CN104014461B - Lithium battery material unicoater - Google Patents
Lithium battery material unicoater Download PDFInfo
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- CN104014461B CN104014461B CN201410285679.3A CN201410285679A CN104014461B CN 104014461 B CN104014461 B CN 104014461B CN 201410285679 A CN201410285679 A CN 201410285679A CN 104014461 B CN104014461 B CN 104014461B
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- reverse side
- die head
- material strip
- coating die
- side coating
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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 discloses lithium battery material unicoater, comprise at least one jockey pulley and a reverse side coating die head, jockey pulley keeps setting tension force for drawing material strip and makes material strip inclined; Reverse side coating die head tilts upward, and reverse side coating die head is horizontal by an acute angle; When being coated with battery material, the reverse side at material strip is upwards supported in the end of reverse side coating die head, and the level after reverse side coating die head is upwards propped up of the material strip on rear side of reverse side coating die head enters drying baker; The material strip of reverse side coating die head and rear side is an acute angle.The present invention has double spread function, and structure is simple, and working (machining) efficiency is high, consume energy low, evenly, coating quality is good in coating, ensure that the surface density being coated on the battery material of material strip obverse and reverse is more than 0.32%, and can realize, gap coating, zebra coating and full roll surface be coated with continuously.
Description
Technical field
The present invention relates to the lithium battery material coating machine technical field with double spread function, especially relate to lithium battery material unicoater.
Background technology
Lithium battery material coating machine is used for, at tape surface coating lithium battery material, in order to improve coating efficiency and coating quality, have now been developed the lithium battery material coating machine with double spread function.The lithium battery material coating machine with double spread function has two kinds of designs at present,
The first: drying baker is provided with upper and lower two-layer drying channel, if Chinese invention patent is number for " 201020699886.0 ", patent name are for shown in the Chinese invention patent of " a kind of unicoater ", the each coating die head in two ends of drying baker, first carry out front coating and front oven dry, material strip enters ground floor drying channel and dries after the coating die head of first end completes front coating; Carry out reverse side coating and reverse side oven dry again, after by drying baker, complete reverse side coating at the coating die head of the second end, and then enter the oven dry of second layer drying channel, rewinding again out.There is following shortcoming in it: 1, when carrying out reverse side coating, the material strip front being coated with lithium battery material is through coating backing roller, the battery material in material strip front is pressed in coating backing roller, can weigh wounded, embossing or scrape the battery material being coated on material strip front, affect coating quality, therefore, it can only carry out zebra coating, full roll surface can not be realized be coated with continuously, the battery material of the strip that it can only extend at the surface of the material strip some length directions along material strip of coating.2, crawling is even.3, machine energy consumption front that is large 4., material strip passes twice through baking box, affects coating quality.
The second: two coating die heads are set in drying baker the same side, a front coating die head and a reverse side coating die head.If Chinese invention patent application is number for " 201210032483.4 ", patent name are for shown in the Chinese invention patent application of " double spread device ", first carry out front coating, material strip passes through from the pressing of front coating die head and front coating backing roller, front coating die head is horizontally disposed with, front coating die head is vertically resisted against the roll surface of coating backing roller joint, front, and front coating die head level penetrates lithium battery material to the right.Reverse side coating is carried out again after completing front coating, pressing place of material strip coating die head and reverse side coating backing roller is from the negative passed through, reverse side coating die head is vertically arranged, reverse side coating backing roller is arranged on the top of reverse side coating die head, reverse side coating die head is vertically resisted against the roll surface of reverse side coating backing roller joint, and reverse side coating die head penetrates lithium battery material vertically upward; And then enter drying baker and carry out two-sided oven dry, rewinding after drying baker dries out.In first scheme, material strip only by drying baker once, avoids material strip secondary to enter drying baker, to solve in the first scheme the defect of and at the 3rd at the 4th.
