EP2677070A1 - Corps d'arbre de guidage creux, fileuse à air et machine de renvideur de fil comprenant celle-ci - Google Patents

Corps d'arbre de guidage creux, fileuse à air et machine de renvideur de fil comprenant celle-ci Download PDF

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Publication number
EP2677070A1
EP2677070A1 EP13170142.7A EP13170142A EP2677070A1 EP 2677070 A1 EP2677070 A1 EP 2677070A1 EP 13170142 A EP13170142 A EP 13170142A EP 2677070 A1 EP2677070 A1 EP 2677070A1
Authority
EP
European Patent Office
Prior art keywords
guide shaft
shaft body
hollow guide
base member
air
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.)
Granted
Application number
EP13170142.7A
Other languages
German (de)
English (en)
Other versions
EP2677070B1 (fr
Inventor
Hideshige Mori
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 EP2677070A1 publication Critical patent/EP2677070A1/fr
Application granted granted Critical
Publication of EP2677070B1 publication Critical patent/EP2677070B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01H1/115—Spinning by false-twisting using pneumatic means

Definitions

  • the present invention mainly relates to a configuration of a hollow guide shaft body provided in an air-jet spinning device.
  • an air-jet spinning device adapted to add twists to a fiber bundle and to generate a spun yarn by applying a whirling airflow to the fiber bundle.
  • the air-jet spinning device includes a spindle (or a hollow guide shaft body).
  • the spindle has a cylindrical or conical shape around which a predetermined space (a whirling chamber) is formed.
  • a whirling chamber a predetermined space
  • fibers are swung around the spindle in the whirling chamber by an action of the whirling airflow. Accordingly, the twists are added to the fibers, and the spun yarn is generated.
  • the spindle provided in the conventional air-jet spinning device is made of ceramics (sintering structure), toughness of the spindle is low and the spindle is fragile.
  • the conventional spindle made of the ceramics is made thinner, breakage such as a cracking and/or a chipping may frequently occur. When the spindle is damaged, replacement is required and results in cost increase. Since making the conventional spindle even thinner is difficult, demand for the higher spinning speed has not been met sufficiently.
  • the ceramics Since fraction is generated between the fibers and the spindle, static electricity occurs. However, since the ceramics is typically insulator, the ceramics is likely to be electrically charged being unable to release electrical charge. Wastes such as fiber wastes are likely to attach to the surface of the charged spindle, which may cause an adverse effect on quality of the spun yarn to be generated. Thus, the spindle is required to be frequently cleaned in the conventional air-jet spinning device, and the cleaning task causes production efficiency to decrease.
  • An object of the present invention is to provide a spindle that is less likely to be cracked, and to which the wastes such as the fiber wastes are less likely to attach.
  • the following configuration of a hollow guide shaft body is provided, around which fibers whirl by an action of a whirling airflow in an air-jet spinning device and in which a fiber passage is formed where the fibers pass after being twisted by the whirling airflow.
  • the hollow guide shaft body includes a base member having electrical conductivity, an upper layer provided at least on a portion of a surface of the base member and being harder than the base member.
  • the hollow guide shaft body (spindle) is less likely to be electrically charged. Since wastes are less likely to attach to the hollow guide shaft body, quality of the spun yarn to be generated by the air-jet spinning device is enhanced, and time and labor to clean the hollow guide shaft body can be reduced. Abrasion resistance of the hollow guide shaft body can be improved by the upper layer provided on the surface of the base member. Since the abrasion resistance is not required for the base member itself, a material having relatively high toughness can be employed for the base member. Accordingly, since breakage such as a cracking and/or a chipping of the hollow guide shaft body becomes less likely to occur, flexibility of a shape of the hollow guide shaft body is increased. Since the hollow guide shaft body can be formed thinner (a diameter can be formed shorter) than before, for example, spinning speed of the air-jet spinning device can be enhanced by improving whirling speed of the fibers.
  • the upper layer is preferably a diamond-like carbon coating.
  • the upper layer having sufficient hardness can be formed. Since the diamond-like carbon coating has a low friction coefficient, friction that occurs between the hollow guide shaft body and the fibers can be reduced. Since the whirling speed of the fibers thus can be more improved, the spinning speed of the air-jet spinning device can be more enhanced.
