EP0245373B1 - Dispositif pour acheminer ou appliquer par large diffusion des substances coulantes - Google Patents

Dispositif pour acheminer ou appliquer par large diffusion des substances coulantes Download PDF

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Publication number
EP0245373B1
EP0245373B1 EP19860906707 EP86906707A EP0245373B1 EP 0245373 B1 EP0245373 B1 EP 0245373B1 EP 19860906707 EP19860906707 EP 19860906707 EP 86906707 A EP86906707 A EP 86906707A EP 0245373 B1 EP0245373 B1 EP 0245373B1
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EP
European Patent Office
Prior art keywords
pressurised chamber
chamber
gap
application
outlet gap
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
EP19860906707
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German (de)
English (en)
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EP0245373A1 (fr
Inventor
Johannes Zimmer
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/08—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating from outlets being in, or almost in, contact with the textile material

Definitions

  • the invention relates to a device for wide distribution or for the application of flowable substances to sheet-like material or flat surfaces through an application gap or through rows of holes or slots with or without the use of templates.
  • coating, impregnating, coloring or pattern-overprinting or full-surface applications using round or flat stencils require wet application quantities that are in a very wide range from approximately 20 g / m2 to approximately 2000 g / m2.
  • the substances to be applied have very different viscosities, which range from aqueous-liquid to highly consistent-pasty.
  • the working speed is between about 3 m to 300 running meters / min.
  • the working widths can be very different and can be between about 50 and 500 cm. There are a large number of designs, but these are mostly restricted to a certain type of production.
  • the object of the present invention is to use the pressure space simultaneously for a width distribution, the counterpressure system being designed as a multiple quantity throttle and at the same time as a width distribution device.
  • channel-shaped guides are limited by the surface of the rod or a rod-shaped displacement body and the walls of the overpressure cavity.
  • the inventive measure forces the substance supplied to flow into the area between the inner wall of the positive pressure cavity and the outer surface of the displacement body used, and grooves or other uniform shapes are used as guides on the surface of the body used or on the inner surface of the positive pressure cavity; ie the introduced substance is distributed evenly over the exit width on the one hand and finally emerges from a nozzle-shaped exit gap.
  • FIG. 1 shows an embodiment of the invention as an application device with a magnetic pressure on the web.
  • FIG. 2 and 3 are sections through the insert body of the application device according to FIG. 1.
  • FIG. 4 is another embodiment in which an application device according to the invention interacts with a counter roller.
  • 5 shows an embodiment of the invention in which the application device is used as an air knife.
  • 6 shows an embodiment in which the substance to be applied is applied with the interposition of a structured roller.
  • Figure 7 is another embodiment of the invention for round or flat screen printing.
  • FIG. 8 shows a further embodiment of the invention, likewise FIG. 9.
  • FIG. 10 shows an embodiment of the invention with application roller.
  • 11 shows an embodiment of the invention with a device for reducing the application width.
  • 12 and 13 are modified embodiments.
  • the device for coating, dyeing or printing webs 4 consists of a hollow body 9, in which a distribution space 6 and a throttle space 7 are provided.
  • the substance to be applied to the material web 4 is introduced into the distribution space 6 via a feed and there is put under a pressure which, for example, is considerably coarser than is necessary for the application process.
  • the substance flows via the connecting line 24 into the throttle chamber 7, where a displacement body 1 is inserted, flows on the surface of this displacement body 1 along and arrives at the exit gap 2, via which the substance exits onto the web 4, possibly with the interposition of a template 3.
  • FIG. 2 and 3 each show a section AA of FIG. 1, wherein according to FIG. 2 the displacement body 1 has a large thread 10 on its surface, whereas in the embodiment according to FIG. 3 the displacement body 1 is wound with a wire 11 .
  • the displacement body 1 can be replaced and thus adapted to the relevant circumstances.
  • Back pressure and flow channels for the substance to be applied are formed in the throttle chamber 7 by the wall of the throttle chamber 7 and the thread 10 or the wire winding 11.
  • the displacement body 1 is thus a simply designed metering device, since only the substance flowing through the counterpressure and flow channels reaches the outlet gap 2. At the same time, the width distribution of the substance is also corrected.
  • the thread 10 can be designed differently and that the winding with the wire 11 can be coarser or finer as desired, or that different wire thicknesses can be used.
  • the material web 4 can lie on a table, a bar or a conveyor belt. In addition, it is possible to move either the web or, when using a flat template 3, the entire device. In order to improve the pressure on the exit area on the web 4, inserts 8 made of magnetizable material can be present, which can be attracted by a magnet, not shown, located below the web 4.
  • the device according to the invention is opposite a counter roller 13, the web of material then being passed through the gap 16 between the outlet gap 2 and the counter roller 13.
  • the device can either be stationary or, as shown, have an oscillating suspension 12.
  • the device can then have a roller shape or other
  • the surface adapted to the counter surface lies floating on the substance layer emerging from the exit gap 2, and irregularities in the web 4 can be compensated, for example by seams and thickening.
  • the gap 16 is then preferably slightly wedge-shaped in order to be able to press the substance into the web.
  • a roller bar 14 made of a magnetizable material can be inserted into the active surface of the housing 9, this roller bar 14 being pressed against by the magnet 15.
  • FIG. 5 shows a further embodiment of the invention.
  • the web 4 is guided over two rollers 17, 18 and the device according to the invention engages in the space between these two rollers 17, 18.
  • the closed system also makes it possible to coat and / or penetrate the web 4 from below or obliquely from below.
  • a pressure spring 19 is also provided.
  • the device can also be located above the web 4.
  • the device acting as an air knife can act on a horizontally guided web and also on a vertically or obliquely guided web. It is also possible to guide the web in a concave recess. If you want to achieve a double-sided application on the web 4, you can use two devices according to the invention, which are either opposite or offset from each other.
  • the substance emerging from the exit nip 2 is first applied to a transfer roller 20, the surface of which may be hard or soft. However, the surface of this transfer roller is preferably structured, which is indicated by the covering 21 in FIG. 6.
  • the transfer roller 20 takes the metered substance applied to its surface and brings it to the point of contact with a counter roller 13, where the substance is delivered to the web 4. If the transfer roller 20 is at least partially made of a magnetizable material, the transfer roller 20 can be pressed by means of the magnet 15. Basically, there is the possibility of working like a foulard without a trough.
  • FIG. 7 a further embodiment of the invention is shown in FIG. 7.
  • the device according to the invention is located in a round template 3, via which the substance is introduced into the web 4.
  • a table 22 is indicated as the counter surface, to which a magnet 15 can also be assigned.
  • the end 25 of the housing 9 containing the outlet gap 2 is specially designed.
  • a gusset space 26 is formed between the counter roll 13 and a press-in roll 29 resting on this counter roll 13 and the end 25 of the housing 9 is now designed such that it projects into this gusset space 26. That is, the surfaces delimiting the outlet gap 2 are adapted to the surfaces of the two rollers 13 and 29 and are approximately concentric with these two rollers. However, a gap is formed in each case between the opposing surfaces, the gap between the counter roller 13 and the associated surface of the housing 9 possibly being of a slightly wedge shape.
  • the press-in roller 29 can consist of a magnetizable material or contain inserts made of magnetizable material, so that this roller is pressed against the surface of the counter-roller 13 by means of the magnet 15.
  • a pressure zone is formed in the gusset space 26 and the material is then pressed via the press-in roller 29 into the web running on the counter-roller 13. The application is completely uniform in every respect.
  • FIG. 9 Another embodiment of the invention is shown in FIG. 9.
  • the displacement body 1 is formed in the housing 9 as a hollow body, the interior 28 of which serves for the substance supply.
  • this space is also the high-pressure distribution space, that is to say corresponds to space 6 in the other exemplary embodiments.
  • the material is supplied via this interior space 28 and enters through openings 30 into a transverse channel 27, from where the material is then directed into the throttle space 7.
  • the outlet nip 2 opens out relative to an application roller 30.
  • This application roller 30 is largely enclosed by an accommodation 32 of the housing 9 and is supported on the counter roller 13, the point of contact of the application roller 30 on the counter surface 13 with respect to the axis of the magnet 15 is offset so that the magnetic forces act obliquely on the applicator roller made of magnetizable material. It is of course also possible to have only one corresponding, magnetizable coating on the application roller 30.
  • the housing 9 can be pivoted here by the angle 35 and can also be lifted off completely, so that the application roller 30 is then also removed from the counter roller 13. It is advantageous if the surface of the application roller 30 is structured.
  • a metering application system without a liquor trough is thus obtained, with the liquid being supplied in a quantity-controlled manner by means of a metering pump or only by means of a pressure and counter-pressure system.
  • the liquid supply pressure is not the same as the application pressure.
  • the application pressure results from the magnet system, possibly its own weight and from the surface structure.
  • a closure rod 34 is inserted from each end of the exit gap 2, which is preferably located in a recess 36.
  • the locking rod 34 can carry two lamellae 33 which then fill the remaining order gap, on the one hand up to the throttle space 7 and on the other hand up to the mouth, e.g. on the application roller 30.
  • the overpressure space 7 has a circular cross section and a cylindrical body 41 encloses.
  • This cylindrical body 41 can in turn consist of a tube and be threaded or wound with wire. Its position is fixed by one or more screws 42 which simultaneously press it against the exit gap 44. The straightness of the body 41 used can also be adjusted with the aid of the screws 42.
  • the substance to be applied is supplied via lines 5.
  • FIG. 13 shows a further embodiment.
  • the overpressure space 7 is rectangular and a triangular rod 43 is inserted in it, which in turn is pressed against the outlet gap 44 by screws 42. It is not absolutely necessary for a single exit gap to be provided, but there may also be a gap zone which is formed by slots of a predetermined length, the slots being offset from one another. If the overpressure space 7 is delimited by a slit tube made of magnetizable material, this device can already be used as a doctor device. It is possible to attach sliding and wear strips to this pipe and to attach the pipe in an oscillating manner.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coating Apparatus (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Dans un procédé et un dispositif pour déposer une couche régulière d'une substance coulante au moyen d'une fente de sortie (2), on achemine ladite substance dans une chambre de distribution (6) puis dans une chambre d'étranglement (7) dans laquelle on introduit un corps (1) cylindrique présentant des guidages en forme de canal.

