EP0517866B1 - Draining board for a device for applying a liquid film to a web of textile material - Google Patents

Draining board for a device for applying a liquid film to a web of textile material Download PDF

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Publication number
EP0517866B1
EP0517866B1 EP91920996A EP91920996A EP0517866B1 EP 0517866 B1 EP0517866 B1 EP 0517866B1 EP 91920996 A EP91920996 A EP 91920996A EP 91920996 A EP91920996 A EP 91920996A EP 0517866 B1 EP0517866 B1 EP 0517866B1
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EP
European Patent Office
Prior art keywords
strip
web
support surface
discharge
liquid
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
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EP91920996A
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German (de)
French (fr)
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EP0517866A1 (en
Inventor
Karl-Heinz Ahrweiler
Alfred Blasius
Wolfgang Kurschatke
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Eduard Kuesters Maschinenfabrik GmbH and Co KG
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Eduard Kuesters Maschinenfabrik GmbH and Co KG
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06BTREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/04Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by pouring or allowing to flow on to the surface of the textile material
    • D06B1/06Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by pouring or allowing to flow on to the surface of the textile material flowing along an inclined surface
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S68/00Textiles: fluid treating apparatus
    • Y10S68/90Foam treatment

Definitions

  • the invention relates to a device of the type corresponding to the preamble of claim 1.
  • Such devices are used for example in the dyeing of carpet webs.
  • the dyeing liquid is applied to the drainage plate, either by doctoring or by pouring, and runs off in a uniform layer over the drainage plate, which is inclined downward onto the web, and then from the lower edge of the drainage plate in a uniform film or veil onto the Merge web to pass, the fall height of which is about 0 - 10 cm, ie the lower edge of the drain plate occupies a position above the web that is between almost touching and a small height above the web. The height must not be so great that the veil becomes uneven again in the case and comes together to form individual thickened current threads or strands.
  • the amounts of dyeing liquid required for carpet dyeing can be metered with high accuracy onto the web of material passing under the discharge plate.
  • uniformity of the application there is a special uniformity of the lower edge of the drain plate and the flatness the drain plate required.
  • Even irregularities such as a badly ground rivet head or a welding spot give disturbances in the smooth flow of the liquid, which give rise to inhomogeneities in the falling liquid curtain and thus to visible streakiness of the color loss.
  • Carpet sheets have a width of up to 5 meters, and therefore the wearer of the drainage surface must span the carpet sheet in this width without sagging, without starting to vibrate during operation and without showing any ripple or other disturbance, in particular of the lower edge of the drainage surface.
  • the drain plate consists of a downwardly inclined guide surface, the Material web adjacent lower edge section is formed by a relatively thin stretched film, the lower edge of which forms the run-off edge for the thin liquid film.
  • the guide surface together with its thin film, forms a plane which is inclined in the required manner with respect to the horizontal.
  • a drain plate corresponding to the preamble of claim 1 is known, in which the strip is glued to the flat support surface of the carrier. Given the large working width of 5 m mentioned, the handling of such a strip during an adhesive process is not easy. Even the smallest defects in the thickness of the adhesive layer and other unevenness in the surface of the strip manifest themselves in the irregularity of the veil falling from the lower edge of the strip. In particular, in the case of a glued embodiment, the replacement, which may be necessary after the strip has been damaged, is made considerably more difficult, if not impossible, if reasonable effort is taken into account.
  • the invention has for its object to provide a reliable device of the generic type, in which the drain surface can be easily replaced.
  • the strip forming the run-off edge should therefore not only obtain its flatness from the forces exerted by the carrier, but should have such a bending stiffness that it inherently maintains a flatness given to it during manufacture even under the effect of the fastening on the carrier.
  • the selective introduction of forces through screws, rivets or welding spots should not occur. Rather, the magnetic holding forces acting perpendicular to the strip are to act in surface areas which occupy a larger part or all of the covering area of the strip and the wing.
  • connection without complex assembly and even more without destroying the strip only by overcoming forces that the strip does Maintain sufficient safety in operation in its position, but are not so large that the strip is damaged when it overcomes these forces, ie it is deformed differently than elastically.
  • the invention can be implemented in the manner set out in claim 2.
  • the magnets have a certain extent parallel to the wing and thus exert a large area of attraction on the ferromagnetic strip in their area.
  • the strip can expediently consist of a hard-rolled spring steel sheet with a thickness of 0.3 to 1 mm (claim 3).
  • This material has the advantage that it has very good flatness and, because of its very high yield strength, is not easily plastically deformed in the event of an impact or impact. The stresses are endured without permanent changes to the flat drainage surface.
  • a strip 10 of flat spring steel sheet of 0.5 mm thickness lies on the support surface 2 in a support area 9 which corresponds to approximately half the width of the strip 10. The strip 10 thus extends transversely to the web with its longitudinal direction. The lower half of the strip projects freely downward and forms a run-off area A with a horizontal straight edge 6 arranged just above the web 8.
  • a liquid is poured onto the drain surface A in the upper region of the drain surface A at 4, flows downwards in a uniform layer 5 corresponding to the slope of the drain surface A and falls from the lower edge 6 of the drain surface A in a freely falling film or veil 7 the web 8, which is conveyed past under the edge 6 in the direction of the arrow.
  • the strip 10 lies flat on the support surface 2 and is held on the support surface 2 by a series of permanent magnets 3 distributed along the support 1 and arranged on its rear side. Otherwise the strip 10 is not connected to the wing 2. However, the force of the magnets 3 is sufficient to hold the strip 10 in position with sufficient force during operation. To replace the strip 10, it can simply be removed from the wing 2 by exerting a correspondingly higher force.
  • the permanent magnets 3 exert their force on a surface which, in the exemplary embodiment shown in FIG. 2, makes up about 20% of the contact area 9. To ensure sufficient flatness of the force attack, its area portion should not fall below 10% here, as in the other exemplary embodiments.

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

Abstract

Described is a draining board (100) for a device designed to apply a liquid to a web of textile material (8). The draining board (100) includes a support (1) on which a strip (10) of planar material forming the draining surface (A) is held by magnets (3), by a vacuum or by an adhesive, for instance. The liquid is introduced at a point (4) on the draining surface (A), flows downwards and drops off the lower edge (6) of the strip (10) as a film (7) or curtain on to the textile material (8). The strip can be changed easily owing to the fact that it is held by magnets.

Description

Die Erfindung bezieht sich auf eine Vorrichtung der dem Oberbegriff des Anspruchs 1 entsprechenden Art.The invention relates to a device of the type corresponding to the preamble of claim 1.

Derartige Vorrichtungen werden beispielsweise beim Färben von Teppichbahnen benutzt. Die Färbeflüssigkeit wird auf die Ablaufplatte aufgebracht, sei es durch Aufrakeln, sei es durch Aufgießen, und läuft über die schräg auf die Warenbahn hinabgeneigte Ablaufplatte in einer gleichmäßigen Schicht ab, um dann von dem unteren Rand der Ablaufplatte in einem gleichmäßigen Film oder Schleier auf die Warenbahn Überzugehen, dessen Fallhöhe etwa 0 - 10 cm beträgt, d.h. der untere Rand der Ablaufplatte nimmt eine Position über der Warenbahn ein, die zwischen Fast-Berührung und einer geringen Höhe über der Warenbahn liegt. Die Höhe darf nicht so groß sein, daß sich der Schleier im Fall wieder verungleichmäßigt und zu einzelnen verdickten Stromfäden oder Strängen zusammenfindet.Such devices are used for example in the dyeing of carpet webs. The dyeing liquid is applied to the drainage plate, either by doctoring or by pouring, and runs off in a uniform layer over the drainage plate, which is inclined downward onto the web, and then from the lower edge of the drainage plate in a uniform film or veil onto the Merge web to pass, the fall height of which is about 0 - 10 cm, ie the lower edge of the drain plate occupies a position above the web that is between almost touching and a small height above the web. The height must not be so great that the veil becomes uneven again in the case and comes together to form individual thickened current threads or strands.

Mit Auftragsvorrichtungen dieser Art lassen sich die für die Teppichfärbung benötigten Färbeflüssigkeitsmengen mit hoher Genauigkeit dosiert auf die unter der Ablaufplatte vorbeilaufende Warenbahn auftragen. Für die Gleichmäßigkeit des Auftrags ist aber eine besondere Gleichmässigkeit des unteren Randes der Ablaufplatte und die Ebenheit der Ablaufplatte erforderlich. Schon Ungleichmäßigkeiten wie ein schlecht verschliffener Nietkopf oder ein Schweißpunkt geben Störungen des gleichmäßigen Ablaufs der Flüssigkeit, die zu Inhomogenitäten des fallenden Flüssigkeitsschleiers und damit zu sichtbarer Streifigkeit des Färbungsausfalls Anlaß sind.With application devices of this type, the amounts of dyeing liquid required for carpet dyeing can be metered with high accuracy onto the web of material passing under the discharge plate. For the uniformity of the application, however, there is a special uniformity of the lower edge of the drain plate and the flatness the drain plate required. Even irregularities such as a badly ground rivet head or a welding spot give disturbances in the smooth flow of the liquid, which give rise to inhomogeneities in the falling liquid curtain and thus to visible streakiness of the color loss.

Es ist in der Praxis nicht einfach, den hohen Anforderungen optimal gerecht zu werden. Teppichbahnen haben eine Breite von bis zu 5 Metern, und es muß daher der Träger der Ablauffläche die Teppichbahn in dieser Breite überspannen ohne durchzuhängen, ohne im Betrieb in Schwingungen zu geraten und ohne irgendeine Welligkeit oder sonstige Störung insbesondere des unteren Randes der Ablauffläche zu zeigen.In practice, it is not easy to optimally meet the high demands. Carpet sheets have a width of up to 5 meters, and therefore the wearer of the drainage surface must span the carpet sheet in this width without sagging, without starting to vibrate during operation and without showing any ripple or other disturbance, in particular of the lower edge of the drainage surface.

Die Ablaufflächen wurden bisher meist aus Blech gefertigt und mit dem Träger verbunden, um dann mit diesem zusammen montiert zu werden. Häufig genug erfuhren die empfindliche Ablauffläche bei der Montage an dem aus Stabilitätsgründen recht schweren Träger Stöße, die zu Verformungen, Eindellungen usw. Anlaß wurden. Es mußte dann die Ablauffläche in aufwendiger Arbeit demontiert und durch eine neue ersetzt werden, wobei in vielen Fällen sogar der Träger insgesamt abgenommen werden mußte. Auch im Betrieb war eine hinreichend sorgfältige Behandlung der Ablauffläche nicht immer gewährleistet, wodurch ebenfalls umständliche Auswechselungen erforderlich wurden. Das gleiche gilt, wenn z.B. von einer Ablaufplatte mit geradem Rand infolge des Einsatzes einer Färbeflüssigkeit mit anderen physikalischen Eigenschaften auf eine Ablaufplatte mit gezahntem oder gezacktem Rand übergegangen werden mußte.Up to now, the drainage surfaces have mostly been made of sheet metal and connected to the support in order to be assembled together with it. Frequently enough, the sensitive drainage surface experienced knocks during assembly on the beam, which was quite heavy for reasons of stability, which caused deformations, indentations, etc. The drainage surface then had to be disassembled and replaced by a new one, in many cases even the support as a whole had to be removed. Sufficiently careful handling of the drain surface was not always guaranteed even during operation, which also made laborious changes necessary. The same applies if e.g. from a drain plate with a straight edge due to the use of a coloring liquid with different physical properties, it was necessary to transfer to a drain plate with a serrated or serrated edge.

Bei der aus der DE 28 12 219 62 bekannten Vorrichtung besteht die Ablaufplatte aus einer nach unten geneigten Leitfläche, deren der Warenbahn benachbarter unterer Randabschnitt durch eine relativ dünne gespannte Folie gebildet ist, deren unterer Rand die Ablaufkante für den dünnen Flüssigkeitsfilm bildet. Die Leitfläche bildet gemeinsam mit ihrer dünnen Folie eine Ebene, die gegenüber der horizontalen in der erforderlichen Weise geneigt ist.In the device known from DE 28 12 219 62, the drain plate consists of a downwardly inclined guide surface, the Material web adjacent lower edge section is formed by a relatively thin stretched film, the lower edge of which forms the run-off edge for the thin liquid film. The guide surface, together with its thin film, forms a plane which is inclined in the required manner with respect to the horizontal.

Wie die Spannung der Folie erzielt weren soll, ist aus der DE-PS 28 12 219 nicht im einzelnen zu entnehmen. Jedenfalls aber soll die Ebenheit der Folie durch die Spannung erzeugt werden, was eine entsprechende Verformbarkeit der Folie bedingt, die zu einer hohen mechanischen Empfindlichkeit der Anordnung führt.How the tension of the film is to be achieved cannot be found in detail from DE-PS 28 12 219. In any case, the flatness of the film should be generated by the tension, which requires a corresponding deformability of the film, which leads to a high mechanical sensitivity of the arrangement.

Aus der Praxis ist eine dem Oberbegriff des Anspruchs 1 entsprechende Ablaufplatte bekannt, bei der der Streifen auf die ebene Tragfläche des Trägers aufgeklebt ist. Bei der erwähnten großen Arbeitsbreite von unter Umständen 5 m ist die Handhabung eines solchen Streifens bei einem Klebevorgang nicht einfach. Schon kleinste Fehler in der Dicke der Klebeschicht und anderweitig zustandegekommene Unebenheiten der Oberfläche des Streifens äußern sich in Unregelmäßigkeit des von der Unterkante des Streifens herabfallenden Schleiers. Insbesondere ist bei einer geklebten Ausführungsform das Auswechseln, welches nach einer Beschädigung des Streifens notwendig sein kann, erheblich erschwert, wenn nicht gar, bei Berücksichtigung sinnvollen Aufwands, unmöglich.From practice, a drain plate corresponding to the preamble of claim 1 is known, in which the strip is glued to the flat support surface of the carrier. Given the large working width of 5 m mentioned, the handling of such a strip during an adhesive process is not easy. Even the smallest defects in the thickness of the adhesive layer and other unevenness in the surface of the strip manifest themselves in the irregularity of the veil falling from the lower edge of the strip. In particular, in the case of a glued embodiment, the replacement, which may be necessary after the strip has been damaged, is made considerably more difficult, if not impossible, if reasonable effort is taken into account.

Der Erfindung liegt die Aufgabe zugrunde, eine betriebssichere Vorrichtung der gattungsgemäßen Art zu schaffen, bei der die Ablauffläche leicht ausgetauscht werden kann.The invention has for its object to provide a reliable device of the generic type, in which the drain surface can be easily replaced.

Diese Aufgabe wird durch die in Anspruch 1 wiedergegebene Erfindung gelöst.This object is achieved by the invention reproduced in claim 1.

Der den Ablaufrand bildende Streifen soll also nicht erst durch von dem Träger ausgeübte Kräfte seine Ebenheit erhalten, sondern eine solche Biegesteifigkeit aufweisen, daß er von sich aus eine ihm bei der Herstellung erteilte Ebenflächigkeit auch unter der Wirkung der Befestigung auf dem Träger beibehält. Punktuelle Einleitung von Kräften durch Schrauben, Niete oder Schweißpunkte, sollen nicht vorkommen. Vielmehr sollen die senkrecht zu dem Streifen wirkenden magnetischen Haltekräfte in Flächengebereichen wirken, die einen größeren Teil oder aber die Gesamtheit der Überdeckungsfläche des Streifens und der Tragfläche einnehmen. Ein wichtiger Aspekt besteht in der Lösbarkeit der Verbindung ohne aufwendige Montage und erst recht ohne Zerstörung des Streifens nur unter Überwindung von Kräften, die zwar den Streifen mit hinreichender Sicherheit im Betrieb in seiner Lage festhalten, aber nicht so groß sind, daß der Streifen bei der Überwindung dieser Kräfte Schaden nimmt, d.h. anders als elastisch verformt wird.The strip forming the run-off edge should therefore not only obtain its flatness from the forces exerted by the carrier, but should have such a bending stiffness that it inherently maintains a flatness given to it during manufacture even under the effect of the fastening on the carrier. The selective introduction of forces through screws, rivets or welding spots should not occur. Rather, the magnetic holding forces acting perpendicular to the strip are to act in surface areas which occupy a larger part or all of the covering area of the strip and the wing. An important aspect is the releasability of the connection without complex assembly and even more without destroying the strip only by overcoming forces that the strip does Maintain sufficient safety in operation in its position, but are not so large that the strip is damaged when it overcomes these forces, ie it is deformed differently than elastically.

Die Problematik der Ausbildung von Ablaufflächen in Vorrichtungen der eingangs genannten Art ist bereits früher erkannt worden. So wird eine einwandfreie Ablauffläche in der DE-OS 25 48 890 und im DE-GM 74 03 152 dadurch angestrebt, daß eine elastische Folie an einer vertikalen Wandung quer über die Warenbahn festgespannt und das oben aus der Festspannung herausragende Ende in einem Bogen um mehr als 90° nach unten umgebogen wurde. Der umgebogene Schenkel bildet die Ablauffläche mit dem Ablaufrand. Gehalten wird dieser Schenkel in seiner Lage durch eine von oben auf ihm aufliegende Leitfläche, auf der die Flüssigkeit von oben herunterläuft und dann auf den Schenkel der Folie übergeht. Es ist sehr schwierig, mit einer solchen Anordnung eine über größere Bahnenbreiten wirklich gleichmäßige Ablaufkante zu erzielen. Schon die Stufe am Übergang von der Leitfläche auf die Folie kann im übrigen ungewünschte Verungleichmäßigungen des ablaufenden Flüssigkeitsfilms hervorrufen.The problem of the formation of drainage surfaces in devices of the type mentioned at the outset has already been recognized. So a perfect drainage surface in DE-OS 25 48 890 and in DE-GM 74 03 152 is sought in that an elastic film is clamped to a vertical wall across the web and the end protruding from the fixed tension in an arc by more when it was bent down 90 °. The bent leg forms the drainage surface with the drainage rim. This leg is held in its position by a guide surface resting on it from above, on which the liquid runs down from above and then passes onto the leg of the film. With such an arrangement, it is very difficult to achieve a really even drain edge over larger web widths. The step at the transition from the guide surface to the film can also cause undesirable irregularities in the running liquid film.

Aus der DE-OS 12 69 547 ist eine Vorrichtung zum Gießauftrag von Kunststoffdispersionen oder dergleichen bekannt, bei der in Fig. 5 eine geneigte Gleitplatte dargestellt ist, an deren oberen Ende ein streifenförmiges Abnahmemesser aus dünnem Federstahl befestigt ist, ohne daß Einzelheiten dieser Befestigung ersichtlich sind. Es handelt sich hierbei aber nicht um eine gattungsgemäße Vorrichtung, bei der der Streifen frei vorkragend die Ablaufkante bildet, sondern um eine Rakelklinge, die an einer Walze anliegt und von dieser die Kunststoffdispersion abnimmt. Das Stabilität- und Ebenheitsproblem stellt sich hierbei nicht, weil die Kante der Klinge durch die Walze, gegen die sie anliegt, von außen stabilisiert wird.From DE-OS 12 69 547 a device for pouring plastic dispersions or the like is known, in which an inclined sliding plate is shown in Fig. 5, at the upper end of which a strip-shaped take-off knife made of thin spring steel is fastened without details of this fastening being apparent are. However, this is not a generic device in which the strip projects freely from the trailing edge, but rather a doctor blade which lies against a roller and removes the plastic dispersion from it. The stability and flatness problem does not arise here because the edge of the blade through the Roller against which it rests is stabilized from the outside.

Die Erfindung kann in der in Anspruch 2 wiedergebenen Weise realisiert werden.The invention can be implemented in the manner set out in claim 2.

Die Magnete haben eine gewisse Ausdehnung parallel zur Tragfläche und üben somit in ihrem Bereich eine flächige Anziehungskraft auf den ferromagnetischen Streifen aus.The magnets have a certain extent parallel to the wing and thus exert a large area of attraction on the ferromagnetic strip in their area.

Der Streifen kann zweckmäßig aus einem hartgewalzten Federstahlblech von 0,3 bis 1 mm Stärke bestehen (Anspruch 3).The strip can expediently consist of a hard-rolled spring steel sheet with a thickness of 0.3 to 1 mm (claim 3).

Dieses Material hat den Vorteil, daß es eine sehr gute Planheit aufweist und außerdem wegen seiner sehr hohen Streckgrenze bei einem Stoß oder Schlag nicht leicht plastisch verformt wird. Die Beanspruchungen werden also ertragen, ohne daß bleibende Veränderungen an der planen Ablauffläche entstehen.This material has the advantage that it has very good flatness and, because of its very high yield strength, is not easily plastically deformed in the event of an impact or impact. The stresses are endured without permanent changes to the flat drainage surface.

In der Zeichnung ein Ausführungsbeispiel der Erfindung dargestellt.

  • Fig. 1 zeigt einen Querschnitt durch eine erfindungsgemäße Ablaufplatte in einer in Längsrichtung der Bahn verlaufenden vertikalen Ebene;
  • Fig. 2 zeigt eine Ansicht in der Richtung II in Fig. 2;
In the drawing, an embodiment of the invention is shown.
  • Fig. 1 shows a cross section through a drain plate according to the invention in a vertical plane running in the longitudinal direction of the web;
  • Fig. 2 shows a view in the direction II in Fig. 2;

Die in Fig. 1 als Ganzes mit 100 bezeichnete Ablaufplatte umfaßt einen Träger 1 in Gestalt eines Winkelprofils aus Stahl, welche sich horizontal quer über die Warenbahn 8 erstreckt und auf der Oberseite eine ebene Tragfläche 2 darbietet, die in dem Ausführungsbeispiel in einer in Längsrichtung der Bahn vertikal verlaufenden Ebene um etwa 40° gegen die Bahn hinabgeneigt ist. Auf der Tragfläche 2 liegt ein Streifen 10 aus planem Federstahlblech von 0,5 mm Stärke in einem Auflagebereich 9 auf, der etwa der Hälfte der Breite des Streifens 10 entspricht. Der Streifen 10 erstreckt sich also mit seiner Längsrichtung quer zur Bahn. Die untere Hälfte des Streifens steht frei nach unten vor und bildet eine Ablauffläche A mit einem horizontalen, dicht oberhalb der Warenbahn 8 angeordneten geraden Rand 6.1 as a whole with 100 drain plate comprises a support 1 in the form of an angle profile made of steel, which extends horizontally across the web 8 and on the top side presents a flat wing 2, which in the embodiment in a in the longitudinal direction Web is vertically inclined by about 40 ° inclined towards the web. A strip 10 of flat spring steel sheet of 0.5 mm thickness lies on the support surface 2 in a support area 9 which corresponds to approximately half the width of the strip 10. The strip 10 thus extends transversely to the web with its longitudinal direction. The lower half of the strip projects freely downward and forms a run-off area A with a horizontal straight edge 6 arranged just above the web 8.

