US3807155A - Method and apparatus for joining yarns - Google Patents

Method and apparatus for joining yarns Download PDF

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Publication number
US3807155A
US3807155A US00014038A US1403870A US3807155A US 3807155 A US3807155 A US 3807155A US 00014038 A US00014038 A US 00014038A US 1403870 A US1403870 A US 1403870A US 3807155 A US3807155 A US 3807155A
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Prior art keywords
yarn
spool
free end
unwound
broken
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US00014038A
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English (en)
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T Miyazaki
M Saito
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Kanebo Ltd
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Kanebo Ltd
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    • 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
    • D01H15/013—Carriages travelling along the machines

Definitions

  • This invention relates to a method and an apparatus for joining broken yarns on a ring spinning frame, which is characterized by utilizing an improved means for unwinding a free end of yarn from a spool.
  • one of these joining methods utilizes a'supplementary yarn which is wound about a spool upon which is a broken yarn and thereafter, a free end of the supplementary yarn is joined with a fleece issued from a draft means of the spinning machine.
  • the other method comprises unwinding a free end of a broken yarn from the spool upon which it is wound and next, the thus unwound free end of the broken yarn is joined with the above-mentioned fleece without utilizing any supplementary yarn.
  • the joining apparatus applying the former method has comparatively simpler construction than the apparatus applying the latter method. However, in a following winding operation,
  • the spool since the spool includes a discontinuous portion of yarn made by the supplementary yarn wound thereon, the winding efficiency is remarkably lowered. Consequently, it is clear that the latter method and apparatus are better than the former ones.
  • the latter method and apparatus have not been practically utilized for mill operation, rather the former ones are applied for practical use. It was found that the main reason for the above-mentioned drawback of the latter method and apparatus is caused by the means for unwinding a free end of a broken yarn from a spool upon which the broken yarn is wound. That is, in the well-known yarn joining apparatus, a suction air stream is always applied as the means for unwinding a free end of broken yarn from the spool. In this unwinding means, a suction nozzle is horizontally mounted on the apparatus so that the nozzle faces the spindle supporting a spool upon which is wound the broken yarn.
  • the most important portion of the automatic yarn joining apparatus is the means for unwinding a free end of a yarn from a spool upon which it is wound.
  • certain mechanical procedures such as applying a suction force by air suction upon the surface of the spool so as to suck the free end of the yarn, are usually applied.
  • suction procedure if the suction force is insufficient to suck the free end of the yarn, the extraction of the yarn from the spool can not be attained.
  • the unwinding of the free end of the yarn from the spool can be satisfactorily carried out by applying the improved method and apparatus of the present invention.
  • the spindle is firstly turned so that a free end of the yarn is separated a little from the yarn surface of the spool, while a jet-air stream is jetted from an adjacent position facing the bottom of the spool to the top thereof in such a way that the jet air stream flows along the yarn surface thereof, so that the separated free end of the yarn is carried by the jet-air stream.
  • a suction-air stream is formed at a position above the top of the spool in the path of the jet-air stream so that the free end of the yarn carried with the jet air stream is sucked into the suction-air stream, thereby, the free end of the yarn is successfully unwound from the spool.
  • FIG. 1 is a general front view of an embodiment, partly in section of the present invention.
  • FIG. 2 is a view of the apparatus, taken along the line 11-, in FIG. 1,
  • FIG. 3A is a plan view of a pulling hook utilized for the apparatus shown in FIG. 1,
  • FIG. 3B is a sectional view of the pulling hook, taken along the line IlIB-IIIB in FIG. 3a,
  • FIG. 4 is a side view of a main portion of a unit for joining a broken end of the yarn with a fleece delivered from a drafting mechanism of a spinning machine, applied to the first embodiment shown in FIG. 1,
  • FIG. 5 is a partly sectioned plan view of the joining unit, shown in FIG. 4,
  • FIG. 6 is a partly sectioned plan view of a unit for cutting an excess yarn, attached to the joining unit shown in FIG. 4,
  • FIGS. -7, 8, 9 and 10 are explanatory drawings for illustrating the operation of the apparatus shown in FIG.
  • 15A, 15B, 16A and 16B are also explanatory drawings for further illustrating the operation of the apparatus shown in FIG. 1,
  • FIG. 17 ' is a side view of a unit for threading an extracted yarn into a traveller, according to the present invention.
  • FIG. 18 is a plan view of a unit for braking the rotation of a spindle, applied to the first embodiment
  • FIG. 19 is a schematic front view of a second embodiment according to the present invention.
  • FIG. 20B is a sectional view of the cutting unit, taken along a line XXB-XXB, in FIG. 20A.
