EP1122063A2 - Sheet transfer cylinder for a rotary printing machine - Google Patents

Sheet transfer cylinder for a rotary printing machine Download PDF

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Publication number
EP1122063A2
EP1122063A2 EP01101216A EP01101216A EP1122063A2 EP 1122063 A2 EP1122063 A2 EP 1122063A2 EP 01101216 A EP01101216 A EP 01101216A EP 01101216 A EP01101216 A EP 01101216A EP 1122063 A2 EP1122063 A2 EP 1122063A2
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EP
European Patent Office
Prior art keywords
drum body
sheet
body according
guiding
outer sides
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
EP01101216A
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German (de)
French (fr)
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EP1122063B1 (en
EP1122063A3 (en
Inventor
Holger Gläsner
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Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1122063A2 publication Critical patent/EP1122063A2/en
Publication of EP1122063A3 publication Critical patent/EP1122063A3/en
Application granted granted Critical
Publication of EP1122063B1 publication Critical patent/EP1122063B1/en
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    • 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-leading drum body for a sheet-fed rotary printing machine according to the preamble of Claim 1.
  • the ones to be printed are Sheet by means of sheet-guiding drum bodies, also transfer drums or called transfer cylinder / transfer drums, between transported to the printing units.
  • sheet-guiding drum bodies also transfer drums or called transfer cylinder / transfer drums, between transported to the printing units.
  • transfer drums also transfer drums or called transfer cylinder / transfer drums
  • To smear the bow Preventing on the printed side are a variety of Designs of such drum bodies are known.
  • such a drum body is constructed as a cylinder on whose outer surface is the sheet with the unprinted or printed side is in contact.
  • Drum bodies are the as Well-known drums in printing presses of the series R 700 and R 900 from MAN Roland Druckmaschinen AG.
  • This Drum bodies are essentially constructed as boxes, the outside of the box facing the arch either flat or concave and / or convexly curved are.
  • These outer surfaces of the Transferter can be closed or be made air-permeable by means of openings.
  • drum bodies are additionally with blowing and / or Sheet guiding devices which can be acted upon by suction air, in particular assigned in the lower area, which additionally increases the risk lubrication of the printed side of the sheet is minimized becomes.
  • Another drum is known from DE 36 02 084 C2, which has guiding surfaces which are formed essentially as secants between at least two gripper bridges within the drum circumference.
  • the guiding surfaces are intended to serve as air scoops, which generate an air jam in printing operation, which keeps the respective sheet with the printed surface away from the guiding surfaces and thus should ensure lubrication-free and guillotine-free sheet guidance.
  • the guiding surfaces can also be realized with a sheet guiding device for sheet guiding arranged outside of the outer surface of the drum.
  • the guide surfaces on the drum which can also be formed by guide plates, serve to guide the trailing edge of the sheet when the sheet is transferred to the subsequent printing cylinder.
  • the invention has for its object a sheet leading To create drum body of the type mentioned, the avoids the disadvantages mentioned, especially at high Bending rigidity allows mass reduction and the Drum body itself one acting on the bow, from Generates guiding surfaces, avoids air congestion.
  • a first advantage of the drum body according to the invention is justified that sheet materials with different Basis weights and different stiffnesses, such as paper, cardboard, foil, smear-free in the sheet-fed rotary printing press is processable.
  • the drum body Sheet holding means in the form of gripper bridges, whereby the gripper bars preferably according to the sheet material thickness carry height-adjustable gripper slats.
  • the drum body with an approximately prismatic shape has two Diametric gripper bridges arranged symmetrically on the circumference within the drum circumference. as well as openings on the outside on so that when the drum body rotates a Air flow through the breakthroughs can be achieved. That in The gripper clasp fixes sheet material essentially guided by centrifugal forces. Through the breakthroughs overpressure and underpressure zones can be avoided. Kick it no wave phenomena on the bow, which is disadvantageous affect a smooth sheet run.
  • the breakthroughs are dimensioned such that none caused by guide surfaces Air jams affect the sheet material.
  • Another advantage is that the breakthroughs to achieve an air flow reduces the mass of the drum body surrender themselves.
  • Another advantage is that the arrangement the breakthroughs - based on one through the gripper bridge running axis of symmetry - outside this axis of symmetry are arranged mirror-inverted. So that's it Imbalance can be reduced and the center of gravity of the drum body is arranged in the drum axis, so that a uniform Bearing load is realizable.
  • a sheet-guiding drum body 1 is in an offset rotary printing machine a printing cylinder of the previous one Subordinate printing unit and the drum body 1 itself a printing cylinder downstream of another printing unit.
  • the drum body 1 is based on a single size Plate cylinder, made with a double-sized diameter and thus carries two gripper bridges 10 (only schematically indicated).
  • the double-sized drum body 1 has one prismatic shape formed inside the drum circumference, which ends by two parallel faces 2, two parallel surfaces 6, each with a guide 5 for the gripper pad to accommodate the gripper bars 10 (with gripper pad) and two parallel outer sides 3 is formed.
  • a bearing journal 4 is arranged on each end face 2.
  • the drum body 1 is rotatable with the bearing pin 4 in one storage of a side frame added.
  • the gripper bridges 10 are symmetrical arranged diametrically distributed (180 ° offset).
  • each Gripper bridge 10 consists of a gripper shaft, grippers, and a gripper pad, which is arranged on the guide 5 is.
  • the gripper pad preferably carries for each gripper assigned support blocks for the single gripper support.
  • the outer sides 3 are with cassette-shaped depressions 7 in Functional connection, which refers to a through the surfaces 6 axis of symmetry for receiving the gripper bridges 10 11 arranged at right angles to the axis of symmetry 11 are.
  • the cassette-shaped depressions 7 are preferably with rectangular cross section and are dimensioned such that relatively narrow webs 12 the outer sides 3 form. Furthermore, the cassette-shaped depressions 7 arranged outside the axis of symmetry 11, of ambient air Breakthroughs 8 through which the axis of symmetry flows 11 are arranged in mirror image offset.
  • the cassette-shaped Wells 7 between the gripper bridges 10 preferably in Levels I and II are arranged one above the other. Alternatively, they are Wells 7 can also be arranged one above the other in other levels. In each level I or II (or in other levels) is in each case only one breakthrough 8 arranged.
  • each opening 8 has a longer one (the axis of symmetry 11 cutting) depression 7 and a shorter depression 7 assigned.
  • the openings 8 are mirror images in a further development staggered directly on the outside 3, so that only a depression 7 (intersecting the axis of symmetry 11) a breakthrough 8 is assigned.
  • Fig. 2 shows a drum body 1 with two between the gripper bridges 10 arranged levels I, II.
  • level I is the opening 8 outside the axis of symmetry 11 arranged in the right part of the drum body 1. Accordingly is the longer recess 7 in the left and right Part (intersecting the axis of symmetry 11) of the drum body 1 arranged, however, the shorter recess 7 is exclusive arranged in the right part of the drum body 1.
  • the opening 8 is outside the axis of symmetry 11 in the left part of the drum body 1 arranged.
  • the longer recess 7 is in the left and right part (intersecting the axis of symmetry 11) of the Drum body 1 arranged and the shorter recess 7 is arranged only in the left part of the drum body 1.
  • the outer sides 3 (including the webs 12) with end faces 2 between the gripper bridges 10 are formed straight on the drum body 1.
  • 3 to 5 show further developments.
  • the outer sides 3 (with webs 12) are arranged concave to the drum body 1 inwards between the two gripper bridges 10.
  • the outer sides 3 (with webs 12) are arranged so as to be curved convexly with respect to the drum body 1 between the two gripper bridges 10, the course of curvature being formed by several straight lines.
  • the outer sides 3 (with webs 12) are also curved convexly with respect to the drum body 1 to the outside between the two gripper bridges 10, the course of curvature being formed in each case by a continuous curve.
  • the mode of operation is as follows: the drum body 1 is supplied with a bow from a preceding cylinder, the drum body 1 takes over the bow with its gripper bridge 10. The sheet fixed in the gripper closure is now guided from the drum body 1 into the sheet outlet and the sheet emergence and transferred to the sheet holding systems of the downstream printing cylinder. Due to the rotary movement of the drum body 1, the ambient air flows through the cassette-shaped depressions 7 and through the openings 8 and past the gripper bridges 10. Depending on the machine speed, the sheet is pressed against the sheet guiding devices 9 by centrifugal moments and guided to the transfer area. The sheet guiding devices 9 can be acted upon by suction air and / or blown air. The arch shows a smooth arch travel, without wave formation in the rear area. There is therefore no air jam on the unprinted or printed side of the sheet.

Abstract

A transfer cylinder for a printing press has a rotating structure (1) with pivot supports (4) at each end and with grips (10) on the diametric opposite sides to grip the leading edges of the printed material and guide it to the next process. The structure has a cellular construction with cavities (7) and air flow apertures (8) to generate an airflow through the centrifugal force. This moves the printed material inside the outer guides and provides a quiet transfer.

Description

Die Erfindung betrifft einen bogenführenden Trommelkörper für eine Bogenrotationsdruckmaschine nach dem Oberbegriff von Anspruch 1.The invention relates to a sheet-leading drum body for a sheet-fed rotary printing machine according to the preamble of Claim 1.

[Stand der Technik][State of the art]

Bei Bogenrotationsdruckmaschinen werden die zu bedruckenden Bogen mittels bogenführender Trommelkörper, auch Umführtrommeln bzw. Transferzylinder/Transfertrommeln genannt, zwischen den Druckwerken transportiert. Um ein Abschmieren der Bogen an der bedruckten Seite zu verhindern, sind eine Vielzahl von Bauformen derartiger Trommelkörper bekannt. Beispielsweise ist ein derartiger Trommelkörper als Zylinder aufgebaut, auf dessen Mantelfläche der Bogen mit der unbedruckten oder bedruckten Seite flächig in Kontakt ist.In sheet-fed rotary printing presses, the ones to be printed are Sheet by means of sheet-guiding drum bodies, also transfer drums or called transfer cylinder / transfer drums, between transported to the printing units. To smear the bow Preventing on the printed side are a variety of Designs of such drum bodies are known. For example such a drum body is constructed as a cylinder on whose outer surface is the sheet with the unprinted or printed side is in contact.

Weitere Bauformen für bogenförmige Trommelkörper sind die als Transferter bekannten Trommeln in Druckmaschinen der Baureihen R 700 und R 900 der MAN Roland Druckmaschinen AG. Diese Trommelkörper sind im wesentlichen als Kasten aufgebaut, wobei die den Bogen zugewandten Außenseiten des Kastens entweder eben bzw. konkav und/oder konvex gekrümmt ausgebildet sind. Diese Außenflächen der Transferter können geschlossen oder mittels Durchbrüchen luftdurchlässig gestaltet sein.Other designs for curved drum bodies are the as Well-known drums in printing presses of the series R 700 and R 900 from MAN Roland Druckmaschinen AG. This Drum bodies are essentially constructed as boxes, the outside of the box facing the arch either flat or concave and / or convexly curved are. These outer surfaces of the Transferter can be closed or be made air-permeable by means of openings.

Eine Ausbildung der Transferter mit prismatischer Form innerhalb des Trommelumfanges und mit an den Seitenflächen angeordneten kommunizierenden Durchbrüchen ist aus der DE 44 31 114 A1 bekannt. Ein derartiger Trommelkörper weist wenigstens zwei Greiferbrücken auf, die gleichmäßig am Umfang der Umführtrommel verteilt angeordnet sind. Die Außenflächen dieser prismatisch aufgebauten bogenführenden Trommelkörper sind durch Ebenen gebildet, wobei die zu den transportierenden Bogen gewandten Außenseiten auch gekrümmt ausgebildet sein können. An education of the Transferter with prismatic form within of the drum circumference and arranged on the side surfaces communicating breakthroughs is from the DE 44 31 114 A1 known. Such a drum body has at least two grapple bridges that are even on the circumference the transfer drum are distributed. The outside surfaces this prismatic arched drum body are formed by levels, with those to be transported Arched outer sides also curved could be.

Diesen Trommelkörpern sind zusätzlich mit Blas- und/oder Saugluft beaufschlagbare Bogenleitvorrichtungen, insbesondere im unteren Bereich zugeordnet, wodurch zusätzlich die Gefahr des Abschmierens der bedruckten Seite des Bogens minimiert wird.These drum bodies are additionally with blowing and / or Sheet guiding devices which can be acted upon by suction air, in particular assigned in the lower area, which additionally increases the risk lubrication of the printed side of the sheet is minimized becomes.

Aus DE 36 02 084 C2 ist eine weitere Trommel bekannt, die zwischen mindestens zwei Greiferbrücken innerhalb des Trommelumfanges im wesentlichen als Sekante ausgebildete Leitflächen besitzt. Die Leitflächen sollen als Luftschaufeln dienen, welche im Druckbetrieb einen Luftstau erzeugen, der den jeweiligen Bogen mit der bedruckten Fläche von den Leitflächen fernhält und somit eine schmier- und doublierfreie Bogenführung gewährleisten soll.
Die Leitflächen können auch mit einer außerhalb zur Mantelfläche der Trommel angeordneten Bogenleitvorrichtung für die Bogenführung realisiert werden. Ebenso dienen die Leitflächen an der Trommel, die auch durch Leitbleche gebildet sein können zur Führung der Bogenhinterkante bei Übergabe des Bogens an den nachfolgenden Druckzylinder.Another drum is known from DE 36 02 084 C2, which has guiding surfaces which are formed essentially as secants between at least two gripper bridges within the drum circumference. The guiding surfaces are intended to serve as air scoops, which generate an air jam in printing operation, which keeps the respective sheet with the printed surface away from the guiding surfaces and thus should ensure lubrication-free and guillotine-free sheet guidance.
The guiding surfaces can also be realized with a sheet guiding device for sheet guiding arranged outside of the outer surface of the drum. Likewise, the guide surfaces on the drum, which can also be formed by guide plates, serve to guide the trailing edge of the sheet when the sheet is transferred to the subsequent printing cylinder.

Von Nachteil ist hierbei, dass durch die Leitflächen ein Luftstau in Form von Überdruck und Unterdruckzonen entsteht, welcher einen ruhigen Bogenlauf beeinträchtigen können.The disadvantage here is that through the guide surfaces Air build-up in the form of overpressure and negative pressure zones which can impair smooth sheet travel.

[Aufgabe der Erfindung]OBJECT OF THE INVENTION

Der Erfindung liegt die Aufgabe zugrunde, einen bogenführenden Trommelkörper der eingangs genannten Art zu schaffen, der die genannten Nachteile vermeidet, der insbesondere bei hoher Biegesteifigkeit eine Massereduzierung gestattet und der Trommelkörper selbst einen auf den Bogen wirkenden, von Leitflächen erzeugten, Luftstau vermeidet. The invention has for its object a sheet leading To create drum body of the type mentioned, the avoids the disadvantages mentioned, especially at high Bending rigidity allows mass reduction and the Drum body itself one acting on the bow, from Generates guiding surfaces, avoids air congestion.

Gelöst wird die Aufgabe durch die Ausbildungsmerkmale von Anspruch 1. Weiterbildungen ergeben sich aus den Unteransprüchen.The task is solved by the training features of Claim 1. Further training results from the subclaims.

Ein erster Vorteil des erfindungsgemäßen Trommelkörpers ist darin begründet, dass damit Bogenmaterialien mit unterschiedlichen Flächengewichten und unterschiedlichen Steifigkeiten, wie Papier, Karton, Folie, abschmierfrei in der Bogenrotationsdruckmaschine verarbeitbar ist. Hierzu weist der Trommelkörper Bogenhaltemittel in Form von Greiferbrücken auf, wobei die Greiferbrücken bevorzugt entsprechend der Bogenmaterialdicke höhenverstellbare Greiferaufschlagleisten tragen.A first advantage of the drum body according to the invention is justified that sheet materials with different Basis weights and different stiffnesses, such as paper, cardboard, foil, smear-free in the sheet-fed rotary printing press is processable. For this purpose, the drum body Sheet holding means in the form of gripper bridges, whereby the gripper bars preferably according to the sheet material thickness carry height-adjustable gripper slats.

Der Trommelkörper mit annähernd prismatischer Form weist zwei symmetrisch am Umfang angeordnete diametrale Greiferbrücken innerhalb des Trommelumfanges. sowie Durchbrüche an den Außenseiten auf, so dass bei Rotation des Trommelkörpers eine Luftströmung durch die Durchbrüche erzielbar ist. Das im Greiferschluss fixierte Bogenmaterial wird dabei im wesentlichen durch Zentrifugalkräfte geführt. Durch die Durchbrüche sind Überdruck- und Unterdruckzonen vermeidbar. Es treten keine Wellenerscheinungen am Bogen auf, die sich nachteilig auf einen ruhigen Bogenlauf auswirken. Die Durchbrüche sind derart dimensioniert, dass kein von Leitflächen bewirkter Luftstau auf das Bogenmaterial wirkt.The drum body with an approximately prismatic shape has two Diametric gripper bridges arranged symmetrically on the circumference within the drum circumference. as well as openings on the outside on so that when the drum body rotates a Air flow through the breakthroughs can be achieved. That in The gripper clasp fixes sheet material essentially guided by centrifugal forces. Through the breakthroughs overpressure and underpressure zones can be avoided. Kick it no wave phenomena on the bow, which is disadvantageous affect a smooth sheet run. The breakthroughs are dimensioned such that none caused by guide surfaces Air jams affect the sheet material.

Von Vorteil ist weiterhin, dass die Durchbrüche zur Erzielung einer Luftströmung eine Massereduzierung des Trommelkörpers selbst ergeben. Von Vorteil ist ebenso, dass die Anordnung der Durchbrüche - bezogen auf eine durch die Greiferbrücke verlaufende Symmetrieachse - außerhalb dieser Symmetrieachse spiegelbildlich versetzt angeordnet sind. Damit ist die Unwucht reduzierbar und der Schwerpunkt des Trommelkörpers ist in der Trommelachse angeordnet, so dass eine gleichförmige Lagerbelastung realisierbar ist.Another advantage is that the breakthroughs to achieve an air flow reduces the mass of the drum body surrender themselves. Another advantage is that the arrangement the breakthroughs - based on one through the gripper bridge running axis of symmetry - outside this axis of symmetry are arranged mirror-inverted. So that's it Imbalance can be reduced and the center of gravity of the drum body is arranged in the drum axis, so that a uniform Bearing load is realizable.

Durch die Struktur des Trommelkörpers ist bei Rotation eine Verringerung der Durchbiegung erzielbar, was insbesondere zu einer verbesserten Passerhaltigkeit führt.Due to the structure of the drum body there is a rotation Reduction in deflection achievable, which in particular leads to leads to an improved registration.

[Beispiele][Examples]

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

Fig. 1
einen Trommelkörper für zwei Greiferbrükken (3D-Darstellung),
Fig. 2
einen Schnitt A-A von Fig. 1,
Fig. 3
eine erste Weiterbildung von Figur 2,
Fig. 4
eine zweite Weiterbildung von Fig. 2,
Fig. 5
eine dritte Weiterbildung von Fig. 2.
The invention will be explained in more detail using an exemplary embodiment. The following schematically show:
Fig. 1
a drum body for two gripper bars (3D illustration),
Fig. 2
2 shows a section AA from FIG. 1,
Fig. 3
a first development of Figure 2,
Fig. 4
a second development of Fig. 2,
Fig. 5
a third development of Fig. 2nd

Ein bogenführender Trommelkörper 1 ist in einer Offsetrotationsdruckmaschine einem Druckzylinder des vorhergehenden Druckwerkes nachgeordnet und dem Trommelkörper 1 selbst ist ein Druckzylinder eines weiteren Druckwerkes nachgeordnet. Der Trommelkörper 1 ist, bezogen auf einen einfachgroßen Plattenzylinder, mit einem zweifachgroßen Durchmesser ausgeführt und trägt somit zwei Greiferbrücken 10 (nur schematisch angedeutet). Der doppeltgroße Trommelkörper 1 besitzt eine innerhalb des Trommelumfanges gebildete prismatische Form, welche endseitig durch zwei parallele Stirnseiten 2, zwei parallele Flächen 6 mit je einer Führung 5 für die Greiferauflage zur Aufnahme der Greiferbrücken 10 (mit Greiferauflage)und zwei parallele Außenseiten 3 gebildet ist. A sheet-guiding drum body 1 is in an offset rotary printing machine a printing cylinder of the previous one Subordinate printing unit and the drum body 1 itself a printing cylinder downstream of another printing unit. The drum body 1 is based on a single size Plate cylinder, made with a double-sized diameter and thus carries two gripper bridges 10 (only schematically indicated). The double-sized drum body 1 has one prismatic shape formed inside the drum circumference, which ends by two parallel faces 2, two parallel surfaces 6, each with a guide 5 for the gripper pad to accommodate the gripper bars 10 (with gripper pad) and two parallel outer sides 3 is formed.

An den Stirnseiten 2 sind je ein Lagerzapfen 4 angeordnet. Der Trommelkörper 1 ist mit den Lagerzapfen 4 drehbar in jeweils einer Lagerung eines Seitengestelles aufgenommen. Am Umfang des Trommelkörpers 1 sind die Greiferbrücken 10 symmetrisch verteilt diametral angeordnet (180° versetzt). Jede Greiferbrücke 10 besteht aus einer Greiferwelle, Greifern, sowie einer Greiferauflage, welche an der Führung 5 angeordnet ist. Die Greiferauflage trägt bevorzugt für jeden Greifer zugeordnete Auflageklötzchen für die Einzelgreiferauflage.A bearing journal 4 is arranged on each end face 2. The drum body 1 is rotatable with the bearing pin 4 in one storage of a side frame added. At the The circumference of the drum body 1, the gripper bridges 10 are symmetrical arranged diametrically distributed (180 ° offset). each Gripper bridge 10 consists of a gripper shaft, grippers, and a gripper pad, which is arranged on the guide 5 is. The gripper pad preferably carries for each gripper assigned support blocks for the single gripper support.

Die Außenseiten 3 sind mit kassettenförmige Vertiefungen 7 in Funktionsverbindung, welche bezogen auf eine durch die Flächen 6 zur Aufnahme der Greiferbrücken 10 verlaufende Symmetrieachse 11 rechtwinkelig zur Symmetrieachse 11 angeordnet sind. Die kassettenförmigen Vertiefungen 7 sind bevorzugt mit rechteckigen Querschnitt ausgebildet und sind derart dimensioniert, dass relativ schmale Stege 12 die Außenseiten 3 bilden. Ferner weisen die kassettenförmigen Vertiefungen 7 außerhalb der Symmetrieachse 11 angeordnete, von Umgebungsluft durchströmbare Durchbrüche 8 auf, welche zur Symmetrieachse 11 spiegelbildlich versetzt angeordnet sind.The outer sides 3 are with cassette-shaped depressions 7 in Functional connection, which refers to a through the surfaces 6 axis of symmetry for receiving the gripper bridges 10 11 arranged at right angles to the axis of symmetry 11 are. The cassette-shaped depressions 7 are preferably with rectangular cross section and are dimensioned such that relatively narrow webs 12 the outer sides 3 form. Furthermore, the cassette-shaped depressions 7 arranged outside the axis of symmetry 11, of ambient air Breakthroughs 8 through which the axis of symmetry flows 11 are arranged in mirror image offset.

Innerhalb des Trommelkörpers 1 sind die kassettenförmigen Vertiefungen 7 zwischen den Greiferbrücken 10 bevorzugt in Ebenen I und II übereinander angeordnet. Alternativ sind die Vertiefungen 7 auch in weiteren Ebenen übereinander anordbar. In jeder Ebene I oder II (oder in weiteren Ebenen) ist jeweils nur ein Durchbruch 8 angeordnet.Within the drum body 1 are the cassette-shaped Wells 7 between the gripper bridges 10 preferably in Levels I and II are arranged one above the other. Alternatively, they are Wells 7 can also be arranged one above the other in other levels. In each level I or II (or in other levels) is in each case only one breakthrough 8 arranged.

