EP4389947B1 - Poste de filage d'un métier à filer à jet d'air et procédé de mise en uvre d'un processus de filage sur un tel poste de filage - Google Patents

Poste de filage d'un métier à filer à jet d'air et procédé de mise en uvre d'un processus de filage sur un tel poste de filage

Info

Publication number
EP4389947B1
EP4389947B1 EP23217637.0A EP23217637A EP4389947B1 EP 4389947 B1 EP4389947 B1 EP 4389947B1 EP 23217637 A EP23217637 A EP 23217637A EP 4389947 B1 EP4389947 B1 EP 4389947B1
Authority
EP
European Patent Office
Prior art keywords
thread
roller pair
speed
spinning
drafting system
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.)
Active
Application number
EP23217637.0A
Other languages
German (de)
English (en)
Other versions
EP4389947A1 (fr
Inventor
Heinz-Josef Peuker
Martin Reszat
Sarah MEISSNER
Dirk Schiffers
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.)
Saurer Intelligent Technology AG
Original Assignee
Saurer Intelligent Technology 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 Saurer Intelligent Technology AG filed Critical Saurer Intelligent Technology AG
Publication of EP4389947A1 publication Critical patent/EP4389947A1/fr
Application granted granted Critical
Publication of EP4389947B1 publication Critical patent/EP4389947B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D01H4/48—Piecing arrangements; Control therefor
    • 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
    • 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
    • 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
    • D01H4/42—Control of driving or stopping
    • 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
    • D01H5/32—Regulating or varying draft
    • 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
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • 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

