EP0823393B1 - Traverse device having rotating wings - Google Patents

Traverse device having rotating wings Download PDF

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Publication number
EP0823393B1
EP0823393B1 EP97112174A EP97112174A EP0823393B1 EP 0823393 B1 EP0823393 B1 EP 0823393B1 EP 97112174 A EP97112174 A EP 97112174A EP 97112174 A EP97112174 A EP 97112174A EP 0823393 B1 EP0823393 B1 EP 0823393B1
Authority
EP
European Patent Office
Prior art keywords
yarn
guide
traverse
rotating
rotating wings
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.)
Expired - Lifetime
Application number
EP97112174A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0823393A1 (en
Inventor
Futoshi Kitayama
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 EP0823393A1 publication Critical patent/EP0823393A1/en
Application granted granted Critical
Publication of EP0823393B1 publication Critical patent/EP0823393B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/71—Arrangements for severing filamentary materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2836—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn
    • B65H54/2839—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn counter rotating guides, e.g. wings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/003—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to winding of yarns around rotating cylinders
    • 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 traverse device which traverses yarn by rotating two rotating wings in opposite directions along a yarn guide forming a traverse path of a yarn having return points on the left and right sides, and which transfers yarn at the aforementioned return points between the two rotating wings.
  • a conventional traverse device such as that shown in Figure 8 is known, see also US-A-4858838.
  • An arc-shaped yarn guide 101 that forms the yarn traverse path is arranged and the yarn is (reciprocally) traversed between points A and B at the left and right sides of this yarn guide.
  • Two rotating wings 102,103 are positioned above and below this yarn guide 101 so that they enclose it.
  • the lower rotating wing 102 is attached to a clockwise-rotating rotating shaft 104 and the upper rotating wing 103 is attached to a counter clockwise rotating hollow shaft 105 by the same axis as the rotating shaft 104.
  • two rotating wings 102,103 rotate in opposite directions spaced apart at a predetermined spacing H.
  • the tip 102a of the lower rotating wing 102 handles traversing to the left from point B to point A and the tip 103a of the upper rotating wing 103 handles traversing to the right from point A to point B.
  • the left side of the same diagram shows the yarn transfer state at return point A and the right side of the diagram shows the yarn transfer state at return point B.
  • the yarn is transferred from the tip 102a of the lower rotating wing 102 to the tip 103a of the upper rotating wing 103.
  • the yarn is transferred from the tip 103a of the upper rotating wing 103 to the tip 102a of the upper rotating wing 102.
  • auxiliary guides 106,107,108,109 are arranged in the vicinity of the return points A,B and are above and below the yarn guide 101.
  • auxiliary guide 106 projects inwards and stops yarn on the left moving tip 102a while auxiliary guide 107 projects outwards and releases the yarn of the right moving tip 103a.
  • auxiliary guide 109 projects inwards and stops yarn on the right moving tip 103a while auxiliary guide 108 projects outwards and releases the yarn of the left moving tip 102a.
  • a first aspect of the present invention is a traverse device having rotating wings provided with a yarn guide having a guide surface forming a traverse path and two rotating wings which rotate in opposite directions to each other along that yarn guide and are arranged above and below the yarn running direction, and which transfers yarn between the pair of rotating wings at the return points of the traverse path, arranged in a position past the return points with a yarn cutting device for the yarn wound on the rotating wings when the yarn breaks.
  • the yarn cutting device is a heater and that heater is only turned on for a predetermined time when a yarn breakage is predicted.
  • a yarn path restriction guide is arranged which guides the yarn which may wind on the rotating wings at times of yarn breakage, to the yarn cutting device.
  • a second aspect of the present invention is a traverse device having rotating wings provided with a yarn guide having a guide surface forming a traverse path and two rotating wings which rotate in opposite directions to each other along that yarn guide and are arranged above and below the yarn running direction, and which transfers yarn between the pair of rotating wings at the return points of the traverse path, arranged with an air operated yarn path alteration means for a yarn which attempts to become wrapped on the wings when the yarn breaks in a position past the return point.
  • Figure 1 is a perspective view of the main part of the traverse device of the present invention.
  • Figure 2 is a side view showing the transfer of the yarn at the left return point of the traverse path.
  • Figure 3 is a side view showing the transfer of the yarn at the right return point of the traverse path.
  • Figure 4 is a drawing as seen from above Figure 1 and showing mainly the yarn guide and rotating wings.
  • Figure 5 is a vertical section of the traverse device showing the arrangement of another yarn cutting device.
  • Figure 6 is a drawing as seen from direction A of Figure 5 and showing mainly the drive system.
  • Figure 7 is a perspective view of the main part of another embodiment of the traverse device of the present invention.
  • Figure 8 is a diagram showing the main part of a conventional traverse device.
  • Figure 1 is a perspective view of the main part of the traverse device of the present invention
  • Figure 2 is a side view showing the transfer of the yarn at the left return point A of the traverse path
  • Figure 3 is a side view showing the transfer of the yarn at the right return point B of the traverse path.
  • a normal traverse device comprises a plurality of traverse units U1 arranged in a line.
  • One traverse unit U1 is shown in Figure 1.
  • 1 is a yarn guide positioned to the left and right of the traverse center.
  • 2 is a rotating wing that is positioned on the upper side and that rotates in a counter clockwise direction about the traverse center 01.
  • 3 is a rotating wing that is positioned on the lower side and that rotates in a clockwise direction about the traverse center 01.
  • 4 is an auxiliary guide of return point A.
  • 5 is an auxiliary guide of return point B.
  • 6 is a heater arranged as a yarn cutting device attached to a position past the return point B and being the lower surface of the yarn guide 1.
  • 7 is a control device for controlling the turning ON and OFF of the heater.
  • 8 is a yarn path restriction guide for forming a yarn path that cut across the heater and is arranged on the lower surface of the yarn guide 1. All these form the main components of one traverse unit.
  • 11 is a touch roller or friction roller.
  • 12 is a bobbin holder.
  • 35 is a bobbin attached to the bobbin holder 12.
  • P is a package comprising yarn wound on the bobbin 35.
  • 15 is a bracket that supports the auxiliary guide 4 via a block 16.
  • 17 is a bracket that supports the auxiliary guide 5 via a block 16.
  • the heater 6 is a plate heater embedded in the lower surface of the yarn guide 1 and is able to generate enough localised heat to melt a synthetic resin yarn passing the lower surface of the heater 6.
  • the yarn which is carried past the return point B by the upper rotating wing 2 when the yarn breaks and becomes wrapped on the rotating wing wraps while forming a yarn path in a direction tangential (arrow a) from the yarn guide 1 towards the housing part at the base of the rotating wing 2.
  • the heater 6 is arranged in a position that cuts across the yarn path of arrow a facing the base of the rotating wing 2.
  • the yarn which is to be melted by the heater 6 prefferably be yarn as far downstream as possible.
  • the surface area of the heater 6 is small. Due to this, the circular peaked yarn path restriction guide 8 is the lower surface of the yarn guide 1 and is arranged in the vicinity of the return point B. The yarn path of the yarn from the touch roller 11 to the arrow a is bent by the yarn path restriction guide 8 and a yarn which has passed the yarn path restriction guide 8 are positioned directly below the heater 6 and the wrapped yarn is cut downstream from there and wrapping is stopped.
  • the control device 7 performs on/off control of the heater 6.
  • the heater 6 may be set so as to be always on but this increases the power consumption. It has been shown from experience that yarn breakage is statistically more likely when certain operations of the winder mounted on the traverse device are performed. Thus the control device 7 of the winder on which the traverse device is mounted only turns the heater on for a predetermined time before and after the periods when yarn breakage is likely to occur of among the operations of the winder.
  • a traverse device comprising a system that winds a synthetic fiber yarn by a spinning device, godet roller and take-up winder, mounted on a take-up winding device. Furthermore, the device has auto-revolving functions where the take-up winder performs automatic movement of the yarn from a full bobbin to an empty bobbin and also that the device has a yarn threading device that threads the yarn by a manual operation at the start of winding. With this kind of system, the periods when yarn breakage easily occurs is the auto-revolving and yarn threading times.
