EP0705691A1 - Sheet transfer cylinder for a rotary printing machine - Google Patents

Sheet transfer cylinder for a rotary printing machine Download PDF

Info

Publication number
EP0705691A1
EP0705691A1 EP95112719A EP95112719A EP0705691A1 EP 0705691 A1 EP0705691 A1 EP 0705691A1 EP 95112719 A EP95112719 A EP 95112719A EP 95112719 A EP95112719 A EP 95112719A EP 0705691 A1 EP0705691 A1 EP 0705691A1
Authority
EP
European Patent Office
Prior art keywords
gripper
positioning device
wedge
guiding drum
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95112719A
Other languages
German (de)
French (fr)
Other versions
EP0705691B1 (en
Inventor
Klemens Kemmerer
Franz-Peter Richter
Harald Bayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0705691A1 publication Critical patent/EP0705691A1/en
Application granted granted Critical
Publication of EP0705691B1 publication Critical patent/EP0705691B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F21/00Devices for conveying sheets through printing apparatus or machines
    • B41F21/10Combinations of transfer drums and grippers

Definitions

  • the invention relates to a sheet-guiding drum between the printing units or further processing units of rotary printing presses using one or more gripper bridges, which are distributed uniformly around the drum circumference and can be adjusted to different substrate thicknesses.
  • a central gripper turn bar adjustment for two- and multiple-sized transfer drums is known.
  • Means acting on the gripper pads allow the individual adjustment of each pad and on these means act altogether the positioning means which adjust the gripper pads and which are actuated by a central adjusting device arranged on the drum body.
  • the central actuating device can be motor-driven and controlled from a control panel. Instructions on how to couple the drive to the actuator cannot be found.
  • a device for positioning the gripper support of a gripper bridge of a sheet guiding cylinder is known.
  • the positioning of the gripper pad is carried out by means of an adjusting rod which is arranged in the cylinder axis against spring force by means of a screw and is arranged under a gripper pad extending over the entire length of the cylinder.
  • the contact surfaces of the gripper support and adjusting rods form a thrust wedge transmission in the cylinder axis direction, such that a displacement of the adjusting rod effects the radial positioning of the gripper supports.
  • the disadvantage is that a high level of effort is required for the central adjustment of the gripper bars to the respective substrate thickness.
  • basic and fine adjustment of the gripper bar is necessary in order to enable a common adjustment of all gripper bar.
  • a separate adjustment of the gripper bar is not possible, for example to avoid inaccuracies when transferring or taking over sheets between sheet-guiding cylinders or if the gripper bar is inadvertently adjusted.
  • the object of the invention is to make a decentralized individual adjustment (raising or lowering) of all gripper bridges of sheet-guiding drums in a printing press together to the substrate thickness to be processed.
  • the solution according to the invention is primarily suitable for sheet-guiding drums (bypass drums), it can also be used on sheet-guiding cylinders and is therefore also suitable for adjusting the gripper bar for feed drums or pre-gripper cylinders.
  • the present invention is particularly suitable for one to four times the size of drums (based on a single-size impression cylinder) with the corresponding number of gripper bridges arranged symmetrically on the circumference. It is used to process substrates of different thicknesses, such as paper or cardboard.
  • the decentralized individual adjustment of the gripper pads of all sheet-guiding drums in a printing press shortens the changeover times and minimizes subjective influences.
  • the invention represents an economical, automatable solution.
  • the actuating device on the side frame is preferably aligned with the circle of positioning devices resulting in printing operation, the actuation being carried out by an electric motor or a pneumatically or hydraulically operated working cylinder.
  • the adjustment movement of the positioning device is transmitted by periodically coupling the actuating device to the adapters arranged on the rotating, sheet-guiding drum and assigned to the positioning device.
  • the gripper cantilever bars can be set to any printing material thickness, in that the two actuating devices act differentially controlled on the positioning device. In printing practice, a simple changeover (two positions) of the gripper bars from paper to cardboard and vice versa has also proven its worth.
  • the sheet-guiding drums of the printing machine do not have to be rotated into a defined angular position, but all or even individual gripper cantilevers are moved past the positioned actuating devices on their circle at low speed in the creep speed of the printing machine, so that periodically a coupling of actuating device and adapter that adjusts the positioning device the positioning device.
  • the activation of the actuating device acting on the positioning device is controlled manually in the control center of a printing press by the operator or by a device for recording substrate thickness detection, which is coupled with the control station in terms of circuitry.
  • a sheet-guiding drum 1 is arranged downstream of a printing cylinder of the previous printing unit in an offset rotary printing press, and a printing cylinder of a further printing unit is arranged downstream of the drum 1.
  • the drum 1 is designed with a double-size printing cylinder and thus carries two gripper bridges 13. Both gripper bridges 13 are arranged symmetrically distributed around the circumference of the drum 1 (offset by 180 °).
  • Each gripper bridge 13 consists of a gripper shaft, grippers and gripper bar 2, which can be adjusted in approximately radial direction.
  • the gripper bar 2 carries supporting blocks for each gripper for the individual gripper bar.
  • the drum 1 is rotatably received with two drum journals in one bearing of a side frame 11.
  • Each gripper bar 2 is assigned a positioning device 3 which, depending on the substrate thickness, causes the gripper bar 2 to be raised or lowered.
  • the positioning device 3 is axially movably mounted on the drum body 1.
  • two positioning devices 3 are thus arranged, each of which is formed by a positioning rod 4 and a plurality of wedge-shaped elements 5 attached to it.
  • the wedge-shaped elements 5 of a positioning device 3 are assigned to several wedge-shaped elements of the gripper bar 2.
  • the wedge-shaped elements 5 and the wedge-shaped elements of the gripper bar 2 each form a sliding joint in the form of a push wedge.
  • Each wedge-shaped element 5 on the positioning rod 4 acts as a drive member
  • each wedge-shaped element 5 of the gripper bar 2 acts as an output member.
  • the gripper bar 2 is spring-loaded against the positioning device 3.
  • Adapters 12 are arranged at the free ends of the positioning rod 4.
  • An adapter 12 can for example be designed as a holder with a rotatable roller and has an adjustment option between the positioning rod 4.
  • the adapter 12 has a contact surface pointing in the direction of the side frame 11.
  • the actuating device 6 is a pneumatic working cylinder.
  • Each pneumatic actuation device 6 is coupled to an energy supply 8, here a pneumatic system.
  • the energy supply 8 is coupled to a control station 9 of a printing press, which is connected in terms of circuitry to a printing material thickness detection device 10.
  • the substrate thickness detection device 10 is arranged on the printing press in front of the first printing unit and can e.g. be integrated in a double sheet control device.
  • the design of the sheet-guiding drum 1 according to the invention is not limited to the automated adjustment of the gripper bar 2. Rather, the adjustment can be controlled manually starting from the control station 9 or the energy supply 8 or the actuating device 6.
  • a drum 1 takes over a printed sheet from the printing cylinder of an upstream printing unit and transfers this sheet to the printing cylinder of the downstream printing unit. If a substrate with a different thickness (thickness) is to be processed, it is necessary to set the gripper bars 2 higher or lower.
  • the energy supply 8 is activated manually or automatically via the control center 9.
  • the actuating device 6, here as a single-acting pneumatic working cylinder, is controlled with compressed air via a line system 7. This causes the piston of one actuator 6 to extend, the opposite actuator 6 is stopped by the return spring.
  • the pistons of the actuating devices 6 carry a working surface at their free end. In the present version, the work surface is provided with a chamfer.
  • the printing press is set in rotation at the control station 9 or manually at low speed at slow speed.
  • the run-up slope of the extended actuating device 6 comes into contact with the adapter 12 of the first positioning device 3 while the drum 1 rotates and adjusts the positioning device 3 in the axial direction the gripper bar 2 is moved radially. If an actuating device 6 is activated in each case, then the gripper bar 2 is only adjusted in two positions (high or low position). This is generally sufficient for paper and board processing. If adjustment is to be made individually, both actuating devices 6 are actuated with compressed air and each is given a defined stroke which, as an axial movement of the positioning rod 4, brings about a radial adjustment of the gripper bar 2.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rotary Presses (AREA)

