Repeated blow molding transformation device for blow molding system of blow molding machine and control method of repeated blow molding transformation device

Abstract

The invention belongs to the technical field of blow molding of drinking water buckets, and discloses a repeated blow molding transformation device of a blow molding system of a blow molding machine and a control method thereof.The repeated blow molding transformation device of the blow molding system of the blow molding machine is provided with a circulation time relay, the time relay is connected with a third Ka intermediate relay, and the third Ka intermediate relay is connected with a second Ka intermediate relay; the second Ka intermediate relay is connected with the first Ka intermediate relay. The second Ka intermediate relay is connected through an electromagnetic valve A, the electromagnetic valve A is connected with an electromagnetic valve B, and the electromagnetic valve B is connected with the first Ka intermediate relay; and the first Ka intermediate relay, the second Ka intermediate relay, the third Ka intermediate relay and the circulation time relay are respectively connected with the blowing control power supply. The time control switch is additionally arranged on the blow molding opening control circuit switch, so that the control precision of the temperature, the pressure range and the blowing instantaneous flow is improved; the method is low in tolerance rate and high in equipment maintenance frequency.

Description

technical field [0001] The invention belongs to the technical field of drinking water bucket blow molding, and in particular relates to a blow molding machine blow molding system repeated blow molding transformation device and a control method thereof. Background technique [0002] At present, the existing technology is one-time injection stretch blow molding. Among them, blow molding is also called hollow blow molding, a rapidly developing plastic processing method. The blow molding process began to be used to produce low-density polyethylene vials during World War II. In the late 1950s, with the birth of high-density polyethylene and the development of blow molding machines, blow molding technology has been widely used. The volume of the hollow container can reach thousands of liters, and some production has adopted computer control. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow cont...

AI Technical Summary

Problems solved by technology

However, in the prior art, when the PC drinking water bucket blank is injection stretch blow molded, the bucket is prone to failure due to adhesion to the mold, resulting in substandard shape or even rupture.

[0003] Through the above analysis, the existing problems and defects of the prior art are as follows: in the prior art, when the PC drinking water bucket blank is injection-stretch-blow molded, the bucket is likely to be substandard or even broken due to adhesion to the mold.

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