Diaphragm stripping mechanism

Abstract

The utility model relates to the technical field of battery recovery and discloses a diaphragm stripping mechanism. The diaphragm stripping mechanism comprises a diaphragm separating assembly, a diaphragm clamping assembly and a winding assembly, the film separating assembly comprises a mounting plate, a film absorbing piece and a film separating driving piece; the film suction part comprises a back shore frame movably connected with the mounting plate, a film suction driving part and a negative pressure suction cup. The film suction driving piece drives the negative pressure suction cup to move relative to the back shore frame. A clamping opening is formed in the back shore frame; the film clamping assembly comprises a clamping jaw and a film clamping moving piece; the clamping jaw corresponds to the clamping opening in position; the negative pressure suction cup and the clamping jaw are arranged on the same side of the back shore frame. A negative pressure suction cup is arranged to adsorb a diaphragm, the negative pressure suction cup moves to achieve separation between the diaphragm and a pole piece, the separated diaphragm is pressed to a back shore frame through a clamping jaw, the diaphragm at the position of a clamping opening is clamped, the clamping jaw can fold the diaphragm and then clamp the diaphragm, the two layers of diaphragms are clamped at the same time, and the reliability of diaphragm clamping is improved; the full-automatic operation of separating and clamping the diaphragm is realized, and the recovery efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery recycling, in particular to a diaphragm stripping mechanism. Background Art

[0002] Battery recycling refers to the act of collecting used batteries to prevent them from entering the ecosystem and causing harm to the environment. Used batteries contain a large amount of heavy metals and electrolyte solutions such as waste acid and waste alkali. If they are discarded at will, the rotten batteries will destroy water sources, erode crops and land, and the living environment will face a huge threat. Therefore, it is necessary to recycle and reuse used batteries. On the one hand, it can prevent environmental pollution, and on the other hand, it can reuse the useful components in them and save resources.

[0003] The core inside the battery will be unwound first when it is recycled. After the core is unwound, a laminated electrode film group will be obtained. The electrode film group usually has four layers, which are the negative electrode, the diaphragm, the positive electrode, and the diaphragm. The diaphragm needs to be separated from the electrode during recycling, so the outermost electrode will be separated first. The outermost electrode is usually the negative electrode, and a small part is the positive electrode. After separating the outermost electrode, a three-layer electrode film group will remain, that is, the electrode in the middle and the diaphragm on both sides; at this time, the diaphragm on both sides of the electrode needs to be removed.

[0004] During the process of clamping and peeling the diaphragm by the diaphragm peeling mechanism, it is difficult to perform a separate clamping operation on the diaphragm due to the thin thickness of the diaphragm and its adhesion to the electrode piece. The existing solution is to manually peel off the ends of the diaphragm and the electrode piece, and then wind the two ends of the diaphragm on the winding assembly for subsequent diaphragm peeling operations. It is difficult to achieve fully automated diaphragm peeling, which affects the recycling efficiency. Utility Model Content

[0005] The technical problems to be solved by the utility model are:

[0006] The diaphragm is attached to the electrode and cannot be clamped, making it difficult to achieve full automation, which affects the recycling efficiency.

[0007] In order to solve the above technical problems, the utility model provides a membrane peeling mechanism, which has a first direction and a second direction intersecting each other, and the membrane peeling mechanism comprises:

[0008] The film-separating assembly comprises a mounting plate, a film-absorbing member slidably mounted on the mounting plate, and a film-separating driving member connected to the film-absorbing member; the film-separating driving member drives the film-absorbing member to move in a first direction; the film-absorbing member comprises a top support frame movably connected to the mounting plate, a film-absorbing driving member connected to the top support frame, and a negative pressure suction cup connected to the film-absorbing driving member; the top support frame is connected to the film-separating driving member, the film-absorbing driving member connects the top support frame and the negative pressure suction cup, the film-absorbing driving member drives the negative pressure suction cup to move relative to the top support frame along the first direction, and the negative pressure suction cup is used for negative pressure adsorption of the diaphragm; a clamp is provided on the top support frame;

[0009] A membrane clamping assembly, the membrane clamping assembly comprising a clamping jaw and a membrane clamping moving member connected to the clamping jaw; the clamping jaw corresponds to the setting position of the clamping opening, and the membrane clamping moving member drives the clamping jaw to move; in the second direction, the negative pressure suction cup and the clamping jaw are arranged on the same side of the top support frame, and the clamping jaw is used to press the diaphragm adsorbed by the negative pressure suction cup against the top support frame, and clamp the diaphragm through the clamping opening position; and

[0010] A winding assembly is used to wind the diaphragm clamped by the clamping claws.

[0011] In one embodiment, two film absorbing members are provided, and the two film absorbing members are arranged opposite to each other on the mounting plate, and the film separation driving member drives the two film absorbing members to move closer to or away from each other.

[0012] In one embodiment, the membrane peeling mechanism has a third direction, and the clamps are arranged on the top support frame at intervals along the third direction;

[0013] The first direction, the second direction and the third direction intersect each other.

