Laser etching equipment for pole piece

Abstract

The utility model provides laser etching equipment for a pole piece, which comprises an unwinding part and an etching part, and the etching part is positioned at the downstream of the unwinding part and is used for etching a pole piece material belt from the unwinding part; the etching part comprises at least two etching units corresponding to the two side surfaces of the pole piece material belt, the etching part further comprises a deviation rectifying assembly, the etching units used for processing the first side surface of the pole piece material belt are defined as a first etching group, and the etching units used for processing the second side surface of the pole piece material belt are defined as a second etching group; the upstream of the first etching group and the upstream of the second etching group are respectively provided with a deviation rectifying assembly. The two side faces of the pole piece material belt can be subjected to laser etching processing at the same time, meanwhile, before the pole piece material belt enters the first etching set and the second etching set, deviation correction is conducted on the pole piece material belt through the deviation correction assembly, the conveying speed of the pole piece material belt can be improved, and the etching efficiency of the pole piece material belt is improved on the whole.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a kind of laser etching equipment for pole piece. BACKGROUND

[0002] In order to improve the charge-discharge performance of battery, the prior art is mostly through the way of grooving or punching on the surface of pole piece to increase the contact area of pole piece and electrolyte, so as to effectively improve the embedding and extraction efficiency of lithium ion on the pole piece, and thus improve the charge-discharge performance of battery. Laser etching is mostly used in production to groove or punch on the surface of pole piece. The existing laser etching equipment for pole piece has the problem of low processing efficiency, especially for wide pole piece material belt, the material belt is easy to deviate when the running speed is increased, which affects the processing efficiency. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of laser etching equipment for pole piece, which can realize the rapid and high-quality processing of pole piece material belt.

[0004] The embodiments of the utility model are realized by the following technical solutions:

[0005] A kind of laser etching equipment for pole piece, comprising: rack;Unwinding part, it is set to the rack, for unwinding pole piece material belt;Etching part, it is set to the rack, downstream of the unwinding part, for etching the pole piece material belt from the unwinding part;Winding part, it is set to the rack, downstream of the etching part, for winding the pole piece material belt from the etching part;Wherein, the etching part includes at least two etching units, corresponding to the two side surfaces of pole piece material belt, the etching part also includes deviation correction component, define the etching unit of the first side surface for processing pole piece material belt as first etching group, the etching unit of the second side surface for processing pole piece material belt as second etching group, the deviation correction component is set to the upstream of the first etching group and second etching group.

[0006] According to a preferred embodiment, the etching unit includes a corresponding etching assembly and a running belt assembly, the running belt assembly includes two tensioning inner rollers and two tensioning outer rollers, the two tensioning inner rollers are between the two tensioning outer rollers, the pole piece material belt passes through the gap between the tensioning outer roller and the tensioning inner roller adjacent thereto, and is across between the two tensioning inner rollers, and the focal point of the laser beam of the etching assembly corresponds to the area between the two tensioning inner rollers.

[0007] According to a preferred embodiment, the pole piece material belt region across between the two tensioning inner rollers is defined as an etching region, and the etching region is between the tensioning inner roller and the etching assembly.

[0008] According to a preferred embodiment, the tape running assembly further comprises a dust removal air knife and a dust removal box, the dust removal air knife is upstream of the dust removal box in the conveying direction of the pole piece tape, the air outlet of the dust removal air knife is towards the etching area, and the air inlet of the dust removal box is towards the etching area.

[0009] According to a preferred embodiment, the tape running assembly further comprises an inner roller frame and an outer roller frame, the tensioning inner roller is arranged on the inner roller frame, and the outer roller frame is adjustably provided with a closing plate, the tensioning outer roller is arranged on the closing plate, the closing plate is in a rectangular shape, the length direction of the closing plate is parallel to the length direction of the tensioning outer roller, the dust removal air knife is on one side of the closing plate in the width direction, the dust removal box is on the other side of the closing plate in the width direction, the dust removal air knife is between the closing plate and the tensioning outer roller adjacent to the dust removal air knife, and the dust removal box is between the closing plate and the tensioning outer roller adjacent to the dust removal box; the closing plate is provided with a light transmission hole for passing through the laser beam.

