Battery pole piece cutting and stacking equipment

Abstract

The utility model provides battery pole piece cutting and stacking equipment which comprises a slicing part and a stacking part which are sequentially arranged along a first direction, and the slicing part and the stacking part are connected in series through a conveying part extending along the first direction; the slicing part comprises two pole piece modules which are arranged in a mirroring manner and is used for cutting a pole piece material belt to form a corresponding positive pole piece and a corresponding negative pole piece, and the positive pole piece and the negative pole piece are transferred to the lamination part through the conveying part to be laminated to form an original battery cell. According to the utility model, automatic cutting and detection of the battery pole piece can be realized, the transfer of the battery pole piece between the slicing station and the lamination station is realized through the conveying part, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery electrode cutting and stacking device. Background Technology

[0002] After the battery electrode stock is unwound, it is cut according to specifications to form the required battery electrodes, including positive and negative electrodes. The positive and negative electrodes are then combined with a separator and stacked to form a battery cell. After the cell is glued and shaped, it is packaged to form a single battery cell. In the existing technology, battery electrode slicing and stacking are separate processes, and the transfer of battery electrodes between the slicing and stacking processes usually requires manual intervention, which is inefficient. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a battery electrode cutting and stacking device that is highly efficient and has good compatibility.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A battery electrode cutting and stacking device includes a slicing section and a stacking section arranged sequentially along a first direction. The slicing section and the stacking section are connected in series via a conveying section extending along the first direction. The slicing section includes two electrode modules arranged in mirror image for cutting electrode strips to form corresponding positive and negative electrode sheets. The positive and negative electrode sheets are transported to the stacking section via the conveying section to be stacked to form a raw battery cell. The conveying section includes a cutting section arranged near the electrode modules and a stacking section arranged near the stacking section. The cutting section includes a first segment and a second segment arranged sequentially along the first direction. Both the first segment and the second segment include a vacuum belt. The vacuum surfaces of the first segment and the second segment are arranged opposite each other in the longitudinal direction, forming a transition gap between them for conveying the electrode sheets. The first segment also includes a cavity plate. The vacuum belt of the first segment is sleeved on the cavity plate. The cavity plate has outwardly extending light-transmitting support plates on both sides in the width direction of the vacuum belt. A first light source is arranged below the light-transmitting support plates, and a first vision component is arranged above the light-transmitting support plates.

[0006] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0007] The battery electrode cutting and stacking equipment of this utility model can realize automatic cutting and inspection of battery electrodes, and realize the transfer of battery electrodes between the cutting and stacking stations through the conveying unit, which is highly efficient. At the same time, the light-transmitting tray increases the support area of ​​the first section of the conveying unit, i.e., the vacuum belt, in the width direction, so that the battery electrode cutting and stacking equipment can be adapted to the processing of more specifications of battery electrodes. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 A top view of the battery electrode cutting and stacking equipment provided in this embodiment of the utility model;

[0010] Figure 2 This is a front view of the electrode module and the first square tube frame after assembly, as provided in an embodiment of the present utility model.

[0011] Figure 3 This is a three-dimensional structural diagram of the cut segment provided in an embodiment of the present utility model;

[0012] Figure 4 A three-dimensional structural diagram of the first segment provided for an embodiment of this utility model;

[0013] Figure 5 A three-dimensional structural diagram of the downward moving frame provided in an embodiment of this utility model;

[0014] Figure 6 A schematic diagram of the assembly structure of the first vacuum belt and the light-transmitting support plate provided for an embodiment of this utility model;

[0015] Figure 7 A three-dimensional structural schematic diagram of the stacked module provided in an embodiment of this utility model;

[0016] Figure 8 A top view of the stacked module provided in an embodiment of this utility model;

[0017] Figure 9 A schematic diagram of the assembly structure of the first transfer mechanism, the second transfer mechanism, the positioning and correction mechanism, and the stacking mechanism provided for embodiments of this utility model;

[0018] Figure 10 A three-dimensional structural schematic diagram of the first transfer mechanism provided in an embodiment of this utility model;

[0019] Figure 11 A three-dimensional structural schematic diagram of the positioning and correction mechanism provided in an embodiment of this utility model;

[0020] Figure 12 Assembly structure diagram of the first NG mechanism and the positioning and correction mechanism provided for the implementation of this utility model;

[0021] Figure 13A three-dimensional structural schematic diagram of the stacking mechanism provided in an embodiment of this utility model;

[0022] Figure 14 A schematic diagram of the assembly structure of the laminating platform and the pressure knife support plate provided in an embodiment of this utility model;

[0023] Figure 15 for Figure 14 The first exploded structural diagram of the structure shown;

[0024] Figure 16 for Figure 14 The second exploded structure diagram of the structure shown;

[0025] Figure 17 A three-dimensional structural diagram of the diaphragm moving frame assembling the diaphragm provided in an embodiment of this utility model;

[0026] Figure 18 A front view of the diaphragm moving frame assembling the diaphragm provided in an embodiment of this utility model;

[0027] Figure 19 A schematic diagram of the assembly structure of the tail winding mechanism and the adhesive application mechanism provided in this embodiment of the utility model;

[0028] Figure 20 A schematic diagram of the assembly structure of the second load-bearing beam, the film cutting assembly, and the first transfer assembly provided in an embodiment of this utility model;

[0029] Figure 21 This is a first three-dimensional structural schematic diagram of the film cutting assembly provided in an embodiment of the present utility model;

[0030] Figure 22 This is a second three-dimensional structural schematic diagram of the film cutting assembly provided in an embodiment of the present utility model;

[0031] Figure 23 for Figure 22 A schematic diagram of the three-dimensional structure of the film cutting assembly after the tensioning roller has been removed;

[0032] Figure 24 A three-dimensional structural schematic diagram of the first transfer component provided in an embodiment of this utility model;

[0033] Figure 25 A three-dimensional structural schematic diagram of the tail roll assembly provided in an embodiment of this utility model;

[0034] Figure 26 A three-dimensional structural diagram of the adhesive applicator provided in an embodiment of this utility model;

[0035] Figure 27 A three-dimensional structural diagram of the adhesive application table provided in an embodiment of this utility model;

[0036] Figure 28 A three-dimensional structure schematic view of the second transfer assembly provided by the embodiment of the utility model.

