The following are some precautions in the use of plastic granulator:
1. Preparation before starting:
Thoroughly check the connection of all parts of the equipment, especially the transmission parts and heating system.
For example, check the tightness of the belt to ensure that the connection shaft between the motor and the reducer is not loose.
Clean the inside of the equipment to ensure that there is no residual material or debris.
Residual material may affect the quality of the new batch.
2. Heating temperature control:
According to the type and characteristics of the processed plastic, set the appropriate heating temperature.
The melting point and processing temperature range of different plastics are different, such as the heating temperature of polyethylene and polypropylene.
Pay close attention to the stability of the heating temperature to avoid too high or too low temperature.
Too high temperature may lead to plastic decomposition and discoloration, and too low temperature will cause poor plasticization of plastics and affect the quality of granulation.
3. Feed speed control:
Maintain a uniform and stable feeding speed, avoid fast and slow.
Feeding too fast can lead to machine overload, too slow will reduce production efficiency.
According to the capacity of the granulator and the characteristics of the plastic, adjust the appropriate feeding amount.
4. Screw speed adjustment:
Reasonably adjust the screw speed to ensure that the plastic is fully mixed and plasticized in the barrel.
Too high speed may cause excessive shear, resulting in plastic molecular chain fracture, affecting product performance; Too low a speed may lead to uneven plasticization.
5. Safety protection:
Operators should wear protective equipment, such as gloves and goggles.
Prevents high-temperature plastic burns or mechanical parts from causing harm to the body.
When the equipment is running, do not put hands or other objects into the barrel.
6. Equipment maintenance:
Add lubricating oil to the moving parts of the equipment regularly to ensure the normal operation of the equipment.
For example, to the reducer, bearings and other parts of the regular refueling.
Clean the dirt on the heating ring in time to ensure the heating effect.
7. Troubleshooting:
When the equipment fails, it should be stopped immediately, and it is forbidden to turn on the machine again before troubleshooting.
For example, if the motor is found to be abnormally hot or abnormal sound, it is necessary to check the working state of the motor in time.
8. Shutdown operation:
The feeding should be stopped before stopping, and the heating and main engine should be closed after the plastic in the cylinder is emptied.
When the equipment is shut down for a long time, it should be thoroughly cleaned and maintained.
In short, in the use of plastic granulator, strictly abide by the operating procedures and precautions, in order to ensure the safety of production and product quality.
