Tab rubber coating device

Abstract

The utility model provides a tab rubber coating device which comprises a driving mechanism, a battery cell positioning mechanism and a rubber feeding mechanism, and the driving mechanism is used for driving a battery cell to rotate; the battery cell positioning mechanism comprises a supporting assembly and a positioning assembly, the supporting assembly is arranged below the driving mechanism, and the supporting assembly is used for placing a battery cell and adjusting the longitudinal and / or transverse position of the battery cell; and the positioning assembly is arranged above the supporting assembly and is used for axially positioning the battery cell. The supporting assembly is used for placing the battery cell and can adjust the position of the battery cell in the longitudinal direction and / or the transverse direction, the positioning assembly plays a role in positioning and limiting the battery cell, the battery cell does not move in the machining process, the consistency of the rubber coating and pasting positions is guaranteed, the problem that the manual rubber pasting positions are inconsistent is avoided, and the production efficiency and the product yield can be improved.

Description

Technical Field

[0001] This application belongs to the field of battery production equipment technology, and more specifically, relates to a tab coating device. Background Technology

[0002] In the existing cylindrical battery full tab process, after the current collector is welded to the tab, a ring of high-temperature tape needs to be wrapped around the tab to prevent short circuit caused by contact between the tab and the casing. Since the full tab process is not yet mature and the degree of automation is not high, the tab wrapping part is currently mainly done manually, which has defects such as slow efficiency and inconsistent tape width and position. Utility Model Content

[0003] The purpose of this application is to provide a tab coating device to solve the technical problems existing in the prior art, which mainly rely on manual coating of the tabs, resulting in slow efficiency and inconsistent tape application width and position.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] A tab-coating device is provided, comprising:

[0006] The drive mechanism is used to drive the battery cell to rotate.

[0007] A battery cell positioning mechanism includes a support assembly and a positioning assembly. The support assembly is located below the drive mechanism and is used to place the battery cell and adjust its longitudinal and / or lateral position. The positioning assembly is located above the support assembly and is used to axially position the battery cell.

[0008] The adhesive feeding mechanism is used to convey adhesive tape and attach the tape to the tabs of the battery cells placed on the support assembly.

[0009] Optionally, the drive mechanism includes a drive motor and a drive wheel, with the output end of the drive motor connected to the drive wheel, and the positioning component located between the support component and the drive wheel.

[0010] Optionally, the support assembly includes a lifting cylinder, a support base, a pair of follower wheels, and a lateral movement module. The output end of the lifting cylinder is connected to the support base, and the pair of follower wheels are arranged side by side on the support base. The tangential surfaces of the follower wheels are opposite to the tangential surfaces of the drive wheels. The lateral movement module is connected to the lifting cylinder and is used to drive the lifting cylinder to move laterally.

[0011] Optionally, the lateral movement module includes a lateral movement cylinder and a track, the output end of the lateral movement cylinder is connected to a lifting cylinder, and the lifting cylinder is slidably connected to the track.

[0012] Optionally, the positioning assembly includes a positioning cylinder, a first bearing, an elastic element, and a guide rod. The positioning cylinder and the guide rod are arranged opposite to each other. The first bearing is connected to the output end of the positioning cylinder. The elastic element is disposed on the guide rod, and the end of the elastic element near the positioning cylinder protrudes from the end of the guide rod. The first bearing and the elastic element are arranged opposite to each other.

[0013] Optionally, the positioning assembly also includes a second bearing, which is disposed at one end of the guide rod near the positioning cylinder, and the elastic element protrudes from the end face of the second bearing near the positioning cylinder.

[0014] Optionally, the adhesive feeding mechanism includes an unwinding assembly and, from top to bottom, a pressing assembly, a cutting assembly, an applicating assembly, a gripper assembly, and a linear module. The unwinding assembly is used to hold the adhesive tape. The pressing assembly, applicating assembly, gripper assembly, and linear module are all located on one side of the support assembly, and the gripper assembly and the linear module are slidably connected.

[0015] Optionally, the adhesive pressing assembly includes an adhesive pressing cylinder, an adhesive pressing head, and an adhesive suction tray. The output end of the adhesive pressing cylinder is connected to the adhesive pressing head, and the adhesive pressing head and the adhesive suction tray are arranged opposite to each other.

