CN109301352A - Tab dislocation control method and winding device - Google Patents
Tab dislocation control method and winding device Download PDFInfo
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- CN109301352A CN109301352A CN201710608709.3A CN201710608709A CN109301352A CN 109301352 A CN109301352 A CN 109301352A CN 201710608709 A CN201710608709 A CN 201710608709A CN 109301352 A CN109301352 A CN 109301352A
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- pole piece
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- adjustment portion
- angle value
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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
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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- 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
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- 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
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Abstract
The application relates to a tab dislocation control method and a winding device. The control method comprises the following steps: step S10, obtaining the first timing zero point to T of the winding needle1The first angle value theta rotated by the time1Said T is1The time is the time when the first tab to be wound on the winding pin is detected, and step S20 is executed to determine the first angle value θ1Whether it is equal to the first preset value theta01If so, repeating the step S10, otherwise, proceeding to the step S31, step S31, adjusting the first pressure applied to the first pole piece, the action direction of the first pressure is vertical to the first pole piece. The method can enable the first pole lug to generate backward or forward offset, so that the dislocation phenomenon of the first pole lug is controlled.
Description
Technical field
This application involves energy storage device manufacturing technology field more particularly to tab dislocation control method and winding devices.
Background technique
In order to improve the energy density of electrode assembly, usually the size of electrode assembly is done relatively large.For winding
For the electrode assembly of formula, then need to increase the circle number of pole piece coiling, to improve the energy density of coiled electrode assemblies.
In general, the part of uncoated active material slurry forms tab through cutting on pole piece, in the winding process of pole piece,
Each tab is stacked together.However, tab just will appear when being laminated to be substantially misaligned now when the windings of pole piece increase
As.
Summary of the invention
This application provides a kind of tab dislocation control method and winding devices, can improve the inconsistent phenomenon of tab.
The first aspect of the application provides a kind of tab dislocation control method, comprising:
Step S10 obtains volume needle from the first time zero to T1The first angle value θ that moment is turned over1, the T1Moment
For this moment for detecting the first tab that will be wound in needle, and/or
Volume needle is obtained from the second time zero to T2The second angle value θ that moment is turned over2, the T2Moment is to detect
This moment of the second tab of needle will be wound in;
Step S20 judges the first angle value θ1Whether the first preset value θ is equal to01, if so, step S10 is repeated,
Conversely, S31 is entered step, and/or
Judge the second angle value θ2Whether the second preset value θ is equal to02, if so, step S10 is repeated, conversely, into
Step S32;
Step S31 adjusts the first pressure for being applied to the first pole piece, the action direction of the first pressure and the first pole piece
Vertically;
Step S32 adjusts the second pressure for being applied to the second pole piece, the action direction of the second pressure and the second pole piece
Vertically.
According to an alternative embodiment, after the step S20 further include:
Step S22 judges the first angle value θ1Whether less than the first preset value θ01, if so, S41 is entered step,
Conversely, S51 is entered step, and/or
Judge the second angle value θ2Whether less than the second preset value θ02, if so, S42 is entered step, conversely, into
Step S52;
Step S41 reduces the first pressure;
Step S42 reduces the second pressure;
Step S51 increases the first pressure;
Step S52 increases the second pressure.
According to an alternative embodiment, the step S41 further include: increase the tension of the first pole piece, and/or
The step S42 further include: increase the tension of the second pole piece.
According to an alternative embodiment, the step S51 further include: reduce the tension of the first pole piece, and/or
The step S52 further include: reduce the tension of the second pole piece.
The second aspect of the application provides a kind of winding device, which uses tab described in any of the above embodiments
Misplace control method, comprising:
First processing unit, for obtaining volume needle from the first time zero to T1The first angle value θ that moment is turned over1, and
For judging the first angle value θ1Whether the first preset value θ is equal to01, the T1Moment is to detect that volume needle will be wound in
The first tab this moment;
First test section, for incuding the first tab that will be wound on needle;And
First pressure adjustment portion, for adjusting the first pressure for being applied to the first pole piece, the effect side of the first pressure
To vertical with first pole piece,
First processing unit is communicated to connect with first test section and the first pressure adjustment portion respectively,
And/or
Second processing portion, for obtaining volume needle from the second time zero to T2The second angle value θ that moment is turned over2, and
For judging the second angle value θ2Whether the second preset value θ is equal to0 2, the T2Moment is to detect and will be wound in
This moment of second tab of needle;
Second test section, for incuding the second tab that will be wound on needle;And
Second pressure adjustment portion, for adjusting the second pressure for being applied to the second pole piece, the effect side of the second pressure
To vertical with second pole piece,
The second processing portion is communicated to connect with second test section and the second pressure adjustment portion respectively.
