EP2091737B1 - Cleaning method and cleaning device for a cylinder surface of a printing machine - Google Patents

Cleaning method and cleaning device for a cylinder surface of a printing machine Download PDF

Info

Publication number
EP2091737B1
EP2091737B1 EP07819868A EP07819868A EP2091737B1 EP 2091737 B1 EP2091737 B1 EP 2091737B1 EP 07819868 A EP07819868 A EP 07819868A EP 07819868 A EP07819868 A EP 07819868A EP 2091737 B1 EP2091737 B1 EP 2091737B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
cleaning fluid
converter
gas
spray bar
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.)
Not-in-force
Application number
EP07819868A
Other languages
German (de)
French (fr)
Other versions
EP2091737A1 (en
Inventor
Klaus Strobl
Dietger Hesekamp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technotrans SE
Original Assignee
Technotrans SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Technotrans SE filed Critical Technotrans SE
Publication of EP2091737A1 publication Critical patent/EP2091737A1/en
Application granted granted Critical
Publication of EP2091737B1 publication Critical patent/EP2091737B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/06—Preparing for use and conserving printing surfaces by use of detergents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
    • B05B7/262—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device
    • 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
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0884—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being aligned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • 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 present invention relates to a cleaning device for cleaning a cylinder surface of a printing machine according to the preamble of claim 1, and to a corresponding cleaning method according to the preamble of claim 9.
  • Such a cleaning device and a corresponding cleaning method are, for example DE 10 2004 011 860 A1 known.
  • the cleaning fluid is, by the spray bar, which extends along the cylinder to be cleaned, sprayed directly onto the surface or on a cleaning cloth, which is then pressed against the surface.
  • the supply device deposits a volume of the cleaning fluid, which contains a detergent, such as a solvent or water, in an intermediate store and presses it, for example by means of compressed air, to the spray bar.
  • the DE 10 2004 011 860 A1 proposes for this purpose a transducer in the form of a nozzle or a mixer, which dissolves the watersfiuid into individual drops or thoroughly mixed. The cleaning fluid can then be blown evenly under pressure from the spray nozzles of the spray bar.
  • a nozzle for producing a homogeneous liquid-gas mixture is for example also made US 4,349,156 A known.
  • a compressed air flow is supplied to the fluid.
  • the publication DE 10 2004 011 861 A1 also proposes a venting of the spray bar, which is intended to cause a flow of excess air from the spray bar.
  • the publication EP 0 607 751 A further discloses a washing device for printing rollers for use in printing machines with a spray tube.
  • the tube comprises a plurality of spray nozzles for spraying the washing fluid onto the pressure rollers.
  • the washing fluid is supplied to the spray nozzles by means of a supply line.
  • the spray nozzles compressed air is supplied by means of a Heilrille.
  • the supply line and the air groove communicate with a vortex chamber. The washing fluid and the compressed air are mixed together in the vortex chamber before being discharged through the spray nozzles.
  • the publication US 2005/0189661 A1 discloses a spraying device for a printing press.
  • a liquid enters the spray device via a supply line. If a valve element is opened, the liquid can penetrate into an inner passage via an inlet opening, wherein the liquid passes through a gas inlet opening and air is sucked in by means of the Venturi effect.
  • the inner passage then expands, this section being used as a swirl chamber in which the liquid and air are mixed before the air-liquid mixture exits the spray device via a spray nozzle.
  • WO 95/01876 A1 an apparatus for cleaning a printing cylinder of a printing press.
  • the apparatus includes a boom on which a cleaning head is conveyed by means of a slider relative to the boom.
  • the cleaning head is provided with pipes connected thereto.
  • the pipes are used for the transport of compressed air from an external pressure source.
  • liquid is fed into the cleaning head via an antechamber in which a mixing of the compressed air and the liquid takes place.
  • the gas-liquid mixture is delivered to the surface of the pressure cylinder.
  • the publication DE 10 2004 011 860 A1 discloses a cleaning device for a cylinder or a roll of a printing press. Extending over the width of the cylinder or the roller, a cleaning fluid supplying spray tube, which is connected by at least one supply line with a supply system, which doses the cleaning fluid and fed by means of compressed air to the spray tube.
  • the spray tube is preceded by a cleaning fluid in a homogeneous liquid-air mixture converting converter.
  • GB 2 231 286 A a flat jet nozzle for atomizing a liquid.
  • the nozzle comprises a mixing head comprising a mixing chamber with two mutually perpendicular units for each of a gaseous and a liquid medium.
  • a tubular connector is secured coaxially with the mixing chamber.
  • a mouthpiece with a spray nozzle outlet is mounted at the lower end of the connector.
  • Object of the present invention is therefore to provide a cleaning device and a corresponding method of the type mentioned above, which improve the homogenization of the cleaning fluid and thus contribute to an improved spray pattern.
  • the inventive additional enrichment of the cleaning fluid with a gas such as air causes an increase in the gas content in the fluid, so that the homogenization is facilitated and a more uniform distribution of the same through the spray bar is possible. This makes it possible to manage with less washing liquid, since it is no longer necessary due to the uniform spreadability to adjust an overdose in order to prevent the above-described undersupply of surface areas with cleaning fluid.
  • the converter comprises a gas connection, through which the gas is fed into the cleaning fluid flowing through the converter.
  • This may be, for example, a simple ventilation opening.
  • the transducer is designed as an injector.
