Man Roland Druckmaschinen Ag

Manroland Ag

Manroland Web Systems Gmbh

Norbert Dylla

Rainer Burger

Thomas John

Michael Worner

Eduard Hoffmann

Günter Koppelkamm

Thomas Gsell

Josef Hammer

Anton Hamm

Stefan Albrecht

Helmut Stuhlmiller

Alfons Baintner

Bernd Hennig

Otto Spang

Max Eder

Thomas Böck

Johann Schlittenbauer

Manfred Stegmeir

Ernst Marny

Siegfried Schmid

Johann Oschay

Rudolf Eckert

Wolfgang K&auml;ser

Rainer Liebold

Wolfgang Käser

Ulrich Geiger

Karl-Heinz Bienert

Maximilian Eder

Hans Wolf

Hans-Eckard Mamberer

Schmid Siegfried

A printing unit of a web-fed rotary press has a plurality of press units, each press unit having a form cylinder, a transfer cylinder, an inking unit and optionally a damping unit, and having at least one impression cylinder. Each form cylinder rolls on the respective transfer cylinder and each transfer cylinder rolling on an impression cylinder in a thrown-on position of the printing unit, in order to apply single-color printed images onto a printing material which is moved through between the transfer cylinders and the or each impression cylinder. Each form cylinder bears a plurality of printing images next to one another in the axial direction, by which corresponding single-color printed images are applied to the printing material. The printing images which are arranged next to one another in the axial direction of the respective form cylinder are offset with respect to one another in the circumferential direction in such a way that deviations in the circumferential register between the single-color printed images which are to be printed in different press units can be compensated for.

Printing unit of a web-fed rotary press

A cylinder for an offset printing press comprising a steel core and a heat-conducting layer arranged on the steel core in order to uniformly distribute localized steel core heating. The heat can consist of copper and can be arranged in or underneath a functional layer on the cylinder.

Rolls and cylinders with a steel core for offset presses

A web-fed press includes at least two printing units and at least one drier for drying at least one printing-material web which is moved through the at least two printing units and printed on at least one side with at least one offset printing ink at each of the printing units. The printing-material web is dried at least after the first printing unit and before the second printing unit.

Web-fed rotary press and method for operating it

A web fed rotary printing unit is provided. The printing unit includes a plurality of cylinders including a first cylinder assigned a first adjustable drive motor and a second cylinder assigned a second adjustable drive motor. The first and second cylinders are in a mechanical drive connection that can be moved between engaged and disengaged positions. When the mechanical drive connection is engaged, the first drive motor assigned to the first cylinder forms a master drive in dependence on which the second drive motor assigned to the second cylinder can be controlled in the manner of a slave drive.

Web-fed rotary printing unit

An apparatus and method for reducing oscillations in a web-fed rotary press are disclosed. The apparatus includes a form cylinder of a web-fed rotary press, having at least one clamping device for fastening at least one printing plate on the form cylinder. The clamping device has at least one clamping element which is positioned in a clamping channel. As seen in a circumferential direction, the clamping channel of the form cylinder has an effective clamping-channel width of at most 7 mm.

Apparatus and method for reducing oscillations in a web-fed rotary press

An inking unit for a rotary printing machine includes an ink fountain, a pivotable ink fountain holder in which the ink fountain is mounted, an ink ductor, and a pivotable ink ductor holder in which the ink ductor is mounted. The ink ductor holder and the ink fountain holder are connected by an operating cylinder so that ductor and the ink fountain can be pivoted jointly to a first position in which ink flows out of the ductor without flowing out of the fountain, and so that the ductor can be pivoted away from the first position to a second position while the ink fountain remains in the first position, thereby creating a gap between the ductor and the ink fountain.

Inking unit for rotary printing machine

A nine-cylinder satellite printing unit includes printing stations having a first, second, third and fourth transfer cylinder which a web passes through. The transfer cylinders are capable of being stopped when the printing assembly is switched off. A distance between each of the first and second transfer cylinders, the second and third transfer cylinders, and the third and fourth transfer cylinder is shorter than the distance between the first and fourth transfer cylinder. A guide roller keeps a supplied portion of the web away from the first transfer cylinder and another guide roller keeps a discharged portion web away from the fourth transfer cylinder when the first and fourth printing cylinders are respectively in print thrown-off positions.

