EP0764523A1 - Printing device for indirect printing - Google Patents

Printing device for indirect printing Download PDF

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Publication number
EP0764523A1
EP0764523A1 EP96114602A EP96114602A EP0764523A1 EP 0764523 A1 EP0764523 A1 EP 0764523A1 EP 96114602 A EP96114602 A EP 96114602A EP 96114602 A EP96114602 A EP 96114602A EP 0764523 A1 EP0764523 A1 EP 0764523A1
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EP
European Patent Office
Prior art keywords
cylinder
printing unit
unit according
cylinders
printing
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Granted
Application number
EP96114602A
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German (de)
French (fr)
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EP0764523B1 (en
EP0764523B2 (en
Inventor
Ralf Dr. Schädlich
Frank Tiepner
Matthias Köhler
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Manroland AG
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MAN Roland Druckmaschinen AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/004—Electric or hydraulic features of drives
    • B41F13/0045—Electric driving devices

Definitions

  • the invention relates to a printing unit for indirect printing according to the preamble of claim 1.
  • the invention has for its object to improve the possible uses of a printing unit for indirect printing according to the preamble of claim 1 with regard to the variety of print jobs that can be carried out. This object is solved by the characterizing features of claim 1.
  • the invention enables the use of sleeves of different sizes, which results in an independence of the length format of the printing unit, while the known comparable printing units are each only designed for one length format.
  • the printing on and off of the cylinders is a thickness compensation for different substrates as well as the compensation of temperature influences on the cylinder adjustment.
  • Fig. 1 shows a side view of a in a vertical cylinder arrangement of two forme cylinders 1; 2 and two a printing substrate web with a horizontal web run simultaneously printing cylinders 3 on both sides; 4 existing printing units.
  • the cylinders each consist of a basic cylinder body 5 to 8 and a sleeve 10 to 13 which can be fixed thereon and which can be changed axially through a lateral frame opening 9 and is endless in the circumferential direction, the sleeves 10; 13 the forme cylinder 1; 2 each the endless printing form and the sleeves 11; 12 the transfer cylinder 3; 4 Wear an endless blanket each.
  • the forme cylinder 1; 2 and the transfer cylinder 3; 4 can be variably equipped with sleeves 10 to 13 different outer diameters.
  • the sleeves which are moveable on the cylinder base body under their expansion on the cylinder base body and are usually stiffer due to the circumferential compressed air emerging from the cylinder base body, are considerably stiffer in scope
  • Sleeves 10 to 13 of the invention are not shown favorably clamped over a circumference of the cylinder base body expanding by means of pressure medium, the pressure medium being introduced into a shell-side cavity of the cylinder base body via a rotary transducer and a bore of the cylinder journal, and there the jacket of which acts radially elastically deforming outwards.
  • all cylinders on the sleeve change side are displaceable in a straight line radially to the cylinder journal 14 in guides 15 to 18 and serve as a bearing holder during operation 19; 20 supported.
  • the guides 15 'to 18' for the jaws 19 '; 20 'on the outside of the frame 21 connected to this, the guides of the other three cylinders are each in a support plate 22; 23 arranged, which in turn is vertically displaceable in guides 24 to 27 of the frame 21.
  • all cylinders are equipped with a fixed bearing bracket without adjustable jaws. While the bearing bracket for the lower forme cylinder 4 is fixed to the frame, the bearing brackets of the other cylinders are each designed as a continuous yoke 42 (FIG. 3) which on both sides of the cylinder journal each has one of the carrier plates 22; 23 the opposite side, vertically displaceable support plate is connected.
  • the cylinders are each also separately driven electric motors 32 to 35, the rotor of which sits on the cylinder pin, while the stator of the transfer cylinder 4 with the frame 21 'and the stators of the forme cylinder 1; 2 and the transfer cylinder 3 are connected to the respective bearing holder, that is to say the yoke 42 (FIG. 3).
  • the cylinders are additionally supported by support elements 38 to 41 which are axially offset to the bearing bracket and by means of the working cylinders 30; 31; 31 'supported (Fig. 1 and 2).
  • the cylinders in the sleeve change position on the drive side must be supported by support elements which can also be turned on and off relative to the cylinders.
  • FIG. 4 and 5 show highly schematically in a view analogous to FIG. 1, vertical cylinder arrangements in which, in contrast to FIG. 1, the upper transfer cylinder 3 'in FIG. 4 and the upper forme cylinder 1' 'in FIG. 5 cannot be displaced is stored in the frame.
  • the invention can also be used in a three-cylinder system consisting of a form cylinder, a transfer cylinder and an impression cylinder for one-sided printing of the printing material web, two cylinders in each case having to be able to be turned on and off radially.
  • the impression cylinder can have a constant circumference regardless of the circumferentially variable sleeves of the forme and transfer cylinders.
  • the invention also enables the individual cylinders to be switched on and off as well as to compensate for different substrate thicknesses and temperature influences on the cylinder setting by means of a corresponding control of the working cylinders 30; 31; 31 'for the actuation of the carrier plates 22; 23. Also an inclined position of the forme cylinder 3; 4 as diagonal register adjustment via an adjustment of the jaws 19; 20; 19 '; 20 'by means of the working cylinder 28; 29 possible.
  • the sleeve for the respective forme cylinder 1; 1'; 1''; 2; 2 '; 2 '' can be designed as an offset or gravure printing form, whereby the conditions of the coloring typical for the respective printing process must of course be observed.
  • the printing units according to the invention enable processing of different web widths and thus a variability in the width format.
  • All movements for the carrier plates 22; 23, the jaws 19; 19 '; 20; 20 'and the equipment can be realized with the aid of a computing and storage unit, in which the target positions of the mechanisms concerned are stored and which are connected on the input side to sensors which scan the positions of the mechanisms mentioned and on the output side are connected to the drives for positioning these mechanisms.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Abstract

