What is the process of the blow molding machine when blowing the bottle?

At present, most of the blow molding machines are still two-step blow molding machines, that is, the plastic raw materials must be made into preforms and then blown. Nowadays, environmentally friendly plastics made of PET are commonly used. The bottle blowing process is divided into two parts: 1. Preheating The preform is irradiated by a high-temperature lamp, and the body of the preform is heated and softened. In order to maintain the shape of the bottle mouth, the preform mouth does not need to be heated, so it is necessary to A certain cooling device is used to cool it. 2. Bottle blowing molding In this stage, the preheated preform is placed in the mold that has been prepared, high-pressure inflation is carried out in it, and the preform is blown and drawn into the desired bottle. 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 into the mold in the middle. Greatly accelerated the rate of production, of course, the price is higher than the semi-automatic.

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