CN113140805A - Laser winding all-in-one machine - Google Patents

Laser winding all-in-one machine Download PDF

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Publication number
CN113140805A
CN113140805A CN202110550416.0A CN202110550416A CN113140805A CN 113140805 A CN113140805 A CN 113140805A CN 202110550416 A CN202110550416 A CN 202110550416A CN 113140805 A CN113140805 A CN 113140805A
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CN
China
Prior art keywords
winding
pole piece
laser
diaphragm
rotating shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110550416.0A
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Chinese (zh)
Inventor
阳如坤
王鹏
古景龙
陈飞
杨吉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Geesun Intelligent Technology Co Ltd
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Shenzhen Geesun Intelligent Technology Co Ltd
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Application filed by Shenzhen Geesun Intelligent Technology Co Ltd filed Critical Shenzhen Geesun Intelligent Technology Co Ltd
Priority to CN202110550416.0A priority Critical patent/CN113140805A/en
Publication of CN113140805A publication Critical patent/CN113140805A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • H01M10/0409—Machines for assembling batteries for cells with wound electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The embodiment of the invention provides a laser winding all-in-one machine, which relates to the technical field of battery manufacturing, and is characterized in that a pole piece unwinding mechanism, a laser cutting mechanism and a battery cell winding mechanism are sequentially integrated on a mounting plate in the conveying direction of mounting pole pieces, a pole lug cutting process and a battery cell winding process are highly integrated, equipment integration is realized, the work and the loss of material coil caching and feeding and discharging between the pole lug forming and the battery cell winding are reduced, the damage to pole pieces is reduced, and the quality of a battery cell is improved; meanwhile, the pole piece and the diaphragm are wound to form a winding battery cell, and after the tab is cut and formed, a battery cell winding process is directly performed, so that equipment integration is realized, equipment in an independent process is reduced, and the efficiency is improved. Meanwhile, the tab on the winding battery cell is subjected to position detection through the tab alignment degree detection mechanism, so that closed-loop control over the tab position can be realized, the dislocation quantity of the tab is reduced, and the battery cell quality is improved.

Description

Laser winding all-in-one machine
Technical Field
The invention relates to the technical field of battery manufacturing, in particular to a laser winding all-in-one machine.
Background
At present, in the production process of a power lithium battery, the winding of a battery core is one of the most important processes in the production process of the battery, and in the production process of the battery core in the multi-tab process, the cutting and forming of tabs are indispensable processes. Laser cutting utmost point ear shaping process separately goes on with coiling, and the closed loop of coiling shaping electric core utmost point ear dislocation volume and utmost point ear cutting interval control can't be realized to the divided production mode of process, and electric core causes the defective rate to account for than great because utmost point ear dislocation in process of production. In addition, the laser cutting utmost point ear shaping process needs the factory building to lay equipment with the detached production mode of coiling process, adds special equipment start personnel etc. and need increase to put into more manpower and materials, and the process loss is more.
Disclosure of Invention
The invention aims to provide a laser winding all-in-one machine, which can highly integrate a tab cutting process and a cell winding process, realize equipment integration, reduce material roll buffering between the winding of a tab forming cutter cell and the work and loss of feeding and discharging, reduce single process equipment, improve the work efficiency, reduce the damage to a pole piece, realize closed-loop control of tab cutting, reduce the dislocation amount of the tab and improve the cell quality.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a laser winding all-in-one machine, which comprises a mounting plate, a pole piece unwinding mechanism, a diaphragm unwinding mechanism, a laser cutting mechanism, a cell winding mechanism and a tab alignment degree detection mechanism, wherein the pole piece unwinding mechanism, the laser cutting mechanism and the cell winding mechanism are sequentially integrated and arranged on the mounting plate according to the conveying direction of a pole piece, the pole piece unwinding mechanism is used for unwinding the pole piece, the laser cutting mechanism is used for cutting the pole piece to form a tab, the diaphragm unwinding mechanism is arranged on the feeding side of the cell winding mechanism and is used for unwinding the diaphragm, the cell winding mechanism is used for winding the pole piece and the diaphragm to form a winding cell, the tab alignment degree detection mechanism is arranged adjacent to the cell winding mechanism and is used for detecting the position of the tab on the winding cell on the cell winding mechanism, and the tab alignment degree detection mechanism is electrically connected with the laser cutting mechanism and the cell winding mechanism, so as to realize the closed-loop control of the position of the pole lug.
