Large lithium battery pole piece continuous slitting machine

Abstract

The invention discloses a large lithium battery pole piece continuous slitting machine which is characterized by comprising a deviation rectifying mechanism, a belt pressing platform mechanism, a traction compression roller mechanism, a slitting mechanism, an edge material collecting mechanism, a roller brush dust removing mechanism, a vibration dust removing mechanism, a pole piece cutting mechanism and a turret transposition winding mechanism. The automatic functions of automatic deviation correction, automatic traction, automatic slitting, automatic edge material collecting, automatic dust removal, automatic material belt cutting, automatic transposition winding and the like of the pole piece material belt can be completed, the turret transposition winding mechanism is of a turret type design, different winding parts can be switched to conduct material belt winding under the state that the equipment is not stopped, and the winding efficiency is improved. And moreover, the pole piece can be ensured to run stably, so that the slitting stability of the pole piece is ensured, and various process indexes such as burrs, straightness and the like can meet high-standard requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production equipment, and more specifically, to a large-scale lithium battery pole piece continuous slitting machine. Background Art

[0002] In the process of lithium battery processing and production, the pole pieces need to be stripped. Traditional lithium battery pole piece stripping requires manual assistance, which is time-consuming and labor-intensive, reducing work efficiency. At the same time, manual assistance operations are prone to danger and are not conducive to user use. In addition, traditional lithium battery pole piece stripping cannot ensure smooth pole piece conveying, resulting in unstable pole piece cutting, burrs, straightness and other process indicators are not within the process range, which is not conducive to lithium battery pole piece processing and production. In response to these defects, the applicant has previously developed a lithium battery pole piece continuous slitting machine, and its patent authorization announcement number is CN110508860A. The slitting machine includes a reel barrel, a traction roller, a slitting knife frame housing, a suction assembly, a follower plate, a trimming assembly, a belt pressure wheel body, a rotating support assembly, a winding threaded rod, a material receiving rack, a rotating motor and a feed trolley. However, the slitting machine still has the following shortcomings: 1. It does not have a deviation correction function, and the pole piece material belt is prone to deviation; 2. It does not have a dust removal function, and the powder generated on the pole piece material belt will pollute the equipment and the environment; 3. When the winding mechanism has finished winding the material belt, it needs to stop and unload the roll manually. Summary of the invention

[0003] The object of the present invention is to overcome the above-mentioned defects in the prior art and to provide a large-scale lithium battery pole piece continuous slitting machine which can complete the automatic functions of automatic deviation correction, automatic traction, automatic slitting, automatic edge collection, automatic dust removal, automatic strip cutting, automatic position change and winding of pole piece material strips.

[0004] To achieve the above-mentioned purpose, the present invention provides a large-scale lithium battery pole piece continuous slitting machine, including a correction mechanism for correcting the pole piece material strip, a belt pressing platform mechanism for pressing the pole piece material strip, a traction pressure roller mechanism for providing traction power to the pole piece material strip, a slitting mechanism for slitting the pole piece material strip, a side material collection mechanism for winding up the excess side edge materials after slitting, a roller brush dust removal mechanism for roller brush dust removal of the pole piece material strip after slitting, a pole piece cutting mechanism for cutting the pole piece material strip when each winding position of the turret transposition winding mechanism has finished winding up the pole piece material strip, and a pole piece cutting mechanism for switching different winding positions without stopping the machine. A turret transposition and winding mechanism for winding up the electrode material strip, the deflection correction mechanism, traction and pressure roller mechanism, slitting mechanism, roller brush dust removal mechanism, electrode cutting mechanism and turret transposition and winding mechanism are arranged in sequence along the conveying direction of the electrode strip, at least one belt guide roller is provided between the deflection correction mechanism and the traction and pressure roller mechanism, between the traction and pressure roller mechanism and the slitting mechanism, between the slitting mechanism and the roller brush dust removal mechanism, and between the roller brush dust removal mechanism and the electrode cutting mechanism, the belt pressing platform mechanism is installed in the middle of the deflection correction mechanism, the edge material collection mechanism is provided with two groups and are respectively located below the discharge side of the slitting mechanism, and the turret transposition and winding mechanism is provided with at least two winding positions.