  • an injector the construction of which is known per se, comprises a continuous channel through which the cleaning fluid flows.
  • a suction port for air or other gas is provided at a bottleneck of this fluid channel. Due to the negative pressure created by the flow of the fluid at the bottleneck, the gas is sucked in and mixes with the cleaning fluid.
  • the transducer is designed as ejector.
  • gas is forced through a continuous gas channel in the ejector, which sucks through a suction channel, which opens into a bottleneck of the gas channel, the cleaning fluid, so that downstream of the junction with the gas enriched cleaning fluid flows and can be further promoted to the spray bar.
  • the transducer comprises a nozzle, preferably an atomizer nozzle, for atomizing the cleaning fluid.
  • a nozzle preferably an atomizer nozzle, for atomizing the cleaning fluid.
  • This may be a nozzle that dissolves the gas-enriched cleaning fluid into individual droplets.
  • the supply device may preferably be provided to feed the cleaning fluid into one end or into both ends of the spray bar.
  • the supply device serves to feed the cleaning fluid approximately in the longitudinal center of the spray bar.
  • the gas for enriching the cleaning fluid is air.
  • Fig. 1 shows a generally designated by the reference numeral 10 cleaning device for a cylinder surface, not shown, of a printing press.
  • the cleaning device 10 comprises a spray bar 12, which extends in the axial direction over the cylinder surface to be cleaned and has a number of spray nozzles 14. Through the spray nozzles 14, a cleaning fluid is sprayed onto the cylinder surface. Optionally, it is possible to spray the fluid on a cleaning cloth, which is then passed over the surface to be cleaned.
  • the cleaning fluid can be a detergent like about a solvent or water and a gas such as air, as will be explained in more detail below.
  • a supply means 16 For supplying the cleaning fluid to the spray bar 12 is a supply means 16. This comprises a supply line 18, a converter 20 and a downstream of the converter 20 arranged supply line 22 through which the cleaning fluid from the supply line 18 is fed to the spray bar 12 after it the converter 20th happened.
  • the feeding of the cleaning fluid takes place at an axial end of the spray bar 12, which in Fig. 1 is arranged on the left.
  • the conveying of the cleaning fluid in the direction of the spray bar 12 is done by acting on the supply line 18 with compressed air (in Fig. 1 indicated by an arrow on the left).
  • the compressed air source is not shown in the figures for the sake of simplicity, as well as other lines for filling the supply line 18 with a supply of cleaning fluid from appropriate sources, such as tanks for solvents, water, etc.
  • Corresponding devices of the cleaning device 10 may be configured similarly as in the document already mentioned in the introduction to the description DE 10 2004 011 860 A1 described.
  • the converter 20 opens laterally an air supply line 24 through which air is sucked into the transducer 20 and is mixed within the transducer 20 in the cleaning fluid, so that the funded in the direction of the spray bar 12 cleaning fluid is enriched with air.
  • a gas other than air In the context of the present invention it is also possible to use a gas other than air.
  • the converter 20 is designed as an injector.
  • a cleaning fluid channel 26 extends axially through the transducer 20, through which the cleaning fluid flows from the supply line 18 in the direction of the supply line 22 or the spray bar 12 (in FIG Fig. 2 left to right).
  • the cleaning fluid channel 26 comprises a constriction 28.
  • the channel 26 Downstream of the constriction 28, the channel 26 is expanded radially to an approximately cylindrical chamber 30. In this chamber 30 opens from the radial direction of the air port 32 of the air connection line 24. If the cleaning fluid flows through the channel 26, is at the bottleneck 28 due to the Increasing the flow rate generates a negative pressure in the chamber 30, through which air is sucked through the air port 32 from the air supply line 24 into the channel 26.
  • the cleaning fluid conveyed through the channel 26 is thus additionally admixed with air, that is to say the cleaning fluid, which usually already contains a certain proportion of air due to the compressed air delivery, is additionally enriched with air in order to facilitate the homogenization.
  • This air enrichment can of course also be carried out on a cleaning fluid that contains no air in the stored state in the supply line 18, but consists exclusively of a washing liquid, as may be the case for example in a pure pump delivery.
  • the cleaning fluid channel 26 Downstream of the chamber 30, the cleaning fluid channel 26 is formed as a nozzle 33, which serves to atomize the air-enriched cleaning fluid into fine droplets and to convert them into a homogeneous mixture of liquid and air.
  • This homogenized cleaning fluid is then passed through the in Fig. 2 Feed line 22, not shown, is fed to the spray bar 12 and ejected through the spray nozzles 14.
  • a spray nozzle 33 may also be provided a mixer which ensures a uniform mixing of the fluid.
  • transducer 20 and an ejector can be used.
  • compressed air is conveyed through an air channel which is arranged axially within the converter 20 and is arranged like the cleaning fluid channel 26. Downstream of a constriction of this compressed air channel opens laterally a cleaning fluid suction line into the compressed air channel, so that due to the negative pressure downstream of the bottleneck cleaning fluid is sucked in and the desired cleaning fluid mixture is formed, which is sufficiently offset with air.
  • the 3 and 4 relate to different embodiments and arrangements of the supply line to the spray bar 12.
  • the supply line 34 branches into two supply branch lines 36, 38, of which in each case a branch line 36, 38 opens into an axial end of the spray bar 12.
  • the spray bar 12 is So fed from its two ends with homogenized cleaning fluid.
  • a feed line 40 which does not open at one end, but at a location near the longitudinal center in the spray bar 12.
  • the converter 20 can also be actively ventilated via the air connection line 24, ie via a corresponding air or gas feed device at the end of the air connection line 24, which in the Fig. 1 . 3 and 4 is shown as open. Furthermore, it is possible to provide a plurality of lateral gas connections on the converter 20 instead of a single air connection 32.

