EP0225567B1 - Sheet-turning device for rotary-printing presses with a line construction - Google Patents

Sheet-turning device for rotary-printing presses with a line construction Download PDF

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Publication number
EP0225567B1
EP0225567B1 EP86116613A EP86116613A EP0225567B1 EP 0225567 B1 EP0225567 B1 EP 0225567B1 EP 86116613 A EP86116613 A EP 86116613A EP 86116613 A EP86116613 A EP 86116613A EP 0225567 B1 EP0225567 B1 EP 0225567B1
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EP
European Patent Office
Prior art keywords
sheet
impression cylinder
turning device
covering
roller blind
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
EP86116613A
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German (de)
French (fr)
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EP0225567A3 (en
EP0225567A2 (en
Inventor
Josef Dipl.-Ing. Mathes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT86116613T priority Critical patent/ATE61016T1/en
Publication of EP0225567A2 publication Critical patent/EP0225567A2/en
Publication of EP0225567A3 publication Critical patent/EP0225567A3/en
Application granted granted Critical
Publication of EP0225567B1 publication Critical patent/EP0225567B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F21/00Devices for conveying sheets through printing apparatus or machines
    • B41F21/10Combinations of transfer drums and grippers
    • B41F21/106Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine
    • B41F21/108Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine with pneumatic means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/18Impression cylinders

Definitions

  • the invention relates to a sheet turning device for rotary printing presses in series construction according to the preamble of the first claim.
  • Sheet turning devices of this type are known from DE-PS 1 262 294 and DE-AS 1 786 371.
  • the object of the invention is to enable sheet registration of printing media of all thicknesses and lengths up to the highest printing speeds from the upstream printing cylinder in a sheet turning device of the type mentioned above by means of gripping devices.
  • the advantage of the invention is that the security of the register accuracy is increased because mechanical gripper transfers generally take place both in straight printing and in face and back printing.
  • a sheet offset rotary printing machine for optional face and back printing is shown, which works on the principle of the trailing edge application in a known manner.
  • the schematically illustrated two-color printing unit 21 has a double-sized transfer drum or reversing drum 2 between double-sized printing cylinders 1, 3, which are mounted in side stands 11 in a known manner.
  • the sheets 13 to be printed are also fed to the printing cylinder 1 in a known manner and removed from the printing cylinder 3 again.
  • the printing cylinders 1, 3 are each provided with two gripping devices 8, 9 and 23, 24, which are diametrically opposite one another and are used for the transport of the sheet 13 in a correspondingly controlled manner.
  • Printing cylinders 1, 3 and transfer drum or turning drum 2 are designed for the transport of two sheets 13 on the circumference.
  • the double-sized transfer drum or turning drum 2 has two pairs of gripping systems 4, 6 and 5, 7, which interact and can be pivoted relative to one another.
  • the gripping devices 4, 6 and 5, 7 lie diametrically opposite one another in pairs.
  • an adjustable covering 10 is provided on the printing cylinder 1 placed in front of the turning drum 2 in such a way that gripping of the bow end is made possible.
  • the printing cylinder 1 has a base body 20 which is several millimeters smaller and closed over the entire printing area and on which is covered 10 a roller shutter 10.1 rests with an overlying film covering 17, via which the printing cylinder 1 obtains its actual diameter or, according to FIGS. 9 and 10, several roller shutter strips 10.2 are housed in the printing cylinder 1 in the circumferential direction, the surfaces of which coincide with the printing cylinder surface and which are covered with a continuous cover plate 31, via which the printing cylinder 1 receives its actual diameter.
  • Suitable as film covering 17 via roller shutters 10.1 is e.g. a film made of fine steel strip, corresponding fabric or the like, which extends over the entire width of the printing cylinder 1 and is 0.2 to 1 mm thick, while the continuous cover plate 31 has a thickness of e.g. Can have 1 mm.
  • the printing cylinder 1 preferably has an outer diameter which is at least 3 mm smaller, so that the gripping devices 4 and 5 can grip the sheet 13 at the end of the sheet if the roller shutter 10.1 is to be used. (Fig. 7) As a result, variable free spaces 26 are created between the gripping devices 5, 8 and 4, 9 for detecting the trailing edge of the sheet, so that the front gripping devices 4 and 5 seen in the direction of rotation of the double-sized transfer drum or reversing drum 2 are used for each format setting can dive into the circumferential path of the double-large impression cylinder 1.
  • roller shutters 10.1 is understood to mean a covering 10 consisting of narrow strips 32 and / or chain links, wire mesh, a special rubber blanket or similar elastic composite 30 over the entire width, which has an almost closed outer surface on the outer diameter of the pressure cylinder, is radially rigid and can be wound up in the circumferential direction.
  • the narrow strips 32 are threaded onto several steel cords 33 and have an almost gap-free surface on the pressure cylinder 1 (FIGS. 6 and 8).
  • a special rubber blanket is e.g. a hard rubber blanket, which has a cover layer 53 with inserts 52 and a base layer 54 with notches such that the composite is radially rigid and can be wound onto the printing cylinder 1 in the circumferential direction (FIG. 11).
  • Wire mesh or similar elastic composites 30 of a different type must have comparable properties.
  • both roller shutters 10.1 and also the film coverings 17 and the cover plate 31 can be wound up via roller shutter strips 10.2, depending on the set sheet length, on winding shafts 16 and 18 mounted in the printing cylinder 1.
  • Roughened surfaces 55 secure the position of the roller shutter strips 10.2 on the take-up shafts 18.
  • the take-up shafts 16, 18 are received in end walls 15 of the base body 20.
  • An end member 12 of the roller shutter 10.1 or the cover plate 31 arranged over roller shutter strips 10.2 have a greater width at the end, are mounted on the end face on a pin 27 of the pressure cylinder 1 and can be adjusted and clamped from the outside by means 28, 29 (FIGS. 3 and 9 ).
  • a device 29 In order to be able to make a format setting, a device 29 must be released from its clamping position by means of axially arranged hexagon sockets of the same size and associated hexagon wrenches in order to be able to move the covering 10 on the base body 20 of the printing cylinder 1 in the circumferential direction.
  • the device 28 required for this consists of an adjusting shaft 34 which is integrated in the pin 27 of the pressure cylinder 1.
  • An adjusting pinion 35 is fastened on the adjusting shaft 34, which is in operative connection with a further adjusting pinion 43 via a gear wheel 36 mounted in the pressure cylinder 1 and which is attached to an adjusting shaft 41 mounted in the end walls 15 (FIGS. 3, 4, 9).
  • the suction device 22 is constructed in a manner known per se in the form of a rake Division of the roller shutter strips 10.2 in the base body 20 of the printing cylinder 1 in front and ends with the surface of the cover plate 31 with suction surfaces and suction bores, not shown, in one plane.
  • a suction air supply 40 is provided, from which the suction air is guided into the interior of the base body 20.
  • the suction air supply 40 is connected to the side parts 14 of the continuous cover plate 31 which can be rotated on the base body 20 of the pressure cylinder 1 in front and, as can be seen from FIG. 10, can slide circularly in an elongated hole 38 in the end walls 15 when the format is changed.
  • roller shutters 10.1 or roller shutter strips 10.2 are ground on the printing cylinder 1.
  • roller shutters 10.1 with foil coverings 17 or roller shutter strips 10.2 with cover plate 31 are preferably connected at the end of the covering 10 and the covering 10 is e.g. can also be tensioned by torsion springs on the winding shafts 16, 18. This always ensures a secure position of the covering 10 guided loosely on the base body 20 of the printing cylinder 1.
  • a scraper 37 removes deposits on the base body 20.
  • both one-sided printing of the sheet 13 with two colors and the turning of the sheet 13 are functionally related to the printing cylinder 1 in front and thus double-sided printing the arch 13 possible.
  • the second printing unit is then used as an impression printing unit.
  • the sheet 13 is transported in a known manner by transfer, for example, from the gripping devices 9 of the printing cylinder 1 to the gripping devices 6 of the transfer drum 2 and from there to the gripping devices 24 of the printing cylinder 3 and is therefore not described in more detail (see FIG 1).

