Diaphragm attaching equipment for lithium battery diaphragm piece

Abstract

The invention relates to the technical field of lithium battery diaphragm attaching, in particular to diaphragm attaching equipment for a lithium battery diaphragm piece. Comprising an operation platform, a mounting plate mounted on the operation platform, a diaphragm feeding mechanism mounted on the mounting plate, a plurality of pole piece adsorption mechanical arms mounted on the mounting plate, a lamination table mounted on the operation platform, a positive pole piece table and a negative pole piece table, wherein the positive pole piece table and the negative pole piece table are respectively arranged on two sides of the lamination table and are mounted on the operation platform; the device comprises an operation platform, a positive plate feeding pit opening and a negative plate feeding pit opening, limiting assemblies are arranged in the positive plate feeding pit opening and the negative plate feeding pit opening, a moving channel penetrating into the positive plate feeding pit opening and the negative plate feeding pit opening is formed in the front face of the operation platform, and a moving track is arranged at the bottom end of the moving channel; a material supplementing mechanism is connected to the moving track in a sliding mode, the moving track is provided with a driving mechanism used for driving the material supplementing mechanism to move into the positive pole piece feeding pit opening and the negative pole piece feeding pit opening, and the purpose of improving the machining efficiency is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery diaphragm attachment, and in particular to a lithium battery diaphragm sheet diaphragm attachment device. Background Art

[0002] The lithium battery diaphragm sheet diaphragm attaching equipment, namely the lithium battery stacking machine, has a specific structure including an operating platform, a mounting plate installed on the operating platform, a diaphragm feeding mechanism installed on the mounting plate, a plurality of electrode sheet adsorption mechanical arms installed on the mounting plate, a stacking table installed on the operating platform, a positive electrode sheet table and a negative electrode sheet table respectively arranged on both sides of the stacking table, a positive electrode sheet feeding pit opening opened on one side of the positive electrode sheet table, and a negative electrode sheet feeding pit opening opened on one side of the negative electrode sheet table.

[0003] Start the diaphragm feeding mechanism and the electrode sheet adsorption robot arm. One electrode sheet adsorption robot arm adsorbs a positive electrode sheet from the positive electrode sheet feeding pit to the positive electrode sheet table for positioning. Then the other electrode sheet adsorption robot arm adsorbs a negative electrode sheet from the negative electrode sheet feeding pit to the negative electrode sheet table for positioning. While the negative electrode sheet moves, the positive electrode sheet positioned on the positive electrode sheet table will be adsorbed by the electrode sheet adsorption robot arm and moved to the stacking table. Then the negative electrode sheet on the negative electrode sheet table will be adsorbed by the electrode sheet adsorption robot arm and moved to the stacking table. While the negative electrode sheet moves, the diaphragm feeding mechanism covers the positive electrode sheet on the stacking table. A layer of diaphragm, the negative electrode sheet is located on the diaphragm, and the positive electrode sheet in the positive electrode sheet feeding pit will be again sucked by the electrode sheet mechanical arm to repeat the work, thereby completing the lithium battery diaphragm stacking, but the positive electrode sheets and negative electrode sheets in the positive electrode sheet feeding pit and the negative electrode sheet feeding pit are limited, resulting in the need to add positive electrode sheets and negative electrode sheets to the positive electrode sheet feeding pit and the negative electrode sheet feeding pit after the lithium battery stacking machine has been running for a period of time. The lithium battery stacking machine needs to be shut down while adding, which affects the processing efficiency to a certain extent. For this reason, a lithium battery diaphragm sheet diaphragm attachment device that can improve the processing efficiency is needed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a lithium battery diaphragm sheet diaphragm attachment device to solve the technical problem in the prior art that the machine needs to be shut down when adding positive and negative electrode sheets, which affects the processing efficiency.

