What are the troubleshooting methods for three-layer co extrusion blown film machine?

The three-layer co extrusion blown film machine is an efficient, high-quality, and multifunctional blown film equipment with strong competitiveness and market potential, which is of great significance for improving the production capacity and quality of plastic films. In the future development, the three-layer co extrusion blown film machine will continue to play an important role in promoting the development and progress of the entire blown film industry.

Select three layers of raw materials based on the purpose and performance requirements of the film. For example, the outer layer material may need to have good printability, wear resistance, and UV resistance, the middle layer material is used to provide the strength and toughness of the film, and the inner layer material needs to ensure good heat sealing properties. Before adding the raw materials to the extruder, they need to undergo pre-treatment such as drying and screening to remove moisture and impurities, ensuring the quality of the raw materials.

What are the troubleshooting methods for three-layer co extrusion blown film machine?

If the film material breaks or is damaged: check if the extruder temperature is set properly, check if the extrusion die head is worn, and check if the pressure of the cooling roller is uniform. If problems are found, replace worn parts or adjust temperature and pressure in a timely manner.

Uneven thickness of film material: Check whether the feeding speed of the extruder is consistent, whether the extrusion outlet of the extruder is stuck, and whether the cooling effect of the cooling roller is uniform. If any problems are found, adjust the feeding speed, clean the extrusion port, or adjust the cooling effect of the cooling roller in a timely manner.

The surface of the film material is rough or has bubbles: check whether the feeding speed of the extruder is too fast, check whether the extrusion outlet of the extruder is blocked, and check whether the temperature of the cooling roller is too high. If any problems are found, promptly reduce the feeding speed, clean the extrusion port, or lower the temperature of the cooling roller.

Abnormal noise generated by extruder: Check if the transmission components of the extruder are loose, if the cooling system of the extruder is working properly, and if the motor of the extruder is running smoothly. If any problems are found, promptly tighten the transmission components, inspect the cooling system, or check the operation of the motor.

The three-layer co extrusion blown film machine can simultaneously produce three layers of films of different materials, greatly improving production efficiency and saving production costs. Due to the use of co extrusion technology, the three-layer co extrusion blown film machine produces films with stable quality, smooth and uniform surface, and good physical and heat resistance properties. The extruder and die head of the three-layer co extrusion blown film machine can be adjusted, and the thickness, width, and stretch ratio of the film can be adjusted according to needs, suitable for different production needs.

Widely used in food packaging, daily necessities packaging, pharmaceutical packaging and other fields. For example, in food packaging, three-layer co extruded film can be used to package snack foods such as potato chips and cookies. The outer layer provides good printing effect and anti friction performance, the middle layer provides the function of blocking oxygen and water vapor, and the inner layer ensures good heat sealing performance, extending the shelf life of food.