EP2454403A2 - Métier à filer à jet d'air - Google Patents

Métier à filer à jet d'air

Info

Publication number
EP2454403A2
EP2454403A2 EP10734636A EP10734636A EP2454403A2 EP 2454403 A2 EP2454403 A2 EP 2454403A2 EP 10734636 A EP10734636 A EP 10734636A EP 10734636 A EP10734636 A EP 10734636A EP 2454403 A2 EP2454403 A2 EP 2454403A2
Authority
EP
European Patent Office
Prior art keywords
spindle
tip
nozzle body
air
spinning device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10734636A
Other languages
German (de)
English (en)
Other versions
EP2454403B1 (fr
Inventor
Petr Haska
Robert Mikyska
Christian Griesshammer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP2454403A2 publication Critical patent/EP2454403A2/fr
Application granted granted Critical
Publication of EP2454403B1 publication Critical patent/EP2454403B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist

Definitions

  • the invention relates to an air spinning device with a spindle according to the preamble of the independent claims.
  • a yarn spinning device or a roving spinning device is to be understood, wherein the proposed device for all spinning processes which work with air can be used.
  • a spinning device which serves to produce a yarn by means of an air flow comprises a sliver feed, a drafting device, an air-spinning device and a take-up device.
  • a sliver is fed from a fiber sliver storage presented to a drafting system.
  • the sliver is stretched under a certain delay and passed on to the air spinning device.
  • the stretched sliver is fed via a fiber guide element of a vortex zone.
  • the vortex zone is a
  • the vortex zone is arranged in a nozzle body in which the fiber guide element is inserted from one side and a spindle from the opposite side.
  • Compressed air is introduced into the vortex zone through boreholes arranged accordingly, which through the arrangement of the bores leads to the formation of a vortex, which is discharged outside along the spindle. Due to the turbulence of the introduced compressed air, a part of the fibers of the introduced into the air spinning device sliver is removed from the sliver and folded around the spindle tip around. The fiber ends are trapped in the non-dissolved fibers of the sliver and are drawn into the spindle with these so-called core fibers.
  • the Umwindemaschinen be wound around the core fibers due to the vortex flow.
  • the construction of the individual components and the settings of the airfoil can influence various properties of the spinning process. For example, the number of wraps compared to the core fibers may be changed, or the number of wraps per length or yarn twist of the finished yarn can be adjusted. Under the yarn twist is the angle to understand under which the Umwindemaschinen in relation to the longitudinal axis of the yarn wrap around the core fibers. In this way, it is possible to produce yarns with different properties in the air spinning process, for example, roving.
  • roving is meant an intermediate which is used as a starting material for final spinning processes, such as ring spinning or rotor spinning.
  • final spinning processes such as ring spinning or rotor spinning.
  • EP 2 009 150 A1 discloses an air-spinning device with a nozzle body and a hollow spindle.
  • the spindle protrudes with its spindle tip into the nozzle body.
  • an annular discharge channel is formed between the outer surface of the spindle tip and the inner surface of the nozzle body.
  • the discharge channel has a cylindrical shape and the distance between the inner surface of the nozzle body and the outer surface of the spindle is constant.
  • EP 2 009 150 A1 discloses a specific range for the dimension of the gap width and the inner diameter of the nozzle body. Apart from the dimensions of the spindle tip and the nozzle body and thus the definition of the discharge channel, the shape of the discharge channel is crucial for the behavior of the vortex air flow. Due to the cylindrical shape of the discharge channel, the fluidizing air can flow unhindered along the spindle tip. In this case, short fibers are detected by the flow and carried away from the spindle tip of the outflowing air.
  • a disadvantage of the disclosed air spinning device is also that the yarn twisting can be influenced only by a reduction of the swirling air, with the result that a reduction in the swirling air at the same time leads to a reduction in the number of binder fibers, while the amount of waste usually increases, because the fibers are less well integrated ,
  • the object of the invention is to avoid the disadvantages of the prior art and to provide an air spinning device which allows minimization of the departure and thus a better utilization of raw materials and simplifies adjustment of the yarn rotation.
  • an air spinning device with the characterizing features of the independent claims.
  • the object is achieved in that an air spinning device is provided with a nozzle body and a hollow spindle with a spindle tip and a longitudinal axis, wherein the spindle tip protrudes into the nozzle body and between a outer surface of the spindle tip and an inner surface of the nozzle body, a drain channel with a forms annular cross-sectional area and a normal to the longitudinal axis of the spindle seen gap width is constant at a certain point of the discharge channel over the circumference of the spindle.
