Cell film tearing mechanism

Abstract

The utility model relates to the technical field of energy storage equipment, in particular to a battery cell film tearing mechanism which comprises a working table, a carrying table, a tilting unit and a driving unit. The carrying table and the driving unit are both located on the workbench, and the battery cell is placed on the carrying table parallel to the first direction. The upwarping unit comprises an adhesive part; and the adhesive part is used for adhering the edge of a protective film of the battery cell. The warping unit is connected to the output end of the driving unit, and the driving unit is used for driving the warping unit to move in the first direction. According to the battery cell film tearing mechanism, the driving unit drives the sticky piece of the warping unit to stick the protective film of the battery cell, the mode of digging the protective film can be replaced, the surface of the battery cell is prevented from being scratched or abraded, and the process yield of the battery cell is improved.

Description

Battery cell film peeling mechanism Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to a cell film-tearing mechanism. Background Technology

[0002] The battery cell is the core component of a battery pack. During the actual production process, a protective film is coated on the surface of the cell to protect it during specific processes. After use, the protective film needs to be removed from the cell. Existing film-removing mechanisms typically include a planing component that contacts the edge of the protective film to lift it and tear it off. Because the protective film has a certain degree of adhesion, the planing component can easily cause friction with the cell surface when lifting the edge, resulting in wear and tear. Severe wear can lead to leakage. Summary of the Invention

[0003] The purpose of this invention is to provide a cell film-tearing mechanism that can avoid wear on the cell surface during the film-tearing process.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A battery cell film-peeling mechanism is provided, comprising:

[0006] Workbench;

[0007] A carrier platform is located on the worktable, and the battery cell is placed on the carrier platform parallel to the first direction;

[0008] A lifting unit, the lifting unit including an adhesive component for sticking the edge of the protective film of the battery cell;

[0009] A drive unit is located on the worktable, and the lifting unit is connected to the output end of the drive unit. The drive unit is used to drive the lifting unit to move along the first direction.

[0010] Optionally, the lifting unit further includes a lifting drive, the adhesive element is connected to the output end of the lifting drive, and the lifting drive is used to adjust the distance between the adhesive element and the protective film.

[0011] Optionally, the lifting unit further includes an elastic element, one end of which is connected to the output end of the lifting drive element along its own extension and contraction direction, and the other end is connected to the adhesive element.

[0012] Optionally, the adhesive component includes a support member and an outer ring of adhesive rollers, the rollers being rotatably connected to the support member, and the support member being connected to the output end of the lifting drive member.

[0013] Optionally, it also includes a clamping unit connected to the drive unit for clamping the adhesive protective film.

[0014] Optionally, the driving unit includes a first driving member and a first displacement plate. The first driving member is disposed on the worktable, and the first displacement plate is connected to the output end of the first driving member. The output end of the first driving member can drive the first displacement plate to move along the first direction. The lifting unit and the clamping unit are connected to the first displacement plate.

[0015] Optionally, the driving unit further includes a second driving member, a second displacement plate, a transmission assembly, and a third displacement plate. The second driving member is disposed on the first displacement plate, and the second displacement plate is connected to the output end of the second driving member. The second driving member can drive the second displacement plate to move along the first direction. The transmission assembly is disposed between the second displacement plate and the third displacement plate and is used to drive the third displacement plate to move along a third direction. The lifting unit and the clamping unit are connected to the third displacement plate.

[0016] Optionally, the driving unit further includes a second slide rail and a second slider, the second displacement plate is connected to the second slider, the second slider is slidably engaged with the second slide rail, and the second slide rail extends along the first direction and is disposed on the first displacement plate.

[0017] Optionally, the transmission assembly includes a first rack, a first gear, a second rack, a second gear, and a connecting shaft. The first rack extends along the first direction and is disposed on the first displacement plate. The first gear meshes with the first rack. The second rack extends along the third direction and is disposed on the third displacement plate. The second gear meshes with the second rack. Both the first gear and the second gear are disposed on the connecting shaft, which is rotatably connected to the second displacement plate.

