EP0387009A2 - Procédé et dispositif pour rattacher des fils textiles - Google Patents

Procédé et dispositif pour rattacher des fils textiles Download PDF

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Publication number
EP0387009A2
EP0387009A2 EP90302389A EP90302389A EP0387009A2 EP 0387009 A2 EP0387009 A2 EP 0387009A2 EP 90302389 A EP90302389 A EP 90302389A EP 90302389 A EP90302389 A EP 90302389A EP 0387009 A2 EP0387009 A2 EP 0387009A2
Authority
EP
European Patent Office
Prior art keywords
yarn
package
piecing
winding
sucking
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.)
Ceased
Application number
EP90302389A
Other languages
German (de)
English (en)
Other versions
EP0387009A3 (fr
Inventor
Takashi Iwade
Tadahiko Okubo
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.)
Toray Engineering Co Ltd
Original Assignee
Toray Engineering Co 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
Application filed by Toray Engineering Co Ltd filed Critical Toray Engineering Co Ltd
Publication of EP0387009A2 publication Critical patent/EP0387009A2/fr
Publication of EP0387009A3 publication Critical patent/EP0387009A3/fr
Ceased 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
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing

Definitions

  • the present invention relates to a yarn piecing method and a yarn piecing apparatus used in textile machines such as open-ended spun yarn spinning machines, and fasciated spun yarn spinning machines and in which a spun yarn spun by and delivered from a yarn forming means and another yarn withdrawn from a yarn package on which the spun yarn is wound are pieced to each other.
  • textile machines such as open-ended spun yarn spinning machines or fasciated spun yarn spinning machines include a drafting means, a yarn forming means, a yarn taking-up means, a yarn winding means, and the like.
  • a spun yarn such as, a fasciated spun yarn is spun in the yarn forming means and then wound on a yarn package by the yarn winding means.
  • the yarn piecing operation includes the steps of stopping a yarn winding means once, sucking a spun yarn delivered from a yarn forming means (referred to as a first yarn hereafter) by a first yarn sucking means provided on a yarn piecing apparatus; withdrawing a yarn from a yarn package (referred to as a second yarn hereafter) by a second yarn sucking means; and piecing the first and second yarn to each other by carrying the two yarns to a yarn piecing means.
  • a yarn spun by and delivered from a yarn forming means during a yarn piecing opeation is sucked and stored in a yarn storing means provided between a yarn taking up means and the yarn piecing means. Then, when the yarn piecing operation is completed, the non-rotated yarn package is restarted to rotate in such a way that the rotational speed thereof is rapidly increased with a predetermined acceleration to take out the yarn stored in the yarn storing means. Thereafter, the rotational speed of the yarn package is changed to a predetermined yarn winding speed to wind up a spun yarn delivered from the yarn forming means.
  • the time required to piece yarns is very short, for example, 0.1 to 0.3 second, therefore, the yarn can be sufficiently stored in the yarn storing means without providing a yarn storing means having a relatively longer length.
  • the time required for piecing yarns is usually 0.4 to 0.7 second, longer than the previous method. Accordingly, the amount of yarn stored in the yarn storing means is increased.
  • a yarn storing means having an extremely large capacity for storing yarn is required to be provided when intending to store the yarn produced during the time in which the rotational speed of the yarn package reaches a predetermined yarn winding speed from a non-rotated condition and the yarn produced during the yarn piecing operation.
  • a yarn piecing method in which a first yarn, spun by and delivered from a yarn forming device at a predetermined constant speed, and a second yarn, withdrawn from a yarn package on which the yarn is wound, are pieced to each other, the yarn piecing method comprising the steps of withdrawing the second yarn from the yarn package by a predetermined length, piecing the second yarn with the first yarn, and starting rotation of the yarn package before a yarn piecing operation is completed.
  • a yarn piecing apparatus which comprises a unit travelling along a machine frame provided with at least a yarn forming means and yarn winding means thereon, the travelling unit being provided with at least a yarn piecing means, a first-yarn sucking means, a second-yarn sucking means, a yarn package driving means, and a second-yarn picking-up means, characterized in that a yarn storing means is further provided on the travelling unit located at a portion between the yarn piecing means and the yarn winding means provided on the machine frame.
  • This embodiment relates to a textile machine with a yarn piecing means thereon.
  • a drafting means 1 including back rollers 11, middle rollers 12 and front rollers 13 is provided on a machine frame 10.