Nine-cylinder satellite printing unit

An anilox inking unit for an offset printing machine having an anilox roll having a rotation direction and a fluid blowing device arranged along the anilox roll . The blowing device is disposed downstream of a working doctor with respect to the rotation direction of the anilox roll and upstream of the ink transfer point. In accordance with one embodiment, the fluid being blown by the blowing device is ambient air.

Anilox inking unit for a rotary offset printing machine

A rotary printing machine with an understructure that can be simply assembled from girders and then simply disassembled. The girders are connected to one another by removable attachment elements. For example, metal plates are used to connect the girders to one another. The understructure can be disassembled at one location and then reassembled at a different location.

Rotary printing machine with an understructure

A method and an apparatus for forming and gripping a beginning of a web of a replacement roll. At least one suction ledge is placed on an outer layer of the roll in a position in which the suction ledge extends parallel to the axis of the roll. The outer layer is raised by the suction ledge so that the outer layer is tensioned. The tensioned outer layer is cut parallel to and on the waste paper side of the suction ledge. Finally, the web beginning is lifted off by the suction ledge.

Method and apparatus for forming and gripping a web beginning of a

To form and hold a loose starting flap (5) of a replacement paper roll (1) in which the replacement paper roll has a starting portion which is adhered to an underlying layer of the roll, with a simple easily made and reliable apparatus, the uppermost layer of the roll is perforated by a perforating wheel (8) or an intermittently operated laser (1008) inwardly of the end edge of the starting portion along a perforation line (3) which extends essentially parallel to the axis of the roll to form a flap portion. A temporary or permanently adhering element, such as a suction roll (912), a suction bar, an adhesively coated strip or bar (812) or a roller (912) with an adhesive surface (9, 909, 912) is moved with respect to the flap portion close to the perforation line (3). The adhering element is then moved relative to the roll, either away from the circumference, radially or otherwise, or the roll is rotated, for example in clockwise direction, so that the uppermost layer will tear at the perforation line and form a flap (5), which will be retained, by adhesion, against the adhering element.

Method and apparatus for formation and holding of a loose starting flap

To automate the preparation of a replacement paper roll for flying roll changing, initial layer portions of web material from the replacement paper roll and which, typically, are damaged, are rolled on a scrap roll (2) to form scrap material windings thereon. In a first moving step, the scrap roll (2) is placed in engagement with the replacement paper roll to wind scrap material thereon. When a sensing element (22) senses that the paper is suitable for printing, the scrap roll is moved away from the replacement roll (1) and into a preparation or processing position (FIG. 11). At that processing position, two spaced axially extending perforation or tear lines (4, 5) are formed in the beginning portion. In a third moving step, the beginning portion is placed in engagement with the paper roll by moving the scrap roll back towards the replacement roll and, preferably, adhered thereto temporarily by a holding adhesive. In a fourth moving step, the paper on the scrap roll and on the replacement is severed along one (5) of the perforating lines, and the scrap roll is then moved away from the replacement roll for removal of scrap material thereon. Preferably, all elements other than the replacement paper roll are retained in a frame which can be moved towards and away from the replacement roll, and includes the elements, as well as drive and guide devices therefor.

Method and apparatus for preparing a replacement paper roll for flying

To prepare an initial portion (41) on a replacement roll (4) of a substrate web, for example a printing paper web, for flying pasting, the new roll (4) is rotatably supported in apredetermined position. An adhesive application and cutter structure (5) is then placed in operative association with the roll. An initial portion (41) of the web is rolled off from the new roll, positioned on the support plate, and, in one operating step, an end, which may be jagged, is cut off and, inwardly of the cut edge (42), a perforating or tear-off line (43) is formed, to leave, between the cut edge and the tear-off line, a tear-off section (44). The web can then be repositioned on the plate (6) and a connecting adhesive (19) is applied to the upper side of the web, for subsequent flying pasting against a moving expiring web, for example, as well as a holding adhesive, applied in the inside of the tear-off section (44), so that the end portion (41) is securely attached to the roll. Preferably, the cutter and perforating blades are located on a single support block; and the adhesive applicators, likewise, are retained on a common support structure, which may be coupled with the blade support structure, for conjoint movement across the web.

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Stadtbergen, Germany

Norbert Dylla