Abstract

The invention relates to a sheet turning device for rotary presses of the in-line type with double-size impression cylinders associated with a single double-size transfer or turn-over drum. To enable the sheet end to be gripped by gripper devices, the impression cylinder preceding the turn-over drum is provided with an adjustable covering, preferably a roller blind with a foil covering thereabove, to give the impression cylinder its actual diameter.

Description

Die Erfindung betrifft eine Bogenwendevorrichtung für Rotationsdruckmaschinen in Reihenbauweise nach dem Oberbegriff des ersten Patentanspruchs.The invention relates to a sheet turning device for rotary printing presses in series construction according to the preamble of the first claim.

Bogenwendevorrichtungen dieser Gattung sind aus der DE-PS 1 262 294 und der DE-AS 1 786 371 bekannt.Sheet turning devices of this type are known from DE-PS 1 262 294 and DE-AS 1 786 371.

Bei diesen Bogenwendevorrichtungen bestehen erhebliche Probleme bei den heute üblichen Druckgeschwindigkeiten, speziell bei der Verarbeitung von Karton, aber auch bei der Verarbeitung von glatten, dünnen und gut auf dem vorgeordneten Druckzylinder haftenden Papieren, weil das Bogenende mittels Saugern unter der Wirkung von hohen Zugund/oder Kippkräften von der geschlossenen Oberfläche des Druckzylinders gestrafft abgenommen und registerhaltig weiter gegeben werden muß. Sauger sind aber wegen der begrenzten Haltekräfte unsicher und deshalb nur bedingt geeignet. Außerdem ist von Nachteil, daß ein erheblicher lufttechnischer Aufwand für die Sauger betrieben werden muß.With these sheet turning devices, there are considerable problems with the printing speeds customary today, especially when processing cardboard, but also when processing smooth, thin papers that adhere well to the upstream printing cylinder, because the sheet end is sucked under the effect of high pulling and / or Tilting forces tightened from the closed surface of the printing cylinder and must be passed on in register. Suction cups are unsafe because of the limited holding forces and are therefore only suitable to a limited extent. It is also disadvantageous that a considerable amount of ventilation is required for the suction devices.

Aufgabe der Erfindung ist es, bei einer Bogenwendevorrichtung eingangs genannter Gattung mittels Greifeinrichtungen eine registerhaltige Bogenübernahme von Druckträgern aller Stärken und Längen bis zu höchsten Druckgeschwindigkeiten vom vorgesetzten Druckzylinder zu ermöglichen.The object of the invention is to enable sheet registration of printing media of all thicknesses and lengths up to the highest printing speeds from the upstream printing cylinder in a sheet turning device of the type mentioned above by means of gripping devices.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des ersten Patentanspruchs. Weiterbildungen ergeben sich aus den Unteransprüchen, der Zeichnung und der Beschreibung.This object is achieved by the characterizing features of the first claim. Further developments result from the subclaims, the drawing and the description.

Der Vorteil der Erfindung besteht darin, daß die Sicherheit der Registerhaltigkeit erhöht wird, weil sowohl im Schöndruck als auch im Schön- und Widerdruck generell mechanische Greiferübergaben erfolgen.The advantage of the invention is that the security of the register accuracy is increased because mechanical gripper transfers generally take place both in straight printing and in face and back printing.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand einer Zeichnung erläutert.
Es zeigt:

Fig. 1
eine Bogenoffsetrotationsdruckmaschine für wahlweise Schön- und Widerdruck nach dem Prinzip der Bogenhinterkantenwendung arbeitend, in Seitenansicht, schematisch,
Fig. 2
eine Seitenansicht auf den der Wendetrommel vorgesetzten Druckzylinder,
Fig. 3
einen Längsschnitt durch den Druckzylinder,
Fig. 4
einen Querschnitt durch den Druckzylinder,
Fig. 5
einen weiteren Querschnitt durch den Druckzylinder,
Fig. 6
eine Einzelheit des Greifens des Bogenendes am Druckzylinder mittels Greifeinrichtung, im Querschnitt,
Fig. 7
eine weitere Einzelheit, im Querschnitt,
Fig. 8
eine weitere Einzelheit, teilweise im Schnitt, als Draufsicht,
Fig. 9
einen Längsschnitt durch einen Druckzylinder in einer teilweise abweichenden Ausführungsform,
Fig. 10
einen Querschnitt durch den Druckzylinder nach Fig. 9,
Fig. 11
ein hartes Gummituch als Verbundwerkstoff, schematisch,
Fig. 12
den Wendevorgang in drei Phasen.
An embodiment of the invention is explained below with reference to a drawing.
It shows:
Fig. 1
a sheet-fed offset printing machine for optional face and back printing working on the principle of the trailing edge application, in side view, schematically,
Fig. 2
a side view of the impression cylinder placed in front of the turning drum,
Fig. 3
a longitudinal section through the pressure cylinder,
Fig. 4
a cross section through the pressure cylinder,
Fig. 5
another cross section through the pressure cylinder,
Fig. 6
a detail of the gripping of the bow end on the printing cylinder by means of gripping device, in cross section,
Fig. 7
another detail, in cross section,
Fig. 8
another detail, partly in section, as a top view,
Fig. 9
2 shows a longitudinal section through a pressure cylinder in a partially different embodiment,
Fig. 10
9 shows a cross section through the pressure cylinder according to FIG. 9,
Fig. 11
a hard rubber blanket as a composite material, schematically,
Fig. 12
the turning process in three phases.

In Fig. 1 ist eine Bogenoffsetrotationsdruckmaschine für wahlweisen Schön- und Widerdruck dargestellt, die nach dem Prinzip der Bogenhinterkantenwendung in bekannter Weise arbeitet. Das schematisch dargestellte Zweifarben-Druckwerk 21 weist eine doppelt große Überführtrommel bzw. Wendetrommel 2 zwischen doppelt großen Druckzylindern 1, 3 auf, die in bekannter Weise in Seitenständern 11 gelagert sind. Die zu bedruckenden Bogen 13 werden in ebenfalls bekannter Weise dem Druckzylinder 1 zugeführt und vom Druckzylinder 3 wieder abgenommen. Die Druckzylinder 1, 3 sind jeweils mit zwei Greifeinrichtungen 8, 9 bzw. 23, 24 versehen, die einander diametral gegenüber liegen und entsprechend gesteuert zum Transport des Bogens 13 dienen. Druckzylinder 1, 3 und Überführtrommel bzw. Wendetrommel 2 sind für den Transport von jeweils zwei Bogen 13 am Umfang ausgebildet. Um durchgehend mechanische Greiferübergaben zu ermöglichen, weist die doppelt große überführtrommel bzw. Wendetrommel 2 zwei Paar aus zusammenwirkenden, gegeneinander verschwenkbaren Greifeinrichtungen 4, 6 bzw. 5, 7 bestehende Greifersysteme auf. Die Greifeinrichtungen 4, 6 und 5, 7 liegen einander dabei paarweise diametral gegenüber. Zur Abnahme der Bogenhinterkante im Tangentenpunkt mittels der in Drehrichtung gesehenen vorderen Greifeinrichtungen 4 bzw. 5 ist je eine verstellbare Bespannung 10 auf dem der Wendetrommel 2 vorgesetzten Druckzylinder 1 derart vorgesehen, daß ein Greifen des Bogenendes ermöglicht wird. Hierzu weist gemäß Fig. 1 bis 8 der Druckzylinder 1 einen um mehrere Millimeter kleineren und über die gesamte Druckfläche geschlossenen Grundkörper 20 auf, auf dem als Bespannung 10 ein Rolladen 10.1 mit einer darüberliegenden Folienbespannung 17 aufliegt, über die der Druckzylinder 1 seinen eigentlichen Durchmesser erhält oder es sind gemäß Fig. 9 und 10 als Bespannung 10 im Druckzylinder 1 in Umfangsrichtung versenkt mehrere Rolladenstreifen 10.2 untergebracht, deren Oberflächen sich mit der Druckzylinderoberfläche decken und die mit einem durchgehenden Deckblech 31 überzogen sind, über das der Druckzylinder 1 seinen eigentlichen Durchmesser erhält.In Fig. 1, a sheet offset rotary printing machine for optional face and back printing is shown, which works on the principle of the trailing edge application in a known manner. The schematically illustrated two-color printing unit 21 has a double-sized transfer drum or reversing drum 2 between double-sized printing cylinders 1, 3, which are mounted in side stands 11 in a known manner. The sheets 13 to be printed are also fed to the printing cylinder 1 in a known manner and removed from the printing cylinder 3 again. The printing cylinders 1, 3 are each provided with two gripping devices 8, 9 and 23, 24, which are diametrically opposite one another and are used for the transport of the sheet 13 in a correspondingly controlled manner. Printing cylinders 1, 3 and transfer drum or turning drum 2 are designed for the transport of two sheets 13 on the circumference. In order to enable mechanical gripper transfers throughout, the double-sized transfer drum or turning drum 2 has two pairs of gripping systems 4, 6 and 5, 7, which interact and can be pivoted relative to one another. The gripping devices 4, 6 and 5, 7 lie diametrically opposite one another in pairs. To remove the trailing edge of the sheet at the tangent point by means of the front gripping devices 4 and 5 seen in the direction of rotation, an adjustable covering 10 is provided on the printing cylinder 1 placed in front of the turning drum 2 in such a way that gripping of the bow end is made possible. 1 to 8, the printing cylinder 1 has a base body 20 which is several millimeters smaller and closed over the entire printing area and on which is covered 10 a roller shutter 10.1 rests with an overlying film covering 17, via which the printing cylinder 1 obtains its actual diameter or, according to FIGS. 9 and 10, several roller shutter strips 10.2 are housed in the printing cylinder 1 in the circumferential direction, the surfaces of which coincide with the printing cylinder surface and which are covered with a continuous cover plate 31, via which the printing cylinder 1 receives its actual diameter.

