CN101478060A - Square lithium ionic cell winding machine - Google Patents

Square lithium ionic cell winding machine Download PDF

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Publication number
CN101478060A
CN101478060A CNA2008102421527A CN200810242152A CN101478060A CN 101478060 A CN101478060 A CN 101478060A CN A2008102421527 A CNA2008102421527 A CN A2008102421527A CN 200810242152 A CN200810242152 A CN 200810242152A CN 101478060 A CN101478060 A CN 101478060A
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CN
China
Prior art keywords
volume
pin
cam
optical code
winding
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Granted
Application number
CNA2008102421527A
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Chinese (zh)
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CN101478060B (en
Inventor
许小菊
王胜玲
蔡实艳
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Shenzhen Yinghe Technology Co Ltd
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Shenzhen Yinghe Technology Co Ltd
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Priority to CN2008102421527A priority Critical patent/CN101478060B/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a square Li-ion battery winding machine, which comprises a winding mechanism and a work position transition mechanism, wherein the work position transition mechanism comprises a winding core pressing wheel and a cam drive device; the power output end of the cam drive device is coupled with the winding core pressing wheel; the winding core pressing wheel is arranged on a core; and the cam drive device is matched with the winding needle to synchronously rotate so as to drive the winding core pressing wheel to apply a stable pressure on the winding core on the winding needle. The square Li-ion battery winding machine can achieve synchronous rotation of the cam drive device and the winding needle, thereby driving the winding core pressing wheel to apply the stable pressure on the winding core on the winding needle. By controlling the winding core pressing wheel, the square Li-ion battery winding machine can ensure winding core quality and achieve high-efficiency stable production.

Description

Square lithium ionic cell winding machine
Technical field
The present invention relates to battery winder, especially a kind of square power lithium-ion battery up-coiler.
Background technology
Acceleration along with the electric vehicle research and development, high-capacity power square electrokinetic cell is also thereupon by the development and production of institute of increasing battery production producer, because lithium ion battery critical material technology and battery technology progress was rapid in recent years, the research of lithium-ion-power cell becomes the main flow research direction gradually.At present, most of lithium-ion-power cell producer is wound as the master with manual, and winding speed is slow and be difficult for guaranteeing its consistency, has reduced efficient greatly and improved production cost for manufacturer.
Summary of the invention
The technical problem that mainly will solve of the present invention is exactly at the deficiencies in the prior art, and a kind of square lithium ionic cell winding machine is provided, and can control pinch roller automatically, effectively to volume core pressure, thereby guarantee volume core quality, realizes efficient stable production.
For achieving the above object, the present invention is by the following technical solutions:
A kind of square lithium ionic cell winding machine, comprise winding mechanism and station switching mechanism, it is characterized in that, described station switching mechanism comprises volume core pinch roller and cam driving gear, the clutch end of described cam driving gear is coupled to described volume core pinch roller, described volume core pinch roller is pressed on the volume core, and described cam driving gear matches with the volume pin, and ground rotates synchronously so that described volume core pinch roller applies steady pressure to the volume core on the volume pin.
Described volume core pinch roller also comprises second line slide rail that is provided with perpendicular to described winding mechanism, slide block and the cylinder that links to each other with described slide block are installed on described second line slide rail, can drive the described second line slide rail reciprocating motion by the fulcrum that is coupled with described slide block during the rotation of described cam, thereby drive described volume core pinch roller with respect to the center reciprocating motion of volume core.
Described cam driving gear comprises motor, driving shaft and cam, and described motor drives cam rotation by described driving shaft, the motion of the described volume core of described cam driven pinch roller.
Described cam driving gear comprises the former point detection device of cam, and the former point detection device of described cam is used to detect the cam origin position of described cam driving gear, and described cam driving gear is according to its output of the corresponding adjustment of testing result.
The former point detection device of described cam comprises the 3rd photoelectric sensor and the 3rd optical code disk, and described the 3rd optical code disk is provided with in the mode with the coaxial rotation of described cam, and described the 3rd photoelectric sensor cooperates described the 3rd optical code disk setting.
Described winding-structure comprise with may command close from the first volume pin that is provided with of mode, second volume pin and the coiling drive unit, at least one is coupled to described coiling drive unit in described first volume pin and the described second volume pin, described winding-structure also comprises the former point detection device of volume pin angle, the former point detection device of described volume pin angle is coupled to the described first He or second volume pin and the described coiling drive unit respectively, be used to detect described first and or the second volume pin whether be in origin position, and according to testing result control described coiling drive unit adjust described first and or the position of rotation of the second volume pin so that the two threading a needle and cooperating smoothly during drawn needle.
The former point detection device of described volume pin angle comprises first photoelectric sensor, first optical code disk, second photoelectric sensor and second optical code disk, described first optical code disk is provided with in the mode with described first volume coaxial needle rotation, described first photoelectric sensor cooperates the described first optical code disk setting, is used for detecting described first volume pin by described first optical code disk and whether is in origin position; Described second optical code disk is provided with in the mode with the described second volume coaxial needle rotation, and described second photoelectric sensor cooperates the described second optical code disk setting, is used for detecting the described second volume pin by described second optical code disk and whether is in origin position.
Described winding mechanism also comprises positioning disk and alignment pin, described positioning disk is coupled with the described second volume pin in a fixed manner, described alignment pin with described positioning disk controlled join or from mode be provided with, when described alignment pin and described positioning disk join, secure the above positioning disk and and then stop the described second volume pin to rotate.
Described alignment pin is provided with can order about the mode of doing straight reciprocating motion, and described positioning disk has the breach that the front end with alignment pin is complementary, and reels when separating when described first volume pin and described second, and described alignment pin is stuck in the described breach.
Also comprise: be used for to described winding mechanism unreel barrier film membrane unwinding mechanism, be used to derive positive and negative plate to the pole piece guiding mechanism of described winding mechanism, be used for cutting agency to the volume core of spooling pastes the subsides stop adhesive mechanism of stop adhesive and the volume core that will spool unloads.
Beneficial technical effects of the present invention is:
According to square lithium ionic cell winding machine of the present invention, station switching mechanism comprises volume core pinch roller and cam driving gear, cam driving gear rotates synchronously with the volume pin, make volume core pinch roller stable to volume core applied pressure under the driving of cam driving gear, thereby guaranteed volume core quality, realized efficient stable production.
Description of drawings
Fig. 1 is the winding mechanism schematic diagram of square lithium ionic cell winding machine of the present invention;
Front view when Fig. 2 reels for square lithium ionic cell winding machine of the present invention;
The front view of Fig. 3 during for square lithium ionic cell winding machine rubberizing of the present invention.
Feature of the present invention and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
Embodiment
Please refer to Fig. 1 to Fig. 3, according to embodiments of the invention, square lithium ionic cell winding machine comprises winding mechanism, station switching mechanism, pastes stop adhesive mechanism, membrane unwinding mechanism, pole piece guiding mechanism, cutting agency, frame (not shown) and control device (not shown).
Winding mechanism comprises first volume pin, second volume pin and the coiling drive unit, first and second volume pin may command close from mode be provided with, first volume pin is coupled to the coiling drive unit, also further be provided with the former point detection device of volume pin angle, the former point detection device of volume pin angle is coupled to first, second volume pin and coiling drive unit respectively.When threading a needle with drawn needle, the former point detection device of volume pin angle detects first, second volume pin and whether is in origin position, and adjusts the position of rotation of first, second volume pin according to testing result control coiling drive unit.In the preferred embodiment, the suitable location that winding mechanism realizes rolling up pin by position fixing on the corresponding optical code disk of photosensor senses.
