EP2147787A2 - Printing unit for a rotary printing press - Google Patents

Printing unit for a rotary printing press Download PDF

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Publication number
EP2147787A2
EP2147787A2 EP09165447A EP09165447A EP2147787A2 EP 2147787 A2 EP2147787 A2 EP 2147787A2 EP 09165447 A EP09165447 A EP 09165447A EP 09165447 A EP09165447 A EP 09165447A EP 2147787 A2 EP2147787 A2 EP 2147787A2
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EP
European Patent Office
Prior art keywords
printing
printing unit
units
cylinder
unit
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
EP09165447A
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German (de)
French (fr)
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EP2147787A3 (en
EP2147787B1 (en
Inventor
Peter Knauer
Josef Singler
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Manroland Web Systems GmbH
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Manroland AG
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Publication of EP2147787A3 publication Critical patent/EP2147787A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/004—Electric or hydraulic features of drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/008—Mechanical features of drives, e.g. gears, clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines
    • 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
    • B41P2213/10—Constitutive elements of driving devices

Definitions

  • the invention relates to a printing unit of a web-fed printing press according to the preamble of claim 1.
  • Printing units of web presses have several printing units, each printing unit comprising a transfer cylinder, a rolling on the transfer cylinder form cylinder, an inking unit and preferably a dampening unit. At least one printing plate is positioned on the forme cylinder of each printing unit. At least one transfer mold is positioned on the transfer cylinder of each printing unit.
  • Form cylinders are also referred to as a plate cylinder and transfer cylinder as a rubber cylinder.
  • the printing units of a printing unit of a web-fed printing press serve for double-sided printing of a web-shaped printing substrate, the printing substrate being transported for printing through a so-called printing nip.
  • a printing gap of two successive rolling transfer cylinders of two printing units is formed, which serve the same for printing the printing material on opposite sides.
  • the cylinder so the form cylinder and transfer cylinder, of two cooperating printing units, the transfer cylinders roll on each other and form the printing nip for printing on both sides of a web-shaped substrate to drive by main drive motors, wherein in known from practice printing units and the Inking units of the printing units are driven by the main drive motors.
  • the printing units and the inking units of the same may be problems printing problems, especially if the cylinder has a large axial width and a small circumference, so if the cylinder is relatively slim are executed.
  • the present invention has the object to provide a novel printing unit of a web-fed printing press, with which a higher print quality can be provided.
  • This object is achieved by a printing unit of a web-fed printing press according to claim 1.
  • a main drive motor is assigned, which drives the form cylinder and the transfer cylinder of the first printing unit and the second printing unit in the continuous printing, wherein the printing unit, which is not assigned to the main drive motor, a brake motor is assigned to the continuous printing defined tooth flank position for the form cylinder and the transfer cylinder of the first printing unit and the second printing unit provides.
  • a braking torque is introduced into the cylinders of the two printing couples via the brake motor in order to ensure a defined tooth flank position for the forme cylinders and transfer cylinders. This makes it possible to avoid printing interference and to provide a high print quality.
  • the inking units of the first printing unit and the second printing unit are each assigned a direct drive motor, which drives the respective inking unit in its own motor mode during the production run.
  • the mechanical coupling between the cylinders of the printing units and the inking units of the same is then canceled.
  • the invention relates to a printing unit of a web-fed printing press, wherein such a printing unit comprises a plurality of printing units for printing on both sides of a web-shaped printing substrate.
  • a printing unit 10 of an illustration printing machine with two printing units 11, 12 for printing on both sides of a web-shaped substrate 13, wherein the web-shaped substrate 13 is transported in a horizontal direction by the printing unit 10.
  • Each of the two cooperating printing units 11 and 12 has a transfer cylinder 14, a forme cylinder 15, an inking unit 16 and a dampening unit 17.
  • the inking unit 16 is ink
  • using the dampening unit 17 dampening is positioned on the or each on the respective forme cylinder 15 Applied printing form.
  • the ink is applied starting from the forme cylinders 15 via the transfer cylinder 14 on the substrate 13.
  • the two transfer cylinders 14 of the printing units 11, 12 from each other to form a printing gap for the printing material 13 from each other.
  • the transfer cylinder 14 of the printing unit 12 thus forms an impression cylinder for the transfer cylinder 14 of the printing unit 11.
  • the transfer cylinder 14 of the printing unit 11 forms an impression cylinder for the transfer cylinder 14 of the printing unit 12th
  • the transfer cylinder 14 roll to form the printing gap for the substrate 13, the two-sided printing of the substrate 13, wherein the first printing unit 11 in the illustrated embodiment, the substrate 13 on an upper side and the second Printing unit 12 the same printed on a bottom.
  • one of the two printing units 11, 12 is associated with a main drive motor 18 which drives the forme cylinder 15 and the transfer cylinder 14 of both printing units 11, 12 in the continuous printing.
  • the main drive motor 18 is associated with the forme cylinder 15 of the second printing unit 12, the main drive motor 18 drives directly into the forme cylinder 15 of the printing unit 12 and drives the two transfer cylinder 14 and the forme cylinder 15 of the first printing unit 11 indirectly via a spur gear or gear connection ,
  • the main drive motor 18 can also drive indirectly with the interposition of an intermediate gear in the forme cylinder 15 of the printing unit 12.
  • Both inking units 16 of the printing units 11, 12 is in the preferred embodiment each associated with a direct drive motor 19 which drives the respective inking unit 16 self-engine in the continuous printing, without mechanical coupling to the cylinders 14, 15 of the printing units 11, 12.
  • the inking units 16 of the first Accordingly, in each case a direct drive motor 19 is associated with the second printing unit 11, 12, so that there is no mechanical drive connection between the inking units 16 and the cylinders 14, 15 of the printing units 11, 12 in the continuous printing.
  • the inking units can also be driven by the main drive motor.
  • the printing unit, the main drive motor 18 is not assigned, so in the embodiment shown the first printing unit 11, a brake motor 20 is associated with the continuous pressure a defined tooth flank position for the forme cylinder 15 and the transfer cylinder 14 of the two printing units 11, 12 provides.
  • the brake motor 20 therefore has no driving function, but rather only a braking function. It is according to Fig. 1 the brake motor 20 associated with the forme cylinder 15 of the first printing unit 11, wherein the first printing unit 11 of the main drive motor 18 is not assigned.
  • the brake motor 20 brings in the plate cylinder 15 of the first printing unit 11 directly a braking torque and via the spur gear or gear connections in the other cylinder 14, 15 indirectly a braking torque.
  • the brake motor 20 can also drive indirectly with the interposition of an intermediate gear in the forme cylinder 15 of the first printing unit 11.
  • printing unit 10 of the two printing units 11, 12 therefore has a total of at least four motors.
  • a main drive motor 18 is assigned to one of the two printing units, wherein a drive torque is driven or introduced via the main drive motor 18 into the forme cylinder 15 and transfer cylinder 14 of both printing units 11, 12.
  • the main drive motor 18 is associated with the forme cylinder 15 of a printing unit, so that the main drive motor 18 in this form cylinder 15 drives indirectly and directly via gear connections in the other cylinders of both printing units 11, 12.
  • Each inking unit 16 of both printing units 11, 12 is in each case assigned a direct drive to drive the inking units 16 in the continuous printing without mechanical coupling to the cylinders 14, 15 in an own engine.
  • a brake actuator 20 is assigned, which is associated with the forme cylinder of the corresponding printing unit and in the form of cylinder 15 and transfer cylinder 14 of both printing units 11, 12 introduces a braking torque.
  • dampening units 17 of both printing units 11, 12 are preferably not shown direct drive motors assigned to drive the respective dampening unit 17 self-propelled in the continuous pressure.
  • Printing units 11, 12 with directly driven dampening units 17 are used in particular in commercial printing presses with horizontal web run of the printing substrate 13. It is also possible that the dampening units are driven by spur gear from the main drive motor. This is the case in particular for newspaper printing machines with vertical web travel of the printing material.
  • the forme cylinders 15 of the printing units are preferably formed slim with a large axial width and a small circumference.
  • the forme cylinder 15 can be designed as a 4/1 forme cylinder or 6/2-forme cylinder or 6/1 forme cylinder, the first number being the number of print pages which can be printed side by side in the axial direction and the second number being the number of print pages which can be printed successively in the circumferential direction indicates each revolution of the forme cylinder.
  • the transfer cylinders 14 have the same circumference and of course the same axial width as the forme cylinder 15.
  • the circumference of the transfer cylinder 14 may also be an integer multiple of the circumference of the forme cylinder 15.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The unit (10) has two printing mechanisms (11, 12) with form cylinders (15), transfer cylinders (14), inking units (16) and dampening units (17). The transfer cylinders roll on one another under formation of a printing gap for a web-shaped substrate (13). One of the mechanisms is assigned to a main driving motor (18), which drives the form and transfer cylinders in a production run. Other mechanism that is not assigned to the main diving motor is assigned to a braking motor (20) that provides a defined tooth edge position for the form and transfer cylinders in the production run.

Description

Die Erfindung betrifft eine Druckeinheit einer Rollendruckmaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a printing unit of a web-fed printing press according to the preamble of claim 1.

Druckeinheiten von Rollendruckmaschinen verfügen über mehrere Druckwerke, wobei jedes Druckwerk einen Übertragungszylinder, einen auf dem Übertragungszylinder abrollenden Formzylinder, ein Farbwerk sowie vorzugsweise ein Feuchtwerk umfasst. Auf dem Formzylinder eines jeden Druckwerks ist mindestens eine Druckform positioniert. Auf dem Übertragungszylinder jedes Druckwerks ist mindestens eine Übertragungsform positioniert. Formzylinder werden auch als Plattenzylinder und Übertragungszylinder auch als Gummizylinder bezeichnet.Printing units of web presses have several printing units, each printing unit comprising a transfer cylinder, a rolling on the transfer cylinder form cylinder, an inking unit and preferably a dampening unit. At least one printing plate is positioned on the forme cylinder of each printing unit. At least one transfer mold is positioned on the transfer cylinder of each printing unit. Form cylinders are also referred to as a plate cylinder and transfer cylinder as a rubber cylinder.

Die Druckwerke einer Druckeinheit einer Rollendruckmaschine dienen dem beidseitigen Bedrucken eines bahnförmigen Bedruckstoffs, wobei der Bedruckstoff zum Bedrucken durch einen sogenannten Druckspalt transportiert wird. Typischerweise wird dabei ein Druckspalt von zwei aufeinander abrollenden Übertragungszylindern zweier Druckwerke gebildet, die dem Bedrucken des Bedruckstoffs auf sich gegenüberliegenden Seiten desselben dienen.The printing units of a printing unit of a web-fed printing press serve for double-sided printing of a web-shaped printing substrate, the printing substrate being transported for printing through a so-called printing nip. Typically, a printing gap of two successive rolling transfer cylinders of two printing units is formed, which serve the same for printing the printing material on opposite sides.

Aus der Praxis ist es bereits bekannt, die Zylinder, also die Formzylinder und Übertragungszylinder, von zwei zusammenwirkenden Druckwerken, deren Übertragungszylinder aufeinander abrollen und den Druckspalt zum beidseitigen Bedrucken eines bahnförmigen Bedruckstoffs bilden, durch Hauptantriebsmotoren anzutreiben, wobei bei aus der Praxis bekannten Druckeinheiten auch die Farbwerke der Druckwerke von den Hauptantriebsmotoren angetrieben werden.From practice, it is already known, the cylinder, so the form cylinder and transfer cylinder, of two cooperating printing units, the transfer cylinders roll on each other and form the printing nip for printing on both sides of a web-shaped substrate to drive by main drive motors, wherein in known from practice printing units and the Inking units of the printing units are driven by the main drive motors.

Bedingt durch die mechanische Kopplung zwischen den Zylindern, also den Formzylindern und den Übertragungszylindern, der Druckwerke und den Farbwerken derselben können sich drucktechnische Probleme einstellen, insbesondere dann, wenn die Zylinder eine große axiale Breite und einen geringen Umfang aufweisen, wenn also die Zylinder relativ schlank ausgeführt sind.Due to the mechanical coupling between the cylinders, so the cylinders and the transfer cylinders, the printing units and the inking units of the same may be problems printing problems, especially if the cylinder has a large axial width and a small circumference, so if the cylinder is relatively slim are executed.

Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine neuartige Druckeinheit einer Rollendruckmaschine zu schaffen, mit welchem eine höhere Druckqualität bereitgestellt werden kann. Diese Aufgabe wird durch eine Druckeinheit einer Rollendruckmaschine gemäß Anspruch 1 gelöst. Erfindungsgemäß ist dem ersten Druckwerk oder dem zweiten Druckwerk ein Hauptantriebsmotor zugeordnet, der im Fortdruck die Formzylinder und die Übertragungszylinder des ersten Druckwerks und des zweiten Druckwerks antreibt, wobei dem Druckwerk, dem nicht der Hauptantriebsmotor zugeordnet ist, ein Bremsmotor zugeordnet ist, der im Fortdruck eine definierte Zahnflankenlage für die Formzylinder und die Übertragungszylinder des ersten Druckwerks und des zweiten Druckwerks bereitstellt.On this basis, the present invention has the object to provide a novel printing unit of a web-fed printing press, with which a higher print quality can be provided. This object is achieved by a printing unit of a web-fed printing press according to claim 1. According to the first printing unit or the second printing unit, a main drive motor is assigned, which drives the form cylinder and the transfer cylinder of the first printing unit and the second printing unit in the continuous printing, wherein the printing unit, which is not assigned to the main drive motor, a brake motor is assigned to the continuous printing defined tooth flank position for the form cylinder and the transfer cylinder of the first printing unit and the second printing unit provides.

Bei der erfindungsgemäßen Druckeinheit einer Rollendruckmaschine wird über den Bremsmotor ein Bremsmoment in die Zylinder der beiden Druckwerke eingebracht wird, um eine definierte Zahnflankenlage für die Formzylinder und Übertragungszylinder zu gewährleisten. Hierdurch ist es möglich, drucktechnische Störungen zu vermeiden und eine hohe Druckqualität bereitzustellen.In the case of the printing unit of a web-fed printing press according to the invention, a braking torque is introduced into the cylinders of the two printing couples via the brake motor in order to ensure a defined tooth flank position for the forme cylinders and transfer cylinders. This makes it possible to avoid printing interference and to provide a high print quality.

Vorzugsweise ist den Farbwerken des ersten Druckwerks und des zweiten Druckwerks jeweils ein Direktantriebsmotor zugeordnet, der im Fortdruck das jeweilige Farbwerk eigenmotorisch antreibt. Hierdurch wird dann die mechanische Kopplung zwischen den Zylindern der Druckwerke und den Farbwerken derselben aufgehoben.Preferably, the inking units of the first printing unit and the second printing unit are each assigned a direct drive motor, which drives the respective inking unit in its own motor mode during the production run. As a result, the mechanical coupling between the cylinders of the printing units and the inking units of the same is then canceled.

Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ein Ausführungsbeispiel der Erfindung wird, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt:

Fig. 1:
eine schematisierte Darstellung einer erfindungsgemäßen Druckein- heit einer Rollendruckmaschine.
Preferred embodiments of the invention will become apparent from the dependent claims and the description below. An embodiment of the invention will be described, without being limited thereto, with reference to the drawing. Showing:
Fig. 1:
a schematic representation of a printing unit according to the invention of a web-fed printing press.

Die Erfindung betrifft eine Druckeinheit einer Rollendruckmaschine, wobei eine solche Druckeinheit mehrere Druckwerke zum beidseitigen Bedrucken eines bahnförmigen Bedruckstoffs umfasst. Die Erfindung wird nachfolgend unter Bezugnahme auf das Ausführungsbeispiel der Fig. 1 im Detail beschrieben. So zeigt Fig. 1 schematisiert eine Druckeinheit 10 einer Illustrationsdruckmaschine mit zwei Druckwerken 11, 12 zum beidseitigen Bedrucken eines bahnförmigen Bedruckstoffs 13, wobei der bahnförmige Bedruckstoff 13 in horizontaler Richtung durch das Druckwerk 10 transportiert wird.The invention relates to a printing unit of a web-fed printing press, wherein such a printing unit comprises a plurality of printing units for printing on both sides of a web-shaped printing substrate. The invention will be described below with reference to the embodiment of Fig. 1 described in detail. So shows Fig. 1 schematically a printing unit 10 of an illustration printing machine with two printing units 11, 12 for printing on both sides of a web-shaped substrate 13, wherein the web-shaped substrate 13 is transported in a horizontal direction by the printing unit 10.

Jedes der beiden zusammenwirkenden Druckwerke 11 und12 verfügt über einen Übertragungszylinder 14, einen Formzylinder 15, ein Farbwerk 16 sowie ein Feuchtwerk 17. Mit Hilfe des Farbwerks 16 wird Druckfarbe, mit Hilfe des Feuchtwerks 17 wird Feuchtmittel auf die oder jede auf dem jeweiligen Formzylinder 15 positionierte Druckform aufgetragen. Über auf den Übertragungszylindern 14 positionierte Übertragungsformen wird die Druckfarbe ausgehend von den Formzylindern 15 über die Übertragungszylinder 14 auf den Bedruckstoff 13 aufgetragen. Dabei rollen die beiden Übertragungszylinder 14 der Druckwerke 11, 12 unter Ausbildung eines Druckspalts für den Bedruckstoff 13 aufeinander ab. Der Übertragungszylinder 14 des Druckwerks 12 bildet demnach einen Gegendruckzylinder für den Übertragungszylinder 14 des Druckwerks 11. Der Übertragungszylinder 14 des Druckwerks 11 bildet einen Gegendruckzylinder für den Übertragungszylinder 14 des Druckwerks 12.Each of the two cooperating printing units 11 and 12 has a transfer cylinder 14, a forme cylinder 15, an inking unit 16 and a dampening unit 17. With the help of the inking unit 16 is ink, using the dampening unit 17 dampening is positioned on the or each on the respective forme cylinder 15 Applied printing form. About positioned on the transfer cylinders 14 transmission forms, the ink is applied starting from the forme cylinders 15 via the transfer cylinder 14 on the substrate 13. In this case, the two transfer cylinders 14 of the printing units 11, 12 from each other to form a printing gap for the printing material 13 from each other. The transfer cylinder 14 of the printing unit 12 thus forms an impression cylinder for the transfer cylinder 14 of the printing unit 11. The transfer cylinder 14 of the printing unit 11 forms an impression cylinder for the transfer cylinder 14 of the printing unit 12th

Wie bereits ausgeführt, dienen die beiden Druckwerke 11, 12, deren Übertragungszylinder 14 unter Ausbildung des Druckspalts für den Bedruckstoff 13 aufeinander abrollen, dem beidseitigen Bedrucken des Bedruckstoffs 13, wobei das erste Druckwerk 11 im gezeigten Ausführungsbeispiel den Bedruckstoff 13 auf einer Oberseite und das zweite Druckwerk 12 denselben auf einer Unterseite bedruckt.As already stated, serve the two printing units 11, 12, the transfer cylinder 14 roll to form the printing gap for the substrate 13, the two-sided printing of the substrate 13, wherein the first printing unit 11 in the illustrated embodiment, the substrate 13 on an upper side and the second Printing unit 12 the same printed on a bottom.

Im Sinne der Erfindung ist einem der beiden Druckwerke 11, 12 ein Hauptantriebsmotor 18 zugeordnet, der im Fortdruck die Formzylinder 15 und die Übertragungszylinder 14 beider Druckwerke 11, 12 antreibt. Im gezeigten Ausführungsbeispiel ist der Hauptantriebsmotor 18 dem Formzylinder 15 des zweiten Druckwerks 12 zugeordnet, wobei der Hauptantriebsmotor 18 in den Formzylinder 15 des Druckwerks 12 unmittelbar eintreibt und die beiden Übertragungszylinder 14 sowie den Formzylinder 15 des ersten Druckwerks 11 mittelbar über eine Stirnradverbindung bzw. Zahnradverbindung antreibt. Der Hauptantriebsmotor 18 kann auch unter Zwischenschaltung eines Zwischenrads mittelbar in den Formzylinder 15 des Druckwerks 12 eintreiben.For the purposes of the invention, one of the two printing units 11, 12 is associated with a main drive motor 18 which drives the forme cylinder 15 and the transfer cylinder 14 of both printing units 11, 12 in the continuous printing. In the illustrated embodiment, the main drive motor 18 is associated with the forme cylinder 15 of the second printing unit 12, the main drive motor 18 drives directly into the forme cylinder 15 of the printing unit 12 and drives the two transfer cylinder 14 and the forme cylinder 15 of the first printing unit 11 indirectly via a spur gear or gear connection , The main drive motor 18 can also drive indirectly with the interposition of an intermediate gear in the forme cylinder 15 of the printing unit 12.

Beiden Farbwerken 16 der Druckwerke 11, 12 ist im bevorzugten Ausführungsbeispiel jeweils ein Direktantriebsmotor 19 zugeordnet, der im Fortdruck das jeweilige Farbwerk 16 eigenmotorisch antreibt, und zwar ohne mechanische Kopplung zu den Zylindern 14, 15 der Druckwerke 11, 12. Den Farbwerken 16 des ersten und zweiten Druckwerks 11, 12 ist demnach jeweils ein Direktantriebsmotor 19 zugeordnet, sodass im Fortdruck keine mechanische Antriebsverbindung zwischen den Farbwerken 16 und den Zylindern 14, 15 der Druckwerke 11, 12 besteht. Die Farbwerke können jedoch auch vom Hauptantriebsmotor aus angetrieben werden.Both inking units 16 of the printing units 11, 12 is in the preferred embodiment each associated with a direct drive motor 19 which drives the respective inking unit 16 self-engine in the continuous printing, without mechanical coupling to the cylinders 14, 15 of the printing units 11, 12. The inking units 16 of the first Accordingly, in each case a direct drive motor 19 is associated with the second printing unit 11, 12, so that there is no mechanical drive connection between the inking units 16 and the cylinders 14, 15 of the printing units 11, 12 in the continuous printing. However, the inking units can also be driven by the main drive motor.

Dem Druckwerk, dem der Hauptantriebsmotor 18 nicht zugeordnet ist, also im gezeigten Ausführungsbeispiel dem ersten Druckwerk 11, ist ein Bremsmotor 20 zugeordnet, der im Fortdruck eine definierten Zahnflankenlage für die Formzylinder 15 und die Übertragungszylinder 14 der beiden Druckwerke 11, 12 bereitstellt.The printing unit, the main drive motor 18 is not assigned, so in the embodiment shown the first printing unit 11, a brake motor 20 is associated with the continuous pressure a defined tooth flank position for the forme cylinder 15 and the transfer cylinder 14 of the two printing units 11, 12 provides.

Der Bremsmotor 20 hat demnach keine antreibende Funktion, sondern vielmehr nur eine bremsende Funktion. Dabei ist gemäß Fig. 1 der Bremsmotor 20 dem Formzylinder 15 des ersten Druckwerks 11 zugeordnet, wobei dem ersten Druckwerk 11 der Hauptantriebsmotor 18 nicht zugeordnet ist. Der Bremsmotor 20 bringt in den Formzylinder 15 des ersten Druckwerks 11 unmittelbar ein Bremsmoment und über die Stirnradverbindungen bzw. Zahnradverbindungen in die anderen Zylinder 14, 15 mittelbar ein Bremsmoment ein. Der Bremsmotor 20 kann auch unter Zwischenschaltung eines Zwischenrads mittelbar in den Formzylinder 15 des ersten Druckwerks 11 eintreiben.The brake motor 20 therefore has no driving function, but rather only a braking function. It is according to Fig. 1 the brake motor 20 associated with the forme cylinder 15 of the first printing unit 11, wherein the first printing unit 11 of the main drive motor 18 is not assigned. The brake motor 20 brings in the plate cylinder 15 of the first printing unit 11 directly a braking torque and via the spur gear or gear connections in the other cylinder 14, 15 indirectly a braking torque. The brake motor 20 can also drive indirectly with the interposition of an intermediate gear in the forme cylinder 15 of the first printing unit 11.

Hierdurch ist es möglich, die Formzylinder 15 sowie die Übertragungszylinder 14 beider Druckwerke 11, 12 im Verbund miteinander zu verspannen und so im Fortdruck eine definierte Zahnflankenlage für die Formzylinder 15 und Übertragungszylinder 14 beider Druckwerke 11, 12 bereitzustellen.This makes it possible to clamp the forme cylinder 15 and the transfer cylinder 14 of both printing units 11, 12 in a composite with each other and so in the continuous printing a defined tooth flank position for the forme cylinder 15 and transfer cylinder 14 of both printing units 11, 12 provide.

Die in Fig. 1 gezeigte Druckeinheit 10 aus den beiden Druckwerken 11, 12 verfügt demnach über insgesamt mindestens vier Motoren. Ein Hauptantriebsmotor 18 ist einem der beiden Druckwerke zugeordnet, wobei über den Hauptantriebsmotor 18 in die Formzylinder 15 und Übertragungszylinder 14 beider Druckwerke 11, 12 ein Antriebsmoment eingetrieben bzw. eingebracht wird. Dabei ist der Hauptantriebsmotor 18 dem Formzylinder 15 eines Druckwerks zugeordnet, sodass der Hauptantriebsmotor 18 in diesen Formzylinder 15 unmittelbar und über Zahnradverbindungen in die anderen Zylinder beider Druckwerke 11, 12 mittelbar eintreibt. Jedem Farbwerk 16 beider Druckwerke 11, 12 ist jeweils ein Direktantrieb zugeordnet, um die Farbwerke 16 im Fortdruck ohne mechanische Kopplung zu den Zylindern 14, 15 eigenmotorisch anzutreiben. Somit wird vermieden, dass Drehmomentstöße in den Farbwerken 16 auf die Zylinder 14, 15 der Druckwerke 11 übertragen werden. Dem Druckwerk, dem der Hauptantriebsmotor 18 nicht zugeordnet ist, ist ein Bremsantrieb 20 zugeordnet, der dem Formzylinder des entsprechenden Druckwerks zugeordnet ist und in die Formzylinder 15 und Übertragungszylinder 14 beider Druckwerke 11, 12 ein Bremsmoment einbringt.In the Fig. 1 shown printing unit 10 of the two printing units 11, 12 therefore has a total of at least four motors. A main drive motor 18 is assigned to one of the two printing units, wherein a drive torque is driven or introduced via the main drive motor 18 into the forme cylinder 15 and transfer cylinder 14 of both printing units 11, 12. In this case, the main drive motor 18 is associated with the forme cylinder 15 of a printing unit, so that the main drive motor 18 in this form cylinder 15 drives indirectly and directly via gear connections in the other cylinders of both printing units 11, 12. Each inking unit 16 of both printing units 11, 12 is in each case assigned a direct drive to drive the inking units 16 in the continuous printing without mechanical coupling to the cylinders 14, 15 in an own engine. Thus it is avoided that torque surges in the inking units 16 are transmitted to the cylinders 14, 15 of the printing units 11. The printing unit, which is not assigned to the main drive motor 18, a brake actuator 20 is assigned, which is associated with the forme cylinder of the corresponding printing unit and in the form of cylinder 15 and transfer cylinder 14 of both printing units 11, 12 introduces a braking torque.

Hierdurch werden die Formzylinder 15 und Übertragungszylinder 14 beider Druckwerke 11, 12 miteinander verspannt, um so eine definierte Zahnflankenlage im Antriebsstrang der Übertragungszylinder 14 und Formzylinder 15 bereitzustellen bzw. aufrechtzuerhalten. Wie bereits ausgeführt, ist es im Unterscheid zum bevorzugten Ausführungsbeispiel der Fig. 1 auch möglich, dass die Farbwerke keine Direktantriebe aufweisen sondern vom Hauptantriebsmotor aus angetrieben werden.As a result, the forme cylinder 15 and transfer cylinder 14 of both printing units 11, 12 are clamped together so as to provide or maintain a defined tooth flank position in the drive train of the transfer cylinder 14 and forme cylinder 15. As already stated, it is in contrast to the preferred embodiment of Fig. 1 also possible that the inking units have no direct drives but are driven by the main drive motor.

Den Feuchtwerken 17 beider Druckwerke 11, 12 sind vorzugsweise nicht gezeigte Direktantriebsmotoren zugeordnet, die im Fortdruck das jeweilige Feuchtwerk 17 eigenmotorisch antreiben. Druckwerke 11, 12 mit direkt angetriebenen Feuchtwerken 17 kommen insbesondere bei Illustrationsdruckmaschinen mit horizontalem Bahnlauf des Bedruckstoffs 13 zu Anwendung. Ebenso ist es möglich, dass die Feuchtwerke über Stirnradverbindungen vom Hauptantriebsmotor aus angetrieben werden. Dies ist insbesondere bei Zeitungsdruckmaschinen mit vertikalem Bahnlauf des Bedruckstoffs der Fall.The dampening units 17 of both printing units 11, 12 are preferably not shown direct drive motors assigned to drive the respective dampening unit 17 self-propelled in the continuous pressure. Printing units 11, 12 with directly driven dampening units 17 are used in particular in commercial printing presses with horizontal web run of the printing substrate 13. It is also possible that the dampening units are driven by spur gear from the main drive motor. This is the case in particular for newspaper printing machines with vertical web travel of the printing material.

Die Formzylinder 15 der Druckwerke sind vorzugsweise schlank mit einer großen axialen Breite und einem geringen Umfang ausgebildet. So können die Formzylinder 15 als 4/1-Formzylinder oder 6/2-Formzylinder oder 6/1-Formzylinder ausgebildet sein, wobei die erste Zahl die Anzahl der in Axialrichtung nebeneinander druckbaren Druckseiten und die zweite Zahl die Anzahl der in Umfangsrichtung hintereinander druckbaren Druckseiten je Umdrehung des Formzylinders angibt.The forme cylinders 15 of the printing units are preferably formed slim with a large axial width and a small circumference. Thus, the forme cylinder 15 can be designed as a 4/1 forme cylinder or 6/2-forme cylinder or 6/1 forme cylinder, the first number being the number of print pages which can be printed side by side in the axial direction and the second number being the number of print pages which can be printed successively in the circumferential direction indicates each revolution of the forme cylinder.

Gemäß Fig. 1 weisen die Übertragungszylinder 14 denselben Umfang und selbstverständlich dieselbe axiale Breite wie die Formzylinder 15 auf. Der Umfang der Übertragungszylinder 14 kann auch ein ganzzahliges Vielfaches des Umfangs der Formzylinder 15 sein.According to Fig. 1 The transfer cylinders 14 have the same circumference and of course the same axial width as the forme cylinder 15. The circumference of the transfer cylinder 14 may also be an integer multiple of the circumference of the forme cylinder 15.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Druckeinheitprinting unit
1111
Druckwerkprinting unit
1212
Druckwerkprinting unit
1313
Bedruckstoffsubstrate
1414
Übertragungszylindertransfer cylinder
1515
Formzylinderform cylinder
1616
Farbwerkinking
1717
Feuchtwerkdampening
1818
HauptantriebsmotorMain drive motor
1919
DirektantriebsmotorDirect drive motor
2020
Bremsmotorbrakemotor

Claims (9)

Druckeinheit einer Rollendruckmaschine, mit mindestens zwei Druckwerken, wobei ein erstes Druckwerk einen bahnförmigen Bedruckstoff auf einer ersten Seite und ein zweites Druckwerk den bahnförmigen Bedruckstoff auf einer der ersten Seite gegenüberliegenden zweiten Seite bedruckt, wobei das erste und das zweite Druckwerk jeweils einen Formzylinder, einen Übertragungszylinder, ein Farbwerk und vorzugsweise ein Feuchtwerk aufweisen, und wobei die Übertragungszylinder des ersten und das zweiten Druckwerks unter Ausbildung eines Druckspalts für den zu bedruckenden Bedruckstoff aufeinander abrollen, dadurch gekennzeichnet, dass dem ersten Druckwerk (11) oder dem zweiten Druckwerk (12) ein Hauptantriebsmotor (18) zugeordnet ist, der im Fortdruck die Formzylinder (15) und die Übertragungszylinder (14) des ersten und zweiten Druckwerks (11, 12) antreibt, und dass dem Druckwerk, dem nicht der Hauptantriebsmotor (18) zugeordnet ist, ein Bremsmotor (20) zugeordnet ist, der im Fortdruck eine definierte Zahnflankenlage für die Formzylinder (15) und die Übertragungszylinder (14) des ersten und zweiten Druckwerks (11, 12) bereitstellt.Printing unit of a web-fed printing press, with at least two printing units, wherein a first printing unit printed a web-shaped substrate on a first page and a second printing unit the web-shaped substrate on a first side opposite the second side, wherein the first and the second printing unit each have a form cylinder, a transfer cylinder , An inking unit and preferably a dampening unit, and wherein the transfer cylinder of the first and the second printing unit to form a printing gap for the printing substrate to roll on each other, characterized in that the first printing unit (11) or the second printing unit (12) has a main drive motor (18) is associated, which drives the forme cylinder (15) and the transfer cylinders (14) of the first and second printing units (11, 12), and that the printing unit, which is not associated with the main drive motor (18), a brake motor ( 20) is assigned, which in the continuous printing a defined tooth flank position for the forme cylinder (15) and the transfer cylinder (14) of the first and second printing unit (11, 12) provides. Druckeinheit nach Anspruch 1, dadurch gekennzeichnet, dass den Farbwerken (16) des ersten und zweiten Druckwerks (11, 12) jeweils ein Direktantriebsmotor (19) zugeordnet ist, der im Fortdruck das jeweilige Farbwerk (16) eigenmotorisch antreibt.Printing unit according to Claim 1, characterized in that the inking units (16) of the first and second printing units (11, 12) are each assigned a direct drive motor (19) which drives the respective inking unit (16) in self-drive mode during the printing operation. Druckeinheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der dem ersten Druckwerk (11) oder dem zweiten Druckwerk (12) zugeordnete Hauptantriebsmotor (18) unmittelbar oder mittelbar in den Formzylinder (15) des jeweiligen Druckwerks (11, 12) und über Stirnradverbindungen mittelbar in die anderen Zylinder (14, 15) beider Druckwerke (11, 12) eintreibt.Printing unit according to claim 1 or 2, characterized in that the first printing unit (11) or the second printing unit (12) associated with the main drive motor (18) directly or indirectly in the forme cylinder (15) of the respective printing unit (11, 12) and via spur gear indirectly in the other cylinder (14, 15) of both printing units (11, 12) drives. Druckeinheit nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Direktantriebsmotoren (19) die jeweiligen Farbwerke (16) ohne mechanische Kopplung zu den Zylindern (14, 15) der beiden Druckwerke (11, 12) antreiben.Printing unit according to claim 2 or 3, characterized in that the direct drive motors (19) drive the respective inking units (16) without mechanical coupling to the cylinders (14, 15) of the two printing units (11, 12). Druckeinheit nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der dem anderen Druckwerk (11), dem der Hauptantriebsmotor (18) nicht zugeordnet ist, zugeordnete Bremsmotor (20) unmittelbar oder mittelbar in den Formzylinder (15) des jeweiligen Druckwerks (11) und über Stirnradverbindungen mittelbar in die anderen Zylinder (14, 15) beider Druckwerke (11, 12) ein Bremsmoment im Fortdruck einbringt, um so die Zylinder (14, 15) beider Druckwerke (11, 12) gegeneinander zu verspannen.Printing unit according to one of claims 1 to 4, characterized in that the other printing unit (11) to which the main drive motor (18) is not assigned, associated brake motor (20) directly or indirectly in the forme cylinder (15) of the respective printing unit (11 ) and via spur gear indirectly in the other cylinder (14, 15) of both printing units (11, 12) introduces a braking torque in the continuous pressure, so as to clamp the cylinders (14, 15) of both printing units (11, 12) against each other. Druckeinheit nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass den Feuchtwerken (17) beider Druckwerke (11, 12) Direktantriebsmotoren zugeordnet sind, die im Fortdruck das jeweilige Feuchtwerk (17) eigenmotorisch antreiben.Printing unit according to one of claims 1 to 5, characterized in that the dampening units (17) of both printing units (11, 12) are associated with direct drive motors that drive the respective dampening unit (17) self-propelled in the continuous pressure. Druckeinheit nach Anspruch 6, dadurch gekennzeichnet, dass dasselbe als Druckwerk einer Illustrationsdruckmaschine mit horizontalem Bahnlauf des Bedruckstoffs (13) ausgebildet ist.Printing unit according to claim 6, characterized in that the same is designed as a printing unit of an illustration printing machine with horizontal web run of the printing material (13). Druckeinheit nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Feuchtwerke über Stirnradverbindungen vom Hauptantriebsmotor aus angetrieben sind.Printing unit according to one of claims 1 to 5, characterized in that the dampening units are driven by spur gear from the main drive motor. Druckeinheit nach Anspruch 8, dadurch gekennzeichnet, dass dasselbe als Druckwerk einer Zeitungsdruckmaschine mit vertikalem Bahnlauf des Bedruckstoffs ausgebildet ist.Printing unit according to claim 8, characterized in that it is designed as a printing unit of a newspaper printing machine with vertical web run of the printing material.
EP09165447.5A 2008-07-22 2009-07-14 Printing unit for a rotary printing press Active EP2147787B1 (en)

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DE102008034286A DE102008034286A1 (en) 2008-07-22 2008-07-22 Printing unit of a web-fed printing machine

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EP0846555A1 (en) * 1996-12-03 1998-06-10 MAN Roland Druckmaschinen AG Drive for a printing machine
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Also Published As

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DE102008034286A1 (en) 2010-01-28
EP2147787A3 (en) 2012-01-11
US20100018418A1 (en) 2010-01-28
EP2147787B1 (en) 2014-03-05

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