Patent ID: 9643227
Date: 2017-05-09
CPC Classifications: B21D,B21F

Claim:
1. A drawing unit for drawing at least one long metal product, configured to make said at least one long metal product advance along a nominal axis of feed and provided with at least a first motorized roll and with at least two second rolls operate at a periphery of said first motorized roll; passage gaps defined by the first motorized roll and each of said at least two second rolls, wherein said at least two second rolls are located one on one side and the other on an other side of an axis orthogonal to the nominal axis of feed that passes through a center of rotation of the first motorized roll, wherein said at least two second rolls are associated with a movement member to move said each of said at least two second rolls in a parallel form with respect to each other and in a direction substantially orthogonal to said nominal axis of feed in order to adjust said passage gaps, said passage gaps configured along a straight line that joins the center of said first roll with a center of each of said at least two second rolls, an amplitude that is bigger in size than a nominal diameter of said metal product, wherein each of said at least two second rolls define a respective lying plane disposed substantially orthogonal to the nominal axis of feed of said metal product and on which an axis of rotation of each of the second roll lies, and wherein each of the at least two second rolls are disposed such that each respective lying plane intersect a bulk of said first motorized roll.