Lithium battery electrode plate protective film bending mechanism

Abstract

The utility model discloses a lithium battery electrode plate protective film bending mechanism, which relates to the technical field of lithium battery production and processing, and comprises a bracket, a longitudinal movement driving component, a leveling component for arranging a protective film to flatten the protective film, and a bending component for bending the protective film, the leveling assembly and the bending assembly are both installed at the output end of the longitudinal moving assembly. The leveling assembly is provided with a driving leveling wheel, a driven leveling wheel and a gap adjusting device, a material passing gap allowing a protective film to pass through is formed between the driving leveling wheel and the driven leveling wheel, and the gap adjusting device is connected with the driven leveling wheel; by adopting the leveling assembly and the bending assembly, leveling and bending of the protective film are automatically achieved, the bending precision is improved, and the defective rate is reduced; the gap adjusting device is adopted to adjust the material passing gap so as to adapt to protective films of different sizes and thicknesses, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technology in the field of lithium battery production and processing, in particular to a lithium battery electrode sheet protective film bending mechanism. Background Art

[0002] During the production and processing of lithium batteries, the electrode sheet protective film needs to be bent. The utility model patent with application number 201921584099.9 discloses a lithium battery electrode sheet protective film bending device. The bending device in the prior art does not use a leveling component and a bending component to automatically realize the leveling and bending of the protective film, and the bending accuracy needs to be improved; the gap adjustment device is not used to adjust the feed gap, which is not convenient for adapting to protective films of different sizes and thicknesses, and the scope of application is limited; therefore, in view of this situation, it is urgent to develop a lithium battery electrode sheet protective film bending mechanism to meet the needs of actual use. Utility Model Content

[0003] In view of this, the utility model aims to solve the deficiencies in the prior art, and its main purpose is to provide a lithium battery electrode sheet protective film bending mechanism, which automatically realizes the flattening and bending of the protective film by adopting a flattening component and a bending component, thereby improving the bending accuracy and reducing the defective rate; and realizes the adjustment of the feed gap by adopting a gap adjustment device to adapt to protective films of different sizes and thicknesses, and has a wide range of applications.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lithium battery electrode sheet protective film bending mechanism comprises a bracket, a longitudinal drive assembly, a leveling assembly for arranging the protective film to make it flat, and a bending assembly for bending the protective film, the longitudinal drive assembly is installed on the bracket, the leveling assembly and the bending assembly are both installed at the output end of the longitudinal drive assembly; the leveling assembly has an active leveling wheel, a driven leveling wheel and a gap adjustment device, a material passing gap for the protective film to pass through is formed between the active leveling wheel and the driven leveling wheel, and the gap adjustment device is connected to the driven leveling wheel.

[0006] As a preferred solution: the gap adjustment device includes a mounting block, a support rod and an adjusting bolt. The support rod is movably arranged on the upper side of the mounting block through the adjusting bolt, and the driven leveling wheel is rotatably sleeved on the support rod.

[0007] As a preferred solution: the leveling assembly further comprises a rotary drive cylinder, the active leveling wheel is mounted on the output end of the rotary drive cylinder, and the active leveling wheel is rotatably arranged on the mounting block.

[0008] As a preferred solution: the leveling assembly also includes a material discharging seat for placing the protective film, and a receiving groove for accommodating the active leveling wheel is provided in the middle of the material discharging seat.

[0009] As a preferred solution: the bending assembly includes a bending drive cylinder and a bending block, the bending drive cylinder is vertically arranged on the upper side of the bracket, the bending block is installed on the axial end of the bending drive cylinder, and the bending block can be lowered to correspond to the protective film.

[0010] As a preferred solution: the longitudinal drive assembly includes a longitudinal drive cylinder and a longitudinal drive slide, the longitudinal drive cylinder is installed on the bracket, the longitudinal slide is installed on the shaft end of the longitudinal drive cylinder, and the leveling assembly and the bending assembly are both installed on the longitudinal slide.

[0011] As a preferred solution: the longitudinal drive assembly also includes a guide rail for guiding the longitudinal slide, the guide rail is longitudinally arranged on the bracket, and the longitudinal slide is slidably matched with the guide rail.

