CN220942628U

CN220942628U - Wrinkle removing device for battery lugs

Info

Publication number: CN220942628U
Application number: CN202322743677.1U
Authority: CN
Inventors: 余朋; 薛明亮; 余招宇; 曹辉
Original assignee: Rept Battero Energy Co Ltd
Current assignee: Rept Battero Energy Co Ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-05-14
Anticipated expiration: 2033-10-12

Abstract

The utility model belongs to the technical field of battery processing, and particularly relates to a wrinkle removing device for battery lugs, which comprises the following components: the press roll assemblies are arranged in two groups and are distributed at intervals above the passing rolls of the pole piece rolling device along the length direction of the passing rolls; the adjusting assembly is used for driving the two groups of compression roller assemblies to be close to or far away from each other along the length direction of the passing roller; wherein, the compression roller assembly includes: the diameter of the press roller is gradually reduced from one end close to the roller passing end to one end close to the roller passing center. Through setting up two sets of toper compression rollers in pole piece roll-in device's roller top to through the pressure that proper arrangement compression roller acted on the roller, when battery pole piece passed through, can get rid of the fold on the pole piece tab effectively, thereby the effectual qualification rate that has improved the pole piece.

Description

Wrinkle removing device for battery lugs

Technical Field

The utility model belongs to the technical field of battery processing, and particularly relates to a wrinkle removing device for removing wrinkles of pole lugs of battery pole pieces.

Background

In the production and manufacturing process of the lithium battery, a coating process is needed before rolling the pole piece, a coating area and an uncoated area (pole lug area) are formed after the pole piece is coated according to the process requirement, the thickness of the coating area is thicker than that of the pole lug area, in the subsequent rolling process, the coating area generates larger expansion deformation in the length direction due to the action of rolling force, the pole lug area is relatively thinner, the pole lug area is not subjected to rolling force or only subjected to small rolling force, therefore, the pole lug area is not expanded in the length direction or only subjected to small expansion deformation, and the pole lug area is wrinkled due to different expansion deformation of the pole piece coating area and the pole lug area, so that the quality of the pole piece is directly influenced.

Therefore, how to avoid wrinkling of the lug in the pole piece so as not to influence scrapping of materials and improvement of new process productivity becomes a problem to be solved urgently.

Disclosure of utility model

The utility model aims to provide a wrinkle removing device for battery lugs, which is used for solving the problems in the background technology.

In order to achieve the above purpose, the following technical scheme is provided: a wrinkle-removing device for battery tabs, comprising:

Comprising the following steps:

The press roll assemblies are arranged in two groups and are distributed at intervals above the passing rolls of the pole piece rolling device along the length direction of the passing rolls;

The adjusting assembly is used for driving the two groups of compression roller assemblies to be close to or far away from each other along the length direction of the passing roller;

Wherein, the compression roller assembly includes: the compression roller is a conical roller, and the diameter of the compression roller gradually decreases from one end close to the end of the roller to one end close to the center of the roller.

In any of the above technical solutions, further, the press rolls on the two press roll assemblies are respectively arranged above the two coating areas on the outermost sides of the pole piece, and the length of the press rolls is smaller than the width of the coating area on the outermost sides of the pole piece.

In any of the above technical solutions, further, the difference between the length of the press roller and the width of the coating area on the outermost side of the pole piece is 20mm-50mm.

In any of the above technical solutions, further, the press roller assembly further includes a swing arm, one end of the swing arm is rotationally connected with the press roller, and the other end of the swing arm is rotationally arranged on the adjusting assembly and slidingly arranged along the length direction of the adjusting assembly.

In any one of the above technical solutions, further, an installation groove is formed on the swing arm, and a detachable balancing weight is configured in the installation groove; the weight of the swing arm can be adjusted by disassembling the balancing weight, so that the pressure of the press roller on the pole piece coating area is adjusted.

In any of the foregoing solutions, further, the press roll assembly further includes:

The power part is used for driving the swing arm to swing in a direction approaching or far away from the roller, so that the press roller moves in a direction approaching or far away from the roller, the weight of the swing arm is adjusted, and the pressure of the press roller on the pole piece coating area is adjusted;

A pressure sensing element; the pressure sensing element is arranged on the press roller and is used for monitoring the pressure of the press roller on the pole piece coating area.

