Online burr detection and ultrasonic dust removal laser die-cutting machine

Abstract

The invention discloses a laser die-cutting machine with online burr detection and ultrasonic dust removal functions. The device sequentially comprises an unwinding assembly, a flattening roller assembly, a tape connecting platform assembly, a tension detection assembly, a tension swing roller assembly, a reinforcing rib mechanism, a die-cutting front and back CCD defect detection assembly, a die-cutting front advancing deviation correction assembly, a die-cutting front advancing deviation correction detection assembly, a laser length measurement assembly, a laser assembly, a tab air knife dust removal assembly and an A face CCD defect detection assembly from unwinding to winding. The device comprises a main driving assembly, a tab CCD size detection assembly, a before-slitting advancing deviation correction assembly, a before-slitting advancing deviation correction detection assembly, a slitting assembly, a B-face CCD flaw detection assembly, a brush dust removal assembly, an ultrasonic edge washing and dust removal assembly, a burr detection assembly, an ultrasonic face washing and dust removal assembly, an iron removal assembly, a rolling tension detection assembly, a defective labeling assembly and a rolling assembly. A rolling pressing wheel assembly, a kraft paper roll assembly and a rolling pushing assembly. According to the invention, online burr detection and efficient dust removal can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery production, and in particular to a burr online detection and ultrasonic dust removal laser die-cutting machine. Background Art

[0002] As new energy technologies become more mature, lithium batteries are increasingly widely used in all aspects of daily life. In the production process of lithium batteries, pole piece cutting is a very important production process, and corresponding cutting equipment is required to complete this process. The cutting equipment uses die-cutting to cut out the pole ears. On the one hand, this will cause the burrs on the edge of the pole piece to be too large, increasing the risk of short circuit in the battery cell. On the other hand, direct cutting will cause excessive dust and serious pole piece falling. The dust generated by cutting may fall into the surface of the pole piece or diaphragm, greatly increasing the short circuit rate and seriously affecting the safety of the battery cell. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a laser die-cutting machine with burr online detection and ultrasonic dust removal.

[0004] The technical solution of the present invention is as follows:

[0005] A burr online detection and ultrasonic dust removal laser die-cutting machine, which comprises, from unwinding to rewinding, an unwinding component, a flattening roller component, a belt splicing platform component, a tension detection component, a tension swing roller component, a reinforcing rib mechanism, a CCD defect detection component for the front and back sides before die-cutting, a forward deviation correction component before die-cutting, a forward deviation correction detection component before die-cutting, a laser length measurement component, a laser component, a tab air knife dust removal component, a CCD defect detection component for the A side, a main drive component, a tab CCD size detection component, a forward deviation correction component before slitting, a forward deviation correction detection component before slitting, a slitting component, a B side CCD defect detection component, a brush dust removal component, an ultrasonic edge washing dust removal component, a burr detection component, an ultrasonic surface washing dust removal component, an iron removal component, a rewinding tension detection component, a bad labeling component, a rewinding component, a rewinding pressure wheel component, a kraft paper roll component and a rewinding pushing component;

[0006] The material roll is automatically flattened and unwound through the unwinding assembly and the flattening roller assembly;

[0007] After the pole piece passes through the roller and the tape-joining platform assembly, the tension detection assembly and the tension swing roller assembly perform real-time tension detection and tension adjustment on the pole piece on the tape.

[0008] The reinforcing rib mechanism embosses the electrode foil area;

[0009] Then, the electrode piece is corrected by the pre-die-cutting advancing correction component and the pre-die-cutting advancing correction detection component, and the electrode ear is cut on the electrode piece in cooperation with the laser length measuring component and the laser component;

[0010] Before die-cutting, the CCD defect detection components on the front and back sides take photos of the surface of the incoming electrode for inspection. If there are defects on the surface of the electrode or bad marks in the previous process, the feedback signal will be sent to the laser component to perform asynchronous jump cutting or straight line cutting on the bad electrode.

[0011] After the tabs are formed, the tabs on both sides are dusted by the tab air knife dust removal assembly;

[0012] The A-side CCD defect detection component detects the width and surface defects of the electrode after die-cutting, and forms a closed-loop control with the forward deviation correction component before die-cutting;

[0013] The main driving component pulls the pole piece and cuts off the tension. The pole lug CCD size detection component detects and feedbacks the pole lug size and pole lug defects. If NG, it will be fed back to the bad labeling component for labeling processing.

