EP0564936B1 - Anilox-offset printing unit with short inking system - Google Patents

Anilox-offset printing unit with short inking system Download PDF

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Publication number
EP0564936B1
EP0564936B1 EP93105094A EP93105094A EP0564936B1 EP 0564936 B1 EP0564936 B1 EP 0564936B1 EP 93105094 A EP93105094 A EP 93105094A EP 93105094 A EP93105094 A EP 93105094A EP 0564936 B1 EP0564936 B1 EP 0564936B1
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EP
European Patent Office
Prior art keywords
printing unit
offset printing
roller
unit according
anilox
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP93105094A
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German (de)
French (fr)
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EP0564936A1 (en
Inventor
Ingo Köbler
Hans Mamberer
Anton Hamm
Thomas Dr. John
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Manroland AG
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MAN Roland Druckmaschinen AG
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Publication of EP0564936A1 publication Critical patent/EP0564936A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/304—Arrangements for inking roller bearings, forks or supports
    • B41F31/305—Eccentric bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/70—Forming the printing surface directly on the form cylinder

Definitions

  • the invention relates to an anilox offset printing unit with a short inking unit, which has, between the side walls, a doctor blade that can be dipped, immersed in an ink pan, an inking roller and a plate cylinder that inked a blanket cylinder, the plate cylinder interacting with a dampening unit.
  • Anilox offset short inking units of the generic type do not have zone screws, but instead have a built-in, scrapable anilox roller, so that the amount of ink to be transferred can no longer be influenced directly.
  • the amount of ink to be transferred depends primarily on the type of screen of the anilox roller and on the physical properties of the ink used.
  • the impression width from the inking roller to the anilox roller also determines the ink transfer, so that ink metering can be influenced by the width of the contact zones of the rollers.
  • the width of the impression from the inking roller to the plate cylinder also influences the emulsification behavior of the ink. The larger the width of the imprint, the greater the constraining forces, the more dampening solution is emulsified into the ink and the greater the need for dampening solution to be able to print sound-free.
  • the rise in temperature in the machine also results in an increase in the color temperature, which causes the physical Change color properties.
  • the tendency to emulsify increases, which is why the mechanical influencing variables of the emulsion formation, that is to say, above all, the constraining forces in the nip between the inking roller and the plate cylinder must be kept small.
  • the printing unit shown schematically in Fig. 1 comprises a short inking unit with an anilox roller 1, against which an ink pan 2 with a doctor unit 3 can be set and an inking roller 4.
  • the ink removed from the ink fountain 2 with the anilox roller 1 is first applied to the inking roller 4 and transferred from this to a plate cylinder 5, the anilox roller 1 being doctored off by means of the doctor unit 3.
  • a dampening roller 6 of a dampening unit 7 is employed on the plate cylinder 5, a dampening roller 6 of a dampening unit 7 is employed.
  • the plate cylinder 5 transfers the ink to a blanket cylinder 8 which is in contact with another cylinder 9.
  • the cylinder 9 is either an impression cylinder or the blanket cylinder of another inking unit.
  • the amount of ink transferred during the ink transfer from one roller 1 to another roller 4 or to the plate cylinder 5 essentially depends on the impression width b2 of the rollers 1 and 4 in contact.
  • the impression width b1 between roller 4 and plate cylinder 5, on the other hand, has a significant influence on the amount of dampening solution emulsified into the ink, which is split back into the inking unit.
  • Fig. 2 shows an embodiment of an adjusting device for changing the spacing of the inking roller 4 with respect to the axes of the anilox roller 1 and the plate cylinder 5.
  • the inking roller 4 is rotatably mounted on both sides by means of two eccentric bushes 10 and 13 in the side walls about an axis 12.
  • the inner eccentric bushing 10 is rotatably mounted in an outer eccentric bushing 13 via the surface 10a.
  • the inner eccentric bushing 10 has a clamping ring 11 on the side, which has a shoulder 14 which is connected to a threaded part 15 by means of a motor-driven part adjustable, fixed to the side wall stop 16 cooperates and carries a second projection 17 which is articulated with a piston 18 of a rotatably mounted on / off cylinder 19.
  • the outer eccentric bushing 13 is connected to an adjustment device 22 by means of an extension 20 via an articulated pull rod 21.
  • the pull rod 21 can be moved back and forth in a known manner by means of a threaded part 23 and a worm wheel in an advantageous manner (FIG. 3).
  • the stop 16 for the inner eccentric bushing 10 and the adjusting device 22 for the outer eccentric bushing 13 enable a finely tuned change in the impression widths b1, b2 of the inking roller 4 to the anilox roller 1 and / or to the plate cylinder 5.
  • the gear element 15 of the stop 16 is designed as a bolt which interacts in a known manner with an adjusting spindle 24 (FIG. 3), so that the adjustable stop 16 can pivot the inner eccentric bush 10 to a small extent.
  • the on / off cylinder 19 presses the inner eccentric bush 10 against the stop 16, on the other hand the stop 16, since it can exert a greater force than the adjusting cylinder 19 by means of its adjustable gear element 15, can pivot the inner eccentric bush 10 against the adjusting cylinder 19. This ensures that the inking roller 4 is always firmly seated in its storage.
  • Both the adjusting device 22 and the stop 16 are connected to a circuit arrangement, as shown in FIG. 3.
  • the Circuit arrangement generally has a transducer 25 and a setpoint generator 26, both of which are connected to a comparison element 27.
  • a transmission element 28 with an adjustable timing so that the timing of the regulating device can be adapted to the timing of the controlled system, and a signal amplifier 29, the circuit arrangement is in each case with a stepper motor 30 of the stop 16 of the inner eccentric bush 10 and a stepper motor 31 of the adjusting element 22 the outer eccentric bush 13 connected. Both stepper motors 30, 31 are each provided with a presetting wheel 32, 33.
  • the transducer 25 is coupled to a measuring element 34.
  • the invention therefore achieves the object by regulating the impression widths b1 and b2.
  • a basic setting which can also be changed by the printer during printing
  • the print widths are automatically readjusted in the sense of keeping the print results constant based on this basic setting.
  • the measurement variables that can be used for the control are, on the one hand, the color density, and, on the other hand, the parameters that detect, cause or correlate changes in the print width. These parameters are the line forces or bearing forces associated with the impression widths that are difficult to measure "on line" and, above all, the temperatures in the roller bodies and side walls causing the changes.
  • the measuring element 34 can thus be a densitometer that measures the ink density either on-line or off-line, or a strain gauge that measures the bearing force of the employed inking roller 4, or scanning wheels that scan the cylinder diameter of the inking roller 4 on-line.
  • the preferred embodiment of the measuring element 34 for the exemplary embodiment since the cheapest, is a thermo-sensitive element.
  • the temperature is recorded at several points. On the one hand the roll temperatures and on the other hand the side wall temperatures are recorded.
  • thermocouples which are either integrated in the rollers 1, 4, 5 or finger protection spindles (not shown in the figures) which are accommodated near the roller surfaces in the roller gap between the anilox roller 1 and the inking roller 4, or the inking roller 4 and plate cylinder 5 , but also, if present, can be used in a cooling system, the temperatures of the coolant being fed in and out being measured. Depending on the design of the cooling circuit, the flow rate of the coolant can also be included in the control as a measurement parameter.
  • the side wall temperatures can be detected by means of thermocouples installed thereon or within the side walls.
  • thermo-sensitive elements If a temperature change is ascertained by means of the thermo-sensitive elements, then electrical signals are passed on to the comparison element 27 by way of corresponding voltage changes in the thermocouples 34 via the transducer 25.
  • the comparison element 27 the correspondingly shaped measured value X is compared with the desired color density value w that can be predetermined from the setpoint generator 26, and the difference X w is passed on to the two stepper motors 30, 31 in the form of a voltage value via the transmission element 28 and the signal amplifier.
  • a transducer 25 can be dispensed with.
  • the amount of ink can be regulated by changing the imprint width b2 of the inking roller 4 to the anilox roller 1 by changing the axis distance a2
  • the amount of moisture emulsified in the ink can be regulated by changing the imprint width b1 of the inking roller 4 to the plate cylinder 5 by changing the axis distance a1.
  • the impression widths b1, b2 are preset by means of the on / off cylinder 19 and the presetting wheels 32, 33 at 20 ° C.
  • the setpoint generator 26 can deliver a constant value w, which can be changed by desired values in the course of the printing process, or the setpoint w follows a temperature-dependent run-up curve determined by measurements.
  • the two eccentric bushes 10, 13 are moved in accordance with a non-linear function. So there are always two adjustments that are not linearly related.
  • the double eccentric bearing has two degrees of freedom.
  • the double eccentric bearing 10, 13 with its adjusting devices 16, 19, 22 is identical on both sides of the inking roller 4.
  • An axially minimal inclination of the inking roller 4 in relation to the anilox roller 1 and the plate cylinder 5 is possible by different settings in order to be able to compensate for possible differences in ink density across the width of the inking roller 4.