[0010] According to a preferred embodiment, the tape running assembly further comprises an inner roller frame and an outer roller frame, the tensioning inner roller is arranged on the inner roller frame, and the tensioning outer roller is arranged on the outer roller frame, and the tensioning inner roller is adjustably arranged and / or the tensioning outer roller is adjustably arranged.

[0011] According to a preferred embodiment, the tensioning inner roller is parallel to the tensioning outer roller.

[0012] According to a preferred embodiment, the etching assembly comprises a frame plate and a galvanometer assembly, and the galvanometer assembly is adjustably arranged on the frame plate.

[0013] According to a preferred embodiment, the galvanometer assembly comprises a second base plate, a first adapter plate, a second adapter plate and a galvanometer head, the second base plate is movable along the width direction of the pole piece tape, the first adapter plate is slidingly mounted on the second base plate, the first adapter plate is movable relative to the second base plate to approach or move away from the etching area, the second adapter plate is slidingly mounted on the first adapter plate, and the galvanometer head is mounted on the second adapter plate; the direction in which the second adapter plate slides relative to the first adapter plate is defined as a first direction, the direction in which the first adapter plate slides relative to the second base plate is defined as a second direction, and the movement direction of the second base plate is defined as a third direction, the first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0014] According to a preferred embodiment, the polar sheet laser etching device further comprises a detection unit between the etching unit and the winding unit; the detection unit comprises two second buffer mechanisms and a detection assembly arranged between the two second buffer mechanisms; the detection assembly comprises a fixed frame arranged on a rack, at least one detection head is arranged on the fixed frame and can move along the width direction of the polar sheet material belt; the detection head comprises an adapter frame, a third adapter plate and a detector, wherein the adapter frame is movably arranged on the fixed frame, the third adapter plate is fixedly installed on the detector, and the third adapter plate is adjustably assembled with the adapter frame.

[0015] The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0016] The utility model discloses can carry out laser etching processing to two side surfaces of polar sheet material belt simultaneously, and before polar sheet material belt enters first etching group and second etching group, the polar sheet material belt being processed is rectified by rectifying component, thereby guaranteeing that polar sheet material belt enters etching unit area and is etched with stable and accurate posture, which is favorable for improving the conveying speed of polar sheet material belt and improving the etching efficiency of polar sheet material belt as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled person in the art, other related drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 The utility model discloses a polar sheet laser etching device's three-dimensional structure schematic diagram is provided for the embodiment of the utility model;

[0019] Figure 2 The utility model discloses the structure schematic diagram of etching unit is provided for the embodiment of the utility model;

[0020] Figure 3 The utility model discloses a first etching group's three-dimensional structure schematic diagram is provided for the embodiment of the utility model;

[0021] Figure 4 The utility model discloses a first three-dimensional structure schematic diagram of walking belt subassembly is provided for the embodiment of the utility model;

[0022] Figure 5 The utility model discloses a second three-dimensional structure schematic diagram of walking belt subassembly is provided for the embodiment of the utility model;

[0023] Figure 6The embodiment of the utility model provides an assembly structure schematic diagram of etching assembly and tape running assembly;

[0024] Figure 7 The embodiment of the utility model provides an assembly structure schematic diagram of four galvanometer assemblies;

[0025] Figure 8 The embodiment of the utility model provides a three-dimensional structure schematic diagram of first buffer mechanism;

[0026] Figure 9 The embodiment of the utility model provides a three-dimensional structure schematic diagram of detection part;

[0027] Figure 10 The embodiment of the utility model provides a tape running schematic diagram of detection part;

[0028] Figure 11 The embodiment of the utility model provides a three-dimensional structure schematic diagram of second buffer mechanism;

[0029] Figure 12 The embodiment of the utility model provides an assembly structure schematic diagram of detection head and fixing frame.