The press consists of a three- or four-cylinder system. The form and transfer cylinder consists of a cylindrical base body and a sleeve which can be fixed on it and changed. There are radially adjustable jaws on the same side of the cylinder to hold it in position, and support elements on the opposite side of the cylinder. The form and transfer cylinder (1-4) is variable in circumference. It can be fitted with sleeves (10-13) of different external dias. All the cylinder are separately driven by motors.

Description

Die Erfindung betrifft ein Druckwerk für indirekten Druck nach dem Oberbegriff von Anspruch 1.The invention relates to a printing unit for indirect printing according to the preamble of claim 1.

Bekannt ist es aus der DE-PS 37 15 536 C2 sowohl den Form- als auch den Übertragungszylinder als einen Zylindergrundkörper mit einem auf diesem fixierbaren Sleeve zu gestalten, der axial durch eine seitliche Öffnung des Gestells wechselbar ist, wozu auf dieser Seite des Zylinders dessen Lagerhalterung während des Betriebes dienende, radial verstellbare Backen und bei deren Abstellung auf der Gegenseite des Zylinders diesen zusätzlich abstützende Stützelemente angeordnet sind.It is known from DE-PS 37 15 536 C2 to design both the forme cylinder and the transfer cylinder as a cylinder body with a sleeve which can be fixed on it and which can be changed axially through a lateral opening in the frame, for which purpose on this side of the cylinder Bearing holder serving radially adjustable jaws during operation and when they are parked on the opposite side of the cylinder, these additional supporting elements are arranged.

Der Vorteil eines derartigen Druckwerkes gegenüber herkömmlichen Druckwerken, deren Form- und Übertragungszylinder mit Spannkanälen für die in Umfangsrichtung endlichen Druckformen bzw. Gummitücher ausgestattet sind, besteht in den in Umfangsrichtung endlosen Sleeves und der daraus resultierenden Reduzierung von Schwingungen beim Druckprozeß.The advantage of such a printing unit compared to conventional printing units, whose form and transfer cylinders are equipped with clamping channels for the printing forms or blankets, which are finite in the circumferential direction, consists in the sleeves which are endless in the circumferential direction and the resulting reduction in vibrations during the printing process.

Der Erfindung liegt die Aufgabe zugrunde, die Einsatzmöglichkeiten eines Druckwerkes für indirekten Druck gemäß dem Oberbegriff von Anspruch 1 hinsichtlich der Vielgestaltigkeit ausführbarer Druckaufträge zu verbessern. Diese Aufgabe wird durch die kennzeichnenden Merkmale von Anspruch 1 gelöst.The invention has for its object to improve the possible uses of a printing unit for indirect printing according to the preamble of claim 1 with regard to the variety of print jobs that can be carried out. This object is solved by the characterizing features of claim 1.

Die Erfindung ermöglicht den Einsatz von Sleeves mit unterschiedlichem Umfang, woraus eine Unabhängigkeit des Längenformates des Druckwerkes resultiert, während die bekannten vergleichbaren Druckwerke jeweils nur für ein Längenformat konzipiert sind.The invention enables the use of sleeves of different sizes, which results in an independence of the length format of the printing unit, while the known comparable printing units are each only designed for one length format.

Außerdem ist mit den selben erfindungsgemäßen Mitteln die Druckan- und -abstellung der Zylinder, ein Dickenausgleich für unterschiedliche Bedruckstoffe sowie die Kompensation von Temperatureinflüssen auf die Zylinderanstellung realisierbar.In addition, with the same means according to the invention, the printing on and off of the cylinders is a thickness compensation for different substrates as well as the compensation of temperature influences on the cylinder adjustment.

Die Unteransprüche enthalten günstige Ausführungsformen des Lösungsprinzipes.The sub-claims contain favorable embodiments of the solution principle.

Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert. In den zugehörigen Zeichnungen zeigen in jeweils mehr oder weniger schematischer Darstellung:

Fig. 1:
eine Ansicht der die Sleevesbeschickung ermöglichenden Seite eines erfindungsgemäßen Druckwerkes gemäß Schnitt B-B von Fig. 2
Fig. 2:
einen Querschnitt des Druckwerkes gemäß Schnitt A-A von Fig. 1
Fig. 3:
eine Ansicht der Antriebsseite des Druckwerkes gemäß Schnitt C-C von Fig. 2
Fig. 4:
ein aus zwei Form- und zwei Übertragungszylindern bestehendes Druckwerk mit einem obenliegenden radial unverstellbaren Formzylinder und radialer Verstellmöglichkeit der übrigen Zylinder in einer analogen Ansicht zu Fig. 1
Fig. 5:
ein Druckwerk mit analogem Aufbau nach Fig. 4, jedoch mit einem radial unverstellbaren obenliegenden Übertragungszylinder
The invention is explained in more detail below using an exemplary embodiment. The accompanying drawings each show a more or less schematic illustration:
Fig. 1:
3 shows a view of the side of a printing unit according to the invention that enables the sleeve loading according to section BB of FIG. 2
Fig. 2:
2 shows a cross section of the printing unit according to section AA of FIG. 1
Fig. 3:
a view of the drive side of the printing unit according to section CC of FIG. 2nd
Fig. 4:
a printing unit consisting of two forme and two transfer cylinders with an overhead radially non-adjustable forme cylinder and radial adjustment of the other cylinders in an analogous view to FIG. 1
Fig. 5:
4, but with a radially non-adjustable overhead transfer cylinder

Fig. 1 zeigt eine Seitenansicht eines in einer senkrechten Zylinderanordnung aus zwei Formzylindern 1; 2 und zwei eine Bedruckstoffbahn mit waagerechtem Bahnlauf gleichzeitig beiderseitig bedruckenden Übertragungszylindern 3; 4 bestehenden Druckwerkes.Fig. 1 shows a side view of a in a vertical cylinder arrangement of two forme cylinders 1; 2 and two a printing substrate web with a horizontal web run simultaneously printing cylinders 3 on both sides; 4 existing printing units.

Die Zylinder bestehen jeweils aus einem Zylindergrundkörper 5 bis 8 und einem auf diesem fixierbaren, axial durch eine seitliche Gestellöffnung 9 wechselbaren, in Umfangsrichtung endlosen Sleeve 10 bis 13, wobei die Sleeves 10; 13 der Formzylinder 1; 2 jeweils die endlose Druckform und die Sleeves 11; 12 der Übertragungszylinder 3; 4 jeweils ein endloses Gummituch tragen.The cylinders each consist of a basic cylinder body 5 to 8 and a sleeve 10 to 13 which can be fixed thereon and which can be changed axially through a lateral frame opening 9 and is endless in the circumferential direction, the sleeves 10; 13 the forme cylinder 1; 2 each the endless printing form and the sleeves 11; 12 the transfer cylinder 3; 4 Wear an endless blanket each.

Die Formzylinder 1; 2 und die Übertragungszylinder 3; 4 sind umfangsvariabel mit Sleeves 10 bis 13 unterschiedlichen Außendurchmessers bestückbar. Die gegenüber herkömmlichen, meist durch aus dem Zylindergrundkörper umfangsseitig austretende Druckluft unter ihrer Aufweitung auf dem Zylindergrundkörper bewegbaren Sleeves wesentlich steiferen, umfangsvariablen Sleeves 10 bis 13 der Erfindung werden nicht dargestellt günstigerweise über einen mittels Druckmittel expandierenden Umfang des Zylindergrundkörpers geklemmt, wobei das Druckmittel über einen Drehübertrager und eine Bohrung des Zylinderzapfens in einen mantelseitigen Hohlraum des Zylindergrundkörpers eingeleitet und dort dessen Mantel elastisch nach außen verformend radial wirksam wird.The forme cylinder 1; 2 and the transfer cylinder 3; 4 can be variably equipped with sleeves 10 to 13 different outer diameters. The sleeves, which are moveable on the cylinder base body under their expansion on the cylinder base body and are usually stiffer due to the circumferential compressed air emerging from the cylinder base body, are considerably stiffer in scope Sleeves 10 to 13 of the invention are not shown favorably clamped over a circumference of the cylinder base body expanding by means of pressure medium, the pressure medium being introduced into a shell-side cavity of the cylinder base body via a rotary transducer and a bore of the cylinder journal, and there the jacket of which acts radially elastically deforming outwards.

Auch ist es möglich, den Sleeve durch zusätzlich zwischen diesem und dem Zylindergrundkörper angeordnete, konische Ringspannelemente zu fixieren, die unter gegenseitiger axialer Verspannung durchmesserveränderbar sind.It is also possible to fix the sleeve by means of conical ring tensioning elements which are additionally arranged between this and the cylinder base body and which can be changed in diameter under mutual axial tensioning.

Wie Fig. 1 zu entnehmen, werden alle Zylinder auf der Sleevewechselseite durch zu dem Zylinderzapfen 14 in Führungen 15 bis 18 geradlinig radial verfahrbare, diesem während des Betriebes als Lagerhalterung dienende Backen 19; 20 gestützt.As can be seen in FIG. 1, all cylinders on the sleeve change side are displaceable in a straight line radially to the cylinder journal 14 in guides 15 to 18 and serve as a bearing holder during operation 19; 20 supported.

Bis auf den Übertragungszylinder 4, dessen Führungen 15' bis 18' für die Backen 19'; 20' auf der Außenseite des Gestells 21 mit diesem verbunden sind, sind die Führungen der anderen drei Zylinder jeweils in einer Trägerplatte 22; 23 angeordnet, die ihrerseits in Führungen 24 bis 27 des Gestells 21 senkrecht verschiebbar ist.Except for the transfer cylinder 4, the guides 15 'to 18' for the jaws 19 '; 20 'on the outside of the frame 21 connected to this, the guides of the other three cylinders are each in a support plate 22; 23 arranged, which in turn is vertically displaceable in guides 24 to 27 of the frame 21.

Sowohl an den Backen 19; 20 als auch den Trägerplatten 22; 23 greift jeweils ein, im ersteren Fall mit der Trägerplatte 22; 23 und im letzteren Fall mit dem Gestell 21 verbundener, in Verschieberichtung wirkender, druckmittelbetriebener Arbeitszylinder 28 bis 31 an.Both on the jaws 19; 20 and the carrier plates 22; 23 intervenes, in the former case with the carrier plate 22; 23 and in the latter case connected to the frame 21, acting in the direction of displacement, pressure medium operated working cylinder 28 to 31.

Der Sleevebeschickungsseite gegenüberliegend sind alle Zylinder mit einer festen Lagerhalterung ohne verstellbare Backen ausgestattet. Während die Lagerhalterung für den unteren Formzylinder 4 gestellfest ist, sind die Lagerhalterungen der anderen Zylinder jeweils als durchgehendes Joch 42 (Fig. 3) ausgeführt, das beiderseitig des Zylinderzapfens mit je einer den bereits beschriebenen Trägerplatten 22; 23 der Gegenseite gleichenden, senkrecht verschiebbaren Trägerplatte verbunden ist.Opposite the sleeve loading side, all cylinders are equipped with a fixed bearing bracket without adjustable jaws. While the bearing bracket for the lower forme cylinder 4 is fixed to the frame, the bearing brackets of the other cylinders are each designed as a continuous yoke 42 (FIG. 3) which on both sides of the cylinder journal each has one of the carrier plates 22; 23 the opposite side, vertically displaceable support plate is connected.

Wie Fig. 2 zu entnehmen, befinden sich auch auf dieser Seite die Zylinder jeweils separat antreibende Elektromotoren 32 bis 35, deren Rotor jeweils auf dem Zylinderzapfen sitzt, während der Stator des Übertragungszylinders 4 mit dem Gestell 21' und die Statoren der Formzylinder 1; 2 und des Übertragungszylinders 3 mit der jeweiligen Lagerhalterung, sprich dem Joch 42 (Fig. 3) verbunden sind.As can be seen from FIG. 2, the cylinders are each also separately driven electric motors 32 to 35, the rotor of which sits on the cylinder pin, while the stator of the transfer cylinder 4 with the frame 21 'and the stators of the forme cylinder 1; 2 and the transfer cylinder 3 are connected to the respective bearing holder, that is to say the yoke 42 (FIG. 3).

