Polysilicon wire cutting equipment

Abstract

The utility model relates to the technical field of polysilicon processing, and discloses polysilicon wire cutting equipment, including a fixing frame, a base fixed below the front of the fixing frame, and a processing table fixed above the base, and also includes: a threaded rod rotatably connected to the inside of the fixing frame, a motor is fixed on the top of the fixing frame, and the output shaft of the motor passes through the fixing frame and is fixedly connected to the top of the threaded rod; the utility model has a transposition function, and two cutting electrode wires are arranged on the equipment. When the electrode wire on one side is seriously worn and needs to be replaced, the staff can switch the position of the electrode wire by rotating and transposing, and then the staff can continue the cutting work. The staff can remove the transposed electrode wire when the equipment is running and replace the electrode wire, which shortens the time for replacing the electrode wire of the equipment and greatly improves the work efficiency, so as to perform subsequent wire cutting operations on polysilicon.

Description

Technical Field

[0001] The utility model relates to the technical field of polysilicon processing, in particular to polysilicon wire cutting equipment. Background Art

[0002] Polycrystalline silicon is a form of elemental silicon. When molten elemental silicon solidifies under supercooling conditions, silicon atoms are arranged into many crystal nuclei in the form of diamond lattices. If these crystal nuclei grow into grains with different crystal plane orientations, these grains combine to crystallize into polycrystalline silicon. Currently, wire cutting is used when cutting polycrystalline silicon to improve the cutting quality.

[0003] After searching, a silicon core polysilicon wire cutting equipment, application number: CN201820798528.1, during the wire cutting process of polysilicon, the electrode wire used to cut the polysilicon is subject to severe spark erosion and is prone to breakage, which causes the electrode wire on the device to need to be disassembled and replaced after a period of use. When the staff replaces the electrode wire, the entire device cannot cut the polysilicon. Only after the staff has replaced the electrode wire can they continue the cutting process, and the work efficiency is low. Utility Model Content

[0004] The purpose of the utility model is to provide a polysilicon wire cutting device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a polysilicon wire cutting device, comprising a fixing frame, a base fixed below the front of the fixing frame, and a processing table fixed above the base, and also comprising:

[0006] A threaded rod rotatably connected to the inside of a fixed frame, a motor is fixed to the top of the fixed frame, and the output shaft of the motor passes through the fixed frame and is fixedly connected to the top of the threaded rod, a lifting platform is arranged below the inside of the fixed frame, and connecting frames are arranged below the front and rear sides of the fixed frame, and a switching structure is arranged on the left and right sides of the lifting platform, and the switching structure includes electric telescopic rods fixed to the left and right sides of the lifting platform, limit grooves provided on the left and right sides of the fixed frame, and limit blocks slidably connected to the bottom of the inner wall of the limit groove, and the output shaft of the electric telescopic rod is fixedly connected to the surface of the limit block;

[0007] The cutting wire mounting frames are fixed on the left and right sides of the surface of the connecting frame, and the cutting wire body is fixed between the cutting wire mounting frames, a fixing plate is fixed below the back of the fixing frame, and a disassembly structure is arranged above the fixing plate, the threaded rod passes through the lifting platform and is threadedly connected to the lifting platform, and the connecting frame is bolted to the lifting platform, and the width of the connecting frame is smaller than the width of the inner wall of the fixing frame.

[0008] Preferably, the disassembly structure includes a movable plate, a cylinder, a vertical plate and a wire hook rack, the movable plate is slidably connected to the rear side of the inner wall of the fixed plate, the cylinder is fixed on the left and right sides of the top of the fixed plate, and the output shaft of the cylinder is fixedly connected to the surface of the movable plate, the vertical plate is fixed on the left and right sides of the top of the movable plate, and the wire hook rack is arranged above the front side of the vertical plate.

[0009] Preferably, the wire hooking frame is arranged in an L-shape as a whole, and the rear side of the wire hooking frame is hinged to the vertical plate through a spring hinge.

[0010] Preferably, a fixing rod is fixed to the middle of the top of the movable plate, and the top end of the fixing rod is bolted to a limiting plate, and the left and right sides of the limiting plate extend to the surface above the wire hooking frame.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model has a transposition function. Two cutting electrode wires are arranged on the device. When the electrode wire on one side is severely worn and needs to be replaced, the staff can switch the position of the electrode wire by rotating and transposing, and then the staff can continue the cutting work. The staff can remove the transposed electrode wire and replace the electrode wire while the device is running, which shortens the time for replacing the electrode wire of the device and greatly improves the work efficiency, so as to perform subsequent wire cutting operations on polysilicon. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0015] Figure 3 It is a three-dimensional schematic diagram of the fixing frame in the utility model;

[0016] Figure 4 It is a three-dimensional schematic diagram of the connecting frame in the utility model;

[0017] Figure 5 It is a three-dimensional schematic diagram of the disassembly structure in the utility model.

[0018] In the figure: 1. fixed frame; 2. base; 3. processing table; 4. threaded rod; 5. motor; 6. lifting platform; 7. switching structure; 71. electric telescopic rod; 72. limit groove; 73. limit block; 8. connecting frame; 9. cutting line mounting frame; 10. cutting line body; 11. fixed plate; 12. disassembly structure; 121. movable plate; 122. cylinder; 123. vertical plate; 124. wire hook frame; 13. fixed rod; 14. limit plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 As shown, the polysilicon wire cutting equipment includes a fixed frame 1, a base 2 is fixed on the front side of the fixed frame 1, a processing table 3 is fixed above the base 2, and a clamp for clamping and fixing polysilicon is installed above the processing table 3, a threaded rod 4 is rotatably connected inside the fixed frame 1, a motor 5 is fixed on the top of the fixed frame 1, and the output shaft of the motor 5 passes through the fixed frame 1 and is fixedly connected to the top of the threaded rod 4, a lifting platform 6 is arranged below the inside of the fixed frame 1, connecting frames 8 are arranged below the front and rear sides of the fixed frame 1, and switching structures 7 are arranged on the left and right sides of the lifting platform 6, cutting wire mounting frames 9 are fixed on the left and right sides of the surface of the connecting frame 8, and a cutting wire body 10 is fixed between the cutting wire mounting frames 9, a fixing plate 11 is fixed below the back of the fixed frame 1, and a disassembly structure 12 is arranged above the fixing plate 11.

[0021] The threaded rod 4 passes through the lifting platform 6 and is threadedly connected to the lifting platform 6, and the connecting frame 8 is bolted to the lifting platform 6. The width of the connecting frame 8 is smaller than the width of the inner wall of the fixed frame 1. After the staff turns on the upper motor 5, the output shaft of the motor 5 will drive the threaded rod 4 below to rotate, and the lifting platform 6 will move up and down on the surface of the threaded rod 4, thereby adjusting the height of the cutting line body 10 to facilitate cutting operations on the polysilicon below.

[0022] The switching structure 7 includes an electric telescopic rod 71, a limit groove 72 and a limit block 73. The electric telescopic rod 71 is fixed to the left and right sides of the lifting platform 6. The limit groove 72 is arranged on the left and right sides of the fixed frame 1. The limit block 73 is slidably connected to the lower part of the inner wall of the limit groove 72, and the output shaft of the electric telescopic rod 71 is fixedly connected to the surface of the limit block 73. When the limit block 73 is inside the limit groove 72, when the motor 5 drives the threaded rod 4 to rotate, the limit blocks 73 on both sides can limit the lifting platform 6, so that the lifting platform 6 can only move in the up and down directions. When the cutting line body 10 on the front side is severely worn and needs to be replaced, the staff only needs to open the electric telescopic rods 71 ​​on both sides, so that the limit blocks 73 are moved out from the inside of the limit groove 72. When the threaded rod 4 rotates, the lifting platform 6 also drives the connecting frame 8 to rotate, thereby exchanging the positions of the connecting frames 8 on the front and rear sides.

[0023] The disassembly structure 12 includes a movable plate 121, a cylinder 122, a vertical plate 123 and a wire hooking frame 124. The movable plate 121 is slidably connected to the rear side of the inner wall of the fixed plate 11, the cylinder 122 is fixed to the left and right sides of the top of the fixed plate 11, and the output shaft of the cylinder 122 is fixedly connected to the surface of the movable plate 121. The vertical plate 123 is fixed to the left and right sides of the top of the movable plate 121. The wire hooking frame 124 is arranged above the front of the vertical plate 123. The wire hooking frame 124 is arranged in an L-shape as a whole, and the wire hooking frame The rear side of 124 is hinged to the vertical plate 123 through a spring hinge. When the severely worn cutting line body 10 needs to be replaced, the staff can open the rear cylinder 122 to move the movable plate 121 to the front side, so that the wire hook frame 124 moves to the bottom of the cutting line body 10. When the cutting line body 10 moves downward, the wire hook frame 124 bends, and the rising cutting line body 10 is hooked by the wire hook frame 124, and then the cutting line body 10 is removed.

[0024] A fixing rod 13 is fixed in the middle of the top of the movable plate 121, and the top end of the fixing rod 13 is bolted to a limiting plate 14. The left and right sides of the limiting plate 14 extend to the surface above the wire hooking frame 124. When the cutting wire body 10 falls, the wire hooking frame 124 can be bent. When the cutting wire body 10 rises again, the upper limiting plate 14 can limit the wire hooking frame 124 so that the wire hooking frame 124 can disassemble the cutting wire body 10.

