EP0837164B1 - Dispositif pour conférer une fausse torsion à un fil - Google Patents

Dispositif pour conférer une fausse torsion à un fil Download PDF

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Publication number
EP0837164B1
EP0837164B1 EP97116186A EP97116186A EP0837164B1 EP 0837164 B1 EP0837164 B1 EP 0837164B1 EP 97116186 A EP97116186 A EP 97116186A EP 97116186 A EP97116186 A EP 97116186A EP 0837164 B1 EP0837164 B1 EP 0837164B1
Authority
EP
European Patent Office
Prior art keywords
drive
rotating
pulley
yarn
false twisting
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.)
Expired - Lifetime
Application number
EP97116186A
Other languages
German (de)
English (en)
Other versions
EP0837164A1 (fr
Inventor
Kouichirou Oshiumi
Kiyotaka Kawashima
Yoshihiro Kino
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
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
Priority claimed from JP27496496A external-priority patent/JP3223811B2/ja
Priority claimed from JP07907497A external-priority patent/JP3144338B2/ja
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP0837164A1 publication Critical patent/EP0837164A1/fr
Application granted granted Critical
Publication of EP0837164B1 publication Critical patent/EP0837164B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • 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
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/085—Rollers or other friction causing elements between crossed belts

Definitions

  • the present invention relates to a device according to the preamble of claim 1.
  • a yarn false twisting device as disclosed in US-A-4,047,373 and discussed in DE-A-3120199 is a belt-type twister having endless belts supported on pulleys.
  • the drive pulleys may be driven synchronously through synchronous motors to insure that the belts run at the same surface velocity.
  • the object underlying the invention is therefore to provide an arrangement resulting in the possibility to change the intersection angle of the belts easily.
  • Figure 1 shows a first embodiment where the yarn false twisting device of the present invention is utilized on a belt type false twister of a draw texturing machine.
  • a belt type false twister 41 is provided with a pair of rotating members comprising a drive pulley 42 and free pulley 43 for sandwiching the processed yarn Y 1 and imparting a twist in the yarn Y 1 and a continuous belt 44 wound onto these.
  • a drive motor 46 connected directly to a shaft (drive shaft) 45 is arranged on the drive pulley 42.
  • a pair of rotating members are arranged such that the continuous belt 44 intersects with another continuous belt (not shown) at a predetermined angle and imparts a twist while delivering the processed yarn Y 1 by sandwiching it in the intersecting part 6 of the pair of continuous belts.
  • the drive pulley 42 comprises a circular disk shaped member having winding surface 47 for the continuous belt 44 in the outer periphery and a shaft hole 48 for inserting the shaft 45 is formed in that shaft center.
  • the shaft 45 extends to a length in one direction from the drive pulley 42 and is supported so as to be able to freely rotate by a holder 49.
  • the holder 49 comprises an outer cylinder 50 and an inner cylinder 51 in contact with the inner wall of the outer cylinder 50.
  • the inner cylinder 51 has a long shape which extends from either end of the outer cylinder 50.
  • An arm 52 extending in the radial direction of the outer cylinder 50 is formed on the end of and as a single unit with the drive pulley 42 side of the outer cylinder 50 and supports the free pulley 43 so that it is able to rotate freely.
  • Bearings 53,54 that support both ends of the shaft 45 are arranged on both ends of the inner cylinder 51.
  • the shaft 45 has a large diameter part from the drive pulley 42 end to the part which is slightly inserted in the outer cylinder 50 and a small diameter part from that position to the other end.
  • the drive motor 46 is positioned on the shaft small diameter part inside the inner cylinder 51.
  • the drive motor 46 may comprise a small brushless DC motor that generates a uniform torque from a low speed range to a high speed range and is arranged of a rotor 55 mounted on the shaft 45 and a stator 56 arranged in the vicinity of outer radial direction of the rotor 55.
  • a drive part 57 for suitably supplying exciting current to the winding (not shown) of the stator 56 is provided in the inner cylinder 51.
  • the rotor 55 is connected to the step part 58 formed on the shaft 45 with a reduced diameter.
  • the stator 56 is supported on the inner cylinder 51 via a cylindrical bush 59.
  • the bush 59 is fitted to the inner wall of the inner cylinder 51 and is positioned in the axial direction with the tip in contact with small stepped part 60 formed in the inner cylinder 51.
  • a cup part 61 for supporting the stator 56 is formed on the inner wall of the bush 59.
  • the drive part 57 is connected to the stator 56 in the vicinity of the stator 56 and that an electrical feeding and control cable 62 extends to the other end of the inner cylinder 51 and extends to the exterior via a socket 63 arranged at the vicinity of the other end.