[0016] Optionally, the glue-cutting assembly includes a glue-cutting cylinder and a cutter, with the output end of the glue-cutting cylinder connected to the cutter.

[0017] Optionally, the adhesive application assembly includes an adhesive application cylinder and an adhesive application head connected to the output end of the adhesive application cylinder, wherein the adhesive application head and the pressure head are located on the same vertical line.

[0018] Optionally, the gripper assembly includes a gripper cylinder, wherein the central axis of the gripper is on the same plane as the end face of the adhesive suction tray.

[0019] Optionally, the linear assembly includes a linear cylinder, the output end of which is connected to the gripper assembly.

[0020] The beneficial effects of the tab-coating device provided in this application are as follows:

[0021] During operation, the battery cell to be coated is placed on the support assembly, the positioning assembly positions the battery cell axially, the glue feeding mechanism delivers the adhesive tape and attaches the tape to the battery cell's tabs, and then the drive mechanism rotates the battery cell. As the tabs rotate, the adhesive tape adheres to the outer circumference of the tabs, achieving automatic coating. The support assembly places the battery cell and can adjust its longitudinal and / or lateral position. The positioning assembly positions and limits the battery cell, preventing it from shifting during processing and ensuring consistent coating position. This avoids the problem of inconsistent positions when manually applying adhesive, improving production efficiency and product yield. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the electrode tab coating device provided in the embodiments of this application;

[0024] Figure 2 for Figure 1 A schematic diagram of the drive mechanism and cell positioning mechanism in the tab coating device;

[0025] Figure 3 for Figure 1 A schematic diagram of the glue feeding mechanism in the electrode tab coating device;

[0026] Figure 4 for Figure 1 A schematic diagram illustrating the application of the tab coating device.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Electrode coating device;

[0029] 10. Bracket; 20. Drive mechanism; 21. Drive motor; 22. Drive wheel;

[0030] 30. Cell positioning mechanism; 311. Lifting cylinder; 312. Support base; 313. Follower wheel; 314. Lateral movement cylinder; 315. Track; 321. Positioning cylinder; 322. First bearing; 323. Elastic element; 324. Guide rod; 325. Second bearing;

[0031] 40. Glue feeding mechanism; 41. Glue reel; 42. Glue pressing cylinder; 43. Glue pressing head; 44. Glue suction tray; 45. Glue cutting cylinder; 46. Cutter; 47. Glue applying cylinder; 48. Glue applying head; 49. Gripper cylinder; 410. Linear cylinder;

[0032] 50. Battery cells;

[0033] 60. Adhesive tape. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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 application 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 application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0038] Please refer to the following: Figures 1 to 4 The tab coating device 1 provided in this application embodiment will now be described. The tab coating device 1 includes a drive mechanism 20, a cell positioning mechanism 30, and a glue feeding mechanism 40. The drive mechanism 20 drives the cell 50 to rotate. The cell positioning mechanism 30 includes the drive mechanism 20, a support assembly, and a positioning assembly. The support assembly is disposed below the drive mechanism 20 and is used to place the cell 50 and adjust its longitudinal and / or lateral position. The positioning assembly is disposed above the support assembly and is used to axially position the cell 50. The glue feeding mechanism 40 feeds adhesive tape and attaches it to the tab of the cell 50 placed on the support assembly.

[0039] The tab coating device 1 provided in this application embodiment, during operation, places the battery cell 50 to be coated on the support assembly, the positioning assembly axially positions the battery cell 50, the adhesive feeding mechanism 40 delivers adhesive tape and attaches the tape to the tab of the battery cell 50, and then the drive mechanism 20 rotates the battery cell 50. As the tab rotates, the adhesive tape adheres to the outer periphery of the tab, realizing automatic coating. The support assembly places the battery cell 50 and can adjust the longitudinal and / or lateral position of the battery cell 50. The positioning assembly positions and limits the battery cell 50, preventing it from shifting during processing and ensuring the consistency of the coating position. This avoids the problem of inconsistent positions when manually applying adhesive, improving production efficiency and product yield.

[0040] Understandably, the tab coating device 1 in this application embodiment also includes a bracket 10, and the drive mechanism 20, the cell positioning mechanism 30 and the glue feeding mechanism 40 are all mounted on the bracket 10.