Als Folienbespannung 17 über Rolladen 10.1 eignet sich z.B. eine über die ganze Breite des Druckzylinders 1 reichende Folie aus feinem Stahlband, entsprechendem Gewebe oder dgl. von 0,2 bis 1 mm Dicke, während das durchgehende Deckblech 31 über Rolladenstreifen 10.2 eine Dicke von z.B. 1 mm aufweisen kann.Suitable as film covering 17 via roller shutters 10.1 is e.g. a film made of fine steel strip, corresponding fabric or the like, which extends over the entire width of the printing cylinder 1 and is 0.2 to 1 mm thick, while the continuous cover plate 31 has a thickness of e.g. Can have 1 mm.

Vorzugsweise besitzt der Druckzylinder 1 einen um mindestens 3 mm kleineren Außendurchmesser, damit die Greifeinrichtungen 4 bzw. 5 uner den Bogen 13 am Bogenende greifen können, wenn der Rolladen 10.1 verwendet werden soll. (Fig. 7) Dadurch werden zwischen den Greifeinrichtungen 5, 8 bzw. 4, 9 zur Erfassung der Bogenhinterkante variable Freiräume 26 geschaffen, so daß bei jeder Formateinstellung die in Drehrichtung der doppelt großen Überführtrommel bzw. Wendetrommel 2 gesehen vorderen Greifeinrichtungen 4 bzw. 5 in die Umfangsbahn des doppelt großen Druckzylinders 1 eintauchen können.The printing cylinder 1 preferably has an outer diameter which is at least 3 mm smaller, so that the gripping devices 4 and 5 can grip the sheet 13 at the end of the sheet if the roller shutter 10.1 is to be used. (Fig. 7) As a result, variable free spaces 26 are created between the gripping devices 5, 8 and 4, 9 for detecting the trailing edge of the sheet, so that the front gripping devices 4 and 5 seen in the direction of rotation of the double-sized transfer drum or reversing drum 2 are used for each format setting can dive into the circumferential path of the double-large impression cylinder 1.

Werden Rolladenstreifen 10.2 verwendet, ergeben sich die am Bogenende erforderlichen Freiräume 26 für die Greifeinrichtungen 4 bzw. 5 durch die im Grundkörper 20 des Druckzylinders 1 gebildeten Schlitze.If roller shutter strips 10.2 are used, the free spaces 26 required for the gripping devices 4 and 5 at the end of the curve result from the slots formed in the base body 20 of the printing cylinder 1.

Außerdem sind im Endglied 12 des Rolladens 10.1 einschließlich Folienbespannung 17 zum Greifen des Bogen endes des Bogens 13 in einer Reihe in Achsrichtung des Druckzylinders 1 sich erstreckende Aussparungen 39 für die Greifereinrichtungen 4 bzw. 5 einer Greiferreihe vorgesehen (Fig. 8).In addition, in the end member 12 of the roller shutter 10.1 including film covering 17 for gripping the sheet End of the sheet 13 in a row in the axial direction of the printing cylinder 1 extending recesses 39 are provided for the gripper devices 4 and 5 of a gripper row (Fig. 8).

Vom Begriff Rolladen 10.1 wird ein über die gesamte Breite aus schmalen Leisten 32 und/oder Kettengliedern, Drahtgeflechten, einem Spezialgummituch oder ähnlich elastischem Verbund 30 bestehtende Bespannung 10 verstanden, die am Druckzylinderaußendurchmesser eine nahezu geschlossene Außenfläche aufweist, radial starr und in Umfangsrichtung aufwickelbar ist. Die schmalen Leisten 32 sind auf mehreren Stahlschnüren 33 aufgefädelt und weisen auf dem Druckzylinder 1 eine nahezu spaltfreie Oberfläche auf (Fig. 6 und 8). Als Spezialgummituch eignet sich z.B. ein hartes Gummituch, welches eine Deckschicht 53 mit Einlagen 52 und eine Grundschicht 54 mit Einkerbungen derart aufweist, daß der Verbund radial starr und in Umfangsrichtung auf dem Druckzylinder 1 aufwickelbar ist (Fig. 11). Drahtgeflechte oder dgl. elastische Verbunde 30 anderer Art müssen vergleichbare Eigenschaften aufweisen.The term roller shutters 10.1 is understood to mean a covering 10 consisting of narrow strips 32 and / or chain links, wire mesh, a special rubber blanket or similar elastic composite 30 over the entire width, which has an almost closed outer surface on the outer diameter of the pressure cylinder, is radially rigid and can be wound up in the circumferential direction. The narrow strips 32 are threaded onto several steel cords 33 and have an almost gap-free surface on the pressure cylinder 1 (FIGS. 6 and 8). A special rubber blanket is e.g. a hard rubber blanket, which has a cover layer 53 with inserts 52 and a base layer 54 with notches such that the composite is radially rigid and can be wound onto the printing cylinder 1 in the circumferential direction (FIG. 11). Wire mesh or similar elastic composites 30 of a different type must have comparable properties.

Während des Betriebes der Druckmaschine sind sowohl Rolladen 10.1 als auch die Folienbespannugn 17 bzw. das Deckblech 31 über Rolladenstreifen 10.2 je nach eingestellter Bogenlänge auf im Druckzylinder 1 gelagerten Aufwickelwellen 16 bzw. 18 aufwickelbar. Aufgerauhte Flächen 55 sichern die Lage der Rolladenstreifen 10.2 auf den Aufwickelwellen 18. Die Aufwickelwellen 16, 18 sind in Stirnwänden 15 des Grundkörpers 20 aufgenommen.During operation of the printing press, both roller shutters 10.1 and also the film coverings 17 and the cover plate 31 can be wound up via roller shutter strips 10.2, depending on the set sheet length, on winding shafts 16 and 18 mounted in the printing cylinder 1. Roughened surfaces 55 secure the position of the roller shutter strips 10.2 on the take-up shafts 18. The take-up shafts 16, 18 are received in end walls 15 of the base body 20.

Ein Endglied 12 des Rolladens 10.1 bzw. das über Rolladenstreifen 10.2 angeordnete Deckblech 31 weisen am Ende eine größere Breite auf, sind stirnseitig auf einem Zapfen 27 des Druckzylinders 1 gelagert und durch Einrichtungen 28, 29 von außen verstell- und klemmbar (Figuren 3 und 9).An end member 12 of the roller shutter 10.1 or the cover plate 31 arranged over roller shutter strips 10.2 have a greater width at the end, are mounted on the end face on a pin 27 of the pressure cylinder 1 and can be adjusted and clamped from the outside by means 28, 29 (FIGS. 3 and 9 ).

Um eine Formateinstellung vornehmen zu können, ist mittels axial hintereinander liegender Innensechskante gleicher Größe und zugehörigen Innensechskantschlüsseln eine Einrichtung 29 aus ihrer Klemmstellung zu lösen, um die Bespannung 10 auf dem Grundkörper 20 des vorgesetzten Druckzylinders 1 in Umfangsrichtung verschieben zu können. Die hierzu erforderliche Einrichtung 28 besteht aus einer Stellwelle 34, die in den Zapfen 27 des Druckzylinders 1 integriert ist. Auf der Stellwelle 34 ist ein Stellritzel 35 befestigt, welches über ein im Druckzylinder 1 gelagertes Zahnrad 36 mit einem weiteren Stellritzel 43 in Wirkverbindung steht, daß auf einer in den Stirnwänden 15 gelagerten Verstellwelle 41 befestigt ist (Figuren 3, 4, 9). Weitere Stellritzel 44, 45 an beiden Enden der Verstellwelle 41 treiben auf dem Zapfen 27 in den Stirnwänden 15 gelagerte Zahnscheiben 46, 47 an, die wiederum über weitere Stellritzel 48, 49 bzw. 50, 51 in Wirkverbindung mit zwei Aufwickelwellen 18 und über Schrauben 42 in Wirkverbindung mit den Seitenteilen 14 des Endgliedes 12 des Rolladens 10.1 oder des Endes des Deckbleches 31 stehen (Figuren 3, 5, 9).In order to be able to make a format setting, a device 29 must be released from its clamping position by means of axially arranged hexagon sockets of the same size and associated hexagon wrenches in order to be able to move the covering 10 on the base body 20 of the printing cylinder 1 in the circumferential direction. The device 28 required for this consists of an adjusting shaft 34 which is integrated in the pin 27 of the pressure cylinder 1. An adjusting pinion 35 is fastened on the adjusting shaft 34, which is in operative connection with a further adjusting pinion 43 via a gear wheel 36 mounted in the pressure cylinder 1 and which is attached to an adjusting shaft 41 mounted in the end walls 15 (FIGS. 3, 4, 9). Further setting pinions 44, 45 at both ends of the adjusting shaft 41 drive toothed disks 46, 47 mounted on the pin 27 in the end walls 15, which in turn are connected via further setting pinions 48, 49 and 50, 51 in operative connection with two winding shafts 18 and via screws 42 are in operative connection with the side parts 14 of the end member 12 of the roller shutter 10.1 or the end of the cover plate 31 (FIGS. 3, 5, 9).

Um ein Straffen der Bogenhinterkante des Bogens 13 zu gewährleisten, sind im Endglied 12 des Rolladens 10.1 sich in einer Reihe in Achsrichtung des Druckzylinders 1 erstreckende abstellbare Saugteller 19 integriert, die durch einen Kanal 25 mit Saugluft versorgt werden (Figuren 3, 6 bis 8). Ebenso sind in die Rolladenstreifen 10.2 an deren Ende sich in einer Reihe in Achsrichtung des Druckzylinders 1 erstreckende Saugflächen integriert, die von einer Saugeinrichtung 22 mit Saugluft versorgt werden (Figuren 9 und 10). Die äußeren Saugteller 19 können geschlossen werden, falls das Bogenformat eines Bogens 13 schmaler als die Bespannung 10, d.h. die Bogentransportfläche ist. Die Saugeinrichtung 22 ist in an sich bekannter Weise rechenförmig ausgebildet, der Teilung der Rolladenstreifen 10.2 im Grundkörper 20 des vorgesetzten Druckzylinders 1 entsprechend und schließt mit der Oberfläche des Deckbleches 31 mit nicht dargestellten Saugflächen und Saugbohrungen in einer Ebene ab. Zur Durchführung der Saugluft an die Saugeinrichtung 22 ist eine Saugluftzuführung 40 vorgesehen, von der aus die Saugluft in das Innere des Grundkörpers 20 geführt ist. Die Saugluftzuführung 40 ist mit den Seitenteilen 14 des durchgehenden, auf dem Grundkörper 20 des vorgesetzten Druckzylinders 1 verdrehbaren Deckbleches 31 verbunden und kann wie aus Figur 10 ersichtlich, in einem Langloch 38 in den Stirnwänden 15 bei Formatverstellung kreisförmig gleiten.In order to ensure a tightening of the trailing edge of the sheet 13, in the end member 12 of the roller shutter 10.1 there are integrated suction plates 19 which extend in a row in the axial direction of the pressure cylinder 1 and which are supplied with suction air through a channel 25 (FIGS. 3, 6 to 8). . Likewise, in the roller shutter strips 10.2 at the end of which are integrated suction lines extending in a row in the axial direction of the pressure cylinder 1 and which are supplied with suction air by a suction device 22 (FIGS. 9 and 10). The outer suction plates 19 can be closed if the sheet format of a sheet 13 is narrower than the covering 10, ie the sheet transport surface. The suction device 22 is constructed in a manner known per se in the form of a rake Division of the roller shutter strips 10.2 in the base body 20 of the printing cylinder 1 in front and ends with the surface of the cover plate 31 with suction surfaces and suction bores, not shown, in one plane. To carry the suction air to the suction device 22, a suction air supply 40 is provided, from which the suction air is guided into the interior of the base body 20. The suction air supply 40 is connected to the side parts 14 of the continuous cover plate 31 which can be rotated on the base body 20 of the pressure cylinder 1 in front and, as can be seen from FIG. 10, can slide circularly in an elongated hole 38 in the end walls 15 when the format is changed.

Eine stets glatte Gegendruckfläche wird dadurch sichergestellt, daß Rolladen 10.1 bzw. Rolladenstreifen 10.2 auf dem Druckzylinder 1 überschliffen werden. Außerdem sind durch nicht dargestellte Fügeelemente und durch Federelemente in an sich bekannter Weise Rolladen 10.1 mit Folienbespannugn 17 bzw. Rolladenstreifen 10.2 mit Deckblech 31 vorzugsweise am Ende der Bespannung 10 verbunden und die Bespannung 10 ist z.B. durch Torsionsfedern an den Aufwickelwellen 16, 18 zusätzlich spannbar. Dadurch ist stets eine sichere Lage der relativ lose auf dem Grundkörper 20 des Druckzylinders 1 geführten Bespannung 10 gewährleistet. Ein Abstreifer 37 beseitigt Ablagerungen auf dem Grundkörper 20.An always smooth counterpressure surface is ensured in that roller shutters 10.1 or roller shutter strips 10.2 are ground on the printing cylinder 1. In addition, by means of joining elements (not shown) and by spring elements, roller shutters 10.1 with foil coverings 17 or roller shutter strips 10.2 with cover plate 31 are preferably connected at the end of the covering 10 and the covering 10 is e.g. can also be tensioned by torsion springs on the winding shafts 16, 18. This always ensures a secure position of the covering 10 guided loosely on the base body 20 of the printing cylinder 1. A scraper 37 removes deposits on the base body 20.

Mit der dargestellten Anordnung der Druckzylinder 1, 3, Überführtrommel bzw. Wendetrommel 2 und der zugeordneten Greifersysteme ist sowohl ein einseitiges Bedrucken der Bogen 13 mit zwei Farben als auch das Wenden des Bogens 13 im funktionellen Zusammenhang mit dem vorgesetzten Druckzylinder 1 und damit ein beidseitiges Bedrucken der Bogen 13 möglich. Das zweite Druckwerk wird dann als Widerdruckwerk verwendet.With the illustrated arrangement of the printing cylinders 1, 3, transfer drum or turning drum 2 and the associated gripper systems, both one-sided printing of the sheet 13 with two colors and the turning of the sheet 13 are functionally related to the printing cylinder 1 in front and thus double-sided printing the arch 13 possible. The second printing unit is then used as an impression printing unit.

Beim einseitigen Bedrucken erfolgt der Transport des Bogens 13 in bekannter Weise durch Übergabe zum Beispiel von den Greifeinrichtungen 9 des Druckzylinders 1 an die Greifeinrichutngen 6 der Überführtrommel 2 und von dieser an die Greifeinrichtungen 24 des Druckzylinders 3 und wird deshalb nicht näher beschrieben (s. Figur 1).In the case of one-sided printing, the sheet 13 is transported in a known manner by transfer, for example, from the gripping devices 9 of the printing cylinder 1 to the gripping devices 6 of the transfer drum 2 and from there to the gripping devices 24 of the printing cylinder 3 and is therefore not described in more detail (see FIG 1).

Bei dem in Figur 12 in 3 Phasen dargestellten beidseitigen Druck auf den Bogen 13 ist beispielsweise von den Greifeinrichtungen 9 des vorgesetzten Druckzylinders 1 der Bogen 13 in einer ersten Phase über den Tangentenpunkt hinweggeführt worden und das Bogenende hat den Tangentenpunkt erreicht. Das Bogenende wird von den Greifeinrichtungen 5 gegriffen, danach geben die Greifeinrichtungen 9 den Bogen frei. Durch die erfindungsgemäße auf das Bogenende eingestellte Bespannung 10 ist ein ungehindertes Greifen unter das Bogenende am vorgesetzten Druckzylinder 1 mittels mechanischer Greifersysteme möglich. In einer zweiten Phase werden die Greifeinrichtungen 5 und die Greifeinrichtungen 7 während der weiteren Drehung der Druckzylinder 1, 3 und der Wendetrommel 2 auf die Mitte der Wendetrommel 2 und aufeinanderzu in an sich bekannter Weise geschwungen. Dabei wird der Bogen 13 am Bogenende von den Greifeinrichtungen 5 an die Greifeinrichtungen 7 übergeben und von diesen in einer weiteren Phase unter gleichzeitigem Aus-wärtsschwerken der Greifeinrichtungen 7 zur Drucklinie gefördert. Der Bogen 13 ist nunmehr registerhaltig, abschmier-und knitterfrei gewendet und wird von den Greifeinrichtungen 7 mit der Hinterkante voran an die Greifeinrichtungen 23 des Druckzylinders 3 übergeben. In gleicher Weise werden die nächsten Bogen übergeben, wobei die Druckzylinder 1, 3 und die Wendetrommel 2 wie aus der Zeichnung ersichtlich für den Transport von jeweils zwei Bogen am Umfang eingerichtet sind.

1
doppelt großer Druckzylinder
2
doppelt große Überführtrommel bzw. Wendetrommel
3
doppelt großer Druckzylinder
4
Greifeinrichtung
5
"
6
"
7
"
8
"
9
"
10
Bespannung
10.1
Rolladen
10.2
Rolladenstreifen
11
Seitenständer
12
Endglied des Rolladens
13
Bogen
14
Seitenteil
15
Stirnwand
16
Aufwickelwelle
17
Folienbespannung
18
Aufwickelwelle
19
Saugteller
20
Grundkörper
21
Zweifarbendruckwerk
22
Saugeinrichtung
23
Greifeinrichtung
24
Greifeinrichtung
25
Kanal
26
variabler Freiraum
27
Zapfen
28
Einrichtung zum Verstellen
29
Einrichtung zum Klemmen
30
Verbundewerkstoff
31
durchgehendes Deckblech
32
schmale Leiste
33
Stahlschnüre
34
Stellwelle
35
Stellritzel
36
Zahnrad
37
Abstreifer
38
Langloch
39
Aussparung
40
Saugluftzuführung
41
Verstellwelle
42
Schrauben
43
Stellritzel
44
"
45
"
46
Zahnscheibe
47
"
48
Stellritzel
49
"
50
"
51
"
52
Einlagen
53
Deckschicht
54
Grundschicht
55
aufgerauhte Fläche
In the two-sided printing on the sheet 13 shown in FIG. 12 in three phases, the sheet 13 was guided over the tangent point in a first phase by the gripping devices 9 of the upstream printing cylinder 1 and the sheet end has reached the tangent point. The end of the sheet is gripped by the gripping devices 5, after which the gripping devices 9 release the sheet. Due to the covering 10 according to the invention set on the arch end, unhindered gripping under the arch end on the upstream pressure cylinder 1 is possible by means of mechanical gripper systems. In a second phase, the gripping devices 5 and the gripping devices 7 are swung during the further rotation of the pressure cylinders 1, 3 and the turning drum 2 onto the center of the turning drum 2 and towards one another in a manner known per se. The sheet 13 is transferred from the gripping devices 5 to the gripping devices 7 at the end of the sheet and is conveyed by the gripping devices 7 to the printing line in a further phase while simultaneously pulling the gripping devices 7 outward. The sheet 13 is now held in register, lubrication-free and wrinkle-free and is transferred from the gripping devices 7 with the trailing edge first to the gripping devices 23 of the printing cylinder 3. The next sheets are transferred in the same way, the printing cylinders 1, 3 and the turning drum 2 being set up for the transport of two sheets on the circumference, as can be seen from the drawing.
1
double-sized impression cylinder
2nd
double large transfer drum or turning drum
3rd
double-sized impression cylinder
4th
Gripping device
5
"
6
"
7
"
8th
"
9
"
10th
Covering
10.1
Roller shutters
10.2
Roller shutter strips
11
Side stand
12
Roller shutter end link
13
arc
14
Side panel
15
Front wall
16
Take-up shaft
17th
Foil covering
18th
Take-up shaft
19th
Suction plate
20th
Basic body
21st
Two-color printing unit
22
Suction device
23
Gripping device
24th
Gripping device
25th
channel
26
variable freedom
27th
Cones
28
Adjustment device
29
Clamping device
30th
Composite material
31
continuous cover plate
32
narrow bar
33
Steel cords
34
Control shaft
35
Pinion
36
gear
37
Wipers
38
Long hole
39
Recess
40
Suction air supply
41
Adjustment shaft
42
Screws
43
Pinion
44
"
45
"
46
Tooth lock washer
47
"
48
Pinion
49
"
50
"
51
"
52
insoles
53
Top layer
54
base layer
55
roughened surface

Claims (11)

  1. Sheet turning device for rotary printing presses in serial construction with double size impression cylinders (1) which are preferably connected with a single double size transfer drum or turning drum (2), wherein the turning drum (2) is equipped with cooperating gripper system which, in functional cooperation with the impression cylinder (1), effect the turning of the sheet (13) characterised in that the impression cylinder (1) set before the turning drum (2) is provided with an adjustable covering (10) which makes possible a gripping of the sheet end with gripper units (5).
  2. Sheet turning device according to Claim 1, characterised in that the impression cylinder (1) has a base body (20) smaller by several millimetres and closed over the entire impression surface, on which there lies as covering (10) a roller blind (10.1) with a final covering (17) lying thereover by means of which the impression cylinder (1) achieves its actual diameter.
  3. Sheet turning device according to Claim 1, characterised in that, as covering (10), there are installed in the impression cylinder (1) countersunk in the peripheral direction several roller blind strips (10.2), the surfaces of which match with the surface of the impression cylinder and which are covered by an overall covering sheet (31) by means of which the impression cylinder (1) achieves its actual diameter.
  4. Sheet turning device according to Claim 1 and 2, characterised in that the roller blind (10.1) consists across the entire width of narrow bars (32) and/or chain members, twisted wires, a special rubber blanket or similar elastic composite, has at the impression cylinder outer diameter a substantially closed exterior surface, is radially rigid and can be wound up in the peripheral direction.
  5. Sheet turning device according to Claim 1 and 2, characterised in that the roller blinds (10.1) consist of narrow bars (32) which are wound on to several steel strips (33) and which have on the impression cylinder (1) a substantially slot free surface.
  6. Sheet turning device according to Claims 1, 2, 4 and 5, characterised in that an end member (12) of the roller blind (10.1) has a larger width, is mounted at the end faces on a pin (27) of the impression cylinder (1) and can be adjusted and clamped from outside by devices (28, 29).
  7. Sheet turning device according to Claim 1 and 3, characterised in that the cover sheet (31) arranged over roller blind strips (10.2) has, at the end, a larger width, is mounted at its end faces on a pin (27) of the impression cylinder (1) and can be adjusted and clamped from outside by devices (28, 29).
  8. Sheet turning device according to Claims 1, 2, 4, 5 and 6, characterised in that in the end member (12) of the roller blind (10.1) there are integrated in a row extending in the axial direction of the impression cylinder (1) switchable off suction plates (19), which can be provided with suction through a channel (25).
  9. Sheet turning device according to Claims 1, 3 and 7, characterised in that in the roller blind strips (10.2) at their ends there are integrated extending in a row in the axial direction of the impression cylinder (1) suction surfaces which are provided with suction by a suction unit (22).
  10. Sheet turning device according to Claims 1, 2, 4, 5, 6 and 8, characterised in that in the end member (12) of the roller blind (10.1) including foil covering (17) for gripping the sheet end of the sheet (13) recesses (39) are provided for the gripper units (5) of a row of grippers extending in a row in the axial direction of the impression cylinder (1).
  11. Sheet turning device according to Claims 1, 3, 7 and 9, characterised in that at the end of the covering sheet (31) for gripping the sheet end of the sheet (13) between the roller blinds (10.2) recesses (39) are provided for the gripper units (5) of a gripper series extending in a row in the axial direction of the impression cylinder (1).
EP86116613A 1985-12-03 1986-11-28 Sheet-turning device for rotary-printing presses with a line construction Expired - Lifetime EP0225567B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86116613T ATE61016T1 (en) 1985-12-03 1986-11-28 SHEET TURNING DEVICE FOR ROTARY PRINTING MACHINES IN IN-LINE CONSTRUCTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853542649 DE3542649A1 (en) 1985-12-03 1985-12-03 BOW TURNING DEVICE FOR ROTARY PRINTING MACHINES IN ROW DESIGN
DE3542649 1985-12-03

