Rubber coating mechanism for battery tabs

Abstract

The utility model discloses a rubber coating mechanism for battery tabs, which belongs to the field of battery production and comprises a bottom plate, a mounting frame fixedly connected onto the bottom plate, a connecting plate fixedly connected onto the top of the mounting frame, a pressing mechanism arranged on the connecting plate, a plurality of fixing plates fixedly connected onto the top of the bottom plate, and guide mechanisms arranged on the fixing plates. The guide mechanism comprises two oppositely-arranged mounting blocks, and one end of each mounting block is fixedly connected with a guide block. The device has the beneficial effects that a plurality of groups of pressing mechanisms, guide mechanisms and flattening mechanisms are arranged, when the tabs and the adhesive tape pass through the space between the two mounting blocks of each group, the adhesive tape can be folded in a double-sided manner through the guide blocks, and is flattened through the flattening mechanisms, so that the adhesive coating action of the battery tabs is realized, the folding and adhesive coating actions are accelerated, the processing efficiency is improved, and the production cost is reduced. And multiple groups of battery tabs can be simultaneously encapsulated, so that the occupied area of the device is reduced, and the processing efficiency is improved.

Description

A battery tab coating mechanism Technical Field

[0001] This utility model relates to the field of battery manufacturing, and in particular to a coating mechanism for battery tabs. Background Technology

[0002] To prevent short circuits in the battery tabs, the exposed parts of the tabs are coated with adhesive before welding.

[0003] A search revealed a Chinese patent publication number CN221947200U that discloses a device for coating battery tabs with adhesive tape. The device includes a coating platform for placing the electrode and adhesive tape, an electrode limiting component for horizontally limiting the electrode, a pressure roller assembly, and a drive assembly for uniformly moving and rolling the adhesive tape back and forth. The adhesive tape is located between the coating platform and the electrode. The adhesive tape extending to one side of the electrode is the first part, and the adhesive tape extending to the other side of the electrode is the second part. The coating platform has an air-blowing area that blows air onto the first and second parts sequentially or simultaneously. This device drives the pressure roller assembly to uniformly move and roll the blown adhesive tape, enabling the adhesive tape to gradually adhere to the electrode with high flatness and good adhesion. However, existing battery tab coating devices involve too many movements during coating, making it difficult to guarantee coating quality and affecting processing speed. Furthermore, they can only coat one set of tabs at a time, impacting production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a coating mechanism for battery tabs in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A battery tab coating mechanism includes a base plate, a mounting bracket fixedly connected to the base plate, a connecting plate fixedly connected to the top of the mounting bracket, a pressing mechanism on the connecting plate, several fixing plates fixedly connected to the top of the base plate, a guiding mechanism on the fixing plates, the guiding mechanism including two oppositely arranged mounting blocks, a guiding block fixedly connected to one end of the mounting blocks, an air blowing structure on the mounting blocks, a hydraulic cylinder fixedly connected to the connecting plate, a pressing plate fixedly connected to the output end of the hydraulic cylinder, several sets of pressing columns fixedly connected to the bottom of the pressing plate, a mounting plate fixedly connected to the pressing columns, and a flattening mechanism on the mounting plate.

[0007] Preferably, the air blowing structure includes several air blowing holes, which are located on opposite sides of the two mounting blocks. An air inlet is provided at the end of the mounting block away from the guide block, and the air blowing holes are connected to the air inlet.

[0008] Preferably, the top of the guide block is provided with a slope, and the opposite side of the guide block is provided with a rounded chamfer.

[0009] Preferably, the inclined surface is divided into two sections, with the end of the inclined surface away from the mounting block extending to a horizontal position at the top of the fixing plate, and the two sections of the inclined surface are configured to increase in angle from low to high.

[0010] Preferably, the flattening mechanism includes a cylinder, which is fixedly connected to the mounting plate. The cylinder output end is fixedly connected to a connecting seat, and two sets of flattening components are installed at the bottom of the connecting seat.

[0011] Preferably, the flattening assembly includes a connecting shaft, which is rotatably connected to a connecting seat. A flattening plate with a triangular cross-section is fixedly connected to the connecting shaft, and a torsion spring is provided between the connecting shaft and the connecting seat.

[0012] Preferably, a number of guide rods are fixedly connected to the top of the lower pressure plate, and connecting rods are slidably connected to the guide rods, which are fixedly connected to the mounting bracket.

[0013] The beneficial effects are as follows: multiple sets of pressing mechanisms, guiding mechanisms, and flattening mechanisms are set up. When the tab and tape pass between the two mounting blocks of each set, the guiding blocks can fold the tape on both sides, and the flattening mechanism can flatten it to realize the coating action of the battery tab. This speeds up the folding and coating action, improves processing efficiency, and can coat multiple sets of battery tabs at the same time, reducing the footprint of the device and improving processing efficiency.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 is a schematic diagram of the coating mechanism for a battery tab according to the present invention;

[0017] Figure 2 is a schematic diagram from another angle of the coating mechanism for a battery tab of the present invention;

[0018] Figure 3 is a schematic diagram showing the relative positions of the pressing mechanism, the guiding mechanism, and the flattening mechanism of the battery tab coating mechanism of this utility model.