[0018] Optionally, the driving unit includes a rotary driving member disposed on the third displacement plate. The output end of the rotary driving member rotates around a second direction. The lifting unit and the clamping unit are eccentrically connected to the output end of the rotary driving member. One end of the lifting unit along the second direction is connected to the output end of the rotary driving member, and the other end is provided with the adhesive member. The second direction is perpendicular to the first direction and the third direction.

[0019] The beneficial effects of this utility model are:

[0020] This invention provides a battery cell film-removing mechanism, including a worktable, a carrier, a lifting unit, and a driving unit. The carrier and driving unit are both located on the worktable, with the carrier used to hold the battery cell. The lifting unit includes an adhesive component for adhering to the edge of the protective film on the battery cell. The lifting unit is connected to the output end of the driving unit, which drives the lifting unit to move along a first direction. This battery cell film-removing mechanism, by using the driving unit to drive the adhesive component of the lifting unit to adhere to the protective film on the battery cell, replaces the method of planing off the protective film, preventing scratches or wear on the battery cell surface and improving the battery cell manufacturing yield. Attached Figure Description

[0021] Figure 1 is a first-view structural schematic diagram of the cell film-tearing mechanism provided in an embodiment of the present invention;

[0022] Figure 2 is a structural schematic diagram of the cell film-tearing mechanism provided in an embodiment of the present invention from a second perspective.

[0023] Figure 3 is a structural schematic diagram of the cell film-tearing mechanism provided in the embodiment of this utility model from a third perspective;

[0024] Figure 4 is a partial structural schematic diagram of the drive unit provided in an embodiment of the present invention;

[0025] Figure 5 is a structural schematic diagram of the lifting unit and clamping unit provided in the embodiment of this utility model.

[0026] In the picture:

[0027] 1. Worktable; 2. Platform;

[0028] 3. Lifting unit; 31. Adhesive component; 311. Support component; 312. Roller; 32. Lifting drive component; 33. Elastic component;

[0029] 4. Clamping unit; 41. Clamping drive unit; 42. Clamping component; 43. Connecting rod;

[0030] 5. Drive unit; 501. First drive component; 502. First displacement plate; 503. First slide rail; 504. First slider; 505. Second drive component; 506. Second displacement plate; 507. Second slide rail; 508. Second slider; 509. First rack; 510. First gear; 511. Second rack; 512. Second gear; 513. Connecting shaft; 514. Third displacement plate; 515. Rotation drive component; 516. Third slide rail; 517. Support frame; 100. Battery cell. Detailed Implementation

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the drawings, not all of them.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The battery cell is the core component of a battery pack. During the actual production process, a protective film is coated on the surface of the cell to protect it during specific processes. After use, the protective film needs to be removed from the cell. Existing film-removing mechanisms typically include a planing component that contacts the edge of the protective film to lift it and tear it off. Because the protective film has a certain degree of adhesion, the planing component can easily cause friction with the cell surface when lifting the edge, resulting in wear and tear. Severe wear can lead to leakage.

[0035] Therefore, this embodiment provides a cell film-removing mechanism to solve the above problems. This cell film-removing mechanism can avoid wear on the surface of the cell 100 during the film-removing process.

[0036] As shown in Figures 1-5, the cell film-tearing mechanism of this embodiment includes a worktable 1, a carrier 2, a lifting unit 3, a clamping unit 4, and a driving unit 5. It should be noted that in Figure 1, direction ab is the first direction, direction cd is the second direction, and direction ef is the third direction; the first direction, second direction, and third direction are perpendicular to each other. In this embodiment, the cell 100 is placed horizontally, the first and second directions are both horizontal, and the third direction is vertical.

