Device for shifting oscillating rollers in a printing machine

Details Device for shifting oscillating rollers in a printing machine Device for shifting oscillating rollers in a printing machine

B - Operations, Transporting

41

F

101/104, 101/90

B41F 13/40 (2006.01) B41F 31/15 (2006.01) B41F 31/36 (2006.01)

Patent

CA 2040954

An oscillating roller (N1) for offset printing machines consists of a central shaft (12) fitted for appropriate rotation into the frame (B) of the machine, and of a concentric oscillating cylinder (11). A cotter (14) fitted on the cylinder (11) engages in a guiding groove (15) of the shaft (12) in order to ensure common rotation of the two components (11, 12) without, though, preventing their respective axial shifts. Two chambers (C1 and C2) made up by the cylinder (11) and the shaft (12) can be alternatively subjected to hydraulic pressure in order to cause the cylinder (11) to shift axially in the one or the other direction.

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