EP1622771B1 - Device and method for cleaning a cylinder or a roller of a printing press - Google Patents

Device and method for cleaning a cylinder or a roller of a printing press Download PDF

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Publication number
EP1622771B1
EP1622771B1 EP04732910A EP04732910A EP1622771B1 EP 1622771 B1 EP1622771 B1 EP 1622771B1 EP 04732910 A EP04732910 A EP 04732910A EP 04732910 A EP04732910 A EP 04732910A EP 1622771 B1 EP1622771 B1 EP 1622771B1
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EP
European Patent Office
Prior art keywords
roller
cleaning
lever
reel
radius
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Expired - Lifetime
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EP04732910A
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German (de)
French (fr)
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EP1622771A1 (en
Inventor
Claus-Dieter Barrois
Günther Hoier
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KBA Notasys SA
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KBA Giori SA
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Publication date
Priority claimed from DE10342496A external-priority patent/DE10342496B4/en
Application filed by KBA Giori SA filed Critical KBA Giori SA
Publication of EP1622771A1 publication Critical patent/EP1622771A1/en
Application granted granted Critical
Publication of EP1622771B1 publication Critical patent/EP1622771B1/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
    • 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
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/244—Rewinding the cleaning cloth
    • 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
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/246—Pressing the cleaning cloth against the cylinder

Definitions

  • the invention relates to an apparatus and a method for cleaning a cylinder or a roll of a printing press with a detergent web, wherein a first supply roll for unwinding the detergent web and a second supply roll for winding the detergent web is provided for the cleaning agent web, wherein a winding device for the partial feed of the Detergent web with a drive device is rotatably driven, wherein a measuring device is provided which detects the radius of at least one supply roll and wherein an adjusting device is provided, whereby the amount of a respective rotational movement of the winding device in dependence on the detected radius of the supply roll is variable.
  • Such cleaning devices are used on printing machines to remove excess equipment, such as excess ink, from a cylinder or roller.
  • the terms cylinder and roller are therefore to be used below as synonyms.
  • From the DE 41 42 422 A1 is another cleaning device for guiding a cleaning agent web known.
  • the cleaning agent web is pressed with alternating contact pressure of the Anstell stressess against the corresponding cylinder, thereby ensuring a quasi-continuous feed.
  • a disadvantage of these known devices is that the feed of the cleaning agent web changes depending on the radius of the waste roll. As a result, in the case of a waste roll with a large radius, more cleaning agent web is conveyed along with each section-by-section feed of the cleaning agent web than is required for cleaning the roll or the cylinder. This unnecessary consumption of detergent web leads to relatively high operating costs.
  • US 2003/0075064 discloses an apparatus for cleaning a roll of a printing press with a cleaning web, wherein rollers are provided for unwinding and winding of the cleaning agent web for the cleaning web. In this device is not guaranteed that the feed section is conveyed by a constant length on.
  • the invention has for its object to provide an apparatus and a method for cleaning a cylinder or a roll of a printing press, wherein the consumption of detergent web as low as possible is held.
  • the object is achieved by a device of the type mentioned, in which the detergent web is pressed by means of a pressing device against the circumference of the cylinder or the roller, wherein the pressing means is adjustable by means of the drive means between a salaried working position and a parked rest position.
  • a process is carried out, wherein the detergent web is unwound from a first supply roll and intermittently wound on a second supply roll, wherein the detergent web per work cycle is transported by an approximately constant length, wherein the detergent web per work cycle between each one on the cylinder or the roller employed working position and a parked rest position is adjusted, and wherein the respective further transport takes place exclusively in the adjusting movement or only in the Abstellterrorism in only one direction.
  • the teaching according to the invention is based on the basic idea that the radius of a roll, in particular a waste roll, is detected, so that the winding device for winding the waste roll is then rotated only in each case to the extent that the required run length of the detergent web is wound onto the circumference of the waste roll. In each cleaning operation, only this run length is consumed and replaced by a fresh length to the next operation. As a result, this means that the rotational movement of the winding device can be changed in each section-by-section feed of the cleaning agent web as a function of the radius of the waste roll. At a small radius of the waste roll, the winding device must be a relatively large Rotation angle are further promoted to ensure the required feed of the detergent web. For a large radius of the waste roll, however, only a relatively small rotational movement of the winding device to ensure the corresponding feed of the detergent web is required.
  • the cleaning agent web is pressed against the circumference of the cylinder or the roller by means of a pressure jaw-like pressing device.
  • the pressing device should be adjustable between a salaried working position and a parked rest position. By this measure it can be achieved that the cylinder or the roller is not permanently cleaned, but a cleaning is performed only when adjusting the pressing device in the employees working position.
  • the drive device for adjustment the pressing device and the winding device of the waste roll is indirectly or directly driven to rotate.
  • the drive device for adjustment the pressing device and the winding device of the waste roll is indirectly or directly driven to rotate.
  • a freewheel device can be provided between the drive device for simultaneously driving the winding device and the pressing device and the winding device of the waste roll.
  • the adjusting movement of the drive device is transmitted only in one direction to the winding device. In the other direction, the freewheel runs free, so that the winding device is driven in only one direction of rotation.
  • the adjustment of the effective lever length of the lever mechanism can be assumed for example by an adjusting lever, at one end of a roller is rotatably mounted, and wherein the roller comes to rest on the periphery of the waste roll. By changing the radius of the waste roll of this lever is then changed in position, whereby by the Changing the position of the lever affects the effective lever length of the lever mechanism.
  • the device 01 shown in Fig. 1, z. B. a cleaning device 01 is used to clean a fixed in an inking ink roller 02.
  • a cleaning agent web 03 for example, a web of cleaning paper or a cleaning cloth, unwound from a supply roll 04.
  • a winding device 06 for example a drive spindle 06, is driven in an intermittently rotating manner, thereby forming a second supply roll 07, in particular a waste roll 07, on the winding device 06.
  • the supply roll 04 just changed and the waste roller 07 thus has its minimum radius, which essentially corresponds to the radius of the winding device 06, on.
  • a pressure device 08 which is designed in the manner of a pressure bar 08.
  • the pressing device 08 is fixedly connected to a control lever 09, which can be pivoted about an axis of rotation 12 by means of a drive device 11 which is designed in the manner of a pneumatic drive cylinder 11. By pivoting the control lever 09, the pressing device 08 can be employed on the ink roller 02.
  • the drive device 11 acts on the adjusting lever 13, 14 and 16, which together form a lever mechanism, on the winding device 06.
  • the pressing device 08 is employed on the ink roller 02 and the associated rotational movement of the actuating lever 16 is transmitted to the winding device 06, so that the cleaning agent web 03 is a piece wound on the waste roll 07. This is when hiring the cleaning agent web 03 to the ink roller 02 a respective fresh section of the cleaning agent web 03 available.
  • a spring element 18, in particular a tension spring 18 is provided.
  • the diameter of the waste roller 07 is detected by a roller 19, which is rotatably mounted at the end of a control lever 21.
  • the other end of the adjusting lever 21 is connected to the connecting axis between the adjusting levers 13 and 14. According to the radius of the waste roller 07, the adjusting lever 21 moves downwards or upwards and thereby correspondingly changes the effective lever length of the lever mechanism formed by the adjusting levers 13, 14 and 16.
  • the device 01 is shown in the subsequent process step, after the control rod 17 has been extended.
  • the detergent web 03 was a piece wound on the waste roll 07 and thus further promoted.
  • the pressing device 08 was turned by pivoting the adjusting lever 09 in a clockwise direction to the ink roller 02.
  • the position of the actuating lever 16 in the process state shown in FIG. 2 is indicated by dashed lines. It can be seen that due to the relatively large effective lever length of the lever mechanism during extension of the actuating rod 17, the adjusting lever 16 is pivoted about a relatively large angle. The feed length when forwarding the cleaning agent web 03, resulting from the radius of the waste roller 07 and the pivot angle of the control lever 16 is thereby obtained despite the relatively small radius of the waste roller 07 to a sufficiently high degree.
  • Fig. 3 the device 01 is shown in a process state in which the supply roll 04 almost completely is exhausted and the waste roller 07 has a correspondingly large radius. At the same time the control rod 17 is retracted and thus the pressing device 08 is turned off by the ink roller 02.
  • the device 01 is shown in the process state following in Fig. 3, after the pressing device 08 is employed by extending the control rod 17 to the ink roller 02. It can be seen that by reducing the effective lever length of the lever mechanism is achieved that at full extension of the control rod 17 of the lever 16 is driven only by a relatively small angle clockwise. Thus, it is ensured that despite the relatively large radius of the waste roller 07, the cleaning agent web 03 is advanced only by a longitudinal section whose length approximately corresponds to the length of the feed section corresponding to the feed between the process states shown in Fig. 1 and Fig. 2. This means that is achieved by the adjustment of the control lever 21, that despite the constant adjusting movement of the drive means 11 and despite the increase in the radius of the waste roll 07, the feed length can be kept substantially constant.
  • Fig. 5 the various parts of the device 01 are shown in cross-section from above, wherein the different parts do not correspond to the relative length scale due to the offset drawing representation.

