Precautions for twin-screw extruder

Precautions for twin-screw extruders can be summarized as follows:

First, safety operation precautions

Operators must be professionally trained and qualified before they can operate. Do not operate devices that do not belong to you or that you are unfamiliar with.

Staff should dress in accordance with regulations, do not drink alcohol before work, female workers should not wear high heels, long hair should be up and stuffed into the work cap, in order to prevent safety accidents.

During the operation of the equipment, cleaning and maintenance of the equipment are prohibited. When it is necessary to stop the equipment or cut off the power supply for troubleshooting, the no-move sign should be hung or supervised by a special person to prevent injury caused by accidental startup or closing.

Electrical equipment faults can only be repaired by electricians, and do not touch any buttons when hands are wet to prevent electric shock.

Second, equipment use precautions

Before use, the twin-screw extruder must check the integrity of each component, such as the gear box gear oil level, water cooler water level, laser coding machine water level, etc. At the same time, check whether the gear and bearing protective cover are complete, whether there is dry material attached to the feeding belt and feeding port, and whether the air pressure meets the requirements.

Before starting, check whether the upper and lower shaft sleeve screws are loose, whether the sponge is damaged, and whether the power switches and pressure gauges are normal. It is also necessary to use a level to check whether the lower edge of the discharge port, the discharge belt, the roller, the cutting belt and the clamping belt are at the same height, and whether the belt is deviated.

When operating the laser, do not look directly at the outgoing laser or reflect the laser with your eyes to prevent eye damage. At the same time, flammable materials should not be placed on the optical path of the laser coding machine or where the laser beam is likely to shine, to prevent fire or even explosion.

After the equipment is started, it should be idled for a few minutes to observe whether the machine is running normally. Before feeding, check whether the discharge of the head is stable and uniform, and whether there are broken strips and hole blockage of the die. When feeding, it should be kept uniform and stable to prevent overload or idling.

Third, maintenance precautions

The twin-screw extruder should be maintained regularly during use, including cleaning the machine, lubricating the moving parts, tightening the threads that are easy to loosen, etc. At the same time, it is necessary to check and adjust the motor, control instruments and various working parts and pipelines in a timely manner.

After a certain period of continuous operation (such as 2500-5000 hours), the machine should be comprehensively inspected and disintegrated, the wear of the main components should be measured and identified, the parts that have reached the wear limit should be replaced in time and the damaged parts should be repaired.

Pay attention to keep the equipment dry and clean, reduce the effect of mixing impurities and water. The selection and storage of processing materials should also be strictly checked to ensure that the quality of materials meets the processing requirements.

To sum up, the use of twin-screw extruder should pay attention to the details of safe operation, equipment use and maintenance to ensure the normal operation of the equipment and extend the service life.