A coating auxiliary device for a composite current collector

Abstract

This utility model belongs to the field of current collector technology, and in particular to an auxiliary device for coating composite current collectors. It includes an auxiliary frame, with a first positioning frame fixedly installed on one side of the top of the auxiliary frame. An unwinding roller is rotatably connected to the inner wall of the first positioning frame, and a composite current collector body is disposed on the surface of the unwinding roller. A second positioning frame is fixedly installed on the other side of the top of the auxiliary frame. After activation, a small electric push rod drives a pressure roller to press down. The pressure roller presses down the composite current collector body through extrusion force. During the pressing process, the composite current collector body gradually tightens and straightens. The pressure roller presses the pressed composite current collector body against the surface of a fixed cylinder. The cooperation between the pressure roller and the fixed cylinder keeps the composite current collector body straight during the coating process, preventing tilting and ensuring the coating quality and effect of the composite current collector.

Description

Technical Field

[0001] This utility model belongs to the field of current collector technology, specifically relating to a coating auxiliary device for a composite current collector. Background Technology

[0002] A current collector, as the name suggests, refers to a structure or component that collects current. In lithium-ion batteries, it mainly refers to metal foils, such as copper foil and aluminum foil. More broadly, it can also include tabs. Its main function is to collect the current generated by the battery's active materials to form a larger current output. Therefore, the current collector should have sufficient contact with the active materials, and its internal resistance should be as low as possible. During the coating process of composite current collectors, auxiliary devices are needed to assist in the coating process. However, current auxiliary devices for composite current collectors often only guide the current collector, lacking a straightening function during coating. This can easily lead to tilting of the composite current collector during coating, affecting the coating quality and reducing the coating effect. Therefore, an auxiliary device for coating composite current collectors is needed. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a coating auxiliary device for composite current collectors. This solves the problem that current auxiliary devices for composite current collectors often only guide the composite current collectors and lack the function of straightening them during coating. This can easily lead to tilting of the composite current collectors during the coating process, affecting the coating quality and reducing the coating effect.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coating auxiliary device for a composite current collector, comprising an auxiliary frame, a first positioning frame fixedly installed on one side of the top of the auxiliary frame, an unwinding roller rotatably connected to the inner wall of the first positioning frame, a composite current collector body disposed on the surface of the unwinding roller, a second positioning frame fixedly installed on the other side of the top of the auxiliary frame, a servo motor fixedly installed on one side of the second positioning frame, a take-up roller connected to the output end of the servo motor, a cleaning frame fixedly installed on the upper surface of the auxiliary frame, a motor fixedly installed on one side of the cleaning frame, a connecting rod connected to the output end of the motor, a cleaning brush fixedly installed on the surface of the connecting rod, a coating equipment body fixedly installed on the inner wall of the auxiliary frame, a support frame fixedly installed on the surface of the auxiliary frame, a fixed cylinder fixedly connected to the inner wall of the support frame, a small electric push rod fixedly installed on the surface of the support frame, a U-shaped connecting shell fixedly connected to one end of the small electric push rod, and a pressure roller rotatably connected to the inner wall of the U-shaped connecting shell.

[0005] Preferably, the surface of the auxiliary frame is rotatably connected to guide rollers, and the number of guide rollers is two.

[0006] Preferably, the surface of the fixing cylinder is provided with a protective sleeve.

[0007] Preferably, the cleaning brush is located inside the cleaning frame.

[0008] Preferably, there are two pressure rollers, and the pressure rollers are located directly above the fixed cylinder.

[0009] Preferably, an industrial vacuum cleaner is provided on one side of the auxiliary frame, the output end of the industrial vacuum cleaner is connected to a suction pipe, and a suction head is fixedly connected to one end of the suction pipe.

