EP0581077A1 - Vorrichtung zum Entfernen von Endwindungen, insbesondere Fusswindungen und/oder Fadenenden im Bereich des Hülsenfusses von Spinnkopsen - Google Patents

Vorrichtung zum Entfernen von Endwindungen, insbesondere Fusswindungen und/oder Fadenenden im Bereich des Hülsenfusses von Spinnkopsen Download PDF

Info

Publication number
EP0581077A1
EP0581077A1 EP93110904A EP93110904A EP0581077A1 EP 0581077 A1 EP0581077 A1 EP 0581077A1 EP 93110904 A EP93110904 A EP 93110904A EP 93110904 A EP93110904 A EP 93110904A EP 0581077 A1 EP0581077 A1 EP 0581077A1
Authority
EP
European Patent Office
Prior art keywords
roller
thread
suction
cop
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Withdrawn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
EP93110904A
Other languages
German (de)
English (en)
French (fr)
Inventor
Wolfgang Irmen
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
W Schlafhorst AG and Co
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 W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0581077A1 publication Critical patent/EP0581077A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • B65H67/086—Preparing supply packages
    • 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 invention relates to a device for removing end windings, in particular foot windings and / or thread ends in the region of the sleeve foot, with the features of the preamble of claim 1.
  • CH-PS 442 101 and DE-OS 33 08 172 describe devices in which the cop is placed directly above a suction pipe with its cop base. This thread end should be grasped by the suction flow and can be pulled off the cop base. In order to avoid that a thread end that is too long hangs from the bobbin and leads to drag threads during further transport to the next preparation station, it is provided that the thread end is cut off immediately before further transport.
  • these devices are only suitable for releasing a thread end which is easily exposed and, above all, is not twisted with the piecing thread.
  • each suction opening of the suction cutting drum at least largely coincides with the thread end suction opening of the suction housing and in which the thread end can be effectively sucked in is extremely short.
  • the cop is simultaneously rotated in the thread unwinding direction, there is a danger that the thread end will pass the suction opening of the suction housing several times without it being able to be detected. If the end of the thread has been gripped and then tears, if the unwinding speed and the pulling-off speed of the thread clamped between the suction cutting drum and the suction housing differ, the renewed grasping of the end of the thread can in turn be delayed accordingly.
  • the invention takes over the knowledge that end windings, which can lie firmly on top of one another and have twists with other thread parts, cannot be removed pneumatically alone. While the known devices, which used additional mechanical aids, were associated with a significant reduction in the effectiveness of the pneumatic means, according to the present invention both means are fully effective in the entire preparation phase. In addition, the rapid rotation speed of the roller according to the present invention generates a strong additional suction flow. By defibrating the thread, a constant high tensile force is exerted on the detected thread end without, however, as with the known clamping, giving the thread a predetermined pull-off speed. As a result, the thread take-off speed is determined exclusively by the release of the thread by the bobbin.
  • the continuously acting intensive suction flow ensures a quick and safe detection of the thread start as soon as it passes the suction opening for the first time. Even after the thread tears outside the suction opening, the continuous suction air flow catches it again very quickly and it can be drawn off further.
  • the device according to the invention has the additional advantage that the thread, which is kept under constant tension, breaks off when it passes into the steep rear windings.
  • the thread end remaining on the cop shoots upward due to the tension present during the tearing and the steep winding direction and can be detected very quickly and easily by a suction slot arranged in a subsequent station.
  • the device according to the invention can, as already indicated, also be operated without a vacuum source, since the roller with its non-slip surface and high circumferential speed already generates a sufficient suction flow, it is advantageous to additionally connect a vacuum source, in particular for suctioning off the detached fibers.
  • the suction opening is designed such that a vertical center plane of this suction opening also includes the longitudinal axis of the spinning cop to be prepared.
  • the spinning cop in the case in which fifteen or more turns of the foot are to be detached from the sleeve base of the spinning cop, it can prove to be advantageous to pull off the foot turns in the direction of the longitudinal axis of the spinning cop to avoid unwinding of each individual turn.
  • the spinning cop must be removed from a plug-on mandrel, which can be part of a caddy for transporting the spinning bobbins, for example, and positioned over the suction opening.
  • the cop 1 according to FIGS. 1 and 2 is attached with its cop sleeve 2 or its sleeve base 2 'to the arbor 7 of a caddy 5.
  • This caddy 5 stands on a conveyor belt 8, by means of which the caddy 5 can be transported along a transport path by means of frictional engagement.
  • the guide rails 9 and 10 have cutouts 9 'and 10' in order to enable the drive roller 11 and the further rollers 13 to pass through on the opposite side.
