After the raw materials are put into the bottle blowing machine, due to the rotation, extrusion and stirring of the screw, the raw materials are melted and plasticized under a certain process temperature. The melted material is pushed by the screw After passing through the filter screen and splitter plate, it enters the forming mold, forms a simple shape in the mold, and is blown into the mold mouth of the bottle blowing machine. After the cylindrical membrane blank is filled with compressed air, it is blown into a bubble tube.
The bubble tube diameter is controlled by the amount of compressed air, which also determines the thickness of the film. The periphery of the bubble tube is cooled by the cooling air sprayed by the wind ring, so that the bubble tube film can be fully cooled, cooled and solidified while being pulled by the traction roller. The forward moving bubble tube is compressed after entering the herringbone plate, and then sent to the coiler after being compressed and pulled by the traction roller to complete the manufacturing of the blown film of the bottle blowing machine.