EP0744369A1 - Yarn winding mechanism - Google Patents

Yarn winding mechanism Download PDF

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Publication number
EP0744369A1
EP0744369A1 EP96303238A EP96303238A EP0744369A1 EP 0744369 A1 EP0744369 A1 EP 0744369A1 EP 96303238 A EP96303238 A EP 96303238A EP 96303238 A EP96303238 A EP 96303238A EP 0744369 A1 EP0744369 A1 EP 0744369A1
Authority
EP
European Patent Office
Prior art keywords
yarn
suction device
yam
winding mechanism
nozzle end
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.)
Withdrawn
Application number
EP96303238A
Other languages
German (de)
English (en)
French (fr)
Inventor
Simon John Davies
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.)
Rieter Scragg Ltd
Original Assignee
Rieter Scragg 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 Rieter Scragg Ltd filed Critical Rieter Scragg Ltd
Publication of EP0744369A1 publication Critical patent/EP0744369A1/en
Withdrawn legal-status Critical Current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
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/34—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails
    • 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

  • This invention relates to winding mechanisms for textile yarns in which a running yarn is fed to a tube to form a package thereon by means of a yam guide reciprocating along a path parallel to the axis of the tube, the periphery of the tube or package being driven by contact with a driving bowl, and the method of operation of such mechanisms.
  • the invention relates to yarn winding mechanisms in which the removal of fully wound packages and their replacement by empty tubes is performed automatically.
  • the yam passing into the suction gun is again moved by a lever or other mechanism and caused to pass across a catcher device on the adjacent end cap so that the yarn can begin to wrap around the new tube.
  • the yarn must break so that the yam in the suction gun can go to waste and the yarn coming from the processing section of the machine can be wound on the tube to form a new package.
  • a disadvantage of the known arrangements is that the yam, in passing from a centrally located fixed guide, i.e.
  • the invention provides a yam winding mechanism comprising a cradle having end caps for supporting a tube therebetween, one of the end caps having a yarn catcher device thereon, and a suction device having a nozzle end positioned adjacent the cradle in a first position spaced from but substantially aligned radially with that one end cap and adapted to entrain a running yarn thereinto, the suction device being movable so that the nozzle end is movable from the first position to a second position adjacent that end cap, whereby yarn passing into the suction device is guided to the end of the tube supported by that end cap.
  • the mechanism may comprise a tailing arm mounted on the suction device adjacent the nozzle end operable on such movement of the suction device to deflect the yarn across the one end cap whereby the yam is caught by the yarn catcher device to cause breakage of the yarn and form a tail winding on the tube.
  • the suction device may be mounted so that the nozzle end is movable laterally of the winding mechanism between the first position and a third position in which the nozzle end is positioned substantially centrally of the winding mechanism.
  • the suction device is mounted to pivot about axes remote from the nozzle end.
  • the suction device may be mounted in a position substantially aligned radially with the one end cap.
  • the yarn winding mechanism may comprise a cutting device for cutting the running yam.
  • the mechanism may also include a traversing yam guide, and a centrally disposed point of origin yam guide which may be movable so as to disengage the yam from the traversing yarn guide.
  • the mechanism may include a control device operable to lift the point of origin yam guide on completion of winding of a full package, simultaneously with moving the suction device from the first position to the third position.
  • the cutting device may be attached to the point of origin yam guide to move therewith.
  • the invention also provides a method of operating a yarn winding mechanism in which an empty tube is supported by end caps in a cradle, one of the end caps having a yarn catcher device thereon, comprising entraining a running yarn into a nozzle end of a suction device positioned adjacent the cradle in a first position spaced from but substantially aligned radially with that one end cap, moving the suction device whereby the nozzle end moves from the first position to a second position adjacent that end cap and guiding yarn passing into the suction device to an end of the tube supported by that end cap.
  • the method may comprise deflecting the yarn across the one end cap by moving a tailing arm whereby the yarn is caught by the yarn catcher device to cause breakage of the yarn and form a tail winding on the tube.
  • the suction device may then be moved so that the nozzle end moves back to the first position.
  • the method may also comprise moving the suction device so that the nozzle end moves laterally of the winding mechanism from the first position to a third position in which the nozzle end is positioned substantially centrally of the winding mechanism, cutting the running yarn and entraining the cut yarn into the nozzle end of the suction device, and then moving the suction device so that the nozzle end moves laterally of the winding mechanism back to the first position prior to moving it as aforesaid to the second position.
