Battery diaphragm extraction equipment

Abstract

The utility model relates to the technical field of wet lithium battery diaphragm production, in particular to battery diaphragm extraction equipment. Comprising an extraction equipment body, an extraction mechanism and a heating mechanism, a placement groove is formed in the extraction equipment body, the extraction mechanism is fixedly arranged in the placement groove, the heating mechanism is arranged on one side of the extraction mechanism, and the input end of the extraction mechanism and the input end of the heating mechanism are each provided with a first carrier roller for bearing a battery diaphragm. According to the battery diaphragm extraction equipment provided by the utility model, through the design of the liquid scraping and cleaning assembly, the residual extraction liquid in the previous extraction tank on the surface of the battery diaphragm is scraped, so that the mutual influence of the concentration of dichloromethane between the adjacent extraction tanks is avoided; the concentration of the extraction liquid in the plurality of extraction tanks is always kept in an initial set value range, and the extraction efficiency of the battery diaphragm is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wet lithium battery diaphragms, in particular to a battery diaphragm extraction device. Background Art

[0002] Diaphragm wet extraction is a preparation method for treating membrane materials through wet processes. Its basic principle is to dissolve the membrane materials in a solvent and then perform subsequent treatments as needed. This method can significantly reduce environmental pollution compared to traditional dry production and simultaneously provide higher-quality lithium-ion battery diaphragms.

[0003] The battery diaphragm extraction devices in the prior art usually adopt multi-stage countercurrent extraction devices. After the battery diaphragm is soaked and extracted in a low-concentration extraction liquid, it will move to a higher-concentration extraction liquid in the next stage to continuously reduce the residual amount of white oil through step-by-step extraction, so that the concentration difference of the solute in the extraction liquid can be effectively utilized to improve the extraction efficiency of the battery diaphragm. However, in the actual operation process, we found that during the extraction process, the battery diaphragm needs to pass through each roller and enter extraction tanks with different concentrations in sequence to extract the white oil in the battery diaphragm. Since most of the battery diaphragm extraction devices in the prior art do not have a device for cleaning the surface of the battery diaphragm, when the battery diaphragm enters the next extraction tank from the previous extraction tank, the extraction liquid in the previous extraction tank will continuously be brought onto the surface of the battery diaphragm and enter the next extraction tank. Due to the large amount of liquid carried, there is an interaction between the dichloromethane concentrations in the extraction tank and the adjacent extraction tank, thereby reducing the concentration of the extraction liquid in the next extraction tank and affecting the extraction efficiency of the battery diaphragm extraction;

[0004] On the other hand, after the extraction of the battery diaphragm in the prior art, it is mostly necessary to perform a drying treatment on the battery diaphragm. Since a certain amount of extraction liquid often adheres to the surface of the battery diaphragm after extraction, if the extracted battery diaphragm is directly dried, the extraction liquid remaining on the surface of the battery diaphragm often forms water marks on the surface of the battery diaphragm, affecting the forming quality of the battery diaphragm after extraction. Moreover, most of the drying devices for battery diaphragms in the prior art cannot adjust the distance between the battery diaphragm and the heating mechanism. If the battery diaphragm and the heating mechanism are always kept at the same distance, the staff needs to adjust the winding speed of the battery diaphragm to prevent the heating mechanism from over-drying the battery diaphragm. However, too fast a winding speed often affects the quality of the battery diaphragm during extraction, easily causing the white oil inside the battery diaphragm to not be completely removed, thereby affecting the forming quality of the battery diaphragm.

[0005] Therefore, we designed a battery diaphragm extraction device to provide another technical solution for the above technical problems. Summary of the Utility Model

[0006] Based on this, it is necessary to provide a battery separator extraction device with relatively high extraction efficiency and relatively high forming quality for the above technical problems.

[0007] To solve the above technical problems, the following technical solutions are adopted in the present utility model:

[0008] A battery separator extraction device includes an extraction device main body, an extraction mechanism and a heating mechanism. An installation groove is formed on the extraction device main body. The extraction mechanism is fixedly arranged in the installation groove. The heating mechanism is arranged on one side of the extraction mechanism. A first supporting roller for receiving the battery separator is provided at the input ends of both the extraction mechanism and the heating mechanism. The extraction mechanism includes an extraction tank, a transfer tank and a cleaning tank fixedly arranged inside the installation groove. There are multiple extraction tanks and transfer tanks, and the transfer tank is arranged between two extraction tanks. The cleaning tank is arranged on one side of the last extraction tank. A plurality of conveying rollers for conveying are provided on the extraction tank, the transfer tank and the cleaning tank.

