EP0556551B1 - Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier - Google Patents

Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier Download PDF

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Publication number
EP0556551B1
EP0556551B1 EP93100309A EP93100309A EP0556551B1 EP 0556551 B1 EP0556551 B1 EP 0556551B1 EP 93100309 A EP93100309 A EP 93100309A EP 93100309 A EP93100309 A EP 93100309A EP 0556551 B1 EP0556551 B1 EP 0556551B1
Authority
EP
European Patent Office
Prior art keywords
roller
doctor
paper web
blade
surplus
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
EP93100309A
Other languages
German (de)
English (en)
Other versions
EP0556551A1 (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 EP0556551A1 publication Critical patent/EP0556551A1/fr
Application granted granted Critical
Publication of EP0556551B1 publication Critical patent/EP0556551B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • 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
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/40—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper only one side of the paper being in contact with the material
    • 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
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/34—Knife or blade type coaters

Definitions

  • the invention relates to an applicator for applying coating color to a paper web, according to the preamble of claim 1, in particular roller applicator.
  • GB-A-2 178 677 shows and describes an application work for applying coating color on a paper web.
  • This device works with an application roller and a counter roller assigned to it.
  • An inlet gusset and an outlet gusset are formed between the application roller and the counter roller.
  • a deflector device follows the outlet gusset.
  • the squeegee has crucial functions to perform. It should help to create a closed, and relatively thick layer that is completely smooth and free of squeegee strips.
  • Different types of squeegees are conceivable, for example with a stiff blade, with a curved blade (bentblade), which in its free end region clings tangentially to the coated paper web and the squeegee.
  • the apperative effort for such doctor devices is very considerable. Nevertheless, the doctoring devices known to date have not met the required demands on the line quality.
  • the invention has for its object to design a commissioned work according to the preamble of claim 1 such that the line quality is further improved, in particular with regard to smoothness, closedness of the line surface and with regard to the sensitive metering of the line weight, and this with reasonable apperative effort.
  • the roller applicator shown in Figure 1 comprises an applicator roller 1, which rotates in a coating sump 2.
  • the coating sump 2 is located in a trough 3.
  • the trough 3 has a brush-colored inlet 7.
  • the trough wall is designed as a guide wall 8. It ends with an overflow edge 9 ("first overflow edge"). At this point, an overflow channel 10 is connected for a first overflow stream.
  • a guide body 20 adjoins the guide wall 8 after the overflow edge 9. This extends to the inlet gusset. It forms a flow channel 21 with the lateral surface of the application roller 1. At its downstream end it forms a second overflow edge 22 for a second overflow stream.
  • the guide body 20 has a discharge channel 23. This is used to derive a second overflow current. This current arises from the fact that excess coating color passes over the overflow edge 22 and - through the discharge channel 23 - flows in the flow channel 21 against the direction of flow.
  • the guide body 20 also has a throttle point 24, which can serve as an overflow edge and then forms the third overflow edge. It also carries an air scraper 25.
  • the flow channel 23 is provided with a valve 26 at its downstream end.
  • the three overflow flows which overflow at the overflow edges 9, 22 and 24, all open into a single collecting channel, namely the overflow channel 10.
  • the coated paper web 5 After passing through the order zone, the coated paper web 5 gets into the outlet gusset. There it runs past a leveling rod 30 and finally a doctor blade 31. This area is of primary importance for the present invention.
  • the leveling rod 30 is part of a deflector 40.
  • This deflector has a first guide surface 41 for deriving a first excess of coating color 42 from the outlet gusset, and also a second guide surface 43 for the doctor blade excess 46 which is produced on the doctor blade 31.
  • the two guide surfaces 41, 43 are brought together in an end edge 44, which in the present case tapers and where the two excess flows 42, 46 meet.
  • the first guide surface 41 is rigidly concave, the second guide surface 43 is somewhat less strong.
  • the deflector 40 is fastened to the fixed environment by means of brackets 45.
  • the brackets 45 consist of relatively thin plates, which - distributed over the width of the machine - are arranged side by side, leaving gaps.
  • the leveling rod 30 can be adjusted more or less strongly against the coated paper web 5 by means of an inflatable rubber tube 47.
  • the deflector 40 is suspended from a joint 48 so that it can pivot in the direction of the arrow 49. It can be locked in various angular positions.
  • FIG. 2 shows a roller applicator according to the prior art.
  • the basic elements are also present here, namely the application roller 1, the counter roller 4, the trough 3, etc.
  • the deflector designed according to the invention is missing.
  • the two doctor blades ie the pre-doctor blade 30 as well as the last doctor blade 31, can be designed in different ways. For example, they can be designed as a blade, as a doctor blade or as a smooth rod.

Claims (4)

  1. Poste d'enduction pour l'application d'une couleur d'enduction sur une bande de papier, notamment poste d'enduction à rouleaux, comportant les particularités suivantes :
    1.1 un dispositif d'enduction, par exemple un rouleau d'enduction ou une buse d'enduction,
    1.2 un contre-rouleau, autour duquel la bande de papier passe,
    1.3 un coin d'entrée, formé entre le contre-rouleau et le dispositif d'enduction, et un coin de sortie,
    1.4 une racle, qui est disposée en aval du coin de sortie et qui sépare de la bande de papier, par raclage, l'excès de couleur d'enduction (excès de racle),
    1.5 entre le dispositif d'enduction et la racle (31), il est prévu un dispositif déflecteur (40),
    1.6 le dispositif déflecteur comporte une première surface directrice (41), servant à écarter du coin de sortie un premier excès de couleur d'enduction (42), et une seconde surface directrice (43) pour l'excès de racle (44),
    1.7 le dispositif déflecteur (40) comprend une pré-racle (30) (barre d'égalisation), qui est agencée de façon à pouvoir être appliquée sous pression sur la bande de papier (5) enduite,
    caractérisé en ce que :
    1.8 le dispositif déflecteur (40) comprend un corps (51) qui a, en coupe transversale, la forme d'une aile porteuse,
    1.9 une première zone d'extrémité (52) du corps (51) est disposée près du contre-rouleau (4) et s'étend d'une manière pratiquement tangentielle vis-à-vis de la surface cylindrique de ce contre-rouleau, tandis que l'autre zone d'extrémité (44) est plus éloignée du contre-rouleau (4),
    1.10 le corps (51) est - vu suivant la direction de déplacement du contre-rouleau (4) - disposé en aval de la pré-racle (30).
  2. Poste d'enduction selon la revendication 1, caractérisé en ce que les deux surfaces directrices (41, 43) se rejoignent suivant une arête d'extrémité (44) à l'endroit de laquelle les deux courants d'excès (42, 44) se rencontrent.
  3. Poste d'enduction selon l'une des revendications 1 et 2, caractérisé en ce que le pré-racle (30) est agencé de façon à pouvoir être appliqué sous pression sur la bande de papier (5) au moyen d'un sac gonflable.
  4. Poste d'enduction selon l'une des revendications 1 à 3, caractérisé par les particularités suivantes :
    4.1 il est prévu une gouttière réceptrice (61) pour l'excès de racle,
    4.2 il est prévu une tôle directrice (62) qui sert à écarter l'excès de racle,
    4.3 la tôle directrice (62) est agencée de façon à pouvoir basculer dans deux positions autour d'un axe de basculement (63) parallèle à l'axe, au-dessus de la gouttière réceptrice (61), de façon à envoyer l'excès de racle dans le bac (3) dans la première position et dans la gouttière réceptrice (61) dans la seconde position.
EP93100309A 1992-02-21 1993-01-12 Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier Expired - Lifetime EP0556551B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4205314 1992-02-21
DE4205314 1992-02-21

Publications (2)

Publication Number Publication Date
EP0556551A1 EP0556551A1 (fr) 1993-08-25
EP0556551B1 true EP0556551B1 (fr) 1996-10-23

Family

ID=6452270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100309A Expired - Lifetime EP0556551B1 (fr) 1992-02-21 1993-01-12 Dispositif à rouleaux pour l'application d'une couleur d'enduction sur une bande de papier

Country Status (7)

Country Link
US (1) US5474608A (fr)
EP (1) EP0556551B1 (fr)
JP (1) JPH067729A (fr)
AT (1) ATE144567T1 (fr)
CA (1) CA2089919A1 (fr)
DE (1) DE59304229D1 (fr)
FI (1) FI930757A (fr)

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US4955770A (en) * 1988-08-31 1990-09-11 Kitamura Machinery Co., Ltd. Bed for a machine tool
DE19600046C2 (de) * 1996-01-02 1998-01-29 Voith Sulzer Papiermasch Gmbh Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19702605A1 (de) * 1997-01-24 1998-07-30 Voith Sulzer Papiermasch Gmbh Vorrichtung und Verfahren zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE10131982A1 (de) * 2001-07-02 2003-01-16 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Entgasen von Suspension, insbesondere Faserstoffsuspension
US6582769B2 (en) 2001-11-28 2003-06-24 Meadwestvaco Corporation Method for conditioning a metering blade
US7340489B2 (en) * 2002-04-10 2008-03-04 Emc Corporation Virtual storage devices
US8092910B2 (en) 2005-02-16 2012-01-10 Dow Corning Toray Co., Ltd. Reinforced silicone resin film and method of preparing same
ATE551398T1 (de) 2005-02-16 2012-04-15 Dow Corning Verstärkte silikonharzfolie und herstellungsverfahren dafür
CN101238181B (zh) 2005-08-04 2011-10-05 陶氏康宁公司 增强的有机硅树脂膜及其制备方法
JP5362363B2 (ja) 2005-12-21 2013-12-11 ダウ・コーニング・コーポレイション シリコーン樹脂フィルム、その調製方法、及びナノ材料充填シリコーン組成物
US8084532B2 (en) 2006-01-19 2011-12-27 Dow Corning Corporation Silicone resin film, method of preparing same, and nanomaterial-filled silicone composition
US20090005499A1 (en) * 2006-02-02 2009-01-01 Mark Fisher Silicone Resin Film, Method of Preparing Same, and Nanomaterial-Filled Silicone Composition
US8084097B2 (en) * 2006-02-20 2011-12-27 Dow Corning Corporation Silicone resin film, method of preparing same, and nanomaterial-filled silicone composition
JP5426402B2 (ja) 2007-02-22 2014-02-26 ダウ コーニング コーポレーション 強化シリコーン樹脂フィルム
CN101636270B (zh) 2007-02-22 2012-07-04 道康宁公司 增强硅树脂膜
KR20100014391A (ko) * 2007-02-22 2010-02-10 다우 코닝 코포레이션 강화 실리콘 수지 필름 및 이의 제조방법
KR20100017500A (ko) * 2007-05-01 2010-02-16 다우 코닝 코포레이션 나노물질-충전된 실리콘 조성물 및 강화 실리콘 수지 필름
CN103966904B (zh) * 2014-05-21 2016-08-24 吉翔宝（太仓）离型材料科技发展有限公司 一种组合刮刀涂布头结构
KR101992935B1 (ko) * 2017-09-18 2019-06-25 엠에스웨이 주식회사 웨이브 방식 코팅 장치

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US3195500A (en) * 1962-08-29 1965-07-20 Kimberly Clark Co Abrasive work back-up to recondition doctor blade
US4310573A (en) * 1980-07-31 1982-01-12 Consolidated Papers, Inc. Method and apparatus for supplying coating to a coater
US4452833A (en) * 1982-02-08 1984-06-05 Consolidated Papers, Inc. Paper coating method
DE3446525A1 (de) * 1984-01-07 1985-08-01 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum beschichten von ueber eine stuetzwalze laufenden materialbahnen mit regelbarer auftragsstaerke
DE3623402A1 (de) * 1985-07-31 1987-05-21 Jagenberg Ag Verfahren und vorrichtung zum kontinuierlichen aufbringen einer gleichmaessigen beschichtung auf eine ueber eine gegenwalze laufende materialbahn, insbesondere papier- oder kartonbahn
DE3605409C3 (de) * 1986-02-20 1996-07-04 Voith Gmbh J M Einrichtung zur Beschichtung laufender Warenbahnen
DE3916620A1 (de) * 1989-05-22 1990-12-06 Jagenberg Ag Vorrichtung zum beschichten einer um eine gegenwalze gefuehrten materialbahn
DE3934418A1 (de) * 1989-10-14 1991-04-18 Voith Gmbh J M Rakel

Also Published As

Publication number Publication date
FI930757A0 (fi) 1993-02-19
FI930757A (fi) 1993-08-22
US5474608A (en) 1995-12-12
CA2089919A1 (fr) 1993-08-22
JPH067729A (ja) 1994-01-18
EP0556551A1 (fr) 1993-08-25
DE59304229D1 (de) 1996-11-28
ATE144567T1 (de) 1996-11-15

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