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 current of the pressure instrument and main motor and clean up the changer in time.
(2)Check whether gearbox, screw and main motor have noise or overheating.
(3)Check frequency, current and temperature rise of inverter, clean motor and converter dust on time.
(4) correcting the measurement of thermocouple and the actual temperature error.
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 cleaning dust and dust in the wind ring.
5. Maintenance of traction device: herringbone folding pollution-free, clamping traction (cooling) roller pressure appropriate, no condensate, flattening roller operation flexibility.
6. corona processor maintenance:
(1) regularly clean high voltage transformers, discharge rollers, discharge shelves, electric control boxes, and adjust discharge gaps.
(2) Check the humidity of the equipment before starting the machine, avoid the short circuit of the discharge rack, and check the operating temperature of the discharge roller bearing.
(3) Change the silicone hose 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.
