Method of automatic mold and core forming

Details Method of automatic mold and core forming Method of automatic mold and core forming

1977-04-20

1978-08-15

Husar, Francis S.

Metal founding

Process

Shaping a forming surface

164 39, B22C 1528

Patent

active

041065450

ABSTRACT:
A method of making sand molds, cores or the like for use in casting foundry pieces. First and second continuous conveyors are utilized, the first conveyor having a number of pattern pieces and flasks attached to it, and the second conveyor for transporting the sand molds, cores or the like from the flasks after deposition thereon by inverting the flasks over the second conveyor. Each flask is filled in turn with sand and binder mixture when in an upright position, the sand-binder mixture is compacted and partial curing thereof is allowed, the flasks are inverted in turn to bring the sand mold into contact with the second conveyor, and the sand mold is released from each flask while it is inverted. Each flask is then brought back into an upright position for receipt of further sand-binder mixture to repeat the process, the process being substantially continuous.

REFERENCES:
patent: 1108694 (1914-08-01), Burkhardt
patent: 1119680 (1914-12-01), Brown
patent: 3672434 (1972-06-01), Grolla
patent: 3840063 (1974-10-01), Staley

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