Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Plural or complex apparatus
Patent
1990-01-11
1991-02-05
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Plural or complex apparatus
72388, 72217, B21D 7022
Patent
active
049894293
ABSTRACT:
Rocker bending unit (10) of a type retractable below a working platform (22) of a bending-shaping machine for bars (29), the unit (10) comprising a bending disk (11) provided with a clockwise and anticlockwise rotation of a bending pin (13) positioned out-of-alignment in relation to the axis of rotation, a contrast roller or pin (12) which may be interchangeable being included and coaxial with the axis of rotation, in which unit (10) the bending disk (11) cooperates with and is supported on a base (18) pivoted so as to be able to rock with a rocker pivot (21) on a frame (28) of the machine downstream of the bending unit (10), the rocking direction lying on a plane substantially at a right angle to the working platform (22) and to the axis of feed of the bars (29), the axis of the rocker pivot (21) being substantially parallel to the working platform (22) and in the geometric neighborhood thereof, the unit (10) being fitted on a slider (27) supported by the base (18) and able to move thereon (18) in a direction substantially at a right angle to the direction of feed of the bars (29).
REFERENCES:
patent: 183190 (1876-10-01), McWilliams
patent: 328986 (1885-10-01), Warwick
patent: 1272552 (1918-07-01), Spencer
patent: 3220338 (1965-11-01), Norbutas
patent: 3991600 (1976-11-01), Del Fabro
patent: 4653301 (1987-03-01), Meliga
Del Fabro Giorgio
Del Fabro Marcello
Crane Daniel C.
M.E.P. Macchine Elettroniche Piegatrici S.p.A.
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