[0005] The above-mentioned purpose of the present application is achieved through the following technical solutions: a lithium battery diaphragm sheet diaphragm attachment device, including an operating platform, a mounting plate installed on the operating platform, a diaphragm feeding mechanism installed on the mounting plate, a plurality of electrode sheet adsorption mechanical arms installed on the mounting plate, a stacking table installed on the operating platform, a positive electrode sheet table and a negative electrode sheet table respectively arranged on both sides of the stacking table, a positive electrode sheet feeding pit opening opened on one side of the positive electrode sheet table and a negative electrode sheet feeding pit opening opened on one side of the negative electrode sheet table, and a limiting component is provided in the positive electrode sheet feeding pit opening and the negative electrode sheet feeding pit opening, and two moving channels are provided on the front side of the operating platform, which respectively penetrate into the positive electrode sheet feeding pit opening and the negative electrode sheet feeding pit opening, and a moving track extending out of the operating platform is provided at the bottom end of the moving channel, and a feeding mechanism is slidably connected to the moving track, and a driving mechanism for driving the feeding mechanism to move into the positive electrode sheet feeding pit opening and the negative electrode sheet feeding pit opening is provided at the end of the moving track away from the operating platform.

[0006] Furthermore, the limiting assembly in the positive electrode sheet feeding pit includes two support plates respectively located on both sides of the positive electrode sheet feeding pit and rotatably connected to the operating platform, and two limit plates respectively located on the bottom surfaces of the limit plates and fixedly connected to the operating platform, the upper surfaces of the support plates are provided with pressure sensors for sending weight signals on the support plates to the driving mechanism, and the structural position of the limiting assembly in the negative electrode sheet feeding pit is the same as that of the limiting assembly in the positive electrode sheet feeding pit.

[0007] Furthermore, the feeding mechanism includes a feeding electric cylinder slidably connected to a moving track and a placing platform fixedly connected to the output end of the feeding electric cylinder. The lower end of the inner part of the positive electrode sheet feeding pit and the lower end of the inner part of the negative electrode sheet feeding pit are both provided with a starting switch for starting the rising of the feeding electric cylinder. The width of the placing platform is smaller than the width between the two support plates in the limit assembly, and the output end of the feeding electric cylinder faces upward.

[0008] Furthermore, the driving structure includes a driving electric cylinder fixedly connected to the moving track, the output end of the driving electric cylinder is fixedly connected to the feeding electric cylinder, the driving electric cylinder signal is connected to the pressure sensor, and the output end of the driving electric cylinder is facing the direction inside the operating platform.

[0009] By adopting the above technical scheme, the positive electrode sheet and the negative electrode sheet are respectively placed on the support plate inside the positive electrode sheet feeding pit and the support plate inside the negative electrode sheet feeding pit, and the positive electrode sheet is placed on the placing platform of the feeding mechanism at the lower end of the positive electrode sheet feeding pit, and the negative electrode sheet is placed on the placing platform of the feeding mechanism at the lower end of the negative electrode sheet feeding pit, and the diaphragm feeding mechanism and the electrode sheet adsorption robot arm are started to stack the positive electrode sheet, the negative electrode sheet and the diaphragm. When the positive electrode sheet in the positive electrode sheet feeding pit and the negative electrode sheet in the negative electrode sheet feeding pit are almost used up, the pressure sensors of the two pits respectively send weight signals to the two driving electric cylinders, which are started after receiving the signals, one of which pushes the feeding electric cylinder to slide into the positive electrode sheet feeding pit, and the other A feeding electric cylinder is pushed to slide into the feeding pit of the negative electrode sheet. When the feeding electric cylinder slides into the pit, it contacts the starting switch in the pit, causing the feeding electric cylinder to drive the placement platform to move upward, so that the electrode sheet placed on the placement platform moves upward against the support plate. When the placement platform passes the support plate, the output end of the feeding electric cylinder will retract, so that the bottom surface of the electrode sheet placed on the placement platform contacts the support plate, and the placement platform continues to descend. Due to the setting of the limit plate, the support plate cannot rotate downward, so that the electrode sheet remains on the support plate, completing the feeding. When the staff feeds the positive and negative electrode sheets, there is no need to shut down the entire machine, but only need to place the electrode sheet on the placement platform in advance, which improves the processing efficiency and makes feeding more convenient.

[0010] Furthermore, two inclined plates are respectively provided on both sides of the moving channel, and the two inclined plates form an eight-shaped shape and are arranged from small to large toward the driving mechanism.

[0011] By adopting the above technical solution, although the setting of the feeding mechanism makes the feeding of the electrode more convenient, after the staff places the electrode on the placement platform, it cannot be guaranteed that the electrode placed by the staff will be aligned with the moving channel every time. This results in the driving mechanism pushing the feeding mechanism to move to the pit mouth, and the side of the electrode placed on the placement platform will hit the operating platform, causing the electrode on the placement platform to fall off. The staff needs to re-place it, which affects the processing efficiency. The setting of the inclined plate solves this technical problem. When the electrode placed by the staff is not aligned with the moving channel, the two sides of the electrode will contact the inclined surface of the inclined plate during the process of being pushed by the driving mechanism. There are two inclined plates in an eight-shaped shape, which are arranged from small to large towards the driving mechanism. During the movement of the placement platform, the electrode will be gradually squeezed by the inclined plate, so that the electrode is aligned with the moving channel. In this way, the electrode will not hit the operating platform during the movement, making the electrode more stable during the transportation process.

[0012] Furthermore, a return spring is provided on the upper surface of the support plate in the positive electrode sheet feeding pit for keeping the support plate in a horizontal state, one end of the return spring is fixedly connected to the support plate, and the other end is fixedly connected to the side wall of the positive electrode sheet feeding pit. A return spring is also provided in the negative electrode sheet feeding pit, and the position, shape and structure of the return spring are the same as those in the positive electrode sheet feeding pit.

[0013] By adopting the above technical solution, although the setting of the limit assembly makes it more convenient to replenish the electrode, after the electrode on the placing platform moves upward against the support plate, the support plate may stick to the side wall of the pit and will not naturally rotate downward due to gravity. This results in the electrode not being stranded on the support plate when the placing platform descends, and as the placing platform descends, the replenishment cannot be completed. The setting of the reset spring solves this technical problem. When the electrode on the placing platform moves upward against the support plate and the electrode is separated from the support plate, the reset spring pushes the support plate to rotate downward. When the support plate rotates to a horizontal state, the limit plate presses against the bottom surface of the support plate to prevent the support plate from continuing to rotate downward, thereby resetting the support plate and preventing the support plate from being unable to provide support for the electrode.

[0014] Furthermore, protective plates fixedly connected to the upper surface of the operating platform are provided around the pit openings of the positive electrode sheet and the pit openings of the negative electrode sheet.

[0015] By adopting the above technical solution, the protective plate is used to prevent the pole piece placed on the support plate and extending out of the pit from deviating from the position of the pit due to the vibration generated by processing.

[0016] Furthermore, protective baffles are fixedly provided on the front and rear sides of the placement platform.

[0017] By adopting the above technical solution, the protective baffle can limit the front and rear sides of the electrode placed on the placement platform, so that the staff can place the electrode on the placement platform more accurately, making it more convenient to position the electrode later.

[0018] Furthermore, the inclined plate is rotatably connected to the operating platform, and the opposite sides of the two inclined plates on both sides of the moving channel are provided with a fixing structure for fixing the inclined plates.

[0019] Furthermore, the fixing structure includes a limit rod rotatably connected to the operating platform and an insertion port provided on the inclined plate, and one end of the limit rod away from the operating platform extends into the insertion port to abut against the inclined plate.

