WO2016030136A1 - Élément de filage pour une filière d'un métier à filer pneumatique, métier à filer pneumatique et procédé pour le faire fonctionner - Google Patents

Élément de filage pour une filière d'un métier à filer pneumatique, métier à filer pneumatique et procédé pour le faire fonctionner Download PDF

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Publication number
WO2016030136A1
WO2016030136A1 PCT/EP2015/067765 EP2015067765W WO2016030136A1 WO 2016030136 A1 WO2016030136 A1 WO 2016030136A1 EP 2015067765 W EP2015067765 W EP 2015067765W WO 2016030136 A1 WO2016030136 A1 WO 2016030136A1
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WO
WIPO (PCT)
Prior art keywords
air
yarn
air outlet
channel
spinneret
Prior art date
Application number
PCT/EP2015/067765
Other languages
German (de)
English (en)
Inventor
Markus Kübler
Evzen Pilar
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 WO2016030136A1 publication Critical patent/WO2016030136A1/fr

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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
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/002—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for false-twisting spinning machines

Definitions

  • the present invention relates to a yarn formation member for a spinning nozzle of an air spinning machine, which serves to produce a yarn from a fiber structure by means of a swirling air flow, wherein the Garnticianselement has an adjoining an inlet port discharge channel over which the yarn is peelable in a transport direction, and wherein the extraction duct has at least one laterally branching air outlet, so that air introduced into the extraction duct escapes from the extraction duct partly via the air outlet and partly via the inlet opening of the yarn formation element, counter to said transport direction.
  • an air spinning machine with at least one spinneret which serves to produce a yarn from a fiber structure by means of a vortex air flow proposed, wherein the spinneret an internal vortex chamber and an inlet opening for a fed in a transport direction fiber structure and at least partially in the vortex chamber extending Garn avoirselement, and wherein the spinneret has a plurality of air nozzles, can be introduced via the air in the vortex chamber, to impart rotation to the fiber structure in the region of an inlet opening of the Garnsentelements.
  • the air-spinning machine comprises at least one spinneret for producing a yarn from a fiber structure, wherein the fiber structure of the spinneret is fed to the spinneret during a normal operation via an inlet opening and in a predetermined transport direction, wherein the Fiber structure within a swirl chamber of the spinneret in the region of an inlet opening of a yarn package protruding into the swirl chamber.
  • tion element by means of a fluidized air flow receives a rotation, so that from the fiber strand, a yarn is formed, which is finally withdrawn through a trigger channel of the Garn Strukturselements from the spinneret and wound on a yarn tube, and wherein after an interruption of the yarn production, a piecing process is carried out while a garnhülsen workedem yarn end is moved by means of introduced into the discharge duct air against the transport direction through the discharge channel.
  • a generic Garn Strukturselement is known for example from DE 10 2009 034 206 A1.
  • the Garnticianselement has a connected to a discharge duct exhaust port for the partial removal of air, which is introduced during a piecing process (in which the yarn end by means of the air against the prevailing during the spinning process transport direction through the discharge channel) in the discharge channel.
  • the partial removal of the air ensures that only a part of the air flow, which is introduced during the piecing in the discharge duct, must escape via the inlet opening of the Garnticianselements.
  • the air flow (which is introduced into the exhaust duct, for example with the aid of an injection channel opening into the exhaust duct) is divided into two partial air streams in the region of the inlet opening, with a first partial air stream leaving the exhaust duct via the exhaust air opening located in the region of the inlet opening, while second partial air flow enters the vortex chamber surrounding the yarn formation element via the inlet opening and exits from there through the inlet opening of the spinneret to the outside thereof, thereby causing the yarn end to be returned during the piecing process.
  • the reason for the distribution of the supplied air is the fact that the region of the inlet opening of the Garn avoirselements has a smaller inner diameter than the subsequent discharge channel in the transport direction. Due to the lateral branching of the first partial air flow in the rich in the inlet opening, an air accumulation in the transitional area between the exhaust duct and inlet opening is finally avoided and a uniformly high air velocity is ensured.