[0012] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that the flattening and bending of the protective film are automatically realized by adopting the flattening component and the bending component, the bending accuracy is improved, and the defective rate is reduced; the position of the flattening component and the bending component is moved by adopting the longitudinal driving component to meet the position movement requirements; the gap adjustment device is adopted to adjust the material gap to adapt to protective films of different sizes and thicknesses, and the application range is wide.

[0013] In order to more clearly illustrate the structural features and effects of the present invention, it is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the lithium battery electrode sheet protective film bending mechanism of the utility model from the first perspective;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the lithium battery electrode sheet protective film bending mechanism of the utility model from a second viewing angle;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the leveling component of the utility model;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the material discharge seat of the utility model.

[0018] Description of the accompanying drawings:

[0019] In the figure: 10, bracket; 20, longitudinal drive assembly; 21, longitudinal drive cylinder; 22, longitudinal slide; 23, guide rail; 30, leveling assembly; 31, rotation drive cylinder; 32, active leveling wheel; 33, driven leveling wheel; 34, gap adjustment device; 341, mounting block; 342, support rod; 343, adjusting bolt; 35, discharge seat; 351, accommodating groove; 40, bending assembly; 41, bending drive cylinder; 42, bending block. DETAILED DESCRIPTION

[0020] The utility model Figures 1 to 4 As shown, a lithium battery electrode sheet protective film bending mechanism includes a bracket 10, a longitudinal drive assembly 20, a flattening assembly 30 for arranging the protective film to make it flat, and a bending assembly 40 for bending the protective film, wherein:

[0021] The longitudinal driving assembly 20 is installed on the bracket 10, and the leveling assembly 30 and the bending assembly 40 are both installed at the output end of the longitudinal moving assembly; the leveling assembly 30 has an active leveling wheel 32, a driven leveling wheel 33 and a gap adjustment device 34, and a material passing gap for the protective film to pass through is formed between the active leveling wheel 32 and the driven leveling wheel 33, and the gap adjustment device 34 is connected to the driven leveling wheel 33.

[0022] The longitudinal drive assembly 20 drives the leveling assembly 30 and the bending assembly 40 to move longitudinally so that the leveling assembly 30 and the bending assembly 40 correspond to the position of the protective film; the protective film passes through the material transfer gap between the active leveling wheel 32 and the driven leveling wheel 33, and the active leveling wheel 32 and the driven leveling wheel 33 rotate to level the protective film, and the gap adjustment device 34 adjusts the gap between the active leveling wheel 32 and the driven leveling wheel 33 to adapt to protective films of different sizes.

[0023] By adopting the leveling component 30 and the bending component 40, the leveling and bending of the protective film are automatically realized, the bending accuracy is improved, and the defective rate is reduced; by adopting the longitudinal drive component 20, the position of the leveling component 30 and the bending component 40 can be moved to meet the position movement requirements; by adopting the gap adjustment device 34, the material feeding gap can be adjusted to adapt to protective films of different sizes and thicknesses, and the application range is wide.

[0024] The longitudinal drive assembly 20 includes a longitudinal drive cylinder 21 and a longitudinal slide 22. The longitudinal drive cylinder 21 is installed on the bracket 10, and the longitudinal slide 22 is installed on the axial end of the longitudinal drive cylinder 21. The leveling assembly 30 and the bending assembly 40 are both installed on the longitudinal slide 22.

[0025] The longitudinal driving assembly 20 further includes a guide rail 23 for guiding the longitudinal sliding seat 22 . The guide rail 23 is longitudinally arranged on the bracket 10 , and the longitudinal sliding seat 22 is slidably matched with the guide rail 23 .

[0026] The longitudinal drive cylinder 21 drives the longitudinal slide 22 to move longitudinally, meeting the position movement requirement; the guide rail 23 is used to improve the accuracy of the longitudinal slide position movement.

[0027] The gap adjustment device 34 includes a mounting block 341 , a support rod 342 and an adjusting bolt 343 . The support rod 342 is movably disposed on the upper side of the mounting block 341 via the adjusting bolt 343 . The driven leveling wheel 33 is rotatably sleeved on the support rod 342 .

[0028] The adjusting bolt 343 adjusts the height of the support rod 342 on the mounting block 341 , thereby adjusting the position of the driven leveling wheel 33 on the mounting block 341 .

[0029] The leveling assembly 30 further includes a rotary drive cylinder 31 . The active leveling wheel 32 is mounted on the output end of the rotary drive cylinder 31 . The active leveling wheel 32 is rotatably disposed on the mounting block 341 .