[0020] By adopting the above technical solution, when the attachment equipment is not used, small animals such as snakes, insects, rats, ants, etc. may enter the pit mouth through the moving channel, causing the feeding mechanism to be affected during subsequent processing. The rotating inclined plate and the fixed structure solve this technical problem. When the attachment equipment is not needed, the inclined plate and the limit rod are rotated to make the limit rod detach from the inclined plate, and then the two inclined plates are rotated to block the moving channel, thereby preventing small animals such as snakes, insects, rats, ants, etc. from entering the pit mouth through the moving channel.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. Through the setting of the limit assembly, the feeding mechanism and the driving mechanism, the positive electrode sheet and the negative electrode sheet are placed on the support plate inside the positive electrode sheet feeding pit and the support plate inside the negative electrode sheet feeding pit respectively, and the positive electrode sheet is placed on the placing platform of the feeding mechanism at the lower end of the positive electrode sheet feeding pit, and the negative electrode sheet is placed on the placing platform of the feeding mechanism at the lower end of the negative electrode sheet feeding pit, and the diaphragm feeding mechanism and the electrode sheet adsorption mechanical arm are started to stack the positive electrode sheet, the negative electrode sheet and the diaphragm. When the positive electrode sheet in the positive electrode sheet feeding pit and the negative electrode sheet in the negative electrode sheet feeding pit are almost used up, the pressure sensors of the two pits respectively send weight signals to the two driving electric cylinders, which are started after receiving the signals, and one pushes the feeding electric cylinder to slide into the positive electrode sheet feeding pit. When the loading platform is moved upwards, the electrode piece placed on the loading platform moves upwards against the support plate. When the loading platform passes the support plate, the output end of the loading cylinder will retract, so that the bottom surface of the electrode piece placed on the loading platform will contact the support plate, and the loading platform will continue to descend. Due to the setting of the limit plate, the support plate cannot rotate downward, so that the electrode piece remains on the support plate, completing the material feeding. When the staff feeds the positive and negative electrode pieces, there is no need to shut down the entire machine. They only need to place the electrode piece on the loading platform in advance, which improves the processing efficiency and makes material feeding more convenient.

[0023] 2. Through the setting of the inclined plate, when the pole piece placed by the staff is not aligned with the moving channel, the two sides of the pole piece will contact the inclined surface of the inclined plate during the pushing process of the driving mechanism. There are two inclined plates in an eight-shaped shape, which are arranged from small to large toward the driving mechanism. During the movement of the placement platform, the pole piece will be gradually squeezed by the inclined plate so that the pole piece is aligned with the moving channel. In this way, the pole piece will not hit the operating platform during the movement, making the pole piece more stable during the transportation process.

[0024] 3. Through the setting of the reset spring, when the pole piece on the placement platform moves upward against the support plate and then detaches from the support plate, the reset spring pushes the support plate to rotate downward. When the support plate rotates to a horizontal state, the limit plate presses against the bottom surface of the support plate to prevent the support plate from continuing to rotate downward, thereby resetting the support plate and preventing the support plate from being unable to provide support for the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0026] Figure 2 is along Figure 1 Sectional view along line AA;

[0027] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0028] Figure 4 yes Figure 1 Enlarged view of part B in the middle.

[0029] Figure numerals: 1. operating platform; 10. diaphragm feeding mechanism; 11. electrode adsorption mechanical arm; 12. stacking table; 13. positive electrode table; 14. negative electrode table; 15. positive electrode feeding pit; 16. negative electrode feeding pit; 17. moving channel; 18. moving track; 19. protective plate; 2. limit assembly; 20. support plate; 21. limit plate; 22. pressure sensor; 23. reset spring; 3. feeding mechanism; 30. feeding electric cylinder; 31. placing platform; 32. starting switch; 33. protective baffle; 4. driving electric cylinder; 5. inclined plate; 6. fixed structure; 60. limit rod; 61. plug interface. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with the accompanying drawings.