[0037] The stage 2 is located on the worktable 1 and is used to place the battery cell 100. Optionally, a limiting groove is formed on the top surface of the stage 2, and the battery cell 100 is placed in the limiting groove to prevent the battery cell 100 from moving. Optionally, some removable positioning blocks may also be provided on the stage 2 to further fix the position of the battery cell 100 and prevent the battery cell 100 from moving during the process of removing the protective film. The battery cell 100 is placed on the stage 2 parallel to the first direction. Optionally, the length direction of the battery cell 100 is consistent with the first direction.

[0038] The lifting unit 3 includes an adhesive component 31, which is used to adhere the edge of the protective film of the battery cell 100, and a clamping unit 4 is used to clamp the adhered protective film. The driving unit 5 is located on the worktable 1, and the lifting unit 3 and the clamping unit 4 are connected to the output end of the driving unit 5. The driving unit 5 is used to drive the lifting unit 3 and the clamping unit 4 to move to tear off the protective film.

[0039] The cell film-removing mechanism uses an adhesive component 31 to adhere the protective film of the cell 100, then a clamping unit 4 holds the adhered protective film, and a driving unit 5 drives the clamping unit 4 to move, thereby detaching the protective film from the cell 100 and finally tearing it off. It can be seen that this cell film-removing mechanism, by adhering the protective film instead of scraping it off, prevents scratches or wear on the surface of the cell 100, thus improving the process yield of the cell 100.

[0040] As shown in Figure 2, optionally, the driving unit 5 includes a first driving member 501 and a first displacement plate 502. The first driving member 501 is disposed on the worktable 1, and the first displacement plate 502 is connected to the output end of the first driving member 501. The output end of the first driving member 501 can drive the first displacement plate 502 to move along a first direction. The lifting unit 3 and the clamping unit 4 are connected to the first displacement plate 502. It should be noted that the above connection is an indirect connection, that is, the lifting unit 3 and the clamping unit 4 are indirectly connected to the first displacement plate 502 through a number of components. The lifting unit 3 and the clamping unit 4 can move along the first direction under the drive of the first driving member 501, that is, quickly move to one end of the length direction of the battery cell 100, that is, the edge of the protective film, to begin the operation of adhering and peeling the protective film.

[0041] As shown in Figure 1, to guide the movement of the first displacement plate 502, the drive unit 5 may optionally include a first slide rail 503 and a first slider 504. The first displacement plate 502 is connected to the first slider 504 via a support frame 517. The first slider 504 is slidably engaged with the first slide rail 503, which extends along a first direction and is disposed on the worktable 1. Optionally, the first slider 504 is located above the first slide rail 503 and below the support frame 517. That is, the engagement of the first slider 504 and the first slide rail 503 can support the weight of the first displacement plate 502 to a certain extent, ensuring the stable movement of the first displacement plate 502.

[0042] Optionally, in order to facilitate the arrangement of the various components of the drive unit 5, the first drive member 501 is disposed on the side of the first displacement plate 502 away from the battery cell 100.

[0043] Optionally, the drive unit 5 further includes a second drive member 505 and a second displacement plate 506. The second drive member 505 is disposed on the first displacement plate 502, and the second displacement plate 506 is connected to the output end of the second drive member 505. The second drive member 505 can drive the second displacement plate 506 to move along the first direction. The lifting unit 3 and the clamping unit 4 are connected to the second displacement plate 506. It should be noted that the above connection is still an indirect connection, that is, the lifting unit 3 and the clamping unit 4 are indirectly connected to the second displacement plate 506 through a number of components. The lifting unit 3 and the clamping unit 4 can move along the first direction under the drive of the second drive member 505.

[0044] Optionally, in order to facilitate the arrangement of multiple components of the drive unit 5, the second drive member 505 is disposed on the side of the first displacement plate 502 away from the battery cell 100. The first displacement plate 502 is provided with a clearance hole that extends along the first direction. The connecting plate passes through the clearance hole, with one end connected to the output end of the second drive member 505 and the other end connected to the second displacement plate 506.

