Crystal bar edge sheet taking mechanism and crystal bar processing system

Abstract

The utility model relates to the field of crystal bar flaw piece recovery, in particular to a crystal bar flaw piece material taking mechanism and a crystal bar processing system.The crystal bar flaw piece material taking mechanism comprises two material taking modules which are arranged in a bilateral symmetry mode, each material taking module comprises a supporting frame and a material receiving unit which are arranged at the bottom, a supporting plate is arranged on each supporting frame, and the two material taking modules are symmetrical; the supporting plate is vertically arranged, and the top end of the supporting plate is a sharp end and can be in direct contact with a crystal bar; a first reference surface and a second reference surface which are perpendicular to each other are established by taking the central axis of the crystal bar as a reference, the crystal bar subjected to squaring comprises a square bar and crystal bar edge pieces on the left side and the right side, the distance between the gravity center of each crystal bar edge piece and the first reference surface is L1, the distance between the tip end of each crystal bar edge piece and the first reference surface is L2, and L1 is larger than L2; and the material receiving unit is obliquely arranged and is used for receiving the poured crystal bar edge skin. Cost and maintenance difficulty can be reduced, stability is guaranteed, edge skins are prevented from being collided in the placing process, and the edge breakage phenomenon is reduced.

Description

Technical Field

[0001] This utility model relates to the field of crystal rod edge recycling, specifically to a crystal rod edge picking mechanism and a crystal rod processing system. Background Technology

[0002] In the crystal ingot processing, especially when the crystal ingot is squared using a crystal ingot squaring machine, an important task is to remove the edge strips (or edge strip material, which is the waste material left after the crystal ingot is cut). After the crystal ingot is squared, the round crystal ingot is divided into a square rod in the center and edge strips on all four sides of the square rod. Then, the clamping mechanism on the squaring machine is released, and the edge strip material removal mechanism is activated to pick up the material and place it in the manual feeding buffer position, completing the edge strip removal action from the equipment end.

[0003] There are currently two main methods for extracting the outer skin:

[0004] (1) Dual-servo clamping and unloading scheme: This scheme uses two servo motors to cooperate in clamping actions to pick up the edge material. Although it has high precision, it has the following disadvantages:

[0005] 1. High cost and complex maintenance.

[0006] 2. When the edge skin is placed in the edge skin buffer slot, it is prone to chipping due to impact.

[0007] (2) Suction Cup Material Removal Method: This method uses a vacuum suction cup to pick up the edge material. However, this method also has significant drawbacks:

[0008] 1. In the mixed environment of water, ash, and mud inside the squaring machine, the suction cups and filter elements are prone to clogging.

[0009] 2. Different specifications of crystal rods will lead to a decrease in the success rate of absorption.

[0010] 3. The same problem exists where the edges of the leather pieces collide with each other after being placed, causing the edges to chip. Utility Model Content

[0011] The purpose of this invention is to provide a crystal rod edge strip feeding mechanism that can reduce costs and maintenance difficulty, while ensuring stability, preventing edge strip collisions during placement, and reducing edge breakage.

[0012] Another objective of this invention is to provide a crystal rod processing system that can reduce costs and maintenance difficulty while ensuring stability, preventing edge collisions during placement, and reducing edge chipping.

[0013] The technical solution of this utility model is implemented as follows:

[0014] A crystal ingot edge-receiving mechanism includes two symmetrically arranged receiving modules. Each receiving module includes a bottom support frame and a receiving unit disposed on the support frame. The space between the two receiving units is used to accommodate the crystal ingot. A support plate is disposed on the support frame. The two support plates are used to jointly support the crystal ingot. Two perpendicular reference planes are established with the central axis of the crystal ingot as a reference, namely a first reference plane and a second reference plane. The two receiving modules are symmetrical about the first reference plane.

[0015] The support plate is vertically arranged and parallel to the second reference plane. The top of the support plate is a sharp point that can directly contact the crystal rod.

[0016] After the crystal rod is squared by the square root process, the squared crystal rod includes a square rod in the middle and crystal rod edge skins on the left and right sides of the square rod. The crystal rod edge skins on both sides are symmetrical about the first reference plane. The distance between the centroid of the crystal rod edge skin and the first reference plane is L1, and the distance between the tip and the first reference plane is L2, satisfying: L1 > L2.

