A lithium battery foil stripping and coating machine
By designing an automated lithium battery foil peeling and laminating machine, the separation and bonding of foil and film are automatically completed using an air shaft and a correction component. This solves the problems of low efficiency and easy scratching of manual film removal, and achieves efficient and non-destructive foil surface treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU SHENGYAO TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-09
AI Technical Summary
In existing technologies, the removal of film from lithium battery foil requires manual operation, which is inefficient and easily causes scratches on the foil surface.
Design a lithium battery foil peeling and laminating machine. The machine uses components such as unwinding air shaft, take-up air shaft, and first take-up air shaft to automatically complete the separation and lamination of foil and film. Combined with a correction component and tension sensor for real-time adjustment, it realizes automated peeling and laminating.
The foil removal process has been automated, improving efficiency, avoiding scratches caused by manual operation, and ensuring the surface quality of the foil.
Smart Images

Figure CN224336870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery foil processing technology, and in particular to a lithium battery foil peeling and coating machine. Background Technology
[0002] To protect lithium battery foil, a thin film is attached to the surface of the foil. If the film is not removed during the slitting process, the slitting accuracy will be reduced. Therefore, the film on the surface of the foil needs to be removed before slitting. After the slitting process is completed, the foil needs to be re-coated to protect it. However, in the existing technology, the film removal of the foil needs to be done manually, which results in low removal efficiency and easy scratches on the surface of the foil. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies where foil removal requires manual removal, and to propose a lithium battery foil peeling and coating machine.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] Design a lithium battery foil peeling and laminating machine, including two sets of base frames, and also including:
[0006] The film peeling assembly includes a first mounting frame and a second mounting frame mounted on the upper end of a set of base frames. The inner side of the first mounting frame is sequentially mounted from left to right with an unwinding air shaft, a take-up air shaft, and a tape-connecting platform. The inner side of the second mounting frame is mounted with a first take-up air shaft.
[0007] The coating assembly includes a third mounting frame and a fourth mounting frame mounted on the upper end of another set of base frames. The inner side of the third mounting frame is equipped with a sheet traction shaft, a coating material shaft, and a traction roller in sequence from left to right. The inner side of the fourth mounting frame is equipped with a tape receiving platform, a waste material slip shaft, and a second take-up air expansion shaft in sequence from left to right. The traction roller is used to press the sheet material fed by the sheet traction shaft and the film fed by the coating material shaft together. The waste material slip shaft is used to receive waste material after the sheet material is processed.
[0008] Preferably, the tape-connecting platform includes two sets of tape-connecting shafts, and a tape-connecting frame is provided between the two sets of tape-connecting shafts.
[0009] Preferably, it also includes a correction component, which includes a slide rail fixed to the upper end of the base frame, and an electric telescopic rod is driven between the base frame and the free end of the slide rail.
[0010] Preferably, the first mounting bracket is fixedly mounted on the free end of the slide rail, and a correction sensor is provided between the first mounting bracket and the second mounting bracket.
[0011] Preferably, the fourth mounting bracket is fixedly installed on the free end of the slide rail, and a correction sensor is provided between the third mounting bracket and the fourth mounting bracket.
[0012] Preferably, two sets of the correction sensors are arranged facing each other.
[0013] Preferably, a tension sensor is installed on one side of the input end of the first take-up air shaft.
[0014] Preferably, a tension sensor is installed on one side of the output end of the traction roller.
[0015] Preferably, an auxiliary shaft is also installed on the inner side of the third mounting bracket, which serves to guide the direction of travel.
[0016] The lithium battery foil peeling and laminating machine proposed in this utility model has the following advantages:
[0017] The unwinding air shaft, the take-up air shaft, and the first take-up air shaft are configured to hold the foil material and film material that have not been separated. Through the continuous traction of the take-up air shaft and the first take-up air shaft, the film material is wound into the take-up air shaft and the foil material is wound into the first take-up air shaft, so that the peeling operation can be completed by electrical equipment without the need for continuous manual peeling operation.
