CN102745538A - Winding and unwinding equipment for ethylene-vinyl acetate (EVA) coating production line - Google Patents
Winding and unwinding equipment for ethylene-vinyl acetate (EVA) coating production line Download PDFInfo
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- CN102745538A CN102745538A CN2012102144361A CN201210214436A CN102745538A CN 102745538 A CN102745538 A CN 102745538A CN 2012102144361 A CN2012102144361 A CN 2012102144361A CN 201210214436 A CN201210214436 A CN 201210214436A CN 102745538 A CN102745538 A CN 102745538A
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- roll shaft
- shaft group
- eva
- unwinding
- glued membrane
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Abstract
The invention discloses winding and unwinding equipment for an ethylene-vinyl acetate (EVA) coating production line. The equipment comprises an unwinding roll shaft group arranged on an upper support and a winding roll shaft group positioned in the advancing direction of the unwinding roll shaft group, wherein the winding roll shaft group is arranged on a lower support. The equipment is characterized in that a static eliminator is arranged between the unwinding roll shaft group and the winding roll shaft group, and the static eliminator is arranged on the upper support close to the unwinding roll shaft group. According to the equipment, the static eliminator is arranged between the unwinding roll shaft group and the winding roll shaft group, so that bypass static electricity on the surface of an EVA coating is removed, the quality of the finished EVA coating is ensured, and secondary pollution is avoided.
Description
Technical field
The present invention relates to a kind of EVA glued membrane manufacturing line, the unwinding and rewinding equipment in particularly a kind of EVA glued membrane manufacturing line.
Background technology
Solar cell is if directly be exposed in the air, and its photoelectric transformation efficiency can descend very soon, loses practical value.Therefore, the research and development of the encapsulation material of solar cell are just very important.For reaching the purpose that is isolated from the outside; Adopt transparent, light aging resisting, adhesive property good, can bear that atmosphere changes and rubber-like ethylene-vinyl acetate copolymer (EVA) glued membrane is sealed solar battery sheet; And be bonded together with the levels protective material, constitute solar module.
EVA is the random high molecular compound of a kind of representative type; In its molecular structure; The irregular arrangement of substituent on strand, the configuration of unsymmetrical carbon is also inequality in the strand simultaneously, arranges also irregular; Therefore it be that a kind of crystallinity is less, polarity and the higher material of elasticity; It has good wellability when heating and melting in addition, has good flexibility, anti-stress cracking and adhesive property during cooling curing, is a kind of comparatively desirable material that can be used for solar cell package.
What the EVA film forming adopted is CMT, and whole production line generally includes mixing plant, extrusion equipment, film pressing device, side cut unit and retractable volume equipment, accomplishes batch mixing, material loading, extrudes, moulding, side cut, winding process.Wherein, Retractable volume equipment is last operating unit that the EVA glued membrane is produced; Finished product EVA glued membrane is adjusted the tension force of glued membrane through unreeling the unit earlier; Then the EVA glued membrane is packed up rolling, can not produce tractive force, reach desirable glued membrane elasticity, planeness the EVA glued membrane by the rolling unit.
Yet, in process of production, have generation of static electricity unavoidably, and after being with static on the finished product EVA glued membrane, in transportation, just be easy to foreign material such as dust, hair in the absorption, influence the normal use of EVA glued membrane, therefore, need before baling, remove.
Summary of the invention
Technical matters to above-mentioned existence the objective of the invention is: proposed the unwinding and rewinding equipment in a kind of EVA glued membrane manufacturing line, through the improvement of structure, avoided the problem of EVA glued membrane finished product static electrification, improved the end product quality of EVA glued membrane.
Technical solution of the present invention is achieved in that the unwinding and rewinding equipment in a kind of EVA glued membrane manufacturing line; Comprise being installed on and unreel the roll shaft group on the upper layer bracket; And be positioned at the rolling roll shaft group that unreels roll shaft group working direction side; Said rolling roll shaft group is installed on lower floor's frame, and said unreeling between roll shaft group and the rolling roll shaft group is provided with an X eliminator, and this X eliminator is installed on the said upper layer bracket that closely unreels roll shaft group place.
In the technique scheme, said X eliminator is made up of high voltage power generator and discharge electrode, and said discharge is the ion shank that is arranged in parallel with said rolling roll shaft group very, and these ion shank two ends are mounted on the said upper layer bracket through connecting element respectively.
In the technique scheme, the below of said X eliminator, said unreeling between roll shaft group and the rolling roll shaft group are provided with nip rolls, and said nip rolls down are installed on the bottom of upper bracket.
