Lithium battery winding equipment

Abstract

The utility model relates to the technical field of lithium battery production, and discloses lithium battery winding equipment which comprises a bracket, a winding device and a winding device, the extrusion assembly comprises a connecting plate, a supporting frame, extrusion rollers and sliding blocks, the connecting plate is fixedly connected with the support, the supporting frame is elastically connected with the connecting plate, the side wall of the supporting frame is elastically connected with the two sliding blocks, the side walls of the two sliding blocks are each rotationally connected with one extrusion roller, and the two extrusion rollers are close to or away from each other; the sliding blocks are pushed by the first springs to slide in the corresponding sliding grooves, then the displacement of the extrusion rollers is adjusted, the two extrusion rollers can abut against the outer wall of the battery shell at the same time, raw materials wrapping the battery are fixed and extruded through the two extrusion rollers, the wrapping material is more compact, and meanwhile, the wrapping efficiency is improved. The two extrusion rollers can be far away from each other when abutting against the exterior of the battery, and then the two extrusion rollers can flatten the coated material, so that the coated material is kept flat, and the coating effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, and in particular to a lithium battery winding device. Background Technology

[0002] A lithium-ion battery winding machine is an automated device for producing wound lithium-ion batteries. During the production process, an adhesive applicator is used to apply adhesive tape to the battery cells.

[0003] The prior art discloses a lithium battery winding device (publication number: CN221805616U), including a base; the wall of the base is provided with a clamping plate for fixing the battery shell, and the wall of the base is also provided with a connecting plate. Two clamping rollers are rotatably connected to the wall of the connecting plate. The two clamping rollers can simultaneously abut against the battery shell fixed by the clamping plate. The clamping plate and the connecting plate are elastically connected to the base through the same adjustment component and the elastic force can be adjusted.

[0004] In the prior art, two rollers that can be close to the outside of the battery are set to squeeze the coating material, so that the coating material is tightly adhered. However, the rollers move parallel to the battery, and the distance between the two rollers is fixed. When the rollers touch the outside of the battery, the material between the two rollers may be in a loose state, which will affect the subsequent multi-turn coating and form wrinkles.

[0005] Therefore, we propose a lithium battery winding device. Utility Model Content

[0006] The present invention mainly solves the technical problem that it is difficult to flatten the outer coating material of the battery when the spacing between the extrusion rollers is fixed, and provides a lithium battery winding device.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a lithium battery winding device, comprising:

[0008] The bracket has a first guide roller and a leveling roller rotatably connected to one side.

[0009] An extrusion assembly is disposed on one side of the first guide roller for crushing. The extrusion assembly includes a connecting plate, a support frame, extrusion rollers, and sliding blocks. The connecting plate is fixedly connected to the support frame, and the support frame is elastically connected to the connecting plate. Two sliding blocks are elastically connected to the side wall of the support frame, and each of the two sliding blocks is rotatably connected to an extrusion roller. The two extrusion rollers are close to or far from each other.

[0010] In a preferred embodiment of this utility model, the extrusion assembly further includes a slide groove, and two slide grooves are formed on the side wall of the support frame, with the sliding block slidably disposed in the corresponding slide groove.

[0011] In a preferred embodiment of this utility model, the chute is formed into an arc-shaped groove, the sliding block is an arc-shaped block, the sliding block is adapted to the chute, and the extrusion roller is rotatably connected to the end face of the sliding block.

[0012] In a preferred embodiment of the present invention, the extrusion assembly further includes a first spring, one end of which is fixedly connected to the sliding block, and the other end of which is fixedly connected to the inner wall of the support frame. The first spring is located in the groove.

[0013] In a preferred embodiment of the present invention, the extrusion assembly further includes a pull rod, an adjusting nut, and a second spring. The pull rod is slidably connected to the connecting plate, the support frame is fixedly connected to the pull rod, the adjusting nut is threadedly connected to the pull rod, and a second spring is provided between the adjusting nut and the connecting plate. The second spring can push the adjusting nut closer to the support frame.

[0014] In a preferred embodiment of this utility model, two circular holes are provided on the side wall of the connecting plate, and the same pull rod is slidably connected in each circular hole. The support frame is fixedly connected to the ends of the two pull rods.