  • the back rollers 11 are provided with a stopping mechanism for stopping rotation by separating the rollers from a driving shaft (not shown).
  • a yarn forming means 2 is also provided in the machine frame 10 adjacent to the front rollers 13 of the drafting means 1.
  • a staple fibre bundle delivered from the front rollers 13 is sucked into it and formed into a fasciated spun yarn, for example, by applying a whirling force generated by compressed air onto the staple fibre bundle.
  • a yarn forming means as shown in Japanese Unexamined Patent Publication No. 63-243335 can be used in the present invention.
  • a yarn taking-up means 3 is also provided. It is arranged underneath the yarn forming means 2 with a predetermined space therebetween.
  • the yarn taking-up means 3 includes a driving roller 31 and a nip roller 32 having a small width. One end of the rotating shaft thereof is supported by a suitable bearing. The means 3 can take up a spun yarn delivered from the yarn forming means 2 at a predetermined speed.
  • a yarn storing means 4 is provided and arranged underneath and adjacent to the yarn taking-up means 3.
  • the yarn storing means 4 includes a yarn sucking tube 41 having a substantially flat rectangular cross-sectional configuration. One end is opened to a position through which the spun yarn passes while the opposite end is connected to a pneumatic duct 42 with a negative pressure source (not shown).
  • a tensioning means 5 for applying a suitable tension to a spun yarn is provided underneath the yarn storing means 4 and includes a yarn tenser 51, a cutter, a slab catcher, or the like.
  • a yarn winding means 6 is provided underneath the yarn tensioning means 5 and includes a driving roller 61 connected to a line shaft through a clutch mechanism and provided with a groove on a peripheral surface thereof for traversing a yarn to be wound on a package and a cradle, rotatably supporting a yarn bobbin and having a pressuring means whereby the yarn bobbin is attached to a surface of the driving roller 61 with a predetermined surface pressure to wind the spun yarn delivered from the yarn taking-up means 3 on the yarn bobbin.
  • a yarn producing unit includes a drafting means 1, a yarn forming means 2, a yarn taking-up means 3, a yarn storing means 4, a yarn tensioning means 5, and a yarn winding means 6, and a plurality of the yarn producing units are arranged in a longitudinal direction of a textile machine frame 10 with a predeter­mined space therebetween.
  • a yarn piecing apparatus 7 i.e., a traveling unit, is provided in the machine frame 10 and travels along rails 10a and 10b arranged in a longitudinal direction of the machine frame 10 to piece yarns on a yarn producing unit in which yarn breakage occurs.
  • a splicer 71 is provided on the traveling unit 70 and arranged between the tensioning means 5 and yarn winding means 6 as explained above to piece a first yarn delivered from the yarn forming means 2 and a second yarn withdrawn from a yarn package on which a spun yarn is wound.
  • the splicer 71 is fixedly mounted on a traveling unit 70 by a bracket 93 and includes a yarn guiding plate for guiding a yarn to a predetermined place at which the yarn piecing operation will be carried out, yarn gripping needles for gripping the first and the second yarn, and a yarn piecing means.
  • a first-yarn sucking means 72 is provided pivotally mounted on the traveling unit 70, it swings around a rotating rod 90 having a hollow tube 96 therein, one end thereof being connected to a negative pressure source (not shown), for example, a blower.
  • the another end of the hollow tube 96 is connected to an opening portion 95 of the first yarn sucking means 72 to form a yarn sucking aperture.
  • the sucking aperture can move between a yarn sucking portion (A) beneath the yarn taking-up means 3 and a waiting portion (B) beneath the yarn splicer 71 so the yarn delivered from the yarn taking-up means 3 is sucked into the sucking means 72 as a first yarn and thus the first yarn is carried to a yarn piecing portion of the splicer 71.
  • a second-yarn sucking means 73 is provided pivotally mounted on the unit 70. It swings around a rotating rod 92 having a hollow tube 97 therein, one end thereof being connected to a negative pressure source (not shown), for example, a blower.
  • the other end thereof is formed as a yarn sucking aperture 98 having the same width as that of the yarn package and is connected to a negative pressure source as mentioned above through the hollow tube 97.
  • the sucking aperture 98 thereof can move between a yarn sucking portion (C) adjacent to a yarn package 80 provided on a cradle 62 and a waiting portion (D) beneath the yarn splicer 71.
  • a roller driving means 74 includes an arm 74a pivotally mounted on the unit 70, utilizing a bearing means, a roller 74b rotatably mounted on one end of the arm 74a, a cylinder for rotating the arm 74a (not shown), and an electric motor such as an induction motor, or a pulse motor (not shown) for rotating the roller both forward and reverse.
  • the driving roller 61 of the yarn winding means 6 can be rotated both forward and reverse.
