EP0682728B1 - Metering system for devices for coating materials webs, especially paper or cardboard webs - Google Patents

Metering system for devices for coating materials webs, especially paper or cardboard webs Download PDF

Info

Publication number
EP0682728B1
EP0682728B1 EP95903275A EP95903275A EP0682728B1 EP 0682728 B1 EP0682728 B1 EP 0682728B1 EP 95903275 A EP95903275 A EP 95903275A EP 95903275 A EP95903275 A EP 95903275A EP 0682728 B1 EP0682728 B1 EP 0682728B1
Authority
EP
European Patent Office
Prior art keywords
hose
roller
doctor blade
webs
doctor
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.)
Revoked
Application number
EP95903275A
Other languages
German (de)
French (fr)
Other versions
EP0682728A1 (en
Inventor
Reinhard Knop
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.)
Voith Paper GmbH and Co KG
Original Assignee
Jagenberg Papiertechnik GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6504169&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0682728(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jagenberg Papiertechnik GmbH filed Critical Jagenberg Papiertechnik GmbH
Publication of EP0682728A1 publication Critical patent/EP0682728A1/en
Application granted granted Critical
Publication of EP0682728B1 publication Critical patent/EP0682728B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
    • B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/202—Rotors with adjustable area of intercepted fluid
    • F05B2240/2022—Rotors with adjustable area of intercepted fluid by means of teetering or coning blades

Definitions

  • the invention relates to a metering system for devices for coating running material webs, especially paper or cardboard webs, according to Preamble of claim 1.
  • DE-A-30 22 955 describes a generic metering system with a doctor rod known, obtained from a doctor bed made of rubber-elastic material becomes.
  • the doctor bed is in a connection with the machine frame Mounted holder and on its back facing away from the doctor rod by one Pressure hose supported.
  • the relatively small adjustment range is caused by irregularities in the web and / or Roller further restricted across the working width. If locally in the cross section the irregularities, a higher coat weight occurs, the contact pressure be increased in order to obtain a uniform cross profile again. This limits again the height of the coat weight that can be applied.
  • the invention is based on the task of adjusting the stroke weight to expand a generic metering system, especially higher coat weights to be able to achieve with a uniform order.
  • the contact pressure generated by the pressure hose locally different across the working width to avoid system-related errors to balance the coat weight. This extends the Adjustment range for the stroke weight, since local irregularities occur when adjusting the stroke weight no longer affect the entire working width.
  • Streak weight can be set, e.g. B. to fluctuations in thickness in one Compensate the paper web or a smaller line thickness at the edges of the web achieve.
  • the metering system shown in Figure 1 is part of a device for coating a Paper or cardboard web with a pre-dosed film of coating material first produced on a roller 1 and then by this in a press nip between the roller 1 and a further press roller is delivered to the web.
  • the Roll 1 is therefore partially off the web in the area not shown in FIG. 1 entwined.
  • Such coating devices are e.g. B. in the DE-A-34 17 487.
  • the dosing system can also be used for direct dosing on a paper web be such.
  • the metering system contains as a metering element a doctor rod 2, which in a Roller 1 partially open doctor bed 3 rotatably mounted by means of a rotary drive is.
  • the diameter of the doctor rod 2 is 8 to 50 mm, preferably 10 mm up to 25 mm, their length corresponds to the working width of the coating device, the can be up to 10 m.
  • It is made of stainless steel, and its outer surface is wear-resistant coated, e.g. B. chrome or coated with ceramic.
  • That the Doctor bar 3 holding doctor bar 3 is made of an elastic, preferably rubber-elastic Material made with a Shore hardness of approx. 80, in the present exemplary embodiment made of rubber.
  • channels are open to the doctor rod 4 incorporated into the water during operation as a lubricant and cleaning agent is initiated.
  • the doctor bed 3 is mounted and points in a bed holder 5 which is open towards the roller 1 on its side facing the roller 1, two dovetail-like widenings to prevent the penetration of coating material into the holder 5.
  • the doctor bed 3 is on its rear side opposite the doctor rod 2 in the holder 5 from a extending across the working width towards Roller 1 pressurized pressure hose 6 supported in an adapted recess of the holder 5 is arranged.
  • the pressure hose 6 consists of individual separate pressure chambers 6.1-6.4, which - as can be seen from Figure 2 - each one have their own compressed air supply 7. They can be supplied with compressed air separately, in order to be able to set separate pressures in the chambers 6.1-6.4.
  • Prefers is the pressure hose 6 via a central one running parallel to the doctor rod 2 Web connected to the doctor bed 3.
  • the hose 6 can be separated on the back the doctor bed 3 arranged or be made with this in one piece.
  • the individual pressure chambers 6.1-6.4 are formed by - as shown in FIG the back of the doctor bed 3 a number of pressure hoses 6.1-6.4 immediately be arranged in succession. Alternatively, a single, through Partitioned pressure hose can be used.
  • the individual pressure chambers 6.1 - 6.4 have one measured parallel to the doctor rod 2 Length of about 300 - 500 mm. This length can be in critical areas, especially at the edges of the web, less and in non-critical areas, e.g. B. in the Middle of roller 1 or the web, be longer. In particular, it is also possible only to arrange separate pressure chambers at the edges in critical areas in order to to be able to work there with a lower hose pressure.
  • the hose 6 (or the hoses 6.1-6.4) consists of an elastic rubber Material with tube walls as thin as possible (wall thickness less than or equal to 3 mm), so that manufacturing inaccuracies do not have an effect on optimal positioning behavior and no hysteresis effects occur.
  • the hose 6 has a height parallel to Tangent to the roller 1 from 20 - 50 mm and is designed as a flat tube, d. H. its thickness radial to the roller 1 is less than its height.
  • the partitions between the individual Pressure chambers 6.1 - 6.4 also rubber-elastic, preferably from the same Material like the hose 6 and made with the same wall thickness, so on the Border areas between the pressure chambers 6.1 - 6.4 also on the doctor rod 1 can be influenced.
  • hose 6 on its rear side facing away from the doctor bed 3 is supported by a holder.
  • a common one is advantageous Holder 5 for the doctor bed 3 and the hose 6 available. It is the same possible to attach the bed 3 and the hose 6 to their own holder, which are then jointly adjustable in the direction of the roller 1 (e.g. in an adjustable one Support frame) are stored.
  • the doctor bed 3 is over in the direction of the roller 1 the required travel is limited in the holder with as little friction as possible 5 mounted, which is clamped in a clamping beam 9 fastened to a supporting beam 8 is.
  • the support beam 8 is adjustable in the direction of the roller 1 by a preselected one Gap between the roller 1 or the web lying on it and the To be able to adjust doctor bar 2.
  • the compressed air connections 7 are through holes in the back of the holder 5 outwards and via adjustable valves to one Compressed air supply, not shown, connected to one in each chamber 6.1 - 6.4 to be able to regulate individual pressure.
  • roller 1 There is an application system in the direction of rotation of roller 1 (arrow 10) in front of the metering system 11 arranged.
  • a nozzle applicator with an application chamber 12, which is closed at its outlet end by the metering system.
  • the application chamber 12 is of a small size Distance from the roller 1 ending overflow plate 13 limited, so that part of the via the adjustable feed channel 14 supplied coating material on the Inflow side overflows to prevent air and contaminants from entering Prevent application chamber 11.
  • a preselected gap between the doctor rod 2 and the roller 1 is set. Then coating material in the application chamber 12 is in excess applied to the roller 1, and the pressure chambers 6.1-6.4 are with Pressurized air is applied so that the doctor rod 2 is pressed in the direction of the roller 1 becomes.
  • the doctor rod 2 squeegees the coating material applied in excess down to the desired coat weight.
  • an overpressure between 0.3 and 1.3 bar is set. Each the higher the pressure in a section, the lower the coat weight in this section. So both the coat weight can be evened out also - if desired - a specific coat weight in individual areas to adjust.
  • the coating material applied to the roller 1 becomes then transfer to the paper or cardboard web in a press nip.
  • the method is carried out analogously, if from the application chamber 12 or one other order system, e.g. B. a roller application system, the coating material is applied directly to the web. Then the doctor rod 2 is on the Web and metered the amount of coating material to the above described way directly on the track.
  • one other order system e.g. B. a roller application system