[0014] In one embodiment, the clamping assembly further comprises a fixing frame; the clamping jaws are mounted on the fixing frame, the clamping jaws are arranged in one-to-one correspondence with the clamping openings, and the clamping jaws are arranged on the fixing frame at intervals along the third direction;

[0015] The film clamping moving member includes a first film clamping driving member and a second film clamping driving member; the first film clamping driving member is connected to the fixed frame, and the first film clamping driving member drives the fixed frame to move along a first direction, and the second film clamping driving member is connected to the first film clamping driving member, and the second film clamping driving member drives the first film clamping driving member to move along a second direction.

[0016] In one of the embodiments, the winding assembly includes a winding base plate, a sliding platform, a sliding drive, a fork rod and a winding drive; the sliding platform is slidably arranged on the winding base plate, the sliding drive connects the winding base plate and the sliding platform, the sliding drive drives the sliding platform to move along a third direction relative to the winding base plate, the fork rod is rotatably connected to the sliding platform, the winding drive is installed on the sliding platform, and the winding drive drives the fork rod to rotate.

[0017] In one of the embodiments, the membrane peeling mechanism further includes a membrane guide assembly;

[0018] The film guide assembly comprises a film guide frame, a first rotating roller, a second rotating roller, a film guide driving member and a rotating driving member; the film guide frame is located at a side of the winding assembly close to the film separation assembly, the first rotating roller is rotatably connected to the film guide frame, the second rotating roller is slidably arranged on the film guide frame, the film guide driving member connects the film guide frame and the second rotating roller, the film guide driving member drives the second rotating roller to move along the second direction, the second rotating roller is used to press the diaphragm against the first rotating roller, and the rotating driving member drives the first rotating roller and the second rotating roller to rotate;

[0019] Wherein, in the second direction, the engaging position of the first roller and the second roller is flush with the setting position of the shift fork lever.

[0020] In one embodiment, bristles are disposed on the outer side of the first roller.

[0021] In one of the embodiments, the membrane stripping mechanism further includes a membrane cutting assembly;

[0022] The film cutting assembly includes a film cutting drive, a film cutting frame and a cutting piece; the film cutting drive is connected to the film suction drive so that the film cutting assembly moves together with the negative pressure suction cup; the film cutting frame is connected to the film cutting drive, and the film cutting drive drives the film cutting frame to move along a first direction relative to the negative pressure suction cup, and the cutting piece is installed on a side of the film cutting frame close to the top support frame.

[0023] In one of the embodiments, the diaphragm peeling mechanism further includes a pole piece fixing assembly;

[0024] The pole piece fixing assembly includes a pole piece pressure seat and a pole piece fixing driving member; two pole piece pressure seats are provided, and the two pole piece pressure seats are relatively slidably arranged on the mounting plate; two pole piece fixing driving members are provided, and the pole piece fixing driving members are arranged in a one-to-one correspondence with the pole piece pressure seats, and the pole piece fixing driving member drives the two pole piece pressure seats to move closer to or away from each other.

[0025] In one embodiment, the membrane peeling mechanism further comprises a film delivery assembly, and the film delivery assembly is arranged on a side of the top support frame away from the negative pressure suction cup;

[0026] The film feeding assembly includes two film feeding rollers, a film feeding telescopic part and a film feeding driving part arranged in parallel; the film feeding roller is movably connected to the mounting plate, the film feeding telescopic part is connected to the film feeding roller, the film feeding telescopic part drives the two film feeding rollers to move closer to or away from each other, the film feeding driving part is connected to the film feeding roller, and the film feeding driving part is used to drive the film feeding roller to rotate.

[0027] Compared with the prior art, the above-mentioned membrane peeling mechanism has the following beneficial effects:

[0028] A negative pressure suction cup is set to adsorb the diaphragm, and then the negative pressure suction cup is driven to move by the film suction driving member to achieve separation between the diaphragm and the electrode piece. The separated diaphragm is then pressed toward the top support frame by the clamping claws, and the diaphragm at the clamping position on the top support frame is clamped. At this time, the clamping claws will fold the diaphragm and then clamp it, while clamping two layers of diaphragm to improve the reliability of diaphragm clamping. The negative pressure suction cup is used to perform separation operations, thereby realizing a fully automated operation of separating the diaphragm from the electrode piece and clamping and fixing it, thereby improving the overall recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a diaphragm peeling mechanism according to one embodiment of the utility model;

[0030] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle circle A portion;

[0031] Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle circle B portion;

[0032] Figure 4 for Figure 1 A partial enlarged schematic diagram of the middle circle C portion;

[0033] Figure 5 for Figure 1 Schematic diagram of the structure of the middle membrane assembly;

[0034] Figure 6 for Figure 5 A schematic diagram of the structure of the center-split membrane assembly from another angle;

[0035] Figure 7 for Figure 1 Schematic diagram of the structure of the middle sandwich membrane assembly;

[0036] Figure 8 for Figure 7 A partial enlarged schematic diagram of the middle circle D portion;

[0037] Fig. 9 for Figure 1 A schematic diagram of the structure of the winding assembly;

[0038] Fig.10 for Figure 1 Schematic diagram of the structure of the medium-conducting membrane module.

