Film punching mechanism

Abstract

The utility model discloses a film punching mechanism which comprises a supporting frame, a U-shaped frame is fixedly installed on the upper surface of the supporting frame, two sets of feeding mechanisms are rotatably installed in the U-shaped frame, the two sets of feeding mechanisms are vertically flush in the U-shaped frame, a containing opening is fixedly installed at one end of the U-shaped frame, and the containing opening is attached to the upper end of the outer surface of the feeding mechanism on the lower layer. And a jacking opening is formed in one end of the U-shaped frame, two sets of connecting blocks are fixedly installed at one end of the U-shaped frame, and an impressing mechanism is rotationally installed between the two sets of connecting blocks and penetrates through the jacking opening to rotate between the two sets of feeding mechanisms. Through the design of the feeding mechanism and the imprinting mechanism, the functions of conveying, film covering, traction, rolling and the like are integrated, continuous treatment of lithium batteries is achieved, the pause time of a production line is effectively shortened, the production efficiency is improved, the conveying and film covering processes are completed through an automatic device, intervention of manual operation is reduced, and the production efficiency is improved. And the influence of human factors on the product quality is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, specifically to a film stamping mechanism. Background Technology

[0002] In a lithium-ion battery structure, positive and negative electrodes exist at both ends of the battery. The positive electrode is connected to the positive terminal of the battery, and the negative electrode is connected to the negative terminal. This connection allows the battery to generate current between the positive and negative electrodes, thus providing power. The positive electrode is typically made of aluminum foil coated with a positive active material (such as cobalt oxide or nickel oxide). The negative electrode is typically made of copper foil coated with a negative active material (such as graphite). These active materials can chemically react with lithium ions, releasing or absorbing lithium ions during charging and discharging, thereby enabling the battery to charge and discharge. A film-forming machine is a special film-forming device used in the lithium-ion battery manufacturing process. The main function of the lithium-ion battery film-forming mechanism is to apply a thin film layer to the positive and negative electrodes during battery manufacturing.

[0003] For example, the national authorized patent announcement number CN212764782U discloses an automatic punching machine for lithium battery processing, including a worktable. The top of the worktable has a groove, and a first sliding groove is fixedly provided on one side of the groove. A collection groove is fixedly provided at one end of the first sliding groove. A motor is fixedly provided on the top of the worktable near the groove. A turntable is fixedly provided at the output end of the motor. A connecting rod is rotatably provided at one end of one side of the turntable, and a positioning shaft is rotatably provided at one end of one side of the connecting rod. This utility model of an automatic punching machine for lithium battery processing uses a motor to drive the connecting rod eccentrically connected to the turntable to drive the positioning shaft to rotate. The positioning shaft drives the push plate to slide forward, so that the lithium battery slides from the top of the worktable through the first sliding groove into the collection groove. Therefore, after punching, the lithium battery falls neatly into the collection groove in the same direction. Placing them in the same direction not only reduces repetitive work in the later stages, but also avoids the lithium battery forming a circuit and causing damage.

[0004] However, the aforementioned automatic lithium battery punching machine cannot automatically supply lithium batteries to achieve continuous punching operations during the lithium battery punching process. It requires manual placement of the lithium batteries on the worktable, and then the movement of the turntable, connecting rod, and positioning shaft to push the lithium batteries into the collection tank. This requires manual operation to continuously supply lithium batteries, which limits the continuity and efficiency of the punching operation. Utility Model Content

[0005] The purpose of this invention is to provide a film-forming mechanism to solve the problem mentioned in the background art of not having an automatic lithium battery supply to achieve continuous film-forming during the lithium battery film-forming process.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A stamping mechanism includes: a support frame, a U-shaped frame fixedly mounted on the upper surface of the support frame, two sets of feeding mechanisms rotatably mounted inside the U-shaped frame, the two sets of feeding mechanisms being flush vertically within the U-shaped frame, a placement opening fixedly mounted at one end of the U-shaped frame, the placement opening fitting against the upper outer surface of the lower feeding mechanism, a top pressing opening at one end of the U-shaped frame, two sets of connecting blocks fixedly mounted at one end of the U-shaped frame, an imprinting mechanism rotatably mounted between the two sets of connecting blocks, the imprinting mechanism passing through the top pressing opening and rotating between the two sets of feeding mechanisms.

