EP1238133B1 - Dispositif pour le traitement de materiaux en feuille au moyen de jets d'eau sous pression - Google Patents

Dispositif pour le traitement de materiaux en feuille au moyen de jets d'eau sous pression Download PDF

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Publication number
EP1238133B1
EP1238133B1 EP00981419A EP00981419A EP1238133B1 EP 1238133 B1 EP1238133 B1 EP 1238133B1 EP 00981419 A EP00981419 A EP 00981419A EP 00981419 A EP00981419 A EP 00981419A EP 1238133 B1 EP1238133 B1 EP 1238133B1
Authority
EP
European Patent Office
Prior art keywords
inserts
plate
holes
water
pressurized 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.)
Expired - Lifetime
Application number
EP00981419A
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German (de)
English (en)
French (fr)
Other versions
EP1238133A1 (fr
Inventor
Frédéric NOELLE
Bruno Roche
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
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Filing date
Publication date
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Application filed by Rieter Perfojet SAS filed Critical Rieter Perfojet SAS
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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
    • B05B1/202—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor comprising inserted outlet elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/18—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for improving resistance to wear, e.g. inserts or coatings; for indicating wear; for handling or replacing worn parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • 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
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape

Definitions

  • the present invention relates to an improvement made to facilities for treating sheet materials using water jets under pressure, which act on matter like needles, and which are used in particular for treating nonwoven structures with a view to giving them cohesion and / or modify its appearance.
  • injector One of the essential elements of such installations is the system for forming jets or needles of water, commonly designated by the expression “ injector " .
  • the invention relates more particularly to a new type of plate perforated by such injectors and which are one of the essential elements for the formation of water jets or needles.
  • the injectors used today have a general structure as illustrated by FIG. 9 of patent US-A-3,508,308 as well as of patent US-A-3,613,999.
  • EP 400249 corresponding to US 5,054,349
  • an improved injector which not only allows water to arrive under very high pressure (greater than 100 bar) and whose structure is such that it facilitates installation and removal, for example for cleaning, of the perforated plate through which the microjets are made.
  • Figure 1 attached illustrates, in general, the structure of a injector.
  • such an assembly is therefore presented under the shape of a ramp, continuous, extending transversely to the direction of scrolling of the sheet material (F) to be treated, nonwoven for example, and the length is adapted to the width of said material.
  • This ramp consists of a main body (1), allowing it to withstand any deformation under water pressure, at the top of which is made a chamber (2), generally cylindrical in shape, supplied with water under pressure by a pump (not shown) through a pipe (3).
  • a cartridge (4) constituted by example by a perforated cylinder lined with a filter cloth, which not only plays the role of filter, but also, serves as dispatcher.
  • the pressurized water introduced inside the chamber (2) then flows through cylindrical holes (5), spaced with a regular pitch over the entire width of the injector, holes whose diameter is generally between 4 mm and 10 mm, the thickness of the wall between two consecutive holes being of the order of 3 to 5 mm.
  • These cylindrical holes (5) the outlet end of which can optionally be conical in shape, then open into a lower chamber (6) at the base of which is positioned a plate (7) comprising micro-perforations, whose diameter can be between 50 and 500 ⁇ m and preferably between 100 and 200 ⁇ m, allowing to form jets or needles of water (8) which act directly against the surface of the material (F), nonwoven web for example, at treat.
  • a plate (7) comprising micro-perforations, whose diameter can be between 50 and 500 ⁇ m and preferably between 100 and 200 ⁇ m, allowing to form jets or needles of water (8) which act directly against the surface of the material (F), nonwoven web for example, at treat.
  • Maintaining the perforated plate (7) against the main body of the injector is obtained, for example, in accordance with the teachings of EP 400249 by through longitudinal jaws (9) subjected to the action of hydraulic cylinders which make it possible to exert a clamping action by means of a set spreaders and tie rods arranged along the injector.
  • a seal (not shown) is arranged between the perforated plate (7) and the base of the main body (1).
  • the perforated plates (7) which allow the production of the jets are all made by drilling or punching fine steel strips stainless.
  • These strips have a thickness of between 0.6 and 1.2 mm.
  • Figure 2 is a sectional view of a perforated plate used to date.
  • the capillaries (10) allowing the formation of the jets are, as said previously, obtained by drilling or punching and have a general shape such that they include, if we follow the displacement of the jets, a cylindrical entry zone (11) extended by a divergent wall.
  • the drilling and punching techniques used to make the capillaries do not allow to obtain a perfect surface condition of the internal wall nor to achieve a precise and regular sharp edge at the entrance of each capillary, which, at high fluid speeds, causes a deterioration of the quality of the jets by the formation of turbulence in flow.
  • the new type of plate according to the invention allows obtain jets with a high speed, up to 300 m / sec or more, very homogeneous and regular over the entire length of the plate.
  • the inserts preferably have a thickness less than the height of the holes made in the plate.
  • said inserts can be arranged in a single row on the entire length of the plate, it is possible to arrange them in two rows parallel, the capillaries or microperforations being offset from each other others from one row to the next.
  • each insert has a zone cylindrical inlet, whose diameter is between 50 and 500 ⁇ m and of preferably 100 and 200 ⁇ m as in the case of plate microperforations earlier.
  • This cylindrical part can be extended by a divergent zone in dome or cone shape or by a sudden widening obtained by a zone of outlet of larger diameter than the inlet area.
  • the thickness of the plate will be between 1 and 3 mm, the machined holes inside which the inserts are embedded, diameter between 0.5 and 2 mm.
  • the underside of the inserts can be set back from the face bottom of the plate.
  • these new perforated plates with inserts in zirconia, sapphire, ruby or other materials of equivalent hardness, such as ceramic allow working at high pressures, with very good regularity jets with an increased lifetime for the plates, and, moreover, and surprisingly, such plates lead, in the case where nonwovens are treated, an improvement in the resistance characteristics of the products obtained.
  • the microperforated plate conforming to the invention therefore consists, like the front plates (7), of a strip of stainless steel having a thickness between 1 and 3 mm, and in which have were machined holes (12), of cylindrical section.
  • Such inserts (13) have an outside diameter corresponding to the diameter of the holes (12) and which is therefore between 0.5 to 2 mm.
  • the thickness of the inserts is less than the thickness of the plate (7) so that they are set back by relative to the underside (14) of the plate when said inserts (13) have been put in place.
  • Each insert has on its thickness a capillary or microperforation (15) having a diameter between 100 and 200 ⁇ m extended at its base by a divergent (16) in the shape of a dome or cone.
  • the microperforated plate produced in accordance with the prior art comprises two rows of microperforations of 120 ⁇ m spaced 1.2 mm apart in each row and being shifted from one row to the next, each row having 833 microperforations thus leading to a plate which, per meter, comprises 1666 pinholes.
  • the thickness of the stainless steel strip in which the plate is 1 mm.
  • tests no. 2 The other series of tests (tests no. 2) is carried out using compliant plates to the invention produced in a strip, also made of stainless steel, but having a thickness of 2 mm.
  • the microperforations are carried out in inserts (13) encased in holes (12) having a diameter of 0.7 mm.
  • Each insert (13) has a thickness of 0.2 mm and has in the part central a capillary (15) also having a diameter of 120 ⁇ m extended by a divergent (16).
  • inserts are made of zirconia and are, as for the plate microperforated produced in accordance with the prior art, arranged in two rows, each row also comprising 833 holes each having a diameter of 120 ⁇ m and spaced, in each row, by 1.2 mm, thus leading to a plate which also has 1666 holes per meter.
  • essay no. 1 is made from of a conventional perforated plate, and test no. 2 from a plate perforated with zirconia inserts according to the invention.
  • a second series of tests is carried out, but on a non-woven fabric based on 1.7 dtex / 38 mm polyester fibers, weighing 330 g / m 2 .
  • FIGS 4 and 5 illustrate two embodiments which allow facilitate the replacement of an insert (13) which could be damaged during of use and which also show variations in the shape of the capillaries.
  • the insert (13) is mounted not directly inside the duct (12), but via an intermediate support (20), embedded in the conduit (12) which therefore has a diameter greater than that illustrated in Figure 3.
  • This support has a lower hardness than that of the insert (13) and can be produced Stainless steel.
  • the capillary (15) is cylindrical over its entire length and opens into a conduit (21) of greater diameter causing a abrupt enlargement.
  • the insert (13), also produced in zirconia, has at its upper part a flange (22) which bears on the face top of the plate (7).
  • the capillary also consists of an extended cylindrical conduit (15) by a zone (23) of larger diameter, also causing widening sudden.
  • Such a design can facilitate the removal of an insert for its replacement.
  • the inserts are set back by compared to the underside of the plate it could be considered that they arrive at the level of the latter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Paper (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Nozzles (AREA)
EP00981419A 1999-12-17 2000-11-16 Dispositif pour le traitement de materiaux en feuille au moyen de jets d'eau sous pression Expired - Lifetime EP1238133B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9915946A FR2802553B1 (fr) 1999-12-17 1999-12-17 Dispositif pour le traitement de materiaux en feuille au moyen de jets d'eau sous pression
FR9915946 1999-12-17
PCT/FR2000/003187 WO2001044553A1 (fr) 1999-12-17 2000-11-16 Dispositif pour le traitement de materiaux en feuille au moyen de jets d'eau sous pression

Publications (2)

Publication Number Publication Date
EP1238133A1 EP1238133A1 (fr) 2002-09-11
EP1238133B1 true EP1238133B1 (fr) 2003-05-28

Family

ID=9553387

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00981419A Expired - Lifetime EP1238133B1 (fr) 1999-12-17 2000-11-16 Dispositif pour le traitement de materiaux en feuille au moyen de jets d'eau sous pression

Country Status (9)

Country Link
US (1) US6668436B2 (ja)
EP (1) EP1238133B1 (ja)
JP (1) JP2003517112A (ja)
CN (1) CN1411519A (ja)
AT (1) ATE241716T1 (ja)
AU (1) AU1867401A (ja)
DE (1) DE60003081T2 (ja)
FR (1) FR2802553B1 (ja)
WO (1) WO2001044553A1 (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10047106A1 (de) * 2000-09-21 2002-04-11 Fleissner Gerold Düsenkörper zur Erzeugung von feinsten Flüssigkeitsstrahlen an Wasservernadelungseinrichtungen
AU2003272437A1 (en) * 2002-09-16 2004-04-30 Mee Industries, Inc. Multiple spray nozzle apparatus
DE10248357A1 (de) * 2002-10-17 2004-05-06 Hammelmann Maschinenfabrik Gmbh Düse zur Erzeugung eines Hochdruckstrahls
US7237308B2 (en) * 2004-06-10 2007-07-03 North Carolina State University Composite hydroentangling nozzle strip and method for producing nonwoven fabrics therewith
US7303465B2 (en) * 2004-12-09 2007-12-04 North Carolina State University Hydroentangling jet strip device defining an orifice
WO2006063110A2 (en) * 2004-12-10 2006-06-15 Hiduraflex Llc Coated strip and method therefor
DE102005005463A1 (de) * 2005-02-04 2006-08-10 Fleissner Gmbh Düsenbalken mit Mitteln zur Einstellung der Arbeitsbreite sowie Verfahren zur Einstellung der Arbeitsbreite eines Düsenstreifens
EP2002044A2 (en) * 2006-03-28 2008-12-17 North Carolina State University System and method for reducing jet streaks in hydroentangled fibers
EP2065499B1 (de) 2007-12-01 2010-11-10 Enka Tecnica GmbH Düsenleiste
FR2941158B1 (fr) * 2009-01-16 2014-07-18 Rieter Perfojet Dispositif de projection de jets d'eau par une plaquette perforee courbee
EP2302119B1 (de) 2009-09-18 2012-06-20 Groz-Beckert KG Düsenfolie für einen Düsenbalken mit verbindbaren Foliensegmenten
EP2301671B1 (de) * 2009-09-18 2012-06-06 Groz-Beckert KG Düsenstreifen für eine Textilbearbeitungsmaschine
FR2962961B1 (fr) 2010-07-20 2013-06-07 Meribel Alpina Dispositif de securite pour nacelle de telesiege
JP6243745B2 (ja) * 2014-01-27 2017-12-06 株式会社スギノマシン 流体ノズル
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

Family Cites Families (18)

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US3214819A (en) 1961-01-10 1965-11-02 Method of forming hydrauligally loomed fibrous material
US3508308A (en) 1962-07-06 1970-04-28 Du Pont Jet-treatment process for producing nonpatterned and line-entangled nonwoven fabrics
US3485706A (en) 1968-01-18 1969-12-23 Du Pont Textile-like patterned nonwoven fabrics and their production
US3613999A (en) * 1970-04-29 1971-10-19 Du Pont Apparatus for jetting liquid onto fibrous material
US4085485A (en) * 1976-07-26 1978-04-25 International Paper Company Process and device for forming non-woven fabrics
EP0119338A1 (en) * 1983-03-17 1984-09-26 Jetin Industrial Limited High pressure liquid cutting apparatus
US5054349A (en) 1989-03-21 1991-10-08 Andre Vuillaume Procedure and apparatus for perforating a product in sheets and perforated product obtained like this
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DE19849814A1 (de) * 1998-10-29 2000-05-04 Saechsische Werkzeug Und Sonde Wasserstrahldüse in Wasserstrahlschneidköpfen

Also Published As

Publication number Publication date
FR2802553A1 (fr) 2001-06-22
US20020179744A1 (en) 2002-12-05
US6668436B2 (en) 2003-12-30
DE60003081T2 (de) 2003-12-04
AU1867401A (en) 2001-06-25
WO2001044553A1 (fr) 2001-06-21
ATE241716T1 (de) 2003-06-15
JP2003517112A (ja) 2003-05-20
EP1238133A1 (fr) 2002-09-11
FR2802553B1 (fr) 2002-01-04
DE60003081D1 (de) 2003-07-03
CN1411519A (zh) 2003-04-16

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