[0037] Icons: 1. Slicing section; 1a. Electrode module; 10. Strip unwinding mechanism; 11. Slicing mechanism; 12. Second NG mechanism; 1b. First square tube frame; 2. Stacking section; 2a. Stacking module; 2a1. Second square tube frame; 2a2. Third transfer assembly; 20. Second transfer assembly; 201. Second gripper; 21. Stacking mechanism; 211. Stacking platform; 212. Stacking platform support; 2121. Second fixed base plate; 2122. Long longitudinal plate; 21221. First transmission screw; 2123. Short longitudinal plate; 213. Pressure knife support plate; 2131. Pressure knife plate; 2132. Synchronous belt; 2133. Knife holder; 214. Support box; 215. Side frame; 216. Second transmission screw; 22. Positioning and correction mechanism; 221. Second vision component; 222. Correction table; 223. Adjustment table; 23. Electrode buffer assembly; 24. First load-bearing beam; 241. Diaphragm unwinding mechanism; 242. Diaphragm moving frame; 2421. Third fixed base plate; 2422. Extension plate; 2423. First roller frame; 2424. Third transmission screw; 2425. Upper roller group; 2426. Lower roller group; 25. First transfer mechanism; 251. First fixed base plate; 252. Extension suspension; 253. DD motor; 254. First suction cup; 26. Second transfer mechanism; 27. First NG mechanism; 271. Mounting base; 272. First NG box; 273. Seat plate; 274. Mounting plate; 275. Adjustment plate; 2751. Main suspension plate; 275 2. First suspension; 2753. Second suspension; 276. Negative pressure suction head; 28. Adhesive application mechanism; 281. Adhesive application assembly; 2811. Adhesive application head; 282. Adhesive application table; 2821. Cell clamp; 28211. Upper reference plate; 28212. Lower reference plate; 28213. First fixing post; 28214. First clamping block; 28215. Second clamping block; 28216. Upper drive plate; 28217. Lower drive plate; 282171. Second fixing post; 28218. Transfer post; 2822. Base; 2823. Rotating platform; 2824. Drive cylinder; 29. ​​Tail winding mechanism; 291. Second bearing beam; 292. Tail winding assembly; 2921. Rolling knife; 293. Film cutting assembly; 294. 0. First transfer frame plate; 2931. First fixed plate; 2932. First fixed seat; 2933. Cutting component; 29331. Cutting blade; 29332. Resistance wire cutter; 2934. Upper pressure plate; 2935. Lower pressure plate; 2936. Second transfer frame plate; 2937. Second roller frame; 2938. Tensioning roller; 294. First transfer assembly; 2941. Third fixed plate; 2942. Second fixed seat; 2943. First gripper; 29431. Knife groove; 31. Cutting segment; 311. First segment; 3111. Light-transmitting support plate; 3112. Cavity plate; 3113. First light source; 3114. Support rod; 3115. First vision assembly; 3116. Lower pressure moving frame; 31161. Light-transmitting smoothing plate;31162, Second fixing plate; 3117, Guide plate; 31171, Adjusting rod; 312, Second section; 313a, First vacuum belt; 313b, Second vacuum belt; 313c, First linear scanning camera; 313d, Second linear scanning camera; 32, Stacked section; 4, Shaping section; 5, Positive electrode sheet; 6, Negative electrode sheet; X, First direction; Y, Second direction. Detailed Implementation

[0038] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0039] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Please refer to Figures 1 to 28 A battery electrode cutting and stacking device includes a slicing section 1 and a stacking section 2 arranged sequentially along a first direction X. The slicing section 1 and the stacking section 2 are connected in series by a conveying section extending along the first direction X. The slicing section 1 includes two electrode modules 1a arranged in mirror image for cutting electrode strips to form corresponding positive electrode 5 and negative electrode 6. The positive electrode 5 and negative electrode 6 are transferred to the stacking section 2 by the conveying section to be stacked to form a raw battery cell. The conveying section includes a cutting segment 31 arranged near the electrode module 1a and a stacking segment 32 arranged near the stacking section 2. The cutting segment 31 includes a first segment 3 arranged sequentially along the first direction X. Sections 11 and 312, both the first section 311 and the second section 312, include vacuum belts. The vacuum surfaces of the first section 311 and the second section 312 are arranged longitudinally opposite each other, forming a transition gap between them for transporting the electrode sheets. The first section 311 also includes a cavity plate 3112. The vacuum belt of the first section 311 is sleeved on the cavity plate 3112. On the cavity plate 3112, light-transmitting support plates 3111 extending outward are provided on both sides in the width direction of the vacuum belt. A first light source 3113 is provided below the light-transmitting support plate 3111, and a first vision component 3115 is provided above the light-transmitting support plate 3111. In this embodiment, the process from slicing to transfer to the stacking section 2 is the same for the positive electrode sheet 5 and the negative electrode sheet 6. The following description takes the positive electrode sheet 5 as an example.

[0041] like Figure 2As shown, the electrode module 1a includes a strip unwinding mechanism 10, a slicing mechanism 11, and a second NG mechanism 12 arranged sequentially along the first direction X. A first segment 311 is correspondingly disposed at the slicing mechanism 11, and a second segment 312 is correspondingly disposed at the second NG mechanism 12. The strip unwinding mechanism 10 unwinds the positive electrode sheet 5 strip, which extends to the vacuum surface of the first segment 311 and is adsorbed and fixed thereon. The slicing mechanism 11 cuts the positive electrode sheet 5 strip into several positive electrode sheets 5 of the same specifications. The cut positive electrode sheets 5 are laid flat on the vacuum surface of the first segment 311 and transferred to the vacuum surface of the second segment 312 after passing through a transition gap. In this embodiment, optionally, the vacuum surface of the first segment 311 is arranged facing upwards, and the vacuum surface of the second segment 312 is arranged facing downwards.