  • the dirve part 57 comprises five blocks being a power circuit 64, current control circuit 65, logic circuit 66, set comparison circuit 67 and power supply circuit 68, and sends and receives signals as shown by the bold arrows in the Figure.
  • the power circuit 64 controls the current flowing in the winding of the stator 56 and applies an exciting current to the winding by transistors (not shown in the drawing) comprising the circuit repeating an ON-OFF sequence in a uniform order.
  • the current control circuit 65 controls the current that changes due to the load such that no unevenness is generated in the set rotational speed.
  • the logic circuit 66 receives feedback signals from a magnetic element arranged on the stator 56 and determines the excitation order of the winding by detecting the position of the rotor 56.
  • the motor rotation speed is detected by this feedback signal and executes commands (start/stop, brake/run etc.) to the motor.
  • the set comparison circuit 67 compares the speed setting signal with the rotation speed signal of the motor and if the motor speed is higher than the set speed, decreases the output to the motor and if lower, increases the output to the motor.
  • the power supply circuit 68 supplies from the commercial power source the necessary voltage for driving each of the control circuits 64,67 and the motor.
  • the information (output wave shape and the like) of the drive part 57 is sent to the control unit 69 that controls the operations of the nip twister 41 and continuously inspects the motor load and the like.
  • the base frame 70 is arranged on the extended part of the inner cylinder 51.
  • a contact pressure application device (not shown in the drawing) that adjusts the contact pressure on the processed yarn Y 1 by rotatably moving the entire device about the shaft 45 of the drive pulley 42, and a separation device (not shown) that separates the pair of belts 43 when a yarn breakage occurs are arranged on the base frame 70.
  • the other drive pulley which has been omitted from the drawing is comprised similarly to the drive pulley 42 described above.
  • the axial direction of the drive pulley 42 and free pulley 43 may be changed and the changing of the cross over angle of the continuous belts relating to the setting of the twist count, twisting tension and untwisting tension may be extremely easily performed.
  • the utility of the device is excellent.
  • the rotation state of the drive pulley 42 of each spindle may be continuously inspected thus preventing beforehand the occurrence of trouble such as that caused by abnormal rotation.
  • the change in rotor rotation speed and load may be detected in real time by that output wave form thus reliably preventing problems.
  • the drive motor 46 is incorporated in the holder 49, there is no part which projects from the holder 49 a further reduction in the space used is achieved and the number of bearings 53,54 of the shaft 45 may be the least necessary (two) thus achieving an overall reduction in the number of parts.
  • the drive motor 46 By arranging the drive motor 46 on each of the pair of drive pulleys 42, the rotation direction of the pulley (running direction of the continuous belt 43) may be easily changed and the selection of the twist direction (Z-twist or S-twist) may be easily performed.
  • FIG. 3 shows another embodiment of the present invention with this twister 101 comprising an arrangement similar to the previous embodiment of a pair of rotating members comprising a drive pulley 42 and free pulley (not shown) and continuous belts (not shown) wound between these and arranged with a drive motor (brushless DC motor) 103 directly linked to a drive shaft 102 of a drive pulley 42.
  • a holder 104 of the shaft 102 is arranged with an outer cylinder 106 supported on a base frame 105 and an inner cylinder 107 shorter than the outer cylinder 106.
  • the end of the inner cylinder 107 is contained by a bolt 108 being screwed into it.
  • An arm 109 extending in the radial direction of the outer cylinder 106 is formed as a single unit with the outer cylinder 106.
  • the shaft 102 is formed shorter than that of the previous embodiment with the space between the bearings 110,111 arranged at close to both ends of the inner cylinder 107 also being shorter.
  • the small diameter part 102a of the shaft 102 is formed from the position close to the attachment with the drive pulley 42.
  • a rotor 112 and a stator 113 of the drive motor 103 are arranged on this small diameter part 102a.
  • the entire length of the drive motor 103 is longer than the previous embodiment and the length is proportional to approximately 2/3 of the shaft small diameter part 102a.
  • the bush 114 that holds the stator 113 is approximately the same length as the drive motor 103.
  • the sensor part 115 of the drive part is arranged inside the inner cylinder 107.
  • a spinning system 72 that spins a spun yarn Y 2 is provided on each spindle 71 of the spinning machine.
  • the spinning system 72 is comprised of a draft part 23 that draws out the continuously supplied sliver at a predetermined ratio (for example, 100 times), and an air jet nozzle 25 and nip rollers 73 that apply a twist in opposite directions to each other at the exit of the front roller 24.
  • the air jet nozzle 25 bundles the drafted sliver due to the high speed rotating current (air jet).
  • the roller type false twister 73 comprise a pair of roller members (rotating members) 28,29 and the drive shafts 74,75 of those are supported on a support rail 76 extending in the direction of the aligned spindles in a crossed-over state.
  • the bundled sliver is sandwiched between the pair of roller members 28,29 and a fasciated spun yarn Y 2 is formed by the wrapping of parallel fibers around the periphery of the core staple fibers due to the imparting of a twist in the direction opposite the air rotation direction of the nozzle 25.
  • drive motors (brushless DC motors) 77,78 are arranged directly linked to each of the shafts 74,75 of these roller members 28,29.
  • spun yarn Y 2 is wound as a package of a predetermined shape while being traversed by a winding system (not shown).
  • a delivery roller 81 that sandwiches the spun yarn Y 2 by an upper and lower roller 79,80 and a guide roller 82 that guides the yarn path from the sloping direction to the lower winding system are arranged in the space downstream from the spinning system 72.
  • the winding speed of the winding system is set so as to be approximately equivalent to the spinning speed of the spinning system 72 and an arrangement which prevents too much tension being applied to the yarn is present between the guide roller 82 and the package.
  • a yarn clearer 83 for removing defects of the spun yarn Y 2 is arranged below the guide roller 82 and a detection groove 83a connects with the yarn path at the front side of the cover plate 95 arranged in the direction in which the spindles are arranged.
  • the roller members 28,29 comprise flange plates 84 forming end surfaces at both shaft ends, thin rubber cylinders 85 that span between the outer periphery of both flange plates 84 and which are suitably swollen in the radial direction, shafts 74,75 which extend in one direction and which pass through a stay 86 directly connecting both pairs of flange plates 84, and a holder 88 that holds the extended part of the shafts 74,75 via a pair of bearings 87, and overall, has a holler rubber roller shape.
  • the shafts 74,75 are fixed by a bolt 89 to one of the flange plates 84.
  • the holder 88 is mounted on a support rail 76 in a predetermined direction (angle) by a bolt or the like via a bracket 90.
  • the shaft 74 extends outwards from the holder 88 and the drive motor 77 is arranged on that extended part.
  • the drive motor 77 comprises a rotor 91 attached to the shaft extended part and a stator 92 arranged in the outer radial direction area of the rotor 91, and not only support the stator 92 but are also stored in the cylindrical case 94 that supports the shaft extended part via a pair of bearings 93.
  • One side of the case 94 is connected to the end of the holder 88.
  • the drive part (not shown) detailed in the previous embodiment is provided on the outer part of the drive motor 77 and is connected to a control unit (not shown) that manages the operation of the spinning machine.
  • the changing of the contact angle between the roller members 28,29 may be easily performed by simply exchanging the bracket 90 or adjusting the mounting direction. There is no generation of uneven rotation and as any rotation abnormality caused by damage to the bearings 87,93 can be quickly detected, problems may be prevented before they occur.
  • 210 is a basal member comprising an inner cylinder 210a, a first outer cylinder 210b mounted on the periphery of the inner cylinder 210a and arranged with a bearing 211, and a second outer cylinder 210c above the first outer cylinder 210b and similarly mounted on the periphery of the inner cylinder 210a.
  • the basal member 210 is arranged on a frame F being a support member for supporting the false twister, via bearing 211 arranged on the first outer cylinder 210b.
  • 212 is an approximately cylindrical middle member of which the lower end may is removably mounted on a flange 210b' of the first outer cylinder 210b by a suitable fixing tool such as a screw or nut/bolt or the like.
  • a plurality of fins 212a are arranged on the periphery of the middle member 212 along the axial direction of the middle member 212.
  • 213 is an approximately cylindrical tip member removably mounted on the upper inside of the middle member 212 by a suitable fixing tool such as a screw or nut/bolt or the like.
  • a rotating shaft (drive shaft) 216 which freely rotates is supported by a bearing 214 arranged inside the tip member 213 and a bearing 215 mounted on the upper inside of the inner cylinder 210a of the basal member 210.
  • 217 is a first pulley mounted on the upper end of the rotating shaft 216.