[0015] In a preferred embodiment of this utility model, the pull rod is threaded, the second spring is sleeved on the outside of the pull rod, and the adjusting nut can compress the second spring to deform.

[0016] This invention provides a lithium battery winding device. It has the following advantages:

[0017] 1. This lithium battery winding equipment uses a first spring to push a sliding block to slide in a corresponding groove, thereby adjusting the displacement of the extrusion rollers. The two extrusion rollers can simultaneously abut against the outer wall of the battery casing, fixing and squeezing the material covering the outside of the battery, making the covering material denser. At the same time, the two extrusion rollers move away from each other when they abut against the outside of the battery, thus flattening the covering material, keeping it flat and improving the covering effect.

[0018] 2. This lithium battery winding equipment, by rotating the adjusting nut, compresses the second spring, causing the second spring to deform. The preload of the second spring can be adjusted, thereby adjusting the thrust of the second spring on the adjusting nut. The force of the pull rod pushing the support frame to compress the battery can be adjusted within a certain range. With two adjustable-gap compression rollers, it has stronger adaptability to the external coating of batteries of different diameters and a wider range of applications. Attached Figure Description

[0019] Figure 1 This is one of the overall perspective views of this utility model;

[0020] Figure 2 This is the second overall perspective view of the present utility model;

[0021] Figure 3 This is a perspective view of the extrusion assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the sliding block installed on the support frame of this utility model.

[0023] Legend: 10. Bracket; 11. First guide roller; 12. Leveling roller; 20. Connecting plate; 21. Support frame; 22. Extrusion roller; 23. Sliding block; 24. Slide groove; 25. First spring; 30. Pull rod; 31. Adjusting nut; 32. Second spring. Detailed Implementation

[0024] A lithium battery winding device, such as Figure 1 and Figure 2 As shown, it includes:

[0025] The bracket 10 has a first guide roller 11 and a leveling roller 12 rotatably connected to one side.

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, the extrusion assembly is disposed on one side of the first guide roller 11 for crushing. The extrusion assembly includes a connecting plate 20, a support frame 21, an extrusion roller 22, and a sliding block 23. The connecting plate 20 is fixedly connected to the bracket 10, and the support frame 21 is elastically connected to the connecting plate 20. Two sliding blocks 23 are elastically connected to the side wall of the support frame 21. Each of the two sliding blocks 23 is rotatably connected to an extrusion roller 22. The two extrusion rollers 22 are close to or far from each other. The extrusion assembly also includes a groove 24. Two grooves 24 are opened on the side wall of the support frame 21. The sliding blocks 23 are slidably disposed in the corresponding grooves 24. The grooves 24 form arc-shaped grooves. The sliding blocks 23 are arc-shaped blocks. The sliding blocks 23 are adapted to the grooves 24. The end faces of the extrusion roller 22 and the sliding blocks 23 are rotatably connected. The extrusion assembly also includes a first spring 25. One end of the first spring 25 is fixedly connected to the sliding block 23, and the other end of the first spring 25 is fixedly connected to the inner wall of the support frame 21. The first spring 25 is located in the groove 24.

[0027] In this scheme, by setting two connecting plates 20, the first spring 25 pushes the sliding block 23 to slide in the corresponding groove 24, thereby adjusting the displacement of the extrusion roller 22. The two extrusion rollers 22 can simultaneously abut against the outer wall of the battery casing, and fix and extrude the raw material covering the outside of the battery through the two extrusion rollers 22, making the covering material denser. At the same time, the two extrusion rollers 22 will move away from each other when they abut against the outside of the battery, so that the two extrusion rollers 22 can flatten the covering material, making the covering material keep flat and improving the covering effect.

[0028] like Figure 3As shown, the extrusion assembly also includes a pull rod 30, an adjusting nut 31, and a second spring 32. The pull rod 30 is slidably connected to the connecting plate 20, the support frame 21 is fixedly connected to the pull rod 30, the adjusting nut 31 is threadedly connected to the pull rod 30, and the second spring 32 is provided between the adjusting nut 31 and the connecting plate 20. The second spring 32 can push the adjusting nut 31 closer to the support frame 21. Two round holes are opened on the side wall of the connecting plate 20, and the same pull rod 30 is slidably connected in each round hole. The support frame 21 is fixedly connected to the ends of the two pull rods 30. The pull rod 30 is threaded, and the second spring 32 is sleeved on the outside of the pull rod 30. The adjusting nut 31 can compress the second spring 32 to deform.

