EP2366817A1 - Machine de filature - Google Patents

Machine de filature Download PDF

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Publication number
EP2366817A1
EP2366817A1 EP09828783A EP09828783A EP2366817A1 EP 2366817 A1 EP2366817 A1 EP 2366817A1 EP 09828783 A EP09828783 A EP 09828783A EP 09828783 A EP09828783 A EP 09828783A EP 2366817 A1 EP2366817 A1 EP 2366817A1
Authority
EP
European Patent Office
Prior art keywords
yam
path
unit
yarn
spinning machine
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
EP09828783A
Other languages
German (de)
English (en)
Other versions
EP2366817A4 (fr
EP2366817B2 (fr
EP2366817B1 (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
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Application filed by Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP2366817A1 publication Critical patent/EP2366817A1/fr
Publication of EP2366817A4 publication Critical patent/EP2366817A4/fr
Application granted granted Critical
Publication of EP2366817B1 publication Critical patent/EP2366817B1/fr
Publication of EP2366817B2 publication Critical patent/EP2366817B2/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/02—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a spinning machine including a draft process unit, a pneumatic spinning unit, a winding unit, and the like.
  • This type of spinning machine is known as disclosed in the Patent Document 1, for example.
  • a draft process unit, a pneumatic spinning unit, a delivery roller, a winding unit and the like are arranged linearly along a yarn path, which extends from bottom to top, above cans that house sliver (fiber bundle).
  • the easiest way is to reduce the size of the can in the up and down direction.
  • the capacity of the can is reduced so that the sliver inside runs out faster.
  • the cans need to be exchanged more frequently, and the efficiency of manufacturing a package is reduced. Therefore, it is not preferable to downsize the can for avoiding an increase in the size of the spinning machine in the up and down direction of the spinning machine.
  • An object of the present invention is to improve production of a package by realizing easy handling and maintenance of the units in the spinning machine.
  • a spinning machine includes a draft process unit, a pneumatic spinning unit, a yarn-accumulating device, and a winding unit.
  • the draft process unit draws a sliver.
  • the pneumatic spinning unit twists the sliver drawn by the draft process unit and delivers a spun yam.
  • a yarn-accumulating device temporarily accumulates the spun yam delivered from the pneumatic spinning unit.
  • the winding unit winds the spun yam so as to form a package.
  • a yarn path in a unit configuration section where the draft process unit, the pneumatic spinning unit, the yarn-accumulating unit, and the winding unit are disposed includes a first yarn path which is horizontal or inclined gently, and a second yam path which continues from the first yam path and is guided by the yarn-accumulating device to a different direction from that of the first yam path.
  • the draft process unit and the pneumatic spinning unit are disposed in the first yarn path, and the winding unit is disposed at a downstream end of the second yam path.
  • "inclined gently” means to be inclined upward or downward at an angle of 45 degrees or less.
  • the shape of the yam path may look like a " ⁇ " or "L", or may look like a mirrored image thereof.
  • an up and down distance between the lower end of the first yam path and the upper end of the second yam path can be reduced by nearly 50% compared with a conventional spinning machine.
  • the total size of the spinning machine in the up and down direction can be reduced. Therefore, the operator can access a unit in the upper part of the spinning machine without having to use a workbench, so that handling and maintenance of the units can be performed easily and accurately.
  • the efficiency of the spinning machine can be improved, and overall production of a package can be enhanced.
  • the size of the spinning machine in the up and down direction is reduced compared with the conventional spinning machine, and the winding unit can be disposed at a position lower than that of the winding unit in a conventional spinning machine.
  • a doffing unit of an automatic winder can be shared.
  • the yarn-accumulating device also serves as a direction-changing guide. Because it is not necessary to provide a dedicated direction-changing guide, the entire structure of the spinning machine can be simplified. In addition, the tension of the spun yam temporarily accumulated in the yam accumulating-device is not related to its bending angle, and it can be set to have a smaller value than that of the spun yam before and after the yarn-accumulating device. Therefore, when the yarn-accumulating device serves as the direction-changing guide, the spun yarn can be bent considerably without imposing a large load on the spun yam.
  • the draft process unit and the pneumatic spinning unit are disposed in the first yam path, and the winding unit is disposed at the downstream end of the second yam path. Therefore, the doffing of a package or exchange of a winding core in the winding unit can be easily and accurately accomplished at the downstream end of the second yam path.
  • An angle formed between the second yam path and the first yarn path may be an acute angle.
  • the size of the spinning machine in the up and down direction can be sufficiently reduced.
  • the spinning machine may further include a delivery roller disposed downstream of the first yarn path for delivering the spun yam delivered from the pneumatic spinning unit.
  • the delivery roller may be disposed at an inner side of a portion of the yarn path where the direction is changed from the first yam path to the second yam path.
  • both the delivery roller and the yarn-accumulating device serve as direction-changing guides. Therefore, even if the bending angle from the first yarn path to the second yam path is small, the spun yarn can be smoothly guided to the second yam path.
  • the bending angle of the spun yam at each member can be set larger. Therefore, the tension applied to the spun yarn at each direction-changing guide can be reduced substantially. Thus, the load imposed on the spun yarn can be reduced, and malfunctions such as a break of the spun yarn can be reliably prevented.
  • a contact angle of the spun yam with respect to the delivery roller may be 90 degrees or less. In this spinning machine, there is little probability that the spun yam tangles around the delivery roller. Therefore, productivity of the spinning machine is less likely to decrease.
  • the delivery roller may be made of a material having a high abrasive resistance. In this spinning machine, the roller does not need to be exchanged as frequently, so that operation efficiency of the spinning machine is less likely to decrease.
  • An upstream side of the draft process unit and the winding unit may be disposed on the side closer to a passageway from where an operator operates the spinning machine.
  • the yarn-accumulating device may be disposed behind the draft process unit and the winding unit when viewed from the passageway. Note that the position of the direction-changing guide, when viewed from the passageway, may be on the straight line connecting the draft process unit and the winding unit, or at a position laterally shifted from the straight line. In this spinning machine, because the upstream side of the draft process unit is disposed on the side closer to the passageway for the operator, the operator can easily introduce the sliver to the upstream side.
  • the winding unit is disposed on the passageway side, it is possible for the operator to doff a package and exchange a winding core easily and accurately.
  • the total size of the spinning machine in the up and down direction can be reduced while an arrangement of units desired for the operator is realized.
  • the width of the spinning machine when viewed from the passageway, is smaller when compared with the case in which the entire first yam path and second yam path is disposed on the passageway side. Therefore, more spinning machines can be installed along the passageway.
  • the entire first yam path and second yam path may also be disposed on the side closer to the passageway for the operator.
  • this spinning machine because the entire first yarn path and second yam path is disposed on the side closer to the passageway for the operator, the operator can easily access all the units disposed along both yam paths. Therefore, the operator can easily handle and maintain the units. In other words, the total size of the spinning machine in the up and down direction can be reduced while an arrangement of the units desired for the operator is realized.
  • each unit can be handled and maintained easily, so that production of a package can be improved.
  • Figs. 1 to 3 illustrate an embodiment of a spinning machine according to the present invention.
  • a group of spinning machines 4 is arranged linearly with respect to a base frame 1.
  • the arrangement direction of the group of spinning machines 4 is defined as the left and right direction
  • the direction perpendicular to the left and right direction in the horizontal plane is defined as the front and rear direction.
  • the direction perpendicular to a floor surface on which the base frame 1 is installed is defined as the up and down direction.
  • the orientation of the left, front, upper, and the orientation of the right, rear, lower are illustrated in Figs. 1 and 2 with crossing arrows.
  • a motor box 2 is disposed at the left end of the base frame 1.
  • a blower box 3 is disposed at the right end of the base frame 1.
  • a housing portion 7 is disposed for housing cans 10, which store slivers S.
  • a unit configuration section 8 is disposed in which units constituting the spinning machine 4 are arranged.
  • the spinning machine 4 is used for manufacturing a package P by winding a spun yam Y from the sliver S as raw material, and one can 10 is disposed for each of the spinning machines 4.
