Thin-film blow-molding machine capable of realizing replacement of mold head

Abstract

The invention discloses a thin-film blow-molding machine capable of realizing replacement of a mold head. The thin-film blow-molding machine comprises a rack and the mold head; during working of the blow-molding machine, a cylindrical film bubble is hung on the mold head; an air inflation pipe for inflating the film bubble and an air deflation pipe for deflating the film bubble are arranged on themold head; an air inflation solenoid valve and an air deflation solenoid valve are arranged on the air inflation pipe and the air deflation pipe respectively and are connected onto two output loops of a relay respectively; a laser sensor is connected onto an input loop of the relay and comprises an emitter and a receiver; the emitter and the receiver are arranged on sliding platforms of two sliding rails respectively; and a laser beam after the emitter and the receiver are focused is tangential with the outer wall of the film bubble. The thin-film blow-molding machine is ingenious in structural design, the dynamic equilibrium is kept by the aid of air inflation and air deflation, and the film bubble is maintained in a certain size, so that the product quality is improved; and the positionof the emitter and the position of the receiver can be adjusted, so that the applicability of the blow-molding machine is improved.

Description

technical field [0001] The invention relates to the field of film processing equipment, in particular to a film blowing machine with replaceable die heads. Background technique [0002] In the prior art, when the film blowing machine is blowing the film, the amount of gas in the bubble is the key factor to determine the size of the bubble. If the gas volume is too large, the bubble will expand and deform if the gas volume is too low. If the gas volume is too low, the bubble will be too small. Shrinkage and shriveling will greatly affect product quality, but the existing technology is manually adjusted and controlled. The adjustment is not timely and the accuracy is low, which wastes manpower and affects product quality. In addition, the die head of the blow molding machine can be replaced, and different die heads can blow out The diameters of the bubbles are not the same, and the fixed sensor that cannot be moved and adjusted cannot meet the demand. Contents of the inventi...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when the film blowing machine is blowing the film, the amount of gas in the bubble is the key factor to determine the size of the bubble. If the gas volume is too large, the bubble will expand and deform if the gas volume is too low. If the gas volume is too low, the bubble will be too small. Shrinkage and shriveling will greatly affect product quality, but the existing technology is manually adjusted and controlled. The adjustment is not timely and the accuracy is low, which wastes manpower and affects product quality. In addition, the die head of the blow molding machine can be replaced, and different die heads can blow out The diameters of the bubbles are not the same, and the fixed sensor that cannot be moved and adjusted cannot meet the demand

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