[0042] like Figure 3 and Figure 4 As shown, the vacuum belt of the first segment 311 is the first vacuum belt 313a, and the vacuum belt of the second segment 312 is the second vacuum belt 313b.

[0043] The cavity plate 3112 supports the first vacuum belt 313a. At least one support rod 3114 is provided on the side of the cavity plate 3112, and a light-transmitting support plate 3111 is mounted on the support rod 3114. In this embodiment, the upper surface of the light-transmitting support plate 3111 is slightly lower than the vacuum surface of the first section 311. The light-transmitting support plate 3111 supports the positive electrode sheet 5, ensuring that the positive electrode sheet 5 is flattened throughout the first vacuum belt 313a, preventing it from collapsing. Simultaneously, it allows the first light source 3113 to shine through the light-transmitting support plate 3111 onto the positive electrode sheet 5, enabling the first vision component 3115 to photograph and inspect the positive electrode sheet 5. Optionally, the first vision component 3115 is a CCD vision inspection component. This battery electrode sheet cutting and stacking equipment can automatically cut and inspect battery electrodes, and the conveyor unit facilitates the transfer of battery electrodes between the cutting and stacking stations, resulting in high efficiency. Meanwhile, the light-transmitting tray 3111 increases the support area of ​​the first section 311 on the battery electrode in the width direction of the conveying section, i.e., the vacuum belt, so that the battery electrode cutting and stacking equipment can be adapted to the processing of more specifications of battery electrodes.

[0044] like Figure 4 and Figure 5As shown, the first segment 311 also includes an adjustable pressing and moving frame 3116 disposed above the first vacuum belt 313a. The pressing and moving frame 3116 can move closer to or further away from the vacuum surface of the first segment 311 longitudinally. A light-transmitting flat plate 31161 is mounted on the pressing and moving frame 3116. The positive electrode 5 passes through the gap between the light-transmitting support plate 3111 and the light-transmitting flat plate 31161. The light-transmitting flat plate 31161 is located between the light-transmitting support plate 3111 and the first vision component 3115. Preferably, the light-transmitting flat plate 31161 is parallel to the light-transmitting support plate 3111. The light-transmitting flat plate 31161, together with the light-transmitting support plate 3111, is used to smooth the positive electrode sheet 5 within the detection range of the first vision component 3115. Specifically, it flattens the four corners and tabs of the positive electrode sheet 5, so that the positive electrode sheet 5 within the detection range is laid flat on the first vacuum belt 313a, ensuring that the positive electrode sheet 5 is free of wrinkles, curling, and folding during the photo-taking detection, thus preventing the first vision component 3115 from misjudging.

[0045] In this embodiment, the slicing section 1 further includes a first square tube frame 1b, on which the electrode module 1a and the slicing segment 31 are both mounted; the first square tube frame 1b is equipped with a second fixing plate 31162, and the downward moving frame 3116 is slidably connected to the second fixing plate 31162 via a slide rail slider assembly. Figure 4 and Figure 5 As shown, the light-transmitting flat plate 31161 and the pressing and moving frame 3116 are detachably connected by screws or bolts. The pressing and moving frame 3116 has several screw holes spaced along the width direction of the first vacuum belt 313a, allowing the light-transmitting flat plate 31161 to adjust its assembly position in the width direction of the first vacuum belt 313a to accommodate positive electrode sheets 5 of different specifications. The pressing and moving frame 3116 is driven by a servo motor or cylinder to adjust its longitudinal height.

[0046] like Figure 4 and Figure 6As shown, the first segment 311 also includes a guide plate 3117 disposed above the first vacuum belt 313a. The guide plate 3117 is inclined relative to the vacuum surface of the first segment 311. In the first direction X, the distance between the downstream end of the guide plate 3117 and the vacuum surface of the first segment 311 is less than the distance between the upstream end of the guide plate 3117 and the vacuum surface of the first segment 311. The positive electrode 5 on the first vacuum belt 313a passes through the gap between the guide plate 3117 and the vacuum surface of the first segment 311. In this embodiment, in the first direction X, an adjusting rod 31171 is rotatably mounted on the support rod 3114 downstream of the pressing moving frame 3116, and the guide plate 3117 is mounted on the adjusting rod 31171. The adjusting rod 31171 can adjust the size of the gap between the guide plate 3117 and the vacuum surface of the first segment 311. The guide plate 3117 here is used to smooth the positive electrode plate 5 in order to cooperate with subsequent inspections such as line scanning cameras to inspect the positive electrode plate 5, and to prevent the positive electrode plate 5 from tilting up, which would cause the line scanning camera to misjudge.

[0047] like Figure 2 and Figure 3 As shown, the line scan camera includes a first line scan camera 313c and a second line scan camera 313d. The first line scan camera 313c is located above the first segment 311, and the second line scan camera 313d is located below the second segment 312. It is used to detect the front and back sides of the positive electrode 5. The qualified positive electrode 5 is transported to the stacking segment 32, while the defective products are stored in the second NG mechanism 12 within the second segment 312.

[0048] like Figure 1 , Figures 7 to 9 As shown, the lamination section 2 includes at least two lamination modules 2a spaced apart along the first direction X, and the second segment 312 connects the at least two lamination modules 2a in series. Each lamination module 2a includes a lamination mechanism 21, with positioning and correction mechanisms 22 arranged on both sides of the lamination mechanism 21 in the second direction Y. There are two lamination segments 32, with the lamination mechanism 21 and the positioning and correction mechanisms 22 located between the two segments. An electrode buffer assembly 23 is arranged between the positioning and correction mechanism 22 and the adjacent lamination segment 32. The second direction Y is perpendicular to the first direction X, and both the first direction X and the second direction Y are parallel to the horizontal plane. The lamination module 2a also includes a first support beam 24 extending along the second direction Y. The first support beam 24 is movably provided with a first transfer mechanism 25 for transferring the electrode from the lamination segment 32 to the positioning and correction mechanism 22, and a second transfer mechanism 26 for transferring the electrode from the positioning and correction mechanism 22 to the lamination mechanism 21. A diaphragm unwinding mechanism 241 is provided on the first support beam 24. Figures 7 to 9As shown, there are two stacking segments 32, corresponding to two electrode modules 1a, i.e., two cutting segments 31. The stacking segment 32 on the right side of the second direction Y transports the positive electrode 5, and the stacking segment 32 on the left side of the second direction Y transports the negative electrode 6. 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 5 to the stacking 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 6 to the stacking mechanism 21 in a specific posture.