Abstract

The guide drum is used with a grip shaft, grips and grip impact borders adjustable for different sheet thicknesses. A positioning device (3) is fitted to act on the grip impact border (2) for individual setting of height and depth. The ends of this device can be coupled periodically to an operating device (6) via a power supply (8). The positioning device may be formed by an axially movable positioning rod (4) with several wedge-shaped elements (5). The wedge-shaped elements, acting with similar elements on the grip impact border, form a guide link in the form of a pushing wedge.

Description

Die Erfindung betrifft eine bogenführende Trommel zwischen den Druckwerken oder Weiterverarbeitungseinheiten von Rotationsdruckmaschinen unter Verwendung von einer oder mehreren Greiferbrücken, die gleichmäßig am Trommelumfang verteilt und auf unterschiedliche Bedruckstoffstärken einstellbar sind.The invention relates to a sheet-guiding drum between the printing units or further processing units of rotary printing presses using one or more gripper bridges, which are distributed uniformly around the drum circumference and can be adjusted to different substrate thicknesses.

Gemäß der DE 3 428 668 C2 ist eine zentrale Greiferaufschlagleistenverstellung für zwei- und mehrfachgroße Umführtrommeln bekannt. An die Greiferauflagen angreifende Mittel gestatten die Einzeljustage jeder Auflage und auf diese Mittel wirken insgesamt die greiferauflagenverstellende Positioniermittel ein, die von einer am Trommelkörper angeordneten zentralen Verstellvorrichtung betätigt werden. Die zentrale Stellvorrichtung kann dabei motorisch angetrieben und von einem Steuerpult aus gesteuert werden. Hinweise, wie der Antrieb mit der Stellvorrichtung zu koppeln ist, sind nicht zu entnehmen.According to DE 3 428 668 C2, a central gripper turn bar adjustment for two- and multiple-sized transfer drums is known. Means acting on the gripper pads allow the individual adjustment of each pad and on these means act altogether the positioning means which adjust the gripper pads and which are actuated by a central adjusting device arranged on the drum body. The central actuating device can be motor-driven and controlled from a control panel. Instructions on how to couple the drive to the actuator cannot be found.

