EP2730685B1 - Elément de formation de fil pour métier à tisser à jet d'air comprenant un insert et filière équipée de celui-ci - Google Patents

Elément de formation de fil pour métier à tisser à jet d'air comprenant un insert et filière équipée de celui-ci Download PDF

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Publication number
EP2730685B1
EP2730685B1 EP13189333.1A EP13189333A EP2730685B1 EP 2730685 B1 EP2730685 B1 EP 2730685B1 EP 13189333 A EP13189333 A EP 13189333A EP 2730685 B1 EP2730685 B1 EP 2730685B1
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EP
European Patent Office
Prior art keywords
yarn
air
inset
spinning
panels
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EP13189333.1A
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German (de)
English (en)
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EP2730685A1 (fr
Inventor
Markus Kübler
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP2730685A1 publication Critical patent/EP2730685A1/fr
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    • 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

Definitions

  • the present invention relates to a yarn-forming member for an air-spinning machine, which serves to produce a yarn from a fiber structure by means of an air flow, wherein the yarn-forming element has a spinning tip with an inlet opening surrounded by an outer surface of the spinning tip, in the region thereof by means of the air flow a Garn is producible, and wherein the Garn avoirselement has an inner insert with an adjoining the inlet port discharge channel for the yarn and a plurality of laterally branching off the discharge duct air outlet openings, so that introduced against a spin direction in the discharge duct air flow partially through the air outlet openings and partially can escape through the inlet opening.
  • a spinneret of an air-spinning machine which serves to produce a yarn from a fiber structure by means of an air flow, the spinneret having a vortex chamber partially surrounded vortex chamber with an inlet port for a fiber strand and at least partially extending into the vortex chamber
  • Garn avoirselement in which the swirl chamber is associated with air nozzles directed towards an outer surface of the yarn formation element, via which air can be conducted into the swirl chamber in order to impart rotation to the fiber structure in the region of an inlet opening of the yarn formation element, and wherein the yarn formation element has a discharge channel adjoining the inlet opening over which the yarn is peelable from the vortex chamber in a spinning direction.
  • an insert for a Garn Strukturselement a corresponding air spinning machine is described, which serves to produce a yarn from a fiber strand by means of an air flow, the insert has a discharge channel for the yarn and a plurality of laterally branching off the exhaust duct air outlet openings, so that one against a spinning direction can be partially vented through the air outlet openings in the extraction duct introduced air flow.
  • a generic Garn Strukturselement is for example from the DE 10 2009 034 206 A1 known.
  • the Garnticianselement has a to a Garnabzugskanal connected exhaust port for the partial removal of air, during a piecing process (in which the yarn end with Help the air against the actual spinning direction to be performed through the trigger channel) is introduced into the Garnabzugskanal.
  • the partial removal of the air ensures that only a part of the air flow, which is introduced during the piecing in the discharge duct, must escape via the inlet opening of the Garn avoirselements.
  • the air flow (which is introduced into the exhaust duct, for example with the aid of an injection nozzle opening into the exhaust duct) is divided into two partial air streams in the region of the inlet opening, a first partial air stream leaving the exhaust duct via the exhaust air opening located in the region of the inlet opening, while second partial air flow enters the vortex chamber surrounding the yarn formation element via the inlet opening and in this case brings about the return of the yarn end desired during the piecing process.
  • the reason for the division of the supplied air is the fact that the region of the inlet opening has a smaller inner diameter than the downstream in the spin direction hood.
  • the yarn end is conveyed into the vortex chamber and ultimately via an inlet mouth of the vortex chamber into the area in front of the spinneret having the vortex chamber. There it is associated with a fiber structure in connection and returned together with this in the vortex chamber in which finally the actual spinning process can be continued.
  • a disadvantage of the described solution is the fact that the exiting through the exhaust air flow inevitably also in the vortex chamber passes and there can produce an unfavorable for the return of the yarn end air flow.
