Silicon rod cutting system

Abstract

This application provides a silicon rod cutting system, including: an edge skin clamping mechanism; an edge skin collection mechanism with a collection area; the same collection area is used to collect edge skin generated from cutting the same silicon rod; a cutting device, the cutting device including a silicon rod chuck mechanism; the silicon rod chuck mechanism includes: a chuck frame; an upper floating head; the chuck frame is capable of moving up and down and the upper floating head is used to press against the upper end face of a vertically placed silicon rod; an edge skin support bracket, connected to the chuck frame and capable of extending downward and resetting upward, the edge skin support bracket is used to extend downward and support the outer peripheral surface of the silicon rod, and the edge skin support bracket is also used to reset upward away from the outer peripheral surface of the silicon rod; the edge skin support bracket includes: an edge skin support bracket mounting member, fixed to the chuck frame; a support rod fixing member and an edge skin support rod, the edge skin support rod is fixed to the side of the support rod fixing member away from the upper floating head and extends downward; an edge skin drive device, used to drive the support rod fixing member and the edge skin support rod to extend downward and reset upward.

Description

[0001] This application is a divisional application of application number 2021112841718. Technical Field

[0002] This application relates to the field of silicon rod cutting technology, and more specifically, to a silicon rod cutting system. Background Technology

[0003] Currently, with increasing societal emphasis on and openness to the use of green and renewable energy, the photovoltaic solar power generation field is receiving more and more attention and development. In the photovoltaic power generation field, typical crystalline silicon solar cells are manufactured on high-quality silicon wafers, which are cut from pulled or cast silicon rods using a wire saw technique.

[0004] Wire EDM is currently one of the most advanced squaring machining technologies in the world. Its principle is to use a high-speed moving diamond wire to rub against the workpiece (e.g., silicon rods, sapphire, or other hard and brittle semiconductor materials), cutting out a square rod to achieve the cutting purpose. Compared with traditional saw blades, grinding wheels, and internal circular cutting, wire EDM technology has advantages such as high efficiency, high throughput, and high precision.

[0005] The existing edge unloading devices of silicon rod cutting systems can no longer meet the requirements of the photovoltaic industry for silicon wafers.

[0006] The information disclosed in the background section is only intended to enhance the understanding of the background of this application, and therefore may contain information that is not part of the prior art known to those skilled in the art. Summary of the Invention

[0007] This application provides a novel silicon rod cutting system.

[0008] According to a first aspect of the embodiments of this application, a silicon rod cutting system is provided, comprising:

[0009] Edge clamping mechanism;

[0010] An edge skin collection mechanism, wherein the edge skin collection mechanism has a collection area, and the collection area corresponds one-to-one with the cutting station of the silicon rod cutting system;

[0011] The edge-gripping mechanism is used to clamp the edge skin generated by the silicon rod being cut from each cutting station of the silicon rod cutting system; the same collection area is used to collect the edge skin generated by cutting the same silicon rod.

[0012] The cutting device includes a silicon rod chuck mechanism;

[0013] The silicon rod chuck mechanism includes:

[0014] Chuck holder;

[0015] An upper floating head is installed at the chuck frame; the chuck frame is capable of moving up and down, and the upper floating head is used to press against the upper end face of the vertically placed silicon rod;

[0016] The edge support bracket is connected to the clamp frame and can extend downward and return upward. The edge support bracket is used to extend downward and support the outer peripheral surface of the silicon rod. The edge support bracket is also used to return upward and leave the outer peripheral surface of the silicon rod.

[0017] The edge-supporting skin bracket includes:

[0018] The side support bracket is fixed to the clamp frame;

[0019] The handrail fixing component and the side handrail, wherein the side handrail is fixed to the side of the handrail fixing component away from the upper floating head and extends downward;

[0020] The edge support driving device is connected to the edge support bracket and the handrail fixing component, respectively, and is used to drive the handrail fixing component and the edge support handrail to extend downward and return upward.

[0021] The embodiments of this application, by adopting the above technical solutions, have the following technical effects:

[0022] The floating head is used to press against the upper surface of the vertically placed silicon rod, achieving vertical clamping of the silicon rod. During the cutting process, the floating head itself can tilt at a preset angle to reduce or offset the stress generated by cutting. To prevent the edge skin formed after cutting the silicon rod from tipping over, an edge skin support bracket is provided. The edge skin support bracket is connected to the chuck frame and can extend downward and return to its original position upward. Thus, after the cutting section is placed on the upper end face of the silicon rod, the edge skin support bracket extends downward and supports the outer circumference of the silicon rod, so that when the silicon rod is cut into a square rod and edge skin by the cutting section, the edge skin support bracket supports the edge skin on the upper outer side, preventing the edge skin from tipping over. When it is necessary to remove the edge skin, the edge skin support bracket returns to its original position upward, no longer contacting the edge skin, allowing the edge skin to be removed. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cutting process of the silicon rod cutting system according to an embodiment of this application;

[0024] Figure 1A This is a schematic diagram of a silicon rod cutting system according to an embodiment of this application;

[0025] Figure 1B and Figure 1C for Figure 1A The diagram shows a transfer device in a silicon rod cutting system that transfers a round silicon rod from the loading / unloading device to the cutting device.

[0026] Figure 2A This is a schematic diagram of the loading and unloading device of the silicon rod cutting system according to an embodiment of this application;

[0027] Figure 2B for Figure 2A A diagram from another angle;

[0028] Figure 2C yes Figure 2B A magnified view of a portion of the image;

[0029] Figure 3A , Figure 3B and Figure 3C This is a schematic diagram of the transfer device of the silicon rod cutting system according to an embodiment of this application;

[0030] Figure 3D and Figure 3E for Figure 3A A schematic diagram of the upper gripper assembly and the lower gripper assembly of the transfer device;

[0031] Figure 3F This is a schematic diagram of the four crystal wires of a silicon rod at the endpoints of the crystal wires on the end face of the silicon rod.

[0032] Figure 4A This is a schematic diagram of the cutting head mechanism of the silicon rod cutting system cutting device according to an embodiment of this application;

[0033] Figure 4B This is a schematic diagram showing the two cutting head mechanisms of the same cutting device in the silicon rod cutting system of this application completing the cutting of the silicon rod from top to bottom;

[0034] Figure 4C and Figure 4D To be Figure 4B A schematic diagram showing the removal of the two edge pieces formed by a single cut from the through hole in the machine head;

[0035] Figure 4E for Figure 4A A schematic diagram of the tension wheel assembly of the cutting head mechanism shown;

[0036] Figure 4F for Figure 1A A schematic diagram of the support frame, transverse feed mechanism, and vertical feed mechanism of the cutting device shown.

[0037] Figure 4G for Figure 1A A schematic diagram of the silicon rod chuck mechanism and silicon rod support mechanism of the silicon rod cutting system shown in the figure, in which the silicon rod is clamped.

[0038] Figure 4H for Figure 4G A schematic diagram of the silicon rod support mechanism shown;

[0039] Figure 5This is a schematic diagram showing the cooperation of the base, two cutting devices, and edge unloading device of the silicon rod cutting system according to an embodiment of this application;

[0040] Figure 5A This is a schematic diagram of the edge clamping frame of the edge unloading device of the silicon rod cutting system according to an embodiment of this application;

[0041] Figure 5B for Figure 5A The diagram shows the relative position of the edge skin clamping frame (with a cover plate) before clamping the edge skin;

[0042] Figure 5C for Figure 5A The diagram shows the edge skin clamping frame and the clamping frame moving components working together to form an edge skin clamping mechanism;

[0043] Figure 5D for Figure 5A The diagram shows the interaction between the edge clamping frame and the cutting device of the silicon rod cutting system;

[0044] Figure 5E This is a schematic diagram of the edge collecting mechanism of the edge unloading device of the silicon rod cutting system according to an embodiment of this application, which collects the edge. Detailed Implementation

[0045] The exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0046] The silicon rod cutting system of this application embodiment is used to vertically cut a vertically placed circular silicon rod. The process of cutting the silicon rod is as follows: Figure 1 As shown, a circular silicon rod is cut twice to form a square rod with four edges. A vertically placed circular silicon rod is also called a vertical circular silicon rod.

[0047] like Figure 1A , Figure 1B and Figure 1C As shown, the silicon rod cutting system of this application embodiment includes:

[0048] Machine base 1, the machine base 1 having two parallel and spaced-apart cutting stations;

[0049] Two cutting devices 4 are fixed on the base 1, and the two cutting devices 4 correspond one-to-one with the two cutting stations; wherein, the cutting device 4 has a diamond wire, and the part of the diamond wire used to cut the silicon rod during movement is a cutting segment, the cutting segment is a horizontally arranged cutting segment, and the cutting segment is used to cut the silicon rod placed vertically at the cutting station from top to bottom.

[0050] The loading and unloading device 2 is fixed to the machine base 1; wherein, the loading and unloading device 2 is used for loading round silicon rods and unloading square rods formed by cutting.

[0051] A transfer device 3 is installed on the base 1 and located between the two cutting stations; wherein, the transfer device 3 is used to transfer the silicon rods loaded by the loading and unloading device 2 to the two cutting stations, and to transfer the square bars formed on the two cutting stations to the loading and unloading device 2. That is, the transfer device is used to realize the transfer of silicon rods and square bars between the loading and unloading device 2 and the cutting device 4.

[0052] In this system, the height direction of the silicon rod cutting system is the Z-direction, meaning the Z-direction is vertical. The orientation of the two cutting stations is the X-direction, and the Y-direction is perpendicular to both the X and Z directions. Two independent cutting stations are spaced parallel to each other on the machine base, each corresponding to a cutting device. The two cutting stations share a single set of loading / unloading device 2, transfer device 3, and edge unloading device 5. Because the two cutting stations share one loading / unloading device and one transfer device, the silicon rod cutting system has fewer components and occupies less space.

[0053] During implementation, such as Figure 1A , Figure 1B and Figure 1C As shown, the silicon rod cutting system also includes an edge unloading device 5, which is used to clamp, transfer and collect the edge formed by cutting the silicon rod.

[0054] In implementation, the edge unloading device 5 includes:

[0055] Edge clamping mechanism;

[0056] Edge skin collection mechanism 53, the edge skin collection mechanism 53 has a collection area, the collection area corresponds one-to-one with the cutting station;

[0057] The edge skin clamping mechanism is used to clamp the edge skin formed by cutting the silicon rod at the cutting station and transport the edge skin to the edge skin collection mechanism, and the edge skin formed by cutting the same silicon rod is placed in the same collection area.

[0058] The two cutting stations share a single edge clamping mechanism, and the edge pieces cut at both stations are transported to the same edge collection mechanism. This shared edge clamping and collection mechanism in the silicon rod cutting system reduces the number of components and the space required for the system.