But, it must configure coating backing roller on the opposite of front coating die head and reverse side coating die head, for being pressed in the another side of material strip, material strip is clamped by coating die head and coating backing roller, normally carrying out of guarantee coating, and it exists following defect: 1, can be involved in steam bubble between material strip coating die head, have a strong impact on coating quality, be coated on the battery material became uneven of tape surface, weight is uneven, and coating accuracy is not high.2, the smoothness on the surface of material strip is limited; there are some fine particles in tape surface; the surface also out-of-flatness of material strip, in material strip tape transport process, the two sides of material strip is supported by coating backing roller and coating die head rigidity respectively; the fine particle of the lip mouth of coating die head at a touch tape surface; will material strip be scratched, often can scrape a macropore or large mouth at material strip, even occur the phenomenon of broken belt; production efficiency is not high, and the yields of the product produced is also on the low side.3, can only zebra coating be carried out, full roll surface can not be realized and be coated with continuously.
Therefore be necessary to be improved.
Summary of the invention
For the deficiency that prior art exists, the object of this invention is to provide lithium battery material unicoater, it has double spread function, and structure is simple, and working (machining) efficiency is high, consumes energy low, and evenly, coating quality is good in coating, and can realize full roll surface and be coated with continuously.
To achieve these goals, the technical solution adopted in the present invention is.
Lithium battery material unicoater, comprises drying baker and a front apparatus for coating, at the front of material strip coating battery material, also comprises
At least one jockey pulley, is arranged between front apparatus for coating and drying baker, inclined for drawing the material strip that material strip keeps setting tension force making to be between reverse side applying area;
One reverse side coating die head, is arranged between jockey pulley and drying baker, is positioned at the below of material strip, and reverse side coating die head tilts upward, and reverse side coating die head is horizontal by an acute angle;
When being coated with battery material, the end of reverse side coating die head is inclined upwardly the reverse side supported at material strip, material strip on rear side of reverse side coating die head after reverse side coating die head is upwards propped up with plane-parallel, material strip level on rear side of reverse side coating die head enters drying baker, and the material strip on rear side of reverse side coating die head and reverse side coating die head is an acute angle.
In further technical scheme, described material strip before reverse side coating die head upwards props up material strip between jockey pulley and drying baker entrance is inclined, and the material strip between jockey pulley and drying baker entrance and the angle of horizontal plane are 30 ~ 60 degree.
In further technical scheme, described material strip after reverse side coating die head upwards props up material strip on rear side of reverse side coating die head is concordant with horizontal plane, and the angle of the material strip on rear side of reverse side coating die head and reverse side coating die head is 65 ~ 75 degree.
In further technical scheme, the angle of the material strip of described reverse side coating die head both sides after reverse side coating die head upwards props up material strip is 90 ~ 160 degree.
In further technical scheme, the side of described reverse side coating die head is provided with die head mount pad and for regulating the lifting mechanism of mount pad height, die head mount pad is fixed on lifting mechanism, and reverse side coating die head is fixed on die head mount pad.
In further technical scheme, described lifting mechanism selects lead-screw drive mechanism, rack and pinion drive mechanism or cylinder-driven mechanism.
In further technical scheme, described reverse side coating die head is disposed with upper lip and lower lip along the direction of advance of material strip, and upper lip is 0.5 ~ 2mm higher than the height of lower lip, and when being coated with, only the outer end of upper lip tilts to be resisted against the reverse side of material strip, and lower lip does not support material strip.
In further technical scheme, described upper lip is 0.8 ~ 1.2mm higher than the height of lower lip.
In further technical scheme, the outer end of described upper lip arranges bight always, the seamed edge in the right angle portion of upper lip is resisted against material strip, the outer end of lower lip is provided with bight always, stay between the right angle portion of lower lip and material strip and establish a gap, for limiting the thickness of the battery material being coated on material strip reverse side, upper lip, between lower lip and material strip, form the coat capacity of a battery material.
In further technical scheme, described front apparatus for coating comprises a front dispense tip and front coating backing roller, and front dispense tip is horizontally disposed with, and front dispense tip is arranged on the left side of front coating backing roller.
After adopting said structure, the present invention is compared to the prior art advantageously: the present invention has double spread function, structure is simple, working (machining) efficiency is high, consume energy low, evenly, coating quality is good in coating, ensure that the surface density being coated on the battery material of material strip obverse and reverse is more than 0.32%, and can realize, gap coating, zebra coating and full roll surface be coated with continuously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the partial enlarged drawing at C place in Fig. 1.
Fig. 3 is the partial enlarged drawing at D place in Fig. 2.
In figure:
1, front apparatus for coating 11, front dispense tip 12, front coating backing roller;
2, jockey pulley;
3, material strip;
4, reverse side coating die head 41, upper lip 42, lower lip;
5, drying baker;
6, die head mount pad.
Detailed description of the invention
The following stated is only preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment, see shown in Fig. 1 to Fig. 3, lithium battery material unicoater, comprise drying baker 5, front apparatus for coating 1, at least one jockey pulley 2 and a reverse side coating die head 4, front apparatus for coating 1 is for being coated with battery material in the front of material strip 3, front apparatus for coating 1 is provided with a front dispense tip 11 and front coating backing roller 12, and front dispense tip 11 is horizontally disposed with, and front dispense tip 11 is arranged on the left side of front coating backing roller 12.
Be between reverse side applying area between front apparatus for coating 1 and drying baker 5, for the reverse side coating battery material at material strip 3, jockey pulley 2 and reverse side coating die head 4 are arranged between reverse side applying area.
Jockey pulley 2, is arranged between front apparatus for coating 1 and drying baker 5, keeping setting tension force, making the material strip 3 that is between reverse side applying area inclined simultaneously for drawing material strip 3; Material strip 3 before reverse side coating die head 4 upwards props up material strip 3 between jockey pulley 2 and drying baker 5 entrance is inclined, and the material strip 3 between jockey pulley 2 and drying baker 5 entrance is 30 ~ 60 degree with the angle of horizontal plane.
Reverse side coating die head 4, is arranged between jockey pulley 2 and drying baker 5, is positioned at the below of material strip 3, and reverse side coating die head 4 tilts upward, and reverse side coating die head 4 is horizontal by an acute angle;
When being coated with battery material, the end of reverse side coating die head 4 is inclined upwardly the reverse side supported at material strip 3, material strip 3 on rear side of reverse side coating die head 4 after reverse side coating die head 4 is upwards propped up with plane-parallel, material strip 3 level on rear side of reverse side coating die head 4 enters drying baker 5.
Material strip 3 after reverse side coating die head 4 upwards props up material strip 3 on rear side of reverse side coating die head 4 is concordant with horizontal plane, material strip 3 level enters drying baker 5, during front coating, reverse side are coated with face and oven dry, the obverse and reverse being coated with the material strip 3 of battery material no longer contacts any roller, secondary pollution will be caused to contact with secondary to battery material, ensure that the surface density being coated on the battery material of material strip 3 obverse and reverse is more than 0.32%, the angle a of the material strip 3 on rear side of reverse side coating die head 4 and reverse side coating die head 4 is 65 ~ 75 degree.After reverse side coating die head 4 upwards props up material strip 3, the angle b of the material strip 3 of reverse side coating die head 4 both sides is 90 ~ 160 degree.Reverse side coating die head 4 is an acute angle with the material strip 3 on rear side of reverse side coating die head 4, and this angle is 65 ~ 75 degree.
The side of reverse side coating die head 4 is provided with die head mount pad 6 and for regulating the lifting mechanism of mount pad height, die head mount pad 6 is fixed on lifting mechanism, and reverse side coating die head 4 is fixed on die head mount pad 6.Lifting mechanism selects lead-screw drive mechanism, rack and pinion drive mechanism or cylinder-driven mechanism.Lifting mechanism is prior art, as long as can be elevated row during reverse side coating die head 4, repeats no more here.
Reverse side coating die head 4 is disposed with upper lip 41 and lower lip 42 along the direction of advance of material strip 3, and upper lip 41 is 0.5 ~ 2mm higher than the height of lower lip 42, and upper lip 41 and lower lip 42 preferably difference in height scope are that upper lip 41 is 0.8 ~ 1.2mm higher than the height of lower lip 42.When being coated with, only the outer end of upper lip 41 tilts to be resisted against the reverse side of material strip 3, and lower lip 42 does not support material strip 3.
