CN101773896A - Adjustable clearance type extrusion head with multiple pressure chambers - Google Patents
Adjustable clearance type extrusion head with multiple pressure chambers Download PDFInfo
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- CN101773896A CN101773896A CN201010105085A CN201010105085A CN101773896A CN 101773896 A CN101773896 A CN 101773896A CN 201010105085 A CN201010105085 A CN 201010105085A CN 201010105085 A CN201010105085 A CN 201010105085A CN 101773896 A CN101773896 A CN 101773896A
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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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Abstract
The invention relates to an adjustable clearance type extrusion head with multiple pressure chambers, which is a part of the extrusion coater of lithium-ion power battery equipment. Pressure of slurry in a single pressure chamber can not be controlled easily, and the clearance sensitivity of clearance coating is decreased, thus affecting the quality of head and tail of clearances, and resulting in that a small distance clearance can not be realized easily; and when a product model is replaced, different extrusion coating heads need to be replaced simultaneously, thus resulting in that the product adaptation of the extrusion coating head is low and the cost and working time are increased. The extrusion clearance of the adjustable clearance type extrusion head with the multiple pressure chambers is realized by utilizing a clearance shim, and the clearance size can be realized by adjusting the thickness of the clearance shim, thereby solving the problems of large pressure control difficulty, low accuracy, incapability of coating of the small clearance and poor product adaptation of the extrusion head, and improving the coating quality.
Description
Technical field
The present invention relates to a kind of lithium battery manufacturing equipment extrusion coating machine, especially a kind of adjustable clearance type extrusion head with multiple pressure chambers.
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 slurry is had certain influence to performance, the time slightly length will produce caking, can't apply.
By experiment, 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 partly is closed, and slurry all is hedged off from the outer world between applying, and therefore can not make slurry rotten because of the reason 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, and is stronger to the adaptability of lithium battery technology.
All the time, the dispense tip that extrusion coater adopted all is single pressure cavity formula.Single pressure cavity is unfavorable for the balance of slurry pressure in the extrusion head cavity; In addition,, cause slurry to extrude required pressure and increase, increased the control difficulty of slurry pressure because pressure chamber is oversize from the distance (being balanced surface) of extrusion mouth.When the extrusion coated of gap, because the oversize extrusion pressure that causes of balanced surface has hindered the slurry feeding speed, cause the gap sensitivity of gap coating to reduce, influence the quality of gap head, tail, cause the small distance gap to be difficult to realize.
In addition, the present extrusion head that uses, the gap of extruding of its extrusion nozzle is to produce by the step of processing on the extrusion head lower lip, a secondary extrusion head that processes, it extrudes the i.e. machine-shaping thereupon in gap, can not change.The slurry of variable grain degree and viscosity, to the requirement of extruding the gap is different fully, like this then can only change different extrusion coated heads, causes the adaptation of product of extrusion coated head low, increase the cost of coating machine, changed the also increase greatly of spent time of product type simultaneously.
Summary of the invention
Development purpose of the present invention is to capture the prior art bottleneck, and a kind of adjustable clearance type extrusion head with multiple pressure chambers is provided, improve the coating quality of extrusion coating machine and to the lithium ion battery manufacturing process to extensive adaptability.
A kind of adjustable clearance type extrusion head with multiple pressure chambers of the present invention, comprise extrusion head lower lip, extrusion head upper lip, gap pad, seal cover, fastening bolt, it is characterized in that: described multiple pressure chambers formula extrusion coated head adopts a plurality of (illustrating three) pressure chamber.
The gap of extruding of described adjustable clearance type extrusion head with multiple pressure chambers extrusion nozzle adopts the gap pad to realize, gap length can be realized by the thickness of adjusting play pad.
Beneficial effect of the present invention is: adopt adjustable clearance type extrusion head with multiple pressure chambers, solved that extrusion coating machine coating pressure control difficulty is big, not high, the problem that can not realize the coating of little gap, extrusion head adaptation of product difference of precision during the coating of gap, improve the coating quality of extrusion coating machine and to the lithium ion battery manufacturing process to extensive adaptability.
Description of drawings
Fig. 1 is the extrusion head structure schematic diagram of existing extrusion coating machine;
Fig. 2 is the perspective view of adjustable clearance type extrusion head with multiple pressure chambers of the present invention;
Fig. 3 is the schematic internal view of adjustable clearance type extrusion head with multiple pressure chambers of the present invention;
Among the figure: 01: the extrusion head lower lip; 02: the extrusion head upper lip; 03: seal cover; 04: fastening bolt; 05: the gap pad; The 06:A pressure chamber; The 07:B pressure chamber; The 08:C pressure chamber; 09: balanced surface; 10: charging aperture; 11: extrusion nozzle.
The specific embodiment
Embodiment:
Shown in Fig. 2,3: a kind of adjustable clearance type extrusion head with multiple pressure chambers of the present invention, comprise extrusion head lower lip 01, extrusion head upper lip 02, seal cover 03, fastening bolt 04, gap pad 05, it is characterized in that: three pressure chambers 06,07,08 are arranged on the balanced surface 07 of described extrusion head lower lip 01, coating sizing-agent enters A pressure chamber 06 through charging aperture 09, latter two pressure chamber 07,08 of flowing through again arrives extrusion nozzle 11 through balanced surface 09 again.
Coating sizing-agent enters A pressure chamber 06 through charging aperture 08, after slurry is full of A pressure chamber 06, can flow into B pressure chamber 07 comparatively uniformly along A pressure chamber 06 edge, and experiment test proves that the slurry pressure uniformity of B pressure chamber is than A pressure chamber height at this moment; After slurry is full of B pressure chamber 07, can flow into C pressure chamber 08 uniformly along B pressure chamber 07 edge, experiment test proves that the slurry pressure uniformity of C pressure chamber is than B pressure chamber height at this moment, and the uniformity of the slurry of C pressure chamber is very consistent, satisfies the coating requirement fully.After slurry was full of C pressure chamber 08, meeting be injected balanced surface 09 uniformly along C pressure chamber 08 edge, and arrived extrusion nozzle 11, was evenly extruded by extrusion nozzle 11 to be coated on the matrix.
A gap pad is arranged between described extrusion head lower lip 01 and the extrusion head upper lip 02, and the gap pad can be changed according to the variation of coating process.When changing the gap pad, only need take off extrusion head upper lip 02, take out original gap pad, again the gap pad of suitable thickness be packed into, load onto extrusion head upper lip 02 again and get final product.
The present invention adopts adjustable clearance type extrusion head with multiple pressure chambers, solved that extrusion coating machine coating pressure control difficulty is big, not high, the problem that can not realize the coating of little gap, extrusion head adaptation of product difference of precision during the coating of gap, improve the coating quality of extrusion coating machine and to the lithium ion battery manufacturing process to extensive adaptability.
Claims (2)
1. an adjustable clearance type extrusion head with multiple pressure chambers comprises extrusion head lower lip, extrusion head upper lip, gap pad, seal cover, fastening bolt, it is characterized in that: described multiple pressure chambers formula extrusion coated head adopts a plurality of pressure chambers.