According to an alternative embodiment, further includes:
First judging part, for judging the first angle value θ1Whether less than the first preset value θ01, and
First tension adjustment portion, as first angle value θ1Less than the first preset value θ01When, first tension adjustment
Portion's increase is applied to the tension of the first pole piece;As first angle value θ1Greater than the first preset value θ01When, first tension
Adjustment portion reduces the tension for being applied to the first pole piece,
First judging part and first tension adjustment portion are communicated to connect with first processing unit.
According to an alternative embodiment, further includes:
Second judging part, for judging the second angle value θ2Whether less than the second preset value θ02, and
Second tension adjustment portion, as second angle value θ2Less than the second preset value θ02When, second tension adjustment
Portion's increase is applied to the tension of the second pole piece;As second angle value θ2Greater than the second preset value θ02When, second tension
Adjustment portion reduces the tension for being applied to the second pole piece,
Second judging part and second tension adjustment portion are communicated to connect with the second processing portion.
According to an alternative embodiment, first test section, the first pressure adjustment portion and first tension
Adjustment portion is successively arranged along the extending direction of first pole piece, and first test section than other components closer to the volume
Needle.
According to an alternative embodiment, the first pressure adjustment portion includes be respectively arranged at the first pole piece two sides first
Cavity plate and the first punch-pin, first cavity plate and first punch-pin cooperate, to apply first pressure to first pole piece
Power,
And/or
The second pressure adjustment portion includes the second cavity plate and the second punch-pin for being respectively arranged at the second pole piece two sides, described
Second cavity plate and second punch-pin cooperate, to apply the second pressure to second pole piece.
According to an alternative embodiment, at least one of first test section and second test section include photoelectricity
Sensor.
Technical solution provided by the present application can achieve it is following the utility model has the advantages that
This application provides a kind of tab dislocation control method, this method passes through the first angle that the volume needle got turns over
Value θ1, and by first angle value θ1With the first preset value θ01Compare to judge that tab whether there is inconsistent phenomenon, if first jiao
Angle value θ1The θ compared with the first preset value01Equal, then the first tab that explanation will be wound in needle does not occur inconsistent phenomenon, such as
Fruit first angle value θ1The θ compared with the first preset value01There are differences, then illustrate that there are inconsistent phenomenons for the first tab, at this point it is possible to
The first pressure of the first pole piece is applied to by adjusting, so that the position of the first tab generates offset to the direction of anticipation, thus
So that the dislocation of the first tab is corrected.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
Application.
Detailed description of the invention
Fig. 1 is the flow chart of the first embodiment of the first tab provided by the embodiments of the present application dislocation control method;
Fig. 2 is the flow chart of the second embodiment of the first tab provided by the embodiments of the present application dislocation control method;
Fig. 3 is the flow chart of the 3rd embodiment of the first tab provided by the embodiments of the present application dislocation control method;
Fig. 4 is the flow chart of the fourth embodiment of the first tab provided by the embodiments of the present application dislocation control method;
Fig. 5 is the flow chart of one embodiment of the second tab provided by the embodiments of the present application dislocation control method;
Fig. 6 is the stream of one embodiment of the first tab provided by the embodiments of the present application and the second tab dislocation control method
Cheng Tu;
Fig. 7 is the schematic diagram of winding device provided by the embodiments of the present application.
Appended drawing reference:
1- winding device;
The first test section of 11-;
12- first pressure adjustment portion;
The first cavity plate of 12a;
The first punch-pin of 12b;
13- volumes of needle;
The first tension adjustment of 14- portion;
11 '-the second test sections;
12 '-second pressure adjustment portions;
14 '-the second tension adjustment portions;
15- the first diaphragm coiled strip roller;
16- the second diaphragm coiled strip roller;
17- the first membrane tension adjustment portion;
18- the second membrane tension adjustment portion;
The first pole piece of 21-;
The second pole piece of 22-.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Specific embodiment
The application is described in further detail below by specific embodiment and in conjunction with attached drawing.
