the carrier includes: a carrier bracket, a first carrier structure, and a second carrier structure, wherein the carrier bracket is arranged on the transfer guide rail of the transfer channel, the first carrier structure is used to carry the silicon rod to be cut and contact the arc surface of the silicon rod to be cut, and the second carrier structure is used to carry the cut silicon rod and contact the cut surface of the cut silicon rod. In some implementations, the carrier adopts a Y-shaped carrier structure. Please refer to Figure 3 , which is a schematic diagram showing a structure including a silicon rod supporting device. Figure 2 and Figure 3 , the whole of the bearing member 121 is a Y-shaped bearing structure. The bottom of the Y-shaped bearing structure serves as a bearing support, the upper fork of the Y-shaped bearing structure serves as a first bearing structure, wherein the inner inclined surface of the upper fork contacts the arc surface of the silicon rod to be cut, and the top of the upper fork of the Y-shaped bearing structure serves as a second bearing structure, wherein the second bearing structure forms a bearing surface, and the bearing surface is consistent with the horizontal plane and contacts the cut surface of the cut silicon rod. Among them, the top of the upper fork of the Y-shaped bearing structure may also have a certain width. When the Y-shaped bearing structure is used to carry the silicon rod to be cut placed horizontally, the upper fork of the Y-shaped bearing structure (i.e., the V-shaped part) carries the silicon rod to be cut, and the two inner inclined surfaces of the upper fork contact the arc surface of the silicon rod to be cut. In this way, the silicon rod to be cut with a circular cross-section can also be centered, that is, the axis of the silicon rod to be cut corresponds to the center of the upper intersection (i.e., the bottom groove of the V-shaped part). When the Y-shaped supporting structure is used to support the cut silicon rods placed horizontally, the cut surface of the cut silicon rods is placed on the top of the upper fork of the Y-shaped supporting structure. Since the supporting surface is consistent with the horizontal plane and contacts with the cut surface of the cut silicon rods, it can ensure that the cut surface of the cut silicon rods being supported is in a horizontal state.

[0097] As mentioned above, the carrying platform includes at least two carrying members spaced apart along the transfer direction, and the carrying surface formed by these carrying members is adapted to the length of the silicon rod to be carried.

[0098] In some embodiments, the carrier platform further includes: a carrier driving mechanism for driving at least one carrier to move along a transfer direction to adjust a carrier spacing between the two carriers to accommodate silicon rods of different lengths.

[0099] In some embodiments, the carrier driving mechanism includes: a carrier moving guide rail arranged along the transfer direction; and a carrier driving unit for driving at least one carrier to move along the carrier moving guide rail.

[0100] In some embodiments, the carrier driving unit may include: an adjustment rack, arranged along the transfer direction; an adjustment gear, associated with the carrier to be moved, and the adjustment gear is meshed with the adjustment rack; and an adjustment drive source, used to drive the adjustment gear to rotate so that the associated carrier moves along the transfer direction. Wherein, when at least two of the carriers of the carrier platform are to be equipped with the carrier driving unit, the adjustment rack may be shared. For example, when there are two carriers to be equipped with the above-mentioned carrier driving unit, it may include: a shared adjustment rack, a first adjustment gear and a first adjustment drive source associated with the first carrier, and a second adjustment gear and a second adjustment drive source associated with the second carrier.

[0101] In some embodiments, the carrier driving unit may include: an adjusting screw, which is arranged along the transfer direction and associated with the carrier; and a screw driving source, which is used to drive the transfer screw to rotate so that the associated carrier moves along the transposition direction. Wherein, when at least two of the carriers of the carrier platform are to be equipped with a carrier driving unit, the adjusting screw may be shared. The shared adjusting screw may be, for example, a bidirectional screw. When there are two carriers to be equipped with the above-mentioned carrier driving unit, it may include: a bidirectional screw and a screw driving source, wherein both ends of the bidirectional screw are respectively provided with threads and the thread directions are opposite, and the two ends of the bidirectional screw are respectively associated with two opposite carriers. In practical applications, the bidirectional screw is driven to rotate by a screw driving source (such as a servo motor) so that the two associated opposite carriers move toward each other (the two carriers approach each other) or move away from each other (the two carriers move away from each other) along the bidirectional screw.

[0102] The transfer drive mechanism is used to drive the carrying platform and the silicon rods carried by the platform to move along the transfer direction on the transfer channel.

[0103] In some embodiments, the transfer drive mechanism includes: a platform transfer rail arranged along the transfer direction; and a transfer drive unit for driving the carrying platform to move along the platform transfer rail.

[0104] In some embodiments, the transfer drive unit includes: a transfer rack, a transfer gear, and a gear drive source. The transfer rack is arranged along the transfer direction. The transfer gear is associated with the carrying platform and meshes with the transfer rack. In some embodiments, the transfer gear is associated with at least two bearing members in the carrying platform. The association of the transfer gear with at least two bearing members in the carrying platform can be achieved in the following manner: at least two bearing members are connected by a connecting structure (such as a frame, a connecting plate, a connecting frame, etc.), and the driving gear is arranged on the connecting structure. The gear drive source is used to drive the transfer gear to rotate so that the associated carrying platform moves along the transfer direction. The gear drive source can be, for example, a servo motor.

[0105] In some embodiments, the transfer drive unit includes: a transfer screw and a screw drive source. The transfer screw is arranged along the transfer direction and is associated with the carrying platform. In some embodiments, the transfer screw is associated with at least two bearing members in the carrying platform. The association of the transfer screw with at least two bearing members in the carrying platform can be achieved in the following manner: at least two bearing members are connected by a connecting structure (such as a frame, a connecting plate, a connecting frame, etc.), and the transfer screw is associated with the connecting structure. The screw drive source is used to drive the transfer screw to rotate so that the associated carrying platform moves along the transfer direction. The screw drive source can be, for example, a servo motor.

[0106] In practical applications, the aforementioned carrier driving mechanism and transfer driving mechanism overlap in some functions. Therefore, in some embodiments, the function of the carrier driving mechanism for driving at least one carrier to move along the transfer direction to adjust the bearing spacing between the two carriers can be accomplished by the transfer driving mechanism.

[0107] The silicon rod transfer device may be further modified in other embodiments.

[0108] In some embodiments, the silicon rod transfer device includes: a transfer channel, a silicon rod clamp, and a transfer drive mechanism.

[0109] The transfer channel is arranged along the transfer direction. In certain implementations, the transfer channel comprises a transfer guide rail. The length of the transfer channel in the transfer direction is greater than the length of the silicon rod to be cut.

[0110] The silicon rod clamp is arranged on the transfer channel and is used to clamp the silicon rod. In some embodiments, the silicon rod clamp includes: a clamp arm mounting seat, at least one pair of clamp arms, and a clamp arm driving mechanism.

[0111] The clamp arm mounting seat is movably arranged on the transfer channel.

[0112] The at least one pair of clamping arms are arranged on the clamping arm mounting seat opposite to each other along the transfer direction, and are used to clamp the two end faces of the silicon rod. Any one of the at least one pair of clamping arms is provided with a clamping portion for directly contacting and clamping the silicon rod. The clamping arm extends upward from the clamping arm mounting seat (not shown in the figure), that is, the bottom of the clamping arm is arranged on the clamping arm mounting seat, and the top of the clamping arm is provided with a clamping portion for contacting and clamping the end face of the silicon rod. In the present application, for the silicon rod to be cut, the silicon rod to be cut is a cylindrical structure with a certain length, and its length direction is placed along the transfer direction (i.e., the first direction), and the end faces are the faces at both ends of the length direction. For the cut silicon rod, the cut silicon rod is a rectangular parallelepiped structure with a certain length (its cross section is rectangular or quasi-rectangular), and its length direction is placed along the transfer direction (i.e., the first direction), and the end faces are the faces at both ends of the length direction.

[0113] The silicon rod clamp also includes a clamp arm driving mechanism, which can drive at least one of the at least one pair of clamp arms to move along the transfer direction to adjust the clamping distance between the pair of relatively arranged clamp arms. In this way, the clamping parts of the at least one pair of clamp arms can move closer to or farther away from each other under the action of the clamp arm driving mechanism to perform the clamping or releasing action on the silicon rod. For example, the clamping parts of the two clamp arms that are relatively arranged along the transfer direction move closer to each other under the drive of the clamp arm driving mechanism to clamp the silicon rod, and while maintaining the clamping state, the silicon rod is pushed from the loading and unloading position to the cutting position along the transfer direction to enable the corresponding silicon rod cutting device to perform a square cutting operation, and after the square cutting operation is completed, the silicon rod is withdrawn from the cutting position to the loading and unloading position along the transfer direction and moves away from each other under the drive of the clamp arm driving mechanism to release the cut silicon rod.

[0114] In some embodiments, the clamp arm driving mechanism includes: a moving guide rail and a clamp arm driving unit, wherein the moving guide rail is arranged along the transfer direction (i.e., the first direction) and is used to set the at least one pair of clamp arms, and in some implementations, the bottom of at least one clamp arm in the at least one pair of clamp arms is provided with a guide groove structure matching the moving guide rail. The clamp arm driving unit is associated with at least one clamp arm in the at least one pair of clamp arms and is used to drive the associated clamp arm to move along the moving guide rail.

[0115] In some embodiments, the clamp arm driving unit includes: a moving rack, which is arranged on the clamp arm mounting seat along the transfer direction; a driving gear, which is arranged on the associated clamp arm and meshes with the moving rack; and a gear driving source, which is used to drive the driving gear to rotate so that the associated clamp arm moves along the transfer direction. The moving rack can adopt a rack structure, and the gear driving source can be, for example, a servo motor. In the above embodiments, the moving rack, the driving gear, and the gear driving source in the clamp arm driving unit can be implemented in different ways.

[0116] In certain implementations, when driving a clamp arm, a clamp arm driving unit may be provided, the clamp arm driving unit comprising a moving rack, a driving gear, and a gear driving source. In practical applications, the driving gear is driven by the gear driving source to rotate so that the associated clamp arm moves along the moving rack, for example, moves closer to another clamp arm (reducing the clamping distance between the two clamp arms) or moves away from another clamp arm (increasing the clamping distance between the two clamp arms).

[0117] In certain implementations, when a pair of clamp arms are to be driven, two clamp arm driving units may be provided, each of which includes a moving rack, a driving gear, and a gear driving source. In practical applications, for each clamp arm, the driving gear is driven by the gear driving source to rotate so that the associated clamp arm moves along the moving rack. In this way, the two clamp arm driving units are used to drive the corresponding clamp arms to move, and the two clamp arms can be driven to move toward each other (the two clamp arms are moved closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms are moved away from each other to increase the clamping distance between the two clamp arms) along the moving rack. In practical applications, in certain embodiments, driving the two clamping arms to move toward or away from each other along the movable rack can be performed synchronously. For example, when driving the two clamping arms to move toward each other along the movable rack, the two clamping arm driving units are executed synchronously, and can respectively drive the corresponding clamping arms to move at the same stepping speed until the silicon rod is clamped. At this time, the silicon rod can be located in the center of the cutting position after being clamped, that is, the center of the length of the silicon rod corresponds to the center of the cutting position in the transfer direction.

[0118] In some embodiments, the clamp arm driving unit includes: a moving rack, which is arranged on the associated clamp arm along the transfer direction; a driving gear, which is arranged on the clamp arm mounting seat and meshes with the moving rack; and a gear driving source, which is used to drive the driving gear to rotate so that the associated clamp arm moves along the transfer direction. The moving rack can adopt a rack structure, and the gear driving source can be, for example, a servo motor. In the above embodiments, the moving rack, the driving gear, and the gear driving source in the clamp arm driving unit can be implemented in different ways.

[0119] In certain implementations, when driving a clamp arm, a clamp arm driving unit may be provided, the clamp arm driving unit comprising a moving rack, a driving gear, and a gear driving source. In practical applications, the driving gear is driven by the gear driving source to rotate so that the associated clamp arm moves along the moving rack, for example, moves closer to another clamp arm (reducing the clamping distance between the two clamp arms) or moves away from another clamp arm (increasing the clamping distance between the two clamp arms).

[0120] In certain implementations, when a pair of clamp arms are to be driven, two clamp arm driving units may be provided, each of which includes a moving rack, a driving gear, and a gear driving source. In practical applications, for each clamp arm, the driving gear is driven by the gear driving source to rotate so that the associated clamp arm moves along the moving rack. In this way, the two clamp arm driving units are used to drive the corresponding clamp arms to move, and the two clamp arms can be driven to move toward each other (the two clamp arms are moved closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms are moved away from each other to increase the clamping distance between the two clamp arms) along the moving rack. In practical applications, in certain embodiments, driving the two clamping arms to move toward or away from each other along the movable rack can be performed synchronously. For example, when driving the two clamping arms to move toward each other along the movable rack, the two clamping arm driving units are executed synchronously, and can respectively drive the corresponding clamping arms to move at the same stepping speed until the silicon rod is clamped. At this time, the silicon rod can be located in the center of the cutting position after being clamped, that is, the center of the length of the silicon rod corresponds to the center of the cutting position in the transfer direction.

[0121] In certain implementations, when a pair of clamp arms are to be driven, a clamp arm driving unit may be provided, the clamp arm driving unit comprising two moving racks, a driving gear, and a gear driving source, wherein each moving rack is associated with a corresponding clamp arm, and the driving gear is disposed on the clamp arm mounting seat and is located between the two moving racks and is simultaneously engaged with the two moving racks. In practical applications, the driving gear is driven by a servo motor to rotate so that the associated two relative clamp arm mounting seats and their clamp arms move toward each other (the two clamp arms move closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms move away from each other to increase the clamping distance between the two clamp arms) along the moving racks. In this embodiment, one clamping arm driving unit can be used to simultaneously drive the two clamping arms to move toward or away from each other along the movable rack. For example, when driving the two clamping arms to move toward each other along the movable rack, the one clamping arm driving unit simultaneously drives the two clamping arms to move synchronously until the silicon rod is clamped. At this time, the silicon rod can be located in the center of the cutting position after being clamped, that is, the center of the length of the silicon rod corresponds to the center of the cutting position in the transfer direction.

[0122] In some embodiments, the clamp arm driving unit includes: a movable screw, which is arranged along the transfer direction and associated with the corresponding clamp arm; and a screw driving source, which is used to drive the movable screw to rotate so that the associated clamp arm moves along the transfer direction. The screw driving source can be, for example, a servo motor. In the above embodiments, the movable screw and the screw driving source in the clamp arm driving unit can be implemented in different ways.

[0123] In some implementations, when driving a clamp arm, a clamp arm driving unit may be provided, the clamp arm driving unit comprising a moving screw and a screw driving source, wherein the moving screw is arranged along the transfer direction and is associated with the corresponding clamp arm. In practical applications, the moving screw is driven to rotate by the screw driving source so that the associated clamp arm moves along the transfer direction, for example, moves closer to the other clamp arm (reducing the clamping distance between the two clamp arms) or moves away from the other clamp arm (increasing the clamping distance between the two clamp arms).

[0124] In certain implementations, when a pair of clamp arms are to be driven, two clamp arm driving units may be provided, each clamp arm driving unit including a moving screw and a screw driving source, wherein each moving screw is associated with a corresponding clamp arm. In practical applications, for each clamp arm, the moving screw is driven to rotate by the screw driving source so that the associated clamp arm moves along the transfer direction, so that the two clamp arm driving units are used to drive the corresponding clamp arms to move, and the two clamp arms can be driven to move toward each other (the two clamp arms are moved closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms are moved away from each other to increase the clamping distance between the two clamp arms) along the moving rack.

[0125] In certain implementations, when a pair of clamp arms need to be driven, a clamp arm driving unit may be provided, the clamp arm driving unit comprising a moving screw and a screw driving source, wherein the moving screw may be, for example, a bidirectional screw, with threads at both ends of the bidirectional screw respectively provided and with threads in opposite directions, and the two ends of the bidirectional screw are respectively associated with a pair of relative clamp arms. In practical applications, the bidirectional screw is driven to rotate by the screw driving source so that the two relative clamp arms associated with each other move toward each other (the two clamp arms move closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms move away from each other to increase the clamping distance between the two clamp arms) along the moving rack.

[0126] Of course, the clamp arm driving unit may still be modified in other ways. For example, in other embodiments, the clamp arm driving unit may include a telescopic cylinder, and both ends of the telescopic cylinder are respectively associated with a pair of clamp arms that are arranged opposite to each other.

[0127] In addition, in some embodiments, the clamp arm is a rotating structure, for example, the silicon rod clamp further includes a clamp arm rotating mechanism, which is used to drive the clamp arm to rotate. In some implementations, the clamp arm rotating mechanism is provided on at least one clamp arm of the at least one pair of clamp arms, and any one clamping portion of the at least one pair of clamp arms or both clamping portions of a pair of clamp arms are provided with a rotatable structure, and under the drive of the clamp arm rotating mechanism, the clamping portion of the clamp arm rotates in the direction of the axis of the silicon rod, and the clamped silicon rod rotates accordingly about the axis of the silicon rod. For example, in some examples, the clamping arm rotation mechanism may be a rotating motor, and the clamping parts of the two clamping arms in the pair of clamping arms are provided with a rotatable structure, and the clamping parts of the two clamping arms or the clamping parts of one of the clamping arms are connected to the output shaft of the rotating motor. For example, the clamping parts of the two clamping arms are respectively connected to a rotating motor, and the two rotating motors respectively drive the clamping parts of the corresponding clamping arms to rotate, or the clamping part of one of the clamping arms is connected to the rotating motor, and the rotating motor drives the clamping part of the corresponding clamping arm to rotate, and utilizes the friction force to conduct through the clamped silicon rod, so as to drive the clamping part of the other clamping arm to rotate.

[0128] In some implementations of this embodiment, the clamping portion of the at least one pair of clamping arms has a contact surface for clamping the silicon rod. The contact surface is arranged on a rotatable platform, and the cross section of the platform can be arranged in a custom regular geometric shape or irregular geometric shape.

[0129] In some embodiments, the rotatable platform can be configured as a whole hinged by a hinge device with a locking function, and can rotate along the axis of the transfer direction. The axis of the rotation axis is connected to the clamp arm rotation mechanism.

[0130] In some embodiments, the clamping portion of the clamping arm may be configured as a rotatable truncated cone, the circular plane of the truncated cone contacts the end face of the silicon rod, and remains relatively still with the end face of the silicon rod after being in close contact with the end face of the silicon rod. The clamping portion also includes a locking structure, and the clamping portion is in a locked state when the silicon rod is subjected to corresponding processing operations (the processing operations may be, for example, cutting, etc.). When the silicon rod is switched, such as when the cutting position is switched, the clamping portion rotates along the center of the truncated cone driven by the clamping arm rotation mechanism.

