EP2944713B1 - Poste de filage pour une machine de filage à jet d'air et utilisation de celle-ci - Google Patents

Poste de filage pour une machine de filage à jet d'air et utilisation de celle-ci Download PDF

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Publication number
EP2944713B1
EP2944713B1 EP15167155.9A EP15167155A EP2944713B1 EP 2944713 B1 EP2944713 B1 EP 2944713B1 EP 15167155 A EP15167155 A EP 15167155A EP 2944713 B1 EP2944713 B1 EP 2944713B1
Authority
EP
European Patent Office
Prior art keywords
additive
spinning
channel
duct
yarn
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.)
Not-in-force
Application number
EP15167155.9A
Other languages
German (de)
English (en)
Other versions
EP2944713A1 (fr
Inventor
Andreas Fischer
Jörg HEHL
Gernot SCHÄFFLER
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
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Publication date
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Publication of EP2944713A1 publication Critical patent/EP2944713A1/fr
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Publication of EP2944713B1 publication Critical patent/EP2944713B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/30—Moistening, sizing, oiling, waxing, colouring, or drying yarns or the like as incidental measures during spinning or twisting
    • D01H13/306—Moistening, sizing, oiling, waxing, colouring, or drying yarns or the like as incidental measures during spinning or twisting by applying fluids, e.g. steam or oiling liquids
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/34—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using air-jet streams

Definitions

  • the present invention relates to a spinning station of an air spinning machine with a spinneret, which serves to produce a yarn from a fiber composite supplied to the spinneret, wherein the spinneret has an inlet for the fiber structure, an internal swirl chamber, a projecting into the swirl chamber and a discharge channel for the yarn Yarn-forming element and an outlet for the yarn produced in the interior of the spinneret.
  • a method for operating an air spinning machine with at least one spinning station wherein the spinning station has at least one spinneret, wherein the spinneret is supplied during operation of the spinning station via an inlet a fiber strand, and wherein the fiber structure in the region of a in a vortex chamber of Spinning nozzle protruding Garn Strukturselements receives a rotation, so that from the fiber strand, a yarn is formed, which leaves the spinneret via a discharge channel of the Garnsentelements and finally via an outlet.
  • Air-jet spinning machines with corresponding spinning stations are known in the art and serve to produce a yarn from an elongate fiber structure.
  • the outer fibers of the fiber composite are wound around the inner core fibers in the area of a fiber inlet opening of the yarn formation element with the aid of a vortex air flow generated by the air nozzles within the vortex chamber and finally form the binder fibers which determine the desired strength of the yarn.
  • B. can be wound on a sleeve.
  • the term yarn is thus understood to mean a fiber structure in which at least some of the fibers are around an inner fiber Core are twisted.
  • a yarn is included in the traditional sense, which can be processed into a fabric, for example with the aid of a weaving machine.
  • the invention also relates to air spinning machines, with the help of so-called roving (other name: Lunte) can be produced.
  • roving other name: Lunte
  • This type of yarn is characterized by the fact that, despite a certain strength, which is sufficient to transport the yarn to a subsequent textile machine, it is still delayable.
  • the roving can thus with the help of a defaulting device, z.
  • a roving processing textile machine such as a ring spinning machine, are warped before it is finally spun.
  • man-made fibers for example polyesters, or blends of natural and man-made fibers
  • deposits are formed on the surface of the yarn-forming element.
  • man-made fibers involves a so-called preparation of the continuous fibers during the manufacturing process.
  • a spin finish usually oils with various additives, applied to the continuous fibers, which allows a treatment, such as stretching the continuous fibers at high speeds.
  • Some of these preparation agents remain attached to the man-made fibers in the further treatment and lead to impurities in the air-spinning machine.
  • the fibers supplied to the air-spinning machine in the form of a fiber structure are usually supplied to the spinneret through a pair of delivery rollers.
  • the delivery roller pair may correspond to an output roller pair of a drafting system. Used drafting systems serve to refine the submitted fiber structure before entering the spinneret.
  • a fiber guide element is usually arranged, via which the fiber structure is guided into the spinneret and finally into the area of the yarn-forming element.
  • the EP 2 450 478 discloses a device which allows to perform an automatic cleaning without stopping the machine.
  • an additive is added to the compressed air used for the formation of the fluidized air flow within the spinneret.
  • the additive is guided by the compressed air to the Garn Strukturselement and causes a cleaning of the surface of Garn Struktursiatas.
  • Another embodiment of a cleaning of the Garn Struktursiatas discloses the JP-2008-095-208 , An additive is also supplied to the compressed air used for the turbulence in the spinneret and passed with this compressed air in the spinneret and thus to the Garn Strukturselement.
  • the dosage and addition of the additive is separately provided for each spinning station in the disclosed embodiment.
  • a disadvantage of the disclosed cleaning systems is that the dosage of the additive depends on the compressed air supply of the air nozzles. A dosage independent thereof is thus eliminated.
  • Object of the present invention is therefore to propose a solution that allows a particularly consistent and precisely regulated supply of the spinneret with additive.
  • the spinning station is characterized in that it is associated with an additive supply, which is designed to supply the spinneret with an additive.
  • the additive supply comprises at least one additive supply line, which communicates fluidically with an additive channel of the yarn formation element.
  • the additive channel opens into the swirl chamber of the spinneret or the discharge channel of Garn Strukturselements, so that a via the additive supply line in the additive channel introduced additive can be introduced into the extraction duct and / or the vortex chamber.
  • the additive can now be introduced independently of the compressed air supply of the air nozzles of the swirl chamber, so that a special precisely metered additive supply is made possible.
  • the additive channel of the Garn realiseselements ends in the region of the take-off channel, d. h., He has an additive outlet opening, which is located in the region of the inner wall of the outlet channel.
  • the imaginary extension of a central axis of the additive channel in this case preferably intersects with the center axis of the exhaust duct.
  • the additive channel in the region of a tip or a fiber inlet opening of the Garn may be formed as a bore can.
  • liquid or even solid substances, or mixtures thereof can be used as additives, water or an aqueous solution being preferred.
  • the additive supply in particular the additive supply line, has a metering device for controlling the volume flow and / or the mass flow of the additive discharged via the additive channel.
  • the metering device is, for example, a valve or a metering pump, which can be controlled manually or with the aid of a controller in order to be able to change the quantity of the additive passing through the valve or the metering pump, the valve, or the metering pump, for example, into the Additive supply line is integrated.
  • the additive supply could also be controlled in quantitative terms by the adaptation of the prevailing in the vortex chamber vacuum, the negative pressure is generated by an associated with the vortex chamber vacuum source.
  • the additive channel extends at least in sections within the yarn formation element.
  • the additive channel may consist of several communicating sections.
  • the yarn formation element it would be conceivable for the yarn formation element to have a main body and a tip fixed to the main body and having said fiber inlet opening.
  • the withdrawal channel could be composed of a bore arranged within the tip and a further segment extending inside the basic body (whereby this segment could also be formed by a bore).
  • a transition section of the additive channel surrounding the outlet channel preferably a ring-shaped transition section, into which both the channel section of the tip and the channel section of the base body terminate may be located.
  • the additive channel with the withdrawal channel at least partially encloses an angle whose amount is between 3 ° and 12 °, preferably between 5 ° and 10 °.
  • the additive channel is also preferably directed against the transport direction of the yarn within the discharge channel, so that the additive is discharged (obliquely) against the said transport direction in the discharge channel and in this case comes into contact with the fibers of the supplied fiber assembly or yarn.
  • the additive channel and the withdrawal channel are at least partially in a common plane.
  • the additive channel opens into the extraction channel in the region of a fiber inlet opening of the yarn formation element.
