EP0047505B1 - Method and device for adjusting ink proportioning ink zone elements in printing machines - Google Patents

Method and device for adjusting ink proportioning ink zone elements in printing machines Download PDF

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Publication number
EP0047505B1
EP0047505B1 EP19810106930 EP81106930A EP0047505B1 EP 0047505 B1 EP0047505 B1 EP 0047505B1 EP 19810106930 EP19810106930 EP 19810106930 EP 81106930 A EP81106930 A EP 81106930A EP 0047505 B1 EP0047505 B1 EP 0047505B1
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EP
European Patent Office
Prior art keywords
ink
proportioning
adjustment
amount
drive
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Expired
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EP19810106930
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German (de)
French (fr)
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EP0047505A2 (en
EP0047505A3 (en
Inventor
Erich Georg Wieland
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Koenig and Bauer AG
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Koenig and Bauer AG
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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
    • B41F31/02—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 method and a device for setting ink zone-wide ink metering elements according to the preamble of claims 1 and 4.
  • the invention has for its object to provide a method and a device with which it is possible to set a precise position of the ink metering elements despite playful drive.
  • the advantages of the invention are in particular that, despite play in the drive train for a color metering element, a very precise setting of the color metering elements is possible.
  • a simple position indicator for the ink metering elements can be created by balancing the steps with which the stepper motors are acted on.
  • Drives can be used to adjust the ink metering elements, which are not subject to high mechanical accuracy requirements and which are therefore very inexpensive. This is all the more important because a separate drive is required for each color metering element. It is also not necessary to know exactly the play in the drive elements in order to be able to carry out an exact adjustment of the ink metering elements in both directions. Match compensation can be carried out easily. The play compensation can also be easily adapted to progressive wear.
  • a driven ink fountain roller 2 is immersed in an ink fountain 1 of a rotary printing press.
  • a plurality of swiveling ink metering elements 3 are arranged in close proximity to one another in a known manner.
  • the ink metering elements 3 can be pivoted about a pivoting edge 4 of an ink fountain base 6 of the ink fountain 1.
  • the swivel arm 7 In its lower part 8, the swivel arm 7 is provided with an open control groove 9, which has two vertical control surfaces 10, 15.
  • the gearwheel 11 is positively or non-positively connected to a pinion 14 of a stepping motor 16 which can be operated with a reversal of the direction of rotation.
  • the drive for the color metering elements 3 each having a color metering edge 21 is not free of play.
  • Each of the drive elements 9, 12, 11, 13, 14 for the ink metering elements 3 can have a different game, the values of which add up to an overall game «a».
  • the size of the total play «a is determined and converted into adjustment steps of the stepper motor 16, whereby it is defined that an adjustment step is a process in which a motor shaft of a stepper motor 16 rotates by a precisely defined step angle (clockwise and counterclockwise rotation).
  • the ink metering element 3 Due to the pressure that a printing ink exerts in the ink fountain 1 due to its weight or when it is transported through an ink gap “b”, which is formed by the ink metering edge 21 and a circumference of the ink fountain roller 2, the ink metering element 3 is always in the same direction “ A »pivoted about the pivoting edge 4 (in the example clockwise, Fig. 1). That is, a right control surface 15 of the control groove 9 in the swivel arm 7 rests on the control roller 12.
  • the stepping motor 16 must have a number of Run "c" adjustment steps in a "minus direction", e.g. B. clockwise.
  • the pivot arm 7 is pivoted counterclockwise by means of the control roller 12. Compensation for the drive play in this direction is not necessary because the forces acting on the ink metering element 3 and thus on the swivel arm 7 via the printing ink in the ink fountain 1, the right control surface 15 of the control groove 9 is constantly pressed against the control roller 12.
  • the stepping motor 16 must have a number of « d »Run adjustment steps in a « plus direction » e.g. B. counterclockwise.
  • the pivot arm 7 is pivoted clockwise around the pivot edge 4 by means of the control roller 12. Because forces act on the ink in the ink fountain 1 on the ink metering element 3 and thus on the swivel arm 7, the right control surface 15 of the control groove 9 is pressed against the control roller 12.
  • control roller 12 does not have to run against the forces acting on the printing ink in the ink fountain 1 when the ink gap “b is enlarged, a play compensation must be carried out in this operating direction (A), with the transmission 9, 10, 15, 11, 13, 14 for the ink metering element 3, the stepper motor 16 covers a number of “a” adjustment steps in the “plus direction”.
  • the stepping motor 16 rotates in the opposite direction and resets the preselected amount “c” in the form of “c” adjustment steps without play compensation “a” and additional adjustment steps “z”.
  • the ink metering element 3 is always adjusted in the inventive direction from the same direction, ie from the same flank in the gear 9, 10, 15, 11, 13, 14. This will be explained with reference to FIG. 2.
  • the ink metering element 3 should be adjusted in the direction of “reducing the ink gap” by the number of “d” adjustment steps from a position “L”.
  • the control roller 12 lies in the starting position “L” on the right control surface 15 of the control groove 9.
  • the control roller 12 presses against the right control surface 15 of the control groove 9, then pivots the pivot arm 7 with the ink metering element 3 by «c» adjustment steps in the direction of «reducing the color gap», ie counterclockwise, to a position «M» which corresponds exactly to the desired adjustment value «c».
  • the control roller 12 also bears against the right control surface 15 of the control groove 9.
  • the ink metering element 3 is now to be pivoted from the position “M” by an amount “d” (it corresponds to the number “d” adjustment steps) in the direction “enlarge the color gap”.
  • Each of the ink metering elements 3 is adjusted by at least this amount ag when the ink metering elements 3 are adjusted counter to the direction of rotation “A of the ink fountain roller 2, or plus the additional amount“ z ”.
  • the play compensation can also be easily adapted to the wear of the components such as gears 11, 13, 14 and guides 10, 15 by adjusting the values for “a” or “a + z from time to time.

