EP0751256A2 - Doctoring assembly - Google Patents

Doctoring assembly Download PDF

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Publication number
EP0751256A2
EP0751256A2 EP96108388A EP96108388A EP0751256A2 EP 0751256 A2 EP0751256 A2 EP 0751256A2 EP 96108388 A EP96108388 A EP 96108388A EP 96108388 A EP96108388 A EP 96108388A EP 0751256 A2 EP0751256 A2 EP 0751256A2
Authority
EP
European Patent Office
Prior art keywords
doctor
roller
bed
rod
doctor blade
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.)
Granted
Application number
EP96108388A
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German (de)
French (fr)
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EP0751256A3 (en
EP0751256B1 (en
Inventor
Horst Kaipf
Christoph Henninger
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 Sulzer Papiermaschinen GmbH
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Publication date
Application filed by Voith Sulzer Papiermaschinen GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0751256A2 publication Critical patent/EP0751256A2/en
Publication of EP0751256A3 publication Critical patent/EP0751256A3/en
Application granted granted Critical
Publication of EP0751256B1 publication Critical patent/EP0751256B1/en
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
    • 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

Definitions

  • the invention relates to a doctor blade assembly with the features specified in the preamble of claim 1.
  • a roller doctor in a coating machine which is used to coat a running web (e.g. paper web), serves primarily as a metering element.
  • the roller doctor blade is pressed with a precisely adjustable contact pressure against an application roller or directly against the web running over a back-up roller, so that only a part of the previously applied liquid coating composition remains on the application roller or on the web, the excess liquid portion being rejected .
  • the invention has for its object to further develop the known doctor blade assembly in such a way that a rotatable doctor rod, which has a predetermined outer diameter, can be replaced by a doctor rod with a different diameter; such an exchange should be possible as quickly and with as little effort as possible.
  • An important idea of the invention is that after replacing one doctor rod with another with a different diameter, the axis of rotation of the "new" doctor rod is in the same position relative to the supporting beam as the axis of rotation of the previous doctor rod. This gives the advantage that the position of the doctor rod drive remains unchanged.
  • FIGS. 1 and 2 Exemplary embodiments of the invention are shown in the attached schematic cross sections (FIGS. 1 and 2).
  • FIG. 1 shows in full lines a doctor blade assembly with doctor rod 14 with a relatively large doctor rod diameter D.
  • a modified doctor blade assembly (doctor rod 14 ') with a smaller doctor rod diameter d is shown with dash-dotted lines.
  • the two doctor blade assemblies differ in just a few details. In particular, the positions of the axes of rotation of the two doctor blades 14 and 14 ', based on the support body 10, are congruent. Likewise, in both variants, the rear outside 9 of the respective doctor bed 12 is at the same distance from the support body 10.
  • the roller 8 can be an application roller, on which a coating slip film is formed, which the roller transfers to a paper web at a position that is not visible. However, the roller 8 can also pass the paper web to be coated directly past the roller doctor blade assembly.
  • a doctor rod 14 is rotatably mounted in the doctor bed 12 already mentioned.
  • the doctor bed 12 is fastened in the supporting body 10 by means of a baseboard 16, which here has the shape of a blade, and by means of an inflatable clamping hose 18. Deviating from this, a one-piece doctor bed with molded baseboard can also be used. When the clamping hose 18 is relieved of pressure, the doctor bed 12 can be removed from the support body 10 together with the doctor rod 14 and the baseboard 16.
  • a pressure device with an also inflatable pressure hose 20, which is supported in a pressure bar 22. This, in turn, is supported against the supporting body 10 by means of numerous, individually adjustable spindles 24 which are distributed over the web width.
  • This device is used in a known manner to achieve the most uniform possible transverse profile of the thickness of the applied coating.
  • An additional pressure hose 26 can be provided near the upper end of the rear outer side 9 in order to press the flanks of the doctor bed onto the doctor rod (sealing of the lubrication grooves).
  • a doctor rod 14 'with a smaller diameter d is to be used instead of the doctor rod 14 with a diameter D, essentially (except for the doctor rod) it is only necessary to replace the doctor bed 12 with the doctor bed 12'.
  • the two doctor beds 12 and 12 '(apart from the different bearing diameters) differ only in the different upper boundary surfaces indicated at 12 and 12'. Since the distance between the roller 8 and the support body 10 changes when the doctor rod is changed, the format plates 30 generally have to be replaced by those with changed dimensions; or an extension piece 30a is removed from the format label 30. With the storage bar 28, the measures specified in claims 3, 4 or 5 can be taken.
  • doctor bed 12 with the doctor rod 14, the baffle bar 28 and the format plates 30 delimit an application chamber into which a feed channel 32 for the liquid coating composition opens.
  • FIG. 2 the unchanged components are provided with the same reference numbers as in FIG. 1.
  • a doctor bar 14 ′′ with an even smaller diameter is installed here, together with a doctor bed 12 ′′ matched thereto and with an extended skirting board 16 '.
  • the additional pressure hose 26 remains ineffective in this case.
  • a shortened storage strip 28 is also shown.
  • the likewise adapted format plates are omitted in FIG. 2.

Landscapes

  • Coating Apparatus (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Gripping On Spindles (AREA)
  • Winding Of Webs (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Paper (AREA)
  • Laminated Bodies (AREA)

Abstract

The doctor roll has a rotating roll (14) in a roll bed (12), both of which extend transversely across the width of the machine. A device (20) bears against the back of the roll bed in order to press the roll against a coating roller (8) or directly against the web of prod. as it passes over a support roll. The doctor roll and the roll bed form part of a modular system such that the roll can be exchanged with another of different dia., and the roll bed can be correspondingly exchanged for another so that the axes of rolls of different dia. take up the same position relative to the carrier beam (10).

Description

Die Erfindung betrifft eine Rollrakel-Baugruppe mit den im Oberbegriff des Anspruches 1 angegebenen Merkmalen. Bekanntlich dient eine Rollrakel in einer Streichmaschine, die zum Beschichten einer laufenden Bahn (z.B. Papierbahn) dient, in erster Linie als Dosierelement. Dabei wird die Rollrakel mit einer genau einstellbaren Anpreßkraft gegen eine Auftragswalze oder unmittelbar gegen die über eine Stützwalze laufende Bahn angedrückt, so daß von der zuvor aufgetragenen flüssigen Beschichtungsmasse nur ein Teil auf der Auftragswalze bzw. auf der Bahn verbleibt, wobei der überschüssige Flüssigkeitsanteil zurückgewiesen wird.The invention relates to a doctor blade assembly with the features specified in the preamble of claim 1. As is known, a roller doctor in a coating machine, which is used to coat a running web (e.g. paper web), serves primarily as a metering element. The roller doctor blade is pressed with a precisely adjustable contact pressure against an application roller or directly against the web running over a back-up roller, so that only a part of the previously applied liquid coating composition remains on the application roller or on the web, the excess liquid portion being rejected .

Eine bekannte Rollrakel-Baugruppe ist beschrieben in DE 43 08 302 A1 (PA 05053).A known roller doctor blade assembly is described in DE 43 08 302 A1 (PA 05053).

Der Erfindung liegt die Aufgabe zugrunde, die bekannte Rollrakel-Baugruppe dahingehend weiterzuentwickeln, daß ein drehbarer Rakelstab, der einen vorgegebenen Außendurchmesser aufweist, ausgetauscht werden kann gegen einen Rakelstab mit einem anderen Durchmesser; ein solcher Austausch soll möglichst rasch und mit möglichst geringem Aufwand möglich sein.The invention has for its object to further develop the known doctor blade assembly in such a way that a rotatable doctor rod, which has a predetermined outer diameter, can be replaced by a doctor rod with a different diameter; such an exchange should be possible as quickly and with as little effort as possible.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruches 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1.

Ein wichtiger Erfindungsgedanke besteht darin, daß nach dem Austausch eines Rakelstabes gegen einen anderen mit abweichendem Durchmesser die Drehachse des "neuen" Rakelstabes sich in der gleichen Position relativ zum Tragbalken befindet wie die Drehachse des bisherigen Rakelstabes. Dadurch gewinnt man den Vorteil, daß die Position des Rakelstab-Antriebes unverändert bleibt.An important idea of the invention is that after replacing one doctor rod with another with a different diameter, the axis of rotation of the "new" doctor rod is in the same position relative to the supporting beam as the axis of rotation of the previous doctor rod. This gives the advantage that the position of the doctor rod drive remains unchanged.

Gemäß Anspruch 2 wird zusätzlich dafür gesorgt, daß auch die Position der Anpreßvorrichtung unverändert bleibt.According to claim 2, it is additionally ensured that the position of the pressing device remains unchanged.

Weitere zweckmäßige Maßnahmen sind in den zusätzlichen Unteransprüchen angegeben.Further appropriate measures are specified in the additional subclaims.

Ausführungsbeispiele der Erfindung sind in den beigefügten schematischen Querschnitten (Figuren 1 und 2) dargestellt.Exemplary embodiments of the invention are shown in the attached schematic cross sections (FIGS. 1 and 2).

Die Figur 1 zeigt mit vollen Linien eine Rollrakel-Baugruppe mit Rakelstab 14 mit einem relativ großen Rakelstab-Durchmesser D. Zusätzlich ist dort mit strichpunktierten Linien eine geänderte Rollrakel-Baugruppe (Rakelstab 14') mit kleinerem Rakelstab-Durchmesser d dargestellt. Wie man sieht unterscheiden sich die beiden Rollrakel-Baugruppen in nur sehr wenigen Details. Insbesondere sind die Positionen der Drehachsen der beiden Rakelstäbe 14 und 14', bezogen auf den Tragkörper 10, deckungsgleich. Ebenso befindet sich in beiden Varianten die rückwärtige Außenseite 9 des jeweiligen Rakelbettes 12 im gleichen Abstand vom Tragkörper 10.FIG. 1 shows in full lines a doctor blade assembly with doctor rod 14 with a relatively large doctor rod diameter D. In addition, a modified doctor blade assembly (doctor rod 14 ') with a smaller doctor rod diameter d is shown with dash-dotted lines. As you can see, the two doctor blade assemblies differ in just a few details. In particular, the positions of the axes of rotation of the two doctor blades 14 and 14 ', based on the support body 10, are congruent. Likewise, in both variants, the rear outside 9 of the respective doctor bed 12 is at the same distance from the support body 10.

Eines der wesentlichen Elemente der Rollrakel-Baugruppe ist der schon erwähnte (und nur teilweise sichtbare) Tragkörper 10, der sich quer durch die Maschine erstreckt. Er ist in bekannter Weise relativ zu der Walze 8 verschwenkbar. Die Walze 8 kann eine Auftragswalze sein, auf der ein Streichmassefilm gebildet wird, den die Walze an einer nicht sichtbaren Stelle auf eine Papierbahn überträgt. Die Walze 8 kann jedoch auch die zu beschichtende Papierbahn unmittelbar an der Rollrakel-Baugruppe vorbeiführen. In dem schon erwähnten Rakelbett 12 ist ein Rakelstab 14 drehbar gelagert. Das Rakelbett 12 ist mittels einer Fußleiste 16, welche hier die Form einer Klinge aufweist, und mittels eines aufblasbaren Klemmschlauches 18 im Tragkörper 10 befestigt. Abweichend hiervon kann auch ein einteiliges Rakelbett mit angeformter Fußleiste verwendet werden. Bei Druckentlastung des Klemmschlauches 18 kann das Rakelbett 12 zusammen mit dem Rakelstab 14 und der Fußleiste 16 aus dem Tragkörper 10 entfernt werden.One of the essential elements of the doctor blade assembly is the already mentioned (and only partially visible) support body 10, which extends across the machine. It can be pivoted relative to the roller 8 in a known manner. The roller 8 can be an application roller, on which a coating slip film is formed, which the roller transfers to a paper web at a position that is not visible. However, the roller 8 can also pass the paper web to be coated directly past the roller doctor blade assembly. A doctor rod 14 is rotatably mounted in the doctor bed 12 already mentioned. The doctor bed 12 is fastened in the supporting body 10 by means of a baseboard 16, which here has the shape of a blade, and by means of an inflatable clamping hose 18. Deviating from this, a one-piece doctor bed with molded baseboard can also be used. When the clamping hose 18 is relieved of pressure, the doctor bed 12 can be removed from the support body 10 together with the doctor rod 14 and the baseboard 16.

Weitere bekannte Elemente sind eine Anpreßvorrichtung mit einem ebenfalls aufblasbaren Druckschlauch 20, der in einer Andrückleiste 22 abgestützt ist. Diese ist ihrerseits mittels zahlreicher über die Bahnbreite verteilt angeordneten und einzeln verstellbaren Spindeln 24 gegen den Tragkörper 10 abgestützt. Diese Einrichtung dient in bekannter Weise zum Erzielen eines möglichst gleichmäßigen Querprofils der Dicke der aufgetragenen Beschichtung.Further known elements are a pressure device with an also inflatable pressure hose 20, which is supported in a pressure bar 22. This, in turn, is supported against the supporting body 10 by means of numerous, individually adjustable spindles 24 which are distributed over the web width. This device is used in a known manner to achieve the most uniform possible transverse profile of the thickness of the applied coating.

Nahe dem oberen Ende der rückwärtigen Außenseite 9 kann ein zusätzlicher Druckschlauch 26 vorgesehen sein, um die Flanken des Rakelbettes an den Rakelstab zu drücken (Abdichten der Schmiernuten).An additional pressure hose 26 can be provided near the upper end of the rear outer side 9 in order to press the flanks of the doctor bed onto the doctor rod (sealing of the lubrication grooves).

Will man beispielsweise anstelle des Rakelstabes 14 mit Durchmesser D einen Rakelstab 14' mit kleineren Durchmesser d einsetzen, so braucht man im wesentlichen (außer dem Rakelstab) nur das Rakelbett 12 gegen das Rakelbett 12' auszutauschen. In der Regel unterscheiden sich die beiden Rakelbetten 12 und 12' (außer durch die unterschiedlichen Lagerdurchmesser) nur durch die unterschiedlichen, bei 12 und 12' angedeuteten oberen Begrenzungsflächen. Da sich bei einem solchen Rakelstabwechsel der Abstand zwischen der Walze 8 und dem Tragkörper 10 ändert, müssen in der Regel auch die Formatschilde 30 durch solche mit geänderten Abmessungen ausgetauscht werden; oder man entfernt vom Formatschild 30 ein Verlängerungsstück 30a. Bei der Stauleiste 28 können wahlweise die in den Ansprüchen 3, 4 oder 5 angegebenen Maßnahmen getroffen werden.If, for example, a doctor rod 14 'with a smaller diameter d is to be used instead of the doctor rod 14 with a diameter D, essentially (except for the doctor rod) it is only necessary to replace the doctor bed 12 with the doctor bed 12'. As a rule, the two doctor beds 12 and 12 '(apart from the different bearing diameters) differ only in the different upper boundary surfaces indicated at 12 and 12'. Since the distance between the roller 8 and the support body 10 changes when the doctor rod is changed, the format plates 30 generally have to be replaced by those with changed dimensions; or an extension piece 30a is removed from the format label 30. With the storage bar 28, the measures specified in claims 3, 4 or 5 can be taken.

Es sei noch erwähnt, daß das Rakelbett 12 mit dem Rakelstab 14, die Stauleiste 28 und die Formatschilde 30 eine Auftragskammer begrenzen, in welche ein Zuführkanal 32 für die flüssige Beschichtungsmasse einmündet.It should also be mentioned that the doctor bed 12 with the doctor rod 14, the baffle bar 28 and the format plates 30 delimit an application chamber into which a feed channel 32 for the liquid coating composition opens.

In Figur 2 sind die unveränderten Bauelemente mit den gleichen Bezugszahlen versehen wie in Figur 1. Es ist hier ein Rakelstab 14'' mit noch weiter verkleinertem Durchmesser eingebaut, zusammen mit einem daran angepaßten Rakelbett 12'' und mit einer verlängerten Fußleiste 16'. Der zusätzliche Druckschlauch 26 bleibt in diesem Fall wirkungslos. Dargestellt ist noch eine verkürzte Stauleiste 28. Die ebenfalls angepaßten Formatschilde sind in Figur 2 weggelassen.In FIG. 2, the unchanged components are provided with the same reference numbers as in FIG. 1. A doctor bar 14 ″ with an even smaller diameter is installed here, together with a doctor bed 12 ″ matched thereto and with an extended skirting board 16 '. The additional pressure hose 26 remains ineffective in this case. A shortened storage strip 28 is also shown. The likewise adapted format plates are omitted in FIG. 2.

Claims (6)

Rollrakel-Baugruppe als Dosierelement für eine Streichmaschine, die zum Beschichten einer laufenden Bahn (z.B. Papierbahn) dient, mit den folgenden Merkmalen: a) ein sich quer über die Bahnbreite erstreckender drehbarer Rakelstab (14) ist in einem Rakelbett (12) gelagert, das sich ebenfalls quer über die Bahnbreite erstreckt; b) das Rakelbett (12) hat eine flexible Fußleiste (16), mit der es in einen Tragbalken (10) einspannbar ist; c) an der rückwärtigen Außenseite (9) des Rakelbetts (12) greift eine Anpreßvorrichtung (20) an, die den im Rakelbett gelagerten Rakelstab (12) an ein Auftragselement (z.B. Auftragswalze 8) oder an die zu beschichtende und über ein Stützelement (z. B. Stützwalze) laufende Bahn andrückt; gekennzeichnet durch die folgenden weiteren Merkmale: d) der Rakelstab (14; 14'; 14'') und das Rakelbett (12; 12'; 12'') sind Teil eines Baukastensystems, e) so daß der Rakelstab gegen einen anderen mit abweichendem Außendurchmesser austauschbar ist f) und daß dementsprechend das Rakelbett gegen ein anderes mit abweichendem Lagerdurchmesser austauschbar ist, g) wobei die unterschiedlichen Rakelbetten derart aufeinander abgestimmt sind, daß die Drehachsen der verschiedenen Rakelstäbe (14; 14'; 14'') die gleiche Position relativ zum Tragbalken (10) einnehmen. Roller doctor blade assembly as a metering element for a coating machine, which is used to coat a running web (eg paper web), with the following features: a) a rotatable doctor rod (14) extending across the web width is mounted in a doctor bed (12) which also extends across the web width; b) the doctor bed (12) has a flexible baseboard (16) with which it can be clamped in a support beam (10); c) on the rear outside (9) of the doctor bed (12) engages a pressure device (20), the doctor bar (12) mounted in the doctor bed to an application element (for example application roller 8) or to be coated and via a support element (e.g. B. support roller) presses running web; characterized by the following additional features: d) the doctor rod (14; 14 ';14'') and the doctor bed (12; 12'; 12 '') are part of a modular system, e) so that the doctor rod is interchangeable with another with a different outer diameter f) and accordingly the doctor bed is interchangeable with another with a different bearing diameter, g) the different doctor beds being matched to one another in such a way that the axes of rotation of the different doctor bars (14; 14 ';14'') assume the same position relative to the supporting beam (10). Rollrakel-Baugruppe nach Anspruch 1, dadurch gekennzeichnet, daß auch die rückwärtigen Außenseiten (9) der unterschiedlichen Rakelbetten (12; 12'; 12'') im wesentlichen die gleiche Position relativ zum Tragbalken (10) einnehmen.Roller doctor blade assembly according to Claim 1, characterized in that the rear outer sides (9) of the different doctor blade beds (12; 12 '; 12' ') also assume essentially the same position relative to the supporting beam (10). Rollrakel-Baugruppe nach Anspruch 1 oder 2, mit einer Stauleiste (28), die zusammen mit dem Rakelstab (14) und dem Rakelbett (12) sowie mit dem genannten Auftragselement (8) bzw. dem genannten Stutzelement eine Auftragskammer begrenzt, dadurch gekennzeichnet, daß die Stauleiste (28) gegen eine andere, an einen veränderten Rakelstabdurchmesser angepaßte Stauleiste austauschbar ist.Roller doctor blade assembly according to Claim 1 or 2, with a baffle bar (28) which, together with the doctor blade rod (14) and the doctor blade bed (12) and with said application element (8) or said support element, delimits an application chamber, characterized in that that the baffle bar (28) is interchangeable with another baffle bar adapted to a changed doctor rod diameter. Rollrakel-Baugruppe nach dem Oberbegriff des Anspruches 3, dadurch gekennzeichnet, daß die Stauleiste (28) höhenverstellbar ist, wie an sich bekannt.Roller doctor blade assembly according to the preamble of claim 3, characterized in that the baffle bar (28) is adjustable in height, as is known per se. Rollrakel-Baugruppe nach dem Oberbegriff des Anspruches 4, dadurch gekennzeichnet, daß die Stauleiste, wie an sich bekannt, Überströmöffnungen aufweist und mit einer flexiblen Dichtleiste an der Bahn bzw. an der Walze (8) anliegt.Roller doctor blade assembly according to the preamble of claim 4, characterized in that the baffle bar, as known per se, has overflow openings and rests with a flexible sealing strip on the web or on the roller (8). Rollrakel-Baugruppe mit zwei im Bereich der Bahnränder angeordneten Formatschilden (30), dadurch gekennzeichnet, daß jedes Formatschild (30) gegen ein anderes austauschbar oder durch Anbau bzw. Entfernung eines Verlängerungsstückes (30a) an unterschiedliche Rollstab-Durchmesser anpaßbar ist.Roller doctor blade assembly with two format plates (30) arranged in the region of the web edges, characterized in that each format plate (30) can be exchanged for another one or can be adapted to different roller rod diameters by attaching or removing an extension piece (30a).
EP96108388A 1995-06-30 1996-05-25 Doctoring assembly Expired - Lifetime EP0751256B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29510486U DE29510486U1 (en) 1995-06-30 1995-06-30 Squeegee assembly
DE29510486U 1995-06-30

Publications (3)

Publication Number Publication Date
EP0751256A2 true EP0751256A2 (en) 1997-01-02
EP0751256A3 EP0751256A3 (en) 1997-05-21
EP0751256B1 EP0751256B1 (en) 2002-04-24

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ID=8009869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108388A Expired - Lifetime EP0751256B1 (en) 1995-06-30 1996-05-25 Doctoring assembly

Country Status (6)

Country Link
US (1) US5738726A (en)
EP (1) EP0751256B1 (en)
KR (1) KR970000355A (en)
AT (1) ATE216743T1 (en)
DE (2) DE29510486U1 (en)
ES (1) ES2176375T3 (en)

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DE10331145A1 (en) * 2003-07-09 2005-01-27 Pama Papiermaschinen Gmbh Device for the direct or indirect application of liquid to pasty suspensions on paper or board webs
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DE102004028755A1 (en) * 2004-06-16 2006-01-12 Voith Paper Patent Gmbh applicator
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AR054300A1 (en) * 2004-08-10 2007-06-20 Alza Corp APPARATUS AND MICROPROJECTION SYSTEM WITH INFECTIOUS POTENTIAL ESCASS
DE102005020848A1 (en) * 2005-05-02 2006-11-09 Voith Patent Gmbh doctor bed
DE102005027791A1 (en) * 2005-06-15 2006-12-21 Pama Papiermaschinen Gmbh Device for applying liquid to pasty suspensions on paper or board webs
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CN113152148B (en) * 2021-04-29 2021-11-12 江苏富星纸业有限公司 High-efficient coating unit is used in production of coating white board paper
CN113278434B (en) * 2021-05-20 2022-07-12 太原宇成机械制造有限公司 Coke oven with coke oven web cleaning device

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Also Published As

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ATE216743T1 (en) 2002-05-15
ES2176375T3 (en) 2002-12-01
DE29510486U1 (en) 1995-08-17
US5738726A (en) 1998-04-14
EP0751256A3 (en) 1997-05-21
EP0751256B1 (en) 2002-04-24
KR970000355A (en) 1997-01-21
DE59609116D1 (en) 2002-05-29

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