Abstract: A printing unit having at least one press unit, the, or each, press unit having at least one form cylinder, a transfer cylinder, an inking unit and preferably a damping unit, and having at least one imaging device for imaging and/or de-imaging a rewritable and erasable printing form positioned on the form cylinder. The inking unit, if appropriate together with the damping unit, can be pivoted with respect to a form cylinder from a printing position into a rest position. The imaging device can be pivoted with respect to the form cylinder from an imaging position into a rest position. The imaging device is pivoted into a rest position when the inking unit and, if appropriate, damping unit is pivoted into the printing position and, when the imaging device is pivoted into the imaging position, the inking unit and, if appropriate, the damping unit is pivoted into a rest position.

Abstract: In order to make handling easier, an apparatus for pulling a sleeve onto and off a printing-press cylinder has a head piece (8) having a positioning device (13) for defining the position of the head piece (8) with respect to the cylinder (1), a connecting device (14, 15) for fixing the head piece (8) to the cylinder (1), and a centering device (12) for defining the position of the sleeve (2) with respect to the head piece (8) and a deposition bar (9) for the sleeve (2), which deposition bar (9) is attached to the head piece (8).

Abstract: The invention provides an apparatus for the mounting and/or demounting of at least two printing sleeves outside a printing unit of a printing machine. The printing sleeves include an outer printing sleeve forming a printing surface and an inner printing sleeve providing diameter compensation between the outer printing sleeve and an impression cylinder of the printing machine. The apparatus having a reception device onto which an inner printing sleeve can be pushed for mounting the two printing sleeves. The apparatus having at least one compressed-air device for facilitating the fixing of the inner printing sleeve on the reception device and for conducting compressed air through orifices assigned to the inner printing sleeve in order thereby to make it possible for an outer printing sleeve to be pushed more easily onto the inner printing sleeve.

Abstract: A web-fed printing machine is provided. The printing machine includes a plurality of printing units. A first work station precedes the printing units. A second work station follows the printing units. At least one lifting device is assigned to the printing units for transporting printing unit modules. The lifting device is movably mounted on a top side of the printing units.

Abstract: A cylinder assembly for a printing press includes a pair of bearing assemblies mounted in side frames of a printing press, and a cylinder body having a pair of opposed end surfaces with no axle stubs clamped between the bearing assemblies. Each end surface is fixed to a respective bearing arrangement to form a connection, and at least one locking device can be operated from one end of the cylinder body to tighten or release the two connections.

Abstract: A printing unit for a web-fed rotary press includes a forme cylinder which receives at least one printing forme, an inking unit applying printing ink to the at least one printing forme on the forme cylinder, and a damping unit, if required, applying a damping solution to the at least one printing forme on the forme cylinder. The inking unit has inking unit rolls including ink applicator rolls and distributor rolls. The damping unit, if required, has damping unit rolls including a damping solution applicator roll and a distributor roll: When a format change is carried out adapting the inking unit and, if appropriate, the damping unit to a changing diameter of the forme cylinder, at least some of the inking unit rolls and, if appropriate, some of the damping unit rolls are displaced automatically while maintaining the contacts and while maintaining approximately constant line forces between inking unit rolls rolling on one another and, if appropriate, damping unit rolls rolling on one another.

Abstract: An apparatus for transporting printing sleeves is provided. The transport apparatus includes a housing with a bottom wall, a plurality of side walls, and at least one cover. A plurality of reception devices are mounted in the housing. Each reception device receives a printing sleeve in a vertically oriented transport position with a longitudinal mid-axes of the respective printing sleeve extending vertically. Each reception device is movable out of the housing into an outside position when the at least one cover of the housing is open. Each reception device is pivotable in the outside position such that the corresponding printing sleeve can be moved out of the vertical transport position into a horizontal extraction or insertion position.

Abstract: A method and apparatus for applying a medium, especially a conditioning medium or a rubber covering medium, to a printing form positioned on a form cylinder, especially to a rewritable and erasable printing form, is disclosed. The medium is applied to a rubber covered cylinder or to a separate applicator roll or an applicator cylinder for the medium, the medium then being transferred from the rubber covered cylinder or applicator roll or applicator cylinder to the form cylinder, in this case the rubber covered cylinder, the applicator roll or the applicator cylinder rolling repeatedly over the form cylinder in order to ensure a uniform application of the medium to the printing form.

Abstract: A printing unit having at least one press unit, the, or each, press unit having at least one form cylinder, a transfer cylinder, an inking unit and preferably a damping unit, and having at least one imaging device for imaging and/or de-imaging a rewritable and erasable printing form positioned on the form cylinder. The inking unit, if appropriate together with the damping unit, can be pivoted with respect to a form cylinder from a printing position into a rest position. The imaging device can be pivoted with respect to the form cylinder from an imaging position into a rest position. The imaging device is pivoted into a rest position when the inking unit and, if appropriate, damping unit is pivoted into the printing position and, when the imaging device is pivoted into the imaging position, the inking unit and, if appropriate, the damping unit is pivoted into a rest position.