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

Description

Die Erfindung betrifft eine Anilox-Offset-Druckeinheit mit einem Kurzfarbwerk, das zwischen Seitenwänden gelagert eine abrakelbare, in eine Farbwanne eintauchbare Rasterwalze, eine Farbauftragwalze und einen einen Gummituchzylinder einfärbenden Plattenzylinder aufweist, wobei der Plattenzylinder mit einem Feuchtwerk zusammenwirkt.The invention relates to an anilox offset printing unit with a short inking unit, which has, between the side walls, a doctor blade that can be dipped, immersed in an ink pan, an inking roller and a plate cylinder that inked a blanket cylinder, the plate cylinder interacting with a dampening unit.

Anilox-Offset-Kurzfarbwerke der gattungsbildenden Art weisen keine Zonenschrauben, sondern eine fest eingebaute, abrakelbare Rasterwalze auf, so daß die zu übertragende Farbmenge nicht mehr direkt beeinflußbar ist. Die zu übertragende Farbmenge ist in erster Linie von der Art des Rasters der Rasterwalze, sowie von den physikalischen Eigenschaften der verwendeten Farbe abhängig.Anilox offset short inking units of the generic type do not have zone screws, but instead have a built-in, scrapable anilox roller, so that the amount of ink to be transferred can no longer be influenced directly. The amount of ink to be transferred depends primarily on the type of screen of the anilox roller and on the physical properties of the ink used.

Versuche haben gezeigt, daß die Abdruckbreite von der Farbauftragwalze zur Rasterwalze ebenfalls die Farbübertragung bestimmt, so daß eine Farbdosierung durch die Breite der Berührungszonen der Walzen beeinflußbar werden kann. Weiter beeinflußt die Abdruckbreite von Farbauftragwalze zum Plattenzylinder das Emulgierverhalten der Farbe. Je größer die Abdruckbreite, um so größer sind die Zwangskräfte, um so mehr Feuchtmittel wird in die Farbe einemulgiert und um so größer ist der Feuchtmittelbedarf, um tonfrei drucken zu können.Experiments have shown that the impression width from the inking roller to the anilox roller also determines the ink transfer, so that ink metering can be influenced by the width of the contact zones of the rollers. The width of the impression from the inking roller to the plate cylinder also influences the emulsification behavior of the ink. The larger the width of the imprint, the greater the constraining forces, the more dampening solution is emulsified into the ink and the greater the need for dampening solution to be able to print sound-free.

Mit zunehmender Laufzeit der Maschine führt der Temperaturanstieg, der u.a. von der Walkarbeit der Walzen des Farbwerks herrührt, zu Wärmeausdehnungen der Maschine. Die Abdruckbreiten der Farbauftragwalze zum Plattenzylinder und zur Rasterwalze ändern sich dadurch und weichen von den eingestellten Sollwerten ab.With increasing machine running time, the temperature rise, which i.a. from the flexing work of the rollers of the inking unit, to the thermal expansion of the machine. The print widths of the inking roller to the plate cylinder and anilox roller change as a result and deviate from the set values.

Der Temperaturanstieg in der Maschine hat zudem eine Erhöhung der Farbtemperatur zur Folge, wodurch sich die physikalischen Farbeigenschaften ändern. U.a. nimmt die Emulgierneigung zu, weswegen die mechanischen Einflußgrößen der Emulsionsbildung, also vor allem die Zwangskräfte im Walzenspalt zwischen Farbauftragwalze und Plattenzylinder klein gehalten werden müssen.The rise in temperature in the machine also results in an increase in the color temperature, which causes the physical Change color properties. Among other things, the tendency to emulsify increases, which is why the mechanical influencing variables of the emulsion formation, that is to say, above all, the constraining forces in the nip between the inking roller and the plate cylinder must be kept small.

Aus der Patentschrift GB-PS 620 148, die allgemein ein Farbwerk einer Druckmaschine behandelt, ist das Problem der durch Temperaturanstieg bedingten Beeinflussung der Farbeigenschaften bekannt. Zur Berücksichtigung dieser Einflußgröße wird in dieser Schrift vorgeschlagen, den Spalt zwischen einer Farbkastenwalze und der Farbabnahmewalze entsprechend zu ändern. Die Abstandsänderung erfolgt über eine exzentrische Lagerung der Farbabnahmewalze. Da die Ergebnisse einer solchen Nachregulierung nur während des Produktionsablaufs kontrolliert werden können, sind Farbschwankungen auf dem Druckträger nahezu unvermeidlich. Außerdem ist die Berücksichtigung der Feuchtmittelzufuhr bei veränderter Farbeigenschaft nicht vorgesehen, da von einer Farbdichteregelung durch Abdruckbreitenänderung unabhängig von der Temperatur nicht ausgegangen wird. Die vorgeschlagene Verstellmöglichkeit bietet keine Lösung dafür, nun gezielt die Abdruckbreite der Farbauftragwalze zur Rasterwalze und/oder der Farbauftragwalze zum Plattenzylinder zu verändern.From the patent specification GB-PS 620 148, which generally deals with an inking unit of a printing press, the problem of influencing the color properties due to temperature rise is known. In order to take this influencing variable into account, it is proposed in this document to change the gap between an ink fountain roller and the ink removal roller accordingly. The distance is changed via an eccentric bearing of the ink take-off roller. Since the results of such readjustment can only be checked during the production process, color fluctuations on the print carrier are almost inevitable. In addition, it is not intended to take the dampening solution supply into account when the color properties change, since it is not assumed that the ink density will be controlled by changing the print width regardless of the temperature. The proposed adjustment option does not offer a solution for specifically changing the printing width of the inking roller to the anilox roller and / or the inking roller to the plate cylinder.

Hiervon ausgehend ist es die Aufgabe der Erfindung, bei einer Anilox-Offset-Druckeinheit ein Kurzfarbwerk zu schaffen, das eine zylinderbreite Beeinflussung der Farbmenge zuläßt, die gewünschte Farbdichte über die gesamte Auflage konstant hält und die Emulsionsbildung behindert.Proceeding from this, it is the object of the invention to provide a short inking unit in an anilox offset printing unit, which permits a cylinder-wide influencing of the ink quantity, keeps the desired ink density constant over the entire print run and hinders the formation of emulsions.

Die Aufgabe wird durch die Anwendung der Merkmale des kennzeichnenden Teils im Anspruch 1 gelöst. Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen. Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand der Zeichnung beschrieben. Die Zeichnung zeigt schematisch:

Fig. 1
Eine Gesamtansicht einer Anilox-Offset-Druckeinheit;
Fig. 2
die Stelleinrichtung zur Achsenabstandsänderung der Farbauftragswalze zum Plattenzylinder und/oder der Farbauftragwalze zur Rasterwalze;
Fig. 3
die Schaltunganordnung für die Stelleinrichtung.
The object is achieved by applying the features of the characterizing part in claim 1. Further developments of the invention result from the subclaims. An embodiment of the invention is described below with reference to the drawing. The drawing shows schematically:
Fig. 1
An overall view of an anilox offset printing unit;
Fig. 2
the adjusting device for changing the distance between the axes of the inking roller to the plate cylinder and / or the inking roller to the anilox roller;
Fig. 3
the circuit arrangement for the actuator.

Die in Fig. 1 schematisch dargestellte Druckeinheit umfaßt ein Kurzfarbwerk mit einer Rasterwalze 1, an die eine Farbwanne 2 mit einer Rakeleinheit 3 anstellbar ist und einer Farbauftragwalze 4. Die mit der Rasterwalze 1 aus dem Farbkasten 2 entnommene Farbe wird zunächst auf die Farbauftragwalze 4 und von dieser auf einen Plattenzylinder 5 übertragen, wobei die Rasterwalze 1 mittels der Rakeleinheit 3 abgerakelt wird. An den Plattenzylinder 5 ist eine Feuchtwerkwalze 6 eines Feuchtwerkes 7 angestellt. Der Plattenzylinder 5 gibt die Farbe an einen Gummituchzylinder 8, der mit einem weiteren Zylinder 9 in Kontakt steht, weiter. Der Zylinder 9 ist entweder ein Gegendruckzylinder oder der Gummituchzylinder eines weiteren Farbwerks. Die bei der Farbübertragung von einer Walze 1 auf eine andere Walze 4 bzw. auf den Plattenzylinder 5 übertragene Farbmenge hängt dabei wesentlich von der Abdruckbreite b2, der sich berührenden Walzen 1 und 4 ab.The printing unit shown schematically in Fig. 1 comprises a short inking unit with an anilox roller 1, against which an ink pan 2 with a doctor unit 3 can be set and an inking roller 4. The ink removed from the ink fountain 2 with the anilox roller 1 is first applied to the inking roller 4 and transferred from this to a plate cylinder 5, the anilox roller 1 being doctored off by means of the doctor unit 3. On the plate cylinder 5, a dampening roller 6 of a dampening unit 7 is employed. The plate cylinder 5 transfers the ink to a blanket cylinder 8 which is in contact with another cylinder 9. The cylinder 9 is either an impression cylinder or the blanket cylinder of another inking unit. The amount of ink transferred during the ink transfer from one roller 1 to another roller 4 or to the plate cylinder 5 essentially depends on the impression width b2 of the rollers 1 and 4 in contact.

Die Abdruckbreite b1 zwischen Walze 4 und Plattenzylinder 5 hingegen beeinflußt maßgeblich die in die Farbe einemulgierte Feuchtmittelmenge, die ins Farbwerk zurückgespalten wird.The impression width b1 between roller 4 and plate cylinder 5, on the other hand, has a significant influence on the amount of dampening solution emulsified into the ink, which is split back into the inking unit.

Fig. 2 zeigt ein Ausführungsbeispiel einer Stelleinrichtung zur Achsenabstandsänderung der Farbauftragswalze 4 bezüglich der Achsen der Rasterwalze 1 und des Plattenzylinders 5. Die Farbauftragwalze 4 ist beidseitig jeweils mittels zweier Exzenterbuchsen 10 und 13 in den Seitenwänden um eine Achse 12 drehbar gelagert. Die innere Exzenterbuchse 10 ist über die Fläche 10a in einer äußeren Exzenterbuchse 13 drehbar gelagert. Die innere Exzenterbuchse 10 weist seitlich einen Klemmring 11 auf, der einen Ansatz 14, der mit einem mittels eines motorisch angetriebenen Gewindeteils 15 verstellbaren, an der Seitenwand fest angebrachten Anschlag 16 zusammenwirkt und einen zweiten Ansatz 17 trägt, der mit einem Kolben 18 eines drehbar an der Seitenwand angebrachten An-/Abstellzylinders 19 gelenkartig verbunden ist.Fig. 2 shows an embodiment of an adjusting device for changing the spacing of the inking roller 4 with respect to the axes of the anilox roller 1 and the plate cylinder 5. The inking roller 4 is rotatably mounted on both sides by means of two eccentric bushes 10 and 13 in the side walls about an axis 12. The inner eccentric bushing 10 is rotatably mounted in an outer eccentric bushing 13 via the surface 10a. The inner eccentric bushing 10 has a clamping ring 11 on the side, which has a shoulder 14 which is connected to a threaded part 15 by means of a motor-driven part adjustable, fixed to the side wall stop 16 cooperates and carries a second projection 17 which is articulated with a piston 18 of a rotatably mounted on / off cylinder 19.

Ein Schwenken der inneren Exzenterbuchse 10 bewirkt je nach der Schwenkrichtung, also je nach der Beaufschlagung des Zylinders 19, der beispielsweise ein Pneumatikzylinder sein kann, ein Andrücken des Farbauftragzylinders 4 an die Rasterwalze 1 und den Plattenzylinder 5 oder ein Abstellen der Farbauftragwalze 4 von der Rasterwalze 1 und dem Plattenzylinder 5, da durch die innere Exzenterbuchse 10 eine relativ große exzentrische Verschwenkung möglich ist.Swiveling the inner eccentric bushing 10, depending on the swivel direction, i.e. depending on the action on the cylinder 19, which can be a pneumatic cylinder, for example, causes the inking cylinder 4 to be pressed against the anilox roller 1 and the plate cylinder 5 or the inking roller 4 to be set down from the anilox roller 1 and the plate cylinder 5, since a relatively large eccentric pivoting is possible through the inner eccentric bushing 10.

Die äußere Exzenterbuchse 13 ist mit einem Ansatz 20 über eine gelenkartig angebrachte Zugstange 21 mit einer Verstelleinrichtung 22 verbunden. Die Zugstange 21 kann in bekannter Weise motorisch mittels eines Gewindeteils 23 und eines Schneckenrades in vorteilhafter Weise hin- und herbewegt werden (Fig. 3). Der Anschlag 16 für die innere Exzenterbuchse 10 und die Verstelleinrichtung 22 für die äußere Exzenterbuchse 13 ermöglichen eine fein abgestimmte Veränderung der Abdruckbreiten b1, b2 der Farbauftragwalze 4 zur Rasterwalze 1 und/oder zum Plattenzylinder 5.The outer eccentric bushing 13 is connected to an adjustment device 22 by means of an extension 20 via an articulated pull rod 21. The pull rod 21 can be moved back and forth in a known manner by means of a threaded part 23 and a worm wheel in an advantageous manner (FIG. 3). The stop 16 for the inner eccentric bushing 10 and the adjusting device 22 for the outer eccentric bushing 13 enable a finely tuned change in the impression widths b1, b2 of the inking roller 4 to the anilox roller 1 and / or to the plate cylinder 5.

Das Getriebeelement 15 des Anschlags 16 ist als Bolzen ausgebildet, der in bekannter Weise mit einer Verstellspindel 24 (Fig. 3) zusammenwirkt, so daß der verstellbare Anschlag 16 die innere Exzenterbuchse 10 in geringen Maßen schwenken kann. Einerseits drückt der An-/Abstellzylinder 19 die innere Exzenterbuchse 10 gegen den Anschlag 16, andererseits kann der Anschlag 16, da er mittels seines verstellbaren Getriebeelementes 15 eine größere Kraft als der Stellzylinder 19 aufbringen kann, die innere Exzenterbuchse 10 gegen den Stellzylinder 19 verschwenken. Somit wird immer ein fester Sitz der Farbauftragwalze 4 in ihrer Lagerung gewährleistet.The gear element 15 of the stop 16 is designed as a bolt which interacts in a known manner with an adjusting spindle 24 (FIG. 3), so that the adjustable stop 16 can pivot the inner eccentric bush 10 to a small extent. On the one hand, the on / off cylinder 19 presses the inner eccentric bush 10 against the stop 16, on the other hand the stop 16, since it can exert a greater force than the adjusting cylinder 19 by means of its adjustable gear element 15, can pivot the inner eccentric bush 10 against the adjusting cylinder 19. This ensures that the inking roller 4 is always firmly seated in its storage.

Sowohl die Verstellvorrichtung 22 als auch der Anschlag 16 ist mit einer Schaltungsanordnung, wie in Fig. 3 gezeigt ist, verbunden. Die Schaltungsanordnung weist im allgemeinen einen Meßwertumformer 25 und einen Sollwertgeber 26 auf, die beide mit einem Vergleichselement 27 verbunden sind. Über ein Übertragungselement 28 mit einem einstellbaren Zeitverhalten, so daß das Zeitverhalten der Reguliereinrichtung auf das Zeitverhalten der Regelstrecke angepaßt werden kann, und einem Signalverstärker 29 ist die Schaltungsanordnung jeweils mit einem Schrittmotor 30 des Anschlags 16 der inneren Exzenterbuchse 10 und einem Schrittmotor 31 des Verstellelementes 22 der äußeren Exzenterbuchse 13 verbunden. Beide Schrittmotoren 30, 31 sind jeweils mit einem Voreinstellrad 32, 33 versehen. Der Meßwertumformer 25 ist an ein Meßelement 34 gekoppelt.Both the adjusting device 22 and the stop 16 are connected to a circuit arrangement, as shown in FIG. 3. The Circuit arrangement generally has a transducer 25 and a setpoint generator 26, both of which are connected to a comparison element 27. Via a transmission element 28 with an adjustable timing, so that the timing of the regulating device can be adapted to the timing of the controlled system, and a signal amplifier 29, the circuit arrangement is in each case with a stepper motor 30 of the stop 16 of the inner eccentric bush 10 and a stepper motor 31 of the adjusting element 22 the outer eccentric bush 13 connected. Both stepper motors 30, 31 are each provided with a presetting wheel 32, 33. The transducer 25 is coupled to a measuring element 34.

Die Erfindung löst also die Aufgabe durch eine Regelung der Abdruckbreiten b1 und b2. Nach Vorgabe einer Grundeinstellung, die vom Drucker auch während des Druckens verändert werden kann, erfolgt die automatische Nachregelung der Abdruckbreiten im Sinne einer Konstanthaltung der Druckergebnisse basierend auf dieser Grundeinstellung. Als infrage kommende Meßgrößen für die Regelung dienen zum einen die Farbdichte, zum anderen aber auch die Parameter, die Abdruckbreitenänderungen erfassen, hervorrufen oder mit ihnen korrelieren. Diese Parameter sind die mit den "on line" schwierig zu messenden Abdruckbreiten zusammenhängenden Linienkräfte bzw. Lagerkräfte und vor allem die die Änderungen bewirkenden Temperaturen in Walzenkörpern und Seitenwänden.The invention therefore achieves the object by regulating the impression widths b1 and b2. After specifying a basic setting, which can also be changed by the printer during printing, the print widths are automatically readjusted in the sense of keeping the print results constant based on this basic setting. The measurement variables that can be used for the control are, on the one hand, the color density, and, on the other hand, the parameters that detect, cause or correlate changes in the print width. These parameters are the line forces or bearing forces associated with the impression widths that are difficult to measure "on line" and, above all, the temperatures in the roller bodies and side walls causing the changes.

Das Meßelement 34 kann also ein Densitometer sein, das die Farbdichte entweder on-line oder off-line mißt, oder ein Dehnmeßstreifen, der die Lagerkraft der angestellten Farbauftragwalze 4 mißt, oder Abtasträder, die den Zylinderdurchmesser der Farbauftragwalze 4 on-line abtasten. Die bevorzugte Ausführungsform des Meßelementes 34 für das Ausführungsbeispiel, da die billigste, ist jedoch ein thermoempfindliches Element.The measuring element 34 can thus be a densitometer that measures the ink density either on-line or off-line, or a strain gauge that measures the bearing force of the employed inking roller 4, or scanning wheels that scan the cylinder diameter of the inking roller 4 on-line. However, the preferred embodiment of the measuring element 34 for the exemplary embodiment, since the cheapest, is a thermo-sensitive element.

Die Temperaturerfassung erfolgt im Ausführungsbeispiel an mehreren Stellen. Zum einen werden die Walzentemperaturen, zum anderen die Seitenwandtemperaturen erfaßt.In the exemplary embodiment, the temperature is recorded at several points. On the one hand the roll temperatures and on the other hand the side wall temperatures are recorded.

Zum Erfassen der Walzentemperaturen eignen sich Thermoelemente, die entweder in die Walzen 1, 4, 5 integriert oder in den Figuren nicht gezeigte Fingerschutzspindeln, die nahe der Walzenoberflächen in den Walzenspalt zwischen Rasterwalze 1 und Farbauftragwalze 4, bzw. Farbauftragwalze 4 und Plattenzylinder 5 untergebracht sind, aber auch, falls vorhanden, in einem Kühlungssystem eingesetzt sein können, wobei die Temperaturen des zu- und abgeführten Kühlmittels gemessen werden. Je nach Ausführung des Kühlkreislaufs kann auch die Durchflußmenge des Kühlmittels als Meßparameter in die Regelung mit einbezogen werden.Suitable for detecting the roller temperatures are thermocouples which are either integrated in the rollers 1, 4, 5 or finger protection spindles (not shown in the figures) which are accommodated near the roller surfaces in the roller gap between the anilox roller 1 and the inking roller 4, or the inking roller 4 and plate cylinder 5 , but also, if present, can be used in a cooling system, the temperatures of the coolant being fed in and out being measured. Depending on the design of the cooling circuit, the flow rate of the coolant can also be included in the control as a measurement parameter.

Die Seitenwandtemperaturen sind mittels darauf oder innerhalb der Seitenwände installierten Thermoelementen erfaßbar.The side wall temperatures can be detected by means of thermocouples installed thereon or within the side walls.

Wird mittels der thermoempfindlichen Elemente eine Temperaturveränderung festgestellt, so werden durch entsprechende Spannungsänderungen in den Thermoelementen 34 elektrische Signale über den Meßwertumformer 25 an das Vergleichselement 27 weitergebeben. Im Vergleichselement 27 wird der entsprechend umgeformte Meßwert X mit aus dem Sollwertgeber 26 vorgebbaren gewünschten Farbdichtewert w verglichen und die Differenz Xw über das Übertragungselement 28 und den Signalverstärker 29 in Form eines Spannungswertes an die beiden Schrittmotoren 30, 31 weitergegeben.If a temperature change is ascertained by means of the thermo-sensitive elements, then electrical signals are passed on to the comparison element 27 by way of corresponding voltage changes in the thermocouples 34 via the transducer 25. In the comparison element 27, the correspondingly shaped measured value X is compared with the desired color density value w that can be predetermined from the setpoint generator 26, and the difference X w is passed on to the two stepper motors 30, 31 in the form of a voltage value via the transmission element 28 and the signal amplifier.

Im Falle der Verwendung eines Densitometers als Meßelement, daß die Farbdichte direkt mißt, kann auf einen Meßwertumformer 25 verzichtet werden.If a densitometer is used as a measuring element that measures the color density directly, a transducer 25 can be dispensed with.

Es kann also einerseits die Farbmenge durch Änderung der Abdruckbreite b2 der Farbauftragwalze 4 zur Rasterwalze 1 mittels einer Achsenabstandsänderung a2, andererseits die in die Farbe einemulgierte Feuchtmenge durch Änderung der Abdruckbreite b1 der Farbauftragwalze 4 zum Plattenzylinder 5 mittels einer Achsenabstandsänderung a1 geregelt werden. Zum Beispiel wird bei einer Voreinstellung der Abdruckbreiten b1, b2 mittels des An-/Abstellzylinders 19 und der Voreinstellräder 32, 33 bei 20°C Oberflächentemperatur der Farbauftragwalze 4 eine gewünschte Farbdichte erreicht, müssen bei einer Temperaturerhöhung die Abdruckbreiten b1, b2 über eine entsprechende Achsenabstandsänderung a1, a2 verringert werden. Der Sollwertgeber 26 kann einen konstanten Wert w liefern, der im Lauf des Druckprozesses um gewünschte Werte geändert werden kann, oder der Sollwert w folgt einer temperaturabhängigen durch Messungen ermittelten Hochlaufkurve. Entsprechend einer nicht linearen Funktion werden die beiden Exzenterbuchsen 10, 13 bewegt. Es werden also stets zwei in nicht linearem Zusammenhang stehende Verstellungen vorgenommen. Die doppelt exzentrische Lagerung weist zwei Freiheitsgrade auf.On the one hand, the amount of ink can be regulated by changing the imprint width b2 of the inking roller 4 to the anilox roller 1 by changing the axis distance a2, on the other hand the amount of moisture emulsified in the ink can be regulated by changing the imprint width b1 of the inking roller 4 to the plate cylinder 5 by changing the axis distance a1. For example, when the impression widths b1, b2 are preset by means of the on / off cylinder 19 and the presetting wheels 32, 33 at 20 ° C. If the surface temperature of the inking roller 4 reaches a desired ink density, the impression widths b1, b2 must be reduced by a corresponding change in the axis spacing a1, a2 when the temperature rises. The setpoint generator 26 can deliver a constant value w, which can be changed by desired values in the course of the printing process, or the setpoint w follows a temperature-dependent run-up curve determined by measurements. The two eccentric bushes 10, 13 are moved in accordance with a non-linear function. So there are always two adjustments that are not linearly related. The double eccentric bearing has two degrees of freedom.

Eine Entkopplung der Stellbewegungen wäre mittels zweier denkbaren linearen Stellvorrichtungen möglich, jedoch vorrichtungsmäßig so aufwendig, daß auf ihre Ausführungsform hier verzichtet wird.A decoupling of the actuating movements would be possible by means of two conceivable linear actuating devices, but the device is so complex that its embodiment is omitted here.

Die doppelt exzentrische Lagerung 10, 13 mit ihren Verstelleinrichtungen 16, 19, 22 ist auf beiden Seiten der Farbauftragwalze 4 identisch. Durch unterschiedliche Einstellungen ist eine axiale minimale Schrägstellung der Farbauftragwalze 4 in Bezug zur Rasterwalze 1 und zum Plattenzylinder 5 möglich, um eventuelle Farbdichteunterschiede über die Breite der Farbauftragwalze 4 kompensieren zu können.The double eccentric bearing 10, 13 with its adjusting devices 16, 19, 22 is identical on both sides of the inking roller 4. An axially minimal inclination of the inking roller 4 in relation to the anilox roller 1 and the plate cylinder 5 is possible by different settings in order to be able to compensate for possible differences in ink density across the width of the inking roller 4.

Claims (11)

