EP0025886B1 - Device for adjusting the fountain blade of an inking device of a printing machine - Google Patents

Device for adjusting the fountain blade of an inking device of a printing machine Download PDF

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Publication number
EP0025886B1
EP0025886B1 EP19800105023 EP80105023A EP0025886B1 EP 0025886 B1 EP0025886 B1 EP 0025886B1 EP 19800105023 EP19800105023 EP 19800105023 EP 80105023 A EP80105023 A EP 80105023A EP 0025886 B1 EP0025886 B1 EP 0025886B1
Authority
EP
European Patent Office
Prior art keywords
pin
measurement value
fountain blade
transmission element
inking
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
Application number
EP19800105023
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German (de)
French (fr)
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EP0025886A1 (en
Inventor
Werner Rees
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0025886A1 publication Critical patent/EP0025886A1/en
Application granted granted Critical
Publication of EP0025886B1 publication Critical patent/EP0025886B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/045—Remote control of the duct keys

Definitions

  • the invention relates to a device for adjusting the ink knife interacting with a roller of an inking unit of a printing press with a plurality of ink zone setting pins, which are distributed over the width of the ink knife and axially moved for knife adjustment, and a display device for adjusting the ink knife.
  • each pen has a display scale at one end that interacts with a fixed mark.
  • the ink knife can make such an adjustment do not follow fully as it cannot be bent arbitrarily. Rather, a play occurs between the ink zone adjustment pins arranged on both sides of the ink zone adjustment pin set to the smallest gap size and the ink knife, so that these two ink zone adjustment pins do not transmit any adjustment forces to the ink knife. Your setting therefore does not correspond to the actual setting of the colorimeter in these areas. As a result, the scales associated with these two ink zone pens display incorrectly.
  • the invention has for its object to design a device of the type mentioned so that the actual deflection of the colorimeter is displayed.
  • each ink zone setting pin has an axially continuous bore and the bore receives a measuring pin, against one end of which a measured value transmission element of the display device is guided under the action of a spring and the other end of which scans the position of the ink knife.
  • the device comprises a housing designated 1, which is closed on its back by a holding plate 2.
  • a plate 5, which carries a reduction gear 6 and an electric motor 7, is fastened to the holding plate 2 by means of screws 3 and spacers 4.
  • a pinion 8, which meshes with a ring gear 9 of a color zone adjusting pin 10, is firmly seated on the output shaft of the reduction gear 6.
  • One end of the ink zone setting pin 10 is rotatably and displaceably guided in a bearing bore 11 of the holding plate 2.
  • the other end of the ink zone setting pin 10 has an external thread 12 which engages in a corresponding internal thread of a bush 13 fastened to the board 5.
  • the ink zone setting pin 10 has an axially continuous bore which receives a measuring pin 14 freely axially displaceable.
  • the ends of the ink zone setting pin 10 and the measuring pin 14 inside the housing cooperate with a transmission pin 15 which is freely displaceably mounted in the housing 1.
  • the transmission pin 15 acts via a transmission lever 16, which can be pivoted about an axis 17 fixed to the housing, on an ink knife 18 attached to the housing 1.
  • the color knife 18 is by means of the transfer lever 16 more or less adjustable against a roller 19 of the inking unit with elastic deformation.
  • the end of the measuring pin 14 facing away from the transmission pin 15 interacts with the one arm of a measuring value transmission element 20 which is designed as a two-armed lever and which can be pivoted about an axis 21 which is fixedly connected to the holding plate 2.
  • the other arm of the measured value transmission element 20 receives an adjusting screw 22, against which, under the action of a spring 23, a measurement sensor 25 guided in a bushing 24 bears. In order to achieve a sufficiently precise display in view of the small adjusting movements of the measuring pin 14, this arm is longer than the arm interacting with the measuring pin 14.
  • a pointer 26 can also be attached to the measured value transmission element 20, which cooperates with a fixed scale 27, as is indicated by dash-dotted lines.
  • the electric motor 7 is switched on.
  • the pinion 8 rotates via the reduction gear 6 due to the engagement of its external thread 12 in the internal thread of the socket 13 not only rotates, but also shifts in or against the direction of arrow a.
  • This displacement movement is transmitted via the transmission pin 15 and the transmission lever 16 to the ink knife 18, so that, for example, when the ink zone adjusting pin 10 moves in the direction of arrow a, there is a reduction in the gap between the ink knife 18 and the roller 19.
  • the sensor 25 holds the measuring pin 14 in contact with the transmission pin 15 via the measured value transmission element 20.
  • the ink zone adjustment pin 10 moves into its right end position on the drawing. Since the ink knife 18 cannot fully follow this setting due to its limited elasticity, there is play between the ink zone setting pin 10 and the transfer pin 15. The ink zone setting pin 10 thus assumes a position which does not correspond to the setting of the ink meter 18.
  • the spring 23 holds the measuring pin 14 in contact with the transmission pin 15 and thus also the transmission pin 15 and the transmission lever 16 in contact with the colorimeter 18 as a result of the measuring sensor 25 and the measured value transmission element 20.
  • the measuring pin 14 assumes a position which is exactly that corresponds to the actual position of the color knife 18.