[0018] The sheet metal traction shaft, the film coating shaft, the traction roller, the waste material slip shaft, and the second winding air expansion shaft are configured to transport foil material components after slitting, and film coating material components. The traction rollers are used to bond the foil material components and film materials together, so that the surface of the foil material components is re-bonded to the film materials. Finally, the waste material slip shaft is used to wind up the excess part of the film materials, and the second winding air expansion shaft is used to wind up the finished assembly of the foil material components and film materials. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the film peeling assembly;
[0020] Figure 2 This is a side view of the film peeling assembly.
[0021] Figure 3 This is a cross-sectional view of the film peeling assembly.
[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the coated component;
[0023] Figure 5 This is a side view of the coated assembly.
[0024] Figure 6 This is a cross-sectional view of the coated component.
[0025] In the diagram: 1. Base frame; 2. First mounting frame; 3. Second mounting frame; 4. Slide rail; 5. Electric telescopic rod; 6. Third mounting frame; 7. Fourth mounting frame; 8. Take-up air shaft; 9. Unwind air shaft; 10. Belt connecting shaft; 11. Belt connecting frame; 12. First take-up air shaft; 13. Web alignment sensor; 14. Tension sensor; 15. Coated material shaft; 16. Sheet traction shaft; 17. Traction roller; 18. Auxiliary shaft; 19. Waste material slip shaft; 20. Second take-up air shaft; X1. Foil material component; X2. Film material component. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Example 1
[0028] Reference Figures 1-6 A lithium battery foil peeling and laminating machine includes two sets of base frames 1, and also includes:
[0029] Film peeling assembly, refer to Figures 1-3 The film peeling assembly includes a first mounting frame 2 and a second mounting frame 3 installed on the upper end of a set of base frames 1. The inner side of the first mounting frame 2 is sequentially equipped with an unwinding air shaft 9, a take-up air shaft 8, and a tape-connecting platform from left to right. The inner side of the second mounting frame 3 is equipped with a first take-up air shaft 12.
[0030] Coated components, refer to Figures 4-6 The coating assembly is used for re-coating the foil material X1 after processing. The coating assembly includes a third mounting frame 6 and a fourth mounting frame 7 installed on the upper end of another set of base frames 1. The inner side of the third mounting frame 6 is equipped with a sheet traction shaft 16, a coating material shaft 15, and a traction roller 17 in sequence from left to right. The inner side of the fourth mounting frame 7 is equipped with a tape receiving platform, a waste material slip shaft 19, and a second take-up air expansion shaft 20 in sequence from left to right. The traction roller 17 is used to press the sheet material sent out by the sheet traction shaft 16 and the film sent out by the coating material shaft 15 together. The waste material slip shaft 19 is used to receive waste material after sheet material processing.
[0031] Furthermore, refer to Figure 3 , Figure 6 The tape-connecting platform includes two sets of tape-connecting shafts 10, and a tape-connecting frame 11 is provided between the two sets of tape-connecting shafts 10.
[0032] Furthermore, refer to Figure 3 , Figure 6A tension sensor 14 is installed on one side of the input end of the first take-up air shaft 12; a tension sensor 14 is also installed on one side of the output end of the traction roller 17.
[0033] Furthermore, refer to Figure 6 An auxiliary shaft 18 is also installed on the inner side of the third mounting bracket 6. The auxiliary shaft 18 is used to guide the direction.
[0034] Working principle:
[0035] When performing the film peeling operation, refer to Figure 1 , Figure 2 , Figure 3 The foil material X1 with the film material X2 attached to its surface is placed in the unwinding air shaft 9, and high-pressure gas is supplied into the unwinding air shaft 9 for fixation. The ends of the film material X2 on the surface of the foil material X1 are separated, and the separated film material X2 is wound into the take-up air shaft 8. Then, the foil material X1 with the film material X2 removed is passed between the tape receiving shaft 10 and the tape receiving frame 11. Finally, the foil material X1 is wound up by the first take-up air shaft 12. At the same time, the position and orientation of the tension sensor 14 are adjusted according to the actual position of the foil material X1.
