EP0243721B1 - Rotary web offset printing machine provided with a printing unit with a flying printing plate exchange - Google Patents

Rotary web offset printing machine provided with a printing unit with a flying printing plate exchange Download PDF

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Publication number
EP0243721B1
EP0243721B1 EP87104924A EP87104924A EP0243721B1 EP 0243721 B1 EP0243721 B1 EP 0243721B1 EP 87104924 A EP87104924 A EP 87104924A EP 87104924 A EP87104924 A EP 87104924A EP 0243721 B1 EP0243721 B1 EP 0243721B1
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EP
European Patent Office
Prior art keywords
cylinder
shaft
gear wheel
rubber cylinder
rubber
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.)
Expired - Lifetime
Application number
EP87104924A
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German (de)
French (fr)
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EP0243721A2 (en
EP0243721A3 (en
Inventor
Klaus Theilacker
Johann Meitinger
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Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication date
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Publication of EP0243721A2 publication Critical patent/EP0243721A2/en
Publication of EP0243721A3 publication Critical patent/EP0243721A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/0008—Driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/10—Rotary lithographic machines for offset printing using one impression cylinder co-operating with several transfer cylinders for printing on sheets or webs, e.g. satellite-printing units

Definitions

  • the invention relates to a web-fed rotary offset printing machine with a printing unit for flying plate changes, in which one plate cylinder / blanket cylinder pair can be stopped for the plate change and the other can be turned on a common rotating impression cylinder, with the impression cylinder as the paper guide roller for the intermediate between the printing and reverse printing operation the track guided by the blanket cylinders can be used and gear wheels are positioned on the axis of the impression cylinder, which selectively connect the main drive to one of the two rubber cylinder drive wheels via a first or second clutch.
  • Figures 1 and 2 show a printing unit consisting of five cylinders in which a print carrier web 1 optionally on both sides, i.e. can be provided with a perfect and reverse print (Fig.1) or from one side with a double face print (Fig.2), as indicated. If the print carrier web 1 is only provided with a face print, the printing unit shown can work in the so-called "flying plate change", in which, as is known, a pair of blanket cylinders / plate cylinders can be stopped for each plate change, while the other pair of blanket cylinders / plate cylinders can be used to apply a face print is used.
  • the printing unit comprises two rubber cylinders 2, 3, against which one of the plate cylinders 4, 5 can be adjusted.
  • the print carrier web 1 is provided with a face and an impression, the printing between the two rubber cylinders 2, 3 and the impression cylinder 6, if desired, acting as a paper guide roller.
  • the impression cylinder 6 can be placed on the upper rubber cylinder 2 or can be turned off slightly. 2, double printing is applied to one side of the print carrier web 1, the common impression cylinder being set against both the blanket cylinder 2 and the blanket cylinder 3, and the blanket cylinders 2, 3 must be spaced apart.
  • the cylinders 2 to 6 shown each have pits 7 to 11, each of which must have a specific position with respect to adjacent cylinders in the different operating modes. If the operating mode according to FIG. 1 is used in perfecting, the pit 8 of the blanket cylinder 3 must face the pit 7 of the blanket cylinder 2. When changing to production according to FIG. 2, the lower rubber cylinder 3 must be rotated so that its pit 8 faces the pit 11 of the impression cylinder 6.
  • Figures 3 and 4 show the cylinders 2 to 6, on the respective shafts or stub shafts 13 to 17 corresponding gears are positioned.
  • the main drive from a gearwheel 18 arrives at a gearwheel 19 which is arranged in a rotationally fixed manner on the shaft 17 of the impression cylinder 6.
  • Another gearwheel 20 is positioned on the same shaft 17 and can optionally be connected to the shaft 17 with the aid of a coupling 21.
  • a gear 22 meshes with the gear 20, which is arranged on the shaft 13 of the upper rubber cylinder 2, and a gear 23 meshes with the gear 22 on the shaft 15 of the upper plate cylinder 4.
