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EP0703074A2 - Sheet transfer cylinder for a printing press - Google Patents

Sheet transfer cylinder for a printing press Download PDF

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Publication number
EP0703074A2
EP0703074A2 EP95112721A EP95112721A EP0703074A2 EP 0703074 A2 EP0703074 A2 EP 0703074A2 EP 95112721 A EP95112721 A EP 95112721A EP 95112721 A EP95112721 A EP 95112721A EP 0703074 A2 EP0703074 A2 EP 0703074A2
Authority
EP
European Patent Office
Prior art keywords
gripper
positioning
bar
gripper bar
guiding drum
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
EP95112721A
Other languages
German (de)
French (fr)
Other versions
EP0703074B1 (en
EP0703074A3 (en
Inventor
Dietrich Dettinger
Roland Höll
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
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Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0703074A2 publication Critical patent/EP0703074A2/en
Publication of EP0703074A3 publication Critical patent/EP0703074A3/en
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations 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 overall, positioning means adjusting the gripper pads act on these means and are actuated by a central adjusting device.
  • 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 (raising and lowering) the gripper support of a gripper bridge of a sheet guiding cylinder is known.
  • the positioning of the gripper pads is carried out by means of an adjusting rod, which is arranged in the cylinder axial direction against spring force by means of a screw and is arranged under a gripper pad extending over the entire cylinder length.
  • 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 brings about the radial positioning of the gripper supports (set higher or lower).
  • 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 to enable an exact adjustment of all gripper bar.
  • a separate adjustment of the gripper bar for example to avoid inaccuracies in the sheet transfer or transfer between sheet-guiding cylinders or in the event of an unintentional gripper bar adjustment, is not possible.
  • An individual adjustment of each gripper bar is only possible manually by loosening the locked adjustment means.
  • the object of the invention is to make a separate adjustment (up or down) of all the gripper bridges of the sheet-guiding drum to the printing material thickness to be processed and to compensate for possible inaccuracies in the sheet transfer / sheet transfer.
  • 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 separate adjustment of the gripper pads of a sheet-guiding drum shortens the changeover time and minimizes subjective influences and eliminates inaccuracies when transferring or taking over sheets.
  • the invention represents an economical, automatable solution.
  • the installation position of the actuating device is flush with the positioning device on the drum body, such that there is no collision with the adjacent side frames. Each actuating device is controlled separately from the respective energy supply, in particular in succession.
  • a sheet-guiding drum 1 is arranged downstream of a printing cylinder of the preceding 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, based on a simple pressure cylinder, is designed with a diameter twice the size and thus carries two gripper bridges 12.
  • the two gripper bridges 12 are arranged symmetrically distributed (offset by 180 °).
  • Each gripper bridge 12 consists of a gripper shaft, grippers and gripper bar 2 which can be adjusted in approximately radial direction.
  • the gripper bar 2 carries support 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 movable 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 impact bar 2 each form a sliding joint in the form of a push wedge.
  • Each wedge-shaped element 5 arranged on the positioning rod 4 acts as a drive member, each wedge-shaped element of the gripper bar 2 acts as an output member.
  • the gripper bar 2 is spring-loaded against the positioning device 3.
  • An actuating device 7, in the present example a pneumatic cylinder, is arranged on the drum body 1 at a free end of each positioning device 3.
  • the actuating device 7 is coupled to the positioning rod 4 and is connected via a line system 8 to a rotary transducer 9 arranged on the drum journal.
  • the rotary transformer 9 is connected to a power supply 10, which controls each actuating device 7 separately.
  • the controlled compressed air supply takes place via a valve block.
  • Each positioning device 3 is limited in its axial stroke by adjustable stops 6.
  • each gripper bar 2 can be operated in two stages by the positioning device 3. The first stage (raising the gripper bar 2) is suitable for paper. The second stage (lowering the gripper bar 2) is suitable for cardboard.
  • the mode of action is as follows:
  • the drum 1 accepts a printed sheet from a printing cylinder of an upstream printing unit and transfers the sheet to the printing cylinder of the downstream printing unit. If a substrate with a changed thickness (thickness) is to be processed, it is necessary to set the gripper bar 2 higher or lower.
  • the energy supply 10 is activated manually or automatically, for example from a control center.
  • Each actuating device 7, here the pneumatic cylinder is controlled individually with compressed air in succession on the gripper bridge 12 in question. This causes the piston of the pneumatic cylinder to move the coupled positioning rod 4 axially up to the stop (first stage). The axial movement of the positioning rod 4 brings about the radial adjustment of the gripper bar 2 within two stages.
  • the adjustment in two stages has proven to be sufficient. For example, a distance between the upper edges of the gripper bars of a drum 1 and the adjacent printing cylinder is favorable for paper of approximately 0.2 mm and for cardboard of approximately 0.7 mm.

Landscapes

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

Abstract

The drum has gripping bridges evenly spaced round the periphery, each consisting of a shaft with grips and adjustable impact bars. Each bar (2) is separately adjustable for height and depth by a positioning mechanism (3). This is coupled to an actuating mechanism (7) on the drum, and which is moved separately by a controlled power source (10) via a rotary joint (9). The strokes of the positioning and actuating mechanisms can be varied by adjustable stops (6). The positioning mechanism can be formed by a bar (4) movable in the axial direction and with wedge-shaped components working with mating ones on the impact bar.

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 Greiferauflagen verstellende Positioniermittel ein, die von einer zentralen Stellvorrichtung 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 overall, positioning means adjusting the gripper pads act on these means and are actuated by a central adjusting device. 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 (Hoch- und Tiefstellen) der Greiferauflage einer Greiferbrücke eines Bogenführungszylinders bekannt. Das Positionieren der Greiferauflagen, 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 (höher oder tiefer stellen) bewirkt.From GB 2 098 966 A a device for positioning (raising and lowering) the gripper support of a gripper bridge of a sheet guiding cylinder is known. The positioning of the gripper pads, 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 axial direction against spring force by means of a screw and is arranged under a gripper pad extending over the entire cylinder length. 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 brings about the radial positioning of the gripper supports (set higher or lower).

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 genaue Verstellung aller Greiferaufschlagleisten zu ermöglichen. Danach ist eine separate Verstellung der Greiferaufschlagleisten, beispielsweise um Ungenauigkeiten bei der Bogenübernahme oder Bogenübergabe zwischen bogenführenden Zylindern zu vermeiden oder bei einer unbeabsichtigten Greiferaufschlagleistenverstellung, nicht möglich. Eine individuelle Verstellung jeder Greiferaufschlagleiste ist nur durch Lösen der arretierten Justiermittel manuell 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 transfer drums with several gripper bridges according to DE 3 428 668 C2, basic and fine adjustment of the gripper bar is necessary to enable an exact adjustment of all gripper bar. Thereafter, a separate adjustment of the gripper bar, for example to avoid inaccuracies in the sheet transfer or transfer between sheet-guiding cylinders or in the event of an unintentional gripper bar adjustment, is not possible. An individual adjustment of each gripper bar is only possible manually by loosening the locked adjustment means.

Aufgabe der Erfindung ist es, eine separate Verstellung (hoch bzw. tief stellen) aller Greiferbrücken der bogenführenden Trommel auf die zu verarbeitende Bedruckstoffstärke vorzunehmen und mögliche Ungenauigkeiten bei der Bogenübernahme/Bogenübergabe auszugleichen.The object of the invention is to make a separate adjustment (up or down) of all the gripper bridges of the sheet-guiding drum to the printing material thickness to be processed and to compensate for possible inaccuracies in the sheet transfer / sheet transfer.

Gelöst wird das durch den kennzeichnenden Teil des Hauptanspruches. Weiterbildungen ergeben sich aus den Unteransprüchen.This is solved by the characterizing part of the main claim. Further training results from the subclaims.