[0029] By rotating the adjusting nut 31, the adjusting nut 31 compresses the second spring 32, causing the second spring 32 to deform. The preload of the second spring 32 can be adjusted, and thus the thrust of the second spring 32 to the adjusting nut 31 can be adjusted. The force of the pull rod 30 pushing the support frame 21 to compress the battery can be adjusted within a certain range. With the two adjustable-gap compression rollers 22, it has stronger adaptability to the external coating of batteries of different diameters and a wider range of applications.

[0030] The working principle of this utility model is as follows: the first spring 25 pushes the sliding block 23 to slide in the corresponding groove 24, thereby adjusting the displacement of the extrusion roller 22. The two extrusion rollers 22 can simultaneously abut against the outer wall of the battery casing. The two extrusion rollers 22 fix and extrude the raw materials covering the outside of the battery. Rotating the adjusting nut 31 causes the adjusting nut 31 to compress the second spring 32, causing the second spring 32 to deform. The preload of the second spring 32 can be adjusted, thereby adjusting the pushing force of the second spring 32 on the adjusting nut 31. The force of the pull rod 30 pushing the support frame 21 to extrude the battery can be adjusted within a certain range.

[0031] The coating material is guided by guide roller 11 and leveling roller 12, and the material is coated on the outside of the battery by rotating the battery.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium battery winding device, characterized in that, include: The bracket (10) has a first guide roller (11) and a leveling roller (12) rotatably connected to one side of the bracket (10). The extrusion assembly is set on one side of the first guide roller (11) for crushing. The extrusion assembly includes a connecting plate (20), a support frame (21), an extrusion roller (22) and a sliding block (23). The connecting plate (20) is fixedly connected to the bracket (10), and the support frame (21) is elastically connected to the connecting plate (20). Two sliding blocks (23) are elastically connected to the side wall of the support frame (21). Each of the two sliding blocks (23) is rotatably connected to an extrusion roller (22). The two extrusion rollers (22) are close to or far from each other.

2. The lithium battery winding equipment according to claim 1, characterized in that: The extrusion assembly also includes a slide groove (24), and two slide grooves (24) are opened on the side wall of the support frame (21), and the sliding block (23) is slidably disposed in the corresponding slide groove (24).

3. The lithium battery winding equipment according to claim 2, characterized in that: The chute (24) forms an arc-shaped groove, the sliding block (23) is an arc-shaped block, the sliding block (23) is adapted to the chute (24), and the end face of the extrusion roller (22) is rotatably connected to the sliding block (23).

4. The lithium battery winding equipment according to claim 2, characterized in that: The extrusion assembly also includes a first spring (25), one end of which is fixedly connected to the sliding block (23), and the other end of which is fixedly connected to the inner wall of the support frame (21). The first spring (25) is located in the groove (24).

5. The lithium battery winding equipment according to claim 1, characterized in that: The extrusion assembly also includes a pull rod (30), an adjusting nut (31), and a second spring (32). The pull rod (30) is slidably connected to the connecting plate (20), the support frame (21) is fixedly connected to the pull rod (30), the adjusting nut (31) is threadedly connected to the pull rod (30), and the second spring (32) is provided between the adjusting nut (31) and the connecting plate (20). The second spring (32) can push the adjusting nut (31) closer to the support frame (21).

6. The lithium battery winding equipment according to claim 5, characterized in that: The side wall of the connecting plate (20) has two round holes, and the same pull rod (30) is slidably connected in each round hole. The support frame (21) is fixedly connected to the ends of the two pull rods (30).

7. The lithium battery winding equipment according to claim 5, characterized in that: The pull rod (30) is threaded, and the second spring (32) is sleeved on the outside of the pull rod (30). The adjusting nut (31) can compress the second spring (32) to deform.

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