As shown in Figure 1, tab dislocation control method is for alleviating this application provides a kind of tab dislocation control method
The generation of tab inconsistent phenomenon, it is ensured that tab Relatively centralized after stacking, neat.
By taking the first tab as an example, which is specifically included:
Step S10 obtains volume needle from the first time zero to T1The first angle value θ that moment is turned over1, wherein T1Moment
For this moment for detecting the first tab that will be wound in needle.
Under normal conditions, the first tab is formed on the first pole piece by way of cross cutting, the every rotation of volume needle one week, accordingly
First pole piece of length has then been wound on volume needle, and the first pole piece of the corresponding length may include first tab,
It may include two the first tabs, after winding, each first tab is stacked.
It is readily comprehensible, during rolling up needle winding, due to the every rotation of volume needle one week, one section of first pole of corresponding length
Piece has been wound on volume needle, therefore, for next section of the first pole piece that will be wound, can be wound on volume needle
One week length is also gradually increasing.
First time zero can be the starting point that volume needle starts turning one week stroke, be also possible to other positions
Place need to only change the first preset value θ for the difference at the setting moment of the first time zero01, as first angle value θ1Quilt
It obtains, S20 can be entered step.
Step S20 is judgment step, and the foundation judged here is based primarily upon acquired first angle value θ1, specifically,
Judge first angle value θ1Whether the first preset value θ is equal to01, if so, step S10 is repeated, conversely, entering step S31.Also
It is to say, if first angle value θ1Equal to the first preset value θ01, then illustrate that after first tab is wound in needle be not in mistake
Position phenomenon, in other words, the magnitude of misalignment of the first tab in the range of deviation allows, thus, without the position to first tab
It is adjusted, in this case, it is possible to repeat step S10, volume needle continues the winding in next week, and obtains next first
Angle value θ1.It needs exist for, it is emphasized that " judging first angle value θ1Whether the first preset value θ is equal to01" it is not strictly to anticipate
It is identical in justice, but in the range of a permission, the two is considered equal.
, whereas if being unsatisfactory for above-mentioned condition, then S31 is entered step, in step S31, adjusting is applied to the first pole piece
First pressure, and the action direction of first pressure is vertical with the first pole piece.
According to above description it is found that by comparing first angle value θ1With the first preset value θ01Size, that is, can determine whether
First tab whether there is inconsistent phenomenon, and by adjusting the pressure applied to the first pole piece, so that the first pole piece was conveying
The offset to the direction of anticipation is generated in journey, which will drive the first tab and generate offset, so that the mistake of the first tab
Position phenomenon has obtained effective control.
And be readily appreciated that, the every winding of volume needle one week can all execute step S10~step S31 operation, so that first
The dislocation of each the first tab on pole piece is under control, and improves the yields of electrode assembly.
As shown in Fig. 2, being additionally added and sentencing after step S20 in order to ensure the offset direction of the first tab is anticipation direction
Disconnected step S22 judges first angle value θ in step S221Whether less than the first preset value θ01, if so, entering step
S41, conversely, entering step S51.
Herein it should be noted that in the winding process of the first pole piece, in order to improve the energy density of electrode assembly with
And winding quality, effect has preset first pressure always on the first pole piece, and first pressure can provide tension for the first pole piece,
Meanwhile the first pressure can form protrusion on the first pole piece, the thickness of the first pole piece after forming protrusion is relatively formed
The thickness of the first pole piece before protrusion is larger, therefore, when raised first pole piece coiling is when rolling up needle, roll up needle and
The size of the integral diameter of the first pole piece on volume needle increases, and so, volume needle turns over corresponding to equal angular
Arc length is unequal, and integral diameter is bigger, and the length of the first pole piece needed when being wound in needle one week is longer.
In the above cases, if first angle value θ1Less than the first preset value θ01, then illustrate the position of the first tab
Rearward compared with predeterminated position, at this point, entering step S41, reduce the first pressure applied to the first pole piece, the effect side of first pressure
To perpendicular to the first pole piece.Reduce first pressure be substantially exactly the tension for reducing the first pole piece so that the first pole piece generate to
Preceding offset, to correct the magnitude of misalignment of the first tab.
, whereas if first angle value θ1Greater than the first preset value θ01, then illustrate the position of the first tab compared with predeterminated position
It is forward, at this point, entering step S51, increase the first pressure applied to the first pole piece, similarly, the action direction of first pressure hangs down
Directly in the first pole piece.This step S51 is contrary with the adjusting of step S41, but regulation mechanism is identical, and details are not described herein again.
Certainly, according to first angle value θ1With the first preset value θ01Difference size, can also be to the big of first pressure
The small accurate setting of realization, to realize the accurate adjusting to the first tab magnitude of misalignment.
Further, as shown in figure 3, in order to ensure the inconsistent phenomenon to the first tab is reliably controlled, in step S41
In, it can further include: increasing the tension of the first pole piece, this is because, after increasing the tension of the first pole piece, the first pole
Piece is stretched under tension, at this point it is possible to reduce integral diameter accordingly, adjusts the first tab forward so as to play
Position effect.In the step, while reduction is applied to the first pressure of the first pole piece, first is also further increased
The tension of pole piece uses two ways to control the dislocation of the first tab, so that the dislocation control method is relatively reliable.
Similarly, as shown in figure 4, can also include: the tension for reducing the first pole piece in step s 51.That is,
While increasing the first pressure applied to the first pole piece, the tension of the first pole piece can also be reduced simultaneously.Step S51 and step
Rapid S41 technical effect having the same, details are not described herein again.
It is known that in the transmission process of the first pole piece, therefore the first pole piece, should be always by the effect of tension
The dislocation control to the first tab also may be implemented by adjusting the size of tension of the first pole piece in the dislocation of the first tab of control
System.Above-mentioned steps S41 and step S51 may further ensure that the first tab can generate the offset of predetermined direction, to the first pole
The dislocation control of ear is more efficient.
It is illustrated above only for the dislocation control method of the first tab, it is also possible to the second tab
Dislocation controlled, the dislocation control method of the second tab can be identical as the dislocation control method of the first tab, can also be with
It is different.
In the present embodiment, the dislocation control method of the second tab with it is aforementioned in the dislocation control method of the first tab it is identical,
Details are not described herein again, and the dislocation control method flow chart of the second tab can be found in Fig. 5.Fig. 5 shows the dislocation control of the second tab
The flow chart of the first embodiment of method processed.
Also, the other embodiments for being adapted to the dislocation control method of the first tab are equally applicable to the mistake to the second tab
Position control.
In another embodiment, the dislocation of the first tab and the second tab can also be controlled simultaneously, due to
Those skilled in the art are after reading foregoing teachings, it is understood that know how the dislocation control method of the first tab and second
The dislocation control method of tab combines, and is controlled simultaneously the dislocation of the first tab and the second tab with realizing, therefore, herein no longer
It repeats, the specific flow chart for misplacing control method can be found in Fig. 6.Fig. 6, which is shown, carries out mistake to the first tab and the second tab
The method flow diagram of position control.
Based on above-mentioned tab dislocation control method, present invention also provides a kind of winding device 1, which is used
Tab dislocation control method in any of the above-described embodiment.
As shown in fig. 7, the winding device 1 includes:
First processing unit (attached to be not shown in the figure), for obtaining volume needle from the first time zero to T1Moment turned over
One angle value θ1, T1Moment is this moment for detecting the first tab that will be wound in needle, and for judging first jiao
Angle value θ1Whether the first preset value θ is equal to01;
First test section 11, for incuding the first tab that will be wound on needle;And
First pressure adjustment portion 12, for adjusting the first pressure for being applied to the first pole piece, the action direction of first pressure
It is vertical with the first pole piece.
Wherein, the first processing unit is communicated to connect with the first test section 11 and first pressure adjustment portion 12 respectively.
The winding device 1 further includes volume needle 13, and volume needle 13 is for winding the first pole piece 21, the second pole piece 22 and diaphragm.
When the first test section 11 senses the first tab, the first test section 11 issues electric signal to the first processing unit, the
After one processing unit receives the electric signal, while the first time zero is obtained to T1The of this period curls inward needle 13 of moment rotation
One angle value θ1, and by first angle value θ1With the first preset value θ01Compare, and judges first angle value θ1Whether first is equal to pre-
If value θ01.Command adapted thereto is issued to first pressure adjustment portion 12 according to comparison result.
As first angle value θ1Equal to the first preset value θ01When, the first processing unit, which controls the first test section 11, to be continued to next
It is a to be incuded wound on the first tab on volume needle 13.
Conversely, the first processing unit control first pressure adjustment portion 12 acts, the first of the first pole piece 21 is applied to adjust
Pressure, the action direction of the first pressure is perpendicular to the first pole piece 21.
The winding device passes through the communication connection of the first processing unit, the first test section 11 and first pressure adjustment portion 12,
And misplaced control method using the tab in aforementioned, realize effective control to tab inconsistent phenomenon.
In the present embodiment, first pressure adjustment portion 12 includes the first cavity plate 12a for being respectively arranged at 21 two sides of the first pole piece
Cooperate with the first punch-pin 12b, the first cavity plate 12a and the first punch-pin 12b, to apply first pressure to the first pole piece 21.First is recessed
After mould 12a and the first punch-pin 12b molding, protrusion can be formed on the first pole piece 21, the formation of the protrusion can be played to the
One pole piece 21 applies the effect of tension, applies when being molded by adjusting the first cavity plate 12a and the first punch-pin 12b to the first pole piece 21
Active force, the tension of adjustable first pole piece 21, and then the magnitude of misalignment of the first tab can be adjusted accordingly.
First pressure adjustment portion 12 further includes driving portion, and driving portion drives the first cavity plate 12a and the first punch-pin 12b to generate work
Dynamic stroke, to be used to apply first pressure to the first pole piece 21, driving portion may be embodied as linear motor or cylinder etc..
Further, which further includes the first judging part (attached to be not shown in the figure) and the first tension adjustment portion 14,
Wherein, the first judging part is for judging first angle value θ1Whether less than the first preset value θ01;First tension adjustment portion 14 is used for
The tension of the first pole piece 21 is adjusted, specifically, as first angle value θ1Less than the first preset value θ01When, the first tension adjustment portion 14
Increase the tension for being applied to the first pole piece 21;Conversely, working as first angle value θ1Greater than the first preset value θ01When, the first tension adjustment
Portion 14, which reduces, is applied to the tension of the first pole piece 21, and the first judging part and the first tension adjustment portion 14 with the first processing unit
Communication connection.After being arranged in this way, the first tension adjustment portion 14 can be applied to the first pole piece 21 jointly with first pressure adjustment portion 12
Add active force, to ensure that the dislocation to the first tab carries out more accurate control.
In some other embodiment, the first judging part and the first processing unit can also be integrated into a communication module.
In the embodiment shown in fig. 7, the first test section 11, first pressure adjustment portion 12 and the first tension adjustment portion 14
Extending direction along the first pole piece 21 is successively arranged, and the first test section 11 than other components closer to volume needle 13.
Roll up needle 13 it is every rotation one week, the first test section 11 need detect will wound on roll up needle 13 on the first tab, because
This, the first test section 11 is needed close to volume needle 13.And first pressure adjustment portion 12 compared with the first tension adjustment portion 14 closer to volume needle 13
This set-up mode advantageously, this is because, the first tension adjustment portion 14 can be used to control the entirety of the first pole piece 21
Power, and first pressure adjustment portion 12 applies mainly to that will carry out dislocation adjustment wound on the first tab on volume needle 13
Active force can be according to first angle value θ1With the first preset value θ01Comparison result adjusted in real time, therefore, if by
One pressure regulating part 12 is positioned close to the side of volume needle 13, then the active force of first pressure adjustment portion 12 can be significantly more efficient
The first pole piece 21 is acted on, and then achievees the purpose that effectively to adjust the dislocation of the first tab.
In the application, winding device 1 can also include: second processing portion (not shown), for obtain volume needle 13 from
Second time zero is to T2The second angle value θ that moment is turned over2, T2Moment is to detect that the second of needle 13 will be wound in
This moment of tab, and for judging second angle value θ2Whether the second preset value θ is equal to02;
Second test section 11 ', for incuding the second tab that will be wound on needle 13;And
Second pressure adjustment portion 12 ', for adjusting the second pressure for being applied to the second pole piece 22, the effect side of second pressure
To vertical with the second pole piece 22.Wherein, second processing portion is logical with the second test section 11 ' and second pressure adjustment portion 12 ' respectively
Letter connection.
Further, winding device 1 further includes the second judging part (attached to be not shown in the figure) and the second tension adjustment portion 14 ',
Wherein, the second judging part is for judging second angle value θ2Whether less than the second preset value θ02;Second tension adjustment portion 14 ' is used for
The tension of the second pole piece 22 is adjusted, specifically, as second angle value θ2Less than the second preset value θ02When, the second tension adjustment portion
14 ' increase the tension for being applied to the second pole piece 22;Conversely, working as second angle value θ2Greater than the second preset value θ02When, the second tension
Adjustment portion 14 ', which reduces, is applied to the tension of the second pole piece 22, and the second judging part and the second tension adjustment portion 14 ' are with second
Processing unit communication connection.After being arranged in this way, the second tension adjustment portion 14 ' can be with second pressure adjustment portion 12 ' jointly to second
Pole piece 22 applies active force, to ensure that the dislocation to the second tab carries out more accurate control.
In addition, second pressure adjustment portion 12 ' can use structure identical with first pressure adjustment portion 12, that is, the second pressure
Power adjustment portion 12 ' includes the second cavity plate and the second punch-pin for being respectively arranged at 22 two sides of the second pole piece, the second cavity plate and second convex
Mould cooperation, to apply second pressure to the second pole piece 22.
Similarly, for driving the driving portion of the second cavity plate and the second punch-pin also to may be embodied as linear motor and cylinder etc..
Winding device 1 further includes the first diaphragm coiled strip roller 15 and the second diaphragm coiled strip roller 16, correspondingly, in order to adjust first
The tension of diaphragm and the second diaphragm, winding device 1 further include the first membrane tension adjustment portion 17 and the second membrane tension tune
Section portion 18.
First test section 11 and the second test section 11 ' can use photoelectric sensor, for example, when the first tab stop so that
When the optical signal of photoelectric sensor can not transmit, photoelectric sensor senses the first tab, and electric signal is transferred at first
Reason portion.
First processing unit and second processing portion can be all made of PLC processing unit, to realize the first processing unit respectively with the
The communication connection of one test section 11 and first pressure adjustment portion 12 and second processing portion respectively with the second test section 11 ' and
The communication connection of two pressure regulating parts 12 '.Certainly, the first processing unit and second processing portion can share a PLC processing unit.
In the embodiment shown in fig. 7, winding device 1 further includes the tension control mechanism for controlling the tension of diaphragm,
To realize the tension adjustment of diaphragm.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
- The control method 1. a kind of tab misplaces characterized by comprisingStep S10 obtains volume needle from the first time zero to T1The first angle value θ that moment is turned over1, the T1Moment is inspection This moment that will be wound in the first tab of needle is measured, and/orVolume needle is obtained from the second time zero to T2The second angle value θ that moment is turned over2, the T2Moment will to detect It is wound in this moment of the second tab of needle;Step S20 judges the first angle value θ1Whether the first preset value θ is equal to01, if so, step S10 is repeated, conversely, S31 is entered step, and/orJudge the second angle value θ2Whether the second preset value θ is equal to02, if so, step S10 is repeated, conversely, entering step S32;Step S31, adjusts the first pressure for being applied to the first pole piece, and the action direction of the first pressure and the first pole piece hang down Directly;Step S32, adjusts the second pressure for being applied to the second pole piece, and the action direction of the second pressure and the second pole piece hang down Directly.
- The control method 2. tab according to claim 1 misplaces, which is characterized in that after the step S20 further include:Step S22 judges the first angle value θ1Whether less than the first preset value θ01, if so, S41 is entered step, conversely, S51 is entered step, and/orJudge the second angle value θ2Whether less than the second preset value θ02, if so, S42 is entered step, conversely, entering step S52;Step S41 reduces the first pressure;Step S42 reduces the second pressure;Step S51 increases the first pressure;Step S52 increases the second pressure.
