Battery edge and corner folding mechanism

Abstract

The utility model relates to the technical field of battery production, in particular to a battery edge and corner folding mechanism. The battery edge folding and angle folding mechanism comprises a discharging device, an edge folding device and an angle folding device, and the edge folding device and the angle folding device are arranged beside the discharging device; the discharging device comprises a discharging jig for placing the battery, and the discharging jig can pass through the edge folding device and the angle folding device; the edge folding device comprises a first clamp and a roller, the roller can press the battery, and the first clamp can clamp the corner of the battery; the beveling device comprises a second clamp and a beveling block, the second clamp can extrude the corner position of the battery, and the beveling block can press the battery. The roller rolls the edge of the battery, the first clamp clamps and pinches the corner of the battery, the second clamp extrudes the corner of the battery, and the corner folding block presses the corner of the battery. By means of the design, the corners of the battery can be smoothly folded on the battery, the aluminum plastic film is prevented from rebounding, the folding quality is better, and the aluminum plastic film can be prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery edge and corner folding mechanism. Background Art

[0002] Soft-pack lithium batteries are just liquid lithium-ion batteries covered with a polymer shell. They are structurally packaged with aluminum-plastic film. In the event of a safety hazard, the soft-pack battery will only bulge and crack. During production, the outside of the soft-pack battery is covered with aluminum-plastic film, and then the aluminum-plastic film needs to be folded to form a cube to meet assembly requirements. Some soft-pack battery corner folding equipment on the market uses roller pressing to fold the corners, but the aluminum-plastic film has a certain amount of rebound, so the aluminum-plastic film is relatively loose at the folding position and is easy to spread, affecting the folding quality.

[0003] For example, Chinese patent application number: CN202022288262.6 discloses an automatic corner folding device for soft-pack batteries, including a support plate mechanism, a clamping plate mechanism for clamping the soft-pack batteries is arranged on both sides of the support plate mechanism, and roller mechanisms are respectively arranged at the four corners of the soft-pack batteries on the support plate mechanism, and the roller mechanism includes a movable movable base, a lower corner folding part arranged on the movable base, and an upper corner folding part arranged on the lower corner folding part, and a corner folding gap is formed between the upper corner folding part and the lower corner folding part. It adopts the rolling method to fold the corners, which makes the folding position of the aluminum-plastic film loose and easy to spread, affecting the folding quality. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art, and its main purpose is to provide a battery edge and corner folding mechanism, which can effectively prevent the aluminum-plastic film from loosening and improve the corner folding quality, thereby overcoming the shortcomings of the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The present application provides a battery edge folding and corner folding mechanism, comprising a material discharging device, an edge folding device, and a corner folding device, wherein the edge folding device and the corner folding device are arranged on the side of the material discharging device;

[0007] The discharge device includes a discharge jig for placing batteries, and the discharge jig can pass through the edge folding device and the corner folding device;

[0008] The folding device includes a first clamp and a roller, the roller can be pressed toward the battery, and the first clamp can pinch the corners of the battery;

[0009] The corner folding device includes a second clamp and a corner folding block, wherein the second clamp can press the corner position of the battery, and the corner folding block can press toward the battery.

[0010] Preferably, the discharge device further comprises a turntable, and a plurality of the discharge jigs are arranged on the turntable; the discharge jig comprises a first discharge fixture, and the first discharge fixture is provided with a first driving block, and the first driving block can drive the first discharge fixture to open or close.

[0011] Preferably, a clamping mechanism is provided on the lower side of the turntable, and an output end of the clamping mechanism is connected to a driving block of the first unloading fixture.

[0012] Preferably, the folding device further comprises a first linear module, a first fixing rod and a second linear module, the roller is arranged in the first linear module, the first clamp is arranged in the second linear module, and the first fixing rod can press toward the battery in the discharge fixture.

[0013] Preferably, the first linear module is provided with a first mounting frame; the support wheel, the insulating seat, and the roller are arranged on the mounting frame; the support wheel can roll on the first mounting frame; the guide seat with first inclined surfaces on the left and right is arranged on the insulating seat and is located on the upper side or the lower side of the roller.

[0014] Preferably, the angle between the left and right first inclined surfaces is between 5-25°, and the wheel width of the roller is between 4-8 mm.

[0015] Preferably, the folding device further comprises a third linear module and a second mounting frame, and the second clamp and the second fixing rod are arranged on the second mounting frame; the second fixing rod can be pressed toward the battery.

[0016] Preferably, the second mounting frame is further provided with a positioning block which can be supported on the rear of the battery, and the positioning block is provided with a first contoured groove adapted to the rear of the battery.

