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

The three-layer film blowing machine is used to blow various HDPE LDPE LLDPE PA packaging film. Due to its good barrier property, moisture, moisture, rain, wind, frost, oxygen and oil resistance, this film can be widely used in light and heavy packaging, such as various fresh fruits, meat products, Pickled vegetables. Fresh milk, liquid beverages, etc.

To meet the customer's requirements for high-quality and high-yield blown film equipment, advanced technologies and equipment such as extruder with forced feeding function, precision ceramic heater, precision double air outlet wind ring, horizontal rotary traction system, IBC internal cooling system, fully automatic double section and double winding surface friction winding machine, and centralized control system for computing machines are adopted. Compared with similar equipment, it has advantages such as a more compact structure, higher output, better product quality, more energy-efficient machines, and easier operation. It can be widely used in the production of various types of high transparency packaging films, creating considerable economic benefits for you.

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

1. Check that the temperature control is intact, the heating appliances are intact, and pay attention to adjusting the heating temperature at each point in a timely manner within the specified range.

2. Check the traction speed and control the thickness of the film.

3. Observe and adjust the uniformity of the film thickness, and ensure that the bending diameter meets the standard.

4. Check the pressure of the air storage cylinder, it should not be too high, but there should be backup pressure.

5. Check and control the raw material ratio and mix evenly.

6. Check for impurities in the raw materials, especially by promptly using a magnet to check if the iron is mixed in.

7. Check the lubrication of the gearbox position and the lubricating oil of the air compressor cylinder.

8. Regularly check the temperature rise and mechanical transmission of each operating motor.

The market prospects for producing plastic packaging bags are still very promising, whether it is basic vest bags or high-end packaging bags, both require the use of plastic blow molding machines, and also consider production efficiency and overall costs. This type of film blowing machine is still very practical, and as long as it can ensure normal operation and purchase branded products, it can be used for a long 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. The prevention method is to appropriately reduce the traction speed to match the inflation ratio; Increase the air volume of the wind ring to quickly cool the blown expansion film and avoid being stretched and oriented at higher temperatures and high elastic states.