Definitions

  • the yarn end that has accumulated on the winding package is picked up from the winding package by means of a yarn take-up device that is located on the spinning station itself or can be moved past the spinning station, in particular on the air-jet spinning machine, in order to transfer it into the vortex chamber of the air-jet spinning device against the actual yarn path direction during the spinning process, in order to be able to join it there with the fiber sliver fed through the drafting device.
  • the yarn end preparation device which is located downstream of the swirl chamber in the direction of the yarn travel path. It serves to cut the yarn end to a predefined length and unravel the yarn end, i.e., free it from its existing twist so that it can be joined to the incoming fiber sliver. After unraveling the yarn end, it is transported to the swirl chamber and held there, releasing a clamp that positions the yarn end in the yarn end preparation device, for example, using blast air.
  • the fiber sliver is fed into the swirl chamber via the drafting system's output roller pair.
  • the sliver is then connected to the free yarn end positioned there, forming a thread in the swirl chamber.
  • the sliver is then drawn out of the swirl chamber via the take-off device.
  • the pairs of drafting and/or apron rollers located upstream of the output roller pair rotate at a final speed that is lower than the take-off speed of the output roller pair, causing the fiber sliver to warp in the drafting system.
  • the drafting system is started up first, and only subsequently is the take-off device started, so that at the beginning of the piecing process, the yarn end has a dwell time in the vortex chamber, during which the fiber sliver fed via the output rollers of the drafting system is connected to the yarn end in the vortex chamber. After this dwell time, both the take-off device and the pair of output rollers of the drafting system are accelerated to a predetermined take-off speed, at which the spinning process then continues.
  • the object of the invention is to provide a method for carrying out a piecing process and an air-jet spinning machine which enable a reliable piecing process.
  • the invention solves the problem by a method having the features of claim 1 and by a spinning station of an air-jet spinning machine having the features of claim 8.
  • a non-linear progression of the speed increase of the take-off roller pair of the The drafting system at the beginning of the piecing process leads to a moderate and even fiber introduction into the swirl chamber, so that the fiber mass within the swirl chamber increases slowly rather than suddenly. Furthermore, the method according to the invention avoids sudden acceleration processes that place stress on the spinning station components, thus resulting in long service life for the components used. The method according to the invention also ensures particularly high thread quality, especially at the beginning of the piecing process.
  • the speed increase curve in the range between the non-linear curve can, in principle, be configured in any desired manner.
  • the output roller pair and/or the take-off unit are ramped up in such a way that their speed is linear in the range between the non-linear start of the ramp-up and/or the non-linear approach to the take-off speed in the range of the end of the ramp-up.
  • This embodiment of the invention ensures, after a moderate start to the piecing process and/or its completion, a rapid execution of the piecing process with a subsequent transition to the spinning process at a constant production speed.
  • Ramping up the take-off unit and/or the output roller pair is understood to mean the commissioning of the drafting system and the take-off unit, during which they are accelerated from a standstill to the take-off speed.
  • the output roller pair and the take-off device have a matching production speed, referred to as the take-off speed.
  • the drafting system and/or apron roller pairs arranged upstream of the output roller pair in the yarn travel direction have a lower production speed in order to achieve the desired draft of the sliver within the drafting system.
  • the drafting system and/or apron roller pairs of the drafting system arranged upstream of the output roller pair in the yarn travel direction are accelerated in such a way that their speed increases non-linearly at the beginning of the acceleration and/or approaches a respective final speed assigned to the take-off speed in a non-linear manner in the region of the end of the acceleration.
  • This embodiment of the invention particularly reliably compensates for sudden accelerations throughout the entire This avoids damage to the drafting system components, which could lead to damage to the drafting system's components.
  • This inventive development of the invention thus increases the service life of the drafting system in a complementary manner and also ensures particularly reliable that the fibers fed by the drafting system reach the swirl chamber in a particularly moderate manner at the beginning of the piecing process.
  • a further development of the invention provides that the drafting system is raised before the take-off device to establish a period of time that defines the dwell time of the yarn end in the vortex chamber.