In an optional embodiment, the tab alignment degree detection mechanism includes an alignment control module and a parameter detection module, the alignment control module is disposed on the mounting plate and is internally provided with a standard parameter of a winding battery cell, the parameter detection module is disposed on the battery cell winding mechanism and is electrically connected with the alignment control module for collecting an actual parameter of the winding battery cell, the alignment control module is used for comparing the actual parameter with the standard parameter and generating a misalignment of the winding battery cell, and the laser cutting mechanism and the battery cell winding mechanism adjust the position of the tab.
In an optional implementation manner, the laser winding all-in-one machine further includes a diaphragm incoming material detection mechanism and a pole piece incoming material detection mechanism, the diaphragm incoming material detection mechanism is disposed on the mounting plate and located on a discharge side of the diaphragm unwinding mechanism for detecting incoming material quality of the diaphragm, the pole piece incoming material detection mechanism is disposed on the mounting plate and located on a discharge side of the pole piece unwinding mechanism for detecting incoming material quality of the pole piece, and the cell winding mechanism is electrically connected with the diaphragm incoming material detection mechanism and the pole piece incoming material mechanism at the same time for adjusting winding speed, winding acceleration and winding tension according to incoming material quality of the pole piece and the diaphragm.
In an optional implementation mode, the laser winding all-in-one machine further comprises a diaphragm deviation rectifying mechanism and a pole piece deviation rectifying mechanism, the diaphragm deviation rectifying mechanism is arranged on the mounting plate and located on the discharge side of the diaphragm unwinding mechanism, the pole piece deviation rectifying mechanism is arranged on the mounting plate and located on the discharge side of the pole piece unwinding mechanism, the diaphragm deviation rectifying mechanism is electrically connected with the diaphragm incoming material detecting mechanism and used for rectifying deviation of the diaphragm according to the quality of the diaphragm incoming material, and the pole piece deviation rectifying mechanism is electrically connected with the pole piece incoming material monitoring mechanism and used for adjusting the deviation rectifying speed of the pole piece according to the quality of the pole piece incoming material.
In an optional implementation mode, the laser winding all-in-one machine further comprises a rubberizing mechanism, the rubberizing mechanism is arranged on the mounting plate and adjacent to the winding mechanism, and is used for rubberizing the winding battery core.
In an optional implementation mode, the rubberizing mechanism comprises a rubber clamping component, a rubber roller arm and a rubberizing roller, the rubberizing roller is rotatably arranged at one end of the rubber roller arm, the other end of the rubber roller arm is rotatably arranged on the mounting plate, the rubberizing roller rotates relative to the mounting plate under the driving of the rubber roller seat so as to be close to or far away from the winding mechanism, the rubber clamping component is rotatably arranged at the end of the rubber roller arm, and the rotation center of the rubber clamping component coincides with the rotation center of the rubberizing roller so as to be used for attaching the rubber paper to the rubberizing roller.
In an optional embodiment, a rubber roll rotating shaft is arranged at one end, away from the rubberizing roll, of the rubber roll arm, the rubber roll rotating shaft is rotatably arranged on the mounting plate, the rubber roll arm is connected with the rubber roll rotating shaft, so that the rubber roll arm can rotate under the driving of the rubber roll rotating shaft, a first rotating shaft is rotatably sleeved outside the rubber roll rotating shaft, the first rotating shaft is in transmission connection with the rubberizing roll through a first belt and used for driving the rubberizing roll to rotate, a second rotating shaft is rotatably sleeved outside the first rotating shaft and used for driving the laminating assembly to rotate, and the second rotating shaft is in transmission connection with the laminating assembly through a second belt and used for driving the laminating assembly to rotate.
In an alternative embodiment, a first rolling bearing is arranged between the first rotating shaft and the rubber roller rotating shaft so as to enable the first rotating shaft and the rubber roller rotating shaft to rotate independently, and a second rolling bearing is arranged between the second rotating shaft and the first rotating shaft so as to enable the second rotating shaft and the first rotating shaft to rotate independently.
In optional embodiment, electric core winding mechanism includes the coiling fixing base, trades station carousel and a plurality of book needle, and the coiling fixing base sets up on the mounting panel, trades the station carousel and rotationally sets up on the coiling fixing base to possess a plurality of stations, a plurality of book needle intervals set up on trading the station carousel, and switch between a plurality of stations under the drive of trading the station carousel.
In an optional implementation mode, the laser cutting mechanism comprises a laser mounting seat, a laser cutter, a laser cutting roller and a dust collection structure, the laser mounting seat is arranged on the mounting plate, the laser cutting roller is rotatably arranged on the laser mounting seat and used for conveying pole pieces, the laser cutter is arranged on the laser mounting seat and used for cutting the pole pieces to form pole lugs, and the dust collection structure is arranged on the lower portion of the laser mounting seat and located below the laser cutting roller and used for receiving and sucking away dust generated by cutting.