[0049] In some embodiments, an electrode buffer assembly 23 is provided between the positioning and correction mechanism 22 and the stacked segment 32 on the same side of the stacking mechanism 21. Specifically, the first transfer mechanism 25 transfers the electrodes to the electrode buffer assembly 23 for material preparation, so as to provide uninterrupted material supply to the second transfer mechanism 26, thereby improving production efficiency.

[0050] In this embodiment, the lamination module 2a also includes a second square tube frame 2a1, and the first supporting beam 24, lamination mechanism 21, positioning and correction mechanism 22, electrode buffer mechanism and lamination segment 32 are all installed on the second square tube frame 2a1.

[0051] like Figure 9 As shown, the first transfer mechanism 25 and the second transfer mechanism 26 are movably mounted on the first load-bearing beam 24 via a linear module.

[0052] Specifically, such as Figure 10 As shown, 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 movably mounted longitudinally on the first fixed base plate 251 via a slide rail slider assembly. The first suction cup 254 is rotatably connected to the extension suspension 252 via a DD motor 253. In use, the extension suspension 252 is driven longitudinally by a transmission screw or cylinder mounted on the first fixed base plate 251 to adjust the longitudinal position of the first suction cup 254. In this embodiment, when the positive electrode 5 and negative electrode 6 are on the conveying section, their length direction is parallel to the second direction Y, while when the positive electrode 5 and negative electrode 6 are on the stacking mechanism 21, their length direction is parallel to the first direction. Here, during the transfer of the corresponding positive electrode 5 and negative electrode 6 by the first transfer mechanism 25, they are rotated 90° in the horizontal plane. The first suction cup 254 is used to grab the positive electrode 5 and negative electrode 6 on the stacking segment 32, and after adjusting the angle, it is used to transfer them to the corresponding positioning and correction mechanism 22 for spatial position adjustment before stacking.

[0053] In some embodiments, the second transfer mechanism 26 and the first transfer mechanism 25 have the same structure. In another embodiment, the second transfer mechanism 26 lacks the DD motor 253 compared to the first transfer mechanism 25; that is, the first suction cup 254 is fixedly mounted to the extension suspension 252.

[0054] like Figure 11 As shown, the positioning and correction mechanism 22 includes a correction platform 222 and a second vision component 221 disposed above the correction platform 222. The correction platform 222 is adjustablely mounted on the second square tube frame 2a1 via an adjustment platform 223. Optionally, the second vision component 221 is mounted on the first supporting beam 24. The adjustment platform 223 is a vision alignment platform. In use, the first transfer mechanism 25 transfers the positive electrode 5 and the negative electrode 6 to the corresponding correction platform 222, cooperating with the second vision component 221 and the adjustment platform 223 to adjust the spatial position of the positive electrode 5 and the negative electrode 6 to ensure the positional accuracy during subsequent stacking.

[0055] like Figure 9 and Figure 12 As shown, the stacking module 2a also includes a first NG mechanism 27 located near the positioning and correction mechanism 22. The first NG mechanism 27 includes a first NG box 272 located on the side of the positioning and correction mechanism 22 along the first direction X, and a mounting base 271 located on the side of the positioning and correction mechanism 22 along the second direction Y. An NG gripper is movably mounted on the mounting base 271, which is used to transfer the NG electrode sheets located at the positioning and correction mechanism 22 to the first NG box 272. It should be noted that on the correction table 222, the second vision component 221 can also detect the electrode sheets, namely the positive electrode sheet 5 and the negative electrode sheet 6, while positioning and taking pictures. During this process, the NG electrode sheets are transferred to the first NG box 272 for recycling through the NG gripper to further ensure the quality of the produced batteries.

[0056] Furthermore, such as Figure 12As shown, the NG gripper includes a base plate 273, a mounting plate 274, and an adjusting plate 275. The base plate 273 is movably mounted on the mounting base 271 along a first direction X and its opposite direction. The mounting plate 274 is movably mounted on the base plate 273 along a longitudinal direction. The adjusting plate 275 is mounted on the mounting plate 274. Multiple negative pressure suction heads 276 are adjustablely mounted on the mounting plate 274. Specifically, the mounting base 271 is mounted on the second square tube frame 2a1. The base plate 273 is movably mounted on the mounting base 271 via a slide rail slider assembly and is driven by a transmission screw or cylinder mounted on the mounting base 271 to move closer to or further away from the alignment table 222. The mounting plate 274 is movably mounted on the base plate 273 along a longitudinal direction via a slide rail slider assembly and is driven by a transmission screw or cylinder mounted on the base plate 273. This configuration allows the negative pressure suction head 276 on the adjustment plate 275 to adjust its vertical height while simultaneously reciprocating between the correction table 222 and the first NG box 272, continuously transferring the NG electrode to the first NG box 272.

