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EP1217110A2 - Dispositif de filage - Google Patents

Dispositif de filage Download PDF

Info

Publication number
EP1217110A2
EP1217110A2 EP01130105A EP01130105A EP1217110A2 EP 1217110 A2 EP1217110 A2 EP 1217110A2 EP 01130105 A EP01130105 A EP 01130105A EP 01130105 A EP01130105 A EP 01130105A EP 1217110 A2 EP1217110 A2 EP 1217110A2
Authority
EP
European Patent Office
Prior art keywords
fibers
fiber
channel
different
conveying
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.)
Withdrawn
Application number
EP01130105A
Other languages
German (de)
English (en)
Other versions
EP1217110A3 (fr
Inventor
Peter Anderegg
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 EP1217110A2 publication Critical patent/EP1217110A2/fr
Publication of EP1217110A3 publication Critical patent/EP1217110A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/38—Channels for feeding fibres to the yarn forming region
    • 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
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex

Definitions

  • the invention relates to a method and an apparatus for producing a spun thread from a fiber structure, according to the generic term of the first independent process and first independent device claim.
  • Such a device is known from DE 4431761 C 2 (US 5528895) and is shown with Figures 1 and 1 a. It contains fibers through a fiber guide channel 13 on a fiber guide surface 4 b over an end edge 4 c and around so-called needle 5 into a yarn passage 7 of a so-called spindle 6 guided, the rear part of the fibers by a vortex flow generated by nozzles 3 around the front part of the Fibers twisted, forming a yarn. This after after was spun what was described later in connection with the invention becomes.
  • the so-called needle and its tip, around which the fibers are guided, is near or in the entrance mouth 6 c of the yarn passage 7 and serves as a so-called false yarn core to prevent as much as possible or to reduce that through the fibers in the fiber guide channel for the fibers impermissibly high, constricting false twist of the fibers arises, which at least disturb, if not prevent, the formation of yarn would.
  • FIG. 1 b compared to the invention of DE 4431761 C 2, the Disadvantages, known from DE 4131059 C 2 (US 5211001) of the Technology shown in which, as known from DE 4431761 Figure 5, the fibers are not consequently, as shown in Figure 1 a, guided around the needle, but on both sides of it Needle to be guided against the inlet opening of the yarn passage, what supposedly interferes with the incorporation of the fibers and supposedly to reduce the Strength of the spun yarn can result.
  • FIG. 1 c shows a further development of the invention in FIG. 1 a, in that, as can be seen, the fiber guide surface here is of helical design and the fibers are also helically guided in their course from the clamping gap X to the end e 5 of the helical surface and then on be wound helically around a fiber guide pin, similar to the fiber guide pin of FIG. 1, before the fibers are caught by the rotating air flow and turned into a yarn Y. It can be seen that the free ends of the fibers f 11 are caught by the rotating air stream and bent around the mouth part of the spindle 6 and are wound around the ends bound in the fiber structure, which are already in the center of the fiber course, in order to thereby thread the yarn to build.
  • Figure 1 c comes from DE 19603291 A 1 (US 5647197) and was adopted with the characteristics listed therein, without these characteristics having been incorporated into this text with a corresponding explanation, which incidentally applies to all figures adopted from the prior art , Only the spindle 6, the yarn passage 7 and their venting cavity 8 of FIG. 1 were taken over here, while the element e 2, which has a similar function to the needle 5 of FIGS. 1 to 1 b, was left as it is.
  • the primary goal of the prior art was a false twist of the fiber assembly from the spindle back to the To avoid terminal point X, however, on the other hand, the fiber flow is such must be designed so that free, advantageously rear ends, in the direction of travel seen, are available to the already in the yarn passage of the spindle located fiber part to be wound around, thereby the yarn Y to form.
  • FIGS. 3 and 3 a discloses a spinning device (see FIGS. 3 and 3 a), which on the one hand has two channels, namely a channel for core fibers and a parallel channel for wrapping fibers.
  • the peculiarity is that the core fibers from a swirl device (air) present in the fiber channel of the spindle back to the clamping point of the rollers supplying the fiber structure incorrectly rotated in such a way that certain fibers are not affected by this false twist and are supplied in the parallel channel against the spindle's mouth.
