EP0764523B1 - Printing device for indirect printing - Google Patents

Printing device for indirect printing Download PDF

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Publication number
EP0764523B1
EP0764523B1 EP96114602A EP96114602A EP0764523B1 EP 0764523 B1 EP0764523 B1 EP 0764523B1 EP 96114602 A EP96114602 A EP 96114602A EP 96114602 A EP96114602 A EP 96114602A EP 0764523 B1 EP0764523 B1 EP 0764523B1
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EP
European Patent Office
Prior art keywords
cylinder
group according
printing
printing group
cylinders
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Expired - Lifetime
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EP96114602A
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German (de)
French (fr)
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EP0764523B2 (en
EP0764523A1 (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 the uses of a Printing unit for indirect printing according to the preamble of claim 1 to improve the variety of executable print jobs. This object is achieved by the characterizing features of claim 1 solved.
  • the invention enables the use of sleeves with different Scope, from which an independence of the length format of the printing unit results, while the known comparable printing units only for a length format are designed.
  • Fig. 1 shows a side view of a in a vertical cylinder arrangement from two forme cylinders 1; 2 and two a substrate with a horizontal Web run simultaneously transfer cylinders printing on both sides 3; 4 existing printing units.
  • the cylinders each consist of a cylinder body 5 to 8 and one that can be fixed on it axially through a lateral frame opening 9 changeable, in the circumferential direction endless sleeve 10 to 13, the Sleeves 10; 13 the forme cylinder 1; 2 the endless printing form and the Sleeves 11; 12 the transfer cylinder 3; 4 an endless blanket each wear.
  • the forme cylinder 1; 2 and the transfer cylinder 3; 4 are variable in scope Can be equipped with sleeves of 10 to 13 different outer diameters. Compared to conventional ones, mostly from the cylinder body Compressed air escaping on the circumference under its expansion on the Cylinder base body sleeves much stiffer, circumferentially variable Sleeves 10 to 13 of the invention are conveniently not shown over a circumference of the cylinder base body expanding by means of pressure medium clamped, the pressure medium via a rotary transformer and a bore of the cylinder pin in a shell-side cavity of the Initiated cylinder body and there its jacket elastic externally deforming becomes radially effective.
  • Both on the jaws 19; 20 and the carrier plates 22; 23 takes hold one each, 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 cylinders 28 to 31.
  • the sleeve loading side are all cylinders with one fixed bearing bracket without adjustable jaws. While the Bearing bracket for the lower forme cylinder 4 is fixed to the frame Bearing brackets of the other cylinders each as a continuous yoke 42 (Fig. 3) executed on both sides of the cylinder pin with one each already described carrier plates 22; 23 similar to the opposite side, vertically displaceable carrier plate is connected.
  • the cylinders are also on this side each separately driving electric motors 32 to 35, the rotor of each sits on the cylinder journal while the stator of the transfer cylinder 4 with the frame 21 'and the stators of the forme cylinder 1; 2 and des Transfer cylinder 3 with the respective bearing bracket, i.e. the yoke 42 (Fig. 3) are connected.
  • FIG. 4 and 5 show a highly schematic in an analog to Fig. 1 View of vertical cylinder arrangements, which deviate from fig. 1 in each case in FIG. 4 the upper transfer cylinder 3 'and in FIG. 5 the upper one Forme cylinder 1 "is not slidably mounted in the frame.
  • the invention is also one of a form, a transfer and an impression cylinder existing three-cylinder system for a one-sided Printing of the printing material web applicable, two cylinders each must be able to be turned on and off radially.
  • the Impression cylinder independent of the sleeves of the circumference Form and the transfer cylinder have a constant scope.
  • the invention also enables sleeves to be and shutdown of the individual cylinders and the compensation of different ones Substrate thicknesses and temperature influences on the cylinder adjustment by appropriate control of the working cylinder 30; 31; 31 'for the actuation of the carrier plates 22; 23. Also is an oblique position the forme cylinder 3; 4 as diagonal register adjustment via a 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 both be designed as offset as well as gravure form, of course the color conditions typical of the respective printing process are to be observed.
  • the printing units according to the invention enable processing different web widths and thus a variability of the width format.

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

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 gestatten, 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 both the shape and the Transfer cylinder as a cylinder body with one on top of it to allow fixable sleeve, which is axially through a lateral opening of the Frame is interchangeable, which is why on this side of the cylinder its bearing bracket radially adjustable jaws serving during operation and when they are parked on the opposite side of the cylinder, this is additionally supporting support 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 over conventional printing units, whose form and transfer cylinders with clamping channels for the in Finite printing plates or blankets equipped are in the circumferential direction sleeves and the endless resulting reduction of vibrations in 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 the uses of a Printing unit for indirect printing according to the preamble of claim 1 to improve the variety of executable print jobs. This object is achieved by the characterizing features of claim 1 solved.

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 with different Scope, from which an independence of the length format of the printing unit results, while the known comparable printing units only for a length format are designed.