  • the method may comprise firstly forwarding a running yarn from a point of origin yarn guide disposed centrally of the winding mechanism to a first tube supported in the cradle whilst the suction device is in the first position, forming a fully wound package on the first tube, disengaging the yarn from the traversing yam guide, moving the suction device so that the nozzle end moves from the first position to the third position, cutting the running yarn and entraining the yarn into the nozzle end, moving the suction device so that the nozzle end moves from the third position to the first position, and exchanging the fully wound package in the cradle for a second tube prior to moving the suction device so that the nozzle end moves as aforesaid to the second position.
  • the method may also include disengaging the yarn from the traversing yarn guide by moving the point of origin yam guide prior to moving the nozzle end of the suction device from the first position to the third position and cutting the running yam.
  • the method may also include moving a cutting device from an inoperative position to a cutting position together with the disengaging movement of the point of origin yam guide, and then operating the cutting device to cut the running yam. The cutting device then may be moved to back to its inoperative position together with a return movement of the point of origin yam guide and moving the nozzle end of the suction device from the third position to the first position.
  • a package winding mechanism 10 in the package winding configuration prior to winding a package on an empty tube 11.
  • the tube 11 is supported in a cradle 12 by means of end caps 13 and is driven in rotation by peripheral contact with a driving bowl 14.
  • a running yarn 16 is forwarded from the yarn processing section (not shown) of a textile machine in which the winding mechanism is mounted, via a centrally disposed point of origin yarn guide 17 and a traversing yarn guide 18 to the nip 19 between the tube 11 and the driving bowl 14.
  • One of the end caps 13a has a yam catcher device 20 thereon.
  • a cutting device 29 is mounted adjacent the point of origin yam guide 17 in what is an inoperative position as shown in Figs. 1 and 2. Such an arrangement is conventional.
  • the winding mechanism 10 comprises a suction device 21 which is mounted substantially in alignment radially with the end cap 13a.
  • the suction device 21 has a nozzle end 22 positioned adjacent the cradle 12 in a first position spaced from but also substantially aligned radially with the end cap 13a.
  • the suction device 21 is adapted to entrain the running yam 16 into the nozzle end 22, the suction device 21 being mounted to pivot about a first axis 23 and a second axis 24 for purposes to be described later.
  • Yarn 16 when drawn into the suction device 21, is passed to waste along a flexible pipe 25.
  • Mounted on the suction device 21 adjacent the nozzle end 22 is a tailing arm 26.
  • the point of origin yam guide 17 is mounted on the cutting device 29.
  • a control device 28 causes operation of cylinder 31 to lift the point of origin yarn guide 17 to disengage the yarn 16 from the traversing yarn guide 18 and to lift the cutting device 29 from its inoperative position to a cutting position, and causes operation of cylinder 30 to pivot the suction device 21 about the second axis 24 so that the nozzle end 22 is in the third position, all as shown in Fig. 3.
  • the control device 28 then operates the cutting device 29 to cut the yarn 16.
  • One cut end of the yarn 16 is attached to the package 15, but the other cut end coming from the yarn processing section of the textile machine is entrained into the nozzle end 22 of the suction device 21.
  • the control device then returns the cutting device 29 and point of origin yarn guide 17 to their respective inoperative and normal operating positions, and the suction device 21 back to the position shown in Figs. 1 and 2 with the nozzle end 22 in the first position.
  • the fully wound package 15 is then removed from the cradle 12 either manually or preferably by an automatic doffing mechanism (not shown) and replaced by a new empty tube 11.
  • the next movement of the suction device 21 is then initiated by the control device 28.
  • the cylinder 32 is operated to pivot the suction device 21 about the first axis 23 and move the nozzle end 22 to the second position adjacent the end cap 13a as shown in Fig. 4. This movement causes yarn 16 running to the suction device 21 to be guided to the end 33 (Fig.
  • the total angle of wrap of the yam 16 about the various yam guides, at the time of it breaking to commence forming the tail winding on the empty tube 11, is in the region of 120°. This is considerably less than with the known winding mechanisms, thereby providing that the yarn tension in the region of the end cap 13a is much greater than was previously the case. This results in a greater range of running speeds for the more delicate yams, greater control of the yarn end after cutting, a reduced suction requirement, a more positive laying of the yam on the end cap 13a and the yarn breaks more readily to commence the forming of the tail winding. In addition a dangerous yarn cutting catcher device is not required on the end cap, thereby reducing the cost of the end cap.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP96303238A 1995-05-23 1996-05-09 Yarn winding mechanism Withdrawn EP0744369A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9510826.2A GB9510826D0 (en) 1995-05-23 1995-05-23 Yarn winding mechanism
GB9510826 1995-05-23

