EP1284313B1 - Verfahren und Vorrichtung zum Wiederanspinnen einer Offenend-Spinnmaschine nach Spulenwechsel - Google Patents

Verfahren und Vorrichtung zum Wiederanspinnen einer Offenend-Spinnmaschine nach Spulenwechsel Download PDF

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Publication number
EP1284313B1
EP1284313B1 EP02012278A EP02012278A EP1284313B1 EP 1284313 B1 EP1284313 B1 EP 1284313B1 EP 02012278 A EP02012278 A EP 02012278A EP 02012278 A EP02012278 A EP 02012278A EP 1284313 B1 EP1284313 B1 EP 1284313B1
Authority
EP
European Patent Office
Prior art keywords
yarn
auxiliary yarn
spinning
suction nozzle
auxiliary
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
EP02012278A
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German (de)
English (en)
French (fr)
Other versions
EP1284313A1 (de
Inventor
Paul Straaten
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Saurer GmbH and Co KG
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 Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1284313A1 publication Critical patent/EP1284313A1/de
Application granted granted Critical
Publication of EP1284313B1 publication Critical patent/EP1284313B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/013—Carriages travelling along the 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
    • D01H4/48—Piecing arrangements; Control therefor

Definitions

  • the invention relates to a method according to the preamble of Claim 1 and a device according to the Preamble of claim 10.
  • Open-end spinning machines are known to have a variety juxtaposed jobs, each over a spinning device for producing a thread and a Winding device with a creel and a Fadenchangier observed for producing a cross-wound bobbin feature.
  • the jobs of such open-end spinning machines are usually supplied by automatically operating service units that intervene when an operating case has occurred at one of the jobs.
  • Such an operating case is, for example, at a yarn breakage or when the cross-wound bobbin has reached its prescribed diameter at one of the jobs and must be replaced with a new empty tube.
  • service units can not only fix thread breaks, but also carry out automatically cross coil / empty tube change.
  • the full cheese is removed from the creel of the relevant job and transferred to a machine-own transport device.
  • the known service units have numerous handling devices, such as a pivotally mounted, niendbeetztressbare suction nozzle for receiving the accrued to the cheese thread end in the event of yarn breakage and a delivery device with a pivotally mounted delivery pipe to provide a required after a cheese / empty tube change to re-spinning auxiliary thread. Furthermore, these service units have a thread laying device for fixing the new spun yarn to the empty tube or for creating a thread reserve winding.
  • the known open-end spinning machines are for this reason, in addition to their regular vacuum system, which provides the spin vacuum required for the spinning process, equipped with so-called Saugtraversen.
  • the Saugtraversen extending along the jobs are arranged in the region of the superstructure of the spinning machine and have at each of the jobs on a rotary valve, to which the service unit docks in the case of operation with a trunk-like device.
  • the invention is based on the aforementioned prior Technique based on the task, a method or to develop a device that is a proper one Operation of jobs, in particular their supply by a service unit allows without a costly Negative pressure supply of the operator is necessary.
  • the method according to the invention has the particular advantage that negative pressure is not required either in the removal of a thread break or in the case of a cross-wound bobbin / empty tube change operation on the part of the service unit. That is, the vacuum required in these cases is available in each case via the workstation's own suction nozzle, which is connected directly to the vacuum system of the open-end spinning machine. This means that in the case of a simple yarn break, the service unit is no longer required, since the workstations are largely self-sufficient due to the workstation's own suction nozzle and the workstation's own piecing element.
  • the service unit merely provides the auxiliary thread needed after a cheese / empty tube change for re-spinning and relocates the thread by means of the auxiliary thread in the area of the creel.
  • claims 2 and 3 are each an advantageous Order described in the mouth of the delivery pipe the auxiliary thread delivery device of the service unit in their different operating positions can be positioned.
  • the described sequences is a two-time, Safe transfer of the auxiliary thread to the employees own Suction nozzle ensures and thus created the condition both for a functional transfer of the auxiliary thread to the workstation's own piecing, as well as for a reliable disposal of the auxiliary thread at the end of the Piecing.
  • the displaced in the region of the creel new spun yarn is defined defined on a rotatably mounted in the creel empty tube. That is, the new spun yarn is clamped for example between one of the sleeve plate of the creel and the adjacent end face of the empty tube.
  • the auxiliary thread provided by the delivery device is separated before its final transfer to the workstation's own suction nozzle by a thread cutting device arranged within the auxiliary thread delivery device (Anspr.6). Since the suction nozzle is positioned at this time immediately before the mouth of the delivery tube, not only a secure separation of the auxiliary thread but also its reliable acquisition is ensured in the suction nozzle.
  • the accepted from the suction nozzle auxiliary thread is first transferred to a job's own Anspinnorgan, there prepared and held for the somewhat later piecing. That is, the thread beginning of the auxiliary thread is at least partially freed from its spin rotation in Anspinnorgan.
  • the method step according to claim 8 ensures that only perfect yarn is wound on the empty tube. That is, before setting the new spun yarn on the empty tube ensures that both the auxiliary thread and the piecing have gone through and sucked.
  • the service unit as in Anspr.9 set forth, a delivery tube which is arranged so that a Workplace own suction nozzle successively both the Pick up the thread beginning of the auxiliary thread and to a Hand-over own spin-on as well as the himself between auxiliary tube and Anspinnorgan extending auxiliary thread after the separation seize again and after the Dispose of sponges.
  • a thread laying device on the service unit present the newly spun thread in the area of Transferred creel and there determines the empty tube.
  • This so-called thread laying device preferably provides that the thread, as described in claim 14, between the adjacent end face of an empty tube and one of Sleeve plate of the coil frame is securely clamped.
  • the delivery tube can be acted upon by a corresponding drive in such a way that the mouth of the delivery tube can be positioned in different operating positions. That is, by means of the drive, the delivery pipe is first positioned in a first operating position, in which the mouth of the delivery pipe is in the region of the intake of the work-own, suction-air-sucked suction nozzle. Such positioning ensures a safe transfer of supplied via the delivery tube auxiliary thread to the suction nozzle, since the beginning of the auxiliary thread is immediately sucked into the suction nozzle and pneumatically fixed by this.
  • the delivery tube is then transferred to a second operating position, in which the auxiliary thread, for example by a thread laying device, is displaceable into the region of the coil frame. Subsequently, the delivery tube is transferred by the drive back to the first operating position, in which the now again free suction nozzle then picks up the auxiliary thread again.
  • the mouth of the Delivery pipe as set forth in claim 11, by the drive, for example, a stepper motor, on a circular arc around 360 ° displaced.
  • the drive for example, a stepper motor
  • a linear displacement of the delivery tube instead of a pivot drive.
  • a drive arrangement is provided, which shifts the delivery tube on a linear guide between a first and a second operating position (Anspr.12).
  • a stepping motor is preferably provided as the drive.
  • a precise positioning of the mouth of the delivery tube in any desired position is possible in a simple manner, without a large additional control effort is necessary.
  • the use of a commercially available stepping motor also has the advantage that such mass-produced components are relatively inexpensive and mature.
  • a device designed as a loop puller grasps the auxiliary thread stretched between the delivery tube and the work station's own piecing element and places it, for example for the thread laying device, ready so that it can easily transfer the auxiliary thread to the bobbin frame of the winding device (claim 13).
  • FIG. 1 one half of a per se known open-end spinning machine is indicated and marked with 1.
  • Such spinning machines have a plurality of jobs 2, which are each equipped with a spinning device 3 and a winding device 4.
  • the sliver 5 presented in sliver cans 6 is spun into threads 7, which are wound on the winding devices 4 to cheeses 8.
  • the winding devices 4 are each equipped with a creel 9 for rotatably supporting an empty tube 10 or a cheese 8 and a winding drum 11 for driving the cheese.
  • the jobs 2 each have a Fadenchangier worn 18, a job own Suction nozzle 14 and a workstation own Anspinnorgan 20th That is, the jobs 2 are equipped so that they Can break thread breaks automatically.
  • the open-end spinning machine 1 also has a Spulent transport device 12 for disposal of the on the Winders 4 finished cheeses 8 on.
  • a service unit 16 On or on the spinning machine 1, on a guide rail 13 and a support rail 15 movable, a service unit 16 is arranged.
  • the drive of this service unit 16 consists of rollers 17 and a support wheel 19.
  • the supply of the service unit 16 with electrical energy is preferably carried out via a sliding contact device or a drag chain.
  • Such service units 16 constantly patrol along the open-end spinning machine 1 and engage automatically when a need for action arises at one of the workstations 2. Such a need for action exists, for example, if at one of the workstations 2 a full cross-wound bobbin has to be exchanged for a new empty tube and then re-spun again.