[0031] Example, see Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , a lithium battery diaphragm film diaphragm attachment device, including an operating platform 1, as the cornerstone of the entire system, on which various components are installed to achieve efficient operation. The operating platform 1 is fixedly installed with a mounting plate to carry the key diaphragm feeding mechanism 10, which is responsible for providing continuous diaphragm materials. In addition, multiple electrode sheet adsorption mechanical arms 11 are also installed on the mounting plate, which are responsible for accurately grasping and carrying positive and negative electrode sheets.

[0032] The operating platform 1 is provided with a stacking table 12 as the core area of ​​the stacking work to ensure the stability and accuracy of the stacking process. In order to cooperate with the stacking work, a positive electrode table 13 and a negative electrode table 14 are respectively provided on both sides of the stacking table 12, each of which is equipped with a positive electrode feeding pit 15 and a negative electrode feeding pit 16 to facilitate the storage and supply of the electrode. The two feeding pits are both provided with a limit assembly 2 to ensure the stability and orderliness of the electrode during the supply process.

[0033] Two moving passages 17 are provided on the front of the operating platform 1, which lead to the positive electrode sheet feeding pit 15 and the negative electrode sheet feeding pit 16 respectively, providing a convenient passage for the feeding operation. The bottom end of the moving passage 17 extends out of the operating platform 1 to form a moving track 18, and the feeding mechanism 3 is slidably connected to the moving track 18, so that the feeding operation can be carried out flexibly and efficiently.

[0034] The feeding mechanism 3 is composed of a feeding electric cylinder 30 slidably connected to the moving track 18 and a placement platform 31 fixed on the output end of the feeding electric cylinder 30. This design makes the feeding process stable and fast. In order to trigger the feeding operation, a start switch 32 is installed at the lower end of the positive electrode sheet feeding pit 15 and the negative electrode sheet feeding pit 16. When the feeding electric cylinder 30 slides into the pit and contacts the start switch 32, the feeding electric cylinder 30 will start and drive the placement platform 31 to rise, lift the electrode sheet placed on the platform in advance and place it on the support plate 20.

[0035] The limit assembly 2 includes two support plates 20 rotatably connected to the operating platform 1 and two limit plates 21 fixedly connected to the operating platform 1. A pressure sensor 22 is installed on the upper surface of the support plate 20, which can monitor the weight of the electrode on it in real time. When the weight drops to a certain level, the sensor will send a signal to the drive mechanism. The limit assembly 2 in the negative electrode feeding pit 16 has the same structure as the limit assembly 2 in the positive electrode feeding pit 15, which ensures the consistency and stability of the equipment during the feeding process.

[0036] The driving mechanism is composed of a driving electric cylinder 4 fixedly connected to the moving track, which receives the signal from the pressure sensor 22 and drives the feeding electric cylinder 30 to slide and lift. This design enables the feeding process to be carried out automatically without manual intervention, greatly improving production efficiency.

[0037] In actual operation, the staff only needs to pre-place enough electrodes on the placement platform 31 of the feeding mechanism 3. When the electrode pieces in the feeding pit are almost used up, the pressure sensor 22 sends weight signals to the two driving electric cylinders 4 respectively. The two driving electric cylinders 4 start after receiving the signals, one pushes the feeding electric cylinder 30 to slide into the positive electrode feeding pit 15, and the other pushes the feeding electric cylinder 30 to slide into the negative electrode feeding pit 16. When the feeding electric cylinder 30 slides into the pit, it contacts the starting switch 32 in the pit, so that the feeding electric cylinder 30 drives the placement platform 31 to move upward, so that the electrode pieces placed on the placement platform 31 move upward against the support plate 20. When the placement platform 31 passes the support plate 20, the output end of the feeding electric cylinder 30 will retract, so that the bottom surface of the electrode pieces placed on the placement platform 31 contacts the support plate 20, and the placement platform 31 continues to descend. Because of the setting of the limit plate 21, the support plate 20 cannot rotate downward, so that the electrode pieces remain on the support plate 20, and the feeding is completed. This process does not require shutting down the entire machine, ensuring the continuity and stability of production. At the same time, the setting of the limit plate 21 ensures the stability of the support plate 20 during the feeding process, prevents the pole piece from slipping or misaligning, and further improves the reliability and production efficiency of the equipment.