  • the drive roller 11 or the drive rollers 13 can be changed in position transversely to the transport direction of the conveyor belt 8.
  • a thread end which may even be twisted with the so-called piecing thread, is sucked through the suction opening 17 and reaches the surface of the roller 15.
  • the gripping surface and the high peripheral speed make the detected thread ends in Individual fibers dissolved, but a high tensile force is still exerted on the thread itself. In contrast to the prior art, this does not require the thread to be pinched, for example in a nip. This ensures that the tensile force remains constant even after the end of the thread has been mechanically gripped while maintaining the full suction flow. As a result, the new end of the thread can be gripped again very quickly even when the thread is torn off.
  • the device shown can be used regardless of the winding direction of the thread on the spinning cop 1. It is only necessary to ensure that the motor 12 drives the drive roller 11 in the direction that enables the spinning head 1 to rotate in the unwinding direction of the thread.
  • the design and arrangement of the suction opening 17 ensures the same functionality regardless of the direction of rotation of the spinning cop 1 or the winding direction of the thread.
  • a suction pipe 19 is connected to the suction housing 14 and has a connection to a vacuum source with an interposed filter.
  • An air shutoff element is advantageously arranged between the vacuum source and the suction housing 14. As a result, the connection of the suction housing 14 to the suction air source can be limited to the period in which a cop is processed.
  • the roller 15 is connected directly to a motor 16 which runs at a speed of 5,000 rpm.
  • the peripheral speed of the roller 15 achieved in this way is approximately 1,000 m / min, the diameter of which is 60 mm.
  • This is an opening roller, as shown in FIG. 4, and is used to open a fiber sliver in rotor spinning machines.
  • the roller 24 is arranged horizontally with its axis of rotation. This illustration is intended to clarify that the device according to the invention is not restricted to a specific position of this roller.
  • a trailing thread loosener 29 is indicated in FIG. 3, which can additionally be provided in this preparation station.
  • a trailing thread loosener 29 is indicated in FIG. 3, which can additionally be provided in this preparation station.
  • the opposite direction of rotation of cop 1 must be selected.
  • an air guiding edge 26 ensures that the tangential air flows which arise on the circumference of the roller 24 are passed on in the suction tube 23.
  • the shaft 30 on which the armature of the motor 34 is seated can also be seen on the roller 24.
  • the section of a clothing wire 32 shown enlarged in FIG. 4 clearly shows tooth flanks 33a and tooth back 33b.
  • the tooth flanks are arranged at the front in order to increase the pulling force on the thread or the fibers in the direction of rotation of the roller 24.
  • a larger amount of air is entrained in this way, thereby increasing the suction flow achieved solely by the roller. Since the clothing wire 32 is inserted helically in a bed on the roller 30, it is ensured that the thread does not enter an alley between the clothing wires 30, but is rather quickly gripped by the tooth flanks 33a.
  • a needle coating as is known, for example, from a card drum.
  • the decisive factor in any case is that the covering has enough grip to defibrate the thread and, if possible, also to generate an air flow which exerts a sufficient suction force on the thread to be detached from the cop.
  • a lifting mechanism 41 has two carriers 49 arranged one behind the other in FIG. 5, the front carrier not being visible due to the sectional illustration. Both carriers can be connected to one another via a bridge 49a shown in section.
  • the gripper 42 executes a pure lifting movement which inevitably results from the vertical course of the links 45 and 46. If the guide pin 43 then reaches the upper end of the link 46, this guide pin 43 is at the same time the fulcrum for the gripper 42 in the subsequent movement phase. The guide pin 44 then slides in a partial circle section of the link 45 to its upper end. With this end position, the spinning cop 1 assumes the position 1 'in which it is arranged in the suction opening 52 of a suction housing 57. The suction opening 52 has an additional lateral opening 52 'for pivoting in.
  • the gripper 42 is not shown in further detail here, since any known gripper with an arbitrarily selectable clamping mechanism can be used.
  • a roller 53 is designed corresponding to the rollers 15 and 24, respectively. Likewise, the design of the suction housing 57 with channel 55 and suction pipe 56 corresponds to the design in FIGS. 1 and 2. The roller 53 is also driven here directly by a motor 54.
  • a control unit 51 is indicated here for coordinating the stopping of a caddy 5, the removal of a spinning cop 1 and positioning over the suction opening 52 and, if appropriate, the actuation of an air flap for closing the suction tube.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP93110904A 1992-07-31 1993-07-08 Vorrichtung zum Entfernen von Endwindungen, insbesondere Fusswindungen und/oder Fadenenden im Bereich des Hülsenfusses von Spinnkopsen Withdrawn EP0581077A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924225349 DE4225349A1 (de) 1992-07-31 1992-07-31 Vorrichtung zum Entfernen von Endwindungen, insbesondere Fußwindungen und/oder Fadenenden im Bereich des Hülsenfußes von Spinnkopsen
DE4225349 1992-07-31

Publications (1)

Publication Number Publication Date
EP0581077A1 true EP0581077A1 (de) 1994-02-02

Family

ID=6464567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110904A Withdrawn EP0581077A1 (de) 1992-07-31 1993-07-08 Vorrichtung zum Entfernen von Endwindungen, insbesondere Fusswindungen und/oder Fadenenden im Bereich des Hülsenfusses von Spinnkopsen

Country Status (5)

Country Link
EP (1) EP0581077A1 (zh)
JP (1) JPH06166470A (zh)
CN (1) CN1087316A (zh)
CZ (1) CZ133893A3 (zh)
DE (1) DE4225349A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018100464A1 (en) * 2016-11-30 2018-06-07 Maschinenfabrik Rieter Ag Method for detecting the yarn end on a bobbin in a textile machine producing or processing yarn and a device for performing the method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107381232A (zh) * 2017-08-31 2017-11-24 山东华兴纺织集团有限公司 纱尾找头装置及自络找头机
CN108423481A (zh) * 2018-02-12 2018-08-21 铜陵松宝智能装备股份有限公司 一种纱管包脚纱线退绕装置及退绕方法
CN108439071A (zh) * 2018-02-12 2018-08-24 铜陵松宝智能装备股份有限公司 一种纱管生头装置及生头方法
CN108423493A (zh) * 2018-02-12 2018-08-21 铜陵松宝智能装备股份有限公司 一种纱管线头捕捉装置及捕捉方法
CN108408490A (zh) * 2018-02-12 2018-08-17 铜陵松宝智能装备股份有限公司 一种纱管纱线生头设备及方法
CN108946314A (zh) * 2018-08-14 2018-12-07 杭州锐冠科技有限公司 一种纱尾剪切装置
CN111731948A (zh) * 2020-06-28 2020-10-02 浙江宝耀智能科技有限公司 一种自络筒自动找头插纱生产工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406920A (en) * 1966-02-17 1968-10-22 Reiners Walter Device for releasing the starting end of a coil-wound thread held fast by a reserve winding
DE1560571A1 (de) * 1965-12-02 1970-10-29 Reiners Walter Dr Ing Vorrichtung zum pneumatischen Entfernen der Ober- oder Unterwindung von Ablaufkopsen
DE3512403A1 (de) * 1984-04-05 1985-10-17 Murata Kikai K.K., Kyoto Fadenendebehandlungseinrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008640A1 (de) * 1979-05-16 1980-11-20 Schweiter Ag Maschf Fadenabzugvorrichtung fuer textilspulen
JPS62255369A (ja) * 1986-04-16 1987-11-07 Murata Mach Ltd 糸端の口出し装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1560571A1 (de) * 1965-12-02 1970-10-29 Reiners Walter Dr Ing Vorrichtung zum pneumatischen Entfernen der Ober- oder Unterwindung von Ablaufkopsen
US3406920A (en) * 1966-02-17 1968-10-22 Reiners Walter Device for releasing the starting end of a coil-wound thread held fast by a reserve winding
DE3512403A1 (de) * 1984-04-05 1985-10-17 Murata Kikai K.K., Kyoto Fadenendebehandlungseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018100464A1 (en) * 2016-11-30 2018-06-07 Maschinenfabrik Rieter Ag Method for detecting the yarn end on a bobbin in a textile machine producing or processing yarn and a device for performing the method

Also Published As

Publication number Publication date
DE4225349A1 (de) 1994-02-03
CZ133893A3 (en) 1994-03-16
JPH06166470A (ja) 1994-06-14
CN1087316A (zh) 1994-06-01

Similar Documents

Publication Publication Date Title
EP2573228B1 (de) Spinnmaschine sowie Verfahren zum Abführen eines Endabschnitts eines Garns an einer Spinnmaschine vor einem anschließenden Anspinnvorgang
EP0528884B1 (de) Verfahren und vorrichtung zum automatischen anlegen eines faserbandes an einer textilmaschine
EP3144257B1 (de) Verfahren zum betreiben einer arbeitsstelle und arbeitsstelle
DE3808957C2 (zh)
DE2540703A1 (de) Verfahren und vorrichtung zum beseitigen einer unregelmaessigkeit in einem auf die spule einer offen-end-spinnvorrichtung aufzuwickelnden faden
EP0404045B1 (de) Verfahren zum Spulenwechsel der Aufwickelspulen einer Textilmaschine sowie eine Textilmaschine
DE10124832A1 (de) Fadenspleissvorrichtung
WO1987003310A1 (en) Process and device for rethreading a spinning device provided with a pneumatic twisting element
DE3123494C2 (de) Verfahren und Vorrichtung zum Aufwinden eines neu angesponnenen Fadens auf eine in eine Spulvorrichtung eingelegte Leerhülse
DE2533655A1 (de) Verfahren und vorrichtung zum beginnen, unterbrechen und anhalten des spinnvorganges eines mit einem band umwundenen gesponnenen garns
DE2753349C2 (de) Verfahren und Vorrichtung zum Anspinnen eines Umwindegarnes
EP3153612A1 (de) Verfahren zum vorbereiten eines garnendes zum anspinnen an einer rotorspinnvorrichtung einer rotorspinnmaschine sowie rotorspinnmaschine
DE3338833A1 (de) Verfahren und vorrichtung zum anspinnen eines garnes an einem spinnaggregat einer oe-friktions-spinnmaschine
DE2939644A1 (de) Verfahren und vorrichtung zur beseitigung einer unregelmaessigkeit in einem faden
DE3411577C2 (zh)
DE19539936A1 (de) Spulenfadenwickelvorrichtung
DE68925017T2 (de) Automatisches Ansetzen eines Faserbandes in einer Textilmaschine.
EP0162367B2 (de) Verfahren und Vorrichtung zum Vorbereiten eines abgelängten Fadenendes zum Wiederanspinnen einer Offenend-Spinnvorichtung
EP0581077A1 (de) Vorrichtung zum Entfernen von Endwindungen, insbesondere Fusswindungen und/oder Fadenenden im Bereich des Hülsenfusses von Spinnkopsen
DE2361978B2 (de) Verfahren und Vorrichtung zum Anspinnen einer Offenendspinnmaschine
DE10201533B4 (de) Offenend-Rotorspinnmaschine
DE3315034A1 (de) Verfahren und vorrichtung zum anspinnen an einem spinnaggregat einer oe-friktionsspinnmaschine
DE3607206A1 (de) Verfahren und vorrichtung zum herstellen einer spleissverbindung
DE2038432B2 (de) Spulenwechselvorrichtung fuer eine offen-end-spinnvorrichtung
DE4418743A1 (de) Verfahren zum pneumatischen Aufnehmen des Endes eines auf einer Spule aufgewickelten Fadens

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE IT LI

17P Request for examination filed

Effective date: 19940506

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960201