Außerdem sind die Formzylinder 1; 2 jeweils mit einem in Fig. 2 angedeuteten Zusatzantrieb 36; 37 für eine deren Seitenregisterverstellung realisierende Axialverschiebung ausgestattet.In addition, the forme cylinder 1; 2 each with an additional drive 36 indicated in FIG. 2; 37 for realizing their side register adjustment Axial displacement equipped.

Bei abgefahrenen Backen 19; 20; 19'; 20' werden im voneinander abgestelltem Zustand die Zylinder zusätzlich durch zur Lagerhalterung axial versetzte, gestellfeste Stützelemente 38 bis 41 mittels der die Verschiebung der Zylinder realisierenden Arbeitszylinder 30; 31; 31' abgestützt (Fig. 1 und 2).With worn jaws 19; 20; 19 '; 20 ', in the mutually shut-off state, the cylinders are additionally supported by support elements 38 to 41 which are axially offset to the bearing bracket and by means of the working cylinders 30; 31; 31 'supported (Fig. 1 and 2).

Bei einem erfindungsgemäßen Druckwerk mit horizontaler Zylinderanordnung und senkrechtem Bahnlauf müssen abweichend zur beschriebenen Lösung die Zylinder in der Sleevewechselposition auf der Antriebsseite durch gegenüber den Zylindern zusätzlich an- und abstellbare Stützelemente abgestützt werden.In a printing unit according to the invention with a horizontal cylinder arrangement and a vertical web run, in deviation from the solution described, the cylinders in the sleeve change position on the drive side must be supported by support elements which can also be turned on and off relative to the cylinders.

Die Fig. 4 und 5 zeigen stark schematisiert in einer zu Fig. 1 analogen Ansicht senkrechte Zylinderanordnungen, bei denen abweichend zu Fig. 1 jeweils in Fig. 4 der obere Übertragungszylinder 3' und in Fig. 5 der obere Formzylinder 1'' nicht verschiebbar im Gestell gelagert ist.4 and 5 show highly schematically in a view analogous to FIG. 1, vertical cylinder arrangements in which, in contrast to FIG. 1, the upper transfer cylinder 3 'in FIG. 4 and the upper forme cylinder 1' 'in FIG. 5 cannot be displaced is stored in the frame.

Die Erfindung ist auch bei einem aus einem Form-, einem Übertragungs- und einem Gegendruckzylinder bestehenden Dreizylindersystem für einen einseitigen Druck der Bedruckstoffbahn anwendbar, wobei jeweils zwei Zylinder radial an- und abstellbar sein müssen. Bei diesem Zylindersystem kann der Gegendruckzylinder unabhängig von den umfangsvariablen Sleeves des Form- und des Übertragungszylinders einen konstanten Umfang besitzen.The invention can also be used in a three-cylinder system consisting of a form cylinder, a transfer cylinder and an impression cylinder for one-sided printing of the printing material web, two cylinders in each case having to be able to be turned on and off radially. In this cylinder system, the impression cylinder can have a constant circumference regardless of the circumferentially variable sleeves of the forme and transfer cylinders.

Neben der Verarbeitung unterschiedlicher Längenformate mittels umfangsvariabler Sleeves ermöglicht die Erfindung auch problemlos die Druckan- und -abstellung der einzelnen Zylinder sowie den Ausgleich unterschiedlicher Bedruckstoffdicken und von Temperatureinflüssen auf die Zylinderanstellung durch eine entsprechende Steuerung der Arbeitszylinder 30; 31; 31' für die Betätigung der Trägerplatten 22; 23. Ebenfalls ist eine Schrägstellung der Formzylinder 3; 4 als Diagonalregisterverstellung über eine Verstellung der Backen 19; 20; 19'; 20' mittels der Arbeitszylinder 28; 29 möglich.In addition to the processing of different length formats using circumferentially variable sleeves, the invention also enables the individual cylinders to be switched on and off as well as to compensate for different substrate thicknesses and temperature influences on the cylinder setting by means of a corresponding control of the working cylinders 30; 31; 31 'for the actuation of the carrier plates 22; 23. Also an inclined position of the forme cylinder 3; 4 as diagonal register adjustment via an adjustment of the jaws 19; 20; 19 '; 20 'by means of the working cylinder 28; 29 possible.

Der Sleeve für den jeweiligen Formzylinder 1; 1'; 1''; 2; 2'; 2'' kann sowohl als Offset- als auch Tiefdruckform ausgeführt sein, wobei selbstverständlich die für das jeweilige Druckverfahren typischen Bedingungen der Farbgebung zu beachten sind.The sleeve for the respective forme cylinder 1; 1'; 1''; 2; 2 '; 2 '' can be designed as an offset or gravure printing form, whereby the conditions of the coloring typical for the respective printing process must of course be observed.