  • the common counter-pressure cylinder 6 can thus and the upper pair of rubber cylinders / plate cylinders 2, 4 are driven, while the lower pair of cylinders 3, 5 can be stopped for a plate change when the cylinders are turned off.
  • a further gear wheel 24 is arranged, which can optionally be connected to the shaft 17 of the counter-pressure cylinder 6 by actuating a clutch 25.
  • the gear 24 meshes with a preferably double-wide gear 26 on the shaft 14 of the rubber cylinder 3 in the exemplary embodiment.
  • a gear 27 meshes with the double-wide gear 26, which is arranged on the shaft 16 of the lower plate cylinder 5. If the clutch 25 is activated instead of the clutch 21, the lower pair of blanket cylinders / plate cylinders 3, 5 can be driven together with the impression cylinder 6, while the upper one when the clutch 21 is released Rubber cylinder / plate cylinder pair 2, 4 can be stopped for a plate change.
  • a further gearwheel 28 is positioned on the shaft of a rubber cylinder, for example on the shaft 13 of the upper rubber cylinder 2, which gear wheel can optionally be coupled to the shaft 13 of the rubber cylinder 2 with the aid of a third clutch.
  • the gear 28 always meshes directly or indirectly with the gear 26 with which the gear 24 also meshes.
  • the gear 26 is therefore preferably double width.
  • the printing unit according to the invention is to operate in the perfecting mode, in which the print carrier web 1 according to FIG. 1 is passed between the two rubber cylinders 2, 3, the impression cylinder 6 serving only as a paper guide roller, then the third clutch 29 and in the exemplary embodiment the Clutch 21 are activated while the clutch 25 is released. As a result, the drive comes from the gearwheels 18, 19, 20, 22, 28 to the double-width gearwheel 26 and the gearwheels 27 and 23. Thus, all cylinders 2 to 6 are driven, but reversing the direction of rotation for the lower one in the exemplary embodiment in accordance with the invention Cylinder pair 3, 5 was reached.
  • the gears used can always remain in engagement in all operating modes. This means that no significant profile shift is required. It is understood that using the principle underlying the invention, the drive for the double Fine pressure and for the plate change can also be varied, with corresponding, in individual cases desired arrangements of the clutches and gears on other sides of the cylinders 2 to 6 also being possible.
  • the gears 24, 26, 28 can mesh directly with one another, as in the exemplary embodiment. However, it is also possible, particularly in the case of correspondingly large machines, to arrange further gears or pairs of gears between them, so that the gears are indirectly meshed with one another.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung betrifft eine Rollenrotations-Offsetdruckmaschine mit einem Druckwerk für fliegenden Plattenwechsel, in dem ein Plattenzylinder-/Gummizylinderpaar für den Plattenwechsel stillgesetzt und das andere an einen gemeinsamen rotierenden Gegendruckzylinder angestellt werden kann, wobei beim Schöndruck-/Widerdruckbetrieb der Gegendruckzylinder als Papierleitwalze für die zwischen den Gummituchzylindern geführte Bahn verwendbar ist und auf der Achse des Gegendruckzylinders Zahnräder positioniert sind, die über eine erste oder zweite Kupplung den Hauptantrieb wahlweise mit einem der beiden Gummizylinderantriebsräder verbinden.The invention relates to a web-fed rotary offset printing machine with a printing unit for flying plate changes, in which one plate cylinder / blanket cylinder pair can be stopped for the plate change and the other can be turned on a common rotating impression cylinder, with the impression cylinder as the paper guide roller for the intermediate between the printing and reverse printing operation the track guided by the blanket cylinders can be used and gear wheels are positioned on the axis of the impression cylinder, which selectively connect the main drive to one of the two rubber cylinder drive wheels via a first or second clutch.

Die ältere, nicht vorveröffentlichte Patentanmeldung EP-A- 0 196 019 ist Stand d. Technik nach Artikel 54(3) EPÜ und beschreibt ein Druckwerk der vorgenannten Art. Bei diesem Druckwerk ist der Antriebsräderzug an einer Seite der Maschine angeordnet, für die einzelnen Betriebsarten bedarf es der Verschiebung von Zahnrädern. Die Zahnräder weisen zumindest teilweise eine Profilverschiebung auf.The older, not prepublished patent application EP-A-0 196 019 is d. Technology according to Article 54 (3) EPC and describes a printing unit of the aforementioned type. In this printing unit, the drive wheel train is arranged on one side of the machine; for the individual operating modes, gearwheels have to be shifted. The gears at least partially have a profile shift.

