WO1999019549A2 - Garnverwirbelungsvorrichtung - Google Patents
Garnverwirbelungsvorrichtung Download PDFInfo
- Publication number
- WO1999019549A2 WO1999019549A2 PCT/DE1998/002998 DE9802998W WO9919549A2 WO 1999019549 A2 WO1999019549 A2 WO 1999019549A2 DE 9802998 W DE9802998 W DE 9802998W WO 9919549 A2 WO9919549 A2 WO 9919549A2
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- WIPO (PCT)
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- section
- opening cross
- yarn
- main
- stream
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Classifications
-
- 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
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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
Definitions
- the invention relates to a intermingling device for intermingling multifilament yarns according to the preamble of claim 1 and a method for intermingling at least one multifilament yarn according to the preamble of claim 18.
- Swirling devices and methods of the type mentioned here are known from DE 37 11 759 C2. They serve to improve the cohesion of the filaments of the multifilament yarn and thus its further processability, since the individual multifilament yarn, when it is fed to the interlacing device, is still untwisted or has only a slight protective twist, which still does not have sufficient cohesion of its preferably thermoplastic or other Materials existing filaments for further processing results.
- the multifilament yarn only gets the necessary cohesion through the interlacing of its filaments.
- the filaments of several multifilament yarns can also be interlaced together to form a multifilament yarn.
- the intermingling quality / the intermingling result is characterized by intermingling points, that is to say the intermingling / interlacing of the filaments, and the interstices between the intermingling points, in which there are essentially non-intermingled, that is to say open yarn sites.
- intermingling points that is to say the intermingling / interlacing of the filaments
- interstices between the intermingling points in which there are essentially non-intermingled, that is to say open yarn sites.
- the known interlacing device has a yarn channel through which the multi-filament yarn having a number of filaments is guided.
- the filaments are swirled by means of a compressed air stream emerging from an opening cross section of a blowing nozzle.
- the blowing nozzle usually has a circular or elliptical opening cross section, which is designed symmetrically to the longitudinal center axis of the gam channel.
- the interlacing device has the disadvantage that the interlacing of the filaments of the multifilament yarn does not lead to a desired interlacing result in all cases.
- the multifilament yarn has irregularities, in some cases longer imperfections, that is to say non-intermingled yarn spots, which in the further processing of the multifilament yarn, for example weaving, tufting, knitting, knitting, sewing, leads to these open, unprotected yarn spots being damaged. Individual filaments break and slide open, causing a thread break or the break of neighboring threads and / or defects in textile fabrics.
- CH-PS 415 939 it is known to give the media feed lines a circular cross section or any other suitable shape, such as a rectangle, oval shape or the like.
- the present invention relates to a nozzle channel opening, the shape of which depends on the medium, in particular compressed air, in the form of a main stream in the middle. ren and area in pairs flows in the edge areas of the yarn channel. Such a teaching is also not indicated in this CH-PS.
- the main stream flowing into the yarn channel is divided into two, at least essentially equally strong, partial stream vortices which cause the filaments to be entangled.
- the side streams flowing into an edge region of the gam channel surprisingly support the swirling by means of the same direction and ensure that the filaments are only briefly in the edge regions (dead zones) in which practically no swirling takes place, but are repeatedly exposed to the main air flow. As a result, the number of unwired, open yarn spots is reduced and the lengths of these missing spots are shortened.
- the medium consumption, and thus the costs of the swirling can be reduced with a preferably constant swirling result. Furthermore, there is an increase in the production speed, that is to say the running speed of the filaments, and thus the economy of the interlacing device, with a satisfactory interlacing quality.
- the medium flow By “dividing" the medium flow is to be understood that the main flow and the secondary flows do not have to be physically separate.
- the division into main and secondary flows can also be done by designing the cross section of the nozzle.
- the opening cross section of the secondary flow is separated from the opening cross section of the main flow.
- the medium flow is thus divided into several separate partial flows, which are at a distance from one another at least when flowing into the yarn channel.
- the blower nozzle arrangement has only one blower nozzle according to the first embodiment variant and at least two blower nozzles according to the second embodiment variant, the at least two blower nozzles causing the physical separation of the partial streams of the medium flow.
- the opening cross section is formed by a blowing nozzle.
- the manufacture of the opening cross section and, on the other hand, the medium supply, which supplies the blowing nozzle with a medium under pressure, preferably compressed air, can be easily implemented.
- the opening cross section may also be necessary for the opening cross section to be formed by a plurality, preferably two or three, of blowing nozzles, from each of which a partial flow of the medium flow flows out.
- This provides greater flexibility and independence in the arrangement of the main flow and the secondary flows with respect to one another, as well as their targeted inflow into the central region or the edge regions of the yarn channel, also with regard to different blowing air pressures.
- an exemplary embodiment of the intermingling device is preferred, which is characterized in that the main stream - viewed in the running direction of the filaments - is arranged downstream of the secondary streams.
- the side streams flowing into the edge areas capture the filaments passed through the yarn channel and transport them into the middle area of the yarn channel in which the filaments are subsequently swirled by the main stream.
- thick and long swirling points / knots can be formed which are highly uniform.
- the main stream - viewed in the running direction of the filaments - is arranged upstream, it has been shown that generally shorter and thinner swirling points are formed as a result, with a higher swirling frequency being achieved at the same time.
- the interlacing frequency is also influenced - apart from the multifilament yarn itself - by the thread speed during interlacing, the thread tension set and the fineness and structure of the filaments, which are smooth or crimped.
- the object is also achieved by a method which has the features mentioned in claim 18. Because the medium stream is set up in a main stream and in pairs of side streams, which are directed essentially in the same direction, the main stream is more effective in the central region of the yarn channel, while the side streams in the two edge regions remain too long ineffective for the swirling Prevent areas. Strong swirl points are created and defects are avoided.
- the inventive interaction of the main flow and the secondary flows achieves a high swirl quality with a low medium consumption.
- Figure 1 is a side view of an embodiment of a swirling device
- Figure 2 is a schematic plan view of a yarn channel
- Figures each show a top view of an opening cross section 3 to 15 of a first embodiment variant of the blower nozzle arrangement according to the invention, in which main and secondary flows are generated by the design of the cross section of a blower nozzle;
- Figures each a top view of the opening cross section 16 to 19 section of a second embodiment variant of the blower nozzle arrangement, in which the main and secondary flows are physically separated;
- Figures each show a top view of the opening cross section 20 and 21 of a further embodiment variant of the blower nozzle arrangement with two main streams;
- Figure 22 is a sectional view of the yarn channel
- Figure 23 is a schematic cross section of the swirling device.
- multifilament yarns are understood to mean both smooth and crimped multifilament yarns.
- the crimped multifilament yarns are produced, for example, by false twist, stuffer box, edge drawing texturing.
- the multifilament yarn consists of a number of filaments, which preferably consist of thermoplastic materials, for example polyamides, polyester, polypropylene, polyethylene, but also of viscose, glass, Kevlar, carbon or other high-modulus fibers.
- thermoplastic materials for example polyamides, polyester, polypropylene, polyethylene, but also of viscose, glass, Kevlar, carbon or other high-modulus fibers.
- the interlacing device it is also possible to intertwine the filaments of several multifilament yarns together to form one multifilament yarn.
- fancy yarns can also be produced, as well as blends of multifilament yarns with fiber yarns or elastane yarns.
- the interlacing device can be used, for example, on texturing machines or else on other machines or systems, for example on spinning, drawing twine or winding machines.
- the multifilament yarns intermingled by means of the interlacing device are further processed on weaving, knitting, knitting, tufting machines and similar textile machines for the production of textile fabrics, without the need for aftertreatment of the multifilament yarns, such as twisting, twisting, sizing and the like, in order to produce the required thread closure .
- FIG. 1 schematically shows a side view of an exemplary embodiment of a swirling device 1, which comprises a housing 3, which here has a plurality of, in total two, housing parts 5 and 25.
- the second housing part 25 is pivotally connected to the first housing part 5 by means of a hinge 9 via a swivel arm 7 and thus forms a cover.
- a handle 11 fastened to the second housing part 25 the second housing part 25 can be folded up from its closed position shown by solid lines into its open position shown in dashed lines in FIG.
- the interlacing device 1 further comprises a straight yarn channel 13 which penetrates the housing 3 and is formed by the housing parts 5, 25.