[0039] The meanings of the numbers in the accompanying drawings are:

[0040] 100. Diaphragm peeling mechanism;

[0041] 10. Film separation assembly; 11. Mounting plate; 12. Film suction member; 13. Film separation driving member; 15. Top support frame; 16. Film suction driving member; 17. Negative pressure suction cup; 18. Clamp;

[0042] 20. Clamping film assembly; 21. Clamping claw; 22. Clamping film moving member; 23. Fixed frame; 25. First clamping film driving member; 26. Second clamping film driving member;

[0043] 30. Winding assembly; 31. Winding base plate; 32. Sliding platform; 33. Sliding drive member; 34. Fork rod; 35. Winding drive member;

[0044] 40. Film guide assembly; 41. Film guide frame; 42. First rotating roller; 43. Second rotating roller; 44. Film guide driving member; 45. Rotating driving member; 46. Brush;

[0045] 50. Film cutting assembly; 51. Film cutting drive member; 52. Film cutting frame; 53. Cutting member;

[0046] 60. Pole piece fixing assembly; 61. Pole piece pressing seat; 62. Pole piece fixing driving member;

[0047] 70. Film delivery assembly; 71. Film delivery material roller; 72. Film delivery telescopic member; 73. Film delivery driving member. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0054] It should be noted that according to Figure 1 As shown, in the embodiment of the utility model, the X-axis direction, the Y-axis direction and the Z-axis direction intersect each other. For the convenience of explanation, the first direction is defined as the X-axis direction, the second direction is defined as the Y-axis direction, and the third direction is defined as the Z-axis direction. In this embodiment, the X-axis direction and the Y-axis direction are coplanar and relatively perpendicular to each other, and the Z-axis direction is relatively perpendicular to the common plane of the X-axis and the Y-axis. The first direction, the second direction, and the third direction are relatively perpendicular to each other. Further explanation, the definition of relative verticality in the specification should be understood as relative verticality within a 10% fluctuation of 90 degrees, that is, the angle between the first direction and the second direction defined as between 80 degrees and 90 degrees should be understood as relative verticality.

[0055] See also Figures 1 to 6, a membrane peeling mechanism 100 of one embodiment of the utility model includes a membrane separation assembly 10, a membrane clamping assembly 20 and a winding assembly 30. The membrane separation assembly 10 includes a mounting plate 11, a membrane suction member 12 slidably mounted on the mounting plate 11, and a membrane separation driving member 13 connected to the membrane suction member 12; the membrane separation driving member 13 drives the membrane suction member 12 to move in a first direction. The membrane suction member 12 includes a top support frame 15 movably connected to the mounting plate 11, a membrane suction driving member 16 connected to the top support frame 15, and a negative pressure suction cup 17 connected to the membrane suction driving member 16; the top support frame 15 is connected to the membrane separation driving member 13, the membrane suction driving member 16 connects the top support frame 15 and the negative pressure suction cup 17, the membrane suction driving member 16 drives the negative pressure suction cup 17 to move relative to the top support frame 15 along the first direction, and the negative pressure suction cup 17 is used to perform negative pressure adsorption on the membrane; a clamp 18 is provided on the top support frame 15, and the clamp 18 is provided on the side of the top support frame 15 facing the negative pressure suction cup 17. The film clamping assembly 20 includes a clamping jaw 21 and a film clamping moving member 22 connected to the clamping jaw 21; the setting position of the clamping jaw 21 corresponds to the clamping opening 18, and the clamping moving member 22 drives the clamping jaw 21 to move; in the second direction, the negative pressure suction cup 17 and the clamping jaw 21 are set on the same side of the top support frame 15, and the clamping jaw 21 is used to press the diaphragm adsorbed by the negative pressure suction cup 17 against the top support frame 15, and clamp the diaphragm through the position of the clamping opening 18. The negative pressure suction cup 17 and the clamping jaw 21 are located on the same side of the top support frame 15. The negative pressure suction cup 17 first peels off the diaphragm, and then the clamping jaw 21 presses the diaphragm against the top support frame 15. At this time, the diaphragm will be folded due to the top support frame 15, and the clamping jaw 21 directly clamps the folded diaphragm through the position of the clamping opening 18, thereby improving the stability of the clamping jaw 21 in grasping the diaphragm. The winding assembly 30 is used to wind the diaphragm clamped by the clamping jaw 21.

[0056] It should be noted that the battery core is wound by the electrode film group, so disassembling the core will obtain a long strip of electrode film group. The electrode film group is a stacked structure, and the electrode film group usually includes four layers: a positive electrode, a negative electrode, and a diaphragm arranged on both sides of the positive electrode or a diaphragm on both sides of the negative electrode. In the process of recycling the electrode film group, the outermost exposed electrode will be recycled first, and the electrode exposed on the outside is usually the negative electrode. The remaining three-layer structure is the electrode and the diaphragms on both sides. The three-layer structure needs to enter the diaphragm stripping mechanism 100 to separate the diaphragm so that the diaphragm and the electrode can be collected separately.

[0057] Furthermore, the mounting plate 11 is used to connect and fix with the outside world, and the mounting plate 11 supports the whole membrane separation assembly 10; it is understandable that the specific shape of the mounting plate 11 is not limited here, and it is sufficient to ensure that it can be installed for other components. The film absorption member 12 is slidably arranged on the mounting plate 11, and the film absorption member 12 is used to absorb the diaphragm, and then separate the diaphragm from the pole piece by movement. The membrane separation driving member 13 is connected to the film absorption member 12, and the membrane separation driving member 13 drives the film absorption member 12 to move along the first direction relative to the mounting plate 11. It is understandable that the membrane separation driving member 13 is one of a cylinder, a hydraulic cylinder, a linear motor, a gear rack structure, a screw structure or a belt drive structure. The specific structure of the membrane separation driving member 13 is not limited here, and it is sufficient to ensure that the membrane separation driving member 13 can drive the film absorption member 12 to move linearly in the first direction. In this embodiment, there are two film absorbing components 12, and the two film absorbing components 12 are relatively arranged on the mounting plate 11; the film separation driving component 13 is a gear rack structure, and the racks are relatively arranged on both sides of the gear. The rotation of the gear drives the racks on both sides to move synchronously. The racks are respectively connected to the two film absorbing components 12. The film separation driving component 13 drives the two film absorbing components 12 to move closer to or away from each other, so as to realize the synchronous adsorption and separation operation of the diaphragms on both sides of the electrode.

[0058] Furthermore, the top support frame 15 is roughly in the shape of a long strip and extends along the third direction. The top support frame 15 is slidably mounted on the mounting plate 11 and connected to the film separation drive 13. The film suction drive 16 is connected to the top support frame 15, and the negative pressure suction cup 17 is mounted on the film suction drive 16. The film suction drive 16 drives the negative pressure suction cup 17 to move along the first direction. The negative pressure suction cup 17 is connected to the external negative pressure exhaust device to achieve the adsorption of the diaphragm by the negative pressure suction cup 17. It can be understood that the film suction drive 16 is one of a cylinder, a hydraulic cylinder, a linear motor, a gear rack structure, a screw structure or a belt drive structure. The specific structure of the film suction drive 16 is not limited here, and it is sufficient to ensure that the film suction drive 16 can drive the negative pressure suction cup 17 to move linearly in the first direction. In this embodiment, the film suction drive 16 is a cylinder. The clamping opening 18 is arranged in a groove shape on one side of the top support frame 15 close to the negative pressure suction cup 17, and the clamping opening 18 penetrates the top support frame 15 along the first direction, and the clamping opening 18 is arranged at intervals along the third direction on the top support frame 15. A plurality of negative pressure suction cups 17 are also provided, and each negative pressure suction cup 17 is arranged at intervals along the third direction, and the negative pressure suction cups 17 in the same film suction member 12 are synchronously fixed on the film suction driving member 16.

[0059] Further, the clamping jaw 21 is connected to the film clamping moving member 22, the position of the clamping jaw 21 and the clamping opening 18 corresponds, the diaphragm at the position of the clamping opening 18 is clamped by the clamping jaw 21, and the film clamping moving member 22 is used to drive the clamping jaw 21 to move. In the present embodiment, the film clamping moving member 22 includes a first film clamping driving member 25 and a second film clamping driving member 26. The first film clamping driving member 25 drives the clamping jaw 21 to move along the first direction, and the second film clamping driving member 26 is connected to the first film clamping driving member 25, and the second film clamping driving member 26 drives the first film clamping driving member 25 to move along the second direction. It can be understood that the first film clamping driving member 25 is one of a cylinder, a hydraulic cylinder, a linear motor, a gear rack structure, a screw structure or a belt transmission structure. The specific structure of the first film clamping driving member 25 is not limited here, and it is sufficient to ensure that the first film clamping driving member 25 can drive the clamping jaw 21 to move linearly in the first direction. The second film clamping driver 26 is one of a cylinder, a hydraulic cylinder, a linear motor, a gear rack structure, a screw structure or a belt transmission structure. The specific structure of the second film clamping driver 26 is not limited here, and it is sufficient to ensure that the second film clamping driver 26 can drive the first film clamping driver 25 to move linearly in the second direction, and the movement control of the clamping jaw 21 in the first direction and the second direction is realized by the first film clamping driver 25 and the second film clamping driver 26. Specifically, the first film clamping driver 25 is a belt transmission structure, and the second film clamping driver 26 is a screw structure.

[0060] Furthermore, the film clamping assembly 20 further includes a fixing frame 23. The fixing frame 23 is in a strip shape and extends along the third direction. The clamping jaw 21 is mounted on the fixing frame 23. The fixing frame 23 is connected to a first film clamping driving member 25. The first film clamping driving member 25 drives the fixing frame 23 to move along the first direction, thereby driving the clamping jaw 21 to move along with the fixing frame 23. In this embodiment, a plurality of clamps 21 are provided, and the clamps 21 are arranged on the fixed frame 23 at intervals along the third direction, and the clamps 21 are provided in a one-to-one correspondence with the clamping opening 18; the number of the negative pressure suction cup 17, the clamps 21 and the clamping opening 18 is the same, and the setting positions of the negative pressure suction cup 17 and the clamping opening 18 correspond to each other. The reliability of the adsorption of the diaphragm is improved by providing a plurality of negative pressure suction cups 17, and the reliability of the diaphragm clamping is improved by providing the clamps 21. At the same time, the positions of the negative pressure suction cup 17 and the clamps 21 are provided corresponding to the clamping opening 18 to ensure that the tensioning force applied by the negative pressure suction cup 17 to the diaphragm acts at the position of the clamping opening 18. At this time, when the clamps 21 press the diaphragm to the top support frame 15, the diaphragm can be folded more stably to avoid the looseness of the diaphragm due to not being tensioned, which leads to the inability to fold. It can be understood that two fixing frames 23 are provided, and the two fixing frames 23 are respectively installed with clamping claws 21 to achieve the clamping operation of the diaphragms on both sides of the electrode piece.

[0061] Furthermore, the winding assembly 30 includes a winding base plate 31, a sliding platform 32, a sliding driving member 33, a fork rod 34 and a winding driving member 35. The winding base plate 31 is in the shape of a straight plate, and is used to support the entire winding assembly 30. The winding base plate 31 is connected and fixed to the outside world like the mounting plate 11. The sliding platform 32 is arranged parallel to the winding base plate 31, and the sliding platform 32 is slidably arranged on the winding base plate 31. The sliding driving member 33 connects the winding base plate 31 and the sliding platform 32, and the sliding driving member 33 drives the sliding platform 32 to move relative to the winding base plate 31 along the third direction. The fork rod 34 is rotatably connected to the sliding platform 32. The fork rod 34 is cylindrical and long and extends along the third direction. Two fork rods 34 are arranged in parallel, and the gap between the two fork rods 34 is used for inserting the diaphragm. The winding drive 35 is installed on the sliding platform 32. The winding drive 35 drives the fork rod 34 to rotate, and the diaphragm is inserted between the two fork rods 34. The winding of the diaphragm can be achieved by rotating the two fork rods 34. In this embodiment, the winding assembly 30 is provided with two, and the two winding assemblies 30 are relatively arranged on both sides of the membrane separation assembly 10 to respectively perform winding operations on the diaphragms on both sides. The diaphragms on both sides are wound and recycled, and the pole pieces between the diaphragms on both sides will automatically fall down for collection. It can be understood that the sliding drive member 33 is one of a cylinder, a hydraulic cylinder, a linear motor, a gear rack structure, a screw structure or a belt transmission structure. The specific structure of the sliding drive member 33 is not limited here, and it is sufficient to ensure that the sliding drive member 33 can drive the sliding platform 32 to move linearly in the third direction. In this embodiment, the sliding drive member 33 is a cylinder; the winding drive member 35 is a motor.

[0062] Furthermore, the membrane stripping mechanism 100 further includes a film guide assembly 40, which is used to guide the membrane and is disposed between the membrane separation assembly 10 and the winding assembly 30. The film guide assembly 40 includes a film guide frame 41, a first rotating roller 42, a second rotating roller 43, a film guide driving member 44 and a rotating driving member 45. The film guide frame 41 is located on the side of the winding assembly 30 close to the film separation assembly 10, and the film guide frame 41 is located below the mounting plate 11 in the second direction, that is, on the side of the top support frame 15 close to the negative pressure suction cup 17, and the film guide frame 41 is used to support and fix the film guide assembly 40; the first roller 42 is rotatably connected to the film guide frame 41, and the first roller 42 is cylindrical, and the first roller 42 is extended along the third direction; the second roller 43 is slidably arranged on the film guide frame 41, and the second roller 43 is cylindrical and arranged in parallel with the first roller 42, and the second roller 43 is arranged on the side of the first roller 42 close to the film separation assembly 10 along the second direction; the film guide driving member 44 connects the film guide frame 41 and the second roller 43, and the film guide driving member 44 drives the second roller 43 to move in the second direction, and the second roller 43 is used to press the diaphragm against the first roller 42, and the rotating driving member 45 drives the first roller 42 and the second roller 43 to rotate. It can be understood that the film guide drive member 44 is one of a cylinder, a hydraulic cylinder, a linear motor, a gear rack structure, a screw structure or a belt transmission structure. The specific structure of the film guide drive member 44 is not limited here, and it is sufficient to ensure that the film guide drive member 44 can drive the second roller 43 to move linearly in the second direction. In this embodiment, the film guide drive member 44 is a cylinder, and the rotation drive member 45 is a motor. The number of film guide assemblies 40 is two to guide the diaphragms on both sides respectively; two rotation drive members 45 are arranged on the same film guide assembly 40, and the two rotation drive members 45 are respectively connected to the first roller 42 and the second roller 43.