[0131] In some embodiments, the clamping portion of the clamping arm includes a rotatable truncated cone and a series of protruding contacts arranged on the truncated cone, and each contact has a contact plane. The truncated cone rotates under the drive of the clamping arm rotation mechanism. In an implementation of this embodiment, the protruding length of the contact, that is, the position in the transfer direction, can be adjusted, so that in the process of clamping the silicon rod, for the silicon rod with a low end surface flatness, the protruding length of the contact can be adjusted according to the end surface of the silicon rod, so that each contact surface is in a close contact state with the end surface of the silicon rod. The protruding length is the length in the transfer direction from the circular plane of the truncated cone to the contact plane of the contact.

[0132] In some embodiments, the clamping part of the silicon rod clamp is provided with a pressure sensor to adjust the protruding length of the contact based on the detected pressure state. Generally, in the process of clamping the silicon rod, the pair of clamping arms of the silicon rod clamp are driven by the clamping arm driving mechanism to approach each other along the transfer direction until the contact surface of the clamping part contacts the end face of the silicon rod to be clamped. When the clamping part is provided with multiple contacts and the pressure value detected that the contact between some contacts and the end face of the silicon rod is less than a set value or a set area, the protruding length of the contact can be adjusted (generally in the direction of approaching the end face of the silicon rod) to change the clamping degree; or, each clamping part of the pair of clamping arms of the silicon rod clamp is set as a contact surface. In the process of clamping the silicon rod, the clamping arm driving mechanism drives the end faces of the pair of clamping arms facing the two ends of the silicon rod to approach each other to achieve that after the clamping part contacts the end face of the silicon rod, the clamping degree of the silicon rod is detected by the pressure sensor. When the set pressure range is reached, the clamping arm driving mechanism controls the pair of clamping arms to stop moving toward each other.

[0133] The clamp arm rotation mechanism may be arranged on one of the pair of clamp arms (the other clamp arm only has a rotation function) to drive the clamping parts of the pair of clamp arms and the clamped silicon rod to rotate; or the clamp arm rotation mechanism may be arranged on each clamp arm of the pair of clamp arms and coordinately control the two clamping parts of the pair of clamp arms to rotate at the same angle and direction. In some implementations, the clamp arm rotation mechanism may include a drive motor.

[0134] When the silicon rod cutting device is used to cut the silicon rod, the clamping part can be driven to rotate by the clamping arm rotating mechanism. Usually, when cutting a single crystal silicon rod, the clamping arm rotating mechanism controls the clamping part to rotate a certain angle, such as 90°, so that the silicon rod cutting device can be used to cut one side or two relatively side surfaces of the silicon rod.

[0135] In some embodiments, the silicon rod clamp includes at least one pair of clamp arms and a clamp arm driving mechanism, and the at least one pair of clamp arms are arranged on the transfer channel opposite to each other along the transfer direction, that is, the at least one pair of clamp arms are arranged on the transfer guide rail opposite to each other along the transfer direction. The clamp arm driving mechanism is used to drive at least one clamp arm of the at least one pair of clamp arms to move along the transfer direction. The clamp arm driving mechanism is similar to the clamp arm driving mechanism in the embodiment in which the silicon rod clamp includes a clamp arm mounting seat, at least one pair of clamp arms and a clamp arm driving mechanism, and will not be described in detail here.

[0136] The transfer drive mechanism is used to drive the silicon rod clamp and the silicon rod clamped therein to move along the transfer direction on the transfer channel.

[0137] In some embodiments, the transfer drive mechanism includes: a fixture transfer rail arranged along the transfer direction; and a transfer drive unit, used to drive the silicon rod fixture to move along the fixture transfer rail.

[0138] In certain embodiments, the transfer drive unit includes a transfer rack, a transfer gear, and a gear drive source.

[0139] In some embodiments, taking the silicon rod clamp including a clamp arm mounting seat, at least one pair of clamp arms, and a clamp arm driving mechanism as an example, the transfer rack is arranged along the transfer direction. The transfer gear is associated with the silicon rod clamp and meshes with the transfer rack. Specifically, the transfer gear is associated with the clamp arm mounting seat in the silicon rod clamp. The gear driving source is used to drive the transfer gear to rotate so that the associated silicon rod clamp moves along the transfer direction. The gear driving source can be, for example, a servo motor.

[0140] In certain embodiments, taking the silicon rod clamp including at least one pair of clamp arms and a clamp arm driving mechanism as an example, the transfer rack is arranged along the transfer direction. The transfer gear is associated with the silicon rod clamp and meshes with the transfer rack. Specifically, the transfer gear is associated with the at least one pair of clamp arms. The transfer gear can be associated with at least one pair of clamp arms in the silicon rod clamp in the following manner: at least one pair of clamp arms is connected by a connecting structure (such as a frame, a connecting plate, a connecting frame, etc.), and the driving gear is arranged on the connecting structure. The gear driving source is used to drive the transfer gear to rotate so that the associated at least one pair of clamp arms moves along the transfer direction. The gear driving source can be, for example, a servo motor.

[0141] In some embodiments, the transfer drive unit includes: a transfer screw and a screw drive source.

[0142] In some embodiments, taking the silicon rod clamp including a clamp arm mounting seat, at least one pair of clamp arms, and a clamp arm driving mechanism as an example, the transfer screw is arranged along the transfer direction and is associated with the clamp arm mounting seat in the silicon rod clamp. The screw driving source is used to drive the transfer screw to rotate so that the associated silicon rod clamp moves along the transfer direction. The screw driving source can be, for example, a servo motor.

[0143] In some embodiments, taking the silicon rod clamp including at least one pair of clamp arms and a clamp arm driving mechanism as an example, the transfer screw is associated with at least one pair of clamp arms in the silicon rod clamp. The transfer screw is associated with at least one pair of clamp arms in the silicon rod clamp in the following manner: at least one pair of clamp arms is connected by a connecting structure (such as a frame, a connecting plate, a connecting frame, etc.), and the transfer screw is associated with the connecting structure. The screw drive source is used to drive the transfer screw to rotate so that the associated silicon rod clamp moves along the transfer direction. The screw drive source may be, for example, a servo motor.

[0144] The edge skin anti-collapse device cooperates with the silicon rod transfer device and is used to clamp the end face of the silicon rod when the silicon rod is squared to prevent edge collapse.

[0145] exist Figure 3 In the illustrated embodiment, the edge skin collapse prevention device 13 includes a clamping support 131 , an edge skin clamp 132 , and an edge skin clamp advance and retreat mechanism 133 .

[0146] In some embodiments, the clamping support of the edge skin anti-collapse device is associated with the carrying platform of the silicon rod transfer device, that is, the clamping support of the edge skin anti-collapse device and the carrying platform of the silicon rod transfer device can move forward and backward together.

[0147] The edge skin clamp is arranged on the clamping support. In some embodiments, the edge skin clamp includes a clamping seat, at least one pair of end face clamps, and a clamp driving mechanism. Figure 3 In the illustrated embodiment, the edge skin clamp 132 includes a clamp seat 1321, a pair of end face clamps 1322, and a clamp driving mechanism.

[0148] The chuck driving mechanism is used to drive at least one end face chuck of at least one pair of end face chucks to move along the clamping direction to adjust the clamping distance between the at least one pair of end face chucks.

[0149] In some embodiments, the chuck driving mechanism includes: a chuck moving guide rail arranged along the clamping direction; and a chuck driving unit for driving at least one end face chuck of the at least one pair of end face chucks to move along the chuck moving guide rail.

[0150] In some embodiments, a chuck moving guide rail may be provided between the first end face chuck and the second end face chuck in at least one pair of end face chucks. Figure 3 As shown, a movable guide assembly is provided between the first end face chuck and the second end face chuck in at least one pair of end face chucks, and the movable guide assembly includes one or more movable guide rods or movable guide beams 1323, and a movable guide rail is provided on the movable guide rods or movable guide beams 1223.

[0151] In some embodiments, the chuck drive unit includes at least one chuck telescopic assembly. Figure 3 As shown, the chuck telescopic assembly includes: a chuck telescopic rod and a chuck telescopic cylinder, the chuck telescopic rod is arranged along the clamping direction and is associated with a corresponding end face chuck, and the chuck telescopic cylinder is associated with the chuck telescopic rod. In some embodiments, the chuck driving mechanism is used to drive two end face chucks in a pair of end face chucks to move toward or away from each other along the clamping direction, and the chuck driving mechanism includes a pair of chuck telescopic assemblies, wherein each chuck telescopic assembly corresponds to an end face chuck, the chuck telescopic rod in the chuck telescopic assembly is arranged along the clamping direction and is associated with a corresponding end face chuck, and the chuck telescopic cylinder in the chuck telescopic assembly is associated with the chuck telescopic rod. By using the chuck telescopic cylinders in a pair of chuck telescopic assemblies to control the corresponding chuck telescopic rod to retract or extend, a pair of end face chucks can be driven to move toward or away from each other along the movable guide rails on the movable guide rod or movable guide beam. In certain embodiments, the chuck driving mechanism is used to drive one end face chuck of a pair of end face chucks to move toward or away from the other end face chuck along the clamping direction, and the chuck driving mechanism includes a chuck telescopic assembly corresponding to the end face chuck to be moved, wherein the chuck telescopic rod in the chuck telescopic assembly is arranged along the clamping direction and associated with the corresponding end face chuck, and the chuck telescopic cylinder in the chuck telescopic assembly is associated with the chuck telescopic rod. The chuck telescopic cylinder in the chuck telescopic assembly is used to control the corresponding chuck telescopic rod to retract or extend, so that the corresponding end face chuck can be driven to move along the movable guide rail on the movable guide rod or movable guide beam toward or away from the other end face chuck.

[0152] In some embodiments, the chuck driving unit includes: at least one pair of clamping racks, a driving gear, and a gear driving source. The at least one pair of clamping racks are respectively associated with the at least one pair of end face chucks, that is, the first clamping rack of the at least one pair of clamping racks is arranged along the clamping direction and is associated with the first end face chuck of the at least one pair of end face chucks, the second clamping rack of the at least one pair of clamping racks is arranged along the clamping direction and is associated with the second end face chuck of the at least one pair of end face chucks, and the first clamping rack and the second clamping rack of the at least one pair of clamping racks are arranged in a manner that the teeth are opposite to each other. The driving gear is meshed with the pair of clamping racks, that is, the driving gear is located between the first clamping rack and the second clamping rack of the pair of clamping racks and is respectively meshed with the first clamping rack and the second clamping rack. The gear driving source is used to drive the driving gear to rotate so that at least one pair of meshed clamping racks drive at least one pair of associated end face chucks to move toward or away from each other along the clamping direction, wherein the gear driving source may be, for example, a servo motor, and the output shaft of the servo motor is associated with the driving gear. In practical applications, the servo motor as the gear driving source rotates forward, driving the associated driving gear to rotate forward, so that the first clamping rack and the second clamping rack meshed with the driving gear move toward each other, that is, the first end face chuck associated with the first clamping rack and the second end face chuck associated with the second clamping rack move toward each other, reducing the clamping distance between the first end face chuck and the second end face chuck. The servo motor as the gear driving source rotates reversely, driving the associated driving gear to rotate reversely, so that the first clamping rack and the second clamping rack meshed with the driving gear move away from each other, that is, the first end face chuck associated with the first clamping rack and the second end face chuck associated with the second clamping rack move away from each other, increasing the clamping distance between the first end face chuck and the second end face chuck.

[0153] In some embodiments, the chuck driving unit includes: at least one pair of clamping racks, a linkage gear, and a chuck driving source. The at least one pair of clamping racks are respectively associated with at least one pair of end face chucks, that is, the first clamping rack of the at least one pair of clamping racks is arranged along the clamping direction and is associated with the first end face chuck of the at least one pair of end face chucks, the second clamping rack of the at least one pair of clamping racks is arranged along the clamping direction and is associated with the second end face chuck of the at least one pair of end face chucks, and the first clamping rack and the second clamping rack of the at least one pair of clamping racks are arranged in a manner that the teeth are opposite to each other. The linkage gear is meshed with the pair of clamping racks, that is, the linkage gear is located between the first clamping rack and the second clamping rack of the pair of clamping racks and is respectively meshed with the first clamping rack and the second clamping rack. The chuck driving source is associated with the at least one pair of end face chucks, and is used to cooperate with the at least one pair of clamping racks and the linkage gear to drive the at least one pair of end face chucks to move toward or away from each other along the clamping direction, wherein the chuck driving source can be, for example, a telescopic cylinder, and the two ends of the telescopic cylinder are respectively connected to the first end face chuck and the second end face chuck. In practical applications, the telescopic cylinder as the chuck driving source contracts, and the contracted cylinder can drive the first clamping rack or the second clamping rack to move, and through the first clamping rack, the second clamping rack and the linkage gear between the first clamping rack and the second clamping rack, the associated first end face chuck and the second end face chuck are driven to move toward each other, thereby reducing the clamping distance between the first end face chuck and the second end face chuck. The telescopic cylinder serving as the driving source of the chuck is extended, and the extended cylinder can drive the first clamping rack or the second clamping rack to move, and through the first clamping rack, the second clamping rack and the linkage gear between the first clamping rack and the second clamping rack, the associated first end face chuck and the second end face chuck are driven to move away from each other, thereby increasing the clamping distance between the first end face chuck and the second end face chuck.

[0154] In some embodiments, the chuck driving unit includes: at least one chuck clamping assembly, the chuck clamping assembly includes: a clamping screw and a screw driving source, the clamping screw is arranged along the clamping direction and is associated with a corresponding end face chuck, and the screw driving source is associated with the clamping screw. In some embodiments, the chuck driving mechanism is used to drive two end face chucks in a pair of end face chucks to move toward or away from each other along the clamping direction, then the chuck driving mechanism includes a pair of chuck clamping assemblies, wherein each chuck clamping assembly corresponds to an end face chuck, the clamping screw in the chuck clamping assembly is arranged along the clamping direction and is associated with a corresponding end face chuck, and the screw driving source in the chuck clamping assembly is associated with the clamping screw. In some embodiments, the chuck driving mechanism is used to drive one end face chuck of a pair of end face chucks to move toward or away from the other end face chuck along the clamping direction, and the chuck driving mechanism includes a chuck clamping assembly corresponding to the end face chuck to be moved, wherein the clamping screw in the chuck clamping assembly is arranged along the clamping direction and associated with the corresponding end face chuck, and the screw driving source in the chuck clamping assembly is associated with the clamping screw. The screw driving source can be, for example, a servo motor.

[0155] In some embodiments, the chuck drive unit includes: a bidirectional screw and a screw drive source, wherein the bidirectional screw is arranged along the clamping direction, and the two ends of the bidirectional screw are respectively provided with threads and the thread directions are opposite, and the two ends of the bidirectional screw are respectively associated with at least one pair of end face chucks, and the screw drive source is associated with the bidirectional screw. In practical applications, the bidirectional screw is driven to rotate by the screw drive source (such as a servo motor) so that the two associated opposite end face chucks move toward or away from each other along the clamping direction.

[0156] The at least one pair of end face clamps are arranged opposite to each other along the clamping direction, and are used to correspondingly clamp the two end faces of the silicon rod.

[0157] For any one of at least one pair of end face chucks, the end face chuck includes a silicon rod pressing piece, a side skin pressing piece, and a side skin clamping reinforcement piece, wherein the silicon rod pressing piece is used to press the main body of the silicon rod, the side skin pressing piece is used to press the side skin to be cut in the silicon rod, and the side skin clamping reinforcement piece is used to apply additional clamping force to the side skin. In the present application, a silicon rod with a circular cross-section is formed into a square silicon rod with a rectangular cross-section after a square cutting operation, wherein the main body of the silicon rod refers to the part that at least includes the square silicon rod, that is, the main body of the silicon rod is relative to the side skin, and the main body of the silicon rod is the part that includes the square silicon rod, and the main body of the silicon rod changes in different square cutting operations. In the following description, the main body of the silicon rod is referred to as the silicon rod main body.

[0158] See also Figure 4 , displayed as Figure 3A schematic diagram of the structure of the middle edge skin clamp in one embodiment. Figure 3 and Figure 4 In the illustrated embodiment, the end face chuck includes a clamping base 1324, a silicon rod pressing member 1325 and a side skin pressing member 1326 provided on the clamping base 1324, and a side skin clamping reinforcement member 1327 that moves forward and backward along the clamping direction relative to the clamping base 1324.

[0159] The clamping base 1324 serves as the main body of the end face chuck, and is used to provide a foundation for the silicon rod pressing piece 1325, the edge skin pressing piece 1326, and the edge skin clamping reinforcement piece 1327. In some embodiments, the clamping base may be, for example, a clamping substrate, the size of which is adapted to the end face of the silicon rod and the edge skin to be cut, that is, the clamping substrate at least covers part of the silicon rod body and part of the edge skin. The clamping substrate should cover part of the silicon rod body so that the silicon rod pressing piece arranged thereon can act on the silicon rod body. The clamping substrate should also cover part of the edge skin so that the edge skin pressing piece and the edge skin clamping reinforcement piece arranged thereon can act on the edge skin.

[0160] In such Figure 4 In the illustrated embodiment, in the end face chuck, the silicon rod pressing member 1325 includes a silicon rod pressing screw disposed on the clamping substrate 1324, and the edge skin pressing member 1326 includes an edge skin pressing screw disposed on the clamping substrate 1324. The number of the silicon rod pressing screws may be one or more, and the number of the edge skin pressing screws may be one or more. In practical applications, the silicon rod pressing screw is used to press the silicon rod body, and the edge skin pressing screw is used to press the edge skin to be cut. Under the condition that the silicon rod pressing screw presses the silicon rod body and the edge skin pressing screw presses the edge skin to be cut, it can ensure that the silicon rod body and the edge skin remain relatively stable, and it can be avoided that the edge skin falls off when the cutting wire saw in the wire cutting unit passes through the silicon rod to completely cut off, or the edge skin and the silicon rod body are offset to cause edge collapse.

[0161] It is easy to know that in some cases, the end surface of the silicon rod is not an ideal flat surface, and it may happen that one of the silicon rod pressing piece and the side skin pressing piece cannot effectively resist and press the corresponding silicon rod body or side skin.

[0162] In order to make the silicon rod pressing piece and the side skin pressing piece arranged on the clamping base adapt to the end face of the silicon rod to achieve effective pressing, in some embodiments, the end face clamp also includes an offset fine-tuning structure for adjusting the position of the clamping base. The offset fine-tuning structure can be used to partially adjust the position of the clamping base, thereby changing the position of the silicon rod pressing piece and the side skin pressing piece arranged on the clamping base. Figure 4In the illustrated embodiment, the end face chuck also includes an offset fine-tuning structure for adjusting the clamping substrate 1324. The offset fine-tuning structure can be used to locally adjust the position of the clamping substrate 1324, thereby changing the position of the silicon rod pressing screw and the side skin pressing screw arranged on the clamping substrate 1324.

