EP0287759B1 - Vorrichtung zum Beschichten einer Materialbahn - Google Patents

Vorrichtung zum Beschichten einer Materialbahn Download PDF

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Publication number
EP0287759B1
EP0287759B1 EP88102005A EP88102005A EP0287759B1 EP 0287759 B1 EP0287759 B1 EP 0287759B1 EP 88102005 A EP88102005 A EP 88102005A EP 88102005 A EP88102005 A EP 88102005A EP 0287759 B1 EP0287759 B1 EP 0287759B1
Authority
EP
European Patent Office
Prior art keywords
coating
chamber
doctor
application chamber
metering system
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
EP88102005A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0287759A1 (de
Inventor
Reinhard Knop
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.)
Jagenberg AG
Original Assignee
Jagenberg AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6323658&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0287759(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jagenberg AG filed Critical Jagenberg AG
Priority to AT88102005T priority Critical patent/ATE81365T1/de
Publication of EP0287759A1 publication Critical patent/EP0287759A1/de
Application granted granted Critical
Publication of EP0287759B1 publication Critical patent/EP0287759B1/de
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
    • D21H23/34—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
    • 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

Definitions

  • the invention relates to a device for coating a web of material guided around a counter roller according to the preamble of patent claim 1.
  • the inlet-side boundary of the application chamber is formed by an overflow plate, which ends at a short distance from the counter roller and thus leaves an overflow gap free.
  • the liquid flowing out through the overflow gap prevents air from entering with the paper web entering the application chamber.
  • the lateral sealing of the chamber on the end faces of the counter roll takes place, for. B. with insulation boards.
  • the elements by which the applicator chamber is delimited including the doctor knife and its attachment (doctor bar), form a structural unit that can be pivoted about an axis parallel to the counter-roller axis.
  • the strike angle of the doctor knife for adjusting the line weight can be varied.
  • the coat weight can also be influenced by changing the distance of the doctor bar from the counter roller.
  • the coating weight can only be varied within narrow limits. This is due to the fact that influencing the coating weight by changing the coating angle of the scraper knife is only possible within very narrow limits, since changing the coating angle has a negative effect on the flow pattern in the application chamber, so that coating defects as a result of undesired eddy formation, segregation of color, air intake etc.
  • Coating devices are already known in which the application chamber is completely separate from the metering system. In these embodiments it is necessary that an overflow of coating material from the application chamber takes place both on the paper inlet side and on the outlet side.
  • the invention has for its object to provide a generic coating device in which a wide coat weight range (z. B. 4 - 20 g / m2) can be set without great effort, without line defects occurring at high web speeds.
  • nozzle applicators can be equipped with blade systems for the first time, in which the preload can be varied largely independently of the geometry of the doctor blade in the area of the metering point.
  • blade systems for the first time, in which the preload can be varied largely independently of the geometry of the doctor blade in the area of the metering point.
  • the elastic sealing lip according to claim 3 and 5 represents a structurally simple way to seal the application chamber in the case of relative movements to the metering system.
  • the device according to the invention is used to coat a paper web 2 guided around a counter roller 1.