  • a method for influencing the forming in the spindle channel of a spindle during the eddy current air spinning airflow is described by flow-active connection of the spindle channel with the air duct.
  • the method is characterized in that the influencing of the air stream forming in the spindle channel is realized in such a way that no fluid emerges from the inlet opening of the spindle channel.
  • the US 6,029,435 A also describes a yarn formation element in the form of a spindle.
  • the spindle has a central region through which air can escape laterally from the discharge channel to facilitate the piecing process.
  • the extracted air can be regulated by means of a valve, so that certain flow conditions can be realized.
  • the object of the present invention is therefore to propose a yarn-forming element as well as a spinneret equipped therewith which takes this disadvantage into account.
  • the Garnticianselement has an inner insert with a subsequent to the inlet opening discharge channel for the yarn and a plurality of laterally branching off the discharge duct air outlet openings.
  • the air outlet openings in an area which is at least partially surrounded by a wall of the spinning tip.
  • a introduced against the spin direction in the flue duct air flow is thus - as in the above-described prior art - while also split during a piecing, so that during a piecing process (for example with the aid of an injection nozzle) introduced into the flue duct air partially through the air outlet openings and partially escape via the inlet opening.
  • the spinning tip can have a (for example cylindrical) wall section, which adjoins a generally conical tip region in which the inlet opening is located.
  • the wall section advantageously surrounds the insert according to the invention (at least partially) and thus represents a spatial barrier for the air emerging from the air outlet openings.
  • the yarn formation element is finally installed in a spinneret of an air spinning machine such that the wall section, possibly together with another wall section of the Spinneret, limited to a chamber that surrounds the insert. If the chamber finally communicates with a corresponding air discharge channel, the air escaping via the air outlet openings can be removed from the spinneret via the chamber and finally via the air discharge channel without the air having to pass through the vortex chamber.
  • the yarn-forming element according to the invention enables a yarn end to be returned particularly reliably, since the return-causing air flow (which extends from an injection nozzle via the outlet channel and the inlet mouth into the vortex chamber) is not influenced by the air flow passing over the outlet channel leaves the air outlet openings.
  • the use comprises a plurality of mutually adjacent diaphragms, each with an opening, which together define a part of the discharge channel.
  • the part of the discharge channel which runs within the insert, is composed of the individual apertures of the respective apertures, it being pointed out in this connection that the withdrawal channel does not have to have a continuous channel wall.
  • the panels are spaced apart by means of spacers.
  • the spacers are in turn to be placed so that the air outlet openings according to the invention are formed by existing between the panels open spaces.
  • the panels may, for example, be in the form of disc-shaped bodies which have a preferably central aperture and which are spaced apart by means of spacers relative to adjacent panels, the spacers having dimensions which allow air to escape between two adjacent panels.
  • the openings are formed by centrally introduced into the apertures and concentric with each other arranged holes.
  • the bores are easy and precise to produce and finally form a circular portion of the discharge channel, which is preferably opposite to the spinning direction in the inlet opening and after installation in a spinneret in the spinning direction in a channel portion of the spinneret housing empties.
  • the diameters of at least a majority of the bores decrease in the direction of the spinning tip. This results in gradations, over which the respective outer region of a counter to the spin direction through the outlet channel flowing air flow to a certain extent "peeled off” from the inner air flow and discharged through the corresponding air outlet openings. As a result, in this case, the speed of the central air flow remains constant, since the decreasing diameter in connection with the air outlet opening causes a reduction in the volume flow, but not a deceleration of the central air flow.
  • the panels has a running in the longitudinal direction of the discharge duct height, the amount between 0.5 mm and 3.0 mm, preferably between 1.0 mm and 2.0 mm. It is conceivable, for example, to provide the insert with a tip and an end portion facing away from the end, the height of which deviates from the height of the individual intermediate diaphragms. Also, the aperture may have a different height, with the above values have been proven.
  • the number of diaphragms is preferably between 3 and 10, preferably between 5 and 7.