[0163] In some embodiments, the deflection fine-tuning structure adopts a ball head structure or a similar structure, and the clamping base is arranged by the ball head structure. Figure 4 As shown, the clamping substrate 1324 as a clamping base is arranged on the mounting structure through a ball head structure 1329. In this way, the clamping substrate 1324 can be fine-tuned to a certain extent relative to the mounting structure through the ball head structure 1329, and the positions of the clamping substrate 1324 and the silicon rod pressing screws 1325 and the side skin pressing screws 1326 arranged thereon are changed, so as to adapt to the end face of the silicon rod, even if the end face of the silicon rod is uneven to a certain extent. In some embodiments, the ball head structure is a spherical steel ball, and the spherical steel ball is embedded in a storage cavity and exposes a small half of the contact with the clamping substrate. In some embodiments, the ball head or hemispherical head, the ball head or hemispherical head is connected to the clamping substrate through a connecting rod, and the ball head or hemispherical head is embedded in a storage cavity.

[0164] In some embodiments, the deflection fine-tuning structure adopts a hinge structure, and the clamping base is arranged by the hinge structure. For example, the clamping base is associated with the mounting structure by the hinge structure, and can deflect to a certain extent relative to the mounting structure.

[0165] In addition, in some embodiments, in the end face chuck, the silicon rod pressing member includes a silicon rod pressing elastic member provided on the clamping base, and the side skin pressing member includes a side skin pressing elastic member provided on the clamping base. For example, in some embodiments, the silicon rod pressing elastic member includes a silicon rod push rod, which is sleeved with a compression spring; the side skin pressing elastic member includes a side skin push rod, which is sleeved with a compression spring. In some embodiments, the silicon rod pressing elastic member includes a silicon rod push block, whose rear end is provided with a compression spring; the side skin pressing elastic member includes a side skin push block, whose rear end is provided with a compression spring.

[0166] The end face chuck also includes a side skin clamping reinforcement member, which can move forward and backward relative to the clamping base along the clamping direction. When the side skin clamping reinforcement member moves forward relative to the clamping base, the side skin clamping reinforcement member can provide a strong clamping force on the corresponding side skin. Generally, the clamping force applied by the side skin clamping reinforcement member on the side skin is greater than the pressing force applied by the silicon rod pressing member on the silicon rod body and the pressing force applied by the side skin pressing member on the side skin.

[0167] In some embodiments, the edge skin clamping reinforcement member includes a telescopic top rod or a telescopic top block that is controlled to advance and retreat relative to the clamping base. Figure 4 In the illustrated embodiment, the side skin clamping reinforcement member includes a telescopic top rod or a telescopic top block 1327 and a telescopic driving source 1328, and the telescopic driving source 1328 drives the telescopic top rod or the telescopic top block 1327 to move forward and backward relative to the clamping base plate 1324. In some embodiments, a through hole is provided on the clamping base plate 1324, and the telescopic driving source 1328 and the telescopic top rod or the telescopic top block 1327 are arranged on the mounting structure, and the telescopic driving source 1328 can drive the telescopic top rod or the telescopic top block 1327 to extend out of the clamping base plate 1324 and press against the corresponding side skin, or drive the telescopic top rod or the telescopic top block 1327 to retract into the clamping base plate 1324. The telescopic driving source can be, for example, a telescopic cylinder.

[0168] The end face chuck may be modified in other ways in other embodiments.

[0169] In some embodiments, the end face chuck includes: a first clamping base and a second clamping base, wherein a silicon rod pressing piece is arranged on the first clamping base, and a side skin pressing piece and a side skin clamping reinforcement piece which moves forward and backward along the clamping direction relative to the second clamping base are arranged on the second clamping base.

[0170] In some embodiments, the first clamping base may be, for example, a clamping substrate, whose size is adapted to the end face of the silicon rod body, that is, the first clamping substrate at least covers a portion of the silicon rod body, so that the silicon rod pressing piece disposed thereon can act on the silicon rod body. The second clamping base may be, for example, a clamping substrate, whose size is adapted to the end face of the edge skin to be cut, that is, the first clamping substrate at least covers a portion of the edge skin, so that the edge skin pressing piece disposed thereon can act on the edge skin.

[0171] In the end face chuck, the silicon rod pressing member includes a silicon rod pressing screw provided on the first clamping substrate, and the number of the silicon rod pressing screws can be one or more. The edge skin pressing member includes an edge skin pressing screw provided on the second clamping substrate, and the number of the edge skin pressing screws can be one or more. In practical applications, the silicon rod pressing screw is used to press the silicon rod body, and the edge skin pressing screw is used to press the edge skin to be cut. Under the condition that the silicon rod pressing screw presses the silicon rod body and the edge skin pressing screw presses the edge skin to be cut, it can ensure that the silicon rod body and the edge skin remain relatively stable, and it can be avoided that the edge skin falls off when the cutting wire saw in the wire cutting unit passes through the silicon rod to completely cut off, or the edge skin and the silicon rod body are offset to cause edge collapse.

[0172] In addition, in some embodiments, in the end face chuck, the silicon rod pressing member includes a silicon rod pressing elastic member provided on the first clamping base, and the side skin pressing member includes a side skin pressing elastic member provided on the second clamping base. For example, in some embodiments, the silicon rod pressing elastic member includes a silicon rod push rod, which is sleeved with a compression spring; the side skin pressing elastic member includes a side skin push rod, which is sleeved with a compression spring. In some embodiments, the silicon rod pressing elastic member includes a silicon rod push block, whose rear end is provided with a compression spring; the side skin pressing elastic member includes a side skin push block, whose rear end is provided with a compression spring.

[0173] The end face chuck also includes a side skin clamping reinforcement member, which can move forward and backward relative to the second clamping base along the clamping direction. When the side skin clamping reinforcement member moves forward relative to the second clamping base, the side skin clamping reinforcement member can provide a strong clamping force on the corresponding side skin. Generally, the clamping force applied by the side skin clamping reinforcement member to the side skin is greater than the pressing force applied by the silicon rod pressing member to the silicon rod body and the pressing force applied by the side skin pressing member to the side skin.

[0174] In some embodiments, the side skin clamping reinforcement includes a telescopic top rod or a telescopic top block that is controlled to advance and retreat relative to the second clamping base. For example, the side skin clamping reinforcement includes a telescopic top rod or a telescopic top block and a telescopic driving source, and the telescopic driving source drives the telescopic top rod or the telescopic top block to advance and retreat relative to the second clamping base. In some embodiments, a through hole is provided on the second clamping base, and the telescopic driving source and the telescopic top rod or the telescopic top block are arranged on a mounting structure, and the telescopic driving source can drive the telescopic top rod or the telescopic top block to extend out of the second clamping base and press against the corresponding side skin, or drive the telescopic top rod or the telescopic top block to retract into the second clamping base. Wherein, the telescopic driving source can be, for example, a telescopic cylinder.

[0175] In the present application, when a silicon rod is cut by a silicon rod cutting device, the silicon rod transfer device carries the silicon rod to be cut, and the chuck driving mechanism in the edge skin collapse prevention device drives at least one of the at least one pair of end face chucks to move along the clamping direction, so that the at least one pair of end face chucks clamps the two end faces of the silicon rod, wherein the silicon rod pressing piece in the end face chuck presses against the main body of the silicon rod, and the edge skin pressing piece in the end face chuck presses against the edge skin to be cut in the silicon rod, and the The edge skin clamping reinforcement member in the end face chuck is in a retracted state (in the retracted state, the edge skin clamping reinforcement member is recessed in the clamping base, or protrudes from the clamping base but the protruding height relative to the clamping base is also smaller than the protruding height of the silicon rod pressing member and the edge skin pressing member relative to the clamping base), so that the edge skin and the silicon rod body remain relatively still, which can prevent the edge skin from falling off or the edge skin from being offset from the silicon rod body when the cutting wire saw in the wire cutting unit passes through the silicon rod to be cut to completely cut it off, resulting in edge collapse. After the edge skin is cut, the edge skin clamping reinforcement member in the end face chuck is driven to extend relative to the clamping base and press against the cut edge skin. The clamping force applied by the edge skin clamping reinforcement member on the edge skin is greater than the pressing force applied by the silicon rod pressing member on the silicon rod body and the pressing force applied by the edge skin pressing member on the edge skin. At this time, the at least one pair of end face chucks can be operated to move the cut edge skin.

[0176] In the present application, the edge skin collapse prevention device may further include an edge skin clamp advance and retreat mechanism for driving the edge skin clamp to advance and retreat along an advance and retreat direction.

[0177] In the above description, after the edge skin is cut, the edge skin clamping reinforcement in the end face chuck is driven to extend relative to the clamping base and press against the cut edge skin. At this time, the edge skin clamp is driven to withdraw along the advance and retreat direction by the edge skin clamp advance and retreat mechanism. The clamping force applied by the edge skin clamping reinforcement on the edge skin is greater than the pressing force applied by the silicon rod pressing piece on the silicon rod body and the pressing force applied by the edge skin pressing piece on the edge skin, thereby driving the clamped edge skin to separate from the silicon rod body.

[0178] In some embodiments, the edge skin clamp advance and retreat mechanism includes: a clamp advance and retreat guide rail, arranged along the advance and retreat direction; and an edge skin clamp advance and retreat unit, used to drive the edge skin clamp to move along the clamp advance and retreat guide rail. Figure 3 In the illustrated embodiment, the edge skin clamp advance and retreat mechanism 133 includes: a clamp advance and retreat guide rail 1331 and an edge skin clamp advance and retreat unit.

[0179] In some embodiments, the edge skin clamp advance and retreat unit includes: a clamp seat telescopic rod and a clamp seat telescopic cylinder, wherein the clamp seat telescopic rod is arranged along the advance and retreat direction and is associated with the clamp seat of the edge skin clamp, and the clamp seat telescopic cylinder is associated with the clamp seat telescopic rod. Figure 3In the illustrated embodiment, the skin clamp advance and retreat unit includes: a clamp seat telescopic rod 1333 and a clamp seat telescopic cylinder 1335, wherein the clamp seat telescopic rod 1333 is arranged along the advance and retreat direction and is associated with the clamp seat 1321 of the skin clamp, and the clamp seat telescopic cylinder 1335 can be arranged on a mounting structure and is associated with the clamp seat telescopic rod 1333. In some embodiments, the clamp seat telescopic cylinder 1335 drives the clamp seat telescopic rod to extend, driving the skin clamp 132 to move toward the silicon rod transfer device 12, so that the skin clamp 132 can clamp the end face of the silicon rod. In some embodiments, the clamp seat telescopic cylinder 1335 drives the clamp seat telescopic rod to contract, driving the skin clamp 132 to move away from the silicon rod transfer device 12, so that the skin clamp 132 drives the clamped skin to withdraw to separate from the silicon rod body.

[0180] In certain embodiments, the edge skin clamp advance and retreat unit includes: the edge skin clamp advance and retreat mechanism includes: a clamp seat rack, arranged along the advance and retreat direction and associated with the clamp seat of the edge skin clamp; a clamp seat gear, meshing with the clamp seat rack; a gear drive source, associated with the clamp seat gear, for driving the clamp seat gear to rotate so that the meshed edge skin clamp moves along the advance and retreat direction. Wherein, the gear drive source may be, for example, a servo motor. In practical applications, the servo motor serving as the gear drive source rotates forward, driving the associated clamp seat gear to rotate forward, so that the edge skin clamp associated with the clamp seat gear moves on the meshed clamp seat rack toward the silicon rod transfer device, so that the edge skin clamp can clamp the end face of the silicon rod. On the contrary, the servo motor serving as the gear driving source rotates in the reverse direction, driving the associated clamp seat gear to rotate in the reverse direction, so that the side skin clamp associated with the clamp seat gear moves away from the silicon rod transfer device on the meshing clamp seat rack, so that the side skin clamp drives the clamped side skin to withdraw and disengage from the silicon rod body.

[0181] In certain embodiments, the side skin clamp advance and retreat unit includes: a withdrawal screw and a screw drive source, wherein the withdrawal screw is arranged along the advance and retreat direction and is associated with the clamp seat of the side skin clamp, and the screw drive source is associated with the withdrawal screw. The screw drive source may be, for example, a servo motor. In practical applications, the servo motor serving as the screw drive source rotates forward to drive the withdrawal screw to rotate forward, so that the side skin clamp associated with the withdrawal screw moves toward the silicon rod transfer device, so that the side skin clamp can clamp the end face of the silicon rod. Conversely, the servo motor serving as the screw drive source rotates in the reverse direction to drive the withdrawal screw to rotate in the reverse direction, so that the side skin clamp associated with the withdrawal screw moves away from the silicon rod transfer device, so that the side skin clamp drives the clamped side skin to withdraw to separate from the silicon rod body.

[0182] In the present application, the edge skin anti-collapse device may also include a clamp lifting mechanism for driving the edge skin clamp to move up and down vertically. In some embodiments, the edge skin clamp is moved up or down vertically by the clamp lifting mechanism to adapt to the size of the silicon rods carried by the silicon rod transfer. For example, if the size of the silicon rod to be cut is large, the edge skin clamp is driven to move up vertically by the clamp lifting mechanism, and if the size of the silicon rod to be cut is small, the edge skin clamp is driven to move down vertically by the clamp lifting mechanism.

[0183] In some embodiments, the clamp lifting mechanism includes: a clamp lifting rail and a clamp lifting unit, wherein the clamp lifting rail is arranged vertically. The clamp lifting unit is used to drive the edge skin clamp to move up and down along the clamp lifting rail. Figure 3 In the illustrated embodiment, the fixture lifting mechanism 134 includes a fixture lifting guide rail 1341 and a fixture lifting unit.

[0184] In some embodiments, the edge clamp lifting unit includes: a lifting screw and a screw drive source, the lifting screw is arranged vertically and associated with the clamp seat of the edge clamp, and the screw drive source is associated with the lifting screw. Figure 3 In the illustrated embodiment, the edge clamp lifting unit includes: a lifting screw 1343 and a screw drive source, wherein the lifting screw 1343 is arranged vertically and associated with the mounting structure of the clamp seat on which the edge skin clamp is disposed, and the screw drive source is associated with the lifting screw 1343. The screw drive source may be, for example, a servo motor. In practical applications, the servo motor serving as the screw drive source rotates forward, driving the lifting screw to rotate forward, so that the edge skin clamp associated with the lifting screw moves upward. Conversely, the servo motor serving as the screw drive source rotates reversely, driving the lifting screw to rotate reversely, so that the edge skin clamp associated with the lifting screw moves downward.

[0185] In certain embodiments, the clamp lifting unit includes: a lifting rack, a lifting gear, and a gear driving source, wherein the lifting rack is arranged vertically and associated with the clamp seat of the edge skin clamp, the lifting gear is meshed with the lifting rack, and the gear driving source is associated with the lifting gear, and is used to drive the lifting gear to rotate so that the meshed edge skin clamp is lifted and lowered vertically. Wherein, the gear driving source may be, for example, a servo motor. In practical applications, the servo motor as the gear driving source rotates forward, driving the associated lifting gear to rotate forward, so that the edge skin clamp associated with the clamp seat gear moves upward on the meshed clamp seat rack. Conversely, the servo motor as the gear driving source rotates reversely, driving the associated clamp seat gear to rotate reversely, so that the edge skin clamp associated with the clamp seat gear moves downward on the meshed clamp seat rack.

[0186] So, when applying Figure 3 When the edge skin collapse prevention device 13 is shown, the silicon rod is placed horizontally on the silicon rod carrying platform of the silicon rod transfer device; the edge skin clamp 132 is driven by the clamp lifting mechanism 134 in the edge skin collapse prevention device 13 to move up and down vertically to adjust the position; the edge skin clamp advance and retreat mechanism 133 in the edge skin collapse prevention device 13 drives the edge skin clamp to advance in the advance and retreat direction and approach the silicon rod; the clamp driving mechanism 132 in the edge skin collapse prevention device 13 drives at least one of the at least one pair of end face clamps to move in the clamping direction until the silicon rod pressing piece on the end face clamp presses against the silicon rod body and the edge skin pressing piece on the end face clamp presses against the edge skin to be cut (for details, see Figure 5 Afterwards, the silicon rod cutting device performs a square cutting operation on the silicon rod to form a silicon rod body 100' and a side skin 102 (for details, see Figure 6 ). After the edge skin 102 is cut, the edge skin clamping reinforcement member in the end face chuck is driven to extend relative to the clamping base and press against the cut edge skin 102. At this time, the edge skin clamp 132 is driven to withdraw along the advance and retreat direction by the edge skin clamp advance and retreat mechanism 133. The clamping force applied by the edge skin clamping reinforcement member on the edge skin is greater than the pressure applied by the silicon rod pressing member on the silicon rod body and the pressure applied by the edge skin pressing member on the edge skin, thereby driving the clamped edge skin 102 to separate from the silicon rod body 100' (see for details). Figure 7 The status diagram shown).

[0187] In the present application, the edge skin anti-collapse device also includes an edge skin unloading and conveying mechanism, which is connected with the edge skin clamp advance and retreat mechanism.

[0188] In some embodiments, the edge skin unloading conveying mechanism may include an edge skin bearing structure and a conveying drive mechanism. Figure 8 , which is a schematic diagram of the structure of the edge skin unloading and conveying mechanism in one embodiment. Figure 8 As shown, the edge skin unloading mechanism device may include an edge skin bearing structure 135 and a conveying drive mechanism 136.

[0189] The edge skin bearing structure 135 is used to bear the edge skin. As mentioned above, the edge skin clamped by the edge skin clamp is withdrawn in the forward and backward direction by the edge skin clamp advance and retreat mechanism to drive the edge skin to separate from the silicon rod body, and then the chuck driving mechanism in the edge skin clamp drives the chuck to move to release the clamped edge skin and make it fall on the edge skin bearing structure. In some embodiments, the edge skin bearing structure can be, for example, an edge skin placement groove.

[0190] The conveying drive mechanism 136 is used to convey the edge skin on the edge skin bearing structure 135. In some embodiments, the conveying drive mechanism is a chain conveying mechanism or a transmission belt mechanism. Taking the conveying drive mechanism as a chain conveying mechanism as an example, it includes an annular chain, a chain driving source, and a push-out member, wherein the ring chain is a closed-loop chain, which is wound around a plurality of movable gears to form a preset shape, such as an inverted triangle, a rectangle, or a trapezoid, etc. The chain driving source can be, for example, a servo motor, and the servo motor is associated with one of the movable gears, for example, the output shaft of the servo motor is connected to the gear shaft of the movable gear, and the push-out member can be fixedly arranged on the annular chain, and when the annular chain is driven by the servo motor to operate, the push-out member will interfere with the edge skin carried by the edge skin bearing structure and push the edge skin. In practical applications, the servo motor works to drive the associated movable gear to rotate forward, and the movable gear that rotates forward drives the meshed ring chain to move forward, and the ejector on the forward moving ring chain contacts the side skin and pushes the side skin to move relative to the side skin bearing structure until the material is unloaded. The ejector may be, for example, a lever or a bump.

