Slitting and winding equipment

Abstract

The utility model relates to the technical field of lithium battery pole piece production, in particular to slitting and rolling equipment. Comprising an unwinding device used for unwinding a pole piece; the slitting device comprises a slitting assembly and a slitting assembly, the slitting assembly is used for receiving the pole piece output from the unwinding device and slitting the pole piece in the length direction of the pole piece so as to form a first slitting belt and a second slitting belt, and the slitting assembly is used for receiving the first slitting belt and the second slitting belt and slitting the pole piece in the length direction of the pole piece so as to form a second slitting belt. The first slitting belt and the second slitting belt are output according to a first preset path and a second preset path respectively; and the winding device comprises a first winding assembly and a second winding assembly, the first winding assembly is used for receiving the first slitting belt output from the first preset path and winding the first slitting belt, and the second winding assembly is used for receiving the second slitting belt output from the second preset path and winding the second slitting belt.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pole piece production, in particular to a slitting and winding device. Background Art

[0002] Lithium batteries are widely used in various fields due to their high energy ratio, long service life, high safety, high specific capacity and other properties. Therefore, the pole piece slitting machine has become an indispensable part of the battery production process, and the market has become more stringent in controlling the degree of equipment automation and production quality. The slitting machine cuts wide battery pole pieces to obtain multiple pole pieces of the expected width and size, and rolls each pole piece in an orderly manner.

[0003] The existing slitting and winding equipment usually adopts a turret for winding, which includes a turntable, a driving motor for driving the turntable to rotate and two or more winding shafts installed on the turntable. When working, a part of the winding shafts on the turntable are wound first, and the other part of the winding shafts are on standby. Until the current winding shaft is full, the driving motor drives the turntable to rotate, so that the unwound winding shaft reaches the winding position for the splicing and winding process; however, the load of the turret after winding is large, and the turret needs to rotate a large angle when rotating and switching winding, which requires a large space and has a high space occupancy rate, which is not conducive to the setting of the whole equipment. At the same time, the efficiency of receiving and changing rolls is low, which is not suitable for industrial applications. In addition, the traditional slitting equipment lacks the automation settings of unwinding, winding feeding and unloading, and cannot achieve automatic slitting operations with a higher degree of automation, and the production efficiency cannot be improved.

[0004] Therefore, it is necessary to propose a technical means to solve the above defects. Utility Model Content

[0005] The utility model adopts the following technical solutions:

[0006] A slitting and winding device, comprising an unwinding device for unwinding a pole piece; a slitting device, the slitting device comprising a slitting assembly for receiving the pole piece outputted from the unwinding device and slitting the pole piece along its length direction to form a first slitting tape and a second slitting tape, and a slitting assembly for receiving the first slitting tape and the second slitting tape and outputting the first slitting tape and the second slitting tape along a first preset path and a second preset path respectively;

[0007] A winding device, the winding device comprising a first winding assembly for receiving the first slit tape output from the first preset path and winding it, and a second winding assembly for receiving the second slit tape output from the second preset path and winding it; wherein,

[0008] The first winding assembly includes a first winding shaft, a second winding shaft and a first traction unit; the first winding shaft and the second winding shaft are arranged side by side and are used to wind up the first slit tape; the first traction unit is used to receive the first slit tape output from the first preset path, and pull the first slit tape to the first winding shaft or the second winding shaft for winding as needed;

[0009] The second winding assembly is symmetrically arranged with the first winding shaft and has the same structure, and includes a third winding shaft, a fourth winding shaft and a second traction unit; the third winding shaft and the fourth winding shaft are arranged side by side, and are used to wind up the second slit tape, and the second traction unit is used to receive the second slit tape output from the second preset path, and pull the second slit tape to the third winding shaft or the fourth winding shaft for winding as needed.

[0010] Preferably, the unwinding device comprises an unwinding turret for unwinding the pole piece, and a cutting assembly for receiving the pole piece output from the unwinding turret and cutting the pole piece as required.