[0010] Preferably, a support leg is fixedly installed at the bottom of the auxiliary frame, and the surface of the support leg is provided with an installation groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: After being started, the small electric push rod can drive the pressure roller to press down. The pressure roller can press down the composite current collector body through the squeezing force. During the pressing process, the composite current collector body will gradually tighten and straighten. The pressure roller presses the pressed composite current collector body against the surface of the fixed cylinder. The pressure roller and the fixed cylinder cooperate with each other to keep the composite current collector body in a straight state during the coating process, prevent the composite current collector from tilting during the coating process, ensure the coating quality of the composite current collector, and improve the coating effect. Attached Figure Description

[0012] 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: Figure 1 This is a first three-dimensional structural diagram of the present invention; Figure 2 This is a second three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the cleaning rack of this utility model; Figure 4 This is a three-dimensional structural diagram of the support frame of this utility model.

[0013] In the diagram: 1. Auxiliary frame; 2. First positioning frame; 3. Unwinding roller; 4. Composite current collector body; 5. Second positioning frame; 6. Servo motor; 7. Rewinding roller; 8. Guide roller; 9. Cleaning frame; 10. Motor; 11. Connecting rod; 12. Cleaning brush; 13. Coating equipment body; 14. Support frame; 15. Fixed cylinder; 16. Small electric push rod; 17. U-shaped connecting shell; 18. Pressure roller; 19. Support leg; 20. Industrial vacuum cleaner; 21. Vacuum hose; 22. Vacuum head. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This utility model provides the following technical solution: a coating auxiliary device for a composite current collector, comprising an auxiliary frame 1, a first positioning frame 2 fixedly installed on one side of the top of the auxiliary frame 1, an unwinding roller 3 rotatably connected to the inner wall of the first positioning frame 2, a composite current collector body 4 disposed on the surface of the unwinding roller 3, a second positioning frame 5 fixedly installed on the other side of the top of the auxiliary frame 1, a servo motor 6 fixedly installed on one side of the second positioning frame 5, a take-up roller 7 connected to the output end of the servo motor 6, and a cleaning frame 9 fixedly installed on the upper surface of the auxiliary frame 1 for cleaning. A motor 10 is fixedly installed on one side of the frame 9. A connecting rod 11 is connected to the output end of the motor 10. A cleaning brush 12 is fixedly installed on the surface of the connecting rod 11. A coating equipment body 13 is fixedly installed on the inner wall of the auxiliary frame 1. A support frame 14 is fixedly installed on the surface of the auxiliary frame 1. A fixed cylinder 15 is fixedly connected to the inner wall of the support frame 14. A small electric push rod 16 is fixedly installed on the surface of the support frame 1. A U-shaped connecting shell 17 is fixedly connected to one end of the small electric push rod 16. A pressure roller 18 is rotatably connected to the inner wall of the U-shaped connecting shell 17.

[0016] The operator places the composite current collector body 4, which needs to be coated, onto the surface of the unwinding roller 3. One end of the composite current collector body 4 is then passed through the cleaning frame 9, the coating equipment body 13, and the support frame 14, and wound onto the surface of the take-up roller 7. The servo motor 6 starts, driving the take-up roller 7 to rotate and rewind the composite current collector body 4. During the rewinding process, the composite current collector body 4 moves within the cleaning frame 9. After the motor 10 starts, it drives the connecting rod 11 and the cleaning brushes 12 to rotate. The two cleaning brushes 12 clean both sides of the composite current collector body 4, removing dust from its surface to prevent dust residue and ensure the coating quality. After cleaning, the composite current collector body 4 moves to the coating equipment body 13 via the support frame 14. After the coating equipment body 13 starts, it performs the coating process on the composite current collector body 4. Before coating, the composite current collector 4 moves within the cleaning frame 9. After activation, the small electric push rod 16 drives the pressure roller 18 to press down. The pressure roller 18 applies pressure to the composite current collector 4, gradually tightening it until it is straightened. The pressure roller 18 presses the pressed composite current collector 4 against the surface of the fixed cylinder 15, fixing it in place. The cooperation between the pressure roller 18 and the fixed cylinder 15 ensures the composite current collector 4 remains straight during coating, preventing tilting and guaranteeing coating quality and effect. The support leg 19 is fixed to the ground via the mounting groove, ensuring stability during use. All electrical components in this device are powered by an external power source.