Außerdem ermöglichen die erfindungsgemäßen Druckwerke die Verarbeitung unterschiedlicher Bahnbreiten und damit eine Variabilität des Breitenformates.In addition, the printing units according to the invention enable processing of different web widths and thus a variability in the width format.

Anstatt der Arbeitszylinder können für die Verschiebebewegung der Backen und/oder Trägerplatten auch separat angetriebene, verzahnte bzw. mit Gewinde ausgestattete Bewegungsspindeln eingesetzt werden.Instead of the working cylinder, separately driven, toothed or threaded movement spindles can also be used for the sliding movement of the jaws and / or carrier plates.

Alle Bewegungsvorgänge für die Trägerplatten 22; 23 , die Backen 19; 19'; 20; 20' und die Besleeveung sind mit Hilfe einer Rechen- und Speichereinheit, in die die Sollpositionen der betreffenden Mechanismen eingespeichert sind und die eingangsseitig mit die Positionen der genannten Mechanismen abtastenden Meßwertgebern und ausgangsseitig mit den Antrieben zur Positionierung dieser Mechanismen in Verbindung steht, realisierbar.All movements for the carrier plates 22; 23, the jaws 19; 19 '; 20; 20 'and the equipment can be realized with the aid of a computing and storage unit, in which the target positions of the mechanisms concerned are stored and which are connected on the input side to sensors which scan the positions of the mechanisms mentioned and on the output side are connected to the drives for positioning these mechanisms.

Claims (13)