  • the yarn end is conveyed as far as the swirling chamber and finally via the inlet opening of the spinneret into the region in front of the spinneret (i.e., into a region between the spinneret and the drafting device upstream of the spinneret in the transporting direction). There, it is brought into contact with a fiber structure supplied by the drafting system and, together with this, returned to the vortex chamber in which finally the actual spinning process can be continued.
  • a disadvantage of the described solution is the fact that the air flow exiting via the exhaust air opening in the swirl chamber can cause an unfavorable air flow for the return of the yarn end.
  • the object of the present invention is therefore to propose a yarn-forming element, an air-spinning machine equipped therewith, and a method for operating the same, which do not have the disadvantage mentioned.
  • the yarn formation element is characterized in that it has at least one air outlet opening in the region of its outer surface, the air outlet opening being in fluid communication with the air outlet branching laterally from the discharge channel and oriented such that air escaping from the discharge channel forms the air outlet opening happens and finally substantially against the transport direction of the Garn Strukturselement exit.
  • the escaping air thus does not leave the yarn formation element perpendicular to the transport direction.
  • the air outlet opening (s) is formed or aligned so that the corresponding air flows in a direction in which the yarn end (ie the end of the yarn produced in a spinning operation preceding the piecing operation of the spinneret and with Help of a winding device was spooled onto a sleeve) during the piecing process to be transported in order to bring it in the transport direction in front of the spinneret to be able to bring into contact with a fiber structure.
  • the air introduced, for example, via an air injection duct (eg in the form of a bore) which opens into the exhaust duct thus flows in part through the exhaust duct in the direction of the inlet opening of the yarn formation element and through it into the swirl chamber.
  • the remaining part of the air leaves the Garn avoirselement on the air outlet opening (s) and finally flows also in the direction of the yarn end to be passed through the inlet opening.
  • the air comes into contact with the yarn end moving in the opposite direction to the transport direction as soon as it exits the yarn formation element, again counter to the transport direction.
  • the yarn end is finally detected by the air exiting through the air outlet opening (s) and through this against the transport direction in the direction of the inlet opening of the spinneret (upstream of the inlet opening of Garn Anlagenselements in the transport direction) and ultimately conveyed through the inlet opening, as well as the air over the inlet opening escapes to the outside.
  • the yarn formation element has a plurality of air outlet openings which are arranged in a plan view of the inlet opening of the yarn formation element around the inlet opening.
  • This forms when loading the exhaust duct with air in one of Direction of transport opposite direction (ie, from the interior of the discharge channel in the direction of the inlet opening of Garn avoirselements) an air flow which acts from several sides on the yarn end leaving the inlet opening opposite to the transport direction during piecing.
  • the yarn end is particularly reliably acted upon in a direction opposite to the direction of transport by a force which effects or supports the desired movement of the yarn end.
  • a particularly homogeneous and evenly distributed around the longitudinal direction of the yarn end air flow is finally obtained when the air outlet openings are arranged distributed concentrically around the inlet opening.
  • the number of air outlet openings has an amount which is between 2 and 14, preferably between 4 and 12. While only one air outlet opening usually exerts a rather one-sided effect on the yarn end moving against the transport direction, more than 12 air outlet openings have the disadvantage that their diameter would have to be disproportionately small in order to prevent the falling below a minimum flow velocity of the air outlet opening passing air , On the other hand, if the number lies in the stated range, an air flow is created which, depending on the orientation and number of the air outlet openings, can have a substantially cylindrical or frustoconical spatial extent and surrounds the yarn perpendicular to its longitudinal orientation on all sides. In particular, the air outlet openings should in this case be distributed uniformly around the inlet opening of the yarn formation element.
  • the air outlet openings in the region of the surface of the Garn have a diameter whose amount is between 0.1 mm and 3.0 mm, preferably between 0.2 mm and 2.0 mm.
