A drying device for lithium battery diaphragm production

Abstract

The application discloses a kind of dryers for lithium battery diaphragm production, including two frame bodies, two described frame bodies are arranged in upper and lower, the two sides of the frame body in lower portion are close to bottom and are provided with through slot, the through slot inner cavity is all equipped with bearing plate, the top of the bearing plate is all provided with connecting groove, by the mutual cooperation between the structure such as U-shaped rod, connecting heating plate, magnet, bearing plate, it can realize the pushing arc-shaped rod, arc-shaped rod is driven to swing by limiting U-shaped plate swing frame, magnet can be connected to adjacent two swing frames, limiting heating plate heats and dries above lithium battery diaphragm, limit elastic plate is moved upward, limit elastic plate is moved by top plate and drives connecting heating plate, connecting heating plate heats and dries below lithium battery diaphragm, after ending, limiting heating plate is disassembled again, and connecting heating plate returns to the inside of bearing plate.

Description

Technical Field

[0001] This invention relates to the field of lithium battery separator production technology, specifically a drying device for lithium battery separator production. Background Technology

[0002] In the structure of a lithium battery, the separator is one of the key internal components. The performance of the separator determines the battery's interface structure, internal resistance, and other characteristics, directly affecting the battery's capacity, cycle life, and safety performance. A high-performance separator plays an important role in improving the overall performance of the battery. In the production of lithium battery separators, a wet process is used. This process requires an extraction solution. The extractant forms a base film on the separator surface that does not contain pore-forming agents. After the extraction solution is applied, it needs to be dried.

[0003] However, existing lithium battery separator drying devices have some problems in use. The existing drying devices are not convenient to disassemble and assemble the heating and drying device. After the lithium battery separator is dried, if the heating and drying device is still inside the device, the operator may accidentally touch the heating and drying device when operating inside the device. The heating and drying device is hot and may cause burns to the operator's hands. At the same time, after the lithium battery separator is dried, it is not convenient to take out the separator of the required length, and it is not convenient to roll up and collect a certain amount of separator, which reduces the working efficiency of the device. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of the present invention is to provide a drying device for lithium battery separator production, which realizes the drying treatment of lithium battery separator, and the drying device can be disassembled to prevent operators from accidentally touching it. When it is necessary to cut and rewind the dried separator, the blade can cut it and extend the rewinding device to rewind the dried separator.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drying device for lithium battery separator production, comprising two frames arranged vertically. The lower frame has through slots on both its front and rear sides near the bottom, with a bearing plate penetrating through each slot. A connecting slot is formed on the top of each bearing plate, and blind holes are formed on corresponding sides of each bearing plate near the left and right sides. A connecting spring is fixedly connected to the inner cavity of two adjacent blind holes. A connecting heating plate is provided in the inner cavity of each connecting slot. A handle is fixedly connected to the side of each bearing plate away from the connecting heating plate. Three through holes are formed at the bottom of the lower frame, with vertical rods penetrating through each through hole. A top plate is fixedly connected to the top of each vertical rod. A limiting elastic plate is fixedly connected to the bottom of the three vertical rods at their bottom ends. The top of the limiting elastic plate is fixedly connected to the bottom of the lower frame near the front and rear sides. An adjustment mechanism is provided in the inner cavity of the upper frame, and a winding mechanism is provided on the front side of the lower frame.

[0006] Preferably, the adjustment mechanism includes three U-shaped rods. A horizontal groove is formed at the top of the upper frame near the front and rear sides. The bottom end of each U-shaped rod passes through an adjacent horizontal groove. A connecting U-shaped plate is fixedly connected to the bottom end of each U-shaped rod. A swing frame is hinged to the inner cavity of the connecting U-shaped plate. A limiting heating plate is fixedly connected to the inner cavity of each swing frame. A fixing rod is fixedly connected to the left and right sides of each swing frame. A limiting plate is fixedly connected to the end of each fixing rod away from the swing frame. A limiting U-shaped plate is fitted onto the outer edge of each limiting plate. A groove is formed on the corresponding side of the frame near the front and rear sides. An arc-shaped rod is fixedly connected to the side of each limiting U-shaped plate near the inner wall of the frame. The end of each arc-shaped rod away from the limiting U-shaped plate passes through an adjacent groove. A blind groove is formed at the bottom of each swing frame. A magnet is fixedly connected to the inner cavity of each blind groove.

[0007] Preferably, the winding mechanism includes a circular tube with a connecting plate fixedly connected to its front end. Circular grooves are provided on both the front and rear sides of the lower frame. Four connecting elastic plates are fixedly connected to the inner cavities of each circular groove. The rear end of the circular tube passes through the front circular groove. A connecting cylinder is provided in the inner cavity of the circular tube. A limiting plate is fixedly connected to the rear end of the connecting cylinder. A fixing post is fixedly connected to the rear side of the limiting plate. A connecting hole is provided at the front end of the connecting cylinder. A limiting rod is fixedly connected to the rear side of the connecting plate. The rear end of the limiting rod passes through the connecting hole and is fixedly connected to an adjusting plate.

[0008] Several limiting U-shaped blocks are fixedly connected to the outer edge of the connecting cylinder. Each limiting U-shaped block has a limiting swing plate hinged to its inner cavity. Each limiting swing plate has a limiting hole on the side away from the connecting cylinder. A limiting spring is fixedly connected to the inner cavity of the limiting hole. Each limiting swing plate has a connecting swing plate on the side away from the connecting cylinder. Each connecting swing plate has an adjustment hole on the side near the connecting cylinder. The end of each limiting spring away from the connecting cylinder is fixedly connected to the inner cavity of an adjacent adjustment hole. Each connecting U-shaped block has a connecting U-shaped block hinged to the outer edge of the connecting swing plate away from the connecting cylinder. Four limiting arc plates are provided on the outer edge of the connecting cylinder. The four limiting arc plates are located in the inner cavity of the circular tube. The side of each connecting U-shaped block away from the connecting cylinder is fixedly connected to the side of an adjacent limiting arc plate.

[0009] Preferably, the inner cavity of the connecting plate is provided with triangular holes near the top, the front side of the connecting plate is provided with two first threaded holes, the front side of the connecting plate is provided with a triangular frame, and the left and right sides of the triangular frame are fixedly connected with support plates near the rear side. The inner cavity of the support plates is provided with second threaded holes, and the inner cavity of the second threaded holes is engaged with a threaded rod. The rear end of the threaded rod is engaged with the inner cavity of the adjacent first threaded hole. The bottom of the triangular frame is provided with an adjustment groove, and the inner cavity of the triangular frame is provided with a blade. The bottom of the blade is fixedly connected with a connecting post near the front side, and the bottom end of the connecting post passes through the adjustment groove.

[0010] Preferably, limiting frames are fixedly connected to both the left and right sides of the inner cavity of the upper frame, and each limiting frame is provided with a scraper. Several drainage holes are opened at the top of the upper frame.

[0011] Preferably, fixed plates are fixedly connected to the left and right sides of the frame near the front and rear sides, and a roller is inserted between two adjacent fixed plates. Limiting grooves are opened on the corresponding side of the frame near the left and right sides. Connecting arc plates are fixedly connected to the left and right sides of the lower frame near the bottom, and arc grooves are opened on the corresponding side of the connecting arc plates. Slider blocks are fixedly connected to the left and right sides of the upper frame near the rear side, and the sliders are located in the inner cavity of the adjacent arc grooves.

[0012] Preferably, support columns are fixedly connected to the bottom of the lower frame near the four corners, and two handles are fixedly connected to the front side of the upper frame near the top.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention utilizes the interplay between a U-shaped rod, a connecting heating plate, a magnet, and a support plate to achieve the following: the arc-shaped rod is pushed, and the arc-shaped rod drives the swing frame to swing via a limiting U-shaped plate. The magnet connects two adjacent swing frames. The limiting heating plate heats and dries the area above the lithium battery separator. The limiting elastic plate moves upward, and the limiting elastic plate drives the connecting heating plate to move via a top plate. The connecting heating plate heats and dries the area below the lithium battery separator. After completion, the limiting heating plate is disassembled, and the connecting heating plate returns to the inside of the support plate.

[0015] Through the cooperation of structures such as the blade, the limiting arc plate, the connecting cylinder, and the round tube, the connecting plate can be moved to the rear, moving the round tube and the limiting plate into the lower frame. Then, the blade is pushed, and the blade pushes the limiting plate to move. Alternatively, the limiting plate can be moved by holding the fixed column and pulling it. Subsequently, the limiting arc plate is elastically reset by the limiting spring. Similar to the diameter of the round tube, the blade can cut the lithium battery separator of the required length when moving, and the cut lithium battery separator is wound around the surface of the round tube and the limiting arc plate, thereby winding and collecting it. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a schematic diagram of the lower frame structure of the component of the present invention;

[0018] Figure 3 This is an exploded view of the lower frame of the component of the present invention;

[0019] Figure 4 This is a schematic diagram of the U-shaped rod structure of the component of the present invention;

[0020] Figure 5 This is a schematic diagram of the scraper structure of the component of the present invention;

[0021] Figure 6 This is a schematic diagram of the connecting cylinder structure of the component of the present invention;

[0022] Figure 7 This is a schematic diagram of the limiting spring structure of the component of the present invention;

[0023] Figure 8 This is a schematic diagram of the limiting rod structure of the component of the present invention;

[0024] Figure 9 This is a schematic diagram of the triangular frame structure of the component of the present invention;

[0025] Figure 10 This is a schematic diagram of the connecting column structure of the component of the present invention;

[0026] Figure 11 This is a flipped and unfolded view of the component frame of the present invention.

[0027] Labels in the diagram: 1. Frame; 2. Support column; 3. Fixing plate; 4. Roller; 5. Connecting arc plate; 6. Bearing plate; 7. Round tube; 8. Connecting disc; 9. Triangular frame; 10. Blade; 11. Arc rod; 12. Handle; 13. U-shaped rod; 14. Grip; 15. Connecting spring; 16. Connecting heating plate; 17. Connecting elastic plate; 18. Top plate; 19. Vertical rod; 20. Limiting elastic plate; 21. Connecting U-shaped plate; 22. Limiting heating plate; 23. Swing 24. Moving frame; 25. Limiting plate; 26. Fixing rod; 27. Limiting U-shaped plate; 28. Limiting frame; 29. ​​Scraper; 30. Slider; 31. Connecting cylinder; 32. Limiting disc; 33. Fixing column; 34. Limiting arc plate; 35. Connecting U-shaped block; 36. Connecting swing plate; 37. Limiting swing plate; 38. Limiting U-shaped block; 39. Limiting rod; 40. Adjusting disc; 41. Support plate; 42. Threaded rod; 43. Connecting column; 44. Magnet. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This invention provides a technical solution:

[0030] Please see Figure 1-5 , Figure 11 A drying device for lithium battery separator production includes two frames 1, which are arranged vertically. The lower frame 1 has through slots on both its front and rear sides near the bottom, with a bearing plate 6 penetrating through each slot. Each bearing plate 6 has a connecting slot on its top, and blind holes on corresponding sides near the left and right sides. A connecting spring 15 is fixedly connected to the inner cavity of two adjacent blind holes. A connecting heating plate 16 is fixedly provided in the inner cavity of the connecting slot. A handle 14 is fixedly connected to the side of the bearing plate 6 away from the connecting heating plate 16. Three through holes are located at the bottom of the lower frame 1, with vertical rods 19 penetrating through each through hole. A top plate 18 is fixedly connected to the top of each vertical rod 19. A limiting elastic plate 20 is fixedly connected to the bottom of the lower frame 1 at the bottom of the three vertical rods 19. The top of the limiting elastic plate 20 is fixedly connected to the bottom of the lower frame 1 near its front and rear sides. An adjustment mechanism is located in the inner cavity of the upper frame 1, and a winding mechanism is located on the front side of the lower frame 1.

