EP3484801B1 - Procédé de traitement d'un assemblage de fibres en forme de toron ainsi que banc à broches - Google Patents

Procédé de traitement d'un assemblage de fibres en forme de toron ainsi que banc à broches Download PDF

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Publication number
EP3484801B1
EP3484801B1 EP17740114.8A EP17740114A EP3484801B1 EP 3484801 B1 EP3484801 B1 EP 3484801B1 EP 17740114 A EP17740114 A EP 17740114A EP 3484801 B1 EP3484801 B1 EP 3484801B1
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EP
European Patent Office
Prior art keywords
roving
air
spinning nozzle
receptacle
jet spinning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17740114.8A
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German (de)
English (en)
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EP3484801A1 (fr
Inventor
Christian Griesshammer
Petr Haska
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
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Publication of EP3484801A1 publication Critical patent/EP3484801A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/76—Depositing materials in cans or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/86—Arrangements for taking-up waste material before or after winding or depositing
    • B65H54/88—Arrangements for taking-up waste material before or after winding or depositing by means of pneumatic arrangements, e.g. suction guns
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/311—Slivers

Definitions

  • the present invention relates to a method for processing a strand-shaped fiber structure, the fiber structure being fed to an air spinning nozzle of a roving machine used to produce roving, the fiber structure being rotated within the air spinning nozzle during normal operation of the air spinning nozzle with the aid of a turbulent air flow, so that a roving is formed from the fiber structure, and wherein the roving finally leaves the air-spinning nozzle via an outlet of the air-spinning nozzle.
  • Roving machines with corresponding air spinning nozzles are known in the prior art and are used to produce a roving from an elongated, strand-like fiber structure.
  • the air spinning nozzles usually and preferably also in the air spinning machine according to the present invention comprise an internal turbulence chamber and air nozzles opening into the turbulence chamber, via which a turbulent air flow is generated within the turbulence chamber during operation of the air spinning machine.
  • the outer fibers of the fiber structure are wound around the inner core fibers by the turbulent air flow in the area of the inlet opening of a yarn-forming element extending into the turbulence chamber and thus form the core fibers that are crucial for the desired strength of the roving. This creates a roving with a real twist, which is finally discharged from the vortex chamber via a discharge channel and finally leaves the air spinning nozzle via an outlet.
  • roving is to be understood as meaning a fiber structure in which at least some of the fibers are wound around an internal core.
  • This type of yarn is characterized by the fact that, despite a certain strength, which is sufficient to pull the yarn to a subsequent To transport textile machine, is still warpable.
  • the roving can thus using a default device, z. B. the drafting system, a textile machine processing the roving, for example a ring spinning machine, before it is finally spun into a conventional yarn.
  • a corresponding roving machine is, for example, in EP 2511403 A1 described.
  • Closest prior art DE3034812 discloses an apparatus for automatically inserting a sliver into a hopper.
  • CH221905 discloses a method of roving fibers and a machine for carrying out the method.
  • the method for processing a strand-shaped fiber structure is now characterized in that the roving leaving the air spinning nozzle is deposited in or on a receptacle provided in the area of the roving machine.
  • the roving is not wound onto a tube to form a spool. Rather, it is loosely deposited in or on the receptacle, from which it can be removed again after the receptacle has been transported to a subsequent textile machine and processed further.
  • the receptacle is preferably a container, particularly preferably a container that is open at the top, as is known in spinning mills and is generally referred to as a sliver can.
  • the sliver can be designed to be round or elongated, for example rectangular, in a plan view.
  • shape of the container for the present invention is of secondary importance.
  • the receptacle it is also conceivable for the receptacle to be designed merely as a flat section without side walls, onto which the roving is deposited, for example in heaps, during deposition.
  • the recording can thus z. B. be present as a disc-shaped element that can be transported after the filing of the roving with the roving to another textile machine.
  • the decisive factor is that the roving is not wound tightly onto a tube, as is usual, but is placed in or on the receptacle in such a way that it is no longer subjected to tensile stress after being placed.
