Novel rubberizing mechanism

Abstract

The invention relates to a novel rubberizing mechanism which comprises a rubberizing table, at least two rubberizing assemblies, at least two coiling assemblies and a conveying assembly, each rubberizing assembly is arranged on the rubberizing table, at least one rubberizing assembly is used for rubberizing the A surface of a foil, at least one rubberizing assembly is used for rubberizing the B surface of the foil, each coiling assembly is arranged on the rubberizing table, and the conveying assembly is arranged on the rubberizing table. The at least one winding assembly is used for unwinding the foil, and the at least one winding assembly is used for winding the foil; the conveying assembly is arranged on the rubberizing table, the conveying assembly comprises a conveying part and a driving part, the conveying part comprises a plurality of conveying rollers and at least two rubberizing rollers, each conveying roller is rotationally arranged on the rubberizing table, the foil is sequentially wound on the peripheral surface of each conveying roller so as to be conveyed, and the driving part is used for driving the conveying part. The double-sided adhesive tape pasting device has the effect of improving the double-sided adhesive tape pasting efficiency of the foil.

Description

Technical Field

[0001] This application relates to the field of battery adhesive application, and in particular to a novel adhesive application mechanism. Background Technology

[0002] In the manufacturing process of wound battery cells, the positive electrode, separator, and negative electrode are layered together by winding. The positive electrode is typically made of foil as the current collector. However, due to the relatively low ductility of foil, during the pressure shaping process after winding, the positive electrode is susceptible to stress concentration at the winding corners—the abrupt transition from a straight section to a curved section. This stress can cause microcracks or even tears in the foil substrate. Such defects can lead to the shedding of active material, reducing battery capacity, and potentially causing internal short circuits and other safety hazards. Current technologies generally employ a process of pre-applying adhesive tape at the winding corners of the positive electrode to distribute stress through the adhesive reinforcement, thereby improving the foil's tear resistance. However, traditional adhesive-applying equipment can only perform single-sided application, not simultaneous double-sided application, resulting in inefficient double-sided adhesive application of the foil. Summary of the Invention

[0003] To improve the efficiency of double-sided adhesive application on foil, this application provides a novel adhesive application mechanism.

[0004] The novel adhesive applicator provided in this application adopts the following technical solution: A novel adhesive application mechanism includes an adhesive application table, at least two adhesive application components, at least two roll components, and a conveying component. Each of the adhesive application components is disposed on the adhesive application table. At least one adhesive application component is used to apply adhesive to side A of the foil, and at least one adhesive application component is used to apply adhesive to side B of the foil. Each of the roll components is disposed on the adhesive application table. At least one roll component is used to unwind the foil, and at least one roll component is used to rewind the foil. The conveying assembly is disposed on the adhesive application table. The conveying assembly includes a conveying component and a driving component. The conveying component includes multiple conveying rollers and at least two adhesive application rollers. Each of the conveying rollers is rotatably disposed on the adhesive application table. The foil is sequentially wrapped around the outer circumferential surface of each of the conveying rollers to convey the foil. At least one adhesive application roller abuts against the A side of the foil and presses the B side of the foil against the adhesive application port of the adhesive application assembly for applying adhesive to the B side of the foil. At least one adhesive application roller abuts against the B side of the foil and presses the A side of the foil against the adhesive application port of the adhesive application assembly for applying adhesive to the A side of the foil. The driving component is used to drive the conveying component.

[0005] By adopting the above technical solution, when the foil needs to be double-sided adhesively applied, that is, both side A and side B of the foil need to be adhesively applied, the foil is unwound from a roll assembly and sequentially wound around each conveyor roller, and is conveyed by each conveyor roller through each adhesive application assembly. Finally, the adhesively applied foil is conveyed to a roll assembly so that the roll assembly can rewind the foil with adhesive applied to both side A and side B. When each conveyor roller conveys the foil between each adhesive application assembly, at least one adhesive application roller abuts against side A of the foil and presses side B of the foil firmly against the adhesive application assembly. The adhesive applicator has an applicator nozzle for applying adhesive to the B side of the foil, thereby completing the B-side adhesive application. At least one applicator roller abuts against the B side of the foil and presses the A side of the foil against the applicator nozzle for applying adhesive to the A side of the foil, thereby completing the A-side adhesive application. In summary, the adhesive applicator can simultaneously complete the double-sided adhesive application of the foil, improving upon the problem that traditional adhesive applicator equipment can only perform single-sided adhesive application and cannot perform double-sided adhesive application simultaneously, resulting in poor adhesive application efficiency when double-sided adhesive application of foil is required.

[0006] Optionally, the conveying assembly further includes at least two sets of detection components, at least one of which detects the adhesive on side A of the foil, and at least one of which detects the adhesive on side B of the foil.

[0007] Optionally, the detection component includes a detection camera and a detection light source. The detection camera is mounted on the adhesive application table and takes pictures of the adhesive application of the foil. The detection light source is mounted on the adhesive application table and illuminates the adhesive application of the foil.

[0008] Optionally, the driving component includes multiple drive sprockets, multiple conveyor sprockets, a drive chain, and a drive motor. A portion of the drive sprockets are coaxially fixed with each of the conveyor rollers, and another portion of the drive sprockets are coaxially fixed with each of the adhesive application rollers. Each of the conveyor sprockets is rotatably mounted on the adhesive application table. The drive chain is sequentially wound around each of the drive sprockets and each of the conveyor sprockets. The drive motor is fixedly mounted on the adhesive application table and is used to drive one of the drive sprockets or one of the conveyor sprockets to rotate.

[0009] Optionally, the drive component further includes at least two iron removal modules, at least one of which is located between the adhesive application assembly and a roll assembly for unwinding and is used to remove iron from the drive chain, and at least one of which is located between the adhesive application assembly and a roll assembly for rewinding and is used to remove iron from the drive chain.

[0010] Optionally, the conveying assembly further includes at least two sets of tension swing arm components, at least one set of tension swing arm components tensioning the foil unwound by the roll assembly, and at least one set of tension swing arm components tensioning the foil rewound by the roll assembly.

[0011] Optionally, the tension lever component includes a tensioning cylinder and a tensioning wheel. The tensioning cylinder is disposed on the adhesive application table, the piston rod of the tensioning cylinder is fixedly connected to the adhesive application table, the cylinder body of the tensioning cylinder slides and engages with the adhesive application table, and the tensioning wheel is rotatably disposed on the cylinder body of the tensioning cylinder, with foil wrapped around the tensioning wheel.

[0012] Optionally, the conveying assembly further includes a tension detection module, which is disposed on the adhesive application table and used to detect the tension of the foil, and feeds back the detection result to the tension swing arm component.

[0013] Optionally, the conveying assembly further includes at least one pressing component for pressing the foil onto one of the conveying rollers. The pressing component includes a pressing cylinder and a pressing wheel. The pressing cylinder is fixedly mounted on the adhesive application table, and the pressing wheel is rotatably mounted on the piston rod of the pressing cylinder.

[0014] Optionally, the roll assembly includes a roll base and a roll roller. The roll base is fixedly mounted on the adhesive application table, and the roll roller is rotatably mounted on the roll base. The foil is wound or unwound by the roll roller.