Druckwerk für indirekten Druck bestehend aus einem Form-, einem Übertragungs- und einem Gegendruckzylinder als Dreizylindersystem für den einseitigen Druck oder zwei Form- und zwei Übertragungszylindern als Vierzylindersystem für den beiderseitigen Druck einer Bedruckstoffbahn, wobei zumindest jeweils der Form- und der Übertragungszylinder aus einem Zylindergrundkörper und einem auf diesem fixierbaren Sleeve besteht, der axial durch eine seitliche Gestellöffnung wechselbar ist, wozu auf dieser Seite des Zylinders dessen Lagerhalterung während des Betriebes dienende, radial verstellbare Backen und bei deren Abstellung auf der Gegenseite des Zylinders diesen zusätzlich abstützende Stützelemente angeordnet sind, gekennzeichnet dadurch, daß jeweils der Form- und der Übertragungszylinder (1; 1; 1'' bis 4; 4'; 4'') umfangsvariabel mit Sleeves (10 bis 13) unterschiedlichen Außendurchmessers bestückbar , alle Zylinder jeweils separat motorisch angetrieben und alle Zylinder oder bis auf einen Zylinder alle Zylinder eine Achsabstandsänderung zum benachbarten Zylinder bewirkbar mit radial verstellbaren Trägerelementen für die Lagerhalterungen ausgestattet sind.Printing unit for indirect printing consisting of a form cylinder, a transfer cylinder and an impression cylinder as a three-cylinder system for single-sided printing or two form cylinders and two transfer cylinders as a four-cylinder system for mutual printing of a printing material web, with at least the form cylinder and the transfer cylinder each consisting of a basic cylinder body and there is a fixable sleeve that is axially exchangeable through a lateral frame opening, for which purpose on its side of the cylinder its bearing holder, which serves during operation, radially adjustable jaws and when they are placed on the opposite side of the cylinder, these additional supporting elements are arranged characterized in that the form cylinder and the transfer cylinder (1; 1; 1 '' to 4; 4 '; 4' ') can be equipped with sleeves (10 to 13) of different external diameters, all cylinders separately driven by motor and all cylinders or Except for one cylinder, all cylinders can be provided with a radially adjustable support element for the bearing brackets. Druckwerk nach Anspruch 1, gekennzeichnet dadurch, daß alle Zylinder fluchtend senkrecht oder waagerecht angeordnet sind.Printing unit according to claim 1, characterized in that all cylinders are arranged flush vertically or horizontally. Druckwerk nach Anspruch 1 und 2, gekennzeichnet dadurch, daß beim Dreizylinderprinzip der Gegendruckzylinder abweichbar vom Umfang des Form- und des Übertragungszylinders einen konstanten Umfang besitzt.Printing unit according to Claims 1 and 2, characterized in that, in the three-cylinder principle, the impression cylinder has a constant circumference, deviating from the circumference of the form cylinder and the transfer cylinder. Druckwerk nach Anspruch 1 bis 3, gekennzeichnet dadurch, daß das Trägerelement als eine in Führungen (24 bis 27) des Gestells (21; 21') gradlinig verschiebbare Trägerplatte (22; 23) ausgeführt ist, die im Fall der Lagerhalterung mittels geradlinig verstellbarer Backen (19; 20) für diese zusätzlich mit Führungen (15 bis 18) ausgestattet ist.Printing unit according to Claims 1 to 3, characterized in that the carrier element is designed as a carrier plate (22; 23) which can be displaced in a straight line in guides (24 to 27) of the frame (21; 21 ') and which, in the case of the bearing holder, can be adjusted by means of linearly adjustable jaws (19; 20) for this is additionally equipped with guides (15 to 18). Druckwerk nach Anspruch 1 bis 4, gekennzeichnet dadurch, daß der Zylindergrundkörper des Form- und des Übertragungszylinders (1; 1'; 1'' bis 4; 4'; 4'') mit Spannmitteln für die mit einem gleich großen Innendurchmesser, jedoch unterschiedlichem Umfang ausstattbaren, wechselbaren Sleeves (10 bis 13) ausgerüstet ist.Printing unit according to claims 1 to 4, characterized in that the cylinder base body of the form and transfer cylinder (1; 1 '; 1' 'to 4; 4'; 4 '') with clamping means for those with the same inner diameter but different Extendable sleeves (10 to 13). Druckwerk nach Anspruch 5, gekennzeichnet dadurch, daß die Spannmittel kraftschlüssig, vorzugsweise als ein elastisch verformbarer, durch ein über eine Bohrung des Zylinderzapfens in einen Hohlraum des Zylindergrundkörpers (5 bis 8) einleitbares Druckmittel expandierender Mantel des Zylindergrundkörpers (5 bis 8) oder zwischen diesem und dem Sleeve (10 bis 13) angeordnete, unter einer Durchmesseränderung axial gegenseitige verspannbare, konische Ringspannelemente ausgebildet sind.Printing unit according to claim 5, characterized in that the tensioning means non-positively, preferably as an elastically deformable, through a hole in the cylinder journal into a cavity of the Cylinder base body (5 to 8) insertable pressure medium expanding jacket of the cylinder base body (5 to 8) or between this and the sleeve (10 to 13) arranged, axially mutually braceable with a change in diameter, conical ring clamping elements. Druckwerk nach Anspruch 1 bis 6, gekennzeichnet dadurch, daß von einem Elektromotor (32 bis 35) der Rotor mit einem in einer festen Lagerhalterung gelagerten Zylinderzapfen und der Stator mit dieser Lagerhalterung verbunden ist.Printing unit according to Claims 1 to 6, characterized in that the rotor is connected by an electric motor (32 to 35) to a cylinder journal mounted in a fixed bearing holder and the stator is connected to this bearing holder. Druckwerk nach Anspruch 1 bis 7, gekennzeichnet dadurch, daß zumindest der Formzylinder (1; 1'; 1''; 2; 2'; 2'') für die Seitenregisterverstellung und alternativ zusätzlich für die Sleevepositionierung der Übertragungszylinder (3; 3'; 3''; 4; 4'; 4'') axial verschiebbar sind.Printing unit according to claims 1 to 7, characterized in that at least the forme cylinder (1; 1 '; 1' '; 2; 2'; 2 '') for the side register adjustment and alternatively additionally for the sleeve positioning of the transfer cylinder (3; 3 '; 3 ''; 4; 4 '; 4' ') are axially displaceable. Druckwerk nach Anspruch 1 bis 8, gekennzeichnet dadurch, daß alternativ die Positionen der Trägerelemente, der Sleeves (10 bis 13) und der Backen (19; 19'; 20; 20') abtastende Meßwertgeber mit einer Rechen- und Speichereinheit verbunden sind, in die die einzustellenden Sollpositionen eingespeichert sind und die ausgangsseitig mit den Antrieben zur Positionierung der Trägerelemente, Sleeves (10 bis 13) und Backen (19; 19'; 20; 20') in Verbindung steht.Printing unit according to claims 1 to 8, characterized in that alternatively the positions of the carrier elements, the sleeves (10 to 13) and the jaws (19; 19 '; 20; 20') are connected to a computing and storage unit in the set positions to be set are stored and the output side is connected to the drives for positioning the carrier elements, sleeves (10 to 13) and jaws (19; 19 '; 20; 20'). Druckwerk nach Anspruch 1 bis 9, gekennzeichnet dadurch, daß sich bei der senkrechten Zylinderanordnung jeweils der Form- und der Übertragungszylinder (1 bis 4) in der Sleevewechselposition auf der Seite der festen Lagerhalterung gegenüber dieser axial versetzt gegen ein gestellfestes Stützelement (30 bis 41) und bei der waagerechten Zylinderanordnung gegen ein anstellbares Stützelement abstützt.Printing unit according to Claims 1 to 9, characterized in that in the case of the vertical cylinder arrangement, the form cylinder and the transfer cylinder (1 to 4) in the sleeve change position on the side of the fixed bearing holder are axially offset with respect to a support element (30 to 41) fixed to the frame. and supports against an adjustable support element in the horizontal cylinder arrangement. Druckwerk nach Anspruch 1 bis 10, gekennzeichnet dadurch, daß an den geradlinig verschiebbar in den Trägerplatten (22; 23) bzw. im Gestell (21; 21') geführten Backen (19; 19'; 20; 20') und den im Gestell (21; 21') geführten Trägerplatten (22; 23) jeweils ein in deren Verschieberichtung wirkender, druckmittelbetriebener Arbeitszylinder (28 bis 31) angreift, der sich im ersteren Fall gegen die jeweilige Trägerplatte (22; 23) bzw. das Gestell (21; 21') und im letzteren Fall gegen das Gestell (21; 21') abstützt.Printing unit according to Claims 1 to 10, characterized in that the jaws (19; 19 '; 20; 20') guided in the support plates (22; 23) or in the frame (21; 21 '), which can be moved in a straight line, and those in the frame (21; 21 ') guided carrier plates (22; 23) each engage a pressure medium-operated working cylinder (28 to 31) acting in their direction of displacement, which in the former case bears against the respective carrier plate (22; 23) or the frame (21; 21 ') and in the latter case against the frame (21; 21'). Druckwerk nach Anspruch 11, gekennzeichnet dadurch, daß anstatt jeweils des Arbeitszylinders (28 bis 31) an den Trägerplatten und Backen eine separat angetriebene in Verschieberichtung wirkende Bewegungsspindel angreift.Printing unit according to Claim 11, characterized in that, instead of in each case the working cylinder (28 to 31), a separately driven movement spindle acting in the direction of displacement acts on the carrier plates and jaws. Druckwerk nach Anspruch 1 bis 12, gekennzeichnet dadurch, daß die feste Lagerhalterung der radial verstellbaren Zylinder auf der Antriebsseite jeweils als ein mit einer der Lagerung des Zylinderzapfens dienenden, mittigen Bohrung ausgestattetes Joch (42) ausgebildet ist, das beiderseitig des Zylinderzapfens mit je einer Trägerplatte verbunden ist.Printing unit according to Claims 1 to 12, characterized in that the fixed bearing holder of the radially adjustable cylinders on the drive side is in each case designed as a yoke (42) equipped with a central bore which serves to support the cylinder journal and which has a carrier plate on each side of the cylinder journal connected is.
EP96114602A 1995-09-19 1996-09-12 Printing device for indirect printing Expired - Lifetime EP0764523B2 (en)