  • the receptacle is preferably designed as a container which has a volume of at least 0.05 m 3 , preferably at least 0.1 m 3 . Since the amount of roving deposited in or on the receptacle corresponds to the multiple of the amount of roving that can be wound onto a tube, the roving deposited according to the invention can also be passed on to textile machines that have a high roving consumption. For example, appropriately filled containers are ideal as templates for a conventional air-jet spinning machine, on which several hundred meters of yarn per minute are produced at each spinning position.
  • the roving is preferably placed in or on the receptacle in such a way that after the receptacle has been completely filled, the roving has an average density of at least 0.14 g/cm 3 , preferably at least 0.15 g/cm 3 , particularly preferably at least 0 .16 g/cm 3 .
  • the roving is drawn off from the air spinning nozzle with the aid of a drawing-off device.
  • the take-off device can, for example, comprise two corresponding take-off rollers driven by a drive, between which the roving is clamped out after leaving the air spinning nozzle and directed in the direction of the recording.
  • the roving After passing the take-off device, the roving finally reaches the area of a depositing device, is grasped by it and deposited in or on the receptacle.
  • the depositing device ensures that the roving gets into or onto the receptacle in a defined and controlled manner, so that knotting or unfavorable and undefined overlapping of the roving for later removal of the roving from the receptacle are avoided.
  • the roving is preferably deposited in loops in or on the receptacle with the aid of the take-off device, it being possible for the loops to have a circular or oval shape at least in sections.
  • the depositing device preferably comprises a depositing plate with a depositing channel through which the roving is guided during depositing, with the depositing plate being set in rotary motion during depositing of the roving, preferably with the aid of a drive.
  • the drive can be the same drive that also drives the depositing plate, so that both plates can be driven synchronously.
  • the storage plate and/or the turntable can also be driven with the aid of a drive which causes a non-rotary movement of the corresponding turntable and/or the storage plate.
  • a drive which causes a non-rotary movement of the corresponding turntable and/or the storage plate.
  • another movement element could be provided, on which the receptacle is placed or otherwise held while the roving is being deposited and which is moved on a movement path that consists of or includes individual linear or curved sections in order to prevent unwanted rotations of the roving around its longitudinal axis during filing.
  • the recording can be moved exclusively or partially in a translatory manner.
  • the recording is alternately rotated in a first and an opposite second direction.
  • the receptacle could be alternately rotated 360° clockwise and then counterclockwise by the same amount to avoid unwanted rotations of the laid roving.
  • two storage plates could be present, which deposits the roving from two air spinning nozzles arranged next to one another in or on a common receptacle. In this case, too, the storage plates could rotate alternately in opposite directions, with an angular range of 180° being advantageous here.
  • the roving after passing the take-off device, is immediately grasped by the depositing device and deposited in or on the receptacle.
  • the take-off device there are no further elements between the take-off device and the depositing devices that guide the roving through direct contact.
  • one or more sensors can be arranged between the take-off device and the depositing device, which monitor the quality of the roving (thickness, hairiness, etc.) or monitor whether roving emerges from the air spinning nozzle at all and/or enters the area of the depositing device or which monitor the course of the roving.
  • the roving forms a slack between the take-off device and the depositing device, the vertical spatial extent of which is regulated via the depositing speed of the depositing device.
  • the roving thus describes a parabola, for example, between the air spinning nozzle or the take-off device and the depositing device or a guide located in front of it (e.g. a guide roller). If the vertical spatial extension exceeds or reaches a predetermined maximum value, the depositing speed is increased.
  • the depositing speed is reduced, the depositing speed being increased or decreased, for example, by changing the rotational speed of the depositing plate and/or the turntable, and the change preferably being effected by a Control of the roving machine is made automatically.
  • the roving is guided via a guide between the take-off device and the depositing device.
  • the guide may be in the form of a conveyor belt or an elongate channel, for example, and there could be one or more nozzles connected to a compressed air supply to direct the roving towards the laying device or through the guide with the aid of compressed air.