  • the can 10 has a cylindrical shape with a closed bottom surface and an upper opening, and has the same size as the can used in the conventional spinning machine.
  • the can 10 may also be formed in a rectangular tubular shape.
  • a yarn path of the spinning machine 4 in the unit configuration section 8 has substantially a shape like " ⁇ " constituted of a first yam path R1 and a second yam path R2 as illustrated in Figs. 1 and 3 .
  • the first yam path R1 is constituted of a horizontal yam path extending from the front side to the rear side of the lower part of the unit configuration section 8.
  • the second yarn path R2 is constituted of a yam path continuing from the first yam path R1, and is guided so as to change the direction of the yam from going towards the rear side to the direction towards the front side of the upper part of the unit configuration section 8 in an obliquely upward manner.
  • the first yam path R1 is constituted not of a strictly straight line in the front and rear direction, but a bent line that is substantially a straight line with parts bending in the up and down direction or in the left and right direction.
  • the direction of the second yarn path R2 may change in the left and right direction within a traverse width of a traverse drum 28 of a winding unit 17, and the center of the traverse width can be regarded as a representative of the yarn path.
  • the spinning machine 4 is constituted of individual units, including a sliver guide 11, a draft process unit 12, a pneumatic spinning unit 13, a delivery roller 14, a yarn-accumulating device 15, a yam clearer 16, the winding unit 17, and the like.
  • the sliver guide 11, the draft process unit 12, the pneumatic spinning unit 13, and the delivery roller 14 are arranged in this order along the first yarn path R1.
  • the yarn-accumulating device 15, the yam clearer 16, and the winding unit 17 are arranged in this order along the second yarn path R2.
  • the draft process unit 12 is a device which draws the sliver S to form the fiber bundle and delivers the fiber bundle to the pneumatic spinning unit 13.
  • the draft process unit 12 is constituted of four pairs of draft rollers nipping and drawing the sliver S.
  • the pairs of draft rollers are driven by a motor (not shown) and rotate in response thereto.
  • a back roller pair 21, a third roller pair 22, a second roller pair 23 around which an apron belt is wound, and a front roller pair 24, each of which being constituted of a pair of top and bottom rollers, are arranged in the front and rear direction from the upstream side in the first yam path R1.
  • the rotation speed of the draft roller pairs 21 to 24 increases towards the downstream side.
  • the sliver S passes through the draft process unit 12, the sliver S is sent to the downstream side and is drawn to be a predetermined thinness based on a ratio between the rotation speeds of neighboring draft roller pairs.
  • the back roller pair 21 on the upstream side is disposed at the front side of the base frame 1, i.e. the side closer to the passageway for the operator. Thus, the operator can easily introduce the sliver S to the back roller pair 21.
  • the pneumatic spinning unit 13 is a device which applies a whirling air current to the fiber bundle so as to spin truly-twisted spun yam Y
  • the pneumatic spinning unit 13 includes a pneumatic spinning nozzle, which forms the whirling air current, and a hollow guide shaft.
  • the pneumatic spinning nozzle and the hollow guide shaft work together so that the whirling air current blows to the sliver S and twists the sliver S. As a result, the spun yam Y is formed.
  • the delivery roller 14 and a nip roller 26 are devices disposed on the downstream side of the pneumatic spinning unit 13 for delivering the yam.
  • the delivery roller 14 is disposed above the nip roller 26, and more specifically, right above the nip roller 26.
  • the delivery roller 14 is driven by a motor (not shown) and rotates in response thereto.
  • the nip roller 26 is a roller that, when working together with the delivery roller 14, nips the spun yam Y.
  • the delivery roller 14 is formed of a metallic material having high abrasive resistance, such as iron or aluminum, and the surface of the nip roller 26 is formed of an elastic material, such as rubber.
  • the yarn-accumulating device 15 has a cylindrical shape with a tapered flange on its downstream side in the second yam path R2.
  • the shape of the yarn-accumulating device 15 is not limited to the illustrated one. As long as the spun yarn Y delivered from the pneumatic spinning unit 13 can be temporarily stored, the shape may also be a cylindrical shape with a tapered flange on the upstream side in the second yam path R2.
  • the yarn-accumulating device 15 is disposed above the delivery roller 14, and more specifically, slightly shifted towards the rear above the delivery roller 14. In addition, the rotation axis of the yarn-accumulating device 15 extends obliquely upward when viewed from the rear to the front of the device.