[0009] Preferably, the extraction mechanism includes a liquid scraping and cleaning assembly. The liquid scraping and cleaning assembly includes scraping knives arranged on the output sides of the extraction tank, the transfer tank and the cleaning tank. There are multiple scraping knives and they are movably arranged on both sides of the battery separator. Moving blocks I are fixedly connected to both sides of the scraping knives. A plurality of balls are rotatably connected to the upper and lower ends of the moving blocks I. Installation grooves matching the moving blocks I and the balls are formed on the extraction device main body, the extraction tank, the transfer tank and the cleaning tank. A first threaded rod is threadedly connected to the middle of one of the moving blocks I. The two ends of the first threaded rod are rotatably connected to the inner wall of the installation groove.

[0010] Preferably, a transmission shaft is arranged on one side of the first threaded rod. The two ends of the transmission shaft are rotatably connected to the inner wall of the installation groove. Driven belt wheels are fixedly connected to one sides of the plurality of first threaded rods. A driving belt wheel matching the driven belt wheels is fixedly connected to the transmission shaft. A first synchronous belt for transmission is sleeved on the driven belt wheels and the driving belt wheel. A driven bevel gear is fixedly connected to one side of the transmission shaft. A driving bevel gear is meshed with the driven bevel gear. A first driving motor is arranged on one side of the driving bevel gear. An installation plate facilitating the installation of the first driving motor is arranged on the extraction device main body. The output end of the first driving motor penetrates through the installation plate and is fixedly connected to the driving bevel gear.

[0011] Preferably, the plurality of conveying rollers located on the side of the extraction tank, the transfer tank and the cleaning tank close to the liquid scraping and cleaning assembly correspond to each other in pairs, and the distance between each two conveying rollers is slightly larger than the thickness of the largest specification battery separator.

[0012] Preferably, the heating mechanism includes a heating chamber fixedly arranged on one side of the idler roller. Openings for the battery separator to enter and exit are formed on both sides of the heating chamber. A second idler roller for receiving the battery separator is rotatably connected at each of the plurality of openings. Two sets of symmetrically arranged electric heating modules are movably connected inside the heating chamber. A plurality of second moving blocks are fixedly arranged on both sides of the electric heating module. A guiding sliding groove matching with the second moving block is arranged on the heating chamber. A second threaded rod is threadedly connected to the middle of the second moving block.

[0013] Preferably, one ends of the plurality of second threaded rods are rotatably connected to the bottom wall of the guiding sliding groove. The other ends of the second threaded rods penetrate through the guiding sliding groove and extend to the outside of the heating chamber. A synchronous pulley is fixedly connected to a section of the second threaded rod located outside the heating chamber. A second synchronous belt for transmission is sleeved on the synchronous pulley. An L-shaped mounting plate is arranged on one side of one of the second threaded rods. The L-shaped mounting plate is fixedly arranged at the top of the heating chamber. A second driving motor is fixedly arranged at the top of the L-shaped mounting plate. The output end of the second driving motor penetrates through the L-shaped mounting plate and is fixedly connected to the second threaded rod.

[0014] It can be undoubtedly seen that through the above technical solutions of the present application, the technical problems to be solved by the present application can surely be solved.

[0015] Meanwhile, through the above technical solutions, the present utility model has at least the following beneficial effects:

[0016] 1. A battery separator extraction device provided by the present utility model, through the design of the liquid scraping and cleaning assembly, scrapes the extraction liquid remaining on the surface of the battery separator in the previous extraction tank, thereby avoiding the mutual influence of the dichloromethane concentrations between adjacent extraction tanks, keeping the extraction liquid concentrations in multiple extraction tanks within the initial set value range all the time, and improving the extraction efficiency of the battery separator.

[0017] 2. A battery separator extraction device provided by the present utility model, through the design of the cleaning tank, cleans the extraction liquid remaining on the surface of the battery separator, thereby avoiding the extraction liquid remaining during the drying process of the battery separator from forming water marks on the surface of the battery separator and improving the forming quality of the battery separator after extraction.