  1. Anilox offset printing unit with a short inking system, which has positioned between side walls a screen roller (1), capable of being loaded with ink and doctor-bladed, a plate inking roller (4) and a plate cylinder (5) inking a blanket cylinder (8), the plate cylinder working together with a damping unit (7), characterised in that the impression widths (b2, b1) of the plate inking roller (4) to the screen roller (1) and/or of the plate inking roller (4) to the plate cylinder (5) are changeable by means of an adjusting device (10, 13 and 16, 19, 22) with at least two degrees of freedom in dependence on a measured variable determined by means of at least one measuring element (34), which works together with the adjusting device (10, 13 and 16, 19, 22).
  2. Anilox offset printing unit according to claim 1, characterised in that the plate inking roller (4) is mounted doubly eccentrically on both sides by means of an inner (10) and an outer eccentric bushing (13) enclosing the inner eccentric bushing.
  3. Anilox offset printing unit according to claims 1 and 2, characterised in that an adjustment device (22 and 16, 19) is provided for the outer (13) and for the inner eccentric bushing (10) respectively.
  4. Anilox offset printing unit according to claim 3, characterised in that a motor-driven adjustable stop (14, 15, 16, 24, 30) and an operating cylinder (19) are provided for the adjustment device (16) of the inner eccentric bushing (10), and a motor-driven adjustable tension element (21, 23, 22, 31) is provided for the adjustment device of the outer eccentric bushing (13).
  5. Anilox offset printing unit according to one of the previous claims, characterised in that both adjustment devices (22 and 16, 19) are connected via a circuit arrangement to the measuring element (34).
  6. Anilox offset printing unit according to one of the previous claims, characterised in that the circuit arrangement has a setting means (26), a comparison element (27), a transmission element (28) and a signal amplifier (29).
  7. Anilox offset printing unit according to claim 5, characterised in that a heat-sensitive element is used as the measuring element (34).
  8. Anilox offset printing unit according to claim 7, characterised in that the measuring element (34) is arranged in or on a side wall.
  9. Anilox offset printing unit according to claim 5, characterised in that the measuring element (34) is composed of several heat-sensitive elements, which record, on the one hand, the temperature of the screen roller (1), the plate inking roller (4) and the plate cylinder (5) and, on the other hand, the side wall temperatures.
  10. Anilox offset printing unit according to claim 9, characterised in that the heat-sensitive elements for recording the roller temperatures are integrated in the rollers (1, 4, 5) and the heat-sensitive elements for recording the side wall temperatures are installed in the side walls.
  11. Anilox offset printing unit according to one of the previous claims, characterised in that the plate inking roller (4) is axially diagonally adjustable by means of the doubly eccentric mounting (10, 13) on both sides with regard to the screen roller (1) and the plate cylinder (5).
EP93105094A 1992-04-04 1993-03-27 Anilox-offset printing unit with short inking system Expired - Lifetime EP0564936B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4211379 1992-04-04
DE4211379A DE4211379C2 (en) 1992-04-04 1992-04-04 Anilox offset printing unit with a short inking unit

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EP0564936A1 EP0564936A1 (en) 1993-10-13
EP0564936B1 true EP0564936B1 (en) 1996-09-25

