EP2955255B1 - Métier à filer à jet d'air et procede de fonctionnement d'un tel métier à filer à jet d'air - Google Patents

Métier à filer à jet d'air et procede de fonctionnement d'un tel métier à filer à jet d'air Download PDF

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Publication number
EP2955255B1
EP2955255B1 EP15170044.0A EP15170044A EP2955255B1 EP 2955255 B1 EP2955255 B1 EP 2955255B1 EP 15170044 A EP15170044 A EP 15170044A EP 2955255 B1 EP2955255 B1 EP 2955255B1
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EP
European Patent Office
Prior art keywords
yarn
spinning
during
cleaning process
additive
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
EP15170044.0A
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German (de)
English (en)
Other versions
EP2955255A3 (fr
EP2955255A2 (fr
Inventor
Gernot SCHÄFFLER
Jörg HEHL
Andreas Fischer
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
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Maschinenfabrik Rieter AG
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Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP2955255A2 publication Critical patent/EP2955255A2/fr
Publication of EP2955255A3 publication Critical patent/EP2955255A3/fr
Application granted granted Critical
Publication of EP2955255B1 publication Critical patent/EP2955255B1/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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/22—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to presence of irregularities in running material
    • 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
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices

Definitions

  • the present invention relates to a method for operating an air-jet spinning machine, wherein the air-spinning machine has at least one spinning station with a spinneret for producing a yarn, wherein the spinneret during operation of the spinning station, a fiber strand is fed via an inlet and in a predetermined transport direction, wherein the fiber strand within a vortex chamber of the spinneret with the aid of a vortex air flow receives a rotation, so that from the fiber strand a yarn is formed, which finally leaves the spinneret via an outlet, wherein the yarn leaving the outlet is monitored by means of at least one sensor with respect to defined yarn defects and the production of the yarn is interrupted upon detection of a corresponding yarn defect.
  • an air-spinning machine which has at least one spinning station with a spinneret for producing a yarn from a fiber strand fed to the spinneret, wherein the spinneret has an inlet for the fiber structure, an internal swirl chamber, a yarn forming element projecting into the swirl chamber and an outlet for the yarn which is produced in the interior of the vortex chamber by means of a vortex air flow, and wherein the spinning station comprises at least one sensor by means of which the yarn leaving the outlet is monitored during operation of the spinning station with respect to defined yarn defects, and wherein the spinning station comprises a control unit comprising the control unit Production of the yarn in a detection of a corresponding Garnclude interrupts.
  • Air-jet spinning machines with corresponding spinning stations are known in the art and serve to produce a yarn from an elongate fiber structure.
  • a corresponding air spinning machine is for example in the EP 2 573 238 A2 described.
  • the outer fibers of the fiber composite are hereby produced by means of a through the air nozzles within the vortex chamber Vortex air flow in the region of an inlet mouth of the yarn formation element wound around the inner core fibers and finally form the decisive for the desired strength of the yarn Umwindefasern. This creates a yarn with a true rotation, which finally dissipated via a vent channel from the vortex chamber and z. B. can be wound on a sleeve.
  • the term yarn generally means a fiber structure in which at least some of the fibers are wound around an inner core.
  • 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.
  • a yarn of manmade fibers for example polyester, or blends of natural and man-made fibers
  • deposits are formed on the surface of the yarn-forming element.
  • the production of 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 air-jet spinning machine supplied in the form of a fiber structure fibers are usually by a Feed roller pair fed to the spinneret.
  • 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.
  • Garn Guesssetti spindles are predominantly used with an internal exhaust duct.
  • compressed air is introduced through the housing wall of the spinneret such that the said rotating vortex air flow results.
  • individual outer fibers are separated from the fiber strand leaving the fiber guiding element and are turned over via the tip of the yarn-forming element. In the further course, these removed fibers rotate on the surface of the yarn-forming element.
  • the EP 2 450 478 discloses a device which allows to perform an automatic cleaning without stopping the machine.
  • the compressed air used for the formation of the vortex air flow within the spinneret during a cleaning process an additive is added.
  • the additive is guided by the compressed air to the Garn Strukturselement and causes a cleaning of the surface of Garn Struktursiatas.
