A mechanism for wrapping flanges with adhesive for irregularly shaped batteries

Abstract

This utility model belongs to the field of battery cell technology, specifically relating to a mechanism for wrapping flange adhesive on irregularly shaped batteries. It includes a peeling mechanism for tearing off a second release paper; an adhesive application mechanism for attaching the flange adhesive paper (after removing the second release paper) to the front edge of the battery cell; a release paper peeling and adhesive application assembly for peeling off a first release paper and flange adhesive protective film, bending the flange adhesive paper attached to the edge of the battery cell, and wrapping it around the side of the battery cell; and an adhesive application platform for placing the battery cell to be coated and feeding the edges and corners of the battery cell to be coated to the release paper peeling and adhesive application assembly for coating. Compared to existing technologies, this utility model completes the coating operation for irregularly shaped battery cells with high efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of battery cell technology, specifically relating to a device for applying flange adhesive to irregularly shaped battery cells. Background Technology

[0002] In the process of battery cell manufacturing, flange adhesive is usually applied around the battery cell to achieve the anti-collision function.

[0003] However, the existing equipment can only apply flange adhesive to rectangular battery cells, and cannot apply flange adhesive to irregularly shaped battery cells.

[0004] In view of this, the present invention aims to provide a mechanism for wrapping flange adhesive for irregularly shaped batteries, which can realize the function of wrapping anti-collision flange adhesive around the periphery of irregularly shaped battery cells with high efficiency. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a mechanism for wrapping flanges on irregularly shaped batteries. This mechanism can effectively wrap anti-collision flanges around the periphery of irregularly shaped battery cells with high efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mechanism for wrapping flanges with adhesive for irregularly shaped batteries, comprising, from top to bottom, a first release paper, a flange protective film, flange adhesive, and a second release paper; the device includes a frame and at least the following components disposed on the frame:

[0008] A peeling mechanism for tearing off the second release paper;

[0009] An adhesive applicator is used to apply the flange adhesive paper, after the second release paper has been removed, to the front edge of the battery cell.

[0010] Release paper and adhesive wrapping assembly used to peel off the first release paper and flange adhesive protective film, and to bend the flange adhesive attached to the edge of the battery cell and wrap it around the side of the battery cell.

[0011] A coating platform is used to place the battery cells to be coated and to send the edges and corners of the battery cells that need to be wrapped to the release paper and coating assembly for coating.

[0012] As an improvement to the mechanism for wrapping flange adhesive on irregularly shaped batteries according to this utility model, the adhesive-tearing mechanism includes a first rotary cylinder and a first clamping cylinder connected to the first rotary cylinder.

[0013] As an improvement of the mechanism for wrapping flanges of irregularly shaped batteries according to this utility model, the release paper and wrapping assembly includes a wrapping X-axis module, a wrapping Z-axis module disposed on the wrapping X-axis module, and a wrapping assembly and a release paper assembly connected to the wrapping Z-axis module.

[0014] As an improvement to the mechanism for wrapping flange adhesive for irregularly shaped batteries according to this utility model, the release paper assembly includes a second rotary cylinder and a second clamping cylinder driven and connected to the second rotary cylinder.

[0015] As an improvement of the mechanism for wrapping flanges of irregularly shaped batteries according to this utility model, the wrapping assembly includes a first linear guide rail, a second linear guide rail, a wrapping head disposed on the first linear guide rail, and a pressure holding block disposed on the second linear guide rail. The first linear guide rail is disposed on a first L-shaped mounting block, the second linear guide rail is disposed on a second L-shaped mounting block, a first elastic component is disposed between the wrapping head and the first L-shaped mounting block, and a second elastic component is disposed between the pressure holding block and the second L-shaped mounting block.

[0016] As an improvement of the mechanism for wrapping flanges with adhesive for irregularly shaped batteries, the first L-shaped mounting block is disposed on the third linear guide rail, the third linear guide rail is disposed on the side mounting block, the side mounting block and the first L-shaped mounting block are connected by adjusting bolts, and a third elastic component is disposed between the adjusting bolts and the side mounting block.

[0017] As an improvement to the mechanism for wrapping flanges with adhesive for irregularly shaped batteries, the adhesive wrapping head includes several straight-edge wrapping heads and several arc-shaped wrapping heads.