In any of the above technical solutions, further, two mounting ear plates are disposed on the swing arm on each group of the press roller assemblies, one end of each mounting ear plate is rotationally connected with the press roller, and the other end is rotationally disposed on the adjusting assembly and slidingly disposed along the length direction of the adjusting assembly.

In any of the above technical solutions, further comprising: the adjustment assembly includes:

the screw rod is arranged in two sections with opposite spiral directions along the length direction of the screw rod;

The fixing rods are rotatably arranged at one ends of the swing arms on the press roller assemblies, which are far away from the press rollers, and are arranged in a sliding manner along the length direction of the fixing rods;

The two groups of the longitudinal adjusting arms are respectively arranged on two sections of the screw rod with opposite spiral directions; one end of the longitudinal adjusting arm is arranged in a sliding manner along the length direction of the screw rod, and the other end of the longitudinal adjusting arm is arranged in a sliding manner along the length direction of the fixed rod and is in clamping contact with the swing arm;

When the screw rod is driven to rotate by external force, the screw rod drives the two groups of longitudinal adjusting arms to be close to or far away from each other along the length direction of the passing roller, and meanwhile, the two groups of longitudinal adjusting arms drive the two groups of swing arms on the press roller assembly and the press roller to be close to or far away from each other along the length direction of the passing roller.

In any of the foregoing solutions, further, the adjusting assembly further includes: and the motor is connected with one end of the screw rod and used for driving the screw rod to rotate.

In any of the foregoing solutions, further, the longitudinal adjustment arm includes:

Each group of the longitudinal adjusting arms is provided with two connecting rods, one end of each connecting rod is arranged in a sliding manner along the length direction of the corresponding screw rod, and the other end of each connecting rod is arranged in a sliding manner along the length direction of the corresponding fixed rod and is in clamping contact with the corresponding swing arm;

a cross bar; the cross rod is perpendicular to the connecting rods and is used for connecting two connecting rods in each group of longitudinal adjusting arms so as to lift the supporting force of the connecting rods.

The beneficial effects of the utility model are as follows:

1. Through setting up two sets of toper compression rollers in pole piece roll-in device's roller top to through suitable arrangement, and the application of the pressure that the compression roller acted on the roller, when battery pole piece passed through, can get rid of the fold on the pole piece tab effectively, thereby the effectual qualification rate that has improved the pole piece.

2. The distance between the two compression roller assemblies can be adjusted through the adjusting assembly, so that pole pieces with different specifications and models can be removed.

3. The pressure of the compression roller acting on the passing roller can be adjusted, so that the applied pressure and force can be conveniently adjusted, and accurate wrinkle removal is realized.

Drawings

Figure 1 is a schematic structural view of a wrinkle removing device according to embodiments 1, 2, 4, 5;

FIG. 2 is a schematic view of the structure between the pole pieces, the pressing roller and the passing roller in examples 1-5;

Figure 3 is a schematic structural view of the wrinkle removing device according to embodiments 1, 3, 4, 5;

Reference numerals illustrate: 1. a pole piece; 11. a coating zone; 12. a tab region; 10. passing through a roller; 200. a press roll assembly; 210. a press roller; 220. swing arms; 221. a mounting groove; 222. installing an ear plate; 230. a power section; 300. an adjustment assembly; 310. a screw rod; 320. a fixed rod; 330. a longitudinal adjustment arm; 331. a connecting rod; 332. a cross bar; 340. and a motor.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Example 1:

The embodiment provides a wrinkle removing device for battery tabs, comprising:

As shown in fig. 1 to 3, the press roller assemblies 200 are arranged in two groups, and are arranged above the passing roller 10 of the pole piece rolling device at intervals along the length direction of the passing roller 10;

The adjusting assembly 300, the adjusting assembly 300 is used for driving two groups of compression roller assemblies 200 to approach each other or to separate from each other along the length direction of the passing roller 10;

Wherein the press roll assembly 200 includes: the pressing roller 210, the pressing roller 210 is a tapered roller, and the diameter thereof gradually decreases from one end near the end of the passing roller 10 to one end near the center of the passing roller 10.

In this technical scheme, at present, the pole piece is in roll-in back, and roll 10 department is crossed to the first root of pole piece roll-in device, because of there are the condition that tensile too much, supplied materials pole piece tension are uneven, equipment level changes, change new model etc. extremely easily lead to the tab to beat, and then cause a large amount of pole pieces to scrap.

Therefore, in order to prevent the tab in the pole piece from wrinkling on the roller 10, a wrinkle removing device is provided for effectively removing wrinkles after the pole piece passes through the wrinkle removing device.