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

Abstract

Device ( 01 ) and method for cleaning a cylinder ( 02 ) or a roller ( 02 ) of a printing machine using a cleaning agent web ( 03 ), wherein provided for the cleaning agent web ( 03 ) is a first supply roll ( 04 ) and a second supply roll ( 07 ), and wherein a winding device ( 06 ) for advancing the cleaning agent web ( 03 ) section by section can be driven in rotation. The radius of at least one supply roll ( 04; 07 ) is detected by a measuring device ( 19, 21 ) and the magnitude of the rotary movement of the winding device ( 06 ) as the cleaning agent web ( 03 ) is advanced section by section is changed as a function of the radius of the supply roll ( 04, 07 ).

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Reinigen eines Zylinders oder einer Walze einer Druckmaschine mit einer Reinigungsmittelbahn, wobei für die Reinigungsmittelbahn eine erste Vorratsrolle zum Abspulen der Reinigungsmittelbahn und eine zweite Vorratsrolle zum Aufspulen der Reinigungsmittelbahn vorgesehen ist, wobei eine Spuleinrichtung zum abschnittsweisen Vorschub der Reinigungsmittelbahn mit einer Antriebseinrichtung drehbeweglich antreibbar ist, wobei eine Messeinrichtung vorgesehen ist, die den Radius mindestens einer Vorratsrolle erfasst und wobei eine Stelleinrichtung vorgesehen ist, womit der Betrag einer jeweiligen Drehbewegung der Spuleinrichtung in Abhängigkeit des erfassten Radius der Vorratsrolle veränderbar ist.The invention relates to an apparatus and a method for cleaning a cylinder or a roll of a printing press with a detergent web, wherein a first supply roll for unwinding the detergent web and a second supply roll for winding the detergent web is provided for the cleaning agent web, wherein a winding device for the partial feed of the Detergent web with a drive device is rotatably driven, wherein a measuring device is provided which detects the radius of at least one supply roll and wherein an adjusting device is provided, whereby the amount of a respective rotational movement of the winding device in dependence on the detected radius of the supply roll is variable.

Solche Reinigungsvorrichtungen werden an Druckmaschinen eingesetzt, um überschüssige Betriebsmittel, beispielsweise überschüssige Druckfarbe, von einem Zylinder oder einer Walze abzunehmen. Die Begriffe Zylinder und Walze sollen deshalb nachfolgend als Synonyme verwendet werden.Such cleaning devices are used on printing machines to remove excess equipment, such as excess ink, from a cylinder or roller. The terms cylinder and roller are therefore to be used below as synonyms.