  • DE 4131059 C 2 also mentions that a distance between the Entry mouth of the spindle 6 and the clamping gap X, in Figure 1 c with B marked, greater than half the average fiber length, but less than 1.5 times the average fiber length should be, on the one hand, sufficiently long fiber ends for that Get around and on the other hand these fiber ends not too early from the Free the clamping in the clamping gap X.
  • the disadvantage is on the one hand in somewhat vague term of the medium fiber length and on the other hand in the long one Wingspan between half the average fiber length and one and a half times Length.
  • the invention achieves its object according to the characteristics of the first independent Process and first independent device claim.
  • the advantage of the invention is that with more than one distance between the clamping line of the pair of output rollers or the fiber delivery line the suction drum and input mouth of the spindle have more fibers with their Previous ends have reached the embedding area before they have not integrated free preferably rear ends, seen in the direction of grain, have left the clamping line or the fiber delivery line in order to to better optimize the mentioned wrapping length.
  • FIG 3 further shows a longitudinal section through a spinning device a fiber guide channel 5 a and a second fiber guide channel 5 b.
  • the fiber guide channel 5 a is on the one hand from the air vortex N 1 and on the other false twist supported by the swirl nozzle N a turned into a core fiber strand, which is from the entrance to the spindle 4 to the clamping gap K of the two Pinch rollers 2 extends.
  • FIG. 4 shows a drafting system 1 with four drafting system rollers (two partially shown) and a pair of drafting straps, which the fibers between a upper pinch roller 2 and a lower pinch roller 3 promotes.
  • Pinch rollers 2 and 3 in turn convey a sliver 7 against a fiber conveyor channel 8 through which due to an injector effect, given by injection nozzles 9, air is sucked in and the sliver 7 is brought into the fiber feed channel 8.
  • the fiber feed channel is part of a fiber feed element 10 which, as shown in FIG a support member 37 is used and replaceable.
  • FIG. 4 a shows a variant instead of the lower pinch roller 3, a suction roller 4, by means of which the fibers from the nip between the upper pinch roller 2 and the suction roll 4 is conveyed as a sliver 7 against the fiber conveying channel 8 and there, as described above, can be detected by the air flow.
  • the further process for The formation of the yarn corresponds to the process in FIG. 4.
  • a suction area 5 is provided in the suction roll 4, by means of which air from sucked in outside the suction roll 4 and the fibers on the surface held and by the rotation of the suction roller 4 against the fiber feed channel promoted and at the end of the suction area at a fiber delivery point P again be released.
  • the air in the suction area 5 is discharged through a suction opening 6 aspirated.
  • 5 to 5 c correspond essentially to FIGS. 2 to 2 b and 2.1. to 2 b.1 the previously mentioned application CH 2000/1845/00, which is an integrating Is part of this application or is at least pointed out.
  • FIG. 5 shows schematically with a line a suction roll 39 analogous to the suction roll 4 4 a, which, however, in contrast to FIG. 4 a, does not show the fibers from above down, but from bottom to top in the fiber feed channel 26.
  • this channel the fibers in the conveying direction 25 on the fiber guide surface 28 to the fiber delivery edge 29 shown in FIG. 5 c.
  • Fiber delivery edge 29 becomes the leading or leading ends of the fibers in the spindle inlet mouth 35 in an area marked with N bundled and guided into the yarn guide channel 45, while the rear or trailing ends 49 of the fibers from rotating air flow generated by the nozzles 21, as with Fig. 5 and 5b, usually wrapped around the mouth part of the spindle 32 and twisted, so that by turning these free ends a yarn 46 with real Rotation arises.
  • the fiber feed channel 26 is part of a fiber feed element 27, which is interchangeably inserted in a support member 37.
  • the support member 37 is on the other hand, firmly inserted in a nozzle block 20.
  • FIG. 5 a The cross section of Fig. 5 in Fig. 5 a shows the same elements. In addition is It can be seen that there are four nozzles 21, which the rotating air flow for rotating the free fiber ends.
  • the fibers start from a fiber receiving edge 31 gradually to a fiber delivery edge 29 (Fig. 5 c), and because of the fiber movement and the bundling together in the bundle point N designated fiber constriction and wrapping area in the Yarn guide channel 45 fibers.
  • the spinning process has to be included Start a piecing process so the leading ends of the fibers can actually be accommodated in the spindle inlet mouth 35.
  • FIG. 10 schematically shows a section of a yarn 45 with a incorporated front fiber end 52 and a wound rear fiber end 51, which wraps around the package 55 over a wrapping length 54. At 53 she is Direction of yarn 46 marked.