[0017] Preferably, the corner blocks have two pieces, and at least one piece is insulated; and the corner blocks are provided with guiding notches.

[0018] Preferably, a second inclined surface is provided on the clamping head of the second clamp, and the second inclined surface can be pressed on the corner of the battery; the inclination angle of the second inclined surface is between 35° and 55°.

[0019] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that the battery is placed in the material discharge fixture; then the material discharge fixture moves to the folding device, the roller rolls the edge of the battery, and the first clamp pinches the corners of the battery so that the corners take shape; then the material discharge fixture moves to the folding device, and the second clamp squeezes the corners of the battery so that the corners are further attached to the battery; finally, the folding block presses the corners of the battery so that the corners are completely attached to the battery. This design allows the corners of the battery to be folded smoothly on the battery, preventing the aluminum-plastic film from spreading, not only improving the folding quality, but also preventing the aluminum-plastic film from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of a folding device according to an embodiment of the utility model.

[0022] Figure 3 It is an exploded schematic diagram of the corner folding device of an embodiment of the utility model.

[0023] Figure 4 It is a schematic diagram of a partial corner folding device of an embodiment of the utility model.

[0024] Figure 5 It is a schematic diagram of the connection between the clamping mechanism and the first material unloading fixture of an embodiment of the utility model.

[0025] Figure 6 It is a schematic diagram of the roller assembly of an embodiment of the utility model.

[0026] Description of the accompanying drawings:

[0027] 10. Discharging device; 11. Turntable; 12. Battery; 110. Discharging fixture; 111. First discharging fixture; 112. First driving block; 113. Clamping mechanism; 20. Folding device; 21. First fixture; 22. First mounting frame; 23. First linear module; 24. First fixing rod; 25. Second linear module; 26. Mounting seat; 27. Roller; 28. Support wheel; 210. Insulating seat; 211. Guide seat; 212. First inclined plane; 30. Folding device; 31. Third linear module; 32. Second mounting frame; 33. Second fixture; 34. Folding block; 35. Second fixing rod; 36. Positioning block; 37. Guide notch; 38. Second inclined plane. DETAILED DESCRIPTION

[0028] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0029] Please refer to Figures 1 to 6 As shown, it shows the specific structure of the preferred embodiment of the utility model, which is a battery folding and corner folding mechanism.

[0030] Among them, the first clamp 21 and the roller 27 of the folding device 20 make the corners of the battery 12 take shape; the second clamp 33 of the folding device 30 makes the corners further close to the battery 12, and the folding block 34 presses against the corners of the battery 12, so that the corners are completely fitted with the battery 12, and the folding quality is better.

[0031] The present application provides a battery 12 shaping mechanism, including a discharge device 10, a folding device 20, and a folding device 30, wherein the folding device 20 and the folding device 30 are arranged on the side of the discharge device 10; the discharge device 10 includes a discharge fixture 110 for placing the battery 12, and the discharge fixture 110 can pass through the folding device 20 and the folding device 30; the folding device 20 includes a first clamp 21 and a roller 27, the roller 27 can press against the battery 12, and the first clamp 21 can pinch the corners of the battery 12; the folding device 30 includes a second clamp 33 and a folding block 34, the second clamp 33 can squeeze the corner position of the battery 12, and the folding block 34 can press against the battery 12. The discharge fixture 110 is used to place the battery 12, and the discharge fixture 110 can clamp the battery 12. During operation: 1. The battery 12 is placed in the discharge fixture 110, and the discharge fixture 110 clamps the battery 12. 2. The discharge fixture 110 moves to the folding device 20, and the roller 27 rolls the edge of the battery 12 from top to bottom (or from bottom to top), so that the edge of the battery is bent at a certain angle. 3. The first clamp 21 pinches the corners of the battery 12, and the corners of the battery 12 will be bent inward at a certain angle, so that the corners of the battery 12 are initially formed. 4. The discharge fixture 110 moves to the folding device 30. When the second clamp 33 is closed, the second inclined surface 38 of the clamp of the second clamp 33 is pressed on the corners of the battery 12, so that the corners of the battery 12 will be further attached to the battery 12, which is conducive to the next step of molding. At the same time, the second inclined surface 38 can also prevent the aluminum-plastic film from breaking. 5. The folding block cylinder drives the folding block 34 to press against the battery 12, and the folding corner of the battery 12 is completely attached to the battery 12. After multiple preforming, the corner folding block 34 is finally pressed together to prevent the aluminum-plastic film from rebounding and loosening, and the corner folding quality is better.

[0032] Please refer to Figure 4 As shown, the second inclined surface 38 of the clamp of the second clamp 33 can be pressed on the corner of the battery 12; the inclination angle of the second inclined surface 38 is between 35° and 55°. The inclination angle of the second inclined surface 38 refers to the angle between the horizontal plane and the second inclined surface 38, and the inclination angle can be any value among 35°, 40°, 45°, 50°, and 55°. The second inclined surface 38 can be pressed smoothly on the battery 12, and the quality of the folded corner is better guaranteed.

[0033] Preferably, the material discharge device 10 further comprises a turntable 11, and a plurality of material discharge jigs 110 are arranged on the turntable 11; the material discharge jig 110 comprises a first material discharge fixture 111, and a first driving block 112 is arranged on the first material discharge fixture 111, and the first driving block 112 can drive the first material discharge fixture 111 to open or close. A clamping mechanism 113 is arranged on the lower side of the turntable 11, and the output end of the clamping mechanism 113 is connected to the driving block 112 of the first material discharge fixture 111. The turntable 11 is driven by a servo motor to rotate. A plurality of material discharge jigs 110 are arranged at equal angles on the turntable 11. The first material discharge fixture 111 is released or closed by the first driving block 112. The clamping mechanism 113 of this embodiment is preferably a cylinder, and the output end of the cylinder is connected to the first driving block 112 to drive the first material discharge fixture 111 to move. The first material discharge fixture 111 of this embodiment is preferably a stretching fixture. The opening of the first discharge fixture 111 is adjustable and can accommodate batteries of different sizes.

[0034] Preferably, the folding device 20 also includes a first linear module 23, a first fixing rod 24, and a second linear module 25. The roller 27 is arranged in the first linear module 23, the first clamp 21 is arranged in the second linear module 25, and the first fixing rod 24 can press the battery 12 in the discharge fixture 110. The first linear module 23 is arranged in the first mounting frame 22; the support wheel 28 and the roller 27 are arranged in the mounting seat 26; the support wheel 28 can roll on the first mounting frame 22. The first linear module 23 and the second linear module 25 of this embodiment can be a cylinder or a linear module driven by a cylinder, and can also be a linear module driven by a servo motor. The first clamp 21 is driven by the first clamp cylinder to move. The first fixing rod 24 is driven by the first fixing rod 24 cylinder to move up and down. When the folding device 20 is working, the first fixing rod 24 first presses the battery 12 inside the first unloading fixture 111 to ensure that the battery 12 does not loosen; then the roller 27 rolls the edge of the battery 12, and then the first fixture 21 pinches the corners of the battery 12, and the corners of the battery 12 are initially shaped. The support wheel 28 and the roller 27 of this embodiment are opposite, and the support wheel 28 rolls on the first mounting frame 22 to ensure the movement accuracy of the roller 27.

[0035] Please refer to Figure 5As shown, it is of course more preferable that the first linear module is provided with a first mounting frame 22; the support wheel 28, the insulating seat 210, and the roller 27 are arranged on the mounting frame 26; the support wheel 28 can roll on the first mounting frame 22; the guide seat 211 with the first inclined surface 212 on the left and right is arranged on the insulating seat 210, and is located on the upper side or the lower side of the roller 27. The angle between the left and right first inclined surfaces 212 is between 5-25°, and the wheel width of the roller 27 is between 4-8mm. There is a certain gap between the guide seat 211 and the roller 27, and the roller 27 can rotate normally. There is a gap between the first inclined surfaces 212 on the left and right sides of the guide seat 211 and the insulating seat 210. During the rolling, the pole ear can enter the gap to prevent the pole ear from being displaced, and the pole ear can be pre-shaped at the same time. The guide seat 211 in this embodiment is made of insulating material. The angle between the left and right first inclined surfaces 212 can be any value of 5, 10°, 15°, 20°, 25°, which can adapt to tabs of different widths. The wheel width of the roller 27 can be any value of 4mm, 6mm, 7mm, 8mm, which can adapt to batteries of different sizes.

[0036] Preferably, the folding device 30 further includes a third linear module 31 and a second mounting frame 32, and the second clamp 33 and the second fixing rod 35 are arranged on the second mounting frame 32; the second fixing rod 35 can be pressed against the battery 12. The third linear module 31 can be a cylinder, or a cylinder-driven module, or a servo motor-driven module. The second mounting frame 32 is arranged on the third linear module 31, and the third linear module 31 drives the second mounting frame 32 to move up and down. The second clamp 33 is driven by the second clamp cylinder to move. The second fixing rod cylinder drives the second fixing rod 35 to move up and down. When the unloading fixture 110 moves to the folding device 30, the third linear module 31 drives the second mounting frame 32 to move downward, and the second fixing rod 35 presses the battery 12 to prevent it from loosening. Then, the second clamp 33 is closed, and the clamp head of the second clamp 33 squeezes the corners of the battery 12, so that the corners of the battery 12 will be further close to the battery 12.

