CN110323499B - Tension control device of lithium battery winding equipment - Google Patents
Tension control device of lithium battery winding equipment Download PDFInfo
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- CN110323499B CN110323499B CN201810262275.0A CN201810262275A CN110323499B CN 110323499 B CN110323499 B CN 110323499B CN 201810262275 A CN201810262275 A CN 201810262275A CN 110323499 B CN110323499 B CN 110323499B
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- lithium battery
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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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- 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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Secondary Cells (AREA)
Abstract
A tension control device of a lithium battery winding apparatus includes: the device comprises a fixed roller, a floating roller matched with the fixed roller, a mounting seat for mounting the floating roller, a guide rail for the mounting seat to linearly displace on, a driving unit for drawing the mounting seat, a flexible connecting piece connected with the output end of the driving unit and a tension sensor connected between the flexible connecting piece and the mounting seat; the driving unit comprises a rotatable power part, a torque device matched with the rotatable power part and a wheel connected with the output end of the torque device, wherein the wheel is the output end of the driving unit, and the driving unit is controlled by a measured value fed back by the tension sensor to provide a set slip force. The tension control device is high in control precision and convenient to control.
Description
Technical Field
The invention relates to lithium battery winding equipment, in particular to a tension control device for adjusting the tape running tension of a pole piece or a diaphragm.
Background
The existing lithium battery winding equipment is generally provided with a tension control device for adjusting the tape running tension of an object to be wound, such as a pole piece or a diaphragm. A conventional tension control device 10a, see fig. 1, includes: the floating roller device comprises a floating roller 2a matched with a fixed roller, a mounting seat 3a used for mounting the floating roller 2a, a guide rail 4a matched with the mounting seat 3a, a Voice Coil Motor (Voice Coil Motor)5a used for driving the mounting seat 3a to displace on the guide rail 4a and a floating joint 6a connected between the Voice Coil Motor 5a and the mounting seat 3 a. The object 50 to be wound passes around the fixed roller and the floating roller 2a, and the tape running direction is T. During winding, the output rod head of the voice coil motor 5a applies and holds a pulling force to the floating roller 2a by the floating joint 6a, the pulling force is resisted with a resultant force F3 acting on the floating roller 2a by a tape running tension F1, and the tape running tension F1 of the winding object 50 can be controlled, wherein the tape running tension F1 is equal to the resultant force F3/2.
The existing tension control structure has some defects: the tension provided by the voice coil motor 5a is large in fluctuation, the larger the required value of the tension is, the larger the fluctuation of the tension is, and the lower the tension control precision is caused; and, the larger the distance from the middle of the stroke, the larger the fluctuation of the pulling force, the influence of the stroke on the pulling force, and the control is inconvenient.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects in the prior art, and provide a tension control device of a lithium battery winding device, which has high control precision and is convenient to control.
The present invention provides a tension control device for a lithium battery winding apparatus, which includes: the device comprises a fixed roller, a floating roller matched with the fixed roller, a mounting seat for mounting the floating roller, a guide rail for the mounting seat to linearly displace on, a driving unit for drawing the mounting seat, a flexible connecting piece connected with the output end of the driving unit and a tension sensor connected between the flexible connecting piece and the mounting seat; the driving unit comprises a rotatable power part, a torque device matched with the rotatable power part and a wheel connected with the output end of the torque device, wherein the wheel is the output end of the driving unit, and the driving unit is controlled by a measured value fed back by the tension sensor to provide a set slip force.
In some embodiments, the flexible connector is a flexible wire, a flexible tape, or a flexible mesh.
In some embodiments, the set slip force is regulated by the input current or voltage of the torque converter.
In some embodiments, the torque machine is a hysteresis brake, a hysteresis clutch, or a magnetic particle clutch.
In some embodiments, the rotatable power member is an electric motor or a rotary cylinder.
In some embodiments, the tension control device includes a set of fixed rollers and a set of floating rollers spaced apart from each other, the set of floating rollers being mounted on the mounting base.
In some embodiments, the set of fixed rollers is composed of three fixed rollers arranged above and below, and the set of floating rollers is composed of two floating rollers arranged above and below.
In some embodiments, the set of fixed rollers is composed of two fixed rollers arranged above each other, and the set of floating rollers is composed of one floating roller.
In some embodiments, the floating roller comprises a mandrel, a roller barrel and a bearing, wherein the roller barrel is sleeved on the mandrel through the bearing and can rotate relative to the mandrel.