Aufgabe der Erfindung ist es, eine Rollenrotations-Offsetdruckmaschine der eingangs bezeichneten Gattung mit einem Antrieb aufzuzeigen, bei dem die Zahnräder keine wesentliche Profilverschiebung aufweisen und stets miteinander kämmen, so daß eine Verschiebung derselben nicht erforderlich ist. Diese Aufgabe wird durch die Anwendung der Merkmale des kennzeichnenden Tiels des Patentanspruches 1 gelöst. Weiterbildungen ergeben sich aus den Unteransprüchen und aus der Beschreibung in Verbindung mit den Zeichnungen. In diesen zeigen jeweils schematisch:

Fig.1
das erfindungsgemäße Druckwerk im Schön-/Widerdruckbetrieb,
Fig.2
das erfindungsgemäße Druckwerk im Zweifarben-Schöndruckbetrieb,
Fig.3
eine Seitenansicht des Druckwerkes gemäß Fig.1 und 2 und
Fig.4
eine perspektivische Darstellung des Druckwerkes gemäß Fig.1 bis 3.
The object of the invention is to demonstrate a web-fed rotary offset printing press of the type described at the beginning with a drive in which the gearwheels do not have any significant profile shift and always comb with each other so that a displacement of the same is not necessary. This object is achieved by applying the features of the characterizing part of claim 1. Further developments result from the subclaims and from the description in connection with the drawings. Each of these shows schematically:
Fig. 1
the printing unit according to the invention in perfecting mode,
Fig. 2
the printing unit according to the invention in two-color straight printing operation,
Fig. 3
a side view of the printing unit according to Fig.1 and 2 and
Fig. 4
a perspective view of the printing unit according to Figure 1 to 3.

Die Figuren 1 und 2 lassen ein Druckwerk, bestehend aus fünf Zylindern erkennen, in dem eine Druckträgerbahn 1 wahlweise beidseitig, d.h. mit einem Schön- und Widerdruck (Fig.1) oder von einer Seite mit einem zweifachen Schöndruck (Fig.2) versehen werden kann, wie angedeutet. Wird die Druckträgerbahn 1 lediglich mit einem Schöndruck versehen, so kann das dargestellte Druckwerk im sogenannten "fliegenden Plattenwechsel" arbeiten, bei dem bekanntlich ein Gummizylinder-/Plattenzylinderpaar jeweils für den Plattenwechsel stillgesetzt werden kann, während das andere Gummizylinder-/ Plattenzylinderpaar zum Aufbringen eines Schöndruckes verwendet wird.Figures 1 and 2 show a printing unit consisting of five cylinders in which a print carrier web 1 optionally on both sides, i.e. can be provided with a perfect and reverse print (Fig.1) or from one side with a double face print (Fig.2), as indicated. If the print carrier web 1 is only provided with a face print, the printing unit shown can work in the so-called "flying plate change", in which, as is known, a pair of blanket cylinders / plate cylinders can be stopped for each plate change, while the other pair of blanket cylinders / plate cylinders can be used to apply a face print is used.