  • the additive also reaches into the region of the outer surface of the Garnsentelements and thus the cleaning of this surface are used (the transport of the additive from the discharge channel and thus from the interior of the Garn avoirselements in the region of its outer surface in this case by the in the Vortex chamber prevailing negative pressure, which arises during operation of the spinneret by an air outlet from the vortex chamber).
  • the additive channel should open into the withdrawal channel in such a way that the resulting connection region of additive channel and withdrawal channel is less than 10 mm, preferably less than 5 mm, away from the fiber entry opening of the yarn formation element.
  • the additive channel extends at least partially within a wall of the yarn formation element surrounding the withdrawal channel and opens into an exit opening which is located in the region of an outer surface of the yarn formation element.
  • the additive channel does not go into the withdrawal channel.
  • the said outlet opening is preferably located in the outer region of the fiber inlet opening having the front region of the Garnsentelements or its tip.
  • the additive is applied directly to the area of the outer surface of the yarn-forming element, which in the yarn production comes into contact with the fiber ends wrapped around the inner core of the fiber-bundle in the region of the fiber inlet opening of the yarn-forming element.
  • the additive thus also comes into contact with the fibers and the outer surface of the yarn-forming element in this case, so that, depending on the amount of additive added, the yarn quality is improved and / or the yarn-forming element is cleaned.
  • the additive channel is additionally in fluid communication with a compressed air line of the spinning station, so that via the compressed air line introduced compressed air can be introduced via the additive channel in the discharge channel and / or the vortex chamber.
  • the introduction of compressed air is particularly advantageous during a piecing operation at the corresponding spinning station, in which a yarn end is introduced into the extraction channel via the outlet of the spinneret in the opposite direction to the transport direction prevailing in the spinning operation.
  • the introduced, preferably coming from a bobbin yarn end is detected during the piecing of the said air flow and transported through the discharge channel.
  • the yarn end After exiting the exhaust duct via the fiber entrance opening, the yarn end may finally be conveyed outwardly through the inlet of the spinneret (this being also assisted by said air flow) and connected to an end portion of a fiber composite.
  • the previously deactivated air nozzles of the spinneret are again supplied with compressed air and the compressed air supply via the additive channel suppressed, so that the connected to the fiber structure Garnende and thus the fiber structure again comes in the transport direction in the vortex chamber and the spinning operation can be resumed.
  • the compressed-air line and / or the additive supply line is assigned at least one valve which can assume two different valve positions, wherein the additive channel is in fluid communication with either the compressed-air line or the additive-supply line depending on the valve position.
  • the first position may be selected in the course of the piecing operation described, the spinneret can be supplied with additive in the second position, this being advantageous during the spinning operation following the piecing process.
  • the valve could be manually operated, for example.
  • valve is connected to a controller is, which is designed to hold the valve during a spinning operation of the spinning station at least temporarily in a first valve position, in which the additive channel communicates fluidically with the additive supply line.
  • controller should be designed to hold the valve during a piecing operation of the spinning station at least temporarily in a second valve position, in which the additive channel communicates fluidly with the compressed air line.
  • the valve position is automatically selected by the controller in this case, so that additive is supplied to the spinneret only when no piecing is performed and vice versa.
  • the method according to the invention is characterized in that the spinneret of the corresponding air-spinning machine is at least temporarily supplied with an additive with the aid of an additive supply during operation of the spinning station, the added additive being discharged via an additive channel of the yarn-forming element into the exhaust duct and / or the swirl chamber.
  • the spinneret of the corresponding air-spinning machine is at least temporarily supplied with an additive with the aid of an additive supply during operation of the spinning station, the added additive being discharged via an additive channel of the yarn-forming element into the exhaust duct and / or the swirl chamber.
  • the additive according to the present invention is introduced into the spinneret independently of the compressed air introduced during the spinning operation via the air nozzles of the respective spinneret, so that a metering of the additive independent of the air pressure of said compressed air is possible.