As shown in Figure 1, in the preferred embodiment, winding mechanism comprises motor 113, first shaft coupling 114, first photoelectric sensor 115, first optical code disk 116, first needle handle 118, first pin 119, first volume pin 120, the second volume pin 121, second pin 122, second needle handle 123, second photoelectric sensor 125 and second optical code disk 126.Wherein, motor 113 serves as the coiling drive unit, shaft coupling 114 1 ends are connected with motor 113, one end is connected with first needle handle 118, first volume pin 120 is fixed on first needle handle 118 by first pin 119, motor 113 can drive first needle handle 118 by shaft coupling 114, and then drive first volume pin 120 rotates; First optical code disk 116 is fixed on first needle handle 118, has the breach that is used for optoelectronic induction on it, first photoelectric sensor 115 is arranged at first optical code disk, 116 tops, by the breach on first photoelectric sensor, 115 inductions, first optical code disk 116, can make first volume pin 120 be positioned dead-center position, i.e. the position of the breach of first optical code disk 116 up the time.Similarly, the second volume pin 121 is fixed on second needle handle 123 by second pin 122, second optical code disk 126 is fixed on second needle handle 123, and the breach of sensing on second optical code disk 126 by second photoelectric sensor 125 is positioned the second volume pin 121 on the dead-center position.
In the preferred embodiment, first needle handle 118 and second needle handle 123 all are fixed on two slides 133,134 that are installed on first line slide rail 131,132, and by drive unit (not shown) for example two slides of air cylinder driven 133,134 on first line slide rail 131,132, do straight reciprocating motion, it is whole or come by a volume pin overall separation to make the first volume pin 120 and the second volume pin 121 close up into volume pin, to realize the threading a needle of whole winding mechanism, drawn needle action.By control with adjust first, second volume pin to suitable position of rotation, then can make the first volume pin and the second volume pin thread a needle and can cooperate smoothly during drawn needle, thereby guarantee to thread a needle and well the carrying out of drawn needle.
More preferably, winding mechanism also comprises positioning disk 127, alignment pin 128, guide pin bushing 129 and cylinder 130.Wherein, guide pin bushing 129 is installed on first cylinder 130, and alignment pin 128 is fixed on the guide pin bushing 129, and positioning disk 127 is installed on the afterbody of needle handle 123, and positioning disk 127 has the breach that is complementary with alignment pin 128.First cylinder 130 can drive guide pin bushing 129 and take alignment pin 128 and make front-rear reciprocation movement, when second reels 121 drawn needles, first cylinder 130 drives alignment pin 128 and travels forward fast, and alignment pin 128 blocked in the breach of positioning disk 127, the second volume pin 121 can not be rotated in the drawn needle process, guarantee well carrying out of drawn needle.
Shown in Fig. 2,3, station switching mechanism is arranged on the upper and lower of winding mechanism coiling portion, comprises the barrier film clip wheel, barrier film briquetting and the barrier film cutting knife that are oppositely arranged up and down and volume core pinch roller, and its integral body can the shift position, can realize that barrier film changes pin.
In the preferred embodiment, station switching mechanism comprises second cylinder 103, the first barrier film clip wheel 104, the 3rd cylinder 105, the first barrier film briquetting 106, four-cylinder 107, the second barrier film clip wheel 108, the 5th cylinder 109, the second barrier film briquetting 110, the 6th cylinder 111 and hot knife 112.The second, four-cylinder 103,107 can drive first and second barrier film clip wheel 104,108 and is in vertical reciprocating motion, three, five cylinders 105,109 can drive first and second barrier film briquetting 106,110 and are in vertical reciprocating motion, and the 6th cylinder 111 can drive hot knife 112 and be in vertical reciprocating motion.During work, first and second barrier film clip wheel 104,108 is clamped the front end of barrier film, and first and second barrier film briquetting 106,110 is pushed down the afterbody of barrier film; Volume core pinch roller 317 can be pushed down the tail end of barrier film, prepares for pasting the termination adhesive tape; Line slide rail drives winding mechanism and moves to rubberizing mechanism under the driving of cylinder; Hot knife 112 cuts off barrier film and barrier film is carried out every the glue thermal weld; The volume core clamped by following feed collet so that the extraction of volume pin; Line slide rail drives winding mechanism once more and gets back to the position of reeling under the driving of cylinder, thread a needle and rotate, and the barrier film front end is wrapped in the volume wire surface, provides condition for reel next time.
