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Method and apparatus to control the lateral motion of a long metal bar being formed by a mechanical process such as rolling or drawing

United States Patent

January 4, 2011
View the Complete Patent at the US Patent & Trademark Office
An apparatus to control lateral motion of a bar moving along a guidance path includes a pair of rotatable hubs each having at least first and second rollers at locations around the perimeter of the hub. The first roller has a first retaining groove of a first radius and the second roller has a second groove of a second radius smaller than the first radius. Each hub further includes at least one guiding element located between the rollers with a guide channel extending in the outer surface. A mounting system allows the hubs to be rotated between first and second positions. In the first position the first rollers oppose each other forming a guideway having a first, enlarged diameter for capturing a free end of an approaching bar. In the second position the second rollers form a second, smaller diameter to match the actual size of the bar.
Chang; Tzyy-Shuh (Ann Arbor, MI), Huang; Hsun-Hau (Ann Arbor, MI), Lin; Chang-Hung (Ypsilanti, MI)
OG Technologies, Inc. (Ann Arbor, MI)
11/ 846,303
August 28, 2007
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with United States government support under Cooperative Agreement No. DE-FC36-GO14003 "SQA.TM. SURFACE QUALITY ASSURED STEEL BAR PROGRAM" awarded by the Department of Energy. The United States government has certain rights in the invention.