Because the utilization of technique scheme, the present invention compared with prior art has advantage:
1, is provided with an X eliminator unreeling between roll shaft group and the rolling roll shaft group among the present invention; After energising, be air ionization a large amount of negative ions through most advanced and sophisticated high-voltage corona discharge, make through the surperficial static neutralization of the EVA glued membrane here; EVA glued membrane behind the elimination surface electrostatic is packed up rolling by rolling roll shaft group again; Avoid the absorption of dust, hair in the transportation, prevented secondary pollution, guaranteed the quality of finished product EVA glued membrane;
2, nip rolls are set down, the EVA glued membrane is got into the rolling of rolling roll shaft group after the traction downwards again, assurance EVA glued membrane is guaranteed electrostatic efficiency from X eliminator side process.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Fig. 1 is the running condition structural representation in the embodiment of the invention one;
Fig. 2 is the side-looking structural representation (removal rack side plate) of Fig. 1.
Wherein: 1, upper layer bracket; 2, unreel the roll shaft group; 3, rolling roll shaft group; 4, lower floor support; 5, X eliminator; 6, cross bar; 7, following nip rolls; 8, EVA glued membrane.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further description:
Embodiment one: shown in Fig. 1～2; Unwinding and rewinding equipment in a kind of EVA glued membrane 8 manufacturing lines; Comprise being installed on unreeling roll shaft group 2 on the upper layer bracket 1, and be positioned at the rolling roll shaft group 3 that unreels roll shaft group 2 working direction sides, said rolling roll shaft group 3 is installed on the lower floor support 4; Said unreeling between roll shaft group 2 and the rolling roll shaft group 3 is provided with an X eliminator 5, and this X eliminator 5 is installed on the said upper layer bracket 1 that closely unreels roll shaft group 2 places.
As shown in Figure 1; Said upper layer bracket 1 and lower floor support 4 are a stepped frame; Unreel roll shaft group 2 and be installed on the top of upper layer bracket 1, rolling roll shaft group 3 is installed on the top of lower floor support 4, and the bottom of said upper layer bracket 1 is provided with cross bar 6; The below of said X eliminator 5, said unreeling between roll shaft group 2 and the rolling roll shaft group 3 are provided with nip rolls 7, and this time nip rolls 7 are installed on the said cross bar 6.
Said X eliminator 5 is made up of high voltage power generator and discharge electrode, and said discharge is the ion shank that is arranged in parallel with said rolling roll shaft group 3 very, and these ion shank two ends are mounted on the said upper layer bracket 1 through connecting element respectively.
In use, the EVA glued membrane 8 after cutting edge is admitted to and unreels roll shaft group 2 places, realizes the adjustment to EVA glued membrane 8 tension force; Then down, behind X eliminator 5 sides, be around in down on the nip rolls 7; Upwards come rolling roll shaft group 3 places at last, be retracted to volume, send into multiple package position.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. the unwinding and rewinding equipment in the EVA glued membrane manufacturing line; Comprise being installed on and unreel the roll shaft group on the upper layer bracket; And be positioned at the rolling roll shaft group that unreels roll shaft group working direction side; Said rolling roll shaft group is installed on lower floor's frame, it is characterized in that: said unreeling between roll shaft group and the rolling roll shaft group is provided with an X eliminator, and this X eliminator is installed on the said upper layer bracket that closely unreels roll shaft group place.
2. the unwinding and rewinding equipment in the EVA glued membrane manufacturing line according to claim 1; It is characterized in that: said X eliminator is made up of high voltage power generator and discharge electrode; Said discharge is the ion shank that is arranged in parallel with said rolling roll shaft group very, and these ion shank two ends are mounted on the said upper layer bracket through connecting element respectively.
3. the unwinding and rewinding equipment in the EVA glued membrane manufacturing line according to claim 1; It is characterized in that: the below of said X eliminator, said unreeling between roll shaft group and the rolling roll shaft group are provided with nip rolls, and said nip rolls down are installed on the bottom of upper bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102144361A CN102745538A (en) | 2012-06-27 | 2012-06-27 | Winding and unwinding equipment for ethylene-vinyl acetate (EVA) coating production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102144361A CN102745538A (en) | 2012-06-27 | 2012-06-27 | Winding and unwinding equipment for ethylene-vinyl acetate (EVA) coating production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102745538A true CN102745538A (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102144361A Pending CN102745538A (en) | 2012-06-27 | 2012-06-27 | Winding and unwinding equipment for ethylene-vinyl acetate (EVA) coating production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102745538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246237A (en) * | 2015-10-29 | 2016-01-13 | 江苏利特尔绿色包装股份有限公司 | PET coater static electricity online elimination device |
-
2012
- 2012-06-27 CN CN2012102144361A patent/CN102745538A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105246237A (en) * | 2015-10-29 | 2016-01-13 | 江苏利特尔绿色包装股份有限公司 | PET coater static electricity online elimination device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |