A polysilicon squaring production line

Abstract

The present invention relates to a polysilicon squaring production line, including a silicon material platform positioning mechanism, a strip material cutting mechanism, a strip material transfer mechanism, a strip material transport mechanism, a block material clamping mechanism and a block material cutting mechanism; the strip material cutting mechanism is arranged on one side of the silicon material platform positioning mechanism along the length direction of the silicon material, and the strip material transfer mechanism is used to clamp the strip material on the silicon material platform positioning mechanism to the transfer platform; the strip material transport mechanism is arranged on one side of the strip material transfer mechanism along the length direction of the silicon material, the block material clamping mechanism is arranged on one side of the strip material transport mechanism along the width direction of the silicon material, and the block material cutting mechanism is arranged above the block material clamping mechanism. Different from the prior art, the present invention solves the problem of a linear production line being too long. The silicon material is first cut into strips, then transferred, and the silicon material is cut into blocks. This does not need to be completed on a straight line production line, which is convenient for use when the site length is insufficient.

Description

Technical Field

[0001] The invention relates to the technical field of polysilicon ingot processing, and in particular to a polysilicon squaring production line. Background Art

[0002] Currently, the square cutting of polysilicon ingots is generally carried out using a long wire mesh cutting structure. The long wire mesh has a great disadvantage, that is, it is extremely difficult to replace it after the wire breaks. It is not only time-consuming, but also due to the harsh working conditions, the workload of the operators is very high.

[0003] The simple method of fixing the polysilicon ingot is generally to use glue for bonding, but it is troublesome to unload after cutting, and it is not conducive to the automatic turnover of the second process; or, after the polysilicon ingot is leveled, it is locked by the weight of the polysilicon ingot itself, but this method has the following defects: the upper and lower surfaces of the polysilicon ingot are not very flat, and the padding is aimed at the entire ingot, and the strip blocks after cutting may not all have pads, which will cause the unpositioned part to collapse due to the release of stress after cutting, or because the fixation is not firm, it will shake at the moment of cutting and cause the wire to break.

[0004] More information related to the above technical solution can also be found in the following documents:

[0005] In a Chinese invention patent with application publication number CN 110497543 A, a silicon ingot squaring machine and a silicon ingot squaring method are disclosed, wherein the silicon ingot squaring machine includes a first cutting device and a second cutting device, wherein the first cutting device is used to perform a first cutting operation on the polycrystalline silicon ingot according to the crystal orientation of the polycrystalline silicon ingot to form a first silicon cube, and the second cutting device is used to perform a second cutting operation on the first silicon cube according to the crystal orientation of the first silicon cube to form a second silicon cube.

[0006] In the Chinese utility model with authorization announcement number CN 208375639 U, a polysilicon square machine conveying device is disclosed, including a loading trolley, a cutting platform, a clamping mechanism and a unloading trolley. The loading trolley and the unloading trolley are installed on the guide rail and can move on the guide rail; the clamping mechanism is two and symmetrically arranged on both sides of the guide rail; the cutting platform is arranged between the two clamping mechanisms; a plurality of clamping claws are arranged on the clamping mechanism, and a cylinder is connected under each clamping claw; and side skin clamping plates I and II are also arranged on both sides of the clamping mechanism.

[0007] In the process of implementing the present invention, the inventors found that the prior art has the following problems:

[0008] In the prior art, a linear production line is used to cut silicon ingots into small silicon cubes. However, a linear production line is too long and is not suitable when there is not enough space. Summary of the invention

[0009] Therefore, it is necessary to provide a polysilicon squaring production line to solve the technical problem in the prior art that a linear production line is too long and is not applicable when there is insufficient space.

[0010] To achieve the above-mentioned purpose, the inventor provides a polysilicon squaring production line, including a silicon material table positioning mechanism, a strip material cutting mechanism, a strip material transfer mechanism, a strip material transport mechanism, a block material clamping mechanism and a block material cutting mechanism;

[0011] The silicon material stage positioning mechanism is used to clamp the silicon material along the length direction of the silicon material, and the strip material cutting mechanism is arranged on one side of the silicon material stage positioning mechanism along the length direction of the silicon material, and the strip material cutting mechanism is used to cut the silicon material into strip materials along the length direction of the silicon material;

[0012] The strip material transfer mechanism comprises a transfer platform, which is arranged on one side of the silicon material platform positioning mechanism along the width direction of the silicon material, and the strip material transfer mechanism is used to clamp the strip material on the silicon material platform positioning mechanism to the transfer platform;

[0013] The strip material transport mechanism is arranged on one side of the strip material transfer mechanism along the length direction of the silicon material, the block material clamping mechanism is arranged on one side of the strip material transport mechanism along the width direction of the silicon material, and the block material cutting mechanism is arranged above the block material clamping mechanism. The strip material transport mechanism is used to transport the strip material to the block material clamping mechanism, the block material clamping mechanism is used to clamp the strip material, and the block material cutting mechanism is used to cut the strip material into blocks.