- The control method 3. tab according to claim 2 misplaces, which is characterized in that the step S41 further include: increase by the The tension of one pole piece, and/orThe step S42 further include: increase the tension of the second pole piece.
- The control method 4. tab according to claim 2 misplaces, which is characterized in that the step S51 further include: reduce the The tension of one pole piece, and/orThe step S52 further include: reduce the tension of the second pole piece.
- 5. a kind of winding device, which uses tab according to any one of claims 1-4 dislocation control method, It is characterized in that, comprising:First processing unit, for obtaining volume needle from the first time zero to T1The first angle value θ that moment is turned over1, and be used for Judge the first angle value θ1Whether the first preset value θ is equal to01, the T1Moment is to detect will be wound in needle This moment of one tab;First test section, for incuding the first tab that will be wound on needle;AndFirst pressure adjustment portion, for adjusting the first pressure for being applied to the first pole piece, the action direction of the first pressure with First pole piece is vertical,First processing unit is communicated to connect with first test section and the first pressure adjustment portion respectively,And/orSecond processing portion, for obtaining volume needle from the second time zero to T2The second angle value θ that moment is turned over2, and be used for Judge the second angle value θ2Whether the second preset value θ is equal to02, the T2Moment is to detect will be wound in needle This moment of two tabs;Second test section, for incuding the second tab that will be wound on needle;AndSecond pressure adjustment portion, for adjusting the second pressure for being applied to the second pole piece, the action direction of the second pressure with Second pole piece is vertical,The second processing portion is communicated to connect with second test section and the second pressure adjustment portion respectively.
- 6. winding device according to claim 5, which is characterized in that further include:First judging part, for judging the first angle value θ1Whether less than the first preset value θ01, andFirst tension adjustment portion, as first angle value θ1Less than the first preset value θ01When, first tension adjustment portion increases It is applied to the tension of the first pole piece greatly;As first angle value θ1Greater than the first preset value θ01When, first tension adjustment Portion reduces the tension for being applied to the first pole piece,First judging part and first tension adjustment portion are communicated to connect with first processing unit.
- 7. winding device according to claim 5, which is characterized in that further include:Second judging part, for judging the second angle value θ2Whether less than the second preset value θ02, andSecond tension adjustment portion, as second angle value θ2Less than the second preset value θ02When, second tension adjustment portion increases It is applied to the tension of the second pole piece greatly;As second angle value θ2Greater than the second preset value θ02When, second tension adjustment Portion reduces the tension for being applied to the second pole piece,Second judging part and second tension adjustment portion are communicated to connect with the second processing portion.
- 8. winding device according to claim 6, which is characterized in that first test section, the first pressure are adjusted Portion and first tension adjustment portion successively arrange along the extending direction of first pole piece, and first test section is than it Its component is closer to the volume needle.
- 9. winding device according to claim 5, which is characterized in that the first pressure adjustment portion includes being respectively arranged at The first cavity plate and the first punch-pin of first pole piece two sides, first cavity plate and first punch-pin cooperate, with to described first Pole piece applies the first pressure,And/orThe second pressure adjustment portion includes the second cavity plate and the second punch-pin for being respectively arranged at the second pole piece two sides, and described second Cavity plate and second punch-pin cooperate, to apply the second pressure to second pole piece.
- 10. winding device according to claim 5, which is characterized in that first test section and second test section At least one of include photoelectric sensor.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112310568A (en) * | 2019-09-24 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Tab dislocation adjusting method and device |
CN112701343A (en) * | 2020-12-29 | 2021-04-23 | 上海骄成机电设备有限公司 | Detection method for pole piece feeding of battery winder and battery winder |
CN113594556A (en) * | 2021-07-27 | 2021-11-02 | 厦门海辰新能源科技有限公司 | Winding tab dislocation adjusting method and control system |
CN114843621A (en) * | 2022-04-01 | 2022-08-02 | 广东利元亨智能装备股份有限公司 | Method and device for controlling edge distance of tab, controller and storage medium |
WO2023197108A1 (en) * | 2022-04-11 | 2023-10-19 | 宁德时代新能源科技股份有限公司 | Method and device for correcting positions of tabs of electrode assembly |
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