Front end die head mounting structure of EVA (ethylene vinyl-acetate copolymer) glue film extruder

Abstract

The invention discloses a front end die head mounting structure of an EVA (ethylene vinyl-acetate copolymer) glue film extruder. The front end die head mounting structure comprises a rack, and a pair of hoisting brackets connected with two ends at the top of a die head, and is characterized in that the hoisting bracket is connected with the rack through an extending frame, the extending frame is provided with a guide rod corresponding to the hoisting bracket, the hoisting bracket is composed of a left bracket and a right bracket respectively connected with a left die and a right die, the bracket is composed of a pulley in sliding connection with the guide rod, a pulley frame connected with two sides of the pulley, and a connecting rod connected with the pulley frame, and the connecting rod is connected with the top of the die head. By arranging the pulley on the extending frame, the relative moving or the opposite moving of the front die and the rear die are realized, the disassembling of the front die and the rear die are convenient when the die head is washed, the hoisting of the travelling crane is saved, and the use cost is reduced.

Description

technical field [0001] The invention relates to an EVA film production equipment, in particular to a front-end die head installation structure of an EVA film extruder. 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 config...

AI Technical Summary

Problems solved by technology

This process is cumbersome and requires the use of driving, which brings inconvenience to EVA plastic mold manufacturers and increases production costs.

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