B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 7/08 (2006.01) B21D 11/12 (2006.01) B21D 21/00 (2006.01) B21D 39/06 (2006.01)
Patent
CA 2105794
- 26 - ABSTRACT Method to carry out bends on a bending machine (10) having a substantially horizontal work platform, the bending machine (10) being suitable to process simultaneously a bundle (13) of bars having a diameter up to 32 mm. or more, the bars (13) being superimposed one on another in a plane substantially normal to the work platform, the bending machine (10) comprising ; - a bending unit (14) including an abutment roll (17) and a bending pin (16) - retaining and clamping means (18) positioned as counterparts to each other in relation to the plane of positioning of the centre line of the bundle (13) of bars, the retaining and clamping means (18) being able to move vertically on inclined lateral guides (26) and to be retracted below the work platform and being located immediately upstream and immediately downstream of the bending unit (14), and - a unit (11) including a gripper (12) for the controlled lengthwise displacement of the bundle (13) of bars, the retaining and clamping means (18) being partly downwardly retracted during the steps of displacement of the bundle (13) of bars so as to provide a partial opening which enables the the bundle (13) of bars to slide and be guided, the gripper (12) of the unit (11) performing the controlled lengthwise displacement of the bars being opened partly in at least one step of the bending cycle so as to keep the bundle (13) of bars superimposed one on another in a substantially vertical position. Device which employs the above method.
Del Fabro Giorgio
Del Fabro Marcello
Goudreau Gage Dubuc
M.e.p. Machine Elettroniche Piegatrici Spa
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