Apparatus for making foundry cores

Details Apparatus for making foundry cores Apparatus for making foundry cores

1977-11-23

1980-02-26

Lazarus, Richard B.

Metal founding

Means to shape metallic material

Including means to assemble mold parts

164 16, B22C 1524

Patent

active

041900979

ABSTRACT:
An apparatus for making foundry cores. A pair of support plates, each of which carries a core box half, are mounted on carriages and the carriages are movable toward and away from each other to bring the core box halves into mating relation. Mounted above the support plates is a reciprocating carriage that carries a sand head and a gas head. The carriage is initially positioned to locate the sand head beneath a hopper where the head is filled with sand impregnated with an uncured resin binder, and the carriage is then shifted to position the sand head over the core box and the sand is blown into the core box. The carriage is then returned to its original position so that the gas head is positioned over the core box, and a gas, which serves as a catalyst for the resin binder, is introduced into the core box to cure the resin. A manifold system is incorporated in the support plates so that the gas discharged from the core box is passed through a scrubber before being discharged to the atmosphere.

REFERENCES:
patent: 2991506 (1961-07-01), Crandall
patent: 3038221 (1962-06-01), Hansberg
patent: 3147519 (1964-09-01), Hilliard
patent: 3296665 (1967-01-01), Fenzan
patent: 3482619 (1969-12-01), Hulslander
patent: 3528481 (1970-09-01), Lund

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