Shutdown operation of three-layer co extrusion blown film machine

The working principle of a three-layer co extrusion film blowing machine is to use two film blowing machines and a three-layer co extrusion die head to blow plastic films. The surface and bottom layers share the same extruder, which we call A, and the other extruder extrudes the middle layer of the film, which we call B. The thin film blown out in this way forms A, B, and A three-layer co extrusion films. The ABA film blowing machine can be used to blow AAA and ABA films.

The three-layer co extrusion thin film production line adopts advanced technologies such as a new high-efficiency and low-energy consumption extrusion unit, IBC film bubble internal cooling system, ± 360 ° horizontal upward traction rotation system, photoelectric automatic correction device, fully automatic winding and film tension control, and computer screen automatic control system. Compared with similar equipment, it has the advantages of higher output, better product plasticization, low energy consumption, and simple operation, completely solving problems such as film ruffles and winding heads, and taking product quality to a new level. The produced film has high transparency, puncture resistance, high toughness, good low-temperature heat cutting performance, good composite fastness, and anti curling properties!

Shutdown operation of three-layer co extrusion blown film machine

1. Turn off the start and then reduce the speed of the inner, outer, and middle main motors to zero.

2. Turn off the fan speed, traction speed, rotate the mold head, and turn the winding button back to zero.

3. Turn off the heating of zones 1, 2, 3, 4, and 5 of the extruder, and heat zones 1, 2, and 3 of the die body.

4. Turn off the main power and air pump switch.

5. Open the rubber roller to prevent its denaturation and damage.

6. Change the network.

7. After completion, clean up the workshop debris and clean up the hygiene.

Even the most high-end plastic film blowing machine needs to be used every day, and it is impossible for it to be completely worn out, so it is still necessary to conduct regular inspections. Especially for parts that are prone to wear and tear, special attention should be paid to inspection. Before each use, it is also necessary to check if there are any problems with the power supply. This way, problems can be identified and dealt with in a timely manner, which naturally ensures that the equipment can be used for a longer period of time.

Blow blown film is actually a thin film that lies between biaxial oriented film and cast film. Double axis oriented films can also be produced using the blowing expansion method. As long as the temperature is appropriate, the blowing expansion ratio and traction ratio are appropriate, the bi-directional orientation can be roughly the same. When producing blown bulging films, if the traction speed is too fast and the difference between the same blown bulging ratio is too large, it may result in a significant difference between the longitudinal and transverse orientations. As a result, like the process of producing cracked fibers through unidirectional stretching, the transverse strength is low and it is easy to break.