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

Description

Die Erfindung betrifft ein Verfahren und eine Einrichtung zum Einstellen von farbzonenbreiten Farbdosierelementen gemäß dem Oberbegriff der Ansprüche 1 und 4.The invention relates to a method and a device for setting ink zone-wide ink metering elements according to the preamble of claims 1 and 4.

Es ist bekannt, farbzonenbreite Farbdosierelemente mittels Elektromotoren einzustellen (DE-OS-2 814 889). Das Spiel zwischen Elektromotor und Farbdosierelement in der vorgeschlagenen Einrichtung stört nicht, weil bei dieser Einrichtung die Stellung der Farbdosierelemente nicht angezeigt wird.It is known to set ink metering elements with ink zone widths by means of electric motors (DE-OS-2 814 889). The play between the electric motor and the color metering element in the proposed device does not interfere because the position of the color metering elements is not displayed in this device.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Einrichtung zu schaffen, mit denen es ermöglicht wird, trotz spielbehafteten Antriebs eine genaue Position der Farbdosierelemente einzustellen.The invention has for its object to provide a method and a device with which it is possible to set a precise position of the ink metering elements despite playful drive.

Die Vorteile der Erfindung liegen insbesondere darin, daß trotz Spiel im Antriebszug für ein Farbdosierelement eine sehr genaue Einstellung der Farbdosierelemente möglich ist. In Verbindung mit Schrittmotoren als Antriebe für die einzelnen Farbdosierelemente läßt sich eine einfache Stellungsanzeige für die Farbdosierelemente schaffen, indem die Schritte, mit denen die Schrittmotoren beaufschlagt werden, aufsaldiert werden. Es können Antriebe zur Verstellung der Farbdosierelemente verwendet werden, an die keine hohen mechanischen Genauigkeitsanforderungen gestellt werden, und die daher sehr preiswert sind. Das fällt um so mehr ins Gewicht, weil für jedes Farbdosierelement ein eigener Antrieb benötigt wird. Es ist auch nicht nötig, das Spiel in den Antriebselementen genau zu kennen, um trotzdem eine exakte Verstellung der Farbdosierelemente in beiden Richtungen durchführen zu können. Ein Spielausgleich kann leicht durchgeführt werden. Auch läßt sich der Spielausgleich einfach an einen fortschreitenden Verschleiß anpassen.The advantages of the invention are in particular that, despite play in the drive train for a color metering element, a very precise setting of the color metering elements is possible. In conjunction with stepper motors as drives for the individual ink metering elements, a simple position indicator for the ink metering elements can be created by balancing the steps with which the stepper motors are acted on. Drives can be used to adjust the ink metering elements, which are not subject to high mechanical accuracy requirements and which are therefore very inexpensive. This is all the more important because a separate drive is required for each color metering element. It is also not necessary to know exactly the play in the drive elements in order to be able to carry out an exact adjustment of the ink metering elements in both directions. Match compensation can be carried out easily. The play compensation can also be easily adapted to progressive wear.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen

  • Figur 1 eine schematische Darstellung eines Farbkastens mit einem verschwenkbaren Farbdosierelement,
  • Figur 2 eine schematische Darstellung der Verstellvorgänge für ein Farbdosierelement.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it
  • FIG. 1 shows a schematic illustration of a paint box with a pivotable paint metering element,
  • Figure 2 is a schematic representation of the adjustment processes for a color metering element.

In einen Farbkasten 1 einer Rotationsdruckmaschine taucht eine angetriebene Farbkastenwalze 2 ein. Zur zonenweisen Farbdickeneinstellung sind in bekannter Weise eine Mehrzahl verschwenkbarer Farbdosierelemente 3 dicht an dicht nebeneinander angeordnet. Die Farbdosierelemente 3 sind um eine Verschwenkkante 4 eines Farbkastenbodens 6 des Farbkastens 1 verschwenkbar. Zum Antrieb der Farbdosierelemente 3 dient ein Verschwenkarm 7, der jeweils mit dem Farbdosierelement 3 formschlüssig verbunden ist. In seinem unteren Teil 8 ist der Verschwenkarm 7 mit einer offenen Steuernut 9, die zwei vertikale Steuerflächen 10, 15 aufweist, versehen. In die Steuernut 9 taucht eine exzentrisch an einem Zahnrad 11 angeordnete Steuerrolle 12 ein. Über eine Anzahl Zahnräder 13 ist das Zahnrad 11 form- oder kraftschlüssig mit einem Ritzel 14 eines mit Drehrichtungsumkehr betreibbaren Schrittmotors 16 verbunden.A driven ink fountain roller 2 is immersed in an ink fountain 1 of a rotary printing press. For zone-by-zone ink thickness adjustment, a plurality of swiveling ink metering elements 3 are arranged in close proximity to one another in a known manner. The ink metering elements 3 can be pivoted about a pivoting edge 4 of an ink fountain base 6 of the ink fountain 1. A swivel arm 7, which is connected to the ink metering element 3 in a form-fitting manner, is used to drive the ink metering elements 3. In its lower part 8, the swivel arm 7 is provided with an open control groove 9, which has two vertical control surfaces 10, 15. A control roller 12, which is arranged eccentrically on a gearwheel 11, dips into the control groove 9. Via a number of gearwheels 13, the gearwheel 11 is positively or non-positively connected to a pinion 14 of a stepping motor 16 which can be operated with a reversal of the direction of rotation.

Der Antrieb für die jeweils eine Farbdosierkante 21 aufweisenden Farbdosierelemente 3 ist nicht spielfrei. Jedes der Antriebselemente 9, 12, 11, 13, 14 für die Farbdosierelemente 3 kann ein unterschiedliches Spiel aufweisen, dessen Werte sich zu einem Gesamtspiel « a » addieren. Die Größe des Gesamtspiels « a wird ermittelt und in Verstellschritte des Schrittmotors 16 umgerechnet, wobei definiert wird, daß ein Verstellschritt ein Vorgang ist, bei dem sich eine Motorwelle eines Schrittmotors 16 um einen genau festgelegten Schrittwinkel verdreht (Rechtslauf und Linkslauf).The drive for the color metering elements 3 each having a color metering edge 21 is not free of play. Each of the drive elements 9, 12, 11, 13, 14 for the ink metering elements 3 can have a different game, the values of which add up to an overall game «a». The size of the total play «a is determined and converted into adjustment steps of the stepper motor 16, whereby it is defined that an adjustment step is a process in which a motor shaft of a stepper motor 16 rotates by a precisely defined step angle (clockwise and counterclockwise rotation).

Zur Vereinfachung wird das nachfolgende Verstellverfahren nur für ein Farbdosierelement 3 des Farbkastens 1 beschrieben.To simplify matters, the following adjustment method is only described for one ink metering element 3 of the ink fountain 1.

Durch den Druck, den eine Druckfarbe im Farbkasten 1 durch ihr Gewicht oder bei ihrem Transport durch einen Farbspalt « b », der durch die Farbdosierkante 21 und einen Umfang der Farbkastenwalze 2 gebildet wird, ausübt, wird das Farbdosierelement 3 immer in die gleiche Richtung « A » um die Verschwenkkante 4 verschwenkt (im Beispiel im Uhrzeigersinn, Fig. 1). Das heißt, eine rechte Steuerfläche 15 der Steuernut 9 im Verschwenkarm 7 liegt an der Steuerrolle 12 an.Due to the pressure that a printing ink exerts in the ink fountain 1 due to its weight or when it is transported through an ink gap “b”, which is formed by the ink metering edge 21 and a circumference of the ink fountain roller 2, the ink metering element 3 is always in the same direction “ A »pivoted about the pivoting edge 4 (in the example clockwise, Fig. 1). That is, a right control surface 15 of the control groove 9 in the swivel arm 7 rests on the control roller 12.

Die Anzahl der Verstellschritte «a», die zum Ausgleich des gesamten Spiels « a » im Antrieb für das Farbdosierelement 3 notwendig sind, wird durch praktischen Versuch ermittelt oder geschätzt. Es ist jedoch lediglich notwendig, einen Wert « a » anzunehmen, der sicher größer ist als das Gesamtspiel « a ». In der Praxis wird man natürlich bestrebt sein, einen möglichst genauen Wert zu ermitteln, um die Verstellzeiten so klein wie möglich zu halten.The number of adjustment steps “a” that are necessary to compensate for the entire play “a” in the drive for the ink metering element 3 is determined or estimated by practical experiment. However, it is only necessary to assume a value “a” that is certainly greater than the total game “a”. In practice, efforts will of course be made to determine the most accurate possible value in order to keep the adjustment times as short as possible.

