EP0406529A2 - Dispositif d'enduction - Google Patents

Dispositif d'enduction Download PDF

Info

Publication number
EP0406529A2
EP0406529A2 EP90107009A EP90107009A EP0406529A2 EP 0406529 A2 EP0406529 A2 EP 0406529A2 EP 90107009 A EP90107009 A EP 90107009A EP 90107009 A EP90107009 A EP 90107009A EP 0406529 A2 EP0406529 A2 EP 0406529A2
Authority
EP
European Patent Office
Prior art keywords
coating
roller
counter
throttle
channel
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
EP90107009A
Other languages
German (de)
English (en)
Other versions
EP0406529A3 (en
EP0406529B1 (fr
Inventor
Martin Dr.-Ing. Kustermann
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
Priority claimed from DE3942590A external-priority patent/DE3942590C2/de
Application filed by JM Voith GmbH filed Critical JM Voith GmbH
Publication of EP0406529A2 publication Critical patent/EP0406529A2/fr
Publication of EP0406529A3 publication Critical patent/EP0406529A3/de
Application granted granted Critical
Publication of EP0406529B1 publication Critical patent/EP0406529B1/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
    • 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
    • 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
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/18—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material only one side of the work coming into contact with the liquid or other fluent 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
    • D21H23/36—Knife or blade forming part of the fluid reservoir, e.g. puddle-type trailing blade or short-dwell coaters
    • 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
    • B05C11/04—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 with blades

Definitions

  • the invention relates to a coating device according to the preamble of claim 1.
  • a coating device is known from DE-C 35 13 063.
  • a relatively large, spacious application space is provided on the coating blade and the counter roller guiding the web, which is on the inlet side the web is delimited by a front wall which has outlet openings.
  • This front wall extends almost to the point where it touches the counter roll.
  • the object of the invention is to improve the quality of the applied stroke with regard to uniformity in such or similar coating devices (see also German application P 36 12 248). Because of the high web speeds, it seems to be difficult with the previously known application devices of the generic type to prevent turbulence occurring in the coating slip.
  • the material web is guided by the counter roller 2 in the area of the coating blade 4.
  • the coating slip passes from the chamber 10 via the mouth channel 11 'to the mouth 11 and from there to the coating blade 4.
  • the coating slip is supplied with a certain excess, which in this case, however, can be significantly smaller than in the previously known coating devices.
  • An upper plate 1 as a cover body forms the throttle gap 8 with a width (width) of between 3 and 15 mm, preferably between 5 and 8 mm, relative to the coating blade 4.
  • the length of this channel is between 5 and 25 mm, preferably between 5 and 15 mm.
  • the tip 16 of the plate 1 (that is to say the edge which is rounded at most with a radius of 1 mm and is close to the counter roller 2) is approximately 3 to 10 mm away from the counter roller 2.
  • the plate 1 forms with a further plate 5 as a base cover body from the application space 9 on the doctor blade 4, where the coating compound flows from the mouth 11 to the scraper edge of the doctor blade, leading further throttle channel (drain channel) 7, which is essentially here Area between the mouth 11 and the front boundary wall 13 of the mouth 11 or the mouth channel 11 'and the chamber 10 extends. Its height is approximately between 3 and 6 mm and its length is essentially between ten and twenty times the specified height.
  • the throttle ducts are practically slit-shaped in sections parallel to the central longitudinal axis of the counter-roller 2, because in this direction they have an overall length corresponding to the length of the counter-roller, for example 8 m in length of the counter-roller 2 and a channel (slot) height of 5 or 8 mm (see for example "e") exceeds the latter by orders of magnitude (see for example also FIG. 5).
  • the application chamber prefferably feed the coating slip directly to the roller 2, which is then wrapped or touched by the material web in another area, in which the coating material is then transferred to the material web.
  • FIG. 2 shows yet another possible embodiment of the base body and cover body.
  • the reference symbols are each provided with an additional apostrophe.
  • the throttle channels each meet the conditions.
  • the feature of claim 2 is also fulfilled.
  • a doctor blade 30 can also be used as a doctor element, which is rotatably guided in a doctor bed 31, which is fastened to a support spring 32 designed as a leaf spring in the doctor clamp holder 33, 34.
  • the second throttle channel 8 ′′′ is formed by the cover body 1 ′′′ opposite the doctor holder 31 of the roller doctor 30.
  • the throttle channel 7 ′′′ can be controlled by a throttle slide 21 with throttle windows 22 in its throttle strength.
  • a throttle strip 24 with corresponding windows 25 is assigned to each slide.
  • the throttling action of the throttle channel can also be based essentially solely on the action of this slide 21.
  • This execution The shape of the coating can of course be adapted in a very comprehensive manner to the most varied conditions of the coating process, for example also the parameters of the coating composition, such as, for example, their consistency.
  • FIG. 6 shows a further variant of the arrangement according to the invention, the cover body 36 forming the first throttle duct 37 directly with a very thick front wall 43 of the mouth 41 of the chamber 50 for the coating slip.
  • this front wall 43 forms a substantially load-bearing component of the coating device or of the support beam for the coating blade 4.
  • Dash-dotted lines show how a constriction point at the outlet of the outlet channel 41 can be formed by a nose-shaped projection 44 of the front wall 43.
  • doctor blade 4 It is customary to adjust the doctor blade 4 by means of a pressure piece engaging in its free area, which can also be divided along the axis of the counter roller or the width of the paper web in order to exert different pressures on the doctor blade 4. This leads to a deflection of the same, so that the second throttle channel 8, 8 ', 8 ⁇ etc. could be changed quite greatly in its dimension. This is excluded if a coating device is used in which the contact angle of the coating blade 4 on the counter roller or paper web is kept constant by appropriate swivel conditions. Such a device has become known, inter alia, from US Pat. No. 4,637,338. Various other design options in this regard are known.
  • the support beam including the chamber for the coating compound including its mouth into the application zone and thus also the cover body and, if appropriate, the base body is pivoted to the same extent as the angular position of the clamping of the coating blade changes.
  • the conditions in the area of the second throttle duct remain essentially with everyone Obtain operating conditions so that the dimensions of the second throttle channel do not change significantly.
  • Fig. 7 and Fig. 7a an arrangement is shown in cross-section or in longitudinal section, in which the coating slip is also supplied from an application chamber 42 via a mouth 44 thereof to a pressure chamber which is arranged on the coating blade 4 and counter-roller 2 becomes.
  • the material web which is guided by the counter-roller 2, or the roller surface itself is coated with the coating slip in the pressure chamber, which is metered and smoothed by the coating blade 4.
  • the necessary excess portion of the coating slip flows via the openings or the channel 47 of the front wall 41 which delimits the pressure space on the inlet side of the web or the roller surface to the throttle point, which is through the throttle slide 24 with the throttle openings 25 or the throttle strip 21 with the throttle openings 22 is formed, too.
  • the front wall 41 still preferably forms a throttle gap 43 on the counter-roller 2, which has such a strong throttling effect that only an extremely small amount of coating slip flows out here.
  • a well-acting metering device is obtained, which produces a relatively smooth, trouble-free line with a relatively simple structure of the arrangement.
  • Lateral side seals, which are to be arranged at the ends of the counter roller, are also easy to attach here.
  • the throttle slide or the parts of the throttle device are fixed by a clamping strip 46 on the front wall 41.
  • the shifting devices as well as slide 24 are not shown here.
  • the doctor blade 4 is clamped in via an extension of the wall 48 of the application chamber 42 and a clamping lever 49.
  • the direction of movement of the counter roller is also indicated by an arrow.
  • the application layer can then be transferred to a paper web, see e.g. US-A 48 48 268.

Landscapes

  • Coating Apparatus (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Finger-Pressure Massage (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Glass Compositions (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Seal Device For Vehicle (AREA)
EP90107009A 1989-06-22 1990-04-11 Dispositif d'enduction Expired - Lifetime EP0406529B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3920381 1989-06-22
DE3920381 1989-06-22
DE3942590 1989-12-22
DE3942590A DE3942590C2 (de) 1989-06-22 1989-12-22 Streicheinrichtung

Publications (3)

Publication Number Publication Date
EP0406529A2 true EP0406529A2 (fr) 1991-01-09
EP0406529A3 EP0406529A3 (en) 1991-10-23
EP0406529B1 EP0406529B1 (fr) 1994-06-29

Family

ID=25882200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107009A Expired - Lifetime EP0406529B1 (fr) 1989-06-22 1990-04-11 Dispositif d'enduction

Country Status (9)

Country Link
US (1) US5078081A (fr)
EP (1) EP0406529B1 (fr)
JP (1) JPH0330862A (fr)
AT (1) ATE107981T1 (fr)
BR (1) BR9002989A (fr)
CA (1) CA2019703A1 (fr)
ES (1) ES2055823T3 (fr)
FI (1) FI902995A7 (fr)
NO (1) NO902079L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009290A1 (fr) * 1991-10-29 1993-05-13 Beloit Technologies, Inc. Appareil de couchage
WO1995004858A1 (fr) * 1993-08-09 1995-02-16 Macmillan Bloedel Limited Profilage du poids de couche

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5599369A (en) * 1994-04-29 1997-02-04 Owens-Brockway Glass Container Inc. Hood for metal-oxide vapor coating glass containers
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
US5599393A (en) * 1995-04-25 1997-02-04 Macmillan Bloedel Limited Metering rod coaters
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
US5902401A (en) * 1997-07-09 1999-05-11 Pevifibe Papers Inc. Coater head
JP4457245B2 (ja) * 1999-01-14 2010-04-28 Ｎｏｋクリューバー株式会社 被覆層成形機
JP4830843B2 (ja) * 2006-12-21 2011-12-07 東洋紡績株式会社 反応カップ収納器、及び反応測定器具セット
EP2353736A1 (fr) * 2010-01-29 2011-08-10 3M Innovative Properties Company Procédé continu pour la formation d'un film multicouche et film multicouche préparé selon un tel procédé
WO2013059549A1 (fr) 2011-10-19 2013-04-25 3M Innovative Properties Company Articles pourvus de revêtements minces appliqués à chaud et leurs procédés de production

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE360408B (fr) * 1968-12-30 1973-09-24 Waertsilae Oy Ab
US4405661A (en) * 1981-09-10 1983-09-20 Beloit Corporation Blade type fountain coater and method
DE3338095A1 (de) * 1983-10-20 1985-05-09 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung
CH663362A5 (de) * 1984-01-07 1987-12-15 Jagenberg Ag Vorrichtung zum beschichten von ueber eine stuetzwalze laufenden materialbahnen mit regelbarer auftragsstaerke.
FI71081C (fi) * 1984-05-11 1986-11-24 Waertsilae Oy Ab Bestrykningsanordning
DE3438380A1 (de) * 1984-10-19 1986-04-24 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung zur beschichtung laufender warenbahnen
DE3505769A1 (de) * 1985-02-20 1986-08-21 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung
DE3513063A1 (de) * 1985-04-12 1986-10-16 Jagenberg AG, 4000 Düsseldorf Streicheinrichtung zur beschichtung von entlang einer gegenwalze gefuehrten warenbahn, insbesondere papierbahnen
DE3612248C2 (de) * 1985-05-09 1995-04-13 Cons Paper Inc Streicheinrichtung
DE3616645A1 (de) * 1986-05-16 1987-11-19 Voith Gmbh J M Streicheinrichtung
FI81640C (fi) * 1986-11-14 1990-11-12 Valmet Paper Machinery Inc Short-dwell-bestrykningsanordning foer bestrykning av en materialbana med bestrykningsmassa.
DE3734900A1 (de) * 1987-05-07 1988-12-01 Voith Gmbh J M Einrichtung zum beschichten einer laufenden papier- oder kartonbahn

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009290A1 (fr) * 1991-10-29 1993-05-13 Beloit Technologies, Inc. Appareil de couchage
WO1995004858A1 (fr) * 1993-08-09 1995-02-16 Macmillan Bloedel Limited Profilage du poids de couche

Also Published As

Publication number Publication date
CA2019703A1 (fr) 1990-12-22
ATE107981T1 (de) 1994-07-15
EP0406529A3 (en) 1991-10-23
ES2055823T3 (es) 1994-09-01
EP0406529B1 (fr) 1994-06-29
US5078081A (en) 1992-01-07
NO902079D0 (no) 1990-05-10
BR9002989A (pt) 1991-08-20
FI902995A0 (fi) 1990-06-14
FI902995A7 (fi) 1990-12-23
JPH0330862A (ja) 1991-02-08
NO902079L (no) 1990-12-27

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