[0017] In one aspect of this embodiment, the protective sleeve is used to protect the fixing cylinder 15 and prevent the fixing cylinder 15 from abrading the composite current collector body 4.

[0018] In one aspect of this embodiment, two guide rollers 8 on the surface of the auxiliary frame 1 are used to protect the composite current collector body 4 of the coating, preventing wear between the composite current collector body 4 and the auxiliary frame 1 during the coating process.

[0019] In one aspect of this embodiment, the cleaning brush 12 located inside the cleaning frame 9 can clean the composite current collector body 4 that moves through the cleaning frame 9 after it rotates, sweeping away the dust on the surface of the composite current collector body 4, preventing dust from remaining on the surface of the composite current collector body 4 and affecting the coating quality of the composite current collector body 4.

[0020] In one aspect of this embodiment, the pressure roller 18 located directly above the fixed cylinder 15 can press down on the coated composite current collector body 4 after pressing down, pressing the composite current collector body 4 down to contact the fixed cylinder 15, thereby keeping the composite current collector body 4 in a straight state during the coating process.

[0021] In one aspect of this embodiment, the support leg 19 can be fixed to the ground via the mounting slot, thereby installing and securing the device and ensuring its stability during use.

[0022] In one aspect of this embodiment, after the industrial vacuum cleaner 20 is started, it can vacuum the dust generated by the cleaning brush 12 cleaning the composite current collector body 4 through the vacuum pipe 21 and the vacuum head 22, thereby cleaning the dust generated by the composite current collector body 4 and preventing the dust from scattering.

[0023] 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 coating assisting device for composite current collectors, comprising an assisting frame (1), characterized in that: A first positioning frame (2) is fixedly installed on one side of the top of the auxiliary frame (1). An unwinding roller (3) is rotatably connected to the inner wall of the first positioning frame (2). A composite current collector body (4) is provided on the surface of the unwinding roller (3). A second positioning frame (5) is fixedly installed on the other side of the top of the auxiliary frame (1). A servo motor (6) is fixedly installed on one side of the second positioning frame (5). A take-up roller (7) is connected to the output end of the servo motor (6). A cleaning frame (9) is fixedly installed on the upper surface of the auxiliary frame (1). A motor (10) is fixedly installed on one side of the cleaning frame (9). (10) has a connecting rod (11) connected to its output end. A cleaning brush (12) is fixedly installed on the surface of the connecting rod (11). A coating equipment body (13) is fixedly installed on the inner wall of the auxiliary frame (1). A support frame (14) is fixedly installed on the surface of the auxiliary frame (1). A fixed cylinder (15) is fixedly connected to the inner wall of the support frame (14). A small electric push rod (16) is fixedly installed on the surface of the support frame (14). A U-shaped connecting shell (17) is fixedly connected to one end of the small electric push rod (16). A pressure roller (18) is rotatably connected to the inner wall of the U-shaped connecting shell (17).

2. The coating-assisted device for a composite current collector according to claim 1, wherein: The surface of the auxiliary frame (1) is rotatably connected to guide rollers (8), and there are two guide rollers (8).

3. The coating-assisted device for a composite current collector of claim 1, wherein: The surface of the fixed cylinder (15) is provided with a protective sleeve.

4. The coating-assisted device for a composite current collector of claim 1, wherein: The cleaning brush (12) is located inside the cleaning frame (9).

5. The coating-assisted device for a composite current collector of claim 1, wherein: The number of pressure rollers (18) is two, and the pressure rollers (18) are located directly above the fixed cylinder (15).

6. The coating-assisted device for a composite current collector of claim 1, wherein: An industrial vacuum cleaner (20) is provided on one side of the auxiliary frame (1). The output end of the industrial vacuum cleaner (20) is connected to a suction pipe (21), and a suction head (22) is fixedly connected to one end of the suction pipe (21).

7. The coating-assisted device for a composite current collector of claim 1, wherein: The bottom of the auxiliary frame (1) is fixedly installed with a support leg (19), and the surface of the support leg (19) is provided with an installation groove.

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