CN104028423A - Lithium battery material double-sided coating machine - Google Patents
Lithium battery material double-sided coating machine Download PDFInfo
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- CN104028423A CN104028423A CN201410286414.5A CN201410286414A CN104028423A CN 104028423 A CN104028423 A CN 104028423A CN 201410286414 A CN201410286414 A CN 201410286414A CN 104028423 A CN104028423 A CN 104028423A
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Abstract
The invention discloses a lithium battery material double-sided coating machine which comprises a front coating die head, a reverse coating die head, a drying box and multiple tension rollers, wherein a front coating strip is kept in a first inclined state; a reverse coating strip is kept in a second inclined state; the end of the front coating die head is inclined to be pressed against any position on the front side of the front coating strip; the end of the reverse coating die head is inclined to be pressed against any position of the back of the reverse coating strip. The lithium battery material double-sided coating machine has a double-sided coating function, a front coating back roller and a reverse coating back roller are omitted, the coating machine is simple in structure, high in processing efficiency, low in energy consumption, uniform in coating and high in coating quality, the surface density of battery materials coating the front and reverse sides of the strips is over 0.32 percent, and clearance coating, zebra coating and whole-roll-surface continuous coating can be realized.
Description
Technical field
The lithium battery material coating machine technical field that the present invention relates to have double spread function, especially relates to a kind of lithium battery material unicoater.
Background technology
Lithium battery material coating machine is used at material strip surface-coated lithium battery material, in order to improve coating efficiency and coating quality, developed at present 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 number is that " 201020699886.0 ", patent name are " a kind of unicoater " as shown in Chinese invention patent, the each coating die head in two ends of drying baker, first carry out front coating and positive oven dry, material strip enters ground floor drying channel and dries after the coating die head of first end completes positive coating; Carry out again reverse side coating and reverse side and dry, 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, out after rewinding again.There is following shortcoming in it: 1, in the time carrying out reverse side coating, be coated with the material strip front of lithium battery material when through coating back flow roll, the battery material in material strip front is pressed in coating back flow roll, can weigh wounded, embossing or scrape the battery material that is coated on material strip front, affect coating quality, therefore, it can only carry out zebra coating, can not realize full roll surface and be coated with continuously, the battery material of the strip that it can only extend at the some length directions along material strip of the surface-coated of material strip.2, crawling is even.3, twice, the front of large 4., the material strip of machine energy consumption, by baking box, affects coating quality.
The second: two coating die heads are set, a front coating die head and a reverse side coating die head in drying baker the same side.If Chinese invention patent application number is that " 201210032483.4 ", patent name are " double spread device " as shown in Chinese invention patent application, first carry out front coating, material strip passes through from the pressing of front coating die head and positive coating back flow roll, front coating die head is horizontally disposed with, front coating die head is vertically resisted against the roll surface of positive coating back flow roll joint, and front coating die head level penetrates lithium battery material to the right.After completing positive coating, carry out again reverse side coating, material strip from the negative pressing place of coating die head and reverse side coating back flow roll passes through, reverse side coating die head vertically arranges, reverse side coating back flow roll 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 back flow roll 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, has solved in the first scheme and defect at the 3rd at the 4th.
But, it must configure coating back flow roll 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 back flow roll, and what guarantee was coated with normally carries out, and it exists following defect: 1, between material strip coating die head, can be involved in steam bubble, have a strong impact on coating quality, be coated on the battery material became uneven on material strip surface, weight inequality, coating precision is not high.2, the surperficial smoothness of material strip is limited; there are some fine particles in material strip surface; surface the out-of-flatness of material strip, in material strip tape transport process, the two sides of material strip is supported by coating back flow roll and coating die head rigidity respectively; the at a touch fine particle on material strip surface of the lip mouth of coating die head; will scratch material strip, 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 of producing is also on the low side.3, can only carry out zebra coating, can not realize full roll surface and be coated with continuously.Therefore be necessary to be improved.