Aus der DE 43 06 676 A1 ist eine derartige Reinigungsvorrichtung mit zwei Spindeln bekannt, wobei auf der einen Spindel die Vorratsrolle mit der sauberen Reinigungsmittelbahn und auf der anderen Spindel die Abfallrolle mit der verbrauchten Reinigungsmittelbahn gelagert ist. Zum Antrieb der Spindeln sind Elektromotoren vorgesehen, so dass die Reinigungsmittelbahn entsprechend einem Steuerungsprogramm abschnittsweise weitergefördert und schließlich nach vollständigem Verbrauch der Vorratsrolle zurückgespult werden kann.From the DE 43 06 676 A1 is such a cleaning device with two spindles known, wherein on one spindle, the supply roll with the clean detergent web and on the other spindle, the waste roll is stored with the spent detergent web. Electric motors are provided for driving the spindles so that the cleaning agent web can be conveyed in sections according to a control program and finally rewound after complete consumption of the supply roll.

Aus der US 5,275,104 ist ebenfalls eine Reinigungsvorrichtung bekannt, bei der die Abfallrolle durch einen Elektromotor schrittweise und im Dauerbetrieb angetrieben wird, während die Reinigungsbahn durch eine Walze pneumatisch gegen einen zu reinigenden Zylinder gedrückt wird.From the US 5,275,104 Also, a cleaning device is known in which the waste roll is driven by an electric motor stepwise and in continuous operation, while the cleaning path is pneumatically pressed by a roller against a cylinder to be cleaned.

Aus der DE 41 42 422 A1 ist eine weitere Reinigungsvorrichtung zur Führung einer Reinigungsmittelbahn bekannt. Bei dieser Vorrichtung wird die Reinigungsmittelbahn mit wechselnder Anpressung des Anstellkörpers gegen den entsprechenden Zylinder angedrückt, um dadurch einen quasi kontinuierlichen Vorschub zu gewährleisten.From the DE 41 42 422 A1 is another cleaning device for guiding a cleaning agent web known. In this device, the cleaning agent web is pressed with alternating contact pressure of the Anstellkörpers against the corresponding cylinder, thereby ensuring a quasi-continuous feed.

Nachteilig an diesen bekannten Vorrichtungen ist es, dass sich der Vorschub der Reinigungsmittelbahn in Abhängigkeit des Radius der Abfallrolle ändert. Dies führt dazu, dass bei einer Abfallrolle mit großem Radius mit jedem abschnittsweisen Vorschub der Reinigungsmittelbahn mehr Reinigungsmittelbahn als zur Reinigung der Walze oder des Zylinders erforderlich weitergefördert wird. Dieser unnötige Verbrauch von Reinigungsmittelbahn führt zu relativ hohen Betriebskosten.A disadvantage of these known devices is that the feed of the cleaning agent web changes depending on the radius of the waste roll. As a result, in the case of a waste roll with a large radius, more cleaning agent web is conveyed along with each section-by-section feed of the cleaning agent web than is required for cleaning the roll or the cylinder. This unnecessary consumption of detergent web leads to relatively high operating costs.

Weiter ist aus der US 5,150,650 eine Reinigungsvorrichtung der eingangs genannten Art bekannt, bei der die Spuleinrichtung zum Aufspulen der Abfallrolle mehrmals pro Reinigungsvorgang pneumatisch angetrieben wird, um dadurch den Vorschub der Reinigungsmittelbahn zu gewährleisten, während sie über einen Kreisbogen an dem zu reinigenden Zylinder angedrückt bleibt. Jeder Reinigungsvorgang verbraucht eine grosse Länge der Reinigungsmittelbahn.Next is from the US 5,150,650 a cleaning device of the type mentioned, in which the winding device for winding the waste roll is pneumatically driven several times per cleaning operation, thereby to ensure the advance of the detergent web, while remaining pressed on a circular arc on the cylinder to be cleaned. Each cleaning process consumes a large length of the detergent web.

US 2003/0075064 offenbart eine Vorrichtung zum Reinigen einer Walze einer Druckmaschine mit einer Reinigungsbahn, wobei für die Reinigungsbahn Rollen zum Abspulen und Aufspulen der Reinugungsmittelbahn vorgesehen sind. In dieser Vorrichtung ist nicht gewährleistet, dass der Vorschubabschnitt um eine konstante Länge weitergefördert wird. US 2003/0075064 discloses an apparatus for cleaning a roll of a printing press with a cleaning web, wherein rollers are provided for unwinding and winding of the cleaning agent web for the cleaning web. In this device is not guaranteed that the feed section is conveyed by a constant length on.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zum Reinigen eines Zylinders oder einer Walze einer Druckmaschine zu schaffen, wobei der Verbrauch an Reinigungsmittelbahn so gering wie möglich gehalten wird.The invention has for its object to provide an apparatus and a method for cleaning a cylinder or a roll of a printing press, wherein the consumption of detergent web as low as possible is held.

Die Aufgabe wird erfindungsgemäß durch eine Vorrichtung der eingangs genannten Art gelöst, bei der die Reinigungsmittelbahn mittels einer Andrückeinrichtung gegen den Umfang des Zylinders oder der Walze andrückbar ist, wobei die Andrückeinrichtung auch mittels der Antriebseinrichtung zwischen einer angestellten Arbeitsposition und einer abgestellten Ruheposition verstellbar ist.The object is achieved by a device of the type mentioned, in which the detergent web is pressed by means of a pressing device against the circumference of the cylinder or the roller, wherein the pressing means is adjustable by means of the drive means between a salaried working position and a parked rest position.