The outer end of upper lip 41 arranges bight always, the seamed edge in the right angle portion of upper lip 41 is resisted against material strip 3, the outer end of lower lip 42 is provided with bight always, stay between the right angle portion of lower lip 42 and material strip 3 and establish a gap, for limiting the thickness of the battery material being coated on material strip 3 reverse side, the thickness being coated on the battery material of material strip 3 reverse side is more even, upper lip 41, forms the coat capacity of a battery material between lower lip 42 and material strip 3.
The present invention has double spread function, and structure is simple, and working (machining) efficiency is high, consume energy low, evenly, coating quality is good in coating, ensure that the surface density being coated on the battery material of material strip 3 obverse and reverse is more than 0.32%, and can realize, gap coating, zebra coating and full roll surface be coated with continuously.
In addition, the present invention makes coating mechanism eliminate reverse side coating backing roller, simplify the structure of coating machine, when being coated with, upper lip 41 tilts to be resisted against the reverse side of material strip 3, lower lip 42 is not resisted against material strip 3, the tension force of material strip 3 is relied on to make the stable state remaining on setting between material strip 3 and upper lip 41, upper lip 41, between lower lip 42 and material strip 3, form the coat capacity of a battery material, keep the stability of coating.
Owing to cancelling reverse side coating backing roller, and only there is the seamed edge in the right angle portion of upper lip 41 to be resisted against material strip 3, upper lip 41 is linear contact lay with the junction of material strip 3, in addition, relation between material strip 3 and upper lip 41 is changed over elasticity compressed by original rigid compressing, and when the fine particle on material strip 3 encounters upper lip 41, fine particle skips upper lip 41 automatically, material strip 3 can not be scratched, enhance productivity and give birth to the rate product rate with product out.
Above content is only preferred embodiment of the present invention, and for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.
Claims (9)
1. lithium battery material unicoater, comprises drying baker (5) and a front apparatus for coating (1), at the front of material strip (3) coating battery material, it is characterized in that: also comprise
At least one jockey pulley (2), be arranged between front apparatus for coating (1) and drying baker (5), inclined for drawing the material strip (3) that material strip (3) keeps setting tension force making to be between reverse side applying area;
One reverse side coating die head (4), be arranged between jockey pulley (2) and drying baker (5), be positioned at the below of material strip (3), reverse side coating die head (4) tilts upward, and reverse side coating die head (4) is horizontal by an acute angle;
Described reverse side coating die head (4) is disposed with upper lip (41) and lower lip (42) along the direction of advance of material strip (3), upper lip (41) is 0.5 ~ 2mm higher than the height of lower lip (42), when being coated with, only the outer end of upper lip (41) tilts to be resisted against the reverse side of material strip (3), and lower lip (42) does not support material strip (3);
When being coated with battery material, the end of reverse side coating die head (4) is inclined upwardly the reverse side supported in material strip (3), the material strip (3) of reverse side coating die head (4) rear side is through reverse side coating die head (4) is upwards propped up after and plane-parallel, and material strip (3) level on rear side of reverse side coating die head (4) enters drying baker (5).
2. lithium battery material unicoater according to claim 1, it is characterized in that: described material strip (3) before reverse side coating die head (4) upwards props up material strip (3) between jockey pulley (2) and drying baker (5) entrance is inclined, and the material strip (3) between jockey pulley (2) and drying baker (5) entrance is 30 ~ 60 degree with the angle of horizontal plane.
3. lithium battery material unicoater according to claim 1, it is characterized in that: the material strip (3) of described reverse side coating die head (4) rear side after reverse side coating die head (4) upwards props up material strip (3) is concordant with horizontal plane, and reverse side coating die head (4) is 65 ~ 75 degree with the angle of the material strip (3) of reverse side coating die head (4) rear side.
4. lithium battery material unicoater according to claim 1, is characterized in that: the angle of the material strip (3) of described reverse side coating die head (4) both sides after reverse side coating die head (4) upwards props up material strip (3) is 90 ~ 160 degree.
5. lithium battery material unicoater according to claim 1, it is characterized in that: the side of described reverse side coating die head (4) is provided with die head mount pad (6) and for regulating the lifting mechanism of mount pad height, die head mount pad (6) is fixed on lifting mechanism, and reverse side coating die head (4) is fixed on die head mount pad (6).
