Battery lamination equipment

Abstract

The invention provides battery lamination equipment which comprises a lamination mechanism and two conveying belts, the conveying belts extend in the first direction, the two sides, in the second direction, of the lamination mechanism are provided with positioning deviation rectifying mechanisms, the number of the conveying belts is two, and the lamination mechanism and the positioning deviation rectifying mechanisms are located between the two conveying belts. The second direction is perpendicular to the first direction, and the first direction and the second direction are both parallel to the horizontal plane; the battery lamination equipment further comprises a first bearing beam extending in the second direction, and the first bearing beam is movably provided with a first transferring mechanism used for transferring the pole pieces from the conveying belt to the positioning and deviation rectifying mechanism, and a second transferring mechanism used for transferring the pole pieces from the positioning and deviation rectifying mechanism to the lamination mechanism and the second transferring mechanism. And a diaphragm unwinding mechanism is arranged on the first bearing beam. The device is reasonable in layout, compact in structure and beneficial to improving the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and particularly to a battery laminating device. Background Art

[0002] Battery electrode sheets include positive electrode sheets and negative electrode sheets. The positive electrode sheets and negative electrode sheets are paired with diaphragms through a laminating process to form battery cells. Before laminating the battery electrode sheets, it is necessary to position and correct the deviation of the positive electrode sheets and negative electrode sheets respectively. In the conventional process, the pre-laminating pretreatment stations such as the deviation correction of the positive electrode sheets and negative electrode sheets are scattered, occupying a large space, which is not conducive to the layout of the production line. The transfer stroke of the battery electrode sheets is large, affecting the production efficiency. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a battery laminating device with a reasonable layout and a compact structure, which is conducive to improving the production efficiency.

[0004] The embodiments of the present invention are realized through the following technical solutions:

[0005] A battery laminating device includes a laminating mechanism and a conveyor belt. The conveyor belt extends along a first direction. Positioning and deviation correction mechanisms are arranged on both sides of the laminating mechanism in a second direction. There are two conveyor belts. The laminating mechanism and the positioning and deviation correction mechanisms are located between the two conveyor belts. The second direction is perpendicular to the first direction, and both the first direction and the second direction are parallel to the horizontal plane. The battery laminating device further includes a first load-bearing beam extending along the second direction. A first transfer mechanism for transferring the electrode sheets from the conveyor belt to the positioning and deviation correction mechanism, and a second transfer mechanism for transferring the electrode sheets from the positioning and deviation correction mechanism to the laminating mechanism are movably arranged on the first load-bearing beam. A diaphragm unwinding mechanism is arranged on the first load-bearing beam.

[0006] The technical solutions of the embodiments of the present invention at least have the following advantages and beneficial effects:

[0007] In the present invention, the two sets of transfer mechanisms and positioning and deviation correction mechanisms in the second direction cooperate with each other to realize the transfer, positioning and deviation correction, and lamination of the battery electrode sheets, that is, the positive electrode sheets and negative electrode sheets. The structure is compact and the layout is reasonable, effectively reducing the overall volume of the battery laminating device, which is conducive to the layout of the battery production line. The transfer stroke between the deviation correction of the battery electrode sheets and the lamination is short, which is conducive to ensuring the production efficiency. Brief Description of the Drawings

[0008] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0009] Figure 1 Schematic perspective structure diagram of the battery stacking device provided by the embodiment of the present invention;

[0010] Figure 2 Schematic top view structure diagram of the battery stacking device provided by the embodiment of the present invention;

[0011] Figure 3 Schematic assembly structure diagram of the first transfer mechanism, the second transfer mechanism, the positioning and deviation correction mechanism, and the stacking mechanism provided by the embodiment of the present invention;

[0012] Figure 4 Schematic perspective structure diagram of the first transfer mechanism provided by the embodiment of the present invention;

[0013] Figure 5 Schematic perspective structure diagram of the positioning and deviation correction mechanism provided by the embodiment of the present invention;

[0014] Figure 6 Assembly structure diagram of the first NG mechanism and the positioning and deviation correction mechanism provided by the present invention;

[0015] Figure 7 Schematic perspective structure diagram of the stacking mechanism provided by the embodiment of the present invention;

[0016] Figure 8 Schematic assembly structure diagram of the stacking platen and the pressing knife support plate provided by the embodiment of the present invention;

[0017] Figure 9 For Figure 8 The first exploded view of the structure shown;

[0018] Figure 10 For Figure 8 The second exploded view of the structure shown;

[0019] Figure 11 Schematic perspective structure diagram of the diaphragm moving frame assembling the diaphragm provided by the embodiment of the present invention;

[0020] Figure 12 Schematic front view structure diagram of the diaphragm moving frame assembling the diaphragm provided by the embodiment of the present invention;

[0021] Figure 13 Schematic assembly structure diagram of the tail roll mechanism and the glue pasting mechanism provided by the embodiment of the present invention;

[0022] Figure 14 Schematic diagram of the assembly structure of the second bearing beam, film cutting assembly and first transfer assembly provided by the embodiment of the present invention;

[0023] Figure 15 First three-dimensional structure diagram of the film cutting assembly provided by the embodiment of the present invention;

[0024] Figure 16 Second three-dimensional structure diagram of the film cutting assembly provided by the embodiment of the present invention;

[0025] Figure 17 is Figure 16 Three-dimensional structure diagram of the shown film cutting assembly after removing the tensioning roller;

[0026] Figure 18 Three-dimensional structure diagram of the first transfer assembly provided by the embodiment of the present invention;

[0027] Figure 19 Three-dimensional structure diagram of the tail roll assembly provided by the embodiment of the present invention;

[0028] Figure 20 Three-dimensional structure diagram of the glue pasting mechanism provided by the embodiment of the present invention;

[0029] Figure 21 Three-dimensional structure diagram of the glue pasting table provided by the embodiment of the present invention;

[0030] Figure 22 Three-dimensional structure diagram of the second transfer assembly provided by the embodiment of the present invention.

[0031] Icons: 11, positive electrode plate; 12, negative electrode plate; 2a1, conveyor belt; 20, second transfer assembly; 201, second gripper; 21, laminating mechanism; 211, laminating table board; 212, laminating table support seat; 2121, second fixed bottom plate; 2122, long vertical plate; 21221, first driving lead screw; 2123, short vertical plate; 213, cutter pressing support plate; 2131, cutter pressing plate; 2132, synchronous belt; 2133, tool holder; 214, support box; 215, side frame; 216, second driving lead screw; 22, positioning and deviation correction mechanism; 221, second vision assembly; 222, deviation correction table; 223, adjustment table; 23, electrode plate buffer assembly; 24, first load-bearing beam; 241, diaphragm unwinding mechanism; 242, diaphragm moving frame; 2421, third fixed bottom plate; 2422, extension plate; 2423, first roller frame; 2424, third driving lead screw; 2425, upper roller group; 2426, lower roller group; 25, first transfer mechanism; 251, first fixed bottom plate; 252, extension suspension; 253, DD motor; 254, first suction cup; 26, second transfer mechanism; 27, first NG mechanism; 271, mounting seat; 272, first NG box; 273, seat plate; 274, mounting plate; 275, adjustment plate; 2751, main suspension plate; 2752, first sub-suspension; 2753, second sub-suspension; 276, negative pressure suction head; 28, glue pasting mechanism; 281, glue pasting assembly; 2811, glue pasting head; 282, glue pasting table; 2821, battery cell fixture; 28211, upper reference plate; 28212, lower reference plate; 28213, first fixed column; 28214, first pressing block; 28215, second pressing block; 28216, upper driving plate; 28217, lower driving plate; 282171, second fixed column; 28218, transfer column; 2822, base; 2823, rotating platform; 2824, driving cylinder; 29, tail winding mechanism; 291, second load-bearing beam; 292, tail winding assembly; 2921, winding cutter; 293, film cutting assembly; 2930, first adapter plate; 2931, first fixed plate; 2932, first fixed seat; 2933, cutting member; 29331, cutter plate; 29332, resistance wire cutter; 2934, upper pressing plate; 2935, lower pressing plate; 2936, second adapter plate; 2937, second roller frame; 2938, tensioning pressure roller; 294, first transfer assembly; 2941, third fixed plate; 2942, second fixed seat; 2943, first gripper; 29431, cutter groove; X, first direction; Y, second direction. Detailed implementation manners

[0032] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0034] Please refer to Figures 1 to 22 , a battery laminating device, including a laminating mechanism 21 and a conveyor belt 2a1. The conveyor belt 2a1 extends along the first direction X. Positioning and deviation correction mechanisms 22 are arranged on both sides of the laminating mechanism 21 in the second direction Y. There are two conveyor belts 2a1. The laminating mechanism 21 and the positioning and deviation correction mechanisms 22 are located between the two conveyor belts 2a1. The second direction Y is perpendicular to the first direction X. Both the first direction X and the second direction Y are parallel to the horizontal plane; the battery laminating device further includes a first load-bearing beam 24 extending along the second direction Y. A first transfer mechanism 25 for transferring the electrode sheet from the conveyor belt 2a1 to the positioning and deviation correction mechanism 22, and a second transfer mechanism 26 for transferring the electrode sheet from the positioning and deviation correction mechanism 22 to the laminating mechanism 21 are movably arranged on the first load-bearing beam 24; a diaphragm unwinding mechanism 241 is arranged on the first load-bearing beam 24. As Figures 1 to 3 shown, the conveyor belt 2a1 on the right side of the second direction Y conveys the positive electrode sheet 11, and the conveyor belt 2a1 on the left side of the second direction Y conveys the negative electrode sheet 12. The first transfer mechanism 25 and the second transfer mechanism 26 on the right side of the second direction Y cooperate to transfer the positive electrode sheet 11 to the laminating mechanism 21 in a specific posture, and the first transfer mechanism 25 and the second transfer mechanism 26 on the left side of the second direction Y cooperate to transfer the negative electrode sheet 12 to the laminating mechanism 21 in a specific posture. In this embodiment, the two sets of transfer mechanisms and the positioning and deviation correction mechanism 22 in the second direction Y cooperate with each other to realize the transfer, positioning and deviation correction, and lamination of the battery electrode sheets, that is, the positive electrode sheet 11 and the negative electrode sheet 12. The structure is compact, the layout is reasonable, the overall volume of the battery laminating device is effectively reduced, which is beneficial to the layout of the battery production line. The transfer stroke between the deviation correction of the battery electrode sheet and the lamination is short, which is beneficial to ensuring the production efficiency.