[0041] In some embodiments of this application, the drive mechanism 20 includes a drive motor 21 and a drive wheel 22, the output end of the drive motor 21 is connected to the drive wheel 22, and the positioning component is located between the support component and the drive wheel 22.

[0042] In some embodiments of this application, the support assembly includes a lifting cylinder 311, a support base 312, a pair of follower wheels 313, and a lateral movement module. The output end of the lifting cylinder 311 is connected to the support base 312. The follower wheels 313 are arranged side by side on the support base 312, with the cross-sections of the follower wheels 313 facing each other. The lateral movement module is connected to the lifting cylinder 311 and is used to drive the lifting cylinder 311 to move laterally. The lifting cylinder 311 can drive the battery cell 50 to descend or rise longitudinally. The lateral movement module, by driving the movement of the lifting cylinder 311, drives the battery cell 50 to move laterally. Thus, the position of the battery cell 50 in the longitudinal and / or lateral directions can be adjusted according to the model of the battery cell 50 to be processed and the coating position, ensuring accurate coating and consistent positioning in batch processing.

[0043] During processing, the battery cell 50 is placed between two follower wheels 313. The drive motor 21 drives the drive wheel 22 to rotate. The drive wheel 22 drives the battery cell 50 to rotate through friction. The follower wheels 313 rotate accordingly. The length of the coating is determined by the rotation circumference of the battery cell 50. Therefore, the length of the coating can be adjusted by setting the rotation parameters of the drive motor 21.

[0044] The design of the two follower wheels 313 avoids the battery cell 50 from directly contacting the support component, reducing rotational resistance; moreover, the gap formed between the two follower wheels 313 is similar to a groove, which plays a certain role in limiting the battery cell 50, and together with the positioning component, achieves the effect of dual limiting and positioning of the battery cell 50.

[0045] In some embodiments of this application, such as Figure 1 As shown, the transverse module includes a transverse cylinder 314 and a track 315. The output end of the transverse cylinder 314 is connected to the lifting cylinder 311, and the lifting cylinder 311 is slidably connected to the track 315.

[0046] In some embodiments of this application, the positioning component includes a positioning cylinder 321, a first bearing 322, an elastic element 323, and a guide rod 324. The positioning cylinder 321 and the guide rod 324 are disposed opposite to each other. The first bearing 322 is connected to the output end of the positioning cylinder 321. The elastic element 323 is disposed on the guide rod 324, and the end of the elastic element 323 near the positioning cylinder 321 protrudes from the end of the guide rod 324. The first bearing 322 and the elastic element 323 are disposed opposite to each other.

[0047] During processing, the battery cell 50 is clamped between the first bearing 322 and the elastic element 323, making it difficult for the battery cell 50 to shift. When the battery cell 50 rotates, the first bearing 322 rotates accordingly, ensuring positioning without hindering the rotation of the battery cell 50. The elastic element 323 provides support for the battery cell 50 and buffers the pressure of the first bearing 322 on the battery cell 50.

[0048] The elastic element 323 can be a spring, which has excellent elastic cushioning and supporting force. When the elastic element 323 is a spring, such as Figure 1 and Figure 2 As shown, the spring is sleeved on the guide rod 324.

[0049] In some embodiments of this application, the positioning assembly further includes a second bearing 325, which is disposed at one end of the guide rod 324 near the positioning cylinder 321. An elastic element 323 protrudes from the end face of the second bearing 325 near the positioning cylinder 321. When the elastic element 323 is a spring, it is sleeved on the guide rod and passes through the middle of the second bearing 325, protruding from the end face of the second bearing 325 near the positioning cylinder 321. During processing, the battery cell 50 is clamped between the first bearing 322 and the elastic element 323. When the battery cell 50 rotates, the first bearing 322 and the second bearing 325 rotate accordingly, and the second bearing 325 drives the elastic element 323 to rotate together.

[0050] In some embodiments of this application, the adhesive feeding mechanism 40 includes an unwinding assembly and, from top to bottom, a pressing assembly, a cutting assembly, an applicating assembly, a gripper assembly, and a linear module. The unwinding assembly is used to hold the adhesive tape. The pressing assembly, the applicating assembly, the gripper assembly, and the linear module are all disposed on one side of the support assembly. The gripper assembly and the linear module are slidably connected.

