EP0110150B1 - Dispositif de filature à tuyère - Google Patents

Dispositif de filature à tuyère Download PDF

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Publication number
EP0110150B1
EP0110150B1 EP83110769A EP83110769A EP0110150B1 EP 0110150 B1 EP0110150 B1 EP 0110150B1 EP 83110769 A EP83110769 A EP 83110769A EP 83110769 A EP83110769 A EP 83110769A EP 0110150 B1 EP0110150 B1 EP 0110150B1
Authority
EP
European Patent Office
Prior art keywords
guide tube
roller pair
spinning device
delivery roller
jet spinning
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
Application number
EP83110769A
Other languages
German (de)
English (en)
Other versions
EP0110150A1 (fr
Inventor
Herbert Vord. Stalder
Emil Briner
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter 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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0110150A1 publication Critical patent/EP0110150A1/fr
Application granted granted Critical
Publication of EP0110150B1 publication Critical patent/EP0110150B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/002—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for false-twisting spinning machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only

Definitions

  • the invention relates to a nozzle spinning device with a pneumatic twist nozzle arranged after a pair of delivery rollers for taking over a non-spun yarn delivered by the pair of delivery rollers, and with a pair of outlet rollers downstream of the twist nozzle for taking over the spun yarn delivered by the twist nozzle.
  • the yarn occasionally breaks in the nozzle spinning process, which is determined by an automatic monitoring system not belonging to the invention.
  • the sliver feed is interrupted by the automatic system.
  • a device at the end of a fiber drafting device is also known, in which a fiber sliver is transported through a conveying nozzle and fed into the gusset area of two take-off rollers with a guide tube.
  • the device is used to feed the stretched belt to a rotary pot belt reel and thus to automate an activity that was originally carried out manually.
  • the sliver is given a certain amount of wrong rotation in the conveying nozzle in order to give it more strength, but there is no spinning, in particular no nozzle spinning.
  • Pneumatic conveying has very different requirements when it comes to nozzle spinning than when conveying a fine yarn compared to it between two draw-off rollers at the end of a fiber drafting system.
  • well-defined exhaust air conditions must be observed when spinning a nozzle.
  • the object of the invention is to provide a nozzle spinning device of the type mentioned which enables the automatic elimination of honeycomb fractures in a structurally uncomplicated manner, in which the spinning yarn is maintained at high speed by the discharge roller pair with the spun yarn maintained during operation without substantial throttling of the exhaust air flow is transferred.
  • the swirl nozzle is connected to a pneumatic guide tube which projects so close to the pair of outlet rollers that the yarn is conveyed into the converging space of the pair of outlet rollers and is thereby automatically detected by the pair of outlet rollers, the between the circumferential mouth edge of the pneumatic guide tube and the resultant air outlet cross-section of the cylindrical surface of the pair of outlet rollers is essentially not smaller than a mouth cross-section of the pneumatic guide tube measured perpendicular to the direction of flow.
  • the air outlet cross section mentioned is the smallest area between the mouth edge of the pneumatic guide tube and the opposite cylindrical surfaces of the pair of outlet rollers.
  • Mouth cross-section is understood to mean the inner cross-section of the pneumatic guide tube in the area in front of its mouth.
  • the advantages of the invention are that, on the one hand, the self-threading of the yarn into the pair of outlet rollers is solved in the simplest manner, and on the other hand, in the case of automation for eliminating thread breaks, only the easier transfer of the yarn from the outlet rollers to the winding device has to be mechanized.
  • a nozzle spinning device 1 comprises one arranged next to a pair of delivery rollers 2 pneumatic swirl nozzle 3 with a directly connected pneumatic guide tube 4, which opens against a pair of outlet rollers 5.
  • the pneumatic guide tube guides an air flow under normal aerodynamic conditions, i.e. H. without abrupt changes in cross-section and with a roughness that is common for pneumatic conveying pipes for fibers.
  • the nozzle spinning device 1 is connected downstream of a drafting system 6, to which the pair of delivery rollers 2 also belongs.
  • the drafting system 6 also comprises a middle pair of rollers 7 with guide straps 7.1 and 7.2, an input pair of rollers 8, as well as a second sliver condenser 9 arranged between the pair of rollers 7 and the pair of rollers 8 and a first sliver condenser 10 arranged in front of the pair of input rollers 8.
  • the drafting unit 6 takes over a sliver 11, which runs into the drafting device in the direction of the arrow, and is drawn to a still unspun yarn, delivered by the pair of delivery rolls 2 and automatically taken over by the pneumatic swirl nozzle 3.
  • Sliver 11 can be understood to mean a stretch belt or one or more combined flyer slits.
  • this unspun yarn is spun into a finished yarn 12 taken over from the pair of outlet rollers 5.
  • the yarn 12 leaves the pair of rollers 5 in the direction of the arrow and is finally taken over by a winding device (not shown).
  • drafting arrangement 6 instead of the drafting arrangement 6 shown, another drafting arrangement can also be used, which is capable of delivering an unspun yarn at the same speed.
  • the swirl nozzle 3 is known per se from DE-B-27 22 319.
  • This swirl nozzle 3 is provided with a cylindrical surface 14 and a stop 15 in addition to receiving a sleeve 13 provided on the guide tube 4.
  • the guide tube 4 can be fixed to the swirl nozzle 3 with a clamping ring (not shown) which comprises the two parts.
  • a thread (not shown) can be provided for fixing the guide tube 4 to the swirl nozzle 3.
  • the guide tube 4 has an inner wall 16, which has the same diameter as the outlet channel C at the connection 17 to the outlet channel C of the swirl nozzle 3.
  • the swirl nozzle 3 and the guide tube 4 can also be produced in one piece (not shown) or the tube 4 can be composed of several parts (not shown).
  • the outlet-side mouth edge 18 of the guide tube 4 protrudes so close to the outlet roller pair 5 that the yarn 12 is conveyed into the converging space 19 of the outlet roller pair 5 and is thereby grasped by the latter.
  • the air outlet cross-section between the mouth edge 18 and the cylindrical surface of the outlet roller pair 5 must not be substantially less than the mouth cross-section measured above and perpendicular to the direction of flow. This condition applies to all variants to be described.
  • the edge 20 in FIG. 4 becomes the edge 20.1, in FIG. 5 the edge 20.2, in FIG. 6 the edge 20.3, in FIG. 7 the edge 20.4, in FIG. 8 the edge 20.5 and in FIG. 9 to edge 20.6.
  • the arrangement of the guide tube 4 must be such that its axis of symmetry (not shown) coincides with the thread path in the region of the outlet mouth.
  • the wall of the guide tube 4 has an arc piece 21 in the region of the mouth, in FIG. 8 a deflection part 22 and in FIG. 9 a deflection part 23.
  • the bow piece 21 and the deflecting parts 22 and 23 support the deflection of the flow and the yarn when it is drawn into the converging space 19.
  • the curved piece 21 is formed by the bending of the guide tube 4 in the mouth region shown in FIG. 7.
  • the deflecting parts 22 and 23 are flat plate parts which, as in Fig. 8 and. 9 shown, with an inclination angle a respectively. ⁇ are attached to a milled surface of the guide tube 4 in the mouth region.
  • the measure of the angle of inclination a resp. ß depends on the inclination of the pair of outlet rollers 5 to the guide tube 4, and on the speed of the air flow and is determined empirically in practice.
  • FIG. 9 shows a further measure influencing the direction of flow, in which the distance between the cylindrical surface of the outlet roller pair 5 and the mouth edge 18.6 is smallest in the lowest region, ie opposite the lower roller 5.1, and to the uppermost region of the edge 18.6 is gradually increasing.
  • the air outlet in the lowest Area of the edge 18.6 be designed such that the yarn 12 is certainly not conveyed past the lower outlet roller 5.1 past the edge 20.6 into the open air, but into the converging space 19.
  • the amount of air flowing through the guide tube 4 corresponds to the amount of air emitted by the swirl nozzle 3.
  • the free yarn end of the yarn 12 is directed through the guide tube 4 against and into the converging space 19 so that it is removed from the pair of rollers 5 can be detected.
  • the guide tube 4 can have a cone (not shown) that widens towards the pair of outlet rollers 5.
  • This cone can have the same opening angle (not shown) over the entire length of the guide tube.
  • the opening angle should not be significantly larger than the opening angle of the output channel.
  • the aforementioned cross-section of the mouth is the cross-section of the mouth opening itself in FIG. 3, while in the remaining figures it is the cross-section still affecting the entire circumferential tube wall, the immediately following the obliquely cut mouth (FIG. 5) or the profiled mouth (FIG. 4 and 6 to 9) follows.
  • One advantage of the favorable flow design of the guide tube is the possibility of damping the noise caused by the air outlet.
  • a use, not shown, of the nozzle spinning device in a horizontal position is also possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (8)

1. Dispositif de filature à tuyère, avec une buse pneumatique de torsion (3) disposée après une paire de cylindres de livraison (2), pour la réception d'un fil non filé, délivré par la paire de cylindres de livraison (2), ainsi qu'avec une paire de cylindres d'extraction (5) disposée après la buse de torsion (3) pour la réception du fil filé, (12), délivré par la buse de torsion (3), caractérisé par le fait qu'un tuyau pneumatique de guidage (4) est raccordé à la buse de torsion (3) qui s'approche aussi près que possible de la paire de cylindres d'extraction (5), de sorte que le fil (12) est transporté dans l'espace convergent (19) de la paire de cylindres d'extraction (5) et est, par cela, saisi automatiquement par la paire de cylindres d'extraction (5), procédé dans lequel la section de sortie d'air, qui est produite entre le bord périphérique de l'embouchure (18, 18.1, 18.2,18.3,18.4,18.5,18.6) du tuyau pneumatique de guidage (4) et les surfaces cylindriques de la paire de cylindres d'extraction (5), est principalement inférieure une section d'embouchure du tuyau pneumatique de guidage (4), mesurée perpendiculairement au sens d'écoulement.
2. Dispositif de filature à tuyère selon revendication 1, caractérisé par le fait que le tuyau pneumatique de guidage (4) ne possède pas de changements de section abruptes.
3. Dispositif de filature à tuyère selon revendication 1 ou 2, caractérisé par le fait que le bord de l'embouchure (18, 18.2) du tuyau pneumatique de guidage (4) est situé dans un plan.
4. Dispositif de filature à tuyère selon revendication 3, caractérisé par le fait que le plan est essentiellement parallèle à un plan imaginé comprenant les axes des cylindres d'extraction (5).
5. Dispositif de filature à tuyère selon revendication 1 ou 2, caractérisé par le fait que le bord d'embouchure (18.1, 18.3, 18.4, 18.5, 18.6) du tuyau pneumatique de guidage (4), qui s'avance partiellement dans l'espace convergent (19) compris entre les cylindres d'extraction (5), est approprié principalement à la surface cylindrique de la paire de cylindres d'extraction (5).
6. Dispositif de filature à tuyère selon revendication 5, caractérisé par le fait que la distance comprise entre les surfaces cylindriques de la paire de cylindres d'extraction (5) et le bord d'embouchure (18.1, 18.3, 18.4, 18.5) du tuyau pneumatique de guidage (4) reste essentiellenent égale sur toute sa périphérie.
7. Dispositif de filature à tuyère selon revendication 5, caractérisé par le fait que la distance comprise entre les surfaces cylindriques de la paire de cylindres d'extraction (5) et le bord d'embouchure (18.6) du tuyau pneumatique de guidage (4) change sur sa périphérie.
8. Dispositif de filature à tuyère selon revendication 7, caractérisé par le fait que la distance comprise entre les surfaces cylindriques de la paire de cylindres d'extraction (5) et le bord d'embouchure (18.6) du tuyau pneumatique de guidage (4), dans la zone où l'extrémité extérieure du tuyau de guidage (4) s'approche plus du premier cylindre (5.1) de la paire de cylindres d'extraction (5) est plus petite que dans la zone d'un deuxième cylindre (5.2) de la paire de cylindres d'extraction (5), située plus loin de cette extrémité.
EP83110769A 1982-10-29 1983-10-27 Dispositif de filature à tuyère Expired EP0110150B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH631182 1982-10-29
CH6311/82 1982-10-29

Publications (2)

Publication Number Publication Date
EP0110150A1 EP0110150A1 (fr) 1984-06-13
EP0110150B1 true EP0110150B1 (fr) 1986-10-15

Family

ID=4307542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110769A Expired EP0110150B1 (fr) 1982-10-29 1983-10-27 Dispositif de filature à tuyère

Country Status (5)

Country Link
US (1) US4593521A (fr)
EP (1) EP0110150B1 (fr)
JP (1) JPS5988932A (fr)
DE (1) DE3366975D1 (fr)
IN (1) IN161964B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN168013B (fr) * 1985-10-31 1991-01-19 Rieter Ag Maschf
JPS62117830A (ja) * 1985-11-15 1987-05-29 Murata Mach Ltd 紡績糸の製造装置
DE3541219A1 (de) * 1985-11-21 1987-05-27 Schubert & Salzer Maschinen Verfahren und vorrichtung zum verspinnen von fasern
US4763822A (en) * 1985-12-23 1988-08-16 Fibron Machine Corporation Paper tail nip threader
DE3604819A1 (de) * 1986-02-15 1987-08-20 Bayer Ag Foerderung von filamentverbaenden ueber weite foerderstrecken
DE3638110C2 (de) * 1986-11-07 1995-06-14 Fritz Stahlecker Vorrichtung zum pneumatischen Falschdrallspinnen
EP0413815A1 (fr) * 1987-06-19 1991-02-27 Uzbexkoe Proizvodstvennoe Obiedinenie Textilnogo Mashinostroenia Dispositif pour realiser un produit de fil auto-torsade
CH692623A5 (de) * 1997-10-03 2002-08-30 Rieter Ag Maschf Spinnstrecktexturier- oder Strecktexturiermaschine.
DE19813515A1 (de) * 1998-03-26 1999-10-07 Zinser Textilmaschinen Gmbh Vorrichtung zum Bewegen eines Fadens zu einer durch eine Friktionswalze angetriebenen Spulhülse
EP3397578A1 (fr) * 2015-12-29 2018-11-07 Arcelormittal Buse à air pour guider une bande d'acier à la sortie d'un dispositif pour cisailler une tôle d'acier et fichier de conception assistée par ordinateur
EP4015682A1 (fr) * 2020-12-18 2022-06-22 Saurer Intelligent Technology AG Poste de travail d'un métier à filer à jet d'air ainsi que élément de guidage de filetage

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094262A (en) * 1960-11-25 1963-06-18 Du Pont Improved yarn handling sucker gun
US3363041A (en) * 1964-06-09 1968-01-09 Uniroyal Inc Method of jet crimping for texturing thermoplastic yarn
GB1200669A (en) * 1966-12-29 1970-07-29 Mitsubishi Rayon Co High speed spinning method and apparatus for manufacturing jet bundle yarn
US3457610A (en) * 1967-12-13 1969-07-29 Monsanto Co Treatment of filaments to develop latent bulkiness therein
US3710460A (en) * 1971-03-17 1973-01-16 Du Pont Yarn treating jet having a guide fastened to its outlet end
GB1461572A (en) * 1973-03-09 1977-01-13 Masson Scott Thrissell Eng Ltd Web guide sysstems
GB1519587A (en) * 1974-07-31 1978-08-02 Heathcoat & Co Ltd Bulked yarn
DE2722319B2 (de) * 1977-01-10 1981-01-15 Toyo Boseki K.K., Osaka (Japan) Vorrichtung zum pneumatischen Falschdrallspinnen
US4173861A (en) * 1977-11-11 1979-11-13 Wwg Industries, Inc. Method and apparatus for controlling twist in yarn
FR2466527A1 (fr) * 1979-09-28 1981-04-10 Alsacienne Constr Meca Dispositif automatique d'introduction d'un voile de fibres textiles dans un coiler
JPS5860029A (ja) * 1981-10-07 1983-04-09 Toyoda Autom Loom Works Ltd 仮撚空気ノズル
US4457130A (en) * 1981-10-13 1984-07-03 Murata Kikai Kabushiki Kaisha Air spinning nozzle unit

Also Published As

Publication number Publication date
JPS6242052B2 (fr) 1987-09-07
JPS5988932A (ja) 1984-05-23
IN161964B (fr) 1988-03-05
DE3366975D1 (en) 1986-11-20
US4593521A (en) 1986-06-10
EP0110150A1 (fr) 1984-06-13

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