Hebei Sanqing Machinery Manufacture Co., Ltd.

For Ice Pop tubes,Plastic bottle ,Ball pits balls, Jerry cans

Home > News > Content
Working Principle Of Blow Moulding Machine
- Mar 14, 2018 -

Blow molding machine can be heated to the molding of preformed products, and then into the mold blow molding, this method is mainly used for high-speed and high production of pet bottles and Bopp bottle production, that is, two-step process, blow molding can also be combined with injection molding process into a pull-blow machine, which is also the production of pet containers commonly used methods Plastic in the screw extruder is melted and quantitatively extruded, and then formed through the mouth film, and then the wind ring cooling, and then the traction machine at a certain speed traction, winding machine winding it into a volume.

The liquid plastic spray out, the use of the wind blowing out of the machine, the plastic body blown to a certain shape of the mold cavity, thus making products, this machine is called blow molding machine. The plastic billet is hot in the open mold, after the closed mold immediately in the mold into the compressed air, so that plastic parison blown and close to the mold wall, after cooling demoulding, that is, a variety of hollow products. Blow molding Film manufacturing process in principle and blow molding hollow products very similar, but it does not use molds, from the plastic processing technology classification of the angle, blow molding film molding process is usually included in extrusion.