A flexible battery sheet waste edge removal device and removal method, and battery production line

Abstract

The present invention discloses a flexible battery sheet waste edge removal device and a removal method thereof, and a battery production line, and relates to the field of flexible battery technology. The flexible battery sheet waste edge removal device includes a frame, and a conveying device and a waste edge removal device installed on the frame. The flexible battery sheet is first clamped by a lifting mechanism and a pressing mechanism, and then the waste edge of the flexible battery sheet is pushed and bent in two directions by a first pushing and bending mechanism and a second pushing and bending mechanism in turn, so that the waste edge is broken along the waste edge crack on the flexible battery sheet, effectively improving the waste edge removal efficiency, reducing labor costs and time costs, having a high degree of automation, being suitable for mass production, and having a uniform pushing and bending force to ensure the quality of the flexible battery sheet.

Description

Technical Field

[0001] The present invention belongs to the technical field of flexible batteries, and in particular relates to a flexible battery sheet waste edge removal device and a removal method thereof, and a battery production line. Background Art

[0002] At present, in the production process of flexible solar cell modules, after the silicon wafer and the protective glass are glued together and dried, the excess waste edges around them need to be removed. The traditional way to remove the waste edges is to break them off manually. This method is inefficient, has high labor and time costs, and a low degree of automation. It is not suitable for mass production. In addition, it is difficult to ensure uniform force during manual breaking, which can easily lead to defects such as broken edges, cracks, and jagged edges, affecting the quality of the battery cells.

[0003] It should be noted that this part of the present invention only provides background technology related to the present invention and does not necessarily constitute prior art or known technology. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art in that the manual breaking and removing of waste edges is inefficient, has high labor and time costs, has a low degree of automation, is not suitable for mass production, and has uneven breaking force, which affects the quality of battery cells. A flexible battery cell waste edge removal device and a removal method thereof, and a battery production line are provided. The flexible battery cell waste edge removal device first clamps the flexible battery cell through a jacking mechanism and a holding mechanism, and then pushes and bends the waste edge of the flexible battery cell in two directions through a first pushing and bend mechanism and a second pushing and bend mechanism in turn, so that the waste edge is broken along the waste edge crack on the flexible battery cell, thereby effectively improving the waste edge removal efficiency, reducing labor and time costs, having a high degree of automation, being suitable for mass production, and having uniform pushing and bend force, thereby ensuring the quality of the flexible battery cell.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the present invention provides a flexible battery sheet waste edge removal device, which is used to remove the waste edge of the flexible battery sheet, the flexible battery sheet is provided with a waste edge crack, the flexible battery sheet waste edge removal device comprises a frame and a conveying device and a waste edge removal device installed on the frame, the waste edge removal device comprises a jacking mechanism, a pressing mechanism, a first pushing and bending mechanism and a second pushing and bending mechanism, wherein the pressing mechanism, the first pushing and bending mechanism and the second pushing and bending mechanism are all arranged on the side of the conveying device, the conveying device is used to convey the flexible battery sheet to a preset position, the jacking mechanism is used to jack the flexible battery sheet so that the flexible battery sheet is separated from the conveying device and the waste edge crack is located on the outside of the jacking mechanism, the pressing mechanism is used to press the flexible battery sheet on the jacking mechanism and the waste edge crack is located on the outside of the pressing mechanism, the first pushing and bending mechanism is used to push and bend the waste edge along a first direction so that the waste edge is partially broken along the waste edge crack, and the second pushing and bending mechanism is used to push and bend the waste edge along a second direction so that the waste edge is completely broken along the waste edge crack, and the first direction is opposite to the second direction.

[0006] Preferably, the lifting mechanism includes a fixed seat, a first driving member, a connecting frame and two support plates. The fixed seat is connected to the frame. The first driving member is installed on the fixed seat and is simultaneously connected to the two support plates through the connecting frame. The two support plates are relatively arranged on both sides of the conveying device, and the support plates are used to support the flexible battery sheet.

[0007] Preferably, the waste edge removal device also includes a translation mechanism, which includes a mounting seat, a second driving member and a supporting frame. The mounting seat is connected to the frame, the second driving member is installed on the mounting seat and connected to the supporting frame, the pressing mechanism and the first pushing and bending mechanism are both installed on the supporting frame, and the driving direction of the second driving member is perpendicular to the conveying direction of the conveying device.

[0008] Preferably, the pressing mechanism comprises a third driving member and a pressing plate, the third driving member is mounted on the carrier and connected to the pressing plate, and the pressing plate is used to press the flexible battery sheet.

[0009] Preferably, the first pushing and breaking mechanism includes a fourth driving member and a first pushing and breaking knife. The fourth driving member is installed on the supporting frame and connected to the first pushing and breaking knife. The first pushing and breaking knife is arranged side by side with the pressing plate. The first pushing and breaking knife is used to push and break the waste edges.

[0010] Preferably, the waste edge removal device also includes a positioning mechanism, which includes a fifth driving member and an adjusting plate. The fifth driving member is installed on the supporting frame and connected to the adjusting plate. The fifth driving member is used to drive the adjusting plate to push the flexible battery sheet after the lifting mechanism completes the lifting of the flexible battery sheet, so as to ensure that the middle of the flexible battery sheet is aligned with the middle of the conveying device.

[0011] Preferably, there are two translation mechanisms, pressing mechanisms, first pushing and bending mechanisms and positioning mechanisms. The two translation mechanisms are relatively arranged on both sides of the conveying device. Each pressing mechanism, each first pushing and bending mechanism and each positioning mechanism are installed on a supporting frame of a translation mechanism. The two pressing mechanisms are respectively used to press the two sides of the flexible battery sheet on the lifting mechanism. The two first pushing and bending mechanisms are respectively used to push down the two waste edges located on both sides of the flexible battery sheet. The two positioning mechanisms are used to approach each other to push the flexible battery sheet to the middle of the two positioning mechanisms.

[0012] Preferably, the waste edge removal device further comprises a connecting plate, which is connected between the two pressing mechanisms and is used to press the flexible battery sheet.

[0013] Preferably, the second pushing and breaking mechanism includes a positioning seat, a sixth driving member and a second pushing and breaking knife. The positioning seat is connected to the frame, the sixth driving member is installed on the positioning seat and connected to the second pushing and breaking knife, and the second pushing and breaking knife is used to push and break the waste edges.

[0014] Preferably, the number of the second pushing and bending mechanisms is two, and the two second pushing and bending mechanisms are arranged oppositely on two sides of the conveying device.

[0015] Preferably, the conveying device includes a base, a carrying plate and two belt transmission mechanisms. The base is installed on the frame and connected to the carrying plate. The two belt transmission mechanisms are installed on the carrying plate and are relatively arranged at both ends of the carrying plate in the width direction. The belt transmission mechanisms are used to convey the flexible battery sheet along the length direction of the carrying plate.

[0016] Preferably, the flexible battery sheet is also provided with a plurality of crack marks, which are arranged on the inner side of the waste edge crack and are arranged parallel to and spaced from the waste edge crack. The pressing mechanism and the lifting mechanism are used together to clamp one or more crack marks near the waste edge crack.

[0017] Preferably, the flexible battery cell waste edge removal equipment also includes a rotating device, there are two waste edge removal devices, the two waste edge removal devices are arranged at intervals along the conveying direction of the conveying device, and the rotating device is arranged between the two waste edge removal devices. The first waste edge removal device is used to remove the waste edge in the length direction of the flexible battery cell, and the rotating device is used to drive the flexible battery cell to rotate 90 degrees. The second waste edge removal device is used to remove the waste edge in the width direction of the flexible battery cell.

[0018] Preferably, the rotating device includes a support seat, a seventh driving member, a lifting plate, an eighth driving member and a rotating frame, the support seat is connected to the frame, the seventh driving member is installed on the support seat and connected to the lifting plate, the eighth driving member is installed on the lifting plate and connected to the rotating frame, the conveying device is provided with a clearance opening, the position of the clearance opening corresponds to the position of the rotating frame, the seventh driving member is used to drive the rotating frame to pass through the clearance opening to lift the flexible battery sheet, and the eighth driving member is used to drive the flexible battery sheet to rotate through the rotating frame.

[0019] Preferably, the rotating device further comprises a vacuum pump and a suction cup, wherein the suction cup is mounted on the rotating frame and connected to the vacuum pump, and the vacuum pump is used to suck air to adsorb the flexible battery sheet onto the suction cup.

[0020] Preferably, the flexible battery cell waste edge removal equipment also includes a sensor and a material stop switch. The material stop switch is installed on the side of the conveying device. The sensor is electrically connected to the material stop switch and the conveying device at the same time. The sensor is used to control the conveying device to pause when it detects that the flexible battery cell has moved to a preset position, and control the material stop switch to stop the flexible battery cell.

[0021] Preferably, the flexible battery sheet waste edge removal device further comprises a collection box, the frame is provided with a waste opening, the collection box is arranged below the waste opening, and the waste opening is used for the waste edges to pass through.

[0022] Preferably, an auxiliary crack is provided on a side of the flexible battery sheet away from the waste edge crack, and the auxiliary crack is aligned with the waste edge crack.

[0023] In a second aspect, the present invention provides a method for removing waste edges of a flexible battery sheet, which is applied to the above-mentioned waste edges of a flexible battery sheet. The method for removing waste edges of a flexible battery sheet comprises:

[0024] A straight line is drawn on the front edge of the flexible battery sheet to form a waste edge crack;

[0025] Using a conveying device to deliver the flexible battery sheet to a preset position;

[0026] The flexible battery sheet is lifted by using a lifting mechanism to separate the flexible battery sheet from the conveying device and to make the waste edge crack be located outside the lifting mechanism;

[0027] The flexible battery sheet is pressed onto the lifting mechanism by using a pressing mechanism, and the waste edge crack is located outside the pressing mechanism;

[0028] Using a first pushing and breaking mechanism to push and break the scrap edge along a first direction, so that the scrap edge is broken along the scrap edge crack portion;

[0029] The scrap edge is pushed and broken along a second direction by using a second pushing and breaking mechanism, so that the scrap edge is completely broken along the scrap edge crack, wherein the first direction is opposite to the second direction.

[0030] Preferably, after the step of performing a straight line scribing on the front edge of the flexible battery sheet to form a waste edge crack, the removal method of the flexible battery sheet waste edge removal device further comprises:

[0031] A straight line is drawn on the back edge of the flexible battery sheet to form an auxiliary crack, wherein the auxiliary crack is aligned with the waste edge crack.

[0032] In a third aspect, the present invention provides a battery production line, comprising the above-mentioned flexible battery sheet waste edge removal equipment.

[0033] Beneficial effects:

[0034] Through research, it is found that in the production process of flexible battery cells, it is necessary to remove the excess waste edges around them. If the waste edges are removed by manual breaking in the prior art, the efficiency is low, the labor cost and time cost are high, the degree of automation is low, and it is not suitable for mass production. In addition, it is difficult to ensure uniform force during manual breaking, which easily leads to defects such as edge collapse, cracking, and jagged edges, which affect the quality of the battery cells. Based on this, further research is conducted and the present invention is proposed.

[0035] The present invention adopts the above-mentioned technical scheme, especially first clamping the flexible battery sheet through the lifting mechanism and the pressing mechanism, and then pushing and bending the waste edge of the flexible battery sheet in two directions through the first pushing and bending mechanism and the second pushing and bending mechanism in turn, so that the waste edge is broken along the waste edge cracks on the flexible battery sheet, effectively improving the waste edge removal efficiency, reducing labor costs and time costs, with a high degree of automation, suitable for mass production, and uniform pushing and bending force to ensure the quality of the flexible battery sheet.

[0036] In the removal method of the flexible battery sheet waste edge removal device of the present invention, a straight line is firstly drawn on the front edge of the flexible battery sheet to form a waste edge crack; then the flexible battery sheet is delivered to a preset position by a conveying device; then the flexible battery sheet is clamped by a lifting mechanism and a pressing mechanism so that the waste edge crack is located on the outside of the lifting mechanism and the pressing mechanism; then the waste edge of the flexible battery sheet is pushed and bent in two directions by a first pushing and bending mechanism and a second pushing and bending mechanism in turn; the automated removal of the waste edge is realized, the waste edge removal efficiency is high, time and labor are saved, it is suitable for mass production, and the quality of the flexible battery sheet is guaranteed.