Eine Flüssigkeit wird im oberen Bereich der Ablauffläche A bei 4 auf die Ablauffläche A ausgegossen, strömt in einer gleichmäßigen Schicht 5 entsprechend der Schräge der Ablauffläche A nach unten und fällt von dem unteren Rand 6 der Ablauffläche A in einem frei fallenden Film oder Schleier 7 auf die Warenbahn 8, die im Sinne des Pfeiles unter dem Rand 6 vorbeigefördert wird.A liquid is poured onto the drain surface A in the upper region of the drain surface A at 4, flows downwards in a uniform layer 5 corresponding to the slope of the drain surface A and falls from the lower edge 6 of the drain surface A in a freely falling film or veil 7 the web 8, which is conveyed past under the edge 6 in the direction of the arrow.

Der Streifen 10 liegt flach auf der Tragfläche 2 auf und wird durch eine Reihe von längs des Trägers 1 verteilten, auf dessen Rückseite angeordneten Permanentmagneten 3 auf der Tragfläche 2 festgehalten. Ansonsten ist der Streifen 10 mit der Tragfläche 2 unverbunden. Die Kraft der Magnete 3 reicht jedoch aus, um den Streifen 10 im Betrieb mit ausreichender Kraft in seiner Position festzuhalten. Zum Auswechseln des Streifens 10 kann dieser unter Ausübung einer entsprechend höheren Kraft von der Tragfläche 2 einfach weggenommen werden.The strip 10 lies flat on the support surface 2 and is held on the support surface 2 by a series of permanent magnets 3 distributed along the support 1 and arranged on its rear side. Otherwise the strip 10 is not connected to the wing 2. However, the force of the magnets 3 is sufficient to hold the strip 10 in position with sufficient force during operation. To replace the strip 10, it can simply be removed from the wing 2 by exerting a correspondingly higher force.

Die Permanentmagnete 3 üben ihre Kraft auf einer Fläche aus, die in dem in Fig. 2 dargestellten Ausführungsbeispiel etwa 20 % des Auflagebereichs 9 ausmacht. Zur Sicherstellung einer ausreichenden Flächigkeit des Kraftangriffs sollte sein Flächenanteil hier wie auch in den weiteren Ausführungsbeispielen 10 % nicht unterschreiten.The permanent magnets 3 exert their force on a surface which, in the exemplary embodiment shown in FIG. 2, makes up about 20% of the contact area 9. To ensure sufficient flatness of the force attack, its area portion should not fall below 10% here, as in the other exemplary embodiments.

Claims (3)

  1. A discharge plate for a device for supplying a liquid film to a web of material, the discharge plate:
       extending transversely over the web;
       being inclined downwardly towards the web in a vertical longitudinal plane thereof, and
       having a support presenting a plane support surface and a self-stable flat strip which engages flat in its upper region with a contact zone on the support surface, is connected thereto and whose bottom edge forms the discharge surface,
    the liquid being adapted to be supplied in the top zone of the discharge plate and to descend over the discharge surface in order to pass from the bottom edge of the discharge surface in a uniform film or curtain to the web, characterised in that the strip (10) is retained on the support surface (2) magnetically.
  2. A discharge plate according to claim 1,
    characterised in that the strip (10) is retained on the support surface (2) ferromagnetically and by magnets (3) disposed in or below the support surface (2).
  3. A discharge plate according to claim 1 or 2,
    characterised in that the strip (10) is made of a hard-rolled spring steel sheet or plate of from 0.3 to 1.0 mm in thickness.
EP91920996A 1990-05-18 1991-05-11 Draining board for a device for applying a liquid film to a web of textile material Expired - Lifetime EP0517866B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4015946A DE4015946C3 (en) 1990-05-18 1990-05-18 Drain plate for a device for applying a liquid film to a web
DE4015946 1990-05-18

Publications (2)

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EP0517866A1 EP0517866A1 (en) 1992-12-16
EP0517866B1 true EP0517866B1 (en) 1994-03-09

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Application Number Title Priority Date Filing Date
EP91920996A Expired - Lifetime EP0517866B1 (en) 1990-05-18 1991-05-11 Draining board for a device for applying a liquid film to a web of textile material

Country Status (6)

Country Link
US (1) US5277041A (en)
EP (1) EP0517866B1 (en)
JP (1) JPH05503741A (en)
CA (1) CA2083144C (en)
DE (2) DE4015946C3 (en)
WO (1) WO1991018140A1 (en)

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US6395088B1 (en) * 1999-06-30 2002-05-28 Gaston Systems, Inc. Apparatus for applying foamed coating material to a traveling textile substrate
DE20023954U1 (en) * 2000-11-22 2007-12-06 Voith Patent Gmbh Curtain coater
ATE456695T1 (en) 2000-11-22 2010-02-15 Voith Patent Gmbh CURTAIN APPLICATION DEVICE
FI111562B (en) * 2002-01-16 2003-08-15 Metso Paper Inc A method and apparatus for applying a treating agent to a moving surface
US6814806B2 (en) 2002-07-25 2004-11-09 Gaston Systems Inc. Controlled flow applicator
DE10348788B3 (en) * 2003-10-21 2005-06-30 Eduard Küsters Maschinenfabrik GmbH & Co. KG Device for applying liquids to a moving web
DE10358221A1 (en) * 2003-12-12 2005-07-07 Voith Paper Patent Gmbh doctor device
US7431771B2 (en) * 2004-11-12 2008-10-07 Gaston Systems, Inc. Apparatus and method for applying a foamed composition to a dimensionally unstable traveling substrate
JP4902160B2 (en) * 2005-09-22 2012-03-21 ボイス ペ−パ− パテント ゲ−エムベ−ハ− Coating equipment
WO2020102460A1 (en) 2018-11-13 2020-05-22 Gaston Systems, Inc. A segmented distribution assembly for distributing fluid to an applicator nozzle

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DE7403152U (en) * 1974-05-02 Brueckner Apparatebau Gmbh Device for applying a liquid film to a web of material
DE1269547B (en) * 1960-05-09 1968-05-30 Stahl Und Walzwerke Rasselstei Device for pouring plastic dispersions or the like.
CH497926A (en) * 1967-03-29 1970-10-31 Kuesters Eduard Maschf Device for the continuous application of treatment liquid to moving textile web with pile or pile threads on one surface
GB1296725A (en) * 1970-08-25 1972-11-15
DE2132885C3 (en) * 1971-07-01 1974-09-26 Eduard Kuesters Maschinenfabrik, 4150 Krefeld Device for applying a liquid in a pattern to a moving web
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US4547921A (en) * 1980-06-05 1985-10-22 Otting Machine Company, Incorporated Pattern dyeing of textile materials such as carpet
US4369640A (en) * 1980-08-20 1983-01-25 Wadsworth-Greenwood Corporation Apparatus for obtaining uniform solid colors or variegated patterns in fabrics
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DE3915843C1 (en) * 1989-05-16 1990-12-06 Eduard Kuesters Maschinenfabrik Gmbh & Co Kg, 4150 Krefeld, De

Also Published As

Publication number Publication date
DE4015946C2 (en) 1992-03-05
DE4015946C3 (en) 1996-06-20
US5277041A (en) 1994-01-11
WO1991018140A1 (en) 1991-11-28
DE4015946A1 (en) 1991-11-21
CA2083144C (en) 1997-03-25
DE59101166D1 (en) 1994-04-14
EP0517866A1 (en) 1992-12-16
JPH05503741A (en) 1993-06-17

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