[0057] More specifically, the adjusting plate 275 includes a main suspension plate 2751, a first auxiliary suspension 2752, and a second auxiliary suspension 2753. The main suspension plate 2751 is fixedly mounted to the mounting plate 274, the first auxiliary suspension 2752 is fixedly mounted to the main suspension plate 2751, and the two second auxiliary suspensions 2753 are correspondingly mounted at the two ends of the first auxiliary suspension 2752 along its length. The first auxiliary suspension 2752 has a first adjusting groove and a second adjusting groove along its length, and the second auxiliary suspension 2753 has a third adjusting groove along its length. The length direction of the first auxiliary suspension 2752 is perpendicular to the length direction of the second auxiliary suspension 2753. The second auxiliary suspension 2753 is adjustablely mounted in the first adjusting groove, and both the second and third adjusting grooves can adjustably accommodate negative pressure suction heads 276. This arrangement allows for easy adjustment of the position of the negative pressure suction heads 276 according to the specifications of the electrode sheets, thus adapting to the needs of transferring electrode sheets of various specifications.

[0058] like Figures 13 to 16 As shown, the stacking mechanism 21 includes a stacking platform 211, a stacking support base 212, and a pressure knife support plate 213. The stacking platform 211 and the pressure knife support plate 213 are both longitudinally adjustablely mounted on the stacking support base 212. There are two pressure knife support plates 213, with the stacking platform 211 and the stacking support base 212 positioned between the two pressure knife support plates 213. Two pressure knife seats are movably mounted on the pressure knife support plate 213, and the two pressure knife seats can move closer to or further away from each other. A pressure knife plate 2131 is longitudinally adjustablely mounted on each pressure knife seat. In this embodiment, the stacking platform 211 has a negative pressure hole, which can adsorb the separator during the stacking process. The pressure knife plate 2131 is used to press the cell structure, i.e., the original cell, composed of the positive electrode 5, the negative electrode 6, and the separator during the stacking process.

[0059] Furthermore, such as Figure 15 and Figure 16 As shown, the stacking support base 212 includes a second fixed base plate 2121, a long longitudinal plate 2122, and a short longitudinal plate 2123. The long longitudinal plate 2122 and the short longitudinal plate 2123 are both fixedly installed on the second fixed base plate 2121. Two short longitudinal plates 2123 are correspondingly arranged at the two ends of the long longitudinal plate 2122 along its length. A stacking platform plate 211 is assembled onto the long longitudinal plate 2122, and a pressure knife support plate 213 is assembled onto the short longitudinal plate 2123. The long longitudinal plate 2122 and the short longitudinal plate 2123 installed on the second fixed base plate 2121 form an I-shaped structure. The pressure knife support plate 213 is slidably installed longitudinally onto the short longitudinal plate 2123 via a slide rail slider assembly, and the stacking platform plate 211 is slidably installed longitudinally onto the long longitudinal plate 2122 via the slide rail slider assembly. Specifically, a cylinder or transmission screw is mounted on the longitudinal plate 2122 to drive the pressure knife support plate 213 and the stacking table 211 to move longitudinally, so as to continuously adjust the height of the pressure knife plate 2131 and the stacking table 211 during the stacking process. In this embodiment, by means of... Figure 15 and Figure 16 The first transmission screw 21221 shown drives the pressure knife support plate 213 and the stacking platform 211 to move longitudinally. In this embodiment, the stacking platform 211 is L-shaped, as shown... Figure 16 As shown, one part is slidably connected to the longitudinal plate 2122, and the other part is located on top of the longitudinal plate 2122 to support the separator and battery electrodes (positive electrode 5 and negative electrode 6).

[0060] Furthermore, a tool holder 2133 is slidably mounted on the pressure plate 213 along its length via a slide rail slider assembly, and a pressure plate 2131 is adjustablely mounted on the tool holder 2133 via a cylinder. Optionally, in this embodiment, the tool holder 2133 is driven by a timing belt 2132 mounted on the pressure plate 213 or by a cylinder to adjust the position of the pressure plate 2131 along the length of the electrode sheet, thereby adapting to the processing of electrode sheets of different specifications. The timing belt 2132 driving the tool holder 2133 is a conventional technique and will not be described in detail here. It should be noted that, as... Figure 15 As shown, on the same pressure support plate 213, there are two tool holders 2133 along its length, one of which is engaged with the upper side of the timing belt 2132 and the other is engaged with the lower side of the timing belt 2132, so that the two tool holders 2133 can move closer or further away synchronously.

[0061] like Figure 13As shown, in this embodiment, the stacking mechanism 21 further includes two side frames 215 disposed on the second square tube frame 2a1. A support box 214 is disposed at the bottom of the stacking platform support 212. The support box 214 is located between the two side frames 215 and is slidably connected to the side frames 215 longitudinally via a slide rail slider assembly. Further, a second transmission screw 216 is disposed on one of the side frames 215. The support box 214 is threadedly connected to the second transmission screw 216 and is driven by the second transmission screw 216 to move longitudinally. This arrangement allows the overall height of the stacking mechanism 21 to be raised or lowered longitudinally.

[0062] In this embodiment, the stacking mechanism 21 further includes a diaphragm moving frame 242 disposed on the first supporting beam 24. The diaphragm moving frame 242 is located between the two second transfer mechanisms 26 and is capable of reciprocating 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 disposed on the first supporting beam 24.

[0063] like Figure 17 and Figure 18 As shown, the diaphragm moving frame 242 includes a third fixed base plate 2421, an extension plate 2422, and a first roller frame 2423. Two extension plates 2422 are provided on the third fixed base plate 2421. The first roller frame 2423 is located between the two extension plates 2422 and is slidably connected to the extension plates 2422 through a slide rail slider assembly. The first roller frame 2423 can move along the width direction of the diaphragm. An upper roller group 2425 is provided above the first roller frame 2423, and a lower roller group 2426 is provided below the first roller frame 2423. A third transmission screw 2424 is provided on the third fixed base plate 2421. The first roller frame 2423 is threadedly connected to and driven by the third transmission screw 2424. In this embodiment, the upper roller group 2425 and the lower roller group 2426 are both two passing rollers. The passing rollers are rotatably mounted on the first roller frame 2423. The diaphragm extends from the upper roller group 2425 to the lower roller group 2426 to the stacking table 211 and is fixed by the pressure plate 2131 in conjunction with the stacking table 211.

[0064] In use, the third drive screw 2424 rotates to drive the first roller frame 2423 to reciprocate in the diaphragm width direction to correct the diaphragm deviation.