[0038] Although the setting of the feeding mechanism 3 makes it more convenient to feed the electrode, after the staff places the electrode on the placement platform 31, it cannot be guaranteed that the electrode placed by the staff will be aligned with the moving channel 17 every time. This causes the side of the electrode placed on the placement platform 31 to hit the operating platform 1 when the driving mechanism pushes the feeding mechanism 3 to move into the pit, causing the electrode on the placement platform 31 to fall off, and the staff needs to re-place it, which affects the processing efficiency. In order to solve this technical problem, in this embodiment, two inclined plates 5 are respectively provided on both sides of the moving channel 17 , the two inclined plates 5 form an eight-shaped shape, which is gradually larger than the driving mechanism. When the pole piece placed by the staff is not aligned with the moving channel 17, the two sides of the pole piece will contact the inclined surface of the inclined plate 5 during the pushing process of the driving mechanism. There are two inclined plates 5 in an eight-shaped shape, which is gradually larger than the driving mechanism. During the movement of the placement platform 31, the pole piece will be gradually squeezed by the inclined plate 5, so that the pole piece is aligned with the moving channel 17, so that the pole piece will not collide with the operating platform 1 during the movement, making the pole piece more stable during the transportation process.

[0039] In this embodiment, a protective plate 19 fixedly connected to the upper surface of the operating platform 1 is provided around the pit opening of the positive electrode sheet and the pit opening of the negative electrode sheet. The protective plate 19 is used to prevent the electrode sheet placed on the support plate 20 and extending out of the pit opening from deviating from the position of the pit opening due to vibration generated by processing.

[0040] In this embodiment, protective baffles 33 are fixedly provided on the front and rear sides of the placement platform 31. The protective baffles 33 can limit the front and rear sides of the electrode placed on the placement platform 31, so that the staff can place the electrode on the placement platform 31 more accurately, making it more convenient to position the electrode later.

[0041] Although the setting of the limit assembly 2 makes it more convenient to replenish the electrode, after the electrode on the placement platform 31 moves upward against the support plate 20, the support plate 20 may stick to the side wall of the pit and will not naturally rotate downward due to gravity. This results in that when the placement platform 31 descends, the electrode will not be retained on the support plate 20, and as the placement platform 31 descends, the replenishment cannot be completed. In order to solve this technical problem, in this embodiment, a return spring 23 for keeping the support plate 20 in a horizontal state is provided on the upper surface of the support plate 20 in the positive electrode feeding pit 15, and one end of the return spring 23 is fixedly connected to the support plate 20, and the other end is fixedly connected to the side wall of the positive electrode feeding pit 15. A reset spring 23 is also provided in the negative electrode feeding pit 16, and the position, shape and structure are the same as those in the positive electrode feeding pit 15. When the electrode on the placement platform 31 moves upward against the support plate 20, when the electrode is separated from the support plate 20, the reset spring 23 pushes the support plate 20 to rotate downward. When the support plate 20 is rotated to a horizontal state, the limit plate 21 presses against the bottom surface of the support plate 20 to prevent the support plate 20 from continuing to rotate downward, thereby resetting the support plate 20 to prevent the support plate 20 from being unable to provide support for the electrode.