[0005] Preferably, the correction mechanism includes a correction base plate, a correction adjustment plate, a correction adjustment device, a correction roller and a correction roller bracket. The correction adjustment device is provided with four groups and is respectively connected between the correction base plate and the correction adjustment plate. Every two groups of correction adjustment devices are arranged in an eight-shaped shape. Each group of correction adjustment devices includes a correction adjustment column, an adjustment column mounting seat and a bearing seat. The two ends of the correction adjustment column are respectively mounted on the correction base plate through the adjustment column mounting seats. The bearing seat is movably mounted on the correction adjustment column. The top of the bearing seat is connected to the correction adjustment plate. Two correction rollers are provided and are parallel to each other. Each correction roller is mounted on the correction adjustment plate through the correction roller brackets at both ends.

[0006] Preferably, the belt pressing platform mechanism includes a belt pressing platform, a belt pressing rod, a belt pressing rod lifting drive device and a belt pressing platform dust box. The belt pressing rods are provided with two and are arranged in parallel above both sides of the belt pressing platform. The belt pressing rod lifting drive device is installed on the belt pressing platform. The belt pressing rod lifting drive device is respectively connected to the two belt pressing rods and can drive them to move up and down. The belt pressing platform dust box is installed at the bottom of the belt pressing platform. A dust inlet connected to the belt pressing platform dust box is opened on the belt pressing platform.

[0007] Preferably, the traction roller mechanism includes a traction roller, a traction roller driving device, a traction roller, a roller swing seat, and a roller swing driving device. The traction roller driving device is transmission-connected to the traction roller and drives the traction roller to rotate. The traction roller is movably installed on one side of the traction roller through the roller swing seat. The roller swing driving device is transmission-connected to the roller swing seat. The roller swing driving device can drive the traction roller to rest against the traction roller.

[0008] Preferably, the slitting mechanism comprises a slitting knife holder film group and a knife holder fixing device, the slitting knife holder film group is installed on the knife holder fixing device, and a slitting knife is provided on the slitting knife holder film group.

[0009] Preferably, the edge material collecting mechanism includes a winding roller mounting seat, an edge material winding roller, an edge material winding roller driving device, an edge material pressure roller and an edge material pressure roller translation device. The edge material winding roller is rotatably mounted on the winding roller mounting seat, the edge material winding roller driving device is mounted on the winding roller mounting seat and is transmission connected to the edge material winding roller, the edge material winding roller driving device can drive the edge material winding roller to rotate, the edge material pressure roller is arranged parallel to one side of the edge material winding roller, the edge material pressure roller translation device is mounted on the winding roller mounting seat and is transmission connected to the edge material pressure roller, and the edge material pressure roller translation device can drive the edge material pressure roller to approach or move away from the edge material winding roller.

[0010] Preferably, the roller brush dust removal mechanism includes a roller brush dust box, a roller brush dust removal brush, a brush rotation drive device, a brush translation drive device and a dust suction pipe, the roller brush dust removal boxes are provided with two and are parallel to each other, the two roller brush dust removal boxes are respectively provided with openings on the inner sides, a gap for the pole piece to pass through is formed between the two roller brush dust removal boxes, the roller brush dust removal brush is installed inside the two roller brush dust removal boxes, the brush rotation drive device is respectively connected to the two roller brush dust removal brushes and can drive them to rotate, the brush translation drive device is respectively connected to the two roller brush dust removal boxes, the brush translation drive device can drive the two roller brush dust removal boxes to move closer to or away from each other, and the dust suction pipe is installed at the bottom of the two roller brush dust removal boxes and is connected to the inside of the roller brush dust removal boxes.

[0011] Preferably, the pole piece cutting mechanism includes a belt holding roller, a belt holding roller turning seat, a belt holding roller turning drive device, a cutter, a cutter rotating seat and a cutter rotating drive device. The belt holding roller is rotatably mounted on the belt holding roller turning seat, the belt holding roller turning drive device is transmission connected to the belt holding roller turning seat and can drive it to turn up and down, the cutter rotating drive device is mounted on both sides of the belt holding roller turning seat, the cutter rotating drive device is transmission connected to the cutter rotating seat and can drive it to turn up and down, and the cutter is mounted on the cutter rotating seat and is located on the discharge side of the belt holding roller.

