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EP1697571B1 - Suction device for liquids, in particular in hydroentangling machines - Google Patents

Suction device for liquids, in particular in hydroentangling machines Download PDF

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Publication number
EP1697571B1
EP1697571B1 EP20040804513 EP04804513A EP1697571B1 EP 1697571 B1 EP1697571 B1 EP 1697571B1 EP 20040804513 EP20040804513 EP 20040804513 EP 04804513 A EP04804513 A EP 04804513A EP 1697571 B1 EP1697571 B1 EP 1697571B1
Authority
EP
European Patent Office
Prior art keywords
suction
conformity
slot
suction device
tube
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
EP20040804513
Other languages
German (de)
French (fr)
Other versions
EP1697571A1 (en
Inventor
Ullrich MÜNSTERMANN
Roland Schweizer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler Nonwovens GmbH
Original Assignee
Fleissner GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Priority to PL04804513T priority Critical patent/PL1697571T3/en
Publication of EP1697571A1 publication Critical patent/EP1697571A1/en
Application granted granted Critical
Publication of EP1697571B1 publication Critical patent/EP1697571B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/682—Needled nonwoven fabric

Definitions

  • the invention relates to a suction device for liquids in particular at water needling machines, wherein the suction device is assigned outside more than a water beam for generating liquid jets, consisting of a suction tube with one or more over the working length of the tube arranged axially aligned suction for each water bar through which the liquid is sucked out of the associated water bar due to the negative pressure generated in the pipe.
  • a device of this kind is by the EP-A-1 059 377 or the WO 01/79598 known.
  • each water bar is associated with a suction slot, which may also consist of several suction in the suction tube.
  • the suction tube is under negative pressure to dissipate the sprayed liquid.
  • the negative pressure acts on all suction slots in the suction tube.
  • the suction slot is under negative pressure, the assigned water bar is geschaftet. This leads to pressure losses that are to be avoided.
  • the invention has for its object to develop a device with the energy losses are avoided in planned, but disconnected water bar.
  • the solution of the stated tasks is to be seen in the fact that over the entire working width extending suction with respect to a respective associated water bar are formed closed.
  • the locking mechanism can be executed in different ways.
  • the suction device consists of a liquid-permeable, rotatably mounted drum 1, on which the material 2 to be needled rests.
  • the drum 1 is assigned here above only a water bar 3, from which the water jets 4 emerge under high pressure and hit the Good 2. Accordingly, a plurality of water bars 3 may be arranged around the drum 1. The sprayed-on water must be sucked off immediately below the material 2.
  • a suction tube 5 is centrally mounted within the drum 1, in whose wall along a surface line extraction holes 6 each water bar 3 are placed assigned. Right and left of these holes 6 are parallel to the surface line radially outside the tube 5 slide strips 7, 8 arranged to determine the width of the suction slot 9 stationary.
  • the suction slot 9 should be designed to be closed for a short time. There is first the solution after the EP-A-1 059 377 with the interchangeable cleaning strip 9 'after Fig. 7a , in which the suction openings are introduced approximately in the middle. It is the suction slot there closed by inserting a bar in which the suction openings are missing, so a massive shoe. This closure is only possible when the machine is at a standstill.
  • the Fig. 2 shows the suction tube 5, the suction openings 6 on the inside of the tube 5 is associated with a laterally displaceable flap 10.
  • This flap 10 is detachably held on the suction tube 5 by means of a bearing 11.
  • the flap 10 is over a out Fig. 3 apparent number of articulated arms 12 pivotally mounted such that upon pivoting of the articulated arms 12, the flap 10 moves in the direction of the support block 11 'on the other side of the suction slot 6.
  • the suction slot 6 is closed by the flap 10.
  • the actuation of the flap movement is made possible by a pressure cylinder 13.
  • Fig. 5 a on the inside of the suction tube only a longitudinal flap 16 is provided, which is movable with a mechanism, not shown, for closing up against the opening 6.
  • the Fig. 5 b again discloses a pressurized tubing 17 which is longitudinally disposed on one side of the slot 6 and movable against a support wall 18 on the other side of the slot after inflation with compressed air.
  • a closure of a suction slot can also be done when coaxial on the inside of the suction tube 5 a sealing Versch760rohr 19 is disposed rotatable relative to the suction tube 5 and the Verschdalerohr 19 according to the arrangement of the suction 6 through holes 6 'and after rotation one or the other of Suction slots 6 closing covers.
  • FIGS. 6 and 7 reveal possible solutions that are arranged in the lateral wall 7, 8 of the suction slot 9.
  • a recess 20 in which a pivoting mechanism is mounted.
  • This possibly conical lever 21 is mounted along the suction slot and pivotable along its axis.
  • the pivoting could be done electrically, but other modes are conceivable.
  • the Fig. 7 discloses a sliding mechanism. Radially inwardly of the cleaning strip 9 'is perpendicular to the suction slot 9 in both sides in the walls 7, 8 recesses 7', 8 'provided a Versch95schiene 22 along its extension has a passage slot 23 for the extracted liquid. On both sides along the Versch95schiene 22 a plurality of piston units 24 are provided which are preferably hydraulically driven to move the rail 22 in the recesses 7 ', 8'. In the illustrated position, the suction slot 9 is skewed by the rail 22, moved laterally to the right passes the passage slot with the suction slot 9 in cover and the function of the suction is guaranteed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • External Artificial Organs (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The suction unit at a water jet needling machine, to bond nonwoven fabrics and the like, has a suction tube with a number of axially aligned suction openings for each water beam. The suction openings along the whole working width can be closed in relation to their associated water beams, by a shoe moving through the tube without any openings. At the sliding mechanism a closure rail (22) is in horizontal recesses (7',8') in the vertical walls (7,8) flanking the suction slit (9), radially inwards from the cleaning bar, with a slit passage (23) for the extracted water. Piston units (24) are on both sides of the closure rail, along its length, with a hydraulic drive action to push the rail into the recesses.

Description

Die Erfindung bezieht sich auf eine Absaugvorrichtung für Flüssigkeiten insbesondere an Wasservernadelungsmaschinen, bei der der Absaugeinrichtung außerhalb mehr als ein Wasserbalken zur Erzeugung von Flüssigkeitsstrahlen zugeordnet ist, bestehend aus einem Absaugrohr mit einem oder mehreren über die Arbeitslänge des Rohres angeordneten, axial ausgerichteten Absaugöffnungen für jeden Wasserbalken, durch die die Flüssigkeit aus dem zugeordneten Wasserbalken aufgrund des im Rohr erzeugten Unterdrucks abgesaugt wird. Eine Vorrichtung dieser Art ist durch die EP-A-1 059 377 oder die WO 01/79598 bekannt.The invention relates to a suction device for liquids in particular at water needling machines, wherein the suction device is assigned outside more than a water beam for generating liquid jets, consisting of a suction tube with one or more over the working length of the tube arranged axially aligned suction for each water bar through which the liquid is sucked out of the associated water bar due to the negative pressure generated in the pipe. A device of this kind is by the EP-A-1 059 377 or the WO 01/79598 known.

Es ist üblich einer Vernadelungstrommel mit innen angeordnetem Absaugrohr mehrere Wasserbalken zuzuordnen, wobei jedem Wasserbalken ein Absaugschlitz, der auch aus mehreren Absaugöffnungen bestehen kann, im Absaugrohr zugeordnet ist. Das Absaugrohr ist unter Unterdruck gesetzt, um die aufgespritzte Flüssigkeit abzuführen. Der Unterdruck wirkt auf alle im Absaugrohr eingebrachten Absaugschlitze. In Folge steht auch der Absaugschlitz unter Unterdruck, dessen zugeordneter Wasserbalken ausgeschaftet ist. Dies führt zu Druckverlusten, die zu vermeiden sind.It is customary to assign a needling drum with internally arranged suction tube a plurality of water bars, each water bar is associated with a suction slot, which may also consist of several suction in the suction tube. The suction tube is under negative pressure to dissipate the sprayed liquid. The negative pressure acts on all suction slots in the suction tube. As a result, the suction slot is under negative pressure, the assigned water bar is geschaftet. This leads to pressure losses that are to be avoided.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zu entwickeln, mit der Energieverluste bei vorgesehenen, aber abgeschalteten Wasserbalken vermieden sind.The invention has for its object to develop a device with the energy losses are avoided in planned, but disconnected water bar.

Ausgehend von der Vorrichtung anfangs genannter Art, ist die Lösung der gestellten Aufgaben darin zu sehen, wenn die über die ganze Arbeitsbreite sich erstreckenden Absaugöffnungen mit Bezug auf den einen jeweils zugeordneten Wasserbalken verschließbar ausgebildet sind. Der Schließmechanismus ist auf verschieden Art ausführbar.Starting from the device of the type mentioned initially, the solution of the stated tasks is to be seen in the fact that over the entire working width extending suction with respect to a respective associated water bar are formed closed. The locking mechanism can be executed in different ways.

Mehrere Vorrichtungen der erfindungsgemäßen Art sind in der Zeichnung beispielhaft dargestellt. Es zeigen:

Fig. 1
Im Querschnitt eine Trommel zur hydrodynamischen Vernadelung einer Waren- bahn mit nur einem Düsenbalken,
Fig. 2
im Querschnitt eine Verschließklappe auf der Innenseite des Absaugrohres,
Fig. 3
in der Draufsicht die Klappe nach Fig. 2,
Fig. 4
im Querschnitt eine Verschließklappe anderer Konstruktion,
Fig. 5
a - c andere Lösungsmöglichkeiten jeweils nur prinzipiell im Querschnitt,
Fig. 6
a - b eine längs der Achse des Absaugschlitzes verschwenkbare Klappe und
Fig. 7
a - b eine seitlich des Absaugschlitzes verschiebbare, über die Länge des Absaugschlitzes sich erstreckende Verschließschiene.
Several devices of the type according to the invention are shown by way of example in the drawing. Show it:
Fig. 1
In cross-section, a drum for the hydrodynamic needling of a goods web with only one nozzle bar,
Fig. 2
in cross-section a closing flap on the inside of the suction tube,
Fig. 3
in the plan view the flap after Fig. 2 .
Fig. 4
in cross-section a closure flap of other construction,
Fig. 5
a - c other possible solutions only in principle in cross section,
Fig. 6
a - b a flap which can be pivoted along the axis of the suction slot and
Fig. 7
a - b a side of the suction slidable, over the length of the suction slit extending locking rail.

Die Absaugeinrichtung besteht aus einer flüssigkeitsdurchlässigen, drehbar gelagerten Trommel 1, auf der das zu vernadelnde Gut 2 aufliegt. Der Trommel 1 ist hier oberhalb nur ein Wasserbalken 3 zugeordnet, aus dem die Wasserstrahlen 4 unter Hochdruck austreten und gegen das Gut 2 treffen. Entsprechend können mehrere Wasserbalken 3 rund um die Trommel 1 angeordnet sein. Das aufgespritzte Wasser ist unmittelbar anschließend unterhalb des Gutes 2 jeweils abzusaugen. Dazu ist innerhalb der Trommel 1 zentrisch ein Absaugrohr 5 ortsfest gelagert, in dessen Wandung längs einer Mantellinie Absaugbohrungen 6 jedem Wasserbalken 3 zugeordnet eingebracht sind. Rechst und links dieser Bohrungen 6 sind parallel zu der Mantellinie radial außerhalb des Rohres 5 Gleitleisten 7, 8 zur Bestimmung der Breite des Absaugschlitzes 9 ortsfest angeordnet.The suction device consists of a liquid-permeable, rotatably mounted drum 1, on which the material 2 to be needled rests. The drum 1 is assigned here above only a water bar 3, from which the water jets 4 emerge under high pressure and hit the Good 2. Accordingly, a plurality of water bars 3 may be arranged around the drum 1. The sprayed-on water must be sucked off immediately below the material 2. For this purpose, a suction tube 5 is centrally mounted within the drum 1, in whose wall along a surface line extraction holes 6 each water bar 3 are placed assigned. Right and left of these holes 6 are parallel to the surface line radially outside the tube 5 slide strips 7, 8 arranged to determine the width of the suction slot 9 stationary.

Der Absaugschlitz 9 soll kurzzeitig verschließbar ausgebildet sein. Da gibt es zunächst die Lösung nach der EP-A-1 059 377 mit der auswechselbaren Reinigungsleiste 9' nach Fig. 7a, in der etwa mittig die Absaugöffnungen eingebracht sind. Es ist der Absaugschlitz dort verschließbar, indem man eine Leiste einschiebt, in der die Absaugöffnungen fehlen, also ein massiver Schuh. Dieser Verschluss ist aber nur im Stillstand der Maschine möglich.The suction slot 9 should be designed to be closed for a short time. There is first the solution after the EP-A-1 059 377 with the interchangeable cleaning strip 9 'after Fig. 7a , in which the suction openings are introduced approximately in the middle. It is the suction slot there closed by inserting a bar in which the suction openings are missing, so a massive shoe. This closure is only possible when the machine is at a standstill.