As Figure 1-3, station switching mechanism also comprises cam driving gear, in the preferred embodiment, cam driving gear comprises second motor 309, second shaft coupling 310, driving shaft 313, cam 314 and fulcrum 315, volume core pinch roller comprises on second line slide rail, 316, the second line slide rails 316 cylinder 319 is installed, wherein, second shaft coupling, 310 1 ends are connected with the line shaft of second motor 309, and the other end is connected with an end of driving shaft 313; The other end of driving shaft 313 is fixed on the cam 314, second motor 309 can order about cam 314 by driving shaft 313 and rotate, fulcrum 315 is fixed on second line slide rail 316 by slide block 318, volume core pinch roller 317 is installed in the end of cylinder 319 near the volume core, and integral installation is on second line slide rail 316.Cam driving gear preferably also comprises the former point detection device of cam angle degree, the former point detection device of cam angle degree preferably includes the 3rd optical code disk 312 and the 3rd photoelectric sensor 311, the 3rd optical code disk 312 is fixed on the driving shaft 313, and senses the initial point of the gap position control cam 314 on the 3rd optical code disk 312 by the 3rd photoelectric sensor 311.During work, cam driving gear matches with the volume pin, and ground is synchronous to rotate, irregular movement by cam 314, driving fulcrum 315 is in vertical reciprocating motion, move both vertically and drive second line slide rail 316 by moving both vertically of fulcrum 315, cylinder 319 and volume core pinch roller 317 move both vertically simultaneously, make the 317 energy flexible operations of volume core pinch roller when core 400 is in diverse location thereby be convenient to roll up, and are unlikely to 400 compressive strains of volume core.
Shown in Fig. 2,3, pasting stop adhesive mechanism is made up of the 7th cylinder 301, rubberizing wheel 302 etc., adhesive tape is adsorbed on the rubberizing wheel 302, driving rubberizing wheel 302 by the 7th cylinder 301 moves downward, contact with volume core 400, and,, rolls up on the core 400 by adhesive tape thereby being attached to accurately by rolling up pin 120,121 drive volume cores 400 rotations and making 302 rotations of rubberizing wheel.
Shown in Fig. 2,3, membrane unwinding mechanism comprises first barrier film material volume, 201, second barrier film material volume 204 and a plurality of transition wheel 202,203,205,206.
Shown in Fig. 2,3, cutting agency comprises compositions such as feed collet 401, following feed collet 402, fixed head 403, cylinder 404, motor 406, belt 407; Following feed collet 402 is fixed on the fixed head 403, and fixed head 403 is fixed on the line slide rail 405, and does straight reciprocating motion by cylinder 404 driving fixed heads 403 on line slide rail 405; Cylinder 404 drives feed collet 402 do clampings down or unclamps action; During blanking, cylinder 404 driving fixed heads 403 will be gone up feed collet 401, feed collet 402 is delivered on the volume core 400 down, clamps volume core 400; During reposition, following feed collet 402 unclamps, and will roll up core 400 and put to belt 407, and 407 motions of motor 406 driving belts will be rolled up core and be transported.
Shown in Fig. 2,3, the pole piece guiding mechanism preferably includes first guide plate 101 and second guide plate 102, and first and second guide plate front end is provided with a lot of suction holes, entrusts and adsorbs pole piece, and pole piece is imported coiling portion.Preferably, first and second guide plate both sides respectively are provided with side plate (not shown), in order to draw the importing direction of positive plate.Regulate the side plate position, can adapt to the pole piece of different in width.
Frame can be welded by shaped steel, and adopts the wallboard mounting means, to guarantee whole rigidity and stability.
Control system can adopt programmable logic controller (PLC) (PLC), and can adjust the coiling parameter by man-machine interface.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (10)

1. square lithium ionic cell winding machine, comprise winding mechanism and station switching mechanism, it is characterized in that, described station switching mechanism comprises volume core pinch roller and cam driving gear, the clutch end of described cam driving gear is coupled to described volume core pinch roller, described volume core pinch roller is pressed on the volume core, and described cam driving gear matches with the volume pin, and ground rotates synchronously so that described volume core pinch roller applies steady pressure to the volume core on the volume pin.
2. square lithium ionic cell winding machine as claimed in claim 1, it is characterized in that, described volume core pinch roller comprises second line slide rail that is provided with perpendicular to described winding mechanism, slide block and the cylinder that links to each other with described slide block are installed on described second line slide rail, described cam driving gear drives the described second line slide rail reciprocating motion by the fulcrum that is coupled with described slide block, thereby drives the center reciprocating motion of described volume core pinch roller with respect to the volume core.
3. square lithium ionic cell winding machine as claimed in claim 1 is characterized in that described cam driving gear comprises motor, driving shaft and cam, and described motor drives cam rotation by described driving shaft, the motion of the described volume core of described cam driven pinch roller.
4. square lithium ionic cell winding machine as claimed in claim 1, it is characterized in that, described cam driving gear comprises the former point detection device of cam, the former point detection device of described cam is used to detect the cam origin position of described cam driving gear, and described cam driving gear is according to its output of the corresponding adjustment of testing result.
5. square lithium ionic cell winding machine as claimed in claim 4, it is characterized in that, the former point detection device of described cam comprises the 3rd photoelectric sensor and the 3rd optical code disk, described the 3rd optical code disk is provided with in the mode with the coaxial rotation of described cam, and described the 3rd photoelectric sensor cooperates described the 3rd optical code disk setting.
6. as each described square lithium ionic cell winding machine of claim 1 to 5, described winding-structure comprise with may command close from the first volume pin that is provided with of mode, second volume pin and the coiling drive unit, at least one is coupled to described coiling drive unit in described first volume pin and the described second volume pin, it is characterized in that, described winding-structure also comprises the former point detection device of volume pin angle, the former point detection device of described volume pin angle is coupled to the described first He or second volume pin and the described coiling drive unit respectively, be used to detect described first and or the second volume pin whether be in origin position, and according to testing result control described coiling drive unit adjust described first and or the position of rotation of the second volume pin so that the two threading a needle and cooperating smoothly during drawn needle.
7. square lithium ionic cell winding machine as claimed in claim 6, it is characterized in that, the former point detection device of described volume pin angle comprises first photoelectric sensor, first optical code disk, second photoelectric sensor and second optical code disk, described first optical code disk is provided with in the mode with described first volume coaxial needle rotation, described first photoelectric sensor cooperates the described first optical code disk setting, is used for detecting described first volume pin by described first optical code disk and whether is in origin position; Described second optical code disk is provided with in the mode with the described second volume coaxial needle rotation, and described second photoelectric sensor cooperates the described second optical code disk setting, is used for detecting the described second volume pin by described second optical code disk and whether is in origin position.
8. square lithium ionic cell winding machine as claimed in claim 6, it is characterized in that, described winding mechanism also comprises positioning disk and alignment pin, described positioning disk is coupled with the described second volume pin in a fixed manner, described alignment pin with described positioning disk controlled join or from mode be provided with, when described alignment pin and described positioning disk join, secure the above positioning disk and and then stop the described second volume pin to rotate.
9. square lithium ionic cell winding machine as claimed in claim 7, it is characterized in that, described alignment pin is provided with can order about the mode of doing straight reciprocating motion, described positioning disk has the breach that the front end with alignment pin is complementary, reel when separating when described first volume pin and described second, described alignment pin is stuck in the described breach.
