The principle of PET blow molding machine
At present, most blow molding machines are still two-step blow molding machines, that is, plastic raw materials are made into preforms before blowing. Environmentally friendly plastics made of PET are now commonly used. The blowing process of the PET blow molding machine is divided into two parts: 1. Preheating. The preform (preform) is irradiated with an infrared high temperature lamp to heat and soften the body part of the preform. In order to maintain the shape of the bottle mouth, the preform mouth does not need to be heated, so a certain cooling device is required to cool it. 2. Blow molding. At this stage, the preheated preform is placed in a blow mold, and the interior of the preform is inflated with high pressure. Blow and draw the preform (preform) of the PET bottle blowing machine equipment into the desired bottle. The automatic bottle blowing machine combines the two operations of blowing through the operation of the manipulator, which saves the process of manually placing the preheated preform into the blow mold in the middle, and greatly speeds up the production rate.
What is the production process of the blow molding machine?
1. Preheating The preform (preform) is irradiated by an infrared high temperature lamp, and the body part of the preform (preform) is heated and softened. In order to maintain the shape of the bottle mouth, the preform (preform) mouth is not It needs to be heated, so it needs a certain cooling device to cool it. 2. Blow molding In this stage, the preheated preforms (preforms) are placed in the blow molds that have already been prepared, high-pressure inflation is carried out in them, and the preforms (preforms) are blown and drawn into the required bottles. Blow molding machines on the market are generally divided into two types: automatic and semi-automatic. The automatic bottle blowing machine completes the two blowing operations together through the operation of the manipulator, eliminating the process of manually placing the preheated preform (embryo) into the blow mold in the middle. Greatly accelerated the rate of production, of course, the price is higher than the semi-automatic. The company mainly produces automatic blow molding machines
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need fuel for energy,while pet bottle making machine manufacturers do not.