Efficient polycrystalline silicon cast ingot squaring device

Abstract

The utility model relates to the technical field of polycrystalline silicon processing, and discloses an efficient polycrystalline silicon cast ingot squaring device which comprises a base and a processing table fixed above the base, and further comprises a groove formed in the upper surface of the processing table, and a placing table is arranged at the top of the processing table and located on the right side of the groove; a cavity is formed in the position, located below the containing table, of the interior of the machining table. A transposition structure used for adjusting the position of polycrystalline silicon is arranged in the cavity. The mounting box is fixed on the right side of the processing table; the polycrystalline silicon cutting device has a stable fixing function, when polycrystalline silicon is cut, the polycrystalline silicon can be stably clamped and fixed, the polycrystalline silicon is prevented from moving, the fixing effect on the polycrystalline silicon is improved, the polycrystalline silicon cutting device further has a reinforcing function, the position of the polycrystalline silicon can be reinforced when the polycrystalline silicon is cut, and the polycrystalline silicon cutting efficiency is improved. The cutting stability of the polycrystalline silicon is greatly improved, and the processing quality of the polycrystalline silicon is improved.

Description

Technical Field

[0001] This utility model relates to the field of polycrystalline silicon processing technology, specifically to a high-efficiency polycrystalline silicon ingot squaring device. Background Technology

[0002] Polycrystalline silicon is a form of elemental silicon. When molten elemental silicon solidifies under supercooled conditions, silicon atoms arrange themselves into many crystal nuclei in the form of a diamond lattice. If these crystal nuclei grow into grains with different crystal orientations, these grains combine to crystallize into polycrystalline silicon. Polycrystalline silicon is currently the most important material in the photovoltaic industry. The industrial chain involves the preparation of solar-grade polycrystalline silicon, ingot casting, squaring, slicing, cell production, and module production. The squaring process involves cutting large square ingots into smaller square ingots using multi-wire cutting technology.

[0003] A search revealed a squaring device for facilitating the positioning of polycrystalline silicon ingots, application number CN202021728782.8. This device uses a suction cup to adsorb and fix the polycrystalline silicon. However, polycrystalline silicon is composed of multiple grains with grain boundaries between them, resulting in an uneven surface. Suction cups are generally used to adsorb onto smooth surfaces and are not suitable for rough surfaces. When the suction cup adsorbs polycrystalline silicon, it cannot effectively fix the polycrystalline silicon. When cutting the polycrystalline silicon, it is easy for the polycrystalline silicon to move, reducing the squaring quality. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency polycrystalline silicon ingot squaring device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency polycrystalline silicon ingot squaring device, comprising a base and a processing table fixed above the base, and further comprising:

[0006] A groove is formed on the upper surface of the processing table. A placement platform is provided on the top of the processing table and on the right side of the groove. A cavity is formed inside the processing table and below the placement platform. A transposition structure for adjusting the position of polysilicon is provided inside the cavity.

[0007] A mounting box is fixed to the right side of the processing table. The mounting box has an adjustment structure inside. The front and rear sides of the top of the mounting box are provided with through slots. The front and rear sides of the top of the processing table are provided with clamping plates. A top plate is fixed above the base. A hydraulic cylinder is fixed to the left side of the bottom of the top plate. A mounting bracket is bolted to the bottom end of the output shaft of the hydraulic cylinder. A cutting device is fixed below the mounting bracket.

[0008] Preferably, the transposition structure includes a first motor, a first bevel gear, a second bevel gear, and a rotating rod. The first motor is fixed to the left side of the inner wall of the cavity, the first bevel gear is fixed to the right end of the output shaft of the first motor, the second bevel gear is rotatably connected to the middle of the bottom of the inner wall of the cavity, and the first bevel gear and the second bevel gear mesh with each other. The diameter of the first bevel gear is smaller than the diameter of the second bevel gear. The rotating rod is fixed to the top of the second bevel gear, and the top end of the rotating rod passes through the processing table and is fixedly connected to the bottom of the placement table.