[0018] 3. A battery separator extraction device provided by the present utility model, through the design of the heating mechanism, facilitates the staff to adjust the distance between the heating mechanism and the battery separator, thereby while ensuring the extraction quality of the battery separator, avoiding the heating mechanism from over-drying the battery separator and further improving the forming quality of the battery separator after extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is an axonometric structure schematic diagram of the present utility model;

[0021] Figure 2 It is a top view structure schematic diagram of the present utility model;

[0022] Figure 3 It is a structure schematic diagram of the battery separator in a wound state of the present utility model;

[0023] Figure 4 It is a sectional view structure schematic diagram of the extraction equipment main body and the extraction mechanism of the present utility model in a top view state;

[0024] Figure 5 It is a sectional view structure schematic diagram of the extraction equipment main body and the extraction mechanism of the present utility model in an axonometric state;

[0025] Figure 6 For the present utility model Figure 5 Schematic diagram of the structure at position A;

[0026] Figure 7 It is a sectional view structure schematic diagram of the heating mechanism of the present utility model.

[0027] In the figure: 1. Extraction equipment main body; 2. Placement groove; 3. First supporting roller; 4. Extraction tank; 5. Transfer tank; 6. Cleaning tank; 7. Conveyor roller; 8. Scraping blade; 9. First moving block; 10. Ball; 11. Installation groove; 12. First threaded rod; 13. Transmission shaft; 14. Driven belt pulley; 15. Driving belt pulley; 16. First synchronous belt; 17. Driven bevel gear; 18. Driving bevel gear; 19. First driving motor; 20. Installation plate; 21. Heating cavity; 22. Opening; 23. Second supporting roller; 24. Electric heating module; 25. Second moving block; 26. Guide chute; 27. Second threaded rod; 28. Synchronous belt pulley; 29. Second synchronous belt; 30. L-shaped installation plate; 31. Second driving motor. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Embodiment

[0030] Referring to Figures 1-7 , a battery separator extraction device includes an extraction device main body 1, an extraction mechanism and a heating mechanism. An installation groove 2 is formed on the extraction device main body 1. The extraction mechanism is fixedly arranged in the installation groove 2. The heating mechanism is arranged on one side of the extraction mechanism. A first supporting roller 3 for receiving the battery separator is provided at the input ends of both the extraction mechanism and the heating mechanism. The extraction mechanism includes an extraction tank 4, a transfer tank 5 and a cleaning tank 6 fixedly arranged inside the installation groove 2. There are multiple extraction tanks 4 and transfer tanks 5, and the transfer tank 5 is arranged between two extraction tanks 4. The cleaning tank 6 is arranged on one side of the last extraction tank 4. A plurality of conveying rollers 7 for conveying are provided on the extraction tank 4, the transfer tank 5 and the cleaning tank 6. Specifically, the concentration of the extraction liquid in the extraction tank 4 increases sequentially from left to right. Through this design, in cooperation with the subsequent scraping and cleaning assembly, it is avoided that the dichloromethane concentrations between the extraction tank 4 and the adjacent extraction tank 4 affect each other, so that the concentration of the extraction liquid in multiple extraction tanks 4 always remains within the initial set value range. Thus, after the battery separator is soaked in the low-concentration extraction liquid, it can move to the next higher-concentration extraction liquid, and the residual amount of white oil is continuously reduced through step-by-step extraction, so that the concentration difference of the solution in the extraction liquid is effectively utilized, and the extraction efficiency of the battery separator is improved. On the other hand, the solution in the cleaning tank 6 is a cleaning agent capable of removing the residual extraction liquid on the surface of the battery separator. Through this design, the residual cleaning agent on the surface of the battery separator is removed, and in cooperation with the scraping and cleaning assembly on its one side, the cleaning agent attached to the surface of the battery separator is scraped off, so that while improving the utilization efficiency of the cleaning agent, it is avoided that the cleaning agent remains on the surface of the battery separator, and the forming quality of the battery separator after extraction is improved;

[0031] It should be noted that in the present utility model, the concentration of the extraction liquid in multiple transfer tanks 5 is always the same as the concentration of the extraction liquid in the extraction tank 4 on its right side. Through this design, the battery separator scraped by the scraping knife 8 can first enter the transfer tank 5 and contact the extraction liquid in the transfer tank 5, and then flow into the next extraction tank 4 after being scraped by the next set of scraping knives 8. Thus, before the battery separator enters the next extraction tank 4, it can first contact the extraction liquid in the transfer tank 5 to further reduce the content of the extraction liquid in the previous extraction tank 4 attached to its inside, so as to avoid the mutual influence of the dichloromethane concentrations between the extraction tank 4 and the adjacent extraction tank 4 and improve the actual use effect of the device.

[0032] Referring to Figures 2-6, the extraction mechanism includes a liquid scraping and cleaning component. The liquid scraping and cleaning component includes liquid scraping knives 8 arranged on the output sides of the extraction tank 4, the transfer tank 5 and the cleaning tank 6. A plurality of liquid scraping knives 8 are provided and are movably arranged on both sides of the battery separator. Both sides of the liquid scraping knife 8 are fixedly connected with a first moving block 9. A plurality of balls 10 are rotatably connected to the upper and lower ends of the first moving block 9. Installation grooves 11 matching the first moving block 9 and the balls 10 are formed on the extraction device main body 1, the extraction tank 4, the transfer tank 5 and the cleaning tank 6. A first threaded rod 12 is threadedly connected to the middle of one of the first moving blocks 9. Both ends of the first threaded rod 12 are rotatably connected to the inner wall of the installation groove 11. Specifically, through the design of the liquid scraping and cleaning component, the extraction liquid remaining on the surface of the battery separator in the previous extraction tank 4 is scraped off, thereby avoiding the mutual influence of the dichloromethane concentrations between adjacent extraction tanks 4, keeping the extraction liquid concentrations in multiple extraction tanks 4 always within the initial set value range, improving the extraction efficiency of the battery separator. Moreover, through the design of the balls 10, the movement resistance of the first moving block 9 moving in the installation groove 11 is reduced, avoiding unnecessary jamming of the first moving block 9 during movement, and improving the actual use effect of the device;

[0033] It should be noted that in the present utility model, the liquid scraping knife 8 is made of silica gel material. Through this design, during the process of scraping the solution attached to the surface of the battery separator by the liquid scraping knife 8, unnecessary damage to the battery separator is effectively avoided, further improving the actual use effect of the device. On the other hand, the midpoint of the straight-line distance between the two liquid scraping knives 8 and the midpoint of the thickness of the battery separator are in the same vertical horizontal plane, and the threads on the first threaded rod 12 are designed as two sections of left-handed and right-handed threads with opposite helix directions. Through this design, it enables the staff to only rotate the first threaded rod 12, and the first moving block 9 threadedly connected to the first threaded rod 12 can drive the liquid scraping knife 8 to move in a centering manner in a back-to-back or face-to-face direction, so that the two liquid scraping knives 8 on the first threaded rod 12 can abut against both sides of the battery separator under the rotation of the first threaded rod 12 to scrape the solution attached to battery separators with different thicknesses, effectively reducing the limitations during the use of the device.

[0034] Refer to Figures 4-6, on one side of the first threaded rod 12, there is a transmission shaft 13. The two ends of the transmission shaft 13 are rotatably connected to the inner wall of the installation groove 11. On one side of each of the plurality of first threaded rods 12, there is a driven pulley 14 fixedly connected. On the transmission shaft 13, there is a driving pulley 15 fixedly connected and matching with the driven pulley 14. A first synchronous belt 16 for transmission is sleeved on the driven pulley 14 and the driving pulley 15. On one side of the transmission shaft 13, there is a driven bevel gear 17 meshed with a driving bevel gear 18. On one side of the driving bevel gear 18, there is a first driving motor 19. On the extraction equipment main body 1, there is a mounting plate 20 facilitating the installation of the first driving motor 19. The output end of the first driving motor 19 penetrates through the mounting plate 20 and is fixedly connected to the driving bevel gear 18. Specifically, through the design of the transmission shaft 13, the driving pulley 15, the driven pulley 14, the first synchronous belt 16, the driven bevel gear 17 and the driving bevel gear 18, it enables the staff to drive the plurality of first threaded rods 12 in the installation groove 11 to rotate synchronously only by using one first driving motor 19, so that the moving blocks 9 on the plurality of first threaded rods 12 can drive the scraping blade 8 to move synchronously towards or away from each other, thereby while ensuring the normal operation of the scraping and cleaning assembly, greatly reducing the production cost of the device and effectively improving the market competitiveness of the device.

[0035] Refer to Figure 3 , among which, a plurality of conveying rollers 7 on the side of the extraction tank 4, the transfer tank 5 and the cleaning tank 6 close to the scraping and cleaning assembly correspond to each other in pairs, and the distance between every two conveying rollers 7 is slightly larger than the thickness of the battery separator being conveyed. Specifically, through this design, when the battery separator conveyed by the conveying rollers 7 cooperates with the scraping and cleaning assembly, it can be in a vertical state close to 90 degrees, so that the scraping blade 8 can abut against both sides of the battery separator to scrape the solution attached to the surface of the battery separator, ensuring the normal operation of the scraping and cleaning assembly.

[0036] When it is necessary to scrape the solution attached to the surfaces of battery diaphragms with different thicknesses, the staff only need to bypass the battery diaphragms around the first supporting roller 3, the conveying roller 7 and the second supporting roller 23 in sequence and connect them to an external winding mechanism. Then, start the first driving motor 19 to drive the driving bevel gear 18 connected to its output end to rotate, thereby driving the driven bevel gear 17 meshed therewith to rotate, and driving the transmission shaft 13-1 fixedly connected to the middle of the driven bevel gear 17 to rotate. Thus, through the cooperation of the driving pulley 15, the driven pulley 14 and the first synchronous belt 16, drive a plurality of first threaded rods 12 to rotate synchronously, so that the moving block 1-9 threadedly connected to the first threaded rod 12 drives the scraping blade 8 fixedly connected thereto to move centrically. When the scraping blade 8 abuts against both sides of the battery diaphragm, the first driving motor 19 can be stopped. At this time, the scraping blades 8 abutting against both sides of the battery diaphragm can normally scrape the solution attached to the battery diaphragm.

[0037] Refer to Figure 3 With Figure 7 , the heating mechanism includes a heating chamber 21 fixedly arranged on one side of the first supporting roller 3. Openings 22 for the battery diaphragm to enter and exit are formed on both sides of the heating chamber 21. A plurality of second supporting rollers 23 for receiving the battery diaphragm are rotatably connected at the plurality of openings 22. Two groups of upper and lower symmetric electric heating modules 24 are movably connected inside the heating chamber 21. A plurality of moving blocks 2-25 are fixedly arranged on both sides of the electric heating module 24. A guiding sliding groove 26 matching the moving block 2-25 is arranged on the heating chamber 21. A second threaded rod 27 is threadedly connected to the middle of the moving block 2-25. Specifically, through the design of the electric heating module 24, the moving block 2-25, the guiding sliding groove 26 and the second threaded rod 27, it enables the staff to only rotate the second threaded rod 27, so that the moving block 2-25 threadedly connected to the second threaded rod 27 moves up and down in the guiding sliding groove 26 in an opposite or facing direction, thereby adjusting the position of the electric heating module 24 fixedly connected to the moving block 2-25, so as to perform just-right drying treatment on the battery diaphragm without changing the conveying speed of the battery diaphragm, and improving the forming quality of the battery diaphragm after extraction;

[0038] It should be noted that in the present utility model, the thread on the second threaded rod 27 is a design of two reverse-threaded threads with opposite helix directions. Through this design, it enables the staff to only rotate the second threaded rod 27, so that the moving block 2-25 threadedly connected to the second threaded rod 27 drives the electric heating module 24 to move in an opposite or facing direction centrically, so as to keep the best heating distance between the electric heating module 24 and the battery diaphragm, avoid over-drying the battery diaphragm, and improve the forming quality of the battery diaphragm after extraction.

