The film blowing machine heats and melts the plastic particles and blows them into a film. There are many types of blown film machines, such as PE, POF, PVC, etc. The new material is blown out with new particles, the color is called, clean, and the bag is stretched well.

Process principle

The dried polyethylene particles are added into the lower hopper, and the weight of the particles itself enters the screw from the hopper. When the pellets are in contact with the helical bevel of the thread, the rotating bevel faces the plastic to produce a thrust perpendicular to the beveled surface, and the plastic particles are Moving forward, during the transition, due to the friction between the plastic and the screw, the plastic and the barrel, and the collision between the particles, it is also gradually melted due to the external heating of the barrel. The molten plastic is filtered by the machine head to remove impurities from the die die, cooled by the air ring, inflated through the herringbone plate, the traction roller, and wound to wind the finished film into a cylinder.