2. the gap of extruding of described adjustable clearance type extrusion head with multiple pressure chambers extrusion nozzle adopts the gap pad to realize, gap length can be realized by the thickness of adjusting play pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105085A CN101773896A (en) | 2010-01-23 | 2010-01-23 | Adjustable clearance type extrusion head with multiple pressure chambers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105085A CN101773896A (en) | 2010-01-23 | 2010-01-23 | Adjustable clearance type extrusion head with multiple pressure chambers |
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| CN101773896A true CN101773896A (en) | 2010-07-14 |
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| CN201010105085A Pending CN101773896A (en) | 2010-01-23 | 2010-01-23 | Adjustable clearance type extrusion head with multiple pressure chambers |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371226A (en) * | 2010-08-26 | 2012-03-14 | 昆山大阳机电设备制造有限公司 | Fixed coating head for slit gluing |
| CN102371229A (en) * | 2010-08-26 | 2012-03-14 | 昆山大阳机电设备制造有限公司 | Novel coating machine |
| 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 |
| CN102553780A (en) * | 2011-12-20 | 2012-07-11 | 深圳市浩能科技有限公司 | Coating machine extrusion head for manufacturing lithium ion batteries |
| CN102688828A (en) * | 2011-03-25 | 2012-09-26 | 恒辉新能源（昆山）有限公司 | High-precision coater |
| CN103143483A (en) * | 2013-04-02 | 2013-06-12 | 山东润峰集团新能源科技有限公司 | Spray coater die |
| CN103551279A (en) * | 2013-11-15 | 2014-02-05 | 东南大学 | Extrusion coating die head for coating power lithium battery pole piece |
| CN108511672A (en) * | 2017-02-24 | 2018-09-07 | 微宏动力系统（湖州）有限公司 | Extrusion coated die head |
| CN108582618A (en) * | 2018-06-19 | 2018-09-28 | 常州腾拓机械设备有限公司 | A kind of cloth adhesive dispenser for sheet gelatin |
| CN108686894A (en) * | 2018-08-17 | 2018-10-23 | 江西鸿格科技有限公司 | The precise extruding mold head of coating machine |
| CN109759277A (en) * | 2019-01-17 | 2019-05-17 | 银隆新能源股份有限公司 | Side applies die head, coating machine die head and coating machine |
| WO2023280105A1 (en) * | 2021-07-05 | 2023-01-12 | Damitz Thomas Gerhard Wilhelm | Extrusion coating mold for coating lithium ion battery pole pieces |
-
2010
- 2010-01-23 CN CN201010105085A patent/CN101773896A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371229A (en) * | 2010-08-26 | 2012-03-14 | 昆山大阳机电设备制造有限公司 | Novel coating machine |
| CN102371226A (en) * | 2010-08-26 | 2012-03-14 | 昆山大阳机电设备制造有限公司 | Fixed coating head for slit gluing |
| CN102688828A (en) * | 2011-03-25 | 2012-09-26 | 恒辉新能源（昆山）有限公司 | High-precision coater |
| WO2013091352A1 (en) * | 2011-12-20 | 2013-06-27 | 深圳市浩能科技有限公司 | Extrusion head for coater for manufacturing lithium ion battery |
| CN102553780A (en) * | 2011-12-20 | 2012-07-11 | 深圳市浩能科技有限公司 | Coating machine extrusion head for manufacturing lithium ion batteries |
| 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 |
| CN103143483A (en) * | 2013-04-02 | 2013-06-12 | 山东润峰集团新能源科技有限公司 | Spray coater die |
| CN103551279A (en) * | 2013-11-15 | 2014-02-05 | 东南大学 | Extrusion coating die head for coating power lithium battery pole piece |
| CN108511672A (en) * | 2017-02-24 | 2018-09-07 | 微宏动力系统（湖州）有限公司 | Extrusion coated die head |
| CN108582618A (en) * | 2018-06-19 | 2018-09-28 | 常州腾拓机械设备有限公司 | A kind of cloth adhesive dispenser for sheet gelatin |
| CN108686894A (en) * | 2018-08-17 | 2018-10-23 | 江西鸿格科技有限公司 | The precise extruding mold head of coating machine |
| CN109759277A (en) * | 2019-01-17 | 2019-05-17 | 银隆新能源股份有限公司 | Side applies die head, coating machine die head and coating machine |
| WO2023280105A1 (en) * | 2021-07-05 | 2023-01-12 | Damitz Thomas Gerhard Wilhelm | Extrusion coating mold for coating lithium ion battery pole pieces |
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Open date: 20100714 |