Tensile and / or straightening units for long metal products such as bars, rounds or metal wires

摘要

Drawing and/or straightening unit for feeding simultaneously two oblong metal products (11) to a machine, comprising a first driven roller (12), two second contrasting rollers (13, 15), and actuator means (25, 26) operationally associated with said second contrasting rollers (13, 15), and able to move said second contrasting rollers (13, 15) with respect to said first driven roller (12), in order to vary the distance between said second contrasting rollers (13, 15) and said first driven roller (12). The actuator means (25, 26) are of the linear type, and each of which is connected to one respective of said second contrasting rollers (13, 15) in order to move it linearly independently from the other second contrasting roller (13, 15) so as to contrast in an independent and optimized manner the relative metal products (11) positioned in the respective throat (17, 19) of the first driven roller (12).