[0036] The take-up air shaft 8 and the first take-up air shaft 12 are equipped with traction motors. The take-up air shaft 8 and the first take-up air shaft 12 continuously rotate, so that the foil material X1 with the film material X2 attached to the upper surface of the unwind air shaft 9 is continuously conveyed. The film material X2 is wound by the take-up air shaft 8 and the foil material X1 is wound by the first take-up air shaft 12, so as to realize the separation of the film material X2 and the foil material X1. While the first take-up air shaft 12 is winding, the traction speed of the first take-up air shaft 12 is adjusted in real time according to the tension information detected by the tension sensor 14 to avoid the foil material X1 being overstretched and deformed.
[0037] When performing the lamination process, refer to... Figure 4 , Figure 5 , Figure 6 The film material X2 is placed in the coating material shaft 15, and the foil material X1 is fed in through the sheet material traction shaft 16, so that the film material X2 and the foil material X1 are fed into the traction roller 17 simultaneously, as shown in the figure. Figure 6A pressing structure is provided on one side of the traction roller 17. The pressing structure presses and bonds the film material X2 and the foil material X1 together. After the pressing and bonding of the film material X2 and the foil material X1 are completed, the combination of the film material X2 and the foil material X1 is guided through the auxiliary shaft 18 so that the combination of the film material X2 and the foil material X1 passes between the tape receiving shaft 10 and the tape receiving frame 11. Then, the part of the film material X2 and the foil material X1 that needs to be retained is sent to the second winding air expansion shaft 20 for winding, and the part of the film material X2 and the foil material X1 that is discarded is sent to the waste slip shaft 19 for winding and recycling. At the same time, the position and orientation of the tension sensor 14 are adjusted according to the actual position of the combination of the film material X2 and the foil material X1.
[0038] The traction roller 17, waste material slip shaft 19, and second take-up air shaft 20 are equipped with traction motors. The traction roller 17 rotates continuously to bond the foil material X1 and the film material X2. Since the foil material X1 has already been cut, the area of the film material X2 will be larger than that of the foil material X1. Therefore, a cutting blade is installed in the tape holder 11 to remove the excess film material X2. The excess film material X2 is collected by the waste material slip shaft 19. The traction compensation of the waste material slip shaft 19 is used to improve the traction effect of waste collection. The final combination of the finished foil material X1 and film material X2 is wound up by the second take-up air shaft 20. A tension sensor 14 is placed at the output end of the traction roller 17 to adjust the traction speed of the waste material slip shaft 19 and the second take-up air shaft 20 in real time to avoid excessive pulling of the foil material X1 and the film material X2.
[0039] Example 2
[0040] In Embodiment 1, a structure was proposed that separates and separately winds foil material X1 and film material X2, and combines foil material X1 and film material X2 while separately winding up waste and finished products. Tension sensor 14 is used to adjust the traction speed of the first winding air shaft 12, waste material slip shaft 19, and second winding air shaft 20 in real time. However, in actual use, not only will tension changes occur, but the foil material X1 and film material X2 will also shift. Therefore, referring to... Figure 2 , Figure 3 , Figure 5 , Figure 6 It also includes a correction component, which includes a slide rail 4 fixed to the upper end of the base frame 1, and an electric telescopic rod 5 is installed between the base frame 1 and the free end of the slide rail 4.
[0041] Furthermore, refer to Figure 2 , Figure 3The first mounting bracket 2 is fixedly installed on the free end of the slide rail 4, and a correction sensor 13 is provided between the first mounting bracket 2 and the second mounting bracket 3; refer to Figure 5 , Figure 6 The fourth mounting bracket 7 is fixedly installed on the free end of the slide rail 4, and a correction sensor 13 is provided between the third mounting bracket 6 and the fourth mounting bracket 7.
[0042] Furthermore, refer to Figure 1 , Figure 4 The correction sensor 13 has two sets arranged in opposite directions.
[0043] Working principle:
[0044] During the film peeling operation, when the correction sensor 13 located at the input end of the first take-up air shaft 12 detects a deviation in the foil material X1, the electric telescopic rod 5 is activated. The housing of the electric telescopic rod 5 is fixed to the base frame 1, and the telescopic joint of the electric telescopic rod 5 is fixed to the first mounting frame 2. The telescopic joint of the electric telescopic rod 5 extends and retracts, and the first mounting frame 2 slides along the slide rail 4 under the drive of the telescopic joint of the electric telescopic rod 5. At this time, the position of the foil material X1 can be adjusted to achieve the correction function.
