1, production reasons: (1) uneven feeding. (2) damage of main motor bearing or bad lubrication. (3) a heater is out of order and not heated. (4) the screw adjustment pad is wrong, or the phase is wrong, and the component interferes.

2, processing methods: (1) check feeder, troubleshooting. (2) overhaul the main motor and replace the bearings if necessary. (3) check whether the heaters work properly and replace the heater when necessary. (4) check the adjusting pad, pull out the screw and check whether the screw is interference.

Failure analysis of small extruder: main motor can not start

1, causes: (1) driving procedures are wrong. (2) the thread of the main motor has a problem, whether the fuse is burned or not. (3) the interlocking device associated with the main motor acts 2, and the treatment method is: (1) check the procedures and restart the car in the correct order. (2) check the main motor circuit. (3) check whether the lubrication pump is started, and check the condition of the interlocking device associated with the main motor. Oil pump not open, motor can not open. (4) the frequency converter is not finished, the power is turned off and 5 minutes later. (5) check that the emergency button is reset.