The beneficial effects of the embodiment of the invention include, for example:
according to the invention, the pole piece unreeling mechanism, the laser cutting mechanism and the cell winding mechanism are sequentially integrated on the mounting plate in the conveying direction for mounting the pole pieces, the pole lug cutting process and the cell winding process are highly integrated, so that the equipment integration is realized, the material coil caching from the pole lug forming to the cell winding and the work and loss of feeding and discharging are reduced, the damage to the pole pieces is reduced, and the cell quality is improved; meanwhile, the pole piece and the diaphragm are wound to form a winding battery cell, and after the tab is cut and formed, a battery cell winding process is directly performed, so that equipment integration is realized, equipment in an independent process is reduced, and the efficiency is improved. Meanwhile, the tab on the winding battery cell is subjected to position detection through the tab alignment degree detection mechanism, so that closed-loop control over the tab position can be realized, the dislocation quantity of the tab is reduced, and the battery cell quality is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a laser winding all-in-one machine provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the alignment detection mechanism for the pole ear of FIG. 1;
FIG. 3 is a schematic structural view of the taping mechanism of FIG. 1;
FIG. 4 is a schematic view of the connection structure of the rotating shaft of the rubber roller in FIG. 3;
FIG. 5 is a schematic structural diagram of the laser cutting mechanism of FIG. 1;
fig. 6 is a schematic structural diagram of the cell winding mechanism in fig. 1.
Icon: 100-laser winding integrated machine; 110-a mounting plate; 120-pole piece unwinding mechanism; 130-membrane unwinding mechanism; 140-laser cutting mechanism; 141-laser mounting seat; 143-laser cutter; 145-laser cutting through the roller; 147-a dust extraction structure; 150-a cell winding mechanism; 151-winding the holder; 153-station changing rotary table; 155-winding needle; 160-tab alignment detection mechanism; 161-alignment control module; 163-parameter detection module; 170 a-diaphragm feed detection mechanism; 170 b-pole piece incoming material detection mechanism; 180 a-diaphragm deviation rectifying mechanism; 180 b-a pole piece deviation rectifying mechanism; 190-a rubberizing mechanism; 191-a glue sandwiched component; 193-glue roller arm; 1931-rubber roll shaft; 1933-first axis of rotation; 1935-second axis of rotation; 1937-first rolling bearing; 1939-a second rolling bearing; 195-rubberizing roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
First embodiment
With reference to fig. 1 to 6, the embodiment provides a laser winding all-in-one machine 100, which highly integrates a tab cutting process and a cell winding process, realizes device integration, reduces work and loss of material roll caching and feeding and discharging between tab forming and cell winding, reduces damage to a pole piece, and improves cell quality; meanwhile, the pole piece and the diaphragm are wound to form a winding battery cell, and after the tab is cut and formed, a battery cell winding process is directly performed, so that equipment integration is realized, equipment in an independent process is reduced, and the efficiency is improved. Meanwhile, the tab on the winding battery cell is subjected to position detection through the tab alignment degree detection mechanism 160, so that closed-loop control over the tab position can be realized, the dislocation quantity of the tab is reduced, and the battery cell quality is improved.
The laser winding all-in-one machine 100 provided by this embodiment includes a mounting plate 110, a pole piece unwinding mechanism 120, a diaphragm unwinding mechanism 130, a laser cutting mechanism 140, a cell winding mechanism 150, and a tab alignment degree detection mechanism 160, where the pole piece unwinding mechanism 120, the laser cutting mechanism 140, and the cell winding mechanism 150 are sequentially integrated on the mounting plate 110 according to a conveying direction of a pole piece, the pole piece unwinding mechanism 120 is used to unwind the pole piece, the laser cutting mechanism 140 is used to cut the pole piece to form a tab, the diaphragm unwinding mechanism 130 is disposed on a feeding side of the cell winding mechanism 150 and is used to unwind the diaphragm, the cell winding mechanism 150 is used to wind the pole piece and the diaphragm and form a wound cell, the tab alignment degree detection mechanism 160 is disposed adjacent to the cell winding mechanism 150 and is used to perform position detection on the tab on the wound cell on the cell winding mechanism 150, and the tab alignment degree detection mechanism 160 is electrically connected to the laser cutting mechanism 140 and the cell winding mechanism 150, so as to realize the closed-loop control of the position of the pole lug.