[0009] Preferably, the adjustment structure includes a threaded rod rotatably connected inside the mounting box, a second motor fixed to the rear side of the mounting box, movable blocks threadedly connected to the front and rear sides of the threaded rod surface, and a connecting plate fixed to the top of the movable blocks. The output shaft of the second motor passes through the interior of the mounting box and is fixedly connected to the rear end of the threaded rod. The thread directions on the front and rear sides of the threaded rod surface are opposite. The top of the connecting plate passes through a through slot and extends to the outside of the mounting box. The top of the connecting plate is fixedly connected to the bottom of the clamping plate.

[0010] Preferably, the bottom of the inner wall of the mounting box has limit grooves on both the front and rear sides, and the bottom of the movable block is fixed with a limit block that is slidably connected to the inner wall of the limit groove.

[0011] Preferably, the reinforcing structure includes a lifting plate, a spring, and a pressing plate. The lifting plate is fixed above the inner wall of the mounting frame, the spring is fixed on the left and right sides of the bottom of the lifting plate, and the pressing plate is fixed at the bottom end of the spring, with the height of the pressing plate lower than the height of the cutting equipment.

[0012] Preferably, anti-slip pads are adhered to the opposing surfaces of the clamping plates. The anti-slip pads are made of rubber, and the opposing surfaces of the anti-slip pads are provided with anti-slip textures.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention features a stable fixing function, which can stably clamp and fix the polycrystalline silicon during cutting, preventing it from moving and improving the fixing effect. In addition, the device also has a reinforcement function, which can reinforce the position of the polycrystalline silicon during cutting, greatly improving the cutting stability of the polycrystalline silicon and improving the processing quality of the polycrystalline silicon. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the processing table in this utility model;

[0017] Figure 3 This is a cross-sectional view of the mounting box in this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the reinforcement structure in this utility model.

[0019] In the diagram: 1. Base; 2. Processing table; 3. Groove; 4. Placement table; 5. Cavity; 6. Repositioning structure; 61. First motor; 62. First bevel gear; 63. Second bevel gear; 64. Rotating rod; 7. Anti-slip pad; 8. Mounting box; 9. Adjustment structure; 91. Threaded rod; 92. Second motor; 93. Movable block; 94. Connecting plate; 10. Through groove; 11. Clamping plate; 12. Limiting block; 13. Top plate; 14. Hydraulic cylinder; 15. Mounting frame; 16. Cutting equipment; 17. Reinforcing structure; 171. Lifting plate; 172. Spring; 173. Pressing plate; 18. Limiting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 As shown, a high-efficiency polycrystalline silicon ingot squaring device includes a base 1, a processing table 2 fixed to the top of the base 1, a groove 3 formed on the surface above the processing table 2, a placement table 4 set on the top of the processing table 2 and to the right of the groove 3, a cavity 5 formed inside the processing table 2 and below the placement table 4, a shifting structure 6 set inside the cavity 5, a mounting box 8 fixed to the right of the processing table 2, an adjusting structure 9 set inside the mounting box 8, through slots 10 formed on the front and rear sides of the top of the mounting box 8, clamping plates 11 set on the front and rear sides above the processing table 2, the bottom height of the clamping plates 11 being the same as the top height of the placement table 4, a top plate 13 fixed to the top of the base 1, and a hydraulic cylinder 14 fixed to the left side of the bottom of the top plate 13, a mounting bracket 15 bolted to the bottom end of the output shaft of the hydraulic cylinder 14, and a cutting device 16 fixed below the mounting bracket 15, the position of the cutting device 16 corresponding to the position of the groove 3 below.

[0022] The repositioning structure 6 includes a first motor 61, a first bevel gear 62, a second bevel gear 63, and a rotating rod 64. The first motor 61 is fixed to the left side of the inner wall of the cavity 5. The first bevel gear 62 is fixed to the right end of the output shaft of the first motor 61. The second bevel gear 63 is rotatably connected to the middle of the bottom of the inner wall of the cavity 5, and the first bevel gear 62 and the second bevel gear 63 mesh with each other. The diameter of the first bevel gear 62 is smaller than the diameter of the second bevel gear 63. The rotating rod 64 is fixed to the top of the second bevel gear 63, and the top end of the rotating rod 64 passes through the processing table 2 and is fixedly connected to the bottom of the placement table 4. After one side of the polycrystalline silicon is cut, the operator can open the first motor 61 below, so that the output shaft of the first motor 61 drives the first bevel gear 62 to rotate. Since the diameter of the first bevel gear 62 is smaller than the diameter of the second bevel gear 63, the second bevel gear 63 rotates slowly, so that the rotating rod 64 drives the placement table 4 above to rotate slowly, and the polycrystalline silicon above the placement table 4 is repositioned.

