Metal founding – Means to shape a forming surface – Including means for compacting particulate fluent mold...
Patent
1975-01-07
1977-07-12
Husar, Francis S.
Metal founding
Means to shape a forming surface
Including means for compacting particulate fluent mold...
164162, 164182, B22C 1508, B22C 1316, B22C 1700
Patent
active
040347958
ABSTRACT:
A vertical type machine for continuously forming casting molds at high pressure. The machine is supported by a bed plate and has stays extending vertically with a stationary upper frame connected to the stays. An upper mold frame is fixed to the stays while the lower mold frame is mounted on the stays for vertical reciprocation. A match plate is supported on the stays intermediate the upper and lower mold frames for movement in and out of closing engagement with the upper mold frame. The lower mold frame is mounted on horizontally extending rails on its support so that it may be moved into and out of alignment with the upper mold frame. An upper piston-cylinder actuator is mounted of the stationary frame for vertically displacing an upper squeeze plate, and a lower piston-cylinder actuator is mounted on the bed plate for moving a lower squeeze plate vertically. A sand tank is mounted on the stationary frame and its lower end is bifurcated to form branch pipes having discharge outlets which are registrable with ports formed in the upper and lower mold frames for blowing of sand into the mold frames. The upper and lower formed sand molds, after compression by the squeeze plates and retraction of the match plate, are extruded by the upper squeeze plate downwardly through the lower mold frame onto the lower squeeze plate, and are then moved forwardly onto a teeming platform extending forwardly from the assembly. As each horizontal split mold is moved onto the teeming table, its forward surface is bonded to the rearward surface of the immediately preceding mold.
REFERENCES:
patent: 1021938 (1912-04-01), MacKay
patent: 3205542 (1965-09-01), Miller
patent: 3220066 (1965-11-01), Hatch
patent: 3381740 (1968-05-01), Janke
patent: 3556196 (1971-01-01), Buhler
patent: 3760866 (1973-09-01), Larkin
Brown John S.
Husar Francis S.
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