Troubleshooting of plastic pelletizer

Time:2019-01-09

1、 screw running normal, but not expected
Reason: the hopper feed is not continuous; the feed port has a foreign body jam or produce “bridge”; the groove into the metal hard to plug the groove, can not feed;
Treatment: increase the amount of feed to make the screw feed continuously stable; stop the exclusion of foreign matter in the mouth to eliminate the “bridge” phenomenon; if you confirm a metal foreign body fell into the groove, should immediately shut down the screw, remove the metal foreign body.

2、 host does not turn or instantaneous shutdown
Cause: The main motor power is not connected; heating time is insufficient, or one of the heaters does not work, resulting in excessive torque makes the motor overload.
Solution: Check whether the host circuit is connected, turn on the power; check the temperature display, confirm the warm-up time, check the heater is damaged or have bad contact, and exclude.
Plastic Pellet Making Machine, Plastic Film Granulator Machine, Plastic Pelletizing line, Plastic Film Pelletizing Machine

3、 exhaust vent material
Reason: the raw material is not clean enough with impurities; feed too fast makes the screw extrusion instability; plastic temperature is not enough screw extrusion into a problem.
Treatment: the raw materials to clean and then re-feed or replace the filter; reduce the amount of feed to make plastic stabilized screw smooth extrusion; improve the plasticization temperature (temperature should not be too high to prevent burn plastic, affecting the quality of production).

4、 main motor rotation, but the screw does not turn
Reason: drive V belt loose, wear skid; safety keys loose off or off.
Remedy: adjust the V center distance, tighten the belt, or replace the new V belt; check the security key, analyze the cause of the break, and replace the safety key.