Twin screw extruder parts manufacturers fault analysis and solutions
Analysis of extrusion parts of twin-screw extruder parts manufacturers
First, the motor can not initiate
1 The power supply is not turned on or the fuse is blown.
2 There is a disconnection condition in the working line or there is looseness at the joint.
3 The servo motor control knob is not adjusted back to zero.
4 The lubricating oil pump is interlocked with the main motor, and the oil pump motor is not started.
5 The driving procedure is incorrect.
Second, the main motor operating current is unstable or high
1 The barrel is not evenly fed, and the amount of material is suddenly large and small.
2 The machine has a short constant temperature heating time and a low plasticizing temperature.
3 barrel heating temperature control is not stable, the temperature is not firm.
4 The main motor bearing is severely worn and may be damaged.
Third, the main motor bearing parts temperature is high
1 Rotor bearing lubricant is missing, there is dry interference.
7 Rotor bearings are damaged or severely worn.
Fourth, the main motor operation, the pole does not roll
1 The safety pin in the transmission system is broken.
2 barrel heating constant time is short, the machine is low in internal medicine.
The 3V belt is severely worn and the drive wheel is idling.
4 There are transmission keys falling in the transmission parts.
5 The internal quality of the barrel guessed that there was a metal foreign object stuck in the screw, making it impossible to roll.
6 drive gear teeth are broken.
5. The operating speed of the twin-screw extruder parts is not stable.
The 1V pulley base is too small, the V-belt device is too loose, and it slips during operation.
2 The speed control device of the motor is out of order and the control is out of order.
3 barrel heating temperature control is not stable, the temperature is not firm; the material inside the barrel is plasticized.
Sixth, the operation speed of the twin-screw extruder parts is stable, but the extrusion material is not stable
1 The material in the hopper is “bridged”, and the barrel feeding is not connected.
2 The debris at the manifold is blocked, and the flow of the extruded melt is not clear.
3 screw feeding section cooling and cooling is lacking, the material temperature is high, sticking to the thread surface, with
The screw is rolled so that the barrel cannot be fed.
4 barrel heating temperature control is not stable, material temperature is high and low, affecting the stability of the melt activity.
Seven, twin-screw extruder parts work tumbling sound is not normal
1The screw is deformed and bent, which is in conflict with the machine.
2 There is metal foreign matter in the screw plastic compound in the barrel.
3 The plasticizing material has a low temperature, and the screw receives a large torque force and is overloaded.
4 The machine and the base coupling bolts are stretched and deformed, and the machine barrel is misaligned during operation.
5 The manifold is deformed or has too many impurities, and there is a blockage here.
Eight, the barrel humidity is not firm. hard to control
1 The thermocouple has poor contact with the temperature measurement part.
2 electric heating aluminum sleeve and the barrel are not in full contact, there are gaps.
3 The resistance wire connection in the electric heater is not strong.
4 temperature control appearance work failure.
Nine, the transmission bearing parts temperature is high
1 The bearing is short in lubricating oil.
2 The drive shaft is deformed and bent.
3 Ball bearings are severely worn or the ball holder is damaged.
Ten, the extruder operation noise is large
1 motor fan rolling button, fan blade hood.
The 2V pulley device is not correct, and the V belt does not work at high speed.
3 Gear meshing transmission lubricant is missing, which constitutes the tooth surface meshing dry interference.
4 The drive shaft is bent.
5 Rolling bearings are severely worn.
6 screw and barrel have conflict
The company also supplies cylinders, feeders , kneading blocks , thread blocks, shear blocks, screw components and other products, welcome to purchase.