Metal deforming – With use of optical or transparent means
Patent
1993-06-11
1995-10-03
Larson, Lowell A.
Metal deforming
With use of optical or transparent means
72319, 72320, 72420, 36447407, B21D 504
Patent
active
054542472
ABSTRACT:
Method of and apparatus for punching and bending a lithographic plate to match a particular press so that when the plate is subsequently mounted on that particular press, it is oriented to print a properly positioned image on a print surface. The method comprises the steps of (A) inspecting a plate at an inspection station to identify the plate and to determine the position of a registration mark on the plate, (B) comparing the position of the registration mark to a predetermined reference position, (C) identifying the particular press on which the plate is to be mounted, (D) determining whether the position of the registration mark on the plate is to be adjusted relative to the reference position to a compensating position to compensate for potential misalignment of the plate image on a print surface when the plate is mounted on said particular press, (E) positioning the plate at the inspection station in a final plate punching position in which the registration mark on the plate is either in the reference position in the event it is determined there is to be no compensating adjustment, or in said compensating position in the event it is determined there is to be a compensating adjustment, (F) punching the plate when it is in its said final plate punching position, and (G) bending the plate after it has been punched.
REFERENCES:
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patent: 3735627 (1973-05-01), Eburn, Jr.
patent: 3786666 (1974-01-01), York, Jr.
patent: 4365500 (1982-12-01), Klukow
patent: 4594868 (1986-06-01), Takeuchi et al.
patent: 5007264 (1991-04-01), Haack
patent: 5193690 (1993-03-01), Powers et al.
patent: 5255607 (1993-10-01), Nishiyama et al.
Tech Management PostPress "K & F Printing Systems" News Inc., p. 58 (Jun. 1993), admitted as prior art.
"LA Times Purchases Six K & F In-line Binders", Newspapers & Technology (Jun. 1993), admitted as prior art.
K & F Printing Systems Int'l "Vision Bender" brochure, admitted as prior art.
McMasters Kelly T.
Powers John W.
Gurley Donald M.
Larson Lowell A.
Western Litho Plate & Supply Co.
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