EP1352691B1 - Tête d'application rotative - Google Patents

Tête d'application rotative Download PDF

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Publication number
EP1352691B1
EP1352691B1 EP03007191A EP03007191A EP1352691B1 EP 1352691 B1 EP1352691 B1 EP 1352691B1 EP 03007191 A EP03007191 A EP 03007191A EP 03007191 A EP03007191 A EP 03007191A EP 1352691 B1 EP1352691 B1 EP 1352691B1
Authority
EP
European Patent Office
Prior art keywords
applicator head
grooves
housing
roll
liquid medium
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 - Fee Related
Application number
EP03007191A
Other languages
German (de)
English (en)
Other versions
EP1352691A3 (fr
EP1352691A2 (fr
Inventor
Wolfgang Puffe
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.)
Nordson Corp
Original Assignee
Nordson Corp
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 Nordson Corp filed Critical Nordson Corp
Publication of EP1352691A2 publication Critical patent/EP1352691A2/fr
Publication of EP1352691A3 publication Critical patent/EP1352691A3/fr
Application granted granted Critical
Publication of EP1352691B1 publication Critical patent/EP1352691B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B05C5/0245—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 for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web
    • B05C5/025—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 for applying liquid or other fluent material to a moving work of indefinite length, e.g. to a moving web only at particular part of the work
    • 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
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • 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
    • B05C5/0225—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 characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B05C5/0229—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 characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve
    • B05C5/0233—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 characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve rotating valve, e.g. rotating perforated cylinder

