Battery aluminum plastic film double folding machine

Abstract

The utility model discloses a battery aluminium plastic film second -time edge folding machine, including primary edge folding device and second -time edge folding device, primary edge folding device includes first rack, first upper pressure plate, first lower pressure plate, first folding knife, first jacking drive mechanism and first folding knife drive mechanism, first jacking drive mechanism drives first lower pressure plate, and first folding knife drive mechanism drives first folding knife, and second -time edge folding device includes second rack, second upper pressure plate, second lower pressure plate, second folding knife, second lower pressure drive mechanism, second folding knife drive mechanism and second jacking drive mechanism, second lower pressure drive mechanism drives second upper pressure plate, and second folding knife drive mechanism drives second folding knife, and the first jacking stroke of second jacking drive mechanism drives second lower pressure plate to be close to second upper pressure plate, and the second jacking stroke of second jacking drive mechanism drives the aluminium plastic film second -time bending after flattening. The utility model can reduce the damage of electric core, and the edge folding precision is high, and the assembly debugging is simple, and the cost is low.

Description

Technical Field

[0001] This utility model relates to a battery production equipment, and more particularly to a battery aluminum-plastic film secondary folding machine. Background Technology

[0002] Existing battery aluminum-plastic film folding machines generally use roller folding structures to fold the aluminum-plastic film. However, roller folding structures have the following drawbacks: the folding angle is limited, resulting in relatively thin edges on the parts; after prolonged operation, the roller edges become sharp, easily damaging the battery cells; the folding angle is determined by the folding rollers, and the parts are formed in one pass, making angle adjustment impossible; the folding effect depends on the processing precision of multiple folding rollers, leading to high control costs and unstable forming results; all individual folding rollers need to be aligned to the same reference plane, and their angles require fine-tuning, resulting in high installation and debugging time costs and difficulty in controlling the debugging effect. Based on these problems with roller folding, it is necessary to provide a folding machine without a roller folding structure. Utility Model Content

[0003] The purpose of this invention is to provide a secondary folding machine for aluminum-plastic film of batteries that can reduce cell damage, achieve high folding accuracy, be easy to assemble and debug, and have low cost.

[0004] To achieve the above objectives, the present invention provides a battery aluminum-plastic film secondary folding machine comprising a primary folding device and a secondary folding device. The primary folding device includes a first frame and a first upper pressure plate, a first lower pressure plate, a first folding blade, a first lifting drive mechanism, and a first folding blade drive mechanism disposed on the first frame. The first upper pressure plate and the first lower pressure plate are respectively arranged upwards and downwards. The first lifting drive mechanism drives the first lower pressure plate to approach the first upper pressure plate to clamp the aluminum-plastic film with the first upper pressure plate. The first folding blade drive mechanism drives the first folding blade to approach the first upper pressure plate to bend the aluminum-plastic film in one pass. The movement direction of the first folding blade is the same as the movement direction of the first lower pressure plate. The directions intersect; the secondary folding device includes a second frame and a second upper pressure plate, a second lower pressure plate, a second folding knife, a second lower pressure drive mechanism, a second folding knife drive mechanism, and a second lifting drive mechanism disposed on the second frame; the second upper pressure plate and the second lower pressure plate are respectively disposed upwards and downwards; the second lower pressure drive mechanism drives the second upper pressure plate to move closer to or away from the second lower pressure plate, and the second folding knife drive mechanism drives the second folding knife to move closer to the second lower pressure plate to provide bending support for the aluminum-plastic film; the second lifting drive mechanism has a first lifting stroke and a second lifting stroke, the first lifting stroke of the second lifting drive mechanism drives the second lower pressure plate to move closer to the second upper pressure plate to flatten the aluminum-plastic film that has been bent once; the second lifting stroke of the second lifting drive mechanism drives the flattened aluminum-plastic film to bend a second time.

