The material passes through the double screw foam granulation machine feeding port, under the action of the rotating screw, it is rubbed into a mass and rolls along the spiral groove. Because of the shearing, compression and stirring of the screw, the material is further mixed and plasticized, the temperature and pressure gradually increase, showing a viscous flow state, and passing through the machine head with a certain pressure and temperature, and finally obtaining the desired shape product.
Main points for attention of twin screw foam granulation machine
1. The rated current of the main machine is the rated current of the motor. It should be controlled below 80% of the rated current during normal operation, and there is room to prevent overload (please refer to the motor nameplate for rated current). Rated voltage and frequency of the main machine shall be controlled at more than 50% of the rated voltage and frequency during normal operation.
2. The head pressure sensor is equipped with a digital display meter. The number of normal operation digital display meter shall be below 10MPa. The operator shall monitor the number of digital display table at all times. If it is more than 15MPa, check whether the flow channel is blocked, stop feeding immediately, and gradually reduce the screw speed of the main machine. Adjust the number on the sensor digital display table below 10MPa. If the number on the digital display table is still high, the operator shall stop the inspection manually.
3. Operators shall regularly inspect the tail lubricating oil pressure gauge (value 0.1-0.2mpa). If it is lower than 0.05Mpa, stop the oil circuit, oil pump motor and oil pump immediately to protect the normal operation of transmission gear.
4. During normal operation, there shall be operation record.