[0191] As can be seen from the above, the edge skin anti-collapse device in the present application can use the silicon rod pressing member and the edge skin pressing member in the edge skin anti-collapse device to press on the silicon rod body and the edge skin at the same time during the squaring and cutting operation of the silicon rod, so as to provide sufficient support to the silicon rod and the edge skin to be cut, ensure that the silicon rod body and the edge skin remain relatively stable, and avoid the edge skin falling off or the edge skin and the silicon rod body being offset and causing edge collapse when the cutting wire saw in the wire cutting unit passes through the silicon rod to completely cut off. In addition, after the edge skin is cut off, the edge skin clamping reinforcement member and the edge skin clamp advance and retreat mechanism can be used to withdraw the edge skin in the advance and retreat direction to drive the clamped edge skin to separate from the silicon rod body, and the material can be unloaded sequentially to avoid the risk of the edge skin falling off or overturning, thereby ensuring the cutting quality of the silicon rod and the reuse of the edge skin.

[0192] The silicon rod cutting device is arranged on the silicon rod processing platform, and is used for performing square cutting operations on the silicon rods to be cut by the silicon rod transfer device at the corresponding processing station, so as to cut the silicon rods to be cut with a circular cross-section into cut silicon rods with a rectangular cross-section.

[0193] The silicon rod cutting device includes at least one wire cutting unit, and the wire cutting unit has at least one cutting wire saw, and the at least one cutting wire saw is arranged along the vertical direction or at an angle to the vertical direction, wherein the wire cutting unit and the silicon rod transfer device at the corresponding processing station are relatively moved along the transfer direction, and the silicon rod carried by the silicon rod transfer device is squared by the at least one cutting wire saw, so that the cross-section of the silicon rod changes from a circular shape to a rectangular shape after the square cutting operation.

[0194] The silicon rod cutting device includes at least one wire cutting unit, and the wire cutting unit includes a cutting installation structure, a plurality of cutting wheels and a cutting wire arranged on the cutting installation structure. The cutting wire is sequentially wound around the plurality of cutting wheels to form at least one cutting wire saw arranged along the vertical direction or at an angle to the vertical direction. The wire cutting unit moves relative to the silicon rod transfer device and the silicon rod to be cut carried by the silicon rod transfer device at the corresponding processing station, and the at least one cutting wire saw performs a square cutting operation on the silicon rod to be cut carried by the silicon rod transfer device. In some embodiments, the cutting wire is wound between the cutting wheels in a ring-shaped winding manner with the ends connected. In this case, the cutting wire can also be called a closed-loop cutting wire.

[0195] In such Figure 1 and Figure 2 In the illustrated embodiment, the horizontal silicon rod squaring machine is provided with four processing stations, wherein each processing station corresponds to a silicon rod cutting device. For any silicon rod cutting device, at least one cutting wire saw in at least one cutting unit included therein is arranged along the vertical direction or at an angle to the vertical direction, and the at least one cutting wire saw in the at least one cutting unit is used to perform a squaring operation on the silicon rod to be cut which is located at the corresponding processing station and carried by the corresponding silicon rod transfer device, so as to form a cut silicon rod with a rectangular cross section.

[0196] In addition to the wire cutting unit, the silicon rod cutting device may also include a cutting frame or a cutting seat, and the wire cutting unit may be controlled to move relative to the cutting frame or the cutting seat. In certain embodiments, the horizontal silicon rod squaring machine includes a plurality of silicon rod cutting devices, and each silicon rod cutting device includes a cutting frame or a cutting seat and at least one wire cutting unit disposed on the cutting frame or the cutting seat. In certain embodiments, the horizontal silicon rod squaring machine includes a plurality of silicon rod cutting devices, and the plurality of silicon rod cutting devices may share the same cutting frame or cutting seat, that is, all the wire cutting units in the plurality of silicon rod cutting devices are disposed on the same cutting frame or cutting seat. In the case of Figure 1 and Figure 2 In the embodiment shown, the horizontal silicon rod squaring machine is provided with four silicon rod cutting devices corresponding to the number of the four processing stations, and the four silicon rod cutting devices can share the same cutting frame or cutting seat. Any of the plurality of silicon rod cutting devices is lifted and moved relative to the common cutting frame or common cutting seat by a cutting lifting mechanism. In the following description, the cutting frame or cutting seat may be referred to as a common cutting frame or common cutting seat. Fig. 9 , which is a schematic diagram of the structure of a silicon rod cutting device in one embodiment. Figure 1 , Figure 2 as well as Fig. 9As shown, each silicon rod cutting device includes two wire cutting units, and all the wire cutting units in the four silicon rod cutting devices are arranged on the common cutting frame or the common cutting seat and are lifted and lowered relative to the common cutting frame through their respective cutting lifting mechanisms.

[0197] In some embodiments, the cutting lifting mechanism may include: a lifting guide structure and a lifting drive unit.

[0198] In a certain embodiment, the lifting guide structure may be, for example, a lifting guide rail or a lifting guide rod provided on the common cutting frame or the common cutting seat along the lifting direction.

[0199] In a certain embodiment, the lifting drive unit may include: a lifting rack, a lifting gear, and a gear drive source. The lifting rack is arranged along the transfer direction. The lifting gear is associated with the wire cutting unit and meshes with the lifting rack. The gear drive source is used to drive the lifting gear to rotate so that the associated wire cutting unit moves along the lifting direction. In practical applications, the lifting gear is driven by the gear drive source to rotate in the forward direction, and the lifting gear rotating in the forward direction drives the associated wire cutting unit to move upward along the lifting guide rail or the lifting guide rod, and the lifting gear is driven by the gear drive source to rotate in the reverse direction, and the lifting gear rotating in the reverse direction drives the associated wire cutting unit to move downward along the lifting guide rail or the lifting guide rod. The gear drive source may be, for example, a servo motor.

[0200] In a certain embodiment, the lifting drive unit may include: a lifting screw and a lifting drive source, wherein the lifting screw is arranged along the lifting direction and is associated with the corresponding wire cutting unit, and the lifting drive source is used to drive the lifting screw to rotate so as to drive the wire cutting unit to move leftward along the lifting direction. In practical applications, the lifting drive source drives the lifting screw to rotate in the forward direction, and the lifting screw that rotates in the forward direction drives the associated wire cutting unit to move upward along the lifting guide rail or the lifting guide rod, and the lifting drive source drives the lifting screw to rotate in the reverse direction, and the lifting screw that rotates in the reverse direction drives the associated wire cutting unit to move downward along the lifting guide rail or the lifting guide rod. The lifting drive source may be, for example, a servo motor.

[0201] The common cutting frame or common cutting seat is used to set up a silicon rod cutting device. Here, the specific structure of the common cutting frame or common cutting seat can be set to different forms based on the layout requirements of the cutting wheel and the transition wheel, such as a seat body, a column body, a beam body, a plate frame, etc.

[0202] The silicon rod cutting device comprises at least one wire cutting unit. Fig. 9 , which is a schematic diagram of the structure of a wire cutting unit in a silicon rod cutting device in one embodiment. Fig. 9In the illustrated embodiment, the silicon rod cutting device 14 includes two wire cutting units 141. The wire cutting units include: a cutting installation structure 142, a plurality of cutting wheels 143, a transition wheel 144, and a cutting wire 145, wherein the cutting wire is wound around the plurality of cutting wheels and the transition wheel to form at least one cutting wire saw 146, wherein the cutting wire saw 146 is arranged along the vertical direction or at an angle to the vertical direction.

[0203] In some embodiments, the multiple cutting wheels and transition wheels in the wire cutting unit are connected to the cutting mounting structure, or the multiple cutting wheels and transition wheels are arranged on the cutting mounting structure through a bracket, a connecting plate, or a mounting frame. The cutting mounting structure serves as a carrier for associating the multiple cutting wheels and transition wheels in the wire cutting unit with the cutting frame or cutting seat. The specific form of the cutting mounting structure can be a beam body, a plate frame, a bracket, etc., which is not limited in this application.

[0204] In the horizontal silicon rod squaring machine of the present application, at least one cutting wire saw in at least one cutting unit included in the silicon rod cutting device is arranged along the vertical direction or at an angle to the vertical direction.

[0205] In the wire cutting unit, the cutting wheel is provided with at least one cutting wire groove for winding the cutting wire, and the cutting wire groove can limit the position of the cutting wire to control the cutting accuracy. Any of the cutting wire saws is formed between the two cutting wheels after the cutting wire is wound around two cutting wheels arranged opposite to each other, and the positions of the two cutting wheels and the positional relationship between the cutting wheels can be used to determine the direction of the cutting wire saw.

[0206] The transition wheel is used to reverse or guide the cutting line (therefore, generally, the transition wheel can also be called a reversing wheel or a guide wheel), or the transition wheel can be used to adjust the tension of the cutting line (the transition wheel that adjusts the tension can also be called a tension wheel).

[0207] In some embodiments, the wire cutting unit includes: a cutting wire; a first cutting wheel and a second cutting wheel, which are arranged on the cutting mounting structure, and the cutting wire is wound around the first cutting wheel and the second cutting wheel to form a cutting wire saw; wherein the wheel surface of the first cutting wheel is parallel or coplanar with the wheel surface of the second cutting wheel; a first transition wheel, which is adjacent to the first cutting wheel, and when the cutting wire is pulled, the first cutting wheel and the cutting wire of the first transition wheel are located in the plane where the first cutting wire groove for winding the cutting wire is located in the first cutting wheel; a second transition wheel, which is adjacent to the second cutting wheel, and when the cutting wire is pulled, the second cutting wheel and the cutting wire of the second transition wheel are located in the plane where the second cutting wire groove for winding the cutting wire is located in the second cutting wheel. In such a case Figure 1 and Figure 2In the illustrated embodiment, the first cutting wheel and the second cutting wheel are located at the front side of the cutting area and are arranged up and down, that is, the first cutting wheel is at the bottom and the second cutting wheel is at the top, the first transition wheel is located at the rear side of the first cutting wheel, and the second transition wheel is located at the rear side of the second cutting wheel and above the first transition wheel. In the wire cutting unit, the cutting wire is a closed-loop cutting wire, that is, the cutting wire is wound around the first cutting wheel, the second cutting wheel, the second transition wheel, and the first transition wheel in an annular winding manner connected end to end, wherein the cutting wire segment wound between the first cutting wheel and the second cutting wheel forms a cutting wire saw. For example, the cutting wire saw is arranged vertically, and the silicon rod to be cut carried by the silicon rod transfer device at the corresponding processing station is placed horizontally (the axis of the silicon rod to be cut is arranged along the transfer direction). Therefore, in order to achieve the cutting of the silicon rod to be cut, the length of the cutting wire saw is adapted to the size of the end face of the silicon rod to be cut. For example, the length of the cutting wire saw must be greater than or equal to the diameter of the silicon rod to be cut or the chord length of the silicon rod to be cut at the cutting position.

[0208] The direction of the cutting wheel surface corresponds to the direction of the cutting wire saw. It should be understood that the cutting wheel surface is parallel to the plane where any cutting wire groove in the cutting wheel is located. In order to control the cutting accuracy and the stability of the cutting process, the cutting wire saw should be located in the plane where the cutting wire groove used to wind the cutting wire is located; at the same time, during the cutting process, the force direction of the silicon rod on the cutting wire must be parallel to the cutting wire groove, that is, the cutting wheel surface is parallel to the cutting direction. The cutting direction is the direction of the silicon rod axis in the square cutting operation, that is, the transfer direction (that is, the first direction X-axis).

[0209] The silicon rod cutting device comprises two wire cutting units arranged in parallel, each wire cutting unit having at least one cutting wire saw, so that the two wire cutting units form at least two parallel cutting wire saws. Figure 1 and Figure 2 In the illustrated embodiment, the silicon rod cutting device includes two wire cutting units along the transposition direction (second direction Y axis), each wire cutting unit has a cutting wire saw, and the cutting wire saw is arranged along the vertical direction (third direction Z axis). In this way, the two cutting wire saws belonging to the two wire cutting units are arranged along the vertical direction (third direction Z axis).

[0210] In fact, the cutting wire saw may still have other changes. In some embodiments, the cutting wire saw is arranged along the vertical direction, but it is not limited to this. In other embodiments, the position of the cutting wire saw may be located in the vertical plane and arranged at an angle to the vertical direction (i.e., the third direction), the vertical plane is composed of the first direction and the third direction, the angle is less than or equal to 10 degrees (≤10°), or the angle is less than or equal to 5 degrees (≤5°), or the angle is less than or equal to 3 degrees (≤3°), that is, the routing direction of the cutting wire saw may be located in the vertical plane with the third direction (i.e., the vertical direction) and form an angle of less than or equal to 10 degrees (≤10°), less than or equal to 5 degrees (≤5°), or less than or equal to 3 degrees (≤3°) with the third direction (i.e., the vertical direction). The angle here is not limited to an integer angle, and it may be any angle within a limited range, for example, 0.09°, 1.3°, 2.5°, 3°, etc. The size of the deflection angle is related to the aforementioned middle silicon rod pressing piece and the side skin pressing piece, that is, the deflection angle of the cutting line pitch is related to the protruding height of the silicon rod pressing piece and the side slope pressing piece protruding from the clamping base. If the protruding height of the silicon rod pressing piece and the side slope pressing piece protruding from the clamping base is large, the deflection angle of the cutting line pitch has a larger selection range; if the protruding height of the silicon rod pressing piece and the side slope pressing piece protruding from the clamping base is small, the deflection angle of the cutting line pitch has a smaller selection range. In some embodiments, in the two cutting wheels arranged up and down to form a cutting wire saw, the upper cutting wheel is in front in the first direction and the lower cutting wheel is in the back in the first direction, and the cutting wire saw formed can form a positive deflection angle with the vertical. In some embodiments, in the two cutting wheels arranged up and down to form a cutting wire saw, the upper cutting wheel is in the back in the first direction and the lower cutting wheel is in the front in the first direction, and the cutting wire saw formed can form a negative deflection angle with the vertical. Among them, the deflection angle (including positive deflection angle and negative deflection angle) can be changed according to the cutting process requirements and the size specifications of the edge skin bar to be cut. For example, the deflection angle can be adjusted by changing the position of one or both of the two cutting wheels arranged upper and lower related to the cutting wire saw.

[0211] The cutting wheel and transition wheel in the wire cutting unit are wound by a ring-shaped cutting wire. In this example, the silicon rod cutting device can omit the wire storage drum, etc., and the ring-shaped cutting wire can achieve cutting by running through the driving device.

[0212] In the existing silicon rod cutting device, the cutting wire is wound from the pay-off drum to the cutting wheel and the transition wheel in the wire cutting unit, and then wound from the wire cutting unit to the take-up drum. During the squaring cutting operation, the cutting wire is driven to run, and the running process of the cutting wire is an alternating acceleration and deceleration process. In the silicon rod cutting device of the present application, the annular cutting wire in the wire cutting unit can maintain continuous high-speed operation, and at the same time, the annular cutting wire can run in the same direction during the squaring cutting operation. In this way, the wire cutting unit of the present application can realize high-precision squaring cutting operations, avoiding problems such as ripples on the cutting surface caused by the reversal of the cutting wire operation or the running speed in the existing cutting method; at the same time, the annular cutting wire can effectively reduce the total length of the cutting wire required by the wire cutting unit, thereby reducing production costs.

[0213] In addition, the silicon rod cutting device also includes a cutting wire driving device, which is used to drive the cutting wire to operate so as to cut the silicon rod.

[0214] The principle of wire cutting is that a high-speed steel wire drives a cutting blade attached to the steel wire or directly uses a diamond wire to rub the workpiece to be processed, thereby achieving the purpose of wire cutting. Here, the cutting wire driving device is used to realize the operation of the cutting wire.

[0215] In some embodiments, the cutting line driving device is a servo motor having a power output shaft and the power output shaft is connected to the first cutting wheel or the second cutting wheel or a related transition wheel (such as the first transition wheel or the second transition wheel), so that the cutting line can be driven by the wound cutting wheel to run along the winding direction. Of course, in a specific implementation, the cutting line driving device can also be another driving source such as a hydraulic motor, as long as it can drive the cutting line to run, and this application does not limit it.

[0216] In some embodiments, the silicon rod cutting device further includes a tension adjustment mechanism. In the wire cutting process, the tension of the cutting wire affects the yield and processing accuracy of the cutting process, and the tension adjustment mechanism detects the tension and adjusts the tension so that the tension of the cutting wire reaches a certain threshold value set and maintains a constant value during cutting or takes the constant value as a certain range allowed by the center of the value.

[0217] In some embodiments, the tension adjustment mechanism 147 is associated with the transition wheel 144. The transition wheel 144 in the wire cutting unit not only guides and pulls the cutting wire 145, but also serves as a tensioning wheel for adjusting the tension of the cutting wire.

[0218] The tension wheel is used to adjust the tension of the cutting wire, which can reduce the probability of the cutting wire breaking and reduce consumables. In the square cutting operation, the cutting wire plays a vital role, but even the best cutting wire has limited elongation and wear resistance, which means that the cutting wire will gradually become thinner during continuous operation until it is finally broken. Therefore, current wire cutting equipment generally has a cutting wire tension compensation mechanism to compensate for the elongation of the cutting wire during its reciprocating movement, and the use of a tension wheel is one means of implementation.

[0219] In some embodiments, taking the tensioning wheel as the transition wheel as an example, the tension adjustment mechanism includes at least: a tension sensor, a servo motor and a screw rod; the tension sensor is arranged on the transition wheel, continuously senses the tension value of the cutting line on the transition wheel, and sends a driving signal when the tension value is less than a preset value; the servo motor is electrically connected to the tension sensor, and is used to start working after receiving the driving signal sent by the tension sensor; one end of the screw rod is connected to the transition wheel, and the other end is connected to the servo motor, and when the servo motor is working, it pulls the transition wheel for unidirectional displacement to adjust the tension of the cutting line.

[0220] In some embodiments, the tension adjustment mechanism includes: a connecting rod assembly and a tension driving unit, wherein the connecting rod assembly is associated with a transition wheel serving as a tensioning wheel and the tension driving unit, and the connecting rod assembly is controlled by the tension driving unit, that is, the tension driving unit drives the connecting rod assembly to drive the transition wheel to change its position to adjust the tension of the closed-loop cutting line.

[0221] Regarding the tension driving unit, in some implementations, the tension driving unit may include a counterweight portion, and the counterweight portion may be associated with a connecting rod assembly. For example, taking a certain transition wheel as a tensioning wheel, when the tension of the closed-loop cutting line is to be increased, the counterweight portion is released, the counterweight portion is lowered, and the connecting rod assembly drives the associated tensioning wheel to move under the action of the gravity of the counterweight portion, thereby expanding the circumference of the figure surrounded by each cutting wheel and the transition wheel, and increasing the tension of the closed-loop cutting line. When the tension of the closed-loop cutting line is to be reduced, the counterweight portion is lifted, and the connecting rod assembly drives the associated tensioning wheel to move in the opposite direction under the action of the gravity of the counterweight portion, thereby expanding the circumference of the figure surrounded by each cutting wheel and the transition wheel, and reducing the tension of the closed-loop cutting line.

[0222] The counterweight part may include counterweight blocks, wherein the number of the counterweight blocks may vary according to the requirement of adjusting the tension of the closed-loop cutting line. For example, when the tension of the closed-loop cutting line is increased, the number of counterweight blocks may be increased, and when the tension of the closed-loop cutting line is reduced, the number of counterweight blocks may be reduced.