  • the heater 6 is turned ON when the auto-revolving starts (when the bobbin holder into which has been inserted the empty bobbin starts rotating) or the time when the manual yarn threading starts (when the bobbin holder starts rotating) and the heater is turned OFF a predetermined time period of 5-20 seconds after the completion of auto-revolving or yarn threading.
  • the yarn cutting device is not limited to the heater and may be a mechanical cutter.
  • the yarn guide 1 is positioned above the upper and lower rotating wings 2,3 and the auxiliary guide 4 that projects outwards from the side of the touch roller 11 is positioned below the upper and lower rotating wings 2,3.
  • auxiliary guide 4 is only positioned on the traverse center side enclosing the traverse path. The entire arrangement of the auxiliary guide 4 is positioned so that it is parallel with the surface of the touch roller 11 and moreover in a forward slanting position so that it intersects the running yarn Y at an angle.
  • Point C shows a state where the rotating wing 2 is traversing the yarn to the right of Figure 1 along the yarn guide 1.
  • the yarn guide 1 performs the role of holding the yarn on the upper rotating wing 2 and does not only determine the traverse path but also aids yarn transfer.
  • the auxiliary guide 4 that aids yarn transfer together with yarn guide 1 is only for removing the yarn from the lower rotating wing 3, the degree of flexing of the yarn at the auxiliary guide 4 is restricted to a minimum where it does not obstruct yarn transfer.
  • Point D shows the state where the yarn is being traversed to the left by the rotating wing 3 along the yarn guide 1.
  • Yarn guide 1 takes the yarn separated from the upper rotating wing 2 and does not only determine the traverse path but also aids yarn transfer.
  • the auxiliary guide 5 holds the yarn on the lower rotating wing 3, the amount of flexing at the auxiliary guide 5 becomes greater than auxiliary guide 4.
  • the flexing of the yarn is a not a simple ⁇ -shape but a zigzag.
  • the heater 6 as a yarn cutting device is positioned at this part. Furthermore, in order to ensure the yarn path through this heater 6, the yarn path restriction guide 8 is also arranged.
  • the upper/lower rotating wings 2,3 close together. Due to this, the yarn guide 1 is positioned above the upper/lower rotating wings 2,3 and the auxiliary guides 4,5 are positioned below the upper,lower rotating wings 2,3. As a result, the distance between the tip of the wings 2,3 and the touch roller 11 (friction roller) is approximately uniform at the left and right return points, the delay in yarn movement in the traverse direction by the free length is the same to the left and right and the package shape at the left and right ends is the same.
  • the yarn is transferred in opposite directions between the counter clockwise rotating upper rotating wing 2 and the clockwise rotating lower rotating wing 3 as shown in the drawing via the overlap spaces which carry the yarn.
  • the yarn becomes free at transfer times, naturally returns to the center position of the traverse width due to the yarn tension and deformation of the package shape from instability along the traverse width is prevented.
  • the heater 6 as a yarn cutting device is effective as the winding of yarn by the rotating wings 2,3 is easily caused when the yarn breaks.
  • the upper rotating wing 2 has a slightly smaller diameter than the lower rotating wing 3 and even if the upper/lower rotating wings 2,3 are positioned at an angle, the tips of the rotating wings 2,3 are approximately in alignment with the yarn path Y.
  • the upper rotating wing 2 has two tips 2a,2b separated by 180 ° about the center 01 and the lower rotating wing 3 has two tips 3a,3b separated by 180 ° about the center 02.
  • the rotation center 01 of the upper rotating wing 2 and the rotation center 02 of the lower rotating wing 3 are positioned along the line joining 13 and a seperated by the distance ⁇ .
  • the number of tips of the rotating wings 2,3 is not limited to two and there may be three tips arranged 120 ° apart. Furthermore, one rotating wing may have two tips, the other may have three tips and the angular velocity between the two may be proportionally different.
  • the auxiliary guides 4,5 that aid yarn transfer via the bracket attached to the yarn guide 1, are positioned below the rotating wings 2,3 and the yarn guide 1 and auxiliary guides 4,5 enclose the rotating wings 2,3 from above and below.
  • the auxiliary guide 4 has an outward facing guide surface 4a and the auxiliary guide 5 has an inward facing guide surface 5a which faces the traverse center 01.
  • the bracket 15 of figure 1 has a guide surface 15a that is separated from the traverse path along the yarn guide 1 and when bobbin changing is carried out by a turret rotation, is a surface that grips the yarn separated from the rotating wings 2,3 by the action of the yarn removal guide and the yarn passing guide.
  • this guide surface 15a it is not traversed and a bunch winding is formed on the end of the bobbin 35. If the yarn slips and separates from the guide surface 15a, yarn traversing starts due to the abovementioned details.
  • a central shaft 23 is supported so as to be freely rotatable with respect to the base board 21 via a bearing 22.
  • a hollow body 25 is supported so as to be freely rotatable with respect to the base board 21 via a bearing 24.
  • a drive shaft 27 is supported so as to be freely rotatable with respect to the base board 21 via a bearing 26. This drive shaft 27 is rotated by the pulley 28.
  • a timing pulley 29 is arranged on the pulley 28 side of this drive shaft 27 and a gear 30 is attached to the other side of the pulley 28.
  • the timing pulley 32 that engages the timing belt 31 attached to the timing pulley 29 is attached to the central shaft 23.
  • the lower side of the central shaft 23, in short, the rotating wing 3 rotates in the same direction as the drive shaft 27.
  • a gear 33 that engages with a gear 30 is attached to the hollow body 25 and the lower side of the hollow body 25, in short, the rotating wing 2 rotates in the direction opposite that of the drive shaft 27.
  • the outer side of the hollow body 25 on which is mounted the upper rotating wing 2 is covered and the heater 9 is embedded in the lower surface of the housing 21a that forms a partition between the rotating wing 2 and hollow body 25.
  • the positioning of this as seen from above is shown in figure 6.
  • the heater 9 is a horseshoe shape positioned on the outer periphery of the housing part 21a at the base of the rotating wing 2 and the front edge forms an open end.
  • Figure 7 shows the anti-wrapping system in place of the yarn cutting device.
  • air nozzles 10a,10b that are open towards the outer side and below the yarn guide 1 are arranged. These air nozzles 10a,10b function as a yarn path alteration means for altering the yarn path of the slackened yarn towards the outer side due to the air blown from these air nozzles 10a,10b.
  • the yarn breaks, becomes slack, and the yarn that has passed the return points A,B and is attempring to be carried past either of the rotating wings 2,3 is blown outwards being carried by the air current, wrapping is prevented.
  • the air nozzles 10a,10b are arranged in a position past the return points A,B so as not to influence the correct yarn returning.
  • Each air nozzle 10a,10b blow compressed air from the air source by turning the electromagnetic valve device 10c on and the control device 7 performs the ON/OFF of the electromagnetic valve device 10c.
  • the ON/OFF timing of the electromagnetic valve device 10c is set to a predetermined period of time before and after the operations of the device where yarn breakage may arise but may be operated during normal blowing.
  • the air nozzles 10a,10b are not limited to altering the yarn path to the outer side by the blowing and may alter the yarn path by suction of the yarn end that is attempting to become wrapped on the rotating wing.
  • a yarn cutting device or yarn path alteration means applied to a traverse device arranged with a yarn guide above two rotating wings has been described but as shown in Figure 8, the yarn cutting device or yarn path alteration means of the present invention may be applied to a traverse device arranged with a yarn guide between the two rotating wings.
  • a first aspect of the present invention is, when a yarn breakage occurs, the prevention of wrapping of the cut yarn end on the housing at the base of the rotating wing due to the yarn cutting device cutting the yarn that is carried past the return points and attempts to become wrapped on the rotating wing. As a result, trouble some operations such as dismantling of the wing traverse device for removal of the wrapped yarn are unnecessary.
  • the yarn cutting device instantaneously melts the synthetic resin yarn as it is a heater and moreover, as the turning ON of the heater is limited to a predetermined time including the time when yarn breakage occurs, the yarn may be reliably melted when necessary without an unnecessary use of energy.
  • the yarn cutting device may be only arranged in a necessary place due to the yarn path restriction guides that guide the yarn wound by the aforementioned wings when a yarn breakage occurs to the yarn cutting device. Accordingly, the structure of the device is simplified.
  • a second aspect of the present invention is the prevention of wrapping of the cut yarn end on the housing part at the base of the rotating wing and as a result, trouble some operations such as dismantling of the wing traverse device for removal of the wrapped yarn are unnecessary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Winding Filamentary Materials (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
EP97112174A 1996-08-05 1997-07-16 Traverse device having rotating wings Expired - Lifetime EP0823393B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP22313596 1996-08-05
JP223135/96 1996-08-05
JP8223135A JP2867972B2 (ja) 1996-08-05 1996-08-05 羽根トラバース装置

