Abstract: A roll bending machine for bending plates or iron sheets comprising an upper roll for dragging the plate, a central gripping roll and lateral bending rolls beneath the upper roll, wherein the flexure of each roll of the bending machine is opposed by a longitudinal beam and by a plurality of rolling members disposed between each roll and the longitudinal support beam. The rolling members are mounted in pairs which are individually adjustable relative to their associated beam in directions toward and away from the beam.

Abstract: A roll bending machine for bending plates or iron sheets with a programmable work cycle; a central processing unit (CPU) by suitable sensing means controls the working positions of the rolls of the bending machine adjusting them according to programmed data which can be modified each time by an operator or automatically, according to the characteristics of the plate being worked. The use of a three-point sensing device enables the diameter which the machine is conferring to the plate, to be controlled, intervening to make the necessary corrections.