Publications (1)

Publication Number Publication Date
EP0744369A1 true EP0744369A1 (en) 1996-11-27

Family

ID=10775178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96303238A Withdrawn EP0744369A1 (en) 1995-05-23 1996-05-09 Yarn winding mechanism

Country Status (3)

Country Link
EP (1) EP0744369A1 (ja)
JP (1) JPH08324887A (ja)
GB (1) GB9510826D0 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1561717A1 (en) * 2004-02-06 2005-08-10 Murata Kikai Kabushiki Kaisha Method for winding a thread reserve on an empty bobbin and spinning machine comprising a device for carrying out said method
CN108639862A (zh) * 2018-07-02 2018-10-12 浙江凯成纺织机械有限公司 一种络筒机的纱线驱动机构
CN108657874A (zh) * 2018-07-02 2018-10-16 浙江凯成纺织机械有限公司 一种纱线络筒机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324558A1 (fr) * 1975-09-20 1977-04-15 Krupp Gmbh Procede et dispositif permettant de former a des fins de nouage un fil de reserve d'une longueur determinee sur des bobines de machines textiles
US4105165A (en) * 1976-04-27 1978-08-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Arrangement for providing transfer tail windings on a bobbin
GB2044813A (en) * 1979-03-22 1980-10-22 Norwesco Inc Improved strand winding device and support cap for yarn tube carriers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2324558A1 (fr) * 1975-09-20 1977-04-15 Krupp Gmbh Procede et dispositif permettant de former a des fins de nouage un fil de reserve d'une longueur determinee sur des bobines de machines textiles
US4105165A (en) * 1976-04-27 1978-08-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Arrangement for providing transfer tail windings on a bobbin
GB2044813A (en) * 1979-03-22 1980-10-22 Norwesco Inc Improved strand winding device and support cap for yarn tube carriers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1561717A1 (en) * 2004-02-06 2005-08-10 Murata Kikai Kabushiki Kaisha Method for winding a thread reserve on an empty bobbin and spinning machine comprising a device for carrying out said method
CN108639862A (zh) * 2018-07-02 2018-10-12 浙江凯成纺织机械有限公司 一种络筒机的纱线驱动机构
CN108657874A (zh) * 2018-07-02 2018-10-16 浙江凯成纺织机械有限公司 一种纱线络筒机
CN108639862B (zh) * 2018-07-02 2023-12-19 浙江凯成智能设备股份有限公司 一种络筒机的纱线驱动机构
CN108657874B (zh) * 2018-07-02 2023-12-19 浙江凯成智能设备股份有限公司 一种纱线络筒机

Also Published As

Publication number Publication date
JPH08324887A (ja) 1996-12-10
GB9510826D0 (en) 1995-07-19

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