Abstract: A rotary printing machine having a plurality of printing-unit cylinders mounted one above another on a side wall, their axes lying in a plane inclined with respect to the plane of the printing-material web. An image-setting device is arranged wholly within the range of the obtuse angle which is formed by the plane of inclination of the cylinders and the plane of the printing-material web.

Abstract: A web-fed printing machine is provided. The printing machine includes a plurality of printing units. A first work station precedes the printing units. A second work station follows the printing units. At least one lifting device is assigned to the printing units for transporting printing unit modules. The lifting device is movably mounted on a top side of the printing units.

Abstract: An apparatus for transporting printing sleeves is provided. The transport apparatus includes a housing with a bottom wall, a plurality of side walls, and at least one cover. A plurality of reception devices are mounted in the housing. Each reception device receives a printing sleeve in a vertically oriented transport position with a longitudinal mid-axes of the respective printing sleeve extending vertically. Each reception device is movable out of the housing into an outside position when the at least one cover of the housing is open. Each reception device is pivotable in the outside position such that the corresponding printing sleeve can be moved out of the vertical transport position into a horizontal extraction or insertion position.

Abstract: The invention provides an apparatus for the mounting and/or demounting of at least two printing sleeves outside a printing unit of a printing machine. The printing sleeves include an outer printing sleeve forming a printing surface and an inner printing sleeve providing diameter compensation between the outer printing sleeve and an impression cylinder of the printing machine. The apparatus having a reception device onto which an inner printing sleeve can be pushed for mounting the two printing sleeves. The apparatus having at least one compressed-air device for facilitating the fixing of the inner printing sleeve on the reception device and for conducting compressed air through orifices assigned to the inner printing sleeve in order thereby to make it possible for an outer printing sleeve to be pushed more easily onto the inner printing sleeve.

Abstract: In an apparatus for producing a printing image on a printing medium held by a cylinder (1) by a laser, the laser writing head (7) of which is positioned on a crossmember (3) so as to be displaceable parallel to the axis of the cylinder (1), a space-saving functionally reliable embodiment is attained by the fact that a protective switch (10) which detects the presence of a cylinder (1) is provided fixedly on the crossmember (3) and the crossmember (3) bears switching strips (5, 6) which expose a laser writing head displacement region (b) between them having the width of the printing image (8) and interact with a further protective switch (11) attached to the laser writing head (7) for switching off the laser when it is situated outside the laser writing head displacement region (b).

Abstract: Apparatus for producing printing plates in particular a blank sleeve-like printing plate, includes a cylinder carrier for receiving a printing plate, the cylinder carrier being held in cantilever fashion at one end in a frame in a mounting and is driven by a motor, it being possible for the printing plate to be pushed onto the carrier cylinder at an opposite side of the latter which faces away from the mounting and is, therefore, more accessible for making printing plate exchange. An image-setting device is moved along the carrier cylinder.

Abstract: A complete cleaning system for printing cylinders within a rotary printing press, by which a reactive erasing of ink-bearing layers, including the removal of filling materials from a gravure printing form, and a cleaning of ink from all form and transfer cylinders are possible during the printing process or during printing pauses. At least one erasing device is provided which emits a jet of water under pressure that can be directed against the corresponding outer surface of each desired cylinder so that, on the one hand, all traces of ink can be removed and, on the other hand, a reactive erasing of ink-conducting layers including filling materials from a gravure printing-form cylinder is possible.

Abstract: An apparatus for setting the lateral register of a printing unit of a rotary press that prints on a paper web includes a first bearing block configured as a locating bearing arranged on the drive side of a forme cylinder; and a second bearing block configured as a floating bearing on the operating side of the forme cylinder. A pressure medium operated operating cylinder displaces the first bearing block axially and presses it against an adjustable stop without play for the purpose of setting the lateral register. A controller controls the axial location of the adjustable stop in at least one of a closed-loop fashion and an open-loop fashion based on register deviations determined by a scanning optics unit.

Abstract: In order to manufacture a cylinder of a rotary printing machine cost-effectively, its cylinder body is assembled from a cylinder casing and a first and second side part located at the ends of the cylinder casing, one and the same first and second side part being capable of being completed in order to produce different cylinders casings of different outside diameters.

Abstract: To provide a varnishing apparatus for indirect printing with the lowest possible structural outlay, a varnishing mechanism of the varnishing apparatus for varnishing webs includes a form cylinder and a transfer cylinder, the web running between the transfer cylinders. At least one of the form cylinders bears a gravure printing form such that the web may be varnished on one or both sides.

Abstract: An aligning apparatus for heavy loads, in particular a printing unit, includes at least one support plate, which is rotatably mounted on a base plate screwed to an erection surface and can be positioned on the base plate with regard to its horizontal position by means of adjusting screws. Each support plate interacts with a vertical adjusting screw which is provided for adjusting the vertical position of the printing unit and can be fixed to the printing unit, each vertical adjusting screw being designed with a spherical end which is supported on the plate in a spherical recess designed with little play or as a locating fit.