EP3511275A1 - Procédé de mise en place automatique d'un fil sur un poste de travail d'une machine textile ainsi que machine textile - Google Patents

Procédé de mise en place automatique d'un fil sur un poste de travail d'une machine textile ainsi que machine textile Download PDF

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Publication number
EP3511275A1
EP3511275A1 EP19150814.2A EP19150814A EP3511275A1 EP 3511275 A1 EP3511275 A1 EP 3511275A1 EP 19150814 A EP19150814 A EP 19150814A EP 3511275 A1 EP3511275 A1 EP 3511275A1
Authority
EP
European Patent Office
Prior art keywords
thread
spool
textile machine
coil
drive
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
EP19150814.2A
Other languages
German (de)
English (en)
Other versions
EP3511275B1 (fr
Inventor
Bernd Bahlmann
Frank Baier
Sebastian Brandl
Thomas Gruber
Robert Hagl
Andreas HOYER
Christian Kettner
Mario Maleck
Romeo Pohn
Robin Wein
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP3511275A1 publication Critical patent/EP3511275A1/fr
Application granted granted Critical
Publication of EP3511275B1 publication Critical patent/EP3511275B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1691—Thread breakage detector means associated with pneumatic cleaning devices, e.g. suction of broken end of yarn
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/10—Tension devices
    • D01H13/104—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices
    • 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
    • D01H4/50—Piecing arrangements; Control therefor for rotor spinning
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/26—Bobbin holders or casings; Bobbin holder or case guards; Bobbin discharge devices
    • 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 method for automatic attachment of a thread to a workstation of a textile machine, wherein one end of the thread is picked up by means of a suction nozzle on a surface of a spool and the yarn is unwound from the spool and sucked into the suction nozzle against its regular take-off direction ,
  • the coil is driven by means of a drive in the reverse direction.
  • the invention relates to a textile machine with at least one job, with a suction nozzle for finding one end of a thread on a surface of a spool and for sucking the thread, with a drive for driving the spool and unwinding the thread from the spool against its regular take-off direction.
  • the textile machine has a Ansetzorgan for automatically attaching the thread and a feeder element for mounting a thread loop from the thread and for feeding the thread loop on the Ansetzorgan.
  • the textile machine has a control.
  • a feeder element is delivered to the sucked-in thread which grasps the thread and forms a thread loop therefrom by being pivoted from the thread receiving position in the area of the reel into a thread transfer position in the region of the piecing element.
  • a textile machine or such a method is for example in the DE 35 15 765 C2 shown. It has been found in such devices or such a method difficult to maintain a constant thread tension when mounting the thread loop. However, this is desirable in order to avoid further cracks of the thread and the formation of twists in the sucked thread piece.
  • Object of the present invention is therefore to propose a method for automatically applying a thread, by means of which the thread tension can be kept substantially constant during formation of the thread loop. Furthermore, a corresponding textile machine to be proposed.
  • a method for automatically applying a thread to a workstation of a textile machine in particular for piecing a thread at a spinning position of a spinning machine, one end of the thread is picked up by means of a suction nozzle on a surface of a spool and the thread is unwound from the spool against its regular take-off direction and sucked into the suction nozzle.
  • the coil is driven by means of a drive in the reverse direction.
  • the spool is also driven during the tightening of the thread loop in the reverse direction and the thread is unwound from the spool.
  • a return rotational speed of the coil is adjusted to the feed movement of the feeder element. Due to the fact that the spool is also driven during the tightening of the thread loop in the reverse direction, the thread length required for the formation of the thread loop is no longer withdrawn from the suction nozzle as in the prior art, but the required thread length is returned directly from the spool , Since the speed of the coil is tuned to the feed movement of the feeder element, it is possible to keep the thread tension of the sucked thread also largely constant.
  • the formation of twists in the sucked piece of thread can thereby be avoided as well as further thread breaks.
  • the thread length required for the preparation can be maintained more accurately at a constant yarn tension.
  • the drive of the coil is preferably first stopped after the suction of the thread end and only set in motion together with the feeder again.
  • the vote on the movement of the feeder element is thereby particularly easy.
  • a suitable for carrying out the method textile machine with at least one job has a suction nozzle for finding one end of a thread on a surface of a coil and for sucking the thread, a drive for driving the coil and unwinding of the thread from the spool against its regular take-off direction and a piecing device for automatic attachment of the thread.
  • the textile machine has a feeder element for clamping a thread loop out of the thread and for feeding the thread loop to the piecing element and a controller.
  • the controller is designed to operate the drive of the coil according to the method described above.
  • the textile machine can be designed as a spinning machine or as a winder. Accordingly, in the context of the present invention, the application of a thread means both piecing on a spinning machine and splicing on a winding machine.
  • the return rotational speed of the bobbin is tuned such that a yarn length returned by the bobbin is always synchronous with a yarn length required to form the yarn loop.
  • the current return speed of the thread from the bobbin is always the same as the current withdrawal speed of the thread through the thread catcher.
  • the drive for turning back the coil and the feeder element on the at least a workstation are arranged. It is particularly advantageous if the job is designed as a so-called self-sufficient job and in addition to the drive and the feeder organ additionally has a workstation's own suction nozzle and a workstation's own Ansetzorgan. The vote of the return speed of the coil on the movement of the feeder element is thus possible in a particularly simple manner.
  • the feed movement of the feeder element is a pivoting movement.
  • the feeder element can thereby be structurally simple and arranged to save space at the workplace.
  • the return rotational speed of the bobbin is tuned such that a thread length actually fed back from the bobbin is always smaller than a thread length currently required for forming the thread loop at any point in time when the bobbin is being reversed.
  • the return speed of the thread from the bobbin is always smaller than the withdrawal speed of the thread through the thread catcher.
  • a tensile force is exerted on the thread, which is greater than the thread holding force on the spool. It is thereby ensured that the thread is not hooked on the surface of the coil due to its hairiness, but can be unrolled neatly.
  • the yarn tension is measured during the reverse rotation of the coil. For example, the crossing a maximum tensile force can be prevented by the piecing process is stopped, or it can be set the return speed of the coil and / or the withdrawal speed of the thread so that a maximum yarn tension is not exceeded and / or a minimum yarn tension is not exceeded.
  • the return rotational speed of the coil is tuned such that at any time of the rewinding of the spool currently fed back from the spool thread length is always greater than a thread length currently required for forming the thread loop. In this way it can be ensured that the thread length required for the formation of the thread loop is only returned from the spool and is not partially or completely pulled out of the suction nozzle again.
  • a speed profile for the reverse drive is specified and the reverse drive is driven during the feed movement of the feeder according to the predetermined speed profile.
  • the speed profile for the reverse rotation drive can at any time of tightening the thread loop different need for nachzuarrinder thread length, bill be taken and the yarn tension in the sucked yarn end are kept substantially constant.
  • the reverse rotation drive is driven according to the measured yarn tension.
  • the return rotational speed of the bobbin can, for example, always be regulated in such a way that a certain, predefinable yarn tension is not exceeded or a specific, specifiable yarn tension not fallen below.
  • Also in conjunction with a speed profile for the reverse rotation drive can be improved by an additional measurement of the yarn tension of the sucked yarn compliance with a constant yarn tension.
  • the workstation has a corresponding measuring device for measuring the thread tension of the sucked thread.
  • This can be arranged, for example, in the region of the coil itself or else on or in the suction nozzle.
  • FIG. 1 shows a schematic sectional view of a job 2 a textile machine 1.
  • the job 2 has in the usual way a spinning device 3, by means of which a thread 4 is produced.
  • the yarn 4 is withdrawn by means of a take-off device consisting of two take-off rolls 5 from the spinning device 3 and fed to a winding device 6, where it is wound by means of a yarn guide 11 on a bobbin 7.
  • the winding device 6 includes for this purpose a drive 8, which drives the coil in its regular direction of rotation DR (see arrow) during the regular operation shown here.
  • the regular withdrawal direction AR of the thread 4 is indicated by an arrow.
  • the thread 4 can go through even more facilities.
  • a paraffining device 13 is provided.
  • the textile machine 1 is designed as a spinning machine
  • the textile machine 1 is a winder.
  • the job 2 no spinning device 3, but only a delivery reel, from which the thread 4 is withdrawn and then as described the winder 6 is supplied.
  • the job 2 of the presently shown textile machine 1 is further designed as a so-called autarkic workstation 2 and has a working owning Ansetzorgan 12, a workstation own suction nozzle 10 and a workstation own feeder organ 9, by means of which after an interruption of production of the thread 4 received by the suction nozzle 10 and the workstation own Ansetzorgan 12 in the form of a thread loop 4b (s. Fig. 3 and 4 ) can be submitted.
  • the suction nozzle 10 is connected in a conventional manner to a vacuum channel 14 and can be acted upon by this with negative pressure to after an interruption of the spinning process or production accumulated on the coil 7 thread end 4a (see Figure two) on the surface of the coil 7 to visit.
  • the suction nozzle 10 is fixedly arranged at the workstation 2.
  • the yarn 4 therefore passes through the suction nozzle 10 during production, into which it enters at an opening 16 and which leaves it again through the mouth 19.
  • the feeder element 9 is provided for receiving the thread 4 with a thread holder 17 and pivotally arranged at the workstation 2, as symbolized by the arrow and the dashed position of the feeder element 9.
  • the textile machine 1 also has a controller 15, by means of which at least the drive 8 and the feeder element 9 can be controlled.
  • the controller 15 can be provided both as a workstation-specific controller 15 and as a central controller 15 of the textile machine 1. It is also possible that the controller 15 is provided as a group control for several jobs 2.
  • FIG. 2 shows the job 2 of the textile machine 1 in a situation in which the production has been interrupted and an end 4a of the thread 4 accumulated on the spool 7.
  • the thread end 4a must therefore be visited on the surface of the coil 7, to which the suction nozzle 10 is subjected to negative pressure and the coil 7 by the drive 8 in the reverse direction RR (see arrow above the coil 7) is driven.
  • the feeder element 9 was already from its rest position or attachment position, which in FIG. 1 is shown in its thread receiving position, which in FIG. 2 is shown, pivoted.
  • the feeder element 9 thus extends with its thread holder 17 in the cross section of the suction nozzle 10, so that the thread 4 is not only sucked into the suction nozzle 10, but also enters the thread holder 17 of the feeder element 9.
  • the thread runs correspondingly from the spool 7 via the mouth 19 of the suction nozzle 10 through the yarn holder 17 of the feeder element 9 and is held by the induced draft, which prevails within the suction nozzle 10.
  • the thread end 4a is already sucked into the suction nozzle 10.
  • FIG. 3 shows the job 2 of the textile machine 1 in another situation in which the formation of the thread loop 4b has just started from the sucked end 4a of the thread 4.
  • the feeder element 9 with the recorded in the thread holder 17 thread 4 is this from the in FIG. 2 shown thread receiving position pivoted back towards the piecing position, as symbolized by the arrow.
  • an additional thread length FL which is illustrated here by a dotted line, is required for forming the thread loop 4b.
  • the coil 7 is for this purpose driven by the drive 8 in the reverse direction RR (see arrow above the coil 7). It must therefore be sucked into the suction nozzle 10, which is just sufficient to hold the yarn end 4a by the pressure prevailing in the suction nozzle 10 negative pressure compared to the prior art, only a smaller length of the thread end 4a.
  • the coil 7 is matched to the movement of the feeder element 9 in such a way that the thread length returned by the reel 7 always behaves synchronously with the thread length FL required to form the thread loop 4b. In other words, at no time does an excess thread length arise, which would eventually twist and interfere with the subsequent piecing process.
  • FIG. 4 finally shows the job 2 of the textile machine 1 in a further situation in which the formation of the thread loop 4b is almost complete and the thread loop 4b is transferred to the Ansetzorgan 12 for preparation.
  • the feeder element 9 is this again in the piecing position, which also in FIG. 1 shown is spent.
  • FIG. 4 again shows the thread length FL accumulated up to this time and required to form the thread loop 4b.
  • the thread loop 4b is separated in a conventional manner, so that a new thread end 4a is formed, which prepares for piecing or for piecing and in the spinning device 3 is returned, where it is spun again.
  • the textile machine 1 is designed as a winding machine, the newly formed thread end 4a is delivered according to a splicer, where it is connected to another thread end 4a, which comes from the drainage coil ago, again.
  • the now separated, original thread end 4a is then disposed of by the suction nozzle 10 and the vacuum channel 14.
  • a measuring device 18 is provided (see Figures 3 and 4 ), over which the thread 4 is guided during the formation of the thread loop 4b, so that the tensile force can be measured.
  • the measuring device 18 is also connected to the controller 15 to control or regulate the return rotational speed of the coil 7 signal transmitting.
  • the measurement of the yarn tension can be provided in addition to the control of the drive 8 according to a speed profile to improve the accuracy of the vote of the return rotational speed on the feed movement of the feeder element 9. But it is also possible, the return speed of the drive 8 only according to the thread tension of the thread 4 to regulate.
  • the present invention is not limited to the illustrated and described embodiments.
  • the method has been described on a textile machine 1 having self-sufficiently trained workstations 2 with at least one workstation's own drive 8 and a workstation's own feeder element 9.
  • the described method can be used particularly advantageously.
  • the drive 8 and the feeder element 9 are arranged on a movable maintenance device of the textile machine 1. Further modifications and combinations within the scope of the claims are possible as well as a combination of features, even if they are shown and described in different embodiments.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP19150814.2A 2018-01-16 2019-01-08 Procédé de rattachage automatique d'un fil sur un poste de travail d'une machine textile ainsi que machine textile Active EP3511275B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018100858.9A DE102018100858A1 (de) 2018-01-16 2018-01-16 Verfahren zum automatischen Ansetzen eines Fadens an einer Arbeitsstelle einer Textilmaschine sowie Textilmaschine

Publications (2)

Publication Number Publication Date
EP3511275A1 true EP3511275A1 (fr) 2019-07-17
EP3511275B1 EP3511275B1 (fr) 2020-08-12

Family

ID=65010639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19150814.2A Active EP3511275B1 (fr) 2018-01-16 2019-01-08 Procédé de rattachage automatique d'un fil sur un poste de travail d'une machine textile ainsi que machine textile

Country Status (5)

Country Link
US (1) US10907278B2 (fr)
EP (1) EP3511275B1 (fr)
JP (1) JP2019163164A (fr)
CN (1) CN109881317B (fr)
DE (1) DE102018100858A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9988624B2 (en) 2015-12-07 2018-06-05 Zymergen Inc. Microbial strain improvement by a HTP genomic engineering platform
US11208649B2 (en) 2015-12-07 2021-12-28 Zymergen Inc. HTP genomic engineering platform
CN112111825A (zh) * 2019-06-19 2020-12-22 铜陵松宝智能装备股份有限公司 一种细纱机自动接头机用的操作台

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515765A1 (de) * 1985-05-02 1986-11-06 W. Schlafhorst & Co, 4050 Mönchengladbach Offenend-rotor-spinnmaschine
EP3135618A2 (fr) * 2015-07-31 2017-03-01 Rieter Ingolstadt GmbH Procede d'aspiration d'un fil a partir d'une bobine et dispositif correspondant
EP3241794A1 (fr) * 2016-05-06 2017-11-08 Rieter Ingolstadt GmbH Procédé de manipulation d'une extrémité de fil et poste de bobinage
WO2018185221A1 (fr) * 2017-04-06 2018-10-11 Maschinenfabrik Rieter Ag Dispositif et procédé d'aspiration, de stockage temporaire et d'évacuation d'un fil, ainsi que machine textile

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DE2728003C2 (de) * 1977-06-22 1986-12-18 Stahlecker, Fritz, 7347 Bad Überkingen Entlang einer Offenend-Spinnmaschine verfahrbare Anspinneinrichtung
US5353582A (en) * 1988-04-14 1994-10-11 Rieter Machine Works, Ltd. System for controlling the movement of an elongated textile structure
US5079908A (en) * 1988-08-27 1992-01-14 Hans Stahlecker Arrangement for carrying out a yarn piecing operation at a spinning point of a spinning machine
US5193332A (en) * 1989-07-04 1993-03-16 Albert Kriegler Spinning or twisting device with a pipe shaped element capable of being subjected to negative pressure
US5509261A (en) * 1993-03-26 1996-04-23 W. Schlafhorst Ag & Co. Stepping motor arrangement for driving a silver feed roller in a rotor spinning machine
JP2806899B2 (ja) * 1995-11-17 1998-09-30 日特エンジニアリング株式会社 線条材の巻取装置
DE10139078A1 (de) * 2001-08-09 2003-02-20 Schlafhorst & Co W Verfahren und Vorrichtung zum Wiederanspinnen einer Offenend-Spinnmaschine
DE10139074B4 (de) 2001-08-09 2009-11-12 Oerlikon Textile Gmbh & Co. Kg Offenend-Rotorspinnmaschine
ITMI20032003A1 (it) * 2003-10-16 2005-04-17 Savio Macchine Tessili Spa Dispositivo viaggiante di servizio alle unita' di filatura dei filatoi open-end
ITMI20050605A1 (it) * 2005-04-11 2006-10-12 Savio Macchine Tessili Spa Dispositivo di gestione del filo per carrelli di servizio per filatoi open-end
JP2014088638A (ja) * 2012-10-30 2014-05-15 Murata Mach Ltd 糸巻取機及び糸巻取方法
DE102014012730A1 (de) * 2014-08-26 2016-03-03 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine bzw. zugehörige Arbeitsstelle
DE102016114267A1 (de) * 2016-08-02 2018-02-08 Maschinenfabrik Rieter Ag Verfahren und Vorrichtung zum Handhaben eines Fadens an einer Arbeitsstelle einer Textilmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515765A1 (de) * 1985-05-02 1986-11-06 W. Schlafhorst & Co, 4050 Mönchengladbach Offenend-rotor-spinnmaschine
EP3135618A2 (fr) * 2015-07-31 2017-03-01 Rieter Ingolstadt GmbH Procede d'aspiration d'un fil a partir d'une bobine et dispositif correspondant
EP3241794A1 (fr) * 2016-05-06 2017-11-08 Rieter Ingolstadt GmbH Procédé de manipulation d'une extrémité de fil et poste de bobinage
WO2018185221A1 (fr) * 2017-04-06 2018-10-11 Maschinenfabrik Rieter Ag Dispositif et procédé d'aspiration, de stockage temporaire et d'évacuation d'un fil, ainsi que machine textile

Also Published As

Publication number Publication date
JP2019163164A (ja) 2019-09-26
US10907278B2 (en) 2021-02-02
US20190218688A1 (en) 2019-07-18
CN109881317B (zh) 2022-12-16
CN109881317A (zh) 2019-06-14
DE102018100858A1 (de) 2019-07-18
EP3511275B1 (fr) 2020-08-12

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