[0025] Working principle: When the staff needs to perform wire cutting processing on polysilicon, the staff first places the polysilicon to be cut on the top of the processing table 3, and then fixes the polysilicon with the clamp above the processing table 3, and then the staff can turn on the upper motor 5, so that the lifting platform 6 drives the cutting wire body 10 on the front side to move downward. When the cutting wire body 10 on the front side contacts the polysilicon, the staff energizes the cutting wire body 10 and controls the cutting wire body 10 to move back and forth through the cutting wire mounting frame 9, and then starts to cut the polysilicon below. When the cutting is completed, the staff can control the lifting platform 6 to rise and move back to its original position again. When the cutting wire body 10 on the front side is severely worn and needs to be replaced, the staff can directly open the electric telescopic rods 71 ​​on both sides to move the limit block 73 out of the inside of the limit groove 72, and then the staff turns on the motor 5 again, so that the motor 5 drives the threaded rod 4 below to rotate, thereby controlling the lifting platform 6 to rotate. One hundred and eighty degrees, so that the cutting wire body 10 on the rear side moves to the front side, and the severely worn cutting wire body 10 moves to the rear side, then the output shaft of the electric telescopic rod 71 is controlled to push out the limit block 73 again, so that the limit block 73 is inserted into the inside of the limit groove 72, and the lifting platform 6 is limited, and then the staff can continue to perform wire cutting operation on the polysilicon, and the staff controls the cutting wire mounting frame 9 on the rear side to stop fixing the two ends of the cutting wire body 10, and then the staff opens the rear cylinder 122 to move the movable plate 121 forward. When the front cutting wire body 10 falls to cut the polysilicon, the rear cutting wire body 10 moves to the hooking frame 124 to descend, and when the lifting platform 6 rises again, the hooking frame 124 can hook down the severely worn cutting wire body 10 at the rear, completing the disassembly operation of the cutting wire body 10, and then the staff can take out the new cutting wire body 10 and fix it to the cutting wire mounting frame 9 at the rear, so as to complete the cutting processing operation on the polysilicon.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polysilicon wire cutting device, comprising a fixing frame (1), a base (2) fixed below the front of the fixing frame (1), and a processing table (3) fixed above the base (2), characterized in that: Also includes: A threaded rod (4) is rotatably connected to the interior of a fixed frame (1); a motor (5) is fixed to the top of the fixed frame (1); an output shaft of the motor (5) penetrates the fixed frame (1) and is fixedly connected to the top of the threaded rod (4); a lifting platform (6) is arranged below the interior of the fixed frame (1); connecting frames (8) are arranged below the front and rear sides of the fixed frame (1); a switching structure (7) is arranged on the left and right sides of the lifting platform (6); the switching structure (7) comprises an electric telescopic rod (71) fixed to the left and right sides of the lifting platform (6), a limiting groove (72) provided on the left and right sides of the fixed frame (1), and a limiting block (73) slidably connected to the lower inner wall of the limiting groove (72); the output shaft of the electric telescopic rod (71) is fixedly connected to the surface of the limiting block (73); The cutting wire mounting frames (9) are fixed on the left and right sides of the surface of the connecting frame (8), and the cutting wire body (10) is fixed between the cutting wire mounting frames (9). A fixing plate (11) is fixed below the back of the fixing frame (1), and a disassembly structure (12) is arranged above the fixing plate (11). The threaded rod (4) passes through the lifting platform (6) and is threadedly connected to the lifting platform (6), and the connecting frame (8) and the lifting platform (6) are bolted together. The width of the connecting frame (8) is smaller than the width of the inner wall of the fixing frame (1).

2. The polysilicon wire cutting device according to claim 1, characterized in that: The disassembly structure (12) comprises a movable plate (121), a cylinder (122), a vertical plate (123) and a wire hooking frame (124); the movable plate (121) is slidably connected to the rear side of the inner wall of the fixed plate (11); the cylinder (122) is fixed to the left and right sides of the top of the fixed plate (11); and the output shaft of the cylinder (122) is fixedly connected to the surface of the movable plate (121); the vertical plate (123) is fixed to the left and right sides of the top of the movable plate (121); and the wire hooking frame (124) is arranged above the front side of the vertical plate (123).

3. The polysilicon wire cutting device according to claim 2, characterized in that: The wire hooking frame (124) is arranged in an L-shape as a whole, and the rear side of the wire hooking frame (124) is hinged to the vertical plate (123) through a spring hinge.

4. The polysilicon wire cutting device according to claim 2, characterized in that: A fixing rod (13) is fixed in the middle of the top of the movable plate (121), and the top end of the fixing rod (13) is bolted to a limiting plate (14), and the left and right sides of the limiting plate (14) extend to the surface above the wire hooking frame (124).

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