Erfindungsgemäss wird ein Verfahren ausgeführt, wobei die Reinigungsmittelbahn von einer ersten Vorratsrolle abgespult und auf einer zweiten Vorratsrolle taktweise aufgespult wird, wobei die Reinigungsmittelbahn pro Arbeitstakt um eine annähernd konstante Länge weitertransportiert wird, wobei die Reinigungsmittelbahn pro Arbeitstakt jeweils zwischen einer an dem Zylinder oder der Walze angestellten Arbeitsposition und einer abgestellten Ruheposition verstellt wird, und wobei der jeweilige Weitertransport ausschließlich bei der Anstellbewegung oder ausschließlich bei der Abstellbewegung in nur eine Drehrichtung erfolgt.According to the invention, a process is carried out, wherein the detergent web is unwound from a first supply roll and intermittently wound on a second supply roll, wherein the detergent web per work cycle is transported by an approximately constant length, wherein the detergent web per work cycle between each one on the cylinder or the roller employed working position and a parked rest position is adjusted, and wherein the respective further transport takes place exclusively in the adjusting movement or only in the Abstellbewegung in only one direction.

Die erfindungsgemäße Lehre beruht auf dem Grundgedanken, dass der Radius einer Rolle, insbesondere einer Abfallrolle, erfasst wird, so dass die Spuleinrichtung zum Aufspulen der Abfallrolle dann nur jeweils soweit gedreht wird, dass die erforderliche Lauflänge der Reinigungsmittelbahn auf den Umfang der Abfallrolle aufgespult wird. Bei jedem Reinigungsarbeitsgang wird jeweils nur diese Lauflänge verbraucht und zum nächsten Arbeitsgang durch eine frische Länge ersetzt. Im Ergebnis bedeutet dies, dass die Drehbewegung der Spuleinrichtung bei jedem abschnittsweisen Vorschub der Reinigungsmittelbahn in Abhängigkeit des Radius der Abfallrolle verändert werden kann. Bei kleinem Radius der Abfallrolle muss die Spuleinrichtung um einen relativ großen Drehwinkel weitergefördert werden, um den erforderlichen Vorschub der Reinigungsmittelbahn zu gewährleisten. Bei großem Radius der Abfallrolle dagegen ist nur eine relativ kleine Drehbewegung der Spuleinrichtung zur Gewährleistung des entsprechenden Vorschubs der Reinigungsmittelbahn erforderlich.The teaching according to the invention is based on the basic idea that the radius of a roll, in particular a waste roll, is detected, so that the winding device for winding the waste roll is then rotated only in each case to the extent that the required run length of the detergent web is wound onto the circumference of the waste roll. In each cleaning operation, only this run length is consumed and replaced by a fresh length to the next operation. As a result, this means that the rotational movement of the winding device can be changed in each section-by-section feed of the cleaning agent web as a function of the radius of the waste roll. At a small radius of the waste roll, the winding device must be a relatively large Rotation angle are further promoted to ensure the required feed of the detergent web. For a large radius of the waste roll, however, only a relatively small rotational movement of the winding device to ensure the corresponding feed of the detergent web is required.

Besonders vorteilhaft ist es dabei, wenn der Betrag der Drehbewegung der Spuleinrichtung beim abschnittsweisen Vorschub der Reinigungsmittelbahn derart verändert wird, dass die Länge des Vorschubabschnitts unabhängig vom Radius der Abfallrolle jeweils annähernd konstant bleibt. Durch diese Maßnahme wird gewährleistet, dass jeweils ein Vorschubabschnitt mit konstanter Länge weitergefördert wird, wobei die Länge des Vorschubabschnittes gerade so zu wählen ist, dass eine ausreichende Reinigungswirkung erzielt wird.It is particularly advantageous if the amount of rotational movement of the winding device is changed in sections of the feed line cleaning such that the length of the feed section regardless of the radius of the waste roll remains approximately constant. By this measure it is ensured that in each case a feed section is conveyed with a constant length, wherein the length of the feed section is just to be chosen so that a sufficient cleaning effect is achieved.

Nach einer bevorzugten Ausführungsform der Erfindung wird die Reinigungsmittelbahn mittels einer andrückrakelartigen Andrückeinrichtung gegen den Umfang des Zylinders oder der Walze gedrückt. Durch diese Maßnahme wird die mit der Reinigungsmittelbahn erzielbare Reinigungswirkung stark erhöht und der Verbrauch vermindert.According to a preferred embodiment of the invention, the cleaning agent web is pressed against the circumference of the cylinder or the roller by means of a pressure jaw-like pressing device. By this measure, the cleaning effect achievable with the detergent web is greatly increased and the consumption is reduced.

Die Andrückeinrichtung soll dabei zwischen einer angestellten Arbeitsposition und einer abgestellten Ruheposition verstellbar sein. Durch diese Maßnahme kann erreicht werden, dass der Zylinder oder die Walze nicht permanent gereinigt wird, sondern eine Reinigung nur bei Verstellung der Andrückeinrichtung in die angestellte Arbeitsposition durchgeführt wird.The pressing device should be adjustable between a salaried working position and a parked rest position. By this measure it can be achieved that the cylinder or the roller is not permanently cleaned, but a cleaning is performed only when adjusting the pressing device in the employees working position.

Um einen möglichst einfachen Aufbau der Reinigungsvorrichtung zu erreichen ist es besonders vorteilhaft, wenn mit der Antriebseinrichtung zur Verstellung der Andrückeinrichtung auch die Spuleinrichtung der Abfallrolle mittelbar oder unmittelbar drehbeweglich antreibbar ist. Im Ergebnis wird dadurch erreicht, dass mit nur einer Antriebseinrichtung, beispielsweise einem pneumatischen oder hydraulischen Stellzylinder, sowohl die Spuleinrichtung der Abfallrolle als auch die Andrückeinrichtung angetrieben wird.In order to achieve the simplest possible structure of the cleaning device, it is particularly advantageous if with the drive device for adjustment the pressing device and the winding device of the waste roll is indirectly or directly driven to rotate. As a result, it is achieved that with only one drive device, for example a pneumatic or hydraulic actuating cylinder, both the winding device of the waste roller and the pressing device is driven.