[0014] Then, the electrode piece is corrected to be centered by the pre-slitting deviation correction component and the pre-slitting deviation correction detection component. The slitting component performs centered slitting and divides the electrode piece into two. The B-side CCD defect detection component performs width detection and surface defect detection on the electrode piece after slitting, and forms a closed-loop control with the pre-slitting deviation correction detection component. After slitting, the upper and lower conveyors are equipped with brush dust removal components and iron removal components to perform preliminary dust and iron removal on the surface of the electrode piece.

[0015] Then the pole piece is dusted by the ultrasonic cleaning and dust removal component, and then the burr detection component is used to detect the burrs on the slit end surface online. The burrs are identified according to the process setting requirements. If they do not meet the standards, they are fed back to the bad labeling component for labeling processing;

[0016] Then the pole piece is passed through an ultrasonic cleaning and dust removal assembly to remove dust from the pole piece surface;

[0017] The pole piece after dust removal comes to the winding assembly. The winding tension detection assembly cooperates with the magnetic powder clutch on the winding shaft to control the pole piece tension stability during winding, and cooperates with the winding pressure wheel assembly to wind and smooth the pole piece.

[0018] Then the kraft paper roll assembly is manually pulled to cover and remove dust from the outer layer of the rolled pole piece, and finally the pole roll is unloaded through the rolling and pushing assembly.

[0019] Furthermore, the reinforcing rib mechanism includes a rubber-coated wheel assembly and an embossing wheel assembly arranged above the rubber-coated wheel assembly;

[0020] The rubber-coated wheel assembly comprises a rubber-coated wheel fixing seat and a rubber-coated wheel, wherein the rubber-coated wheel is pivotally arranged on the rubber-coated wheel fixing seat;

[0021] The embossing wheel assembly includes a knob adjustment module, a first embossing wheel lifting cylinder, a second embossing wheel lifting cylinder, a first embossing wheel and a second embossing wheel. The first embossing wheel lifting cylinder and the second embossing wheel lifting cylinder are relatively movably arranged on the rotation adjustment module. The cylinder axis of the first embossing wheel lifting cylinder faces the rubber-coated wheel and is connected to the first embossing wheel. The cylinder axis of the second embossing wheel lifting cylinder faces the rubber-coated wheel and is connected to the second embossing wheel.

[0022] Furthermore, the reinforcing rib mechanism also includes a rubber-coated wheel self-cleaning assembly arranged below the rubber-coated wheel assembly, and the rubber-coated wheel self-cleaning assembly includes a sticky paper reeling and unreeling assembly and a rubber-coated pressure wheel assembly;

[0023] The sticky paper unwinding and rewinding assembly comprises an active unwinding motor, a first magnetic powder clutch, a sticky paper unwinding roller and a sticky paper rewinding roller, wherein the sticky paper unwinding roller and the sticky paper rewinding roller are pivotally arranged under the rubber-coated wheel, and the active unwinding motor is connected to the sticky paper unwinding roller through the first magnetic powder clutch;

[0024] The rubber-coated pressure wheel assembly is located between the sticky paper unwinding roller and the sticky paper winding roller, and includes an adjusting slide rail, a first rubber-coated pressure wheel telescopic cylinder, a second rubber-coated pressure wheel telescopic cylinder, a first rubber-coated pressure wheel and a second rubber-coated pressure wheel. The first rubber-coated pressure wheel telescopic cylinder and the second rubber-coated pressure wheel telescopic cylinder are relatively movably arranged on the adjusting slide rail. The cylinder axis of the first rubber-coated pressure wheel telescopic cylinder faces the rubber-coated wheel and is connected to the first rubber-coated pressure wheel, and the cylinder axis of the second rubber-coated pressure wheel telescopic cylinder faces the rubber-coated wheel and is connected to the second rubber-coated pressure wheel.

