CN101791605A - Method for realizing intermittent coating for extrusion coater - Google Patents
Method for realizing intermittent coating for extrusion coater Download PDFInfo
- Publication number
- CN101791605A CN101791605A CN201010124443A CN201010124443A CN101791605A CN 101791605 A CN101791605 A CN 101791605A CN 201010124443 A CN201010124443 A CN 201010124443A CN 201010124443 A CN201010124443 A CN 201010124443A CN 101791605 A CN101791605 A CN 101791605A
- Authority
- CN
- China
- Prior art keywords
- coating
- extrusion
- intermittently
- servomotor
- feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Coating Apparatus (AREA)
Abstract
The invention discloses a method for realizing intermittent coating for an extrusion coater, which is a production device of lithium ion batteries. Transfer coating and continuous extrusion coating all have deficiencies, and a high sensitivity control valve is used for realizing intermittent coating in foreign countries but still has expensive construction cost, complex technology and difficult maintenance, so the invention provides the method for realizing intermittent coating for the extrusion coater. The extrusion coater comprises a size seal pot, a precise screw pump, a servo motor, a feed pipeline, a return line, a drainage pipeline, and a pneumatic or servo motor intermittent control valve and the method is characterized in that the servo motor is used for driving the precise screw pump to feed an extrusion head, the pneumatic or servo motor intermittent control valve is arranged on the feed pipeline, and the drainage pipeline is arranged above the extrusion head. The method not only conforms to the process requirements, has low cost and convenient maintenance, but also provides favorable conditions for batch production of lithium ion power batteries.
Description
Technical field
The present invention relates to a kind of lithium ion battery manufacturing equipment one extrusion coating machine, especially a kind of extrusion coating machine is realized the intermittently mode of coating.
Background technology
Coating is a requisite operation in the lithium ion battery production process, also is the critical process that directly influences every performances such as battery security, capacity, uniformity.Coating is exactly the pasty state viscous paste of making, and uniformly, continuously or being coated on the matrix (aluminium foil or Copper Foil) of being interrupted, guarantees the consistency of thickness of each coating position and coating thickness is controlled in the margin of tolerance of technological requirement.The present domestic two kinds of coating methods that have: transfer type and squash type.Transfer type is a kind of mature technique, but its complex structure, the equipment debugging trouble; Because the slurry of transfer type coating machine is in naked state, therefore stock quality is had certain influence, the time slightly length will produce caking, can't apply.
Take charge of engineer's development with great concentration and constantly experiment by me, the extrusion coater technology is increasingly mature, and its frame for movement is simple, and device miniaturization is saved the space, and debugging is convenient; Its coating extrusion head is closed, and slurry was hedged off from the outer world before applying, and therefore can not make slurry rotten because of the reason of ingress of air.
The coating precision of extrusion coater is more high than transfer type coating machine.Present experimental result shows that the transfer type coating thickness limit is 50 μ m, and the squash type coating can reach 20 μ m, is more suitable for producing high-capacity lithium ion cell, especially lithium-ion-power cell.
But all the time, extrusion coater all can only be coated with continuously, can not finish the coating at intermittence that in coating process, requires according to technological standards, this has just caused the back operation of lithium ion battery production must manually scrape the powder operation, the utmost point powder of the coating position at intermittence that both technological standards had been required strikes off, so both waste raw material, expended manpower again.
Abroad, extrusion coater can be realized intermittently coating by the high sensitivity control valve, but the high sensitivity control valve costs an arm and a leg, and does not also have technical capability to develop this kind control valve at home, cause extrusion coater to cost an arm and a leg, its price is considerably beyond the transfer type coating machine; Simultaneously, the complex structure of high sensitivity control valve is difficult to safeguard, when the situation of slurry obstruction takes place, needs long clean and maintenance.So from price and safeguard angle, the batch (-type) extrusion coating machine can't be competed mutually with transfer coater.
Summary of the invention
Development purpose of the present invention is to capture the prior art bottleneck, and a kind of intermittently mode of extrusion coated that realizes is provided, and can reach technological requirement and can reduce manufacturing cost again, has improved the intermittently cost performance of coating machine greatly.
A kind of extrusion coating machine of the present invention is realized the intermittently mode of coating, comprise slurry hermetically sealed can, accurate screw pump, servomotor, feed pipeline, return line, drainage pipeline, pneumatic or servomotor intermittently control valve, extrusion head, it is characterized in that: described a kind of extrusion coating machine is realized the intermittently mode of coating, adopt the accurate screw pump feed of driven by servomotor to give extrusion head, the stabilization of speed of servomotor, the control accuracy height, the stability of flow of accurate screw pump, do not have pulsation effect, make feeding system pressure, constant flow; The rotation speed change sensitivity of servomotor reaches the purpose that changes slurry flow by changing rotating speed of motor, thereby regulates coating thickness effectively, accurately.
Described a kind of extrusion coating machine is realized the intermittently mode of coating, on the feed pipeline, install pneumatic or servomotor control valve at intermittence, this control valve can promptly be realized the break-make of feed pipeline, to realize control at intermittence to the extrusion head feed, reach the intermittently purpose of coating, and redundant sizing agent is carried back hermetically sealed can will intermittently be coated with by return line the time.
Described a kind of extrusion coating machine is realized the intermittently mode of coating, the drainage pipeline also is housed above extrusion head, before beginning coating at every turn, at first make slurry be full of drainage tube and be back in the hermetically sealed can, air in the extrusion head cavity can be got rid of, make to be full of slurry in the extrusion head cavity fully, close drainage tube again and begin coating, can effectively prevent to produce in the coating process bubble.
Beneficial effect of the present invention is: adopt servomotor control mashing pump rotating speed, not only can realize the coating process at intermittence of extrusion coating machine, also can better control coating position and intermittently precision, more meet technological requirement, for the batch process of lithium-ion-power cell provides advantage.
Owing to adopt pneumatic or servomotor control valve at intermittence replacement high sensitivity flow control valve, can not only reach coating accurate requirement intermittently, reduced the manufacturing cost of equipment again significantly, improved the market competitiveness of batch (-type) extrusion coating machine.
Description of drawings
Fig. 1 is the continuous coating method schematic diagram of existing extrusion coating machine;
Fig. 2 is that a kind of extrusion coating machine utilizes accurate flow control valve to realize the intermittently schematic diagram of coating method;
Fig. 3 is that a kind of extrusion coating machine of the present invention is realized the intermittently schematic diagram of coating method;
Among the figure: 01: the slurry hermetically sealed can; 02: accurate screw pump; 03: high sensitivity flow control valve A; 04: the extrusion head cavity; 05: extrusion head; 06: high sensitivity flow control valve B; 07: the feed pipeline; 08: applicator roll; 09: matrix; 10: slurry; 11: servomotor; 12: return line; 13: the drainage pipeline; 14: pneumatic or servo intermittence control valve; 15: cylinder or servomotor; 16: ball valve
The specific embodiment
Embodiment:
As shown in Figure 3: a kind of extrusion coating machine of the present invention is realized the intermittently mode of coating, adopt servomotor 11 to drive accurate screw pump 02 feed and give extrusion head, the stabilization of speed of servomotor 11, the control accuracy height, the stability of flow of accurate screw pump 02, do not have pulsation effect, make feeding system pressure, constant flow; The rotation speed change sensitivity of servomotor 11 can reach the purpose that changes slurry flow by changing rotating speed of motor, thereby regulate coating thickness effectively, accurately.
On feed pipeline 07, install pneumatic or servomotor control valve 14 at intermittence, this control valve can promptly be realized the break-make of feed pipeline 07, to realize interruption control to extrusion head 05 feed, reach the intermittently purpose of coating, and redundant sizing agent 10 is carried overfall material hermetically sealed cans 01 will intermittently be coated with by return line 12 time.
A kind of extrusion coating machine of the present invention is realized the intermittently mode of coating, adopt pneumatic or servomotor control valve at intermittence replacement high sensitivity flow control valve, can not only reach coating accurate requirement intermittently, reduce the manufacturing cost of equipment again significantly, improved the market competitiveness of extrusion coater.
Claims (3)
1. a kind of extrusion coating machine of the present invention is realized the intermittently mode of coating, comprise slurry hermetically sealed can, accurate screw pump, servomotor, feed pipeline, return line, drainage pipeline, pneumatic or servomotor intermittently control valve, extrusion head, it is characterized in that: described a kind of extrusion coating machine is realized the intermittently mode of coating, adopt the accurate screw pump feed of driven by servomotor to give extrusion head, the stabilization of speed of servomotor, the control accuracy height, the stability of flow of accurate screw pump, do not have pulsation effect, make feeding system pressure, constant flow; The rotation speed change sensitivity of servomotor can be by changing rotating speed of motor reaching the purpose that changes the feed flow, thus effective, trickle control and regulate coating thickness.
