Abstract: A cylindrical can decorator inker assembly having a non-oscillating first transfer roll, a non-oscillating second transfer roll and a non-oscillating third transfer roll, and further having axially oscillating distributor and ghost chaser rolls to prevent ghosting on the decorated cans. The inker assembly preferably has an improved oscillator drive assembly, oscillating roll structure, transfer roll structure and inker assembly mount.

Abstract: A system for oscillating a roller driven by rolling contact with a moving substrate. An oscillating assembly comprises first and second opposed gudgeons rotatably mounted on a shaft, the gudgeons being connected by either a plurality of rods or the roller. An oscillation mechanism comprises a reduction transmission assembly having differently toothed input and output pulleys. A cam groove in an oscillation cam is engaged by one or more oscillation pin(s) connected to the gudgeons. An input drive pulley turns with the gudgeons, and an output pulley turns with the oscillation cam. An intermediate double-pulley has second and third pulleys on a common hub. First and second timing belts connect, respectively, the input pulley to the second hub pulley, and the third hub pulley to the output pulley. A currently preferred step-down ratio between the input pulley and the output pulley is about 391:1.

Abstract: A method for operating a printing unit of a printing press includes operating the printing unit in a first operating mode, for example printing operation, and in a second operating mode, for example maintenance operation. In the first operating mode, a printing unit cylinder and a distributor roller are driven rotationally by a first motor and the distributor roller is driven axially by a second motor. In the second operating mode, the distributor roller is driven rotationally by a third motor and the distributor roller is driven axially by the second motor. A printing press for carrying out the method is also provided.

Abstract: A device for use in a printing unit of a printing machine, with that printing unit comprising at least one roller of an inking unit or of a dampening unit of the printing unit and with at least one traverse drive for generating an axial traversing stroke of the roller, and also with at least one drive for the moving of the roller in a rotary manner. A magnetic coupling, which is comprised of an inner rotor and an outer rotor, is arranged between the roller and the drive. In order to compensate for the traversing stroke of the roller, the inner rotor and the outer rotor are movable relative to each other in the direction of the axis of rotation of the roller.

Abstract: A roller of a printing machine includes a device for use in the generation of an axial oscillating movement of the rotating roller. The device includes a drive that is comprised of a pump which pressurizes a working fluid. The pump is arranged inside of the roller.

Abstract: An offset printing press is provided including a plate cylinder and a fluid dispersing unit dispersing fluid to the plate cylinder. The fluid dispersing unit includes a vibrator roll, a shaft supporting the vibrator roll and a motor including a coil and a magnet. The coil is disposed about the magnet and the magnet or the coil is mounted on the shaft. The motor oscillates the vibrator roll axially. A vibrating assembly for a fluid dispersing unit of a printing press is also provided.

Abstract: A roller of a printing machine includes a device for use in the generation of an axial oscillating movement of the rotating roller. The device includes a drive that is comprised of a pump which pressurizes a working fluid. The pump is arranged inside of the roller.

Abstract: A press contains an oscillating doctor and a motor for driving the oscillating doctor axially. The press further has at least one oscillating roller (ink distributor roller and/or damping solution distributor roller) and an oscillating mechanism, via which the oscillating roller is connected to the motor such that the oscillating roller and the oscillating doctor can be driven axially together by the motor.

Abstract: The inking system of an offset lithography press incorporates certain rollers running at different speeds. The hard rollers do not oscillate and the form rollers and the soft transfer rollers of the inking system oscillate endways.

Abstract: An oscillation amount adjusting device for an oscillating roller has a sleeve detent plate for restraining the rotation of a sleeve. An operator manually loosens a sleeve locking bolt to render the sleeve rotatable relative to a rotating shaft supporting the sleeve. The rotation of the sleeve is restrained by the sleeve detent plate. In this state, the rotating shaft supporting the sleeve is rotated by an oscillation drive motor to adjust the oscillation amount of oscillating rollers.

Abstract: A printing press contains a distributor roller, an oscillating roller which has a roller axle and a roller barrel, and a switching device for optionally releasing, in a first operating mode, and locking, in a second operating mode, an oscillating movement of the roller barrel. The oscillating movement is driven frictionally by the distributor roller. The switching device is disposed separately from the roller axle and the roller axle is mounted so as to be adjustable relative to the switching device.

Abstract: In an oscillating roller swing device including an oscillating roller, a rotating shaft having an inclined shaft portion, a cylindrical sleeve rotatably supported on the inclined shaft portion of the rotating shaft, a disk rotatably supported on the sleeve, and an oscillation drive motor for rotating the rotating shaft, an oscillation amount adjusting device for an oscillating roller comprises: a fitting groove provided in the sleeve; a parallel shaft portion having an axis parallel to the axis of the oscillating roller; a rotating member rotatably supported on the parallel shaft portion and provided with a fitting protrusion engaging the fitting groove of the sleeve; and an oscillation amount adjusting motor for rotating the rotating member relative to the rotating shaft.

Abstract: An oscillating mechanism for a distributor roll of a press has a spatial crank mechanism.