In some embodiments, the fixed roller comprises a mandrel, a roller barrel and a bearing, wherein the roller barrel is sleeved on the mandrel through the bearing and can rotate relative to the mandrel.
Compared with the prior art, the tension control device of the lithium battery winding equipment has the advantages that the driving unit is formed by the rotatable power part, the torque device and the wheels through the ingenious matching of the fixed roller, the floating roller, the mounting seat, the guide rail, the driving unit, the flexible connecting part and the tension sensor, and the stable tension is applied to the mounting seat and the floating roller on the mounting seat by the flexible connecting part connected with the wheels; and the tension sensor arranged between the flexible connecting piece and the mounting seat is used for capturing the measured value of the tension in real time, and the measured value is used for adjusting the set slip force provided by the driving unit, so that the control on the tension of the belt is realized, the control precision is high, and the control is convenient.
Drawings
Fig. 1 is a schematic configuration diagram of a tension control device of a conventional lithium battery winding apparatus.
Fig. 2 and 3 are structural schematic diagrams of two different viewing angles of an embodiment of the tension control device of the lithium battery winding equipment of the invention.
Fig. 4 is a schematic structural view of another embodiment of the tension control device of the lithium battery winding apparatus of the present invention.
Fig. 5 is a schematic diagram of the construction of the dancer roll, mounting, guide rail and tension sensor of the embodiment of fig. 4.
Wherein the reference numerals are as follows: 10a, 10c tension control device 1 fixed roller 11 mandrel 12 roller 13 bearing 2, 2a floating roller 21 mandrel 22 roller 23 bearing 3, 3a, 3c mount 4, 4a voice coil motor 5a floating joint 5 drive unit 51 rotatable power element 52 coupling 53 torquer 54 flexible connector 7 tension sensor 50 winding.
Detailed Description
The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
Referring to fig. 2 and 3, fig. 2 and 3 are two structural schematic views of an embodiment of a tension control device of a lithium battery winding apparatus according to the present invention. The invention provides a tension control device 10 of a lithium battery winding device, which is used for adjusting the tape running tension of an object 50 to be wound, such as a pole piece or a diaphragm. The tension control device 10 includes: the device comprises three fixed rollers 1, two floating rollers 2, a mounting seat 3, a guide rail 4, a driving unit 5, a flexible connecting piece 6 and a tension sensor 7.
The fixed roller 1 comprises a mandrel 11, a roller 12 and a bearing 13. The roller 12 is fitted over the mandrel 11 by means of a bearing 13 and can rotate relative to the mandrel 11.
The dancer 2 comprises a mandrel 21, a roller cylinder 22 and a bearing 23. The roller 22 is fitted over the mandrel 21 by means of a bearing 23 and can rotate relative to the mandrel 21.
Three fixed rollers 1 are arranged up and down to form a group, and two floating rollers 2 are arranged up and down to form a group. Two floating rolls 2 are laterally spaced from the three fixed rolls 1. The wound material 50 is fed from the uppermost fixed roll 1, passes around the upper floating roll 2, passes around the middle fixed roll 1, passes around the lower floating roll 2, and is fed from the lowermost fixed roll 1. The winding object 50 has a running direction T.
The mount 3 is mounted on the guide rail 4 so as to be linearly displaceable. During the winding process, the drive unit 5 applies and holds a tension to the dancing roller 2 via the flexible connection 6, which tension is opposed to the resultant force F3 of the tape running tension F1 acting on the dancing roller 2, and can control the tape running tension F1 of the winding object 50, wherein the tape running tension F1 is equal to the resultant force F3/4.
The tension sensor 7 is arranged at the joint of the flexible connecting piece 6 and the mounting base 3, and can provide a tension measurement value in real time. The drive unit 5 adjusts the set slip force based on the relationship between the measured value of the tension fed back by the tension sensor 7 and the set slip force (i.e., tension), and can obtain a relatively accurate running tension F1.