[0045] Optionally, to guide the movement of the second displacement plate 506, the drive unit 5 further includes a second slide rail 507 and a second slider 508. The second displacement plate 506 is connected to the second slider 508, and the second slider 508 is slidably engaged with the second slide rail 507. The second slide rail 507 extends along a first direction and is disposed on the first displacement plate 502. Optionally, in this embodiment, two first slide rails 503 are spaced apart, and the corresponding two sliders respectively engage with the two slide rails to further improve the stability of the movement of the second displacement plate 506. Furthermore, the engagement of the second slider 508 with the second slide rail 507 can also support the weight of the second displacement plate 506 to a certain extent.

[0046] To achieve simultaneous horizontal movement of the second displacement plate 506 driven by the second driving unit 505, the clamping unit 4 and the lifting unit 3 can also move vertically. This allows the clamping unit 4 to hold one end of the protective film and move synchronously in both the horizontal and vertical directions. After the lifting unit 3 and the clamping unit 4 clamp the protective film at one end of the battery, they move in the first direction while simultaneously moving in the third direction, effectively peeling the protective film off the battery. Optionally, the driving unit 5 also includes a transmission assembly and a third displacement plate 514. The transmission assembly is disposed between the second displacement plate 506 and the third displacement plate 514, and is used to drive the third displacement plate 514 to move vertically.

[0047] Optionally, the transmission assembly includes a first rack 509, a first gear 510, a second rack 511, a second gear 512, and a connecting shaft 513. Specifically, as shown in Figure 4, the first rack 509 extends along a first direction and is disposed on the first displacement plate 502, the first gear 510 meshes with the first rack 509, the second rack 511 extends vertically and is disposed on the third displacement plate 514, the second gear 512 meshes with the second rack 511, and both the first gear 510 and the second gear 512 are disposed on the connecting shaft 513, that is, the first gear 510 and the second gear 512 rotate synchronously. The connecting shaft 513 is rotatably connected to the second displacement plate 506. Optionally, the connecting shaft 513 can be connected to the second displacement plate 506 via a bearing. The connecting shaft 513 moves along the first direction with the second displacement plate 506. During this process, the first gear 510 moves relative to the first rack 509 and rotates, which drives the second gear 512 to rotate synchronously. Under the influence of the second gear 512, the second rack 511 drives the third displacement plate 514 to move relative to the second displacement plate 506 in the vertical direction. That is, the third displacement plate 514 moves synchronously with the battery cell 100 in the first direction and the vertical direction.

[0048] The lifting unit 3 and the clamping unit 4 are connected to the third displacement plate 514. It should be noted that this connection is still indirect; that is, the lifting unit 3 and the clamping unit 4 are still indirectly connected to the third displacement plate 514 via some components. The lifting unit 3 and the clamping unit 4 can move synchronously along the first direction and the vertical direction under the drive of the second driving member 505.

[0049] As shown in Figure 4, optionally, the driving unit 5 further includes a third slide rail 516 and a third slider. The third slide rail 516 extends vertically onto the second displacement plate 506, and the third slider is disposed on the side of the third displacement plate 514 facing the second displacement plate 506. The third slider slides in cooperation with the third slide rail 516 to guide the movement of the third displacement plate 514 in the vertical direction. Optionally, the third slide rail 516 can be configured as a protruding strip with a trapezoidal cross-section, and the short side of the trapezoid is close to the second displacement plate 506. The third slider is correspondingly provided to prevent the third displacement plate 514 from moving away from the second displacement plate 506 in the second direction.

