EP2949793B1 - Spinning machine and spinning method - Google Patents

Spinning machine and spinning method Download PDF

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Publication number
EP2949793B1
EP2949793B1 EP15165786.3A EP15165786A EP2949793B1 EP 2949793 B1 EP2949793 B1 EP 2949793B1 EP 15165786 A EP15165786 A EP 15165786A EP 2949793 B1 EP2949793 B1 EP 2949793B1
Authority
EP
European Patent Office
Prior art keywords
spinning
timing
yarn
fiber bundle
pneumatic
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.)
Active
Application number
EP15165786.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2949793A3 (en
EP2949793A2 (en
Inventor
Masahiro Akimoto
Masaki Oka
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
Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP2949793A2 publication Critical patent/EP2949793A2/en
Publication of EP2949793A3 publication Critical patent/EP2949793A3/en
Application granted granted Critical
Publication of EP2949793B1 publication Critical patent/EP2949793B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H1/00Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11Spinning by false-twisting
    • D01H1/115Spinning by false-twisting using pneumatic means

Definitions

  • US 5 419 110 A discloses a spinning machine in which, upon a yarn breakage, a back roller is stopped, thereupon a spinning nozzle is turned off, and thereupon separation of a spindle portion takes place.
  • a spinning method of the present invention is executed in a spinning machine including a draft device adapted to draft a fiber bundle, and a pneumatic spinning device arranged movable to a spinning position and a receded position, which is located further away from the draft device than the spinning position, and adapted to produce a yarn by applying twists to the drafted fiber bundle by injecting air to a spinning chamber while being located at the spinning position.
  • the spinning method includes adjusting at least one of a first timing, which is a timing at which injection of the air is stopped when a drafting operation of the draft device is stopped, and a second timing, which is a timing at which the pneumatic spinning device starts being moved from the spinning position to the receded position when the drafting operation of the draft device is stopped.
  • each spinning unit 2 includes a draft device 6, an injecting device 14, a suction device 15, a pneumatic spinning device 7, a yarn monitoring device 8, a tension sensor 9, a yarn accumulating device 50, a waxing device 11, and a winding device 12 in this order from upstream.
  • the devices are directly or indirectly supported by a machine frame 13 such that upstream becomes an upper side in a machine height direction, (in other words, such that downstream becomes a lower side in the machine height direction).
  • the pneumatic spinning device 7 is movably (swingably) supported by a support shaft (not illustrated). As illustrated in FIGS. 4 and 5 , the pneumatic spinning device 7 can be moved to a receded position, which is located further away from the draft device 6 than the spinning position. When the pneumatic spinning device 7 is located at the receded position, the hollow guide shaft body 80 can be further moved from the nozzle block 70. When the pneumatic spinning device 7 is moved from the spinning position to the receded position, as illustrated in FIG. 4 , the nozzle block 70 and the hollow guide shaft body 80 are integrally moved away from the draft device 6. Then, as illustrated in FIG. 5 , only the nozzle block 70 stops at a predetermined position. The hollow guide shaft body 80 continues the movement in order to be located away from the nozzle block 70. Subsequently, the hollow guide shaft body 80 that has been moved away from the nozzle block 70 stops at a predetermined position.
  • the injecting device 14 is adapted to inject air towards a region C between the draft device 6 and the pneumatic spinning device 7 after the pneumatic spinning device 7 starts being moved from the spinning position to the receded position.
  • the injecting device 14 is arranged to inject the air such that the air crosses a fiber passage (a path where the fiber bundle F travels) in the region C.
  • the injecting device 14 is preferably arranged to inject the air along a direction vertical to the fiber passage.
  • the injecting device 14 is controlled by the unit controller 10 to inject the air at a desired timing.
  • the suction device 15 is arranged to face the injecting device 14 with the region C therebetween, and is adapted to suck a fiber that remains in and around the region C.
  • the unit controller 10 further has a function as an adjusting section of the first timing L.
  • the unit controller 10 can adjust the first timing L by storing data selected by an operator via an input section (not illustrated) in the storage section and performing a control program in accordance with the selected data.
  • the first timing L is adjusted to be relatively early (for example, to be earlier than the first timing L illustrated in FIG. 6B ). Accordingly, since twists are not sufficiently applied to the yarn end of the yarn Y, the length of the fiber bundle portion Y1 becomes long.
  • the length of the fiber bundle portion Y1 is lengthened, for example, in a case of reliably catching the yarn end of the yarn Y when performing the yarn joining operation.
  • twists are not appropriately applied to the yarn end of the yarn Y in the pneumatic spinning device 7, and the fiber bundle portion Y1 is formed at the yarn end of the yarn Y.
  • the first timing L to stop the injection of the air in the pneumatic spinning device 7 when the drafting operation of the draft device 6 is stopped is adjusted, the length of the fiber bundle portion Y1 to be formed at the yarn end of the yarn Y can be adjusted.
  • twists are not appropriately applied to the yarn end of the yarn Y" means that twists different from twists at the time of spinning are applied to the yarn end of the yarn Y or twists are not applied to the yarn end of the yarn Y.
  • the unit controller 10 controls the operations relating to the adjustments of the first timing L, the second timing M, and the third timing N.
  • an adjustment mechanism to adjust at least one of the first timing L, the second timing M, and the third timing N may be arranged separately from the unit controller 10, and an operator may directly adjust at least one of the first timing L, the second timing M, and the third timing N by such an adjustment mechanism without the unit controller 10.
  • the length of the air path may be adjusted by the operator.
  • the first timing L can be adjusted.
  • the positional relation may be adjusted by the operator. Since a timing at which the actuator starts acting on the pneumatic spinning device 7 is varied by adjusting the positional relation, the second timing M can be adjusted. In such a manner, at least one of the first timing L, the second timing M, and the third timing N may be directly adjusted without the unit controller 10.
  • the injecting device 14 is located on the side of the top roller 65b with respect to the region C, and the suction device 15 is located on the side of the bottom roller 65a with respect to the region C, but positions of the injecting device 14 and the suction device 15 may be reversed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP15165786.3A 2014-05-26 2015-04-29 Spinning machine and spinning method Active EP2949793B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014108287A JP2015224397A (ja) 2014-05-26 2014-05-26 紡績機及び紡績方法

Publications (3)

Publication Number Publication Date
EP2949793A2 EP2949793A2 (en) 2015-12-02
EP2949793A3 EP2949793A3 (en) 2016-05-11
EP2949793B1 true EP2949793B1 (en) 2019-09-11

Family

ID=53016537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15165786.3A Active EP2949793B1 (en) 2014-05-26 2015-04-29 Spinning machine and spinning method

Country Status (3)

Country Link
EP (1) EP2949793B1 (zh)
JP (1) JP2015224397A (zh)
CN (1) CN105274666B (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018090923A (ja) * 2016-12-01 2018-06-14 村田機械株式会社 紡績機及び紡績方法
EP3505661A1 (en) * 2017-12-28 2019-07-03 Murata Machinery, Ltd. Spinning machine and spinning method
CN109626132A (zh) * 2018-12-18 2019-04-16 青岛宏大纺织机械有限责任公司 一种纱线吹管方法及装置
EP3835467A1 (de) * 2019-12-09 2021-06-16 Saurer Intelligent Technology AG Verfahren zur reinigung einer luftspinnvorrichtung einer spinnstelle, eine solche luftspinnvorrichtung und eine fadenbildungseinheit für eine solche luftspinnvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07122167B2 (ja) * 1992-03-16 1995-12-25 村田機械株式会社 紡績装置の糸継ぎ方法
JP2973961B2 (ja) * 1997-01-13 1999-11-08 村田機械株式会社 紡績機のピーシング方法及びその装置
JP2001131834A (ja) * 1999-08-24 2001-05-15 Murata Mach Ltd 紡績装置
JP2002155435A (ja) * 2000-11-15 2002-05-31 Murata Mach Ltd 紡績機におけるピーシング方法及びその装置
JP2006144136A (ja) 2004-11-16 2006-06-08 Murata Mach Ltd 紡績装置の運転方法及び紡績装置
JP2011038210A (ja) * 2009-08-11 2011-02-24 Murata Machinery Ltd 空気紡績装置及びこの空気紡績装置を備える紡績機
JP2011038225A (ja) * 2009-08-17 2011-02-24 Murata Machinery Ltd 紡績機
JP2013067885A (ja) * 2011-09-21 2013-04-18 Murata Mach Ltd 空気紡績装置、紡績ユニット、紡績機及び空気紡績方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN105274666A (zh) 2016-01-27
EP2949793A3 (en) 2016-05-11
EP2949793A2 (en) 2015-12-02
JP2015224397A (ja) 2015-12-14
CN105274666B (zh) 2019-09-27

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