Aus der GB 2 098 966 A ist eine Einrichtung zum Positionieren der Greiferauflage einer Greiferbrücke eines Bogenführungszylinders bekannt. Das Positionieren der Greiferauflage, je nach Dicke des zu verarbeitenden Bedruckstoffes, erfolgt mittels Einstellstange die in Zylinderachsrichtung gegen Federkraft mittels einer Schraube verschiebbar unter einer über die gesamte Zylinderlänge verlaufenden Greiferauflage angeordnet ist. Die Kontaktflächen von Greiferauflage und Einstellstangen bilden in Zylinderachsrichtung ein Schubkeilgetriebe, derart, daß eine Verschiebung der Einstellstange die radiale Positionierung der Greiferauflagen bewirkt.From GB 2 098 966 A a device for positioning the gripper support of a gripper bridge of a sheet guiding cylinder is known. The positioning of the gripper pad, depending on the thickness of the printing material to be processed, is carried out by means of an adjusting rod which is arranged in the cylinder axis against spring force by means of a screw and is arranged under a gripper pad extending over the entire length of the cylinder. The contact surfaces of the gripper support and adjusting rods form a thrust wedge transmission in the cylinder axis direction, such that a displacement of the adjusting rod effects the radial positioning of the gripper supports.

Nachteilig ist, daß zum zentralen Einstellen der Greiferaufschlagleisten auf die jeweilige Bedruckstoffstärke ein hoher Aufwand erforderlich ist. Bei Umführtrommeln mit mehreren Greiferbrücken nach DE 3 428 668 C2 ist eine Grund- und Feinjustierung der Greiferaufschlagleisten erforderlich um eine gemeinsame Verstellung aller Greiferaufschlagleisten zu ermöglichen. Danach ist eine separate Verstellung der Greiferaufschlagleisten, beispielsweise um Ungenauigkeiten bei der Bogenübergabe oder Bogenübernahme zwischen bogenführenden Zylindern zu vermeiden oder bei einer unbeabsichtigten Greiferaufschlagleistenverstellung, nicht möglich.The disadvantage is that a high level of effort is required for the central adjustment of the gripper bars to the respective substrate thickness. In the case of bypass drums with several gripper bridges according to DE 3 428 668 C2, basic and fine adjustment of the gripper bar is necessary in order to enable a common adjustment of all gripper bar. After that, a separate adjustment of the gripper bar is not possible, for example to avoid inaccuracies when transferring or taking over sheets between sheet-guiding cylinders or if the gripper bar is inadvertently adjusted.

Aufgabe der Erfindung ist es, eine dezentrale Einzelverstellung (Hoch- bzw. Tiefstellen) aller Greiferbrücken von bogenführenden Trommeln in einer Druckmaschine gemeinsam auf die zu verarbeitende Bedruckstoffstärke vorzunehmen.The object of the invention is to make a decentralized individual adjustment (raising or lowering) of all gripper bridges of sheet-guiding drums in a printing press together to the substrate thickness to be processed.

Gelöst wird das durch den kennzeichnenden Teil des Hauptanspruches. Weiterbildungen ergeben sich aus den Unteransprüchen. Die erfindungsgemäße Lösung ist vorwiegend für bogenführende Trommeln (Umführtrommeln) geeignet, sie ist darüberhinaus auch auf bogenführende Zylinder anwendbar und eignet sich somit auch zur Greiferaufschlagleistenverstellung bei Anlegetrommeln oder Vorgreiferzylindern. Die vorliegende Erfindung eignet sich insbesondere für ein- bis vierfachgroße Trommeln (bezogen auf einen einfachgroßen Druckzylinder) mit der entsprechenden Anzahl von symmetrisch am Umfang angeordneten Greiferbrücken. Sie dient der Verarbeitung von Bedruckstoffen mit unterschiedlicher Stärke, wie z.B. Papier oder Karton. Die dezentrale Einzelverstellung der Greiferauflagen aller bogenführenden Trommeln in einer Druckmaschine verkürzt die Umstellzeiten und minimiert subjektive Einflüsse. Weiterhin stellt die Erfindung eine wirtschaftliche, automatisierbare Lösung dar. Die Betätigungseinrichtung am Seitengestell ist vorzugsweise auf den im Druckbetrieb sich ergebenden Kreis der Positioniereinrichtungen ausgerichtet, wobei die Betätigung durch einen Elektromotor oder einen pneumatisch oder hydraulisch betriebenen Arbeitszylinder erfolgt. Ausgehend von einer fixierten Betätigungseinrichtung erfolgt die Übertragung der Verstellbewegung der Positioniereinrichtung durch eine periodische Koppelung der Betätigungseinrichtung mit den an der rotierenden, bogenführenden Trommel angeordneten, der Positioniereinrichtung zugeordneten, Adaptern. Durch die gegenüberliegende Anordnung von Betätigungseinrichtungen können die Greiferaufschlagleisten auf jede beliebige Bedruckstoffstärke eingestellt werden, indem beide Betätigungseinrichtungen differenziert angesteuert auf die Positioniereinrichtung wirken. In der Druckpraxis hat sich auch eine einfache Umstellung (zwei Stellungen) der Greiferaufschlagleisten von Papier auf Karton und umgekehrt bewährt. Dies wird in einer ersten Stellung erreicht, indem nur eine Betätigungseinrichtung angesteuert wird und die gegenüberliegende als Anschlag für die axial verschiebbare Positioniereinrichtung dient oder die angesteuerte Betätigungseinrichtung die Positioniereinrichtung in eine vorherbestimmte Stellung verbringt, in der diese arretiert wird. Die Umstellung in die zweite Stellung erfolgt durch eine umgekehrte Ansteuerung der Betätigungseinrichtung. Für die Papierverarbeitung ist die Greiferaufschlagleiste hoch und für die Kartonverarbeitung ist die Greiferaufschlagleiste tief zu stellen. Nach dem Verstellvorgang werden die Betätigungseinrichtungen von den Adaptern der Positioniereinrichtung entkoppelt. Die bogenführenden Trommeln der Druckmaschine müssen nicht in eine definierte Winkelposition gedreht werden, sondern sämtliche oder auch nur einzelne Greiferaufschlagleisten werden bei niedriger Drehzahl im Schleichgang der Druckmaschine an den positionierten Betätigungseinrichtungen auf ihrem Kreis vorbeibewegt, so daß periodisch eine die Positioniereinrichtung verstellende Kopplung von Betätigungseinrichtung und Adapter der Positioniereinrichtung erfolgt.This is solved by the characterizing part of the main claim. Further training results from the subclaims. The solution according to the invention is primarily suitable for sheet-guiding drums (bypass drums), it can also be used on sheet-guiding cylinders and is therefore also suitable for adjusting the gripper bar for feed drums or pre-gripper cylinders. The present invention is particularly suitable for one to four times the size of drums (based on a single-size impression cylinder) with the corresponding number of gripper bridges arranged symmetrically on the circumference. It is used to process substrates of different thicknesses, such as paper or cardboard. The decentralized individual adjustment of the gripper pads of all sheet-guiding drums in a printing press shortens the changeover times and minimizes subjective influences. Furthermore, the invention represents an economical, automatable solution. The actuating device on the side frame is preferably aligned with the circle of positioning devices resulting in printing operation, the actuation being carried out by an electric motor or a pneumatically or hydraulically operated working cylinder. Starting from a fixed Actuating device, the adjustment movement of the positioning device is transmitted by periodically coupling the actuating device to the adapters arranged on the rotating, sheet-guiding drum and assigned to the positioning device. Due to the opposite arrangement of actuating devices, the gripper cantilever bars can be set to any printing material thickness, in that the two actuating devices act differentially controlled on the positioning device. In printing practice, a simple changeover (two positions) of the gripper bars from paper to cardboard and vice versa has also proven its worth. This is achieved in a first position in that only one actuating device is actuated and the opposite one serves as a stop for the axially displaceable positioning device or the actuated actuating device moves the positioning device into a predetermined position in which it is locked. The changeover to the second position takes place by reverse actuation of the actuating device. The gripper bar is high for paper processing and the gripper bar is low for cardboard processing. After the adjustment process, the actuating devices are decoupled from the adapters of the positioning device. The sheet-guiding drums of the printing machine do not have to be rotated into a defined angular position, but all or even individual gripper cantilevers are moved past the positioned actuating devices on their circle at low speed in the creep speed of the printing machine, so that periodically a coupling of actuating device and adapter that adjusts the positioning device the positioning device.

Für die weitere Automatisierung wird im Leitstand einer Druckmaschine manuell durch den Bediener oder durch eine Einrichtung zur Bedruckstoffstärkenerfassung, die mit dem Leitstand schaltungstechnisch gekoppelt ist, die Aktivierung der auf die Positioniereinrichtung wirkenden Betätigungseinrichtung gesteuert.For further automation, the activation of the actuating device acting on the positioning device is controlled manually in the control center of a printing press by the operator or by a device for recording substrate thickness detection, which is coupled with the control station in terms of circuitry.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. Dabei zeigt:

Fig. 1
die Erfindung bei einer doppeltgroßen Trommel (Vorderansicht).
The invention will be explained in more detail using an exemplary embodiment. It shows:
Fig. 1
the invention in a double-sized drum (front view).

Eine bogenführende Trommel 1 ist in einer Offsetrotationsdruckmaschine einem Druckzylinder des vorhergehenden Druckwerkes nachgeordnet und der Trommel 1 ist ein Druckzylinder eines weiteren Druckwerkes nachgeordnet. Bezogen auf einen einfachgroßen Druckzylinder ist die Trommel 1 mit einem zweifachgroßen Druckzylinder ausgeführt und trägt somit zwei Greiferbrücken 13. Am Umfang der Trommel 1 sind beide Greiferbrücken 13 symmetrisch verteilt angeordnet (180° versetzt). Jede Greiferbrücke 13 besteht aus einer Greiferwelle, Greifern und in annähernd radialer Richtung einstellbare Greiferaufschlagleisten 2. Die Greiferaufschlagleiste 2 trägt für jeden Greifer zugeordnete Auflageklötzchen für die Einzelgreiferauflage.A sheet-guiding drum 1 is arranged downstream of a printing cylinder of the previous printing unit in an offset rotary printing press, and a printing cylinder of a further printing unit is arranged downstream of the drum 1. Relative to a single-size printing cylinder, the drum 1 is designed with a double-size printing cylinder and thus carries two gripper bridges 13. Both gripper bridges 13 are arranged symmetrically distributed around the circumference of the drum 1 (offset by 180 °). Each gripper bridge 13 consists of a gripper shaft, grippers and gripper bar 2, which can be adjusted in approximately radial direction. The gripper bar 2 carries supporting blocks for each gripper for the individual gripper bar.

Die Trommel 1 ist mit beiden Trommelzapfen drehbar in jeweils einer Lagerung eines Seitengestells 11 aufgenommen. Jeder Greiferaufschlagleiste 2 ist eine Positioniereinrichtung 3 zugeordnet, die abhängig von der Bedruckstoffstärke das Hoch- oder Tiefstellen der Greiferaufschlagleiste 2 bewirkt. Die Postioniereinrichtung 3 ist axial beweglich am Trommelkörper 1 gelagert. Bei einer zweifachgroßen Trommel 1 sind somit zwei Positioniereinrichtungen 3 angeordnet, die jeweils durch eine Positionierstange 4 und mehrere daran befestigte keilförmige Elemente 5 gebildet sind. Die keilförmigen Elemente 5 einer Positioniereinrichtung 3 sind mehreren keilförmigen Elementen der Greiferaufschlagleiste 2 zugeordnet. Die keilförmigen Elemente 5 sowie die keilförmigen Elemente der Greiferaufschlagleiste 2 bilden je ein Gleitgelenk in Form eines Schubkeiles. Jedes keilförmige Element 5 an der Positionierstange 4 wirkt dabei als Antriebsglied, jedes keilförmige Element 5 der Greiferaufschlagleiste 2 wirkt als Abtriebsglied. Die Greiferaufschlagleiste 2 ist federbelastet gegen die Positioniereinrichtung 3 abgestützt.The drum 1 is rotatably received with two drum journals in one bearing of a side frame 11. Each gripper bar 2 is assigned a positioning device 3 which, depending on the substrate thickness, causes the gripper bar 2 to be raised or lowered. The positioning device 3 is axially movably mounted on the drum body 1. In a double-sized drum 1, two positioning devices 3 are thus arranged, each of which is formed by a positioning rod 4 and a plurality of wedge-shaped elements 5 attached to it. The wedge-shaped elements 5 of a positioning device 3 are assigned to several wedge-shaped elements of the gripper bar 2. The wedge-shaped elements 5 and the wedge-shaped elements of the gripper bar 2 each form a sliding joint in the form of a push wedge. Each wedge-shaped element 5 on the positioning rod 4 acts as a drive member, each wedge-shaped element 5 of the gripper bar 2 acts as an output member. The The gripper bar 2 is spring-loaded against the positioning device 3.

An den freien Enden der Positionierstange 4 sind Adapter 12 angeordnet. Ein Adapter 12 kann beispielsweise als Halterung mit einer drehbaren Rolle ausgeführt sein und besitzt zwischen der Positionierstange 4 eine Justiermöglichkeit. Der Adapter 12 besitzt eine in Richtung Seitengestell 11 weisende Kontaktfläche. Bei Drehung der Trommel 1 entsteht durch die Positioniereinrichtungen 3 ein gedachter Kreis. Fluchtend zu diesem Kreis sind in beiden Seitengestellen 11 Betätigungseinrichtungen 6 angeordnet. Im vorliegenden Beispiel ist die Betätigungseinrichtung 6 ein Pneumatik-Arbeitszylinder. Jede pneumatische Betätigungseinrichtung 6 ist mit einer Energieversorgung 8, hier ein Pneumatiksystem, gekoppelt. In bevorzugter, automatisierter Ausführung ist die Energieversorgung 8 mit einem Leitstand 9 einer Druckmaschine gekoppelt, der schaltungstechnisch mit einer Bedruckstoffstärkenerfassungseinrichtung 10 verbunden ist. Die Bedruckstoffstärkenerfassungseinrichtung 10 ist an der Druckmaschine vor dem ersten Druckwerk angeordnet und kann z.B. in eine Doppelbogenkontrolleinrichtung integriert sein. Die erfindungsgemäße Ausführung der bogenführenden Trommel 1 ist jedoch nicht auf die automatisierte Verstellung der Greiferaufschlagleisten 2 beschränkt. Vielmehr läßt sich die Verstellung vom Leitstand 9 oder der Energieversorgung 8 bzw. der Betätigungseinrichtung 6 ausgehend manuell steuern.Adapters 12 are arranged at the free ends of the positioning rod 4. An adapter 12 can for example be designed as a holder with a rotatable roller and has an adjustment option between the positioning rod 4. The adapter 12 has a contact surface pointing in the direction of the side frame 11. When the drum 1 rotates, an imaginary circle is created by the positioning devices 3. Aligning to this circle 11 actuators 6 are arranged in both side frames. In the present example, the actuating device 6 is a pneumatic working cylinder. Each pneumatic actuation device 6 is coupled to an energy supply 8, here a pneumatic system. In a preferred, automated embodiment, the energy supply 8 is coupled to a control station 9 of a printing press, which is connected in terms of circuitry to a printing material thickness detection device 10. The substrate thickness detection device 10 is arranged on the printing press in front of the first printing unit and can e.g. be integrated in a double sheet control device. However, the design of the sheet-guiding drum 1 according to the invention is not limited to the automated adjustment of the gripper bar 2. Rather, the adjustment can be controlled manually starting from the control station 9 or the energy supply 8 or the actuating device 6.

Die Wirkungsweise ist wie folgt:
Eine Trommel 1 übernimmt einen bedruckten Bogen von dem Druckzylinder eines vorgeordneten Druckwerkes und übergibt diesen Bogen an den Druckzylinder des nachgeordneten Druckwerkes. Soll ein Bedruckstoff mit veränderter Dicke (Stärke) verarbeitet werden, ist es erforderlich, die Greiferaufschlagleisten 2 höher oder tiefer einzustellen. Die Energieversorgung 8 wird manuell oder auch automatisch über den Leitstand 9 aktiviert. Die Betätigungseinrichtung 6, hier als einfachwirkender Pneumatik-Arbeitszylinder, wird über ein Leitungssystem 7 mit Druckluft angesteuert. Dies bewirkt, daß der Kolben der einen Betätigungseinrichtung 6 ausgefahren wird, die gegenüberliegende Betätigungseinrichtung 6 ist über die Rückstellfeder stillgesetzt. Die Kolben der Betätigungseinrichtungen 6 tragen an ihrem freien Ende eine Arbeitsfläche. Die Arbeitsfläche ist in der vorliegenden Ausführung mit einer Anlaufschräge versehen. Die Druckmaschine wird über den Leitstand 9 oder manuell mit geringer Geschwindigkeit im Schleichgang in Rotation gesetzt. Die Anlaufschräge der ausgefahrenen Betätigungseinrichtung 6 kommt mit dem Adapter 12 der ersten Positioniereinrichtung 3 während die Trommel 1 dreht in Kontakt und verstellt in axialer Richtung die Positioniereinrichtung 3. Die keilförmigen Elemente 5 wirken als Schubkeil auf die keilförmigen Elemente (Hubkeil) der Greiferaufschlagleiste 2. Dadurch wird die Greiferaufschlagleiste 2 radial bewegt. Wird jeweils eine Betätigungseinrichtung 6 angesteuert, so wird die Greiferaufschlagleiste 2 nur in zwei Stellungen (Hoch- oder Tiefstellung) verstellt. Dies ist im allgemeinen für Papier- und Kartonverarbeitung ausreichend. Soll individuell verstellt werden, so werden beide Betätigungseinrichtungen 6 mit Druckluft angesteuert und jede erhält einen definierten Hub, der als axiale Bewegung der Positionierstange 4 eine radiale Verstellung der Greiferaufschlagleiste 2 bewirkt.
The mode of action is as follows:
A drum 1 takes over a printed sheet from the printing cylinder of an upstream printing unit and transfers this sheet to the printing cylinder of the downstream printing unit. If a substrate with a different thickness (thickness) is to be processed, it is necessary to set the gripper bars 2 higher or lower. The energy supply 8 is activated manually or automatically via the control center 9. The actuating device 6, here as a single-acting pneumatic working cylinder, is controlled with compressed air via a line system 7. This causes the piston of one actuator 6 to extend, the opposite actuator 6 is stopped by the return spring. The pistons of the actuating devices 6 carry a working surface at their free end. In the present version, the work surface is provided with a chamfer. The printing press is set in rotation at the control station 9 or manually at low speed at slow speed. The run-up slope of the extended actuating device 6 comes into contact with the adapter 12 of the first positioning device 3 while the drum 1 rotates and adjusts the positioning device 3 in the axial direction the gripper bar 2 is moved radially. If an actuating device 6 is activated in each case, then the gripper bar 2 is only adjusted in two positions (high or low position). This is generally sufficient for paper and board processing. If adjustment is to be made individually, both actuating devices 6 are actuated with compressed air and each is given a defined stroke which, as an axial movement of the positioning rod 4, brings about a radial adjustment of the gripper bar 2.

Um den Verstellvorgang bei allen Greiferbrücken 13 zu realisieren, ist bei jeder Trommel 1 lediglich eine Zylinderumdrehung erforderlich.In order to implement the adjustment process for all gripper bridges 13, only one cylinder revolution is required for each drum 1.

BezugszeichenlisteReference list

11
bogenführende Trommelbow-guiding drum
22nd
GreiferaufschlagleisteGripper impact bar
33rd
PositioniereinrichtungPositioning device
44th
PositionierstangePositioning rod
55
keilförmiges Elementwedge-shaped element
66
BetätigungseinrichtungActuator
77
LeitungssystemPipe system
88th
Energieversorgungpower supply
99
LeitstandControl center
1010th
BedruckstoffstärkenerfassungseinrichtungSubstrate thickness detection device
1111
SeitengestellSide frame
1212th
Adapteradapter
1313
GreiferbrückeGrab bridge

Claims (7)

Bogenführende Trommel für Rotationsdruckmaschinen unter Verwendung von jeweils aus Greiferwelle, Greifern und annähernd in radialer Richtung auf unterschiedliche Bedruckstoffstärken einstellbaren Greiferaufschlagleisten gebildeten und am Trommelumfang gleichmäßig verteilt angeordneten Greiferbrücken,
dadurch gekennzeichnet,
daß zum einzelnen Hoch- und Tiefstellen einer Greiferaufschlagleiste (2) eine an die Greiferaufschlagleiste (2) einwirkende Positioniereinrichtung (3) zugeordnet ist, deren Enden mit je einer an einem Seitengestell (11) beidseitig fixierten über eine Energieversorgung (8) ansteuerbaren Betätigungseinrichtung (6) periodisch koppelbar sind.
Sheet-guiding drum for rotary printing presses using gripper bar strips each formed from a gripper shaft, grippers and gripper bars that can be adjusted approximately in the radial direction to different substrate thicknesses and arranged uniformly distributed on the drum circumference,
characterized by
that a positioning device (3) acting on the gripper bar (2) is assigned to the individual raising and lowering of a gripper bar (2), the ends of which are each actuated by an energy supply (8) which can be actuated by an actuating device (6) which is fixed to a side frame (11) ) can be coupled periodically.
Bogenführende Trommel nach Anspruch 1,
dadurch gekennzeichnet,
daß die Positioniereinrichtung (3) durch eine axial bewegliche, mehrere keilförmige Elemente (5) aufweisende Positionierstange (4) gebildet ist, deren Elemente (5) mit zugeordneten keilförmigen Elementen der Greiferaufschlagleiste (2) ein Gleitgelenk in Form eines Schubkeils bilden.
Sheet guiding drum according to claim 1,
characterized by
that the positioning device (3) is formed by an axially movable positioning rod (4) having a plurality of wedge-shaped elements (5), the elements (5) of which, with associated wedge-shaped elements of the gripper bar (2), form a sliding joint in the form of a push wedge.
Bogenführende Trommel nach Anspruch 1,
dadurch gekennzeichnet,
daß der Positioniereinrichtung (13) zugeordnet je ein Adapter (12) fluchtend am freien Ende der Positionierstange (4) angeordnet ist.
Sheet guiding drum according to claim 1,
characterized by
that the positioning device (13) is assigned an adapter (12) in alignment at the free end of the positioning rod (4).
Bogenführende Trommel nach Anspruch 1 bis 3,
dadurch gekennzeichnet,
daß die Positioniereinrichtung (13) arretierbar ist.
Sheet guiding drum according to claims 1 to 3,
characterized by
that the positioning device (13) can be locked.
Bogenführende Trommel nach Anspruch 1,
dadurch gekennzeichnet,
daß der Adapter (12) justierbar ist.
Sheet guiding drum according to claim 1,
characterized by
that the adapter (12) is adjustable.
Bogenführende Trommel nach Anspruch 1,
dadurch gekennzeichnet,
daß die Betätigungseinrichtung (6) fluchtend mit jeder Postioniereinrichtung (3) korrespondiert.
Sheet guiding drum according to claim 1,
characterized by
that the actuating device (6) corresponds in alignment with each positioning device (3).
Bogenführende Trommel nach Anspruch 1,
dadurch gekennzeichnet,
daß die Betätigungseinrichtung (6) aus einem pneumatisch oder hydraulisch betätigten Arbeitszylinder oder einem elektrischen Antrieb gebildet ist.
Sheet guiding drum according to claim 1,
characterized by
that the actuating device (6) is formed from a pneumatically or hydraulically actuated working cylinder or an electric drive.
EP95112719A 1994-09-23 1995-08-11 Sheet transfer cylinder for a rotary printing machine Expired - Lifetime EP0705691B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433998A DE4433998A1 (en) 1994-09-23 1994-09-23 Sheet guiding drum for rotary printing machines
DE4433998 1994-09-23

Publications (2)

Publication Number Publication Date
EP0705691A1 true EP0705691A1 (en) 1996-04-10
EP0705691B1 EP0705691B1 (en) 1997-12-29

Family

ID=6529000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112719A Expired - Lifetime EP0705691B1 (en) 1994-09-23 1995-08-11 Sheet transfer cylinder for a rotary printing machine

Country Status (5)

Country Link
US (1) US5732628A (en)
EP (1) EP0705691B1 (en)
JP (1) JP2866037B2 (en)
AT (1) ATE161471T1 (en)
DE (2) DE4433998A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19642104C2 (en) * 1996-10-12 1998-09-10 Roland Man Druckmasch Arrangement for the decentralized individual adjustment of gripper cantilevers in sheet-guiding drums or cylinders of rotary printing presses
DE19739571B4 (en) * 1996-12-17 2007-05-31 Heidelberger Druckmaschinen Ag Adjusting device for a height adjustment of diametrically opposed gripper bars on sheet-guiding cylinders of printing machines
CN101301809B (en) * 2007-05-11 2012-05-30 海德堡印刷机械股份公司 Transfer drum between printing units of a sheet-fed printing press
US20090035046A1 (en) * 2007-07-31 2009-02-05 Belbey Jason S Print drum
DE102012010886A1 (en) 2012-06-01 2013-12-05 Heidelberger Druckmaschinen Aktiengesellschaft Transmission drum for conveying sheet, has driven element movable perpendicular to rotational axis and mounted at inclined surface of pushrod and coupled with holder, where pushrod is coupled with latch assembly
DE102013008780A1 (en) 2012-06-25 2014-01-02 Heidelberger Druckmaschinen Ag Transmission drum i.e. multiple-large transmission drum, for conveying arc in gripper, has positioning device including sequential circuit with drive link, and driven element arranged at body and coupled with holder

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174263A (en) * 1981-04-21 1982-10-26 Komori Printing Mach Co Ltd Claw base vertical mover for sheet printer
JPS57174262A (en) * 1981-04-21 1982-10-26 Komori Printing Mach Co Ltd Claw base vertical mover for sheet printer
GB2098966A (en) 1981-04-21 1982-12-01 Komori Printing Mach Gripper pad height adjusting device for sheet-fed rotary printing presses
DE3428668A1 (en) 1984-08-03 1986-02-13 Heidelberger Druckmaschinen Ag, 6900 Heidelberg DEVICE DRUM FOR SHEET PRINTING MACHINES, ESPECIALLY CARDBOARD MACHINES
DE3508699A1 (en) * 1985-03-12 1986-09-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach HEIGHT-ADJUSTABLE GRIPPER PADS FOR REVERSE DRUM GRIPPERS IN REVERSIBLE DRUMS OF BEAUTIFUL AND REPRINTING MACHINES
DE4233422C1 (en) * 1992-10-05 1994-01-13 Roland Man Druckmasch Sheet-grip mechanism for rotary printing press - has rollers at stop strip ends working against fixed cams to move it up and down
EP0652105A1 (en) * 1993-11-04 1995-05-10 MAN Roland Druckmaschinen AG Sheet transfer cylinder for a printing press