[0042] In this embodiment, the inclined plate 5 is rotatably connected to the operating platform 1, and the two inclined plates 5 on both sides of the moving channel 17 are provided with a fixing structure 6 for fixing the inclined plate 5 on their opposite sides. The fixing structure 6 includes a limit rod 60 rotatably connected to the operating platform 1 and an insertion port 61 opened on the inclined plate 5. The end of the limit rod 60 away from the operating platform 1 extends into the insertion port 61 to abut the inclined plate 5. When the attachment device is not used, small animals such as snakes, insects, rats, ants, etc. may enter the pit mouth through the moving channel 17, causing the feeding mechanism 3 to be affected during subsequent processing. The rotatable inclined plate 5 and the fixing structure 6 solve this technical problem. When the attachment device is not needed, the inclined plate 5 and the limit rod 60 are rotated to make the limit rod 60 detach from the inclined plate 5, and then the two inclined plates 5 are rotated to block the moving channel 17, thereby preventing small animals such as snakes, insects, rats, ants, etc. from entering the pit mouth through the moving channel 17.

[0043] Specific implementation process: the positive electrode sheet and the negative electrode sheet are placed on the support plate 20 inside the positive electrode sheet feeding pit 15 and the support plate 20 inside the negative electrode sheet feeding pit 16 respectively, and the positive electrode sheet is placed on the placement platform 31 of the feeding mechanism 3 at the lower end of the positive electrode sheet feeding pit 15, and the negative electrode sheet is placed on the placement platform 31 of the feeding mechanism 3 at the lower end of the negative electrode sheet feeding pit 16, and the diaphragm feeding mechanism 10 and the electrode sheet adsorption mechanical arm 11 are started to stack the positive electrode sheet, the negative electrode sheet and the diaphragm. When the positive electrode sheet in the positive electrode sheet feeding pit 15 and the negative electrode sheet in the negative electrode sheet feeding pit 16 are almost used up, the pressure sensors 22 of the two pits respectively send weight signals to the two driving electric cylinders 4, and the two driving electric cylinders 4 are started after receiving the signals, and one pushes the feeding electric cylinder 30 to slide into the positive electrode sheet feeding pit. In the pit mouth 15, another one pushes the feeding electric cylinder 30 to slide into the negative electrode sheet feeding pit mouth 16, so that the two sides of the electrode sheet on the placement platform 31 contact the inclined surface of the inclined plate 5 for correction. When the feeding electric cylinder 30 slides into the pit mouth, it contacts the starting switch 32 in the pit mouth, so that the feeding electric cylinder 30 drives the placement platform 31 to move upward, so that the electrode sheet placed on the placement platform 31 moves upward against the support plate 20. When the placement platform 31 passes the support plate 20, the output end of the feeding electric cylinder 30 will retract, and at the same time, the reset spring 23 will reset against the support plate 20, so that the bottom surface of the electrode sheet placed on the placement platform 31 contacts the support plate 20, and the placement platform 31 continues to descend. Because of the setting of the limit plate 21, the support plate 20 cannot rotate downward, so that the electrode sheet remains on the support plate 20, and the feeding is completed.

[0044] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lithium battery diaphragm film attaching device, comprising an operating platform (1), a mounting plate mounted on the operating platform (1), a diaphragm feeding mechanism (10) mounted on the mounting plate, a plurality of electrode sheet adsorption mechanical arms (11) mounted on the mounting plate, a stacking table (12) mounted on the operating platform (1), a positive electrode sheet table (13) and a negative electrode sheet table (14) respectively arranged on both sides of the stacking table (12) and mounted on the operating platform (1), a positive electrode sheet feeding pit (15) opened on one side of the positive electrode sheet table (13) and a negative electrode sheet feeding pit (16) opened on one side of the negative electrode sheet table (14), characterized in that: A limit assembly (2) is provided in the positive electrode sheet feeding pit opening (15) and the negative electrode sheet feeding pit opening (16); two moving channels (17) are provided on the front of the operating platform (1) and respectively penetrate into the positive electrode sheet feeding pit opening (15) and the negative electrode sheet feeding pit opening (16); a moving track (18) extending out of the operating platform (1) is provided at the bottom end of the moving channel (17); a feeding mechanism (3) is slidably connected to the moving track (18); and a driving mechanism for driving the feeding mechanism (3) to move into the positive electrode sheet feeding pit opening (15) and the negative electrode sheet feeding pit opening (16) is provided at one end of the moving track (18) away from the operating platform (1).