2. described a kind of extrusion coating machine is realized the intermittently mode of coating, on the feed pipeline, install pneumatic or servomotor control valve at intermittence, this control valve can be realized the break-make of feed pipeline rapidly, to realize interruption control to the extrusion head feed, reach the intermittently purpose of coating, and redundant sizing agent is carried back hermetically sealed can will intermittently be coated with by return line the time.
3. described a kind of extrusion coating machine is realized the intermittently mode of coating, the drainage pipeline also is housed above extrusion head, before beginning coating at every turn, at first make slurry be full of drainage tube and be back in the hermetically sealed can, air in the extrusion head cavity can be got rid of, make to be full of slurry in the extrusion head cavity fully, close drainage tube again and begin coating, can effectively prevent to produce bubble in the coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101244433A CN101791605B (en) | 2010-03-12 | 2010-03-12 | Method for realizing intermittent coating for extrusion coater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101244433A CN101791605B (en) | 2010-03-12 | 2010-03-12 | Method for realizing intermittent coating for extrusion coater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101791605A true CN101791605A (en) | 2010-08-04 |
| CN101791605B CN101791605B (en) | 2013-07-17 |
Family
ID=42584650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101244433A Active CN101791605B (en) | 2010-03-12 | 2010-03-12 | Method for realizing intermittent coating for extrusion coater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101791605B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569729A (en) * | 2012-01-09 | 2012-07-11 | 惠州市德赛锂电科技有限公司 | Process for forming of positive electrodes of lithium batteries |
| CN102658255A (en) * | 2012-05-10 | 2012-09-12 | 深圳市浩能科技有限公司 | Intermittent extrusion coater and coating method |
| CN102728515A (en) * | 2011-04-14 | 2012-10-17 | 三星Sdi株式会社 | Coating device for plate electrodes of secondary batteries |
| CN102989635A (en) * | 2011-09-13 | 2013-03-27 | 稳得工业股份有限公司 | Female thread leak-proof material coating method and device thereof |
| CN104028425A (en) * | 2014-06-18 | 2014-09-10 | 东莞玖龙纸业有限公司 | Rapid online paint switching and waste paint recycling technology and equipment |
| JP2015062853A (en) * | 2013-09-24 | 2015-04-09 | 日本電気株式会社 | Intermittent coating apparatus and intermittent coating method |
| CN106513225A (en) * | 2016-12-23 | 2017-03-22 | 深圳市浩能科技有限公司 | Coating machine slurry circulation method and system |
| CN109814483A (en) * | 2019-02-20 | 2019-05-28 | 湖南科霸汽车动力电池有限责任公司 | The control method of battery pole piece slurry filling weight |
| CN110560335A (en) * | 2019-09-25 | 2019-12-13 | 上海精珅新材料有限公司 | Online mixing and feeding system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6314638B1 (en) * | 1996-06-19 | 2001-11-13 | Toshiba Battery Co., Ltd. | Apparatus for manufacturing electrode plate for nonaqueous electrolyte battery |
| JP2002159902A (en) * | 2000-11-24 | 2002-06-04 | Dainippon Printing Co Ltd | Coating applicator |
| JP2005040757A (en) * | 2003-07-25 | 2005-02-17 | Sony Corp | Paint feeding device and paint feeding method |
| CN101279315A (en) * | 2007-04-06 | 2008-10-08 | 中外炉工业株式会社 | Intermittent coating method and apparatus |
| JP2009028605A (en) * | 2007-07-25 | 2009-02-12 | Fujifilm Corp | Method and apparatus for intermittent coating |
-
2010
- 2010-03-12 CN CN2010101244433A patent/CN101791605B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6314638B1 (en) * | 1996-06-19 | 2001-11-13 | Toshiba Battery Co., Ltd. | Apparatus for manufacturing electrode plate for nonaqueous electrolyte battery |
| JP2002159902A (en) * | 2000-11-24 | 2002-06-04 | Dainippon Printing Co Ltd | Coating applicator |
| JP2005040757A (en) * | 2003-07-25 | 2005-02-17 | Sony Corp | Paint feeding device and paint feeding method |