Abstract: A printing group of a printing press is comprised of at least one pair of cylinders which include a form cylinder and a transfer cylinder. The transfer cylinder cooperates with an impression cylinder to apply ink to a web of material, with the web being guided vertically. The circumference of at least one of the transfer cylinders and the impression cylinder is an integral multiple, greater than one of the circumference of the form cylinder. The transfer cylinder and the form cylinder have respective drive motors that are mechanically independent from the drive of the respective other cylinder.

Abstract: An oscillation amount adjusting device for an oscillating roller has a sleeve detent plate for restraining the rotation of a sleeve. An operator manually loosens a sleeve locking bolt to render the sleeve rotatable relative to a rotating shaft supporting the sleeve. The rotation of the sleeve is restrained by the sleeve detent plate. In this state, the rotating shaft supporting the sleeve is rotated by an oscillation drive motor to adjust the oscillation amount of oscillating rollers.

Abstract: A printing group, which includes at least one rotation element, that can be rotated about its longitudinal direction, and than can also be displaced axially, includes a drive. That drive for the rotational element can be a drive motor which is independent of the drive of the printing group cylinders. The drive can be effected through a rotationally fixed and coaxially linked drive wheel, and a flexible drive. In order to achieve a lateral travel of the rotational element, the printing group is provided with a supplementary drive motor.

Abstract: A short inking unit for a rotary printing machine is provided. The short inking unit includes a changeable machine glazing cylinder.

Abstract: A printing press comprises an oscillating roller capable of rotating circumferentially and moving axially in a reciprocating manner, and does rainbow printing on a sheet, supplied from a feeder, in a printing unit. The printing press includes an oscillation width control device and an oscillation frequency control device for exercising control such that the oscillating roller moves axially in a reciprocating manner when printing is started in a state in which the axially moving motion of the oscillating roller is at a standstill. The printing press can automatically start the oscillating motion of the ink oscillating roller when printing is started from the state of the oscillating motion of the oscillating roller being stopped at the time of ink conditioning in rainbow printing, thereby decreasing the number of defective sheets and improving the ease of operation.

Abstract: A lithographic printing method of supplying emulsion ink to a lithographic printing plate via a form roller, and disrupting emulsion on the form roller. The degree of the emulsion's disruption before printing has started is different from the degree of disruption after printing has started. The duration of an idling mode can be shortened with the added advantage of reducing the development of waste paper right after the start of printing.

Abstract: An inking unit for a printing machine, which is assigned to a printing form, includes a first distributor roller and a second distributor roller, the first distributor roller being in rolling contact simultaneously with two ink applicator rollers, and being axially oscillatable more slowly and disposed more closely to the printing form than is the second distributor roller; and a printing machine including the inking unit.

Abstract: A combination of a distributor roller of a printing machine and a traversing mechanism for the distributor roller, includes worm gearing with an externally toothed worm and a worm wheel meshing therewith. The worm gearing is disposed in the distributor roller. The invention also includes an inking unit of a printing machine, which has the combination as well as a printing press having the combination.

Abstract: A distribution drive for a roll in a processing machine, and particularly in a press which has an improved axial motion distribution mechanism and which requires little installation space. This is achieved by an input drive mechanism coupled to a drive having at least one pinion gear 8 which is coupled to a gear 10. Arranged on a side face of the gear 10 is a first pin 17 which, together with a second pin 22, forms a rotary joint 20 by the first pin 17 penetrating the second pin 22. Together with a bearing arm 23, the second pin 22 forms a sliding joint 21, with the second pin 22 being accommodated at the ends in the bearing arm 23, and the bearing arm 23 being coupled to the roll 3.

Abstract: A method for producing an effect upon an emulsion formed of a printing ink and a dampening solution on a roller in a printing machine includes introducing oscillations produced by an oscillation exciting device of the printing machine, which oscillates at a frequency corresponding to that of ultrasound, into the emulsion on the roller; and a device suitable for performing the method.

Abstract: A rotary press includes a first motor for rotating a first rotary member; a second rotary member rotatable by the first motor and movable in an axial direction thereof; a second motor for moving the second rotary member in the axial direction and rotating the second rotary member; a connecting/disconnecting mechanism for permitting and stopping transmission of rotation from the first motor to the second rotary member; and a clutch for stopping transmission of rotation from the second motor to the second rotary member when the first motor is connected to the second rotary member by the connecting/disconnecting mechanism such that the first motor can rotate the second rotary member and for connecting the second motor with the second rotary member such that the second motor can rotate the second rotary member when transmission of rotation from the first motor to the second rotary member is stopped.

Abstract: Ink distribution to the transfer roller of a printing machine is rapidly influenced. The ink duct roller is driven at a maximum speed and the ink distribution roller is caused to rotate at the ink duct roller speed. The ink vibrator roller is brought ink continuous engagement with these two rollers and is brought out of contact with its oscillating drive mechanism. The ink fountain is closed and excess ink is conveyed back to it. The original speeds of the ink duct roller and the ink distribution roller are re-established and the oscillating drive of the vibrator roller is resumed.

Abstract: A crank mechanism for use in a rotary printing press is capable of varying the crank stroke length while the rotary printing press is operating. A rotatable eccentric journal and an eccentric bushing are shiftable with respect to each other. A helical groove and a cooperating pin are used to shift the eccentricities of the journal and the bushing to vary the effective stroke length of the crank mechanism.