  • This configuration ensures a sufficiently long period within which the fiber sliver is joined to the free yarn end in the vortex chamber, with the non-linear rise preventing fiber jams in the vortex chamber.
  • the take-off device starts after a reliable connection of the fiber sliver to the yarn end has been completed, so that the yarn can then be drawn out of the vortex chamber and wound onto the take-up package.
  • the output roller pair of the drafting system is raised before and decoupled from the other pairs of drafting rollers and/or apron rollers of the drafting system arranged upstream of the output roller pair in the direction of the yarn travel.
  • the output roller pair of the drafting system can be operated independently of the other drafting system and/or apron roller pairs, it is also possible to drive the output roller pair alone while the drafting system and/or apron roller pairs of the drafting system are stationary.
  • This embodiment of the invention thus also makes it possible to comb out the fiber sliver in the area of the fiber sliver end, whereby the fiber sliver end can be given defined properties that lead to an increase in the quality of the piecing.
  • the control of the output roller pair can be carried out via a control unit depending on the fiber sliver. and thread parameters.
  • the output roller pair prepares the free end of the sliver arranged in the drafting system through a combing process.
  • the combing process can be carried out in such a way that the other drafting system and/or apron roller pairs of the drafting system are stationary or are operated at a low holding speed, which is significantly below the combing speed of the output roller pair, so that a combing process of the free end of the sliver can still be carried out and this can be optimally prepared for the piecing process onto the free yarn end arranged in the vortex chamber. Tracking the sliver through the other drafting system and/or apron roller pairs at a holding speed also allows the free sliver end to be prepared for the piecing process through the combing process over a longer section.
  • Characteristic of the spinning station according to the invention is that it comprises a control unit for a method for carrying out a piecing process at a spinning station of a Air-jet spinning machine according to one or more of claims 1 to 6.
  • the control unit is connected to the spinning station in such a way that it can adjust the parameters required for carrying out the piecing process according to the invention or further developed above on the drafting system and the take-off unit.
  • the control unit can be integrated into a central air-jet spinning machine control unit or provided separately at the spinning station and/or externally from the spinning station, for example, in a mobile or stationary device outside the air-jet spinning machine.
  • control unit is designed in particular to adjust the nonlinear speed increase of the output roller pair and/or the take-off unit at the beginning of the start-up and/or at the end of the start-up.
  • control unit enables variable adjustment of the range of the nonlinear speed increase depending on the fiber sliver to be processed. This can affect both the duration and the acceleration profile in the nonlinear speed increase range.
  • the spinning stations 2 each further comprise a drafting system 4, an air-jet spinning device 5, a take-off device 6, a thread cleaner 7, and a thread traversing device 8, which ensures that the thread 36 spun or produced from the fiber sliver 25 in the air-jet spinning device 5 is wound in intersecting layers onto a winding bobbin 9.
  • the so-called cross-wound bobbin 9 created during the spinning process is held, as usual, in a bobbin frame (not shown) and is rotated by a bobbin drive (also not shown).
  • Each of the spinning stations 2 is also equipped with a thread take-up device 39, which makes it possible to take up a thread end 37 of a finished thread 36 that has run onto the cross-wound bobbin 9 after a spinning interruption and to transfer it to a so-called thread end preparation device 40 arranged in the area of the take-off device 6.
  • the air spinning device 5 essentially consists of a two-part outer housing 14, 15, an expansion housing 16, a nozzle block 17, a fiber sliver guide 18 and a hollow spinning cone 19.
  • the expansion housing 16 in conjunction with the front housing part 14 of the outer housing, forms a front annular space 20, which is connected to an overpressure source 22 via a pneumatic line 21 and is connected to the expansion space 28 arranged in the rear housing part 15 of the outer housing.
  • the blast air nozzle 23 opens into a vortex chamber 33 in the area in front of the inlet opening 35 of the spinning cone 19 and is directed toward the head 24 of the spinning cone 19 in such a way that a rotating air flow is established there.
  • the spinning cone 19 is preferably made of a highly wear-resistant material, for example, a technical ceramic material.
  • the pneumatic line 21 is equipped with a valve 32, which is preferably actuated by a spinning station-specific control unit 38, which is connected to the valve via corresponding control lines.
