EP0601168A1 - Doctor bar. - Google Patents

Doctor bar.

Info

Publication number
EP0601168A1
EP0601168A1 EP93914699A EP93914699A EP0601168A1 EP 0601168 A1 EP0601168 A1 EP 0601168A1 EP 93914699 A EP93914699 A EP 93914699A EP 93914699 A EP93914699 A EP 93914699A EP 0601168 A1 EP0601168 A1 EP 0601168A1
Authority
EP
European Patent Office
Prior art keywords
glass
rod according
doctor
carrier
doctor rod
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
EP93914699A
Other languages
German (de)
French (fr)
Other versions
EP0601168B1 (en
Inventor
Dieter Babucke
Martin Kustermann
Friedhelm Ruhl
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 EP0601168A1 publication Critical patent/EP0601168A1/en
Application granted granted Critical
Publication of EP0601168B1 publication Critical patent/EP0601168B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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

Definitions

  • the invention relates to a doctor rod according to the preamble of claim 1.
  • Doctor rods used today which preferably consist of metal, in particular steel, are subject to very high wear, particularly when pigmenting. This results in high operating costs. Many development ideas therefore go in the direction of replacing the usual metal with ceramic (see e.g. DE 38 39 564 AI and DE 38 41 494 AI). Ceramic rods are of course much more durable, but much more expensive, and also cannot be produced with sufficiently good, smooth surfaces. The rough surface that arises during production must either be smoothed out very elaborately by suitable finishing or it must be accepted that when new rods are used, some of the material of the counter surface, e.g. Material web or counter roller is sanded, which is particularly disadvantageous when working directly on a rubberized surface of a counter roller.
  • the task is to create a relatively inexpensive doctor rod with high wear resistance (surface hardness) with a smooth surface.
  • FIG. 1 shows a doctor rod according to the invention in axial section
  • FIG. 2 shows a further variant in axial section
  • FIGS. 3 and 4 embodiments of surfaces of doctor rods according to the invention
  • Figure 6 shows a variant with a profiled support rod and wrapping with a fiber mat
  • FIG. 7 shows a profiled carrier rod with a glass or carbon thread embedded in the grooves.
  • a core 6 made of carbon fibers 13 is provided, which may. or e.g. can be formed into a composite by an epoxy resin.
  • This core 13 can be provided with a glass layer.
  • a very thin glass layer 15 can be applied thereon.
  • the fibers 14 can also be a bundle of carbon fibers or glass fibers held in the plastic composite.
  • a metal carrier can also be provided. The glass is then applied directly to this metal support. Acrylic glass can also be used as glass. You can of course connect the carrier 11 made of metal to a jacket 12 made of glass by suitable methods (see FIG. 2).
  • Adhesion is preferably an option here, but a feather key system is also possible, or the jacket is shrunk onto the core. The core can then absorb the torsional forces from the drive when the doctor rod is to work in a rotating manner.
  • the roughness depth can be very small, it can be less than 3 / um, preferably only 1 / um. If a circumferential winding of a core is provided, as shown in FIG. 1, a 1- to 50-course winding can be applied.
  • the metal core can also consist of a sintered material, and the carrier core can also be made of a plastic.
  • Fig. 3 a profile of the surface of the doctor rod in the axial direction of the same is shown, which is undulating (e.g. sinusoidal).
  • this surface ripple can e.g. also consist of circular arcs with different diameters, the radius always being selected alternately small or large. These radii can preferably be between 0.05 and 2 mm.
  • a glass rod is profiled by pressing, preferably in the plastic state, grinding or milling (see Fig. 3 and 4).
  • a wrapping made of glass threads can also be fused with a glass rod as a carrier using a laser beam.
  • a metal carrier rod 16 for this purpose, a metal carrier rod 16, a glass jacket 17 fastened or directly applied thereon and a glass fiber wrapping 20 are shown in FIG.
  • FIG. 6 shows a support rod 22 which preferably has thread-like circumferential grooves and which is coated on its circumference with a mat made of glass fibers, which are preferably embedded in plastic.
  • the carrier rod can preferably be made of metal, as can the carrier rod 24 in FIG. 7.
  • thread-like circumferential grooves 25 are provided, in which a fiber or a fiber bundle made of glass, carbon or glass fiber or carbon fiber reinforced plastic 26 are fixed.

