Molding machine with pattern venting

Details Molding machine with pattern venting Molding machine with pattern venting

1992-10-16

1993-11-16

Batten, Jr., J. Reed

Metal founding

Means to shape a forming surface

Including means for compacting particulate fluent mold...

164238, 164239, 164410, B22C 704, B22C 1500

Patent

active

052614794

ABSTRACT:
An apparatus for producing sand mold employing compressed air comprises a sand molding apparatus for use in making sand molds by employing compressed air. The apparatus includes, in the preferred embodiment, a pattern plate carrier having a top surface for supporting a pattern plate thereon. A molding box is positioned on the top surface of the pattern plate carrier and surrounds the pattern plate so as to define between the pattern plate and the interior surface of the molding box a peripheral area on the top surface of the carrier. Vents are provided on either the peripheral area define above or the pattern plate or both and extend around the pattern plate for allowing compressed air which is injected into the molding box during compression of the molding sand to escape on the pattern side of the molding box. A chamber is defined within the carrier beneath the pattern plate and is communicated with the vent structure by means of bores. The chamber is thereafter communicated with a conduit for removing the compressed air to a remote location.

REFERENCES:
patent: 3293703 (1966-12-01), Taccone
patent: 4230172 (1980-10-01), Uzaki et al.
patent: 4620584 (1986-11-01), Witt

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