EP3180475B2 - Coating device - Google Patents

Coating device Download PDF

Info

Publication number
EP3180475B2
EP3180475B2 EP15753634.3A EP15753634A EP3180475B2 EP 3180475 B2 EP3180475 B2 EP 3180475B2 EP 15753634 A EP15753634 A EP 15753634A EP 3180475 B2 EP3180475 B2 EP 3180475B2
Authority
EP
European Patent Office
Prior art keywords
medium
cross
base body
liquid
machine direction
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.)
Active
Application number
EP15753634.3A
Other languages
German (de)
French (fr)
Other versions
EP3180475A1 (en
EP3180475B1 (en
Inventor
Christoph Henninger
Jochen Meinel
Gerd THIEL
Jan APPRICH
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 Patent GmbH
Original Assignee
Voith Patent 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=53938309&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3180475(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP3180475A1 publication Critical patent/EP3180475A1/en
Application granted granted Critical
Publication of EP3180475B1 publication Critical patent/EP3180475B1/en
Publication of EP3180475B2 publication Critical patent/EP3180475B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/24—Addition to the formed paper during paper manufacture
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets

Definitions

  • the invention relates to a device for the direct or indirect application of a liquid or pasty medium to a moving material web, in particular a fibrous web, such as a paper, cardboard or tissue web, according to the preamble of claim 1.
  • coating units a liquid or pasty medium in the form of starch, glue or coating color is applied to the running fibrous web.
  • coating units are well known in the prior art and include various designs and application methods.
  • the liquid or pasty medium is applied in excess directly to the fibrous web and then partially removed by means of a blade or a doctor blade to produce a defined layer thickness of the medium.
  • the liquid or pasty medium is applied in excess directly to a roller, the so-called application roller, and then partially removed from the application roller again using a blade or a doctor blade to produce a defined layer thickness of the medium before the medium is transferred in a transfer gap from the application roller to the fibrous web.
  • such coating units have a so-called medium distribution pipe by means of which the liquid or pasty medium is first distributed in the cross machine direction before it passes through an outlet opening of a medium discharge chamber and is applied to the roller or material web.
  • the medium distribution pipe is designed as a hollow cylindrical base body with an oval, in particular circular or elliptical cross-sectional shape
  • the base body of the medium distribution pipe can be provided inexpensively by one or more standard pipe (s) that are freely available commercially.
  • the hollow cylindrical base body is made with very thick walls, i.e. has a wall thickness between 3 millimeters and 25 millimeters, it can be used in addition to the task of transverse distribution - i.e. Distribution in the cross-machine direction of the medium provide at least part of the dimensional stability of the application unit against deflection in the cross-machine direction.
  • the supporting beam which is otherwise responsible for dimensional stability, can be made much simpler or it can be completely dispensed with.
  • the outflow channels can also be provided completely through bores in the hollow body without these having to be provided, for example, by separate cylinder sleeves with a defined length, which is necessary with the known thin-walled medium distribution pipes to provide the necessary pressure drop via the outflow channels, which is necessary for a uniform outflow of the medium over the length of the medium distribution pipe in the cross machine direction.
  • One criterion for selecting the wall thickness of the hollow cylindrical base body can be its length in the cross machine direction, which results in different requirements for providing dimensional stability.
  • the required pressure drop through the outflow channels can be used as a further criterion for determining the wall thickness of the hollow cylindrical base body.
  • Investigations by the applicant show in this connection that the hollow cylindrical base body preferably has a wall thickness in the range of 4-25 millimeters, preferably 8-20 millimeters.
  • the wall thickness of the medium distribution pipe and its length are preferably matched to one another in such a way that the dimensional stability of the application unit against deflection along the cross machine direction is essentially provided by the medium distribution pipe.
  • the hollow cylindrical base body can also have a diameter in the range of 70-200 millimeters, in particular 100-150 millimeters, which, in conjunction with the wall thickness which is greater than in the prior art, significantly increases its dimensional stability compared to deflection in the cross machine direction. If the base body does not have a circular cross-sectional shape, but if it is, for example, elliptical, it preferably has a cross-sectional area which corresponds to the circular cross-sectional shape in the diameter range specified above.
  • the hollow cylindrical base body is formed by a plurality of metallic tubes with an oval, in particular circular or elliptical cross-sectional shape.
  • the base body is provided by several standard tubes, for example made of stainless steel.
  • the base body is formed from a plurality of tubes of shorter length than the base body, which are arranged one behind the other with their length oriented in the cross-machine direction and are connected to one another, in particular welded to one another, at their facing end faces.
  • the radially inner lateral surface of the hollow cylindrical base body is ground and / or polished.
  • the radially inner lateral surface has a roughness in the range of 0.1-3.0 mm Ra, preferably in the range of 0.2-1.6 mm Ra, particularly preferably in the range of 0.3-0.9 mm Ra .
  • the outflow channels are preferably formed by bores in the hollow cylindrical base body.
  • manufacturing outlay and material costs can be further reduced, since the outflow channels do not have to be provided by separate hollow-cylindrical sleeves.
  • the bores are made in the hollow cylindrical base body before it is ground and / or polished. This allows burrs that arise during drilling to be removed immediately with the subsequent grinding and / or polishing.
  • the bores preferably have a diameter in the range of 4-15 millimeters at the minimum cross-sectional area.
  • the medium distribution pipe is usually supplied with the liquid or pasty medium on one of its end faces through at least one, in particular one, inflow line. It is preferably provided that the at least one inflow line has an oval, in particular circular or elliptical cross-sectional shape.
  • the inflow line preferably has, in particular, the same cross-sectional shape as the medium distribution pipe.
  • the inflow line at the transition to the medium distribution pipe has the same cross-sectional area and the same cross-sectional shape as the medium distribution pipe. This is possible in particular when the cross-sectional area of the inflow line widens or tapers conically from a point further away from the transition to the transition to the medium distribution pipe.
  • the sum of the minimum cross-sectional areas of the outflow channels, the wall thickness of the base body and the sum of the cross-sectional areas of the at least one inflow channel, in particular the cross-sectional area of the single inflow channel introduced at the front , as well as the distance from the first to the last outflow channel in the cross machine direction are coordinated in such a way that the pressure drop of the liquid or pasty medium from the first to the last outflow channel viewed in the cross machine direction is less than the pressure drop of the liquid or pasty medium through each of the outflow channels.
  • the distance between the first and last discharge duct in the cross machine direction is preferably equal to the web width. If, for example, the web width is 10,000 millimeters, then the distance between the first and last discharge duct in the cross-machine direction is also 10,000 millimeters.
  • the device additionally comprises a supporting beam, the medium distribution pipe providing a part, e.g. at least 25%, in particular the larger part, i.e. more than 50%, of the dimensional stability compared to the supporting beam.
  • the application unit also includes a leveling device, by means of which the liquid or pasty medium applied to the material web or roller is partially removed and / or evened out in order to finally create a layer formed from the medium on the material web, in particular fibrous web, with in the machine direction and cross-machine direction provide the same and defined thickness.
  • a leveling device by means of which the liquid or pasty medium applied to the material web or roller is partially removed and / or evened out in order to finally create a layer formed from the medium on the material web, in particular fibrous web, with in the machine direction and cross-machine direction provide the same and defined thickness.
  • the length of the medium distribution pipe is more than 1 m, preferably more than 2 m, particularly preferably more than 3 m.
  • the medium distribution pipe extends over the entire cross machine direction or the entire width of the material web.
  • FIGURE shows an application unit 2 of a device 1 according to the invention for the direct or indirect application of a liquid or pasty medium to a moving material web in cross section.
  • the cross machine direction extends perpendicular to the plane of the drawing.
  • the application unit 2 has a medium distribution pipe 3 which extends in its length in the cross machine direction of the device and which communicates via a multiplicity of outflow channels 4 arranged one behind the other in the cross machine direction with a medium discharge chamber 5 which extends in length in the cross machine direction in such a way that the liquid or pasty medium is first distributed in the medium distribution pipe 3 in the cross machine direction and fed through the outflow channels 4 to the medium discharge chamber 5 before it passes through an outlet opening 6 of the medium discharge chamber 5 and is applied to the roller 7 in the present case.
  • the medium discharge chamber 5 comprises a front and a rear lip 8, 9 as well as a front chamber floor 10 and a rear chamber floor 11.
  • the medium distribution pipe 3 is formed by a hollow cylindrical base body with a circular cross-sectional shape and a wall thickness of 8-14 millimeters.
  • the hollow cylindrical base body has a diameter in the range 120-150 millimeters and is formed by a stainless steel pipe or several stainless steel pipes, the stainless steel pipe or the several stainless steel pipes being or are seamless. Furthermore, the radially inner lateral surface of the stainless steel pipe or the stainless steel pipes is ground and / or polished to a roughness of 0.4-0.7 ⁇ m Ra.
  • the outflow channels 4 are formed by bores in the hollow cylindrical base body 3.
  • the length of the medium distribution pipe 3 in the cross machine direction is usually more than 1 m. In modern systems, this length can also be significantly longer, e.g. more than 2m, up to 10m or more.
  • the hollow cylindrical base body is always formed by several pipes, especially stainless steel pipes, which are connected to one another by welding, for example. It is provided here that the entire radially inner lateral surface of the hollow cylindrical base body, in particular also in the area of the connection points of the tubes, has a roughness in the range of 0.1-3.0 mm Ra, in particular in the range of 0.3-0.9 mm Ra has.

Landscapes

  • Paper (AREA)
  • Coating Apparatus (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn, insbesondere Faserstoffbahn, wie Papier-, Karton- oder Tissuebahn, nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a device for the direct or indirect application of a liquid or pasty medium to a moving material web, in particular a fibrous web, such as a paper, cardboard or tissue web, according to the preamble of claim 1.

Mit solchen Vorrichtungen, oftmals auch Streichaggregate genannt, wird ein flüssiges oder pastöses Medium in Form von Stärke, Leim oder Streichfarbe auf die laufende Faserstoffbahn aufgetragen. Solche Streichaggregate sind im Stand der Technik hinreichend bekannt und umfassen verschiedene Ausgestaltungen und Auftragsverfah ren.With such devices, often also called coating units, a liquid or pasty medium in the form of starch, glue or coating color is applied to the running fibrous web. Such coating units are well known in the prior art and include various designs and application methods.

Beim sog. direkten Auftrag wird bei einer Variante das flüssige oder pastöse Medium im Überschuss direkt auf die Faserstoffbahn aufgebracht und anschließend zur Herstellung einer definierten Schichtdicke des Mediums mittels einer Klinge oder eines Rakels teilweise abgetragen. Beim sog. indirekten Auftrag wird bei einer Variante das flüssige oder pastöse Medium im Überschuss direkt auf eine Walze, sog. Auftragswalze, aufgebracht und anschließend zur Herstellung einer definierten Schichtdicke des Mediums mittels einer Klinge oder eines Rakels teilweise wieder von der Auftragswalze abgetragen bevor das Medium in einem Übertragungsspalt von der Auftragswalze auf die Faserstoffbahn übertragen wird.In the so-called direct application, in one variant, the liquid or pasty medium is applied in excess directly to the fibrous web and then partially removed by means of a blade or a doctor blade to produce a defined layer thickness of the medium. In the so-called indirect application, in one variant, the liquid or pasty medium is applied in excess directly to a roller, the so-called application roller, and then partially removed from the application roller again using a blade or a doctor blade to produce a defined layer thickness of the medium before the medium is transferred in a transfer gap from the application roller to the fibrous web.

Zur gleichmäßigen Verteilung des Mediums in Maschinenquerrichtung weisen solche Streichaggregate ein sog. Mediumverteilrohr auf mittels dem das flüssige oder pastöse Medium zuerst in Maschinenquerrichtung verteilt wird, bevor dieses durch eine Austrittsöffnung einer Mediumaustragskammer tritt und auf die Walze oder Materialbahn aufgebracht wird.For even distribution of the medium in the cross machine direction, such coating units have a so-called medium distribution pipe by means of which the liquid or pasty medium is first distributed in the cross machine direction before it passes through an outlet opening of a medium discharge chamber and is applied to the roller or material web.

Solche Mediumverteilrohre sind bei den heute bekannten Streichaggregaten oftmals entweder durch geometrisch komplexe und aufwändige Schweißkonstruktionen oder durch geometrisch komplexe und noch aufwändigere aus dem Vollmaterial gebildete Grundkörper aufgebaut, die in der Herstellung teuer sind. Ferner übernehmen die Mediumverteilrohre bei den heute bekannten Streichaggregaten lediglich die Aufgabe der Querverteilung bzw. Verteilung in Maschinenquerrichtung des Mediums. Auch die Schrift WO 2012/118438 beschreibt eine Auftragsvorrichtung mit einem Medienverteilrohr. Aufgrund von stetigem Kostendruck in der Papierindustrie ist es notwendig bei gleicher oder sogar verbesserter Performance nach kostengünstigeren als den bekannten Lösungen zu suchen, um wettbewerbsfähig zu bleiben.In the coating units known today, such medium distribution pipes are often constructed either by means of geometrically complex and elaborate welded constructions or by means of geometrically complex and even more elaborate base bodies formed from the solid material, which are expensive to manufacture. Furthermore, the medium distribution pipes in the coating units known today only take on the task of transverse distribution or distribution in the cross machine direction of the medium. The writing too WO 2012/118438 describes an application device with a media distribution pipe. Due to the constant cost pressure in the paper industry, it is necessary to look for more cost-effective solutions than the known solutions with the same or even better performance in order to remain competitive.

Es ist somit die Aufgabe der vorliegenden Erfindung, eine kostengünstigere Lösung für ein solches Streichaggregat vorzuschlagen.It is therefore the object of the present invention to propose a more cost-effective solution for such a coating unit.

Die Aufgabe wird durch eine Vorrichtung mit den Merkmalen des Patentanspruchs 1 gelöst.The object is achieved by a device with the features of claim 1.

Dadurch dass das Mediumverteilrohr durch einen hohlzylindrischen Grundkörper mit einer ovalen, insbesondere kreisrunden oder elliptischen Querschnittsform ausgeführt ist, kann der Grundkörper des Mediumverteilrohrs durch ein oder mehrere frei im Handel verfügbare(s) Norm-Rohr(e) kostengünstig bereitgestellt werden.Because the medium distribution pipe is designed as a hollow cylindrical base body with an oval, in particular circular or elliptical cross-sectional shape, the base body of the medium distribution pipe can be provided inexpensively by one or more standard pipe (s) that are freely available commercially.

Dadurch dass der hohlzylindrische Grundkörper recht dickwandig ausgeführt ist, d.h. eine Wandstärke zwischen 3 Millimetern und 25 Millimetern hat, kann dieser zusätzlich zur Aufgabe der Querverteilung -d.h. Verteilung in Maschinenquerrichtung- des Mediums zumindest einen Teil der Dimensionsstabilität der Auftragseinheit gegenüber Durchbiegung in Maschinenquerrichtung bereitstellen. Hierdurch kann der sonst für die Dimensionsstabilität zuständige Tragbalken deutlich einfacher ausgeführt sein oder es kann auf diesen vollständig verzichtet werden.Because the hollow cylindrical base body is made with very thick walls, i.e. has a wall thickness between 3 millimeters and 25 millimeters, it can be used in addition to the task of transverse distribution - i.e. Distribution in the cross-machine direction of the medium provide at least part of the dimensional stability of the application unit against deflection in the cross-machine direction. As a result, the supporting beam, which is otherwise responsible for dimensional stability, can be made much simpler or it can be completely dispensed with.

Durch die Wandstärke des hohlzylindrischen Grundkörpers zwischen 3 Millimetern und 25 Millimetern können ferner die Ausströmkanäle komplett durch Bohrungen im Hohlkörper bereitgestellt werden ohne dass diese bspw. durch separate Zylinderhülsen mit einer definierten Länge bereitgestellt werden müssen, was bei den bekannten dünnwandigen Mediumverteilrohren notwendig ist, um den über die Ausströmkanäle notwendigen Druckabfall bereitzustellen, was für eine gleichmäßige Ausströmung des Mediums über die Länge des Mediumverteilrohrs in Maschinenquerrichtung notwendig ist.Due to the wall thickness of the hollow cylindrical base body between 3 millimeters and 25 millimeters, the outflow channels can also be provided completely through bores in the hollow body without these having to be provided, for example, by separate cylinder sleeves with a defined length, which is necessary with the known thin-walled medium distribution pipes to provide the necessary pressure drop via the outflow channels, which is necessary for a uniform outflow of the medium over the length of the medium distribution pipe in the cross machine direction.

Vorteilhafte Ausgestaltungen und Weiterbildungen sind in den Unteransprüchen angegeben.Advantageous refinements and developments are specified in the subclaims.

Ein Kriterium zur Auswahl der Wandstärke des hohlzylindrischen Grundkörpers kann dessen Länge in Maschinenquerrichtung sein, wodurch unterschiedliche Anforderungen zur Bereitstellung der Dimensionsstabilität erwachsen. Als weiteres Kriterium für die Festlegung der Wandstärke des hohlzylindrischen Grundkörpers kann der benötigte Druckabfall durch die Abströmkanäle herangezogen werden. Untersuchungen der Anmelderin ergeben in diesem Zusammenhang, dass der hohlzylindrische Grundkörper vorzugsweise eine Wandstärke im Bereich von 4 - 25 Millimeter, bevorzugt 8 - 20 Millimeter hat. Vorzugsweise sind die Wandstärke des Mediumverteilrohrs und dessen Länge derart aufeinander abgestimmt, dass die Dimensionsstabilität der Auftragseinheit gegenüber Durchbiegung entlang der Maschinenquerrichtung im Wesentlichen durch das Mediumverteilrohr bereitgestellt wird.One criterion for selecting the wall thickness of the hollow cylindrical base body can be its length in the cross machine direction, which results in different requirements for providing dimensional stability. The required pressure drop through the outflow channels can be used as a further criterion for determining the wall thickness of the hollow cylindrical base body. Investigations by the applicant show in this connection that the hollow cylindrical base body preferably has a wall thickness in the range of 4-25 millimeters, preferably 8-20 millimeters. The wall thickness of the medium distribution pipe and its length are preferably matched to one another in such a way that the dimensional stability of the application unit against deflection along the cross machine direction is essentially provided by the medium distribution pipe.

Der hohlzylindrische Grundkörper kann ferner einen Durchmesser im Bereich von 70-200 Millimeter, insbesondere 100-150 Millimeter haben, wodurch in Verbindung mit der gegenüber dem Stand der Technik erhöhten Wandstärke, dessen Dimensionsstabilität gegenüber Durchbiegung in Maschinenquerrichtung deutlich erhöht wird. Hat der Grundkörper keine kreisrunde Querschnittsform, sondern ist dieser bspw. elliptisch ausgebildet, so hat dieser vorzugsweise eine Querschnittsfläche die der bei kreisrunder Querschnittsform im oben angegebenen Durchmesserbereich entspricht.The hollow cylindrical base body can also have a diameter in the range of 70-200 millimeters, in particular 100-150 millimeters, which, in conjunction with the wall thickness which is greater than in the prior art, significantly increases its dimensional stability compared to deflection in the cross machine direction. If the base body does not have a circular cross-sectional shape, but if it is, for example, elliptical, it preferably has a cross-sectional area which corresponds to the circular cross-sectional shape in the diameter range specified above.

Gemäß der Erfindung ist der hohlzylindrische Grundkörper durch mehrere metallische Rohre mit einer ovalen, insbesondere kreisrunden oder elliptischen Querschnittsform gebildet. Hierdurch wird der Grundkörper durch mehrere Norm-Rohre, bspw. aus Edelstahl, bereitgestellt.According to the invention, the hollow cylindrical base body is formed by a plurality of metallic tubes with an oval, in particular circular or elliptical cross-sectional shape. As a result, the base body is provided by several standard tubes, for example made of stainless steel.

Es ist erfindungsgemäß vorgesehen, dass der Grundkörper aus mehreren Rohren geringerer Länge als der Grundkörper gebildet ist, die ihrer Länge nach in Maschinenquerrichtung orientiert hintereinander angeordnet und an ihren zueinander gewandten Stirnseiten miteinander verbunden, insbesondere miteinander verschweißt, sind.It is provided according to the invention that the base body is formed from a plurality of tubes of shorter length than the base body, which are arranged one behind the other with their length oriented in the cross-machine direction and are connected to one another, in particular welded to one another, at their facing end faces.

Zur Bereitstellung einer definierten Strömung im Mediumverteilrohr und zur Reduktion von Ablagerungen ist vorgesehen, dass die radial innen liegende Mantelfläche des hohlzylindrischen Grundkörpers geschliffen und/oder poliert ist. Dabei hat die radial innen liegende Mantelfläche eine Rauigkeit im Bereich von 0,1-3,0 mm Ra, bevorzugt im Bereich von 0,2-1,6 mm Ra, besonders bevorzugt im Bereich von 0,3-0,9 mm Ra.To provide a defined flow in the medium distribution pipe and to reduce deposits, it is provided that the radially inner lateral surface of the hollow cylindrical base body is ground and / or polished. The radially inner lateral surface has a roughness in the range of 0.1-3.0 mm Ra, preferably in the range of 0.2-1.6 mm Ra, particularly preferably in the range of 0.3-0.9 mm Ra .

Wie bereits vorher erwähnt, sind die Abströmkanäle vorzugsweise durch Bohrungen im hohlzylindrischen Grundkörper gebildet. Hierdurch können weiter Fertigungsauswand und Materialkosten gesenkt werden, da die Abströmkanäle nicht durch separate hohlzylindrische Hülsen bereitgestellt werden müssen. Um den Fertigungsaufwand weiter zu reduzieren ist es insbesondere von Vorteil, wenn die Bohrungen in den hohlzylindrischen Grundkörper eingebracht werden, bevor dieser geschliffen und/oder poliert wird. Hierdurch können Grate die beim Bohren entstehen gleich mit dem nachfolgenden Schleifen und/oder Polieren entfernt werden.As already mentioned above, the outflow channels are preferably formed by bores in the hollow cylindrical base body. As a result, manufacturing outlay and material costs can be further reduced, since the outflow channels do not have to be provided by separate hollow-cylindrical sleeves. In order to further reduce the manufacturing outlay, it is particularly advantageous if the bores are made in the hollow cylindrical base body before it is ground and / or polished. This allows burrs that arise during drilling to be removed immediately with the subsequent grinding and / or polishing.

Die Bohrungen haben an der minimalen Querschnittsfläche vorzugsweise einen Durchmesser im Bereich von 4-15 Millimeter.The bores preferably have a diameter in the range of 4-15 millimeters at the minimum cross-sectional area.

Das Mediumverteilrohr wird in der Regel an einer seiner Stirnseiten durch zumindest eine, insbesondere eine Zuströmleitung mit dem flüssigen oder pastösen Medium versorgt. Vorzugsweise ist vorgesehen, dass die zumindest eine Zuströmleitung eine ovale, insbesondere kreisrunde oder elliptische Querschnittsform hat. Vorzugsweise hat die Zuströmleitung insbesondere die gleiche Querschnittsform wie das Mediumverteilrohr. Hierdurch kann der Übergang zwischen Mediumverteilrohr und Zuströmleitung besonders einfach gestaltet werden und weist zudem keine "toten Winkel" auf in denen sich ungewünschte Ablagerungen des Mediums ansammeln können, wie dies bspw. der Fall ist, wenn die sich Querschnittsformen von Zuströmleitung und Mediumverteilrohr voneinander unterscheiden.The medium distribution pipe is usually supplied with the liquid or pasty medium on one of its end faces through at least one, in particular one, inflow line. It is preferably provided that the at least one inflow line has an oval, in particular circular or elliptical cross-sectional shape. The inflow line preferably has, in particular, the same cross-sectional shape as the medium distribution pipe. As a result, the transition between the medium distribution pipe and the inflow line can be made particularly simple and also has no "dead angles" in which undesired deposits of the medium can accumulate, as is the case, for example, when the cross-sectional shapes of the inflow line and medium distribution pipe differ from one another.

Weiter ist es in diesem Zusammenhang insbesondere von Vorteil, wenn die Zuströmleitung am Übergang zum Mediumverteilrohr die gleich große Querschnittsfläche und die gleiche Querschnittsform wie das Mediumverteilrohr hat. Dies ist insbesondere dann möglich, wenn sich die Querschnittsfläche der Zuströmleitung von einer vom Übergang weiter entfernten Stelle zum Übergang zum Mediumverteilrohr hin konisch erweitert oder verjüngt.It is also particularly advantageous in this context if the inflow line at the transition to the medium distribution pipe has the same cross-sectional area and the same cross-sectional shape as the medium distribution pipe. This is possible in particular when the cross-sectional area of the inflow line widens or tapers conically from a point further away from the transition to the transition to the medium distribution pipe.

Um eine in Maschinenquerrichtung gleichmäßige Ausströmung des Mediums durch die Ausströmkanäle zu erreichen ist es insbesondere sinnvoll, wenn die Summe der minimalen Querschnittsflächen der Abströmkanäle, die Wandstärke des Grundkörpers und die Summe der Querschnittsflächen des zumindest einen Zuströmkanals, insbesondere die Querschnittsfläche des stirnseitig eingeführten einen einzigen Zuströmkanals, sowie der Abstand vom in Maschinenquerrichtung ersten zum letzten Abströmkanal derart aufeinander abgestimmt sind, dass der in Maschinenquerrichtung betrachtete Druckabfall des flüssigen oder pastösen Mediums vom ersten zum letzten Abströmkanal geringer ist als der Druckabfall des flüssigen oder pastösen Mediums durch jeden der Abströmkanäle. Vorzugsweise ist hier der Abstand zwischen dem ersten und letzten Abströmkanal in Maschinenquerrichtung gleich der Bahnbreite. Ist bspw. die Bahnbreite 10 000 Millimeter, so ist der Abstand zwischen dem ersten und letzten Abströmkanal in Maschinenquerrichtung auch 10 000 Millimeter.In order to achieve a uniform outflow of the medium through the outflow channels in the cross-machine direction, it is particularly useful if the sum of the minimum cross-sectional areas of the outflow channels, the wall thickness of the base body and the sum of the cross-sectional areas of the at least one inflow channel, in particular the cross-sectional area of the single inflow channel introduced at the front , as well as the distance from the first to the last outflow channel in the cross machine direction are coordinated in such a way that the pressure drop of the liquid or pasty medium from the first to the last outflow channel viewed in the cross machine direction is less than the pressure drop of the liquid or pasty medium through each of the outflow channels. Here, the distance between the first and last discharge duct in the cross machine direction is preferably equal to the web width. If, for example, the web width is 10,000 millimeters, then the distance between the first and last discharge duct in the cross-machine direction is also 10,000 millimeters.

Denkbar ist ferner, dass die Vorrichtung zusätzlich einen Tragbalken umfasst, wobei das Mediumverteilrohr gegenüber dem Tragbalken einen Teil, z.B. zumindest 25%, insbesondere den größeren Teil, d.h. mehr als 50%, der Dimensionsstabilität bereitstellt.It is also conceivable that the device additionally comprises a supporting beam, the medium distribution pipe providing a part, e.g. at least 25%, in particular the larger part, i.e. more than 50%, of the dimensional stability compared to the supporting beam.

Üblicherweise umfasst die Auftragseinheit zusätzlich noch eine Egalisierungseinrichtung, mittel der das auf die Materialbahn oder Walze aufgebrachte flüssige oder pastöse Medium teilweise abgetragen und/oder vergleichmäßigt wird, um schlussendlich auf der Materialbahn, insbesondere Faserstoffbahn, eine aus dem Medium gebildete Schicht mit in Maschinenrichtung und Maschinenquerrichtung gleicher und definierter Dicke bereitzustellen.Usually, the application unit also includes a leveling device, by means of which the liquid or pasty medium applied to the material web or roller is partially removed and / or evened out in order to finally create a layer formed from the medium on the material web, in particular fibrous web, with in the machine direction and cross-machine direction provide the same and defined thickness.

In vorteilhaften Ausführungen beträgt die Länge des Mediumverteilrohrs mehr als 1m, bevorzugt mehr als 2m, besonders bevorzugt mehr als 3m. In einer weiteren besonders bevorzugten Ausführung der Erfindung erstreckt sich das Mediumverteilrohr über die gesamte Maschinenquerrichtung, bzw. die gesamte Breite der Materialbahn.In advantageous embodiments, the length of the medium distribution pipe is more than 1 m, preferably more than 2 m, particularly preferably more than 3 m. In a further particularly preferred embodiment of the invention, the medium distribution pipe extends over the entire cross machine direction or the entire width of the material web.

Die Erfindung wird nachfolgend anhand einer schematischen Zeichnung weiter erläutert. Es zeigt die einzige Figur eine Auftragseinheit 2 einer erfindungsgemäßen Vorrichtung 1 zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn im Querschnitt. Vorliegend erstreckt sich die Maschinenquerrichtung senkrecht zur Zeichnungsebene.The invention is explained further below with reference to a schematic drawing. The single FIGURE shows an application unit 2 of a device 1 according to the invention for the direct or indirect application of a liquid or pasty medium to a moving material web in cross section. In the present case, the cross machine direction extends perpendicular to the plane of the drawing.

Die Auftragseinheit 2 hat ein sich in seiner Länge in Maschinenquerrichtung der Vorrichtung erstreckendes Mediumverteilrohr 3, welches über eine Vielzahl von in Maschinenquerrichtung hintereinander angeordneten Abströmkanälen 4 mit einer sich in ihrer Länge in Maschinenquerrichtung erstreckenden Mediumaustragskammer 5 derart kommuniziert, dass das flüssige oder pastöse Medium zuerst im Mediumverteilrohr 3 in Maschinenquerrichtung verteilt und durch die Abströmkanäle 4 der Mediumaustragskammer 5 zugeführt wird, bevor dieses durch eine Austrittsöffnung 6 der Mediumaustragskammer 5 tritt und vorliegend auf die Walze 7 aufgebracht wird. Die Mediumaustragskammer 5 umfasst vorliegend eine vordere und eine hintere Lippe 8, 9 sowie einen vorderen Kammerboden 10 und einen hinteren Kammerboden 11.The application unit 2 has a medium distribution pipe 3 which extends in its length in the cross machine direction of the device and which communicates via a multiplicity of outflow channels 4 arranged one behind the other in the cross machine direction with a medium discharge chamber 5 which extends in length in the cross machine direction in such a way that the liquid or pasty medium is first distributed in the medium distribution pipe 3 in the cross machine direction and fed through the outflow channels 4 to the medium discharge chamber 5 before it passes through an outlet opening 6 of the medium discharge chamber 5 and is applied to the roller 7 in the present case. In the present case, the medium discharge chamber 5 comprises a front and a rear lip 8, 9 as well as a front chamber floor 10 and a rear chamber floor 11.

Das Mediumverteilrohr 3 ist vorliegend durch einen hohlzylindrischen Grundkörper mit einer kreisrunden Querschnittsform und einer Wandstärke von 8-14 Millimeter gebildet ist.In the present case, the medium distribution pipe 3 is formed by a hollow cylindrical base body with a circular cross-sectional shape and a wall thickness of 8-14 millimeters.

Der hohlzylindrische Grundkörper hat einen Durchmesser im Bereich 120-150 Millimeter und ist durch ein Edelstahlrohr oder mehrere Edelstahlrohre gebildet, wobei das Edelstahlrohr oder die mehreren Edelstahlrohre nahtlos ist bzw. sind. Des Weiteren ist die radial innen liegende Mantelfläche des Edelstahlrohrs oder der Edelstahlrohre auf eine Rauigkeit von 0,4-0,7 µm Ra geschliffen und/oder poliert.The hollow cylindrical base body has a diameter in the range 120-150 millimeters and is formed by a stainless steel pipe or several stainless steel pipes, the stainless steel pipe or the several stainless steel pipes being or are seamless. Furthermore, the radially inner lateral surface of the stainless steel pipe or the stainless steel pipes is ground and / or polished to a roughness of 0.4-0.7 µm Ra.

Wie zu erkennen ist, sind die Abströmkanäle 4 durch Bohrungen im hohlzylindrischen Grundkörper 3 gebildet.As can be seen, the outflow channels 4 are formed by bores in the hollow cylindrical base body 3.

Die Länge des Mediumverteilrohrs 3 in Maschinenquerrichtung beträgt üblicherweise mehr als 1m. Bei modernen Anlagen kann diese Länge auch deutlich darüber liegen, z.B. mehr als 2m, bis hin zu 10m oder mehr. Gerade bei derart großen Längen des Medienverteilrohrs wird der hohlzylindrische Grundkörper stets durch mehrere Rohre, speziell Edelstahlrohre gebildet, welche z.B. durch Schweißen miteinander verbunden sind. Hier ist vorgesehen, dass die gesamte radial innen liegende Mantelfläche des hohlzylindrischen Grundkörpers, insbesondere auch im Bereich der Verbindungsstellen der Rohre eine Rauigkeit im Bereich von 0,1-3,0 mm Ra, insbesondere im Bereich von 0,3-0,9 mm Ra hat.The length of the medium distribution pipe 3 in the cross machine direction is usually more than 1 m. In modern systems, this length can also be significantly longer, e.g. more than 2m, up to 10m or more. Especially with such great lengths of the media distribution pipe, the hollow cylindrical base body is always formed by several pipes, especially stainless steel pipes, which are connected to one another by welding, for example. It is provided here that the entire radially inner lateral surface of the hollow cylindrical base body, in particular also in the area of the connection points of the tubes, has a roughness in the range of 0.1-3.0 mm Ra, in particular in the range of 0.3-0.9 mm Ra has.

Claims (12)

  1. Apparatus for the direct or indirect application of a liquid or pasty medium to a moving material web, in particular a fibrous web, such as a paper, board or tissue web, having at least one application unit by means of which the liquid or pasty medium can be applied to a roll or the material web, and the application unit has a medium distribution tube which extends in its length in the cross-machine direction of the apparatus and communicates via a multiplicity of outflow channels arranged one behind the other in the cross-machine direction with a medium discharge chamber extending in its length in the cross-machine direction of the apparatus in such a way that the liquid or pasty medium is first distributed in the medium distribution tube in the cross-machine direction and is fed through the outflow channels to the medium discharge chamber before it is discharged through an outlet opening of the medium discharge chamber, in that the liquid or pasty medium is first distributed in the medium distribution pipe in the transverse direction of the machine and is fed through the outflow channels to the medium discharge chamber before it passes through an outlet opening of the medium discharge chamber and is applied to the roll or material web, characterized in that the medium distribution pipe is formed by a hollow cylindrical basic body having an oval, in particular circular or elliptical cross-sectional shape and a wall thickness in the range from 3 to 25 millimeters, the base body being formed by a plurality of tubes of shorter length than the base body, which tubes are arranged one behind the other with their length oriented in the transverse direction of the machine and are connected to one another, in particular welded to one another, at their end faces facing one another, and the radially inner circumferential surface of the hollow-cylindrical base body being ground and/or polished so that the radially inner circumferential surface has a roughness in the range of 0.1-3.0 µm Ra, in particular in the range of 0.3-0.9 µm Ra.
  2. Apparatus according to claim 1, characterized in that the hollow cylindrical base body has a wall thickness in the range of 4 - 25 millimeters, preferably 8 - 20 millimeters.
  3. Apparatus according to claim 1 or 2 characterized in that the hollow cylindrical base body has a diameter in the range of 70-200 millimeters, in particular 100-150 millimeters.
  4. Apparatus according to one of claims 1 to 3, characterized in that the hollow cylindrical base body is formed by at least one metallic tube with an oval, in particular circular or elliptical cross-sectional shape.
  5. device according to one of claims 1 to 4, characterized in that the at least one metallic Apparatus is a welded tube or a seamless tube.
  6. Apparatus according to one of claims 1 to 5, characterized in that the outflow channels are formed by bores in the hollow cylindrical base body.
  7. Apparatus according to one of claims 1 to 6, characterized in that the medium distribution pipe is supplied with the liquid or pasty medium at one of its end faces by an inflow line, which has an oval, in particular circular or elliptical cross-sectional shape.
  8. Apparatus according to claim 7, characterized in that the inflow line at the transition has a distance from the medium distribution pipe of the same cross-sectional area and the same cross-sectional shape as the medium distribution pipe, and the cross-sectional area of the inflow line widens or tapers conically, in particular from a point further away from the transition, towards the transition.
  9. Apparatus according to one of claims 1 to 8, characterized in that the sum of the minimum cross-sectional areas of the outflow channels, the wall thickness of the base body and the cross-sectional area of the inflow channel as well as the distance from the first to the last outflow channel in the cross-machine direction are matched to one another in such a way that the pressure drop of the liquid or pasty medium from the first to the last outflow channel, as considered in the cross-machine direction, is lower than the pressure drop of the liquid or pasty medium through each of the outflow channels.
  10. Apparatus according to any one of claims 1 to 9, characterized in that the wall thickness of the medium distribution tube and the length thereof are matched such that the dimensional stability of the applicator unit against deflection along the transverse direction of the machine is substantially provided by the medium distribution tube.
  11. Apparatus according to any one of claims 1 to 10, characterized in that the device additionally comprises a support beam, the medium distribution pipe providing at least 25%, in particular the greater part, i.e. more than 50%, of the dimensional stability relative to the support beam.
  12. Apparatus according to one of claims 1 to 11, characterized in that the application unit additionally comprises an equalizing device for partial removal and/or equalization of the liquid or pasty medium applied to the material web or roll.
EP15753634.3A 2014-08-15 2015-08-04 Coating device Active EP3180475B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014216256 2014-08-15
PCT/EP2015/067917 WO2016023791A1 (en) 2014-08-15 2015-08-04 Coater

Publications (3)

Publication Number Publication Date
EP3180475A1 EP3180475A1 (en) 2017-06-21
EP3180475B1 EP3180475B1 (en) 2018-10-10
EP3180475B2 true EP3180475B2 (en) 2021-11-03

Family

ID=53938309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15753634.3A Active EP3180475B2 (en) 2014-08-15 2015-08-04 Coating device

Country Status (3)

Country Link
EP (1) EP3180475B2 (en)
CN (1) CN107073504A (en)
WO (1) WO2016023791A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012118438A1 (en) † 2011-03-03 2012-09-07 Mattssonföretagen I Uddevalla Ab Method and device for dosing and coating

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521602A (en) 1967-12-18 1970-07-28 Black Clawson Co Fountain coater
SE436620B (en) 1979-12-17 1985-01-14 Kmw Ab FLOOD DISTRIBUTOR FOR A LIQUID MOVING DEVICE
US4534309A (en) 1983-11-17 1985-08-13 Consolidated Papers, Inc. Paper coating apparatus
FI924248A (en) 1991-10-10 1993-04-11 Voith Gmbh J M DELNINGSROER
CA2101358C (en) 1992-09-11 2000-10-24 Wayne A. Damrau Fountain applicator for coating a paper web and method
DE4432178A1 (en) * 1994-09-09 1996-03-14 Voith Gmbh J M Machine for direct or indirect coating of fluid or paste mediums onto running material web
DE19532920A1 (en) 1995-09-06 1997-03-13 Voith Sulzer Papiermasch Gmbh Paper coating machine with simple means for precise breadthways dosing
JP3758098B2 (en) * 1995-10-16 2006-03-22 富士写真フイルム株式会社 Coating method and coating apparatus
DE29520686U1 (en) 1995-12-29 1996-04-04 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Applicator for direct or indirect application of a liquid or pasty medium to a running material web
DE20122834U1 (en) 2001-04-12 2008-03-27 Voith Patent Gmbh applicator
DE10249395A1 (en) 2002-01-29 2003-08-14 Voith Paper Patent Gmbh Machine for the production and / or refinement of a material web and methods relating to such a machine, avoiding contamination or facilitating its removal
DE202006019724U1 (en) * 2006-12-29 2007-03-01 Nordson Corporation, Westlake Device for dispensing especially adhesive onto relatively movable substrate has basic body and/or slotted nozzle arrangement with segments arranged adjacent to one another in direction of longitudinal extent of outlet orifice
DE102008041119A1 (en) * 2008-08-08 2010-02-11 Voith Patent Gmbh Device for direct or indirect application of a liquid or pasty application medium to a movable material web
DE102008054892A1 (en) 2008-12-18 2010-06-24 Voith Patent Gmbh Curtain applicator
DE102009002027A1 (en) * 2009-03-31 2010-10-07 Voith Patent Gmbh Equalizing device
JP2013220385A (en) * 2012-04-17 2013-10-28 Fujifilm Corp Coating apparatus and method of manufacturing coated film

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012118438A1 (en) † 2011-03-03 2012-09-07 Mattssonföretagen I Uddevalla Ab Method and device for dosing and coating

Also Published As

Publication number Publication date
EP3180475A1 (en) 2017-06-21
WO2016023791A1 (en) 2016-02-18
EP3180475B1 (en) 2018-10-10
CN107073504A (en) 2017-08-18

Similar Documents

Publication Publication Date Title
WO2004037537A2 (en) Guiding elements for a printing unit
EP2885457A1 (en) Sealing device, suction roll and method for producing and/or processing a paper, cardboard or tissue web
DE102019105227B4 (en) Scraper with water lubrication
EP2885455B1 (en) Suction roll for a machine for producing and/or processing a paper, cardboard or tissue web
DE102009000371A1 (en) Suction roll comprises adjusted sealing element and horseshoe shaped or U-shaped suction area, where two axially outer format slides are axially adjusted together with adjacent axial inner format limiting element
EP3180475B2 (en) Coating device
EP4121272A1 (en) Stretching device and method for stretching a plastic film in the transport direction thereof
DE2726709C2 (en) Headbox of a paper machine
EP1115950B1 (en) Doctor rod for a coating device
EP1921206B1 (en) Spreading roller
EP2035152A1 (en) Curtain coating device with porous curtain guide structure, curtain guide structure for a curtain coating device, and method for producing the curtain guide structure
DE102016215977A1 (en) Nozzle row arrangement and nozzle field for installation in roller gaps between two strand guide rollers
DE202015001711U1 (en) applicator
DE102011106494A1 (en) Nozzle device, useful in strand guide device that is useful in continuous casting plant for guiding cast strand, comprises nozzle head for atomizing fluid, hydraulic line for supplying fluid to nozzle head, and replaceable tubular insert
EP2240696B1 (en) Inlet connecting piece for an axial-flow compressor
DE19922365B4 (en) Deflection-controllable zone roller to be used in paper machines, in particular multi-zone roller
EP1531046B1 (en) Cylindrical carrier for receiving an exchangeable printing sleeve and method for its manufacturing
EP1587662B1 (en) Take-off unit
WO2020161319A1 (en) Guide roller for guiding a material web through components of a printing machine, printing machine, and method for manufacturing such a guide roller
CH717510A2 (en) Rotor body of a cross jet cleaning nozzle, manufactured by additive manufacturing.
DE102004054997B4 (en) Cylinder of a printing machine with at least one clamping channel
WO2019238484A1 (en) Roller for a machine for producing and/or processing a paper, cardboard, or tissue web, and method for operating the roller
WO2017063949A1 (en) Insertion piece for supporting a roll
DE20023716U1 (en) Doctor dosing assembly, for the dosed coating of a moving paper/cardboard web, has a doctor bed of an elastic material in a holder with structured doctor bed dimensions related to the doctor rod diameter giving reduced wear
DE102007000894A1 (en) Doctor system for rollers in papermaking machines comprises doctor blade mounted on hollow beam filled with lubricant which is sprayed from nozzles which adjust to maintain constant distance from roller as position of blade alters

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170315

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
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

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180403

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM 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

Ref country code: AT

Ref legal event code: REF

Ref document number: 1051395

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181015

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015006368

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20181010

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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: 20181010

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

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: 20190210

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: 20181010

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: 20190110

Ref country code: NO

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: 20190110

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: 20181010

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: 20181010

Ref country code: HR

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: 20181010

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: 20181010

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

Ref country code: AL

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: 20181010

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: 20190111

Ref country code: RS

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: 20181010

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: 20190210

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502015006368

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: ANDRITZ KUESTERS GMBH

Effective date: 20190619

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

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: 20181010

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: 20181010

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: 20181010

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

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: 20181010

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: 20181010

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: 20181010

Ref country code: SM

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: 20181010

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

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: 20181010

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

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

Owner name: VOITH PATENT GMBH

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: 20181010

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

Effective date: 20190804

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: 20190831

Ref country code: LU

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

Effective date: 20190804

Ref country code: MC

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: 20181010

Ref country code: CH

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

Effective date: 20190831

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190831

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 NON-PAYMENT OF DUE FEES

Effective date: 20190804

Ref country code: FR

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

Effective date: 20190831

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

Ref country code: BE

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

Effective date: 20190831

Ref country code: GB

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

Effective date: 20190804

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: 20181010

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: 20181010

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; INVALID AB INITIO

Effective date: 20150804

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20211103

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 502015006368

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

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

Ref country code: MK

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: 20181010

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

Ref country code: FI

Payment date: 20230821

Year of fee payment: 9

Ref country code: AT

Payment date: 20230822

Year of fee payment: 9

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

Ref country code: SE

Payment date: 20230821

Year of fee payment: 9

Ref country code: DE

Payment date: 20230821

Year of fee payment: 9