[0019] Figure 4 is a schematic diagram of the flattening mechanism of the battery tab coating mechanism of this utility model;

[0020] Figure 5 is a cross-sectional view of the connecting shaft position of the coating mechanism for the battery tabs of this utility model;

[0021] Figure 6 is a schematic diagram of the guiding mechanism structure of the battery tab coating mechanism of this utility model.

[0022] The reference numerals in the attached drawings are explained as follows: 101, base plate; 102, mounting bracket; 103, connecting plate; 104, fixing plate; 105, pole lug; 106, tape; 201, hydraulic cylinder; 202, lower pressure plate; 203, lower pressure column; 204, mounting plate; 205, connecting rod; 206, guide rod; 301, mounting block; 302, guide block; 303, inclined surface; 304, rounded chamfer; 305, air blowing hole; 306, air inlet; 401, cylinder; 402, connecting seat; 403, connecting shaft; 404, pressure plate; 405, torsion spring. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] As shown in Figures 1-6, a battery tab encapsulation mechanism includes a base plate 101. A mounting bracket 102 is bolted to the base plate 101. A connecting plate 103 is bolted to the top of the mounting bracket 102. A pressing mechanism is provided on the connecting plate 103. Several fixing plates 104 are bolted to the top of the base plate 101. A guiding mechanism is provided on the fixing plates 104. The guiding mechanism includes two opposing mounting blocks 301. A space is provided between the two mounting blocks 301 for the tab 105 to... The tape 106 passes through a channel, and one end of the mounting block 301 is bolted to a guide block 302. The mounting block 301 is equipped with an air blowing structure. The pressing mechanism includes a hydraulic cylinder 201, which is bolted to a connecting plate 103. The output end of the hydraulic cylinder 201 is bolted to a pressing plate 202. Several sets of pressing columns 203 are bolted to the bottom of the pressing plate 202. The pressing columns 203 are bolted to a mounting plate 204, which is equipped with a flattening mechanism.

[0027] In this embodiment, the air blowing structure includes a plurality of air blowing holes 305. The air blowing holes 305 are disposed on opposite sides of two mounting blocks 301. An air inlet 306 is provided at the end of the mounting block 301 away from the guide block 302. An air blowing device is provided at the position of the air inlet 306, which is prior art and will not be described in detail. The air blowing holes 305 are connected to the air inlet 306. The airflow blown out of the air blowing holes 305 can further bend the tape 106 so that the tape 106 completely covers the tab 105.

[0028] In this embodiment, the top of the guide block 302 is provided with a slope 303, and the opposite side of the guide block 302 is provided with a rounded chamfer 304. The rounded chamfer 304 helps to stably bend the part of the tape 106 extending out of the tab 105, thereby improving the quality of the tape coating.

[0029] In this embodiment, the inclined surface 303 is divided into two sections. The end of the inclined surface 303 away from the mounting block 301 extends to the horizontal position at the top of the fixing plate 104. The two sections of the inclined surface 303 are configured to increase in angle from low to high. When the tab 105 moves from the guide block 302 towards the mounting block 301 with the tape 106, the inclined surface 303 can first lift the part of the tape 106 that extends out of the tab 105. As the tape 106 moves synchronously with the tab 105, the edge of the inclined surface 303 gradually bends the tape 106 until the tape 106 is in a U-shaped state.

[0030] In this embodiment, the flattening mechanism includes a cylinder 401, which is bolted to the mounting plate 204. The output end of the cylinder 401 is bolted to a connecting seat 402, and two sets of flattening components are mounted on the bottom of the connecting seat 402.

[0031] In this embodiment, the flattening assembly includes a connecting shaft 403, which is rotatably connected to a connecting seat 402. A flattening plate 404 with a triangular cross-section is bolted to the connecting shaft 403. A torsion spring 405 is provided between the connecting shaft 403 and the connecting seat 402. The torsion spring 405 is used to reset the flattening plate 404. In the initial state, one corner of the triangular cross-section of the flattening plate 404 is parallel to the side wall of the mounting block 301. As the cylinder 401 pushes the connecting seat 402 and the connecting shaft 403 down, the side of the flattening plate 404 parallel to the side wall of the mounting block 301 will lift up the tape 106. As the flattening plate 404 continues to descend, the long side of the flattening plate 404 flips and presses down towards the fixing plate 104, so that the parts of the tape 106 protruding from the tabs 105 on both sides are attached to the surface of the tabs 105.

