Tab rubber coating device
By designing a tab coating device, a fast and stable tab coating process was achieved, solving the problem of low efficiency in existing technologies and improving the efficiency of cell manufacturing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINYUAN QINGCAI TECH (BEIJING) CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, the tab coating process is inefficient, which affects the efficiency of cell fabrication.
A tab coating device was designed, including a glue feeding component, a worktable, and a glue cutting component. Through coordinated operation, it can achieve rapid glue feeding, positioning, and cutting actions, ensuring the consistency of position, force, and length of each coating.
It significantly improved the speed and quality stability of the coating process, and reduced the defect rate.
Smart Images

Figure CN224210552U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery processing technology, specifically to a device for coating electrode tabs. Background Technology
[0002] During the cell manufacturing process, after the tabs are welded, the welded parts need to be wrapped with insulating tape for protection. This is to prevent the welded parts from directly contacting the aluminum-plastic film during cell encapsulation, which could puncture the protective layer, cause a short circuit with the battery casing, and thus lead to battery fire or explosion.
[0003] However, in the existing technology, the electrode tab coating step is mostly done manually, which is inefficient and affects the cell manufacturing efficiency. Utility Model Content
[0004] In view of this, the present invention provides a tab coating device to solve the problem that manual coating is inefficient and affects the efficiency of cell manufacturing.
[0005] In a first aspect, this utility model provides an electrode tab coating device, comprising: a glue feeding assembly, the glue feeding assembly including a glue feeder and a first rotating shaft, the glue feeder being sleeved on the first rotating shaft, the glue feeder having an adsorption hole, the glue feeder being adapted to adsorb and pull adhesive tape; a worktable, the worktable being disposed below the glue feeder, the worktable including a main body and a lifting part, the lifting part being movably disposed within the main body, the main body being laterally movable, the lifting part having a fixing groove and a cutting groove, the cutting groove being disposed on the side of the fixing groove away from the glue feeder, the fixing groove being adapted to fix the electrode tab; a glue cutting assembly, the glue cutting assembly including a glue cutting blade, the glue cutting blade being movably disposed within the cutting groove; the electrode tab coating device includes an idle state and a coating state, in the idle state, the glue feeder and the lifting part are spaced apart, in the coating state, the glue feeder abuts against the electrode tab in the fixing groove.
[0006] Beneficial effects: The tab coating device, through the coordinated operation of the glue feeding component, worktable and glue cutting component, can achieve rapid glue feeding, positioning and cutting actions, which greatly improves the coating speed and the number of coatings per unit time. Through the precise mechanical structure, it can ensure that the position, force and length of each coating are highly consistent, which greatly improves the stability and consistency of coating quality and reduces the defect rate.
[0007] In one optional embodiment, the glue feeding assembly further includes a first stop block, which is sleeved on the first rotating shaft. Two first stops block are provided, which are respectively disposed on both sides of the glue feeder and abut against the glue feeder.
[0008] Beneficial effects: By setting the first stop, the displacement of the glue feeder along the first rotation axis is limited, preventing the position of the glue feeder from changing during the operation of the tab coating device, thus avoiding any impact on product quality.
[0009] In one optional embodiment, the adhesive feeding assembly further includes a tape reel and a second rotating shaft, the tape reel being sleeved on the second rotating shaft, the second rotating shaft rotating in the opposite direction to the first rotating shaft, and the tape reel being adapted to supply tape to the adhesive feeder.
[0010] In one optional embodiment, the adhesive feeding assembly further includes a second stop block, which is sleeved on the second rotating shaft. There are two second stops block, which are respectively disposed on both sides of the tape reel and abut against the tape reel.
[0011] Beneficial effect: By setting the second stop, the displacement of the tape reel along the second rotation axis is limited, preventing the position of the tape reel from changing during the operation of the tab coating device, thus avoiding any impact on product quality.
[0012] In one optional embodiment, the glue feeding assembly further includes a support rod rotatably disposed between the glue feeder and the tape reel, the support rod rotating in the same direction as the first rotating shaft, and the support rod being adapted to support the tape.
