EP2298554B1 - Printing press for printing printed products - Google Patents

Printing press for printing printed products Download PDF

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Publication number
EP2298554B1
EP2298554B1 EP20090170734 EP09170734A EP2298554B1 EP 2298554 B1 EP2298554 B1 EP 2298554B1 EP 20090170734 EP20090170734 EP 20090170734 EP 09170734 A EP09170734 A EP 09170734A EP 2298554 B1 EP2298554 B1 EP 2298554B1
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EP
European Patent Office
Prior art keywords
ink
roller
ductor
printing press
blade
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EP20090170734
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German (de)
French (fr)
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EP2298554A1 (en
Inventor
Peter Gertsch
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Individual
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Individual
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Priority to EP20090170734 priority Critical patent/EP2298554B1/en
Publication of EP2298554A1 publication Critical patent/EP2298554A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/02Ducts, containers, supply or metering devices
    • B41F31/04Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/05Positioning devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/30Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/304Arrangements for inking roller bearings, forks or supports
    • B41F31/308Swinging bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00Cleaning
    • B41P2235/10Cleaning characterised by the methods or devices
    • B41P2235/26Spraying devices

Definitions

  • the present invention relates to a printing machine for printing on printed products such as newspapers, magazines and magazines, comprising at least one printing unit with a printing cylinder, a plate cylinder and an inking unit consisting of a plurality of inking rollers and a paint roller, which selectively at least a first ductor roller or a second ductor roller is engageable, which first ductor roller cooperates with a first ink fountain and a first colorimeter and which second ductor roller with a second ink fountain and a second colorimeter, wherein the first colorimeter and the second colorimeter with adjusting means for zoning of the color film on the respective ductor roller are provided, and means for washing the rollers.
  • Such printing machines are known, they are used in particular for the production of printed mass products such as newspapers, magazines and magazines.
  • large and costly production facilities are required.
  • the price of these products is determined on the one hand by the costs of the raw materials (color, paper) and on the other hand by the costs of the means of production (printing press).
  • a printing machine is known in which an inking unit is provided with a plurality of ink fountain and ductor roller.
  • a circulating endless ribbon is adapted, which can be pressed against one of the ductor rollers.
  • Each color meter of the respective ductor roller must be set individually.
  • the object of the present invention is therefore to design a printing press with such inking that switching from one product to another, in which different Color qualities must be used, with the least possible effort and in a very short time can be performed.
  • the solution of this object is achieved in that the first colorimeter, which cooperates with the first ductor roller, and the second colorimeter, which cooperates with the second ductor roller, are attached to a color knife bar, and that both colorimeters are simultaneously adjustable via common adjustment means.
  • the changeover from one color or color quality to the other, and thus from one print product production to another can be carried out very rapidly.
  • the adjustment means do not have to be used twice, which allows a simple structure, which is also reflected in terms of cost.
  • the ink film roller in swivel levers which are pivotally supported on both sides of the ink film roller on the frame of the printing press, rotatably mounted, which allows easy changeover of the ink film roller from the first ductor roller to the second ductor roller.
  • the first ductor roller and the second ductor roller can be driven to rotate by means of drive means, wherein the drive means are formed in particular from a single drive motor and gear wheels, which enables a simple and cost-effective construction.
  • the pivoting range of the pivot lever is limited by adjustable stops, which results in a simple manner, an accurate positioning of the ink fountain roller with respect to the first and the second ductor roller.
  • the adjusting means are composed of zone-wise adjusting elements, each adjusting element being adjustable individually by means of an adjusting screw and each adjusting element having a first cam which is in contact with the corresponding zone of the first colorimeter acts, and a second cam, which acts on the corresponding zone of the second colorimeter, is provided, which allows a simple and inexpensive construction.
  • one of the two cams is adjustable.
  • this cam can be additionally adjusted with respect to the cam set via the adjusting means.
  • a simple construction of the ink fountain can be achieved in that one of the two ink fountain is formed by the corresponding ink knife with side ink fountain walls and the respective ductor roller, and that the other ink fountain is designed as a dip tank for the corresponding ductor roller.
  • Another simple structure of the ink fountain is obtained by the fact that the first ink fountain are formed by the colorimeter bar mounted on the first ink knife with side ink fountain walls and the first ductor roller and the second ink fountain by the same color knife bar mounted second colorimeter with side ink fountain walls and the second ductor roller.
  • a further advantageous embodiment of the invention is that the ink film roller is in contact with a color intermediate roller, which is engageable with a first ink transfer roller when the ink film roller is employed on the first ductor roller and which is engageable with a second ink transfer roller when the ink film roller to the second ductor roller is employed, and that the first ink transfer roller and the second ink transfer roller are set against each other.
  • the direction of rotation of the ink film roller which can change depending on the arrangement of the ink fountain on the ductor rollers, can be adjusted in a simple manner.
  • the intermediate color roller is also in the pivot lever, in which the ink film roller is rotatably mounted, rotatable stored.
  • the ink fountain roller can be changed in accordance with the ink fountain roller in a simple manner.
  • FIG. 1 an inking unit 1 of a printing unit of a printing press is shown, which comprises in a known manner two inking rollers 2 and 8, which are employed on a plate cylinder 4. An inking roller 5 is in contact with these two inking rollers 2 and 3. At this ink roller 5, a first intermediate roller 6 is employed, which in turn is in contact with a further inking roller. 7
  • a first ductor roller 9 and a second ductor roller 10 is arranged.
  • the first ductor roller 9 cooperates with a first ink fountain 11 and a first ink knife 12, while the second ink fountain roller 10 cooperates with a second ink fountain 13 and a second ink meter 14.
  • the first colorimeter 12 and the second colorimeter 14 are attached to a common colorimeter bar 15.
  • adjusting means 16 are housed, with which both colorimeters 12 and 14 for adjusting the color film on the respective ductor roller 9 and 10 can be adjusted, as will be described later in detail.
  • a color film roller 17 is rotatably mounted in two pivoting levers 18, which pivot lever 18 are pivotally supported in a known manner on both sides of the ink film roller 17 on the frame of the printing press about a pivot axis 19.
  • This pivot lever 18 is pivotable about this pivot axis 19 via a linear drive 20, for example a pneumatic cylinder in a known manner, wherein the two end positions of this pivot lever 18 are defined by adjustable stops 21.
  • the ink film roller 17 can bring into operative connection with the first ductor roller 9 or with the second ductor roller 10.
  • a third intermediate roller 22 is also rotatably mounted on the pivoting levers 18, which is employed on the ink fountain roller 17. By pivoting the pivot lever 18 about the pivot axis 19, this third intermediate roller 22 is employed to the further ink fountain roller 7 or to the second intermediate roller 8.