[0037] The battery production line of the present invention can realize automatic removal of waste edges during the production process of flexible battery sheets, and the waste edge removal efficiency is high, thereby effectively improving production efficiency and achieving good economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A schematic structural diagram of a flexible battery sheet from one perspective applied to the flexible battery sheet waste edge removal device provided by an embodiment of the present invention;

[0040] Figure 2 A schematic structural diagram of a flexible battery sheet from another perspective applied to the flexible battery sheet waste edge removal device provided by an embodiment of the present invention;

[0041] Figure 3 A schematic diagram of the structure of a flexible battery sheet waste edge removal device provided in an embodiment of the present invention;

[0042] Figure 4 A schematic diagram of the structure of the connection between the rotating device and the frame in the flexible battery sheet waste edge removal device provided by an embodiment of the present invention;

[0043] Figure 5 A schematic diagram of the structure of a conveying device in a flexible battery sheet waste edge removal device provided in an embodiment of the present invention;

[0044] Figure 6 A schematic structural diagram of a waste edge removal device from one perspective in a flexible battery sheet waste edge removal device provided in an embodiment of the present invention;

[0045] Figure 7 A schematic structural diagram of another perspective of a waste edge removal device in a flexible battery sheet waste edge removal device provided in an embodiment of the present invention;

[0046] Figure 8 for Figure 4 Structural diagram of the middle lifting mechanism;

[0047] Fig. 9 for Figure 4 A schematic diagram of the structure of the second push-break mechanism;

[0048] Fig.10 A schematic diagram of the structure of a rotating device in a flexible battery sheet waste edge removal device provided in an embodiment of the present invention;

[0049] Fig.11 A schematic diagram of the structure of a collection box in a flexible battery sheet waste edge removal device provided in an embodiment of the present invention.

[0050] Description of reference numerals:

[0051] 10-flexible battery sheet waste edge removal device; 100-frame; 110-waste opening; 200-conveying device; 210-base; 220-carrying plate; 221-giving opening; 230-belt transmission mechanism; 300-waste edge removal device; 310-lifting mechanism; 311-fixed seat; 312-first driving member; 313-connecting frame; 314-support plate; 320-pressing mechanism; 321-third driving member; 322-pressing plate; 330-first pushing and breaking mechanism; 331-fourth driving member; 332-first pushing and breaking knife; 340-second pushing and breaking mechanism; 341-positioning seat; 342-sixth driving member; 3 43-second push-breaking knife; 350-translation mechanism; 351-mounting seat; 352-second driving member; 353-carrying frame; 360-positioning mechanism; 361-fifth driving member; 362-positioning plate; 400-rotating device; 410-support seat; 420-seventh driving member; 430-lifting plate; 440-eighth driving member; 450-rotating frame; 460-vacuum pump; 470-suction cup; 500-sensor; 600-material stop switch; 700-collection box; 20-flexible battery sheet; 21-waste edge crack; 22-crack crack; 23-first crack; 24-second crack; 25-auxiliary crack. DETAILED DESCRIPTION

[0052] In the present invention, unless otherwise specified, directional words such as "upper, lower, left, right" are generally understood in conjunction with the directions shown in the drawings and actual applications.

[0053] 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 one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] In the present invention, 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.

[0055] The endpoints and any values ​​of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article. Among them, the terms "optional" and "optional" all mean that they may be included or not included (or may be present or not).

[0056] Please refer to Figures 1 to 3 In the first aspect, an embodiment of the present invention provides a flexible battery sheet waste edge removal device 10, which is used to remove the waste edge of a flexible battery sheet 20. It can effectively improve the waste edge removal efficiency, reduce labor costs and time costs, has a high degree of automation, is suitable for mass production, and has a uniform pushing force to ensure the quality of the flexible battery sheet 20.

[0057] It should be noted that the flexible battery sheet 20 is a solar cell. In the production process of the flexible solar cell sheet assembly, it is necessary to first remove the waste edges around the flexible battery sheet 20, then break the flexible battery sheet 20 into multiple small pieces, and then bond a preset number of small pieces to the flexible circuit board, with a certain gap between adjacent small pieces, to form a flexible solar cell sheet assembly. In this way, when the flexible solar cell sheet assembly needs to be used, the flexible circuit board is unfolded to achieve the flattening and unfolding of multiple small pieces, so as to increase the contact area between the small pieces and the sunlight, thereby realizing the photovoltaic power generation function of the flexible solar cell sheet assembly and ensuring the power generation efficiency; when the flexible solar cell sheet assembly is not needed, the flexible circuit board is rolled up for easy storage and saves space. In this process, since there is a certain gap between adjacent small pieces, the small pieces will not interfere with the rolling of the flexible circuit board, which is convenient for the storage of the flexible solar cell sheet assembly.

[0058] Furthermore, the flexible battery sheet 20 is arranged in a rectangular shape, and the flexible battery sheet 20 needs to be scribed with straight lines after production is completed to form waste edge cracks 21 and split cracks 22, wherein the waste edge cracks 21 facilitate the splitting of the waste edges to improve the waste edge removal efficiency, and the split cracks 22 facilitate the splitting between multiple small pieces to improve the small piece preparation efficiency. Specifically, there are four waste edge cracks 21, that is, the flexible battery sheet 20 has four waste edges, and the four waste edges are respectively arranged around the flexible battery sheet 20. The four waste edge cracks 21 together form a regular rectangle to ensure the uniformity of subsequent small piece breaking; and there are multiple crack cracks 22, and the multiple crack cracks 22 include multiple first cracks 23 and multiple second cracks 24. The multiple first cracks 23 are arranged in parallel and at equal intervals, and the multiple second cracks 24 are arranged in parallel and at equal intervals. The first cracks 23 are perpendicular to the second cracks 24. The multiple first cracks 23 and the multiple second cracks 24 work together to form a grid-like stress notch on the flexible battery sheet 20, which is convenient for breaking into small pieces.

[0059] In this embodiment, an auxiliary crack 25 is provided on one side of the flexible battery sheet 20 away from the waste edge crack 21, and the auxiliary crack 25 is aligned with the waste edge crack 21 to improve the breaking effect of the waste edge and avoid defects such as edge collapse, cracking, and jagged edges. Specifically, there are four auxiliary cracks 25, and each auxiliary crack 25 is aligned with a waste edge crack 21 to improve the waste edge removal efficiency and waste edge removal effect.

[0060] The flexible battery sheet waste edge removal device 10 includes a frame 100 and a conveying device 200 and a waste edge removal device 300 installed on the frame 100. The conveying device 200 is used to realize the feeding function of the flexible battery sheet 20, and the waste edge removal device 300 is used to remove the waste edge of the flexible battery sheet 20 during the feeding process.

