CN202765936U

CN202765936U - Winding and unwinding equipment for EVA adhesive film production line

Info

Publication number: CN202765936U
Application number: CN 201220303919
Authority: CN
Inventors: 朱丹华
Original assignee: SUZHOU SHUOER NEW MATERIAL CO Ltd
Current assignee: SUZHOU SHUOER NEW MATERIAL CO Ltd
Priority date: 2012-06-27
Filing date: 2012-06-27
Publication date: 2013-03-06
Anticipated expiration: 2022-06-27

Abstract

The utility model discloses winding and unwinding equipment for an EVA (Ethylene Vinyl Acetate) adhesive film production line. The winding and unwinding equipment comprises an unwinding roller shaft group and a winding roller shaft group, wherein the unwinding roller shaft group is mounted on an upper layer bracket; the winding roller shaft group is positioned on one side where an unwinding roller shaft group advances; and a winding roller shaft group is mounted on a lower layer bracket. The winding and unwinding equipment is characterized in that a static electricity eliminator is arranged between the unwinding roller shaft group and a winding roller shaft group, and is mounted at a position of the upper layer bracket, which is close to the unwinding roller shaft group. By arranging the static electricity eliminator between the unwinding roller shaft group and the winding roller shaft group, static electricity passing by the surface of EVA adhesive film can be removed, the quality of finished EVA adhesive film is guaranteed, and secondary pollution is avoided.

Description

Unwinding and rewinding equipment in the EVA glued membrane manufacturing line

Technical field

The utility model relates to a kind of EVA glued membrane manufacturing line, particularly the unwinding and rewinding equipment in a kind of EVA glued membrane manufacturing line.

Background technology

If solar cell directly is exposed in the air, 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 atmosphere and change and have elastomeric ethylene-vinyl acetate copolymer (EVA) glued membrane solar battery sheet is sealed; and be bonded together with the levels protective material, consist of solar module.

EVA is a kind of typical random high molecular compound, in its molecular structure, the irregular arrangement of substituent on strand, the configuration of unsymmetrical carbon is not identical yet in the strand simultaneously, arrange 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, having 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 extrusion forming process, and whole production line generally includes mixing plant, extrusion equipment, film pressing device, side cut unit and retractable volume equipment, finishes 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 by unwinding unit first, then by rolling unit the EVA glued membrane is packed up rolling, can not produce tractive force to the EVA glued membrane, reach desirable glued membrane elasticity, planeness.

Yet, in process of production, have unavoidably generation of static electricity, and after being with upper static on the finished product EVA glued membrane, in transportation, just be easy to the foreign material such as dust, hair in the absorption, affect the normal use of EVA glued membrane, therefore, need to before baling, remove.

Summary of the invention

For the technical matters of above-mentioned existence, the purpose of this utility model is: proposed the unwinding and rewinding equipment in a kind of EVA glued membrane manufacturing line, by 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 utility model 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 wind-up roll shaft group that unreels roll shaft group working direction side, described wind-up roll shaft group is installed on lower floor's frame, described unreeling between roll shaft group and the wind-up roll shaft group is provided with an X eliminator, and this X eliminator is installed on the described upper layer bracket that closely unreels roll shaft group place.

In the technique scheme, described X eliminator is comprised of high voltage power generator and discharge electrode, and described discharge is an ion shank that is arranged in parallel with described wind-up roll shaft group very, and these ion shank two ends are mounted on the described upper layer bracket through connecting element respectively.

In the technique scheme, the below of described X eliminator, described unreeling between roll shaft group and the wind-up roll shaft group are provided with nip rolls, and described lower nip rolls are installed on the bottom of upper bracket.

Because the utilization of technique scheme, the utility model compared with prior art has following advantages:

1, is provided with an X eliminator unreeling between roll shaft group and the wind-up roll shaft group in the utility model, after energising, be air ionization a large amount of negative ions by most advanced and sophisticated high-voltage corona discharge, so that through the static neutralization on herein EVA glued membrane surface, EVA glued membrane behind the elimination surface electrostatic is packed up rolling by the wind-up 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, lower nip rolls are set, the EVA glued membrane is entered the rolling of wind-up 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 solutions of the utility model are described further:

Fig. 1 is the use status architecture schematic diagram among the utility model embodiment 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, wind-up roll shaft group; 4, lower floor support; 5, X eliminator; 6, cross bar; 7, lower nip rolls; 8, EVA glued membrane.

The specific embodiment

The utility model will be further described below in conjunction with drawings and Examples:

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 and unreel roll shaft group 2 on the upper layer bracket 1, and be positioned at the wind-up roll shaft group 3 that unreels roll shaft group 2 working direction sides, described wind-up roll shaft group 3 is installed on the lower floor support 4, described unreeling is provided with an X eliminator 5 between roll shaft group 2 and the wind-up roll shaft group 3, this X eliminator 5 is installed on the described upper layer bracket 1 that closely unreels roll shaft group 2 places.

As shown in Figure 1, described upper layer bracket 1 is a stair-stepping frame with lower floor support 4, unreel the top that roll shaft group 2 is installed on upper layer bracket 1, wind-up roll shaft group 3 is installed on the top of lower floor support 4, the bottom of described upper layer bracket 1 is provided with cross bar 6, the below of described X eliminator 5, described unreeling are provided with nip rolls 7 between roll shaft group 2 and the wind-up roll shaft group 3, this time nip rolls 7 are installed on the described cross bar 6.

Described X eliminator 5 is comprised of high voltage power generator and discharge electrode, and described discharge is an ion shank that is arranged in parallel with described wind-up roll shaft group 3 very, and these ion shank two ends are mounted on the described 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 on the lower nip rolls 7, upwards come at last wind-up roll shaft group 3 places, be retracted to volume, send into multiple package position.

Above-described embodiment only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage that is familiar with technique can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in the protection domain of the present utility model.

Claims

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 wind-up roll shaft group that unreels roll shaft group working direction side, described wind-up roll shaft group is installed on lower floor's frame, it is characterized in that: described unreeling between roll shaft group and the wind-up roll shaft group is provided with an X eliminator, and this X eliminator is installed on the described 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: described X eliminator is comprised of high voltage power generator and discharge electrode, described discharge is an ion shank that is arranged in parallel with described wind-up roll shaft group very, and these ion shank two ends are mounted on the described 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 described X eliminator, described unreeling between roll shaft group and the wind-up roll shaft group are provided with nip rolls, and described lower nip rolls are installed on the bottom of upper bracket.