Battery cell film tearing mechanism with high stability

Abstract

This invention provides a highly stable cell film-tearing mechanism, comprising a fixed platform, a first air-blowing assembly, a handling robot, a first drive device, a second drive device, a third drive device, a first gripper assembly, a second gripper assembly, and a third gripper assembly. The first air-blowing assembly is fixed to the front end of a first mounting bracket. The handling robot is mounted above two sets of adsorption platforms. The first drive device is fixed to the right side of the fixed platform. The first gripper assembly is fixed to the power output end of the first drive device. The second drive device is fixed to the left side of the fixed platform. The second gripper assembly is fixed to the power output end of the second drive device. The third drive device is fixed in front of the second drive device. The third gripper assembly is fixed to the power output end of the third drive device. Its advantages are: it can ensure the stable operation of the film-tearing mechanism, and it has high film-tearing efficiency and saves costs.

Description

Technical Field

[0001] This invention relates to the field of film-tearing equipment, and in particular to a highly stable cell film-tearing mechanism. Background Technology

[0002] In the lithium battery manufacturing process, to avoid scratching the lithium battery, a protective film is usually applied to the surface of the lithium battery. After production is completed, the protective film is peeled off for finished product inspection.

[0003] Existing film-peeling machines typically use grippers to hold the lithium battery, apply tape to both sides of the battery, and then use the grippers to peel off the protective film while holding the tape. During the peeling process, half of the protective film is first torn off, then another gripper holds the end of the lithium battery with the peeled film and pulls the battery out, thus completing the peeling. This type of film-peeling machine has the following drawbacks: 1. Too many peeling steps lead to low efficiency; 2. When discarding waste film, tape and protective film easily stick to the film-peeling machine, affecting machine cleanliness and causing the machine to malfunction and operate unstably. Therefore, a highly stable cell film-peeling mechanism is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a highly stable cell film-tearing mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A highly stable battery cell film-tearing mechanism includes a fixed platform, a first air-blowing assembly, a handling robot, a first drive device, a second drive device, a third drive device, a first gripper assembly, a second gripper assembly, and a third gripper assembly. The fixed platform includes a first mounting bracket and adsorption platforms. Two sets of adsorption platforms are provided and fixed above the first mounting bracket on the front and rear sides. The first air-blowing assembly is fixed to the front end of the first mounting bracket. The handling robot is mounted above the two sets of adsorption platforms. The first drive device is fixed to the right side of the fixed platform. The first gripper assembly is fixed to the power output end of the first drive device. The first drive device drives the first gripper assembly to move along the X-axis and Y-axis. The second drive device is fixed to the left side of the fixed platform. The second gripper assembly is fixed to the power output end of the second drive device. The second drive device drives the second gripper assembly to move along the Y-axis. The third drive device is fixed in front of the second drive device. The third gripper assembly is fixed to the power output end of the third drive device. The third drive device drives the third gripper assembly to move along the Z-axis.

[0007] Further description of the present invention: The first driving device includes an X-axis driving component, a first Y-axis driving component, a movable bracket, and an adjusting bracket. The first gripper assembly includes a first clamping cylinder, a fixed clamping plate, and a first clamping plate. The X-axis driving component is fixedly disposed on the right side of the fixed platform. The first Y-axis driving component is fixed to the power output end of the X-axis driving component. The movable bracket is fixed to the power output end of the first Y-axis driving component. The adjusting bracket is fixed on the movable bracket and its position can be adjusted along the Z-axis direction. The first clamping cylinder is fixed on the adjusting bracket. The fixed clamping plate is fixed to the left side of the first clamping cylinder and corresponds to the upper part of the adsorption stage. The first clamping plate is fixed to the power output end of the first clamping cylinder and corresponds to the front side of the fixed clamping plate.

[0008] Further description of the present invention: The second driving device includes a first X-axis adjusting base, a second mounting bracket, a second Y-axis driving component, and a first connecting bracket. The second gripper assembly includes a second clamping cylinder and a second clamping plate. The first X-axis adjusting base is fixedly disposed on the left side of the fixed platform. The lower end of the second mounting bracket is fixed on the first X-axis adjusting base and its position can be adjusted along the X-axis direction. The second Y-axis driving component is fixed on the upper end of the second mounting bracket. The first connecting bracket is fixed on the power output end of the second Y-axis driving component. The second clamping cylinder is fixed on the first connecting bracket and its power output end faces to the right. Two sets of second clamping plates are provided and fixed on the power output end of the second clamping cylinder.

[0009] Further description of the present invention: The third driving device includes a second X-axis adjusting base, a third mounting bracket, a Z-axis driving component, and a second connecting bracket. The third gripper assembly includes a third clamping cylinder, a third clamping plate, and a second air blowing assembly. The second X-axis adjusting base is fixedly disposed on the front side of the second driving device. The lower end of the third mounting bracket is fixed on the second X-axis adjusting base and its position can be adjusted along the X-axis direction. The Z-axis driving component is fixed on the third mounting bracket. The second connecting bracket is fixed on the power output end of the Z-axis driving component. The third clamping cylinder is fixed on the second connecting bracket with its power output end facing the rear side. Two sets of third clamping plates are provided and fixed on the power output end of the third clamping cylinder. The second air blowing assembly is fixed on the second connecting bracket with its air blowing end facing the rear side.

[0010] Further description of the invention: It also includes waste baffles, with three sets of waste baffles respectively located on the left, right and rear sides of the third gripper assembly.

[0011] The beneficial effects of this invention are as follows: When removing the protective film from the battery cell, the battery cell is placed on a fixed platform. The first air blowing assembly blows the protective film at the front end of the battery cell upwards, causing the end of the protective film to curl up. The first gripper assembly clamps the curled-up position of the protective film and, driven by the first driving device, tears the protective film backwards from the upper end face of the battery cell. Then, the second gripper assembly clamps the middle part of the protective film, and the transport robot adsorbs the upper end face of the battery cell and raises the battery cell. The lower end face of the battery cell separates from the protective film, thereby completely removing the protective film from the battery cell. The protective film is moved to the rear end of the third gripper assembly under the drive of the first and second drive devices. The third gripper assembly holds the protective film and, driven by the third drive device, moves downward and releases the protective film for collection. Since the third gripper assembly holds the protective film on the non-adhesive surface, the protective film will not adhere to the third gripper assembly when it is released, ensuring the stable operation of the film-tearing mechanism. Moreover, the film-tearing process of this design is simple and does not require the use of adhesive tape to stick the protective film, resulting in high film-tearing efficiency and cost savings. Attached Figure Description

[0012] Figure 1 This is an overall structural diagram of the present invention;

[0013] Figure 2 This invention is in Figure 1 Overall structural diagram from the perspective of A;

[0014] Figure 3 yes Figure 1 A magnified view of a portion of position B in the middle;

[0015] Figure 4 yes Figure 2 A magnified view of the area at position C in the middle;

[0016] Figure 5 This is a structural diagram of the second driving device and the second gripper assembly of the present invention;

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Fixed platform; 11. First mounting bracket; 12. Adsorption platform; 2. First air blowing assembly; 3. Handling robot; 4. First drive device; 41. X-axis drive component; 42. First Y-axis drive component; 43. Movable bracket; 44. Adjustable bracket; 5. Second drive device; 51. First X-axis adjustment base; 52. Second mounting bracket; 53. Second Y-axis drive component; 54. First connecting bracket; 6. Third drive device; 61. Second X-axis adjustment base; 62. Third mounting bracket; 63. Z-axis drive component; 64. Second connecting bracket; 7. First gripper assembly; 71. First clamping cylinder; 72. Fixed clamping plate; 73. First clamping plate; 8. Second gripper assembly; 81. Second clamping cylinder; 82. Second clamping plate; 9. Third gripper assembly; 91. Third clamping cylinder; 92. Third clamping plate; 93. Second air blowing assembly; 10. Waste baffle. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] like Figures 1 to 5 As shown, a highly stable battery cell film-tearing mechanism includes a fixed platform 1, a first air-blowing assembly 2, a handling robot 3, a first drive device 4, a second drive device 5, a third drive device 6, a first gripper assembly 7, a second gripper assembly 8, and a third gripper assembly 9. The fixed platform 1 includes a first mounting bracket 11 and adsorption platforms 12. Two sets of adsorption platforms 12 are arranged and fixed on the front and rear sides above the first mounting bracket 11. The first air-blowing assembly 2 is fixed to the front end of the first mounting bracket 11. The handling robot 3 is mounted above the two sets of adsorption platforms 12. The first drive device 4 is fixedly mounted on the fixed platform 11. On the right side of the fixed platform 1, the first gripper assembly 7 is fixed to the power output end of the first drive device 4. The first drive device 4 drives the first gripper assembly 7 to run along the X-axis and Y-axis. The second drive device 5 is fixedly arranged on the left side of the fixed platform 1. The second gripper assembly 8 is fixed to the power output end of the second drive device 5. The second drive device 5 drives the second gripper assembly 8 to run along the Y-axis. The third drive device 6 is fixedly arranged in front of the second drive device 5. The third gripper assembly 9 is fixed to the power output end of the third drive device 6. The third drive device 6 drives the third gripper assembly 9 to run along the Z-axis.

