CN101557014B - Battery winding system and method thereof - Google Patents

Battery winding system and method thereof Download PDF

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Publication number
CN101557014B
CN101557014B CN2009101064122A CN200910106412A CN101557014B CN 101557014 B CN101557014 B CN 101557014B CN 2009101064122 A CN2009101064122 A CN 2009101064122A CN 200910106412 A CN200910106412 A CN 200910106412A CN 101557014 B CN101557014 B CN 101557014B
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pole piece
deceleration
length
cut
conveyer
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CN101557014A (en
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陈明强
王强
张东南
王俊丰
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Shenzhen Geesun Intelligent Technology Co Ltd
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Shenzhen Geesun Automation Technology Co Ltd
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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

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Abstract

The invention provides a battery winding system and a method thereof. The battery winding system comprises a winding device (300), a first transmission device (110), a second transmission device (210)and a control unit, wherein the first transmission device (110) comprises a first state monitoring device which sends detection information to the control unit; the second transmission device (210) comprises a second state monitoring device which sends the detection information to the control unit; and when the first state monitoring device or the second state monitoring device detects the abnormity of a first pole piece (120) or a second pole piece (220), the control unit only controls the first pole piece (120) or the second pole piece (220) which winds abnormally and cuts off the corresponding abnormal first pole piece (120) or second pole piece (220).

Description

A kind of battery winding system and method thereof
Technical field
The present invention relates to a kind of battery winding system and method thereof, relate in particular to a kind of circular lithium ion battery reel system and cut out control method synchronously.
Background technology
Lithium ion battery is state-of-the-art in the world at present commercialization secondary cell, along with the development of various electronic products, the demand of lithium ion battery presented increases situation rapidly, and this also has higher requirement to the performance and the production efficiency of lithium battery production equipment.The coiling of lithium ion battery cell is one of key link of lithium ion battery making, the diversity of electric core pole piece because the process complexity of battery has determined again to reel, in process of production the precision that cuts of pole piece is had higher requirement, cut precision and directly determined battery performance.In addition, owing to how can handle pole piece automatically with flaw, and the efficient qualified finished product of producing of trying one's best, also be the higher requirement that winding apparatus is proposed.
Summary of the invention
Technical problem to be solved by this invention at first is, a kind of battery winding system is provided, and this battery winding system should be able to be with the pole piece of cutting out of degree of precision, and has automatically the fault pole piece is carried out the respective handling ability.Next is, and is corresponding, and a kind of battery winding method is provided, and this method also should be able to be with the pole piece of cutting out of degree of precision, and has automatically the fault pole piece is carried out the respective handling ability.
The objective of the invention is to be achieved through the following technical solutions:
A kind of battery winding system, comprise: be used to drive first pole piece and the second pole piece tape transport with the coiler device of reeling, be used to transmit first pole piece to described coiler device and in the relevant position with first conveyer of its cut-out, be used to transmit second pole piece to described coiler device and in the relevant position with second conveyer of its cut-out, and, be used to the control unit of controlling this system works and can importing user instruction.
Wherein, described first conveyer comprises: first state monitoring apparatus that sends detection information to described control unit; Described second conveyer comprises: second state monitoring apparatus that sends detection information to described control unit.When detecting described first pole piece or second pole piece, described first state monitoring apparatus or second state monitoring apparatus occur unusual the time, the first unusual pole piece or second pole piece are only twined in described control unit control, and cut corresponding unusual described first pole piece or second pole piece.
Usually, winding process is normally, and first pole piece and second pole piece are reeled simultaneously, wherein, be distributed with lug on first pole piece and second pole piece respectively successively, and the spacing between the adjacent lug is certain.The coiling finished product of a standard requires following several condition at least: at first: the length of coiling is certain; Secondly, the distribution of lug also is normal on the pole piece, and promptly spacing is certain; In conjunction with above-mentioned 2 points, obviously, the number of lug also is certain; Once more, the position that last cut-out falls between adjacent two lugs of reeling is certain.
Alleged first state monitoring apparatus and second state monitoring apparatus can be by the monitoring of walking strip length to first pole piece and second pole piece in the technique scheme, and to the monitoring of lug, and carry out corresponding calculated and handle, at least can obtain identification to above-mentioned three conditions, when appearance is unusual, be meant the situation of completely violating above-mentioned arbitrary condition at least.When identifying unusual the time, then described battery winding system also can be made corresponding operation, to pick out substandard products, has guaranteed the quality of product.