  • additive is dispensed via the additive channel via the additive channel during a spinning operation of the spinning station at least temporarily, and if during a piecing operation of the spinning station at least temporarily compressed air is discharged via the additive channel.
  • the additive channel is in this case used either for the additive delivery or a compressed air delivery, wherein the compressed air delivery allows a return of a yarn end from the outlet of the spinneret in a region upstream of the inlet thereof.
  • the compressed air delivery allows a return of a yarn end from the outlet of the spinneret in a region upstream of the inlet thereof.
  • the additive channel is in fluid communication with an additive supply line and a compressed air line.
  • the additive supply line and / or the compressed air line should be assigned at least one valve, wherein the valve is held by means of a control during a spinning operation of the spinneret at least temporarily in a first valve position in which the additive channel is fluidically connected to the additive supply line.
  • the valve should be held by means of the controller during a piecing operation of the spinneret at least temporarily in a second valve position, in which the additive channel is in fluid communication with a compressed air line. The position of the corresponding valve is thus regulated by the controller, so that an automatic operation of the valve is possible.
  • the metering device may be, for example, a valve or a metering pump, wherein a valve is additionally movable between a plurality of positions.
  • a valve is additionally movable between a plurality of positions.
  • the volume flow of the additive delivered at least temporarily amounts to between 0.001 ml / min and 7.0 ml / min, preferably between 0.01 ml / min and 5.0 ml / min, particularly preferably between 0.05 and 3.0 ml / min, and / or when the mass flow of the added additive at least temporarily an amount between 0.001 g / min and 7.0 g / min, preferably between 0.01 g / min and 5.0 g / min, more preferably between 0.05 g / min and 3.0 g / min.
  • a metering device which effects the metering of the additive should therefore permit a regulation of the volume or mass flow over the stated span widths in order to be able to operate the individual spinnerets both in normal operation and in cleaning operation.
  • the volume flow (or mass flow) of the added additive during normal operation of the air-spinning machine an amount between 0.001 ml / min (or g / min) and 1.5 ml / min (or g / min ), preferably between 0.01 ml / min (or g / min) and 1.0 ml / min (or g / min), and when the volume flow (or mass flow) of the added additive during a cleaning operation of the air-jet spinning machine an amount between 2.0 ml / min (or g / min) and 7.0 ml / min (or g / min), preferably between 3.0 ml / min (or g / min) and 7.0 ml / min (or g / min).
  • the exact value can be selected depending on the properties of the fiber composite and / or its feed rate into the spinning station and / or the withdrawal speed of the yarn from the spinning station and can therefore vary depending on the application. Likewise, the value can be selected as a function of the duration of the cleaning operation or the duration of the normal operation between two cleaning sections.
  • FIG. 1 shows a section of a spinning station of an air-spinning machine according to the invention (wherein the air-spinning machine can of course have a plurality of, preferably adjacent to each other, spinning stations).
  • the air-spinning machine may comprise a drafting unit 20 with a plurality of drafting rollers 19 (which may be partially looped around a strap 28), which is supplied with a fiber structure 3, for example in the form of a relined conveyor belt.
  • the spinning station shown comprises a in FIG.
  • the air-spinning machine a pair of delivery rollers downstream of the spinneret 1 and two take-off rollers 26 and a winding device 27 connected downstream of the take-off roller pair for winding of the spinning unit leaving yarn 2 on a sleeve.
  • the spinning station according to the invention need not necessarily have a drafting system 20. Also, the pair of take-off rollers is not absolutely necessary.
  • the spinning station shown generally works by an air spinning process.
  • the fiber structure 3 is guided into the swirl chamber 5 of the spinneret 1 via a fiber guide element 18 provided with an inlet opening forming said inlet 4.
  • a rotation ie at least part of the free fiber ends of the fiber composite 3 is detected by a fluidized air flow, which is generated by correspondingly arranged in a swirl chamber surrounding the vortex chamber 5 air nozzles 22 (wherein the air nozzles 22 communicate via an air supply channel 23 which in turn is connected to a compressed air line 25, which is supplied with compressed air via a compressed air supply 29, see also FIG. 6 and the associated description).