[0025] Furthermore, the front and back CCD defect detection components before die-cutting include a front CCD defect detection camera, a back CCD defect detection camera, a first photo roller and a second photo roller, the first photo roller and the second photo roller are arranged front and back along the pole piece belt direction, the front CCD defect detection camera is arranged corresponding to the first photo roller, and the back CCD defect detection camera is arranged corresponding to the second photo roller, and the front CCD defect detection camera and the back CCD defect detection camera are used to take photos and detect the two sides of the pole piece respectively, if the pole piece surface is photographed with NG defect, the feedback position pulse signal is given to the length and meter module and laser component of the PLC;

[0026] The laser length measuring assembly includes a length measuring roller and a pressure roller. The length measuring and metering module of the PLC calculates the bad position of the pole piece through the length measuring roller. The pressure roller is located on one side of the length measuring roller.

[0027] Furthermore, the ultrasonic edge washing and dust removal assembly includes a first dust removal head fixed support, an ultrasonic edge washing and dust removal head and a first dust removal pipe. The ultrasonic edge washing and dust removal head and the first dust removal pipe are both arranged on the first dust removal head fixed support, and the first dust removal pipe is connected to the ultrasonic edge washing and dust removal head.

[0028] Furthermore, the burr detection component includes an adjustment module, a detection camera and a correction probe, and the correction probe is movably arranged on the adjustment module through the detection camera.

[0029] Furthermore, the ultrasonic facial washing and dust removal assembly includes a telescopic cylinder for a dust removal head, a second dust removal head fixed support, an ultrasonic facial washing and dust removal head, a second dust removal pipe and a roller, the second dust removal head fixed support is connected to the cylinder shaft of the telescopic cylinder for the dust removal head, the ultrasonic facial washing and dust removal head is arranged on the second dust removal head fixed support, the roller is pivotally arranged at one end of the ultrasonic facial washing and dust removal head, and the second dust removal pipe is connected to the other end of the ultrasonic facial washing and dust removal head.

[0030] Furthermore, the kraft paper roll assembly includes a second magnetic powder clutch, a connecting shaft and an air shaft, and the second magnetic powder clutch is connected to the air shaft via the connecting shaft.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] (1) Low maintenance cost: Its reinforcing rib mechanism is equipped with a rubber-coated wheel self-cleaning component, which increases the service life of the rubber-coated roller and reduces the material and labor costs of subsequent maintenance;

[0033] (2) Intelligence: The burr detection component can detect the burrs on the end face of the electrode slice online, identify them according to the process setting requirements, and feedback to the bad labeling component for labeling if they do not meet the standards. This replaces the previous manual offline two-dimensional detection method, greatly improving work efficiency and reducing labor costs.

[0034] (3) Efficient dust removal: Ultrasonic dust removal is used to remove dust without contact, which reduces dust adhesion on the surface of the pole piece, thereby reducing the short-circuit rate of the battery cell molding process and improving product quality.

[0035] (4) High cleanliness: The internal dust removal design has wind field simulation, and the top air supply is combined with the return air to ensure the cleanliness level of 10,000 inside the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 only 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.

[0037] Figure 1 A structural plan view of a burr online detection and ultrasonic dust removal laser die-cutting machine provided by the present invention;

[0038] Figure 2 It is a structural schematic diagram of the reinforcing rib mechanism of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the dust-sticky paper retractable and reeling assembly of the present invention;

[0040] Figure 4 This is a schematic structural diagram of the rubber-coated pressure wheel assembly of the present invention;

[0041] Figure 5 It is a schematic diagram of the composition of the pole piece defect tripping system of the present invention;

[0042] Figure 6 This is a schematic diagram of the structure of the ultrasonic edge washing and dust removal assembly of the present invention;

[0043] Figure 7 It is a structural schematic diagram of the burr detection component of the present invention;

[0044] Figure 8 This is a schematic diagram of the structure of the ultrasonic face washing and dust removal assembly of the present invention;

[0045] Fig. 9 It is a schematic structural diagram of the kraft paper roll assembly of the present invention. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] In order to illustrate the technical solution of the present invention, a specific embodiment is provided below for illustration.