[0017] The receiving unit is tilted to receive the tilted crystal rod edge.

[0018] Furthermore, the receiving unit includes at least two receiving components, all of which are arranged in an arc shape according to the curvature of the crystal ingot edge. Each receiving component includes:

[0019] A fixing plate is inclinedly welded to the support frame, and the distance between the fixing plate and the first reference surface gradually decreases from high to low. Multiple mounting holes are sequentially opened on the fixing plate from top to bottom.

[0020] The rotating body is disposed in the mounting hole and rotatably connected to the fixed plate via a rotating shaft. A buffer layer is provided on the outer side of the rotating body for direct contact with the edge of the tilted crystal rod.

[0021] Furthermore, mounting plates are respectively provided on the upper and lower edges of the mounting hole, and the upper and lower ends of the rotating shaft are rotatably connected to the upper and lower mounting plates respectively.

[0022] Furthermore, the rotating body employs bearings or wheels.

[0023] Furthermore, the receiving unit includes two receiving components, which are symmetrically arranged about the second reference plane.

[0024] Furthermore, the receiving unit also includes a reinforcing plate, which is welded to the support frame, and the two fixing plates of the receiving unit are fixed to the reinforcing plate by welding.

[0025] Furthermore, the distance between the end of the fixing plate closest to the second reference surface and the first reference surface is L3, and the distance between the end of the fixing plate furthest from the second reference surface and the first reference surface is L4, satisfying: L3 > L4.

[0026] Furthermore, the support plate is fixed to the support frame via the base plate, and the support plate and the base plate are an integral structure.

[0027] Furthermore, the upper part of the support plate is a semi-circular structure or an isosceles triangular structure, and the tip of the semi-circular structure or the isosceles triangular structure forms the apex.

[0028] A crystal rod processing system includes the aforementioned crystal rod edge strip picking mechanism.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] This application provides a crystal ingot edge picking mechanism, which uses two symmetrically arranged support plates to support the crystal ingot. After the crystal ingot is squared, symmetrical crystal ingot edge pieces are formed on both sides. Since the top of the support plate is a sharp point, the crystal ingot edge piece is easy to tilt. Moreover, since the center of gravity of the crystal ingot edge piece is farther from the first reference plane than the position of the sharp point (L1>L2), the upper end of the crystal ingot edge piece will tilt towards the corresponding receiving unit. Since the receiving unit is tilted, the tilted crystal ingot edge piece is accepted by the receiving unit. In this way, after the crystal ingot completes the squaring process, the crystal ingot edge piece will automatically tilt due to its center of gravity position, and the receiving component will automatically complete the receiving and picking. Compared with the existing technology, this can reduce costs and maintenance difficulty, while ensuring stability, avoiding collisions during the placement of the edge piece, and reducing edge chipping. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is an isometric view of the crystal rod edge strip picking mechanism of this utility model;

[0033] Figure 2 This is a top view of the crystal rod edge-receiving mechanism of this utility model;

[0034] Figure 3 This is a front view of the crystal rod edge-receiving mechanism of this utility model;

[0035] Figure 4 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0036] Figure 5 This is a schematic diagram of the integrated structure of the support plate, base plate and base of this utility model;

[0037] Figure 6 This is a schematic diagram showing the tilting direction of the crystal rod edge skin of this utility model;

[0038] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention, in which material picking modules are respectively set on the four sides of the square bar.

[0039] In the picture:

[0040] 1-Material receiving module; 101-Material receiving unit; 1011-Material receiving assembly; 10111-Fixing plate; 10112-Mounting plate; 10113-Rotating body; 10114-Buffer layer; 10115-Rotating shaft; 10116-Mounting hole;

[0041] 102-Support frame; 103-Support plate; 1031-Tip; 104-Base plate; 105-Reinforcing plate; 106-Base;

[0042] 2-First datum plane; 3-Second datum plane;

[0043] 4-Crystal rod; 401-Square rod; 402-Crystal rod edge skin. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0051] Example 1

[0052] During the processing of crystal ingot 4, a crystal ingot 4 squaring machine is used to square the crystal ingot 4. The crystal ingot 4 squaring machine is a special device used to process single crystal silicon rods or other crystal materials. It is mainly used to cut cylindrical crystal ingots 4 into square or other specific shapes of ingots. This process is an important link in the photovoltaic industry and semiconductor manufacturing because many subsequent processes (such as slicing, polishing, etc.) require square or rectangular ingots as raw materials.

[0053] In this scheme, the squaring machine cuts the crystal rod 4 into square rods 401. The divided crystal rod 4 includes the square rod 401 located in the center and the edge skins located on the four sides of the square rod 401.

[0054] Reference Figures 1-6This embodiment provides a crystal rod edge strip picking mechanism, including two picking modules 1 arranged symmetrically on the left and right. Each picking module 1 includes a bottom support frame 102 and a receiving unit 101 disposed on the support frame 102. The space between the two receiving units 101 is used to accommodate the crystal rod 4. A support plate 103 is disposed on the support frame 102. The two support plates 103 are used to jointly support the crystal rod 4. Two vertical and perpendicular reference planes are established with the central axis of the crystal rod 4 as a reference, namely the first reference plane 2 and the second reference plane 3. The two picking modules 1 are symmetrical about the first reference plane 2.

[0055] The support plate 103 is vertically arranged and parallel to the second reference plane 3. The top end of the support plate 103 is a tip 1031 that can directly contact the crystal rod 4.

[0056] After the crystal rod 4 is squared, it is divided into a square rod 401 in the middle and crystal rod edge skins 402 on the left and right sides of the square rod 401. The crystal rod edge skins 402 on both sides are symmetrical about the first reference plane 2. The distance between the center of gravity of the crystal rod edge skin 402 and the first reference plane 2 is L1, and the distance between the tip 1031 and the first reference plane 2 is L2, satisfying: L1>L2. Therefore, the center of gravity of the crystal rod edge skin 402 is farther away from the first reference plane 2 than the position of the tip 1031. Therefore, when the crystal rod 4 is squared, the upper part of the crystal rod edge skin 402 will automatically tilt toward the side of the corresponding material receiving module 1. And because the receiving unit 101 is tilted, it can receive the tilted crystal rod edge skin 402.

[0057] Specifically, the receiving unit 101 includes at least two receiving components 1011, all of which are arranged in an arc shape according to the curvature of the crystal ingot edge 402. Each receiving component 1011 includes:

[0058] A fixing plate 10111 is inclinedly welded to the support frame 102, and the distance between the fixing plate 10111 and the first reference surface 2 gradually decreases from high to low. That is, the upper part of the fixing plate 10111 is farther away from the first reference surface 2 than its lower part and is inclined. A plurality of mounting holes 10116 are sequentially opened on the fixing plate 10111 from top to bottom.

[0059] The rotating body 10113 is disposed in the mounting hole 10116 and is rotatably connected to the fixing plate 10111 via the rotating shaft 10115. The buffer layer 10114 disposed on the outer side of the rotating body 10113 is used to directly contact the tilted crystal rod edge 402. When the crystal rod edge 402 tilts towards the receiving assembly 1011, the buffer layer 10114 contacts the crystal rod edge 402 first and buffers it, thereby protecting the crystal rod edge 402.

[0060] To facilitate the installation of the rotating body 10113 and the rotating shaft 10115, mounting plates 10112 are respectively provided on the upper and lower edges of the mounting hole 10116, and the upper and lower ends of the rotating shaft 10115 are rotatably connected to the upper and lower mounting plates 10112 respectively.

[0061] The rotating body 10113 can be made of bearings or rollers, and a buffer layer 10114 can be wrapped around the outside of the bearings or rollers. The buffer layer 10114 can be made of silicone or rubber.

[0062] Preferably, the receiving unit 101 includes two receiving components 1011, which are symmetrically arranged about the second reference plane 3, such as... Figure 2 As shown, only two receiving components 1011 are needed to receive the crystal rod edge skin 402.

[0063] The receiving unit 101 also includes a reinforcing plate 105, which is welded to the support frame 102. At the same time, the two fixing plates 10111 of the receiving unit 101 are fixed to the reinforcing plate 105 by welding.

[0064] The distance between the end of the fixing plate 10111 closest to the second reference surface 3 and the first reference surface 2 is L3, and the distance between the end of the fixing plate 10111 furthest from the second reference surface 3 and the first reference surface 2 is L4, satisfying L3 > L4. The fixing plate 10111 is also inclined relative to the second reference surface 3 to facilitate better receiving of the crystal ingot edge 402.

[0065] Preferably, the reinforcing plate 105 is arranged parallel to the second reference surface 3 and is located in the middle of the two receiving components 1011, so that the force is more uniform and the structural stability is improved.

[0066] Preferably, a base plate 104 is provided at the bottom of the support plate 103, and a base 106 is provided at the bottom of the base plate 104. The support plate 103, the base plate 104, and the base 106 are an integral structure. An installation groove can be opened on the side of the support frame 102 near the first reference surface 2. The base 106 is correspondingly inserted into the installation groove and fits against the inner wall of the installation groove. Then, the base plate 104 is inserted into the top of the support frame 102, and the base 106 is fixed to the support frame 102 by bolts, so as to facilitate the disassembly and removal of the integral structure of the support plate 103, the base plate 104, and the base 106.

[0067] Preferably, the upper part of the support plate 103 is a semi-circular structure or an isosceles triangular structure, and the tip of the semi-circular structure or the isosceles triangular structure forms the tip 1031.

[0068] This application provides a crystal ingot edge strip picking mechanism, which uses two symmetrically arranged support plates 103 to jointly support the crystal ingot 4. After the crystal ingot 4 is squared, it forms symmetrical crystal ingot edge strips 402 on both sides. Since the top of the support plate 103 is a pointed tip 1031, the crystal ingot edge strip 402 is easy to tip over. Moreover, since the center of gravity of the crystal ingot edge strip 402 is farther from the position of the pointed tip 1031 than the first reference plane 2 (i.e., L1>L2), the upper end of the crystal ingot edge strip 402 will tilt towards the corresponding receiving unit 101. Since the receiving unit 101 is tilted, the tilted crystal ingot edge strip 402 is accepted by the receiving unit 101. In this way, after the crystal ingot 4 completes the squaring process, the crystal ingot edge strip 402 will automatically tip over due to its center of gravity position, and the receiving component 1011 will also automatically complete the receiving and picking. Compared with the existing technology, this can reduce costs and maintenance difficulty, while ensuring stability, avoiding collisions of the edge strip during placement, and reducing edge breakage.

[0069] This solution utilizes the characteristics of the edge skin structure. Because the center of gravity of the edge skin is further away from the first reference plane 2 relative to the tip 1031 of the support plate 103, after the crystal ingot 4 is squared, the upper part of the edge skin automatically tilts towards the material handling module 1. Figure 6 .

[0070] In this embodiment, the angle between the fixed plate 10111 and the horizontal plane is in the range of 75° to 85°, and the hardness of the buffer layer 10114 material on the rotating body 10113 is much smaller than the hardness of the edge skin, resulting in a small impact load and ensuring the integrity of the edge skin.

[0071] This solution has the following advantages:

[0072] 1. Reduce the difficulty and cost of maintaining the material handling structure, while also ensuring stability and compatibility.

[0073] 2. To resolve the edge chipping phenomenon caused by the collision between the edge skins after the equipment edge skins are placed.

[0074] Example 2

[0075] This embodiment provides a crystal ingot edge scraping mechanism, including two scraping modules 1 arranged symmetrically from left to right, and two scraping modules 1 arranged symmetrically from front to back (e.g., Figure 7 As shown, the edges 402 are respectively set to correspond to the four sides of the crystal rod 4. When the crystal rod 4 is squared, the four sides of the crystal rod edge 402 are exactly received by the four sides of the material picking module 1, realizing material picking.

[0076] Example 3

[0077] A crystal rod processing system includes the aforementioned crystal rod edge strip picking mechanism.

[0078] The beneficial effects of the technical solution of this utility model are:

[0079] 1. The angle between the fixed plate 10111 and the horizontal plane is in the range of 75° to 85°, and the hardness of the buffer layer 10114 material on the rotating body 10113 is much smaller than that of the edge skin, resulting in a small impact load and ensuring the integrity of the edge skin.

[0080] 2. Since the edges were tilted at an angle during placement, the condition inside the slot has been confirmed, and there is no possibility of edge chipping caused by collisions between the edges.

[0081] 3. The equipment is simple to operate and easy to maintain.

[0082] 4. The material receiving mechanism is purely mechanical, avoiding the influence of water and dust environments and improving equipment stability.

[0083] 5. It has strong material handling compatibility and can be used for crystal rods of different sizes and lengths from 10 to 12 inches, all of which can be handled under the same parameter conditions.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0085] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A crystal rod edge scraping mechanism, characterized in that, The device includes two symmetrically arranged material handling modules (1). Each material handling module (1) includes a bottom support frame (102) and a receiving unit (101) on the support frame (102). The space between the two receiving units (101) is used to accommodate the crystal rod (4). A support plate (103) is provided on the support frame (102). The two support plates (103) are used to support the crystal rod (4) together. Two perpendicular reference planes are established with the central axis of the crystal rod (4) as the reference. These are the first reference plane (2) and the second reference plane (3). The two material handling modules (1) are symmetrical about the first reference plane (2). The support plate (103) is vertically arranged and parallel to the second reference plane (3). The top of the support plate (103) is a tip (1031) and can directly contact the crystal rod (4). The crystal rod (4) is divided after the square root process. The divided crystal rod (4) includes a square rod (401) in the middle and crystal rod edge skins (402) on the left and right sides of the square rod (401). The crystal rod edge skins (402) on both sides are symmetrical about the first reference plane (2). The distance between the centroid of the crystal rod edge skin (402) and the first reference plane (2) is L1, and the distance between the tip (1031) and the first reference plane (2) is L2, satisfying: L1 > L2. The receiving unit (101) is inclined and is used to receive the tilted crystal rod edge skin (402).

2. The crystal rod edge scraping mechanism according to claim 1, characterized in that, The receiving unit (101) includes at least two receiving components (1011), all of which are arranged in an arc shape according to the curvature of the crystal rod edge (402). Each receiving component (1011) includes: A fixing plate (10111) is inclinedly welded to the support frame (102), and the distance between the fixing plate (10111) and the first reference surface (2) gradually decreases from high to low. Multiple mounting holes (10116) are sequentially opened on the fixing plate (10111) from top to bottom. A rotating body (10113) is disposed in the mounting hole (10116) and is rotatably connected to the fixing plate (10111) via a rotating shaft (10115). A buffer layer (10114) is provided on the outer side of the rotating body (10113) for direct contact with the tilted crystal rod edge (402).

3. The crystal rod edge scraping mechanism according to claim 2, characterized in that, Mounting plates (10112) are respectively provided on the upper and lower edges of the mounting hole (10116), and the upper and lower ends of the rotating shaft (10115) are rotatably connected to the upper and lower mounting plates (10112) respectively.

4. The crystal rod edge scraping mechanism according to claim 2, characterized in that, The rotating body (10113) uses a bearing or a rotating wheel.

5. The crystal rod edge scraping mechanism according to claim 2, characterized in that, The receiving unit (101) includes two receiving components (1011), which are symmetrically arranged about the second reference plane (3).

6. The crystal rod edge scraping mechanism according to claim 5, characterized in that, The receiving unit (101) also includes a reinforcing plate (105), which is welded to the support frame (102). At the same time, the two fixing plates (10111) of the receiving unit (101) are fixed to the reinforcing plate (105) by welding.

7. The crystal rod edge scraping mechanism according to claim 5, characterized in that, The distance between the end of the fixing plate (10111) closest to the second reference surface (3) and the first reference surface (2) is L3, and the distance between the end of the fixing plate (10111) furthest from the second reference surface (3) and the first reference surface (2) is L4, satisfying: L3 > L4.

8. The crystal rod edge scraping mechanism according to claim 1, characterized in that, The support plate (103) is fixed to the support frame (102) by the base plate (104), and the support plate (103) and the base plate (104) are an integral structure.

9. The crystal rod edge scraping mechanism according to claim 1, characterized in that, The upper part of the support plate (103) is a semi-circular structure or an isosceles triangular structure, and the top of the semi-circular structure or the isosceles triangular structure forms the tip (1031).

10. A crystal rod processing system, characterized in that, Includes the crystal rod edge scraping mechanism as described in any one of claims 1-9.

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