EP0848109A1 - Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Oberfläche - Google Patents

Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Oberfläche Download PDF

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Publication number
EP0848109A1
EP0848109A1 EP97119535A EP97119535A EP0848109A1 EP 0848109 A1 EP0848109 A1 EP 0848109A1 EP 97119535 A EP97119535 A EP 97119535A EP 97119535 A EP97119535 A EP 97119535A EP 0848109 A1 EP0848109 A1 EP 0848109A1
Authority
EP
European Patent Office
Prior art keywords
lip
liquid
guide surface
leg
flow guide
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.)
Withdrawn
Application number
EP97119535A
Other languages
German (de)
English (en)
French (fr)
Inventor
Harald Hess
Zygmunt Madrzak
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
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 Voith Sulzer Papiermaschinen GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0848109A1 publication Critical patent/EP0848109A1/de
Withdrawn legal-status Critical Current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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0283—Flat jet coaters, i.e. apparatus in which the liquid or other fluent material is projected from the outlet as a cohesive flat jet in direction of the work
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/04—Curtain coater
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1798—Surface bonding means and/or assemblymeans with work feeding or handling means with liquid adhesive or adhesive activator applying means

Definitions

  • the invention relates to a commission for direct or indirect application of a liquid or pasty medium on a running surface according to the generic term of claim 1.
  • the liquid or pasty medium is generally over a color distribution tube, which extends within the width of the application unit (or Width of the support beam to be coated) is arranged, fed. From the paint distribution pipe, the medium enters one through passage openings Compensation room and flows from there via a feed channel to the metering gap, from which the liquid or pasty medium then in the form of the said "free Beam "emerges.
  • a material web runs past the free jet nozzle and becomes as above described, directly with the free jet of the liquid or pasty medium acted upon.
  • the material web can, for example, on the surface of one Roller are guided.
  • the free jet first on a support surface, e.g. the surface of an application roller, applied, to move from there in a nip through which the material web runs Applicator roller to be transferred to the web.
  • That lip of the two lips forming the metering gap that is on the side of the Dosing gap is on the "running surface" referred to in the introduction, which on the Commissioned work is referred to as the inlet lip. Accordingly, the second lip, which is on the side of the metering gap from which the running surface runs away from the application, referred to as the lip on the outlet side.
  • the free jet applicator is usually a final metering device downstream, which by means of a doctor element, e.g. a doctor blade, that applied liquid or pasty medium to the desired application quantity scrapes off. Furthermore, between the lip of the application unit on the outlet side and the End dosing device arranged a collecting trough to excess liquid or pasty medium that runs from the application or from the final metering device collect.
  • a doctor element e.g. a doctor blade
  • the invention has for its object a commissioned work of the above Way of creating a better smoothing out in a simple and effective way the amount of ink over the entire web width.
  • the invention can also be used very expediently in such cases Free jet applicators, where the metering gap designed as a free jet nozzle over the Length of the commission, according to the as yet unpublished applications 195 49085.1 and 195 32920.1 of the applicant, is divided like a comb. After that you can this comb-like subdivision directly into the inlet and / or outlet lip be incorporated. According to the above-mentioned applications, however, one of the Dosing gap or arranged in the inlet and / or outlet lip Profile bar with a variety of defined passage gaps are available.
  • the metering gap or the mentioned Profile bar Due to its special geometry, the metering gap or the mentioned Profile bar a variety of defined passage gaps for the liquid or pasty Medium on. This allows a large number of very precise passage openings provide for the liquid or pasty medium.
  • they work mentioned passage openings or gaps of the comb-like divided metering gap or the profile strip as a free jet nozzle from which the liquid or pasty medium in Form of a free jet emerges.
  • the coating medium on the web is evenly strong is distributed, but still finest stripes according to the geometry of the above passage columns described would be visible.
  • the commissioned work according to the invention therefore allows a simple in an advantageous manner in this variant further homogenization of the liquid or pasty medium to be carried out over the entire web width.
  • the invention enables Commissioned work that a possibly downstream metering knife due to the uniform spread over the entire web width, significantly less is charged.
  • Fig. 1 in a schematic cross-sectional representation, includes a first embodiment of the application unit 2 according to the invention a bar 20, which extends across the entire width of the application unit (in the direction of the width of the paper web) extends.
  • a distribution pipe 18, which is usually also as Color distribution pipe is called for the liquid or pasty medium to be applied is formed.
  • the feed channel 14 opens into a Free jet nozzle formed metering gap between an inlet 4 and a drain-side lip 8 is formed.
  • the feed channel 14 is preferably so designed that it tapers continuously towards the metering gap.
  • the metering gap itself is divided in this design like a comb and has a large number of defined ones Passage gaps (32) for the liquid or pasty medium.
  • a profile strip 30 is used.
  • the profile strip 30 is already in the as yet unpublished application 195 32920.1 and also unpublished application 195 49085.1 described by the applicant.
  • the profile strip 30 is arranged here on the lip 8 on the outlet side and extends essentially over the entire width of the running surface 26.
  • the profile strip 30 according to this embodiment has a substantially rectangular shape Cross section and is located in an upper region of the lip 8 on the outlet side and held as a holding device recess on one side.
  • the depth of the recess is greater than the depth of the profile strip 30, so that the Profile bar 30 in its holding device substantially transversely to the flow plane of the in the feed channel 14 flowing liquid or pasty medium 12 in a inlet-side lip 4 directed direction, in the figure by the arrow P2 is marked, is movable.
  • a pressing device is provided, which Profile strip 30 directly or indirectly transversely to the flow plane of the in the supply channel 14 flowing liquid or pasty medium 12 into the inlet lip 4 direction P2 presses.
  • This pressing device is in the present case as tubular element 50 formed, which is under Influence of an active medium, e.g.
  • Compressed air, deformed and the profile bar 30 under direct force in the aforementioned direction P2 moves.
  • a pressure generating device 60 shown in the drawing (FIG. 1) provided that the active medium in the tubular element 50 with a suitable pressure is applied.
  • a moving surface 26 Opposed to the applicator 2 is a moving surface 26, the one Application roller for an indirect application of the medium to be applied, or a backup roller that guides a running web of paper or cardboard.
  • the direction of rotation of the moving surface 26 is illustrated by an arrow P1.
  • a front wall 22 with which the drain-side lip 8 is firmly connected is rigidly fixed in operation.
  • you can at Need e.g. can be folded down about a hinge 28 for cleaning purposes.
  • the Back i.e. the side facing away from the feed channel 14, the front wall 22 is as Drain surface designed for excess liquid or pasty medium.
  • the liquid or pasty medium 12 first supplied via the color distribution pipe 18, then passes into the compensation space 16 and flows through the feed channel 14 to the passage gaps 32 of the profile strip 30, from which the medium then emerges in a free jet, not shown, where through the sharply bent guide or deflecting surface 10 of the lip 4 on the inlet side the application beam is deflected in the direction of the running surface 26.
  • the liquid or pasty medium 12 is in the form of this free jet on the current Surface applied and can then be connected in a downstream, not shown Final dosing device the applied medium to set a desired one Order quantity are doctored off.
  • the exemplary embodiment can also be provided with an adjustment device for the inlet side Lip 4 or the lip 8 on the outlet side.
  • the adjustment device is in not shown in the figures.
  • FIG. 2 which shows a schematically enlarged representation of the area X in FIG. 1 shows, details can be seen at the same time according to a further embodiment.
  • the profile strip 30 from FIG. 1 is not shown here because it is not mandatory must be present.
  • FIG. 2 shows the flow guide surface 10 more clearly.
  • An at an angle ⁇ - can be between 10 ° and 70 ° (in the example shown it is 45 °) - molded guide element 40 with its legs a and b, forms the Flow control surface 10.
  • the areas a and b are approximately the same length, with the leg a from the end the lip 4 on the inlet side, which is approximately at the same height as the lip 8 on the inlet side lies, is measured.
  • FIGS. 1 and 2 represent are only examples. Within the scope of the invention is of course Flow guide surface 10 or the guide element 40 also to the lip 8 on the outlet side attachable, as Fig. 3 shows.

Landscapes

  • Coating Apparatus (AREA)
EP97119535A 1996-12-12 1997-11-07 Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Oberfläche Withdrawn EP0848109A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19651738 1996-12-12
DE19651738A DE19651738A1 (de) 1996-12-12 1996-12-12 Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Oberfläche

Publications (1)

Publication Number Publication Date
EP0848109A1 true EP0848109A1 (de) 1998-06-17

Family

ID=7814509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119535A Withdrawn EP0848109A1 (de) 1996-12-12 1997-11-07 Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Oberfläche

Country Status (4)

Country Link
US (1) US6063193A (ja)
EP (1) EP0848109A1 (ja)
JP (1) JPH10165871A (ja)
DE (1) DE19651738A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109844218A (zh) * 2016-10-24 2019-06-04 福伊特专利有限公司 用于处理纤维材料的旋转的滚筒

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19800954A1 (de) * 1998-01-13 1999-07-15 Voith Sulzer Papiertech Patent Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
US8545574B2 (en) * 2003-06-17 2013-10-01 The Procter & Gamble Company Methods for treating fibrous structures
FI114726B (fi) * 2003-09-10 2004-12-15 Metso Paper Inc Järjestely kuiturainan päällystinlaitteen suutinpalkissa
US20060248745A1 (en) * 2005-05-03 2006-11-09 3M Innovative Properties Company Fixed air knife assembly

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930437A (en) * 1987-01-10 1990-06-05 J.M. Voith Gmbh Coating device for paper webs having a coating application space subdivided by a vane
US4934310A (en) * 1984-06-01 1990-06-19 J.M. Voith Gmbh Coating apparatus for coating moving sheet
US5436030A (en) 1992-09-11 1995-07-25 Consolidated Papers, Inc. Apparatus for and method of minimizing skip coating on a paper web
EP0701022A2 (de) * 1994-09-09 1996-03-13 Voith Sulzer Papiermaschinen GmbH Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE4432177A1 (de) 1994-09-09 1996-03-14 Voith Gmbh J M Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE4432180A1 (de) * 1994-09-09 1996-03-14 Voith Gmbh J M Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
JPH091027A (ja) * 1995-06-19 1997-01-07 Sony Corp 塗布装置
EP0761877A2 (de) * 1995-09-06 1997-03-12 Voith Sulzer Papiermaschinen GmbH Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19532920A1 (de) 1995-09-06 1997-03-13 Voith Sulzer Papiermasch Gmbh Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270702A (en) * 1978-04-26 1981-06-02 Albany International Corp. Adjustable orifice air knife
DE3167426D1 (en) * 1980-06-10 1985-01-10 Erich Pagendarm Fantail nozzle for producing a continuous gas or liquid veil, e.g. for burners
DE4432178A1 (de) * 1994-09-09 1996-03-14 Voith Gmbh J M Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE29520678U1 (de) * 1995-12-29 1996-05-30 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Auftragwerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4934310A (en) * 1984-06-01 1990-06-19 J.M. Voith Gmbh Coating apparatus for coating moving sheet
US4930437A (en) * 1987-01-10 1990-06-05 J.M. Voith Gmbh Coating device for paper webs having a coating application space subdivided by a vane
US5436030A (en) 1992-09-11 1995-07-25 Consolidated Papers, Inc. Apparatus for and method of minimizing skip coating on a paper web
EP0701022A2 (de) * 1994-09-09 1996-03-13 Voith Sulzer Papiermaschinen GmbH Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE4432177A1 (de) 1994-09-09 1996-03-14 Voith Gmbh J M Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE4432180A1 (de) * 1994-09-09 1996-03-14 Voith Gmbh J M Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
JPH091027A (ja) * 1995-06-19 1997-01-07 Sony Corp 塗布装置
EP0761877A2 (de) * 1995-09-06 1997-03-12 Voith Sulzer Papiermaschinen GmbH Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19532920A1 (de) 1995-09-06 1997-03-13 Voith Sulzer Papiermasch Gmbh Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE19549085A1 (de) 1995-09-06 1997-07-03 Voith Sulzer Papiermasch Gmbh Auftragwerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 097, no. 005 30 May 1997 (1997-05-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109844218A (zh) * 2016-10-24 2019-06-04 福伊特专利有限公司 用于处理纤维材料的旋转的滚筒
CN109844218B (zh) * 2016-10-24 2021-06-11 福伊特专利有限公司 用于处理纤维材料的旋转的滚筒

Also Published As

Publication number Publication date
US6063193A (en) 2000-05-16
DE19651738A1 (de) 1998-06-18
JPH10165871A (ja) 1998-06-23

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