[0063] Furthermore, in the second direction, the engagement position of the first roller 42 and the second roller 43 is flush with the setting position of the fork rod 34, and the movement of the clamping jaw 21 in the second direction is controlled by the second film clamping driving member 26, which also controls the movement of the clamping jaw 21 to a position flush with the fork rod 34 in the second direction. In this way, it is ensured that the clamping jaws 21 move to the position between the first roller 42 and the second roller 43 when clamping the diaphragm, the clamping jaws 21 drive the diaphragm to pass through between the first roller 42 and the second roller 43 and then continue to move in the second direction, and the second roller moves to press the diaphragm against the first roller 42. At this time, the end of the diaphragm is clamped by the clamping jaws 21, and the middle position is clamped and guided by the second roller 43 and the first roller 42, ensuring that the diaphragm extends horizontally in the second direction at this time and corresponds to the interval position between the two fork rods 34. In this way, the fork rod 34 is driven by the sliding platform 32 to move along the third direction, so that the diaphragm can be embedded between the two fork rods 34, thereby ensuring the reliability of the subsequent winding operation.

[0064] Furthermore, bristles 46 are provided on the outer side of the first roller 42. The bristles 46 are arranged at intervals around the first roller 42, and the bristles 46 rotate together with the first roller 42. By arranging the bristles 46 on the outer side of the first roller 42, the electrode piece and the diaphragm can be effectively prevented from sticking to each other, thereby preventing the electrode piece from being transferred into the space between the first roller 42 and the second roller 43 along with the diaphragm. When the electrode piece and the diaphragm stick to each other, the bristles 46 can effectively sweep the electrode piece away.

[0065] Furthermore, the membrane stripping mechanism 100 also includes a membrane cutting assembly 50. Since the battery core will continue to wrap a circle of membrane after the electrode sheet is wound during the winding process for safety reasons, so as to achieve the purpose of the membrane wrapping the core, there is no electrode sheet between the two layers of membrane at the initial end of the disassembled core, which will affect the adsorption and grasping of the membrane. The membrane cutting assembly 50 is used to cut off the end of the membrane and expose the end of the electrode sheet between the membranes. In this embodiment, the membrane cutting assembly 50 includes a membrane cutting drive 51, a membrane cutting frame 52 and a cutting member 53. The film cutting drive 51 is connected to the film suction drive 16 so that the film cutting assembly 50 moves with the negative pressure suction cup 17; the film cutting frame 52 is connected to the film cutting drive 51, and the film cutting drive 51 drives the film cutting frame 52 to move relative to the negative pressure suction cup 17 along the first direction. The film cutting frame 52 is a U-shaped structure, and the opening direction of the film cutting frame 52 is toward the negative pressure suction cup 17; the two ends of the cutting member 53 are connected to the two ends of the opening of the film cutting frame 52, and the cutting member 53 is installed on the side of the film cutting frame 52 close to the top support frame 15. The cutting member 53 is used to cut the diaphragm. In the second direction, the negative pressure suction cup 17 is arranged between the cutting member 53 and the top support frame 15. It can be understood that the film cutting drive 51 is one of a cylinder, a hydraulic cylinder, a linear motor, a gear rack structure, a screw structure or a belt transmission structure. The specific structure of the film cutting drive 51 is not limited here, and it is sufficient to ensure that the film cutting drive 51 can drive the film cutting frame 52 and then drive the cutting member 53 to move linearly in the first direction. In this embodiment, the film cutting driving member 51 is a cylinder; two film cutting assemblies 50 are provided to perform cutting operations on the diaphragms on both sides.

[0066] Furthermore, the diaphragm stripping mechanism 100 also includes a pole piece fixing assembly 60, which is used to clamp and fix the pole piece exposed after the diaphragm is cut, so as to improve the reliability of the negative pressure suction cup 17 adsorbing the diaphragm and separating from the pole piece. In the present embodiment, the pole piece fixing assembly 60 includes a pole piece pressing seat 61 and a pole piece fixing driving member 62. There are two pole piece pressing seats 61, and the two pole piece pressing seats 61 are relatively slidably arranged on the mounting plate 11. One end of the pole piece pressing seat 61 is cylindrical and extends along the third direction to achieve clamping and fixing of the pole piece. In the second direction, the pole piece pressing seat 61 is arranged between the cutting member 53 and the negative pressure suction cup 17. There are two pole piece fixing driving members 62, and the pole piece fixing driving members 62 are arranged one by one with the pole piece pressing seat 61. The pole piece fixing driving member 62 drives the two pole piece pressing seats 61 to move closer to or away from each other. Specifically, the pole piece fixing driving member 62 is a cylinder, and the two cylinders are connected to the same air source.

