Metal founding – Means to shape a forming surface – Including means for compacting particulate fluent mold...
Patent
1976-04-06
1977-08-30
Shore, Ronald J.
Metal founding
Means to shape a forming surface
Including means for compacting particulate fluent mold...
164181, 164183, 164201, 164210, 164213, B22C 1508, B22C 1524, B22C 1104
Patent
active
040448185
ABSTRACT:
Automatic sand mold fabricating apparatus and a method for using the apparatus is disclosed. The present invention provides at least a first cope and a first drag. Preferably, first and second copes and first and second drags are used. Where two pairs of copes and drags are utilized, the first pair will be filled at two diametrically opposed stations while the other pair will be positioned at one of two ejection stations that are both 90.degree. spaced apart from the first and second stations. The pairs of copes and drags alternate between the filling stations that are diametrically opposed to each other and the ejection stations which are 90.degree. away. A mechanism is also provided for selectively inserting a core at either one or both of the ejection stations, and a mechanism for selectively inverting the impression forming member to thereby permit two concurrently operating discharge conveyors for the finished sand molds and to also permit differently shaped molds to be formed without interrupting the sand casting mold fabrication procedure. A feature of the present invention is that each of the drags is inverted during its travel from its loading or filling station to either of the two ejected stations.
REFERENCES:
patent: RE28735 (1976-03-01), Lund et al.
patent: 3417811 (1968-12-01), Masi
patent: 3630268 (1971-12-01), Hatch
patent: 3858639 (1975-01-01), Larkin
patent: 3955614 (1976-05-01), Geiger
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