[0223] In some embodiments, the counterweight may include a locking mechanism for locking the counterweight so that the counterweight is stationary relative to the cutting mounting structure, so that the counterweight and the cutting mounting structure are switched from an active state to a locked state. In some examples, the locking mechanism may be, for example, a latch.

[0224] The tension driving unit may still be modified in other ways. For example, in some implementations, the tension driving unit may include a tension cylinder.

[0225] In some embodiments, the silicon rod cutting device further includes: at least one distance adjustment mechanism 148, which is provided on the at least one wire cutting unit, and is used to drive the plurality of cutting wheels in the wire cutting unit to move relative to the cutting frame or the cutting seat in a direction perpendicular to the wheel surface of the cutting wheel. The silicon rod cutting device can realize the switching of the cutting wire between different cutting grooves of the cutting wheel based on the distance adjustment mechanism, or adjust the position of the cutting wire saw to change the cutting position (or processing specification) relative to the silicon rod.

[0226] In some implementations, a wire cutting unit in a silicon rod cutting device is used as an example for description, and the wire cutting unit includes a plurality of cutting wheels and a transition wheel. The carrier for carrying the plurality of cutting wheels and the transition wheel is, for example, a cutting installation structure, and the distance adjustment mechanism can be used to drive the cutting installation structure as a whole to move along the perpendicular direction of the cutting wheel surface, and the transition wheel and the cutting wheel move along the perpendicular direction of the cutting wheel surface (i.e., the transposition direction or the second direction Y axis) following the cutting installation structure. In this state, the plurality of cutting wheels and the transition wheel are relatively stationary, that is, the positional relationship between the transition wheel and the cutting wheel remains unchanged. At this time, the distance adjustment mechanism is used to adjust the cutting position of at least one wire saw in the at least one wire cutting unit relative to the silicon rod.

[0227] In some implementations, each cutting wheel has at least two cutting wire grooves, and different cutting wire grooves are parallel to each other and have a cutting offset in the direction perpendicular to the wheel surface of the cutting wheel. When the distance adjustment mechanism is used to drive the multiple cutting wheels in the wire cutting unit to move relative to the cutting installation structure, the position of the wire groove on the cutting wheel around which the cutting wire is wound can be changed. In some implementations, the multiple cutting wheels in the wire cutting unit can be connected to a bracket, for example, wherein the bracket is movably arranged on the cutting installation structure and driven by the distance adjustment mechanism to move along the direction perpendicular to the wheel surface of the cutting wheel.

[0228] When the at least one distance adjusting mechanism is used to realize the change of the cutting wire grooves around which the cutting wire is wound in the at least one cutting unit, in an actual scenario, the cutting wire grooves corresponding to the cutting wires before and after the groove change can be predetermined, for example, the position of the cutting wire before the groove change is the cutting wire groove a1, and the cutting wire is wound around the cutting wire groove a2 after the groove change, and the displacement of the multiple cutting wheels in the cutting unit driven by the at least one distance adjusting mechanism is determined based on the cutting offset between the cutting wire groove a1 and the cutting wire groove a2, that is, the displacement is set to the cutting offset between the cutting wire groove a1 and the cutting wire groove a2, which can be used to realize the replacement of the cutting wire from the cutting wire groove a1 to the cutting wire groove a2; it should be noted that the direction in which the multiple cutting wheels in the cutting unit driven by the at least one distance adjusting mechanism move in the direction perpendicular to the wheel surface of the cutting wheel is the direction in which the cutting wire groove a2 points to the cutting wire groove a1, and the cutting position of the cutting wire saw in space remains unchanged after the groove change, so the step of further calibrating the position of the cutting wheel or other components is omitted, and the silicon rod can be cut according to the preset cutting amount, so that the groove change process is simplified.

[0229] To further illustrate the implementation method of the at least one distance adjustment mechanism to realize the movement of multiple cutting wheels in the wire cutting unit relative to the cutting frame in a direction perpendicular to the wheel surface of the cutting wheel, the present application discloses the following embodiments. When the number of wire cutting units in the silicon rod cutting device is different, the specific form of the at least one distance adjustment mechanism can be changed accordingly.

[0230] In some embodiments, the silicon rod cutting device includes a single-wire cutting unit, and the single-wire cutting unit is a wire cutting unit. The pitch adjustment mechanism includes: a screw rod, which is arranged along the orthogonal direction of the cutting wheel surface and is threadedly connected to the single-wire cutting unit; and a screw rod driving source, which is used to drive the screw rod to rotate.

[0231] The single-wire cutting unit in the silicon rod cutting device includes a plurality of cutting wheels, and the cutting wire is wound around the plurality of cutting wheels to form at least one cutting wire saw. The screw of the pitch adjustment mechanism has a distal end and a proximal end. In a specific implementation, for example, the proximal end of the screw can be connected to a screw drive source and rotated under the drive of the screw drive source, and the distal end of the screw is threadedly connected to the single-wire cutting unit. Through the connection method at both ends of the screw, the screw can rotate based on the transmission of the screw drive source and convert the screw rotation into axial displacement by means of threaded connection. The axial displacement direction is the setting direction of the screw, that is, the orthogonal direction of the cutting wheel surface; the displacement of the single-wire cutting unit in the orthogonal direction of the cutting wheel surface can be achieved by driving the screw drive source in the pitch adjustment mechanism to rotate. The screw is driven to rotate in different directions, so that the cutting wheel of the single-wire cutting unit can move forward or backward in the orthogonal direction of the cutting wheel surface.

[0232] In some embodiments, the silicon rod cutting device includes a single-wire cutting unit, and here, the single-wire cutting unit is a wire cutting unit. The distance adjustment mechanism includes: a telescopic member, which is arranged along the orthogonal direction of the cutting wheel surface and is associated with the single-wire cutting unit; a telescopic member driving source, which is used to drive the telescopic member to perform telescopic movement along the orthogonal direction of the cutting wheel surface. Here, the telescopic member can be set as a rod body structure and the extension direction of the rod body is the orthogonal direction of the cutting wheel surface. The telescopic member can be telescopically moved along its extension direction under the drive of the telescopic member driving source. One end of the telescopic member can be connected to the telescopic member driving source, and the retractable free end is associated with the single-wire cutting unit, that is, the cutting wheel of the single-wire cutting unit can be driven to move in the orthogonal direction of the cutting wheel surface under the action of the telescopic member driving source. The telescopic member is, for example, an electric telescopic rod, or a connecting rod connected to a cylinder cone rod. The cylinder can be used as a telescopic member driving source, and this application does not limit it. The telescopic rod can be connected to the single-wire cutting unit in a linear connection or an indirect connection, for example, it can be directly connected to the cutting mounting structure of the single-wire cutting unit, or indirectly connected to the single-wire cutting unit through a support or a bearing. It should be understood that the extension or contraction of the telescopic member can correspond to the advancement or retreat of the single-wire cutting unit along the orthogonal direction of the cutting wheel surface.

[0233] Here, in the embodiments disclosed in the present application, the association can be achieved, for example, by one or more of snap-fit, screw-locking, bonding, and welding. For example, in the above embodiments, the telescopic rod can be associated with the wire cutting unit by one or more of snap-fit, screw-locking, bonding, and welding; of course, the implementation method of the association is not limited to this, but is intended to achieve transmission in the second direction.

[0234] In some embodiments, the silicon rod cutting device includes a single-wire cutting unit, and here, the single-wire cutting unit is a wire cutting unit. The distance adjustment mechanism includes: a rack, which is arranged on the single-wire cutting unit along the orthogonal direction of the cutting wheel surface; a transmission gear, which is meshed with the rack; and a gear driving source, which is used to drive the transmission gear to rotate. The transmission gear rotates under the drive of the gear driving source, and the rack meshed with the transmission gear moves along the step direction of the rack accordingly. In this example, the rotational motion driven by the gear driving source can be converted into wire transport along the direction of the rack by cooperating with the transmission gear. The rack is arranged on the single-wire cutting unit along the orthogonal direction of the cutting wheel surface, which can drive the cutting wheel of the single-wire cutting unit to move along the orthogonal direction of the cutting wheel surface. At the same time, the gear driving source controls the switching of the rotation direction of the transmission gear, so that the multiple cutting wheels of the single-wire cutting unit can move forward or backward along the orthogonal direction of the cutting wheel surface.

[0235] In certain embodiments, such as Fig. 9As shown, the silicon rod cutting device includes two wire cutting units arranged in parallel and opposite to each other, such as a first wire cutting unit and a second wire cutting unit, and at least one of the first wire cutting unit and the second wire cutting unit is driven by the at least one distance adjustment mechanism to move along the orthogonal direction of the cutting wheel surface, so as to adjust the wire cutting wire saw spacing between at least one cutting wire saw in the first wire cutting unit and at least one cutting wire saw in the second wire cutting unit, or to change the cutting wire winding around the cutting wire grooves of multiple cutting wheels in the first wire cutting unit and / or the cutting wire grooves of multiple cutting wheels in the second wire cutting unit.

[0236] The at least one distance adjustment mechanism can be configured to be connected to the first wire cutting unit or the second wire cutting unit, or to be associated with the first wire cutting unit and the second wire cutting unit at the same time, so as to drive the multiple cutting wheels in the connected or associated first wire cutting unit and / or the second wire cutting unit to move along the orthogonal direction of the cutting wheel surface.

[0237] In certain embodiments, the distance adjustment mechanism includes: a screw, which is arranged along the orthogonal direction of the cutting wheel surface and is threadedly connected to the first wire cutting unit or the second wire cutting unit; and a screw drive source, which is used to drive the screw to rotate. The way in which the screw and the screw drive source drive the multiple cutting wheels in the first wire cutting unit or the second wire cutting unit to move in the orthogonal direction of the cutting wheel surface is similar to the aforementioned embodiment. The first cutting unit or the second wire cutting unit driven by the distance adjustment mechanism can be regarded as a single wire cutting unit, which will not be described in detail here. It should be understood that by providing the distance adjustment mechanism on any wire cutting unit, the spacing between the parallel cutting wire saws formed between the first wire cutting unit and the second wire cutting unit can be increased or decreased, and the silicon rod cutting device can cut the silicon rods into different specifications.

[0238] In some embodiments, the distance adjustment mechanism includes: a telescopic member, which is arranged along the orthogonal direction of the cutting wheel surface and is associated with the first wire cutting unit or the second wire cutting unit; and a telescopic member driving source, which is used to drive the telescopic member to perform telescopic movement along the orthogonal direction of the cutting wheel surface. Here, the first cutting unit or the second wire cutting unit provided with the distance adjustment mechanism can be regarded as a single wire cutting unit, and the specific implementation method can refer to the above embodiment, which will not be repeated here.

[0239] In some embodiments, the pitch adjustment mechanism includes: a pitch adjustment rack, which is along the orthogonal direction of the cutting wheel surface and is associated with the first wire cutting unit or the second wire cutting unit; a transmission gear, which is meshed with the pitch adjustment rack; and a gear driving source, which is used to drive the transmission gear to rotate. Through the meshing transmission gear and the pitch adjustment rack, the gear driving source can control the pitch adjustment rack to move along the rack direction line, and the first wire cutting unit or the second wire cutting unit associated with the pitch adjustment rack can drive multiple cutting wheels to move along the orthogonal direction of the cutting wheel surface through the rack.

[0240] In some embodiments, the distance adjustment mechanism includes: a bidirectional screw, which is arranged along the orthogonal direction of the cutting wheel surface and is threadedly connected to the first wire cutting unit and the second wire cutting unit; and a screw driving source, which is used to drive the screw to rotate so that the first wire cutting unit and the second wire cutting unit move toward or away from each other along the orthogonal direction of the cutting wheel surface. In one embodiment, the bidirectional screw is a double-threaded screw, and the two ends of the bidirectional screw are respectively provided with threads and the thread directions are opposite. The screw driving source can be set at either end of the bidirectional screw to drive the bidirectional screw to rotate along the screw shaft. Through the threads with opposite directions at both ends of the bidirectional screw, when the bidirectional screw rotates under the drive of the screw driving source, the movement of the two ends of the bidirectional screw is converted into axial linear motion in opposite directions. The axial direction is the orthogonal direction of the cutting wheel surface where the bidirectional screw is set. Under the drive of the screw driving source, the multiple cutting wheels corresponding to the first wire cutting unit and the second wire cutting unit can move toward or away from each other.

[0241] In certain embodiments, the distance adjustment mechanism includes a servo motor provided on the at least one wire cutting unit. In an actual scenario, a servo motor is provided on at least one wire cutting unit or each wire cutting unit of the silicon rod cutting device, and the servo motor controls the displacement of the corresponding wire cutting unit in the orthogonal direction of the cutting wheel surface. The wire cutting unit can predetermine the cutting offset of the slot change or the adjustment amount of the cutting line to change the cutting position, and drive the multiple cutting wheels in the wire cutting unit to move along the orthogonal direction of the cutting wheel surface with a preset displacement through the precise positioning function of the servo motor. For example, a single-wire cutting unit is provided in the silicon rod cutting device, and a servo motor is provided on the single-wire cutting unit to drive the single-wire cutting unit to move along the orthogonal direction of the cutting wheel surface; for another example, a first wire cutting unit and a second wire cutting unit are provided in the silicon rod cutting device, and the first wire cutting unit and / or the second wire cutting unit are relatively independently moved along the orthogonal direction of the cutting wheel surface under the drive of their corresponding servo motors. In some examples, the servo motor can also be replaced with a travel motor and a travel screw. It should be understood that the distance adjustment mechanism is a driving device that drives multiple cutting wheels in the wire cutting unit to move relative to the cutting frame, and its specific form is not limited in this application.

[0242] As mentioned above, in the horizontal silicon rod squaring machine, the cutting wire saw of the wire cutting unit in the silicon rod cutting device is arranged vertically or at an angle to the vertical, driving the silicon rod transfer device and the silicon rods it carries to move along the transfer direction, and the wire cutting unit and the silicon rod transfer device at the corresponding processing station are relatively moved along the transfer direction, and the silicon rods carried by the silicon rod transfer device are squared by the at least one cutting wire saw, so that the cross-section of the silicon rod changes from a circular shape to a rectangular shape after the square cutting operation.

[0243] The silicon rod to be cut is cut by a wire cutting unit so that a cutting surface and a side skin are formed on the silicon rod to be cut, that is, a cutting wire saw in a wire cutting unit is used to cut the silicon rod to be cut so that a cutting surface is formed on the silicon rod to be cut and a side skin is left after cutting.

[0244] The horizontal silicon rod squaring machine of the present application may further include an edge skin anti-collapse device, which is used to stabilize the edge skin when the silicon rod cutting device performs a squaring operation on the silicon rod to be cut.

[0245] It should be understood that the silicon rods carried by the silicon rod transfer device are horizontal, that is, the axis of the silicon rods is consistent with the transfer direction (i.e., the first direction X axis). Therefore, the edge skin formed by the silicon rod cutting device performing the square cutting operation on the silicon rods is also horizontal.

[0246] The horizontal silicon rod squaring machine of the present application further comprises a silicon rod loading and unloading device for loading the silicon rods to be cut onto the processing stations of the silicon rod processing platform and for unloading the cut silicon rods from the processing stations of the silicon rod processing platform.

[0247] In certain embodiments, the silicon rod loading and unloading device includes: a silicon rod mounting frame, a silicon rod clamp, and a clamp shifting mechanism, wherein the silicon rod mounting frame is straddled on the machine base along a shifting direction, the silicon rod clamp is used to clamp two end surfaces of the silicon rod, and the clamp shifting mechanism is used to drive the silicon rod clamp to move along the shifting direction to move the silicon rod clamp on the silicon rod mounting frame to switch between multiple processing stations.

[0248] In such Figure 1 and Figure 2 In the illustrated embodiment, the horizontal silicon rod squaring machine of the present application includes a silicon rod loading and unloading device, which can be arranged at the loading and unloading area of ​​the silicon rod processing platform, and is used to load the silicon rods to be cut onto the processing stations of the silicon rod processing platform and to unload the cut silicon rods from the processing stations of the silicon rod processing platform. The loading and unloading area is located at the side of the silicon rod processing platform.

[0249] The silicon rod loading and unloading device 15 comprises: a silicon rod mounting frame 151, a silicon rod clamp 152, and a clamp replacement mechanism.

[0250] The silicon rod mounting frame is straddled on the machine base along the transposition direction. In some embodiments, the silicon rod mounting frame is straddled on the machine base along the transposition direction, the transposition direction is consistent with the second direction, the length of the silicon rod mounting frame should be able to cover the entire silicon rod processing platform of the machine base, and when the silicon rod processing platform is provided with a plurality of processing stations extending along the second direction, the length of the silicon rod mounting frame should be long enough to cover the plurality of processing stations.

[0251] The silicon rod clamp is used to clamp the two end faces of the silicon rod. In some embodiments, the silicon rod clamp includes a clamp mounting frame and a silicon rod clamp. Fig.10 , which is a schematic diagram of the structure of a silicon rod fixture in one embodiment. Figure 1 and Fig.10 In the illustrated embodiment, the silicon rod clamp 152 includes a clamp mounting frame 1521 and a silicon rod clamp 1522 .

[0252] The clamp mounting frame is arranged on the silicon rod mounting frame.

[0253] The clamp mounting frame is used to set the silicon rod clamping piece. Here, the specific structure of the clamp mounting frame can be set to different forms based on the arrangement requirements of the silicon rod clamping piece, such as a beam body, a frame, a plate frame, etc.

[0254] The silicon rod clamp is arranged on the fixture mounting frame. In some embodiments, the silicon rod clamp is lifted and moved relative to the fixture mounting frame by a fixture lifting mechanism.

[0255] The silicon rod clamp is used to clamp the silicon rod. In some embodiments, the silicon rod clamp includes: a clamp arm mounting seat, at least one pair of clamp arms, and a clamp arm driving mechanism.

[0256] The clamp arm mounting seat is arranged on the clamp mounting frame.

[0257] As mentioned above, in some embodiments, the silicon rod clamp is lifted and lowered relative to the clamp mounting frame by a clamp lifting mechanism.

[0258] In some embodiments, the clamp lifting mechanism includes: a lifting guide rod and a lifting drive unit. The lifting guide rod is arranged along the lifting direction and is used to set the silicon rod clamp. Specifically, the lifting guide rod is associated with the clamp arm mounting seat. The lifting drive unit is used to drive the silicon rod clamp to move up and down along the lifting guide rod. In some implementations, the lifting drive unit includes: a drive motor and a screw rod assembly arranged along the lifting direction and driven by the drive motor, the drive motor can be arranged at one end of the screw rod assembly and arranged on the clamp mounting frame, the screw rod assembly is controlled by the drive motor and is screwed to the clamp arm mounting seat of the silicon rod clamp. In this way, when the clamp lifting mechanism is used, the drive motor drives the screw rod assembly to rotate forward, and then drives the silicon rod clamp connected to the screw rod assembly to move up along the lifting guide rod, or the drive motor drives the screw rod assembly to rotate in the opposite direction, and then drives the silicon rod clamp connected to the screw rod assembly to move down along the lifting guide rod.