[0005] This invention employs a primary folding device. First, a first upper pressure plate and a first lower pressure plate clamp the battery aluminum-plastic film. Then, a first folding blade drive mechanism drives the first folding blade to approach the first upper pressure plate, thus bending the aluminum-plastic film in one step. A secondary folding device is then incorporated. First, a second upper pressure plate and a second lower pressure plate flatten the bent aluminum-plastic film. Then, a second folding blade provides a bending support point for the aluminum-plastic film, and the second lower pressure plate continues to bend the film a second time, achieving a complete edge fold. This invention utilizes the first and second folding blades for folding, eliminating the need for a roller folding mechanism. This prevents damage to the battery cell from sharp roller edges. Furthermore, the cooperation between the first folding blade and the first upper pressure plate ensures more accurate and precise folding of the aluminum-plastic film. In addition, unlike rollers, the first and second folding blades do not require multiple sets to be adjusted to the same reference plane, nor do they require fine-tuning of the angles of multiple folding wheels to achieve uniformity. Using folding blades simplifies installation and debugging, reduces time costs, improves debugging results, and lowers production costs.

[0006] Preferably, the first frame includes a first upper frame, a first lower frame, and a lifting bracket. The first upper pressure plate is disposed on the first upper frame, and the lifting bracket is slidably and vertically disposed on the first lower frame. The first lower pressure plate, the first folding blade, and the first folding blade driving mechanism are disposed on the lifting bracket, and the first lifting driving mechanism is disposed on the first lower frame and drives the lifting bracket to move up and down. By configuring the first upper frame, the first lower frame, and the lifting bracket, the position of the first lower pressure plate is adjustable, thereby enabling the first lower pressure plate and the first upper pressure plate to clamp the aluminum-plastic film together.

[0007] Preferably, the end of the first upper pressure plate facing the first lower pressure plate has a bent structure, with the bending direction facing one side of the first folding blade. By bending the lower end of the first upper pressure plate, the bent part can cooperate with the first folding blade to achieve the purpose of bending the aluminum-plastic film in one step. This eliminates the need for bending with rollers, simplifies the structure, and makes installation and debugging easier.

[0008] Preferably, the surface of the bending structure is inclined downwards from the inside to the outside. This allows it to cooperate with the first folding blade to ensure that the aluminum-plastic film is bent at a large angle in one go, facilitating secondary bending and forming, thereby reducing the number of bends.

[0009] Preferably, the single-bending device further includes a folding blade angle adjustment mechanism, which is disposed on the lifting bracket to adjust the angle between the first folding blade and the first upper pressure plate. By providing the folding blade angle adjustment mechanism, the angle of the first folding blade can be adjusted, thereby allowing the aluminum-plastic film to be bent to different angles in a single bending operation, improving the applicability of the equipment.

[0010] Specifically, the folding knife angle adjustment mechanism includes an adjustment platform and an adjustment cylinder. The adjustment platform is rotatably mounted on the lifting bracket, and the adjustment cylinder is mounted on the lifting bracket with its output end connected to one side of the adjustment platform to drive the adjustment platform to rotate around the rotation center.

[0011] Specifically, the single-folding device further includes a buffer mechanism, which is disposed between the first folding blade and the first folding blade driving mechanism. The buffer mechanism can prevent excessive pressure between the first folding blade and the first upper pressure plate, thereby protecting the equipment and the aluminum-plastic film.

[0012] Specifically, the buffer mechanism includes a connector and a buffer. One end of the connector is connected to the end of the first folding knife, and the buffer is connected between the connector and the adjustment table.

[0013] Specifically, the single-folding device further includes a first translation drive mechanism. The first lower frame is slidably disposed relative to the first upper frame along a length direction perpendicular to the first folding blade, and the first translation drive mechanism drives the first lower frame to move. This allows for convenient adjustment of the position of the first lower pressure plate, improving the ease and accuracy of adjustment.

[0014] Preferably, the secondary folding device further includes a second translation drive mechanism, which drives the second frame to move along a length direction perpendicular to the second folding blade. By providing the second translation drive mechanism, the horizontal position during the secondary bending can be easily adjusted, thereby enabling the secondary folding device to be accurately aligned with the primary folding device, improving the convenience and accuracy of position adjustment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the battery aluminum-plastic film secondary folding machine of this utility model.

[0016] Figure 2 This is a rear view of the battery aluminum-plastic film secondary folding machine of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the primary folding device of the secondary folding machine for battery aluminum-plastic film of this utility model.

