Low-pressure casting machine hold-down system

Details Low-pressure casting machine hold-down system Low-pressure casting machine hold-down system

1996-01-30

1997-09-30

Lin, Kuang Y.

Metal founding

With signal, indicator or inspection means

Including position or spatial dimension sensor

164306, 164335, B22D 1804

Patent

active

056717997

ABSTRACT:
A hold-down mechanism (88) is provided for holding a base plate (32) of a casting assembly (20) in engagement with a crucible (28). The hold-down mechanism (88) includes a plurality of Belleville-type washers (89) for allowing relative movement while maintaining a predetermined force holding the base plate (32) in engagement with the crucible (28). The hold-down mechanism includes a plurality of tension rods (90) and a plurality of forks (91) each having a pair of spaced fingers (92), each of the rods (90) being paired with one of the forks (91). Each of the rods (90) has a threaded end (93) and the Belleville-type washers (89) are disposed about the threaded end (93) of each of the rods (90) with a threaded nut (94) engaging the threads (93) of each of the rods (90) for compressing the washers (89) against the fingers (92) of the forks (91).

REFERENCES:
patent: 3039157 (1962-06-01), Bobenmyer
patent: 3063106 (1962-11-01), Peirce
patent: 4932461 (1990-06-01), Schaffer et al.
patent: 5230379 (1993-07-01), Voss

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