Soft package battery beveling device

Abstract

The utility model relates to the technical field of battery processing equipment, and discloses a corner folding device for a soft package battery. The soft package battery beveling device comprises a base assembly, a positioning assembly and a beveling mechanism, the positioning assembly is arranged on the base assembly, the positioning assembly is used for positioning a soft package battery, the beveling mechanism is arranged on the base assembly, the beveling mechanism comprises a driving assembly and a pressing plate, and the driving assembly is arranged on the base assembly. The pressing plate can abut against a folded edge sharp corner of the soft package battery, and the driving assembly can drive the pressing plate to rotate around a preset axis so as to turn over the folded edge sharp corner. According to the corner folding device for the soft package battery, the folded edge sharp corner of the soft package battery can be inwards turned and downwards pressed, so that the size of the soft package battery is limited in a preset range, and the smooth subsequent assembly of the soft package battery is ensured.

Description

Technical Field

[0001] This utility model relates to the field of battery processing equipment technology, and in particular to a folding device for soft-pack batteries. Background Technology

[0002] The manufacturing process of a soft-pack battery includes steps such as encapsulation, capacity testing, aging, and sorting. The encapsulation step includes sequential processes such as electrolyte injection, secondary sealing, edge trimming, and edge folding and hot stamping, thereby forming folded edges 102 on both sides of the cell body 101 (e.g., ...). Figure 1 (As shown). However, during the capacity testing, aging, and sorting process of the pouch battery 100, the end of the folded edge 102 that extends beyond the cell body 101 may lift up due to the inability to be fixed with tape or the like, forming a sharp corner 103. This results in an increase in the width of the pouch battery 100, affecting the subsequent assembly of the pouch battery 100.

[0003] Therefore, there is an urgent need for a soft-pack battery corner-folding device to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a soft-pack battery corner-folding device that can fold inward and press down the sharp corner of the soft-pack battery to limit the size of the soft-pack battery within a preset range.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The pouch battery corner-folding device includes:

[0007] Base assembly;

[0008] A positioning component is disposed on the base assembly, the positioning component being used to position the soft-pack battery;

[0009] A corner-folding mechanism is provided on the base assembly. The corner-folding mechanism includes a drive assembly and a pressure plate. The pressure plate abuts against the folded edge of the soft-pack battery. The drive assembly can drive the pressure plate to rotate around a preset axis to flip the folded edge.

[0010] As an optional solution, the preset axis is set to be located outside the side where the sharp corner of the folded edge is located, and the angle between the axis and the side is an acute angle.

[0011] As an optional solution, the drive assembly includes a drive source and a rotating wheel, the drive source being used to drive the rotating wheel to rotate, and the pressure plate being connected to the rotating wheel.

[0012] As an alternative, the pressure plate is connected to the eccentric position of the rotating wheel.

[0013] As an alternative, the rotating wheel is a gear, and the drive assembly further includes a rack, which meshes with the gear and is connected to the output end of the drive source, which can drive the rack to reciprocate linearly.

[0014] As an optional solution, the bending mechanism further includes a support assembly, which includes a positioning plate and a side plate. The side plate is connected to the positioning plate, and the gear is rotatably mounted on the side plate. The gear is spaced apart from the positioning plate, and the rack is located between the positioning plate and the gear.

[0015] As an alternative, the gear includes a toothed portion and two end plates, the two end plates being respectively disposed on both sides of the toothed portion along the axial direction, and the rack meshing with the toothed portion and being confined between the two end plates.

[0016] As an optional solution, the bending mechanism further includes a support assembly, the rotating wheel is rotatably mounted on the support assembly, the base assembly is provided with a positioning groove, and the support assembly is confined within the positioning groove.

[0017] As an optional solution, the soft-pack battery corner-folding device includes four sets of corner-folding mechanisms, which are respectively located at the four corners of the positioning component and are used to fold inward and press down the four folded corners of the soft-pack battery.

[0018] As an optional solution, the positioning component includes two sets of stop blocks, which are arranged opposite to each other and are respectively used to abut against the two sides of the soft-pack battery.