  • a disadvantage of the latter solution is the fact that the provided with the additive during the cleaning process yarn usually does not meet the quality specifications, since the yarn properties are adversely affected by the not insignificant amount of additive and the impurities absorbed.
  • the object of the present invention is to propose a method and a corresponding air spinning machine for carrying out the method, which takes this disadvantage into account.
  • the method for operating an air-spinning machine is initially characterized by the yarn leaving the outlet of the spinneret being monitored for defined yarn defects with the aid of at least one sensor, and the production of the yarn being interrupted upon detection of a corresponding yarn defect.
  • the sensor may include one or more known from the prior art sensors that monitor the yarn, for example, optically or capacitively.
  • the yarn is monitored for its thickness, mass, hairiness or other characteristics characterizing the quality of the yarn, the invention not being limited to the monitoring of certain physical properties of the yarn.
  • the control of the air-spinning machine is designed to monitor the measured values of the sensor system on the basis of predetermined setpoint values and / or corresponding limit values. If the controller determines that the values determined by the sensors deviate from the corresponding specifications, ie. h., That the yarn has a yarn defect, which makes the yarn unusable for further processing, the spinneret is stopped. After stopping, the Garnschreib having yarn section from the rest, already located on a spool, yarn section is separated ("cleaner cut") and the newly formed yarn end connected to the spinneret again supplied fiber structure to resume normal operation of the spinneret can ( so-called "piecing process").
  • said yarn error which may be, for example, a local thick spot or a longer yarn section with excessively increased or decreased length-related mass or thickness
  • said interruption of the yarn production ie stopping the spinneret
  • a cleaning operation is carried out while the spinning station an additive supplied and applied to the fiber structure and / or the yarn produced from the fiber structure and / or on parts of the spinneret.
  • the production of the yarn is thus not immediately interrupted after the detection of the yarn defect, as is customary in the prior art, in order to keep the length of the yarn section produced after the detection of the yarn defect as small as possible (this must after the interruption of the before Garnschreib manufactured yarn section are separated and disposed of). Rather, the yarn production is continued for a certain period of time after detecting the yarn defect.
  • the yarn produced by the spinneret and / or the fiber strand supplied to the spinning station for producing the same is wetted with an additive during the cleaning process.
  • the additive-provided yarn or the corresponding fiber composite is finally cleaned by the mechanical contact between the yarn or fiber structure and the corresponding surface sections of the spinneret.
  • cleaning of the outer surface of the yarn formation element, of the discharge channel and possibly also of the sections of the yarn guide element which come into contact with the fiber structure can thereby be effected, the additive significantly assisting the cleaning.
  • liquid or even solid substances may be used as the additive, water or an aqueous solution (eg a cleaning solution) being preferred.
  • the process of the invention now has the distinct advantage that the additive (which is in the amount added during the cleaning process) in the finished yarn is not desired is applied to a portion of the yarn (or the fiber dressing supplied for its production) containing the spinneret happened after the detected yarn error. Consequently, the yarn section containing the additive and the contaminants can, together with the yarn defect, in the context of the subsequent cleaning cut be separated from the remaining, the qualitative specifications, Garnabites.
  • the finished yarn spool ie leaving the air-spinning machine) is thus not only free from yarn defects but also free from yarn sections leaving the spinneret during the cleaning process and with an excessive amount of additive or, in particular, from the respective surface sections Spinneret detached contaminants is provided.
  • the cleaning process can be performed after each detection of a correspondingly relevant yarn error.
  • the cleaning process according to certain specifications only now and then, d. H. not with every cleaner cut.
  • the sensor system is deactivated during the cleaning process and / or the evaluation of the measured values supplied by the sensor system is interrupted during the said period of time.
  • the reason for this is the fact that the yarn leaving the spinneret during the cleaning process is provided with additive and impurities. If the sensor system continues to supply the yarn quality control to the control unit during this period, or if the control unit evaluates this measured value in the same way as in the normal operation of the air-spinning machine, this would mean that during the cleaning process, yarn faults would always be reported which would always cause a new cleaner cut or would entail a new cleaning process. Since the yarn quality also plays no role during the cleaning process, it can be waived a monitoring of the same in this period.
