Edge warping prevention device for battery diaphragm production

Abstract

The utility model discloses an edge warping prevention device for battery diaphragm production, and belongs to the field of battery diaphragm production, the edge warping prevention device comprises a mounting plate, a mounting groove is formed in the mounting plate, a lifting device is arranged in the mounting groove, and an edge warping prevention device is arranged on the side surface of the mounting plate; the edge warping prevention device comprises a rotating rod, the rotating rod is arranged on the front face of the mounting plate, one end of the rotating rod is fixedly connected with a disc, a containing groove is formed in the side face of the disc, a fixing shaft is rotationally connected into the containing groove, and the outer wall of the fixing shaft is fixedly sleeved with a connecting block C. The conicity of the conical roller piece can be adjusted through the edge warping prevention device, then the conical roller piece can be attached to the edges of battery diaphragms produced by production molds with different gradients, the application range and practicability are improved, the phenomenon that black edges are formed on the edges of the battery diaphragms is avoided, and therefore the production quality of the battery diaphragms is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the field of battery separator production, in particular to an edge warping prevention device for battery separator production. BACKGROUND

[0002] In the structure of a lithium battery, a separator is one of the key inner components. The performance of the separator determines the interface structure and internal resistance of the battery, and directly affects the capacity, cycle and safety performance of the battery. A separator with excellent performance plays an important role in improving the comprehensive performance of the battery. The main function of the separator is to separate the positive and negative electrodes of the battery to prevent short circuit caused by the contact of the two electrodes. In addition, the separator also has the function of allowing electrolyte ions to pass through. The separator material is not conductive, and its physical and chemical properties have a great influence on the performance of the battery. Different types of batteries use different separators. For the lithium battery series, since the electrolyte is an organic solvent system, a separator material resistant to organic solvents is required, and a high-strength thin polyolefin porous film is generally used.

[0003] The patent document with the publication number CN220763503U discloses an edge warping prevention device for battery separator production, which comprises two sets of limiting components, both of which are symmetrically arranged on both sides of the battery separator feeding direction between the forming roller group and the guide roller group on the forming machine. The limiting component comprises a plurality of limiting pieces, and the limiting piece comprises a fixed plate and a conical roller. The conical roller is rotatably arranged on the fixed plate. The diameter of the conical roller near one end of the battery separator is smaller than the diameter of the other end. The conical roller is located at the upper end of the battery separator and is in close contact with the edge of the battery separator.

[0004] The conicity of the conical roller in the above-mentioned application document is fixed and cannot be adjusted, so it cannot always be in close contact with the edges of the battery separators produced by different molds, and the scope of application is limited. Content of the utility model

[0005] The utility model provides a kind of anti-edge lifting device for battery diaphragm production, solve the problem presented in the above background art.To achieve the above object, the utility model is realized by the following technical solutions:A kind of anti-edge lifting device for battery diaphragm production, including mounting plate, its characterized in that: the inside of the mounting plate is provided with mounting groove, the inside of the mounting groove is provided with lifting device, the side of the mounting plate is provided with anti-edge lifting device;The anti-edge lifting device includes rotating rod, the rotating rod is arranged at the front of mounting plate, one end of the rotating rod is fixedly connected with disc, the side of the disc is provided with accommodating groove, the inside of the accommodating groove is rotatably connected with fixed shaft, the outer wall of the fixed shaft is fixedly provided with connecting block C, the other end of the connecting block C is fixedly connected with conical roller piece, the outer wall of the rotating rod is slidably connected with movable ring, the outer wall of the movable ring is fixedly connected with connecting block A, the outer wall of the connecting block A is rotatably connected with connecting rod, the other end of the connecting rod is rotatably connected with connecting block B.

[0006] Preferably, the connecting block B is fixedly connected to the inner wall of the conical roller piece.

[0007] Preferably, the front of the mounting plate is provided with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a sliding block, the outer wall of the movable ring is provided with an annular groove, and the sliding block is slidably connected in the annular groove.

[0008] Preferably, the lifting device includes a motor, the motor is fixedly connected to the inside of the mounting groove, the output end of the motor is fixedly connected with a threaded rod, and the outer wall of the threaded rod is threadedly connected with a moving block.

[0009] Preferably, the two sides of the moving block are slidably connected with the inner wall of the mounting groove.

[0010] Preferably, the rotating rod is rotatably connected to the outer wall of the moving block through a bearing, and the electric telescopic rod is fixedly connected to the outer wall of the moving block.

[0011] The application has the following advantages:

[0012] (1) The anti-edge lifting device can adjust the conicity of the conical roller piece, which can make it fit the edges of battery diaphragms produced by production molds with different inclinations, improve the scope of application and practicality, avoid the formation of black edges on the edges of battery diaphragms, and ensure the production quality of battery diaphragms.

[0013] (2) The motor is started to drive the threaded rod to rotate, which can drive the moving block to lift on its outer wall, and then drive the anti-edge lifting device to lift, so as to prevent the edges of battery diaphragms of different heights from lifting, and the installation height of the moving block needs to be adjusted at any time. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The illustrative embodiments of the application, and their description, do not limit the application. In the drawings:

[0015] Figure 1 is the overall structure schematic diagram of the utility model;

[0016] Figure 2 is the local sectional structure schematic diagram of the utility model;

[0017] Figure 3 is the local sectional structure schematic diagram of the utility model; Figure 2 is the local sectional structure schematic diagram of the utility model;

[0018] Figure 4 is the local sectional structure schematic diagram of the utility model.