The drive unit 5 comprises a rotatable power member 51, a coupling 52, a torque converter 53 and wheels 54. Wherein the rotatable power member 51 provides rotational power to the torque converter 53 through the coupling 52. The torque converter 53 is configured to provide a set slip force in response to rotation of the rotatable power member 51 (in a rotational direction Z, opposite to the direction of the resultant force F3). The wheel 54 is the output of the drive unit 5. The magnitude of this slip force can be adjusted by adjusting the input current or input voltage of the torque converter 53 in the case of a set rotational speed and torque output of the rotatable power element 51; in other words, the magnitude of the slip force is adjusted by the input current or the input voltage of the torque converter 53. For example, the rotatable power member 51 is a motor or a rotary cylinder. The torque converter 53 is a hysteresis brake, hysteresis clutch, magnetic particle clutch or other damper with similar performance.
Specifically, the coupling 52 is connected between the rotatable power member 51 and the input end of the torque converter 53. The wheel 54 is connected to the output of the torque converter 53. One end of the flexible connecting piece 6 is connected with the wheel 54, and the other end is connected with the mounting base 3 through the tension sensor 7. In the present embodiment, the flexible connecting member 6 is a flexible wire. In other embodiments, the flexible connecting member 6 may be a flexible belt or a flexible net.
In this way, the rotation of the rotatable power element 51 is transmitted through the coupling 52 and engaged with the torque device 53, so that a predetermined slip force can be applied to the wheel 54. In other words, by means of the cooperation of the rotatable power member and the torque converter 53, the drive unit 5 is able to provide a smooth pulling force to the flexible connection 6 connected to the wheel 54 against the resultant force F3.
It will be appreciated that in some embodiments, the aforementioned coupling 52 may be omitted and the rotatable power member 51 may be directly coupled to the input of the torque converter 53.
Compared with the prior art, the tension control device 10 of the lithium battery winding equipment has the advantages that the fixed roller 1, the floating roller 2, the mounting base 3, the guide rail 4, the driving unit 5, the flexible connecting piece 6 and the tension sensor 7 are skillfully matched, the rotatable power piece 51, the torque device 53 and the wheel 54 form the driving unit 5, and the flexible connecting piece 6 connected with the wheel 54 is used for applying stable tension to the mounting base 3 and the floating roller 2 on the mounting base; and the tension sensor 7 arranged between the flexible connecting piece 6 and the mounting seat 3 is used for capturing the measured value of the tension in real time, and the measured value is used for adjusting the set slip force provided by the driving unit 5, so that the control of the tape-moving tension F1 is realized, the control precision is high, and the control is convenient.
Referring to fig. 4 and 5, fig. 4 is a schematic structural view of another embodiment of the tension control device of the lithium battery winding apparatus according to the present invention. Fig. 5 is a schematic diagram of the construction of the dancer roll, mounting, guide rail and tension sensor of the embodiment of fig. 4. The invention provides a tension control device 10c of a lithium battery winding device, which is mainly distinguished from the tension control device 10 by the following steps: the mounting base 3c is provided with only one floating roll 2, two fixed rolls 1 are arranged up and down corresponding to the floating roll 2, and the leftward belt tension F1 is the resultant force F3/2.
In other embodiments, the number of the floating rollers 2 and the number of the fixed rollers 1 can be changed according to the requirements of practical application. The number of the floating rollers 2 changes, and the relationship between the belt tension F1 and the resultant force F3 changes correspondingly, for example: when the number of the floating rollers 2 is three, the belt running tension F1 is the resultant force F3/6, and when the number of the floating rollers 2 is four, the belt running tension F1 is the resultant force F3/8. It is understood that, within the range of the driving capability of the driving unit 5, increasing the number of the dancers 2 is advantageous for improving the control accuracy of the tape running tension F1.
The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the embodiments of the present invention, and those skilled in the art can easily make various changes and modifications according to the main concept and spirit of the present invention, so the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A tension control device of a lithium battery winding apparatus, comprising: the device comprises a fixed roller, a floating roller matched with the fixed roller, a mounting seat for mounting the floating roller, a guide rail for the mounting seat to linearly displace on, a driving unit for drawing the mounting seat, a flexible connecting piece connected with the output end of the driving unit and a tension sensor connected between the flexible connecting piece and the mounting seat; wherein, the fixed rollers are provided with at least two rollers which are arranged up and down; the floating roller is provided with at least one floating roller, and the floating roller and the fixed roller are arranged at intervals; the driving unit comprises a rotatable power member, a torque device matched with the rotatable power member and a wheel connected with the output end of the torque device, wherein the wheel is the output end of the driving unit, and the driving unit is controlled by a measured value fed back by the tension sensor to provide a set slip force.
