| 摘要 |
<p>Bending method for machines to shape metallic shapes, particularly but not exclusively round pieces (16) used for reinforcement purposes in the building trade, the machine including a work plane (11) on which there is a bending assembly (12), a drawing and possibly straightening assembly (14) arranged upstream of the bending assembly (12) and a shearing assembly (15) arranged between the drawing assembly (14) and the bending assembly (12), there also being included at least an assembly (17b) to retain the round piece (16) which can be temporally excluded, the system providing that, when bending is started, the round piece (16) is positioned by the drawing assembly (14) in cooperation with the bending assembly (12) in order to bend the leading end, then the round piece (16) is made to advance by a desired segment and then sheared to size by the shearing assembly (15) so that the trailing end of the round piece (16) is positioned in cooperation with the bending assembly (12), the round piece (16) then being held in position by the at least one retaining assembly (17b), the bending assembly (12) then being displaced progressively from the trailing end of the round piece (16) towards the leading end and stopped in correspondence with the position of the intermediate bends to be made on the round piece (16). Shaping machine which achieves the method as described above. <IMAGE></p> |
