Barrel temperature control system for injection molding machine

Details Barrel temperature control system for injection molding machine Barrel temperature control system for injection molding machine

1995-03-29

1997-01-28

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Temperature control

425144, B29C 4578

Patent

active

055975887

ABSTRACT:
The barrel temperature control apparatus for an injection molding machine can execute the barrel temperature control in such a way as to optimize the disturbance suppression characteristics. The temperature control section 7 comprises the manipulated variable addition and subtraction section 14 at the rear stage of the PiD control section 12 in such a way that the barrel temperature of the injection molding machine 1 can be controlled under both feedback and feed-forward. Further, when the same products are molded continuously, the barrel temperature is feed-forward controlled on the basis of the learned change manipulated variable.

REFERENCES:
patent: 5456870 (1995-10-01), Bulgrin

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