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143149C (en) * 1902-08-19 1903-08-14
CS149853B1 (en) * 1971-05-20 1973-08-23
US3985074A (en) * 1972-05-23 1976-10-12 Roneo Vickers Limited Offset printing machines
DE3024758C2 (en) * 1980-06-30 1985-02-21 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Sheet-fed offset printing machine for perfecting
US5324023A (en) * 1993-05-24 1994-06-28 Eastman Kodak Company Apparatus for securing flexible sheet material to a rotatable drum surface

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174263A (en) * 1981-04-21 1982-10-26 Komori Printing Mach Co Ltd Claw base vertical mover for sheet printer
JPS57174262A (en) * 1981-04-21 1982-10-26 Komori Printing Mach Co Ltd Claw base vertical mover for sheet printer
GB2098966A (en) 1981-04-21 1982-12-01 Komori Printing Mach Gripper pad height adjusting device for sheet-fed rotary printing presses
DE3428668A1 (en) 1984-08-03 1986-02-13 Heidelberger Druckmaschinen Ag, 6900 Heidelberg DEVICE DRUM FOR SHEET PRINTING MACHINES, ESPECIALLY CARDBOARD MACHINES
DE3508699A1 (en) * 1985-03-12 1986-09-25 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach HEIGHT-ADJUSTABLE GRIPPER PADS FOR REVERSE DRUM GRIPPERS IN REVERSIBLE DRUMS OF BEAUTIFUL AND REPRINTING MACHINES
DE4233422C1 (en) * 1992-10-05 1994-01-13 Roland Man Druckmasch Sheet-grip mechanism for rotary printing press - has rollers at stop strip ends working against fixed cams to move it up and down
EP0652105A1 (en) * 1993-11-04 1995-05-10 MAN Roland Druckmaschinen AG Sheet transfer cylinder for a printing press

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 20 (M - 188) 26 January 1983 (1983-01-26) *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 20 (M - 188) 26 October 1983 (1983-10-26) *

Also Published As

Publication number Publication date
US5732628A (en) 1998-03-31
EP0705691B1 (en) 1997-12-29
DE4433998A1 (en) 1996-04-04
DE59501160D1 (en) 1998-02-05
JP2866037B2 (en) 1999-03-08
ATE161471T1 (en) 1998-01-15
JPH08108521A (en) 1996-04-30

Similar Documents

Publication Publication Date Title
EP0234456B2 (en) Supplementary printing unit
DE60008196T2 (en) Device for exchangeable holding and positioning of printing cylinders in an offset printing machine
EP0425936B1 (en) Device for quickly registering, fixing and tensioning printing plates
DE4208179C2 (en) Method and device for the correct alignment and application of clichés on the lateral surfaces of forme cylinders
EP0652105B1 (en) Sheet transfer cylinder for a printing press
DE60221326T2 (en) Printing device, in particular flexographic printing machine
DE60031639T2 (en) Offset printing
EP0573833B1 (en) Apparatus for mounting printing plates in registered positions
EP2296887B1 (en) System and method for gripping a cylinder conducting ink in a printing press
EP0705691B1 (en) Sheet transfer cylinder for a rotary printing machine
EP0722831B1 (en) Method and arrangement for an electric motor for driving a rotary, in particular a printing cylinder of a printing machine
EP0835754B1 (en) Decentral individual adjustment of gripper supports in sheet feeding cylinders of rotary printing presses
EP0352625B1 (en) Sheet-folding device for a printing machine
DE4433999C2 (en) Sheet guiding drum for rotary printing machines
DE4434000C2 (en) Sheet guiding drum for rotary printing machines
EP0578161B1 (en) Printing element for a rotary printing machine with a plurality of carriages for a cylinder
DE19542160C1 (en) Sheet-feeding drum for rotary printing machine
DE3148667C1 (en) Device for exchanging printing medium between zones offset from one another in the longitudinal direction of the roller in the inking unit of a rotary printing press
EP3287281A1 (en) Processing tool and label printing machine with such a processing tool
EP0685337B1 (en) Device for adjusting the gripper support for grippers in a turning cylinder of a perfecting printing machine
DE10010205A1 (en) Axial braking adjustment unit for printer suction roller, has tipping moment free adjustment which positions sheets exactly
DE1139512B (en) Three-cylinder printing unit for optional use for indirect or direct printing
DE2119031B2 (en) Printing press inking roller adjustable bearing system - has first rotary tube with eccentric accommodating second one
DE19847085A1 (en) Pick-up unit for card-gluing machine provides for rapid and simple adaptation to the respective format
DE1086985B (en) Device for setting the positioning marks in a sheet processing machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19950825

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19970523

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19971229

REF Corresponds to:

Ref document number: 161471

Country of ref document: AT

Date of ref document: 19980115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19971229

REF Corresponds to:

Ref document number: 59501160

Country of ref document: DE

Date of ref document: 19980205

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990713

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19990719

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990722

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990818

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000831

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000831

BERE Be: lapsed

Owner name: MAN ROLAND DRUCKMASCHINEN A.G.

Effective date: 20000831

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20000811

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20020729

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050811

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080822

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100302