[0030] Icon: 01, pole piece material tape, 011, first side, 012, second side, 013, etching area, 1, rack, 2, unwinding part, 3, etching part, 301, first etching group, 302, second etching group, 303, first longitudinal plane, 304, second longitudinal plane, 305, first buffer mechanism, 3051, first inner vertical plate, 3052, first outer vertical plate, 3053, first fixed rod, 3054, first transmission shaft, 3055, first roller, 3056, first movable roller, 3057, third seat plate, 31, etching assembly, 311, frame plate, 312, galvanometer assembly, 3121, galvanometer head, 3122, first adapter plate, 3123, second adapter plate, 3124, second seat plate, 32, tape running assembly, 321, tensioning inner roller, 322, tensioning outer roller, 323, dust removal air knife, 324, dust extraction box, 325, inner roller frame, 326, outer roller frame, 3261, first seat plate, 327, closed plate, 3271, light transmission hole, 3272, extension plate, 328, dust removal space, 4, detection part, 41, second buffer mechanism, 410, second inner vertical plate, 411, second outer vertical plate, 412, second fixed rod, 413, second transmission shaft, 414, second movable roller, 415, second roller, 42, detection assembly, 421, fixing frame, 422, detection head, 4221, adapter frame, 42211, circular arc adjusting hole, 4222, third adapter plate, 4223, detector, 423, detection roller, 5, labeling part, 6, winding part, X, first direction, Y, second direction, Z, third direction. DETAILED DESCRIPTION

[0031] In order to better understand and implement, the technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model.

[0032] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are the directions or position relations shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0034] Please refer to Figures 1 to 12 A kind of laser etching equipment for pole piece, including rack 1 and setting in rack 1 and being sequentially set along the direction of pole piece material belt 01 conveying, unwinding part 2, etching part 3, detection part 4, label part 5 and winding part 6, unwinding part 2 is used to unwind pole piece material belt 01;Etching part 3 is used to etch pole piece material belt 01 from unwinding part 2;Detection part 4 is used to detect the processing quality of pole piece material belt 01 from etching part 3;Label part 5 is used to buffer label for pole piece material belt 01 from detection part 4 part;Winding part 6 is used to wind pole piece material belt 01 from etching part 3;Wherein, etching part 3 includes at least two etching units, corresponding two side surfaces of pole piece material belt 01, etching part 3 also includes deviation rectifying assembly, define the etching unit for processing the first side surface 011 of pole piece material belt 01 as first etching group 301, the etching unit for processing the second side surface 012 of pole piece material belt 01 as second etching group 302, deviation rectifying assembly is set in the upstream of first etching group 301 and second etching group 302. So set, can simultaneously laser etching processing of two side surfaces of pole piece material belt 01, simultaneously, pole piece material belt 01 enters first etching group 301 and second etching group 302, and is all rectified to the pole piece material belt 01 being processed by deviation rectifying assembly, to this, can guarantee that pole piece material belt 01 enters etching unit area with stable and accurate attitude and is etched and processed, on this basis, it is favorable to improve the conveying speed of pole piece material belt 01, overall, the etching efficiency of pole piece material belt 01 is improved.

[0035] In the embodiment, the deviation rectifying assembly can be any existing material belt deviation rectifying mechanism.

[0036] In this embodiment, as shown in Figure 1 The rack 1 is L-shaped as a whole, the rollers carrying the pole strip material belt 01 are arranged on the longitudinal side of the rack 1 and are parallel to the ground, that is, the rollers carrying the pole strip material belt 01 are arranged as a whole in a cantilevered manner, and some rollers are provided with a plate or other support structure at the cantilevered end to improve the stability of the mechanism. In this way, the equipment maintenance and the assembly of the pole strip material belt 01 are facilitated.

[0037] In this embodiment, the first etching group 301 and the second etching group 302 have the same structure, and the first etching group 301 will be taken as an example for description hereinafter.

[0038] Preferably, as shown in Figure 1 , Figure 2 and Figure 3 , the first etching group 301 includes two etching units arranged at intervals along the longitudinal direction. Correspondingly, the pole strip material belt 01 entering the area of the first etching group 301 travels along the longitudinal direction. In this way, the spatial layout of each etching unit in the first etching group 301 is facilitated, which can make the first etching group 301, that is, the pole laser etching device, more compact in structure and reduce the floor area occupied by the device.