Landscapes

  • Nozzles (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Manufacturing Of Printed Wiring (AREA)

Abstract

The method involves transferring cleaning fluid by a transducer (20) into a homogeneous liquid-gas mixture. The homogeneous liquid-gas mixture is sprayed with help of spraying bar (12) on the cylinder surface or on cleaning cloth for cleaning the cylinder surface. The cleaning fluid is additionally enriched with a gas in the transducer. An independent claim is also included for a cleaning device for a cylinder surface of a printing machine for execution of the method.

Description

Die vorliegende Erfindung betrifft eine Reinigungsvorrichtung zur Reinigung einer Zylinderoberfläche einer Druckmaschine gemäß dem Oberbegriff des Anspruchs 1, sowie ein entsprechendes Reinigungsverfahren gemäß dem Oberbegriff des Anspruchs 9.The present invention relates to a cleaning device for cleaning a cylinder surface of a printing machine according to the preamble of claim 1, and to a corresponding cleaning method according to the preamble of claim 9.

Eine derartige Reinigungsvorrichtung sowie ein entsprechendes Reinigungsverfahren sind beispielsweise aus DE 10 2004 011 860 A1 bekannt. Das Reinigungsfluid wird, durch den Sprühbalken, der sich entlang des zu reinigenden Zylinders erstreckt, unmittelbar auf dessen Oberfläche oder auf ein Reinigungstuch aufgesprüht, welches anschließend an die Oberfläche angedrückt wird. Hierzu legt die Zufuhreinrichtung ein Volumen des Reinigungsfluids, das ein Waschmittel wie etwa ein Lösungsmittel oder Wasser enthält, in einem Zwischenspeicher vor und drückt es beispielsweise mittels Druckluft zum Sprühbalken.Such a cleaning device and a corresponding cleaning method are, for example DE 10 2004 011 860 A1 known. The cleaning fluid is, by the spray bar, which extends along the cylinder to be cleaned, sprayed directly onto the surface or on a cleaning cloth, which is then pressed against the surface. For this purpose, the supply device deposits a volume of the cleaning fluid, which contains a detergent, such as a solvent or water, in an intermediate store and presses it, for example by means of compressed air, to the spray bar.

Bei diesem Ausblasvorgang vermischt sich die treibende Luft mit der Flüssigkeit im Vorrat. Zur Erzeugung eines gleichmässigen Sprühbildes ist es erforderlich, dasIn this blow-out process, the driving air mixes with the liquid in the supply. To produce a uniform spray pattern, it is necessary that

Reinigungsfluid vor der Einleitung in den Sprühbalken zu homogenisieren, d.h., das Fluid in ein homogenes Gemisch aus Flüssigkeit und Gas zu überführen. Die DE 10 2004 011 860 A1 schlägt hierzu einen Wandler in Form einer Düse oder eines Mischers vor, der das Reinigungsfiuid in einzelne Tropfen auflöst oder gründlich durchmischt. Das Reinigungsfluid kann dann gleichmäßig unter Druck aus den Sprühdüsen des Sprühbalkens ausgeblasen werden.To homogenize cleaning fluid prior to introduction into the spray bar, ie, to convert the fluid into a homogeneous mixture of liquid and gas. The DE 10 2004 011 860 A1 proposes for this purpose a transducer in the form of a nozzle or a mixer, which dissolves the Reinigungsfiuid into individual drops or thoroughly mixed. The cleaning fluid can then be blown evenly under pressure from the spray nozzles of the spray bar.

Eine Düse zur Erzeugung eines homogenen Flüssigkeits-Gas-Gemisches ist beispielsweise auch aus US 4,349,156 A bekannt. Hierbei wird dem Fluid ein Druckluftstrom zugeführt.A nozzle for producing a homogeneous liquid-gas mixture is for example also made US 4,349,156 A known. In this case, a compressed air flow is supplied to the fluid.

Die Druckschrift DE 10 2004 011 861 A1 schlägt darüber hinaus eine Entlüftung des Sprühbalkens vor, die ein Abfließen überschüssiger Luft aus dem Sprühbalken bewirken soll.The publication DE 10 2004 011 861 A1 also proposes a venting of the spray bar, which is intended to cause a flow of excess air from the spray bar.

Die in den beiden vorstehend genannten Druckschriften DE 10 2004 011 860 A1 und DE 10 2004 011 861 A1 beschriebenen Wandler sorgen jedoch nicht immer für eine zufriedenstellende Homogenisierung des Reinigungsfluids. Dies liegt unter anderem an den Strömungsverhältnissen im Zuleitungssystem der Zufuhreinrichtung. An Stellen, an denen das Reinigungsfluid umgelenkt wird, treten ungünstige Strömungsformen wie etwa Schwallströmungen auf, die eine Homogenisierung des Fluids erschweren. Dies kann zur Folge haben, dass die Zylinderoberfläche nicht gleichmäßig benetzt wird. Um einer Unterversorgung kritischer Oberflächenbereiche vorzubeugen, muss eine Überdosierung des Reinigungsfluids eingestellt werden, die zu einem unerwünscht hohen Verbrauch an Waschflüssigkeit führt.The in the two aforementioned publications DE 10 2004 011 860 A1 and DE 10 2004 011 861 A1 However, described converters do not always provide for a satisfactory homogenization of the cleaning fluid. This is partly due to the flow conditions in the supply system of the supply device. In places where the cleaning fluid is deflected, unfavorable flow forms such as surge currents occur, which make it difficult to homogenize the fluid. This can mean that the cylinder surface is not evenly wetted. In order to prevent undersupply of critical surface areas, an overdose of the cleaning fluid must be set, which leads to an undesirably high consumption of washing liquid.

Die Druckschrift EP 0 607 751 A offenbart ferner eine Waschvorrichtung für Druckwalzen zur Verwendung in Druckmaschinen mit einem Sprührohr. Das Rohr umfasst eine Vielzahl von Sprühdüsen zum Aufsprühen des Waschfluids auf die Druckwalzen. Das Waschfluid wird den Sprühdüsen mittels einer Zufuhrleitung zugeführt. Ferner wird den Sprühdüsen Druckluft mittels einer Luftrille zugeführt. Die Zufuhrleitung und die Luftrille kommunizieren mit einer Wirbelkammer. Das Waschfluid und die Druckluft werden in der Wirbelkammer miteinander vermischt bevor sie durch die Sprühdüsen abgegeben werden.The publication EP 0 607 751 A further discloses a washing device for printing rollers for use in printing machines with a spray tube. The tube comprises a plurality of spray nozzles for spraying the washing fluid onto the pressure rollers. The washing fluid is supplied to the spray nozzles by means of a supply line. Further, the spray nozzles compressed air is supplied by means of a Luftrille. The supply line and the air groove communicate with a vortex chamber. The washing fluid and the compressed air are mixed together in the vortex chamber before being discharged through the spray nozzles.