Die Fig. 2 zeigt das Absaugrohr 5, dessen Absaugöffnungen 6 auf der Innenseite des Rohres 5 eine seitlich verschiebbare Klappe 10 zugeordnet ist. Diese Klappe 10 ist am Absaugrohr 5 mittels einer Lagerung 11 lösbar gehalten. Die Klappe 10 ist über eine aus Fig. 3 ersichtliche Anzahl von Gelenkarmen 12 schwenkbar derart gelagert, dass beim Verschwenken der Gelenkarme 12 die Klappe 10 sich in Richtung des Stützblocks 11' auf der anderen Seite des Absaugschlitzes 6 bewegt. Damit ist der Absaugschlitz 6 durch die Klappe 10 verschlossen. Die Betätigung der Klappenbewegung ist durch einen Druckzylinder 13 ermöglicht.The Fig. 2 shows the suction tube 5, the suction openings 6 on the inside of the tube 5 is associated with a laterally displaceable flap 10. This flap 10 is detachably held on the suction tube 5 by means of a bearing 11. The flap 10 is over a out Fig. 3 apparent number of articulated arms 12 pivotally mounted such that upon pivoting of the articulated arms 12, the flap 10 moves in the direction of the support block 11 'on the other side of the suction slot 6. Thus, the suction slot 6 is closed by the flap 10. The actuation of the flap movement is made possible by a pressure cylinder 13.

Bei der Lösung nach der Fig. 4 hält die Lagerung 11 eine in Richtung des Doppelpfeils 14 auch aufwärts schwenkbare Klappe 10', die den Absaugschlitz 6 mit einem Gegenprofil 11' verschließt. Die Betätigung der Klappe 10' kann durch einen Druckschlauch 15 erfolgen, der über die Länge des Absaugschlitzes 5 in der Lagerung 11 gehalten ist. Steht er unter Luftdruck so dehnt er sich aus und bewegt die Klappe 10' mit dem freien Ende nach oben zum Verschließen des Absaugschlitzes 6.In the solution after the Fig. 4 holds the storage 11 in the direction of the double arrow 14 also upwardly pivotable flap 10 ', which closes the suction slot 6 with a counter-profile 11'. The actuation of the flap 10 'can be effected by a pressure hose 15, which is held over the length of the suction slot 5 in the storage 11. If he is under atmospheric pressure, he expands and moves the flap 10 'with the free end up to close the suction slot. 6

In einer einfacheren, prinzipmäßig dargestellten Lösung ist gemäß Fig. 5 a auf der Innenseite des Absaugrohres lediglich eine Längsklappe 16 vorgesehen, die mit einem nicht dargestellten Mechanismus zum Verschließen aufwärts gegen die Öffnung 6 bewegbar ist. Die Fig. 5 b offenbart wiederum einen unter Druck zu setzenden Schlauch 17, der auf der einen Seite des Schlitzes 6 längs angeordnet und gegen eine Stützwandung 18 auf der anderen Seite des Schlitzes nach Aufblasen mit Druckluft bewegbar ist. Ein Verschluss eines Absaugschlitzes kann aber auch erfolgen, wenn auf der Innenseite des Absaugrohres 5 koaxial ein abdichtendes Verschließrohr 19 verdrehbar gegenüber dem Absaugrohr 5 angeordnet ist und das Verschließrohr 19 entsprechend der Anordnung der Absaugschlitze 6 Durchgangsöffnungen 6' aufweist und nach Drehung das eine oder andere der Absaugschlitze 6 schließend abdeckt.In a simpler, principle illustrated solution is according to Fig. 5 a on the inside of the suction tube only a longitudinal flap 16 is provided, which is movable with a mechanism, not shown, for closing up against the opening 6. The Fig. 5 b again discloses a pressurized tubing 17 which is longitudinally disposed on one side of the slot 6 and movable against a support wall 18 on the other side of the slot after inflation with compressed air. But a closure of a suction slot can also be done when coaxial on the inside of the suction tube 5 a sealing Verschließrohr 19 is disposed rotatable relative to the suction tube 5 and the Verschließrohr 19 according to the arrangement of the suction 6 through holes 6 'and after rotation one or the other of Suction slots 6 closing covers.

Die Figuren 6 und 7 offenbaren Lösungsmöglichkeiten, die in den seitlichen Wandung 7, 8 des Absaugschlitzes 9 angeordnet sind. Nach Fig. 6 ist in einer der Wandungen 8 eine Aussparung 20 in der ein Verschwenkmechanismus gelagert ist. Dieser ggf. konisch ausgebildete Hebel 21 ist längs des Absaugschlitzes gelagert und längs seiner Achse verschwenkbar. Dies ist möglich mit der achsial einwärts vorgesehenen Achse gemäß Fig. 6 a oder achsial auswärts gelagerten Achse gemäß Fig. 6 b. Die Verschwenkung könnte elektrisch erfolgen, aber auch andere Betriebsarten sind denkbar.The FIGS. 6 and 7 reveal possible solutions that are arranged in the lateral wall 7, 8 of the suction slot 9. To Fig. 6 is in one of the walls 8, a recess 20 in which a pivoting mechanism is mounted. This possibly conical lever 21 is mounted along the suction slot and pivotable along its axis. This is possible with the axle provided inwardly in accordance with Fig. 6 a or axially outwardly mounted axis according to Fig. 6 b. The pivoting could be done electrically, but other modes are conceivable.

Die Fig. 7 offenbart ein Schiebemechanismus. Radial einwärts der Reinigungsleiste 9' ist senkrecht zum Absaugschlitz 9 in beidseitig in die Wandungen 7, 8 eingebrachten Aussparungen 7', 8' eine Verschließschiene 22 vorgesehen, die längs ihrer Erstreckung einen Durchtrittsschlitz 23 für die abgesaugte Flüssigkeit aufweist. Auf beiden Seiten längs über die Verschließschiene 22 sind mehrere Kolbeneinheiten 24 vorgesehen, die zum Verschieben der Schiene 22 in den Aussparungen 7', 8' vorzugsweise hydraulisch angetrieben sind. In der dargestellten Stellung ist der Absaugschlitz 9 durch die Schiene 22 versprerrt, seitlich nach rechts verschoben gelangt der Durchtrittsschlitz mit dem Absaugschlitz 9 in Deckung und die Funktion der Absaugung ist gewährleistet.The Fig. 7 discloses a sliding mechanism. Radially inwardly of the cleaning strip 9 'is perpendicular to the suction slot 9 in both sides in the walls 7, 8 recesses 7', 8 'provided a Verschließschiene 22 along its extension has a passage slot 23 for the extracted liquid. On both sides along the Verschließschiene 22 a plurality of piston units 24 are provided which are preferably hydraulically driven to move the rail 22 in the recesses 7 ', 8'. In the illustrated position, the suction slot 9 is skewed by the rail 22, moved laterally to the right passes the passage slot with the suction slot 9 in cover and the function of the suction is guaranteed.

Claims (18)

  1. Suction device for liquids, especially in hydroentanglement machinery, outside of which more than one jet head (3) for generation of liquid jets is arranged, consisting of a suction tube (5) with one or more suction openings (6) for each jet head (3), arranged over the working width of the tube (5) in axial direction, through which the liquid of the assigned jet head (3) is sucked off as a result of the vacuum generated inside the tube (5), characterized in that the suction openings (6) extending over the entire working width are designed in such a way that they can be closed toward the respective assigned jet head (3).
  2. Suction device in conformity with claim 1, characterized in that the closure can be activated during operation of the device.
  3. Suction device in conformity with claim 1 with a shoe defining the suction gap which can be inserted into the suction tube in longitudinal direction, characterized in that the shoe is closed, thus not containing any suction openings.
  4. Suction device in conformity with claims 1 & 2, characterized in that the closing mechanism for the suction openings is arranged on the inside of the suction tube (5).
  5. Suction device in conformity with claims 1 & 2, characterized in that the closing mechanism is incorporated in the material of the wall(s) (7, 8) forming the suction slot.
  6. Suction device in conformity with claims 4 or 5, characterized in that the suction openings (6) can be closed by means of a flap (10, 10', 16) that can be moved across the suction openings.
  7. Suction device in conformity with claim 6, characterized in that the flap (10) is provided with several links on one side of the suction slot (6) along the working width of the suction slot (6) and supported in such a way that it can be moved in parallel.
  8. Suction device in conformity with claim 6, characterized in that the axis of the flap (21) is aligned in parallel with the suction slot (9) and that the flap can be pivoted back and forth.
  9. Suction device in conformity with claim 8, characterized in that the axis is situated radially inward in the wall and that the flap extends radially outward (Fig. 6a).
  10. Suction device in conformity with claim 8, characterized in that the axis is situated radially outward in the wall and that the flap extends radially inward (Fig. 6b).
  11. Suction device in conformity with one of the preceding claims, characterized in that the closing mechanism can be actuated pneumatically (13, 15, 17).
  12. Suction device in conformity with one of the preceding claims, characterized in that the closing mechanism (22, 23) can be actuated hydraulically (24).
  13. Suction device in conformity with claim 11, characterized in that the closing mechanism can be actuated by an inflatable hose (15, 17) arranged along the suction slot (6).
  14. Suction device in conformity with claim 13, characterized in that a flap (10') can be moved by the hose (15) in front of the suction slot (6).
  15. Suction device in conformity with claim 13, characterized in that the hose (17) is situated on one side of the suction slot (6) and can be inflated across the suction slot against a support wall (18) to close the slot (6).
  16. Suction device in conformity with claim 4, characterized in that, inside the suction tube (5), a sealing closing tube (19) is situated coaxially in such a way that it can be rotated in relation to the suction tube (5), the closing tube (19) being provided with through openings (6') that correspond with the arrangement of the suction slots (6), covering and closing either one of the suction slots (6) when being turned.
  17. Suction device in conformity with claim 5, characterized in that a closing bar (22) with flow slot (23) that can be moved laterally to and fro is arranged along the suction slot (9) in the walls (7, 8) of the suction slot (9), with the flow slot (23) being either aligned with the suction slot (9) or not aligned when moved to the side, thus being covered and closing the suction slot.
  18. Suction device in conformity with claim 17, characterized in that the closing bar (22) is connected over its length to several pressure pistons (24), which can be actuated from both sides and are supported in the walls (7, 8) of the suction slot (9).
EP20040804513 2003-12-18 2004-11-04 Suction device for liquids, in particular in hydroentangling machines Expired - Lifetime EP1697571B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04804513T PL1697571T3 (en) 2003-12-18 2004-11-04 Suction device for liquids, in particular in hydroentangling machines

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10359916 2003-12-18
DE200410030918 DE102004030918A1 (en) 2003-12-18 2004-06-25 Suction unit for a water needle jet system, to bond nonwoven fabrics and the like, has a sliding mechanism to close the suction openings at water beams not in use
PCT/EP2004/052809 WO2005059217A1 (en) 2003-12-18 2004-11-04 Suction device for liquids, in particular in hydroentangling machines

Publications (2)

Publication Number Publication Date
EP1697571A1 EP1697571A1 (en) 2006-09-06
EP1697571B1 true EP1697571B1 (en) 2009-02-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040804513 Expired - Lifetime EP1697571B1 (en) 2003-12-18 2004-11-04 Suction device for liquids, in particular in hydroentangling machines

Country Status (9)

Country Link
US (1) US7657982B2 (en)
EP (1) EP1697571B1 (en)
JP (1) JP2007514875A (en)
CN (1) CN1894454B (en)
AT (1) ATE422574T1 (en)
DE (2) DE102004030918A1 (en)
ES (1) ES2319658T3 (en)
PL (1) PL1697571T3 (en)
WO (1) WO2005059217A1 (en)

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DE202010016908U1 (en) * 2010-12-22 2011-12-29 Trützschler Nonwovens Gmbh Device for cleaning a nozzle strip for water jet needling systems
DE102012110741A1 (en) * 2012-11-09 2014-05-15 TRüTZSCHLER GMBH & CO. KG Device for the hydrodynamic consolidation of nonwovens, woven or knitted fabrics
DE102013101431B4 (en) * 2013-02-13 2016-06-23 TRüTZSCHLER GMBH & CO. KG Apparatus and method for the hydrodynamic consolidation of nonwovens, fabrics and knitted fabrics
ES2880678T3 (en) * 2017-10-10 2021-11-25 Groz Beckert Kg Device and method for manufacturing a support part that has several fiber bundles
DE202018107163U1 (en) * 2018-12-14 2020-03-13 Autefa Solutions Germany Gmbh Jet suction box
CN114875581B (en) * 2022-06-14 2023-02-24 绍兴舒洁雅无纺材料有限公司 Non-woven fabrics water thorn system
DE202022103600U1 (en) 2022-06-29 2023-10-06 Autefa Solutions Germany GmbH Jet suction box

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US7657982B2 (en) 2010-02-09
US20080168636A1 (en) 2008-07-17
JP2007514875A (en) 2007-06-07
WO2005059217A1 (en) 2005-06-30
CN1894454A (en) 2007-01-10
PL1697571T3 (en) 2009-07-31
CN1894454B (en) 2011-06-08
EP1697571A1 (en) 2006-09-06
DE102004030918A1 (en) 2005-07-21
ATE422574T1 (en) 2009-02-15
DE502004008988D1 (en) 2009-03-26
ES2319658T3 (en) 2009-05-11

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