Like this, this system should be able to be with the pole piece of cutting out of degree of precision, and has automatically the fault pole piece is carried out the respective handling ability.
Certainly, also can not get rid of the reason that other are arranged and cause the unusual of pole piece, also can further adopt the abnormality of monitoring other to judge the normal or unusual of pole piece.
Furthermore, described first state monitoring apparatus comprises: be used to detect the first tape transport device for detecting length of walking strip length of described first pole piece, and, be used to detect the first lug checkout gear of lug on described first pole piece;
Described second state monitoring apparatus comprises: be used to detect the second tape transport device for detecting length of walking strip length of described second pole piece, and, be used to detect the second lug checkout gear of lug on described second pole piece.
Wherein, walk strip length and be meant, pole piece under the drive of winding apparatus, the distance of advancing.
Furthermore, the described first tape transport device for detecting length comprises: first detects the runner and first pulse counter; The described first pole piece tape transport drives described first and detects the runner rotation, and when circumference of the described first detection runner rotation, described first pulse counter sends the pulse of specific quantity.
The described second tape transport device for detecting length comprises: second detects the runner and second pulse counter; The described second pole piece tape transport drives described second and detects the runner rotation, and when circumference of the described second detection runner rotation, described second pulse counter sends the pulse of specific quantity.
By abovementioned technology, because first circumferential length that detects the runner and the second detection runner is certain, the stroke that rotates on its circumference is identical with the strip length of walking of corresponding described first pole piece or second pole piece.And described first detect rotation that runner and second detects runner respectively with the pulse positive correlation of the record of first pulse counter and second pulse counter, like this, by the pulse that first pulse counter and second pulse counter are sent, then can obtain the strip length of walking of corresponding described first pole piece or second pole piece.
Furthermore, described first pulse counter and second pulse counter adopt respectively: the H40-8-3600-20-4 encoder.
For further the raising system is to the disposal ability of substandard products pole piece, described first state monitoring apparatus also comprises: the first Reflector recognition device is used to discern the Reflector that is set in advance on described first pole piece.Described second state monitoring apparatus also comprises: the second Reflector recognition device is used to discern the Reflector that is set in advance on described second pole piece.
Wherein, described Reflector for example comprises: in a whole volume pole piece, have some inferior pole piece section, to should the section pole piece, the user can set in advance corresponding Reflector.
The inferior reason of this pole piece can be not limited to three above-mentioned reasons, can be other any reasons, as long as it is inferior that the user thinks that this section pole piece has, be reluctant to use, can set corresponding Reflector,, and make corresponding action so that described battery winding system discerns, choosing this inferior section, and make full use of in the whole volume pole piece other qualified pole piece.
Furthermore, described Reflector is the colour band that is attached on described first pole piece or second pole piece; The described first Reflector recognition device and the second Reflector recognition device adopt respectively: the colour code identification sensor.
Adopt abovementioned technology, can either be convenient to the setting that the user carries out Reflector, also can be convenient to the easy difference of this system and go out this pole piece of inferior section.
Furthermore, described first conveyer also comprises: first small electromotor, be used for along the forward of the described first pole piece tape transport direction or oppositely, the cutting knife that drives on described first conveyer moves, make that the cutting knife of first pole piece is more accurate to move to the off-position that first pole piece is set.
In the time of operate as normal, because first pole piece and second pole piece are to reel at the same volume pin of coiler device simultaneously, at a high speed be wound up near the position that need cut off the time, in order to improve the progress of its cut-out, often need to slow down accordingly, just can stop, cut off.If make corresponding deceleration steps according to the data monitored of second state monitoring apparatus on described second pole piece, and make the words that stop step, then first pole piece is adjusted by moving of first small electromotor, to obtain accurate more off-position.
For example, for the first small electromotor moving long apart from take time, general off-position according to first pole piece, first small electromotor retreats certain-length earlier in winding process, make cutting knife move to off-position near, when the action of needs first small electromotor was adjusted, only need rotate very short distance just can find accurate off-position.
Furthermore, described control unit adopts and includes touch-screen and the cyclelog that is used to import user instruction, for example: PLC etc.