Claims (23)

1. Dispositif pour acheminer ou appliquer, par large diffusion, des substances coulantes sur un matériau en forme de feuille continue ou des surfaces planes à travers un interstice d'application ou des séries de trous ou de fentes, du type où sont prévus une cavité fermée de surpression (6) s'étendant sur la largeur d'application, avec au moins une ouverture d'introduction (5) pour la substance d'application acheminée qui se trouve sous pression et dans cette cavité de surpression (6), un corps de refoulement en forme de tige qui repose contre les surfaces de la cavité de surpression (6 ou, respectivement, 7) caractérisé en ce que des guidages en forme de canal sont délimités par la surface du corps de refoulement (1) en forme de tige et les parois de la cavité de surpression (6).
2. Dispositif selon la revendication 1, caractérisé en ce qu'une seconde cavité de surpression (7) est prévue, parallèle à la cavité de surpression (6) et qui lui est reliée sur toute sa longueur, dans laquelle est placé le corps de refoulement (1) en forme de tige.
3. Dispositif selon la revendication 1, caractérisé en ce que le corps de refoulement (1) placé dans la cavité de surpression (6 ou, respectivement, 7) porte, à sa surface supérieure, un filetage (10) ou, respectivement, est de forme filetée.
4. Dispositif selon la revendication 1, caractérisé en ce que le corps de refoulement (1) agencé dans la cavité creuse de surpression est enroulé à sa surface supérieure d'un fil métallique, qui délimite les guidages en forme de canal.
5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le corps de refoulement (1) en forme de tige a la forme d'un tube qui est fixé au moyen de vis à l'intérieur de la cavité de surpression (6 ou, respectivement, 7).
6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la cavité de surpression (6 ou, respectivement, 7) est formée d'un tube, qui présente au moins une rangée de trous ou bien une fente continue.
7. Dispositif selon la revendication 6, caractérisé en ce que la largeur de la fente est variable.
8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la cavité de surpression a une section transversale circulaire et en ce que dans cet espace est agencé un corps de refoulement de forme cylindrique.
9. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la cavité de surpression a une section transversale angulaire et dans celle-ci est agencé un corps de refoulement (1) en forme de tige ayant une section transversale angulaire.
10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la sortie de la cavité de surpression forme l'interstice d'application du dispositif.
11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le corps de refoulement agencé dans la cavité de surpression (6, 7) a la forme d'un corps creux, dont l'espace interne (28) sert d'espace de répartition qui est relié, par un canal transversal (27), à la cavité de surpression (6, 7).
12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que l'interstice de sortie (2) débouche sur un cylindre d'application (30) qui est partiellement entouré par un évidement (32) du boîtier (9) et repose sur un contre-­cylindre (37) en étant décalé relativement à l'axe des aimants (15), ainsi les forces magnétiques (31) agissent de biais vis-à-vis du sens du déplacement de la feuille de matériau (4).
13. Dispositif selon la revendication 12, caractérisé en ce que le boîtier (9) est configuré en étant angulairement mobile (angle 35) et en étant levable.
14. Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que dans la zone de l'interstice de sortie (2) sont prévues des garnitures (8) en un matériau magnétisable.
15. Dispositif selon l'une quelconque des revendications 1 à 14, caractérisé en ce que la zone de l'interstice de sortie (2) est formée en un matériau magnétisable.
16. Dispositif selon l'une quelconque des revendications 1 à 15, caractérisé en ce qu'au moins une surface délimitant l'interstice de sortie (2) est convexe.
17. Dispositif selon l'une quelconque des revendications 1 à 16, caractérisé en ce qu'au moins une surface délimitant l'interstice de sortie (2) est concave.
18. Dispositif selon l'une quelconque des revendications 1 à 17, caractérisé en ce que l'interstice de sortie (2) est mobile vis-à-vis de la surface opposée (4, 13).
19. Dispositif selon l'une quelconque des revendications 1 à 18, caractérisé en ce que les surfaces délimitant l'interstice de sortie (2) sont adaptées aux surfaces supérieures de deux cylindres en contact mutuel (13, 29) et dépassent dans l'espace en coin (26) formé entre les cylindres (13, 29), et entre les surfaces en vis-à-vis est formé un interstice (16) qui, le cas échéant, est en forme de cale.
20. Dispositif selon la revendication 19, caractérisé en ce que l'un des deux cylindres (13, 29) en contact mutuel est configuré en tant que contre-cylindre (13) soutenant la feuille de matériau (4) et l'autre en tant que cylindre de pression (29) et le cylindre de pression (29) peut, le cas échéant, être pressable magnétiquement contre le contre-cylindre (13).
21. Dispositif selon l'une quelconque des revendications 1 à 20, caractérisé en ce que dans l'interstice de sortie (2) est prévu un évidement (36) dans lequel est agencée une barre d'obturation (34).
22. Dispositif selon la revendication 21, caractérisé en ce que la barre d'obturation (34) présente un corps principal épaissi sur lequel sont agencées des lamelles (33) qui s'étendent dans les segments de l'interstice de sortie vers l'embouchure contre l'espace d'étranglements (7).
23. Dispositif selon l'une quelconque des revendications 1 à 22, caractérisé en ce que l'interstice de sortie (2) est fermé sur toute sa longueur entre l'espace de surpression (6, 7) et l'embouchure, par la barre d'obturation (34).
EP19860906707 1985-11-18 1986-11-17 Dispositif pour acheminer ou appliquer par large diffusion des substances coulantes Expired - Lifetime EP0245373B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT336085A AT392985B (de) 1985-11-18 1985-11-18 Verfahren und einrichtung zur abgabe eines gleichmaessigen filmes oder einer schicht
AT3360/85 1985-11-18

Publications (2)

Publication Number Publication Date
EP0245373A1 EP0245373A1 (fr) 1987-11-19
EP0245373B1 true EP0245373B1 (fr) 1991-02-27

Family

ID=3549349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860906707 Expired - Lifetime EP0245373B1 (fr) 1985-11-18 1986-11-17 Dispositif pour acheminer ou appliquer par large diffusion des substances coulantes

Country Status (4)

Country Link
EP (1) EP0245373B1 (fr)
JP (1) JPS62502625A (fr)
AT (1) AT392985B (fr)
WO (1) WO1987003020A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441805A1 (de) * 1994-11-24 1996-05-30 Fleissner Maschf Gmbh Co Vorrichtung zum gleichmäßigen Auftragen einer minimalen Menge eines Behandlungsfluids auf eine textile Warenbahn

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155540A (en) * 1959-06-15 1964-11-03 Landers Corp Apparatus for the extrusion coating of fabric or like materials
AT289022B (de) * 1968-12-10 1971-03-25 Peter Zimmer Vorrichtung zum Auftragen einer flüssigen Farbmasse auf insbesondere textile Flächengebilde
CH522447A (de) * 1970-04-10 1972-06-30 Kohler Max Vorrichtung zur Behandlung platten- und bahnenförmigen Materials mittels Flüssigkeiten
US4139662A (en) * 1977-11-14 1979-02-13 Armstrong Cork Company Method of and apparatus for metering fast-reacting saturant onto sheet material
US4267795A (en) * 1980-05-09 1981-05-19 Crown Zellerbach Corporation Liquid distributing apparatus
GB2126924B (en) * 1982-09-13 1987-08-19 Dexter Chemical Corp Foam finishing fabrics
AT376175B (de) * 1982-10-07 1984-10-25 Johannes Zimmer Vorrichtung zum gleichmaessigen auftragen von fliessfaehigen medien
DE3319803A1 (de) * 1983-06-01 1984-12-06 Mathias 4815 Schloss Holte Mitter Auftragsvorrichtung zum auftragen von verschaeumter flotte
EP0147536B1 (fr) * 1983-10-07 1990-02-07 Johannes Zimmer Appareil pour étendre régulièrement un écoulement liquide sur une largeur donnée
AT379526B (de) * 1983-10-07 1986-01-27 Johannes Zimmer Einrichtung zum gleichmaessigen bzw. regelmaessigen verteilen fliessfaehiger medien in vorgegebener breite
US4502304A (en) * 1984-05-01 1985-03-05 Dexter Chemical Corporation Foam applicator for wide fabrics

Also Published As

Publication number Publication date
JPS62502625A (ja) 1987-10-08
EP0245373A1 (fr) 1987-11-19
AT392985B (de) 1991-07-25
WO1987003020A1 (fr) 1987-05-21
ATA336085A (de) 1990-12-15

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