[0014] Different from the prior art, the above technical solution uses a silicon material table positioning mechanism to clamp the silicon material along the length direction of the silicon material, a strip cutting mechanism is arranged on one side of the silicon material table positioning mechanism along the length direction of the silicon material, a transfer platform is arranged on one side of the silicon material table positioning mechanism along the width direction of the silicon material, a strip transport mechanism is arranged on one side of the strip transport mechanism along the length direction of the silicon material, and a block clamping mechanism is arranged on one side of the strip transport mechanism along the width direction of the silicon material; in this way, the problem of a linear production line being too long is solved. The silicon material is first cut into strips and then transported, and then cut into blocks. This does not need to be completed on a straight line production line, which is convenient for use when the site is not long enough.

[0015] As an embodiment of the present invention, the silicon material table positioning mechanism includes a positioning frame and a fixed clamping assembly and a movable clamping assembly arranged on the positioning frame, the fixed clamping assembly is arranged at one end of the positioning frame, and the movable clamping assembly is arranged at the other end of the positioning frame, and more than two fixed clamping assemblies and more than two movable clamping assemblies are arranged along the width direction of the silicon material, and the movable clamping assemblies correspond to the fixed clamping assemblies one by one and cooperate with each other to clamp the silicon material.

[0016] In this way, one fixed clamping component is provided with one movable clamping component, and after the silicon material is cut, two or more fixed clamping components and two or more movable clamping components can be provided respectively to clamp the cut long silicon material. By using the one-to-one corresponding fixed clamping components and movable clamping components, the cut silicon material is clamped and fixed separately, which can effectively reduce the vibration of the silicon material and reduce the breakage caused by edge collapse and shaking.

[0017] As an embodiment of the present invention, the movable clamping assembly includes a movable seat plate and a movable clamping block, the movable clamping block is hinged on the movable seat plate, the movable clamping block includes a first clamping portion and a second clamping portion, the first clamping portion is located at the top of the movable clamping block, the second clamping portion is located at the bottom of the movable clamping block, the first clamping portion is a first plane for contacting the silicon material, and the second clamping portion is a second plane for contacting the silicon material.

[0018] In this way, during the production process, the silicon material is as close to the movable clamping block as possible, and the movable clamping block contacts the silicon material through the first clamping part and the second clamping part. Since the movable clamping block is hinged on the movable seat plate, the movable clamping block can automatically adjust the positions of the first clamping part and the second clamping part, so that the first clamping part is as close to the top of the silicon material as possible, and the second clamping part is as close to the bottom of the silicon material as possible, so that the silicon material is evenly stressed when clamped, which can effectively reduce the vibration of the silicon material and reduce the breakage caused by edge collapse and shaking. The first clamping part, the second clamping part and the silicon material are in surface contact, so that the first clamping part and the second clamping part are evenly stressed.

[0019] As an embodiment of the present invention, the strip material cutting mechanism comprises a cutting frame and two or more cutting operation components arranged on the cutting frame;

[0020] The cutting operation component includes two cutting units and a cutting drive unit. The cutting unit includes a cutting line. The cutting lines of the two cutting units are arranged side by side, and the spacing between the cutting lines of the two cutting units is a preset value. The cutting drive unit is arranged along the width direction of the silicon material and is used to drive the cutting line to cut the silicon material into long strips along the length direction of the silicon material. The spacing between the cutting lines of adjacent cutting operation components is also a preset value.

[0021] In this way, the spacing between the cutting lines of the two cutting units is a preset value, and the spacing between the cutting lines of adjacent cutting operation components is also a preset value. When more than two cutting operation components cut at the same time, the width of the long silicon strips cut off is the same, and the size of the long silicon strips can be unified to facilitate subsequent production.

[0022] As an embodiment of the present invention, the strip material transfer mechanism further comprises a transfer frame and a clamping assembly, wherein the clamping assembly is arranged on the transfer frame, and the clamping assembly is used to clamp the processed strip material onto the transfer platform, and the transfer platform fixes the strip material;

[0023] The clamping assembly includes a first slider, a first guide rail, a lower fork and a clamping drive unit. The clamping drive unit and the first guide rail are arranged on the transfer frame. The first slider is slidably arranged on the first guide rail, and the lower fork is arranged on the first slider. The clamping drive unit is used to drive the first slider to slide on the first guide rail to drive the lower fork to clamp the strip material.

