EP1377702A1 - Dispositif et procede de compactage d'une nappe de fibres a reglage de la pression appliquee a la nappe - Google Patents
Dispositif et procede de compactage d'une nappe de fibres a reglage de la pression appliquee a la nappeInfo
- Publication number
- EP1377702A1 EP1377702A1 EP02713015A EP02713015A EP1377702A1 EP 1377702 A1 EP1377702 A1 EP 1377702A1 EP 02713015 A EP02713015 A EP 02713015A EP 02713015 A EP02713015 A EP 02713015A EP 1377702 A1 EP1377702 A1 EP 1377702A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conveyor
- cylinder
- point
- roller
- convergence
- 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
- 238000000034 method Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 13
- 238000005056 compaction Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000009736 wetting Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
-
- 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
- D04H13/00—Other non-woven fabrics
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
- D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
Definitions
- the first step of the process consists in mechanically compacting the sheet of fibers or filaments, then wetting it and entangling the fibers or filaments with a water injector.
- This technique generally consists in first making a base sheet formed of elementary, natural, synthetic fibers, or formed of a mixture of these fibers, in particular with the card or the lapper to obtain a very airy layer weighing a few tens grams per square meter, to several hundred grams per square meter, for example a sheet of 200 g / m 2 has a thickness of the order of 100 mm.
- the elementary fibers of this sheet are then entangled by means of a ramp of contiguous jets of water under high pressure (50 to 400 bar) to bring the aerated base sheet to a thickness of the order of less than one to several millimeters, especially from 0.5 to 5 millimeters.
- the invention remedies this drawback by a device and a method which make it possible to adjust the degree of compaction of the sheet of nonwoven fibers.
- the subject of the invention is therefore a device for compacting a sheet of nonwoven fibers or filaments, comprising a cylinder, a first conveyor converging at a point of convergence, towards the cylinder and, downstream from the point of convergence in the direction of movement of the first conveyor, a roller on which the first conveyor passes, characterized by 2/070804
- the device comprises a cylinder, in particular suction, a second conveyor passing over a part of the cylinder, a first conveyor converging towards the second conveyor at the point of convergence upstream of the part of the cylinder and, directly downstream of the point of convergence, a roller on which the first conveyor passes.
- Means are provided for modifying the position of the roller so as to modify the extent of the arc along which the first conveyor is applied, with the interposition of the second conveyor, to the cylinder.
- the roll When it is desired to substantially conserve the volume of the nonwoven and compact it very little, the roll is placed in a position in which the first conveyor is not applied to the cylinder while being kept at a small distance, for example five millimeters . If, on the other hand, it is desired to compact the sheet of fibers more, in order to increase its density, the roller is placed in a position in which the extent of the arc along which the first conveyor is applied to the cylinder is greater .
- directly downstream of the point of convergence is meant that there is not between the point of convergence and the roll of elements capable of modifying the trajectory of the first conveyor.
- the trajectory of this first conveyor is thus defined by the position of the roller and thereby the pressure which applies to the web between the second and the first conveyor is adjustable.
- the means for modifying the position of the roller may in particular be a pneumatic, hydraulic or mechanical jack, a rack device, a wheel and worm assembly.
- the compacting device is normally carried out by wetting the fibers of the sheet.
- the conveyors are permeable to water.
- the water jet from this injector is usually under a pressure which is not more than 20 bars. It is desirable that the injector is in a centered position relative to the arc along which the first conveyor is applied to the cylinder.
- the invention provides means for modifying the position of the water injector. 2/070804
- first conveyor is below the cylinder so that it does not tend to apply by gravity to the latter and its position relative to the cylinder is well determined by the roller, the first conveyor also being below the second conveyor.
- first conveyor, the roller and the injector are arranged above the second conveyor.
- Means of sending pressurized water jets are normally provided on the part of the cylinder over which the second conveyor passes, the pressure of these water jets being at least 10 bar and in particular between 10 and 400 bar.
- FIG. 1 is an elevation view of a device according to the invention in a first position of the roller
- FIG. 2 is a view similar to that of FIG. 1, then that the roller has taken another position
- FIG. 3 is an elevation view of the roller and of the jack making it possible to modify its position
- FIG. 4 is an elevation view of a variant
- FIG. 5 is a view similar to Figure 1 of a variant.
- the core 3 carries an idler roller 5 and a motorized roller 6 for returning the endless conveyor 4.
- the core 3 further carries a roller 7 provided with a device
- a roller 11 is provided which is mounted on two jacks 12 so that the roller 11 can be raised or lowered.
- the two mechanical screw jacks 12 each have a rod 34 which attacks a bearing 36 of a journal 35 of the roller 11 and which leaves a body 33 of the jack.
- the rod 34 can be raised or lowered by operating a flywheel 37 driving a shaft 38 which meshes in a screw cooperating with the rod.
- the core 3 also carries an injector 13 of pressurized water which comprises a cam 14 sliding in a curved slide 15 according to a curvature corresponding to that of a cylinder 15 located opposite the jet supplied by the injector 13. L the injector 13 is also carried by the core 3.
- the roller 25 also comprises a tensioning device 28 and the roller 26 a device for guiding the conveyor.
- the second inner conveyor 27, consisting of a water-permeable fabric, is wound on the cylinder 15, which is provided with a suction device 29, on a part 30 extending from point 31 where the jet emitted by the injector 13 reaches the cylinder 15, at an angle of about 170 °.
- the two conveyors 4 and 27 converge at point 31.
- the conveyor 4 moves clockwise.
- the conveyor 27 moves counterclockwise.
- the cylinder 15 moves counterclockwise. Downstream from point 31, two devices 32 are provided for spraying pressurized water jets.
- the conveyor 4 is at a distance from the cylinder 15 and the sheet of nonwoven fibers, which is compacted between the converging strands at point 31 of the conveyors 4 and 27, is compacted only by this convergence, while in FIG. 2 the fact of having raised the roller 11 directly downstream of the point 31 means that the conveyor 4 is applied at a certain angle on the conveyor 27 and consequently by means of the latter on the cylinder 15 from point 31. Compression is stronger. To take account of this greater extent over which compression takes place, the injector 13 has been moved to the right in FIG. 2 so that the jet which results therefrom comes to strike a point substantially between point 31 and the point 33 where the conveyor 4 leaves the conveyor 27.
- FIG. 5 is shown a device similar to that of FIG. 1, but without the conveyor 27,
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0103011 | 2001-03-06 | ||
| FR0103011A FR2821866B1 (fr) | 2001-03-06 | 2001-03-06 | Dispositif et procede de compactage d'une nappe de fibres a reglage de la pression applique a la nappe |
| PCT/FR2002/000788 WO2002070804A1 (fr) | 2001-03-06 | 2002-03-05 | Dispositif et procede de compactage d'une nappe de fibres a reglage de la pression appliquee a la nappe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1377702A1 true EP1377702A1 (fr) | 2004-01-07 |
| EP1377702B1 EP1377702B1 (fr) | 2010-06-02 |
Family
ID=8860774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02713015A Expired - Lifetime EP1377702B1 (fr) | 2001-03-06 | 2002-03-05 | Dispositif et procede de compactage d'une nappe de fibres a reglage de la pression appliquee a la nappe |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1377702B1 (fr) |
| AT (1) | ATE470002T1 (fr) |
| DE (1) | DE60236582D1 (fr) |
| FR (1) | FR2821866B1 (fr) |
| WO (1) | WO2002070804A1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2845697B1 (fr) | 2002-10-11 | 2005-05-27 | Rieter Perfojet | Procede et machine de production d'un non-tisse a reduction de la vitesse de deplacement de la nappe compactee |
| DE10254563A1 (de) * | 2002-11-21 | 2004-06-03 | Fleissner Gmbh & Co. Maschinenfabrik | Vorrichtung zum hydrodynamischen Verschlingen der Fasern einer Faserbahn |
| FR2911616B1 (fr) * | 2007-01-19 | 2009-07-03 | Rieter Perfojet Soc Par Action | Installation et procede de production d'une nappe a base de fibres ou de filaments |
| CN102534815B (zh) * | 2010-11-24 | 2015-11-25 | 王大亮 | 无缝剥茧带制备方法 |
| DE102013101431B4 (de) * | 2013-02-13 | 2016-06-23 | TRüTZSCHLER GMBH & CO. KG | Vorrichtung und Verfahren zum hydrodynamischen Verfestigen von Vliesen, Geweben und Gewirken |
| DE102021107902A1 (de) | 2021-03-29 | 2022-09-29 | Andritz Küsters Gmbh | Anlage zur Verfestigung mindestens einer nass- oder trockengelegten Faserlage zu einer Vliesbahn, mit einem Förderer, der ein umlaufendes Band mit einem oberen Trum umfasst, auf welches die mindestens eine Faserlage ablegbar und in einer Produktionsrichtung verlagerbar ist |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3110612A (en) * | 1960-12-20 | 1963-11-12 | Albemarle Paper Mfg Company | Method and apparatus for cast coating paper |
| US3940833A (en) * | 1973-04-26 | 1976-03-02 | Cluett, Peabody & Co., Inc. | Method for compressively shrinking textile fabrics at high speed |
| GB1508534A (en) * | 1975-08-12 | 1978-04-26 | Sandvik Conveyor Gmbh | Twin belt system |
| FR2730246B1 (fr) * | 1995-02-03 | 1997-03-21 | Icbt Perfojet Sa | Procede pour la fabrication d'une nappe textile non tissee par jets d'eau sous pression, et installation pour la mise en oeuvre de ce procede |
| GB2300429B (en) * | 1995-05-03 | 1999-01-13 | Courtaulds Eng Ltd | Non-woven fabric manufacture |
| DE19627256A1 (de) * | 1996-07-08 | 1998-01-15 | Fleissner Maschf Gmbh Co | Verfahren und Vorrichtung zum hydromechanischen Verschlingen der Fasern einer Faserbahn |
| EP0859076B1 (fr) * | 1997-02-12 | 2002-08-28 | Fleissner GmbH & Co. Maschinenfabrik | Dispositif d'hydro-enchevêtrement de fibres d'une nappe fibreuse |
-
2001
- 2001-03-06 FR FR0103011A patent/FR2821866B1/fr not_active Expired - Fee Related
-
2002
- 2002-03-05 AT AT02713015T patent/ATE470002T1/de active
- 2002-03-05 EP EP02713015A patent/EP1377702B1/fr not_active Expired - Lifetime
- 2002-03-05 DE DE60236582T patent/DE60236582D1/de not_active Expired - Lifetime
- 2002-03-05 WO PCT/FR2002/000788 patent/WO2002070804A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02070804A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE60236582D1 (de) | 2010-07-15 |
| ATE470002T1 (de) | 2010-06-15 |
| EP1377702B1 (fr) | 2010-06-02 |
| FR2821866A1 (fr) | 2002-09-13 |
| WO2002070804A1 (fr) | 2002-09-12 |
| FR2821866B1 (fr) | 2003-05-16 |
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