[0035] In some embodiments, a pole piece buffer assembly 23 is arranged between the positioning and deviation correction mechanism 22 and the conveyor belt 2a1 on the same side of the laminating mechanism 21. Specifically, the first transfer mechanism 25 transfers the pole piece to the pole piece buffer assembly 23 for stockpiling, so as to continuously supply materials to the second transfer mechanism 26, thereby improving the production efficiency.

[0036] In this embodiment, the battery laminating device further includes a square tube frame. The first load-bearing beam 24, the laminating mechanism 21, the positioning and deviation correction mechanism 22, the pole piece buffer mechanism, and the conveyor belt 2a1 are all installed on the square tube frame.

[0037] As shown Figure 3 in FIG. 1, the first transfer mechanism 25 and the second transfer mechanism 26 are movably mounted on the first bearing beam 24 through a linear module.

[0038] Specifically, as shown Figure 4 in FIG. 2, the first transfer mechanism 25 includes a first fixed base plate 251, an extension suspension 252, and a first suction cup 254. The first fixed base plate 251 is mounted on the linear module. The extension suspension 252 is longitudinally movably assembled on the first fixed base plate 251 through a slide rail and slider assembly. The first suction cup 254 is rotatably connected to the extension suspension 252 through a DD motor 253. During use, the extension suspension 252 is driven by a transmission lead screw or a cylinder assembled on the first fixed base plate 251 to move longitudinally, so as to adjust the longitudinal position of the first suction cup 254. In this embodiment, when the positive electrode plate 11 and the negative electrode plate 12 are on the conveyor belt 2a1, their length directions are parallel to the second direction Y, and when the positive electrode plate 11 and the negative electrode plate 12 are on the lamination mechanism 21, their length directions are parallel to the first direction. Here, the positive electrode plate 11 and the negative electrode plate 12 are rotated 90° in the horizontal plane during the transfer process by the first transfer mechanism 25. The first suction cup 254 is used to grasp the positive electrode plate 11 and the negative electrode plate 12 on the conveyor belt 2a1, and after adjusting the angle, transfer them to the corresponding positioning and deviation correction mechanism 22 for spatial position adjustment before lamination.

[0039] In some embodiments, the second transfer mechanism 26 has the same structure as the first transfer mechanism 25. In other embodiments, the second transfer mechanism 26 has one less DD motor 253 than the first transfer mechanism 25, that is, the first suction cup 254 is fixedly assembled to the extension suspension 252.

[0040] As shown Figure 5 in FIG. 3, the positioning and deviation correction mechanism 22 includes a deviation correction table 222 and a second vision component 221 arranged above the deviation correction table 222. The deviation correction table 222 is adjustably assembled on the square tube frame through an adjustment table 223. Optionally, the second vision component 221 is mounted on the first bearing beam 24. The adjustment table 223 is a vision alignment platform. During use, the first transfer mechanism 25 transfers the positive electrode plate 11 and the negative electrode plate 12 to the corresponding deviation correction table 222, and cooperates with the second vision component 221 and the adjustment table 223 to adjust the spatial positions of the positive electrode plate 11 and the negative electrode plate 12 to ensure the position accuracy during subsequent lamination.

[0041] As shown Figure 3 and Figure 6As shown in the figure, the battery stacking device further includes a first NG mechanism 27 disposed near the positioning and deviation correction mechanism 22. The first NG mechanism 27 includes a first NG box 272 disposed on one side of the positioning and deviation correction mechanism 22 along the first direction X, and a mounting base 271 disposed on one side of the positioning and deviation correction mechanism 22 along the second direction Y. An NG gripper is movably assembled on the mounting base 271. The NG gripper is used to transfer the NG pole piece at the positioning and deviation correction mechanism 22 to the first NG box 272. It should be noted that on the deviation correction table 222, while the second vision component 221 performs positioning and photographing, it can also detect the pole pieces, that is, the positive pole piece 11 and the negative pole piece 12. During this process, the NG pole pieces are transferred to the first NG box 272 for recycling by the NG gripper to further ensure the quality of the produced battery.