[0061] Please refer to Figures 4 to 11The scrap edge removal device 300 includes a lifting mechanism 310, a holding mechanism 320, a first pushing and bending mechanism 330, and a second pushing and bending mechanism 340. The holding mechanism 320, the first pushing and bending mechanism 330, and the second pushing and bending mechanism 340 are all arranged on the side of the conveying device 200. The conveying device 200 is used to convey the flexible battery sheet 20 to a preset position; the lifting mechanism 310 is used to lift the flexible battery sheet 20 at the preset position, so that the flexible battery sheet 20 is separated from the conveying device 200, and the scrap edge crack 21 is located outside the lifting mechanism 310, so as to prevent the lifting mechanism 310 from interfering with the fracture of the scrap edge. The pressing mechanism 320 is used to press the flexible battery sheet 20 onto the lifting mechanism 310, and to make the waste edge crack 21 located outside the pressing mechanism 320, so as to prevent the pressing mechanism 320 from interfering with the breaking of the waste edge; the first pushing and breaking mechanism 330 is used to push and break the waste edge along the first direction, so as to make the waste edge partially break along the waste edge crack 21; the second pushing and breaking mechanism 340 is used to push and break the waste edge along the second direction, so as to make the waste edge completely break along the waste edge crack 21. In this way, the waste edge removal efficiency can be effectively improved, the labor cost and time cost can be reduced, the degree of automation is high, it is suitable for mass production, and the pushing and breaking force is uniform, so as to ensure the quality of the flexible battery sheet 20.

[0062] Specifically, since the silicon wafer and the protective glass in the flexible battery sheet 20 are glued together, the flexible battery sheet 20 as a whole has a certain flexibility, so even if a waste edge crack 21 is drawn on the flexible battery sheet 20, it is highly likely that the waste edge cannot be completely broken by pushing and bending in only one direction. Therefore, in the present invention, the first pushing and bending mechanism 330 is first used to push and bend the waste edge along the first direction, and then the second pushing and bending mechanism 340 is used to push and bend the waste edge along the second direction. The first direction is opposite to the second direction, so as to ensure that the waste edge is completely broken along the waste edge crack 21, thereby ensuring the waste edge removal effect. In this embodiment, the first direction is vertically downward, and the second direction is vertically upward.

[0063] The lifting mechanism 310 includes a fixed seat 311, a first driving member 312, a connecting frame 313 and two support plates 314. The fixed seat 311 is connected to the frame 100, the first driving member 312 is installed on the fixed seat 311, and is connected to the two support plates 314 at the same time through the connecting frame 313, and the first driving member 312 is used to synchronously drive the two support plates 314 to rise or fall through the connecting frame 313, so as to lift the flexible battery sheet 20 from the conveying device 200 or put the flexible battery sheet 20 back to the conveying device 200. Specifically, the width of the flexible battery sheet 20 is greater than the width of the conveying device 200, and the two support plates 314 are relatively arranged on both sides of the conveying device 200, and the support plates 314 are used to support the flexible battery sheet 20. When the first driving member 312 synchronously drives the two support plates 314 to rise to a certain height through the connecting frame 313, the two support plates 314 simultaneously lift the flexible battery sheet 20 on the conveying device 200 to realize the lifting function of the flexible battery sheet 20, so that the flexible battery sheet 20 is separated from the conveying device 200.

[0064] Preferably, the waste edge removal device 300 further includes a translation mechanism 350, which includes a mounting seat 351, a second driving member 352 and a carrier 353. The mounting seat 351 is connected to the frame 100, the second driving member 352 is mounted on the mounting seat 351 and is connected to the carrier 353, the pressing mechanism 320 and the first pushing and bending mechanism 330 are both mounted on the carrier 353, the driving direction of the second driving member 352 is perpendicular to the conveying direction of the conveying device 200, and the second driving member 352 is used to synchronously drive the pressing mechanism 320 and the first pushing and bending mechanism 330 to move through the carrier 353, so that the pressing mechanism 320 and the first pushing and bending mechanism 330 are close to or away from the conveying device 200, that is, the pressing mechanism 320 and the first pushing and bending mechanism 330 are close to or away from the flexible battery sheet 20, so as to facilitate the adjustment of the positions of the pressing mechanism 320 and the first pushing and bending mechanism 330.

[0065] The pressing mechanism 320 includes a third driving member 321 and a pressing plate 322. The third driving member 321 is mounted on the carrier 353 and connected to the pressing plate 322. The third driving member 321 is used to drive the pressing plate 322 to descend or ascend, so as to press or release the flexible battery sheet 20. Specifically, the position of the pressing plate 322 corresponds to the position of the support plate 314. The pressing plate 322 is used to press the flexible battery sheet 20 so that the flexible battery sheet 20 is stably clamped between the pressing plate 322 and the support plate 314, and the relative positions of the flexible battery sheet 20, the pressing plate 322 and the support plate 314 are fixed, so as to facilitate the subsequent removal of waste edges.

[0066] The first pushing and breaking mechanism 330 includes a fourth driving member 331 and a first pushing and breaking knife 332. The fourth driving member 331 is mounted on the carrier 353 and connected to the first pushing and breaking knife 332. The fourth driving member 331 is used to drive the first pushing and breaking knife 332 to descend or ascend to achieve pushing and breaking or resetting of the waste edge. Specifically, the first pushing and breaking knife 332 is arranged side by side with the pressing plate 322. The first pushing and breaking knife 332 is used to push and break the waste edge to apply a downward holding force to the waste edge, so that the waste edge is partially broken along the waste edge crack 21.

[0067] Preferably, the waste edge removal device 300 also includes a positioning mechanism 360, and the positioning mechanism 360 includes a fifth driving member 361 and a positioning plate 362. The fifth driving member 361 is installed on the carrier 353 and connected to the positioning plate 362. The fifth driving member 361 is used to drive the positioning plate 362 to move to adjust the position of the flexible battery sheet 20 to ensure the waste edge removal effect. Specifically, the fifth driving member 361 is used to drive the positioning plate 362 to push the flexible battery sheet 20 after the lifting mechanism 310 lifts the flexible battery sheet 20, so as to ensure that the middle of the flexible battery sheet 20 is aligned with the middle of the conveying device 200, so as to facilitate the subsequent precise pushing and bending of the waste edge of the flexible battery sheet 20.

[0068] In this embodiment, the number of the translation mechanism 350, the holding mechanism 320, the first pushing and bending mechanism 330 and the positioning mechanism 360 are all two. The two translation mechanisms 350 are relatively arranged on both sides of the conveying device 200, and each holding mechanism 320, each first pushing and bending mechanism 330 and each positioning mechanism 360 are installed on the carrier 353 of a translation mechanism 350. The two positioning mechanisms 360 are used to approach each other to push the flexible battery sheet 20 to the middle of the two positioning mechanisms 360 to achieve the centering function, so that the subsequent two first pushing and bending mechanisms 330 can push and bend the two waste edges on both sides of the flexible battery sheet 20 respectively. The two holding mechanisms 320 are respectively used to hold the two sides of the flexible battery sheet 20 on the lifting mechanism 310 to improve the positioning effect of the flexible battery sheet 20, prevent the flexible battery sheet 20 from being displaced in the subsequent process of pushing and bending the waste edges, and ensure the waste edge removal effect. The two first pushing and bending mechanisms 330 are respectively used to push and bend the two waste edges located on both sides of the flexible battery sheet 20 downward to improve the waste edge removal efficiency.

[0069] In this embodiment, since the flexible battery sheet 20 is also provided with a plurality of crack marks 22, the crack marks 22 are arranged on the inner side of the waste edge crack 21 and are arranged parallel to and spaced from the waste edge crack 21, the pressing plate 322 of the pressing mechanism 320 and the supporting plate 314 of the lifting mechanism 310 are used together to clamp one or more crack marks 22 near the waste edge crack 21 to increase the strength of the flexible battery sheet 20 at the one or more crack marks 22, prevent the flexible battery sheet 20 from breaking at this part of the crack marks 22 during the process of pushing and breaking the waste edge, and ensure the waste edge removal effect.

[0070] In another embodiment, the scrap edge removal device 300 further includes a connecting plate, which is connected between the two holding mechanisms 320, and is used to hold the flexible battery sheet 20, so as to increase the strength of the flexible battery sheet 20 at the inner side of the scrap edge crack 21, and prevent the flexible battery sheet 20 from breaking from the inside during the process of pushing and breaking the scrap edge, thereby ensuring the scrap edge removal effect. Specifically, the connecting plate is a retractable plate; when the two holding mechanisms 320 approach each other as the two translation mechanisms 350, the connecting plate contracts; when the two holding mechanisms 320 move away from each other as the two translation mechanisms 350 move away from each other, the connecting plate extends.

[0071] The second pushing and breaking mechanism 340 includes a positioning seat 341, a sixth driving member 342 and a second pushing and breaking knife 343. The positioning seat 341 is connected to the frame 100, the sixth driving member 342 is installed on the positioning seat 341 and connected to the second pushing and breaking knife 343, and the sixth driving member 342 is used to drive the second pushing and breaking knife 343 to rise or fall, so as to achieve pushing and breaking or resetting of the waste edge. Specifically, the second pushing and breaking knife 343 is arranged side by side with the support plate 314, and the second pushing and breaking knife 343 is used to push and break the waste edge to apply an upward holding force to the waste edge, so that the waste edge is completely broken along the waste edge crack 21.

[0072] Correspondingly, there are two second pushing and bending mechanisms 340, which are relatively arranged on both sides of the conveying device 200. The two second pushing and bending mechanisms 340 are respectively used to push up the two waste edges located on both sides of the flexible battery sheet 20 to improve the waste edge removal efficiency.

[0073] The conveying device 200 includes a base 210, a carrier plate 220 and two belt transmission mechanisms 230. The base 210 is mounted on the frame 100 and connected to the carrier plate 220. The two belt transmission mechanisms 230 are both mounted on the carrier plate 220 and are relatively arranged at both ends of the carrier plate 220 in the width direction. The belt transmission mechanism 230 is used to convey the flexible battery sheet 20 along the length direction of the carrier plate 220, that is, the conveying direction of the belt transmission mechanism 230 is the same as the length direction of the carrier plate 220. Specifically, the two support plates 314 in the lifting mechanism 310 are relatively arranged on both sides of the carrier plate 220 in the width direction, and the connecting frame 313 in the lifting mechanism 310 is arranged below the carrier plate 220; the two translation mechanisms 350 are relatively arranged on both sides of the carrier plate 220 in the width direction; and the two second pushing and breaking mechanisms 340 are relatively arranged on both sides of the carrier plate 220 in the width direction.

[0074] Preferably, the flexible battery sheet waste edge removal device 10 further includes a rotating device 400, the number of the waste edge removal devices 300 is two, the two waste edge removal devices 300 are arranged at intervals along the conveying direction of the conveying device 200, and the rotating device 400 is arranged between the two waste edge removal devices 300. Specifically, the first waste edge removal device 300 is used to remove the waste edge in the length direction of the flexible battery sheet 20 (and remove the two waste edges on both sides of the length direction of the flexible battery sheet 20 at the same time), the rotating device 400 is used to drive the flexible battery sheet 20 to rotate 90 degrees, and the second waste edge removal device 300 is used to remove the waste edge in the width direction of the flexible battery sheet 20 (and remove the two waste edges on both sides of the width direction of the flexible battery sheet 20 at the same time). In this way, the four waste edges on the flexible battery sheet 20 can be removed in one feeding process of the conveying device 200, with a high degree of automation and high waste edge removal efficiency.

[0075] The rotating device 400 includes a support seat 410, a seventh driving member 420, a lifting plate 430, an eighth driving member 440 and a rotating frame 450. The support seat 410 is connected to the frame 100, the seventh driving member 420 is mounted on the support seat 410 and connected to the lifting plate 430, and the seventh driving member 420 is used to drive the lifting plate 430 to rise or fall. The eighth driving member 440 is mounted on the lifting plate 430 and connected to the rotating frame 450, and the eighth driving member 440 is used to drive the rotating frame 450 to rotate. Specifically, the bearing plate 220 of the conveying device 200 is provided with a clearance opening 221, and the clearance opening 221 is located between the two belt transmission mechanisms 230, and the position of the clearance opening 221 corresponds to the position of the rotating frame 450. The seventh driving member 420 is used to drive the rotating frame 450 to pass through the clearance opening 221 through the lifting plate 430 and the eighth driving member 440 to lift the flexible battery sheet 20 so that the flexible battery sheet 20 is separated from the conveying device 200; the eighth driving member 440 is used to drive the flexible battery sheet 20 to rotate 90 degrees through the rotating frame 450 to adjust the orientation of the flexible battery sheet 20, so as to facilitate the subsequent removal of the waste edge in the width direction of the flexible battery sheet 20; the seventh driving member 420 is also used to drive the rotating frame 450 to retract the clearance opening 221 through the lifting plate 430 and the eighth driving member 440 to place the flexible battery sheet 20 back on the conveying device 200, so as to facilitate the conveying device 200 to drive the flexible battery sheet 20 to continue to move.

[0076] Preferably, the rotating device 400 further includes a vacuum pump 460 and a suction cup 470. The suction cup 470 is mounted on the rotating frame 450 and connected to the vacuum pump 460. The vacuum pump 460 is used to suck air to adsorb the flexible battery sheet 20 on the suction cup 470, thereby fixing the relative position of the flexible battery sheet 20 and the suction cup 470, preventing the flexible battery sheet 20 from being displaced or even accidentally detached from the rotating device 400 during the process of the rotating device 400 driving the flexible battery sheet 20 to rotate, thereby ensuring the rotation effect.

[0077] Preferably, the flexible battery sheet waste edge removal device 10 also includes a sensor 500 and a material stop switch 600. The material stop switch 600 is installed on the side of the conveying device 200, and the sensor 500 is electrically connected to the material stop switch 600 and the conveying device 200 at the same time. Specifically, the sensor 500 is used to control the conveying device 200 to pause when it detects that the flexible battery sheet 20 moves to a preset position, and control the material stop switch 600 to stop the flexible battery sheet 20, so as to ensure that the flexible battery sheet 20 stops at the preset position, so that the subsequent lifting mechanism 310 can lift the flexible battery sheet 20 located at the preset position upward.

[0078] In this embodiment, the flexible battery sheet waste edge removal device 10 is used to continuously remove waste edges from multiple flexible battery sheets 20. The number of sensors 500 and material stop switches 600 is four, each sensor 500 is connected to a material stop switch 600, and a group of material stop elements are formed. Among them, the first group of material stop elements is used to pause the flexible battery sheet 20 before it enters the corresponding area of ​​the first waste edge removal device 300 to realize the material stop function of the feeding station; the second group of material stop elements is used to pause the flexible battery sheet 20 when it reaches the preset position of the first waste edge removal device 300, so as to remove the waste edge in the length direction of the flexible battery sheet 20; the third group of material stop elements is used to pause the flexible battery sheet 20 when it reaches the clearance port 221, so that the rotating device 400 drives the flexible battery sheet 20 to rotate 90 degrees; the fourth group of material stop elements is used to pause the flexible battery sheet 20 when it reaches the preset position of the second waste edge removal device 300, so as to remove the waste edge in the width direction of the flexible battery sheet 20.

[0079] Preferably, the flexible battery sheet waste edge removal device 10 further includes a collection box 700. The frame 100 is provided with a waste opening 110, and the position of the waste opening 110 corresponds to the pushing and bending position of the first pushing and bending mechanism 330 and the second pushing and bending mechanism 340 on the flexible battery sheet 20, so that the waste edges fall out of the waste opening 110 under the action of gravity. Specifically, the collection box 700 is arranged below the waste opening 110, and the waste opening 110 is used for the waste edges to pass through, so as to realize the collection of waste.

[0080] In this embodiment, the first driving member 312, the second driving member 352, the third driving member 321, the fourth driving member 331, the fifth driving member 361, the sixth driving member 342 and the seventh driving member 420 are all cylinders, and the eighth driving member 440 is a motor, but it is not limited to this. In other embodiments, the first driving member 312, the second driving member 352, the third driving member 321, the fourth driving member 331, the fifth driving member 361, the sixth driving member 342 and the seventh driving member 420 can all be hydraulic cylinders or electric cylinders, and the eighth driving member 440 can be a hydraulic motor or a pneumatic motor. There is no specific limitation on the types of the first driving member 312, the second driving member 352, the third driving member 321, the fourth driving member 331, the fifth driving member 361, the sixth driving member 342, the seventh driving member 420 and the eighth driving member 440.

[0081] In a second aspect, an embodiment of the present invention provides a method for removing waste edges of a flexible battery sheet, which is applied to the above-mentioned device 10 for removing waste edges of a flexible battery sheet.

[0082] The removal method of the flexible battery sheet waste edge removal device comprises the following steps:

[0083] Step S110 : Scribing a straight line on the front edge of the flexible battery sheet 20 to form a waste edge crack 21 .

[0084] It should be noted that in step S110 , the flexible battery sheet 20 is pre-processed by respectively marking four waste edge cracks 21 around the front side of the flexible battery sheet 20 to plan out the areas where the four waste edges are located, so as to facilitate the subsequent removal of the waste edges.

[0085] Step S120 : a straight line is drawn on the back edge of the flexible battery sheet 20 to form an auxiliary crack 25 , wherein the auxiliary crack 25 is aligned with the waste edge crack 21 .

[0086] It should be noted that in step S120, in order to improve the breaking effect of the waste edge and avoid defects such as chipped edges, cracks, and jagged edges, four auxiliary cracks 25 are respectively scratched around the back side of the flexible battery sheet 20, and each auxiliary crack 25 is aligned with a waste edge crack 21 to improve the waste edge removal efficiency and waste edge removal effect.

[0087] Step S130: using the conveying device 200 to convey the flexible battery sheet 20 to a preset position.

[0088] It should be noted that in step S130, the flexible battery sheet 20 is placed on the conveying device 200, and the belt transmission mechanism 230 of the conveying device 200 is used to drive the flexible battery sheet 20 forward until the flexible battery sheet 20 moves to a preset position. During this process, the sensor 500 is used to detect the moving position of the flexible battery sheet 20, and the stop switch 600 is used to stop the flexible battery sheet 20 to ensure that the flexible battery sheet 20 stops at the preset position.

[0089] Step S140 : using the lifting mechanism 310 to lift the flexible battery sheet 20 , so that the flexible battery sheet 20 is separated from the conveying device 200 , and the waste edge crack 21 is located outside the lifting mechanism 310 .

[0090] It should be noted that in step S140, the first driving member 312 of the lifting mechanism 310 is controlled to synchronously drive the two support plates 314 to rise through the connecting frame 313, so as to lift the flexible battery sheet 20 located on the conveying device 200 upward and make it separate from the conveying device 200. During this process, the waste edge crack 21 is located on the outer side of the support plate 314.

[0091] Step S150 : using the pressing mechanism 320 to press the flexible battery sheet 20 onto the lifting mechanism 310 , and making the waste edge crack 21 located outside the pressing mechanism 320 .

[0092] It should be noted that in step S150, the third driving members 321 of the two pressing mechanisms 320 are controlled simultaneously to drive the pressing plate 322 to descend, so as to press both sides of the flexible battery sheet 20 on the two support plates 314 at the same time, and fix the relative positions of the flexible battery sheet 20, the pressing plate 322 and the support plate 314. During this process, the waste edge crack 21 is located on the outer side of the pressing plate 322.