[0059] During implementation, such as Figure 1A , Figure 1B , Figure 1C , Figure 4A , Figure 4B , Figure 4C and Figure 4D As shown, each of the cutting devices has two cutting head mechanisms 41 arranged opposite to each other. Each cutting head mechanism 41 has a diamond wire and a vertical head through hole 411-1. The cutting section of the diamond wire and the head through hole 411-1 are staggered so that they do not interfere with each other. The cutting section is the part of the diamond wire used to cut the silicon rod during movement.

[0060] The edge skin clamping mechanism is specifically used to clamp the edge skin by entering between the two cutting head mechanisms 41 through the machine head through hole, and to remove the edge skin from between the two cutting head mechanisms 41 by exiting from the machine head through hole 411-1.

[0061] The components of the silicon rod cutting system are described below.

[0062] The first component: the structure of the base of the silicon rod cutting system

[0063] The base of the silicon rod cutting system is a fundamental support component, possessing high rigidity and stability. In a factory layout, the base of the silicon rod cutting system can be connected to the bases of other systems to form a complete production line.

[0064] The second component: the structure of the loading and unloading device of the silicon rod cutting system.

[0065] During implementation, such as Figure 1A , Figure 2A , Figure 2B and Figure 2C As shown, the loading and unloading device 2 of the silicon rod cutting system includes a round rod loading assembly, which includes:

[0066] L-shaped bar feeder 211;

[0067] The loading and unloading device also includes:

[0068] The loading and unloading support frame 23 is rotatably connected to the round bar loading rack 211;

[0069] The loading and turning drive device is fixed to the bottom of the loading and unloading support frame and the outer bottom of the round bar loading rack, respectively. The loading and turning drive device is used to drive the round bar loading rack to rotate 90 degrees from its initial position.

[0070] The feeding processing unit is used to control the feeding and flipping drive device to control the round bar feeding rack to first accelerate the flipping, and when the round bar feeding rack flips to a preset angle, reduce the flipping speed of the round bar feeding rack until it flips to 90 degrees.

[0071] Specifically, the preset angle ranges from 60 degrees to 85 degrees.

[0072] In practice, the feeding and tilting drive device adopts a feeding and tilting hydraulic cylinder 216;

[0073] The cylinder body of the loading and unloading support frame is fixed at the bottom of the loading and unloading support frame. The upper end of the guide rod of the loading and unloading support frame 216 is fixed to the outer bottom of the round bar loading frame 211. The loading and unloading support frame 216 is used to drive the round bar loading frame 211 to rotate 90 degrees from the initial position of the round bar loading frame.

[0074] The feeding processing unit is specifically used to reduce the extension speed of the feeding and turning cylinder 216 when the round bar feeding rack 211 is turned to a preset angle, thereby reducing the turning speed of the round bar feeding rack 211.

[0075] During implementation, such as Figure 2A and Figure 2B As shown, the loading and unloading device further includes:

[0076] The deceleration proximity switch 217 is connected to the feeding processing unit and fixed to the position where the long arm of the round bar feeding frame flips to a preset angle.

[0077] Specifically, the feeding processing unit is used to adjust the oil inlet flow of the feeding tilting cylinder to reduce the tilting speed after receiving the position signal of the deceleration proximity switch, until it tilts to 90 degrees.

[0078] The combination of the deceleration proximity switch and the feeding unit, through a simple structure, reduces the rotation speed of the round bar feeding rack when it rotates to nearly 90 degrees, i.e. when the silicon bar rotates to nearly 90 degrees. This results in a lower speed when the silicon bar rotates to 90 degrees, reducing the impact on the silicon bar and protecting it.

[0079] During implementation, such as Figure 2A and Figure 2B As shown, the inner side of the short arm of the round bar feeding rack 211 is the length measurement reference surface 211-1;

[0080] The round bar feeding assembly also includes:

[0081] The round bar support mechanism 212 is fixed to the inner side of the long arm of the round bar feeder 211 and is used to support the horizontally placed round silicon bars when the long arm of the round bar feeder 211 is placed horizontally.

[0082] The round bar clamping block 213 and the round bar clamping drive device are respectively fixed to the round bar support mechanism and the round bar clamping block; wherein, the round bar clamping block 213 is used to push the round silicon rod located on the round bar support mechanism to the length measuring reference surface 211-1 and clamp it in place under the drive of the round bar clamping drive device.

[0083] The clamping block displacement measuring device 215 is fixed to the round bar feeding rack 211 and is used to measure the displacement of the round bar clamping block 213;

[0084] The feeding unit is also used to obtain the length of the circular silicon rod based on the distance between the initial position of the circular rod clamping block and the length measurement reference surface and the displacement of the circular rod clamping block; wherein, the initial position of the circular rod clamping block is the position of the circular rod clamping block when the circular rod clamping drive device extends to its maximum length.

[0085] When loading round silicon ingots, the L-shaped ingot loading rack is first placed horizontally with its long arm positioned horizontally. Then, the round silicon ingot is placed horizontally on the ingot support mechanism for material presence detection. For subsequent ingot transfer and cutting, the length of the ingot needs to be measured. The distance between the length measurement reference plane and the initial position of the ingot clamping block is fixed. When the material presence detection indicates the ingot is present, the ingot clamping block, driven by the ingot clamping cylinder, moves from its initial position to pushing one end of the silicon ingot until it abuts against the length side beam reference plane. The clamping block displacement measuring device measures the displacement of the ingot clamping block, and the ingot processing unit then calculates the length of the round silicon ingot.

[0086] Specifically, material presence detection is performed using a photoelectric switch in the loading and unloading device.

[0087] In practice, the round bar clamping drive device adopts a round bar clamping cylinder 214. The cylinder body of the round bar clamping cylinder 214 is fixed to the round bar feeding rack 211, and the round bar clamping block 213 is fixed to the upper end of the guide rod of the round bar clamping cylinder 214.

[0088] The round bar clamping block 213 is used to push the circular silicon rod located on the round bar support mechanism to the length measuring reference surface 211-1 and clamp it in place under the drive of the round bar clamping cylinder 214; the initial position of the round bar clamping block is the position of the round bar clamping block when the guide rod of the round bar clamping cylinder is extended to its maximum length.

[0089] In practice, the feeding unit is specifically used to obtain the length L of the circular silicon rod according to the following formula:

[0090] L = KS;

[0091] Wherein, K is the distance between the initial position of the round bar clamping block and the length measurement reference surface, and S is the displacement of the round bar clamping block.

[0092] This allows for a quick and convenient determination of the silicon rod's length.

[0093] In practice, the clamping block displacement measuring device is a tension encoder.

[0094] As a clamping block displacement measuring device, the tension encoder has a compact structure, is easy to install, and can be used in conjunction with the feeding unit to easily measure the length of a circular silicon rod with high accuracy.

[0095] Specifically, such as Figure 2A As shown, the loading and unloading device also includes:

[0096] Two square bar feeding components 22;

[0097] There are two round bar feeding components, and the two round bar feeding components and the two square bar unloading components are arranged in parallel.

[0098] The process for feeding round silicon rods is as follows:

[0099] ① The long arm of the round bar feeding rack is placed horizontally on the loading and unloading support frame, and the silicon rod is fed onto the round bar support mechanism;

[0100] ② The photoelectric switch fixed at the round bar loading rack detects and sends a material signal. Then, the round bar clamping cylinder is ventilated. When the round bar clamping cylinder moves, it drives the round bar clamping block to rotate and pop out. Then, the round bar clamping cylinder continues to drive the round bar clamping block to move, pushing the silicon bar from one end face until the other end face of the silicon bar is pressed against the round bar clamping cylinder and clamped and fixed.

[0101] ③ The feeding and tilting cylinder pushes the outer bottom of the round bar feeding frame to make it rotate around the axis. When it is tilted to the position of the deceleration proximity switch, the deceleration proximity switch detects that it is in place. The feeding processing unit adjusts the oil inlet flow of the feeding and tilting cylinder to reduce the tilting speed until it is tilted to 90°.

[0102] The blanking process for square bars is as follows:

[0103] ① First, stand the square bar cutting assembly upright and place the cut square bars vertically into the square bar cutting assembly;

[0104] ② The feeding and tilting cylinder of the square bar feeding assembly retracts and tilts until it reaches a horizontal position.

[0105] The third component: the structure of the transfer device of the silicon rod cutting system.

[0106] like Figure 1A , Figure 1B , Figure 1C , Figure 3A , Figure 3B and Figure 3C As shown, the transfer device 3 of the silicon rod cutting system includes:

[0107] 31; Loading and unloading clamping frame;

[0108] The upper gripper assembly and the lower gripper assembly are installed parallel to each other on the same side of the loading and unloading gripper frame 31 with an upper and lower gap;

[0109] The transfer drive assembly is used to drive the upper gripper assembly to move vertically relative to the lower gripper assembly, and also to drive the upper and lower gripper assemblies to move vertically and synchronously. The vertical movement of the upper and lower gripper assemblies is in the vertical direction, i.e., the Z-direction of the silicon rod cutting system.

[0110] Specifically, the transfer drive assembly includes an upper gripper transfer drive device, which is fixed to the lower gripper assembly and the upper gripper assembly respectively and drives the upper gripper assembly to move up and down relative to the lower gripper assembly.

[0111] The lower gripper transfer drive device is fixed to the loading / unloading gripper frame and the lower gripper assembly, and drives the lower gripper assembly, the upper gripper assembly and the upper gripper transfer drive device to move up and down synchronously.

[0112] The transfer drive component achieves two functions: firstly, the upper gripper assembly can move upwards independently, increasing the distance between it and the lower gripper assembly; secondly, it can move downwards independently, resetting or decreasing the distance between them. Thus, when the silicon rod or bar is short, the distance between the upper and lower gripper assemblies may not need adjustment, requiring only the lower gripper assembly for clamping. When the silicon rod or bar is long, the distance between the upper and lower gripper assemblies can remain constant, with both assemblies clamping simultaneously. Thirdly, for particularly long silicon rods or bars, the distance between the upper and lower gripper assemblies can be increased to ensure stable clamping during transfer. Secondly, when the transfer device clamps the silicon rod or square bar and needs to lift it for rotation, the distance between the upper jaw assembly and the lower jaw assembly remains unchanged, and they move upward synchronously to lift the clamped silicon rod or square bar for transfer. After the silicon rod or square bar is transferred to the correct position, the distance between the upper jaw assembly and the lower jaw assembly remains unchanged, and they move downward synchronously to lower the clamped square bar.

[0113] During implementation, such as Figure 3C As shown, the transfer drive component includes:

[0114] The transfer pneumatic-hydraulic cylinder 321 has its cylinder body fixed to the bottom of the loading and unloading gripper frame 31, and the upper end of the guide rod of the transfer pneumatic-hydraulic cylinder 321 is fixed to the lower gripper assembly.

