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WO2018068952A1 - Rampe de jets d'eau pour le traitement de fibres par jets d'eau - Google Patents

Rampe de jets d'eau pour le traitement de fibres par jets d'eau Download PDF

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Publication number
WO2018068952A1
WO2018068952A1 PCT/EP2017/072433 EP2017072433W WO2018068952A1 WO 2018068952 A1 WO2018068952 A1 WO 2018068952A1 EP 2017072433 W EP2017072433 W EP 2017072433W WO 2018068952 A1 WO2018068952 A1 WO 2018068952A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
chamber
pressure distribution
water
distribution chamber
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.)
Ceased
Application number
PCT/EP2017/072433
Other languages
German (de)
English (en)
Inventor
Bernd Stork
Antonio GUZMAN NAVARRO
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.)
Truetzschler GmbH and Co KG
Original Assignee
Truetzschler GmbH and Co KG
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 Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Priority to EP17768054.3A priority Critical patent/EP3526384B1/fr
Priority to JP2019519695A priority patent/JP2019531421A/ja
Priority to CN201780060028.6A priority patent/CN109790665B/zh
Publication of WO2018068952A1 publication Critical patent/WO2018068952A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

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 comprising a longitudinally extending lower part, which is arranged liquid-tight on the upper part, and wherein a nozzle strip is received with holes for the water outlet in or on the lower part, and wherein in the upper part of a slot is introduced, the extends between the pressure distribution chamber and the nozzle strip for watering the nozzle strip.
  • a nozzle bar for the processing of a textile product with water jets is known.
  • the processing of the textile goods takes place with a plurality of water jets generated in a row, which extend for example over the entire width of a moving under the water jets textile web and act on these.
  • the nozzle bar a Water connection, with which water is fed into the pressure chamber via the opening.
  • 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 side of the upper part, which faces the textile product, 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 holes 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 beam, so that not near the inlet opening for supplying the water, a high pressure and on the opposite, far side for feeding a lower pressure of the water prevails in front of the nozzle strip. Only through a uniform formation of water jets over the entire width of the nozzle bar, a 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.
  • the slit is made to equalize the water pressure in front of the outlet holes in the nozzle strip so that an increased turbulence of the water for a uniform application of the nozzle strip is generated from the inside, which, however, may be accompanied by an increased pressure loss.
  • nozzle bars must be cleaned at regular intervals, in particular, the nozzle strip must be removed in a simple manner.
  • geometric adjustments can allow a further reduction of the pressure loss, so that for example the narrow slot can be optimized to the mouth of the pressure distribution on the nozzle strip, as in EP 0 725 175 B1 described.
  • nozzle beam for the treatment of a textile product with water jets comprising an elongated upper part in which an elongated pressure chamber is introduced, wherein the pressure chamber has an end side with an opening for feeding water and has 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 through-flow bores 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 having a longitudinally extending lower part which is liquid-tightly disposed on the upper part, and wherein a nozzle strip is received with bores for the water outlet in or on the lower part, and wherein a slotHerbra in the upper part ht, which extends between the pressure distribution chamber and the nozzle strip for watering the nozzle strip.
  • the flow bores With respect to the flow bores, they are described as having a first smaller diameter portion adjacent the pressure chamber. From this first section, the water flows at a higher velocity into an adjoining second section of larger diameter, causing a calming of resulting vortices.
  • the resulting throttling effect of the first section with the smaller diameter also has the consequence that the flow velocity of the water through all flow wells about the same. The result is a more harmonious pressure water admission of the pressure distribution chamber.
  • the object of the invention is the further improvement of a nozzle beam for the treatment of fibers with water jets, wherein the nozzle beam should have a low total pressure loss, and wherein the nozzle beam to be developed so that the generated over the holes in the nozzle strip water jets over the entire width of the nozzle bar as possible should 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 the flow bores between the pressure chamber and the pressure distribution chamber with respect to the direction of the elongated extent of the upper part have a distance of 25mnn to 35mnn and / or from 28mnn to 32mnn and / or 30mnn to each other.
  • the special design of the flow holes results in a surprisingly positive effect on the equalization of the outlet pressure over the slot in the direction of the nozzle strip with a simultaneously low total pressure drop 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 of the flow holes results in an advantageous flow over the water from the pressure chamber in the pressure distribution at a rate of, for example, up to 1 1 m / s, especially if the distance between the flow holes to each other has a value of 30mm.
  • the pressure chamber is cylindrical and has a circular cross-section with a diameter of 70mm to 90mm and if the Druckverteilkannnner is cylindrical and has a circular cross section with a diameter of 30mm to 40mm.
  • the flow holes have a circular cross section and have a first adjacent to the pressure chamber portion having a smaller diameter than a second adjacent to the pressure distribution chamber portion.
  • the advantageous effect can be utilized that from the first section the water flows at a higher speed into a subsequent second section with a larger diameter, which results in a calming of arising eddies.
  • the resulting throttling effect of the first section with the smaller diameter also has the consequence that the flow velocity of the water through all flow wells about the same. The consequence is a very calm pressure water admission of the pressure distribution chamber.
  • the flow holes in the first section have a diameter of 3 to 4 mm and in the second section a diameter of 5 to 7 mm.
  • the flow holes in the first section preferably have a length of 8 to 12 mm and in the second section a length of 22 to 26 mm.
  • the preferred length and diameter ratios cause an inflow velocity of the water of, for example, 1 1 m / s, which has been found to be advantageous.
  • the length of the flow holes in the intermediate wall between the pressure chamber and the pressure distribution chamber which can be determined with about 33mm to 35mm. Consequently, the distance between the central axis of the Pressure chamber to the central axis of the pressure distribution chamber an influence on the total pressure drop in the nozzle beam and on the most homogeneous pressure distribution of the water inside the holes over the length of the nozzle strip.
  • a distance between the center axis of the pressure chamber and the central axis of the pressure distribution chamber of 80mm to 100mm, preferably from 85mm to 95mm and more preferably 92mm. Consequently, the length of the flow holes is 34.5mm.
  • the through-flow bores can be designed with further advantage stepped, and the mouth of the flow holes in the pressure chamber has a smaller diameter than the mouth of the flow holes in the pressure distribution chamber.
  • an impact body which is arranged cylindrical in the pressure distribution chamber, wherein the impact body has an elongated cylindrical shape and has a diameter of 20mm to 25mm and / or a diameter of 22.5mm.
  • the baffle body is received at its ends of its elongated cylindrical shape and / or the baffle body has distributed over its length spacers, by means of which the baffle body is held centrally arranged in the pressure distribution chamber. As indicated above, particularly advantageous flow conditions in the pressure distribution chamber result when the impact body is arranged centrally in the pressure distribution chamber.
  • the baffle body completely equidistant from the wall of the pressure distribution chamber, so that the flow cross section of the water from the flow holes into the slot around the baffle body is formed substantially constant. It could be determined that in such a design of the impact body and its arrangement in the pressure distribution chamber a minimal to no vortex formation arises. Consequently, the pressure loss is minimized with the best possible pressure distribution over the length of the nozzle beam.
  • a further advantage is achieved if the pressure chamber in the upper part is closed on at least one of its end sides of the upper part with a closure element, and wherein a closure element has the opening for the water feed into the pressure chamber. It is also conceivable that the pressure chamber is closed on the opposite side of the closure element with the opening by the material of the upper part. For manufacturing reasons, however, it is advantageous if the upper part over its entire length has a substantially same cross-section material.
  • the pressure distribution chamber is closed in the upper part at its opposite end sides of the upper part with closure elements.
  • the impact body can be received with its ends between the closure elements. If the baffle body has to be removed from it, for example, for cleaning purposes of the pressure distribution chamber, then it is already sufficient to release one of the two closure elements from the end sides of the upper part.
  • 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 1 shows a cross-sectional view through a nozzle bar 1 for the processing of fibers, such as a textile web, with water jets
  • Figure 2 shows along the section AA a cross-sectional view through the nozzle bar 1, wherein the sectional plane A-A transverse to the sectional plane through the nozzle bar 1 according to FIG. 1.
  • the nozzle bar 1 is described in more detail in conjunction with 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 liquid-tightly closed by closure elements 22 for the pressure chamber 1 1 and by closing elements 23 for the pressure distribution chamber 13.
  • the closure element 22 for closing the pressure chamber 1 1 has a pressure measuring means 25, and the Closure element 22 for closing the pressure chamber 1 1 on the right side has an opening 12, via which water can be fed into the pressure chamber 1 1 with a water connection, not shown.
  • 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 with the lower part 16 is firmly and fluid-tight screwed to 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 19 acts on the nozzle strip 17 on the inside, and the water penetrates through the bores 18 and forms a water jet emerging from each of the bores 18. Due to the described embodiment of the nozzle bar 1, 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.
  • baffle body 20 Due to the cylindrical design of the baffle body 20, which is received between the two closure elements 23, and centrally seated in the pressure distribution chamber 13, a further homogenization of the pressure distribution along the extension direction of the nozzle beam 1 is achieved, so that the nozzle strip 17 while maintaining a minimal pressure loss over its entire length is subjected to substantially the same pressure.
  • 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.
  • the spacers 29 sit with their outer contour on the inside in the pressure distribution chamber 13 and are supported against the inner wall.
  • the spacers 29 can sit firmly on the rod-shaped or cylindrical impact body 20 for this purpose.
  • the advantage is achieved that when dismantling one of the closure elements 23 of the baffle 20 can be removed, for example, for cleaning purposes from the pressure distribution chamber 13.
  • the flow holes 14 between the pressure chamber 1 1 and the pressure distribution chamber 13 have, based on the direction of the elongated extent of the upper part 10 a distance of 25mm to 35mm and / or from 28mm to 32mm and / or 30mm to each other. In the elongated extension direction of the pressure chamber 1 1 and the Pressure distribution chamber 13 25 to 40 flow holes 14 per meter in the intermediate wall 15 are formed.
  • the flow holes 14 have a circular cross section and have a first to the pressure chamber 1 1 adjacent section I, which has a smaller diameter than a second adjacent to the pressure distribution chamber 13 Section II.
  • the example shows the flow holes 14 with a diameter of 3, 5mm in the first section I and with a diameter of 6mm in the second section II.
  • the length of the first section I has a value of 10mm and the length of the second section II has a value of 24.5mm. Based on the direction of the elongated extent of the upper part 10, the flow holes 14 are distributed over a length of 3630mm in a row equal to each other and 121 flow holes 14 are arranged in the intermediate wall 15 in a row evenly distributed.
  • the diameter of the pressure chamber 1 1 is according to the embodiment 80mm, and the diameter 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 distance between the central axes of the two pressure chambers 1 1 and 13 is 92mm. This results in an ideal length of the flow holes 14 for homogeneous as possible, over the extension of the nozzle beam 1 uniform inflow of the pressurized water into the pressure distribution chamber 13, wherein the length is for example 34.5mm.
  • the arrangement of the impact body 20 centric in the pressure distribution chamber 13 results in a likewise homogenized and preferably low-turbulence inflow of the pressurized water in the adjoining the pressure distribution chamber 13 slot 19 so that the Nozzle strip 17 is applied substantially uniformly over its entire length with water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nozzles (AREA)

Abstract

La présente invention concerne une rampe de jets d'eau (1) pour le traitement de fibres par jets d'eau, qui comprend une partie supérieure (10) s'étendant longitudinalement, dans laquelle est ménagée une chambre de pression (11) de forme allongée, ladite chambre de pression (11) présentant un côté extrémité doté d'une ouverture (12) pour l'alimentation en eau et un côté extrémité opposé fermé, partie supérieure (10) dans laquelle est ménagée une chambre de répartition de pression (13) s'étendant parallèlement à la chambre de pression (11) et le long de laquelle sont répartis plusieurs orifices d'écoulement (14) ménagés dans la paroi intermédiaire (15) entre la chambre de pression (11) et la chambre de répartition de pression (13) et par lesquels l'eau peut être acheminée de la chambre de pression (11) à la chambre de répartition de pression (13), et qui comprend une partie inférieure (16) s'étendant longitudinalement et agencée contre la partie supérieure (10) de manière étanche aux liquides, une rampe de pulvérisation (17) munie d'orifices (18) de sortie d'eau étant placée dans ou contre la partie inférieure (16), et une fente (19) étant ménagée dans ladite partie supérieure, laquelle s'étend entre la chambre de répartition de pression (13) et la rampe de pulvérisation (17) pour l'alimentation en eau de la rampe de pulvérisation (17). Selon l'invention, les orifices d'écoulement (14) sont disposés entre la chambre de pression (11) et la chambre de répartition de pression (13), par rapport à la direction de l'étendue longitudinale de la partie supérieure (10), à une distance de 25 mm à 35 mm et/ou de 28 mm à 32 mm et/ou de 30 mm les uns des autres.
PCT/EP2017/072433 2016-10-12 2017-09-07 Rampe de jets d'eau pour le traitement de fibres par jets d'eau Ceased WO2018068952A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17768054.3A EP3526384B1 (fr) 2016-10-12 2017-09-07 Rampe de jets d'eau pour le traitement de fibres par jets d'eau
JP2019519695A JP2019531421A (ja) 2016-10-12 2017-09-07 水ジェットによる繊維加工のためのノズルバー
CN201780060028.6A CN109790665B (zh) 2016-10-12 2017-09-07 用水射流加工纤维的喷嘴梁

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016119481.6 2016-10-12
DE102016119481.6A DE102016119481A1 (de) 2016-10-12 2016-10-12 Düsenbalken für die Bearbeitung von Fasern mit Wasserstrahlen

Publications (1)

Publication Number Publication Date
WO2018068952A1 true WO2018068952A1 (fr) 2018-04-19

Family

ID=59887232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/072433 Ceased WO2018068952A1 (fr) 2016-10-12 2017-09-07 Rampe de jets d'eau pour le traitement de fibres par jets d'eau

Country Status (5)

Country Link
EP (1) EP3526384B1 (fr)
JP (1) JP2019531421A (fr)
CN (1) CN109790665B (fr)
DE (1) DE102016119481A1 (fr)
WO (1) WO2018068952A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117085378A (zh) * 2023-10-19 2023-11-21 烟台核信环保设备有限公司 一种改良型塑料滤板及立式压滤机

Citations (6)

* Cited by examiner, † Cited by third party
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
EP0725175B1 (fr) 1995-01-23 1999-03-24 FLEISSNER GmbH & Co. KG Maschinenfabrik Injecteur pour un dispositif envoyant de l'eau sous pression
EP1472397B1 (fr) 2002-02-07 2005-03-09 Fleissner GmbH Barre a buses disposee sur un dispositif pour produire des jets liquides
DE60011900T2 (de) * 1999-06-17 2005-08-25 Rieter Perfojet Vorrichtung zur behandlung von folienmaterialen durch druckwasserstrahlen
DE102005055939B3 (de) 2005-11-24 2007-02-08 Fleissner Gmbh Düsenbalken in einer Vorrichtung zur Erzeugung von Flüssigkeitsstrahlen
EP2302120A1 (fr) * 2009-09-22 2011-03-30 Groz-Beckert KG Injecteur pour une machine de traitement du textile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941729A1 (de) * 1999-09-01 2001-03-08 Fleissner Maschf Gmbh Co Düsenkörper zur Erzeugung von feinsten Flüssigkeitsstrahlen z. B. an Wasservernadelungseinrichtungen
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
CN104060403A (zh) * 2013-03-24 2014-09-24 仪征市四方轻纺机械有限公司 一种水刺头的水流压力控制装置
CN203546354U (zh) * 2013-09-29 2014-04-16 无锡众望四维科技有限公司 水刺固网机的高压水刺头
DE102016119483A1 (de) * 2016-10-12 2018-04-12 TRüTZSCHLER GMBH & CO. KG Düsenbalken für die Bearbeitung von Fasern mit Wasserstrahlen
DE102016119480A1 (de) * 2016-10-12 2018-04-12 TRüTZSCHLER GMBH & CO. KG Düsenbalken für die Bearbeitung von Fasern mit Wasserstrahlen

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
EP0725175B1 (fr) 1995-01-23 1999-03-24 FLEISSNER GmbH & Co. KG Maschinenfabrik Injecteur pour un dispositif envoyant de l'eau sous pression
DE60011900T2 (de) * 1999-06-17 2005-08-25 Rieter Perfojet Vorrichtung zur behandlung von folienmaterialen durch druckwasserstrahlen
EP1472397B1 (fr) 2002-02-07 2005-03-09 Fleissner GmbH Barre a buses disposee sur un dispositif pour produire des jets liquides
DE102005055939B3 (de) 2005-11-24 2007-02-08 Fleissner Gmbh Düsenbalken in einer Vorrichtung zur Erzeugung von Flüssigkeitsstrahlen
EP2302120A1 (fr) * 2009-09-22 2011-03-30 Groz-Beckert KG Injecteur pour une machine de traitement du textile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117085378A (zh) * 2023-10-19 2023-11-21 烟台核信环保设备有限公司 一种改良型塑料滤板及立式压滤机
CN117085378B (zh) * 2023-10-19 2024-01-02 烟台核信环保设备有限公司 一种改良型塑料滤板及立式压滤机

Also Published As

Publication number Publication date
EP3526384A1 (fr) 2019-08-21
EP3526384B1 (fr) 2020-08-12
DE102016119481A1 (de) 2018-04-12
CN109790665A (zh) 2019-05-21
CN109790665B (zh) 2021-07-30
JP2019531421A (ja) 2019-10-31

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