Wird der Verschwenkarm 7 mit dem Farbdosierelement 3 um die Vetschwenkkante 4 im Uhrzeigersinn (A) verschwenkt, so wird ein Farbspalt « b » vergrößert, d. h. ein Farbfilm auf der Farbkastenwalze 2 wird dicker. Beim Verschwenken des Farbdosierelementes 3 entgegen dem Uhrzeigersinn (B) wird der Farbspalt « b verkleinert, d. h. der Farbfilm auf der Farbkastenwalze 2 wird dünner. Soll nun der Farbspalt « b » zwischen dem Farbdosierelement 3 und der Farbkastenwalze 2 um einen Betrag « c » verkleinert werden, so muß wegen der Untersetzung des Getriebes 11, 13, 14 und der des Farbdosierelementes 3 zum Verschwenkarm 7 der Schrittmotor 16 eine Anzahl von « c » Verstellschritten in eine « Minus-Richtung » laufen, z. B. im Rechtslauf. Hierbei wird der Verschwenkarm 7 entgegen dem Uhrzeigersinn mittels der Steuerrolle 12 verschwenkt. Eine Kompensation des Antriebsspiels ist in dieser Richtung nicht notwendig, weil durch die Kräfte, die über die Druckfarbe im Farbkasten 1 auf Farbdosierelement 3 und damit auf Verschwenkarm 7 wirken, die rechte Steuerfläche 15 der Steuernut 9 ständig gegen die Steuerrolle 12 gedrückt wird.If the swivel arm 7 with the ink metering element 3 is swiveled clockwise (A) around the swivel edge 4, an ink gap “b” is enlarged, ie an ink film on the ink fountain roller 2 becomes thicker. When the ink metering element 3 is pivoted counterclockwise (B), the ink gap «b is reduced, ie the ink film on the ink fountain roller 2 becomes thinner. If the ink gap "b" between the ink metering element 3 and the ink fountain roller 2 is to be reduced by an amount "c", then because of the reduction of the gear 11, 13, 14 and that of the ink metering element 3 to the swivel arm 7, the stepping motor 16 must have a number of Run "c" adjustment steps in a "minus direction", e.g. B. clockwise. Here, the pivot arm 7 is pivoted counterclockwise by means of the control roller 12. Compensation for the drive play in this direction is not necessary because the forces acting on the ink metering element 3 and thus on the swivel arm 7 via the printing ink in the ink fountain 1, the right control surface 15 of the control groove 9 is constantly pressed against the control roller 12.

Soll der Farbspalt « b zwischen dem Farbdosierelement 3 und der Farbkastenwalze 2 um einen Betrag « d » vergrößert werden, so muß wegen der Untersetzung des Getriebes 11, 13, 14 und der des Farbdosierelementes 3 zum Verschwenkarm 7 der Schrittmotor 16 eine Anzahl von « d » Verstellschritten in eine « Plus-Richtung » laufen, z. B. im Linkslauf. Hierbei wird der Verschwenkarm 7 im Uhrzeigersinn um die Verschwenkkante 4 mittels der Steuerrolle 12 verschwenkt. Weil Kräfte über die Druckfarbe im Farbkasten 1 auf Farbdosierelement 3 und damit auf Verschwenkarm 7 wirken, wird die rechte Steuerfläche 15 der Steuernut 9 an die Steuerrolle 12 gedrückt. Da jedoch bei einer Vergrößerung des Farbspaltes « b die Steuerrolle 12 nicht gegen die über die Druckfarbe im Farbkasten 1 wirkenden Kräfte anlaufen muß, muß in dieser Betriebsrichtung (A) ein Spielausgleich durchgeführt werden, wobei zum Ausgleich des gesamten Spiels « a des Getriebes 9, 10, 15, 11, 13, 14 für das Farbdosierelement 3 der Schrittmotor 16 eine Anzahl « a » Versteilschritte in die « Plus-Richtung » zurücklegt.If the ink gap «b between the ink metering element 3 and the ink fountain roller 2 is to be increased by an amount« d », then because of the reduction of the gear 11, 13, 14 and that of the ink metering element 3 to the swivel arm 7, the stepping motor 16 must have a number of« d »Run adjustment steps in a« plus direction », e.g. B. counterclockwise. Here, the pivot arm 7 is pivoted clockwise around the pivot edge 4 by means of the control roller 12. Because forces act on the ink in the ink fountain 1 on the ink metering element 3 and thus on the swivel arm 7, the right control surface 15 of the control groove 9 is pressed against the control roller 12. However, since the control roller 12 does not have to run against the forces acting on the printing ink in the ink fountain 1 when the ink gap “b is enlarged, a play compensation must be carried out in this operating direction (A), with the transmission 9, 10, 15, 11, 13, 14 for the ink metering element 3, the stepper motor 16 covers a number of “a” adjustment steps in the “plus direction”.