  • the holder is comprised of the upper basal member 210, middle member 212 and tip member 213.
  • m1 are a plurality of drive coils arranged at suitable intervals on the inside of the approximately cylindrical middle members 212.
  • m2 is a rotor magnet mounted on the rotating shaft 216 and is positioned on the inside of the drive coil m1.
  • the brushless motor (drive motor) M comprises as the motor part, the drive coils m1 mounted on the middle member 212 and the rotor magnet m2 mounted on the rotating shaft 216. In this way, the brushless motor M is arranged inside the holder.
  • 218 is an arm member mounted as a single unit with the middle member 212 or on the middle member 212.
  • a support frame 218a is formed on the free end of the arm member 218.
  • 219 is a second pulley support arm mounted on the support frame 218a of the arm member 218 and a freely rotating shaft 222 parallel with the rotating shaft 216 is arranged on a bearing 221 incorporated in a bearing frame 220 mounted on the second pulley support frame 219.
  • a second pulley 223 is mounted on the freely rotating shaft 222 and a continuous belt 224, as false twist application means, is stretched between the first pulley 217 mounted on the upper end of the rotating shaft 216 and the second pulley 223 mounted on the freely rotating shaft 222.
  • the rotating member is comprised of the first pulley 217, second pulley 223 and false twist belt 224.
  • the rotating shaft 216 is rotated by the driving of the rotor magnet m2 because of a rotational magnetic field being generated in the periphery of the rotor magnet m2. Accordingly, the false twist belt 224 stretched between the first pulley 217 mounted on the rotating shaft 216 and the second pulley 223 mounted on the freely rotating shaft 222, runs in a suitable direction due to the rotation of the first pulley 217 mounted on the rotating shaft 216.
  • the middle member 212 where a plurality of fins 212a are formed along the axial direction, is made of aluminium or the like which excels at heat radiation.
  • the heat which the brushless motor M incorporated in the middle member 212 generates may be efficiently removed and accordingly, the durability of the false twist member T including the bearings 214,215 arranged in the vicinity of the brushless motor M may be improved.
  • the arm member 218 mounted as a single unit with the middle member 212 or on the middle member 212 out of aluminium or the like which excels at heat radiation, the radiation abilities may be improved.
  • the tip member 213 on which is arranged the bearing 214 that supports the rotating shaft 216 and also the basal member 210 on which is arranged the bearing 215 that supports the the rotating shaft 216 are made of high strength iron or steel or the like in order to increase the strength.
  • the drive part support member T' of the false twist member T that supports the rotating shaft 216 driven by the brushless motor M comprising the three splittable cylindrical members which may be removed from each other being the basal member 210, middle member 212 and tip member 213, when the rotating shaft 216 and bearings 214,215 are to be exchanged due to abrasion or wear, the rotating shaft 216 and bearings 214,215 may be exchanged by removing the tip member 213 and middle member 212 or the like. Accordingly, on comparison of the drive part support member T' of the false twist member T with a device being a single unit, the maintenance of the false twist member including the exchange of rotating shaft 216 and bearings 214,215 is simple.
  • a false twist device which is provided with a pair of false twist belts 224 as false twist application members that are stretched between the first pulley 217 and second pulley 223 and which imparts a false twist in the yarn y and advances the yarn y by sandwiching the yarn y due to that pair of false twist belts 224
  • the false twist device may be arranged by the arrangement of the false twist member T by arranging a false twist disc or false twisting drum as a false twist application member on the rotating shaft 16 and positioning the pair of false twist members T having a false twisting drum or disc such that the yarn y is sandwiched by the false twisting drums or discs.
  • the drive motor is incorporated in the holder, the number of parts and space used may be reduced. Furthermore, as the drive motor is directly linked to the drive shaft of the rotating member, a compact arrangement is possible as the transmission member such as a pulley or belt is unnecessary and a further reduction in the number of parts and space can be achieved.
  • the holder may be divided into the basal member, middle member and tip member, the maintenance of the false twist device is simple.
  • the middle member As fins are arranged on the periphery of the middle member and the middle member is formed of a material having excellent heat radiation properties, the heat generated by the motor may be efficiently removed and accordingly, the durability of the false twist member including the bearings arranged in the vicinity of the motor is increased.

