What is the maintenance of the film blowing machine?

Film Blower Maintenance - Targeted Maintenance Project
1. Feeder system: Clean the filter in time to check whether the negative pressure feeding system has air leakage.
2. Extruder system:
(1) Observe the pressure gauge and main motor current, and clean the screen changer in time.
(2) Check the gear box, screw, main motor for noise and overheating
(3) Check the running frequency, current and temperature rise of the inverter, and clean the motor and inverter dust on time.
(4) Correct the thermocouple measurement to the actual temperature error.
(5) Correct the placement of the extruder and adjust the sheave to ensure the angle and level of the extruder.
3. Die system:
(1) Start the heating and take the secondary heating method to avoid temperature overshoot.
(2 )Use a pure copper scraper to clean the accumulated material and paraffin to clean the membrane before opening and stopping, and reduce the influence of precipitates on the bubble.
(3) Cover the protective felt in time after shutdown to avoid mold damage. (The upper blower adopts this method)
(4) Regularly check the temperature and current of each temperature zone and the film inlet heating plug, and correct the temperature difference.
(5) Correct the die level and the center point to match the traction.
(6) mold screw removal using a torque wrench, operating according to the specified torque, high temperature part of the screw using molybdenum disulfide grease.
(7 )It is forbidden to weld and cut the mold.
4. Wind ring maintenance: timely clean up debris and dust in the wind ring
5. Traction device maintenance: The herringbone fold is non-polluting, the clamping traction (cooling) roller pressure is suitable, there is no condensed water, and the flattening roller is flexible.
6. Corona processor maintenance:
（1） Regularly clean the high voltage transformer, discharge roller, discharge frame, electric control box, and adjust the discharge gap;
（2） Check the humidity of the equipment before starting the machine to avoid short circuit of the discharge frame and check the running temperature of the discharge roller bearing.
（3） Replace the silicone tube in time.
7. Electrical maintenance
（1）to ensure the stability and reliability of the power supply, the performance parameters meet the requirements,
（2） Maintain proper temperature and humidity, maintain good grounding, and avoid the danger of static electricity.
（3）Periodically remove the radiator dust.
（4） It is forbidden to repair the core components with a little.