[0051] Optionally, the unwinding assembly includes a tape reel 41 on which the tape roll is placed. The end of the tape is connected to the gripper assembly via a roller, a pressing assembly, a cutting assembly, and an applicating assembly. The gripper assembly pulls and fixes one end of the tape. When the gripper assembly pulls the tape to a preset position, the pressing assembly presses down on the tape to prevent it from moving. The cutting assembly can cut the tape smoothly, and then the applicating assembly applies the tape to the tab of the battery cell 50.

[0052] In some embodiments of this application, the adhesive application assembly includes an adhesive application cylinder 42, an adhesive application head 43, and a suction tray 44. The output end of the adhesive application cylinder 42 is connected to the adhesive application head 43, and the adhesive application head 43 and the suction tray 44 are disposed opposite to each other. The extension and retraction of the output end of the adhesive application cylinder 42 can drive the adhesive application head 43 to move closer to and away from the suction tray 44. By the adhesive application head 43 approaching and pressing the suction tray 44, a portion of the adhesive tape is clamped between the adhesive application head 43 and the suction tray 44.

[0053] In some embodiments of this application, the tape-cutting assembly includes a tape-cutting cylinder 45 and a cutter 46, with the output end of the tape-cutting cylinder 45 connected to the cutter 46. The extension and retraction of the output end of the tape-cutting cylinder 45 drives the cutter 46 away from and towards the tape, thus cutting the tape. 60

[0054] In some embodiments of this application, the adhesive application assembly includes an adhesive application cylinder 47 and an adhesive application head 48 connected to the output end of the adhesive application cylinder 47. The adhesive application head 48 and the pressure head 43 are located on the same vertical line. The extension of the output end of the adhesive application cylinder 47 drives the adhesive application head 48 to approach the tape and the battery cell 50, and pushes the tape to adhere to the electrode tab of the battery cell 50. The adhesive application head 48 can be roller-shaped or block-shaped. In some preferred embodiments, the adhesive application head 48 is roller-shaped, which reduces the friction of the adhesive application head 48 on the tape and reduces the risk of the tape being deformed by friction due to the adhesive application head 48 during the application process.

[0055] In some embodiments of this application, the gripper assembly includes a gripper cylinder 49, and the central axis of the gripper is located on the same plane as the end face of the adhesive suction tray 44. In this embodiment, the central axis of the gripper refers to the axis along the vertical direction from which the center of the gripper is located. The fact that the central axis of the gripper is on the same plane as the end face of the adhesive suction tray 44 ensures the straight extension of the adhesive tape in the vertical direction, reducing the problem of tensile deformation.

[0056] In some embodiments of this application, the linear assembly includes a linear cylinder 410, the output end of which is connected to the gripper assembly. The extension direction of the output end of the linear cylinder 410 is parallel to the extension direction of the tape, and the gripper assembly is raised or lowered by the extension and retraction of the output end of the linear cylinder 410. When the gripper assembly includes a gripper cylinder 49, the output end of the linear cylinder 410 is connected to the gripper cylinder 49.

[0057] In the tab coating device 1 of this application embodiment, the tape is installed on the tape reel 41 and connected to the gripper cylinder 49 via a roller. When cutting the tape, the pressing head 43 presses the tape tightly onto the suction plate 44. When pulling the tape, the pressing cylinder 42 opens and the suction plate 44 vacuum-adsorbs the tape to prevent the tape from falling off.

[0058] The battery cell 50 is placed horizontally on the follower wheel 313 of the support base 312. The lateral movement cylinder 314 extends, and the battery cell 50 and the lifting cylinder 311 move along the track 315 to the adhesive application position. The lifting cylinder 311 extends, and at the same time, the positioning cylinder 321 extends. The first bearing 322 and the elastic element 323 clamp the battery cell 50 and perform axial positioning of the battery cell 50. After the battery cell 50 contacts the drive wheel 22, the pressure cylinder 42 extends, the pressure head 43 attaches the tape to the surface of the battery cell 50, the gripper cylinder 49 opens the gripper, the drive motor 21 drives the drive wheel 22 to rotate, the battery cell 50 and the first bearing 322 and the second bearing 325 rotate synchronously, the tape stops after completing half a turn of the tape wrapping under the combined action of the pressure head 43 and the rotation of the battery cell 50, the tape cutting cylinder 45 is activated, causing the cutter 46 to cut the tape, the drive motor 21 rotates again to complete the remaining tape wrapping, then the positioning cylinder 321 retracts, the lifting cylinder 311 descends, and the lateral cylinder 314 retracts, completing one wrapping cycle.

