For the film blowing machine, it is required to have a lower temperature through the mold head section, but not lower than the viscous flow temperature, in order to facilitate film lifting and normal film blowing. When the melt comes out of the mold, it should have a certain viscosity to prevent phenomena such as film breakage and collapse. In general, it is about 10-30 degrees lower than the end of the homogenization section, and the temperature from the homogenization section to the mouth can also be considered as an equal temperature drop.

Multi layer co extrusion blown film machine is a film made by simultaneously extruding and laminating different raw material ratios through multiple die heads. It is generally used for high-end product packaging. Due to its good barrier properties, freshness, moisture resistance, frost resistance, oxygen resistance, and oil resistance, this film can be widely used for light and heavy packaging. Such as various fresh fruits, meat products, Pickled vegetables, fresh milk, liquid drinks, medical supplies, etc. The cost of this type of equipment is relatively high, and choosing a film blowing machine depends on the product requirements.

How to install the three-layer co extrusion blown film machine

1. When the discharge from the mold mouth of the film blowing machine is uniform and consistent, you can wear gloves and slowly pull the tube blank. At the same time, close the end of the tube blank, slightly open the intake control valve, and blow a small amount of compressed air into the center hole of the core rod. Then, carefully guide it through the stable foam holder and the herringbone plate, and thread it into the traction roller and guide roller until it is rolled up.

2. Heating the extruder body, head, mold head, and controlling the temperature at each point of the blow molding machine to be within the specified range

3. Start the air compressor and stop it for standby when the pressure of the storage cylinder is 6-8kg/cm

4. After the temperature at each point meets the requirements, wear personal protective equipment and start the traction machine, blower, and extruder in sequence.

Energy saving in the power sector: Most use frequency converters, which save energy by saving the excess energy of the motor. For example, the actual power of the motor is 50Hz, but you only need 30Hz in production, and that excess energy is wasted. Frequency converters change the power output of the motor to achieve energy-saving effects.

When making thin films, we often use a film blowing machine. Everyone should understand that a film blowing machine is a device specifically designed for producing this material, and you can often see its presence. In order to ensure the effectiveness of the film blowing machine, everyone must pay attention to the maintenance of the film blowing machine in daily use. No matter what we do, it's the same. If we treat it well, its usage rate will also increase significantly.