[0115] A gas-liquid converter 322 is connected to the transfer gas-liquid cylinder 321; wherein, the gas entering the gas-liquid converter 322 forces the hydraulic oil into the transfer gas-liquid cylinder 321, driving the guide rod of the transfer gas-liquid cylinder 321 to lift the lower gripper assembly; that is, the upper gripper transfer drive device includes the transfer gas-liquid cylinder 321 and the gas-liquid converter 322.

[0116] The transfer cylinder 323 has its cylinder body fixed to the lower gripper assembly, and its guide rod upper end fixed to the upper gripper assembly. Gas from the air source enters the transfer cylinder 323, which drives the guide rod of the transfer cylinder 323 to lift the upper gripper assembly. That is, the lower gripper transfer drive device includes the transfer cylinder 323.

[0117] The combination of the transfer pneumatic-liquid cylinder and the transfer cylinder results in a smaller structure for the transfer drive component, which in turn makes the overall structure of the transfer device smaller.

[0118] Specifically, when a shorter silicon rod is clamped, the transfer cylinder retracts and the transfer pneumatic-hydraulic cylinder extends; when a shorter silicon rod is clamped, both the transfer cylinder and the transfer pneumatic-hydraulic cylinder extend simultaneously.

[0119] For example, when the length of the silicon rod is greater than or equal to 150mm and less than or equal to 400mm, only the lower gripper assembly clamps the round silicon rod before cutting or the square rod after cutting, and then the transfer pneumatic-hydraulic cylinder lifts the silicon rod or square rod for transfer.

[0120] When the length of the silicon rod is greater than 400mm and less than or equal to 850mm, the distance between the upper and lower clamping jaw assemblies remains unchanged, and they work together to clamp the round silicon rod before cutting or the square rod after cutting.

[0121] When the length of the silicon rod is greater than 850mm, the upper jaw assembly and the lower jaw assembly work together to clamp the round silicon rod before cutting or the square rod after cutting. The upper jaw assembly can move up and down in the vertical direction of the loading and unloading jaw frame due to the action of the transfer cylinder, so as to clamp the round silicon rod before cutting or the square rod after cutting of different lengths.

[0122] During implementation, such as Figure 3A , Figure 3D and Figure 3E As shown, the upper gripper assembly and the lower gripper assembly each include:

[0123] Transfer gripper fixing plate 331;

[0124] The left gripper 332-1 and the right gripper 332-2 are fixed to the front side of the transfer gripper fixing plate 331 and are arranged opposite to each other. The left gripper 332-1 and the right gripper 332-2 can move closer and further apart to achieve clamping and releasing. The side of the transfer gripper fixing plate that fixes the left gripper and the right gripper is the front side of the transfer gripper fixing plate.

[0125] The silicon rod detection assembly is fixed to the front side of the transfer jaw fixing plate 331, and the silicon rod detection probe 333 of the silicon rod detection assembly is located between the left jaw 332-1 and the right jaw 332-2;

[0126] The transfer device further includes a silicon rod detection and processing unit, connected to the silicon rod detection assembly 333; wherein:

[0127] The silicon rod detection assembly is used to maintain a gap between the left gripper 332-1 and the right gripper 332-2 and the silicon rod, i.e., not to clamp the silicon rod, and the bottom of the silicon rod is placed on the silicon rod support mechanism for rotation. The silicon rod detection probe 333-1 of the silicon rod detection assembly is kept pressed against the outer peripheral surface of the silicon rod.

[0128] The silicon rod detection processing unit is used to obtain the position of the crystal wire of the silicon rod based on the signal of the silicon rod detection probe of the silicon rod detection assembly, and to determine whether the silicon rod meets the preset silicon rod standard.

[0129] In practice, the silicon rod detection and processing unit is specifically used for:

[0130] If the number of crystal wires in a silicon rod is less than 4 or greater than 4, the silicon rod is deemed not to meet the preset silicon rod standard.

[0131] When the number of silicon rods is four, Figure 3F As shown, the four crystal lines of the silicon rod 6 are located at the crystal line endpoints 61 on the end face of the silicon rod, and the line connecting every two adjacent crystal line endpoints 61 forms four cutting straight lines.

[0132] When the four included angles α formed by the four cutting lines are all greater than or equal to 85 degrees and less than or equal to 95 degrees, the silicon rod is judged to meet the preset silicon rod standard and can be cut subsequently.

[0133] If any of the four included angles formed by the four cutting lines is less than 85 degrees or greater than 95 degrees, the silicon rod is determined not to meet the preset silicon rod standard, meaning the crystal lines of the silicon rod are too inclined. Even after cutting, a square rod cannot be obtained, and further cutting will not be performed.

[0134] In this way, the silicon rod detection component and the silicon rod detection and processing unit work together to determine whether the silicon rod meets the preset silicon rod standard, avoiding the need to cut silicon rods that do not meet the preset standard, thus improving efficiency and reducing time waste.

[0135] The silicon rod detection and processing unit is also used for:

[0136] Determine the actual eccentricity of the silicon rod placed on the silicon rod support mechanism relative to the center of the silicon rod support mechanism. If the actual eccentricity exceeds the preset allowable eccentricity range, the position of the silicon rod needs to be adjusted.

[0137] The actual tilt of the silicon rod placed on the silicon rod support mechanism is determined. If the actual tilt exceeds the preset allowable tilt range, manual judgment is required. If the manual judgment confirms that the actual tilt exceeds the preset allowable tilt range, cutting is not performed.

[0138] The above-mentioned processing steps of the silicon rod detection unit all need to be based on the signals from the silicon rod detection component.

[0139] During implementation, such as Figure 3A , Figure 3B and Figure 3C As shown, the transfer device also includes:

[0140] Two vertical guide rails 341 are arranged vertically and parallel to each other on one side of the transfer gripper fixing plate 331;

[0141] Two transfer gripper sliders are fixed to the back side of the transfer gripper fixing plate 331, and the transfer gripper sliders are slidably connected to the vertical guide rail 341;

[0142] The upper end of the guide rod of the transfer gas-liquid cylinder 321 is fixed to the transfer jaw fixing plate of the lower jaw assembly, and the upper end of the guide rod of the transfer cylinder 323 is fixed to the transfer jaw fixing plate of the upper jaw assembly.

[0143] The transfer pneumatic-hydraulic cylinder can drive the lower gripper assembly to move up and down relative to the loading and unloading gripper frame in the height direction of the loading and unloading gripper frame. The transfer cylinder can drive the upper gripper assembly to move up and down relative to the lower gripper assembly in the vertical direction.

[0144] In practice, the upper gripper assembly and the lower gripper assembly each further include:

[0145] A gripper synchronous reverse motion assembly is provided, wherein the left gripper and the right gripper are mounted to the transfer gripper fixing plate via the gripper synchronous reverse motion assembly;

[0146] The gripper synchronous reverse motion assembly is used to drive the left gripper and the right gripper to move synchronously in opposite directions to move closer to and further away from each other.

[0147] This allows for convenient simultaneous clamping and releasing of the silicon rod by both the left and right grippers.

[0148] Specifically, such as Figure 3D and Figure 3E As shown, the gripper synchronous reverse motion assembly includes:

[0149] The transfer gripper cylinder 351 is fixed to the transfer gripper fixing plate 331.

[0150] Two connecting plates 352, the upper end of the guide rod of the transfer gripper cylinder 351 is fixed to one of the connecting plates;

[0151] Two racks 353 and two connecting plates 352 are respectively fixed on opposite sides of the racks 353;

[0152] Synchronizing gear 354 meshes with two racks 353.

[0153] This allows for convenient simultaneous clamping of silicon rods or square bars by both the left and right grippers.

[0154] In practice, the transfer device also includes:

[0155] The transfer and rotation mechanism is fixed on the loading and unloading clamping jaw frame. The transfer and rotation mechanism is installed on the base of the silicon rod cutting system and moves between the two cutting stations of the silicon rod cutting system.

[0156] The transfer and rotation mechanism is used to drive the loading and unloading gripper frame to rotate, and is also used to move along the transverse direction of the silicon rod cutting system between the two cutting stations of the silicon rod cutting system, and to move in the Y direction of the silicon rod cutting system. The Y direction of the silicon rod cutting system is consistent with the front and rear directions of the loading and unloading device of the transfer device approaching and moving away from the silicon rod cutting system.

[0157] The transfer and rotation mechanism can drive the loading and unloading gripper frame to rotate and move between the two cutting stations of the silicon rod cutting system. It can also move the loading and unloading gripper frame closer to and away from the loading and unloading device. This allows for two processes: transferring the silicon rod to the cutting station and transferring the cut square rod from the cutting station. The process of transferring the silicon rod to the cutting station specifically includes:

[0158] Orient the upper and lower gripper assemblies toward the loading and unloading device and approach the silicon rod vertically supported by the loading and unloading device to clamp the silicon rod and lift it up.

[0159] Retract and rotate so that the silicon rod faces one of the cutting stations;

[0160] Approaching one of the cutting stations in the X direction of the silicon rod cutting system, lower the silicon rod and release it from the clamp; this completes the transfer of one silicon rod.

[0161] The process of transferring the cut square bars from the cutting station specifically includes:

[0162] The upper and lower gripper assemblies are rotated to one of the cutting stations to clamp the cut square bar and lift it up.

[0163] Approaching the loading and unloading device in the X direction of the silicon rod cutting system, and turning towards the square rod unloading component of the loading and unloading device, the square rod is placed on the square rod unloading component to complete the transfer of one square rod, and the subsequent unloading is completed by the square rod unloading component.

[0164] Specifically, such as Figure 3A As shown, the transfer and rotation mechanism mainly consists of a transfer motor, a transfer harmonic reducer, and a rotary base 361. The rotary base 361 also houses the flexible wheel of the harmonic reducer, while the steel wheel of the harmonic reducer is mounted on the loading and unloading gripper frame. Thus, the transfer motor, through the transfer harmonic reducer, enables the loading and unloading gripper frame to rotate stably on the rotary base. Because the transfer harmonic reducer eliminates backlash, the transfer and loading accuracy of the silicon rods is greatly improved. A rotary cable chain is also installed on the rotary base for routing cables and tubing during rotation. The transfer harmonic reducer significantly improves the transfer accuracy of the silicon rods.

[0165] The fourth component: the structure of the cutting device of the silicon rod cutting system and the structure of the cutting head mechanism 41.

[0166] like Figure 1A , Figure 1B and Figure 1C As shown, the silicon rod cutting system has two cutting stations, each corresponding to a cutting device 4. In one cutting process, the two horizontally arranged parallel cutting segments of the cutting device cut the silicon rod from top to bottom to form two edge skins.

[0167] To facilitate the removal of the edge material after cutting, the cutting head mechanism of the cutting device was structurally improved. For example... Figure 4A , Figure 4B , Figure 4C and Figure 4D As shown, the cutting device of the silicon rod cutting system includes a cutting head mechanism 41, wherein the cutting head mechanism is used to form a horizontally arranged cutting segment to cut the vertically placed silicon rod.