Bei einer gewünschten Vergrößerung des Farbspaltes « b » um den Betrag « d » wird wie folgt vorgegangen :

  • Vorwahl des gewünschten Verstellwertes « d » für das Farbdosierelement 3 in Form der Anzahl « d »-Verstellschritte. Über einen Rechnerteil in einem Mikroprozessor wird zu diesem Verstellwert « d » mindestens der Wert « a » für den Spielausgleich plus gegebenenfalls eine Anzahl Zusatz-Verstellschritte « z » (mindestens jedoch ein Verstellschritt) addiert. Diese Anzahl « d + a » bzw. « d + a + z » von Verstellschritten führt der Schrittmotor 16, angesteuert von einer an sich bekannten Elektroniksteuerkarte 5, in « Plus-Verstellrichtung » durch. Anschließend läuft der Schrittmotor 16 die Anzahl « a bzw. « a + z Verstellschritte, jedoch entgegen der ursprünglichen Verstellrichtung, zurück.
If the color gap «b» is enlarged by the amount «d», proceed as follows:
  • Preselection of the desired adjustment value «d» for the color metering element 3 in the form of the number of «d» adjustment steps. Via a computer part in a microprocessor, at least the value "a" for game compensation plus a number of additional adjustment steps "z" (but at least one adjustment step) is added to this adjustment value "d". This number “d + a” or “d + a + z” of adjustment steps is carried out by the stepper motor 16, controlled by an electronic control card 5 known per se, in the “plus adjustment direction”. The stepping motor 16 then runs back the number “a or“ a + z adjustment steps, but counter to the original adjustment direction.

Soll anschließend eine Verstellung in Richtung « Farbspalt verkleinern durchgeführt werden, so dreht der Schrittmotor 16 in entgegengesetzter Richtung und stellt ohne Spielausgleich « a » und Zusatzverstellschritte « z » den vorgewählten Betrag « c » in Form von « c » Verstellschritten zurück.If an adjustment in the direction “reduce the color gap” is then to be carried out, the stepping motor 16 rotates in the opposite direction and resets the preselected amount “c” in the form of “c” adjustment steps without play compensation “a” and additional adjustment steps “z”.

Wie auch in Fig. 2 dargestellt, erfolgt die Verstellung des Farbdosierelementes 3 in erfinderischer Weise immer von der gleichen Richtung aus, also von der gleichen Flanke im Getriebe 9, 10, 15, 11, 13, 14 her. Dieses sei anhand von Fig. 2 erläutert.As also shown in FIG. 2, the ink metering element 3 is always adjusted in the inventive direction from the same direction, ie from the same flank in the gear 9, 10, 15, 11, 13, 14. This will be explained with reference to FIG. 2.

Das Farbdosierelement 3 soll in Richtung « Farbspalt verkleinern » um die Anzahl von « d » Verstellschritten aus einer Position « L heraus verstellt werden. Wie Fig. 2 zeigt, liegt die Steuerrolle 12 in der Ausgangsposition « L » an der rechten Steuerfläche 15 der Steuernut 9. In dieser Lage drückt die Steuerrolle 12 gegen die rechte Steuerfläche 15 der Steuernut 9, verschwenkt dann den Verschwenkarm 7 mit dem Farbdosierelement 3 um « c » Verstellschritte in Richtung « Farbspalt verkleinern », also entgegen dem Uhrzeigersinn, in eine Position « M », welche genau dem gewünschten Verstellwert « c » entspricht. Auch in dieser Position « M » liegt die Steuerrolle 12 an der rechten Steuerfläche 15 der Steuernut 9 an.The ink metering element 3 should be adjusted in the direction of “reducing the ink gap” by the number of “d” adjustment steps from a position “L”. As shown in FIG. 2, the control roller 12 lies in the starting position “L” on the right control surface 15 of the control groove 9. In this position, the control roller 12 presses against the right control surface 15 of the control groove 9, then pivots the pivot arm 7 with the ink metering element 3 by «c» adjustment steps in the direction of «reducing the color gap», ie counterclockwise, to a position «M» which corresponds exactly to the desired adjustment value «c». In this position “M”, the control roller 12 also bears against the right control surface 15 of the control groove 9.

Aus der Position « M » soll nun das Farbdosierelement 3 um einen Betrag « d » (er entspricht der Anzahl « d » Verstellschritten) in Richtung « Farbspalt vergrößern verschwenkt werden.The ink metering element 3 is now to be pivoted from the position “M” by an amount “d” (it corresponds to the number “d” adjustment steps) in the direction “enlarge the color gap”.

Aus dieser Position « M », in der die Steuerrolle 12 an der rechten Steuerfläche 15 der Steuernut 9 anliegt, überwinden der Schrittmotor 16 und die Steuerrolle 12 zuerst das Spiel des gesamten Getriebes 11, 13, 14 und das zwischen beiden Steuerflächen 10, 15 der Steuernut 9 in der Gesamtgröße von « a » Verstellschritten, bevor die Steuerrolle 12 an der linken Steuerfläche 10 der Steuernut 9 anliegt. Aus dieser Lage an der linken Steuerfläche 10 verschwenkt die Steuerrolle 12 dann die Steuernut 9, und damit Verschwenkarm 7 mit Farbdosierelement 3, entgegen dem Uhrzeigersinn bis in eine vorgewählte Position « N », d. h. der Schrittmotor 16 hat die notwendigen Verstellschritte « d für den Verstellweg « d », die Verstellschritte « a für den Spielausgleich « a », und bei entsprechender Beaufschlagung auch die Zusatzschritte « z » für den Zusatzverstellweg « z » zugestellt.From this position «M», in which the control roller 12 rests on the right control surface 15 of the control groove 9, the stepping motor 16 and the control roller 12 first overcome the play of the entire transmission 11, 13, 14 and that between the two control surfaces 10, 15 of the Control groove 9 in the total size of “a” adjustment steps before the control roller 12 rests on the left control surface 10 of the control groove 9. From this position on the left control surface 10, the control roller 12 then pivots the control groove 9, and thus the pivot arm 7 with the color metering element 3, counterclockwise into a preselected position “N”, ie. H. The stepping motor 16 has delivered the necessary adjustment steps «d for the adjustment path« d », the adjustment steps« a for the play compensation «a», and, if applied accordingly, also the additional steps «z» for the additional adjustment path «z».

In dieser Position « N » angelangt, wird der Schrittmotor 16 automatisch, durch entsprechende Programmierung des Mikroprozessors der Elektroniksteuerkarte 5, und damit die Steuerrolle 12 mit einer Anzahl von Verstellschritten entgegengesetzter Drehrichtung beaufschlagt und zwar:

  • Mit der Verstellschritte-Anzahl « a », die dem Gesamtspielweg « a entspricht. Und - wenn vorher beaufschlagt - der Anzahl der Zuschlagschritte « z ». Die Steuerrolle 12 wechselt dabei von der linken Steuerfläche 10 an die rechte Steuerfläche 15 und bringt Steuernut 9, Verschwenkarm 7 und Farbdosierelement 3 in nunmehr entgegengesetzer Richtung in eine endgültige Position « P ». Aus dieser ihrer Lage an der rechten Steuerfläche 15 kann wieder eine in ihrer Größe vorwählbare Verstellung « c » oder « d » erfolgen. Die Steuerrolle 12 liegt auch in dieser Position « P » an der rechten Steuerfläche 15 an. Aus Fig. 2 entnehmbar, ergibt die Strecke MN minus NP = PM dann den gewünschten Verstellweg « d ».
Arrived in this position “N”, the stepping motor 16 is automatically acted upon by appropriate programming of the microprocessor of the electronic control card 5, and thus the control roller 12, with a number of adjustment steps in opposite directions of rotation, namely:
  • With the number of adjustment steps «a», which corresponds to the total play path «a. And - if applied beforehand - the number of increments «z». The control roller 12 changes from the left control surface 10 to the right control surface 15 and brings the control groove 9, pivot arm 7 and ink metering element 3 in the opposite direction to a final position “P”. From this position on the right control surface 15, a preselectable size “c” or “d” can be made. The control roller 12 is also in this position "P" on the right control surface 15. 2, the distance MN minus NP = PM then gives the desired adjustment path “d”.

Es versteht sich von selbst, daß mechanische oder elektronische Sperren vorgesehen sind, um den Verstellweg der Farbdosierelemente 3 in den Endstellungen zu stoppen, um nicht eine Farbwalzenoberfläche 20 zu beschädigen.It goes without saying that mechanical or electronic locks are provided in order to stop the adjustment path of the ink metering elements 3 in the end positions so as not to damage an ink roller surface 20.

In erfinderischer Weise braucht nicht für jedes Farbdosierelement 3 sein « spezifisches » Gesamtspiel « a getrennt zugestellt werden. Es genügt, aus einer Farbdosierelementenreihe 3-3 des Farbkastens 1 denjenigen Antrieb 9, 10, 15, 12, 13, 14 zu ermitteln, der das größte Gesamtspiel ag aufweist.In an inventive manner, it is not necessary for its “specific” total play “a to be delivered separately for each color metering element 3. It it suffices to determine the drive 9, 10, 15, 12, 13, 14 that has the greatest overall play ag from a row of ink metering elements 3-3 of the ink fountain 1.

Um mindestens diesen Betrag ag wird bei Verstellung der Farbdosierelemente 3 entgegen der Drehrichtung « A der Farbkastenwalze 2 jedes der Farbdosierelemente 3 verstellt, bzw. plus dem Zusatzbetrag « z ».Each of the ink metering elements 3 is adjusted by at least this amount ag when the ink metering elements 3 are adjusted counter to the direction of rotation “A of the ink fountain roller 2, or plus the additional amount“ z ”.

Diese oben beschriebenen Verfahren und Einrichtung zur Spielausschaltung bei Farbdosierelementen 3, die über einen Verschwenkmechanismus angetrieben werden, lassen sich natürlich unter Beibehaltung der Grundidee - nämlich in einer Verstellrichtung über die gewünschte Stellposition mit mindestens einem Betrag, der dem Spiel entspricht, hinauszufahren und anschließend um diesen Betrag wieder zurückzufahren - auch auf Antriebe von Schiebern zur Farbschichtdickensteuerung bzw. -regelung usw. anwenden.The above-described method and device for switching off the game in the case of ink metering elements 3, which are driven by a pivoting mechanism, can of course be maintained while maintaining the basic idea - namely in an adjustment direction beyond the desired position with at least an amount that corresponds to the game, and then by this To reduce the amount again - also apply to drives of slides for ink layer thickness control or regulation etc.

Auch läßt sich der Spielausgleich leicht an den Verschleiß der Bauelemente wie Zahnräder 11, 13, 14 und Führungen 10, 15 anpassen, indem die Werte für « a » bzw. « a + z von Zeit zu Zeit angepaßt werden.The play compensation can also be easily adapted to the wear of the components such as gears 11, 13, 14 and guides 10, 15 by adjusting the values for “a” or “a + z from time to time.

Claims (7)

1. A method for adjusting ink proportioning elements of ink zone width of an ink fountain by means of, for example, an electric motor in a printing machine, characterized in that at least at the end of a setting movement (M ; P) in an optional adjustment direction (A) of the ink proportioning element (3), the ink proportioning element (3) resp. an adjusting element (7, 9) connected to it without clearance is in each case, against a direction of play (a), brought into a position of contact (12,15) with a drive (12) rigidly secured to it, that in each case a subsequent adjustment operation (c ; d) is carried out from this position of contact (12, 15).
2. A method for adjusting ink proportioning elements of ink zone width of an ink fountain by means of, for example, an electric motor in a printing machine, characterized in that for a pivoting of the ink proportioning element (3) into an ink proportioning position (P) in relation to an ink fountain roller (2) against a direction of rotation (A) of the ink fountain roller (2), a drive (7) of the ink proportioning element (3) is initially adjusted by an amount (d + a) against the direction of rotation (A) of the ink fountain roller (2) into an intermediate position (N) resulting from a sum (d + a) of the amount of a desired adjustment path (OP = d) plus an an amount for a total play compensation path (PN = a), that subsequently the ink proportioning element (3) is brought into its final ink proportioning position (P) in that the drive (7) of the ink proportioning element (3) is adjusted back in the direction of rotation (A) of the ink fountain roller (2) by the amount of the total play compensation path (NP = a), that for a pivoting of the ink proportioning element (3) from a position (L) into a desired ink proportioning position (M) in the direction of rotation (A) of the ink fountain roller (2) the drive (7) of the ink proportioning element (3) is merely adjusted by the desired adjustment path (LM = c).
3. A method for adjusting ink proportioning elements of ink zone width of an ink fountain by means of, for example, an electric motor in a printing machine, characterized in that for a pivoting of the ink proportioning element (3) into an ink proportioning position (P) in relation to an ink fountain roller (2) against a direction of rotation (A) of the ink fountain roller (2), a drive (7) of the ink proportioning element (3) is initially adjusted by an amount (d + a + z) against the direction of rotation (A) of the ink fountain roller (2) into an intermediate position (N) resulting from a sum (d + a + z) of the amount of a desired adjustment path (OP = d), an amount for a total play compensation path (PN = a) and an additional amount (z), that subsequently the drive (7) of the ink proportioning element (3) is brought into its final ink proportioning position (P) in that the drive (7) of the ink proportioning element (3) is adjusted back in the direction of rotation (A) of the ink fountain roller (2) by the amount of the total play compensation path (NP = a) and the additional amount (z), that for a pivoting of the ink proportioning element (3) from a position (L) into a desired ink proportioning position (M) in the direction of rotation (A) of the ink fountain roller (2), the drive (7) of the ink proportioning element (3) is merely adjusted by the desired adjustment path (LM = c).
4. A device for adjusting a position of individually adjustable ink proportioning elements of ink zone width in relation to an ink fountain roller of an ink fountain by means of, for example, an electric motor in a printing machine, characterized in that a pre-adjustable resp. programmable electric control device (5) for controlling a drive means (16), for instance an electric motor each, is provided for each ink proportioning element (3), that each ink proportioning element (3) is connected to the drive means (16) via a gear (7, 8, 9, 10, 15, 12, 11, 13, 14), that each ink proportioning element (3) in an ink proportioning adjustment direction (B) is arranged in each case to be adjustable over and above a preselected ink proportioning adjustment amount (d) by a least an amount (a) corresponding to at least a maximum total play (a) of a drive (9, 10, 15, 12, 13, 14) for the ink proportioning element (3), initially in a direction of ink proportioning adjustment (B) and subsequently by a same amount (a) against the direction of ink proportioning adjustment (B).
5. A device for adjusting a position of individually adjustable ink proportioning elements of ink zone width in relation to an ink fountain roller of an ink fountain by means of, for example, an electric motor in a printing machine, characterized in that a pre-adjustable resp. programmable electric control device (5) for controlling a drive means (16), for instance an electric motor each, is provided for each ink proportioning element (3), that each ink proportioning element (3) is connected to the drive means (16) via a gear (7, 8, 9, 10, 15, 12, 11, 13, 14), that each ink proportioning element (3) in a direction of ink proportioning adjustment (B) is arranged in each case to be adjustable over and above a preselected ink proportioning adjustment amount (d) by a least an amount (a + z) which corresponds to a total play (a) of a drive (9, 10, 15, 12, 13, 14) for the ink proportioning element (3) plus an additional amount (z), initially in the direction of ink proportioning adjustment (B) and subsequently by a same amount (a + z) against the direction of ink proportioning adjustment (B).
6. A device for adjusting a position of individually adjustable, ink proportioning elements of ink zone width in relation to an ink fountain roller of an ink fountain by means of, for example, an electric motor in a printing machine, characterized in that a pre-adjustable resp. programmable electric control device (5) for controlling a drive (16) is provided for each ink proportioning element (3), that each ink proportioning element (3) is connected to the drive (16) via a gear (7, 8, 9, 10, 15, 12, 13, 14), that each ink proportioning element (3) of an ink fountain (1) is arranged in each case to be adjustable over and above a preselected ink proportioning adjustment amount (d) by a least an amount (a) which corresponds to a total play (a) of that drive (9, 10, 15, 12, 13, 14) of an ink proportioning element (3) with a largest total play (ag) of a row of ink proportioning elements (3-3) of an ink fountain (1), initially in the direction of ink proportioning adjustment (B) and subsequently by a same amount (a) against the direction of ink proportioning adjustment (B).
7. A device for adjusting a position of individually adjustable ink proportioning elements of ink zone width in relation to an ink fountain roller of an ink fountain by means of, for example, an electric motor in a printing machine, characterized in that a pre-adjustable resp. programmable electric control device (5) for controlling a drive means (16) is provided for each ink proportioning element (3), that each ink proportioning element (3) is connected to the drive means (16) via a gear (7, 8, 9, 10, 15, 12, 11, 13, 14), that each ink proportioning element (3) of an ink fountain (1) is arranged in each case to be adjustable over and above a preselected ink proportioning adjustment amount (d) by a least an amount (a + z), which corresponds to a total play (a) of that drive (9,10,15,12,13,14) of an ink proportioning element (3) with a largest total play (ag) of a row of ink proportioning elements (3-3) plus an additional amount (z) of an ink fountain (1), initially in the direction of ink proportioning adjustment (B) and subsequently by a same amount (a + z) against the direction of ink proportioning adjustment (B).
EP19810106930 1980-09-10 1981-09-04 Method and device for adjusting ink proportioning ink zone elements in printing machines Expired EP0047505B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803033994 DE3033994A1 (en) 1980-09-10 1980-09-10 METHOD AND DEVICE FOR ADJUSTING COLOR ZONE WIDTH COLOR DOSE ELEMENTS OF PRINTING MACHINES
DE3033994 1980-09-10

