How to use double screw parallel bar extruder correctly?


1. Before the start-up of double screw parallel rod extruder, check whether there are foreign matters in the barrel, hopper and inside, whether the fastening bolts of each part are loose, whether the safety cover is firm, and whether the position of each button switch is correct, and then add enough lubricating oil in each lubricating part to clean the equipment.

2. Inform the staff around the equipment when you are ready to start up.

3. Start the motor for driving screw rotation at low speed, and check whether the pointer of the main motor’s working ammeter swings normally. In case of abnormal sound or unstable screw operation, stop the machine immediately and find relevant personnel for maintenance.

4. It is not allowed to run the screw for more than 30 minutes. After everything is normal, install the mould for production products and the connecting bolt for mould installation. Before use, apply a layer of molybdenum disulfide or silicon oil to facilitate disassembly.

5. In the early stage of feeding production, the screw has a low working speed, and the feeding should be less and uniform. Check whether the pointer swing of the working ammeter of the motor driving the screw is abnormal at any time.

6. After the double screw parallel bar extruder is put into normal production, the operator should often check the temperature change of the bearing. When checking the temperature of the motor and each bearing part, the back of the finger should be used to gently touch the inspected part. Do not touch any rotating parts with hands during the operation of the equipment.

7. When disassembling and installing the screw and die, it is not allowed to directly knock the parts with a heavy hammer. If necessary, it is necessary to pad a hardwood before knocking to disassemble or install.

8. When cleaning the residual materials on screw, barrel and mould, it must be cleaned with bamboo or copper knife and brush. It is not allowed to scrape the residual materials with steel or barbecue the parts with fire.

9. When dealing with the extruder failure, the extruder is not allowed to run. When the extruder screw rotates and adjusts the die, the operator is not allowed to face the extrusion barrel mouth to prevent accidents.

10. When the double screw parallel bar extruder is working, the operator is not allowed to leave the post. If it is necessary to leave, the extruder should be stopped.

11. Remove the screw after parking, and apply a layer of antirust oil after cleaning the residue. If it is not used for the time being, wrap it up and hang it vertically in a dry and ventilated place.

12. For extruders and forming dies that have not been used for a long time, antirust oil should be applied and each outlet port should be sealed to prevent foreign matters from entering.

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