What are the working process and operation precautions of twin-screw foam granulator- Zhoushan Jiading Plastic Machinery Co., Ltd.

The material passes through the feeding port of the twin-screw foam granulator, and is rolled into a mass under the action of the rotating screw and rolls forward along the screw groove. Due to the shearing, compression and stirring action of the screw, the material is further mixed and plasticized. , the temperature and pressure are gradually increased, showing a viscous flow state, and passing through the machine head at a certain pressure and temperature, and finally conical screw barrel the desired shape of the product is obtained.

Precautions for the operation of the main engine of the twin-screw foam granulator

1. The rated current of the main engine is the rated current of the motor. During normal operation, it should be controlled below 80% of the rated current, leaving room for overloading (please refer to the motor nameplate for the rated current). The rated voltage and frequency of the main engine should be controlled at more than 50% of the rated voltage and frequency during normal operation.

2. The nose pressure sensor is equipped with a digital display. The number of the digital display meter in normal operation should be below 10MPa. The operator should monitor the number of the digital display meter at all times. If it exceeds 15MPa, check whether the flow channel is blocked at this time, stop feeding immediately, and gradually reduce the screw speed of the main engine. , Adjust the number on the digital display of the sensor to be below 10MPa. If the number on the digital display is still high, it should be manually stopped for inspection.

3. The operator should regularly check the tail lubricating oil pressure gauge (value 0.1-0.2MPa), if it is lower than 0.05MPa, stop immediately to check the oil circuit, oil pump motor and oil pump, so as to protect the normal operation of the gearbox gear.

4. During normal operation, there should be operation records.