[0011] Preferably, the slitting device includes a cutter assembly; the cutter assembly includes an upper roller and a lower roller arranged above and below, which are used to cut the pole piece longitudinally to separate it into the first slitting band and the second slitting band, and a first drive unit and a second drive unit connected to the upper roller and the lower roller, which are used to drive the upper roller and the lower roller to rotate.

[0012] Preferably, the first traction unit includes a first connecting frame, which is installed between the first winding shaft and the second winding shaft; a first moving module, which is connected to the connecting frame and is used to drive the first connecting frame to reciprocate between a first preset position close to the first winding shaft and a second preset position close to the second winding shaft; a first guide roller and a second guide roller, which are installed on the first connecting frame and are used for the first slitting tape to pass through the roller; a first traction roller, which is installed on the first connecting frame and is used to rotate relative to the second guide roller when the first connecting frame moves to the first preset position, so that it pulls the first slitting tape and abuts against the first winding shaft, so that the first winding shaft rewinds the first slitting tape; a second traction roller, which is installed on the first connecting frame and is used to rotate relative to the second guide roller when the first connecting frame moves to the second preset position, so that it pulls the first slitting tape and abuts against the second winding shaft, so that the second winding shaft rewinds the second slitting tape;

[0013] A cutter module group, the cutter module group includes a second cutter installed in the first traction roller, a first drive group installed in the first traction roller and used to drive the second cutter to extend out or return to the first traction roller, a third cutter installed in the second traction roller, and a second drive group installed in the second traction roller and used to drive the third cutter to extend out or return to the second traction roller.

[0014] Preferably, the second guide roller includes an outer cylinder and an inner cylinder installed in the outer cylinder; the inner cylinder is connected to the third drive group, and is used to rotate under the drive of the third drive group; the outer cylinder is connected to the fourth drive group, and is used to rotate under the drive of the fourth drive group; the first traction roller is connected to the inner cylinder through a first connecting arm, and is used to rotate when the inner cylinder rotates; the second traction roller is connected to the outer cylinder through a second connecting arm, and is used to rotate when the outer cylinder rotates.

[0015] Preferably, the first winding shaft and the second winding shaft are arranged from top to bottom; the first winding assembly also includes a first pressing wheel unit adjacent to the first winding shaft, used to abut and compact the first slitting tape on the first winding shaft when the first winding shaft winds up the first slitting tape, and a second pressing wheel unit adjacent to the second winding shaft, used to press and compact the first slitting tape on the first winding shaft when the second winding shaft winds up the first slitting tape.

[0016] Preferably, the first pressure wheel unit includes a first pressure wheel and a first swing arm module connected to the first pressure wheel, used to drive the first pressure wheel to press against the first slitting tape when the first reel reels up the first slitting tape; the second pressure wheel unit includes a second pressure wheel and a second swing arm module connected to the second pressure wheel, used to drive the second pressure wheel to press against the first slitting tape when the first reel reels up the first slitting tape.

[0017] Preferably, the first winding assembly further includes a discharging unit for discharging the first slit tape after winding on the first winding shaft and the second winding shaft.

[0018] Preferably, the unloading unit includes a unloading arm adjacent to the first reel or the second reel, a third swing arm module for the unloading end of the unloading arm to be mounted on the first reel or the second reel, and a second movable module for driving the unloading arm to move along the axial direction of the first reel or the second reel.

[0019] Preferably, the third swing arm module includes a third fixed plate and a third cylinder; the connecting end of the unloading arm is rotatably connected to the first end of the third fixed plate; one end of the third cylinder is rotatably connected to the unloading arm, and the other end is rotatably connected to the first end of the third fixed plate; the second moving module includes a servo motor and a screw connected to the servo motor; the third fixed plate is connected to the screw, and is used to drive the unloading arm to move axially along the first winding shaft or the second winding shaft under the drive of the screw.

[0020] The utility model relates to a slitting and winding device, which has a high degree of automation through the arrangement of a reeling device, a slitting device and a reeling device; through the arrangement of a first traction unit and a second traction unit, the reel changing efficiency between the first reeling shaft and the second reeling shaft, and the reel changing efficiency between the third reeling shaft and the fourth reeling shaft can be effectively improved, thereby improving the slitting and winding efficiency of the device for the electrode sheet, and is suitable for industrial applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of a slitting and winding device of the utility model;

[0022] Figure 2 It is a schematic diagram of the winding of the first slitting belt and the second slitting belt on the first preset path and the second preset path in a slitting and winding device of the utility model;

[0023] Figure 3 It is a schematic diagram of a material unwinding turret in a slitting and winding device of the utility model;

[0024] Figure 4 It is a schematic diagram of a cutting component in a slitting and winding device of the utility model;

[0025] Figure 5 It is a schematic diagram of a cutter assembly in a slitting and winding device of the utility model;

[0026] Figure 6 It is a schematic cross-sectional structure diagram of a cutter assembly in a slitting and winding device of the utility model;

[0027] Figure 7 It is a schematic diagram of a deviation correction unit in a slitting and winding device of the utility model;

[0028] Figure 8 It is a schematic diagram of a first traction unit in a slitting and winding device of the utility model;

[0029] Fig. 9 It is a schematic cross-sectional structure diagram of a first traction unit in a slitting and winding device of the utility model;

[0030] Figures 10 to 16 It is a schematic diagram of the roll-changing and traction process of the first slitting belt by the first traction unit in the slitting and rewinding equipment of the utility model;

[0031] Fig.17 and Fig.18 It is a schematic diagram of the process of the second cutter cutting the first slit tape in a slitting and winding device of the utility model;

[0032] Fig.19 It is a schematic diagram of a second pressing wheel unit in a slitting and winding device of the utility model;

[0033] Fig. 20 It is a schematic diagram of a first pressing wheel unit in a slitting and winding device of the utility model;

[0034] Fig.21 The utility model is a schematic diagram of a discharging unit in a slitting and winding device. DETAILED DESCRIPTION

[0035] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1 As shown, a slitting and winding device includes

[0039] An unwinding device 10, used for unwinding the pole piece A;

[0040] The slitting device 20 includes a slitting assembly for receiving the electrode piece A outputted from the unwinding device 10 and slitting the electrode piece A along its length direction to form a first slitting tape B and a second slitting tape C, and a slitting assembly for receiving the first slitting tape B and the second slitting tape C and outputting the first slitting tape B and the second slitting tape C along a first preset path and a second preset path respectively;

[0041] The winding device 30 includes a first winding assembly 301 for receiving and winding the first slit tape B output from the first preset path, and a second winding assembly 302 for receiving and winding the second slit tape C output from the second preset path; wherein,

[0042] The first winding assembly 301 includes a first winding shaft 303, a second winding shaft 304 and a first traction unit 305; the first winding shaft 303 and the second winding shaft 304 are arranged side by side and are used to wind up the first slit tape B; the first traction unit 305 is used to receive the first slit tape B output from the first preset path and pull the first slit tape B to the first winding shaft 303 or the second winding shaft 304 for winding as needed;

[0043] The second winding assembly 302 is symmetrically arranged with the first winding shaft 303 and has the same structure, and includes a third winding shaft 309, a fourth winding shaft 310 and a second traction unit 311; the third winding shaft 309 and the fourth winding shaft 310 are arranged side by side for winding up the second slit tape C, and the second traction unit 311 is used to receive the second slit tape C output from the second preset path, and pull the second slit tape C to the third winding shaft 309 or the fourth winding shaft 310 for winding up as needed.

[0044] The utility model relates to a slitting and winding device, which, through the arrangement of a first traction unit 305 and a second traction unit 311, can effectively improve the winding efficiency between the first winding shaft 303 and the second winding shaft 304, and the winding efficiency between the third winding shaft 309 and the fourth winding shaft 310, thereby improving the slitting and winding efficiency of the device for the electrode A, and is suitable for industrial applications.

[0045] In a specific embodiment, Figure 3As shown, the unwinding device 10 includes an unwinding turret 101 for unwinding the pole piece A, and a cutting assembly 102 for receiving the pole piece A output from the unwinding turret 101 and cutting the pole piece A as needed. Specifically, in the present embodiment, the unwinding turret 101 has a first unwinding shaft 103 and a second unwinding shaft 104 which can rotate about the same center. The first unwinding shaft 103 and the second unwinding shaft 104 are both used for unwinding and outputting the pole piece A, and rotate about the center when the first unwinding shaft 103 or the second unwinding shaft 104 finishes unwinding, so that the first unwinding shaft 103 and the second unwinding shaft 104 exchange positions, and then the fully loaded first unwinding shaft 103 or the second unwinding shaft 104 continues the unwinding work of the pole piece A, so that the pole piece A can be continuously cut and reeled; in addition, the cutting component 102 is used to cut the pole piece A when the unwinding of the first unwinding shaft 103 or the second unwinding shaft 104 is about to end, so that the subsequent first unwinding shaft 103 and the second unwinding shaft 104 can smoothly rotate and exchange positions, so as to continue the subsequent work; further, as Figure 4 As shown, the cutting assembly 102 includes a winding roller 105 for receiving the pole piece A output from the unwinding turret 101, a rubber pressing roller 106 for pressing the pole piece A downward, and a first cutter 107 for cutting the pole piece A; further, during operation, the pole piece A output from the first unwinding shaft 103 or the second unwinding shaft 104 successively passes around the winding roller 105 and the rubber pressing roller 106, at which time the pole piece A is located below the rubber pressing roller 106 and below the first cutter 107, and then the rubber pressing roller 106 moves downward and presses the pole piece A, and then the first cutter 107 moves upward to cut the pole piece A.

[0046] In a specific embodiment, the slitting device 20 includes a cutter assembly 201; Figure 5 as well as Figure 6As shown, the cutter assembly 201 includes an upper roller 205 and a lower roller 206 which are arranged above and below and are used to cut the pole piece A longitudinally to separate it into a first slitting band B and a second slitting band C, and a first driving unit 207 and a second driving unit 208 which are connected to the upper roller 205 and the lower roller 206 and are used to drive the upper roller 205 and the lower roller 206 to rotate. Specifically, in the present embodiment, the slitting device 20 also includes a pole piece A correction component; the pole piece A correction component includes a correction unit 202, a CCD camera unit 203 and a labeling unit 204; specifically, the correction unit 202 is used for outputting the pole piece A to the cutter component 201 for position correction before slitting, and the CCD camera unit 203 is used for visually inspecting the first slitting tape B and the second slitting tape C after slitting, and inspecting their width after slitting and whether there are defects. If the visually inspected width is different from the preset result, then the control program controls the correction unit 202 to perform position correction on the pole piece A to adjust the width of the first slitting tape B and the second slitting tape C after slitting. If the visually inspected first slitting tape B or the second slitting tape C has defects, the labeling unit 204 marks the defective position with a label. Specifically, the correction unit 202 is located on one side of the input end of the cutter component 201, such as Figure 7 As shown, it includes a mounting seat 209, and a deflection correction roller 210 movably mounted on the mounting seat 209, and the deflection correction roller 210 can swing back and forth relative to the mounting seat 209 along the travel direction of the pole piece A. During operation, the pole piece A is rolled over the deflection correction roller 210. When the position of the pole piece A needs to be adjusted as needed, the deflection correction roller 210 can be driven to deflect in the width direction of the material belt, so as to adjust the position of the pole piece A before it is output to the slitting assembly. Further, the CCD camera unit 203 and the labeling unit 204 are arranged on the first preset path and the second preset path, so as to perform visual inspection and defect labeling on the first slitting belt B and the second slitting belt C on the first preset path and the second preset path; further, the labeling unit 204 includes a labeling machine.