Um einen intermittierenden Vorschub der Reinigungsmittelbahn zwischen den verschiedenen Reinigungszyklen gewährleisten zu können, kann zwischen der Antriebseinrichtung zum gleichzeitigen Antrieb der Spuleinrichtung und der Andrückeinrichtung und der Spuleinrichtung der Abfallrolle eine Freilaufeinrichtung vorgesehen sein. Durch diese Freilaufeinrichtung wird die Stellbewegung der Antriebseinrichtung nur in einer Richtung auf die Spuleinrichtung übertragen. In der anderen Richtung läuft der Freilauf frei, so dass die Spuleinrichtung in nur einem Drehsinn angetrieben wird.In order to be able to ensure an intermittent feed of the cleaning agent web between the various cleaning cycles, a freewheel device can be provided between the drive device for simultaneously driving the winding device and the pressing device and the winding device of the waste roll. By this freewheel device, the adjusting movement of the drive device is transmitted only in one direction to the winding device. In the other direction, the freewheel runs free, so that the winding device is driven in only one direction of rotation.

Besonders einfache Reinigungsvorrichtungen können durch Einsatz von mechanischen Hebelwerken realisiert werden. Zur Gewährleistung der Funktion ist es dabei erforderlich, dass die effektive Hebellänge des Hebelwerks in Abhängigkeit des Radius der Abfallrolle veränderbar ist. Dies bedeutet mit anderen Worten, dass die erforderliche Veränderung des Antriebsdrehwinkels durch Veränderung der effektiven Hebellänge des Hebelwerks gewährleistet wird.Particularly simple cleaning devices can be realized by using mechanical lever mechanisms. To ensure the function, it is necessary that the effective lever length of the lever mechanism is variable depending on the radius of the waste roll. In other words, this means that the required change in the drive rotational angle is ensured by changing the effective lever length of the lever mechanism.

Die Verstellung der effektiven Hebellänge des Hebelwerkes kann beispielsweise durch einen Stellhebel übernommen werden, an dessen einem Ende eine Laufrolle drehbar gelagert ist, und wobei die Laufrolle am Umfang der Abfallrolle zur Anlage kommt. Durch Änderung des Radius der Abfallrolle wird dieser Stellhebel dann in seiner Position verändert, wobei durch die Änderung der Position des Stellhebels die effektive Hebellänge des Hebelwerks beeinflusst wird.The adjustment of the effective lever length of the lever mechanism can be assumed for example by an adjusting lever, at one end of a roller is rotatably mounted, and wherein the roller comes to rest on the periphery of the waste roll. By changing the radius of the waste roll of this lever is then changed in position, whereby by the Changing the position of the lever affects the effective lever length of the lever mechanism.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben.An embodiment of the invention is illustrated in the drawings and will be described in more detail below.

Es zeigen:

  • Fig. 1: eine Reinigungsvorrichtung in einem ersten Prozesszustand in seitlicher Ansicht;
  • Fig. 2: die Reinigungsvorrichtung gemäß Fig. 1 in einem zweiten Prozesszustand;
  • Fig. 3: die Reinigungsvorrichtung gemäß Fig. 1 in einem dritten Prozesszustand;
  • Fig. 4: die Reinigungsvorrichtung gemäß Fig. 1 in einem vierten Prozesszustand;
  • Fig. 5: die Reinigungsvorrichtung gemäß Fig. 1 im Querschnitt von oben.
Show it:
  • 1 shows a cleaning device in a first process state in a side view;
  • FIG. 2 shows the cleaning device according to FIG. 1 in a second process state; FIG.
  • FIG. 3 shows the cleaning device according to FIG. 1 in a third process state; FIG.
  • FIG. 4 shows the cleaning device according to FIG. 1 in a fourth process state; FIG.
  • 5 shows the cleaning device according to FIG. 1 in cross section from above.

Die in Fig. 1 dargestellte Vorrichtung 01, z. B. eine Reinigungsvorrichtung 01, dient zur Reinigung einer in einem Farbwerk feststehend gelagerten Farbwalze 02. In der Vorrichtung 01 wird eine Reinigungsmittelbahn 03, beispielsweise eine Bahn aus Reinigungspapier oder einem Reinigungstuch, von einer Vorratsrolle 04 abgespult. Zum Vorschub der Reinigungsmittelbahn 03 wird eine Spuleinrichtung 06, beispielsweise eine Antriebsspindel 06, intermittierend drehend angetrieben, wobei sich dadurch auf der Spuleinrichtung 06 eine zweite Vorratsrolle 07, insbesondere eine Abfallrolle 07, bildet. Bei dem in Fig. 1 dargestellten Prozesszustand ist die Vorratsrolle 04 gerade neu gewechselt und die Abfallrolle 07 weist somit ihren minimalen Radius, der im Wesentlichen dem Radius der Spuleinrichtung 06 entspricht, auf.The device 01 shown in Fig. 1, z. B. a cleaning device 01, is used to clean a fixed in an inking ink roller 02. In the device 01, a cleaning agent web 03, for example, a web of cleaning paper or a cleaning cloth, unwound from a supply roll 04. For advancing the cleaning agent web 03, a winding device 06, for example a drive spindle 06, is driven in an intermittently rotating manner, thereby forming a second supply roll 07, in particular a waste roll 07, on the winding device 06. In that shown in Fig. 1 Process state, the supply roll 04 just changed and the waste roller 07 thus has its minimum radius, which essentially corresponds to the radius of the winding device 06, on.

Um die Reinigungswirkung der Reinigungsmittelbahn 03 zu erhöhen, wird diese über eine Andrückeinrichtung 08, die in der Art eines Andrückrakels 08 ausgebildet ist, geführt. Die Andrückeinrichtung 08 ist fest mit einem Stellhebel 09 verbunden, der mittels einer Antriebseinrichtung 11, die in der Art eines pneumatischen Antriebszylinders 11 ausgebildet ist, um eine Drehachse 12 verschwenkt werden kann. Durch Verschwenken des Stellhebels 09 kann die Andrückeinrichtung 08 an die Farbwalze 02 angestellt werden.In order to increase the cleaning effect of the cleaning agent web 03, it is guided via a pressure device 08, which is designed in the manner of a pressure bar 08. The pressing device 08 is fixedly connected to a control lever 09, which can be pivoted about an axis of rotation 12 by means of a drive device 11 which is designed in the manner of a pneumatic drive cylinder 11. By pivoting the control lever 09, the pressing device 08 can be employed on the ink roller 02.

Die Antriebseinrichtung 11 wirkt über die Stellhebel 13, 14 und 16, die gemeinsam ein Hebelwerk bilden, auf die Spuleinrichtung 06. Dazu umfasst das eine Ende des Stellhebels 16 die Spuleinrichtung 06 mit einer Freilaufeinrichtung 15. Im Ergebnis wird dadurch erreicht, dass bei Ausfahren der Stellstange 17 der Antriebseinrichtung 11, die Andrückeinrichtung 08 an die Farbwalze 02 angestellt und die damit verbundene Drehbewegung des Stellhebels 16 auf die Spuleinrichtung 06 übertragen wird, so dass die Reinigungsmittelbahn 03 ein stückweit auf die Abfallrolle 07 aufgespult wird. Damit steht beim Anstellen der Reinigungsmittelbahn 03 an die Farbwalze 02 ein jeweils frischer Abschnitt der Reinigungsmittelbahn 03 zur Verfügung.The drive device 11 acts on the adjusting lever 13, 14 and 16, which together form a lever mechanism, on the winding device 06. For this purpose, the one end of the control lever 16, the winding device 06 with a freewheel device 15. As a result, it is achieved that when extending the Control rod 17 of the drive device 11, the pressing device 08 is employed on the ink roller 02 and the associated rotational movement of the actuating lever 16 is transmitted to the winding device 06, so that the cleaning agent web 03 is a piece wound on the waste roll 07. This is when hiring the cleaning agent web 03 to the ink roller 02 a respective fresh section of the cleaning agent web 03 available.

Wird die Stellstange 17 anschließend wieder eingefahren und die Andrückeinrichtung 08 damit abgestellt, so läuft die Freilaufeinrichtung 15 frei, so dass die Drehbewegung des Stellhebels 16 entgegen dem Uhrzeigersinn nicht auf die Spuleinrichtung 06 übertragen wird.If the adjusting rod 17 is then retracted again and the pressure device 08 is turned off, then the freewheel device 15 runs free, so that the rotational movement of the actuating lever 16 is not transmitted to the winding device 06 in the counterclockwise direction.

Um ein spielfreies Anliegen des Hebelwerkes aus den Stellhebeln 13, 14 und 16 jederzeit gewährleisten zu können, ist zwischen dem Stellhebel 09 und der Verbindungsachse zwischen den Stellhebeln 13 und 14 eine Federelement 18, insbesondere eine Spannfeder 18, vorgesehen.In order to ensure a play-free concern of the lever mechanism from the levers 13, 14 and 16 at any time, is between the actuating lever 09 and the connecting axis between the adjusting levers 13 and 14, a spring element 18, in particular a tension spring 18 is provided.

Der Durchmesser der Abfallrolle 07 wird mit einer Laufrolle 19 erfasst, die am Ende eines Stellhebels 21 drehbar gelagert ist. Das andere Ende des Stellhebels 21 ist mit der Verbindungsachse zwischen den Stellhebeln 13 und 14 verbunden. Entsprechend dem Radius der Abfallrolle 07 wandert der Stellhebel 21 nach unten bzw. nach oben und verändert dadurch entsprechend die effektive Hebellänge des aus den Stellhebeln 13, 14 und 16 gebildeten Hebelwerks.The diameter of the waste roller 07 is detected by a roller 19, which is rotatably mounted at the end of a control lever 21. The other end of the adjusting lever 21 is connected to the connecting axis between the adjusting levers 13 and 14. According to the radius of the waste roller 07, the adjusting lever 21 moves downwards or upwards and thereby correspondingly changes the effective lever length of the lever mechanism formed by the adjusting levers 13, 14 and 16.

In Fig. 2 ist die Vorrichtung 01 im nachfolgenden Prozessschritt dargestellt, nachdem die Stellstange 17 ausgefahren wurde. Durch Verstellung des Stellhebels 16 im Uhrzeigersinn wurde die Reinigungsmittelbahn 03 ein stückweit auf die Abfallrolle 07 aufgespult und damit weitergefördert. Zugleich wurde die Andrückeinrichtung 08 durch Verschwenken des Stellhebels 09 in Uhrzeigersinn an die Farbwalze 02 angestellt. In Fig. 1 ist die Stellung des Stellhebels 16 im Prozesszustand gemäß Fig. 2 strichliniert angedeutet. Man erkennt, dass aufgrund der relativ großen effektiven Hebellänge des Hebelwerkes beim Ausfahren der Stellstange 17 der Stellhebel 16 um einen relativ großen Winkel verschwenkt wird. Die Vorschublänge beim Weiterfördern der Reinigungsmittelbahn 03, die sich aus dem Radius der Abfallrolle 07 und dem Schwenkwinkel des Stellhebels 16 ergibt, wird dadurch trotz des relativ geringen Radius der Abfallrolle 07 auf einem ausreichend hohen Maß erhalten.In Fig. 2, the device 01 is shown in the subsequent process step, after the control rod 17 has been extended. By adjusting the control lever 16 in the clockwise direction, the detergent web 03 was a piece wound on the waste roll 07 and thus further promoted. At the same time, the pressing device 08 was turned by pivoting the adjusting lever 09 in a clockwise direction to the ink roller 02. In Fig. 1, the position of the actuating lever 16 in the process state shown in FIG. 2 is indicated by dashed lines. It can be seen that due to the relatively large effective lever length of the lever mechanism during extension of the actuating rod 17, the adjusting lever 16 is pivoted about a relatively large angle. The feed length when forwarding the cleaning agent web 03, resulting from the radius of the waste roller 07 and the pivot angle of the control lever 16 is thereby obtained despite the relatively small radius of the waste roller 07 to a sufficiently high degree.

In Fig. 3 ist die Vorrichtung 01 in einem Prozesszustand dargestellt, bei dem die Vorratsrolle 04 beinahe vollständig erschöpft ist und die Abfallrolle 07 einen entsprechend großen Radius aufweist. Zugleich ist die Stellstange 17 eingefahren und somit die Andrückeinrichtung 08 von der Farbwalze 02 abgestellt.In Fig. 3, the device 01 is shown in a process state in which the supply roll 04 almost completely is exhausted and the waste roller 07 has a correspondingly large radius. At the same time the control rod 17 is retracted and thus the pressing device 08 is turned off by the ink roller 02.

Aufgrund des großen Radius der Abfallrolle 07 ist der Stellhebel 21 weit nach unten gedrückt, wodurch sich die effektive Hebellänge des Hebelwerks aus den Stellhebeln 13, 14 und 16 entsprechend verringert.Due to the large radius of the waste roller 07, the adjusting lever 21 is pushed far down, whereby the effective lever length of the lever mechanism from the adjusting levers 13, 14 and 16 is reduced accordingly.

In Fig. 4 ist die Vorrichtung 01 in dem an den in Fig. 3 nachfolgenden Prozesszustand dargestellt, nachdem die Andrückeinrichtung 08 durch Ausfahren der Stellstange 17 an die Farbwalze 02 angestellt ist. Man erkennt, dass durch die Verringerung der effektiven Hebellänge des Hebelwerkes erreicht wird, dass bei vollem Ausfahren der Stellstange 17 der Stellhebel 16 nur um einen relativ kleinen Winkel im Uhrzeigersinn angetrieben wird. Somit ist gewährleistet, dass trotz des relativ großen Radius der Abfallrolle 07 die Reinigungsmittelbahn 03 nur um einen Längenabschnitt vorgeschoben wird, dessen Länge annähernd der Länge des Vorschubabschnittes entsprechend dem Vorschub zwischen den in Fig. 1 und Fig. 2 dargestellten Prozesszuständen entspricht. Das heißt, dass durch die Verstellung des Stellhebels 21 erreicht wird, dass trotz der konstanten Stellbewegung der Antriebseinrichtung 11 und trotz der Vergrößerung des Radius der Abfallrolle 07 die Vorschublänge im Wesentlichen konstant gehalten werden kann.In Fig. 4, the device 01 is shown in the process state following in Fig. 3, after the pressing device 08 is employed by extending the control rod 17 to the ink roller 02. It can be seen that by reducing the effective lever length of the lever mechanism is achieved that at full extension of the control rod 17 of the lever 16 is driven only by a relatively small angle clockwise. Thus, it is ensured that despite the relatively large radius of the waste roller 07, the cleaning agent web 03 is advanced only by a longitudinal section whose length approximately corresponds to the length of the feed section corresponding to the feed between the process states shown in Fig. 1 and Fig. 2. This means that is achieved by the adjustment of the control lever 21, that despite the constant adjusting movement of the drive means 11 and despite the increase in the radius of the waste roll 07, the feed length can be kept substantially constant.

In Fig. 5 sind die verschiedenen Teile der Vorrichtung 01 im Querschnitt von oben dargestellt, wobei die verschiedenen Teile aufgrund der versetzten Zeichnungsdarstellung nicht dem relativen Längenmaßstab entsprechen.In Fig. 5, the various parts of the device 01 are shown in cross-section from above, wherein the different parts do not correspond to the relative length scale due to the offset drawing representation.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101
Vorrichtung, ReinigungsvorrichtungDevice, cleaning device
0202
Walze, Zylinder, FarbwalzeRoller, cylinder, ink roller
0303
ReinigungsmittelbahnCleaning product web
0404
Vorratsrollesupply roll
0505
--
0606
Spuleinrichtung, AntriebseinrichtungWinding device, drive device
0707
Vorratsrolle, AbfallrolleSupply roll, waste roll
0808
Andrückeinrichtung, AndrückrakelPressing device, pressure squeegee
0909
Stellhebellever
1010
--
1111
Antriebseinrichtung, AntriebszylinderDrive device, drive cylinder
1212
Drehachseaxis of rotation
1313
Stellhebellever
1414
Stellhebellever
1515
FreilaufeinrichtungFreewheel device
1616
Stellhebellever
1717
Stellstangecontrol rod
1818
Federelement, SpannfederSpring element, tension spring
1919
Laufrollecaster
2020
--
2121
Stellhebellever

Claims (14)