[0021] When removing the protective film from the battery cell, the battery cell is placed on the adsorption platform 12 at the front end of the fixed platform 1. The protective film is U-shaped and covers the upper, rear, and lower ends of the battery cell. The front end of the protective film protrudes slightly from the front end of the battery cell. Therefore, the first air blowing assembly 2 blows air upwards at an angle onto the protective film on the upper end of the battery cell, blowing the protective film at the front end upwards, causing the end of the protective film to curl up. The first gripper assembly 7 clamps the curled-up position of the protective film and, driven by the first driving device 4, tears the protective film backwards from the upper end of the battery cell. At this point, the previously curled-up position of the protective film becomes the rear end of the protective film, while the front end of the protective film remains adhered to the lower end of the battery cell. Then, the second gripper assembly 8 clamps the middle of the protective film, and the handling robot 3 adsorbs the upper end of the battery cell and lifts the battery cell, separating the lower end of the battery cell from the front end of the protective film, thus completely removing the protective film from the battery cell. Driven by the first driving device 4 and the second driving device 5, the protective film is moved to the rear end of the third gripper assembly 9. Since the protective film tends to return to its original U-shape after being completely detached from the battery cell, the front end of the protective film will fold backward and correspond to the upper part of the rear end of the protective film. The third gripper assembly 9 clamps the protective film. At this time, the third gripper assembly 9 clamps the outer side of the protective film, which is the non-adhesive surface. After the first gripper assembly 7 and the second gripper assembly 8 are reset, the third gripper assembly 9 moves downward under the drive of the third driving device 6 and releases the protective film for collection. Since the third gripper assembly 9 clamps the non-adhesive surface of the protective film, the protective film will not adhere to the third gripper assembly 9 when it is released, ensuring the stable operation of the film tearing mechanism. Moreover, the film tearing process of this design is simple and does not require the consumption of adhesive tape to stick the protective film. The film tearing efficiency is high and the cost is saved.

[0022] The first driving device 4 includes an X-axis driving component 41, a first Y-axis driving component 42, a movable bracket 43, and an adjusting bracket 44. The first gripper assembly 7 includes a first clamping cylinder 71, a fixed clamping plate 72, and a first clamping plate 73. The X-axis driving component 41 is fixedly disposed on the right side of the fixed platform 1. The first Y-axis driving component 42 is fixed to the power output end of the X-axis driving component 41. The movable bracket 43 is fixed to the power output end of the first Y-axis driving component 42. The adjusting bracket 44 is fixed on the movable bracket 43 and its position can be adjusted along the Z-axis direction. The first clamping cylinder 71 is fixed on the adjusting bracket 44. The fixed clamping plate 72 is fixed to the left side of the first clamping cylinder 71 and corresponds to the top of the adsorption platform 12. The first clamping plate 73 is fixed to the power output end of the first clamping cylinder 71 and corresponds to the front side of the fixed clamping plate 72.

[0023] Before the first air blowing assembly 2 blows air, under the joint drive of the X-axis drive component 41 and the first Y-axis drive component 42, the fixed clamping plate 72 moves to the position above the front end of the battery cell. After the first air blowing assembly 2 blows air, the end of the protective film tilts up and contacts the fixed clamping plate 72. At this time, the first clamping cylinder 71 drives the first clamping plate 73 to move towards the side of the fixed clamping plate 72 to clamp the end of the protective film. Then, the X-axis drive component 41 drives the first gripper assembly 7 to move backward to tear the protective film off the upper end of the battery cell. The position of the adjusting bracket 44 on the movable bracket 43 can be adjusted to accommodate battery cells of different thicknesses.