[0018] Figure 4 This is a side view of the primary folding device of the secondary folding machine for aluminum-plastic film batteries according to this utility model.

[0019] Figure 5 yes Figure 4 An enlarged view of part A.

[0020] Figure 6This is a three-dimensional structural diagram of the secondary folding device of the battery aluminum-plastic film secondary folding machine of this utility model.

[0021] Figure 7 This is a side view of the secondary folding device of the battery aluminum-plastic film secondary folding machine of this utility model.

[0022] Figure 8 yes Figure 7 An enlarged view of part B.

[0023] Figure 9 This is a diagram showing the state of one fold of the edge of this utility model.

[0024] Figure 10 This is a state diagram of the secondary folding of this utility model. Detailed Implementation

[0025] To illustrate the technical content, structural features, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] like Figures 1 to 8As shown, the battery aluminum-plastic film secondary folding machine 100 of this utility model is used for folding the remaining part of the air bag edge of the battery aluminum-plastic film 200 after precision sealing and cutting. It includes a primary folding device 1 and a secondary folding device 2. The primary folding device 1 includes a first frame 11 and a first upper pressure plate 12, a first lower pressure plate 13, a first folding knife 14, a first lifting drive mechanism 15, and a first folding knife drive mechanism 16 disposed on the first frame 11. The first upper pressure plate 12 and the first lower pressure plate 13 are respectively arranged at the top and bottom. The first lifting drive mechanism 15 drives the first lower pressure plate 13 to approach the first upper pressure plate 12 so as to clamp the aluminum-plastic film 200 with the first upper pressure plate 12. The first folding blade 14 is located on one side of the first lower pressure plate 13. The first folding blade driving mechanism 16 drives the first folding blade 14 to approach the first upper pressure plate 12 to bend the aluminum-plastic film 200 once. The moving direction of the first folding blade 14 intersects the moving direction of the first lower pressure plate 13. Specifically, the first frame 11 includes a first upper frame 111, a first lower frame 112, and a lifting bracket 113. The first upper pressure plate 12 is slidably mounted on the first upper frame 111 via a first sliding seat 17 and a vertical slide rail. The first upper frame 111 is also provided with an adjusting screw 18, through which the height of the first upper pressure plate 12 can be manually adjusted. The lifting bracket 113 is slidably and vertically mounted on the first lower frame 112 via another vertical slide rail. The first lower pressure plate 13, the first folding blade 14, and the first folding blade drive mechanism 16 are mounted on the lifting bracket 113. The first lifting drive mechanism 15 is mounted on the first lower frame 112 and its output end is connected to the lifting bracket 113 to drive the lifting bracket 113 to rise and fall. By setting the first upper frame 111 and the first lower frame 112, the position of the first lower pressure plate 13 is adjustable, thereby enabling the first lower pressure plate 13 and the first upper pressure plate 12 to clamp the aluminum-plastic film together.

[0028] Please see again Figure 4 and Figure 5The first upper pressure plate 12 has a bent structure 121 at one end facing the first lower pressure plate 13, with a bending angle of 90 degrees and a bending direction towards the first folding blade 14. By bending the lower end of the first upper pressure plate 12, the bent portion can cooperate with the first folding blade 14 to achieve the purpose of bending the aluminum-plastic film in one go. This eliminates the need for roller bending, simplifies the structure, and makes installation and debugging easier. Specifically, the surface 121a of the bending structure 121 is inclined downward from the inside to the outside, and the bottom surface 121b of the bending structure 121 is flat. The inclination direction of the surface 121a of the bending structure 121 is 30 degrees to the bottom surface 121b of the bending structure 121. This allows it to cooperate with the first folding blade 14 to ensure that the aluminum-plastic film 200 is bent at a large angle in one go, facilitating secondary bending and forming, thereby reducing the number of bends.