  • Obtaining sufficiently long free ends depends on the one hand on the length of the individual fibers, which are recorded in terms of length in the laboratory in a so-called stack diagram, and on the other hand on the distance between the nip line K of two output rollers, as shown in FIG. 4, or the fiber delivery point P on one Suction roll, as shown in Fig. 4 a and the spindle inlet mouth 35. These two distances are also called “clamp length” here.
  • the fiber flow is divided into at least two parts according to the invention, as shown in FIGS.
  • one part primarily as so-called short or core fiber part and the other part is primarily intended as a so-called long or wrapping fiber part in order to improve the uniformity and strength of the yarn by better adaptation to the clamping length and to the wrapping length 54, the two aforementioned terms "short or core fiber part "and" Long or wrapping fiber part "were created for this description and are not considered general technical terms.
  • the yarn end in the core fiber part which is guided backwards through the spindle against the output rollers of the drafting system or against the suction roller, is passed.
  • the core fiber part is an essentially elongated channel, that is to say, not a curved channel, while the wrapping fibers are mostly guided in the channel with the bend, that is to say in the wrapping fiber part.
  • the middle channel will usually be the core fiber part.
  • the two outer channels provided with a bend can have the same or a different bend in order to obtain a different mean conveying length (24 to 24.11) and a different impact angle ⁇ or ⁇ . In this case, as shown in FIGS.
  • the angle ⁇ from the bundle point N, in which the mean conveying lengths intersect, is tangent to a curved, mean conveying length 24 T and enclosed by the centerline 47 of the spindle.
  • the angle ⁇ is enclosed on the one hand by the center line 47 and either by a mean conveying length 24 or by a tangent T.1 applied at a bundle point N to a mean conveying length.
  • the mean conveying lengths, which are different per se, are only briefly identified by 24 in the four aforementioned figures.
  • this curved movement creates one versus one stretched, medium conveying length increased conveying length so that the front or preceding ends of the same length fibers, which simultaneously in the enter the corresponding channel at the same speed as a result of different delivery length the bundle point N not at the same time to reach. That means that the front end of the fiber is bound earlier than the shorter route other fiber on the longer path.
  • you also take the Possibility of different speeds due to different To be able to receive channel cross sections, you also have the option of a temporal difference for reaching the binding area of the two fibers receive. In other words, you have the option of several, side by side distances between the clamping line K or a fiber delivery point P. of the suction roll and the bundling point N. That means you have one greater range of the distances mentioned, to better understand the length mix to be able to adjust the fibers in the fiber structure.
  • the impact angle (so called for this application) offers ⁇ or ⁇ a certain tendency to release the rear ends because To a certain extent, this is already geometrically preparatory work for keeping these ends free is accomplished.
  • Another possibility is to design the cross section of the channels so that the channel towards the end, that is, towards the bundle point N in Cross section is expanded so that there is a delay in the air, which has the consequence that the fibers tend to be transverse to the conveying direction, whereby the rear ends tend to be at an enlarged angle than that Angle ⁇ , or ⁇ the bundle point or the mentioned integration area to reach.
  • Fig. 6 shows the suction roll 4, in which an intermediate element 16, the suction roll in a left suction part 12, seen in the direction of conveyance 11 and in a right Suction part 13 divided so that a fiber structure from the clamping line K in Direction of conveyance 11 is divided into two parts, namely in a width which the corresponding input widths of the following fiber channels 14 and 15 corresponds.
  • FIG. 6 a shows angle ⁇ larger than in Fig. 6, that is, here the so-called Angular effect is more desirable than in FIG. 6.
  • the fiber conveyor elements 27 in which these Channels are embedded are interchangeable, which means that the channels the appropriate fiber material can be adjusted.
  • the optimal for all variants of the figures shown Width ratio of one channel to the other, the optimal ratio of the medium delivery lengths, possibly the optimal location of the bundling point N and the optimal angles ⁇ and ⁇ are determined empirically, depending on the fiber mixture.
  • 6, 6 a and 6 c are all shaped in such a way that the air, or the fibers from the beginning to the end a predetermined Experience acceleration, while in channel 14.2 of Fig. 6 b primarily a Acceleration of the air to the culmination point of a partition 38.2 takes place, while then up to the end of the channel, by expanding the Duct, the air is delayed to achieve the previously mentioned effect obtained, namely that the fiber tends to move transversely to the channel.
  • the acceleration of the fibers has the advantage that the fibers stretched and reach the junction essentially in this position.
  • FIGS. 6 a and 6 c and 7 a and 7 c in which no suction roll is shown, but also for Application can come.
  • the Angle of incidence ⁇ and ⁇ for channels 14 and 15 optionally depending on the fiber material may be the same or different, while the middle channel usually has an average conveyor length, which is usually in the same plane as the center line 47 of the spindle 32. This plane is perpendicular to the view Figures seen.
  • the suction roller 4 is corresponding to the three channels in FIGS. 7 and 7b provided with a middle suction part 19.
  • the suction parts 12, 13 and 19 are through the intermediate elements 17 and 18 divided.
  • the guide walls 33.4, 33.5, 33.6 and 33.7 are each up to the fiber delivery edge 29 guided to guide the fibers in such a way that, as mentioned earlier, they are practical can be recorded lossless in the integration area.
  • the fiber feed channels are designed such that the air and this also accelerates the fibers from start to finish, 7b are such that the air in the middle channel accelerates, while the air in the outer channels decelerates in the end area becomes.
  • the air in duct 14.7 and 23.3 has an acceleration, while this is delayed in channel 15.7 in the end area.
  • FIGS. 6 to 7 c are only examples of those mentioned at the beginning Realize aspects of the invention, which is why the invention does not address it is limited, but within the scope of the inventive concept further variants are conceivable.
  • FIG. 8 shows a variant of FIG. 4, in addition by a pressure roller 43 is provided which with a roller part 43.1 and a roller part 43.2 is provided, the roller part 43.1 having a smaller diameter than the roller part 43.2.
  • the roller part 43.2 lies with the circumference on the Fiber guide bottom of the fiber conveyor channel 8.1., While the roller part 43.1 with the gap corresponding to the smaller diameter of the diameter difference between the circumference of the roller 43.1 and the bottom of the fiber feed channel 8.1 results, so that the fibers in this area have a free passage from the Clamping line K up to the mouth of the spindle 32, which corresponds to the distance M is marked.
  • roller part 43.2 forms with the bottom of the fiber conveying channel 8.1 a clamping line K.1, so that between this clamping line and the entrance mouth Spindle 32 a distance M.1 arises.
  • This variant therefore shows another possibility, medium conveyor lengths to vary in addition to the variants shown with FIGS. 6 to 7c.
  • the pressure roller 43 is by means of an overdrive 44 from the shaft of Pinch roller 2 driven such that the peripheral speed of the Pressure roller part 43.2 corresponds to the peripheral speed of roller 2.
  • the difference of the diameter roller parts 43.1. and 43.2 is such that the Fiber flow between the clamping line K and the mouth of the spindle 32 on the floor of the fiber feed channel 8.1 is not disturbed.
  • Fig. 9 shows a variant of Fig. 4a, in which the same elements the same Have characteristics and are therefore not described again.
  • a pressure roller 43.1 is provided is, which presses against the circumference of the suction roller 4 by a clamping line to form between the circumference of this roller and the circumference of the suction roller 4, so that the detachment of the fibers from the suction roll 4 in the fiber feed channel 8.1 given happens and not variable.
  • the roller 43.1 is spring-supported, which is shown with the symbolic spring 50.1 is. The same applies to the pressure roller 43 of FIG. 8, the spring with 50 here is marked.
  • FIG. 9 The variant of FIG. 9 is combined with channels shown in FIGS. 6 to 7c.
  • the roller 43.1 is driven by the suction roller 4 due to the friction between the surface of the pressure roller 43.1 and the fiber structure 7, which has a frictional relationship with the surface of the suction roll 4.
  • the pressure roller 43 of FIG. 8 can furthermore be provided with longitudinal grooves, around the suction air caused by the nozzles 9 through the fiber feed channel 8.1 to let pass.
  • Another variant is to fine-tune the surface of the roller part 43.2 To provide circumferential grooves, which also allow air passage.
  • FIG. 8 shows two parallel tapes different average fiber lengths passed through the same drafting system, whereby the fiber ribbon with the shorter fibers from the roller 43.2 in the clamping line K.1 is clamped while the fiber ribbon with the longer fibers in the gap between the roller 43.1 and the fiber guide surface (no mark) of the Fiber conveyor element 10.1 is guided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP01130105A 2000-12-22 2001-12-19 Dispositif de filage Withdrawn EP1217110A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH25162000 2000-12-22
CH251600 2000-12-22

Publications (2)

Publication Number Publication Date
EP1217110A2 true EP1217110A2 (fr) 2002-06-26
EP1217110A3 EP1217110A3 (fr) 2003-02-12

Family

ID=4569788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01130105A Withdrawn EP1217110A3 (fr) 2000-12-22 2001-12-19 Dispositif de filage

Country Status (3)

Country Link
US (1) US20020152739A1 (fr)
EP (1) EP1217110A3 (fr)
JP (1) JP2002201535A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103215700A (zh) * 2013-04-18 2013-07-24 武汉纺织大学 一种生产花式纱的涡流复合纺纱方法
CH708164A1 (de) * 2013-06-14 2014-12-15 Rieter Ag Maschf Spinndüse sowie damit ausgerüstete Spinnstelle einer Luftspinnmaschine.
CN104619898A (zh) * 2012-09-14 2015-05-13 里特机械公司 粗纱机械的纺纱站
CN107916474A (zh) * 2016-10-05 2018-04-17 里特机械公司 用于喷气纺纱机纺纱喷嘴的纤维导向元件以及操作喷气纺纱机的方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005105430A (ja) * 2003-09-29 2005-04-21 Murata Mach Ltd 紡績機
BG111020A (bg) * 2011-08-24 2013-02-28 ЕТ-"Д-А-Динко Бахов" Метод и устройство за изпридане на прежда с въздушен вихър
BG111715A (bg) * 2014-03-05 2015-10-30 Динко Бахов Метод и устройство за получаване на прежда от щапелни влакна
BG111723A (bg) * 2014-03-20 2015-10-30 Динко Бахов Метод и устройство за изпридане на прежда от щапелни влакна
BG111812A (bg) * 2014-09-02 2016-04-28 Динко Бахов Метод и устройство за изпридане на прежда с въздушен вихър
BG111827A (bg) * 2014-09-24 2016-03-31 Динко Бахов Метод и устройство за изпридане на прежда от щапелни влакна
CH712489A1 (de) * 2016-05-26 2017-11-30 Rieter Ag Maschf Garnbildungselement für eine Vorspinnmaschine sowie damit ausgerüstete Vorspinnmaschine.
DE102020133359A1 (de) * 2020-12-14 2022-06-15 Saurer Spinning Solutions Gmbh & Co. Kg Multifunktionsdüse für eine Spinnmaschine

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Publication number Priority date Publication date Assignee Title
US4509321A (en) * 1982-05-04 1985-04-09 Toray Industries, Inc. Apparatus for manufacturing fasciated yarn
DE4225243A1 (de) * 1991-07-30 1993-02-04 Murata Machinery Ltd Spinnvorrichtung
JPH07173727A (ja) * 1993-12-20 1995-07-11 Murata Mach Ltd 空気紡績装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0465535A (ja) * 1990-07-04 1992-03-02 Murata Mach Ltd 紡績装置
US6782685B2 (en) * 2000-12-22 2004-08-31 Maschinenfabrik Rieter Ag Apparatus for producing a core spun yarn

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509321A (en) * 1982-05-04 1985-04-09 Toray Industries, Inc. Apparatus for manufacturing fasciated yarn
DE4225243A1 (de) * 1991-07-30 1993-02-04 Murata Machinery Ltd Spinnvorrichtung
JPH07173727A (ja) * 1993-12-20 1995-07-11 Murata Mach Ltd 空気紡績装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10, 30. November 1995 (1995-11-30) & JP 07 173727 A (MURATA MACH LTD), 11. Juli 1995 (1995-07-11) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104619898A (zh) * 2012-09-14 2015-05-13 里特机械公司 粗纱机械的纺纱站
CN104619898B (zh) * 2012-09-14 2017-06-06 里特机械公司 粗纱机械的纺纱站
CN103215700A (zh) * 2013-04-18 2013-07-24 武汉纺织大学 一种生产花式纱的涡流复合纺纱方法
CN103215700B (zh) * 2013-04-18 2016-01-06 武汉纺织大学 一种生产花式纱的涡流复合纺纱方法
CH708164A1 (de) * 2013-06-14 2014-12-15 Rieter Ag Maschf Spinndüse sowie damit ausgerüstete Spinnstelle einer Luftspinnmaschine.
CN107916474A (zh) * 2016-10-05 2018-04-17 里特机械公司 用于喷气纺纱机纺纱喷嘴的纤维导向元件以及操作喷气纺纱机的方法
EP3309281A1 (fr) * 2016-10-05 2018-04-18 Maschinenfabrik Rieter AG Élément de guidage fibres pour jet de filature d'un métier à tisser à jet d'air et procédé de fonctionnement d'un métier à tisser à jet d'air
CN107916474B (zh) * 2016-10-05 2021-08-31 里特机械公司 用于喷气纺纱机纺纱喷嘴的纤维导向元件以及操作喷气纺纱机的方法

Also Published As

Publication number Publication date
JP2002201535A (ja) 2002-07-19
US20020152739A1 (en) 2002-10-24
EP1217110A3 (fr) 2003-02-12

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