In this embodiment, the number of the pole piece unwinding mechanisms 120 and the number of the diaphragm unwinding mechanisms 130 are two, and the two pole piece unwinding mechanisms 120 are disposed on the left and right sides of the mounting plate 110 and are respectively used for unwinding the positive pole piece and the negative pole piece. The two pole piece unwinding mechanisms 120 and the two diaphragm unwinding mechanisms 130 are arranged in a staggered manner, so that a battery cell with alternately superposed pole pieces and diaphragms is formed.
In this embodiment, the pole piece unwinding mechanism 120, the laser cutting mechanism 140, and the cell winding mechanism 150 are integrated in sequence in the conveying direction of the pole pieces mounted on the mounting plate 110, and the pole lug cutting process and the cell winding process are highly integrated, so that the equipment integration is realized, the work and loss of material coil caching and feeding and discharging between the pole lug forming and the cell winding are reduced, the damage to the pole pieces is reduced, and the cell quality is improved; meanwhile, the pole piece and the diaphragm are wound to form a winding battery cell, and after the tab is cut and formed, a battery cell winding process is directly performed, so that equipment integration is realized, equipment in an independent process is reduced, and the efficiency is improved. Meanwhile, the tab on the winding battery cell is subjected to position detection through the tab alignment degree detection mechanism 160, so that closed-loop control over the tab position can be realized, the dislocation quantity of the tab is reduced, and the battery cell quality is improved.
The tab alignment degree detection mechanism 160 includes an alignment control module 161 and a parameter detection module 163, the alignment control module 161 is disposed on the mounting plate 110, and a standard parameter of a winding battery cell is disposed in the alignment control module 161, the parameter detection module 163 is disposed on the battery cell winding mechanism 150, and is electrically connected to the alignment control module 161, and is configured to collect an actual parameter of the winding battery cell, the alignment control module 161 is configured to compare the actual parameter and the standard parameter and generate a misalignment amount of the winding battery cell, and the laser cutting mechanism 140 and the battery cell winding mechanism 150 perform position adjustment on the tab.
In this embodiment, the alignment control module 161 may be integrated on a central control machine of the whole system, the parameter detection module 163 includes a plurality of parameter sensors, and the parameter detection module 163 collects parameters of the wound battery cell, for example, collects image information by using a CCD camera, so as to detect the position of the tab, the thickness detection sensor detects the thickness of the pole piece and the diaphragm, and the displacement sensor detects the displacement of the tab, and the specific type of the parameter detection module 163 is not specifically limited herein. The actual parameters collected are compared with the standard parameters to obtain the dislocation amount, the laser cutting mechanism 140 and the battery cell winding mechanism 150 adjust the cutting position, the running speed and the like of the tab through the dislocation amount to realize closed-loop control, and the specific process and the realization method of the closed-loop control can refer to the existing closed-loop control technology.
The standard parameters in this embodiment refer to parameters of a standard winding battery cell, and the parameters may be calculated values or collected when the standard battery cell is formed by winding.
In this embodiment, aiming at the problems of difficult tab alignment, large alignment error and low yield in the multi-tab process of the power battery, in the aspect of hardware design, through model matching and model selection of intelligent sensors such as a CCD camera, thickness, displacement and the like, a corresponding hardware mechanism is configured to directly realize high-quality acquisition of real-time state data of the tab, a corresponding intelligent algorithm is developed, a reasonable mathematical model of the dislocation amount, the position of an encoder and the position of a battery cell winding mechanism 150 is constructed from the establishment of an intelligent model, and a key pair array of the position of the encoder and the position of a winding motor during tab induction is obtained, so that the sampling data of a high-quality battery cell is used as a standard template, the data detected by the sensor in the production process is compared with the standard template battery cell, the calculation of the dislocation amount of an independent tab is completed, and online detection is realized. And the influence of parameters such as unloading mode/angle, winding speed, process pause, pole piece thickness, winding cell diameter, tension, cutting precision and the like on the position precision of the pole piece is obtained by separating factors, detecting numerical values, verifying a system, optimizing coefficients and combining orthogonal experiments, a dislocation compensation model after the parameters or hardware data are changed is established, the laser tab cutting position and the winding cell diameter are adjusted in real time through comprehensive calculation of the system, and precision closed loop is realized.
Further, the laser winding all-in-one machine 100 further includes a diaphragm incoming material detection mechanism 170a and a pole piece incoming material detection mechanism 170b, the diaphragm incoming material detection mechanism 170a is disposed on the mounting plate 110 and located on the discharging side of the diaphragm unwinding mechanism 130 for detecting the incoming material quality of the diaphragm, the pole piece incoming material detection mechanism 170b is disposed on the mounting plate 110 and located on the discharging side of the pole piece unwinding mechanism 120 for detecting the incoming material quality of the pole piece, and the cell winding mechanism 150 is electrically connected with the diaphragm incoming material detection mechanism 170a and the pole piece incoming material mechanism at the same time for adjusting the winding speed, the winding acceleration and the winding tension according to the incoming material quality of the pole piece and the diaphragm.