[0012] Preferably, the turret position changing and winding mechanism includes a rotating disk, a slip shaft, a roll changing rotating main shaft, a roll changing rotating drive device, a combined gear and a winding drive device, the rotating disk is installed on the roll changing rotating main shaft, one end of the roll changing rotating main shaft is connected to the output shaft of the roll changing rotating drive device, the slip shaft is provided with two and are parallel to each other, one end of the two slip shafts is respectively connected to the rotating disk for rotation, the roll changing rotating drive device can drive the roll changing rotating main shaft, the rotating disk and the two slip shafts to rotate, the combined gear is installed on the roll changing rotating main shaft, the winding drive device is connected to the combined gear through a first gear chain assembly, and one end of the two slip shafts is respectively connected to the combined gear through a second gear chain assembly, and the winding drive device can drive the slip shaft to rotate relative to the rotating disk.

[0013] Preferably, the slitting machine also includes a vibrating dust removal mechanism for vibrating dust removal on the pole piece material strip, the vibrating dust removal mechanism is located between the roller brush dust removal mechanism and the pole piece cutting mechanism, the vibrating dust removal mechanism includes a dust removal side machine base, a vibrator, a dust removal guide roller, a vibrating dust removal upper brush, a vibrating dust removal lower brush, an air knife, a vibrating dust collection box and a protective cover, the dust removal guide roller is provided with two and is installed in parallel between the two dust removal side machine bases, the vibrator is installed at the bottom of the two dust removal side machine bases, the vibrating dust removal upper brush and the vibrating dust removal lower brush are both located between the two dust removal guide rollers, the vibrating dust removal upper brush is located between the upper parts of two adjacent vibrating dust removal lower brushes, the air knives are respectively located above the two dust removal guide rollers, the vibrating dust collection box is located between the lower parts of the two dust removal guide rollers, and the protective cover is located between the upper parts of the two dust removal guide rollers and covers the upper part of the vibrating dust removal brush.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The structural design of the present invention is reasonable, and it is equipped with a correction mechanism, a belt pressing platform mechanism, a traction and pressure roller mechanism, a slitting mechanism, an edge material collection mechanism, a roller brush dust removal mechanism, a pole piece cutting mechanism and a turret position change and winding mechanism, which can complete automatic functions such as automatic correction of the pole piece strip, automatic traction, automatic slitting, automatic edge material collection, automatic dust removal, automatic strip cutting, automatic position change and winding, etc. The turret position change and winding mechanism adopts a turret design, and can switch between different winding positions to wind the strip without stopping the equipment, and the present invention can ensure the smooth running of the pole piece, thereby ensuring the stability of the pole piece slitting, and various process indicators such as burrs and straightness can meet high standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a large lithium battery pole piece continuous slitting machine provided by an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of a large lithium battery pole piece continuous slitting machine provided by an embodiment of the present invention;

[0019] Figure 3 is a structural schematic diagram of a deviation correction mechanism provided by an embodiment of the present invention;

[0020] Figure 4 is a structural schematic diagram of a belt pressing platform mechanism provided by an embodiment of the present invention;

[0021] Figure 5 is a structural schematic diagram of a traction roller mechanism provided by an embodiment of the present invention;

[0022] Figure 6 is a structural schematic diagram of a slitting mechanism provided by an embodiment of the present invention;

[0023] Figure 7 is a schematic structural diagram of a tool holder fixing device provided in an embodiment of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the edge material collecting mechanism provided by an embodiment of the present invention;

[0025] Fig. 9 is a structural schematic diagram of a roller brush dust removal mechanism provided by an embodiment of the present invention;

[0026] Fig.10 is a cross-sectional view of a roller brush dust removal mechanism provided by an embodiment of the present invention;

[0027] Fig.11 The structure of the vibration dust removal mechanism provided by the embodiment of the present invention is shown in FIG. Figure 1 ;

[0028] Fig.12 The structure of the vibration dust removal mechanism provided by the embodiment of the present invention is shown in FIG. Figure 2 ;

[0029] Fig.13 is a schematic structural diagram of a pole piece cutting mechanism provided by an embodiment of the present invention;

[0030] Fig.14It is a schematic diagram of the cooperation between the pole piece cutting mechanism and the slip shaft of the turret transposition and winding mechanism provided by an embodiment of the present invention;

[0031] Fig.15 The structure of the turret transposition winding mechanism provided by the embodiment of the present invention is shown in FIG. Figure 1 ;