[0024] The second drive device 5 includes a first X-axis adjusting base 51, a second mounting bracket 52, a second Y-axis drive component 53, and a first connecting bracket 54. The second gripper assembly 8 includes a second clamping cylinder 81 and a second clamping plate 82. The first X-axis adjusting base 51 is fixedly disposed on the left side of the fixed platform 1. The lower end of the second mounting bracket 52 is fixed on the first X-axis adjusting base 51 and its position can be adjusted along the X-axis direction. The second Y-axis drive component 53 is fixed on the upper end of the second mounting bracket 52. The first connecting bracket 54 is fixed on the power output end of the second Y-axis drive component 53. The second clamping cylinder 81 is fixed on the first connecting bracket 54 and its power output end faces to the right. Two sets of second clamping plates 82 are provided and fixed on the power output end of the second clamping cylinder 81.

[0025] After the protective film is removed from the top surface of the battery cell, the second Y-axis drive component 53 drives the second gripper assembly 8 to move towards the protective film. The second clamping cylinder 81 drives the second clamping plate 82 to clamp the middle of the protective film, fixing the middle position of the protective film. At this time, the transport robot 3 adsorbs and grabs the top surface of the battery cell upwards, and the bottom surface of the battery cell is removed from the protective film. The transport robot 3 transports the battery cell to the adsorption platform 12 at the rear end for use in the subsequent process. The front and rear positions of the second mounting bracket 52 on the first X-axis adjustment base 51 can be adjusted to accommodate battery cells of different lengths.

[0026] The third drive device 6 includes a second X-axis adjusting base 61, a third mounting bracket 62, a Z-axis drive component 63, and a second connecting bracket 64. The third gripper assembly 9 includes a third clamping cylinder 91, a third clamping plate 92, and a second air blowing assembly 93. The second X-axis adjusting base 61 is fixedly disposed on the front side of the second drive device 5. The lower end of the third mounting bracket 62 is fixed on the second X-axis adjusting base 61 and its position can be adjusted along the X-axis direction. The Z-axis drive component 63 is fixed on the third mounting bracket 62. The second connecting bracket 64 is fixed on the power output end of the Z-axis drive component 63. The third clamping cylinder 91 is fixed on the second connecting bracket 64 with its power output end facing the rear. Two sets of the third clamping plate 92 are provided and fixed on the power output end of the third clamping cylinder 91. The second air blowing assembly 93 is fixed on the second connecting bracket 64 with its air blowing end facing the rear.

[0027] After the protective film detaches from the battery cell, it moves to the rear end of the third gripper under the drive of the first Y-axis drive component 42 and the second Y-axis drive component 53. Since the protective film tends to return to its original U-shape after it is completely detached from the battery cell, the front end of the protective film will fold backward and correspond to the upper part of the rear end of the protective film. At this time, the second air blowing component 93 blows air onto the protective film to further ensure that the front end of the protective film will fold backward and correspond to the upper part of the rear end of the protective film. Then, the third clamping cylinder 91 drives the third clamping plate 92 to clamp the protective film, and under the drive of the Z-axis drive component 63, it moves downward and releases the protective film, thereby collecting the torn protective film. The front and rear positions of the third mounting bracket 62 on the second X-axis adjustment base 61 can be adjusted to adapt to different specifications of battery cells.

[0028] This design also includes waste baffles 10, with three sets of waste baffles 10 respectively located on the left, right, and rear sides of the third gripper assembly 9. These baffles can confine the protective film waste within the three sets of waste baffles 10 for collection. Waste collection holes can be provided within the three sets of waste baffles 10, allowing the protective film waste to enter the collection container through the waste collection holes, ensuring the cleanliness of the equipment.

[0029] The working principle of this embodiment:

[0030] When removing the protective film from the battery cell, the battery cell is placed on a fixed platform 1. The first air blowing assembly 2 blows the protective film at the front end of the battery cell upward, causing the end of the protective film to curl up. The first gripper assembly 7 clamps the curled-up protective film and, driven by the first drive device 4, tears the protective film backward from the top surface of the battery cell. Then, the second gripper assembly 8 clamps the middle of the protective film, and the transport robot 3 adsorbs the top surface of the battery cell and raises the battery cell, separating the bottom surface of the battery cell from the protective film, thus completely removing the protective film from the battery cell. The removed protective film is then moved to the rear end of the third gripper assembly 9 under the drive of the first drive device 4 and the second drive device 5. The third gripper assembly 9 clamps the protective film and, driven by the third drive device 6, moves it downward and releases the protective film for collection. Since the third gripper assembly 9 clamps the non-adhesive surface of the protective film, the protective film will not adhere to the third gripper assembly 9 when it is released, ensuring the stable operation of the film-tearing mechanism.