Das Druckwerk umfaßt zwei Gummizylinder 2, 3, an die jeweils einer der Plattenzylinder 4, 5 anstellbar ist. Bei der Betriebsweise gemäß Fig.1 wird die Druckträgerbahn 1 mit einem Schön- und einem Widerdruck versehen, wobei der Aufdruck zwischen den beiden Gummizylindern 2, 3 erfolgt und der Gegendruckzylinder 6, wenn gewünscht, als Papierleitwalze fungiert. Der Gegendruckzylinder 6 kann dabei an den oberen Gummizylinder 2 angestellt oder geringfügig abgestellt sein. Bei der Betriebsweise gemäß Fig. 2 wird auf einer Seite der Druckträgerbahn 1 ein zweifacher schöndruck aufgebracht, wobei der gemeinsame Gegendruckzylinder sowohl an den Gummizylinder 2 als auch an den Gummizylinder 3 angestellt ist und die Gummizylinder 2, 3 müssen voneinander beasbstandet sein.The printing unit comprises two rubber cylinders 2, 3, against which one of the plate cylinders 4, 5 can be adjusted. In the mode of operation according to FIG. 1, the print carrier web 1 is provided with a face and an impression, the printing between the two rubber cylinders 2, 3 and the impression cylinder 6, if desired, acting as a paper guide roller. The impression cylinder 6 can be placed on the upper rubber cylinder 2 or can be turned off slightly. 2, double printing is applied to one side of the print carrier web 1, the common impression cylinder being set against both the blanket cylinder 2 and the blanket cylinder 3, and the blanket cylinders 2, 3 must be spaced apart.

Die dargestellten Zylinder 2 bis 6 weisen jeweils Gruben 7 bis 11 auf, die jeweils bei den verschiedenen Betriebsarten eine bestimmte Position zu benachbarten Zylindern aufweisen müssen. Wenn bie der Betriebsart gemäß Fig. 1 im Schön-/Widerdruck gearbeitet wird, muß die Grube 8 des Gummizylinders 3 der Grube 7 des Gummizylinders 2 gegenüberstehen. Bei Wechsel auf Produktion gemäß Fig. 2 muß der untere Gummizylinder 3 so verdreht werden, daß seine Grube 8 der Grube 11 des Gegendruckzylinders 6 gegenübersteht.The cylinders 2 to 6 shown each have pits 7 to 11, each of which must have a specific position with respect to adjacent cylinders in the different operating modes. If the operating mode according to FIG. 1 is used in perfecting, the pit 8 of the blanket cylinder 3 must face the pit 7 of the blanket cylinder 2. When changing to production according to FIG. 2, the lower rubber cylinder 3 must be rotated so that its pit 8 faces the pit 11 of the impression cylinder 6.

In vorteilhafter Weise geschieht dies bei dem erfindungsgemäßen Druckwerk durch die Verwendung von drei Kupplungen, die in bestimmten Positionen die Antriebe miteinander kuppeln, also Kupplungen mit Festpunktschaltung.This is advantageously done in the printing unit according to the invention by using three clutches that couple the drives to one another in certain positions, that is to say clutches with a fixed point circuit.

Die Figuren 3 und 4 zeigen die Zylinder 2 bis 6, auf deren jeweiligen Wellen bzw. Wellenstummeln 13 bis 17 entsprechende Zahnräder positioniert sind. Der Hauptantrieb von einem Zahnrad 18 gelangt auf ein Zahnrad 19, das drehfest auf der Welle 17 des Gegendruckzylinders 6 angeordnet ist. Auf der gleichen Welle 17 ist ein weiteres Zahnrad 20 positioniert, das wahlweise mit Hilfe einer Kupplung 21 mit der Welle 17 verbindbar ist. Mit dem Zahnrad 20 kämmt ein Zahnrad 22, das auf der Welle 13 des oberen Gummizylinders 2 angeordnet ist und mit dem Zahnrad 22 kämmt wiederum ein Zahnrad 23 auf der Welle 15 des oberen Plattenzylinders 4. Beim Betätigen der Kupplung 21 können somit der gemeinsame Gegendruckzylinder 6 und das obere Gummizylinger-/Plattenzylinderpaar 2, 4 angetrieben werden, während das untere Zylinderpaar 3, 5 für einen Plattenwechsel bei abgestellten Zylindern stillgesetzt werden kann.Figures 3 and 4 show the cylinders 2 to 6, on the respective shafts or stub shafts 13 to 17 corresponding gears are positioned. The main drive from a gearwheel 18 arrives at a gearwheel 19 which is arranged in a rotationally fixed manner on the shaft 17 of the impression cylinder 6. Another gearwheel 20 is positioned on the same shaft 17 and can optionally be connected to the shaft 17 with the aid of a coupling 21. A gear 22 meshes with the gear 20, which is arranged on the shaft 13 of the upper rubber cylinder 2, and a gear 23 meshes with the gear 22 on the shaft 15 of the upper plate cylinder 4. When the clutch 21 is actuated, the common counter-pressure cylinder 6 can thus and the upper pair of rubber cylinders / plate cylinders 2, 4 are driven, while the lower pair of cylinders 3, 5 can be stopped for a plate change when the cylinders are turned off.