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

Description

Die Erfindung betrifft eine Vorrichtung zum Einstellen des mit einer Walze zusammenwirkenden Farbmessers eines Farbwerkes einer Druckmaschine mit mehreren über die Breite des Farbmessers verteilt angeordneten, zur Messereinstellung axial bewegten Farbzonenstellstiften und einer Anzeigevorrichtung für die Einstellung des Farbmessers.The invention relates to a device for adjusting the ink knife interacting with a roller of an inking unit of a printing press with a plurality of ink zone setting pins, which are distributed over the width of the ink knife and axially moved for knife adjustment, and a display device for adjusting the ink knife.

Bei einer derartigen, aus dem DE-GM 7 730 668 bekannten Vorrichtung greifen die Farbzonenstellstifte jeweils mit einem Außengewinde in ein gehäusefestes Innengewinde ein. Durch Drehung der Farbzonenstellstifte kann daher eine axiale Stellbewegung auf das Farbmesser ausgeübt werden. Zur Anzeige der Einstellung trägt jeder Stift am einen Ende eine Anzeigeskala, die mit einer festen Marke zusammenwirkt.In such a device known from DE-GM 7 730 668, the ink zone setting pins each engage with an external thread in a housing-internal thread. By rotating the ink zone adjustment pins, an axial adjustment movement can therefore be exerted on the ink knife. To indicate the setting, each pen has a display scale at one end that interacts with a fixed mark.

Zwingt das zu druckende Sujet dazu, beispielsweise einen der Farbzonenstellstifte so einzustellen, daß er das Farbmesser soweit wie möglich an die Walze anstellt, während die beiderseits benachbarten Farbzonenstellstifte auf die maximal mögliche Spaltbreite zwischen Farbmesser und Walze eingestellt sind, so kann das Farbmesser einer derartigen Einstellung nicht voll folgen, da es nicht beliebig gebogen werden kann. Zwischen den beiderseits des auf kleinste Spaltgröße eingestellten Farbzonenstellstiftes angeordneten Farbzonenstellstiften und dem Farbmesser tritt vielmehr ein Spiel auf, so daß diese beiden Farbzonenstellstifte keine Einstellkräfte auf das Farbmesser übertragen. Ihre Einstellung entspricht daher nicht der tatsächlichen Einstellung des Farbmessers in diesen Bereichen. Infolgedessen zeigen die diesen beiden Farbzonenstellstiften zugeordneten Skalen falsch an.If the subject to be printed forces, for example, to adjust one of the ink zone setting pins so that it adjusts the ink knife as far as possible to the roller, while the ink zone adjustment pins adjacent on both sides are set to the maximum possible gap width between ink knife and roller, the ink knife can make such an adjustment do not follow fully as it cannot be bent arbitrarily. Rather, a play occurs between the ink zone adjustment pins arranged on both sides of the ink zone adjustment pin set to the smallest gap size and the ink knife, so that these two ink zone adjustment pins do not transmit any adjustment forces to the ink knife. Your setting therefore does not correspond to the actual setting of the colorimeter in these areas. As a result, the scales associated with these two ink zone pens display incorrectly.

Die gleiche Fehlanzeige kann auch bei einer aus der DE-OS 2 164351 bekannten elektrischen Anzeigevorrichtung auftreten, bei der ebenfalls die Lage der Farbzonenstellstifte angezeigt wird.The same false indication can also occur in an electrical display device known from DE-OS 2 164351, in which the position of the ink zone setting pins is also displayed.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Gattung so auszugestalten, daß die tatsächliche Durchbiegung des Farbmessers angezeigt wird.The invention has for its object to design a device of the type mentioned so that the actual deflection of the colorimeter is displayed.

Erfindungsgemäß wird dies dadurch erreicht, daß jeder Farbzonenstellstift eine axial durchlaufende Bohrung aufweist und die Bohrung einen Meßstift aufnimmt, gegen dessen eines Ende ein Meßwertübertragungsglied der Anzeigevorrichtung unter der Wirkung einer Feder geführt ist und dessen anderes Ende die Stellung des Farbmesers abtastet.According to the invention this is achieved in that each ink zone setting pin has an axially continuous bore and the bore receives a measuring pin, against one end of which a measured value transmission element of the display device is guided under the action of a spring and the other end of which scans the position of the ink knife.

Weitere Merkmale und Vorteile ergeben sich aus den Unteransprüchen in Verbindung mit der Beschreibung eines Ausführungsbeispiels anhand der Zeichnung, die einen Querschnitt durch die erfindungsgemäße Vorrichtung wiedergibt.Further features and advantages emerge from the subclaims in connection with the description of an exemplary embodiment with reference to the drawing which shows a cross section through the device according to the invention.

Die Vorrichtung umfaßt ein mit 1 bezeichnetes Gehäuse, das auf seiner Rückseite durch eine Halteplatte 2 abgeschlossen ist. An der Halteplatte 2 ist mittels Schrauben 3 und Abstandsstücken 4 eine Platine 5 befestigt, die ein Untersetzungsgetriebe 6 und einen Elektromotor 7 trägt. Auf der Ausgangswelle des Untersetzungsgetriebes 6 sitzt fest ein Ritzel 8, das mit einem Zahnkranz 9 eines Farbzonenstellstiftes 10 kämmt. Das eine Ende des Farbzonenstellstiftes 10 ist in einer Lagerbohrung 11 der Halteplatte 2 verdreh- und verschiebbar geführt. Das andere Ende des Farbzonenstellstiftes 10 weist ein Außengewinde 12 auf, das in ein entsprechendes Innengewinde einer an der Platine 5 befestigten Buchse 13 eingreift.The device comprises a housing designated 1, which is closed on its back by a holding plate 2. A plate 5, which carries a reduction gear 6 and an electric motor 7, is fastened to the holding plate 2 by means of screws 3 and spacers 4. A pinion 8, which meshes with a ring gear 9 of a color zone adjusting pin 10, is firmly seated on the output shaft of the reduction gear 6. One end of the ink zone setting pin 10 is rotatably and displaceably guided in a bearing bore 11 of the holding plate 2. The other end of the ink zone setting pin 10 has an external thread 12 which engages in a corresponding internal thread of a bush 13 fastened to the board 5.

Der Farbzonenstellstift 10 weist eine axial durchlaufende Bohrung auf, die einen Meßstift 14 frei axial verschiebbar aufnimmt. Die gehäuseinneren Enden des Farbzonenstellstiftes 10 und des Meßstiftes 14 wirken mit einem Übertragungsstift 15 zusammen, der im Gehäuse 1 frei verschiebbar gelagert ist. Infolge dieser Anordnung liegt der Meßstift 14 gegen Zutritt von Farbtröpfchen gesichert im Inneren des Gehäuses 1. Der Übertragungsstift 15 wirkt über einen Übertragungshebel 16, der um eine gehäusefeste Achse 17 schwenkbar ist, auf ein am Gehäuse 1 befestigtes Farbmesser 18. Das Farbmesser 18 ist mittels des Übertragungshebels 16 unter elastischer Verformung mehr oder minder weit gegen eine Walze 19 des Farbwerkes anstellbar.The ink zone setting pin 10 has an axially continuous bore which receives a measuring pin 14 freely axially displaceable. The ends of the ink zone setting pin 10 and the measuring pin 14 inside the housing cooperate with a transmission pin 15 which is freely displaceably mounted in the housing 1. As a result of this arrangement, the measuring pin 14 is secured against the entry of paint droplets inside the housing 1. The transmission pin 15 acts via a transmission lever 16, which can be pivoted about an axis 17 fixed to the housing, on an ink knife 18 attached to the housing 1. The color knife 18 is by means of the transfer lever 16 more or less adjustable against a roller 19 of the inking unit with elastic deformation.

Das dem Übertragungsstift 15 abgewandte Ende des Meßstiftes 14 wirkt mit dem einen Arm eines als zweiarmigen Hebel ausgebildeten Meßwertübertragungsgliedes 20 zusammen, das um eine fest mit der Halteplatte 2 verbundene Achse 21 schwenkbar ist. Der andere Arm des Meßwertübertragungsgliedes 20 nimmt eine Stellschraube 22 auf, an der unter der Wirkung einer Feder 23 ein in einer Buchse 24 geführter Meßwertaufnehmer 25 anliegt. Um angesichts der geringen Stellbewegungen des Meßstiftes 14 eine hinreichend genaue Anzeige zu erreichen, ist dieser Arm länger als der mit dem Meßstift 14 zusammenwirkende Arm ausgebildet.The end of the measuring pin 14 facing away from the transmission pin 15 interacts with the one arm of a measuring value transmission element 20 which is designed as a two-armed lever and which can be pivoted about an axis 21 which is fixedly connected to the holding plate 2. The other arm of the measured value transmission element 20 receives an adjusting screw 22, against which, under the action of a spring 23, a measurement sensor 25 guided in a bushing 24 bears. In order to achieve a sufficiently precise display in view of the small adjusting movements of the measuring pin 14, this arm is longer than the arm interacting with the measuring pin 14.