Specifically, it includes a press roller assembly 200, and a press roller 210 in the press roller assembly 200 is a conical glue press roller, and when a pole piece passes between the press roller 10 and the press roller 210, the press roller 210 and the pass roller 10 are driven to rotate, and in this process, the press roller 210 contacts with and applies pressure to the pole piece. The diameter of the tapered press roller 210 gradually decreases from one end close to the end of the passing roller 10 to one end close to the center of the passing roller 10, so that the linear speeds of two ends of the press roller 210 are different, one end of the press roller 210 close to the center of the passing roller 10 is small, one end of the press roller 210 close to the end of the passing roller 10 is large in linear speed, friction resistance between the press roller 210 and the pole piece is different between one end (the outer side of the pole piece) close to the end of the passing roller 10 and one end (the inner side of the pole piece) close to the center of the passing roller 10, namely, friction force between the press roller 210 and the pole piece is small at one end (the outer side of the pole piece) close to the center of the passing roller 10, and therefore, the pole piece is stressed outwards and stressed inwards, so that the pole piece is stressed outwards, and the middle pole piece is stretched towards two sides, and the purpose of eliminating wrinkles is achieved.

By arranging two groups of conical press rollers 210 above the passing roller 10 and properly arranging the press rollers 210 to act on the passing roller 10, folds on pole lugs of the pole pieces can be effectively removed when the pole pieces of the battery pass, so that the qualification rate of the pole pieces is effectively improved.

In order to adapt to pole pieces with different specifications and sizes, the pole pieces can remove wrinkles. For this purpose, an adjusting assembly 300 is provided, and the two sets of press roller assemblies 200 are driven to approach each other or to separate from each other in the length direction of the passing roller 10, i.e., the interval between the two sets of press roller assemblies 200 is changed, by the adjusting assembly 300.

As shown in fig. 1 and 2, in this embodiment, specifically, the press rolls 210 on the two press roll assemblies 200 are respectively disposed above the two coating areas on the outermost sides of the pole piece, and the length of the press rolls 210 is smaller than the width of the coating area on the outermost sides of the pole piece.

As shown in fig. 2, the pole piece 1 includes a plurality of coating regions 11 and a plurality of tab regions 12. If the press roller 210 is also arranged on the coating area 11 on the inner side of the pole piece 1, the force of the press roller 210 on the coating area 11 on the inner side of the pole piece 1 to stretch to two sides is larger than the force of the press rollers 210 on the two coating areas 11 on the outermost side of the pole piece 1 to stretch to two sides of the pole piece 1, so that the tab area 12 on the inner side of the pole piece 1 is easy to wrinkle. Therefore, in the rolling process of the pole piece 1, in order to prevent the tab area 12 on the pole piece 1 from generating wrinkles, two pressing rollers 210 need to act on the two coating areas 11 on the outermost side of the pole piece 1, so that the tab area 12 is stretched to two sides to the greatest extent.

The length of the press roller 210 is smaller than the width of the outermost coated region 11 of the pole piece 1, and preferably, the difference between the length of the press roller 210 and the width of the outermost coated region 11 of the pole piece 1 is 20mm to 50mm. The length of the press roller 210 is set to be smaller than the width of the outermost coating area 11 of the pole piece 1 and the difference between the widths is at least 20mm, because the pole piece 1 may shift in the running process, so that the press roller 210 can be prevented from pressing onto the tab area 12 adjacent to the outermost coating area 11 of the pole piece 1 to cause the tab area 12 to be wrinkled; the length of the press roller 210 is set smaller than the width of the outermost coating region 11 of the pole piece 1 by at most 50mm, because too short a length of the press roller 210 results in insufficient friction between the remaining pole pieces 1 to reduce the wrinkle removing effect on the tab region 12 of the pole piece 1.

Example 2:

The present embodiment provides a wrinkle removing device for battery tabs, which has the following technical features in addition to the technical scheme including the above embodiment.

As shown in fig. 1, in the present embodiment, the press roller assembly 200 further includes a swing arm 220, one end of the swing arm 220 is rotatably connected to the press roller 210, and the other end is rotatably disposed on the adjustment assembly 300 and slidably disposed along the length direction of the adjustment assembly 300.

The swing arm 220 is provided with a mounting groove 221, and a detachable balancing weight is arranged in the mounting groove 221; the weight of the swing arm 220 can be adjusted by removing the weight, thereby adjusting the pressure of the press roller 210 acting on the coating region 11 of the pole piece 1.

In the present solution, on the one hand, the degree of removing wrinkles can be controlled by adjusting the pressure applied to the pole piece 1 by the press roller 210. For larger wrinkles, pressure can be increased to more thoroughly remove wrinkles; while for smaller folds the pressure can be reduced to avoid excessive pressure on the pole pieces.

On the other hand, different types of battery pole pieces may have different thickness and material properties. Through adjustable pressure setting, can adjust according to different pole piece characteristics to ensure the effective removal of fold, and avoid producing damage or excessively deforming the risk to the pole piece.

Thus, proper pressure setting may help to improve the performance and quality of the battery pole piece. Removing wrinkles can improve the flatness and balance of the pole piece, reduce internal resistance and improve energy transfer efficiency and stability of the battery. By adjusting the pressure of the press roller 210, an optimal effect can be achieved.

Specifically, the pressure exerted by the press roller 210 on the pole piece 1 is adjusted by adjusting the weight on the swing arm 220. This design allows the operator to adjust as desired to achieve the best wrinkle removal effect. And the adjustment of the weight allows fine tuning of the press roll assembly 200 to achieve accurate de-wrinkling process control. The method is beneficial to ensuring the processing quality and consistency of each pole piece and improving the consistency and reliability of products.

Example 3:

The present embodiment provides a wrinkle removing device for battery tabs, which is different from embodiment 2 in the manner of adjusting the pressure of the pressing roller 210 acting on the pole piece.

As shown in fig. 3, in the present embodiment, the platen roller assembly 200 further includes:

The power part 230 is used for driving the swing arm 220 to swing towards the direction approaching or far away from the roller 10, so that the press roller 210 moves towards the direction approaching or far away from the roller 10, and the weight of the swing arm 220 is adjusted, so that the pressure of the press roller 210 on the coating area 11 of the pole piece 1 is adjusted;

And a pressure sensing element (not shown); a pressure sensing element is mounted on the press roller 210 for monitoring the amount of pressure of the press roller 210 against the coating zone 11 of the pole piece 1.

In the present solution, by means of the power section 230 and the arrangement of the pressure sensing element, the pressure regulation can be automated and a higher accuracy can be achieved. The automated setup may enable finer pressure adjustment and control than manual adjustment. The operator can adjust the parameters according to the actual need to achieve the desired wrinkle removal effect without being limited by manual adjustment.

And for the pressure sensing element, the pressure value can be monitored in real time, and feedback information is provided for the control system, so that the pressure is ensured to be within a safety range, and excessive or insufficient pressure on the polar plate is avoided.

As shown in fig. 3, specifically, a power unit 230 is disposed at a side of the swing arm 220, the power unit 230 is an air cylinder or a hydraulic cylinder, and a pressure sensing element is disposed on the press roller 210, and the air cylinder or the hydraulic cylinder is used to drive the swing arm 220 to swing, so that the press roller 210 on the swing arm moves towards a direction approaching or separating from the passing roller 10, and when the pole piece passes, the pressure of the press roller 210 acting on the pole piece changes.

Example 4:

As shown in fig. 1, in this embodiment, further includes: the adjustment assembly 300 includes:

The screw 310, the screw 310 is set into two sections with opposite spiral directions along the length direction;

The fixing rod 320, one end of the swing arm 220 of the two groups of press roller assemblies 200 far away from the press roller 210 is rotatably arranged on the fixing rod 320, and is arranged in a sliding manner along the length direction of the fixing rod 320;

The two groups of longitudinal adjusting arms 330 are arranged, and the two groups of longitudinal adjusting arms 330 are respectively arranged on two sections of the screw rod 310 with opposite screw directions; one end of the longitudinal adjusting arm 330 is slidably disposed along the length direction of the screw rod 310, and the other end is slidably disposed along the length direction of the fixing rod 320 and is in clamping contact with the swing arm 220;

When the screw rod 310 is driven to rotate by an external force, the screw rod 310 drives the two sets of longitudinal adjusting arms 330 to approach or separate from each other along the length direction of the roller 10, and simultaneously, the two sets of longitudinal adjusting arms 330 drive the swing arms 220 on the two sets of press roller assemblies 200 and the press rollers 210 to approach or separate from each other along the length direction of the roller 10.

In this embodiment, since the press roller assembly 200 has two sets, for convenience in adjusting the distance, the screw rod 310 is adopted for this purpose, the screw rod 310 is a bidirectional screw rod 310, and in the rotation process, since the screw rod 310 has two threaded sections with different spiral directions, after the longitudinal adjusting arms 330 are disposed on the threaded sections with two different spiral directions, when the screw rod 310 is rotated, the two sets of longitudinal adjusting arms 330 approach each other or are far away from each other along the length direction of the passing roller 10, and meanwhile, the two sets of swing arms 220 are driven to approach each other or be far away from each other along the length direction of the passing roller 10, so as to achieve the purpose of adjusting the positions of the two press rollers 210 simultaneously.

The purpose of adjusting the positions of the two press rolls 210 is achieved through the synergistic effect of the screw rod 310 and the longitudinal adjusting arm 330, and the design can adapt to pole pieces with different specifications and sizes so as to achieve wrinkle removal.

The fixing rod 320 is used for supporting and stabilizing the longitudinal adjusting arm 330 and the swing arm 220, so as to ensure that the longitudinal adjusting arm 330 and the swing arm are kept stable continuously in the working process, and is helpful for providing consistent pressing force and processing efficiency, and avoiding unnecessary vibration and swing.

In this embodiment, the adjusting assembly 300 further comprises: and the motor 340 is connected with one end of the screw 310 and is used for driving the screw 310 to rotate.

In this embodiment, the screw 310 is driven to rotate by the motor 340 to achieve an accurate and flexible adjustment function.

Example 5:

As shown in fig. 1, in the present embodiment, the longitudinal adjustment arm 330 includes:

The connecting rods 331, each group of longitudinal adjusting arms 330 is provided with two connecting rods 331, one end of each connecting rod 331 is arranged in a sliding way along the length direction of the screw rod 310, and the other end of each connecting rod 331 is arranged in a sliding way along the length direction of the fixed rod 320 and is arranged in clamping contact with the swing arm (220);

A crossbar 332; the cross bars 332 are disposed perpendicular to the links 331 for connecting adjacent two links 331 in each set of longitudinal adjustment arms 330 to lift the supporting force of the links 331.

In this embodiment, two connecting rods 331 may be disposed on each group of the longitudinal adjustment arms 330, and then connected by a cross rod 332, and the combination of the connecting rods 331 and the cross rod 332 can improve the stability of the longitudinal adjustment arms 330 during movement.

In this embodiment, two mounting lugs 222 are disposed on the swing arms 220 of each set of the press roller assembly 200, one end of each mounting lug 222 is rotatably connected with the press roller 210, the other end is rotatably disposed on the fixing rod 320 and slidably disposed along the length direction of the fixing rod 320, and the connecting rod 331 of each set of the longitudinal adjustment arms 330 is disposed in clamping contact with the mounting lugs 222 of each set of the swing arms 220.

In this technical solution, two mounting lugs 222 are disposed on the swing arm 220, so that two ends of the press roller 210 can be directly mounted on one of the two mounting lugs 222, and the installation is convenient. To allow the swing arm 220 to be stably mounted on the fixing lever 320 and also to be stable during movement, the swing arm 220 is assembled on the fixing lever 320 through the other ends of the two mounting lugs 222.

The connecting rod 331 of the longitudinal adjusting arm 330 and the mounting lug 222 on the swing arm 220 can be connected in a clamping fit mode, the connecting rod 331 and the mounting lug 222 can be linked without fixing the connecting rod 331 and the mounting lug 222.

Specifically, the connecting rod 331 on the longitudinal adjusting arm 330 abuts against two opposite end surfaces or two opposite end surfaces of the two mounting lugs 223, that is, between the connecting rod 331 and the mounting lug 222, is limited along the length direction of the fixing rod 320, and when the screw rod 310 drives the longitudinal adjusting arm 330 to move, the connecting rod 331 on the longitudinal adjusting arm 330 pushes the mounting lug 222 to move on the fixing rod 320.

The embodiments of the present application have been described above with reference to the accompanying drawings, in which the embodiments of the present application and features of the embodiments may be combined with each other without conflict, the present application is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present application, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are protected by the present application.

Claims

1. A wrinkle removing device for battery tabs, comprising:

The press roller assemblies (200) are arranged in two groups, and are distributed at intervals above the passing roller (10) of the pole piece rolling device along the length direction of the passing roller (10);

An adjusting assembly (300), wherein the adjusting assembly (300) is used for driving two groups of press roller assemblies (200) to be close to or far from each other along the length direction of the passing roller (10);

Wherein the press roll assembly (200) comprises: and the pressing roller (210) is a conical roller, and the diameter of the pressing roller (210) gradually decreases from one end close to the end of the passing roller (10) to one end close to the center of the passing roller (10).

2. The wrinkle removing device for battery tabs according to claim 1, wherein the press rolls (210) on the two sets of the press roll assemblies (200) are respectively arranged above two coating areas on the outermost sides of the pole pieces, and the length of the press rolls (210) is smaller than the width of the coating area on the outermost sides of the pole pieces.

3. A battery tab de-wrinkling device according to claim 2, wherein the difference between the length of the press roll (210) and the width of the outermost coating zone of the pole piece is 20mm-50mm.

4. The device for removing wrinkles from battery tabs according to claim 1, wherein the press roller assembly (200) further comprises a swing arm (220), one end of the swing arm (220) is rotatably connected to the press roller (210), and the other end of the swing arm is rotatably disposed on the adjusting assembly (300) and slidably disposed along the length direction of the adjusting assembly (300).

5. The wrinkle removing device for battery tabs according to claim 4, wherein the swing arm (220) is provided with a mounting groove (221), and a detachable balancing weight is arranged in the mounting groove (221); the weight of the swing arm (220) can be adjusted by detaching the balancing weight, so that the pressure of the press roller (210) on the pole piece coating area is adjusted.

6. The battery tab wrinkle removal device as defined in claim 4, wherein the pressure roller assembly (200) further comprises:

The power part (230) is used for driving the swing arm (220) to swing towards a direction approaching or far away from the roller (10) so as to enable the press roller (210) to move towards the direction approaching or far away from the roller (10) to adjust the pressure of the press roller (210) on a pole piece coating area;

A pressure sensing element; the pressure sensing element is arranged on the press roller (210) and is used for monitoring the pressure of the press roller (210) on the pole piece coating area.

7. The wrinkle removing device for battery tabs according to claim 4, wherein two mounting lugs (222) are provided on the swing arm (220) of each set of the press roller assembly (200), one end of the mounting lugs (222) is rotatably connected to the press roller (210), and the other end is rotatably provided on the adjustment assembly (300) and slidably provided along the length direction of the adjustment assembly (300).

8. A device for removing wrinkles from battery tabs according to any of claims 4 to 7, wherein said adjustment assembly (300) comprises:

The screw rod (310) is arranged in two sections with opposite spiral directions along the length direction of the screw rod (310);

The two groups of swing arms (220) on the press roller assemblies (200) are rotatably arranged on the fixed rods (320) at one end far away from the press rollers (210), and are slidably arranged along the length direction of the fixed rods (320);

The longitudinal adjusting arms (330) are arranged in two groups, and the two groups of the longitudinal adjusting arms (330) are respectively arranged on two sections of the screw rod (310) with opposite screw directions; one end of the longitudinal adjusting arm (330) is arranged in a sliding way along the length direction of the screw rod (310), and the other end of the longitudinal adjusting arm is arranged in a sliding way along the length direction of the fixing rod (320) and is in clamping contact with the swing arm (220);

When the screw rod (310) is driven to rotate by external force, the screw rod (310) drives two groups of longitudinal adjusting arms (330) to be close to or far away from each other along the length direction of the roller (10), and meanwhile, the two groups of longitudinal adjusting arms (330) drive the two groups of swing arms (220) on the press roller assembly (200) and the press roller (210) to be close to or far away from each other along the length direction of the roller (10).

9. The battery tab wrinkle removal device of claim 8, wherein the adjustment assembly (300) further comprises: and the motor (340) is connected with one end of the screw rod (310) and used for driving the screw rod (310) to rotate.

10. The wrinkle removal device for battery tabs according to claim 8, wherein the longitudinal adjustment arm (330) comprises:

The connecting rods (331), each group of the longitudinal adjusting arms (330) is provided with two connecting rods (331), one end of each connecting rod (331) is arranged in a sliding manner along the length direction of the screw rod (310), and the other end of each connecting rod is arranged in a sliding manner along the length direction of the fixing rod (320) and is in clamping contact with the swing arm (220);

a crossbar (332); the cross bar (332) is arranged perpendicular to the connecting rods (331) and is used for connecting two connecting rods (331) in each group of longitudinal adjusting arms (330) so as to lift the supporting force of the connecting rods (331).