Die Druckschrift US 2005/0189661 A1 offenbart eine Sprühvorrichtung für eine Druckmaschine. Eine Flüssigkeit tritt in die Sprühvorrichtung über eine Zufuhrleitung ein. Ist ein Ventilelement geöffnet, kann die Flüssigkeit über eine Einlassöffnung in eine innere Passage vordringen, wobei die Flüssigkeit eine Gaseinlassöffnung passiert und mit Hilfe des Venturi-Effekts Luft angesaugt wird. Die innere Passage weitet sich anschließend auf, wobei dieser Abschnitt als Wirbelkammer genutzt wird, in der die Flüssigkeit und die Luft vermischt werden bevor das Luft-Flüssigkeits-Gemisch aus der Sprühvorrichtung über eine Sprühdüse austritt.The publication US 2005/0189661 A1 discloses a spraying device for a printing press. A liquid enters the spray device via a supply line. If a valve element is opened, the liquid can penetrate into an inner passage via an inlet opening, wherein the liquid passes through a gas inlet opening and air is sucked in by means of the Venturi effect. The inner passage then expands, this section being used as a swirl chamber in which the liquid and air are mixed before the air-liquid mixture exits the spray device via a spray nozzle.

Ferner offenbart die Druckschrift WO 95/01876 A1 eine Vorrichtung zum Reinigen eines Druckzylinders einer Druckmaschine. Die Vorrichtung umfasst einen Ausleger, an dem ein Reinigungskopf mittels eines Gleitstücks relativ zu dem Ausleger befördert wird. Der Reinigungskopf ist mit Rohren versehen, die mit diesem verbunden sind. Die Rohre werden zur Beförderung von Druckluft von einer externen druckquelle genutzt. Ferner wird Flüssigkeit über eine Vorkammer, in der ein Vermischen der Druckluft und der Flüssigkeit stattfindet, in den Reinigungskopf gespeist. Über Sprühdüsen wird das Gas-Flüssigkeits-Gemisch an die Oberfläche des Druckzylinders abgegeben.Further, the document discloses WO 95/01876 A1 an apparatus for cleaning a printing cylinder of a printing press. The apparatus includes a boom on which a cleaning head is conveyed by means of a slider relative to the boom. The cleaning head is provided with pipes connected thereto. The pipes are used for the transport of compressed air from an external pressure source. Furthermore, liquid is fed into the cleaning head via an antechamber in which a mixing of the compressed air and the liquid takes place. About spray nozzles, the gas-liquid mixture is delivered to the surface of the pressure cylinder.

Die Druckschrift DE 10 2004 011 860 A1 offenbart eine Reinigungsvorrichtung für einen Zylinder oder eine Walze einer Druckmaschine. Über die Breite des Zylinders oder der Walze erstreckt sich ein Reinigungsfluid zuführendes Sprührohr, das durch mindestens eine Zuleitung mit einem Versorgungssystem verbunden ist, welches das Reinigungsfluid dosiert und mittels Druckluft dem Sprührohr zuführt. Dem Sprührohr ist ein das Reinigungsfluid in ein homogenes Flüssigkeits-Luft-Gemisch überführender Wandler vorgeordnet.The publication DE 10 2004 011 860 A1 discloses a cleaning device for a cylinder or a roll of a printing press. Extending over the width of the cylinder or the roller, a cleaning fluid supplying spray tube, which is connected by at least one supply line with a supply system, which doses the cleaning fluid and fed by means of compressed air to the spray tube. The spray tube is preceded by a cleaning fluid in a homogeneous liquid-air mixture converting converter.

Ferner offenbart die Druckschrift GB 2 231 286 A eine Flachstrahl-Düse zur Zerstäubung einer Flüssigkeit. Die Düse umfasst einen Mischkopf aufweisend eine Mischkammer mit zwei senkrecht zueinander angeordneten Einheiten für jeweils ein gasförmiges und ein flüssiges Medium. Am Ende des Mischkopfes beabstandet von der ersten Einheit ist koaxial mit der Mischkammer ein röhrenförmiges Verbindungsstück befestigt. Am unteren Ende des Verbindungsstücks ist ein Mundstück mit einem Sprühdüsen-Auslass montiert.Further, the document discloses GB 2 231 286 A a flat jet nozzle for atomizing a liquid. The nozzle comprises a mixing head comprising a mixing chamber with two mutually perpendicular units for each of a gaseous and a liquid medium. At the end of the mixing head spaced from the first unit, a tubular connector is secured coaxially with the mixing chamber. At the lower end of the connector a mouthpiece with a spray nozzle outlet is mounted.

Aufgabe der vorliegenden Erfindung ist es daher, eine Reinigungsvorrichtung sowie ein entsprechendes Verfahren der eingangs genannten Art zu schaffen, die die Homogenisierung des Reinigungsfluids verbessern und somit zu einem verbesserten Sprühbild beitragen.Object of the present invention is therefore to provide a cleaning device and a corresponding method of the type mentioned above, which improve the homogenization of the cleaning fluid and thus contribute to an improved spray pattern.

Diese Aufgabe wird erfindungsgemäß durch eine Reinigungsvorrichtung gemäß Anspruch 1 sowie durch ein entsprechendes Reinigungsverfahren gemäß Anspruch 9 gelöst.This object is achieved by a cleaning device according to claim 1 and by a corresponding cleaning method according to claim 9.

Die erfindungsgemäße zusätzliche Anreicherung des Reinigungsfluids mit einem Gas wie beispielsweise Luft bewirkt eine Erhöhung des Gasanteils im Fluid, so dass die Homogenisierung erleichtert wird und eine gleichmäßigere Verteilung desselben durch den Sprühbalken möglich wird. Hierdurch ist es möglich, mit weniger Waschflüssigkeit auszukommen, da es aufgrund der gleichmäßigen Verteilbarkeit nicht mehr notwendig ist, eine Überdosierung einzustellen, um der oben beschriebenen Unterversorgung von Oberflächenbereichen mit Reinigungsfluid vorzubeugen.The inventive additional enrichment of the cleaning fluid with a gas such as air causes an increase in the gas content in the fluid, so that the homogenization is facilitated and a more uniform distribution of the same through the spray bar is possible. This makes it possible to manage with less washing liquid, since it is no longer necessary due to the uniform spreadability to adjust an overdose in order to prevent the above-described undersupply of surface areas with cleaning fluid.