[0015] In summary, this application includes at least one of the following beneficial technical effects: When foil requires double-sided adhesive bonding (i.e., both sides A and B of the foil need to be adhesiveted), the foil is unwound from a roll assembly and sequentially wound onto each conveyor roller. It is then conveyed by each conveyor roller through each adhesive bonding assembly. Finally, the adhesive-bonded foil is conveyed to a roll assembly, where it is wound up to rewind the foil with both sides A and B adhesive bonded. As each conveyor roller delivers the foil between the adhesive bonding assemblies, at least one adhesive bonding roller abuts against side A of the foil and presses side B against the foil. The adhesive applicator has an adhesive applicator nozzle for applying adhesive to the B side, thus completing the adhesive application on the B side of the foil. At least one adhesive roller abuts against the B side of the foil and presses the A side of the foil against the adhesive applicator nozzle for applying adhesive to the A side of the foil, thus completing the adhesive application on the A side of the foil. In summary, the adhesive applicator can simultaneously complete the adhesive application on both sides of the foil, improving the problem that traditional adhesive applicator equipment can only perform single-sided adhesive application and cannot perform double-sided adhesive application at the same time, resulting in poor adhesive application efficiency when double-sided adhesive application is required. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the roll assembly structure according to an embodiment of this application; Figure 3 This is a schematic diagram of the conveying component structure according to an embodiment of this application; Figure 4 yes Figure 3 Enlarged view of part A; Figure 5 This is a schematic diagram of the conveying component structure according to an embodiment of this application; Figure 6 This is a schematic diagram of the drive component structure according to an embodiment of this application; Figure 7 yes Figure 6 Enlarged view of part B; Figure 8 yes Figure 6 Enlarged view of part C.

[0017] Explanation of reference numerals in the attached drawings: 1. Adhesive application table; 2. Adhesive application assembly; 3. Roll assembly; 3a. Unwind assembly; 3b. Rewind assembly; 31. Roll holder; 32. Roll roller; 33. Feed roller; 34. Sensing adjustment module; 35. Tape splicing platform; 36. Safety light curtain; 37. Track correction module; 38. Roll diameter detection module; 4. Conveying assembly; 41. Conveying component; 411. Conveying roller; 412. Adhesive application roller; 42. Drive component; 421. Drive sprocket; 422. Conveying sprocket; 423. Drive chain; 424. Drive motor; 425. Iron removal module; 43. Detection component; 431. Detection camera; 432. Detection light source; 44. Tension swing arm component; 441. Tensioning cylinder; 442. Tensioning wheel; 45. Tension detection module; 46. Pressing component; 461. Pressing cylinder; 462. Pressing wheel. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0019] This application discloses a novel adhesive application mechanism. (Refer to...) Figure 1 A novel adhesive applicator includes an adhesive applicator table 1, multiple adhesive applicator components 2, two roll-to-roll components 3, and a conveying component 4. Each adhesive applicator component 2 is disposed on the adhesive applicator table 1. At least one adhesive applicator component 2 is used for applying adhesive to side A of the foil, at least one adhesive applicator component 2 is used for applying adhesive to side B of the foil, and at least two adhesive applicator components 2 are arranged opposite each other to facilitate applying adhesive to side A and side B of the foil. Each roll-to-roll component 3 is disposed on the adhesive applicator table 1. One roll-to-roll component 3 is used for unwinding the foil as unwinding component 3a, and one roll-to-roll component 3 is used for winding the foil as winding component 3b. The conveying component 4 winds the foil. In this embodiment, one side of the foil is side A, and the other side of the foil is side B.

[0020] Reference Figure 2The roll assembly 3 includes a roll holder 31, a roll roller 32, multiple feed rollers 33, and a sensing and adjustment module 34. The roll holder 31 is fixedly mounted on the adhesive application table 1. The roll roller 32 is rotatably mounted on the roll holder 31. Each feed roller 33 is mounted on the roll holder 31. The foil is wound around each feed roller 33 and is wound or unwound by the roll roller 32. The sensing and adjustment module 34 is mounted on the roll holder 31 and is used to sense the foil to feed back the sensed signal to each feed roller 33 so that each feed roller 33 can be adjusted so that the roll assembly 3 can be better unwound or wound.