[0039] In some embodiments, the etching unit can also be one or more, and the position and number of etching units can be reasonably arranged according to the actual production efficiency requirements. It can be understood that the more the number of etching units, the larger the area of the pole strip material belt 01 that can be etched by the first etching group 301 at the same time, which means that the more the number of etching units, the higher the production efficiency of the first etching group 301 or the pole laser etching device.

[0040] In another embodiment, the first etching group 301 and the second etching group 302 can also have different structures, mainly in the number of etching units, for example, the first etching group 301 includes two etching units, and the second etching group 302 includes three etching units.

[0041] As shown in Figure 3 , the etching unit includes a corresponding etching assembly 31 and a belt running assembly 32. The pole strip material belt 01 is inserted on the belt running assembly 32 and is limited by the belt running assembly 32, and the etching assembly 31 is located on one side of the belt running assembly 32 to generate a laser beam to etch the pole strip material belt 01 inserted on the belt running assembly 32. Specifically, as shown in Figure 4 , Figure 5 and Figure 6As shown, the tape running assembly 32 includes two tensioning inner rollers 321 and two tensioning outer rollers 322, the two tensioning inner rollers 321 are between the two tensioning outer rollers 322, the pole piece tape 01 passes through the gap between the tensioning outer rollers 322 and the tensioning inner rollers 321 adjacent thereto, and straddles between the two tensioning inner rollers 321, and the focal point of the laser beam of the etching assembly 31 corresponds to the region between the two tensioning inner rollers 321. In this embodiment, the two tensioning inner rollers 321 have a gap therebetween. The size of the gap is sufficient for the laser beam generated by the etching assembly 31 to pass through smoothly without irradiating the tensioning inner rollers 321. In this way, when the pole piece tape 01 is broken or pierced during the etching process, the laser beam can pass out through the gap between the two tensioning inner rollers 321 without ablation of the tensioning inner rollers 321, thereby ensuring the structural integrity of the tensioning inner rollers and improving the service life of the equipment.

[0042] Preferably, the central axes of the two tensioning outer rollers 322 are in the first longitudinal plane 303, and the central axes of the two tensioning inner rollers 321 are in the second longitudinal plane 304, the first longitudinal plane 303 is parallel to the second longitudinal plane 304, that is, the tensioning inner rollers 321 are parallel to the tensioning outer rollers 322. The size of the gap between the first longitudinal plane 303 and the second longitudinal plane 304 can adjust the size of the wrap angle of the pole piece tape 01 on the tensioning inner rollers 321.

[0043] The region of the pole piece tape 01 straddling between the two tensioning inner rollers 321 is defined as the etching region 013, and the etching region 013 is between the tensioning inner rollers 321 and the etching assembly 31. Figure 6 As shown, the etching region 013 is disposed close to and towards the etching assembly 31. The tensioning inner rollers 321 here are used to support the etching region 013, and cooperate with the tensioning outer rollers 322 to keep the etching region 013 in a tensioned state, so as to ensure that the etching region remains flat during the etching process, which is conducive to ensuring the consistency of the etching depth of the surface of the pole piece tape 01 and improving product quality.

[0044] Further, the tape running assembly 32 further includes a dust removal air knife 323 and a dust extraction box 324, in the conveying direction of the pole piece tape 01, the dust removal air knife 323 is upstream of the dust extraction box 324, the air outlet of the dust removal air knife 323 is towards the etching region 013, and the air inlet of the dust extraction box 324 is towards the etching region 013. During the etching process, the dust removal air knife 323 blows air to the etching region 013, and since the dust removal air knife 323 is upstream of the dust extraction box 324, the dust generated by the etching region 013 can be blown away from the etching region 013 by the air generated by the dust removal air knife 323, and the dust extraction box 324 downstream of the dust removal air knife 323 generates a negative pressure to collect the dust separated from the etching region 013, so as to avoid the dust from escaping.

[0045] Preferably, the angle between the direction of the gas flow generated by the air outlet of the dust removal air knife 323 and the conveying direction of the pole piece material belt 01 in the etching area 013 is an acute angle. In this way, the dust can be better blown towards the dust extraction box 324 downstream, improving the dust removal efficiency.