[0024] In this way, the lower fork is driven by the clamping drive unit to extend under the strip material, and the strip material is inserted, so that the clamping component can transfer the strip material conveniently.

[0025] As an embodiment of the present invention, the strip material transport mechanism includes a support frame and a hoisting assembly, wherein the support frame is arranged on one side of the transfer platform, and the hoisting assembly is arranged on the support frame, and the hoisting assembly is used to hoist the strip material on the transfer platform to a desired position;

[0026] The hoisting assembly includes a hoisting drive unit and a hoisting assembly. A second guide rail is provided on the support frame. The hoisting assembly can slide relatively along the extension direction of the second guide rail. The hoisting drive unit is used to drive the hoisting assembly to slide relatively along the extension direction of the second guide rail.

[0027] In this way, the driving unit can drive the hoisting assembly to slide relatively along the extension direction of the first guide rail to transfer the strip material and facilitate the transportation of the strip material.

[0028] As an embodiment of the present invention, the block material clamping mechanism includes an upper seat and a rotating assembly, the upper seat is provided with two groups of clamping assemblies for clamping strip materials, the two groups of clamping assemblies are respectively arranged at both ends of the upper seat, the clamping assembly includes a fixed clamping block and a movable clamping block, the fixed clamping block and the movable clamping block cooperate with each other to clamp the strip material, the rotating assembly is arranged below the upper seat, and the rotating assembly is used to drive the upper seat to rotate.

[0029] In this way, during use, the strips on one group of clamping components are cut by the block material cutting mechanism, and the other group of clamping components clamps the new strips. After cutting, the strips are unloaded, and the rotating mechanism rotates the new strips to the bottom of the block material cutting mechanism, which facilitates the transportation of the strips and can effectively improve the production efficiency of the cutting mechanism.

[0030] As an embodiment of the present invention, the clamping assembly includes more than two fixed clamping blocks and more than two movable clamping blocks, each of the fixed clamping blocks corresponds to one movable clamping block, and gaps are provided between adjacent fixed clamping blocks to allow the cutting line to pass through, and gaps are provided between adjacent movable clamping blocks to allow the cutting line to pass through.

[0031] In this way, after the cutting line is cut, the fixed clamp block and the movable clamp block can still clamp the cut block, which can avoid the edge collapse of the cutting line when the cutting is completed.

[0032] As an embodiment of the present invention, the block cutting mechanism includes a block cutting frame and more than two block cutting components, the block cutting frame includes a base frame and a side frame, the side frame is arranged on the base frame, the block clamping mechanism is arranged on the base frame, more than two block cutting components are arranged on the side frame, the block cutting component is arranged above the block clamping mechanism, the more than two block cutting components are used to cut the strips on the block clamping mechanism into blocks of the same size, and the more than two block cutting components do not interfere with each other.

[0033] In this way, more than two cutting mechanisms cut the strip material downwards at the same time, and the more than two cutting mechanisms do not interfere with each other, and the sizes of the cut blocks are the same, which can improve production efficiency.

[0034] As an embodiment of the present invention, the block cutting assembly includes two cutting parts and a gear train seat plate, the two cutting parts are respectively arranged on both sides of the gear train seat plate, the gear train seat plate is connected to the side frame, the cutting parts include block cutting lines, the distance between the block cutting lines of the two cutting parts is a preset value, and the distance between adjacent block cutting lines in more than two block cutting assemblies is also a preset value.

[0035] In this way, the sizes of the blocks cut by more than two block cutting mechanisms are the same, ensuring that the sizes of the blocks are uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0037] Figure 1 A three-dimensional diagram of a polysilicon squaring production line according to an embodiment of the present application;

[0038] Figure 2 This is a schematic structural diagram of a silicon material table positioning mechanism and a strip material cutting mechanism according to an embodiment of the present application;

[0039] Figure 3 This is a front view of a silicon material table positioning mechanism and a strip material cutting mechanism according to an embodiment of the present application;

[0040] Figure 4 This is a structural schematic diagram of a silicon material stage positioning mechanism according to an embodiment of the present application;

[0041] Figure 5 This is a schematic structural diagram of a movable clamping assembly according to an embodiment of the present application;

[0042] Figure 6 This is a schematic diagram of the structure of a cutting operation component according to an embodiment of the present application;

[0043] Figure 7 This is a front view of a strip material transfer mechanism and a strip material cutting mechanism according to an embodiment of the present application;