| CN101279315A (en) * | 2007-04-06 | 2008-10-08 | 中外炉工业株式会社 | Intermittent coating method and apparatus |
| JP2009028605A (en) * | 2007-07-25 | 2009-02-12 | Fujifilm Corp | Method and apparatus for intermittent coating |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728515A (en) * | 2011-04-14 | 2012-10-17 | 三星Sdi株式会社 | Coating device for plate electrodes of secondary batteries |
| CN102728515B (en) * | 2011-04-14 | 2015-01-14 | 三星Sdi株式会社 | Coating device for plate electrodes of secondary batteries |
| CN102989635A (en) * | 2011-09-13 | 2013-03-27 | 稳得工业股份有限公司 | Female thread leak-proof material coating method and device thereof |
| CN102989635B (en) * | 2011-09-13 | 2015-06-17 | 稳得工业股份有限公司 | Female thread leak-proof material coating method and device thereof |
| CN102569729A (en) * | 2012-01-09 | 2012-07-11 | 惠州市德赛锂电科技有限公司 | Process for forming of positive electrodes of lithium batteries |
| CN102658255A (en) * | 2012-05-10 | 2012-09-12 | 深圳市浩能科技有限公司 | Intermittent extrusion coater and coating method |
| JP2015062853A (en) * | 2013-09-24 | 2015-04-09 | 日本電気株式会社 | Intermittent coating apparatus and intermittent coating method |
| CN104028425A (en) * | 2014-06-18 | 2014-09-10 | 东莞玖龙纸业有限公司 | Rapid online paint switching and waste paint recycling technology and equipment |
| CN106513225A (en) * | 2016-12-23 | 2017-03-22 | 深圳市浩能科技有限公司 | Coating machine slurry circulation method and system |
| CN109814483A (en) * | 2019-02-20 | 2019-05-28 | 湖南科霸汽车动力电池有限责任公司 | The control method of battery pole piece slurry filling weight |
| CN110560335A (en) * | 2019-09-25 | 2019-12-13 | 上海精珅新材料有限公司 | Online mixing and feeding system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101791605B (en) | 2013-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101791605B (en) | Method for realizing intermittent coating for extrusion coater | |
| CN101590463B (en) | Device for controlling coating gap by using split flow pump for extrusion type coating machine and control method thereof | |
| CN202490743U (en) | Gap extruding and coating system | |
| CN202539366U (en) | Novel bending die | |
| CN203946879U (en) | The accurate quantity filling apparatus of horizontal liquid material | |
| CN101773896A (en) | Adjustable clearance type extrusion head with multiple pressure chambers | |
| CN207217569U (en) | A kind of flexible edge-sealing mechanism for the double glass battery component automatic edgers of solar energy | |
| CN103909036A (en) | Lithium ion power battery coater | |
| CN201906701U (en) | Intermittent extrusion type coating machine | |
| CN201446051U (en) | Lithium-ion power battery pole-piece precise coating machine | |
| CN201558786U (en) | Device of extruding coater using split flow pump to control coating gaps | |
| CN104148243B (en) | Dispensing device for storage battery terminal | |
| CN102716838A (en) | Full-automatic edge painting machine | |
| CN203578672U (en) | Liquid material control device for sand mixer in furan resin molding process | |
| CN211514311U (en) | Stirring device for producing building material adhesive | |
| CN209205689U (en) | Regulating mechanism for polar plate plaster coating thickness | |
| CN204172198U (en) | A kind of Automatic coal blending weighing system | |
| CN201586615U (en) | Multi-pressure-cavity adjustable clearance type extrusion head | |
| CN103008184B (en) | Fully-automatic loading device for pole plate coating of lithium battery and adjustment method thereof | |
| CN202860145U (en) | Rotary film evaporator with tooth-shaped scrapping plate device | |
| CN204412557U (en) | Glue-injection machine | |
| CN202967603U (en) | Powder-rush-prevented quantitative powder feeding device | |
| CN204156022U (en) | A kind of rubber-coated mechanism of lithium battery | |
| CN208631390U (en) | Glass glaze anti-corrosive steel tube driving mechanism | |
| CN207770227U (en) | A kind of lithium battery production extrusion coater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Ling Yanchun Document name: Notification of Passing Examination on Formalities |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |