The three-layer co extrusion blown film machine is a device that heats and melts plastic particles before blowing them into thin films. It has the advantages of high yield, good product plasticization, low energy consumption, and simple operation. It adopts advanced technologies such as a new high-efficiency and low-energy 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, computer screen automatic control system, etc. The produced film has characteristics such as high transparency, puncture resistance, high toughness, good low-temperature hot cutting, good composite fastness, and anti curling.

This film can be widely used in light and heavy packaging, such as various fresh fruits, meat products, Pickled vegetables, fresh milk, liquid drinks, medical supplies, etc., due to its good barrier, freshness, moisture resistance, frost resistance, oxygen isolation, and oil resistance. When using a three-layer co extrusion blown film machine, it is necessary to pay attention to safe operation to avoid hard objects such as metal impurities in the raw materials and small tools that may damage the machine falling into the barrel. At the same time, attention should be paid to inspecting and maintaining the equipment to ensure its normal operation.

What are the operating steps of the three-layer co extrusion blown film machine?

Preparation before startup:

Check if all parts of the equipment are functioning properly, such as the electrical system, heating system, extrusion system, etc.

Prepare the necessary raw materials and ensure they are dry and clean.

Install and adjust the mold properly.

Power on operation:

Turn on the power and start all control systems.

Set the temperature of each section of the extruder for heating and warming up.

After the temperature reaches the set value, start the extruder and start slowly feeding.

Adjust the extruder speed and feeding speed to gradually achieve the appropriate extrusion amount.

Blowing process:

Adjust the air volume and cooling speed of the wind ring to control the thickness and quality of the film.

Turn on the traction device and set the appropriate traction speed.

Observe the formation of the film and fine tune various parameters as needed.

Roll up operation:

Guide the formed film to the winding device.

Adjust the winding tension to ensure that the film is wound neatly.

Shutdown operation:

Stop feeding and continue to extrude the remaining material.

Turn off the extruder.

Turn off heating systems, traction devices, and other auxiliary equipment.

Clean up equipment and work areas.

It should be noted that there may be some differences in the specific operation of three-layer co extrusion blown film machines from different models and manufacturers. Before actual operation, it is necessary to carefully read the equipment operation manual and operate under the guidance of professional personnel.