2. A lithium battery diaphragm sheet diaphragm attaching device according to claim 1, characterized in that: The limiting assembly (2) in the positive electrode sheet feeding pit (15) comprises two support plates (20) respectively located at two sides of the positive electrode sheet feeding pit (15) and rotatably connected to the operating platform (1), and two limit plates (21) respectively located at the bottom surface of the limit plates (21) and fixedly connected to the operating platform (1). The upper surface of the support plate (20) is provided with a pressure sensor (22) for sending a weight signal on the support plate (20) to a driving mechanism. The structural position of the limiting assembly (2) in the negative electrode sheet feeding pit (16) is the same as that of the limiting assembly (2) in the positive electrode sheet feeding pit (15).

3. A lithium battery diaphragm sheet diaphragm attaching device according to claim 2, characterized in that: The feeding mechanism (3) comprises a feeding electric cylinder (30) slidably connected to a movable track (18) and a placement platform (31) fixedly connected to an output end of the feeding electric cylinder (30); a start switch (32) for starting the feeding electric cylinder (30) to rise is provided at the lower end of the inner part of the positive electrode sheet feeding pit opening (15) and the lower end of the inner part of the negative electrode sheet feeding pit opening (16); the width of the placement platform (31) is smaller than the width between two support plates (20) in the limit assembly (2); and the output end of the feeding electric cylinder (30) faces upward.

4. A lithium battery diaphragm sheet diaphragm attaching device according to claim 3, characterized in that: The driving structure comprises a driving electric cylinder (4) fixedly connected to a moving track (18), an output end of the driving electric cylinder (4) fixedly connected to a feeding electric cylinder (30), a signal of the driving electric cylinder (4) connected to a pressure sensor (22), and an output end of the driving electric cylinder (4) facing a direction inside the operating platform (1).

5. A lithium battery diaphragm sheet diaphragm attaching device according to claim 1, characterized in that: Two inclined plates (5) are respectively arranged on both sides of the moving channel (17), and the two inclined plates (5) form an eight-shaped shape and are arranged from small to large toward the driving mechanism.

6. A lithium battery diaphragm sheet diaphragm attaching device according to claim 2, characterized in that: A return spring (23) for keeping the support plate (20) in a horizontal state is provided on the upper surface of the support plate (20) in the positive electrode sheet feeding pit (15); one end of the return spring (23) is fixedly connected to the support plate (20), and the other end is fixedly connected to the side wall of the positive electrode sheet feeding pit (15); and a return spring (23) is also provided in the negative electrode sheet feeding pit (16), and the position, shape and structure of the return spring (23) are the same as those in the positive electrode sheet feeding pit (15).

7. A lithium battery diaphragm sheet diaphragm attaching device according to claim 1, characterized in that: A protective plate (19) fixedly connected to the upper surface of the operating platform (1) is provided around the positive electrode plate pit opening and the negative electrode plate pit opening.

8. A lithium battery diaphragm sheet diaphragm attaching device according to claim 3, characterized in that: Protective baffles (33) are fixedly provided on the front and rear sides of the placement platform (31).

9. A lithium battery diaphragm sheet diaphragm attaching device according to claim 5, characterized in that: The inclined plate (5) is rotatably connected to the operating platform (1), and the two inclined plates (5) on both sides of the moving channel (17) are provided with a fixing structure (6) for fixing the inclined plates (5) on their opposite sides.

10. A lithium battery diaphragm sheet diaphragm attaching device according to claim 9, characterized in that: The fixed structure (6) comprises a limit rod (60) rotatably connected to the operating platform (1) and an insertion port (61) provided on the inclined plate (5); one end of the limit rod (60) away from the operating platform (1) extends into the insertion port (61) to abut against the inclined plate (5).

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