  • the upper layer preferably has electrical conductivity.
  • the hollow guide shaft body becomes even less likely to be electrically charged, and the wastes become even less likely to attach to the hollow guide shaft body.
  • the upper layer is provided on an inlet portion of the fiber passage and at least on a portion of an inner surface of the fiber passage.
  • the fibers whirled in the air-jet spinning device make contact with the above-described positions of the hollow guide shaft body, by providing the upper layer on such positions, the abrasion resistance of the hollow guide shaft body can be improved.
  • the base member is preferably formed from at least one of iron, conductive ceramics, refractory metal and stainless steel.
  • the base member of the hollow guide shaft body By forming the base member of the hollow guide shaft body from a material having electrical conductivity, static electricity occurred by the friction between the hollow guide shaft body and the fibers can be reliably released.
  • an intermediate layer adapted to adhere the upper layer and the base member is preferably provided between the upper layer and the base member.
  • the upper layer is preferably black.
  • the wastes such as fiber wastes attached to the surface can be easily recognized visually. Accordingly, the hollow guide shaft body can be easily cleaned at the time of maintenance or the like.
  • an air-jet spinning device includes the hollow guide shaft body, a whirling chamber forming member in which a whirling chamber is formed in which the fibers are whirled, and a fiber guiding section adapted to guide the fibers to the whirling chamber.
  • the air-jet spinning device can improve the spinning speed than before by employing the above-described hollow guide shaft body.
  • the yarn winding machine can improve a speed of generating the package than before by employing the above-described air-jet spinning device.
  • the heat treatment layer 53 is a portion in which the hardness of the surface of the base member 50 is improved by adding heat treatment such as quenching and tempering to the base member 50 made of stainless steel.
  • the fiber passage 39 is formed in the hollow guide shaft body 32.
  • the fibers to which the twists have been added by the whirling airflow pass through the fiber passage 39.
  • the hollow guide shaft body 32 includes the base member 50 having electrical conductivity, and the upper layer 51 provided on the surface of the base member 50 and being harder than the base member 50.
  • the fibers whirled in the air-jet spinning device 5 make contact with the above-described positions of the hollow guide shaft body 32, by providing the upper layer 51 on such positions, the abrasion resistance of the hollow guide shaft body 32 can be improved.
  • the base member 50 is formed of the stainless steel.
  • the air-jet spinning device 5 of the present embodiment includes the hollow guide shaft body 32, the nozzle block 31 in which the whirling chamber 41 is formed in which the fibers are whirled, and the needle 44 adapted to guide the fibers to the whirling chamber 41.
  • the spinning machine 1 of the present embodiment includes the above-described air-jet spinning device 5 and the winding section 8 adapted to wind the spun yarn 15 spun by the air-jet spinning device 5 and to form the package 18.
  • the spinning machine 1 can improve the speed of generating the package 18 than before by employing the above-described air-jet spinning device 5.
  • the intermediate layer 52 is adapted to improve the adhesion between the base member 50 and the upper layer 51, the intermediate layer 52 may be omitted when the adhesion between the base member 50 and the upper surface 51 is sufficient.
  • the nitriding treatment layer 54 can be recognized as an "upper layer". Since the nitriding treatment layer 54 is inferior to the DLC coating in terms of hardness, the abrasion resistance may be not sufficient. Therefore, when the upper layer is the nitriding treatment layer 54, the hollow guide shaft body 32 may be abraded by the friction with the fibers. However, when the upper layer is the nitriding treatment layer 54, since the expensive DLC coating is omitted, the hollow guide shaft body 32 can be advantageously configured in a low-cost manner. Therefore, even if the abraded hollow guide shaft body 32 is replaced with a new hollow guide shaft body 32, a burden in terms of cost is light.
  • the needle 44 may be omitted.
  • the fiber bundle 10 is introduced into the whirling chamber 41 while being guided by the inner wall surface of the fiber introducing hole 34 formed in the fiber guiding block 30.
  • the fiber guiding block 30 itself can be recognized as a "fiber guiding section".

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP13170142.7A 2012-06-22 2013-05-31 Corps d'arbre de guidage creux, fileuse à air et machine de renvideur de fil comprenant celle-ci Active EP2677070B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012141181A JP6031847B2 (ja) 2012-06-22 2012-06-22 中空ガイド軸体、空気紡績装置、及びこれを備える糸巻取機

Publications (2)

Publication Number Publication Date
EP2677070A1 true EP2677070A1 (fr) 2013-12-25
EP2677070B1 EP2677070B1 (fr) 2016-09-14

Family

ID=48578811

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13170142.7A Active EP2677070B1 (fr) 2012-06-22 2013-05-31 Corps d'arbre de guidage creux, fileuse à air et machine de renvideur de fil comprenant celle-ci

Country Status (3)

Country Link
EP (1) EP2677070B1 (fr)
JP (1) JP6031847B2 (fr)
CN (1) CN103510195B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20163006A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
ITUA20163011A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
EP3266910B1 (fr) 2016-07-07 2021-03-24 Savio Macchine Tessili S.p.A. Métier à filer à jet d'air
EP4012083A1 (fr) * 2020-12-09 2022-06-15 Saurer Intelligent Technology AG Élément à filer d'une filière à jet d'air pour un métier à filer à jet d'air

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104344719B (zh) * 2014-10-17 2016-04-06 东华大学 一种连续式陶瓷纤维的烧结设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703078A1 (de) * 1986-02-08 1987-08-20 Barmag Barmer Maschf Fadenfuehrer mit verschleissarmer oberflaechenbeschichtung
EP0418693A1 (fr) * 1989-09-21 1991-03-27 Maschinenfabrik Rieter Ag Tuyère d'un métier à filer à jet d'air
JPH10317231A (ja) 1997-05-13 1998-12-02 Murata Mach Ltd 空気精紡機のスピンドル部材
US6338881B1 (en) * 1996-09-03 2002-01-15 Saxonia Umformtechnik Gmbh Diamond-like coating and method of making same
US20030101710A1 (en) * 2001-08-29 2003-06-05 Maschinenefabrik Rieter Ag Measure for influencing the axial flow in the spindle channel of an air-vortex spinning apparatus
US20070227116A1 (en) * 2006-04-13 2007-10-04 Maschinenfabrik Rieter Ag Spindle-shaped component for an air-jet spinning arrangement with an injection channel
EP2573218A2 (fr) * 2011-09-21 2013-03-27 Maschinenfabrik Rieter AG Pointe de filature pour arbre creux d'un métier à tisser
EP2573219A2 (fr) * 2011-09-21 2013-03-27 Maschinenfabrik Rieter Ag Élément de formation de fil pour un poste de filage d'un métier à tisser à jet d'air et procédé de préparation d'un procédé de filage sur un métier à tisser à jet d'air

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH026637A (ja) * 1988-06-27 1990-01-10 Asahi Chem Ind Co Ltd オープンエンド紡績の装置
JPH0327131A (ja) * 1989-06-20 1991-02-05 Asahi Chem Ind Co Ltd オープンエンド紡績装置
JPH0525718A (ja) * 1991-05-23 1993-02-02 Sumitomo Metal Ind Ltd 紡績機用ロータリーリングおよびその製造方法
CN200981905Y (zh) * 2006-11-14 2007-11-28 上海兰度科技有限公司 一种新型电纺丝纳米纤维束气流加捻收集装置
DE102011002972A1 (de) * 2010-06-25 2011-12-29 Rieter Ingolstadt Gmbh Fadenabzugsdüse

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703078A1 (de) * 1986-02-08 1987-08-20 Barmag Barmer Maschf Fadenfuehrer mit verschleissarmer oberflaechenbeschichtung
EP0418693A1 (fr) * 1989-09-21 1991-03-27 Maschinenfabrik Rieter Ag Tuyère d'un métier à filer à jet d'air
US6338881B1 (en) * 1996-09-03 2002-01-15 Saxonia Umformtechnik Gmbh Diamond-like coating and method of making same
JPH10317231A (ja) 1997-05-13 1998-12-02 Murata Mach Ltd 空気精紡機のスピンドル部材
US20030101710A1 (en) * 2001-08-29 2003-06-05 Maschinenefabrik Rieter Ag Measure for influencing the axial flow in the spindle channel of an air-vortex spinning apparatus
US20070227116A1 (en) * 2006-04-13 2007-10-04 Maschinenfabrik Rieter Ag Spindle-shaped component for an air-jet spinning arrangement with an injection channel
EP2573218A2 (fr) * 2011-09-21 2013-03-27 Maschinenfabrik Rieter AG Pointe de filature pour arbre creux d'un métier à tisser
EP2573219A2 (fr) * 2011-09-21 2013-03-27 Maschinenfabrik Rieter Ag Élément de formation de fil pour un poste de filage d'un métier à tisser à jet d'air et procédé de préparation d'un procédé de filage sur un métier à tisser à jet d'air

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20163006A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
ITUA20163011A1 (it) * 2016-04-29 2017-10-29 Savio Macch Tessili Spa Dispositivo di filatura di tipo air-jet
US20170314166A1 (en) * 2016-04-29 2017-11-02 Savio Macchine Tessili S.P.A. Air-jet type spinning device
US10597799B2 (en) 2016-04-29 2020-03-24 Savio Macchine Tessili S.P.A. Air-jet type spinning device
US10851478B2 (en) 2016-04-29 2020-12-01 Savio Macchine Tessili S.P.A. Air-jet type spinning device
EP3266910B1 (fr) 2016-07-07 2021-03-24 Savio Macchine Tessili S.p.A. Métier à filer à jet d'air
EP4012083A1 (fr) * 2020-12-09 2022-06-15 Saurer Intelligent Technology AG Élément à filer d'une filière à jet d'air pour un métier à filer à jet d'air
WO2022122376A1 (fr) * 2020-12-09 2022-06-16 Saurer Intelligent Technology AG Élément filière d'une filière à jet d'air pour métier à filer à jet d'air

Also Published As

Publication number Publication date
JP6031847B2 (ja) 2016-11-24
CN103510195B (zh) 2018-07-27
CN103510195A (zh) 2014-01-15
JP2014005562A (ja) 2014-01-16
EP2677070B1 (fr) 2016-09-14

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