  • the fiber sliver 25, stored in a spinning can 3, first passes through the drafting system 4 on its way to the cross-wound bobbin 9, where it is strongly drawn. Via the output roller pair 26 of the The sliver 25, which has been drawn by a first and second pair of drafting rollers 51, 52 and the pair of apron rollers 48, is then transferred from the drafting device 4 to the area of the inlet opening 27 of the air-jet spinning device 5 and, under the influence of a vacuum flow present there, is sucked into the vortex chamber 33 of the air-jet spinning device 5.
  • the drawn sliver 25 passes via the sliver guide 18 and the nozzle block 17 to the inlet opening 35 of the hollow spinning cone 19 and is drawn into the spinning cone 19 by the thread 36 forming within the spinning cone 19.
  • the sliver 25 is exposed to the influence of a rotational flow generated by the air flow exiting the nozzle block 17.
  • Valve 32 is open for the defined supply of this air flow initiated by the overpressure source 22 to the nozzle block 17.
  • a valve 34 connected to the control unit 38 via a corresponding control line is open.
  • the workstation's own thread take-up device 39 of the affected work station 2 the thread end 37 of the already finished thread 36 is first retrieved from the cheese 9 and transferred to a thread end preparation device 40 equipped with a holding and opening tube 31, preferably arranged downstream of the air spinning device 5 in the thread running direction R, as shown by way of example in Figures 5 to 8.
  • a thread end preparation device 40 equipped with a holding and opening tube 31, preferably arranged downstream of the air spinning device 5 in the thread running direction R, as shown by way of example in Figures 5 to 8.
  • the thread end 37 is largely freed of twist and loose fibers.
  • the yarn end preparation device 40 has a holding and opening tube 31 arranged in a receiving housing 47.
  • the receiving housing 47 in turn has an annular space 46, to which a compressed air source 42 is connected via a pneumatic line 41.
  • a valve 43 is connected to the pneumatic line 41, which is connected via a control line 44, for example, to the (in Fig. 3 not shown) control unit 38 of the spinning station 2.
  • the holding and opening tube 31 is equipped with at least one blowing nozzle 45, which is connected to the annular space 46.
  • a thread must first be inserted into the holding and unraveling tube 31 to prepare its thread end for a thread joining process.
  • the thread end preparation device 40 can cooperate with at least one cutting device 50, which cuts the retrieved thread 36 to length as required.
  • the valve 43 is activated, and compressed air is blown into the holding and unraveling tube 31 via the blow nozzle 45 in order to pneumatically thread or suck the cut thread end 37 into the holding and unraveling tube 31.
  • the thread guide channel 60 after the Fig. 3 The embodiment shown comprises a first channel section 62 and a second channel section 64 with the interposition of a channel connecting section 66.
  • the first channel section 62 and the channel connecting section 66 are accommodated in a housing 70.
  • the housing 70 has a fastening section (not shown) for fastening the thread guide channel 60 to a frame or housing of a work station 2 of the air-jet spinning machine 1.
  • a first end 64a of the second channel section 64 ends in the housing 70 in a sealing manner with the interposition of an O-ring 80.
  • the channel connecting section 66 comprises a thread deflection section 67 for deflecting the thread 36 between the first channel section 62 and the second channel section 64.
  • the thread deflection section 67 has a circular arc-shaped cross-section, wherein the end 64a of the second channel section 64, which protrudes into the housing 70 and is connected to the channel connecting section 66, is coupled via the circular arc-shaped thread deflection section 67 to a first end 62a of the first channel section 62, which is connected to the channel connecting section 66, for guiding the thread 36 between the air-jet spinning device 5 and the thread end preparation device 40.
  • the thread guide channel 60 thus forms a section that partially encloses the thread path.
  • the thread guide channel 60 can thus be designed compactly.
  • the fastening section can easily be provided on a side of the thread guide channel 60 that faces away from the side enclosing the angle.
  • the housing 70 further comprises a receptacle for a compressed air connection 72, for example in the form of an injector, via which compressed air can be supplied via an inlet 68 into the first channel section 62 to generate pneumatic overpressure, while simultaneously creating a suction effect in the second channel section 64.
  • the inlet 68 borders the first end 62a of the first channel section 62 and supplies the compressed air parallel, in particular congruent, to a thread guide axis of the first channel section 62 and transversely to a thread guide axis of the second channel section 64.
  • the thread guide axis is the axis along which the thread is guided in the thread guide channel 60 or in the respective channel sections 62, 64, 66.
  • the second end 62b of the first channel section 62 borders a nozzle insert 74 accommodated in the housing 70, which is preferably replaceable and non-destructively insertable and removable.
  • the thread end 37 guided out of the first channel section 62 by compressed air, is blown via this nozzle insert 74 toward a funnel inlet 76 located opposite and spaced from the outlet of the nozzle insert 74.
  • the distance between the outlet of the nozzle insert 74 and the funnel inlet 76 is fixed relative to one another and, according to another embodiment, is particularly variably adjustable, whereby a reduction in the intensity of the compressed air guiding the thread end 37 can be achieved.
  • the funnel inlet 76 is followed in the direction of the air-spinning device 5 by two further thread passages 77, 78, between which further gaps are formed for the escape of a defined portion of the compressed air before the thread end 37 can enter the air-spinning device 5 against the thread ribbon or thread running direction R.
  • the funnel inlet 76 with the intermediate thread passages 77, 78 is held between the housing 70 and the air-spinning device 5 by means of fastening screws 79.
  • the air-spinning device 5 and the housing 70 are coupled to one another by means of the fastening screws 79.
  • a position of the funnel inlet 76 and/or the intermediate thread passages 77, 78 along the fastening screws 79 can be variably adjusted as required in order to be able to adjust the portion of the escaping compressed air in the individual sections.
  • the thread or prepared thread end 37 is gently guided to the air-jet spinning device 5.
  • the thread end 37 prepared as above and transferred to the air-jet spinning device 5 is then connected to the fiber sliver 25 presented by the drafting device 4.
  • the thread take-off device 6 is driven by a single motor, for example via a stepper motor, wherein the stepper motor is controlled in such a way that, by detecting the number of steps of the stepper motor, the thread take-off device 6 is driven reversibly, i.e.
  • a sensor connected to the control unit 38 can be provided in the area of the nozzle block 17 and the inlet opening 35 of the spinning cone 19, by means of which the correct positioning of the thread end 37 can also be confirmed.
  • the control unit 38 switches the valves 32 and 34 such that the nozzle block 17 is again pressurized with compressed air.
  • the drafting system 4, which is also driven by an individual motor, and the thread take-off device 6 are controlled such that a free end of the fiber sliver 25 first comes into contact with the prepared thread end 37 of the thread 36, the fiber sliver 25 is intermingled with the prepared thread end 37 of the thread 36, and these are connected to one another in such a way that a new, draw-off-ready thread is created, which can be drawn off in a defined manner from the air-jet spinning device 5 by means of the thread take-off device 6.
  • the piecing process thus transitions into the normal spinning process.
  • Fig. 4 shows a speed curve known from the prior art of an apron shaft driving the apron roller pair 48 and an output shaft of the drafting system 4 driving the output roller pair 26 as well as a take-off motor driving the take-off device 6 during the piecing process.
  • the take-off device 6 already raises the output shaft and the apron shaft of the take-off roller pair 26 and the apron roller pair 48, wherein after a synchronous start, the apron shaft has a lower speed than the output shaft in order to effect a drawing of the fiber sliver 25 in the drafting system 4.
  • the period between the start of the run-up of the drafting system 4 and the take-off device 6 by starting up the take-off motor determines a dwell time, within which the free thread end 37 is positioned in the vortex chamber 33 and is connected to the fiber sliver 25 fed by the drafting system 4.
  • the take-off speed increases linearly up to a predetermined take-off speed, which remains constant during the ongoing spinning process and is referred to as the production speed.
  • the speed increase of the take-off device 6 and the drafting device 4 is linear until the specified take-off speed is reached.
  • Fig. 5 shows a diagram of the speed profile of the output shaft driving the output roller pair 26, as provided in one embodiment of the method according to the invention. Accordingly, during the piecing process, the speed of the output roller pair 26 is non-linear, both at the beginning of the run-up and at the end of the run-up before the predetermined take-off speed is reached; that is, the speed profile exhibits an arcuate shape in sections. Appropriate control of the output roller pair 26 ensures a uniform introduction of the fibers into the vortex chamber 33 and also reduces the loads.
  • Air-jet spinning machine 39 Thread take-up device 2 spinning station 40 Thread end preparation device 3 spinning can 4 drafting system 41 Pneumatic line 5 Air spinning device 42 Compressed air source 6 Extraction device 43 valve 7 Thread cleaner 44 control line 8 Thread traversing device 45 Blow nozzle 9 take-up spool 46 Annular space 13a, 13b Machine frame 47 Housing 14 Outer casing 48 Pair of apron rollers 15 Outer casing 50 Cutting device 16 Expansion housing 51 first pair of drafting rollers 17 nozzle block 52 second pair of drafting rollers 18 Sliver guide 60 Thread guide channel 19 spinning cone 62 first canal section 20 Annular space 62a first end 21 Pneumatic line 62b second end 22 Overpressure source 64 second canal section 23 Blow air nozzle 64a first end 24 Head 64b second end 25 Sliver 66 Canal connection section 26 Output roller pair 67 Thread deflection section 27 Entrance opening 68 confluence 28 Expansion space 70 Housing 29 exhaust air duct 72 Compressed air connection 31 Holding/dissolving tubes 74 Nozzle insert 32 valve 76

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

Claims (10)

  1. Procédé pour la réalisation d'un processus de rattache sur un poste de filage (2) présentant un dispositif de filage à jet d'air (5) d'un métier à filer à jet d'air (1), dans lequel
    - une extrémité de fil (37) arrivant sur une bobine d'enroulement (9) est reçue au moyen d'un appareil de réception de fil (39) et est transférée à un appareil de préparation d'extrémité de fil (40) disposé en aval d'une chambre de tourbillonnement (33) du dispositif de filage à jet d'air (5) dans le sens de parcours de fil,
    - l'extrémité de fil (37) est ensuite traitée dans l'appareil de préparation d'extrémité de fil (40) et est ensuite transférée dans la chambre de tourbillonnement (33) du dispositif de filage à jet d'air (5) et y est positionnée,
    - un train d'étirage (4) est mis en marche pour étirer et amener un ruban de fibres (25) dans la chambre de tourbillonnement (33), dans lequel une paire de cylindres délivreurs (26) du train d'étirage (4) est accélérée jusqu'à une vitesse de dévidage prédéfinie et dans lequel le ruban de fibres (25) est rattaché à l'extrémité de fil (37) préparée dans la chambre de tourbillonnement (33),
    - un appareil de dévidage (6) entraîné par moteur est mis en marche pour dévider le fil (36) filé dans la chambre de tourbillonnement (33) et est alors accéléré jusqu'à la vitesse de dévidage,
    caractérisé en ce que
    le train d'étirage (4) et/ou l'appareil de dévidage (6) sont mis en marche de telle sorte que la vitesse de la paire de cylindres délivreurs (26) et/ou de l'appareil de dévidage (6) se rapproche de manière non linéaire de la vitesse de dévidage prédéfinie dans la zone de la fin de la mise en marche.
  2. Procédé selon la revendication 1, caractérisé en ce qu'une paire de cylindres de train d'étirage (51, 52) et/ou de cylindres de lanières (48) du train d'étirage (4), disposée en amont de la paire de cylindres délivreurs (26) dans le sens de parcours de fil, est mise en marche de telle sorte que sa vitesse augmente de manière non linéaire au début de la mise en marche et/ou se rapproche de manière non linéaire d'une vitesse finale respective associée à la vitesse de dévidage dans la zone de la fin de la mise en marche.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la paire de cylindres délivreurs (26) et/ou l'appareil de dévidage (6) sont mis en marche de telle sorte que leur vitesse est linéaire dans la zone entre le début non linéaire de la mise en marche et/ou l'approche non linéaire de la vitesse de dévidage dans la zone de la fin de la mise en marche.
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que, pour déterminer une période définissant une durée de séjour de l'extrémité de fil dans la chambre de tourbillonnement (33), le train d'étirage (4) est mis en marche avant l'appareil de dévidage (6) dans le temps.
  5. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la paire de cylindres dévideurs (26) est mise en marche avant l'au moins une paire de cylindres de train d'étirage (51, 52) et/ou paire de cylindres de lanières (48) du train d'étirage (4), disposée en amont de la paire de cylindres délivreurs (26) dans le sens de parcours de fil, dans le temps, et de manière à être désolidarisée de celle-ci.
  6. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que, pendant
    - la réception de l'extrémité de fil (37) arrivant sur la bobine d'enroulement (9) et son transfert dans l'appareil de préparation d'extrémité de fil (40) et/ou
    - la préparation de l'extrémité de fil (37) dans l'appareil de préparation d'extrémité de fil (40) et/ou
    - le transfert et le positionnement de l'extrémité de fil (37) préparée dans la chambre de tourbillonnement (33),
    la paire de cylindres délivreurs (26) est actionnée à une vitesse de peignage prédéfinie et l'au moins une paire de cylindres de train d'étirage (51, 52) et/ou paire de cylindres de lanières (48) montée en amont de la paire de cylindres délivreurs (26) dans le sens de parcours de fil est arrêtée ou actionnée à une vitesse d'arrêt associée à la vitesse de peignage et représentant au maximum 10 % de la vitesse de peignage.
  7. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que le train d'étirage (4) et/ou l'appareil de dévidage (6) sont mis en marche de telle sorte que la vitesse de la paire de cylindres délivreurs (26) et/ou de l'appareil de dévidage (6) augmente de manière non linéaire au début de la mise en marche.
  8. Poste de filage (2) d'un métier à filer à jet d'air (1) pour la fabrication d'un fil (36) à partir d'un ruban de fibres (25), présentant,
    - une chambre de tourbillonnement (33) dans laquelle une rotation est communiquée à un ruban de fibres (25) au moyen d'un écoulement d'air pour former un fil,
    - un appareil de dévidage (6) entraîné par un moteur individuel et de manière réversible et permettant de dévider le fil (36) formé dans la chambre de tourbillonnement (33) hors de la chambre de tourbillonnement (33),
    - un train d'étirage (4), comportant une paire de cylindres délivreurs (26), pour le transport du ruban de fibres (25) en direction d'une ouverture d'entrée (35) de la chambre de tourbillonnement (33) et
    - un appareil de préparation d'extrémité de fil (40) permettant de traiter une extrémité de fil (37) reçue en provenance d'une bobine d'enroulement (9) au moyen d'un appareil de réception de fil (39) et de la transférer dans la chambre de tourbillonnement (33),
    caractérisé par
    une unité de commande (38) pour la mise en oeuvre d'un procédé pour la réalisation d'un processus de rattache selon l'une ou plusieurs des revendications 1 à 7.
  9. Poste de filage (2) selon la revendication 8, caractérisé en ce que l'unité de commande (38) est configurée pour régler l'augmentation de la vitesse non linéaire de la paire de cylindres délivreurs (26) et/ou de l'appareil de dévidage (6) au début de la mise en marche et/ou à la fin de la mise en marche.
  10. Poste de filage (2) selon la revendication 8 ou 9, caractérisé en ce que le train d'étirage (4) présente une paire de cylindres de dévidage (26) entraînée par un moteur individuel et pouvant être commandée au moyen de l'unité de commande (38) de manière à être désolidarisée d'autres paires de cylindres de train d'étirage (51, 52) et/ou paires de cylindres de lanières (48).
EP23217637.0A 2022-12-22 2023-12-18 Poste de filage d'un métier à filer à jet d'air et procédé de mise en uvre d'un processus de filage sur un tel poste de filage Active EP4389947B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU503239A LU503239B1 (de) 2022-12-22 2022-12-22 Spinnstelle einer Luftspinnmaschine sowie Verfahren zur Durchführung eines Anspinnprozesses an einer solchen Spinnstelle

Publications (2)