[0044] Figure 8 This is a structural schematic diagram of a strip material transfer mechanism according to an embodiment of the present application;

[0045] Fig. 9 A front view of a strip material transfer mechanism according to an embodiment of the present application;

[0046] Fig.10 This is a structural schematic diagram of a strip material transport mechanism and a strip material transfer mechanism according to an embodiment of the present application;

[0047] Fig.11 This is a structural schematic diagram of a strip material transport mechanism according to an embodiment of the present application;

[0048] Fig.12 This is a schematic structural diagram of a block material cutting mechanism and a block material clamping mechanism according to an embodiment of the present application;

[0049] Fig.13 This is a schematic structural diagram of a block material clamping mechanism according to an embodiment of the present application;

[0050] Fig.14 A front view of a block cutting mechanism and a block clamping mechanism according to an embodiment of the present application;

[0051] Fig.15 This is a schematic structural diagram of a block cutting assembly according to an embodiment of the present application.

[0052] Description of reference numerals:

[0053] 1. Strip cutting mechanism,

[0054] 17. Cutting line, 181. Cutting frame, 182. Cutting operation assembly, 183. Cutting drive unit, 19. Silicon material table positioning mechanism, 191. Movable clamping assembly, 1913. Movable clamping block, 1913a. First clamping part, 1913b. Second clamping part, 1914. Movable seat plate, 192. Fixed clamping assembly, 194. Positioning frame,

[0055] 2. Strip material transportation mechanism,

[0056] 21. Support frame, 211. Second guide rail, 22. Hoisting drive unit, 23. Hoisting assembly, 3. Strip material transfer mechanism,

[0057] 31. Transfer rack, 32. Clamp arm, 331. Clamp drive unit, 341. Cylinder, 342. First slide block, 343. First guide rail, 344. Lower fork, 35. Transfer platform,

[0058] 4. Block cutting mechanism,

[0059] 41. Block material cutting assembly, 417. Block material cutting line, 411. Gear train seat plate, 42. Block material clamping mechanism, 421. Rotating assembly, 424. Moving clamping block, 425. Upper seat, 426. Fixed clamping block, 43. Base frame, 44. Side frame, 5. Strip material, 7. Silicon material. DETAILED DESCRIPTION

[0060] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0061] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the description of this specification, it should be understood that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0063] The simple method of fixing the polysilicon ingot is generally to use glue for bonding, but it is troublesome to unload after cutting, and it is not conducive to the automatic turnover of the second process; or, after the polysilicon ingot is leveled, it is locked by the weight of the polysilicon ingot itself, but this method has the following defects: the upper and lower surfaces of the polysilicon ingot are not very flat, and the padding is aimed at the entire ingot, and the strip blocks after cutting may not all have pads, which will cause the unpositioned part to collapse due to the release of stress after cutting, or because the fixation is not firm, it will shake at the moment of cutting and cause the wire to break.

[0064] The direction indicated by the arrow x in the figure is the width direction of the silicon material 7 , the direction indicated by the arrow y in the figure is the length direction of the silicon material 7 , and the direction indicated by the arrow z in the figure is the height direction of the silicon material 7 .

[0065] See also Figure 1 The present embodiment relates to a polysilicon squaring production line, comprising a silicon material stage positioning mechanism 19, a strip material cutting mechanism 1, a strip material transfer mechanism 3, a strip material transport mechanism 2, a block material clamping mechanism 42 and a block material cutting mechanism 4; the silicon material stage positioning mechanism 19 is used to clamp the silicon material along the length direction of the silicon material (in the direction indicated by the arrow y in the figure), the strip material cutting mechanism 1 is arranged on one side of the silicon material stage positioning mechanism 19 along the length direction of the silicon material 7 (in the direction indicated by the arrow y in the figure), and the strip material cutting mechanism 1 is used to cut the silicon material 7 into strips 5 along the length direction of the silicon material (in the direction indicated by the arrow y in the figure);

[0066] The strip material transfer mechanism 3 includes a transfer platform 35, which is arranged on one side of the silicon material platform positioning mechanism 19 along the width direction of the silicon material (in the direction indicated by the arrow x in the figure), and the strip material transfer mechanism 3 is used to clamp the strip material 5 on the silicon material platform positioning mechanism 19 to the transfer platform 35;

[0067] The strip material transport mechanism 2 is arranged on one side of the strip material transfer mechanism 3 along the length direction of the silicon material (as indicated by the arrow y in the figure), the block material clamping mechanism 42 is arranged on one side of the strip material transport mechanism 2 along the width direction of the silicon material (as indicated by the arrow x in the figure), and the block material cutting mechanism 4 is arranged above the block material clamping mechanism 42. The strip material transport mechanism 2 is used to transport the strip material 5 to the block material clamping mechanism 42, the block material clamping mechanism 42 is used to clamp the strip material 5, and the block material cutting mechanism 4 is used to cut the strip material 5 into blocks.