[0048] Example

[0049] See also Figure 1The present embodiment provides a burr online detection and ultrasonic dust removal laser die-cutting machine, which includes an unwinding component 1, a flattening roller component 2, a tape splicing platform component 3, a tension detection component 4, a tension swing roller component 5, a reinforcing rib mechanism 6, a front and back CCD defect detection component before die-cutting 7, a forward deviation correction component before die-cutting 8, a forward deviation correction detection component before die-cutting 9, a laser length measurement component 10, a laser component 11, a pole ear air knife dust removal component 12, a CCD defect detection component for the A side 13, and a main drive component. Component 14, tab CCD size detection component 15, pre-slitting guide component 16, pre-slitting guide detection component 17, slitting component 18, B-side CCD defect detection component 19, brush dust removal component 20, ultrasonic edge washing and dust removal component 21, burr detection component 22, ultrasonic surface washing and dust removal component 23, iron removal component 24, winding tension detection component 25, bad labeling component 26, winding component 27, winding pressure wheel assembly 28, kraft paper roll assembly 29 and winding pushing assembly 30.

[0050] The specific working process is as follows: the material roll is automatically flattened and unwound through the unwinding component 1 and the flattening roller component 2; after the pole piece passes through the roller and the tape-joining platform component 3, the pole piece is subjected to real-time tension detection and tension adjustment through the tension detection component 4 and the tension swing roller component 5 to ensure smooth tape running of the pole piece; the reinforcing rib mechanism 6 embosses the foil area of ​​the pole piece to produce longitudinal wrinkles on the foil and enhance the anti-folding ability of the pole ear; the reinforcing rib rubber-coated roller is equipped with a self-cleaning component, and the dust-adhesive paper roll contacts the rubber-coated roller through the cylinder extension and contraction to clean the dust and other impurities on the roller surface and improve the service life of the rubber-coated roller; then the pole piece is corrected by the pre-die-cutting correcting component 8 and the pre-die-cutting correcting detection component 9, and the laser length measurement component 1 is used to cooperate with the 0 and laser component 11 cut the pole piece ear; before die-cutting, the front and back CCD defect detection component 7 takes surface photos of the incoming pole piece for detection. If there are defects on the surface of the pole piece or bad marks in the previous process, the feedback signal is given to the laser component 11, and the bad pole piece is asynchronously skipped or cut in a straight line; after the pole ear is formed, the pole ear wind knife dust removal component 12 removes dust from the pole ears on both sides; the A-side CCD defect detection component 13 detects the width and surface defects of the pole piece after die-cutting, and forms a closed-loop control with the forward correction component before die-cutting to ensure cutting accuracy; the main drive component 14 pulls the pole piece and tension isolates it, and the pole ear CCD size detection component 15 feedbacks the pole ear size and pole ear defect detection, and feedbacks to the bad labeling component 26 for labeling when NG Label processing; then the electrode is corrected to the center by the pre-slitting forward deviation correction component 16 and the pre-slitting forward deviation correction detection component 17, the slitting component is centered and the electrode is divided into two, the B-side CCD defect detection component 19 performs width detection and surface defect detection on the electrode after slitting, and forms a closed-loop control with the pre-slitting forward deviation correction detection component 17 to ensure the slitting width accuracy. After slitting, the upper and lower belts are equipped with a brush dust removal component 20 and an iron removal component 24 to perform preliminary dust and iron removal on the surface of the electrode; then the electrode is dusted by the ultrasonic edge washing and dust removal component 21 on the end face of the electrode, and then the burr detection component 22 performs online detection of the burrs on the slitting end face, and identifies it according to the process setting requirements. If it does not meet the standards, it will be fed back to the bad labeling Component 26 is used for labeling; then the pole piece is subjected to the ultrasonic washing and dust removal component 23 for dust removal on the surface of the pole piece, and the dust on the surface of the workpiece is blown away from the surface of the product by high-frequency and high-pressure ultrasonic oscillation wind, and then the dust is taken away from the surface of the pole piece by negative pressure wind at the same time, forming a contactless dust removal, which will not cause secondary pollution to the surface of the pole piece; the pole piece after dust removal comes to the winding component 27, and the winding tension detection component 25 cooperates with the magnetic powder clutch on the winding shaft to control the tension stability of the pole piece during winding, avoid belt breakage and ensure neat winding, and cooperates with the winding pressure wheel component 28 to wind and smooth the pole piece; then the kraft paper roll component 29 is manually pulled to cover and dust the outer layer of the pole piece after winding, and finally the pole roll is unloaded through the winding pushing component 30.