[0021] Reference Figure 2 The roll assembly 3 also includes a tape receiving platform 35, a safety light curtain 36, and a deviation correction module 37. The tape receiving platform 35 is disposed between two adjacent feed rollers 33 to ensure the flatness of the foil. The safety light curtain 36 is rotatably disposed on the roll table. The deviation correction module 37 is disposed on the roll table and is used to correct the deviation of the foil caused by unwinding or rewinding when the roll roller 32 is winding or unwinding.

[0022] When the coil assembly 3 is used for unwinding foil, i.e., when it is called unwinding assembly 3a, the coil assembly 3 also includes a coil diameter detection module 38. The coil diameter detection module 38 is set on the coil holder 31 and is used to detect the diameter of the coil roller 32, so as to facilitate the operator to feed the foil in a timely manner.

[0023] Reference Figure 3 and Figure 4 The conveying assembly 4 includes a conveying component 41, which includes multiple conveying rollers 411 and two adhesive rollers 412. Each conveying roller 411 is rotatably mounted on the adhesive application table 1. The foil is sequentially wrapped around the outer circumferential surface of each conveying roller 411 to convey the foil. One adhesive roller 412 abuts against the A side of the foil and presses the B side of the foil against the adhesive application port of the adhesive application assembly 2 for applying adhesive to the B side of the foil. The other adhesive roller 412 abuts against the B side of the foil and presses the A side of the foil against the adhesive application port of the adhesive application assembly 2 for applying adhesive to the A side of the foil.

[0024] Reference Figure 5 and Figure 6 The conveying assembly 4 also includes a driving component 42, which includes multiple driving sprockets 421, multiple conveying sprockets 422, a driving chain 423, and a driving motor 424. A portion of the driving sprockets 421 are coaxially fixed with each conveying roller 411, and another portion of the driving sprockets 421 are coaxially fixed with each adhesive application roller 412. Each conveying sprocket 422 is rotatably mounted on the adhesive application table 1. The driving chain 423 is sequentially wound around each driving sprocket 421 and each conveying sprocket 422. The driving motor 424 is fixedly mounted on the adhesive application table 1 and is used to drive one driving sprocket 421 or one conveying sprocket 422 to rotate.

[0025] Furthermore, the drive unit 42 can be used to automatically feed the foil so that the foil is wound around each conveyor roller 411 and the adhesive roller 412. When the drive unit 42 feeds the foil, it pulls one end of the foil out from the unwinding assembly 3a and attaches it to a crossbar for feeding. Then, the crossbar is fixedly connected to the drive chain 423, so that the crossbar moves in the direction of the drive chain 423. This allows the crossbar to be wound around each conveyor roller 411 and the adhesive roller 412 in sequence, and the foil connected to the crossbar to be wound around each conveyor roller 411 and the adhesive roller 412 in sequence. This allows the drive unit 42 to automatically feed the foil, making the foil feeding of the adhesive mechanism simpler and more convenient, eliminating the need for operators to manually wind the foil around each conveyor roller 411 and each adhesive roller 412 in sequence.

[0026] Reference Figure 5 and Figure 6 In this embodiment of the application, the drive component 42 further includes at least two iron removal modules 425. At least one iron removal module 425 is located between the adhesive application component 2 and a roll material assembly 3 for unwinding and is used to remove iron from the drive chain 423. At least one iron removal module 425 is located between the adhesive application component 2 and a roll material assembly 3 for winding and is used to remove iron from the drive chain 423.

[0027] Reference Figure 5 and Figure 6 In this embodiment of the application, the conveying component 4 further includes two sets of detection components 43. One detection component 43 detects the adhesive on side A of the foil, and the other detection component 43 detects the adhesive on side B of the foil. The detection component 43 includes a detection camera 431 and a detection light source 432. The detection camera 431 is set on the adhesive application table 1 and takes pictures of the adhesive on the foil. The detection light source 432 is set on the adhesive application table 1 and illuminates the adhesive on the foil.