Weiterhin sind die Vertiefungen 7 (in jeder Ebene I oder II) zur Symmetrieachse 11 spiegelbildlich versetzt angeordnet, so dass jedem Durchbruch 8 eine längere (die Symmetrieachse 11 schneidende) Vertiefung 7 und eine kürzere Vertiefung 7 zugeordnet ist. Furthermore, the recesses 7 (in each level I or II) to the axis of symmetry 11 offset mirror image, so that each opening 8 has a longer one (the axis of symmetry 11 cutting) depression 7 and a shorter depression 7 assigned.

Die Durchbrüche 8 sind in einer Weiterbildung spiegelbildlich versetzt direkt an den Außenseiten 3 anordbar, so dass lediglich eine (die Symmetrieachse 11 schneidende) Vertiefung 7 einem Durchbruch 8 zugeordnet ist.The openings 8 are mirror images in a further development staggered directly on the outside 3, so that only a depression 7 (intersecting the axis of symmetry 11) a breakthrough 8 is assigned.

Beispielsweise zeigt Fig. 2 einen Trommelkörper 1 mit zwei zwischen den Greiferbrücken 10 angeordneten Ebenen I, II. In der Ebene I ist der Durchbruch 8 außerhalb der Symmetrieachse 11 im rechten Teil des Trommelkörpers 1 angeordnet. Dementsprechend ist die längere Vertiefung 7 im linken und rechten Teil (die Symmetrieachse 11 schneidend) des Trommelkörpers 1 angeordnet, hingegen ist die kürzere Vertiefung 7 ausschließlich im rechten Teil des Trommelkörpers 1 angeordnet.For example, Fig. 2 shows a drum body 1 with two between the gripper bridges 10 arranged levels I, II. In level I is the opening 8 outside the axis of symmetry 11 arranged in the right part of the drum body 1. Accordingly is the longer recess 7 in the left and right Part (intersecting the axis of symmetry 11) of the drum body 1 arranged, however, the shorter recess 7 is exclusive arranged in the right part of the drum body 1.

In der darüberliegenden Ebene II ist der Durchbruch 8 außerhalb der Symmetrieachse 11 im linken Teil des Trommelkörpers 1 angeordnet. Die längere Vertiefung 7 ist dabei im linken und rechten Teil (die Symmetrieachse 11 schneidend) des Trommelkörpers 1 angeordnet und die kürzere Vertiefung 7 ist ausschließlich im linken Teil des Trommelkörpers 1 angeordnet.In the level II above, the opening 8 is outside the axis of symmetry 11 in the left part of the drum body 1 arranged. The longer recess 7 is in the left and right part (intersecting the axis of symmetry 11) of the Drum body 1 arranged and the shorter recess 7 is arranged only in the left part of the drum body 1.

In den Fig. 1 und 2 sind die Außenseiten 3 (einschließlich der Stege 12) mit Stirnseiten 2 zwischen den Greiferbrücken 10 gerade am Trommelkörper 1 ausgebildet. Die Fig. 3 bis 5 zeigen Weiterbildungen dazu auf.
In Fig. 3 sind die Außenseiten 3 (mit Stegen 12) konkav zum Trommelkörper 1 nach innen zwischen den beiden Greiferbrücken 10 gekrümmt angeordnet.
In Fig. 4 sind die Außenseiten 3 (mit Stegen 12) konvex zum Trommelkörper 1 nach außen zwischen den beiden Greiferbrücken 10 gekrümmt angeordnet, wobei der Krümmungsverlauf durch mehrere Geraden gebildet ist.
In Fig. 5 sind die Außenseiten 3 (mit Stegen 12) ebenso konvex zum Trommelkörper 1 nach außen zwischen den beiden Greiferbrücken 10 gekrümmt angeordnet, wobei der Krümmungsverlauf durch je eine durchgehende Kurve gebildet ist.1 and 2, the outer sides 3 (including the webs 12) with end faces 2 between the gripper bridges 10 are formed straight on the drum body 1. 3 to 5 show further developments.
In Fig. 3, the outer sides 3 (with webs 12) are arranged concave to the drum body 1 inwards between the two gripper bridges 10.
In FIG. 4, the outer sides 3 (with webs 12) are arranged so as to be curved convexly with respect to the drum body 1 between the two gripper bridges 10, the course of curvature being formed by several straight lines.
5, the outer sides 3 (with webs 12) are also curved convexly with respect to the drum body 1 to the outside between the two gripper bridges 10, the course of curvature being formed in each case by a continuous curve.

Außerhalb des Trommelumfanges des Trommelkörpers 1 sind vorzugsweise in definierten Abständen Bogenleitvorrichtungen 9 angeordnet, an denen der Bogen bevorzugt mit der unbedruckten Seite geführt wird.Outside the drum circumference of the drum body 1 are preferably at defined intervals sheet guiding devices 9 arranged on which the sheet preferably with the unprinted Side is guided.

Die Wirkungsweise ist wie folgt: Dem Trommelkörper 1 wird von einem vorgeordneten Zylinder ein Bogen zugeführt, der Trommelkörper 1 übernimmt mit seiner Greiferbrücke 10 den Bogen. Der im Greiferschluss fixierte Bogen wird nun vom Trommelkörper 1 in den Bogenabgang und den Bogenaufgang geführt und an die Bogenhaltesysteme des nachgeordneten Druckzylinders übergeben.
Durch die Drehbewegung des Trommelkörpers 1 strömt die Umgebungsluft durch die kassettenförmigen Vertiefungen 7 sowie durch die Durchbrüche 8 und an den Greiferbrücken 10 vorbei. Der Bogen wird abhängig von der Maschinengeschwindigkeit durch Zentrifugalmomente gegen die Bogenleitvorrichtungen 9 gedrückt und an diesen bis zum Übergabebereich geführt. Die Bogenleitvorrichtungen 9 sind dabei mittels Saugluft und/oder Blasluft beaufschlagbar. Der Bogen zeigt dabei einen ruhigen Bogenlauf, ohne Wellenbildung des hinteren Bereiches. Es wird somit kein Luftstau auf die unbedruckte bzw. bedruckte Seite des Bogens. The mode of operation is as follows: the drum body 1 is supplied with a bow from a preceding cylinder, the drum body 1 takes over the bow with its gripper bridge 10. The sheet fixed in the gripper closure is now guided from the drum body 1 into the sheet outlet and the sheet emergence and transferred to the sheet holding systems of the downstream printing cylinder.
Due to the rotary movement of the drum body 1, the ambient air flows through the cassette-shaped depressions 7 and through the openings 8 and past the gripper bridges 10. Depending on the machine speed, the sheet is pressed against the sheet guiding devices 9 by centrifugal moments and guided to the transfer area. The sheet guiding devices 9 can be acted upon by suction air and / or blown air. The arch shows a smooth arch travel, without wave formation in the rear area. There is therefore no air jam on the unprinted or printed side of the sheet.

[Bezugszeichenliste][List of reference numerals]

11
TrommelkörperDrum body
22
StirnseiteFace
33
AußenseiteOutside
44
LagerzapfenBearing journal
55
Führung (für die Greiferauflage)Guide (for the gripper pad)
66
Flächearea
77
kassettenförmige Vertiefungcassette-shaped depression
88th
Durchbruchbreakthrough
99
BogenleitvorrichtungSheet guiding device
1010
GreiferbrückeGrab bridge
1111
SymmetrieachseAxis of symmetry
1212th
Stegweb
II.
Ebenelevel
IIII
Ebenelevel

Claims (9)

Bogenführender Trommelkörper für eine Rotationsdruckmaschine, der mittels an Stirnseiten angeordneten Trommelzapfen in Seitengestellen gelagert ist, zwei symmetrisch am Umfang angeordnete, diametral gegenüber liegende Greiferbrücken aufweist und eine innerhalb des Trommelumfanges gebildete prismatische Grundform mit Durchbrüchen aufweist, die bei Rotation von Umgebungsluft durchströmt werden,
dadurch gekennzeichnet,
dass eine Symmetrielinie (11) durch die Greiferbrücken (10) verläuft, dass rechtwinkelig zur Symmetrieachse (11) zu den Außenseiten (3) verlaufende kassettenförmige Vertiefungen (7) angeordnet sind, dass die kassettenförmigen Vertiefungen (7) Durchbrüche (8) aufweisen, die zur Symmetrieachse (11) spiegelbildlich versetzt angeordnet sind.Sheet-guiding drum body for a rotary printing press, which is mounted in side frames by means of drum pins arranged on the front sides, has two gripper bridges arranged symmetrically on the circumference, diametrically opposite one another and has a prismatic basic shape formed within the drum circumference with openings which are flowed through when ambient air rotates,
characterized,
that a line of symmetry (11) runs through the gripper bridges (10), that cassette-shaped depressions (7) extending at right angles to the axis of symmetry (11) to the outer sides (3) are arranged, that the cassette-shaped depressions (7) have openings (8) which are symmetrically offset to the axis of symmetry (11). Bogenführender Trommelkörper nach Anspruch 1,
dadurch gekennzeichnet,
dass die Vertiefungen (7) einen derartigen Querschnitt aufweisen, dass die Außenseiten (3) durch Stege (12) gebildet sind.Sheet-guiding drum body according to claim 1,
characterized,
that the depressions (7) have a cross section such that the outer sides (3) are formed by webs (12). Bogenführender Trommelkörper nach wenigstens Anspruch 1,
dadurch gekennzeichnet,
dass die Vertiefungen (7) zwischen den Greiferbrücken (10) in mehreren Ebenen (I,II) angeordnet sind und dass jeder Ebene (I oder II) ein Durchbruch (8) zugeordnet ist. Sheet-guiding drum body according to at least claim 1,
characterized,
that the recesses (7) between the gripper bridges (10) are arranged in several levels (I, II) and that each level (I or II) is assigned an opening (8). Bogenführender Trommelkörper nach wenigstens Anspruch 1 und 3,
dadurch gekennzeichnet,
dass in jeder Ebene (I,II) eine Vertiefung (7) die Symmetrieachse 11 schneidend angeordnet ist und die Durchbrüche (8) spiegelbildlich angeordnet sind.Sheet-guiding drum body according to at least claims 1 and 3,
characterized,
that in each plane (I, II) a recess (7) is arranged intersecting the axis of symmetry 11 and the openings (8) are arranged in mirror image. Bogenführender Trommelkörper nach wenigstens Anspruch 1 und Anspruch 4,
dadurch gekennzeichnet,
dass die Durchbrüche (8) direkt an den Außenseiten (3) angeordnet sind.Sheet-guiding drum body according to at least claim 1 and claim 4,
characterized,
that the openings (8) are arranged directly on the outer sides (3). Bogenführender Trommelkörper nach wenigstens Anspruch 1,
dadurch gekennzeichnet,
dass die zwischen Greiferbrücken (10) verlaufenden Außenseiten (3) gerade ausgebildet sind.Sheet-guiding drum body according to at least claim 1,
characterized,
that the outer sides (3) running between gripper bridges (10) are straight. Bogenführender Trommelkörper nach wenigstens Anspruch 1,
dadurch gekennzeichnet,
dass die zwischen Greiferbrücken (10) verlaufenden Außenseiten (3) konkav zum Trommelkörper (1) nach innen gekrümmt angeordnet sind.Sheet-guiding drum body according to at least claim 1,
characterized,
that the outer sides (3) running between gripper bridges (10) are arranged concavely to the drum body (1) and are curved inward. Bogenführender Trommelkörper nach wenigstens Anspruch 1,
dadurch gekennzeichnet,
dass die zwischen Greiferbrücken (10) verlaufenden Außenseiten (3) konvex zum Trommelkörper (1) nach außen gekrümmt angeordnet sind. Sheet-guiding drum body according to at least claim 1,
characterized,
that the outer sides (3) running between gripper bridges (10) are arranged so as to be convex to the outside of the drum body (1). Bogenführender Trommelkörper nach wenigstens Anspruch 1,
dadurch gekennzeichnet,
dass dem Trommelkörper (1) außerhalb des Trommelumfanges eine Bogenleitvorrichtung (9) angeordnet ist.Sheet-guiding drum body according to at least claim 1,
characterized,
that a sheet guiding device (9) is arranged on the drum body (1) outside the drum circumference.
EP01101216A 2000-02-04 2001-01-19 Sheet transfer cylinder for a rotary printing machine Expired - Lifetime EP1122063B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20001970U 2000-02-04
DE20001970U DE20001970U1 (en) 2000-02-04 2000-02-04 Sheet-guiding drum body for a sheet-fed rotary printing machine

Publications (3)

Publication Number Publication Date
EP1122063A2 true EP1122063A2 (en) 2001-08-08
EP1122063A3 EP1122063A3 (en) 2003-10-01
EP1122063B1 EP1122063B1 (en) 2008-12-17

Family

ID=7936838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01101216A Expired - Lifetime EP1122063B1 (en) 2000-02-04 2001-01-19 Sheet transfer cylinder for a rotary printing machine

Country Status (4)

Country Link
EP (1) EP1122063B1 (en)
JP (1) JP3416120B2 (en)
AT (1) ATE417732T1 (en)
DE (2) DE20001970U1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602084C2 (en) 1986-01-24 1989-12-28 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4431114A1 (en) 1994-09-01 1996-03-07 Roland Man Druckmasch Sheet-guiding drum body for a printing machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE544300C (en) * 1929-06-25 1932-02-17 Albert Schnellpressen Method and device for aligning the sheets in multicolor rotary printing presses
DE725705C (en) * 1941-01-25 1942-09-28 Willy Mailaender Rotary rubber printing machine for multi-colored printing of metal sheets
GB2268162A (en) * 1992-06-19 1994-01-05 Shinohara Machinery Co Ltd Sheet-feeding cylinder with grippers.
DE4442301C5 (en) * 1994-09-05 2006-12-14 Heidelberger Druckmaschinen Ag Sheet transfer drum

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602084C2 (en) 1986-01-24 1989-12-28 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4431114A1 (en) 1994-09-01 1996-03-07 Roland Man Druckmasch Sheet-guiding drum body for a printing machine

Also Published As

Publication number Publication date
DE20001970U1 (en) 2000-03-23
DE50114575D1 (en) 2009-01-29
JP2001247234A (en) 2001-09-11
EP1122063B1 (en) 2008-12-17
JP3416120B2 (en) 2003-06-16
ATE417732T1 (en) 2009-01-15
EP1122063A3 (en) 2003-10-01

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