EP3381685A1 - Printing machine - Google Patents

Printing machine Download PDF

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Publication number
EP3381685A1
EP3381685A1 EP17163948.7A EP17163948A EP3381685A1 EP 3381685 A1 EP3381685 A1 EP 3381685A1 EP 17163948 A EP17163948 A EP 17163948A EP 3381685 A1 EP3381685 A1 EP 3381685A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
printing
cylinders
substrate
printing machine
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.)
Granted
Application number
EP17163948.7A
Other languages
German (de)
French (fr)
Other versions
EP3381685B1 (en
Inventor
Dirk Schreckenbach
Harman VORENKAMP
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.)
Mayr Melnhof Karton AG
Original Assignee
Mayr Melnhof Karton AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mayr Melnhof Karton AG filed Critical Mayr Melnhof Karton AG
Priority to EP17163948.7A priority Critical patent/EP3381685B1/en
Priority to PL17163948T priority patent/PL3381685T3/en
Priority to RU2018111023A priority patent/RU2018111023A/en
Publication of EP3381685A1 publication Critical patent/EP3381685A1/en
Application granted granted Critical
Publication of EP3381685B1 publication Critical patent/EP3381685B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • B41F19/062—Presses of the rotary type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F11/00—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/0008—Driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/70—Driving devices associated with particular installations or situations
    • B41P2213/73—Driving devices for multicolour presses
    • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing

Definitions

  • the invention relates to a printing machine, in particular for imaging a substrate such as a web, in particular a paper web.
  • the DE 10 2009 045 679 B4 discloses a method for controlling a drive of at least one rotary body of a printing press to be driven in register, wherein the rotary body to be driven in register is rotationally driven by a drive motor via a drive train and / or in a drive network.
  • a printing machine known, with a flexographic printing module, which is adapted to vary movements and voltages of a web substrate.
  • a gravure module is provided which is adapted to vary movements and stresses of the web substrate.
  • the object of the present invention is to provide a printing machine by means of which at least one substrate, for example a web, in particular a paper web, can be imaged particularly advantageously, in particular imprinted.
  • the printing machine comprises at least one first cylinder designed as a gravure cylinder for carrying out a gravure printing method for applying at least one printing layer to a substrate such as a web, in particular a paper web, wherein the substrate is, for example, limp or dimensionally unstable.
  • the first cylinder is designed as a gravure cylinder, by means of which a gravure printing method can be performed.
  • the at least one printing layer can be applied to the substrate.
  • the printing press further comprises at least one second cylinder designed to perform a different printing process from a gravure printing method for imaging at least one subregion of at least one printed layer applied to the substrate.
  • the at least one printing layer applied to the substrate, which is to be imaged by means of the second cylinder is, for example, the aforementioned, at least one printing layer, which is applied to the substrate by means of the first cylinder.
  • the second cylinder is configured to perform a different from an intaglio printing method, it is to be understood in particular that the imaging process performed by the second cylinder is not a gravure printing process.
  • the printing press according to the invention further comprises a pressure stand which is common to the cylinders and to which the cylinders are at least rotatably mounted.
  • the printing press according to the invention comprises an electronic Computing device which is designed to drive the cylinders in register depending on a virtual master axis.
  • the virtual master axis means, for example, that the cylinders are not or not only mechanically coupled to one another and thus not or not only mechanically synchronized with one another, but rather the cylinders For example, are mechanically decoupled and are thereby synchronized by means of the electronic computing device control or regulation technology.
  • the electronic computing device control or regulation technology can be omitted by the use of virtual and thus physically non-existent, but control or control technology and thus electronically realized lead a king wave so that, for example, a vertical wave for mechanical coupling and synchronization of the cylinder can be omitted, thereby for example a mechanical bond between the cylinders to dissolve or avoid.
  • the virtual master axis is realized, in particular, in that the cylinders are assigned respective individual drives for driving the cylinders, wherein the individual drives are coupled or synchronized with each other via the virtual master axis and thus with regard to control or regulation, but not physically or mechanically.
  • This is done for example by a position control, which is carried out by means of the electronic computing device.
  • the individual drives contain, for example, the position control or a motion control, in particular at least substantially simultaneously, current positions of the master axis as position setpoints.
  • the position setpoints are obtained by the drives, for example, via a bus system designed in particular as a real-time bus system.
  • the electronic computing device transmits, for example, electrical signals which characterize the respective position setpoints or include.
  • the individual drive receive the signals and thus the position setpoints and move the cylinders, for example, regulated, in actual positions that preferably correspond to the position setpoints or only slightly, for example, due to technical control inaccuracies, deviate from the position setpoints.
  • the virtual master axis Through the use of the virtual master axis, it is possible, for example, to make the cylinders, for example, designed as pressure cylinders and used in the context of a printing process, absolute, ie 100% angular synchronous, so that they are controlled or regulated, for example, by only one register control point can be saved, which costs compared to conventional printing presses. Furthermore, for example, an operating or handling effort for a person is simplified, and also an autonomous adjustment of the first cylinder and / or the second cylinder, in particular to a reference pressure value, can be made possible.
  • the imaging process is in particular a rotary imaging process.
  • the imaging process may in particular comprise a flexographic printing or a flexographic printing process, an embossing or embossing process, a holography or a holographic process and / or a magnetic alignment.
  • the printing layer which is applied by means of the first cylinder to the substrate, which is designed, for example, as a particularly pliable or form-stable web or paper web, and / or is imaged by the second cylinder comprises, for example, a liquid such as a paint, a lacquer or the like.
  • the second cylinder is used, for example, to perform a flexographic printing or a flexographic printing process.
  • the second cylinder has at least one flexo plate which, for example, presses lightly into the printing layer in order to at least partially image it.
  • a touch-sensitive imaging method in particular printing method, carried out, in whose context the second cylinder contacts the printing layer and, for example, at least partially immersed in it.
  • a non-contact imaging method in particular printing method, is carried out, in the framework of which the second cylinder does not touch the printing layer during the execution of the imaging process.
  • the second cylinder is designed, for example, to provide magnetic forces. These magnetic forces act, for example, together with particles received in the printing layer, in particular platelets, whereby the particles or platelets are aligned. In this way, a non-contact imaging process can be performed.
  • a particularly advantageous synchronous operation of the cylinder can be realized in a particularly simple and, in particular, cost-effective manner, without requiring a particularly physically present or mechanical register control.
  • the first cylinder is associated with a first drive motor for driving the first cylinder.
  • the second cylinder is assigned a different from the first drive motor, in addition to the first drive motor provided second drive motor for driving the second cylinder.
  • the respective drive motor is designed for example as an electric motor.
  • the drive motors are, for example, the aforementioned individual drives.
  • the electronic computing device is designed to control the drive motors in dependence on the virtual master axis and thereby drive the cylinders in register via the drive motors as a function of the virtual master axis.
  • the cylinders can be synchronized particularly precisely or driven synchronously with each other, so that the substrate can be imaged particularly precisely and thus visually appealing. This precise synchronization of the cylinder is feasible without mechanical or physical coupling of the cylinder, so that the number of parts and the cost of the printing press can be kept very low.
  • the second cylinder is designed to image at least a portion of the at least one pressure layer applied to the substrate by means of the gravure cylinder. Consequently
  • the at least one print layer may be a different print layer from the at least one print layer. However, it is preferably provided that the at least one print layer is the at least one print layer.
  • a particularly accurate imaging can be realized in that the cylinders are adjustable in the radial direction of the respective cylinder relative to each other.
  • at least one of the cylinders in the radial direction of the one cylinder is adjustable relative to the other cylinder and in particular relative to the pressure stand, that is movable.
  • the other cylinder for example, remains fixed, that is to say in particular stationary.
  • the cylinders are adjustable in the axial direction of the respective cylinder relative to each other.
  • at least one of the cylinders in the axial direction of the one cylinder is adjustable relative to the other cylinder and, for example, relative to the pressure stand, that is movable or displaceable.
  • the cylinders are radially and / or axially adjustable relative to one another in order to be able to adjust the cylinders particularly precisely. After adjustment of the cylinders, these take up respective positions or positions, in particular relative to one another, wherein these positions are fixed, in particular by means of the virtual guide axis.
  • the cylinders in particular relative to one another, are coupled by means of the virtual master axis, whereby their orientation in particular relative to each other, virtually, that is without mechanical or physically existing register control or coupling device is fixed and maintained.
  • the costs can be kept very low.
  • the second cylinder is designed to immerse at least partially in the at least one print layer and thereby to image by contact at least the partial area of the at least one print layer.
  • the second cylinder is designed to perform the imaging process in the form of a touch-sensitive imaging process, whereby a particularly advantageous imaging can be realized.
  • the second cylinder is designed to contactlessly image at least the partial area of the at least one printed layer relative to the printing layer so that the second cylinder does not touch the printed layer in order to image at least the partial area of the printed layer.
  • the second cylinder is designed to provide magnetic forces and to image by means of the magnetic forces at least the partial region of the at least one substrate without contact.
  • Another embodiment is characterized in that the second cylinder directly adjoins the first cylinder. This is understood to mean that, in particular in the direction of travel or movement of the substrate through or along the printing press, no cylinder is arranged between the cylinders for imaging and / or for applying a material to the substrate.
  • the printing press has at least one reference printing unit.
  • the electronic computing device is designed to drive the reference printing unit and the first cylinder as a function of one of the virtual master axis superordinate, another virtual master axis and nachsammlung the second cylinder to the first cylinder.
  • the first virtual leading axis is a virtual Subleitachse, which the other is subordinate to the virtual leading axis.
  • the further virtual master axis is thus, for example, a virtual main master axis to which the subordinate axis is subordinate.
  • the first cylinder and the reference printing unit are synchronized with each other and in particular driven in register.
  • the second cylinder is tracked to the first, results in a register-based and thus very precise process, which can be realized particularly cost-effective due to the use of the virtual leading axes.
  • the virtual master axles are used, it is possible, for example, to dispense with mechanical couplings between the cylinders and between the first cylinder and the reference printing unit, with the aforementioned register-containing process being realized virtually, that is to say by control or regulation using the electronic computing device and the virtual master axles becomes.
  • the second cylinder is tracked by means of the virtual Subleitachse the first cylinder, a particularly accurate imaging can be displayed.
  • the drawing shows in the single FIGURE is a schematic side view of a printing machine according to the invention.
  • the single FIGURE shows a schematic side view of a generally designated 10 printing press for performing a printing process, in the context of which, for example, a substrate 12 is imaged at least in a partial area.
  • the substrate 12 is conveyed along or through the printing press 10 along a direction of movement, which is illustrated by arrows 14 in the figure.
  • the substrate is limp and form-labile, the Substrate 12, for example, as a web, in particular as a paper web is formed.
  • the substrate 12 is guided and tensioned, for example, by means of respective rollers 16 and 17 of the printing machine 10, wherein - as shown in the figure by a double arrow 18 - at least one of the rollers 16 and 17 vertically, and / or horizontally adjustable, that is movable , As a result, for example, the substrate 12 can be adjusted in terms of its voltage.
  • the printing machine 10 comprises a first cylinder 20, which is designed as a gravure cylinder for performing a gravure printing process. Further, the first cylinder 20 is adapted to apply a material 22 to the substrate 12 to thereby form at least one print layer from the material. Thus, the at least one printing layer of the material 22 is applied to the substrate 12 by means of the first cylinder 20 (gravure cylinder).
  • the material 22 is, for example, a liquid, wherein the material 22 is in particular a paint or a lacquer.
  • the material 22 is received in a container 24 of the printing machine 10, wherein the first cylinder 20 is immersed in the material 22.
  • a portion of the material received in the container 24 remains adhered to the cylinder 20, in particular on the outer peripheral side surface 26 thereof.
  • the material 22 adhering to the outer peripheral side surface 26 is transferred to the substrate 12 and subsequently adheres to the substrate 12.
  • the cylinder 20 touches the substrate 12 or at least the material initially adhering to the outer peripheral side surface 26 touches the substrate 12 and is thereby at least partially transferred to the substrate 12 and in particular applied or applied to the substrate 12.
  • the printing press 10 also has a second cylinder 28, which is also referred to as an image cylinder or imaging cylinder, for example.
  • the second cylinder 28 is designed to perform a different from a gravure printing process imaging method, in particular printing method.
  • a gravure printing process imaging method in particular printing method.
  • the at least one by means of the first cylinder 20 Printed layer applied to the substrate 12.
  • at least part of the material 22 initially accommodated in the container 24 is applied to the substrate 12 by means of the cylinder 20, whereby the at least one printing layer is formed from the material 22 applied to the substrate 12.
  • a gravure printing method is performed by means of the cylinder 20.
  • the second cylinder 28 which follows in the direction of movement or conveying direction of the substrate 12 by the printing press 10 directly to the cylinder 20, a different from a gravure printing imaging process is performed.
  • at least a portion of at least one printed layer applied to the substrate 12 is imaged by means of the cylinder 28.
  • the roller 17 is a counter-pressure roller for the second cylinder 28.
  • the second cylinder 28 directly adjoins the first cylinder 20 in the direction of movement of the substrate 12 by the printing press 10, so that no further cylinder is provided in the direction of movement of the substrate 12 by the printing press 10 between the cylinders 20 and 28 is provided, by means of which a material is applied to the substrate 12 or a printed layer applied to the substrate 12 is imaged.
  • the at least one printed layer is applied rotatably to the substrate 12 by means of the cylinder 20.
  • the cylinder 20 is rotated about a rotation axis 30, wherein the rotation axis 30 extends horizontally.
  • the imaging process is performed by the second cylinder 28 as a rotary imaging process.
  • the cylinder 28 is rotated about an axis of rotation 32, wherein the axis of rotation 32 extends horizontally.
  • the axes of rotation 30 and 32 are parallel to each other, wherein the rotation axis 30 and 32, however, are offset or uniaxial to each other.
  • the printing machine 10 further comprises a cylinder 20 and 28 common printing stand 33, on which the cylinders 20 and 28 are at least rotatably mounted.
  • the cylinders 20 and 28 can rotate about the respective axes of rotation 30 and 32 relative to the pressure stand 33.
  • an electronic computing device 34 is provided, which is also referred to as a control unit.
  • the electronic computing device 34 is designed to drive the cylinders 20 and 28 in register as a function of a virtual master axis 36.
  • the printing machine 10 has, for example, at least one reference printing unit 38, which is shown particularly schematically in the figure.
  • the electronic computing device 34 is configured to drive the reference printing unit 38 and the first cylinder 20 as a function of one of the virtual master axis 36, another virtual master axis 40 and the second cylinder 28 to the first cylinder 20, in particular in dependence on the first virtual master axis 36, track.
  • the further virtual master axis 40 is, for example, a virtual main master axis which is superordinate to the first virtual master axis 36.
  • the first virtual leading axis 36 is a virtual Subleitachse which is used to the cylinders 20 and 28, in particular virtually and thus, for example, control or control technology, to couple together and to synchronize.
  • the substrate 12 can be imaged particularly precisely.
  • the virtual master shafts 36 and 40 can be dispensed with, for example, mechanical and thus physically existing couplings, so that the cost can be kept very low.
  • the cylinders 20 and 28 can be driven in a particularly precise and, for example, absolutely angular synchronous manner.
  • the first cylinder 20 is assigned a first drive motor 42, by means of which the first cylinder 20 can be driven or is driven.
  • the second cylinder 28 is assigned a different from the first drive motor 42, in addition to the first drive motor 42 provided second drive motor 44, by means of which the second cylinder 28 is driven or is driven.
  • the drive motors 42 and 44 which are formed for example as electric motors, by means of the electronic Computing device 34 in response to the virtual Subleitachse (virtual master axis 36) driven, whereby the cylinders 20 and 28 are synchronized to each other via the drive motors 42 and 44 by means of the electronic computing device 34 and thereby driven in register.
  • the drive motors 42 and 44 are individual drives, which are not mechanically, but virtually via the virtual master axis 36, that is, in terms of control or regulation technology or signal technology coupled together and thereby synchronized.
  • At least one of the cylinders 20 and 28 is associated, for example, with a side motor designed, for example, as an electric motor, by means of which the at least one cylinder can be displaced in the axial direction of the at least one cylinder relative to the other cylinder and in particular relative to the pressure stand 33 and thus displaced.
  • a side motor designed, for example, as an electric motor
  • the at least one cylinder can be displaced in the axial direction of the at least one cylinder relative to the other cylinder and in particular relative to the pressure stand 33 and thus displaced.
  • the so-called page register can be set.
  • the respective drive motor 42 or 44 respectively, to rotate the respective cylinder 20 or 28, in particular relative to the respective other cylinder 28 or 20, so that the respective cylinder 20 or 28 can be adjusted in its circumferential direction.
  • an angular position of the cylinders 20 and 28 can be adjusted relative to each other, so that the so-called longitudinal register can be adjusted.
  • the longitudinal register and the page register are adjusted by adjusting the cylinders 20 and 28 relative to each other.
  • the cylinders 20 and 28 are driven via the drive motors 42 and 44 such that the set angular position remains fixed, so that the cylinders 20 and 28 are driven in register.
  • the previously set angular position or the previously set longitudinal register is not fixed by a mechanical coupling between the cylinders 20 and 28, but by a signal-technical coupling by the drive motors 42 and 44 are driven by the electronic computing device 34 in response to the virtual master shaft 36 , in particular such that the previously set angular position is maintained.
  • the substrate 12 between the cylinders 20 and 28 has only a small length.
  • the substrate 12 operates so that it, for example, too Voltage and / or changes in length of the substrate 12 comes.
  • the angular position of the cylinders 20 and 28 is adapted to these voltage or length changes and maintained in the manner described by means of the virtual guide shaft 36, so that the print layer can be applied particularly precisely to the substrate 12 and finally imaged.
  • the drive motor 42 is a master or master drive
  • the drive motor 44 is a slave drive or slave, which is tracked to the master.
  • the cylinders 20 and 28, in particular with regard to their angular position always remain aligned the same as previously adjusted or adjusted. If then, in particular as a result of changes in length and / or voltage of the substrate 12, the first cylinder 20 is rotated or rotated, then the second cylinder 28 is also rotated or rotated, thereby tracking the first cylinder 20.
  • the main guide axis is a subordinate control unit central control center, in particular to drive the first cylinder 20 relative to the reference printing unit 38.
  • a combination of gravure cylinder and additional image cylinder is provided in the pressure stand 33, synchronized on the common virtual Subleitachse for imaging of example specially pigmented paints and varnishes, the gravure or by means of gravure printing on the substrate 12th be applied.
  • the image cylinder can act without contact or with contact with the substrate 12, which is also referred to as the substrate web. Due to the virtual Subleitachse remains after a single synchronization of the cylinder 20 and 28, the longitudinal register always suitable for reference, and in a cost effective manner.
  • the printing machine 10 further comprises a register sensor 48, by means of which, for example, the imaged printing layer is detected. In particular, a position of the imaged subregion can thereby be detected. If the detected position differs from a desired desired position, the cylinders 20 and 28 can be adjusted accordingly.
  • an automatic register 52 is provided to realize, for example, a block adjustment of the cylinders 20 and 28.
  • the cylinders 20 and 28, for example, together horizontally and / or vertically adjusted by, for example, the virtual Subleitachse (virtual master axis 36) is adjusted in the longitudinal register, whereby the cylinders 20 and 28 follow angle synchronously.
  • a manual register 54 is provided, by means of which, for example, a manual or autonomous adjustment of the cylinder 20 and 28 can be realized.
  • a drying device 60 adjoins the cylinder 28, through which the substrate 12 provided with the printing layer and imaged is conveyed through.
  • the drying device 60 is followed by a further drying device 62, through which, for example, the substrate 12 is conveyed through.
  • the drying devices 60 and 62 the substrate 12 or the imaged printing layer is dried in order to fix the imaging.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Methods (AREA)

Abstract

Die Erfindung betrifft eine Druckmaschine (10), mit wenigstens einem als Tiefdruckzylinder zum Durchführen eines Tiefdruckverfahrens ausgebildeten ersten Zylinder (20) zum Aufbringen zumindest einer Druckschicht (22) auf ein Substrat (12), mit wenigstens einem zum Durchführen eines von einem Tiefdruckverfahren unterschiedlichen Bebilderungsverfahrens ausgebildeten zweiten Zylinder (28) zum Bebildern zumindest eines Teilbereichs wenigstens einer auf das Substrat (12) aufgebrachten Druckschicht (22), mit einem den Zylindern (20, 28) gemeinsamen Druckständer (33), an welchem die Zylinder (20, 28) zumindest drehbar gelagert sind, und mit einer elektronischen Recheneinrichtung (34), welche dazu ausgebildet ist, die Zylinder (20, 28) in Abhängigkeit von einer virtuellen Leitachse (36) registerhaltig anzutreiben.

Figure imgaf001
The invention relates to a printing machine (10) having at least one first cylinder (20) designed as a gravure cylinder for performing a gravure printing method for applying at least one printing layer (22) to a substrate (12), comprising at least one imaging method for performing a gravure printing process formed second cylinder (28) for imaging at least a portion of at least one of the substrate (12) applied pressure layer (22) with the cylinders (20, 28) common pressure stand (33) on which the cylinder (20, 28) at least are rotatably mounted, and with an electronic computing device (34) which is adapted to drive the cylinders (20, 28) in response to a virtual master axis (36) in register.
Figure imgaf001

Description

Die Erfindung betrifft eine Druckmaschine, insbesondere zur Bebilderung eines Substrats wie beispielsweise einer Bahn, insbesondere einer Papierbahn.The invention relates to a printing machine, in particular for imaging a substrate such as a web, in particular a paper web.

Die DE 10 2009 045 679 B4 offenbart ein Verfahren zur Regelung eines Antriebs wenigstens eines registerhaltig anzutreibenden Rotationskörpers einer Druckmaschine, wobei der registerhaltig anzutreibende Rotationskörper durch einen Antriebsmotor über einen Antriebsstrang und/oder in einem Antriebsverbund rotatorisch angetrieben wird.The DE 10 2009 045 679 B4 discloses a method for controlling a drive of at least one rotary body of a printing press to be driven in register, wherein the rotary body to be driven in register is rotationally driven by a drive motor via a drive train and / or in a drive network.

Der DE 10 2007 021 787 B4 ist ein Verfahren zur Steuerung einer Druckmaschine als bekannt zu entnehmen, mit einer Transportvorrichtung für Werkstücke, mit einer Gravurwalze und mit einer Auftragswalze sowie mit deren Antrieben und Steuerungen und mit Sensoren und Messeinrichtungen, wobei ein Sensor im Einlauf der Druckmaschine die Vorderkante eines einlaufenden Werkstücks detektiert und den Drehwinkel der Gravurwalze und/oder der Auftragswalze bis zum Ort des ersten Kontakts der Auftragswalze mit der Vorderkante des Werkstücks zu dieser synchronisiert wird.Of the DE 10 2007 021 787 B4 discloses a method for controlling a printing press as known, with a transport device for workpieces, with a gravure roll and with an applicator roll and with their drives and controls and with sensors and measuring devices, wherein a sensor detects the leading edge of an incoming workpiece in the inlet of the printing press and synchronizing the rotation angle of the gravure roll and / or the applicator roll to the location of the first contact of the applicator roll with the leading edge of the workpiece.

Außerdem ist aus der US 7 542 175 B2 eine Druckmaschine bekannt, mit einem Flexodruckmodul, welches dazu ausgebildet ist, Bewegungen und Spannungen eines Bahnsubstrats zu variieren. Außerdem ist ein Tiefdruckmodul vorgesehen, welches dazu ausgebildet ist, Bewegungen und Spannungen des Bahnsubstrats zu variieren. Aufgabe der vorliegenden Erfindung ist es, eine Druckmaschine zu schaffen, mittels welcher wenigstens ein Substrat wie beispielsweise eine Bahn, insbesondere eine Papierbahn, besonders vorteilhaft bebildert, insbesondere bedruckt, werden kann.Moreover, from the US Pat. No. 7,542,175 B2 a printing machine known, with a flexographic printing module, which is adapted to vary movements and voltages of a web substrate. In addition, a gravure module is provided which is adapted to vary movements and stresses of the web substrate. The object of the present invention is to provide a printing machine by means of which at least one substrate, for example a web, in particular a paper web, can be imaged particularly advantageously, in particular imprinted.

Diese Aufgabe wird erfindungsgemäß durch eine Druckmaschine mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen mit zweckmäßigen Weiterbildungen der Erfindung sind in den übrigen Ansprüchen angegeben.This object is achieved by a printing press with the features of claim 1. Advantageous embodiments with expedient developments of the invention are specified in the remaining claims.

Die erfindungsgemäße Druckmaschine umfasst wenigstens einen als Tiefdruckzylinder zum Durchführen eines Tiefdruckverfahrens ausgebildeten ersten Zylinder zum Aufbringen zumindest einer Druckschicht auf ein Substrat wie beispielsweise eine Bahn, insbesondere eine Papierbahn, wobei das Substrat beispielsweise biegeschlaff beziehungsweise formlabil ist. Mit anderen Worten ist der erste Zylinder als Tiefdruckzylinder ausgebildet, mittels welchem ein Tiefdruckverfahren durchführbar ist. Dabei ist mittels des ersten Zylinders die zumindest eine Druckschicht auf das Substrat aufbringbar.The printing machine according to the invention comprises at least one first cylinder designed as a gravure cylinder for carrying out a gravure printing method for applying at least one printing layer to a substrate such as a web, in particular a paper web, wherein the substrate is, for example, limp or dimensionally unstable. In other words, the first cylinder is designed as a gravure cylinder, by means of which a gravure printing method can be performed. In this case, by means of the first cylinder, the at least one printing layer can be applied to the substrate.

Die Druckmaschine umfasst ferner wenigstens einen zum Durchführen eines von einem Tiefdruckverfahren unterschiedlichen Bebilderungsverfahrens ausgebildeten zweiten Zylinder zum Bebildern zumindest eines Teilbereichs wenigstens einer auf das Substrat aufgebrachten Druckschicht. Bei der wenigstens einen auf das Substrat aufgebrachten Druckschicht, die beziehungsweise deren Teilbereich mittels des zweiten Zylinders zu bebildern ist, handelt es sich beispielsweise um die zuvor genannte, zumindest eine Druckschicht, welche mittels des ersten Zylinders auf das Substrat aufgebracht wird beziehungsweise wurde. Unter dem Merkmal, dass der zweite Zylinder zum Durchführen eines von einem Tiefdruckverfahren unterschiedlichen Bebilderungsverfahrens ausgebildet ist, ist insbesondere zu verstehen, dass es sich bei dem Bebilderungsverfahren, welches mittels des zweiten Zylinders durchführbar ist beziehungsweise durchgeführt wird, nicht um ein Tiefdruckverfahren handelt.The printing press further comprises at least one second cylinder designed to perform a different printing process from a gravure printing method for imaging at least one subregion of at least one printed layer applied to the substrate. The at least one printing layer applied to the substrate, which is to be imaged by means of the second cylinder, is, for example, the aforementioned, at least one printing layer, which is applied to the substrate by means of the first cylinder. By the feature that the second cylinder is configured to perform a different from an intaglio printing method, it is to be understood in particular that the imaging process performed by the second cylinder is not a gravure printing process.

Die erfindungsgemäße Druckmaschine umfasst ferner einen den Zylindern gemeinsamen Druckständer, an welchem die Zylinder zumindest drehbar gelagert sind. Außerdem umfasst die erfindungsgemäße Druckmaschine eine elektronische Recheneinrichtung, welche dazu ausgebildet ist, die Zylinder in Abhängigkeit von einer virtuellen Leitachse registerhaltig anzutreiben. Mit anderen Worten ist es im Rahmen eines Verfahren zum Betreiben der erfindungsgemäßen Druckmaschine beziehungsweise im Rahmen eines Verfahrens zum Bebildern zumindest des Teilbereichs des Substrats vorgesehen, dass die zumindest drehbar an dem gemeinsamen Druckständer gelagerten Zylinder mittels der elektronischen Recheneinrichtung in Abhängigkeit von der genannten virtuellen Leitachse registerhaltig angetrieben und somit gesteuert beziehungsweise geregelt werden.The printing press according to the invention further comprises a pressure stand which is common to the cylinders and to which the cylinders are at least rotatably mounted. In addition, the printing press according to the invention comprises an electronic Computing device which is designed to drive the cylinders in register depending on a virtual master axis. In other words, it is provided as part of a method for operating the printing press according to the invention or in the context of a method for imaging at least the portion of the substrate, that the at least rotatably mounted on the common printing stand cylinder by means of the electronic computing device in dependence on said virtual master axis in register driven and thus controlled or regulated.

Wie aus dem allgemeinen Stand der Technik im Bereich von Druckverfahren und Druckmaschinen hinlänglich bekannt ist, ist beispielsweise unter der virtuellen Leitachse zu verstehen, dass die Zylinder nicht oder nicht nur mechanisch miteinander gekoppelt und somit nicht oder nicht nur mechanisch zueinander synchronisiert sind, sondern die Zylinder sind beispielsweise mechanisch entkoppelt und werden dabei mittels der elektronischen Recheneinrichtung steuerungs- oder regelungstechnisch synchronisiert. Insbesondere kann durch den Einsatz der virtuellen und somit körperlich nicht vorhandenen, sondern steuerungs- beziehungsweise regelungstechnisch und somit elektronisch realisierten Leitachse eine Königswelle entfallen, sodass beispielsweise eine Königswelle zum mechanischen Koppeln und Synchronisieren der Zylinder entfallen kann, um dadurch beispielsweise einen mechanischen Verbund zwischen den Zylindern aufzulösen beziehungsweise zu vermeiden.As is well known from the general state of the art in the field of printing processes and printing presses, the virtual master axis means, for example, that the cylinders are not or not only mechanically coupled to one another and thus not or not only mechanically synchronized with one another, but rather the cylinders For example, are mechanically decoupled and are thereby synchronized by means of the electronic computing device control or regulation technology. In particular, can be omitted by the use of virtual and thus physically non-existent, but control or control technology and thus electronically realized lead a king wave so that, for example, a vertical wave for mechanical coupling and synchronization of the cylinder can be omitted, thereby for example a mechanical bond between the cylinders to dissolve or avoid.

Die virtuelle Leitachse wird insbesondere dadurch realisiert, dass den Zylindern jeweilige Einzelantriebe zum Antreiben der Zylinder zugeordnet sind, wobei die Einzelantriebe über die virtuelle Leitachse und somit steuerungs- beziehungsweise regelungstechnisch, nicht jedoch physisch beziehungsweise mechanisch, miteinander gekoppelt beziehungsweise synchronisiert sind. Dies erfolgt beispielsweise durch eine Lageregelung, welche mittels der elektronischen Recheneinrichtung durchgeführt wird. Die Einzelantriebe enthalten dabei beispielsweise von der Lageregelung oder von einer Bewegungssteuerung, insbesondere zumindest im Wesentlichen gleichzeitig, aktuelle Positionen der Leitachse als Positionssollwerte. Die Positionssollwerte erhalten die Antriebe beispielsweise über ein insbesondere als Echtzeit-Bussystem ausgebildetes Bussystem. Dabei übermittelt die elektronische Recheneinrichtung beispielsweise elektrische Signale, welche die jeweiligen Positionssollwerte charakterisieren beziehungsweise umfassen. Die Einzelantrieb empfangen die Signale und somit die Positionssollwerte und bewegen die Zylinder beispielsweise, insbesondere geregelt, in Ist-Positionen, die vorzugsweise den Positionssollwerten entsprechen oder nur geringfügig, beispielsweise aufgrund von technisch bedingten Regelungenauigkeiten, von den Positionssollwerten abweichen.The virtual master axis is realized, in particular, in that the cylinders are assigned respective individual drives for driving the cylinders, wherein the individual drives are coupled or synchronized with each other via the virtual master axis and thus with regard to control or regulation, but not physically or mechanically. This is done for example by a position control, which is carried out by means of the electronic computing device. The individual drives contain, for example, the position control or a motion control, in particular at least substantially simultaneously, current positions of the master axis as position setpoints. The position setpoints are obtained by the drives, for example, via a bus system designed in particular as a real-time bus system. The electronic computing device transmits, for example, electrical signals which characterize the respective position setpoints or include. The individual drive receive the signals and thus the position setpoints and move the cylinders, for example, regulated, in actual positions that preferably correspond to the position setpoints or only slightly, for example, due to technical control inaccuracies, deviate from the position setpoints.

Durch die Verwendung der virtuellen Leitachse ist es möglich, die beispielsweise als Druckzylinder ausgebildeten und im Rahmen eines Druckverfahrens zum Einsatz kommenden Zylinder, absolut, das heißt zu 100 Prozent winkelsynchron arbeiten zu lassen, sodass diese beispielsweise über nur eine Register-Regelstelle gesteuert beziehungsweise geregelt werden können, wodurch Kosten im Vergleich zu herkömmlichen Druckmaschinen eingespart werden können. Ferner wird beispielsweise ein Bedien- beziehungsweise Handlingsaufwand für eine Person vereinfacht, und zudem kann eine autonome Verstellung des ersten Zylinders und/oder des zweiten Zylinders, insbesondere zu einem Referenzdruckwert, ermöglicht werden.Through the use of the virtual master axis, it is possible, for example, to make the cylinders, for example, designed as pressure cylinders and used in the context of a printing process, absolute, ie 100% angular synchronous, so that they are controlled or regulated, for example, by only one register control point can be saved, which costs compared to conventional printing presses. Furthermore, for example, an operating or handling effort for a person is simplified, and also an autonomous adjustment of the first cylinder and / or the second cylinder, in particular to a reference pressure value, can be made possible.

Bei dem Bebilderungsverfahren handelt es sich insbesondere um ein rotatives Bebilderungsverfahren. Das Bebilderungsverfahren kann insbesondere ein Flexodruck beziehungsweise ein Flexodruckverfahren, eine Prägung beziehungsweise ein Prägeverfahren, eine Holographie beziehungsweise ein Holographieverfahren und/oder eine magnetische Ausrichtung umfassen.The imaging process is in particular a rotary imaging process. The imaging process may in particular comprise a flexographic printing or a flexographic printing process, an embossing or embossing process, a holography or a holographic process and / or a magnetic alignment.

Die Druckschicht, welche mittels des ersten Zylinders auf das beispielsweise als, insbesondere biegeschlaffe beziehungsweise formlabile, Bahn beziehungsweise Papierbahn ausgebildete Substrat aufgebracht und/oder mittels des zweiten Zylinders bebildert wird, umfasst beispielsweise eine Flüssigkeit wie eine Farbe, einen Lack oder dergleichen.The printing layer, which is applied by means of the first cylinder to the substrate, which is designed, for example, as a particularly pliable or form-stable web or paper web, and / or is imaged by the second cylinder comprises, for example, a liquid such as a paint, a lacquer or the like.

Der zweite Zylinder wird beispielsweise verwendet, um einen Flexodruck beziehungsweise ein Flexodruckverfahren durchzuführen. Hierzu weist beispielsweise der zweite Zylinder wenigstens eine Flexoplatte auf, die beispielsweise leicht in die Druckschicht drückt, um diese zumindest teilweise zu bebildern. Somit wird beispielsweise mittels des zweiten Zylinders ein berührungsempfindliches Bebilderungsverfahren, insbesondere Druckverfahren, durchgeführt, in dessen Rahmen der zweite Zylinder die Druckschicht berührt und beispielsweise zumindest teilweise in diese eintaucht. Alternativ ist es denkbar, dass mittels des zweiten Zylinders ein berührungsloses Bebilderungsverfahren, insbesondere Druckverfahren, durchgeführt wird, in dessen Rahmen der zweite Zylinder die Druckschicht während des Durchführens des Bebilderungsverfahrens nicht berührt. Hierzu ist der zweite Zylinder beispielsweise dazu ausgebildet, Magnetkräfte bereitzustellen. Diese Magnetkräfte wirken beispielsweise mit in der Druckschicht aufgenommenen Partikeln, insbesondere Plättchen, zusammen, wodurch die Partikel beziehungsweise Plättchen ausgerichtet werden. Auf diese Weise kann ein berührungsloses Bebilderungsverfahren durchgeführt werden. Insgesamt ist erkennbar, dass sich bei der erfindungsgemäßen Druckmaschine ein besonders vorteilhafter Synchronlauf der Zylinder auf besonders einfache und insbesondere kostengünstige Weise realisieren lässt, ohne dass eine insbesondere körperlich vorhandene beziehungsweise mechanische Registersteuerung erforderlich ist.The second cylinder is used, for example, to perform a flexographic printing or a flexographic printing process. For this purpose, for example, the second cylinder has at least one flexo plate which, for example, presses lightly into the printing layer in order to at least partially image it. Thus, for example by means of the second cylinder, a touch-sensitive imaging method, in particular printing method, carried out, in whose context the second cylinder contacts the printing layer and, for example, at least partially immersed in it. Alternatively, it is conceivable that by means of the second cylinder a non-contact imaging method, in particular printing method, is carried out, in the framework of which the second cylinder does not touch the printing layer during the execution of the imaging process. For this purpose, the second cylinder is designed, for example, to provide magnetic forces. These magnetic forces act, for example, together with particles received in the printing layer, in particular platelets, whereby the particles or platelets are aligned. In this way, a non-contact imaging process can be performed. Overall, it can be seen that in the printing press according to the invention, a particularly advantageous synchronous operation of the cylinder can be realized in a particularly simple and, in particular, cost-effective manner, without requiring a particularly physically present or mechanical register control.

In vorteilhafter Ausgestaltung der Erfindung ist dem ersten Zylinder ein erster Antriebsmotor zum Antreiben des ersten Zylinders zugeordnet. Ferner ist dem zweiten Zylinder eine von dem ersten Antriebsmotor unterschiedlicher, zusätzlich zu dem ersten Antriebsmotor vorgesehener zweiter Antriebsmotor zum Antreiben des zweiten Zylinders zugeordnet. Der jeweilige Antriebsmotor ist beispielsweise als Elektromotor ausgebildet. Die Antriebsmotoren sind beispielsweise die zuvor genannten Einzelantriebe. Dabei ist die elektronische Recheneinrichtung dazu ausgebildet, die Antriebsmotoren in Abhängigkeit von der virtuellen Leitachse anzusteuern und dadurch die Zylinder über die Antriebsmotoren in Abhängigkeit von der virtuellen Leitachse registerhaltig anzutreiben. Auf diese Weise können die Zylinder besonders präzise synchronisiert beziehungsweise synchron zueinander angetrieben werden, sodass das Substrat besonders präzise und somit optisch ansprechend bebildert werden kann. Diese präzise Synchronisierung der Zylinder ist dabei ohne mechanische beziehungsweise körperliche Kopplung der Zylinder realisierbar, sodass die Teileanzahl und die Kosten der Druckmaschine besonders gering gehalten werden können.In an advantageous embodiment of the invention, the first cylinder is associated with a first drive motor for driving the first cylinder. Further, the second cylinder is assigned a different from the first drive motor, in addition to the first drive motor provided second drive motor for driving the second cylinder. The respective drive motor is designed for example as an electric motor. The drive motors are, for example, the aforementioned individual drives. In this case, the electronic computing device is designed to control the drive motors in dependence on the virtual master axis and thereby drive the cylinders in register via the drive motors as a function of the virtual master axis. In this way, the cylinders can be synchronized particularly precisely or driven synchronously with each other, so that the substrate can be imaged particularly precisely and thus visually appealing. This precise synchronization of the cylinder is feasible without mechanical or physical coupling of the cylinder, so that the number of parts and the cost of the printing press can be kept very low.

Bei einer besonders vorteilhaften Ausführungsform der Erfindung ist der zweite Zylinder dazu ausgebildet, zumindest einen Teilbereich der zumindest einen mittels des Tiefdruckzylinders auf das Substrat aufgebrachten Druckschicht zu bebildern. Somit kann beispielsweise die zumindest eine Druckschicht eine von der wenigstens einen Druckschicht unterschiedliche Druckschicht sein. Jedoch ist es vorzugsweise vorgesehen, dass die zumindest eine Druckschicht die wenigstens eine Druckschicht ist.In a particularly advantageous embodiment of the invention, the second cylinder is designed to image at least a portion of the at least one pressure layer applied to the substrate by means of the gravure cylinder. Consequently For example, the at least one print layer may be a different print layer from the at least one print layer. However, it is preferably provided that the at least one print layer is the at least one print layer.

Eine besonders präzise Bebilderung lässt sich dadurch realisieren, dass die Zylinder in radialer Richtung des jeweiligen Zylinders relativ zueinander verstellbar sind. Somit ist beispielsweise wenigstens einer der Zylinder in radialer Richtung des einen Zylinders relativ zu dem anderen Zylinder sowie insbesondere relativ zu dem Druckständer verstellbar, das heißt bewegbar. Hierbei kann insbesondere vorgesehen sein, dass einer der Zylinder, insbesondere der zweite Zylinder, relativ zu dem anderen Zylinder, insbesondere dem ersten Zylinder, in radialer Richtung des einen Zylinders und dabei horizontal verstellbar, insbesondere verschiebbar, ist. Wird beispielsweise der eine Zylinder horizontal und insbesondere in radialer Richtung des einen Zylinders relativ zu dem anderen Zylinder und insbesondere relativ zu dem Druckständer verschoben, so bleibt beispielsweise der andere Zylinder fix, das heißt insbesondere ortsfest. Dadurch ist es beispielsweise möglich, den einen Zylinder an eine andere Walze, insbesondere an eine Gegendruckwalze, anzustellen, um dadurch beispielsweise die Qualität und Stärke der zusätzlichen Bebilderung auf dem Substrat zu justieren.A particularly accurate imaging can be realized in that the cylinders are adjustable in the radial direction of the respective cylinder relative to each other. Thus, for example, at least one of the cylinders in the radial direction of the one cylinder is adjustable relative to the other cylinder and in particular relative to the pressure stand, that is movable. In this case, it can be provided, in particular, that one of the cylinders, in particular the second cylinder, relative to the other cylinder, in particular the first cylinder, in the radial direction of the one cylinder and thereby horizontally adjustable, in particular displaceable. If, for example, the one cylinder is displaced horizontally and in particular in the radial direction of one cylinder relative to the other cylinder and in particular relative to the pressure stand, the other cylinder, for example, remains fixed, that is to say in particular stationary. As a result, it is possible, for example, to adjust one cylinder to another roller, in particular to a counter-pressure roller, in order thereby to adjust, for example, the quality and strength of the additional imaging on the substrate.

Eine weitere Ausführungsform zeichnet sich dadurch aus, dass die Zylinder in axialer Richtung des jeweiligen Zylinders relativ zueinander verstellbar sind. Somit ist beispielsweise wenigstens einer der Zylinder in axialer Richtung des einen Zylinders relativ zu dem anderen Zylinder und beispielsweise relativ zu dem Druckständer verstellbar, das heißt bewegbar beziehungsweise verschiebbar. Ferner ist es vorzugsweise vorgesehen, dass die Zylinder relativ zueinander radial und/oder axial verstellbar sind, um dadurch die Zylinder besonders präzise justieren zu können. Nach Justierung der Zylinder nehmen diese jeweilige Positionen beziehungsweise Lagen, insbesondere relativ zueinander, ein, wobei diese Positionen fixiert werden, insbesondere mittels der virtuellen Leitachse. Insbesondere werden die Zylinder, insbesondere relativ zueinander, mittels der virtuellen Leitachse gekoppelt, wodurch insbesondere ihre Ausrichtung relativ zueinander, virtuell, das heißt ohne mechanische beziehungsweise körperlich vorhandene Registersteuerung oder Koppeleinrichtung fixiert und beibehalten wird. Dadurch können die Kosten besonders gering gehalten werden.Another embodiment is characterized in that the cylinders are adjustable in the axial direction of the respective cylinder relative to each other. Thus, for example, at least one of the cylinders in the axial direction of the one cylinder is adjustable relative to the other cylinder and, for example, relative to the pressure stand, that is movable or displaceable. Furthermore, it is preferably provided that the cylinders are radially and / or axially adjustable relative to one another in order to be able to adjust the cylinders particularly precisely. After adjustment of the cylinders, these take up respective positions or positions, in particular relative to one another, wherein these positions are fixed, in particular by means of the virtual guide axis. In particular, the cylinders, in particular relative to one another, are coupled by means of the virtual master axis, whereby their orientation in particular relative to each other, virtually, that is without mechanical or physically existing register control or coupling device is fixed and maintained. As a result, the costs can be kept very low.

Bei einer besonders vorteilhaften Ausführungsform der Erfindung ist der zweite Zylinder dazu ausgebildet, zumindest teilweise in die wenigstens eine Druckschicht einzutauchen und dadurch zumindest den Teilbereich der wenigstens einen Druckschicht durch Berührung zu bebildern. Bei dieser Ausführungsform ist es somit vorgesehen, dass der zweite Zylinder dazu ausgebildet ist, das Bebilderungsverfahren in Form eines berührungsempfindlichen Bebilderungsverfahrens durchzuführen, wodurch eine besonders vorteilhafte Bebilderung realisiert werden kann.In a particularly advantageous embodiment of the invention, the second cylinder is designed to immerse at least partially in the at least one print layer and thereby to image by contact at least the partial area of the at least one print layer. In this embodiment, it is thus provided that the second cylinder is designed to perform the imaging process in the form of a touch-sensitive imaging process, whereby a particularly advantageous imaging can be realized.

Als weiter besonders vorteilhaft hat es sich gezeigt, wenn der zweite Zylinder dazu ausgebildet ist, zumindest den Teilbereich der wenigstens einen Druckschicht bezogen auf die Druckschicht berührungslos zu bebildern, sodass der zweite Zylinder die Druckschicht nicht berührt, um zumindest den Teilbereich der Druckschicht zu bebildern.As further particularly advantageous, it has been shown that the second cylinder is designed to contactlessly image at least the partial area of the at least one printed layer relative to the printing layer so that the second cylinder does not touch the printed layer in order to image at least the partial area of the printed layer.

Hierbei hat es sich als besonders vorteilhaft gezeigt, wenn der zweite Zylinder dazu ausgebildet ist, magnetische Kräfte bereitzustellen und mittels der magnetischen Kräfte zumindest den Teilbereich des wenigstens einen Substrats berührungslos zu bebildern.In this case, it has proven to be particularly advantageous if the second cylinder is designed to provide magnetic forces and to image by means of the magnetic forces at least the partial region of the at least one substrate without contact.

Eine weitere Ausführungsform zeichnet sich dadurch aus, dass der zweite Zylinder unmittelbar an den ersten Zylinder anschließt. Darunter ist zu verstehen, dass, insbesondere in Lauf- beziehungsweise Bewegungsrichtung des Substrats durch die beziehungsweise entlang der Druckmaschine, zwischen den Zylindern kein Zylinder zum Bebildern und/oder zum Aufbringen eines Materials auf das Substrat angeordnet ist.Another embodiment is characterized in that the second cylinder directly adjoins the first cylinder. This is understood to mean that, in particular in the direction of travel or movement of the substrate through or along the printing press, no cylinder is arranged between the cylinders for imaging and / or for applying a material to the substrate.

Schließlich hat es sich als vorteilhaft gezeigt, wenn die Druckmaschine wenigstens ein Referenzdruckwerk aufweist. Dabei ist die elektronische Recheneinrichtung dazu ausgebildet, das Referenzdruckwerk und den ersten Zylinder in Abhängigkeit von einer der virtuellen Leitachse übergeordneten, weiteren virtuellen Leitachse anzutreiben und den zweiten Zylinder dem ersten Zylinder nachzuführen. Bei dieser Ausführungsform ist somit die erste virtuelle Leitachse eine virtuelle Subleitachse, welche der weiteren virtuellen Leitachse untergeordnet ist. Die weitere virtuelle Leitachse ist somit beispielsweise eine virtuelle Hauptleitachse, der die Subleitachse untergeordnet ist. Mittels der virtuellen Hauptleitachse werden beispielsweise der erste Zylinder und das Referenzdruckwerk zueinander synchronisiert und dabei insbesondere registerhaltig angetrieben. Da ferner der zweite Zylinder dem ersten nachgeführt wird, ergibt sich ein registerhaltiger und somit besonders präziser Prozess, welcher aufgrund der Verwendung der virtuellen Leitachsen besonders kostengünstig realisiert werden kann. Da die virtuellen Leitachsen zum Einsatz kommen, kann beispielsweise auf mechanische Kopplungen zwischen den Zylindern und zwischen dem ersten Zylinder und dem Referenzdruckwerk verzichtet werden, wobei der zuvor genannte registerhaltige Prozess virtuell, das heißt steuerungs- beziehungsweise regelungstechnisch mithilfe der elektronischen Recheneinrichtung und der virtuellen Leitachsen realisiert wird. Da dabei der zweite Zylinder mittels der virtuellen Subleitachse dem ersten Zylinder nachgeführt wird, kann eine besonders präzise Bebilderung dargestellt werden.Finally, it has proven to be advantageous if the printing press has at least one reference printing unit. In this case, the electronic computing device is designed to drive the reference printing unit and the first cylinder as a function of one of the virtual master axis superordinate, another virtual master axis and nachzuführen the second cylinder to the first cylinder. In this embodiment, therefore, the first virtual leading axis is a virtual Subleitachse, which the other is subordinate to the virtual leading axis. The further virtual master axis is thus, for example, a virtual main master axis to which the subordinate axis is subordinate. By means of the virtual main axis, for example, the first cylinder and the reference printing unit are synchronized with each other and in particular driven in register. Further, since the second cylinder is tracked to the first, results in a register-based and thus very precise process, which can be realized particularly cost-effective due to the use of the virtual leading axes. Since the virtual master axles are used, it is possible, for example, to dispense with mechanical couplings between the cylinders and between the first cylinder and the reference printing unit, with the aforementioned register-containing process being realized virtually, that is to say by control or regulation using the electronic computing device and the virtual master axles becomes. Since the second cylinder is tracked by means of the virtual Subleitachse the first cylinder, a particularly accurate imaging can be displayed.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie anhand der Zeichnung. Die vorstehend in der Beschreibung genannten Merkmale und Merkmalskombinationen sowie die nachfolgend in der Figurenbeschreibung genannten und/oder in der einzigen Figur alleine gezeigten Merkmale und Merkmalskombinationen sind nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar, ohne den Rahmen der Erfindung zu verlassen.Further advantages, features and details of the invention will become apparent from the following description of a preferred embodiment and from the drawing. The features and feature combinations mentioned above in the description as well as the features and feature combinations mentioned below in the figure description and / or alone in the single figure can be used not only in the respectively indicated combination but also in other combinations or alone, without the frame to leave the invention.

Die Zeichnung zeigt in der einzigen Fig. eine schematische Seitenansicht einer erfindungsgemäßen Druckmaschine.The drawing shows in the single FIGURE is a schematic side view of a printing machine according to the invention.

Die einzige Fig. zeigt in einer schematischen Seitenansicht eine im Ganzen mit 10 bezeichnete Druckmaschine zum Durchführen eines Druckverfahrens, in dessen Rahmen beispielsweise ein Substrat 12 zumindest in einem Teilbereich bebildert wird. Das Substrat 12 wird entlang der beziehungsweise durch die Druckmaschine 10 entlang einer Bewegungsrichtung gefördert, welche in der Fig. durch Pfeile 14 veranschaulicht ist. Das Substrat ist biegeschlaff beziehungsweise formlabil, wobei das Substrat 12 beispielsweise als Bahn, insbesondere als Papierbahn, ausgebildet ist. Geführt und gespannt wird das Substrat 12 beispielsweise mittels jeweiliger Walzen 16 und 17 der Druckmaschine 10, wobei - wie in der Fig. durch einen Doppelpfeil 18 veranschaulicht ist - wenigstens eine der Walzen 16 und 17 vertikal und/oder horizontal verstellbar, das heißt bewegbar ist. Dadurch kann beispielsweise das Substrat 12 hinsichtlich seiner Spannung eingestellt werden.The single FIGURE shows a schematic side view of a generally designated 10 printing press for performing a printing process, in the context of which, for example, a substrate 12 is imaged at least in a partial area. The substrate 12 is conveyed along or through the printing press 10 along a direction of movement, which is illustrated by arrows 14 in the figure. The substrate is limp and form-labile, the Substrate 12, for example, as a web, in particular as a paper web is formed. The substrate 12 is guided and tensioned, for example, by means of respective rollers 16 and 17 of the printing machine 10, wherein - as shown in the figure by a double arrow 18 - at least one of the rollers 16 and 17 vertically, and / or horizontally adjustable, that is movable , As a result, for example, the substrate 12 can be adjusted in terms of its voltage.

Die Druckmaschine 10 umfasst einen ersten Zylinder 20, welcher als Tiefdruckzylinder zum Durchführen eines Tiefdruckverfahrens ausgebildet ist. Ferner ist der erste Zylinder 20 dazu ausgebildet, ein Material 22 auf das Substrat 12 auszubringen, um dadurch aus dem Material zumindest eine Druckschicht auszubilden. Somit wird mittels des ersten Zylinders 20 (Tiefdruckzylinder) die zumindest eine Druckschicht aus dem Material 22 auf das Substrat 12 aufgebracht. Das Material 22 ist beispielsweise eine Flüssigkeit, wobei das Material 22 insbesondere eine Farbe oder ein Lack ist.The printing machine 10 comprises a first cylinder 20, which is designed as a gravure cylinder for performing a gravure printing process. Further, the first cylinder 20 is adapted to apply a material 22 to the substrate 12 to thereby form at least one print layer from the material. Thus, the at least one printing layer of the material 22 is applied to the substrate 12 by means of the first cylinder 20 (gravure cylinder). The material 22 is, for example, a liquid, wherein the material 22 is in particular a paint or a lacquer.

Aus der Fig. ist erkennbar, dass das Material 22 in einem Behältnis 24 der Druckmaschine 10 aufgenommen ist, wobei der erste Zylinder 20 in das Material 22 eintaucht. Dadurch bleibt ein Teil des in dem Behältnis 24 aufgenommenen Materials an dem Zylinder 20, insbesondere an dessen außenumfangsseitiger Mantelfläche 26, haften. Das an der außenumfangsseitigen Mantelfläche 26 haftende Material 22 wird auf das Substrat 12 übertragen und bleibt in der Folge an dem Substrat 12 haften. Hierzu berührt beispielsweise der Zylinder 20 das Substrat 12 beziehungsweise zumindest das zunächst an der außenumfangsseitigen Mantelfläche 26 haftende Material berührt das Substrat 12 und wird dadurch zumindest teilweise auf das Substrat 12 übertragen und insbesondere auf das Substrat 12 aufgetragen beziehungsweise aufgebracht.From the Fig. It can be seen that the material 22 is received in a container 24 of the printing machine 10, wherein the first cylinder 20 is immersed in the material 22. As a result, a portion of the material received in the container 24 remains adhered to the cylinder 20, in particular on the outer peripheral side surface 26 thereof. The material 22 adhering to the outer peripheral side surface 26 is transferred to the substrate 12 and subsequently adheres to the substrate 12. For this purpose, for example, the cylinder 20 touches the substrate 12 or at least the material initially adhering to the outer peripheral side surface 26 touches the substrate 12 and is thereby at least partially transferred to the substrate 12 and in particular applied or applied to the substrate 12.

Die Druckmaschine 10 weist ferner einen zweiten Zylinder 28 auf, welcher beispielsweise auch als Imagezylinder oder Bebilderungszylinder bezeichnet wird. Der zweite Zylinder 28 ist zum Durchführen eines von einem Tiefdruckverfahren unterschiedlichen Bebilderungsverfahrens, insbesondere Druckverfahrens, ausgebildet. Mit anderen Worten, im Rahmen eines Verfahrens zum Betreiben der Druckmaschine 10 beziehungsweise im Rahmen eines Verfahrens zum Bebildern zumindest eines Teilbereichs des Substrats 12 wird mittels des ersten Zylinders 20 die zumindest eine Druckschicht auf das Substrat 12 aufgebracht. Hierzu wird zumindest ein Teil des zunächst in dem Behältnis 24 aufgenommenen Materials 22 mittels des Zylinders 20 auf das Substrat 12 aufgebracht, wodurch aus dem auf das Substrat 12 aufgebrachten Material 22 die zumindest eine Druckschicht gebildet wird. Dabei wird mittels des Zylinders 20 ein Tiefdruckverfahren durchgeführt. Mittels des zweiten Zylinders 28, welcher in Bewegungs- beziehungsweise Förderrichtung des Substrats 12 durch die Druckmaschine 10 unmittelbar auf den Zylinder 20 folgt, wird ein von einem Tiefdruckverfahren unterschiedliches Bebilderungsverfahren durchgeführt. Im Rahmen des Bebilderungsverfahrens wird zumindest ein Teilbereich wenigstens einer auf das Substrat 12 aufgebrachten Druckschicht mittels des Zylinders 28 bebildert. Bei der wenigstens einen auf das Substrat 12 aufgebrachten Druckschicht, welche mittels des Zylinders 28 bebildert wird, handelt es sich vorzugsweise um die zuvor genannte, zumindest eine Druckschicht, welche mittels des Zylinders 20 auf das Substrat 12 aufgebracht wird beziehungsweise wurde. Beispielsweise ist die Walze 17 eine Gegendruckwalze für den zweiten Zylinder 28.The printing press 10 also has a second cylinder 28, which is also referred to as an image cylinder or imaging cylinder, for example. The second cylinder 28 is designed to perform a different from a gravure printing process imaging method, in particular printing method. In other words, in the context of a method for operating the printing press 10 or in the context of a method for imaging at least a partial region of the substrate 12, the at least one by means of the first cylinder 20 Printed layer applied to the substrate 12. For this purpose, at least part of the material 22 initially accommodated in the container 24 is applied to the substrate 12 by means of the cylinder 20, whereby the at least one printing layer is formed from the material 22 applied to the substrate 12. In this case, a gravure printing method is performed by means of the cylinder 20. By means of the second cylinder 28, which follows in the direction of movement or conveying direction of the substrate 12 by the printing press 10 directly to the cylinder 20, a different from a gravure printing imaging process is performed. In the context of the imaging process, at least a portion of at least one printed layer applied to the substrate 12 is imaged by means of the cylinder 28. In the case of the at least one printed layer applied to the substrate 12, which is imaged by means of the cylinder 28, it is preferably the aforementioned, at least one printing layer, which is or was applied to the substrate 12 by means of the cylinder 20. For example, the roller 17 is a counter-pressure roller for the second cylinder 28.

Aus der Fig. ist dabei erkennbar, dass sich der zweite Zylinder 28 in Bewegungsrichtung des Substrats 12 durch die Druckmaschine 10 unmittelbar an den ersten Zylinder 20 anschließt, sodass in Bewegungsrichtung des Substrats 12 durch die Druckmaschine 10 zwischen den Zylindern 20 und 28 kein weiterer Zylinder vorgesehen ist, mittels welchem ein Material auf das Substrat 12 aufgebracht oder eine auf das Substrat 12 aufgebrachte Druckschicht bebildert wird.It can be seen from the figure that the second cylinder 28 directly adjoins the first cylinder 20 in the direction of movement of the substrate 12 by the printing press 10, so that no further cylinder is provided in the direction of movement of the substrate 12 by the printing press 10 between the cylinders 20 and 28 is provided, by means of which a material is applied to the substrate 12 or a printed layer applied to the substrate 12 is imaged.

Bei dem in der Fig. veranschaulichten Ausführungsbeispiel ist es vorgesehen, dass die zumindest eine Druckschicht mittels des Zylinders 20 rotativ auf das Substrat 12 aufgebracht wird. Hierzu wird der Zylinder 20 um eine Drehachse 30 gedreht, wobei die Drehachse 30 horizontal verläuft. Ferner wird das Bebilderungsverfahren mittels des zweiten Zylinders 28 als rotatives Bebilderungsverfahren durchgeführt. Hierzu wird der Zylinder 28 um eine Drehachse 32 gedreht, wobei auch die Drehachse 32 horizontal verläuft. Beispielsweise verlaufen die Drehachsen 30 und 32 parallel zueinander, wobei die Drehachse 30 und 32 jedoch versetzt beziehungsweise desachsiert zueinander sind.In the exemplary embodiment illustrated in the FIGURE, it is provided that the at least one printed layer is applied rotatably to the substrate 12 by means of the cylinder 20. For this purpose, the cylinder 20 is rotated about a rotation axis 30, wherein the rotation axis 30 extends horizontally. Further, the imaging process is performed by the second cylinder 28 as a rotary imaging process. For this purpose, the cylinder 28 is rotated about an axis of rotation 32, wherein the axis of rotation 32 extends horizontally. For example, the axes of rotation 30 and 32 are parallel to each other, wherein the rotation axis 30 and 32, however, are offset or uniaxial to each other.

Die Druckmaschine 10 umfasst ferner einen den Zylindern 20 und 28 gemeinsamen Druckständer 33, an welchem die Zylinder 20 und 28 zumindest drehbar gelagert sind. Somit können sich die Zylinder 20 und 28 um die jeweiligen Drehachsen 30 und 32 relativ zu dem Druckständer 33 drehen. Schließlich ist eine elektronische Recheneinrichtung 34 vorgesehen, welche auch als Steuergerät bezeichnet wird. Die elektronische Recheneinrichtung 34 ist dazu ausgebildet, die Zylinder 20 und 28 in Abhängigkeit von einer virtuellen Leitachse 36 registerhaltig anzutreiben.The printing machine 10 further comprises a cylinder 20 and 28 common printing stand 33, on which the cylinders 20 and 28 are at least rotatably mounted. Thus, the cylinders 20 and 28 can rotate about the respective axes of rotation 30 and 32 relative to the pressure stand 33. Finally, an electronic computing device 34 is provided, which is also referred to as a control unit. The electronic computing device 34 is designed to drive the cylinders 20 and 28 in register as a function of a virtual master axis 36.

Die Druckmaschine 10 weist beispielsweise wenigstens ein in der Fig. besonders schematisch dargestelltes Referenzdruckwerk 38 auf. Dabei ist die elektronische Recheneinrichtung 34 dazu ausgebildet, das Referenzdruckwerk 38 und den ersten Zylinder 20 in Abhängigkeit von einer der virtuellen Leitachse 36 übergeordneten, weiteren virtuellen Leitachse 40 anzutreiben und den zweiten Zylinder 28 dem ersten Zylinder 20, insbesondere in Abhängigkeit von der ersten virtuellen Leitachse 36, nachzuführen. Die weitere virtuelle Leitachse 40 ist beispielsweise eine virtuelle Hauptleitachse, welche der ersten virtuellen Leitachse 36 übergeordnet ist. Somit ist die erste virtuelle Leitachse 36 eine virtuelle Subleitachse, welche dazu genutzt wird, die Zylinder 20 und 28, insbesondere virtuell und somit beispielsweise regelungs-beziehungsweise steuerungstechnisch, miteinander zu koppeln und zu synchronisieren. Hierdurch kann das Substrat 12 besonders präzise bebildert werden. Durch die Verwendung der virtuellen Leitachsen 36 und 40 kann beispielsweise auf mechanische und somit körperlich vorhandene Kopplungen verzichtet werden, sodass die Kosten besonders gering gehalten werden können. Ferner können die Zylinder 20 und 28 besonders präzise und beispielsweise absolut winkelsynchron angetrieben werden.The printing machine 10 has, for example, at least one reference printing unit 38, which is shown particularly schematically in the figure. In this case, the electronic computing device 34 is configured to drive the reference printing unit 38 and the first cylinder 20 as a function of one of the virtual master axis 36, another virtual master axis 40 and the second cylinder 28 to the first cylinder 20, in particular in dependence on the first virtual master axis 36, track. The further virtual master axis 40 is, for example, a virtual main master axis which is superordinate to the first virtual master axis 36. Thus, the first virtual leading axis 36 is a virtual Subleitachse which is used to the cylinders 20 and 28, in particular virtually and thus, for example, control or control technology, to couple together and to synchronize. As a result, the substrate 12 can be imaged particularly precisely. By using the virtual master shafts 36 and 40 can be dispensed with, for example, mechanical and thus physically existing couplings, so that the cost can be kept very low. Furthermore, the cylinders 20 and 28 can be driven in a particularly precise and, for example, absolutely angular synchronous manner.

Aus der Fig. ist außerdem erkennbar, dass dem ersten Zylinder 20 ein erster Antriebsmotor 42 zugeordnet ist, mittels welchem der erste Zylinder 20 antreibbar ist beziehungsweise angetrieben wird. Ferner ist dem zweiten Zylinder 28 ein von dem ersten Antriebsmotor 42 unterschiedlicher, zusätzlich zu dem ersten Antriebsmotor 42 vorgesehener zweiter Antriebsmotor 44 zugeordnet, mittels welchem der zweite Zylinder 28 antreibbar ist beziehungsweise angetrieben wird. Wie in der Fig. durch Doppelpfeile 46 veranschaulicht ist, werden die Antriebsmotoren 42 und 44, welche beispielsweise als Elektromotoren ausgebildet sind, mittels der elektronischen Recheneinrichtung 34 in Abhängigkeit von der virtuellen Subleitachse (virtuelle Leitachse 36) angesteuert, wodurch die Zylinder 20 und 28 über die Antriebsmotoren 42 und 44 mittels der elektronischen Recheneinrichtung 34 zueinander synchronisiert und dadurch registerhaltig angetrieben werden. Die Antriebsmotoren 42 und 44 sind Einzelantriebe, welche nicht etwa mechanisch, sondern über die virtuelle Leitachse 36 virtuell, das heißt steuerungs- beziehungsweise regelungstechnisch beziehungsweise signaltechnisch miteinander gekoppelt und dadurch synchronisiert sind.It can also be seen from the FIG. That the first cylinder 20 is assigned a first drive motor 42, by means of which the first cylinder 20 can be driven or is driven. Further, the second cylinder 28 is assigned a different from the first drive motor 42, in addition to the first drive motor 42 provided second drive motor 44, by means of which the second cylinder 28 is driven or is driven. As illustrated in the figure by double arrows 46, the drive motors 42 and 44, which are formed for example as electric motors, by means of the electronic Computing device 34 in response to the virtual Subleitachse (virtual master axis 36) driven, whereby the cylinders 20 and 28 are synchronized to each other via the drive motors 42 and 44 by means of the electronic computing device 34 and thereby driven in register. The drive motors 42 and 44 are individual drives, which are not mechanically, but virtually via the virtual master axis 36, that is, in terms of control or regulation technology or signal technology coupled together and thereby synchronized.

Wenigstens einem der Zylinder 20 und 28 ist beispielsweise ein beispielsweise als Elektromotor ausgebildeter Seitenmotor zugeordnet, mittels welchem der wenigstens eine Zylinder in axialer Richtung des wenigstens einen Zylinders relativ zu dem anderen Zylinder und insbesondere relativ zu dem Druckständer 33 verstellt und somit verschoben werden kann. Hierdurch kann beispielsweise das sogenannte Seitenregister eingestellt werden. Ferner ist es durch den jeweiligen Antriebsmotor 42 beziehungsweise 44 möglich, den jeweiligen Zylinder 20 beziehungsweise 28, insbesondere relativ zu dem jeweils anderen Zylinder 28 beziehungsweise 20, zu verdrehen, sodass der jeweilige Zylinder 20 beziehungsweise 28 in seiner Umfangsrichtung verstellt werden kann. Dadurch kann eine Winkelposition der Zylinder 20 und 28 relativ zueinander eingestellt werden, sodass das sogenannte Längsregister eingestellt werden kann. Das Längsregister und das Seitenregister werden eingestellt, indem die Zylinder 20 und 28 relativ zueinander justiert werden. Mittels der virtuellen Leitachse 36 werden die Zylinder 20 und 28 über die Antriebsmotoren 42 und 44 derart angetrieben, dass die eingestellte Winkelposition fixiert bleibt, sodass die Zylinder 20 und 28 registerhaltig angetrieben werden. Die zuvor eingestellte Winkelposition beziehungsweise das zuvor eingestellte Längsregister wird nicht etwa durch eine mechanische Kopplung zwischen den Zylindern 20 und 28, sondern durch eine signaltechnische Kopplung fixiert, indem die Antriebsmotoren 42 und 44 von der elektronischen Recheneinrichtung 34 in Abhängigkeit von der virtuellen Leitachse 36 angetrieben werden, insbesondere derart, dass die zuvor eingestellte Winkelposition erhalten bleibt.At least one of the cylinders 20 and 28 is associated, for example, with a side motor designed, for example, as an electric motor, by means of which the at least one cylinder can be displaced in the axial direction of the at least one cylinder relative to the other cylinder and in particular relative to the pressure stand 33 and thus displaced. As a result, for example, the so-called page register can be set. Furthermore, it is possible by the respective drive motor 42 or 44, respectively, to rotate the respective cylinder 20 or 28, in particular relative to the respective other cylinder 28 or 20, so that the respective cylinder 20 or 28 can be adjusted in its circumferential direction. Thereby, an angular position of the cylinders 20 and 28 can be adjusted relative to each other, so that the so-called longitudinal register can be adjusted. The longitudinal register and the page register are adjusted by adjusting the cylinders 20 and 28 relative to each other. By means of the virtual master shaft 36, the cylinders 20 and 28 are driven via the drive motors 42 and 44 such that the set angular position remains fixed, so that the cylinders 20 and 28 are driven in register. The previously set angular position or the previously set longitudinal register is not fixed by a mechanical coupling between the cylinders 20 and 28, but by a signal-technical coupling by the drive motors 42 and 44 are driven by the electronic computing device 34 in response to the virtual master shaft 36 , in particular such that the previously set angular position is maintained.

Aus der Fig. ist erkennbar, dass das Substrat 12 zwischen den Zylindern 20 und 28 eine nur geringe Länge aufweist. Durch Wärmeveränderung, insbesondere durch Beheizen des Substrats 12, arbeitet das Substrat 12, sodass es beispielsweise zu Spannungs- und/oder Längenveränderungen des Substrats 12 kommt. Insbesondere die Winkelposition der Zylinder 20 und 28 wird an diese Spannungs- beziehungsweise Längenänderungen angepasst und auf die beschriebene Weise mittels der virtuellen Leitachse 36 beibehalten, sodass die Druckschicht besonders präzise auf das Substrat 12 appliziert und schließlich bebildert werden kann.From the figure it can be seen that the substrate 12 between the cylinders 20 and 28 has only a small length. By heat change, in particular by heating the substrate 12, the substrate 12 operates so that it, for example, too Voltage and / or changes in length of the substrate 12 comes. In particular, the angular position of the cylinders 20 and 28 is adapted to these voltage or length changes and maintained in the manner described by means of the virtual guide shaft 36, so that the print layer can be applied particularly precisely to the substrate 12 and finally imaged.

Dabei ist beispielsweise der Antriebsmotor 42 ein Master oder Masterantrieb, während der Antriebsmotor 44 ein Slaveantrieb oder Slave ist, der dem Master nachgeführt wird. In der Folge bleiben beispielsweise die Zylinder 20 und 28, insbesondere hinsichtlich ihrer Winkelposition, stets gleich ausgerichtet wie zuvor eingestellt beziehungsweise justiert. Wird dann, insbesondere infolge von Längen- und/oder Spannungsänderungen des Substrats 12, der erste Zylinder 20 gedreht beziehungsweise verdreht, so wird der zweite Zylinder 28 ebenfalls gedreht beziehungsweise verdreht und dabei dem ersten Zylinder 20 nachgeführt.In this case, for example, the drive motor 42 is a master or master drive, while the drive motor 44 is a slave drive or slave, which is tracked to the master. As a result, for example, the cylinders 20 and 28, in particular with regard to their angular position, always remain aligned the same as previously adjusted or adjusted. If then, in particular as a result of changes in length and / or voltage of the substrate 12, the first cylinder 20 is rotated or rotated, then the second cylinder 28 is also rotated or rotated, thereby tracking the first cylinder 20.

Die Hauptleitachse ist eine der Subleitachse übergeordnete zentrale Leitstelle, um insbesondere den ersten Zylinder 20 relativ zu dem Referenzdruckwerk 38 anzutreiben. Insgesamt ist erkennbar, dass bei der Druckmaschine 10 eine Kombination aus Tiefdruckzylinder und zusätzlichem Imagezylinder in dem Druckständer 33 vorgesehen ist, synchronisiert über die gemeinsame virtuelle Subleitachse zur Bebilderung von beispielsweise speziell pigmentierten Farben und Lacken, die im Tiefdruck beziehungsweise mittels des Tiefdruckverfahrens auf das Substrat 12 aufgetragen werden. Der Imagezylinder kann je nach angewendetem Verfahren kontaktlos oder mit Kontakt auf das auch als Substratbahn bezeichnete Substrat 12 wirken. Durch die virtuelle Subleitachse bleibt nach einmaliger Synchronisierung der Zylinder 20 und 28 das Längsregister stets zur Referenz passend, und das auf kostengünstige Weise.The main guide axis is a subordinate control unit central control center, in particular to drive the first cylinder 20 relative to the reference printing unit 38. Overall, it can be seen that in the printing press 10, a combination of gravure cylinder and additional image cylinder is provided in the pressure stand 33, synchronized on the common virtual Subleitachse for imaging of example specially pigmented paints and varnishes, the gravure or by means of gravure printing on the substrate 12th be applied. Depending on the method used, the image cylinder can act without contact or with contact with the substrate 12, which is also referred to as the substrate web. Due to the virtual Subleitachse remains after a single synchronization of the cylinder 20 and 28, the longitudinal register always suitable for reference, and in a cost effective manner.

Die Druckmaschine 10 umfasst ferner einen Registersensor 48, mittels welchem beispielsweise die bebilderte Druckschicht erfasst wird. Insbesondere kann dadurch eine Position des bebilderten Teilbereichs erfasst werden. Weicht die erfasste Position von einer gewünschten Soll-Position ab, so können die Zylinder 20 und 28 entsprechend verstellt werden.The printing machine 10 further comprises a register sensor 48, by means of which, for example, the imaged printing layer is detected. In particular, a position of the imaged subregion can thereby be detected. If the detected position differs from a desired desired position, the cylinders 20 and 28 can be adjusted accordingly.

Aus der Fig. ist erkennbar, dass - wie durch einen Doppelpfeil 50 veranschaulicht ist-der Zylinder 28 beispielsweise horizontal und in seiner radialen Richtung relativ zu der auch als Gegendruckrolle oder Gegendruckwalze bezeichneten Walze 17 und insbesondere relativ zu dem Druckständer 33 sowie beispielsweise relativ zu dem Zylinder 20 verstellt beziehungsweise verschoben werden kann. Hierdurch ist eine horizontale Druckverstellung zur Durchmesserkompensation, insbesondere bei Druckformatänderungen, realisierbar. Werden beispielsweise zweite Zylinder 28 mit unterschiedlichen Durchmessern eingesetzt, so kann der jeweilige zweite Zylinder 28 in horizontaler Richtung weggefahren und zugestellt werden, sodass beispielsweise ein Abstand zwischen der Drehachse 32 und dem Substrat 12 bedarfsgerecht eingestellt werden kann.From the figure it can be seen that - as illustrated by a double arrow 50 - the cylinder 28, for example horizontally and in its radial direction relative to the also called counter-pressure roller or platen roller 17 and in particular relative to the pressure stand 33 and for example relative to the Cylinder 20 can be adjusted or moved. As a result, a horizontal pressure adjustment for diameter compensation, in particular for printing format changes, can be realized. If, for example, second cylinders 28 with different diameters are used, then the respective second cylinder 28 can be moved away in the horizontal direction and delivered so that, for example, a distance between the axis of rotation 32 and the substrate 12 can be set as required.

Darüber hinaus ist ein Automatik-Register 52 vorgesehen, um beispielsweise eine Blockverstellung der Zylinder 20 und 28 zu realisieren. Im Rahmen dieser Blockverstellung werden die Zylinder 20 und 28 beispielsweise gemeinsam horizontal und/oder vertikal verstellt, indem beispielsweise die virtuelle Subleitachse (virtuelle Leitachse 36) im Längsregister verstellt wird, wodurch die Zylinder 20 und 28 winkelsynchron folgen. Ferner ist ein Handregister 54 vorgesehen, mittels welchem beispielsweise eine manuelle beziehungsweise autonome Verstellung der Zylinder 20 und 28 realisierbar ist. Somit ist es beispielsweise möglich, über eine Bedieneinrichtung 56 des Handregisters 54 den Zylinder 20 und über eine Bedieneinrichtung 58 des Handregisters 54 den Zylinder 28 zu verstellen. Insbesondere ist es dadurch möglich, die Zylinder 20 und 28 relativ zueinander zu verstellen, insbesondere in radialer Richtung beziehungsweise in horizontaler Richtung und/oder in vertikaler Richtung.In addition, an automatic register 52 is provided to realize, for example, a block adjustment of the cylinders 20 and 28. As part of this block adjustment, the cylinders 20 and 28, for example, together horizontally and / or vertically adjusted by, for example, the virtual Subleitachse (virtual master axis 36) is adjusted in the longitudinal register, whereby the cylinders 20 and 28 follow angle synchronously. Further, a manual register 54 is provided, by means of which, for example, a manual or autonomous adjustment of the cylinder 20 and 28 can be realized. Thus, it is for example possible to adjust the cylinder 20 via an operating device 56 of the manual register 54 and the cylinder 28 via an operating device 58 of the manual register 54. In particular, it is thereby possible to adjust the cylinders 20 and 28 relative to one another, in particular in the radial direction or in the horizontal direction and / or in the vertical direction.

In Bewegungsrichtung des Substrats 12 durch die Druckmaschine 10 schließt sich an den Zylinder 28 eine Trocknungseinrichtung 60 an, durch welche das mit der Druckschicht versehene und bebilderte Substrat 12 hindurchgefördert wird. An die Trocknungseinrichtung 60 schließt sich eine weitere Trocknungseinrichtung 62 an, durch welche beispielsweise das Substrat 12 hindurchgefördert wird. Mittels der Trocknungseinrichtungen 60 und 62 wird das Substrat 12 beziehungsweise die bebilderte Druckschicht getrocknet, um die Bebilderung zu fixieren.In the direction of movement of the substrate 12 through the printing press 10, a drying device 60 adjoins the cylinder 28, through which the substrate 12 provided with the printing layer and imaged is conveyed through. The drying device 60 is followed by a further drying device 62, through which, for example, the substrate 12 is conveyed through. By means of the drying devices 60 and 62, the substrate 12 or the imaged printing layer is dried in order to fix the imaging.

Insgesamt ist erkennbar, dass sich mittels der Druckmaschine 10 eine besonders präzise Bebilderung auf kostengünstige Weise realisieren lässt, da die Zylinder 20 und 28 mittels der virtuellen Leitachse 36 insbesondere zu 100 Prozent winkelsynchron angetrieben werden können, ohne dass hierzu eine mechanische beziehungsweise körperlich tatsächlich vorhandene Kopplung zwischen den Zylindern 20 und 28 vorgesehen ist.Overall, it can be seen that a particularly precise imaging can be realized in a cost-effective manner by means of the printing press 10, since the cylinders 20 and 28 can be driven in particular synchronously to 100 percent angle synchronously by means of the virtual lead axle 36 without a mechanical or physically actually present coupling is provided between the cylinders 20 and 28.

Claims (10)

Druckmaschine (10), mit wenigstens einem als Tiefdruckzylinder zum Durchführen eines Tiefdruckverfahrens ausgebildeten ersten Zylinder (20) zum Aufbringen zumindest einer Druckschicht (22) auf ein Substrat (12), mit wenigstens einem zum Durchführen eines von einem Tiefdruckverfahren unterschiedlichen Bebilderungsverfahrens ausgebildeten zweiten Zylinder (28) zum Bebildern zumindest eines Teilbereichs wenigstens einer auf das Substrat (12) aufgebrachten Druckschicht (22), mit einem den Zylindern (20, 28) gemeinsamen Druckständer (33), an welchem die Zylinder (20, 28) zumindest drehbar gelagert sind, und mit einer elektronischen Recheneinrichtung (34), welche dazu ausgebildet ist, die Zylinder (20, 28) in Abhängigkeit von einer virtuellen Leitachse (36) registerhaltig anzutreiben.Printing machine (10), comprising at least one first cylinder (20) designed as a gravure cylinder for performing a gravure printing method for applying at least one printing layer (22) to a substrate (12), having at least one second cylinder (FIG. 28) for imaging at least one partial region of at least one printed layer (22) applied to the substrate (12), with a pressure stand (33) common to the cylinders (20, 28), on which the cylinders (20, 28) are at least rotatably mounted, and with an electronic computing device (34) which is designed to drive in register the cylinders (20, 28) in dependence on a virtual master axis (36). Druckmaschine (10) nach Anspruch 1,
wobei dem ersten Zylinder (20) ein erster Antriebsmotor (42) zum Antreiben des ersten Zylinders (20) und dem zweiten Zylinder (28) ein von dem ersten Antriebsmotor (42) unterschiedlicher, zusätzlich zu dem ersten Antriebsmotor (42) vorgesehener zweiter Antriebsmotor (44) zum Antreiben des zweiten Zylinders (28) zugeordnet ist, wobei die elektronische Recheneinrichtung (34) dazu ausgebildet ist, die Antriebsmotoren (42, 44) in Abhängigkeit von der virtuellen Leitachse (36) anzusteuern und dadurch die Zylinder (20, 28) über die Antriebsmotoren (42, 44) in Abhängigkeit von der virtuellen Leitachse (36) registerhaltig anzutreiben.Printing machine (10) according to claim 1,
wherein the first cylinder (20) has a first drive motor (42) for driving the first cylinder (20) and the second cylinder (28) of a second drive motor (42) different from the first drive motor (42) and provided in addition to the first drive motor (42). 44) is assigned to drive the second cylinder (28), wherein the electronic computing device (34) is adapted to drive the drive motors (42, 44) in response to the virtual master axis (36) and thereby the cylinders (20, 28) above to drive the drive motors (42, 44) in register as a function of the virtual master axis (36). Druckmaschine (10) nach Anspruch 1 oder 2,
wobei der zweite Zylinder (28) dazu ausgebildet ist, zumindest einen Teilbereich der zumindest einen mittels des ersten Zylinders (20) auf das Substrat (12) aufgebrachten Druckschicht (22) zu bebildern.Printing machine (10) according to claim 1 or 2,
wherein the second cylinder (28) is adapted to image at least a portion of the at least one print layer (22) applied to the substrate (12) by means of the first cylinder (20). Druckmaschine (10) nach einem der vorhergehenden Ansprüche, wobei die Zylinder (20, 28) in radialer Richtung des jeweiligen Zylinders (20, 28) relativ zueinander verstellbar sind.Printing machine (10) according to one of the preceding claims, wherein the cylinders (20, 28) in the radial direction of the respective cylinder (20, 28) are adjustable relative to each other. Druckmaschine (10) nach einem der vorhergehenden Ansprüche, wobei die Zylinder (20, 28) in axialer Richtung des jeweiligen Zylinders (20, 28) relativ zueinander verstellbar sind.Printing machine (10) according to one of the preceding claims, wherein the cylinders (20, 28) in the axial direction of the respective cylinder (20, 28) are adjustable relative to each other. Druckmaschine (10) nach einem der vorhergehenden Ansprüche, wobei der zweite Zylinder (28) dazu ausgebildet ist, zumindest teilweise in die wenigstens eine Druckschicht (22) einzutauchen und dadurch zumindest den Teilbereich der wenigstens einen Druckschicht (22) durch Berührung zu bebildern.Printing machine (10) according to one of the preceding claims, wherein the second cylinder (28) is adapted to at least partially immerse in the at least one print layer (22) and thereby to form by contact at least the partial area of the at least one print layer (22). Druckmaschine (10) nach einem der vorhergehenden Ansprüche, wobei der zweite Zylinder (28) dazu ausgebildet ist, zumindest den Teilbereich der wenigstens einen Druckschicht (22) berührungslos zu bebildern.Printing machine (10) according to one of the preceding claims, wherein the second cylinder (28) is designed to contactlessly image at least the partial area of the at least one printing layer (22). Druckmaschine (10) nach Anspruch 7,
wobei der zweite Zylinder (28) dazu ausgebildet ist, magnetische Kräfte bereitzustellen und mittels der magnetischen Kräfte zumindest den Teilbereich des wenigstens einen Druckschicht (22) zu bebildern.Printing machine (10) according to claim 7,
wherein the second cylinder (28) is adapted to provide magnetic forces and to image by means of the magnetic forces at least the portion of the at least one print layer (22). Druckmaschine (10) nach einem der vorhergehenden Ansprüche, wobei sich der zweite Zylinder (28) unmittelbar an den ersten Zylinder (20) anschließt.Printing press (10) according to one of the preceding claims, wherein the second cylinder (28) directly adjoins the first cylinder (20). Druckmaschine (10) nach einem der vorhergehenden Ansprüche,
wobei die Druckmaschine (10) wenigstens ein Referenzdruckwerk (38) aufweist, und wobei die elektronische Recheneinrichtung (34) dazu ausgebildet ist, das Referenzdruckwerk (38) und den ersten Zylinder (20) in Abhängigkeit von einer der virtuellen Leitachse (36) übergeordneten, weiteren virtuellen Leitachse (40) anzutreiben und den zweiten Zylinder (28) dem ersten Zylinder (20) nachzuführen.Printing machine (10) according to one of the preceding claims,
wherein the printing machine (10) has at least one reference printing unit (38), and wherein the electronic calculating device (34) is designed to superimpose the reference printing unit (38) and the first cylinder (20) in dependence on one of the virtual guide axis (36), to drive further virtual master axis (40) and track the second cylinder (28) to the first cylinder (20).
EP17163948.7A 2017-03-30 2017-03-30 Printing machine Active EP3381685B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17163948.7A EP3381685B1 (en) 2017-03-30 2017-03-30 Printing machine
PL17163948T PL3381685T3 (en) 2017-03-30 2017-03-30 Printing machine
RU2018111023A RU2018111023A (en) 2017-03-30 2018-03-28 TYPEWRITER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17163948.7A EP3381685B1 (en) 2017-03-30 2017-03-30 Printing machine

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EP3381685A1 true EP3381685A1 (en) 2018-10-03
EP3381685B1 EP3381685B1 (en) 2020-12-16

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Citations (8)

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Publication number Priority date Publication date Assignee Title
US5116548A (en) * 1989-08-29 1992-05-26 American Bank Note Holographics, Inc. Replicaton of microstructures by casting in controlled areas of a substrate
WO2004028805A1 (en) * 2002-09-19 2004-04-08 Koenig & Bauer Aktiengesellschaft Drive devices and method for driving a processing machine
DE102006021069A1 (en) * 2005-05-11 2006-11-16 Shinohara Machinery Co., Ltd. Sheet-fed printing press, has varnishing unit coating ultraviolet-setting-type varnish on printed sheet, and rollers positioned at break state in relation to pressure cylinder for pressing hologram surface on sheet surface
US7542175B2 (en) 2002-03-27 2009-06-02 Sekuworks, Llc Combined flexographic and intaglio printing press and operating system therefor
DE102007021787B4 (en) 2007-05-07 2010-08-19 Wemhöner Surface Technologies GmbH & Co. KG Method for controlling a printing machine
DE102009045679B4 (en) 2009-10-14 2013-01-17 Koenig & Bauer Aktiengesellschaft Method for controlling a drive of at least one rotary body to be driven in register of a printing press
DE102013015277A1 (en) * 2013-09-16 2015-03-19 Schwarz Druck GmbH Orientation of magnetically orientable particles in one color with several superimposed magnetic fields
EP2902201A2 (en) * 2013-12-16 2015-08-05 manroland web systems GmbH Device and method of manufacturing a structured surface on a printing substrate

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5116548A (en) * 1989-08-29 1992-05-26 American Bank Note Holographics, Inc. Replicaton of microstructures by casting in controlled areas of a substrate
US7542175B2 (en) 2002-03-27 2009-06-02 Sekuworks, Llc Combined flexographic and intaglio printing press and operating system therefor
WO2004028805A1 (en) * 2002-09-19 2004-04-08 Koenig & Bauer Aktiengesellschaft Drive devices and method for driving a processing machine
DE102006021069A1 (en) * 2005-05-11 2006-11-16 Shinohara Machinery Co., Ltd. Sheet-fed printing press, has varnishing unit coating ultraviolet-setting-type varnish on printed sheet, and rollers positioned at break state in relation to pressure cylinder for pressing hologram surface on sheet surface
DE102007021787B4 (en) 2007-05-07 2010-08-19 Wemhöner Surface Technologies GmbH & Co. KG Method for controlling a printing machine
DE102009045679B4 (en) 2009-10-14 2013-01-17 Koenig & Bauer Aktiengesellschaft Method for controlling a drive of at least one rotary body to be driven in register of a printing press
DE102013015277A1 (en) * 2013-09-16 2015-03-19 Schwarz Druck GmbH Orientation of magnetically orientable particles in one color with several superimposed magnetic fields
EP2902201A2 (en) * 2013-12-16 2015-08-05 manroland web systems GmbH Device and method of manufacturing a structured surface on a printing substrate

Also Published As

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PL3381685T3 (en) 2021-07-26
EP3381685B1 (en) 2020-12-16
RU2018111023A (en) 2019-10-01

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