EP0152921B1 - Dispositif de revêtement pour des matériaux en feuilles - Google Patents

Dispositif de revêtement pour des matériaux en feuilles Download PDF

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Publication number
EP0152921B1
EP0152921B1 EP85101631A EP85101631A EP0152921B1 EP 0152921 B1 EP0152921 B1 EP 0152921B1 EP 85101631 A EP85101631 A EP 85101631A EP 85101631 A EP85101631 A EP 85101631A EP 0152921 B1 EP0152921 B1 EP 0152921B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
pump
slot
arrangement
coating
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
Application number
EP85101631A
Other languages
German (de)
English (en)
Other versions
EP0152921A3 (en
EP0152921A2 (fr
Inventor
John Mladota
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6228282&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0152921(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT85101631T priority Critical patent/ATE46633T1/de
Publication of EP0152921A2 publication Critical patent/EP0152921A2/fr
Publication of EP0152921A3 publication Critical patent/EP0152921A3/de
Application granted granted Critical
Publication of EP0152921B1 publication Critical patent/EP0152921B1/fr
Expired 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
    • 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

Definitions

  • the invention relates to a device for applying a thin layer of a coating material to a web of material running over a counter-pressure roller, with a nozzle slot with a fixed inlet nozzle lip and a slot nozzle device designed as a rotatable doctor rod, a storage container for the coating material and a supply channel between the Storage container and the nozzle slot, which has a sufficient width to continuously supply the coating material over the coating width to the nozzle slot and apply it there.
  • a device has become known, for example, from DE-C-3100101.
  • US-A-4 333 420 discloses a device for applying one or more thin strips of glue to one or more webs of material running over a counter roller.
  • Each thin strip of glue is applied by means of a dispensing nozzle in its own housing, in which a conventional gear pump with a driven and a rotating pump gear are fixedly arranged.
  • Each housing can be moved transversely and perpendicular to the material web, the gear pumps are driven together by means of a rod with a non-circular cross section proportional to the material web speed, the rod can be easily removed from it to stop each gear pump.
  • US-A-2474254 has disclosed a device for impregnating material webs with liquids, which has a gear pump arrangement extending over the material web width in a feed channel between a storage container and a slot.
  • the gear pump arrangement has a plurality of pump sections, each with two pump gears, which sit on two continuous shafts, the two shafts being mounted in short spacers between the pump gears.
  • the invention has for its object to provide a coating device of the type described above, with which a sufficient, flawless and uniform supply of coating material is ensured to the nozzle slot over the entire desired coating width. At the same time, both a simple adaptation of the coating device to different coating widths and a quick and easy cleaning of the slot nozzle arrangement when converting to different coating materials are to be ensured.
  • Such an arrangement makes it possible to provide a sufficient amount of coating material uniformly distributed over the coating width at the nozzle slot, the number of pump sections being selected in accordance with the desired coating width and being able to be changed in a simple and user-friendly manner.
  • a simple, quick and thorough cleaning of the slot nozzle arrangement can be carried out when changing the coating material. The latter is particularly important if, due to the driving of small batches, it has to be converted relatively frequently.
  • the driven pump gearwheels are advantageously connected to one another in a drive-proof manner in the region of the spacers by way of axially engaging axial connecting pieces.
  • the driven pump gearwheels can thus be driven by a single drive motor.
  • the spacers are expediently designed as coal stores.
  • the axial length of the pump gears is advantageously about twice the axial length of the spacers. This results in a completely uniform distribution of the coating material along the nozzle slot.
  • the pump gearwheels are advantageously driven at about 10 to 12 rpm in current and customary coating processes.
  • heating or cooling channels extending over the coating width can advantageously be provided in the area of the feed channel and the gear pump arrangement, which ensure good heat transfer within the slot nozzle device.
  • the walls of the storage container are expediently heated, in particular for the processing of coating hotmelts.
  • a rod-shaped round slide valve closure which closes the supply channel is advantageously arranged, the closing rod of the round slide valve closure being expediently mounted under the supply channel near the nozzle lips.
  • the device according to the invention for applying a thin layer of a coating material shown in FIGS. 1 and 2 in a preferred embodiment has a counter-pressure roller 1, which is covered with rubber or hard rubber. A material web 2 to be coated is guided over the counter-pressure roller 1 in the direction of arrow A.
  • a slot nozzle device 3 with a fixed inlet and outlet nozzle lip of the nozzle slot 4 is provided on one side of the counter-pressure roller 1.
  • the incoming nozzle lip 5 of the nozzle slot 4 is fixed, the outgoing nozzle lip 6 of the nozzle slot 4 is designed as a rotatable doctor rod 6.
  • Material webs to be coated are, for example, paper webs, plastic films, metal foils, fabric webs and combinations of such material webs.
  • the material web can be an aluminum foil with a thickness of 0.008 mm, 0.012 mm, 0.02 mm and up to 0.12 mm.
  • Smooth, coated or creped papers from 40 to 120 g / m 2 are suitable as paper webs, plastic films from 40 to 120 m ⁇ thick, biaxially oriented, so-called oriented polypropylene films from 30 to 120 rn ⁇ thick and polyester films in the same thickness range.
  • hard PVC films and monomeric as well as polymer-softened PVC films can be processed as material webs, and, for example, carpet laying tapes and dressing materials as fabric webs.
  • Coating materials include paraffins and microcrystalline waxes with processing temperatures between 75 ° C and 100 ° C with application quantities between 4 and 40 g / m 2. Also possible are coating hotmelts consisting of ethyl vinyl acetate copolymers mixed with paraffin and resins at processing temperatures between 140 ° C and 190 ° C for the surface finishing of packaging material. Hot melt pressure sensitive adhesives used have processing temperatures between 140 ° C and 190 ° C with application quantities between 12 and 40 g / m 2 , while thermoset adhesives are processed at temperatures from 70 ° C to 80 ° C and application quantities from 40 g / m 2 . Polyurethane glue, consisting of two components, is mixed shortly before coating.
  • Further coating materials are aqueous emulsions and dispersions as a PVC coating at room temperature.
  • Acrylic adhesives as aqueous dispersions with coating also at room temperature various starch adhesives that are processed at temperatures from 70 ° C to 90 ° C, adhesives and coating compositions that are dissolved in organic solvents and processed at room temperature and finally cold glue based on PVC Polyvinyl alcohol.
  • Coating material 7 is located in a storage container 8, which can be heated by heating pipes 9. Through a feed channel 10 running over the greatest coating width, the coating material 7 is fed under the force of gravity to a gear pump arrangement 12 also running over the coating width, and from there under the pumping action of the gear pump arrangement 12 through a further feed channel 11 running over the greatest coating width is fed to the nozzle slot 4.
  • the gear pump arrangement 12 has a plurality of pump sections 13, each with a driven pump gear 14 and a rotating pump gear 15. Spacers 16, which support the pump gear wheels 13, 14, are arranged between the pump sections 13. Both the pump sections 13 and the spacers 16 are arranged in the slot nozzle device 3 so that they can be easily removed in order to convert and clean the slot nozzle arrangement. An adaptation to different coating widths takes place by inserting a corresponding number of pump sections 13 and spacers 16 into the slot nozzle arrangement.
  • the pump gearwheels 14, 15 are mounted in the spacers 16 via axle stubs 17 on both sides. Furthermore, the driven pump gearwheels 14 are connected to one another in a drive-proof manner in the area of the spacers 16 by way of axially engaging axial connecting pieces 18, it being possible for all pump sections 13 to be driven jointly from the side 19 of the gear pump arrangement 12, preferably at about 10 to 12 rpm.
  • the spacers 16 are preferably designed as coal bearings.
  • the slot nozzle device 3 is designed such that it can be folded open with respect to a plane running through the central longitudinal plane 20 between the pump gear wheels 14, 15, as a result of which the conversion and cleaning of the slot nozzle device 3 can be carried out in a particularly simple and user-friendly manner.
  • the axial length of the pump gearwheels 14, 15 is advantageously approximately twice the axial length of the spacers 16, which in any case ensures a uniform distribution of the coating material 7 along the length of the nozzle slot 4.
  • heating or cooling ducts 21 can expediently be provided over the coating width in order to ensure good heat transfer.
  • a closing rod 22 of a rod-shaped circular slide valve closing the feed channel 11 is arranged under the feed channel 11 in the vicinity of the nozzle lips 5, 6.
  • This circular slide valve closure is not only advantageous when retrofitting and cleaning the slot nozzle device 3, but also ensures that a coating without coating can be applied with the slot nozzle device described.

Landscapes

  • Coating Apparatus (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Fats And Perfumes (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Seal Device For Vehicle (AREA)
  • Glass Compositions (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Soil Working Implements (AREA)

Claims (9)

1. Dispositif pour appliquer une couche mince d'un matériau de revêtement (7) sur une bande de matière (2) se déplaçant sur un cylindre de contre- pression (1), comprenant un dispositif à buse à fente (3) présentant une fente de buse (4) avec une lèvre de buse (5) fixe rentrante et une lèvre de buse (6) susceptible d'être déplacée et réalisée sous la forme d'une barre de raclage tournante, avec un réservoir de réserve (8) pour le matériau de revêtement (7), et un canal d'alimentation (10, 11) situé entre le réservoir de réserve (8) et la fente de buse (4) et présentant une largeur suffisante pour pouvoir amener le matériau de revêtement (7) de manière continue à la fente de buse (4), sur la largeur du revêtement, et l'y appliquer, caractérisé en ce que
- le dispositif présente dans le canal d'alimentation (10, 11) un agencement de pompe à roues dentées (12) s'étendant sur la largeur du revêtement,
- l'agencement de pompe à roues dentées (12) présente plusieurs sections de pompe (13), chacune avec deux roues dentées de pompe (14, 15) et, entre les sections de pompes (13), de courtes pièces d'écartement (16) maintenant les roues dentées de pompe (14, 15) à distance et constituant des paliers,
- le canal d'alimentation (11) situé entre l'agencement de pompe à roues dentées (12) et la fente de buse (4) est ininterrompu sur la largeur du revêtement et réalisé avec une longueur qui est un multiple de sa hauteur,
- les roues dentées de pompe (14, 15) sont montées de manière facilement amovible, avec des moignons d'axe (17), dans les pièces d'écartement (16),
- les roues dentées de pompe (14, 15) et les pièces d'écartement (16) sont réalisée de manière facilement amovible,
- et le dispositif de buse à fente (3) présente deux parties, susceptibles d'être ouvertes autour des roues dentées de pompe.
2. Dispositif selon la revendication 1, caractérisé en ce que les roues dentées de pompe (14) entraînées sont reliées ensemble en un entraînement rigide, par ajustement de forme dans des pièces de liaison d'axe (18) les entourant situées dans la zone des pièces d'écartement (16).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les pièces d'écartement (16) sont réalisées sous la forme de paliers au carbone.
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que la longueur axiale des roues dentées de pompe (14, 15) est environ le double de la longueur axiale des pièces d'écartement (16).
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les roues dentées de pompe (14, 15) sont entraînées à une vitesse de rotation d'environ 10 à 12 tours/min.
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que des canaux de chauffage et de refroidissement (21) sont prévus dans la zone du canal d'alimentation (10, 11) et de l'agencement à pompe à roues dentées (12), en s'étendant sur la largeur du revêtement.
7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que les parois du réservoir de réserve (8) sont chauffées.
8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce qu'une obturation à opercule rond, en forme de barre, obturant le canal d'alimentation (11) est disposée entre l'agencement à pompe à roues dentées (12) et les lèvres de buse (5, 6) du dispositif de buse à lèvre (3).
9. Dispositif selon la revendication 8, caractérisé en ce que la barre de fermeture (22) de l'obturation à opercule rond est montée au-dessous du canal d'alimentation (11) au voisinage des lèvres de buse (5, 6).
EP85101631A 1984-02-20 1985-02-14 Dispositif de revêtement pour des matériaux en feuilles Expired EP0152921B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101631T ATE46633T1 (de) 1984-02-20 1985-02-14 Beschichtungsvorrichtung fuer materialbahnen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843406099 DE3406099A1 (de) 1984-02-20 1984-02-20 Beschichtungsvorrichtung fuer materialbahnen
DE3406099 1984-02-20

Publications (3)

Publication Number Publication Date
EP0152921A2 EP0152921A2 (fr) 1985-08-28
EP0152921A3 EP0152921A3 (en) 1986-12-10
EP0152921B1 true EP0152921B1 (fr) 1989-09-27

Family

ID=6228282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101631A Expired EP0152921B1 (fr) 1984-02-20 1985-02-14 Dispositif de revêtement pour des matériaux en feuilles

Country Status (6)

Country Link
US (1) US4765272A (fr)
EP (1) EP0152921B1 (fr)
AT (1) ATE46633T1 (fr)
AU (1) AU568423B2 (fr)
DE (2) DE3406099A1 (fr)
FI (1) FI81733C (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839100A1 (de) * 1988-11-18 1990-05-23 Bematec S A Beschichtungsvorrichtung fuer materialbahnen
DE4121792A1 (de) * 1991-07-02 1993-01-07 Kolbus Gmbh & Co Kg Duesenauftragssystem
US5829647A (en) * 1996-07-23 1998-11-03 Nordson Corporation Metering gearhead dispensing apparatus having selectively positionable gear pumps
DE19722117C2 (de) * 1997-05-27 2000-09-07 Bematec S A Beschichtung poröser Träger
DE19755625A1 (de) * 1997-12-15 1999-07-01 Jagenberg Papiertech Gmbh Schlitzdüse zum Beschichten von Materialbahnen, insbesondere Papier- oder Kartonbahnen mit Pigmentstreichfarbe
DE19858653A1 (de) * 1998-12-18 2000-06-21 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zum Auftragen eines flüssigen oder pastösen Auftragsmediums auf einen laufenden Untergrund
DE19905318A1 (de) * 1999-02-09 2000-08-10 Voith Sulzer Papiertech Patent Vorrichtung zum Auftragen eines flüssigen oder pastösen Auftragsmediums auf einen laufenden Untergrund
ITBO20000742A1 (it) * 2000-12-22 2002-06-22 Gd Spa Metodo , gruppo ed unita' di gommatura di articoli
EP2768914B1 (fr) 2011-10-19 2018-11-21 3M Innovative Properties Company Articles pourvus de revêtements minces appliqués à chaud et leurs procédés de production

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1929877A (en) * 1928-08-03 1933-10-10 Harold Wade Apparatus for applying coatings to surfaces particularly to the surfaces of flexiblestrip material
US2474254A (en) * 1946-11-18 1949-06-28 Leroy A Kauffman Machine for impregnating material with liquids
US2988120A (en) * 1957-10-31 1961-06-13 Crandell Corp Apparatus for manufacturing a composite wood product
US3479989A (en) * 1967-11-28 1969-11-25 Eastman Kodak Co Extrusion coating apparatus
CH489807A (de) * 1969-04-16 1970-04-30 Siemens Ag Albis Verfahren und Einrichtung zur Prüfung der Verbindungen einer elektrischen Verdrahtung auf fehlende und überzählige Verbindungen
US3642181A (en) * 1969-06-05 1972-02-15 Valco Inc Vertical adhesive applicator head
US3906757A (en) * 1971-06-14 1975-09-23 Unitika Ltd Apparatus for continuous dyeing of yarns
US4333420A (en) * 1980-07-21 1982-06-08 Petri Nello J Glue applicator
DE3100101C2 (de) * 1981-01-05 1983-11-10 Bolton-Emerson, Inc., Lawrence, Mass. Vorrichtung zum Aufbringen einer dünnen Schicht eines Beschichtungsmaterials auf eine Materialbahn
IT8267442A0 (it) * 1982-04-05 1982-04-05 Rotomec Costr Mecc Dispositivo per spalmare una sostanza su di un materiale in nastro
JPS58207964A (ja) * 1982-05-31 1983-12-03 Nippon Furuuto Kk 接着剤塗布装置
US4550681A (en) * 1982-10-07 1985-11-05 Johannes Zimmer Applicator for uniformly distributing a flowable material over a receiving surface
US4534309A (en) * 1983-11-17 1985-08-13 Consolidated Papers, Inc. Paper coating apparatus

Also Published As

Publication number Publication date
DE3406099A1 (de) 1985-08-22
EP0152921A3 (en) 1986-12-10
EP0152921A2 (fr) 1985-08-28
FI850473A0 (fi) 1985-02-05
AU3848185A (en) 1985-08-29
US4765272A (en) 1988-08-23
FI850473L (fi) 1985-08-21
AU568423B2 (en) 1987-12-24
FI81733C (fi) 1990-12-10
DE3573219D1 (en) 1989-11-02
ATE46633T1 (de) 1989-10-15
FI81733B (fi) 1990-08-31

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