Definitions

  • the invention relates to a gun for applying liquid media such as liquefied thermoplastics or molten hot melt adhesives on a relatively movable to the applicator head material web, with a housing, with a roller chamber in the housing in which a roller slide is rotatably driven, and with a slot nozzle for dispensing of medium which is controllable by the roller slide and extends transversely to the direction of movement of the material web.
  • the application head can be arranged at a distance or in contact with the material web,
  • An order head of this kind is from the DE 197 57 238 C2 known.
  • axially parallel surface grooves are formed on the roller slide, which produce an order of liquid medium in a line shape transversely to the direction of movement of the material web.
  • US 3,332,580 A discloses a fluid applicator valve which comprises a roller oscillating in a cylindrical bore.
  • a roller oscillating in a cylindrical bore.
  • a plurality of radially aligned through holes are arranged, through which the fluid exits.
  • a shoe is inserted into each bore and biased radially outwardly so that each shoe is pressed against the inner wall of the cylindrical bore.
  • Application heads of the aforementioned type are always used in many applications, where material webs are to be prepared for lamination to a substrate.
  • an intermittent order is applied to represent a job image in raster form. If the web is separated rapportwise by a knife, the cuts must be made in each case between two order lines of liquid medium to prevent sticking of medium to the knife.
  • the object of the invention is to provide an application head of the type described above, which ensures extremely selective line application of liquid medium to material webs.
  • the second surface grooves with the inserted sealing strips occupy substantially the entire cylinder surface of the roller slide between in each case two first surface grooves for supplying medium.
  • a pressing of the elastically supported closure strips is maintained at the feeders for the entire period between the passage of two first surface grooves.
  • the surfaces of the closure strips are cylindrical to adapt to the surface of the roll chamber.
  • radial outlet holes for liquid medium from the inner cavity to the second surface grooves lead to increase the contact pressure of the sealing strips on the surface of the roller chamber by the pressure of the liquid medium.
  • the surface grooves can be performed axially parallel, this applies to first and second surface grooves and accordingly for the sealing strips. If the first surface grooves form curved lines and in particular form closed lines, the second surface grooves can be supplemented with the end strips to these lines and in particular cover larger areas inside and outside of said closed lines on the cylinder surface of the roller slide. If necessary, the large-area second surface grooves can also accommodate multi-part closure strips.
  • An applicator head has the advantage that the control of the medium at the inlet openings to the feeders with clean breaks through the sealing strips takes place, so that the accuracy of the metering is not adversely affected by the viscosity of the medium or the elasticity of the medium. Due to the precise supply of the slot nozzle with medium from the inside of the roller slide out good order results can be achieved over the entire length of the gun without interference.
  • the representation of grid points transversely to the direction of movement of the web can be generated by using a corresponding nozzle aperture with individual holes at a small distance in the slot nozzle.
  • a single feed in the housing preferably communicates with a single bore in the nozzle diaphragm. If the use of such a nozzle diaphragm is dispensed with, a line application is produced in each case transversely to the direction of movement of the material web when axially parallel grooves are used.
  • a radial bore in the housing is provided at least at one end of the housing and an annular channel between the roller slide and roller chamber is formed, which is connected to the bore in the housing and there are radial feed holes in the roller slide in the plane of the annular channel executed with are connected to the inner cavity and serve as a supply for medium.
  • Said at least one annular channel can be formed by an annular groove in the roll surface and / or by a circumferential groove in the roll chamber bore.
  • the roller slide is provided with at least one axially exiting from the housing pin in which an axial bore is made, which is connected to the inner cavity and serves as a supply of medium to the inner cavity.
  • the housing design is particularly simple, but a rotating seal must be provided in the region of the pressurized medium supply.
  • a corresponding small increase in the diameter of the radial exit holes to the surface grooves over the roller slide length can compensate for a small pressure loss in the medium over the roller slide length be provided.
  • a leakage of medium from the housing can be prevented by the use of conventional shaft seals at the ends of the roller slide with respect to the roller chamber.
  • FIG. 1 shows an applicator head 11 of elongated cubic shape. From the housing 12 of the applicator head 11 protrudes one end of a roller slide 13. The direction of rotation of the roller slide 13 is indicated by an arrow 14. The end of the roller slide 13 has a pin 15. On the housing 12 nozzles 16 are attached, via which, as indicated by arrows 17, liquid medium is supplied. At the bottom of the housing 12, a slot nozzle 18 can be seen, from which a spray curtain 19 emerges. The spray curtain 19 strikes a material web 22 whose direction of movement is symbolized by an arrow 23. The spray curtain 19 generates a job grid 24 on the web 22, which shows substantiallyturnscope transverse to the direction of movement. Within the lines, individual lines are visible in the direction of movement. It follows that the slot nozzle 18 comprises a diaphragm with individual outlet openings whose distance determines the distance of the individual lines transverse to the direction of movement of the web 22.
  • the roller slide 13 has on its cylindrical surface 35 a plurality of first axial grooves 27 in which radial bores 28 end.
  • the first axial grooves 27 are on the radial bores 28 of a inner cavity supplied with liquid medium.
  • the inner cavity in turn is supplied via a circumferential groove 25 with radial bores 26 with liquid medium.
  • the circumferential groove 25 communicates with one of the radial connection 16 in the housing 12 in open connection.
  • Another circumferential groove with radial holes of the same kind is located at the opposite end of the roller slide.
  • Parallel to the first axial grooves 27 are in the direction of rotation relative to these trailing second axial grooves 31 with a smaller number of radial bores 32.
  • closure strips 33 are used, which are supported by coil springs 34 elastic.
  • the radial bores 28 are supplied via an inner cavity 29 with liquid medium.
  • the axial grooves 27 are constantly filled with medium.
  • the axial grooves 31 are supplied via the radial bores 32 with small amounts of liquid medium, which should ensure a low throughput to prevent hardening of the medium in the axial grooves 31 and thus setting the sealing strips 33.
  • the closure strips 33 are supported by helical compression springs 34 in the axial grooves 31 to abut with pre-pressure on the surface of the roller chamber 20.
  • the housing 12 encloses the roller slide 13 with a cylindrical roller chamber 20, from which radial bores 21 lead to the slot nozzle 18.
  • an outlet opening 30 is designated, which communicates with one of the feed holes 21 in the housing 12.
  • FIG. 5 details of Figures 2 and 4 shown in combination.
  • the housing 12 is shown cut away at the front, wherein the roller slide 13 is pulled out of its intended position to the front.
  • a bore 36 for the nozzle 16 and the circumferential groove 25 would lie with the radial bores 26 in a common axis normal plane.

Landscapes

  • Coating Apparatus (AREA)

Claims (9)

  1. Tête d'application (11) pour l'application de milieux liquides tels que des matières thermoplastiques liquéfiées ou des colles thermofusibles fondues sur une bande de matériau (22) mobile par rapport à la tête d'application, comprenant un logement (12), lequel logement comporte une chambre de cylindre (20) dans laquelle une vanne rotative (13) est montée de manière à pouvoir être entraînée en rotation, et comprenant une buse à fente (18) pour l'application d'un milieu liquide qui peut être commandée par la vanne rotative (13) et s'étend perpendiculairement à la direction de déplacement de la bande de matériau,
    la vanne rotative (13) présentant les caractéristiques suivantes :
    - un espace creux intérieur (29) vers lequel un milieu liquide peut être amené,
    - une surface cylindrique,
    - des premières rainures superficielles (27) dans la surface cylindrique, vers lesquelles un milieu liquide peut être amené et qui peuvent communiquer avec la buse à fente (18) en fonction de la position de rotation,
    - des orifices de sortie radiaux (28) menant de l'espace creux intérieur (29) dans les premières rainures superficielles (27),
    caractérisée par
    - des secondes rainures superficielles (31) dans la surface cylindrique, qui reçoivent des baguettes d'obturation (32) qui sont en contact avec la surface de la chambre de cylindre (20) sous l'effet de la pression d'alimentation, une seconde rainure superficielle (31) étant associée à chaque première rainure superficielle (27) de manière à ce que la seconde rainure superficielle (31) suive la première rainure superficielle lors de la rotation de la vanne rotative (13).
  2. Tête d'application selon la revendication 1,
    caractérisée par le fait que les secondes rainures superficielles (31) et les baguettes d'obturation insérées (32) occupent essentiellement la totalité de la surface cylindrique (35) entre deux premières rainures superficielles (27) respectives.
  3. Tête d'application selon la revendication 1,
    caractérisée par le fait que les rainures superficielles (27, 47, 67) sont exécutées en tant que rainures parallèles à l'axe.
  4. Tête d'application selon la revendication 2,
    caractérisée par des orifices de sortie radiaux (32) pour un milieu liquide menant de l'espace creux intérieur (29) dans les secondes rainures superficielles (31).
  5. Tête d'application selon l'une des revendications 1 à 4,
    caractérisée par le fait qu'une tubulure (16) est prévue dans le logement au niveau d'au moins une extrémité du logement (12) et un canal annulaire qui est relié à la tubulure dans le logement est exécuté entre la vanne rotative (13) et la chambre de cylindre (20), et
    par le fait que des orifices d'alimentation radiaux (26) dans la vanne rotative (13) sont exécutés dans le plan du canal annulaire, lesquels orifices sont reliés à l'espace creux intérieur (29) et servent à l'alimentation d'un milieu liquide.
  6. Tête d'application selon l'une des revendications 1 à 4,
    caractérisée par le fait qu'un orifice axial est exécuté dans la vanne rotative (13) au moins au niveau d'une extrémité, lequel orifice axial est relié à l'espace creux intérieur (29) et sert à l'alimentation d'un milieu liquide, l'orifice axial étant exécuté notamment dans un tourillon (15) sortant axialement du logement.
  7. Tête d'application selon la revendication 5,
    caractérisée par le fait que le au moins un canal annulaire est formé par une rainure annulaire dans la surface de la chambre de cylindre.
  8. Tête d'application selon la revendication 5,
    caractérisée par le fait que le au moins un canal annulaire est formé par une rainure circonférentielle (25) sur la vanne rotative (13).
  9. Tête d'application selon l'une des revendications 1 à 8,
    caractérisée par le fait qu'un écran pourvu d'une pluralité d'ouvertures de sortie pour un milieu liquide est inséré dans la buse à fente (18), les ouvertures de sortie (36) étant reliées individuellement à des orifices d'alimentation radiaux (21) dans le logement (11) depuis la chambre de cylindre (20).
EP03007191A 2002-04-13 2003-03-29 Tête d'application rotative Expired - Fee Related EP1352691B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10216356 2002-04-13
DE10216356A DE10216356C1 (de) 2002-04-13 2002-04-13 Rotationskopf mit Abstreifleisten

Publications (3)

Publication Number Publication Date
EP1352691A2 EP1352691A2 (fr) 2003-10-15
EP1352691A3 EP1352691A3 (fr) 2006-06-07
EP1352691B1 true EP1352691B1 (fr) 2010-05-26

Family

ID=27762982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03007191A Expired - Fee Related EP1352691B1 (fr) 2002-04-13 2003-03-29 Tête d'application rotative

Country Status (4)

Country Link
US (1) US6866209B2 (fr)
EP (1) EP1352691B1 (fr)
DE (2) DE10216356C1 (fr)
ES (1) ES2342051T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110624769A (zh) * 2019-09-11 2019-12-31 郭存洪 一种制造柔性电路板用的基材涂胶机

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030207206A1 (en) * 2002-04-22 2003-11-06 General Electric Company Limited play data storage media and method for limiting access to data thereon
DE10320813B4 (de) * 2003-05-08 2005-12-22 Itw Dynatec Gmbh Vorrichtung zum flächigen Auftragen von viskosen Medien
US7097710B2 (en) * 2004-04-29 2006-08-29 The Procter & Gamble Company Extrusion applicator having rotational operability
DE102004030769A1 (de) * 2004-06-25 2006-01-12 Raumedic Ag Mikrodosiersystem sowie Verfahren zum dosierten Benetzen eines Substrats
DE102004034422B4 (de) * 2004-07-15 2006-12-28 Nordson Corp., Westlake Auftragskopf mit im Gehäuse federnd abgestütztem Düsenblock
DE102004058542A1 (de) * 2004-12-03 2006-06-08 Nordson Corporation, Westlake Rotationsauftragskopf und Etikettieranlage zum Aufbringen von Etiketten
US7771556B2 (en) * 2005-07-01 2010-08-10 Nordson Corporation Apparatus and process to apply adhesive during labeling operations
DE102008026147A1 (de) 2008-05-30 2009-12-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Breitschlitzdüse
JP5786193B2 (ja) * 2010-12-06 2015-09-30 兵神装備株式会社 吐出幅可変装置、及び塗布装置
DE102011082631B4 (de) 2011-09-13 2017-04-27 VW-VM Forschungsgesellschaft mbH & Co. KG Intermittierendes Beschichten von bewegten Oberflächen
EP3356057A4 (fr) * 2015-09-29 2019-05-29 Kimberly-Clark Worldwide, Inc. Applicateur d'adhésif à vanne rotative
SG11201810560XA (en) * 2016-05-31 2018-12-28 3M Innovative Properties Co Cam die coating systems
US20180030678A1 (en) * 2016-08-01 2018-02-01 Specialized Pavement Marking, Inc. Striping apparatus
IT201700090917A1 (it) * 2017-08-04 2019-02-04 Tecno Italia S R L Attrezzatura per la smaltatura di manufatti
EP3894092A1 (fr) 2018-12-14 2021-10-20 Tecno - Italia S.R.L. Équipement pour l'émaillage d'articles manufacturés
CN113289836B (zh) * 2021-05-25 2022-01-21 合壹(上海)展览有限公司 一种能够适用于不同形状板材的环保建材涂覆系统
EP4321258A1 (fr) 2022-08-12 2024-02-14 Tecnocer Italia S.r.l. Piece d'equipement de glaçage d'articles manufacturés
CN115489168B (zh) * 2022-10-20 2023-08-08 温岭市森林包装有限公司 瓦楞纸板生产线

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US3332580A (en) * 1965-09-20 1967-07-25 Lockwood Tech Fluid applicator valve
EP0286755B1 (fr) * 1987-04-16 1995-03-15 Yasui Seiki Co., Ltd. Appareillage d'alimentation pour une coucheuse
US4968534A (en) * 1989-01-17 1990-11-06 Npd Corp. Method and apparatus for pattern impregnation of a porous web
US5360516A (en) * 1992-11-12 1994-11-01 Philip Morris Incorporated Application of fluidized material to a substrate using intermittent charges of compressed air
DE19757238C2 (de) * 1997-12-22 1999-11-25 Wolfgang Puffe Rotationsauftragskopf

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110624769A (zh) * 2019-09-11 2019-12-31 郭存洪 一种制造柔性电路板用的基材涂胶机

Also Published As

Publication number Publication date
EP1352691A3 (fr) 2006-06-07
ES2342051T3 (es) 2010-07-01
US6866209B2 (en) 2005-03-15
DE50312733D1 (de) 2010-07-08
DE10216356C1 (de) 2003-09-18
EP1352691A2 (fr) 2003-10-15
US20030230647A1 (en) 2003-12-18

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