Dry-method electrode film removing tool

Abstract

The utility model discloses a dry method electrode film removing tool which comprises a machine frame and a dry method electrode, a first guide roller, a second guide roller, a third guide roller, a fourth guide roller, a fifth guide roller and a sixth guide roller are rotationally installed on the machine frame, and optical shafts are installed on the machine frame and located on one side of the first guide roller and one side of the second guide roller. A plurality of movable seats are adjustably mounted on the optical axis, a clamping plate is mounted on each movable seat, a scraper blade is clamped by the clamping plates, dust suction pipes are mounted at the positions, above and below the first guide roller, of the rack, and a plurality of corrugated suction pipes are mounted on the dust suction pipes. According to the utility model, the scraper is used, the speed of the original equipment is relatively low in the laminating process, the polar film is detected and accurately positioned through the CCD, the polar film in an unglued area is continuously shoveled and then is sucked away through the negative pressure suction port, and the CCD not only controls and adjusts the position of the scraper, but also can find whether the polar film is left at the blank, so that the production efficiency and the product quality safety are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of dry electrode film removal technology, specifically a dry electrode film removal tooling. Background Technology

[0002] Electrodes are a crucial component of batteries, providing a site for electrochemical reactions. Electrode fabrication methods typically include wet and dry processes. The dry electrode fabrication method utilizes high-speed shearing to fibrillate active materials, conductive agents, and binders into a self-supporting film. The active materials, conductive agents, and binders are then uniformly mixed and rolled onto a current collector to form the electrode. Dry electrode manufacturing eliminates the need for solvents, significantly reducing volatile organic compound (VOC) emissions and making it more environmentally friendly. It also avoids the energy and time costs associated with subsequent drying processes. Compared to the wet process, which requires multiple steps such as mixing slurry, coating, and drying, the dry process directly combines active materials, conductive agents, and binders through physical methods (such as pressing or hot pressing), simplifying the entire production process. Currently, dry electrode fabrication can be carried out using dry electrode production lines.

[0003] Currently, the industry uses a blow needle and suction tube method to process zebra-coated carbon-coated foil dry-coated electrodes in the slitting process, which greatly reduces the slitting efficiency. Moreover, the strength of the suctioned electrode film is very poor, and it is often easily broken by suction or blown. Manual intervention is required at the electrode film junction, leaving residual film, which leads to short circuit safety risks in the subsequent products. Utility Model Content

[0004] The purpose of this invention is to provide a dry electrode film removal tooling to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dry electrode membrane removal fixture, comprising a frame and a dry electrode, wherein the frame is rotatably mounted with a first guide roller, a second guide roller, a third guide roller, a fourth guide roller, a fifth guide roller, and a sixth guide roller; an optical axis is mounted on the frame on one side of the first guide roller and on one side of the second guide roller; multiple movable seats are adjustablely mounted on the optical axis, each movable seat is mounted with a clamping plate, the clamping plate holding a scraper blade; a suction pipe is mounted on the frame above and below the first guide roller, the suction pipe being equipped with multiple corrugated suction tubes; a first CCD and a second CCD are mounted on both sides of the membrane on the frame.

[0006] Preferably, a correction sensor is installed on the frame between the fifth guide roller and the sixth guide roller.

[0007] Preferably, the first guide roller, the second guide roller, the third guide roller, the fourth guide roller, the fifth guide roller, and the sixth guide roller have the same structure, with the first guide roller and the fourth guide roller located below the film, and the second guide roller, the third guide roller, the fifth guide roller, and the sixth guide roller located above the film.

[0008] Preferably, the two optical axes are located on opposite sides of the membrane.

[0009] Compared with the prior art, the beneficial effects of this utility model are: by using a scraper, the original equipment speed of the lamination process is relatively low, and then by using CCD detection, the scraper is accurately positioned and the electrode film in the uncoated area is continuously removed, and then sucked away through the negative pressure suction port. The CCD not only controls and adjusts the position of the scraper, but also can detect whether there is electrode film residue in the blank area, which greatly improves production efficiency and product quality and safety; this application is mainly used for large and wide films with many blank areas. Attached Figure Description

[0010] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0011] Figure 1 This is the front view of this utility model;

[0012] Figure 2 This is a side view of the present invention.

