Pressure moulding machines and mould parts therefor

Details Pressure moulding machines and mould parts therefor Pressure moulding machines and mould parts therefor

1973-08-21

1976-03-09

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

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

Means responsive to abnormal condition completely stop...

425137, 425154, B29F 100

Patent

active

039429288

ABSTRACT:
In a pressure moulding machine, particularly a die casting machine, detection of locking together of the die parts by the applied pressure is effected by detecting the resulting mechanical stretch in the machine frame; the die parts are opened and closed together by an air motor associated with a hydraulic motor that damps the opening and closing movement of the dies, the die parts being locked together by the hydraulic motor; full closing of the die parts is determined by applying pressurized air to bores therein and to a controlling pressure switch, the pressure switch not being operable if air is leaking from the bores.

REFERENCES:
patent: 3242533 (1966-03-01), Wintriss
patent: 3507212 (1970-04-01), Matteson
patent: 3677680 (1972-07-01), Etherington

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