[0065] Specifically, during operation, after the free end of the separator is fixed to the stacking platform 211, two second transfer mechanisms 26 respectively transfer the positive electrode 5 and the negative electrode 6, and cooperate with the separator moving frame 242 to complete the battery electrode stacking process. The battery electrode stacking is an existing process and will not be described in detail here.

[0066] like Figure 7 , Figure 9 and Figure 19As shown, the stacking module 2a also includes a tail winding mechanism 29, which 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 stacking mechanism 21, and the tail winding assembly 292 is located on the movement path of the film cutting assembly 293 and the first transfer assembly 294 approaching or moving away from the stacking mechanism 21. In use, after the original battery cell is stacked at the stacking mechanism 21, both the film cutting assembly 293 and the first transfer assembly 294 move towards the stacking mechanism 21. The first transfer assembly 294 passes over the film cutting assembly 293, grabs the original battery cell, and moves it towards the tail winding assembly 292 to a tail winding diaphragm of appropriate length. At this time, the film cutting assembly 293 fixes the diaphragm on one side of the original battery cell and cuts it. The diaphragm on one side of the stacking mechanism 21 continues to the next round of stacking, and the diaphragm on the original battery cell side participates in the tail winding of the original battery cell diaphragm. Specifically, the first transfer component 294 transfers the original battery cell to the tail roll component 292, and the film cutting component 293 fixes the free end of the tail roll diaphragm and gradually approaches the tail roll component 292 as the tail roll action of the tail roll component 292 is performed to maintain a certain tension on the tail roll diaphragm.

[0067] Specifically, such as Figure 19 and Figure 20 As shown, the tail roll mechanism 29 also includes a second bearing beam 291, which extends along the second direction Y and is fixedly installed on the second square tube frame 2a1. The first transfer component 294 and the film cutting component 293 are both assembled to the second bearing beam 291 through a linear module and driven by it to move along the second direction Y.

[0068] like Figures 21 to 23 As shown, the film cutting assembly 293 includes a first fixing plate 2931. A first fixing seat 2932 is adjustablely mounted on the first fixing plate 2931 along the longitudinal direction. A cutting element 2933 is adjustablely mounted on the side of the first fixing seat 2932 facing the diaphragm unwinding mechanism 241 along the longitudinal direction. An upper pressure plate 2934 and a lower pressure plate 2935 are adjustablely mounted on the side of the first fixing plate 2931 facing away from the diaphragm unwinding mechanism 241 along the longitudinal direction. The upper pressure plate 2934 and the lower pressure plate 2935 can move closer to or further away from each other, and the diaphragm passes through the gap between the upper pressure plate 2934 and the lower pressure plate 2935. In this embodiment, the cutting element 2933 includes a cutting blade 29331. The cutting blade 29331 is movably mounted on the first fixing seat 2932 along the longitudinal direction via a slide rail slider assembly and is driven to move along the longitudinal direction by a cylinder provided on the first fixing seat 2932. A resistance wire cutter 29332 is mounted on the cutting blade 29331. like Figure 23As shown, both the upper pressure plate 2934 and the lower pressure plate 2935 are equipped with first adapter plates 2930. The first adapter plates 2930 are longitudinally movably assembled with the first fixed base 2932 via a slide rail slider assembly and are driven by cylinders mounted on the first fixed base 2932, allowing the upper pressure plate 2934 and the lower pressure plate 2935 to move closer or further apart. The lower pressure plate 2935 is equipped with negative pressure holes for adsorbing the diaphragm. The upper pressure plate 2934 cooperates with the lower pressure 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 component 294 passes through the gap between the upper pressure plate 2934 and the lower pressure plate 2935, crosses the film cutting component 293, reaches the stacking mechanism 21 to pick up the original battery cell, and transfers the original battery cell from the side of the film cutting component 293 near the stacking mechanism 21 to the side of the film cutting component 293 away from the stacking mechanism 21 through the gap between the upper pressure plate 2934 and the lower pressure plate 2935.

[0069] In this embodiment, the first fixing base 2932 is movably mounted to the first fixing plate 2931 along the longitudinal direction via a linear module. Further, as... Figure 22 As shown, the film cutting assembly also includes a tensioning roller 2938, the axial direction of which is parallel to the width direction of the diaphragm. The tensioning roller 2938 is used to adjust the tension of the diaphragm during the tail-winding process. Specifically, a second transition plate 2936 is fixedly mounted on the first transition plate 2930 of the upper pressure plate 2934. A second roller frame 2937 is adjustable along the longitudinal direction on the second transition plate 2936, and the tensioning roller 2938 is rotatably mounted on the second roller frame 2937. In this embodiment, a guide shaft is disposed on the second roller frame 2937, the guide shaft passing through and slidably connected to the second transition plate 2936. A cylinder for driving the second roller frame 2937 to move longitudinally is mounted on the second transition plate 2936.

[0070] like Figure 25 As shown, the tail winding assembly 292 is existing technology and will not be described in detail here. It should be noted that during the tail winding process of the original battery cell, the winding knife 2921 clamps the original battery cell and is wrapped by the tail winding diaphragm.

[0071] like Figure 24As shown, the first transfer assembly 294 includes a third fixing plate 2941, a second fixing seat 2942, and two first grippers 2943. The third fixing plate 2941 is movably mounted to the second supporting beam 291 along the second direction Y via a linear module. The second fixing seat 2942 is movably mounted to the third fixing plate 2941 along the longitudinal direction via a linear module. The two first grippers 2943 are adjustablely mounted to the second fixing seat 2942 along the longitudinal direction via a slide rail slider assembly and are driven by a cylinder to allow them to move closer or further apart. It should be noted that the first grippers 2943 are equipped with a cutter groove 29431 to avoid the winding cutter 2921. The two first grippers 2943 are mirror-oriented for gripping the unwound raw battery cell. The winding cutter 2921 is positioned within the cutter groove 29431 so that it can be smoothly withdrawn from the raw battery cell when the first grippers 2943 grip it.

[0072] like Figure 8 , Figure 19 and Figure 26 As shown, in this embodiment, the stacking module 2a further includes an adhesive application mechanism 28. The adhesive application mechanism 28 includes two adhesive application components 281 arranged in a mirror image. An adhesive application table 282 is disposed between the two adhesive application components 281. The adhesive application table 282 includes a base 2822 movably disposed on the second square tube frame 2a1 via a slide rail slider assembly to adjust the spatial position between the adhesive application table 282 and the adhesive application components 281 to facilitate the subsequent unloading of the original battery cells. A battery cell clamp 2821 is rotatably disposed on the base 2822 in the horizontal plane for clamping the original battery cells. The battery cell clamp 2821 has a clearance notch for avoiding the first gripper 2943, so that the first transfer assembly 294 can transfer the original battery cells from the tail winding assembly 292 to the adhesive application table 282. In this embodiment, the two adhesive application components 281 can move closer to or further away from each other, thereby moving closer to or further away from the adhesive application table 282 to apply adhesive to the original battery cells to fix the diaphragm. The adhesive application table 282 rotates to facilitate adhesive application to the original battery cell in both the length and width directions using the same adhesive application component 281, improving efficiency and reducing costs. In this embodiment, the adhesive application component 281 is prior art and will not be described in detail here. It should be noted that the adhesive application component 281 has an adhesive application head 2811, and the width of the clearance notch is greater than the width of the adhesive application head 2811. This allows the adhesive application head 2811 to extend into the clearance notch during the adhesive application process, giving the original battery cell a longer adhesive application length, ensuring the reliability of the adhesive application, while not affecting the clamping of the original battery cell by the battery cell holder 2821.

[0073] like Figure 27As shown, the cell clamp 2821 includes an upper reference plate 28211 and a lower reference plate 28212 spaced longitudinally from top to bottom, and an upper drive plate 28216 and a lower drive plate 28217 spaced longitudinally from top to bottom. The upper reference plate 28211 and the lower reference plate 28212 are fixedly connected by a first fixing post 28213, and the upper drive plate 28216 and the lower drive plate 28217 are fixedly connected by a second fixing post 282171. The upper drive plate 28216 is located between the upper reference plate 28211 and the lower reference plate 28212, and the second fixing post 282171 passes through it. A lower reference plate 28212 is slidably connected to it. A longitudinally extending transmission column 28218 is mounted on the lower reference plate 28212. The base 2822 is located below the lower drive plate 28217. The two are rotatably connected by a rotating platform 2823 mounted on the base 2822. A drive cylinder 2824 is mounted on the base 2822. The transmission column 28218 passes through the lower drive plate 28217 and is slidably connected to it. At the same time, the transmission column 28218 passes through the rotating platform 2823 and is connected to the drive cylinder 2824. It should be noted that the rotating platform 2823 is a hollow rotating platform 2823. The upper reference plate 28211 is provided with a plurality of first clamping blocks 28214, and the upper drive plate 28216 is provided with a plurality of second clamping blocks 28215. The first clamping blocks 28214 and the second clamping blocks 28215 are located between the upper drive plate 28216 and the upper reference plate 28211. The original battery cell is located between the first clamping blocks 28214 and the second clamping blocks 28215. The aforementioned clearance notches are formed between two adjacent first clamping blocks 28214 and between two adjacent second clamping blocks 28215. In use, the lower reference plate 28212, the upper reference plate 28211, and the first clamping blocks 28214 move synchronously. The drive cylinder 2824 drives the lower reference plate 28212, i.e., the first clamping block 28214, to move longitudinally closer to or away from the second clamping block 28215 through the transmission column 28218 to clamp or release the original battery cell.

[0074] like Figure 19 and Figure 28 As shown, the stacking module 2a also includes a second transfer assembly 20, having a second gripper 201 movably disposed along the longitudinal direction for transferring the original battery cells after adhesive bonding. This is prior art and will not be described further here.

[0075] like Figure 1As shown, the stacking section 2 also includes a third transfer assembly 2a2, which has a transfer beam spanning all stacking modules 2a along the first direction X. A third gripper is adjustablely mounted on the transfer beam; this is prior art and will not be described further. In use, the second gripper 201 transfers the raw, glued battery cell to the third gripper, which then transfers it to the shaping section 4 for cold pressing and / or hot pressing to achieve the desired dimensions for subsequent casing operations. This is also prior art and will not be described further.

[0076] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A battery electrode cutting and stacking device, characterized in that, The device includes a slicing section and a stacking section arranged sequentially along a first direction, the slicing section and the stacking section being connected in series via a conveying section extending along the first direction; the slicing section includes two mirror-arranged electrode modules for cutting electrode strips to form corresponding positive and negative electrode sheets, the positive and negative electrode sheets being transferred to the stacking section via the conveying section to be stacked to form a raw battery cell, wherein: The conveying section includes a cutting section disposed near the electrode module and a stacking section disposed near the stacking section. The cutting section includes a first segment and a second segment arranged sequentially along a first direction. Both the first segment and the second segment include a vacuum belt. The vacuum surfaces of the first segment and the second segment are arranged opposite each other in the longitudinal direction, forming a transition gap between them for conveying the electrode. The first segment also includes a cavity plate. The vacuum belt of the first segment is sleeved on the cavity plate. The cavity plate has outwardly extending light-transmitting support plates on both sides in the width direction of the vacuum belt. A first light source is disposed below the light-transmitting support plates, and a first vision component is disposed above the light-transmitting support plates.

2. The battery pole piece slitting and folding apparatus of claim 1, wherein, The first segment also includes an adjustable pressing and moving frame disposed above the vacuum belt, the pressing and moving frame being able to move closer to or further away from the vacuum surface of the first segment in the longitudinal direction; a light-transmitting flat plate is mounted on the pressing and moving frame, the electrode passes through the gap between the light-transmitting support plate and the light-transmitting flat plate, the light-transmitting flat plate being located between the light-transmitting support plate and the first vision component.

3. The battery electrode cutting and stacking equipment according to claim 1, characterized in that, The first segment also includes a guide plate disposed above the vacuum belt. The guide plate is inclined relative to the vacuum surface of the first segment. In the first direction, the distance between the downstream end of the guide plate and the vacuum surface of the first segment is less than the distance between the upstream end of the guide plate and the vacuum surface of the first segment. The electrode on the first vacuum belt passes through the gap between the guide plate and the vacuum surface of the first segment.

4. The battery pole piece slitting and folding apparatus of claim 1, wherein, The stacking section includes at least two stacking modules spaced apart along the first direction, and the second segment connects the at least two stacking modules in series; The stacking module includes a stacking mechanism, and the stacking mechanism is provided with positioning and correction mechanisms on both sides of the second direction. There are two stacking segments, and the stacking mechanism and the positioning and correction mechanisms are located between the two stacking segments. 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 stacking module further includes a first support beam extending along the second direction, on which a first transfer mechanism for transferring the electrode from the stacking section to the positioning and correction mechanism, and a second transfer mechanism for transferring the electrode from the positioning and correction mechanism to the stacking mechanism are movably provided. The first load-bearing beam is equipped with a diaphragm unwinding mechanism.

5. The battery pole piece slitting and folding apparatus of claim 4, wherein, The stacking module further includes a first NG mechanism located near the positioning and correction mechanism. The first NG mechanism includes a first NG box located on one side of the positioning and correction mechanism along the first direction, and a mounting base located on one side of the positioning and correction mechanism along the second direction. An NG gripper is movably mounted on the mounting base, and the NG gripper is used to transfer the NG electrode at the positioning and correction mechanism to the first NG box.

6. The battery electrode cutting and stacking equipment according to claim 5, characterized in that, The NG gripper includes a base plate, a mounting plate, and an adjustment plate. The base plate is movably disposed on the mounting base along the first direction and its opposite direction. The mounting plate is movably disposed on the base plate along the longitudinal direction. The adjustment plate is disposed on the mounting plate. Multiple negative pressure suction heads are adjustablely mounted on the mounting plate.

7. The battery electrode cutting and stacking equipment according to claim 4, characterized in that, The stacking mechanism includes a stacking platform, a stacking support base, and a pressure knife support plate. The stacking platform and the pressure knife support plate are both longitudinally adjustable and mounted on the stacking support base. There are two pressure knife support plates, and the stacking platform and the stacking support base are located between the two pressure knife support plates. Two pressure seats are movably mounted on the pressure support plate. The two pressure seats can move closer to or further away from each other. A pressure plate is adjustablely mounted on the pressure seat along the longitudinal direction.

8. The battery electrode cutting and stacking equipment according to claim 7, characterized in that, The stacking support includes a base plate, a long longitudinal plate, and a short longitudinal plate. The long longitudinal plate and the short longitudinal plate are both fixedly installed on the base plate. The two short longitudinal plates are respectively arranged at the two ends of the long longitudinal plate along its length. The stacking platform is assembled on the long longitudinal plate, and the pressure knife support plate is assembled on the short longitudinal plate.

9. The battery pole piece slitting and folding apparatus of claim 4, wherein, The stacking module also includes a tail roll mechanism, which includes a tail roll assembly, a film cutting assembly, and a first transfer assembly. The film cutting assembly and the first transfer assembly can be close to or away from the stacking mechanism, and the tail roll assembly is located on the movement path of the film cutting assembly and the first transfer assembly as they approach or move away from the stacking mechanism.

10. The battery electrode cutting and stacking equipment according to claim 9, characterized in that, The film cutting assembly includes a first fixing plate, on which a first fixing seat is adjustablely mounted longitudinally. A cutting element is adjustablely mounted longitudinally on the side of the first fixing seat facing the diaphragm unwinding mechanism. An upper pressure plate and a lower pressure plate are adjustablely mounted longitudinally on the side of the first fixing plate facing away from the diaphragm unwinding mechanism. The upper pressure plate and the lower pressure plate can move closer to each other or further away from each other, and the diaphragm passes through the gap between the upper pressure plate and the lower pressure plate.

11. The battery pole piece slitting and folding apparatus of claim 10, wherein, The film cutting assembly also includes a tensioning roller, the axial direction of which is parallel to the width direction of the diaphragm.

12. The battery pole piece slitting and folding apparatus of claim 4, wherein, The stacking module also includes an adhesive applicator, which includes two adhesive applicator components arranged in a mirror image and an adhesive applicator platform disposed between the two adhesive applicator components. The adhesive applicator platform includes a base, on which a cell clamp is rotatably disposed in a horizontal plane. The cell clamp has an avoidance notch. The adhesive applicator component has an adhesive applicator head, and the width of the avoidance notch is greater than the width of the adhesive applicator head.

13. The battery pole piece slitting and folding apparatus of claim 12, wherein, The cell clamp includes an upper reference plate and a lower reference plate spaced vertically from top to bottom, and an upper drive plate and a lower drive plate spaced vertically from top to bottom. The upper reference plate and the lower reference plate are fixedly connected by a first fixing post, and the upper drive plate and the lower drive plate are fixedly connected by a second fixing post. The upper drive plate is located between the upper reference plate and the lower reference plate, and the second fixing post passes through the lower reference plate and is slidably connected to it. The lower reference plate is equipped with a longitudinally extending transmission column, the base is located below the lower drive plate, and the two are rotatably connected by a rotating platform mounted on the base. The base is equipped with a drive cylinder, the transmission column passes through the lower drive plate and is slidably connected to it, and the transmission column passes through the rotating platform and is connected to the drive cylinder. The upper reference plate is provided with a plurality of first clamping blocks, and the upper drive plate is provided with a plurality of second clamping blocks. The first clamping blocks and the second clamping blocks are located between the upper drive plate and the upper reference plate, and the clearance gap is formed between two adjacent first clamping blocks and between two adjacent second clamping blocks.

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