Landscapes

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

Claims (7)

  1. Dispositif pour conférer une fausse torsion à un fil, présentant une paire d'éléments tournants (42, 43, 44 ; 28, 29) pour appliquer une torsion en prenant en sandwich un fil, un support (49) qui tient chacun des éléments tournants de façon qu'ils puissent tourner librement, et un moteur d'entraínement associé aux éléments tournants et incorporé dans le support d'au moins l'un des éléments tournants,
    caractérisé en ce que
    chacun des éléments tournants (42, 43, 44 ; 28, 29) présente un moteur d'entraínement (46 ; 77, 78) qui est directement relié à l'arbre menant (45, 74, 75) des éléments tournants.
  2. Dispositif pour conférer une fausse torsion à un fil selon la revendication 1, où le support peut être divisé en au moins trois éléments, à savoir un élément médian (212) présentant le moteur d'entraínement (M), un élément basique (210) monté sur une extrémité de l'élément médian et un élément de pointe (213) monté sur l'autre extrémité de l'élément médian.
  3. Dispositif pour conférer une fausse torsion à un fil selon la revendication 2, où l'arbre d'entraínement (216) qui tourne conjointement avec l'élément tournant correspondant (217, 223, 224) est supporté par l'élément basique (210) et l'élément de pointe (213).
  4. Dispositif pour conférer une fausse torsion à un fil selon les revendications 2 ou 3, où des ailettes (212a) sont formées sur la périphérie de l'élément médian (212), et l'élément médian est formé en un matériau excellent pour le rayonnement de la chaleur.
  5. Dispositif pour conférer une fausse torsion à un fil selon les revendications 1 à 4, où l'élément tournant comprend une poulie menante (42), une poulie tournant librement (43) et une courroie continue (44), deux paliers (53, 54) sont agencés dans le support (49), l'arbre menant (45) de la poulie menante (42) est maintenu de façon à pouvoir tourner librement sur ces paliers, le moteur d'entraínement (46) est agencé entre la paire de paliers (53, 54) et le rotor et le stator du moteur d'entraínement sont montés sur l'arbre menant (45) de la poulie menante (42) et sur le support (49) respectivement.
  6. Dispositif pour conférer une fausse torsion à un fil selon la revendication 1, où les éléments tournants (28, 29) sont réalisés sous forme de rouleaux en caoutchouc creux, chaque élément tournant comprenant
    un arbre menant (74, 75) et un support qui maintient l'arbre menant (74, 75) par un palier de telle sorte que l'arbre menant (74, 75) peut tourner librement.
  7. Dispositif pour conférer une fausse torsion à un fil selon l'une des revendication 1 à 6, où chaque élément tournant comporte un capteur pour détecter la vitesse de chaque élément tournant.
EP97116186A 1996-10-17 1997-09-17 Dispositif pour conférer une fausse torsion à un fil Expired - Lifetime EP0837164B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP274964/96 1996-10-17
JP27496496A JP3223811B2 (ja) 1996-10-17 1996-10-17 糸の仮撚装置
JP27496496 1996-10-17
JP07907497A JP3144338B2 (ja) 1997-03-13 1997-03-13 仮撚り装置
JP7907497 1997-03-13
JP79074/97 1997-03-13

Publications (2)

Publication Number Publication Date
EP0837164A1 EP0837164A1 (fr) 1998-04-22
EP0837164B1 true EP0837164B1 (fr) 2002-12-18

Family

ID=26420142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97116186A Expired - Lifetime EP0837164B1 (fr) 1996-10-17 1997-09-17 Dispositif pour conférer une fausse torsion à un fil

Country Status (5)

Country Link
EP (1) EP0837164B1 (fr)
KR (1) KR100339681B1 (fr)
CN (1) CN1077928C (fr)
DE (1) DE69717945D1 (fr)
TW (1) TW403795B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3147024B2 (ja) * 1997-03-07 2001-03-19 村田機械株式会社 仮撚り装置
EP1614781A1 (fr) * 2004-07-06 2006-01-11 Schärer Schweiter Mettler AG machine de fausse torsion
DE102009059052A1 (de) * 2009-12-15 2011-06-16 Wilhelm Stahlecker Gmbh Ringspinnvorrichtung mit Falschdralleinrichtung
CN102839453B (zh) * 2012-08-22 2017-04-05 陈子瑜 单锭驱动轮盘假捻纺纱的装置
CN105780235B (zh) * 2016-05-23 2019-07-05 山东天虹纺织有限公司 一种紧密赛罗包芯纱的加工装置
CN106435860B (zh) * 2016-12-01 2019-02-22 东华大学 一种在赛络纺中进行单纱预加捻的加工装置及方法
CN106757568B (zh) * 2017-03-22 2018-10-09 江南大学 一种同步异向加捻纺纱装置和纺纱方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047373A (en) * 1975-06-24 1977-09-13 Oda Gosen Kogyo Kabushiki Kaisha False-twisting method and apparatus for producing crimped filament yarns
US4051655A (en) * 1975-07-30 1977-10-04 Barmag Barmer Maschinenfabrik Aktiengesellschaft Friction false twister
CH653381A5 (de) * 1980-06-14 1985-12-31 Barmag Barmer Maschf Friktionsfalschdraller.
DE3120199C2 (de) * 1981-05-21 1984-05-30 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Riemchen-Texturieraggregat
DE3743708C2 (de) * 1987-12-23 1995-08-31 Temco Textilmaschkomponent Falschdralltexturieraggregat mit elektromotorischem Antrieb
JPH0796730B2 (ja) * 1992-08-31 1995-10-18 村田機械株式会社 仮撚装置

Also Published As

Publication number Publication date
KR19980032925A (ko) 1998-07-25
KR100339681B1 (ko) 2002-10-18
CN1180763A (zh) 1998-05-06
CN1077928C (zh) 2002-01-16
TW403795B (en) 2000-09-01
DE69717945D1 (de) 2003-01-30
EP0837164A1 (fr) 1998-04-22

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