  • the third intermediate roller 22 is mounted in a known manner adjustable in the pivoting levers 18, and is also the second intermediate roller 8 adjustably mounted in the frame of the printing press, so that the mutual desired employment of the corresponding rollers is guaranteed in the different modes.
  • Fig. 1 illustrated printing unit is designed as an offset printing unit, which is why in addition a dampening unit 54 is arranged, with which the dampening solution, which is housed in a trough 55, via a Dipping roller 56 and dampening rollers 57 and 58 can be applied to the plate cylinder 4 of the printing unit.
  • a dampening unit 54 is arranged, with which the dampening solution, which is housed in a trough 55, via a Dipping roller 56 and dampening rollers 57 and 58 can be applied to the plate cylinder 4 of the printing unit.
  • the inventive arrangement of two Farbzu 1500systemen in a printing unit is not limited to offset printing, but these are also used in other printing processes also in the corresponding inking.
  • Each of these adjusting elements 24 comprises an adjusting screw 25, consisting of a rotatably mounted in the cutter bar 15 threaded sleeve 26 which cooperates with a corresponding threaded pin 27 which is connected via a push rod 28 with a first cam 29 and a second cam 30.
  • each of these adjusting elements 24 is equipped with an absolute encoder 34, which is connected via a further gear 35 with the gears 33.
  • the two ink knives 12 and 14 are equipped with a separate closing mechanism 36, with which it is possible to bring the respective ink knife 12 and 14, regardless of the adjusted via the adjusting means 16 position of the individual zones in the closed position.
  • FIG. 2 The arrangement shown forms the first ink fountain roller 9 together with the first ink knife 12 and the upper portion of the ink knife bar 15 with the ink fountain side walls, not shown, the first ink fountain 11, in which there is the color for the one Farbzu slaughtersystem for the printing unit.
  • the other ink supply system is formed by the second ink fountain 13 in which the second fountain roller 10 is immersed and which can be filled with another color accordingly.
  • the desired zonewise adjustable color film is created, this ink film is transferred to the ink fountain roller 17, which, as to Fig.
  • the ink fountain rollers 9 and 10 are driven at low speed, the ink film roller 17 has a peripheral speed which corresponds approximately to the printing speed, and is thus many times higher than that of the ductor rollers 9 or 10.
  • the ink film roller 17 is therefore in such a way Ductor roller 9 or 10 employed that no direct contact between the two rollers occurs, but there is a gap which is so large that the ink film on the respective ductor roller 9 or 10 can be picked up by the ink fountain roller 17 and transferred to the other inking unit rollers.
  • Fig. 3 is the one side of the storage of the first ductor roller 9 and the second ductor roller 10 shown in the frame 37 of the printing press, the axes 38 of the two ductor rollers 9 and 10 are in this case held in bearings 39, which are inserted into corresponding recesses on the frame 37.
  • On the two axes 38 of the ductor rollers 9 and 10 each have a spur gear 40 is placed, which mesh with each other.
  • One of these two spur gears 40 meshes with a drive wheel 41, which is attached to a variable speed geared motor 42, via which the two ductor rollers 9 and 10 are driven.
  • each of the adjusting means has a first cam 29 and a second cam 30, the first cam 29 is rotationally guided in the ink knife bar 15 longitudinally displaceable, the second cam 30 is a threaded pin 43 and a corresponding lock nut 44 finely adjustable in the first cam 29 attached.
  • a further embodiment of the inventive device is shown.
  • the ink knife bar 15 to which the first ink knife 12, which cooperates with the first ductor roller 9, and the second color knife 14, which cooperates with the second ductor roller 10 are arranged.
  • the adjusting means for adjusting the first colorimeter 12 and the second colorimeter 14 are mounted in the ink knife bar 15, again consisting of a plurality of adjusting elements 24 arranged one behind the other, each having a first cam 29 and a second cam 30, via which the first colorimeter 12 and the second Color meter 14 are adjustable in zones, according to the adjustability, as has been set out to the previously described embodiment.
  • the ink blade bar 15 forms, together with the first ink knife 12 and the first ink fountain roller 9, the first ink fountain 11 and, together with the second ink knife 14 and the second fountain roller 2, the second ink fountain 13.
  • the ink film roller 17 is in turn rotatably mounted on a pivot lever 18 which is pivotable about the pivot axis 19.
  • a pivot lever 18 By pivoting this pivot lever 18, the ink fountain roller 17 to the first ductor roller 9 or to the second ductor roller 10, as previously described, can be adjusted.
  • the pivoting of the pivot lever 18 is again carried out via a linear drive 20.
  • the third intermediate roller 22 which is employed on the ink film roller 17.
  • this third intermediate roller is employed either to the other ink roller 7 or to the second intermediate roller 8, whereby the rotational seal reversal compensated and the other inking rollers, as in Fig. 1 show, always turn in the right direction.
  • the color box described above can be equipped with an automatic ink supply, which ensures a continuous filling of the ink fountain.
  • a level control can be attached, so that the ink fountain are always optimally filled during the printing process.
  • a washing device 49 is mounted in the inking unit, consisting essentially of a spraying device 50 for spraying the cleaning agent on the rollers and an engageable on one of the rollers Abrakel Road 51 with a doctor blade 52 and a catch basin 53.
  • a washing device 49 is mounted in the inking unit, consisting essentially of a spraying device 50 for spraying the cleaning agent on the rollers and an engageable on one of the rollers Abrakel Road 51 with a doctor blade 52 and a catch basin 53.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die vorliegende Erfindung bezieht sich auf eine Druckmaschine zum Bedrucken von Druckprodukten wie Zeitungen, Zeitschriften und Magazine, umfassend mindestens ein Druckwerk mit einem Druckzylinder, einem Plattenzylinder und einem Farbwerk, bestehend aus mehreren Farbwerkswalzen und einer Farbfilmwalze, die wahlweise an mindestens eine erste Duktorwalze oder an eine zweite Duktorwalze anstellbar ist, welche erste Duktorwalze mit einem ersten Farbkasten und einem ersten Farbmesser und welche zweite Duktorwalze mit einem zweiten Farbkasten und einem zweiten Farbmesser zusammenwirkt, wobei das erste Farbmesser und das zweite Farbmesser mit Einstellmitteln zum zonenweisen Einstellen des Farbfilms auf der jeweiligen Duktorwalze versehen sind, und eine Einrichtung zum Waschen der Walzen.The present invention relates to a printing machine for printing on printed products such as newspapers, magazines and magazines, comprising at least one printing unit with a printing cylinder, a plate cylinder and an inking unit consisting of a plurality of inking rollers and a paint roller, which selectively at least a first ductor roller or a second ductor roller is engageable, which first ductor roller cooperates with a first ink fountain and a first colorimeter and which second ductor roller with a second ink fountain and a second colorimeter, wherein the first colorimeter and the second colorimeter with adjusting means for zoning of the color film on the respective ductor roller are provided, and means for washing the rollers.

Derartige Druckmaschinen sind bekannt, sie dienen insbesondere zum Herstellen von gedruckten Massenprodukten wie Zeitungen, Zeitschriften und Magazine. Zur Herstellung dieser Massenprodukte sind grosse und kostenintensive Produktionsanlagen erforderlich. Der Preis dieser Produkte wird einerseits von den Kosten der Rohstoffe (Farbe, Papier) und andererseits jedoch auch von den Kosten der Produktionsmittel (Druckmaschine) bestimmt.Such printing machines are known, they are used in particular for the production of printed mass products such as newspapers, magazines and magazines. For the production of these mass products large and costly production facilities are required. The price of these products is determined on the one hand by the costs of the raw materials (color, paper) and on the other hand by the costs of the means of production (printing press).

