Blowing machine is a kind of equipment to make plastic granules into hollow containers through the blow molding process, the more common models include, the use of PP and PE one-time molding hollow extrusion blowing machine, the use of PET, PC or PP two-forming injection pull blow blow molding machine, and the newly developed multi-layer hollow extrusion blowing and stretch blow molding.
Most blow molding machines are still two-step blowing machines, that is, plastic raw materials must be made into preforms and then blown. Nowadays, environmentally friendly plastics made of PET are commonly used. Blow molding machine: is to spray out the liquid plastic, using the wind blowing out of the machine, the plastic body is blown to a certain shape of the mold cavity, so as to make a product, this 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 blank 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 introduced into the blank immediately after the mold is closed, so that the plastic blank is inflated and clings to the inner wall of the mold, and various hollow products are obtained after cooling and demolding.
