Track tool for allowing EVA (ethylene vinyl acetate) adhesive film finished ring to roll

Abstract

The invention relates to a track tool for allowing an EVA (ethylene vinyl acetate) adhesive film finished ring to roll. The track tool is characterized by comprising a pair of handheld sleeves arranged at two ends of a central shaft of the finished ring in a sleeving manner and a pair of tracks which is erected on two sides of the finished ring in parallel at an interval and used for allowing the central shaft to roll, wherein continuous teeth are manufactured on the tracks; teeth similar to the continuous teeth are correspondingly manufactured on the surface, contacted with the tracks, of the central shaft; and the surface of each tooth on the tracks is covered with an elastic silica gel layer. According to the track tool provided by the invention, the central shaft located in the middle of the finished ring can roll on the tracks, so that the defect that the finished ring is not carried easily is solved; besides, continuous meshed teeth are manufactured on the tracks and the central shaft, thus, the condition of lateral inclination during the rolling process can be avoided; and finally, each tooth on the tracks is covered with the elastic silica gel layer, so that the problem of vibration and noise generated by rolling of the central shaft on the tracks is solved.

Description

technical field [0001] The invention relates to a track tool, in particular to a track tool for rolling a finished circle of EVA film. Background technique [0002] If the solar cell is directly exposed to the air, its photoelectric conversion efficiency will drop quickly and lose its practical value. Therefore, research and development of packaging materials for solar cells is very important. In order to achieve the purpose of isolation from the outside world, the solar cells are encapsulated with an ethylene-vinyl acetate copolymer (EVA) film that is transparent, resistant to light aging, has good adhesive properties, can withstand atmospheric changes, and is connected with the upper and lower layers. The protective materials are bonded together to make up the solar cell module. [0003] EVA is a typical random polymer compound. In its molecular structure, the arrangement of substituents on the molecular chain is irregular, and the configuration of asymmetric carbon atom...

AI Technical Summary

Problems solved by technology

[0005] At present, after the film is produced, it needs to be coiled into cylindrical shapes, and the cylindrical shape runs through the central axis, but the circles are formed into larger cylindrical shapes because they are heavy and difficult to move.

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