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US (1) US5355796A (en)
EP (1) EP0564936B1 (en)
JP (1) JPH0640017A (en)
DE (2) DE4211379C2 (en)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4232163C3 (en) * 1992-09-25 2001-09-06 Koenig & Bauer Ag Device for maintaining an adjusted pressure of an inking roller on a form cylinder of a rotary printing press
DE4427967B4 (en) * 1993-08-24 2004-09-30 Heidelberger Druckmaschinen Ag Method for presetting the pressure between ink-guiding cylinders of a printing press
DE4335282C2 (en) * 1993-10-15 1998-01-29 Wifag Maschf Method for controlling the sequence of a driven inking roller in relation to a driven forme cylinder in the printing unit of an offset rotary printing machine and a correspondingly controlled printing unit
GB9426166D0 (en) * 1994-12-23 1995-02-22 Langston Corp Printing apparatus
DE19521827A1 (en) * 1995-06-16 1996-12-19 Roland Man Druckmasch Printing press direct drive
DE19732497B4 (en) * 1997-07-29 2005-08-11 Man Roland Druckmaschinen Ag Short inking unit in a printing unit of a rotary printing machine
DE19740480B4 (en) * 1997-09-15 2005-07-21 Man Roland Druckmaschinen Ag Method and device for employing a paint roller of a rotary printing machine
EP1094948B1 (en) * 1998-07-03 2002-03-20 Koenig & Bauer Aktiengesellschaft Short inking mechanism for rotary presses
EP1159136B1 (en) * 1999-03-03 2005-05-18 James F. Price Keyless inker for a printing press
US6672211B2 (en) 1999-03-03 2004-01-06 James F. Price Inking systems for printing presses
US6895861B2 (en) * 2003-07-11 2005-05-24 James F. Price Keyless inking systems and methods using subtractive and clean-up rollers
DE19963944C1 (en) * 1999-12-31 2001-06-13 Koenig & Bauer Ag Method to adjust cylinders of printing machine; involves moving abutment to limit stroke of axle holder for adjustable cylinder at space from base plate and applying adjusting and holding forces
DE10021540A1 (en) 2000-05-03 2001-11-08 Koenig & Bauer Ag Arrangement for setting a distance from the axes of rotation of cylinders
DE10035787C2 (en) 2000-07-22 2002-05-16 Koenig & Bauer Ag Process for regulating a web tension
DE10042503A1 (en) 2000-08-30 2002-03-14 Roland Man Druckmasch Rotary press
DE20122584U1 (en) * 2001-03-27 2006-07-27 Windmöller & Hölscher Kg Print image setting device for rotary printing machine has camera feeding successively acquired print images to control or regulating unit that produces signals for participating rollers
DE10211870B4 (en) 2001-03-29 2010-07-29 Heidelberger Druckmaschinen Ag Method for adjusting two rollers of a printing unit which can be applied to one another
DE10232110B4 (en) * 2001-09-07 2015-06-03 Heidelberger Druckmaschinen Ag Method for adjusting the fountain solution supply of an offset printing machine
DE10144563A1 (en) * 2001-09-11 2003-03-27 Heidelberger Druckmasch Ag Printing press and method for operating an inking unit
WO2003049948A2 (en) 2001-12-06 2003-06-19 Koenig & Bauer Aktiengesellschaft Device for regulating cylinders in a printing machine
WO2003067678A1 (en) * 2002-02-08 2003-08-14 Siemens Aktiengesellschaft Production of thin, homogeneous layers in the production of polymer electronics
DE10308408A1 (en) 2002-03-20 2003-10-02 Heidelberger Druckmasch Ag Method for tempering printing press involves measuring temperature at second measurement location during tempering phase of printing press preceding production printing
DE10215422A1 (en) 2002-04-08 2003-10-23 Roland Man Druckmasch Ink or dampening unit of a rotary printing press
DE10215613A1 (en) * 2002-04-09 2003-10-30 Roland Man Druckmasch Roller lock for rollers of printer's inker and humidifier has bearing shell holding roller stud, clamp, and tensioning element
DE10219941A1 (en) * 2002-05-03 2003-11-20 Roland Man Druckmasch Inking mechanism for printer has adjustable roller mounted in eccentric bushes which are fitted in two housings arranged side by side and supported for sliding and swivel movement relative to each other across longitudinal direction
DE10325185B4 (en) * 2002-07-01 2017-04-13 Heidelberger Druckmaschinen Ag Method for operating a printing unit of a printing press as a function of the color temperature and according to the method operating press control
JP4370087B2 (en) * 2002-10-31 2009-11-25 リョービ株式会社 Support structure for offset printing machine blanket cylinder
US6796228B2 (en) * 2002-12-27 2004-09-28 Day International, Inc. Dampener metering device
DE102004008090A1 (en) * 2004-02-19 2005-09-08 Man Roland Druckmaschinen Ag Device for positioning a roller in a dyeing or dampening unit of a rotary printing machine
EP1859937A3 (en) * 2004-04-05 2010-07-07 Koenig & Bauer Aktiengesellschaft Printing unit of a web-fed rotary printing press
DE102005014255A1 (en) * 2005-03-30 2006-10-05 Koenig & Bauer Ag Grid/ink form rollers and/or plate/rubber blanket cylinders bearing for rotary printing machine, has supporting plates attached to shaft journals of rollers/cylinders and moved relative to journals, and support units arranged between plates
FR2895310B1 (en) * 2005-12-23 2009-04-17 Goss Int Montataire Sa INK DEVICE AND CORRESPONDING ADJUSTMENT METHOD
US20070214981A1 (en) * 2006-03-14 2007-09-20 Heidelberger Druckmaschinen Ag Sheet-fed printing machine
DE102006011859A1 (en) * 2006-03-15 2007-09-20 Heidelberger Druckmaschinen Ag Sheetfed
DE102007011045B4 (en) * 2006-03-24 2011-12-22 Heidelberger Druckmaschinen Ag press
DE102006050567B4 (en) * 2006-10-26 2009-09-17 Koenig & Bauer Aktiengesellschaft printing unit
JP5053051B2 (en) * 2006-11-20 2012-10-17 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Anilox printing unit
DE102007022079A1 (en) * 2007-05-11 2008-11-13 Heidelberger Druckmaschinen Ag Method for automated adjustment of a rotational body pressure in a printing machine
DE102008015531A1 (en) 2008-03-25 2009-10-01 Koenig & Bauer Aktiengesellschaft Short inking device for rotary printing press, has ink roller arranged to squeegee device removing profile of remaining inks in direction of rotation provided after contact point to form roller
DE102008035277A1 (en) * 2008-07-29 2010-02-04 Fischer & Krecke Gmbh Roller's e.g. pressure roller, rolling position adjusting method for flexo-printing machine, involves measuring temperature at measuring points of machine frame, and correcting adjusting positions of rollers depending on mathemetical model
US20110132216A1 (en) * 2009-12-09 2011-06-09 7242514 Canada Inc. Stack angle compensation arrangement for a skewing adjustment system in an offset printing press
US20120174807A1 (en) * 2010-12-16 2012-07-12 Goss International Americas, Inc. Adjustable Inking or Dampening Apparatus for a Variable Cutoff Press and Method
CN102689499B (en) * 2011-03-24 2015-04-29 海德堡印刷机械股份公司 Anilox roll printing apparatus
DE102013217942B4 (en) * 2013-09-09 2017-04-27 Koenig & Bauer Ag Method and device for setting bodies of revolution of a printing machine
DE102013217948B4 (en) 2013-09-09 2016-05-12 Koenig & Bauer Ag Printing machine for securities printing with an Orlof offset printing unit
CN113939403B (en) * 2019-02-05 2022-07-29 柯尼格及包尔公开股份有限公司 Intaglio printing device and method for setting and/or changing ink delivery in an intaglio printing method
DE102019111804A1 (en) * 2019-05-07 2020-11-12 Koenig & Bauer Ag Method for setting and / or changing an ink transfer, printing unit and printing machine with a printing unit
CN112046131A (en) * 2020-09-09 2020-12-08 时瑶 Printing equipment capable of automatically adjusting pressure of roller and automatically inking

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE708553C (en) * 1934-06-17 1941-07-24 Albert Schnellpressen Inking unit for rotary printing machines for simultaneous turning on and off of all inking rollers
GB620148A (en) * 1945-05-22 1949-03-21 Goss Printing Press Co Ltd Improvements in or relating to inking mechanisms for printing presses
US2568761A (en) * 1946-03-22 1951-09-25 Miehle Printing Press & Mfg Pressure adjustment and trip for printing cylinders
FR1140380A (en) * 1954-10-01 1957-07-19 Crabtree & Sons Ltd R Further training in printing machines
US4426897A (en) * 1981-07-13 1984-01-24 Littleton Francis J Thermal adjustment method and apparatus for rotating machines
DE3707996C1 (en) * 1987-03-12 1988-10-20 Roland Man Druckmasch Device for influencing the pressure of the bearing ring
DE3838546A1 (en) * 1988-01-09 1989-07-20 Frankenthal Ag Albert Doctor device
DE3825517A1 (en) * 1988-07-27 1990-02-01 Wifag Maschf DEVICE FOR SWITCHING ON AND OFF AND ADJUSTING FARBWERKS- OR. DAMPING ROLLER OF A PRINTING MACHINE
US5094162A (en) * 1990-08-30 1992-03-10 A. B. Dick Company Offset printing machine

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DE4211379C2 (en) 1999-01-07
EP0564936A1 (en) 1993-10-13
DE59303921D1 (en) 1996-10-31
DE4211379A1 (en) 1993-10-14
US5355796A (en) 1994-10-18
JPH0640017A (en) 1994-02-15

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