Introduction to the structural composition of blown film machine

The blown film machine is mainly composed of an extruder, a machine head, a die head, a cooling device, a foam stabilizer, a herringbone plate, a traction roller, a winding device, etc.
1. The blown film machine is mainly composed of a screw, a barrel and hopper, a reducer, and a driving motor. The driving motor adopts an electromagnetic speed regulating motor (or a variable frequency ordinary motor can also be used), which drives the reducer through a belt drive to make the screw rotate in the barrel; The plastic that melts the plastic particles in the hopper under external heating is extruded from the mold head and mouth through three-way filtration.
2. The three-way valve consists of a filter screen, a filter plate, and a three-way cover.
3. Mold head.
4. The blown film machine is composed of a cooling device, which includes a cooling air ring, air duct, blower, etc.
5. Traction, consisting of main components such as traction frame, herringbone plate, traction roller, winding mechanism, and traction motor
6. For the electrical control part, most units are equipped with a unit operation cabinet. The main power supply is turned on by pressing the main button, and the motor main switch is turned on. The body and three-way, as well as the electric heating of each button of the mouth mold, can be controlled separately through the sub button switch. The two sets of coils in the key part are automatically measured and controlled by thermocouples. During normal production, the temperature can be automatically controlled to ensure stable and reliable production process. There are many types of blown film machines, including PE, POF, and so on.
That's all for the introduction of the blown film machine. Using brand new particles to blow out new material, the color is uniform, clean, and the bag is stretched well. Some people also use recycled plastic bags to make particles, which are usually called old materials. When making particles, they are usually gray in color. When making bags, pigments are usually added, resulting in uneven coloring, brittleness, and easy breakage. The price is also relatively low.