⑴ motor can not start
① power is not turned on or fuse blown.
② There is a break in the line or loose at the joint.
③ servo motor control knob is not transferred back to zero.
④ oil circulation pump and the main motor chain, the pump motor did not start.
⑤ drive program is wrong.
⑵ main motor operating current instability or high
① barrel feed is not uniform, the amount of supply suddenly large and small.
② barrel heating temperature is short, the material temperature is low.
③ barrel heating temperature control instability, temperature fluctuations.
④ the main motor on the rotor bearing wear serious, may be damaged.
⑶ main motor rotor bearing parts of the high temperature
① lack of lubricating oil within the rotor bearings, dry friction phenomenon.
② rotor bearing damage or serious wear and tear.
⑷ main motor start, but the screw does not turn
① The safety pin in the drive system is broken.
② barrel heating constant temperature is short, the machine material temperature is low.
③ V belt wear serious, the active wheel idling.
④ drive parts in the drive key off.
⑤ barrels of raw materials in the metal hard objects caught the screw, so that it can not turn.
⑥ gear transmission gear teeth broken.
⑸ screw speed is not smooth
① V belt drive in the two pulley center distance is too small, V belt installed too loose, work skidding.
② the main motor speed control device failure, control failure.
③ barrel heating temperature control instability, temperature fluctuations; barrel material raw material plasticization temperature instability.
⑹ screw speed is stable, but the extrusion material is unstable
① material in the hopper "bridge" phenomenon, barrel feed is not continuous.
② There are debris clogging between the manifold and the filter, and the extruded melt flow is not smooth.
③ screw feeding section cooling cooling is insufficient, the material temperature is high, adhere to the thread surface, with the screw rotation, so that the barrel can not feed.
④ barrel heating temperature control instability, raw material plasticization temperature fluctuated, affecting the melt flow stability.
⑺ screw work rotation sound is not normal
① screw deformation and bending, and the inner surface of the cylinder friction phenomenon.
② barrel screw plastic raw materials in the metal-like hard objects.
③ The raw material in the barrel is low in plasticizing temperature, and the screw is rotated to bear the torque force and the overload is working.
④ barrel and the chassis bolts are tensile deformation, barrel work dislocation.
⑤ Split plate deformation or excessive impurities here, there is a clogging phenomenon.
⑧ barrel temperature fluctuations, difficult to control
① thermocouple and temperature measurement of poor contact.
② electric heating aluminum sleeve and barrel outside the contact surface is not comprehensive, local gap.
③ electric heater resistance wire wiring is not strong.
④ temperature control instrument failure.
⑼ drive bearing parts of the high temperature
① lack of lubricating oil within the bearing.
② transmission shaft deformation, bending more serious.
③ Ball bearings are severely worn or damaged.
⑽ Extruder working noise
① motor cooling fan roll key, fan blade scraping hood.
② V pulley installation is not correct, V with high-speed operation is not smooth.
③ gear meshing transmission teeth when the lack of lubricating oil, resulting in tooth surface meshing dry friction.
④ deformation of the drive shaft, there are more serious bending phenomenon.
⑤ serious wear and tear bearing.
⑥ screw outside the barrel and the inner surface of the friction phenomenon.