  • the yarn section containing the yarn defect together with the yarn section produced during the cleaning process after the interruption of the yarn production by means of a Garnabschreibech is removed from the remaining, prepared before the detection of the corresponding yarn error, yarn.
  • This can for example be done with the aid of a Garnabschreibech, which sucks after the interruption of the yarn production (ie after completion of the cleaning process) present yarn end. If now the spool having the remaining yarn section (which also includes the yarn defect and the yarn section produced during the cleaning process) is driven backwards, the yarn is unwound from the spool a little and reaches the yarn discharge unit.
  • the yarn can be severed. This results in a new end portion of the liberated from the yarn thread yarn, which then in the context of a piecing against the transport direction through led the spinneret, brought into contact with the fiber structure and then introduced together with the fiber structure in the transport direction in the spinneret to eventually resume normal operation of the air spinning machine or the corresponding spinneret having spinning station again (the air spinning machine can of course a variety Have spinning stations, each having a spinneret and a sensor and on which each individually corresponding cleaning operations are feasible).
  • the yarn delivery speed of the spinneret during the cleaning process is smaller than the yarn delivery speed which prevails during a normal operation of the spinneret preceding the detection of the yarn defect.
  • the length of the yarn produced during the cleaning process is minimized, so that after the cleaning process less yarn must be removed from the rest of the yarn.
  • the cleaning effect can be improved.
  • the delivery speed during the cleaning process may be abruptly or gradually reduced compared to the prevailing delivery speed during normal operation, wherein the delivery speed during the cleaning process between 50 m / min and 300 m / min could be (the corresponding value during normal operation, however, is preferably over 400 m / min).
  • a yarn is produced whose length-related mass is greater than the length-related mass of the yarn which is produced during a normal operation of the spinneret preceding the detection of the yarn defect.
  • the corresponding yarn also has a greater yarn thickness in this case, so that the yarn surface, which comes into contact with the corresponding surface sections of the spinneret for the purpose of cleaning them, is particularly large. The cleaning effect can thereby be significantly improved.
  • the length-related mass of the yarn produced during the cleaning process has an amount smaller than 30 Nm, preferably smaller than 20 Nm, more preferably smaller than 15 Nm (with 1 Nm per gram per gram 10 meters of yarn).
  • the length-related mass during normal operation however, for example, 50 Nm to 200 Nm.
  • the cleaning process is only carried out if at least a predetermined period of time has elapsed since the last cleaning process or if a predetermined minimum length or minimum quantity of yarn has been produced. Overly frequent cleaning of the spinneret is thereby prevented. It may therefore be advantageous if individual yarn defects are removed by the "cleaner cut" described above and then a piecing process is carried out without a cleaning process being carried out in this connection.
  • the volume flow of the added additive at least temporarily an amount between 0.001 ml / min and 7.0 ml / min, preferably between 0.02 ml / min and 5.0 ml / min, more preferably between 0.05 and 3.0 ml / min., and / or that the mass flow of the added additive at least temporarily amounts to between 0.001 g / min and 7.0 g / min, preferably between 0.02 g / min and 5.0 g / min , more preferably between 0.05 g / min and 3.0 g / min. While higher values during the cleaning process are beneficial (eg at least 2 ml / min and 2g / min, respectively), smaller values are beneficial in normal operation in which the additive merely serves to improve the yarn properties.
  • the air-spinning machine is characterized in that it comprises at least one control unit which is designed to initiate a cleaning process between the detection of the yarn fault described above and the interruption of the yarn production, while at the same time supplying an additive to the spinning station with the aid of an additive supply the fiber structure and / or the yarn produced from the fiber structure and / or is applied to parts of the spinneret.
  • control unit can be designed to operate the air-jet spinning machine according to the individually described method features, which can be implemented individually or in any desired combination.
  • 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 can comprise a drafting system with a plurality of drafting rollers 13, which is supplied with a fiber structure 3, for example in the form of a relined conveyor belt (for reasons of clarity, only one of the drafting rollers 13 shown is provided with a reference numeral).
  • the spinning station shown comprises a spinneret 2 with an internal swirl chamber 5 (see FIG. 2) in which the fiber structure 3 or at least part of the fibers of the fiber composite 3 is provided with a rotation (after passing through an inlet 4 of the spinneret 2) Mode of action of the spinning station will be described in more detail below).
  • the air-spinning machine may include a pair of take-off rollers 24 downstream of the spinneret 2 and a winding device 1 connected downstream of the take-off roller pair 24 for winding up the yarn 6 leaving the spinneret 2 onto a sleeve.