10. as each described square lithium ionic cell winding machine of claim 1 to 5, it is characterized in that, also comprise: be used for to described winding mechanism unreel barrier film membrane unwinding mechanism, be used to derive positive and negative plate to the pole piece guiding mechanism of described winding mechanism, be used for cutting agency to the volume core of spooling pastes the subsides stop adhesive mechanism of stop adhesive and the volume core that will spool unloads.
CN2008102421527A 2008-12-30 2008-12-30 Square lithium ionic cell winding machine Active CN101478060B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101894976A (en) * 2010-07-02 2010-11-24 深圳市赢合科技有限公司 Cell winding device
CN101834314B (en) * 2010-01-27 2012-07-04 深圳市赢合科技股份有限公司 Winding device of battery electric core
CN102931440A (en) * 2012-07-23 2013-02-13 荆门市恒生源电子科技有限公司 Lithium iron phosphate battery core package large-width winding machine
CN104009249A (en) * 2014-06-05 2014-08-27 深圳市赢合科技股份有限公司 Reeling machine
CN106058144A (en) * 2016-07-06 2016-10-26 深圳市赢合科技股份有限公司 Penetrating needle moving workstation synchronizing mechanism of pole piece processing equipment
CN106876771A (en) * 2015-11-10 2017-06-20 三星Sdi株式会社 For the equipment of rolled electrode component
CN111082130A (en) * 2020-01-14 2020-04-28 杨学锁 Flexible current collector winding core of lithium ion battery, current collector manufacturing process and winding core manufacturing process
CN112635849A (en) * 2020-12-23 2021-04-09 深圳市言九电子科技有限公司 Production equipment of coiled lithium ion battery and manufacturing method thereof
CN113035597A (en) * 2021-03-05 2021-06-25 四川曦鸿电子科技有限公司 Winding equipment of capacitor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101834314B (en) * 2010-01-27 2012-07-04 深圳市赢合科技股份有限公司 Winding device of battery electric core
CN101894976A (en) * 2010-07-02 2010-11-24 深圳市赢合科技有限公司 Cell winding device
CN101894976B (en) * 2010-07-02 2012-10-03 深圳市赢合科技股份有限公司 Cell winding device
CN102931440A (en) * 2012-07-23 2013-02-13 荆门市恒生源电子科技有限公司 Lithium iron phosphate battery core package large-width winding machine
CN102931440B (en) * 2012-07-23 2014-07-30 荆门市恒生源电子科技有限公司 Lithium iron phosphate battery core package large-width winding machine
CN104009249A (en) * 2014-06-05 2014-08-27 深圳市赢合科技股份有限公司 Reeling machine
CN106876771A (en) * 2015-11-10 2017-06-20 三星Sdi株式会社 For the equipment of rolled electrode component
CN106058144A (en) * 2016-07-06 2016-10-26 深圳市赢合科技股份有限公司 Penetrating needle moving workstation synchronizing mechanism of pole piece processing equipment
CN106058144B (en) * 2016-07-06 2018-09-07 深圳市赢合科技股份有限公司 A kind of shifting station lazy-tongs of threading a needle of pole piece process equipment
CN111082130A (en) * 2020-01-14 2020-04-28 杨学锁 Flexible current collector winding core of lithium ion battery, current collector manufacturing process and winding core manufacturing process
CN112635849A (en) * 2020-12-23 2021-04-09 深圳市言九电子科技有限公司 Production equipment of coiled lithium ion battery and manufacturing method thereof
CN112635849B (en) * 2020-12-23 2021-11-09 深圳市言九电子科技有限公司 Production equipment of coiled lithium ion battery and manufacturing method thereof
CN113035597A (en) * 2021-03-05 2021-06-25 四川曦鸿电子科技有限公司 Winding equipment of capacitor

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