[0046] As shown in Figure 4 and Figure 5 , the walking belt assembly 32 further comprises an inner roller frame 325 and an outer roller frame 326. The tensioning inner roller 321 is arranged on the inner roller frame 325. The outer roller frame 326 is adjustably provided with a closing plate 327. The tensioning outer roller 322 is arranged on the closing plate 327 through an extension plate 3272. The closing plate 327 is in a rectangular shape. The length direction of the closing plate 327 is parallel to the length direction of the tensioning outer roller 322. The dust removal air knife 323 is located on one side of the width direction of the closing plate 327. The dust extraction box 324 is located on the other side of the width direction of the closing plate 327. The dust removal air knife 323 is located between the closing plate 327 and the tensioning outer roller 322 adjacent to the dust removal air knife 323. The dust extraction box 324 is located between the closing plate 327 and the tensioning outer roller 322 adjacent to the dust extraction box 324. The closing plate 327 is provided with a light transmission hole 3271 for passing through the laser beam. More specifically, as shown in Figure 6 , the closing plate 327, the dust removal air knife 323, the dust extraction box 324, the tensioning outer roller 322 and the pole piece material belt 01 together limit a relatively closed dust removal space 328. The etching area 013 is located in the dust removal space 328. Therefore, during the machining and dust removal process, the dust can be well limited in the dust removal space 328 and sucked by the negative pressure generated by the dust extraction box 324, effectively avoiding the problem of dust escaping.

[0047] As shown in Figure 5 , the outer roller frame 326 is slidably installed with a first seat plate 3261. The first seat plate 3261 can slide relative to the outer roller frame 326 to approach or move away from the inner roller frame 325. The closing plate 327 is installed on the first seat plate 3261. Both ends of the length direction of the closing plate 327 are equipped with extension plates 3272. The tensioning outer roller 322 is installed on the closing plate 327 through the extension plates 3272. The dust removal air knife 323 and the dust extraction box 324 are rotatably installed on the closing plate 327 through shafts. In this way, the angle of the dust removal air knife 323 and the dust extraction box 324 can be adjusted to better adapt to the specific dust removal environment.

[0048] Further, the first seat plate 3261 is slidably assembled with the outer roller frame 326 through a slide rail and slide block assembly. The outer roller frame 326 is provided with a gas cylinder acting on the first seat plate 3261 or the closing plate 327, so that the tensioning outer roller 322 can approach or move away from the tensioning inner roller 321. In this way, the tensioning degree of the pole piece material belt 01 and the etching area 013 can be adjusted.

[0049] In another embodiment, the inner tension roller 321 is mounted on the inner roller holder 325 in the same way as the outer tension roller 322 is mounted on the outer roller holder 326, i.e. the inner tension roller 321 is adjustably arranged on the inner roller holder 325. In another embodiment, the inner tension roller 321 is adjustably arranged on the inner roller holder 325, and the outer tension roller 322 is fixedly arranged on the outer roller holder 326. In this way, the relative position between the inner tension roller 321 and the outer tension roller 322 can be adjusted to adjust the tension of the pole piece tape 01 on the tape running assembly 32, and the distance between the inner tension roller 321 and the outer tension roller 322 can be adjusted to facilitate the maintenance of the device and the threading of the pole piece tape 01.

[0050] As shown in Figure 3 and Figure 7 , the etching assembly 31 comprises a holder plate 311 and a galvanometer assembly 312, which is adjustably arranged on the holder plate 311. Specifically, as shown in Figure 7 , in this embodiment, there are four galvanometer assemblies 312, which are adjustably mounted on the holder plate 311 by linear modules. The galvanometer assemblies 312 mounted on the holder plate 311 can move along the width direction of the pole piece tape 01 by the linear modules to produce etching marks on the pole piece tape 01. The four galvanometer assemblies 312 can effectively improve the processing efficiency.