Anstelle einer elektrischen Anzeigevorrichtung kann auch ein Zeiger 26 am Meßwertübertragungsglied 20 befestigt sein, der mit einer festen Skala 27 zusammenwirkt, wie dies strichpunktiert angedeutet ist.Instead of an electrical display device, a pointer 26 can also be attached to the measured value transmission element 20, which cooperates with a fixed scale 27, as is indicated by dash-dotted lines.

Weiterhin ist es für die Anwendbarkeit der Erfindung ohne Bedeutung, wie die Übertragungselemente ausgebildet sind, über die der Farbzonenstellstift 10 und der Meßstift 14 auf das Farbmesser wirken. Grundsätzlich können beide Stifte auch direkt mit dem Farbmesser zusammenwirken.Furthermore, it is of no importance for the applicability of the invention how the transmission elements are designed, via which the ink zone setting pin 10 and the measuring pin 14 act on the ink knife. In principle, both pens can also interact directly with the color knife.

Soll eine Änderung der Einstellung des Farbmessers 18 durchgeführt werden, so wird der Elektromotor 7 eingeschaltet. Infolgedessen dreht sich über das Untersetzungsgetriebe 6 das Ritzel 8. Dieser Drehbewegung folgt über den Zahnkranz 9 der Farbzonenstellstift 10, der sich infolge des Eingriffs seines Außengewindes 12 in das Innengewinde der Buchse 13 nicht nur dreht, sondern auch in bzw. entgegen der Richtung des Pfeiles a verschiebt. Diese Verschiebebewegung wird über den Übertragungsstift 15 und den Übertragungshebel 16 auf das Farbmesser 18 übertragen, so daß sich beispielsweise bei Bewegung des Farbzonenstellstiftes 10 in Richtung des Pfeiles a eine Verringerung des Spaltes zwischen dem Farbmesser 18 und der Walze 19 ergibt.If the setting of the colorimeter 18 is to be changed, the electric motor 7 is switched on. As a result, the pinion 8 rotates via the reduction gear 6 due to the engagement of its external thread 12 in the internal thread of the socket 13 not only rotates, but also shifts in or against the direction of arrow a. This displacement movement is transmitted via the transmission pin 15 and the transmission lever 16 to the ink knife 18, so that, for example, when the ink zone adjusting pin 10 moves in the direction of arrow a, there is a reduction in the gap between the ink knife 18 and the roller 19.

Infolge der Wirkung der Feder 23 hält bei dieser Einstellbewegung des Farbzonenstellstiftes 10 der Meßwertaufnehmer 25 über das Meßwertübertragungsglied 20 den Meßstift 14 in Anlage am Übertragungsstift 15.As a result of the action of the spring 23, during this adjustment movement of the ink zone setting pin 10, the sensor 25 holds the measuring pin 14 in contact with the transmission pin 15 via the measured value transmission element 20.

Sind beispielsweise die beiden dem Farbzonenstellstift 10 beiderseits benachbarten Farbzonenstellstifte auf die kleinstmögliche Spaltgröße zwischen dem Farbmesser 18 und der Walze 19 eingestellt und wird der Farbzonenstellstift 10 auf die größtmögliche Spaltbreite zwischen Farbmesser 18 und Walze 19 eingestellt, so bewegt sich der Farbzonenstellstift 10 in seine rechte Endlage auf der Zeichnung. Da das Farbmesser 18 infolge seiner begrenzten Elastizität dieser Einstellung nicht voll nachfolgen kann, ergibt sich ein Spiel zwischen dem Farbzonenstellstift 10 und dem Übertragungsstift 15. Der Farbzonenstellstift 10 nimmt somit eine Lage ein, die nicht der Einstellung des Farbmessers 18 entspricht. Die Feder 23 hält jedoch über den Meßwertaufnehmer 25 und das Meßwertübertragungsglied 20 den Meßstift 14 stets in Anlage am Übertragungsstift 15 und damit auch den Übertragungsstift 15 und den Übertragungshebei 16 in Anlage am Farbmesser 18. Infolgedessen nimmt der Meßstift 14 eine Lage ein, die genau der tatsächlichen Stellung des Farbmessers 18 entspricht.If, for example, the two ink zone adjustment pins adjacent to the ink zone adjustment pin 10 on both sides are set to the smallest possible gap size between the ink knife 18 and the roller 19 and the ink zone adjustment pin 10 is set to the largest possible gap width between the ink blade 18 and roller 19, the ink zone adjustment pin 10 moves into its right end position on the drawing. Since the ink knife 18 cannot fully follow this setting due to its limited elasticity, there is play between the ink zone setting pin 10 and the transfer pin 15. The ink zone setting pin 10 thus assumes a position which does not correspond to the setting of the ink meter 18. However, the spring 23 holds the measuring pin 14 in contact with the transmission pin 15 and thus also the transmission pin 15 and the transmission lever 16 in contact with the colorimeter 18 as a result of the measuring sensor 25 and the measured value transmission element 20. As a result, the measuring pin 14 assumes a position which is exactly that corresponds to the actual position of the color knife 18.

Wie die Beschreibung zeigt, ist die Erfindung nicht auf das dargestellte Ausführungsbeispiel beschränkt.As the description shows, the invention is not restricted to the exemplary embodiment shown.

Claims (5)

1. Device for adjusting the fountain blade of an inking device of a printing machine co-operating with a roller, with several inking zone adjusting pins arranged to be distributed over the width of the fountain blade and axially movable for blade adjustment, and an indicating device for the adjustment of the fountain blade, characterised in that each inking zone adjusting pin (10) has an axially running bore and the bore receives a measuring pin (14), against one end of which a measurement value transmission element (20) of the indicating device is guided under the effect of a spring (23), and the other end of which scans the position of the fountain blade (18).
2. Device according to claim 1, characterised in that the inking zone adjusting pin (10) is mounted inside a housing (1) and in the wall of the housing (1) turned towards the fountain blade, a transmission pin (15), in alignment with the inking zone adjusting pin (10), is guided in free longitudinally displaceable fashion, one face of which forms contact surfaces for the inking zone adjusting pin (10) and the measuring pin (14).
3. Device according to claim 1, characterised in that the measurement value transmission element (20) is swivellably mounted and is formed as a two-armed lever, on one arm of which the spring (23) acts and whose other arm is guided against the measuring pin (14).
4. Device according to claim 3, characterised in that the measurement value transmission element (20) carries an indicator (26) which together with a scale (27) that is fixed to the housing forms the indicating device.
5. Device according to claim 3, characterised in that a measurement value receiver (25) of an electrical indicating device mounted to be axially displaceable and being under the effect of the spring (23) is guided against one arm of the measurement value transmission element (20).
EP19800105023 1979-09-22 1980-08-23 Device for adjusting the fountain blade of an inking device of a printing machine Expired EP0025886B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2938455 1979-09-22
DE19792938455 DE2938455C2 (en) 1979-09-22 1979-09-22 Device for setting the ink knife of an inking unit of a printing machine

Publications (2)

Publication Number Publication Date
EP0025886A1 EP0025886A1 (en) 1981-04-01
EP0025886B1 true EP0025886B1 (en) 1983-04-13

Family

ID=6081619

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800105023 Expired EP0025886B1 (en) 1979-09-22 1980-08-23 Device for adjusting the fountain blade of an inking device of a printing machine

Country Status (3)

Country Link
EP (1) EP0025886B1 (en)
JP (1) JPS5677150A (en)
DE (1) DE2938455C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076463A (en) * 1998-03-13 2000-06-20 Heidelberger Druckmaschinen Ag Ink metering device and method of metering ink

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE432036C (en) * 1924-08-20 1926-07-21 Bohn & Herber Maschinenfabrik Device for pressing the ink knife onto the ink fountain roller in printing machines
CA979283A (en) * 1971-01-04 1975-12-09 James N. Crum Ink fountain blade setting display
DE7535914U (en) * 1975-11-12 1979-07-12 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach DOSING DEVICE ON A PAINT BOX
US4126091A (en) * 1976-12-21 1978-11-21 Cohen Abraham N Fountain blade and apparatus for calibrating the same
DE7730668U1 (en) * 1977-10-04 1978-01-12 Maschf Augsburg Nuernberg Ag ADJUSTING DEVICE FOR THE COLOR KNIFE OF A PRINTING MACHINE

Also Published As

Publication number Publication date
JPH0225333B2 (en) 1990-06-01
JPS5677150A (en) 1981-06-25
DE2938455A1 (en) 1981-03-26
DE2938455C2 (en) 1981-12-17
EP0025886A1 (en) 1981-04-01

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