Summary of the invention
The deficiency existing for prior art, the object of this invention is to provide a kind of lithium battery material unicoater, and it has double spread function, simple in structure, 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, comprises front coating die head, reverse side coating die head, drying baker and some jockey pulleys, and front coating die head and reverse side coating die head are positioned at charging aperture one side of drying baker,
Some jockey pulleys, be positioned at charging aperture one side of drying baker, for drawing material strip and making material strip keep the tension force of setting, divide into positive coating belt body and reverse side coating belt body along the direction of advance material strip of material strip, positive 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 a side of positive coating belt body, and the sloped-end of front coating die head is resisted against the positive optional position of positive coating belt body;
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;
Coating when battery material reverse side coating die head reverse side be coated with to belt body upwards prop up, the material strip of reverse side coating die head rear side is the level of state, material strip level enters drying baker.
Further, in 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.
Further in technical scheme, describedly upwards prop up the reverse side coating belt body before drying baker before reverse side coating belt body at reverse side coating die head and be the second heeling condition, reverse side coating belt body and the angle of horizontal plane are 30～60 to spend.
Further in technical scheme, described after reverse side coating die head is upwards propped up reverse side coating belt body the reverse side coating belt body of reverse side coating die head rear side concordant with horizontal plane, the angle that the reverse side of reverse side coating die head and reverse side coating die head rear side is coated with belt body is 65～75 to spend.
Further in technical scheme, described after reverse side coating die head is upwards propped up reverse side coating belt body the angle of the material strip of reverse side coating die head both sides be 90～160 degree.
Further, in technical scheme, a 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.
Further, in technical scheme, described lifting mechanism is selected lead-screw drive mechanism, rack and pinion drive mechanism or cylinder-driven mechanism.
Further in technical scheme, 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, only tilt to be resisted against the reverse side of material strip in the outer end of upper lip in when coating, lower lip is not supported material strip.
Further, in technical scheme, described upper lip is 0.8～1.2mm higher than the height of lower lip.
Further in technical scheme, the outer end of described upper lip arranges bight always, the seamed edge of the right angle portion of upper lip is resisted against material strip, the outer end of lower lip is provided with bight always, between the right angle portion of lower lip and material strip, stay and establish a gap, for limiting the thickness of the battery material that is coated on material strip reverse side, between upper lip, lower lip and material strip, form the coating space of a battery material.
Adopt after said structure, the advantage that compared to the prior art the present invention had is: the present invention has double spread function, positive coating back flow roll and positive coating back flow roll are cancelled, simple in structure, working (machining) efficiency is high, consumes energy low, coating evenly, coating quality is good, ensures that the surface density of battery material that is coated on 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.
Brief description of the drawings
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, positive 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, a 1. lithium battery material unicoater, comprises 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 charging aperture one side of drying baker 3, it is characterized in that: also comprise
Some jockey pulleys 4, be positioned at charging aperture one side of drying baker 3, for drawing material strip and making material strip keep the tension force of setting, divide into positive coating belt body 5 and reverse side coating belt body 6 along the direction of advance material strip of material strip, positive 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 a side of positive coating belt body 5, and the sloped-end of front coating die head 1 is resisted against the positive optional position of positive 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;
Coating when battery material reverse side coating die head 2 reverse side be coated with to belt body 6 upwards prop up, the material strip of reverse side coating die head 2 rear sides is the level of state, material strip level enters drying baker 3.
The present invention has double spread function, simple in structure, 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, the present invention has cancelled positive coating back flow roll and reverse side coating back flow roll, simplified structure, during front coating, reverse side are coated with face and dry, the obverse and reverse that is coated with the material strip of battery material no longer contacts any roller, can not cause secondary pollution to contact with secondary to battery material, ensure that the surface density of the battery material that is coated on 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.Upwards prop up the reverse side coating belt body 6 before drying baker 3 before reverse side coating belt body 6 at reverse side coating die head 2 and be the second heeling condition, reverse side coating belt body 6 is 30～60 degree with the angle of horizontal plane.After reverse side coating die head 2 is upwards propped up reverse side coating belt body 6, the reverse side coating belt body 6 of reverse side coating die head 2 rear sides is concordant with horizontal plane, and reverse side coating die head 2 is 65～75 degree with the angle of the reverse side coating belt body 6 of reverse side coating die head 2 rear sides.After reverse side coating die head 2 is upwards propped 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.
One 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 is selected lead-screw drive mechanism, rack and pinion drive mechanism or cylinder-driven mechanism.Lifting mechanism is prior art, as long as row lifting can be to reverse side coating die head 2 time repeats no more here.