In einer bevorzugten Ausführungsform der vorliegenden Erfindung umfasst der Wandler einen Gasanschluss, durch welchen das Gas in das den Wandler durchströmende Reinigunsfluid eingespeist wird. Hierbei kann es sich beispielsweise um eine einfache Belüftungsöffnung handeln.In a preferred embodiment of the present invention, the converter comprises a gas connection, through which the gas is fed into the cleaning fluid flowing through the converter. This may be, for example, a simple ventilation opening.

In einer bevorzugten Ausführungsform ist der Wandler als Injektor ausgebildet. Ein solcher Injektor, dessen Bauweise an sich bekannt ist, umfasst einen durchgehenden Kanal, durch welchen das Reinigungsfluid strömt. An einer Engstelle dieses Fluidkanals ist ein Sauganschluss für Luft oder ein anderes Gas vorgesehen. Durch den Unterdruck, der durch die Strömung des Fluids an der Engstelle entsteht, wird das Gas angesaugt und vermischt sich mit dem Reinigungsfluid.In a preferred embodiment, the transducer is designed as an injector. Such an injector, the construction of which is known per se, comprises a continuous channel through which the cleaning fluid flows. At a bottleneck of this fluid channel, a suction port for air or other gas is provided. Due to the negative pressure created by the flow of the fluid at the bottleneck, the gas is sucked in and mixes with the cleaning fluid.

In einer weiteren bevorzugten Ausführungsform ist der Wandler als Ejektor ausgebildet. Hierbei wird durch einen durchgehenden Gaskanal im Ejektor Gas gedrückt, das durch einen Saugkanal, der in eine Engstelle des Gaskanals mündet, das Reinigungsfluid ansaugt, so dass stromabwärts der Einmündung mit dem Gas angereichertes Reinigungsfluid strömt und weiter zum Sprühbalken gefördert werden kann.In a further preferred embodiment, the transducer is designed as ejector. In this case, gas is forced through a continuous gas channel in the ejector, which sucks through a suction channel, which opens into a bottleneck of the gas channel, the cleaning fluid, so that downstream of the junction with the gas enriched cleaning fluid flows and can be further promoted to the spray bar.

Vorzugsweise umfasst der Wandler eine Düse, vorzugsweise eine Zerstäuberdüse, zum Zerstäuben des Reinigungsfluids. Hierbei kann es sich um eine Düse handeln, die das mit Gas angereicherte Reinigungsfluid in einzelne Tröpfchen auflöst.Preferably, the transducer comprises a nozzle, preferably an atomizer nozzle, for atomizing the cleaning fluid. This may be a nozzle that dissolves the gas-enriched cleaning fluid into individual droplets.

Die Zufuhreinrichtung kann vorzugsweise dazu vorgesehen sein, das Reinigungsfluid in ein Ende oder in beide Enden des Sprühbalkens einzuspeisen.The supply device may preferably be provided to feed the cleaning fluid into one end or into both ends of the spray bar.

Gemäß einer weiteren bevorzugten Ausführungsform dient die Zufuhreinrichtung zur Einspeisung des Reinigungsfluids etwa in die Längsmitte des Sprühbalkens.According to a further preferred embodiment, the supply device serves to feed the cleaning fluid approximately in the longitudinal center of the spray bar.

Vorzugsweise handelt es sich bei dem Gas zur Anreicherung des Reinigungsfluids um Luft.Preferably, the gas for enriching the cleaning fluid is air.

Im folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der beigefügten Zeichnungen näher erläutert.

  • Fig. 1 ist eine schematische Darstellung einer ersten Ausführungsform der erfindungsgemäßen Reinigungsvorrichtung:
  • Fig. 2 ist ein Längsschnitt durch den Wandler der Reinigungsvorrichtung aus Fig. 1; und
  • Fig. 3 und 4 sind schematische Darstellungen weiterer Ausführungsformen der erfindungsgemäßen Reinigungsvorrichtung.
In the following a preferred embodiment of the invention will be explained in more detail with reference to the accompanying drawings.
  • Fig. 1 is a schematic representation of a first embodiment of the cleaning device according to the invention:
  • Fig. 2 is a longitudinal section through the transducer of the cleaning device Fig. 1 ; and
  • 3 and 4 are schematic representations of further embodiments of the cleaning device according to the invention.

Fig. 1 zeigt eine insgesamt mit der Bezugsziffer 10 bezeichnete Reinigungsvorrichtung für eine nicht dargestellte Zylinderoberfläche einer Druckmaschine. Die Reinigungsvorrichtung 10 umfasst einen Sprühbalken 12, der sich in axialer Richtung über die zu reinigende Zylinderoberfläche erstreckt und eine Anzahl von Sprühdüsen 14 aufweist. Durch die Sprühdüsen 14 wird ein Reinigungsfluid auf die Zylinderoberfläche aufgesprüht. Wahlweise ist es möglich, das Fluid auf ein Reinigungstuch aufzusprühen, welches anschließend über die zu reinigende Oberfläche geführt wird. Das Reinigungsfluid kann ein Waschmittel wie etwa ein Lösungsmittel oder Wasser sowie ein Gas wie beispielsweise Luft enthalten, wie im Folgenden noch näher ausgeführt werden soll. Fig. 1 shows a generally designated by the reference numeral 10 cleaning device for a cylinder surface, not shown, of a printing press. The cleaning device 10 comprises a spray bar 12, which extends in the axial direction over the cylinder surface to be cleaned and has a number of spray nozzles 14. Through the spray nozzles 14, a cleaning fluid is sprayed onto the cylinder surface. Optionally, it is possible to spray the fluid on a cleaning cloth, which is then passed over the surface to be cleaned. The cleaning fluid can be a detergent like about a solvent or water and a gas such as air, as will be explained in more detail below.