[0030] The rotary driving cylinder 31 drives the active leveling wheel 32 to rotate, and the rotation of the active leveling wheel 32 drives the driven leveling wheel 33 to rotate, thereby leveling the protective film.

[0031] The leveling assembly 30 further includes a material discharging seat 35 for placing the protective film, and a receiving groove 351 for receiving the active leveling wheel 32 is provided in the middle of the material discharging seat 35 .

[0032] The accommodating groove 351 is used to facilitate the accommodation of the active leveling wheel 32, and the overall structure is compact and occupies a small area.

[0033] The bending assembly 40 includes a bending drive cylinder 41 and a bending block 42. The bending drive cylinder 41 is vertically arranged on the upper side of the bracket 10, and the bending block 42 is installed on the axial end of the bending drive cylinder 41. The bending block 42 can be lowered to correspond to the protective film.

[0034] The bending drive cylinder 41 drives the bending block 42 to descend, and the bending block 42 descends to press against the protective film and bend it.

[0035] The use method and principle of the lithium battery electrode sheet protective film bending mechanism are as follows:

[0036] The longitudinal drive assembly drives the leveling assembly and the bending assembly to move longitudinally so that the leveling assembly and the bending assembly correspond to the position of the protective film; the protective film passes through the material transfer gap between the active leveling wheel and the driven leveling wheel, and the active leveling wheel and the driven leveling wheel rotate to level the protective film, and the gap adjustment device adjusts the gap between the active leveling wheel and the driven leveling wheel to adapt to protective films of different sizes.

[0037] The design focus of the utility model is that the flattening and bending of the protective film are automatically realized by adopting the flattening component and the bending component, the bending accuracy is improved, and the defective rate is reduced; the position of the flattening component and the bending component is moved by adopting the longitudinal driving component to meet the position movement requirements; the gap adjustment device is adopted to adjust the material gap to adapt to protective films of different sizes and thicknesses, and the application range is wide.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A lithium battery electrode sheet protective film bending mechanism, characterized in that: It includes a bracket, a longitudinal drive component, a leveling component for arranging the protective film to make it flat, and a bending component for bending the protective film. The longitudinal drive component is installed on the bracket, and the leveling component and the bending component are both installed at the output end of the longitudinal drive component; the leveling component has an active leveling wheel, a driven leveling wheel and a gap adjustment device, a material passing gap for the protective film to pass through is formed between the active leveling wheel and the driven leveling wheel, and the gap adjustment device is connected to the driven leveling wheel.

2. The lithium battery electrode sheet protective film bending mechanism according to claim 1, characterized in that: The gap adjustment device comprises a mounting block, a support rod and an adjusting bolt. The support rod is movably arranged on the upper side of the mounting block via the adjusting bolt, and the driven leveling wheel is rotatably sleeved on the support rod.

3. The lithium battery electrode sheet protective film bending mechanism according to claim 2, characterized in that: The leveling assembly also includes a rotary drive cylinder, the active leveling wheel is installed at the output end of the rotary drive cylinder, and the active leveling wheel is rotatably arranged on the mounting block.

4. The lithium battery electrode sheet protective film bending mechanism according to claim 2, characterized in that: The leveling assembly also includes a material discharging seat for placing the protective film, and a receiving groove for accommodating the active leveling wheel is provided in the middle of the material discharging seat.

5. The lithium battery electrode sheet protective film bending mechanism according to claim 1, characterized in that: The bending assembly includes a bending drive cylinder and a bending block. The bending drive cylinder is vertically arranged on the upper side of the bracket, and the bending block is installed on the axial end of the bending drive cylinder. The bending block can be lowered to correspond to the protective film.

6. The lithium battery electrode sheet protective film bending mechanism according to claim 1, characterized in that: The longitudinal drive assembly comprises a longitudinal drive cylinder and a longitudinal slide. The longitudinal drive cylinder is mounted on a bracket, the longitudinal slide is mounted on the shaft end of the longitudinal drive cylinder, and the leveling assembly and the bending assembly are both mounted on the longitudinal slide.

7. The lithium battery electrode sheet protective film bending mechanism according to claim 6, characterized in that: The longitudinal drive assembly also includes a guide rail for guiding the longitudinal slide. The guide rail is longitudinally arranged on the bracket, and the longitudinal slide is slidably matched with the guide rail.

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