2. The tension control device for a lithium battery winding apparatus as claimed in claim 1, wherein the flexible connecting member is a flexible wire, a flexible tape, or a flexible net.
3. The tension control device of a lithium battery winding apparatus as claimed in claim 1, wherein the set slip force is adjusted by an input current or an input voltage of the torque converter.
4. The tension control device of a lithium battery winding apparatus as claimed in claim 1, wherein the torque converter is a hysteresis brake, a hysteresis clutch or a magnetic powder clutch.
5. The tension control device for a lithium battery winding apparatus as claimed in claim 1, wherein the rotatable power member is a motor or a rotary cylinder.
6. The tension control device for a lithium battery winding apparatus as claimed in any one of claims 1 to 5, wherein the floating roller includes a mandrel, a roller and a bearing, the roller being fitted over the mandrel via the bearing and being capable of rotating relative to the mandrel.
7. The tension control device for a lithium battery winding apparatus as claimed in any one of claims 1 to 5, wherein the fixed roller includes a mandrel, a roller and a bearing, the roller being fitted over the mandrel via the bearing and being capable of rotating relative to the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262275.0A CN110323499B (en) | 2018-03-28 | 2018-03-28 | Tension control device of lithium battery winding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262275.0A CN110323499B (en) | 2018-03-28 | 2018-03-28 | Tension control device of lithium battery winding equipment |
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| CN110323499A CN110323499A (en) | 2019-10-11 |
| CN110323499B true CN110323499B (en) | 2021-05-11 |
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| CN201810262275.0A Active CN110323499B (en) | 2018-03-28 | 2018-03-28 | Tension control device of lithium battery winding equipment |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10310299A (en) * | 1997-05-08 | 1998-11-24 | Sony Corp | Device and method for controlling tension of strip |
| CN101604952A (en) * | 2009-04-29 | 2009-12-16 | 北京金普特印刷机械有限公司 | Slip motor automatic control device |
| CN103050654A (en) * | 2011-10-17 | 2013-04-17 | 三门峡兴邦特种膜科技发展有限公司 | Device for directly plating nano fiber diaphragms on two surfaces of lithium ion battery electrode |
| CN103910242A (en) * | 2012-12-31 | 2014-07-09 | 东莞市雅康精密机械有限公司 | Motor pulling type material belt tension control mechanism |
| CN204237319U (en) * | 2014-11-05 | 2015-04-01 | 无锡先导自动化设备股份有限公司 | Tenslator |
| CN205194303U (en) * | 2015-11-18 | 2016-04-27 | 临海市金浪五金塑料制品厂（普通合伙） | Tension control device |
| CN106077973A (en) * | 2016-07-18 | 2016-11-09 | 深圳吉阳智云科技有限公司 | A kind of lug molding cutting apparatus |
| CN107651479A (en) * | 2017-09-19 | 2018-02-02 | 苏州迈展自动化科技有限公司 | A kind of tension control mechanism and cell winding device |
-
2018
- 2018-03-28 CN CN201810262275.0A patent/CN110323499B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10310299A (en) * | 1997-05-08 | 1998-11-24 | Sony Corp | Device and method for controlling tension of strip |
| CN101604952A (en) * | 2009-04-29 | 2009-12-16 | 北京金普特印刷机械有限公司 | Slip motor automatic control device |
| CN103050654A (en) * | 2011-10-17 | 2013-04-17 | 三门峡兴邦特种膜科技发展有限公司 | Device for directly plating nano fiber diaphragms on two surfaces of lithium ion battery electrode |
| CN103910242A (en) * | 2012-12-31 | 2014-07-09 | 东莞市雅康精密机械有限公司 | Motor pulling type material belt tension control mechanism |
| CN204237319U (en) * | 2014-11-05 | 2015-04-01 | 无锡先导自动化设备股份有限公司 | Tenslator |
| CN205194303U (en) * | 2015-11-18 | 2016-04-27 | 临海市金浪五金塑料制品厂（普通合伙） | Tension control device |
| CN106077973A (en) * | 2016-07-18 | 2016-11-09 | 深圳吉阳智云科技有限公司 | A kind of lug molding cutting apparatus |
| CN107651479A (en) * | 2017-09-19 | 2018-02-02 | 苏州迈展自动化科技有限公司 | A kind of tension control mechanism and cell winding device |
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| CN110323499A (en) | 2019-10-11 |
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