[0028] Reference Figure 7 In this embodiment, the conveying assembly 4 further includes two sets of tension swing rod components 44. One set of tension swing rod components 44 tensions the foil unwound by the roll assembly 3, and the other set of tension swing rod components 44 tensions the foil wound by the roll assembly 3. The tension swing rod component 44 includes a tensioning cylinder 441 and a tensioning wheel 442. The tensioning cylinder 441 is disposed on the adhesive application table 1. The piston rod of the tensioning cylinder 441 is fixedly connected to the adhesive application table 1. The cylinder body of the tensioning cylinder 441 slides and engages with the adhesive application table 1. The tensioning wheel 442 is rotatably disposed on the cylinder body of the tensioning cylinder 441, and the foil is wound around the tensioning wheel 442.

[0029] Reference Figure 5 and Figure 6In this embodiment of the application, the conveying component 4 further includes a tension detection module 45, which is disposed on the adhesive application table 1 and used to detect the tension of the foil, and feeds back the detection result to the tension swing arm component 44.

[0030] Reference Figure 8 In this embodiment of the application, the conveying assembly 4 further includes a pressing component 46, which is used to press the foil onto a conveying roller 411. The pressing component 46 includes a pressing cylinder 461 and a pressing wheel 462. The pressing cylinder 461 is fixedly mounted on the adhesive application table 1, and the pressing wheel 462 is rotatably mounted on the piston rod of the pressing cylinder 461.

[0031] The implementation principle of a novel adhesive applicator according to an embodiment of this application is as follows: When the foil needs to be double-sided adhesively applied, that is, both side A and side B of the foil need to be adhesively applied, the foil is unwound from a roll assembly 3 and sequentially wound around each conveyor roller 411, and is conveyed by each conveyor roller 411 through each adhesive applicator 2. Finally, the foil with adhesive applied is conveyed to the roll assembly 3 so that the roll assembly 3 can rewind the foil with adhesive applied to both side A and side B. When each conveyor roller 411 conveys the foil between each adhesive applicator 2, at least one adhesive applicator roller 412 abuts against side A of the foil. The foil's B side is pressed against the adhesive application port of the adhesive application component 2, which is used for applying adhesive to the B side of the foil, thereby completing the adhesive application to the B side of the foil. At least one adhesive application roller 412 is in contact with the B side of the foil and the foil's A side is pressed against the adhesive application port of the adhesive application component 2, which is used for applying adhesive to the A side of the foil, thereby completing the adhesive application to the A side of the foil. In summary, the adhesive application component 2 can simultaneously complete the adhesive application to both sides of the foil, improving the problem that traditional adhesive application component 2 equipment can only perform single-sided adhesive application and cannot perform double-sided adhesive application at the same time, resulting in poor adhesive application efficiency when double-sided adhesive application is required.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel adhesive applicator, characterized in that: The device includes an adhesive application table (1), at least two adhesive application components (2), at least two roll assembly (3), and a conveying assembly (4). Each adhesive application component (2) is disposed on the adhesive application table (1). At least one adhesive application component (2) is used for applying adhesive to the A side of the foil, and at least one adhesive application component (2) is used for applying adhesive to the B side of the foil. Each roll assembly (3) is disposed on the adhesive application table (1). At least one roll assembly (3) is used for unwinding the foil, and at least one roll assembly (3) is used for winding the foil. The conveying assembly (4) is disposed on the adhesive application table (1). The conveying assembly (4) includes a conveying component (41) and a driving component (42). The conveying component (41) includes a plurality of conveying rollers (411) and at least two adhesive application rollers (412). Each of the conveying rollers (411) is rotatably disposed on the adhesive application table (1). The foil is sequentially wrapped around the outer circumferential surface of each of the conveying rollers (411) to convey the foil. At least one adhesive application roller (412) abuts against the A side of the foil and presses the B side of the foil against the adhesive application port of the adhesive application assembly (2) for applying adhesive to the B side of the foil. At least one adhesive application roller (412) abuts against the B side of the foil and presses the A side of the foil against the adhesive application port of the adhesive application assembly (2) for applying adhesive to the A side of the foil. The driving component (42) is used to drive the conveying component (41).

