B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
101/86
B41F 3/00 (2006.01) B41F 5/24 (2006.01)
Patent
CA 1249481
ABSTRACT FLEXOGRAPHIC PRINTING PRESS COMPRISING A PLURALITY OF INKING UNITS AND PLATE CYLINDERS Disclosed is a flexographic printing press comprising a plurality of inking units and plate cylinders and at least one impression cylinder, which is driven by a coaxial central gear, which during the printing operation is in mesh with the gears of the plate cylinders, which are rotatably mounted on plate cylinder carriages, which are adapted to move toward and away from the impression cylinder on tracks, which are provided in the machine frame and extend in approximately tangential to radial directions with respect to the central gear, wherein the inking units comprise screen cylinders having screen cylinder gears in mesh with the plate cylinder gears and the screen cylinders are mounted on the inking unit carriages for movement along tracks provided on the plate cylinder carriages. That printing press is characterized in that each plate cylinder or plate cylinder gear is provided with a projection or hub, which is centered on the axis of the respective plate cylinder, and each of said projections or hubs is provided on its periphery with angularly spaced apart detent bores, which are equal in number to the plate cylinders and are disposed on respective peripheral lines, which are axially spaced apart, that the plate cylinder carriages are provided with detent pins, which are axially or angularly movable and are disposed in respective radial planes and are offset relative to each other in such a manner that each of said pins is adapted to enter that detent bore of that plate cylinder, which has a detent bore at a corresponding acial location, and that the detent bore of each plate cylinder has such an angular position that when the plate cylinders have been located on the plate cylinder carriages by means of the detent bores and the detent pins and the central gear has been adjusted to the proper angular position the plates on the plate cylinders will be adjusted for printing in perfect register when the plate cylinders are caused to mesh with the central gear.
491055
Ottenhues Ludger
Wesselmann Heinz
Marks & Clerk
Windmoller & Holscher
LandOfFree
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