Straightening machine bars and metal tubes with automatic adjustable advance (Machine-translation by Google Translate, not legally binding)

摘要

Bar and tube straightening machine, characterized in that it comprises a support frame of a drive shaft, in which there are a series of conical drive pinions, arranged in opposite positions, that is, facing their smaller and larger bases respectively, engaging these conical sprockets on cylindrical gear wheels, which are alternately oblique, according to the toothed surfaces of the respective pinion, said wheels comprising a core externally supported by ball bearings and internally provided with a working nozzle, the succession of nozzles constituting the path to be traversed by the bar or tube to be straightened, the first two and the last two nozzles being off center with eccentricity equal to the diameter of the bar or tube, and an intermediate nozzle, offset to a greater eccentricity at din to cause a deformation for the straightening of the bar or tube that is worked. (Machine-translation by Google Translate, not legally binding)