[0168] The cutting head mechanism 41 includes a wire saw assembly; the wire saw assembly includes:

[0169] A wire saw mounting bracket 411, wherein the wire saw mounting bracket 411 has a vertical head through hole 411-1;

[0170] The diamond wire is located on the front side of the wire saw mounting bracket 411. The part of the diamond wire used to cut the silicon rod during movement is the cutting segment.

[0171] The cutting section is staggered from the machine head through hole 411-1, so they do not interfere with each other. The machine head through hole 411-1 is used for the edge skin clamping claw mounting column 511 of the edge skin clamping frame 51 of the edge skin clamping mechanism to enter and exit.

[0172] The structure of the edge-skin clamping frame 51 and the edge-skin clamping claw mounting post 511 is described in the fifth component below. The cutting section cuts the silicon rod to form a square rod and edge skins, which need to be removed. (Combined) Figure 5A , Figure 5B , Figure 5C and Figure 5D The process of removing the edge skin is explained below:

[0173] The edge gripper mounting post 511 of the edge gripper frame 51 of the edge gripper mechanism passes forward through the head through hole, and the edge gripper mechanism clamps the edge. Then, it moves backward through the head through hole 411-1, thus removing the edge from the cutting station. During this process, the wire saw mounting frame itself does not need to move. Because the wire saw mounting frame of the wire saw assembly in the cutting head mechanism has a head through hole, the wire saw mounting frame does not need to be moved during the movement of the edge from the cutting station, saving time, improving the efficiency of edge removal, and simplifying the process of removing the edge from the cutting station, thereby increasing the efficiency of the silicon rod cutting system.

[0174] Specifically, the machine head through hole 411-1 is a vertically arranged elongated machine head through hole.

[0175] Specifically, the wire saw mounting bracket is a rigid wire saw mounting bracket.

[0176] During implementation, such as Figure 4A , Figure 4B , Figure 4C and Figure 4D As shown, the cutting segment is a horizontally arranged cutting segment and is lower than the through hole 411-1 of the machine head.

[0177] The cutting head mechanism can move from top to bottom to cut silicon rods. During the downward movement of the cutting head mechanism, the horizontally positioned cutting segment cuts the vertically positioned silicon rod from top to bottom. After cutting, the cutting segment is below the lower end face of the silicon rod. At this time, the edge skin is moved away from the cutting workpiece through the through hole of the cutting head. Because the cutting segment is below the through hole of the cutting head, the cutting segment will not interfere with the moving edge skin.

[0178] During implementation, such as Figure 4A As shown, the wire saw assembly also includes:

[0179] The drive wheel assembly 412-1 and the lower transition wheel 412-2 are respectively disposed on the front side of the wire saw mounting frame 411;

[0180] Tension wheel assembly 412-3 and upper transition wheel 412-4 are respectively disposed on the front side of the wire saw mounting frame 411;

[0181] A ring-shaped diamond wire is wound around the outer circumference of the drive wheel of the drive wheel assembly 412-1, the lower transition wheel 412-2, the tension wheel of the tension wheel assembly 412-3, and the upper transition wheel 412-4, forming the cutting section at the bottom end of the drive wheel and the lower transition wheel. The diamond wire does not interfere with the through hole of the machine head.

[0182] The drive wheel assembly is located on the lower side of the wire saw mounting bracket. The tension wheel assembly applies tension to the toroidal diamond wire, maintaining a certain tension for effective cutting of the silicon rod. The lower and upper transition wheels adjust the direction of the toroidal diamond wire.

[0183] During implementation, such as Figure 4B , Figure 4C and Figure 4D As shown, one cutting station of the silicon rod cutting system corresponds to one cutting device. One cutting device includes two cutting head mechanisms 41, and the cutting sections of the two cutting head mechanisms 41 are arranged opposite to each other.

[0184] A cutting device has two cutting head mechanisms with the cutting sections of the two cutting head mechanisms arranged opposite each other. In this way, a cutting device can cut the opposite sides of a silicon rod that is vertically set at the cutting station to form two opposite edge skins, which makes the cutting efficiency of the silicon rod high.

[0185] In practice, the two cutting head mechanisms of a cutting device are arranged opposite each other, that is, including a cutting head mechanism on one side and a cutting head mechanism on the other side. Each cutting head mechanism further includes:

[0186] The cleaning assembly is fixed to the front side of the wire saw mounting bracket;

[0187] The cleaning assembly has multiple cleaning nozzles. The first part of the cleaning nozzles is used to clean the cutting head mechanism on the opposite side and the cutting head mechanism on the same side, and the second part of the cleaning nozzles is used to clean the cutting head mechanism on the opposite side.

[0188] The cutting head mechanism on this side can also be cleaned by the first cleaning nozzle of the cutting head mechanism on this side, the first cleaning nozzle of the cutting head mechanism on the opposite side, and the second cleaning nozzle of the cutting head mechanism on the opposite side. This ensures that the cutting head mechanism on this side is cleaned by cleaning nozzles from multiple directions, resulting in high cleaning efficiency for each cutting head mechanism. The cleaning component primarily cleans the cutting head mechanism on the opposite side, while also cleaning the cutting head mechanism on this side.

[0189] During implementation, such as Figure 4A As shown, the cleaning assembly includes:

[0190] The first lower cleaning assembly 413-1 is fixed to the front side of the wire saw mounting bracket 411 and located above the drive wheel assembly 412-1. The first part of the cleaning nozzle of the first lower cleaning assembly is used to clean the drive wheel of the drive wheel assembly 412-1 of the cutting head mechanism on the opposite side and on this side. The second part of the cleaning nozzle is used to clean the drive wheel of the drive wheel assembly of the cutting head mechanism on the opposite side.

[0191] The second lower cleaning assembly 413-2 is fixed to the front side of the wire saw mounting bracket 411 and located above the lower transition wheel 412-2. The first part of the cleaning nozzle of the second lower cleaning assembly is used to clean the lower transition wheel 412-2 of the cutting head mechanism on the opposite side and the same side, and the second part of the cleaning nozzle is used to clean the lower transition wheel of the cutting head mechanism on the opposite side.

[0192] The cleaning function of each part of the first cleaning nozzle and the second cleaning nozzle of the first cleaning assembly is achieved by adjusting their respective orientations. The cleaning function of each part of the second cleaning assembly is also achieved by adjusting their respective orientations.

[0193] During implementation, such as Figure 4A As shown, the cleaning assembly further includes:

[0194] The first upper cleaning assembly 413-3 is fixed to the front side of the wire saw mounting bracket 411 and located above the tension wheel assembly 412-3. The first part of the cleaning nozzle of the first lower cleaning assembly is used to clean the tension wheel of the tension wheel assembly 412-3 of the cutting head mechanism on the opposite side and on this side. The second part of the cleaning nozzle is used to clean the tension wheel of the tension wheel assembly of the cutting head mechanism on the opposite side.

[0195] The second upper cleaning assembly 413-4 is fixed on the front side of the wire saw mounting bracket and located above the upper transition wheel 412-4. The first part of the cleaning nozzle of the second upper cleaning assembly is used to clean the upper transition wheel 412-4 of the cutting head mechanism on the opposite side and the same side, and the second part of the cleaning nozzle is used to clean the upper transition wheel of the cutting head mechanism on the opposite side.

[0196] The cleaning functions of the first and second cleaning nozzles of the first upper cleaning assembly are achieved by adjusting their orientation. Similarly, the cleaning functions of the first and second cleaning nozzles of the second upper cleaning assembly are achieved by adjusting their orientation.

[0197] Specifically, when the silicon rod is placed vertically at the cutting station, the first lower cleaning component and the second lower cleaning component are located outside the silicon rod, that is, the first lower cleaning component and the second lower cleaning component are respectively staggered from the silicon rod, so that they do not interfere with each other.

[0198] In this way, the first and second lower cleaning components can clean the cutting head mechanism on the opposite side without being blocked by the silicon rod.

[0199] Specifically, such as Figure 4B , Figure 4C and 4D As shown, the first upper cleaning component 413-3 and the second upper cleaning component 413-4 are higher than the cut silicon rod.

[0200] In this way, the silicon rod can be cleaned from above after being cut, and the cleaning fluid can be used to clean the cut silicon rod from top to bottom as it flows downward.

[0201] In practice, the cutting head mechanism further includes:

[0202] A spray assembly is fixed to the front side of the wire saw mounting frame; the spray assembly sprays water at a preset pre-spray time before each cut and during the spraying process;

[0203] The spray assembly includes a spray nozzle, which is used to spray cutting fluid onto and cool the cutting kerf formed by the silicon rod and the annular diamond wire cutting of the silicon rod.

[0204] The spray nozzles of the spray assembly spray cutting fluid onto the cutting seam formed by the silicon rod and the toroidal diamond wire cutting the silicon rod. This is beneficial for cutting the silicon rod and also cools the toroidal diamond wire to prevent it from overheating.

[0205] During implementation, such as Figure 4A As shown, the spray assembly includes:

[0206] The lower spray assembly 414-1 is fixed to the front side of the wire saw mounting bracket 411; wherein, the lower spray assembly 414-1 has a plurality of lower spray nozzles arranged at vertical intervals, and the plurality of lower spray nozzles of the lower spray assembly 414-1 are used to spray the cutting seam of the silicon rod being cut by the cutting section.

[0207] The upper spray assembly 414-2 is fixed to the front side of the wire saw mounting bracket 411 and located between the tension wheel assembly 412-3 and the head through hole 411-1; wherein, the upper spray assembly 414-2 has a plurality of upper spray nozzles arranged laterally at intervals, and the plurality of upper spray nozzles of the upper spray assembly are used to spray the upper end face of the silicon rod.

[0208] When the multiple lower spray nozzles of the lower spray assembly are above the silicon rod, they spray cutting fluid onto the cutting seam of the silicon rod by the cutting section. At the start of cutting the silicon rod, the annular diamond wire, especially the cutting section, is sprayed with cutting fluid. The multiple upper spray nozzles of the upper spray assembly spray cutting fluid onto the upper end face of the silicon rod, making cutting faster. Simultaneously, as the cutting section cuts the silicon rod from top to bottom, the cutting fluid flows downwards along the cutting section, also cooling the annular diamond wire, especially the cutting section.

[0209] Specifically, such as Figure 4E As shown, the tension wheel assembly 412-3 consists of a tension motor 412-31, a reducer 412-32, a tension swing arm 412-33, and a tension wheel 412-34. Due to the reducer, a small motor can output a large torque, saving on motor costs. Limiting blocks are installed on both sides of the tension swing arm, allowing it to rotate within a certain angle.

[0210] The structure of the support frame 44, the lateral feed mechanism, and the vertical feed mechanism.

