Instructions for rotating the die and changing the screw on the Haitian MA series plastic injection molding machine.

1. Rotate the stage.

• Preparation: Move the scaffolding back to its final position.

• Disassembly: Remove the plastic protective caps and hexagonal screws on the rail.

• Secure the batten bar: Attach the batten bar to the rail and move the scaffolding close to the batten bar to secure its position.

• Disconnect: Remove the protective cover, sensor, and the screws securing the drum and cylinder.

• Operation: Turn on the rotating truss function on the control panel and press the button to rotate.

2. Replace the screw shaft.

• Heat preparation: Turn off heating elements 1 and 2, wait for it to cool down, then remove the heating ring.

• Removing the screw shaft: Remove the flange bolts in sequence, then remove the screw shaft tail and pull the screw shaft out.

• Installing a new screw shaft: Thoroughly clean and apply heat-resistant copper grease to the threaded ends. Then reassemble the flange, heating ring, and secure the mounting bracket.

3. Center the spray nozzle.

• Use calipers or a specialized measuring device to check the concentricity between the nozzle and the mold center hole.

• Adjust the alignment bolts at the base of the truss until the required accuracy is achieved.

Note: Always ensure workplace safety, wear heat-resistant gloves, and disconnect the power supply when necessary during maintenance.