[0023] The adjustment structure 9 includes a threaded rod 91, a second motor 92, a movable block 93, and a connecting plate 94. The threaded rod 91 is rotatably connected inside the mounting box 8. The second motor 92 is fixed to the rear side of the mounting box 8, and its output shaft passes through the interior of the mounting box 8 and is fixedly connected to the rear end of the threaded rod 91. The movable block 93 is threadedly connected to the front and rear sides of the surface of the threaded rod 91, and the thread directions on the front and rear sides of the surface of the threaded rod 91 are opposite. The connecting plate 94 is fixed to the top of the movable block 93, and its top end passes through the through slot 10 and extends to the outside of the mounting box 8. The top of the connecting plate 94 is fixedly connected to the bottom of the clamping plate 11. Limiting grooves 18 are provided on both the front and rear sides of the bottom of the inner wall of the 8. A limiting block 12 is fixed at the bottom of the movable block 93. The bottom of the limiting block 12 extends into the interior of the limiting groove 18 and slides in connection with the inner wall of the limiting groove 18. Before the cutting equipment 16 performs the cutting operation, the operator turns on the second motor 92, which causes the threaded rod 91 to rotate. The movable blocks 93 on the front and rear sides of the surface of the threaded rod 91 can then move towards each other. The movable block 93 drives the clamping plate 11 to move toward the polycrystalline silicon through the upper connecting plate 94. The lower limiting block 12 can limit the movable block 93, improve the stability of the movable block 93 when it moves, and thus clamp and fix the polycrystalline silicon.

[0024] The reinforcement structure 17 includes a lifting plate 171, a spring 172, and a pressing plate 173. The lifting plate 171 is fixed above the inner wall of the mounting frame 15. The spring 172 is fixed on the left and right sides of the bottom of the lifting plate 171. The pressing plate 173 is fixed at the bottom end of the spring 172, and the height of the pressing plate 173 is lower than the height of the cutting equipment 16. When the hydraulic cylinder 14 pushes the cutting equipment 16 below to descend, the pressing plate 173 also falls. The pressing plate 173 will first contact the top of the polycrystalline silicon. By pressing the top of the polycrystalline silicon with the pressing plate 173, the polycrystalline silicon is reinforced, thereby improving the stability of polycrystalline silicon during cutting.

[0025] Anti-slip pads 7 are adhered to the surfaces of the clamping plate 11 on both sides. The anti-slip pads 7 are made of rubber and have anti-slip textures on both sides. When the clamping plate 11 clamps the polysilicon surface, the anti-slip pads 7 can improve the fixing effect on the polysilicon and further improve the stability during polysilicon cutting.