  • the diameters mentioned represent a flow. mungs Jardin the emerging through the air outlet openings air sure that ensures the said transport of the yarn end, without changing the structure to such an extent that the subsequent connection process could fail with a fiber structure supplied by a drafting system.
  • the center axes of the air outlet openings with the center axis of the outlet channel each include an angle (a) whose magnitude is between 0 ° and 20 °, preferably between 0.5 ° and 10 °.
  • the center axes of the air outlet openings preferably present as bores are preferably inclined slightly in the direction of the inlet opening of the yarn formation element and intersect in a sectional view of the yarn formation element through the central axis of the exhaust duct in the transport direction before the inlet opening of Garn avoirselements or are skewed.
  • the air outlet openings are formed by bores, wherein the center axes of the holes lie on an imaginary cone whose axis of rotation is concentric to the central axis of the outlet channel and the tip points in a direction opposite to the transport direction.
  • the tip of the imaginary cone is preferably also in front of the inlet opening of the Garn Strukturselements seen in the transport direction.
  • the at least one air outlet opening in a side view of the yarn formation element has a distance to the inlet opening extending parallel to the outlet channel, the magnitude of which is between 0.5 cm and 4.0 cm, preferably between 1.0 cm and 4 , 0 cm, is.
  • the said distance ensures that the air flow, starting from a jet-shaped mold, can fan out to some extent before it strikes the yarn end. An excessive change in the yarn structure is due to the resulting homogenization of Airflow reliably prevented.
  • the yarn formation element comprises a sleeve which delimits the yarn formation element at least partially outwards, the air outlet openings being arranged in the region of the sleeve.
  • the Garn Strukturselement consists in this case at least from the sleeve (which may for example have an at least partially cylindrical shape) and one or more other components, eg. In the form of one or more inserts.
  • the tip of the yarn formation element having the inlet opening as a unit which is structurally separate from the sleeve but held by it.
  • one or more seals are arranged between the sleeve and corresponding further components in order to prevent compressed air introduced via the trigger channel from escaping to points at which no air outlet is desired.
  • the branching off from the discharge duct air outlet is generally an opening in the wall surrounding the discharge channel through which the introduced into the discharge duct air partially emerge laterally within the Garn avoirselements back from the discharge channel and finally over the air outlet openings can flow outside the Garn avoirselements.
  • the air outlet thus essentially constitutes a fluid connection between the extraction duct and the air outlet or openings.
  • the air outlet openings over a within the Garn avoirselements extending channel are in fluid communication, which in turn is in fluid communication with the at least one air outlet of the discharge channel.
  • the channel or a portion thereof is annular and surrounds the discharge channel, wherein the connection of the channel and the withdrawal channel is realized by one or more air outlets.
  • the channel is limited in sections by an inner surface of the sleeve. As a result, it is not necessary to introduce the channel in a technically complicated manner in the Garn Strukturselement.
  • an internal insert of the yarn-forming element can have one or more air outlets which are in fluid communication with the extraction duct.
  • the sleeve has in this case a corresponding clearance, which adjoins the assembled sleeve on the air outlets and finally limits the said channel partially.
  • the air-spinning machine is distinguished by the fact that it has at least one yarn-forming element which is designed in accordance with the previous or following description, wherein the individual physical characteristics can be implemented individually or in any combination, provided that this does not result in technical contradictions and as long as the yarn-forming element has at least one ending in the region of its outer surface air outlet opening and the air outlet opening is in fluid communication with the air outlet and is oriented such that over the air outlet from the flue gas escaping air passes through the air outlet opening and finally emerges substantially against the transport direction of the Garn Strukturselement.
  • the spinneret has at least one opening into the discharge channel injection channel which is in fluid communication with a compressed air source and can be introduced via the during the piecing process described air in the discharge channel.
  • the injection channel can open, for example, into an annular channel surrounding the withdrawal channel in the region of a yarn outlet opening, which opens again into the withdrawal channel.
  • the introduced into the discharge duct air is hereby separated within the Garnticianselements such that it leaves the discharge duct partially over the inlet opening of Garnticianselements and partially over at least one air outlet opening of Garnticianselements, wherein the air outlet opening is oriented such that the escaping through the air outlet opening air the Garn Strukturselement Leaves substantially opposite to the transport direction.
  • the air flow leaving via the air outlet opening (s) hereby causes the yarn end to be transported against the transport direction of the yarn or the fiber composite fed during yarn production, since it strikes the said yarn end from the outside as soon as it leaves the inlet opening of the yarn formation element.
  • the air flow is directed towards the inlet opening of the spinneret, through which a fiber structure, from which the yarn is produced within the spinneret, is introduced into the vortex chamber during yarn production. This will eventually ensure that the yarn coming out of the inlet opening against the direction of transport also reliably guided through the inlet opening of the spinneret.
  • the yarn leaving the yarn formation element leaves the spinneret at least partially via its inlet opening and against the transport direction via the air leaving the at least one air outlet opening during the piecing process. This ensures that the yarn is not only promoted to the area of the vortex chamber, but up to the spinneret.
  • the overlay with the fiber structure, the common return of the resulting fiber longitudinal structure in the spinneret and the subsequent resumption of yarn production is advantageous.
  • FIG. 1 shows a schematic view of a spinning station of an air-jet spinning machine according to the invention during normal operation thereof
  • FIG. 2 shows the spinning station according to FIG. 1 after an interruption of FIG
  • FIG. 3 shows the spinning station according to FIG. 1 after the return of the
  • FIG. 4 shows the spinning station according to FIG. 1 towards the end of the piecing process
  • Figure 5 is a sectional view of a spinneret of an air-spinning machine according to the invention.
  • Figure 6 is a sectional view (left) and a bottom view (right) of another embodiment of an inventive Garn Strukturselements.
  • Figure 1 shows a section of a spinning station of an air-jet spinning machine according to the invention (the air-spinning machine can of course have a plurality of, preferably adjacent to each other, spinning stations).
  • the air-spinning machine can comprise a drafting system 22 with a plurality of drafting rollers 21, which is supplied with a fiber structure 4, for example in the form of a relined conveyor belt.
  • the spinning station shown comprises a spinneret 2 shown by way of example in FIG. 5 with an internal swirl chamber 13 in which the fiber structure 4 or at least part of the fibers of the fiber composite 4 is provided with a rotation after passing through an inlet opening 14 of the spinneret 2 exact mode of action of the spinning station will be described in more detail below).
  • the spinning station may comprise a pair of delivery rollers downstream of the spinneret 2 and two take-off rollers 23, and a winding device downstream of the take-off roller pair (not shown) for winding the yarn 3 leaving the spinning station onto a yarn tube 24.
  • the spinning station according to the invention need not necessarily have a drafting device 22.
  • the pair of take-off rollers is not mandatory or can be replaced by an alternative take-off unit.
  • the spinning station shown generally works by an air spinning process.
  • the fiber structure 4 is guided in a transport direction T via said inlet opening 14 into the swirl chamber 13 of the spinneret 2. There, it receives a rotation, ie at least part of the free fiber ends of the fiber composite 4 is detected by a vortex air flow which is generated by correspondingly arranged in a vortex chamber surrounding the vortex chamber 13 air nozzles 15, wherein the air nozzles 15 via a (eg. annular and with an air supply line tion connected) air distribution are fed with compressed air.
  • a part of the fibers is hereby pulled out of the fiber structure 4 at least a little bit and wound around the tip of a yarn formation element 1 protruding into the vortex chamber 13.
  • the air nozzles 15 it should also be mentioned as a precautionary measure at this point that they should generally be aligned so that the exiting air jets are rectified in order to jointly produce a rectified air flow with a uniform direction of rotation.
  • the individual air nozzles 15 are arranged in this case rotationally symmetrical to one another and open tangentially into the swirl chamber 13.
  • the yarn production is interrupted by a control unit, not shown, so that a garnhülsen wornes yarn end 18 is formed.
  • unwanted yarn breaks may occur, which likewise result in a corresponding yarn end 18 and in the region of the correspondingly drafted drafting device 22 coming to an end 25 of the fiber composite 4.
  • the yarn end 18 is further conveyed through the inlet opening 14 of the spinneret 2 until it reaches the area in front of the spinneret 2 (in FIG Transport direction T seen) is located.
  • the yarn end 18 is moved until it is between the two outlet-side drafting rollers 21 of the drafting system 22 (said drafting rollers 21 are moved away from each other before passing through the yarn end 18 to allow said passage After passing the yarn end 18, they are finally returned to the position shown in Figure 3, in which the yarn end 18 is fixed by clamping).
  • the outlet side, the twine end 18 will be fixed. re, drafting rollers 21, the take-off rollers 23 and the winding device again put into operation, so that the yarn end 18 is moved in the transport direction T. At the same time or delayed in time, the remaining drafting rollers 21 are set in motion again, wherein the beginning of their rotation and the corresponding speed are adjusted so that the end 25 of the fiber composite 4 comes into overlapping contact with the yarn end 18 and together with this in the spinneret 2 can be recovered.
  • the spinneret 2 now has one (or more) opening into the discharge channel 6 injection channels 16 which communicates with a direction indicated in Figures 1 to 4 compressed air source 17 in connection or stand. If now the yarn end 18 are returned in the manner described by the spinneret 2, the injection channel 16 is acted upon by an overpressure, so that an air flow is formed, which extends against the transport direction T in the discharge channel 6. In this case, in addition to an air flow opposite to the transport direction T, a negative pressure in the outlet region of the spinneret 2, which causes a suction or suction of the yarn end 18, is produced.
  • the inlet opening 5 of the yarn-forming element 1 generally has a smaller diameter than the discharge opening 5.
  • the inlet opening 5 is thus a bottleneck, which would limit the volume flow of the air introduced with a certain air pressure to a certain value, which for the return of the yarn 3 into the region of the vortex chamber 13 could be too small.
  • the yarn formation element 1 designed according to the invention therefore has at least one laterally branching air outlet 7, so that air introduced into the discharge channel 6 against the said transport direction T is partly via the air outlet 7 and partly via the inlet opening 5 of the yarn formation element 1 from the discharge channel 6 escapes.
  • the invention provides for the at least one air outlet 7 to be in fluid connection with preferably a plurality of air outlet openings 9 of the yarn formation element 1, wherein the air outlet openings 9 are arranged in the region of an outer surface 8 of the yarn formation element 1, and the air outlet openings 9 are aligned in such a manner, air escaping via the air outlet 7 from the withdrawal channel 6 passes through the air outlet openings 9 and finally exits the yarn formation element 1 substantially counter to the transport direction T.
  • the air outlet openings 9 which are formed for example by drilling, a slight inclination in the direction of the inlet opening 5 of Garn Strukturselements 1, wherein with respect to the angle ⁇ between the central axis 19 of the discharge channel 6 and the respective central axes 20 of the preferably designed as bores air outlet openings. 9 Reference is made to the above description.
  • FIG. 6 which is a bottom view of the yarn formation element 1 shown in the left-hand view in FIG. 6, shows that the air outlet openings 9 should be distributed uniformly around the inlet opening 5.
  • the air outlet openings 9 arranged recessed with respect to the inlet opening 5, d. H. the inlet opening 5 seen in the transport direction T downstream by a certain distance A are.
  • the parallel to the central axis 19 of the discharge channel 6 extending distance A is preferably in the range specified above.
  • the air outlet openings 9, which are preferably in the form of bores should have a diameter D whose magnitude is between 0.1 mm and 3.0 mm, preferably between 0.2 mm and 2.0 mm.
  • FIG. 6 shows that the air outlet openings 9 do not necessarily have to be introduced into the component of the yarn formation element 1 which has the inlet opening 5 (cf. FIG. 5). Rather, the Garn Strukturselement 1 may have a the inlet opening 5 exhibiting component, which is surrounded by a sleeve 10 and preferably held by this.
  • the air outlet openings 9 are finally introduced into the inlet opening 5 facing part of the sleeve 10 and, for example, via a ring shaped channel 1 1 connected to the one or more air outlets 7.
  • the inner surface 12 of the sleeve 10 the said channel 1 1 limited, so that its production is relatively simple from a technical point of view.