Landscapes

  • Paper (AREA)
  • Coating Apparatus (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

Devices for coating paper or cardboard webs with a metering system which contains a doctor blade (2) as the metering component are known. The doctor blade (2) is held by a bed (3) of elastic, preferably rubber-elastic, material fitted in an adjustable holder (5) and supported on the rear away from the doctor blade (2) by a pressure hose (6) extending transversely across the working width. According to the invention, the pressure hose (6) is divided transversely over the working width into individual pressure chambers (6.1-6.4) to which compressed air can be separately applied.

Description

Technisches GebietTechnical field

Die Erfindung betrifft ein Dosiersystem für Vorrichtungen zum Beschichten von laufenden Materialbahnen, insbesondere Papier- oder Kartonbahnen, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a metering system for devices for coating running material webs, especially paper or cardboard webs, according to Preamble of claim 1.

Zum Beschichten von Papier- oder Kartonbahnen werden bekannterweise Vorrichtungen eingesetzt, die ein Auftragssystem zum Auftragen von Beschichtungsmaterial im Überschuß und ein nachfolgendes Dosiersystem mit einem Rakelelement aufweisen, das den Überschuß bis auf das gewünschte Strichgewicht wieder abrakelt. Das Auftragen und Dosieren erfolgt entweder direkt auf die Bahn in einem Bereich, in dem diese von einer Walze umgelenkt wird, oder indirekt zunächst auf eine ebenfalls die Bahn umlenkenden Walze, die anschließend den dosierten Film von Beschichtungsmaterial an die Bahn übergibt.Devices are known for coating paper or cardboard webs used an application system for applying coating material in the Have excess and a subsequent metering system with a doctor element, which scrapes the excess back to the desired coat weight. The Application and dosing take place either directly on the web in an area in which this is deflected by a roller, or indirectly first also on the Web deflecting roller, which then the metered film of coating material handed over to the railway.