[0211] During implementation, such as Figure 4F As shown, the cutting device 4 also includes:

[0212] Support frame 44 is used for mounting on the base 1 of the silicon rod cutting system;

[0213] A transverse feed mechanism 451 corresponds one-to-one with the cutting head mechanism 41. The cutting head mechanism and its corresponding transverse feed mechanism 451 are fixed, and the two cutting segments are arranged opposite to each other. The transverse feed mechanism 451 is slidably connected to the support frame to drive the two cutting segments closer and further apart. Specifically, the transverse feed mechanism 451 is used to drive the two cutting head mechanisms 41 closer and further apart and to adjust the distance between the cutting segments of the two cutting head mechanisms of the same cutting device.

[0214] In this way, driven by the two transverse feed mechanisms, the two cutting head mechanisms of the same cutting device can move closer and further apart, allowing the distance between the cutting segments of the two cutting head mechanisms to be adjusted. That is, the two cutting segments of the same cutting head mechanism are arranged in parallel, and the distance between the two cutting segments is adjustable. The beneficial effect is that the cutting device can be used to cut silicon rods of various diameters, making it highly versatile.

[0215] The feed mechanism is composed of a transverse feed mechanism and a vertical feed mechanism.

[0216] During implementation, such as Figure 4F As shown, the cutting device also includes:

[0217] The vertical feed mechanisms 452, which correspond one-to-one with the transverse feed mechanisms, are respectively vertically fixed on the same side of the support frame 44. The vertical feed mechanism 452 and the corresponding transverse feed mechanism 451 are fixed to drive the cutting head mechanism to move in the vertical direction.

[0218] The two vertical feed mechanisms 452 are used to drive the two horizontal feed mechanisms to move vertically, thereby driving the cutting head mechanism to move vertically.

[0219] In this way, the vertical feed mechanism can drive the corresponding horizontal feed mechanism to move in the vertical direction, i.e., the Z direction, which in turn drives the cutting head mechanism and its cutting segment to move in the vertical direction, i.e., the Z direction, thereby realizing the cutting of the vertically placed silicon rod from top to bottom in the Z direction, and driving the cutting head mechanism and its cutting segment to reset after each cutting.

[0220] During implementation, such as Figure 4F As shown, the lateral feed mechanism includes:

[0221] The wire saw has a transverse guide screw, the nut of which is fixed to the vertical feed mechanism; wherein the guiding direction of the guide screw is the direction in which the two cutting segments approach and move away from each other.

[0222] The transverse slide plate 451-1 of the wire saw is fixed to the slider of the transverse guide screw of the wire saw and to the cutting head mechanism;

[0223] A transverse drive motor and a transverse reducer for the wire saw are connected to output rotational motion to the transverse guide screw of the wire saw.

[0224] The transverse guide screw of the wire saw is used to convert the received rotational motion into linear motion along the guide rail of the transverse guide screw, and drive the cutting head mechanism to move in the transverse direction, i.e., the X direction, through the slider of the transverse guide screw and the transverse slide of the wire saw.

[0225] The transverse guide screw and transverse slide of the wire saw achieve a transverse feed mechanism through a simple structure.

[0226] During implementation, such as Figure 4F As shown, the vertical feed mechanism includes:

[0227] A wire saw vertical guide screw, the nut of which is fixed to the support frame; wherein, the guiding direction of the guide rail of the wire saw vertical guide screw is the vertical direction, i.e., the Z direction.

[0228] The vertical slide plate 452-1 of the wire saw is fixed to the slider of the vertical guide rail screw of the wire saw and to the nut of the transverse guide rail screw of the wire saw.

[0229] A vertical drive motor and a vertical reducer for a wire saw, wherein the vertical drive motor and the vertical reducer output rotational motion to the vertical guide rail screw of the wire saw.

[0230] The vertical guide screw of the wire saw is used to convert the received rotational motion into linear motion along the guide rail of the vertical guide screw, and drive the transverse feed mechanism and the cutting head mechanism to move in the vertical direction through the slider of the vertical guide screw.

[0231] The lead screw nut and support frame of the wire saw vertical guide rail screw are fixed as a whole, relative to the machine base. The slider of the wire saw vertical guide rail screw and the lead screw nut of the wire saw transverse guide rail screw are fixed as a whole. The slider of the wire saw vertical guide rail screw, the vertical slide plate of the wire saw, and the lead screw nut of the wire saw transverse guide rail screw, as a whole, can move in the vertical direction, thereby driving the transverse feed mechanism to move in the vertical direction, and thus driving the cutting head mechanism and its cutting section to move in the vertical direction.

[0232] In practice, the cutting device also includes:

[0233] The feed control unit is connected to the two transverse drive motors and two vertical drive motors of the same cutting device, respectively, and is used to control the distance between the cutting sections of the two cutting head mechanisms, and also to control the movement of the two cutting head mechanisms in the vertical direction.

[0234] The feed control unit, in conjunction with the transverse drive motor and the vertical drive motor of the wire saw, enables convenient control of the lateral distance between the cutting segments of the two cutting head mechanisms, as well as the vertical movement of the cutting segments of the two cutting head mechanisms for cutting. In other words, the cutting can be controlled.

[0235] During implementation, such as Figure 4F As shown, the vertical feed mechanism further includes:

[0236] A blocking pin 461, the socket of which is fixed to the upper part of the side of the support frame 44;

[0237] The blocking strip 462 is horizontally fixed at the vertical slide plate 452-1 of the wire saw;

[0238] The blocking pin is used to prevent the blocking strip from moving downward when the cutting head mechanism moves to its highest position, thereby preventing the wire saw from moving downward along the vertical slide and the cutting head mechanism.

[0239] The wire saw's vertical sliding plate moves downwards via a mechanical structure, using a combination of a blocking pin and a blocking strip. When the cutting head mechanism reaches its highest position, personnel may need to access the area beneath it to maintain equipment. In this case, the cutting head mechanism could potentially fall unexpectedly, causing injury. The mechanical blocking mechanism, consisting of the blocking pin and blocking strip, prevents the cutting head mechanism from falling.

[0240] Structure of silicon rod chuck mechanism 42

[0241] During implementation, such as Figure 4G As shown, the cutting device includes a silicon rod chuck mechanism 42, which includes:

[0242] Chuck holder 421;

[0243] The floating head 422 is installed at the chuck frame 421 and is used to press against the upper end face of the vertically placed silicon rod;

[0244] The edge support bracket is connected to the clamp frame 421 and can extend downward and return upward. The edge support bracket is used to extend downward and support the outer peripheral surface of the silicon rod, and the edge support bracket is also used to return upward and leave the outer peripheral surface of the silicon rod.

[0245] The chuck serves as the mounting base. The floating head presses against the upper surface of the vertically placed silicon rod, clamping it vertically. During the cutting process, the floating head tilts at a preset angle to reduce or offset the stress generated during cutting. To prevent the edge skin formed after cutting from tipping over, an edge skin support bracket is installed. This bracket is connected to the chuck and can extend downwards and return to its original position. Thus, after the cutting section is placed on the upper surface of the silicon rod, the edge skin support bracket extends downwards and supports the outer circumference of the rod. This ensures that as the cutting section cuts the silicon rod into a square rod and edge skin, the bracket supports the edge skin on its upper outer side, preventing it from tipping over. When it's time to remove the edge skin, the bracket returns to its original position, no longer contacting the edge skin, allowing for easy removal.

[0246] Specifically, the chuck is a rigid chuck.

[0247] Specifically, the chuck is capable of moving up and down, and the floating head is used to press against the upper end face of the vertically placed silicon rod.

[0248] Specifically, the floating head is mounted on the downward-facing end face of the chuck.

[0249] In this way, the floating head can easily press against the upper surface of the vertically placed silicon rod, and can also easily leave the upper surface of the cut silicon rod.

[0250] During implementation, such as Figure 4G As shown, the side support bracket includes:

[0251] The side support bracket mounting part 423-1 is fixed to the clamp frame;

[0252] The handrail fixing component 423-2 and the side handrail 423-3 are fixed to the side of the handrail fixing component 423-2 away from the upper floating head and extend downward;

[0253] The edge support driving device is connected to the edge support bracket and the handrail fixing component, respectively, and is used to drive the handrail fixing component and the edge support handrail to extend downward and return upward.

[0254] Specifically, such as Figure 4G As shown, the edge support driving device is an edge support driving cylinder 423-4. The cylinder body of the edge support driving cylinder is fixed to the edge support bracket mounting part 423-1. The guide rod of the edge support driving cylinder is fixed to the support rod fixing part 423-2. The extension and retraction of the guide rod of the edge support driving cylinder drives the support rod fixing part 423-2 and the edge support rod 423-3 to extend downward and return upward.

[0255] The support rod fixing component and the edge support rod are fixed as a whole, and are connected to the edge support rod bracket mounting component via an edge support rod drive cylinder. When the guide rod of the edge support rod drive cylinder extends, the support rod fixing component and the edge support rod extend downwards as a whole, with the edge support rod resting on the outer circumference of the silicon rod. When the guide rod of the edge support rod drive cylinder retracts, the support rod fixing component and the edge support rod retract upwards as a whole, causing the edge support rod to retract upwards and move away from the silicon rod.

[0256] During implementation, such as Figure 4G As shown, four side rails 423-3 are fixed around one of the rail fixing members 423-2.

[0257] In this way, the two edge skins are supported on the outer circumference of the silicon rod by the four edge skin support rods of a support rod fixing component, and each edge skin is supported by two edge skin support rods.

[0258] After the cutting section is placed on the upper surface of the vertically placed silicon rod, the edge support rod extends downwards to support the outer circumference of the silicon rod. After a single cut is completed, the edge support rod retracts upwards, removing the two edge pieces.

[0259] Specifically, such as Figure 4G As shown, the silicon rod chuck mechanism further includes:

[0260] The vertical movement assembly 424 of the chuck is fixed to the support frame 44 and located between the two cutting head mechanisms 41;

[0261] The chuck frame is connected to the vertical motion component of the chuck frame. The vertical motion component of the chuck frame is used to drive the chuck frame to move up and down in the vertical direction, i.e., the Z direction, so as to drive the floating head to press against the upper end face of the vertically placed silicon rod and move away from the upper end face of the cut silicon rod.

[0262] Structure of silicon rod support mechanism 43

[0263] During implementation, such as Figure 4H As shown, the cutting device also includes a silicon rod support mechanism 43 for supporting the lower end face of a vertically placed silicon rod. The silicon rod support mechanism 43 is fixed at the cutting station. The silicon rod support mechanism includes:

[0264] Silicon rod support mounting base 431 is fixed to the base of the silicon rod cutting system; that is, the silicon rod support mechanism is fixed at the base corresponding to a cutting station.

[0265] A floating head 432 is used to support the lower end face of a vertical silicon rod, and the floating head is installed above the silicon rod support mounting base 431.

