A blown film machine is a mechanical device that heats and melts PE plastic particles before blowing them into a thin film.
Firstly, dry polyethylene particles are added to the hopper and enter the screw by the weight of the particles themselves. When the particles come into contact with the threaded edges, the rotating edges generate a thrust perpendicular to the plastic surface, pushing the plastic particles forward. During the pushing process, due to the friction between the plastic and the screw, the plastic and the barrel, as well as the collision friction between the particles, and the external heating of the barrel, the particles gradually dissolve. The molten plastic is filtered through the machine head to remove impurities and comes out of the mold mouth. After being blown and cooled by the air ring, it is pressed by a herringbone plate and rolled into a cylinder by a traction roller.