  • the spinning station does not necessarily have a drafting system. Also, the take-off roller pair 24 is not absolutely necessary.
  • the spinning station shown generally works by an air spinning process.
  • the fiber structure 3 is conveyed in a predetermined transport direction T via an inlet opening forming said inlet 4 provided, and in FIG. 2 shown fiber guide element 23 is guided in the swirl chamber 5 of the spinneret 2.
  • a rotation ie at least part of the free fiber ends 10 of the fiber composite 3 (see. FIG. 4 ) is detected by a vortex air flow, which is generated by appropriately arranged in a vortex chamber 5 surrounding vortex chamber wall air nozzles 19 (the air nozzles 19 are preferably supplied via an air supply line 18 with compressed air, which opens into a connected to the air nozzles 19 air supply chamber 17).
  • 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 tip of a projecting into the swirl chamber 5 Garnsentelements 21.
  • the introduced via the air nozzles 19 compressed air leaves the spinneret 2 finally via the discharge duct 20 and any existing air discharge 25, which if necessary with a negative pressure source may be connected.
  • the yarn 6 produced can basically be any fiber structure 3, which is characterized in that an external part of the fibers (so-called capillary fibers) around an inner, preferably untwisted or if necessary also rotated Part of the fibers, is wrapped around to give the yarn 6 the desired strength.
  • an external part of the fibers so-called capillary fibers
  • the yarn 6 is wrapped around to give the yarn 6 the desired strength.
  • the spinning station is assigned an additive supply 8, which comprises one or more additive stores 15 and one or more, preferably at least partially flexible, additive supply lines 14 that the respective additive reservoir 15 is in fluid communication with an additive delivery 22 arranged in the region of the fiber guiding element 23 or within the spinneret 2 (with regard to possible additives 9, reference is made to the previous description).
  • the additive 9 can be delivered at different locations. While in FIG. 2 an embodiment is shown in which the additive delivery 22 is in the region of the inlet 4 of the spinneret 2 (so that the additive 9 can be applied to the fiber structure 3), the additive 9 can also be added to the introduced via the air nozzles 19 compressed air.
  • the entry of the additive 9 takes place in this case for example via the air supply line 18 or said air supply chamber 17, which extends, for example, annularly around the wall bounding the vortex chamber 5 and over which the air nozzles 19 are supplied with compressed air.
  • the additive supply 8 additionally comprises at least one metering unit 16, which preferably is integrated into the corresponding additive supply line 14 and thus flows through the additive 9.
  • Additive 9 or one compared to the normal operation increased amount of additive 9 for the purpose of said cleaning then applied to the fiber structure 3 and / or the yarn 6, when in the FIGS. 1 and 3
  • Sensor system 11 (which may include one or more optical and / or capacitive sensors) detects a yarn defect 26 in yarn 6 which is designed such that it can not be tolerated in the finished yarn package.
  • the preparation of the yarn 6 for carrying out a cleaner cut is not immediately interrupted. Rather, the yarn preparation is continued with the amount of additive being increased from normal operation to clean the spinneret 2 at this stage. After a certain period of time or after a certain yarn length, the yarn production is finally interrupted, so that a yarn end is formed, which is located between the outlet 7 of the spinneret 2 and the pair of take-off rollers 24 or within the spinneret 2.
  • This yarn end may eventually be caught by the yarn discharge unit 12 (which may, for example, comprise a proboscis). If now the spool of the winding device 1 is rotated backwards until the yarn end exhibiting the yarn section is in the yarn removal unit 12, then it is ensured that the yarn defect 26 and also the yarn section produced after the detection of the yarn defect 26 and thus during the cleaning process are not more on the yarn package of the winding device 1 is located. The yarn section located in the yarn discharge unit 12 (see FIG FIG. 3 ) can finally be separated and disposed of by means of a separation unit from the remaining yarn 6.
  • FIG. 4 purely schematically three yarn sections.
  • the yarn 6 produced during normal operation without addition of additive has a certain degree of hairiness, ie part of the free fiber ends 10 stand outwards.
  • the fiber structure 3 or the yarn 6 is wetted with additive 9, then at least a part of these fiber ends 10 attach to the remaining yarn package (see FIG. 4b )), so that the additive addition can be detected by means of an optical sensor.
  • the mass of the yarn 6 can increase by an additive addition, so that this can also be detected by means of a capacitive sensor and also quantitatively monitored.
  • Figure 4c shows schematically that the additive 9 may also be pearl-shaped, if the additive 9 is added in a pulse-like manner.
  • optical and / or capacitive sensors would be suitable for qualitatively and / or quantitatively monitoring the additive addition during normal operation and in particular also during the cleaning process.

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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)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (12)

  1. Procédé pour exploiter un métier à filer à jet d'air,
    - dans lequel le métier à filer à jet d'air comporte au moine un poste de filage avec une filière de filage (2) pour la fabrication d'un fil (6),
    - dans lequel pendant le fonctionnement du poste de filage un ensemble de fibres (3) est délivré à la filière de filage (2) via une admission (4) et dans un sens de transport (T) prescrit,
    - dans lequel l'ensemble de fibres (3) obtient à l'aide d'un écoulement d'air tourbillonnaire une rotation au sein d'une chambre de turbulence (5) de la filière de filage (2), de sorte qu'un fil (6) soit formé à partir de l'ensemble de fibres (3), lequel quitte finalement la filière de filage (2) via une sortie (7), et
    - dans lequel le fil (6) quittant la sortie (7) est surveillé par au moins un système de capteurs (11) en termes de défauts de fil (26) définis, et
    - dans lequel la fabrication du fil (6) est interrompue en cas de détection d'un défaut de fil (26) correspondant,
    caractérisé en ce que
    entre la détection du défaut de fil (26) cité et l'interruption de la fabrication du fil, un processus de nettoyage est effectué au moins occasionnellement, pendant lequel un additif (9) est délivré au poste de filage et appliqué sur l'ensemble de fibres (3) et/ou le fil (6) fabriqué à partir de l'ensemble de fibres (3) et/ou des parties de la filière de filage (2).
  2. Procédé selon la revendication précédente, caractérisé en ce que le système de capteurs (11) est désactivé pendant le processus de nettoyage et/ou l'analyse des valeurs de mesure délivrées par le système de capteurs (11) est interrompue pendant l'intervalle de temps cité.
  3. Procédé selon la revendication 1, caractérisé en ce qu'une surveillance qualitative et/ou quantitative de l'alimentation en additif a lieu sur la base des valeurs de mesure livrées par le système de capteurs (11) pendant le processus de nettoyage.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la section de fil contenant le défaut de fil (26) est décollé conjointement avec la section de fil fabriquée pendant le processus de nettoyage, après l'interruption de la fabrication de fil, du reste de fil (6) fabriqué avant la détection du défaut (26) de fil correspondant à l'aide d'une unité d'extraction de fil (12), et qu'un processus de rattachement d'un fil est ensuite effectuée, durant lequel une section d'extrémité dudit reste de fil (6) est transportée dans le sens inverse au sens de transport (T) à travers la filière de filage (2), mise en contact avec l'ensemble de fibres (3) et, ensuite, introduite conjointement avec l'ensemble de fibres (3) dans le sens de transport (T) dans la filière de filage (2).
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que la vitesse de livraison de fil de la filière de filage (2) pendant le processus de nettoyage est inférieure à la vitesse de livraison de fil qui règne pendant un fonctionnement normal de la filière de filage (2) antérieur à la détection du défaut de fil (26).
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que pendant le processus de nettoyage, un fil (6) est fabriqué dont la masse linéique est supérieure à la masse linéique du fil (6) qui est fabriqué pendant un fonctionnement normal de la filière de filage (2) antérieur à la détection du défaut de fil (26).