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DE19534651 1995-09-19
DE19534651A DE19534651A1 (en) 1995-09-19 1995-09-19 Printing unit for indirect printing

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EP0867279B2 (en) † 1997-03-28 2005-11-23 Dainippon Screen Mfg. Co., Ltd. Printing apparatus
EP1009636B1 (en) * 1997-09-02 2003-05-28 Goss Graphic Systems, Inc. Variable cutoff printing press
EP1075944A1 (en) * 1999-08-10 2001-02-14 MAN Roland Druckmaschinen AG Printing machine
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US7484458B2 (en) 2001-04-09 2009-02-03 Koenig & Bauer Aktiengesellschaft Printing group including cylinders supported for movement
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EP1375137A2 (en) * 2001-04-09 2004-01-02 Koenig & Bauer Aktiengesellschaft Printing group pertaining to a printing machine and method for producing a printed product
US7707935B2 (en) 2001-04-09 2010-05-04 Koening & Bauer Aktiengesellschaft Printing group including cylinders supported for movement
EP1767359A3 (en) * 2005-09-27 2011-01-05 Koenig & Bauer Aktiengesellschaft Printing press and method for adjustment of a print-on position of a first and second cylinder
EP2006099A3 (en) * 2007-06-04 2012-02-29 Gallus Ferd. Rüesch AG Printing press
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US9062464B2 (en) 2008-09-16 2015-06-23 Awi Licensing Company Sheet goods having a large repeat length and tile with numerous patterns

Also Published As

Publication number Publication date
DE59609877D1 (en) 2003-01-02
EP0764523B1 (en) 2002-11-20
DE19534651A1 (en) 1997-03-20
EP0764523B2 (en) 2006-03-22

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