Stand der TechnikState of the art

Aus der DE-A-30 22 955 ist ein gattungsgemäßes Dosiersystem mit einer Rakelstange bekannt, die von einem Rakelbett aus gummielastischen Material erhalten wird. Das Rakelbett ist in einem mit dem Maschinengestell in Verbindung stehenden Halter gelagert und an seiner der Rakelstange abgewandten Rückseite von einem Druckschlauch abgestützt. Mit diesem System läßt sich die Dicke des dosierten Films 1= Strichgewicht) auf der Walze oder der Bahn nur begrenzt über den Schlauchdruck variieren, da es erforderlich ist, die Rakelstange mit einem gewissen Anpreßdruck gegen die Walze zu drücken, damit sich über die Arbeitsbreite ein gleichmäßiges Profil einstellt. Ist der für ein gleichmäßiges Profil erforderliche Anpreßdruck höher als der von der Gegenwalze weg wirkende hydrodynamische Gegendruck im Dosierspalt zwischen der Walze bzw. Bahn und der Rakelstange, so läßt sich das Strichgewicht über den Anpreßdruck nicht mehr nennenswert beeinflussen.DE-A-30 22 955 describes a generic metering system with a doctor rod known, obtained from a doctor bed made of rubber-elastic material becomes. The doctor bed is in a connection with the machine frame Mounted holder and on its back facing away from the doctor rod by one Pressure hose supported. With this system the thickness of the metered film can be measured 1 = coat weight) on the roller or web only limited by the hose pressure vary, since it is necessary to apply the doctor rod with a certain pressure press against the roller so that there is an even spread over the working width Profile. Is the contact pressure required for a uniform profile higher than the hydrodynamic back pressure acting away from the counter roll in the metering gap between the roller or web and the doctor rod, so the coating weight no longer significantly influence the contact pressure.

Der relativ geringe Stellbereich wird durch Unregelmäßigkeiten der Bahn und/oder der Walze über die Arbeitsbreite weiter eingeschränkt. Falls im Querprofil lokal aufgrund der Unregelmäßigkeiten ein erhöhtes Strichgewicht auftritt, muß der Anpreßdruck erhöht werden, um wieder ein gleichmäßiges Querprofil zu erhalten. Dies beschränkt wiederum die Höhe des auftragbaren Strichgewichts.The relatively small adjustment range is caused by irregularities in the web and / or Roller further restricted across the working width. If locally in the cross section the irregularities, a higher coat weight occurs, the contact pressure be increased in order to obtain a uniform cross profile again. This limits again the height of the coat weight that can be applied.

Ähnliche Probleme treten auf, wenn Rakelstangen mit Umfangsrillen eingesetzt werden, so daß volumetrisch dosiert wird, also das Strichgewicht primär über den Rillenquerschnitt bestimmt wird. Diese Dosiersysteme reagieren unempfindlicher auf eine Änderung des Schlauchdrucks, so daß bei lokalen Unregelmäßigkeiten größere Druckänderungen erforderlich sind, die sich dann auf die gesamte Arbeitsbreite, also auch auf nicht zu korrigierende Bereiche, auswirken.Similar problems arise when using doctor bars with circumferential grooves be, so that dosing is volumetric, ie the coat weight primarily over the Groove cross section is determined. These dosing systems are less sensitive a change in hose pressure so that larger ones in the event of local irregularities Pressure changes are required, which then affect the entire working width, ie also affect areas that are not to be corrected.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, den Stellbereich für das Strichgewicht bei einem gattungsgemäßen Dosiersystem zu erweitern, insbesondere höhere Strichgewichte bei einem gleichmäßigen Auftrag erzielen zu können.The invention is based on the task of adjusting the stroke weight to expand a generic metering system, especially higher coat weights to be able to achieve with a uniform order.

Diese Aufgabe wird mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved with the features of patent claim 1.

Nach der Erfindung ist es möglich, den vom Druckschlauch erzeugten Anpreßdruck über die Arbeitsbreite lokal unterschiedlich einzustellen, um systembedingte Fehler zur Vergleichmäßigung des Strichgewichtes auszugleichen. Dies erweitert den Stellbereich für das Strichgewicht, da lokale Unregelmäßigkeiten sich bei der Strichgewichtseinstellung nicht mehr über die gesamte Arbeitsbreite auswirken. According to the invention, it is possible to use the contact pressure generated by the pressure hose locally different across the working width to avoid system-related errors to balance the coat weight. This extends the Adjustment range for the stroke weight, since local irregularities occur when adjusting the stroke weight no longer affect the entire working width.

Als weiterer Vorteil tritt hinzu, daß sich auch gezielt ein in einzelnen Bereichen unterschiedliches Strichgewicht einstellen läßt, z. B. um Dickenschwankungen in einer Papierbahn auszugleichen oder an den Bahnrändern eine geringere Strichdicke zu erzielen.Another advantage is that there is also a specific difference in individual areas Streak weight can be set, e.g. B. to fluctuations in thickness in one Compensate the paper web or a smaller line thickness at the edges of the web achieve.

Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausführungsformen der Erfindung.The subclaims contain preferred, since particularly advantageous, embodiments the invention.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.

Figur 1
zeigt einen Längsschnitt durch ein Dosiersystem nach der Erfindung
Figur 2
zeigt ausschnittsweise einen Querschnitt.
The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
Figure 1
shows a longitudinal section through a metering system according to the invention
Figure 2
shows a section of a cross section.

Wege zur Ausführung der ErfindungWays of Carrying Out the Invention

Das in Figur 1 gezeigte Dosiersystem ist Teil einer Vorrichtung zum Beschichten einer Papier- oder Kartonbahn, bei der ein vordosierter Film von Beschichtungsmaterial zunächst auf einer Walze 1 erzeugt und anschließend von dieser in einem Preßspalt zwischen der Walze 1 und einer weiteren Preßwalze an die Bahn abgegeben wird. Die Walze 1 ist daher in dem nicht in Figur 1 dargestellten Bereich teilweise von der Bahn umschlungen. Derartige Beschichtungsvorrichtungen sind z. B. in der DE-A-34 17 487 beschrieben.The metering system shown in Figure 1 is part of a device for coating a Paper or cardboard web with a pre-dosed film of coating material first produced on a roller 1 and then by this in a press nip between the roller 1 and a further press roller is delivered to the web. The Roll 1 is therefore partially off the web in the area not shown in FIG. 1 entwined. Such coating devices are e.g. B. in the DE-A-34 17 487.