[0032] Fig.16 The structure of the turret transposition winding mechanism provided by the embodiment of the present invention is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Please refer to Figure 1 and Figure 2 The embodiment of the present invention provides a large-scale lithium battery pole piece continuous slitting machine, including a correction mechanism 1 for correcting the pole piece material strip, a belt pressing platform mechanism 2 for pressing the pole piece material strip, a traction pressure roller mechanism 3 for providing traction power to the pole piece material strip, a slitting mechanism 4 for slitting the pole piece material strip, a side material collection mechanism 5 for winding up the excess side materials on both sides after slitting, a roller brush dust removal mechanism 6 for roller brush dust removal of the pole piece material strip after slitting, a vibration dust removal mechanism 9 for vibrating dust removal of the pole piece material strip, a pole piece cutting mechanism 7 for cutting the pole piece material strip when each winding position of the turret transposition winding mechanism has finished winding up the pole piece material strip, and a pole piece cutting mechanism 7 for switching different The turret transposition winding mechanism 8 for winding the electrode material strip at the winding position, the deviation correction mechanism 1, the traction roller mechanism 3, the slitting mechanism 4, the roller brush dust removal mechanism 6, the electrode cutting mechanism 7 and the turret transposition winding mechanism 8 are arranged in sequence along the conveying direction of the electrode strip, wherein the roller brush dust removal mechanism 6, the electrode cutting mechanism 7 and the turret transposition winding mechanism 8 can be provided with two upper and lower groups, so that two material strip winding paths can be formed after the electrode strip is slit, the vibration dust removal mechanism 9 can be arranged between the roller brush dust removal mechanism 6 and the electrode cutting mechanism 7 of one or two material strip winding paths, the belt pressing platform mechanism 2 is installed in the middle of the deviation correction mechanism 1, and the edge material collection mechanism 5 is provided with two groups and is respectively located below the discharge side of the slitting mechanism 4.

[0035] The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0036] like Figure 3As shown, the correcting mechanism 1 may include a correcting base plate 11, a correcting adjustment plate 12, a correcting adjustment device 13, a correcting roller 14 and a correcting roller bracket 15. The correcting adjustment device 13 is provided with four groups and is respectively connected between the correcting base plate 11 and the correcting adjustment plate 12. Every two groups of correcting adjustment devices 13 are respectively arranged in an eight-shaped shape. Each group of correcting adjustment devices 13 may include a correcting adjustment column 131, an adjustment column mounting seat 132 and a bearing seat 133. The two ends of the correcting adjustment column 131 are respectively mounted on the correcting base plate 11 through the adjustment column mounting seat 132. The bearing seat 133 is movably mounted on the correcting adjustment column 131. The top of the bearing seat 133 is connected to the correcting adjustment plate 12. Two correcting rollers 14 are provided and are parallel to each other. Each correcting roller 14 is respectively mounted on the correcting adjustment plate 12 through the correcting roller brackets 15 at both ends. The deviation correction adjustment plate 12 can be displaced relative to the deviation correction base plate 11 under the adjustment of the deviation correction adjustment device 13 .

[0037] like Figure 4 As shown, the belt pressing platform mechanism 2 may include a belt pressing platform 21, a belt pressing rod 22, a belt pressing rod lifting drive device 23 and a drawer-type belt pressing platform dust box 24, wherein two belt pressing rods 22 are provided and arranged in parallel above both sides of the belt pressing platform 21, the belt pressing rod lifting drive device 23 is installed on the belt pressing platform 21, the belt pressing rod lifting drive device 23 is respectively connected to the two belt pressing rods 22 by transmission and can drive them to move up and down, the belt pressing platform dust box 24 is installed at the bottom of the belt pressing platform 21, and a dust inlet 211 connected to the belt pressing platform dust box 24 is provided on the belt pressing platform 21. Among them, the belt pressing rod lifting drive device 23 can be set as a cylinder.

[0038] When the equipment is running, the belt pressing rod lifting drive device lifts the belt pressing rod, and the pole piece material belt passes between the table top of the belt pressing platform and the belt pressing rod; when the equipment stops running, the belt pressing rod is pressed down to fix the pole piece material belt. At this time, the operator can use the table top groove to easily break the pole piece belt, and the small amount of dust generated falls into the dust collecting box of the belt pressing platform.

[0039] like Figure 5 As shown, the traction roller mechanism 3 may include a traction roller 31, a traction roller driving device, a traction roller 33, a roller swing seat 34, and a roller swing driving device 35. The traction roller driving device is connected to the traction roller 31 and drives the traction roller 31 to rotate. The traction roller 33 is movably installed on one side of the traction roller 31 through the roller swing seat 34. The roller swing driving device 35 is connected to the roller swing seat 34 and can drive the traction roller 33 to abut against the traction roller 31. The traction roller driving device may be configured as a motor + belt transmission assembly, and the roller swing driving device may be configured as a cylinder.

[0040] like Figure 6As shown, the slitting mechanism 4 may include a slitting knife holder film group 41 and a knife holder fixing device 42, the slitting knife holder film group 41 is mounted on the knife holder fixing device 42, and a slitting knife 411 is provided on the slitting knife holder film group 41. The slitting knife 411 can slit the pole piece strip into a plurality of pole piece strips with small widths.

[0041] like Figure 7 As shown, the tool holder fixing device 42 may include a slitting tool holder film fixing base plate 421, a slitting tool holder film group positioning block 422, a slitting tool holder film group clamping cylinder 423 and a lifting and disengaging cylinder 425. The tool holder fixing device 42 may fix the slitting tool holder film group and also facilitate the maintenance and replacement of the slitting tool holder film group.

[0042] like Figure 8 As shown, the edge material collection mechanism 5 may include a winding roller mounting seat 51, an edge material winding roller 52, an edge material winding roller driving device 53, an edge material pressure roller 54 and an edge material pressure roller translation device 55. The edge material winding roller 52 is rotatably mounted on the winding roller mounting seat 51. The edge material winding roller driving device 53 is mounted on the winding roller mounting seat 51 and is in transmission connection with the edge material winding roller 52. The edge material winding roller driving device 53 can drive the edge material winding roller 52 to rotate. The edge material pressure roller 54 is arranged parallel to one side of the edge material winding roller 52. The edge material pressure roller translation device 55 is mounted on the winding roller mounting seat 51 and is in transmission connection with the edge material pressure roller 54. The edge material pressure roller translation device 55 can drive the edge material pressure roller 54 to approach or move away from the edge material winding roller 52. Among them, the edge material winding roller driving device 53 can be set as a motor, and the edge material pressure roller translation device 55 can be set as a cylinder.

[0043] like Fig. 9 and Fig.10 As shown, the roller brush dust removal mechanism 6 may include a roller brush dust removal box 61, a roller brush dust removal brush 62, a brush rotation drive device 63, a brush translation drive device 64 and a dust suction pipe 65. The roller brush dust removal boxes 61 are provided with two and are parallel to each other. The inner sides of the two roller brush dust removal boxes 61 are respectively provided with openings. A gap for the pole piece to pass through is formed between the two roller brush dust removal boxes 61. The roller brush dust removal brush 62 is installed inside the two roller brush dust removal boxes 61. The brush rotation drive device 63 is respectively connected to the two roller brush dust removal brushes 62 and can drive them to rotate. The brush translation drive device 64 is respectively connected to the two roller brush dust removal boxes 61. The brush translation drive device 64 can drive the two roller brush dust removal boxes 61 to move closer to each other or away from each other. The dust suction pipe 65 is installed at the bottom of the two roller brush dust removal boxes 61 and is connected to the inside of the roller brush dust removal boxes 61. Among them, the brush rotation drive device 63 can be set as a motor, and the brush translation drive device 64 can be set as a cylinder.

[0044] When using the roller brush for dust removal, the brush translation drive device can drive the left and right roller brush dust removal boxes to close, and the two roller brush dust removal brushes are used to brush powder on the pole piece material strip. When powder brushing is not needed, the left and right roller brush dust removal boxes are retreated to leave enough space for the operator to work; at the same time, this mechanism can be pulled out for cleaning.

[0045] like Fig.11 and Fig.12 As shown, the vibration dust removal mechanism 9 is located between the roller brush dust removal mechanism 6 and the pole piece cutting mechanism 7. The vibration dust removal mechanism 9 may include a dust removal side machine base 91, a vibrator 92, a dust removal guide roller 93, a vibration dust removal upper brush 94, a vibration dust removal lower brush 95, an air knife 96, a vibration dust collection box 97 and a shield 98. Two dust removal guide rollers 93 are provided and are installed in parallel between two dust removal side machine bases 91. The vibrator 92 is installed on the two dust removal side machine bases 91. At the bottom, the vibrating dust removal upper brush 94 and the vibrating dust removal lower brush 95 are both located between the two dust removal guide rollers 93, the vibrating dust removal upper brush 94 is located between the upper parts of two adjacent vibrating dust removal lower brushes 95, the wind knives 96 are respectively located above the two dust removal guide rollers 93, the vibrating dust collection box 97 is located between the lower parts of the two dust removal guide rollers 93, and the protective cover 98 is located between the upper parts of the two dust removal guide rollers 93 and covers the upper vibrating dust removal brush 94.

[0046] After the pole piece strip is cut, powder will accumulate at the incision. The vibration dust removal mechanism is mainly designed for the powder accumulation at the incision. When the cut pole piece strip passes through the vibration dust removal mechanism, the pole piece strip is always in a taut state under the support of the front and rear tension. The vibrator generates high-frequency vibration, which drives the dust removal guide roller fixed on the vibrator and the pole piece strip stretched on the dust removal guide roller to vibrate together, loosening or vibrating off the dust adhering to the pole piece incision, and then the dust loosened or vibrated off on the pole piece is brushed off to the vibration dust collection box by the vibration dust removal upper brush and the vibration dust removal lower brush, and the dust is sucked away to the storage box through the negative pressure source. The wind knives on both sides of the mechanism are ventilated to form wind curtains on both sides to prevent dust from overflowing.

[0047] like Fig.13 and Fig.14As shown, the pole piece cutting mechanism 7 may include a belt holding roller 71, a belt holding roller turning seat 72, a belt holding roller turning drive device 73, a cutter 74, a cutter rotating seat 75 and a cutter rotating drive device 76. The belt holding roller 71 is rotatably mounted on the belt holding roller turning seat 72. The belt holding roller turning drive device 73 is connected to the belt holding roller turning seat 72 and can drive it to turn up and down. The cutter rotating drive device 76 is mounted on both sides of the belt holding roller turning seat 72. The cutter rotating drive device 76 is connected to the cutter rotating seat 75 and can drive it to turn up and down. The cutter 74 is mounted on the cutter rotating seat 75 and is located at the discharge side of the belt holding roller 71. Among them, the belt holding roller turning drive device 73 can be set as a motor + reducer, and the cutter rotating drive device can be set as a cylinder.

[0048] When it is necessary to cut the pole piece material strip, the belt holding roller flipping drive device provides power to rotate the belt holding roller, so that the pole piece material strip is tightly pressed between the belt holding roller and the slip shaft of the turret transposition and winding mechanism to fix its position. At the same time, the cutter rotation drive device drives the cutter to flip upward, and the pole piece material strip is cut under the action of the tension of the pole piece material strip.

[0049] like Fig.15 and Fig.16 As shown, the turret transposition and winding mechanism 8 may include a rotating disk 81, a slip shaft 82, a roll-changing rotating main shaft 83, a roll-changing rotating driving device 84, a combination gear 85 and a winding driving device 86. The rotating disk 81 is installed on the roll-changing rotating main shaft 83, one end of the roll-changing rotating main shaft 83 is connected to the output shaft of the roll-changing rotating driving device 84, two slip shafts 82 are provided and are parallel to each other, one end of the two slip shafts 82 are respectively rotatably connected to the rotating disk 81, the roll-changing rotating driving device 84 can drive the roll-changing rotating main shaft 83, the rotating disk 81 and the two slip shafts 82 to rotate, the combination gear 85 is installed on the roll-changing rotating main shaft 83, the winding driving device 86 is connected to the combination gear 85 through a first gear chain assembly 87, one end of the two slip shafts 82 are respectively connected to the combination gear 85 through a second gear chain assembly 88, and the winding driving device 86 can drive the slip shaft 82 to rotate relative to the rotating disk 81. Among them, the roll-changing rotation drive device can be set as a motor + reducer, and the winding drive device can be set as a motor.

[0050] When the winding diameter of the first slip shaft reaches the set requirement, the reel-changing rotary drive device outputs power to rotate the rotary disk 180° (the positions of the two slip shafts are switched). The belt pressing roller 71 of the pole piece cutting mechanism 7 presses the second slip shaft and cuts off the pole piece strip between the first slip shaft and the second slip shaft, so that the second slip shaft can be smoothly wound up and the cutter can be retracted. At this time, the pole piece strip that has been wound up on the first slip shaft can be unwound without stopping the equipment.