Publications (3)

Publication Number Publication Date
EP0225567A2 EP0225567A2 (en) 1987-06-16
EP0225567A3 EP0225567A3 (en) 1989-03-15
EP0225567B1 true EP0225567B1 (en) 1991-02-27

Family

ID=6287443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116613A Expired - Lifetime EP0225567B1 (en) 1985-12-03 1986-11-28 Sheet-turning device for rotary-printing presses with a line construction

Country Status (5)

Country Link
US (1) US4796529A (en)
EP (1) EP0225567B1 (en)
JP (1) JPS62216744A (en)
AT (1) ATE61016T1 (en)
DE (1) DE3542649A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730386C1 (en) * 1987-09-10 1989-04-13 Roland Man Druckmasch Device for conveying sheets through the printing zone of the blanket cylinder and impression cylinder of a sheet-fed rotary printing machine
ES2031187T3 (en) * 1987-09-11 1992-12-01 M.A.N.-Roland Druckmaschinen Aktiengesellschaft DEVICE ON ROTARY MACHINES IN PRINTING OF PAGES IN VARIOUS COLORS TO TIGHTEN A PLEASE ON THE PRINTING CYLINDER.
US5156090A (en) * 1989-06-24 1992-10-20 Heidelberger Druckmaschinen Ag Device for smoothing a sheet on an impression cylinder of a sheet-fed rotary printing machine
DE4303872C2 (en) * 1992-04-24 1995-08-10 Roland Man Druckmasch Printing machine with a forme cylinder and process for preparing the forme cylinder
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
JPH09141990A (en) * 1995-11-20 1997-06-03 Brother Ind Ltd Cylindrical stamp
DE69703783T2 (en) * 1996-10-28 2001-04-19 Hans E Ruprecht Holding Ag Kra Device on a printing machine for perforating, punching, cutting, creasing and partial painting or for printing envelopes
JP3730359B2 (en) * 1997-04-24 2006-01-05 株式会社小森コーポレーション Sheet-fed rotary printing press with reversing mechanism
DE19833901A1 (en) * 1998-07-28 2000-02-03 Heidelberger Druckmasch Ag Method and device for transferring the trailing edge of a sheet in a turning device of a sheet-fed rotary printing press
DE10315193A1 (en) * 2002-04-18 2003-10-30 Heidelberger Druckmasch Ag Reversing assembly for sheet processing machine, has recesses that permit gripper devices to grip sheet trailing edge such that recesses are formed at various positions in circumferential surface for adapting to different sheet formats
US7628109B2 (en) * 2005-07-26 2009-12-08 Hewlett-Packard Development Company, L.P. Image transfer mechanism
EP1590179B1 (en) * 2003-02-02 2010-04-07 Hewlett-Packard Development Company, L.P. Image transfer mechanism
DE102005016498A1 (en) 2005-04-11 2006-10-12 Man Roland Druckmaschinen Ag Turning device for sheet printing press has printing cylinder and turning drum arranged so that turning grips can fit in grip channel in printing cylinder
JP5361168B2 (en) * 2006-11-10 2013-12-04 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Device for reversing a sheet of paper while it is transported through a printing press
CN105437733A (en) * 2015-12-17 2016-03-30 重庆宏劲印务有限责任公司 Rotary letterpress machine

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US1072703A (en) * 1912-06-21 1913-09-09 Cottrell C B & Sons Co Printing-machine.
DE393249C (en) * 1923-05-30 1924-04-07 Vogtlaendische Maschinenfabrik Printing cylinder with elastic lift for rotary printing machines
DE1262294B (en) * 1966-07-22 1968-03-07 Planeta Veb Druckmasch Werke Sheet turning device in a transfer cylinder arranged between the printing cylinders of two printing units of a multi-color sheet-fed rotary printing press
US3537391A (en) * 1967-10-18 1970-11-03 Miller Printing Machinery Co Sheet handling apparatus and method for multicolor perfector press
DE2358223B2 (en) * 1973-11-22 1975-10-30 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Transfer drum with gripper devices for capturing the leading and trailing edge of the sheet for printing machines
US4018161A (en) * 1975-03-25 1977-04-19 Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen Printing machine with sheet-transfer arrangement
DE2632243C3 (en) * 1976-07-17 1979-08-30 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Transfer drum for printing machines that can be adjusted to variable sheet lengths
DE3338450C1 (en) * 1983-10-22 1985-06-05 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device for inserting the end sections of a flexible elevator into a pit of a cylinder of a printing press

Also Published As

Publication number Publication date
ATE61016T1 (en) 1991-03-15
DE3542649A1 (en) 1987-06-04
EP0225567A3 (en) 1989-03-15
DE3542649C2 (en) 1989-04-13
JPS62216744A (en) 1987-09-24
US4796529A (en) 1989-01-10
EP0225567A2 (en) 1987-06-16
JPH0511552B2 (en) 1993-02-15

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