Accumulator control method for an injection molding machine

Details Accumulator control method for an injection molding machine Accumulator control method for an injection molding machine

1998-03-26

2000-09-19

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 405, 2643281, 425135, B29C 4582

Patent

active

06120711&

ABSTRACT:
In a method of controlling an accumulator connected to an oil hydraulic circuit of an injection molding machine, a charge start point and a charge end point for the accumulator are set for each of molding cycles or for each of step divisions constituting a single molding cycle. During molding, control is performed such that the charge start point and the charge end point are synchronized with each molding cycle. Thus, pressures in the respective steps of each molding cycle become constant (stable) among molding cycles.

REFERENCES:
patent: 4712991 (1987-12-01), Hehl
patent: 5052909 (1991-10-01), Hertzer et al.

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