[0051] It should be noted here that in order to enable the pole piece material strip between two adjacent mechanisms to be transported along a specified path, at least one belt guide roller 10 may be provided between the deviation correction mechanism 1 and the traction roller mechanism 3, between the traction roller mechanism 3 and the slitting mechanism 4, between the slitting mechanism 4 and the roller brush dust removal mechanism 6, between the roller brush dust removal mechanism 6 and the vibration dust removal mechanism 9, between the vibration dust removal mechanism 9 and the pole piece cutting mechanism 7, and between the roller brush dust removal mechanism 6 and the pole piece cutting mechanism 7.

[0052] During operation, the operator can connect the rolled positive / negative electrode sheet material strips to the deviation correction device and the tape connection platform, and use power traction to send the electrode sheet material strips to the slitting knife group arranged according to the process specifications for slitting. After passing through the dust removal system, the upper and lower turret transposition and rewinding mechanisms will collect the divided electrode sheets into rolls, and the edge materials on both sides will be collected by the edge material collection mechanism.

[0053] To sum up, the structural design of the present invention is reasonable, and can complete the automatic functions of automatic deviation correction, automatic traction, automatic slitting, automatic edge collection, automatic dust removal, automatic strip cutting, automatic position change and winding of the pole piece material strip. The turret position change and winding mechanism adopts a turret design, and can switch different winding positions to wind the material strip without stopping the equipment. In addition, the present invention can ensure the smooth running of the pole piece, thereby ensuring the stability of the pole piece slitting, and various process indicators such as burrs and straightness can meet high standards.

[0054] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A large lithium battery pole piece continuous slitting machine, Features: It includes a correction mechanism for correcting the deviation of the pole piece material strip, a belt pressing platform mechanism for pressing the pole piece material strip, a traction pressure roller mechanism for providing traction power to the pole piece material strip, a slitting mechanism for slitting the pole piece material strip, a side material collection mechanism for winding up the excess side materials after slitting, a roller brush dust removal mechanism for roller brush dust removal of the pole piece material strip after slitting, a pole piece cutting mechanism for cutting the pole piece material strip when each winding position of the turret transposition winding mechanism has finished winding up the pole piece material strip, and a turret transposition winding mechanism for switching different winding positions to wind up the pole piece material strip without stopping the machine. The mechanism comprises: the deviation correcting mechanism, the traction roller mechanism, the slitting mechanism, the roller brush dust removal mechanism, the pole piece cutting mechanism and the turret transposition and winding mechanism are arranged in sequence along the conveying direction of the pole piece; at least one belt guide roller is provided between the deviation correcting mechanism and the traction roller mechanism, between the traction roller mechanism and the slitting mechanism, between the slitting mechanism and the roller brush dust removal mechanism, and between the roller brush dust removal mechanism and the pole piece cutting mechanism; the belt pressing platform mechanism is installed in the middle of the deviation correcting mechanism; the edge material collecting mechanism is provided with two groups and are respectively located below the discharge side of the slitting mechanism; the turret transposition and winding mechanism is provided with at least two winding positions.

2. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The deflection correction mechanism includes a deflection correction base plate, a deflection correction adjustment plate, a deflection correction adjustment device, a deflection correction roller and a deflection correction roller bracket. The deflection correction adjustment device is provided with four groups and is respectively connected between the deflection correction base plate and the deflection correction adjustment plate. Every two groups of deflection correction adjustment devices are respectively arranged in an eight-shaped shape. Each group of deflection correction adjustment devices includes a deflection correction adjustment column, an adjustment column mounting seat and a bearing seat. The two ends of the deflection correction adjustment column are respectively mounted on the deflection correction base plate through the adjustment column mounting seats. The bearing seat is movably mounted on the deflection correction adjustment column. The top of the bearing seat is connected to the deflection correction adjustment plate. Two deflection correction rollers are provided and are parallel to each other. Each deflection correction roller is respectively mounted on the deflection correction adjustment plate through the deflection correction roller brackets at both ends.

3. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The belt pressing platform mechanism includes a belt pressing platform, a belt pressing rod, a belt pressing rod lifting drive device and a belt pressing platform dust collecting box. The belt pressing rods are provided with two and are arranged in parallel above both sides of the belt pressing platform. The belt pressing rod lifting drive device is installed on the belt pressing platform. The belt pressing rod lifting drive device is respectively connected to the two belt pressing rods in a transmission manner and can drive them to move up and down. The belt pressing platform dust collecting box is installed on the bottom of the belt pressing platform. A dust inlet connected to the belt pressing platform dust collecting box is opened on the belt pressing platform.

4. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The traction roller mechanism includes a traction roller, a traction roller driving device, a traction roller, a roller swing seat, and a roller swing driving device. The traction roller driving device is connected to the traction roller and drives the traction roller to rotate. The traction roller is movably installed on one side of the traction roller through the roller swing seat. The roller swing driving device is connected to the roller swing seat. The roller swing driving device can drive the traction roller to rest against the traction roller.

5. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The slitting mechanism comprises a slitting knife holder film group and a knife holder fixing device, the slitting knife holder film group is installed on the knife holder fixing device, and a slitting knife is arranged on the slitting knife holder film group.

6. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The edge material collecting mechanism includes a winding roller mounting seat, an edge material winding roller, an edge material winding roller driving device, an edge material pressure roller and an edge material pressure roller translation device. The edge material winding roller is rotatably mounted on the winding roller mounting seat, the edge material winding roller driving device is mounted on the winding roller mounting seat and is transmission connected to the edge material winding roller, the edge material winding roller driving device can drive the edge material winding roller to rotate, the edge material pressure roller is arranged parallel to one side of the edge material winding roller, the edge material pressure roller translation device is mounted on the winding roller mounting seat and is transmission connected to the edge material pressure roller, and the edge material pressure roller translation device can drive the edge material pressure roller to approach or move away from the edge material winding roller.

7. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The roller brush dust removal mechanism includes a roller brush dust removal box, a roller brush dust removal brush, a brush rotation drive device, a brush translation drive device and a dust suction pipe, the roller brush dust removal boxes are provided with two and are parallel to each other, the inner sides of the two roller brush dust removal boxes are respectively provided with openings, a gap for the pole piece to pass through is formed between the two roller brush dust removal boxes, the roller brush dust removal brush is installed inside the two roller brush dust removal boxes, the brush rotation drive device is respectively connected to the two roller brush dust removal brushes and can drive them to rotate, the brush translation drive device is respectively connected to the two roller brush dust removal boxes, the brush translation drive device can drive the two roller brush dust removal boxes to move closer to or away from each other, and the dust suction pipe is installed at the bottom of the two roller brush dust removal boxes and is connected to the inside of the roller brush dust removal boxes.

8. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The pole piece cutting mechanism comprises a belt holding roller, a belt holding roller turning seat, a belt holding roller turning drive device, a cutter, a cutter rotating seat and a cutter rotating drive device. The belt holding roller is rotatably mounted on the belt holding roller turning seat. The belt holding roller turning drive device is transmission-connected to the belt holding roller turning seat and can drive it to turn up and down. The cutter rotating drive device is mounted on both sides of the belt holding roller turning seat. The cutter rotating drive device is transmission-connected to the cutter rotating seat and can drive it to turn up and down. The cutter is mounted on the cutter rotating seat and is located on the discharge side of the belt holding roller.

9. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The transmission gear of the present invention is connected with the transmission gear of the present invention respectively through the first gear chain assembly and the second gear chain assembly to drive the transmission gear of the present invention to the transmission gear of the present invention.

10. A large lithium battery pole piece continuous slitting machine according to claim 1, Features: The invention also includes a vibration dust removal mechanism for vibrating and dusting the pole piece material strip, wherein the vibration dust removal mechanism is located between the roller brush dust removal mechanism and the pole piece cutting mechanism, and the vibration dust removal mechanism includes a dust removal side base, a vibrator, a dust removal guide roller, a vibration dust removal upper brush, a vibration dust removal lower brush, an air knife, a vibration dust collection box and a protective cover, wherein two dust removal guide rollers are provided and are installed in parallel between two dust removal side bases, the vibrator is installed at the bottom of the two dust removal side bases, the vibration dust removal upper brush and the vibration dust removal lower brush are both located between the two dust removal guide rollers, the vibration dust removal upper brush is located between the upper parts of two adjacent vibration dust removal lower brushes, the air knives are respectively located above the two dust removal guide rollers, the vibration dust collection box is located between the lower parts of the two dust removal guide rollers, and the protective cover is located between the upper parts of the two dust removal guide rollers and is covered above the vibration dust removal upper brush.

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