Zur Zufuhr des Reinigungsfluids zum Sprühbalken 12 dient eine Zufuhreinrichtung 16. Diese umfasst eine Vorratsleitung 18, einen Wandler 20 und eine stromabwärts des Wandlers 20 angeordnete Zuleitung 22, durch welche das Reinigungsfluid aus der Vorratsleitung 18 dem Sprühbalken 12 zugeführt wird, nachdem es den Wandler 20 passiert hat. Die Einspeisung des Reinigungsfluids erfolgt an einem axialen Ende des Sprühbalkens 12, das in Fig. 1 links angeordnet ist. Das Fördern des Reinigungsfluids in Richtung des Sprühbalkens 12 geschieht durch eine Beaufschlagung der Vorratsleitung 18 mit Druckluft (in Fig. 1 links durch einen Pfeil angedeutet). Die Druckluftquelle ist in den Figuren der Einfachheit halber nicht dargestellt, ebenso wie weitere Leitungen zur Befüllung der Vorratsleitung 18 mit einem Vorrat des Reinigungsfluids von entsprechenden Quellen aus, wie etwa aus Tanks für Lösungsmittel, Wasser usw. Entsprechende Einrichtungen der Reinigungsvorrichtung 10 können ähnlich ausgebildet sein wie in der bereits in der Beschreibungseinleitung genannten Druckschrift DE 10 2004 011 860 A1 beschrieben.For supplying the cleaning fluid to the spray bar 12 is a supply means 16. This comprises a supply line 18, a converter 20 and a downstream of the converter 20 arranged supply line 22 through which the cleaning fluid from the supply line 18 is fed to the spray bar 12 after it the converter 20th happened. The feeding of the cleaning fluid takes place at an axial end of the spray bar 12, which in Fig. 1 is arranged on the left. The conveying of the cleaning fluid in the direction of the spray bar 12 is done by acting on the supply line 18 with compressed air (in Fig. 1 indicated by an arrow on the left). The compressed air source is not shown in the figures for the sake of simplicity, as well as other lines for filling the supply line 18 with a supply of cleaning fluid from appropriate sources, such as tanks for solvents, water, etc. Corresponding devices of the cleaning device 10 may be configured similarly as in the document already mentioned in the introduction to the description DE 10 2004 011 860 A1 described.

In den Wandler 20 mündet seitlich eine Luftanschlussleitung 24, durch welche Luft in den Wandler 20 eingesaugt wird und innerhalb des Wandlers 20 in das Reinigungsfluid eingemischt wird, so dass das in Richtung des Sprühbalkens 12 geförderte Reinigungsfluid mit Luft angereichert wird. Im Rahmen der vorliegenden Erfindung ist es auch möglich, ein anderes Gas zu verwenden als Luft. Wie in der Schnittansicht in Fig. 2 zu sehen ist, ist der Wandler 20 als Injektor ausgebildet. Hierzu verläuft axial durch den Wandler 20 hindurch ein Reinigungsfluid-Kanal 26, durch welchen das Reinigungsfluid von der Vorratsleitung 18 in Richtung der Zuleitung 22 bzw. des Sprühbalkens 12 strömt (in Fig. 2 von links nach rechts). Der Reinigungsfluid-Kanal 26 umfasst eine Engstelle 28. Stromabwärts der Engstelle 28 ist der Kanal 26 radial zu einer etwa zylinderförmigen Kammer 30 aufgeweitet. In diese Kammer 30 mündet aus radialer Richtung der Luftanschluss 32 der Luftanschlussleitung 24. Strömt das Reinigungsfluid durch den Kanal 26, wird an der Engstelle 28 aufgrund der Erhöhung der Strömungsgeschwindigkeit ein Unterdruck in der Kammer 30 erzeugt, durch welchen Luft durch den Luftanschluss 32 aus der Luftanschlussleitung 24 in den Kanal 26 eingesaugt wird. Innerhalb der Kammer 30 wird dem durch den Kanal 26 geförderten Reinigungsfluid somit zusätzlich Luft beigemischt, das heißt, das Reinigungsfluid, das aufgrund der Druckluftförderung üblicherweise bereits einen gewissen Luftanteil enthält, wird zusätzlich mit Luft angereichert, um die Homogenisierung zu erleichtern. Diese Luftanreicherung kann selbstverständlich auch an einem Reinigungsfluid vorgenommen werden, das im bevorrateten Zustand in der Vorratsleitung 18 keine Luft enthält, sondern ausschließlich aus einer Waschflüssigkeit besteht, wie es beispielsweise bei einer reinen Pumpenförderung der Fall sein kann.In the converter 20 opens laterally an air supply line 24 through which air is sucked into the transducer 20 and is mixed within the transducer 20 in the cleaning fluid, so that the funded in the direction of the spray bar 12 cleaning fluid is enriched with air. In the context of the present invention it is also possible to use a gas other than air. As in the sectional view in Fig. 2 can be seen, the converter 20 is designed as an injector. For this purpose, a cleaning fluid channel 26 extends axially through the transducer 20, through which the cleaning fluid flows from the supply line 18 in the direction of the supply line 22 or the spray bar 12 (in FIG Fig. 2 left to right). The cleaning fluid channel 26 comprises a constriction 28. Downstream of the constriction 28, the channel 26 is expanded radially to an approximately cylindrical chamber 30. In this chamber 30 opens from the radial direction of the air port 32 of the air connection line 24. If the cleaning fluid flows through the channel 26, is at the bottleneck 28 due to the Increasing the flow rate generates a negative pressure in the chamber 30, through which air is sucked through the air port 32 from the air supply line 24 into the channel 26. Within the chamber 30, the cleaning fluid conveyed through the channel 26 is thus additionally admixed with air, that is to say the cleaning fluid, which usually already contains a certain proportion of air due to the compressed air delivery, is additionally enriched with air in order to facilitate the homogenization. This air enrichment can of course also be carried out on a cleaning fluid that contains no air in the stored state in the supply line 18, but consists exclusively of a washing liquid, as may be the case for example in a pure pump delivery.