In this embodiment, the membrane incoming material detection mechanism 170a and the pole piece incoming material detection mechanism 170b can both perform parameter acquisition through different sensors, so as to acquire parameters such as edge shapes, thicknesses, displacement amounts and the like of the pole pieces and the membranes, and compare the parameters with standard quantities, so as to determine the incoming material quality according to errors. Specific techniques for incoming material detection may also refer to existing pole piece quality and diaphragm quality detection techniques.
Further, the laser winding integrated machine 100 further comprises a diaphragm deviation rectifying mechanism 180a and a pole piece deviation rectifying mechanism 180b, the diaphragm deviation rectifying mechanism 180a is arranged on the mounting plate 110 and located on the discharging side of the diaphragm unwinding mechanism 130, the pole piece deviation rectifying mechanism 180b is arranged on the mounting plate 110 and located on the discharging side of the pole piece unwinding mechanism 120, the diaphragm deviation rectifying mechanism 180a is electrically connected with the diaphragm incoming material detecting mechanism 170a and used for rectifying deviation of the diaphragm according to the quality of the diaphragm incoming material, the pole piece deviation rectifying mechanism 180b is electrically connected with the pole piece incoming material monitoring mechanism and used for adjusting the deviation rectifying speed of the pole piece according to the quality of the pole piece incoming material, and therefore the pole piece is rapidly rectified.
In the embodiment, for the problems of random jitter, deviation and the like of a pole piece/diaphragm during high-speed winding caused by the difference of the incoming material quality of the pole piece/diaphragm (wavy edge, serpentine bending and uneven thickness), by taking wrinkles, deformation and material thickness in the winding process of the pole piece/diaphragm as research objects, the relationship between the thickness and the height of the pole piece and the position deviation of a deviation-correcting motor after unwinding and the output position deviation of a deviation-correcting sensor is obtained through an end face CCD (charge coupled device), a thickness measurement and distance sensor to form empirical parameters, the positions of the deviation-correcting sensor and the deviation-correcting motor when the current pole piece is unwound are reversely analyzed, the range of the height of the wrinkles is calculated, and the size range of the bending deformation of the pole piece is obtained through the acquired data of 3 deviation-correcting sensors on the end face of the material; and simultaneously analyzing the influence of parameters such as pole piece fold deformation, winding speed, main winding acceleration and deceleration, all levels of deviation rectifying speed, tension and the like on a pole piece shaking rule, a process deviation rule and the final quality of the battery cell according to test data to obtain a corresponding deviation rule, optimizing a corresponding intelligent matching algorithm, and compensating the problems of pole piece random shaking, deviation and the like caused by incoming material fold quantity by optimizing parameters such as winding speed, a deviation rectifying mechanism, material tension and the like in real time through full closed loop control. Through the real-time monitoring of the pole lug feeding data and the multi-parameter cooperative closed-loop control technology, the pole piece still has high alignment degree when wrinkles and thickness changes occur.
Further, the laser winding all-in-one machine 100 further comprises a rubberizing mechanism 190, and the rubberizing mechanism 190 is arranged on the mounting plate 110, is adjacent to the winding mechanism, and is used for rubberizing the winding electric core.
The rubberizing mechanism 190 comprises a rubberizing component 191, a rubber roller arm 193 and a rubberizing roller 195, the rubberizing roller 195 is rotatably arranged at one end of the rubber roller arm 193, the other end of the rubber roller arm 193 is rotatably arranged on the mounting plate 110, the rubberizing roller 195 is driven by a rubber roller seat to rotate relative to the mounting plate 110 so as to be close to or far away from the winding mechanism, the rubberizing component 191 is rotatably arranged at the end of the rubber roller arm 193, and the rotation center of the rubberizing component 191 coincides with the rotation center of the rubberizing roller 195 and is used for rubberizing paper to be attached to the rubberizing roller 195.
The doubling component 191 comprises two doubling rollers, a doubling rotating arm and a doubling rotating shaft, the doubling rotating shaft and the rotating shaft center of the rubberizing roller 195 are overlapped, one end of the doubling rotating arm is connected with the doubling rotating shaft, the other end of the doubling rotating arm is connected with the two doubling rollers, and the doubling rotating arm is driven by the doubling rotating shaft to rotate and drives the two doubling rollers to rotate. The two rubber clamping rollers are used for clamping the gummed paper and are positioned on the peripheral surface of the rubberizing roller 195, and the gummed paper is attached to the surface of the rubberizing roller 195, so that the glue preparation is completed. For the specific structure of the glue-sandwiched component 191, reference can be made to the existing glue-sandwiching mechanism.