[0051] Specifically, Figure 2As shown, the reinforcing rib mechanism 6 includes a rubber-coated wheel assembly 61 , an embossing wheel assembly 62 arranged above the rubber-coated wheel assembly 61 , and a rubber-coated wheel self-cleaning assembly 63 arranged below the rubber-coated wheel assembly 61 .

[0052] in:

[0053] The rubber-coated wheel assembly 61 includes a rubber-coated wheel fixing seat 611 and a rubber-coated wheel 612 . The rubber-coated wheel 612 is pivotally disposed on the rubber-coated wheel fixing seat 611 .

[0054] The embossing wheel assembly 62 includes a knob adjustment module 621, a first embossing wheel lifting cylinder 622, a second embossing wheel lifting cylinder 623, a first embossing wheel 624 and a second embossing wheel 625. The first embossing wheel lifting cylinder 622 and the second embossing wheel lifting cylinder 623 are relatively movably arranged on the rotation adjustment module 621. The cylinder shaft of the first embossing wheel lifting cylinder 622 faces the rubber-coated wheel 612 and is connected to the first embossing wheel 624. The cylinder shaft of the second embossing wheel lifting cylinder 623 faces the rubber-coated wheel 612 and is connected to the second embossing wheel 625. The rubber-coated wheel self-cleaning assembly 63 includes a sticky paper reel assembly 631 and a rubber-coated pressing wheel assembly 632.

[0055] like Figure 3 As shown, the sticky paper unwinding and rewinding assembly 631 includes an active unwinding motor 6311, a first magnetic powder clutch 6312, a sticky paper unwinding roller 6313 and a sticky paper rewinding roller 6314. The sticky paper unwinding roller 6313 and the sticky paper rewinding roller 6314 are pivotally arranged front and back below the rubber-coated wheel 612. The active unwinding motor 6311 is connected to the sticky paper unwinding roller 6313 through the first magnetic powder clutch 6312.

[0056] The rubber-coated pressing wheel assembly 632 is located between the sticky paper unwinding roller 6313 and the sticky paper winding roller 6314. Figure 4 As shown, it includes an adjusting slide rail 6321, a first rubber-wrapped pressing wheel telescopic cylinder 6322, a second rubber-wrapped pressing wheel telescopic cylinder 6323, a first rubber-wrapped pressing wheel 6324 and a second rubber-wrapped pressing wheel 6325. The first rubber-wrapped pressing wheel telescopic cylinder 6322 and the second rubber-wrapped pressing wheel telescopic cylinder 6323 are relatively movably arranged on the adjusting slide rail 6321. The cylinder axis of the first rubber-wrapped pressing wheel telescopic cylinder 6322 faces the rubber-wrapped pressing wheel 612 and is connected to the first rubber-wrapped pressing wheel 6324. The cylinder axis of the second rubber-wrapped pressing wheel telescopic cylinder 6323 faces the rubber-wrapped pressing wheel 612 and is connected to the second rubber-wrapped pressing wheel 6325.

[0057] The reinforcing rib mechanism 6 is equipped with a rubber-coated wheel self-cleaning component 63, which can effectively remove the residual metal powder on the rubber-coated roller after the pole piece is embossed, thereby reducing the secondary pollution of the pole piece caused by the rubber-coated roller and increasing the service life of the rubber-coated wheel. Its working principle is as follows: when the pole piece passes through the reinforcing rib mechanism 6 from unwinding, the first embossing wheel lifting cylinder 622 and the second embossing wheel lifting cylinder 623 control the first embossing wheel 624 and the second embossing wheel 625 to extend and retract toward the rubber-coated wheel 612 to press the pole piece foil, so that the foil has longitudinal wrinkles, and the anti-folding ability of the pole ear after die-cutting is enhanced; the active unwinding motor 6311 cooperates with the first magnetic powder clutch 6312 to drive the sticky paper unwinding roller 6313 to actively unwind the sticky paper and keep the sticky paper Stabilize the tension, combine the first rubber-coated pressing wheel telescopic cylinder 6322 and the second rubber-coated pressing wheel telescopic cylinder 6323 to control the first rubber-coated pressing wheel 6324 and the second rubber-coated pressing wheel 6325, and use sticky paper to remove residual metal powder on the surface of the rubber-coated wheel 612 from time to time to keep the roller surface clean, and the paper tape after sticking dust is collected on the sticky paper winding roller 6314; according to the width of the pole pieces of different processes, the knob adjustment module 621 and the adjustment slide rail 6321 respectively change the shape of the embossing wheel and the rubber-coated pressing wheel.