[0259] The at least one pair of clamp arms are arranged on the clamp arm mounting seat opposite to each other along the transfer direction, and are used to clamp the two end faces of the silicon rod. Any one of the at least one pair of clamp arms is provided with a clamping portion for directly contacting and clamping the silicon rod. In some embodiments, the clamp arm extends downward from the clamp arm mounting seat, that is, the bottom of the clamp arm is arranged on the clamp arm seat, and the top of the clamp arm is provided with a clamping portion for contacting and clamping the end face of the silicon rod. In the present application, for the silicon rod to be cut, the silicon rod to be cut is a cylindrical structure with a certain length, and its length direction is placed along the transfer direction (i.e., the first direction), and the end faces are the faces at both ends of the length direction. For the cut silicon rod, the cut silicon rod is a rectangular parallelepiped structure with a certain length (its cross section is rectangular or quasi-rectangular), and its length direction is placed along the transfer direction (i.e., the first direction), and the end faces are the faces at both ends of the length direction.

[0260] The silicon rod clamp further comprises a clamp arm driving mechanism, which can drive at least one of the at least one pair of clamp arms to move along the transfer direction to adjust the clamping distance between the pair of oppositely disposed clamp arms. In this way, the clamping parts of the at least one pair of clamp arms can move closer to or farther from each other under the action of the clamp arm driving mechanism to perform the clamping or releasing action on the silicon rod.

[0261] In some embodiments, the clamp arm driving mechanism includes: a moving guide rail and a clamp arm driving unit, wherein the moving guide rail is arranged along the transfer direction (i.e., the first direction) and is used to set the at least one pair of clamp arms, and in some implementations, the bottom of at least one clamp arm in the at least one pair of clamp arms is provided with a guide groove structure matching the moving guide rail. The clamp arm driving unit is associated with at least one clamp arm in the at least one pair of clamp arms and is used to drive the associated clamp arm to move along the moving guide rail.

[0262] In some embodiments, the clamp arm driving unit includes: a moving rack, which is arranged on the clamp arm mounting seat along the transfer direction; a driving gear, which is arranged on the associated clamp arm and meshes with the moving rack; and a gear driving source, which is used to drive the driving gear to rotate so that the associated clamp arm moves along the transfer direction. The moving rack can adopt a rack structure, and the gear driving source can be, for example, a servo motor. In the above embodiments, the moving rack, the driving gear, and the gear driving source in the clamp arm driving unit can be implemented in different ways.

[0263] In certain implementations, when driving a clamp arm, a clamp arm driving unit may be provided, the clamp arm driving unit comprising a moving rack, a driving gear, and a gear driving source. In practical applications, the driving gear is driven by the gear driving source to rotate so that the associated clamp arm moves along the moving rack, for example, moves closer to another clamp arm (reducing the clamping distance between the two clamp arms) or moves away from another clamp arm (increasing the clamping distance between the two clamp arms).

[0264] In certain implementations, when a pair of clamp arms are to be driven, two clamp arm driving units may be provided, each of which includes a moving rack, a driving gear, and a gear driving source. In practical applications, for each clamp arm, the driving gear is driven by the gear driving source to rotate so that the associated clamp arm moves along the moving rack. In this way, the two clamp arm driving units are used to drive the corresponding clamp arms to move, and the two clamp arms can be driven to move toward each other (the two clamp arms are moved closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms are moved away from each other to increase the clamping distance between the two clamp arms) along the moving rack.

[0265] In some embodiments, the clamp arm driving unit includes: a moving rack, which is arranged on the associated clamp arm along the transfer direction; a driving gear, which is arranged on the clamp arm mounting seat and meshes with the moving rack; and a gear driving source, which is used to drive the driving gear to rotate so that the associated clamp arm moves along the transfer direction. The moving rack can adopt a rack structure, and the gear driving source can be, for example, a servo motor. In the above embodiments, the moving rack, the driving gear, and the gear driving source in the clamp arm driving unit can be implemented in different ways.

[0266] In certain implementations, when driving a clamp arm, a clamp arm driving unit may be provided, the clamp arm driving unit comprising a moving rack, a driving gear, and a gear driving source. In practical applications, the driving gear is driven by the gear driving source to rotate so that the associated clamp arm moves along the moving rack, for example, moves closer to another clamp arm (reducing the clamping distance between the two clamp arms) or moves away from another clamp arm (increasing the clamping distance between the two clamp arms).

[0267] In certain implementations, when a pair of clamp arms are to be driven, two clamp arm driving units may be provided, each of which includes a moving rack, a driving gear, and a gear driving source. In practical applications, for each clamp arm, the driving gear is driven by the gear driving source to rotate so that the associated clamp arm moves along the moving rack. In this way, the two clamp arm driving units are used to drive the corresponding clamp arms to move, and the two clamp arms can be driven to move toward each other (the two clamp arms are moved closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms are moved away from each other to increase the clamping distance between the two clamp arms) along the moving rack.

[0268] In certain implementations, when a pair of clamp arms are to be driven, a clamp arm driving unit may be provided, the clamp arm driving unit comprising two moving racks, a driving gear, and a gear driving source, wherein each moving rack is associated with a corresponding clamp arm, and the driving gear is disposed on the clamp arm mounting seat and is located between the two moving racks and is simultaneously engaged with the two moving racks. In practical applications, the driving gear is driven by a servo motor to rotate so that the associated two relative clamp arm mounting seats and their clamp arms move toward each other (the two clamp arms move closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms move away from each other to increase the clamping distance between the two clamp arms) along the moving racks.

[0269] In some embodiments, the clamp arm driving unit includes: a movable screw, which is arranged along the transfer direction and associated with the corresponding clamp arm; and a screw driving source, which is used to drive the movable screw to rotate so that the associated clamp arm moves along the transfer direction. The screw driving source can be, for example, a servo motor. In the above embodiments, the movable screw and the screw driving source in the clamp arm driving unit can be implemented in different ways.

[0270] In some implementations, when driving a clamp arm, a clamp arm driving unit may be provided, the clamp arm driving unit comprising a moving screw and a screw driving source, wherein the moving screw is arranged along the transfer direction and is associated with the corresponding clamp arm. In practical applications, the moving screw is driven to rotate by the screw driving source so that the associated clamp arm moves along the transfer direction, for example, moves closer to the other clamp arm (reducing the clamping distance between the two clamp arms) or moves away from the other clamp arm (increasing the clamping distance between the two clamp arms).

[0271] In certain implementations, when a pair of clamp arms are to be driven, two clamp arm driving units may be provided, each clamp arm driving unit including a moving screw and a screw driving source, wherein each moving screw is associated with a corresponding clamp arm. In practical applications, for each clamp arm, the moving screw is driven to rotate by the screw driving source so that the associated clamp arm moves along the transfer direction, so that the two clamp arm driving units are used to drive the corresponding clamp arms to move, and the two clamp arms can be driven to move toward each other (the two clamp arms are moved closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms are moved away from each other to increase the clamping distance between the two clamp arms) along the moving rack.

[0272] In certain implementations, when a pair of clamp arms need to be driven, a clamp arm driving unit may be provided, the clamp arm driving unit comprising a moving screw and a screw driving source, wherein the moving screw may be, for example, a bidirectional screw, with threads at both ends of the bidirectional screw respectively provided and with threads in opposite directions, and the two ends of the bidirectional screw are respectively associated with a pair of relative clamp arms. In practical applications, the bidirectional screw is driven to rotate by the screw driving source so that the two relative clamp arms associated with each other move toward each other (the two clamp arms move closer to each other to reduce the clamping distance between the two clamp arms) or move away from each other (the two clamp arms move away from each other to increase the clamping distance between the two clamp arms) along the moving rack.

[0273] Of course, the clamp arm driving unit can still be changed in other ways. For example, in some embodiments, the clamp arm driving unit may include a telescopic cylinder, and the two ends of the telescopic cylinder are respectively associated with a pair of clamp arms arranged opposite to each other. Alternatively, in some embodiments, the clamp arm driving unit includes a clamp arm telescopic assembly, and the clamp arm telescopic assembly includes: a clamp arm telescopic rod and a clamp arm telescopic cylinder, the clamp arm telescopic rod is associated with a corresponding clamp arm, and the clamp head telescopic cylinder is associated with the clamp head telescopic rod.

[0274] In addition, in some embodiments, the clamp arm is a rotating structure, for example, the silicon rod clamp further includes a clamp arm rotating mechanism, which is used to drive the clamp arm to rotate. In some implementations, the clamp arm rotating mechanism is provided on at least one clamp arm of the at least one pair of clamp arms, and any one clamping portion of the at least one pair of clamp arms or both clamping portions of a pair of clamp arms are provided with a rotatable structure, and under the drive of the clamp arm rotating mechanism, the clamping portion of the clamp arm rotates in the direction of the axis of the silicon rod, and the clamped silicon rod rotates accordingly about the axis of the silicon rod. For example, in some examples, the clamping arm rotation mechanism may be a rotating motor, and the clamping parts of the two clamping arms in the pair of clamping arms are provided with a rotatable structure, and the clamping parts of the two clamping arms or the clamping parts of one of the clamping arms are connected to the output shaft of the rotating motor. For example, the clamping parts of the two clamping arms are respectively connected to a rotating motor, and the two rotating motors respectively drive the clamping parts of the corresponding clamping arms to rotate, or the clamping part of one of the clamping arms is connected to the rotating motor, and the rotating motor drives the clamping part of the corresponding clamping arm to rotate, and utilizes the friction force to conduct through the clamped silicon rod, so as to drive the clamping part of the other clamping arm to rotate.

[0275] In some implementations of this embodiment, the clamping portion of the at least one pair of clamping arms has a contact surface for clamping the silicon rod. The contact surface is arranged on a rotatable platform, and the cross section of the platform can be arranged in a custom regular geometric shape or irregular geometric shape.

[0276] In some embodiments, the rotatable platform can be configured as a whole hinged by a hinge device with a locking function, and can rotate along the axis of the transfer direction. The axis of the rotation axis is connected to the clamp arm rotation mechanism.

[0277] In some embodiments, the clamping portion of the clamping arm may be configured as a rotatable truncated cone, the circular plane of the truncated cone contacts the end face of the silicon rod, and remains relatively still with the end face of the silicon rod after being in close contact with the end face of the silicon rod. The clamping portion also includes a locking structure, and the clamping portion is in a locked state when the silicon rod is subjected to corresponding processing operations (the processing operations may be, for example, cutting, etc.). When the silicon rod is switched, such as when the cutting position is switched, the clamping portion rotates along the center of the truncated cone driven by the clamping arm rotation mechanism.

[0278] In some embodiments, the clamping portion of the clamping arm includes a rotatable truncated cone and a series of protruding contacts arranged on the truncated cone, and each contact has a contact plane. The truncated cone rotates under the drive of the clamping arm rotation mechanism. In an implementation of this embodiment, the protruding length of the contact, that is, the position in the transfer direction, can be adjusted, so that in the process of clamping the silicon rod, for the silicon rod with a low end surface flatness, the protruding length of the contact can be adjusted according to the end surface of the silicon rod, so that each contact surface is in a close contact state with the end surface of the silicon rod. The protruding length is the length in the transfer direction from the circular plane of the truncated cone to the contact plane of the contact.

[0279] In some embodiments, the clamping part of the silicon rod clamp is provided with a pressure sensor to adjust the protruding length of the contact based on the detected pressure state. Generally, in the process of clamping the silicon rod, the pair of clamping arms of the silicon rod clamp are driven by the clamping arm driving mechanism to approach each other along the transfer direction until the contact surface of the clamping part contacts the end face of the silicon rod to be clamped. When the clamping part is provided with multiple contacts and the pressure value detected that the contact between some contacts and the end face of the silicon rod is less than a set value or a set area, the protruding length of the contact can be adjusted (generally in the direction of approaching the end face of the silicon rod) to change the clamping degree; or, each clamping part of the pair of clamping arms of the silicon rod clamp is set as a contact surface. In the process of clamping the silicon rod, the clamping arm driving mechanism drives the end faces of the pair of clamping arms facing the two ends of the silicon rod to approach each other to achieve that after the clamping part contacts the end face of the silicon rod, the clamping degree of the silicon rod is detected by the pressure sensor. When the set pressure range is reached, the clamping arm driving mechanism controls the pair of clamping arms to stop moving toward each other.

[0280] The clamp arm rotation mechanism may be arranged on one of the pair of clamp arms (the other clamp arm only has a rotation function) to drive the clamping parts of the pair of clamp arms and the clamped silicon rod to rotate; or the clamp arm rotation mechanism may be arranged on each clamp arm of the pair of clamp arms and coordinately control the two clamping parts of the pair of clamp arms to rotate at the same angle and direction. In some implementations, the clamp arm rotation mechanism may include a drive motor.

[0281] When the silicon rod cutting device is used to cut the silicon rod, the clamping part can be driven to rotate by the clamping arm rotating mechanism. Usually, when cutting a single crystal silicon rod, the clamping arm rotating mechanism controls the clamping part to rotate a certain angle, such as 90°, so that the silicon rod cutting device can be used to cut one side or two relatively side surfaces of the silicon rod.

[0282] In the horizontal silicon rod squaring machine of the present application, the silicon rod loading and unloading device further includes a centering adjustment mechanism for adjusting the position of the silicon rod to be cut so that the axis of the silicon rod to be cut corresponds to the predetermined center line. Fig.10In the illustrated embodiment, the centering adjustment mechanism 143 includes at least two clamping assemblies spaced apart in the transfer direction, each of the clamping assemblies includes two clamping members disposed on the clamping arm mounting seat in the clamping direction and a telescopic drive unit associated with the two clamping members, the telescopic drive unit is used for the two clamping members to telescopically move relative to the clamping arm mounting seat in the clamping direction, wherein the clamping direction is perpendicular to the transfer direction and forms a horizontal plane, that is, the clamping direction is the second direction. The clamping member may be, for example, a clamping plate or a clamping strip, and the telescopic drive unit may be, for example, a telescopic cylinder or a servo motor with a screw rod. In practical applications, when the silicon rod is horizontally placed on a silicon rod transfer device (for example, the silicon rod transfer device includes a carrying platform, and the silicon rod is horizontally placed on the carrying platform) and the silicon rod needs to be centered, at least two clamping components in the centering adjustment mechanism can be operated, that is, the telescopic drive unit in the clamping component drives the two clamping parts to retract and move relative to the clamping arm mounting seat in the clamping direction, and the silicon rod between the two can be clamped to complete the centering operation. The operation is simple and fast.

[0283] The fixture transposition mechanism is used to drive the silicon rod fixture to move along the transposition direction to switch between multiple processing stations.

[0284] In some embodiments, the fixture transposition mechanism comprises: a fixture transposition guide rail and a fixture transposition drive unit, wherein the fixture transposition guide rail is arranged on the silicon rod mounting frame along the transposition direction, and the fixture transposition drive unit is associated with the silicon rod fixture and is used to drive the associated silicon rod fixture to move along the fixture transposition guide rail. The transposition direction is perpendicular to the transfer direction and forms a horizontal plane, that is, Figure 1 The second direction is the Y axis.

[0285] In some embodiments, the fixture transposition drive unit includes: a transposition rack, a driving gear, and a gear drive source. The transposition rack is arranged along the transposition direction, the driving gear is arranged on the silicon rod fixture and meshes with the transposition rack, and the gear drive source is used to drive the driving gear to rotate so that the associated silicon rod fixture moves along the transposition direction.

[0286] In such Figure 1 and Figure 2In the illustrated embodiment, the fixture transposition drive unit includes: a transposition rack, a driving gear, and a gear driving source. The transposition rack is arranged along the transposition direction, and the length range of the transposition guide rail in the transposition direction at least covers the positions of the corresponding processing stations and silicon rod cutting devices in the horizontal silicon rod squaring machine, so as to ensure that the silicon rod fixture can be transferred to cover the various processing stations. The movable rack can adopt a rack structure. The driving gear is arranged on the fixture mounting frame of the silicon rod fixture and meshes with the transposition rack. The gear driving source is arranged on the fixture mounting frame of the silicon rod fixture and is associated with the driving gear. In practical applications, the gear driving source can be used to drive the driving gear to rotate to drive the silicon rod fixture to move along the transposition direction through the transposition rack. For example, the gear driving source drives the driving gear to rotate forward, and through the cooperation between the driving gear and the transposition rack, the associated silicon rod clamp is driven to move forward in the transposition direction (for example, move in the direction from the first processing station to the sixth cutting work); the gear driving source drives the driving gear to rotate reversely, and through the cooperation between the driving gear and the transposition rack, the associated silicon rod clamp is driven to move backward in the transposition direction (for example, move in the direction from the sixth processing station to the first cutting work).

[0287] Of course, the structure of the clamp transposition drive unit can still be changed in other ways. For example, in some embodiments, the clamp transposition drive unit may include: a transposition screw, which is arranged along the transposition direction and is associated with the clamp mounting frame of the silicon rod clamp; a screw drive source, which is used to drive the transposition screw to rotate so that the associated silicon rod clamp moves along the transposition direction. In some embodiments, the chain conveying mechanism includes an annular chain and a chain drive source, the annular chain is associated with the clamp mounting frame of the silicon rod clamp, the loop chain may be, for example, a closed-loop chain, which is wound around a plurality of movable gears to form a preset shape, and the chain drive source may be, for example, a servo motor.

[0288] As mentioned above, in the horizontal silicon rod squaring machine of the present application, the number of silicon rod loading and unloading devices included is not limited to Figure 1 and Figure 2 In one of the embodiments shown, the number of silicon rod loading and unloading devices can be adjusted differently according to the overall time of the squaring operation (the factors involved in the squaring operation include but are not limited to the number of processing stations, the specifications of the silicon rods, the time taken to square the silicon rods at each processing station, etc.). For example, in some embodiments, when the number of processing stations is small and the time taken to square the silicon rods at each processing station is small, the horizontal silicon rod squaring machine can be equipped with a silicon rod loading and unloading device, such as Figure 1 and Figure 2Embodiment shown. In some embodiments, when the number of processing stations is large, the horizontal silicon rod square machine may be equipped with one or more silicon rod loading and unloading devices, for example, one silicon rod loading and unloading device is provided on each of the two opposite sides of the horizontal silicon rod square machine along the transposition direction. In some embodiments, when the number of processing stations is large and each processing station takes a long time to perform square cutting, the horizontal silicon rod square machine may be equipped with multiple silicon rod loading and unloading devices, for example, one silicon rod loading and unloading device is provided on each of the two opposite sides of the horizontal silicon rod square machine along the transposition direction.

[0289] In some embodiments, the silicon rod handling device described above can also be used to clamp the edge skin and unload it.

[0290] In the present application, the horizontal silicon rod squaring machine further includes a side skin unloading device for unloading the side skin to be cut off from the processing station of the silicon rod processing platform.

