Shearing device for lithium battery diaphragm production

Abstract

The utility model belongs to the technical field of lithium battery diaphragm production, and discloses a shearing device for lithium battery diaphragm production. Comprising a machining table, fixing plates are symmetrically installed at one end of the machining table, a first motor is installed on the outer side of the fixing plate on one side, a winding roller is installed at the output end of the first motor, a fixing mechanism is arranged at the other end of the machining table, a fixing frame is installed at the middle end of the top of the machining table, and a second motor is installed on the outer side of the fixing frame. Diaphragms are guided and conveyed through the guide rollers, the springs and the side plates are additionally arranged, the device can be suitable for the diaphragms with different thicknesses, the pressing plate can be adjusted to press the diaphragms through the vertical rods, the guide blocks and the pressing plate, the limiting assemblies are additionally arranged, the diaphragms are centered and positioned, deflection of the diaphragms is avoided, follow-up diaphragm cutting is facilitated, and the working efficiency is improved. And the fixing rods and the rollers are additionally arranged at the two ends of the cutter, the two ends of the diaphragm are extruded through the rollers during cutting, the condition of edge warping of the diaphragm can be avoided, and the cutting quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery diaphragm production, and more specifically, to a shearing device for lithium battery diaphragm production. Background Art

[0002] The diaphragm is located between the positive electrode and the negative electrode. Its main function is to separate the positive and negative active materials to prevent the two electrodes from short-circuiting due to contact. During the electrochemical reaction, it can maintain the necessary electrolyte and form a channel for ion movement. The diaphragm material is non-conductive. Different types of batteries use different diaphragms. During the production process, a cutting device is required to cut the diaphragm into the required size.

[0003] The existing cutting device needs to pull the diaphragm to the required size during cutting, which may easily cause the diaphragm to deflect. In addition, the diaphragm is pushed by the cutter during cutting, which may easily cause the diaphragm to warp, thereby reducing the cutting quality. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model proposes a shearing device for producing lithium battery diaphragms.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shearing device for lithium battery diaphragm production, comprising a processing table, a fixing plate is symmetrically installed at one end of the processing table, a motor 1 is installed on the outer side of the fixing plate on one side, a winding roller is installed at the output end of the motor 1, and a fixing mechanism is provided at the other end of the processing table;

[0006] A fixing frame is installed at the middle end of the top of the processing table, a second motor is installed on the outside of the fixing frame, a rotating rod is installed on the output end of the second motor, a slider is installed on the outer thread of the rotating rod, a cylinder is installed at the bottom of the slider, a bottom plate is installed at the output end of the cylinder, a cutting knife is installed at the bottom of the bottom plate, a fixing rod is symmetrically installed at the bottom of the bottom plate, a roller is rotatably installed on the inner side of the fixing rod, and a limiting component is provided on the inner side of the fixing frame;

[0007] The limiting assembly comprises a limiting plate, a cross bar is rotatably mounted on the middle end of one side of the limiting plate, a guide rod is mounted on one end of one side of the limiting plate, and a collar is mounted on the other end of one side of the limiting plate.

[0008] Furthermore, the fixing mechanism includes a fixing box, which is symmetrically installed at the other end of the processing table, and a vertical rod is rotatably installed inside the fixing box. Guide blocks are reversely threadedly installed on the upper and lower ends of the vertical rod, and a pressure plate is installed between the guide blocks. The inside of the pressure plate is elastically connected to a side plate through a spring, and a guide roller is rotatably installed on the inner side of the side plate.

[0009] Furthermore, a through hole rotatably connected to the vertical rod is provided on the top of the fixed box, a guide hole slidably connected to the guide block is provided on the inner side of the fixed box, the side plate is slidably installed on the inner side of the pressure plate, and an opening adapted to the size of the guide roller is provided on the side of the pressure plate close to each other.

[0010] Furthermore, a rotating hole threadedly connected to the cross bar is opened at the lower end of the outer side of the fixing frame, a connecting plate is installed at one end of the fixing box, a socket slidingly connected to the guide rod is opened on one side of the connecting plate, and the ring is rotatably sleeved on the outer side of the winding roller.

[0011] Furthermore, the rotating rod is rotatably mounted on the inner side of the fixing frame, the top of the sliding block is slidably connected to the top of the inner side of the fixing frame, and the roller is flush with the bottom of the cutting knife.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the diaphragm is guided and transported by guide rollers, springs and side plates are added, and it can be suitable for diaphragms of different thicknesses; the pressure plate can be adjusted to press the diaphragm through the vertical rod, guide block and pressure plate; a limit assembly is added to center the diaphragm to avoid diaphragm deviation and facilitate subsequent cutting of the diaphragm; fixed rods and rollers are added at both ends of the cutter, and the two ends of the diaphragm are squeezed by the rollers during cutting, which can avoid the diaphragm from warping and improve the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure on the bottom plate of the utility model;

[0015] Figure 3 It is a side view of the fixing mechanism of the utility model;

[0016] Figure 4 It is a schematic diagram of the limit assembly of the utility model;

[0017] Figure 5 For the utility model Figure 1 A magnified view of the structure in the middle.