  • a yarn storing means 75 is provided on the traveling unit arranged between the yarn winding means 6 and the yarn splicer 71 and includes a yarn sucking tube 75a, one end thereof being close to a yarn passage, being cut and opened to form a yarn sucking aperture, while the longitudinal direction thereof being perpen­dicular to a yarn traveling direction which is vertical, and another end of the yarn sucking tube 75a is connected to a negative pressured source (not shown), for example, a blower.
  • a yarn gripping means 76 is also provided on the unit 70 and arranged adjacent to an upper portion of the yarn storing means 75.
  • the yarn gripping means 76 includes a supporting means 76a, a solid portion 76b for gripping yarns fixedly mounted on the supporting means 76a, a movable portion 76c for gripping yarn and slidably mounted on the solid portion 76b and solid by an electric actuator (not shown), and a detector 76d for detecting a yarn.
  • the yarn gripping means 76 When a yarn withdrawn from the yarn package 80 is detected, the yarn is gripped by the yarn gripping means 76.
  • a yarn picking-up means 77 is further provided pivotally mounted on the unit 70 through a rotatable rod 91. It can move between a yarn pulling up position (E) above the yarn splicer 71 and a waiting position (F) beneath the yarn sucking means 75 in accordance with a rotation of the rod 91, whereby a yarn between the yarn gripping means 76 and the second yarn sucking means 72 can be picked up and carried to a yarn piecing portion of the splicer 71.
  • the yarn is withdrawn from the package by rotating it in an opposite direction to the normal yarn winding direction with the roller driving means 74.
  • the yarn length (L) stored in the yarn storing means 75 at that time must be the sum of the yarn length (l1) wound on the yarn package during a time in which the rotation of the yarn package reaches a predetermined speed from the non-rotated condition and a yarn length (l2) corre­sponding to an error.
  • the yarn length (l2) should be determined taking into account the accuracy of the electric motor of the roller driving means 74 or inverter for controlling the rotation of the motor and the variation of the yarn length withdrawn from the package depending upon a diameter of the yarn package 80, yarn traversing position, yarn traversing width, or the like.
  • the length (l2) can be reduced and can be set at the range of 10 to 50 cm.
  • the acceleration when the rotational speed of the yarn package is increased from the non-rotated condition to a predetermined yarn winding speed is preferably set at the maximum extent at which slippage does not occur between the roller 74b supported by a swing arm 74a of the roller driving means 74 and the driving roller 61 of the yarn winding means 6 or between the driving roller 61 and the yarn package 80.
  • the swing arm 74a is pivotably mounted on a rotatable rod 94 whereby the arm 74a can be swung in accordance with rotation of the rod 94.
  • a yarn piecing operation can be carried out with the same timing regardless of the yarn package size being small or large, by keeping the yarn length stored in the yarn storing means 75 constant and setting a driving force for driving the roller driving means 74 and a time for increasing the rotational speed of the package from a non-rotated condition to a predetermined rotational speed so as to keep the acceleration of the package constant regardless of the package size.
  • Measurement of yarn length stored in the yarn storing means can be carried out by counting the rotation of the roller driving means 74 or by a yarn detector provided at a predetermined position in the yarn storing means 75.
  • the timing for energizing the splicer may be varied depending upon the difference of acceleration of the yarn package keeping the yarn length stored in the yarn storing means constant.
  • the drafting means 1, the yarn winding means 6, and the yarn piecing means 7, are controlled by a con­trolling means comprising an input circuit for setting operations, a memory circuit, a comparator, a processing circuit, a operation directing circuit, or the like (not shown), or a microcomputer.
  • the drafting means 1 is restarted to supply a staple fiber bundle to the yarn forming means 2, whereby a fasciated spun yarn or open-ended spun yarn is spun out therefrom and delivered from the yarn taking-up means 3 at a predetermined speed.
  • the yarn delivered from a point formed between the driving roller 31 and the nip roller 32 is sucked by the yarn sucking aperture as a first yarn.
  • the second yarn sucking means 73 is rotated and the aperture thereof is moved to a position (C) for sucking the second yarn above the yarn package 80 while the roller driving means 74 is actuated, whereby the arm 74a is rotated enabling the roller 74b to be contacted to the drive roller 61 of the yarn winding means 6.
  • the yarn package 80 is rotated in an opposite direction to the yarn winding direction with the driving roller 61.
  • the second yarn sucking means 73 When the yarn is withdrawn from the yarn package 80 as a second yarn, the second yarn sucking means 73 is rotated to move back the yarn sucking aperture to a waiting position (D) (shown in Fig. 5-2).
  • an electro­magnetic actuator (not shown) is actuated to withdraw the movable portion 76c, whereby the yarn is fixedly gripped between the movable portion 76c and the solid portion 76b.
  • the yarn package is continuously rotated, whereby a certain amount of the yarn is withdrawn from the yarn package 80.
  • the yarn withdrawn from the yarn package 80 is sucked into the yarn sucking tube 75a of the yarn storing means 75 through an aperture thereof and stored in the yarn storing means in a U-like form (shown in Fig. 5-3).
  • the first-yarn sucking means 72 is rotated to move back the sucking aperture to the waiting position (B), thereby the yarn is carried to a yarn piecing portion of the splicer 71.
  • the roller driving means 74 is actuated to stop the rotation of the roller 74b (shown in Fig. 5-4).
  • the yarn carried to the yarn piecing portion of the splicer 71 in the operation as above is fixedly gripped by a gripping needle (not shown).
  • the yarn delivered from the yarn taking-up means 3 is sucked into the yarn storing means 4 in a U-shaped form.
  • the yarn between the yarn gripping means 76 and the second-yarn sucking means 72 is picked up by the rotating yarn picking-up means 77 to carry the yarn to the position (E) locating above the splicer 71, whereby a part of the yarn can be carried to the yarn piecing means, i.e., a splicer 71.
  • the roller driving means 74 is actuated simultaneously with or before the rotation of the yarn picking-up means, so the yarn package can be rotated in a yarn winding direction by the driving roller 61 of the yarn winding means 6 due to the rotation of the roller 74b.
  • the yarn package 80 is rotated with a predetermined acceleration when the package is started to rotate from the non-rotated condition and to the condition at which the package is rotated at a pre­determined speed.
  • This acceleration means the maximum acceleration not causing any slippage between the roller 76b and the driving roller 61 or between the driving roller 61 and the yarn package 80.
  • the yarn stored in the yarn storing means 75 is withdrawn therefrom gradually and wound on the yarn package again.
  • the first yarn delivered from the yarn taking-up means 3 and the second yarn withdrawn from the yarn package 80 are pieced to each other (shown in Fig. 5-5).
  • the yarn gripping means 76 is simultaneously actuated to project the movable por­tion 76c, whereby the yarn gripped by the yarn gripping means is released.
  • the yarn previously stored in the yarn storing means 75 is mostly wound up on the yarn package 80 and no yarn remains therein.
  • the rotating speed of the yarn package 80 already reaches a predetermined yarn winding speed (shown in Fig. 5-7).
  • the roller driving means 74 is actuated to rotate the arm 74a and to remove the roller 74b from the package 80, while the clutch of the yarn winding means 6 is actuated to couple the driving roller 61 with the line shaft, whereby the normal yarn winding operation is carried out.
  • the yarn of the yarn package can be wound with a predetermined winding tension simultane­ously with the completion of the yarn piecing operation, no snarling occurs in the yarn in the yarn piecing means.
  • the yarn winding speed of the yarn winding means 6 is faster by 2 to 3% than the yarn delivering speed of the yarn taking-up means 3, the yarn stored in the yarn storing means 4 during the yarn piecing operation, can be wound on the yarn package 80 (shown in Fig. 5-8).
  • a yarn piecing operation is carried out by withdrawing a predetermined amount of yarn from the yarn package and the package is rotated with a certain acceleration before the yarn piecing operation is completed.
  • the yarn can be wound on the yarn package simultaneously with the completion of the yarn piecing operation, enabling shortening of the length of the yarn storing means mounted on the machine frame and facilitating production of the same.
  • yarn piecing operation utilizing a splicer can be carried out during the time in which the rotational speed of the yarn package is increased from the non-rotated condition to the predetermined rotational speed and thus a yarn piecing operation with a splicer is possible by reforming a conventional textile machine provided with a knotter as a yarn piecing means.
  • occurrence of snarling can be effectively prevented on a yarn in the yarn piecing means because a suitable yarn tension is applied to the yarn between the yarn piecing means and the yarn package by the yarn storing means and the yarn can be wound on the package at predetermined yarn winding tension simultaneously with the completion of the yarn piecing operation.
  • the yarn piecing operation can be stably carried out by effecting the following: storing a yarn withdrawn from a yarn package in a yarn storing means provided between a yarn piecing means and the yarn package; winding again the yarn withdrawn from the yarn package on the yarn package on or just after the completion of the yarn piecing operation: making the amount of yarn withdrawn from the yarn package and stored in the yarn storing means constant regardless of a winding diameter of the yarn package; and making an acceleration ratio to rotate the yarn package approximately constant regardless of a winding diameter of the yarn package.
  • the yarn piecing method as mentioned above can be carried out by utilizing a yarn piecing apparatus mounted on a traveling unit moving along a machine frame and including a yarn piecing means, a first-yarn sucking means, a second-yarn sucking means, a roller driving means, and a yarn picking-up means.
  • the yarn piecing apparatus may be further provided with a yarn storing means used for the yarn piecing operation on the traveling unit arranged between the yarn piecing means and the yarn winding means provided on the textile machine frame.
  • a roller driving means 74 driven by a motor is provided in a yarn piecing apparatus and an arm 74a is pressed by a fluid cylinder with a predetermined pressure causing a roller 74b of the roller driving means 74 to be pressed against a driving roller 61.
  • the driving roller 61 has a clutch inside thereof and thereby the driving roller 61 can rotate freely due to the driving roller being separated from a driving shaft when a yarn piecing operation is carried out.
  • a cradle 62 is swang by the fluid cylinder to press a package 80 against the driving rolle 61 with a pressure of 6 kg which is higher than that in a normal yarn winding operation to rotate the roller 74 and thus the package 80 is rotated by the driving roller 61.
  • an inertial force GD2 of a bobbin, a package and a driving roller respectively will be given as follows; Item Diameter DG2 Bobbin 60 mm 0.00015 kgm2 Package 150 mm 0.011808 kgm2 Package 280 mm 0.146831 kgm2 Package 300 mm 0.193595 kgm2 Driving roller 82 mm 0.0048 kgm2
  • an accelerated time for the package 80 (a rising up time for the yarn winding speed) having a maximum torque without occurring a slip between the package 80 and the driving roller 61, can be calculated utilizing the data as follows; Item Diameter Accelerated time Bobbin 60 mm 0.01 sec Package 150 mm 0.15 sec Package 280 mm 0.54 sec Package 82 mm 0.62 sec
  • the accelerated time (a rising up time for the yarn winding speed) will become maximum when the diameter of the package is 300 mm in which the rotational number is minimum while the GD2 is maximum.
  • the accelerated time of the package (a rising up time for the yarn winding speed)
  • the slippage between the package 80 and the driving roller 61 will be prevented and thereby the yarn winding speed on the package can be risen with the same accelerating speed from one package condition the diameter thereof being 60 mm to another package condition the diameter thereof being 300 mm.
  • the yarn winding speed is risen linearly within 0.62 seconds by changing the frequency of the driving motor from 0 Hz to 60 Hz utilizing an inverter.
  • the actual accelerated time of the package (a rising up time for the yarn winding speed) may be set at around 0.7 second taken errors into the account not to reduce the actual accelerated time of the package below 0.62 seconds.
  • Second embodiment of the present invention may be considered as follows;
  • a feed back control is not required, although in order to improve its accuracy, a feed back control may be adopted in which a frequency of an inverter is changed with response to a detected signal with respect to a rotation number of an output axis of a motor.
  • a DC motor is utilized and the voltage to be supplied thereto may be changed in accordance with a detected rotational speed of the motor or in which a pulse motor, a survo-motor or the like is used.
  • the third embodiment of the present invention may be considered as follows;
  • a method in which the yarn winding speed will be risen with a constant accelerated speed is disclosed, although another method may also be used in which a torque of the driving motor for the driving roller 61 is set at a constant level and utilizing an amount of a yarn withdrawn from the yarn storing means corresponding to an amount of a yarn stored in the yarn storing means, calculated from the accelerated time as mentioned above, as a reference, a large amount of yarn is stored in the yarn storing means when the diameter of the package is small, while a small amount of yarn is stored therein when the diameter of the package is large.
  • the fourth embodiment of the present invention also may be considered as follows;
  • the accelerated speed can be calculated by measuring a yarn length (yarn length stored in the yarn storing means) which is withdrawing from the yarn storing means 75.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19900302389 1989-03-07 1990-03-06 Procédé et dispositif pour rattacher des fils textiles Ceased EP0387009A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP55729/89 1989-03-07
JP1055729A JPH0680215B2 (ja) 1989-03-07 1989-03-07 糸継ぎ方法

Publications (2)

Publication Number Publication Date
EP0387009A2 true EP0387009A2 (fr) 1990-09-12
EP0387009A3 EP0387009A3 (fr) 1991-06-12

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EP19900302389 Ceased EP0387009A3 (fr) 1989-03-07 1990-03-06 Procédé et dispositif pour rattacher des fils textiles

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EP (1) EP0387009A3 (fr)
JP (1) JPH0680215B2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484601A1 (fr) * 1989-08-10 1992-05-13 Toray Engineering Co., Ltd. Procédé de rattachage d'un fil cassé dans un métier à filer
US5327712A (en) * 1991-07-21 1994-07-12 Maschinenfabrik Rieter Ag Method and apparatus for intermediate yarn storage during renewed spun thread joining

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005022187A1 (de) * 2005-05-13 2006-11-16 Saurer Gmbh & Co. Kg Anspinnverfahren an einer Luftspinnmaschine sowie Spinnvorrichtung und Luftspinnmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55107521A (en) * 1979-02-06 1980-08-18 Toray Ind Inc Automatic yarn connecting method in spinning frame
GB2066316A (en) * 1977-12-28 1981-07-08 Murata Machinery Ltd Yarn splicing apparatus
JPS6290331A (ja) * 1985-10-15 1987-04-24 Toray Ind Inc 自動糸掛装置
JPS63243335A (ja) * 1987-03-27 1988-10-11 Toray Eng Co Ltd 結束紡績機の糸形成装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850729C2 (de) * 1978-11-23 1986-03-13 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und Vorrichtung zum Anspinnen eines Fadens
JPH0819578B2 (ja) * 1987-05-01 1996-02-28 東レエンジニアリング株式会社 結束紡績機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066316A (en) * 1977-12-28 1981-07-08 Murata Machinery Ltd Yarn splicing apparatus
JPS55107521A (en) * 1979-02-06 1980-08-18 Toray Ind Inc Automatic yarn connecting method in spinning frame
JPS6290331A (ja) * 1985-10-15 1987-04-24 Toray Ind Inc 自動糸掛装置
JPS63243335A (ja) * 1987-03-27 1988-10-11 Toray Eng Co Ltd 結束紡績機の糸形成装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 300 (C-449)(2747) 29 September 1987, & JP-A-62 90331 (TORAY IND INC) 24 April 1987, *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 49 (C-565)(3397) 03 February 1989, & JP-A-63 243335 (TORAY ENG CO LTD) 11 October 1988, *
PATENT ABSTRACTS OF JAPAN vol. 4, no. 166 (C-31)(648) 18 November 1980, & JP-A-55 107521 (TORAY K.K.) 18 August 1980, *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484601A1 (fr) * 1989-08-10 1992-05-13 Toray Engineering Co., Ltd. Procédé de rattachage d'un fil cassé dans un métier à filer
US5327712A (en) * 1991-07-21 1994-07-12 Maschinenfabrik Rieter Ag Method and apparatus for intermediate yarn storage during renewed spun thread joining

Also Published As

Publication number Publication date
EP0387009A3 (fr) 1991-06-12
JPH02234930A (ja) 1990-09-18
JPH0680215B2 (ja) 1994-10-12

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