EP0520305A1 - Cleaning device for inking systems in printing machines - Google Patents

Cleaning device for inking systems in printing machines Download PDF

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Publication number
EP0520305A1
EP0520305A1 EP92110183A EP92110183A EP0520305A1 EP 0520305 A1 EP0520305 A1 EP 0520305A1 EP 92110183 A EP92110183 A EP 92110183A EP 92110183 A EP92110183 A EP 92110183A EP 0520305 A1 EP0520305 A1 EP 0520305A1
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EP
European Patent Office
Prior art keywords
roller
washing device
polygon
housing
driven
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.)
Granted
Application number
EP92110183A
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German (de)
French (fr)
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EP0520305B1 (en
Inventor
Claus Dieter Barrois
Phillip Andreas Dieterich
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert AG
Koenig and Bauer AG
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Publication of EP0520305A1 publication Critical patent/EP0520305A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/04—Cleaning arrangements or devices for inking rollers

Definitions

  • the invention relates to a washing device for inking units in printing machines according to the preamble of patent claim 1.
  • a washing device for cleaning a rinsing inking unit in which nozzle pipes are arranged above and below the doctor blade in order to free the paint roller from paint or from ink residues.
  • the disadvantage here is that the doctor blade, seen in the axial direction, does not have the same contact pressure over the entire length, so that the doctor blade does not work evenly. For example, if too much liquid is supplied, the doctor blade will try to "float". When the doctor blade runs dry, scoring occurs on the roller to be cleaned.
  • the invention has for its object to provide a flawless and largely maintenance-free washing device for inking units in printing presses, which avoids the harmful side effects of the doctor blades with high cleanability.
  • the advantages achieved by the invention are, in particular, that even the last paint residues are completely removed from the ink roller to be cleaned, since doctoring is avoided.
  • the use of rotating parts avoids the harmful effects of the doctor blade in the event of the device running dry, such as scoring.
  • the washing facility is largely maintenance-free, since no squeegee blades can be freed from adhering paint residues.
  • the device can be attached universally to various driven friction rollers 3, as shown by these friction rollers 3 in FIG. 1.
  • the direction of rotation of the friction roller does not have to be taken into account here, since the driven rubber roller of the washing device is reversibly driven in the direction of rotation.
  • an inking unit of a printing press which has a plate cylinder 1, on which four application rollers 2 rest.
  • a distribution cylinder 3 is connected to two application rollers 2.
  • the two distribution cylinders 3 are connected to a third distribution cylinder 3 via two intermediate rollers 4.
  • Two further intermediate rollers 4 are connected to a naked cylinder 6, which in turn is connected to a ductor 8 via an ink lifter 7.
  • a dampening unit 9 is connected to an outer application roller 2.
  • the washing device according to the invention which is designated overall by 11, is in contact.
  • the cylinders, rollers and other devices shown in Fig. 1 are attached according to their function in bearings or holders of a machine frame, not shown.
  • the enlarged view of the washing device 11 according to the invention is shown in the rest position.
  • a housing 12 with an approximately U-shaped cross section and a lateral opening
  • two rollers are accommodated, a polygon roller 13 and a rubber roller 14.
  • Both rollers 13; 14 are mounted with their stub axles in the housing 12 and arranged side by side so that the outer surface of the polygon roller 13 penetrates into the outer surface of the rubber roller 14 in the contact area A.
  • the rubber roller 14 has a rubber coating with a hardness of max. 15 o Shore.
  • the polygon roller 13 is provided on its surface with a plastic coating. According to the representation according to FIG.
  • the polygon roller 13 has a plurality of distributed surfaces B on its circumference, which seen in the axial direction have a swirl, which makes both rollers 13; 14 results.
  • the rubber roller 14 is driven in a speed-adjustable manner in the arrow direction C by a motor, not shown.
  • the polygon roller 13 is driven by a drive, not shown, for example a toothed belt at the same speed, but in the opposite direction according to arrow direction D.
  • the drive can be designed so that the speed and thus the peripheral speed of the Polygon roller 13 is smaller or greater than the peripheral speed of the rubber roller 14.
  • the surface of the polygon roller 13 is in the tangential direction by means of nozzle bars 16; 17 arranged flat spray nozzles sprayable.
  • the jet direction of the flat jet nozzles runs in opposite directions.
  • the nozzle strips 16; 17 are fed by a cleaning agent supply 18.
  • a filter, a reservoir and a pump is switched on via lines not shown.
  • a bulkhead 21 Arranged in the interior of the housing 12 at the level of the axis of the polygon roller 13 is a bulkhead 21 which is roof-shaped in cross section and whose ridge 22 is level with the axes of both rollers 13; 14 is located. This results in a reduction in the distance E between the ridge 22 and the surface of the polygon roller 13.
  • the housing 12 is in the arrow direction F on guides 23; 24 displaceable, for example, by the piston 26 of a working cylinder, so that the washing device 11 comes into operative connection with the distribution cylinder 3 in the operating state.
  • Fig. 3 shows the detail X of FIG. 2 in an enlarged view.
  • the driven distribution cylinder 3 according to FIG. 2 rotates in the direction of arrow G, that is in the opposite direction to the direction of rotation C of the rubber roller 14 and, with its surfaces B, transports cleaning agent 28 from the Nozzle strips 17; 16 in the area H of the polygon roller 13.
  • the surfaces and edges of the polygon roller 13 penetrate into the surface of the rubber roller 14.
  • the ink layer 27 transferred from the distribution cylinder 3 and adhering to the rubber roller 14 is pushed into the contact area A against the edges of the polygon roller 13 as a result of the rubber roller 14 rotating in the direction of arrow C.
  • the ink layer 27 is mixed with the cleaning agent 28 supplied by the polygon roller 13.
  • This mixture 27; 28 ' is from the surface of the polygon roller 13 through the nozzle strips 17; 16 sprayed and passes through the detergent discharge 19 for filtration and the nozzle strips 16; 17 fed.
  • a storage container is also interposed, which, like the pump and the filtration, is also not shown.
  • Cleaning agent 28 is immediately removed again on the cleaned rubber roller 14 in the direction of arrow C as cleaning agent 28 ′′.
  • FIG. 4 shows a further embodiment variant according to FIG. 2.
  • a trough 29 filled with cleaning agent 28, which is connected at its bottom to a vibration generator 31 and into which the surface of the polygon roller 13 is immersed.
  • the vibration generator 31 rests on vibration isolators 32 which are connected to the bottom of the housing 12.
  • the vibration generator 31 works in the ultrasonic range and removes any color residues that may still be left on the polygon roller 13.
  • the tub 29 fills itself with cleaning agent 28 and ink residues 27, which are applied via the nozzle strips 16; 17 or fed via the polygon roller 13. The liquid in the tub 29 then overflows automatically and is returned to the cleaning circuit via the detergent discharge 19.

Landscapes

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

Abstract

The invention relates to a cleaning device (11) for inking systems in printing machines. The object of the invention is to provide a cleaning device which has no doctor blade, requires little servicing and has a high cleaning capability. According to the invention, this is effected in that the cleaning device is accommodated in a housing (12) in which there are a speed-controllable, driven rubber-coated cylinder (14) and a polygonal cylinder (13) which is driven in the opposite direction thereto, can be sprayed by means of jets (16, 17) and is operatively connected to the rubber-coated cylinder. The housing can be placed against the cylinder to be cleaned. Even the last ink residues are thus reliably removed without having to tolerate the harmful side effects of the doctor blades. <IMAGE>

Description

Die Erfindung betrifft eine Wascheinrichtung für Farbwerke bei Druckmaschinen gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a washing device for inking units in printing machines according to the preamble of patent claim 1.

Für die Reinigung von Farbwerken ist es bekannt, ein Rakelblatt an eine getriebene Farbwalze anzustellen und gleichzeitig Waschmittel auf eine solche Farbwalze aufzubringen, die am weitesten entfernt ist vom angestellten Rakelblatt.For cleaning inking units, it is known to place a doctor blade on a driven ink roller and at the same time apply detergent to such an ink roller which is furthest away from the doctor blade being used.

Es gibt weiterhin Bestrebungen, Waschvorrichtungen wartungsarm zu gestalten. So ist gemäß DE-AS 23 44 573 eine Waschvorrichtung zum Reinigen eines Spülfarbwerkes bekannt, bei welchem oberhalb und unterhalb des Rakelblattes Düsenrohre angeordnet sind, um die Auftragswalze von Farbe bzw. von Farbresten zu befreien. Nachteilig hierbei ist, daß das Rakelblatt, in axialer Richtung gesehen, nicht über die gesamte Länge den gleichen Anpreßdruck besitzt, so daß das Rakelblatt auch nicht gleichmäßig arbeitet. Beispielsweise wird das Rakelblatt bei der Zufuhr von zuviel Flüssigkeit versuchen, "Aufzuschwimmen". Bei Trockenlauf des Rakelblattes erfolgt eine Riefenbildung auf der zu reinigenden Walze.There are still efforts to make washing devices low-maintenance. Thus, according to DE-AS 23 44 573, a washing device for cleaning a rinsing inking unit is known, in which nozzle pipes are arranged above and below the doctor blade in order to free the paint roller from paint or from ink residues. The disadvantage here is that the doctor blade, seen in the axial direction, does not have the same contact pressure over the entire length, so that the doctor blade does not work evenly. For example, if too much liquid is supplied, the doctor blade will try to "float". When the doctor blade runs dry, scoring occurs on the roller to be cleaned.

Gemäß der DE-OS 31 09 630 versucht man einen gleichmäßigen Anpreßdruck des Rakelmessers dadurch zu erzielen, daß das Rakelblatt federnd gelagert ist. Die Rückstände von Farbe und Papierstaub auf einer zu reinigenden Walze sind jedoch mit einem Rakelblatt nicht vollständig entfernbar, da die Arbeitskante des Rakelmessers auch gleichzeitig eine Stirnfläche besitzt; d. h. das Rakelblatt besitzt keine Schneide. Dies hat zur Folge, daß am Ende des Reinigungsvorganges beim Entfernen oder Wegschwenken des Rakelblattes von der zu reinigenden Walze immer die Hälfte des letzten Rückstandes auf der Walzenoberfläche verbleibt.According to DE-OS 31 09 630 an attempt is made to achieve a uniform contact pressure of the doctor blade in that the doctor blade is spring-mounted. The residues of ink and paper dust on a roller to be cleaned cannot, however, be completely removed with a doctor blade, since the working edge of the doctor blade also has an end face at the same time; d. H. the doctor blade has no cutting edge. The result of this is that at the end of the cleaning process, when the doctor blade is removed or swung away from the roller to be cleaned, half of the last residue always remains on the roller surface.

Der Erfindung liegt die Aufgabe zugrunde, eine rakellose und weitestgehendst wartungsfreie Wascheinrichtung für Farbwerke bei Druckmaschinen zu schaffen, welche bei hoher Reinigungsfähigkeit die schädlichen Nebenwirkungen der Rakelblätter vermeidet.The invention has for its object to provide a flawless and largely maintenance-free washing device for inking units in printing presses, which avoids the harmful side effects of the doctor blades with high cleanability.

Diese Aufgabe wird erfindungsgemäß durch das Kennzeichen des Patentanspruches 1 gelöst.This object is achieved by the characterizing part of patent claim 1.

Die erzielten Vorteile durch die Erfindung bestehen insbesondere darin, daß auch die letzten Farbreste vollständig von der zu reinigenden Farbwalze entfernt werden, da ein Abrakeln vermieden wird. Durch die Verwendung von rotierenden Teilen werden die schädlichen Wirkungen des Rakelblattes bei einem möglichen Trockenlauf der Einrichtung, wie Riefenbildung, vermieden. Die Wascheinrichtung ist weitestgehendst wartungsfrei, da keine Rakelblätter von anhaftenden Farbresten zu befreien sind. Weiterhin ist die Einrichtung universell an verschiedene getriebene Reibwalzen 3 anbaubar, so wie diese Reibwalzen 3 in Fig. 1 dargestellt sind. Dabei muß die Drehrichtung der Reibwalze nicht berücksichtigt werden, da die angetriebene Gummiwalze der Wascheinrichtung drehrichtungsumkehrbar angetrieben ist.The advantages achieved by the invention are, in particular, that even the last paint residues are completely removed from the ink roller to be cleaned, since doctoring is avoided. The use of rotating parts avoids the harmful effects of the doctor blade in the event of the device running dry, such as scoring. The washing facility is largely maintenance-free, since no squeegee blades can be freed from adhering paint residues. Furthermore, the device can be attached universally to various driven friction rollers 3, as shown by these friction rollers 3 in FIG. 1. The direction of rotation of the friction roller does not have to be taken into account here, since the driven rubber roller of the washing device is reversibly driven in the direction of rotation.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. In der zugehörigen Zeichnung zeigen

Fig. 1
die schematische Seitenansicht eines Farbwerkes mit der Wascheinrichtung;
Fig. 2
die detaillierte Darstellung der Wascheinrichtung nach Fig. 1;
Fig. 3
die Einzelheit X nach Fig. 2;
Fig. 4
eine weitere Ausführungsvariante gemäß Fig. 2.
The invention will be explained in more detail using an exemplary embodiment. Show in the accompanying drawing
Fig. 1
the schematic side view of an inking unit with the washing device;
Fig. 2
the detailed representation of the washing device according to Fig. 1;
Fig. 3
the detail X of FIG. 2;
Fig. 4
a further embodiment variant according to FIG. 2.

Gemäß Fig. 1 ist ein Farbwerk einer Druckmaschine dargestellt, welches einen Plattenzylinder 1 aufweist, an welchem vier Auftragswalzen 2 anliegen. Mit zwei Auftragswalzen 2 steht jeweils ein Reibzylinder 3 in Verbindung. Die zwei Reibzylinder 3 sind über zwei Zwischenwalzen 4 mit einem dritten Reibzylinder 3 in Verbindung. Zwei weitere Zwischenwalzen 4 sind mit einem Nacktzylinder 6 verbunden, der wiederum seinerseits über einen Farbheber 7 mit einem Duktor 8 in Verbindung steht. An eine äußere Auftragswalze 2 ist ein Feuchtwerk 9 angeschlossen. Mit einer der beiden mit den Auftragswalzen 2 in Verbindung stehenden Reibzylindern 3 ist die erfindungsgemäße Wascheinrichtung, die insgesamt mit 11 bezeichnet ist, in Kontakt. Die in Fig. 1 dargestellten Zylinder, Walzen und anderen Einrichtungen sind gemäß ihrer Funktion in Lagern oder Halterungen eines nicht dargestellten Maschinengestells befestigt.1, an inking unit of a printing press is shown, which has a plate cylinder 1, on which four application rollers 2 rest. A distribution cylinder 3 is connected to two application rollers 2. The two distribution cylinders 3 are connected to a third distribution cylinder 3 via two intermediate rollers 4. Two further intermediate rollers 4 are connected to a naked cylinder 6, which in turn is connected to a ductor 8 via an ink lifter 7. A dampening unit 9 is connected to an outer application roller 2. With one of the two distribution cylinders 3 connected to the application rollers 2 the washing device according to the invention, which is designated overall by 11, is in contact. The cylinders, rollers and other devices shown in Fig. 1 are attached according to their function in bearings or holders of a machine frame, not shown.

Gemäß Fig. 2 ist die vergrößerte Darstellung der erfindungsgemäßen Wascheinrichtung 11 in Ruhestellung gezeigt. In einem Gehäuse 12 mit etwa U-förmigem Querschnitt und seitlicher Öffnung sind zwei Walzen untergebracht, eine Polygonwalze 13 und eine Gummiwalze 14. Beide Walzen 13; 14 sind mit ihren Achsstümpfen im Gehäuse 12 gelagert und so nebeneinander angeordnet, daß die Mantelfläche der Polygonwalze 13 in dem Kontaktbereich A in die Mantelfläche der Gummiwalze 14 eindringt. Die Gummiwalze 14 besitzt einen Gummiüberzug mit einer Härte von max. 15o Shore. Die Polygonwalze 13 ist an ihrer Oberfläche mit einem Kunststoffüberzug versehen. Die Polygonwalze 13 besitzt gemäß der Darstellung nach Fig. 2 an ihrem Umfang eine Vielzahl verteilter Flächen B, welche in axialer Richtung gesehen, einen Drall besitzen, was eine bessere Laufruhe beider Walzen 13; 14 zur Folge hat. Die Gummiwalze 14 ist durch einen nicht dargestellten Motor drehzahlregelbar in Pfeilrichtung C angetrieben. Gleichzeitig wird die Polygonwalze 13 über einen nicht dargestellten Antrieb, beispielsweise einem Zahnriemen mit gleicher Drehzahl, jedoch in entgegengesetzter Richtung gemäß Pfeilrichtung D angetrieben. Der Antrieb kann jedoch so ausgelegt sein, daß die Drehzahl und somit die Umfangsgeschwindigkeit der Polygonwalze 13 kleiner oder größer ist als die Umfangsgeschwindigkeit der Gummiwalze 14. Die Oberfläche der Polygonwalze 13 ist in tangentialer Richtung mittels sich in axialer Richtung erstreckender auf Düsenleisten 16; 17 angeordneten Flachstrahldüsen besprühbar. Die Strahlrichtung der Flachstrahldüsen verläuft gegensinnig. Die Düsenleisten 16; 17 werden durch eine Reinigungsmittelzuführung 18 gespeist. Der Ablauf des Waschmittels, vermischt mit Farbresten u. dgl. erfolgt an der tiefsten Stelle des Gehäuses 12 in einer Waschmittelabführung 19. Zwischen Waschmittelzuführung 18 und Waschmittelabführung 19 ist über nicht dargestellte Leitungen ein Filter, ein Vorratsbehälter und eine Pumpe eingeschaltet. Im Inneren des Gehäuses 12 ist in Höhe der Achse der Polygonwalze 13 eine im Querschnitt dachförmige Spritzwand 21 angeordnet, deren First 22 sich in Höhe der Achsen beider Walzen 13; 14 befindet. Dadurch ergibt sich eine Verringerung des Abstandes E zwischen dem First 22 und der Oberfläche der Polygonwalze 13. Das Gehäuse 12 ist in Pfeilrichtung F auf Führungen 23; 24 beispielsweise durch den Kolben 26 eines Arbeitszylinders verschiebbar, so daß die Wascheinrichtung 11 im Betriebszustand in Wirkverbindung kommt mit dem Reibzylinder 3.2, the enlarged view of the washing device 11 according to the invention is shown in the rest position. In a housing 12 with an approximately U-shaped cross section and a lateral opening, two rollers are accommodated, a polygon roller 13 and a rubber roller 14. Both rollers 13; 14 are mounted with their stub axles in the housing 12 and arranged side by side so that the outer surface of the polygon roller 13 penetrates into the outer surface of the rubber roller 14 in the contact area A. The rubber roller 14 has a rubber coating with a hardness of max. 15 o Shore. The polygon roller 13 is provided on its surface with a plastic coating. According to the representation according to FIG. 2, the polygon roller 13 has a plurality of distributed surfaces B on its circumference, which seen in the axial direction have a swirl, which makes both rollers 13; 14 results. The rubber roller 14 is driven in a speed-adjustable manner in the arrow direction C by a motor, not shown. At the same time, the polygon roller 13 is driven by a drive, not shown, for example a toothed belt at the same speed, but in the opposite direction according to arrow direction D. However, the drive can be designed so that the speed and thus the peripheral speed of the Polygon roller 13 is smaller or greater than the peripheral speed of the rubber roller 14. The surface of the polygon roller 13 is in the tangential direction by means of nozzle bars 16; 17 arranged flat spray nozzles sprayable. The jet direction of the flat jet nozzles runs in opposite directions. The nozzle strips 16; 17 are fed by a cleaning agent supply 18. The drain of the detergent, mixed with paint residues and. The like. At the deepest point of the housing 12 in a detergent discharge 19. Between the detergent feed 18 and detergent discharge 19, a filter, a reservoir and a pump is switched on via lines not shown. Arranged in the interior of the housing 12 at the level of the axis of the polygon roller 13 is a bulkhead 21 which is roof-shaped in cross section and whose ridge 22 is level with the axes of both rollers 13; 14 is located. This results in a reduction in the distance E between the ridge 22 and the surface of the polygon roller 13. The housing 12 is in the arrow direction F on guides 23; 24 displaceable, for example, by the piston 26 of a working cylinder, so that the washing device 11 comes into operative connection with the distribution cylinder 3 in the operating state.

Fig. 3 zeigt die Einzelheit X nach Fig. 2 in vergrößerter Darstellung. Der angetriebene Reibzylinder 3 nach Fig. 2 läuft in Pfeilrichtung G um, also gegenläufig zur Drehrichtung C der Gummiwalze 14 und transportiert mit seinen Flächen B Reinigungsmittel 28 von den Düsenleisten 17; 16 in den Bereich H der Polygonwalze 13. Im Kontaktbereich A dringen die Flächen und Kanten der Polygonwalze 13 in die Oberfläche der Gummiwalze 14 ein. Die vom Reibzylinder 3 übertragene, und auf der Gummiwalze 14 haftende Farbschicht 27 wird infolge der in Pfeilrichtung C umlaufenden Gummiwalze 14 in den Kontaktbereich A gegen die Kanten der Polygonwalze 13 geschoben. Es kommt zu einer Vermischung der Farbschicht 27 mit dem von der Polygonwalze 13 zugeführten Reinigungsmittel 28. Durch die in koaxialer Richtung auf dem Umfang der Polygonwalze 13 mit einem Drall laufenden Flächen B wird gleichzeitig ein Rühreffekt erzielt, der die Farbschicht 27 im Bereich A weiter löst. Bei weiterer Drehung der Walzen 13; 14 in der angegebenen Drehrichtung C; D kommt eine Fläche B im Bereich A in Kontakt mit der Gummiwalze 14. Dies hat einen Quetscheffekt zur Folge. Bei weiterer Drehung der Walzen 13; 14 kommt es zum Abscheren des nunmehrigen Gemisches aus Teilen der Farbschicht 27 und des Reinigungsmittels 28' und es erfolgt ein Abtransport des genannten Gemisches auf der Polygonwalze 13 in Pfeilrichtung D. Dieses Gemisch 27; 28' wird von der Oberfläche der Polygonwalze 13 durch die Düsenleisten 17; 16 abgesprüht und geht durch die Waschmittelabführung 19 zur Filtration und wird über eine Pumpe wieder den Düsenleisten 16; 17 zugeführt. Zwischengeschaltet ist noch ein Vorratsbehälter, welcher ebenfalls, wie die Pumpe und die Filtration, nicht dargestellt ist.Fig. 3 shows the detail X of FIG. 2 in an enlarged view. The driven distribution cylinder 3 according to FIG. 2 rotates in the direction of arrow G, that is in the opposite direction to the direction of rotation C of the rubber roller 14 and, with its surfaces B, transports cleaning agent 28 from the Nozzle strips 17; 16 in the area H of the polygon roller 13. In the contact area A, the surfaces and edges of the polygon roller 13 penetrate into the surface of the rubber roller 14. The ink layer 27 transferred from the distribution cylinder 3 and adhering to the rubber roller 14 is pushed into the contact area A against the edges of the polygon roller 13 as a result of the rubber roller 14 rotating in the direction of arrow C. The ink layer 27 is mixed with the cleaning agent 28 supplied by the polygon roller 13. The surfaces B running in a coaxial direction on the circumference of the polygon roller 13 with a swirl simultaneously achieve a stirring effect which further loosens the ink layer 27 in area A. . Upon further rotation of the rollers 13; 14 in the specified direction of rotation C; D, a surface B in area A comes into contact with the rubber roller 14. This results in a squeezing effect. Upon further rotation of the rollers 13; 14 the now mixture of parts of the ink layer 27 and the cleaning agent 28 'is sheared off and the mixture mentioned is removed on the polygon roller 13 in the direction of the arrow D. This mixture 27; 28 'is from the surface of the polygon roller 13 through the nozzle strips 17; 16 sprayed and passes through the detergent discharge 19 for filtration and the nozzle strips 16; 17 fed. A storage container is also interposed, which, like the pump and the filtration, is also not shown.

Ein Teil des auf der Polygonwalze 13 zugeführten Reinigungsmittels 28 wird gleich auf der gesäuberten Gummiwalze 14 in Pfeilrichtung C als Reinigungsmittel 28'' wieder abgeführt.Part of the fed on the polygon roller 13 Cleaning agent 28 is immediately removed again on the cleaned rubber roller 14 in the direction of arrow C as cleaning agent 28 ″.

Gemäß Fig. 4 ist eine weitere Ausführungsvariante nach Fig. 2 dargestellt. Unter der Polygonwalze 13 und innerhalb des Gehäuses 12 ist eine mit Reinigungsmittel 28 gefüllte Wanne 29 angeordnet, welche an ihrem Boden mit einem Schwingungserzeuger 31 verbunden ist und in welche die Oberfläche der Polygonwalze 13 eintaucht. Der Schwingungserzeuger 31 ruht auf Schwingungsisolatoren 32, die mit dem Boden des Gehäuses 12 verbunden sind. Der Schwingungserzeuger 31 arbeitet im Ultraschallbereich und entfernt die eventuell noch auf der Polygonwalze 13 verbliebenen Farbrückstände. Die Wanne 29 füllt sich selbst mit Reinigungsmittel 28 und Farbrückständen 27, die über die Düsenleisten 16; 17 bzw. über die Polygonwalze 13 zugeführt werden. Die Flüssigkeit in der Wanne 29 läuft dann selbständig über und wird über die Waschmittelabführung 19 wieder dem Reinigungskreislauf zugeführt.4 shows a further embodiment variant according to FIG. 2. Arranged under the polygon roller 13 and inside the housing 12 is a trough 29 filled with cleaning agent 28, which is connected at its bottom to a vibration generator 31 and into which the surface of the polygon roller 13 is immersed. The vibration generator 31 rests on vibration isolators 32 which are connected to the bottom of the housing 12. The vibration generator 31 works in the ultrasonic range and removes any color residues that may still be left on the polygon roller 13. The tub 29 fills itself with cleaning agent 28 and ink residues 27, which are applied via the nozzle strips 16; 17 or fed via the polygon roller 13. The liquid in the tub 29 then overflows automatically and is returned to the cleaning circuit via the detergent discharge 19.

TeilelisteParts list

11
PlattenzylinderPlate cylinder
22nd
AuftragswalzeApplicator roller
33rd
ReibzylinderDistribution cylinder
44th
ZwischenwalzeIntermediate roller
55
--
66
NacktzylinderNude cylinder
77
FarbheberColor lifter
88th
DuktorDuke
99
FeuchtwerkDampening system
1010th
--
1111
WascheinrichtungWashing facility
1212
Gehäusecasing
1313
PolygonwalzePolygon roller
1414
GummiwalzeRubber roller
1515
--
1616
DüsenleisteNozzle bar
1717th
DüsenleisteNozzle bar
1818th
WaschmittelzuführungDetergent supply
1919th
WaschmittelzuführungDetergent supply
2020th
--
2121
SpritzwandBulkhead
2222
FirstFirst
2323
Führungguide
2424th
Führungguide
2525th
--
2626
Kolbenpiston
2727th
FarbschichtLayer of paint
2828
Reinigungsmittelcleaning supplies
28'28 '
Reinigungsmittelcleaning supplies
28''28 ''
Reinigungsmittelcleaning supplies
2929
WanneTub
3030th
--
3131
SchwingungserzeugerVibrator
3232
SchwingungsisolatorVibration isolator
AA
KontaktbereichContact area
BB
Flächearea
CC.
PfeilrichtungArrow direction
DD
PfeilrichtungArrow direction
EE
Abstanddistance
FF
PfeilrichtungArrow direction
GG
PfeilrichtungArrow direction
HH
BereichArea

Claims (10)

Wascheinrichtung für Farbwerke bei Druckmaschinen mit in einem Gehäuse (12) angeordneten Sprühdüsen (16; 17) und Reinigungsmittelumlauf, wobei die Wascheinrichtung gegen eine angetriebene Farbwalze (3) anstellbar ist, dadurch gekennzeichnet, daß in dem Gehäuse (12) eine drehzahlregelbare, angetriebene Gummiwalze (14) und eine dazu gegenläufig angetriebene und mittels Düsen besprühbare, mit der Gummiwalze (14) in Wirkverbindung stehende Polygonwalze (13) angeordnet ist.Washing device for inking units in printing machines with spray nozzles (16; 17) arranged in a housing (12) and cleaning agent circulation, the washing device being adjustable against a driven inking roller (3), characterized in that in the housing (12) there is a speed-controlled, driven rubber roller (14) and a polygon roller (13) which is driven in opposite directions and can be sprayed by means of nozzles and is operatively connected to the rubber roller (14). Wascheinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Polygonwalze (13) durch die Gummiwalze (14) antreibbar ist mit einer Umfangsgeschwindigkeit, die gleich, kleiner oder größer ist, als die der treibenden Gummiwalze (14).Washing device according to claim 1, characterized in that the polygon roller (13) can be driven by the rubber roller (14) at a peripheral speed which is equal to, less than or greater than that of the driving rubber roller (14). Wascheinrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Polygonwalze (13) am Umfang sich in axialer Richtung erstreckende streifenförmige Flächen (B) besitzt, die einen Drall aufweisen.Washing device according to Claims 1 and 2, characterized in that the polygon roller (13) has strip-shaped surfaces (B) which extend in the axial direction and have a swirl on the circumference. Wascheinrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der Mantel der Gummiwalze (14) eine Härte von maximal 15o Shore besitzt.Washing device according to claims 1 to 3, characterized in that the jacket of the rubber roller (14) has a hardness of at most 15 o Shore. Wascheinrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß als Sprühdüsen auf Düsenleisten (16; 17) Flachstrahldüsen angeordnet sind, womit die Oberfläche der Polygonwalze (13) besprühbar ist.Washing device according to Claims 1 to 4, characterized in that flat jet nozzles are arranged as spray nozzles on nozzle strips (16; 17), with which the Surface of the polygon roller (13) is sprayable. Wascheinrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß die Flachstrahldüsen aufeinander zu auf einen Spalt (E) gerichtet sind, der von einem Punkt des Umfanges der Polygonwalze (13) und dem First (22) einer im Querschnitt dachförmigen Spritzwand (21) gebildet ist.Washing device according to Claims 1 to 5, characterized in that the flat jet nozzles are directed towards one another at a gap (E) which is formed by a point on the circumference of the polygon roller (13) and the ridge (22) of a spray wall (21) which is roof-shaped in cross section is. Wascheinrichtung nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß das Gehäuse (12) auf Führungen (23; 24) mittels eines Kolbens (26) eines Arbeitszylinders gegen den zu reinigenden, in entgegengesetzter Richtung (D) umlaufenden Reibzylinder (3) anstellbar ist.Washing device according to Claims 1 to 6, characterized in that the housing (12) can be adjusted on guides (23; 24) by means of a piston (26) of a working cylinder against the distribution cylinder (3) which is to be cleaned and rotates in the opposite direction (D). Wascheinrichtung nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß unterhalb der Polygonwalze (13) eine mit Reinigungsmittel (28) gefüllte Wanne (29) angeordnet ist, in welche die Oberfläche der Polygonwalze (13) eintaucht.Washing device according to Claims 1 to 7, characterized in that a trough (29) filled with cleaning agent (28) is arranged below the polygon roller (13) and the surface of the polygon roller (13) is immersed in it. Wascheinrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Wanne (29) mit einem Schwingungserzeuger (31) in Verbindung steht, der über Schwingungsisolatoren (32) mit dem Gehäuse (12) verbunden ist.Washing device according to claim 8, characterized in that the trough (29) is connected to a vibration generator (31) which is connected to the housing (12) via vibration isolators (32). Wascheinrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der Schwingungserzeuger (31) im Ultraschallbereich arbeitet.Washing device according to claim 9, characterized in that the vibration generator (31) operates in the ultrasonic range.
EP92110183A 1991-06-26 1992-06-17 Cleaning device for inking systems in printing machines Expired - Lifetime EP0520305B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4121017 1991-06-26
DE4121017A DE4121017A1 (en) 1991-06-26 1991-06-26 WASHING DEVICE FOR INK PRINTING MACHINES

Publications (2)

Publication Number Publication Date
EP0520305A1 true EP0520305A1 (en) 1992-12-30
EP0520305B1 EP0520305B1 (en) 1995-09-06

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Application Number Title Priority Date Filing Date
EP92110183A Expired - Lifetime EP0520305B1 (en) 1991-06-26 1992-06-17 Cleaning device for inking systems in printing machines

Country Status (5)

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US (1) US5181470A (en)
EP (1) EP0520305B1 (en)
JP (1) JPH0811444B2 (en)
DE (2) DE4121017A1 (en)
RU (1) RU2097202C1 (en)

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CN116423576A (en) * 2023-05-17 2023-07-14 江苏红阳全月机械制造有限公司 Fruit and vegetable slicer with adjustable slice thickness

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DE102009038031A1 (en) 2008-09-03 2010-03-04 Heidelberger Druckmaschinen Ag Method for operating a cleaning device of a printing machine
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CN116423576A (en) * 2023-05-17 2023-07-14 江苏红阳全月机械制造有限公司 Fruit and vegetable slicer with adjustable slice thickness
CN116423576B (en) * 2023-05-17 2023-09-29 江苏红阳全月机械制造有限公司 Fruit and vegetable slicer with adjustable slice thickness

Also Published As

Publication number Publication date
DE4121017C2 (en) 1993-06-09
JPH0811444B2 (en) 1996-02-07
JPH05193126A (en) 1993-08-03
EP0520305B1 (en) 1995-09-06
RU2097202C1 (en) 1997-11-27
DE59203542D1 (en) 1995-10-12
US5181470A (en) 1993-01-26
DE4121017A1 (en) 1993-01-14

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