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: In an apparatus for pulling off sleeves (11, 14) which are applied to cylinders (10, 15) of a printing press, a force for pulling off the sleeve is applied in a gentle manner, in that a retaining rod (5), having a retaining head (1) which can be fixed to the sleeve (11, 14), and a hammer weight which can be moved along the rod (5) between stops (7, 9) are provided.

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: 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: 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: 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: 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: 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.

Abstract: An apparatus for mounting a printing sleeve on a press cylinder includes an inherently stiff annular holding element having an inner shape which is matched to the outer shape of the sleeve, and mutually facing ends defining a slit having a width. At least one clamp urges the ends toward each other to form a butt joint, so that the holding element can clamp the sleeve with a clamping force which is limited by the width of the slit. A device is provided for expanding the holding element so that the clamping force on the sleeve can be released.

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 with cylinder casings of different outside diameters.

Abstract: A first structural unit includes a laser image-setting head, and a second structural unit includes a loading compartment to accommodate a cassette housing having a thermal transfer ribbon on spools having hubs. After a cassette is inserted in the loading compartment, the compartment is closed so that drive rollers engage the hubs without play. To produce a printing plate, the second structural unit is then brought over the first structural unit in the manner of a telescope by a moving device, and the thermal transfer ribbon is brought to the laser image-setting head. The thermal transfer ribbon inserted into the loading compartment is guided by self-centering means so that it does not contact the cassette housing, and is positioned with respect to the plate cylinder by guide rollers. Wear-free and therefore fast ribbon guidance can be performed, and automation of the movement sequences of the thermal transfer ribbon can be achieved.

Abstract: In order to provide a stand of a printing unit of a rotary printing machine, said stand being capable of being produced cost-effectively and having high inherent rigidity, a left-hand and a right-hand side wall are placed onto a bottom plate and screwed to the latter and are also provided with a cover plate, the cover plate resting with first locating faces on the side walls and with second locating faces against the side walls, the cover plate being screwed to the side walls at all the locating faces.

Abstract: A printing unit is provided for a web-fed rotary printing machine, having a plurality of cylinders with associated drive motor, an additional device for printing an at least two guide elements. At least one cylinder is a plate cylinder. At least one guide element corresponds to the plate cylinder and is operably arranged in the printing unit for determining a setting path of the corresponding plate cylinder relative to the other cylinders. This guide element extends as far as the additional device for printing.

Abstract: A printing unit for a web fed rotary printing machine is provided including a machine frame support, two sets of printing unit cylinders, carriages, drive motors and guide elements. The two sets of printing unit cylinders, include a plurality of outer printing unit cylinders and a plurality of inner printing unit cylinders. Each carriage corresponds to one printing unit cylinder for rotatably mounting its corresponding printing unit cylinder on the machine frame support. There is a drive motor for each carriage. Two sets of guide elements are arranged on the machine frame for determining a travel setting of the plurality of carriages along the machine frame support. The guide elements for the outer cylinders are arranged on the frame support in an orientation different than the guide elements for the inner cylinders so that movement of the outer printing unit cylinders is in a different direction than movement of the inner printing unit cylinders.

Abstract: A cylinder in equipment for making printing plates is provided which allows exposure of a cylinder that is mounted on both sides to be detached at a point of separation on a via side opposite its drive, a journal can be detached. The cylinder is driven by a blocking device capable of being fitted to a screw element which screws the journal to the cylinder and vice versa.

Abstract: An apparatus for producing printing plates on a supporting cylinder is provided. Mountings arranged on a frame accommodate a blank printing plate arranged on a supporting cylinder. The supporting cylinder is driven by a motor. The apparatus allows the supporting cylinder to be exposed at an end opposite the motor by its journal together with the mounting accommodating the journal. Thus, the supporting cylinder is capable of being moved away from the frame at one end, which makes it possible to draw the printing plate axially off the supporting cylinder. The apparatus can be used to produce a variety of printing plates, including: a relief printing plate, an offset printing plate, a sleeve-like printing plate, and a gravure printing plate.

Abstract: Rotary printing machine with forme and impression cylinders for variable-format or variable-circumference printing and with service apparatus which are capable of being moved radially in relation to the printing-unit cylinders for throw-on or throw-off movements and in the axial direction of the cylinders or in the side-wall plane. The service apparatus and the printing-unit cylinders are arranged on cross slides which can each be moved in two directions relative to the printing-unit side wall.