[0013] In the diagram: 1. Dry electrode; 2. Movable seat; 3. Clamping plate; 4. Scraper blade; 5. Corrugated suction pipe; 6. Frame; 7. Dust suction pipe; 8. First guide roller; 9. Optical axis; 10. Second guide roller; 11. Third guide roller; 12. First CCD; 13. Second CCD; 14. Correction sensor; 15. Fourth guide roller; 16. Fifth guide roller; 17. Sixth guide roller. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0015] Please see Figure 1-2 In this embodiment of the present invention, a dry electrode film removal fixture includes a frame 6 and a dry electrode 1. The frame 6 is rotatably mounted with a first guide roller 8, a second guide roller 10, a third guide roller 11, a fourth guide roller 15, a fifth guide roller 16, and a sixth guide roller 17. Optical axes 9 are mounted on both sides of the frame 6, one on the side of the first guide roller 8 and the other on the side of the second guide roller 10. The two optical axes 9 are located on both sides of the film. Multiple movable seats 2 are adjustablely mounted on the optical axes 9. Each movable seat 2 is equipped with a clamping plate 3, which holds a scraper blade 4. A dust suction pipe 7 is mounted on both the frame 6 above and below the first guide roller 8. The dust suction pipe 7 is equipped with multiple corrugated suction pipes 5. A first CCD 12 and a second CCD 13 are mounted on both sides of the film on the frame 6. A correction sensor 14 is mounted on the frame 6 between the fifth guide roller 16 and the sixth guide roller 17. The material (upper electrode film, intermediate dry-process zebra-coated foil, and lower electrode film) is laminated in three layers before being wound up. It then passes through a guide roller, a web-correcting sensor, a special scraper (various scraper materials available) to scrape the electrode film from the uncoated area on side A, and a suction tube to remove it. A first CCD detection is used to finely adjust the servo moving seat based on the quality of the output material (appearance, size), achieving closed-loop control. A special scraper (scraping material available) is used to scrape the electrode film from the uncoated area on side B, and a suction tube to remove it. A second CCD detection is used to finely adjust the servo moving seat based on the quality of the output material (appearance, size), resulting in a high-quality electrode with double-sided blanking after electrode film removal.

[0016] The first guide roller 8, the second guide roller 10, the third guide roller 11, the fourth guide roller 15, the fifth guide roller 16, and the sixth guide roller 17 have the same structure. The first guide roller 8 and the fourth guide roller 15 are located below the film, while the second guide roller 10, the third guide roller 11, the fifth guide roller 16, and the sixth guide roller 17 are located above the film.

[0017] The working principle of this utility model is as follows: (upper electrode film, intermediate dry-process zebra-coated foil, lower electrode film) After the three layers of material are laminated and before winding, they pass through a guide roller-----a correction sensor-----a special scraper scrapes the electrode film on the uncoated area of ​​side A (scraper material varies)-----a suction tube sucks it away-----first CCD detection, and the servo moving seat is slightly adjusted by detecting the quality of the output material (appearance, size) to achieve closed-loop control-----a special scraper scrapes the electrode film on the uncoated area of ​​side B (scraper material)-----a suction tube sucks it away-----second CCD detection, and the servo moving seat is slightly adjusted by detecting the quality of the output material (appearance, size)-----to obtain a high-quality electrode after double-sided blanking and electrode film removal.

[0018] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dry electrode film removal fixture, comprising a frame (6) and a dry electrode (1), characterized in that: The frame (6) is rotatably mounted with a first guide roller (8), a second guide roller (10), a third guide roller (11), a fourth guide roller (15), a fifth guide roller (16), and a sixth guide roller (17). The frame (6) is mounted with an optical axis (9) on one side of the first guide roller (8) and on one side of the second guide roller (10). Multiple movable seats (2) are adjustablely mounted on the optical axis (9). Each movable seat (2) is mounted with a clamping plate (3). The clamping plate (3) holds a scraper blade (4). The frame (6) is mounted with a suction pipe (7) above and below the first guide roller (8). The suction pipe (7) is mounted with multiple corrugated suction pipes (5). The frame (6) is mounted with a first CCD (12) and a second CCD (13) on both sides of the membrane.

2. The dry electrode (1) film removal fixture according to claim 1, characterized in that: The frame (6) is equipped with a correction sensor (14) located between the fifth guide roller (16) and the sixth guide roller (17).

3. The dry electrode (1) film removal fixture according to claim 1, characterized in that: The first guide roller (8), the second guide roller (10), the third guide roller (11), the fourth guide roller (15), the fifth guide roller (16), and the sixth guide roller (17) have the same structure. The first guide roller (8) and the fourth guide roller (15) are located below the film, while the second guide roller (10), the third guide roller (11), the fifth guide roller (16), and the sixth guide roller (17) are located above the film.

4. The dry electrode (1) film removal fixture according to claim 1, characterized in that: The two optical axes (9) are located on both sides of the membrane.

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