  • the distance between the spacers, caused by the spacers, of at least a majority of the panels amounts to between 0.2 mm and 2.0 mm, preferably an amount between 0.4 mm and 1.5 mm.
  • the distance between all the screens is the same. It is also possible to increase or decrease the distance in the spinning direction.
  • the insert has a tip facing the inlet opening, whose longitudinal extension running parallel to the longitudinal axis of the withdrawal channel is greater than the above-mentioned height of a panel. The same applies preferably also for a tip end facing away from the insert.
  • the spacers is formed as a respective two adjacent panels interconnecting web, wherein the webs are each placed in a, preferably spaced from the apertures, edge region of the panels.
  • the webs may in turn be integrally formed with the panels. It is also conceivable to glue the webs between in each case two adjacent panels or between a panel and the tip of the insert and / or between a panel and the abovementioned end section of the insert. Preferably, more than one web are also arranged between the respective panels in order to increase the stability of the insert.
  • the insert has a tip facing the inlet opening, which is connected to an inner surface portion of the spinning tip, preferably glued and / or pressed.
  • the tip of the insert thus preferably follows the inner surface structure of the spinning tip and in this case passes directly into the inlet mouth of the yarn formation element or its spinning tip.
  • the tip of the insert for this purpose preferably has a conical or frusto-conical outer contour, with which it bears against the correspondingly shaped inner contour of the insert.
  • the insert has a, preferably outer, cross-sectional change in its end region remote from the inlet opening, via which it can be connected to an outlet region of a spinneret of the air-spinning machine.
  • the cross-sectional change may in this case be present, for example, as an annular cross-sectional tapering or widening, which after installation in a spinneret can be brought into positive connection with a corresponding mating section of the spinneret.
  • the countersection also has a corresponding channel section, which adjoins the outlet channel of the insert and forms with it a uniform outlet channel of the spinneret, the change in cross section causes a particularly airtight connection of insert and counterpart section, so that during the spinning or piecing process Pressure losses can be avoided by leakage air.
  • the insert is formed integrally and preferably as a die-cast part, which is preferably provided with a surface coating which has a higher wear resistance than the die-cast part.
  • the insert can be made of a plastic, which was then finished by an appropriate coating.
  • the spinnerette for an air spinning machine according to the invention which serves to produce a yarn from a fiber structure by means of an air flow, is finally characterized by the fact that in the vortex chamber of the spinneret projecting Garn avoirselement has an inner insert according to the previous description, so that one during a piecing process Air flow introduced into the extraction duct in opposite direction to the spinning direction can escape in part via the air outlet openings and partly via the inlet opening.
  • the withdrawal channel communicates with at least one injection nozzle, via which an air flow directed counter to the spinning direction can be introduced into the withdrawal channel.
  • an air flow can be generated, which extends in the direction indicated by the discharge channel.
  • the insert also has the said air outlet openings and also the shutters described, the air flow within the insert is divided into a first and a second air flow, wherein the first air flow leaves the insert via the inlet opening of the spinning tip and the second air flow escape via the air outlet openings can.
  • the spinning tip of the Garn upsetselements merges into a, preferably sleeve-shaped, wall which surrounds the insert and together with the spinning tip an inner, the insert receiving chamber of Garnsentelements limited.
  • the chamber should also open into at least one Lucasab technologicalkanal the spinneret, so that the proportion of introduced via an injection nozzle air, which is separated via the outlet openings of the insert, the spinneret can rely solely on the chamber and the or the adjoining HeilabGermankanäle.
  • a division of an air flow introduced via the at least one injection nozzle takes place such that a first partial air flow via the inlet opening of the spinning tip into the vortex chamber and a second partial air flow via the air outlet openings of the insert into the chamber and from there into the at least an air discharge passage is forcibly guided, without thereby entering the vortex chamber.
  • a mixing of the two air streams within the vortex chamber is thus excluded, so that a yarn can be reliably guided against the spinning direction through the spinneret as soon as the injection nozzle (s) is acted upon with compressed air or are.
