Film blowing machineWill dry polyethylene particles added to the hopper, depend on the weight of the particles themselves from the hopper into the screw, when the aggregate after contact with thread oblique edge rotating slant edge face plastic produce and inclined faces the vertical edges of thrust, plastic particles move, goes on in the process, because the plastic and screw, plastic and barrel friction between the friction and collision between particles, but also gradually melt due to external heating cylinder.

Molten plastic by head die out from the die and approved by the wind ring cooling, blowing the herringbone board, drawing roller, winding will finished film rolled into a cylinder.Must carefully in the production operation, it is forbidden to film bubble bag around the traction roller and traction on the rubber roller, when cutting film, tool cutting on the surface of the guide roller, shall not be used to prevent the roll surface scratch, affect the film appearance.