[0031] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the technical scope of the present invention.

Claims

1. A cell film tearing mechanism with high stability, characterized in that: The device includes a fixed platform, a first air blowing assembly, a handling robot, a first drive device, a second drive device, a third drive device, a first gripper assembly, a second gripper assembly, and a third gripper assembly. A U-shaped protective film covers the upper, rear, and lower surfaces of the battery cell. The fixed platform includes a first mounting bracket and two suction platforms, fixed above the first mounting bracket on both the front and rear sides. The first air blowing assembly is fixed to the front end of the first mounting bracket and blows air upwards onto the protective film on the upper surface of the battery cell. The handling robot is mounted above the two suction platforms. The first drive device is fixedly mounted on the fixed platform. On the right side of the platform, the first gripper assembly is fixed to the power output end of the first drive device. The first drive device drives the first gripper assembly to run along the X-axis and Y-axis. The second drive device is fixedly arranged on the left side of the fixed platform. The second gripper assembly is fixed to the power output end of the second drive device. The second drive device drives the second gripper assembly to run along the Y-axis. The second gripper assembly clamps the middle part of the protective film. The third drive device is fixedly arranged in front of the second drive device. The third gripper assembly is fixed to the power output end of the third drive device. The third drive device drives the third gripper assembly to run along the Z-axis. The second drive device includes a first X-axis adjustment base, a second mounting bracket, a second Y-axis drive component, and a first connecting bracket. The second gripper assembly includes a second clamping cylinder and a second clamping plate. The first X-axis adjustment base is fixedly disposed on the left side of the fixed platform. The lower end of the second mounting bracket is fixed on the first X-axis adjustment base and its position can be adjusted along the X-axis direction. The second Y-axis drive component is fixed on the upper end of the second mounting bracket. The first connecting bracket is fixed on the power output end of the second Y-axis drive component. The second clamping cylinder is fixed on the first connecting bracket and its power output end faces to the right. Two sets of the second clamping plates are provided and fixed on the power output end of the second clamping cylinder. The third drive device includes a second X-axis adjustment base, a third mounting bracket, a Z-axis drive component, and a second connecting bracket. The third gripper assembly includes a third clamping cylinder, a third clamping plate, and a second air blowing assembly. The second X-axis adjustment base is fixedly disposed on the front side of the second drive device. The lower end of the third mounting bracket is fixed on the second X-axis adjustment base and its position can be adjusted along the X-axis direction. The Z-axis drive component is fixed on the third mounting bracket. The second connecting bracket is fixed on the power output end of the Z-axis drive component. The third clamping cylinder is fixed on the second connecting bracket with its power output end facing the rear. Two sets of the third clamping plates are provided and fixed on the power output end of the third clamping cylinder. The second air blowing assembly is fixed on the second connecting bracket with its air blowing end facing the rear.

2. The cell film tearing mechanism with high stability according to claim 1, characterized in that: The first driving device includes an X-axis driving component, a first Y-axis driving component, a movable bracket, and an adjusting bracket. The first gripper assembly includes a first clamping cylinder, a fixed clamping plate, and a first clamping plate. The X-axis driving component is fixedly disposed on the right side of the fixed platform. The first Y-axis driving component is fixed to the power output end of the X-axis driving component. The movable bracket is fixed to the power output end of the first Y-axis driving component. The adjusting bracket is fixed on the movable bracket and its position can be adjusted along the Z-axis direction. The first clamping cylinder is fixed on the adjusting bracket. The fixed clamping plate is fixed to the left side of the first clamping cylinder and corresponds to the top of the adsorption stage. The first clamping plate is fixed to the power output end of the first clamping cylinder and corresponds to the front side of the fixed clamping plate.

3. The cell film tearing mechanism with high stability according to claim 1, characterized in that: It also includes waste baffles, which are provided in three sets and respectively correspond to the left, right and rear sides of the third gripper assembly.

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