[0068] Different from the prior art, the above technical solution uses the silicon material table positioning mechanism 19 to clamp the silicon material along the length direction of the silicon material, the strip cutting mechanism 1 is arranged on one side of the silicon material table positioning mechanism 19 along the length direction of the silicon material, the transfer platform 35 is arranged on one side of the silicon material table positioning mechanism 19 along the width direction of the silicon material, the strip transportation mechanism 2 is arranged on one side of the strip transportation mechanism 3 along the length direction of the silicon material, and the block clamping mechanism 42 is arranged on one side of the strip transportation mechanism 2 along the width direction of the silicon material; in this way, the problem of a linear production line being too long is solved. The silicon material is first cut into strips and then transported, and the silicon material is cut into blocks. This does not need to be completed on a straight line production line, which is convenient for use when the site length is insufficient.

[0069] In some embodiments, see Figures 2 to 6 The strip cutting mechanism 1 includes a cutting frame 181 and more than two cutting operation components 182 arranged on the cutting frame 181; the cutting operation component 182 includes two cutting units and a cutting drive unit 183, the cutting unit includes a cutting line 17, the cutting lines 17 of the two cutting units are arranged side by side, and the spacing between the cutting lines 17 of the two cutting units is a preset value, the cutting drive unit 183 is arranged along the width direction of the silicon material, and is used to drive the cutting line 17 to cut the silicon material into long strips along the length direction of the silicon material, and the spacing between the cutting lines 17 of adjacent cutting operation components 182 is also a preset value.

[0070] In this way, the spacing between the cutting lines 17 of the two cutting units is a preset value, and the spacing between the cutting lines 17 of adjacent cutting operation components 182 is also a preset value. When more than two cutting operation components 182 cut at the same time, the width of the long silicon material cut off is the same, and the size of the long silicon material can be unified to facilitate subsequent production.

[0071] In some embodiments, the silicon material table positioning mechanism 19 includes a positioning frame 194 and a fixed clamping assembly 192 and a movable clamping assembly 191 arranged on the positioning frame 194. The fixed clamping assembly 192 is arranged at one end of the positioning frame 194, and the movable clamping assembly 191 is arranged at the other end of the positioning frame 194. More than two fixed clamping assemblies 192 and more than two movable clamping assemblies 191 are arranged along the width direction of the silicon material. The movable clamping assembly 191 corresponds to the fixed clamping assembly 192 one by one and cooperates with each other to clamp the silicon material.

[0072] In this way, one fixed clamping component 192 is provided with one movable clamping component 191, and after the silicon material is cut, two or more fixed clamping components 192 and two or more movable clamping components 191 are provided respectively to clamp the cut long silicon material. By clamping and fixing the cut silicon material separately through the one-to-one corresponding fixed clamping components 192 and movable clamping components 191, the vibration of the silicon material can be effectively reduced, and the breakage caused by edge collapse and shaking can be reduced.

[0073] In some embodiments, the movable clamping assembly 191 includes a movable seat plate 1914 and a movable clamping block 1913, the movable clamping block 1913 is hinged on the movable seat plate 1914, the movable clamping block 1913 includes a first clamping portion 1913a and a second clamping portion 1913b, the first clamping portion 1913a is located at the top of the movable clamping block 1913, and the second clamping portion 1913b is located at the bottom of the movable clamping block 1913, the first clamping portion 1913a is a first plane for contacting with the silicon material, and the second clamping portion 1913b is a second plane for contacting with the silicon material.

[0074] In this way, during the production process, the silicon material is as close to the movable clamping block 1913 as possible, and the movable clamping block 1913 contacts the silicon material through the first clamping part 1913a and the second clamping part 1913b. Since the movable clamping block 1913 is hinged on the movable seat plate 1914, the movable clamping block 1913 can automatically adjust the positions of the first clamping part 1913a and the second clamping part 1913b, so that the first clamping part 1913a is as close to the top of the silicon material as possible, and the second clamping part 1913b is as close to the bottom of the silicon material as possible, so that the silicon material is evenly stressed when clamped, which can effectively reduce the vibration of the silicon material and reduce the breakage caused by edge collapse and shaking. The first clamping part 1913a, the second clamping part 1913b and the silicon material are in surface contact, so that the first clamping part 1913a and the second clamping part 1913b are evenly stressed.