[0058] like Figure 5 The system for detecting defective electrode jump cutting is composed of a CCD defect detection component 7 for the front and back surfaces before die-cutting, a laser length measurement component 10 and a laser component 11.

[0059] in:

[0060] The front and back CCD defect detection component 7 before die-cutting includes a front CCD defect detection camera 71, a back CCD defect detection camera 72, a first photo roller 73 and a second photo roller 74. The first photo roller 73 and the second photo roller 74 are arranged front and back along the pole piece walking direction. The front CCD defect detection camera 71 is arranged corresponding to the first photo roller 73, and the back CCD defect detection camera 72 is arranged corresponding to the second photo roller 74.

[0061] The laser length measuring assembly 10 comprises a length measuring roller 101 and a pressure roller 102 , wherein the pressure roller 102 is located at one side of the length measuring roller 101 .

[0062] The defective pole piece skipping system can detect the pole piece with defective defects on the surface of the incoming material, and feedback the signal to the laser component, skip cutting the defective position, and reduce the waste of urination. Its working principle is: when the pole piece is unwound to the first camera roller 73 and the second camera roller 74 before laser cutting, the front CCD defect detection camera 71 and the back CCD defect detection camera 72 respectively take photos and detect the two sides of the pole piece. If the pole piece surface is photographed with NG defective defects, the feedback position pulse signal is given to the PLC length measuring meter module and the laser component 11. The PLC length measuring meter module calculates the defective position of the pole piece through the length measuring roller, and the pressure roller can prevent the pole piece from slipping. The laser component 11 triggers the signal to shield the cutting of the defective position, thereby realizing skipping.

[0063] like Figure 6 As shown, the ultrasonic edge-washing dust removal assembly 21 includes a first dust removal head fixing support 211, an ultrasonic edge-washing dust removal head 212 and a first dust removal pipe 213. The ultrasonic edge-washing dust removal head 212 and the first dust removal pipe 213 are both arranged on the first dust removal head fixing support 211, and the first dust removal pipe 213 is connected to the ultrasonic edge-washing dust removal head 212. The ultrasonic dust removal is adopted in an efficient contactless dust removal method to reduce dust adhesion on the surface of the pole piece, thereby reducing the short circuit rate of the battery cell forming in the later process and improving the product quality.

[0064] like Figure 7 As shown, the burr detection component 22 includes an adjustment module 221, a detection camera 222 and a correction probe 223, and the correction probe 223 is movably arranged on the adjustment module 221 through the detection camera 222. The burr detection component 22 can detect the burrs on the online pair and the electrode cutting end face, identify them according to the process setting requirements, and feedback to the bad labeling component 26 for labeling processing if they do not meet the standards, which eliminates the previous manual offline two-dimensional detection method, greatly improves work efficiency and reduces labor costs.

[0065] like Figure 8 As shown, the ultrasonic face washing and dust removal assembly 23 includes a dust removal head telescopic cylinder 231, a second dust removal head fixed support 232, an ultrasonic face washing and dust removal head 233, a second dust removal pipeline 234 and a roller 235. The second dust removal head fixed support 232 is connected to the cylinder shaft of the dust removal head telescopic cylinder 231, the ultrasonic face washing and dust removal head 233 is arranged on the second dust removal head fixed support 232, the roller 235 is pivotally arranged at one end of the ultrasonic face washing and dust removal head 233, and the second dust removal pipeline 234 is connected to the other end of the ultrasonic face washing and dust removal head 233. The ultrasonic dust removal is adopted in an efficient non-contact dust removal method to reduce dust adhesion on the surface of the pole piece, thereby reducing the short circuit rate of the battery cell molding in the later process and improving the product quality.

[0066] like Fig. 9As shown, the kraft paper roll assembly 29 includes a second magnetic powder clutch 291 , a connecting shaft 292 and an air shaft 293 , and the second magnetic powder clutch 291 is connected to the air shaft 293 via the connecting shaft 292 .

