Tension bridle

Details Tension bridle Tension bridle

B - Operations, Transporting

21

B

80/36

B21B 37/00 (2006.01) B21B 39/08 (2006.01) B21C 47/00 (2006.01) B65H 23/14 (2006.01)

Patent

CA 1084736

-1- TENSION BRIDLE ABSTRACT OF THE DISCLOSURE The disclosure relates to a multi-roll tension bridle for hot and cold rolled steel strip, in which at least the first roll of the bridle is provided with an internally mounted normally non-rotating electromagnet for causing the strip to be attracted against the entry portion of the roll in order to create a pretensioning in the portion of the strip immediately adjacent the entry side of the bridle, thereby causing the bridle drive motor to load up preventing slippage of strip on the roll. The tension bridle as employed in the steel industry, as for example in continuous tension levelling side trimming processing lines, are sometimes placed in the line in a position where the strip coming to the bridle is under little or no externally applied tension. In order for the tension bridle and more specifically the first roll thereof to effectively contribute to the desired total amount of tension producible by the bridle in the passing strip it was customary to provide a device to impose a pre-tension on the strip in the form of either drag boards, drag magnets, or a set of pinch rolls or bending rolls.

309272

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