  • the service unit 16 has for this purpose, as is known, over numerous handling devices, the one enable proper cheese / empty tube change. Of these numerous handling devices are in the Drawings, for the sake of clarity, only the so-called thread supply tube 22 with its connected Auxiliary thread supply device 21 and the Yarn laying device 23 shown.
  • the delivery pipe 22 is rotatably mounted in an intermediate wall of the service unit 16, for example about a pivot axis 50, and can be controlled by a stepping motor 38.
  • the auxiliary thread supply device 21 is connected in this case via a rotary feedthrough, which provides an auxiliary thread 24.
  • the auxiliary yarn supply device 21 usually works both mechanically and pneumatically. That is, in the region of a supply spool 52, a mechanical delivery mechanism 51 is arranged, which withdraws the auxiliary thread 24 from the supply spool 52.
  • the conveying of the auxiliary thread 24 preferably takes place pneumatically.
  • the auxiliary yarn supply device 21 has an injector nozzle 53 for this purpose.
  • a thread cutting device 29 is also installed, which cuts off the auxiliary thread 24 after its final transfer to the suction nozzle 14.
  • rotatable mounting of the delivery pipe 22 is also a linear sliding storage of the delivery pipe or a stationary Arrangement of the delivery pipe 22 possible.
  • FIG. 3 shows, for example, an auxiliary thread delivery device 21 with a linearly displaceably mounted delivery tube 22.
  • the mouth 25 of the delivery tube is defined for example in a carriage 55 which is displaceable by means of a belt drive along a linear guide 56.
  • the belt drive consists of a toothed belt 57 which is fixed to the carriage 55, and two respective end of the guide 56 arranged deflection wheels 58th One of the deflection wheels 58 is connected to a drive 59 which can be controlled in a defined manner.
  • the construction described above makes it possible to position the mouth 25 of the delivery pipe 22 either in an operating position I in which the workstation's own suction nozzle 14 can take over the auxiliary yarn 14 from the delivery pipe 22, or to move the mouth 25 into the operating position II.
  • the auxiliary thread 24 stretched between the work station's own piecing element 20 and the mouth 25 of the delivery tube 22 can be grasped by the thread laying device 23 and moved into the area of the winding device 4.
  • FIGS. 4a and 4b show a service unit 16 with a stationary delivery pipe 22.
  • the service unit 16 has in this case an additional loop puller 60, which can be pivoted from the rest position shown in Fig. 4a in the direction indicated in Fig. 4b-operating position.
  • the loop puller 60 takes the between the work-own Anspinnorgan 20 and the mouth 25 of the Delivery pipe 22 tensioned auxiliary thread 24 so with upward, that he then, as is known, from the thread laying device 23 detected and moved to the area of the winding device 4 can be.
  • the thread laying device 23 consists essentially of a support arm 39, which is also mounted in an intermediate wall of the service unit 16.
  • the support arm 39 which has a head end element 40 at its end, is mounted with limited pivoting relative to its pivot axis 42 as well as axially displaceable.
  • the radial pivoting of the support arm 39 between a detent position R and a working position A takes place via a thrust piston gear 41, while a thrust piston gear 43 is provided for the axial displacement of the support arm 39.
  • the head member 40 is connected via a pivot axis 44 to the support arm 39 and can be swung laterally via a thrust piston 45.
  • a Hülsentelleröffner 32 and a spring-loaded thread guide device 34 is set.
  • a Fadenanlegerkopf 47 is articulated movably on the head element 40 via a pivot axis 46, the various functional elements, such as thread cutting device 31, Guide pulley 33 and yarn brake 35 carries.
  • the yarn feeder head 47 is pivotable by means of a thrust piston 48 and can be pivoted as needed from the position shown in Fig.2d in the position shown in Figure 2e.
  • a thrust piston 49 For actuating the thread cutting device 31 and the Yarn brake 35 is a thrust piston 49 is provided, the the aforementioned functional elements via a linkage 54 controls.
  • the actuation of the area in the thread brake 35th arranged, spring-loaded thread guide device 34th takes place when pivoting the thread applying head 47 automatically. That is, when pivoting the thread applying head 47 is the Federkraftbeetzte thread guide device 34 via a corresponding stop automatically in their working position relocated.
  • FIGS. 7 and 8 show a work station own piecing element 20.
  • the Anspinnorgan 20, which takes over the laid by the suction nozzle 14 auxiliary thread 24 prepared and ready for the Wiederanspinnprozeß, consists essentially of a preferably produced by injection or die casting base body 141, which has inter alia a cylindrical projection 142 for receiving a spring element 137 , In the region of this cylindrical projection 142 is also the pivot axis 135 of the Anspinnorgans 20th At the end, the main body 141 also has a connection bore for fastening a stop 136, while a receiving housing 143 for a thread-dissolving tube 132 is arranged on the opposite side of the main body 141.
  • the receiving housing 143 for the Fadenauflöserschreibchen 132 has a stepped through hole 144, to which both a vacuum port 129 and a compressed air connection 138 are connected. In the area of the compressed air connection 138, a quick coupling device 155 can also be arranged.
  • Thread Disintegrating Tube 132 has, as known, one or more several tangential holes 145, over the one Compressed air flow to the thread end of the im Thread Disintegrating Tube 132 pneumatically fixed auxiliary thread 24 given while the thread rotation can be resolved.
  • the thread-dissolving tube 132 is fixed in the through-bore 144 via an O-ring seal 146 or the like, as well as a screw-on cover plate 147.
  • a seal 148 is provided on the opposite, adjacent to the open-end spinning device 2 side of the through hole 144.
  • the piecing element 20 furthermore has a pneumatically actuatable thread cutting device 133. That is, to a controllable via a workstation computer 125 thrust piston gear 149 is a pair of scissors 150 or the like. Connected.
  • the service unit 16 is ordered to the relevant job 2 and there automatically changes the full cheese 8 against a new empty tube 10. That is, after the ejection of the full cheese 8 (not shown) handling devices of the service unit 16, a new empty tube 10 is first placed between the sleeve plate 30 of the coil frame 9 of the relevant job 2 by appropriate.
  • the workstation's own suction nozzle 14 is pivoted into the thread receiving position FA.
  • the delivery tube 22 of the service unit 16 is rotated about the pivot axis 50 by means of the stepper motor 38 so that the mouth 25 of the delivery tube 22 is positioned in front of the suction port 27 of the suction nozzle 14. That is, the delivery pipe 22 assumes its operating position I.
  • the exiting Auxiliary thread 24 is immediately, as indicated in Figure 2a, by the vacuum-loaded suction nozzle 14 of the job 2 sucked.
  • the thread laying device 23 is at this time, as indicated, still positioned in its rest position R.
  • the delivery pipe 22 is pivoted into the second, upper operating position II ( Figure 2b).
  • additional thread 24 is replenished by the auxiliary thread supply device 21.
  • the auxiliary thread is pulled over the guide roller 33 of the thread laying device 23, which is still positioned in its rest position R at this time.
  • the thrust piston gear 41 is driven so that the thread laying device 23 pivots forward in its working position A.
  • the auxiliary thread 24 is thereby threaded into the arranged on the thread laying device 23 thread cutting device 31 and the thread brake 35.
  • the thread end of the auxiliary thread 24 is prepared for the subsequent piecing process and held the auxiliary thread for the piecing process. Subsequently, the now free suction nozzle pivots back up, as indicated in Fig. 2c.
  • the delivery tube 22 continues to pivot and reached again the operating position I.
  • the auxiliary thread 24 in a thread withdrawal device 28 is inserted, either as in Embodiment illustrated as a mechanical working Roll delivery unit may be formed or pneumatic is working. In this case, for example, a Injector supply device provided.
  • the auxiliary thread 24 is now separated by a thread cutting device 29 disposed within the auxiliary yarn feeding device 21 and exits due to the prevailing blow flow from the mouth 25 of the delivery tube 22, where he immediately due to the upcoming in the suction port 27 of the suction nozzle 14 negative pressure in the suction nozzle 14 is sucked. That is, the auxiliary thread 24 is now held between the Anspinnorganen 20 of the job 2 and the workstation's own suction nozzle 14 and runs through the thread laying device 23, the thread withdrawal device 54 of the job 2 and the thread withdrawal device 28 of the service unit 16th
  • the thread laying device 23 is acted upon axially by the thrust piston 43.
  • the yarn laying device 23 positions itself with a (not shown) stop element on the housing of the winding device 4 and tilts with the voltage applied to one of the sleeve plate 30 of the creel 9 9 Hülsentelleröffner this sleeve plate 30 to the outside.
  • a wedge-shaped gap is formed, into which a string chord 37 of the auxiliary thread 24 is subsequently inserted by a pivoting movement of the yarn feeder head 47.
  • the new filament 7 is cut by the thread cutting device 31 just above the empty tube 10 and simultaneously clamped by the thread brake 35, which is positioned below the empty tube 10.
  • the trimmed, still on the thread withdrawal device 28 running thread piece is disposed of via the suction nozzle 14.
  • the thread cutting device 31 and the yarn brake 35 are opened.
  • the filament 7 is positioned in front of the so-called Fadenreserverille the empty tube 10.
  • the winding drum 11 is started and accelerates the over-friction resting empty tube 10 to winding speed.
  • the yarn brake 35 is closed. That is, the remaining turns of the thread reserve 26 are wound with increased thread tension and offset by a few millimeters outwards, so that the thread start is wound over and thus securely fixed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP02012278A 2001-08-09 2002-06-05 Verfahren und Vorrichtung zum Wiederanspinnen einer Offenend-Spinnmaschine nach Spulenwechsel Expired - Lifetime EP1284313B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10139078 2001-08-09
DE10139078A DE10139078A1 (de) 2001-08-09 2001-08-09 Verfahren und Vorrichtung zum Wiederanspinnen einer Offenend-Spinnmaschine

Publications (2)

Publication Number Publication Date
EP1284313A1 EP1284313A1 (de) 2003-02-19
EP1284313B1 true EP1284313B1 (de) 2005-05-04

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EP02012278A Expired - Lifetime EP1284313B1 (de) 2001-08-09 2002-06-05 Verfahren und Vorrichtung zum Wiederanspinnen einer Offenend-Spinnmaschine nach Spulenwechsel

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Country Link
US (1) US6865874B2 (zh)
EP (1) EP1284313B1 (zh)
CN (1) CN100402719C (zh)
CZ (1) CZ303930B6 (zh)
DE (2) DE10139078A1 (zh)

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CN108588916B (zh) * 2018-05-16 2021-04-27 东华大学 转杯纺纱机负压气口吸纱操作装置
EP3650381A1 (en) * 2018-11-08 2020-05-13 Lakshmi Machine Works Ltd. Broken yarn picking arrangement for ring spinning machine
CN109868530B (zh) * 2019-03-29 2023-11-03 安徽日发纺织机械有限公司 一种转杯纺纱机空管预留尾纱机构
DE102019120980A1 (de) 2019-08-02 2021-02-04 Maschinenfabrik Rieter Ag Spinnmaschine mit einer Vielzahl nebeneinander angeordneter Arbeitsstellen und einer verfahrbaren Wartungseinrichtung mit einem pneumatischen Arbeitsorgan sowie Verfahren zum Versorgen des pneumatischen Arbeitsorgans mit Unterdruck
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CN112125060A (zh) * 2020-09-28 2020-12-25 安徽日发纺织机械有限公司 一种带有单锭吸嘴的捻接小车及其捻接方法
CN113604919B (zh) * 2021-04-14 2022-12-06 东华大学 一种用于环锭纺细纱自动接头的备用纱绕纱装置
CN113122976B (zh) * 2021-04-28 2023-03-31 日照品特裕华纺织科技有限公司 一种环锭纺纱机纱线搭接系统和方法及纱线的处理工具
CN115074880A (zh) * 2022-05-12 2022-09-20 东华大学 一种环锭纺细纱近原位自动接头方法及装置

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Also Published As

Publication number Publication date
US20030029154A1 (en) 2003-02-13
DE10139078A1 (de) 2003-02-20
CZ303930B6 (cs) 2013-07-03
EP1284313A1 (de) 2003-02-19
CN100402719C (zh) 2008-07-16
US6865874B2 (en) 2005-03-15
DE50202980D1 (de) 2005-06-09
CZ20022314A3 (cs) 2003-03-12
CN1405377A (zh) 2003-03-26

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