CN104028423B - A kind of lithium battery material unicoater - Google Patents
A kind of lithium battery material unicoater Download PDFInfo
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- CN104028423B CN104028423B CN201410286414.5A CN201410286414A CN104028423B CN 104028423 B CN104028423 B CN 104028423B CN 201410286414 A CN201410286414 A CN 201410286414A CN 104028423 B CN104028423 B CN 104028423B
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Abstract
The invention discloses a kind of lithium battery material unicoater, comprise front coating die head, reverse side coating die head, drying baker and some jockey pulleys, wherein, front coating belt body remains on the first heeling condition, reverse side coating belt body remains on the second heeling condition, the sloped-end of front coating die head is resisted against the optional position in the front of front coating belt body, and the sloped-end of reverse side coating die head is resisted against the optional position at the back side of reverse side coating belt body.The present invention has double spread function, eliminate front coating backing roller and front coating backing roller, 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.
Description
Technical field
The present invention relates to the lithium battery material coating machine technical field with double spread function, especially relate to a kind of 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 a kind of lithium battery material unicoater, it has double spread function, structure is simple, and working (machining) efficiency is high, consumes energy low, 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.
A kind of lithium battery material unicoater, comprise front coating die head, reverse side coating die head, drying baker and some jockey pulleys, front coating die head and reverse side coating die head are positioned at the charging aperture side of drying baker,
Some jockey pulleys, be positioned at the charging aperture side of drying baker, for drawing material strip and making material strip keep the tension force of setting, direction of advance material strip along material strip divides into front coating belt body and reverse side coating belt body, front coating belt body remains on the first heeling condition, and reverse side coating belt body remains on the second heeling condition;
Front coating die head is arranged on the side of front coating belt body, and the sloped-end of front coating die head is resisted against the optional position in the front of front coating belt body;
Coating die head end, described front is disposed with upper lip and lower lip along the direction of advance of material strip, reverse side coating die head end is disposed with upper lip and lower lip along the direction of advance of material strip, upper lip is 0.5 ~ 2mm higher than the height of lower lip, when being coated with, only the outer end of upper lip tilts to be resisted against material strip, and lower lip does not support material strip;
Reverse side coating die head is arranged between front coating die head and drying baker, and reverse side coating die head is positioned at the below of reverse side coating belt body, and the sloped-end of reverse side coating die head is resisted against the optional position at the back side of reverse side coating belt body;
When being coated with battery material, reverse side is coated with belt body and upwards props up by reverse side coating die head, and the material strip on rear side of reverse side coating die head is the level of state, and material strip level enters drying baker.
In further technical scheme, front coating die head is obliquely installed, and the angle of front coating die head and horizontal plane is 5 ~ 20 degree; Reverse side coating die head is obliquely installed, and the angle of reverse side coating die head and horizontal plane is 65 ~ 75 degree.
In further technical scheme, described reverse side coating belt body before reverse side coating die head upwards props up reverse side coating belt body before drying baker is the second heeling condition, and the angle of reverse side coating belt body and horizontal plane is 30 ~ 60 degree.
In further technical scheme, described reverse side coating belt body after reverse side coating die head upwards props up reverse side coating belt body on rear side of reverse side coating die head is concordant with horizontal plane, and the angle that the reverse side on rear side of reverse side coating die head and reverse side coating die head is coated with belt body 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 reverse side coating belt body 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 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.
After adopting said structure, the present invention is compared to the prior art advantageously: the present invention has double spread function, eliminate front coating backing roller and front coating backing roller, structure is simple, and working (machining) efficiency is high, consumes energy low, coating evenly, coating quality is good, ensures 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.
Fig. 4 is the partial enlarged drawing at E place in Fig. 1.
Fig. 5 is the partial enlarged drawing at F place in Fig. 4.
In figure: 1, front coating die head 2, reverse side coating die head 3, drying baker 4, jockey pulley 5, front coating belt body 6, reverse side coating belt body 7, die head mount pad 8, upper lip 9, lower lip.
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. 5,1. a lithium battery material unicoater, comprise front coating die head 1, reverse side coating die head 2 and drying baker 3, front coating die head 1 and reverse side coating die head 2 are positioned at the charging aperture side of drying baker 3, it is characterized in that: also comprise
Some jockey pulleys 4, be positioned at the charging aperture side of drying baker 3, for drawing material strip and making material strip keep the tension force of setting, direction of advance material strip along material strip divides into front coating belt body 5 and reverse side coating belt body 6, front coating belt body 5 remains on the first heeling condition, and reverse side coating belt body 6 remains on the second heeling condition;
Front coating die head 1 is arranged on the side of front coating belt body 5, and the sloped-end of front coating die head 1 is resisted against the optional position in the front of front coating belt body 5;
Reverse side coating die head 2 is arranged between front coating die head 1 and drying baker 3, and reverse side coating die head 2 is positioned at the below of reverse side coating belt body 6, and the sloped-end of reverse side coating die head 2 is resisted against the optional position at the back side of reverse side coating belt body 6;
When being coated with battery material, reverse side is coated with belt body 6 and upwards props up by reverse side coating die head 2, and the material strip on rear side of reverse side coating die head 2 is the level of state, and material strip level enters drying baker 3.