[0018] In the figure:

[0019] 1. Processing table; 101. Fixed plate; 2. Fixed box; 3. Motor 1; 4. Winding roller; 5. Limit plate; 6. Fixed frame; 7. Motor 2; 8. Rotating rod; 9. Slider; 10. Cylinder; 11. Bottom plate; 12. Cutter; 13. Fixed rod; 14. Roller; 15. Vertical rod; 16. Guide block; 17. Press plate; 18. Spring; 19. Side plate; 20. Guide roller; 21. Cross bar; 22. Guide rod; 23. Ring; 24. Connecting plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides the following technical solutions: a shearing device for lithium battery diaphragm production, including a processing table 1, a fixed plate 101 is symmetrically installed at one end of the processing table 1, a motor 3 is installed on the outer side of the fixed plate 101 on one side, and a winding roller 4 is installed at the output end of the motor 3. The winding roller 4 is started by the motor 3 to rotate to wind up the diaphragm, which plays a role in limiting one end of the diaphragm.

[0022] The other end of the processing table 1 is provided with a fixing mechanism, which includes a fixing box 2, which is symmetrically installed at the other end of the processing table 1. A vertical rod 15 is rotatably installed inside the fixing box 2. A through hole rotatably connected to the vertical rod 15 is opened on the top of the fixing box 2. The top of the vertical rod 15 extends out of the upper end of the fixing box 2 through the through hole. The upper and lower ends of the vertical rod 15 are reversely threaded with guide blocks 16. The inner side of the fixing box 2 is provided with a guide hole slidably connected to the guide block 16. The guide block 16 slides vertically through the guide hole. A pressing plate 17 is installed between the guide blocks 16. The side of the pressing plate 17 close to each other is provided with a guide hole of the same size as the guide roller 20. The two guide rollers 20 extend out of the pressure plate 17 through the matching opening. The inside of the pressure plate 17 is elastically connected to the side plate 19 through the spring 18. The side plate 19 is slidably installed on the inner side of the pressure plate 17. The guide rollers 20 are rotatably installed on the inner side of the side plate 19. When cutting, the diaphragm passes through the space between the two guide rollers 20. The guide rollers 20 play a role in positioning and supporting the diaphragm. When the two pressure plates 17 are adjusted to be close to each other by the vertical rod 15, the two guide rollers 20 are squeezed by the diaphragm and slide toward the inside of the pressure plate 17, so that the pressure plate 17 is in contact with the diaphragm, and the friction resistance with the diaphragm is increased by the pressure plate 17, thereby fixing the other end of the diaphragm.

[0023] A fixing frame 6 is installed at the middle end of the top of the processing table 1. The cross section of one end of the fixing frame 6 is in an inverted U shape. Both sides of the bottom of the fixing frame 6 are fixedly connected to the top of the processing table 1. A motor 2 7 is installed on the outside of the fixing frame 6. A rotating rod 8 is installed on the output end of the motor 2 7. The rotating rod 8 is rotatably installed on the inner side of the fixing frame 6. A slider 9 is threadedly installed on the outer side of the rotating rod 8. The top of the slider 9 is slidably connected to the top of the inner side of the fixing frame 6. A cylinder 10 is installed at the bottom of the slider 9. A bottom plate 11 is installed on the output end of the cylinder 10. A cutter 12 is installed at the bottom of the base plate 11. The up and down and linear sliding operations of the cutter 12 are realized through the motor 2 7, the rotating rod 8, the cylinder 10 and the base plate 11. A fixing rod 13 is symmetrically installed at the bottom of the base plate 11. A roller 14 is rotatably installed on the inner side of the fixing rod 13. The roller 14 is flush with the bottom of the cutter 12. When the cutter 12 cuts the diaphragm, the roller 14 always rolls with both ends of the diaphragm during cutting, which plays the role of limiting the diaphragm and can prevent the diaphragm from warping when the cutter 12 cuts.

[0024] A limit assembly is provided on the inner side of the fixed frame 6, and the limit assembly includes a limit plate 5, a cross bar 21 is rotatably installed on the middle end of one side of the limit plate 5, and a rotating hole threadedly connected to the cross bar 21 is opened at the lower end of the outer side of the fixed frame 6. The limit plate 5 is located at the inner bottom of the fixed frame 6, and the bottom of the limit plate 5 is slidably connected to the top of the processing table 1. A guide rod 22 is installed at one end of one side of the limit plate 5, and a connecting plate 24 is installed at one end of the fixed box 2. A jack slidably connected to the guide rod 22 is opened on one side of the connecting plate 24. The stability of the end of the limit plate 5 when sliding is increased by the connecting plate 24 and the guide rod 22. A ring 23 is installed on the other end of one side of the limit plate 5. The ring 23 is rotatably sleeved on the outer side of the winding roller 4. The ring 23 is used to limit the diaphragm on the winding roller 4, and the limit plate 5 is used to limit the diaphragm on the processing table 1 so that the diaphragm is in a centered position.