[0018] As an improvement to the mechanism for wrapping flanges with adhesive for irregularly shaped batteries, the straight-edge adhesive wrapping head is provided with a vacuum hole.

[0019] As an improvement to the mechanism for wrapping flanges of irregularly shaped batteries according to this utility model, the arc-shaped wrapping head has a first arc-shaped part that matches the battery cell body and a second arc-shaped part that matches the battery cell flange edge.

[0020] As an improvement of the mechanism for wrapping flanges with adhesive for irregularly shaped batteries, the adhesive wrapping platform includes an adhesive wrapping Y-axis module, an adhesive wrapping R-axis module disposed on the adhesive wrapping Y-axis module, and a piezoelectric cell cylinder. A cell suction plate is disposed on the adhesive wrapping R-axis module.

[0021] Compared with the existing technology, this utility model can automatically tear off the first release paper, the flange adhesive protective film and the second release paper in the flange adhesive tape, and wrap the flange adhesive tape around the side of the battery cell to play a role in preventing impact. Attached Figure Description

[0022] Figure 1 This is a perspective view of the adhesive tape used in this utility model.

[0023] Figure 2 This is an exploded view of the adhesive tape used in this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of an irregularly shaped battery cell according to the present invention.

[0025] Figure 4 for Figure 3 A side view of the irregularly shaped battery cell.

[0026] Figure 5 In order to be in Figure 3 A schematic diagram of the structure after adhesive is applied to the irregularly shaped battery cell.

[0027] Figure 6 In order to be in Figure 4 The diagram shows the structure after the adhesive coating is applied.

[0028] Figure 7 for Figure 6 A magnified structural diagram of part A in the middle.

[0029] Figure 8 This is one of the three-dimensional structural schematic diagrams of this utility model.

[0030] Figure 9 This is the second three-dimensional structural schematic diagram of the present invention.

[0031] Figure 10 This is a three-dimensional structural diagram of the adhesive applicator in this utility model.

[0032] Figure 11 This is one of the three-dimensional structural diagrams of the release paper and adhesive coating assembly in this utility model.

[0033] Figure 12 This is the second three-dimensional structural diagram of the release paper and adhesive coating assembly in this utility model.

[0034] Figure 13 This is a three-dimensional structural diagram of the adhesive-coated component in this utility model.

[0035] Figure 14 This is a side view structural diagram of the adhesive coating component in this utility model.

[0036] Figure 15 This is one of the three-dimensional structural diagrams of the adhesive application platform in this utility model.

[0037] Figure 16 This is the second three-dimensional structural diagram of the adhesive application platform in this utility model.

[0038] Figure 17 This is a three-dimensional structural diagram of the straight-edge wrapping head in this utility model.

[0039] Figure 18 This is a three-dimensional structural diagram of the arc-shaped wrapping head in this utility model. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0041] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0042] This utility model discloses a mechanism for wrapping flange adhesive for irregularly shaped batteries. It is the core component of a device for wrapping flange adhesive for irregularly shaped battery cells. In order to better understand the working principle and beneficial effects of this utility model, the embodiments of this utility model are described in detail in conjunction with the other components of the device. At the same time, the shapes of the flange adhesive paper and the battery cells are also described in detail.

[0043] like Figure 1-2 As shown, from top to bottom, the flange adhesive paper 1 used in this embodiment includes a first release paper 11 (red film release paper), a flange adhesive protective film 12, a flange adhesive 13, and a second release paper 14 (blue film release paper). In this embodiment, the flange adhesive protective film 12 is divided into three sections, and the three sections of the flange adhesive protective film 12 together form a shape that matches the flange adhesive 13. The first release paper 11, the flange adhesive protective film 12, and the second release paper 14 are all provided with tear handles, which facilitates the removal of the three parts later by a film tearing mechanism.

[0044] like Figure 3 As shown, the battery cell used in this embodiment is not a conventional cuboid shape, but an irregularly shaped structure. It has two segments connected by an arc-shaped transition section along one long side, and two L-shaped stepped sections formed along one short side, with the middle portion forming a protrusion. Another arc-shaped transition section connects the two segments along the other long side. The flange adhesive 13 needs to wrap around the two long sides, the aforementioned short side, as well as their bent portions and corners. Figure 4 As shown in the side view of the battery cell, the flange edge 201 of the battery cell 20 is located between the front side 202 of the battery cell and the side side 203 of the battery cell body. The flange adhesive 12 is first applied to the front side 202 of the battery cell, and then bent to wrap around the flange edge 201 and applied to the side side 203 of the battery cell.

[0045] Among them, the structure of the battery cell after applying adhesive is as follows Figure 5 As shown, the battery cell after being coated with adhesive is as follows: Figure 6 As shown, an enlarged view of part A is as follows: Figure 7 As shown, there is an arched protrusion on the flange edge.

[0046] like Figure 8-18 As shown, the device includes a frame 2 and at least the following components mounted on the frame 2 (for providing mounting support for equipment components):

[0047] The adhesive-tearing mechanism 6 is used to tear off the second release paper 14;

[0048] An adhesive applicator 3 is used to apply the flange adhesive paper 1, after the second release paper 14 has been removed, to the front edge of the battery cell.

[0049] Release paper and adhesive wrapping assembly 7 is used to peel off the first release paper 11 and flange adhesive protective film 12 and to bend the flange adhesive 13 attached to the edge of the battery cell and wrap it around the side of the battery cell.

[0050] A coating platform 8 is used to place the battery cells to be coated and to send the edges and corners of the battery cells to be wrapped to the release paper and coating assembly 7 for coating.

[0051] The adhesive-removing mechanism 6 includes a first rotary cylinder 61 and a first clamping cylinder 62 connected to the first rotary cylinder 61. The first clamping cylinder 62 is used to clamp the second release paper 14 of the flange adhesive, and the first rotary cylinder 61 rotates to tear open the second release paper 14, thus moving and removing the second release paper 14 of the flange adhesive.

[0052] The adhesive application mechanism 3 includes a translation Y-axis module 32, a translation X-axis module 33 mounted on the translation Y-axis module 32, a flange adhesive paper suction Z-axis module 34 mounted on the translation X-axis module 33, and a flange adhesive paper suction R-axis module 35 connected to the flange adhesive paper suction Z-axis module 34. The flange adhesive paper suction Z-axis module 34 and flange adhesive paper suction R-axis module 35 respectively control the lifting and rotating of the flange adhesive paper, and the flange adhesive paper suction R-axis module 35 is equipped with an adhesive suction mechanism 36.

[0053] The release paper and adhesive coating assembly 7 includes an adhesive coating X-axis module 71, an adhesive coating Z-axis module 72 disposed on the adhesive coating X-axis module 71, and an adhesive coating assembly 73 and a release paper tearing assembly 74 connected to the adhesive coating Z-axis module 72. The release paper tearing assembly 74 includes a second rotary cylinder 741 and a second clamping cylinder 742 driven by the second rotary cylinder 741. The adhesive coating assembly 73 is driven to perform adhesive coating by the movement of the adhesive coating X-axis module 71 and the adhesive coating Z-axis module 72, which in turn drives the release paper tearing assembly 74 to tear off the three sections of flange adhesive protective film 12 and the second release paper 11. In this embodiment, the release paper and adhesive coating assembly 7 is configured as two sets, which can simultaneously perform adhesive coating operations on the two long sides of the battery cell.

[0054] The adhesive wrapping assembly 73 includes a first linear guide rail 731, a second linear guide rail 732, an adhesive wrapping head 733 disposed on the first linear guide rail 731, and a pressure holding block 734 disposed on the second linear guide rail 732. The first linear guide rail 731 is disposed on a first L-shaped mounting block 735, and the second linear guide rail 732 is disposed on a second L-shaped mounting block 736. A first elastic component 737 is disposed between the adhesive wrapping head 733 and the first L-shaped mounting block 735. The adhesive wrapping head 733 can move along the first linear guide rail 731. The first elastic component 737 can play a buffering role. Specifically, the first elastic component 737 is a spring. A second elastic component 738 is disposed between the pressure holding block 734 and the second L-shaped mounting block 736. The pressure holding block 734 can move along the second linear guide rail 732. The second elastic component 738 can play a buffering role. Specifically, the second elastic component 738 is a spring.