[0059] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tab coating device for coating the tabs of a battery cell (50), characterized in that: include: A drive mechanism (20) is provided to drive the battery cell (50) to rotate. A cell positioning mechanism (30) includes a support component and a positioning component. The support component is disposed below the drive mechanism (20) and is used to place the cell (50) and adjust the position of the cell (50) in the longitudinal and / or lateral directions. The positioning component is disposed above the support component and is used to axially position the cell (50). A tape feeding mechanism (40) is used to feed tape and attach the tape to the tabs of the battery cell (50) placed on the support assembly.

2. The electrode tab coating device as described in claim 1, characterized in that: The drive mechanism (20) includes a drive motor (21) and a drive wheel (22). The output end of the drive motor (21) is connected to the drive wheel (22). The positioning component is located between the support component and the drive wheel (22).

3. The electrode tab coating device as described in claim 2, characterized in that: The support assembly includes a lifting cylinder (311), a support base (312), a pair of follower wheels (313), and a lateral movement module. The output end of the lifting cylinder (311) is connected to the support base (312). The pair of follower wheels (313) are arranged side by side on the support base (312). The cross-section of the follower wheel (313) is opposite to the cross-section of the drive wheel (22). The lateral movement module is connected to the lifting cylinder (311) and is used to drive the lifting cylinder (311) to move laterally.

4. The electrode tab coating device as described in claim 3, characterized in that: The transverse module includes a transverse cylinder (314) and a track (315). The output end of the transverse cylinder (314) is connected to the lifting cylinder (311), and the lifting cylinder (311) is slidably connected to the track (315).

5. The electrode tab coating device as described in claim 1, characterized in that: The positioning assembly includes a positioning cylinder (321), a first bearing (322), an elastic element (323), and a guide rod (324). The positioning cylinder (321) and the guide rod (324) are arranged opposite to each other. The first bearing (322) is connected to the output end of the positioning cylinder (321). The elastic element (323) is disposed on the guide rod (324), and the end of the elastic element near the positioning cylinder (321) protrudes from the end of the guide rod (324). The first bearing (322) and the elastic element (323) are arranged opposite to each other.

6. The electrode tab coating device as described in claim 5, characterized in that: The positioning assembly further includes a second bearing (325), which is disposed at one end of the guide rod (324) near the positioning cylinder (321), and the elastic element (323) protrudes from the end face of the second bearing (325) near the positioning cylinder (321).

7. The electrode tab coating device as described in claim 1, characterized in that: The adhesive feeding mechanism (40) includes an unwinding assembly and, from top to bottom, a pressing assembly, a cutting assembly, an applicating assembly, a gripper assembly, and a linear module. The unwinding assembly is used to place the adhesive tape. The pressing assembly, the applicating assembly, the gripper assembly, and the linear module are all located on one side of the support assembly. The gripper assembly and the linear module are slidably connected.

8. The electrode tab coating device as described in claim 7, characterized in that: The adhesive pressing assembly includes an adhesive pressing cylinder (42), an adhesive pressing head (43), and an adhesive suction tray (44). The output end of the adhesive pressing cylinder (42) is connected to the adhesive pressing head (43), and the adhesive pressing head (43) and the adhesive suction tray (44) are arranged opposite to each other; and / or, The cutting assembly includes a cutting cylinder (45) and a cutter (46), with the output end of the cutting cylinder (45) connected to the cutter (46).

9. The electrode tab coating device as described in claim 8, characterized in that: The adhesive application assembly includes an adhesive application cylinder (47) and an adhesive application head (48) connected to the output end of the adhesive application cylinder (47). The adhesive application head (48) and the adhesive pressing head (43) are located on the same vertical line.

10. The electrode tab coating device as described in claim 8 or 9, characterized in that: The gripper assembly includes a gripper cylinder (49), the central axis of the gripper being on the same plane as the end face of the adhesive suction tray (44); and / or, The linear assembly includes a linear cylinder (410), the output end of which is connected to the gripper assembly.

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