The present invention also provides a kind of battery winding method, comprises the steps:
The coiling step: coiler device drives, first pole piece that sends from first conveyer, and/or the second pole piece tape transport that sends from second conveyer is with coiling;
Cut off step: cut off described first pole piece or second pole piece;
Pole piece detects step: detect first pole piece and whether second pole piece is unusual, if normal, in the then described coiling step, twine first pole piece and second pole piece simultaneously, and when being wound up into particular length, carry out described cut-out step, cut off described first pole piece or second pole piece simultaneously; If unusual, in the then described coiling step, only twine this unusual pole piece, till this pole piece is normal, then carry out described cut-out step, cut off this unusual pole piece.
Adopt technique scheme, when the pole piece appearance is unusual, then can only twine the pole piece of this abnormal section, till this pole piece is normal, cut the pole piece of this abnormal section, so just can be automatically to the fault pole piece, promptly unusual pole piece carries out the respective handling ability.
Furthermore, described cut-out step comprises the steps:
Deceleration steps:, reduce the tape running speed that described coiler device drives when the pole piece that is driven by described coiler device during near the position that need cut off;
Stop step: the tape transport that described coiler device stops to drive;
Compensation process: move with the cutting knife of becoming better or reverse direction drives on first conveyer with the described first pole piece tape transport direction, to adjust to best off-position.
Adopt abovementioned technology, can obtain the position that pole piece is cut off more accurately.
In addition, in the time of operate as normal, because first pole piece and second pole piece are to reel at the same volume pin of coiler device simultaneously, at a high speed be wound up near the position that need cut off the time, in order to improve the progress of its cut-out, often need to slow down accordingly, just can stop, cut off.If make corresponding deceleration steps according to the data monitored of second state monitoring apparatus on described second pole piece, and make the words that stop step, then the cutting knife on first conveyer is adjusted by moving of first small electromotor, to obtain more and the more accurate approaching off-position of predefined off-position, the i.e. off-position of described the best to first pole piece.
Furthermore, total tape travel of walking of described deceleration steps is a set point, and this step comprises the steps:
First deceleration steps: described first pole piece or second pole piece are with V 1It is S that tape running speed enters length 1The default deceleration zone of deceleration first in, first default deceleration time t 1The interior deceleration, its deceleration acceleration is: a 1=2 (S 1-V 1t 1)/t 1 2
Second deceleration steps: described first pole piece or second pole piece are with V 2It is S that tape running speed enters length 2The default deceleration zone of deceleration second in, second default deceleration time t 2The interior deceleration, its deceleration acceleration is: a 2=2 (S 2-V 2t 2)/t 2 2
The 3rd deceleration steps: described first pole piece or second pole piece are with V 3It is S that tape running speed enters length 3The default deceleration zone of deceleration the 3rd in, the 3rd default deceleration time t 3The interior deceleration, its deceleration acceleration is: a 3=2 (S 3-V 3t 3)/t 3 2
Wherein, tape running speed is meant the speed that pole piece is advanced under the drive of winding apparatus.
Furthermore, described battery winding method also comprises:
Length protection step: monitor the strip length of walking of described first pole piece or second pole piece, when this length reaches preseting length, send alarm signal;
Pole piece fracture protection step: monitor whether broken belt of described first pole piece or second pole piece, if broken belt then send alarm signal.
For example, when the pole piece appearance was unusual, possible system can't correctly judge to cut off, and at this moment, with the very big electric core of diameter that rolls out, when carrying out the station conversion so again, is easy to bump disconnected volume pin.Adopt abovementioned technology, at first can prevent the generation of this situation by length restriction.
Secondly, when pole piece fracture naturally in winding process, after detecting, system will send alarm signal.This alarm signal not only can trigger shutdown, can also point out the user to handle accordingly.
Compared with prior art the invention has the advantages that, can be with the pole piece of cutting out of degree of precision, and have and automatically the fault pole piece is carried out its advantage of respective handling ability and mainly show: can also locate fast.0.2 finish in second winding speed is slowed down and stops to accurate position from maximum speed; And, the positioning accuracy height.Control precision can reach ± 0.5mm; Material can effectively utilize in addition, detects and detect in real time whether quality of pole piece in advance, and bad pole piece can be discerned, single automatically around; If any bad pole piece, the pole piece on bad one side can not have influence on the utilization of the normal pole piece in other one side, avoids the waste of pole piece in the pole piece of both sides.
Description of drawings
Fig. 1 is the structural representation of battery winding system embodiment of the present invention;
Fig. 2 is the schematic flow sheet of battery winding method embodiment of the present invention;
Fig. 3 is the schematic flow sheet of the embodiment of deceleration steps of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1, coiler device 300 is double structures, first pole piece and second pole piece are delivered to the 1# volume pin or the 2# volume pin of described coiler device 300, to realize the coiling to pole piece respectively by adopting first conveyer 110 and 210 feedings of second conveyer of manipulator.
The control unit of battery winding system is set up its controlling platform by Programmable Logic Controller (for example model is CP1H) and touch-screen (for example model is EVIEW).
In running, be the first tape transport device for detecting length 160 and the second tape transport device for detecting length 260 encoder and that detect roller of H40-8-3600-20-4 by having adopted model, measure the length of first pole piece 120 and second pole piece 220 respectively.System detects lug on first pole piece 120 and second pole piece 220 respectively by the first lug checkout gear 150 and the second lug checkout gear 250, when detecting lug, also will write down the position of the corresponding tape transport of this lug place pole piece earlier.
Described first conveyer 110 also comprises: first small electromotor 140 is used for along the forward of described first pole piece, 120 tape transport directions or oppositely, the cutting knife that drives on described first conveyer 110 moves.
In addition, also being respectively arranged with the employing model on described first conveyer 110 and second conveyer 210 is the first Reflector recognition device 130 and the second Reflector recognition device 230 of the color mark sensor of CZ-V21A.
As shown in Figure 2, after device initialize is finished, the manipulator of first conveyer 110 and second conveyer 210 clamping first pole piece 120 and second pole piece 220 is respectively delivered to pole piece on the 1# volume pin or 2# volume pin of described coiler device 300 by the left and right sides sequencing of setting, and rolls up the angle of a setting in advance.When pole piece was rolled on the volume pin, manipulator was got back to initial position, waits for next circulation material conveying.
The volume pin of described coiler device 300 detects whether post yellow gummed paper (yellow gummed paper is used for being attached to the position of pole piece tape splicing, is used to judge that this section pole piece is inferior pole piece) above the pole piece by color mark sensor in winding process.
When yellow adhesive tape when the ribbon sensor, battery winding system will detect this flag bit and state is preserved, and wait until that next circulation time will reel separately to the pole piece that posts yellow gummed paper separately, bad pole piece can be chosen separately by monovolume.
Described first conveyer 110 and two pole piece cutting knifes are housed and lug checkout gear (for example, model is FU-77TZ) above second conveyer 210 respectively.
When lug through out-of-date, the first lug checkout gear 150 or the second lug checkout gear 250 trigger the interrupt routine of PLC, the currency (being the position that lug is welded on pole piece) that interrupt routine will write down each lug when passing through.Every through a lug, interrupt routine will calculate the position between current lug and all lugs of front.In case when finding that the position of physical location and technique initialization is inconsistent, the fault-tolerant processing program is enabled by system.
The fault-tolerant processing program will be carried out following function: the position that cuts of oneself is looked in pole piece competition in both sides, promptly look for one section normal position before cutting, the place of incision that for example cuts off unusual pole piece between two adjacent lugs in, which pole piece finds the normal position of oneself earlier, to be as the criterion with this pole piece and start deceleration steps to position, and another pole piece then is provided with a monovolume sign, in next circulation, will reel separately to the pole piece that the monovolume sign is set separately, the both sides pole piece has all been got back to normal position again after monovolume is intact, and next again circulation just can directly be carried out normal procedure.
As shown in Figure 3, when also having certain-length, the position that cuts off from setting beginning to carry out deceleration steps.Interrupt the deceleration program by No. 3 counters, the volume needle speed is decelerated to a fixing low cruise speed (for example 0.1rec/s) from maximal rate.In low cruise, arrive preseting length, interrupt, and stop to roll up the coiling of pin so that produce accurately.
Total tape travel of walking of described deceleration steps is a set point, and this step comprises the steps:
First deceleration steps: described first pole piece or second pole piece are with V 1It is S that tape running speed enters length 1The default deceleration zone of deceleration first in, first default deceleration time t 1The interior deceleration, its deceleration acceleration is: a 1=2 (S 1-V 1t 1)/t 1 2
Second deceleration steps: described first pole piece or second pole piece are with V 2It is S that tape running speed enters length 2The default deceleration zone of deceleration second in, second default deceleration time t 2The interior deceleration, its deceleration acceleration is: a 2=2 (S 2-V 2t 2)/t 2 2
The 3rd deceleration steps: described first pole piece or second pole piece are with V 3It is S that tape running speed enters length 3The default deceleration zone of deceleration the 3rd in, the 3rd default deceleration time t 3The interior deceleration, its deceleration acceleration is: a 3=2 (S 3-V 3t 3)/t 3 2
Wherein, tape running speed is meant the speed that pole piece is advanced under the drive of winding apparatus.
