EP1286835B1 - Combined printing machine - Google Patents

Combined printing machine Download PDF

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Publication number
EP1286835B1
EP1286835B1 EP01929608A EP01929608A EP1286835B1 EP 1286835 B1 EP1286835 B1 EP 1286835B1 EP 01929608 A EP01929608 A EP 01929608A EP 01929608 A EP01929608 A EP 01929608A EP 1286835 B1 EP1286835 B1 EP 1286835B1
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EP
European Patent Office
Prior art keywords
printing
printing support
support
transport conveyor
machine according
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
EP01929608A
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German (de)
French (fr)
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EP1286835A1 (en
Inventor
Josef Schneider
Peer Dilling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication of EP1286835A1 publication Critical patent/EP1286835A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • the aim of the invention is to provide a variable transport device that can be used in a variety of printing machines. Furthermore, there should be provided a holding device for the substrates, which always allow the same conditions for their transport.
  • the object of the invention is therefore to provide a machine configuration with a flexible and improved transport device for substrates of any kind and in particular a straight-line sheet transport without the use of grippers in a device according to the preamble of patent claim 1.
  • the solution of the problem is designed according to the characterizing feature of claim 1.
  • the machine configuration allows the transport of a wide variety of substrates on the form, size and material composition.
  • substrates are preferably provided as holding means for sheet-shaped substrates renewable holding areas on a conveyor belt. This ensures that the same conditions are always maintained for all sheets to be transported via a print job.
  • electrostatic charges must be introduced.
  • this device is suitable for a wide variety of types of substrates.
  • Advantageous embodiments are described in the subclaims that retaining means in the form of adhesive films, fusible adhesive areas, variably attachable adhesive strips, offset pressing devices, Aufwalzvorraumen or clocked roller transports are provided.
  • FIG. 1 shows a web-fed rotary printing press with a plurality of printing units 1 to 4, which has as its basic configuration an impression cylinder 7, a blanket cylinder 6 and a forme cylinder 5.
  • the printing substrate 8 is fed from a feed roller 10 respectively to the impression cylinder 7 of the printing unit 1, printed there by means of the blanket cylinder 6 and fed via a guide roller 20 to the next printing unit 2.
  • the same procedure continues until all the printed images of the printing units 1 to 4 have been applied.
  • the printing material web 8 is fed to a take-off roll 11 and wound there again.
  • the printing machine described is therefore an offset printing machine. However, it has, according to Figure 1, no so-called rubber-to-rubber printing units, but each printing unit.
  • each impression cylinder 7 serves only the pressing of the printing material against the image-emitting cylinder, here the blanket cylinder 6.
  • the printing cylinders 7 have a smaller diameter than the blanket cylinders 6 and the forme cylinders 5. This is possible because each impression cylinder 7 has a purely supporting function.
  • the registration of the printed images of the various printing units 1 to 4 to one another can be carried out by means of the deflection rollers 20 or other devices, for example so-called web tensioning devices.
  • FIG. 2 shows a printing machine of the same basic configuration as in FIG.
  • a per se known conveyor belt 40 is guided for printing materials.
  • the path of the conveyor belt 40 is flat and passes through the printing zones of all printing units 1 to 4 between the respective blanket cylinders 6 and the counter-pressure cylinders 7 therethrough.
  • both printing material webs and printing material sheets can be placed.
  • Substrate sheets are fed to the printing unit 1 by means of a sheet feeder 30 from a plant stack from a docking station 41 the conveyor belt 40, removed at a delivery station 48 from the conveyor belt 40 and stored in a sheet delivery arm 31 on a delivery pile.
  • the printing material sheets are held by suitable means on the conveyor belt 40 while they pass through the printing zones of the printing units 1 to 4.
  • the same can be provided in a similar way for substrates.
  • the printing of a printing material web By means of single-acting printing units, as in the example shown, can provoke problems in the Beyakstoff arrangement because the substrate adheres in the print zone only on one side of a colored cylinder. Appropriate guidance on the conveyor belt 40 solves this problem in a simple manner.
  • Fig. 2 for this purpose the holder of the printing material on the conveyor belt 40 is described by means of retaining bands 42.
  • a parallel guidance of conveyor belt 40 and retaining straps 42 is provided in the region of the printing material throughput.
  • the straps 42 are returned above the printing units 1 to 4 in a closed system.
  • clamping devices 43 may be provided.
  • the printing substrate is transported by the fact that at the beginning of the conveyor belt 40 is provided in the vertical direction a clocked catching roll for the retaining bands 42.
  • an inlet gap 44 for the substrate to be transported can be produced at the application station 41, so that the printing material can be controlled and adjusted between the retaining bands 42 and the conveyor belt 40.
  • the holding straps 42 can be lowered and consequently grasp the printing material, so that it is held on the conveyor belt 40 in a friction-locked manner and taken along by it.
  • the holding band or the retaining bands 42 may be in the form of magnetic bands. These work together with a corresponding counter surface on conveyor belts 40. As a result, a solid stiction between the substrate and the conveyor belt 40 is achieved.
  • the printing material is fixed on the conveyor belt 40 and can be on the straight or even Transport route through the printing units 1 to 4 are performed safely.
  • a station 46 is provided. This can be designed as a measuring and / or alignment device 46 or as an electrostatic device. There, the substrate can be detected in its position, aligned or provided with electrostatic charge or exempt from electrostatic charge. All measures support proper pressure.
  • FIG. 5 a plan view of the transport path of the printing material sheet 50 through such a printing press is shown, fittingly in accordance with the illustration according to FIG.
  • the straps 42 lay on the side of the printing material 50 on the side.
  • the printing material sheets 50 are held in print-free edges 47, while the printed areas in the middle of the printing material sheets 50 are not covered.
  • Also conceivable is the use of retaining straps 42 in the middle of the transport path, when unprinted areas are provided in the printed matter at this point.
  • FIG. 3 shows a printing machine of the same basic configuration as in FIG.
  • special conveyor belts 40 are provided, against which pressure rollers 60 are shown.
  • the printing material is rolled in this case by means of the pressure rollers 60 on the conveyor belt 40 and fixed in this way there.
  • the holding force of the conveyor belt 40 against the printing material can be made low.
  • different materials for the conveyor belts 40 may be in disposition.
  • the pressure rollers 60 cooperate with a fixed counter-surface 61 and serve to squeeze existing between the substrate and the conveyor belt 40 air. at the use of film-like materials it is sufficient to provide an equally smooth conveyor belt 40 in the rule.
  • the printing material to secure the adhesion to the conveyor belt 40 between the printing units 1 to 4 by means of further pressure rollers 62 can be pressed in the correct position on the conveyor belt 40.
  • the provided below the conveyor belt 40 guide surfaces 61 serve the smooth support of the printing material.
  • the pressure rollers 62 should be provided with a color-repellent surface.
  • 62 dry substances can be introduced into the printed image applied to the substrate via the pressure rollers.
  • FIG. 4 shows a further printing press of the same basic configuration according to FIG.
  • the printing material is held on the conveyor belt 40 by means of an air flow.
  • a pneumatic Pressing device 70 is provided before entering the printing material in the printing zone of the first printing unit 1 .
  • the pneumatic pressure device 70 should achieve the highest possible contact force.
  • the pneumatic pressure device 70 sweeps the substrate from the center to the outside.
  • pneumatic pressure devices 71, 72 and 73 are provided.
  • the optionally reduced adhesion force in the pressure zones can be renewed.
  • an intermediate drying of the printed images can be achieved by means of the pneumatic pressure devices 71 to 73.
  • the adhesion of the printing material on the conveyor belt 40 can be supported by additional means such as a releasable adhesive.
  • a releasable adhesive In this context, it may be provided here to represent a station for connecting the printing substrate to the conveyor belt 40 in the area of the supply of printing material sheet, that areas provided with an adhesive bond are provided in the conveyor belt 40. These areas can be used to transfer the substrate be fused by means of a heating station on its surface, whereby the substrate can then adhere particularly well and firmly.
  • the delivery of the printing material on the outlet side is made possible by reheating the adhesive areas.
  • An alternative and cost-effective use of known adhesive strips, from which, for example, paper-like printing material can easily be peeled off, is time-dependent variable and not easily renewable.
  • the possibility of melting adhesive or adhesive areas provides the substrate transport always new the same adhesion conditions.
  • the devices shown it is possible in a printing machine whose configuration is suitable for web-fed printing, also to process sheet-shaped substrates.
  • the variants for adhering the printing substrate to the conveyor belt 40 are all advantageous in that they always attest to the same conditions of adhesion.
  • renewal of the adhesion conditions is not readily possible.
  • such procedures are not suitable for certain printing processes, such as wet offset printing.
  • the renewability of the detention conditions is such that, for example, the adhesive films can be cleaned continuously and are thus free of paper dust.
  • the fusible adhesive furthermore always provides the same adhesion conditions.
  • the pressure rollers 60, 62 or the pneumatic pressure devices 70 to 73 the adhesion of the printing material can be constantly monitored and sustainably improved.
  • the described printing machine offers application possibilities for the currently known printing methods.
  • the restriction to conventional offset printing should not apply here.
  • the type of printing substrate transport is not limited to the printing method of known type. All processes can be applied from planographic printing through gravure printing to high pressure. Both direct and indirect printing methods can be used.
  • so-called digital printing methods can be used, in which printing forms are created in the machine.
  • inking methods are applicable in the printing machine, wherein the orientation must be made to the required print quality. Therefore, inking methods from the area of sheetfed printing can be used as well as from the field of webfed printing. Particularly in digital printing machines, the use of special toner-based inking methods, both in dry and liquid form, is conceivable and possible.
  • the printing machine can also be designed according to current design principles, the use of sleeve-shaped printing plates or blankets or other cylinder clothing in question.
  • printing processes can be controlled with not completely occupied form cylinder so that the substrate web is nevertheless printed in full length.
  • the printing material can be easily moved in steps. While the form cylinder rotate uniformly, the conveyor belt is only moved when a print image is to be transferred. If the peripheral parts of the forme cylinders, which are not covered by printed images, circulate, the conveyor belt is stopped. Thus, there can be no gap between the printed images, which would unnecessarily increase the consumption of substrate.
  • Such a procedure is possible in particular in the context of the described printing press with a conveyor belt. By placing the printing material on the conveyor belt, the printing material can be very well managed and controlled almost anywhere.
  • the register accuracy of the prints in the individual printing units always remains secure because the conveyor belt leads the printing material web.
  • the auxiliaries already described for producing a transport connection of the printing substrate with the conveyor belt can also be used, as in the case of an arcuate printing substrate

