Metal deforming – With use of control means energized in response to activator... – Sensing tool or tool-linked part
Reexamination Certificate
2007-06-26
2007-06-26
Crane, Daniel C. (Department: 3725)
Metal deforming
With use of control means energized in response to activator...
Sensing tool or tool-linked part
C072S319000
Reexamination Certificate
active
11088442
ABSTRACT:
The invention concerns a bending machine comprising a machine frame, and upper bar and a lower bar mounted on the frame and mutually mobile, a bending bar mounted on the frame, a bending bar mounted on the frame and mobile relative to the frame, to the upper bar and to the lower bar, said bending bar being provided with a support and a bending tool pressing on said support via a bending device actuated by a control unit. The invention aims at making the bending adjustment faster and more accurate. Therefor, said bending device is equipped with an adjusting device capable of being used during a bending operation; the adjusting device, which is actuated by the control unit, can be controlled during a bending operation; at least one sensor associated with the control unit enables detection, through the adjusting device of an adjustment performed by the control unit. For a given bending operation, the control unit determines at least one bending parameter for the bending device, the bending bar tool being set in a substantially flexure-free position at the end of the bending operation.
REFERENCES:
patent: 4449389 (1984-05-01), Cros
patent: 4768367 (1988-09-01), Favrin
patent: 5176017 (1993-01-01), Tokai
patent: 5239853 (1993-08-01), Kutschker
patent: 6058756 (2000-05-01), Kutschker
patent: 2534664 (1977-02-01), None
patent: 19735793 (1999-03-01), None
patent: WO 99/10116 (1999-03-01), None
Crane Daniel C.
RAS Reinhardt Maschinenbau GmbH
Reinhart Boerner Van Deuren P.C.
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