1. The action procedure of the injection molding machine: nozzle forward → injection → pressure maintenance → pre-molding → retraction → nozzle backward → cooling → mold opening → ejection → needle withdrawal → door opening → door closing → mold closing → nozzle forwarding.
2. Injection molding machine operation items: injection molding machine operation items include control keyboard operation, electrical control cabinet operation and hydraulic system operation. The selection of injection process action, feeding action, injection pressure, injection speed and ejection type, monitoring of temperature, current and voltage of each section of the barrel, adjustment of injection pressure and back pressure, etc. are carried out respectively.
3. Action selection in the injection process: Generally, the injection molding machine can be operated manually, or semi-automatically and fully automatically. Manual operation is in a production cycle, and each action is realized by the operator flipping the operation switch. Generally, it is only selected when testing the machine and adjusting the mold; in semi-automatic operation, the machine can automatically complete a working cycle, but after each production cycle, the operator must open the safety door, remove the workpiece, and then close the safety door, the machine can continue to go down. One cycle of production; in fully automatic operation, the injection molding machine can automatically enter the next work cycle after completing the actions of one work cycle. No downtime is required during normal continuous operation.
