EP3052683B1 - Poste de filage de machine à filer à jet d'air équipé avec un élément de guidage de fibres - Google Patents

Poste de filage de machine à filer à jet d'air équipé avec un élément de guidage de fibres Download PDF

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Publication number
EP3052683B1
EP3052683B1 EP14792855.0A EP14792855A EP3052683B1 EP 3052683 B1 EP3052683 B1 EP 3052683B1 EP 14792855 A EP14792855 A EP 14792855A EP 3052683 B1 EP3052683 B1 EP 3052683B1
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EP
European Patent Office
Prior art keywords
guiding element
fiber
fiber guiding
center axis
section
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EP14792855.0A
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German (de)
English (en)
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EP3052683A1 (fr
Inventor
Susanne Kaiser
Jürgen Kübler
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP3052683A1 publication Critical patent/EP3052683A1/fr
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    • 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 spinning station of an air spinning machine with the features of the preamble of the independent claim.
  • Air spinning machines with corresponding fiber guide elements or spinning stations equipped therewith are known in the prior art (see for example the DE 40 36 119 C2 ) and are used to manufacture a yarn from an elongated fiber structure.
  • the outer fibers of the fiber assembly are wound around the inner core fibers with the help of a vortex air flow generated by the air nozzles within the swirl chamber in the region of the aforementioned inlet opening of the yarn-forming element and finally form the wrapping fibers which are decisive for the desired strength of the yarn.
  • This creates a yarn with a real twist, which is finally discharged from the swirl chamber via the extraction channel and z. B. can be wound on a spool.
  • the term yarn is understood to mean a fiber structure in which at least some of the fibers are wound around an inner core.
  • This includes a yarn in the conventional sense that can be processed into a fabric using a weaving machine, for example.
  • the invention also relates to air spinning machines, with the aid of which so-called roving (other name: fuse) can be produced.
  • roving other name: fuse
  • This type of yarn is characterized by the fact that despite a certain strength that is sufficient to transport the yarn to a subsequent textile machine, it is still draftable.
  • the roving can therefore with the help of a drafting device, for. B. the Drafting system, a textile machine that processes the roving, for example a ring spinning machine, before it is finally spun.
  • EP990719A1 discloses an apparatus for producing spun threads by means of an air stream.
  • JPH6073618 discloses a spinning device which consists of a rotating or fixed hollow spindle with a conical head part and a guide element.
  • the vortex chamber is formed with groove-like walls.
  • EP431432A1 discloses an apparatus for making a spun thread.
  • JP H04 131660U and JP S60 378 U. 5 disclose spinnerets with a fiber guiding element.
  • the rotation that is generated in the area of the yarn-forming element does not propagate outward via the inlet opening against the direction of transport of the yarn or the fiber structure.
  • the fibers of the fiber assembly keep their original orientation before contact with the vortex air flow and only receive the corresponding rotation within the vortex chamber. If the rotation were to propagate against the direction of transport, the associated reverse rotation of the fiber structure would inevitably lead to a reduced ability of the fiber structure to warp in the region of a drafting device upstream of the swirl chamber.
  • the object of the present invention is therefore to propose a fiber guiding element or a spinning station of an air spinning machine equipped therewith which brings about a further improvement in the fiber guiding in the area between the delivery roller pair and the swirl chamber.
  • the object is achieved by a spinning station of an air spinning machine with the features of the preamble of the independent claim with the characterizing features of the claim.
  • the fiber guiding element has an inner surface which, in a cross section of the fiber guiding element perpendicular to a central axis of the fiber guiding element, comprises several, preferably radially, inwardly directed bulges, at least some of the bulges at least in a front region facing the central axis having a tapering inwards Has contour.
  • the fiber guide element has an inner surface (which in the installed state of the fiber guide element is in contact with the fiber structure comes and takes over its leadership), the contour of which deviates from a cylinder jacket or has elevations and indentations which bring about an increase in surface area.
  • the bulges (or at least a large part of them) have a contour that tapers inwards in their front region facing the central axis (ie in the region that extends furthest in the direction of the central axis), jamming of the fibers or excessive The same is almost impossible (the term "inside” refers to the free space of the fiber guiding element surrounded by the bulges, which serves for the passage of the fibers).
  • the inner surface preferably has at least partially a zigzag-like and / or at least partially undulating shape.
