EP1967620A2 - Verfahren und Vorrichtung zur Einführung des Garnendes in die Spinndüse einer Düsenspinnmaschine - Google Patents

Verfahren und Vorrichtung zur Einführung des Garnendes in die Spinndüse einer Düsenspinnmaschine Download PDF

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Publication number
EP1967620A2
EP1967620A2 EP08466005A EP08466005A EP1967620A2 EP 1967620 A2 EP1967620 A2 EP 1967620A2 EP 08466005 A EP08466005 A EP 08466005A EP 08466005 A EP08466005 A EP 08466005A EP 1967620 A2 EP1967620 A2 EP 1967620A2
Authority
EP
European Patent Office
Prior art keywords
introducing
yarn
head
spinning nozzle
spinning
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Withdrawn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
EP08466005A
Other languages
English (en)
French (fr)
Other versions
EP1967620A3 (de
Inventor
Evzen Pilar
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 CZ sro
Original Assignee
Rieter CZ AS
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 CZ AS filed Critical Rieter CZ AS
Publication of EP1967620A2 publication Critical patent/EP1967620A2/de
Publication of EP1967620A3 publication Critical patent/EP1967620A3/de
Withdrawn legal-status Critical Current

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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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/002—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for false-twisting spinning machines
    • 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

Definitions

  • the invention relates to the method for introducing of yarn end into a spinning nozzle of the jet spinning machine, during which the yarn is handed over to the introducing head of an attending device which is movably mounted along at least one row of operating units, and which is capable to stop at in front of the specified operating unit requiring attendance, while the introducing head transports a yarn end for introducing to an outlet opening of the spinning nozzle.
  • the invention also relates to the attending device of the jet spinning machine, which is movable along a row of operating units, while it comprises the introducing head adjustable during attendance of an operating unit into a position for take-over of the yarn after spinning interruption, and further adjustable into a introducing position of the yarn end for introducing into the spinning nozzle.
  • the pressure nozzle in the spindle carrying member is activated, out of which an air stream comes out towards the nozzle block, and an underpressure/suction nozzle positioned in the direction of yarn introduction behind the block of spinning nozzle, into which the yarn through the spinning nozzle is sucked.
  • the goal of the invention is to simplify and speed up yarn introducing and to develop a suitable device for yarn introducing, this at a repeatedly reliable introducing of the yarn end into the spinning unit.
  • the goal of the invention has been achieved through a method for introducing of yarn end into a spinning nozzle of the jet spinning machine, whose principle consists in that, at handing over the yarn into the introducing head the yarn on the introducing head is guided into a defined position, it is caught in the introducing head and there is created an end of yarn for introducing, which in the defined position is held at the introducing head, which after then shifts to an outlet opening of the spinning nozzle into its introducing position, consequently the yarn end releases from holding at the introducing head and it is exposed to suction from outlet opening of the spinning nozzle, through which the yarn end straightens towards an outlet opening of the spinning nozzle and it is sucked into an outlet opening of the spinning nozzle, through which it is repeatedly achieved that the yarn end is introduced for introducing into the spinning nozzle for spinning renewal.
  • Another advantage of this method is that at introducing the prepared yarn end into the spinning nozzle, it is not necessary to open the spinning nozzle, or to divide its body into several parts, by which this part of the jet spinning machine is simplified and much more cheaper than when compared with the background art.
  • the yarn end from holding status at the introducing head releases either in the introducing position of introducing head or it releases during the reverse motion of introducing head from introducing position into an initial position of the introducing head.
  • the introducing head in its introducing position is centered towards an outlet opening of the spinning nozzle.
  • the yarn at introducing of yarn end into the spinning nozzle of the jet spinning machine is guided into its working track on the operating unit.
  • the yarn before introduction the end for introducing into an outlet opening of the spinning nozzle, is held in a working track in an operating unit.
  • Principle of an attending device of the jet spinning machine which is movable along a row of operating units, while it comprises an introducing head adjustable at attendance of the operating unit into a position for take-over of yarn after spinning interruption and further adjustable into an introducing position of yarn end for introducing into the spinning nozzle consists in that, the introducing head is provided with the means for catching the yarn in a defined position and further it is provided with the means for forming a yarn end for introducing and the means for holding a yarn end for introducing in defined position at the introducing head.
  • the means for catching the yarn in defined position on the introducing head are formed by a clamp.
  • the means for holding the yarn end for introducing in defined position at the introducing head are formed by an auxiliary suction nozzle optionally connectable to an underpressure source or they are formed by a clamp or clip.
  • the introducing head is provided with at least one centring means, which at least in the introducing position of the introducing head co-operates with the centring means on an operating unit being attended.
  • the centring means on the introducing head is formed by a prismatic enlargement, while the centring means on an operating unit is formed by a centring element positioned on each operating unit.
  • the centring means on the introducing head is formed by a centring element, while the centring means on the operating unit is formed by a prismatic enlargement on each operating unit.
  • auxiliary yarn guide into a working track between the introducing head and yarn winding mechanism, while the auxiliary guide comprises guiding means reversibly adjustable to the operating unit and backwards.
  • the invention is schematically represented on the drawing, where the Fig. 1 shows a view to the introducing head, the Fig. 2 a side view on the introducing head in introducing position at the spinning nozzle.
  • Method for introducing the yarn A end into the spinning nozzle 1 of the jet spinning machine is being performed after spinning interruption, e.g. due to breakage of yarn A on an operating unit or after a complete winding of a bobbin and after replacement of the wound bobbin for an empty tube.
  • spinning interruption e.g. due to breakage of yarn A on an operating unit or after a complete winding of a bobbin and after replacement of the wound bobbin for an empty tube.
  • end of yarn A found out on a bobbin (at spinning renewal after breakage) is utilised or the end of auxiliary yarn on an auxiliary bobbin on the attending device (at spinning renewal after a total winding of a bobbin and after bobbin replacement) is utilised.
  • the yarn A is caught on the introducing head 2 in the position Y1 , e.g. by means of underpressure from underpressure channel 21 , through which the yarn A end is formed for introducing having an exactly defined length, which is situated on the introducing head 2 in exactly defined position.
  • the introducing head 2 shifts to outlet opening 11 of the spinning nozzle 1 into its introducing position, where it stops at outlet opening 11 of the spinning nozzle 1 .
  • a compressed air for creation of underpressure at outlet opening 11 of the spinning nozzle 1 .
  • the introducing of yarn A end into an outlet opening 11 of the spinning nozzle 1 is performed so that in the introducing position of the introducing head 2 the yarn A is released at first from holding in position Y1 , and consequently the yarn A is released from holding in the position Y .
  • the introducing of yarn A end into outlet opening 11 of the spinning nozzle 1 is performed so that in introducing position of the introducing head 2 the yarn A is at first released from holding in position Y and consequently from holding in position Y1 .
  • the introducing of yarn A end into outlet opening 11 of the spinning nozzle 1 is performed so that in introducing position of the introducing head 2 the yarn A is released simultaneously both from holding in position Y and in position Y1 .
  • the introducing of yarn A end into outlet opening 11 of the spinning nozzle 1 is performed at a reverse motion of the introducing head 2 from its introducing position into its initial position before transfer into the introducing position, while during this reverse motion of the introducing head 2 the yarn A releases either at first from holding in position Y1 and consequently it releases from holding in position Y , or the yarn A releases at first from holding in position Y and consequently from holding in position Y1 , or the yarn A releases simultaneously both from holding in position Y and in position Y1 .
  • the introducing of yarn A into outlet opening 11 of the spinning nozzle 1 is performed so that in introducing position of the introducing head 2 the yarn A is released from holding in position Y1 and consequently at reverse motion of the introducing head 2 from its introducing position into its initial position before transfer into the introducing position, while during this reverse motion of the introducing head 2 the yarn A releases from holding in position Y .
  • the device for introducing the yarn A end into the spinning nozzle 1 of the jet spinning machine is arranged on the attending device, which is adjustable along at least one row of operating units, that the machine contains. Except for further joints and means the device comprises also the introducing head 2 , which is adjustable at least towards the operating unit and backwards respectively towards the outlet opening 11 of the spinning nozzle 1 and backwards.
  • the introducing head 2 on the operating unit is able to take the position for takeover of yarn A , in which the yarn A is handed over to the introducing head for introducing of yarn A end into the spinning nozzle 1 , and further the introducing head 2 on the operating unit is able to take the introducing position at outlet opening of the spinning nozzle 1 , in which the yarn A end for introducing is introduced into an outlet opening of the spinning nozzle 1 .
  • the introducing head 2 comprises means for catching the yarn A in position Y e.g. it comprises the clamp 20 .
  • the introducing head 2 further comprises means for breakage of yarn A in position X between the position Y and a free end of yarn A found out on the not represented bobbin or prepared from auxiliary yarn on the attending device (at spinning renewal after replacement of fully wound bobbin for an empty tube).
  • the means for breakage of yarn A in position X are formed by a suitable cutting device, or by a rotation milling machine coupled with a drive, or by a scissors or a simple knife-edge or they are formed by other suitable means.
  • the means for breakage of yarn A in position X may be arranged also on another working joint of attending device than the introducing head 2 . By breakage of yarn A in position X the end of yarn A for introducing is formed in position Y .
  • the introducing head 2 further comprises means for holding the yarn A end for introducing at the introducing head 2 in position Y1 laying in section Z between position Y of catching the yarn A and position X of breakage the yarn A for creating the end of yarn A for introducing.
  • These means are in the represented example of embodiment formed by an auxiliary suction nozzle 21 optionally connectable to the source of underpressure.
  • the means for holding the end of yarn A for introducing at introducing head 2 are formed by mechanical means, e.g. by a clip, clamp etc.
  • the couple of the introducing head 2 - spinning nozzle 1 is provided with the centring means, e. g. with a prismatic enlargement 22 on a face side of the introducing head 2 and with the centring element 10 mounted on operating unit being attended, e.g. mounted on a body of the spinning nozzle 1 .
  • the prismatic enlargement is formed on the operating unit being attended, e.g. on a body of the spinning nozzle 1
  • the centring element 10 is mounted on a face side of the introducing head 2 .
  • the centring element 10 is formed by a pin or peg.
  • the centring means of the couple of the introducing head 2 - spinning nozzle 1 are formed by other suitable elements.
  • the spinning nozzle 1 for sucking of an introducing end of the yarn A at its introducing into the spinning nozzle 1 is provided with at least one inlet of compressed air for creating of underpressure in outlet opening 11 for suction of introducing end of yarn A into the spinning nozzle 1 .
  • the attending device is provided with a not represented auxiliary yarn guide into a working track between the introducing head 2 and yarn winding device, while working activity of an auxiliary guide is co-ordinated with working activity of the introducing head 2 .
  • the auxiliary guide comprises guidance means reversibly adjustable towards the operating unit and backwards, while for further improvement of introducing of yarn end A for introducing into outlet opening 11 of the spinning nozzle 1 the auxiliary guide may hold the yarn in the working track even also during introducing the yarn end A for introducing into outlet opening 11 of the spinning nozzle 1 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP08466005A 2007-03-08 2008-03-04 Verfahren und Vorrichtung zur Einführung des Garnendes in die Spinndüse einer Düsenspinnmaschine Withdrawn EP1967620A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ20070178A CZ2007178A3 (cs) 2007-03-08 2007-03-08 Zpusob a zarízení k zavádení konce príze do sprádací trysky tryskového doprádacího stroje

Publications (2)

Publication Number Publication Date
EP1967620A2 true EP1967620A2 (de) 2008-09-10
EP1967620A3 EP1967620A3 (de) 2011-05-11

Family

ID=39495310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08466005A Withdrawn EP1967620A3 (de) 2007-03-08 2008-03-04 Verfahren und Vorrichtung zur Einführung des Garnendes in die Spinndüse einer Düsenspinnmaschine

Country Status (3)

Country Link
EP (1) EP1967620A3 (de)
CN (1) CN101260583B (de)
CZ (1) CZ2007178A3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105019091A (zh) * 2015-08-04 2015-11-04 湖州宏鑫绸厂 一种自动夹断头的光电式断纱自停装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ2015817A3 (cs) * 2015-11-16 2017-05-10 Rieter Cz S.R.O. Způsob obnovení předení na tryskovém dopřádacím stroji

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0433832A1 (de) 1989-12-19 1991-06-26 Maschinenfabrik Rieter Ag Vorrichtung zum Einfädeln eines Fadens durch eine Öffnung einer Textilmaschine
WO1994000626A1 (de) 1992-06-25 1994-01-06 Maschinenfabrik Rieter Ag Verfahren und vorrichtung zum automatischen ansetzen eines neu zu spinnenden garnes an ein bestehendes garnende
EP0807699A2 (de) 1996-05-16 1997-11-19 Murata Kikai Kabushiki Kaisha Anspinnverfahren und -vorrichtung für eine Spinnmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047939B2 (ja) * 1981-10-22 1985-10-24 村田機械株式会社 空気式紡績装置における糸端案内方法
JP2616428B2 (ja) * 1994-01-25 1997-06-04 村田機械株式会社 紡績機の糸継ぎ方法
JP2658901B2 (ja) * 1994-09-05 1997-09-30 村田機械株式会社 紡績装置
DE102007009074A1 (de) * 2007-02-24 2008-08-28 Oerlikon Textile Gmbh & Co. Kg Spinnvorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0433832A1 (de) 1989-12-19 1991-06-26 Maschinenfabrik Rieter Ag Vorrichtung zum Einfädeln eines Fadens durch eine Öffnung einer Textilmaschine
WO1994000626A1 (de) 1992-06-25 1994-01-06 Maschinenfabrik Rieter Ag Verfahren und vorrichtung zum automatischen ansetzen eines neu zu spinnenden garnes an ein bestehendes garnende
EP0807699A2 (de) 1996-05-16 1997-11-19 Murata Kikai Kabushiki Kaisha Anspinnverfahren und -vorrichtung für eine Spinnmaschine
US5813209A (en) 1996-05-16 1998-09-29 Murata Kikai Kabushiki Kaisha Piecing method and device for a spinning machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105019091A (zh) * 2015-08-04 2015-11-04 湖州宏鑫绸厂 一种自动夹断头的光电式断纱自停装置

Also Published As

Publication number Publication date
EP1967620A3 (de) 2011-05-11
CN101260583A (zh) 2008-09-10
CN101260583B (zh) 2011-07-27
CZ2007178A3 (cs) 2008-09-17

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