[0067] Furthermore, the membrane stripping mechanism 100 also includes a film delivery assembly 70. Since the three-layer structure of the electrode film group is clamped and delivered into the membrane stripping mechanism 100 by an external robot, and the external robot will separate after delivery, because the film cutting assembly 50 will cut off the end of the membrane clamped by the external robot, at this time, the clamping claw 21 has not clamped the membrane, resulting in a lack of driving force for the electrode film group to move. The film delivery assembly 70 is used to provide a driving force to drive the electrode film group to move. In this embodiment, the film delivery assembly 70 includes two film delivery rollers 71 arranged in parallel, a film delivery telescopic member 72, and a film delivery driving member 73. The film feeding roller 71 is movably connected to the mounting plate 11, and the two film feeding rollers 71 are arranged in parallel and spaced apart along the first direction. The film feeding telescopic member 72 is connected to the film feeding roller 71, and the film feeding telescopic member 72 drives the two film feeding rollers 71 to move closer to or away from each other, so as to clamp the three-layer structure of the electrode film group; the film feeding driving member 73 is connected to the film feeding roller 71, and the film feeding driving member 73 is used to drive the film feeding roller 71 to rotate, thereby driving the three-layer structure of the electrode film group to move. In this embodiment, the film feeding telescopic member 72 is a cylinder, and the film feeding driving member 73 is a motor; the film feeding telescopic member 72 is provided with two, and the film feeding driving member 73 is provided with two, the two film feeding telescopic members 72 are respectively connected to the two film feeding rollers 71, and the film feeding driving member 73 is respectively connected to the film feeding rollers 71.

[0068] The working process of the utility model is as follows: the three-layer structure of the electrode membrane group refers to the middle electrode and the diaphragms on both sides. The three-layer structure of the electrode membrane group is clamped at the ends by an external manipulator and passes through between two feeding rollers along the second direction until the electrode ends reach between the two feeding rollers, and then the external manipulator is separated from the diaphragm ends. The film feeding telescopic member 72 drives the film feeding rollers 71 on both sides to clamp the two sides of the electrode film group to transport the electrode film group until the end of the electrode moves to the position of the film cutting assembly 50; the film separation driving member 13 controls the film suction members 12 on both sides to approach the electrode film group, and the film suction driving member 16 and the film cutting driving member 51 are both in a contracted state. At this time, the negative pressure suction cup 17 presses on the diaphragm and the cutting member 53 presses on the diaphragm below the negative pressure suction cup 17. The cutting member 53 cuts the diaphragm, and the cut diaphragm automatically falls to expose the end of the electrode. The film cutting driving member 51 extends to separate the cutting member 53 from the diaphragm, and the electrode fixing driving member 62 drives the electrode pressing seat 61 to clamp and fix the end of the electrode. The negative pressure suction cup 17 absorbs the diaphragm, and the film suction driving member 16 extends to separate the end of the diaphragm from the electrode. At this time, the film feeding assembly 70 is transported downward by a certain preset distance to ensure that the subsequent diaphragm can be folded. The clamp 21 first passes through the first roller 42 and the second roller 43 along the first direction, and moves to the bottom of the top support frame 15. The clamp 21 then moves upward along the second direction until the diaphragm is pressed against the top support frame 15. At this time, the end of the diaphragm is in a folded state, and the clamp 21 clamps and fixes the end of the diaphragm, and the negative pressure suction cup 17 stops adsorption. The clamp 21 moves downward along the second direction until it reaches the height corresponding to the fork rod 34. The clamp 21 passes through the first roller 42 and the second roller 43 along the first direction and moves horizontally. The film guide drive 44 drives the second roller 43 to press the diaphragm against the first roller 42. At this time, the end of the diaphragm extends horizontally along the first direction. The sliding drive 33 drives the sliding platform 32 to move along the third direction until the diaphragm is embedded between the two fork rods 34. The winding drive 35 drives the fork rod 34 to rotate to achieve winding of the diaphragm. After the winding is stable, the clamp 21 releases the diaphragm.

[0069] In summary, the embodiment of the utility model provides a membrane peeling mechanism 100, which has the following beneficial effects:

[0070] The diaphragm is adsorbed by setting a negative pressure suction cup 17, and then the negative pressure suction cup 17 is driven to move by the film suction driving member 16 to achieve separation between the diaphragm and the electrode, and then the separated diaphragm is pressed toward the top support frame 15 by the clamping jaws 21, and the diaphragm at the clamping opening 18 on the top support frame 15 is clamped. At this time, the clamping jaws 21 will fold the diaphragm and then clamp it, while clamping two layers of diaphragm to improve the reliability of diaphragm clamping, and the negative pressure suction cup 17 is used to perform the separation operation, so as to realize the fully automated operation of separating the diaphragm from the electrode and clamping and fixing it, thereby improving the overall recovery efficiency.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A membrane peeling mechanism having a first direction and a second direction intersecting each other, characterized in that: The diaphragm peeling mechanism comprises: The film-separating assembly comprises a mounting plate, a film-absorbing member slidably mounted on the mounting plate, and a film-separating driving member connected to the film-absorbing member; the film-separating driving member drives the film-absorbing member to move in a first direction; the film-absorbing member comprises a top support frame movably connected to the mounting plate, a film-absorbing driving member connected to the top support frame, and a negative pressure suction cup connected to the film-absorbing driving member; the top support frame is connected to the film-separating driving member, the film-absorbing driving member connects the top support frame and the negative pressure suction cup, the film-absorbing driving member drives the negative pressure suction cup to move relative to the top support frame along the first direction, and the negative pressure suction cup is used for negative pressure adsorption of the diaphragm; a clamp is provided on the top support frame; A membrane clamping assembly, the membrane clamping assembly comprising a clamping jaw and a membrane clamping moving member connected to the clamping jaw; the clamping jaw corresponds to the setting position of the clamping opening, and the membrane clamping moving member drives the clamping jaw to move; in the second direction, the negative pressure suction cup and the clamping jaw are arranged on the same side of the top support frame, and the clamping jaw is used to press the diaphragm adsorbed by the negative pressure suction cup against the top support frame, and clamp the diaphragm through the clamping opening position; and A winding assembly is used to wind the diaphragm clamped by the clamping claws.