[0032] In this embodiment, a number of guide rods 206 are bolted to the top of the lower pressure plate 202. A connecting rod 205 is slidably connected to the guide rod 206. The connecting rod 205 is bolted to the mounting bracket 102. The arrangement of the guide rods 206 and the connecting rod 205 helps to improve the stability of the movement of the lower pressure plate 202 and the lower pressure column 203.

[0033] Working principle: When in use, the device moves multiple sets of tabs 105 and conveyor belt 106 towards the mounting block 301 at the same conveying frequency. When the tabs 105, carrying the conveyor belt 106, move from the guide block 302 towards the mounting block 301, the inclined surface 303 first supports the portion of the conveyor belt 106 extending beyond the tabs 105. As the conveyor belt 106 and tabs 105 move synchronously, the edge of the inclined surface 303 gradually bends the conveyor belt 106 until it is in a U-shape. Then, the tabs 105 and conveyor belt 106 continue to move. When the U-shaped conveyor belt 106 reaches the air inlet 305, the air blowing device blows air into the air inlet 306. The airflow from the air inlet 305 bends the vertical portion of the conveyor belt 106. At this time, the hydraulic cylinder 201 is activated, pushing the lower pressure plate 202 and the lower pressure column 203. The cylinder descends, and the pressure column 203 presses down on both sides of the tab 105. At this time, the tab 105 and the tape 106 stop conveying. Then, the cylinder 401 is activated, and the cylinder 401 pushes the connecting seat 402 and the connecting shaft 403 to descend. The connecting shaft 403 pushes the pressing plate 404 to move towards the tape 106. The side of the pressing plate 404 parallel to the side wall of the mounting block 301 will further lift the tape 106, causing the tape 106 to bend towards the center of the tab 105. As the pressing plate 404 continues to descend, the long side of the pressing plate 404 flips and presses down towards the fixing plate 104, so that the parts of the tape 106 protruding from the tab 105 on both sides are attached to the surface of the tab 105, completing this coating operation. Then, the output ends of the cylinder 401 and the hydraulic cylinder 201 retract, and the tab 105 and the tape 106 continue to be conveyed. The above actions are repeated to perform the coating operation of the battery tab 105.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A battery tab coating mechanism, comprising a base plate (101), a mounting bracket (102) fixedly connected to the base plate (101), a connecting plate (103) fixedly connected to the top of the mounting bracket (102), and a pressing mechanism provided on the connecting plate (103), characterized in that: The top of the base plate (101) is fixedly connected to several fixed plates (104). The fixed plates (104) are provided with guide mechanisms. The guide mechanisms include two oppositely arranged mounting blocks (301). One end of the mounting block (301) is fixedly connected to a guide block (302). The mounting block (301) is provided with an air blowing structure. The pressing mechanism includes a hydraulic cylinder (201). The hydraulic cylinder (201) is fixedly connected to the connecting plate (103). The output end of the hydraulic cylinder (201) is fixedly connected to a pressing plate (202). The bottom of the pressing plate (202) is fixedly connected to several sets of pressing columns (203). The pressing columns (203) are fixedly connected to mounting plates (204). The mounting plates (204) are provided with a flattening mechanism.

2. The coating mechanism for a battery tab according to claim 1, characterized in that: The air blowing structure includes a plurality of air blowing holes (305), the air blowing holes (305) are disposed on one side opposite to the two mounting blocks (301), and an air inlet (306) is provided at one end of the mounting block (301) away from the guide block (302), and the air blowing holes (305) are connected to the air inlet (306).

3. The coating mechanism for a battery tab according to claim 1, characterized in that: The top of the guide block (302) is provided with a slope (303), and the opposite side of the guide block (302) is provided with a rounded chamfer (304).

4. The coating mechanism for a battery tab according to claim 3, characterized in that: The inclined surface (303) is divided into two sections. One end of the inclined surface (303) away from the mounting block (301) extends to the horizontal position at the top of the fixing plate (104). The two sections of the inclined surface (303) are configured to increase in angle from low to high.

5. The coating mechanism for a battery tab according to claim 1, characterized in that: The flattening mechanism includes a cylinder (401), which is fixedly connected to the mounting plate (204). The output end of the cylinder (401) is fixedly connected to a connecting seat (402), and two sets of flattening components are installed at the bottom of the connecting seat (402).

6. The coating mechanism for a battery tab according to claim 5, characterized in that: The flattening assembly includes a connecting shaft (403), which is rotatably connected to the connecting seat (402). A pressing plate (404) with a triangular cross section is fixedly connected to the connecting shaft (403), and a torsion spring (405) is provided between the connecting shaft (403) and the connecting seat (402).

7. The coating mechanism for a battery tab according to claim 1, characterized in that: The top of the lower pressure plate (202) is fixedly connected to several guide rods (206), and a connecting rod (205) is slidably connected to the guide rods (206). The connecting rod (205) is fixedly connected to the mounting bracket (102).

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