[0013] Beneficial effects: By setting up support rods, the tape feeder and tape reel are supported, preventing the tape from sagging and getting caught in other components; the rotation of the support rods guides the tape towards the tape feeder.
[0014] In one alternative embodiment, a plurality of support rods are provided, and the plurality of support rods are spaced apart.
[0015] Beneficial effect: By setting up several support rods, the stability of the tape is improved.
[0016] In one optional embodiment, the worktable further includes a transverse motor and a lifting motor, the drive end of the transverse motor being connected to the main body, and the drive end of the lifting motor being connected to the lifting part.
[0017] Beneficial effects: By setting up a transverse motor and a lifting motor, precise control of the main body and the lifting part can be achieved, with fast response speed, improving the work efficiency of the tab coating process.
[0018] In one alternative embodiment, the worktable further includes a guide rail, on which the main body is slidably disposed.
[0019] Beneficial effects: By setting guide rails, the movement of the main body can be constrained, limiting its movement or swaying in other unnecessary directions, thereby enhancing the stability of the entire system; when the main body or guide rails fail, the sliding connection between them facilitates disassembly and maintenance.
[0020] In one optional embodiment, the cutting assembly further includes a cutting cylinder, the drive end of which is connected to the cutting blade to extend or retract the cutting blade groove.
[0021] Beneficial effects: By adjusting the speed and pressure of the cylinder's air intake and exhaust, the speed, stroke, and position of the rubber cutting blade's extension and retraction can be precisely controlled, thus enabling high-precision rubber cutting.
[0022] In one optional embodiment, the tab coating device further includes a control component, which is electrically connected to the transverse motor, the lifting motor, the first rotating shaft, and the cutting cylinder.
[0023] Beneficial effects: The control component receives, analyzes, and controls each actuator to achieve integrated control of the tab coating device. Attached Figure Description
[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0025] Figure 1 This is a top view of the electrode tab coating device according to an embodiment of the present utility model;
[0026] Figure 2 This is a schematic diagram of the electrode tab coating device in an idle state according to an embodiment of the present invention;
[0027] Figure 3 This is a schematic diagram of the electrode tab coating device in the coating state according to an embodiment of the present invention.
[0028] Explanation of reference numerals in the attached figures:
[0029] 10. Glue feeding assembly; 11. Glue feeder; 111. Suction hole; 12. First rotating shaft; 13. First stop; 14. Glue reel; 15. Second rotating shaft; 16. Second stop; 17. Support rod; 20. Worktable; 21. Main body; 22. Lifting unit; 221. Fixing groove; 222. Cutting groove; 23. Horizontal movement motor; 24. Lifting motor; 25. Guide rail; 31. Glue cutter. Detailed Implementation
[0030] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] The following is combined Figures 1 to 3 The following describes embodiments of the present invention.
[0032] According to an embodiment of the present invention, a tab coating device is provided, comprising: a glue feeding assembly 10, a worktable 20, and a glue cutting assembly; the glue feeding assembly 10 includes a glue feeder 11 and a first rotating shaft 12, the glue feeder 11 is sleeved on the first rotating shaft 12, and the glue feeder 11 has an adsorption hole 111, which is suitable for adsorbing and pulling the tape; the worktable 20 is disposed below the glue feeder 11, and the worktable 20 includes a main body 21 and a lifting part 22, the lifting part 22 being vertically and vertically disposed on the main body 21. Inside, the main body 21 is movably arranged laterally, and the lifting part 22 is provided with a fixing groove 221 and a cutting groove 222. The cutting groove 222 is located on the side of the fixing groove 221 away from the glue feeder 11, and the fixing groove 221 is suitable for fixing the electrode tab. The glue cutting assembly includes a glue cutting knife 31, which is movably arranged in the cutting groove 222. The electrode tab coating device includes an idle state and a coating state. In the idle state, the glue feeder 11 and the lifting part 22 are spaced apart. In the coating state, the glue feeder 11 abuts against the electrode tab in the fixing groove 221.