[0019] In the above figures,

[0020] 1, mounting plate; 2, mounting groove; 41, motor; 42, threaded rod; 43, moving block; 51, rotating rod; 52, disc; 53, accommodating groove; 54, fixed shaft; 55, connecting block C; 56, conical roller piece; 58, movable ring; 59, connecting block A; 510, connecting rod; 511, connecting block B; 512, electric telescopic rod; 513, sliding block; 514, annular groove. DETAILED DESCRIPTION

[0021] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should belong to the scope of protection of the present application.

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0023] Embodiment 1

[0024] Referring to Figures 1-4The embodiment provides a battery diaphragm production anti-edge lifting device, which comprises a mounting plate 1, a mounting groove 2 is formed in the inside of the mounting plate 1, a lifting device is arranged in the inside of the mounting groove 2, and an anti-edge lifting device is arranged on the side of the mounting plate 1.

[0025] When the conicity of the conical roller piece 56 needs to be adjusted, the electric telescopic rod 512 is started to drive the movable ring 58 to slide outwards on the outer wall of the rotating rod 51 through the sliding block 513, the connecting block A 59 moves, the bottom of the connecting rod 510 moves outwards, the other end of the connecting rod 510 pushes the conical roller piece 56, one end of the conical roller piece 56 rotates on the outer wall of the fixed shaft 54 through the connecting block C 55, the conicity of the conical roller piece 56 can be adjusted, the conical roller piece 56 can be matched with the edges of battery diaphragms produced by production molds with different inclinations, the application range and practicality are improved, the black edge phenomenon of the edges of the battery diaphragm is avoided, and therefore the production quality of the battery diaphragm is ensured.

[0026] Embodiment 2

[0027] See Figures 1-4 On the basis of the embodiment 1, the lifting device comprises a motor 41, the motor 41 is fixedly connected in the inside of the mounting groove 2, the output end of the motor 41 is fixedly connected with a threaded rod 42, and the outer wall of the threaded rod 42 is threadedly connected with a moving block 43. The two sides of the moving block 43 are slidably connected with the inner walls of the mounting groove 2. The rotating rod 51 is rotatably connected to the outer wall of the moving block 43 through a bearing, and the electric telescopic rod 512 is fixedly connected to the outer wall of the moving block 43.

[0028] In specific use, the motor 41 is started to drive the threaded rod 42 to rotate, so that the moving block 43 can be driven to ascend and descend on the outer wall, and the moving block 43 can slide in the installation groove 2, thereby guaranteeing stability, and the moving block 43 ascending and descending can drive the anti-warping device, thereby preventing the edges of the battery diaphragm of different heights from warping, and the installation height of the moving block 43 needs to be adjusted at any time.

[0029] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. A device for preventing edge curling in the production of battery separators, comprising a mounting plate (1), characterized in that: The inside of the mounting plate (1) is provided with a mounting groove (2), the inside of the mounting groove (2) is provided with a lifting device, the side of the mounting plate (1) is provided with an anti-warping device; The anti-warping device comprises a rotating rod (51), the rotating rod (51) is arranged on the front surface of the mounting plate (1), one end of the rotating rod (51) is fixedly connected with a disc (52), the side of the disc (52) is provided with a containing groove (53), the inside of the containing groove (53) is rotatably connected with a fixed shaft (54), the outer wall of the fixed shaft (54) is fixedly sleeved with a connecting block C (55), the other end of the connecting block C (55) is fixedly connected with a conical roller piece (56), the outer wall of the rotating rod (51) is slidably connected with a movable ring (58), the outer wall of the movable ring (58) is fixedly connected with a connecting block A (59), the outer wall of the connecting block A (59) is rotatably connected with a connecting rod (510), the other end of the connecting rod (510) is rotatably connected with a connecting block B (511).

2. The edge warping prevention device for battery separator production according to claim 1, characterized in that: The connecting block B (511) is fixedly connected to the inner wall of the conical roller piece (56).

3. The device for preventing edge curling in the production of a battery separator according to claim 1, wherein: The front surface of the mounting plate (1) is provided with an electric telescopic rod (512), the output end of the electric telescopic rod (512) is fixedly connected with a sliding block (513), the outer wall of the movable ring (58) is provided with an annular groove (514), and the sliding block (513) is slidably connected in the annular groove (514).

4. The edge lifting prevention device for battery separator production according to claim 3, characterized in that: The lifting device comprises a motor (41), the motor (41) is fixedly connected in the mounting groove (2), the output end of the motor (41) is fixedly connected with a threaded rod (42), and the outer wall of the threaded rod (42) is threadedly connected with a moving block (43).

5. The device for preventing edge curling for battery separator production according to claim 4, characterized in that: The two sides of the moving block (43) are slidably connected with the inner wall of the mounting groove (2).

6. The device for preventing edge curling in the production of a battery separator according to claim 5, wherein: The rotating rod (51) is rotatably connected to the outer wall of the moving block (43) through a bearing, and the electric telescopic rod (512) is fixedly connected to the outer wall of the moving block (43).

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