EP0383722B1 - Verwirbelungsdüse zum Verwirbeln von Multifilament garnen - Google Patents

Verwirbelungsdüse zum Verwirbeln von Multifilament garnen Download PDF

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Publication number
EP0383722B1
EP0383722B1 EP90810076A EP90810076A EP0383722B1 EP 0383722 B1 EP0383722 B1 EP 0383722B1 EP 90810076 A EP90810076 A EP 90810076A EP 90810076 A EP90810076 A EP 90810076A EP 0383722 B1 EP0383722 B1 EP 0383722B1
Authority
EP
European Patent Office
Prior art keywords
wall section
nozzle
interlacing
baffle
section
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
EP90810076A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0383722A2 (de
EP0383722A3 (en
Inventor
Helmut Ritter
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.)
Heberlein AG
Original Assignee
Heberlein Maschinenfabrik 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 Heberlein Maschinenfabrik AG filed Critical Heberlein Maschinenfabrik AG
Publication of EP0383722A2 publication Critical patent/EP0383722A2/de
Publication of EP0383722A3 publication Critical patent/EP0383722A3/de
Application granted granted Critical
Publication of EP0383722B1 publication Critical patent/EP0383722B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/24—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being perpendicular to the axis of rotation

Definitions

  • the invention relates to a intermingling nozzle for intermingling multifilament yarns, with a continuous yarn channel into which at least one air supply bore and a threading slot open laterally.
  • the threading slot is in some cases when the yarn is delivered without interruption at high speed, e.g. on a spinning machine, so that the yarn can be inserted into the yarn channel from the side during the run.
  • a threading slot In known intermingling nozzles with a threading slot, however, there is a risk that filaments and filament bundles, which are guided along the yarn channel wall in places with the air stream, will strike the edges of the threading slot and / or enter the threading slot. This then very easily leads to damage to the yarn, filament breaks and loop formation are not uncommon, especially with today's trend towards finer filaments.
  • swirling nozzles with a threading slot which can be opened for the thread insertion process and then closed again during operation, for example according to CH-A-661 753.
  • swirling nozzles with moving parts are not suitable for high speeds and wet operation, e.g. yarns with freshly applied spin finishes or spin finish, because spin finishes with filament particles can be deposited between moving surfaces and impair their function (e.g. seal).
  • operating errors are of course also possible with swirling nozzles with movable parts.
  • the object of the invention is therefore to provide a swirling nozzle of the type specified at the outset, which does not require any moving parts, but avoids the risk of filament damage from the threading slot.
  • the intermingling nozzle according to the invention is characterized in that the wall of the yarn channel has two cylindrical wall sections, namely a baffle wall section opposite the mouth of the air supply bore and a nozzle wall section adjacent to the mouth of the air supply bore, the threading slot between the baffle wall section and the Nozzle wall section opens into the yarn channel, and that the tangential plane containing the mouth edge of the threading slot located in the baffle wall section passes through the nozzle wall section to the baffle wall section.
  • the said tangential plane and the air stream leaving the mouth edge of the threading slot hit the cylindrical nozzle wall section adjacent to the mouth of the air supply bore, while the other mouth edge of the threading slot, seen from the inside of the thread channel, lies outside the said tangential plane (or in the limit case just in this tangential plane).
  • the swirling nozzle shown in FIGS. 1 and 2 has a nozzle body 1 and an impact body 2 which are fastened to one another.
  • the two bodies 1 and 2 could also be formed in one piece.
  • a continuous yarn channel 3 is recessed into which a threading slot 4 and an air supply bore 5 open laterally.
  • a running multifilament yarn (not shown) is guided through the yarn channel 3, the filaments of which are swirled together in places in the yarn channel by the blown air stream emerging from the air supply bore 5.
  • the yarn channel 3.1 of an embodiment of the intermingling nozzle according to the invention, with the threading slot 4 and the air supply bore 5, is shown on a larger scale in FIG. 3.
  • the wall of the yarn channel 3.1 contains a circular cylindrical baffle section 6.1 which, symmetrical with respect to the plane E containing the axis of the air supply bore 5 and parallel to the longitudinal direction of the yarn channel 3.1, extends from the upper mouth edge 7 of the threading slot 4 to an end edge 8 symmetrically opposite this mouth edge 7 extends, and also a circular cylindrical nozzle wall section 9.1, which, again symmetrically with respect to the plane E, extends from the lower mouth edge 10 of the threading slot 4 to an end edge 11 symmetrically opposite the mouth edge 10.
  • the axis of curvature A6 of the baffle section 6.1 and the axis of curvature A9 of the nozzle wall section 9.1 run parallel to one another at a distance from one another, and the radius of curvature R6 of the baffle section 6.1 is smaller than the radius of curvature R9 of the nozzle wall section 9.1, in such a way that those in the mouth edge 7 on the baffle section 6.1 placed tangential plane T goes through the nozzle wall section 9.1.
  • the mouth edge 10 of the threading slot 4 located in the nozzle wall section 9.1 is therefore - seen from the inside of the yarn channel 3.1 - outside the tangential plane T.
  • the part of the air flow emerging from the air supply bore 5 occurs, which is indicated schematically by the baffle wall section 6.1 as shown in FIG. 4 Mouth edge 7 is deflected out and which leaves the baffle section 6.1 at this mouth edge 7 approximately in the direction of the tangential plane T, does not enter the threading slot 4, but flows to the nozzle wall section 9.1, which further the air flow part from Threading slot 4 steers away.
  • the angle ⁇ between the sides of the tangential plane T facing the baffle section 6.1 and the nozzle wall section 9.1 is an obtuse angle.
  • FIG. 5 shows schematically the conditions in a known swirling nozzle with a baffle wall section 6.2 and a nozzle wall section 9.2, which lie on a common circular cylinder surface.
  • the tangential plane T placed in the mouth edge 7 on the baffle section 6.2 passes through the lower boundary wall 14 of the threading slot 4.
  • the partial air flow which leaves the baffle section 6.2 at the mouth edge 7 in the direction of the tangential plane T is therefore directed towards the lower mouth edge 10 of the threading slot 4 and is partially guided by this into the threading slot 4.
  • the symmetry of the yarn channel with reference to FIG. 3 with respect to the plane E in preferred embodiments of the intermingling nozzle according to the invention entails that the tangential plane T.1 placed in the end edge 8 on the baffle wall section 6.1 forms the same angle with the plane of symmetry E and with the nozzle wall section 9.1 like the tangential plane T. Therefore, the air flow schematically shown in FIG. 4 in the yarn channel 3.1 is also substantially symmetrical with respect to the plane E.
  • the symmetrical air flow counteracts a tendency for the multifilament yarn to be intermingled, for example towards the threading slot 4.
  • the transition wall section 12.1 should not extend into the air flow, that is to say it should lie outside the tangential plane T.1, viewed from the inside of the yarn channel 3.1.
  • a certain disturbance in the symmetry of the air flow in the yarn duct can result from the fact that air emerges from the yarn channel through the threading slot 4, in particular in the region of the ends of the yarn channel. This disturbance is counteracted with the embodiment according to FIG. 6.
  • the yarn channel 3.1 has the same shape as in Fig. 3, with the baffle section 6.1 and the nozzle wall section 9.1.
  • the transition wall section 12.1 shown in FIG. 3 in FIG. 6 is replaced by the opening of a slot 15 which is essentially symmetrical with respect to the plane E and is in relation to the plane E and which starts from a relief channel 16.
  • the threading slot 4 has boundary walls 13.1 and 14.1, which are preferably approximately at right angles to the plane E.
  • the baffle section 6.1 and the nozzle wall section 9.1 are each approximately circular cylindrical. However, this is not mandatory, the wall sections could also have other continuously rounded cylindrical shapes, e.g. oval or roughly elliptical in cross-section.
  • the threading slot 4 and the air supply bore 5 open laterally into the thread channel 3.3.
  • the wall of the thread channel 3.3 contains a circular-cylindrical baffle wall section 6.3 which, also here symmetrically with respect to the plane E, is symmetrical from the upper mouth edge 7 of the threading slot 4 to this mouth edge 7 opposite end edge 8 extends, and a cylindrical nozzle wall section 9.3, approximately elliptical in cross-section, which extends from the lower mouth edge 10 of the threading slot 4 to the end edge 11, which lies opposite the mouth edge 10 symmetrically with respect to the plane E.
  • transition wall section 12.3 which in this embodiment can be flat, for example.
  • the tangential plane T placed in the mouth edge 7 on the baffle section 6.3 also does not run into the threading slot 4 here, but goes through its mouth edge 10 and thus through the nozzle wall section 9.3, which starts from this mouth edge.
  • the baffle section and the nozzle wall section of the yarn channel do not lie on a common circular cylinder surface, but each have their own cylindrical shape, also gives the advantageous possibility of determining the ratio between the width of the yarn channel (measured perpendicular to the plane of symmetry E) to vary the height of the yarn channel (measured perpendicular to the width, ie in the plane E).
  • the width of the yarn channel is greater than its height.
  • the intermingling nozzles according to the invention can advantageously be used on spinning machines, in particular for intermingling pre-oriented multifilament yarns (POY), but also of ready-oriented (FOY) and fully drawn (FDY) multifilament yarns.
  • POY pre-oriented multifilament yarns
  • FOY ready-oriented multifilament yarns
  • FDY fully drawn

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nozzles (AREA)
EP90810076A 1989-02-15 1990-02-05 Verwirbelungsdüse zum Verwirbeln von Multifilament garnen Expired - Lifetime EP0383722B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH530/89A CH676559A5 (ko) 1989-02-15 1989-02-15
CH530/89 1989-02-15

Publications (3)

Publication Number Publication Date
EP0383722A2 EP0383722A2 (de) 1990-08-22
EP0383722A3 EP0383722A3 (en) 1990-12-05
EP0383722B1 true EP0383722B1 (de) 1993-08-04

Family

ID=4189119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810076A Expired - Lifetime EP0383722B1 (de) 1989-02-15 1990-02-05 Verwirbelungsdüse zum Verwirbeln von Multifilament garnen

Country Status (6)

Country Link
US (1) US5010631A (ko)
EP (1) EP0383722B1 (ko)
JP (1) JPH02234938A (ko)
KR (1) KR900012684A (ko)
CH (1) CH676559A5 (ko)
DE (1) DE59002133D1 (ko)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681633A5 (ko) * 1990-07-02 1993-04-30 Heberlein & Co Ag
US5950290A (en) * 1997-09-12 1999-09-14 International Machinery Sales, Inc. Jet for interlacing textile yarns
US5970593A (en) * 1997-09-12 1999-10-26 International Machinery Sales, Inc. Jet for interlacing textile yarns
GB9814476D0 (en) * 1998-07-04 1998-09-02 Fibreguide Ltd Yarn treatment jet
EP1165868B1 (de) 1999-03-03 2006-05-31 Heberlein Fibertechnology, Inc. Verfahren und vorrichtung für die behandlung von filamentgarn sowie verwendung der vorrichtung
US5964015A (en) * 1999-05-21 1999-10-12 International Machinery Sales, Inc. Textile jet nozzle with smooth yarn channel
US6052878A (en) * 1999-05-28 2000-04-25 E. I. Du Pont De Nemours And Company Methods and apparatus for interlacing filaments and methods of making the apparatus
US6868593B1 (en) 1999-09-22 2005-03-22 Ryuji Mitsuhashi Tandem interlacing textile jet nozzle assembly
EP1411014A1 (en) * 2002-10-17 2004-04-21 Giudici S.p.a. Method and device for the production of covered elastic yarn and for automatically replacing feeding spools
TW200523410A (en) * 2003-12-02 2005-07-16 Giudici S P A Method and device for the production of a covered elastic yarn and for automatic replacement of feed spools
ITBI20040004A1 (it) 2004-10-12 2005-01-12 Sinterama S P A Dispositivo ad elevato rendimento per l'interlacciatura ad aria di un filo, e relativo metodo
TWI313310B (en) * 2005-03-20 2009-08-11 Oerlikon Heberlein Temco Wattwil A Process and entangling nozzle for the production of knotted yarn
CH699327B1 (de) 2007-02-14 2010-03-15 Oerlikon Heberlein Temco Wattw Vorrichtung zum gleichzeitigen Behandeln von mehreren multifilen Fäden.
EP2886690B1 (de) * 2013-12-19 2019-07-24 Heberlein AG Düse und verfahren zur herstellung von knotengarn
CN115262006A (zh) * 2022-07-29 2022-11-01 江苏恒科新材料有限公司 一种fdy聚酯纤维用环形震动纺丝油嘴

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5212362A (en) * 1975-07-18 1977-01-29 Toray Industries Fluid treatment apparatus
US4346552A (en) * 1979-02-16 1982-08-31 Toray Industries, Inc. Bulky textured multifilament yarn
US4345425A (en) * 1979-02-16 1982-08-24 Toray Industries, Inc. Process for making bulky textured multifilament yarn
FR2527653B1 (fr) * 1982-06-01 1985-06-28 Europ Composants Electron Buse d'entremelement
DE3335704C2 (de) * 1982-10-08 1986-08-28 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Luftdüse zur Erzeugung von knotenartigen Verflechtungen in laufenden Multifilamentfäden
EP0262237B1 (de) * 1986-09-25 1989-12-20 BASF Aktiengesellschaft Vorrichtung zur Verwirbelung von Garnen
GB8518390D0 (en) * 1985-07-20 1985-08-29 Rieter Scragg Ltd Processing textile yarns

Also Published As

Publication number Publication date
DE59002133D1 (de) 1993-09-09
US5010631A (en) 1991-04-30
KR900012684A (ko) 1990-09-01
EP0383722A2 (de) 1990-08-22
JPH02234938A (ja) 1990-09-18
EP0383722A3 (en) 1990-12-05
CH676559A5 (ko) 1991-02-15

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