What is a Blow Molding Machine
The blow molding machine is a machine that sprays out the liquid plastic and uses the wind blown out of the machine to blow the plastic body into a mold cavity of a certain shape to make a product.
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. The blow molding machine swells and clings to the inner wall of the mold, and after cooling and demoulding, various hollow products can be obtained.
The blow molding process was first used to produce low-density polyethylene vials, and with the birth of high-density polyethylene and the development of blow molding machines, blow molding technology has been widely used.
The volume of the hollow container can reach thousands of liters, and some production has adopted computer control. Plastic blow molding machines are suitable for blow molding plastics such as polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow containers are widely used as industrial packaging containers.