Um die Kosten für diese gedruckten Massenprodukte möglichst tief halten zu können, sollen diese Druckmaschinen für einen flexiblen Gebrauch ausgelegt sein. Dadurch können unterschiedliche Produkte hergestellt werden, wodurch der Nutzungsgrad dieser Maschinen massiv vergrössert werden kann, was sich auf die Kosten der Druckprodukte auswirkt.In order to keep the cost of these printed mass products as low as possible, these printing machines should be designed for flexible use. As a result, different products can be produced, whereby the utilization of these machines can be massively increased, which has an impact on the cost of printed products.

Tageszeitungen und qualitativ minderwertige Magazine und Akzidenzen werden mit Papier geringerer Qualität und ohne Trocknung hergestellt. Bei Druckprodukten hoher Qualität müssen höhere Anforderungen erfüllt werden, so wird eine höhere Farbintensität mit mehr Glanz verlangt, was ein glattes, nicht saugfähiges Glanzpapier verlangt, bei welchem die bedruckten Produkte nach dem Druck getrocknet werden müssen, um ein Abschmieren der Farbe zu verhindern. Neben den zusätzlich erforderlichen Trockenvorrichtungen muss bei derartigem Papier auch mit einer anderen Farbe gearbeitet werden, als beispielsweise bei den Tageszeitungen.Newspapers and substandard magazines and commercials are produced with lower quality paper and no drying. For high quality print products, higher requirements have to be met, requiring a higher color intensity with more gloss, which requires a smooth, non-absorbent glossy paper in which the printed products must be dried after printing to prevent smearing of the paint. In addition to the additional required Dryers must be used in such paper with a different color, as for example in the newspapers.

Dies bedeutet, dass eine Produktionsanlage von der einen Papierqualität auf eine andere Papierqualität umgestellt werden muss, was mit den heutigen Abrollvorrichtungen sehr rasch bewerkstelligt werden kann.This means that a production line has to be changed from one paper quality to another paper grade, which can be accomplished very quickly with today's unwinding devices.

Zusätzlich muss auch die Farbe in den Farbwerken gewechselt werden, die entsprechenden Walzen müssen gereinigt werden. Dies kann mit den heute bekannten Walzenwaschvorrichtungen relativ rasch durchgeführt werden.In addition, the color in the inking units must be changed, the corresponding rollers must be cleaned. This can be done relatively quickly with the roller washers known today.

Einen bedeutend grösseren Aufwand erfordert das Wechseln der Farbe in den Farbkasten. Bevor eine neue Farbe eingesetzt werden kann, müssen die Farbkasten und die Farbmesser mit entsprechendem Aufwand gereinigt werden. Insbesondere bei unten liegenden Farbmessern ist ein erheblicher Aufwand erforderlich. Bei oben liegenden Farbmessern ist der Aufwand etwas geringer, insbesondere wenn mit auswechselbaren Einsatzfarbkasten gearbeitet wird, das Farbmesser muss jedoch trdtzdem abgeschwenkt werden, um es entsprechend reinigen zu können. Eine derartige Druckmaschine muss, insbesondere wenn sie zur täglichen Produktion von Zeitungen eingesetzt wird, täglich mehrmals umgestellt werden, die vorgängigen Umstellarbeiten müssen hierzu jedes Mal ausgeführt werden, was einen erheblichen Zeitaufwand erfordert und die Verfügbarkeit der Druckmaschine einschränkt, was sich auf die Kosten auswirkt.A significantly greater effort requires the change of color in the ink fountain. Before a new color can be used, the ink fountain and the color knife must be cleaned with the appropriate effort. In particular, lying below color blades considerable effort is required. When overhead color knives the effort is slightly lower, especially when working with replaceable insert ink fountain, but the color meter must be trdtzdem swung to clean it accordingly. Such a printing press, especially if it is used for the daily production of newspapers, must be changed several times a day, the previous changeover must be done each time to do this, which requires a considerable amount of time and the availability of the press limits, which affects the cost.

Aus der DE-A 19916840 ist eine Druckmaschine bekannt bei welcher ein Farbwerk mit mehreren Farbkasten und Duktorwalze vorgesehen ist. Zur Farbübertragung ist ein umlaufendes endloses Farbband angepracht, das wahlweise an eine der Duktorwalzen anpressbar ist. Jedes Farbmesser der jeweiligen Duktorwalze muss einzeln eingestellt werden.From the DE-A 19916840 a printing machine is known in which an inking unit is provided with a plurality of ink fountain and ductor roller. For color transfer, a circulating endless ribbon is adapted, which can be pressed against one of the ductor rollers. Each color meter of the respective ductor roller must be set individually.

Die Aufgabe der vorliegenden Erfindung besteht somit darin, eine Druckmaschine mit derartigen Farbwerken auszugestalten, dass ein Umstellen von einem Produkt auf ein anderes, bei welchem unterschiedliche Farbqualitäten eingesetzt werden müssen, mit möglichst geringem Aufwand und in sehr kurzer Zeit durchgeführt werden kann.The object of the present invention is therefore to design a printing press with such inking that switching from one product to another, in which different Color qualities must be used, with the least possible effort and in a very short time can be performed.

Erfindungsgemäss erfolgt die Lösung dieser Aufgabe dadurch, dass das erste Farbmesser, das mit der ersten Duktorwalze zusammenwirkt, und das zweite Farbmesser, das mit der zweiten Duktorwalze zusammenwirkt, an einem Farbmesserbalken angebracht sind, und dass beide Farbmesser über gemeinsame Einstellmittel gleichzeitig verstellbar sind.According to the invention, the solution of this object is achieved in that the first colorimeter, which cooperates with the first ductor roller, and the second colorimeter, which cooperates with the second ductor roller, are attached to a color knife bar, and that both colorimeters are simultaneously adjustable via common adjustment means.

Durch das Vorsehen von zwei unterschiedlichen Farbzuführsystemen in einem Farbwerk einer Druckmaschine kann das Umstellen von einer Farbe bzw. Farbqualität auf die andere und somit von einer Druckproduktherstellung zur anderen sehr rasch ausgeführt werden. Die Einstellmittel müssen nicht doppelt eingesetzt werden, was einen einfachen Aufbau ermöglicht, der sich auch kostenmässig niederschlägt.By providing two different ink feed systems in an inking unit of a printing press, the changeover from one color or color quality to the other, and thus from one print product production to another, can be carried out very rapidly. The adjustment means do not have to be used twice, which allows a simple structure, which is also reflected in terms of cost.

In vorteilhafter Weise ist die Farbfilmwalze in Schwenkhebeln, die beidseits der Farbfilmwalze am Rahmen der Druckmaschine schwenkbar gehalten sind, drehbar gelagert, was ein einfaches Umstellen der Farbfilmwalze von der ersten Duktorwalze auf die zweite Duktorwalze ermöglicht.Advantageously, the ink film roller in swivel levers which are pivotally supported on both sides of the ink film roller on the frame of the printing press, rotatably mounted, which allows easy changeover of the ink film roller from the first ductor roller to the second ductor roller.

In vorteilhafter Weise ist die erste Duktorwalze und die zweite Duktorwalze über Antriebsmittel rotierend antreibbar, wobei die Antriebsmittel insbesondere aus einem einzigen Antriebsmotor und Getrieberädern gebildet sind, was einen einfachen und kostengünstigen Aufbau ermöglicht.Advantageously, the first ductor roller and the second ductor roller can be driven to rotate by means of drive means, wherein the drive means are formed in particular from a single drive motor and gear wheels, which enables a simple and cost-effective construction.

In vorteilhafter Weise ist der Schwenkbereich der Schwenkhebel durch einstellbare Anschläge begrenzt, wodurch sich in einfacher Weise eine genaue Positionierung der Farbfilmwalze bezüglich der ersten bzw. der zweiten Duktorwalze ergibt.Advantageously, the pivoting range of the pivot lever is limited by adjustable stops, which results in a simple manner, an accurate positioning of the ink fountain roller with respect to the first and the second ductor roller.

In vorteilhafter Weise sind die Einstellmittel aus zonenweise wirkenden Einstellelementen zusammengesetzt, wobei jedes Einstellelement individuell über eine Stellschraube einstellbar ist und jedes Einstellelement mit einem ersten Nocken, der auf die entsprechende Zone des ersten Farbmessers wirkt, und einem zweiten Nocken, der auf die entsprechende Zone des zweiten Farbmessers wirkt, versehen ist, was einen einfachen und kostengünstigen Aufbau ermöglicht.Advantageously, the adjusting means are composed of zone-wise adjusting elements, each adjusting element being adjustable individually by means of an adjusting screw and each adjusting element having a first cam which is in contact with the corresponding zone of the first colorimeter acts, and a second cam, which acts on the corresponding zone of the second colorimeter, is provided, which allows a simple and inexpensive construction.

In vorteilhafter Weise ist einer der beiden Nocken verstellbar. Dadurch kann dieser Nocken bezüglich des über die Einstellmittel eingestellten Nockens zusätzlich justiert werden.Advantageously, one of the two cams is adjustable. As a result, this cam can be additionally adjusted with respect to the cam set via the adjusting means.

Einen einfachen Aufbau der Farbkasten erreicht man dadurch, dass einer der beiden Farbkasten durch das entsprechende Farbmesser mit seitlichen Farbkastenwänden und die jeweilige Duktorwalze gebildet ist, und dass der andere Farbkasten als Eintauchbehälter für die entsprechende Duktorwalze ausgebildet ist.A simple construction of the ink fountain can be achieved in that one of the two ink fountain is formed by the corresponding ink knife with side ink fountain walls and the respective ductor roller, and that the other ink fountain is designed as a dip tank for the corresponding ductor roller.

Einen anderen einfachen Aufbau der Farbkasten wird dadurch erhalten, dass der erste Farbkasten durch das am Farbmesserbalken angebrachte erste Farbmesser mit seitlichen Farbkastenwänden und der ersten Duktorwalze und der zweite Farbkasten durch das am selben Farbmesserbalken angebrachte zweite Farbmesser mit seitlichen Farbkastenwänden und der zweiten Duktorwalze gebildet sind.Another simple structure of the ink fountain is obtained by the fact that the first ink fountain are formed by the colorimeter bar mounted on the first ink knife with side ink fountain walls and the first ductor roller and the second ink fountain by the same color knife bar mounted second colorimeter with side ink fountain walls and the second ductor roller.

Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, dass die Farbfilmwalze mit einer Farbzwischenwalze in Kontakt ist, welche an eine erste Farbübertragungswalze anstellbar ist, wenn die Farbfilmwalze an die erste Duktorwalze angestellt ist und welche an eine zweite Farbübertragungswalze anstellbar ist, wenn die Farbfilmwalze an die zweite Duktorwalze angestellt ist, und dass die erste Farbübertragungswalze und die zweite Farbübertragungswalze aneinander angestellt sind. Dadurch kann in einfacher Weise die Drehrichtung der Farbfilmwalze, welche je nach Anordnung der Farbkasten an den Duktorwalzen ändern kann, angepasst werden.A further advantageous embodiment of the invention is that the ink film roller is in contact with a color intermediate roller, which is engageable with a first ink transfer roller when the ink film roller is employed on the first ductor roller and which is engageable with a second ink transfer roller when the ink film roller to the second ductor roller is employed, and that the first ink transfer roller and the second ink transfer roller are set against each other. As a result, the direction of rotation of the ink film roller, which can change depending on the arrangement of the ink fountain on the ductor rollers, can be adjusted in a simple manner.

In vorteilhafter Weise ist die Farbzwischenwalze ebenfalls im Schwenkhebel, in welchem die Farbfilmwalze drehbar gelagert ist, drehbar gelagert. Dadurch kann in einfacher Weise die Farbzwischenwalze entsprechend der Farbfilmwalze umgestellt werden.Advantageously, the intermediate color roller is also in the pivot lever, in which the ink film roller is rotatably mounted, rotatable stored. As a result, the ink fountain roller can be changed in accordance with the ink fountain roller in a simple manner.

Ausführungsformen der Erfindung werden nachfolgend anhand der beiliegenden Zeichnungen beispielhaft näher erläutert.Embodiments of the invention are explained in more detail by way of example with reference to the accompanying drawings.

Es zeigt

  • Fig. 1 in schematischer Darstellung das Farbwerk eines Druckwerks einer Druckmaschine, ausgestattet mit zwei Duktorwalzen, von welchen jede separat einfärbbar ist;
  • Fig. 2 eine Schnittdarstellung durch den Farbmesserbalken mit den beiden einstellbaren Farbmessern für die beiden Duktorwalzen und die Farbbehälter gemäss Fig. 1;
  • Fig. 3 eine Teilansicht im Schnitt der beiden Duktorwalzen mit dem Antrieb und Einstellelementen zur zonenweise Einstellung der beiden Farbmesser gemäss Fig. 2; und
  • Fig. 4 in schematischer Darstellung eine weitere Ausführungsform zur Anordnung des Farbmesserbalkens mit den beiden Farbmessern bezüglich der beiden Duktorwalzen;
It shows
  • Fig. 1 a schematic representation of the inking unit of a printing unit of a printing press, equipped with two ductor rollers, each of which is separately dyeable;
  • Fig. 2 a sectional view through the color knife bar with the two adjustable color blades for the two ductor rollers and the ink container according to Fig. 1 ;
  • Fig. 3 a partial view in section of the two ductor rollers with the drive and adjustment elements for zonal adjustment of the two color meter according to Fig. 2 ; and
  • Fig. 4 a schematic representation of another embodiment of the arrangement of the color knife bar with the two ink blades with respect to the two ductor rollers;

In Fig. 1 ist ein Farbwerk 1 einer Druckeinheit einer Druckmaschine dargestellt, das in bekannter Weise zwei Farbauftragswalzen 2 und 8 umfasst, die an einen Plattenzylinder 4 angestellt sind. Eine Farbreiberwalze 5 ist in Kontakt mit diesen beiden Farbauftragswalzen 2 und 3. An diese Farbreiberwalze 5 ist eine erste Zwischenwalze 6 angestellt, die ihrerseits in Kontakt ist mit einer weiteren Farbreiberwalze 7.In Fig. 1 an inking unit 1 of a printing unit of a printing press is shown, which comprises in a known manner two inking rollers 2 and 8, which are employed on a plate cylinder 4. An inking roller 5 is in contact with these two inking rollers 2 and 3. At this ink roller 5, a first intermediate roller 6 is employed, which in turn is in contact with a further inking roller. 7

An diese weitere Farbreiberwalze 7 ist eine zweite Zwischenwalze 8 angestellt.At this other ink roller 7 a second intermediate roller 8 is employed.

In diesem Farbwerk 1 ist eine erste Duktorwalze 9 und eine zweite Duktorwalze 10 angeordnet. Die erste Duktorwalze 9 wirkt mit einem ersten Farbkasten 11 und einem ersten Farbmesser 12 zusammen, während die zweite Duktorwalze 10 mit einem zweiten Farbkasten 13 und einem zweiten Farbmesser 14 zusammenwirkt. Das erste Farbmesser 12 und das zweite Farbmesser 14 sind an einem gemeinsamen Farbmesserbalken 15 angebracht. In diesem Farbmesserbalken 15 sind Einstellmittel 16 untergebracht, mit welchen beide Farbmesser 12 und 14 zum Einstellen des Farbfilms auf der jeweiligen Duktorwalze 9 bzw. 10 eingestellt werden können, wie später im Detail noch beschrieben wird.In this inking unit 1, a first ductor roller 9 and a second ductor roller 10 is arranged. The first ductor roller 9 cooperates with a first ink fountain 11 and a first ink knife 12, while the second ink fountain roller 10 cooperates with a second ink fountain 13 and a second ink meter 14. The first colorimeter 12 and the second colorimeter 14 are attached to a common colorimeter bar 15. In this color blade bar 15 adjusting means 16 are housed, with which both colorimeters 12 and 14 for adjusting the color film on the respective ductor roller 9 and 10 can be adjusted, as will be described later in detail.

Eine Farbfilmwalze 17 ist in zwei Schwenkhebeln 18 drehbar gelagert, welche Schwenkhebel 18 in bekannter Weise beidseits der Farbfilmwalze 17 am Rahmen der Druckmaschine um eine Schwenkachse 19 schwenkbar gehalten sind. Dieser Schwenkhebel 18 ist über einen Linearantrieb 20, beispielsweise einem Pneumatikzylinder in bekannter Weise um diese Schwenkachse 19 schwenkbar, wobei die beiden Endlagen dieses Schwenkhebels 18 durch einstellbare Anschläge 21 definiert sind.A color film roller 17 is rotatably mounted in two pivoting levers 18, which pivot lever 18 are pivotally supported in a known manner on both sides of the ink film roller 17 on the frame of the printing press about a pivot axis 19. This pivot lever 18 is pivotable about this pivot axis 19 via a linear drive 20, for example a pneumatic cylinder in a known manner, wherein the two end positions of this pivot lever 18 are defined by adjustable stops 21.

Durch Verschwenken dieses Schwenkhebels 18 von der einen Endlage in die andere Endlage, die durch die Anschläge 21 bestimmt sind, lässt sich die Farbfilmwalze 17 mit der ersten Duktorwalze 9 oder mit der zweiten Duktorwalze 10 in Wirkverbindung bringen.By pivoting this pivot lever 18 from one end position to the other end position, which are determined by the stops 21, the ink film roller 17 can bring into operative connection with the first ductor roller 9 or with the second ductor roller 10.

Durch die Anordnung des ersten Farbkastens 11 und des ersten Farbmessers 12 bezüglich der ersten Duktorwalze 9 rotiert die erste Duktorwalze 9 im Gegenuhrzeigersinn. Aufgrund der Anordnung des zweiten Farbkastens 13 und des zweiten Farbmessers 14 bezüglich der zweiten Duktorwalze 10 rotiert diese zweite Duktorwalze 10 im Uhrzeigersinn. Je nachdem, mit welcher Duktorwalze 9 bzw. 10 die Farbfilmwalze 17 in Wirkverbindung steht, muss diese somit ihre Drehrichtung entsprechend ändern. Hierzu ist an den Schwenkhebeln 18 ferner eine dritte Zwischenwalze 22 drehbar gelagert, die an die Farbfilmwalze 17 angestellt ist. Durch das Verschwenken der Schwenkhebel 18 um die Schwenkachse 19 wird diese dritte Zwischenwalze 22 an die weitere Farbreiberwalze 7 oder an die zweite Zwischenwalze 8 angestellt. Dadurch wird die Drehrichtungsumkehr der Farbfilmwalze 17 und der daran angestellten dritten Zwischenwalze 22 entsprechend kompensiert. Selbstverständlich ist die dritte Zwischenwalze 22 in bekannter Weise einstellbar in den Schwenkhebeln 18 gelagert, und ist auch die zweite Zwischenwalze 8 einstellbar im Rahmen der Druckmaschine gelagert, sodass die gegenseitige gewünschte Anstellung der entsprechenden Walzen in den unterschiedlichen Betriebsarten gewährleistet ist.By arranging the first ink fountain 11 and the first ink knife 12 with respect to the first ink fountain roller 9, the first fountain roller 9 rotates counterclockwise. Due to the arrangement of the second ink fountain 13 and the second ink knife 14 with respect to the second ductor roller 10, this second ductor roller 10 rotates clockwise. Depending on which ductor roller 9 or 10 the ink film roller 17 is in operative connection, this must therefore change their direction of rotation accordingly. For this purpose, a third intermediate roller 22 is also rotatably mounted on the pivoting levers 18, which is employed on the ink fountain roller 17. By pivoting the pivot lever 18 about the pivot axis 19, this third intermediate roller 22 is employed to the further ink fountain roller 7 or to the second intermediate roller 8. As a result, the reversal of the direction of rotation of the ink film roller 17 and the third intermediate roller 22 employed thereon is compensated accordingly. Of course, the third intermediate roller 22 is mounted in a known manner adjustable in the pivoting levers 18, and is also the second intermediate roller 8 adjustably mounted in the frame of the printing press, so that the mutual desired employment of the corresponding rollers is guaranteed in the different modes.

Das in Fig. 1 dargestellte Druckwerk ist als Offsetdruckwerk ausgebildet, weshalb zusätzlich ein Feuchtwerk 54 angeordnet ist, mit welchem das Feuchtmittel, das in einer Wanne 55 untergebracht ist, über eine Tauchwalze 56 und Feuchtwerkswalzen 57 und 58 auf den Plattenzylinder 4 des Druckwerkes aufbringbar ist. Selbstverständlich ist die erfindungsgemässe Anordnung von zwei Farbzuführsystemen in einem Druckwerk nicht auf Offsetdruckwerke beschränkt, diese sind vielmehr bei anderen Druckverfahren ebenfalls in die entsprechenden Farbwerke einsetzbar.This in Fig. 1 illustrated printing unit is designed as an offset printing unit, which is why in addition a dampening unit 54 is arranged, with which the dampening solution, which is housed in a trough 55, via a Dipping roller 56 and dampening rollers 57 and 58 can be applied to the plate cylinder 4 of the printing unit. Of course, the inventive arrangement of two Farbzuführsystemen in a printing unit is not limited to offset printing, but these are also used in other printing processes also in the corresponding inking.

Wie aus Fig. 2 ersichtlich ist, lässt sich der Farbmesserbalken 15 mit dem ersten Farbmesser 12 und dem zweiten Farbmesser 14 beispielsweise zur Wartung um den Schwenkpunkt 23 von der ersten Duktorwalze 9 und der zweiten Duktorwalze 10 abschwenken. Im Farbmesserbalken 15 untergebracht sind die die Einstellmittel 16 für die beiden Farbmesser 12 und 14, die aus mehreren nebeneinander angeordneten Einstellelementen 24 versehen sind. Jedes dieser Einstellelemente 24 umfasst eine Stellschraube 25, bestehend aus einer drehbar im Messerbalken 15 gelagerten Gewindehülse 26, die mit einem entsprechenden Gewindestift 27 zusammenwirkt, der über eine Schubstange 28 mit einem ersten Nocken 29 und einem zweiten Nocken 30 verbunden ist.How out Fig. 2 can be seen, the color knife bar 15 with the first colorimeter 12 and the second colorimeter 14, for example, for maintenance around the pivot point 23 of the first ductor roller 9 and the second ductor roller 10 pivot. Housed in the ink knife bar 15 are the adjusting means 16 for the two ink knives 12 and 14, which are provided of a plurality of juxtaposed adjusting elements 24. Each of these adjusting elements 24 comprises an adjusting screw 25, consisting of a rotatably mounted in the cutter bar 15 threaded sleeve 26 which cooperates with a corresponding threaded pin 27 which is connected via a push rod 28 with a first cam 29 and a second cam 30.

Durch Verdrehen der Gewindehülse 26, was über einen Handgriff 31 oder über einen Getriebemotor 32 erfolgen kann, wozu entsprechende Zahnräder 33 vorgesehen sind, lässt sich die Schubstange 28 und damit der erste Nocken 29 und der zweite Nocken 30 axial verschieben. Die beiden Nocken 29 und 30 verstellen dadurch jeweils eine Zone der beiden Farbmesser 12 und 14 gleichzeitig. Um die genaue Position der einzelnen Einstellelemente 24 feststellen zu können, ist jedes dieser Einstellelemente 24 mit einem Absolutwertgeber 34 ausgestattet, der über ein weiteres Zahnrad 35 mit den Zahnrädern 33 verbunden ist.By turning the threaded sleeve 26, which can be done via a handle 31 or a gear motor 32, for which corresponding gears 33 are provided, the push rod 28 and thus the first cam 29 and the second cam 30 can be moved axially. The two cams 29 and 30 thereby adjust one zone of the two colorimeters 12 and 14 simultaneously. To be able to determine the exact position of the individual adjusting elements 24, each of these adjusting elements 24 is equipped with an absolute encoder 34, which is connected via a further gear 35 with the gears 33.

In bekannter Weise sind die beiden Farbmesser 12 und 14 mit einem separaten Schliessmechanismus 36 ausgestattet, mit welchem ermöglicht wird, das jeweilige Farbmesser 12 bzw. 14, unabhängig von der über die Einstellmittel 16 eingestellten Position der einzelnen Zonen, in die geschlossene Stellung zu bringen.In known manner, the two ink knives 12 and 14 are equipped with a separate closing mechanism 36, with which it is possible to bring the respective ink knife 12 and 14, regardless of the adjusted via the adjusting means 16 position of the individual zones in the closed position.

Bei der in dieser Fig. 2 dargestellten Anordnung bildet die erste Duktorwalze 9 zusammen mit dem ersten Farbmesser 12 und dem oberen Bereich des Farbmesserbalkens 15 mit den nicht dargestellten Farbkastenseitenwänden den ersten Farbkasten 11, in welchem sich die Farbe für das eine Farbzuführsystem für die Druckeinheit befindet. Das andere Farbzuführsystem wird durch den zweiten Farbkasten 13 gebildet, in welchem die zweite Duktorwalze 10 eingetaucht ist und welches entsprechend mit einer anderen Farbe gefüllt werden kann. Über das erste Farbmesser 12 bzw. das zweite Farbmesser 14 wird auf der ersten Duktorwalze 9 oder der zweiten Duktorwalze 10 der gewünschte zonenweise einstellbare Farbfilm geschaffen, dieser Farbfilm wird auf die Farbfilmwalze 17 übertragen, die, wie zu Fig. 1 beschrieben worden ist, an die erste Duktorwalze 9 oder an die zweite Duktorwalze 10 angestellt werden kann. Die Duktorwalzen 9 bzw. 10 werden hierbei mit geringer Drehzahl angetrieben, die Farbfilmwalze 17 hat eine Umfangsgeschwindigkeit, die etwa der Druckgeschwindigkeit entspricht, und ist somit um ein Vielfaches höher als diejenige der Duktorwalzen 9 oder 10. Die Farbfilmwalze 17 wird deshalb derart an die jeweilige Duktorwalze 9 oder 10 angestellt, dass kein direkter Kontakt zwischen den beiden Walzen auftritt, vielmehr besteht ein Spalt, der so gross ist, dass der Farbfilm auf der jeweiligen Duktorwalze 9 oder 10 durch die Farbfilmwalze 17 aufgenommen und an die weiteren Farbwerkswalzen übertragen werden kann.In the case of this Fig. 2 The arrangement shown forms the first ink fountain roller 9 together with the first ink knife 12 and the upper portion of the ink knife bar 15 with the ink fountain side walls, not shown, the first ink fountain 11, in which there is the color for the one Farbzuführsystem for the printing unit. The other ink supply system is formed by the second ink fountain 13 in which the second fountain roller 10 is immersed and which can be filled with another color accordingly. On the first ink fountain roller 9 or the second ink fountain roller 10 of the first ink jet 12 or the second ink fountain roller 10, the desired zonewise adjustable color film is created, this ink film is transferred to the ink fountain roller 17, which, as to Fig. 1 has been described, can be made to the first ductor roller 9 or to the second ductor roller 10. The ink fountain rollers 9 and 10 are driven at low speed, the ink film roller 17 has a peripheral speed which corresponds approximately to the printing speed, and is thus many times higher than that of the ductor rollers 9 or 10. The ink film roller 17 is therefore in such a way Ductor roller 9 or 10 employed that no direct contact between the two rollers occurs, but there is a gap which is so large that the ink film on the respective ductor roller 9 or 10 can be picked up by the ink fountain roller 17 and transferred to the other inking unit rollers.