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Pinball Game Machines (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Rotary Presses (AREA)
  • Ink Jet (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Printing Methods (AREA)
  • Printers Characterized By Their Purpose (AREA)

Abstract

A printing machine for multicolor printing which includes a plurality of printing units and a system for transporting and guiding either sheet-type or web-type printable matter through the printing units. The guiding system includes means, such as adhesive, contact pressure, or retaining belts, for maintaining the printable matter on a transfer belt in proper registry during transfer through the successive printing units.

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a device according to the preamble of patent claim 1.

[Stand der Technik][State of the art]

Es ist bekannt in Druckmaschinen verschiedener Druckverfahren Transportmittel für Bogen vorzusehen, die einen geradlinigen Transport von zu bedruckenden Substraten durch Druckwerke von einem Anleger zu einem Ausleger ermöglichen. Hierbei sind teilweise Verfahren bzw. Vorrichtung verwendet worden, die Greifer beinhalten. Weiterhin sind aber auch Verfahren bzw. Vorrichtungen verwendet worden, in denen geradlinig durch die Druckwerke geführte Transportbänder zum Transport des bogenförmigen Materials verwendet werden.It is known in printing presses of various printing processes to provide transport means for sheets which enable a straight-line transport of substrates to be printed by printing units from a feeder to a delivery. In this case, some methods or apparatus have been used, which include grippers. Furthermore, however, methods and devices have also been used in which conveyors conveyed in a straight line through the printing units are used to transport the sheet-like material.

Aus der DE 19527264 A1 ist eine Druckmaschine mit geradliniger Substratführung bekannt. Hierbei sollen der Transportweg der Substrate von Anlegerstapel zu den Transportmitteln geradlinig in der Ebene des Transportweges der Druckwerke liegen. Vorgesehen ist ein Transportband das die Substrate z.B. durch Reibschluß zwischen den Zylindern der Druckwerke transportiert. Über die registergerechte Halterung der Bogen auf dem Transportband ist nichts ausgesagt.From the DE 19527264 A1 is a printing machine with rectilinear substrate guide known. In this case, the transport path of the substrates of feeder stack to the transport means should lie in a straight line in the plane of the transport path of the printing units. Provided is a conveyor belt which transports the substrates, for example by friction between the cylinders of the printing units. Nothing is stated about the registration of the sheets on the conveyor belt.

Aus der DE 19921271 A1 ist ein Verfahren zum Fördern von Bogen in einer Druckmaschine sowie einer Vorrichtung zur Durchführung des Verfahrens bekannt. Hierbei wird vorgesehen auf den bogenführenden Elementen, anstatt von Greifern mit Klebstoff belegte Bereiche vorzusehen die ein lagesicheres Führen der Bogen ermöglichen. Hierbei ist ebenfalls eine Druckmaschine beschrieben, die den geradlinigen Transport von Bedruckstoffen mittels eines Transportbandes ermöglicht. In dieser Veröffentlichung wird darauf hingewiesen, dass ein Halten des Bogens mittels elektrostatischer Ladungen nicht ausreichend für den Transport der Bogen sei.From the DE 19921271 A1 a method for conveying sheets in a printing machine and an apparatus for performing the method is known. This is provided on the sheet-guiding elements, instead of provided by grippers with adhesive areas to allow a secure position guiding the bow. Here, a printing machine is also described, which allows the straight-line transport of substrates by means of a conveyor belt. It is noted in this publication that holding the sheet by means of electrostatic charges is not sufficient for transporting the sheets.

Weiterhin beschreiben die FR-A-2 585 287 und die DE-C-587513 jeweils eine Druckmaschine nach dem Oberbegriff des Patentanspruchs 1.Furthermore, the describe FR-A-2 585 287 and the DE-C-587513 in each case a printing press according to the preamble of patent claim 1.

Ziel der Erfindung ist es eine variable Transportvorrichtung vorzusehen, die in vielfältigen Druckmaschinen einsetzbar ist. Weiterhin soll dort eine Haltevorrichtung für die Bedruckstoffe vorgesehen sein, die stets gleiche Bedingungen für deren Transport ermöglichen.The aim of the invention is to provide a variable transport device that can be used in a variety of printing machines. Furthermore, there should be provided a holding device for the substrates, which always allow the same conditions for their transport.

[Aufgabe der Erfindung]OBJECT OF THE INVENTION

Aufgabe der Erfindung ist es daher in einer Vorrichtung nach dem Oberbegriff des Patentanspruchs 1 eine Maschinenkonfiguration mit einer flexiblen und verbesserten Transportvorrichtung für Bedruckstoffe jeder Art und insbesondere einem geradlinigen Bogentransport ohne Verwendung von Greifern vorzusehen.The object of the invention is therefore to provide a machine configuration with a flexible and improved transport device for substrates of any kind and in particular a straight-line sheet transport without the use of grippers in a device according to the preamble of patent claim 1.

Die Lösung der Aufgabe gestaltet sich nach dem kennzeichnenden Merkmal des Patentanspruchs 1. Die Maschinenkonfiguration erlaubt den Transport verschiedenster Bedruckstoffe nach Form, Größe und Werkstoffzusammensetzung. Hierbei sind als Haltemittel für bogenförmige Bedruckstoffe vorzugsweise erneuerbare Haltebereiche auf einem Transportband vorgesehen. Damit wird ermöglicht, dass stets gleiche Bedingungen für alle über einen Druckauftrag an zu transportierenden Bogen erhalten bleiben. Darüber hinaus wird vermieden, dass elektrostatische Ladungen eingebracht werden müssen. Weiterhin ist diese Vorrichtung für verschiedenste Arten von Bedruckstoffen geeignet. Vorteilhafte Ausgestaltungen werden in den Unteransprüchen dahingehend beschrieben, dass Haltemittel in Form von Adhäsionsfolien, anschmelzbaren Klebebereichen, variabel aufsetzbaren Adhäsionsstreifen, Offsetpressvorrichtungen, Aufwalzvorrichtungen oder getaktete Rollentransporte vorgesehen sind.The solution of the problem is designed according to the characterizing feature of claim 1. The machine configuration allows the transport of a wide variety of substrates on the form, size and material composition. Here are preferably provided as holding means for sheet-shaped substrates renewable holding areas on a conveyor belt. This ensures that the same conditions are always maintained for all sheets to be transported via a print job. In addition, it is avoided that electrostatic charges must be introduced. Furthermore, this device is suitable for a wide variety of types of substrates. Advantageous embodiments are described in the subclaims that retaining means in the form of adhesive films, fusible adhesive areas, variably attachable adhesive strips, offset pressing devices, Aufwalzvorrichtungen or clocked roller transports are provided.

[Beispiele][Examples]

Die Erfindung wird-im folgenden Anhang von zeichnerischen Darstellungen im Einzelnen erläutert.The invention will be explained in more detail in the following appendix of drawings.

Hierbei zeigen

Figur 1
eine Rollenrotationsdruckmaschine in Standardkonfiguration,
Figur 2
eine Druckmaschine gleicher Konfiguration mit einem Transportband und Haltebändern,
Figur 3
eine Druckmaschine gleicher Konfiguration mit Transportband und Anpresswalzen,
Figur 4
eine Druckmaschine gleicher Konfiguration mit Transportband und Luftanpressvorrichtung, und
Figur 5
eine Druckmaschine nach Figur 2 in Draufsicht.
Show here
FIG. 1
a web-fed rotary printing press in standard configuration,
FIG. 2
a printing press of the same configuration with a conveyor belt and holding straps,
FIG. 3
a printing press of the same configuration with conveyor belt and pressure rollers,
FIG. 4
a printing press of the same configuration with conveyor belt and Luftanpressvorrichtung, and
FIG. 5
a printing machine according to Figure 2 in plan view.

In Figur 1 ist eine Rollenrotationsdruckmaschine mit mehreren Druckwerken 1 bis 4 dargestellt, die als Grundkonfiguration einen Gegendruckzylinder 7, einen Drucktuchzylinder 6 und einen Formzylinder 5 aufweist. Die Bedruckstoffbahn 8 wird von einer Zufuhrrolle 10 jeweils dem Gegendruckzylinder 7 des Druckwerkes 1 zugeführt, dort mittels des Drucktuchzylinders 6 bedruckt und über eine Umlenkwalze 20 dem nächsten Druckwerk 2 zugeführt. In gleicher Weise wird weiter verfahren bis alle Druckbilder der Druckwerke 1 bis.4 aufgebracht wurden. Im vorliegenden Fall wird die Bedruckstoffbahn 8 einer Abnahmerolle 11 zugeführt und dort wieder aufgewickelt. Die beschriebene Druckmaschine ist also eine Offsetdruckmaschine. Sie weist nach Figur 1 allerdings keine sogenannten Gummi-gegen-Gummi-Druckwerke auf, sondern jedes Druckwerk 1 bis 4 ist jeweils mit einem Gegendruckzylinder 7 versehen, der lediglich dem Anpressen des Bedruckstoffes gegen den bildabgebenden Zylinder, hier den Drucktuchzylinder 6, dient. Eine derartig einfache Konstellation einer Rollenrotationsdruckmaschine ist bisher nicht bekannt geworden, da normalerweise immer die Druckwerke 1 bis 4 für den zweiseitigen Druck ausgerüstet sind. Die Druckzylinder 7 weisen der Einfachheit halber einen kleineren Durchmesser auf als die Drucktuchzylinder 6 und die Formzylinder 5. Dies ist möglich, da jeder Gegendruckzylinder 7 eine rein stützende Funktion hat. Die Registerung der Druckbilder der verschiedenen Druckwerke 1 bis 4 zueinander kann mittels der Umlenkwalzen 20 oder sonstiger Vorrichtungen, z.B. sogenannter Bahnspannungseinrichtungen, durchgeführt werden.FIG. 1 shows a web-fed rotary printing press with a plurality of printing units 1 to 4, which has as its basic configuration an impression cylinder 7, a blanket cylinder 6 and a forme cylinder 5. The printing substrate 8 is fed from a feed roller 10 respectively to the impression cylinder 7 of the printing unit 1, printed there by means of the blanket cylinder 6 and fed via a guide roller 20 to the next printing unit 2. The same procedure continues until all the printed images of the printing units 1 to 4 have been applied. In the present case, the printing material web 8 is fed to a take-off roll 11 and wound there again. The printing machine described is therefore an offset printing machine. However, it has, according to Figure 1, no so-called rubber-to-rubber printing units, but each printing unit. 1 to 4 is in each case provided with an impression cylinder 7, which serves only the pressing of the printing material against the image-emitting cylinder, here the blanket cylinder 6. Such a simple constellation of a web-fed rotary printing press has hitherto not become known, since normally the printing units 1 to 4 are always equipped for two-sided printing. For simplicity, the printing cylinders 7 have a smaller diameter than the blanket cylinders 6 and the forme cylinders 5. This is possible because each impression cylinder 7 has a purely supporting function. The registration of the printed images of the various printing units 1 to 4 to one another can be carried out by means of the deflection rollers 20 or other devices, for example so-called web tensioning devices.

