Injection mold control system

Details Injection mold control system Injection mold control system

1973-12-17

1976-07-13

Baldwin, Robert D.

Plastic article or earthenware shaping or treating: apparatus

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

Feed control of material en route to shaping area

425146, 425149, 425166, 425248, B29F 106

Patent

active

039690555

ABSTRACT:
A system and method for controlling the injection of material through two or more gates into the cavity of injection-molding apparatus. In this system, a sensor develops an indication of unbalanced flow conditions produced by the injection of the material into the cavity of the mold. A regulator also forms part of the system and serves to adjust the relative amounts of material passing through the gates. The method includes sensing unbalanced flow conditions produced by the material injected into the cavity and adjusting the relative amounts of materials injected into the cavity through the various gates.

REFERENCES:
patent: 3473197 (1969-10-01), Wilds et al.
patent: 3597794 (1971-08-01), Mann
patent: 3767339 (1973-10-01), Hunkar
patent: 3807914 (1974-04-01), Paulson
patent: 3819777 (1974-06-01), Vermeerbergen
patent: 3820928 (1974-06-01), Lemelson
patent: 3820928 (1974-06-01), Hehl
patent: 3840312 (1974-10-01), Paulson

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