[0042] Furthermore, as Figure 6 shown, the NG gripper includes a seat plate 273, a mounting plate 274, and an adjustment plate 275. Among them, the seat plate 273 is movably disposed on the mounting base 271 along the first direction X and its reverse direction. The mounting plate 274 is movably disposed on the seat plate 273 longitudinally. The adjustment plate 275 is disposed on the mounting plate 274. A plurality of negative pressure suction heads 276 are adjustably assembled on the mounting plate 274. Specifically, the mounting base 271 is disposed on the square tube frame. The seat plate 273 is movably disposed on the mounting base 271 through a slide rail and slider assembly, and is driven by a transmission lead screw or a cylinder disposed on the mounting base 271 to approach or move away from the deviation correction table 222. The mounting plate 274 is movably assembled on the seat plate 273 longitudinally through a slide rail and slider assembly, and is driven by a transmission lead screw or a cylinder disposed on the seat plate 273. With such a setting, the negative pressure suction heads 276 on the adjustment plate 275 can adjust the longitudinal height and reciprocate between the deviation correction table 222 and the first NG box 272 to continuously transfer the NG pole pieces into the first NG box 272.

[0043] More specifically, the adjustment plate 275 includes a main suspension plate 2751, a first sub-suspension 2752, and a second sub-suspension 2753. Among them, the main suspension plate 2751 is fixedly assembled on the mounting plate 274. The first sub-suspension 2752 is fixedly installed on the main suspension plate 2751. Two second sub-suspensions 2753 are respectively installed at two ends of the first sub-suspension 2752 in the length direction. A first adjustment groove and a second adjustment groove are provided on the first sub-suspension 2752 along its length direction. A third adjustment groove is provided on the second sub-suspension 2753 along its length direction. The length direction of the first sub-suspension 2752 is perpendicular to the length direction of the second sub-suspension 2753. The second sub-suspension 2753 is adjustably assembled in the first adjustment groove. The negative pressure suction heads 276 are adjustably assembled in both the second adjustment groove and the third adjustment groove. With such a setting, it is convenient to adjust the positions of the negative pressure suction heads 276 according to the specifications of the pole pieces to adapt to the transfer requirements of more specifications of pole pieces.

[0044] As Figures 7 to 10 shown, the lamination mechanism 21 includes a lamination platen 211, a lamination support base 212, and a press knife support plate 213. The lamination platen 211 and the press knife support plate 213 are both longitudinally adjustably assembled to the lamination support base 212. There are two press knife support plates 213. The lamination platen 211 and the lamination support base 212 are located between the two press knife support plates 213. Two press knife seats are movably assembled on the press knife support plate 213, and the two press knife seats can approach or move away from each other. A press knife plate 2131 is longitudinally adjustably assembled on the press knife seat. In this embodiment, the lamination platen 211 has negative pressure holes and can adsorb the separator during the lamination process. The press knife plate 2131 is used to press the battery cell structure composed of the positive electrode plate 11, the negative electrode plate 12, and the separator during the lamination process, that is, the original battery cell.

[0045] Furthermore, as Figure 9 and Figure 10 shown, the lamination support base 212 includes a second fixed bottom plate 2121, a long longitudinal plate 2122, and a short longitudinal plate 2123. Among them, the long longitudinal plate 2122 and the short longitudinal plate 2123 are both fixedly installed on the second fixed bottom plate 2121. The two short longitudinal plates 2123 are respectively arranged at the two ends of the long longitudinal plate 2122 in the length direction. The lamination platen 211 is assembled to the long longitudinal plate 2122, and the press knife support plate 213 is assembled to the short longitudinal plate 2123. The long longitudinal plate 2122 and the short longitudinal plate 2123 installed on the second fixed bottom plate 2121 form an I-shaped structure. The press knife support plate 213 is longitudinally slidably installed on the short longitudinal plate 2123 through a slide rail-slider assembly, and the lamination platen 211 is longitudinally slidably installed on the long longitudinal plate 2122 through a slide rail-slider assembly. Specifically, a cylinder or a transmission lead screw is assembled on the long longitudinal plate 2122 to drive the press knife support plate 213 and the lamination platen 211 to move longitudinally, so as to continuously adjust the heights of the press knife plate 2131 and the lamination platen 211 during the lamination process. In this embodiment, the press knife support plate 213 and the lamination platen 211 are driven to move longitudinally by the first transmission lead screw 21221 as Figure 9 and Figure 10 shown. In this embodiment, the lamination platen 211 is L-shaped. As Figure 10 shown, one part is slidably connected to the long longitudinal plate 2122, and the other part is located on the top of the long longitudinal plate 2122 and is used to support the separator and the battery electrode plates (the positive electrode plate 11 and the negative electrode plate 12).