Landscapes

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

Abstract

L'invention concerne un élément de filage (1) destiné à une filière (2) d'un métier à filer pneumatique qui est utilisé pour produire un fil (3) à partir d'un composite de fibres (4) au moyen d'un flux d'air tourbillonnant ; l'élément de filage (1) comporte un canal de tirage (6) qui est raccordé à un orifice d'entrée (5) et qui permet de tirer le fil (3) dans un sens de transport (T), et le canal de tirage (6) comporte au moins une sortie d'air (7) latérale de sorte que de l'air, introduit dans le conduit de tirage (6) dans le sens opposé audit sens de transport (T), s'échappe du canal de tirage (6) en partie par la sortie d'air (7) et en partie par l'orifice d'entrée (5) de l'élément de filage (1). Selon l'invention, l'élément de filage (1) comporte au moins un orifice de sortie d'air (9) qui débouche au niveau de la surface extérieure (8) de l'élément de filage (1) ; l'orifice de sortie d'air (9) est en communication de fluide avec la sortie d'air (7) et est orienté de telle sorte que l'air s'échappant du canal de tirage (6) par la sortie d'air (7) passe par l'orifice de sortie d'air (9) et sort enfin de l'élément de filage (1) sensiblement dans le sens opposé au sens de transport (T). En outre, l'invention concerne un métier à filer à air et un procédé pour faire fonctionner celui-ci.
PCT/EP2015/067765 2014-08-28 2015-08-03 Élément de filage pour une filière d'un métier à filer pneumatique, métier à filer pneumatique et procédé pour le faire fonctionner WO2016030136A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014112360.3 2014-08-28
DE102014112360.3A DE102014112360A1 (de) 2014-08-28 2014-08-28 Garnbildungselement für eine Spinndüse einer Luftspinnmaschine, Luftspinnmaschine sowie Verfahren zum Betrieb einer solchen

Publications (1)

Publication Number Publication Date
WO2016030136A1 true WO2016030136A1 (fr) 2016-03-03

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WO (1) WO2016030136A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110747537A (zh) * 2019-11-12 2020-02-04 华南理工大学 一种木质素/石墨烯基碳纤维的制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016118858A1 (de) * 2016-10-05 2018-04-05 Maschinenfabrik Rieter Ag Faserführungselement für eine Spinndüse einer Luftspinnmaschine sowie Verfahren zum Betrieb einer Luftspinnmaschine
EP4015682A1 (fr) * 2020-12-18 2022-06-22 Saurer Intelligent Technology AG Poste de travail d'un métier à filer à jet d'air ainsi que élément de guidage de filetage

Citations (3)

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Publication number Priority date Publication date Assignee Title
EP1288354A2 (fr) * 2001-08-29 2003-03-05 Maschinenfabrik Rieter Ag Mesures pour influencer le flux d'air dans un canal de filature d'un métier à filer a vortex
DE102009034206A1 (de) * 2009-07-17 2011-01-27 Maschinenfabrik Rieter Ag Bauteil für eine Luftdüsenspinnvorrichtung
EP2730685A1 (fr) * 2012-10-29 2014-05-14 Maschinenfabrik Rieter AG Elément de formation de fil pour métier à tisser à jet d'air comprenant un insert et filière équipée de celui-ci

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Publication number Priority date Publication date Assignee Title
JP3064951B2 (ja) * 1997-04-24 2000-07-12 村田機械株式会社 糸通し装置
DE10333411A1 (de) * 2003-07-15 2005-02-03 Wilhelm Stahlecker Gmbh Vorrichtung zum Herstellen eines gesponnenen Fadens aus einem Stapelfaserverband

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1288354A2 (fr) * 2001-08-29 2003-03-05 Maschinenfabrik Rieter Ag Mesures pour influencer le flux d'air dans un canal de filature d'un métier à filer a vortex
DE102009034206A1 (de) * 2009-07-17 2011-01-27 Maschinenfabrik Rieter Ag Bauteil für eine Luftdüsenspinnvorrichtung
EP2730685A1 (fr) * 2012-10-29 2014-05-14 Maschinenfabrik Rieter AG Elément de formation de fil pour métier à tisser à jet d'air comprenant un insert et filière équipée de celui-ci

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110747537A (zh) * 2019-11-12 2020-02-04 华南理工大学 一种木质素/石墨烯基碳纤维的制备方法

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