Injection molding controller with machine modeling

Details Injection molding controller with machine modeling Injection molding controller with machine modeling

1997-12-11

2000-08-22

Grant, William

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

425145, G06F 1900

Patent

active

061085871

ABSTRACT:
An industrial controller for injection molding machines models the injection molding machine by observing ram state in response to control variables to alert the user when a control profile may be physically unrealizable and to inhibit a learning process to avoid extreme actuation of the controlled components such as may be detrimental to later control accuracy. Simultaneous velocity and pressure control of the ram, with separate profiles, may be obtained by open-loop control of either pressure or velocity and continuous closed-loop control of the other control variable.

REFERENCES:
patent: 5062785 (1991-11-01), Stroud, III et al.
patent: 5182716 (1993-01-01), Stroud, III et al.
patent: 5258918 (1993-11-01), Giancola
patent: 5786999 (1998-07-01), Spahr et al.

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