The reason for the wrinkling of the film during the blowing process of the blown film machine

A blown film machine is a device that heats and melts plastic particles before blowing them into a thin film. What are the reasons for the wrinkles in the film during blowing? Here is the editor's summary:
1. Uneven film thickness;
Method: Adjust the film thickness with a blown film machine to ensure uniform film thickness.
2. Excessive inflation ratio leads to unstable bubbles, swinging back and forth, and easy buckling;
Method: The inflation rate should be appropriately reduced;
3. The angle of the herringbone clamp is too large, causing the film bubble to be flattened in a short distance and the film to wrinkle easily.
Method: The angle of the herringbone clamp should be appropriately reduced;
4. The pressure on both sides of the traction roller of the blown film machine is inconsistent, with one side higher and the other lower;
Method: Adjust the pressure of the traction roller to ensure uniform force distribution on the film;
5. The axis between the guide rollers of the blown film machine is not parallel, which affects the stability and flatness of the film and leads to wrinkling.
Method: Solve and check the axis lines of the guide shaft to make them parallel to each other.
6. Insufficient freezing effect.
Method: It can improve the freezing effect and ensure that the film is fully frozen.

    

Through these descriptions, I believe everyone's understanding of blown film machines is increasing. The energy-saving heating method is mostly electromagnetic heaters, with an energy-saving rate of about 30-70% of old-fashioned resistance coils.
Editor: Nancy