EP1478469A1 - Dispositif de projection de jets d eau a porte-joint mince. - Google Patents
Dispositif de projection de jets d eau a porte-joint mince.Info
- Publication number
- EP1478469A1 EP1478469A1 EP03720621A EP03720621A EP1478469A1 EP 1478469 A1 EP1478469 A1 EP 1478469A1 EP 03720621 A EP03720621 A EP 03720621A EP 03720621 A EP03720621 A EP 03720621A EP 1478469 A1 EP1478469 A1 EP 1478469A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seal
- contact
- perforated plate
- end parts
- holder
- 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.)
- Granted
Links
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—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
Definitions
- the present invention relates to a device for projecting water jets, useful in particular for the hydraulic bonding of fibers in nonwovens.
- This bonding consists of sending a curtain of pressurized water jets over 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.
- a device for projecting water jets comprising a body resistant to pressure and delimiting an interior chamber having an inlet and communicating, with the interposition of a perforated plate, with a through outlet 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.
- This device is easy to build and maintain. But experience has shown it to be ineffective in obtaining good hydraulic binding.
- the invention remedies this by a device for projecting water jets, which, while being easily mounted and maintained, is very effective.
- said first part of the seal carrier in contact with the perforated plate has, at least near the slot, a thickness of less than 10 mm.
- the ineffectiveness of the prior devices stems from the large distance between the perforated plate and the outlet.
- the jets lose speed over this long distance. Thinning the seal holder prevents this loss of speed and improves efficiency.
- the thickness of the middle part in the vicinity of the slot is at least 2 mm, so that the seal carrier has sufficient mechanical strength. Preferably, the thickness is between 3 and 6 mm.
- the seal carrier is slidably mounted in the body parallel to the axis of the interior chamber. To facilitate this movement, said first part is a middle part and is continued by two parts of thicker ends, the thickness of which extends in the direction of the interior chamber. The two end portions are respectively in contact with the longitudinal edges of the perforated plate and maintain it.
- the two end parts penetrate by their free end into guide grooves of the seal carrier, formed in the body.
- the body extends between the two thick parts of the seal carrier and the spacers so that it, despite the thinness of the middle part, retains its shape even when it is subjected to great pressure forces.
- the seal holder is U-shaped, the two branches of which form the end parts and the core the middle part.
- the seals are preferably annular seals of rectangular shape with rounded tops.
- the second seal is in contact with the first part of the seal holder.
- the invention also relates to an installation for binding fibers into a nonwoven, comprising a cylinder over which the fibers to be bound can pass and a device according to the invention, the jets of which are directed onto the lateral face of the cylinder.
- FIG. 1 is a sectional view of a device according to the invention along a plane perpendicular to the axis of the interior chamber,
- Figure 2 is a sectional view along the line ⁇ - ⁇ of Figure 1
- Figure 3 is a partial perspective view of the seal holder.
- the device for projecting jets comprises a parallelepipedic body 1 having two opposite large faces 2, 3, two opposite small faces 4,5, and two opposite front faces 6.
- the body 1 is made of steel.
- fittings constituting an inlet communicating with a source of pressurized water which is not shown.
- a cylindrical filter 9 is arranged, 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 carrier 14 made of metal, plastic or composite material, composed of a middle part or core of 4 mm annular thickness 15 of a thickness of 5 mm and of two lateral branches 16, 17 (end parts) extending parallel to the axis 8 and of thickness 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 provides a longitudinal through slot 18 facing the channel 12 and the outlet 13. On either side of the slot 18, the seal holder 14 includes a groove 19 facing the chamber 7 and in which is housed a rectangular joint 20 with rounded tops. On the opposite face, the seal carrier 14 has a groove
- the seal 20 is closer to the slot 18 than the seal 22.
- a plate 23 perforated with 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 carrier 23 can slide in its housing parallel to the axis 8, the branches 16, 17 passing through grooves 24 made in the body 1 and can be removed from the device, after a plug 26 has been removed therefrom. The same applies to 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 in spite of its thinness, preventing it from closing when it is subjected to the pressure forces.
- the free ends of the end portions 16, 17 of the seal carrier are spaced from the bottom of the grooves 24.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Nozzles (AREA)
- Treatment Of Fiber Materials (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Lining And Supports For Tunnels (AREA)
Description
Claims
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 true EP1478469A1 (fr) | 2004-11-24 |
| EP1478469B1 EP1478469B1 (fr) | 2006-07-12 |
Family
ID=27636298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03720621A Expired - Lifetime EP1478469B1 (fr) | 2002-02-19 | 2003-02-18 | Dispositif de projection de jets d eau a porte-joint mince. |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7156327B2 (fr) |
| EP (1) | EP1478469B1 (fr) |
| JP (1) | JP4418239B2 (fr) |
| CN (1) | CN1317080C (fr) |
| AT (1) | ATE332755T1 (fr) |
| AU (1) | AU2003224201A1 (fr) |
| DE (1) | DE60306752T2 (fr) |
| FR (1) | FR2836075B1 (fr) |
| WO (1) | WO2003070379A1 (fr) |
Families Citing this family (4)
| 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 (fr) * | 2009-09-22 | 2012-06-20 | Groz-Beckert KG | Injecteur pour une machine de traitement du textile |
| IT202000024976A1 (it) * | 2020-10-22 | 2022-04-22 | Vincenzo Penati | Sistema per l’umettamento di fogli di carta |
Family Cites Families (6)
| 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 |
-
2002
- 2002-02-19 FR FR0202069A patent/FR2836075B1/fr not_active Expired - Fee Related
-
2003
- 2003-02-18 JP JP2003569331A patent/JP4418239B2/ja not_active Expired - Lifetime
- 2003-02-18 WO PCT/FR2003/000519 patent/WO2003070379A1/fr not_active Ceased
- 2003-02-18 DE DE60306752T patent/DE60306752T2/de not_active Expired - Lifetime
- 2003-02-18 AU AU2003224201A patent/AU2003224201A1/en not_active Abandoned
- 2003-02-18 EP EP03720621A patent/EP1478469B1/fr not_active Expired - Lifetime
- 2003-02-18 CN CNB038042444A patent/CN1317080C/zh not_active Expired - Lifetime
- 2003-02-18 US US10/504,198 patent/US7156327B2/en not_active Expired - Lifetime
- 2003-02-18 AT AT03720621T patent/ATE332755T1/de not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03070379A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003070379A1 (fr) | 2003-08-28 |
| US20050082398A1 (en) | 2005-04-21 |
| ATE332755T1 (de) | 2006-08-15 |
| CN1635931A (zh) | 2005-07-06 |
| FR2836075B1 (fr) | 2004-04-23 |
| EP1478469B1 (fr) | 2006-07-12 |
| JP4418239B2 (ja) | 2010-02-17 |
| DE60306752T2 (de) | 2007-07-12 |
| FR2836075A1 (fr) | 2003-08-22 |
| AU2003224201A1 (en) | 2003-09-09 |
| JP2005517830A (ja) | 2005-06-16 |
| DE60306752D1 (de) | 2006-08-24 |
| US7156327B2 (en) | 2007-01-02 |
| CN1317080C (zh) | 2007-05-23 |
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