- the yarn ⁇ channel 13 is circumferentially closed, with the exception of the opening cross-section of a Blasdusenan extract not shown, and only at its inlet orifice and its outlet orifice open.
- the second housing part 25 is folded up so that the yarn channel 13 is exposed along its entire length.
- the blower nozzle arrangement is connected via a feed line 14 to a medium supply, by means of which the blower nozzle arrangement can be acted upon by a pressurized medium, preferably air.
- a pressurized medium preferably air.
- a U-shaped bracket 15 serving as a rigid support is attached to the second housing part 25, and a yarn guide 19 is attached to the angled arms of which only the arm 17 can be seen in FIG. 1. Seen in the vertical direction, these are formed by U-shaped brackets which are open at the bottom and have guide surfaces 21 on the upper edges of their interior spaces which are open at the bottom for deflecting the multifilament yarn.
- the yarn channel 13 is incorporated into the first housing part 5 in the form of a groove which has a semicircular, clear cross section which is constant over its length.
- the cover 23 of the yarn channel 13 is formed by the flat underside of a second housing part 25 fastened to the swivel arm 7.
- the cross-sectional shape of the yarn channel 13 can also be designed differently.
- Figure 2 shows schematically a plan view of the first housing part 5 of the interlacing device 1, in which the yarn channel 13 is incorporated.
- the yarn channel 13 is incorporated.
- the edge regions 33 are also referred to as dead zones.
- the opening cross section 37 of the blower nozzle arrangement shown in FIG. 2 is formed in such a way that the medium stream flowing into the yarn channel 13 is divided into a main stream and two secondary streams.
- the main flow H flows into the central, central region 29 and, due to the impact against the underside of the housing part or cover 25, divides into two partial flow vortices with different directions of rotation (FIG. 23), which bring about the desired local twists / entanglements of the filaments of the multifilament yarn.
- the filament twists produced can have different local patterns, for example braid or cable pattern.
- the two side streams N which practically do not contribute to the actual intermingling of the filaments, each flow into one of the edge regions 33 and guide the filaments guided in the edge regions 33 into the central region 29 of the yarn channel 13, where they are caught and swirled by the main stream H. .
- the length of time in which the filaments in the edge regions 33 are guided through the yarn channel 13 is reduced, so that non-entangled, open yarn spots are avoided, or at least reduced.
- the multifilament yarn is fundamentally structured, that is to say that the multifilament yarn is also optically changed by the intermingling.
- FIGS. 3 to 15 each show a top view of an exemplary embodiment of the blowing nozzle 37 which opens perpendicularly into the yarn channel 13.
- the multifilament yarn, not shown, passes through the yarn channel 13 in the direction of an arrow 27, that is to say from right to left as shown in FIGS. 3 to 15.
- FIG. 3 shows a blow nozzle 37a, the opening cross section of which is symmetrical to the longitudinal central axis 26 of the yarn channel 13 and to a transverse axis 41 which encloses a right angle, that is to say an angle of 90 °, with the longitudinal central axis 26.
- the intersection between the longitudinal center axis 26 and the orthogonal on this transverse axis 41 lies - seen transversely to the longitudinal extent of the Ga channel 13 - in or - according to another, not shown embodiment - approximately in the middle of the yarn channel 13.
- the opening cross section of the blow nozzle 37a is essentially cruciform.
- One imaginary bar of the cross lies on the longitudinal central axis 26 and the other imaginary bar on the transverse axis 41.
- connection areas of the imaginary bars are rounded in such a way that the partial opening cross sections of the blowing nozzle 37a, which extend into the edge areas 33 of the gam channel 13, are smaller than the partial opening cross section of the blowing nozzle 37a located in the central region 29.
- the partial opening cross sections which differ in size with respect to the running direction of the multifilament yarn, the medium stream flowing into the yarn channel 13 through the opening cross section is divided into the main stream H and the pair of secondary streams N.
- the main stream H defines the middle region.
- the cross sections for the main flow H are selected so that the main flow H always carries a larger volume flow of the medium with respect to each of the secondary flows N.
- the main stream H impinges on the underside of the cover 25 which delimits the yarn channel 13, as a result of which two partial flow vortices are created which swirl the filaments of the multifilament yarn.
- the side streams N flowing into the edge regions 33 of the gam channel 13 ensure that the filaments guided into the edge regions by swirling get back into the middle region 29 as quickly as possible. This reduces the time in which the filaments are located in the edge region in which there is practically no swirling.
- a very good interlacing result is achieved by reducing the number of non-interlaced open yarn spots and shortening the lengths of these missing stones.
- FIG. 4 shows a blow nozzle 37b, the opening cross section of which is essentially V-shaped, a reinforcement 61 of the main stream H being provided between the legs or arms of the V-shape.
- This essentially changes the V shape to a W shape, which together with a triangle forms the opening cross section.
- the arms of the V-shape or the W-shape also extend here into the edge regions 33 of the yarn channel 13.
- FIG. 5 shows a blow nozzle 37c which has an essentially cross-shaped or X-shaped opening cross section.
- the lying X has one on the longitudinal central axis 26 of the
- the central channel 45 lies on the gam channel 13 and carries the main stream H and is wider than the transverse beams 47 and 49 which extend into the edge areas 33 and which carry the secondary streams H there.
- the blowing nozzle 37c is formed symmetrically to the longitudinal central axis 26 and the transverse axis 41.
- the secondary flows flowing out of the crossbeams 47, 49 of the cross-shaped opening cross section each have a smaller volume flow than that from the central region of the opening cross section, that is to say the main flow flowing out of the partial opening cross section formed by the central jet 45.
- the blow nozzle 37d shown in FIG. 6 has a triangular opening cross section and is arranged in the yarn channel 13 such that a tip 51 formed by two sides of the triangle here on the same side lies on the longitudinal central axis 26 of the yarn channel 13.
- the blow nozzle 37d is formed symmetrically to the longitudinal central axis 26.
- the multifilament yarn guided in the direction of arrow 27 through the yarn channel 13 first encounters the main stream H emerging in the area of the tip 51 of the opening cross-section, which becomes increasingly larger, and then the secondary streams emerging from the area of the tips 51 'and 51'' of the triangular opening cross-section. It has been shown that a higher swirl frequency can be achieved if the secondary flows N extend further into the edge regions 33 of the yarn channel 13.
- the higher swirl frequency comes about because the Swirling points turn out to be shorter than those which are generated by means of a blowing nozzle, in which the parts of the opening cross section which generate the secondary flows N reach less into the edge regions.
- the blow nozzle 37e shown in FIG. 7 also has a triangular opening cross section, its tip 53, which lies on the longitudinal central axis 26 and is formed from two sides of the wide, isosceles triangle, the main flow flowing out of the central region of the opening cross section of the blow nozzle 37e in the direction of travel of the multifila - seen yarn (arrow 27) - is subordinate.
- the multi-filament yarn is therefore first guided over the wide base of the triangle.
- the opening cross section of the blowing nozzle 37e is - as in all other exemplary embodiments of the blowing nozzle according to the invention - symmetrical to the longitudinal central axis 26.
- FIG. 8 shows a blow nozzle 37f which has a triangular opening cross section, the triangle being isosceles and very narrow compared to the triangles shown in FIGS. 6 and 7.
- the center of the opening cross section of the blowing nozzle 37f is very pronounced, in particular with respect to the edge zones of the opening cross section which protrude into the edge regions 33 of the yarn channel 13. This results in a strong main flow compared to the secondary flow pair.
- the tip 55 formed by the sides of the isosceles triangle lies on the longitudinal central axis 26 in such a way that the multifilament yarn passed through the yarn channel 13 is first caught by the main stream, but at the same time the paired bypass stream is effective, which is in the range from the base of the isosceles triangle opening cross-section flows into the edge regions 33 of the gam channel 13.
- FIG. 9 shows a blow nozzle 37g, which has a T-shaped opening cross section, the partial opening cross section formed by the crossbar 57 of the T-shape preceding the partial opening cross section formed by the longitudinal bar 59 of the T-shape, as seen in the running direction of the multifilament yarn (arrow 27) is.
- the crossbar 57 which is narrower than the longitudinal beam 59, extends into the edge regions 33 of the gam channel 13.