[0031] The adjustment mechanism includes three U-shaped rods 13. A horizontal groove is provided at the top of the upper frame 1 near the front and rear sides. The bottom end of each U-shaped rod 13 passes through an adjacent horizontal groove. A connecting U-shaped plate 21 is fixedly connected to the bottom end of each U-shaped rod 13. A swing frame 23 is hinged to the inner cavity of the connecting U-shaped plate 21. A limiting heating plate 22 is fixedly connected to the inner cavity of each swing frame 23. A fixing rod 25 is fixedly connected to the left and right sides of each swing frame 23. A limiting plate 24 is fixedly connected to the end of each fixing rod 25 away from the swing frame 23. A limiting U-shaped plate 26 is fitted onto the outer edge of each limiting plate 24. A groove is provided on the corresponding side of the frame 1 near the front and rear sides. An arc-shaped rod 11 is fixedly connected to the side of the limiting U-shaped plate 26 near the inner wall of the frame 1. The end of the arc-shaped rod 11 away from the limiting U-shaped plate 26 passes through an adjacent groove. A blind groove is provided at the bottom of each swing frame 23. A magnet 44 is fixedly connected to the inner cavity of each blind groove.

[0032] Limiting frames 27 are fixedly connected to the left and right sides of the inner cavity of the upper frame 1. Each limiting frame 27 has a scraper 28 in its inner cavity. Several drainage holes are opened at the top of the upper frame 1. Fixed plates 3 are fixedly connected to the left and right sides of the frame 1 near the front and rear sides. A roller 4 is inserted between two adjacent fixed plates 3. Limiting grooves are opened on the corresponding side of the frame 1 near the left and right sides. Connecting arc plates 5 are fixedly connected to the left and right sides of the lower frame 1 near the bottom. Arc grooves are opened on the corresponding side of the connecting arc plates 5. Slider 29 are fixedly connected to the left and right sides of the upper frame 1 near the rear side. The slider 29 is located in the inner cavity of the adjacent arc groove. Support columns 2 are fixedly connected to the bottom of the lower frame 1 near the four corners. Two handles 12 are fixedly connected to the front side of the upper frame 1 near the top.

[0033] Push the arc-shaped rod 11, which drives the swing frame 23 to swing through the limiting U-shaped plate 26. The magnet 44 can connect two adjacent swing frames 23. The limiting heating plate 22 heats and dries the upper part of the lithium battery separator. Move the limiting elastic plate 20 upward, which drives the connecting heating plate 16 to move through the top plate 18. The connecting heating plate 16 heats and dries the lower part of the lithium battery separator. After the process is completed, the limiting heating plate 22 is removed and the connecting heating plate 16 returns to the inside of the carrier plate 6.

[0034] Further, please refer to Figure 1 , Figure 6-10The winding mechanism includes a round tube 7, with a connecting plate 8 fixedly connected to the front end of the round tube 7. Circular grooves are opened on both the front and rear sides of the lower frame 1. Four connecting elastic plates 17 are fixedly connected to the inner cavity of each circular groove. The rear end of the round tube 7 passes through the front circular groove. A connecting cylinder 30 is provided in the inner cavity of the round tube 7. A limiting plate 31 is fixedly connected to the rear end of the connecting cylinder 30. A fixing post 32 is fixedly connected to the rear side of the limiting plate 31. A connecting hole is opened at the front end of the connecting cylinder 30. A limiting rod 39 is fixedly connected to the rear side of the connecting plate 8. The rear end of the limiting rod 39 passes through the connecting hole and is fixedly connected to an adjusting plate 40.

[0035] Several limiting U-shaped blocks 38 are fixedly connected to the outer edge of the connecting cylinder 30. Each limiting U-shaped block 38 has a limiting swing plate 37 hinged to its inner cavity. Each limiting swing plate 37 has a limiting hole on the side away from the connecting cylinder 30. A limiting spring 36 is fixedly connected to the inner cavity of the limiting hole. Each limiting swing plate 37 has a connecting swing plate 35 on the side away from the connecting cylinder 30. Each connecting swing plate 35 has an adjustment hole on the side close to the connecting cylinder 30. The end of the limiting spring 36 away from the connecting cylinder 30 is fixedly connected to the inner cavity of the adjacent adjustment hole. Each connecting U-shaped block 34 is hinged to the outer edge of the connecting swing plate 35 on the side away from the connecting cylinder 30. Four limiting arc plates 33 are provided on the outer edge of the connecting cylinder 30. The four limiting arc plates 33 are located in the inner cavity of the circular tube 7. The side of the connecting U-shaped block 34 away from the connecting cylinder 30 is fixedly connected to the side of the adjacent limiting arc plate 33.

[0036] Triangular holes are provided near the top of the inner cavity of the connecting plate 8. Two first threaded holes are provided on the front side of the connecting plate 8. A triangular frame 9 is provided on the front side of the connecting plate 8. Support plates 41 are fixedly connected to the left and right sides of the triangular frame 9 near the rear side. Second threaded holes are provided in the inner cavity of the support plates 41. Threaded rods 42 are engaged in the inner cavity of the second threaded holes. The rear end of the threaded rods 42 is engaged in the inner cavity of the adjacent first threaded holes. An adjustment groove is provided at the bottom of the triangular frame 9. A blade 10 is provided in the inner cavity of the triangular frame 9. A connecting post 43 is fixedly connected to the bottom of the blade 10 near the front side. The bottom end of the connecting post 43 passes through the adjustment groove.

[0037] Move the connecting plate 8 to the rear, move the round tube 7 and the limiting plate 31 into the lower frame 1, and then push the blade 10. The blade 10 pushes the limiting plate 31 to move, or hold the fixing post 32 and pull the limiting plate 31 to move. Then the limiting arc plate 33 is elastically reset by the limiting spring 36. Similar to the diameter of the round tube 7, the blade 10 can cut the lithium battery separator of the required length when moving, and wrap the cut lithium battery separator around the surface of the round tube 7 and the limiting arc plate 33, so as to collect it.

[0038] Working principle: When the device starts working, the operator passes one side of the lithium battery separator between the left sides of the two frames 1. As the lithium battery separator passes through, it contacts the roller 4, which rotates. The holes on the surface of the roller 4 increase the friction with the surface of the lithium battery separator. Then, the operator pushes the arc-shaped rod 11 and rotates it. The arc-shaped rod 11 drives the limiting plate 24 to rotate through the limiting U-shaped plate 26. The limiting plate 24 drives the swing frame 23 to swing through the fixed rod 25. The swing frame 23 drives the limiting heating plate 22 and the magnet 4 to swing. 4. The two corresponding magnets 44 attract each other, and the swing frame 23 is brought to a horizontal position by the magnets 44. The limiting heating plate 22 heats and dries the upper part of the lithium battery separator, and then pushes the limiting elastic plate 20 upward. The limiting elastic plate 20 drives the vertical rod 19 to move, the vertical rod 19 drives the top plate 18 to move, and the top plate 18 drives the connecting heating plate 16 to move upward. The connecting heating plate 16 heats and dries the lower part of the lithium battery separator. During the heating and drying process, the generated water vapor will adhere to the upper part. After heating and drying, the limiting elastic plate 20 is released from the inner wall of the frame 1, causing the vertical rod 19 and the top plate 18 to move downwards, and the connecting heating plate 16 also moves downwards. If it is necessary to reposition the connecting heating plate 16 between the support plates 6, the handle 14 is pulled. The handle 14 moves the support plate 6, and the support plate 6 stretches the connecting spring 15, thus allowing the connecting heating plate 16 to enter between the support plates 6. Then, the U-shaped rod 13 is moved upwards, and the U-shaped rod 13 drives the swing frame 23 through the connecting U-plate 21. Move the frame 23 so that its top contacts the top of the inner cavity of the upper frame 1. The magnet 44 is subjected to external force and the magnets 44 separate from each other. The limiting heating plate 22 is removed and disassembled. Then, hold the handle 12 and the handle 12 drives the upper frame 1 to swing. The upper frame 1 is flipped in the arc groove inside the connecting arc plate 5 by the slider 29. The arc rod 11 and the limiting U-shaped plate 26 are disassembled. The scraper 28 is taken out from inside the limiting frame 27. The scraper 28 can scrape the water droplets inside the upper frame 1.