Publications (2)

Publication Number Publication Date
EP0823393A1 EP0823393A1 (en) 1998-02-11
EP0823393B1 true EP0823393B1 (en) 2001-01-31

Family

ID=16793350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112174A Expired - Lifetime EP0823393B1 (en) 1996-08-05 1997-07-16 Traverse device having rotating wings

Country Status (6)

Country Link
EP (1) EP0823393B1 (zh)
JP (1) JP2867972B2 (zh)
KR (1) KR100307329B1 (zh)
CN (1) CN1173458A (zh)
DE (1) DE69704009T2 (zh)
TW (1) TW351712B (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW387855B (en) * 1998-06-25 2000-04-21 Murata Machinery Ltd Reciprocating device on blades
WO2001030677A1 (fr) * 1998-09-29 2001-05-03 Murata Kikai Kabushiki Kaisha Dispositif transversal a aubes
CN1995506B (zh) * 2006-09-21 2010-05-12 屠建文 并纱机的卷绕成形装置
DE102014117678A1 (de) * 2014-12-02 2016-06-02 Dietze & Schell Maschinenfabrik Gmbh & Co. Kg Wickelgutführungsvorrichtung
DE102015222045B3 (de) * 2015-11-10 2017-02-02 SSM Schärer Schweiter Mettler AG Fadenverlegevorrichtung
EP3569538A1 (en) * 2017-01-13 2019-11-20 Murata Machinery, Ltd. Yarn cutting controlling device, yarn monitoring device, and yarn winding device
CN113620121B (zh) * 2021-08-20 2022-11-22 新昌县蓝翔机械有限公司 一种便于更换卷筒的纺织线卷绕设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4858838A (en) * 1986-10-29 1989-08-22 Allied-Signal Inc. Winder fly waste management system
JP2560918B2 (ja) * 1990-12-28 1996-12-04 村田機械株式会社 トラバース装置
DE4317087A1 (de) * 1993-05-21 1994-11-24 Neumag Gmbh Vorrichtung zum Aufwickeln von Fäden

Also Published As

Publication number Publication date
DE69704009D1 (de) 2001-03-08
TW351712B (en) 1999-02-01
JPH1045325A (ja) 1998-02-17
KR100307329B1 (ko) 2001-11-22
EP0823393A1 (en) 1998-02-11
KR19980018087A (ko) 1998-06-05
DE69704009T2 (de) 2001-09-06
JP2867972B2 (ja) 1999-03-10
CN1173458A (zh) 1998-02-18

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