[0047] In a specific embodiment, Figure 8 as well as Fig. 9As shown, the first traction unit 305 includes a first connecting frame 312, which is installed between the first winding shaft 303 and the second winding shaft 304; a first moving module 313, which is connected to the connecting frame 312 and is used to drive the first connecting frame 312 to reciprocate between a first preset position close to the first winding shaft 303 and a second preset position close to the second winding shaft 304; a first guide roller 314 and a second guide roller 315, which are installed on the first connecting frame 312 and are used for the first slitting belt B to pass the roller; a first traction roller 316, which is installed on the first connecting frame 312 and is used for rotating relative to the second guide roller 315 when the first connecting frame 312 moves to the first preset position, so that it pulls the first slitting belt B and moves with the first The winding shaft 303 is in contact with each other, so that the first winding shaft 303 winds up the first slitting tape B; the second traction roller 317, the second traction roller 317 is installed on the first connecting frame 312, and is used for rotating relative to the second guide roller 315 when the first connecting frame 312 moves to the second preset position, so that it pulls the first slitting tape B and abuts against the second winding shaft 304, so that the second winding shaft 304 winds up the second slitting tape C; the cutting knife module group, the cutting knife module group includes a second cutter 324 installed in the first traction roller 316, a first drive group installed in the first traction roller 316 and used to drive the second cutter 324 to extend out or return to the first traction roller 316, a third cutter installed in the second traction roller 317, and a second drive group installed in the second traction roller 317 and used to drive the third cutter to extend out or return to the second traction roller 317.

[0048] Specifically, the working process of the first traction unit 305 is described below with reference to the accompanying drawings.

[0049] like Fig.10 As shown, at this time, the first connecting frame 312 is located at the center of the first winding shaft 303 and the second winding shaft 304, and the first slit tape B is guided by the first guide roller 314 and the second guide roller 315 and is wound by the first winding shaft 303. When the first winding shaft 303 is wound, it is necessary to use the second winding shaft 304 to continue winding, as shown in FIG. Fig.11 The first moving module 313 drives the first connecting frame 312 to move to the second preset position, and then Fig.12 As shown, the second traction roller 317 rotates relative to the second guide roller 315, thereby pulling the first slit tape B to abut against the second winding shaft 304. At this time, the third cutter in the second traction roller 317 extends out of the second traction roller 317 under the drive of the second driving group, and cuts the first slit tape B, so that the second winding shaft 304 can wind up the first slit tape B. When the second winding shaft 304 is winding up, as shown in FIG. Fig.13As shown, the first connecting frame 312 is driven by the first moving module 313 to return to the center of the first winding shaft 303 and the second winding shaft 304, so that the second winding shaft 304 can continue to wind up the first slit tape B; when the second winding shaft 304 has finished winding up, it is necessary to use the first winding shaft 303 to continue winding up (at this time, the first winding shaft 303 of the previous working step is replaced), as shown in FIG. Fig.14 , the first moving module 313 moves the first connecting frame 312 to the first preset position, and then Fig.15 As shown, the first traction roller 316 rotates relative to the second guide roller 315, thereby pulling the first slit tape B to abut against the first winding shaft 303. At this time, the second cutter 324 in the first traction roller 316 extends out of the first traction roller 316 under the drive of the first driving group, and cuts the first slit tape B, so that the first winding shaft 303 can wind up the first slit tape B. When the first winding shaft 303 is winding up, as shown in FIG. Fig.16 As shown, the first connecting frame 312 is driven by the first moving module 313 to return to the center of the first winding shaft 303 and the second winding shaft 304, so that the first winding shaft 303 can continue to wind up the first slit tape B;