  • a part of the fibers is in this case pulled out of the fiber structure 3 at least a little bit and wound around the front region of a projecting into the swirl chamber 5 Garnsentelements 6.
  • the introduced via the air nozzles 22 compressed air leaves the spinneret 1 finally via the outlet channel 24 and a possibly existing air outlet 21, if necessary can be connected to a vacuum source.
  • the yarn 2 produced can basically be any desired fiber structure 3, which characterized in that an outer part of the fibers (so-called Umwindemaschinen) is wrapped around an inner, preferably untwisted or if necessary also rotated part of the fibers in order to give the yarn 2, the desired strength.
  • an air-spinning machine with the aid of which so-called roving can be produced.
  • Roving is a yarn 2 with a relatively small proportion of wraparound fibers, or a yarn 2 in which the wraparound fibers are wound relatively loosely around the inner core, so that the yarn 2 remains deformable. This is crucial if the produced yarn 2 on a subsequent textile machine (for example, a ring spinning machine) should be distorted again with the help of a drafting system or must, in order to be further processed accordingly.
  • the individual air nozzles 22 are arranged in this case rotationally symmetrical to one another and open tangentially into the swirl chamber 5.
  • additive supply 8 associated with one or more additive providing the additive storage 9 (for example in the form of an additive and a gaseous pressure medium having pressure vessel) and one or more, preferably at least partially flexible, additive supply lines 14, via which the respective additive memory 9 with a Additive channel 10 is fluidically related (with regard to possible additives, reference is made to the previous description).
  • additive storage 9 for example in the form of an additive and a gaseous pressure medium having pressure vessel
  • additive supply lines 14 via which the respective additive memory 9 with a Additive channel 10 is fluidically related (with regard to possible additives, reference is made to the previous description).
  • the said additive channel 10 at least partially extends within the Garn avoirselements 6, wherein the Additive channel 10 may be present as a bore, for example.
  • the additive channel 10 starting from a port 30 (which in turn is in fluid communication with the additive supply line 14) in the discharge channel 24 open, wherein the transition from the additive channel 10 into the discharge channel 24 preferably in the region of the fiber inlet opening 32 of the Garn Strukturselements. 6 is arranged.
  • the (sorry in FIG. 3 indicated) angle ⁇ between the discharge channel 24 and the additive channel 10 are in the order mentioned in the general description.
  • An additive introduced via the additive channel 10 comes in contact with the fibers of the yarn 2 in this area and in this case brings about a qualitative improvement in the yarn properties (strength, hairiness, etc.). If the amount of additive during a cleaning operation of the spinneret 1 is increased accordingly, the additive also passes through the prevailing in the swirl chamber 5 negative pressure in the region of the outer surface 13 of the Garnsentelements 6 and causes a cleaning of the same.
  • the outlet opening 15 of the additive channel 10 is arranged in the region of the aforementioned outer surface 13 of the yarn formation element 6, wherein the additive channel 10 is preferably likewise arranged in a wall 12 of the yarn formation element 6 surrounding the extraction channel 24 (see FIG FIG. 4 ). Also in this case, the additive comes into contact with the fibers entering the withdrawal channel 24 and moreover reliably in the area of the outer surface 13 of the yarn formation element 6.
  • FIG. 5 Another embodiment of a possible Garn Strukturselements 6 is in FIG. 5 shown.
  • the Garn Strukturselement 6 shown there is in contrast to the Figures 3 and 4 formed in several parts.
  • the Garnticianselement 6 comprises a base body 33 and a hereby (for example releasably) connected tip 34.
  • the Additive channel 10 multiple sections, wherein in the transition region between the base body 33 and tip 34, an annular channel 35 may be present to ensure that the said portions of the additive channel 10 are independent of a relative rotation of the body 33 and tip 34 always in fluid communication ,
  • FIG. 6 a schematic diagram of a section of an air-spinning machine according to the present invention.