  • the apparatus according to the present invention is preferably adapted for use with a ring spinning frame.
  • the first embodiment of the apparatus includes a carriage 1 which is reciprocally mounted along a path parallel to a row of spindles 2 of 25 a ring spinning frame.
  • Various component elements for carrying out the yarn joining operation are mounted in the carriage 1, that is, a unit for unwinding a free end of a broken yarn from a spool 3 upon which is wound the broken yarn, a unit for gripping the unwound yarn, a unit for positioning a traveller at a predetermined position on a ring 9, means for threading the unwound yarn into the traveller 10, a unit for joining the free end of the unwound yarn with a fleece 11 which is delivered from a draft mechanism of the ring spinning frame and delivered into a pneumatic cleaner 8, means for braking the rotation of the spindle 2, a sensing unit for detecting a broken yarn etc., so that, when the sensing unit detects an occurrence of yarn break, the carriage l is stopped at a position facing the spool 3 upon which is wound the broken yarn.
  • the free end of the extracted yarn is joined with the fleece ll delivered from the draft mechanism while the fleece 11 is sucked into a flute 8 of a pneumatic clearer mounted below
  • the unit for unwinding a free end of a broken yarn from a spool 3 upon which the broken yarn is wound comprises a lifting plate 13 having a portion thereof contacting a ring rail 4 so that the lifting plate 13 follows the lifting motion of the ring rail 4.
  • a sliding rod 14 is supported by the lifting plate 13 at its underside and is connected to a piston of a pneumatic cylinder (not shown).
  • a jet nozzle is secured to the sliding rod 14 in such a way that an opening 16 of the jet nozzle 15 is directed to a chase of the spool 3.
  • a flexible pipe 19 connects the jet nozzle 15 with a'supply source of compressed air (not shown).
  • a suction pipe 17 provided with a suction aperture 18, is disposed at a position adjacent to a flute 8 of pneumafil.
  • a flexible pipe connects the suction pipe 17 with a suction means (not shown).
  • a swing arm 21 is swingably supported by a pivot shaft.
  • An inclined cam 23 is contacted by a cam follower 24 mounted on the suction pipe 17.
  • a cam 25 for providing a swinging motion of the swing arm 21 contacts of a cam follower 26 mounted on the swing arm 21 in such a way that the swinging motion of the swing arm 21 is carried out against the tension of. springs 27, 28 so that the suction aperture 18 of the suction pipe 17 is moved forward along the inclined cam 23 so as to be located above the spindle 2.
  • a jet nozzle 29 is mounted on the lifting plate 13 so as to run the traveller 10 along the ring 9 by an air jet stream therefrom in spite of the traveller 10 being stopped from running at the time of a yarn break and being located at an indefinite position on the ring 9.
  • a stopper 30 is slidably mounted on the lifting plate 13 so as to stop the running of the traveller 10 by the air jet stream from the jet nozzle 29.
  • aguide rod 38 slidably passes through the lifting plate 13 so that the guide rod 38 is capable of lifting along the lifting plate 13.
  • a hook 39 and a pulling hook 40 provided with a guide 41 for leading an unwound yarn, which is unwound from the spool 3, toward the hook 39, are swingably mounted on atop end portion of the guide rod 38.
  • a guide lever 42 is pivoted on the lifting plate 13 by a pivot pin 43, so that the unwound yarn held by the hook 39 of the pulling hook 40, is led to the traveller 10 by the motion of the guide lever 42 in accordance with the downward motion of the guide rod 38.
  • a cam follower is positioned between the fourth cam 56 and the fourth lever.
  • the guide lever 42 is turned in accordance with the rotation of the second cam 47 and the pushing lever 44 is provided with a reciprocal sliding motion in accordance with the rotation of the third cam 51 and the pulling hook 40 is provided with a swing motion in accordance with the rotation of the fourth cam 56.
  • the guide rod 38 is connected to a piston of a pneumatic cylinder (not shown) so that the guide rod 38 is provided with an upward and downward motion in accordance with the reciprocal motion of a piston of a pneumatic cylinder (not shown).
  • the joining unit of the first embodiment comprises a swing lever 58 pivoted by a pivot shaft 59, and a supporting member 60 rotatably supporting a joining roller 61 and mounted on an end portion of the swing lever 58.
  • the connecting rod 62 is elastically connected by way of a spring 65 (FIG. 5).
  • a cam follower 66 is positioned between the fifth cam 64 and the actuating rod 63.
  • the swing lever 58 is provided with a swing motion so that the joining roller 61 is subjected to contact with a bottom front roller 6 of the drafting mechanism of the ring spinning frame (see dotted line position in FIG. 4).
  • a cutter 67 is mounted on a rear end portion of the supporting member 60. This cutter 67 comprises a stational knife 68 and a movable knife 69 secured to an end of a slide pin 70 slidably inserted in a hollow bearing 71 secured to the supporting member 60 by way of a spring 72.
  • a free end of the slide pin 70 is always pushed against an inclined plate 73 secured to the connecting rod 62 by a resilient force of the spring 72 so that the cutter 67 is opened.
  • the connecting rod 62 is pushed toward the bottom front roller 6 so that the swing lever 58 is turned clockwise and the joining roller 62 contacts the bottom front roller 6 as shown by broken lines.
  • the connecting rod 62 is further pushed to the roller 6 by further turning of the fifth cam 64 while compressing the spring 65, so that the slide pin 70 is pushed into the hollow bearing 71 by the movement of the inclined plate 73 and the opening of the cutter 67 is closed.
  • means for braking the rotation of a spindle 2 comprises a brake member 76 which is provided with a U-shaped recess formed at a free end thereof so that the recess is capable of engaging a bottomv portion 2a of the spindle 2.
  • the brake member 76 is slidably mounted in a frame of the carriage 1 so that the brake member 76 moves forward and rearward in accordance with a reciprocal motion of a piston of a cylinder (not shown).
  • the carriage l is stopped at a position facing a spool 3 upon which the broken yarn is wound, when the sensing unit (not shown) detects an occurrence of yarn break.
  • the swing arm 21 is actuated to swing by the turning motion of the cam 25 while springs 27 and 28 push the swing arm 21 toward the cam 25 by way of the cam follower 26.
  • the suction pipe 17 is displaced forward so that the suction aperture 18 of the suction pipe 17 is positioned above the spindle 2.
  • the inclined cam 23 works as a guide for the forward motion of the suction pipe 17 by way of the cam follower 24.
  • a suction air stream in the suction pipe 17 is formed by actuating a suction device (not shown) and the jet nozzle 15 is displaced forward by means of the forward sliding motion of the sliding rod 14 which is actuated by means of a pneumatic cylinder (not shown), (Referring to FIGS. 1, 7 and 8.)
  • the stopper 30 of the traveller positioning unit is moved forward by a motion of the first lever 34, the first inner wire 33 and the swing arm 31 in accordance with the turning motion of the first cam 35, thereby the free end of the stopper 30 contacts the ring 9.
  • a jetted air stream is ejected from the jet nozzle 29.
  • the traveller 10 which has already stopped at a time of yarn break, is simultaneously run on the 'ring by the jetted air stream from the jet nozzle 29 so that the traveller 10 is stopped at a position defined by the stopper 30.
  • the above-mentioned position is so defined that, in case the spindle 2 turns clockwise, the position is defined in a range y x in FIG. 2.
  • ejection of the air stream from the jet nozzle 29 is stopped. (Referring to FIGS. 1, 11A and 11B.)
  • a rod 78 is secured at its one end upon a rear end of the traveller hanger 45 and is provided with a curved portion 79 at a rear end thereof.
  • a slide guide 80 is mounted on the lifting plate 13. When the curved portion 79 engages with the slide guide 80 slidably supporting the pushing lever 44 in accordance with the further forward displacement of the pushing lever 44, the traveller hanger 45 turns upward, as shown by a broken line in FIG. 17, so that the unwound yarn 3b is engaged with the traveller 10. (Referring to FIGS. 1, 2 and 17.)
  • the joining roller 61 is displaced toward the bottom front roller 6 due to motions of the actuating rod 63, the connecting rod 62 and the swing lever 58 in accordance withthe rotation of the fifth cam 64 so that an upper portion of the unwound yarn 3b is pressed against the bottom front roller 6.
  • the unwound yarn 3b is led into a snail wire 12 of a spinning unit having the spool 3 upon which the broken yarn is wound.
  • the pulling hook 40 is caused to swing clockwise in opposition to a plate spring 77 (Referring to FIGS.
  • the unwound yarn .3b between the joining roller 61 and a nip point of the bottom front rollers 6 and a top front roller 7 of the draft means is twisted.
  • a free end of the unwound yarn 3b is twisted with the fleece 11, while being delivered into the pneumatic clearer 8 so that the yarn joining operation can be carried out.
  • the joining roller 61 is displaced toward the front bottom roller 6, the unwound yarn 3b passes in a V-shaped guide 61a disposed upon the joining roller 61 (FIG. 5), and the yarn 3b is also led to the cutter 67 mounted on the supporting member 60.
  • the cutter 67 is closed by the motion of the movable knife 69 actuated by theforward displacement of the connecting rod 62 is accordance with the turning motion of the fifth cam 64 so that the excess portion of the unwound yarn 3b is cut off.
  • the sucking operation of the suction pipe 17 is stopped.
  • the pulling hook 40 After releasing the base portion of the unwound yarn 3b from the hook 39 by the swinging motion of the pulling hook 40, the pulling hook 40 is retracted to its original position in accordance with the retracing of the sliding rod 52 by means of the forth cam 56 due to the resilient force of the plate spring 77.
  • the yarn joining operation according to the apparatus of the present invention is performed as mentioned above, and after the completion of the yarn joining operation, the carriage 1 is carried along a spindle rail 5 of the ring spinning frame in a condition shown in FIG. 1.
  • the detecting means detects a spool upon which the broken yarn is wound, the carriage l is stopped at a position facing the spool, and the abovementioned yarn joining operation is again commenced.
  • motions of the sliding rod 14, the guide rod 38 and the brake member 76 are actuated by the pneumatic cylinders, respectively, however, other mechanical means such as a combination of rack and pinion, or a link mechanism or a piston mechanism utilizing an'oil pressure can be successfully utilized for the same purpose.
  • other mechanical means such as a combination of rack and pinion, or a link mechanism or a piston mechanism utilizing an'oil pressure can be successfully utilized for the same purpose.
  • the pneumatic cylinder it was found that it is the best way to utilize the pneumatic cylinder, because, in the abovementioned embodiment, the air jet nozzles 15 and 29 are used, therefore, the pneumatic cylinder can be operated by utilizing a single air-supply source.
  • a free end of the broken yarn is unwound from a spool, upon which the broken yarn is wound, and is firstly separated from the spool by the jet air stream jetted from the jet nozzle and the centrifugal force caused by the high speed rotation of a spindle supporting the spool.
  • the separated yarn is led to an air stream formed between the above-mentioned nozzle and the suction nozzle disposed above the spindle so that the unwound yarn from the spool is held in the above-mentioned air stream and is directed upward. Therefore, thethreading of the unwound yarn into a traveller can be carried out satisfactorily and easily. Further, since the joining operation and the cutting operation of the excess portion of the unwound yarn are carried outin combination, these operations can be successfully and easily carried out.
  • a second embodiment of the yarn joining apparatus of the present invention is characterized by means for sucking the unwound yarn from a spool upon which the broken yarn is wound. That is, inthe second embodiment, the sucking means is provided with means so that an excess portion of the unwound yarn sucked into the suction means can be cut off. Therefore,- troubles at the time of the joining operation of the extracted yarn with a fleece delivered from a draft mechanism can be prevented.
  • the same reference numerals are used for the equivalent elements of the apparatus as that of the elements of the first embodiment.
  • the suction means comprises the suction pipe 17 provided with the suction aperture 18 and a suction tank 81 and a connecting conduit 82 provided with an extensible pipe portion 83 formed at a middle portion, thereof.
  • a cutting means 84 is mounted at a position between the extensible pipe portion 83 and the suction tank 81.
  • the cutting means 84 comprises a stationary knife 85 secured to the connecting conduit 82 and a knife 86 turnably supported by a fulcrum pin 87 mounted on a flange of the conduit 82
  • the movable knife 86 is turned by a suitable signal as hereinafter described in the drawing.
  • the yarn 3b, unwound from the spool 3, is sucked into the suction pipe 17 through the suction aperture 18 which was previously displaced above the spool 3 so that the unwound yarn 3b is led to the suction tank 81.
  • the movable knife 86 is turned by means of an electrical magnet (not shown) which is actuated by an electrical signal developed by a signal generator (not shown) related to the threading means, so that the excess portion of the unwound yarn 3b is cut off by the cutting means 84.
  • the turned position of the movable knife 86 is represented by a broken line in FIG. 20A.
  • the length of the unwound yarn 3b is defined by the length of the extensible pipe portion 83 which can be adjusted so as to obtain the preferable length for joining the unwound yarn 312 connected to the spool 3 with the fleece 11.
  • the joining roller 61 is displaced to the front bottom roller 6 so that the joining roller 61 contacts the roller 6. Therefore, the yarn joining operation is carried out in the same manner as the first embodiment.
  • the unwound yarn 3b is held with a suitable tension, which is generated by the suction force of the suction pipe 17 and the connecting conduit 82, pulling out of the unwound yarn 3b from the suction tube 17 is pre- 1.
  • said unwinding means comprising an air jet nozzle directed toward the chase of said spool and mounted on a lifting plate capable of following the up and down motion of the ring rail of said spinning machine;
  • said joining means having a suction nozzle for receiving the free end of said broken yarn carried by an upward air stream from said air jet nozzle and movable contact means for contacting the upper portion of said broken yarn as it extends between said suction nozzle and said spool with said fleece delivered from said draft unit;
  • cutter means mounted on said contact means for severing said yarn from said suction nozzle simultaneously with the completion of a forward motion of said contact means for contacting said upper end portion of unwound yarn received by said suction nozzle with said fleece.
  • said threading means comprises a first element for hooking said yarn unwound fromsaid spool at the portion located between said suction nozzle and said spool, a second element for leading said portion of yarn to a position adjacent to an upper flange surface of said ring, and a third element for inserting said portion of yarn into the space between said traveller and said ring.
  • An apparatus further including a brake member displaceably mounted on said apparatus for braking the rotation of a spindle related to said spool;
  • said positioning means comprising a stop slidably mounted on said lifting plate and a further air jet nozzle for moving said traveller into engagement with said stop, said air jet nozzle being mounted on said lifting plate and directed tangentially toward the outer cylindrical flanged surface of said ring.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00014038A 1969-02-28 1970-02-25 Method and apparatus for joining yarns Expired - Lifetime US3807155A (en)

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JP1576669 1969-02-28

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CH (1) CH525976A (no)
DE (1) DE2009095C3 (no)
FR (1) FR2033158A5 (no)
GB (1) GB1304448A (no)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868813A (en) * 1973-02-01 1975-03-04 Heberlein Hispano Sa Device for winding-off yarn ends
US3905187A (en) * 1974-01-23 1975-09-16 Saco Lowell Corp Auxiliary yarn piecing equipment
US3905186A (en) * 1973-10-23 1975-09-16 Saco Lowell Corp Method and means for control of end-down servicing
US3992864A (en) * 1973-10-12 1976-11-23 Zinser Textilmaschinen Gmbh Method of and apparatus for automatic reattachment of threads in spinning machines
US4026095A (en) * 1974-10-16 1977-05-31 Asahi Kasei Kogyo Kabushiki Kaisha Variable passage type yarn guide arrangement
US4155215A (en) * 1977-03-28 1979-05-22 Zinser Textilmaschinen Gmbh Automatic threading device for filament winding machines
US4729216A (en) * 1986-01-15 1988-03-08 Zinser Textilmaschinen Gmbh Service device and method for applying an air blast to a broken yarn end in a ring spinning machine
CN110468477A (zh) * 2018-05-10 2019-11-19 拉卡什米机械厂有限公司 用于环锭纺纱机的纱线插入装置
EP3643819A1 (en) * 2018-09-11 2020-04-29 Lakshmi Machine Works Ltd. Yarn picking arrangement for a ring spinning machine and a method thereof
CN112111825A (zh) * 2019-06-19 2020-12-22 铜陵松宝智能装备股份有限公司 一种细纱机自动接头机用的操作台
CN113604919A (zh) * 2021-04-14 2021-11-05 东华大学 一种用于环锭纺细纱自动接头的备用纱绕纱装置
EP3967798A1 (en) 2020-09-10 2022-03-16 Lakshmi Machine Works Ltd. Yarn threading arrangement in a piecing unit of ring spinning machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015839A1 (de) * 1980-04-24 1981-10-29 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Ansetzvorrichtung zum beheben von fadenbruechen an einer ringspinnmaschine
DE3726720A1 (de) * 1987-08-11 1989-02-23 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum selbsttaetigen fadenansetzen an einer ringspinnmaschine
DE4119382A1 (de) * 1991-06-12 1992-12-17 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum suchen eines fadenendes oder aufwerfen eines hilfsfadens an einem kops bzw. an einen kops oder eine leere huelse

Citations (8)

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Publication number Priority date Publication date Assignee Title
US3128590A (en) * 1961-06-14 1964-04-14 Roberto Escursell Prat Automatic thread joiner for continuous spinning machines
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3374616A (en) * 1965-09-30 1968-03-26 Celanese Corp Doffing machine
US3445997A (en) * 1961-06-14 1969-05-27 Roberto Escursell Prat Automatic thread joiner and continuous spinning machines
US3511041A (en) * 1967-12-21 1970-05-12 Petr Konstantinovich Korikovsk Spinning and twisting device
US3540200A (en) * 1967-08-19 1970-11-17 Toyo Boseki Automatic yarn piecing apparatus for ring spinning frame or the like
US3546870A (en) * 1967-02-13 1970-12-15 Barber Colman Co Method and machine for automatically relocating spinning frame travelers
US3591951A (en) * 1968-09-03 1971-07-13 Kanegafuchi Spinning Co Ltd Yarn piecing apparatus for spinning frame

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128590A (en) * 1961-06-14 1964-04-14 Roberto Escursell Prat Automatic thread joiner for continuous spinning machines
US3445997A (en) * 1961-06-14 1969-05-27 Roberto Escursell Prat Automatic thread joiner and continuous spinning machines
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3374616A (en) * 1965-09-30 1968-03-26 Celanese Corp Doffing machine
US3546870A (en) * 1967-02-13 1970-12-15 Barber Colman Co Method and machine for automatically relocating spinning frame travelers
US3540200A (en) * 1967-08-19 1970-11-17 Toyo Boseki Automatic yarn piecing apparatus for ring spinning frame or the like
US3511041A (en) * 1967-12-21 1970-05-12 Petr Konstantinovich Korikovsk Spinning and twisting device
US3591951A (en) * 1968-09-03 1971-07-13 Kanegafuchi Spinning Co Ltd Yarn piecing apparatus for spinning frame

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3868813A (en) * 1973-02-01 1975-03-04 Heberlein Hispano Sa Device for winding-off yarn ends
US3992864A (en) * 1973-10-12 1976-11-23 Zinser Textilmaschinen Gmbh Method of and apparatus for automatic reattachment of threads in spinning machines
US3905186A (en) * 1973-10-23 1975-09-16 Saco Lowell Corp Method and means for control of end-down servicing
US3905187A (en) * 1974-01-23 1975-09-16 Saco Lowell Corp Auxiliary yarn piecing equipment
US4026095A (en) * 1974-10-16 1977-05-31 Asahi Kasei Kogyo Kabushiki Kaisha Variable passage type yarn guide arrangement
US4155215A (en) * 1977-03-28 1979-05-22 Zinser Textilmaschinen Gmbh Automatic threading device for filament winding machines
US4729216A (en) * 1986-01-15 1988-03-08 Zinser Textilmaschinen Gmbh Service device and method for applying an air blast to a broken yarn end in a ring spinning machine
CN110468477A (zh) * 2018-05-10 2019-11-19 拉卡什米机械厂有限公司 用于环锭纺纱机的纱线插入装置
CN110468477B (zh) * 2018-05-10 2022-05-31 拉卡什米机械厂有限公司 用于环锭纺纱机的纱线插入装置
EP3643819A1 (en) * 2018-09-11 2020-04-29 Lakshmi Machine Works Ltd. Yarn picking arrangement for a ring spinning machine and a method thereof
CN112111825A (zh) * 2019-06-19 2020-12-22 铜陵松宝智能装备股份有限公司 一种细纱机自动接头机用的操作台
EP3967798A1 (en) 2020-09-10 2022-03-16 Lakshmi Machine Works Ltd. Yarn threading arrangement in a piecing unit of ring spinning machine
CN113604919A (zh) * 2021-04-14 2021-11-05 东华大学 一种用于环锭纺细纱自动接头的备用纱绕纱装置
CN113604919B (zh) * 2021-04-14 2022-12-06 东华大学 一种用于环锭纺细纱自动接头的备用纱绕纱装置

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Publication number Publication date
DE2009095A1 (no) 1970-09-03
FR2033158A5 (no) 1970-11-27
DE2009095B2 (de) 1973-06-28
GB1304448A (no) 1973-01-24
CH525976A (fr) 1972-07-31
DE2009095C3 (de) 1974-02-21

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