  • the spun yam Y is guided into the yarn-accumulating device 15 in the direction perpendicular to the rotation axis of the yarn-accumulating device 15 and is wound spirally around the outer circumferential surface thereof so as to be accumulated.
  • the accumulated spun yam Y is drawn out in the direction of the rotation axis of the yarn-accumulating device 15, and after the yam clearer 16 checks the spun yarn Y for any yam defect, the spun yam Y is wound by the winding unit 17.
  • the winding unit 17, which is located at the downstream end of the second yarn path R2 and at the uppermost part of the spinning machine 4, includes the traverse drum 28 which traverses the spun yam Y along the center axis direction of the package P, a cradle arm 29 which supports a winding core of the package P, and the like.
  • the cradle arm 29 is urged by swinging urging means (not shown) in such a direction that the package P is in contact with the traverse drum 28.
  • the traverse drum 28 rotates while being in contact with the package P so as to apply a torque to the package P.
  • the winding unit 17 is disposed at the front side of the base frame 1, i.e. the side closer to the passageway for the operator. Thus, the operator can doff the package P and exchange the winding core easily and accurately.
  • both the delivery roller 14 and the yarn-accumulating device 15 serve as a direction-changing guide.
  • the spun yarn Y delivered from the pneumatic spinning unit 13 is guided by the delivery roller 14 and the yarn-accumulating device 15 such that its direction changes to an obliquely frontward and upward direction, and is delivered to the second yam path R2.
  • the spun yarn Y is bent at an obtuse angle by the delivery roller 14 and is bent at a right angle by the yarn-accumulating device 15.
  • a bending angle ⁇ between the first yam path R1 and the second yam path R2 is an acute angle.
  • This bending angle ⁇ is preferably 90 degrees or less, so that the size of the unit configuration section 8 in the up and down direction is small.
  • the yam path is bent at an obtuse angle by the delivery roller 14.
  • the delivery roller 14 is disposed at an inner side of a portion of the yam path where the direction is changed from the first yam path R1 to the second yam path R2
  • the nip roller 26 is disposed at an outer side of the portion of the yam path where the direction is changed from the first yam path R1 to the second yam path R2.
  • the spinning machine 4 has a structure in which the delivery roller 14, which is made of a metal having high abrasive resistance, is used for bending the yarn path.
  • the yarn path is bent while good utilization rate of the spinning machine 4 is maintained, so that a spinning machine 4 having a reduced base frame height can be realized.
  • a contact angle ⁇ of the spun yam Y around the delivery roller 14 is 90 degrees or less. If the contact angle ⁇ is 90 degrees or more, i.e. the spun yarn Y is in contact with the delivery roller 14 for a larger area, the running spun yam Y may fail to be delivered to the yarn-accumulating device 15 and tangles around the delivery roller 14. If the spun yarn Y tangles around the delivery roller 14, the running of the spun yam Y is stopped by the delivery roller 14 and the spun yam Y cannot be wound around the package P. As a result, productivity of the spinning machine 4 is deteriorated.
  • the contact angle ⁇ is set to 90 degrees or less.
  • the yarn path of the spinning machine 4 in the unit configuration section 8 is formed to have a shape like " ⁇ ", and includes the first yarn path R1 arranged laterally from the front side to the rear side in the lower part of the unit configuration section 8, and the second yam path R2 that continues from the first yam path R1 and is guided to a different direction from that of the first yam path R1 and extends to the upper part of the unit configuration section 8.
  • a distance in the up and down direction between the lower end of the first yam path R1 and the upper end of the second yam path R2 is reduced by almost 50%, compared with the conventional arrangement, to be approximately 600 mm.
  • a distance in the up and down direction between the floor and the winding unit 17 can be approximately 1800 mm, which is just a little higher than the height of a typical operator. Therefore, the operator can access the winding unit 17 without using a workbench. Thus, the operator can handle and carry out maintenance work on the winding unit 17 easily and accurately. Further, the operator can doff the package P and exchange the winding core thereof easily and accurately. In this way, the efficiency of the spinning machine can be improved, and overall production of the package P can be improved.
  • the present invention can be widely applied to spinning machine that includes units such as a draft process unit, a pneumatic spinning unit, and a winding unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
EP09828783.2A 2008-11-28 2009-11-04 Machine de filature Not-in-force EP2366817B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008303398A JP2012031523A (ja) 2008-11-28 2008-11-28 紡績機
PCT/JP2009/005844 WO2010061533A1 (fr) 2008-11-28 2009-11-04 Machine de filature

