Control method of injection molding machine

Details Control method of injection molding machine Control method of injection molding machine

1988-07-08

1989-11-07

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

2643281, 425145, 425587, B29C 4550

Patent

active

048790770

ABSTRACT:
A control method of an injection molding machine is implemented so that a screw is rotated at a predetermined speed in the reverse direction to a rotational direction in a measuring process in the whole or partial stroke of an injection process in the case where an in-line screw type injection molding machine is controlled. With the control method, when the screw is moved forward in the injection process, apparent position of a ridge of the screw in a predetermined position of a heating cylinder becomes stationary.

REFERENCES:
patent: 4042660 (1977-08-01), Bishop
patent: 4540359 (1985-09-01), Yamazaki
patent: 4592712 (1986-06-01), Gutjahr
patent: 4649262 (1987-03-01), Yoshikawa

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