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DE3703834A1 - ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS - Google Patents

ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS

Info

Publication number
DE3703834A1
DE3703834A1 DE19873703834 DE3703834A DE3703834A1 DE 3703834 A1 DE3703834 A1 DE 3703834A1 DE 19873703834 DE19873703834 DE 19873703834 DE 3703834 A DE3703834 A DE 3703834A DE 3703834 A1 DE3703834 A1 DE 3703834A1
Authority
DE
Germany
Prior art keywords
roller
core
applicator according
scraper applicator
casing
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.)
Withdrawn
Application number
DE19873703834
Other languages
German (de)
Inventor
Herbert Sommer
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.)
Jagenberg AG
Original Assignee
Jagenberg AG
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=6320512&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3703834(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jagenberg AG filed Critical Jagenberg AG
Priority to DE19873703834 priority Critical patent/DE3703834A1/en
Priority to DE8888901583T priority patent/DE3860821D1/en
Priority to PCT/EP1988/000087 priority patent/WO1988005698A1/en
Priority to EP88901583A priority patent/EP0301061B1/en
Priority to AT88901583T priority patent/ATE57480T1/en
Publication of DE3703834A1 publication Critical patent/DE3703834A1/en
Priority to FI884637A priority patent/FI884637A/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • B05C1/0817—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 removing partially liquid or other fluent material from the roller, e.g. scrapers
    • 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
    • B05C1/083—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 being passed between the coating roller and one or more backing rollers
    • 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
    • D21H23/58—Details thereof, e.g. surface characteristics, peripheral speed
    • D21H23/60—Details thereof, e.g. surface characteristics, peripheral speed the material on the applicator roll being subjected to a particular treatment before applying to the paper
    • 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

Landscapes

  • Coating Apparatus (AREA)

Abstract

An applicator with a rolling scraper for directly or indirectly applying fluid coatings (3) on webs of material (2) has a scraping bar (5) rotatably mounted in a support (9) and lying with a variable pressure on a web of material conveyed around a counter-roller (1) or on a web-guiding roller. The scraping bar (5) is composed of a core (6) with a high modulus of elasticity and of an envelope (7) with a low modulus of elasticity, in order to generate uniform coating films from the most different materials with different coating thicknesses.

Description

Die Erfindung betrifft ein Rollschaberauftragwerk zum direk­ ten oder indirekten Auftragen von Beschichtungen auf Mate­ rialbahnen mit einer in einem Halter drehbar gelagerten, auf der Materialbahn oder auf einer die Materialbahn führen­ den Walze aufliegenden Rakelstange.The invention relates to a scraper applicator for direct or indirect application of coatings to mate Rialbahnen with a rotatably mounted in a holder, lead on the material web or on a material web the doctor bar lying on the roller.

Derartige Rollschaberauftragwerke dienen dazu, Vor- und Deckstriche direkt oder indirekt auf Karton und Papier aufzutragen. Auch andere nicht pigmentierte Auftragmedien, beispielsweise zum Oberflächenleimen, zum Beschichten oder Vorbehandeln technischer Papiere und Folie kommen in Frage. Abhängig von der Laufgeschwindigkeit der Materialbahn, ih­ ren Materialeigenschaften sowie der Zusammensetzung und dem rheologischen Verhalten der Auftragmedien strebt man Trockenauftraggewichte von 0,5 bis 20 g/m2 bei möglichst glatter Oberfläche, d.h. bei gutem Querprofil ohne Streifen­ bildung an.Roller scraper applicators of this type are used to apply primers and top coats directly or indirectly to cardboard and paper. Other non-pigmented application media, for example for surface gluing, for coating or pretreating technical papers and films, are also suitable. Depending on the running speed of the material web, its material properties as well as the composition and the rheological behavior of the application media, dry application weights of 0.5 to 20 g / m 2 with the smoothest possible surface, ie with a good cross profile without streaking, are aimed for.

Die Dicke der Beschichtung stellt sich aufgrund eines Kräf­ tegleichgewichts zwischen elastischer Anpressung und dem im keilförmigen Spalt zwischen der Materialbahn oder der die Materialbahn führenden Walze und der Rakelstange entstehen­ den hydrodynamischen Flüssigkeitsdruck des Auftragsmediums ein. Drehbare Rakelstangen aus Stahl-Vollmaterial sind zum dosierten Aufbringen von Pigmentstrichen auf Papier gut geeignet, so daß sich ein gewünschter Strichgewichtsbereich bei gutem Querprofil weitestgehend abdecken läßt.The thickness of the coating is due to a force equilibrium between elastic pressure and the wedge-shaped gap between the material web or the Material web leading roller and the doctor rod arise the hydrodynamic liquid pressure of the application medium a. Rotatable doctor blades made of solid steel are for dosed application of pigment lines on paper well suitable so that there is a desired line weight range can cover as far as possible with a good cross profile.

Demgegenüber sind diese Rakelstangen weniger gut geeignet, wenn ein pigmentiertes Auftragmedium indirekt zunächst auf eine gummierte Walze oder direkt auf eine sehr glatte, geschlossene Warenbahnoberfläche, beispielsweise eine Fo­ lie, aufgetragen werden soll. In contrast, these squeegee bars are less suitable, if a pigmented application medium appears indirectly initially a rubberized roller or directly on a very smooth, closed web surface, for example a Fo lie, should be applied.  

In diesen Fällen ergibt sich häufig ein so niedriger hydro­ dynamischer Flüssigkeitsdruck daß sich der Anpreßdruck nicht so weit herabsetzen läßt wie das erforderlich wäre, ohne daß sich Ungleichmäßigkeiten im Querprofil, d.h. Strei­ fen mit geringerem und höherem Auftrag ergeben.In such cases, the hydro is often so low dynamic fluid pressure that the contact pressure not be reduced as much as it would be required without any irregularities in the cross profile, i.e. Streak result with a lower and higher order.

Der Erfindung liegt die Aufgabe zugrunde, das Rollschaber­ auftragwerk so zu verbessern, daß sich ein weiter Strich­ gewichtsbereich bei gutem Querprofil auf unterschiedlichen Bahnmaterialien und mit den verschiedensten Beschichtungs­ materialien ergibt.The invention has for its object the roller scraper To improve the application so that there is another line weight range with good cross profile on different Web materials and with a wide variety of coatings materials results.

Gelöst wird diese Aufgabe dadurch, daß bei einem Rollscha­ berauftragwerk der eingangs erwähnten Art erfindungsgemäß die Rakelstange aus einem Kern und einer Ummantelung mit unterschiedlich großem Elastizitätsmodul besteht. Auf diese Weise läßt sich die bei einer Rakelstange aus Vollmaterial im Verhältnis zur Anpressung relativ hohe Steifigkeit ver­ ringern, so daß sich die Rakelstange gleichmäßig an die Materialbahn anlegt bzw. Oberfläche einer Gegenwalze aus­ richtet.This problem is solved by the fact that in a roller blind Overloading unit of the type mentioned in the introduction the squeegee rod with a core and a sheathing different modulus of elasticity exists. To this This can be done with a squeegee rod made of solid material relatively high rigidity in relation to the contact pressure wrestle, so that the doctor rod evenly on the Material web creates or surface of a counter roller judges.

Die erfindungsgemäße Rakelstange aus einem Kern und einer Ummantelung mit unterschiedlich großem Elastizitätsmodul be­ ruht auf der Erkenntnis, daß eine Verringerung des Rakel­ stangendurchmessers allein zwar deren Steifigkeit verrin­ gert, jedoch keine Lösung des Problems ergibt, da mit der Verringerung des Rakelstangendurchmessers auch der hydrody­ namische Flüssigkeitsdruck aufgrund der geometrischen Ände­ rung in der Dosierzone, d.h. mit der damit einhergehenden Vergrößerung des Keilwinkels, schneller absinkt, als sich die Steifigkeit der Rakelstange verringert. Umgekehrt führt eine Vergrößerung des Rakelstangendurchmessers zwar zu ei­ ner Erhöhung des hydrodynamischen Flüssigkeitsdrucks in der Dosierzone, jedoch steigt der Flüssigkeitsdruck langsamer an als sich die Steifigkeit der Rakelstange mit zunehmendem Durchmesser vergrößert.The doctor rod according to the invention from a core and one Sheathing with different elastic modulus be rests on the realization that a reduction in the doctor blade rod diameter alone reduce their rigidity device, but does not provide a solution to the problem, since with the Reduction of the doctor rod diameter also the hydrody Named fluid pressure due to the geometric changes tion in the dosing zone, i.e. with the accompanying Increasing the wedge angle, sinking faster than itself the rigidity of the doctor rod is reduced. Conversely leads an increase in the doctor rod diameter to egg  ner increase in hydrodynamic fluid pressure in the Dosing zone, however the liquid pressure rises more slowly than the stiffness of the doctor rod increases with increasing Diameter increased.

Vorzugsweise ist der Elastizitätsmodul der Ummantelung klei­ ner als der des Kerns, was sich vorteilhafterweise dadurch erreichen läßt, daß die Ummantelung aus Kunststoff, bei­ spielsweise PTFE oder PVC, und der Kern aus Stahl besteht. Der Kern nimmt hierbei das in der Rakelstange auftretende Torsionsmoment auf, während die flexible Kunststoffummante­ lung den Außendurchmesser auf den Wert bringt, der für ein optimales Beschichten erforderlich ist.The modulus of elasticity of the sheathing is preferably small ner than that of the core, which is advantageous can achieve that the sheathing made of plastic, at for example PTFE or PVC, and the core is made of steel. The core takes what occurs in the doctor rod Torsional moment while the flexible plastic jacket brings the outer diameter to the value for a optimal coating is required.

Der Durchmesser des Stahlkerns liegt vorzugsweise bei 6­ bis 10 mm und der Außendurchmesser der Kunststoffumman­ telung bei 10 bis 20 mm.The diameter of the steel core is preferably 6 up to 10 mm and the outer diameter of the plastic casing at 10 to 20 mm.

Um ein Versetzen oder Verrutschen des Kunststoffmantels gegenüber dem Stahlkern zu verhindern, kann die Oberfläche des Kerns strukturiert, z.B. unrund und die beispielweise komplementäre Innenfläche der Ummantelung formschlüssig mit der Oberfläche des Kerns verbunden sein.To move or slide the plastic jacket against the steel core can prevent the surface structured of the core, e.g. out of round and the example complementary inner surface of the casing with a positive fit connected to the surface of the core.

Des weiteren kann zusätzlich eine dünnwandige verschleiß­ feste Hülle um die Ummantelung herumgelegt sein, die aus einem etwa 0,3 mm dicken Stahlmantel besteht. Die Rakelstan­ ge ist angetrieben, vorzugsweise gegensinnig zur Material­ bahnbewegung bzw. zur die Materialbahn führenden Walze, und mittels eines Rakelbetts aus einem druckluftbeaufschlagten Schlauch im Halter gelagert, so daß sich der Anpressdruck durch Änderung der Druckluftbeaufschlagung des Schlauchs verändern läßt.Furthermore, thin-walled wear can also occur solid sheath to be wrapped around the shroud that made up an approximately 0.3 mm thick steel jacket. The Rakelstan ge is driven, preferably in opposite directions to the material web movement or to the roll leading the material web, and by means of a doctor bed from a pressurized air Hose stored in the holder so that the contact pressure by changing the compressed air supply to the hose can change.

Die Erfindung wird nachstehend anhand eines in der Zeich­ nung dargestellten Ausführungsbeispiels des näheren erläu­ tert. In der Zeichnung zeigt:The invention is based on a in the drawing tion shown embodiment of the detailed explanation tert. The drawing shows:

Fig. 1 das Rollschaberauftragwerk nur ausschnittweise mit Bezug auf die Erfindung und Fig. 1 the roller scraper applicator only in part with reference to the invention and

Fig. 2 ein Rollschaberauftragwerk zum beiderseitigen in­ direkten Beschichten einer Materialbahn. Fig. 2 is a scraper applicator for both sides in direct coating of a material web.

Um eine Gegenwalze 1, von der nur ein Segment dargestellt ist, läuft eine Materialbahn 2 und wird mit einer Beschich­ tung 3 vorgegebenen Quadratmetergewichts versehen. Um die­ ses Quadratmetergewicht zu erreichen, wird überschüssiges Beschichtungsmaterial mittels einer in einem Halter 4 dreh­ bar gelagerten Rakelstange 5 entfernt.Around a counter roller 1 , of which only one segment is shown, a material web 2 runs and is provided with a coating device 3 given a square meter weight. In order to achieve this square meter weight, excess coating material is removed by means of a doctor bar 5 rotatably mounted in a holder 4 .

Diese Rakelstange 5 ist entgegen der durch einen Pfeil angegebenen Bewegungsrichtung der Materialbahn 2 angetrie­ ben und verdrängt das überflüssige Beschichtungsmaterial nach unten, wo es in eine nicht dargestellte Wanne ab­ tropft. Die Rakelstange 5 besteht aus einem Kern 6 aus Stahl, auf den das Antriebsmoment wirkt. Der Kern 6 ist mit einer Ummantelung 7 aus Kunststoff, beispielsweise PTFE oder PVC versehen und weist zusätzlich eine verschleißfeste Hülle 8 auf, die wiederum aus Stahl besteht. Diese ver­ schleißfeste Hülle 8 ist dann erforderlich, wenn das Be­ schichtungsmaterial und die Materialbahn 2 zu einem erhöh­ ten Abrieb der Rakelstange 5 führen.This squeegee rod 5 is against the direction of movement of the material web 2 indicated by an arrow ben and displaces the unnecessary coating material downwards, where it drips into a tub, not shown. The doctor rod 5 consists of a core 6 made of steel, on which the drive torque acts. The core 6 is provided with a sheath 7 made of plastic, for example PTFE or PVC, and additionally has a wear-resistant sheath 8 , which in turn consists of steel. This wear-resistant cover 8 is required when the coating material and the material web 2 lead to increased wear of the doctor rod 5 .

Die Rakelstange 5 ist in einem Rakelbett 9 gehalten, das aus einem mit Druckluft beaufschlagten Gummischlauch mit einer Hohlkammer 10 besteht. Durch eine Änderung des Luft­ drucks in der Hohlkammer 10 läßt sich der Anpreßdruck der Materialbahn 2 und dem Beschichtungsmaterial anpassen, so daß der Strichauftrag eine einwandfreie Oberfläche aufweist und sich sein Quadratmetergewicht in weiten Grenzen vari­ ieren läßt.The doctor rod 5 is held in a doctor bed 9 , which consists of a compressed air rubber tube with a hollow chamber 10 . By changing the air pressure in the hollow chamber 10 , the contact pressure of the material web 2 and the coating material can be adjusted so that the line application has a perfect surface and its weight per square meter can be varied within wide limits.

Da der Elastizitätsmodul von PTFE ungefähr 400 N/mm2 und der von Stahl etwa 210 000 N/mm2 beträgt, ergibt sich für den Biegewiderstand einer Rakelstange mit 12 mm Durchmesser aus Stahlvollmaterial E×I=2,2×108 N/mm2, während sich der Biegewiderstand für eine erfindungsgemäße Rakelstange mit einem Kerndurchmesser von 8 mm und einem Außendurchmes­ ser von 12 mm, deren Kern aus Stahl und deren Ummantelung aus PTFE besteht, E×I=0,43×108 N/mm2 ergibt. Der Bie­ gewiderstand der erfindungsgemäßen Rakelstange beträgt so­ mit nur etwa ein Fünftel desjenigen einer Rakelstange aus Stahlvollmaterial. Auch wenn zusätzlich noch eine dünnwandi­ ge verschleißfeste Hülle aus Stahl mit einer Wanddicke von 0,3 mm um die Ummantelung aus PTFE herumgelegt ist, erhöht sich der Biegewiderstand mit E×1=0,85×108 N/mm2 nur auf das Doppelte; er liegt immer noch erheblich unter dem Biegewiderstand einer Rakelstange gleichen Durchmessers aus Stahlvollmaterial.Since the modulus of elasticity of PTFE is approximately 400 N / mm 2 and that of steel is approximately 210,000 N / mm 2 , the bending resistance of a doctor rod with a 12 mm diameter made of solid steel material is E × I = 2.2 × 10 8 N / mm 2 , while the bending resistance for a doctor rod according to the invention with a core diameter of 8 mm and an outer diameter of 12 mm, the core of which is made of steel and the sheathing of which is made of PTFE, is E × I = 0.43 × 10 8 N / mm 2 . The bending resistance of the doctor rod according to the invention is thus only about a fifth of that of a doctor rod made of solid steel. Even if a thin-walled, wear-resistant steel sheath with a wall thickness of 0.3 mm is wrapped around the PTFE sheathing, the bending resistance increases only twice with E × 1 = 0.85 × 10 8 N / mm 2 ; it is still considerably below the bending resistance of a doctor rod of the same diameter made of solid steel.

Die Beschichtung 3 läßt sich auch indirekt auftragen. In diesem Fall wird die Materialbahn 2 erst dann an die Walze herangeführt, wenn die Beschichtung 3 in der beschriebenen Weise dosiert auf die Walzenoberfläche statt auf die Ma­ terialbahn aufgetragen ist. Die Beschichtung wird dann von der an die Walze 1 heran- und herumgeführten Materialbahn übernommen.The coating 3 can also be applied indirectly. In this case, the material web 2 is only brought up to the roller when the coating 3 is applied in the manner described to the roller surface instead of to the material web. The coating is then taken over by the web of material which is brought up and around the roller 1 .

Claims (9)

1. Rollschaberauftragwerk zum direkten oder indirekten Auftragen von Beschichtungen auf Materialbahnen mit einer drehbar gelagerten, auf der Materialbahn oder auf einer die Materialbahn führenden Walze aufliegen­ den Rakelstange, dadurch gekennzeichnet, daß die Rakel­ stange (5) aus einem Kern (6) und einer Ummantelung (7) mit unterschiedlichem Elastizitätsmodul besteht.1. Roller scraper applicator for direct or indirect application of coatings on material webs with a rotatably mounted, on the material web or on a roller guiding the material web rest the doctor rod, characterized in that the doctor rod ( 5 ) from a core ( 6 ) and a casing ( 7 ) with different modulus of elasticity. 2. Rollschaberauftragwerk nach Anspruch 1, dadurch gekenn­ zeichnet, daß der Elastizitätsmodul der Ummantelung (7) kleiner als der des Kerns (6) ist.2. Roller scraper applicator according to claim 1, characterized in that the modulus of elasticity of the casing ( 7 ) is smaller than that of the core ( 6 ). 3. Rollschaberauftragwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Ummantelung (7) aus Kunst­ stoff, der Kern (6) aus Stahl besteht.3. Roller scraper applicator according to claim 1 or 2, characterized in that the casing ( 7 ) made of plastic, the core ( 6 ) consists of steel. 4. Rollschaberauftragwerk nach Anspruch 3, dadurch gekenn­ zeichnet, daß der Durchmesser des Stahlkerns (6) 6 bis 10 mm und der Außendurchmesser der Kunststoffum­ mantelung (7) 10 bis 20 mm beträgt. 4. Scraper applicator according to claim 3, characterized in that the diameter of the steel core ( 6 ) 6 to 10 mm and the outer diameter of the plastic sheathing ( 7 ) is 10 to 20 mm. 5. Rollschaberauftragwerk nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Oberfläche des Kerns (6) strukturiert und die Innen­ fläche der Ummantelung (7) formschlüssig mit der Ober­ fläche des Kerns verbunden ist.5. Scraper applicator according to one or more of claims 1 to 4, characterized in that the surface of the core ( 6 ) is structured and the inner surface of the casing ( 7 ) is positively connected to the upper surface of the core. 6. Rollschaberauftragwerk nach einem oder mehreren der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß eine dünnwandige, verschleißfeste Hülle (8) die Ummantelung (7) umgibt.6. Scraper applicator according to one or more of claims 2 to 5, characterized in that a thin-walled, wear-resistant casing ( 8 ) surrounds the casing ( 7 ). 7. Rollschaberauftragwerk nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Rakelstange (5) angetrieben ist.7. Roller scraper applicator according to one or more of claims 1 to 6, characterized in that the doctor rod ( 5 ) is driven. 8. Rollschaberauftragwerk nach Anspruch 7, dadurch gekenn­ zeichnet, daß die Rakelstange (5) gegensinnig zur Ma­ terialbahnbewegung bzw. der die Materialbahn führenden Walze angetrieben ist.8. roller scraper applicator according to claim 7, characterized in that the doctor rod ( 5 ) in opposite directions to the Ma material web movement or the roller guiding the material web is driven. 9. Rollschaberauftragwerk nach einem oder mehreren der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Rakelstange (5) mittels eines Rakelbetts (9) aus einem mit Druckluft beaufschlagten Schlauch im Halter (4) gelagert ist.9. Roller scraper applicator according to one or more of claims 1 to 8, characterized in that the doctor rod ( 5 ) by means of a doctor bed ( 9 ) from a compressed air hose in the holder ( 4 ) is mounted.
DE19873703834 1987-02-07 1987-02-07 ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS Withdrawn DE3703834A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE19873703834 DE3703834A1 (en) 1987-02-07 1987-02-07 ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS
DE8888901583T DE3860821D1 (en) 1987-02-07 1988-02-06 ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS.
PCT/EP1988/000087 WO1988005698A1 (en) 1987-02-07 1988-02-06 Applicator with rolling scraper for applying coatings on webs of material
EP88901583A EP0301061B1 (en) 1987-02-07 1988-02-06 Applicator with rolling scraper for applying coatings on webs of material
AT88901583T ATE57480T1 (en) 1987-02-07 1988-02-06 ROLLER SCRAPER APPLICATOR FOR APPLYING COATINGS TO MATERIAL WEBS.
FI884637A FI884637A (en) 1987-02-07 1988-10-07 RULLSKRAPBESTRYKNINGSMASKIN FOER UTBREDNING AV BESTRYKNINGSMEDEL PAO EN MATERIALBANA.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873703834 DE3703834A1 (en) 1987-02-07 1987-02-07 ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS

Publications (1)

Publication Number Publication Date
DE3703834A1 true DE3703834A1 (en) 1988-08-18

Family

ID=6320512

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19873703834 Withdrawn DE3703834A1 (en) 1987-02-07 1987-02-07 ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS
DE8888901583T Revoked DE3860821D1 (en) 1987-02-07 1988-02-06 ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE8888901583T Revoked DE3860821D1 (en) 1987-02-07 1988-02-06 ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS.

Country Status (4)

Country Link
EP (1) EP0301061B1 (en)
DE (2) DE3703834A1 (en)
FI (1) FI884637A (en)
WO (1) WO1988005698A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937749A1 (en) * 1989-11-14 1991-05-16 Jagenberg Ag Squeegee rod for volumetric dosing of coating material
DE4220603A1 (en) * 1992-06-24 1994-01-13 Voith Gmbh J M Doctor rod
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
EP1234912A2 (en) * 2001-02-13 2002-08-28 Mitsubishi Heavy Industries, Ltd. Coating apparatus and coated-paper manufacturing method
WO2006089751A1 (en) * 2005-02-25 2006-08-31 Kiener Maschinenbau Gmbh Metering device and auxiliary film applicator for a metering device
WO2007027150A1 (en) * 2005-08-30 2007-03-08 Mattssonföretagen I Uddevalla Aktiebolag Device and method for coating
DE10084391B3 (en) * 1999-03-26 2013-02-21 Metso Paper, Inc. Doctor bed and squeegee in a roll doctor coater
CN113106780A (en) * 2021-04-19 2021-07-13 刘小建 Antibacterial kraft paper and preparation method thereof

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FI88421C (en) * 1990-04-19 1993-05-10 Valmet Paper Machinery Inc BESTRYKNINGSANORDNING FOER BESTRYKNINGS AV VALS I EN LIMPRESS, PAPPER ELLER KARTONG
FI91299C (en) * 1991-09-16 1994-06-10 Valmet Paper Machinery Inc Method and coating device for coating roll in an adhesive press, paper or board
FI90268C (en) * 1991-11-06 1994-01-10 Valmet Paper Machinery Inc Method and apparatus for keeping the rod and rod cradle of the rod coater clean and to prevent leakage of lubrication and / or cooling water used
DE4341341C1 (en) * 1993-12-06 1995-03-09 Jagenberg Ag Metering system for devices for coating material webs, in particular paper or board webs
FI104103B1 (en) * 1998-11-09 1999-11-15 Valmet Corp The coating bar
JP5884985B2 (en) * 2012-05-14 2016-03-15 Ｊｆｅスチール株式会社 Painting equipment

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US3931786A (en) * 1974-02-13 1976-01-13 Riegel Textile Corporation Apparatus for coating a web of material with a liquid
DE3210074A1 (en) * 1981-03-20 1982-11-04 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa COATING METHOD AND DEVICE
DE2609983C2 (en) * 1975-03-10 1983-09-29 Wiggins Teape Ltd., London Smoothing roller

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GB837072A (en) * 1957-06-03 1960-06-09 Warren S D Co Improvements relating to the production of coated paper
DE2307404A1 (en) * 1973-02-15 1974-08-22 Jagenberg Werke Ag DEVICE FOR REGULATING THE APPLICATION THICKNESS WHEN COATING MOVING RAILS OF MATERIAL
GB1449993A (en) * 1973-10-01 1976-09-15 American Can Co Method and apparatus for distributing plastics on an irregular wokpiece surface
DE3022955C2 (en) * 1980-06-19 1982-12-16 Jagenberg-Werke AG, 4000 Düsseldorf Device for regulating the application thickness when coating moving material webs
DE3025689A1 (en) * 1980-07-07 1982-01-21 Jagenberg-Werke AG, 4000 Düsseldorf Doctor bar insertion mechanism in elastic bed - has thruster acting against underside of bed below mechanism housing slot

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931786A (en) * 1974-02-13 1976-01-13 Riegel Textile Corporation Apparatus for coating a web of material with a liquid
DE2609983C2 (en) * 1975-03-10 1983-09-29 Wiggins Teape Ltd., London Smoothing roller
DE3210074A1 (en) * 1981-03-20 1982-11-04 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa COATING METHOD AND DEVICE

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3937749A1 (en) * 1989-11-14 1991-05-16 Jagenberg Ag Squeegee rod for volumetric dosing of coating material
DE4220603A1 (en) * 1992-06-24 1994-01-13 Voith Gmbh J M Doctor rod
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
DE10084391B3 (en) * 1999-03-26 2013-02-21 Metso Paper, Inc. Doctor bed and squeegee in a roll doctor coater
EP1234912A2 (en) * 2001-02-13 2002-08-28 Mitsubishi Heavy Industries, Ltd. Coating apparatus and coated-paper manufacturing method
EP1234912A3 (en) * 2001-02-13 2004-01-14 Mitsubishi Heavy Industries, Ltd. Coating apparatus and coated-paper manufacturing method
WO2006089751A1 (en) * 2005-02-25 2006-08-31 Kiener Maschinenbau Gmbh Metering device and auxiliary film applicator for a metering device
WO2007027150A1 (en) * 2005-08-30 2007-03-08 Mattssonföretagen I Uddevalla Aktiebolag Device and method for coating
US8286577B2 (en) 2005-08-30 2012-10-16 Mattssonforetagen I Uddevalla Aktiebolag Device and method for coating
CN113106780A (en) * 2021-04-19 2021-07-13 刘小建 Antibacterial kraft paper and preparation method thereof

Also Published As

Publication number Publication date
EP0301061A1 (en) 1989-02-01
FI884637A0 (en) 1988-10-07
FI884637A (en) 1988-10-07
EP0301061B1 (en) 1990-10-17
WO1988005698A1 (en) 1988-08-11
DE3860821D1 (en) 1990-11-22

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