[0051] Further, the galvanometer assembly 312 comprises a second seat plate 3124, a first adapter plate 3122, a second adapter plate 3123, and a galvanometer head 3121. The second seat plate 3124 is mounted on the linear module and is driven by the linear module to move along the width direction of the pole piece tape 01. The first adapter plate 3122 is slidably mounted on the second seat plate 3124 by a slide rail and slide block assembly, and can move relative to the second seat plate 3124 to approach or move away from the etching area 013. The second adapter plate 3123 is slidably mounted on the first adapter plate 3122 by a slide rail and slide block assembly, and the galvanometer head 3121 is mounted on the second adapter plate 3123. In this embodiment, the sliding direction of the second adapter plate 3123 relative to the first adapter plate 3122 is the first direction X, the sliding direction of the first adapter plate 3122 relative to the second seat plate 3124 is the second direction Y, and the movement direction of the second seat plate 3124 driven by the linear module is the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other in pairs. In this way, the spatial position of the focal point of the laser beam emitted by the galvanometer head 3121 can be adjusted to match the processing requirements of the etching area 013.

[0052] Further, the power source for the movement of the first adapter plate 3122 relative to the second seat plate 3124 can be a telescopic member such as a pneumatic cylinder mounted on the second seat plate 3124, or a lead screw rotatably mounted on the second seat plate 3124 and threadedly connected with the first adapter plate 3122. Correspondingly, the power source for the movement of the second adapter plate 3123 relative to the first adapter plate 3122 can be a telescopic member such as a pneumatic cylinder mounted on the first adapter plate 3122, or a lead screw rotatably mounted on the first adapter plate 3122 and threadedly connected with the second adapter plate 3123.

[0053] As shown in Figure 2 and Figure 8 , a first buffering mechanism 305 is arranged between the first etching group 301 and the second etching group 302, for adjusting the tension of the pole piece material belt 01 between the first etching group 301 and the second etching group 302. Specifically, as shown in Figure 7 , the first buffering mechanism 305 comprises a first inner vertical plate 3051 and a first outer vertical plate 3052, which are fixedly connected by a first fixed rod 3053, the first inner vertical plate 3051 is arranged on the rack 1, and a first movable roller 3056 and a first idle roller 3055 are arranged between the first inner vertical plate 3051 and the first outer vertical plate 3052, the pole piece material belt 01 output from the first etching group 301 passes the first idle roller 3055 and the first movable roller 3056, the first movable roller 3056 is parallel to the first idle roller 3055, and the first movable roller 3056 can be close to or away from the first idle roller 3055.

[0054] Further, two first transmission shafts 3054 are rotatably mounted between the first inner vertical plate 3051 and the first outer vertical plate 3052, the first movable roller 3056 is between the two first transmission shafts 3054, and the two first transmission shafts 3054 are drivingly connected by a synchronous belt. Further, the end of the first movable roller 3056 is slidingly connected to the first inner vertical plate 3051 and the first outer vertical plate 3052 through a third seat plate 3057, the third seat plate 3057 is at least partially fixed to the synchronous belt through the first outer vertical plate 3052 and the first inner vertical plate 3051. The first transmission shaft 3054 is driven to rotate by a motor, so as to drive the first movable roller 3056 to move relative to the first idle roller 3055, thereby adjusting the tension of the pole piece material belt 01. The third seat plate 3057 is slidingly connected to the first inner vertical plate 3051 and the first outer vertical plate 3052 by a sliding rail and sliding block assembly.

[0055] In this embodiment, the detection unit 4 includes two second buffer mechanisms 41 and a detection component 42 disposed between the two second buffer mechanisms 41. In use, the etched electrode strip 01 is tensioned at the first second buffer mechanism 41, then enters the detection component 42 area for detection, and is then tensioned again by the second second buffer mechanism 41 before proceeding to subsequent processes. This arrangement ensures that the electrode strip 01 is under tension during detection, preventing inaccurate results due to wrinkles or other phenomena. Simultaneously, the electrode strip 01 enters subsequent processes with appropriate tension after detection, guaranteeing the accuracy of subsequent processes.

