Lower blowing device in respiration hood production line

Abstract

The invention relates to a lower blowing device in a respiration hood production line. The lower blowing device comprises two guide rails arranged on an opening and closing mold bracket and a front and back moving plate; slide blocks are arranged at the lower parts of two ends of the front and back moving plate; the slide blocks are connected with the guide rails; return springs are arranged on the guide rails positioned at two sides of the slide blocks; an up and down moving plate is arranged above the front and back moving plate; an up and down cylinder is vertically arranged in the front and back moving plate; the cylinder body of the up and down cylinder is connected with the front and back moving plate; a telescopic rod of the up and down cylinder is connected with the up and down moving plate; two supporting guide rods are transversely arranged in the up and down moving plate; two supporting slide blocks are arranged on the supporting guide rods; a double-output shaft cylinder is arranged between the two supporting slide blocks; two telescopic rods of the double-output shaft cylinder are connected with the two supporting slide blocks respectively; and blowing pins are arranged above the two supporting slide blocks respectively. The lower blowing device is suitable for the respiration hood production line, is arranged below a die, can improve the work efficiency, and can prevent a blank positioned in the die from being stuck.

Description

technical field [0001] The invention relates to the technical field of respiratory mask production equipment, in particular to an air blowing device matched with a mold in a respiratory mask production line. Background technique [0002] Respiratory masks are used in conjunction with oxygen and other equipment to help patients breathe. The raw material is PVC (polyvinyl chloride) material for medical use. PVC material is a non-crystalline material that is non-flammable, high-strength, and weather-resistant. and excellent geometric stability. [0003] When making a breathing mask, the PVC material is extruded by the extrusion device and then enters the die head, and the billet coming out of the die head is put into the mold, and then the mold is moved so that the joint between the billet in the die head and the billet in the mold can be Carry out cutting, and then use the blowing device to blow air inside the blank, so that the inside of the blank is stretched, and then perf...

AI Technical Summary

Problems solved by technology

Its disadvantage is: since the blowing device is set above the mold and conflicts with the position of the die head, it must wait for the mold to move and cut off the blank before inserting it into the blank for blowing, which affects work efficiency

Moreover, during the time period when the mold is moving and cutting the blank, the blank in the mold is prone to sticking, which seriously affects the quality of the product.

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