Ebenso kann das Dosiersystem zum direkten Dosieren auf einer Papierbahn eingesetzt werden, wie z. B. in der DE-A-30 22 955 dargestellt. Dann ist die Walze 1 in dem in Figur 1 dargestellten Bereich mit dem Dosiersystem von der Papier- oder Kartonbahn umschlungen. The dosing system can also be used for direct dosing on a paper web be such. B. shown in DE-A-30 22 955. Then the roller 1 in the Figure 1 area shown with the metering system of the paper or cardboard web entwined.

Das Dosiersystem enthält als Dosierelement eine Rakelstange 2, die in einem zur Walze 1 hin teilweise offenen Rakelbett 3 mittels eines Drehantriebs drehbar gelagert ist. Der Durchmesser der Rakelstange 2 beträgt 8 bis 50 mm, vorzugsweise 10 mm bis 25 mm, ihre Länge entspricht der Arbeitsbreite der Beschichtungsvorrichtung, die bis zu 10 m betragen kann. Sie ist aus Edelstahl gefertigt, und ihre Mantelfläche ist verschleißfest beschichtet, z. B. verchromt oder mit Keramik beschichtet. Das die Rakelstange 2 haltende Rakelbett 3 ist aus einem elastischen, vorzugsweise gummielastischen Material mit einer Shore-Härte von ca. 80 gefertigt, im vorliegenden Ausführungsbeispiel aus Gummi. In das Rakelbett 3 sind zur Rakelstange 2 offene Kanäle 4 eingearbeitet, in die während des Betriebes Wasser als Schmier- und Reinigungsmittel eingeleitet wird.The metering system contains as a metering element a doctor rod 2, which in a Roller 1 partially open doctor bed 3 rotatably mounted by means of a rotary drive is. The diameter of the doctor rod 2 is 8 to 50 mm, preferably 10 mm up to 25 mm, their length corresponds to the working width of the coating device, the can be up to 10 m. It is made of stainless steel, and its outer surface is wear-resistant coated, e.g. B. chrome or coated with ceramic. That the Doctor bar 3 holding doctor bar 3 is made of an elastic, preferably rubber-elastic Material made with a Shore hardness of approx. 80, in the present exemplary embodiment made of rubber. In the doctor bed 3 2 channels are open to the doctor rod 4 incorporated into the water during operation as a lubricant and cleaning agent is initiated.

Das Rakelbett 3 ist in einem zur Walze 1 hin offenen Betthalter 5 gelagert und weist an seiner der Walze 1 zugewandten Seite zwei schwalbenschwanzähnliche Verbreiterungen auf, um das Eindringen von Beschichtungsmaterial in den Halter 5 zu verhindern. An seinem der Rakelstange 2 entgegengesetzten Rückseite ist das Rakelbett 3 im Halter 5 von einem sich quer über die Arbeitsbreite erstreckenden in Richtung zur Walze 1 drückenden Druckschlauch 6 abgestützt, der in einer angepaßten Aussparung des Halters 5 angeordnet ist. Der Druckschlauch 6 besteht aus einzelnen getrennten Druckkammern 6.1-6.4, die - wie aus Figur 2 ersichtlich - jeweils eine eigene Druckluftzufuhr 7 aufweisen. Sie sind so getrennt mit Druckluft beaufschlagbar, um in den Kammern 6.1-6.4 getrennte Drücke einstellen zu können. Bevorzugt ist der Druckschlauch 6 über einen parallel zur Rakelstange 2 verlaufenden mittigen Steg mit dem Rakelbett 3 verbunden. Der Schlauch 6 kann getrennt an der Rückseite des Rakelbetts 3 angeordnet oder mit diesem aus einem Stück gefertigt sein.The doctor bed 3 is mounted and points in a bed holder 5 which is open towards the roller 1 on its side facing the roller 1, two dovetail-like widenings to prevent the penetration of coating material into the holder 5. The doctor bed 3 is on its rear side opposite the doctor rod 2 in the holder 5 from a extending across the working width towards Roller 1 pressurized pressure hose 6 supported in an adapted recess of the holder 5 is arranged. The pressure hose 6 consists of individual separate pressure chambers 6.1-6.4, which - as can be seen from Figure 2 - each one have their own compressed air supply 7. They can be supplied with compressed air separately, in order to be able to set separate pressures in the chambers 6.1-6.4. Prefers is the pressure hose 6 via a central one running parallel to the doctor rod 2 Web connected to the doctor bed 3. The hose 6 can be separated on the back the doctor bed 3 arranged or be made with this in one piece.

Die einzelnen Druckkammern 6.1-6.4 werden gebildet, indem - wie in Fig. 2 gezeigt-an der Rückseite des Rakelbettes 3 eine Reihe von Druckschläuchen 6.1-6.4 unmittelbar aufeinanderfolgend angeordnet werden. Alternativ kann auch ein einziger, durch Zwischenwände unterteilter Druckschlauch eingesetzt werden.The individual pressure chambers 6.1-6.4 are formed by - as shown in FIG the back of the doctor bed 3 a number of pressure hoses 6.1-6.4 immediately be arranged in succession. Alternatively, a single, through Partitioned pressure hose can be used.