Im Ausführungsbeispiel auf der anderen Seite des Druckzylinders 6 ist ein weiteres Zahnrad 24 angeordnet, das durch Betätigen einer Kupplung 25 wahlweise mit der Welle 17 des Gegendruckzylinders 6 verbunden werden kann. Das Zahnrad 24 kämmt mit einem im Ausführungsbeispiel vorzugsweise doppeltbreiten Zahnrad 26 auf der Welle 14 des Gummizylinders 3. Außerdem kämmt mit dem doppeltbreiten Zahnrad 26 ein Zahnrad 27, das auf der Welle 16 des unteren Plattenzylinders 5 angeordnet ist. Wird anstelle der Kupplung 21 die Kupplung 25 aktiviert, so kann gemeinsam mit dem Gegendruckzylinder 6 das untere Gummizylinder-/Plattenzylinderpaar 3, 5 angetrieben werden, während bei gelöster Kupplung 21 das obere Gummizylinder-/Plattenzylinderpaar 2, 4 für einen Plattenwechsel stillgesetzt werden kann. Es bietet sich auch die Möglichkeit, durch Betätgigen der beiden Kupplungen 21, 25 bei entsprechender Anstellung beider Zylinder 2, 3 an den Gegendruckzylinder 6, sowohl das obere als auch das untere Gummituch-/Plattenzylinderpaar 2, 4 bzw. 3, 5 anzutreiben, so daß bei einer Führung der Druckträgerbahn 1 gemäß Fig.2 um den Gegendruckzylinder ein Zweifacher Schöndruck möglich ist.In the exemplary embodiment on the other side of the pressure cylinder 6, a further gear wheel 24 is arranged, which can optionally be connected to the shaft 17 of the counter-pressure cylinder 6 by actuating a clutch 25. The gear 24 meshes with a preferably double-wide gear 26 on the shaft 14 of the rubber cylinder 3 in the exemplary embodiment. In addition, a gear 27 meshes with the double-wide gear 26, which is arranged on the shaft 16 of the lower plate cylinder 5. If the clutch 25 is activated instead of the clutch 21, the lower pair of blanket cylinders / plate cylinders 3, 5 can be driven together with the impression cylinder 6, while the upper one when the clutch 21 is released Rubber cylinder / plate cylinder pair 2, 4 can be stopped for a plate change. It is also possible to drive both the upper and the lower pair of blankets / plate cylinders 2, 4 and 3, 5 by actuating the two clutches 21, 25 with appropriate adjustment of both cylinders 2, 3 to the impression cylinder 6, so that when guiding the print carrier web 1 according to FIG. 2 around the impression cylinder, a double fine print is possible.

In erfindungsgemäßer Weise wird auf der Welle eines Gummizylinders, beispielsweise auf der Welle 13 des oberen Gummizylinders 2, ein weiteres Zahnrad 28 positioniert, das mit Hilfe einer dritten Kupplung wahlweise an die Welle 13 des Gummizylinders 2 ankuppelbar ist. Das Zahnrad 28 kämmt stets direkt oder indirekt mit dem Zahnrad 26, mit dem auch das Zahnrad 24 kämmt. Das Zahnrad 26 ist deshalb vorzugsweise doppeltbreit.In the manner according to the invention, a further gearwheel 28 is positioned on the shaft of a rubber cylinder, for example on the shaft 13 of the upper rubber cylinder 2, which gear wheel can optionally be coupled to the shaft 13 of the rubber cylinder 2 with the aid of a third clutch. The gear 28 always meshes directly or indirectly with the gear 26 with which the gear 24 also meshes. The gear 26 is therefore preferably double width.

Soll das erfindungsgemäße Druckwerk im Schön- und Widerdruckbetrieb arbeiten, bei dem die Druckträgerbahn 1 gemäß Fig.1 zwischen den beiden Gummizylindern 2, 3 hindurchgeführt wird, wobei der Gegendruckzylinder 6 lediglich als Papierführungswalze dienen kann, so müssen die dritte Kupplung 29 und im Ausführungsbeispiel die Kupplung 21 aktiviert werden, während die Kupplung 25 gelöst ist. Dadurch gelangt der Antrieb von den Zahnrädern 18, 19, 20, 22, 28 kommend auf das doppeltbreite Zahnrad 26 und die Zahnräder 27 und 23. Somit werden sämtliche Zylinder 2 bis 6 angetrieben, wobei jedoch in erfindungsgemäßer Weise eine Drehrichtungsumkehr für das im Ausführungsbeispiel untere Zylinderpaar 3, 5 erreicht wurde.If the printing unit according to the invention is to operate in the perfecting mode, in which the print carrier web 1 according to FIG. 1 is passed between the two rubber cylinders 2, 3, the impression cylinder 6 serving only as a paper guide roller, then the third clutch 29 and in the exemplary embodiment the Clutch 21 are activated while the clutch 25 is released. As a result, the drive comes from the gearwheels 18, 19, 20, 22, 28 to the double-width gearwheel 26 and the gearwheels 27 and 23. Thus, all cylinders 2 to 6 are driven, but reversing the direction of rotation for the lower one in the exemplary embodiment in accordance with the invention Cylinder pair 3, 5 was reached.

Im zweifachen Schöndruckbetrieb sowie im einfachen Schöndruckbetrieb, d.h. beim fliegenden Plattenwechsel, sind die Kupplungen 21 und 25 bzw. 21 oder 25 aktiviert, während beiden Betriebsarten die Kupplung 29 nicht geschaltet ist. Das Zahnrad 28 wird durch das doppeltbreite Zahnrad 26 mitgenommen und dreht frei auf der entgegengesetzt rotierenden Welle 13, falls das untere Zylinderpaar 3, 5 aktiviert ist.In double faceplate operation as well as in single faceplate operation, i.e. when flying plate change, the clutches 21 and 25 or 21 or 25 are activated, while the clutch 29 is not engaged in either mode. The gear 28 is carried along by the double-wide gear 26 and rotates freely on the counter-rotating shaft 13 if the lower pair of cylinders 3, 5 is activated.

Wie die Figuren 3 und 4 zeigen, können die verwendeten Zahnräder bei allen Betriebsarten stets im Eingriff verbleiben. Somit ist keine wesentliche Profilverschiebung erforderlich. Es versteht sich, daß unter Anwendung des der Erfindung zugrunde liegenden Prinzips der Antrieb für den zweifachen Schöndruck und für den Plattenwechsel auch variiert werden kann, wobei entsprechende, im Einzelfall gewünschte Anordngen der Kupplungen und Zahnräder auf anderen Seiten der Zylinder 2 bis 6 ebenso möglich sind.As FIGS. 3 and 4 show, the gears used can always remain in engagement in all operating modes. This means that no significant profile shift is required. It is understood that using the principle underlying the invention, the drive for the double Fine pressure and for the plate change can also be varied, with corresponding, in individual cases desired arrangements of the clutches and gears on other sides of the cylinders 2 to 6 also being possible.

Die Zahnräder 24, 26, 28 können direkt, wie im Ausführungsbeispiel miteinander kämmen. Es ist jedoch auch besonders bei entsprechend großen Maschinen möglich, zwischen diesen weitere Zahnräder bzw. Zahnräderpaare anzuordnen, so daß die Zahnräder indirekt miteinander in Zahneingriff stehen.The gears 24, 26, 28 can mesh directly with one another, as in the exemplary embodiment. However, it is also possible, particularly in the case of correspondingly large machines, to arrange further gears or pairs of gears between them, so that the gears are indirectly meshed with one another.