In Figur 2 ist eine Druckmaschine gleicher Grundkonfiguration wie in Figur 1 gezeigt. Hierbei wird über den Bereich der Gegendruckzylinder 7 ein an sich bekanntes Transportband 40 für Bedruckstoffe geführt. Die Bahn des Transportbandes 40 ist eben und führt durch die Druckzonen aller Druckwerke 1 bis 4 zwischen den jeweiligen Drucktuchzylindern 6 und den Gegendruckzylindern 7 hindurch. Auf diesem Transportband 40 können sowohl Bedruckstoffbahnen als auch Bedruckstoffbogen aufgelegt werden.
Bedruckstoffbogen werden vor dem Druckwerk 1 mittels eines Bogenanlegers 30 von einem Anlagestapel aus einer Anlegestation 41 dem Transportband 40 zugeführt, an einer Auslegestation 48 vom Transportband 40 abgenommen und in einem Bogenausleger 31 auf einen Auslagestapel abgelegt. Die Bedruckstoffbogen werden mittels geeigneter Mittel auf dem Transportband 40 gehalten, während sie die Druckzonen der Druckwerke 1 bis 4 durchlaufen.
Gleiches kann auf vergleichbare Weise für Bedruckstoffbahnen vorgesehen werden. Das Bedrucken einer Bedruckstoffbahn mittels einseitig wirkender Druckwerke, wie im gezeigten Beispiel, kann Probleme bei der Bedruckstoffführung provozieren, da der Bedruckstoff in der Druckzone nur einseitig an einem eingefärbten Zylinder anhaftet. Eine geeignete Führung auf dem Transportband 40 behebt dieses Problem auf einfache Art und Weise.FIG. 2 shows a printing machine of the same basic configuration as in FIG. Here, over the area of the counter-pressure cylinder 7, a per se known conveyor belt 40 is guided for printing materials. The path of the conveyor belt 40 is flat and passes through the printing zones of all printing units 1 to 4 between the respective blanket cylinders 6 and the counter-pressure cylinders 7 therethrough. On this conveyor belt 40, both printing material webs and printing material sheets can be placed.
Substrate sheets are fed to the printing unit 1 by means of a sheet feeder 30 from a plant stack from a docking station 41 the conveyor belt 40, removed at a delivery station 48 from the conveyor belt 40 and stored in a sheet delivery arm 31 on a delivery pile. The printing material sheets are held by suitable means on the conveyor belt 40 while they pass through the printing zones of the printing units 1 to 4.
The same can be provided in a similar way for substrates. The printing of a printing material web By means of single-acting printing units, as in the example shown, can provoke problems in the Bedruckstoffführung because the substrate adheres in the print zone only on one side of a colored cylinder. Appropriate guidance on the conveyor belt 40 solves this problem in a simple manner.

In Fig. 2 ist hierzu die Halterung des Bedruckstoffes auf dem Transportband 40 mittels Haltebändern 42 beschrieben. Dazu wird im Bereich des Bedruckstoffdurchlaufes eine parallele Führung von Transportband 40 und Haltebändern 42 vorgesehen. Die Haltebänder 42 werden oberhalb der Druckwerke 1 bis 4 in einem geschlossenen System zurückgeführt. Im Bereich der Haltebänder 42 können Spannvorrichtungen 43 vorgesehen sein. Der Bedruckstofftransport erfolgt dadurch, dass am Beginn des Transportbandes 40 eine in vertikaler Richtung bewegbar getaktete Fangrolle für die Haltebänder 42 vorgesehen ist. Dadurch lässt sich an der Anlegestation 41 ein Einlaufspalt 44 für den zu transportierenden Bedruckstoff erzeugen, sodaß der Bedruckstoff gesteuert und einstellbar zwischen den Haltebändern 42 und dem Transportband 40 eingeführt werden kann. Nachdem der Bedruckstoff ausreichend weit eingeführt ist, können die Haltebänder 42 abgesenkt werden und erfassen demzufolge den Bedruckstoff, so dass er reibschlüssig auf dem Transportband 40 gehalten und von diesem mitgenommen wird. Dabei führt eine Leitwalze 45 am Ende des Einlaufspalts 44 den Bedruckstoff ordnungsgemäß dem Transportband 40 zu und legt ihn zum Bedrucken auf das Transportband 40 auf. Das Halteband bzw. die Haltebänder 42 können in Form von magnetischen Bändern ausgeführt sein. Diese arbeiten mit einer entsprechenden Gegenfläche auf Transportbändern 40 zusammen. Dadurch wird eine feste Haftreibung zwischen dem Bedruckstoff und dem Transportband 40 erzielt. Der Bedruckstoff wird auf dem Transportband 40 fixiert und kann auf der geraden bzw. ebenen Transportstrecke durch die Druckwerke 1 bis 4 sicher geführt werden.
Zur Beeinflussung der Bedruckstoffzufuhr ist eine Station 46 vorgesehen. Diese kann als Mess- und/oder Ausrichtvorrichtung 46 oder als elektrostatische Vorrichtung ausgebildet sein. Dort kann der Bedruckstoff in seiner Lage erfasst, ausgerichtet oder mit elektrostatischer Aufladung versehen oder von elektrostatischer Aufladung befreit werden. Alle Maßnahmen unterstützen den ordnungsgemäßen Druck.In Fig. 2 for this purpose the holder of the printing material on the conveyor belt 40 is described by means of retaining bands 42. For this purpose, a parallel guidance of conveyor belt 40 and retaining straps 42 is provided in the region of the printing material throughput. The straps 42 are returned above the printing units 1 to 4 in a closed system. In the region of the straps 42 clamping devices 43 may be provided. The printing substrate is transported by the fact that at the beginning of the conveyor belt 40 is provided in the vertical direction a clocked catching roll for the retaining bands 42. As a result, an inlet gap 44 for the substrate to be transported can be produced at the application station 41, so that the printing material can be controlled and adjusted between the retaining bands 42 and the conveyor belt 40. After the printing material has been inserted sufficiently far, the holding straps 42 can be lowered and consequently grasp the printing material, so that it is held on the conveyor belt 40 in a friction-locked manner and taken along by it. In this case, a guide roller 45 at the end of the inlet gap 44, the substrate properly to the conveyor belt 40 and places it for printing on the conveyor belt 40. The holding band or the retaining bands 42 may be in the form of magnetic bands. These work together with a corresponding counter surface on conveyor belts 40. As a result, a solid stiction between the substrate and the conveyor belt 40 is achieved. The printing material is fixed on the conveyor belt 40 and can be on the straight or even Transport route through the printing units 1 to 4 are performed safely.
To influence the printing material supply, a station 46 is provided. This can be designed as a measuring and / or alignment device 46 or as an electrostatic device. There, the substrate can be detected in its position, aligned or provided with electrostatic charge or exempt from electrostatic charge. All measures support proper pressure.

In Figur 5 ist passend zur Darstellung nach Figur 2 eine Draufsicht auf den Transportweg von Bedruckstoffbogen 50 durch eine derartige Druckmaschine gezeigt. Die Haltebänder 42 legen sich seitlich auf die Bedruckstoffbogen 50 auf. Dabei werden die Bedruckstoffbogen 50 in druckbildfreien Rändern 47 gehalten, während die bedruckten Bereiche in der Mitte der Bedruckstoffbogen 50 nicht abgedeckt werden. Denkbar ist auch die Anwendung von Haltebändern 42 in der Mitte des Transportweges, wenn im Drucksujet an dieser Stelle unbedruckte Bereiche vorgesehen sind.In FIG. 5, a plan view of the transport path of the printing material sheet 50 through such a printing press is shown, fittingly in accordance with the illustration according to FIG. The straps 42 lay on the side of the printing material 50 on the side. The printing material sheets 50 are held in print-free edges 47, while the printed areas in the middle of the printing material sheets 50 are not covered. Also conceivable is the use of retaining straps 42 in the middle of the transport path, when unprinted areas are provided in the printed matter at this point.

In Figur 3 ist eine Druckmaschine gleicher Grundkonfiguration wie in Figur 1 gezeigt. Hierbei sind spezielle Transportbänder 40 vorgesehen, gegenüber denen Anpresswalzen 60 gezeigt sind. Der Bedruckstoff wird in diesem Fall mittels der Anpresswalzen 60 auf das Transportband 40 aufgewalzt und auf diese Weise dort fixiert. Durch eine entsprechende Materialwahl des Transportbandes 40 kann die Haltekraft des Transportbandes 40 gegenüber dem Bedruckstoff günstig gestaltet werden. Je nach Wahl des Bedruckstoffes können unterschiedliche Werkstoffe für die Transportbänder 40 zur Disposition stehen. Die Anpresswalzen 60 arbeiten mit einer festen Gegenfläche 61 zusammen und dienen dem Auspressen von zwischen dem Bedruckstoff und dem Transportband 40 vorhandene Luft. Bei der Verwendung von folienartigen Werkstoffen genügt es in der Regel ein ebenso glattes Transportband 40 vorzusehen. Dadurch wird beim Aufpressen des Bedruckstoffes mittels der Anpresswalzen 60 eine ausreichende Haftung erzielt. Bei papierförmigen Bedruckstoffen ist es vorteilhaft, eine Adhäsionsfolie auf dem Transportband 40 vorzusehen. Diese unterstützt die Haltekraft weiterhin.
Im Zusammenhang der geschilderten Konfiguration kann es vorteilhaft sein vor der Zufuhr des Bedruckstoffes zum ersten Druckwerk 1 einen Ladungsausgleich oder eine Aufladung des Bedruckstoffes herbeizuführen. Dazu ist eine elektrostatische Ladungsvorrichtung einsetzbar. Gleichfalls ist der Bedruckstoff vor der Zufuhr zum ersten Druckwerk 1 mittels einer Meßvorrichtung in seiner Lage zu erfassen und gegebenenfalls auszurichten. Dies kann mittels der Führung des Transportbandes 40 erfolgen. Das Transportband 40 ist auf seiner Durchlaufstrecke durch die Druckwerke 1 bis 4 in Längsrichtung und in Querrichtung justierbar.
Darüber hinaus kann der Bedruckstoff zur Sicherung der Anhaftung am Transportband 40 auch zwischen den Druckwerken 1 bis 4 mittels weiterer Anpresswalzen 62 lagerichtig auf das Transportband 40 aufgepresst werden. Die unterhalb des Transportbandes 40 vorgesehenen Führungsflächen 61 dienen der glatten Auflage des Bedruckstoffes. Die Anpresswalzen 62 sollten dazu mit einer farbabweisenden Oberfläche versehen sein. Hier können allerdings auch über die Anpresswalzen 62 Trockenstoffe in das auf den Bedruckstoff aufgebrachte Druckbild eingebracht werden.FIG. 3 shows a printing machine of the same basic configuration as in FIG. In this case, special conveyor belts 40 are provided, against which pressure rollers 60 are shown. The printing material is rolled in this case by means of the pressure rollers 60 on the conveyor belt 40 and fixed in this way there. By an appropriate choice of material of the conveyor belt 40, the holding force of the conveyor belt 40 against the printing material can be made low. Depending on the choice of the printing material, different materials for the conveyor belts 40 may be in disposition. The pressure rollers 60 cooperate with a fixed counter-surface 61 and serve to squeeze existing between the substrate and the conveyor belt 40 air. at the use of film-like materials it is sufficient to provide an equally smooth conveyor belt 40 in the rule. As a result, 60 sufficient adhesion is achieved when pressing the printing material by means of the pressure rollers. In paper-based substrates, it is advantageous to provide an adhesive film on the conveyor belt 40. This continues to support the holding force.
In the context of the described configuration, it may be advantageous to bring about a charge equalization or a charging of the printing material before the supply of the printing material to the first printing unit 1. For this purpose, an electrostatic charging device can be used. Likewise, the substrate before being fed to the first printing unit 1 by means of a measuring device in its position to detect and, if appropriate, align. This can be done by means of the guide of the conveyor belt 40. The conveyor belt 40 is adjustable on its passage through the printing units 1 to 4 in the longitudinal direction and in the transverse direction.
In addition, the printing material to secure the adhesion to the conveyor belt 40 between the printing units 1 to 4 by means of further pressure rollers 62 can be pressed in the correct position on the conveyor belt 40. The provided below the conveyor belt 40 guide surfaces 61 serve the smooth support of the printing material. The pressure rollers 62 should be provided with a color-repellent surface. Here, however, 62 dry substances can be introduced into the printed image applied to the substrate via the pressure rollers.

In Figur 4 ist eine weitere Druckmaschine gleicher Grundkonfiguration nach Figur 1 gezeigt. Hierbei wird der Bedruckstoff auf dem Transportband 40 mittels eines Luftstroms gehalten. Dazu ist vor dem Einlaufen des Bedruckstoffes in die Druckzone des ersten Druckwerkes 1 eine pneumatische Anpressvorrichtung 70 vorgesehen. Diese kann in der Art einer schlitzförmigen Blasvorrichtung über die gesamte Breite des Bedruckstoffes angeordnet sein. Die pneumatische Anpressvorrichtung 70 sollte dabei eine möglichst hohe Anpresskraft erzielen. Gleichzeitig kann vorgesehen sein, daß die pneumatische Anpressvorrichtung 70 den Bedruckstoff von der Mitte nach außen ausstreicht. Dazu kann es vorteilhaft sein, der pneumatischen Anpressvorrichtung 70 in Transportrichtung des Bedruckstoffes eine Konturierung derart zu verleihen, daß beispielsweise eine gegen die Transportrichtung ausgeformte etwa pfeilförmige Anordnung verwendet wird.FIG. 4 shows a further printing press of the same basic configuration according to FIG. In this case, the printing material is held on the conveyor belt 40 by means of an air flow. For this purpose, before entering the printing material in the printing zone of the first printing unit 1 is a pneumatic Pressing device 70 is provided. This can be arranged in the manner of a slot-shaped blowing device over the entire width of the printing material. The pneumatic pressure device 70 should achieve the highest possible contact force. At the same time it can be provided that the pneumatic pressure device 70 sweeps the substrate from the center to the outside. For this purpose, it may be advantageous to give contouring to the pneumatic pressing device 70 in the transport direction of the printing material such that, for example, an approximately arrow-shaped arrangement formed against the transport direction is used.

Zur Aufrechterhaltung der Anhaftkraft auch zwischen den Druckwerken 1 bis 4 sind dort weitere pneumatische Anpressvorrichtungen 71, 72 und 73 vorgesehen. Mittels dieser Anpressvorrichtungen 71 bis 73 kann die in den Druckzonen gegebenenfalls reduzierte Anhaftkraft erneuert werden. Dies ist deshalb besonders vorteilhaft, weil die pneumatischen Anpressvorrichtungen 71 bis 73 berührungsfrei arbeiten und daher die frischen Druckbilder nicht verschmieren können. Weiterhin kann mittels der pneumatischen Anpressvorrichtungen 71 bis 73 eine Zwischentrocknung der Druckbilder erreicht werden. Dazu kann es sinnvoll sein, die pneumatischen Anpressvorrichtungen 71 bis 73 mit vorgeheizter Luft zu versorgen.To maintain the adhesion even between the printing units 1 to 4 there are more pneumatic pressure devices 71, 72 and 73 are provided. By means of these pressing devices 71 to 73, the optionally reduced adhesion force in the pressure zones can be renewed. This is particularly advantageous because the pneumatic pressure devices 71 to 73 operate without contact and therefore can not smear the fresh printed images. Furthermore, an intermediate drying of the printed images can be achieved by means of the pneumatic pressure devices 71 to 73. For this purpose, it may be useful to supply the pneumatic pressure devices 71 to 73 with preheated air.

Unterstützt werden kann die Anhaftung des Bedruckstoffes auf dem Transportband 40 durch zusätzliche Mittel wie einem lösbaren Klebstoff. In diesem Zusammenhang kann hier vorgesehen sein, im Bereich der Zufuhr von Bedruckstoffbogen eine Station zum Verbinden des Bedruckstoffes mit dem Transportband 40 dahingehend darzustellen, dass mit einer Klebeverbindung versehene Bereiche im Transportband 40 vorgesehen sind. Diese Bereiche können zum Übernehmen des Bedruckstoffes mittels einer Aufheizstation an ihrer Oberfläche angeschmolzen werden, wodurch der Bedruckstoff dann besonders gut und fest anhaften kann. Die Abgabe des Bedruckstoffs an der Auslaufseite wird durch erneutes Erwärmen der Klebebereiche ermöglicht. Mittels einer derartigen Vorrichtung ist in vorteilhafter Weise die Verbindung zwischen Bedruckstoff und Transportband 40 unter nahezu immer gleichen Bedingungen möglich. Ein alternativer und kostengünstiger Einsatz von bekannten Klebestreifen, von denen sich beispielsweise papierförmiger Bedruckstoff leicht wieder abziehen lässt, ist zeitabhängig veränderlich und nicht auf einfache Weise erneuerbar. Die Möglichkeit des Anschmelzens von Klebe- bzw. Haftbereichen verschafft dem Bedruckstofftransport immer neu die gleichen Anhaftbedingungen.The adhesion of the printing material on the conveyor belt 40 can be supported by additional means such as a releasable adhesive. In this context, it may be provided here to represent a station for connecting the printing substrate to the conveyor belt 40 in the area of the supply of printing material sheet, that areas provided with an adhesive bond are provided in the conveyor belt 40. These areas can be used to transfer the substrate be fused by means of a heating station on its surface, whereby the substrate can then adhere particularly well and firmly. The delivery of the printing material on the outlet side is made possible by reheating the adhesive areas. By means of such a device, the connection between substrate and conveyor belt 40 under almost always the same conditions is possible in an advantageous manner. An alternative and cost-effective use of known adhesive strips, from which, for example, paper-like printing material can easily be peeled off, is time-dependent variable and not easily renewable. The possibility of melting adhesive or adhesive areas provides the substrate transport always new the same adhesion conditions.

Mittels der gezeigten Vorrichtungen ist es möglich, in einer Druckmaschine deren Konfiguration für den Rollendruck geeignet ist, auch bogenförmige Bedruckstoffe zu verarbeiten. Die Varianten zum Anhaften des Bedruckstoffs auf dem Transportband 40 sind alle dahingehend vorteilhaft, dass sie stets gleiche Haftbedingungen bezeugen. Beim Einbringen von elektrostatischer Ladung oder lediglich mit Klebstoff beschichteten Bereichen ist eine Erneuerung der Haftbedingungen nicht ohne weiteres möglich. Vor allen Dingen sind derartige Verfahrensweisen für bestimmte Druckverfahren gar nicht geeignet, z.B. den Nassoffsetdruck. Die Erneuerbarkeit der Haftbedingungen gestaltet sich dahingehend, dass z.B. die Adhäsionsfolien stetig gereinigt werden können und so von Papierstaub frei sind. Der anschmelzbare Klebstoff stellt weiterhin stets gleiche Haftbedingungen zur Verfügung. Weiterhin kann mittels der Anpresswalzen 60, 62 bzw. der pneumatischen Anpressvorrichtungen 70 bis 73 die Anhaftung des Bedruckstoffes stetig überwacht und nachhaltig verbessert werden.By means of the devices shown, it is possible in a printing machine whose configuration is suitable for web-fed printing, also to process sheet-shaped substrates. The variants for adhering the printing substrate to the conveyor belt 40 are all advantageous in that they always attest to the same conditions of adhesion. When introducing electrostatic charge or adhesive coated areas only, renewal of the adhesion conditions is not readily possible. Above all, such procedures are not suitable for certain printing processes, such as wet offset printing. The renewability of the detention conditions is such that, for example, the adhesive films can be cleaned continuously and are thus free of paper dust. The fusible adhesive furthermore always provides the same adhesion conditions. Furthermore, by means of the pressure rollers 60, 62 or the pneumatic pressure devices 70 to 73, the adhesion of the printing material can be constantly monitored and sustainably improved.

Die beschriebene Druckmaschine bietet Anwendungsmöglichkeiten für die derzeit bekannten Druckverfahren. Die Beschränkung auf den konventionellen Offsetdruck soll hier nicht gelten. Die Art des Bedruckstofftransportes ist auch nicht auf die Druckverfahren bekannter Art beschränkt. Angewendet werden können alle Verfahren vom Flachdruck über den Tiefdruck bis zum Hochdruck. Dabei können sowohl direkte als auch indirekte Druckverfahren angewendet werden. Weiterhin können auch sogenannte digitale Druckverfahren zur Anwendung kommen, bei denen Druckformen in der Maschine erstellt werden. Weiterhin sind in der Druckmaschine unterschiedlichste Einfärbemethoden anwendbar, wobei die Orientierung an der erforderlichen Druckqualität erfolgen muß. Daher können Einfärbemethoden aus dem Bereich des Bogendruckes ebenso zur Anwendung kommen wie aus dem Bereich des Rollendruckes. Insbesondere bei digitalen Druckmaschinen ist die Verwendung spezieller Einfärbemethoden auf Tonerbasis, sowohl in trockener als auch in flüssiger Form, denkbar und möglich.The described printing machine offers application possibilities for the currently known printing methods. The restriction to conventional offset printing should not apply here. The type of printing substrate transport is not limited to the printing method of known type. All processes can be applied from planographic printing through gravure printing to high pressure. Both direct and indirect printing methods can be used. Furthermore, so-called digital printing methods can be used, in which printing forms are created in the machine. Furthermore, a wide variety of inking methods are applicable in the printing machine, wherein the orientation must be made to the required print quality. Therefore, inking methods from the area of sheetfed printing can be used as well as from the field of webfed printing. Particularly in digital printing machines, the use of special toner-based inking methods, both in dry and liquid form, is conceivable and possible.

Die Druckmaschine kann gleichfalls nach jeweils aktuellen Konstruktionsprinzipien gestaltet werden, wobei die Anwendung von hülsenförmigen Druckformen oder Drucktüchern oder anderweitigen Zylinderbespannungen in Frage kommt.The printing machine can also be designed according to current design principles, the use of sleeve-shaped printing plates or blankets or other cylinder clothing in question.

Ebenso ist für die Maschinenkonfiguration eine Ausprägung vorgesehen, bei der die den Druckspalt bildenden Zylinder linear oder bogenförmig zueinander verstellbar angeordnet sind. Dies hat den Vorteil, daß die Zuordnung der Druckelemente auf einfache Weise erfolgen kann. Es ist dann kein Umbau der Druckwerke beim Wechsel von Verfahren oder Bedruckstoffart notwendig.Likewise, an expression is provided for the machine configuration, in which the cylinder forming the pressure nip are arranged to be linearly or arcuately adjustable with respect to each other. This has the advantage that the assignment of the printing elements can be done in a simple manner. It is then no conversion of the printing units when changing process or type of printing material necessary.

Im Zusammenhang damit ist der Einsatz von Einzelantrieben für alle bekannten Druckwerkselemente besonders günstig. Hierbei ist denkbar, daß der Bogenanleger 30 separat angetrieben wird. Damit können Bedruckstoffbogen wesentlich gezielter der Druckmaschine zugeführt werden.In connection with this, the use of individual drives for all known printing element elements is particularly favorable. It is conceivable that the sheet feeder 30 is driven separately. Thus, printing material sheets can be fed much more targeted the press.

Weiterhin sind in diesem Fall auch formatunabhängige Druckprozesse für bahnförmige Bedruckstoffe möglich. Dabei können Druckvorgänge mit nicht vollständig belegtem Formzylinder so gesteuert werden, daß die Bedruckstoffbahn gleichwohl in voller Länge bedruckt wird. In diesem Fall kann der Bedruckstoff auf einfache Weise in Arbeitsschritten bewegt werden. Während die Formzylinder gleichmäßig rotieren, wird das Transportband jeweils nur dann bewegt, wenn ein Druckbild zu übertragen ist. Wenn die nicht mit Druckbilder belegten Umfangsteile der Formzylinder umlaufen, wird das Transportband stillgesetzt. So kann zwischen den Druckbildern keine Lücke entstehen, die den Bedruckstoffverbrauch unnötig erhöhen würde. Eine derartige Verfahrensweise ist insbesondere im Zusammenhang der beschriebenen Druckmaschine mit einem Transportband möglich. Durch Auflegen der Bedruckstoffbahn auf das Transportband kann die Bedruckstoffbahn sehr gut geführt und nahezu beliebig gesteuert werden. Die Registerhaltigkeit der Drucke in den einzelnen Druckwerken bleibt stets gesichert, da das Transportband die Bedruckstoffbahn führt. Bei der Verwendung von bahnförmigem Bedruckstoff können im Übrigen die bereits beschriebenen Hilfsmittel zur Herstellung einer Transportverbindung des Bedruckstoffes mit dem Transportband ebenso zur Anwendung kommen wie bei einem bogenförmigen BedruckstoffFurthermore, format-independent printing processes for web-shaped substrates are also possible in this case. In this case, printing processes can be controlled with not completely occupied form cylinder so that the substrate web is nevertheless printed in full length. In this case, the printing material can be easily moved in steps. While the form cylinder rotate uniformly, the conveyor belt is only moved when a print image is to be transferred. If the peripheral parts of the forme cylinders, which are not covered by printed images, circulate, the conveyor belt is stopped. Thus, there can be no gap between the printed images, which would unnecessarily increase the consumption of substrate. Such a procedure is possible in particular in the context of the described printing press with a conveyor belt. By placing the printing material on the conveyor belt, the printing material can be very well managed and controlled almost anywhere. The register accuracy of the prints in the individual printing units always remains secure because the conveyor belt leads the printing material web. Incidentally, when using web-shaped printing material, the auxiliaries already described for producing a transport connection of the printing substrate with the conveyor belt can also be used, as in the case of an arcuate printing substrate

[Bezugszeichenliste][REFERENCE LIST]

Druckwerkprinting unit
11
Druckwerkprinting unit
22
Druckwerkprinting unit
33
Druckwerkprinting unit
44
Formzylinderform cylinder
55
DrucktuchzylinderBlanket cylinder
66
GegendruckzylinderImpression cylinder
77
Bedruckstoffbahnprinting material
88th
Zufuhrrollesupply roll
1010
Abnahmerolleoff roll
1111
Umlenkwalzedeflecting
2020
Bogenanlegersheet feeder
3030
Bogenauslegersheet delivery
3131
Transportbandconveyor belt
4040
Anlegestationlanding station
4141
Haltebänderntethers
4242
Spannvorrichtungjig
4343
Einlaufspaltinlet gap
4444
Leitwalzeguide roll
4545
Meß- und AusrichtvorrichtungMeasuring and alignment device
4646
elektrostatische Vorrichtungelectrostatic device
4646
BedruckstoffrandBedruckstoffrand
4747
Auslegestationdelivery station
4848
Bedruckstoffbogenprinting material
5050
Anpresswalzepressure roller
6060
Führungsflächeguide surface
6161
Anpresswalzepressure roller
6262
pneumatische Anpressvorrichtungpneumatic pressure device
7070
pneumatische Anpressvorrichtungpneumatic pressure device
7171
pneumatische Anpressvorrichtungpneumatic pressure device
7272
pneumatische Anpressvorrichtungpneumatic pressure device
7373
Führungsflächeguide surface
7474

Claims (12)

  1. A printing machine for the coating of printing support (8,50) with multi-colour print images, with a plurality of printing mechanisms (1-4), each containing at least one forme cylinder (5), an inking system and an impression cylinder (7), with a single printing support guide system by means of which the printing support can be guided releasably connectable through printing gaps of all printing mechanisms (1 to 4), wherein a plane of the printing support transport defined through the impression cylinders (7) runs in a straight line through the printing mechanisms (1 to 4) wherein the printing support guide system is formed web or band-shaped, wherein the printing support guide system has means for the register-appropriate fixing of the printing support on the transport route which is also provided between the printing mechanisms (1 to 4) and designed such that the printing support is also guided adhering to the printing support guide system before and after the respective printing gaps and the means do not remove any ink from the print images on the printing support, wherein the impression cylinders (7) have a diameter that is independent of the diameter of the forme cylinders (5), and wherein the cylinders for forming the printing gap through which the printing support guide system is guided are adjustable in a linear or arc-shaped manner relative to each other,
    characterized in that
    by means of the printing support guide system sheet and reel-type printing support can be transported through all printing mechanisms (1 to 4),and that the machine has a drive by means of which the printing support guide system can be driven at least independently of the forme cylinders (5).
  2. The printing machine according to claim 1,
    characterized in that
    the printing support guide system has a placement station (41) processing webs and sheets for the feeding of printing support and a discharge station (48) for discharging printing support.
  3. The printing machine according to claim 1 or 2,
    characterized in that
    the printing support guide system has a transport conveyor (40) which is passed through the printing zones assigned to the printing cylinders (7) of all printing mechanisms (1 to 4) in a flat or approximately flat manner and that the means for affixing the printing support are provided on the transport conveyor.
  4. The printing machine according to claim 3,
    characterized in that,
    associated in the printing support guide system with the transport conveyor (40), in the region of the placement station (41), a device for increasing the adhesive force of the transport conveyor (40) relative to the printing support is provided and, associated with the transport conveyor (40), in the region of the discharge station (48), a device for reducing the adhesive force of the transport conveyor (40) relative to the printing support is provided.
  5. The printing machine according to claim 3 or 4,
    characterized in that
    pneumatic pressing-on devices (70 to 73) to fix the printing support are provided on the transport route of the printing support.
  6. The printing machine according to claim 3 or 4,
    characterized in that,
    as means of fixing the printing support, pressing-on rollers (60, 62) are provided on the transport route of the printing support.
  7. The printing machine according to claim 3 or 4,
    characterized in that,
    as means for fixing the printing support, gluing regions are provided on the transport conveyor (40) the adhesive capability of which is controllable under the influence of heat.
  8. The printing machine according to claim 7,
    characterized in that
    in the region of the placement station a device for increasing the adhesive force of the gluing regions is arranged and that in the region of the discharge station a device for reducing the adhesive force of the gluing regions is provided.
  9. The printing machine according to claim 4,
    characterized in that
    in the region of the transport route of the printing support through the printing mechanisms (1 to 4) load devices for creating adhesive friction of the printing support on the transport conveyor (40) are provided such that the printing support outside the printing regions is continuously loadable relative to the transport conveyor (40) such that the adhesive force of the transport conveyor (40) relative to the printing support is continuously supported in the region of the load devices.
  10. The printing machine according to claim 9,
    characterized in that
    holding bands (42) are provided which can at least be associated with the unprinted edges of the printing support, that the holding bands (42) in the region of the printing zones are guided parallel to the transport conveyor (40), that by means of the holding bands (42) directly or indirectly a holding force can be exerted on the printing support and that the holding bands (42) can be driven in synchronisation with the transport conveyor (40).
  11. The printing machine according to claim 9 or 10,
    characterized in that
    in the region of the placement station (41) through control of guide elements of the holding bands (42) a feed gap (44) between the holding bands (42) and the transport conveyor (40) can be created such that printing support can be fed to the transport conveyor (40) cyclically.
  12. The printing machine according to any one of the preceding claims,
    characterized in that
    the printing support guide system with continuously drivable forme cylinders (5) can be driven step-by-step such that with a forme cylinder surface that is not fully occupied continuous or approximately continuous print images can be printed on the printing support.
EP01929608A 2000-05-16 2001-04-28 Combined printing machine Expired - Lifetime EP1286835B1 (en)

Applications Claiming Priority (3)

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DE10023689A DE10023689A1 (en) 2000-05-16 2000-05-16 Combined printing machine
DE10023689 2000-05-16
PCT/EP2001/004801 WO2001087610A1 (en) 2000-05-16 2001-04-28 Combined printing machine

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EP1286835A1 EP1286835A1 (en) 2003-03-05
EP1286835B1 true EP1286835B1 (en) 2007-11-07

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US (1) US6925932B2 (en)
EP (1) EP1286835B1 (en)
JP (1) JP2003533418A (en)
CN (1) CN1230298C (en)
AT (1) ATE377508T1 (en)
AU (1) AU2001256328A1 (en)
CA (1) CA2409023C (en)
CZ (1) CZ20023595A3 (en)
DE (2) DE10023689A1 (en)
DK (1) DK1286835T3 (en)
WO (1) WO2001087610A1 (en)

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CZ20023595A3 (en) 2003-03-12
CN1429150A (en) 2003-07-09
US6925932B2 (en) 2005-08-09
JP2003533418A (en) 2003-11-11
DE10023689A1 (en) 2001-12-06
EP1286835A1 (en) 2003-03-05
DE50113233D1 (en) 2007-12-20
CN1230298C (en) 2005-12-07
US20030221568A1 (en) 2003-12-04
ATE377508T1 (en) 2007-11-15
CA2409023A1 (en) 2001-11-22
CA2409023C (en) 2007-02-20
AU2001256328A1 (en) 2001-11-26
WO2001087610A1 (en) 2001-11-22
DK1286835T3 (en) 2008-02-18

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