CN204130569U - The manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries - Google Patents
The manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries Download PDFInfo
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- CN204130569U CN204130569U CN201420432401.XU CN201420432401U CN204130569U CN 204130569 U CN204130569 U CN 204130569U CN 201420432401 U CN201420432401 U CN 201420432401U CN 204130569 U CN204130569 U CN 204130569U
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- adhesive film
- eva adhesive
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model relates to a kind of manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries, comprise be arranged in series the first active section (A), front haulage section (B), knurled segment (D), sizing section (E), cooling section (F), segmentation section (G), thickness measuring section (H), middle traction section (I), storing section (J), rear haulage section (K), friction rolling section (L) with center winding section (M), described first active section (A) comprises rolling equipment and casting apparatus; Be in series with the second active section (C) between described front haulage section (B) and knurled segment (D), described second active section (C) is made up of the warm-up mill group of some groups of alternate settings and chill roll group.Manufacturing equipment compact conformation described in the utility model, rationally, cost is low, and the manufacture of EVA adhesive film is simple, and the effective shrinkage controlling EVA film in manufacturing process, production efficiency is high.
Description
Technical field
The utility model relates to film fabrication techniques field, especially a kind of manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries.
Background technology
Silicon wafer is packaged between face glass and backboard by upper and lower two-layer polymeric laminate by solar cell usually.Ethene-vinyl acetate vinegar copolymer (EVA) is the packaging adhesive film material of the solar cell of main flow.Solar cell EVA packaging adhesive film in heat pressing process process easily shrinks, and this is mainly due to EVA macromolecular chain generation orientation in tape casting process, and the result that segment is lax occurs again when being heated.The shrinkage of EVA adhesive film needs the strict index controlled, because when shrinkage is larger, shrinkage stress easily makes backboard generation deformation, even makes face glass ftracture, thus causes assembly to be scrapped.Although adjustment EVA adhesive film formula can be passed through, and improves processing technology, carry out the shrinkage that the methods such as annealing in process reduce EVA packaging adhesive film, usually cause production efficiency to reduce, energy consumption and cost increase.
As utility model patent 200910177161.7 discloses " a kind of production technology of solar cell package EVA adhesive film ", it adopts the method extruding of calendering processing to make EVA adhesive film, overcome because casting and stretching is shaped easily produce the problem of distortion, thus the EVA adhesive film that obtained shrinkage is less.As utility model patent 201110390480.3 discloses " a kind of production technology of EVA film adhesive for solar cell package ", it adopts high-speed mixer, double screw extruder and three roller curtain coating cooling forming techniques, first casting roller is antiseized silica gel roller, second roller is frosted iron roll, 3rd roller is embossing silica gel roller, utilize the hot cushioning effect of first roller to efficiently reduce glued membrane and cool the stress caused, glued membrane shrinkage is controlled within 2%.As utility model patent 201110138433.X discloses " low-shrinkage lamellar composite EVA adhesive film used for encapsulation of solar battery ", it discloses a kind of layered composite structure film, be made up of successively upper strata eva film, core layer film and lower floor's eva film, its core layer film is PET, PBT, PETG or PEN film, the shrinkage of this film obviously declines, can be less than 0.5%, but corresponding manufacturing cost also significantly increases, manufacturing process and equipment are more complicated.
The utility model people is through finding the research of the extrudate flow waterline of existing EVA adhesive film, existing streamline is most with reference to general thin manufacture method, after EVA adhesive film is extruded, immediately annular knurl and cooling and shaping are carried out to film, due to the macromolecular chain structure that EVA material is special, cause its shrinkage to be far longer than general thin, therefore manufacturer often to anneal to EVA adhesive film afterwards annular knurl is shaping.If but annealing temperature is at 40 degrees centigrade, then can not obtain the effect of desirable reduction shrinkage, the shrinkage of EVA adhesive film is usually about 5%; If annealing temperature is too high, then can destroy annular knurl, cause rolling difficulty or intermembranous adhesion.
Utility model content
The applicant is difficult to meet the shortcomings such as instructions for use for the shrinkage index of above-mentioned existing EVA film, sets about to the improvement of technique and equipment, provides a kind of manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries, thus controls the shrinkage of EVA film.
The technical scheme that the utility model adopts is as follows:
A kind of manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries, comprise the first active section A, front haulage section B, the knurled segment D be arranged in series, shape section E, cooling section F, segmentation section G, thickness measuring section H, middle traction section I, storing section J, rear haulage section K, friction rolling section L and center winding section M, described first active section A comprises rolling equipment and casting apparatus; Be in series with the second active section C between described front haulage section B and knurled segment D, described second active section C is made up of the warm-up mill group of some groups of alternate settings and chill roll group.
Further improvement as technique scheme:
Described second active section C comprises each section of spaced warm-up mill group C1, chill roll group C2, warm-up mill group C3, chill roll group C4 and warm-up mill group C5 successively;
Each warm-up mill group C1, C3, C5 and chill roll group C2, C4 form by four ~ eight conveying roller arranged adjacent, and often propping up the circulation of conveying roller central authorities has by the heating water of die heater control temperature or cooling water.
The beneficial effects of the utility model are as follows:
Manufacturing equipment compact conformation described in the utility model, rationally, cost is low, and the manufacture of EVA adhesive film is simple, and the effective shrinkage controlling EVA film in manufacturing process, production efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model pipelining equipment.
Wherein: 1, extrusion die; 2, casting roller; 3, the first stack; 4, the second stack; 5, EVA adhesive film; 6, conveying roller; A, the first active section; B, front haulage section; C, the second active section; D, knurled segment; E, sizing section; F, cooling section; G, segmentation section; H, thickness measuring section; I, middle traction section; J, storing section; K, rear haulage section; L, friction rolling section; M, center winding section.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, the manufacturing equipment of the low-shrinkage EVA adhesive film used for solar batteries of the present embodiment, comprise the first active section A, front haulage section B, the knurled segment D be arranged in series, shape section E, cooling section F, segmentation section G, thickness measuring section H, middle traction section I, storing section J, rear haulage section K, friction rolling section L and center winding section M, the first active section A comprises rolling equipment and casting apparatus; Be in series with the second active section C between front haulage section B and knurled segment D, the second active section C is made up of the warm-up mill group of some groups of alternate settings and chill roll group.
Second active section C comprises each section of spaced warm-up mill group C1, chill roll group C2, warm-up mill group C3, chill roll group C4 and warm-up mill group C5 successively.
Each warm-up mill group C1, C3, C5 and chill roll group C2, C4 form by four ~ eight conveying roller 6 arranged adjacent, and often propping up the circulation of conveying roller 6 central authorities has by the heating water of die heater control temperature or cooling water.Thus obtain different roll surface temperatures.And each conveying roller 6 is driven by independently bidirectional speed governing motor, motor speed carries out control and regulation by total control equipment with turning to.
In actual fabrication process, operating procedure is as follows:
The first step: the first active section A works: the EVA adhesive film 5 that extrusion die 1 is extruded is through casting roller 2 or the first stack 3 and the second stack 4;
Second step: EVA adhesive film 5 enters the second active section C by front haulage section B;
3rd step: complete the heating and cooling to EVA adhesive film 5 in the second active section C;
4th step: enter knurled segment D and annular knurl is carried out to EVA adhesive film 5 surface;
5th step: enter sizing section E and EVA adhesive film 5 is shaped;
6th step: enter cooling section F and the EVA adhesive film 5 of having shaped is cooled;
7th step: enter segmentation section G and EVA adhesive film 5 is split;
8th step: enter thickness measuring section H and one by one detect thickness is carried out to the EVA adhesive film 5 split;
9th step: the section of traction I, storing section J and rear haulage section K in then passing through successively;
Tenth step: enter center winding section M finally by friction rolling section L and complete EVA adhesive film 5 finished product.
In the first step: extrusion die 1 moves at casting roller 2 upper level, when moving to the circumferential upper part of casting roller 2 first quartile, carry out the tape casting preparation.
In the first step: extrusion die 1 moves at casting roller 2 upper level, when moving between casting roller 2 and the first stack 3, carry out rolling process preparation.
The tape casting described in the utility model prepares a kind of important method of thin-film ceramics, its process is, flows to base band by the ceramic size prepared from hopper top, forms biscuit by the relative motion of base band and scraper, under capillary effect, form the upper surface of brilliance.
Calendering formation described in the utility model is will the thermoplastics of plasticizing substantially, and roll extrusion in the roller of heat is also shaped to the method for sheet material or film, also can produce artificial leather (plastics and cloth or the composite article with paper).The plastics of calendering formation have polyvinyl chloride, polyethylene, ABS, polyvinyl alcohol etc., and are the most common with polyvinyl chloride.Rolled products is widely used as the sheet material etc. of agricultural film, packing film, sheet, indoor wall facing paper, floor and thermoforming.It is film within the scope of 0.05 ~ 0.30mm that rolling process produces thickness usually, the sheet of more than 0.30mm or sheet material.Products thickness is less than or greater than this scope, generally produces with extrusion blow molding processes or extrusion molding.The Breadth Maximum of rolled products is more than one of main method that 3m calendering formation is in plastics processing industry, and calendering production output is high, quality of item good.The utility model is by calendering or after curtain coating extrudes, the heating and cooling roller group of the alternate setting of many groups was increased before annular knurl, just the destressing object to EVA adhesive film can be realized by thermal cycle before annular knurl, thus the EVA adhesive film shrinkage entering annular knurl is reduced greatly, large contraction distortion can not be there is after annular knurl is shaping.
Heating and cooling roller group of the present utility model can according to the material of EVA adhesive film 5 thick and speed of production, the temperature of flexible bringing-up section and cooling section, thus obtain rational thermal cycling temperature value, to reach optimum destressing effect.Each conveying roller 6 all adopts bidirectional speed governing motor to drive, during trial-production therefore before volume production, can according to the sized data shrinkage from mold dimensions of actual measurement, and then by turning to, the adjustment of rotating speed, EVA adhesive film 5 is contacted with roll surface fully, thus obtains the treatment effect of rational thermal cycle destressing.Such as, if need EVA adhesive film 5 and roll surface sufficient heat exchange, then only need by contrary for turning to of adjacent two conveying rollers 6, then EVA adhesive film 5 is from the top of last conveying roller 6 around to the below of next conveying roller 6, be fed forward in wavy on the whole, contact-making surface and heat exchange significantly increase.And when not needing sufficient heat exchange, as long as by the rotating Vortex that turns to of adjacent two conveying rollers 6, then EVA adhesive film 5 is carried from the top of each conveying roller, be fed forward in plane on the whole, contact-making surface significantly reduces, and heat exchange also significantly reduces.Therefore, the utility model can adapt to the manufacturing of the EVA adhesive film of different thickness neatly.
Extrusion die 1 of the present utility model can move at casting roller 2 upper level, when moving to the circumferential upper part of casting roller 2 first quartile, can prepare EVA adhesive film 5 by the tape casting; If time between casting roller 2 and the first stack 3, then EVA adhesive film 5 can be prepared by rolling process.Thus, for different instructions for uses, the production technology of calendering or curtain coating can be selected neatly.
Such as carry out the production that thickness is the EVA adhesive film 5 of 0.4 ~ 0.7mm, the hauling speed 8m/min of streamline, the heating-up temperature of C1 section is 150 ~ 200 DEG C, the chilling temperature of C2 section is 25 ~ 35 DEG C, (C2, C4 are that cooling section temperature is the same, C1, C3, C5 each section of temperature is different, C5 to enter embossing before temperature can be higher.) by the test to final glued membrane, its shrinkage is <2%.