[0046] Further, a tool rest 2133 is slidably arranged on the knife pressing support plate 213 along its length direction through a slide rail and slider assembly, and the knife pressing plate 2131 is adjustably arranged on the tool rest 2133 through a cylinder. In this embodiment, optionally, the tool rest 2133 is driven by a synchronous belt 2132 or a cylinder arranged on the knife pressing support plate 213 to adjust the position of the knife pressing plate 2131 in the length direction of the pole piece, so as to adapt to the processing of pole pieces of different specifications. The driving of the tool rest 2133 by the synchronous belt 2132 is a conventional technology and will not be elaborated here. It should be noted that, as Figure 9 shown, on the same knife pressing support plate 213, for the two tool rests 2133 in its length direction, one is engaged with the upper side of the synchronous belt 2132, and the other is engaged with the lower side of the synchronous belt 2132, so that the two tool rests 2133 can move closer or farther away synchronously.

[0047] As Figure 7 shown, in this embodiment, the stacking mechanism 21 further includes two side frames 215 arranged on the square tube frame. A support box 214 is arranged at the bottom of the stacking table support seat 212. The support box 214 is located between the two side frames 215 and is slidably connected to the side frames 215 along the longitudinal direction through a slide rail and slider assembly. Further, a second transmission lead screw 216 is arranged on one of the side frames 215. The support box 214 is in threaded transmission connection with the second transmission lead screw 216 and is driven by the second transmission lead screw 216 to move longitudinally. With such an arrangement, the height of the stacking mechanism 21 can be integrally increased or decreased longitudinally.

[0048] In this embodiment, the stacking mechanism 21 further includes a diaphragm moving frame 242 arranged on the first bearing beam 24. The diaphragm moving frame 242 is located between the two second transfer mechanisms 26 and can reciprocate between the two second transfer mechanisms 26; the diaphragm extends from the diaphragm unwinding mechanism 241 to the diaphragm moving frame 242. Here, the diaphragm moving frame 242 is driven to move by a linear module arranged on the first bearing beam 24.

[0049] As Figure 11 and Figure 12As shown in the figure, the diaphragm moving frame 242 includes a third fixed bottom plate 2421, an extension plate 2422, and a first roller frame 2423. There are two extension plates 2422 arranged on the third fixed bottom plate 2421. The first roller frame 2423 is arranged between the two extension plates 2422 and is slidably connected to the extension plates 2422 through a slide rail and slider assembly. The first roller frame 2423 can move in the width direction of the diaphragm. Above the first roller frame 2423, there is an upper roller group 2425, and below the first roller frame 2423, there is a lower roller group 2426. A third transmission lead screw 2424 is configured on the third fixed bottom plate 2421. The first roller frame 2423 is in threaded transmission connection with the third transmission lead screw 2424 and is driven by it. In this embodiment, both the upper roller group 2425 and the lower roller group 2426 are two idler rollers. The idler rollers are rotatably installed on the first roller frame 2423. The diaphragm extends from the upper roller group 2425 to the lower roller group 2426 to the lamination platen 211 and is fixed by the pressing knife plate 2131 in cooperation with the lamination platen 211.

[0050] During use, the third transmission lead screw 2424 rotates to drive the first roller frame 2423 to reciprocate in the width direction of the diaphragm to correct the deviation of the diaphragm.

[0051] Specifically, during operation, after the free end of the diaphragm is fixed on the lamination platen 211, the two second transfer mechanisms 26 respectively transfer the positive electrode plate 11 and the negative electrode plate 12 and cooperate with the diaphragm moving frame 242 to complete the battery electrode plate lamination work. The battery electrode plate lamination is an existing process and will not be elaborated here.

[0052] As Figure 1 、 Figure 3 and Figure 13 shown in the figure, the battery lamination device further includes a tail winding mechanism 29. The tail winding mechanism 29 includes a tail winding assembly 292, a film cutting assembly 293, and a first transfer assembly 294. The film cutting assembly 293 and the first transfer assembly 294 can approach or move away from the lamination mechanism 21. The tail winding assembly 292 is on the movement path of the film cutting assembly 293 and the first transfer assembly 294 approaching or moving away from the lamination mechanism 21. During use, when the original battery cell is formed by lamination at the lamination mechanism 21, both the film cutting assembly 293 and the first transfer assembly 294 move towards the lamination mechanism 21. The first transfer assembly 294 grabs the original battery cell and moves towards the tail winding assembly 292 to a tail winding diaphragm of an appropriate length. At this time, the film cutting assembly 293 fixes the diaphragm on one side of the original battery cell and cuts it off. The diaphragm on the side of the lamination mechanism 21 continues the next round of lamination, and the diaphragm on the side of the original battery cell participates in the tail winding of the diaphragm of the original battery cell. Specifically, the first transfer assembly 294 transfers the original battery cell to the tail winding assembly 292. The film cutting assembly 293 fixes the free end of the tail winding diaphragm and gradually approaches the tail winding assembly 292 as the tail winding assembly 292 performs the tail winding action to keep the tail winding diaphragm under a certain tension.

[0053] Specifically, as Figure 13 and Figure 14 shown, the tail winding mechanism 29 further includes a second bearing beam 291. The second bearing beam 291 extends along the second direction Y and is fixedly installed on the square tube frame. The first transfer assembly 294 and the film cutting assembly 293 are both assembled to the second bearing beam 291 through linear modules and are driven by it to move along the second direction Y.

[0054] As Figures 15 to 17 shown, the film cutting assembly 293 includes a first fixing plate 2931. A first fixing seat 2932 is adjustably assembled along the longitudinal direction on the first fixing plate 2931. A cutting member 2933 is adjustably assembled along the longitudinal direction on a side surface of the first fixing seat 2932 facing the diaphragm unwinding mechanism 241. An upper pressing plate 2934 and a lower pressing plate 2935 are adjustably assembled along the longitudinal direction on a side surface of the first fixing plate 2931 facing away from the diaphragm unwinding mechanism 241. The upper pressing plate 2934 and the lower pressing plate 2935 can approach or move away from each other. The diaphragm passes through the gap between the upper pressing plate 2934 and the lower pressing plate 2935. In this embodiment, the cutting member 2933 includes a cutter plate 29331. The cutter plate 29331 is movably assembled along the longitudinal direction on the first fixing seat 2932 through a slide rail and slider assembly, and is driven to move along the longitudinal direction by a cylinder arranged on the first fixing seat 2932. A resistance wire cutter 29332 is assembled on the cutter plate 29331. As Figure 17 shown, first transfer brackets 2930 are installed on both the upper pressing plate 2934 and the lower pressing plate 2935. The first transfer brackets 2930 are movably assembled along the longitudinal direction with the first fixing seat 2932 through a slide rail and slider assembly, and are respectively driven by cylinders arranged on the first fixing seat 2932, so that the upper pressing plate 2934 and the lower pressing plate 2935 can approach or move away from each other relatively. Negative pressure holes are arranged on the lower pressing plate 2935 for adsorbing the diaphragm. The upper pressing plate 2934 cooperates with the lower pressing plate 2935 to fix the diaphragm, so as to cooperate with the resistance wire cutter 29332 to cut the diaphragm. It should be noted that the first transfer assembly 294 passes through the gap between the upper pressing plate 2934 and the lower pressing plate 2935 to reach the stacking mechanism 21 to grab the original battery cells, and transfers the original battery cells from the side of the film cutting assembly 293 close to the stacking mechanism 21 to the side of the film cutting assembly 293 far from the stacking mechanism 21 through the gap between the upper pressing plate 2934 and the lower pressing plate 2935.

[0055] In this embodiment, the first fixing seat 2932 is movably assembled along the longitudinal direction on the first fixing plate 2931 through a linear module. Further, as Figure 16As shown, the film cutting mechanism further includes a tensioning roller 2938, and the axial direction of the tensioning roller 2938 is parallel to the width direction of the diaphragm. Here, the tensioning roller 2938 is used to adjust the tension of the tail-rolled diaphragm during the tail-rolling process. Specifically, a second adapter plate 2936 is fixedly installed on the first adapter plate 2930 of the upper pressure plate 2934. A second roller bracket 2937 is longitudinally adjustably arranged on the second adapter plate 2936, and the tensioning roller 2938 is rotatably installed on the second roller bracket 2937. In this embodiment, a guide shaft is arranged on the second roller bracket 2937. The guide shaft penetrates through the second adapter plate 2936 and is slidably connected to it. A cylinder for driving the second roller bracket 2937 to move longitudinally is assembled on the second adapter plate 2936.

[0056] As Figure 19 shown, the tail-rolling assembly 292 is a prior art and will not be elaborated here. It should be noted that during the tail-rolling process of the original battery cell, the winding knife 2921 clamps the original battery cell and is wrapped by the tail-rolled diaphragm.

[0057] As Figure 18 shown, the first transfer assembly 294 includes a third fixing plate 2941, a second fixing seat 2942, and a first gripper 2943. Among them, the third fixing plate 2941 is movably assembled on the second bearing beam 291 along the second direction Y through a linear module. The second fixing seat 2942 is movably assembled on the third fixing plate 2941 longitudinally through a linear module. Two first grippers 2943 are longitudinally adjustably assembled on the second fixing seat 2942 through a slide rail and slider assembly and are driven by a cylinder so that the two can approach or separate. It should be noted that a knife groove 29431 for avoiding the winding knife 2921 is arranged on the first gripper 2943. The two first grippers 2943 are mirror-symmetrically arranged for grasping the original battery cell after tail-rolling. The winding knife 2921 is located in the knife groove 29431 so that the winding knife 2921 can be smoothly withdrawn from the original battery cell when the first gripper 2943 grasps the original battery cell.