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

[0020] This utility model discloses a pouch battery corner-folding device. In use, the pouch battery is first positioned in the positioning assembly. At this point, the pressure plate of the corner-folding mechanism abuts against the sharp corner of the folding edge. Then, the drive mechanism drives the pressure plate to rotate, thereby flipping the sharp corner of the folding edge, folding the outward-folded portion of the pouch battery inward. This ensures that the external dimensions of the pouch battery are within a preset range, thus guaranteeing smooth subsequent assembly. Furthermore, compared to directly pushing the sharp corner horizontally inward to fold it, the pressure plate flipping action includes both inward folding and downward pressing, which matches the folding path of the sharp corner. This avoids excessive localized force in the folding area, preventing damage and reducing the probability of defective products. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a soft-pack battery with folded edges and sharp corners;

[0022] Figure 2This is a schematic diagram of the structure of a soft-pack battery angle-folding device with a soft-pack battery installed according to a specific embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the soft-pack battery corner-folding device provided in a specific embodiment of this utility model;

[0024] Figure 4 yes Figure 2 A partial structural diagram of the soft-pack battery before the sharp corners are folded over;

[0025] Figure 5 yes Figure 2 A partial structural diagram of the soft-pack battery after the sharp corners of the folded edge are turned up.

[0026] Figure 6 This is a schematic diagram of the angle-bending mechanism provided in a specific embodiment of this utility model.

[0027] In the picture:

[0028] 10. Base assembly; 11. Base plate; 12. Pad plate; 121. Positioning groove;

[0029] 20. Positioning component; 21. Stop block assembly; 22. Support plate;

[0030] 30. Folding mechanism; 31. Drive assembly; 311. Drive source; 312. Gear; 3121. Tooth; 3122. End plate; 313. Rack; 32. Pressure plate; 33. Bracket assembly; 331. Positioning plate; 332. Side plate;

[0031] 40. Preset axis;

[0032] 100. Soft-pack battery; 101. Battery cell body; 102. Folded edge; 103. Folded edge sharp corner. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction 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.

[0035] 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.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] This embodiment provides a pouch battery corner folding device, which can fold the sharp corner 103 of the pouch battery 100 inward to prevent the shape of the pouch battery 100 from exceeding the preset range and ensure smooth assembly of the pouch battery 100 in the future.

[0038] The following is an example of how the corner folding device of the soft-pack battery 100 with tabs on both sides is used to fold the sharp corners 103 of the soft-pack battery 100.

[0039] like Figure 1As shown, the pouch battery 100 includes a cell body 101, with two tabs extending from both ends of the cell body 101 along a first direction. The pouch battery 100 includes two large surfaces and two side surfaces (both large surfaces and side surfaces are parallel to the first direction), and folded edges 102 are provided on the two side surfaces. During capacity testing, aging, and sorting processes, the ends of the folded edges 102 extending beyond the cell body 101 may curl up due to the inability to be fixed with tape or the like, forming sharp corners 103. That is, in this embodiment, the pouch battery 100 may have four sharp corners 103.

[0040] like Figures 2-5 As shown, the soft-pack battery corner-folding device includes a base assembly 10, a positioning assembly 20, and a corner-folding mechanism 30. The positioning assembly 20 is disposed on the base assembly 10 and is used to position the soft-pack battery 100. The corner-folding mechanism 30 is disposed on the base assembly 10 and located at the end of the positioning assembly 20 along the first direction. The corner-folding mechanism 30 includes a drive assembly 31 and a pressure plate 32. The pressure plate 32 abuts against the corner 103 of the folded edge 102. The drive assembly 31 can drive the pressure plate 32 to rotate around a preset axis 40. During the rotation, the pressure plate 32 can fold inward and press down on the corner 103, so that the corner 103 folds into the preset range of the outer dimensions of the soft-pack battery 100, ensuring smooth subsequent assembly of the soft-pack battery 100. In addition, compared to the method of directly pushing the folded edge 103 inward horizontally to fold the edge, the flipping action of the pressure plate 32 includes inward flipping and downward pressing. It matches the folding path of the folded edge 103, thereby avoiding excessive local force in the folding area and reducing the probability of defective products.