[0033] The tab coating device of this embodiment, through the coordinated operation of the glue feeding assembly 10, the worktable 20 and the glue cutting assembly, can achieve rapid glue feeding, positioning and cutting actions, which greatly improves the coating speed and increases the number of coatings per unit time. Through the precise mechanical structure, it can ensure that the position, force and length of each coating are highly consistent, which greatly improves the stability and consistency of coating quality and reduces the defect rate.
[0034] Specifically, in this embodiment, the side of the adhesive tape adsorbed on the glue feeder 11 that is away from the first rotating shaft 12 is the adhesive side; such as Figure 1 As shown in the figure, the figure represents the idle state. In this embodiment, the glue feeder 11 is located on the left side of the fixed groove 221, and the cutter groove 222 is located on the right side of the fixed groove 221.
[0035] Specifically, when using the tab coating device, the tape is attracted and driven by the tape feeder 11. After the lifting part 22 is raised, the tape comes into contact with the tab of the fixing groove 221. The main body 21 moves laterally so that the tape is completely adhered to the surface of the tab. Then the tape cutter 31 is raised to cut the tape. The tape cutter 31 and the lifting part 22 descend in sequence to complete the single-sided coating of the tab.
[0036] It should be noted that the negative pressure adsorption force generated by the adsorption hole 111 is less than the adhesive force between the tape and the tab. That is, when the tab and the tape come into contact and adhere, the adhered part of the tape will detach from the tape feeder 11.
[0037] It should be noted that, in order to facilitate tape cutting, different sizes of tape can be selected according to the size of the tabs, and easy-cut holes can be reserved on the tape to facilitate tape cutting.
[0038] It should be noted that a negative pressure hole can be opened in the fixing groove 221, and negative pressure can be generated in the fixing groove 221 by evacuating air, so that the electrode tab is firmly fixed in the fixing groove 221; or, mechanical structures such as buckles can be used to fix the electrode tab.
[0039] In one embodiment, such as Figures 1 to 3 As shown, the glue feeding assembly 10 also includes a first stop 13, which is sleeved on the first rotating shaft 12. There are two first stops 13, which are respectively disposed on both sides of the glue feeder 11 and abut against the glue feeder 11.
[0040] Specifically, such as Figure 1 As shown, the two first stops 13 clamp and fix the glue feeder 11.
[0041] It should be noted that the positions of the two first stops 13 can be adjusted according to actual needs, thereby adjusting the position of the glue feeder 11.
[0042] It is worth noting that by setting the first stop 13, the displacement of the glue feeder 11 along the first rotating shaft 12 is restricted to both sides, so as to prevent the position of the glue feeder 11 from changing during the operation of the tab coating device and avoid affecting the product quality.
[0043] In one embodiment, such as Figures 1 to 3As shown, the glue feeding assembly 10 also includes a tape reel 14 and a second rotating shaft 15. The tape reel 14 is sleeved on the second rotating shaft 15. The rotation direction of the second rotating shaft 15 is opposite to the rotation direction of the first rotating shaft 12. The tape reel 14 is adapted to supply tape to the glue feeder 11.
[0044] Specifically, in this embodiment, such as Figure 2 and Figure 3 As shown, the first rotating shaft 12 rotates clockwise, and the second rotating shaft 15 rotates counterclockwise.
[0045] It should be noted that the first rotating shaft 12 and the second rotating shaft 15 rotate synchronously to facilitate synchronous transmission of the conveyor belt and prevent the conveyor belt from being stretched and broken during transmission.
[0046] In one embodiment, such as Figures 1 to 3 As shown, the glue feeding assembly 10 also includes a second stop 16, which is sleeved on the second rotating shaft 15. There are two second stops 16, which are respectively disposed on both sides of the tape reel 14 and abut against the tape reel 14.
[0047] Specifically, such as Figure 1 As shown, the two second stops 16 clamp and fix the tape reel 14.
[0048] It should be noted that the positions of the two second stops 16 can be adjusted according to actual needs, thereby adjusting the position of the tape reel 14.