[0050] As shown in Figures 1 and 3, optionally, the driving unit 5 further includes a rotary driving member 515, which is disposed on the third displacement plate 514. The output end of the rotary driving member 515 rotates around the second direction. The lifting unit 3 and the clamping unit 4 are eccentrically connected to the output end of the rotary driving member 515, meaning that the vertical height of the lifting unit 3 and the clamping unit 4 changes as the rotary driving member 515 rotates. One end of the lifting unit 3 along the second direction is connected to the output end of the rotary driving member 515, and the other end is provided with an adhesive member 31. When the adhesive member 31 begins to adhere the protective film, both the lifting unit 3 and the clamping unit 4 are vertically positioned. When the protective film is almost completely removed, the rotary driving member 515 rotates to drive the lifting unit 3 and the clamping unit 4 to be horizontally positioned, as shown in Figure 3. This increases the moving distance of the clamping position of the clamping unit 4, preventing the protective film from still adhering to the end of the battery cell 100 when the film is finally removed.

[0051] As shown in Figure 5, optionally, the lifting unit 3 also includes a lifting drive 32, and the adhesive 31 is connected to the output end of the lifting drive 32. The lifting drive 32 is used to adjust the distance between the adhesive 31 and the protective film. That is, the lifting drive 32 can push the adhesive 31 to approach and contact the protective film, and then drive the adhesive 31 away from the battery cell 100, so that the protective film can be adhered.

[0052] To prevent damage to the outer casing of the battery cell 100 when the adhesive element 31 abuts against it, the lifting unit 3 may optionally include an elastic element 33. One end of the elastic element 33 along its own extension and contraction direction is connected to the output end of the lifting drive element 32, and the other end is connected to the adhesive element 31. Optionally, the elastic element 33 is a spring, and multiple springs are provided. The springs can absorb part of the pressure from the adhesive element 31 to prevent excessive pressure from damaging the battery cell 100.

[0053] Optionally, the adhesive component 31 includes a support component 311 and an outer ring of an adhesive roller 312. The roller 312 is rotatably connected to the support component 311, and the support component 311 is connected to the output end of the lifting drive component 32. Optionally, one end of a spring is connected to the support component 311. Optionally, the rolling axis of the roller 312 is a second direction, and when the lifting unit 3 moves as a whole along a first direction, the roller 312 makes rolling contact with the battery cell 100.

[0054] Optionally, the clamping unit 4 includes a clamping drive 41 and a clamping member 42, wherein the clamping drive 41 drives the two jaws of the clamping member 42 to open or close. Optionally, two clamping units 4 are provided, respectively located on both sides of the lifting unit 3 opposite to each other along the second direction, so as to increase the clamping positions of the protective film and ensure that the protective film can be peeled off stably.

[0055] Optionally, both the clamping unit 4 and the lifting unit 3 are mounted on the connecting rod 43, which extends along the second direction, and one end of the connecting rod 43 is eccentrically connected to the output end of the rotary drive 515.

[0056] Optionally, the lifting drive 32 is a lifting cylinder, and the clamping drive 41 is a clamping cylinder. Optionally, the first drive 501 and the second drive 505 are both linear cylinders, and the rotary drive 515 is a rotary cylinder.

[0057] The working process of the cell film-tearing mechanism is as follows: First, the first driving component 501 drives the lifting unit 3 and the clamping unit 4 to move rapidly to one end of the cell 100 along its length, with the clamping unit 4 in an open / closed state. The lifting driving component 32 drives the adhesive component 31 to approach and contact the protective film, and then the lifting driving component 32 drives the adhesive component 31 away from the cell 100 to adhere one end of the protective film. The clamping cylinder drives the two jaws to approach each other, so that the jaws can clamp the edge of the peeled protective film. Next, under the action of the second driving component, the clamping unit 4 moves simultaneously in the horizontal and vertical directions, and the horizontal movement is towards the other end of the cell 100 along its length, to peel the protective film off the surface of the cell 100. Finally, the rotating driving component 515 drives the clamping unit 4 to rotate the jaws from vertical downwards to horizontal, ensuring that the protective film is completely removed from the cell 100. The film-tearing action is completed, and each unit returns to its initial state.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cell film-peeling mechanism, characterized in that, include: Workbench (1); platform (2), located on the workbench (1), wherein the battery cell (100) is placed on the platform (2) parallel to a first direction; lifting unit (3), wherein the lifting unit (3) includes an adhesive element (31) for adhering to the edge of the protective film of the battery cell (100); A drive unit (5) is located on the workbench (1), and the lifting unit (3) is connected to the output end of the drive unit (5). The drive unit (5) is used to drive the lifting unit (3) to move along the first direction.