[0008] Preferably, a centering push plate is fixedly installed on both sides of the U-shaped frame. The centering push plate is located between the two sets of feeding mechanisms, so that the feeding mechanism can push the lithium battery to the center of the feeding mechanism through the sliding push of the centering push plate during the feeding process.

[0009] Preferably, the feeding mechanism includes four sets of transmission columns, each pair of transmission columns is rotatably installed at the upper and lower ends of the U-shaped frame, and the outer surfaces of the two sets of transmission columns at the upper and lower ends are fitted with conveyor belts. Support rods are fixedly installed between the conveyor belts, and the spacing between each pair of support rods is sufficient to support the lithium battery.

[0010] The two sets of conveyor belts at the upper and lower ends can clamp the lithium battery inside for transport via support rods.

[0011] Preferably, a first motor is fixedly installed at one end of the U-shaped frame, and the output shaft of the first motor passes through the U-shaped frame and is fixedly connected to the transmission column of the lower layer.

[0012] Preferably, gears are fixedly installed at one end of the transmission columns located in the upper and lower layers, and the two sets of gears mesh with each other, thereby enabling the two sets of transmission columns in the upper and lower layers to rotate synchronously relative to each other.

[0013] Preferably, the imprinting mechanism includes a rotating rod rotatably mounted between two sets of connecting blocks. A roller is fixedly mounted on the outer surface of the rotating rod. A release tray and a take-up tray are rotatably mounted on one end of the U-shaped frame. A thin film layer is fitted on the outer surface of the release tray. The thin film layer on the outer surface of the release tray passes through one end of the roller and wraps around the outer surface of the take-up tray, so that the two ends of the lithium battery can be clamped and contacted with the end of the film passing through the outer surfaces of the two sets of rollers during the conveying process, thereby realizing the imprinting of the film. Furthermore, the tight bonding between the film and the electrode can be increased by setting embossing on the outer surface of the roller.

[0014] Preferably, the lower surface of the take-up reel is fixedly connected to the output shaft of the second motor, and the second motor is fixedly installed at one end of the U-shaped frame, so that the take-up reel can take up the imprinted film through the second motor.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the design of the U-shaped frame, placement port, pusher plate, feeding mechanism, and imprinting mechanism, when covering the positive and negative electrode sheets of lithium batteries with a thin film, the operator can pour the lithium battery into the placement port, which is located above the lower feeding mechanism. The feeding mechanism then horizontally transports the lithium battery into the U-shaped frame, where it is clamped by the upper feeding mechanism. During the transport process, the upper and lower feeding mechanisms push the clamped lithium battery to the center of the feeding mechanism via the sliding pusher plate. The lithium battery, once pushed to the center, moves from the center of the imprinting mechanism. As the lithium battery moves past the center of the imprinting mechanism, the positive and negative electrode plates of the lithium battery are pushed by the feeding mechanism and pressed onto the film on the outer surface of the imprinting mechanism. This allows the imprinting mechanism to accurately imprint the film onto the positive and negative electrode plates of the lithium battery. With continuous feeding, the imprinting operation of the lithium battery can be carried out without interruption. Moreover, the imprinting process is realized during the feeding process. Compared with the traditional single processing step, this method of simultaneous feeding and imprinting can greatly improve production efficiency, reduce production line downtime, and allow workers to simply pour the lithium battery into the placement port, and the entire process will be automatically fed and imprinted without the need for additional complex operations and adjustments.

[0017] 2. The design, including a first motor, drive column, support rod, conveyor belt, gears, rollers, release tray, and rewind tray, allows for the conveying of lithium batteries by tilting them into the placement opening. The first motor drives the lower drive column to power the conveyor belt, while the drive column at the other end of the conveyor belt drives the gears in the upper layer, causing the upper drive column to rotate. This, in turn, causes the upper drive column to rotate relative to the conveyor belt, clamping the lithium batteries between the support rods of the upper and lower conveyor belts. During the conveying process, the upper and lower support rods push the clamped lithium batteries to the center of the support rods via a sliding pusher plate. As the lithium batteries are pushed to the center, they pass through the center of two sets of rollers. Simultaneously, the lithium battery, pushed by the conveyor belt, has its positive and negative electrode plates pressed against the film on the outer surface of two sets of rollers and moved over them. This ensures accurate film coverage on the positive and negative electrode plates, improving product quality and consistency. The rollers, moved by the pressure of the lithium battery, rotate, causing the film on the outer surface to be pulled and released by the release tray, releasing a new section of film. This achieves automatic film covering of the positive and negative electrode plates of the lithium battery. The rewind tray, driven by a second motor, rotates to rewind the imprinted film. By integrating functions such as conveying, laminating, pulling, and rewinding, continuous processing of lithium batteries is achieved, effectively reducing production line downtime and improving production efficiency. The automated conveying and laminating process reduces manual intervention, minimizes the impact of human factors on product quality, and improves production stability and reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the punching mechanism of this utility model;

[0019] Figure 2 This is a schematic diagram of the push plate and top pressure port of this utility model;

[0020] Figure 3 This is a schematic diagram of the feeding mechanism and the imprinting mechanism of this utility model.

[0021] In the diagram: 1. Support frame; 101. U-shaped frame; 102. Placement opening; 103. Push plate; 104. Top pressing opening; 105. Connecting block; 2. Feeding mechanism; 201. Transmission column; 202. Support rod; 203. Conveyor belt; 204. First motor; 205. Gear; 3. Imprinting mechanism; 301. Rotating rod; 302. Roller; 303. Release plate; 304. Rewind plate; 305. Second motor. Detailed Implementation

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1-2 As shown, this embodiment provides a stamping mechanism, including: a support frame 1, a U-shaped frame 101 fixedly installed on the upper surface of the support frame 1, two sets of feeding mechanisms 2 rotatably installed inside the U-shaped frame 101, the two sets of feeding mechanisms 2 being flush with each other inside the U-shaped frame 101, a placement opening 102 fixedly installed at one end of the U-shaped frame 101, the placement opening 102 being attached to the upper surface of the outer surface of the lower feeding mechanism 2, a top pressing opening 104 opened at one end of the U-shaped frame 101, two sets of connecting blocks 105 fixedly installed at one end of the U-shaped frame 101, an imprinting mechanism 3 rotatably installed between the two sets of connecting blocks 105, the imprinting mechanism 3 passing through the top pressing opening 104 and rotating between the two sets of feeding mechanisms 2.

[0024] A centering push plate 103 is fixedly installed on both sides of the inner side of the U-shaped frame 101. The centering push plate 103 is located between the two sets of feeding mechanisms 2, so that the feeding mechanism 2 can push the lithium battery to the center of the feeding mechanism 2 through the sliding push of the centering push plate 103 during the process of feeding the lithium battery.

[0025] Through the design of the U-shaped frame 101, placement port 102, push plate 103, feeding mechanism 2, and imprinting mechanism 3, when covering the positive and negative electrode sheets of the lithium battery with a thin film, the operator can pour the lithium battery into the placement port 102, which is located above the lower feeding mechanism 2. The lithium battery in the placement port 102 is then horizontally conveyed into the U-shaped frame 101 by the transmission of the feeding mechanism 2. During this conveying process, the lithium battery is also clamped between the upper feeding mechanism 2. During the conveying of the clamped lithium battery by the upper and lower feeding mechanisms 2, the central push plate 103 slides and pushes the lithium battery to the center of the feeding mechanism 2. Thus, the lithium battery pushed to the center is conveyed from... As the imprinting mechanism 3 moves past its center, the lithium battery, through the pushing action of the feeding mechanism 2, presses its positive and negative electrode plates against the film on the outer surface of the imprinting mechanism 3. This allows the imprinting mechanism 3 to precisely imprint the film onto the positive and negative electrode plates of the lithium battery. With continuous feeding, the imprinting process on the lithium battery can be performed without interruption. The imprinting process is carried out during the feeding process. Compared to the traditional single processing step, this method of simultaneous feeding and imprinting can greatly improve production efficiency, reduce production line downtime, and allow workers to simply pour the lithium battery into the placement port 102. The entire process will then be automatically fed and imprinted without the need for additional complex operations and adjustments.

[0026] like Figure 3 As shown, the feeding mechanism 2 includes four sets of transmission columns 201. Each pair of transmission columns 201 is rotatably installed at the upper and lower ends of the U-shaped frame 101. The outer surfaces of the two sets of transmission columns 201 at the upper and lower ends are fitted with conveyor belts 203. Support rods 202 are fixedly installed between the conveyor belts 203. The spacing between each pair of support rods 202 is sufficient to support the lithium battery.

[0027] Among them, the two sets of conveyor belts 203 at the upper and lower ends can clamp the lithium battery inside for transportation via the support rod 202.

[0028] A first motor 204 is fixedly installed at one end of the U-shaped frame 101. The output shaft of the first motor 204 passes through the U-shaped frame 101 and is fixedly connected to the transmission column 201 of the lower layer.

[0029] Gears 205 are fixedly installed at one end of the transmission column 201 located in the upper and lower layers. The two sets of gears 205 mesh with each other, so that the two sets of transmission columns 201 in the upper and lower layers can rotate synchronously relative to each other.

[0030] The embossing mechanism 3 includes a rotating rod 301, which is rotatably mounted between two sets of connecting blocks 105. A roller 302 is fixedly mounted on the outer surface of the rotating rod 301. A release tray 303 and a take-up tray 304 are rotatably mounted on one end of the U-shaped frame 101. A thin film layer is fitted on the outer surface of the release tray 303. The thin film layer on the outer surface of the release tray 303 passes through one end of the roller 302 and wraps around the outer surface of the take-up tray 304, so that the two ends of the lithium battery can be clamped and contacted with the end of the film passing through the outer surface of the two sets of rollers 302 during the conveying process, thereby realizing the embossing of the film. Furthermore, the tight bonding between the film and the electrode can be increased by setting embossing on the outer surface of the roller 302.

[0031] The lower surface of the take-up reel 304 is fixedly connected to the output shaft of the second motor 305. The second motor 305 is fixedly installed at one end of the U-shaped frame 101, so that the take-up reel 304 can take up the printed film through the second motor 305.

[0032] Through the design of the first motor 204, transmission column 201, support rod 202, conveyor belt 203, gear 205, roller 302, release tray 303, and take-up tray 304, when the lithium battery is tilted into the placement port 102 for conveying, the first motor 204 is started to drive the lower transmission column 201 to drive the conveyor belt 203 for transmission. The transmission column 201 at the other end of the conveyor belt 203 will drive the gear 205 to mesh and drive the upper gear 205 to drive the upper transmission column 203. The rotating column 201 causes the upper transmission column 201 to drive the conveyor belt 203 to rotate relative to each other. This clamps the lithium battery between the support rods 202 of the upper and lower conveyor belts 203. During the transport of the clamped lithium battery, the central pusher plate 103 slides and pushes the lithium battery to the center of the support rod 202. As the lithium battery is pushed to the center, it is then conveyed through the two sets of rollers 302. As the lithium battery moves past the center of the two sets of rollers 302, the positive and negative electrode sheets of the lithium battery are pressed against the film on the outer surface of the two sets of rollers 302 by the pushing action of the conveyor belt 203. This ensures that the film is accurately positioned on the positive and negative electrode sheets, improving product quality and consistency. The movement of the rollers 302 by the pressure of the lithium battery causes the rollers 302 to rotate, which in turn causes the film traction release tray 303 to release a new section of film. This achieves automatic film covering of the positive and negative electrode sheets of the lithium battery. The take-up tray 304 is driven to rotate by the second motor 305 to rewind the imprinted film. By integrating functions such as conveying, coating, pulling, and rewinding, continuous processing of lithium batteries is achieved, effectively reducing production line downtime and improving production efficiency. The automated conveying and coating process reduces manual intervention, minimizes the impact of human factors on product quality, and improves production stability and reliability.

[0033] Based on the above technical solution, the working steps of this solution are summarized as follows: When covering the positive and negative electrode plates of the lithium battery with a thin film, the worker can pour the lithium battery into the placement port 102, which is located on the outer surface of the lower conveyor belt 203. Then, by starting the first motor 204, the lower drive column 201 drives the conveyor belt 203. The drive column 201 at the other end of the conveyor belt 203 drives the gear 205 to mesh with the upper gear 205, causing the upper drive column 201 to rotate. This allows the upper drive column 201 to rotate the conveyor belt 203 relative to each other, thus clamping the lithium battery between the support rods 202 of the upper and lower conveyor belts 203. The upper and lower support rods 202 then transport the clamped lithium battery... During the process, the lithium battery is pushed to the center of the support rod 202 by the sliding push plate 103. As the lithium battery is pushed to the center, it moves past the center of the two sets of rollers 302. As the lithium battery moves past the center of the two sets of rollers 302, the positive and negative electrode plates of the lithium battery are pressed against the film on the outer surface of the two sets of rollers 302 by the pushing action of the conveyor belt 203. The rollers 302 rotate due to the pressure and movement of the lithium battery. This causes the rollers 302 to pull the film on the outer surface of the film loosening tray 303 to loosen a new piece of film, thus realizing the automatic covering of the positive and negative electrode plates of the lithium battery with film. The winding tray 304 is driven to rotate by the second motor 305 to wind up the imprinted film.