[0050] Furthermore, the end of the first traction roller 316 or the second winding shaft 304 is provided with a sensor (not shown in the figure) for detecting the position of the second cutter 324 or the third cutter when it rotates with the first traction roller 316 or the second traction roller 317; because when changing the roll, the first traction roller 316 or the second traction roller 317 abuts against the first winding shaft 303 and the second winding shaft 304, the provision of the sensor prevents the second cutter 324 or the third cutter from extending out of the first traction roller 316 or the second traction roller 317 to cut the first slit tape B and causing interference with the first winding shaft 303 or the second winding shaft 304, thereby improving the rationality of the device. Furthermore, the following description of the working steps when the first traction roller 316 abuts against the first winding shaft 303 and the second cutter 324 cuts the first slit tape B is combined with the accompanying drawings, as shown in FIG. Fig.17 As shown, at this time, the first traction roller 316 is in contact with the first winding shaft 303, and the second cutter 324 is located inside the first traction roller 316. Fig.18 As shown, when the second cutter 324 rotates with the first traction roller 316, it is gradually extended from the first traction roller 316 under the drive of the first driving group, thereby cutting the first slit belt B. Similarly, the cutting step sequence of the first slit belt B by the third cutter can be obtained, which will not be repeated here.

[0051] In a specific embodiment, Figure 8 as well as Fig. 9As shown, the second guide roller 315 includes an outer cylinder 321 and an inner cylinder 320 installed in the outer cylinder 321; the inner cylinder 320 is connected to the third drive group 318, and is used to rotate under the drive of the third drive group 318; the outer cylinder 321 is connected to the fourth drive group 319, and is used to rotate under the drive of the fourth drive group 319; the first traction roller 316 is connected to the inner cylinder 320 through the first connecting arm 322, and is used to rotate when the inner cylinder 320 rotates; the second traction roller 317 is connected to the outer cylinder 321 through the second connecting arm 323, and is used to rotate when the outer cylinder 321 rotates.

[0052] In a specific embodiment, Figure 1 As shown, the first winding shaft 303 and the second winding shaft 304 are arranged from top to bottom; the first winding assembly 301 also includes a first pressing wheel unit 306 adjacent to the first winding shaft 303, used to abut and compact the first slit tape B on the first winding shaft 303 when the first winding shaft 303 winds up the first slit tape B, and a second pressing wheel unit 307 adjacent to the second winding shaft 304, used to press and compact the first slit tape B on the first winding shaft 303 when the second winding shaft 304 winds up the first slit tape B.

[0053] In a specific embodiment, Fig. 20 As shown, the first pressing wheel unit 306 includes a first pressing wheel 331 and a first swing arm module connected to the first pressing wheel 331 and used to drive the first pressing wheel 331 to press against the first slitting tape B when the first reel 303 reels the first slitting tape B; Fig.19 As shown, the second pressing wheel unit 307 includes a second pressing wheel 336 and a second swing arm module connected to the second pressing wheel 336, and is used to drive the second pressing wheel 336 to press against the first slitting tape B when the first reel 303 reels the first slitting tape B. Specifically, the first pressing wheel 331 and the second pressing wheel 336 are used to press against the first slitting tape B when the first reel 303 or the second reel 304 reels the first slitting tape B, thereby improving the stability of the first reel 303 and the second reel 304 when reeling the first slitting tape B. Further, as Fig. 20 As shown, the first swing arm module includes a first fixing frame 332, a first fixing plate 333 installed on the first fixing frame 332, a third connecting arm 334 rotatably installed on the first end of the first fixing plate 333, and a first cylinder 335 rotatably connected to the second end of the first fixing plate 333 at the other end, and rotatably connected to the middle of the third connecting arm 334 at the other end; the first pressing wheel 331 is installed at the free end of the third connecting arm 334; in this embodiment, the third connecting arm 334 is driven to swing by the first cylinder 335, so that the first pressing wheel 331 is close to or away from the first slit tape B on the first winding shaft 303; as shown in FIG. Fig.19As shown, the second swing arm module includes a second fixed frame 337, a second fixed plate 338 installed on the second fixed frame 337, a fourth connecting arm 339 rotatably installed on the first end of the second fixed plate 338, and a second cylinder 340 rotatably connected to the second end of the second fixed plate 338 at the other end, and rotatably connected to the middle of the third connecting arm 334 at the other end; the second pressure wheel 336 is installed at the free end of the fourth connecting arm 339; in this embodiment, the fourth connecting arm 339 is driven to swing by the second cylinder 340, so that the second pressure wheel 336 approaches or moves away from the first slitting belt B on the second winding shaft 304.

[0054] In a specific embodiment, Figure 1 As shown, the first winding assembly 301 further includes a discharging unit 308 for discharging the first slit tape B after winding on the first winding shaft 303 and the second winding shaft 304 .

[0055] In a specific embodiment, Fig.21 As shown, the unloading unit 308 includes an unloading arm 325 adjacent to the first reel 303 or the second reel 304, a third swing arm module for the unloading end of the unloading arm 325 to be mounted on the first reel 303 or the second reel 304, and a second moving module for driving the unloading arm 325 to move along the axial direction of the first reel 303 or the second reel 304. Specifically, the unloading end of the unloading arm 325 is provided with an arc-shaped slot 326 for being mounted on the first reel 303 or the second reel 304.

[0056] Further, the third swing arm module includes a third fixed plate 327 and a third cylinder 328; the connecting end of the unloading arm 325 is rotatably connected to the first end of the third fixed plate 327; one end of the third cylinder 328 is rotatably connected to the unloading arm 325, and the other end is rotatably connected to the first end of the third fixed plate 327; the second moving module includes a servo motor 329 and a screw rod 330 connected to the servo motor 329; the third fixed plate 327 is connected to the screw rod 330, and is used to drive the unloading arm 325 to move axially along the first winding shaft 303 or the second winding shaft 304 under the drive of the screw rod 330.

[0057] The utility model relates to a slitting and winding device, which has a high degree of automation through the arrangement of a reeling device, a slitting device and a reeling device; through the arrangement of a first traction unit 305 and a second traction unit 311, the reel changing efficiency between the first reeling shaft 303 and the second reeling shaft 304, and the reel changing efficiency between the third reeling shaft 309 and the fourth reeling shaft 310 can be effectively improved, thereby improving the slitting and winding efficiency of the device for the electrode A, and is suitable for industrial applications.

[0058] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A slitting and winding device, characterized in that: include Unwinding device, used for unwinding the pole piece; A slitting device, the slitting device is used to receive the electrode piece output from the unwinding device and slit the electrode piece along its length direction to form a first slitting tape and a second slitting tape, and a slitting assembly for receiving the first slitting tape and the second slitting tape, and outputting the first slitting tape and the second slitting tape along a first preset path and a second preset path respectively; A winding device, the winding device comprising a first winding assembly for receiving the first slit tape output from the first preset path and winding it, and a second winding assembly for receiving the second slit tape output from the second preset path and winding it; wherein, The first winding assembly includes a first winding shaft, a second winding shaft and a first traction unit; the first winding shaft and the second winding shaft are arranged side by side and are used to wind up the first slit tape; the first traction unit is used to receive the first slit tape output from the first preset path, and pull the first slit tape to the first winding shaft or the second winding shaft for winding as needed; The second winding assembly is symmetrically arranged with the first winding shaft and has the same structure, and includes a third winding shaft, a fourth winding shaft and a second traction unit; the third winding shaft and the fourth winding shaft are arranged side by side, and are used to wind up the second slit tape, and the second traction unit is used to receive the second slit tape output from the second preset path, and pull the second slit tape to the third winding shaft or the fourth winding shaft for winding as needed.

2. The slitting and winding device according to claim 1, characterized in that: The unwinding device includes an unwinding turret for unwinding the pole piece, and a cutting assembly for receiving the pole piece output from the unwinding turret and cutting the pole piece as needed.

3. The slitting and winding device according to claim 1, characterized in that: The slitting device includes a cutter assembly; the cutter assembly includes an upper roller and a lower roller arranged above and below, which are used to longitudinally cut the pole piece to separate it into the first slitting band and the second slitting band, and a first driving unit and a second driving unit connected to the upper roller and the lower roller, which are used to drive the upper roller and the lower roller to rotate.

4. The slitting and winding device according to claim 1, characterized in that: The first traction unit includes A first connecting frame, wherein the first connecting frame is installed between the first winding shaft and the second winding shaft; A first movable module, the first movable module is connected to the connecting frame and is used to drive the first connecting frame to reciprocate between a first preset position close to the first winding shaft and a second preset position close to the second winding shaft; A first guide roller and a second guide roller, wherein the first guide roller and the second guide roller are installed on the first connecting frame and are used for passing the first slit belt; a first traction roller, which is installed on the first connecting frame and is used to rotate relative to the second guide roller when the first connecting frame moves to the first preset position, so as to pull the first slit tape and abut against the first reel, so that the first reel reels the first slit tape; a second traction roller, which is installed on the first connecting frame and is used to rotate relative to the second guide roller when the first connecting frame moves to the second preset position, so as to pull the first slit tape and abut against the second reel, so that the second reel reels the second slit tape; A cutter module group, the cutter module group includes a second cutter installed in the first traction roller, a first drive group installed in the first traction roller and used to drive the second cutter to extend out or return to the first traction roller, a third cutter installed in the second traction roller, and a second drive group installed in the second traction roller and used to drive the third cutter to extend out or return to the second traction roller.

5. The slitting and winding device according to claim 4, characterized in that: The second guide roller includes an outer cylinder and an inner cylinder installed in the outer cylinder; the inner cylinder is connected to the third drive group and is used to rotate under the drive of the third drive group; The outer cylinder is connected to the fourth drive group and is used to rotate under the drive of the fourth drive group; the first traction roller is connected to the inner cylinder through a first connecting arm and is used to rotate with the inner cylinder when the inner cylinder rotates; the second traction roller is connected to the outer cylinder through a second connecting arm and is used to rotate with the outer cylinder when the outer cylinder rotates.

6. The slitting and winding device according to claim 1, characterized in that: The first winding shaft and the second winding shaft are arranged from top to bottom; the first winding assembly also includes a first pressing wheel unit adjacent to the first winding shaft, used to abut and compact the first slit tape on the first winding shaft when the first winding shaft winds up the first slit tape, and a second pressing wheel unit adjacent to the second winding shaft, used to press and compact the first slit tape on the first winding shaft when the second winding shaft winds up the first slit tape.

7. The slitting and winding device according to claim 6, characterized in that: The first pressure wheel unit includes a first pressure wheel and a first swing arm module connected to the first pressure wheel and used to drive the first pressure wheel to press against the first slitting tape when the first reel reels up the first slitting tape; the second pressure wheel unit includes a second pressure wheel and a second swing arm module connected to the second pressure wheel and used to drive the second pressure wheel to press against the first slitting tape when the first reel reels up the first slitting tape.

8. The slitting and winding device according to claim 1, characterized in that: The first winding assembly further includes a discharging unit for discharging the first slit tape after winding on the first winding shaft and the second winding shaft.

9. The slitting and winding device according to claim 8, characterized in that: The unloading unit includes an unloading arm adjacent to the first reel or the second reel, a third swing arm module for the unloading end of the unloading arm to be mounted on the first reel or the second reel, and a second moving module for driving the unloading arm to move along the axial direction of the first reel or the second reel.

10. The slitting and winding device according to claim 9, characterized in that: The third swing arm module includes a third fixed plate and a third cylinder; the connecting end of the unloading arm is rotatably connected to the first end of the third fixed plate; one end of the third cylinder is rotatably connected to the unloading arm, and the other end is rotatably connected to the first end of the third fixed plate; the second moving module includes a servo motor and a screw connected to the servo motor; the third fixed plate is connected to the screw, and is used to drive the unloading arm to move axially along the first winding shaft or the second winding shaft under the drive of the screw.

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