2. The novel adhesive applicator according to claim 1, characterized in that: The conveying assembly (4) further includes at least two sets of detection components (43), at least one of the detection components (43) detects the adhesive on the A side of the foil, and at least one of the detection components (43) detects the adhesive on the B side of the foil.

3. The novel adhesive applicator according to claim 2, characterized in that: The detection component (43) includes a detection camera (431) and a detection light source (432). The detection camera (431) is set on the adhesive application table (1) and takes pictures of the adhesive application of the foil. The detection light source (432) is set on the adhesive application table (1) and illuminates the adhesive application of the foil.

4. The novel adhesive applicator according to claim 1, characterized in that: The driving component (42) includes multiple driving sprockets (421), multiple conveying sprockets (422), a driving chain (423), and a driving motor (424). A portion of the driving sprockets (421) are coaxially fixed with each of the conveying rollers (411), and another portion of the driving sprockets (421) are coaxially fixed with each of the adhesive rollers (412). Each of the conveying sprockets (422) is rotatably mounted on the adhesive mounting table (1). The driving chain (423) is sequentially wound around each of the driving sprockets (421) and each of the conveying sprockets (422). The driving motor (424) is fixedly mounted on the adhesive mounting table (1) and is used to drive one of the driving sprockets (421) or one of the conveying sprockets (422) to rotate.

5. The novel adhesive applicator according to claim 4, characterized in that: The drive component (42) further includes at least two iron removal modules (425), at least one of the iron removal modules (425) being located between the adhesive application component (2) and a roll assembly (3) for unwinding and for removing iron from the drive chain (423), and at least one of the iron removal modules (425) being located between the adhesive application component (2) and a roll assembly (3) for winding and for removing iron from the drive chain (423).

6. The novel adhesive applicator according to claim 1, characterized in that: The conveying assembly (4) further includes at least two sets of tension swing rod components (44), at least one set of tension swing rod components (44) tensions the foil unwound by the roll assembly (3), and at least one set of tension swing rod components (44) tensions the foil wound by the roll assembly (3).

7. The novel adhesive applicator according to claim 6, characterized in that: The tension swing arm component (44) includes a tensioning cylinder (441) and a tensioning wheel (442). The tensioning cylinder (441) is disposed on the adhesive application table (1). The piston rod of the tensioning cylinder (441) is fixedly connected to the adhesive application table (1). The cylinder body of the tensioning cylinder (441) is slidably fitted to the adhesive application table (1). The tensioning wheel (442) is rotatably disposed on the cylinder body of the tensioning cylinder (441). The foil is wound around the tensioning wheel (442).

8. A novel adhesive applicator according to claim 6, characterized in that: The conveying assembly (4) further includes a tension detection module (45), which is set on the adhesive application table (1) and used to detect the tension of the foil, and feeds back the detection result to the tension swing arm component (44).

9. The novel adhesive applicator according to claim 1, characterized in that: The conveying assembly (4) further includes at least one pressing component (46), which is used to press the foil onto a conveying roller (411). The pressing component (46) includes a pressing cylinder (461) and a pressing wheel (462). The pressing cylinder (461) is fixedly mounted on the adhesive application table (1), and the pressing wheel (462) is rotatably mounted on the piston rod of the pressing cylinder (461).

10. A novel adhesive applicator according to claim 1, characterized in that: The roll assembly (3) includes a roll base (31) and a roll roller (32). The roll base (31) is fixedly mounted on the adhesive application table (1), and the roll roller (32) is rotatably mounted on the roll base (31). The foil is wound or unwound by the roll roller (32).

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