[0093] Step S160 : using the first pushing and breaking mechanism 330 to push and break the scrap edge along the first direction, so as to partially break the scrap edge along the scrap edge crack 21 .

[0094] It should be noted that in step S160, the fourth driving members 331 of the two first pushing and bending mechanisms 330 are first controlled simultaneously to drive the first pushing and bending knives 332 to descend, so as to push down the two waste edges located on both sides of the length direction of the flexible battery sheet 20 at the same time, so that the two waste edges are partially broken; then, the two first pushing and bending mechanisms 330 are simultaneously controlled to reset.

[0095] Step S170: using the second pushing and bending mechanism 340 to push and bend the scrap edge along the second direction, so that the scrap edge is completely broken along the scrap edge crack 21, wherein the first direction is opposite to the second direction.

[0096] It should be noted that in step S170, the sixth driving members 342 of the two second pushing and bending mechanisms 340 are first controlled simultaneously to drive the second pushing and bending knives 343 to rise, so as to push the two waste edges located on both sides of the length direction of the flexible battery sheet 20 upward at the same time, so that the two waste edges are completely broken and fall off the flexible battery sheet 20; then, the two second pushing and bending mechanisms 340 are controlled simultaneously to reset.

[0097] It is worth noting that after step S170, the pressing mechanism 320 is first controlled to reset upward to release the flexible battery sheet 20; then the lifting mechanism 310 is controlled to reset downward to place the flexible battery sheet 20 back on the conveying device 200; then the conveying device 200 is used to send the flexible battery sheet 20 to the rotation station, and the rotating device 400 is used to drive the flexible battery sheet 20 to rotate 90 degrees; then the conveying device 200 is used to send the flexible battery sheet 20 to the preset position corresponding to the second waste edge removal device 300, and steps S140 to S170 are repeated to remove the two waste edges located on both sides of the width direction of the flexible battery sheet 20 to complete the waste edge removal operation.

[0098] In a third aspect, an embodiment of the present invention provides a battery production line, including the above-mentioned flexible battery sheet waste edge removal device 10.

[0099] In the flexible battery sheet waste edge removal device 10 provided in an embodiment of the present invention, a pressing mechanism 320, a first pushing and bending mechanism 330 and a second pushing and bending mechanism 340 are all arranged on the side of the conveying device 200. The conveying device 200 is used to deliver the flexible battery sheet 20 to a preset position. The lifting mechanism 310 is used to lift the flexible battery sheet 20 so that the flexible battery sheet 20 is separated from the conveying device 200 and the waste edge crack 21 is located on the outside of the lifting mechanism 310. The pressing mechanism 320 is used to press the flexible battery sheet 20 on the lifting mechanism 310 and the waste edge crack 21 is located on the outside of the pressing mechanism 320. The first pushing and bending mechanism 330 is used to push and bend the waste edge along a first direction so that the waste edge is partially broken along the waste edge crack 21. The second pushing and bending mechanism 340 is used to push and bend the waste edge along a second direction so that the waste edge is completely broken along the waste edge crack 21. The first direction is opposite to the second direction. It can effectively improve the efficiency of waste edge removal, reduce labor costs and time costs, has a high degree of automation, is suitable for mass production, and has uniform pushing and breaking force to ensure the quality of the flexible battery sheet 20.

[0100] The method for removing the waste edge of a flexible battery sheet provided by the embodiment of the present invention firstly makes a straight line on the front edge of the flexible battery sheet 20 to form a waste edge crack 21; then uses the conveying device 200 to deliver the flexible battery sheet 20 to a preset position; then uses the lifting mechanism 310 and the pressing mechanism 320 to clamp the flexible battery sheet 20 so that the waste edge crack 21 is located outside the lifting mechanism 310 and the pressing mechanism 320; then uses the first pushing and bending mechanism 330 and the second pushing and bending mechanism 340 in turn to push and bend the waste edge of the flexible battery sheet 20 in both directions. The method can realize the automated removal of waste edges, has high waste edge removal efficiency, saves time and labor, is suitable for mass production, and ensures the quality of the flexible battery sheet 20.

[0101] The battery production line provided by the embodiment of the present invention can realize automatic removal of waste edges during the production process of the flexible battery sheet 20, and the waste edge removal efficiency is high, thereby effectively improving production efficiency and achieving good economic benefits.

[0102] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various technical features in any other suitable manner, and these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A flexible battery sheet waste edge removal device, characterized in that: Used to remove waste edges of flexible battery sheets, the flexible battery sheets are marked with waste edge cracks, the flexible battery sheet waste edge removal equipment includes a frame and a conveying device and a waste edge removal device installed on the frame, the waste edge removal device includes a jacking mechanism, a pressing mechanism, a first pushing and bending mechanism and a second pushing and bending mechanism, wherein the pressing mechanism, the first pushing and bending mechanism and the second pushing and bending mechanism are all arranged on the side of the conveying device, the conveying device is used to deliver the flexible battery sheet to a preset position, the jacking mechanism is used to jack up the flexible battery sheet so that the flexible battery sheet is separated from the conveying device and the waste edge crack is located on the outside of the jacking mechanism, the pressing mechanism is used to press the flexible battery sheet on the jacking mechanism and the waste edge crack is located on the outside of the pressing mechanism, the first pushing and bending mechanism is used to push and bend the waste edge along a first direction so that the waste edge is partially broken along the waste edge crack, the second pushing and bend mechanism is used to push and bend the waste edge along a second direction so that the waste edge is completely broken along the waste edge crack, and the first direction is opposite to the second direction.

2. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The lifting mechanism includes a fixed seat, a first driving member, a connecting frame and two support plates. The fixed seat is connected to the frame. The first driving member is installed on the fixed seat and is simultaneously connected to the two support plates through the connecting frame. The two support plates are relatively arranged on both sides of the conveying device, and the support plates are used to support the flexible battery sheet.

3. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The waste edge removal device also includes a translation mechanism, which includes a mounting seat, a second driving member and a supporting frame. The mounting seat is connected to the frame, the second driving member is installed on the mounting seat and connected to the supporting frame, the pressing mechanism and the first pushing and bending mechanism are both installed on the supporting frame, and the driving direction of the second driving member is perpendicular to the conveying direction of the conveying device.

4. The flexible battery sheet waste edge removal device according to claim 3, characterized in that: The pressing mechanism includes a third driving member and a pressing plate. The third driving member is mounted on the supporting frame and connected to the pressing plate. The pressing plate is used to press the flexible battery sheet.

