Metal deforming – By use of non-deforming work-gripping clamp and relatively... – With cutting
Patent
1991-12-12
1993-03-23
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
With cutting
72217, 72307, 72426, B21D 7022
Patent
active
051953480
ABSTRACT:
Bending-shaping machine for sections (29) in which a drawing unit (10) located downstream of a bending unit (35) and on the same axis as the section (29) takes up not only a retracted position (10B) and a normal working position (10L) but also a high position (10A) to lift the section (129) above an abutment roll (12). Method for the automatic bending of the trailing end of sections (29) in a bending-shaping machine as above described, in which so as to invert the orientation of a bend (26) when making bends (26) in the trailing end (C) of a section (129), the drawing unit (10) moves from its working position (10L) to its high position (10A) and returns to its working position (10L) while a bending disk (11) is displaced sideways (from position 11S to position 11D or viceversa) by passing under the section (129) and thus re-positioning the abutment roll (12) in relation to the section (129).
REFERENCES:
patent: 2453868 (1948-11-01), Shaw
patent: 3991600 (1976-11-01), Del Fabro
patent: 4049026 (1977-09-01), Del Fabro
patent: 4248273 (1981-02-01), Marcello
patent: 4993253 (1991-02-01), Del Fabro
Del Fabro Giorgio
Del Fabro Marcello
Crane Daniel C.
M.E.P. Macchine Elettroniche Piegatrici SpA
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