[0055] The first L-shaped mounting block 735 is mounted on the third linear guide rail 739, which is mounted on the side mounting block 7310. The side mounting block 7310 and the first L-shaped mounting block 735 are connected by an adjusting bolt 7311. A third elastic component 7312 is provided between the adjusting bolt 7311 and the side mounting block 7310, thereby adjusting the distance between the adhesive wrapping head 733 and the pressure holding block 734, providing a buffering effect. The adhesive wrapping head 733 includes a straight-edge wrapping head 7331 and an arc-shaped wrapping head 7332. The straight-edge wrapping head 7331 has a vacuum hole 73311, and the arc-shaped wrapping head 7332 has a first arc-shaped portion 73321 that matches the battery cell body and a second arc-shaped portion 73322 that matches the battery cell flange edge. The straight-edge wrapping head 7331 is used to wrap the straight edge of the battery cell, and the arc-shaped wrapping head 7332 is used to wrap the arc-shaped portion of the battery cell.

[0056] In this embodiment, the vacuum hole 7313 of the adhesive wrapping head 733 adsorbs the flange adhesive 12, which can increase friction and improve the adhesive wrapping effect of the long end of the adhesive paper. In this embodiment, there are several adhesive wrapping heads 733, and different sizes can be set according to the length of the flange adhesive 12. The different contour sizes of the adhesive wrapping heads 733 correspond to the flange edge contour and the side contour of the battery cell, respectively. Multiple floating mechanisms are formed by setting elastic components and adjusting screws. The multiple adhesive wrapping heads 733 are connected to the multiple floating mechanisms to adapt to the outer contour of each section of the battery cell. Moreover, the thrust of the adhesive wrapping head can be adjusted to adapt to the difference in the length of the adhesive paper at different positions, ensuring that the pressure is consistent when wrapping each section, thereby ensuring the adhesive wrapping effect.

[0057] The adhesive application platform 8 includes an adhesive application Y-axis module 81, an adhesive application R-axis module 82 mounted on the adhesive application Y-axis module 81, and a cell piezoelectric cylinder 83. The adhesive application R-axis module 82 is equipped with a cell suction plate 84. The shape and size of three sides of the cell suction plate 84 are basically the same as the shape and size of the three sides of the cell.

[0058] In this embodiment, two sets of adhesive-coating platforms 8 are configured, which can simultaneously apply adhesive to both long sides of the battery cell. The adhesive-coating platforms 8 are used to support and hold the battery cell in place. By rotating and moving the battery cell suction plate, the edges and corners of the battery cell that need to be wrapped are precisely delivered to the adhesive-coating head for application.

[0059] The working principle of this utility model is as follows:

[0060] Removal of the second release paper 14: The first clamping cylinder 62 of the adhesive tearing mechanism 6 clamps the tearing handle of the second release paper 14, and the first rotating cylinder 61 rotates, thereby tearing off the second release paper 14.

[0061] Adhesive application: The adhesive paper is applied to the battery cell on the adhesive application platform 8 by the adhesive suction mechanism 37 of the adhesive application mechanism 3. When applying the adhesive, the side where the flange adhesive 13 is located faces the front edge of the battery cell, and the first release paper 11 is located on the outermost side.

[0062] Removal of the first release paper 11 and the flange adhesive protective film 12: The release paper removal assembly 74 sequentially clamps the first release paper 11 and the flange adhesive protective film 12 on the battery cell after the adhesive coating is completed, and removes them by rotation.

[0063] Glue application: The battery cell is pressed down by the cell-pressing cylinder 83, and the edges and corners of the battery cell to be wrapped are precisely delivered to the glue-applying head 733 for glue application and pressure maintenance by rotating and moving the battery suction plate 84. The glue application principle of this invention is as follows: The flange adhesive 13 is first applied to the front of the battery cell in a flat state, with the flange adhesive 13 to be wrapped hanging outside the flange edge 201 of the battery cell. Then, the glue-applying head 733 rubs the flange adhesive 13 downward, causing the flange adhesive 13 hanging outside the flange edge of the battery cell to bend downward. When the glue-applying head 733 rubs the adhesive paper and moves down to below the flange edge, it stops moving downward. Then, it horizontally pushes the flange adhesive 13 towards the side of the battery cell body. The bent flange adhesive 13 adheres to the side of the battery cell body, completing the glue application. Among them, the straight edges of the battery cell are wrapped with glue using the straight edge wrapping head 7331, and the arc edges of the battery cell are wrapped with glue using the arc wrapping head 7332.

