EP1342575B1 - Device for cleaning a roller or a cylinder - Google Patents

Device for cleaning a roller or a cylinder Download PDF

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Publication number
EP1342575B1
EP1342575B1 EP03101552A EP03101552A EP1342575B1 EP 1342575 B1 EP1342575 B1 EP 1342575B1 EP 03101552 A EP03101552 A EP 03101552A EP 03101552 A EP03101552 A EP 03101552A EP 1342575 B1 EP1342575 B1 EP 1342575B1
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EP
European Patent Office
Prior art keywords
cleaning
roller
toothed belt
elements
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03101552A
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German (de)
French (fr)
Other versions
EP1342575A2 (en
EP1342575A3 (en
Inventor
Claus-Dieter Barrois
Reinhold Dünninger (verstorben)
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Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
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Publication of EP1342575A2 publication Critical patent/EP1342575A2/en
Publication of EP1342575A3 publication Critical patent/EP1342575A3/en
Application granted granted Critical
Publication of EP1342575B1 publication Critical patent/EP1342575B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/23—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/26—Spraying devices

Definitions

  • the invention relates to a device for cleaning a roller or a cylinder according to the preamble of claim 1.
  • a device for cleaning of rollers in which a rotatable brush roller by hand on the roller to be cleaned can be guided along, wherein a cleaning liquid can be applied to the brush roller.
  • This known device includes a reservoir for the cleaning fluid and a collecting container for the dirt to be removed.
  • a device for developing cylindrical surfaces in which a brush roller for cleaning the cylindrical surface in the longitudinal direction of the roller is movable.
  • US 5 568 768 A, US 5 255 606 A, DE 25 22 743 A1, DE 23 17 174 B2, US 2 171 631 A and DE-AS 1 561 029 disclose devices for cleaning rolls with a in the longitudinal direction of the rollers rotating cleaning element.
  • the invention has for its object to provide a device for cleaning a roller or a cylinder.
  • the achievable with the present invention consist in particular in that a high and reliable cleaning effect can be achieved with a relatively simple construction of the device, wherein a particular liquid detergent Can be used.
  • the cleaning agent can be reprocessed and circulated, at the same time enabling self-cleaning of the device.
  • the device according to the invention can permanently remain in a fixed position relative to the roller to be cleaned, whereby cost-intensive set-up times can be avoided.
  • Another advantage is that the cleaning effect of the device according to the invention can be adapted in a simple manner to the degree of contamination of the roller to be cleaned.
  • the device 01 according to the invention is arranged in the immediate vicinity of a roller 02 or cylinder to be cleaned, for example a forme cylinder or a guide roller of a printing press (not shown).
  • the device 01 initially has a first carrier element 03 in the form of a toothed belt, which is guided over two axially spaced rotatable guide elements in the form of pulleys 04 and 05 respectively.
  • a loop-like endlessly circulating carrier element is formed with a first strand 06 facing the roll 02 and a second strand 07 facing away from the roll.
  • an unillustrated drive acts on at least one of the pulleys 04 or 05 with a torque and thus causes a drive of the toothed belt 03 in the direction F of a longitudinal axis of the roller 02.
  • the two pulleys 04 and 05 more precisely their perpendicular to the plane extending center axes 08 and 09, have an axial distance, which in the illustrated embodiment substantially corresponds to the axial length of the roller to be cleaned 02.
  • the toothed belt 03 is provided with cleaning elements 10 in the form of bristle-like bristle elements, which are arranged on the toothed belt 03, that they radially outward, based on the loop formed by the toothed belt 03, point.
  • the timing belt 03 is not provided over its entire length with bristle elements 10; rather, the timing belt is only bristled 03 over half its length.
  • the toothed belt 03 can be brought from a position where a part or substantially all of the bristle elements 10 engage with the surface of the roller 02 to be cleaned or abutted thereto (working position) to the position shown in FIG be, in which all the bristle elements 10 are located on the side facing away from the roller 02 strand 07 (rest position).
  • the device 01 In the region of the path 02 leading away from the roller 02, the device 01 is provided with a series of cleaning chambers 11, 12, 13, 14 and 15 arranged one behind the other, which are successively passed through by the toothed belt 03 and thus the bristle elements 10.
  • the bristle elements 10 are at least partially released from the surface of the roller 02 recorded impurities. This can be achieved, for example, by scrapers, not shown, or at least supported, which are arranged in the respective cleaning chambers.
  • each cleaning chamber 11, 12, 13, 14 and 15 has an inlet 16 for a cleaning agent for cleaning the bristle elements 10.
  • a cleaning agent may be a cleaning liquid, for example water, optionally also with the addition of solvents, soaps, alkalis or the like, use.
  • the cleaning agent is rinsed into the cleaning chambers 11, 12, 13, 14 and 15, wherein the guided through the cleaning chambers bristle elements 10 are wetted and freed of their pollution load.
  • each cleaning chamber 11, 12, 13, 14 and 15 has a drain 17 for the after cleaning the bristle elements 10 soiled cleaning agent.
  • a further chamber 18 is arranged, which is also traversed by the toothed belt 03 and the bristle elements 10.
  • this chamber 18 in which no detergent is supplied, there is a targeted dehumidification of the bristle elements 10 except for a predetermined depending on the particular application degree. In this case, this dehumidification, for example, by a not shown scraper, which comes into engagement with the bristle elements 10, or by blowing compressed air or the like.
  • the stripped or blown detergent is removed from the chamber 18 through a drain 19.
  • the drains 17 of the cleaning chambers 11, 12, 13, 14 and 15 and the outlet 19 of the chamber 18 open into a common collecting channel 20.
  • the collecting channel 20 is connected via a line 21 to a collecting vessel 22, in FIG which the polluted cleaning agent is passed.
  • the contaminated cleaning agent is guided in or after the collecting vessel 22 through a filter element 23 and cleaned there of the impurities.
  • the so-recycled and optionally post-dosed detergent is stored in a second collecting vessel 24 and from there by means of a pump 25 and a line 26 again via the feeds 16 into the cleaning chambers 11, 12, 13, 14 and 15. Overall, therefore, a substantially closed detergent circuit can be realized.
  • two toothed belts 03 and 27 are arranged one behind the other with respect to the circumferential direction of the roller 02, ie. H. arranged one above the other.
  • the second toothed belt 27 is provided in the same way as the first toothed belt 03 over its half length with bristle elements 28.
  • the toothed belt 27 is guided in basically the same way as the toothed belt 03 via pulleys, not shown, whose center axes are aligned with the center axes 08 and 09 of the pulleys 04 and 05.
  • At least one of the pulleys of the toothed belt 27 has a drive, with which this pulley with a torque for driving the toothed belt 27 can be acted upon.
  • the drive of the toothed belt 03 and the drive of the toothed belt 27 are basically independent. In the embodiment shown here, the drive of the toothed belt 03 and the drive of the toothed belt 27 are in opposite directions, so that the direction of rotation of the pulleys and thus the timing belt 03 and 27 are even in opposite directions. The directions of rotation of the drives can be reversible.
  • a guide member 29 is provided between the pulleys 04 and 05 of the belt 03 and the pulleys, not shown, which extends in the illustrated embodiment, substantially over the entire gap between the respective pulleys.
  • the guide member 29 has on both sides superimposed groove-like depressions 30, 31 and 32, 33, in which the respective runs of the toothed belts 03 and 27 are guided. This is done both a Guide perpendicular to the main belt formed by the belt loops levels as well as a support of the timing belt 03 and 27 against the groove bottom.
  • a component 34 is arranged on the guide member 29 in which the cleaning chambers 11, 12, 13, 14 and 15 and the chamber 18 for the upper toothed belt 03 and, in principle, the same Way, the cleaning chambers 35 and the chamber for the lower timing belt 27 are formed. All chambers open with their sequence 17 or 19 (upper toothed belt 03) and 36 (lower toothed belt 27) in the common collecting channel 20, which is also formed directly in the component 34.
  • the inlets 16 (upper toothed belt 03) and 37 (lower toothed belt 27) for the inflow of cleaning agent, the cleaning chamber 11, 12, 13, 14 and 15 and 35 are further arranged.
  • the inlets 16 and 37 open into laterally above and below the component 34 scheduled manifolds 38 and 39, which are supplied via the line 26 of pump 25 with detergent.
  • the roller 02 to be cleaned has on its surface a plate 40 for flexographic printing, which is to be freed after a designated ended printing process of impurities, especially paint residues.
  • the bristle elements 10 and 28 are arranged on the side facing away from the roller 02 run of the toothed belt 03 and 27, so that no interference with the roller 02 and at the flexographic Plate 40 is done.
  • the distance of the device 01 from the roller 02 is selected so that in the working position, ie with the Bristle elements 10 provided run of the toothed belt now points to the roller 02, the bristle elements with the roll surface in mechanical engagement or on the roll surface can come to rest.
  • the device 01 according to the invention can remain in the same position on the roller during the printing process, so that expensive set-up times are eliminated.
  • the cleaning chambers 11, 12, 13, 14 and 15 are rinsed with cleaning fluid, thereby wetting the bristle elements 10.
  • the bristle elements 10 move through the chambers arranged one behind the other and, after rinsing with cleaning agents in the cleaning chambers 11, 12, 13, 14 and 15 wetted bristle elements 10 in the second chamber 19 just dehumidified so far that for a Sweeping the roll surface undesirably leakage of cleaning agent from the gap between the roller 02 and the device 01 is largely prevented, on the other hand, however, when sweeping the arranged on the roll surface plate 40 with the bristle elements 10 a sufficient amount of detergent is transferred to the plate to soften the paint to be removed by the cleaning process.
  • the bristle elements 10 initially carry out both a transfer of cleaning agent to the surface to be cleaned and a mechanically abrasive removal of the dirt. With increasing release of the residual moisture of the bristle elements 10 on the surface of the roller 02 and the flexographic plate 40, the bristle elements 10 are able to absorb the ink residues from the roll surface and the rinsing in the Release cleaning chambers 11, 12, 13, 14 and 15 for deposition.
  • the cycle time ie in particular the residence time and amount of the cleaning agent on the roll surface, in particular by adjusting the rotational speed of the roller 02 and the rotational speed of the toothed belt, but also by adjusting the residual moisture content of the bristle elements 10 in the chamber 18 in dependence, for example, on the degree of contamination in freely adjustable over wide limits.
  • a second toothed belt 27 which acts in basically the same way, but is driven in opposite directions to the toothed belt 03, in particular the cleaning surface can be increased and thereby the cleaning time can be shortened. Due to the opposite movement of the two toothed belts 03 and 27 also subject in the direction of movement of the timing belt 03 and 27 flanks of the intended elevations and / or depressions of the roll surface of a more uniform cleaning effect, since "shadow areas" are largely prevented.
  • the device 01 is further provided with a housing 41 which is open to the roller 02.
  • the edge regions of the housing 41 in the region of both end faces of the roller 02 have splash plates 42 and 43, which, depending on the direction of rotation of the toothed belt 03 and 27, an uncontrolled spraying of detergent at the exit of the bristle elements 10 from the chamber 18 and from dirty Prevent cleaning agent when entering the bristle elements 10 in the housing 41.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Cleaning In General (AREA)

Abstract

At least one cleaning element (10,28) is movable in the lengthwise direction of the roller (02) being cleaned and has a support element (03,27) rotating in the roller's lengthwise direction. The support element has one stringer (06) facing the roller, and one stringer (07) facing away from the roller. At least two support elements are positioned behind each other in relation to the roller's peripheral direction. At least two, adjacent support elements are driven in contrary rotation.

Description

Die Erfindung betrifft eine Vorrichtung zum Reinigen einer Walze oder eines Zylinders nach dem Oberbegriff des Anspruches 1.The invention relates to a device for cleaning a roller or a cylinder according to the preamble of claim 1.

Durch die EP 06 93 378 B1 ist ein Gerät zur Reinigung von Walzen bekannt, bei welcher eine drehbare Bürstenwalze von Hand an der zu reinigenden Walze entlang führbar ist, wobei eine Reinigungsflüssigkeit auf die Bürstenwalze auftragbar ist. Dieses bekannte Gerät enthält einen Vorratsbehälter für die Reinigungsflüssigkeit und einen Auffang behälter für die zu entfernenden Schmutzteilchen.From EP 06 93 378 B1 a device for cleaning of rollers is known, in which a rotatable brush roller by hand on the roller to be cleaned can be guided along, wherein a cleaning liquid can be applied to the brush roller. This known device includes a reservoir for the cleaning fluid and a collecting container for the dirt to be removed.

Aus der DE 197 34 103 A1 ist eine Einrichtung zum Entwickeln von zylindrischen Oberflächen bekannt, bei der eine Bürstenwalze zur Reinigung der zylindrischen Oberfläche in Längsrichtung der Walze verfahrbar ist.From DE 197 34 103 A1 a device for developing cylindrical surfaces is known in which a brush roller for cleaning the cylindrical surface in the longitudinal direction of the roller is movable.

Die US 5 568 768 A, die US 5 255 606 A, die DE 25 22 743 A1, die DE 23 17 174 B2, die US 2 171 631 A und die DE-AS 1 561 029 offenbaren Vorrichtungen zum Reinigen von Walzen mit einem in Längsrichtung der Walzen umlaufenden Reinigungselement.US 5 568 768 A, US 5 255 606 A, DE 25 22 743 A1, DE 23 17 174 B2, US 2 171 631 A and DE-AS 1 561 029 disclose devices for cleaning rolls with a in the longitudinal direction of the rollers rotating cleaning element.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Reinigen einer Walze oder eines Zylinders zu schaffen.The invention has for its object to provide a device for cleaning a roller or a cylinder.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst.The object is achieved by the features of claim 1.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß bei einem vergleichsweise einfachem Aufbau der Vorrichtung eine hohe und zuverlässige Reinigungswirkung erzielbar ist, wobei ein insbesondere flüssiges Reinigungsmittel Verwendung finden kann. Das Reinigungsmittel kann zudem wiederaufbereitet und im Umlauf geführt werden, wobei gleichzeitig eine Selbstreinigung der Vorrichtung ermöglicht ist.The achievable with the present invention consist in particular in that a high and reliable cleaning effect can be achieved with a relatively simple construction of the device, wherein a particular liquid detergent Can be used. In addition, the cleaning agent can be reprocessed and circulated, at the same time enabling self-cleaning of the device.

Weiter kann die erfindungsgemäße Vorrichtung in fester Position relativ zur zu reinigenden Walze dauernd an dieser verbleiben, wodurch kostenintensive Rüstzeiten vermieden werden können.Furthermore, the device according to the invention can permanently remain in a fixed position relative to the roller to be cleaned, whereby cost-intensive set-up times can be avoided.

Ein weitere Vorteil ist, daß die Reinigungswirkung der erfindungsgemäßen Vorrichtung in einfacher Weise an den Verschmutzungsgrad der zu reinigenden Walze angepaßt werden kann.Another advantage is that the cleaning effect of the device according to the invention can be adapted in a simple manner to the degree of contamination of the roller to be cleaned.

Im folgenden ist die Erfindung anhand lediglich ein Ausführungsbeispiel zeigender Zeichnungen näher erläutert. Es zeigen:

Fig. 1
in schematischer Darstellung eine Draufsicht auf eine erfindungsgemäße Vorrichtung
Fig. 2
in ebenfalls schematischer Darstellung einen Schnitt entlang der Schnittlinie I - I in Fig. 1
In the following the invention with reference to only one embodiment showing drawings is explained in more detail. Show it:
Fig. 1
in a schematic representation of a plan view of a device according to the invention
Fig. 2
in a likewise schematic representation of a section along the section line I - I in Fig. 1st

Die erfindungsgemäße Vorrichtung 01 ist in unmittelbarer Nähe einer zu reinigenden Walze 02 oder Zylinders, beispielsweise eines Formzylinders oder einer Leitwalze einer nicht dargestellten Druckmaschine, angeordnet. Die Vorrichtung 01 weist zunächst einmal ein erstes Trägerelement 03 in Form eines Zahnriemens auf, der über zwei axial beabstandete drehbare Führungselemente in Form von Riemenscheiben 04 bzw. 05 geführt wird. Dadurch wird ein schlaufenartig endlos umlaufendes Trägerelement mit einem zur Walze 02 weisenden ersten Trum 06 und einem von der Walze wegweisenden zweiten Trum 07 gebildet.The device 01 according to the invention is arranged in the immediate vicinity of a roller 02 or cylinder to be cleaned, for example a forme cylinder or a guide roller of a printing press (not shown). The device 01 initially has a first carrier element 03 in the form of a toothed belt, which is guided over two axially spaced rotatable guide elements in the form of pulleys 04 and 05 respectively. As a result, a loop-like endlessly circulating carrier element is formed with a first strand 06 facing the roll 02 and a second strand 07 facing away from the roll.

Weiter ist ein nicht dargestellter Antrieb vorgesehen, der mindestens eine der Riemenscheiben 04 oder 05 mit einem Drehmoment beaufschlagt und so einen Antrieb des Zahnriemens 03 in Richtung F einer Längsachse der Walze 02 bewirkt. Die beiden Riemenscheiben 04 und 05, genauer deren senkrecht zur Zeichenebene verlaufende Mittelachsen 08 und 09, weisen einen axialen Abstand auf, der beim hier dargestellten Ausführungsbeispiel im wesentlichen der axialen Länge der zu reinigenden Walze 02 entspricht.Further, an unillustrated drive is provided, which acts on at least one of the pulleys 04 or 05 with a torque and thus causes a drive of the toothed belt 03 in the direction F of a longitudinal axis of the roller 02. The two pulleys 04 and 05, more precisely their perpendicular to the plane extending center axes 08 and 09, have an axial distance, which in the illustrated embodiment substantially corresponds to the axial length of the roller to be cleaned 02.

Wie insbesondere der Darstellung nach Fig. 2 zu entnehmen ist, ist der Zahnriemen 03 mit Reinigungselementen 10 in Form von stirnbürstenartigen Borstenelementen versehen, die so am Zahnriemen 03 angeordnet sind, daß sie nach radial außen, bezogen auf die durch den Zahnriemen 03 gebildet Schlaufe, weisen. Weiter ist beim dargestellten Ausführungsbeispiel der Zahnriemen 03 nicht über seine gesamt Länge mit Borstenelementen 10 versehen; vielmehr ist der Zahnriemen nur 03 nur über seine halbe Länge beborstet. Dadurch kann der Zahnriemen 03 aus einer Position, in der ein Teil oder im wesentlichen alle der Borstenelemente 10 mit der Oberfläche der zu reinigenden Walze 02 in Eingriff bzw. an dieser zur Anlage gelangen (Arbeitsposition), in die in Fig. 2 gezeigte Position gebracht werden, in der sämtliche Borstenelemente 10 auf dem von der Walze 02 wegweisenden Trum 07 liegen (Ruheposition).2, the toothed belt 03 is provided with cleaning elements 10 in the form of bristle-like bristle elements, which are arranged on the toothed belt 03, that they radially outward, based on the loop formed by the toothed belt 03, point. Further, in the illustrated embodiment, the timing belt 03 is not provided over its entire length with bristle elements 10; rather, the timing belt is only bristled 03 over half its length. Thereby, the toothed belt 03 can be brought from a position where a part or substantially all of the bristle elements 10 engage with the surface of the roller 02 to be cleaned or abutted thereto (working position) to the position shown in FIG be, in which all the bristle elements 10 are located on the side facing away from the roller 02 strand 07 (rest position).

Im Bereich des von der Walze 02 wegweisenden Trums 07 ist die Vorrichtung 01 mit einer Reihe hintereinander angeordneter Reinigungskammern 11, 12, 13, 14 und 15 versehen, die nacheinander vom Zahnriemen 03 und damit den Borstenelementen 10 durchlaufen werden. In diesen Reinigungskammern 11, 12, 13, 14 und 15 werden die Borstenelemente 10 von der Oberfläche der Walze 02 aufgenommenen Verunreinigungen zumindest teilweise befreit. Dies kann beispielsweise durch nicht dargestellte Abstreifer erreicht oder zumindest unterstützt werden, die in den jeweiligen Reinigungskammern angeordnet sind.In the region of the path 02 leading away from the roller 02, the device 01 is provided with a series of cleaning chambers 11, 12, 13, 14 and 15 arranged one behind the other, which are successively passed through by the toothed belt 03 and thus the bristle elements 10. In these cleaning chambers 11, 12, 13, 14 and 15, the bristle elements 10 are at least partially released from the surface of the roller 02 recorded impurities. This can be achieved, for example, by scrapers, not shown, or at least supported, which are arranged in the respective cleaning chambers.

Beim in den Figuren gezeigten Ausführungsbeispiel weist jede Reinigungskammer 11, 12, 13, 14 und 15 einen Zulauf 16 für ein Reinigungsmittel zu Reinigung der Borstenelemente 10 auf. Als Reinigungsmittel kann dabei eine Reinigungsflüssigkeit, beispielsweise Wasser, gegebenenfalls auch unter Zusatz von Lösungsmitteln, Seifen, Laugen oder dergleichen, Verwendung finden. Durch diesen Zulauf 16 wird das Reinigungsmittel in die Reinigungskammern 11, 12, 13, 14 und 15 gespült, wobei die durch die Reinigungskammern geführten Borstenelemente 10 benetzt und von ihrer Schmutzfracht befreit werden.In the exemplary embodiment shown in the figures, each cleaning chamber 11, 12, 13, 14 and 15 has an inlet 16 for a cleaning agent for cleaning the bristle elements 10. As a cleaning agent may be a cleaning liquid, for example water, optionally also with the addition of solvents, soaps, alkalis or the like, use. Through this inlet 16, the cleaning agent is rinsed into the cleaning chambers 11, 12, 13, 14 and 15, wherein the guided through the cleaning chambers bristle elements 10 are wetted and freed of their pollution load.

Weiter weist jede Reinigungskammer 11, 12, 13, 14 und 15 einen Ablauf 17 für das nach der Reinigung der Borstenelemente 10 verschmutzte Reinigungsmittel auf.Next, each cleaning chamber 11, 12, 13, 14 and 15 has a drain 17 for the after cleaning the bristle elements 10 soiled cleaning agent.

Am Ende des Trums 07 und damit in Laufrichtung des Zahnriemens 03 hinter den Reinigungskammern 11, 12, 13, 14 und 15 ist eine weitere Kammer 18 angeordnet, die ebenfalls vom Zahnriemen 03 und den Borstenelementen 10 durchlaufen wird. In dieser Kammer 18, in die kein Reinigungsmittel zugeführt wird, erfolgt eine gezielte Entfeuchtung der Borstenelemente 10 bis auf einen in Abhängigkeit vom jeweiligen Anwendungsfall vorzugebenden Grad. Dabei kann diese Entfeuchtung beispielsweise durch ein nicht dargestelltes Abstreifelement, das mit den Borstenelementen 10 in Eingriff kommt, oder durch Einblasen von Druckluft oder dergleichen erfolgen. Das abgestreifte oder abgeblasene Reinigungsmittel wird durch einen Ablauf 19 aus der Kammer 18 abgeführt.At the end of the run 07 and thus in the direction of the toothed belt 03 behind the cleaning chambers 11, 12, 13, 14 and 15, a further chamber 18 is arranged, which is also traversed by the toothed belt 03 and the bristle elements 10. In this chamber 18, in which no detergent is supplied, there is a targeted dehumidification of the bristle elements 10 except for a predetermined depending on the particular application degree. In this case, this dehumidification, for example, by a not shown scraper, which comes into engagement with the bristle elements 10, or by blowing compressed air or the like. The stripped or blown detergent is removed from the chamber 18 through a drain 19.

Wie aus Fig. 1 ersichtlich, münden die Abläufe 17 der Reinigungskammern 11, 12, 13, 14 und 15 sowie der Ablauf 19 der Kammer 18 in einen gemeinsamen Sammelkanal 20. Der Sammelkanal 20 ist über eine Leitung 21 mit einem Sammelgefäß 22 verbunden, in welches das verschmutzte Reinigungsmittel geleitet wird.As can be seen from FIG. 1, the drains 17 of the cleaning chambers 11, 12, 13, 14 and 15 and the outlet 19 of the chamber 18 open into a common collecting channel 20. The collecting channel 20 is connected via a line 21 to a collecting vessel 22, in FIG which the polluted cleaning agent is passed.

Das verschmutzte Reinigungsmittel wird im oder im Anschluß an das Sammelgefäß 22 durch ein Filterelement 23 geführt und dort von den Verunreinigungen gereinigt.The contaminated cleaning agent is guided in or after the collecting vessel 22 through a filter element 23 and cleaned there of the impurities.

Anschließend wird das so wiederaufbereitete und gegebenenfalls nachdosierte Reinigungsmittel in einem zweiten Sammelgefäß 24 gespeichert und von dort mittels einer Pumpe 25 und eine Leitung 26 wieder über die Zuläufe 16 in die Reinigungskammern 11, 12, 13, 14 und 15 gegeben. Insgesamt läßt sich daher ein im wesentlichen geschlossener Reinigungsmittelkreislauf realisieren.Subsequently, the so-recycled and optionally post-dosed detergent is stored in a second collecting vessel 24 and from there by means of a pump 25 and a line 26 again via the feeds 16 into the cleaning chambers 11, 12, 13, 14 and 15. Overall, therefore, a substantially closed detergent circuit can be realized.

Wie insbesondere aus der Darstellung nach Fig. 2 ersichtlich ist, sind beim hier gezeigten Ausführungsbeispiel zwei Zahnriemen 03 und 27 bezogen auf die Umfangsrichtung der Walze 02 hintereinander, d. h. übereinander angeordnet. Dabei ist der zweite Zahnriemen 27 in gleicher Weise wie der erste Zahnriemen 03 über seine halbe Länge mit Borstenelementen 28 versehen. Der Zahnriemen 27 ist in grundsätzlich der gleichen Weise wie der Zahnriemen 03 über nicht dargestellte Riemenscheiben geführt, deren Mittelachsen mit den Mittelachsen 08 und 09 der Riemenscheiben 04 und 05 fluchten. Zumindest eine der Riemenscheiben des Zahnriemens 27 weist einen Antrieb auf, mit dem diese Riemenscheibe mit einem Drehmoment zum Antrieb des Zahnriemens 27 beaufschlagbar ist. Der Antrieb des Zahnriemens 03 und der Antrieb des Zahnriemens 27 sind dabei grundsätzlich unabhängig. Beim hier dargestellten Ausführungsbeispiel sind der Antrieb des Zahnriemens 03 und der Antrieb des Zahnriemens 27 gegenläufig, so daß auch die Drehrichtung der Riemenscheiben und damit der Zahnriemen 03 und 27 selbst gegenläufig sind. Die Drehrichtungen der Antriebe können umkehrbar sein.As can be seen in particular from the illustration according to FIG. 2, in the exemplary embodiment shown here, two toothed belts 03 and 27 are arranged one behind the other with respect to the circumferential direction of the roller 02, ie. H. arranged one above the other. In this case, the second toothed belt 27 is provided in the same way as the first toothed belt 03 over its half length with bristle elements 28. The toothed belt 27 is guided in basically the same way as the toothed belt 03 via pulleys, not shown, whose center axes are aligned with the center axes 08 and 09 of the pulleys 04 and 05. At least one of the pulleys of the toothed belt 27 has a drive, with which this pulley with a torque for driving the toothed belt 27 can be acted upon. The drive of the toothed belt 03 and the drive of the toothed belt 27 are basically independent. In the embodiment shown here, the drive of the toothed belt 03 and the drive of the toothed belt 27 are in opposite directions, so that the direction of rotation of the pulleys and thus the timing belt 03 and 27 are even in opposite directions. The directions of rotation of the drives can be reversible.

Wie ebenfalls aus den Figuren ersichtlich ist, ist zwischen den Riemenscheiben 04 und 05 des Zahnriemens 03 und den nicht dargestellten Riemenscheiben des Zahnriemens 27 ein Führungselement 29 vorgesehen, das sich beim hier dargestellten Ausführungsbeispiel im wesentlichen über den gesamten Zwischenraum zwischen den jeweiligen Riemenscheiben erstreckt. Das Führungselement 29 weist beidseitig übereinander angeordnete nutartige Vertiefungen 30, 31 bzw. 32, 33 auf, in denen die jeweiligen Trume der Zahnriemen 03 und 27 geführt sind. Dabei erfolgt sowohl eine Führung senkrecht zur durch die Zahnriemenschlaufen gebildeten Hauptebenen als auch eine Abstützung der Zahnriemen 03 und 27 gegen den Nutgrund.As can also be seen from the figures, 27, a guide member 29 is provided between the pulleys 04 and 05 of the belt 03 and the pulleys, not shown, which extends in the illustrated embodiment, substantially over the entire gap between the respective pulleys. The guide member 29 has on both sides superimposed groove-like depressions 30, 31 and 32, 33, in which the respective runs of the toothed belts 03 and 27 are guided. This is done both a Guide perpendicular to the main belt formed by the belt loops levels as well as a support of the timing belt 03 and 27 against the groove bottom.

Im Bereich des von der Walze wegweisenden Trums der Zahnriemen 03 und 27 ist am Führungselement 29 ein Bauteil 34 angeordnet, in dem die Reinigungskammern 11, 12, 13, 14 und 15 sowie die Kammer 18 für den oberen Zahnriemen 03 und, in grundsätzlich der gleichen Weise, die Reinigungskammern 35 und die Kammer für den unteren Zahnriemen 27 ausgebildet sind. Sämtliche Kammern münden dabei mit ihrem Ablauf 17 bzw. 19 (oberer Zahnriemen 03) und 36 (unterer Zahnriemen 27) in den gemeinsamen Sammelkanal 20, der ebenfalls unmittelbar im Bauteil 34 ausgebildet ist.In the area of the groundbreaking run of the toothed belt 03 and 27, a component 34 is arranged on the guide member 29 in which the cleaning chambers 11, 12, 13, 14 and 15 and the chamber 18 for the upper toothed belt 03 and, in principle, the same Way, the cleaning chambers 35 and the chamber for the lower timing belt 27 are formed. All chambers open with their sequence 17 or 19 (upper toothed belt 03) and 36 (lower toothed belt 27) in the common collecting channel 20, which is also formed directly in the component 34.

Im Bauteil 34 sind weiter die Zuläufe 16 (oberer Zahnriemen 03) und 37 (unterer Zahnriemen 27) für den Zufluß von Reinigungsmittel die Reinigungskammer 11, 12, 13, 14 und 15 bzw. 35 angeordnet. Die Zuläufe 16 und 37 münden dabei in seitlich oben und unten am Bauteil 34 angesetzte Sammelleitungen 38 und 39, die über die Leitung 26 von Pumpe 25 mit Reinigungsmittel versorgt werden.In the component 34, the inlets 16 (upper toothed belt 03) and 37 (lower toothed belt 27) for the inflow of cleaning agent, the cleaning chamber 11, 12, 13, 14 and 15 and 35 are further arranged. The inlets 16 and 37 open into laterally above and below the component 34 scheduled manifolds 38 and 39, which are supplied via the line 26 of pump 25 with detergent.

Im folgenden sei eine mögliche Betriebsweise der in den Figuren dargestellten erfindungsgemäßen Vorrichtung näher erläutert:In the following, a possible mode of operation of the device according to the invention shown in the figures will be explained in more detail:

Die zu reinigende Walze 02 weist an ihrer Oberfläche eine Platte 40 für Flexodruck auf, die nach einem bestimmungsgemäß beendeten Druckvorgang von Verunreinigungen, insbesondere Farbresten befreit werden soll.The roller 02 to be cleaned has on its surface a plate 40 for flexographic printing, which is to be freed after a designated ended printing process of impurities, especially paint residues.

In der Ruheposition der Vorrichtung 1, wie sie insbesondere in Fig. 2 dargestellt ist, sind sämtliche Borstenelemente 10 und 28 am von der Walze 02 abgewandten Trum der Zahnriemen 03 und 27 angeordnet, so daß kein Eingriff an der Walze 02 bzw. an der flexographischen Platte 40 erfolgt. Gleichzeitig aber ist der Abstand der Vorrichtung 01 von der Walze 02 so gewählt, daß in der Arbeitsposition, d.h. das mit den Borstenelementen 10 versehene Trum des Zahnriemens weist nun zur Walze 02, die Borstenelemente mit der Walzenoberfläche in mechanischen Eingriff bzw. an der Walzenoberfläche zur Anlage gelangen können. Somit kann die erfindungsgemäße Vorrichtung 01 während des Druckvorgangs in unveränderter Position an der Walze verbleiben, so daß teure Rüstzeiten entfallen.In the rest position of the device 1, as shown in particular in Fig. 2, all the bristle elements 10 and 28 are arranged on the side facing away from the roller 02 run of the toothed belt 03 and 27, so that no interference with the roller 02 and at the flexographic Plate 40 is done. At the same time, however, the distance of the device 01 from the roller 02 is selected so that in the working position, ie with the Bristle elements 10 provided run of the toothed belt now points to the roller 02, the bristle elements with the roll surface in mechanical engagement or on the roll surface can come to rest. Thus, the device 01 according to the invention can remain in the same position on the roller during the printing process, so that expensive set-up times are eliminated.

Der Einfachheit halber soll zunächst lediglich die Wirkung eines Zahnriemens 03 beschrieben werden.For the sake of simplicity, at first only the effect of a toothed belt 03 will be described.

Soll nun nach Beendigung des Druckvorgangs eine Reinigung der Walze 02 bzw. der flexographischen Platte 40 erfolgen, werden zunächst die Reinigungskammern 11, 12, 13, 14 und 15 mit Reinigungsflüssigkeit gespült und dadurch die Borstenelemente 10 benetzt. Beim nachfolgenden Antrieb des Zahnriemens 03 wandern die Borstenelemente 10 durch die hintereinander angeordneten Kammern und werden nach dem Spülen mit Reinigungsmittel in den Reinigungskammern 11, 12, 13, 14 und 15 benetzten Borstenelemente 10 in der zweiten Kammer 19 gerade soweit entfeuchtet, daß zum einen beim Überstreichen der Walzenoberfläche ein unerwünschtes Austreten von Reinigungsmittel aus dem Spalt zwischen der Walze 02 und der Vorrichtung 01 weitgehend verhindert wird, zum anderen aber beim Überstreichen der an der Walzenoberfläche angeordneten Platte 40 mit den Borstenelementen 10 eine ausreichende Menge von Reinigungsmittel auf die Platte übertragen wird, um die durch den Reinigungsvorgang zu entfernende Farbe anzuweichen.If, after completion of the printing operation, a cleaning of the roller 02 or of the flexographic plate 40 takes place, first the cleaning chambers 11, 12, 13, 14 and 15 are rinsed with cleaning fluid, thereby wetting the bristle elements 10. During the subsequent drive of the toothed belt 03, the bristle elements 10 move through the chambers arranged one behind the other and, after rinsing with cleaning agents in the cleaning chambers 11, 12, 13, 14 and 15 wetted bristle elements 10 in the second chamber 19 just dehumidified so far that for a Sweeping the roll surface undesirably leakage of cleaning agent from the gap between the roller 02 and the device 01 is largely prevented, on the other hand, however, when sweeping the arranged on the roll surface plate 40 with the bristle elements 10 a sufficient amount of detergent is transferred to the plate to soften the paint to be removed by the cleaning process.

Bei der weiteren Bewegung des Zahnriemens 03 erfolgt also durch die Borstenelemente 10 zunächst sowohl eine Übertragung von Reinigungsmittel auf die zu reinigende Fläche als auch eine mechanisch abrasives Abtragen der Verschmutzung. Mit zunehmender Abgabe der Restfeuchte der Borstenelemente 10 auf die Oberfläche der Walze 02 bzw. der flexographischen Platte 40 sind die Borstenelemente 10 in der Lage, die Farbreste von der Walzenoberfläche aufzunehmen und über die Spülung in den Reinigungskammern 11, 12, 13, 14 und 15 zur Abscheidung abzugeben. Die Zykluszeit, d.h. insbesondere die Verweildauer und Menge des Reinigungsmittels auf der Walzenoberfläche, ist insbesondere durch die Anpassung der Drehzahl der Walze 02 und der Drehgeschwindigkeit des Zahnriemens, aber auch durch Einstellung des Restfeuchtegehalts der Borstenelemente 10 in der Kammer 18 in Abhängigkeit beispielsweise vom Verschmutzungsgrad in weiten Grenzen frei einstellbar.During the further movement of the toothed belt 03, the bristle elements 10 initially carry out both a transfer of cleaning agent to the surface to be cleaned and a mechanically abrasive removal of the dirt. With increasing release of the residual moisture of the bristle elements 10 on the surface of the roller 02 and the flexographic plate 40, the bristle elements 10 are able to absorb the ink residues from the roll surface and the rinsing in the Release cleaning chambers 11, 12, 13, 14 and 15 for deposition. The cycle time, ie in particular the residence time and amount of the cleaning agent on the roll surface, in particular by adjusting the rotational speed of the roller 02 and the rotational speed of the toothed belt, but also by adjusting the residual moisture content of the bristle elements 10 in the chamber 18 in dependence, for example, on the degree of contamination in freely adjustable over wide limits.

Durch die Anordnung eines zweiten Zahnriemens 27, der in grundsätzlich der gleichen Weise wirkt, jedoch gegenläufig zum Zahnriemen 03 angetrieben ist, kann insbesondere die Reinigungsfläche vergrößert und dadurch die Reinigungszeit verkürzt werden. Aufgrund der gegenläufigen Bewegung der beiden Zahnriemen 03 und 27 unterliegen zudem die in Bewegungsrichtung der Zahnriemen 03 und 27 gegenüberliegenden Flanken der bestimmungsgemäßen Erhöhungen und/oder Vertiefungen der Walzenoberfläche einer gleichmäßigeren Reinigungswirkung, da "Schattenbereiche" weitestgehend verhindert werden.The arrangement of a second toothed belt 27, which acts in basically the same way, but is driven in opposite directions to the toothed belt 03, in particular the cleaning surface can be increased and thereby the cleaning time can be shortened. Due to the opposite movement of the two toothed belts 03 and 27 also subject in the direction of movement of the timing belt 03 and 27 flanks of the intended elevations and / or depressions of the roll surface of a more uniform cleaning effect, since "shadow areas" are largely prevented.

Die Vorrichtung 01 ist ferner mit einem Gehäuse 41 versehen, das zur Walze 02 hin offen ist. Die Kantenbereiche des Gehäuses 41 im Bereich beider Stirnseiten der Walze 02 weisen Spritzbleche 42 und 43 auf, die, in Abhängigkeit von der Drehrichtung der Zahnriemen 03 und 27, ein unkontrolliertes Abspritzen von Reinigungsmittel beim Austritt der Borstenelemente 10 aus der Kammer 18 bzw. von verschmutztem Reinigungsmittel beim Eintritt der Borstenelemente 10 in das Gehäuse 41 verhindern.The device 01 is further provided with a housing 41 which is open to the roller 02. The edge regions of the housing 41 in the region of both end faces of the roller 02 have splash plates 42 and 43, which, depending on the direction of rotation of the toothed belt 03 and 27, an uncontrolled spraying of detergent at the exit of the bristle elements 10 from the chamber 18 and from dirty Prevent cleaning agent when entering the bristle elements 10 in the housing 41.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101
Vorrichtungcontraption
0202
Walzeroller
0303
Trägerelement, ZahnriemenCarrier element, toothed belt
0404
Riemenscheibepulley
0505
Riemenscheibepulley
0606
erstes Trum (03)first run (03)
0707
zweites Trum (03)second run (03)
0808
Mittelachse (04)Central axis (04)
0909
Mittelachse (05)Central axis (05)
1010
Reinigungselement, BorstenelementCleaning element, bristle element
1111
Reinigungskammercleaning chamber
1212
Reinigungskammercleaning chamber
1313
Reinigungskammercleaning chamber
1414
Reinigungskammercleaning chamber
1515
Reinigungskammercleaning chamber
1616
ZulaufIntake
1717
Ablaufprocedure
1818
Kammerchamber
1919
Ablaufprocedure
2020
Sammelkanalcollecting duct
2121
Leitungmanagement
2222
Sammelgefäßcollection vessel
2323
Filterelementfilter element
2424
Sammelgefäßcollection vessel
2525
Pumpepump
2626
Leitungmanagement
2727
Zahnriementoothed belt
2828
Borstenelementebristle elements
2929
Führungselementguide element
3030
Vertiefungdeepening
3131
Vertiefungdeepening
3232
Vertiefungdeepening
3333
Vertiefungdeepening
3434
Bauteilcomponent
3535
Reinigungskammercleaning chamber
3636
Ablaufprocedure
3737
ZulaufIntake
3838
Sammelleitungmanifold
3939
Sammelleitungmanifold
4040
Platteplate
4141
Gehäusecasing
4242
Spritzblechsplashboard
4343
Spritzblechsplashboard

Claims (8)

  1. An apparatus for cleaning a roller (02) or a cylinder, with at least one cleaning element (10; 28) which can be moved along the roller (02) to be cleaned, substantially in the longitudinal direction of the latter, wherein the cleaning element (10; 28) is arranged on a carrier element (03; 27) revolving substantially in the longitudinal direction of the roller (02), and the carrier element (03; 27) has a run (06) facing towards the roller (02) and a run (07) facing away from the roller (02), characterized in that the carrier element (03; 27) has cleaning elements (10; 28) only in part in the peripheral direction, and in a rest position all the cleaning elements (10; 28) are arranged on the run (07) facing away from the roller (02).
  2. An apparatus according to Claim 1, characterized in that the cleaning element (10; 28) is formed in the manner of a brush or brush head.
  3. An apparatus according to Claim 1, characterized in that the carrier element (03; 27) is formed in the manner of a conveyor, chain or belt.
  4. An apparatus according to Claim 3, characterized in that the carrier element (03; 27) is formed in the manner of a toothed belt.
  5. An apparatus according to Claim 1, characterized in that the carrier element (03; 27) is guided at both axial ends over guide elements (04; 05) in the manner of rollers, pulleys or toothed wheels, wherein at least one of the said guide elements (04; 05) can be driven.
  6. An apparatus according to Claim 5, characterized in that between the mutually opposing guide elements (04; 05) of the carrier elements (03; 27) a carrier-guide element (29) is provided in which the carrier elements (03; 27) are guided at least locally and are supported with respect to the roller (02) to be cleaned.
  7. An apparatus according to Claim 1, characterized in that the run (07) facing away from the roller (02) runs through at least one cleaning chamber (11, 12, 13, 14, 15) at least locally, in which the cleaning element (10; 28) is subjected to a cleaning procedure.
  8. An apparatus according to Claim 1, characterized in that the rollers (02) or cylinders are arranged in a rotary printing press.
EP03101552A 2000-02-28 2001-02-01 Device for cleaning a roller or a cylinder Expired - Lifetime EP1342575B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10009353 2000-02-28
DE10009353A DE10009353A1 (en) 2000-02-28 2000-02-28 Roller or cylinder cleaner has cleaning and support elements, and two stringers,
EP01913556A EP1259379B1 (en) 2000-02-28 2001-02-01 Device for cleaning a roller or a cylinder

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP01913556.5 Division 2001-02-01
EP01913556A Division EP1259379B1 (en) 2000-02-28 2001-02-01 Device for cleaning a roller or a cylinder

Publications (3)

Publication Number Publication Date
EP1342575A2 EP1342575A2 (en) 2003-09-10
EP1342575A3 EP1342575A3 (en) 2003-09-24
EP1342575B1 true EP1342575B1 (en) 2006-08-02

Family

ID=7632708

Family Applications (3)

Application Number Title Priority Date Filing Date
EP01913556A Expired - Lifetime EP1259379B1 (en) 2000-02-28 2001-02-01 Device for cleaning a roller or a cylinder
EP03101552A Expired - Lifetime EP1342575B1 (en) 2000-02-28 2001-02-01 Device for cleaning a roller or a cylinder
EP03101554A Expired - Lifetime EP1342576B1 (en) 2000-02-28 2001-02-01 Device for cleaning a roller or a cylinder

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01913556A Expired - Lifetime EP1259379B1 (en) 2000-02-28 2001-02-01 Device for cleaning a roller or a cylinder

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03101554A Expired - Lifetime EP1342576B1 (en) 2000-02-28 2001-02-01 Device for cleaning a roller or a cylinder

Country Status (5)

Country Link
EP (3) EP1259379B1 (en)
AT (3) ATE334826T1 (en)
AU (1) AU2001239151A1 (en)
DE (4) DE10009353A1 (en)
WO (1) WO2001064440A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2171631A (en) * 1935-07-08 1939-09-05 Celanese Corp Device for cleaning rotating cylinders
US3411444A (en) * 1966-04-22 1968-11-19 Oxy Dry Internat Ltd Blanket washing apparatus for use with printing presses
JPH03288756A (en) * 1990-04-02 1991-12-18 Tokyo Kikai Seisakusho Ltd Drag roller device
DE4426079A1 (en) * 1994-07-22 1996-01-25 Baldwin Gegenheimer Gmbh Device for cleaning rollers
US5568768A (en) * 1995-05-04 1996-10-29 Presstek, Inc. Cleaning apparatus for offset plates
DE19734103B4 (en) * 1997-08-07 2008-08-07 Koenig & Bauer Aktiengesellschaft Device for developing cylindrical surfaces

Also Published As

Publication number Publication date
EP1342575A2 (en) 2003-09-10
AU2001239151A1 (en) 2001-09-12
DE10009353A1 (en) 2001-09-20
EP1259379B1 (en) 2003-11-05
DE50100904D1 (en) 2003-12-11
EP1342575A3 (en) 2003-09-24
EP1342576A3 (en) 2003-09-24
EP1342576B1 (en) 2006-08-02
EP1342576A2 (en) 2003-09-10
DE50110645D1 (en) 2006-09-14
ATE334825T1 (en) 2006-08-15
EP1259379A1 (en) 2002-11-27
ATE334826T1 (en) 2006-08-15
WO2001064440A1 (en) 2001-09-07
DE50110646D1 (en) 2006-09-14
ATE253458T1 (en) 2003-11-15

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