[0266] In this way, during the silicon rod cutting process, the lower floating head itself can tilt at a preset angle to reduce or offset the stress generated by cutting. When the cutting section of the cutting head mechanism cuts from top to bottom, the stress generated by cutting is reduced or offset by the tilt of the lower floating head, thereby preventing edge chipping when cutting the lower part of the silicon rod.

[0267] During implementation, such as Figure 4H As shown, the silicon rod support mechanism further includes an edge skin support assembly, which includes:

[0268] The edge support drive device is fixed on the silicon rod support mounting base 431 and spaced apart from the lower floating head;

[0269] An edge support head 433-1 is used to support the edge skin position formed after the silicon rod is cut on the lower end face. The edge support head 433-1 is fixed to the top of the edge support drive device. The edge support drive device is used to lock the edge support head to maintain its height and support the edge skin when the silicon rod is cut into square bars and edge skin.

[0270] The process of placing the silicon rod onto the silicon rod support mechanism is as follows:

[0271] First, the edge skin support head is in the initial position, and the top of the edge skin support head in the initial position is lower than the top of the lower floating head support head;

[0272] Next, place the silicon rod on the lower floating head, and after the lower floating head support head is supported by the lower end face of the silicon rod;

[0273] Then, the edge support head is pushed upwards and tightened, and the edge support is locked in height by the drive device.

[0274] When the cutting section of the cutting head mechanism 41 cuts from top to bottom, the stress generated by the cutting causes the lower floating head to tilt slightly, while the edge support head always maintains support for the edge. In this way, the lower floating head and the edge support head work together to reduce or offset the stress generated by the cutting, thereby preventing edge chipping when cutting the lower part of the silicon rod.

[0275] In practice, the driving device for the edge skin support is the edge skin support cylinder 433-2;

[0276] The cylinder body of the edge skin support cylinder 433-2 is fixed to the silicon rod support mounting base 431, and the guide rod of the edge skin support cylinder 433-2 is fixed to the edge skin support head 433-1.

[0277] During implementation, such as Figure 4HAs shown, the lower floating head has three upward-protruding lower floating head support heads 432-1, and the three lower floating head support heads 432-1 are located at the three vertices of a triangle. The three lower floating head support heads can define a plane such that each of the three lower floating head support heads supports the lower end face of the silicon rod.

[0278] In implementation, the floating head has three downward-protruding pressing heads, which are located at the three vertices of a triangle. The three pressing heads define a plane such that each of the three pressing heads presses against the lower end face of the silicon rod.

[0279] When the cutting section of the cutting head mechanism cuts from top to bottom, the lower floating head tilts slightly due to the stress generated by the cutting. The upper floating head can compensate for this, so that the silicon rod can be stably clamped between the lower and upper floating heads.

[0280] In practice, there are four edge skin support components, and the four edge skin support components are located at the four vertices of a rectangle; two of the edge skin support components are used to support an edge skin formed by cutting a silicon rod.

[0281] A pair of edge support components can effectively support one edge.

[0282] During implementation, such as Figure 4H As shown, the silicon rod support mechanism further includes a silicon rod rotating assembly, which includes:

[0283] Silicon rod rotating shaft 434-1, the lower floating head is fixed on the silicon rod rotating shaft 434-1, and the silicon rod rotating shaft 434-1 is rotatably connected to the silicon rod support mounting base 431;

[0284] The silicon rod drive motor 434-2 is fixed below the silicon rod support mounting base 431 and is connected to the silicon rod rotating shaft 434-1 to drive the silicon rod rotating shaft 434 to rotate.

[0285] After the first cut of the silicon rod, forming two edge skins and removing them, the edge skin support head moves downwards to reset. The silicon rod drive motor drives the silicon rod rotating shaft to rotate 90 degrees, causing the lower floating head and the silicon rod sandwiched between the lower and upper floating heads to rotate 90 degrees. To achieve this 90-degree rotation, the silicon rod drive motor can actively drive the silicon rod rotating shaft to rotate 90 degrees, while the silicon rod passively rotates 90 degrees, preparing for the subsequent second cut.

[0286] The fifth component: the structure of the edge unloading device 5 of the silicon rod cutting system.

[0287] like Figure 1A and Figure 5As shown, two cutting devices 4 are fixed on the base 1. The cutting devices 4 are used to cut the silicon rod from top to bottom to form square rods and edge skins. The edge skin unloading device 5 unloads the edge skins.

[0288] During implementation, such as Figure 1A , Figure 5 , Figure 5A , Figure 5B , Figure 5C and Figure 5D As shown, the edge unloading device 5 of the silicon rod cutting system includes:

[0289] Edge clamping mechanism;

[0290] Edge skin collection agency 53;

[0291] The edge skin clamping mechanism is used to clamp the edge skin formed by cutting the silicon rod into square bars and transport it to the edge skin collection mechanism 53 for storage.

[0292] In practice, the edge skin collection mechanism 53 has a collection area, which corresponds one-to-one with the cutting station of the silicon rod cutting system;

[0293] The edge unloading device also includes a collection control unit, which controls the edge clamping mechanism to clamp the edge generated by the cut silicon rod from each cutting station and transport it to the edge collection mechanism, and the edge generated by cutting the same silicon rod is placed in the same collection area.

[0294] The edge unloading device of the silicon rod cutting system in this application embodiment has an edge collection mechanism divided into collection areas, each corresponding to a cutting station of the silicon rod cutting system. Through the collection control unit, the edge clamping mechanism is controlled to clamp the edge generated from the cut silicon rod at each cutting station and transport it to the edge collection mechanism in a specific order. Edges generated from cutting the same silicon rod are placed in the same collection area, thus enabling the collection of four edge pieces generated from cutting the same silicon rod into square bars within the same collection area of ​​the edge collection mechanism. This provides a basis for subsequent labeling and management of the four edge pieces generated from the same silicon rod.

[0295] Specifically, silicon rods are coded to form silicon rod codes to distinguish each other. The silicon rods are cut into square rods and four edge strips. The four edge strips from the same silicon rod are collected in the same collection area of ​​an edge strip collection mechanism. This ensures that edge strips placed in the same collection area all come from the same silicon rod, facilitating subsequent coding of the edge strips. The edge strip codes include both the silicon rod code and a numerical code, such as silicon rod code-1, silicon rod code-2, silicon rod code-3, and silicon rod code-4.

[0296] Structure of the edge clamping mechanism

[0297] During implementation, such as Figure 5A , Figure 5B , Figure 5C and Figure 5D As shown, the edge leather clamping mechanism includes an edge leather clamping frame 51, which comprises:

[0298] Edge clamp mounting post 511;

[0299] The top clamping claw 512-1 and the bottom clamping claw 512-2 are installed on the front side of the edge clamping claw mounting post 511 and are arranged opposite each other.

[0300] Among them, at least one of the top clamping jaws 512-1 and the bottom clamping jaws 512-2 is slidably connected to the edge clamping jaw mounting post, and can move up and down along the vertical direction, i.e., the Z direction of the silicon rod cutting system. The side of the edge clamping jaw mounting post that mounts the top clamping jaws 512-1 and the bottom clamping jaws 512-2 is the positive side.

[0301] The edge gripping mechanism's edge gripping frame includes an edge gripper mounting post that serves as the mounting base for the top and bottom grippers. At least one of the top gripper 512-1 and the bottom gripper 512-2 is slidably connected to the edge gripper mounting post, allowing adjustment of the distance between them. When gripping a vertical edge, first adjust the distance between the top and bottom grippers to be greater than the vertical edge to be gripped; then, position the top and bottom grippers at both ends of the vertical edge; finally, adjust the distance between the top and bottom grippers in the Z-direction of the silicon rod cutting system, ensuring that the top and bottom grippers hold the two end faces of the edge, thus achieving vertical gripping of the edge.

[0302] Specifically, the edge-skin clamp mounting post is a rigid edge-skin clamp mounting post.

[0303] During implementation, such as Figure 5A , Figure 5B , Figure 5C and Figure 5D As shown, the bottom clamping claw 512-2 is fixed to the bottom end of the edge clamping claw mounting post 511;

[0304] The connection between the top clamp 512-1 and the edge clamp mounting post 511 is a sliding connection, and the top clamp 512-1 can move up and down along the vertical direction, i.e., the Z direction of the silicon rod cutting system.

[0305] The bottom jaw is fixed to the bottom end of the edge clamping jaw mounting post, while the top jaw is slidably mounted on the upper part of the mounting post, with the top and bottom jaws positioned opposite each other. This allows the top jaw to move up and down along the vertical direction (Z-direction of the silicon rod cutting system), enabling adjustment of the distance between the top and bottom jaws. When clamping a vertical edge, first adjust the distance between the top and bottom jaws to be greater than the edge to be clamped, placing the bottom jaw on the lower end face of the vertical edge; then, the top jaw moves downwards along the Z-direction until it presses against the upper end face of the edge; at this point, the edge is clamped.

[0306] During implementation, such as Figure 5A , Figure 5B , Figure 5C and Figure 5D As shown, the edge skin clamping frame 51 further includes:

[0307] Vertically arranged side gripper back plate 513;

[0308] The edge gripper slide plate 514 is placed on one surface of the edge gripper back plate 513 and is slidably connected to the edge gripper back plate 513. The edge gripper slide plate can move horizontally along the edge gripper back plate, and the movement direction of the edge gripper slide plate is consistent with the X direction of the silicon rod cutting system where the edge unloading device is located.

[0309] The edge gripper mounting post fixing plate 515 has two opposite ends fixed to the edge gripper sliding plate 514 and the edge gripper mounting post 511, respectively, so that the edge gripper mounting post 511, the edge gripper mounting post fixing plate 515 and the edge gripper sliding plate 514 are fixed as one piece.

[0310] The edge gripper slide plate 514 moves left and right along the X direction of the silicon rod cutting system, which drives the top gripper 512-1 and bottom gripper 512-2 installed on the edge gripper mounting post 511 to move left and right along the X direction of the silicon rod cutting system.

[0311] The edge gripper mounting post, edge gripper mounting post fixing plate, and edge gripper sliding plate are fixed as a whole. As a single unit, they can move left and right along the X-direction of the silicon rod cutting system. This allows the top and bottom grippers mounted on the same edge gripper mounting post to move left and right as a whole along the X-direction of the silicon rod cutting system. Thus, the edge gripping mechanism can move left and right along the X-direction of the silicon rod cutting system, bringing the top and bottom grippers mounted on the same edge gripper mounting post closer to the vertical edge to be gripped along the X-direction of the silicon rod cutting system.

[0312] During implementation, such as Figure 5A , Figure 5B , Figure 5C and Figure 5D As shown, there are two edge skin clamping claw mounting posts 511, and the top clamping claw 512-1 and the bottom clamping claw 512-2 are mounted on the front side of each edge skin clamping claw mounting post 511;

[0313] There are two edge skin claw mounting post fixing plates 515, each fixing one edge skin claw mounting post 511;

[0314] There are two edge gripper slide plates 514, each of which is fixed to one edge gripper mounting post fixing plate 515;

[0315] The two edge-grip mounting posts 511 are arranged opposite each other on their front sides.

