EP0256448B1 - Buse de texturation pour fil en mouvement - Google Patents

Buse de texturation pour fil en mouvement Download PDF

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Publication number
EP0256448B1
EP0256448B1 EP87111461A EP87111461A EP0256448B1 EP 0256448 B1 EP0256448 B1 EP 0256448B1 EP 87111461 A EP87111461 A EP 87111461A EP 87111461 A EP87111461 A EP 87111461A EP 0256448 B1 EP0256448 B1 EP 0256448B1
Authority
EP
European Patent Office
Prior art keywords
piston
nozzle
diaphragm
nozzle according
thread
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
EP87111461A
Other languages
German (de)
English (en)
Other versions
EP0256448A2 (fr
EP0256448A3 (en
Inventor
Manfred Greb
Rainer Keuth
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
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 Barmag AG filed Critical Barmag AG
Publication of EP0256448A2 publication Critical patent/EP0256448A2/fr
Publication of EP0256448A3 publication Critical patent/EP0256448A3/de
Application granted granted Critical
Publication of EP0256448B1 publication Critical patent/EP0256448B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet

Definitions

  • the invention relates to a nozzle for texturing a running thread, which consists of two halves, which are divided in a parting plane, pressed tightly against one another during operation and can be pulled apart to insert the thread, at least one half of which in the parting plane has a thread channel formed by a groove. wherein one half has a flexible piston which extends essentially over the length and width of the other half and which is movable perpendicular to the parting plane under the action of a compressive force acting on its rear side.
  • nozzles are designed for texturing chemical fibers that run at a high, constant speed so that the thread can be inserted laterally into the nozzle.
  • a pneumatic conveying device in which the threads are placed in a thread channel which is provided in the parting plane of two nozzle halves which can be pressed together by means of a cylinder-piston unit.
  • the nozzle halves can be opened for thread insertion.
  • a pressure medium is applied to the thread channel to convey the inserted thread when the nozzle is closed.
  • EP-A-0 249 804 discloses a nozzle for treating a thread, in which these difficulties are to be avoided by using a nozzle in a casing housed, consisting of two in the separating surface having a thread channel halves one of the two halves of an elastic or flexible material, for example a 2 to 8 mm, preferably 3 to 6 mm thick plate made of stainless steel.
  • the back of the elastic half of the nozzle is loaded by a series of strong compression springs, which in turn are supported on the adjacent inner wall of the casing, which is compressed by a cylinder-piston unit.
  • a uniform contact pressure for the entire sealing surface is not guaranteed by the construction described, despite the flexible nozzle half.
  • the object to be achieved by the invention is to show a way to remedy the still existing shortcomings of the known thread treatment nozzle. This object is solved by claim 1.
  • the one nozzle half consists of a guide body, which has an elongated cylinder space, and a piston, which is movable in the cylinder space.
  • the piston is designed so soft in particular in the longitudinal direction or perpendicular to the thread running direction, but if necessary also in both directions, that it is easily deformable.
  • the piston on its back is pressed against the flat surface of the other nozzle half by introducing a pressure medium, in particular the heating medium, into the cylinder space. Because of its softness, it can be used by everyone Adjust unevenness caused by production or operation in such a way that no leaks occur.
  • a half-groove is worked into the piston plate and / or the parting plane of the other nozzle half, which together with the half-groove of the respective other nozzle half forms the thread channel.
  • the piston must have a certain thickness. Therefore, a suitable means of making the piston soft is to see that the piston on its pressurized rear side is weakened by a large number of transverse grooves.
  • the transverse grooves are essentially perpendicular to the thread running direction and parallel to one another. If the piston is also designed to be flexible in the transverse direction, longitudinal grooves are accordingly also provided, which extend parallel to the direction of the thread.
  • EP-A 184625 discloses a yarn treatment nozzle in which one half is flexible and is mechanically pressed on at several points. However, this means that the required density cannot be produced, since there are faults between the mechanical supports.
  • a particular problem is the sealing of the piston in its cylinder space. This sealing must not impair the softness of the piston. Conversely, the softness must not impair the seal.
  • the piston is backed with a flexible membrane which essentially fills the cross section of the cylinder space.
  • This membrane is sealed against the cylinder space by suitable sealing elements, rings and the like and is movable with the piston.
  • the seal is preferably made by a frame-shaped ring which is essentially adapted to the cross section of the cylinder space and nestles into the corners between the walls of the cylinder space and the membrane.
  • a holding frame is provided which has a slightly smaller cross section than the cylinder space and which has a recess for receiving the sealing ring.
  • the piston can also be deposited by a cup-shaped membrane which lies with the bottom of the pot on the piston and with its side walls nestles against the side walls of the cylinder space.
  • a protective layer in the form of a thin plate, membrane or the like is placed between the piston and the bottom of the pot, which likewise does not impair the softness of the piston.
  • the piston is preferably acted upon by the treatment medium on its rear side.
  • Hot air and steam, in particular steam, are particularly suitable as the treatment medium.
  • the nozzles according to the preamble can be part of a tubular storage chamber into which the thread is conveyed and pushed up to a thread plug.
  • the storage chamber has lateral holes through which the pressure medium escapes.
  • this tubular stowage chamber which is aligned with the thread channel of the nozzle during operation, must also be divided and openable.
  • the tubular storage chamber is divided in its central axial plane. One half is firmly connected to one half of the nozzle. The other half of the storage chamber is firmly connected to the piston, the wall of the cylinder space having a corresponding recess. This other half of the storage chamber protrudes from this recess.
  • the storage chamber is designed with relatively thin walls so that the pressure medium can easily escape.
  • the guide body has an extension which extends parallel to the stowage chamber. At the end of this extension is a resilient support, which supports in particular the free end of the storage chamber.
  • the operation of the stowage chamber is a particular problem.
  • the texturing nozzle has to be opened for threading.
  • the one nozzle half and the guide body can be firmly connected to one another and have a longitudinal slot on one side in the parting plane.
  • the piston is retracted flush with the one diaphragm wall, so that the running thread can be inserted through the longitudinal slot.
  • the nozzle is then closed by pressurizing the piston.
  • one of the nozzle halves can be moved perpendicular to the parting plane.
  • a swivel arm is particularly suitable for this purpose, the swivel axis of which lies in the extension of the parting plane and the free nozzle end of which sits the movable nozzle half.
  • two pivot levers are provided which have a common pivot axis, but which are arranged one below the other in the thread running direction.
  • the swivel levers are of unequal length and point one or a pair of texturing nozzles at each end. The longer of the pivot levers can be pivoted independently of the shorter of the pivot levers to open its texturing nozzles.
  • Fig. 1 shows the longitudinal section
  • Fig. 2 shows the cross section through a texturing nozzle with storage chamber.
  • FIG. 3 and FIG. 4 show the rear view of an exemplary embodiment of a piston.
  • the texturing nozzle consists of two rectangular halves 1 and 2 and an adjoining stowage chamber 3.
  • the texturing nozzle and stowage chamber 3 are divided in a longitudinal plane 21.
  • the left half of the nozzle 1 in FIG. 1 with the attached half of the storage chamber 3 is fastened in the machine frame 6.
  • the nozzle half 2 and the half of the storage chamber 3 assigned to it can be moved perpendicular to the parting plane.
  • the second nozzle half 2 consists of a guide body 4 and, as a functionally essential part: a piston 5.
  • An elongated cylinder space 7 is incorporated into the guide body 4.
  • the piston 5 is fitted into this cylinder space 7 in such a way that it is movable in the longitudinal direction.
  • transverse grooves 15 are incorporated into the rear of the piston. The transverse grooves are so close together that a desired flexibility of the piston in the longitudinal direction is achieved.
  • longitudinal grooves 16 can also be introduced into the rear of the piston, so that the piston also has a desired flexibility in the transverse direction.
  • the piston is backed with a membrane 17 on its rear side facing the cylinder space 7.
  • This is a thin plate, e.g. Metal plate, plastic plate, which is also very flexible.
  • the shape of the membrane is also adapted to the shape of the cylinder space 7.
  • the circumferential corner between the membrane 17 and the cylinder walls 7 is sealed by a frame-shaped sealing ring 18.
  • the sealing ring 18 is held in its place by a holding frame 19, which is also adapted to the cross section of the cylinder space 7 with greater tolerance.
  • the frame 19 has a groove, notch or the like on one of its circumferential corners, into which the frame-shaped seal 18 is inserted. However, the seal 18 projects beyond the periphery of the holding frame 19 in such a way that the seal rests on the walls of the cylinder space 7 and on the membrane 17.
  • a pressure medium is applied to the cylinder space 7 through the connecting channel 20. It is preferably the heating medium that is also applied to the texturing nozzle.
  • both the first nozzle half 1 and the piston 5 have a groove which forms the thread channel 12 in the closed state (cf. FIG. 2).
  • the thread channel 12 can be acted upon by hot air connection 9, ring channel 10 and tap holes 11 with hot air.
  • the openings of the ring channel 10 in the parting plane 21 of both the first nozzle half 1 and the piston 5 are close to one another in the closed state, so that hot air also flows into the piston.
  • the stitch holes open into the thread channel at an acute angle.
  • the hot air flowing into the thread channel on the one hand exerts an impulse on the running thread and on the other hand the thread is heated.
  • the thread is compressed into a thread plug in the storage chamber.
  • On the surface of the thread plug the hot air can escape through the slots 22 of the storage chamber.
  • the thread plug 23 is transported by the conveyor wheels 24 at the end of the storage chamber.
  • the movable half of the storage chamber 3 is attached to the piston 5. Therefore, the guide body 4 has a corresponding recess in the area of the passage of this storage chamber half.
  • the guide body 4 has an extension 25. At the end of which there is a resilient support 26, which causes the two halves of the storage chamber 3 to lie tightly on one another and free of movement during operation.
  • hot air duct 9 and the connecting duct 20 are connected to one another outside the texturing nozzle.
  • the guide body 4 is moved away from the stationary first nozzle half for thread application.
  • the supply of hot air to the connecting channel 20 is prevented, while the supply of hot air to the hot air connection 9 is maintained at reduced pressure.
  • the second texturing nozzle half is moved back again, so that the first texturing nozzle half 1 and the piston 5 lie one on top of the other in the parting plane 21.
  • the centering pins 13 in the piston 5, which have a conical tip, and the centering holes 14 in the first texturing nozzle half ensure that the piston 5 assumes its position during operation so that the two groove halves in the first texturing nozzle half and in the piston 5 close exactly cover the thread channel 12. It also ensures that the openings of the ring channel 10 in the parting plane 21 lie exactly on top of each other.
  • the connecting duct 20 is now connected to the hot air source. As a result, the cylinder space 7 is pressurized.
  • the pressure medium initially seals the sealing ring 18 with respect to the membrane 17 and the cylinder wall. Furthermore, the pressure medium presses the piston 5 firmly against the parting plane 21 of the first texturing nozzle half 1.
  • the parting plane 21 of the piston 5 can conform well to the unevenness of the parting plane 21 of the first texturing nozzle half 1 under the pressure of the heating medium on its rear side. Even faults that e.g. occur by heating, are compensated by the soft piston 5.
  • the sealing function is carried out independently of the piston by the membrane and the sealing ring.
  • the piston geometry therefore has no adverse effect on the sealing function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Coating Apparatus (AREA)
  • Closures For Containers (AREA)

Claims (12)

  1. Filière pour texturer un fil en défilement, constituée par deux moitiés (1, 2) séparées dans un plan de partage (21), pressées l'une contre l'autre de manière étanche pendant le fonctionnement et aptes à être écartées l'une de l'autre pour la mise en place du fil, au moins l'une de ces moitiés (1; 2) présentant, dans le plan de séparation (21), un canal à fil (12) formé par une rainure,
    une moitié (2) présentant un piston flexible (5) qui s'étend sensiblement sur la longueur et la largeur de l'autre moitié (1) et qui est mobile perpendiculairement au plan de séparation (21) sous l'action d'une pression agissant sur sa face arrière,
    ce piston (5) étant guidé avec étanchéité dans un corps-guide (4) dans lequel est aménagée une chambre-cylindre (7) pouvant être exposée à un fluide sous pression afin d'appliquer la force de pression,
    et le piston (5) étant doublé par une membrane flexible (17), laquelle membrane (17) remplit sensiblement la section droite de la chambre-cylindre (7) et est montée avec étanchéité dans la chambre-cylindre (7) au moyen d'un organe d'étanchéité (18), de manière telle que cette membrane (17) soit mobile perpendiculairement au plan de séparation (21) de l'autre moitié (1).
  2. Filière selon revendication 1,
    caractérisée
    par le fait que la membrane (17) est une plaque mince et par le fait qu'il est prévu, comme organe d'étanchéité (18), un anneau en forme de cadre sensiblement adapté à la section droite de la chambre-cylindre (7), ledit anneau, disposé du côté de la membrane (17) tourné vers la chambre-cylindre (7) étant appliqué dans le coin entre membrane (17) et paroi de cylindre.
  3. Filière selon revendication 2,
    caractérisée
    par le fait que l'anneau en forme de cadre (18) est maintenu par un cadre-support (19) qui possède une section droite légèrement plus petite que la chambre-cylindre (7) et qui présente, sur son arête extérieure tournée vers l'arête périmétrique entre membrane (17) et paroi de cylindre, un évidement pour recevoir l'anneau d'étanchéité (18).
  4. Filière selon revendication 2,
    caractérisée
    par le fait que l'étanchéité entre le piston (5) et la chambre-cylindre (7) est assurée par une membrane (17) en forme de pot dont le fond s'applique contre le piston (5) et dont les parois latérales s appliquent contre les parois latérales de la chambre-cylindre (7).
  5. Filière selon revendication 4,
    caractérisée
    par le fait que la membrane en forme de pot (17) est en caoutchouc ou en un autre matériau approprié ayant l'élasticité du caoutchouc.
  6. Filière selon au moins l'une des revendications 1 à 5,
    caractérisée
    par le fait que le piston (5) est rendu flexible par des rainures transversales (15) en direction longitudinale et/ou par des rainures longitudinales (16) en direction transversale.
  7. Filière selon revendication 4 ou 6,
    caractérisée
    par le fait qu'entre le fond du pot de la membrane (17) et la face arrière du piston (5) est insérée une mince plaque souple de protection de la membrane en forme de pot (17) qui recouvre les rainures (15, 16) du piston (5).
  8. Filière selon l'une des revendications 1 à 7,
    caractérisée
    par le fait que le fluide de pression sollicitant le piston (5) est aussi le fluide de pression servant à la manipulation du fil.
  9. Filière selon l'une des revendications 1 à 8,
    caractérisée
    par le fait qu'une chambre d'accumulation tubulaire (3), perforée ou fendue, partagée dans son plan axial médian, se raccorde à la filière (1, 2),
    par le fait qu'une moitié de la chambre d'accumulation (3) est solidaire de la moitié fixe (1) de la filière (1, 2) et l'autre moitié de la chambre d'accumulation (3) est solidaire du piston (5), et par le fait que la paroi de la chambre-cylindre (7) présente un évidement correspondant.
  10. Filière selon revendication 9,
    caractérisée
    par le fait que le corps-guide (4) présente un prolongement (25) avec un organe d'appui (26) pour la moitié de chambre d'accumulation (3) liée au piston (5).
  11. Filière selon l'une des revendications 1 à 10,
    caractérisée
    par le fait qu'une moitié de filière (2) est mobile perpendiculairement au plan de séparation (21).
  12. Filière selon revendications 1 à 10,
    caractérisée
    par le fait que la moitié de filière mobile (2) est montée à l'extrémité d'un bras pivotant dont l'axe de pivotement est situé dans le prolongement du plan de séparation (21).
EP87111461A 1986-08-13 1987-08-07 Buse de texturation pour fil en mouvement Expired - Lifetime EP0256448B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3627513A DE3627513C2 (de) 1986-08-13 1986-08-13 Düse zum Texturieren eines laufenden Fadens
DE3627513 1986-08-13

Publications (3)

Publication Number Publication Date
EP0256448A2 EP0256448A2 (fr) 1988-02-24
EP0256448A3 EP0256448A3 (en) 1990-07-25
EP0256448B1 true EP0256448B1 (fr) 1993-01-07

Family

ID=6307337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111461A Expired - Lifetime EP0256448B1 (fr) 1986-08-13 1987-08-07 Buse de texturation pour fil en mouvement

Country Status (3)

Country Link
US (1) US4829640A (fr)
EP (1) EP0256448B1 (fr)
DE (2) DE3627513C2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722773C1 (de) * 1987-07-09 1989-01-12 Hollingsworth Gmbh Pneumatische Rohrfoerderanlage fuer Fasern
DE3915691C2 (de) * 1988-05-18 1996-06-20 Barmag Barmer Maschf Verfahren zur Stauchkammertexturierung und Vorrichtung zur Druchführung des Verfahrens
US5054173A (en) * 1989-05-18 1991-10-08 Barmag Ag Method and apparatus for the enhanced crimping of multifilament yarn
RU2041981C1 (ru) * 1989-11-11 1995-08-20 Бармаг АГ Фильера для текстурирования синтетической нити
CH679785A5 (fr) * 1989-12-14 1992-04-15 Rieter Ag Maschf
DE59201194D1 (de) * 1991-10-26 1995-02-23 Barmag Barmer Maschf Vorrichtung zum Stauchkräuseln synthetischer Filamentfäden.
DE4422252A1 (de) * 1993-07-15 1995-01-19 Barmag Barmer Maschf Texturierdüse
DE4435923B4 (de) * 1993-10-19 2008-01-24 Oerlikon Textile Gmbh & Co. Kg Vorrichtung und Verfahren zum gleichmäßigen Texturieren eines laufenden Fadens
EP0957189A2 (fr) * 1995-08-23 1999-11-17 Maschinenfabrik Rieter Ag Procédé et dispositif pour le frisage à boíte de bourrage de câbles de filaments synthétiques
US5976453A (en) * 1998-06-29 1999-11-02 Owens-Corning Sweden Ab Device and process for expanding strand material
GB9902501D0 (en) * 1999-02-05 1999-03-24 Fibreguide Ltd Air jet
DE50114368D1 (de) * 2000-03-01 2008-11-13 Oerlikon Textile Gmbh & Co Kg Verfahren und vorrichtung zum stauchkräuseln
US8474115B2 (en) * 2009-08-28 2013-07-02 Ocv Intellectual Capital, Llc Apparatus and method for making low tangle texturized roving
RU2020111071A (ru) * 2017-08-31 2021-09-30 ОУЭНС КОРНИНГ ИНТЕЛЛЕКЧУАЛ КАПИТАЛ, ЭлЭлСи Устройство для текстурирования нитевого материала
CN107829176B (zh) * 2017-11-17 2019-12-03 武汉纺织大学 一种用于纱线超光洁处理的瓣合式装置的应用

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2049740A1 (de) * 1969-10-10 1971-04-15 Imperial Chemical Industries Ltd , London Pneumatische Vorrichtung zur Förde rung \ on Fadenmatenalien
EP0249804A2 (fr) * 1986-06-17 1987-12-23 Maschinenfabrik Rieter Ag Tuyères de traitement de fils

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261071A (en) * 1965-05-25 1966-07-19 Du Pont Yarn treating jet
US3324526A (en) * 1965-05-26 1967-06-13 Du Pont Yarn treating jet
US4453298A (en) * 1980-03-31 1984-06-12 Rieter Machine Works, Ltd. Construction of thread texturizing nozzles
EP0108205A1 (fr) * 1982-10-12 1984-05-16 Maschinenfabrik Rieter Ag Tuyère de traitement de fil
WO1984002359A1 (fr) * 1982-12-18 1984-06-21 Barmag Barmer Maschf Chambre de chauffe pour fils continus
US4641504A (en) * 1984-06-12 1987-02-10 Barmag Barmer Maschinenfabrik Ag Yarn heating chamber
DE3577733C5 (de) * 1984-12-03 2010-12-30 Maschinenfabrik Rieter Ag Garnbehandlungsdüse.
EP0189099B1 (fr) * 1985-01-19 1989-01-11 B a r m a g AG Tuyère pour la texturation d'un fil
CN1005199B (zh) * 1985-01-19 1989-09-20 巴马格·巴默机器制造股份公司 丝传送和变形用的喷嘴
JPH06269866A (ja) * 1993-03-24 1994-09-27 Mazda Motor Corp プレス成形装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2049740A1 (de) * 1969-10-10 1971-04-15 Imperial Chemical Industries Ltd , London Pneumatische Vorrichtung zur Förde rung \ on Fadenmatenalien
EP0249804A2 (fr) * 1986-06-17 1987-12-23 Maschinenfabrik Rieter Ag Tuyères de traitement de fils

Also Published As

Publication number Publication date
EP0256448A2 (fr) 1988-02-24
DE3627513A1 (de) 1988-02-18
EP0256448A3 (en) 1990-07-25
DE3627513C2 (de) 1996-09-19
DE3783403D1 (de) 1993-02-18
US4829640A (en) 1989-05-16

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