  • the outer surface of the spindle tip and / or the inner surface of the nozzle body is shaped such that in the discharge channel in its course in the direction of the longitudinal axis of the spindle at least two bottlenecks in the discharge channel is formed, wherein the discharge channel in its course in the direction of the longitudinal axis of the spindle each of these constrictions has an annular cross-sectional area that is smaller than the annular cross-sectional area of the bleed passage before and after each of these at least two constrictions.
  • the invention is basically applicable to any air-spinning machine, irrespective of the type of yarn or roving to be produced, in which at least part of the fibers in the cross-section of the process product has a rotation and the machine therefore has an air-spinning device with a hollow spindle and a nozzle body.
  • air spinning devices which comprise a hollow guide spindle and a nozzle body.
  • a yarn guide channel is provided in the spindle, which opens with a spindle opening in the spindle tip.
  • a fiber sliver to be spun is introduced into the nozzle body via a fiber guide element arranged upstream of the spindle.
  • the spindle protrudes with its tip into the nozzle body, wherein a discharge channel with an annular cross-sectional area forms between an outer surface of the spindle tip and an inner surface of the nozzle body.
  • a vortex zone is formed between the fiber guide element and the spindle tip.
  • compressed air is injected into the vortex zone, which results in a vortex flow due to the arrangement of the holes.
  • the compressed air is removed from the vortex zone via the discharge channel, resulting in a rotating air flow along the spindle.
  • the fibers introduced into the air-spinning device by the fiber guiding element are divided by the turbulent flow into core fibers, sheath fibers and fibers, the core fibers being introduced directly into the spindle opening, the sheath fibers being trapped at one end in the core fibers and transferred at the other end via the spindle tip and the outlet is discharged from the air spinning device through the airflow passing the spindle.
  • the fibers placed around the spindle tip move helically around the spindle tip and form a so-called fiber sun.
  • the spindle tip is that region of the spindle in which the transferred fibers move. The removal of air beyond this area of the spindle has no direct influence on the movement of the fibers.
  • the number of Umwindemaschinen is determined by the distance of the spindle tip of a last terminal point of the sliver.
  • the sliver is passed before reaching the fiber guide element by a pair of rollers which forms a terminal point. Due to the length of the individual fibers, the distance between this clamping point and the spindle tip is selected. If the fiber length remains the same, the proportion of binder fibers increases with an increase in the distance between the clamping point and the spindle tip. However, this increase in the number of Umwindemaschinen simultaneously causes an increase in the departure. By a Narrowing of the discharge channel, the outlet can be reduced again, but this has a detrimental effect on the turbulence of Umwindemaschinen.
  • the drainage channel is designed in its geometric shape such that fibers located at the exit are caught by the wraparound fibers prior to deployment and introduced into the yarn or roving.
  • This has the advantage that the finish is reduced without affecting the turbulence of the Umwindemaschinen.
  • the shape of the discharge channel changes the circulation of the fibers around the spindle tip. Viewed along the length of the fibers, individual sections of the fibers are subject to accelerations, decelerations or swirls in their rotating helical motion due to the design of the bleed channel. The nature of the movements made by the fibers around the spindle tip also affects the yarn twist. By reducing the rotational speed results in a lower rotation, the air and flow conditions in the vortex zone must not be changed, for example by reducing the fluidizing air.
  • the air spinning device comprises a nozzle body and a hollow spindle with a spindle tip and a longitudinal axis, wherein the spindle tip protrudes into the nozzle body and forms an outlet channel with an annular cross-sectional area between an outer surface of the spindle tip and an inner surface of the nozzle body.
  • a gap width seen normal to the longitudinal axis of the spindle at a certain point of the discharge channel is constant over the circumference of the spindle.
  • the outer surface of the spindle tip is shaped such that in the discharge channel in its course in the direction of the longitudinal axis of the spindle at least two bottlenecks are formed, wherein the discharge channel in its course in the direction of the longitudinal axis of the spindle at each of these bottlenecks has an annular cross-sectional area, the smaller is as the annular cross-sectional area of the discharge channel before and after each of these at least two bottlenecks.
  • the inner surface of the nozzle body is cylindrically shaped, so that the circumference of the spindle at each point of the outlet channel results in the same gap width and an annular cross section is formed.