[0316] In this way, since the two edge-strip clamping posts are positioned opposite each other, the distance between the top and bottom clamping jaws mounted on the two edge-strip clamping posts can be adjusted in the X direction of the silicon rod cutting system. This is especially suitable for clamping two opposite edges when the same silicon rod is cut into square bars.

[0317] During implementation, such as Figure 5A , Figure 5B , Figure 5C and Figure 5D As shown, the edge skin clamping frame 51 further includes:

[0318] The top gripper Z-direction guide rail 516, each of the edge gripper mounting posts 511 has two parallel top gripper Z-direction guide rails 516; wherein, the guiding direction of the top gripper Z-direction guide rail 516 is the vertical direction and is consistent with the Z direction of the silicon rod cutting system;

[0319] The top gripper Z-direction slider is located on the back side of the top gripper 512-1;

[0320] A top gripper Z-direction movement cylinder is fixed at the edge gripper mounting post 511, and the piston rod of the top gripper Z-direction movement cylinder is fixed to the back side of the top gripper.

[0321] The top clamp Z-direction movement cylinder is used to push the top clamp 512-1 to move up and down along the top clamp Z-direction guide rail in the vertical direction, i.e., the Z-direction of the silicon rod cutting system.

[0322] In this way, by cooperating with the Z-direction guide rail of the top gripper, the Z-direction slider of the top gripper, and the Z-direction motion cylinder of the top gripper, the vertical movement of the top gripper can be realized with a simple structure.

[0323] In practice, the edge skin clamping frame further includes:

[0324] The gripper X-direction guide rail has two parallel gripper X-direction guide rails on the surface of the edge gripper back plate near the edge gripper slide plate; wherein, the guiding direction of the gripper X-direction guide rail is consistent with the X-direction of the silicon rod cutting system.

[0325] The gripper X-direction slider is disposed on the surface of the edge gripper slide plate near the edge gripper back plate;

[0326] A gripper X-direction movement cylinder is fixed at the back plate of the edge gripper, and the piston rod of the gripper X-direction movement cylinder is fixed to the edge gripper slide plate;

[0327] The gripper X-direction movement cylinder is used to push the edge gripper slide plate to move along the gripper X-direction guide rail, thereby causing the top gripper and bottom gripper mounted on one edge gripper mounting post fixing plate to move closer to or further away from the top gripper and bottom gripper on the other edge gripper mounting post fixing plate in the X direction.

[0328] In this way, through the cooperation of the gripper X-direction guide rail, the gripper X-direction slider, and the gripper X-direction movement cylinder, the edge gripper mounting post fixing plate can move left and right in the X direction of the silicon rod cutting system with a simple structure. This allows the top and bottom grippers mounted on one edge gripper mounting post fixing plate to move closer to or further away from the top and bottom grippers of the other edge gripper mounting post fixing plate in the X direction of the silicon rod cutting system.

[0329] Specifically, such as Figure 5A , Figure 5B , Figure 5C and Figure 5D As shown, the height of the edge gripper mounting post fixing plate 515 is less than the height of the edge gripper mounting post 511, and the height of the edge gripper back plate 513 is less than the height of the edge gripper mounting post 511.

[0330] The edge-skin gripper mounting post fixing plate requires a relatively high height to accommodate edge skins generated from silicon rods of various heights. To reduce weight and material usage, the heights of the edge-skin gripper mounting post fixing plate, the edge-skin gripper sliding plate, and the edge-skin gripper back plate are all smaller than the height of the edge-skin gripper mounting post.

[0331] Specifically, such as Figure 5A , Figure 5B , Figure 5C and Figure 5D As shown, the edge gripper mounting post fixing plate 515 is fixed at the middle position of the edge gripper mounting post 511, and the ratio of the length of the edge gripper mounting post fixing plate 515 in the Z direction to the height of the edge gripper mounting post 511 is greater than or equal to one-third and less than two-thirds.

[0332] In this way, the force applied by the edge skin clamping claw mounting post fixing plate to the edge skin clamping claw mounting post is at the middle position of the edge skin clamping claw mounting post height, which makes the edge skin generated when the edge skin clamping mechanism clamps silicon rods of various heights relatively stable, and the edge skin clamping claw mounting post fixing plate is not easily damaged or deformed.

[0333] Specifically, the fixing between the edge gripper mounting post fixing plate, the edge gripper mounting post, and the edge gripper sliding plate is a detachable connection.

[0334] The edge gripper mounting post, edge gripper mounting post fixing plate, and edge gripper sliding plate are three components that are fixed together by a detachable connection, which has lower requirements for manufacturing precision. Furthermore, if any component is damaged, such as the edge gripper mounting post fixing plate which is subjected to a large downward force in the Z direction, only the damaged component needs to be replaced.

[0335] In practice, the edge clamping mechanism further includes:

[0336] The clamping frame motion assembly is fixed to the edge gripper back plate and mounted on the base of the silicon rod cutting system. The Y direction of the silicon rod cutting system is perpendicular to the X and Z directions of the silicon rod cutting system.

[0337] The clamping frame motion component is used to drive the clamping frame to reciprocate linearly in the X, Y and Z directions of the silicon rod cutting system.

[0338] During implementation, such as Figure 5C As shown, the clamping frame motion assembly includes:

[0339] The clamping frame X-direction guide rail 521-1 is used to fix the upper surface of the base of the silicon rod cutting system; wherein, the guiding direction of the clamping frame X-direction guide rail is consistent with the X-direction of the silicon rod cutting system.

[0340] Clamping frame X-direction mounting base 521-2;

[0341] The X-direction movement slider of the clamping frame is fixed to the outer bottom of the X-direction mounting base of the clamping frame, and the X-direction movement slider of the clamping frame cooperates with the X-direction movement guide rail of the clamping frame;

[0342] The clamping frame X-direction mounting base can move along the clamping frame X-direction guide rail in the X-direction of the silicon rod cutting system, thereby driving the clamping frame to move in the X-direction of the silicon rod cutting system.

[0343] During implementation, such as Figure 5C As shown, the clamping frame motion assembly further includes:

[0344] Clamping frame Y-direction mounting base 522;

[0345] A clamping frame Y-direction rack and a clamping frame Y-direction gear mesh with each other. The clamping frame Y-direction rack is fixed to the upper surface of the clamping frame X-direction mounting base. The guiding direction of the clamping frame Y-direction rack is consistent with the Y-direction of the silicon rod cutting system, and the clamping frame Y-direction gear is fixed to the outer bottom of the clamping frame Y-direction mounting base.

[0346] During implementation, such as Figure 5C As shown, the clamping frame motion assembly further includes:

[0347] Clamping frame Z-direction mounting base 523;

[0348] The clamping frame Z-direction guide screw has its nut fixed to the upper surface of the clamping frame Y-direction mounting base; wherein the guiding direction of the guide rail of the clamping frame Z-direction guide screw is vertical and consistent with the Z-direction of the silicon rod cutting system, and the slider of the clamping frame Z-direction guide screw is fixed at the back plate of the edge gripper.

[0349] The Z-direction guide screw of the clamping frame is used to convert the received rotational motion into linear motion along the guide rail of the Z-direction guide screw of the clamping frame, and outputs the linear motion through the slider of the Z-direction guide screw of the clamping frame.

[0350] Specifically, the Z-direction guide screw of the clamping frame is driven by a motor.

[0351] Structure of edge skin collection mechanism 53

[0352] During implementation, such as Figure 5E As shown, the edge skin collection mechanism 53 includes:

[0353] Collection base frame 531;

[0354] Two sets of side boxes, each set of side boxes having at least one side box 532, one of the side boxes serving as a collection area;

[0355] A side box synchronous reverse motion assembly is used to drive the two side boxes 532 to move synchronously and in opposite directions. The side box synchronous reverse motion assembly is fixed on the collection base frame 531, and the two sets of side boxes 532 are fixed to the side box synchronous reverse motion assembly.

[0356] The synchronous reverse motion component of the edge box enables the two sets of edge boxes to switch synchronously in opposite directions, which is convenient to operate; at the same time, it also avoids the two sets of edge boxes being located on the same side, which would cause interference to the placement of edge boxes.

[0357] During implementation, such as Figure 5EAs shown, the side box synchronous reverse motion assembly includes:

[0358] Two side box guide rails 533-1 are fixed parallel to each other on the upper surface of the collection base frame 531;

[0359] Two side box sliders 533-2 are respectively set on the outer bottom of two sets of side boxes 532, and the side box sliders 533-2 and the side box guide rails 533-1 are slidably engaged;

[0360] When there are two or more side boxes in each group, the side boxes in each group are spaced apart along the length of the side box guide rail.

[0361] During implementation, such as Figure 5E As shown, the side box synchronous reverse motion assembly further includes:

[0362] A sliding cylinder 533-3 for the side leather boxes is fixed at the collection base 531. The piston rod of the sliding cylinder 533-3 is fixed to the outer bottom of the first group of side leather boxes. The first group of side leather boxes is a group of side leather boxes that are fixed to the piston rod of the sliding cylinder 533-3. The second group of side leather boxes is a group of side leather boxes that are not fixed to the piston rod of the sliding cylinder 533-3.

[0363] Synchronous wheel 533-4 is fixed on the upper surface of the collection base 531 and located between the two sets of side boxes 532;

[0364] A timing belt 533-5 is provided, which passes around the timing pulley 533-4 and has its two ends fixed to two sets of side boxes 532 respectively. The side box sliding cylinder 533-3 is used to push the first set of side boxes to reciprocate linearly along the side box guide rail 533-1, thereby driving the second set of side boxes to reciprocate linearly in the opposite direction.

[0365] During implementation, such as Figure 5E As shown, each of the side boxes 532 has four side box storage positions, which are arranged in two rows and are adjacent to each other along the guide direction of the side box guide rail.

[0366] During implementation, such as Figure 5E As shown, one end of each of the two edge box guide rails is set as the edge position;

[0367] The edge skin collection mechanism also includes:

[0368] The photoelectric bracket 534-1 is fixed to the collection base frame 531;

[0369] Two pairs of storage position photoelectric modules 534-2 are arranged in two rows; each pair of storage position photoelectric modules 534-2 is fixed relative to the photoelectric bracket, and the two pairs of storage position photoelectric modules 534-2 are used to detect whether the edge leather is placed in the edge leather storage position of the edge leather box located at the edge leather position.

[0370] Specifically, the four edge storage positions of the same edge box are used to hold the four edge strips that are cut off after the same silicon rod is cut into square bars, so as to encode the four edge strips from the same silicon rod.

