When the Spring Festival comes every year, the production enterprises begin to take a long vacation and stop production. Before the holiday, the necessary maintenance and maintenance of the film blowing machine production equipment is the guarantee for the smooth reproduction in the second year. Generally, the mechanical equipment of plastic film blowing machine basically operates 24 hours a day, because its full load operation causes losses to the machine. If the machinery is not repaired and maintained in time, it will have a certain impact on the service life of the machinery, the accuracy of film products and the quality of film. The maintenance process is divided into the following seven points:

1、 Electrical maintenance:

Ensure the stability of power supply, and the parameter setting meets the requirements

Maintain proper temperature and humidity

2、 Feeder system

Dispose of the filter in time

3、 Extruder system

Observe the pressure gauge and ammeter

Check the gearbox for noise

Check the frequency and current of the frequency converter

Difference between measured temperature and actual temperature of thermocouple

4、 Die system

Clean the accumulated material with a pure copper scraper before starting and stopping the film blowing machine, so as to reduce the influence of precipitates on film bubbles

After shutdown, protective measures shall be taken to prevent mold damage

5、 Air ring maintenance

Clean the sundries and dust on the air ring in time

6、 Traction device maintenance

The flattening roller operates flexibly and the herringbone plate is not polluted

7、 Electrical processor maintenance

Regularly clean the discharge roller and discharge rack.