Claims (2)

  1. Web-fed rotary offset printing machine having a printing unit for flying plate exchange, in which one plate cylinder/rubber cylinder pair (4, 2; 5, 3) is brought to a standstill for plate exchange and the other can be set against a common rotating impression cylinder (6), wherein in the recto/verso print mode the impression cylinder (6) can be used as a paper guide roller for the web guided between the rubber blanket cylinders (2, 3), and gear wheels (20, 24) are positioned on the shaft (17) of the impression cylinder and join the main drive (18, 19) optionally to one of the two rubber cylinder drive wheels (22, 26) by means of a first or second coupling (21, 25), in which a gear wheel (26) arranged on the shaft (14) of a first rubber cylinder (3) is in toothed engagement directly or indirectly with a gear wheel (28) arranged on the shaft (13) of the other second rubber cylinder (2) and with a gear wheel (24) arranged on the shaft (17) of the impression cylinder (6), and the gear wheel (28) arranged on the shaft (13) of the second rubber cylinder (2) can be joined by means of a third coupling (29) to the shaft (13) of this second rubber cylinder (2) in such a way that in the recto and verso print mode (1/1) one (21) of the two first or second couplings (21, 25) is activated and applies the main drive (18, 19) applied to the impression cylinder (6) by means of a gear wheel (22) to a rubber cylinder (2), from which, when the third coupling (29) is activated, the drive reaches the other rubber cylinder (3) by means of the gear wheel (28) arranged on the shaft (13) of the second rubber cylinder (2), and that the three couplings (21, 25, 29) are equipped with fixed point circuits.
  2. Web-fed rotary offset printing machine according to claim 1, characterised in that the two couplings (21, 25) are arranged on different sides of the impression cylinder (6) and in that on one side of the impression cylinder (6) the gear wheel (24) co-operating with one coupling (e.g. 25) is in continuous engagement with a double-width gear wheel (26) on the shaft (14) of one rubber cylinder (3).
EP87104924A 1986-04-25 1987-04-02 Rotary web offset printing machine provided with a printing unit with a flying printing plate exchange Expired - Lifetime EP0243721B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3614029 1986-04-25
DE3614029A DE3614029C1 (en) 1986-04-25 1986-04-25 Web-fed rotary offset printing machine with a printing unit for flying plate changes

Publications (3)

Publication Number Publication Date
EP0243721A2 EP0243721A2 (en) 1987-11-04
EP0243721A3 EP0243721A3 (en) 1989-04-26
EP0243721B1 true EP0243721B1 (en) 1991-05-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104924A Expired - Lifetime EP0243721B1 (en) 1986-04-25 1987-04-02 Rotary web offset printing machine provided with a printing unit with a flying printing plate exchange

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US (1) US4753168A (en)
EP (1) EP0243721B1 (en)
JP (1) JP2541549B2 (en)
CA (1) CA1304259C (en)
DE (1) DE3614029C1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3702071C1 (en) * 1987-01-24 1988-07-14 Roland Man Druckmasch Suitable printing unit for changing plate
DE3712702A1 (en) * 1987-04-14 1988-11-03 Roland Man Druckmasch REGISTER DEVICE
US6644184B1 (en) * 1995-02-09 2003-11-11 Man Roland Druckmaschinen Ag Offset printing machine
US5752443A (en) * 1995-06-16 1998-05-19 Heidelberger Druckmaschinen Ag Mechanism for excluding critical speeds from normal operating ranges
DE19603663A1 (en) * 1996-02-02 1997-08-07 Roland Man Druckmasch Printing unit for the flying printing plate change
US5794529A (en) * 1996-05-02 1998-08-18 Heidelberger Druckmaschinen Ag Compliant drive for printing presses
DE19629605C2 (en) * 1996-07-23 2000-02-03 Koenig & Bauer Ag Drive a printing unit
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Also Published As

Publication number Publication date
CA1304259C (en) 1992-06-30
JP2541549B2 (en) 1996-10-09
JPS62257846A (en) 1987-11-10
EP0243721A2 (en) 1987-11-04
US4753168A (en) 1988-06-28
DE3614029C1 (en) 1987-04-02
EP0243721A3 (en) 1989-04-26

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