Publications (3)

Publication Number Publication Date
EP0047505A2 EP0047505A2 (en) 1982-03-17
EP0047505A3 EP0047505A3 (en) 1982-03-24
EP0047505B1 true EP0047505B1 (en) 1984-11-28

Family

ID=6111549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810106930 Expired EP0047505B1 (en) 1980-09-10 1981-09-04 Method and device for adjusting ink proportioning ink zone elements in printing machines

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EP (1) EP0047505B1 (en)
JP (1) JPS5780059A (en)
DE (1) DE3033994A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD210878B1 (en) * 1982-06-03 1990-04-25 Foerster Karl Heinz CONTROL FOR COLOR ZONE ADJUSTMENT
DE3424349C2 (en) * 1984-07-03 1995-05-04 Heidelberger Druckmasch Ag Device for detecting the position of an actuator of a printing press
JPS6369647A (en) * 1986-09-11 1988-03-29 J P Ii Kk Ink fountain arrangement of press
JPS6369648A (en) * 1986-09-11 1988-03-29 J P Ii Kk Ink fountain arrangement of press
EP1500193B1 (en) * 2002-04-26 2008-10-01 Thomson Licensing Tuner input filter with electronically adjustable response for adapting to antenna characteristic

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7228918U (en) * 1973-10-04 Maschinenfabrik Augsburg Nuernberg Ag Equipment on inking units of printing machines
DE1102181B (en) * 1955-11-26 1961-03-16 Koenig & Bauer Schnellpressfab Ink fountain on printing machines
US3055273A (en) * 1958-11-10 1962-09-25 Ind Controls Corp Anti-backlash devices
US3702587A (en) * 1970-10-12 1972-11-14 North American Rockwell Electronic control system for adjustment of ink fountain in a printing press
GB1316009A (en) * 1971-06-23 1973-05-09 Polygraph Leipzig Printing machine control arrangements
DE2714577C3 (en) * 1977-04-01 1980-02-28 M.A.N.-Roland Druckmaschinen Ag, 6050 Offenbach Device for adjusting the flow of ink on printing machine inking units
US4170177A (en) * 1977-04-07 1979-10-09 Toshiba Kikai Kabushiki Kaisha Printing machine inking device with plurality of cam levers
DE3033995C2 (en) * 1980-09-10 1984-11-22 Koenig & Bauer AG, 8700 Würzburg Device for maintaining the ease of movement of metering elements in ink fountains of printing machines

Also Published As

Publication number Publication date
DE3033994A1 (en) 1982-04-15
JPH0319066B2 (en) 1991-03-14
EP0047505A2 (en) 1982-03-17
DE3033994C2 (en) 1988-11-17
JPS5780059A (en) 1982-05-19
EP0047505A3 (en) 1982-03-24

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