The present invention 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, gap coating, zebra coating and full roll surface be coated with continuously.
In addition, present invention eliminates front coating backing roller and reverse side coating backing roller, simplify structure, during front coating, reverse side are coated with face and oven dry, the obverse and reverse being coated with the material strip 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 obverse and reverse is more than 0.32%.
Wherein, front coating die head 1 is obliquely installed, and front coating die head 1 is 5 ~ 20 degree with the angle a of horizontal plane; Reverse side coating die head 2 is obliquely installed, and reverse side coating die head 2 is 65 ~ 75 degree with the angle b of horizontal plane.Reverse side coating belt body 6 before reverse side coating die head 2 upwards props up reverse side coating belt body 6 before drying baker 3 is in the second heeling condition, and reverse side coating belt body 6 is 30 ~ 60 degree with the angle of horizontal plane.Reverse side coating belt body 6 after reverse side coating die head 2 upwards props up reverse side coating belt body 6 on rear side of reverse side coating die head 2 is concordant with horizontal plane, and the angle that reverse side coating die head 2 is coated with belt body 6 with the reverse side on rear side of reverse side coating die head 2 is 65 ~ 75 degree.After reverse side coating die head 2 upwards props up reverse side coating belt body 6, the angle g of the material strip of reverse side coating die head 2 both sides is 90 ~ 160 degree.
The side of reverse side coating die head 2 is provided with die head mount pad 7 and for regulating the lifting mechanism of mount pad height, die head mount pad 7 is fixed on lifting mechanism, and reverse side coating die head 2 is fixed on die head mount pad 7.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 2, repeats no more here.
Front coating die head 1 end is disposed with upper lip 8 and lower lip 9 along the direction of advance of material strip, reverse side coating die head 2 end is disposed with upper lip 8 and lower lip 9 along the direction of advance of material strip, upper lip 8 is 0.5 ~ 2mm higher than the height of lower lip 9, upper lip 8 and lower lip 9 preferred height difference scope are that upper lip 8 is 0.8 ~ 1.2mm higher than the height of lower lip 9.When being coated with, only the outer end of upper lip 8 tilts to be resisted against material strip, and lower lip 9 does not support material strip.
The outer end of upper lip 8 arranges bight always, the seamed edge in the right angle portion of upper lip 8 is resisted against material strip, the outer end of lower lip 9 is provided with bight always, stay between the right angle portion of lower lip 9 and material strip and establish a gap, for limiting the thickness of the battery material being coated on material strip reverse side, upper lip 8, between lower lip 9 and material strip, form the coat capacity of a battery material.When being coated with in front, the upper lip 8 of front coating die head 1 tilts to be resisted against the front of material strip, when reverse side is coated with, the upper lip 8 of reverse side coating die head 2 tilts to be resisted against material strip, the lower lip 9 of front coating die head 1 and reverse side coating die head 2 is not all resisted against material strip, the tension force of material strip is relied on to make the stable state remaining on setting between material strip and upper lip 8, upper lip 8, between lower lip 9 and material strip, form the coat capacity of a battery material, keep the stability of coating.
Owing to cancelling front coating backing roller and reverse side coating backing roller, when front coating and reverse side coating, the seamed edge in the right angle portion of upper lip 8 is only had to be resisted against material strip, upper lip 8 is linear contact lay with the junction of material strip, and in addition, the relation between material strip and upper lip 8 is changed over elasticity compressed by original rigid compressing, when fine particle on material strip encounters upper lip 8, fine particle skips upper lip 8 automatically, can not scratch material strip, enhances productivity and gives 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. a lithium battery material unicoater, comprise front coating die head (1), reverse side coating die head (2) and drying baker (3), front coating die head (1) and reverse side coating die head (2) are positioned at the charging aperture side of drying baker (3), it is characterized in that: also comprise
Some jockey pulleys (4), be positioned at the charging aperture side of drying baker (3), for drawing material strip and making material strip keep the tension force of setting, direction of advance material strip along material strip divides into front coating belt body (5) and reverse side coating belt body (6), front coating belt body (5) remains on the first heeling condition, and reverse side coating belt body (6) remains on the second heeling condition;
Front coating die head (1) is arranged on the side in front coating belt body (5), and the sloped-end of front coating die head (1) is resisted against the optional position in the front in front coating belt body (5);
Coating die head (1) end, described front is disposed with upper lip (8) and lower lip (9) along the direction of advance of material strip, reverse side coating die head (2) end is disposed with upper lip (8) and lower lip (9) along the direction of advance of material strip, upper lip (8) is 0.5 ~ 2mm higher than the height of lower lip (9), when being coated with, only the outer end of upper lip (8) tilts to be resisted against material strip, and lower lip (9) does not support material strip;
Reverse side coating die head (2) is arranged between front coating die head (1) and drying baker (3), reverse side coating die head (2) is positioned at the below of reverse side coating belt body (6), and the sloped-end of reverse side coating die head (2) is resisted against the optional position at the back side of reverse side coating belt body (6);
When being coated with battery material, reverse side is coated with belt body (6) and upwards props up by reverse side coating die head (2), and the material strip of reverse side coating die head (2) rear side is the level of state, and material strip level enters drying baker (3).
