Patent ID: 6044675
Filing Date: 2000-04-04
Classification: B21D

Abstract:
Automatic apparatus for roll bending metal sheets and/or sections, comprising:a support frame;at least an upper bending roll and a lower bending roll axially extending and rotatably supported by the support frame, one of the said bending rolls being movably supported in a vertical direction to be positioned with respect to the other bending roll;drive means for moving the rolls and an electronic control device operatively connected to said drive means, said control device comprising a programmable process unit and a digital control board manually operable by an operator for programming said process unit and performing command functions, said control board comprising at least a first and a second monostable keys designed to send different types of single-bit signals to the process unit in order to selectively control in two opposite directions each of said roll drive means, said digital control board being removable from said control device while remaining operatively connected to the process unit.