  • a first (in FIG. 6 : Lower) compressed air line 25 is present, on the one hand with a compressed air supply 29 of the spinning machine and on the other hand, as in FIG. 2 shown, with the air nozzles 22 of the spinneret 1 is in communication.
  • the individual air nozzles 22 can be acted upon by compressed air via compressed air line 25.
  • an additive reservoir 9 is present, the fluidically via an additive supply line 14 with in the FIGS. 3 to 5 shown, wherein the additive supply line 14 may include a metering device 17 in order to regulate the volume and / or mass flow of the additive supplied (the metering device 17 may be for this purpose with the controller 16 in conjunction to an automatic To allow regulation).
  • the additive supply line 14 may include a metering device 17 in order to regulate the volume and / or mass flow of the additive supplied (the metering device 17 may be for this purpose with the controller 16 in conjunction to an automatic To allow regulation).
  • FIG. 6 the compressed air supply 29 upwards leaving
  • compressed air line 25 may be present, the flow also with the in the FIGS. 3 to 5 can be connected shown connection 30.
  • the additive channel 10 can also be acted upon in this case with compressed air in order to carry out the piecing process described above.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (16)

  1. Poste de filage pour un métier à filer à jet d'air
    - avec une filière de filage (1) qui sert à la fabrication d'un fil (2) à partir d'un ensemble de fibres (3) délivré à la filière de filage (1),
    - dans lequel la filière de filage (1) comporte une admission (4) pour l'ensemble de fibres (3),
    - une chambre de turbulence intérieure (5),
    - un élément de formation de fil (6) faisant saillie dans la chambre de turbulence (5) et comportant un canal d'extraction (24) pour le fil (2) ainsi que
    - une sortie (7) pour le fil (2) produit à l'intérieur de la filière de filage (1), et
    - dans lequel une alimentation en additif (8) est attribuée à la filière de filage (1), laquelle se présente sous une forme pour alimenter la filière de filage (1) avec un additif,
    caractérisé en ce que
    - l'élément de formation de fil (6) comporte au moine un canal d'additif (10), lequel débouche dans la chambre de turbulence (5) ou le canal d'extraction (24),
    - dans lequel l'alimentation en additif (8) comprend au moins une conduite d'alimentation (14) en additif, qui est en relation en technique d'écoulement avec le canal d'additif (10) de sorte qu'un additif introduit dans le canal d'additif (10) via la conduite d'alimentation (14) en additif puisse être introduit dans le canal d'extraction (24) et/ou la chambre de turbulence (5).
  2. Poste de filage selon la revendication précédente, caractérisé en ce que le canal d'additif (10) s'étend au moins en certains de ses segments au sein de l'élément de formation de fil (6).
  3. Poste de filage selon la revendication 1 ou 2, caractérisé en ce que le canal d'additif (10) forme avec le canal d'extraction (24) au moins en certains segments un angle (a), dont la valeur se situe entre 3° et 12°, de préférence entre 5° et 10°.
  4. Poste de filage selon l'une des revendications précédentes, caractérisé en ce que le canal d'additif (10) débouche dans le canal d'extraction (24) dans la zone d'un orifice d'entrée (32) de fibres de l'élément de formation de fil (6).
  5. Poste de filage selon l'une des revendications 1 à 3, caractérisé en ce que le canal d'additif (10) s'étend au moins partiellement au sein d'une paroi (12) de l'élément de formation de fil (6) entourant le canal d'extraction (24) et débouche dans un orifice de sortie (15) qui se situe dans la zone d'une surface extérieure (13) de l'élément de formation de fil (6).
  6. Poste de filage selon l'une des revendications précédentes, caractérisé en ce que le canal d'additif (10) est en outre en relation fluidique avec une conduite d'air comprimé (25) du poste de filage, de sorte que l'air comprimé introduit via la conduite d'air comprimé (25) puisse être introduit via le canal d'additif (10) dans le canal d'extraction (24) et/ou la chambre de turbulence (5).
  7. Poste de filage selon la revendication précédente, caractérisé en ce qu'une soupape (11) au moins est attribuée à la conduite d'air comprimé (25) et/ou la conduite d'alimentation (14) en additif, laquelle peut adopter deux positions de soupape différentes, dans lequel le canal d'additif (10), en fonction de la position de la soupape, est en relation fluidique soit avec la conduite d'air comprimé (25), soit avec la conduite d'alimentation (14) en additif.
  8. Poste de filage selon la revendication précédente, caractérisé en ce que la soupape (11) est en relation avec une commande (16) qui se présente sous une forme pour maintenir la soupape (11) au moins temporairement dans une première position de soupape pendant le fonctionnement de filage du poste de filage, dans laquelle le canal d'additif (10) est en relation fluidique avec la conduite d'alimentation (14) en additif, et pour maintenir la soupape (11), pendant un fonctionnement de rattachement par filage du poste de filage, au moins temporairement dans une seconde position de soupape dans laquelle le canal d'additif (10) est en relation fluidique avec la conduite d'air comprimé (25).
  9. Métier à filer à jet d'air, caractérisé en ce qu' il comporte au moins un poste de filage selon l'une des revendications précédentes.
  10. Procédé pour exploiter un métier à filer à jet d'air avec au moins un poste de filage,
    - dans lequel le poste de filage comporte au moins une filière de filage (1),
    - dans lequel un ensemble de fibres (3) est délivré à la filière de filage (1) via une admission (4) pendant le fonctionnement du poste de filage,
    - dans lequel l'ensemble de fibres (3) obtient une rotation dans la zone d'un élément de formation de fil (6) faisant saillie dans une chambre de turbulence (5) de la filière de filage (1), de sorte qu'un fil (2) soit formé à partir de l'ensemble de fibres (3), qui quitte la filière de filage (1) via un canal d'extraction (24) de l'élément de formation de fil (6) et, finalement, via une sortie (7), et
    - dans lequel un additif est délivré au moins temporairement à la filière de filage (1) à l'aide d'une alimentation en additif (8) pendant le fonctionnement du poste de filage,
    - caractérisé en ce que
    - l'additif introduit est délivré dans le canal d'additif (24) et/ou la chambre de turbulence (5) via un canal d'additif (10) de l'élément de formation de fil (6).
  11. Procédé selon la revendication précédente, caractérisé en ce que pendant un fonctionnement de filage du poste de filage, de l'additif est délivré au moins temporairement via le canal d'additif (10), et que pendant un fonctionnement de rattachement par filage du poste de filage, de l'air comprimé est délivré au moins partiellement via le canal d'additif (10).
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce que le canal d'additif (10) est en relation fluidique avec une conduite d'alimentation (14) en additif et une conduite d'air comprimé (25), qu'une soupape (11) au moins est attribuée à la conduite d'alimentation (14) en additif et/ou la conduite d'air comprimé (25), que la soupape (11), pendant un fonctionnement de filage de la filière de filage (1), est maintenue à l'aide d'une commande (16) au moins temporairement dans une première position de soupape, dans laquelle le canal d'additif (10) est en relation fluidique avec la conduite d'alimentation (14) en additif, et que la soupape (11), pendant un fonctionnement de rattachement par filage de la filière de filage (1), est maintenue au moins temporairement dans une seconde position de soupape, dans laquelle le canal d'additif (10) est en relation fluidique avec une conduite d'air comprimé (25).
  13. Procédé selon l'une des revendications 10 à 12, caractérisé en ce que le débit volumique et/ou massique de l'additif délivré via le canal d'additif (10) est réglé à l'aide d'un dispositif de dosage (17).
  14. Procédé selon l'une des revendications 10 à 13, caractérisé en ce que le débit volumique de l'additif délivré présente au moins temporairement une valeur comprise entre 0,001 ml/min et 7,0 ml/min, de préférence, entre 0,01 ml/min et 5,0 ml/min, de manière particulièrement préférée, entre 0,05 et 3,0 ml/min, et/ou que le débit massique de l'additif introduit présente au moins temporairement une valeur comprise entre 0,001 g/min et 7,0 g/min, de préférence, entre 0,01 g/min et 5,0 g/min, de manière particulièrement préférée, entre 0,05 g/min et 3,0 g/min.
  15. Procédé selon l'une des revendications 10 à 14, caractérisé en ce que le débit volumique de l'additif délivré présente pendant un fonctionnement de filage du poste de filage une valeur comprise entre 0,001 ml/min et 1,5 ml/min, de préférence, entre 0,01 ml/min et 1,0 ml/min, et que le débit volumique de l'additif introduit pendant un fonctionnement de nettoyage du poste de filage présente une valeur comprise entre 2,0 ml/min et 7,0 ml/min, de préférence, entre 3,0 ml/min et 7,0 ml/min.
  16. Procédé selon l'une des revendications 10 à 15, caractérisé en ce que le débit massique de l'additif délivré présente pendant un fonctionnement de filage du poste de filage une valeur comprise entre 0,001 g/min et 1,5 g/min, de préférence, entre 0,01 g/min et 1,0 g/min, et que le débit massique de l'additif introduit pendant un fonctionnement de nettoyage du poste de filage présente une valeur comprise entre 2,0 g/min et 7,0 g/min, de préférence, entre 3,0 g/min et 7,0 g/min.
EP15167155.9A 2014-05-13 2015-05-11 Poste de filage pour une machine de filage à jet d'air et utilisation de celle-ci Not-in-force EP2944713B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00716/14A CH709615A1 (de) 2014-05-13 2014-05-13 Spinnstelle einer Luftspinnmaschine sowie Betrieb einer solchen.

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EP2944713B1 true EP2944713B1 (fr) 2018-07-18

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US (1) US9670600B2 (fr)
EP (1) EP2944713B1 (fr)
JP (1) JP6566550B2 (fr)
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CH (1) CH709615A1 (fr)

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CH709953A1 (de) * 2014-07-30 2016-02-15 Rieter Ag Maschf Verfahren zum Betrieb einer Luftspinnmaschine.
BE1023666B1 (nl) * 2015-11-10 2017-06-09 Gilbos N.V. Verbeterde jet en werkwijze
DE102015120437A1 (de) 2015-11-25 2017-06-01 Maschinenfabrik Rieter Ag Luftspinnmaschine sowie Verfahren zum Betrieb derselben
CN105951225B (zh) * 2016-06-22 2018-01-16 陕西宝成航空仪表有限责任公司 用于全自动智能纺纱机喷嘴的自动清洁系统
CH712663A1 (de) * 2016-07-14 2018-01-15 Rieter Ag Maschf Verfahren zum Verarbeiten eines strangförmigen Faserverbands sowie Vorspinnmaschine.
JP2018178298A (ja) * 2017-04-11 2018-11-15 村田機械株式会社 紡績機
CN110904544A (zh) * 2019-12-20 2020-03-24 江西莱富纺织有限公司 一种纺纱断线率低的气流纺纱装置
DE102020108257A1 (de) * 2020-03-25 2021-09-30 Saurer Spinning Solutions Gmbh & Co. Kg Vorrichtung zur Faservereinzelung und Spinneinrichtung umfassend eine solche Vorrichtung

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EP2944713A1 (fr) 2015-11-18
US20150329994A1 (en) 2015-11-19
JP2015218427A (ja) 2015-12-07
CH709615A1 (de) 2015-11-13
US9670600B2 (en) 2017-06-06
CN105088433A (zh) 2015-11-25
CN105088433B (zh) 2019-01-04
JP6566550B2 (ja) 2019-08-28

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