[0039] Refer to Figure 2 With Figure 7, one end of each of the plurality of second threaded rods 27 is rotatably connected to the bottom wall of the guiding sliding groove 26, and the other end of the second threaded rod 27 penetrates through the guiding sliding groove 26 and extends to the outside of the heating chamber 21. A synchronous pulley 28 is fixedly connected to a section of the second threaded rod 27 located outside the heating chamber 21. A second synchronous belt 29 for transmission is sleeved on the synchronous pulley 28. An L-shaped mounting plate 30 is arranged on one side of one of the second threaded rods 27. The L-shaped mounting plate 30 is fixedly arranged at the top end of the heating chamber 21. A second driving motor 31 is fixedly arranged at the top end of the L-shaped mounting plate 30. The output end of the second driving motor 31 penetrates through the L-shaped mounting plate 30 and is fixedly connected to the second threaded rod 27. Specifically, through the design of the synchronous pulley 28, the second synchronous belt 29, the L-shaped mounting plate 30 and the second driving motor 31, the staff only needs to use one second driving motor 31 to drive the plurality of second threaded rods 27 in the guiding sliding groove 26 to rotate synchronously, so as to effectively reduce the production cost of the device while ensuring the horizontal lifting of the electric heating module 24, and further improve the market competitiveness of the device.

[0040] When it is necessary to adjust the distance between the electric heating module 24 and the battery diaphragm, the staff only needs to start the second driving motor 31 to drive one of the second threaded rods 27 to rotate, and through the cooperation of the synchronous pulleys 28 and the second synchronous belt 29 on the plurality of second threaded rods 27, drive the plurality of second threaded rods 27 to rotate synchronously, so that the second moving blocks 25 threadedly connected to the second threaded rods 27 drive the electric heating module 24 to move radially towards or away from the center, thereby completing the adjustment of the distance between the electric heating module 24 and the battery diaphragm.

[0041] The using process of a battery diaphragm extraction device provided by the present utility model is as follows:

[0042] When extracting the battery separator, the staff only needs to bypass the battery separator around the first idler roller 3, the conveying roller 7 and the second idler roller 23 in sequence and connect it to the external winding mechanism. Then, start the first driving motor 19 to drive the driving bevel gear 18 connected to its output end to rotate, thereby driving the driven bevel gear 17 meshed therewith to rotate, and driving the transmission shaft 13-1 fixedly connected to the middle of the driven bevel gear 17 to rotate. Thus, through the cooperation of the driving pulley 15, the driven pulley 14 and the first synchronous belt 16, drive a plurality of first threaded rods 12 to rotate synchronously, so that the moving block 9 threadedly connected to the first threaded rod 12 drives the scraping blade 8 fixedly connected thereto to move centrically. When the scraping blade 8 abuts against both sides of the battery separator, stop the first driving motor 19 and start the winding mechanism to wind the battery separator. The wound battery separator passes through a plurality of extraction tanks 4, a transfer tank 5 and a scraping and cleaning assembly in sequence and enters the cleaning tank 6, and the extraction liquid attached to the surface of the battery separator is soaked and cleaned by the cleaning agent in the cleaning tank 6. Then, the scraping and cleaning assembly arranged on one side of the cleaning tank 6 scrapes the cleaning agent attached to the battery separator. The battery separator after scraping enters the heating chamber 21 through the first idler roller 3 and the second idler roller 23. At this time, the electric heating module 24 in the heating chamber 21 dries the conveyed battery separator, and then the dried battery separator is wound by the winding mechanism, and the extraction of the battery separator can be completed;

[0043] When it is necessary to adjust the distance between the electric heating module 24 and the battery separator, the staff only needs to start the second driving motor 31 to drive one of the second threaded rods 27 to rotate, and through the cooperation of the synchronous belt pulleys 28 and the second synchronous belt 29 on the plurality of second threaded rods 27, drive the plurality of second threaded rods 27 to rotate synchronously, so that the moving block 25 threadedly connected to the second threaded rod 27 drives the electric heating module 24 to move centrically in the radial direction towards or away from each other, thereby completing the adjustment of the distance between the electric heating module 24 and the battery separator.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art in the technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A battery diaphragm extraction device, comprising an extraction device body (1), an extraction mechanism and a heating mechanism, characterized in that: The extraction device body (1) is provided with a placement groove (2), the extraction mechanism is fixedly arranged in the placement groove (2), the heating mechanism is arranged on one side of the extraction mechanism, and the input ends of the extraction mechanism and the heating mechanism are both provided with a roller (3) for supporting the battery diaphragm. The extraction mechanism comprises an extraction groove (4) fixedly arranged inside the placement groove (2), a transfer groove (5) and a cleaning groove (6), the extraction groove (4) and the transfer groove (5) are both provided with a plurality of transfer grooves (5) and the transfer groove (5) is provided between two extraction grooves (4), the cleaning groove (6) is provided on one side of the last extraction groove (4), and the extraction groove (4), the transfer groove (5) and the cleaning groove (6) are provided with a plurality of conveying rollers (7) for conveying.

2. A battery diaphragm extraction device according to claim 1, characterized in that: The extraction mechanism comprises a scraping cleaning component, and the scraping cleaning component comprises a scraping knife (8) arranged on the output side of the extraction tank (4), the transfer tank (5) and the cleaning tank (6). The scraping knife (8) is provided with a plurality of scraping knives and is movably arranged on both sides of the battery diaphragm. The two sides of the scraping knife (8) are fixedly connected with a moving block (9), and the upper and lower ends of the moving block (9) are rotatably connected with a plurality of balls (10). The extraction equipment body (1), the extraction tank (4), the transfer tank (5) and the cleaning tank (6) are provided with a mounting groove (11) matching the moving block (9) and the balls (10), wherein a threaded rod (12) is threadedly connected to the middle part of one side of the moving block (9), and the two ends of the threaded rod (12) are rotatably connected to the inner wall of the mounting groove (11).

3. A battery diaphragm extraction device according to claim 2, characterized in that: A transmission shaft (13) is provided on one side of the threaded rod (12), and both ends of the transmission shaft (13) are rotatably connected to the inner wall of the mounting groove (11). A plurality of threaded rods (12) are fixedly connected to one side with a driven pulley (14), and a driving pulley (15) matched with the driven pulley (14) is fixedly connected to the transmission shaft (13). A synchronous belt (16) for transmission is sleeved on the driven pulley (14) and the driving pulley (15). A driven bevel gear (17) is fixedly connected to one side of the transmission shaft (13), and a driving bevel gear (18) is meshed on the driven bevel gear (17). A driving motor (19) is provided on one side of the driving bevel gear (18). A mounting plate (20) is provided on the extraction device body (1) for facilitating the mounting of the driving motor (19), and an output end of the driving motor (19) passes through the mounting plate (20) and is fixedly connected to the driving bevel gear (18).

4. A battery diaphragm extraction device according to claim 1, characterized in that: The plurality of conveying rollers (7) located on the extraction tank (4), transfer tank (5) and cleaning tank (6) near the scraping cleaning component correspond to each other in pairs, and the distance between each two conveying rollers (7) is slightly greater than the thickness of the largest specification battery separator.

5. The battery diaphragm extraction device according to claim 1, characterized in that: The heating mechanism comprises a heating chamber (21) fixedly arranged on one side of the roller one (3), openings (22) are provided on both sides of the heating chamber (21) for facilitating the entry and exit of the battery diaphragm, and a plurality of the openings (22) are rotatably connected to rollers two (23) for supporting the battery diaphragm, and the interior of the heating chamber (21) is movably connected to two groups of upper and lower symmetrical electric heating modules (24), and a plurality of movable blocks two (25) are fixedly arranged on both sides of the electric heating module (24), and the heating chamber (21) is provided with a guide groove (26) matching the movable block two (25), and the middle part of the movable block two (25) is threadedly connected to a threaded rod two (27).

6. A battery diaphragm extraction device according to claim 5, characterized in that: One end of the plurality of threaded rods (27) is rotatably connected to the bottom wall of the guide slot (26), and the other end of the threaded rod (27) passes through the guide slot (26) and extends to the outside of the heating chamber (21). A section of the threaded rod (27) located outside the heating chamber (21) is fixedly connected to a synchronous pulley (28), and a synchronous belt (29) for transmission is sleeved on the synchronous pulley (28). An L-shaped mounting plate (30) is provided on one side of one of the threaded rods (27), and the L-shaped mounting plate (30) is fixedly arranged at the top end of the heating chamber (21). A driving motor (31) is fixedly arranged at the top end of the L-shaped mounting plate (30), and an output end of the driving motor (31) passes through the L-shaped mounting plate (30) and is fixedly connected to the threaded rod (27).

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