2. The cell film-peeling mechanism according to claim 1, characterized in that, The lifting unit (3) further includes a lifting drive (32), the adhesive (31) is connected to the output end of the lifting drive (32), and the lifting drive (32) is used to adjust the distance between the adhesive (31) and the protective film.

3. The cell film-peeling mechanism according to claim 2, characterized in that, The lifting unit (3) also includes an elastic element (33), one end of which is connected to the output end of the lifting drive (32) along its own extension and retraction direction, and the other end is connected to the adhesive element (31).

4. The cell film-peeling mechanism according to claim 2, characterized in that, The adhesive component (31) includes a support component (311) and an outer ring of an adhesive roller (312). The roller (312) is rotatably connected to the support component (311), and the support component (311) is connected to the output end of the lifting drive component (32).

5. The cell film-peeling mechanism according to any one of claims 1-4, characterized in that, It also includes a clamping unit (4), which is connected to the drive unit (5) for clamping the adhesive protective film.

6. The cell film-peeling mechanism according to claim 5, characterized in that, The driving unit (5) includes a first driving member (501) and a first displacement plate (502). The first driving member (501) is disposed on the worktable (1). The first displacement plate (502) is connected to the output end of the first driving member (501). The output end of the first driving member (501) can drive the first displacement plate (502) to move along the first direction. The lifting unit (3) and the clamping unit (4) are connected to the first displacement plate (502).

7. The cell film-peeling mechanism according to claim 6, characterized in that, The driving unit (5) further includes a second driving member (505), a second displacement plate (506), a transmission assembly, and a third displacement plate (514). The second driving member (505) is disposed on the first displacement plate (502), and the second displacement plate (506) is connected to the output end of the second driving member (505). The second driving member (505) can drive the second displacement plate (506) to move along the first direction. The transmission assembly is disposed between the second displacement plate (506) and the third displacement plate (514) and is used to drive the third displacement plate (514) to move along the third direction. The lifting unit (3) and the clamping unit (4) are connected to the third displacement plate (514).

8. The cell film-peeling mechanism according to claim 7, characterized in that, The drive unit (5) further includes a second slide rail (507) and a second slider (508), the second displacement plate (506) is connected to the second slider (508), the second slider (508) is slidably engaged with the second slide rail (507), and the second slide rail (507) extends along the first direction and is disposed on the first displacement plate (502).

9. The cell film-peeling mechanism according to claim 7, characterized in that, The transmission assembly includes a first rack (509), a first gear (510), a second rack (511), a second gear (512), and a connecting shaft (513). The first rack (509) extends along the first direction and is disposed on the first displacement plate (502). The first gear (510) meshes with the first rack (509). The second rack (511) extends along the third direction and is disposed on the third displacement plate (514). The second gear (512) meshes with the second rack (511). The first gear (510) and the second gear (512) are both disposed on the connecting shaft (513). The connecting shaft (513) is rotatably connected to the second displacement plate (506).

10. The cell film-tearing mechanism according to claim 9, characterized in that, The driving unit (5) includes a rotary driving member (515), which is disposed on the third displacement plate (514). The output end of the rotary driving member (515) rotates around a second direction. The lifting unit (3) and the clamping unit (4) are eccentrically connected to the output end of the rotary driving member (515). One end of the lifting unit (3) along the second direction is connected to the output end of the rotary driving member (515), and the other end is provided with the adhesive member (31). The second direction is perpendicular to the first direction and the third direction.

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