[0041] like Figure 2 As shown, the soft-pack battery corner-folding device in this embodiment includes four sets of corner-folding mechanisms 30. These four sets of mechanisms 30 are respectively positioned at the four corners of the positioning component 20, so that the four pressure plates 32 of each mechanism abut against the four folded corners 103 of the soft-pack battery 100, thereby folding them inward and pressing down on the four folded corners 103. In other words, after the soft-pack battery 100 is installed into the positioning component 20, the four sets of corner-folding mechanisms 30 can simultaneously fold the four folded corners 103, thereby improving work efficiency. In this embodiment, two corner-folding mechanisms 30 are arranged at each end along the first direction, and the corner-folding mechanisms 30 at both ends are symmetrically arranged. The two corner-folding mechanisms 30 at the same end are arranged symmetrically along the second direction, thereby ensuring that all four folded corners 103 of the soft-pack battery 100 fold inward.

[0042] like Figure 2As shown, the base assembly 10 includes a base plate 11 and a pad 12. A positioning component 20 is mounted on the base plate 11, the pad 12 is mounted on the base plate 11, and a folding mechanism 30 is mounted on the pad 12. Since the positioning component 20 itself has a certain height, after the soft-pack battery 100 is installed inside the positioning component 20, its height relative to the base plate 11 is raised. By mounting the folding mechanism 30 on the pad 12, the height of the pressure plate 32 is ensured to correspond exactly to the height of the folded edge sharp corner 103 of the soft-pack battery 100, thereby ensuring that the folded edge sharp corner 103 is folded smoothly. Optionally, the pad 12 can be mounted on the base plate 11 by any method such as insertion, bonding, or fastener connection; no specific limitation is made here.

[0043] In this embodiment, the base assembly 10 includes two pads 12, which are arranged opposite each other along a first direction. Two sets of bending mechanisms 30 are mounted on each pad 12. Since the two tabs of the pouch battery 100 installed in the positioning assembly 20 are located at the pads 12, in this embodiment, the two pads 12 can be made of insulating material to avoid short circuits in the pouch battery 100 during bending. In other embodiments, the base plate 11 may be made of insulating material, or both the base plate 11 and the pads 12 may be made of insulating material; no specific limitation is made here.

[0044] like Figure 3 As shown, the positioning component 20 includes two sets of stop groups 21, which are arranged along the second direction and positioned opposite each other. The two sets of stop groups 21 abut against the two sides of the soft-pack battery 100 where the folded edges 102 are located. By setting the stop groups 21, the soft-pack battery 100 can be positioned along the second direction, thereby ensuring that the four pressure plates 32 of the four corner-folding mechanisms 30 accurately abut against the corresponding corner 103 of the folded edge, thus ensuring the accuracy of subsequent corner folding.

[0045] In this embodiment, each group of stoppers 21 includes at least two stops, and the stops in the same group of stoppers 21 are spaced apart along the first direction. On the one hand, at least two groups of stoppers 21 form a line extending along the first direction, thus preventing the soft-pack battery 100 from being placed at an angle; on the other hand, the spaced stops save material for the group of stoppers 21, thereby reducing the manufacturing cost of the soft-pack battery folding device; furthermore, the space between two adjacent stops exposes part of the side of the soft-pack battery 100, making it easier to grasp and place the soft-pack battery 100. In other embodiments, each group of stoppers 21 may also be configured as a long strip structure extending along the first direction, which is not specifically limited here.

[0046] like Figure 3As shown, the positioning component 20 also includes a support plate 22, which is mounted on the base plate 11. When installing the pouch battery 100, the larger surface of the pouch battery 100 rests on the support plate 22. By separately setting the support plate 22, it is easier to process a support surface with high flatness, thereby ensuring accurate support posture when the pouch battery 100 is placed in the positioning component 20. Optionally, the support plate 22 can be made of nylon or other materials with low hardness to avoid scratching the surface of the pouch battery 100. Optionally, the support plate 22 can be connected to the base plate 11 by means of bonding, welding, fastener connection, etc., without specific limitations.