[0026] Working principle: When the operator needs to cut polycrystalline silicon, the operator places the polycrystalline silicon to be cut on the placement table 4. Then, the operator turns on the second motor 92, which causes the connecting plate 94 to move the clamping plates 11 on both sides toward each other, clamping and fixing the polycrystalline silicon. After fixing, the operator can turn on the upper hydraulic cylinder 14, causing the output shaft of the hydraulic cylinder 14 to push the cutting device 16 down. During the descent, the operator turns on the cutting device 16, and the pressing plate 173 presses down on the polycrystalline silicon on the surface of the placement table 4, thereby further reinforcing the polycrystalline silicon. The cutting device 16 contacts the polycrystalline silicon to perform the cutting operation. After one side of the polycrystalline silicon is cut, the second motor 92 is turned on again to control the clamping plate 11 to move away from the surface of the polycrystalline silicon. Then, the operator turns on the first motor 61, which causes the placement table 4 to rotate the polycrystalline silicon above it. After the polycrystalline silicon is adjusted to the other side, the clamping plate 11 moves towards the other side again to fix the polycrystalline silicon. After the fixation is completed, the cutting device 16 falls again to cut the other side of the polycrystalline silicon. The above operation is repeated. After the four sides of the polycrystalline silicon are cut, the operator can remove the polycrystalline silicon after it has been squared.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency polycrystalline silicon ingot squaring device, comprising a base (1) and a processing table (2) fixed above the base (1) and a reinforcing structure (17), characterized in that, Also includes: A groove (3) is formed on the upper surface of the processing table (2). A placement platform (4) is provided on the top of the processing table (2) and on the right side of the groove (3). A cavity (5) is formed inside the processing table (2) and below the placement platform (4). A transposition structure (6) for adjusting the position of polysilicon is provided inside the cavity (5). A mounting box (8) is fixed on the right side of the processing table (2). The mounting box (8) is equipped with an adjustment structure (9). The mounting box (8) has through slots (10) on both the front and back sides of the top. The processing table (2) has clamping plates (11) on both the front and back sides. A top plate (13) is fixed on the top of the base (1). A hydraulic cylinder (14) is fixed on the left side of the bottom of the top plate (13). A mounting bracket (15) is bolted to the bottom of the output shaft of the hydraulic cylinder (14). A cutting device (16) is fixed below the mounting bracket (15).

2. The high-efficiency polycrystalline silicon ingot squaring device according to claim 1, characterized in that: The transposition structure (6) includes a first motor (61), a first bevel gear (62), a second bevel gear (63), and a rotating rod (64). The first motor (61) is fixed on the left side of the inner wall of the cavity (5). The first bevel gear (62) is fixed on the right end of the output shaft of the first motor (61). The second bevel gear (63) is rotatably connected to the middle of the bottom of the inner wall of the cavity (5). The first bevel gear (62) and the second bevel gear (63) mesh with each other. The diameter of the first bevel gear (62) is smaller than the diameter of the second bevel gear (63). The rotating rod (64) is fixed on the top of the second bevel gear (63). The top end of the rotating rod (64) passes through the processing table (2) and is fixedly connected to the bottom of the placement table (4).

3. The high-efficiency polycrystalline silicon ingot squaring device according to claim 1, characterized in that: The adjustment structure (9) includes a threaded rod (91) rotatably connected inside the mounting box (8), a second motor (92) fixed to the rear side of the mounting box (8), movable blocks (93) threadedly connected to the front and rear sides of the surface of the threaded rod (91), and a connecting plate (94) fixed to the top of the movable blocks (93). The output shaft of the second motor (92) passes through the interior of the mounting box (8) and is fixedly connected to the rear end of the threaded rod (91). The thread directions on the front and rear sides of the surface of the threaded rod (91) are opposite. The top of the connecting plate (94) passes through the through groove (10) and extends to the outside of the mounting box (8). The top of the connecting plate (94) is fixedly connected to the bottom of the clamping plate (11).

4. The high-efficiency polycrystalline silicon ingot squaring device according to claim 3, characterized in that: Limiting grooves (18) are provided on both the front and rear sides of the bottom of the inner wall of the mounting box (8), and a limiting block (12) is fixed at the bottom of the movable block (93) and is slidably connected to the inner wall of the limiting groove (18).

5. The high-efficiency polycrystalline silicon ingot squaring device according to claim 1, characterized in that: The reinforcement structure (17) includes a lifting plate (171), a spring (172) and a pressing plate (173). The lifting plate (171) is fixed above the inner wall of the mounting frame (15). The spring (172) is fixed on the left and right sides of the bottom of the lifting plate (171). The pressing plate (173) is fixed at the bottom end of the spring (172), and the height of the pressing plate (173) is lower than the height of the cutting device (16).

6. The high-efficiency polycrystalline silicon ingot squaring device according to claim 1, characterized in that: The surfaces of the clamping plates (11) facing each other are covered with anti-slip pads (7), which are made of rubber and have anti-slip textures on their surfaces.

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