[0049] Of course, in other alternative embodiments, the position of the tape reel 14 can also be fixed by means of engaging the tape reel 14 with the second rotating shaft 15.
[0050] It is worth noting that by setting the second stop 16, the tape reel 14 is restricted from moving to both sides along the second rotating shaft 15, so as to prevent the position of the tape reel 14 from changing during the operation of the tab coating device and avoid affecting the product quality.
[0051] In one embodiment, such as Figure 1 As shown, the glue feeding assembly 10 also includes a support rod 17, which is rotatably disposed between the glue feeder 11 and the tape reel 14. The rotation direction of the support rod 17 is the same as the rotation direction of the first rotating shaft 12, and the support rod 17 is suitable for supporting the tape.
[0052] It should be noted that the support rod 17 is in contact with the non-adhesive side of the tape.
[0053] It should be noted that the support rod 17 is rotatable, which can reduce the friction between the support rod 17 and the tape, and reduce the wear on the tape.
[0054] It is worth noting that by setting the support rod 17, the glue feeder 11 and the tape reel 14 are supported, preventing the tape from sagging and rolling into other components; by rotating the support rod 17, the tape is driven and guided towards the glue feeder 11.
[0055] In one embodiment, such as Figure 1 As shown, there are several support rods 17, which are spaced apart.
[0056] Specifically, in this embodiment, five support rods 17 are provided.
[0057] Of course, in other alternative implementations, the number of support rods 17 can be adjusted according to actual needs.
[0058] It is worth noting that by setting several support rods 17, the support stability of the tape is further improved.
[0059] In one embodiment, such as Figure 2 and Figure 3 As shown, the worktable 20 also includes a transverse motor 23 and a lifting motor 24. The drive end of the transverse motor 23 is connected to the main body 21, and the drive end of the lifting motor 24 is connected to the lifting part 22.
[0060] It is worth noting that by setting up the transverse motor 23 and the lifting motor 24, precise control of the main body 21 and the lifting part 22 can be achieved, resulting in a fast response speed and improved work efficiency of the tab coating process.
[0061] It should be noted that in other alternative embodiments, the lateral displacement of the main body 21 and the lifting displacement of the lifting part 22 can also be driven by means of cylinders, hydraulic cylinders, electromagnetic drives, etc.
[0062] It should be noted that in other alternative embodiments, the worktable 20 can also be fixedly installed, and the glue feeding assembly 10 can be moved as a whole by means of a motor, cylinder or other driving method.
[0063] In one embodiment, such as Figure 1 As shown, the worktable 20 also includes a guide rail 25, and the main body 21 is slidably mounted on the guide rail 25.
[0064] Specifically, in this embodiment, two guide rails 25 are provided at parallel intervals.
[0065] It is worth noting that by setting the guide rail 25, the movement of the main body 21 can be constrained, limiting its movement or shaking in other unnecessary directions, thereby enhancing the stability of the entire system; when the main body 21 or the guide rail 25 fails, since they are connected in a sliding manner, it is easy to disassemble and repair.
[0066] In one embodiment, the cutting assembly further includes a cutting cylinder (not shown), the drive end of which is connected to the cutting blade 31 to extend or retract the cutting groove 222.
[0067] It is worth noting that by adjusting the speed and pressure of the cylinder's air intake and exhaust, the speed, stroke, and position of the rubber cutting blade 31's extension and retraction can be precisely controlled, thereby enabling high-precision rubber cutting.
[0068] In one embodiment, the tab coating device further includes a control component, which is electrically connected to the transverse motor 23, the lifting motor 24, the first rotating shaft 12, and the glue-cutting cylinder.
[0069] Specifically, the transverse motor 23, the lifting motor 24, the first rotating shaft 12, and the cutting cylinder transmit their respective motion information to the control component via electrical signals. The control component analyzes the electrical signals and controls each actuator to perform the next action.
[0070] It is worth noting that the control component receives, analyzes, and controls each actuator to achieve integrated control of the tab coating device.