[0047] In this embodiment, both sets of stop blocks 21 are connected to the support plate 22, so the entire positioning assembly 20 can form a whole and can be installed on the base plate 11 as a whole, making installation more convenient. In other embodiments, the stop blocks 21 can also be directly installed on the base plate 11 by any of the following methods: bonding, fastener connection, welding, or plugging, without any specific limitation.

[0048] like Figure 1 As shown, along the direction away from the folded edge 102, the area of ​​the outward-turned sharp corner 103 of the folded edge gradually increases. Regarding this, as... Figure 2 and Figure 3 As shown, the preset axis 40 is set to be located outside the side where the corresponding folded edge tip 103 is located, and the angle between the axis and the side is an acute angle. With this setting, when the pressure plate 32 flips, the flipping area of ​​the end of the folded edge tip 103 away from the folded edge 102 will be larger, thereby ensuring that all outwardly folded edge tips 103 are folded within the preset size range of the soft-pack battery 100. Optionally, the specific angle between the preset axis 40 and the first direction can be flexibly set in combination with factors such as the outward folding size of the folded edge tip 103 and the actual size of the soft-pack battery 100, and is not specifically limited here.

[0049] like Figures 4-6 As shown, the bending mechanism 30 also includes a support assembly 33, which is mounted on the base assembly 10. The drive assembly 31 includes a drive source 311 and a rotating wheel. The rotating wheel is rotatably mounted on the support assembly 33. The drive source 311 drives the rotating wheel to rotate, and the pressure plate 32 is connected to the rotating wheel. Therefore, the drive source 311 drives the rotating wheel to rotate, thereby driving the pressure plate 32. In this embodiment, both the drive source 311 and the support assembly 33 are mounted on the pad 12.

[0050] To ensure the accuracy of the extension direction of the preset axis 40 of the pressure plate 32's rotation, the installation position of the bracket assembly 33 must be accurate. For this purpose, as follows... Figure 4 and Figure 5As shown, the base assembly 10 is provided with a positioning groove 121, and the bracket assembly 33 is confined within the positioning groove 121. Through the cooperation between the positioning groove 121 and the bracket assembly 33, the accuracy of the installation position of the bracket assembly 33 can be ensured, thereby ensuring the accuracy of the axis of the rotating wheel installed on the bracket assembly 33, that is, ensuring the accuracy of the extension direction of the preset axis 40.

[0051] In this embodiment, as Figure 6 As shown, the bracket assembly 33 includes a positioning plate 331 and a side plate 332. The side plate 332 is connected to the positioning plate 331, and a rotating wheel is rotatably mounted on the side plate 332. The positioning plate 331 is at least partially inserted into the positioning groove 121. Optionally, the positioning plate 331 and the side plate 332 can be fixed by means of insertion, fastener connection, etc. In this embodiment, the positioning groove 121 is formed on the pad 12, and the positioning plate 331 can be connected to the base plate 11 by fasteners.

[0052] like Figure 5 and Figure 6 As shown, the rotating wheel is a gear 312, and the drive assembly 31 also includes a rack 313. The rack 313 meshes with the gear 312 and is connected to the output end of the drive source 311. The drive source 311 can drive the rack 313 to reciprocate linearly, thereby driving the gear 312 to rotate, and then driving the pressure plate 32 to rotate. Optionally, in this embodiment, the drive source 311 can be a cylinder. Once the output stroke of the cylinder is determined, the transmission angle of the gear 312 is also determined, thus making it easier to control the flipping angle of the pressure plate 32.

[0053] like Figure 6 As shown, gear 312 and positioning plate 331 are spaced apart, and rack 313 is limited between positioning plate 331 and gear 312. The space between gear 312 and positioning plate 331 limits rack 313 in the vertical direction, ensuring reliable meshing between gear 312 and rack 313.

[0054] like Figure 6 As shown, the gear 312 includes a toothed portion 3121 and two end plates 3122. The two end plates 3122 are respectively disposed on both sides of the toothed portion 3121 along the axial direction. The rack 313 meshes with the toothed portion 3121 and is confined between the two end plates 3122. The two end plates 3122 limit the horizontal movement of the rack 313, further ensuring that the gear 312 and the rack 313 always reliably mesh.