In this embodiment, one end of the rubber roll arm 193 away from the rubberizing roll 195 is provided with a rubber roll rotating shaft 1931, the rubber roll rotating shaft 1931 is rotationally arranged on the mounting plate 110, the rubber roll arm 193 is connected with the rubber roll rotating shaft 1931, so that the rubber roll arm 193 can rotate under the driving of the rubber roll rotating shaft 1931, the rubber roll rotating shaft 1931 is externally rotationally sleeved with a first rotating shaft 1933, the first rotating shaft 1933 is in transmission connection with the rubberizing roll 195 through a first belt, the rubber roll 195 is driven to rotate, the first rotating shaft 1933 is externally rotationally sleeved with a second rotating shaft 1935, the second rotating shaft 1935 is in transmission connection with the rubber clamping component 191 through a second belt, and the rubber clamping component 191 is driven to rotate. Specifically, in this embodiment, the glue roller arm 193 adopts a swing arm structure to drive the glue pasting roller 195 to approach or keep away from the electric core winding mechanism 150, which greatly saves space compared with a conventional cylinder linear pushing structure, and has simple structure and convenient installation.
In this embodiment, a first rolling bearing 1937 is disposed between the first revolving shaft 1933 and the rubber roll rotating shaft 1931, so that the first revolving shaft 1933 and the rubber roll rotating shaft 1931 rotate independently, and a second rolling bearing 1939 is disposed between the second revolving shaft 1935 and the first revolving shaft 1933, so that the second revolving shaft 1935 and the first revolving shaft 1933 rotate independently. Specifically, rubber roll pivot 1931, first gyration axle 1933 and second gyration axle 1935 between the nested distribution, connect through antifriction bearing for three group rotating system are at same axle center but mutually independent, have saved mechanism space greatly, and have avoided mutual influence.
It should be noted that in this embodiment, the first revolving roller, the second revolving roller and the rubber roller rotating shaft 1931 rotate independently from each other and are driven by different power sources, so that the rotation of the rubber roller arm 193, the rubber roller 195 and the rubber sandwiching assembly 191 is driven to be independent from each other, and the control flexibility is better.
The battery cell winding mechanism 150 comprises a winding fixing seat 151, a station changing turntable 153 and a plurality of winding needles 155, the winding fixing seat 151 is arranged on the mounting plate 110, the station changing turntable 153 is rotatably arranged on the winding fixing seat 151 and provided with a plurality of stations, the plurality of winding needles 155 are arranged on the station changing turntable 153 at intervals, and are driven by the station changing turntable 153 to be switched among the stations.
In this embodiment, the winding fixing base 151 is fixedly disposed in the middle of the mounting plate 110, the station-changing turntable 153 is rotatably disposed on the winding fixing base 151 and has two stations, the number of the winding pins 155 is two, and the two winding pins 155 are driven by the station-changing turntable 153 to switch between the two stations, so as to achieve a winding action. And the winding of the battery cell and the automatic conversion of different winding stations can be realized through the battery cell winding mechanism 150, and the switching between the constant angular velocity winding and the constant linear velocity winding can be realized. And a double-servo motor or multi-servo motor driving mechanism and a corresponding 2 or more sets of winding needle 155 mechanisms are arranged according to the double-station or multi-station mechanism. Meanwhile, a turret locking and positioning mechanism is arranged behind the replacement station.
The laser cutting mechanism 140 comprises a laser mounting seat 141, a laser cutter 143, a laser cutting roller 145 and a dust suction structure 147, wherein the laser mounting seat 141 is arranged on the mounting plate 110, the laser cutting roller 145 is rotatably arranged on the laser mounting seat 141 and used for conveying pole pieces, the laser cutter 143 is arranged on the laser mounting seat 141 and used for cutting the pole pieces to form pole lugs, and the dust suction structure 147 is arranged at the lower part of the laser mounting seat 141 and located below the laser cutting roller 145 and used for receiving and sucking away dust generated by cutting.
In this embodiment, a laser cutting roller 145 is used to support the pole piece, and a laser cutter 143 is corresponding to the edge of the pole piece to cut the edge of the pole piece to form the tab.