[0058] As Figure 2 、 Figure 13 and Figure 20As shown in the figure, in this embodiment, the battery laminating device further includes a glue pasting mechanism 28. The glue pasting mechanism 28 includes two glue pasting components 281 arranged in mirror image. A glue pasting table 282 is arranged between the two glue pasting components 281. The glue pasting table 282 includes a base 2822 movably arranged on the square tube frame through a slide rail and slider assembly to adjust the spatial position between the glue pasting table 282 and the glue pasting component 281 to facilitate the subsequent feeding of the original battery cells. On the base 2822, a battery cell clamp 2821 is rotatably arranged in the horizontal plane for clamping the original battery cells. The battery cell clamp 2821 has an avoidance notch for avoiding the first gripper 2943, so as to facilitate the first transfer assembly 294 to transfer the original battery cells from the tail coil assembly 292 to the glue pasting table 282. In this embodiment, the two glue pasting components 281 can approach or move away from each other, and then approach or move away from the glue pasting table 282 to realize gluing the original battery cells to fix the separator. The glue pasting table 282 rotates to facilitate gluing the original battery cells in the length direction and width direction by the same glue pasting component 281, improving the efficiency and reducing the cost. In this embodiment, the glue pasting component 281 is a prior art and will not be elaborated here. It should be noted that the glue pasting component 281 has a glue pasting head 2811, and the width of the avoidance notch is greater than the width of the glue pasting head 2811. In this way, the glue pasting head 2811 can be extended into the avoidance notch during the glue pasting process, enabling the original battery cells to have a greater glue pasting length, ensuring the reliability of gluing, and at the same time not affecting the clamping of the original battery cells by the battery cell clamp 2821.

[0059] As Figure 21As shown in the figure, the cell fixture 2821 includes an upper reference plate 28211 and a lower reference plate 28212 that are spaced apart vertically from top to bottom, and an upper drive plate 28216 and a lower drive plate 28217 that are spaced apart vertically from top to bottom. The upper reference plate 28211 and the lower reference plate 28212 are fixedly connected by a first fixing column 28213, and the upper drive plate 28216 and the lower drive plate 28217 are fixedly connected by a second fixing column 282171. The upper drive plate 28216 is located between the upper reference plate 28211 and the lower reference plate 28212. The second fixing column 282171 passes through the lower reference plate 28212 and is slidably connected thereto. A transfer column 28218 extending longitudinally is assembled on the lower reference plate 28212. The base 2822 is located below the lower drive plate 28217, and the two are rotatably connected by a rotating platform 2823 assembled on the base 2822. A driving cylinder 2824 is assembled on the base 2822. The transfer column 28218 passes through the lower drive plate 28217 and is slidably connected thereto. At the same time, the transfer column 28218 passes through the rotating platform 2823 and is connected to the driving cylinder 2824. It should be noted that the rotating platform 2823 is a hollow rotating platform 2823. A plurality of first pressing blocks 28214 are provided on the upper reference plate 28211, and a plurality of second pressing blocks 28215 are provided on the upper drive plate 28216. The first pressing blocks 28214 and the second pressing blocks 28215 are located between the upper drive plate 28216 and the upper reference plate 28211. The original cell is located between the first pressing blocks 28214 and the second pressing blocks 28215. The aforementioned avoidance notches are formed between adjacent two first pressing blocks 28214 and between adjacent two second pressing blocks 28215. During use, the lower reference plate 28212, the upper reference plate 28211, and the first pressing blocks 28214 move synchronously. The driving cylinder 2824 drives the lower reference plate 28212, that is, the first pressing blocks 28214, to approach or move away from the second pressing blocks 28215 longitudinally to clamp or release the original cell.

[0060] As Figure 13 and Figure 22 shown in the figure, the battery laminating device further includes a second transfer assembly 20, which has a second gripper 201 that is movably arranged longitudinally and is used to transfer the original cell after the gluing is completed. This is prior art and will not be elaborated here.

[0061] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A battery lamination device, characterized in that: It comprises a lamination mechanism and a conveyor belt, wherein the conveyor belt is extended along a first direction, and the lamination mechanism is provided with positioning and correcting mechanisms on both sides of a second direction, and there are two conveyor belts, and the lamination mechanism and the positioning and correcting mechanism are located between the two conveyor belts, and the second direction is perpendicular to the first direction, and the first direction and the second direction are both parallel to a horizontal plane; The battery lamination equipment further comprises a first bearing beam extending along the second direction, and a first transfer mechanism for transferring the pole piece from the conveyor belt to the positioning and correcting mechanism, and a second transfer mechanism for transferring the pole piece from the positioning and correcting mechanism to the lamination mechanism, is movably provided on the first bearing beam; A diaphragm unwinding mechanism is provided on the first load-bearing beam.