Describing above and often propping up roller is all that respective separate motors controls rotating speed, but wherein has part roller adjustable just to reverse, and embraces roller mode can make film part in conveying.
The utility model just carries out annealing in process before not yet embossing, adopts three sections to heat two sections of coolings, and in film carries out, often prop up roller all controllable speeds when annealing, and when annealing, adjustment rotating speed is to reach glued membrane contractive effect.
Anneal and after latter end heating, carried out embossing again, namely adopted cooling maturation after last embossing, carry out trimming via product width and arrive rewinding finished product again.
The utility model is exactly in heating three district, cools rollers all in twoth district and all can control rotating speed separately, and adopt elaborate servo to control motor, every district has independent die heater to control roll temperature, and the thermal treatment zone adopts far infrared fluorescent tube, and cooling zone adopts top and bottom blowing mode.
More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range, see claim, within protection range of the present utility model, can do any type of amendment.
Claims (3)
1. the manufacturing equipment of a low-shrinkage EVA adhesive film used for solar batteries, comprise be arranged in series the first active section (A), front haulage section (B), knurled segment (D), sizing section (E), cooling section (F), segmentation section (G), thickness measuring section (H), middle traction section (I), storing section (J), rear haulage section (K), friction rolling section (L) with center winding section (M), described first active section (A) comprises rolling equipment and casting apparatus; It is characterized in that: be in series with the second active section (C) between described front haulage section (B) and knurled segment (D), described second active section (C) is made up of the warm-up mill group of some groups of alternate settings and chill roll group.
2. the manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries as claimed in claim 1, is characterized in that: described second active section (C) comprises each section of spaced warm-up mill group (C1), chill roll group (C2), warm-up mill group (C3), chill roll group (C4) and warm-up mill group (C5) successively.
3. the manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries as claimed in claim 2, it is characterized in that: each warm-up mill group (C1, C3, C5) and chill roll group (C2, C4) form by four ~ eight conveying roller (6) arranged adjacent, often propping up the circulation of conveying roller (6) central authorities has by the heating water of die heater control temperature or cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420432401.XU CN204130569U (en) | 2014-08-01 | 2014-08-01 | The manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420432401.XU CN204130569U (en) | 2014-08-01 | 2014-08-01 | The manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204130569U true CN204130569U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420432401.XU Expired - Fee Related CN204130569U (en) | 2014-08-01 | 2014-08-01 | The manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries |
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| CN (1) | CN204130569U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437493A (en) * | 2016-05-27 | 2017-12-05 | 上海馨晔电子科技有限公司 | A kind of surface protection glued membrane being thinned for wafer |
| CN108749044A (en) * | 2018-04-10 | 2018-11-06 | 浙江祥邦科技股份有限公司 | A kind of heat treatment method of solar cell packaging adhesive film |
| CN113500757A (en) * | 2021-07-12 | 2021-10-15 | 苏州金韦尔机械有限公司 | Automatic production line for solar cell panel packaging film |
-
2014
- 2014-08-01 CN CN201420432401.XU patent/CN204130569U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437493A (en) * | 2016-05-27 | 2017-12-05 | 上海馨晔电子科技有限公司 | A kind of surface protection glued membrane being thinned for wafer |
| CN108749044A (en) * | 2018-04-10 | 2018-11-06 | 浙江祥邦科技股份有限公司 | A kind of heat treatment method of solar cell packaging adhesive film |
| CN108749044B (en) * | 2018-04-10 | 2020-07-28 | 浙江祥邦科技股份有限公司 | Heat treatment method of solar cell packaging adhesive film |
| CN113500757A (en) * | 2021-07-12 | 2021-10-15 | 苏州金韦尔机械有限公司 | Automatic production line for solar cell panel packaging film |
| CN113500757B (en) * | 2021-07-12 | 2022-01-21 | 苏州金韦尔机械有限公司 | Automatic production line for solar cell panel packaging film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lin Zhengjian Inventor after: Chen Huochuan Inventor before: Lin Zhenglian Inventor before: Chen Huochuan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20170801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |