EP1109671B1 - Method and device for producing a multicolour print - Google Patents

Method and device for producing a multicolour print Download PDF

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Publication number
EP1109671B1
EP1109671B1 EP99952408A EP99952408A EP1109671B1 EP 1109671 B1 EP1109671 B1 EP 1109671B1 EP 99952408 A EP99952408 A EP 99952408A EP 99952408 A EP99952408 A EP 99952408A EP 1109671 B1 EP1109671 B1 EP 1109671B1
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EP
European Patent Office
Prior art keywords
sheet
printing
cylinder
transfer drum
colour
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
EP99952408A
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German (de)
French (fr)
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EP1109671A2 (en
Inventor
Arndt Jentzsch
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.)
Koenig and Bauer AG
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Koenig and Bauer Albert AG
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Publication date
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Publication of EP1109671A2 publication Critical patent/EP1109671A2/en
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Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/14—Multicolour printing

Definitions

  • the invention relates to a method and a device for producing a multicolor print on a sheet in printing presses in which the sheet is more than one turn of the impression cylinder lies on the impression cylinder and in a gripper closure on the impression cylinder sequentially printed with several colors.
  • Two revolutions of the printing cylinder are required to produce a multi-color print, with only one sheet being fed to every second printing saddle.
  • a printed sheet is only removed from every second printing saddle. After the last color has been applied, the printed sheet is transferred to a chain circle and placed on a delivery stack.
  • the disadvantage of this printing machine is that, due to its design, there are no possibilities for giving the sheet a greater color effect by applying additional colors.
  • DE 195 23 378 A1 which includes a printing press, has recently become known. which works on the same principle as the printing machine according to US-PS 54 69 787. According to The subject of DE 195 23 378 A1 is for imaging the printing plates in the machine a laser imaging device is provided.
  • This printing machine also achieves better color prints by applying it of more than four colors on the sheet not possible.
  • the invention advantageously enables the field of application of a printing machine with a triple-sized printing cylinder and double-sized offset and printing form cylinder to be expanded by arranging a first and a second transfer drum, each with a gripper system, and providing the first transfer drum with a rubber blanket.
  • the transfer drum can be used as an image transfer device and a third printing unit can be installed in the printing press for applying additional colors to the sheet. It is therefore irrelevant whether the transfer drum receives the print image directly from a printing form cylinder or indirectly from an offset cylinder. It is essential that the transfer drum is equipped in such a way that it can fulfill several functions (sheet transport, image transport and image transmission). The solution requires little effort since it is integrated into a printing press that can print four colors on the sheet in one pass.
  • the arrangement of an application device for the second transfer drum for painting or Applying another color to the sheet also increases the area of application of the Press.
  • a device for writing 1 to printing formes 3 clamped on a printing form cylinder 2 is provided.
  • the printing form cylinder 2 is equipped with two active surfaces 4, each of which carries a printing form 3.
  • the printing form cylinder 2 is also assigned two inking units 5 which can be switched on and off alternately.
  • the printing form cylinder 2 is operatively connected to a printing cylinder 6 via an offset cylinder 9 with two surfaces.
  • the printing cylinder 6 has three printing surfaces 7 and accordingly three gripper rows 8 for gripping sheets 10 to be printed.
  • the printing cylinder 6 is assigned a second formation of offset cylinder 9, printing form cylinder 2, inking unit 5 and device for writing 1.
  • the impression cylinder 6 thus has a triple size diameter.
  • Printing form cylinder 2 and offset cylinder 9 have a diameter twice as large. Offset cylinder 9, printing form cylinder 2 and the two inking units 5 form a printing unit 30.1 to 30.3, of which, according to FIGS. 1 and 3, the first and second printing units 30.1, 30.2 are directly assigned to the printing cylinder 6.
  • 11 feed elements 12 are arranged above the feeder sheet stack.
  • a feed mechanism 14 is provided for feeding the sheets 10 to be printed from the contact line 13 to the impression cylinder 6.
  • the sheet delivery arm 25 consists of the delivery chain circle 17 guided around the front and rear chain deflection wheel 22, 23 and of the delivery sheet stack 21 arranged below the delivery chain circle 17.
