EP0326552B1 - Dispositif de torsion de fils - Google Patents

Dispositif de torsion de fils Download PDF

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Publication number
EP0326552B1
EP0326552B1 EP87905447A EP87905447A EP0326552B1 EP 0326552 B1 EP0326552 B1 EP 0326552B1 EP 87905447 A EP87905447 A EP 87905447A EP 87905447 A EP87905447 A EP 87905447A EP 0326552 B1 EP0326552 B1 EP 0326552B1
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EP
European Patent Office
Prior art keywords
channel
yarn
yam
guides
compressed air
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EP87905447A
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German (de)
English (en)
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EP0326552A1 (fr
Inventor
Hulusi Artunc
Gerhard Egbers
Helmut WEINSDÖRFER
Jürgen WOLFRUM
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Deutsche Institute fuer Textil und Faserforschung Stuttgart
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Deutsche Institute fuer Textil und Faserforschung Stuttgart
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams

Definitions

  • the invention relates to a swirling device for swirling multifilament yarns according to the preamble of claim 1.
  • Textured multifilament games are understood to mean bulky games in any way, for example by false texturing, stuffer box texturing, edge drawing texturing, etc. Texturing can be done by crimping the filaments.
  • the purpose of interlacing is to improve the cohesion of the filaments of the multifilament yarn in question and thus its further processability.
  • the individual multifilament yarn is still untwisted or has only a slight protective twist when it runs towards the interlacing device, which does not yet give sufficient cohesion of its preferably thermoplastic or other material filaments for further processing.
  • the multifilament yarn only gets the necessary cohesion when the filaments are interlaced. If necessary, the filaments of several multifilament yarns can be swirled together to form a multifilament yarn in the gam channel into which they enter.
  • Intermingling devices of the present type can preferably be used on texturing machines, but possibly also on other machines or systems, for example on drawn twisting or winding machines, or separately.
  • the best possible cohesion of the filaments of the yarn is desirable, for which it is advantageous if these non-intermingled areas are not excessively long and, if possible, have approximately equal lengths.
  • interlaced areas of multiple lengths of the shorter non-interlaced areas often occur.
  • there are great differences in the cohesion of the filaments i.e. the thread closure of the yarn is not yet particularly good.
  • This intermingling device results in better cohesion of the filaments of the yarns by the intermingling and also allows particularly high yarn feed speeds and relatively low compressed air consumption to be achieved with all the advantages resulting therefrom, such as cost savings, elimination of post-treatment of the game serving to increase the thread closure, and better processability of the yarns Weaving, tufting, knitting, knitting and the like
  • the intermingling device according to the invention can also be used to intermingle the filaments of smooth multifilament games, which are therefore not textured.
  • the angles which include the straight areas of the game located between the thread guides and the thread channel with the areas of the geometric longitudinal axis of the thread channel located outside the thread channel, smaller than with textured multifilament threads, preferably max . 15 °, particularly advantageously approximately 1 to 10 °.
  • Extremely high yarn feed speeds can even be used, for example approx. 6000 mlmin.
  • relatively high yarn feed speeds and particularly high thread closure can be achieved by arranging the yarn guides in operation at a distance of 3 to 25 mm, preferably 5 to 15 mm, from the mouth of the yarn channel adjacent to them.
  • the yarn channel is formed jointly by a lower part and an upper part of the housing of the swirling device that can be lifted by it to open the yarn channel over the entire length of the thread channel, the clear interior of the Gamkanales is formed by a straight groove in the lower part and / or by a straight groove in the upper part. This allows game to be inserted into the open thread channel without any risk of unintentional adjustment of the thread guide.
  • the yarn guides are arranged in such a way that — when the yarn is tensioned and the compressed air supply to or from the blowing nozzles of the yarn channel is switched off — the yarn undergoes such changes in direction when entering and leaving the yarn channel (a, ß) learns that the straight yarn areas located between the yarn guides and the yarn channel, when the compressed air supply is switched on, have to be removed from the adjacent compressed air jet in the direction of the relevant yarn guide.
  • This can be achieved, at least in the case of a circular-cylindrical game channel, in that the aforementioned changes in direction (a, ⁇ ) of the game are greater than half the opening angle (p / 2) of the compressed air jets flowing out of the game channel. In general, this can be achieved in that the spreading angles ( ⁇ ) of the compressed air jets adjacent to these areas of the gum are smaller than the changes in direction (a, ß) of the yarn mentioned.
  • the gam guides for guiding the multifilament yarn have brackets which are open at the bottom and which are held on the upper part by means of supports and are preferably arranged such that they can press the multifilament thread onto the area of the yarn channel located on the lower part.
  • the yarn can automatically get into the gam guides when the housing is closed and out of them again when the housing is opened, which further simplifies operation.
  • blowing nozzle can be assigned to the gam channel, which enables minimal compressed air consumption.
  • This blowing nozzle can expediently open into the bottom of the gam channel, that is to say from below.
  • other arrangements are also possible.
  • the blowing nozzle opens into it on the ceiling or on a side wall of the thread channel, or in special cases several blowing nozzles can also be assigned to the thread channel.
  • the Gamkanal can be particularly useful semicircular or roughly semicircular cross have a section, but possibly also other cross sections, for example also circular cross sections. The latter especially for heavy multifilament games.
  • blowing angle (8) of the blowing nozzle is an acute angle, preferably from 60 to 89 °, particularly advantageously approximately 75 to 85 °.
  • the longitudinal axis of the blowing nozzle can preferably intersect the longitudinal axis of the yarn channel. This is advantageous both for the production of the upper or lower part in question, and is also favorable for technological reasons.
  • Blowing nozzle or the like is understood to mean any type of blowing opening, a compressed air outlet, a bore or the like, which serves to blow a directed compressed air jet into the yarn channel.
  • the blowing nozzle can have a trumpet-shaped rounded initial longitudinal region and can be cylindrical or continuously tapering or in the form of a Venturi nozzle. If low flow losses are not important, the blowing nozzle can also be formed by a continuous cylindrical or other blowing channel, or the like, designed for blowing a directed air jet into the gam channel.
  • the multifilament yarns can preferably be textured multifilament threads.
  • the swirling device 10 shown has a housing 11 which consists of a rigid lower part 12 and a rigid upper part 13 which is hinged to it by means of a hinge 18 and forms a hinged cover.
  • the upper part 13 can be folded up by means of a handle 14 arranged on its front side from the position shown, in which the housing 11 is closed, into the position shown in broken lines in FIG. 2.
  • the upper part 13 and the lower part 12 together form a straight yarn channel 20 which passes through the housing 11.
  • this yarn channel 20 is circumferentially, with the exception of the inlet mouth, a constant through a bore or changing in the direction of flow , preferably narrowing clear cross section formed blowing nozzle 21 closed and open at its inlet mouth 31 and its outlet mouth 32.
  • this yarn channel 20 can be opened by manually, pneumatically or otherwise folding up the upper part 13 its entire length can be opened completely.
  • rigid angled arms 33 of a U-shaped bracket 34 for two gamers 15, 16 fixedly arranged on these arms 33 are also arranged as shown.
  • These gam guides 15, 16 are designed as U-shaped brackets which are always open at the bottom and have guide surfaces 17, 17 'on the upper edges of their interior spaces which are open at the bottom for deflecting the multifilament yarn 19.
  • the arms 33 are provided with openings 35 as wide as possible, reaching as far as the yarn guides 15, 16, so that they and the yarn guides 15, 16 offer as little flow resistance as possible to the compressed air jets flowing out of the yarn channel 20 on both sides, which is favorable for swirling as of the game.
  • the multifilament yarn to be swirled runs approximately horizontally from a stationary game delivery point (not shown) to the gam guide 15 and is guided at it diagonally upwards to the inlet mouth 31 of the gam channel 20, then passes through the gam channel 20 and then runs obliquely down to the gam guide 16 and is deflected by the latter again in an approximately horizontal direction.
  • This illustrated deflection has the effect that, when the compressed air supply is switched off, the multifilament yarn 19 rests in the tensioned state in the yarn channel 20 on the bottom thereof, approximately along an outlet opening the mantle line of the inner circumferential wall of this yarn channel 20 which crosses into it, so that it also bears against the yarn channel outlet mouth when the compressed air supply is switched off.
  • the multifilament yarn 19 running towards the interlacing device 10 consists of a plurality or a plurality of filaments.
  • These filaments can preferably consist of thermoplastic materials, such as, for example, polyamides, polyester, polypropylene, polyethylene, etc.
  • the multifilament yarns can preferably be textured yarns.
  • the multifilament yarn 19 is acted upon by an intensive air jet which interweaves its filaments with one another.
  • the blow nozzle 21 is arranged in the bottom of the gam channel 20, the longitudinal axis 22 of which is inclined at an acute angle 8 to the longitudinal axis 37 of the straight gam channel 20.
  • This angle 8 is referred to as the blowing angle and is approximately 80 ° in this exemplary embodiment as shown.
  • the acute blowing angle 8 corresponds to the angle between the thread area running away from the blowing nozzle 21 and the area of the longitudinal axis 22 of the blowing nozzle located above the blowing nozzle 21, preferably 8 ⁇ 90 °.
  • the gam channel 20 has a constant semicircular clear cross section over its length.
  • the radius of the semicircle of this cross section can be, for example, approximately 1-4 mm.
  • the ceiling 29 of the yarn channel 20 is flat.
  • the blowing nozzle 21 opens into the gam channel 20 in its longitudinal center on the underside opposite the ceiling 29.
  • 3 and 4 has a trumpet-shaped rounded initial longitudinal region, which is adjoined by a cylindrical longitudinal region, which leads to the gam channel 20.
  • the lower part 12 is connected to a compressed air supply nozzle 23, which has a manually operable throttle valve 24.
  • This compressed air nozzle 23 branches off from a compressed air main duct 25 which is connected to a compressed air source, not shown.
  • the blowing direction of the blowing nozzle 21 is directed towards the ceiling 29.
  • the lower part 12 has on its flat upper side a groove or groove 26 of semicircular, constant cross-section, which forms the clear area of the semicircular cross-section of the gullet channel 20.
  • This Gamkanal 20 is closed on the top by a flat, horizontal ceiling 29, which is formed by the flat underside of a plate 27 arranged on the underside of the upper part 13. This plate 27 is most exposed to wear during operation and can therefore be replaced, so that one does not have to replace the entire upper part 13.
  • the straight blowing nozzle 21 opens into the gam channel 20, which begins at an underside channel 30 of the one-piece, rigid lower part 12 with a trumpet-shaped inlet opening and then continues in a circular cylindrical manner up to the gam channel 20.
  • the longitudinal axis 22 of the rotationally symmetrical blowing nozzle 21 falls into the longitudinal center plane of the gamecane 20 bisecting the ceiling 29.
  • angles a and ß which form the longitudinal direction of the gamecanal 20 with the area of the multifilament yarn 19 that runs in and out from it, can preferably be 10 to 40 °, particularly advantageously 15 to 25 ° and textured yarns for smooth, d. H. non-textured yarns useful max. 15 °, preferably about 1 to 10 °.
  • These angles a, ⁇ can expediently be measured when the compressed air supply is switched off, since the yarn can oscillate when the compressed air supply is open. However, these angles can also be determined as the angles a, ⁇ between the straight paths of the yarn 19 from the thread channel 20 to the thread guides 15, 16 and the longitudinal direction of the thread channel.
  • the multifilament yarn 19 is placed at such angles on the bottom edges of the inlet and outlet mouths of the yarn channel 20, since it then runs towards it from obliquely below and continues from it obliquely below.
  • the yarn 20 can at least then, as long as it is not blown with compressed air, rest against the bottom of the yarn channel 20 having the outlet mouth of the blowing nozzle 21. This is particularly favorable for swirling the multifilament game 19 well.
  • compressed air flows from the main duct 25 via the connecting piece 23 into the blowing nozzle 21, so that the multifilament yarn 19 passing through the thread duct 20 is thereby swirled by the intensive blowing air jet flowing out of the blowing nozzle 21. Excellent intermingling of the yarn 19 is achieved.
  • the clear interior of the yarn channel 20 is formed by a groove 26 embedded in the lower part 12.
  • this clear interior is formed at least partially by a groove recessed in the upper part 13.
  • the upper part 13 is pivotably articulated to the lower part 12 as shown. This is particularly easy. However, it can also be withdrawn in another way.
  • the upper part can also be expediently used by means of a straight guide or a parallelogram guide with the lower part or connected to it in any other way, or it can be removed entirely by hand.
  • the upper part 13 is also formed symmetrically with respect to its longitudinal center plane that perpendicularly intersects the gam channel 20.
  • the upper part 13 is held in its closed position by a locking means 38 which interacts with the lower part 12.
  • the resistance of this latching is overcome when the upper part 13 is opened and closed again.
  • the axis of rotation 36 of the upper part 13 runs parallel to the yarn channel 20 and as a result the groove 26 of the thread channel 20 and thus the multifilament yarn stretched in this groove is optimally accessible when the upper part 13 is folded up, since the two thread guides 15, 16 together with it the upper part 13, with which they are immovably connected, have been moved up with the upper part.
  • the multi-filament yarn can then be removed from the groove 26 of the lower part 12 without cutting through it and it or another multifilament yarn can be reinserted into this groove.
  • the two gamers 15, 16 automatically engage with this newly inserted multifilament gam 19 and the gam channel 20 is then closed again on the circumference and this swirling device is thus ready for operation again.
  • the wide openings 35 are present in the arms 33 and the bow-shaped gam guides 15 and 16 are made relatively small.
  • a further measure which is advantageous in this respect can consist in that outside the gam channel at a distance from its entry mouth and / or Outlet mouth is arranged at least one air guide surface for deflecting the compressed air jets flowing out of the yarn channel from the game path. This is achieved in that the gam guides are provided on their outer sides with such obliquely directed surfaces 42, 43 that these surfaces deflect the compressed air jets obliquely upwards from the gamlaufweg.
  • the carriers are provided with air deflecting surfaces for deflecting the compressed air jets from the yarn or that separate air deflecting surfaces are arranged on them.
  • the length of the game channel 20 can preferably be 10 to 28 mm for textured games.
  • Swirling devices manage with low compressed air consumption.
  • FIG. 7 shows a section through a circular cylindrical thread channel 20. Its only blowing nozzle 21 has an acute blowing angle 8.
  • the compressed air flowing out of it during operation generates compressed air jets 44 which flow freely out of both mouths 31, 32 of the gam channel 20, the opening angles of which are denoted by p.
  • p can normally be approx. 14 to 16 ° for free rays.
  • the angles a, ⁇ of the yarn direction changes when the game 19 enters and exits the game channel 20 can usually advantageously be greater than p / 2, that is to say preferably greater than 7 to 8 °. They can preferably be greater than 9 °.
  • the compressed air jets 44 do not interfere with the running of the yarn 19 outside the gam channel 20, to which, if necessary, low-drag design of the gam guides 15, 16 and / or their carrier 33 can or may even have to contribute if they form disruptive flow resistances for the compressed air jets 44 .
  • the gamkan length was 15 mm.
  • the radius of the semicircular cross-section of the gam channel was 1.5 mm and the diameter of the blowing nozzle at its outlet mouth was 1.3 mm.
  • the blowing angle 8 was 80 °.
  • the angles a and ⁇ were each 20 °.
  • a yarn was swirled, which consisted of 36 filaments made of polyester. It was textured by false twimes.
  • the thread count was 55 dtex.
  • the swirl feed rate was 620 ml min.
  • the compressed air consumption was 2 to 4 Nm 3 / h.
  • the entangled yarn was examined.
  • the number of swirled parts of the game was approx. 140 / m.
  • the length of each swirled area was approx. 2 mm.
  • the non-swirled areas or areas between the swirled areas of the game all had essentially the same length of approximately 5 mm.
  • the intermingled and non-intermingled parts of the game resulted in a yarn with an almost periodic character of the intermingling.
  • Nm 3 is the standard cubic meter.
  • the swirling device had the dimensions and dimensions as in Example 1 with the following difference:
  • the outlet mouth of the blowing nozzle had a diameter of 1.5 mm. It became a textu tested polyester gam with a fineness of 167 dtex, which consisted of 32 filaments.
  • Two such games were simultaneously fed to the intermingling device and intermingled in it, so that the intermingled total yarn resulting from the intermingling of these two yarns had a fineness of 334 dtex.
  • the game feed speed was 620 m / min.
  • the compressed air consumption was approx. 8 Nm 3 / h.
  • the swirled yarn had about 100 swirled spots per meter.
  • the swirl was also almost periodic.
  • the swirled areas had a length of approx. 3 millimeters and the non-swirled areas had a length of approx.
  • the gamkan length was 25 mm.
  • the gam channel had a circular diameter of 5 mm.
  • the outlet mouth of the blow nozzle had a diameter of 3.3 mm.
  • the blowing angle was 80 °.
  • the angles a and ⁇ were approximately 20 °.
  • the distances of the gam leaders from the gam channel mouths were approx. 15 mm.
  • a textured yarn made of polyamide was swirled at 1300 dtex.
  • the feed speed was 1800 m / min. This yarn was textured in a swaging process in front of the intermingling device.
  • the individual swirling points were each about 5 mm long.
  • the non-vortexed areas had lengths of approximately 20 mm.
  • This yarn also had an almost periodic interlacing character.
  • the air consumption was 20 to 25 Nm 3 / h.
  • the yarn guides were at a distance of about 7 mm from the adjacent thread channel openings.
  • angles ⁇ , ⁇ correspond to the angles between lines 45 and 47 or between lines 46 and 47.
  • the position of the gam guides 15, 16 can expediently be adjusted in order to adjust these angles a, ⁇ and to be able to adjust them differently depending on the desired swirl intensity.
  • the yarn channel 20 is straight and preferably has a constant cross section over its length or essentially over its length.
  • the outlet mouth 40 of the blow nozzle 20 is located approximately in the longitudinal center of the thread channel 20 so that it from its inlet mouth and outlet mouth each has approximately the same distance, which is expedient.
  • the blowing nozzle 21 is inclined to the longitudinal axis of the gam channel at a blowing angle of less than 90 °
  • the cross section of the blowing nozzle 20 can preferably be circular, but the edge 39 of the outlet opening 40 is found to be non-circular, which is caused by the rounding of the wall of the duct at this outlet opening 40 and the acute blowing angle.
  • the cross section of the gam channel 20 is essentially semicircular, the outlet mouth 40 of the blowing nozzle 21 being, as shown, in the middle of the wall region of the gam channel 20 which is approximately semicircular in cross section, which is extremely useful for good swirling of the multifilament game.
  • the contour of the cross section of the yarn channel 20 is made up of an approximate semicircle 50 and the contour of the ceiling 29 of the yarn channel 20 opposite the blowing nozzle 21, which, as shown, has a flat, convexly curved central region which merges into the semicircular contour line 50 via flat concave curvatures , together.
  • the distance h of the edge 39 of the outlet mouth 40 of the blow nozzle 21 from the wall surface or ceiling 29 of the thread channel 20 diametrically opposite this outlet mouth 40 can preferably be a maximum of 6 mm, preferably a maximum of 2 mm, in the geometric longitudinal center plane 41 of the yarn channel bisecting the outlet mouth 40 of the blow nozzle 21 be. Since the yarn channel 20 has a constant clear cross section over its length or almost over its length, h is correspondingly constant over the length or almost over the length of the yarn channel 20.
  • the ratio h / b max of this distance h to the maximum width b max of the yarn channel 21 measured perpendicularly to it is approximately 0.54 in this exemplary embodiment.
  • the ratio h / b max can be at most 1.0, preferably at most 0.9, particularly expediently at most 0.6 and / or at least 0.3, preferably at least 0.4, for any cross-sections of the yarn channel, which, like that
  • the above-mentioned preferred limit values for very good swirling of the multifilament game, high game feed speeds, relatively uniform distances between the swirled game areas and also swirled game areas of relatively short length can be achieved, so that relatively large numbers of swirled places can be reached per running meter of game length.
  • the number of swirled areas per meter of thread length can be varied within wide limits by the pressure at which the preferably only air jet is blown into the yarn channel through the blowing nozzle, that is to say by its blowing speed.
  • the game swirling device is also characterized in that it manages with a relatively low consumption of compressed air.
  • the multifilament yarn 19 is guided in such a way that - in the tensioned state when the compressed air supply is switched off - it lies against a surface line of the inner circumferential wall of the gam channel, which crosses the outlet mouth 40 of the blow nozzle approximately diametrically, such that the multifilament yarn thereby rests on the edge 39 of the outlet mouth 40 of the blowing nozzle 21 such that it crosses this outlet mouth 40 approximately diametrically.
  • the gam channel is approximately 8 to 40 mm, preferably 10 to 30 mm long.
  • blowing nozzles 21 shown blow the compressed air jets into the yarn channels 20 at subsonic speed, which is or is preferably provided here. It is also conceivable that the blowing nozzles can be designed as Laval nozzles, which can blow the compressed air jets into the yarn channels at supersonic speed.

Abstract

Un dispositif (10) de torsion de fils à brins multiples comprend un canal (20) de fil et des guides-fils (15, 16) agencés à une certaine distance de l'entrée et de la sortie du canal de fil de façon à presser le fil sur le canal de fil, lorsque l'amenée d'air comprimée est interrompue, de telle sorte que le fil s'étende dans le canal de fil parallèlement au sens longitudinal de ce dernier et que les parties droites du fil entre l'entrée et la sortie du canal du fil d'une part et les guides-fils d'autre part forment un angle aigu par rapport aux parties de l'axe longitudinal géométrique du canal de fil (20) situées à l'extérieur du canal de fil. En outre, l'angle de soufflage de l'ajutage souffleur est inférieur à 90°. La longueur du canal de fil (20) ne dépasse pas 40 mm dans le cas de fils unis, et 30 mm dans le cas de fils texturés. L'écart entre les guides-fils (15, 16) et le canal de fil (20) est égal à 30 mm au maximum. On obtient des vitesses d'avancement du fil particulièrement élevées et une excellente torsion du fil.

Claims (24)

1. Dispositif de tourbillonnement (10) pour imprimer des tourbillons à des fils multifilaments, de préférence des fils multifilaments texturés, présentant au moins un canal de passage des fils (20) à distance des embouchures d'entrée et de sortie (31, 32) duquel sont installés des guide-fils (15, 16), canal dans lequel débouche au moins une buse soufflante (21) ou élément similaire, en vue d'insuffler un courant d'air comprimé projeté qui sert à la solidarisation mutuelle tourbillonnaire des filaments parcourant respectivement le canal de passage des fils, caractérisé par le fait que les guide-fils (15, 16) sont disposés de façon qu'ils engagent le fil a l'état tendu sur le canal (20) de passage des fils, lorsque la délivrance d'air comprimé est mise a l'arrêt, de telle sorte qu'il s'étende, dans ce canal, parallèlement à la direction longitudinale de celui-ci, en étant alors appliqué contre le bord (39) de l'embouchure de sortie (40) de la buse soufflante (21) ou d'au moins une buse soufflante (21), et qu'il subisse respectivement une variation directionnelle de moins de 90° lorsqu'il pénètre dans le canal (20) de passage des fils, ou sort de ce canal ; par le fait que l'angle d'insuffiation (8) de la buse soufflante (21) est inférieur a 90° ; par le fait que la distance, comprise entre les guide-fils (15, 16) et les embouchures du canal de passage des fils qui leur sont voisines, mesure au maximum 30 mm ; et par le fait que la longueur du canal (20) de passage des fils est au maximum de 40 mm en présence de fils multifilaments non texturés, et au maximum de 30 mm en présence de fils multifilaments texturés.
2. Dispositif selon la revendication 1, caractérisé par le fait que, en service, les guide-fils (15, 16) sont disposés à des distances de 3 à 25 mm, de préférence de 5 à 15 mm par rapport à l'embouchure (31, 32) du canal de passage des fils qui leur est respectivement voisine ; etlou par le fait que ces guide-fils (15,16) sont installés avec position réglable.
3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que les guide-fils (15, 16) sont installés sur des supports qui présentent des évidements pour les courants d'air comprimé projetés sortant du canal (20) de passage des fils.
4. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que les guide-fils sont disposés de façon que les variations directionnelles (a, β), que le fil-mesuré a l'état tendu, lorsque la délivrance d'air comprimé est mise a l'arrét―subit respectivement lorsqu'il pénètre dans le canal (20) de passage des fils, et en sort, mesurent au moins 8°, de préférence de 15 a 25° en présence de fils texturés, et au maximum 15°, de préférence d'approximativement 1 a 10° en présence de fils lisses ; etlou par le fait que les guide-fils occupent des positions réglables en vue du réglage des variations directionnelles respectives du fil lorsqu'il pénètre dans le canal de passage des fils, et en sort
5. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que les variations directionnelles (a, β), que le fil - mesuré a l'état tendu, lorsque la délivrance d'air comprimé est mise a l'arrét- subit respectivement lorsqu'il pénètre dans le canal (20) de passage des fils et en sort, sont au maximum de 40° et/ou au moins de 10° en présence de fils multifilaments texturés.
6. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que les guide-fils (15, 16) sont installés sur le carter (11) de ce dispositif de tourbillonnement (10).
7. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que le canal (20) de passage des fils est formé, associativement, par une partie inférieure (12) et par une partie supérieure (13) du carter (11) du dispositif de tourbillonnement, pouvant être soulevée a l'écart de cette partie, en vue d'ouvrir le canal de passage des fils sur toute la longueur de ce canal, l'espace interne dudit canal étant formé par une rainure rectiligne pratiquée dans la partie inférieure (12) et/ou par une rainure rectiligne ménagée dans la partie supérieure (13).
8. Dispositif selon la revendication 7, caractérisé par le fait que la partie supérieure (13) est réalisée sous la forme d'un couvercle rabattable articulé, à pivotement, sur la partie inférieure (12).
9. Dispositif selon la revendication 6 et la revendication 7 ou 8, caractérisé par le fait que les guide-fils (15, 16) sont reliés rigidement à la partie supérieure (13).
10. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que l'angle d'insufflation (8) de la buse soufflante mesure d'approximativement 60 à 89°, de préférence d'approximativement 75 a 85°
11. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que, en vue de guider le fil multifilaments (19), les guide-fils (15, 16) présentent des étriers qui sont ouverts vers le bas, sont retenus au moyen de supports sur le dispositif de tourbillonnement, et sont de préférence disposés de manière qu'ils puissent engager le fil multifilaments sur la région du canal (20) de passage des fils qui est située sur la partie inférieure (12).
12. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que l'axe longitudinal (22) de la buse soufflante (21) coupe l'axe longitudinal du canal associé (20) de passage des fils.
13. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que la section interne du canal (20) de passage des fils est approximativement semi-circulaire et est formée, de préférence, par une rainure (26) qui est ménagée dans la partie inférieure (12) et est délimitée, en partie haute, par l'intermédiaire d'un capot aplati (29) du canal de passage des fils, formé par la partie supérieure (13).
14. Dispositif selon l'une des revendications précédentes, caractérisé par le fait qu'au moins une surface (42, 43) directrice d'air se trouve à l'extérieur du canal de passage des fils, à distance de son embouchure d'entrée (31) et/ou de son embouchure de sortie (32), en vue de dévier, a l'écart du trajet de défilement du fil, le ou les courant(s) d'air comprimé projeté(s) sortant du canal (20) de passage des fils.
15. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que la buse soufflante (21) débouche, dans le canal (20) de passage des fils, en regard d'un capot approximativement aplati (29) de ce canal, de telle sorte que sa direction d'insufflation soit orientée vers ce capot du canal de passage des fils.
16. Dispositif selon l'une des revendications précédentes, caractérisé par ie fait que la longueur du canal (20) de passage des fils est comprise entre environ 8 et 40 mm, de préférence entre 10 et 30 mm.
17. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que la buse soufflante (21) est implantée à des distances approximativement identiques par rapport aux embouchures d'entrée et de sortie (31, 32) du canal (20) de passage des fils.
18. Dispositif selon l'une des revendications précédentes, caractérisé par le fait qu'une seule et unique buse soufflante (21) est associée au canal (20) de passage des fils.
19. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que le canal (20) de passage des fils est rectiligne et/ou présente une section approximativement constante sur sa longueur et/ou possède une section ronde.
20. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que le canal (20) de passage des fils possède une section non ronde, de préférence approximativement semi-circulaire.
21. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que les guide-fils (15, 16) sont disposés de façon que les variations directionnelles (a, β), que ces guide-fils (15, 16) imposent respectivement au fil lorsqu'il pénètre dans le canal (20) de passage des fils et en sort- mesuré a l'état tendu, lorsque la délivrance d'air comprimé est mise a l'arrêt-, soient plus grandes que les angles de propagation (ϕ), voisins de ces variations, des courants d'air comprimé projetés sortant du canal de passage des fils, lorsque la délivrance d'air comprimé est en fonction.
22. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que la distance (h), comprise entre le bord (39) de l'embouchure de sortie (40) de la buse soufflante (21) et la surface de cloisonnement (29) du canal (20) de passage des fils, opposée a cette embouchure de sortie, mesure au maximum 6 mm, de préférence au maximum 2 mm dans le plan géométrique médian longitudinal (41) du canal (20) de passage des fils, matérialisant la bissectrice de l'embouchure de sortie (40) de la buse soufflante (21) ; et/ou par le fait que, dans ce plan de section transversale, le rapport entre cette distance (h) et la largeur maximale (bmax) du canal (20) de passage des fils, mesurée perpendiculairement à ladite distance, est au maximum de 1,0, de préférence au maximum de 0,9, optimalement au maximum de 0,6 et/ou au minimum de 0,3, de préférence au minimum de 0,4.
23. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que le fil multifilaments est guidé de manière à être appliqué - à l'état tendu, lorsque la délivrance d'air comprimé est mise à l'arrêt - sur une génératrice de la paroi interne du canal (20) de passage des fils, traversant a peu près diamétralement l'embouchure de sortie (40) de la buse soufflante, de telle sorte que ce fil multifilaments repose alors sur le bord (39) de l'embouchure de sortie (40) de la buse soufflante (21), afin qu'il traverse à peu près diamétralement cette embouchure de sortie.
24. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que la buse soufflante (21) est formée par un perçage rectiligne présentant, sur sa longueur, une section constante ou variable.
EP87905447A 1987-08-15 1987-08-15 Dispositif de torsion de fils Expired - Lifetime EP0326552B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1987/000453 WO1989001539A1 (fr) 1987-08-15 1987-08-15 Dispositif de torsion de fils

Publications (2)

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EP0326552A1 EP0326552A1 (fr) 1989-08-09
EP0326552B1 true EP0326552B1 (fr) 1991-09-25

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EP (1) EP0326552B1 (fr)
WO (1) WO1989001539A1 (fr)

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DE4115368C2 (de) * 1991-05-10 2002-01-24 Temco Textilmaschkomponent Verwirbelungsvorrichtung mit einer Düse
DE59201194D1 (de) * 1991-10-26 1995-02-23 Barmag Barmer Maschf Vorrichtung zum Stauchkräuseln synthetischer Filamentfäden.
WO1994009336A1 (fr) † 1992-10-13 1994-04-28 Allied-Signal Inc. Fil enchevetre a haute resistance
IT1274759B (it) * 1994-09-06 1997-07-24 Vito Ballarati Metodo per ottenere un filato multibave stirato durante la fase di interlacciatura a partire da filati termoplatici parzialmente orientati
US5632139A (en) * 1996-04-03 1997-05-27 Southridge Corporation Yarn commingling apparatus and method
DE19745182C2 (de) * 1997-10-13 2000-05-18 Inst Textil & Faserforschung Verfahren und Vorrichtung zum Verwirbeln von Multifilamentgarnen
US6052878A (en) * 1999-05-28 2000-04-25 E. I. Du Pont De Nemours And Company Methods and apparatus for interlacing filaments and methods of making the apparatus
DE19924736A1 (de) * 1999-05-31 2000-12-07 Temco Textilmaschkomponent Verwirbelungsvorrichtung
KR101962601B1 (ko) * 2012-02-20 2019-03-28 데이진 아라미드 비.브이. 얀을 얽히게 하는 방법 및 장치
DE102013101988A1 (de) * 2013-02-28 2014-08-28 Maschinenfabrik Rieter Ag Spinnstelle zur Herstellung eines Garns

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US3574249A (en) * 1969-07-14 1971-04-13 Du Pont Threadline treating apparatus
US4069565A (en) * 1974-11-28 1978-01-24 Toray Industries, Inc. Process and apparatus for producing textured multifilament yarn
US3971108A (en) * 1975-03-31 1976-07-27 E. I. Du Pont De Nemours & Company Set apparatus for treating yarn and process for stringup thereof
US4011640A (en) * 1975-10-20 1977-03-15 Milliken Research Corporation Yarn entanglement nozzle
US4125922A (en) * 1977-09-22 1978-11-21 Techniservice Division, Textured Yarn Co. Inc. Jet tangler
IT1113173B (it) * 1978-04-28 1986-01-20 Snia Viscosa Procedimento e dispositivo per il coesionamento di filati multibava
US4245378A (en) * 1979-09-24 1981-01-20 Enterprise Machine And Development Corp. Air jet for interlacing multifilament yarn
US4644620A (en) * 1982-12-03 1987-02-24 Murata Kikai Kabushiki Kaisha Draw texturing and entanglement apparatus for yarn

Also Published As

Publication number Publication date
WO1989001539A1 (fr) 1989-02-23
US4965916A (en) 1990-10-30
EP0326552A1 (fr) 1989-08-09

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