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 pressure on and - cylinder shutdown, thickness compensation for different substrates as well as the compensation of temperature influences on the Cylinder adjustment possible.

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 untenliegenden 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 cylinders and two transfer cylinders with a radially unadjustable forme cylinder underneath and the possibility of 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 from two forme cylinders 1; 2 and two a substrate with a horizontal Web run simultaneously transfer cylinders printing on both sides 3; 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 cylinder body 5 to 8 and one that can be fixed on it axially through a lateral frame opening 9 changeable, in the circumferential direction endless sleeve 10 to 13, the Sleeves 10; 13 the forme cylinder 1; 2 the endless printing form and the Sleeves 11; 12 the transfer cylinder 3; 4 an endless blanket each wear.

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 are variable in scope Can be equipped with sleeves of 10 to 13 different outer diameters. Compared to conventional ones, mostly from the cylinder body Compressed air escaping on the circumference under its expansion on the Cylinder base body sleeves much stiffer, circumferentially variable Sleeves 10 to 13 of the invention are conveniently not shown over a circumference of the cylinder base body expanding by means of pressure medium clamped, the pressure medium via a rotary transformer and a bore of the cylinder pin in a shell-side cavity of the Initiated cylinder body and there its jacket elastic externally deforming becomes radially effective.

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 add the sleeve between this and the To fix the conical ring clamping elements arranged on the cylinder body, which are changeable in diameter under mutual axial bracing.

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 the cylinders are on the sleeve alternate side by straight to the cylinder journal 14 in guides 15 to 18 radially movable, which serves as a bearing holder during operation Jaws 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 'connected to the outside of the frame 21 the guides of the other three cylinders are each in a carrier plate 22; 23 arranged, which in turn in guides 24 to 27 of the frame 21 is vertically displaceable.

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 takes hold one each, 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 cylinders 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 are all cylinders with one fixed bearing bracket without adjustable jaws. While the Bearing bracket for the lower forme cylinder 4 is fixed to the frame Bearing brackets of the other cylinders each as a continuous yoke 42 (Fig. 3) executed on both sides of the cylinder pin with one each already described carrier plates 22; 23 similar to the opposite side, vertically displaceable carrier 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 in FIG. 2, the cylinders are also on this side each separately driving electric motors 32 to 35, the rotor of each sits on the cylinder journal while the stator of the transfer cylinder 4 with the frame 21 'and the stators of the forme cylinder 1; 2 and des Transfer cylinder 3 with the respective bearing bracket, i.e. the yoke 42 (Fig. 3) are connected.

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 one indicated in FIG. 2 Auxiliary drive 36; 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 'are parked apart Condition of the cylinders in addition by axially offset to the bearing bracket, frame-fixed support elements 38 to 41 by means of the displacement of the Cylinder realizing cylinder 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 vertical web run must deviate from that described Release the cylinders in the sleeve change position on the drive side thanks to additional support elements that can be turned on and off compared to the cylinders be supported.

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 a highly schematic in an analog to Fig. 1 View of vertical cylinder arrangements, which deviate from fig. 1 in each case in FIG. 4 the upper transfer cylinder 3 'and in FIG. 5 the upper one Forme cylinder 1 "is not slidably mounted 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 is also one of a form, a transfer and an impression cylinder existing three-cylinder system for a one-sided Printing of the printing material web applicable, two cylinders each must be able to be turned on and off radially. With this cylinder system, the Impression cylinder independent of the sleeves of the circumference Form and the transfer cylinder have a constant scope.

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 processing different length formats by means of a variable scope The invention also enables sleeves to be and shutdown of the individual cylinders and the compensation of different ones Substrate thicknesses and temperature influences on the cylinder adjustment by appropriate control of the working cylinder 30; 31; 31 'for the actuation of the carrier plates 22; 23. Also is an oblique position the forme cylinder 3; 4 as diagonal register adjustment via a 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 both be designed as offset as well as gravure form, of course the color conditions typical of the respective printing process are to 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 different web widths and thus a variability of 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 you can move the jaws and / or carrier plates also separately driven, toothed or with Threaded movement spindles are used.

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 are with the help of a computing and storage unit, in which the target positions of the mechanisms concerned are stored are and the input side with the positions of the mechanisms mentioned scanning sensors and on the output side with the drives for Positioning of these mechanisms is related, realizable.