[0029] Please see again Figure 3 The single-folding device 1 further includes a folding blade angle adjustment mechanism 19, which is disposed on the lifting bracket 113 to adjust the angle between the first folding blade 14 and the first upper pressure plate 12. By setting the folding blade angle adjustment mechanism 19, the angle of the first folding blade 14 can be adjusted, thereby allowing the aluminum-plastic film 200 to be bent to different angles in a single bend, improving the applicability of the equipment. Specifically, the folding blade angle adjustment mechanism 19 includes an adjustment platform 191 and an adjustment cylinder 192. The adjustment platform 191 is rotatably disposed on the lifting bracket 113, and the adjustment cylinder 192 is disposed on the lifting bracket 113 with its output end connected to one side of the adjustment platform 191 to drive the adjustment platform 191 to rotate around the rotation center.

[0030] Please see again Figure 3 The single-folding device 1 further includes a buffer mechanism 110, which is disposed between the first folding blade 14 and the first folding blade driving mechanism 16. The buffer mechanism 110 can prevent excessive pressure between the first folding blade 14 and the first upper pressure plate 12, thereby protecting the equipment and the aluminum-plastic film 200. Specifically, the buffer mechanism 110 includes a connector 110a and a buffer 110b. One end of the connector 110a is connected to the end of the first folding blade 14, and the buffer 110b is connected between the connector 110a and the adjusting table 191.

[0031] Please see again Figure 3The single-folding device 1 further includes a first translation drive mechanism 120. The first lower frame 112 is slidably arranged relative to the first upper frame along a length direction perpendicular to the first folding blade 14. The first translation drive mechanism 120 drives the first lower frame 112 to move. This allows for convenient adjustment of the position of the first lower pressure plate 13, improving the convenience and accuracy of adjustment.

[0032] Please see Figures 6 to 8 The secondary folding device 2 includes a second frame 21 and a second upper pressure plate 22, a second lower pressure plate 23, a second folding blade 24, a second lower pressure drive mechanism 25, a second folding blade drive mechanism 26, and a second lifting drive mechanism 27, all mounted on the second frame 21. The second upper pressure plate 22 and the second lower pressure plate 23 are respectively positioned upwards and downwards. The second upper pressure plate 22 is slidably mounted on the second frame 21 via a second sliding seat 28. The second lower pressure plate 23 is slidably mounted on the second frame 21 via a third sliding seat 29. The output end of the second lower pressure drive mechanism 25 is connected to the second sliding seat 28. The second lower pressure drive mechanism 25 drives the second upper pressure plate 22 to move closer to or away from the second lower pressure plate 23, and the second folding blade drive mechanism 26 drives the second folding blade 24 to move closer to the second lower pressure plate 23 to provide bending support for the aluminum-plastic film 200. The second folding blade 24 is located on the side of the second upper pressure plate 22 away from the second frame 21. The second lifting drive mechanism 27 has a first lifting stroke and a second lifting stroke. The output end of the second lifting drive mechanism 27 is connected to the third sliding seat 29. The first lifting stroke of the second lifting drive mechanism 27 drives the second lower pressure plate 23 to approach the second upper pressure plate 22 to flatten the aluminum-plastic film 200 that has been bent once. The second lifting stroke of the second lifting drive mechanism 27 drives the flattened aluminum-plastic film 200 to bend a second time.

[0033] Please see again Figure 6 and Figure 7 The secondary folding device 2 further includes a second translation drive mechanism 210, which drives the second frame 21 to move along a length direction perpendicular to the second folding blade 24. By setting the second translation drive mechanism 210, the horizontal position of the second lower pressure plate 23 during the secondary bending can be easily adjusted, thereby enabling the secondary folding device 2 to be accurately aligned with the primary folding device 1, improving the convenience and accuracy of position adjustment.

[0034] Please see again Figure 5 and Figure 8At least one of the first upper pressure plate 12, the first lower pressure plate 13, the second upper pressure plate 22, and the second lower pressure plate 23 is provided with a heating element 3. In this invention, each of the first upper pressure plate 12, the first lower pressure plate 13, the second upper pressure plate 22, and the second lower pressure plate 23 is provided with a heating element 3. The heating element 3 heats the first upper pressure plate 12, the first lower pressure plate 13, the second upper pressure plate 22, and the second lower pressure plate 23, thereby preheating the aluminum-plastic film 200 before bending, achieving a more efficient and stable folding effect. Furthermore, the integrated preheating eliminates the need for a separate preheating station, saving costs.

[0035] Please see Figure 2 The first lifting drive mechanism 15, the first folding blade drive mechanism 16, the second pressing drive mechanism 25, the second folding blade drive mechanism 26, and the second lifting drive mechanism 27 are all cylinders, and each cylinder is connected to a pressure regulating valve 4. By controlling the cylinders with the pressure regulating valve 4, the output force of the folding edge can be controlled, thereby avoiding excessive compression of the aluminum-plastic film 200 and achieving the purpose of protecting the battery cell.

[0036] In summary and in combination Figure 9 and Figure 10 The working principle of the battery aluminum-plastic film secondary folding machine 100 of this utility model is described in detail below:

[0037] During operation, the precision-cut batteries are transferred to the primary folding device 1 via a clamping and transporting mechanism. The air bag edge of the aluminum-plastic film 200 is placed between the first upper pressure plate 12 and the first lower pressure plate 13. The first upper pressure plate 12 is adjusted with adjusting screws 18 until there is a slight gap between it and the aluminum-plastic film 200, and then fixed in place. Afterwards, the first lifting drive mechanism 15 drives the first lower pressure plate 13 to rise, thereby holding the aluminum-plastic film 200 level with the first upper pressure plate 12, causing the aluminum-plastic film 200 to tilt upwards. Then, the first folding blade 14 is driven by the first folding blade driving mechanism 16 to move closer to the first upper pressure plate 12, thereby making the first folding blade 14 cooperate with the bending structure 121 of the first upper pressure plate 12. Under the mutual pressure of the surface 121a of the bending structure 121 and the plane of the first folding blade 14, the aluminum-plastic film 200 is bent along the surface 121a of the bending structure 121 to a degree between 0 and 179 degrees. In this embodiment, it is bent to 150 degrees. At this time, one fold is completed. Afterwards, the aluminum-plastic film 200 air bag is transferred to the secondary folding device 2 station. At this time, the second upper pressure driving mechanism and the second folding blade driving mechanism 26 drive the second upper pressure plate 22 and the second folding blade 24 to simultaneously approach the aluminum-plastic film 200. Simultaneously, the second lifting drive mechanism 27 initiates its first lifting stroke to drive the second lower pressure plate 23 closer to the aluminum-plastic film 200. Under the pressure of the second upper pressure plate 22 and the second lower pressure plate 23, the bent portion of the aluminum-plastic film 200 during the first bend is flattened. Then, the second upper pressure drive mechanism drives the second upper pressure plate 22 upwards away from the aluminum-plastic film 200, while the second folding blade 24 remains stationary and provides a bending point for the aluminum-plastic film 200. Afterwards, the second lifting drive mechanism 27 initiates its second lifting stroke to push the flattened portion of the aluminum-plastic film 200 upwards for a second bend. At this point, the aluminum-plastic film 200 completes its second bend.

[0038] This invention employs a primary folding device 1. First, the first upper pressure plate 12 and the first lower pressure plate 13 clamp the battery aluminum-plastic film 200. Then, the first folding blade drive mechanism 16 drives the first folding blade 14 to approach the first upper pressure plate 12, thereby bending the aluminum-plastic film 200 once. A secondary folding device 2 is then used. First, the second upper pressure plate 22 and the second lower pressure plate 23 flatten the bent aluminum-plastic film 200. Then, the second folding blade 24 provides a bending support point for the aluminum-plastic film 200, and the second lower pressure plate 23 continues to bend the aluminum-plastic film 200 a second time, thus achieving complete edge folding of the aluminum-plastic film 200. This invention utilizes the first folding blade 14 and the second folding blade 24 for edge folding, eliminating the need for a roller folding mechanism. This prevents damage to the battery cell caused by the sharp edges of the rollers. Furthermore, the cooperation between the first folding blade 14 and the first upper pressure plate 12 ensures more accurate and precise edge folding of the aluminum-plastic film 200. In addition, unlike rollers, the first folding blade 14 and the second folding blade 24 do not require multiple sets to be adjusted to the same reference plane, nor do they require fine-tuning of the angles of multiple folding wheels to achieve uniformity. Using folding blades simplifies installation and debugging, reduces time costs, improves debugging results, and lowers production costs.

[0039] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A secondary folding machine for battery aluminum-plastic film, characterized in that: The device includes a primary folding device and a secondary folding device. The primary folding device includes a first frame and a first upper pressure plate, a first lower pressure plate, a first folding knife, a first lifting drive mechanism, and a first folding knife drive mechanism disposed on the first frame. The first upper pressure plate and the first lower pressure plate are respectively arranged upwards and downwards. The first lifting drive mechanism drives the first lower pressure plate to approach the first upper pressure plate to clamp the aluminum-plastic film with the first upper pressure plate. The first folding knife drive mechanism drives the first folding knife to approach the first upper pressure plate to bend the aluminum-plastic film in one step. The moving direction of the first folding knife intersects the moving direction of the first lower pressure plate. The secondary folding device... The device includes a second frame and a second upper pressure plate, a second lower pressure plate, a second folding blade, a second pressing drive mechanism, a second folding blade drive mechanism, and a second lifting drive mechanism disposed on the second frame. The second upper pressure plate and the second lower pressure plate are respectively arranged upwards and downwards. The second pressing drive mechanism drives the second upper pressure plate to move closer to or away from the second lower pressure plate, and the second folding blade drive mechanism drives the second folding blade to move closer to the second lower pressure plate to provide bending support for the aluminum-plastic film. The second lifting drive mechanism has a first lifting stroke and a second lifting stroke. The first lifting stroke of the second lifting drive mechanism drives the second lower pressure plate to move closer to the second upper pressure plate to flatten the aluminum-plastic film after one bending. The second lifting stroke of the second lifting drive mechanism drives the flattened aluminum-plastic film to bend a second time.

2. The battery aluminum-plastic film secondary folding machine according to claim 1, characterized in that: The first frame includes a first upper frame, a first lower frame, and a lifting bracket. The first upper pressure plate is disposed on the first upper frame. The lifting bracket is slidably and vertically disposed on the first lower frame. The first lower pressure plate, the first folding blade, and the first folding blade driving mechanism are disposed on the lifting bracket. The first lifting driving mechanism is disposed on the first lower frame and drives the lifting bracket to move up and down.

3. The battery aluminum-plastic film secondary folding machine according to claim 1, characterized in that: The end of the first upper pressure plate facing the first lower pressure plate has a bent structure, and the bending direction is towards one side of the first folding knife.

4. The battery aluminum-plastic film secondary folding machine according to claim 3, characterized in that: The surface of the bent structure is inclined downwards from the inside to the outside.

5. The battery aluminum-plastic film secondary folding machine according to claim 2, characterized in that: The single-folding device further includes a folding blade angle adjustment mechanism, which is disposed on the lifting bracket to adjust the angle between the first folding blade and the first upper pressure plate.

6. The battery aluminum-plastic film secondary folding machine according to claim 5, characterized in that: The folding knife angle adjustment mechanism includes an adjustment platform and an adjustment cylinder. The adjustment platform is rotatably mounted on the lifting bracket, and the adjustment cylinder is mounted on the lifting bracket with its output end connected to one side of the adjustment platform to drive the adjustment platform to rotate around the rotation center.

7. The battery aluminum-plastic film secondary folding machine according to claim 6, characterized in that: The single-folding device further includes a buffer mechanism, which is disposed between the first folding knife and the first folding knife driving mechanism.

8. The battery aluminum-plastic film secondary folding machine according to claim 7, characterized in that: The buffer mechanism includes a connector and a buffer. One end of the connector is connected to the end of the first folding knife, and the buffer is connected between the connector and the adjustment table.

9. The battery aluminum-plastic film secondary folding machine according to claim 2, characterized in that: The single-folding device further includes a first translation drive mechanism, wherein the first lower frame is slidably disposed relative to the first upper frame along a length direction perpendicular to the first folding knife, and the first translation drive mechanism drives the first lower frame to move.

10. The battery aluminum-plastic film secondary folding machine according to claim 1, characterized in that: The secondary folding device further includes a second translation drive mechanism, which drives the second frame to move along the length direction perpendicular to the second folding blade.

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