Die einzelnen Druckkammern 6.1 - 6.4 haben eine parallel zur Rakelstange 2 gemessene Länge von etwa 300 - 500 mm. Diese Länge kann in kritischen Bereichen, insbesondere an den Bahnrändern, geringer und in unkritischen Bereichen, z. B. in der Mitte der Walze 1 bzw. der Bahn, länger sein. Insbesondere ist es auch möglich, nur in kritischen Bereichen an den Rändern getrennte Druckkammern anzuordnen, um dort mit einem geringeren Schlauchdruck arbeiten zu können.The individual pressure chambers 6.1 - 6.4 have one measured parallel to the doctor rod 2 Length of about 300 - 500 mm. This length can be in critical areas, especially at the edges of the web, less and in non-critical areas, e.g. B. in the Middle of roller 1 or the web, be longer. In particular, it is also possible only to arrange separate pressure chambers at the edges in critical areas in order to to be able to work there with a lower hose pressure.

Der Schlauch 6 (bzw. die Schläuche 6.1-6.4) besteht aus einem gummielastischen Material mit möglichst dünnen Schlauchwänden (Wanddicke kleiner/gleich 3 mm), damit sich für ein optimales Stellverhalten Fertigungsungenauigkeiten nicht auswirken und keine Hystereseeffekte auftreten. Der Schlauch 6 weist eine Höhe parallel zur Tangente an die Walze 1 von 20 - 50 mm auf und ist als Flachschlauch ausgebildet, d. h. seine Dicke radial zur Walze 1 ist geringer als seine Höhe. Falls ein unterteilter Druckschlauch 6 eingesetzt wird, sind die Trennwände zwischen den einzelnen Druckkammern 6.1 - 6.4 ebenfalls gummielastisch, vorzugsweise aus dem gleichen Material wie der Schlauch 6 und mit gleicher Wandstärke gefertigt, damit an den Grenzbereichen zwischen den Druckkammern 6.1 - 6.4 ebenfalls auf die Rakelstange 1 eingewirkt werden kann.The hose 6 (or the hoses 6.1-6.4) consists of an elastic rubber Material with tube walls as thin as possible (wall thickness less than or equal to 3 mm), so that manufacturing inaccuracies do not have an effect on optimal positioning behavior and no hysteresis effects occur. The hose 6 has a height parallel to Tangent to the roller 1 from 20 - 50 mm and is designed as a flat tube, d. H. its thickness radial to the roller 1 is less than its height. If a divided Pressure hose 6 is used, the partitions between the individual Pressure chambers 6.1 - 6.4 also rubber-elastic, preferably from the same Material like the hose 6 and made with the same wall thickness, so on the Border areas between the pressure chambers 6.1 - 6.4 also on the doctor rod 1 can be influenced.

Wichtig ist, daß der Schlauch 6 an seiner dem Rakelbett 3 abgewandten Rückseite von einem Halter abgestützt ist. Im vorliegenden Beispiel ist vorteilhaft ein gemeinsamer Halter 5 für das Rakelbett 3 und den Schlauch 6 vorhanden. Ebenso ist es möglich, das Bett 3 und den Schlauch 6 jeweils an einem eigenen Halter zu befestigen, die dann gemeinsam in Richtung zur Walze 1 verstellbar (z. B. in einem verstellbaren Traggestell) gelagert sind.It is important that the hose 6 on its rear side facing away from the doctor bed 3 is supported by a holder. In the present example, a common one is advantageous Holder 5 for the doctor bed 3 and the hose 6 available. It is the same possible to attach the bed 3 and the hose 6 to their own holder, which are then jointly adjustable in the direction of the roller 1 (e.g. in an adjustable one Support frame) are stored.

Im vorliegenden Ausführungsbeispiel ist das Rakelbett 3 in Richtung zur Walze 1 über den erforderlichen Stellweg möglichst reibungsarm begrenzt beweglich in dem Halter 5 gelagert, der in einem an einem Tragbalken 8 befestigten Klemmbalken 9 festgeklemmt ist. Der Tragbalken 8 ist in Richtung zur Walze 1 verstellbar, um einen vorgewählten Spalt zwischen der Walze 1 bzw. der auf ihr aufliegenden Bahn und dem Rakelstab 2 einstellen zu können. Die Druckluftanschlüsse 7 sind durch Bohrungen in der Rückseite des Halters 5 nach außen geführt und über regelbare Ventile an eine nicht dargestellte Druckluftzufuhr angeschlossen, um in jeder Kammer 6.1 - 6.4 einen individuellen Druck regeln zu können. In the present exemplary embodiment, the doctor bed 3 is over in the direction of the roller 1 the required travel is limited in the holder with as little friction as possible 5 mounted, which is clamped in a clamping beam 9 fastened to a supporting beam 8 is. The support beam 8 is adjustable in the direction of the roller 1 by a preselected one Gap between the roller 1 or the web lying on it and the To be able to adjust doctor bar 2. The compressed air connections 7 are through holes in the back of the holder 5 outwards and via adjustable valves to one Compressed air supply, not shown, connected to one in each chamber 6.1 - 6.4 to be able to regulate individual pressure.

In Drehrichtung der Walze 1 (Pfeil 10) vor dem Dosiersystem ist ein Auftragsystem 11 angeordnet. Im vorliegenden Beispiel ein Düsenauftragwerk mit einer Auftragkammer 12, die an ihrem auslaufseitigen Ende von dem Dosiersystem abgeschlossen ist. An dem einlaufseitigen Ende ist die Auftragkammer 12 von einer mit geringem Abstand von der Walze 1 endenden Überlaufplatte 13 begrenzt, so daß ein Teil des über den einstellbaren Zufuhrkanal 14 zugeführten Beschichtungsmaterials an der Einlaufseite überfließt, um das Eindringen von Luft und Verunreinigungen in die Auftragkammer 11 zu verhindern.There is an application system in the direction of rotation of roller 1 (arrow 10) in front of the metering system 11 arranged. In the present example, a nozzle applicator with an application chamber 12, which is closed at its outlet end by the metering system. At the inlet end, the application chamber 12 is of a small size Distance from the roller 1 ending overflow plate 13 limited, so that part of the via the adjustable feed channel 14 supplied coating material on the Inflow side overflows to prevent air and contaminants from entering Prevent application chamber 11.

Vor Beginn des Beschichtungsvorgangs wird zunächst durch Verstellung des Tragbalkens 8 ein vorgewählter Spalt zwischen der Rakelstange 2 und der Walze 1 eingestellt. Anschließend wird Beschichtungsmaterial in der Auftragkammer 12 im Überschuß auf die Walze 1 aufgetragen, und die Druckkammern 6.1-6.4 werden mit Druckluft beaufschlagt, so daß die Rakelstange 2 in Richtung zur Walze 1 gedrückt wird. Die Rakelstange 2 rakelt das im Überschuß aufgetragene Beschichtungsmaterial bis auf das gewünschte Strichgewicht wieder ab. In Abhängigkeit von dem Strichgewicht in den einzelnen Walzenbereichen, wird in den zugehörigen Schlauchabschnitten (Druckkammern 6.1-6.4) ein Überdruck zwischen 0,3 und 1,3 bar eingestellt. Je höher der Druck in einem Abschnitt ist, desto geringer stellt sich das Strichgewicht in diesem Abschnitt ein. So läßt sich sowohl das Strichgewicht vergleichmäßigen, als auch - falls gewünscht - in einzelnen Bereichen gezielt ein unterschiedliches Strichgewicht einstellen. Das auf die Walze 1 aufgetragene Beschichtungsmaterial wird anschließend in einem Preßspalt an die Papier- oder Kartonbahn übergeben.Before starting the coating process, first adjust the support beam 8 a preselected gap between the doctor rod 2 and the roller 1 is set. Then coating material in the application chamber 12 is in excess applied to the roller 1, and the pressure chambers 6.1-6.4 are with Pressurized air is applied so that the doctor rod 2 is pressed in the direction of the roller 1 becomes. The doctor rod 2 squeegees the coating material applied in excess down to the desired coat weight. Depending on the stroke weight in the individual roller areas, in the associated hose sections (Pressure chambers 6.1-6.4) an overpressure between 0.3 and 1.3 bar is set. Each the higher the pressure in a section, the lower the coat weight in this section. So both the coat weight can be evened out also - if desired - a specific coat weight in individual areas to adjust. The coating material applied to the roller 1 becomes then transfer to the paper or cardboard web in a press nip.

Analog wird das Verfahren durchgeführt, falls von der Auftragkammer 12 oder einem anderen Auftragsystem, z. B. einem Walzen-Auftragssystem, das Beschichtungsmaterial direkt auf die Bahn aufgetragen wird. Dann liegt die Rakelstange 2 auf der Bahn auf und dosiert die Menge an Beschichtungsmaterial auf die vorstehend beschriebene Weise direkt auf der Bahn.The method is carried out analogously, if from the application chamber 12 or one other order system, e.g. B. a roller application system, the coating material is applied directly to the web. Then the doctor rod 2 is on the Web and metered the amount of coating material to the above described way directly on the track.

Claims (4)

  1. A metering system for devices used for coating continuous material webs, in particular of paper or cardboard consisting of a doctor blade (2) as the metering device mounted on a doctor blade bed (3) made of an elastic, preferably rubber-like, material, where the base is mounted in an adjustable holder (5) and supported on its rear, i.e. the side facing away from the doctor blade (2), by a compressed air hose (6) stretching across the working width of the device where the hose is divided into individual pressure chambers (6.1-6.4) into which compressed air can be pumped independently of each other.
  2. A method as disclosed in Claim 1 where the doctor blade bed (3) and the compressed air hose (6) are mounted in a common, laterally adjustable holder (5).
  3. A method as disclosed in Claim 1 or 2, where the hose (6) is made of a rubber-like material with a wall thickness of less than or equal to 3 mm.
  4. A method as disclosed Claim 2 or 3 where each pressure chamber (6.1 - 6.4) has its own compressed air connection (7) which egresses through the rear of the holder (5).
EP95903275A 1993-12-06 1994-11-24 Metering system for devices for coating materials webs, especially paper or cardboard webs Revoked EP0682728B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4341341 1993-12-06
DE4341341A DE4341341C1 (en) 1993-12-06 1993-12-06 Metering system for devices for coating material webs, in particular paper or board webs
PCT/EP1994/003885 WO1995016074A1 (en) 1993-12-06 1994-11-24 Metering system for devices for coating materials webs, especially paper or cardboard webs

Publications (2)

Publication Number Publication Date
EP0682728A1 EP0682728A1 (en) 1995-11-22
EP0682728B1 true EP0682728B1 (en) 1998-12-30

Family

ID=6504169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95903275A Revoked EP0682728B1 (en) 1993-12-06 1994-11-24 Metering system for devices for coating materials webs, especially paper or cardboard webs

Country Status (7)

Country Link
EP (1) EP0682728B1 (en)
JP (1) JPH08506525A (en)
AT (1) ATE175251T1 (en)
DE (2) DE4341341C1 (en)
ES (1) ES2128035T3 (en)
FI (1) FI100814B (en)
WO (1) WO1995016074A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005123269A1 (en) * 2004-06-18 2005-12-29 Voith Patent Gmbh Doctor blade device

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432177A1 (en) * 1994-09-09 1996-03-14 Voith Gmbh J M An applicator gap is adjustable as pulp coat flows on moving paper web
EP0701022B1 (en) * 1994-09-09 2001-04-04 Voith Paper Patent GmbH Coating machine for applying directly or indirectly a fluid or pasty material onto a moving web
DE29510486U1 (en) * 1995-06-30 1995-08-17 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Squeegee assembly
US5599392A (en) * 1995-07-24 1997-02-04 Beloit Technologies, Inc. Rod holder with separate positionable contact elements for rod metering
ES2167480T3 (en) * 1995-07-29 2002-05-16 Jagenberg Papiertech Gmbh APPLICATION SYSTEM FOR A DEVICE FOR THE COVERING OF A PAPER OR CARTON BAND.
DE29609053U1 (en) * 1996-05-20 1996-08-22 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Device for the direct or indirect application or final metering of a liquid or pasty medium onto a running material web
DE29610773U1 (en) * 1996-06-19 1996-09-05 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Free jet nozzle application device
DE19626580A1 (en) * 1996-07-02 1998-01-08 Jagenberg Papiertech Gmbh Metering rod system for a coater for web products such as paper
DE29612843U1 (en) * 1996-07-24 1996-09-26 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Applicator for the direct application of a liquid or pasty medium to a running material web, especially made of paper or cardboard
DE19631888A1 (en) * 1996-08-07 1998-02-12 Voith Sulzer Papiermasch Gmbh Applicator for direct or indirect application of a liquid or pasty coating medium to a running material web, in particular made of paper or cardboard
DE19631913A1 (en) * 1996-08-07 1998-02-19 Voith Sulzer Papiermasch Gmbh Web coating applicator for coating ink or dye to web of paper, etc.
DE19637164A1 (en) * 1996-09-12 1998-03-19 Voith Sulzer Papiermasch Gmbh Method and device for the direct or indirect application of a liquid or pasty medium to a running material web
DE29621878U1 (en) * 1996-12-17 1997-02-13 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Cleaning device
DE29622365U1 (en) * 1996-12-23 1997-06-19 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Application unit for direct or indirect application of a liquid or pasty medium to a running material web
DE19723458A1 (en) 1997-06-04 1998-12-10 Voith Sulzer Papiermasch Gmbh Device and method for applying a liquid or pasty medium to a moving surface
DE19731947A1 (en) * 1997-07-24 1999-01-28 Voith Sulzer Papiermasch Gmbh Liquid or paste applicator regulation method
DE19738356A1 (en) * 1997-09-02 1999-03-04 Voith Sulzer Papiermasch Gmbh Device for stripping and / or dosing a liquid to pasty medium on a moving work surface; Keyword: floating squeegee
DE19743520B4 (en) * 1997-10-01 2005-12-08 Voith Paper Patent Gmbh Squeegee device for a device for applying a liquid to pasty medium on a passing underground
DE19846708A1 (en) * 1998-10-09 2000-04-13 Jagenberg Papiertech Gmbh Dosing system for devices for coating material webs, in particular paper or cardboard webs
DE19854448A1 (en) * 1998-11-25 2000-05-31 Voith Sulzer Papiertech Patent Device and method for applying a liquid or pasty application medium to a running surface
DE19858653A1 (en) * 1998-12-18 2000-06-21 Voith Sulzer Papiertech Patent Coating a moving web surface uses a controlled feed pump capacity to set the amount of medium delivered to the applicator to determine the mean coating weight with little or no surplus residue
DE19904112A1 (en) * 1999-02-02 2000-08-03 Voith Sulzer Papiertech Patent Web coating station has two setting units to position the doctor blade upstream and downstream of it acting at different points from the blade edge to use less energy with a relatively high response speed
US7344665B2 (en) * 2002-10-23 2008-03-18 3M Innovative Properties Company Coating die with expansible chamber device
DE102004018770A1 (en) * 2004-04-17 2005-11-03 Voith Paper Patent Gmbh Scraper blade pneumatic clamp for papermaking assembly incorporates secondary expansion hose
DE102004037532A1 (en) * 2004-08-03 2006-03-16 Voith Paper Patent Gmbh applicator
JP5688566B2 (en) * 2012-02-23 2015-03-25 パナソニックＩｐマネジメント株式会社 Application bar and application device
DE102012003701A1 (en) * 2012-02-28 2013-08-29 Sm-Klebetechnik Vertriebs Gmbh Coating system for applying e.g. foaming materials on carrier, has contact surface lying opposite to slot nozzle, and to-be coated material arranged between slot nozzle and contact surface, which is adjusted in direction of slot of nozzle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1499057A1 (en) * 1965-05-15 1969-10-02 Jagenberg Werke Ag Device for guiding and / or treating moving material webs
DE2008082B2 (en) * 1970-02-21 1973-05-03 Jagenberg-Werke AG, 4000 Düsseldorf DEVICE FOR REGULATING THE APPLICATION THICKNESS WHEN COATING MOVING RAILS OF MATERIAL
US4245582A (en) * 1979-02-02 1981-01-20 Beloit Corporation Adjustable rod holder for metering rod coaters
DE3022955C2 (en) * 1980-06-19 1982-12-16 Jagenberg-Werke AG, 4000 Düsseldorf Device for regulating the application thickness when coating moving material webs
DE3620864A1 (en) * 1986-06-21 1988-01-14 Kuesters Eduard Maschf METHOD AND DEVICE FOR PATTERNING A TRACK OF GOODS
DE3703834A1 (en) * 1987-02-07 1988-08-18 Jagenberg Ag ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS
DE3729621A1 (en) * 1987-09-04 1989-03-16 Jagenberg Ag DEVICE FOR COATING A MATERIAL RAIL THROUGH A COUNTER ROLLER
SE468344B (en) * 1991-09-25 1992-12-21 Btg Kaelle Inventing Ab DEVICE AND PROCEDURES FOR LEAVE COATING OF A CURRENT PATH
FI91903C (en) * 1992-03-19 1994-08-25 Valmet Paper Machinery Inc Holder for a coating rod or coating blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005123269A1 (en) * 2004-06-18 2005-12-29 Voith Patent Gmbh Doctor blade device

Also Published As

Publication number Publication date
ES2128035T3 (en) 1999-05-01
FI100814B (en) 1998-02-27
DE4341341C1 (en) 1995-03-09
DE59407565D1 (en) 1999-02-11
JPH08506525A (en) 1996-07-16
FI953719A0 (en) 1995-08-04
WO1995016074A1 (en) 1995-06-15
FI953719A (en) 1995-08-04
EP0682728A1 (en) 1995-11-22
ATE175251T1 (en) 1999-01-15

Similar Documents

Publication Publication Date Title
EP0682728B1 (en) Metering system for devices for coating materials webs, especially paper or cardboard webs
EP0307618B1 (en) Apparatus for coating a web material moving around a counter roll
DE2228685C3 (en) Coating device
AT392602B (en) COATING DEVICE FOR COATING RUNNING PRODUCTS
AT396436B (en) DEVICE AND METHOD FOR COATING CONTINUOUS GOODS
DE2555669C3 (en) Device for scraping off excess coating
DE2012598A1 (en) Smoothing doctor coating device
DE19605183A1 (en) Process for regulating the stroke weight cross profile
DE3347735A1 (en) COATING DEVICE FOR COATING RUNNING PRODUCTS
DE4334555C2 (en) Mount for a squeegee rod
DE10045515B4 (en) Squeegee metering
DE19714645A1 (en) Web coating station roller
DE3337052A1 (en) COATING DEVICE FOR COATING RUNNING PRODUCTS
EP0406529A2 (en) Coating device
EP0906788A2 (en) Doctoring device for an apparatus for applying a fluid or pasty material on a moving substrate
EP0071149B1 (en) Apparatus for the weight control of coatings on a travelling web
DE4208897A1 (en) APPLICATION TOOL FOR COATING PAPERS OR CARDBOARDS
DE19846708A1 (en) Dosing system for devices for coating material webs, in particular paper or cardboard webs
EP0029865B1 (en) Apparatus and process for coating moving webs of e.g. paper or board
DE3225982A1 (en) INK FOR A LITHOGRAPHIC PRINTING MACHINE
EP0757129A1 (en) Application system for a device for coating a paper or paperboard sheet
AT407014B (en) STROKE BLADE
DE3213572A1 (en) Machine for flattening saw blades for bandsaws
DE3942590A1 (en) PAINTING DEVICE
DE19604934A1 (en) Application system for a device for coating a paper or cardboard web

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: 19950616

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE ES FR GB IT NL SE

17Q First examination report despatched

Effective date: 19970205

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT NL SE

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

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: 19981230

REF Corresponds to:

Ref document number: 175251

Country of ref document: AT

Date of ref document: 19990115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990111

REF Corresponds to:

Ref document number: 59407565

Country of ref document: DE

Date of ref document: 19990211

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2128035

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: VOITH SULZER PAPIERMASCHINEN GMBH

Effective date: 19990920

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

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

Ref country code: GB

Payment date: 20011012

Year of fee payment: 8

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: VOITH PAPER JAGENBERG GMBH

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

Ref country code: ES

Payment date: 20021111

Year of fee payment: 9

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

Ref country code: FR

Payment date: 20021119

Year of fee payment: 9

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: 20021124

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

GBPC Gb: european patent ceased through non-payment of renewal fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20031121

Year of fee payment: 10

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

Ref country code: SE

Payment date: 20031124

Year of fee payment: 10

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: VOITH PAPER GMBH & CO. KG

27W Patent revoked

Effective date: 20040212

REG Reference to a national code

Ref country code: SE

Ref legal event code: ECNC

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

Ref country code: DE

Payment date: 20041105

Year of fee payment: 11

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO