EP0533035B1 - Dispositif d'enduction d'une bande fibreuse - Google Patents

Dispositif d'enduction d'une bande fibreuse Download PDF

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Publication number
EP0533035B1
EP0533035B1 EP92115379A EP92115379A EP0533035B1 EP 0533035 B1 EP0533035 B1 EP 0533035B1 EP 92115379 A EP92115379 A EP 92115379A EP 92115379 A EP92115379 A EP 92115379A EP 0533035 B1 EP0533035 B1 EP 0533035B1
Authority
EP
European Patent Office
Prior art keywords
roll
nozzle
shell surface
liquid
doctor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92115379A
Other languages
German (de)
English (en)
Other versions
EP0533035A1 (fr
Inventor
Rudolf Beisswanger
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.)
JM Voith GmbH
Original Assignee
JM Voith 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
Application filed by JM Voith GmbH filed Critical JM Voith GmbH
Publication of EP0533035A1 publication Critical patent/EP0533035A1/fr
Application granted granted Critical
Publication of EP0533035B1 publication Critical patent/EP0533035B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05C1/0817—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
    • 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
    • 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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • the liquid to be applied can be, for example, a glue suspension with which the paper web is impregnated; i.e. the glue suspension penetrates more or less completely into the interior of the paper web.
  • the liquid can also be a coating slip; This means a wide variety of pigment suspensions from which a cover layer is formed on the paper web. In both cases, the liquid can be applied to only one side of the paper web or to both sides of the paper web.
  • the invention is based on document 1, in particular on its figure 2.
  • Two applicator rollers are provided which form a nip with one another through which a paper web runs.
  • a nozzle applicator is assigned to each of the application rollers, each applying a coating color film to the surface of the roller concerned.
  • the nozzle applicator has a nozzle with two nozzle lips, one of which carries a roller doctor blade at its free end, which is a rod with a grooved outer surface. A metered application of coating color to the outer surface of the roller in question is thus possible.
  • cleaning device to clean the outer surface of the roller.
  • This cleaning device is located between the point at which the coating color film is passed from the outer surface of the roller to the paper web (delivery position) and the position at which the nozzle application unit applies the coating color film to the outer surface of the roller (feeding position).
  • Such cleaning devices are necessary for various reasons: on the one hand coating paint particles stick to the outer surface of the roller, and on the other hand fibers that are torn out of the paper web as it runs off the outer surface. These deposits represent a stubborn coating that accumulates with each revolution of the roller and leads to non-uniformities in the coating color film and to faults. Therefore it must be reliably removed.
  • the cleaning device comprises a scraper with a scraper blade, which in operation is positioned against the outer surface of the roller, and also a source of liquid.
  • the liquid source has two functions: On the one hand, it serves to spray cleaning liquid onto the outer surface, thus detaching the deposits or at least preparing to detach them. On the other hand, it must be ensured at all times that neither the doctor blade, the downstream doctor blade of the application nozzle is still running dry. These two elements must therefore be lubricated at all times. If this is not the case, the sensitive surface of the roller is damaged by the doctor blade or by the metering doctor.
  • the liquid source already before the start of the coating operation i.e. before loading the nozzle chamber with coating color and thus before applying a coating film on the outer surface of the roller, must release plenty of liquid in order to lubricate both the doctor blade and the doctor blade.
  • the liquid source is generally a spray tube which extends over the outer surface of the roller. The liquid is thus applied to the outer surface in excess before the coating operation begins, remains attached to it and passes through the gap between the doctor blade and the outer surface. Then part of this adhering liquid still travels with the outer surface and reaches the doctor blade in order to lubricate it as well. Another part gets into the coating color channel, which is arranged in front of the nozzle applicator to absorb excess coating color.
  • the metering knife is lubricated by the coating color and therefore no longer requires any special lubricant. Now all you have to do is ensure that the scraper blade receives enough lubricant (generally water). From this point on, the liquid source therefore needs to dispense less liquid. However, throttling the amount of liquid is also necessary, since otherwise there is an undesirable thinning and thus impairment of the coating film.
  • Time of the start of the coating operation ie the application of a coating color film to the outer surface of the roller
  • Timing of throttling of fluid intake Extent of throttling.
  • the invention has for its object to design a device according to the preamble of claim 1 such that the outer surface of the roller is cleaned perfectly, that the doctor blade and the doctor blade never run dry, and that a perfect coating color film of the desired strength and quality is placed on the applicator roll and is finally delivered to the fibrous web.
  • the features (e) and (f) ensure that the happenings in the area of the doctor blade come under control.
  • the width of the gap between the doctor blade and the lateral surface of the roller can be adjusted by means of a corresponding actuating device.
  • the amount of liquid that is dragged through the gap from the lateral surface of the roller can thus be precisely defined.
  • the features (g) and (h) ensure that the path of the liquid comes under control. All features help to prevent the scraper blade and metering knife from running dry and that there is no undesirable dilution of the excess of coating color in the coating color channel. For the coating color surplus there is still the coating color channel, but now there is also a special channel that takes up the cleaning liquid separately. The liquid in the coating color channel can thus be fed unchanged to the nozzle chamber for reuse.
  • the application device shown in FIG. 1 has two application rollers 10, 20, two nozzle application units 31, 41, two nozzle chambers 32, 42, one machine-wide nozzle lip 13, 23 each, one metering doctor 8, 8 and one coating ink channel 39, 49.
  • the two Application rollers 10, 20 rotate in the direction of arrows P.
  • a paper web 9 is passed through the nip formed between the two rollers.
  • the two nozzle chambers 32, 42 receive a coating color stream from pumps, not shown. A part of this stream reaches the nozzle and thus to its outlet, where it is metered by the metering doctor 8 in question and deposited as a film on the lateral surface of the roller 10, 20 in question. A smaller part passes over to the other nozzle lip as excess flow and arrives in the collecting channel 39, 49 in question.
  • the film mentioned is delivered to the paper web 9 in the area of the gap between the two rollers, so that this is provided with a line on both sides.
  • Figure 2 is also shown in principle as Figure 1, namely in a section perpendicular to the axis of the applicator roller 30.
  • the roller 30 is shown much larger in scale than the rollers 10, 20.
  • a roller applicator 51 is assigned to the roller 30. This comprises a nozzle chamber 52 and a nozzle 53.
  • the nozzle 53 has two lips 53.1 and 53.2 parallel to the axis of the application roller 30.
  • One lip 53.1 carries a so-called doctor blade 58. This is mounted in a doctor blade bed.
  • the other nozzle lip 53.2 carries an overflow bar 60.
  • a cleaning device is connected upstream of the nozzle applicator 51. This comprises a spray tube 70, a scraper 80 with a scraper blade 81 and a collecting channel 90 for collecting excess cleaning fluid.
  • FIG. 3 again shows, on an enlarged scale, the roller 30 on which the coating color film is to be applied, the scraper 80 of the cleaning device, the associated scraper blade 81 and a pressing device 83.
  • the pressing device can be pivoted about a pivot axis 84. It also has a blow-out hose 85, on which a strip 86 is formed, which extends over the entire width of the machine.
  • the pressing of the scraper blade 81 can be brought about by two processes: firstly, the entire pressing device 83 can be pivoted about the hinge axis 84 in the direction of the arrow, and secondly the hose 85 can be inflated.
  • the entire device is practically integrated into a single structural unit.
  • the nozzle applicator 51 is firmly connected via its overflow bar 60 to the wall 59.1 of the overflow channel 59.
  • the scraper 80 is also firmly connected to the wall 59.1.
  • a solution would also be conceivable in which the mutually facing walls of the nozzle applicator 51 and the collecting channel 59, namely the walls 52.1 and 59.1, are combined to form a single wall.
  • the doctor blade 58 does not necessarily have to be profiled. It can also have a non-profiled outer surface.

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)

Claims (4)

  1. Dispositif pour appliquer une masse à enduire sur une nappe de fibres ayant les caractéristiques suivantes :
    a) un cylindre applicateur (30) qui reçoit au point d'émission de sa surface, un film de couleur à enduire ayant la largeur de la machine et le fournit en position de sortie à la nappe de bande de fibres (9),
    b) un mécanisme applicateur à buse (31, 41, 51) pour former et fournir le film de couleur à enduire, avec une chambre de buse (52) ayant la largeur de la machine et une buse (53) en aval de celle-ci, cette buse ayant deux lèvres (53.1, 53.2) de la largeur de la machine et dont l'une porte à son extrémité libre une racle de dosage (58) formant avec la surface du cylindre (30) un intervalle de sortie pour le film de couleur à enduire et dont l'autre surface (60) forme avec la surface enveloppe du cylindre (30), un intervalle de débordement pour le courant excédentaire de couleur à enduire,
    c) une goulotte de collecte (59) pour recueillir le courant en excédent,
    d) un dispositif de nettoyage (90) de la surface du cylindre, entre la position d'émission et la position de réception, selon le sens de rotation du cylindre, avec un racloir (80) et en aval de celui-ci une source de liquide (70) pour appliquer du liquide à la surface du cylindre (30),
    dispositif caractérisé en ce que,
    e) la lame de racloir (81) est disposée pour le réglage de l'intervalle de la largeur entre l'arête d'extrémité de la lame (81) et la surface enveloppe du cylindre (30),
    f) une installation pour appliquer la lame (81),
    g) le racloir (80) est précédé en amont par une goulotte de réception de liquide (90),
    h) la lame de racloir (81) forme une partie d'une cloison de guidage pour dévier le liquide raclé vers la goulotte de réception de liquide (90).
  2. Dispositif selon la revendication 1, caractérisé en ce que les deux goulottes de réception (59, 90) sont prévues l'une à côté de l'autre et forment un ensemble constructif.
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que la paroi arrière (52.1) du mécanisme applicateur à buse (51) et la paroi avant (59.1) de la goulotte de réception de couleur à enduire (59) forment une seule paroi qui porte par sa surface enveloppe le cylindre (30) à proximité du longeron de débordement (60).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que la lame de racloir (81) comporte un dispositif applicateur (83) commandé pour appliquer la lame d'un racloir (81) contre la surface du cylindre (30) que lorsque la source de liquide est branchée (tube de pulvérisation (70).
EP92115379A 1991-09-19 1992-09-09 Dispositif d'enduction d'une bande fibreuse Expired - Lifetime EP0533035B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131131A DE4131131C2 (de) 1991-09-19 1991-09-19 Vorrichtung zum Auftragen von Streichfarbe auf eine Faserstoffbahn
DE4131131 1991-09-19

Publications (2)

Publication Number Publication Date
EP0533035A1 EP0533035A1 (fr) 1993-03-24
EP0533035B1 true EP0533035B1 (fr) 1995-03-08

Family

ID=6440939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115379A Expired - Lifetime EP0533035B1 (fr) 1991-09-19 1992-09-09 Dispositif d'enduction d'une bande fibreuse

Country Status (7)

Country Link
US (1) US5328511A (fr)
EP (1) EP0533035B1 (fr)
JP (1) JPH05228412A (fr)
AT (1) ATE119596T1 (fr)
CA (1) CA2078735A1 (fr)
DE (2) DE4131131C2 (fr)
FI (1) FI96339C (fr)

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FI93242C (fi) * 1993-03-25 1995-03-10 Valmet Paper Machinery Inc Menetelmä ja laitteisto päällystysleveyden rajoittamiseksi ja/tai telapäätyjen vaurioitumisen estämiseksi paperin tai vastaavan rainamateriaalin päällystyksessä tai pintaliimauksessa
FI94882C (fi) * 1993-11-18 1995-11-10 Valmet Paper Machinery Inc Telanpuhdistuslaite
DE4402108A1 (de) * 1994-01-26 1994-06-30 Voith Gmbh J M Maschine zum Streichen einer laufenden Bahn, insbesondere einer Papierbahn
DE9409820U1 (de) * 1994-06-17 1994-09-01 Voith Ag J M Vorrichtung zum Auftragen von mindestens einem flüssigen Medium auf eine laufende Materialbahn
US5476683A (en) * 1994-09-12 1995-12-19 Macmillan Bloedel Limited Coater startup
DE4444779B4 (de) * 1994-12-15 2005-08-04 Voith Sulzer Papiermaschinen Gmbh Vorrichtung zum Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
FI98845C (fi) * 1995-09-20 1997-08-25 Valmet Corp Sovitelma vanaisuuden estämiseksi lyhytviipymäapplikointilaitteessa
US5712489A (en) * 1995-11-21 1998-01-27 Macmillan Bloedel Limited Web flutter detection
US6113986A (en) 1996-02-01 2000-09-05 Fort James Company Coated base products, apparatus and process for producing same
FI107278B (fi) * 1996-02-28 2001-06-29 Metso Paper Inc Sovitelma päällystesuuttimen tukkeutumisen estämiseksi
DE19627973A1 (de) * 1996-07-11 1998-01-15 Voith Sulzer Papiermasch Gmbh Reinigungsvorrichtung
US6316060B1 (en) 1996-08-20 2001-11-13 Pacifica Papers Inc. Metering coatings
US5699739A (en) * 1996-10-31 1997-12-23 Macdermid Imaging Technology Assembly and method for reclaiming incompatible resins from printing plates
DE19711545B4 (de) * 1997-03-20 2005-08-04 Heidelberger Druckmaschinen Ag Farbwerk für Rotationsdruckmaschinen
DE19713116A1 (de) * 1997-03-27 1998-10-01 Voith Sulzer Papiermasch Gmbh Verfahren zum Auftragen von flüssigem oder pastösem Medium auf eine Materialbahn
DE19723458A1 (de) 1997-06-04 1998-12-10 Voith Sulzer Papiermasch Gmbh Vorrichtung und Verfahren zum Auftragen eines flüssigen oder pastösen Mediums auf einen sich vorbeibewegenden Untergrund
DE29714193U1 (de) * 1997-08-08 1997-10-16 Voith Sulzer Papiermasch Gmbh Vorrichtung zur Beschichtung einer laufenden Warenbahn
DE19958109A1 (de) * 1999-12-02 2001-06-07 Voith Paper Patent Gmbh Vorrichtung zum indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
US7748392B2 (en) * 2004-02-17 2010-07-06 Appleton Papers Inc. Edge cleaner device for coating process
FI118305B (fi) * 2006-03-24 2007-09-28 Metso Paper Inc Menetelmä ja sovitelma päällystemäärän hallitsemiseksi kuiturainan päällystyksessä
US7823530B2 (en) * 2007-12-27 2010-11-02 Chung Yuan Christian University Adjustable film applicator
DE102009026486A1 (de) 2009-05-26 2010-12-02 Voith Patent Gmbh Beschichtungsvorrichtung
ITVI20110217A1 (it) * 2011-08-02 2013-02-03 Ge Ma Ta Spa Macchina spalmatrice a rullo per la rifinizione di pelli e simili.
TW201501950A (zh) * 2013-07-02 2015-01-16 Microcosm Technology Co Ltd 刮塗設備
EP3842591A1 (fr) 2019-12-23 2021-06-30 Andritz Küsters GmbH Dispositif d'application d'un milieu d'application
CN112892989B (zh) * 2021-01-20 2022-03-29 福建友谊胶粘带集团有限公司 一种不干胶生产用自动控制防止胶液残留的上胶机
DE102021121584A1 (de) * 2021-08-19 2023-02-23 Wakol Gmbh Verfahren zur Entfernung von Klebstoffresten von einem Klebstoffauftragsmittel
US20230129901A1 (en) * 2021-10-21 2023-04-27 Gerhard Designing & Manufacturing Inc. Excess coating removal device for can coating machines
EP4283039A1 (fr) 2022-05-24 2023-11-29 Andritz Küsters GmbH Dispositif de lissage et d'application d'un milieu d'application
CN115502027B (zh) * 2022-10-29 2024-01-23 英卯(上海)机械制造有限公司 涂胶设备

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Also Published As

Publication number Publication date
DE59201594D1 (de) 1995-04-13
CA2078735A1 (fr) 1993-03-20
FI924206A0 (fi) 1992-09-18
EP0533035A1 (fr) 1993-03-24
DE4131131C2 (de) 1994-07-21
FI96339B (fi) 1996-02-29
FI924206A (fi) 1993-03-20
ATE119596T1 (de) 1995-03-15
US5328511A (en) 1994-07-12
JPH05228412A (ja) 1993-09-07
FI96339C (fi) 1996-06-10
DE4131131A1 (de) 1993-03-25

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