  • the created bottlenecks in the discharge channel influence the flow pattern of the discharging fluidized air.
  • the bottlenecks create a change in the swirling the outflow of air.
  • the speed of the outflowing air is influenced by the bottlenecks. The speed is reduced before a constriction, increased by the narrowing of the discharge channel and reduced again by the subsequent expansion of the discharge channel.
  • the formation of backflow to a bottleneck is enhanced by a second subsequent bottleneck.
  • the backflow and the resulting vortex cause the fibers, which are normally discharged along the spindle, to be at least partially pressed against the spindle. Near the spindle outer surface, these fibers are caught by the fibers in the fiber sun and incorporated into the yarn.
  • the vortexes created by the backflows rotate about an axis which is substantially perpendicular to the axis of the spindle and is located on a circle concentric with the inner contour of the nozzle body.
  • the vortex turns on the one hand in itself and on the other hand, the vortex is circular, rotated by the fiber sun rotating air flow to the spindle.
  • the formation of a constriction can be effected by providing an annular bead on the outer surface of the spindle tip.
  • the formation of the bead is limited in its geometric form only in that the said cross-sectional area over the circumference of the spindle results in a uniform gap width.
  • the molded bead can be round, wavy, or even have edges. In a design with multiple bottlenecks, these can be formed by a plurality of beads, wherein the beads can differ by different geometric shapes as well as different dimensions.
  • the spindle is designed in two parts.
  • the spindle tip forms with the bead formed thereon a first part of the spindle and can be attached to the second part of the spindle.
  • the first and the second part of the spindle are precisely matched to one another at a contact point.
  • the parts of the spindle can be assembled without the creation of a mechanical or chemical compound at the contact point.
  • the two parts of the spindle are held together.
  • a mechanical connection of the first with the second part of the spindle can be provided, this may for example be a plug or screw connection.
  • the first part of the spindle is formed by the outer surface of the spindle tip, which can be attached to the second part of the spindle, for example in the form of a spindle tip sleeve. The attachment can be done by attaching or another type of attachment, such as screws.
  • a ratio of a maximum outside diameter of the bead to a smallest outside diameter of the spindle tip is preferably 1.05 to 1.5.
  • the spindle tip is formed in a cylindrical shape and the inner surface of the nozzle body is formed such that in the discharge channel in its course in the direction of the longitudinal axis of the spindle at least two bottlenecks are formed, wherein the discharge channel in its course in the direction of the longitudinal axis of the spindle at each of these constrictions has an annular cross-sectional area which is smaller than the annular cross-sectional area of the discharge passage before and after each of these at least two bottlenecks.
  • the constriction can be formed by a bulge in the nozzle body, which annularly into the interior of the nozzle body hin- protrudes. Also for the execution of such a bulge various geometric shapes are conceivable.
  • the formed bulge may be round or have edges. In a design with multiple bottlenecks, these can be formed by a plurality of protrusions, wherein the bulges can differ by different geometric shapes as well as different dimensions.
  • the nozzle body can also be designed in two parts, wherein the inner surface of the nozzle body is formed by a nozzle body insert and this can be introduced into the nozzle body.
  • the formation and the size of bottlenecks can be adjusted within the discharge channel.
  • the discharge channel is adjustable in shape along the spindle tip.
  • the gap width can be reduced, if beads located on the spindle tip are brought into conformity with bulges attached to the inner surface of the nozzle body.
  • the same settings can be achieved by replacing a spindle tip sleeve or a nozzle body insert.
  • a combination of the first with the second embodiment is conceivable.
  • the design of the inner surface of the nozzle body and the outer surface of the spindle are so matched to one another that the cross-sectional area of the discharge channel is annular and results in a certain cross-sectional area a gap width, which is equal over the circumference of the spindle.
  • a further embodiment can be achieved if the bulges in the nozzle body do not reduce the inner diameter of the nozzle body, but increase it. Also such grooves or grooves are Under the term bulges to understand, provided in conjunction with the spindle tip a bottleneck of the discharge channel.
  • the use of a yarn guide insert in the yarn guide channel of the spindle tip can change the inner diameter of the yarn guide channel.
  • the shape of the spindle opening can be changed.
  • a backflow can form in the yarn guide channel, which leads to air being sucked against the yarn conveying direction by the spindle into the vortex zone. Accordingly, the air flow which is sucked along the fiber guide element in the vortex zone decreases.
  • the air flowing along the fiber guiding element is important for the sliver dissolution and the transport of the sliver to the spindle opening. This circumstance can be taken into account by narrowing the yarn guide channel with the use of a yarn guide insert in the region of the spindle tip.
  • FIG. 1 Schematic representation of an air-spinning device according to the prior
  • FIG. 2 Schematic representation of an inventive air spinning device in a first embodiment
  • FIG. 3 Schematic representation of an inventive air spinning device in a second embodiment
  • FIG. 4 Schematic representation of an inventive air spinning device in a third embodiment
  • FIG. 5 Schematic representation of a two-part spindle tip
  • FIG. 4 Schematic representation of an inventive air spinning device in a fourth embodiment
  • FIG. 7 Schematic representation of a two-piece spindle
  • Figure 8 Schematic representation of various embodiments of a spindle
  • Figure 9 Schematic representation of various exemplary forms of bulges respectively beads on nozzle body or spindle
  • FIG. 1 shows a schematic representation of an air spinning device 1 with a nozzle body 2, a spindle 3, a fiber guide element 4 and a roller pair 5.
  • the spindle 3 is hollow and comprises a yarn guide channel 6 which opens into a spindle opening 9 on the spindle tip 8.
  • a sliver 14 is fed via a fiber guide element 4 of the spindle opening 9.
  • Through holes 20 air is introduced in the direction of the spindle tip 8 in the nozzle body 2.
  • the bores are arranged in such a way that a vortex flow results at the spindle tip 8, which detects a part of the fibers from the sliver and moves over the spindle tip 8.
  • the introduced air is discharged via a discharge channel 13 of the spindle tip 8 along, wherein the air flow moves around the spindle tip 8 around.
  • the discharge channel 13 is formed by the outer surface 11 of the spindle tip 8 and the inner surface 12 of the nozzle body 2.
  • the discharge channel 13 has due to the geometry of the spindle tip 8 and the interior of the nozzle body 2 has an annular cross-section.
  • the annular cross section has a constant gap width S around the spindle tip 8 normal to the longitudinal axis 7 of the spindle 3.
  • the fibers 10 placed around the spindle tip 8 are moved around the spindle tip 8 by the rotating air flow in the manner of a screw.
  • the spindle tip 8 is that part of the spindle 3, around which the folded fibers 10 rotate.
  • the removal of the air beyond this region of the spindle 3 has no direct influence on the movement of the fibers 10.
  • the second end of the fibers 10 is trapped in the core fibers, which enter the spindle opening 9 directly from the fiber guiding element 4. Thereby, the folded fibers 10 are drawn into the spindle opening 9, whereby they wind around the core fibers due to the rotating air flow.
  • the distance L between the pair of rollers 5 and the spindle tip 8 and the spindle opening 9 has a significant influence on the number of Umwindemaschinen 10 which are formed by the fluidized air.
  • FIG. 2 shows a section of a nozzle body 2 with a spindle 3 protruding into the nozzle body 2 with a spindle tip 8.
  • a plurality of annular beads 15 formed on the spindle tip 8.
  • the beads 15 shown are shown by way of example with a symmetrical round shape. However, it is also possible to choose angular shapes, and a symmetrical arrangement is not mandatory.
  • the limited by the inner surface 12 of the nozzle body 2 and the outer surface 11 of the spindle tip 8 discharge channel 13 has an annular cross-section.
  • the gap width S at these bottlenecks is less than in each case before or after a bead 15.
  • the air flow moving helically in the discharge channel 13 in the direction of the longitudinal axis 7 is influenced by the bottlenecks.
  • FIG. 3 shows a further embodiment of the air-spinning device according to the invention.
  • the nozzle body 2 is formed in two parts in contrast to Figure 2, wherein the discharge channel 13 is limited by the inner surface of a nozzle body insert 17.
  • the use of a nozzle body insert 17 allows easy replacement of a highly stressed component without having to change the entire nozzle body 2. It is also possible in the same nozzle body 2 different nozzle body inserts 17 to install alternately.
  • the spindle tip 8 is cylindrical with a flat surface.
  • the inside of the nozzle body 17 is provided with trapezoidal bulges 16 which project annularly into the interior of the nozzle body insert 17. Through the bulges 16 13 bottlenecks are created in the discharge channel.
  • the trapezoidal shape of the bulges causes the air flow at the edge projecting into the discharge channel 13 to break off and form vortices whose axis of rotation is approximately normal to the longitudinal axis 7 of the spindle 3.
  • Figure 4 shows a combination of the embodiments of Figures 2 and 3.
  • the discharge channel 13 are created by annular bulges 16 in the nozzle body insert 17 and by annular beads 15 at the spindle tip bottlenecks.
  • the beads 15 and the bulges 16 need not be attached at the same location in the course of the longitudinal axis 7 of the spindle 3.
  • the spindle 3 is arranged displaceably in its holder relative to the nozzle body 2.
  • the spindle 3 can in the direction D the longitudinal axis 7 of the spindle to be moved.
  • the adjustment of the position of the spindle tip 8 within the nozzle body insert 17 allows a variation of the conditions in the discharge channel 13 which influence the air flow along the spindle tip 8.
  • the departure behavior of the air spinning device can be adjusted to the properties and composition of the fiber slivers to be spinned by changing the flow conditions in the discharge channel, without having to replace spindle tip 8 or nozzle body insert 17.
  • Figure 5 shows the embodiment of Figure 2 with a two-part spindle 3.
  • a spindle tip sleeve 18 is attached.
  • the beads 15 which create the bottlenecks in the discharge channel are not mounted directly on the spindle tip 8 in the illustrated two-part embodiment of the spindle 3, but on the outer surface of a spindle tip sleeve 18.
  • the spindle tip sleeve 18 is easily exchangeable as a wear part. When exchanging the spindle tip sleeve 18, however, it is also possible to choose a spindle tip sleeve 18 which has a different design of the annular beads 15 on its outside. In the embodiment shown, the spindle tip sleeve is attached to the spindle tip 8.
  • spindle tips sleeve can also be attached by other fastening methods on the spindle tip 8, for example by a screw, a pressing or gluing method, a positive connection, a snap connection or by magnetic forces.
  • FIG. 6 also shows the embodiment of FIG. 2, wherein bulges 16 are additionally introduced on the inner side 12 of the nozzle body 2.
  • the projecting into the interior of the nozzle body 2 bulges 16 are formed in the form of rings with a rectangular cross-section.
  • beads 15 creates a discharge channel 13 in the form of a labyrinth.
  • FIG. 6 also shows that the bottlenecks created by beads 15 and bulges 16 in the discharge channel 13 can have a small extension in the direction of the longitudinal axis 7 of the spindle 3 relative to the length of the spindle tip 8.
  • FIG. 7 likewise shows the embodiment of FIG. 2, wherein additionally a yarn guide insert 19 is shown.
  • the inner diameter of a spindle 3, or the dimensions of the Garn enclosureskanals 6 a spindle 3 is dependent on various factors, such as the properties and composition of the fiber material to be spinned or the desired yarn quality or the rotation of the yarn to be produced.
  • the design of the discharge channel 13 can be additionally influenced by the use of spindle tip sleeves, nozzle body inserts or the change in the position of the spindle tip 8 in the nozzle body, a simple adjustment of the dimensions of the yarn guide channel 6 is advantageous. Such adjustment is possible through the use of Garn Operationssein algorithmsn 19.
  • a yarn guide insert 19 is inserted through the spindle opening in the yarn guide channel 6 of the spindle 3.
  • the positioning of the Garn Operationsshuses 19 in Garn Entryskanal 6 can be done by a simple stop 21.
  • Such a stop 21 may for example be formed on the spindle 3 or formed by a Seeger ring used.
  • Figure 8 shows various embodiments for a design of the spindle tip 8 according to the invention.
  • the four spindle tips 8 shown can be arbitrarily combined with the configurations of the inner surfaces of the nozzle bodies or nozzle body inserts shown in FIGS. 2 to 6 to form a drainage channel.
  • the four illustrated spindle tips 8 have various annular beads 15 formed.
  • the beads 15 can also be formed by spindle tip sleeves of Figure 5.
  • a bead 15 is arranged in the vicinity of the spindle opening 9, it being noted that immediately at the location of the spindle opening 9, the outer diameter of the spindle tip is smaller than at the point the largest extent of the annular bead 15. As a result, a bottleneck is not formed directly on the spindle opening 9 in the air spinning device.
  • FIG. 9 shows a schematic representation of various exemplary shapes of indentations or beads on the inner surfaces of the nozzle bodies or the outer surfaces of the spindle tips.
  • the yarn running direction is indicated by the arrow 23.
  • Garnlaufraum is that direction to understand in which the yarn during operation through the Garn Adjustskanal along the longitudinal axis 7 of the spindle runs.
  • FIGS. 9A and 9C show detailed sections of the spindle tips 8.
  • FIG. 9A shows a
  • FIG. 9C shows a bead 15 with an undercut 22.
  • the yarn running direction 23 is important, since the desired backflow with the vortex formation does not occur to the desired extent on flow of the bead from the wrong side.
  • FIGS. 9B and 9D show detail sections of the nozzle body 2 in a sectional view, so that the inner surface 12 of the nozzle body 2 can be seen.
  • FIG. 9B shows a nozzle body 2 with an asymmetrical bulge 16.
  • the bulge 16 is first inclinedly rising in the yarn running direction 23 in order to subsequently fall steeply. Such an arrangement promotes the formation of a backflow to aid in the incorporation of short fibers into the forming yarn in the spindle tip.
  • FIG. 9D shows a nozzle body 2 with two successive angular bulges 16. In FIG. 9D, both bulges 16 have the same design, which is not mandatory. Through the undercut 22, the formation of the return flow 24 and a resulting vortex is promoted.

Landscapes

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

Abstract

La présente invention concerne un métier à filer à jet d'air (1) comprenant un corps de buse (2) et une broche (3) creuse présentant une pointe (8) et un axe longitudinal (7), la pointe (8) de la broche dépassant dans le corps de buse (2). Entre la surface extérieure (11) de la pointe (8) de la broche et la surface intérieure (12) du corps de buse (2) est formé un canal de sortie (13) de section transversale annulaire. Une largeur d'espacement (S) considérée perpendiculairement à l'axe longitudinal (7) de la broche (3) est constant en un emplacement donné du canal de sortie (13) sur la périphérie de la broche (3). La surface extérieure (11) de la pointe (8) de la broche et/ou la surface intérieure (12) du corps de buse (2) est/sont formée(s) de sorte que dans le canal de sortie (13), sur son parcours dans la direction de l'axe longitudinale (7) de la broche (3), sont formés au moins deux étranglements. Le canal de sortie (13) présente sur son parcours dans la direction de l'axe longitudinal (7) de la broche (3), au niveau de chacun de ces étranglements, une aire de section transversale annulaire qui est inférieure à l'aire de section transversale annulaire du canal de sortie (13) avant et après chacun de ces étranglements.
EP10734636.3A 2009-07-16 2010-07-09 Machine à filer à jet d'air Active EP2454403B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH11152009 2009-07-16
PCT/CH2010/000178 WO2011006270A2 (fr) 2009-07-16 2010-07-09 Métier à filer à jet d'air

Publications (2)

Publication Number Publication Date
EP2454403A2 true EP2454403A2 (fr) 2012-05-23
EP2454403B1 EP2454403B1 (fr) 2014-07-02

Family

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EP10734636.3A Active EP2454403B1 (fr) 2009-07-16 2010-07-09 Machine à filer à jet d'air

Country Status (6)

Country Link
US (1) US8464510B2 (fr)
EP (1) EP2454403B1 (fr)
JP (1) JP5698232B2 (fr)
CN (1) CN102471950B (fr)
ES (1) ES2510265T3 (fr)
WO (1) WO2011006270A2 (fr)

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FR3084121B1 (fr) * 2018-07-17 2021-01-15 Skf Aerospace France Assemblage mecanique et dispositif mecanique
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CN114032630A (zh) * 2021-10-13 2022-02-11 海宁市欧师达经编有限公司 纱线加捻结构

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ES2510265T3 (es) 2014-10-20
WO2011006270A3 (fr) 2011-04-07
WO2011006270A2 (fr) 2011-01-20
JP5698232B2 (ja) 2015-04-08
CN102471950A (zh) 2012-05-23
US20120110973A1 (en) 2012-05-10
CN102471950B (zh) 2015-02-11
JP2012533005A (ja) 2012-12-20
EP2454403B1 (fr) 2014-07-02
US8464510B2 (en) 2013-06-18

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