Claims

1. A silicon rod cutting system, characterized by, include: Edge clamping mechanism; An edge skin collection mechanism, wherein the edge skin collection mechanism has a collection area, and the collection area corresponds one-to-one with the cutting station of the silicon rod cutting system; The edge-gripping mechanism is used to clamp the edge skin generated by the silicon rod being cut from each cutting station of the silicon rod cutting system; the same collection area is used to collect the edge skin generated by cutting the same silicon rod. The cutting device includes a silicon rod chuck mechanism; The silicon rod chuck mechanism includes: Chuck holder; An upper floating head is installed at the chuck frame; the chuck frame is capable of moving up and down and the upper floating head is used to press against the upper end face of a vertically placed silicon rod; the upper floating head has three downward-protruding upper floating head clamping heads, and the three upper floating head clamping heads are located at the three vertices of a triangle. The edge support bracket is connected to the clamp frame and can extend downward and return upward. The edge support bracket is used to extend downward and support the outer peripheral surface of the silicon rod. The edge support bracket is also used to return upward and leave the outer peripheral surface of the silicon rod. The edge-supporting skin bracket includes: The side support bracket is fixed to the clamp frame; The handrail fixing component and the side handrail, wherein the side handrail is fixed to the side of the handrail fixing component away from the upper floating head and extends downward; The edge support driving device is connected to the edge support bracket mounting component and the handrail fixing component respectively, and is used to drive the handrail fixing component and the edge support handrail to extend vertically downward and return vertically upward; Four side rails are fixed around the perimeter of one of the rail fixing members; The cutting device also includes a silicon rod support mechanism for supporting the lower end face of a vertically placed silicon rod. The silicon rod support mechanism includes: Silicon rod support mounting base, edge skin support assembly, floating head, silicon rod rotating assembly; The floating head is installed above the silicon rod support mounting base and is used to support the lower end face of the vertically placed silicon rod. The edge support assembly includes: an edge support drive device and an edge support head. The edge support drive device is fixed on the silicon rod support mounting base and spaced apart from the lower floating head. The edge support head is used to support the edge position formed after cutting on the lower end face of the vertically placed silicon rod. The edge support head is fixed at the top of the edge support drive device. The lower floating head has three upward-protruding lower floating head support heads, and the three lower floating head support heads are located at the three vertices of a triangle; The silicon rod rotating assembly includes: A silicon rod rotating shaft, the lower floating head is fixed on the silicon rod rotating shaft, and the silicon rod rotating shaft is rotatably connected to the silicon rod support mounting base; A silicon rod drive motor is fixed under the silicon rod support mounting base and connected to the silicon rod rotating shaft to drive the silicon rod rotating shaft to rotate.

2. The silicon rod cutting system according to claim 1, characterized in that, The edge leather clamping mechanism includes: Vertically arranged side gripper back plate; The clamping frame motion assembly is fixed to the edge gripper back plate and mounted on the base of the silicon rod cutting system. The Y direction of the silicon rod cutting system is perpendicular to the X and Z directions of the silicon rod cutting system. Edge clamping frame; The clamping frame motion component is used to drive the edge clamping frame to perform linear reciprocating motion in the X, Y and Z directions of the silicon rod cutting system.

3. The silicon rod cutting system according to claim 2, characterized in that, The edge leather clamping frame includes: Edge-mounted clamps for mounting posts; The top and bottom clamps are installed on the front side of the edge clamp mounting post and are arranged opposite each other vertically. Wherein, at least one of the top clamping claw and the bottom clamping claw is slidably connected to the edge clamping claw mounting post and is able to move up and down in the vertical direction, and the side of the edge clamping claw mounting post that mounts the top clamping claw and the bottom clamping claw is the front side of the edge clamping claw mounting post.

4. The silicon rod cutting system according to claim 3, characterized in that, The bottom clamp is fixed to the bottom end of the edge clamp mounting post; The connection between the top clamp and the side clamp mounting post is a sliding connection, and the top clamp can move up and down along the vertical direction.

5. The silicon rod cutting system according to claim 4, characterized in that, The edge leather clamping mechanism also includes: The edge skin gripper slide plate is disposed on one surface of the edge skin gripper back plate and is slidably connected to the edge skin gripper back plate. The edge skin gripper slide plate can move horizontally along the edge skin gripper back plate. The movement direction of the edge skin gripper slide plate is consistent with the X direction of the silicon rod cutting system where the edge skin unloading device is located. The edge gripper mounting post fixing plate has its opposite ends fixed to the edge gripper sliding plate and the edge gripper mounting post, respectively.

6. The silicon rod cutting system according to claim 5, characterized in that, There are two edge skin clamping claw mounting posts, and the top clamping claw and the bottom clamping claw are mounted on the front side of each edge skin clamping claw mounting post; There are two edge skin claw mounting post fixing plates, each fixing one edge skin claw mounting post; There are two edge-skin gripper slide plates, each of which is fixed to one of the edge-skin gripper mounting post fixing plates; The two edge-grip mounting posts are arranged opposite each other on their front sides.

7. The silicon rod cutting system according to claim 6, characterized in that, The edge leather clamping mechanism also includes: The top gripper Z-direction guide rail, each of the edge gripper mounting posts has two parallel top gripper Z-direction guide rails; wherein, the guiding direction of the top gripper Z-direction guide rail is the vertical direction and is consistent with the Z direction of the silicon rod cutting system; The top gripper's Z-direction slider is located on the back side of the top gripper; A top gripper Z-direction movement cylinder is fixed at the edge gripper mounting post, and the piston rod of the top gripper Z-direction movement cylinder is fixed to the back side of the top gripper. The top gripper Z-direction movement cylinder is used to push the top gripper to move up and down in the vertical direction.

8. The silicon rod cutting system according to any one of claims 5 to 7, characterized in that, The edge leather clamping mechanism also includes: The gripper X-direction guide rail has two parallel gripper X-direction guide rails on the surface of the edge gripper back plate near the edge gripper slide plate; wherein, the guiding direction of the gripper X-direction guide rail is consistent with the X-direction of the silicon rod cutting system. The gripper X-direction slider is disposed on the surface of the edge gripper slide plate near the edge gripper back plate; A gripper X-direction movement cylinder is fixed at the back plate of the edge gripper, and the piston rod of the gripper X-direction movement cylinder is fixed to the edge gripper slide plate; The gripper X-direction movement cylinder is used to push the edge gripper slide plate to move along the gripper X-direction guide rail, thereby causing the upper and lower grippers mounted on one edge gripper mounting post fixing plate to move closer to or further away from the upper and lower grippers on the other edge gripper mounting post fixing plate.

9. The silicon rod cutting system according to claim 1, characterized in that, The edge skin collection mechanism includes: Collection base frame; Two sets of side boxes; each set of side boxes has at least one side box. The edge box synchronous reverse motion assembly is fixed on the collection base frame, and the two sets of edge boxes are fixed to the edge box synchronous reverse motion assembly; wherein, the edge box synchronous reverse motion assembly is used to drive the two sets of edge boxes to move synchronously in opposite directions.

10. The silicon rod cutting system according to claim 9, characterized in that, The side box synchronous reverse motion assembly includes: Two side box guide rails are fixed parallel to each other on the upper surface of the collection base frame; Two side box sliders are respectively set on the outer bottom of two sets of side boxes, and the side box sliders and the side box guide rails slide in cooperation; When each group of side boxes consists of two or more side boxes, the side boxes in each group are spaced apart along the length of the side box guide rail.

11. The silicon rod cutting system according to claim 10, characterized in that, The side box synchronous reverse motion assembly also includes: A cylinder for sliding the side leather boxes is fixed at the collection base frame, and the piston rod of the cylinder for sliding the side leather boxes is fixed to the outer bottom of the first group of side leather boxes; wherein, the first group of side leather boxes is a group of side leather boxes fixed to the piston rod of the cylinder for sliding the side leather boxes. Synchronous pulleys are fixed to the upper surface of the collection base and located between the two sets of side boxes; A timing belt, which wraps around the timing pulley and whose two ends are respectively fixed to two sets of side boxes.

12. The silicon rod cutting system according to claim 11, characterized in that, Each of the aforementioned leather boxes has four leather storage positions, which are arranged in two rows, and the two rows of leather storage positions are arranged adjacent to each other along the guide direction of the leather box guide rail.

13. The silicon rod cutting system according to claim 12, characterized in that, One end of each of the two edge box guide rails is set as the edge position; The edge skin collection mechanism also includes: The photoelectric support is fixed to the collection base frame; Two pairs of photoelectric modules for storage positions are arranged in two rows; each pair of photoelectric modules for storage positions is fixed relative to the photoelectric bracket. The two pairs of photoelectric modules for storage positions are used to detect whether the storage position of the edge box located at the edge position has been placed with edge leather.

14. The silicon rod cutting system according to claim 12, characterized in that, It also includes a cutting head mechanism, which comprises a wire saw assembly; the wire saw assembly includes: A wire saw mounting bracket, the wire saw mounting bracket having a vertical through hole for the saw head; Diamond wire is installed on the front side of the wire saw mounting bracket, and the cutting section of the diamond wire does not interfere with the through hole of the saw head; The cutting section is the part of the diamond wire used to cut the silicon rod during movement, and the side of the wire saw mounting bracket where the diamond wire is installed is the front side of the wire saw mounting bracket.

15. The silicon rod cutting system according to claim 14, characterized in that, The cutting section is lower than the through hole of the machine head.

16. The silicon rod cutting system according to claim 12, characterized in that, It also includes loading and unloading devices. The loading and unloading device includes a round bar loading assembly, which includes: L-shaped bar feeding rack; The loading and unloading device also includes: The loading and unloading support frame is rotatably connected to the round bar loading rack. The loading and turning drive device is fixed to the bottom of the loading and unloading support frame and the outer bottom of the round bar loading rack, respectively. The loading and turning drive device is used to drive the round bar loading rack to rotate 90 degrees from its initial position. The feeding processing unit is used to control the feeding and flipping drive device to control the round bar feeding rack to first accelerate the flipping, and when the round bar feeding rack flips to a preset angle, reduce the flipping speed of the round bar feeding rack until it flips to 90 degrees.

17. The silicon rod cutting system according to claim 16, characterized in that, The feeding and tilting drive device adopts a feeding and tilting hydraulic cylinder; The cylinder body of the loading and unloading support frame is fixed at the bottom of the loading and unloading support frame. The upper end of the guide rod of the loading and unloading support frame is fixed to the outer bottom of the round bar loading frame. The loading and unloading support frame is used to drive the round bar loading frame to rotate 90 degrees from its initial position.

18. The silicon rod cutting system according to claim 12, characterized in that, It also includes a transfer device, which comprises: Loading and unloading clamping frame; The upper gripper assembly and the lower gripper assembly are installed parallel to each other on the same side of the loading and unloading gripper frame; The transfer drive assembly is used to drive the upper gripper assembly to move up and down in the vertical direction relative to the lower gripper assembly, and also to drive the upper gripper assembly and the lower gripper assembly to move up and down synchronously.

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