  • the fiber guide element according to the invention also has an inner surface that is closed all around in cross section, so that the term zigzag should not be misunderstood to mean that it is a straight-line section. Rather, the zigzag or wavy sections extend, for example annularly, around the inner cavity of the fiber guiding element, which in turn serves for the passage of the fibers or the fiber composite.
  • the inner surface can only be formed by zigzag or wavy sections. However, it is also conceivable that corresponding sections alternate or that part of the inner surface follows the contour of a cylinder jacket or for example, has an oval or polygon shape in the cross-section mentioned.
  • the course mentioned is formed by bulges which extend in the cross section of the fiber guide element in the direction of a central axis of the fiber guide element.
  • the inner surface thus has, for example, a star shape, the bulges in a longitudinal section of the fiber guide element being able to extend over the entire length or only over a specific longitudinal section of the fiber guide element.
  • all of the bulges have the same radial extension in the direction of a central axis of the fiber guide element (alternatively, the amounts of the radial extensions of the individual bulges can also be of different sizes and increase and decrease several times in the circumferential direction of the fiber guide channel formed by the fiber guide element).
  • the bulges taper in the direction of the central axis of the fiber guide element. This creates inward-facing edges that ensure particularly reliable radial guidance of the passing fiber structure.
  • the tapered sections can be sharp-edged or rounded, in the latter case damage to the fiber structure regardless of its physical nature (fiber type, stack length, fiber diameter, etc.) can be almost excluded.
  • the bulges run parallel to a central axis of the fiber guide element.
  • the bulges in this case extend in the planned direction of transport of the fiber structure, so that the fiber structure is guided almost exclusively in the radial direction.
  • the bulges could also run in a helical manner (with respect to the central axis of the fiber guide element), the winding being able to run in the area of the yarn formation element in the planned direction of rotation or in the opposite direction.
  • the inner surface comprises valleys and peaks which are arranged adjacent to one another in the said cross section of the fiber guide element, at least some of the peaks in the said cross section being placed closer to the central axis than at least some of the valleys.
  • the bulges could each have two wall sections that define the inner surface of the fiber guide element, two adjacent wall sections each defining a mountain and one of the wall sections defining a valley with a further adjacent wall section.
  • the mountains and / or valleys can taper to a point (the roundings mentioned above can also be implemented here).
  • the valleys and / or mountains are formed by wall sections of the fiber guiding element, which are at least largely flat.
  • the inner surface would be at least largely formed by the wall sections mentioned, which, viewed in cross section of the fiber guide element, extend, for example, in a zigzag shape around the central fiber guide channel.
  • two adjacent wall sections each enclose an angle ⁇ in a cross section of the fiber guide element, the amount of which lies between 10 ° and 70 °, preferably between 20 ° and 60 °, particularly preferably between 30 ° and 50 °.
  • the ranges mentioned relate both to the angle ( ⁇ 1) which the two adjacent wall sections form and form a mountain with one another and to the angle ( ⁇ 2) which the two adjacent wall sections forming a valley form with each other. Both angles can also be the same or different. In any case, it is advantageous if both angles are in one of the ranges mentioned.
  • the valleys and mountains have turning points in the cross section of the fiber guide element, the turning points of the valleys and / or mountains each being on a circle, an oval or a polygon, in particular one or more rounded corners (the turning point of a valley is defined as the location of the valley whose distance from the central axis is maximum; the turning point of a mountain is defined as the location of the mountain whose distance from the central axis is minimal).
  • the bulges described above it would be conceivable for the bulges described above to extend inward from an imaginary circle with respect to the central axis of the fiber guide element, the areas with the maximum radially inward extension also lying on a circle.
  • both the mountains and the valleys lie on an oval or the polygon mentioned (e.g. a triangle or square).
  • the fiber guide element can have, for example, a cylindrical basic shape, the valleys and / or peaks, or the bulges forming the valleys and peaks, can be arranged uniformly distributed as seen in the circumferential direction of the fiber guide channel. This enables a particularly uniform guidance of the fiber structure, which minimizes the risk of back planting of the rotation generated in the swirl chamber.
  • the circle defined by the mountains (or their turning points) has a diameter D1
  • its amount is between 1.0 mm and 10.0 mm, preferably between 2.0 mm and 7.0 mm, particularly preferably between 4.0 mm and 5.0 mm.
  • the circle defined by the valleys (or their turning points) has a diameter D2, the amount of which lies between 5 mm and 15 mm, preferably between 6 mm and 12 mm, particularly preferably between 7 mm and 9 mm
  • the areas mentioned result in fiber guide elements which are suitable for the majority of industrially processed fiber associations.
  • the valleys and mountains have turning points in a cross section of the fiber guiding element, the minimum distance between the turning points of the valleys to the central axis of the fiber guiding element being constant and / or the minimum distance of the turning points of the mountains to the central axis of the fiber guiding element being constant , This results in a uniform distribution of the mountains and / or valleys in the circumferential direction of the inner surface.
  • the turning points (or in a longitudinal section of the fiber guide element: turning lines) can in turn be sharp-edged or rounded.
  • the fiber guide element has at least in the region of one of its end faces running through the central axis a maximum outer diameter tapering in a longitudinal direction of the fiber guide element.
  • the fiber guiding element thus tapers in this area, for example, in the transport direction.
  • the corresponding end face can be designed in the shape of a truncated cone in a longitudinal section of the fiber guide element that runs parallel to the central axis, wherein the lateral surface of the truncated cone in the said longitudinal section can have at least an at least partially rectilinear, partially convex and / or partially concave outer contour.
  • the decreasing outside diameter means that the contact area between the fibers and the bulges extending into this area gradually increases in the direction of the larger outside diameter that a smooth entry or exit of the fibers into or out of the fiber guide element (depending on which end face the diameter taper is located) is guaranteed.
  • the center of gravity of the fiber guide element lies on the central axis of the fiber guide element.
  • the fiber guide element also preferably has a shape that is axially symmetrical with respect to the central axis. Incorrect installation of the fiber guiding element is prevented by the properties mentioned, since the fiber guiding element always ensures a uniform radial guidance of the fiber assembly, regardless of a possible twist about its central axis.
  • the fiber guide element is formed in one piece, since this enables particularly simple manufacture.
  • the fiber guide element can also be composed of a base body and an insert, the inner surface designed according to the invention being able to be formed by the insert.
  • the inner surface extends at least largely parallel to the central axis of the fiber guide element. This avoids friction between the fiber guide element and the fiber structure in its transport direction and thus damage to the fiber structure.
  • the cross section has a constant shape at least over the majority of the longitudinal extent of the fiber guide element.
  • the fiber guide element has a central guide element fastened to or formed by its base body, which is at least partially surrounded by the inner surface of the fiber guide element.
  • the middle guide element is located thus in an area that must be passed by the fiber structure entering through the inlet opening of the swirl chamber. This results in a direct contact between the fiber structure and the central guide element, which finally causes a lateral deflection of the fibers of the fiber structure, ie directed perpendicular to a longitudinal axis of the extraction channel.
  • the middle guide element ensures that some of the fibers of the fiber structure are pushed outwards and are thus particularly effectively caught by the air eddy current generated by the air nozzles and around the middle, untwisted one Fiber bandage core can be looped.
  • the central guide element runs at least in sections on the central axis of the fiber guide element, so that it is ensured that the said guide element is surrounded by the fiber structure that passes in the installed state.
  • the fiber guide element has one or more guide sections, for example in the form of guide pins or guide plates, which, starting from the inner surface of the fiber guide element, extend inwards, preferably in the direction of a central axis of the fiber guide element. While it has proven useful in the case of thorns to provide them with a pointed end, the plates can be rounded off on one or more sides in order to avoid damage to the passing fibers.
  • the plates also preferably extend radially inwards and can be placed at equal distances from one another and / or extend inwards starting from the mountains and / or valleys.
  • Fig. 1 shows a schematic view of a section of a spinning station 32 of an air spinning machine (wherein the air spinning machine can of course have a plurality of spinning stations 32, preferably arranged adjacent to one another).
  • the air spinning machine can comprise a drafting system 27, which is supplied with a fiber structure 4, for example in the form of a doubled drawstring.
  • the shown spinning station 32 a spinneret 2 with an internal swirl chamber 18, in which the fiber structure 4 or at least some of the fibers of the fiber structure 4 are provided with a rotation (the exact mode of operation of the spinning location 32 is described in more detail below).
  • the air spinning machine can comprise a pair of draw-off rollers 31 and a winding device 29 (also shown schematically) connected downstream of the pair of draw-off rollers 31 with a bobbin 30 for winding up a yarn 3 leaving the spinning station 32.
  • the spinning station 32 according to the invention does not necessarily have to have a drafting unit 27, as shown in FIG Fig. 1 is shown.
  • the extraction roller pair 31 is also not absolutely necessary.
  • the spinning station 32 shown generally works according to an air spinning process.
  • the fiber structure 4 is guided into the swirl chamber 18 of the spinning station 32 via a fiber guide element 1 provided with an inlet opening 8 (see also FIG 13 to 16 ).
  • a rotation ie at least some of the free fiber ends 28 of the fiber composite 4 are captured by an air flow which is generated by air nozzles 19 correspondingly arranged in a vortex chamber wall 20 surrounding the vortex chamber 18.
  • Some of the fibers are pulled out of the fiber structure 4 at least to a certain extent and wound around the tip of a yarn-forming element 21 protruding into the swirl chamber 18.
  • Yarn 3 can basically be any fiber composite, which is characterized in that an outer part of the fibers (so-called wrapping fibers) is wrapped around an inner, preferably untwisted or, if necessary, also twisted part of the fibers, around the yarn 3 the desired strength to rent.
  • the invention thus also includes an air spinning machine, with the aid of which so-called roving can be produced.
  • Roving is a yarn 3 with a relatively small amount of wrapping fibers, or a yarn 3 in which the wrapping fibers are wound around the inner core relatively loosely, so that the yarn 3 remains draftable. This is decisive if the yarn 3 produced is to be drawn on a subsequent textile machine (for example a ring spinning machine) with the help of a drafting device 27 in order to be able to be further processed accordingly.
  • the individual air nozzles 19 are preferably arranged rotationally symmetrically to one another and open tangentially into the swirl chamber 18 (the air nozzles 19 are otherwise in the FIGS 13 to 16 not shown for reasons of clarity.
  • the spinning positions 32 known in the prior art preferably also have a swirl stowage element, for example inserted into a fiber guide element 1.
  • a swirl stowage element for example inserted into a fiber guide element 1.
  • This can be designed, for example, as a pin partially wrapped by the fibers and prevents rotation in the fiber structure 4 from propagating against a transport direction T of the fiber structure 4 and thus in the direction of the inlet opening 8 of the fiber guide element 1 (this would have negative effects on the yarn formation process, since the corresponding turn after passing the inlet mouth 22 of the yarn-forming element 21 would dissolve again and the rotation given would be partially reversed.
  • the spinning station 32 now has the novel fiber guiding element 1, which counteracts a replanting of the rotation against the transport direction T of the fiber bandage 4 without excessively reducing the number of desired wrapping fibers or causing an undesired mechanical load on the fiber bandage 4 ,
  • the fiber guide element 1 is now characterized in that the inner surface 9 in a cross section of the fiber guide element 1 running perpendicular to a central axis 11 of the fiber guide element 1 has several, preferably radially, inwardly directed Bulges 10 comprises, wherein at least some of the bulges 10 at least in a front region 33 facing the central axis 11 have an inwardly tapering contour.
  • the inner surface 9 of the fiber guide element 1 can have a zigzag course in a cross section of the fiber guide element 1 (see, for example, FIG Fig. 2 and 3 ).
  • the inner surface 9 is formed by a plurality of bulges 10, which in turn define a sequence of alternating valleys 12 and mountains 13.
  • the wall sections 14 of the fiber guide element 1 delimiting the valleys 12 and mountains 13 run at least partially parallel to a central axis 11 of the fiber guide element 1, as is shown, for example, in FIG Fig. 2 is shown.
  • the wall sections 14 advantageously also delimit an angle ⁇ , the amount of which lies between 10 ° and 70 °, preferably between 20 ° and 60 °, particularly preferably between 30 ° and 50 °.
  • the fiber guide element 1 which simultaneously forms a fiber guide channel 24 of the spinning station 32 (see 13 to 16 , which show the fiber guiding element 1 in a possible installation state, in which the outer surface 6 of the same lies against a corresponding counter surface 7 of the spinneret 2 in a form-fitting or non-positive manner), then the external fiber components come into contact with the said mountains 13.
  • the valleys 12 and peaks 13 can moreover (as shown in the figures) be evenly distributed over the circumference of the preferably central fiber guide channel 24, so that the dimensions of the respective peaks 13 and valleys 12 correspond.
  • respective turning points 25 of the inner surface 9 can be angular (see for example Fig. 3 ) or rounded (see e.g. Fig. 7 or 11 ) be trained.
  • a base body 5 of the fiber guide element 1 (which, as shown, is preferably formed in one piece) does not necessarily have to have an outer contour that is round in cross section, as is shown, for example, in FIG Fig. 3 is shown. Rather, an oval cross section ( Fig. 8 ) or polygonal design possible. The same applies analogously to the envelope of mountains 13 or valleys 12.
  • a circular shape see, for example Fig. 3
  • deviating shapes for example an oval (see Fig. 9 ).
  • valleys 12 are partially formed by the outer contour of bores (cf. Fig. 10 and 11 ).
  • the valleys 12 and / or the mountains 13 can be flattened or concave or convex rounded ( Fig. 12 ).
  • the fiber guide element 1 in Fig. 4 : left and right is inclined inwards so that a frustoconical free space 15 is created. If only one end face 34 is designed accordingly, the fiber guiding element 1 can be installed (see FIG 13 to 16 ) be aligned such that said end face 34 points in the direction of the swirl chamber 18. However, it is also conceivable to install the fiber guide element 1 in the opposite orientation in the spinneret 2, so that the free space 15 formed by the fiber guide element 1 acts as a kind of funnel for the fiber structure 4.
  • the angle ⁇ which the wall 16 surrounding the free space 15 forms with the central axis 11 of the fiber guide element 1, should also be have an amount that is between 30 ° and 60 °, preferably between 40 ° and 50 °, particularly preferably between 42 ° and 48 ° (the walls mentioned can also be slightly convex or concave if necessary and thus, for example, on the Surface of an imaginary sphere).
  • the fiber guide element 1 has, at least in the area of one of the end faces 34, an outwardly curved section, as is shown in FIGS Fig. 5 and 6 is shown and which results in an outer diameter D3 of the fiber guide element 1 tapering, preferably in the intended transport direction T of the yarn 3.
  • Said section can, for example, follow the basic basic shape of a truncated cone, the outer surface 35 of which, in the side view shown, has a convex ( Fig. 5 ), concave ( Fig. 6 ) or straight (not shown) outer contour.
  • the spinning station 32 in this case has a plurality of elements which act on the fiber structure 4 from the outside and which converge in the transport direction T of the fiber structure 4.
  • the fiber structure 4 therefore inevitably comes into contact with the guide sections 17 and is, as it were, gripped from the outside, so that rotation thereof in the region of the guide sections 17 is additionally prevented.
  • the guide arrangement further comprises at least one central guide element 26 (see Fig. 16 ), which extends for example in a section running perpendicular to the central axis 11 of the fiber guide element 1 between the guide sections 17. While the outer guide sections 17 and the bulges 10 cause the fiber bandage 4 to be guided “from the outside”, the middle guide element 26 is to a certain extent “inside” the fiber bandage 4 during the yarn production and thus causes the same to be pushed apart.
  • the middle guide element 26 deflects the fibers outwards, or, to put it geometrically, perpendicularly to the central axis 11 of the fiber guide element 1.
  • the free fiber ends 28 are also increasingly pressed outwards, so that it is ensured that the fibers are in spite of outer guide sections 17 and the bulges 10 reach the area of the air flow generated by the air nozzles 19 and can be looped around the fiber core.
  • both the guide sections 17, which are preferably arranged uniformly and at the same distance around the central guide element 26 or the central axis 11 of the fiber guide element 1, and the central guide element 26 can be placed outside the yarn-forming element 21, it is also conceivable that either the guide sections 17 or the middle guide element 26 extend into the draw-off channel 23 of the yarn-forming element 21 (not shown).
  • the middle guide element 26 does not necessarily have to be equipped with a drop-shaped or spherical front section, as shown in FIG Fig. 16 is shown. Rather, it could also be designed as a preferably tapered guide mandrel (comparable to the guide sections 17 shown).
  • the guide sections 17 also do not necessarily have to be present, so that an embodiment is also conceivable in which there is only a central guide element 26 for the bulges 10 according to the invention (cf. Fig. 14 ).
  • the shape and orientation of the guide sections 17 is also not limited to one embodiment. So it would be conceivable, for example, instead of the z. B. in Fig. 15 rod-shaped guide sections 17 shown from the inner surface 9 of the fiber guide element 1 in the direction of its central axis 11 projecting guide plates, which would also prevent the rotation of the fiber assembly 4 against the transport direction T.
  • the middle guide element 26 should run at least in its inwardly directed area on the central axis 11 of the fiber guide element 1, which can again be arranged colinearly with the central axis 11 of the inlet opening 8.
  • the fiber structure 4 thus meets the middle guide element 26 and is deflected laterally accordingly, since it must pass through the middle guide element 26.
  • the guide sections 17 and the central guide element 26 z. B. directed from the inner wall in the direction of the yarn forming element 21, or be part of the fiber guide element 1.
  • an insert for example, a sleeve-shaped design
  • this insert would have to be mounted together with the fiber guide element 1 in the area of the inlet opening 8 of the spinneret 2, so that the fiber guide channel 24 would be formed by two components (of course, the guide sections 17 and / or the middle guide element 26 could also be fixed directly to the vortex chamber wall 20 are, so that the fiber guide element 1 would only have the bulges 10 mentioned).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (13)

  1. Poste de filature (32) d'une machine à filer à jet d'air servant à fabriquer un fil (3) à partir d'un assemblage de fibres (4),
    • dans lequel le poste de filature possède au moins une filière (2) avec une chambre à tourbillon interne (18),
    • dans lequel la filière (2) présente des filières à air (19) orientées dans la chambre à tourbillon (18) et débouchant sur la chambre à tourbillon (18) au niveau d'une paroi de chambre à tourbillon (20) entourant la chambre à tourbillon (18),
    • dans lequel la filière (2) possède un élément de formation de fil (21) s'étendant au moins partiellement dans la chambre à tourbillon (18), avec un orifice d'entrée (22), ainsi qu'un canal d'évacuation (23) pour le fil (3) consécutif dans la direction de transport (T),
    • dans lequel la filière (2) présente un élément de guidage de fibres (1) avec une ouverture d'entrée (8) pour l'assemblage de fibres (4) entrant dans la chambre à tourbillon (18) dans une direction de transport (T) pendant le fonctionnement de la machine à filer à jet d'air,
    • dans lequel l'élément de guidage de fibres (1) possède un corps de base (5) avec une surface extérieure (6) destinée à être appliquée contre une surface complémentaire (7) de la filière (2) afin de pouvoir fixer ainsi l'élément de guidage de fibres (1) au niveau de l'ouverture d'entrée (8) de la filière (2),
    • dans lequel, dans l'élément de guidage de fibres (1), entre l'ouverture d'entrée (8) et la chambre à tourbillon (18), il existe un canal de guidage de fibres (24) avec une surface intérieure (9) pour guider l'assemblage de fibres (4) entrant dans l'ouverture d'entrée (8), et
    • dans lequel la surface intérieure (9) comprend dans une section transversale de l'élément de guidage de fibres (1), s'étendant perpendiculairement à un axe médian (11) de l'élément de guidage de fibres (1), plusieurs saillies (10), de préférence radiales, orientées vers l'intérieur, au moins une partie des saillies (10) présentant au moins dans une zone frontale (33) tournée vers l'axe médian (11) un contour se resserrant vers l'intérieur,
    caractérisé en ce que l'élément de guidage de fibres (1) possède, au moins au niveau d'une de ses faces frontales (34) s'étendant à travers l'axe médian (11), un diamètre extérieur (D3) se resserrant vers l'extérieur, dans lequel la face frontale correspondante (34) de l'élément de guidage de fibres (1) est réalisée de préférence de forme tronconique dans une coupe longitudinale s'étendant en parallèle à l'axe médian (11), dans lequel la surface d'enveloppe (35) du cône tronqué possède dans ladite coupe longitudinale un contour extérieur s'étendant au moins partiellement en ligne droite, partiellement de manière convexe et/ou partiellement de manière concave.
  2. Poste de filature (32) selon la revendication précédente, caractérisé en ce que l'élément de guidage de fibres (1) présente sur la face frontale (34) tournée vers la chambre à tourbillon (18) le diamètre extérieur (D3) qui se resserre, dans lequel la face frontale (34) est réalisée de manière tronconique dans une coupe longitudinale de l'élément de guidage de fibres (1) s'étendant en parallèle à l'axe médian (11), dans lequel la surface d'enveloppe (35) du cône tronqué possède dans ladite coupe longitudinale un contour extérieur s'étendant au moins partiellement en ligne droite, partiellement de manière convexe et/ou partiellement de manière concave.
  3. Poste de filature (32) selon la revendication 1 ou 2, caractérisé en ce que la surface intérieure (9) présente dans ladite section transversale un tracé au moins partiellement en zigzag et/ou au moins partiellement ondulé.
  4. Poste de filature (32) selon l'une quelconque des revendications précédentes, caractérisé en ce que les saillies (10) s'étendent dans ladite section transversale de l'élément de guidage de fibres (1) en direction de l'axe médian (11) de l'élément de guidage de fibres (1), dans lequel les saillies (10) dans ladite section transversale, en particulier en direction de l'axe médian (11), convergent de façon conique, et/ou dans lequel les saillies (10) s'étendent en parallèle à l'axe médian (11) de l'élément de guidage de fibres (1).
  5. Poste de filature (32) selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface intérieure (9) comprend des creux (12) et des pics (13) disposés de manière adjacente dans ladite section transversale de l'élément de guidage de fibres (1), dans lequel au moins une partie des pics (13) dans ladite section transversale est placée plus près de l'axe médian (11) qu'au moins une partie des creux (12), et dans lequel les creux (12) et/ou les pics (13) sont de préférence formés par des sections de paroi (14) de l'élément de guidage de fibres (1) réalisées au moins pour la plupart de manière plane.
  6. Poste de filature (32) selon la revendication précédente, caractérisé en ce que respectivement deux sections de paroi voisines (14) dans ladite section transversale de l'élément de guidage de fibres (1) forment un angle (α1 ou α2) dont la valeur est comprise entre 10° et 70°, de préférence entre 20° et 60°, de plus grande préférence entre 30° et 50°.
  7. Poste de filature (32) selon la revendication 5 ou 6, caractérisé en ce que les creux (12) et/ou les pics (13) dans ladite section transversale de l'élément de guidage de fibres (1) présentent des points d'inflexion (25), dans lequel les points d'inflexion (25) des creux (12) et/ou des pics (13) se situent respectivement sur un cercle, un ovale ou un polygone, présentant en particulier un ou plusieurs angles arrondis, et dans lequel les cercles, ovales ou polygones définis par les creux (12) et/ou les pics (13) possèdent de préférence un centre ou un centre de gravité situé sur l'axe médian (11) de l'élément de guidage de fibres (1).
  8. Poste de filature (32) selon la revendication 7, caractérisé en ce que le cercle défini par les pics (13) possède un diamètre (D1) dont la valeur est comprise entre 1,0 mm et 10,0 mm, de préférence entre 2,0 mm et 7,0 mm, de plus grande préférence entre 4,0 mm et 5,0 mm, et/ou en ce que le cercle défini par les creux (12) possède un diamètre (D2) dont la valeur est comprise entre 5 mm et 15 mm, de préférence entre 6 mm et 12 mm, de plus grande préférence entre 7 mm et 9 mm.
  9. Poste de filature (32) selon l'une quelconque des revendications 5 à 6, caractérisé en ce que les creux (12) et les pics (13) dans ladite section transversale de l'élément de guidage de fibres (1) présentent des points d'inflexion (25), dans lequel la distance minimale des points d'inflexion des creux (12) à l'axe médian (11) de l'élément de guidage de fibres (1) est constante et/ou dans lequel la distance minimale des points d'inflexion (25) des pics (13) à l'axe médian (11) de l'élément de guidage de fibres (1) est constante.
  10. Poste de filature (32) selon l'une quelconque des revendications précédentes, caractérisé en ce que le centre de gravité de l'élément de guidage de fibres (1) se situe sur l'axe médian (11) de l'élément de guidage de fibres (1), et/ou en ce que l'élément de guidage de fibres (1) est réalisé d'une seule pièce.
  11. Poste de filature (32) selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface intérieure (9) s'étend au moins partiellement en parallèle à l'axe médian (11) de l'élément de guidage de fibres (1).
  12. Poste de filature (32) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de guidage de fibres (1) possède un élément de guidage central (26) fixé à son corps de base (5) ou formé par celui-ci, qui est entouré au moins partiellement par la surface intérieure (9) de l'élément de guidage de fibres (1).
  13. Poste de filature (32) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de guidage de fibres (1) possède une ou plusieurs sections de guidage (17), par exemple sous la forme de mandrins de guidage ou de plaques de guidage s'étendant en partant de la surface intérieure (9) de l'élément de guidage de fibres (1) vers l'intérieur, de préférence en direction de l'axe médian (11) de l'élément de guidage de fibres (1).
EP14792855.0A 2013-09-30 2014-09-01 Poste de filage de machine à filer à jet d'air équipé avec un élément de guidage de fibres Active EP3052683B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01674/13A CH708620A1 (de) 2013-09-30 2013-09-30 Faserführungselement für eine Spinndüse einer Luftspinnmaschine sowie damit ausgestattete Spinnstelle.
PCT/IB2014/001661 WO2015044728A1 (fr) 2013-09-30 2014-09-01 Élément de guidage de fibres pour filière de machine à filer à jet d'air et poste de filage ainsi équipé

Publications (2)

Publication Number Publication Date
EP3052683A1 EP3052683A1 (fr) 2016-08-10
EP3052683B1 true EP3052683B1 (fr) 2019-12-18

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EP14792855.0A Active EP3052683B1 (fr) 2013-09-30 2014-09-01 Poste de filage de machine à filer à jet d'air équipé avec un élément de guidage de fibres

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EP (1) EP3052683B1 (fr)
CN (1) CN105765119B (fr)
CH (1) CH708620A1 (fr)
WO (1) WO2015044728A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019100306A1 (de) * 2019-01-08 2020-07-09 Maschinenfabrik Rieter Ag Faserführungselement für eine Spinndüse sowie damit ausgestattete Spinndüse
DE102020108257A1 (de) * 2020-03-25 2021-09-30 Saurer Spinning Solutions Gmbh & Co. Kg Vorrichtung zur Faservereinzelung und Spinneinrichtung umfassend eine solche Vorrichtung

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US4437302A (en) * 1982-01-20 1984-03-20 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho False twisting air nozzle
JPS60378U (ja) * 1983-06-15 1985-01-05 ユニチカ株式会社 バル−ン制御管
DE3541219A1 (de) * 1985-11-21 1987-05-27 Schubert & Salzer Maschinen Verfahren und vorrichtung zum verspinnen von fasern
DE4036119C2 (de) 1989-11-14 1994-07-07 Murata Machinery Ltd Vorrichtung zur Herstellung gesponnener Fäden
DE4003950C1 (fr) * 1990-02-09 1991-06-20 Gevetex Textilglas Gmbh, 5120 Herzogenrath, De
JPH04667U (fr) * 1990-04-18 1992-01-07
JPH04131660U (ja) * 1991-05-23 1992-12-03 村田機械株式会社 紡績用ノズル
JPH0673618A (ja) * 1992-08-24 1994-03-15 Murata Mach Ltd 紡績装置
EP0990719B1 (fr) * 1998-10-02 2003-05-28 W. SCHLAFHORST AG & CO. Métier à filer
DE10261011A1 (de) * 2002-12-17 2004-07-08 Wilhelm Stahlecker Gmbh Vorrichtung zum Herstellen eines gesponnenen Fadens
JP5162975B2 (ja) * 2007-06-21 2013-03-13 村田機械株式会社 紡績装置
JP2012097391A (ja) * 2010-11-05 2012-05-24 Murata Mach Ltd 紡績機
DE102011054302A1 (de) * 2011-10-07 2013-04-11 Maschinenfabrik Rieter Ag Garnbildungselement für eine Spinnstelle einer Luftspinnmaschine mit einem Drallstoppelement

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Also Published As

Publication number Publication date
CN105765119B (zh) 2019-05-17
EP3052683A1 (fr) 2016-08-10
WO2015044728A1 (fr) 2015-04-02
CH708620A1 (de) 2015-03-31
CN105765119A (zh) 2016-07-13

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