Drive for an oscillating roller in an inking unit of a rotary printing press
AssigneeHeidelberger Druckmaschinen AG
InventorRudi Junghans
Life of this patent
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Abstract
Drive for at least one oscillating roller in an inking unit of a rotary printing press, wherein the drive starts from a printing unit cylinder, and at least one oscillating roller is arranged in the inking unit for performing a lateral oscillating motion, includes a central gear-wheel for driving the oscillating roller, an intermediate gear-wheel in engagement with the central gear-wheel, and a bushing eccentrically arranged with respect to the oscillating roller, the intermediate gear-wheel being mounted on the bushing.
Claims8
A drive assembly, comprising:
- a central drive gear and an oscillating roller driven by said central drive gear;
- said oscillating roller having a roller axis and an oscillating roller gear meshing with said central drive gear;
- an axial drive connected to said oscillating roller and disposed coaxially with said oscillating roller for introducing an axially oscillating motion to said oscillating roller;
- an intermediate gear wheel meshing with said central gear wheel, and a bushing rotatably supporting said intermediate gear wheel;
- an active drive gear meshing with said intermediate gear wheel and rotatingly driving said oscillating roller;
- and
- said bushing being mounted eccentrically relative to said oscillating roller such that said oscillating roller is rotatingly driven by said active drive gear via said intermediate gear wheel, said central drive gear and said oscillating roller gear independently of the axially oscillating motion of said oscillating roller.
A drive assembly in a printing unit with an impression cylinder, comprising:
- a central drive gear and a plurality of oscillating rollers driven by said central drive gear;
- each of said oscillating rollers having a roller axis and an oscillating roller gear meshing with said central drive gear;
- said central drive gear being rotationally coupled to an impression cylinder of the printing unit such that the impression cylinder imparts a rotation on said oscillating rollers;
- a plurality of axial drives each coaxially mounted on a respective one of said oscillating rollers, said axial drives imparting an axially oscillating motion to each of said oscillating roller;
- a plurality of bushings each eccentrically disposed relative to a respective one of said oscillating rollers, and an intermediate gear wheel rotatably supported on each of said bushings and meshing with said central gear wheel;
- and
- an active drive gear meshing with said intermediate gear wheel and rotatingly driving said oscillating rollers through a drive train defined from said active drive gear, through said intermediate gear wheel, through said central drive gear, and to said oscillating roller gear.
Dependencies are inferred from the claim text.