[0037] Preferably, the second mounting frame 32 is further provided with a positioning block 36 that can be pressed against the rear of the battery 12, and the positioning block 36 is provided with a first profiling groove that matches the rear of the battery 12. When the second mounting frame 32 is lowered to the set position, the positioning block cylinder drives the positioning block 36 to move toward the rear of the battery 12, and when the first profiling groove presses against the rear of the battery 12, the folding block 34 is pressed toward the folding position of the battery 12, so that the battery 12 can be prevented from loosening when folding.

[0038] Preferably, the corner block 34 has two pieces, and at least one piece is insulated. The corner block 34 is provided with a guide notch 37. The insulated corner block 34 can prevent the tab from short-circuiting. The guide notch 37 of the corner block 34 can guide the tab and allow the tab to bend in the designed direction.

[0039] In summary, the design focus of the utility model is that when folding the corners, the roller 27 first rolls the edge of the battery 12, and then the first clamp 21 pinches the corners of the battery 12 to make the corners take shape. Then, the second clamp 33 squeezes the corners of the battery 12 so that the corners are tightly attached to the battery 12, and finally the corner folding block 34 presses the corners of the battery 12 so that the corners are completely attached to the battery 12, and the corners of the battery pack are gently folded on the battery 12, effectively avoiding the rebound of the aluminum-plastic film, and the folding quality is better.

[0040] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A battery folding and corner folding mechanism, characterized in that: It includes a material discharging device, an edge folding device and a corner folding device, wherein the edge folding device and the corner folding device are arranged on the side of the material discharging device; The discharge device includes a discharge jig for placing batteries, and the discharge jig can pass through the edge folding device and the corner folding device; The folding device includes a first clamp and a roller, the roller can be pressed toward the battery, and the first clamp can pinch the corners of the battery; The corner folding device includes a second clamp and a corner folding block, wherein the second clamp can press the corner position of the battery, and the corner folding block can press toward the battery.

2. A battery edge and corner folding mechanism according to claim 1, characterized in that: The material discharge device also includes a turntable, and a plurality of the material discharge jigs are arranged on the turntable; the material discharge jig includes a first material discharge clamp, and the first material discharge clamp is provided with a first driving block, and the first driving block can drive the first material discharge clamp to open or close.

3. A battery edge and corner folding mechanism according to claim 2, characterized in that: A clamping mechanism is arranged on the lower side of the rotating disk, and an output end of the clamping mechanism is connected to a driving block of the first unloading fixture.

4. A battery edge and corner folding mechanism according to claim 1, characterized in that: The folding device also includes a first linear module, a first fixing rod, and a second linear module. The roller is arranged in the first linear module, the first clamp is arranged in the second linear module, and the first fixing rod can press toward the battery in the discharge fixture.

5. A battery edge and corner folding mechanism according to claim 4, characterized in that: The first linear module is provided with a first mounting frame; the support wheel, the insulating seat, and the roller are arranged on the mounting frame; the support wheel can roll on the first mounting frame; the guide seat with first inclined surfaces on the left and right is arranged on the insulating seat and is located on the upper side or the lower side of the roller.

6. A battery edge and corner folding mechanism according to claim 5, characterized in that: The angle between the left and right first inclined surfaces is between 5-25 degrees, and the wheel width of the roller is between 4-8 mm.

7. A battery edge and corner folding mechanism according to claim 1, characterized in that: The folding device further comprises a third linear module and a second mounting frame, wherein the second clamp and the second fixing rod are arranged on the second mounting frame; and the second fixing rod can be pressed toward the battery.

8. A battery edge and corner folding mechanism according to claim 7, characterized in that: The second mounting frame is also provided with a positioning block which can be supported on the rear of the battery, and the positioning block is provided with a first contoured groove adapted to the rear of the battery.

9. A battery edge and corner folding mechanism according to claim 1, 7 or 8, characterized in that: The corner blocks are composed of two pieces, and at least one piece is insulated; and the corner blocks are provided with guiding notches.

10. A battery edge and corner folding mechanism according to claim 1, characterized in that: A second inclined surface is arranged on the clamping head of the second clamp, and the second inclined surface can be pressed on the corner of the battery; the inclination angle of the second inclined surface is between 35° and 55°.

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