[0056] The second buffer mechanism 41 includes a second inner vertical plate 410 and a second outer vertical plate 411, which are fixedly connected by a second fixing rod 412. The second inner vertical plate 410 is mounted on the frame 1. A second guide roller 415 and a second moving roller 414 are provided between the first inner plate and the second inner vertical plate 410. The second moving roller 414 can move closer to or further away from the second guide roller 415. Preferably, as shown in the figure... Figure 11 As shown, the second guide roller 415 is located below the second moving roller 414. There are three second guide rollers 415 and two second moving rollers 414. The electrode strip 01 is serpentinely wound between the second guide rollers 415 and the second moving rollers 414. Specifically, the second moving roller 414 is mounted on the second inner vertical plate 410 and the second outer vertical plate 411 via a fourth seat plate. The fourth seat plate is slidably connected to the second inner vertical plate 410 and the second outer vertical plate 411 via a slide rail slider assembly. Further, two second transmission shafts 413 are rotatably mounted between the second inner vertical plate 410 and the second outer vertical plate 411. The second moving roller 414 is located between the two second transmission shafts 413. The two second transmission shafts 413 are connected by a synchronous belt. The fourth seat plate is at least partially fixed to the synchronous belt so as to be driven by the synchronous belt, thereby allowing the second moving roller 414 to move closer to or further away from the second guide roller 415.

[0057] like Figure 12 As shown, a detection assembly 42 provided in one embodiment includes a mounting frame 421 disposed on a frame 1. A linear module is configured on the mounting frame 421, and at least one detection head 422 is disposed on the linear module and driven thereto to move along the width direction of the electrode strip 01. Specifically, the detection head 422 includes an adapter frame 4221, a third adapter plate 4222, and a detector 4223. The adapter frame 4221 is disposed on the linear module, and the third adapter plate 4222 is fixedly mounted on the detector 4223. The third adapter plate 4222 and the adapter frame 4221 are adjustablely assembled. The detector 4223 includes, but is not limited to, a 3D camera.

[0058] In some embodiments, the third adapter plate 4222 is rotationally connected with the adapter frame 4221, the adapter frame 4221 is provided with an arc adjustment hole 42211, the rotation center of the third adapter plate 4222 relative to the adapter frame 4221 is coaxial with the center of the arc adjustment hole 42211, and the third adapter plate 4222 is provided with a limiting pin (not shown in the figure) which is slidingly assembled in the arc adjustment hole 42211. In this way, the angle of the detector 4223 can be conveniently adjusted. In other embodiments, the adapter frame 4221 can be rotationally mounted on the linear module and driven to rotate by a motor provided on the linear module. It should be noted that the rotation axis of the adapter frame 4221 relative to the linear module is perpendicular to the rotation axis of the third adapter plate 4222 relative to the adapter frame 4221. In this way, the angle of the detector 4223 can be better adjusted.

[0059] As shown in Figure 10 The detection assembly 42 also includes a detection passing roller 423 provided on the rack 1, and the pole piece tape 01 is wound around the detection passing roller 423 to tension and flatten the first side surface 011 and the second side surface 012 of the pole piece tape 01, so as to better expose the notch to the detection angle of the detector 4223 for detection. Preferably, the fixing frame 421 is provided corresponding to the detection passing roller 423, and the detector 4223 is arranged towards the detection passing roller 423. Here, the number of detection assemblies 42 can be set according to the detection needs or efficiency, and is not specifically limited.

[0060] The labeling part 5 includes any existing labeling machine that can be applied to this environment, and the pole piece tape 01 is labeled according to the detection result and then wound by the winding part 6. The winding part 6 and the unwinding part 2 here can be any existing pole piece tape 01 winding and unwinding mechanism.

[0061] It should be noted that during the movement of the pole piece tape 01, a plurality of dust removal structures can be provided according to needs, including magnetic attraction and brush dust removal, which are prior art and will not be described here.