Publications (4)

Publication Number Publication Date
EP2366817A1 true EP2366817A1 (fr) 2011-09-21
EP2366817A4 EP2366817A4 (fr) 2012-05-30
EP2366817B1 EP2366817B1 (fr) 2013-07-31
EP2366817B2 EP2366817B2 (fr) 2018-01-10

Family

ID=42225423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09828783.2A Not-in-force EP2366817B2 (fr) 2008-11-28 2009-11-04 Machine de filature

Country Status (4)

Country Link
EP (1) EP2366817B2 (fr)
JP (1) JP2012031523A (fr)
CN (1) CN102216505B (fr)
WO (1) WO2010061533A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2749517A1 (fr) * 2012-12-27 2014-07-02 Murata Machinery, Ltd. Fileuse
EP3103750A1 (fr) * 2015-06-11 2016-12-14 Murata Machinery, Ltd. Machine de bobinage de fil et machine à filer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225142A (zh) * 2013-04-09 2013-07-31 经纬纺织机械股份有限公司 一种预加捻细纱机
CN109735977B (zh) * 2019-03-13 2023-09-19 安徽新雅新材料有限公司 交变牵伸五通道纺纱装置及变支变比变捻纱线的纺制方法

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JPS62110927A (ja) * 1985-11-08 1987-05-22 Ishikawa Seisakusho:Kk 精紡機の停止と再起動方法
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EP1422323B1 (fr) * 2002-11-20 2017-04-12 Maschinenfabrik Rieter Ag Métiers à filer à vortex d'air modulaire
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JP2006207083A (ja) † 2005-01-31 2006-08-10 Murata Mach Ltd 空気式紡績機
JP2006306588A (ja) * 2005-04-28 2006-11-09 Murata Mach Ltd 繊維機械における糸の弛み取り装置
DE102005022187A1 (de) * 2005-05-13 2006-11-16 Saurer Gmbh & Co. Kg Anspinnverfahren an einer Luftspinnmaschine sowie Spinnvorrichtung und Luftspinnmaschine
JP5258080B2 (ja) † 2007-05-30 2013-08-07 協同油脂株式会社 等速ジョイント用グリース組成物及びそれを封入した等速ジョイント

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See also references of WO2010061533A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2749517A1 (fr) * 2012-12-27 2014-07-02 Murata Machinery, Ltd. Fileuse
EP3103750A1 (fr) * 2015-06-11 2016-12-14 Murata Machinery, Ltd. Machine de bobinage de fil et machine à filer

Also Published As

Publication number Publication date
CN102216505A (zh) 2011-10-12
JP2012031523A (ja) 2012-02-16
EP2366817A4 (fr) 2012-05-30
WO2010061533A1 (fr) 2010-06-03
EP2366817B2 (fr) 2018-01-10
EP2366817B1 (fr) 2013-07-31
CN102216505B (zh) 2013-11-06

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