Landscapes

  • Paper (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Glass Compositions (AREA)

Abstract

A doctor bar, in particular for dosing coating slips on continuous webs of paper or cardboard or rubber coatings on cylinders, is characterized in that at least the superficial area which forms the doctoring or dosing surface is made of glass or carbon fiber or of plastic fiber(s) reinforced by glass or carbon fiber(s).

Description

Rakelstab Doctor rod
Die Erfindung betrifft einen Rakelstab entsprechend dem Oberbegriff des Anspruchs 1. Heute eingesetzte Rakelstäbe, die vorzugsweise aus Metall, insbesondere Stahl, bestehen, unterliegen insbesondere beim Pigmentieren einem sehr hohen Verschleiß. Dies hat hohe Betriebskosten zur Folge. Viele Entwicklungsgedanken gehen daher in die Richtung, das übliche Metall durch Keramik zu ersetzen (siehe z.B. DE 38 39 564 AI und DE 38 41 494 AI) . Stäbe aus Keramik sind natürlich wesentlich haltbarer, aber sehr viel teurer, und auch nicht mit ausreichend guten, glatten Oberflächen herstellbar. Die bei der Herstellung entstehende, rauhe Oberfläche muß entweder sehr aufwendig durch geeignete Nachbearbeitung geglättet werden oder es muß in Kauf genommen werden, daß bei Einsatz neuer Stäbe zunächst etwas vom Material der Gegenfläche, z.B. Warenbahn oder Gegenwalze, abgeschmirgelt wird, was besonders nachteilig im Falle vom Arbeiten direkt auf einer gummierten Oberfläche einer Gegenwalze ist.The invention relates to a doctor rod according to the preamble of claim 1. Doctor rods used today, which preferably consist of metal, in particular steel, are subject to very high wear, particularly when pigmenting. This results in high operating costs. Many development ideas therefore go in the direction of replacing the usual metal with ceramic (see e.g. DE 38 39 564 AI and DE 38 41 494 AI). Ceramic rods are of course much more durable, but much more expensive, and also cannot be produced with sufficiently good, smooth surfaces. The rough surface that arises during production must either be smoothed out very elaborately by suitable finishing or it must be accepted that when new rods are used, some of the material of the counter surface, e.g. Material web or counter roller is sanded, which is particularly disadvantageous when working directly on a rubberized surface of a counter roller.
Die Aufgabe ist es, einen relativ preiswert herzustellenden Rakelstab hoher Verschleiß-Festigkeit (Oberlfächenhärte) mit möglichst glatter Oberfläche zu schaffen.The task is to create a relatively inexpensive doctor rod with high wear resistance (surface hardness) with a smooth surface.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst.This object is achieved by the features of the characterizing part of claim 1.
Hinsichtlich der Festigkeit muß man berücksichtigen, daß heute sehr hochfeste Gläser herstellbar, Glasfaserkabel (Lichtleiter) sehr flexibel und Sicherheitsglasscheiben (Panzerglas) praktisch unzerbrechlich und schlagfest sind. Ausreichende Verschleißfestigkeit ist auch möglich, wie z.B. an kratzfesten Uhrengläsern leicht erkennbar ist. Glas ist insofern günstig, da glatte Oberflächen mit sehr geringer Rauhtiefe vergleichsweise leicht herstellbar sind. Je nach Glasart kann im Strangpreßverfahren theoretisch ein unendlich langer Stab hergestellt werden.With regard to strength, one must take into account that very high-strength glasses can be produced today, glass fiber cables (light guides) are very flexible and safety glass panes (bulletproof glass) are practically unbreakable and impact-resistant. Adequate wear resistance is also possible, as can be easily recognized, for example, from scratch-resistant watch glasses. Glass is cheap in that because smooth surfaces with a very low roughness are comparatively easy to produce. Depending on the type of glass, an infinitely long rod can theoretically be produced using the extrusion process.
Nachfolgend wird die Erfindung anhand der Figuren im einzelnen erläutert; dabei stelltThe invention is explained in detail below with reference to the figures; poses
Figur 1 einen erfindungsgemäßen Rakelstab im Axialschnitt,FIG. 1 shows a doctor rod according to the invention in axial section,
Figur 2 eine weitere Variante im Axialschnitt,FIG. 2 shows a further variant in axial section,
Figur 3 und 4 Ausführungsformen von Oberflächen erfindungsge¬ mäßer Rakelstäbe,FIGS. 3 and 4 embodiments of surfaces of doctor rods according to the invention,
Figur 5 im Axialschnitt einen weiteren Stab als VerbundaufbauFigure 5 in axial section another rod as a composite structure
Figur 6 eine Variante mit profiliertem Trägerstab und Umhüllung mit einer Fasermatte undFigure 6 shows a variant with a profiled support rod and wrapping with a fiber mat and
Figur 7 einen profilierten Trägerstab mit in den Rillen eingebettetem Faden aus Glas oder Kohlenstoff dar.FIG. 7 shows a profiled carrier rod with a glass or carbon thread embedded in the grooves.
Eine günstige Möglichkeit ist es, einen Kern aus überwiegend anderem Material als Glas herzustellen und darauf eine Glasdeckschicht aufzubringen, die die eigentliche Dosier- bzw. Rakelfläche aufweist. In Fig. 1 ist eine Variante dargestellt, bei der ein Kern 6 aus Kohlefasern 13 vorgesehen ist, der u.U. oder z.B. durch ein Epoxiharz zu einem Verbund ausgebildet sein kann. Dieser Kern 13 kann mit einer Glasschicht versehen werden.An inexpensive option is to produce a core from predominantly a different material than glass and to apply a glass cover layer thereon, which has the actual metering or doctor surface. In Fig. 1, a variant is shown in which a core 6 made of carbon fibers 13 is provided, which may. or e.g. can be formed into a composite by an epoxy resin. This core 13 can be provided with a glass layer.
Dargestellt ist hier eine Umwicklung in Umfangsrichtung aus weiteren sehr dünnen Kohlefasern 14. Darauf kann eine sehr dünne Glasschicht 15 aufgetragen sein. Die Fasern 14 können aber auch ein im Kunststoffverbünd gehaltenes Bündel aus Kohlenstoffasern oder Glasfasern sein. Anstelle der Kohlefasern 13 im Kern kann auch ein Metallträger vorgesehen werden. Auf diesen Metallträger wird dann direkt das Glas aufgebracht. Als Glas kommt Acrylglas auch in Frage. Man kann natürlich den Träger 11 aus Metall mit einem Mantel 12 aus Glas durch geeignete Verfahren verbinden (siehe Fig. 2) .Shown here is a wrapping in the circumferential direction from further very thin carbon fibers 14. A very thin glass layer 15 can be applied thereon. However, the fibers 14 can also be a bundle of carbon fibers or glass fibers held in the plastic composite. Instead of the carbon fibers 13 in the core, a metal carrier can also be provided. The glass is then applied directly to this metal support. Acrylic glass can also be used as glass. You can of course connect the carrier 11 made of metal to a jacket 12 made of glass by suitable methods (see FIG. 2).
Vorzugsweise kommt hier eine Verklebung in Frage, jedoch auch ein Paßfedersystem ist möglich, oder es wird der Mantel auf den Kern aufgeschrumpft. Der Kern kann dann die Verwindungskräfte aus dem Antrieb aufnehmen, wenn der Rakelstab umlaufend arbeiten soll.Adhesion is preferably an option here, but a feather key system is also possible, or the jacket is shrunk onto the core. The core can then absorb the torsional forces from the drive when the doctor rod is to work in a rotating manner.
Die Rauhtiefe kann sehr gering ausfallen, sie kann kleiner als 3 /u m, vorzugsweise auch nur 1 /u m, betragen. Wird eine Umfangswicklung eines Kerns vorgesehen, wie in Fig. 1 dargestellt, kann man eine 1- bis 50-gängige Umwicklung aufbringen.The roughness depth can be very small, it can be less than 3 / um, preferably only 1 / um. If a circumferential winding of a core is provided, as shown in FIG. 1, a 1- to 50-course winding can be applied.
Der Metallkern kann auch aus einem Sinterwerkstoff bestehen, und der Trägerkern kann auch aus einem Kunststoff hergestellt sein.The metal core can also consist of a sintered material, and the carrier core can also be made of a plastic.
In Fig. 3 ist ein Profil der Oberfläche des Rakelstabes in Achsrichtung desselben dargestellt, das wellenförmig (z.B. sinuswellenförmig) verläuft.In Fig. 3 a profile of the surface of the doctor rod in the axial direction of the same is shown, which is undulating (e.g. sinusoidal).
Nach Fig. 4 kann diese Oberflächenwelligkeit aber z.B. auch aus aneinandergesetzten Kreisbögen mit verschiedenen Durchmessern bestehen, wobei der Radius immer abwechselnd klein oder groß gewählt ist. Diese Radien können vorzugsweise zwischen 0,05 und 2 mm betragen.According to Fig. 4, this surface ripple can e.g. also consist of circular arcs with different diameters, the radius always being selected alternately small or large. These radii can preferably be between 0.05 and 2 mm.
Die Herstellung des Rakelstabes wäre günstig, auch im Fall mit Kohlefaserkern, im Strangpreßverfahren möglich. Es kann auch günstig sein, daß ein Glasstab im wesentlichen in Umfangsrich- tung durch Eindrücken, vorzugsweise im plastischen Zustand, Einschleifen oder Einfräsen profiliert ist (siehe Fig. 3 und 4) . Eine Umwicklung aus Glasfäden kann auch mit einem Glasstab als Träger durch Laserstrahl verschmolzen werden.The production of the doctor rod would be cheap, even in the case with carbon fiber core, in the extrusion process. It may also be favorable for a glass rod to be essentially circumferential. is profiled by pressing, preferably in the plastic state, grinding or milling (see Fig. 3 and 4). A wrapping made of glass threads can also be fused with a glass rod as a carrier using a laser beam.
Dazu ist in Bild 5 ein Metallträgerstab 16, ein darauf befestigter oder direkt aufgebrachter Glasmantel 17 und eine Glasfaserumwicklung 20 dargestellt.For this purpose, a metal carrier rod 16, a glass jacket 17 fastened or directly applied thereon and a glass fiber wrapping 20 are shown in FIG.
In Fig. 6 ist ein Trägerstab 22 dargestellt, der vorzugsweise gewindeähnliche Umfangsrillen aufweist und welcher an seinem Umfang mit einer Matte aus Glasfasern, die vorzugsweise in Kunststoff eingebettet sind, beschichtet ist. Der Trägerstab kann vorzugsweise aus Metall sein, ebenso wie der Trägerstab 24 in Fig. 7. Auch hier sind gewindeähnliche Umfangsrillen 25 vorgesehen, in welcher eine Faser oder ein Faserbündel aus Glas, Kohlenstoff bzw. glasfaser- oder kohlenstoffaser¬ verstärktem Kunststoff 26 festgelegt sind. 6 shows a support rod 22 which preferably has thread-like circumferential grooves and which is coated on its circumference with a mat made of glass fibers, which are preferably embedded in plastic. The carrier rod can preferably be made of metal, as can the carrier rod 24 in FIG. 7. Here too, thread-like circumferential grooves 25 are provided, in which a fiber or a fiber bundle made of glass, carbon or glass fiber or carbon fiber reinforced plastic 26 are fixed.

Claims

A n s p r ü c h e Expectations
1. Rakelstab, insbesondere zum Dosieren von Streichmassen auf laufenden Bahnen aus Papier oder Karton oder Gummiüberzügen von Walzen, dadurch gekennzeichnet, daß er mindestens im Oberflächenbereich, der die Rakel- oder Dosierfläche bildet, aus Glas oder Kohlenstoffaser oder aus glas- oder kohlenstoffverstärkter(n) Kunststoffaser(n) besteht.1. doctor rod, in particular for dosing coating slips on running webs of paper or cardboard or rubber coatings on rollers, characterized in that it consists of glass or carbon fiber or of glass or carbon-reinforced (n ) There is plastic fiber (s).
2. Rakelstab nach Anspruch 1, dadurch gekennzeichnet, daß er vollständig aus Glas besteht.2. Doctor rod according to claim 1, characterized in that it consists entirely of glass.
3. Rakelstab nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß er mindestens im Oberflächenbereich aus Acrylglas besteht.3. Doctor rod according to claim 1 or 2, characterized in that it consists of acrylic glass at least in the surface area.
4. Rakelstab nach Anspruch 1 oder 3, dadurch gekennzeichnet, daß ein Metallträger (11) für den Oberflächenbereich (2) aus Glas vorgesehen ist.4. Doctor rod according to claim 1 or 3, characterized in that a metal carrier (11) for the surface area (2) made of glass is provided.
5. Rakelstab nach Anspruch 1 oder 3, dadurch gekennzeichnet, daß ein Kohlefaserträger (6) für den Oberflächenbereich (2) aus Glas oder Kohlenstoffaser vorgesehen ist.5. Doctor rod according to claim 1 or 3, characterized in that a carbon fiber support (6) for the surface area (2) made of glass or carbon fiber is provided.
6. Rakelstab nach Anspruch 1, 3 oder 5, dadurch gekennzeichnet, daß er eine (äußere) Umwicklung aus Glas- oder Kohlefaser (14) in Umfangsrichtung aufweist.6. Doctor blade according to claim 1, 3 or 5, characterized in that it has an (outer) wrapping made of glass or carbon fiber (14) in the circumferential direction.
7. Rakelstab nach Anspruch 6, dadurch gekennzeichnet, daß die Umwicklung aus Glas- oder Kohlefaser Windung an Windung anliegend aufgebracht ist. 7. doctor rod according to claim 6, characterized in that the winding of glass or carbon fiber winding is applied to turn.
8. Rakelstab nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß auf die Kohlefaserumwicklung eine Glasdeckschicht aufgebracht ist.8. Doctor rod according to claim 6 or 7, characterized in that a glass cover layer is applied to the carbon fiber winding.
9. Rakelstab nach Anspruch 1 oder 6, dadurch gekennzeichnet, daß Kohlenstoffasern in einer Epoxidharzumhüllung und -verklebung gebündelt sind und als solches Bündel als schraubenlinienförmige Umwicklung dienen.9. doctor rod according to claim 1 or 6, characterized in that carbon fibers are bundled in an epoxy resin coating and bonding and serve as such bundles as a helical wrap.
10. Rakelstab nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß er aus einem Metallträger (11) und aus einem Mantel (12) aus Glas, Glas- oder Kohlenstoffaser besteht.10. Doctor rod according to one of claims 1 to 9, characterized in that it consists of a metal carrier (11) and a jacket (12) made of glass, glass or carbon fiber.
11. Rakelstab nach Anspruch 10, dadurch gekennzeichnet, daß der Träger, z.B. Metallträger (11), und der Mantel (12) aus Glas miteinander verklebt sind.11. Doctor rod according to claim 10, characterized in that the carrier, e.g. Metal carrier (11), and the jacket (12) made of glass are glued together.
12. Rakelstab nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß er kreiszylindrisch ausgebildet ist.12. Doctor rod according to one of claims 1 to 11, characterized in that it is circular cylindrical.
13. Rakelstab nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß sein Durchmesser maximal 20 mm beträgt und er in einem Kunststoffbett (9) gehalten ist, das an einem federnden, flexiblen, blatt- oder leistenartigen Träger (10) gehalten ist.13. Doctor blade according to one of claims 1 to 12, characterized in that its diameter is a maximum of 20 mm and it is held in a plastic bed (9) which is held on a resilient, flexible, sheet-like or strip-like carrier (10).
14. Rakelstab nach Anspruch 1, dadurch gekennzeichnet, daß er aus einem stabförmigen, langgestreckten Träger (31, 31') aus Glas sowie einer Glasfadenumwicklung (32) im wesentlichen in Umfangsrichtung besteht, wobei die Umwicklung (32) mit dem Träger an den gegenseitigen Berührungsstellen, z.B. durch Laserstrahl, verschmolzen ist 14. Doctor rod according to claim 1, characterized in that it consists of a rod-shaped, elongated carrier (31, 31 ') made of glass and a glass thread wrapping (32) substantially in the circumferential direction, the wrapping (32) with the carrier on the other Contact points, for example by laser beam, is fused
15. Rakelstab nach Anspruch 14, dadurch gekennzeichnet, daß der stabförmige Träger aus einem inneren Metallkern (33) und einem äußeren hohlzylindrischen Glasmantel (31') besteht, der fest mit dem Metallkern (33) verbunden ist.15. Doctor rod according to claim 14, characterized in that the rod-shaped carrier consists of an inner metal core (33) and an outer hollow cylindrical glass jacket (31 ') which is fixedly connected to the metal core (33).
16. Rakelstab nach Anspruch 1, dadurch gekennzeichnet, daß ein Glasstab im wesentlichen in Umfangsrichtung durch Eindrücken, vorzugsweise im plastischen Zustand, Einschleifen oder Einfräsen profiliert ist.16. Doctor rod according to claim 1, characterized in that a glass rod is profiled substantially in the circumferential direction by pressing, preferably in the plastic state, grinding or milling.
17. Rakelstab nach einem der Ansprüche 1, 4 oder 5, dadurch gekennzeichnet, daß Fasermatten (23) auf einem vorzugsweise durch Umfangsrillen profilierten Trägerstab (22) befestigt sind.17. Doctor rod according to one of claims 1, 4 or 5, characterized in that fiber mats (23) are fastened on a carrier rod (22), preferably profiled by circumferential grooves.
18. Rakelstab nach einem der Ansprüche 1 bis 6 und 8 bis 16, dadurch gekennzeichnet, daß Fasern oder Faserbündel (26) in Umfangsrillen (25) eines Trägerstabes (24) eingebettet sind. 18. Doctor rod according to one of claims 1 to 6 and 8 to 16, characterized in that fibers or fiber bundles (26) are embedded in circumferential grooves (25) of a carrier rod (24).
EP93914699A 1992-06-24 1993-06-23 Doctor bar Expired - Lifetime EP0601168B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4220603 1992-06-24
DE4220603A DE4220603A1 (en) 1992-06-24 1992-06-24 Doctor rod
PCT/EP1993/001599 WO1994000637A1 (en) 1992-06-24 1993-06-23 Doctor bar

Publications (2)

Publication Number Publication Date
EP0601168A1 true EP0601168A1 (en) 1994-06-15
EP0601168B1 EP0601168B1 (en) 1995-11-22

Family

ID=6461673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93914699A Expired - Lifetime EP0601168B1 (en) 1992-06-24 1993-06-23 Doctor bar

Country Status (7)

Country Link
EP (1) EP0601168B1 (en)
JP (1) JPH06509990A (en)
AT (1) ATE130645T1 (en)
CA (1) CA2116432A1 (en)
DE (2) DE4220603A1 (en)
FI (1) FI100672B (en)
WO (1) WO1994000637A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29716288U1 (en) * 1997-09-10 1999-01-21 Voith Sulzer Papiermasch Gmbh Device for direct or indirect application of a liquid or pasty application medium to a running material web, in particular made of paper or cardboard
FI104103B1 (en) * 1998-11-09 1999-11-15 Valmet Corp The coating bar
DE102018131405A1 (en) * 2018-12-07 2020-06-10 Koenig & Bauer Ag Device for coating a printing material and method for coating a printing material by means of a doctor metering system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1268029B (en) * 1966-05-17 1968-05-09 Interchem Corp Spreader bar
DE3703834A1 (en) * 1987-02-07 1988-08-18 Jagenberg Ag ROLLER SCRAPER APPLICATION TO APPLY COATINGS ON MATERIALS
DE3841494A1 (en) * 1988-12-09 1990-06-13 Jagenberg Ag Spreading shaft for the volumetric metering of coating material
DE4031313A1 (en) * 1990-10-04 1992-04-09 Jagenberg Ag Paper coating doctor rod for cardboard web - has wire wound in out-of-round cross=section to increase rod life for volumetric coating material dosage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9400637A1 *

Also Published As

Publication number Publication date
EP0601168B1 (en) 1995-11-22
ATE130645T1 (en) 1995-12-15
DE4220603A1 (en) 1994-01-13
WO1994000637A1 (en) 1994-01-06
FI940844A (en) 1994-02-23
FI940844A0 (en) 1994-02-23
DE59301004D1 (en) 1996-01-04
FI100672B (en) 1998-01-30
CA2116432A1 (en) 1994-01-06
JPH06509990A (en) 1994-11-10

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