What is a bottle blowing machine

The blow molding machine is a kind of equipment that makes plastic particles into hollow containers through the blow molding process. At present, the more common models include hollow extrusion blow machines that use PP and PE for one-time molding, and PET, PC or PP for two-time molding. Advanced injection stretch blow molding machines, as well as the newly developed multi-layer hollow extrusion blow molding and stretch blow molding.

At present, most blow molding machines are still two-step blow molding machines, that is, the plastic raw materials must first be made into preforms, and then blown. Nowadays, the environmentally friendly plastic made of PET is generally used. Blow molding machine: after the liquid plastic is sprayed out, the wind force blown out by the machine is used to blow the plastic body to a mold cavity of a certain shape to make a product. This kind of machine is called a blow molding machine. It is also a kind of blow molding machine, that is, hydraulic blow molding machine.

The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in the split mold while it is hot (or heated to a softened state), and compressed air is injected into the parison immediately after the mold is closed to blow the plastic parison. It swells and clings to the inner wall of the mold, and after cooling and demoulding, various hollow products can be obtained.