Precautions for Starting and Stopping the Plastic Pelletizing Machine

1. Preparations before starting the plastic pelletizing machine:

(1) Before starting the plastic pelletizing machine for the first time after installation, check whether the connecting bolts are locked. After a shift, check the connections again;

(2) First heat the die head of the auxiliary machine of the plastic pelletizing machine, and then open other temperature zones for 20 to 40 minutes (due to the large size of die head);

(3) The temperature rise of the auxiliary machine die head is set to be 180 to 200℃, and the other temperature rise is set to be 200 to 250℃ (red light of the temperature controller is on), and the temperature is kept for 30 minutes;

(4) The plastic pelletizing machine does not allow any metal objects to enter the feed port and exhaust port, so as to prevent them from falling into the screw barrel and causing unnecessary losses.

(5) After the heat preservation time is sufficient, turn the reducer pulley of the main machine/auxiliary machine for more than 5 turns by hand. If it can rotate without blocking, the main engine can be started.

(6) Start the main machine, auxiliary machine, and motor of plastic pelletizing machine respectively, and observe whether the direction of rotation is correct. If it is reversed, the two phases of the three-phase power supply can be switched at will (Note: the start-up time does not exceed 10 seconds)

(7) When the machine needs to be closed after each production, the screw main machine and auxiliary machine of the material should be pushed out, and the machine head should be immediately opened and remaining materials should be emptied so as to prevent the plastic from hardening and bringing difficulties to the next production.

(8) Pay attention to safety when putting the cooling plastic wire into the plastic pelletizing machine to prevent accidental injury to your hands.

Note: For the detailed operation of some special auxiliary equipment, please operate according to its separate operating instructions.

2. Precautions for the use of the electric die head of the plastic pelletizing machine:

(1) Before heating the plastic pelletizing machine, the sieve plate of die head should be raised by 8 to 10mm to prevent the die head and sieve plate from being seized during heating.

(2) The plastic pelletizer needs to be turned off (referring to stop heating for more than 2 hours) and most plastic cylinders should be removed. Then the sieve plate of the die head must be raised and the clean plastic is in the die head and a new one should be replaced, and then the sieve is lowered (but don't lower it to the bottom; the lowest level is about 10 mm). Then, prepare for the next start for heating and production.

(3) Pay attention to the beginning of the mold when changing the screen of the plastic pelletizing machine. When the sieve plate moves up and down, it is not suitable to be used quickly. For the new screen, pay special attention to the point that thin lines on the edge of the screen should not be in the mesh groove so as to avoid clamping the thin lines on the sealing surface of the screen when the screen is down, which may damage the sealing surface and cause leakage.

(4) After heating the die head for the first time, the fasteners must be tightened again to prevent the gap from increasing and material leakage.

3. Points for attention when the plastic pelletizing machine stops working:

(1) When the machine needs to be closed after each production, the screw main machine and auxiliary machine of the material should be pushed out, and the machine head should be immediately opened and remaining materials should be emptied so as to prevent the plastic from hardening and bringing difficulties to the next production.

(2) Cut off the power supply after stopping the plastic pelletizing machine to prevent misoperation by others.