Among the embodiment, satisfy S 1+ S 2+ S 3=70mm, S 1, S 2, S 3, t 1,, t 2,, t 3Logical carry out in advance setting by the user.
Can guarantee the locating accuracy that cuts after 0.1rec/s speed second by decelerating to: L=π dt.
Wherein, π=3.14; D is electric core diameter, 18mm<=diameter<=32mm, and t is the interruption time of implementation, t<5ms, the trueness error of gained maximum exists: L=3.14*32*0.1/100=± 0.5mm.
In addition, in the time of operate as normal, because first pole piece 120 and second pole piece 220 are to reel at the same volume pin of coiler device simultaneously, at a high speed be wound up near the position that need cut off the time, in order to improve the progress of its cut-out, often need to slow down accordingly, just can stop, cut off.If make corresponding deceleration steps according to the data monitored of second state monitoring apparatus on described second pole piece 220, and make the words that stop step, then first pole piece 120 is adjusted by the mobile corresponding cutting knife of first small electromotor 140, to obtain accurate more off-position, the i.e. off-position of described the best.
The tape transport device for detecting length can also play following effect in addition:
1, to the length protection of pole piece.For example, when the pole piece appearance was unusual, possible system can't correctly judge to cut off, and at this moment, with the very big electric core of diameter that rolls out, when carrying out the station conversion so again, is easy to bump disconnected volume pin.Adopt abovementioned technology, at first can prevent the generation of this situation by length restriction.
2, to the pole piece fracture defencive function of pole piece,, after detecting, system will send alarm signal when pole piece fracture naturally in winding process.This alarm signal not only can trigger shutdown, can also point out the user to handle accordingly.
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. battery winding system, comprise: be used to drive first pole piece (120) and second pole piece (220) tape transport with the coiler device (300) of reeling, be used to transmit first pole piece (120) to described coiler device (300) and in the relevant position with first conveyer (110) of its cut-out, be used to transmit second pole piece (220) to described coiler device (300) and in the relevant position with second conveyer (210) of its cut-out, and, be used to the control unit of controlling this system works and can importing user instruction; It is characterized in that,
Described first conveyer (110) comprising: first state monitoring apparatus that sends detection information to described control unit; Described second conveyer (210) comprising: second state monitoring apparatus that sends detection information to described control unit; When detecting described first pole piece (120) or second pole piece (220), described first state monitoring apparatus or second state monitoring apparatus occur unusual the time, unusual first pole piece (120) or second pole piece (220) are only twined in described control unit control, and cut corresponding unusual described first pole piece (120) or second pole piece (220).
2. battery winding system as claimed in claim 1 is characterized in that,
Described first state monitoring apparatus comprises: be used to detect the first tape transport device for detecting length (160) of walking strip length of described first pole piece (120), and, be used to detect the first lug checkout gear (150) that described first pole piece (120) is gone up lug;
Described second state monitoring apparatus comprises: be used to detect the second tape transport device for detecting length (260) of walking strip length of described second pole piece (220), and, be used to detect the second lug checkout gear (250) that described second pole piece (220) is gone up lug.
3. battery winding system as claimed in claim 2 is characterized in that,
The described first tape transport device for detecting length (160) comprising: first detects the runner and first pulse counter; Described first pole piece (120) tape transport drives described first and detects the runner rotation, and when circumference of the described first detection runner rotation, described first pulse counter sends the pulse of specific quantity;
The described second tape transport device for detecting length (260) comprising: second detects the runner and second pulse counter; Described second pole piece (220) tape transport drives described second and detects the runner rotation, and when circumference of the described second detection runner rotation, described second pulse counter sends the pulse of specific quantity.
4. battery winding system as claimed in claim 2 is characterized in that,
Described first state monitoring apparatus also comprises: the first Reflector recognition device (130) is used for discerning the Reflector that is set in advance on described first pole piece (120);
Described second state monitoring apparatus also comprises: the second Reflector recognition device (230) is used for discerning the Reflector that is set in advance on described second pole piece (220).