  7. Procédé selon la revendication précédente, caractérisé en ce que la masse linéique du fil (6) fabriqué pendant le processus de nettoyage comporte une valeur qui est inférieure à Nm 30, de préférence, inférieure à Nm 20, de manière particulièrement préférée inférieure à Nm 15.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un processus de nettoyage est effectué à des instants définis même s'il n'existe aucun défaut de fil (26) conduisant à une interruption de la fabrication de fil selon la revendication 1.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que le processus de nettoyage indiqué à la revendication 1 n'est exécuté que si au moins un intervalle de temps prescrit s'est écoulé depuis le dernier processus de nettoyage ou si une longueur ou quantité de fil (6) minimale prescrite a été fabriquée.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce que le débit volumique de l'additif (9) introduit comporte au moins temporairement une valeur entre 0,001 ml/min et 7,0 ml/min, de préférence, entre 0,02 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 (9) introduit comporte au moins temporairement une valeur entre 0,001 g/min et 7,0 g/min, de préférence, entre 0,02 g/min et 5,0 g/min, de manière particulièrement préférée, entre 0,05 g/min et 3,0 g/min.
  11. Métier à filer à jet d'air,
    - qui comporte au moins un poste de filage avec une filière de filage (2) pour la fabrication d'une fil (6) à partir d'un ensemble de fibres (3) délivré à la filière de filage (2),
    - dans lequel la filière de filage (2) comporte une admission (4) pour l'ensemble de fibres (3),
    - une chambre de turbulence intérieure (5),
    - un élément (21) de formation de fil faisant saillie dans la chambre de turbulence (5) ainsi que
    - une sortie (7) pour le fil (6) produit à l'intérieur de la chambre de turbulence (5) à l'aide d'un écoulement d'air tourbillonnaire et
    - dans lequel le poste de filage comprend au moins un système de capteur (11) à l'aide duquel le fil (6) quittant la sortie (7) est surveillé pendant le fonctionnement du poste de filage en termes de défauts de fil (26) définis, et
    - dans lequel le poste de filage comprend une unité de commande qui interrompt la fabrication de fil (6) en cas de détection d'un défaut de fil (26) correspondant,
    caractérisé en ce que
    l'unité de commande se présente sous une forme pour, entre la détection du défaut de fil (26) cité et l'interruption de la fabrication du fil, initier un processus de nettoyage pendant lequel un additif (9) est délivré au poste de filage à l'aide d'une alimentation (8) d'additif et, dans ce contexte est appliqué sur l'ensemble de fibres (3) et/ou sur le fil (6) fabriqué à partir de l'ensemble de fibres (3) et/ou sur des parties de la filière de filage (2).
  12. Métier à filer à jet d'air selon la revendication précédente, caractérisé en ce que l'unité de commande est en relation avec un système de capteur (11) et se présente sous une forme pour commander le métier à filer à jet d'air compte tenu des valeurs de mesure transmises par le système de capteur (11) selon l'une des revendications 1 à 10.
EP15170044.0A 2014-06-12 2015-06-01 Métier à filer à jet d'air et procede de fonctionnement d'un tel métier à filer à jet d'air Not-in-force EP2955255B1 (fr)

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CH00889/14A CH709749A1 (de) 2014-06-12 2014-06-12 Luftspinnmaschine sowie Verfahren zum Betrieb einer solchen.

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EP2955255A3 EP2955255A3 (fr) 2016-05-18
EP2955255B1 true EP2955255B1 (fr) 2018-12-05

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EP (1) EP2955255B1 (fr)
JP (1) JP6533698B2 (fr)
CN (1) CN105200579B (fr)
CH (1) CH709749A1 (fr)

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CH709748A1 (de) * 2014-06-12 2015-12-15 Rieter Ag Maschf Luftspinnmaschine sowie Verfahren zum Betrieb einer solchen.
CH712663A1 (de) * 2016-07-14 2018-01-15 Rieter Ag Maschf Verfahren zum Verarbeiten eines strangförmigen Faserverbands sowie Vorspinnmaschine.
CN107177923A (zh) * 2017-07-26 2017-09-19 太仓市梓怡纺织有限公司 混纺织物的喷气纺纱工艺
IT201800010751A1 (it) * 2018-12-03 2020-06-03 Savio Macch Tessili Spa METODO DI FILATURA AD ARIA PER LA PRODUZIONE DI FILATI GROSSI CON TITOLO INFERIORE A Ne20 E RELATIVO FILATO
DE102018131571A1 (de) * 2018-12-10 2020-06-10 Saurer Spinning Solutions Gmbh & Co. Kg Saugluftanlage
CN109695076B (zh) * 2019-01-18 2020-11-24 安徽日发纺织机械有限公司 一种转杯纺基于引纱卷绕生头装置的节能启动方法
DE102019116671A1 (de) * 2019-06-19 2020-12-24 Maschinenfabrik Rieter Ag Spinnmaschine sowie Verfahren zum Betreiben einer Spinnstelle einer Spinnmaschine
DE102020110991A1 (de) * 2020-04-22 2021-10-28 Maschinenfabrik Rieter Ag Verfahren zum Trennen eines aus einer Spinnkanne an eine Spinnstelle einer Spinnmaschine gelieferten Faserbandes sowie Spinnmaschine
EP4015680A1 (fr) * 2020-12-18 2022-06-22 Saurer Intelligent Technology AG Dispositif de nettoyage pour un élément de formation de fil d'une buse de filage à air ainsi que procédé de nettoyage d'un tel élément de formation de fil
EP4015681A1 (fr) * 2020-12-18 2022-06-22 Saurer Intelligent Technology AG Poste de filage doté d'une buse de nettoyage et procédé de nettoyage d'un élément de formation de fil
LU501576B1 (de) * 2022-03-02 2023-09-11 Saurer Intelligent Technology AG Luftspinnvorrichtung sowie Verfahren zur Oberflächenbehandlung innerhalb einer Luftspinnvorrichtung

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Also Published As

Publication number Publication date
EP2955255A3 (fr) 2016-05-18
US20150361592A1 (en) 2015-12-17
CH709749A1 (de) 2015-12-15
CN105200579B (zh) 2019-02-01
CN105200579A (zh) 2015-12-30
US9670601B2 (en) 2017-06-06
JP6533698B2 (ja) 2019-06-19
EP2955255A2 (fr) 2015-12-16
JP2016027217A (ja) 2016-02-18

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