2. The membrane peeling mechanism according to claim 1, characterized in that: There are two film absorbing components, which are arranged opposite to each other on the mounting plate, and the film separation driving component drives the two film absorbing components to move closer to or away from each other.

3. The membrane peeling mechanism according to claim 1, characterized in that: The membrane peeling mechanism has a third direction, and the clamps are arranged on the top support frame at intervals along the third direction; The first direction, the second direction and the third direction intersect each other.

4. The membrane peeling mechanism according to claim 3, characterized in that: The clamping assembly further comprises a fixing frame; the clamping jaws are mounted on the fixing frame, the clamping jaws are arranged in one-to-one correspondence with the clamping openings, and the clamping jaws are arranged on the fixing frame at intervals along the third direction; The film clamping moving member includes a first film clamping driving member and a second film clamping driving member; the first film clamping driving member is connected to the fixed frame, and the first film clamping driving member drives the fixed frame to move along a first direction, and the second film clamping driving member is connected to the first film clamping driving member, and the second film clamping driving member drives the first film clamping driving member to move along a second direction.

5. The membrane peeling mechanism according to claim 3, characterized in that: The winding assembly includes a winding base plate, a sliding platform, a sliding drive, a fork rod and a winding drive; the sliding platform is slidably arranged on the winding base plate, the sliding drive connects the winding base plate and the sliding platform, the sliding drive drives the sliding platform to move along a third direction relative to the winding base plate, the fork rod is rotatably connected to the sliding platform, the winding drive is installed on the sliding platform, and the winding drive drives the fork rod to rotate.

6. The membrane peeling mechanism according to claim 5, characterized in that: The membrane stripping mechanism also includes a membrane guide assembly; The film guide assembly comprises a film guide frame, a first rotating roller, a second rotating roller, a film guide driving member and a rotating driving member; the film guide frame is located at a side of the winding assembly close to the film separation assembly, the first rotating roller is rotatably connected to the film guide frame, the second rotating roller is slidably arranged on the film guide frame, the film guide driving member connects the film guide frame and the second rotating roller, the film guide driving member drives the second rotating roller to move along the second direction, the second rotating roller is used to press the diaphragm against the first rotating roller, and the rotating driving member drives the first rotating roller and the second rotating roller to rotate; Wherein, in the second direction, the engaging position of the first roller and the second roller is flush with the setting position of the shift fork lever.

7. The membrane peeling mechanism according to claim 6, characterized in that: Brush bristles are arranged on the outer side of the first rotating roller.

8. The membrane peeling mechanism according to claim 1, characterized in that: The membrane stripping mechanism also includes a membrane cutting assembly; The film cutting assembly includes a film cutting drive, a film cutting frame and a cutting piece; the film cutting drive is connected to the film suction drive so that the film cutting assembly moves together with the negative pressure suction cup; the film cutting frame is connected to the film cutting drive, and the film cutting drive drives the film cutting frame to move along a first direction relative to the negative pressure suction cup, and the cutting piece is installed on a side of the film cutting frame close to the top support frame.

9. The membrane peeling mechanism according to claim 1, characterized in that: The diaphragm stripping mechanism also includes a pole piece fixing assembly; The pole piece fixing assembly includes a pole piece pressure seat and a pole piece fixing driving member; two pole piece pressure seats are provided, and the two pole piece pressure seats are relatively slidably arranged on the mounting plate; two pole piece fixing driving members are provided, and the pole piece fixing driving members are arranged in a one-to-one correspondence with the pole piece pressure seats, and the pole piece fixing driving member drives the two pole piece pressure seats to move closer to or away from each other.

10. The membrane peeling mechanism according to claim 1, characterized in that: The membrane peeling mechanism further comprises a film delivery assembly, and the film delivery assembly is arranged on a side of the top support frame away from the negative pressure suction cup; The film feeding assembly includes two film feeding rollers, a film feeding telescopic part and a film feeding driving part arranged in parallel; the film feeding roller is movably connected to the mounting plate, the film feeding telescopic part is connected to the film feeding roller, the film feeding telescopic part drives the two film feeding rollers to move closer to or away from each other, the film feeding driving part is connected to the film feeding roller, and the film feeding driving part is used to drive the film feeding roller to rotate.

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