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 angeordnete Greiferbrücken. Sie dient der Verarbeitung von Bedruckstoffen mit unterschiedlicher Stärke, wie z.B. Papier oder Karton. Die separate Verstellung der Greiferauflagen einer bogenführenden Trommel verkürzt die Umstellzeit und minimiert subjektive Einflüsse und eliminiert Ungenauigkeiten bei der Bogenübergabe bzw. Bogenübernahme. Weiterhin stellt die Erfindung eine wirtschaftliche, automatisierbare Lösung dar. Die Einbaulage der Betätigungseinrichtung ist fluchtend mit der Positioniereinrichtung am Trommelkörper, derart, daß keine Kollision mit den benachbarten Seitengestellen eintritt. Jede Betätigungseinrichtung wird separat von der jeweiligen Energieversorgung, insbesondere in Folge, angesteuert.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 separate adjustment of the gripper pads of a sheet-guiding drum shortens the changeover time and minimizes subjective influences and eliminates inaccuracies when transferring or taking over sheets. Furthermore, the invention represents an economical, automatable solution. The installation position of the actuating device is flush with the positioning device on the drum body, such that there is no collision with the adjacent side frames. Each actuating device is controlled separately from the respective energy supply, in particular in succession.

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

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

Eine bogenführende Trommel 1 ist in einer Offset-Rotationsdruckmaschine einem Druckzylinder des vorhergehenden Druckwerkes nachgeordnet und der Trommel 1 ist ein Druckzylinder eines weiteren Druckwerkes nachgeordnet. Die Trommel 1 ist, bezogen auf einen einfachen Druckzylinder, mit einem zweifachgroßen Durchmesser ausgeführt und trägt somit zwei Greiferbrücken 12. Am Umfang der Trommel 1 sind die beiden Greiferbrücken 12 symmetrisch verteilt angeordnet (180° versetzt). Jede Greiferbrücke 12 besteht aus einer Greiferwelle, Greifern und in annähernd radialer Richtung einstellbaren 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 preceding 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, based on a simple pressure cylinder, is designed with a diameter twice the size and thus carries two gripper bridges 12. On the circumference of the drum 1, the two gripper bridges 12 are arranged symmetrically distributed (offset by 180 °). Each gripper bridge 12 consists of a gripper shaft, grippers and gripper bar 2 which can be adjusted in approximately radial direction. The gripper bar 2 carries support blocks for each gripper for the individual gripper bar.

Die Trommel 1 ist mit beiden Trommelzapfen drehbar in jeweils einer Lagerung eines Seitengestelles 11 aufgenommen. Jeder Greiferaufschlagleiste 2 ist eine Positioniereinrichtung 3 zugeordnet, die abhängig von der Bedruckstoffstärke das Hoch- oder Tiefstellen der Greiferaufschlagleiste 2 bewirkt. Die Positioniereinrichtung 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 Schubkeils. Jedes an der Positionierstange 4 angeordnete keilförmige Element 5 wirkt dabei als Antriebsglied, jedes keilförmige Element der Greiferaufschlagleiste 2 wirkt als Abtriebsglied. Die Greiferaufschlagleiste 2 ist federbelastet gegen die Positioniereinrichtung 3 abgestützt. An einem freien Ende jeder Positioniereinrichtung 3 ist eine Betätigungseinrichtung 7, im vorliegenden Beispiel ein Pneumatikzylinder, am Trommelkörper 1 angeordnet. Die Betätigungseinrichtung 7 ist mit der Positionierstange 4 gekoppelt und ist über ein Leitungssystem 8 mit einem am Trommelzapfen angeordneten Drehübertrager 9 verbunden. Der Drehübertrager 9 ist mit eine Energieversorgung 10 verbunden, die jede Betätigungseinrichtung 7 separat steuert. Bei Verwendung von Pneumatikzylindern erfolgt die gesteuerte Druckluftzufuhr über einen Ventilblock. Jede Positioniereinrichtung 3 ist in ihrem axialen Hub durch justierbare Anschläge 6 begrenzt. Dadurch läßt sich durch die Positioniereinrichtung 3 jede Greiferaufschlagleiste 2 in zwei Stufen verstellbar betreiben. Die erste Stufe (Hochstellen der Greiferaufschlagleiste 2) ist für Papier geeignet. Die zweite Stufe (Tiefstellen der Greiferaufschlagleiste 2) ist für Karton geeignet.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 movable 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 impact bar 2 each form a sliding joint in the form of a push wedge. Each wedge-shaped element 5 arranged on the positioning rod 4 acts as a drive member, each wedge-shaped element of the gripper bar 2 acts as an output member. The gripper bar 2 is spring-loaded against the positioning device 3. An actuating device 7, in the present example a pneumatic cylinder, is arranged on the drum body 1 at a free end of each positioning device 3. The actuating device 7 is coupled to the positioning rod 4 and is connected via a line system 8 to a rotary transducer 9 arranged on the drum journal. The rotary transformer 9 is connected to a power supply 10, which controls each actuating device 7 separately. When using pneumatic cylinders, the controlled compressed air supply takes place via a valve block. Each positioning device 3 is limited in its axial stroke by adjustable stops 6. As a result, each gripper bar 2 can be operated in two stages by the positioning device 3. The first stage (raising the gripper bar 2) is suitable for paper. The second stage (lowering the gripper bar 2) is suitable for cardboard.

Die Wirkungsweise ist wie folgt:
Die Trommel 1 übernimmt einen bedruckten Bogen von einem Druckzylinder eines vorgeordneten Druckwerkes und übergibt den Bogen an den Druckzylinder des nachgeordneten Druckwerkes. Soll ein Bedruckstoff mit veränderter Dicke (Stärke) verarbeitet werden, ist es erforderlich die Greiferaufschlagleiste 2 höher oder tiefer einzustellen. Die Energieversorgung 10 wird manuell oder automatisch, z.B. von einem Leitstand aus aktiviert. Jede Betätigungseinrichtung 7, hier der Pneumatikzylinder, wird mit Druckluft einzeln in Folge an der betreffenden Greiferbrücke 12 angesteuert. Dies bewirkt, daß der Kolben des Pneumatikzylinders die gekoppelte Positionierstange 4 axial bis zum Anschlag bewegt (erste Stufe). Die axiale Bewegung der Positionierstange 4 bewirkt die radiale Verstellung der Greiferaufschlagleiste 2 innerhalb von zwei Stufen. Die umgekehrte Ansteuerung der Betätigungseinrichtung 7, im vorliegenden Fall ist dies ein doppeltwirkender Pneumatikzylinder, bewegt den Kolben und damit die Positioniereinrichtung 3 in entgegengesetzte Richtung. Dies bewirkt wiederum die Verstellung der Greiferaufschlagleiste 2 gegen den entsprechenden Anschlag in die zweite Stufe. Es hat sich in der Druckpraxis die Verstellung in zwei Stufen als ausreichend herausgestellt. So ist z.B. ein Abstand der Oberkanten der Greiferaufschlagleisten einer Trommel 1 zum benachbarten Druckzylinder bei Papier von ca. 0,2mm und bei Karton von ca. 0,7mm günstig.The mode of action is as follows:
The drum 1 accepts a printed sheet from a printing cylinder of an upstream printing unit and transfers the sheet to the printing cylinder of the downstream printing unit. If a substrate with a changed thickness (thickness) is to be processed, it is necessary to set the gripper bar 2 higher or lower. The energy supply 10 is activated manually or automatically, for example from a control center. Each actuating device 7, here the pneumatic cylinder, is controlled individually with compressed air in succession on the gripper bridge 12 in question. This causes the piston of the pneumatic cylinder to move the coupled positioning rod 4 axially up to the stop (first stage). The axial movement of the positioning rod 4 brings about the radial adjustment of the gripper bar 2 within two stages. The reverse control of the actuator 7, in In the present case, this is a double-acting pneumatic cylinder, moves the piston and thus the positioning device 3 in the opposite direction. This in turn causes the adjustment of the gripper bar 2 against the corresponding stop in the second stage. In printing practice, the adjustment in two stages has proven to be sufficient. For example, a distance between the upper edges of the gripper bars of a drum 1 and the adjacent printing cylinder is favorable for paper of approximately 0.2 mm and for cardboard of approximately 0.7 mm.

BezugszeichenaufstellungList of reference symbols

11
bogenführende Trommelbow-guiding drum
22nd
GreiferaufschlagleisteGripper impact bar
33rd
PositioniereinrichtungPositioning device
44th
PositionierstangePositioning rod
55
keilförmiges Elementwedge-shaped element
66
justierbarer Anschlagadjustable stop
77
BetätigungseinrichtungActuator
88th
LeitungssystemPipe system
99
DrehübertragerRotary transformer
1010th
Energieversorgungpower supply
1111
SeitengestellSide frame
1212th
GreiferbrückeGrab bridge

Claims (7)

Bogenführende Trommel für Druckmaschinen unter Verwendung von jeweils aus Greiferwelle, Greifern und einstellbaren Greiferaufschlagleisten gebildeten und am Trommelumfang gleichmäßig verteilt angeordneten Greiferbrücken,
dadurch gekennzeichnet,
daß zum Hoch- und Tiefstellen jeder Greiferaufschlagleiste (2) eine an die Greiferaufschlagleiste (2) einwirkende Positioniereinrichtung (3) zugeordnet ist, die mit einer an der Trommel angeordneten Betätigungseinrichtung (7) gekoppelt ist, die separat über einen Drehübertrager (9) durch eine gesteuerte Energieversorgung (10) betätigbar ist.Sheet-guiding drum for printing presses using gripper bridges, each formed from the gripper shaft, grippers and adjustable gripper slats, and evenly distributed on the drum circumference,
characterized by
that for raising and lowering each gripper bar (2) is assigned a positioning device (3) acting on the gripper bar (2), which is coupled to an actuating device (7) arranged on the drum, which is separated via a rotary transducer (9) by a controlled energy supply (10) can be actuated. Bogenführende Trommel nach Anspruch 1,
dadurch gekennzeichnet,
daß der Hub der Betätigungseinrichtung (7) und/oder der Postioniereinrichtung (3) durch justierbare Anschläge (6) einstellbar ist.Sheet guiding drum according to claim 1,
characterized by
that the stroke of the actuating device (7) and / or the positioning device (3) can be adjusted by adjustable stops (6). 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 bis 3,
dadurch gekennzeichnet,
daß bei zweifachgroßen Trommeln (1) zwei, einzeln mittels Positioniereinrichtung (3) auf die entsprechende Greiferaufschlagleiste (2) wirkende Betätigungseinrichtungen (7) angeordnet sind, die mittels separaten Leitungen (8) über den Drehübertrager (9) mit der Energieversorgung (10) gekoppelt sind.Sheet guiding drum according to claims 1 to 3,
characterized by
that in double-sized drums (1) two actuators (7), which act individually on the corresponding gripper bar (2) by means of a positioning device (3), are coupled to the power supply (10) by means of separate lines (8) via the rotary transformer (9) are. Bogenführende Trommel nach Anspruch 1 bis 3,
dadurch gekennzeichnet,
daß bei dreifachgroßen Trommeln (1) drei, einzeln mittels Positioniereinrichtungen (3) auf die entsprechenden Greiferaufschlagleisten (2) wirkende Betätigungseinrichtungen (7) angeordnet sind, die mittels separaten Leitungen (8) über den Drehübertrager (9) mit der Energieversorgung (10) gekoppelt sind.Sheet guiding drum according to claims 1 to 3,
characterized by
that in triple-sized drums (1) three actuating devices (7) are arranged which act individually on the corresponding gripper bar (2) by means of positioning devices (3) and which are coupled to the power supply (10) by means of separate lines (8) via the rotary transformer (9) are. Bogenführende Trommel nach Anspruch 1 bis 3,
dadurch gekennzeichnet,
daß bei vierfachgroßen Trommeln (1) vier, einzeln mittels Positioniereinrichtungen auf die entsprechenden Greiferaufschlagleisten (2) wirkende Betätigungseinrichtungen (7) angeordnet sind, die mittels separaten Leitungen (8) über den Drehübertrager (9) mit der Energieversorgung (10) gekoppelt sind.Sheet guiding drum according to claims 1 to 3,
characterized by
that four-sized drums (1) have four actuating devices (7) which act individually on the corresponding gripper bar (2) by means of positioning devices and which are coupled to the power supply (10) by means of separate lines (8) via the rotary transformer (9). Bogenführende Trommel nach Anspruch 1,
dadurch gekennzeichnet,
daß die Betätigungseinrichtung (7) 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 (7) is formed from a pneumatically or hydraulically actuated working cylinder or an electric drive.
EP95112721A 1994-09-23 1995-08-11 Sheet transfer cylinder for a printing press Expired - Lifetime EP0703074B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4434000A DE4434000C2 (en) 1994-09-23 1994-09-23 Sheet guiding drum for rotary printing machines
DE4434000 1994-09-23

Publications (3)

Publication Number Publication Date
EP0703074A2 true EP0703074A2 (en) 1996-03-27
EP0703074A3 EP0703074A3 (en) 1997-01-22
EP0703074B1 EP0703074B1 (en) 1998-06-10

Family

ID=6529002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112721A Expired - Lifetime EP0703074B1 (en) 1994-09-23 1995-08-11 Sheet transfer cylinder for a printing press

Country Status (5)

Country Link
US (1) US5609105A (en)
EP (1) EP0703074B1 (en)
JP (1) JP2921657B2 (en)
AT (1) ATE167113T1 (en)
DE (2) DE4434000C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0835754A3 (en) * 1996-10-12 1998-12-16 MAN Roland Druckmaschinen AG Decentral individual adjustment of gripper supports in sheet feeding cylinders of rotary printing presses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535621A1 (en) * 1985-10-05 1987-04-09 Heidelberger Druckmasch Ag BOW TRANSFER DRUM
DD248319A1 (en) * 1986-04-21 1987-08-05 Polygraph Leipzig SUCTION CONTROLS IN ARC CYLINDERS
DE3721900A1 (en) * 1987-07-02 1989-01-19 Heidelberger Druckmasch Ag REMOTE-CONTROLLED ADJUSTMENTS FOR THE ELASTIC DEFORMING OF A REGISTER RAIL
DE4004352C1 (en) * 1990-02-13 1991-06-06 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4200406C2 (en) * 1992-01-10 1996-10-10 Heidelberger Druckmasch Ag Gripper device on sheet-fed rotary printing machines
DE4221929C2 (en) * 1992-07-03 1997-11-20 Heidelberger Druckmasch Ag Gripper control for sheet grippers on a sheet-guiding cylinder or the like in a printing press
DE4308595A1 (en) * 1993-03-18 1994-09-22 Heidelberger Druckmasch Ag Method and device for reducing sheet trailing on the rubber-covered cylinder of an offset printing machine
DE4337578A1 (en) * 1993-11-04 1995-05-11 Roland Man Druckmasch Sheet guiding drum for printing machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0835754A3 (en) * 1996-10-12 1998-12-16 MAN Roland Druckmaschinen AG Decentral individual adjustment of gripper supports in sheet feeding cylinders of rotary printing presses

Also Published As

Publication number Publication date
JP2921657B2 (en) 1999-07-19
DE4434000C2 (en) 1998-02-26
JPH08108522A (en) 1996-04-30
EP0703074B1 (en) 1998-06-10
DE4434000A1 (en) 1996-03-28
EP0703074A3 (en) 1997-01-22
US5609105A (en) 1997-03-11
DE59502478D1 (en) 1998-07-16
ATE167113T1 (en) 1998-06-15

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