2. a kind of lithium battery material unicoater according to claim 1, is characterized in that: described front coating die head (1) is obliquely installed, and front coating die head (1) is 5 ~ 20 degree with the angle of horizontal plane; Reverse side coating die head (2) is obliquely installed, and reverse side coating die head (2) is 65 ~ 75 degree with the angle of horizontal plane.
3. a kind of lithium battery material unicoater according to claim 1, it is characterized in that: described reverse side coating belt body (6) before reverse side coating die head (2) upwards props up reverse side coating belt body (6) before drying baker (3) is in the second heeling condition, and reverse side coating belt body (6) is 30 ~ 60 degree with the angle of horizontal plane.
4. a kind of lithium battery material unicoater according to claim 1, it is characterized in that: reverse side coating belt body (6) of described reverse side coating die head (2) rear side after reverse side coating die head (2) upwards props up reverse side coating belt body (6) is concordant with horizontal plane, and the angle that reverse side coating die head (2) is coated with belt body (6) with the reverse side of reverse side coating die head (2) rear side is 65 ~ 75 degree.
5. a kind of lithium battery material unicoater according to claim 1, is characterized in that: the angle of the material strip of described reverse side coating die head (2) both sides after reverse side coating die head (2) upwards props up reverse side coating belt body (6) is 90 ~ 160 degree.
6. a kind of lithium battery material unicoater according to claim 1, it is characterized in that: the side of described reverse side coating die head (2) is provided with die head mount pad (7) and for regulating the lifting mechanism of mount pad height, die head mount pad (7) is fixed on lifting mechanism, and reverse side coating die head (2) is fixed on die head mount pad (7).
7. a kind of lithium battery material unicoater according to claim 6, is characterized in that: described lifting mechanism selects lead-screw drive mechanism, rack and pinion drive mechanism or cylinder-driven mechanism.
8. a kind of lithium battery material unicoater according to claim 1, is characterized in that: described upper lip (8) is 0.8 ~ 1.2mm higher than the height of lower lip (9).
9. a kind of lithium battery material unicoater according to claim 1, it is characterized in that: the outer end of described upper lip (8) arranges bight always, the seamed edge in the right angle portion of upper lip (8) is resisted against material strip, the outer end of lower lip (9) is provided with bight always, stay between the right angle portion of lower lip (9) and material strip and establish a gap, for limiting the thickness of the battery material being coated on material strip reverse side, upper lip (8), between lower lip (9) and material strip, form the coat capacity of a battery material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410286414.5A CN104028423B (en) | 2014-06-24 | 2014-06-24 | A kind of lithium battery material unicoater |
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| CN201410286414.5A CN104028423B (en) | 2014-06-24 | 2014-06-24 | A kind of lithium battery material unicoater |
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| CN104028423A CN104028423A (en) | 2014-09-10 |
| CN104028423B true CN104028423B (en) | 2016-03-30 |
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| CN106111460B (en) * | 2016-08-31 | 2017-11-28 | 宜昌新成石墨有限责任公司 | Double spread system |
| CN107931005A (en) * | 2017-12-21 | 2018-04-20 | 佛山市金银河智能装备股份有限公司 | A kind of two-sided while extrusion coating machine |
| CN112246549A (en) * | 2020-11-13 | 2021-01-22 | 河源诚展科技有限公司 | Inclined coating device for photosensitive dry film and control method thereof |
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| FR2477909A1 (en) * | 1980-03-13 | 1981-09-18 | Pomeon Sarl | Cardboard tube coating feed - has tubular mandrel with housing forming chamber with pressure discharge ducts |
| JP2002151448A (en) * | 2000-11-13 | 2002-05-24 | Hitachi Chem Co Ltd | Cmp pad for cerium oxide polishing agent and method of polishing wafer |
| CN201291186Y (en) * | 2008-07-15 | 2009-08-19 | 深圳市澳佳胶带有限公司 | Double-side glue spreading machine |
| CN103230861A (en) * | 2013-04-07 | 2013-08-07 | 东莞市海中机械有限公司 | Extrusion type double-side coater |
| CN203935985U (en) * | 2014-06-24 | 2014-11-12 | 东莞市海中机械有限公司 | A kind of lithium battery material unicoater |
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Effective date of registration: 20170322 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. |