EP3526385A1 - Jet manifold for water jet processing fibers - Google Patents
Jet manifold for water jet processing fibersInfo
- Publication number
- EP3526385A1 EP3526385A1 EP17768061.8A EP17768061A EP3526385A1 EP 3526385 A1 EP3526385 A1 EP 3526385A1 EP 17768061 A EP17768061 A EP 17768061A EP 3526385 A1 EP3526385 A1 EP 3526385A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure distribution
- distribution chamber
- pressure
- chamber
- nozzle
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000000835 fiber Substances 0.000 title claims abstract description 6
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000004753 textile Substances 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding 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
Definitions
- the present invention relates to a nozzle beam for the treatment of fibers with water jets, comprising a longitudinally extending upper part, in which an elongate pressure chamber is introduced, wherein the pressure chamber has an end side with an opening for supplying water and an opposite closed end side, and wherein in the upper part of a pressure distribution chamber is introduced, which extends parallel to the pressure chamber and distributed over the length of the upper part a plurality of flow holes in the intermediate wall between the pressure chamber and the pressure distribution chamber are introduced, through which the water from the pressure chamber in the pressure distribution chamber is feasible, and wherein in the pressure distribution chamber, a baffle body is arranged, which is rod-shaped and centered in the pressure distribution chamber extends longitudinally therethrough, and comprising a longitudinally extending lower part, the stattkeitsdi on the upper part is arranged, and wherein a nozzle strip is received with bores for the water outlet in or at the lower part, and wherein in the upper part of a slot is inserted, which extends between the pressure distribution chamber and the
- a nozzle bar for the processing of a textile product with water jets is known.
- the processing of the textile goods is carried out with a variety of generated in a row Water jets, for example, extend over the entire width of a moving under the water jets textile web and act on these.
- the nozzle bar on a water connection, with the water via the opening is fed into the pressure chamber.
- the water for example, passes through the opening into the pressure chamber with a generated pressure of 250 bar, whereby the inflow velocity of the water through the opening is for example up to 8 m / s, and approximately in the middle of the pressure chamber the flow velocity still has a value of 2.5 m / s up.
- the nozzle beam is elongate and thus slender, wherein the nozzle beam is formed substantially by the elongated upper part and the elongated lower part.
- the lower part is arranged liquid-tight on the lower side of the upper part, which faces the textile goods, and on the lower part and arranged in the lower part or on the lower part nozzle strips, the water jets are generated by the plurality of bores, which are introduced into the nozzle strip ,
- the pressure chamber is formed separately from the pressure distribution chamber, and between the pressure chamber and the pressure distribution chamber, a plurality of flow openings extend in the intermediate wall between the pressure chamber and the pressure distribution chamber.
- the pressure is equalized over the width of the nozzle bar, so not close to the inlet opening for feeding the water, a high pressure and on the opposite to the feed side, a lower pressure of the water prevails in front of the nozzle strip. Only by a uniform formation of the water jets over the entire width of the nozzle beam uniform processing of the textile goods can be ensured.
- nozzle bars are permanently under water, so that any pressure loss in the nozzle bar at the same time brings a loss of energy during operation of the system. Consequently, the goal in the construction of nozzle beam in addition to a uniform formation of all water jets as low a pressure loss, starting from the opening for feeding water into the pressure chamber to the outflow of water from the holes in the nozzle strip.
- an impact body is introduced, which is formed with a circular cross section and which extends longitudinally through the pressure distribution chamber.
- the baffle is accommodated with spacers eccentrically in the pressure distribution chamber, so that it is displaced upwards in the direction of the mouths of the flow holes in the intermediate wall and thus out of the center of the pressure distribution chamber out. This should allow a more uniform flow around the impact body, so that less turbulence minimizes the pressure loss.
- nozzle bars must be cleaned at regular intervals, in particular the impact body must be removed in a simple manner.
- geometric adjustments can allow a further reduction of the pressure loss.
- it can already cause an optimization of the flow that the screws are replaced to support the baffle against spacers, which rest on the baffle and which are supported against the inner wall of the pressure distribution.
- the object of the invention is the further improvement of a nozzle beam for the treatment of fibers with water jets, such as a textile web, wherein the nozzle beam is to have a low total pressure loss, and wherein the nozzle beam is to be developed so that generated by the holes in the nozzle strip Water jets over the entire width of the nozzle beam as possible to be formed equal to each other. Furthermore, the nozzle bar should experience as minimal as possible space configuration, without leaving the upstream tasks of the invention unsolved.
- the invention includes the technical teaching that between the outside of the baffle and the inside of the pressure distribution chamber, a circumferential annular gap is formed with a gap width of 5mm to 8mm.
- the main advantage of the inventive design of the annular gap which has a constant gap width with the greetings according to the invention over the circumference of the impact body, is that on the one hand a flow constriction is avoided, which leads to an unintentionally high flow resistance, and on the other side a homogenization of the flow is achieved, so that vortices are avoided and a homogeneous pressure distribution prevails.
- the gap width is primarily determined by the diameter of the impact body, so that the diameter of the pressure distribution chamber, for example, 35mm or 40mm.
- the advantage of an adapted gap width is utilized to a greater extent when the gap width has a value of 6 mm to 7 mm. It is particularly advantageous if the gap width has a value of 6.5 mm. This value has shown that a particularly low-vortex flow can be achieved and the pressure loss is minimal.
- the special design of the annular gap with a gap width according to the invention thus results in a surprisingly positive effect on the equalization of the outlet pressure over the length of the slot in the direction of the nozzle strip at a simultaneously low total pressure loss in the nozzle bar.
- the nozzle bar is in particular designed for the feeding of water at a speed of up to about 8 m / s at a pre-pressure of 250 bar. Due to the geometric conditions in the pressure distribution chamber results in an advantageous flow through the water through the pressure distribution and a nearly laminar flow around the baffle, especially if the annular gap has a gap width with a value of 6.5mm.
- the impact body is rod-shaped, has a circular cross section with a diameter of 20mm to 30mm, in particular it is advantageous if the diameter is 22.5mm.
- the baffle body has distributed over its length a plurality of spacers which are applied to the cylindrical impact body and are supported on the outside against the inner wall of the pressure distribution.
- the spacers are for example as sheet metal elements trained and sit like a collar on the outer peripheral surface of the impact body.
- the outer diameter of the spacers can be supported against the inside of the Druckverteilkannnner, such that the baffle despite its arranged on this spacer still in its longitudinal direction from the pressure distribution chamber can be pulled out, for example, to clean the pressure distribution chamber.
- the baffle body is advantageously guided by means of the spacers against the inner wall of the pressure distribution chamber.
- the pressure distribution chamber is closed in the upper part at its opposite end sides of the upper part with closure elements, wherein the impact body is received with its ends between the closure elements.
- the baffle body on the closure elements can serve screw elements with which the baffle body can be screwed in particular from the outside of the nozzle beam with the closure elements.
- the advantageously arranged on both sides of the upper closure elements are also bolted to the opening sides of the cylindrical pressure distribution chamber, for example on the outside.
- the closure elements may have centering sections, which project into the pressure distribution chamber at the ends in order to center the closure elements.
- the pressure chamber located above the pressure distribution chamber is closed with closure elements, wherein one of the opposing closure elements has the opening for the water feed into the pressure chamber.
- the further Closure element without the opening can accommodate a pressure measuring means, so for example a manometer.
- Figure 1 is a cross-sectional view through a nozzle bar for the
- Figure 2 is a cross-sectional view through the nozzle bar according to
- Figure 3 is a simplified cross-sectional view through the
- Nozzle bar with the representation of the pressure chamber, the pressure distribution chamber and the baffle body, which is centered in the pressure distribution chamber is introduced.
- FIGS. 1 and 2 show a cross-sectional view through a nozzle bar 1 for processing a textile product with water jets
- Figure 2 shows along the section line A-A is a cross-sectional view through the nozzle bar 1, wherein the sectional plane A-A extends transversely to the sectional plane through the nozzle bar 1 of FIG.
- the nozzle bar 1 is described in more detail in FIGS. 1 and 2.
- the housing of the nozzle beam 1 has an upper part 10, which is screwed to the lower part 16 over the length of many times by screws 24.
- the upper part 10 has two holes 1 1 and 13 extending in the longitudinal direction, of which the upper bore forms a pressure chamber 1 1 and the lower bore forms a pressure distribution chamber 13. Both chambers 1 1 and 13 are made open at the end sides of the upper part 10 and by closure elements 22 for the pressure chamber 1 1 and through Closure elements 23 for the pressure distribution chamber 13 sealed liquid-tight.
- a pressure measuring means 25 is screwed, and the closure element 22 for closing the pressure chamber 1 1 on the right side has an opening 12, via the water with a water connection not shown in the pressure chamber 1 first can be fed.
- the two chambers 1 1 and 13 are separated by an intermediate wall 15, wherein the intermediate wall 15 is formed by a cross-sectional area of the upper part 10.
- Over the length of the nozzle bar 1 connects a large number of flow holes 14 in the intermediate wall 15, the two chambers 1 1 and 13, so that in the pressure chamber 1 1 inflowing water flows evenly distributed over the length of the nozzle beam 1 in the pressure distribution chamber 13.
- the pressure distribution chamber 13 is open at the bottom, through the narrow compared to the diameter of the bore of the pressure distribution chamber 13 slot 19, which also extends over the length of the nozzle beam 1.
- the upper part 10 is firmly and fluid-tightly screwed to the lower part 16 by means of the screws 24.
- the tightness is effected by the O-ring 26 which is seated in a groove 19 extending around the slot.
- a spring projection 27 is seated in a corresponding groove in the lower part 16, and in the groove is another O-ring 28, which serves to seal the nozzle strip 17.
- FIG. 1 shows the nozzle strip 17, which has a plurality of bores 18, wherein the bores 18 in the longitudinal direction to each other equally spaced pass through the nozzle strip 17.
- the pressurized water from the pressure distribution chamber 13 and from the adjoining slot 19th acts on the nozzle strip 17 on the inside, and the water penetrates through the holes 18 therethrough and forms an emerging from each of the holes 18 water jet.
- the water which flows under pressure through the opening 12 in the closure element 22 into the pressure chamber 1 1, uniformly pass through the plurality of flow holes 14 in the intermediate wall 15 and enter the pressure distribution chamber 13.
- a plurality of spacers 29 are arranged on the baffle body 20, which are designed disk-like and center the baffle body 20 in the pressure distribution chamber 13.
- FIG. 3 shows a simplified cross-section of the nozzle bar 1 with the uppermost pressure chamber 11 and with the pressure distribution chamber 13 arranged underneath.
- the diameter of the pressure chamber 1 1 is according to the embodiment 80mm, and the diameter D1 of the pressure distribution chamber 13 is 35mm.
- the chambers 1 1 and 13 have over the entire length of the nozzle beam 1 across a substantially cylindrical cross-section.
- the impact body 20 has a diameter D2 of 22 mm, so that an annular gap S with a gap width of 6.5 mm results.
- a spacer 29 is shown, which is welded on the outer circumference of the impact body 20.
- the resulting side view of the impact body 20 illustrates that the outer side is grooved, so that a water exchange between the sides of the spacer 29 is possible, so that the spacers 29, the pressure distribution chamber 13 is not divided into segments sealed to each other.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016119483.2A DE102016119483A1 (en) | 2016-10-12 | 2016-10-12 | Nozzle bar for processing fibers with water jets |
PCT/EP2017/072580 WO2018068962A1 (en) | 2016-10-12 | 2017-09-08 | Jet manifold for water jet processing fibers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3526385A1 true EP3526385A1 (en) | 2019-08-21 |
EP3526385B1 EP3526385B1 (en) | 2020-08-12 |
Family
ID=59887239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17768061.8A Active EP3526385B1 (en) | 2016-10-12 | 2017-09-08 | Jet manifold for water jet processing fibers |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3526385B1 (en) |
JP (1) | JP2019531422A (en) |
CN (1) | CN109790666B (en) |
DE (1) | DE102016119483A1 (en) |
WO (1) | WO2018068962A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016119481A1 (en) * | 2016-10-12 | 2018-04-12 | TRüTZSCHLER GMBH & CO. KG | Nozzle bar for processing fibers with water jets |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6112960A (en) * | 1984-06-27 | 1986-01-21 | 東レ株式会社 | Apparatus for producing fiber interlaced sheet |
JPH073028B2 (en) * | 1985-09-20 | 1995-01-18 | 東レ株式会社 | Fiber entanglement sheet manufacturing equipment |
DE59601476D1 (en) | 1995-01-23 | 1999-04-29 | Fleissner Maschf Gmbh Co | Nozzle bar on a device for generating liquid jets |
US5933931A (en) * | 1997-12-05 | 1999-08-10 | Bba Nonwovens Simpsonville, Inc. | Turbulence-induced hyrdroenhancing for improved enhancing efficiency |
DE19828118A1 (en) * | 1998-06-24 | 1999-12-30 | Fleissner Maschf Gmbh Co | Device with a nozzle bar for generating liquid jets for the jet interlacing of fibers on a textile web |
FR2795099B1 (en) * | 1999-06-17 | 2001-07-13 | Icbt Perfojet Sa | DEVICE FOR TREATING SHEET MATERIALS USING PRESSURE WATER JETS |
DE19941729A1 (en) * | 1999-09-01 | 2001-03-08 | Fleissner Maschf Gmbh Co | Nozzle body for generating the finest liquid jets z. B. on water needling devices |
DE10203719A1 (en) * | 2002-01-30 | 2003-07-31 | Fleissner Maschf Gmbh Co | Registration unit on a nozzle bar of a device for generating the finest liquid jets for applying a beam to a fiber web |
JP4439854B2 (en) * | 2002-10-08 | 2010-03-24 | 三菱レイヨン・エンジニアリング株式会社 | Non-woven fabric manufacturing method using pressurized steam jet nozzle |
DE102005055939B3 (en) | 2005-11-24 | 2007-02-08 | Fleissner Gmbh | Nozzle crosspiece used in a device for producing a liquid jet comprises a pressure distribution chamber containing an impact body arranged over the length of a slot and not screwed to the crosspiece but inserted into it |
EP2302120B1 (en) * | 2009-09-22 | 2012-06-20 | Groz-Beckert KG | Injector for a textile processing machine |
CN104060403A (en) * | 2013-03-24 | 2014-09-24 | 仪征市四方轻纺机械有限公司 | Water flow pressure control device of water jet |
CN103498288A (en) * | 2013-09-29 | 2014-01-08 | 无锡众望四维科技有限公司 | Spunlace head of spunlace fibermesh fixing machine |
CN103498289B (en) * | 2013-09-29 | 2015-11-18 | 无锡纳润特科技有限公司 | The type high pressure jet head of water thorn fixed network machine |
CN104711781A (en) * | 2013-12-15 | 2015-06-17 | 无锡市二泉针织厂 | Net fixation water stabbing head of knitting machine |
CN204753057U (en) * | 2015-06-05 | 2015-11-11 | 恒天重工股份有限公司 | Water jet equipment prewets suitable for spun -laced machine |
-
2016
- 2016-10-12 DE DE102016119483.2A patent/DE102016119483A1/en not_active Withdrawn
-
2017
- 2017-09-08 EP EP17768061.8A patent/EP3526385B1/en active Active
- 2017-09-08 WO PCT/EP2017/072580 patent/WO2018068962A1/en unknown
- 2017-09-08 JP JP2019519706A patent/JP2019531422A/en active Pending
- 2017-09-08 CN CN201780060814.6A patent/CN109790666B/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2018068962A1 (en) | 2018-04-19 |
EP3526385B1 (en) | 2020-08-12 |
DE102016119483A1 (en) | 2018-04-12 |
JP2019531422A (en) | 2019-10-31 |
CN109790666B (en) | 2021-10-08 |
CN109790666A (en) | 2019-05-21 |
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