  • the applicator which has a cross section perpendicular to the counter roller axis over the working width, has an application chamber 3 which is delimited on the paper inlet side by an overflow plate 4, which is in a certain Distance in front of the counter roller 1 ends, leaving an overflow gap 5 free.
  • a chamber floor 6 follows in the direction of paper travel, an inlet slot 7 for the coating slip remaining free between the overflow plate 4 and the chamber floor 6.
  • the chamber base 6 On the paper outlet side, the chamber base 6 is extended with an elastic sealing lip 12 fastened to it, which rests sealingly against a metering system delimiting the application chamber 3 on the outlet side.
  • the sealing lip 12 bears on a scraper knife 13, in the embodiment according to FIG. 2 on the holder 14 of a scraper bar 15.
  • the elements 4, 6, 8, 9 delimiting the pre-distribution and application chamber 10, 3, including the sealing lip 12, are fastened together with the ink supply system 11 to a pivotable support structure 16 which extends across the machine width and can thus be pivoted away from the counter roller 1 for web feeding will.
  • the overflow plate 4 with its holder 8 can also be opened against the paper running direction.
  • the embodiment according to FIG. 1 has a metering system with a scraper knife 13, the base of which is firmly clamped in a displaceable clamping strip 17 and which is supported below the metering point 18 by a comb strip 19.
  • the clamping and comb bar 17, 19 are mounted in a scraper bar 20 which can be pivoted about the metering point 18.
  • the dosing system in the embodiment according to FIG. 2 also has a pivotable scraper bar 20 with a displaceable clamping strip 17.
  • a scraper bar 15 is used as the metering element, the holder 14 of which is firmly clamped in the clamping bar 17.
  • the holder 14 widens at its head end and forms a bed for the scraper strip 15, which is elastically supported by a hose 21 loaded with compressed air.
  • This dosing system is described in detail in DE-A 33 38 323.
  • the coating or spreading of the paper web 2 guided on the counter roller 1 is carried out by applying coating slip to the web 2 in the application chamber 3 and metering the desired coating weight on the web 2 with the aid of the metering element 13 or 15.
  • coating slip is continuously supplied in excess via the inlet slot 7, so that the chamber 3 is constantly filled.
  • the excess mass escapes through the overflow gap 5 against the direction of web travel and thus prevents the entry of the air boundary layer entrained with the moving web 2.
  • the metering element arranged at the web exit (in FIG. 1 the scraper knife 13, in FIG. 2 the scraper bar 15) doses the paint in the desired weight per unit area by holding back the excess portion of the ink stream moving with the web in the chamber 3.
  • the metering system can be pivoted about the metering point 18 independently of the application chamber 3 in order to vary the coating weight within a wide range by changing the coating angle (angle between metering element 13 or 15 and the web 2).
  • the elastic sealing lip 12 seals the chamber 3 from one another in the various positions with respect to the respective metering system. Since the application chamber 3 - apart from the metering element 13, 15 - is independent of the movement of the doctor bar 19, the geometry of the chamber 3 including the overflow gap 5 is essentially retained.
  • the geometric changes due to the movement of the metering elements 13 and 15 are so small in the vicinity of the metering point 18 that they are compensated for by deformation of the sealing lip 12.
  • the bias of the scraper knife 13 can be adjusted by moving the clamping bar 17, and the bias of the scraper bar 15 can be adjusted by changing the pressure in the hose 21 without the geometry in the region of the metering point 18 being changed negatively.
  • the scraper bar 20 can also be pivoted away from the counter roller 1 for web feeding and cleaning.

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Cell Separators (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Vending Machines For Individual Products (AREA)
EP88102005A 1987-03-24 1988-02-11 Vorrichtung zum Beschichten einer Materialbahn Expired - Lifetime EP0287759B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88102005T ATE81365T1 (de) 1987-03-24 1988-02-11 Vorrichtung zum beschichten einer materialbahn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3709295 1987-03-24
DE19873709295 DE3709295A1 (de) 1987-03-24 1987-03-24 Vorrichtung zum beschichten einer materialbahn

Publications (2)

Publication Number Publication Date
EP0287759A1 EP0287759A1 (de) 1988-10-26
EP0287759B1 true EP0287759B1 (de) 1992-10-07

Family

ID=6323658

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102005A Expired - Lifetime EP0287759B1 (de) 1987-03-24 1988-02-11 Vorrichtung zum Beschichten einer Materialbahn

Country Status (9)

Country Link
US (1) US4836134A (sv)
EP (1) EP0287759B1 (sv)
JP (1) JPS63256161A (sv)
AT (1) ATE81365T1 (sv)
BR (1) BR8801312A (sv)
CA (1) CA1309246C (sv)
DE (2) DE3709295A1 (sv)
ES (1) ES2036607T3 (sv)
FI (1) FI91721C (sv)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8826439D0 (en) * 1988-11-11 1988-12-14 Ecc Int Ltd Paper-coating
EP0542635B1 (en) * 1991-10-15 1999-06-09 Eastman Kodak Company Magnetic dispersion coating method and apparatus having high shear regions
US5366551A (en) * 1992-03-11 1994-11-22 Institute Of Paper Science And Technology, Inc. Coating device for traveling webs
US5354376A (en) * 1992-03-11 1994-10-11 Institute Of Paper Science And Technology Flotation coating device for traveling webs
DE9214884U1 (de) * 1992-10-28 1994-03-03 Zimmer, Johannes, Klagenfurt Rakeleinrichtung
US5538557A (en) * 1993-08-24 1996-07-23 Beloit Technologies, Inc. Short dwell coater apparatus
FI105260B (sv) * 1994-10-24 2000-07-14 Valmet Paper Machinery Inc Förfarande och anordning för reglering av bestrykningsprofilen vid bestrykning av short dwell-typ
US5820674A (en) * 1996-08-16 1998-10-13 Institute Of Paper Science And Technology, Inc. Vortex-free coating device for traveling webs
DE29619169U1 (de) * 1996-11-08 1997-01-23 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Auftragseinrichtung zum Auftragen eines Mediums auf eine laufende Bahn
JP3214408B2 (ja) * 1997-09-09 2001-10-02 株式会社村田製作所 セラミックグリーンシートの製造方法および製造装置
CN102873982A (zh) * 2012-10-31 2013-01-16 贵州劲嘉新型包装材料有限公司 油墨消泡装置
JP6523996B2 (ja) 2016-03-10 2019-06-05 三菱重工業株式会社 塗布装置
CN105855138A (zh) * 2016-06-12 2016-08-17 镇江金山物流中心 一种涂布机上胶调整机构
CN107597513A (zh) * 2017-10-18 2018-01-19 杭州星华反光材料股份有限公司 间隙涂布涂胶装置和逗号刮刀涂布机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301214A (en) * 1964-03-10 1967-01-31 Black Clawson Co Paper machinery coating doctor blade backs
US3486482A (en) * 1966-12-30 1969-12-30 Westvaco Corp Apparatus for coating traveling webs
DE2825907B2 (de) * 1978-06-13 1981-02-26 Jagenberg-Werke Ag, 4000 Duesseldorf Vorrichtung zum Aufbringen einer Beschichtung auf eine Materialbahn
US4310573A (en) * 1980-07-31 1982-01-12 Consolidated Papers, Inc. Method and apparatus for supplying coating to a coater
ATE21534T1 (de) * 1981-09-16 1986-09-15 Cons Paper Inc Vorrichtung zur beschichtung einer bahn und verfahren zur bedienung zweier beschichtungsgeraeten.
DE3338323A1 (de) * 1982-11-23 1984-05-24 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum beschichten laufender materialbahnen
FI75285C (sv) * 1983-02-21 1988-07-08 Jagenberg Ag Anordning för beläggning av löpande materialbanor.
DE3313972A1 (de) * 1983-04-18 1984-10-18 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum ein- und vorspannen eines elastischen streichmessers
DE3336553C2 (de) * 1983-10-07 1986-07-03 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung zur Beschichtung laufender Warenbahnen
DE3338095A1 (de) * 1983-10-20 1985-05-09 J.M. Voith Gmbh, 7920 Heidenheim Streicheinrichtung
DE8414904U1 (de) * 1984-05-16 1986-02-06 Jagenberg AG, 4000 Düsseldorf Vorrichtung zum kontinuierlichen gleichzeitigen Aufbringen von Beschichtungen auf eine, vorzugsweise beide Seiten einer Materialbahn

Also Published As

Publication number Publication date
DE3875152D1 (de) 1992-11-12
FI91721B (sv) 1994-04-29
ATE81365T1 (de) 1992-10-15
EP0287759A1 (de) 1988-10-26
DE3709295A1 (de) 1988-10-13
CA1309246C (en) 1992-10-27
BR8801312A (pt) 1988-11-01
FI881394A (sv) 1988-09-25
US4836134A (en) 1989-06-06
FI881394A0 (sv) 1988-03-23
ES2036607T3 (es) 1993-06-01
FI91721C (sv) 1994-08-10
DE3709295C2 (sv) 1993-05-06
JPS63256161A (ja) 1988-10-24

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