What should I pay attention to when starting and stopping the pelletizer machine?

What should I pay attention to when starting and stopping the pelletizer machine?

1、 Preparation before starting the plastic pelletizer machine:

1. Before starting the new machine for the first time after installation, it is necessary to check whether all connecting bolts are securely locked. After running the equipment for one shift, each connecting part should be checked again;

2. Heat up the auxiliary machine mold head first, and wait for 20-40 minutes before starting other temperature zones for heating (due to the large volume of the mold head);

3. The temperature rise of the auxiliary machine mold head is set to 180-200 ℃, and the other temperature rises to 200-250 ℃ (the temperature control meter flashes red light), followed by another 30 minutes of insulation;

4. Metal objects are strictly prohibited from approaching the inlet and exhaust ports to avoid falling into the screw barrel and causing unnecessary losses.

5. After the insulation time is sufficient, rotate the reducer pulley of the main/auxiliary engine by hand for more than five turns. If it can rotate without jamming, the main engine can only be started.

6. Start the main engine and auxiliary engine motors separately, observe whether the steering is correct. If reversing, the two phases of the three-phase power supply can be switched at will (note: the starting time should not exceed 10 seconds).

7. When the machine needs to be shut down after each production, the material in the main and auxiliary machine screws should be pushed out, and the machine head should be immediately opened to empty the remaining material to prevent plastic hardening and bring difficulties to the next production.

8. When feeding the cooled and shaped plastic lines into the pelletizer machine, pay attention to safety and prevent hands from being accidentally injured.

Attention: For detailed operation of certain special supporting equipment, please follow its separate user manual.

2、 Precautions for using the electric mold head of the plastic pelletizer machine:

1. Before heating, it is necessary to raise the mold head sieve plate by 8-10mm to prevent the mold head and sieve plate from biting when heated.

2. To shut down the machine (meaning to stop heating for more than 2 hours) and remove most of the plastic from the barrel, the mold head sieve plate must be raised, the plastic in the mold head must be cleaned, a new mesh must be installed, and the sieve plate must be lowered (but not to the bottom, about 10mm from the lowest point) to prepare for the next startup heating.

3. When changing the mesh, pay attention to the opening of the mold. When moving the sieve plate up and down, do not use fast speed to avoid pushing the sieve plate up or damaging the screw rod; When replacing the mesh, special attention should be paid to the fine iron wire at the edge of the mesh not being outside the mesh slot, to avoid the fine iron wire being caught on the sealing surface of the mesh plate when it is pressed down, which may damage the sealing surface and cause material leakage.

4. After the initial heating of the mold head, all fasteners must be tightened again to prevent material leakage due to increased clearance after heating.

3、 Precautions for stopping the plastic pelletizer machine:

1. When the machine needs to be shut down after each production, the material in the main and auxiliary machine screws should be pushed out, and the machine head should be immediately opened to empty the remaining material to prevent plastic hardening and bring difficulties to the next production.

2. Cut off the power supply in a timely manner after shutdown to prevent accidental operation by others;

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