  • the nozzles can also serve as a threading aid due to the air flow emanating from them, in order to move the roving into or onto the guide after it has left the draw-off device or the air spinning nozzle.
  • the normal operation of the roving machine (during which roving is produced and deposited in or on the take-up) is interrupted by stop phases in which no roving is produced by the air spinning nozzle.
  • Reasons for this are, for example, tearing of the roving, a problem in feeding the fiber structure or clogging of the air spinning nozzle.
  • a start phase is run through between such a stop phase and the subsequent normal operation.
  • the starting phase is characterized by the fact that the production of the roving is resumed, with the roving produced by the air spinning nozzle during the starting phase being at least temporarily not deposited in or on the receptacle after leaving the air spinning nozzle, but being disposed of via a roving discharge.
  • the roving removal can be, for example, a suction element (e.g. a suction tube) to which negative pressure is applied.
  • a suction element e.g. a suction tube
  • a receptacle changing process is carried out.
  • the amount of roving or length of roving or the degree of filling mentioned can be monitored with the aid of one or more sensors.
  • the receptacle that has been filled up to this point in time is replaced by an empty receptacle.
  • the changing process can be carried out automatically with the aid of a take-up changing device on the roving machine or else manually by an operator.
  • roving should be produced by the air-jet spinning machine during the take-up changing process.
  • the roving produced is thus placed in or on a first receptacle before the receptacle changing process.
  • the roving is deposited in or on the second take-up, with the corresponding take-ups being shifted under the air spinning nozzle, which always remains in the same place (e.g. by the above-mentioned take-up changing device).
  • a roving loop present between the two recordings after the recording changeover process must finally be severed in order to be able to remove the full recording from the roving machine independently of the filling of the new recording.
  • the roving produced by the air spinning nozzle during the take-up changing process is disposed of at least in sections via a roving discharge.
  • the roving is thus produced continuously during the recording change process, getting into or onto a first recording before the recording changing process and after or already during the recording changing process in or onto a second recording.
  • the roving leaving the air spinning nozzle is discharged via the roving discharge, with the roving section located in or on the first receptacle being separated beforehand.
  • the roving leaving the air spinning nozzle is finally fed back to the depositing device, which deposits the roving in or on the above-mentioned second recording.
  • the amount of roving produced per unit of time by the air spinning nozzle is throttled at least temporarily compared to normal operation during the take-up changing process or during the time in which the roving is disposed of via the roving discharge, in order to minimize the amount of roving disposed of.
  • the production of the roving is temporarily interrupted during or before the take-up changing process. This can be done either by stopping the feed of the fiber structure into the air spinning nozzle or by interrupting the air supply to the same. In any case, the roving production is stopped. If the previously filled recording was replaced by an empty recording, the roving production can be continued again, it being advantageous in principle if the depositing device is already in motion, z. B. in rotation, is offset before the roving reaches the storage device.
  • the receptacle is moved to an air-jet spinning machine used for the production of conventional yarn after it has been partially or completely filled with roving, the roving present in or on the receptacle being spun into a yarn using the air-jet spinning machine.
  • the filled receptacle thus serves as a template for the air-jet spinning machine, which also uses a turbulent air flow to produce a conventional yarn from the roving, which can finally be processed into a fabric, for example with the help of a weaving machine.
  • Corresponding air spinning machines are sufficient in the prior art are known and generally include a large number of spinning positions, each with a drafting system for drawing the roving, a downstream air spinning nozzle for imparting the desired twist and thus for producing the yarn, and a winding unit for winding the yarn leaving the air spinning nozzle.
  • the receptacle after it has been partially or completely filled with roving, is moved to a spinning and knitting machine used to produce a knitted fabric, with a knitted fabric being produced from the roving present in or on the receptacle using the spinning and knitting machine.
  • a spinning and knitting machine usually also includes a drafting system for warping the roving.
  • the knitting unit processes the warped roving into a knitted fabric.
  • the knitting unit of the spin-knitting machine can be located a few centimeters to several meters away from the twisting unit. If this distance is above a predetermined maximum value, it can be advantageous to equip the material with one or more filaments, whereby the filament can be introduced into the material flow in the area of the drafting system or the twist unit, thus creating a kind of core yarn.
