Molding machine

Details Molding machine Molding machine

1978-02-14

1979-07-03

Simpson, Othell M.

Metal founding

Means to shape a forming surface

Including means for compacting particulate fluent mold...

164173, 164193, B22C 1508

Patent

active

041597338

ABSTRACT:
A molding machine has a molding table disposed in a lower machine section, squeeze cylinders disposed at a level above the molding table, squeeze plates movable by the squeeze cylinders in vertical direction into and out of squeezing engagement with a sand mold around a pattern on the molding table, and a rapping device disposed in an upper machine section. An open-topped hollow tubular member is operatively connected to the squeeze cylinders and disposed in telescopic relationship with the bottom of a sand-feeding chute. The squeeze plates are pivotally mounted on the tubular member and pivotally moved by a cylinder to open and close the bottom of the tubular member. The squeeze plates when in the closed position and the tubular member cooperate together to define a sand retaining space and to form a squeeze head which is operable by the squeeze cylinders.

REFERENCES:
patent: 2782471 (1957-02-01), Mathisen
patent: 3556196 (1971-01-01), Buhler
patent: 3589433 (1971-06-01), Hedberg

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