EP2036726A2 - Method for operating a sheet fed printing press - Google Patents

Method for operating a sheet fed printing press Download PDF

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Publication number
EP2036726A2
EP2036726A2 EP08163954A EP08163954A EP2036726A2 EP 2036726 A2 EP2036726 A2 EP 2036726A2 EP 08163954 A EP08163954 A EP 08163954A EP 08163954 A EP08163954 A EP 08163954A EP 2036726 A2 EP2036726 A2 EP 2036726A2
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EP
European Patent Office
Prior art keywords
printing
driven
speed
cylinder
units
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Granted
Application number
EP08163954A
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German (de)
French (fr)
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EP2036726B1 (en
EP2036726A3 (en
Inventor
Ulrich Beitel
Tobias Vorbröcker
Holger Dr. Wiese
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Manroland Sheetfed GmbH
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Manroland AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/06—Tripping devices or stop-motions for starting or stopping operation of sheet or web feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/004—Electric or hydraulic features of drives
    • B41F13/0045—Electric driving devices
    • 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
    • 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

Definitions

  • the invention relates to a method for operating a sheet-fed printing press according to the preamble of claim 1.
  • a sheetfed press has a feeder, a jib, and several printing units positioned between the feeder and the jib. For printing sheets are introduced from the feeder into the sheet-fed press and moved sequentially through the printing units, wherein after printing the sheets are ejected in the same area of the boom from the sheet-fed press.
  • Sheet-fed printing presses are known in practice which, in addition to at least one main drive, also have additional drives assigned to the printing units and can be synchronized with the or each main drive, in particular direct drives.
  • the additional drives assigned to the printing units drive, for example, into the form cylinder of the printing units.
  • the sheet-fed printing press usually has a so-called false-sheet detection device, wherein a missing sheet is to be understood as a printed sheet that deviates from a correct printed sheet with regard to at least one property.
  • a missing sheet it can be For example, a double sheet, multiple sheet or oblique sheet act. Missing sheets trigger stoppers on the press. However, stoppers can also be triggered by other causes.
  • the procedure is that disengaged after the occurrence of a stopper of the feeder and all printed sheets located in the printing presses are transported in the range of the boom in which the press either at a constant speed or gradually with a jogging speed turned off printing is operated forward rotating.
  • the present invention is based on the problem to provide a novel method for operating a sheet-fed press.
  • the or each main drive is driven at a constant speed or in jogging oscillating with a jogging speed, so that sheet can be discharged from the printing units using the driven at the constant speed or the jog speed transfer cylinder and impression cylinder, whereas the or each accessory drive is driven at a lower speed, so that the form cylinder and the inking units of the printing units are driven during the discharge of the sheet from the printing units at a lower speed than the transfer cylinders and impression cylinders of the printing units.
  • the present invention relates to a method for operating a sheet-fed printing press, wherein a sheet-fed press comprises a feeder, a boom and a plurality of printing units positioned between the feeder and the boom.
  • a sheet-fed press comprises a feeder, a boom and a plurality of printing units positioned between the feeder and the boom.
  • FIG Fig. 1 for a sheet-fed press comprising four printing units 10, 11, 12 and 13.
  • Each of the printing units 10, 11, 12 and 13 of the sheet-fed printing machine comprises according to Fig. 1 an impression cylinder 14, a transfer cylinder 15, an inking unit 16 and a forme cylinder 17.
  • each printing unit may also include a dampening unit.
  • the printing machine has a main drive 19, wherein the main drive 19 drives into the impression cylinder 14 of the printing unit 10.
  • the main drive 19 are all the impression cylinder 14, transfer cylinder 15 and inking 16 of the printing units 10, 11, 12 and 13 and the transfer cylinder 18 in the sense of a closed Räderzugs drivable.
  • a further main drive 19 ' is present to drive decentralized in the closed gear train.
  • Each form cylinder 17 is a separate and designed as a direct drive 20, with the or each main drive 19, 19 'synchronizable auxiliary drive assigned to the form cylinder 17 of all printing units 10, 11, 12 and 13 propelled by an engine.
  • Each forme cylinder 17 of each printing unit 10, 11, 12 and 13 is uncoupled via a clutch 21 from the closed gear train, in which the impression cylinder 14, the transfer cylinder 15 and the transfer cylinder 18 are integrated.
  • Fig. 1 can be removed, in addition to the clutches 21 more clutches 22 are provided with which the inking units 16 can be disconnected from the closed gear train.
  • all counter-pressure cylinders 14, all transfer cylinders 18, all transfer cylinders 15 and all inking units 16 are driven by the main drive 19, for which purpose the clutches 21 opened and the clutches 22 are closed.
  • the inking units 16 When printing the form cylinder 17 are therefore on the drive side of the main drive 19 and thus decoupled from the rest of the printing units of the printing press, the inking units 16, however, the drive side coupled to the main drive 19.
  • the forme cylinders 17 are driven by their direct drives 20 on their own. If a stopper occurs on such a sheet-fed printing machine, the feeder is first disengaged from the main drive, so that no new printed sheets are introduced into the sheet-fed printing press.
  • the or each main drive 19, 19 ' is preferably driven at a constant speed after occurrence of a stop, so that sheet can be discharged with the help of the constant speed driven transfer cylinder 15, impression cylinder 14 and transfer cylinder 18 from the printing units.
  • the direct drives 20, however, are driven at a lower speed than the constant speed, wherein both the forme cylinder 17 and the inking units 16 are driven in the discharge of printed sheets from the direct drives 20 of the forme cylinder 17.
  • the clutches 21 are closed and the clutches 22 are opened.
  • the forme cylinder 17 and inking units 16 of the printing units are driven at a lower speed than the transfer cylinders 15, impression cylinders 14 and transfer cylinders 18.
  • the forme cylinders 17 and inking units 16 are accordingly the printing units are driven synchronously by the direct drives 20 of the printing units, so that when resuming the printing operation no synchronization of the inking units 16 is required.
  • the inking units 16 are always operated synchronously to the forme cylinders 17 during discharge of the printed sheets, so that when to resume the Printing the plate cylinder 17 are synchronized to the main drive 19, automatically the inking units 16 to the or each main drive 19, 19 'are synchronized, so a Wiederankoppeln the inking units to the or each main drive 19, 19' by opening the clutches 21 and closing the Clutches 22 can be done with little effort.
  • the impression cylinder 14, transfer cylinder 18 and transfer cylinder 15 are driven for discharging the sheet at a constant speed, the sheets can be discharged within a relatively short time from the sheet-fed press.
  • the reduced rotational speed for the inking units 16 and the forme cylinder 17 prevents a leveling of the inked gradient as well as over-coloration and zonal blurring of the color profile.
  • the speed of the same relative to the constant speed can be arbitrarily reduced.
  • the inking units 16 and plate cylinder 17 can also be stopped or stopped.
  • the direct drives 20 are driven at a lower speed than the jogging speed, wherein both the forme cylinder 17 and the inking units 16 are driven during the discharge of printed sheets from the direct drives 20 of the forme cylinder 17.
  • the speed at which the direct drives 20 are driven during the discharge is smaller than the speed of the or each main drive 19, 19 'averaged during the inching operation.
  • the additional drives associated with the printing units are designed as direct drives associated with the forme cylinders.
  • z. B. designed as direct drives auxiliary drives are assigned to the transfer cylinders, which drive into the transfer cylinder during printing.
  • the additional drives are assigned to the inking units of the printing units, which drive into the inking units during printing.

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

Abstract

The method involves driving a main drive (19) with a constant rotational speed or with a lead rotational speed in an oscillating manner during a lead operation, after an emergence of a stopper such that a printed sheet is discharged from printing units (10-13) using a transfer cylinder (15) and a counter pressure cylinder (14). An auxiliary drive (20) is driven with a smaller speed such that a plate cylinder (17) and inking units (16) of the printing units are driven with a smaller rotational speed than the transfer and counter pressure cylinders during the discharge of the printed sheet.

Description

Die Erfindung betrifft ein Verfahren zum Betreiben einer Bogendruckmaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for operating a sheet-fed printing press according to the preamble of claim 1.

Eine Bogendruckmaschine verfügt über einen Anleger, einen Ausleger sowie mehrere zwischen dem Anleger und dem Ausleger positionierte Druckwerke. Zum Bedrucken von Druckbogen werden dieselben vom Anleger in die Bogendruckmaschine eingeschleust und nacheinander durch die Druckwerke bewegt, wobei nach dem Bedrucken der Druckbogen dieselben im Bereich des Auslegers aus der Bogendruckmaschine ausgeschleust werden. Je größer die Produktionsmöglichkeiten der Bogendruckmaschine sein sollen, desto größer ist die Anzahl der Druckwerke zwischen dem Anleger und Ausleger.A sheetfed press has a feeder, a jib, and several printing units positioned between the feeder and the jib. For printing sheets are introduced from the feeder into the sheet-fed press and moved sequentially through the printing units, wherein after printing the sheets are ejected in the same area of the boom from the sheet-fed press. The greater the production capabilities of the sheetfed press should be, the greater the number of printing units between the feeder and boom.

Aus der Praxis sind Bogendruckmaschinen bekannt, die zusätzlich zu mindestens einem Hauptantrieb weiterhin den Druckwerken zugeordnete, mit dem oder jedem Hauptantrieb synchronisierbare Zusatzantriebe, insbesondere Direktantriebe, aufweisen. Die den Druckwerken zugeordneten Zusatzantriebe treiben zum Beispiel in Formzylinder der Druckwerke ein.Sheet-fed printing presses are known in practice which, in addition to at least one main drive, also have additional drives assigned to the printing units and can be synchronized with the or each main drive, in particular direct drives. The additional drives assigned to the printing units drive, for example, into the form cylinder of the printing units.

Beim Drucken mit einer solchen Druckmaschine werden typischerweise bis auf die Formzylinder der Druckwerke sämtliche Baugruppen von dem oder jedem Hauptantrieb angetrieben, die Formzylinder der Druckwerke werden hingegen von den denselben zugeordneten Zusatzantrieben, insbesondere den Direktantrieben, eigenmotorisch angetrieben.When printing with such a printing press typically all components are driven by the or each main drive except for the form cylinder of the printing units, the form cylinder of the printing units, however, driven by the same associated auxiliary drives, especially the direct drives, self-propelled.

Im Bereich des Anlegers verfügt die Bogendruckmaschine üblicherweise über eine sogenannte Fehlbogendetektionseinrichtung, wobei unter einem Fehlbogen ein Druckbogen verstanden werden soll, der hinsichtlich wenigstens einer Eigenschaft von einem korrekten Druckbogen abweicht. Bei einem Fehlbogen kann es sich z.B. um einen Doppelbogen, Mehrfachbogen oder Schrägbogen handeln. Fehlbogen lösen an der Druckmaschine Stopper aus. Stopper können jedoch auch durch andere Ursachen ausgelöst werden.In the area of the investor, the sheet-fed printing press usually has a so-called false-sheet detection device, wherein a missing sheet is to be understood as a printed sheet that deviates from a correct printed sheet with regard to at least one property. With a missing sheet it can be For example, a double sheet, multiple sheet or oblique sheet act. Missing sheets trigger stoppers on the press. However, stoppers can also be triggered by other causes.

Nach der Praxis wird bei Auftreten eines Stoppers so vorgegangen, dass nach Auftreten eines Stoppers der Anleger ausgekuppelt und alle im Bereich der Druckwerke befindliche Druckbogen in den Bereich des Auslegers transportiert werden, in dem die Druckmaschine entweder mit einer konstanten Drehzahl oder schrittweise mit einer Tippdrehzahl bei abgestelltem Druck vorwärts drehend betrieben wird.In practice, when a stopper occurs, the procedure is that disengaged after the occurrence of a stopper of the feeder and all printed sheets located in the printing presses are transported in the range of the boom in which the press either at a constant speed or gradually with a jogging speed turned off printing is operated forward rotating.

Während des Ausschleusens der Druckbogen erfolgt keine Farbübergabe von den Farbwerken der Druckwerke an die auf den Formzylindern positionierten Druckplatten, sodass sich ein während des Fortdrucks aufgebautes Farbschichtdickengefälle während des Ausschleusens der Druckplatten zu einem relativ hohen Durchschnittswert egalisiert. Ferner wird durch eine Changierbewegung von Farbwerkwalzen die zonale Farbgebung verwischt. Dies hat zur Folge, dass nach Beseitigen eines Stoppers mit Wiederaufnahme des Druckbetriebs dennoch eine Vielzahl von Makulaturbögen gedruckt werden, bis sich die gewünschte Farbgebung wieder eingestellt hat. Es besteht daher ein Bedarf an einem neuartigen Verfahren zum Betreiben einer Bogendruckmaschine, mit Hilfe dessen die Anlaufmakulatur nach Beseitigung eines Stoppers reduziert werden kann.During the discharge of the printing sheet no color transfer from the inking units of the printing units to the printing cylinders positioned on the printing plates, so that a built-up during the printing ink layer thickness gradient during the discharge of the printing plates equalized to a relatively high average value. Furthermore, the zonal color is blurred by a traversing movement of inking rollers. This has the consequence that after eliminating a stopper with resumption of printing operation still a variety of spoof sheets are printed until the desired color has been restored. There is therefore a need for a novel method for operating a sheet-fed printing press, by means of which the start-up waste can be reduced after removal of a stopper.

Hiervon ausgehend liegt der vorliegenden Erfindung das Problem zugrunde, ein neuartiges Verfahren zum Betreiben einer Bogendruckmaschine zu schaffen.On this basis, the present invention is based on the problem to provide a novel method for operating a sheet-fed press.

Dieses Problem wird durch ein Verfahren gemäß Anspruch 1 gelöst. Erfindungsgemäß wird nach Auftreten eines Stoppers der oder jeder Hauptantrieb mit einer konstanten Drehzahl oder im Tippbetrieb oszillierend mit einer Tippdrehzahl angetrieben, sodass Druckbogen mit Hilfe der mit der konstanten Drehzahl oder der Tippdrehzahl angetriebenen Übertragungszylinder und Gegendruckzylinder aus den Druckwerken ausgeschleust werden können, wohingegen der oder jeder Zusatzantrieb mit einer kleineren Drehzahl angetrieben wird, sodass die Formzylinder und die Farbwerke der Druckwerke während des Ausschleusens der Druckbogen aus den Druckwerken mit einer kleineren Drehzahl angetrieben werden als die Übertragungszylinder und Gegendruckzylinder der Druckwerke.This problem is solved by a method according to claim 1. According to the invention, after the occurrence of a stopper, the or each main drive is driven at a constant speed or in jogging oscillating with a jogging speed, so that sheet can be discharged from the printing units using the driven at the constant speed or the jog speed transfer cylinder and impression cylinder, whereas the or each accessory drive is driven at a lower speed, so that the form cylinder and the inking units of the printing units are driven during the discharge of the sheet from the printing units at a lower speed than the transfer cylinders and impression cylinders of the printing units.

Mit dem erfindungsgemäßen Verfahren wird vorgeschlagen, bei dem durch Auftreten eines Stoppers verursachten Ausschleusen von Druckbogen die Formzylinder und Farbwerke der Druckwerke gemeinsam über die Zusatzantriebe der Druckwerke anzutreiben, und zwar mit einer kleineren Drehzahl als die Drehzahl, mit Hilfe derer der oder jeder Hauptantrieb und damit die Gegendruckzylinder sowie Übertragungszylinder der Druckwerke angetrieben wird bzw. werden. Hierdurch kann einer Egalisierung des Farbschichtdickengefälles beim durch einen Stopper verursachten Ausschleusen von Druckbogen aus der Bogendruckmaschine entgegengewirkt werden. Nach Wiederaufnahme des Druckbetriebs kann innerhalb deutlich kürzerer Zeit die gewünschte Farbgebung wieder hergestellt werden, sodass das Drucken von Makulaturbogen drastisch reduziert werden kann.With the method according to the invention is proposed in the caused by the occurrence of a stopper ejection of sheet printing plates and inking units of the printing units together on the auxiliary drives of the printing units, with a smaller speed than the speed, by means of which the or each main drive and thus the impression cylinder and transfer cylinder of the printing units is driven or will be. In this way, a leveling of the ink layer thickness difference can be counteracted in the caused by a stopper discharge of sheet from the sheet-fed press. After resuming printing, the desired color can be restored within a much shorter time, dramatically reducing waste sheet printing.

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

Fig. 1:
eine schematisierte Darstellung einer Bogendruckmaschine zur Verdeutlichung des erfindungsgemäßen Verfahrens zum Betreiben einer Bogendruckmaschine.
Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention will be described, without being limited thereto, with reference to the drawings. Showing:
Fig. 1:
a schematic representation of a sheet-fed press to illustrate the inventive method for operating a sheet-fed press.

Die hier vorliegende Erfindung betrifft ein Verfahren zum Betreiben einer Bogendruckmaschine, wobei eine Bogendruckmaschine einen Anleger, einen Ausleger sowie mehrere zwischen dem Anleger und dem Ausleger positionierte Druckwerke umfasst. Nachfolgend wird die hier vorliegende Erfindung unter Bezugnahme auf Fig. 1 für eine Bogendruckmaschine beschrieben, die vier Druckwerke 10, 11, 12 und 13 umfasst.The present invention relates to a method for operating a sheet-fed printing press, wherein a sheet-fed press comprises a feeder, a boom and a plurality of printing units positioned between the feeder and the boom. Hereinafter, the present invention will be described with reference to FIG Fig. 1 for a sheet-fed press comprising four printing units 10, 11, 12 and 13.

Jedes der Druckwerke 10, 11, 12 und 13 der Bogendruckmaschine umfasst gemäß Fig. 1 einen Gegendruckzylinder 14, einen Übertragungszylinder 15, ein Farbwerk 16 sowie einen Formzylinder 17. Zusätzlich kann jedes Druckwerk auch ein Feuchtwerk umfassen. Zwischen den Gegendruckzylindern 14 zweier benachbarter Druckwerke 10 und 11, 11 und 12 sowie 12 und 13 ist im gezeigten Ausführungsbeispiel der Fig. 1 jeweils ein Transferzylinder 18 positioniert, um zu bedruckende Bedruckstoffbogen zwischen den einzelnen Druckwerken 10, 11, 12 und 13 zu überführen.Each of the printing units 10, 11, 12 and 13 of the sheet-fed printing machine comprises according to Fig. 1 an impression cylinder 14, a transfer cylinder 15, an inking unit 16 and a forme cylinder 17. In addition, each printing unit may also include a dampening unit. Between the counter-pressure cylinders 14 of two adjacent printing units 10 and 11, 11 and 12 and 12 and 13 is in the illustrated embodiment of the Fig. 1 one transfer cylinder 18 is positioned in each case in order to transfer printing material sheets to be printed between the individual printing units 10, 11, 12 and 13.

Gemäß Fig. 1 weist die Druckmaschine einen Hauptantrieb 19 auf, wobei der Hauptantrieb 19 in den Gegendruckzylinder 14 des Druckwerks 10 eintreibt. Über den Hauptantrieb 19 sind sämtliche Gegendruckzylinder 14, Übertragungszylinder 15 sowie Farbwerke 16 der Druckwerke 10, 11, 12 und 13 sowie die Transferzylinder 18 im Sinne eines geschlossenen Räderzugs antreibbar. Wie Fig. 1 entnommen werden kann, ist es möglich, dass zusätzlich zu dem Hauptantrieb 19 ein weiterer Hauptantrieb 19' vorhanden ist, um dezentral in den geschlossenen Räderzug einzutreiben. Gemäß Fig. 1 ist jedem Formzylinder 17 ein separater und als Direktantrieb 20 ausgebildeter, mit dem oder jedem Hauptantrieb 19, 19' synchronisierbarer Zusatzantrieb zugeordnet, um die Formzylinder 17 aller Druckwerke 10, 11, 12 und 13 eigenmotorisch anzutreiben. Jeder Formzylinder 17 jedes Druckwerks 10, 11, 12 und 13 ist dabei über eine Kupplung 21 vom geschlossenen Räderzug, in den die Gegendruckzylinder 14, die Übertragungszylinder 15 sowie die Transferzylinder 18 eingebunden sind, abkuppelbar.According to Fig. 1 the printing machine has a main drive 19, wherein the main drive 19 drives into the impression cylinder 14 of the printing unit 10. About the main drive 19 are all the impression cylinder 14, transfer cylinder 15 and inking 16 of the printing units 10, 11, 12 and 13 and the transfer cylinder 18 in the sense of a closed Räderzugs drivable. As Fig. 1 can be removed, it is possible that in addition to the main drive 19, a further main drive 19 'is present to drive decentralized in the closed gear train. According to Fig. 1 Each form cylinder 17 is a separate and designed as a direct drive 20, with the or each main drive 19, 19 'synchronizable auxiliary drive assigned to the form cylinder 17 of all printing units 10, 11, 12 and 13 propelled by an engine. Each forme cylinder 17 of each printing unit 10, 11, 12 and 13 is uncoupled via a clutch 21 from the closed gear train, in which the impression cylinder 14, the transfer cylinder 15 and the transfer cylinder 18 are integrated.

Wie Fig. 1 entnommen werden kann, sind neben den Kupplungen 21 weitere Kupplungen 22 vorhanden, mit denen auch die Farbwerke 16 vom geschlossenen Räderzug abgekuppelt werden können.As Fig. 1 can be removed, in addition to the clutches 21 more clutches 22 are provided with which the inking units 16 can be disconnected from the closed gear train.

Zum Drucken werden, wie bereits ausgeführt, sämtliche Gegendruckzylinder 14, sämtliche Transferzylinder 18, sämtliche Übertragungszylinder 15 sowie sämtliche Farbwerke 16 vom Hauptantrieb 19 angetrieben, wobei hierzu die Kupplungen 21 geöffnet und die Kupplungen 22 geschlossen sind. Beim Drucken sind demnach die Formzylinder 17 antriebsseitig vom Hauptantrieb 19 und damit vom Rest der Druckwerke der Druckmaschine entkoppelt, die Farbwerke 16 sind hingegen antriebsseitig an den Hauptantrieb 19 gekoppelt. Zum Drucken werden die Formzylinder 17 von ihren Direktantrieben 20 eigenmotorisch angetrieben. Tritt an einer solchen Bogendruckmaschine ein Stopper auf, so wird zunächst der Anleger vom Hauptantrieb ausgekuppelt, sodass keine neuen Druckbogen in die Bogendruckmaschine eingeschleust werden.For printing, as already stated, all counter-pressure cylinders 14, all transfer cylinders 18, all transfer cylinders 15 and all inking units 16 are driven by the main drive 19, for which purpose the clutches 21 opened and the clutches 22 are closed. When printing the form cylinder 17 are therefore on the drive side of the main drive 19 and thus decoupled from the rest of the printing units of the printing press, the inking units 16, however, the drive side coupled to the main drive 19. For printing, the forme cylinders 17 are driven by their direct drives 20 on their own. If a stopper occurs on such a sheet-fed printing machine, the feeder is first disengaged from the main drive, so that no new printed sheets are introduced into the sheet-fed printing press.

Im Sinne des erfindungsgemäßen Verfahrens wird nach Auftreten eines Stoppers der oder jeder Hauptantrieb 19, 19' vorzugsweise mit einer konstanten Drehzahl angetrieben, sodass Druckbogen mit Hilfe der mit der konstanten Drehzahl angetriebenen Übertragungszylinder 15, Gegendruckzylinder 14 sowie Transferzylinder 18 aus den Druckwerken ausgeschleust werden können.For the purposes of the method according to the invention, the or each main drive 19, 19 'is preferably driven at a constant speed after occurrence of a stop, so that sheet can be discharged with the help of the constant speed driven transfer cylinder 15, impression cylinder 14 and transfer cylinder 18 from the printing units.

Die Direktantriebe 20 werden hingegen mit einer kleineren Drehzahl als die konstante Drehzahl angetrieben, wobei sowohl die Formzylinder 17 als auch die Farbwerke 16 beim Ausschleusen von Druckbogen von den Direktantrieben 20 der Formzylinder 17 angetrieben werden. Zum Ausschleusen der Druckbogen sind demnach die Kupplungen 21 geschlossen und die Kupplungen 22 geöffnet.The direct drives 20, however, are driven at a lower speed than the constant speed, wherein both the forme cylinder 17 and the inking units 16 are driven in the discharge of printed sheets from the direct drives 20 of the forme cylinder 17. For the discharge of the printed sheets, therefore, the clutches 21 are closed and the clutches 22 are opened.

Beim Ausschleusen von Druckbogen nach Auftreten eines Stoppers werden demnach die Formzylinder 17 sowie Farbwerke 16 der Druckwerke mit einer kleineren Drehzahl angetrieben als die Übertragungszylinder 15, Gegendruckzylinder 14 sowie Transferzylinder 18. Beim Ausschleusen von Druckbogen nach Auftreten eines Stoppers werden demnach die Formzylinder 17 sowie Farbwerke 16 der Druckwerke synchron von den Direktantrieben 20 der Druckwerke angetrieben, sodass bei einer Wiederaufnahme des Druckbetriebs kein Synchronisieren der Farbwerke 16 erforderlich ist.When ejecting printed sheets after the occurrence of a stopper, therefore, the forme cylinder 17 and inking units 16 of the printing units are driven at a lower speed than the transfer cylinders 15, impression cylinders 14 and transfer cylinders 18. In the discharge of printed sheets after the occurrence of a stopper, the forme cylinders 17 and inking units 16 are accordingly the printing units are driven synchronously by the direct drives 20 of the printing units, so that when resuming the printing operation no synchronization of the inking units 16 is required.

Die Farbwerke 16 werden beim Ausschleusen der Druckbogen stets synchron zu den Formzylindern 17 betrieben, sodass dann, wenn zur Wiederaufnahme des Druckbetriebs die Plattenzylinder 17 an den Hauptantrieb 19 synchronisiert werden, automatisch auch die Farbwerke 16 an den oder jeden Hauptantrieb 19, 19' synchronisiert sind, sodass ein Wiederankoppeln der Farbwerke an den oder jeden Hauptantrieb 19, 19' durch Öffnen der Kupplungen 21 und Schließen der Kupplungen 22 mit geringem Aufwand erfolgen kann.The inking units 16 are always operated synchronously to the forme cylinders 17 during discharge of the printed sheets, so that when to resume the Printing the plate cylinder 17 are synchronized to the main drive 19, automatically the inking units 16 to the or each main drive 19, 19 'are synchronized, so a Wiederankoppeln the inking units to the or each main drive 19, 19' by opening the clutches 21 and closing the Clutches 22 can be done with little effort.

Dadurch, dass die Gegendruckzylinder 14, Transferzylinder 18 sowie Übertragungszylinder 15 zum Ausschleusen der Druckbogen mit der konstanten Drehzahl angetrieben werden, können die Druckbogen innerhalb einer relativ kurzen Zeit aus der Bogendruckmaschine ausgeschleust werden. Andererseits verhindert die reduzierte Drehzahl für die Farbwerke 16 sowie Formzylinder 17 eine Egalisierung des farbschichtigen Gefälles sowie eine Überfärbung und eine zonale Verwischung des Farbprofils.Characterized in that the impression cylinder 14, transfer cylinder 18 and transfer cylinder 15 are driven for discharging the sheet at a constant speed, the sheets can be discharged within a relatively short time from the sheet-fed press. On the other hand, the reduced rotational speed for the inking units 16 and the forme cylinder 17 prevents a leveling of the inked gradient as well as over-coloration and zonal blurring of the color profile.

Mit der separaten Ansteuerung der Formzylinder 17 sowie Farbwerke 16 über die Direktantriebe 20 der Druckwerke beim Ausschleusen von Druckbogen kann die Drehzahl derselben gegenüber der konstanten Drehzahl beliebig reduziert werden. Im Extremfall können die Farbwerke 16 sowie Plattenzylinder 17 auch angehalten bzw. stillgesetzt werden.With the separate control of the forme cylinder 17 and inking units 16 via the direct drives 20 of the printing units in the discharge of printed sheets, the speed of the same relative to the constant speed can be arbitrarily reduced. In an extreme case, the inking units 16 and plate cylinder 17 can also be stopped or stopped.

Im Sinne der Erfindung ist es ebenfalls möglich, dass nach Auftreten eines Stoppers der oder jeder Hauptantrieb 19, 19' im Tippbetrieb oszillierend mit einer Tippdrehzahl angetrieben wird, sodass Druckbogen mit Hilfe der mit der Tippdrehzahl angetriebenen Übertragungszylinder 15, Gegendruckzylinder 14 sowie Transferzylinder 18 aus den Druckwerken ausgeschleust werden können. Auch in diesem Fall werden die Direktantriebe 20 mit einer kleineren Drehzahl als die Tippdrehzahl angetrieben, wobei sowohl die Formzylinder 17 als auch die Farbwerke 16 beim Ausschleusen von Druckbogen von den Direktantrieben 20 der Formzylinder 17 angetrieben werden. Vorzugsweise ist die Drehzahl, mit der während des Ausschleusens die Direktantriebe 20 angetrieben werden, kleiner als die während des Tippbetriebs gemittelte Drehzahl des oder jedes Hauptantriebs 19, 19'.For the purposes of the invention, it is also possible that after occurrence of a stopper of the or each main drive 19, 19 'is driven in jogging oscillating with a jogging speed, so that sheet with the help of the jogging speed driven transfer cylinder 15, impression cylinder 14 and transfer cylinder 18 from the Printing units can be ejected. Also in this case, the direct drives 20 are driven at a lower speed than the jogging speed, wherein both the forme cylinder 17 and the inking units 16 are driven during the discharge of printed sheets from the direct drives 20 of the forme cylinder 17. Preferably, the speed at which the direct drives 20 are driven during the discharge is smaller than the speed of the or each main drive 19, 19 'averaged during the inching operation.

Unter Bezugnahme auf Fig. 1 wurde die Erfindung für den Fall beschreiben, dass die den Druckwerken zugeordneten Zusatzantriebe als den Formzylindern zugeordnete Direktantriebe ausgeführt sind. Im Unterscheid hierzu ist es auch möglich, dass z. B. als Direktantriebe ausgebildete Zusatzantriebe den Übertragungszylindern zugeordnet sind, die beim Drucken in die Übertragungszylinder eintreiben. Ebenso ist es möglich, dass die Zusatzantriebe den Farbwerken der Druckwerke zugeordnet sind, die beim Drucken in Walzen der Farbwerke eintreiben.With reference to Fig. 1 the invention was described for the case that the additional drives associated with the printing units are designed as direct drives associated with the forme cylinders. In contrast to this, it is also possible that z. B. designed as direct drives auxiliary drives are assigned to the transfer cylinders, which drive into the transfer cylinder during printing. It is also possible that the additional drives are assigned to the inking units of the printing units, which drive into the inking units during printing.

Claims (7)

Verfahren zum Betreiben einer Bogendruckmaschine, nämlich zum Ausschleusen von Druckbogen aus der Bogendruckmaschine nach Auftreten eines Stoppers, wobei die Bogendruckmaschine mehrere Druckwerke, mindestens einen Hauptantrieb und mehrere mit dem oder jedem Hauptantrieb synchronisierbare Zusatzantriebe aufweist, wobei jedes Druckwerk einen Formzylinder, einen auf dem Formzylinder abrollenden Übertragungszylinder, einen auf dem Übertragungszylinder abrollenden Gegendruckzylinder, ein Farbwerk sowie vorzugsweise ein Feuchtwerk aufweist, wobei zum Drucken zumindest die Gegendruckzylinder der Druckwerke von dem oder jedem Hauptantrieb und andere Zylinder bzw. Walzen der Druckwerke von jeweils einem dem jeweiligen Zylinder bzw. der Walze zugeordneten Zusatzantrieb eigenmotorisch angetrieben werden, wobei nach Auftreten eines Stoppers der Anleger ausgekuppelt wird,
dadurch gekennzeichnet,
dass nach Auftreten eines Stoppers der oder jeder Hauptantrieb mit einer konstanten Drehzahl oder im Tippbetrieb oszillierend mit einer Tippdrehzahl angetrieben wird, sodass Druckbogen mit Hilfe der mit der konstanten Drehzahl oder der Tippdrehzahl angetriebenen Übertragungszylinder und Gegendruckzylinder aus den Druckwerken ausgeschleust werden können, wohingegen der oder jeder Zusatzantrieb mit einer kleineren Drehzahl angetrieben wird, sodass die Formzylinder und die Farbwerke der Druckwerke während des Ausschleusens der Druckbogen aus den Druckwerken mit einer kleineren Drehzahl angetrieben werden als die Übertragungszylinder und Gegendruckzylinder der Druckwerke.Method for operating a sheet-fed printing machine, namely for discharging sheet from the sheet-fed press after occurrence of a stopper, the sheet-fed press having a plurality of printing units, at least one main drive and a plurality of synchronized with the or each main drive auxiliary drives, each printing unit a forme cylinder, a rolling on the forme cylinder At least the counter-pressure cylinders of the printing units of the or each main drive and other cylinders or rollers of the printing units of each assigned to the respective cylinder or the roller auxiliary drive for printing are driven by an engine, wherein after occurrence of a stopper of the investor is disengaged,
characterized,
that after occurrence of a stopper of the or each main drive at a constant speed or in jogging oscillating with a jogging speed is driven, so that sheets can be discharged using the driven at the constant speed or the jog speed transfer cylinder and impression cylinder from the printing units, whereas the or each Auxiliary drive is driven at a lower speed, so that the form cylinder and the inking units of the printing units are driven during the discharge of the sheet from the printing units at a lower speed than the transfer cylinders and impression cylinders of the printing units. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass während des Druckens die Übertragungszylinder, die Gegendruckzylinder und die Farbwerke der Druckwerke von dem oder jedem Hauptantrieb angetrieben werden.Method according to claim 1,
characterized,
that during the printing of the transfer cylinder, the impression cylinder and the inking units of the printing of the or each main drive are driven. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass während des Ausschleusens die Formzylinder und die Farbwerke der Druckwerke von dem Zusatzantrieb des jeweiligen Druckwerks angetrieben werden.Method according to claim 1 or 2,
characterized,
that during the ejection of the form cylinder and the inking units of the printing units are driven by the auxiliary drive of the respective printing unit. Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass nach Ausschleusen des letzten Druckbogens der Anleger an den Hauptantrieb angekuppelt wird.Method according to one of claims 1 to 3,
characterized,
that, after removal of the last printed sheet of investors is coupled to the main drive. Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass die Drehzahl, mit der während des Ausschleusens der oder jeder Zusatzantrieb angetrieben wird, kleiner ist als die konstante Drehzahl des oder jedes Hauptantriebs.Method according to one of claims 1 to 4,
characterized,
that the speed at which the or each auxiliary drive is driven during the discharge is smaller than the constant speed of the or each main drive. Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass die Drehzahl, mit der während des Ausschleusens der oder jeder Zusatzantrieb angetrieben wird, kleiner ist als die Tippdrehzahl des oder jedes Hauptantriebs.Method according to one of claims 1 to 4,
characterized,
that the speed at which the or each auxiliary drive is driven during the discharge is smaller than the jogging speed of the or each main drive. Verfahren nach Anspruch 6,
dadurch gekennzeichnet,
dass die Drehzahl, mit der während des Ausschleusens der oder jeder Zusatzantrieb angetrieben wird, kleiner ist als die während des Tippbetriebs gemittelte Drehzahl des oder jedes Hauptantriebs.Method according to claim 6,
characterized,
that the speed at which the or each additional drive is driven during the outward transfer, is smaller than the average during the jog speed of the or each main drive.
EP20080163954 2007-09-15 2008-09-09 Method for operating a sheet fed printing press Active EP2036726B1 (en)

Applications Claiming Priority (1)

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DE200710044157 DE102007044157A1 (en) 2007-09-15 2007-09-15 Method for operating a sheet-fed printing machine

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EP2368710A1 (en) * 2010-03-22 2011-09-28 Heidelberger Druckmaschinen AG Method for changing printing plates in a printing press with multiple printing units
CN102555441A (en) * 2010-10-18 2012-07-11 曼罗兰公司 Printing device

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DE102010022365B4 (en) 2009-06-26 2024-08-14 Heidelberger Druckmaschinen Ag Maintaining the color profile in the inking unit during printing interruptions

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EP1044910A2 (en) 1999-04-13 2000-10-18 MAN Roland Druckmaschinen AG Method and apparatus for starting a sheet printing machine
DE102005061512A1 (en) 2005-12-22 2007-07-05 Man Roland Druckmaschinen Ag Process to prepare for resumption of sheet paper color printing following an operational interruption

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EP1044910A2 (en) 1999-04-13 2000-10-18 MAN Roland Druckmaschinen AG Method and apparatus for starting a sheet printing machine
DE102005061512A1 (en) 2005-12-22 2007-07-05 Man Roland Druckmaschinen Ag Process to prepare for resumption of sheet paper color printing following an operational interruption

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2368710A1 (en) * 2010-03-22 2011-09-28 Heidelberger Druckmaschinen AG Method for changing printing plates in a printing press with multiple printing units
CN102211449A (en) * 2010-03-22 2011-10-12 海德堡印刷机械股份公司 Method for changing printing plates in a printing press with multiple printing units
CN102211449B (en) * 2010-03-22 2015-03-11 海德堡印刷机械股份公司 Method for changing printing plates in a printing press with multiple printing units,printing plates and control device
US9061487B2 (en) 2010-03-22 2015-06-23 Heidelberger Druckmaschinen Ag Method for changing printing plates in rotary printing presses having a plurality of printing units, printing press and controller
CN102555441A (en) * 2010-10-18 2012-07-11 曼罗兰公司 Printing device
EP2529928A1 (en) * 2010-10-18 2012-12-05 manroland sheetfed GmbH Printer
CN102555441B (en) * 2010-10-18 2015-09-02 曼罗兰纸张有限责任公司 Printing equipment

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DE102007044157A1 (en) 2009-03-26
EP2036726A3 (en) 2013-05-29
JP2009067053A (en) 2009-04-02

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