[0039] After the lithium battery separator is heated and dried, the operator needs to cut the separator to the required length. At this point, the connecting plate 8 is pushed backward, causing the limiting plate 31 to move via the circular tube 7. The circular tube 7 and the limiting plate 31 are now inside the lower frame 1. Then, the blade 10 is pushed backward, causing the connecting post 43 to move. The blade 10 passes through the triangular frame 9 and the connecting plate 8, and is positioned at the top of the circular tube 7. The rear of the blade 10 will touch the front of the limiting plate 31, causing it to move backward. When the limiting plate 31 reaches its limit position, the operator grasps the fixing post 32, which moves the limiting plate 31. The limiting plate 31 then moves the connecting cylinder 30, which in turn moves the limiting arc plate 33. When the limit arc plate 33 moves out of the inside of the round tube 7, the elasticity of the limit spring 36 will drive the limit arc plate 33 to reset. The diameter of the four limit arc plates 33 is similar to the diameter of the round tube 7. At the same time, when the blade 10 moves, the blade 10 will cut the lithium battery separator and wrap the cut lithium battery separator around the surface of the round tube 7 and the limit arc plate 33, thereby collecting the lithium battery separator. When it is necessary to remove the round tube 7 and other components from the inside of the lower frame 1, simply pull out the connecting plate 8 or the limit plate 31 to one side of the adjacent connecting elastic plate 17. After the blade 10 is used, place the blade 10 back inside the triangular frame 9 and rotate the threaded rod 42. The threaded rod 42 moves away from the support plate 41 and the connecting plate 8, thereby disassembling the triangular frame 9 and the blade 10.

[0040] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying apparatus for lithium battery separator production, comprising two frames (1), characterized in that: The two frames (1) are arranged vertically. The lower frame (1) has through slots on both its front and rear sides near the bottom. Each through slot has a bearing plate (6) running through it. Each bearing plate (6) has a connecting slot on its top. Each bearing plate (6) has blind holes on its corresponding side near its left and right sides. Two adjacent blind holes are fixedly connected to a connecting spring (15). Each connecting slot has a connecting heating plate (16). The side of the bearing plate (6) away from the connecting heating plate (16) is fixedly connected to the connecting heating plate (16). A handle (14) is fixedly connected to the bottom of the lower frame (1). Three through holes are provided at the bottom of the lower frame (1). Vertical rods (19) are provided through the inner cavity of each through hole. A top plate (18) is fixedly connected to the top of each vertical rod (19). A limiting elastic plate (20) is fixedly connected to the bottom of the lower frame (1) at the top of the limiting elastic plate (20) near the front and rear sides. An adjustment mechanism is provided in the inner cavity of the upper frame (1). A winding mechanism is provided on the front side of the lower frame (1). The adjustment mechanism includes three U-shaped rods (13). A horizontal groove is provided at the top of the upper frame (1) near the front and rear sides. The bottom end of each U-shaped rod (13) passes through an adjacent horizontal groove. A connecting U-shaped plate (21) is fixedly connected to the bottom end of each U-shaped rod (13). A swing frame (23) is hinged to the inner cavity of the connecting U-shaped plate (21). A limit heating plate (22) is fixedly connected to the inner cavity of each swing frame (23). Fixed rods (25) are fixedly connected to the left and right sides of each swing frame (23). The fixed rods (25) are located away from the swing frame. One end of the frame (23) is fixedly connected to a limiting plate (24). The outer edge of the limiting plate (24) is fitted with a limiting U-shaped plate (26). The corresponding side of the frame (1) is provided with a groove near the front and rear sides. The side of the limiting U-shaped plate (26) near the inner wall of the frame (1) is fixedly connected with an arc rod (11). The end of the arc rod (11) away from the limiting U-shaped plate (26) passes through the adjacent groove. The bottom of the swing frame (23) is provided with a blind groove. The inner cavity of the blind groove is fixedly connected with a magnet (44).

2. The drying apparatus for lithium battery separator production according to claim 1, characterized in that: The winding mechanism includes a round tube (7), with a connecting plate (8) fixedly connected to the front end of the round tube (7). Circular grooves are provided on both the front and rear sides of the frame (1) below. Four connecting elastic plates (17) are fixedly connected to the inner cavity of each circular groove. The rear end of the round tube (7) passes through the front circular groove. A connecting cylinder (30) is provided in the inner cavity of the round tube (7). A limiting plate (31) is fixedly connected to the rear end of the connecting cylinder (30). A fixing column (32) is fixedly connected to the rear side of the limiting plate (31). A connecting hole is provided at the front end of the connecting cylinder (30). A limiting rod (39) is fixedly connected to the rear side of the connecting plate (8). The rear end of the limiting rod (39) passes through the connecting hole and is fixedly connected to an adjusting plate (40). Several limiting U-shaped blocks (38) are fixedly connected to the outer edge of the connecting cylinder (30). Each limiting U-shaped block (38) has a limiting swing plate (37) hinged to its inner cavity. Each limiting swing plate (37) has a limiting hole on the side away from the connecting cylinder (30). A limiting spring (36) is fixedly connected to the inner cavity of the limiting hole. Each limiting swing plate (37) has a connecting swing plate (35) on the side away from the connecting cylinder (30). Each connecting swing plate (35) has an adjustment mechanism on the side closer to the connecting cylinder (30). The end of the limiting spring (36) away from the connecting cylinder (30) is fixedly connected to the inner cavity of the adjacent adjusting hole. The outer edge of the connecting swing plate (35) away from the connecting cylinder (30) is hinged with a connecting U-shaped block (34). The outer edge of the connecting cylinder (30) is provided with four limiting arc plates (33). The four limiting arc plates (33) are located in the inner cavity of the round tube (7). The side of the connecting U-shaped block (34) away from the connecting cylinder (30) is fixedly connected to the side of the adjacent limiting arc plate (33).

3. The drying apparatus for lithium battery separator production according to claim 2, characterized in that: The inner cavity of the connecting plate (8) is provided with triangular holes near the top. The front side of the connecting plate (8) is provided with two first threaded holes. The front side of the connecting plate (8) is provided with a triangular frame (9). The left and right sides of the triangular frame (9) are fixedly connected with support plates (41) near the rear side. The inner cavity of the support plate (41) is provided with second threaded holes. The inner cavity of the second threaded hole is engaged with a threaded rod (42). The rear end of the threaded rod (42) is engaged with the inner cavity of the adjacent first threaded hole. The bottom of the triangular frame (9) is provided with an adjustment groove. The inner cavity of the triangular frame (9) is provided with a blade (10). The bottom of the blade (10) is fixedly connected with a connecting column (43) near the front side. The bottom end of the connecting column (43) passes through the adjustment groove.

4. The drying apparatus for lithium battery separator production according to claim 1, characterized in that: Limiting frames (27) are fixedly connected to the left and right sides of the inner cavity of the frame (1) above. Each limiting frame (27) has a scraper (28) in its inner cavity. Several drainage holes are opened at the top of the frame (1) above.

5. A drying apparatus for lithium battery separator production according to claim 1, characterized in that: The frame (1) has fixed plates (3) fixedly connected to the left and right sides near the front and rear sides. A roller (4) is inserted between two adjacent fixed plates (3). A limit groove is opened on the corresponding side of the frame (1) near the left and right sides. A connecting arc plate (5) is fixedly connected to the left and right sides near the bottom of the lower frame (1). An arc groove is opened on the corresponding side of the connecting arc plate (5). A slider (29) is fixedly connected to the left and right sides near the rear side of the upper frame (1). The slider (29) is located in the inner cavity of the adjacent arc groove.

6. A drying apparatus for lithium battery separator production according to claim 1, characterized in that: Support columns (2) are fixedly connected to the bottom of the lower frame (1) near the four corners, and two handles (12) are fixedly connected to the front side of the upper frame (1) near the top.

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