5. battery winding system as claimed in claim 4 is characterized in that, described Reflector is for being attached to the colour band on described first pole piece (120) or second pole piece (220); The described first Reflector recognition device (130) and the second Reflector recognition device (230) adopt respectively: the colour code identification sensor.
6. as the described battery winding system of arbitrary claim in the claim 1 to 5, it is characterized in that, described first conveyer (110) also comprises: first small electromotor (140), be used for along the forward of described first pole piece (120) tape transport direction or oppositely, the cutting knife that drives on described first conveyer (110) moves.
7. a battery winding method is characterized in that, comprises the steps:
The coiling step: coiler device (300) drives, first pole piece (120) that sends from first conveyer (110), and/or second pole piece (220) tape transport that sends from second conveyer (210) is with coiling;
Cut off step: cut off in described first pole piece (120) and second pole piece (220) at least one;
Pole piece detects step: detect first pole piece (120) and whether second pole piece (220) is unusual, if it is normal, in the then described coiling step, twine first pole piece (120) and second pole piece (220) simultaneously, and when being wound up into particular length, carry out described cut-out step, cut off described first pole piece (120) and second pole piece (220); If unusual, in the then described coiling step, only twine this unusual pole piece, till normal, carry out described cut-out step, only cut off this unusual pole piece.
8. battery winding method as claimed in claim 7 is characterized in that, described cut-out step comprises the steps:
Deceleration steps:, reduce the tape running speed that described coiler device (300) drives when the pole piece that is driven by described coiler device (300) during near the position that need cut off;
Stop step: the tape transport that described coiler device (300) stops to drive;
Compensation process: with described first pole piece (120) tape transport direction in the same way or the cutting knife that drives on first conveyer (110) of reverse direction move, to adjust to best off-position.
9. battery winding method as claimed in claim 8 is characterized in that, total tape travel of walking of described deceleration steps is a set point, and this step comprises the steps:
First deceleration steps: described first pole piece (120) or second pole piece (220) are with V 1It is S that tape running speed enters length 1The default deceleration zone of deceleration first in, first default deceleration time t 1The interior deceleration, its deceleration acceleration is: a 1=2 (S 1-V 1t 1)/t 1 2
Second deceleration steps: described first pole piece (120) or second pole piece (220) are with V 2It is S that tape running speed enters length 2The default deceleration zone of deceleration second in, second default deceleration time t 2The interior deceleration, its deceleration acceleration is: a 2=2 (S 2-V 2t 2)/t 2 2
The 3rd deceleration steps: described first pole piece (120) or second pole piece (220) are with V 3It is S that tape running speed enters length 3The default deceleration zone of deceleration the 3rd in, the 3rd default deceleration time t 3The interior deceleration, its deceleration acceleration is: a 3=2 (S 3-V 3t 3)/t 3 2
10. as the described battery winding method of arbitrary claim in the claim 7 to 9, it is characterized in that, also comprise:
Length protection step: monitor the strip length of walking of described first pole piece (120) or second pole piece (220), when this length reaches preseting length, then send alarm signal;
Pole piece fracture protection step: monitor whether broken belt of described first pole piece (120) or second pole piece (220), in the time of broken belt, then send alarm signal.
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KR101223629B1 (en) * 2010-09-03 2013-01-17 삼성에스디아이 주식회사 Winding apparatus, miss winding inspection system, and miss winding inspection method
CN102290608B (en) * 2011-07-11 2013-12-25 深圳市吉阳自动化科技有限公司 Square winder variable-speed winding system and method
CN102916226B (en) * 2012-09-20 2016-06-22 东莞新能源科技有限公司 The method for winding of square power lithium ion battery
CN105537154B (en) * 2015-12-31 2018-01-05 珠海华冠科技股份有限公司 Defective product pole piece monovolume mechanism
CN110329832B (en) * 2019-06-28 2021-06-08 广东利元亨智能装备股份有限公司 Speed reduction cutting control method and control device
CN111309063B (en) * 2020-02-27 2021-04-06 广东利元亨智能装备股份有限公司 Unreeling speed control method and device, electronic equipment and storage medium
CN118299636A (en) * 2023-01-04 2024-07-05 宁德时代新能源科技股份有限公司 Battery cell winding system and battery cell winding method
CN116093413B (en) * 2023-04-07 2023-09-01 江苏时代新能源科技有限公司 Control method, system, equipment, storage medium and program product for cell manufacturing process

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