In Fig. 3 ist die eine Seite der Lagerung der ersten Duktorwalze 9 und der zweiten Duktorwalze 10 im Rahmen 37 der Druckmaschine dargestellt, die Achsen 38 der beiden Duktorwalzen 9 und 10 sind hierbei in Wälzlagern 39 gehalten, welche in entsprechende Ausnehmungen am Rahmen 37 eingesetzt sind. Auf die beiden Achsen 38 der Duktorwalzen 9 und 10 ist jeweils ein Stirnzahnrad 40 aufgesetzt, die miteinander kämmen. Eines dieser beiden Stirnzahnräder 40 kämmt mit einem Antriebsrad 41, das an einem drehzahlregulierbaren Getriebemotor 42 angebracht ist, über welchen die beiden Duktorwalzen 9 und 10 antreibbar sind.In Fig. 3 is the one side of the storage of the first ductor roller 9 and the second ductor roller 10 shown in the frame 37 of the printing press, the axes 38 of the two ductor rollers 9 and 10 are in this case held in bearings 39, which are inserted into corresponding recesses on the frame 37. On the two axes 38 of the ductor rollers 9 and 10 each have a spur gear 40 is placed, which mesh with each other. One of these two spur gears 40 meshes with a drive wheel 41, which is attached to a variable speed geared motor 42, via which the two ductor rollers 9 and 10 are driven.

Zwischen den beiden Duktorwalzen 9 und 10 eingesetzt sind die Einstellmittel 16, die aus mehreren nebeneinander angeordneten Einstellelementen 24 bestehen. Wie bereits erwähnt worden ist, ist das erste Farbmesser 12 und das zweite Farbmesser 14 über diese Einstellelemente 24 zonenweise einstellbar, jedes der Einstellmittel weist einen ersten Nocken 29 und einen zweiten Nocken 30 auf, der erste Nocken 29 ist jeweils verdrehfest im Farbmesserbalken 15 längsverschiebbar geführt, der zweite Nocken 30 ist über einen Gewindestift 43 und einer entsprechenden Sicherungsmutter 44 fein einstellbar im ersten Nocken 29 befestigt.Inserted between the two ductor rollers 9 and 10 are the adjusting means 16, which consist of a plurality of juxtaposed adjusting elements 24. As already mentioned, the first one is Color meter 12 and the second colorimeter 14 on these adjustment 24 zones adjustable, each of the adjusting means has a first cam 29 and a second cam 30, the first cam 29 is rotationally guided in the ink knife bar 15 longitudinally displaceable, the second cam 30 is a threaded pin 43 and a corresponding lock nut 44 finely adjustable in the first cam 29 attached.

In Fig. 4 ist eine weitere Ausführungsform der erfindungsgemässen Einrichtung dargestellt. Hierbei ist zwischen der ersten Duktorwalze 9 und der zweiten Duktorwalze 10 symmetrisch der Farbmesserbalken 15 eingesetzt, an welchen das erste Farbmesser 12, das mit der ersten Duktorwalze 9 zusammenwirkt, und das zweite Farbmesser 14, das mit der zweiten Duktorwalze 10 zusammenwirkt, angeordnet sind. Die Einstellmittel zum Einstellen des ersten Farbmessers 12 und des zweiten Farbmessers 14 sind im Farbmesserbalken 15 angebracht, bestehend wiederum aus mehreren hintereinander angeordneten Einstellelementen 24, die jeweils einen ersten Nocken 29 und einen zweiten Nocken 30 aufweisen, über welche das erste Farbmesser 12 und das zweite Farbmesser 14 zonenweise einstellbar sind, entsprechend der Einstellbarkeit, wie sie zum vorgängig beschriebenen Ausführungsbeispiel dargelegt worden ist. Der Farbmesserbalken 15 bildet zusammen mit dem ersten Farbmesser 12 und der ersten Duktorwalze 9 den ersten Farbkasten 11 und zusammen mit dem zweiten Farbmesser 14 und der zweiten Duktorwalze 2 den zweiten Farbkasten 13.In Fig. 4 a further embodiment of the inventive device is shown. Here, between the first ductor roller 9 and the second ductor roller 10 is used symmetrically the ink knife bar 15, to which the first ink knife 12, which cooperates with the first ductor roller 9, and the second color knife 14, which cooperates with the second ductor roller 10 are arranged. The adjusting means for adjusting the first colorimeter 12 and the second colorimeter 14 are mounted in the ink knife bar 15, again consisting of a plurality of adjusting elements 24 arranged one behind the other, each having a first cam 29 and a second cam 30, via which the first colorimeter 12 and the second Color meter 14 are adjustable in zones, according to the adjustability, as has been set out to the previously described embodiment. The ink blade bar 15 forms, together with the first ink knife 12 and the first ink fountain roller 9, the first ink fountain 11 and, together with the second ink knife 14 and the second fountain roller 2, the second ink fountain 13.

Die Farbfilmwalze 17 ist wiederum auf einem Schwenkhebel 18 drehbar gelagert, der um die Schwenkachse 19 schwenkbar ist. Durch Verschwenken dieses Schwenkhebels 18 ist die Farbfilmwalze 17 an die erste Duktorwalze 9 oder an die zweite Duktorwalze 10, wie vorgängig beschrieben worden ist, anstellbar. Die Verschwenkung des Schwenkhebels 18 wird wiederum über einen Linearantrieb 20 ausgeführt. Ebenfalls am Schwenkhebel 18 angeordnet ist die dritte Zwischenwalze 22, die an die Farbfilmwalze 17 angestellt ist. Beim Verschwenken des Schwenkhebels 18 wird diese dritte Zwischenwalze entweder an die weitere Farbreiberwalze 7 oder an die zweite Zwischenwalze 8 angestellt, wodurch die Drehdichtungsumkehr ausgeglichen wird und die weiteren Farbwerkwalzen, wie dies in Fig. 1 dargesteilltilst, immer in der richtigen Richtung drehen.The ink film roller 17 is in turn rotatably mounted on a pivot lever 18 which is pivotable about the pivot axis 19. By pivoting this pivot lever 18, the ink fountain roller 17 to the first ductor roller 9 or to the second ductor roller 10, as previously described, can be adjusted. The pivoting of the pivot lever 18 is again carried out via a linear drive 20. Also arranged on the pivot lever 18 is the third intermediate roller 22, which is employed on the ink film roller 17. When pivoting the pivot lever 18, this third intermediate roller is employed either to the other ink roller 7 or to the second intermediate roller 8, whereby the rotational seal reversal compensated and the other inking rollers, as in Fig. 1 show, always turn in the right direction.

In bekannter, nicht dargestellter Weise können die vorgängig beschriebenen Farbkasten mit einer automatischen Farbzuführung ausgestattet sein, die für eine kontinuierliche Auffüllung der Farbkasten sorgt. Zusätzlich kann noch eine Niveauregelung angebracht sein, so dass die Farbkasten auch während des Druckvorgangs immer optimal aufgefüllt sind.In a known, not shown manner, the color box described above can be equipped with an automatic ink supply, which ensures a continuous filling of the ink fountain. In addition, a level control can be attached, so that the ink fountain are always optimally filled during the printing process.

Wenn nun die Druckmaschine am Ende eines Produktionsvorgangs mit einer ersten Farbe auf eine Produktion mit einer zweiten Farbe umgestellt werden soll, muss das Farbwerk gereinigt werden. Wie in Fig. 1 schematisch dargestellt ist, ist hierzu im Farbwerk eine Wascheinrichtung 49 angebracht, bestehend im wesentlichen aus einer Aufsprüheinrichtung 50 zum Aufsprühen des Reinigungsmittels auf die Walzen und einer an eine der Walzen anstellbaren Abrakeleinrichtung 51 mit einer Rakel 52 und einem Auffangbecken 53. Beim Ausführen des Reinigungsvorgangs werden alle aneinander angestellten Farbwerkswalzen gereinigt, inklusive der Farbfilmwalze 17. Die zeitaufwändigen Reinigungsvorgänge der Duktorwalzen, der Farbkasten und der Farbmesser, welche bei Farbwerken mit nur einem Farbzuführsystem ausgeführt werden müssten, entfallen für diese Umstellung beim erfindungsgemässen Farbwerk mit zwei Farbzuführsystemen. Durch die vorgängig beschriebene Umstellmöglichkeit des Schwenkhebels 18 über den Linearantrieb 20 wird die Farbfilmwalze an die Duktorwalze des Farbkastens mit der zweiten Farbe angestellt, die Druckmaschine kann sehr rasch zur Herstellung eines Druckproduktes mit der zweiten Farbe wieder eingesetzt werden.If, at the end of a production process, the press is to be converted to a second color with a first color, the inking unit must be cleaned. As in Fig. 1 is shown schematically, for this purpose, a washing device 49 is mounted in the inking unit, consisting essentially of a spraying device 50 for spraying the cleaning agent on the rollers and an engageable on one of the rollers Abrakeleinrichtung 51 with a doctor blade 52 and a catch basin 53. When performing the cleaning process cleaned all inking rollers employed together, including the ink film roller 17. The time-consuming cleaning operations of ductor rollers, the ink fountain and the color meter, which would have to be executed in inking with only one Farbzuführsystem omitted for this conversion in the inventive inking unit with two Farbzuführsystemen. Due to the previously described Umstellmöglichkeit the pivot lever 18 via the linear drive 20, the ink film roller is employed on the ink fountain roller of the ink fountain with the second color, the printing press can be used very quickly to produce a printed product with the second color again.

Zusätzlich besteht auch die Möglichkeit, die während eines Druckvorgangs nicht im Einsatz stehenden Farbkasten und Duktorwelzen vorgängig für einen neuen Druckvorgang vorzubereiten, was eine weitere Zeitersparnis zur Folge hat und die Verfügbarkeit der Druckmaschine weiter erhöht.In addition, it is also possible to prepare the color box and ducts not used during a printing operation in advance for a new printing process, which has a further time saving result and further increases the availability of the printing press.

Mit diesen vorgängig beschriebenen erfindungsgemässen Lösungen können Druckwerke erhalten werden, bei welchen eine Umstellung von einer Farbe auf eine andere mit geringem Zeitaufwand ausgeführt werden kann.With these previously described inventive solutions printing units can be obtained, in which a change from one color to another with little time can be performed.

Claims (11)

  1. Printing press for printing printed products such as newspapers, magazines and journals, comprising at least one printing unit with a printing cylinder, a plate cylinder (4) and an inking system (1), consisting of a multiplicity of ink unit rollers and an ink film roller (17), which is able to be selectively engaged on at least one first ductor roller (9) or on a second ductor roller (10), which first ductor roller (9) co-operates with a first ink duct (11) and a first ink blade (12) and which second ductor roller (10) co-operates with a second ink duct (13) and a second ink blade (14), the first ink blade (12) and the second ink blade (14) being provided with adjusting means (16) for zonewise adjusting of the ink film on the respective ductor roller (9, 10), and a device (49) for washing of the rollers, characterised in that the first ink blade (12), which co-operates with the first ductor roller (9), and the second ink blade (14), which co-operates with the second ductor roller (10), are installed on a ink blade bar (15), and in that both ink blades (12, 14) are adjustable simultaneously via joint adjusting means (16).
  2. Printing press according to claim 1, characterised in that the ink film roller (17) is pivotably borne in pivot levers (18), which are pivotably held on the frame (37) of the printing press on both sides of the ink film roller (17).
  3. Printing press according to claim 1 or 2, characterised in that the first ductor roller (9) and the second ductor roller (10) are drivable in a rotating way via drive means (40, 41, 42).
  4. Printing press according to claim 3, characterised in that the drive means are composed of a drive motor (42) and gear wheels (40, 41).
  5. Printing press according to one of the claims 2 to 4, characterised in that the pivot range of the pivot levers (18) is limited by adjustable stops (21).
  6. Printing press according to one of the claims 1 to 5, characterised in that the adjusting means (16) are made up of adjusting elements (24) acting zonewise, in that each adjustment element (24) is individually adjustable via an adjusting screw (25) and in that each adjustment element (24) is provided with a first protrusion (29), which acts on the corresponding zone of the first ink blade (12), and a second protrusion (30), which acts on the corresponding zone of the second ink blade (14).
  7. Printing press according to claim 6, characterised in that one of the two cams (29, 30) is adjustable.
  8. Printing press according to one of the claims 1 to 7, characterised in that one ink duct (11) of the two ink ducts (11, 13) is formed by the corresponding ink blade (12), lateral ink duct walls and the first ductor roller (9), and in that the other ink duct (13) is designed as dip tank for the corresponding second ductor roller (10).
  9. Printing press according to one of the claims 1 to 7, characterised in that the first ink duct (11) is formed by the first ink blade (12), installed on the ink blade bar (15), with lateral ink duct walls and the first ductor roller (9), and the second ink duct (13) is formed by the second ink blade (14), installed on the same ink blade bar (15), with lateral ink duct walls and the second ductor roller (10).
  10. Printing press according to one of the claims 1 to 9, characterised in that the ink film roller (17) is in contact with an interim ink roller (22), which is able to be engaged on a first ink transfer roller (7), when the ink film roller (17) is engaged on the first ductor roller (9), and which is able to be engaged on a second ink transfer roller (8) when the ink film roller (17) is engaged on the second ductor roller (10), and in that the first ink transfer roller (7) and the second ink transfer roller (8) are engaged abutting one another.
  11. Printing press according to claim 10, characterised in that the interim ink roller (22) is also rotatably borne in the pivot lever (18), in which the ink film roller (17) is rotatably borne.
EP20090170734 2009-09-18 2009-09-18 Printing press for printing printed products Not-in-force EP2298554B1 (en)

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US1450270A (en) * 1920-03-12 1923-04-03 Goss Printing Press Co Ltd Inking mechanism
DE19916840A1 (en) 1998-04-22 1999-10-28 Heidelberger Druckmasch Ag Appliance for changing ink in printer, with several ink receptacles
FR2778364B1 (en) * 1998-05-11 2000-07-28 Jean Claude Sarda INKS FOR PRINTING PRESSES HAVING A SET OF MEANS FOR TRANSFORMING THE OPERATING MODES AND CLEANING OF TRADITIONAL INKS

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