EP2022881B1 - Device for water jet treatment of fabrics - Google Patents

Device for water jet treatment of fabrics Download PDF

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Publication number
EP2022881B1
EP2022881B1 EP08016337A EP08016337A EP2022881B1 EP 2022881 B1 EP2022881 B1 EP 2022881B1 EP 08016337 A EP08016337 A EP 08016337A EP 08016337 A EP08016337 A EP 08016337A EP 2022881 B1 EP2022881 B1 EP 2022881B1
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EP
European Patent Office
Prior art keywords
suction
suction chamber
displacement body
water
perforated
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EP08016337A
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German (de)
French (fr)
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EP2022881A2 (en
EP2022881A3 (en
Inventor
Ullrich Dr. Münstermann
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Truetzschler Nonwovens GmbH
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Truetzschler Nonwovens GmbH
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Publication of EP2022881A3 publication Critical patent/EP2022881A3/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C29/00—Finishing or dressing, of textile fabrics, not provided for in the preceding groups

Definitions

  • the invention relates to a device for Strahlbeetzung of fabrics, tissue webs or webs, consisting of staple fibers, continuous filaments or cellulose fibers also from several layers or mixtures and provided on the lower side of the suction perforated suction for the extraction of water spray.
  • a water bar for the water needling of fabrics ( WO 01/40562 A1 ), which is associated with a cover groove, which is mounted from an upper support and a cover arranged below it with a porous bottom so that a suction channel can be formed.
  • a suction opening and a horizontal porous cover plate are arranged on one side of the water jet.
  • the invention is based on the object that a water jet emerging from the water jet in its direction over the entire length and / or width of the water bar not by splashing water and by the spraying caused water mist is impaired and the usual drop formation is excluded at the bottom of the water bar.
  • an air displacement body in the suction chamber, is positioned so that a uniform suction effect over the entire width and / or length of the perforated suction surface is ensured because the suction takes place on one side.
  • the arrangement of the air displacement body air flows are fine adjusted within the suction as needed.
  • the air displacement body has a lower side which encloses in the longitudinal direction of the suction chamber with its underside an angle which is between 1 ° and 30 °, wherein the gap between the air displacement body and the perforated suction surface is narrower in the direction of a suction device.
  • the air displacement body ends with its one end or its side wall in the region of the suction device connected to the suction chamber.
  • the air displacement body is located above the perforated suction surface and the perforated suction area narrows such that a maximum air flow of, for example, 2 m / s is achieved on the outside of the perforated suction.
  • the air displacement body extends approximately over the entire width and / or length of the suction chamber and that the air displacement body is an approximately rectangular body, in particular a housing which extends in the direction of the suction chamber and in this Direction inclined. As a result, a uniform suction power is ensured over the entire surface of the suction device.
  • Fig. 1 1a denotes a water bar, from which a water jet 10 exits via nozzle openings (not shown in the drawing) and impinges on tissue guided over a fabric support 13 of a sieve drum or sieve roller 14a, a fabric weft web or webs 2.
  • the water is discharged for the most part via a Wasserab technologicalvorraum 12 of the screen roller 14a.
  • a suction device or suction chamber 5 a which has on its lower side 5 b a perforated suction surface 3 a, b with openings 3 c, so that when the water jet 10 appears on fabric, a fabric web or webs 2 resulting spray water is passed to the underside of the suction chamber 5b and can then be completely sucked from the suction chamber 5a.
  • the water droplets occurring at the bottom of the water bar 1 a can be avoided and no longer drip onto the fabric, the tissue web or the webs 2.
  • the suction chamber 5a is arranged symmetrically to both sides of the water bar 1 a.
  • a negative pressure which is provided by a not shown in the drawing pump, which is connected via a suction hose 8b with the suction chamber 5a.
  • Fig. 2 shows a further embodiment of the suction chamber 5a for the water beam 1a for the jet exposure of fabrics, tissue webs or webs 2 with provided on the lower side 5b of the suction 5a perforated suction surfaces 3a and 3b for the suction of water spray 4.
  • the perforated suction surface 3a, 3b is so inclined extending so as to extend from an upper portion 6b close to the water bar 1a and / or a drip edge 6a to a lower portion 6c of the suction chamber 5a.
  • the first portion 3a of the perforated suction surface has a relatively small open area, while the second portion 3b of the perforated suction area has a relatively large area.
  • the suction chamber can also be formed without the drip edge.
  • the openings 3c provided in the perforated suction surface have a smaller average in the section 3a than the openings 3c in the section 3b. In this way, an approximately equal suction pressure is generated on the inner upper side of the suction surface 3a or 3b so that the spray water impinging on the fabric, the fabric weft web or the webs 2 can be readily sucked off. Furthermore, the water droplets traveling downwardly due to gravity can be completely sucked into the suction chamber 5a through the larger openings 3c in the lower area of the suction surface 6c.
  • the distance between the individual openings 3c may be the same or different.
  • the cross-sectional areas of the openings 3c starting from the drip edge 6a become progressively larger in the direction of the suction chamber 5a or a side 5c of the suction chamber 5a facing away from the water beam 1a.
  • the cross-sectional areas of the openings 3c, starting from the drip edge 6a continuously or in uniform steps can be increasingly larger.
  • a tangent 14b on the outer periphery of the screen roller 14a.
  • the tangents 14b encloses an angle ⁇ with the lower surface of the suction surface 3a and 3b.
  • the angle ⁇ may be between 5 ° and 25 °, but preferably between 6 ° and 15 °.
  • the openings 3 c of the suction surface 3 a, 3 b on the inner side 3 a facing the water jet 10 of the water bar 1 a make an open area of about 3% to 8%, preferably 5%, and an open area of about 10% to 25 on the outer side % preferably from 20%.
  • the suction chamber 5a located on the right side of the water bar 1a, the suction chamber 5a, which may be formed as an approximately rectangular box and is received via the spray water 4.
  • the water beam 1a and the suction chamber 5a an air supply 11a associated with an air supply channel 11b which ends in the region of the lower side 1b of the water bar 1 a, wherein an outlet opening 11 c of the air supply channel 11 b in the vicinity of the water jet 10 is located ,
  • the air supply passage 11b is formed substantially by an outside of the water bar 1c and a left outside 5d of the suction chamber 5a.
  • the air supply channel 11 b extends approximately parallel to the outside of the water bar 1 a and the lower side 1 b of the water bar 1 a.
  • the drip edge 6a belonging to the suction chamber 5a is also located. At the drip edge 6a only very fine drops of water can form, which can do no further damage when they fall down.
  • the dry air supplied via the air supply duct 11b of the air supply device 11a to the water jet 10 has the advantage that it does not influence the water jet 10 in its direction.
  • the water jet 10 is thus not influenced by very fine water droplets or mist and can be projected particularly focused on the tissue, the tissue web or the webs 2.
  • Fig. 2 the dry air via the air supply channel 11 b introduced by the water jet 10 intrinsic suction effect.
  • the dry air can also be actively supplied to the water jet 10 via the air supply device 11a if required with the aid of a blower.
  • Fig. 2 is located on the right side of the water bar 1a, the air supply device 11a and the suction chamber 5a.
  • the suction chamber 5a can be arranged symmetrically on both sides of the water bar 1a (see also Fig. 1 ).
  • the air supply device 11a can be arranged symmetrically on both sides of the water bar 1a.
  • the air supply passage 11b of the air supply device 11a is formed in this embodiment substantially by a distance of 1 to 15 mm, preferably 3 to 10 mm and especially 3 to 6 mm between an outer side of the water bar 1c and the water bar facing outside of the suction chamber 5d ,
  • the air supply duct 11b can also be configured by hoses or similar air supply devices in a variant of the drawing which is not shown in the drawing.
  • the outlet opening 11c extends approximately over the entire width of the water bar 1a.
  • the outlet opening 11 c is further aligned so that the exiting air jet occurs approximately perpendicular to the emerging from the water beam 1 a water jet 10.
  • the apertures 3c of the perforated suction surface on the side 3a facing the water jet 10 may be formed as elongated approximately parallel slots having a length between 1 mm and 10 mm and a width A between 0.1 mm and 3 mm. It is also possible in that the slots provided on the outer side 3b of the perforated suction surface are preferably formed angularly with a length between 1 mm and 10 mm and a width B between 0.1 mm and 3 mm. Depending on the embodiment, the slots may also have a linear or a wave-shaped course. All of these design variants of the openings 3c have the aim of absorbing the water droplets of the spray water 4 running along the perforated suction surface as efficiently as possible. It should be prevented in particular that the water droplets of the spray water 4 can pass between the openings 3c.
  • an air displacement body 7a which may have different shapes.
  • the air displacement body 7a is formed as a hollow body and is bounded by two parallel side walls 7c and 7d.
  • the air displacement body 7a is located above the perforated suction surface 3a, 3b, in particular above the suction surface with relatively large open area 3b, so that the perforated suction surface 3a, 3b is narrowed such that a maximum air flow of, for example, 2 m / s on the outside of the perforated Absaug Structure 3b is achieved.
  • the air displacement body 7a extends over the entire width and / or length of the suction chamber 5a.
  • the air displacement body 7a may be variably mounted in a further advantageous embodiment, not shown in the drawing, in terms of its height and inclination.
  • the underside 7b of the displacement body 7a extends in the same direction as the suction surface 3a and 3b and thus includes an angle ⁇ not shown in the drawing between 5 ° and 30 °.
  • the air displacement body also includes with its lower side 7b opposite the inner surface of the perforated suction surface 3a, 3b an angle ⁇ , which is between 1 ° and 30 ° and between 1 ° and 5 °, the gap between the Air displacement body 7a and the perforated suction surface 3a, 3b in the direction of a suction device 8a becomes narrower.
  • suction device consisting of a connecting piece 8a and a suction hose 8b, via which the spray water taken up by the suction chamber 5a is discharged and the negative pressure is generated in the same.
  • the interior of the suction chamber 5 a is accessible via a supply flap 9.
  • the air displacement body 7a ends with its lower end in the region of the connecting piece of the suction device 8a.

Abstract

The chamber has a perforated suction surface (3a,3b) provided for suction of spray. The suction surface is arranged in an inclined running manner. The suction surface extends from an upper area (6b) proximate a water beam (1a) and/or a drainage area up to a lower area (6c) of the chamber. The suction surface has openings with varying size cross sectional area. The distance between the individual openings is equal or variably large. An independent claim is also included for a device for water jet impact of fabrics, fabric made of strips of interlaced yarn and wool.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Strahlbeaufschlagung von Geweben, Gewebegewirkbahnen oder Vliesen, bestehend aus Stapelfasern, Endlosfilamenten oder Zellulosefasern auch aus mehreren Lagen oder Gemischen und einer an der unteren Seite der Absaugkammer vorgesehenen perforierten Absaugfläche für das Absaugen von Sprühwasser.The invention relates to a device for Strahlbeaufschlagung of fabrics, tissue webs or webs, consisting of staple fibers, continuous filaments or cellulose fibers also from several layers or mixtures and provided on the lower side of the suction perforated suction for the extraction of water spray.

Es ist bereits bekannt, die an die Unterseite des Wasserbalkens spritzende Flüssigkeit aufzufangen ( DE 199 23 591 A1 ). Hierzu dient eine Einrichtung, die seitlich des Wasserbalkens über seine Länge angeordnet ist. An der Kante des Wasserbalkens ist ein trichterförmiger Schlitz gebildet, an dessen innerem Ende ein Saugschlitz mit einer Höhe von etwa 2 mm gebildet wird. Wird dann an die ansonsten rundum geschlossene Einrichtung ein genügend großer Unterdruck angeschlossen, so können sämtliche Tropfen einschließlich eines Spritznebels von der Unterseite des Wasserbalkens schadlos für die zu vernadelnde Ware abgesaugt werden.It is already known to catch the liquid splashing on the underside of the waterbeam ( DE 199 23 591 A1 ). For this purpose, a device which is arranged laterally of the water bar over its length is used. At the edge of the water bar a funnel-shaped slot is formed, at the inner end of a suction slot is formed with a height of about 2 mm. If a sufficiently large negative pressure is then connected to the otherwise completely enclosed device, then all drops, including a spray mist, can be sucked off from the underside of the water bar without damage to the goods to be needled.

Ferner ist für die Wasservernadelung von Geweben ein Wasserbalken bekannt ( WO 01/40562 A1 ), dem eine Abdeckrinne zugeordnet ist, die aus einer oberen Halterung und einer darunter angeordneten Abdeckrinne mit einer porösen Unterseite so angebracht ist, dass ein Absaugkanal gebildet werden kann. Hierzu sind eine Ansaugöffnung sowie eine waagerechte poröse Abdeckplatte einseitig vom Wasserstrahl angeordnet. Mit dieser Vorrichtung kann entsprechendes Spritzwasser nur unzureichend entfernt werden. Weiterhin kann entstehendes Spritzwasser auf der gegenüberliegenden Seite des Wasserstrahls nicht abgesaugt werden.Furthermore, a water bar is known for the water needling of fabrics ( WO 01/40562 A1 ), which is associated with a cover groove, which is mounted from an upper support and a cover arranged below it with a porous bottom so that a suction channel can be formed. For this purpose, a suction opening and a horizontal porous cover plate are arranged on one side of the water jet. With this device corresponding splash water can be removed only insufficient. Furthermore, resulting spray water can not be sucked off on the opposite side of the water jet.

Der Erfindung liegt die Aufgabe zugrunde, dass ein aus dem Wasserbalken austretender Wasserstrahl in seiner Laufrichtung über die gesamte Länge und/oder Breite des Wasserbalkens nicht durch Spritzwasser und den durch das Spritzen entstehenden Wassernebel beeinträchtigt und die bisher übliche Tropfenbildung an der Unterseite des Wasserbalkens ausgeschlossen wird.The invention is based on the object that a water jet emerging from the water jet in its direction over the entire length and / or width of the water bar not by splashing water and by the spraying caused water mist is impaired and the usual drop formation is excluded at the bottom of the water bar.

Die Aufgabe wird durch die Merkmale von Anspruch 1 gelöst.The object is solved by the features of claim 1.

Gemäß der Erfindung ist vorgesehen, dass in der Absaugkammer ein Luftverdrängungskörper derart positioniert ist, dass eine gleichmäßige Sogwirkung über die gesamte Breite und/oder Länge der perforierten Absaugfläche gewährleistet wird, da die Absaugung einseitig erfolgt. Durch die Anordnung des Luftverdrängungskörpers werden Luftströmungen innerhalb der Absaugkammer je nach Bedarf fein justiert.According to the invention it is provided that in the suction chamber, an air displacement body is positioned so that a uniform suction effect over the entire width and / or length of the perforated suction surface is ensured because the suction takes place on one side. The arrangement of the air displacement body air flows are fine adjusted within the suction as needed.

Der Luftverdrängungskörper weist eine untere Seite auf, die in Längsrichtung der Absaugkammer mit deren Unterseite einen Winkel einschließt, der zwischen 1° und 30° groß ist, wobei der Spalt zwischen dem Luftverdrängungskörper und der perforierten Absaugfläche in Richtung einer Absaugeinrichtung enger wird.The air displacement body has a lower side which encloses in the longitudinal direction of the suction chamber with its underside an angle which is between 1 ° and 30 °, wherein the gap between the air displacement body and the perforated suction surface is narrower in the direction of a suction device.

Der Luftverdrängungskörper endet mit seinem einen Ende oder seiner Seitenwand im Bereich der an der Absaugkammer angeschlossenen Absaugeinrichtung.The air displacement body ends with its one end or its side wall in the region of the suction device connected to the suction chamber.

Ferner ist es vorteilhaft dass sich der Luftverdrängungskörper oberhalb der perforierten Absaugfläche befindet und die perforierte Absaugfläche derart einengt, dass ein maximaler Luftstrom von beispielsweise 2 m/s an der Außenseite der perforierten Absaugfläche erreicht wird.Further, it is advantageous that the air displacement body is located above the perforated suction surface and the perforated suction area narrows such that a maximum air flow of, for example, 2 m / s is achieved on the outside of the perforated suction.

In weiterer Ausgestaltung der Erfindung ist es vorteilhaft, dass sich der Luftverdrängungskörper in etwa über die gesamte Breite und/oder Länge der Absaugkammer erstreckt und dass der Luftverdrängungskörper ein in etwa rechteckförmiger Körper insbesondere ein Gehäuse ist, das sich in Richtung der Absaugkammer erstreckt und in diese Richtung geneigt verläuft. Dadurch wird über die gesamte Fläche der Absaugvorrichtung eine gleichmäßige Absaugleistung gewährleistet.In a further embodiment of the invention, it is advantageous that the air displacement body extends approximately over the entire width and / or length of the suction chamber and that the air displacement body is an approximately rectangular body, in particular a housing which extends in the direction of the suction chamber and in this Direction inclined. As a result, a uniform suction power is ensured over the entire surface of the suction device.

Weitere Vorteile und Einzelheiten der Erfindung sind in den Patentansprüchen und in der Beschreibung erläutert und in den Figuren dargestellt. Es zeigen:

Fig. 1
Eine Absaugkammer für einen Wasserbalken zur Strahlbeaufschlagung von Geweben mit einer Absaugkammer im Schnitt,
Fig. 2
ein weiteres Ausführungsbeispiel einer Absaugkammer für einen Wasserbalken mit einer Luftzufuhrrichtung, die mit einer Auslassöffnung ausgestattet ist, die im Bereich des Wasserbalkens endet,
Fig. 3
einen in der Absaugkammer vorgesehenen Luftverdrängungskörper, der derart positioniert ist, dass eine gleichmäßige Saugwirkung über die gesamte Breite der perforierten Oberfläche bzw. Absaugfläche gewährleistet wird,
Fig. 4
ein Ausführungsbeispiel für die Gestaltung von Öffnungen der perforierten Absaugfläche, wobei die Anordnung der Öffnungen ein effizientes Absaugen des Sprühwassers an der Unterseite einer Absaugkammer ermöglicht.
Further advantages and details of the invention are explained in the patent claims and in the description and illustrated in the figures. Show it:
Fig. 1
A suction chamber for a water beam for the jet exposure of tissues with a suction chamber in section,
Fig. 2
A further embodiment of a suction chamber for a water bar with an air supply direction, which is equipped with an outlet opening which ends in the region of the water bar,
Fig. 3
an air displacement body provided in the suction chamber, which is positioned so as to ensure a uniform suction over the entire width of the perforated surface or suction surface,
Fig. 4
an embodiment for the design of openings of the perforated suction, wherein the arrangement of the openings allows efficient suction of the spray water at the bottom of a suction chamber.

In Fig. 1 ist mit 1a ein Wasserbalken bezeichnet, aus dem ein Wasserstrahl 10 über in der Zeichnung nicht dargestellte Düsenöffnungen austritt und auf über eine Gewebeunterlage 13 einer Siebtrommel bzw. Siebwalze 14a herangeführtes Gewebe, eine Gewebegewirkbahn oder Vliese 2 auftrifft. Dabei wird das Wasser zum größten Teil über eine Wasserabführvorrichtung 12 der Siebwalze 14a abgeführt.In Fig. 1 1a denotes a water bar, from which a water jet 10 exits via nozzle openings (not shown in the drawing) and impinges on tissue guided over a fabric support 13 of a sieve drum or sieve roller 14a, a fabric weft web or webs 2. The water is discharged for the most part via a Wasserabführvorrichtung 12 of the screen roller 14a.

Im Bereich des Wasserbalkens 1 a befindet sich eine Absaugvorrichtung bzw. Absaugkammer 5a, die an ihrer unteren Seite 5b eine geneigt verlaufende perforierte Absaugfläche 3a, b mit Öffnungen 3c aufweist, so dass das beim Auftreten des Wasserstrahls 10 auf Gewebe, eine Gewebegewirkbahn oder Vliese 2 entstehende Spritzwasser an die Unterseite der Absaugkammer 5b geleitet wird und dann von der Absaugkammer 5a vollständig abgesaugt werden kann. Hierdurch können die an der Unterseite des Wasserbalkens 1 a auftretenden Wassertropfen vermieden werden und nicht mehr auf das Gewebe, die Gewebegewirkbahn oder die Vliese 2 abtropfen.In the area of the water bar 1 a, there is a suction device or suction chamber 5 a, which has on its lower side 5 b a perforated suction surface 3 a, b with openings 3 c, so that when the water jet 10 appears on fabric, a fabric web or webs 2 resulting spray water is passed to the underside of the suction chamber 5b and can then be completely sucked from the suction chamber 5a. As a result, the water droplets occurring at the bottom of the water bar 1 a can be avoided and no longer drip onto the fabric, the tissue web or the webs 2.

In diesem Ausführungsbeispiel ist die Absaugkammer 5a symmetrisch zu beiden Seiten des Wasserbalkens 1 a angeordnet. In der Absaugkammer 5a besteht ein Unterdruck, welcher durch eine in der Zeichnung nicht dargestellte Pumpe, die über einen Absaugschlauch 8b mit der Absaugkammer 5a verbunden ist, bereitgestellt wird.In this embodiment, the suction chamber 5a is arranged symmetrically to both sides of the water bar 1 a. In the suction chamber 5a there is a negative pressure, which is provided by a not shown in the drawing pump, which is connected via a suction hose 8b with the suction chamber 5a.

Fig. 2 zeigt ein weiteres Ausführungsbeispiel der Absaugkammer 5a für den Wasserbalken 1a zur Strahlbeaufschlagung von Geweben, Gewebegewirkbahnen oder Vliesen 2 mit an der unteren Seite 5b der Absaugkammer 5a vorgesehenen perforierten Absaugflächen 3a und 3b für das Absaugen von Sprühwasser 4. Die perforierte Absaugfläche 3a, 3b ist derart geneigt verlaufend angeordnet, dass sie sich von einem oberen Bereich 6b nahe liegend des Wasserbalkens 1a und/oder einer Tropfkante 6a bis zu einem unteren Bereich 6c der Absaugkammer 5a erstreckt. Der erste Abschnitt 3a der perforierten Absaugfläche hat eine relativ kleine offene Fläche, während der zweite Abschnitt 3b der perforierten Absaugfläche eine relativ große Fläche besitzt. In einer zeichnerisch nicht dargestellten Ausführungsvariante kann die Absaugkammer auch ohne die Tropfkante ausgeformt sein. Fig. 2 shows a further embodiment of the suction chamber 5a for the water beam 1a for the jet exposure of fabrics, tissue webs or webs 2 with provided on the lower side 5b of the suction 5a perforated suction surfaces 3a and 3b for the suction of water spray 4. The perforated suction surface 3a, 3b is so inclined extending so as to extend from an upper portion 6b close to the water bar 1a and / or a drip edge 6a to a lower portion 6c of the suction chamber 5a. The first portion 3a of the perforated suction surface has a relatively small open area, while the second portion 3b of the perforated suction area has a relatively large area. In a variant, not shown in the drawing, the suction chamber can also be formed without the drip edge.

Die in der perforierten Absaugfläche vorgesehenen Öffnungen 3c weisen im Abschnitt 3a einen kleineren Durchschnitt auf als die Öffnungen 3c im Abschnitt 3b. Auf diese Weise wird ein annähernd gleicher Sogdruck an der Innenoberseite der Absaugfläche 3a bzw. 3b erzeugt, so dass das auf dem Gewebe, der Gewebegewirkbahn oder den Vliesen 2 auftreffende Spritzwasser ohne weiteres abgesaugt werden kann. Weiterhin können dadurch die auf Grund der Schwerkraft nach unten wandernden Wassertropfen durch die größeren Öffnungen 3c im unteren Bereich der Absaugfläche 6c vollständig in die Absaugkammer 5a hineingesaugt werden.The openings 3c provided in the perforated suction surface have a smaller average in the section 3a than the openings 3c in the section 3b. In this way, an approximately equal suction pressure is generated on the inner upper side of the suction surface 3a or 3b so that the spray water impinging on the fabric, the fabric weft web or the webs 2 can be readily sucked off. Furthermore, the water droplets traveling downwardly due to gravity can be completely sucked into the suction chamber 5a through the larger openings 3c in the lower area of the suction surface 6c.

Der Abstand zwischen den einzelnen Öffnungen 3c kann gleich oder unterschiedlich groß sein. Die Querschnittsflächen der Öffnungen 3c beginnend von der Tropfkante 6a werden in Richtung der Absaugkammer 5a bzw. einer dem Wasserbalken 1 a abgewandten Seite 5c der Absaugkammer 5a zunehmend größer. Hierzu können auch die Querschnittsflächen der Öffnungen 3c beginnend von der Tropfkante 6a kontinuierlich oder in gleichmäßigen Schritten zunehmend größer werden.The distance between the individual openings 3c may be the same or different. The cross-sectional areas of the openings 3c starting from the drip edge 6a become progressively larger in the direction of the suction chamber 5a or a side 5c of the suction chamber 5a facing away from the water beam 1a. For this purpose, the cross-sectional areas of the openings 3c, starting from the drip edge 6a continuously or in uniform steps can be increasingly larger.

Wie aus Fig. 2, dem zweiten Ausführungsbeispiel, hervorgeht, liegt an dem Außenumfang der Siebwalze 14a eine Tangentiale 14b an. Die Tangentiale 14b schließt mit der unteren Oberfläche der Absaugfläche 3a und 3b einen Winkel α ein. Der Winkel α kann zwischen 5° und 25° vorzugsweise jedoch zwischen 6° und 15° groß sein. Die Öffnungen 3c der Absaugfläche 3a, 3b an der dem Wasserstrahl 10 des Wasserbalkens 1 a zugewandten inneren Seite 3a machen eine offene Fläche von etwa 3% bis 8% vorzugsweise von 5% und an der äußeren Seite eine offene Fläche von etwa 10% bis 25% vorzugsweise von 20% aus. Gemäß Fig. 2 befindet sich auf der rechten Seite des Wasserbalkens 1a die Absaugkammer 5a, die als in etwa rechteckförmiger Kasten ausgebildet sein kann und über die Sprühwasser 4 aufgenommen wird.How out Fig. 2 According to the second embodiment, there is a tangent 14b on the outer periphery of the screen roller 14a. The tangents 14b encloses an angle α with the lower surface of the suction surface 3a and 3b. The angle α may be between 5 ° and 25 °, but preferably between 6 ° and 15 °. The openings 3 c of the suction surface 3 a, 3 b on the inner side 3 a facing the water jet 10 of the water bar 1 a make an open area of about 3% to 8%, preferably 5%, and an open area of about 10% to 25 on the outer side % preferably from 20%. According to Fig. 2 located on the right side of the water bar 1a, the suction chamber 5a, which may be formed as an approximately rectangular box and is received via the spray water 4.

Gemäß Fig. 2 ist dem Wasserbalken 1a und der Absaugkammer 5a eine Luftzuführvorrichtung 11a zugeordnet, die einen Luftzuführkanal 11b aufweist, der im Bereich der unteren Seite 1 b des Wasserbalkens 1 a endet, wobei sich eine Auslassöffnung 11 c des Luftzuführkanals 11 b in der Nähe des Wasserstrahls 10 befindet. Der Luftzuführkanal 11 b wird im Wesentlichen durch eine Außenseite des Wasserbalkens 1 c und eine linke Außenseite 5d der Absaugkammer 5a gebildet. Der Luftzuführkanal 11 b verläuft hierzu in etwa parallel zu der Außenseite des Wasserbalkens 1 a und der unteren Seite 1 b des Wasserbalkens 1a. Im Bereich der Auslassöffnung 11c des Luftzuführkanals 11b befindet sich auch die zur Absaugkammer 5a gehörige Tropfkante 6a. An der Tropfkante 6a können sich lediglich sehr feine Wassertropfen bilden, die keinen weiteren Schaden anrichten können, wenn sie nach unten fallen.According to Fig. 2 the water beam 1a and the suction chamber 5a an air supply 11a associated with an air supply channel 11b which ends in the region of the lower side 1b of the water bar 1 a, wherein an outlet opening 11 c of the air supply channel 11 b in the vicinity of the water jet 10 is located , The air supply passage 11b is formed substantially by an outside of the water bar 1c and a left outside 5d of the suction chamber 5a. For this purpose, the air supply channel 11 b extends approximately parallel to the outside of the water bar 1 a and the lower side 1 b of the water bar 1 a. In the area of the outlet opening 11c of the air supply channel 11b, the drip edge 6a belonging to the suction chamber 5a is also located. At the drip edge 6a only very fine drops of water can form, which can do no further damage when they fall down.

Die über den Luftzuführkanal 11 b der Luftzuführvorrichtung 11a an den Wasserstrahl 10 herangeführte trockene Luft hat den Vorteil, dass diese den Wasserstrahl 10 nicht in seiner Richtung beeinflusst. Der Wasserstrahl 10 wird somit nicht durch feinste Wassertropfen bzw. Nebel beeinflusst und kann besonders fokussiert auf das Gewebe, die Gewebegewirkbahn oder die Vliese 2 projiziert werden. Dabei wird in diesem Ausführungsbeispiel nach Fig. 2 die trockene Luft über den Luftzuführkanal 11 b durch die dem Wasserstrahl 10 intrinsische Sogwirkung herangeführt.The dry air supplied via the air supply duct 11b of the air supply device 11a to the water jet 10 has the advantage that it does not influence the water jet 10 in its direction. The water jet 10 is thus not influenced by very fine water droplets or mist and can be projected particularly focused on the tissue, the tissue web or the webs 2. In this case, according to this embodiment Fig. 2 the dry air via the air supply channel 11 b introduced by the water jet 10 intrinsic suction effect.

Über die Luftzuführvorrichtung 11a kann in einem weiteren Ausführungsbeispiel, welches zeichnerisch nicht dargestellt ist, bei Bedarf mit Hilfe eines Gebläses die trockene Luft auch aktiv zum Wasserstrahl 10 zugeführt werden.In a further embodiment, which is not shown in the drawing, the dry air can also be actively supplied to the water jet 10 via the air supply device 11a if required with the aid of a blower.

Gemäß Fig. 2 befindet sich lediglich auf der rechten Seite des Wasserbalkens 1a die Luftzuführvorrichtung 11a und die Absaugkammer 5a. Nach einem weiteren in der Zeichnung jedoch nicht dargestellten Ausführungsbeispiel kann die Absaugkammer 5a symmetrisch auf beiden Seiten des Wasserbalkens 1a angeordnet werden (siehe auch Fig. 1). Ebenso kann auch die Luftzuführvorrichtung 11a symmetrisch auf beiden Seiten des Wasserbalkens 1a angeordnet werden.According to Fig. 2 is located on the right side of the water bar 1a, the air supply device 11a and the suction chamber 5a. According to another embodiment, not shown in the drawing, the suction chamber 5a can be arranged symmetrically on both sides of the water bar 1a (see also Fig. 1 ). Likewise, the air supply device 11a can be arranged symmetrically on both sides of the water bar 1a.

Der Luftzuführkanal 11b der Luftzuführvorrichtung 11a wird in diesem Ausführungsbeispiel im Wesentlichen durch einen Abstand von 1 bis 15 mm, vorzugsweise von 3 bis 10 mm und insbesondere von 3 bis 6 mm zwischen einer Außenseite des Wasserbalkens 1c und der dem Wasserbalken zugewandten Außenseite der Absaugkammer 5d gebildet. Der Luftzuführkanal 11b kann in einer zeichnerisch nicht dargestellten Ausführungsvariante auch durch Schläuche oder ähnliche Luftzufuhreinrichtungen ausgestaltet sein.The air supply passage 11b of the air supply device 11a is formed in this embodiment substantially by a distance of 1 to 15 mm, preferably 3 to 10 mm and especially 3 to 6 mm between an outer side of the water bar 1c and the water bar facing outside of the suction chamber 5d , The air supply duct 11b can also be configured by hoses or similar air supply devices in a variant of the drawing which is not shown in the drawing.

Die Auslassöffnung 11c erstreckt sich in etwa über die gesamte Breite des Wasserbalkens 1a. Die Auslassöffnung 11c ist ferner so ausgerichtet, dass der austretende Luftstrahl in etwa senkrecht auf den aus dem Wasserbalken 1a austretenden Wasserstrahl 10 auftritt.The outlet opening 11c extends approximately over the entire width of the water bar 1a. The outlet opening 11 c is further aligned so that the exiting air jet occurs approximately perpendicular to the emerging from the water beam 1 a water jet 10.

Gemäß der Fig. 4 können die Öffnungen 3c der perforierten Absaugfläche an der dem Wasserstrahl 10 zugewandten Seite 3a als längliche in etwa parallel verlaufende Schlitze mit einer Länge zwischen 1 mm und 10 mm und einer Breite A zwischen 0,1 mm und 3 mm ausgebildet sein. Ferner ist es möglich, dass die an der äußeren Seite 3b der perforierten Absaugfläche vorgesehenen Schlitze vorzugsweise winkelförmig mit einer Länge zwischen 1 mm und 10 mm und einer Breite B zwischen 0,1 mm und 3 mm ausgebildet sind. Je nach Ausführungsbeispiel können die Schlitze auch linienförmig bzw. einen wellenförmigen Verlauf aufweisen. Alle diese Gestaltungsvarianten der Öffnungen 3c haben das Ziel, die an der perforierten Absaugfläche entlanglaufenden Wassertropfen des Sprühwassers 4 möglichst effizient aufzunehmen. Dabei soll im Besonderen verhindert werden, dass die Wassertropfen des Sprühwassers 4 zwischen den Öffnungen 3c hindurch laufen können.According to the Fig. 4 For example, the apertures 3c of the perforated suction surface on the side 3a facing the water jet 10 may be formed as elongated approximately parallel slots having a length between 1 mm and 10 mm and a width A between 0.1 mm and 3 mm. It is also possible in that the slots provided on the outer side 3b of the perforated suction surface are preferably formed angularly with a length between 1 mm and 10 mm and a width B between 0.1 mm and 3 mm. Depending on the embodiment, the slots may also have a linear or a wave-shaped course. All of these design variants of the openings 3c have the aim of absorbing the water droplets of the spray water 4 running along the perforated suction surface as efficiently as possible. It should be prevented in particular that the water droplets of the spray water 4 can pass between the openings 3c.

Gemäß den Fig. 2 und 3 ist in der Absaugkammer 5a ein Luftverdrängungskörper 7a angeordnet, der unterschiedliche Formgebungen aufweisen kann. Gemäß Fig. 2 und 3 ist der Luftverdrängungskörper 7a als Hohlkörper ausgebildet und wird von zwei parallel verlaufenden Seitenwänden 7c und 7d begrenzt. Der Luftverdrängungskörper 7a befindet sich oberhalb der perforierten Absaugfläche 3a, 3b insbesondere oberhalb der Absaugfläche mit relativ großer offener Fläche 3b, so dass die perforierte Absaugfläche 3a, 3b derart eingeengt wird, dass ein maximaler Luftstrom von beispielsweise 2 m/s an der Außenseite der perforierten Absaugfläche 3b erreicht wird.According to the Fig. 2 and 3 is disposed in the suction chamber 5a, an air displacement body 7a, which may have different shapes. According to Fig. 2 and 3 the air displacement body 7a is formed as a hollow body and is bounded by two parallel side walls 7c and 7d. The air displacement body 7a is located above the perforated suction surface 3a, 3b, in particular above the suction surface with relatively large open area 3b, so that the perforated suction surface 3a, 3b is narrowed such that a maximum air flow of, for example, 2 m / s on the outside of the perforated Absaugfläche 3b is achieved.

In vorteilhafter Weise erstreckt sich der Luftverdrängungskörper 7a auch über die gesamte Breite und/oder Länge der Absaugkammer 5a. Um eine größtmögliche Flexibilität bei der Einstellung der Luftströmungen innerhalb der Absaugkammer 5a zu erreichen kann der Luftverdrängungskörper 7a in einer weiteren nicht zeichnerisch dargestellten vorteilhaften Ausführungsform in seiner Höhe sowie Neigung variabel montiert sein.Advantageously, the air displacement body 7a extends over the entire width and / or length of the suction chamber 5a. In order to achieve the greatest possible flexibility in the adjustment of the air flows within the suction chamber 5a, the air displacement body 7a may be variably mounted in a further advantageous embodiment, not shown in the drawing, in terms of its height and inclination.

Wie aus Fig. 2 hervorgeht, erstreckt sich die Unterseite 7b des Verdrängungskörpers 7a in die gleiche Richtung wie die Absaugfläche 3a und 3b und schließt somit einen zeichnerisch nicht dargestellten Winkel γ zwischen 5° und 30° ein. Wie aus Fig. 3 ferner hervorgeht, schließt der Luftverdrängungskörper aber auch mit seiner unteren Seite 7b gegenüber der Innenoberfläche der perforierten Absaugfläche 3a, 3b einen Winkel β ein, der zwischen 1° und 30° bzw. zwischen 1° und 5° groß ist, wobei der Spalt zwischen dem Luftverdrängungskörper 7a und der perforierten Absaugfläche 3a, 3b in Richtung einer Absaugeinrichtung 8a enger wird. An der hinteren Seite der Absaugkammer 5a befindet sich eine Absaugeinrichtung bestehend aus einem Anschlussstutzen 8a und einem Absaugschlauch 8b, über die das von der Absaugkammer 5a aufgenommene Spritzwasser abgeführt wird sowie der Unterdruck in derselben erzeugt wird. Der Innenraum der Absaugkammer 5a ist über eine Versorgungsklappe 9 zugänglich.How out Fig. 2 As can be seen, the underside 7b of the displacement body 7a extends in the same direction as the suction surface 3a and 3b and thus includes an angle γ not shown in the drawing between 5 ° and 30 °. How out Fig. 3 Furthermore, the air displacement body also includes with its lower side 7b opposite the inner surface of the perforated suction surface 3a, 3b an angle β, which is between 1 ° and 30 ° and between 1 ° and 5 °, the gap between the Air displacement body 7a and the perforated suction surface 3a, 3b in the direction of a suction device 8a becomes narrower. At the rear side of the suction chamber 5a there is a suction device consisting of a connecting piece 8a and a suction hose 8b, via which the spray water taken up by the suction chamber 5a is discharged and the negative pressure is generated in the same. The interior of the suction chamber 5 a is accessible via a supply flap 9.

Wie aus Fig. 3 hervorgeht, endet der Luftverdrängungskörper 7a mit seinem unteren Ende im Bereich des Anschlussstutzens der Absaugeinrichtung 8a.How out Fig. 3 shows, the air displacement body 7a ends with its lower end in the region of the connecting piece of the suction device 8a.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

1a1a
Wasserbalkenwater beam
1b1b
untere Seite des Wasserbalkenslower side of the water bar
1c1c
Außenseite des WasserbalkensOutside of the water bar
22
Gewebe, Gewebegewirkbahn, VliesFabric, woven fabric web, fleece
3a3a
perforierte Absaugfläche, relativ kleine offene Flächeperforated suction surface, relatively small open area
3b3b
perforierte Absaugfläche, relativ große offene Flächeperforated suction surface, relatively large open area
3c3c
Öffnungopening
44
SprühwasserWater spray
5a5a
Absaugkammersuction
5b5b
Untere Seite der AbsaugkammerLower side of the suction chamber
5c5c
Seite der Absaugkammer, dem Wasserbalken abgewandtSide of the suction chamber, facing away from the water bar
5d5d
Seite der Absaugkammer, dem Wasserbalken zugewandtSide of the suction chamber, facing the water bar
6a6a
Tropfkantedrip edge
6b6b
oberer Bereich der Absaugfläche bzw. AbsaugkammerUpper area of the suction surface or suction chamber
6c6c
unterer Bereich der Absaugfläche bzw. Absaugkammerlower area of the suction surface or suction chamber
7a7a
LuftverdrängungskörperAir-displacement body
7b7b
untere Seite des Verdrängungskörperslower side of the displacement body
7c7c
Seitenwand des VerdrängungskörpersSidewall of the displacement body
7d7d
Seitenwand des VerdrängungskörpersSidewall of the displacement body
8a8a
Absaugeinrichtung, AnschlussstutzenExtraction device, connection piece
8b8b
Absaugeinrichtung, AbsaugschlauchSuction device, suction hose
99
Versorgungsklappesupply Hatch
1010
Wasserstrahlwaterjet
11a11a
Luftzuführvorrichtung, LuftspaltAir supply device, air gap
11b11b
Luftzuführkanalair supply duct
11c11c
Auslassöffnungoutlet
1212
Wasserabführvorrichtungwater draining
1313
GewebeunterlageCloth backing
14a14a
Siebwalzedandy roll
14b14b
Tangentialetangential
α, Iβα, Iβ

Claims (4)

  1. Device for the jet treatment of tissues, knitted fabric sheets or nonwovens of staple fibers, continuous filaments or cellulose fibers, also in a plurality of layers or as mixtures thereof, the device comprising a water beam (1a), a suction chamber (5a) and a perforated suction surface (3a, 3b) for suctioning spray water, said surface being provided on the bottom side of the suction chamber,
    characterized in
    that an air displacement body (7a) is positioned in the suction chamber (5a) such that a uniform suction effect is guaranteed over the entire width and/or length of the perforated suction surface (3a, 3b), for which purpose the air displacement body (7a) has one of its ends or its side wall (7d) end in the region of a suction means (8a) connected to the suction chamber (5a), and the air displacement body (7a) has a bottom side (7b) which, in the longitudinal direction of the suction chamber (5a) encloses an angle (β) with the bottom side (5b) of said chamber that is between 1° and 30°, wherein the gap between the air displacement body (7a) and the perforated suction surface (3a, 3b) narrows in the direction of the suction means (8a).
  2. Device of claim 1,
    characterized in
    that the air displacement body (7a) is situated above the perforated suction surface (3a, 3b) and constricts the perforated suction surface (3a, 3b) such that a maximum air flow of 2 m/s, for instance, is achieved on the outer side of the perforated suction surface (3b).
  3. Device of claim 1,
    characterized in
    that the air displacement body (7a) extends over approximately the entire width and/or length of the suction chamber (5a).
  4. Device of claim 1,
    characterized in
    that the air displacement body (7a) is an approximately rectangular body, in particular a housing, extending towards the suction chamber (5a) and being inclined in this direction.
EP08016337A 2005-09-03 2006-07-21 Device for water jet treatment of fabrics Not-in-force EP2022881B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005041904 2005-09-03
DE102006030701A DE102006030701A1 (en) 2005-09-03 2006-06-30 Suction chamber for a water beam for exposing tissues to radiation
EP06015183A EP1760180B1 (en) 2005-09-03 2006-07-21 Device for water jet treatment of fabrics

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP06015183A Division EP1760180B1 (en) 2005-09-03 2006-07-21 Device for water jet treatment of fabrics
EP06015183.4 Division 2006-07-21

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EP2022881A2 EP2022881A2 (en) 2009-02-11
EP2022881A3 EP2022881A3 (en) 2009-03-25
EP2022881B1 true EP2022881B1 (en) 2011-12-07

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EP06015183A Not-in-force EP1760180B1 (en) 2005-09-03 2006-07-21 Device for water jet treatment of fabrics
EP08016337A Not-in-force EP2022881B1 (en) 2005-09-03 2006-07-21 Device for water jet treatment of fabrics

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EP (2) EP1760180B1 (en)
JP (1) JP4918311B2 (en)
AT (2) ATE516396T1 (en)
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PL (1) PL1760180T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1876278A1 (en) * 2006-06-30 2008-01-09 Fleissner GmbH Suction chamber for a water beam for jet impact on textiles
ES2429900T3 (en) * 2006-06-30 2013-11-18 Trützschler Nonwovens & Man-Made Fibers Gmbh Suction chamber for a water column for tissue jet treatment
DE102006057367A1 (en) * 2006-12-04 2008-06-05 Fleissner Gmbh Water suction chamber for textile jet processing bar also discharges air screen jet in vicinity of water jet

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GB1344701A (en) * 1971-02-10 1974-01-23 Norton Co Ltd Sir James Farmer Apparatus for treating webs
DE2249330A1 (en) * 1972-10-07 1974-04-11 Hoechst Ag PROCESS AND DEVICE FOR CONTINUOUS FIXING OF PRINTS AND PADDING ON POLYESTER FIBERS AND THEIR MIXTURE WITH CELLULOSE FIBERS
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JP2590588B2 (en) * 1990-05-22 1997-03-12 東レ株式会社 Method and apparatus for high pressure water flow treatment of fiber sheet
JP3129527B2 (en) * 1992-07-01 2001-01-31 三菱レイヨン・エンジニアリング株式会社 Injection head for web confounding
JPH06285006A (en) * 1993-04-04 1994-10-11 New Oji Paper Co Ltd Method for production of wiping cloth and apparatus therefor
JPH08503417A (en) * 1993-09-14 1996-04-16 ヨット エム フォイト ゲーエムベーハー Coaching method and device for moving product ribbon
US6085699A (en) * 1995-04-04 2000-07-11 Srp 687 Pty Ltd. Air inlets for water heaters
DE19604504A1 (en) * 1996-02-08 1997-08-14 Schako Metallwarenfabrik Flush-mounted air inlet or outlet in floor
JP3607445B2 (en) * 1997-01-31 2005-01-05 株式会社日立ハイテクインスツルメンツ Electronic component suction nozzle
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FR2801909B1 (en) 1999-12-01 2002-01-11 Icbt Perfojet Sa DEVICE FOR TREATING SHEET MATERIALS USING PRESSURE WATER JETS
IT1314474B1 (en) * 2000-01-28 2002-12-18 Perini Fabio Spa DEVICE AND METHOD FOR CLEANING A SURFACE OF A CYLINDER ROTATING, LIKE A CLICK CYLINDER OF A PRINTING MACHINE OR OTHER
FI115314B (en) * 2001-03-13 2005-04-15 Metso Paper Inc Arrangement for handling paper or cardboard
KR20040089419A (en) * 2003-04-14 2004-10-21 류좌식 Function of automatically controlling indoor temperature suction of vehicle, and apparatus for removing contamination of indoor air and dust
SE526978C2 (en) * 2004-04-20 2005-11-29 Metso Paper Karlstad Ab Protective device for spray equipment and ways to protect it and its surroundings

Also Published As

Publication number Publication date
ATE516396T1 (en) 2011-07-15
JP2007070796A (en) 2007-03-22
EP1760180A2 (en) 2007-03-07
US20070051141A1 (en) 2007-03-08
US7694539B2 (en) 2010-04-13
EP2022881A2 (en) 2009-02-11
DE102006030701A1 (en) 2007-03-08
EP1760180A3 (en) 2008-05-14
ATE536433T1 (en) 2011-12-15
PL1760180T3 (en) 2011-12-30
EP2022881A3 (en) 2009-03-25
JP4918311B2 (en) 2012-04-18
EP1760180B1 (en) 2011-07-13

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