Method of controlling injection moulding machine

Details Method of controlling injection moulding machine Method of controlling injection moulding machine

1992-05-22

1993-09-21

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 405, 425145, 425149, 425135, B29C 4577

Patent

active

052466450

ABSTRACT:
A method of controlling an injection molding machine in which change in the forward movement velocity of an injecting screw or change in the filling pressure is detected at the time of performing switching from the filling process to the packing process, commencement of the packing control is hastened if the change in the velocity or the pressure is reversed, while the commencement of the packing process is delayed if a determined level is not realized within a predetermined time from the commencement of the packing control. When the injection molding work is performed, switching from the filling process to the packing process can be easily performed at a proper time and therefore high quality products can be easily mass-produced.

REFERENCES:
patent: 3860801 (1975-01-01), Hunkar
patent: 3904078 (1975-09-01), Neff et al.

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