[0055] In other embodiments (not shown), the driving source 311 can be a motor, which can directly drive the rotating wheel to rotate, or the motor can drive the rotating wheel to rotate through a reducer, belt or other transmission components. No specific limitation is made here.

[0056] In some embodiments, the pressure plate 32 is connected to an eccentric position on the rotating wheel. It should be noted that the eccentric position means that the pressure plate 32 is located on one side of the rotating wheel's axis of rotation (i.e., the preset axis 40). When the pouch battery 100 is installed in the positioning assembly 20, the pressure plate 32 is located outside the preset axis 40 (i.e., on the side away from the pouch battery 100 along the second direction). After the driving source 311 drives the pressure plate 32 to rotate, the pressure plate 32 rotates to the inside of the preset axis 40, thereby causing the pressure plate 32 to move a greater amount along the second direction during rotation. Therefore, the folded edge sharp corner 103 can be folded over a wider range, ensuring that the folded edge sharp corner 103 is within the preset outer dimension range of the pouch battery 100 after folding.

[0057] In addition, in some cases, the folded edge 102 of the soft-pack battery 100 may come loose. In this case, tape can be used to fix the folded edge 102.

[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. For those skilled in the art, based on the concept of this utility model, there will be changes in the specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this utility model. 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 folding device for a soft-pack battery, characterized in that, include: Base assembly (10); A positioning component (20) is disposed on the base assembly (10), the positioning component (20) being used to position the soft-pack battery; A corner-folding mechanism (30) is provided on the base assembly (10). The corner-folding mechanism (30) includes a drive assembly (31) and a pressure plate (32). The pressure plate (32) can abut against the folded edge (103) of the soft-pack battery. The drive assembly (31) can drive the pressure plate (32) to rotate around a preset axis (40) to flip the folded edge (103).

2. The soft-pack battery corner-folding device as described in claim 1, characterized in that, The preset axis (40) is set to be located outside the side where the folded edge sharp corner (103) is located, and the angle between the axis and the side is an acute angle.

3. The soft-pack battery corner-folding device as described in claim 1, characterized in that, The drive assembly (31) includes a drive source (311) and a rotating wheel. The drive source (311) is used to drive the rotating wheel to rotate. The pressure plate (32) is connected to the rotating wheel.

4. The soft-pack battery corner-folding device as described in claim 3, characterized in that, The rotating wheel is a gear (312), and the drive assembly (31) also includes a rack (313). The rack (313) meshes with the gear (312) and is connected to the output end of the drive source (311). The drive source (311) can drive the rack (313) to reciprocate linearly.

5. The soft-pack battery corner-folding device as described in claim 4, characterized in that, The bending mechanism (30) further includes a support assembly (33), which includes a positioning plate (331) and a side plate (332). The side plate (332) is connected to the positioning plate (331). The gear (312) is rotatably mounted on the side plate (332). The gear (312) is spaced apart from the positioning plate (331). The rack (313) is located between the positioning plate (331) and the gear (312).

6. The soft-pack battery corner-folding device as described in claim 4, characterized in that, The gear (312) includes a tooth (3121) and two end plates (3122), the two end plates (3122) are respectively disposed on both sides of the tooth (3121) along the axial direction, and the rack (313) meshes with the tooth (3121) and is limited between the two end plates (3122).

7. The soft-pack battery corner-folding device as described in claim 3, characterized in that, The bending mechanism (30) further includes a support assembly (33), the rotating wheel is rotatably mounted on the support assembly (33), the base assembly (10) is provided with a positioning groove (121), and the support assembly (33) is confined within the positioning groove (121).

8. The soft-pack battery corner-folding device as described in claim 3, characterized in that, The pressure plate (32) is connected to the eccentric position of the rotating wheel.

9. The soft-pack battery corner-folding device according to any one of claims 1-8, characterized in that, The soft-pack battery corner folding device includes four sets of corner folding mechanisms (30), which are respectively located at the four corners of the positioning component (20) and are used to fold inward and press down the four corners (103) of the soft-pack battery.

10. The soft-pack battery corner-folding device according to any one of claims 1-8, characterized in that, The positioning component (20) includes two sets of stop blocks (21), which are arranged opposite to each other and are respectively used to abut against the two sides of the soft-pack battery.

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