Automatically controlled machine for rolling metal sheets

An automatically controlled machine for rolling metal sheets comprising:

• at least two central rollers;
• means for rotating and adjustably driving said at least two central rollers with a metal sheet passing therebetween;
• side rollers placed on each side of said central rollers;
• positioning means for positioning said side rollers and including positioning cylinders (23, 24);
• a first set of sensors (40a, 40b, 41a, 1b) connected to said side rollers and to a computer for registering a position of said side rollers;
• at least two probes positioned symmetrically with respect to the central rollers and one probe disposed between said central rollers and each of said side rollers, said probe being connected to a second set of sensors and comprising a cylinder having a stem provided at a distal end thereof with a rotating wheel in contact with a metal sheet passing out of the central rollers so as to obtain a position of said probes by means of said second set of sensors;
• means for rolling in a continuous manner;
• and
• said second set of sensors being connected to said computer for providing information compared to instructions from the computer in order to correctly position the side rollers for suitably rolling the metal sheet to a required radius within given tolerances.