Stromabwärts der Kammer 30 ist der Reinigungsfluid-Kanal 26 als Düse bzw. Zerstäuberdüse 33 ausgeformt, die dazu dient, das mit Luft angereicherte Reinigungsfluid in feine Tröpfchen zu zerstäuben und in ein homogenes Gemisch aus Flüssigkeit und Luft zu überführen. Dieses homogenisierte Reinigungsfluids wird anschließend durch die in Fig. 2 nicht dargestellte Zuleitung 22 dem Sprühbalken 12 zugeführt und durch die Sprühdüsen 14 ausgestoßen. Statt einer Zerstäuberdüse 33 kann auch ein Mischer vorgesehen sein, der für eine gleichförmige Durchmischung des Fluids sorgt.Downstream of the chamber 30, the cleaning fluid channel 26 is formed as a nozzle 33, which serves to atomize the air-enriched cleaning fluid into fine droplets and to convert them into a homogeneous mixture of liquid and air. This homogenized cleaning fluid is then passed through the in Fig. 2 Feed line 22, not shown, is fed to the spray bar 12 and ejected through the spray nozzles 14. Instead of a spray nozzle 33 may also be provided a mixer which ensures a uniform mixing of the fluid.

Als Wandler 20 kann auch ein Ejektor verwendet werden. Hierbei wird durch einen axial innerhalb des Wandlers 20 angeordneten Druckluftkanal, der wie der Reinigungsfluid-Kanal 26 angeordnet ist, Druckluft gefördert. Stromabwärts einer Engstelle dieses Druckluftkanals mündet seitlich eine Reinigungsfluid-Saugleitung in den Druckluftkanal, so dass aufgrund des Unterdrucks stromabwärts der Engstelle Reinigungsfluid eingesaugt wird und das gewünschte Reinigungsfluid-Gemisch gebildet wird, das in ausreichendem Maße mit Luft versetzt ist.As the transducer 20 and an ejector can be used. In this case, compressed air is conveyed through an air channel which is arranged axially within the converter 20 and is arranged like the cleaning fluid channel 26. Downstream of a constriction of this compressed air channel opens laterally a cleaning fluid suction line into the compressed air channel, so that due to the negative pressure downstream of the bottleneck cleaning fluid is sucked in and the desired cleaning fluid mixture is formed, which is sufficiently offset with air.

Die Fig. 3 und 4 betreffen unterschiedliche Ausführungsformen und Anordnungen der Zuleitung zum Sprühbalken 12. Gemäß Fig. 3 verzweigt sich die Zuleitung 34 in zwei Zuleitungs-Zweigleitungen 36, 38, von denen jeweils eine Zweigleitung 36, 38 in ein axiales Ende des Sprühbalkens 12 einmündet. Der Sprühbalken 12 wird also von seinen beiden Enden her mit homogenisiertem Reinigungsfluid gespeist. Abweichend von dieser Ausführungsform zeigt Fig. 4 eine Zuleitung 40, die nicht an einem Ende, sondern an einer Stelle in der Nähe der Längsmitte in den Sprühbalken 12 mündet.The 3 and 4 relate to different embodiments and arrangements of the supply line to the spray bar 12. According to Fig. 3 the supply line 34 branches into two supply branch lines 36, 38, of which in each case a branch line 36, 38 opens into an axial end of the spray bar 12. The spray bar 12 is So fed from its two ends with homogenized cleaning fluid. Deviating from this embodiment shows Fig. 4 a feed line 40, which does not open at one end, but at a location near the longitudinal center in the spray bar 12.

Abweichend von den zuvor beschriebenen Ausführungsformen kann der Wandler 20 über die Luftanschlussleitung 24 auch aktiv beatmet werden, d.h. über eine entsprechende Luft- bzw. Gas-Einspeiseeinrichtung an dem Ende der Luftanschlussleitung 24, das in den Fig. 1, 3 und 4 als offen dargestellt ist. Ferner ist es möglich, statt eines einzigen Luftanschlusses 32 mehrere seitliche Gasanschlüsse am Wandler 20 vorzusehen.Notwithstanding the embodiments described above, the converter 20 can also be actively ventilated via the air connection line 24, ie via a corresponding air or gas feed device at the end of the air connection line 24, which in the Fig. 1 . 3 and 4 is shown as open. Furthermore, it is possible to provide a plurality of lateral gas connections on the converter 20 instead of a single air connection 32.

Claims (9)

  1. Cleaning device (10) for cleaning a cylinder surface of a printing machine, comprising:
    a spray bar (12) for spraying a cleaning fluid onto the cylinder surface or onto a cleaning cloth for cleaning the same, the spray bar (12) extending axially across a cylinder surface to be cleaned and comprising a number of spray nozzles (14), and
    a supply means (16) for supplying the cleaning fluid to the spray bar (12), the supply means (16) comprising a converter (20) for converting the cleaning fluid into a homogenous liquid-gas mixture by adding a gas to the cleaning fluid,
    characterised in that
    the supply means (16) further comprising a supply line (18) and a feed line (22) disposed downstream of the converter (20), through which the cleaning fluid is supplied to the spray bar (12) from the supply line (18) after having passed through the converter (20).
  2. Cleaning device according to claim 1, characterised in that the converter (20) comprises a gas connection (32) through which the gas is fed into the cleaning fluid passing through the converter (20).
  3. Cleaning device according to claim 2, characterised in that the converter (20) is formed as an injector.
  4. Cleaning device according to claim 2, characterised in that the converter (20) is formed as an ejector.
  5. Cleaning device according to any of the preceding claims, characterised in that the converter (20) comprises a nozzle, preferably a spray nozzle (33) for spraying the cleaning fluid.
  6. Cleaning device according to any of the preceding claims, characterised in that the cleaning fluid can be fed into one or both ends of the spray bar (12) by means of the supply means (16).
  7. Cleaning device according to any of claims 1 to 5, characterised in that the cleaning fluid can be fed to the lengthwise approximate centre of the spray bar (12) by means of the supply means (16).
  8. Cleaning device according to any of the preceding claims, characterised in that the gas is air.
  9. Method for cleaning a cylinder surface of a printing machine, wherein a cleaning fluid is converted into a homogenous liquid-gas mixture by further adding a gas by means of a converter (20) and the liquid-gas mixture is sprayed onto a cylinder surface or onto a cleaning cloth for cleaning the same, by means of a spray bar (12) extending axially across the cylinder surface to be cleaned and comprising a number of spray nozzles (14), and
    characterised in that
    the cleaning fluid is fed to the spray bar (12) via a feed line (22) after having passed through the converter (20) from a supply line (18).
EP07819868A 2006-11-23 2007-11-20 Cleaning method and cleaning device for a cylinder surface of a printing machine Not-in-force EP2091737B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006055278A DE102006055278B3 (en) 2006-11-23 2006-11-23 Method for cleaning cylinder surface of printing machine, involves transferring cleaning fluid by transducer into homogeneous liquid-gas mixture, where cleaning fluid is additionally enriched with gas in transducer
PCT/EP2007/010035 WO2008061705A1 (en) 2006-11-23 2007-11-20 Cleaning method and cleaning device for a cylinder surface of a printing machine

Publications (2)

Publication Number Publication Date
EP2091737A1 EP2091737A1 (en) 2009-08-26
EP2091737B1 true EP2091737B1 (en) 2010-10-13

Family

ID=38859709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07819868A Not-in-force EP2091737B1 (en) 2006-11-23 2007-11-20 Cleaning method and cleaning device for a cylinder surface of a printing machine

Country Status (4)

Country Link
EP (1) EP2091737B1 (en)
AT (1) ATE484390T1 (en)
DE (2) DE102006055278B3 (en)
WO (1) WO2008061705A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013214454A1 (en) * 2013-07-24 2015-01-29 manroland sheetfed GmbH Sheet guiding cylinder with a pneumatic sheet holding device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794901A (en) * 1987-06-16 1989-01-03 Industrial Technology Research Institute Low pressure air assisted fuel injection apparatus for engine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349156A (en) * 1980-08-11 1982-09-14 Spraying Systems Company Efficiency nozzle
DE3915210A1 (en) 1989-05-10 1990-11-22 Lechler Gmbh & Co Kg TWO-MATERIAL FLAT-JET NOZZLE FOR SPRAYING LIQUIDS
DE4230056A1 (en) * 1992-09-08 1994-03-10 Man Nutzfahrzeuge Ag Atomizer device
JPH06198860A (en) 1992-12-28 1994-07-19 Sakurai Graphic Syst:Kk Ink cleaner of printing press
DK83193A (en) 1993-07-09 1995-01-10 Tresu A S Maskinfabriken Method and apparatus for cleaning the surface of a roller
US7117788B2 (en) 2004-02-27 2006-10-10 Goss International Americas, Inc. Spray device
DE102004011860A1 (en) * 2004-03-11 2005-09-29 Koenig & Bauer Ag Broad spray head for printing machine cylinder or roller cleaning system covers entire width of cylinder and has mixer at center point creating homogenous mix of cleaning fluid and air
DE102004011861A1 (en) * 2004-03-11 2005-09-29 Koenig & Bauer Ag Cylinder or roller cleaning system for use in printing machine has broad spray head covering entire width of cylinder and has mixer creating homogenous mix of cleaning fluid and air

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794901A (en) * 1987-06-16 1989-01-03 Industrial Technology Research Institute Low pressure air assisted fuel injection apparatus for engine

Also Published As

Publication number Publication date
DE502007005376D1 (en) 2010-11-25
EP2091737A1 (en) 2009-08-26
ATE484390T1 (en) 2010-10-15
WO2008061705A1 (en) 2008-05-29
DE102006055278B3 (en) 2008-01-31

Similar Documents

Publication Publication Date Title
EP2651577B1 (en) Method and apparatus for applying a lubricant while rolling metallic rolled stock
DE3123743C2 (en)
EP2403698B1 (en) Apparatus for producing plastic parts interspersed with reinforcing fibres
DE3304129A1 (en) METHOD AND MIXER FOR CONTINUOUSLY GLUING FROM WOOD CHIPS, FIBERS OD. DGL. EXISTING MIXTURE
EP3204167B1 (en) Pneumatic atomizing nozzle
EP1097812B1 (en) Device and method for dampening a component in a printing machine
DE202016001113U1 (en) Smoke guiding device for a hookah
EP2392408B1 (en) Device for applying glue and method for cleaning same
EP0312974A2 (en) Method for joining two material webs
DE3137109C2 (en)
EP2091737B1 (en) Cleaning method and cleaning device for a cylinder surface of a printing machine
DE1278105B (en) Spray gun for the production of polyurethane foam
DE102011079982B4 (en) Spray head for reactive plastics
DE3120260C2 (en)
DE102006027768B3 (en) Washing bar for applying washing fluid to cleaning element of washing device of impression cylinder of offset printing press has spray pipe pretensioned against impingement surface by means of adjustable spring force
EP0110941B1 (en) Method for mixing a plastic containing concrete to be sprayed in a mixing tube and mixing tube for implementing such method
DE19937090A1 (en) Method for powdering printed sheets in printers uses mixture of powder and air supplied by air pressure generator whose output is altered infinitely throughout the operation
DE19836018A1 (en) Arrangement for applying powder to printed sheets
EP1273321A2 (en) Device for fire fighting with pressurised air foam
DE3220880C2 (en) Method for mixing dry concrete mix and water during dry concrete spraying and mixing tube for dry concrete spraying
EP1161293A2 (en) Cleaning device
DE102004011861A1 (en) Cylinder or roller cleaning system for use in printing machine has broad spray head covering entire width of cylinder and has mixer creating homogenous mix of cleaning fluid and air
EP1353757B1 (en) Device for coating an elongated workpiece
EP1666254B1 (en) Device for the supply of washing agent to the surface of roll in a printing machine
EP1642717B1 (en) Device for cleaning surfaces of cylinders in a printing machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090610

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20091113

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502007005376

Country of ref document: DE

Date of ref document: 20101125

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20101013

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101129

Year of fee payment: 4

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20101013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: TECHNOTRANS A.G.

Effective date: 20101130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110214

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110213

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110113

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110114

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110124

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101130

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

26N No opposition filed

Effective date: 20110714

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007005376

Country of ref document: DE

Effective date: 20110714

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20111125

Year of fee payment: 5

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007005376

Country of ref document: DE

Effective date: 20120601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110414

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101013

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20121120

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121120

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121130

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 484390

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121130