EP2387470B1 - Dispositif de projection de jets d'eau par une plaquette perforée courbée - Google Patents

Dispositif de projection de jets d'eau par une plaquette perforée courbée Download PDF

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Publication number
EP2387470B1
EP2387470B1 EP09737039.9A EP09737039A EP2387470B1 EP 2387470 B1 EP2387470 B1 EP 2387470B1 EP 09737039 A EP09737039 A EP 09737039A EP 2387470 B1 EP2387470 B1 EP 2387470B1
Authority
EP
European Patent Office
Prior art keywords
perforations
longitudinal
plate
wafer
water
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.)
Active
Application number
EP09737039.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2387470A1 (fr
Inventor
Christian Decolin
Florent Veillet
Frédéric NOELLE
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.)
Andritz Perfojet SAS
Original Assignee
Andritz 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 Andritz Perfojet SAS filed Critical Andritz Perfojet SAS
Priority to EP13005660.9A priority Critical patent/EP2712679B1/fr
Publication of EP2387470A1 publication Critical patent/EP2387470A1/fr
Application granted granted Critical
Publication of EP2387470B1 publication Critical patent/EP2387470B1/fr
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Anticipated expiration legal-status Critical

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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
    • 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets

Definitions

  • the present invention relates to devices for jetting water jets, particularly useful for the hydraulic bonding of nonwoven fibers.
  • This bonding consists in sending a curtain of pressurized water jets formed by a perforated wafer on a fiber web to entangle them and form them in a coherent web, without requiring the use of binder or resin.
  • the minimum distance between jets from elsewhere difficult to obtain is slightly less than 0.5 mm. This manufacturing limit is due to mechanical reasons, since it must necessarily have a minimum of material between each perforation so that the wafer has a mechanical strength correct in time. There is therefore a distance between each jet line marking on the nonwoven slightly less than 0.5 mm, this distance corresponding to the distance between each perforation of the wafer.
  • the invention provides for this by a device for jetting water jets, easy to machine.
  • the water spray device comprises a body defining a chamber and delimiting a longitudinal outlet on the outside, a single plate, in one piece and provided with perforations being interposed between the chamber and the outlet, being supported. by two longitudinal spans as described in WO 03/07038 .
  • the two longitudinal bearings are curved along a curved surface the same longitudinal generator, which turns its concavity towards the exit.
  • the perforations are of revolution and their fictitious axis is normal to the curved surface. They are thus easy to machine.
  • the cross-sectional curve of this curved surface is preferably a circle, but it may also be constituted by the strings of a portion of a regular polygon inscribed in a circle, the axes of the perforations passing through the middle of the strings.
  • the jets of water converge at the center of the circle and the veil to be consolidated by the jets of water is preferably arranged so that the center of the circle is in the middle of the veil, the distance between the veil conveying element (T), conveyor or drum, carrying the veil and the point of the lower face of the wafer which is farthest away being generally between 10 mm and 50 mm, preferably between 20 mm and 40 mm .
  • the curved surface may also have an elliptical or parabolic cross section.
  • the perforations of the plate can to be staggered, the points of impact of the jets on the veil then succeeding on the same line in a very close manner.
  • the perforations are aligned along lines perpendicular to longitudinal rows of perforations. Usually, there are 2 to 6 rows in this case. But there can also be a single row of perforations.
  • the diameter of the perforations is generally between 50 microns and 250 microns and the distance between two adjacent perforations between 0.4 mm and 30 mm. Preferably the distance between each row of perforations is between 0.4 mm and 3 mm.
  • the wafer generally has a thickness of between 0.5 mm and 5 mm, preferably between 0.6 mm and 1.4 mm.
  • the longitudinal free edge of one of the spans is further from the chamber than the longitudinal free edge of the other span.
  • the wafer is mounted in a position where it intersects the plane of sending the water defined by the passage putting the chamber in communication with the outlet, but where it is not symmetrical with respect to this plane.
  • This arrival at an angle that can be between 70 and 90 degrees, on the sail reduces the bounces of the jets in them. orienting at best.
  • This arrival is all the better that the width of the outlet is between 1 mm and 10 mm, preferably between 2 mm and 5 mm.
  • the wafer is supported by a single wafer holder. , in one piece, the same curvature as the plate and open next to the exit.
  • the wafer holder is placed in the jets of water jet device while it supports a wafer according to the invention, while, to put a wafer of the old type the wafer holder is removed and the wafer is supported by a conventional wafer holder accommodating a flat wafer.
  • the longitudinal output device for sending water under pressure generally comprises a body and a jaw fixed to the body so as to retain the perforated plate sustained or not by a wafer holder.
  • the longitudinal chamber preferably cylindrical, is machined in the body and is supplied with water compressed by one of the end faces.
  • the longitudinal passage for sending water under pressure on the perforated plate extends over the entire longitudinal dimension of the body and opens into a distribution chamber defined by the jaw and in which the plate is supported, the jaw defining below. of the wafer the exit opening of the jets towards a veil conveying means, generally an endless perforated conveyor belt or a perforated drum.
  • the median longitudinal plane of the outlet is inclined relative to the median longitudinal plane of the passage.
  • the invention also relates to an installation for consolidating a nonwoven by jets of water comprising a transport element (T) of the nonwoven in front of a jet projection device.
  • the device is as in the invention and the smallest distance between the transport element and the point of the lower face of the wafer furthest from the transport element is between 10 mm and 50 mm.
  • the one-piece plate represented in the figure 1 is substantially rectangular, but is precurved along a curved surface turning its concavity downward.
  • the plate 1 made of stainless steel has two rows of perforations whose fictitious axes 2 are normal to the arc of the wafer 1 rotating its convexity upwards.
  • the fictitious axes 2 illustrate the path of the jets of water converging at point A.
  • the water spray device comprises a body 4 consisting of a body itself and a jaw 5 steel fixed below the body in a sealed manner.
  • a cylindrical water supply chamber 6 at a pressure of 400 bar, the water supply source communicating with the chamber 6 by a front end of the body 4 which is above the plane of the blueprint.
  • This single chamber 6 communicates through a single longitudinal passage 7 'extending over the entire longitudinal extent of the body. but closed on both front faces.
  • This passage opens into a space defined by the two parts of the jaw at the bottom of which is the single wafer 1 following the figure 1 .
  • Between the two parts of the jaw 5 is defined below the wafer an outlet 7 through which the jets 2 of water can out of the water jet device.
  • the jaw On either side of the outlet 7, the jaw defines two bearing surfaces 3 curved along a curved surface which turns its concavity towards the outlet 7.
  • the two bearing surfaces 3 are defined by the same longitudinal generatrix. They face the room 6 and are on both sides of the passage 7 '.
  • the water jet projection device shown in FIG. figure 3 differs from that shown in figure 2 in that the wafer 1 is flat, but is sufficiently flexible to bend under the effect of the pressure of water, so that it matches the curved shape of a single wafer holder 8, a only holding, which, just like the plate 1, extends over the entire longitudinal dimension of the device for jetting water jets.
  • the upper face of this holder-plate 8 has a curved surface that the wafer 1 wife.
  • each perforation of the middle row is disposed between two perforations of the left row.
  • Each perforation of the right row is arranged between two perforations of the central row, but also between two perforations of the left row.
  • the perforations are arranged in three rows, the perforations are aligned so not in staggered rows and the middle row gives a jet arriving perpendicularly on the web 10.
  • the wafer is constituted by three ropes 11, 12, 13 of arcs of an imaginary circle 14 of center 15 located on the nonwoven.
  • the perforations are perpendicular to the strings and their fictitious axis is perpendicular to the string 11, 12, 13.
  • the perforations are arranged in staggered rows.
  • the wafer 16 is inclined relative to the median longitudinal X plane of the chamber 6 defined by the passage 7 'and the median longitudinal Y plane of the outlet 7 is inclined relative to the median longitudinal X plane of the passage 7'.
  • the jets coming out of the wafer 16 arrive on the nonwoven web 10, supported by a rotating drum (T) in the direction of clockwise, as indicated by the arrow (F), downstream from where they would arrive if the wafer 16 was not inclined.
  • the two parts of the jaw themselves each have an inclined bearing the wafer and define an opening under the wafer for the outlet 7 of the jets.
  • the mode of realization of the figure 17 corresponds to that of the figure 16 , but this time the wafer 16 is supported by a wafer holder 17 itself having a curved surface or bearing that of the wafer, while its surface 18 by which it is supported on the jaw is a flat surface so that by replacing the wafer holder 17 with a conventional wafer holder, the jet projecting device can also be operated with a conventional planar wafer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Nozzles (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Special Spraying Apparatus (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
EP09737039.9A 2009-01-16 2009-08-28 Dispositif de projection de jets d'eau par une plaquette perforée courbée Active EP2387470B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13005660.9A EP2712679B1 (fr) 2009-01-16 2009-08-28 Plaquette perforée courbée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0900192A FR2941158B1 (fr) 2009-01-16 2009-01-16 Dispositif de projection de jets d'eau par une plaquette perforee courbee
PCT/FR2009/001043 WO2010081939A1 (fr) 2009-01-16 2009-08-28 Dispositif de projection de jets d'eau par une plaquette perforée courbee

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP13005660.9A Division-Into EP2712679B1 (fr) 2009-01-16 2009-08-28 Plaquette perforée courbée
EP13005660.9A Division EP2712679B1 (fr) 2009-01-16 2009-08-28 Plaquette perforée courbée

Publications (2)

Publication Number Publication Date
EP2387470A1 EP2387470A1 (fr) 2011-11-23
EP2387470B1 true EP2387470B1 (fr) 2015-12-23

Family

ID=40792668

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13005660.9A Active EP2712679B1 (fr) 2009-01-16 2009-08-28 Plaquette perforée courbée
EP09737039.9A Active EP2387470B1 (fr) 2009-01-16 2009-08-28 Dispositif de projection de jets d'eau par une plaquette perforée courbée

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13005660.9A Active EP2712679B1 (fr) 2009-01-16 2009-08-28 Plaquette perforée courbée

Country Status (5)

Country Link
EP (2) EP2712679B1 (zh)
CN (1) CN102271820B (zh)
ES (1) ES2562347T3 (zh)
FR (1) FR2941158B1 (zh)
WO (1) WO2010081939A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103498289B (zh) * 2013-09-29 2015-11-18 无锡纳润特科技有限公司 水刺固网机的高压水刺头
DE202014101647U1 (de) * 2014-04-08 2015-07-09 Autefa Solutions Germany Gmbh Düsenbalken
CN104233627A (zh) * 2014-09-22 2014-12-24 杭州诺邦无纺股份有限公司 仿生酶生物防护水刺材料专用微针高压水刺板
FR3059573B1 (fr) * 2016-12-02 2019-01-25 Aptar France Sas Tete de distribution de produit fluide
JP2022128872A (ja) * 2021-02-24 2022-09-05 セイコーエプソン株式会社 皮膚洗浄用液体噴射装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709112A (en) * 1952-12-08 1955-05-24 Curtice Mfg Co Inc Lawn sprinkling nozzles
US3403862A (en) * 1967-01-06 1968-10-01 Du Pont Apparatus for preparing tanglelaced non-woven fabrics by liquid stream jets
FR2802553B1 (fr) * 1999-12-17 2002-01-04 Icbt Perfojet Sa Dispositif pour le traitement de materiaux en feuille au moyen de jets d'eau sous pression
JPH10246946A (ja) * 1997-03-04 1998-09-14 Fuji Photo Film Co Ltd 画像形成装置
US6053976A (en) * 1997-05-08 2000-04-25 Fuji Photo Film Co., Ltd. Fluid injecting apparatus and method of manufacturing fluid injection apparatus
JP3890121B2 (ja) * 1997-09-05 2007-03-07 ヤマホ工業株式会社 噴霧ノズルに用いるオリフィス板の製造方法
US6253429B1 (en) * 1999-10-12 2001-07-03 Textile Enhancements International, Inc. Multi-vane method for hydroenhancing fabrics
MXPA04000186A (es) 2001-07-03 2004-10-27 Univ Brown Res Found Metodo y aparato para procesar senales opticas con superrejillas.
FR2836074B1 (fr) * 2002-02-19 2004-12-24 Rieter Perfojet Dispositif de projection de jets d'eau a porte-joint amovible
JP4439854B2 (ja) * 2002-10-08 2010-03-24 三菱レイヨン・エンジニアリング株式会社 加圧蒸気噴出ノズルと同ノズルを用いた不織布の製造方法
GB0800709D0 (en) * 2008-01-16 2008-02-20 Dunne Stephen T Double jet impinging nozzle

Also Published As

Publication number Publication date
EP2387470A1 (fr) 2011-11-23
EP2712679A1 (fr) 2014-04-02
FR2941158A1 (fr) 2010-07-23
ES2562347T3 (es) 2016-03-03
CN102271820B (zh) 2015-06-24
EP2712679B1 (fr) 2016-04-06
CN102271820A (zh) 2011-12-07
WO2010081939A1 (fr) 2010-07-22
FR2941158B1 (fr) 2014-07-18

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