Introduction to the principle of blow molding machine

It is a company specializing in blow molding machines, mainly producing fully automatic and semi-automatic PET bottle blowing machines. The working principle of the bottle blowing machine is to first heat and inject plastic particles into preforms, and then blow the finished preforms through high-pressure air. At present, the mainstream material in the beverage filling industry is generally PET environmentally friendly plastic. Blowing can be divided into two steps. First, preheat the preform by irradiating it through an infrared high temperature lamp to heat and soften the body part of the preform. It should be noted that, in order to prevent the bottle mouth from being deformed due to high temperature, a cooling device needs to be installed on the machine. Then, blow molding, put the heated preform into the blow mold, carry out pre-blowing and high blowing respectively, and blow the preform into the desired bottle. In addition, multiple sets of molds can be made according to the needs of customers, so that one machine can produce a variety of bottles.

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