  • the air discharge duct or ducts are either connected to an air removal system arranged outside the spinning station or terminate in an outlet which is placed in the region of the outer surface of the spinneret, so that the exiting air is separated into the space surrounding the spinneret can be.
  • the outlet or the air outlet duct or ducts can be provided with a controllable valve in order to close said ducts during the spinning operation and thereby to prevent leakage of leakage air.
  • the spinning tip preferably in the region of the inlet opening facing away from the end face is fixed to the wall, wherein the transition between the wall and spinning tip is preferably designed airtight to avoid leakage air flow.
  • the spinning tip can for this purpose have a, in particular annular, holding portion which is positively connected to a cap sleeve in operative connection.
  • the cap sleeve is in turn connected to said wall and presses the spinning tip in the direction of the same, so that a stable connection of the spinning tip is ensured at the wall having the portion of the spinneret.
  • the wall and the nut preferably have corresponding corresponding threads, so that the force with which the spinning tip is pressed against the adjacent wall of the spinneret or an intermediate seal can be adjusted in a simple manner.
  • removal or replacement of the spinning tip and / or insert is possible at any time.
  • a yarn formation element of an air spinning machine which serves to produce a yarn from a fiber structure by means of an air flow
  • the yarn formation element having a spinning tip with an inlet opening surrounded by an outer surface of the spinning tip, in whose region a yarn is produced by means of the air flow can be generated, and wherein the use of a take-off channel for the yarn and a plurality of laterally branching off the discharge duct air outlet openings, so that one opposite to a spinning direction
  • the insert comprises a plurality of mutually adjacent diaphragms, each with an opening, which together define a part of the exhaust duct, and that the panels are spaced apart by means of spacers from one another, wherein the air outlet openings are formed by existing between the apertures open spaces.
  • FIG. 1 shows a spinneret 31 of an air spinning machine according to the invention (which usually comprises a plurality of corresponding spinnerets 31).
  • the spinneret 31 has a housing 32 with an inlet mouth 21 through which a fiber structure 3 (which is supplied, for example, from a spinneret 31 upstream drafting) is conveyed into an interior and surrounded by a Wirbelhuntwandung 19 swirl chamber 20.
  • the yarn 2 thus produced finally passes through the inlet opening 6 of the yarn-forming element 1 and is finally drawn off from the spinneret 31 via a discharge channel 8 adjoining the inlet opening 6 (the withdrawal is generally effected with the aid of a discharge device downstream of the spinneret 31 in the spinning direction S, for example, a take-off roller pair).
  • the spinneret 31 has one (or more) opening into the discharge channel 8 injection nozzle (s) 23, which is or are in communication with a positive pressure source, not shown. If now the yarn end in the manner described by the spinneret 31 are returned, the injection nozzle 23 is acted upon by an overpressure, so that an air flow is formed which extends against the spinning direction S in the discharge channel 8. In this case, in addition to an air flow to be described in more detail opposite to the spinning direction S, a negative pressure is also created in the outlet region 18 of the spinneret 31, which causes the yarn end to be attracted or sucked in.
  • the inlet opening 6 of the spinning tip 4 usually has a smaller diameter than the outlet channel 8 in the region of the injection nozzle 23.
  • the inlet opening 6 thus represents a bottleneck, the volume flow of introduced with a certain air pressure on air would limit a certain value that could be too low for the return of the yarn 2 into the area of the swirl chamber 20.
  • the yarn formation element 1 now has a plurality of air outlet openings 9, which branch off laterally from the outlet channel 8, the air outlet openings 9 being arranged in the region of an insert 7 of the yarn formation element 1. This can, for example, via a frontal cross-sectional change 17 with a mating portion of the spinneret 31 in contact to create a transition between insert 7 and the adjoining portion of the discharge channel 8.
  • the air outlet openings 9 are realized by individual apertures 10, which are held on the side of the discharge channel 8 spacers 12 (which may be present, for example in the form of the webs shown 14) at a distance.
  • the diaphragms 10 are preferably of circular design and have central apertures 11 formed, for example as bores 13, which in turn each form or delimit a section of the discharge channel 8.
  • the diameter of the apertures 11 of the apertures 10 decrease counter to the spinning direction S.
  • the gradations 33 in turn cause always deflected the respective outer part of the air flow and the insert 7 through the air outlet openings 9, which in the case of FIGS. 1 to 4 are formed by the spaces between the apertures 10 leaves.
  • the inner, undeflected partial air flow in this case retains its initial speed, since damming up of the introduced air is avoided despite the diameter of the discharge channel 8 decreasing counter to the spinning direction S.
  • the result is a central (first) partial air flow, which extends from the injection nozzle 23 via the discharge channel 8 and the inlet opening 6 into the swirl chamber 20 and from there via the inlet mouth 21 into the region in front of the spinneret 31, the speed of which best case remains (almost) constant over the entire distance, so that a reliable return of a yarn end counter to the spinning direction S is made possible.
  • the insert 7 is placed inside the spinning tip 4 of Garn avoirselements 1 and fixed with this example in the region of a tip 15 of the insert 7 against an inner surface portion 16 of the spinning tip 4.
  • the insert 7 can be designed for this purpose, for example, as a (preferably one-piece) die-cast part and / or glued or pressed to the spinning tip 4.
  • the spinning tip 4 is in turn fixed relative to a wall 24 of the spinneret 31 such that a chamber 25 which is closed relative to the swirl chamber 20 is formed, which in turn communicates with one or more air discharge passages 26 (see FIG FIG. 1 ).
  • a chamber 25 which is closed relative to the swirl chamber 20 is formed, which in turn communicates with one or more air discharge passages 26 (see FIG FIG. 1 ).
  • the air flow separated with the aid of the air outlet opening 9 can escape exclusively via the air discharge duct or ducts 26, so that an influence of the partial air flow entering via the inlet opening 6 into the swirl chamber 20 can be effectively prevented.

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

Claims (16)

  1. Élément de formation de fil (1) pour un métier à filer à jet d'air qui sert à la fabrication d'un fil (2) à partir d'un ensemble de fibres (3) à l'aide d'un écoulement d'air, dans lequel l'élément de formation de fil (1) comporte une pointe de filage (4) avec un orifice d'admission (6) entouré par une surface extérieure (5) de la pointe de filage (4), dans la zone de laquelle un fil (2) peut être produit à l'aide de l'écoulement d'air, et dans lequel l'élément de formation de fil (1) comporte un insert intérieur (7) avec un canal d'extraction (8) pour le fil (2) succédant à l'orifice d'admission (6) et plusieurs orifices de sortie d'air (9) se dérivant latéralement du canal d'extraction (8), de sorte qu'un écoulement d'air introduit dans le canal d'extraction (8) contre le sens de filage (S) puisse s'échapper en partie via les orifices de sortie d'air (9) et en partie via l'orifice d'admission (6), caractérisé en ce que l'insert (7) comporte plusieurs diaphragmes (10) voisins les uns des autres avec respectivement une perforation (11), qui limitent ensemble une partie du canal d'extraction (8), et que les diaphragmes (10) sont distancés les uns des autres à l'aide d'écarteurs (12), sachant que les orifices de sortie d'air (9) sont formés par des espaces vides existants entre les diaphragmes (10).
  2. Élément de formation de fil selon la revendication précédente, caractérisé en ce que les perforations (11) sont formés par des alésages (13) incorporés au centre des diaphragmes (10) et agencés de manière concentrique les uns par rapport aux autres, sachant que les diamètres d'au moins une majeure partie des alésages (13) se réduisent de préférence dans la direction orientée vers la pointe de filage (4).