  • the first and the second (viewed in the conveying direction of the sheet 10) transfer drum 15, 16 are each provided with a gripper system 32 for the sheet conveyance.
  • the diameter of the transfer drum 15, 16 corresponds to the diameter of the printing form and offset cylinder 2.9.
  • the first transfer drum 15 has a closed surface in the functional area, which is covered with a rubber blanket. Printing cylinder 6 and the first transfer drum 15 have the common tangent point t 6.15 .
  • the first transfer drum 15, see FIGS. 1 and 3, is assigned the third printing unit 30.3, which has the same structure (offset cylinder 9, printing form cylinder 2, two inking units 5) as the first and second printing units 30.1, 30.2.
  • the two inking units 5 per printing unit 30.1-30.3 work alternately (alternating positioning on the printing form cylinder 2), so that two colors can be applied to the sheet 10 per printing unit 30.1-30.3. These are the first and fourth colors of the first printing group 30.1, the second and fifth colors of the second printing group 30.2, and the third and sixth colors of the third printing group 30.3.
  • the third printing unit 30.3 is indirectly assigned to the printing cylinder 6 (FIGS. 1 and 3) via the first transfer drum 15, which in this case fulfills the function of sheet transport, image transport and image transmission.
  • the first transfer drum 15 takes over the function of the offset cylinder 9 of the third printing unit 30.3. This eliminates the actual offset cylinder 9 and the third printing unit 30.3 is thus directly assigned to the printing cylinder 6 in the same way as the other printing units 30.1, 30.2.
  • the second transfer drum 16 is provided with a closed drum cap, which is designed so stable that the second transfer drum 16 can perform the function of an impression cylinder.
  • the second transfer drum 16 is assigned an application device 31 for coating or applying another color to the sheet 10.
  • the application device 31 consists of the ink fountain 24, an anilox roller 27 and an applicator roller 28, which is provided between the anilox roller 27 and the second transfer drum 16.
  • the diameter of the transfer drum 16, applicator roller 28 and anilox roller 27 behaves as 2: 1: 0.5.
  • the ink fountain 24 is filled with paint and the applicator roller 28 is covered with a rubber blanket.
  • the ink fountain 24 is filled with ink and the application roller 28 is provided with a flexographic printing plate.
  • a dryer 29 can be provided in the front chain deflection wheel 22 for drying the sheet 10.
  • the sheet 10 separated from the feeder sheet stack 11 is conveyed by means of the elements for conveying 12 to the contact line 13 of the printing press and is transferred from the feed mechanism 14 to one of the gripper rows 8 of the printing cylinder 6. Only every second gripper row 8 passing the feed mechanism 14 is fed a sheet 10.
  • the printed image is applied to the printing form 3 clamped on the printing form cylinder 2 by means of the device for writing 1.
  • the printing image is inked by the inking unit 5 and transferred to the offset cylinder 9, which passes the printing image onto the sheet 10 lying on the printing cylinder 6.
  • the first and second colors are applied to the sheet 10 by the first and second printing units 30.1, 30.2.
  • the print image is transferred to the offset cylinder 9 assigned to the first transfer drum 15. From the blanket of the offset cylinder 9, the print image is now transferred to the blanket of the first transfer drum 15 and from this at the tangent point t 6.15 with a third color to the sheet 10, which is still held by the gripper row 8 of the printing cylinder 6.
  • the sheet 10 lying on the printing cylinder 6 is again guided through an entire revolution of the printing cylinder 6, so that the fourth and fifth colors can be applied by the first and second printing units 30.1, 30.2. Reached after which the sheet leading edge to the tangent point t 6.15 of pressure cylinder 6 and first transfer drum 15, the already provided with five color orders sheet 10 transferred from the impression cylinder 6 to the gripper system 32 of the first transfer drum 15 °. At the same time, the sixth color is transferred from the blanket of the transfer drum 15 to the sheet 10. The sheet 10 is then fed to the delivery chain circuit 17 via the second transfer drum 16 and deposited on the delivery sheet stack 21.
  • the method steps run as described above with the following change. Since the first transfer drum 15 takes over the function of the offset cylinder 9, the third and sixth colors from the printing form cylinder 2 of the third printing unit 30.3 directly onto the transfer drum 15 and from this onto the sheet 10, which in turn alternately either from a gripper row 8 of the printing cylinder 6 or is guided by the gripper system 32 of the transfer drum 15. Thereafter, the sheet 10 is deposited on the delivery sheet stack 21 as stated.
  • the application device 31 is assigned to the second transfer drum 16, can the sheet 10 additionally with a varnish or with another color provided and then placed on the delivery sheet stack 21.

Abstract

Multicolor prints are produced on a sheet in a printing machine. More than four colors can be applied to the sheet during its passage through the printing machine. Three printing units and an application unit are associated either directly with a printing cylinder of the printing machine or with a transfer drum which is associated with the printing cylinder. Seven colors, or six colors and a varnish coating can be applied to the sheet by the printing machine.

Description

Die Erfindung betrifft ein Verfahren und eine Einrichtung zum Erzeugen eines Mehrfarbendruckes auf einem Bogen in Druckmaschinen, in denen der Bogen mehr als eine Umdrehung des Druckzylinders auf dem Druckzylinder liegt und in einem Greiferschluß auf dem Druckzylinder nacheinander mit mehreren Farben bedruckt wird.The invention relates to a method and a device for producing a multicolor print on a sheet in printing presses in which the sheet is more than one turn of the impression cylinder lies on the impression cylinder and in a gripper closure on the impression cylinder sequentially printed with several colors.

Es ist eine Druckmaschine mit einem Bogenanleger nebst Anlegerbogenstapel, Elementen zur Förderung eines zu bedruckenden Bogens zu einer Anleglinie, Zuführmechanismen zur Bogenförderung von der Anleglinie zu einem drei Drucksättel aufweisenden Druckzylinder, wobei dieser mit mindestens einer Zylindergruppe, bestehend aus einem Offsetzylinder mit zwei Wirkflächen und einem Druckformzylinder mit ebenfalls zwei Wirkflächen, zusammenwirkt, und einer einen Auslagekettenkreis enthaltenden Auslage bekannt (US-PS 5 469 787).
Zur Herstellung eines Mehrfarbendruckes sind zwei Umdrehungen des Druckzylinders erforderlich, dabei wird nur jedem zweiten Drucksattel ein Bogen zugeführt. Des Weiteren wird nur von jedem zweiten Drucksattel ein bedruckter Bogen abgeführt.
Nach dem Auftrag der letzten Farbe wird der bedruckte Bogen an einen Kettenkreis übergeben und auf einem Auslegerstapel abgelegt.
Diese Druckmaschine hat den Nachteil, dass aufgrund ihrer Bauweise keine Möglichkeiten vorhanden sind, um dem Bogen durch Auftrag weiterer Farben einen größeren Farbeffekt zu verleihen.It is a printing press with a sheet feeder and feeder sheet stack, elements for conveying a sheet to be printed to a lay-up line, feed mechanisms for sheet feed from the lay-up line to a printing cylinder having three printing saddles, this with at least one cylinder group consisting of an offset cylinder with two active surfaces and one Printing form cylinder with two active surfaces, cooperates, and a delivery containing a delivery chain circle known (US Pat. No. 5,469,787).
Two revolutions of the printing cylinder are required to produce a multi-color print, with only one sheet being fed to every second printing saddle. Furthermore, a printed sheet is only removed from every second printing saddle.
After the last color has been applied, the printed sheet is transferred to a chain circle and placed on a delivery stack.
The disadvantage of this printing machine is that, due to its design, there are no possibilities for giving the sheet a greater color effect by applying additional colors.

In jüngerer Zeit wurde die DE 195 23 378 A1 bekannt, die eine Druckmaschine beinhaltet, die nach dem gleichen Prinzip wie die Druckmaschine gemäß US-PS 54 69 787 arbeitet. Gemäß Gegenstand der DE 195 23 378 A1 ist für die Bebilderung der Druckplatten in der Maschine eine Laser-Bebilderungseinrichtung vorgesehen.DE 195 23 378 A1, which includes a printing press, has recently become known. which works on the same principle as the printing machine according to US-PS 54 69 787. According to The subject of DE 195 23 378 A1 is for imaging the printing plates in the machine a laser imaging device is provided.

Auch an dieser Druckmaschine ist eine Erzielung besserer Farbdrucke durch das Aufbringen von mehr als vier Farben auf den Bogen nicht möglich. This printing machine also achieves better color prints by applying it of more than four colors on the sheet not possible.

Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung, eine Druckmaschine der genannten Gattung derart auszubilden, dass in einem Maschinendurchlauf mehr als vier Farben auf den Bogen aufgebracht werden können.Based on this prior art, it is an object of the invention to provide a printing press of the type mentioned in such a way that more than four in one machine run Colors can be applied to the bow.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des 1. oder des 2, oder des 5, oder des 6. Anspruchs gelöst.According to the invention, this object is achieved by the features of the 1st or 2nd or 5th or of the 6th claim resolved.

Die Erfindung ermöglicht in vorteilhafter Weise, dass das Einsatzgebiet einer Druckmaschine mit dreifachgroßem Druckzylinder und doppeltgroßem Offset- und Druckformzylinder erweitert werden kann, indem dem Druckzylinder eine erste und eine zweite Übergabetrommel mit je einem Greifersystem nachgeordnet und die erste Übergabetrommel mit einem Gummituch versehen wird. Damit kann die Übergabetrommel als Bildübertrager genutzt und ein drittes Druckwerk für das Auftragen weiterer Farben auf den Bogen in die Druckmaschine installiert werden.
Damit ist es unerheblich, ob die Übergabetrommel das Druckbild direkt von einem Druckformzylinder oder indirekt von einem Offsetzylinder erhält. Wesentlich ist, dass die Übergabetrommel derart ausgestattet wird, dass sie mehrere Funktionen erfüllen kann (Bogentransport, Bildtransport und Bildübertragung). Die Lösung erfordert einen geringen Aufwand, da sie in eine Druckmaschine, die in einem Durchlauf vier Farben auf den Bogen drucken kann, integriert wird.The invention advantageously enables the field of application of a printing machine with a triple-sized printing cylinder and double-sized offset and printing form cylinder to be expanded by arranging a first and a second transfer drum, each with a gripper system, and providing the first transfer drum with a rubber blanket. This means that the transfer drum can be used as an image transfer device and a third printing unit can be installed in the printing press for applying additional colors to the sheet.
It is therefore irrelevant whether the transfer drum receives the print image directly from a printing form cylinder or indirectly from an offset cylinder. It is essential that the transfer drum is equipped in such a way that it can fulfill several functions (sheet transport, image transport and image transmission). The solution requires little effort since it is integrated into a printing press that can print four colors on the sheet in one pass.

Die Anordnung einer Auftrageinrichtung zur zweiten Übergabetrommel zum Lackieren oder Aufbringen einer weiteren Farbe auf den Bogen erhöht darüber hinaus den Einsatzbereich der Druckmaschine.The arrangement of an application device for the second transfer drum for painting or Applying another color to the sheet also increases the area of application of the Press.

Anhand eines Ausführungsbeispieles soll nachfolgend die Erfindung näher beschrieben werden. The invention will be described in more detail below using an exemplary embodiment.

In den Zeichnungen zeigt

Fig. 1:
eine Druckmaschine der genannten Gattung mit der Erfindung als Seitenansicht in schematischer Darstellung,
Fig. 2:
Fig. 1 mit Ausbildung der ersten Übergabetrommel als Offsetzylinder des dritten Druckwerkes,
Fig. 3:
eine Druckmaschine gemäß Fig. 1 mit einer zusätzlichen Auftrageinrichtung an der zweiten Übergabetrommel zum Auftragen von Farbe oder Lack.
In the drawings shows
Fig. 1:
a printing machine of the type mentioned with the invention as a side view in a schematic representation,
Fig. 2:
1 with the formation of the first transfer drum as an offset cylinder of the third printing unit,
Fig. 3:
a printing machine according to FIG. 1 with an additional application device on the second transfer drum for applying paint or varnish.

Die Druckmaschine gemäß Fig. 1 bis 3 hat folgenden Aufbau. Es ist eine Einrichtung zum Beschreiben 1 von auf einem Druckformzylinder 2 aufgespannten Druckformen 3 vorgesehen. Der Druckformzylinder 2 ist mit zwei Wirkflächen 4 ausgestattet, die jeweils eine Druckform 3 tragen. Dem Druckformzylinder 2 sind weiterhin zwei alternierend an- und abstellbare Farbwerke 5 zugeordnet.
Der Druckformzylinder 2 steht über einen Offsetzylinder 9 mit zwei Flächen mit einem Druckzylinder 6 in Wirkverbindung.
Der Druckzylinder 6 besitzt drei Druckflächen 7 und dementsprechend drei Greiferreihen 8 zum Erfassen von zu bedruckenden Bogen 10. Dem Druckzylinder 6 ist eine zweite Formation von Offsetzylinder 9, Druckformzylinder 2, Farbwerk 5 und Einrichtung zum Beschreiben 1 zugeordnet.
Der Druckzylinder 6 weist somit einen dreifachgroßen Durchmesser auf. Druckformzylinder 2 und Offsetzylinder 9 weisen einen zweifachgroßen Durchmesser auf. Offsetzylinder 9, Druckformzylinder 2 und die beiden Farbwerke 5 bilden ein Druckwerk 30.1 bis 30.3, von denen gemäß Fig. 1 und Fig. 3 dem Druckzylinder 6 das erste und das zweite Druckwerk 30.1,30.2 direkt zugeordnet sind.
Für die Förderung von zu bedruckenden Bogen 10 von einem Anlegerbogenstapel 11 zu einer Anleglinie 13 sind oberhalb des Anlegerbogenstapels 11 Elemente zur Förderung 12 angeordnet. Für die Zufuhr der zu bedruckenden Bogen 10 von der Anleglinie 13 zum Druckzylinder 6 ist ein Zuführmechanismus 14 vorgesehen. 1 to 3 has the following structure. A device for writing 1 to printing formes 3 clamped on a printing form cylinder 2 is provided. The printing form cylinder 2 is equipped with two active surfaces 4, each of which carries a printing form 3. The printing form cylinder 2 is also assigned two inking units 5 which can be switched on and off alternately.
The printing form cylinder 2 is operatively connected to a printing cylinder 6 via an offset cylinder 9 with two surfaces.
The printing cylinder 6 has three printing surfaces 7 and accordingly three gripper rows 8 for gripping sheets 10 to be printed. The printing cylinder 6 is assigned a second formation of offset cylinder 9, printing form cylinder 2, inking unit 5 and device for writing 1.
The impression cylinder 6 thus has a triple size diameter. Printing form cylinder 2 and offset cylinder 9 have a diameter twice as large. Offset cylinder 9, printing form cylinder 2 and the two inking units 5 form a printing unit 30.1 to 30.3, of which, according to FIGS. 1 and 3, the first and second printing units 30.1, 30.2 are directly assigned to the printing cylinder 6.
For the conveyance of sheets 10 to be printed from a feeder sheet stack 11 to a contact line 13, 11 feed elements 12 are arranged above the feeder sheet stack. A feed mechanism 14 is provided for feeding the sheets 10 to be printed from the contact line 13 to the impression cylinder 6.

Dem Druckzylinder 6 ist zur Bogenabfuhr eine Bogenabführeinrichtung 26 nachgeordnet, die aus zwei Übergabetrommeln 15,16 und dem Bogenausleger 25 besteht.
Der Bogenausleger 25 besteht aus dem um das vordere und das hintere Kettenumlenkrad 22,23 geführten Auslagekettenkreis 17 und aus dem unterhalb des Auslagekettenkreises 17 angeordneten Auslagebogenstapel 21.
Die erste und die zweite (in Förderrichtung des Bogens 10 gesehen) Übergabetrommel 15,16 sind mit je einem Greifersystem 32 für die Bogenförderung versehen. Der Durchmesser der Übergabetrommel 15,16 entspricht dem Durchmesser von Druckform- und Offsetzylinder 2,9.A sheet discharge device 26, which consists of two transfer drums 15, 16 and the sheet delivery 25, is arranged downstream of the printing cylinder 6 for sheet removal.
The sheet delivery arm 25 consists of the delivery chain circle 17 guided around the front and rear chain deflection wheel 22, 23 and of the delivery sheet stack 21 arranged below the delivery chain circle 17.
The first and the second (viewed in the conveying direction of the sheet 10) transfer drum 15, 16 are each provided with a gripper system 32 for the sheet conveyance. The diameter of the transfer drum 15, 16 corresponds to the diameter of the printing form and offset cylinder 2.9.

Die erste Übergabetrommel 15 weist im Funktionsbereich eine geschlossene Oberfläche auf, die mit einem Gummituch bespannt ist. Druckzylinder 6 und die erste Übergabetrommel 15 weisen den gemeinsamen Tangentenpunkt t6,15 auf.
Der ersten Übergabetrommel 15, siehe Fig. 1 und Fig. 3, ist das dritte Druckwerk 30.3 zugeordnet, das den gleichen Aufbau hat (Offsetzylinder 9, Druckformzylinder 2, zwei Farbwerke 5) wie das erste und das zweite Druckwerk 30.1, 30.2.
Die beiden Farbwerke 5 je Druckwerk 30.1 - 30.3 arbeiten alternierend (wechselweises Anstellen an den Druckformzylinder 2), so dass je Druckwerk 30.1 - 30.3 zwei Farben auf den Bogen 10 aufgebracht werden können.
Dies sind vom ersten Druckwerk 30.1 die erste und vierte Farbe, vom zweiten Druckwerk 30.2 die zweite und fünfte Farbe, vom dritten Druckwerk 30.3 die dritte und sechste Farbe.
Das dritte Druckwerk 30.3 ist dem Druckzylinder 6 indirekt (Fig. 1 u. 3)über die erste Übergabetrommel 15 zugeordnet, die in diesem Fall die Funktion des Bogentransports, des Bildtransports und der Bildübertragung erfüllt.
Nach der in Fig. 2 dargestellten Variante übernimmt die erste Übergabetrommel 15 die Funktion des Offsetzylinders 9 des dritten Druckwerkes 30.3. Dadurch entfällt der eigentliche Offsetzylinder 9 und das dritte Druckwerk 30.3 ist damit dem Druckzylinder 6 gleichermaßen wie die anderen Druckwerke 30.1, 30.2 direkt zugeordnet. The first transfer drum 15 has a closed surface in the functional area, which is covered with a rubber blanket. Printing cylinder 6 and the first transfer drum 15 have the common tangent point t 6.15 .
The first transfer drum 15, see FIGS. 1 and 3, is assigned the third printing unit 30.3, which has the same structure (offset cylinder 9, printing form cylinder 2, two inking units 5) as the first and second printing units 30.1, 30.2.
The two inking units 5 per printing unit 30.1-30.3 work alternately (alternating positioning on the printing form cylinder 2), so that two colors can be applied to the sheet 10 per printing unit 30.1-30.3.
These are the first and fourth colors of the first printing group 30.1, the second and fifth colors of the second printing group 30.2, and the third and sixth colors of the third printing group 30.3.
The third printing unit 30.3 is indirectly assigned to the printing cylinder 6 (FIGS. 1 and 3) via the first transfer drum 15, which in this case fulfills the function of sheet transport, image transport and image transmission.
According to the variant shown in FIG. 2, the first transfer drum 15 takes over the function of the offset cylinder 9 of the third printing unit 30.3. This eliminates the actual offset cylinder 9 and the third printing unit 30.3 is thus directly assigned to the printing cylinder 6 in the same way as the other printing units 30.1, 30.2.

Nach einer anderen Ausführungsform (Fig. 3) ist die zweite Übergabetrommel 16 mit einer geschlossenen Trommelkappe versehen, die derart stabil ausgeführt ist, dass die zweite Übergabetrommel 16 die Funktion eines Gegendruckzylinders erfüllen kann.
Der zweiten Übergabetrommel 16 ist eine Auftrageinrichtung 31 zum Lackauftrag oder Auftrag einer weiteren Farbe auf den Bogen 10 zugeordnet. Die Auftrageinrichtung 31 besteht aus dem Farbkasten 24, einer Rasterwalze 27 und einer Auftragwalze 28, die zwischen der Rasterwalze 27 und der zweiten Übergabetrommel 16 vorgesehen ist. Der Durchmesser von Übergabetrommel 16, Auftragwalze 28 und Rasterwalze 27 verhält sich wie 2:1:0,5.
Beim Lackieren ist der Farbkasten 24 mit Lack gefüllt und die Auftragwalze 28 mit einem Gummituch bespannt. Beim Drucken (Aufbringen einer weiteren Farbe) ist der Farbkasten 24 mit Farbe gefüllt und die Auftragwalze 28 ist mit einer Flexodruckplatte versehen.
Zur Trocknung des Bogens 10 kann im vorderen Kettenumlenkrad 22 ein Trockner 29 vorgesehen sein.According to another embodiment (Fig. 3), the second transfer drum 16 is provided with a closed drum cap, which is designed so stable that the second transfer drum 16 can perform the function of an impression cylinder.
The second transfer drum 16 is assigned an application device 31 for coating or applying another color to the sheet 10. The application device 31 consists of the ink fountain 24, an anilox roller 27 and an applicator roller 28, which is provided between the anilox roller 27 and the second transfer drum 16. The diameter of the transfer drum 16, applicator roller 28 and anilox roller 27 behaves as 2: 1: 0.5.
During painting, the ink fountain 24 is filled with paint and the applicator roller 28 is covered with a rubber blanket. When printing (applying another color), the ink fountain 24 is filled with ink and the application roller 28 is provided with a flexographic printing plate.
A dryer 29 can be provided in the front chain deflection wheel 22 for drying the sheet 10.

Die Wirkungsweise der Druckmaschine mit der Erfindung ist folgende:The operation of the printing press with the invention is as follows:

Der vom Anlegerbogenstapel 11 vereinzelte Bogen 10 wird mittels der Elemente zur Förderung 12 bis zur Anleglinie 13 der Druckmaschine gefördert und von dem Zuführmechanismus 14 an eine der Greiferreihen 8 des Druckzylinders 6 übergeben. Dabei wird nur jeder zweiten den Zuführmechanismus 14 passierenden Greiferreihe 8 ein Bogen 10 zugeführt.
Das Druckbild wird mittels der Einrichtung zum Beschreiben 1 auf die auf dem Druckformzylinder 2 aufgespannte Druckform 3 aufgebracht. Das Druckbild wird durch das Farbwerk 5 eingefärbt und auf den Offsetzylinder 9 übertragen, der das Druckbild auf den auf dem Druckzylinder 6 liegenden Bogen 10 weitergibt. Die erste und zweite Farbe wird durch das erste und zweite Druckwerk 30.1, 30.2 auf den Bogen 10 aufgetragen. Gleichzeitig wird das Druckbild auf den der ersten Übergabetrommel 15 zugeordneten Offsetzylinder 9 übertragen. Vom Gummituch des Offsetzylinders 9 wird das Druckbild nunmehr auf das Gummituch der ersten Übergabetrommel 15 und von dieser im Tangentenpunkt t6,15 mit einer dritten Farbe auf den Bogen 10, der weiterhin von der Greiferreihe 8 des Druckzylinders 6 gehalten wird, übertragen. The sheet 10 separated from the feeder sheet stack 11 is conveyed by means of the elements for conveying 12 to the contact line 13 of the printing press and is transferred from the feed mechanism 14 to one of the gripper rows 8 of the printing cylinder 6. Only every second gripper row 8 passing the feed mechanism 14 is fed a sheet 10.
The printed image is applied to the printing form 3 clamped on the printing form cylinder 2 by means of the device for writing 1. The printing image is inked by the inking unit 5 and transferred to the offset cylinder 9, which passes the printing image onto the sheet 10 lying on the printing cylinder 6. The first and second colors are applied to the sheet 10 by the first and second printing units 30.1, 30.2. At the same time, the print image is transferred to the offset cylinder 9 assigned to the first transfer drum 15. From the blanket of the offset cylinder 9, the print image is now transferred to the blanket of the first transfer drum 15 and from this at the tangent point t 6.15 with a third color to the sheet 10, which is still held by the gripper row 8 of the printing cylinder 6.

Danach wird der auf dem Druckzylinder 6 liegende Bogen 10 nochmals um eine ganze Umdrehung des Druckzylinders 6 herumgeführt, so dass vom ersten und zweiten Druckwerk 30.1, 30.2 die vierte und fünfte Farbe aufgetragen werden kann.
Erreicht danach die Bogenvorderkante den Tangentenpunkt t6,15 von Druckzylinder 6 und erster Übergabetrommel 15 wird der bereits mit fünf Farbaufträgen versehene Bogen 10 vom Druckzylinder 6 an das Greifersystem 32 der ersten Übergabetrommel 15 übergeben. Gleichzeitig wird die sechste Farbe vom Gummituch der Übergabetrommel 15 auf den Bogen 10 übertragen.
Über die zweite Übergabetrommel 16 wird der Bogen 10 danach dem Auslagekettenkreis 17 zugeführt und auf dem Auslagebogenstapel 21 abgelegt.Thereafter, the sheet 10 lying on the printing cylinder 6 is again guided through an entire revolution of the printing cylinder 6, so that the fourth and fifth colors can be applied by the first and second printing units 30.1, 30.2.
Reached after which the sheet leading edge to the tangent point t 6.15 of pressure cylinder 6 and first transfer drum 15, the already provided with five color orders sheet 10 transferred from the impression cylinder 6 to the gripper system 32 of the first transfer drum 15 °. At the same time, the sixth color is transferred from the blanket of the transfer drum 15 to the sheet 10.
The sheet 10 is then fed to the delivery chain circuit 17 via the second transfer drum 16 and deposited on the delivery sheet stack 21.

Bei der Ausführungsform gemäß Fig. 2 laufen die Verfahrensschritte mit folgender Änderung wie vorstehend beschrieben ab. Da die erste Übergabetrommel 15 die Funktion des Offsetzylinders 9 übernimmt, werden die dritte und sechste Farbe vom Druckformzylinder 2 des dritten Druckwerkes 30.3 direkt auf die Übergabetrommel 15 und von dieser auf den Bogen 10, der wiederum wechselweise entweder von einer Greiferreihe 8 des Druckzylinders 6 oder vom Greifersystem 32 der Übergabetrommel 15 geführt wird, übertragen.
Danach wird der Bogen 10 wie ausgeführt auf dem Auslagebogenstapel 21 abgelegt.In the embodiment according to FIG. 2, the method steps run as described above with the following change. Since the first transfer drum 15 takes over the function of the offset cylinder 9, the third and sixth colors from the printing form cylinder 2 of the third printing unit 30.3 directly onto the transfer drum 15 and from this onto the sheet 10, which in turn alternately either from a gripper row 8 of the printing cylinder 6 or is guided by the gripper system 32 of the transfer drum 15.
Thereafter, the sheet 10 is deposited on the delivery sheet stack 21 as stated.

Ist, wie in Fig. 3 dargestellt, der zweiten Übergabetrommel 16 die Auftrageinrichtung 31 zugeordnet, kann der Bogen 10 zusätzlich mit einem Lackauftrag oder mit einer weiteren Farbe versehen und danach auf dem Auslagebogenstapel 21 abgelegt werden. If, as shown in FIG. 3, the application device 31 is assigned to the second transfer drum 16, can the sheet 10 additionally with a varnish or with another color provided and then placed on the delivery sheet stack 21.

BezugszeichenaufstellungREFERENCE NUMBERS

11
Einrichtung zum BeschreibenDescription device
22
DruckformzylinderPlate cylinder
33
Druckformprinting form
44
Wirkflächenactive surfaces
55
Farbwerkinking
66
Druckzylinderpressure cylinder
77
Druckflächeprint area
88th
Greiferreihenrows of grippers
99
Offsetzylinderoffset cylinder
1010
Bogenarc
1111
AnlegerbogenstapelInvestors sheet pile
1212
Elemente zur FörderungPromotional items
1313
AnleglinieAnleglinie
1414
Zuführmechanismenfeed mechanisms
1515
erste Übergabetrommelfirst transfer drum
1616
zweite Übergabetrommelsecond transfer drum
1717
AuslagekettenkreisDelivery chain circle
2121
AuslagebogenstapelDisplay sheet pile
2222
vorderes Kettenumlenkradfront chain idler
2323
hinteres Kettenumlenkradrear chain idler
2424
Farbkastenpaintbox
2525
Bogenauslegersheet delivery
2626
Bogenabführeinrichtungsheet removal
2727
Rasterwalzeanilox roller
2828
Auftragwalzeapplicator roll
2929
Trocknerdryer
30.130.1
erstes Druckwerkfirst printing unit
30.230.2
zweites Druckwerksecond printing unit
30.330.3
drittes Druckwerkthird printing unit
3131
Auftrageinrichtungapplicator
3232
Greifersystemgripper system
T6,15 M 6.15
Tangentenpunkttangent point

Claims (13)

  1. Method of producing a multi-colour print on a sheet (10) in printing machines, in which the sheet (10) lies on the printing cylinder (6) over more than one rotation of the printing cylinder (6) and is provided in succession with several colours while in a gripper lock on the printing cylinder (6), the method elapsing in the following method steps:
    application of a first and a second colour to the sheet (10) by the first and second printing mechanism (30.1, 30.2),
    application of a third colour to the first transfer drum (15) by the third printing mechanism (30.3) and
    to the sheet (10) by the first transfer drum (15),
    application of a fourth and fifth colour to the sheet (10) by the first and second printing mechanism (30.1, 30.2),
    application of a sixth colour to the first transfer drum (15) by the third printing mechanism (30.3),
    transfer of the sheet (10) from the printing cylinder (6) to the first transfer drum (15),
    application of the sixth colour to the sheet (10) by the first transfer drum (15) and
    deposit of the sheet (10) on the delivery sheet stack (21).
  2. Method of producing a multi-colour print on a sheet (10) in printing machines, in which the sheet (10) lies on the printing cylinder (6) over more than one rotation of the printing cylinder (6) and is provided in succession with several colours while in a gripper lock on the printing cylinder (6), the method elapsing in the following method steps:
    application of a first and a second colour to the sheet (10) by the first and second printing mechanism (30.1, 30.2),
    application of a third colour to the sheet (10) by the third printing mechanism (30.3),
    application of a fourth and fifth colour to the sheet (10) by the first and second printing mechanism (30.1, 30.2),
    transfer of the sheet (10) from the printing cylinder (6) to the first transfer drum (15),
    application of a sixth colour to the sheet (10) by the third printing mechanism (30.3) and
    deposit of the sheet (10) on the delivery sheet stack (21).
  3. Method according to claim 1 and 2, wherein the sheet (10) is provided with a further colour after application of the sixth colour.
  4. Method according to claim 1 and 2, wherein the sheet (10) is finished with a lacquer coating after application of the sixth colour.
  5. Equipment for carrying out the method according to claim 1 for producing a multi-colour print on a sheet (10) in printing machines, in which the sheet (10) lies on the printing cylinder (6) over more than one rotation of the printing cylinder (6) and is provided in succession with several colours while in a gripper lock on the printing cylinder (6), wherein
    the printing cylinder (6) has a threefold diameter with three work surfaces,
    a first and a second printing mechanism (30.1; 30.2) of the same construction are associated with the printing cylinder (6),
    a first and second transfer drum (15, 16) are arranged downstream of the printing cylinder (6) and
    a third printing mechanism (30.3) is associated with the first transfer drum (15).
  6. Equipment for carrying out the method according to claim 2 for producing a multi-colour print on a sheet (10) in printing machines, in which the sheet (10) lies on the printing cylinder (6) over more than one rotation of the printing cylinder (6) and is provided in succession with several colours while in a gripper lock on the printing cylinder (6), wherein
    the printing cylinder (6) has a threefold diameter with three work surfaces,
    a first and second transfer drum (15, 16) are arranged downstream of the printing cylinder (6) and
    three printing mechanisms (30.1; 30.2; 30.3) of the same construction are associated with the printing cylinder (6).
  7. Equipment according to claim 5 and 6, wherein the printing mechanism (30.1; 30.2; 30.3) consists of a respective double-size offset cylinder (9) and printing forme cylinder (2) and two inking mechanisms (5) associated with the printing forme cylinder (2).
  8. Equipment according to claim 5 and 6, wherein the first transfer drum (15) fulfils the function of the sheet and image transport and the image transfer.
  9. Equipment according to claim 5, 6 and 8, wherein the first transfer drum (15) is provided with a rubber blanket.
  10. Equipment according to claim 6, wherein the first transfer drum (15) is constructed as an offset cylinder (9).
  11. Equipment according to claim 5 and 6, wherein an applicator device (31) is associated with the second transfer drum (16).
  12. Equipment according to claim 5, 6 and 11, wherein the applicator device (31) is selectably usable for application of lacquer or ink to the sheet (10).
  13. Equipment according to claim 5, 6 and 8, wherein each of the first and second transfer drums (15, 16) is provided with a gripper system (32).
EP99952408A 1998-09-02 1999-08-12 Method and device for producing a multicolour print Expired - Lifetime EP1109671B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19839875 1998-09-02
DE19839875A DE19839875B4 (en) 1998-09-02 1998-09-02 Method and device for generating a multicolor print
PCT/DE1999/002556 WO2000013903A2 (en) 1998-09-02 1999-08-12 Method and device for producing a multicolour print

