Blow molding machine equipment application

Plastic hollow containers are widely used in beverage, medicine, cosmetics, food and chemical industries due to their light weight, low price, and high safety. They attract more manufacturers to choose plastic containers to replace glass containers. Now the most advanced equipment, molds and materials in the plastics industry are unfolding in front of us one by one. New technologies and new applications are emerging one after another. Looking at the field of plastic hollow molding is also fruitful. Blow molding machine is a kind of equipment that uses blow molding technology to make plastic particles into hollow containers. Nowadays, the more common models include one-time hollow extrusion blowers that use PP and PE, and use PET, PC or PP twice. Molded injection stretch blow molding machine equipment, as well as the newly developed multi-layer hollow extrusion blow and stretch blow molding.

At present, most of the blow molding machine equipment is still a two-step blow molding machine, that is, it is necessary to first make the plastic material into the preform, and then blow it. Nowadays, environmentally friendly plastics made of PET are commonly used. The blow molding machine uses the wind blown out of the machine to blow the plastic body into a certain shape of the cavity after the liquid plastic is sprayed out, and then the product is made. This kind of machine is called a blow molding machine. It is also a kind of blow molding machine, namely hydraulic blow molding machine.

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