[0062] The technical means disclosed in the utility model scheme is not limited to the technical means disclosed in the above embodiments, but also includes technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A laser etching apparatus for electrodes, characterized in that, The application relates to a polar plate material strip etching device. The device comprises a rack, a unwinding part arranged on the rack and used for unwinding a polar plate material strip, an etching part arranged on the rack and downstream of the unwinding part and used for etching the polar plate material strip from the unwinding part, and a winding part arranged on the rack and downstream of the etching part and used for winding the polar plate material strip from the etching part. The etching part comprises at least two etching units corresponding to two sides of the polar plate material strip, and the etching part further comprises a deviation rectifying assembly, the etching unit for processing a first side of the polar plate material strip is defined as a first etching group, the etching unit for processing a second side of the polar plate material strip is defined as a second etching group, and the deviation rectifying assembly is arranged upstream of the first etching group and the second etching group. The etching unit comprises a corresponding etching assembly and a strip conveying assembly, the strip conveying assembly comprises two tensioning inner rollers and two tensioning outer rollers, the two tensioning inner rollers are between the two tensioning outer rollers, the polar plate material strip passes through the gap between the tensioning outer roller and the tensioning inner roller adjacent to the tensioning outer roller and is across the two tensioning inner rollers, and the focal point of the laser beam of the etching assembly corresponds to the area between the two tensioning inner rollers. The area of the polar plate material strip across the two tensioning inner rollers is defined as an etching area, and the etching area is between the tensioning inner rollers and the etching assembly. The strip conveying assembly further comprises a dust removal air knife and a dust removal box, the dust removal air knife is upstream of the dust removal box in the conveying direction of the polar plate material strip, the air outlet of the dust removal air knife faces the etching area, and the air inlet of the dust removal box faces the etching area.

2. The laser etching apparatus for a pole piece according to claim 1, wherein The strip conveying assembly further comprises an inner roller frame and an outer roller frame, the tensioning inner roller is arranged on the inner roller frame, a closing plate is adjustably arranged on the outer roller frame, and the tensioning outer roller is arranged on the closing plate.

3. The laser etching apparatus for a pole piece according to claim 2, wherein The closing plate is in a rectangular shape, the length direction of the closing plate is parallel to the length direction of the tensioning outer roller, the dust removal air knife is on one side of the width direction of the closing plate, the dust removal box is on the other side of the width direction of the closing plate, the dust removal air knife is between the closing plate and the tensioning outer roller adjacent to the dust removal air knife, and the dust removal box is between the closing plate and the tensioning outer roller adjacent to the dust removal box.

4. The laser etching apparatus for a pole piece according to claim 3, wherein A light transmission hole for passing through a laser beam is arranged on the closing plate.

5. The laser etching apparatus for a pole piece according to claim 4, wherein The strip conveying assembly further comprises an inner roller frame and an outer roller frame, the tensioning inner roller is arranged on the inner roller frame, the tensioning outer roller is arranged on the outer roller frame, and the tensioning inner roller is adjustably arranged and / or the tensioning outer roller is adjustably arranged. The tensioning inner roller is parallel to the tensioning outer roller. The etching assembly comprises a frame plate and a galvanometer assembly, and the galvanometer assembly is adjustably arranged on the frame plate.

6. The laser etching apparatus for a pole piece according to claim 2, wherein The galvanometer assembly comprises a second seat plate, a first adapter plate, a second adapter plate and a galvanometer head, the second seat plate can move along the width direction of the polar plate material strip, the first adapter plate is slidingly installed on the second seat plate, the first adapter plate can move relative to the second seat plate to approach or move away from the etching area, the second adapter plate is slidingly installed on the first adapter plate, and the galvanometer head is installed on the second adapter plate.

7. The laser etching apparatus for a pole piece according to claim 3, wherein ​ 8. The laser etching apparatus for a pole piece according to claim 2, wherein ​ 9. The laser etching apparatus for a pole piece according to claim 8, wherein ​ The direction of the second adapter plate sliding relative to the first adapter plate is defined as a first direction, the direction of the first adapter plate sliding relative to the second base plate is defined as a second direction, and the direction of movement of the second base plate is defined as a third direction, the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

10. The laser etching apparatus for a pole piece according to claim 1, wherein The pole piece laser etching device further comprises a detection part between the etching part and the winding part; The detection part comprises two second buffering mechanisms and a detection assembly arranged between the two second buffering mechanisms; the detection assembly comprises a fixing frame arranged on a rack, and at least one detection head arranged on the fixing frame and capable of moving along the width direction of the pole piece material belt; The detection head comprises an adapter frame, a third adapter plate, and a detector, wherein the adapter frame is movably arranged on the fixing frame, the third adapter plate is fixedly installed on the detector, and the third adapter plate is adjustably assembled with the adapter frame.

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