  3. Élément de formation de fil selon la revendication 2, caractérisé en ce qu'au moins une majeure partie des diaphragmes (10) présente une hauteur s'étendant dans le sens longitudinal du canal d'extraction (8), dont la valeur se situe entre 0,5 mm et 3,0 mm, de préférence entre 1,0 mm et 2,0 mm, et/ou que l'écart réciproque entre au moins une majeure partie des diaphragmes (10), déterminé par les écarteurs (12), présente une valeur comprise entre 0,2 mm et 2,0 mm, de préférence, une valeur comprise entre 0,4 mm et 1,5 mm.
  4. Élément de formation de fil selon l'une ou plusieurs des revendications 2 et 3, caractérisé en ce qu'au moins une majeure partie des écarteurs (12) se présente sous la forme d'une tige (14) reliant réciproquement deux diaphragmes (10) adjacents, sachant que les tiges (14) sont respectivement placées dans une zone de bordure des diaphragmes (10), de préférence distante des perforations (11).
  5. Élément de formation de fil selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que l'insert (7) comporte une pointe (15) orientée vers l'orifice d'entrée (6), laquelle est reliée, de préférence collée et/ou pressée, avec une section de surface intérieure (16) de la pointe de filage (4), et/ou que l'insert (7) présente en sa zone frontale éloignée de l'orifice d'admission (6) une variation de section transversale (17), de préférence extérieure, par laquelle il peut être relié avec une zone de sortie (18) d'une filière de filage (31) du métier à filer à jet d'air.
  6. Élément de formation de fil selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que l'insert (7) se présente sous une forme en une pièce et, de préférence, sous la forme d'une pièce moulée sous pression, qui est de préférence pourvue d'un revêtement superficiel qui présente une résistance à l'usure supérieure à celle de la pièce moulée sous pression.
  7. Filière de filage (31) d'un métier à filer à jet d'air, qui sert à la fabrication d'un fil (2) à partir d'un ensemble de fibres (3) à l'aide d'un écoulement d'air, dans laquelle la filière de filage (31) comporte une chambre de turbulence (20) partiellement entourée par une paroi (19) de chambre de turbulence, avec une ouverture d'admission (21) pour un ensemble de fibres (3) et un élément de formation de fil (1) s'étendant au moins partiellement dans la chambre de turbulence (20), dans laquelle des buses d'air (22) orientées vers une surface extérieure (5) de l'élément de formation de fil (1) sont attribuées à la chambre de turbulence (20), via lesquelles l'air peut être injecté dans la chambre de turbulence (20) pour conférer à l'ensemble de fibres (3) une rotation dans la zone d'un orifice d'admission (6) de l'élément de formation de fil (1), et dans laquelle l'élément de formation de fil (1) comporte un canal d'extraction (8) attenant à l'orifice d'admission (6), via lequel le fil (2) peut être extrait de la chambre de turbulence (20) dans une direction de filage (S), caractérisée en ce que l'élément de formation de fil (1) se présente sous une forme selon l'une ou plusieurs des revendications précédentes.
  8. Filière de filage selon la revendication précédente, caractérisée en ce que le canal d'extraction (8) est en relation avec au moins une buse d'injection (23), via laquelle un écoulement d'air orienté contre le sens de filage (S) peut être injecté dans le canal d'extraction (8).
  9. Filière de filage selon la revendication précédente, caractérisée en ce que la pointe de filage (4) de l'élément de formation de fil (1) se transforme en une paroi (24) de préférence tubulaire, qui entoure l'insert (7) et limite conjointement avec la pointe de filage (4) une chambre (25) de l'élément de formation de fil (1) accueillant l'insert (7), laquelle à son tour débouche dans au moins un canal d'évacuation d'air (26) de la filière de filage (31), sachant qu'à l'aide de l'insert (7), une séparation d'un écoulement d'air injecté via l'au moins une buse d'injection (23) est effectuée de sorte qu'un premier écoulement d'air partiel soit guidé via l'orifice d'admission (6) de la pointe de filage (4) dans la chambre de turbulence (20) et un second écoulement d'air partiel via les orifices de sortie d'air (9) de l'insert (7) dans la chambre (25) et, de là, dans l'au moins un canal d'évacuation d'air (26), sans dans ce contexte pénétrer dans la chambre de turbulence (20).
  10. Filière de filage selon la revendication précédente, caractérisée en ce que la pointe de filage (4) comporte de préférence dans la zone de sa face frontale éloignée de l'orifice d'admission (6) une section de retenue (29) en particulier annulaire, qui est en en liaison fonctionnelle par complémentarité de formes avec une douille de recouvrement (28), laquelle fixe la pointe de filage (4) par rapport à la paroi (24), sachant que la douille de recouvrement (28) est de préférence boulonnée à la paroi (24).
  11. Insert intérieur (7) d'un élément de formation de fil (1) d'un métier à filer à jet d'air qui sert à la fabrication d'un fil (2) à partir d'un ensemble de fibres (3) à l'aide d'un écoulement d'air, dans lequel l'insert (7) comporte un canal d'extraction (8) pour le fil (2) et plusieurs orifices de sortie d'air (9) se dérivant latéralement du canal d'extraction (8), de sorte qu'un écoulement d'air introduit dans le canal d'extraction (8) contre le sens de filage (S) puisse s'échapper en partie via les orifices de sortie d'air (9), caractérisé en ce qu' il comporte plusieurs diaphragmes (10) voisins les uns des autres avec respectivement une perforation (11), qui limitent ensemble une partie du canal d'extraction (8), et que les diaphragmes (10) sont distancés les uns des autres à l'aide d'écarteurs (12), sachant que les orifices de sortie d'air (9) sont formés par des espaces vides existants entre les diaphragmes (10).
  12. Insert selon la revendication précédente, caractérisé en ce que les perforations (11) sont formés par des alésages (13) incorporés au centre des diaphragmes (10) et agencés de manière concentrique les uns par rapport aux autres, sachant que les diamètres d'au moins une majeure partie des alésages (13) se réduisent de préférence dans la direction orientée vers la pointe de filage (4).
  13. Insert selon la revendication 12, caractérisé en ce qu'au moins une majeure partie des diaphragmes (10) présente une hauteur s'étendant dans le sens longitudinal du canal d'extraction (8), dont la valeur se situe entre 0,5 mm et 3,0 mm, de préférence entre 1,0 mm et 2,0 mm, et/ou que l'écart réciproque entre au moins une majeure partie des diaphragmes (10), déterminé par les écarteurs (12), présente une valeur comprise entre 0,2 mm et 2,0 mm, de préférence, une valeur comprise entre 0,4 mm et 1,5 mm.
  14. Insert selon l'une ou plusieurs des revendications 12 et 13, caractérisé en ce qu' au moins une majeure partie des écarteurs (12) se présente sous la forme d'une tige (14) reliant réciproquement deux diaphragmes (10) adjacents, sachant que les tiges (14) sont respectivement placées dans une zone de bordure des diaphragmes (10), de préférence distante des perforations (11).
  15. Insert selon l'une ou plusieurs des revendications 11 à 14, caractérisé en ce que l'insert (7) comporte une pointe (15) qui peut être reliée, de préférence collée et/ou pressée, avec une section de surface intérieure (16) de la pointe de filage (4) de l'élément de formation de fil (1), et/ou que l'insert (7) présente en une zone frontale une variation de section transversale (17), de préférence extérieure, par laquelle il peut être relié avec une zone de sortie (18) d'une filière de filage (31) d'un métier à filer à jet d'air.
  16. Insert selon l'une ou plusieurs des revendications 11 à 15, caractérisé en ce que l'insert (7) se présente sous une forme en une pièce et, de préférence, sous la forme d'une pièce moulée sous pression, qui est de préférence pourvue d'un revêtement superficiel qui présente une résistance à l'usure supérieure à celle de la pièce moulée sous pression.
EP13189333.1A 2012-10-29 2013-10-18 Elément de formation de fil pour métier à tisser à jet d'air comprenant un insert et filière équipée de celui-ci Active EP2730685B1 (fr)

Applications Claiming Priority (1)

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DE102012110315.1A DE102012110315A1 (de) 2012-10-29 2012-10-29 Garnbildungselement für eine Luftspinnmaschine mit einem Einsatz sowie damit ausgerüstete Spinndüse

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EP2730685A1 EP2730685A1 (fr) 2014-05-14
EP2730685B1 true EP2730685B1 (fr) 2018-12-05

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US (1) US8966873B2 (fr)
EP (1) EP2730685B1 (fr)
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DE (1) DE102012110315A1 (fr)

Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
DE102014112360A1 (de) * 2014-08-28 2016-03-03 Maschinenfabrik Rieter Ag Garnbildungselement für eine Spinndüse einer Luftspinnmaschine, Luftspinnmaschine sowie Verfahren zum Betrieb einer solchen
JP2016196352A (ja) * 2015-04-06 2016-11-24 村田機械株式会社 給糸ボビン糸端案内装置及びボビン準備システム
DE102015120437A1 (de) * 2015-11-25 2017-06-01 Maschinenfabrik Rieter Ag Luftspinnmaschine sowie Verfahren zum Betrieb derselben
ITUA20163011A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
ITUA20163006A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
DE102016116693A1 (de) 2016-09-07 2018-03-08 Maschinenfabrik Rieter Ag Garnbildungselement und Spinndüse für eine Luftspinnmaschine
EP4043625A1 (fr) * 2021-02-10 2022-08-17 Saurer Intelligent Technology AG Élément de filature

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3829150A1 (de) * 1988-08-27 1990-03-01 Fritz Stahlecker Luftduese fuer pneumatisches falschdrallspinnen
US6438934B1 (en) * 1994-05-24 2002-08-27 University Of Manchester Institute Of Science And Technology Apparatus and method for fabrication of textiles
JP3064951B2 (ja) * 1997-04-24 2000-07-12 村田機械株式会社 糸通し装置
DE19927838B4 (de) * 1999-06-18 2008-01-31 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zur Herstellung gesponnener Fäden
WO2002024993A2 (fr) * 2000-09-22 2002-03-28 Maschinenfabrik Rieter Ag Dispositif de filage
JP2002138329A (ja) * 2000-10-26 2002-05-14 Murata Mach Ltd 糸通し装置
EP1288354A3 (fr) * 2001-08-29 2003-07-16 Maschinenfabrik Rieter Ag Mesures pour influencer le flux d'air dans un canal de filature d'un métier à filer a vortex
DE10311826A1 (de) * 2003-03-13 2004-09-23 Wilhelm Stahlecker Gmbh Vorrichtung zum Herstellen eines gesponnenen Fadens
DE10333411A1 (de) * 2003-07-15 2005-02-03 Wilhelm Stahlecker Gmbh Vorrichtung zum Herstellen eines gesponnenen Fadens aus einem Stapelfaserverband
JP3821132B2 (ja) * 2004-02-06 2006-09-13 村田機械株式会社 紡績機
CN101006214B (zh) * 2004-08-20 2010-05-12 里特机械公司 用于喷气纺纱机的带有喷射导管的锭子和接头方法
DE102004052206A1 (de) * 2004-10-19 2006-04-20 Wilhelm Stahlecker Gmbh Luftdüsenspinnvorrichtung
CN201574228U (zh) * 2009-04-20 2010-09-08 浙江泰坦股份有限公司 一种纺纱装置
DE102009034206A1 (de) 2009-07-17 2011-01-27 Maschinenfabrik Rieter Ag Bauteil für eine Luftdüsenspinnvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
US20140116022A1 (en) 2014-05-01
US8966873B2 (en) 2015-03-03
EP2730685A1 (fr) 2014-05-14
CN103789879B (zh) 2017-10-31
DE102012110315A1 (de) 2014-04-30
CN103789879A (zh) 2014-05-14

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