[0075] In some embodiments, see Figures 7 to 9The strip material transfer mechanism 3 also includes a transfer frame 31 and a clamping assembly. The clamping assembly is arranged on the transfer frame 31. The clamping assembly is used to clamp the processed strip material to the transfer platform 35. The transfer platform 35 fixes the strip material. The clamping assembly includes a first slider 342, a first guide rail 343, a lower fork 344 and a clamping drive unit. The clamping drive unit is a clamping cylinder 341. The clamping arm 32 and the first guide rail 343 are arranged on the transfer frame 31. The first slider 342 is slidably arranged on the first guide rail 343. The lower fork 344 is arranged on the first slider 342. The clamping drive unit is used to drive the first slider to slide on the first guide rail 343 to drive the lower fork 344 to clamp the strip material. In this way, the lower fork 344 is driven by the clamping drive unit to extend under the strip material, insert the strip material, and facilitate the clamping assembly to transfer the strip material.

[0076] In some embodiments, see Figure 10 to Figure 11 The strip material transport mechanism 2 includes a support frame 21 and a hoisting assembly 23. The support frame 21 is arranged on one side of the transfer platform 35. The hoisting assembly 23 is arranged on the support frame 21. The hoisting assembly 23 is used to hoist the strip material on the transfer platform 35 to a desired position. The hoisting assembly 23 includes a hoisting drive unit 22 and the hoisting assembly 23. The support frame 21 is provided with a second guide rail 211. The hoisting assembly 23 can slide relatively along the extension direction of the second guide rail 211. The hoisting drive unit 22 is used to drive the hoisting assembly 23 to slide relatively along the extension direction of the second guide rail 211. In this way, the drive unit can drive the hoisting assembly 23 to slide relatively along the extension direction of the first guide rail 343, which is used to transfer the strip material and facilitate the transportation of the strip material.

[0077] In some embodiments, see Figures 12 to 15 The block material clamping mechanism 42 includes an upper seat 425 and a rotating assembly 421. Two groups of clamping assemblies for clamping strip materials are arranged on the upper seat 425. The two groups of clamping assemblies are respectively arranged at both ends of the upper seat 425. The clamping assembly includes a fixed clamping block 426 and a movable clamping block 424. The fixed clamping block 426 and the movable clamping block 424 cooperate with each other to clamp the strip materials. The rotating assembly 421 is arranged below the upper seat 425, and the rotating assembly 421 is used to drive the upper seat 425 to rotate.

[0078] In this way, during use, the strips on one group of clamping components are cut by the block material cutting mechanism 4, and the other group of clamping components clamps the new strips. After cutting, the strips are unloaded, and the rotating mechanism rotates the new strips to the bottom of the block material cutting mechanism 4, which facilitates the transportation of the strips and can effectively improve the production efficiency of the cutting mechanism.

[0079] In some embodiments, the clamping assembly includes more than two fixed clamping blocks 426 and more than two movable clamping blocks 424, each fixed clamping block 426 corresponds to one movable clamping block 424, and gaps are provided between adjacent fixed clamping blocks 426 to allow the cutting line 17 to pass through, and gaps are provided between adjacent movable clamping blocks 424 to allow the cutting line 17 to pass through. In this way, after the cutting line 17 is cut, the fixed clamping block 426 and the movable clamping block 424 can still clamp the cut block material, which can avoid the edge collapse of the cutting line 17 when the cutting is completed.

[0080] In some embodiments, the block material cutting mechanism 4 includes a block material cutting frame and two or more block material cutting components 41. The block material cutting frame includes a base frame 43 and a side frame 44. The side frame 44 is arranged on the base frame 43. The block material clamping mechanism 42 is arranged on the base frame 43. Two or more block material cutting components 41 are arranged on the side frame 44. The block material cutting component 41 is arranged above the block material clamping mechanism 42. The two or more block material cutting components 41 are used to cut the strip material on the block material clamping mechanism 42 into blocks of the same size. The two or more block material cutting components 41 do not interfere with each other. In this way, the two or more cutting mechanisms cut the strip material downward at the same time, and the two or more cutting mechanisms do not interfere with each other. The size of the cut blocks is the same, which can improve production efficiency.

[0081] In some embodiments, the block cutting assembly 41 includes two cutting parts and a gear train seat plate 411. The two cutting parts are respectively arranged on both sides of the gear train seat plate 411. The gear train seat plate 411 is connected to the side frame 44. The cutting parts include a block cutting line 417. The distance between the block cutting lines 417 of the two cutting parts is a preset value. The distance between adjacent block cutting lines 417 in more than two block cutting assemblies 41 is also a preset value. In this way, the sizes of the blocks cut by more than two block cutting mechanisms 4 are the same, ensuring the uniform size of the blocks.