6. lithium battery material unicoater according to claim 5, is characterized in that: described lifting mechanism selects lead-screw drive mechanism, rack and pinion drive mechanism or cylinder-driven mechanism.
7. lithium battery material unicoater according to claim 1, is characterized in that: described upper lip (41) is 0.8 ~ 1.2mm higher than the height of lower lip (42).
8. lithium battery material unicoater according to claim 1, it is characterized in that: the outer end of described upper lip (41) arranges bight always, the seamed edge in the right angle portion of upper lip (41) is resisted against material strip (3), the outer end of lower lip (42) is provided with bight always, stay between the right angle portion of lower lip (42) and material strip (3) and establish a gap, being coated on the thickness of the battery material of material strip (3) reverse side for limiting, upper lip (41), between lower lip (42) and material strip (3), forming the coat capacity of a battery material.
9. lithium battery material unicoater according to claim 1, it is characterized in that: described front apparatus for coating (1) comprises a front dispense tip (11) and front coating backing roller (12), front dispense tip (11) is horizontally disposed with, and front dispense tip (11) is arranged on the left side of front coating backing roller (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285679.3A CN104014461B (en) | 2014-06-24 | 2014-06-24 | Lithium battery material unicoater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285679.3A CN104014461B (en) | 2014-06-24 | 2014-06-24 | Lithium battery material unicoater |
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| CN104014461A CN104014461A (en) | 2014-09-03 |
| CN104014461B true CN104014461B (en) | 2016-04-27 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701569B (en) * | 2015-03-12 | 2018-03-23 | 深圳市格瑞普电池有限公司 | The pole piece and pole piece preparation technology and coating machine of bent lithium ion battery and the battery |
| CN106540862A (en) * | 2015-09-18 | 2017-03-29 | 杨家军 | A kind of novel two-sided coating apparatus |
| CN105499078A (en) * | 2016-02-02 | 2016-04-20 | 佛山市金银河智能装备股份有限公司 | Parallel-type two-side coating machine |
| CN107812648A (en) * | 2017-10-19 | 2018-03-20 | 无锡沄沨科技有限公司 | A kind of lithium ion battery separator PVDF double-face spray painting system and methods |
| CN107626538B (en) * | 2017-10-27 | 2018-08-07 | 深圳市信宇人科技股份有限公司 | Double spread method and device |
| CN114311958A (en) * | 2021-12-29 | 2022-04-12 | 无锡宏瑞机器制造有限公司 | Lithium cell electrode production is with high-speed two-sided intaglio printing coating machine |
| CN116351655B (en) * | 2023-05-31 | 2023-09-12 | 苏州宇量电池有限公司 | Double-sided coating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2846013B1 (en) * | 2002-10-18 | 2005-05-27 | Rieter Perfojet | NON-WOVEN FABRIC OF SMALL VOLUMIC MASS AND METHOD AND PRODUCTION PLANT AND APPLICATIONS THEREOF |
| CN201768661U (en) * | 2010-08-26 | 2011-03-23 | 昆山大阳机电设备制造有限公司 | Coating gap adjusting device of coating machine |
| JP5901010B2 (en) * | 2010-12-27 | 2016-04-06 | 株式会社Sat | Solar cell collecting electrode forming apparatus and method and coating head |
| CN103230861A (en) * | 2013-04-07 | 2013-08-07 | 东莞市海中机械有限公司 | Extrusion type double-side coater |
| CN203935984U (en) * | 2014-06-24 | 2014-11-12 | 东莞市海中机械有限公司 | Lithium battery material unicoater |
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Effective date of registration: 20170321 Address after: 523000 Guangdong city of Dongguan province Dongcheng District cattle hill by industrial park Sanxing Road No. nine Patentee after: Guangdong HaiZhong New Energy Equipment Co., Ltd. Address before: 523000 Dongguan Dongcheng District Industrial Park, Guangdong, China, the sea in the Sea Machinery Co., Ltd. Patentee before: Dongguan Haizhong Machinery Co., Ltd. |