  • the roving machine according to the invention for producing a roving from a strand-like fiber structure comprises at least one air spinning nozzle for producing roving from the fiber structure fed to the air spinning nozzle, wherein the air spinning nozzle is designed to impart a rotation to the fiber structure within the air spinning nozzle with the aid of a turbulent air flow generated by air nozzles of the air spinning nozzle , so that a roving is formed from the fiber structure, and wherein the air spinning nozzle has an outlet via which the roving leaves the air spinning nozzle during operation of the same, wherein the roving machine comprises a depositing device, with the help of which the roving leaving the air spinning nozzle into or onto a receptacle can be deposited, and wherein the roving machine has a roving discharge for at least temporary disposal of the roving produced by the air-jet spinning nozzle after leaving the air-spinning nozzle, and wherein the roving machine has a take-off device for drawing off the Includes roving from the
  • the roving machine includes a controller or is connected to a controller that is designed to operate the roving machine according to the method described above.
  • the roving machine can include a drafting system with several drafting system rollers 15, each of which can be rotated about an axis of rotation (only two of the six drafting system rollers 15 are provided with a reference number), the drafting system being connected to a fiber structure 1, for example in the form of a doubled draw frame sliver, during the spinning operation , is supplied.
  • the roving machine shown comprises one or more air spinning nozzles 2 arranged adjacent to one another, each with an internal vortex chamber 23 (see FIG 2 ), in which the fiber structure 1 or at least some of the fibers of the fiber structure 1 is provided with a twist (the precise mode of operation of the spinneret is described in more detail below).
  • the roving machine comprises a take-off device 6, preferably with a plurality of interacting take-off rollers 16, with the aid of which the roving 3 leaving the spinneret via its outlet 4 is grasped and guided (The pull-off rollers 16 can preferably be set in rotary motion with the aid of a drive, which is not shown).
  • the roving machine must not necessarily have a drafting system, as in the 1 and 3 is shown.
  • the roving machine works according to an air spinning process.
  • the fiber structure 1 is guided into the turbulence chamber 23 of the air spinning nozzle 2 via an inlet 13 of the air spinning nozzle 2, in which a so-called fiber guiding element 14 is preferably arranged (see also 2 ).
  • a so-called fiber guiding element 14 is preferably arranged (see also 2 ).
  • Some of the fibers are pulled out of the fiber structure 1 at least a little and wound around the tip of a yarn-forming element 11 protruding into the eddy chamber 23 .
  • the free fiber ends are finally also pulled in the direction of the yarn-forming element 11 and, in the process, wrap around the centrally running core fibers as so-called winding fibers - resulting in a roving 3 having the desired twist.
  • the roving 3 produced is a yarn with a relatively small proportion of twisted fibers, or a yarn in which the twisted fibers are wrapped relatively loosely around the inner core, so that the Roving 3 remains draftable.
  • a subsequent textile machine e.g. a conventional air-jet spinning machine
  • a drafting system in order to be able to be further processed into a conventional yarn which can be processed into a fabric, for example on a weaving machine.
  • the core of the present invention is now the 1 and 3 refer to. So it was previously customary to rove 3 regardless of whether it was with a conventional flyer or an air roving machine, to be wound onto a sleeve.
  • the present invention now proposes loosely depositing the roving 3 after leaving the air spinning nozzle 2 in a receptacle 5 designed as a container, with the sliver cans known in spinning mills preferably being able to be used here.
  • the roving machine has a depositing device 7 for this purpose, which comprises at least one depositing plate 18 .
  • the depositing plate 18 can be rotated with the aid of a drive (not shown) in order to be able to place the roving 3 coming from the air spinning nozzle 2 in a loop in the receptacle 5 .
  • the storage device 7 can also have an in 3 shown turntable 19, with the help of which the receptacle 5 can be set into rotary motion.
  • both the turntable 19 and the storage plate 18 (which in the case of 3 offset to the central axis of the receptacle 5) is set into a rotary movement, this results in the in 3 laying pattern of the roving 3 shown below left or the shown loops 22 ( 3 shows a section of a roving frame and also a partially filled with roving 3 receptacle 5 from above; of course, this does not reflect the actual position of the receptacle 5 with respect to the roving frame).
  • the roving 3 can either be fed directly to the deposit plate 18 or its internal and helically running deposit channel 21 after leaving the take-off device 6 ( 1 ).
  • This embodiment of the roving frame does not fall under the subject matter of the claim.
  • the roving 3 first forms a slack 8 and is then fed to the storage plate 18, with one or more sensors 17 and/or an additional guide 20, e.g. B. in the form of a leadership role, may be present.
  • the sensor or sensors 17 monitor the vertical expansion of the slack 8, with a controller (not shown) regulating the rotational speed of the turntable 19 and/or the storage plate 18 on the basis of the measured values of the sensor or sensors 17, as described above, in order to monitor the vertical expansion in within a defined range.
  • the roving machine has a roving removal 9, for example in the form of a suction tube. If the production of roving is now started, a starting phase takes place first, during which the roving 3 leaving the air spinning nozzle 2 is picked up by the roving discharge 9 and disposed of. If the quality of the roving 3 finally meets the specifications, the roving discharge 9 can be deactivated, with the roving section that has already been discharged from the roving discharge 9 being separated from the roving section with the aid of means (e.g. a cutting unit) that are not shown Air spinneret 2 is produced.
  • means e.g. a cutting unit

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

Claims (9)

  1. Procédé permettant de traiter un assemblage de fibres (1) en forme de brin,
    - dans lequel l'assemblage de fibres (1) est acheminé à une buse de filage à jet d'air (2) d'un banc à broches servant à la fabrication de mèches (3),
    - dans lequel une rotation est donnée à l'assemblage de fibres (1) à l'intérieur de la buse de filage à jet d'air (2) à l'aide d'un flux d'air tourbillonnant pendant un fonctionnement normal de la buse de filage à jet d'air (2), de sorte qu'une mèche (3) est formée à partir de l'assemblage de fibres (1), et
    - dans lequel la mèche (3) quitte finalement la buse de filage à jet d'air (2) par l'intermédiaire d'une sortie (4) de la buse de filage à jet d'air (2), et
    dans lequel la mèche (3) quittant la buse de filage à jet d'air (2) est déposée dans ou sur un réceptacle (5) fourni dans la zone du banc à broches,
    - dans lequel la mèche (3) est retirée de la buse de filage à jet d'air (2) à l'aide d'un dispositif de retrait (6),
    caractérisé en ce que
    le fonctionnement normal est interrompu par des phases d'arrêt dans lesquelles aucune mèche (3) n'est produite par la buse de filage à jet d'air (2), et
    en ce qu'une phase de démarrage est effectuée entre une phase d'arrêt et le fonctionnement normal suivant, pendant laquelle la mèche (3) produite par la buse de filage à jet d'air (2), après avoir quitté la buse de filage à jet d'air (2), n'est pas déposée au moins temporairement dans ou sur le réceptacle (5), mais est éliminée par l'intermédiaire d'une évacuation de mèche (9) et, en ce que la mèche (3) est déposée dans ou sur le réceptacle (5) à l'aide d'un dispositif de dépôt (7) et sous la forme d'une boucle et, en ce que la mèche (3) forme une courbe (8) entre le dispositif de retrait (6) et le dispositif de dépôt (7) dont l'extension verticale dans l'espace est régulée par l'intermédiaire de la vitesse de dépôt du dispositif de dépôt (7).
  2. Procédé selon la revendication précédente, caractérisé en ce qu'ensuite, lorsque le réceptacle (5) a atteint un degré de remplissage défini ou lorsqu'une quantité de mèche ou une longueur de mèche définie a été produite par la buse de filage à jet d'air (2) et déposée dans ou sur le réceptacle (5), un processus de changement de réceptacle est effectué, pendant lequel le réceptacle (5) rempli est remplacé par un réceptacle (5) vide.