2. The battery stacking equipment according to claim 1, characterized in that: The battery stacking equipment also includes a first NG mechanism arranged near the positioning and correcting mechanism, the first NG mechanism includes a first NG box arranged on one side of the positioning and correcting mechanism along the first direction, and a mounting seat arranged on one side of the positioning and correcting mechanism along the second direction, the mounting seat is movably equipped with an NG gripper, and the NG gripper is used to transfer the NG pole piece at the positioning and correcting mechanism to the first NG box.

3. The battery stacking equipment according to claim 2, characterized in that: The NG gripper includes a seat plate, a mounting plate and an adjustment plate, wherein the seat plate is movably arranged on the mounting seat along the first direction and the opposite direction, the mounting plate is movably arranged on the seat plate along the longitudinal direction, the adjustment plate is arranged on the mounting plate, and a plurality of negative pressure suction heads are adjustably mounted on the mounting plate.

4. The battery stacking equipment according to claim 1, characterized in that: The lamination mechanism comprises a lamination table, a lamination table support seat and a knife pressing support plate, wherein the lamination table and the knife pressing support plate are both adjustably mounted on the lamination table support seat in the longitudinal direction, and there are two knife pressing support plates, and the lamination table and the lamination table support seat are located between the two knife pressing support plates; The knife pressing support plate is movably provided with two knife pressing seats, which can be moved closer to or farther away from each other. The knife pressing seats are provided with knife pressing plates which can be adjusted in the longitudinal direction.

5. The battery stacking equipment according to claim 4, characterized in that: The stacking table support seat includes a base plate, a long longitudinal plate and a short longitudinal plate, wherein the long longitudinal plate and the short longitudinal plate are both fixedly installed on the base plate, and the two short longitudinal plates are arranged one by one at the two ends of the long longitudinal plate in the length direction, the stacking table is assembled on the long longitudinal plate, and the pressing knife support plate is assembled on the short longitudinal plate.

6. The battery stacking equipment according to claim 1, characterized in that: The battery stacking equipment also includes a tail rolling mechanism, a film cutting mechanism and a third transport mechanism. The film cutting mechanism and the third transport mechanism can approach or move away from the stacking mechanism, and the tail rolling mechanism is on the movement path of the film cutting mechanism and the third transport mechanism approaching or moving away from the stacking mechanism.

7. The battery lamination equipment according to claim 6, characterized in that: The film cutting mechanism includes a first fixed plate, on which a first fixed seat is adjustably mounted along the longitudinal direction, and a cutting piece is adjustably mounted on a side of the first fixed seat facing the diaphragm unwinding mechanism along the longitudinal direction, and an upper pressure plate and a lower pressure plate are adjustably mounted on a side of the first fixed plate facing away from the diaphragm unwinding mechanism along the longitudinal direction, and the upper pressure plate and the lower pressure plate can approach or move away from each other, and the diaphragm passes through the gap between the upper pressure plate and the lower pressure plate.

8. The battery stacking equipment according to claim 7, characterized in that: The film cutting mechanism further comprises a tensioning roller, the axial direction of which is parallel to the width direction of the diaphragm.

9. The battery stacking equipment according to claim 1, characterized in that: The battery stacking equipment also includes a gluing mechanism, which includes two gluing components arranged in a mirror image, a gluing platform is arranged between the two gluing components, and the gluing platform includes a base, a battery cell clamp is rotatably arranged on the base in a horizontal plane, and the battery cell clamp has an avoidance gap; the gluing component has a gluing head, and the width of the avoidance gap is greater than the width of the gluing head.

10. The battery lamination equipment according to claim 9, characterized in that: The cell fixture comprises an upper reference plate and a lower reference plate spaced apart from each other in the longitudinal direction from top to bottom, and an upper drive plate and a lower drive plate spaced apart from each other in the longitudinal direction from top to bottom, the upper reference plate and the lower reference plate are fixedly connected via a first fixing column, the upper drive plate and the lower drive plate are fixedly connected via a second fixing column, the upper drive plate is located between the upper reference plate and the lower reference plate, and the second fixing column penetrates the lower reference plate and is slidably connected thereto; The lower reference plate is equipped with a transmission column extending in the longitudinal direction, the base is located below the lower driving plate, and the two are rotatably connected via a rotating platform mounted on the base, a driving cylinder is mounted on the base, the transmission column penetrates the lower driving plate and is slidably connected thereto, and the transmission column is connected to the driving cylinder through the rotating platform; A plurality of first clamping blocks are arranged on the upper reference plate, and a plurality of second clamping blocks are arranged on the upper driving plate. The first clamping blocks and the second clamping blocks are located between the upper driving plate and the upper reference plate, and the avoidance gap is formed between two adjacent first clamping blocks and between two adjacent second clamping blocks.

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