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US 3,998,262 AGranted
Casting shake-out unit and method of operation
OwnerCharles J. Didioninventor
Life of this patent
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OwnerCharles J. Didioninventor
Estimating the term…
In a casting shake-out unit comprising a longitudinal cylinder being approximately horizontally disposed is driven in rotation by means of a motor, the cylinder includes a concentric inner cylinder formed as an apertured surface having rifling arranged helically upon its interior surface, with integral vanes helically arranged intermediate the inner apertured cylinder and the outer longitudinal cylinder. As sand encrusted castings are deposited into the cylinders, and while they are rotated, said castings are tumbled and urged to move longitudinally of the apertured cylinder while the loosened mold sand falls therethrough, and is likewise moved longitudinally of the apertured cylinder while the loosened mold sand falls therethrough, and is likewise moved longitudinally of the outer cylinder to a location for collection. The inner apertured cylinder or surface may be sectionalized, formed as modular components, for replacement as they wear out, and may be secured together and locked in place for forming a unitized inner apertured cylinder that functions as defined.
A casting shake-out unit of the type useful for facilitating the separation of a new casting from its mold sand or the like comprising a cylinder longitudinally disposed generally in an approximate horizontal position and arranged for slowly rotating around its longitudinal axis, bearing means povided for supporting said cylinder during its rotation, means cooperating with the cylinder for furnishing its slow speed of rotation, an apertured surface provided concentrically inwardly from the inner surface of said cylinder and designed for simultaneously rotating therewith, a series of helically arranged ribs formed upon the inner surface of said apertured surface and being arranged for urging the castings deposited thereon to move longitudinally of the rotating cylinder, a series of helically arranged vanes provided intermediate the apertured surface and the cylinder for inducing the movement of the sand passing through the apertured surface to also be moved longitudinally of the cylinder, said helical ribs being integral with the inner surface of the apertured surface, the helical vanes being integral with the outer surface of said apertured surface, and said apertured surface and its integral ribs and vanes being sectionalized and comprising a series of modular components which during assembly are capable of fitting together to form a complete apertured surface inwardly of the inner surface of the longitudinal cylinder.
A casting shake-out unit of the type useful for facilitating the separation of a new casting from its mold sand, and including a longitudinally disposed cylinder having an inner apertured surface concentrically arranged therein, the improvement which comprises said apertured surface being sectionalized, and comprising a series of modular components which during assembly are capable of being fitted together to form a complete apertured surface inwardly from the inner surface of the longitudinal cylinder, each modular component of the apertured surface including a segment of an integral rib formed upon its inner surface, and a segment of an integral vane formed upon its outer surface.
Dependencies are inferred from the claim text.