  3. Procédé selon la revendication précédente, caractérisé en ce que la fabrication de la mèche (3) n'est pas arrêtée pendant le processus de changement de réceptacle.
  4. Procédé selon la revendication 2 ou 3, caractérisé en ce que la mèche (3) fabriquée par la buse de filage à jet d'air (2) pendant le processus de changement de réceptacle est éliminée, au moins dans certaines régions, par l'intermédiaire d'une évacuation de mèche (9).
  5. Procédé selon la revendication 2 ou 4, caractérisé en ce que la fabrication de la mèche (3) est interrompue temporairement pendant le processus de changement de réceptacle.
  6. Procédé selon la revendication précédente, caractérisé en ce qu'après l'interruption de la fabrication de mèche, une phase de démarrage est réalisée, pendant laquelle la mèche (3) produite par la buse de filage à jet d'air (2) n'est pas déposée au moins temporairement dans ou sur le réceptacle (5) après avoir quitté la buse de filage à jet d 'air (2), mais est éliminée par l'intermédiaire d'une évacuation de mèche (9).
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que le réceptacle (5), après avoir été partiellement ou entièrement rempli avec la mèche (3), est déplacé vers un métier à filer à jet d'air servant à la fabrication de fils, et en ce que la mèche (3) se trouvant dans ou sur le réceptacle (5) est filée pour former un fil à l'aide du métier à filer à jet d'air.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que le réceptacle (5), après avoir été partiellement ou entièrement repli avec la mèche (3), est déplacé vers un métier à tricoter et filer servant à la fabrication d'un tricot, et en ce qu'un tricot est fabriqué à partir de la mèche (3) se trouvant dans ou sur le réceptacle (5) à l'aide du métier à tricoter et filer.
  9. Banc à broches permettant de fabriquer une mèche (3) à partir d'un assemblage de fibres (1) en forme de brin,
    - dans lequel le banc à broches comprend au moins une buse de filage à jet d'air (2) permettant de fabriquer une mèche (3) à partir de l'assemblage de fibres (1) acheminé à la buse de filage à jet d'air (2),
    - dans lequel la buse de filage à jet d'air (2) est conçue pour donner une rotation à l'assemblage de fibres (1) à l'intérieur de la buse de filage à jet d'air (2) à l'aide d'un flux d'air tourbillonnant généré par des buses à jet d'air (10) de la buse de filage à jet d'air (2), de sorte qu'une mèche (3) est formée à partir de l'assemblage de fibres (1), et
    - dans lequel la buse de filage à jet d'air (2) présente une sortie (4) par l'intermédiaire de laquelle la mèche (3) quitte la buse de filage à jet d'air (2) lorsqu'elle est en cours de fonctionnement,
    dans lequel le banc à broches comprend un dispositif de dépôt (7) à l'aide duquel la mèche (3) quittant la buse de filage à jet d'air (2) peut être déposée dans ou sur un réceptacle (5), et dans lequel le banc à broches présente une évacuation de mèche (9) permettant l'élimination au moins temporaire de la mèche (3) produite par la buse de filage à jet d'air (2) après avoir quitté la buse de filage à jet d'air (2), et dans lequel le banc à broches comprend un dispositif de retrait (6) permettant le retrait de la mèche (3) de la buse de filage à jet d'air (2)
    caractérisé en ce que le banc à broches comprend une commande ou est en liaison avec une commande configurée pour faire fonctionner le banc à broches selon l'une des revendications 1 à 6.
EP17740114.8A 2016-07-14 2017-06-27 Procédé de traitement d'un assemblage de fibres en forme de toron ainsi que banc à broches Active EP3484801B1 (fr)

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WO2018011655A1 (fr) 2018-01-18
JP2019525017A (ja) 2019-09-05
CN109415180A (zh) 2019-03-01
US10837128B2 (en) 2020-11-17
US20200181810A1 (en) 2020-06-11
CN109415180B (zh) 2021-12-10
CH712663A1 (de) 2018-01-15
EP3484801A1 (fr) 2019-05-22

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