Common problems and solutions of film blowing machines
For a series of problems that may occur during the operation of film blowing machines, some common treatment methods are given below:
1. Unstable film bubbles: This may be due to fluctuations in temperature and pressure, or insufficient matching of the die head. The temperature, pressure and die head matching can be adjusted to obtain a more stable film bubble.
2. Film curling or wrinkling: This may be due to uneven cooling or inconsistent pulling speed. The cooling system and pulling speed can be adjusted to ensure that the film is flat.
3. Uneven film thickness: This may be due to wear of the die head or forming wheel, or inaccurate temperature control. The worn parts can be replaced and the temperature can be adjusted to obtain a more uniform thickness.
4. Film tube bending: This may be due to uneven heating or improper cooling. The heating system and cooling system can be checked and adjusted accordingly.
5. Film bubble rupture: This may be due to excessive temperature or low pressure, or blockage of the die head. The temperature and pressure can be checked and adjusted, and the die head can be cleaned to ensure the integrity of the film bubble.
6. Diaphragm tearing: It may be due to excessive traction speed or improper temperature control. The traction speed and temperature can be adjusted to avoid diaphragm tearing.
In addition, there are corresponding treatment methods for some specific problems. For example, for the problem of film bubble collapse, the gap between the die head and the molding wheel can be adjusted, or a new molding wheel can be replaced. For the problem of film bubble rupture, the heating system and cooling system can be checked to ensure the stability of temperature and pressure. For the problem of film curling, the air volume of the cooling fan can be adjusted, or the traction device can be checked to see if it is working properly.
In short, the problems that may occur in the film blowing machine need to be analyzed and handled according to the specific situation. By continuously adjusting and optimizing equipment parameters, the stability and production efficiency of the film blowing machine can be improved, the failure rate can be reduced, and thus the product quality and production efficiency can be improved.