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser die-cutting machine with burr online detection and ultrasonic dust removal, characterized in that: From unwinding to rewinding, it includes unwinding assembly, flattening roller assembly, belt splicing platform assembly, tension detection assembly, tension swing roller assembly, reinforcing rib mechanism, front and back CCD defect detection assembly before die-cutting, forward deviation correction assembly before die-cutting, forward deviation correction detection assembly before die-cutting, laser length measurement assembly, laser assembly, ear wind knife dust removal assembly, A side CCD defect detection assembly, main drive assembly, ear CCD size detection assembly, forward deviation correction assembly before slitting, forward deviation correction detection assembly before slitting, slitting assembly, B side CCD defect detection assembly, brush dust removal assembly, ultrasonic edge washing dust removal assembly, burr detection assembly, ultrasonic surface washing dust removal assembly, iron removal assembly, rewinding tension detection assembly, bad labeling assembly, rewinding assembly, rewinding pressure wheel assembly, kraft paper roll assembly and rewinding pushing assembly; The material roll is automatically flattened and unwound through the unwinding assembly and the flattening roller assembly; After the pole piece passes through the roller and the tape-joining platform assembly, the tension detection assembly and the tension swing roller assembly perform real-time tension detection and tension adjustment on the pole piece on the tape. The reinforcing rib mechanism embosses the electrode foil area; Then, the electrode piece is corrected by the pre-die-cutting advancing correction component and the pre-die-cutting advancing correction detection component, and the electrode ear is cut on the electrode piece in cooperation with the laser length measuring component and the laser component; Before die-cutting, the CCD defect detection components on the front and back sides take photos of the surface of the incoming electrode for inspection. If there are defects on the surface of the electrode or bad marks in the previous process, the feedback signal will be sent to the laser component to perform asynchronous jump cutting or straight line cutting on the bad electrode. After the tabs are formed, the tabs on both sides are dusted by the tab air knife dust removal assembly; The A-side CCD defect detection component detects the width and surface defects of the electrode after die-cutting, and forms a closed-loop control with the forward deviation correction component before die-cutting; The main driving component pulls the pole piece and cuts off the tension. The pole lug CCD size detection component detects and feedbacks the pole lug size and pole lug defects. If NG, it will be fed back to the bad labeling component for labeling processing. Then, the electrode piece is corrected to be centered by the pre-slitting deviation correction component and the pre-slitting deviation correction detection component. The slitting component performs centered slitting and divides the electrode piece into two. The B-side CCD defect detection component performs width detection and surface defect detection on the electrode piece after slitting, and forms a closed-loop control with the pre-slitting deviation correction detection component. After slitting, the upper and lower conveyors are equipped with brush dust removal components and iron removal components to perform preliminary dust and iron removal on the surface of the electrode piece. Then the pole piece is dusted by the ultrasonic cleaning and dust removal component, and then the burr detection component is used to detect the burrs on the slit end surface online. The burrs are identified according to the process setting requirements. If they do not meet the standards, they are fed back to the bad labeling component for labeling processing; Then the pole piece is passed through an ultrasonic cleaning and dust removal assembly to remove dust from the pole piece surface; The pole piece after dust removal comes to the winding assembly. The winding tension detection assembly cooperates with the magnetic powder clutch on the winding shaft to control the pole piece tension stability during winding, and cooperates with the winding pressure wheel assembly to wind and smooth the pole piece. Then the kraft paper roll assembly is manually pulled to cover and remove dust from the outer layer of the rolled pole piece, and finally the pole roll is unloaded through the rolling and pushing assembly.

2. The laser die-cutting machine with burr online detection and ultrasonic dust removal according to claim 1 is characterized in that: The reinforcing rib mechanism comprises a rubber-coated wheel assembly and an embossing wheel assembly arranged above the rubber-coated wheel assembly; The rubber-coated wheel assembly comprises a rubber-coated wheel fixing seat and a rubber-coated wheel, wherein the rubber-coated wheel is pivotally arranged on the rubber-coated wheel fixing seat; The embossing wheel assembly includes a knob adjustment module, a first embossing wheel lifting cylinder, a second embossing wheel lifting cylinder, a first embossing wheel and a second embossing wheel. The first embossing wheel lifting cylinder and the second embossing wheel lifting cylinder are relatively movably arranged on the rotation adjustment module. The cylinder axis of the first embossing wheel lifting cylinder faces the rubber-coated wheel and is connected to the first embossing wheel. The cylinder axis of the second embossing wheel lifting cylinder faces the rubber-coated wheel and is connected to the second embossing wheel.