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EP4389947A1 EP4389947A1 (fr) 2024-06-26
EP4389947B1 true EP4389947B1 (fr) 2025-10-08

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US (1) US12281416B2 (fr)
EP (1) EP4389947B1 (fr)
JP (1) JP2024091487A (fr)
CN (1) CN118241344A (fr)
LU (1) LU503239B1 (fr)
MX (1) MX2023013899A (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021103561B3 (de) * 2021-02-16 2022-03-24 Rittal Gmbh & Co. Kg Anordnung für den Transport eines Drahtes von einem Drahtkonfektionierungsautomaten zu einer Abnahmestelle

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3413894A1 (de) * 1983-04-15 1984-10-25 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Verfahren zum ansetzen eines garnendes
GB8527002D0 (en) * 1985-11-01 1985-12-04 Hollingsworth Uk Ltd Open-end spinner piecing method
JP2708001B2 (ja) * 1995-02-10 1998-02-04 村田機械株式会社 紡績機の糸継ぎ装置
KR100296977B1 (ko) * 1996-01-30 2001-11-22 무라타 기카이 가부시키가이샤 방적기의피이싱방법
DE50104822D1 (de) * 2000-11-08 2005-01-20 Rieter Ag Maschf Steuerung von Spinnstellen in einer Spinnmaschine
EP1219737B2 (fr) * 2000-12-22 2012-01-18 Maschinenfabrik Rieter Ag Procédé pour rabouter ou mettre en place un fil crée dans une unité de filature, ladite unité étant equipée pour la mise en oeuvre du procédé
DE10102379A1 (de) * 2001-01-19 2002-07-25 Rieter Ag Maschf Antriebssteuerung für Spinnmaschine
CZ299541B6 (cs) * 2001-10-11 2008-08-27 Oerlikon Czech S.R.O. Zpusob zaprádání na bezvretenových doprádacích strojích a zarízení k jeho provádení
DE10201577A1 (de) 2002-01-17 2003-07-31 Schlafhorst & Co W Spinnvorrichtung zur Herstellung eines gesponnenen Fadens mittels eines umlaufenden Luftstroms
JP3575470B2 (ja) * 2002-03-18 2004-10-13 村田機械株式会社 紡績方法及びその装置
EP1375709B1 (fr) * 2002-06-21 2014-08-06 Maschinenfabrik Rieter Ag Procédé de rattache pour, ou rattachement dans, des postes de filature des métiers à filer à vortex d'air
DE10335651B4 (de) * 2003-07-29 2017-02-23 Wilhelm Stahlecker Gmbh Verfahren und Vorrichtung zum Wiederherstellen eines unterbrochenen Spinnvorganges
DE10353317B4 (de) * 2003-11-10 2013-06-27 Wilhelm Stahlecker Gmbh Verfahren und Vorrichtung zum Wiederherstellen eines zuvor unterbrochenen Spinnvorganges
EP1564317A1 (fr) * 2004-02-10 2005-08-17 Maschinenfabrik Rieter Ag Méthode pour obtenir une partie de fil rattachée de masse constante dans un procédé de filage à vortex
DE102004050968A1 (de) * 2004-10-15 2006-04-20 Wilhelm Stahlecker Gmbh Verfahren zum Vorbereiten eines Ansetzvorganges an einer Luftdüsenspinnvorrichtung
DE102007038871B4 (de) * 2006-08-18 2022-02-17 Rieter Ingolstadt Gmbh Verfahren zum Anspinnen an Textilmaschinen mit einer Mehrzahl von Spinnstellen
CZ306695B6 (cs) * 2015-11-16 2017-05-10 Rieter Cz S.R.O. Způsob obnovení předení na tryskovém dopřádacím stroji
JP2018090923A (ja) 2016-12-01 2018-06-14 村田機械株式会社 紡績機及び紡績方法
DE102017115939A1 (de) * 2017-07-14 2019-01-17 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren zum Betreiben einer Luftspinnvorrichtung, Fadenleitkanal und Luftspinnmaschine umfassend einen solchen Fadenleitkanal

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MX2023013899A (es) 2024-06-24
CN118241344A (zh) 2024-06-25
US20240209550A1 (en) 2024-06-27
EP4389947A1 (fr) 2024-06-26
LU503239B1 (de) 2024-06-24
US12281416B2 (en) 2025-04-22
JP2024091487A (ja) 2024-07-04

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