Publications (2)

Publication Number Publication Date
EP1109671A2 EP1109671A2 (en) 2001-06-27
EP1109671B1 true EP1109671B1 (en) 2002-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99952408A Expired - Lifetime EP1109671B1 (en) 1998-09-02 1999-08-12 Method and device for producing a multicolour print

Country Status (5)

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US (1) US6546862B1 (en)
EP (1) EP1109671B1 (en)
AT (1) ATE228062T1 (en)
DE (3) DE19839875B4 (en)
WO (1) WO2000013903A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19839875B4 (en) * 1998-09-02 2005-03-03 Koenig & Bauer Ag Method and device for generating a multicolor print
DE19953020B4 (en) * 1999-11-04 2006-08-24 Koenig & Bauer Ag Method and device for generating a multicolor print
US6401608B1 (en) * 2000-05-05 2002-06-11 Halm Industries, Co., Inc. Printing press with perfecting station
ITMI20061102A1 (en) * 2006-06-06 2007-12-07 Gidue S P A MULTICONFIGURATION PRINTING GROUP, WITH HIGH VERSATILITY
JP6245748B2 (en) * 2014-02-12 2017-12-13 株式会社小森コーポレーション Flexible electronic device manufacturing equipment

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1085224A (en) * 1911-03-13 1914-01-27 Hoe & Co R Multicolor-printing press.
US4011812A (en) * 1972-10-26 1977-03-15 Manuel Julian Lecha Machine for printing different colors simultaneously by the offset method
US4509424A (en) * 1982-04-22 1985-04-09 De La Rue Giori S.A. Convertible, multicolor, rotary printing press
US4854232A (en) * 1986-10-13 1989-08-08 Dainippon Screen Mfg. Co. Ltd. Method and apparatus for multi-color printing
JPH0210939U (en) * 1988-07-06 1990-01-24
US5469787A (en) * 1994-03-15 1995-11-28 Heath Custom Press, Inc. Multi-color printing press
DE19523378A1 (en) * 1995-06-30 1997-01-02 Koenig & Bauer Albert Ag Sheet offset rotary printing machine
DE19720744A1 (en) * 1997-05-17 1998-11-19 Kba Planeta Ag Printing press
DE19720746C2 (en) * 1997-05-17 2002-06-27 Koenig & Bauer Ag Printing machine with a printing cylinder
DE19756796A1 (en) * 1997-12-19 1999-07-22 Koenig & Bauer Ag Process for printing sheets in face and reverse printing as well as face printing
AU738241B2 (en) * 1998-04-08 2001-09-13 Kba-Notasys Sa Rotary printing machine for security papers
DE19822892B4 (en) * 1998-05-22 2006-06-14 Koenig & Bauer Ag press
DE19839875B4 (en) * 1998-09-02 2005-03-03 Koenig & Bauer Ag Method and device for generating a multicolor print

Also Published As

Publication number Publication date
DE19839875A1 (en) 2000-03-09
WO2000013903A3 (en) 2000-05-25
DE59903485D1 (en) 2003-01-02
EP1109671A2 (en) 2001-06-27
US6546862B1 (en) 2003-04-15
DE19953021B4 (en) 2010-10-21
DE19953021A1 (en) 2001-05-10
WO2000013903A2 (en) 2000-03-16
DE19839875B4 (en) 2005-03-03
ATE228062T1 (en) 2002-12-15

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