EP1478469B1 - Mit einem dünnen dichtungsträger versehene vorrichtung zur erzeugung von wasserstrahlen - Google Patents

Mit einem dünnen dichtungsträger versehene vorrichtung zur erzeugung von wasserstrahlen Download PDF

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Publication number
EP1478469B1
EP1478469B1 EP03720621A EP03720621A EP1478469B1 EP 1478469 B1 EP1478469 B1 EP 1478469B1 EP 03720621 A EP03720621 A EP 03720621A EP 03720621 A EP03720621 A EP 03720621A EP 1478469 B1 EP1478469 B1 EP 1478469B1
Authority
EP
European Patent Office
Prior art keywords
seal
contact
perforated plate
seal support
end parts
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
EP03720621A
Other languages
English (en)
French (fr)
Other versions
EP1478469A1 (de
Inventor
Frédéric NOELLE
Christian Decolin
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.)
Rieter Perfojet SAS
Original Assignee
Rieter Perfojet SAS
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 Rieter Perfojet SAS filed Critical Rieter Perfojet SAS
Publication of EP1478469A1 publication Critical patent/EP1478469A1/de
Application granted granted Critical
Publication of EP1478469B1 publication Critical patent/EP1478469B1/de
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor

Definitions

  • the present invention relates to a device for jetting water jets, useful in particular for the hydraulic bonding of fibers into nonwovens.
  • This binding consists of sending a curtain of pressurized water jets onto a sheet of fibers to entangle them and form them into a coherent sheet, without requiring the use of binder or resin. It is also possible to bind sheet material, such as textile complexes, films, paper, fabrics, knits.
  • DE-A 19 921 694 describes a device for projecting water jets, comprising a pressure-resistant body and delimiting an interior chamber having an inlet and communicating, with the interposition of a perforated plate, with an outlet opening outside the body, the face of the perforated plate facing the outlet being in contact with a first seal housed in a first part of a seal holder having a slot facing the outlet, a second seal housed in the seal holder being in contact with the body.
  • the invention is remedied by a device for projecting water jets, which, while being able to be mounted and maintained easily, is of great efficiency.
  • said first portion of the seal holder in contact with the perforated plate has, at least near the slot, a thickness of less than 10 mm.
  • the thickness of the middle portion in the vicinity of the slot is at least 2 mm, so that the seal carrier has sufficient strength.
  • the thickness is between 3 and 6 mm.
  • the seal holder is slidably mounted in the body parallel to the axis of the inner chamber.
  • said first portion is a medial portion and is continued by two thicker end portions whose thickness extends towards the inner chamber.
  • the two end portions are respectively in contact with the longitudinal slices of the perforated plate and hold it.
  • the two end portions penetrate at their free end into guide grooves of the seal holder, formed in the body.
  • the body extends between the two thick parts of the seal carrier and the spacer so that it, despite the thinness of the middle portion, retains its shape even when it is subjected to large pressure forces.
  • the seal holder is U-shaped whose two branches form the end portions and the core the middle portion.
  • the seals are preferably annular seals of rectangular shape with rounded peaks.
  • the second seal is in contact with the first part of the seal carrier.
  • the invention also relates to a fiber binding installation in a nonwoven, comprising a cylinder on which the fibers to be bonded can pass and a device according to the invention whose jets are directed on the side face of the cylinder.
  • the jets projection device comprises a parallelepiped body 1 having two large faces 2, 3 opposite, two opposite small faces 4.5, and two opposite end faces 6.
  • the body 1 is made of steel.
  • both front faces 6 are provided unrepresented connectors constituting an inlet communicating with a source of pressurized water that is not shown.
  • a cylindrical filter 9 of the same shape as the chamber 7, but of smaller diameter.
  • the face 5 of the body consists of a jaw 10 which is screwed to the rest of the body 1 by screws 11.
  • the jaw 10 delimits a cavity in which is housed a seal holder 14 made of metal, plastic or composite material, composed of a median part or core of 4 mm of annular thickness 15 of a thickness of 5 mm and two branches 16, 17 lateral (end portions) extending parallel to the axis 8 and thicker e greater than that of the core 15.
  • the two parts 16,17 are in contact with the longitudinal edges (Parallel to the axis 8) of the perforated plate 23
  • the seal holder 14 has a longitudinal slot 18 passing opposite the channel 12 and the outlet 13. On either side of the slot 18, the seal holder 14 comprises a groove 19 facing the chamber 7 and in which is housed a rectangular joint 20 with rounded vertices.
  • the seal holder 14 comprises an annular groove 21 as the groove 19 and in which is housed a second annular seal 22.
  • the seal 20 is closer to the slot 18 than the seal 22.
  • a plate 23 perforated microperforations whose diameter is between 50 and 500 microns and preferably between 100 and 200 microns which makes it possible to form jets or needles of water. These perforations are arranged in a row or two rows parallel to the axis 8 and facing the slot 18.
  • the seal holder 23 can slide in its housing parallel to the axis 8 the branches 16,17 passing in grooves 24 formed in the body 1 and be removed from the device, after a plug 26 has been removed. The same is true of the perforated plate 23.
  • the solid part of the body 1 between the grooves 24 serves as a spacer and thus maintains the shape of the seal holder 14 despite its thinness by preventing it from closing when subjected to pressure forces.
  • the free ends of the end portions 16, 17 of the seal carrier are at a distance from the bottom of the grooves 24.

Claims (9)

  1. Vorrichtung zur Erzeugung von Wasserstrahlen, aufweisend einen druckfesten Körper (1), der eine innere Kammer (7) begrenzt, die einen Eingang hat und über eine dazwischen angeordnete perforierte Platte (23) mit einem Ausgang (13), der zum Äußeren des Körpers (1) mündet, verbunden ist, wobei die Seite der perforierten Platte (23), die in Richtung des Ausgang (13) gerichtet ist, mit einer ersten Dichtung (20) in Kontakt ist, die in einem ersten Abschnitt (15) eines Dichtungsträgers (21) gelegen ist, der beim Ausgang (13) einen Spalt (18) aufweist, eine zweite Dichtung (22), die in dem Dichtungsträger (21) gelegen ist, in Kontakt mit dem Körper (1) ist, dadurch gekennzeichnet, dass besagter erster Abschnitt (15) des Dichtungsträgers (21), der mit der perforierten Platte (23) in Kontakt ist, zumindest nahe des Spalts (18) eine Dicke kleiner als 10 mm hat.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass besagter erster Abschnitt des Dichtungsträgers eine Dicke zwischen 2 und 10 mm hat.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass besagter erster Abschnitt in zwei dickere Endabschnitte (16, 17) übergeht, deren Dicke sich in Richtung der inneren Kammer (7) vergrößert.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die beiden Endabschnitte (16, 17) in Kontakt mit jeweils den Längskanten der perforierten Platte (23) sind.
  5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass sich die beiden Endabschnitte (16, 17) an ihren freien Enden in Nuten (24) zur Führung und zur Aufrechterhaltung der Form des in dem Körper (1) eingerichteten Dichtungsträgers (21) erstrecken.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Enden (25) der Endabschnitte (16, 17) von dem Boden der Nuten (24) beabstandet sind.
  7. Vorrichtung nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, dass der Dichtungsträger (21) die Form eines U aufweist, dessen beiden Schenkel (16, 17) die Endabschnitte bilden und der Steg (15) den Mittelabschnitt bildet.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Dichtung (22) in Kontakt mit dem ersten Abschnitt (15) des Dichtungsträgers (21) ist.
  9. Anordnung zur Wasserstrahlverfestigung eines Vliesstoffes, die einen Zylinder und eine Vorrichtung zur Erzeugung von Wasserstrahlen aufweist, deren Strahlen auf die Seitenfläche des Zylinders gerichtet sind, dadurch gekennzeichnet, dass diese Vorrichtung nach einem der vorhergehenden Ansprüche ausgestaltet ist.
EP03720621A 2002-02-19 2003-02-18 Mit einem dünnen dichtungsträger versehene vorrichtung zur erzeugung von wasserstrahlen Expired - Lifetime EP1478469B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0202069A FR2836075B1 (fr) 2002-02-19 2002-02-19 Dispositif de projection de jets d'eau a porte-joint mince
FR0202069 2002-02-19
PCT/FR2003/000519 WO2003070379A1 (fr) 2002-02-19 2003-02-18 Dispositif de projection de jets d'eau a porte-joint mince.

Publications (2)

Publication Number Publication Date
EP1478469A1 EP1478469A1 (de) 2004-11-24
EP1478469B1 true EP1478469B1 (de) 2006-07-12

Family

ID=27636298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03720621A Expired - Lifetime EP1478469B1 (de) 2002-02-19 2003-02-18 Mit einem dünnen dichtungsträger versehene vorrichtung zur erzeugung von wasserstrahlen

Country Status (9)

Country Link
US (1) US7156327B2 (de)
EP (1) EP1478469B1 (de)
JP (1) JP4418239B2 (de)
CN (1) CN1317080C (de)
AT (1) ATE332755T1 (de)
AU (1) AU2003224201A1 (de)
DE (1) DE60306752T2 (de)
FR (1) FR2836075B1 (de)
WO (1) WO2003070379A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004459B3 (de) * 2006-01-30 2007-06-21 Fleissner Gmbh Vorrichtung zum Montieren einer länglichen Dichtung oder eines O-Rings in ein Aufnahmeteil eines Düsenbalkens
FR2902035B1 (fr) * 2006-06-13 2008-08-08 Rieter Perfojet Soc Par Action Outil de mise en place d'un joint dans une gorge, notamment pour dispositifs de projection de jet d'eau
EP2302120B1 (de) * 2009-09-22 2012-06-20 Groz-Beckert KG Injektor für eine Textilbearbeitungsmaschine
IT202000024976A1 (it) * 2020-10-22 2022-04-22 Vincenzo Penati Sistema per l’umettamento di fogli di carta

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613999A (en) * 1970-04-29 1971-10-19 Du Pont Apparatus for jetting liquid onto fibrous material
US5042722A (en) * 1987-07-13 1991-08-27 Honeycomb Systems, Inc. Apparatus for jetting high velocity liquid streams onto fibrous materials
GB2259029B (en) * 1991-08-29 1995-04-26 Hozelock Ltd Water spray gun
US6000626A (en) * 1998-01-12 1999-12-14 Waxman Consumer Products Group, Inc. Hand operated water sprayer and soap dispenser
DE19921694A1 (de) 1999-05-12 2000-11-16 Fleissner Maschf Gmbh Co Düsenbalken an einer Vorrichtung zur Erzeugung von Flüssigkeitsstrahlen
US6164566A (en) * 1999-09-15 2000-12-26 Hui-Chen; Chao Water ejecting structure of pistol nozzle

Also Published As

Publication number Publication date
AU2003224201A1 (en) 2003-09-09
CN1635931A (zh) 2005-07-06
US7156327B2 (en) 2007-01-02
EP1478469A1 (de) 2004-11-24
FR2836075B1 (fr) 2004-04-23
JP4418239B2 (ja) 2010-02-17
JP2005517830A (ja) 2005-06-16
DE60306752T2 (de) 2007-07-12
CN1317080C (zh) 2007-05-23
FR2836075A1 (fr) 2003-08-22
WO2003070379A1 (fr) 2003-08-28
ATE332755T1 (de) 2006-08-15
US20050082398A1 (en) 2005-04-21
DE60306752D1 (de) 2006-08-24

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