Apparatus for effecting simultaneous free-fall jolting and squee

Metal founding – Means to shape a forming surface – Including means for compacting particulate fluent mold...

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164212, B22C 1530, B22C 1514

Patent

active

040774619

ABSTRACT:
Apparatus for the production of foundry molds within a mold forming assembly which at least includes a pattern device and a molding box capable of having molding material contained therein is adapted to effect simultaneous free-fall jolting and squeezing of the molds during their production within a molding machine having a press and a jolter table with at least a pair of columns rigidly connecting said press with said jolter table to form a gantry. Conveyor means are provided for reversibly moving the mold forming assembly from a position at which the molding box is put onto the pattern device and filled with molding material to another position within the gantry where the simultaneous free-fall jolting and squeezing is effected. Coupling means are provided for coupling and uncoupling the pattern device with the conveyor means to effect movement of the mold forming assembly to both of the aforementioned operating positions. The conveyor means may comprise a pivoted arm driven by a crank mechanism or a toothed rack driven by a loop drive member. The mold forming assembly is movably mounted upon tracks which may be raised and lowered during the production procedures. Damping means are provided for limiting the operating stroke of a pressure plate of said press.

REFERENCES:
patent: 2567578 (1951-09-01), Ranger
patent: 2733488 (1956-02-01), Valyl
patent: 2892223 (1959-06-01), Buhrer
patent: 2951270 (1960-09-01), Taccone
patent: 3968830 (1976-07-01), Buhrer

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