[0025] Working principle: When in use, the diaphragm passes through the two guide rollers 20, and the side plate 19 is driven to move by the thrust of the spring 18. The side plate 19 drives the two guide rollers 20 to squeeze the diaphragm, and then the diaphragm is pulled. The diaphragm drives the two guide rollers 20 to rotate, and then one end of the diaphragm is rolled up on the outside of the winding roller 4, and the motor 3 is started. The motor 3 drives the winding roller 4 to rotate. After the winding roller 4 is pulled to the position where cutting is required, the motor 3 is turned off, and the cross bar 21 is rotated. The cross bar 21 drives the limit plate 5, the guide rod 22 and the ring 23 Slide, limit the diaphragm to the center position through the limit plate 5 and the ring 23, and then rotate the vertical rod 15, the vertical rod 15 drives the upper and lower guide blocks 16 to slide, the guide blocks 16 drive the pressure plate 17 to approach each other, the pressure plate 17 squeezes the diaphragm and fixes it, start the motor 2 7, the motor 2 7 drives the rotating rod 8 to rotate, the rotating rod 8 drives the slider 9 to slide, and start the cylinder 10, the cylinder 10 drives the bottom plate 11 to descend, so that the cutter 12 and the roller 14 fit the diaphragm, and the slider 9 slides and drives the cutter 12 to move to cut the diaphragm.

[0026] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A shearing device for producing lithium battery separators, comprising a processing table (1), characterized in that: A fixing plate (101) is symmetrically mounted on one end of the processing table (1), a motor (3) is mounted on the outer side of the fixing plate (101) on one side, a winding roller (4) is mounted on the output end of the motor (3), and a fixing mechanism is provided on the other end of the processing table (1); A fixing frame (6) is installed at the middle end of the top of the processing table (1), a second motor (7) is installed on the outside of the fixing frame (6), a rotating rod (8) is installed on the output end of the second motor (7), a sliding block (9) is threadedly installed on the outside of the rotating rod (8), a cylinder (10) is installed at the bottom of the sliding block (9), a bottom plate (11) is installed at the output end of the cylinder (10), a cutting knife (12) is installed at the bottom of the bottom plate (11), a fixing rod (13) is symmetrically installed at the bottom of the bottom plate (11), a roller (14) is rotatably installed on the inner side of the fixing rod (13), and a limiting component is provided on the inner side of the fixing frame (6); The limiting assembly comprises a limiting plate (5), a cross bar (21) is rotatably mounted on the middle end of one side of the limiting plate (5), a guide bar (22) is mounted on one end of one side of the limiting plate (5), and a collar (23) is mounted on the other end of one side of the limiting plate (5).

2. A shearing device for producing lithium battery separators according to claim 1, characterized in that: The fixing mechanism comprises a fixing box (2), the fixing box (2) being symmetrically mounted on the other end of the processing table (1), a vertical rod (15) being rotatably mounted inside the fixing box (2), guide blocks (16) being threadedly mounted in opposite directions on the upper and lower ends of the vertical rod (15), a pressure plate (17) being mounted between the guide blocks (16), the inside of the pressure plate (17) being elastically connected to a side plate (19) via a spring (18), and a guide roller (20) being rotatably mounted on the inner side of the side plate (19).

3. A shearing device for producing lithium battery separators according to claim 2, characterized in that: The top of the fixed box (2) is provided with a through hole rotatably connected to the vertical rod (15), the inner side of the fixed box (2) is provided with a guide hole slidably connected to the guide block (16), the side plate (19) is slidably mounted on the inner side of the pressure plate (17), and the side of the pressure plate (17) close to each other is provided with an opening matched to the size of the guide roller (20).

4. A shearing device for producing lithium battery separators according to claim 2, characterized in that: The lower end of the outer side of the fixing frame (6) is provided with a rotating hole threadedly connected to the cross bar (21); a connecting plate (24) is installed at one end of the fixing box (2); a plug hole slidably connected to the guide rod (22) is provided on one side of the connecting plate (24); and the sleeve ring (23) is rotatably sleeved on the outer side of the winding roller (4).

5. A shearing device for producing lithium battery separators according to claim 1, characterized in that: The rotating rod (8) is rotatably mounted on the inner side of the fixing frame (6), the top of the sliding block (9) is slidably connected to the top of the inner side of the fixing frame (6), and the roller (14) is flush with the bottom of the cutting knife (12).

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