5. The flexible battery sheet waste edge removal device according to claim 4, characterized in that: The first pushing and breaking mechanism includes a fourth driving member and a first pushing and breaking knife. The fourth driving member is installed on the supporting frame and connected to the first pushing and breaking knife. The first pushing and breaking knife is arranged side by side with the pressing plate. The first pushing and breaking knife is used to push and break the waste edge.

6. The flexible battery sheet waste edge removal device according to claim 3, characterized in that: The waste edge removal device also includes a positioning mechanism, which includes a fifth driving member and an adjusting plate. The fifth driving member is installed on the supporting frame and connected to the adjusting plate. The fifth driving member is used to drive the adjusting plate to push the flexible battery sheet after the lifting mechanism completes lifting the flexible battery sheet, so as to ensure that the middle part of the flexible battery sheet is aligned with the middle part of the conveying device.

7. The flexible battery sheet waste edge removal device according to claim 6, characterized in that: The number of the translation mechanism, the pressing mechanism, the first pushing and bending mechanism and the positioning mechanism are all two, the two translation mechanisms are relatively arranged on both sides of the conveying device, each of the pressing mechanism, each of the first pushing and bending mechanism and each of the positioning mechanism are installed on the supporting frame of one of the translation mechanisms, the two pressing mechanisms are respectively used to press the two sides of the flexible battery sheet on the lifting mechanism, the two first pushing and bending mechanisms are respectively used to push down the two waste edges located on both sides of the flexible battery sheet, and the two positioning mechanisms are used to approach each other to push the flexible battery sheet to the middle of the two positioning mechanisms.

8. The flexible battery sheet waste edge removal device according to claim 7, characterized in that: The waste edge removal device also includes a connecting plate, which is connected between the two pressing mechanisms and is used to press the flexible battery sheet.

9. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The second pushing and breaking mechanism includes a positioning seat, a sixth driving member and a second pushing and breaking knife. The positioning seat is connected to the frame. The sixth driving member is installed on the positioning seat and connected to the second pushing and breaking knife. The second pushing and breaking knife is used to push and break the waste edge.

10. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The number of the second pushing and bending mechanisms is two, and the two second pushing and bending mechanisms are arranged oppositely on two sides of the conveying device.

11. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The conveying device includes a base, a carrying plate and two belt transmission mechanisms. The base is installed on the frame and connected to the carrying plate. The two belt transmission mechanisms are both installed on the carrying plate and are relatively arranged at both ends of the carrying plate in the width direction. The belt transmission mechanisms are used to convey the flexible battery sheet along the length direction of the carrying plate.

12. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The flexible battery sheet is also provided with a plurality of crack marks, which are arranged on the inner side of the waste edge crack and are arranged parallel to and spaced from the waste edge crack. The pressing mechanism and the lifting mechanism are used together to clamp one or more crack marks close to the waste edge crack.

13. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The flexible battery sheet waste edge removal equipment also includes a rotating device, there are two waste edge removal devices, the two waste edge removal devices are arranged at intervals along the conveying direction of the conveying device, the rotating device is arranged between the two waste edge removal devices, the first waste edge removal device is used to remove the waste edge in the length direction of the flexible battery sheet, the rotating device is used to drive the flexible battery sheet to rotate 90 degrees, and the second waste edge removal device is used to remove the waste edge in the width direction of the flexible battery sheet.

14. The flexible battery sheet waste edge removal device according to claim 13, characterized in that: The rotating device includes a support seat, a seventh driving member, a lifting plate, an eighth driving member and a rotating frame, the support seat is connected to the frame, the seventh driving member is installed on the support seat and connected to the lifting plate, the eighth driving member is installed on the lifting plate and connected to the rotating frame, the conveying device is provided with a clearance opening, the position of the clearance opening corresponds to the position of the rotating frame, the seventh driving member is used to drive the rotating frame to pass through the clearance opening to lift the flexible battery sheet, and the eighth driving member is used to drive the flexible battery sheet to rotate through the rotating frame.

15. The flexible battery sheet waste edge removal device according to claim 14, characterized in that: The rotating device also includes a vacuum pump and a suction cup. The suction cup is installed on the rotating frame and connected to the vacuum pump. The vacuum pump is used to suck air to adsorb the flexible battery sheet onto the suction cup.

16. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The flexible battery sheet waste edge removal equipment also includes a sensor and a material stop switch. The material stop switch is installed on the side of the conveying device. The sensor is electrically connected to the material stop switch and the conveying device at the same time. The sensor is used to control the conveying device to pause when it detects that the flexible battery sheet moves to the preset position, and control the material stop switch to stop the flexible battery sheet.

17. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: The flexible battery sheet waste edge removal device also includes a collection box. The frame is provided with a waste opening. The collection box is arranged below the waste opening. The waste opening is used for the waste edges to pass through.

18. The flexible battery sheet waste edge removal device according to claim 1, characterized in that: An auxiliary crack is formed on a side of the flexible battery sheet away from the scrap edge crack, and the auxiliary crack is aligned with the scrap edge crack.

19. A method for removing waste edge of a flexible battery sheet, characterized in that: Applied to the flexible battery sheet waste edge removal device according to any one of claims 1 to 18, the removal method of the flexible battery sheet waste edge removal device comprises: Scribing a straight line on the front edge of the flexible battery sheet to form the waste edge crack; Using the conveying device to convey the flexible battery sheet to the preset position; The flexible battery sheet is lifted by the lifting mechanism, so that the flexible battery sheet is separated from the conveying device, and the waste edge crack is located outside the lifting mechanism; The flexible battery sheet is pressed onto the lifting mechanism by using the pressing mechanism, and the waste edge crack is located outside the pressing mechanism; Using the first pushing and breaking mechanism to push and break the scrap edge along the first direction, so that the scrap edge is broken along the scrap edge crack portion; The scrap edge is pushed and broken along the second direction by using the second pushing and breaking mechanism so that the scrap edge is completely broken along the scrap edge crack, wherein the first direction is opposite to the second direction.

20. The method for removing waste edges of a flexible battery sheet according to claim 19, characterized in that: After the step of performing a straight line scribing on the front edge of the flexible battery sheet to form the scrap edge crack, the removal method of the flexible battery sheet scrap edge removal device further comprises: A straight line is drawn on the back edge of the flexible battery sheet to form an auxiliary crack, wherein the auxiliary crack is aligned with the waste edge crack.

21. A battery production line, characterized in that: It comprises the flexible battery sheet waste edge removal device as described in any one of claims 1 to 18.

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