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US 4,527,747 AGranted
Method and vibratory chute for treating goods
AssigneeCarl Schenck AG
InventorsWolfgang Scharmer, Heinz Saettler, Eugen Schlag
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AssigneeCarl Schenck AG
InventorsWolfgang Scharmer, Heinz Saettler, Eugen Schlag
Estimating the term…
Manufactured goods such as cast components to which molding sand is still adhering, are treated in a vibratory conveyor chute for cleaning and cooling the goods. As the goods travel down the chute they are exposed to force components extending perpendicularly and across to the travel direction along the length of the chute. These force components impose on the goods a revolving motion along a helical path. This revolving motion may be improved or intensified by directing the resulting force components (R, R') of the force causing the revolving motion to extend at a spacing from a so-called "center of gravity line" (S, S') defining or interconnecting the center of gravity points along the length of the vibratory chute system. This spacing causes a distribution of the goods (11) in the chute such that the goods (11) have a slanted surface (10) in the chute (1). Thus, the vertical acceleration values (k.sub.v) are larger at the upper return zone 26 than they are at the lower return zone 27. This type of treatment combined with the conveying movement is applicable to various kinds of goods and treatment procedures.
A method for treating goods in a vibratory chute having a longitudinal axis, a center of gravity line, and a main conveying direction extending substantially in the same direction as said longitudinal axis, comprising the following steps:
A vibratable chute for treating goods in the chute having a longitudinal axis (x), a center of gravity line and a main conveying direction all extending in the same direction, comprising longitudinal chute body means having an input and an output, flexible support means operatively connected to said chute body means, vibration generator means operatively connected to said chute body means for imparting vibration causing force components to said chute body means which force components extend substantially perpendicularly to and across said main conveying direction, said vibration generator means having force output means, and means connecting said force output means to said chute body means in positions for simultaneously imparting vibration and rotational movements causing force components to said chute body means due to a resultant force (R, R') of said force components being effective on said chute body means at a definite spacing (s, s') from said center of gravity line resulting in a crank action for simultaneously vibrating and rotationally moving said chute body means to cause a non-symmetric distribution of the goods in the vibrating chute so that the goods in the vibrating chute are moving across the longitudinal axis (x) of the chute from a lower movement reversing zone (27) to an upper movement reversing zone (26) and vice versa, and for assuring larger k.sub.v -values at said upper movement reversing zone than at said lower movement reversing zone, wherein said k.sub.v -values are defined as the ratio of a vertical acceleration component of said goods to a gravity vector, whereby the goods are exposed to higher vertical accelerations in said upper movement reversing zone than in said lower movement reversing zone.
Dependencies are inferred from the claim text.