Claims (13)

  1. Printing group for indirect printing, comprising a forme cylinder, a transfer cylinder and an impression cylinder as a three-cylinder system for single-sided printing, or two forme cylinders and two transfer cylinders as a four-cylinder system for double-sided printing of a printing-material web, wherein at least the forme cylinder and the transfer cylinder each comprise a basic cylinder body and a sleeve that can be fixed on it and that can be interchanged axially through a lateral frame opening, for which purpose there are disposed on this side of the cylinder radially adjustable jaws that serve as a bearing mounting for it during operation and there are disposed on the opposite side of the cylinder support elements that additionally support it while thrown-off, characterized in that the forme cylinder and the transfer cylinder (1; 1'; 1" to 4; 4'; 4") can each be fitted with sleeves (10 to 13) of different external diameter in a circumferentially variable manner, all the cylinders are separately motor-driven and all the cylinders or all the cylinders except one are fitted with radially adjustable carrier elements for the bearing mountings in a manner capable of effecting a change in the axial spacing from the adjacent cylinder and in that required positions to be set are stored in an arithmetic and memory unit, wherein the arithmetic and memory unit is connected to drives for positioning the carrier elements (22, 23).
  2. Printing group according to Claim 1, characterized in that all the cylinders are disposed in a vertically or horizontally aligned manner.
  3. Printing group according to Claims 1 and 2, characterized in that, in the case of the three-cylinder principle, the impression cylinder, as distinct from the circumference of the forme cylinder and of the transfer cylinder, has a constant circumference.
  4. Printing group according to Claims 1 to 3, characterized in that the carrier element is designed as a carrier plate (22; 23) that is linearly displaceable in guides (24 to 27) of the frame (21, 21') and that, in the case of bearing mounting by means of linearly adjustable jaws (19; 20), is additionally fitted with guides (15 to 18).
  5. Printing group according to Claims 1 to 4, characterized in that the basic cylinder body of the forme cylinder and of the transfer cylinder (1; 1'; 1" to 4; 4'; 4") is equipped with clamping means for the interchangeable sleeves (10 to 13) that can be provided with an equally large internal diameter, but a different circumference.
  6. Printing group according to Claim 5, characterized in that the clamping means are designed preferably as an elastically deformable jacket of the basic cylinder body (5 to 8) that is expanded in a force-locked manner by a pressure medium introducible via a bore in the cylinder journal into a cavity in the basic cylinder body (5 to 8), or as conical annular clamping elements disposed between said basic cylinder body and the sleeve (10 to 13) and capable of being urged against each other axially with a change in diameter.
  7. Printing group according to Claims 1 to 6, characterized in that in an electric motor (32 to 35) the rotor is joined to a cylinder journal mounted in a fixed bearing mounting and the stator is joined to said bearing mounting.
  8. Printing group according to Claims 1 to 7, characterized in that at least the forme cylinder (1; 1'; 1"; 2; 2'; 2") for lateral register adjustment is axially displaceable and, alternatively, the transfer cylinder (3; 3'; 3", 4; 4'; 4") is additionally axially displaceable for the sleeve positioning.
  9. Printing group according to Claims 1 to 8, characterized in that, alternatively, measurement-sensing devices that scan the positions of the carrier elements, the sleeves (10 to 13) and the jaws (19; 19'; 20; 20') are connected to an arithmetic and memory unit in which the required positions to be set are stored and whose output is connected to the drives for positioning the carrier elements, sleeves (10 to 13) and jaws (19; 19'; 20; 20').
  10. Printing group according to Claims 1 to 9, characterized in that, in the case of a vertical cylinder arrangement, the forme cylinder and the transfer cylinder (1 to 4) each bear, in the sleeve interchange position on the side of the fixed bearing mounting, against a frame-fixed supporting element (38 to 41) in an axially offset manner with respect to said fixed bearing mounting and, in the case of the horizontal cylinder arrangement, bear against a supporting element capable of being thrown in.
  11. Printing group according to Claims 1 to 10, characterized in that a pressure-medium-operated working cylinder (28 to 31) that acts in the displacement direction of the carrier plates (22; 23) and that bears in the former case against the respective carrier plate (22; 23) or the frame (21; 21') and in the latter case against the frame (21; 21') engages in each case on the linearly displaceable carrier elements designed as carrier plates (22; 23) or jaws (19; 19'; 20; 20') guided in the frame (21; 21') and the carrier plates (22; 23) guided in the frame (21; 21').
  12. Printing group according to Claim 11, characterized in that, instead of the respective working cylinder (28 to 31), a separately driven translation spindle acting in the displacement direction engages at the carrier plates and jaws.
  13. Printing group according to Claims 1 to 12, characterized in that the fixed bearing mounting of the radially adjustable cylinders is designed on the drive side in each case as a yoke (42) that is fitted with a central bore that serves as the bearing of the cylinder journal, which yoke is joined on both sides of the cylinder journal to one carrier plate in each case.
EP96114602A 1995-09-19 1996-09-12 Printing device for indirect printing Expired - Lifetime EP0764523B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19534651A DE19534651A1 (en) 1995-09-19 1995-09-19 Printing unit for indirect printing
DE19534651 1995-09-19

Publications (3)

Publication Number Publication Date
EP0764523A1 EP0764523A1 (en) 1997-03-26
EP0764523B1 true EP0764523B1 (en) 2002-11-20
EP0764523B2 EP0764523B2 (en) 2006-03-22

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EP96114602A Expired - Lifetime EP0764523B2 (en) 1995-09-19 1996-09-12 Printing device for indirect printing

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DE59609877D1 (en) 2003-01-02
DE19534651A1 (en) 1997-03-20
EP0764523A1 (en) 1997-03-26

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