[0034] In summary, this film-making mechanism integrates functions such as conveying, coating, pulling, and winding, enabling continuous processing of lithium batteries. It effectively reduces production line downtime, improves production efficiency, and completes the conveying and coating process through automated devices, reducing manual intervention, minimizing the impact of human factors on product quality, and improving production stability and reliability.

[0035] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A film punching mechanism, characterized in that, include: A support frame (1) is provided, on the upper surface of which a U-shaped frame (101) is fixedly installed. Two sets of feeding mechanisms (2) are rotatably installed inside the U-shaped frame (101). The two sets of feeding mechanisms (2) are aligned vertically inside the U-shaped frame (101). A placement opening (102) is fixedly installed at one end of the U-shaped frame (101). The placement opening (102) is attached to the upper surface of the lower feeding mechanism (2). A top pressing opening (104) is provided at one end of the U-shaped frame (101). Two sets of connecting blocks (105) are fixedly installed at one end of the U-shaped frame (101). An imprinting mechanism (3) is rotatably installed between the two sets of connecting blocks (105). The imprinting mechanism (3) passes through the top pressing opening (104) and rotates between the two sets of feeding mechanisms (2).

2. The punching mechanism according to claim 1, characterized in that: A centering push plate (103) is fixedly installed on both sides of the U-shaped frame (101). The centering push plate (103) is located between the two sets of feeding mechanisms (2), so that the feeding mechanism (2) can push the lithium battery to the center of the feeding mechanism (2) through the sliding push of the centering push plate (103) during the process of feeding the lithium battery.

3. The punching mechanism according to claim 1, characterized in that: The feeding mechanism (2) includes four sets of transmission columns (201). Each pair of transmission columns (201) is rotatably installed at the upper and lower ends of the U-shaped frame (101). The outer surfaces of the two sets of transmission columns (201) at the upper and lower ends are fitted with conveyor belts (203). A support rod (202) is fixedly installed between the conveyor belts (203). The spacing between each pair of support rods (202) is sufficient to support the lithium battery. The two sets of conveyor belts (203) located at the upper and lower ends can clamp the lithium battery inside for transport via the support rod (202).

4. A punching mechanism according to claim 3, characterized in that: A first motor (204) is fixedly installed at one end of the U-shaped frame (101), and the output shaft of the first motor (204) passes through the U-shaped frame (101) and is fixedly connected to the transmission column (201) of the lower layer.

5. A punching mechanism according to claim 3, characterized in that: Gears (205) are fixedly installed at one end of the transmission column (201) located in the upper and lower layers. The two sets of gears (205) mesh with each other, thereby enabling the two sets of transmission columns (201) in the upper and lower layers to rotate synchronously relative to each other.

6. A punching mechanism according to claim 1, characterized in that: The imprinting mechanism (3) includes a rotating rod (301), which is rotatably installed between two sets of connecting blocks (105). A roller (302) is fixedly installed on the outer surface of the rotating rod (301). A release tray (303) and a take-up tray (304) are rotatably installed on one end of the U-shaped frame (101). A thin film layer is fitted on the outer surface of the release tray (303). The thin film layer on the outer surface of the release tray (303) passes through one end of the roller (302) and wraps around the outer surface of the take-up tray (304), so that the two ends of the lithium battery can be clamped and contacted at one end of the thin film passing through the outer surface of the two sets of rollers (302) during the conveying process, thereby realizing the imprinting of the film. Furthermore, the film can be tightly bonded to the electrode by setting embossing on the outer surface of the roller (302).

7. A punching mechanism according to claim 6, characterized in that: The lower surface of the take-up reel (304) is fixedly connected to the output shaft of the second motor (305). The second motor (305) is fixedly installed at one end of the U-shaped frame (101), so that the take-up reel (304) can take up the imprinted film through the second motor (305).

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