[0064] It should be noted that in this invention, since the flange protective film 12 is divided into multiple segments, in actual operation, one segment of the flange protective film 12 is torn off, one segment of adhesive is wrapped, and then the flange protective film 12 is torn off again and then adhesive is wrapped again.

[0065] Although this embodiment only provides the structure of one irregularly shaped battery cell, this invention can be applied to the coating of irregularly shaped batteries of different shapes, only requiring adjustment of the arrangement and shape of the coating heads.

[0066] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and structure of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanism for wrapping flange adhesive around irregularly shaped batteries, characterized in that: From top to bottom, the flange adhesive paper includes a first release paper, a flange adhesive protective film, flange adhesive, and a second release paper. The mechanism includes a frame and at least the following components disposed on the frame: A peeling mechanism for tearing off the second release paper; An adhesive applicator is used to apply the flange adhesive paper, after the second release paper has been removed, to the front edge of the battery cell. Release paper and adhesive wrapping assembly used to peel off the first release paper and flange adhesive protective film, and to bend the flange adhesive attached to the edge of the battery cell and wrap it around the side of the battery cell. A coating platform is used to place the battery cells to be coated and to send the edges and corners of the battery cells that need to be wrapped to the release paper and coating assembly for coating.

2. The mechanism for wrapping flange adhesive around irregularly shaped batteries according to claim 1, characterized in that: The adhesive-removing mechanism includes a first rotary cylinder and a first clamping cylinder connected to the first rotary cylinder.

3. The mechanism for wrapping flange adhesive around irregularly shaped batteries according to claim 1, characterized in that: The release liner and adhesive coating assembly includes an adhesive coating X-axis module, an adhesive coating Z-axis module disposed on the adhesive coating X-axis module, and an adhesive coating assembly and a release liner assembly connected to the adhesive coating Z-axis module.

4. The mechanism for wrapping flange adhesive around irregularly shaped batteries according to claim 3, characterized in that: The release paper assembly includes a second rotary cylinder and a second clamping cylinder that is driven to the second rotary cylinder.

5. The mechanism for wrapping flange adhesive for irregularly shaped batteries according to claim 3, characterized in that: The adhesive coating assembly includes a first linear guide rail, a second linear guide rail, an adhesive coating head disposed on the first linear guide rail, and a pressure holding block disposed on the second linear guide rail. The first linear guide rail is disposed on a first L-shaped mounting block, the second linear guide rail is disposed on a second L-shaped mounting block, a first elastic component is disposed between the adhesive coating head and the first L-shaped mounting block, and a second elastic component is disposed between the pressure holding block and the second L-shaped mounting block.

6. The mechanism for wrapping flange adhesive around irregularly shaped batteries according to claim 5, characterized in that: The first L-shaped mounting block is mounted on the third linear guide rail, the third linear guide rail is mounted on the side mounting block, the side mounting block and the first L-shaped mounting block are connected by adjusting bolts, and a third elastic component is provided between the adjusting bolts and the side mounting block.

7. The mechanism for wrapping flange adhesive around irregularly shaped batteries according to claim 5, characterized in that: The coating head includes several straight-edged coating heads and several rounded coating heads.

8. The mechanism for wrapping flange adhesive for irregularly shaped batteries according to claim 7, characterized in that: The straight-edge wrapping head is provided with a vacuum hole.

9. The mechanism for wrapping flange adhesive around irregularly shaped batteries according to claim 7, characterized in that: The arc-shaped wrapping head has a first arc-shaped portion that matches the battery cell body and a second arc-shaped portion that matches the battery cell flange edge.

10. The mechanism for wrapping flange adhesive around irregularly shaped batteries according to claim 1, characterized in that: The adhesive application platform includes an adhesive application Y-axis module, an adhesive application R-axis module mounted on the adhesive application Y-axis module, and a piezoelectric cell cylinder. The adhesive application R-axis module is equipped with a cell suction plate.

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