[0291] In some embodiments, the side skin unloading device includes: a side skin mounting frame, a side skin adsorption member, and an adsorption member shifting mechanism, wherein the side skin mounting frame is straddled on the machine base along the shifting direction, the side skin adsorption member is used to adsorb the side skin, and the adsorption member shifting mechanism is used to drive the adsorption member to move on the side skin mounting frame along the shifting direction.

[0292] In such Figure 1 and Figure 2 In the illustrated embodiment, the horizontal silicon ingot squaring machine includes an edge skin unloading device, which can be arranged at the loading and unloading area of ​​the silicon ingot processing platform, and is used to unload the edge skin to be cut from the processing station of the silicon ingot processing platform. The loading and unloading area is located at the side of the silicon ingot processing platform.

[0293] The edge skin unloading device 16 includes: an edge skin mounting frame 161, an edge skin adsorption member 162, and an adsorption member replacement mechanism.

[0294] The side skin mounting frame is straddled on the machine base along the transposition direction. In some embodiments, the side skin mounting frame is straddled on the machine base along the transposition direction, the transposition direction is consistent with the second direction, the length of the side skin mounting frame should be able to cover the entire silicon rod processing platform of the machine base, and when the silicon rod processing platform is provided with a plurality of processing stations extending along the second direction, the length of the side skin mounting frame should be long enough to cover the plurality of processing stations.

[0295] The edge skin adsorption member is used to adsorb the edge skin. In some embodiments, the edge skin unloading device includes an adsorption member installation structure, and a plurality of edge skin adsorption members are provided on the adsorption member installation structure along the transfer direction (i.e., the length direction of the edge skin). In some embodiments, the edge skin adsorption member includes a suction cup.

[0296] Wherein, the edge skin adsorption piece is lifted and lowered relative to the edge skin mounting frame through an adsorption piece lifting mechanism.

[0297] In some embodiments, the adsorption member lifting mechanism includes: a lifting guide rod and a lifting drive unit. The lifting guide rod is arranged along the lifting direction and is used to set the edge skin adsorption member. Specifically, the lifting guide rod is associated with the adsorption member mounting structure of the edge skin adsorption member. The lifting drive unit is used to drive the edge skin adsorption member to move up and down along the lifting guide rod. In some implementations, the lifting drive unit includes: a drive motor and a screw rod assembly arranged along the lifting direction and driven by the drive motor, the drive motor and the screw rod assembly can be arranged on the adsorption member mounting structure, wherein the drive motor can be arranged at one end of the screw rod assembly, the screw rod assembly is controlled by the drive motor and is associated with the adsorption member mounting frame of the edge skin adsorption member. In this way, when the edge skin lifting mechanism is used, the drive motor drives the screw rod assembly to rotate forward, and then drives the adsorption member mounting frame and the edge skin adsorption member thereon to move upward along the lifting guide rod, or the drive motor drives the screw rod assembly to rotate in the opposite direction, and then drives the adsorption member mounting frame and the edge skin adsorption member thereon to move downward along the lifting guide rod.

[0298] The suction piece shifting mechanism is used to drive the edge skin suction piece to move along the shifting direction so as to switch between multiple processing stations.

[0299] In some embodiments, the suction member transposition mechanism comprises: a suction member transposition guide rail and a suction member transposition drive unit, wherein the suction member transposition guide rail is arranged on the edge skin mounting frame along the transposition direction, and the suction member transposition drive unit is associated with the edge skin suction member and is used to drive the associated edge skin suction member to move along the suction member transposition guide rail. The transposition direction is perpendicular to the transfer direction and forms a horizontal plane, that is, Figure 1 The second direction is the Y axis.

[0300] In some embodiments, the adsorption member transposition drive unit includes: a transposition rack, a driving gear, and a gear drive source. The transposition rack is arranged along the transposition direction, the driving gear is arranged on the side skin adsorption member and meshes with the transposition rack, and the gear drive source is used to drive the driving gear to rotate so that the associated side skin adsorption member moves along the transposition direction.

[0301] In such Figure 1 and Figure 2In the illustrated embodiment, the adsorption member transposition drive unit includes: a transposition rack, a driving gear, and a gear driving source. The transposition rack is arranged along the transposition direction, and the length range of the transposition guide rail in the transposition direction at least covers the positions of the corresponding processing stations and silicon rod cutting devices in the horizontal silicon rod squaring machine, so as to ensure that the adsorption member can be transferred to cover the various processing stations. The movable rack can adopt a rack structure. The driving gear is arranged on the adsorption member mounting frame of the edge skin adsorption member and meshes with the transposition rack. The gear driving source is arranged on the adsorption member mounting frame of the edge skin adsorption member and is associated with the driving gear. In actual applications, the gear driving source can be used to drive the driving gear to rotate to drive the edge skin adsorption member to move along the transposition direction through the transposition rack. For example, the gear driving source drives the driving gear to rotate forward, and through the cooperation between the driving gear and the transposition rack, the associated silicon rod clamp is driven to move forward in the transposition direction (for example, move in the direction from the first processing station to the sixth cutting work); the gear driving source drives the driving gear to rotate reversely, and through the cooperation between the driving gear and the transposition rack, the associated silicon rod clamp is driven to move backward in the transposition direction (for example, move in the direction from the sixth processing station to the first cutting work).

[0302] Of course, the structure of the adsorption component transposition drive unit can still be changed in other ways. For example, in some embodiments, the adsorption component transposition drive unit may include: a transposition screw, which is arranged along the transposition direction and is associated with the adsorption component mounting frame of the side skin adsorption component; a screw drive source, which is used to drive the transposition screw to rotate so that the associated side skin adsorption component moves along the transposition direction. In some embodiments, the chain conveying mechanism includes an annular chain and a chain drive source, and the annular chain is associated with the adsorption component mounting frame of the side skin adsorption component. The ring chain may be, for example, a closed-loop chain, which is wound around a plurality of movable gears to form a preset shape, and the chain drive source may be, for example, a servo motor.

[0303] As mentioned above, in the horizontal silicon rod squaring machine of the present application, the number of the edge skin unloading devices included is not limited to Figure 1 and Figure 2 In one of the embodiments shown, the number of the edge skin unloading devices can be adjusted differently according to the overall time of the squaring operation (the factors involved in the squaring operation include but are not limited to the number of processing stations, the specifications of the silicon rods, the time taken to square the silicon rods at each processing station, etc.). For example, in some embodiments, when the number of processing stations is small and the time taken to square the silicon rods at each processing station is small, the horizontal silicon rod squaring machine can be equipped with an edge skin unloading device, such as Figure 1 and Figure 2Embodiment shown. In some embodiments, when the number of processing stations is large, the horizontal silicon rod square machine may be equipped with one or more edge skin unloading devices, for example, one edge skin unloading device is provided on each of the two opposite sides of the horizontal silicon rod square machine along the transposition direction. In some embodiments, when the number of processing stations is large and each processing station takes a long time to perform squaring cutting, the horizontal silicon rod square machine may be equipped with multiple edge skin unloading devices, for example, one edge skin unloading device is provided on each of the two opposite sides of the horizontal silicon rod square machine along the transposition direction.

[0304] The horizontal silicon rod squaring machine of the present application also includes a crystal line detection device.

[0305] See also Fig.11 , which is a schematic diagram of the structure of a crystal line detection device in one embodiment. Fig.11 As shown, the crystal line detection device 16 includes: at least two support structures 161 arranged at a distance, the support structure 161 has a support roller group arranged along the transfer direction and used to support the silicon rod 100 to be cut; a roller driving source 162, used to drive each support roller in the support roller group to rotate so as to drive the silicon rod 100 to be cut to rotate; a crystal line measuring probe, located between the at least two support structures 161.

[0306] The at least two supporting structures are arranged at intervals along the transfer direction, and each supporting structure has a supporting roller group, wherein the supporting roller group includes two or more rollers arranged along the transfer direction, and each roller belonging to the same supporting roller group is connected by a rotating shaft arranged along the transfer direction, and when the supporting roller group is used to support the silicon rod to be cut, the wheel surface of each roller in the supporting roller group contacts the silicon rod to be cut. In addition, in this embodiment, the at least two supporting structures arranged at intervals along the transfer direction can also be movable, that is, at least one of the at least two supporting structures can be moved along the transfer direction to adjust the support spacing of the at least two supporting structures, so as to be suitable for supporting silicon rods of various specifications and sizes to be cut.

[0307] The roller driving source is used to drive each supporting roller in the supporting roller group to rotate, wherein the roller driving source can be, for example, a servo motor, and the servo motor can be associated with at least one supporting roller group through, for example, a chain (group) or a gear group.

[0308] In actual applications, when the silicon rod to be cut with a circular cross-section is placed in a horizontal state on the supporting structure of the crystal line detection device, the axis of the silicon rod to be cut is consistent with the transfer direction. After that, the roller driving source can drive each supporting roller in the supporting roller group to rotate so as to utilize the friction between the supporting roller and the silicon rod to be cut to drive the silicon rod to be cut to rotate, thereby completing the crystal line detection operation.

[0309] The horizontal silicon rod squaring machine disclosed in the present application is provided with a plurality of processing stations and a plurality of silicon rod cutting devices and a plurality of silicon rod transfer devices corresponding to the plurality of processing stations, so that the plurality of silicon rod cutting devices can simultaneously perform silicon rod squaring and cutting operations on the silicon rods carried by the silicon rod transfer devices at the corresponding processing stations, greatly improving the cutting efficiency of the silicon rods. At the same time, the horizontal silicon rod squaring machine has the advantages of simple overall structure, strong equipment scalability, and space saving. At the same time, the horizontal silicon rod squaring machine is equipped with a side skin anti-collapse device, which can use the silicon rod pressing piece and the side skin pressing piece in the side skin anti-collapse device to press on the silicon rod body and the side skin at the same time during the silicon rod squaring and cutting operation, giving sufficient support to the silicon rod and the side skin to be cut, ensuring that the silicon rod body and the side skin remain relatively stable, and preventing the side skin from falling off or the side skin from offsetting with the silicon rod body when the cutting wire saw in the wire cutting unit passes through the silicon rod to completely cut off, resulting in side collapse.

[0310] When using the Figures 1 to 3 When the horizontal silicon rod squaring machine in the embodiment shown (the silicon rod transfer device in the horizontal silicon rod squaring machine includes a transfer channel, a carrying platform, and a transfer drive mechanism) performs silicon rod squaring and cutting operations, reference can be made to Fig.12 The schematic diagram shows the status of the silicon rod at various stages during the square cutting operation.

[0311] The specific process can be roughly as follows:

[0312] First, a silicon rod to be cut with a circular cross section is horizontally placed on a crystal line detection device, and the crystal line detection device drives the silicon rod to be cut to rotate to complete the crystal line detection operation.

[0313] Next, the silicon rod to be cut is clamped from the crystal line detection device by using the silicon rod loading and unloading device and transferred to the silicon rod transfer device corresponding to the loading and unloading area of ​​the corresponding processing station. The silicon rod to be cut is placed horizontally and the axis of the silicon rod is consistent with the transfer direction. When the silicon rod to be cut is placed on the silicon rod transfer device corresponding to the corresponding processing station, the silicon rod is supported by the upper fork (i.e., the V-shaped part) of the Y-shaped bearing structure in the silicon rod transfer device corresponding to the corresponding processing station. The two inner inclined surfaces of the upper fork are in contact with the arc surface of the silicon rod to be cut. In this way, the silicon rod with a circular cross-section can also be centered, that is, the axis of the silicon rod to be cut corresponds to the center of the upper intersection (i.e., the bottom groove of the V-shaped part).

[0314] Next, the edge skin clamp is driven by the edge skin clamp advance and retreat mechanism to advance to the silicon rod in the advance and retreat direction, and the edge skin clamp of the edge skin anti-collapse device is driven to clamp the silicon rod to be cut, that is, the silicon rod pressing piece in the edge skin anti-collapse device presses on the silicon rod body and the edge skin pressing piece in the edge skin anti-collapse device presses on the edge skin to be cut. At this time, the cutting wire saw in the silicon rod cutting device is located between the front edge skin clamp and the silicon rod; the silicon rod transfer device is driven to carry the silicon rod from the loading and unloading position to the cutting position along the transfer direction, and the silicon rod cutting device and the silicon rod transfer device are relatively moved along the transfer direction, and the two cutting wire saws (the cutting wire saws are arranged vertically) arranged opposite to each other in the silicon rod cutting device perform the first square cutting operation on the silicon rod to be cut carried by the silicon rod transfer device, so that the silicon rod to be cut forms two cutting surfaces and two edge skins. At this time, the cutting wire saw in the silicon rod cutting device is located between the rear edge skin clamp and the silicon rod.

[0315] Next, the side skin clamping reinforcement and the side skin clamp advance and retreat mechanism in the side skin collapse prevention device are utilized, that is, the side skin clamp is driven by the side skin clamp advance and retreat mechanism to retreat in the advance and retreat direction, and the side skin clamped by the side skin clamp through the side skin clamping reinforcement can be retreated in the advance and retreat direction to drive the clamped side skin to separate from the silicon rod body.

[0316] Next, the silicon rod transfer device is driven to carry the silicon rod and the edge skin after the first square cutting operation and retreat along the transfer direction away from the cutting position to the loading and unloading position; the edge skin clamp of the edge skin anti-collapse device is released, and the edge skin is unloaded by means of the edge skin unloading conveying mechanism and the edge skin unloading device; the silicon rod is clamped from the silicon rod transfer device by the silicon rod loading and unloading device, rotated 90°, and then placed on the silicon rod transfer device. At this time, the top of the upper fork of the Y-shaped bearing structure in the silicon rod transfer device bears the silicon rod, and the top of the upper fork forms a bearing surface, which is consistent with the horizontal plane and contacts with the cutting surface of the silicon rod.

[0317] Next, the position of the silicon rod to be cut is adjusted using the centering adjustment mechanism in the silicon rod loading and unloading device so that the axis line of the silicon rod to be cut corresponds to the predetermined center line, that is, the axis line of the silicon rod to be cut corresponds to the center of the upper intersection (that is, the bottom groove of the V-shaped part).

[0318] Next, the edge skin clamp is driven by the edge skin clamp advance and retreat mechanism to advance to the silicon rod along the advance and retreat direction, and the edge skin clamp of the edge skin anti-collapse device is driven to clamp the silicon rod to be cut, that is, the silicon rod pressing piece in the edge skin anti-collapse device presses on the silicon rod body and the edge skin pressing piece in the edge skin anti-collapse device presses on the edge skin to be cut. At this time, the cutting wire saw in the silicon rod cutting device is located between the front edge skin clamp and the silicon rod; the silicon rod transfer device is driven to carry the silicon rod from the loading and unloading position to the cutting position along the transfer direction, and The silicon rod cutting device and the silicon rod transferring device move relative to each other along the transferring direction, and two cutting wire saws (the cutting wire saws are arranged vertically) arranged opposite to each other in the silicon rod cutting device perform a second square cutting operation on the silicon rod to be cut carried by the silicon rod transferring device, so that the silicon rod to be cut forms two cutting surfaces and two side skins. In this way, the cross-section of the silicon rod to be cut changes from a circle to a rectangle after the square cutting operation. At this time, the cutting wire saw in the silicon rod cutting device is located between a rear side skin clamp and the silicon rod.

[0319] Next, the side skin clamping reinforcement and the side skin clamp advance and retreat mechanism in the side skin collapse prevention device are utilized, that is, the side skin clamp is driven by the side skin clamp advance and retreat mechanism to retreat in the advance and retreat direction, and the side skin clamped by the side skin clamp through the side skin clamping reinforcement can be retreated in the advance and retreat direction to drive the clamped side skin to separate from the silicon rod body.

[0320] Next, the silicon rod transfer device is driven to carry the silicon rod after the second square cutting operation and retreat away from the cutting position to the loading and unloading position along the transfer direction; the edge skin clamp of the edge skin anti-collapse device is released, and the edge skin is unloaded by using the edge skin unloading conveying mechanism and the edge skin unloading device; the cut silicon rod is clamped and unloaded from the silicon rod transfer device by using the silicon rod loading and unloading device, and subsequently, the new silicon rod to be cut is clamped from the crystal line detection device by using the silicon rod loading and unloading device and transferred to the silicon rod transfer device for square cutting operation.

[0321] When the silicon rod transfer device in the horizontal silicon rod squaring machine includes a transfer channel, a silicon rod clamp, and a transfer drive mechanism, refer to Fig.13 The schematic diagram shows the status of the silicon rod at various stages during the square cutting operation.

[0322] The specific process can be roughly as follows:

[0323] First, a silicon rod to be cut with a circular cross section is placed horizontally on a loading and refining device, and the loading and refining device drives the silicon rod to be cut to rotate to complete the refining operation.

[0324] Next, the silicon rod to be cut is clamped from the loading and finding device by the silicon rod loading and unloading device and transferred to the silicon rod transfer device corresponding to the loading and unloading area of ​​the corresponding processing station. The silicon rod to be cut is clamped by the silicon rod clamp in the silicon rod transfer device. The silicon rod to be cut is placed horizontally and the axis of the silicon rod is consistent with the transfer direction.

[0325] Next, the edge skin clamp is driven by the edge skin clamp advance and retreat mechanism to advance to the silicon rod in the advance and retreat direction, and the edge skin clamp of the edge skin anti-collapse device is driven to clamp the silicon rod to be cut, that is, the silicon rod pressing piece in the edge skin anti-collapse device presses on the silicon rod body and the edge skin pressing piece in the edge skin anti-collapse device presses on the edge skin to be cut. At this time, the cutting wire saw in the silicon rod cutting device is located between the front edge skin clamp and the silicon rod; the silicon rod transfer device is driven to carry the silicon rod from the loading and unloading position to the cutting position along the transfer direction, and the silicon rod cutting device and the silicon rod transfer device are relatively moved along the transfer direction, and the two cutting wire saws (the cutting wire saws are arranged vertically) arranged opposite to each other in the silicon rod cutting device perform the first square cutting operation on the silicon rod to be cut carried by the silicon rod transfer device, so that the silicon rod to be cut forms two cutting surfaces and two edge skins. At this time, the cutting wire saw in the silicon rod cutting device is located between the rear edge skin clamp and the silicon rod.

[0326] Next, the side skin clamping reinforcement and the side skin clamp advance and retreat mechanism in the side skin collapse prevention device are utilized, that is, the side skin clamp is driven by the side skin clamp advance and retreat mechanism to retreat in the advance and retreat direction, and the side skin clamped by the side skin clamp through the side skin clamping reinforcement can be retreated in the advance and retreat direction to drive the clamped side skin to separate from the silicon rod body.

[0327] Next, the silicon rod transfer device is driven to carry the silicon rods after the first square cutting operation and retreat away from the cutting area along the transfer direction to the loading and unloading area; the edge skin clamp of the edge skin collapse prevention device is released, and the edge skin is unloaded using the edge skin unloading conveying mechanism and the edge skin unloading device.