  1. A device (01) for cleaning a cylinder (02) or a roller (02) of a printing machine with a cleaning product web (03), wherein for the cleaning product web (03), provision is made for a first stock reel (04) for unwinding the cleaning product web (03) and a second stock reel (07) for taking up the cleaning product web (03), wherein a reel device (06) for progressive forward feed of the cleaning product web (03) can be driven in rotation by a driving device (11), wherein the cleaning product web (03) can be pressed against the circumference of the cylinder (02) or the roller (02) by means of a pressure device (08) and wherein the pressure device (08) is also adjustable by means of the driving device (11) between an engaged working position and disengaged resting position, characterised in that provision is made for a measuring device (19, 21), which registers at least the radius of a stock reel (04; 07) and provision is made for an adjustment device (13, 14, 16), with the amount of a respective rotary movement of the reel device (06) being modifiable depending on the registered radius of the stock reel (04; 07).
  2. A device according to claim 1, characterised in that the measuring device (19, 21) registers the radius of the second stock reel (07).
  3. A device according to claim 2, characterised in that the adjustment device (13, 14, 16) is designed such that the amount of a rotary movement of the reel device (06) is modified in such a way that the length of a respective forward feed section remains approximately constant regardless of the radius of the second stock reel (07).
  4. A device according to claim 1, 2 or 3, characterised in that the pressure device (08) is designed in the form of a pressure blade (08) which can be pivoted by means of the driving device (11).
  5. A device according to claim 1, 2, 3 or 4, characterised in that between the driving device (11) and the reel device (06) of the second stock reel (07), provision is made for a free running device so that the second stock reel is driven in only one direction of rotation exclusively during the engagement movement or exclusively during the disengagement movement of the pressure device (08).
  6. A device according to claim 5, characterised in that provision is made for a lever mechanism (13, 14, 16) with at least two adjustment levers (13, 14, 16) between the driving device (11) and the free running device, wherein the effective leverage length of the lever mechanism (13, 14, 16) can be modified depending on the radius of the second stock reel (07).
  7. A device according to claim 6, characterised in that, on the lever mechanism (13, 14, 16), provision is made for an adjustment lever (21) serving as a measuring device, on the end of which adjustment lever (21) a roller (19) is mounted capable of rotation on bearings, wherein the roller (19) can rest on the circumference of the second stock reel (07) and the effective leverage length of the lever device (13, 14, 16) of the second stock reel (07) is modifiable on modification of the radius of the second stock reel (07) by adjustment of the adjustment lever (21).
  8. A device according to any of the preceding claims, characterised in that the driving device (11) is designed in the manner of a hydraulic or pneumatic drive cylinder, the adjusting rod (17) of which acts on the lever mechanism (13, 14, 16).
  9. A device according to any of the preceding claims, characterised in that the pressure device (08) is firmly linked to an adjusting lever (09) which can be pivoted by means of the driving device (11).
  10. A device according to claim 6, 7, 8 or 9, characterised in that the lever mechanism (13, 14, 16) is pretensioned with a spring element (18).
  11. A device according to claims 9 and 10, characterised in that provision is made for the spring element (18) between the adjusting lever (09) firmly connected to the pressure device (08) and the lever mechanism (13, 14, 16).
  12. A device according to claim 1, characterised in that the cleaning product web (03) can be employed on a roller (02), particularly a stationary roller (02) of an inking system.
  13. A method for cleaning a cylinder (02) or a roller (02) of a printing machine with a cleaning product web (03), wherein the cleaning product web (03) is unrolled from a first stock reel (04) and is wound stepwise on to a second stock reel (07), wherein the cleaning product web (03) is shifted respectively per working cycle between a working position engaged on the cylinder (02) or roller (02), and a disengaged resting position and wherein the respective further travel occurs in only one direction of rotation exclusively during engagement or exclusively on disengagement, characterised in that the cleaning web is conveyed by an approximately constant length per working cycle.
  14. A procedure according to claim 13, characterised in that the respective further travel occurs on adjustment from the disengaged resting position to the set working position.
EP04732910A 2003-05-14 2004-05-14 Device and method for cleaning a cylinder or a roller of a printing press Expired - Lifetime EP1622771B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10321804 2003-05-14
DE10342496A DE10342496B4 (en) 2003-05-14 2003-09-12 Device for cleaning a cylinder or a roller of a printing machine
PCT/CH2004/000293 WO2004101283A1 (en) 2003-05-14 2004-05-14 Device and method for cleaning a cylinder or a roller of a printing press

Publications (2)

Publication Number Publication Date
EP1622771A1 EP1622771A1 (en) 2006-02-08
EP1622771B1 true EP1622771B1 (en) 2007-06-27

Family

ID=33453858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04732910A Expired - Lifetime EP1622771B1 (en) 2003-05-14 2004-05-14 Device and method for cleaning a cylinder or a roller of a printing press

Country Status (6)

Country Link
US (1) US20060236882A1 (en)
EP (1) EP1622771B1 (en)
JP (1) JP2006528567A (en)
AT (1) ATE365635T1 (en)
DE (1) DE502004004191D1 (en)
WO (1) WO2004101283A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1934054B1 (en) 2005-10-11 2011-01-26 Silverbrook Research Pty. Ltd Printhead maintenance assembly comprising maintenance roller and cleaning mechanism
WO2007065188A1 (en) * 2005-12-05 2007-06-14 Silverbrook Research Pty Ltd Printhead maintenance station having maintenance belt
US7448724B2 (en) 2005-12-05 2008-11-11 Silverbrook Research Pty Ltd Method of maintaining a printhead using a maintenance belt
US7452052B2 (en) 2005-12-05 2008-11-18 Silverbrook Research Pty Ltd Printhead maintenance assembly having maintenance belt
US7455383B2 (en) 2005-12-05 2008-11-25 Silverbrook Research Pty Ltd Printhead maintenance station having maintenance belt with belt-cleaning station
US7441864B2 (en) 2005-12-05 2008-10-28 Silverbrook Research Pty Ltd Method of maintaining a printhead using a maintenance belt with cleaning station
US7445311B2 (en) 2005-12-05 2008-11-04 Silverbrook Research Pty Ltd Printhead maintenance station having maintenance belt

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JPH0798397B2 (en) * 1986-08-02 1995-10-25 大日本印刷株式会社 Cleaning machine for printing machine cylinder
JPH02169252A (en) * 1988-12-23 1990-06-29 Nippon Baldwin Kk Cylinder cleaning device of printer
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JPH03189156A (en) * 1989-12-19 1991-08-19 Nippon Baldwin Kk Cylinder washer of printer
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JP3604785B2 (en) * 1995-07-26 2004-12-22 株式会社小森コーポレーション Printing machine cylinder cleaning device
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DE10018425A1 (en) * 2000-04-08 2001-10-11 Baldwin Grafotec Gmbh Reel core for cleaning cloth for print cylinder has a sprung edge to grip the rolled material with a simple release action

Also Published As

Publication number Publication date
DE502004004191D1 (en) 2007-08-09
ATE365635T1 (en) 2007-07-15
WO2004101283A1 (en) 2004-11-25
US20060236882A1 (en) 2006-10-26
EP1622771A1 (en) 2006-02-08
JP2006528567A (en) 2006-12-21

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