Coating die head 1 end in 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 ends are 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 the poor scope of lower lip 9 preferred height are that upper lip 8 is 0.8～1.2mm higher than the height of lower lip 9.Only tilt to be resisted against the reverse side of material strip in the outer end of upper lip 8 in when coating, lower lip 9 is not supported material strip.
The outer end of upper lip 8 arranges bight always, the seamed edge of 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, between the right angle portion of lower lip 9 and material strip, stay and establish a gap, for limiting the thickness of the battery material that is coated on material strip reverse side, between upper lip 8, lower lip 9 and material strip, form the coating space of a battery material.While coating in front, the upper lip 8 of front coating die head 1 tilts to be resisted against the front of material strip, in the time that reverse side is coated with, the upper lip 8 of reverse side coating die head 2 tilts to be resisted against the reverse side of 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, rely on the tension force of material strip to make to remain between material strip and upper lip 8 stable state of setting, between upper lip 8, lower lip 9 and material strip, form the coating space of a battery material, keep the stability of coating.
Owing to cancelling positive coating back flow roll and reverse side coating back flow roll, in the time of front coating and reverse side coating, only there is the seamed edge of the right angle portion of upper lip 8 to be resisted against material strip, upper lip 8 is that line contacts with the junction of material strip, and in addition, the relation between material strip and upper lip 8 is changed over elasticity and compressed by original rigid compressing, when fine particle on material strip is encountered upper lip 8, fine particle is skipped upper lip 8 automatically, can not scratch material strip, enhances productivity and gives birth to and the rate product rate of product out.
Above content is only preferred embodiment of the present invention, for those of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, and this description should not be construed as limitation of the present invention.
Claims (10)
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 charging aperture one side of drying baker (3), it is characterized in that: also comprise
Some jockey pulleys (4), be positioned at charging aperture one side of drying baker (3), for drawing material strip and making material strip keep the tension force of setting, divide into positive coating belt body (5) and reverse side coating belt body (6) along the direction of advance material strip of material strip, positive 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 a side of positive coating belt body (5), and the sloped-end of front coating die head (1) is resisted against the positive optional position of positive coating belt body (5);
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);
Coating when battery material reverse side coating die head (2) reverse side be coated with to belt body (6) upwards prop up, the material strip of reverse side coating die head (2) rear side is the level of state, 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 die head (2) upwards prop up reverse side coating belt body (6) before drying baker (3) reverse side coating belt body (6) be before the second heeling condition, 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: describedly upwards prop up reverse side coating belt body (6) at reverse side coating die head (2) the reverse side coating belt body (6) of reverse side coating die head (2) rear side is concordant with horizontal plane afterwards, reverse side coating die head (2) and the angle of the reverse side coating belt body (6) of reverse side coating die head (2) rear side are 65～75 to spend.
5. a kind of lithium battery material unicoater according to claim 1, is characterized in that: described reverse side coating die head (2) upwards prop up reverse side coating belt body (6) afterwards the angle of the material strip of reverse side coating die head (2) both sides be 90～160 degree.
6. a kind of lithium battery material unicoater according to claim 1, it is characterized in that: a 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 is selected 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, it is characterized in that: described 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), only tilt to be resisted against the reverse side of material strip in the outer end of upper lip (8) in when coating, lower lip (9) is not supported material strip.
9. a kind of lithium battery material unicoater according to claim 8, is characterized in that: described upper lip (8) is 0.8～1.2mm higher than the height of lower lip (9).
10. a kind of lithium battery material unicoater according to claim 8, it is characterized in that: the outer end of described upper lip (8) arranges bight always, the seamed edge of 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, between the right angle portion of lower lip (9) and material strip, stay and establish a gap, for limiting the thickness of the battery material that is coated on material strip reverse side, between upper lip (8), lower lip (9) and material strip, form the coating space 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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| 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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| CN104028423A true CN104028423A (en) | 2014-09-10 |
| CN104028423B CN104028423B (en) | 2016-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111460A (en) * | 2016-08-31 | 2016-11-16 | 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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| 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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| CN104028423B (en) | 2016-03-30 |
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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. |