The invention relates to a
metal sheet roller straightening
machine and belongs to the field of metallurgical machinery. The
metal sheet roller straightening
machine comprises a feeding plate, an upper straightening device, a lower straightening device, a main fixing frame, a
machine frame, a motor and a belt. The upper straightening device comprises an upper feeding roller, a feeding
roller bearing seat, an upper straightening roller set, upper straightening
roller bearing seats, an upper discharging roller, an upper discharging
roller bearing seat, an upper support, a pressing plate, a bolt and an adjusting spring. The lower straightening device comprises a lower feeding roller, a lower straightening roller set, a lower discharging roller, a lower
main bearing seat, a V-shaped belt wheel and a transmission set gear. The spring is adopted by the upper straightening device for providing straightening force for straightening rollers, and thus
noise generated in the straightening process of the straightening machine is greatly lowered; and meanwhile, bearings of the upper straightening device adopt guiding groove structures, the height of the straightening rollers can be adjusted conveniently so that the straightening machine can adapt to straightening of
metal sheets with different thicknesses, production demands are met, dismounting and mounting are easy, and maintaining is convenient. The lower straightening device mainly provides force for moving of the metal sheets and does not provide straightening force proactively.