[0071] Using the tab coating device of this embodiment, firstly, the tab is placed in the fixing groove 221; then, the lifting motor 24 raises the lifting part 22, and the tab comes into contact with the tape on the glue feeder 11 and adheres; then, the traverse motor 23 pushes the main body 21 and the lifting part 22 to the left, and the glue feeder 11 rolls to feed glue at the same time, and the entire surface of the tab is adhered with tape; then, the glue cutting cylinder drives the glue cutting blade 31 to rise, cuts the tape and resets; finally, the lifting motor 24 and the traverse motor 23 reset, and the tab is coated on one side.
[0072] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.
Claims
1. A tab coating device, characterized in that, include: The adhesive feeding assembly (10) includes an adhesive feeder (11) and a first rotating shaft (12). The adhesive feeder (11) is sleeved on the first rotating shaft (12). The adhesive feeder (11) has an adsorption hole (111) and is adapted to adsorb and pull the tape. A workbench (20) is provided below the glue feeder (11). The workbench (20) includes a main body (21) and a lifting part (22). The lifting part (22) is vertically and vertically disposed within the main body (21). The main body (21) is horizontally movable. The lifting part (22) is provided with a fixing groove (221) and a cutting groove (222). The cutting groove (222) is disposed on the side of the fixing groove (221) away from the glue feeder (11). The fixing groove (221) is suitable for fixing the tab. A glue-cutting assembly, the glue-cutting assembly including a glue-cutting blade (31), the glue-cutting blade (31) being vertically and vertically disposed within the cutting groove (222); The electrode tab coating device includes an idle state and a coating state. In the idle state, the glue feeder (11) and the lifting part (22) are spaced apart. In the coating state, the glue feeder (11) abuts against the electrode tab in the fixing groove (221).
2. The electrode tab coating device according to claim 1, characterized in that, The glue feeding assembly (10) further includes a first stop (13), which is sleeved on the first rotating shaft (12). There are two first stops (13), which are respectively disposed on both sides of the glue feeder (11) and abut against the glue feeder (11).
3. The electrode tab coating device according to claim 1, characterized in that, The adhesive feeding assembly (10) further includes a tape reel (14) and a second rotating shaft (15). The tape reel (14) is sleeved on the second rotating shaft (15). The rotation direction of the second rotating shaft (15) is opposite to the rotation direction of the first rotating shaft (12). The tape reel (14) is adapted to supply tape to the adhesive feeder (11).
4. The electrode tab coating device according to claim 3, characterized in that, The glue feeding assembly (10) further includes a second stop (16), which is sleeved on the second rotating shaft (15). There are two second stops (16), which are respectively located on both sides of the tape reel (14) and abut against the tape reel (14).
5. The electrode tab coating device according to claim 3, characterized in that, The glue feeding assembly (10) further includes a support rod (17), which is rotatably disposed between the glue feeder (11) and the tape reel (14). The rotation direction of the support rod (17) is the same as the rotation direction of the first rotating shaft (12), and the support rod (17) is adapted to support the tape.
6. The electrode tab coating device according to claim 5, characterized in that, The support rod (17) is provided in a plurality of places, and the plurality of support rods (17) are arranged at intervals.
7. The electrode tab coating device according to any one of claims 1-6, characterized in that, The workbench (20) also includes a transverse motor (23) and a lifting motor (24). The drive end of the transverse motor (23) is connected to the main body (21), and the drive end of the lifting motor (24) is connected to the lifting part (22).
8. The electrode tab coating device according to claim 7, characterized in that, The worktable (20) also includes a guide rail (25), and the main body (21) is slidably disposed on the guide rail (25).
9. The electrode tab coating device according to claim 7, characterized in that, The cutting assembly also includes a cutting cylinder, the drive end of which is connected to the cutting blade (31) to extend or retract the cutting groove (222).
10. The electrode tab coating device according to claim 9, characterized in that, The electrode tab coating device also includes a control component, which is electrically connected to the transverse motor (23), the lifting motor (24), the first rotating shaft (12), and the glue-cutting cylinder.