[0082] The specific operation process is as follows:

[0083] 1) First, the polysilicon ingot is moved to the silicon material table, which can be done manually or by an automatic robot. The polysilicon ingot is placed on the pads of the silicon material table. The number of pads is generally three. The polysilicon ingot is roughly leveled by the pads, and one vertical end face of the polysilicon ingot is as close as possible to the edge of the movable clamping block 1913 of the movable clamping assembly 191. The cylinder of the movable clamping assembly 191 is actuated to push the polysilicon ingot through the movable clamping block 1913, thereby achieving the clamping of the polysilicon ingot. At this time, there are multiple movable clamping assemblies 191 and fixed clamping assemblies 192 that are arranged one by one in opposition to each other, which can meet the requirement of always maintaining the clamping of the polysilicon strip block after the cutting is completed, thereby reducing the breakage caused by edge collapse and shaking.

[0084] 2) The strip cutting mechanism 1 is activated to cut the strips. The driving mode of the strip and block cutting mechanism is quite different from the previous one. Because the size of the polysilicon block after cutting is generally 158mm×158mm, it is subject to space limitations and the driving mode adopts synchronous belt transmission. There are multiple cutting operation components 182, and each cutting operation component 182 is equipped with an independent driving and feeding mechanism. There are 2 sets of cutting units on the cutting operation component 182, and the spacing between the cutting units is 158mm. Therefore, in this step, the polysilicon ingot is cut into multiple strips with a thickness of 158mm, and the skin materials on the other four sides of the strip remain in the original state.

[0085] 3) After the above-mentioned first cutting mechanism completes the cutting, the two outermost pieces of leather are manually collected, and then the strip material cutting mechanism 1 returns to the starting position. The strip materials are respectively transferred to the strip material placement rack through the strip material transfer mechanism 3 and the strip material transportation mechanism 2 for standby use. The hoisting assembly 23 on the strip material transportation mechanism 2 sequentially clamps the strip materials to the block material cutting mechanism 4. The positioning block of the block material cutting mechanism 4 roughly positions one end of the strip material. After the moving clamp block 424 is actuated, it clamps the strip material together with the fixed clamp block 426. Because the two surfaces of the strip material clamped are both surfaces that have been cut, the shape and position accuracy can be guaranteed. The block material cutting is completed under the clamping of multiple moving clamp blocks 424 and fixed clamp blocks 426. At this time, after two cuts, the size of the polysilicon block is generally 158mm×158mm. Among them, the block material clamping mechanism 42 has two stations, one station is in the cutting state, and the other station can be used for unloading or loading, thereby effectively improving efficiency.

[0086] 4) After the above work is completed, the block can be transferred to the next process manually or by a robot. In the next process, the polysilicon block needs to be manually inspected for crystal orientation, and the marking lines to be cut are marked on both ends of the block. The block is then transferred to the assembly line, grabbed by the equipment we designed earlier, and the head and tail skins are cut off, so as to obtain a blank with six sides cut.

[0087] 5) The above-mentioned cutting method: placing the silicon ingot on the first workbench - the first cutting mechanism cuts the silicon ingot to form a plurality of strips - the strips are transferred to the second workbench - the second cutting mechanism cuts the strips to form a plurality of blocks - the blocks are manually marked with marking lines - and cut off from the marking lines.

[0088] It should be noted that, although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process changes made using the contents of the present invention specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.

Claims

1. A polysilicon square production line, characterized in that: It includes a silicon material table positioning mechanism, a strip material cutting mechanism, a strip material transfer mechanism, a strip material transportation mechanism, a block material clamping mechanism and a block material cutting mechanism; The silicon material stage positioning mechanism is used to clamp the silicon material along the length direction of the silicon material, and the strip material cutting mechanism is arranged on one side of the silicon material stage positioning mechanism along the length direction of the silicon material, and the strip material cutting mechanism is used to cut the silicon material into strips along the length direction of the silicon material; The strip material transfer mechanism comprises a transfer platform, which is arranged on one side of the silicon material table positioning mechanism along the width direction of the silicon material, and the strip material transfer mechanism is used to clamp the strip material on the silicon material table positioning mechanism to the transfer platform; The strip material transport mechanism is arranged on one side of the strip material transfer mechanism along the length direction of the silicon material, the block material clamping mechanism is arranged on one side of the strip material transport mechanism along the width direction of the silicon material, the block material cutting mechanism is arranged above the block material clamping mechanism, the strip material transport mechanism is used to transport the strip material to the block material clamping mechanism, the block material clamping mechanism is used to clamp the strip material, and the block material cutting mechanism is used to cut the strip material into blocks; The silicon material table positioning mechanism includes a positioning frame and a fixed clamping assembly and a movable clamping assembly arranged on the positioning frame, wherein the fixed clamping assembly is arranged at one end of the positioning frame, and the movable clamping assembly is arranged at the other end of the positioning frame, and more than two fixed clamping assemblies and more than two movable clamping assemblies are arranged along the width direction of the silicon material, and the movable clamping assemblies correspond to the fixed clamping assemblies one by one and cooperate with each other to clamp the silicon material; The movable clamping assembly comprises a movable seat plate and a movable clamping block, wherein the movable clamping block is hinged on the movable seat plate, and the movable clamping block comprises a first clamping portion and a second clamping portion, wherein the first clamping portion is located at the top of the movable clamping block, and the second clamping portion is located at the bottom of the movable clamping block, wherein the first clamping portion is a first plane for contacting the silicon material, and the second clamping portion is a second plane for contacting the silicon material; The strip material cutting mechanism comprises a cutting frame and two or more cutting operation components arranged on the cutting frame; The cutting operation assembly includes two cutting units and a cutting drive unit. The cutting unit includes a cutting line. The cutting lines of the two cutting units are arranged side by side, and the spacing between the cutting lines of the two cutting units is a preset value. The cutting drive unit is arranged along the width direction of the silicon material and is used to drive the cutting line to cut the silicon material into long strips along the length direction of the silicon material. The spacing between the cutting lines of adjacent cutting operation assemblies is also a preset value. The strip material transfer mechanism further comprises a transfer frame and a clamping assembly, wherein the clamping assembly is arranged on the transfer frame, and the clamping assembly is used to clamp the processed strip material onto the transfer platform, and the transfer platform fixes the strip material; The gripping assembly includes a first slider, a first guide rail, a lower fork and a gripping drive unit, wherein the gripping drive unit and the first guide rail are arranged on the transfer frame, the first slider is slidably arranged on the first guide rail, the lower fork is arranged on the first slider, and the gripping drive unit is used to drive the first slider to slide on the first guide rail to drive the lower fork to grip the strip material; The block material clamping mechanism includes an upper seat and a rotating assembly. Two groups of clamping assemblies for clamping strip materials are arranged on the upper seat. The two groups of clamping assemblies are respectively arranged at both ends of the upper seat. The clamping assembly includes a fixed clamping block and a movable clamping block. The fixed clamping block and the movable clamping block cooperate with each other to clamp the strip material. The rotating assembly is arranged below the upper seat, and the rotating assembly is used to drive the upper seat to rotate.

2. The polysilicon squaring production line according to claim 1, characterized in that: The strip material transport mechanism comprises a support frame and a hoisting assembly, wherein the support frame is arranged on one side of the transfer platform, the hoisting assembly is arranged on the support frame, and the hoisting assembly is used to hoist the strip material on the transfer platform to a desired position; The hoisting assembly includes a hoisting drive unit and a hoisting assembly. A second guide rail is provided on the support frame. The hoisting assembly can slide relatively along the extension direction of the second guide rail. The hoisting drive unit is used to drive the hoisting assembly to slide relatively along the extension direction of the second guide rail.

3. The polysilicon squaring production line according to claim 1, characterized in that: The clamping assembly includes more than two fixed clamping blocks and more than two movable clamping blocks, each of the fixed clamping blocks corresponds to one movable clamping block, gaps for allowing the cutting line to pass through are set between adjacent fixed clamping blocks, and gaps for allowing the cutting line to pass through are set between adjacent movable clamping blocks.

4. The polysilicon squaring production line according to claim 1, characterized in that: The block cutting mechanism includes a block cutting frame and more than two block cutting components. The block cutting frame includes a base frame and a side frame. The side frame is arranged on the base frame. The block clamping mechanism is arranged on the base frame. More than two block cutting components are arranged on the side frame. The block cutting component is arranged above the block clamping mechanism. The more than two block cutting components are used to cut the strips on the block clamping mechanism into blocks of the same size. The more than two block cutting components do not interfere with each other.

5. The polysilicon squaring production line according to claim 4, characterized in that: The block cutting assembly includes two cutting parts and a gear train seat plate, the two cutting parts are respectively arranged on both sides of the gear train seat plate, the gear train seat plate is connected to the side frame, the cutting parts include block cutting lines, the distance between the block cutting lines of the two cutting parts is a preset value, and the distance between adjacent block cutting lines in more than two block cutting assemblies is also a preset value.

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