[0328] Next, the silicon rod clamp in the silicon rod transfer device rotates the silicon rod to be cut 90°; the edge skin clamp advance and retreat mechanism drives the edge skin clamp to advance to the silicon rod in the advance and retreat direction, and drives the edge skin clamp of the edge skin collapse prevention device to clamp the silicon rod to be cut, that is, the silicon rod pressing piece in the edge skin collapse prevention device presses on the silicon rod body and the edge skin pressing piece in the edge skin collapse prevention device presses on the edge skin to be cut. At this time, the cutting wire saw in the silicon rod cutting device is located between the front edge skin clamp and the silicon rod; the silicon rod transfer device is driven to carry the silicon rod from the loading and unloading area along the rotating The silicon rod transferring device moves in the transfer direction toward the cutting position, and the silicon rod cutting device and the silicon rod transferring device move relatively along the transfer direction. The two cutting wire saws relatively arranged in the silicon rod cutting device (the cutting wire saws are arranged vertically) perform a second square cutting operation on the silicon rod to be cut carried by the silicon rod transferring device, so that the silicon rod to be cut forms two cutting surfaces and two side skins. In this way, the cross-section of the silicon rod to be cut changes from a circle to a rectangle after the square cutting operation. At this time, the cutting wire saw in the silicon rod cutting device is located between a rear side skin clamp and the silicon rod.

[0329] Next, the side skin clamping reinforcement and the side skin clamp advance and retreat mechanism in the side skin collapse prevention device are utilized, that is, the side skin clamp is driven by the side skin clamp advance and retreat mechanism to retreat in the advance and retreat direction, and the side skin clamped by the side skin clamp through the side skin clamping reinforcement can be retreated in the advance and retreat direction to drive the clamped side skin to separate from the silicon rod body.

[0330] Next, the silicon rod transfer device is driven to carry the silicon rod after the second square cutting operation and retreat away from the cutting position to the loading and unloading position along the transfer direction; the edge skin clamp of the edge skin anti-collapse device is released, and the edge skin is unloaded by using the edge skin unloading conveying mechanism and the edge skin unloading device; the cut silicon rod is clamped and unloaded from the silicon rod transfer device by using the silicon rod loading and unloading device, and subsequently, the new silicon rod to be cut is clamped from the crystal line detection device by using the silicon rod loading and unloading device and transferred to the silicon rod transfer device for square cutting operation.

[0331] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A device for preventing edge collapse, characterized in that: Applied to silicon rod squaring equipment, the edge skin anti-collapse device comprises: Clamping support; The edge skin clamp is arranged on the clamping support; the edge skin clamp comprises a clamping seat, at least one pair of end face clamps arranged opposite to each other along the clamping direction, and a clamp driving mechanism for driving at least one end face clamp of the at least one pair of end face clamps to move along the clamping direction; the end face clamp comprises a silicon rod pressing piece, an edge skin pressing piece, and an edge skin clamping reinforcement piece; and The edge skin clamp advance and retreat mechanism is used to drive the edge skin clamp to advance and retreat along the advance and retreat direction.

2. The device for preventing edge collapse according to claim 1, characterized in that: The end face chuck comprises: a clamping base, a silicon rod pressing piece and a side skin pressing piece arranged on the clamping base, and a side skin clamping reinforcement piece which moves forward and backward along a clamping direction relative to the clamping base.

3. The device for preventing edge collapse according to claim 2, characterized in that: In the end face chuck, the silicon rod pressing part includes a silicon rod pressing screw arranged on the clamping base, the side skin pressing part includes a side skin pressing screw arranged on the clamping base, and the side skin clamping reinforcement includes a telescopic push rod or a telescopic push block that is controlled to advance and retreat relative to the clamping base.

4. The device for preventing edge collapse according to claim 2 or 3, characterized in that: The end face clamp also includes an offset fine-tuning structure for adjusting the position of the clamping base.

5. The device for preventing edge collapse according to claim 4, characterized in that: The deflection fine-tuning structure comprises a hinge structure, and the clamping base is arranged by the hinge structure.

6. The device for preventing edge collapse of the edge skin according to claim 4, characterized in that: The deflection fine-tuning structure comprises a ball head structure, and the clamping base is arranged by the ball head structure.

7. The device for preventing edge collapse according to claim 2, characterized in that: In the end face chuck, the silicon rod pressing part includes a silicon rod pressing elastic part arranged on the clamping base, the side skin pressing part includes a side skin pressing elastic part arranged on the clamping base, and the side skin clamping reinforcement includes a telescopic push rod or a telescopic push block that is controlled to advance and retreat relative to the clamping base.

8. The device for preventing edge collapse according to claim 1, characterized in that: The end face chuck comprises: a first clamping base body provided with a silicon rod pressing piece; a second clamping base body provided with a side skin pressing piece and a side skin clamping reinforcement piece which moves forward and backward along the clamping direction relative to the second clamping base body.

9. The device for preventing edge collapse according to claim 8, characterized in that: In the end face chuck, the silicon rod pressing part includes a silicon rod pressing screw arranged on the first clamping base, the side skin pressing part includes a side skin pressing screw arranged on the second clamping base, and the side skin clamping reinforcement includes a telescopic push rod or a telescopic push block that is controlled to advance and retreat relative to the second clamping base.

10. The device for preventing edge collapse according to claim 8, characterized in that: In the end face chuck, the silicon rod pressing part includes a silicon rod pressing elastic part arranged on the first clamping base, the side skin pressing part includes a side skin pressing elastic part arranged on the second clamping base, and the side skin clamping reinforcement includes a telescopic push rod or a telescopic push block that is controlled to advance and retreat relative to the second clamping base.

11. The device for preventing edge collapse according to claim 1, characterized in that: The chuck driving mechanism comprises: a chuck moving guide rail arranged along the clamping direction; and a chuck driving unit used for driving at least one end face chuck of the at least one pair of end face chucks to move along the chuck moving guide rail.

12. The device for preventing edge collapse according to claim 11, characterized in that: The chuck driving unit includes: at least one chuck telescopic assembly, the chuck telescopic assembly includes: a chuck telescopic rod and a chuck telescopic cylinder, the chuck telescopic rod is arranged along the clamping direction and is associated with a corresponding end face chuck, and the chuck telescopic cylinder is associated with the chuck telescopic rod.

13. The device for preventing edge collapse according to claim 11, characterized in that: The chuck driving unit comprises: At least one pair of clamping racks, arranged along the clamping direction and respectively associated with at least one pair of end face clamps; a clamping gear meshing with the pair of clamping racks; and The gear driving source is associated with the clamping gear and is used to drive the clamping gear to rotate so that at least one pair of meshed clamping racks drives at least one pair of associated end face clamps to move toward or away from each other along the clamping direction.

14. The device for preventing edge collapse according to claim 11, characterized in that: The chuck driving unit comprises: at least one chuck clamping assembly, the chuck clamping assembly comprises: a clamping screw and a screw driving source, the clamping screw is arranged along the clamping direction and is associated with a corresponding end face chuck, and the screw driving source is associated with the clamping screw.

15. The device for preventing edge collapse according to claim 11, characterized in that: The chuck driving unit comprises: A bidirectional screw rod is arranged along the clamping direction and is respectively associated with at least one pair of end face chucks; and A screw drive source is associated with the bidirectional screw and is used to drive the bidirectional screw to rotate so that at least a pair of associated end face clamps move toward or away from each other along a clamping direction.

16. The device for preventing edge collapse according to claim 1, characterized in that: The edge skin clamp advance and retreat mechanism includes: a clamp advance and retreat guide rail, which is arranged along the advance and retreat direction; and an edge skin clamp advance and retreat unit, which is used to drive the edge skin clamp to move along the clamp advance and retreat guide rail.

17. The device for preventing edge collapse according to claim 16, characterized in that: The edge skin clamp advance and retreat unit includes: a clamp seat telescopic rod and a clamp seat telescopic cylinder. The clamp seat telescopic rod is arranged along the advance and retreat direction and is associated with the clamp seat of the edge skin clamp. The clamp seat telescopic cylinder is associated with the clamp seat telescopic rod.

18. The device for preventing edge collapse according to claim 16, characterized in that: The edge skin clamp advance and retreat unit comprises: A clamping seat rack is arranged along the advancing and retreating direction and is associated with the clamping seat of the edge skin clamp; a clamping seat gear meshing with the clamping seat rack; and The gear driving source is associated with the clamping seat gear and is used to drive the clamping seat gear to rotate so that the meshed edge skin clamp moves along the forward and backward directions.

19. The device for preventing edge collapse according to claim 16, characterized in that: The edge skin clamp advance and retreat unit includes: an exit screw and a screw drive source. The exit screw is arranged along the advance and retreat direction and is associated with the clamp seat of the edge skin clamp. The screw drive source is associated with the exit screw.

20. The device for preventing edge collapse according to claim 1, characterized in that: It also includes a clamp lifting mechanism, including: a clamp lifting guide rail, which is arranged in the vertical direction; and a clamp lifting unit, which is used to drive the edge skin clamp to move up and down along the clamp lifting guide rail.

21. The device for preventing edge collapse according to claim 20, characterized in that: The fixture lifting unit comprises: A lifting rack is arranged in the vertical direction and is associated with the clamping seat of the edge skin clamp; a lifting gear meshing with the lifting rack; and The gear driving source is associated with the lifting gear and is used to drive the lifting gear to rotate so that the meshed edge skin clamp moves up and down in the vertical direction.

22. The device for preventing edge collapse according to claim 20, characterized in that: The edge clamp lifting unit comprises: a lifting screw and a screw driving source. The lifting screw is arranged vertically and is associated with the clamping seat of the edge skin clamp. The screw driving source is associated with the lifting screw.

23. The device for preventing edge collapse according to claim 1, characterized in that: It also includes a side skin unloading and conveying mechanism, which is connected with the side skin clamp advance and retreat mechanism.

24. The device for preventing edge collapse according to claim 23, characterized in that: The edge skin unloading and conveying mechanism comprises an edge skin bearing structure and a conveying driving mechanism.

25. The device for preventing edge collapse of the edge skin according to claim 24, characterized in that: The conveying drive mechanism includes a chain conveying mechanism or a transmission belt mechanism.

26. A horizontal silicon rod squaring machine, characterized in that: include: A machine base having a silicon rod processing platform; the silicon rod processing platform is provided with a plurality of processing stations, each of which includes a loading and unloading area and a cutting area; each processing station is provided with a silicon rod transfer device, an edge skin collapse prevention device as described in any one of claims 1 to 25, and a silicon rod cutting device; The silicon rod transfer device is used to carry the silicon rod and transfer it between the loading and unloading area and the cutting area of ​​the processing station along the transfer direction; The silicon rod is placed horizontally on the silicon rod transfer device, and the axis of the silicon rod is consistent with the transfer direction; The silicon rod cutting device is arranged in the cutting area of ​​the processing station, and the silicon rod cutting device includes at least one wire cutting unit, and the wire cutting unit has at least one cutting wire saw, and the at least one cutting wire saw is arranged along the vertical direction or at an angle to the vertical direction; wherein, in the square cutting operation, the edge skin anti-collapse device is used to clamp the silicon rod, and the wire cutting unit and the corresponding silicon rod transfer device are relatively moved along the transfer direction, and the silicon rod carried by the silicon rod transfer device is squared by the at least one cutting wire saw, so that the cross-section of the silicon rod changes from a circular shape to a rectangular shape after the square cutting operation.

27. The horizontal silicon rod squaring machine according to claim 26, characterized in that: The silicon rod transfer device comprises: A transfer channel is provided along the transfer direction; A carrying platform, used for carrying silicon rods; and The transfer drive mechanism is used to drive the carrying platform and the silicon rods carried by the platform to move along the transfer direction on the transfer channel.

28. The horizontal silicon rod squaring machine according to claim 27, characterized in that: The clamping support of the edge skin anti-collapse device is associated with the bearing platform of the silicon rod transfer device.

29. The horizontal silicon rod squaring machine according to claim 27, characterized in that: The carrying platform comprises at least two carrying members spaced apart along the transfer direction.

30. The horizontal silicon rod squaring machine according to claim 29, characterized in that: The bearing member comprises: Load-bearing bracket; A first bearing structure, used for bearing the silicon rod and contacting the arc surface of the silicon rod; and The second supporting structure is used to support the silicon rod and is in contact with the cut surface of the silicon rod.

31. The horizontal silicon rod squaring machine according to claim 30, characterized in that: The bearing member comprises a Y-shaped bearing structure.

32. The horizontal silicon rod squaring machine according to claim 29, characterized in that: The bearing platform comprises a bearing member driving mechanism, and the bearing member driving mechanism comprises: a bearing member moving guide rail arranged along the transfer direction; and a bearing member driving unit, which is used to drive at least one bearing member to move along the bearing member moving guide rail.

33. The horizontal silicon rod squaring machine according to claim 27, characterized in that: The transfer drive mechanism comprises: a platform transfer guide rail arranged along the transfer direction; and a transfer drive unit used for driving the carrying platform to move along the platform transfer guide rail.

34. The horizontal silicon rod squaring machine according to claim 26, characterized in that: The silicon rod transfer device comprises: A transfer channel is provided along the transfer direction; A silicon rod clamp, used for clamping both end surfaces of the silicon rod; and The transfer drive mechanism is used to drive the silicon rod clamp and the silicon rod clamped therein to move along the transfer direction on the transfer channel.

35. The horizontal silicon rod squaring machine according to claim 34, characterized in that: The silicon rod fixture comprises: A clamp arm mounting seat, arranged on the transfer channel; At least one pair of clamping arms, disposed on the clamping arm mounting seat opposite to each other along the transfer direction, for clamping two end surfaces of the silicon rod; and The clamp arm driving mechanism is used to drive at least one clamp arm in at least one pair of clamp arms to move along the transfer direction.

36. The horizontal silicon rod squaring machine according to claim 34, characterized in that: The silicon rod fixture comprises: At least one pair of clamping arms are disposed on the transfer channel opposite to each other along the transfer direction; and The clamp arm driving mechanism is used to drive at least one clamp arm in at least one pair of clamp arms to move along the transfer direction.

37. The horizontal silicon rod squaring machine according to claim 35 or 36, characterized in that: The clamping arm is a rotating structure; the silicon rod clamp also includes a clamping arm rotating mechanism for driving the clamping arm to rotate.

38. The horizontal silicon rod squaring machine according to claim 26, characterized in that: The wire cutting unit in the silicon rod cutting device comprises: a cutting installation structure, a plurality of cutting wheels and a cutting wire arranged on the cutting installation structure, wherein the cutting wire is sequentially wound around the plurality of cutting wheels to form at least one cutting wire saw.

39. The horizontal silicon rod squaring machine according to claim 38, characterized in that: The cutting wire is wound between the cutting wheels in an annular winding manner with the ends connected.

40. The horizontal silicon rod squaring machine according to claim 38, characterized in that: The wire cutting unit includes at least one transition wheel and a tension adjustment mechanism associated with the at least one transition wheel.

41. The horizontal silicon rod squaring machine according to claim 38, characterized in that: The silicon rod cutting device comprises: At least one distance adjustment mechanism is provided on the at least one linear cutting unit and is used to drive the cutting wheel in the linear cutting unit to move in a direction perpendicular to the wheel surface of the cutting wheel.

42. The horizontal silicon rod squaring machine according to claim 26, characterized in that: Also includes: The silicon rod loading and unloading device is used to load the silicon rods to be cut onto the loading and unloading area of ​​the corresponding processing station and to unload the cut silicon rods from the loading and unloading area of ​​the corresponding processing station.

43. The horizontal silicon rod squaring machine according to claim 42, characterized in that: The silicon rod loading and unloading device comprises: A silicon rod mounting frame is arranged across the machine base along the transposition direction; A silicon rod clamp, used for clamping two end surfaces of the silicon rod; and The fixture transposition mechanism is used to drive the silicon rod fixture to move on the silicon rod mounting frame along the transposition direction.

44. The horizontal silicon rod squaring machine according to claim 43, characterized in that: The silicon rod fixture comprises: a clamp mounting bracket; and The silicon rod clamp is arranged on the clamp mounting frame.

45. The horizontal silicon rod squaring machine according to claim 44, characterized in that: The silicon rod clamping member comprises: A clamp arm mounting seat, arranged on the clamp mounting frame; At least one pair of clamping arms are disposed on the clamping arm mounting seat opposite to each other along the transfer direction; and The clamping arm driving mechanism is used to drive at least one clamping arm of the at least one pair of clamping arms to move along the transfer direction to adjust the clamping distance between the at least one pair of clamping arms.

46. ​​The horizontal silicon rod squaring machine according to claim 45, characterized in that: The at least one pair of clamp arms includes a rotating structure; the silicon rod clamp also includes a clamp arm rotating mechanism, which is arranged on at least one clamp arm of the at least one pair of clamp arms and is used to drive the clamping portion of the at least one clamp arm to rotate.

47. The horizontal silicon rod squaring machine according to claim 44, characterized in that: In the silicon rod clamp, the silicon rod clamping piece is lifted and lowered relative to the clamp mounting frame by a clamp lifting mechanism.

48. The horizontal silicon rod squaring machine according to claim 43, characterized in that: The fixture transposition mechanism comprises: A fixture transposition guide rail is provided on the silicon rod mounting frame along a transposition direction; the transposition direction is perpendicular to the transfer direction and forms a horizontal plane; and A fixture transposition drive unit is associated with the silicon rod fixture and is used to drive the associated silicon rod fixture to move along the fixture transposition guide rail to transpose between multiple processing stations.

49. The horizontal silicon rod squaring machine according to claim 43, characterized in that: The silicon rod loading and unloading device also includes a centering adjustment mechanism for adjusting the position of the silicon rod to be cut so that the axis center line of the silicon rod to be cut corresponds to the predetermined center line.

50. The horizontal silicon rod squaring machine according to claim 26, characterized in that: Also included is a side skin unloading device, including: A side skin mounting frame is arranged across the machine base along the transposition direction; A skin edge adsorption member, used for adsorbing the skin edge; and The adsorption member shifting mechanism is used to drive the adsorption member to move on the edge skin mounting frame along the shifting direction.

51. The horizontal silicon rod squaring machine according to claim 50, characterized in that: The edge skin adsorption piece is lifted and lowered relative to the edge skin mounting frame by an adsorption piece lifting mechanism.

52. The horizontal silicon rod squaring machine according to claim 50, characterized in that: The adsorption member transposition mechanism comprises: An adsorption member transposition guide rail is provided on the side skin mounting frame along a transposition direction; the transposition direction is perpendicular to the transfer direction and forms a horizontal plane; and The adsorption member transposition driving unit is associated with the edge skin adsorption member and is used for driving the associated edge skin adsorption member to move along the adsorption member transposition guide rail.

53. The horizontal silicon rod squaring machine according to claim 26, characterized in that: It also includes a crystal line detection device, the crystal line detection device comprising: at least two support structures arranged at a distance from each other, wherein the support structures have a support roller set arranged along the transfer direction and used for supporting the silicon rods to be cut; and The roller driving source is used to drive each supporting roller in the supporting roller group to rotate so as to drive the silicon rod to be cut to rotate.

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