Television – Special applications – Manufacturing
Patent
1995-08-22
1997-05-27
Au, Amelia
Television
Special applications
Manufacturing
101DIG36, 33614, H04N 718, F23J 300, B41F 500, B41B 1100
Patent
active
056336764
ABSTRACT:
A mounting and proofing apparatus has plate and layout cylinders rotatably mounted in a frame in parallel alignment to each other. A partial mirror is disposed proximate the plate and layout cylinder to permit a user looking into the partial mirror to view superimposed images of the layout and plate cylinders. At least one video camera is disposed above and directed at the partial mirror to image the superimposed images upon a video display having radicle markings. A layout sheet is installable on the layout cylinder indicating proper positioning of printing plates on the plate cylinder. The video camera optionally magnifies superimposed images of registration marks on the layout sheet and the plate cylinder. The user aligns the radicle with the registration mark, places a printing plate on the imaged area of the plate cylinder, and then aligns corresponding registration mark on the printing plate with that of the layout sheet. The magnification is sufficient to allow alignment of microdot registration marks on flexographic printing plates. Encoders allow a digital readout of camera positions and circumferential displacement of the plate and layout cylinders facilitating alignment verification and location of registration marks on the layout sheet. Optionally, the magnification of the video displays of the cameras may be altered optically or electronically to increase a field of view to allow alignment of printing patterns, and in particular those of slug plates, without the use of registration marks.
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Advertisement for Harley New Opti-Chek Mounting & Proofing Machine Series 4000.
Advertisement for Harley New Opti-Chek Narrow Web Mounting & Proofing Machine.
Advertisement for Harley Opti-Chek Model PC-4000 Corrugated Box Printing Plate Mounting and Proofing Machine.
Advertisement for Harley Opti-Chek Tape and Label Mounting Machine.
Flexographic Technology for Printers & Converters FLEXO, vol. 20/No. 3, Mar. 1995, p. 187.
Paper, Film & Foil Converter, Jan. 1994, p. 44.
EFM-Euro Flexo Magazine, vol. 11, 1, Jan./Feb. 1995, pp. 3, 7-8.
Harley Richard E.
Mikkelsen Erik
Au Amelia
E. L. Harley Inc.
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