It should be noted that, the laser mount 141 is provided with a cutting station, and the cutting station is adjusted by a ball screw in cooperation with a motor, so as to realize quantitative adjustment of cutting width parameters. And cutting the pole piece by using laser, marking the pole ear of the Xinchungao and the position, and timely pumping away dust generated by cutting. The cutting back utmost point ear has prevents turning over a structure, prevents to appear hitting the utmost point ear condition. Meanwhile, a waste material collecting system is arranged after laser cutting, so that the stability of continuous production is ensured.
In summary, in the laser winding all-in-one machine 100 provided in this embodiment, the pole piece unwinding mechanism 120, the laser cutting mechanism 140, and the cell winding mechanism 150 are sequentially integrated in the conveying direction of the pole pieces mounted on the mounting plate 110, and the pole tab cutting process and the cell winding process are highly integrated, so that the device integration is realized, the work and loss of material roll caching and feeding and discharging between the pole tab forming and the cell winding are reduced, the damage to the pole piece is reduced, and the cell quality is improved; meanwhile, the pole piece and the diaphragm are wound to form a winding battery cell, and after the tab is cut and formed, a battery cell winding process is directly performed, so that equipment integration is realized, equipment in an independent process is reduced, and the efficiency is improved. Meanwhile, the tab on the winding battery cell is subjected to position detection through the tab alignment degree detection mechanism 160, so that closed-loop control over the tab position can be realized, the dislocation quantity of the tab is reduced, and the battery cell quality is improved. And the pole piece can still have higher alignment degree when wrinkles and thickness change occur through the real-time monitoring of pole lug incoming material data and the multi-parameter cooperative closed-loop control technology. In addition, through adopting neotype rubberizing structure for whole occupation space is littleer, and rubberizing control is more nimble.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A laser winding integrated machine is characterized by comprising a mounting plate, a pole piece unwinding mechanism, a diaphragm unwinding mechanism, a laser cutting mechanism, a cell winding mechanism and a lug alignment degree detection mechanism, wherein the pole piece unwinding mechanism, the laser cutting mechanism and the cell winding mechanism are sequentially integrated and arranged on the mounting plate according to the conveying direction of a pole piece, the pole piece unwinding mechanism is used for unwinding the pole piece, the laser cutting mechanism is used for cutting the pole piece to form a lug, the diaphragm unwinding mechanism is arranged on the feeding side of the cell winding mechanism and used for unwinding the diaphragm, the cell winding mechanism is used for winding the pole piece and the diaphragm and forming a wound cell, the lug alignment degree detection mechanism is arranged adjacent to the cell winding mechanism and used for detecting the position of the lug on the wound cell on the cell winding mechanism, and the lug alignment degree detection mechanism is electrically connected with the laser cutting mechanism and the cell winding mechanism, so as to realize the closed-loop control of the position of the pole lug.
2. The laser winding all-in-one machine of claim 1, wherein the tab alignment degree detection mechanism comprises an alignment control module and a parameter detection module, the alignment control module is arranged on the mounting plate and internally provided with standard parameters of a winding battery cell, the parameter detection module is arranged on the battery cell winding mechanism and electrically connected with the alignment control module and used for collecting actual parameters of the winding battery cell, the alignment control module is used for comparing the actual parameters with the standard parameters and generating dislocation of the winding battery cell, and the laser cutting mechanism and the battery cell winding mechanism adjust the position of the tab.
3. The laser winding all-in-one machine of claim 1, further comprising a diaphragm incoming material detection mechanism and a pole piece incoming material detection mechanism, wherein the diaphragm incoming material detection mechanism is arranged on the mounting plate and located on the discharge side of the diaphragm unwinding mechanism and used for detecting the incoming material quality of the diaphragm, the pole piece incoming material detection mechanism is arranged on the mounting plate and located on the discharge side of the pole piece unwinding mechanism and used for detecting the incoming material quality of the pole piece, and the cell winding mechanism is electrically connected with the diaphragm incoming material detection mechanism and the pole piece incoming material mechanism at the same time and used for adjusting the winding speed, the winding acceleration and the winding tension according to the incoming material quality of the pole piece and the diaphragm.
4. The laser winding all-in-one machine as claimed in claim 3, further comprising a diaphragm deviation correcting mechanism and a pole piece deviation correcting mechanism, wherein the diaphragm deviation correcting mechanism is arranged on the mounting plate and located on the discharge side of the diaphragm unwinding mechanism, the pole piece deviation correcting mechanism is arranged on the mounting plate and located on the discharge side of the pole piece unwinding mechanism, the diaphragm deviation correcting mechanism is electrically connected with the diaphragm feeding detecting mechanism and used for correcting the diaphragm according to the quality of the supplied diaphragm, and the pole piece deviation correcting mechanism is electrically connected with the pole piece feeding monitoring mechanism and used for adjusting the deviation correcting speed of the pole piece according to the quality of the supplied pole piece.
5. The laser winding all-in-one machine according to claim 1, further comprising a gluing mechanism, wherein the gluing mechanism is arranged on the mounting plate and adjacent to the winding mechanism, and is used for gluing the winding battery cell.
6. The laser winding all-in-one machine as claimed in claim 5, wherein the rubberizing mechanism comprises a rubber clamping component, a rubber roller arm and a rubberizing roller, the rubberizing roller is rotatably arranged at one end of the rubber roller arm, the other end of the rubber roller arm is rotatably arranged on the mounting plate, the rubberizing roller is driven by the rubber roller seat to rotate relative to the mounting plate so as to be close to or far away from the winding mechanism, the rubber clamping component is rotatably arranged at the end of the rubber roller arm, and the rotation center of the rubber clamping component coincides with the rotation center of the rubberizing roller for rubberizing paper on the rubberizing roller.
7. The laser winding all-in-one machine as claimed in claim 6, wherein a rubber roller rotating shaft is arranged at one end of the rubber roller arm away from the rubberizing roller, the rubber roller rotating shaft is rotatably arranged on the mounting plate, the rubber roller arm is connected with the rubber roller rotating shaft so that the rubber roller arm can rotate under the driving of the rubber roller rotating shaft, a first rotating shaft is rotatably sleeved outside the rubber roller rotating shaft, the first rotating shaft is in transmission connection with the rubberizing roller through a first belt and used for driving the rubberizing roller to rotate, a second rotating shaft is rotatably sleeved outside the first rotating shaft and used for being in transmission connection with the laminating component through a second belt and used for driving the laminating component to rotate.
8. The laser winding all-in-one machine as claimed in claim 7, wherein a first rolling bearing is arranged between the first rotating shaft and the rubber roller rotating shaft so as to enable the first rotating shaft and the rubber roller rotating shaft to rotate independently, and a second rolling bearing is arranged between the second rotating shaft and the first rotating shaft so as to enable the second rotating shaft and the first rotating shaft to rotate independently.
9. The laser winding all-in-one machine of claim 1, wherein the cell winding mechanism comprises a winding fixing seat, a station changing turntable and a plurality of winding needles, the winding fixing seat is arranged on the mounting plate, the station changing turntable is rotatably arranged on the winding fixing seat and has a plurality of stations, and the plurality of winding needles are arranged on the station changing turntable at intervals and are driven by the station changing turntable to switch among the stations.
10. The laser winding all-in-one machine is characterized in that the laser cutting mechanism comprises a laser mounting seat, a laser cutter, a laser cutting roller and a dust collection structure, the laser mounting seat is arranged on the mounting plate, the laser cutting roller is rotatably arranged on the laser mounting seat and used for conveying pole pieces, the laser cutter is arranged on the laser mounting seat and used for cutting the pole pieces to form pole lugs, and the dust collection structure is arranged at the lower part of the laser mounting seat and located below the laser cutting roller and used for receiving and sucking away dust generated by cutting.
CN202110550416.0A 2021-05-20 2021-05-20 Laser winding all-in-one machine Pending CN113140805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110550416.0A CN113140805A (en) 2021-05-20 2021-05-20 Laser winding all-in-one machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110550416.0A CN113140805A (en) 2021-05-20 2021-05-20 Laser winding all-in-one machine

Publications (1)

Publication Number Publication Date
CN113140805A true CN113140805A (en) 2021-07-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110550416.0A Pending CN113140805A (en) 2021-05-20 2021-05-20 Laser winding all-in-one machine

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Country Link
CN (1) CN113140805A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113725473A (en) * 2021-11-04 2021-11-30 广州市易鸿智能装备有限公司 Lithium battery winding tab dislocation real-time correction system and method
CN114705140A (en) * 2022-03-29 2022-07-05 广州超音速自动化科技股份有限公司 Full-tab battery cell winding detection method, equipment and medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113725473A (en) * 2021-11-04 2021-11-30 广州市易鸿智能装备有限公司 Lithium battery winding tab dislocation real-time correction system and method
CN114705140A (en) * 2022-03-29 2022-07-05 广州超音速自动化科技股份有限公司 Full-tab battery cell winding detection method, equipment and medium
CN114705140B (en) * 2022-03-29 2023-08-22 广州超音速自动化科技股份有限公司 Full-tab cell winding detection method, full-tab cell winding detection equipment and medium

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