3. The laser die-cutting machine with burr online detection and ultrasonic dust removal according to claim 2 is characterized in that: The reinforcing rib mechanism also includes a rubber-coated wheel self-cleaning assembly arranged below the rubber-coated wheel assembly, and the rubber-coated wheel self-cleaning assembly includes a sticky paper reeling assembly and a rubber-coated pressure wheel assembly; The sticky paper unwinding and rewinding assembly comprises an active unwinding motor, a first magnetic powder clutch, a sticky paper unwinding roller and a sticky paper rewinding roller, wherein the sticky paper unwinding roller and the sticky paper rewinding roller are pivotally arranged under the rubber-coated wheel, and the active unwinding motor is connected to the sticky paper unwinding roller through the first magnetic powder clutch; The rubber-coated pressure wheel assembly is located between the sticky paper unwinding roller and the sticky paper winding roller, and includes an adjusting slide rail, a first rubber-coated pressure wheel telescopic cylinder, a second rubber-coated pressure wheel telescopic cylinder, a first rubber-coated pressure wheel and a second rubber-coated pressure wheel. The first rubber-coated pressure wheel telescopic cylinder and the second rubber-coated pressure wheel telescopic cylinder are relatively movably arranged on the adjusting slide rail. The cylinder axis of the first rubber-coated pressure wheel telescopic cylinder faces the rubber-coated wheel and is connected to the first rubber-coated pressure wheel, and the cylinder axis of the second rubber-coated pressure wheel telescopic cylinder faces the rubber-coated wheel and is connected to the second rubber-coated pressure wheel.

4. The laser die-cutting machine with burr online detection and ultrasonic dust removal according to claim 1 is characterized in that: The front and back CCD defect detection components before die-cutting include a front CCD defect detection camera, a back CCD defect detection camera, a first photo roller and a second photo roller. The first photo roller and the second photo roller are arranged front and back along the pole piece belt direction. The front CCD defect detection camera is arranged corresponding to the first photo roller, and the back CCD defect detection camera is arranged corresponding to the second photo roller. The front CCD defect detection camera and the back CCD defect detection camera are used to take photos and detect the two sides of the pole piece respectively. If an NG defect is found on the surface of the pole piece, a position pulse signal is fed back to the length and meter module and the laser component of the PLC. The laser length measuring assembly includes a length measuring roller and a pressure roller. The length measuring and metering module of the PLC calculates the bad position of the pole piece through the length measuring roller. The pressure roller is located on one side of the length measuring roller.

5. The laser die-cutting machine with burr online detection and ultrasonic dust removal according to claim 1, characterized in that: The ultrasonic edge washing and dust removal assembly includes a first dust removal head fixing support, an ultrasonic edge washing and dust removal head and a first dust removal pipe. The ultrasonic edge washing and dust removal head and the first dust removal pipe are both arranged on the first dust removal head fixing support, and the first dust removal pipe is connected to the ultrasonic edge washing and dust removal head.

6. The laser die-cutting machine with burr online detection and ultrasonic dust removal according to claim 1, characterized in that: The burr detection component comprises an adjustment module, a detection camera and a deflection correction probe, and the deflection correction probe is movably arranged on the adjustment module through the detection camera.

7. The laser die-cutting machine with burr online detection and ultrasonic dust removal according to claim 1, characterized in that: The ultrasonic face washing and dust removal assembly includes a telescopic cylinder for a dust removal head, a second dust removal head fixed support, an ultrasonic face washing and dust removal head, a second dust removal pipe and a roller. The second dust removal head fixed support is connected to the cylinder shaft of the telescopic cylinder for the dust removal head. The ultrasonic face washing and dust removal head is arranged on the second dust removal head fixed support. The roller is pivotally arranged at one end of the ultrasonic face washing and dust removal head. The second dust removal pipe is connected to the other end of the ultrasonic face washing and dust removal head.

8. The laser die-cutting machine with burr online detection and ultrasonic dust removal according to claim 1, characterized in that: The kraft paper roll assembly comprises a second magnetic powder clutch, a connecting shaft and an air shaft, wherein the second magnetic powder clutch is connected to the air shaft via the connecting shaft.

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