Molding sand loading and injecting head, in particular for molde

Details Molding sand loading and injecting head, in particular for molde Molding sand loading and injecting head, in particular for molde

1987-06-29

1989-01-03

Godici, Nicholas P.

Metal founding

Means to shape a forming surface

Including means for compacting particulate fluent mold...

164202, 164228, B22C 1524

Patent

active

047949767

ABSTRACT:
Molding sand loading and injecting head comprising a vertical cylindrical injecting chamber adapted to be placed in contact with a core box placed below the chamber and provided with an annular tank for compressed air associated with a movable-shutter device adapted to send the compressed air into the chamber both axially and transversely thereto. The head has support and guiding sleeves including an inner sleeve rigid with the chamber and an outer coaxial sleeve rigid with a supporting frame work. The head further comprises a hydraulically operated distributing valve, arranged coaxially to the chamber and associated with the compressed air distribution shutter, for vertically moving the chamber and the related shutter in both directions. The top of the chamber accommodates a coaxial tubular body which defines with the chamber an annular interspace having such dimensions as to convey both the axial compressed air and the radial compressed air along the chamber without causing vorticose motions and/or air bubbles.

REFERENCES:
patent: 2654924 (1953-10-01), Wood et al.
patent: 2793409 (1957-05-01), Hansberg
patent: 3225396 (1965-12-01), Hansberg
patent: 4700767 (1987-10-01), Peterle

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