[0045] During the lamination operation, when the correction sensor 13 located at the output end of the traction roller 17 detects a deviation in the combination of foil material X1 and film material X2, the electric telescopic rod 5 is activated. The housing of the electric telescopic rod 5 is fixed to the base frame 1, and the telescopic joint of the electric telescopic rod 5 is fixed to the fourth mounting frame 7. The telescopic joint of the electric telescopic rod 5 extends and retracts, and the fourth mounting frame 7 slides along the slide rail 4 under the drive of the telescopic joint of the electric telescopic rod 5. At this time, the position of the combination of foil material X1 and film material X2 can be adjusted to achieve the correction function.
[0046] Reference Figure 1 , Figure 4 A PLC control device is also installed on one side of the first mounting frame 2, the second mounting frame 3, the third mounting frame 6, and the fourth mounting frame 7. The PLC control device is used to adjust the electric telescopic rod 5, the film take-up air shaft 8, the first take-up air shaft 12, the traction roller 17, the waste material slip shaft 19, and the second take-up air shaft 20 according to the monitoring data of the correction sensor 13 and the tension sensor 14, so as to play the role of electrification control. Since the electrification control program is not an innovative part of this utility model and has mature existing technology, it will not be described in detail here.
[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A lithium battery foil peeling and laminating machine, comprising two sets of base frames (1), characterized in that: Also includes: The film peeling assembly includes a first mounting frame (2) and a second mounting frame (3) mounted on the upper end of a set of base frames (1). The inner side of the first mounting frame (2) is sequentially equipped with an unwinding air shaft (9), a take-up air shaft (8), and a tape-connecting platform from left to right. The inner side of the second mounting frame (3) is equipped with a first take-up air shaft (12). The coating assembly includes a third mounting frame (6) and a fourth mounting frame (7) mounted on the upper end of another set of base frames (1). The inner side of the third mounting frame (6) is equipped with a sheet traction shaft (16), a coating material shaft (15), and a traction roller (17) in sequence from left to right. The inner side of the fourth mounting frame (7) is equipped with a tape receiving platform, a waste material slip shaft (19), and a second take-up air expansion shaft (20) in sequence from left to right. The traction roller (17) is used to press the sheet material sent out by the sheet traction shaft (16) and the film sent out by the coating material shaft (15) together. The waste material slip shaft (19) is used to receive waste material after the sheet material is processed.
2. The lithium battery foil peeling and coating machine according to claim 1, characterized in that: The tape-connecting platform includes two sets of tape-connecting shafts (10), and a tape-connecting frame (11) is provided between the two sets of tape-connecting shafts (10).
3. A lithium battery foil peeling and coating machine according to claim 1, characterized in that: It also includes a correction component, which includes a slide rail (4) fixed to the upper end of the base frame (1), and an electric telescopic rod (5) is installed between the base frame (1) and the free end of the slide rail (4).
4. A lithium battery foil peeling and coating machine according to claim 3, characterized in that: The first mounting bracket (2) is fixedly installed on the free end of the slide rail (4), and a correction sensor (13) is provided between the first mounting bracket (2) and the second mounting bracket (3).
5. A lithium battery foil peeling and coating machine according to claim 3, characterized in that: The fourth mounting bracket (7) is fixedly installed on the free end of the slide rail (4), and a correction sensor (13) is provided between the third mounting bracket (6) and the fourth mounting bracket (7).
6. A lithium battery foil peeling and coating machine according to any one of claims 4 or 5, characterized in that: The correction sensor (13) is arranged in two sets facing each other.
7. A lithium battery foil peeling and coating machine according to claim 1, characterized in that: A tension sensor (14) is installed on one side of the input end of the first take-up air shaft (12).
8. A lithium battery foil peeling and coating machine according to claim 1, characterized in that: A tension sensor (14) is installed on one side of the output end of the traction roller (17).
9. A lithium battery foil peeling and coating machine according to claim 1, characterized in that: An auxiliary shaft (18) is also installed on the inner side of the third mounting bracket (6). The auxiliary shaft (18) is used to guide the direction.