- the incoming multifilament yarn thus first reaches the "wide" side of the T-shaped opening cross section, in which the main and secondary flow act. This has the effect that a more uniform interlacing takes place, since at the same time the bypass pair prevents the multifilament yarn from escaping into the dead zones 33 by the bypass pair.
- FIG. 10 shows a blowing nozzle 37h, the opening cross section of which has a Y-shape, the essentially V-shaped part of the Y-shape being arranged upstream of the part formed by a straight bar — viewed in the direction of travel of the multifilament yarn (arrow 27).
- the ends of the V-shaped part of the Y-shape extend far into the edge zones 33 of the thread channel 13.
- the filaments of the multifilament yarn passed through the thread channel 13 in the edge regions 33 become those that exit from the V-shaped part of the opening cross section of the blow nozzle 37h Secondary flows are first detected and passed into the central region 29 of the yarn channel 13.
- the blow nozzle 37i shown in FIG. 11 differs from the blow nozzle 37h shown in FIG. 10 only in that the Y-shape of the opening cross-sectional area is changed.
- the legs of the Y-shape, which together form a V-shape, have an oblique course, so that they do not extend as far into the edge regions 33 of the yarn channel 33 as the legs of the Y-shaped opening cross section shown in FIG.
- FIG. 12 shows a blowing nozzle 37k which has an opening cross section which is derived from a third embodiment variant of a Y shape.
- the longitudinal bar of the Y shape which is formed symmetrically to the longitudinal central axis 26, is wider than the Y shapes shown in FIGS. 10 and 11. Furthermore, the free end of the longitudinal bar is relatively short and wedge-shaped.
- the blow nozzle 371 shown in FIG. 13 has a fish-shaped opening cross section which is derived from an ellipse and two legs which form a V shape. The two legs extend into the edge regions 33 of the yarn channel 13 . while the ellipse lies with its large semiaxis on the longitudinal central axis 26 of the yarn channel 13 and thus forms the main stream.
- FIG. 14 shows a blow nozzle 37m which has an opening cross section with a curved V-shape.
- “Swung” is understood to mean that the legs of the V-shape are not straight, but rather have a curvature or are curved.
- all corners of the opening cross section of the blow nozzle 37m are rounded or have - according to a further embodiment, not shown - a radius.
- the opening cross section is widened in the central region 29 of the yarn channel 13. Since in this embodiment the legs protrude far into the edge areas, the filaments are quickly conveyed out of the dead zones.
- the blow nozzle 37n shown in FIG. 15 has an opening cross section which is essentially derived from a triangle and which has two arms which are oriented in a V-shape and which extend into the edge regions 33 of the yarn channel 13.
- FIGS. 16 to 19 each show a top view of the opening cross section of a further embodiment variant with a blower nozzle arrangement 35, in which the opening cross section is formed by a plurality, here in each case a total of three, of blowing nozzles 37/1, 37/2, 37/3. These open into the yarn channel 13 at a distance from one another and each have a partial opening cross section, which together form the opening cross section of the blower nozzle arrangement 35.
- the partial opening cross section of the blowing nozzle 37/1, from which the main flow of the medium flow flows into the yarn channel 13, is larger than that of the blowing nozzles 37/2 and 37/3, from which the secondary flows of the medium flow emerge.
- the opening cross section of all the exemplary embodiments — with a viewing direction in the direction of the axis of the blowing channel opening into the yarn channel — is symmetrical to the longitudinal central axis 26 of the yarn channel 13.
- the partial opening cross sections of the blow nozzles 37/1 to 37/3 shown in FIG. 16 are circular.
- the blowing nozzles 37/2 and 37/3, from each of which a secondary flow flows into the yarn channel 13 are seen in the direction of the multifilament yarn (arrow 27) - the blow nozzle 37/1 upstream.
- the blowing nozzles 37/2, 37/3 each lie in one of the edge regions 33 of the yarn channel 13.
- the exemplary embodiment of the blower nozzle arrangement 35 shown in FIG. 17 differs from that in FIG. 16 exemplary embodiment shown merely in that the partial opening cross sections of the blowing nozzles 37/1 to 37/3 are elliptical.
- the large semiaxis of the ellipse forming the partial opening cross section of the blowing nozzle 37/1 lies on the longitudinal central axis 26.
- FIG. 18 shows an exemplary embodiment of the blower nozzle arrangement 35, in which the opening cross section is formed by one triangular and two elliptical partial opening cross sections.
- the blowing nozzle 37/1 which has a triangular partial opening cross section, is - as seen in the direction of travel of the multifilament yarn (arrow 27) - arranged upstream of the blowing nozzles 37/2, 37/3, such that one side of the partial opening cross section is parallel to the transverse axis 41.
- the multifilament yarn guided through the yarn channel 13 is guided first via this side, so that the main flow and a secondary flow pair come into effect at the same time.
- the embodiment of the blower nozzle arrangement 35 shown in FIG. 19 comprises two blower nozzles 37/2, 37/3, the partial opening cross sections of which are elliptical and a blower nozzle 37/1, the partial opening cross section of which has a V-shape with a central extension 65.
- the blow nozzles 37/2 and 37/3, from each of which a bypass flow of the medium flow flows into the yarn channel 13, are arranged upstream of the blow nozzle 37/1 as seen in the direction of travel of the multifilament yarn, so that a bypass flow pair becomes effective first. Since the blow nozzle 37/1 extends with its partial opening cross-sections into the edge regions 33 of the yarn channel 13, a secondary flow pair then sets in almost simultaneously with the main flow.
- the partial opening cross sections of the blowing nozzles 37/1, 3 // 2, 37/3 together form the opening cross section of the blowing nozzle arrangement, the symmetry to the longitudinal central axis 26 of the yarn channel 13 is maintained.
- blowing nozzles from which the secondary flows of the medium flow flow into the yarn channel 13 are preferably arranged upstream of the blowing nozzle from which the main flow of the medium flow flows into the yarn channel 13. This means that the filaments of the multi-filament yarn are first grasped by the secondary streams in the edge regions 33 of the yarn channel 13 and only then swirled by the main stream flowing in the central area 29 of the yarn channel 13. In the exemplary embodiment according to FIG. 18, the filaments are caught by the main stream, but at the same time by the secondary streams.
- the downstream bypass pair of blow nozzles 37/2 and 37/3 reinforces the bypass effect without affecting the main flow.
- FIG. 20 shows a plan view of an exemplary embodiment of the blower nozzle arrangement 35, in which the opening cross section which is symmetrical with respect to the longitudinal central axis 26 is formed by a blower nozzle 37o.
- the opening cross section of the blow nozzle 37o is composed of two imaginary partial opening cross sections, the are interconnected.
- the first partial opening cross-section is essentially C-shaped and extends right up to the edges of the yarn channel 13.
- the width of the opening cross section is smaller than in the upstream and downstream areas.
- the main stream of the medium stream is divided into more than two, that is to say into at least three main sub-streams.
- the “division” is not to be understood physically, but takes place in particular through the configuration of the opening cross section, as realized, for example, in the embodiment shown in FIG.
- the filaments guided through the yarn channel 13 in the edge areas 33 are first passed from the secondary streams flowing out of the C-shaped partial opening cross section of the blowing nozzle 37o into the central area 29 of the yarn channel 13, where they are captured and swirled by the first main stream of the medium stream. This makes it possible to structure the filaments or the multi-filament yarn.
- FIG. 21 shows another embodiment variant of the blower nozzle arrangement 35 shown in FIG. 20, in which the opening cross section is formed by two blower nozzles 37/1 and 37/2.
- the partial opening cross section of the blowing nozzle 37/1 from which the main flow of the medium flow flows into the yarn channel 13, has a circular cross section.
- the essentially C-promoted The blowing nozzle 37/2 is immediately upstream of the blowing nozzle 37/1 and extends into the edge regions 33 of the gam channel 13.
- the two main flows are therefore physically separated from one another, that is to say the first main flow with the secondary flows and the second main flow become two blowing nozzles separated from one another are blown into the yarn duct 13.
- the blow nozzle 37o shown in FIG. 20 the main flow and the secondary flows flow together from one blow nozzle into the yarn channel 13.
- FIG. 22 shows a sectional view of an embodiment of the yarn channel 13 through which a multi-filament yarn 69 shown in broken lines is passed.
- a blowing nozzle 37 opens into the yarn channel 13, the opening cross section of which can be varied and can be formed, for example, by an opening cross section shown in FIGS. 3 to 21.
- the blowing nozzle 37 is inclined relative to the longitudinal central axis 26 of the yarn channel 13 by an angle ⁇ , which is measured between the axis 71 of the blowing nozzle 37 and the longitudinal central axis 26 of the yarn channel 13.
- the blowing nozzle 37 is inclined at an angle ⁇ with respect to the longitudinal central axis 26, which is in a range from 60 ° ⁇ _ ⁇ ⁇ 90 °, preferably from 75 ° ⁇ 87 °. It has been found that the swirling result can be additionally influenced by the defined inclination of the blowing nozzle 37.
- the angle ⁇ — as described above — is merely 90 ° purely by way of example.
- the main stream is introduced into the central region of the yarn channel and one of the side streams into one edge area and the other of the side streams into the other edge area of the yarn channel.
- Main and secondary flows are directed essentially in the same direction, so that their directions do not cross.
- a certain different direction of the media streams H and N is permissible, provided that these directions lie within the ranges 29 and 33 (FIG. 2).
- the main flow should generally carry the larger volume flow in relation to each of the two secondary flows.
- the time in which the filaments are located in the edge regions of the gam channel can be reduced by appropriately matching the size of the side streams with respect to the main stream, so that the result of the intermingling is thereby positively influenced. In this way, non-swirled open yarn spots can be limited to certain sizes.
- the number of knots, their size and strength can also be changed in a targeted manner.
- the width of the central area in which the actual swirling takes place and the remaining edge areas in which no swirling takes place are determined by the main flow.
- the swirl quality is improved by dividing the medium flow into several partial flows.
- the medium consumption can be reduced, preferably with the swirling result remaining the same, so that the swirling costs can be reduced.
- the effective interaction of the secondary flows with the main flow of the medium flow enables the running speed of the multifilament yarn and thus the productivity of the interlacing device to be increased.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Treatment Of Fiber Materials (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000516094A JP3656954B2 (ja) | 1997-10-13 | 1998-10-09 | ヤーンインターレース装置 |
EP98961002A EP1030938B1 (de) | 1997-10-13 | 1998-10-09 | Garnverwirbelungsvorrichtung und verfahren zum verwirbeln von multifilamentgarnen |
DE59803781T DE59803781D1 (de) | 1997-10-13 | 1998-10-09 | Garnverwirbelungsvorrichtung und verfahren zum verwirbeln von multifilamentgarnen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19745182A DE19745182C2 (de) | 1997-10-13 | 1997-10-13 | Verfahren und Vorrichtung zum Verwirbeln von Multifilamentgarnen |
DE19745182.9 | 1997-10-13 |
Publications (2)
Publication Number | Publication Date |
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WO1999019549A2 true WO1999019549A2 (de) | 1999-04-22 |
WO1999019549A3 WO1999019549A3 (de) | 1999-07-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/DE1998/002998 WO1999019549A2 (de) | 1997-10-13 | 1998-10-09 | Garnverwirbelungsvorrichtung |
Country Status (6)
Country | Link |
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US (1) | US6112386A (de) |
EP (1) | EP1030938B1 (de) |
JP (1) | JP3656954B2 (de) |
DE (2) | DE19745182C2 (de) |
TW (1) | TW494150B (de) |
WO (1) | WO1999019549A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003029539A1 (de) * | 2001-09-29 | 2003-04-10 | Heberlein Fibertechnology, Inc. | Verfahren und vorrichtung zur herstellung von kontengarn |
IT1393810B1 (it) * | 2009-04-29 | 2012-05-11 | Technores S R L C O Studio Minicucci Pidatella & A | Dispositivo per il trattamento di un filato, sistema di trattamento di un filato e metodo per il trattamento di un filato |
DE102012003410A1 (de) | 2012-02-23 | 2013-08-29 | Rpe Technologies Gmbh | Garnbehandlungsvorrichtung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4965916A (en) * | 1987-08-15 | 1990-10-30 | Deutsche Institute Fur Textil- Und Faserforschung Stuttgart Stiftung Des Offentlichenrechts | Means for the interlacing of yarn |
DE4113927A1 (de) * | 1991-04-29 | 1992-11-05 | Kugelfischer G Schaefer & Co | Verwirbelungsduese |
US5325572A (en) * | 1992-06-23 | 1994-07-05 | E. I. Du Pont De Nemours And Company | Yarn treating jet |
EP0625600A1 (de) * | 1993-05-11 | 1994-11-23 | Heberlein Maschinenfabrik AG | Vorrichtung zum Behandeln wenigstens eines laufenden Multifilamentgarns |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2985995A (en) * | 1960-11-08 | 1961-05-30 | Du Pont | Compact interlaced yarn |
US3262179A (en) * | 1964-12-01 | 1966-07-26 | Du Pont | Apparatus for interlacing multifilament yarn |
GB1127023A (en) * | 1965-03-08 | 1968-09-11 | Lepetit Spa | Process for preparing pyridoxine and derivatives thereof |
FR1556272A (de) * | 1967-11-30 | 1969-02-07 | ||
US3730413A (en) * | 1971-05-10 | 1973-05-01 | Ici Ltd | Interlacing jet |
DE2217109C3 (de) * | 1972-04-10 | 1979-04-12 | Hoechst Ag, 6000 Frankfurt | Verfahren und Vorrichtung zum Kräuseln von Fäden und Garnen |
US3751775A (en) * | 1972-06-07 | 1973-08-14 | Allied Chem | Apparatus and process for commingling multifilament yarn |
JPS5212362A (en) * | 1975-07-18 | 1977-01-29 | Toray Industries | Fluid treatment apparatus |
IT1093498B (it) * | 1977-03-30 | 1985-07-19 | Toray Industries | Metodo ed apparecchio per intreociare un filo a molti filamenti |
US4251904A (en) * | 1978-11-08 | 1981-02-24 | Toray Industries, Inc. | Yarn treating apparatus |
US4639986A (en) * | 1981-04-01 | 1987-02-03 | Phillips Petroleum Company | Filament jet entangler |
DE3711759C2 (de) * | 1986-04-08 | 1994-02-17 | Inst Textil & Faserforschung | Garnverwirbelungsvorrichtung |
KR100295537B1 (ko) * | 1992-09-04 | 2001-12-28 | 히라이 가쯔히꼬 | 사조의유체처리장치 |
-
1997
- 1997-10-13 DE DE19745182A patent/DE19745182C2/de not_active Expired - Fee Related
-
1998
- 1998-10-09 DE DE59803781T patent/DE59803781D1/de not_active Expired - Lifetime
- 1998-10-09 US US09/169,096 patent/US6112386A/en not_active Expired - Lifetime
- 1998-10-09 JP JP2000516094A patent/JP3656954B2/ja not_active Expired - Fee Related
- 1998-10-09 WO PCT/DE1998/002998 patent/WO1999019549A2/de active IP Right Grant
- 1998-10-09 EP EP98961002A patent/EP1030938B1/de not_active Expired - Lifetime
- 1998-10-12 TW TW087116863A patent/TW494150B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4965916A (en) * | 1987-08-15 | 1990-10-30 | Deutsche Institute Fur Textil- Und Faserforschung Stuttgart Stiftung Des Offentlichenrechts | Means for the interlacing of yarn |
DE4113927A1 (de) * | 1991-04-29 | 1992-11-05 | Kugelfischer G Schaefer & Co | Verwirbelungsduese |
US5325572A (en) * | 1992-06-23 | 1994-07-05 | E. I. Du Pont De Nemours And Company | Yarn treating jet |
EP0625600A1 (de) * | 1993-05-11 | 1994-11-23 | Heberlein Maschinenfabrik AG | Vorrichtung zum Behandeln wenigstens eines laufenden Multifilamentgarns |
Also Published As
Publication number | Publication date |
---|---|
US6112386A (en) | 2000-09-05 |
JP2001520325A (ja) | 2001-10-30 |
DE59803781D1 (de) | 2002-05-16 |
EP1030938A2 (de) | 2000-08-30 |
DE19745182C2 (de) | 2000-05-18 |
TW494150B (en) | 2002-07-11 |
WO1999019549A3 (de) | 1999-07-08 |
JP3656954B2 (ja) | 2005-06-08 |
DE19745182A1 (de) | 1999-04-15 |
EP1030938B1 (de) | 2002-04-10 |
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