EP0931864B1 - Verfahren und Vorrichtung zum Einleiten des Umwickelvorganges beim Zentrifugenspinnen nach einem Fadenbruch - Google Patents

Verfahren und Vorrichtung zum Einleiten des Umwickelvorganges beim Zentrifugenspinnen nach einem Fadenbruch Download PDF

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Publication number
EP0931864B1
EP0931864B1 EP99100757A EP99100757A EP0931864B1 EP 0931864 B1 EP0931864 B1 EP 0931864B1 EP 99100757 A EP99100757 A EP 99100757A EP 99100757 A EP99100757 A EP 99100757A EP 0931864 B1 EP0931864 B1 EP 0931864B1
Authority
EP
European Patent Office
Prior art keywords
yarn
thread
spinning
yarn release
release means
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
EP99100757A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0931864A2 (de
EP0931864A3 (de
Inventor
Karl Koltze
Peter Voidel
Berhard Dr.-Ing. Schwabe
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
Priority claimed from DE19802656A external-priority patent/DE19802656A1/de
Priority claimed from DE19849191A external-priority patent/DE19849191A1/de
Application filed by W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0931864A2 publication Critical patent/EP0931864A2/de
Publication of EP0931864A3 publication Critical patent/EP0931864A3/de
Application granted granted Critical
Publication of EP0931864B1 publication Critical patent/EP0931864B1/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
    • D01H15/004—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing for centrifugal spinning machines
    • 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
    • D01H1/08—Spinning or twisting machines in which the product is wound-up continuously cup, pot or disc type, in which annular masses of yarn are formed by centrifugal action

Definitions

  • the invention relates to a method for initiating the Wrapping process in single-stage centrifuge spinning a thread break according to the preamble of claim 1 or a device for performing this Method according to claim 6.
  • a special sleeve is described in the generic DE 195 23 937 A1, which has a radially projecting at one of its longitudinal ends, has plate-like extension. With this plate-like After a thread break, the thread end should extend usually as a piece of tendon thread on the inner surface of the Create spider cake, recorded and to initiate the Wrapping process can be used.
  • Devices for initiating the wrapping process after Thread breaks are related to Centrifuge spinning devices also by CH-PS 348 346 and the DE-PS 842 916 known.
  • the Swiss patent specification describes, for example broom-like tool that is manually inserted into the rotating spinning centrifuge introduced and with its thin Touch wires are placed on the inner layer of the spider cake. By placing the feeler wires on the spinning cake, the Wrapping process triggered.
  • DE-PS 842 916 describes a device that one in the Spinning centrifuge insertable arm that connects to the inner Thread turns of the spin cake is adjustable.
  • a disadvantage of this device is that the loosening tool, that is to say the arm placed on the spinning cake, is also coiled during the wrapping process.
  • the resulting spinning cop is usually no longer unwindable and therefore represents a committee.
  • the Invention based on the object, a method or to develop a device that the known Wrapping process in centrifugal spinning, especially after a yarn break, improved.
  • this object is achieved by a method as described in claim 1, or by a device according to claim 6.
  • Preferred embodiments of the device are in the Subclaims 7 and 21 described.
  • the method according to the invention has the particular advantage that a winding process can be initiated without any problems even after a yarn break, with neither the yarn deposited as a spinning cake on the centrifuge wall nor the yarn release element being damaged.
  • the thread release element parallel to the inner wall of the Spinning centrifuge inserted into this and in the lower area of the Winding cone is placed on the spin cake.
  • the number of winding layers caused by the Thread guide contour must be raised in order to wrap the To avoid thread loosening element can be minimized.
  • the axial force component acting on the thread releasing element when the wrapping process is initiated is detected by a force transducer and used to generate a signal (Claim 4).
  • the signal is then processed in the central control device of the centrifuge spinning machine or in a control device assigned to the individual centrifuge spinning station in such a way that it can be concluded from the presence of such a signal that the rewinding process has been initiated correctly. This means that if there is no corresponding signal, a new wrapping attempt can be started immediately.
  • the proper completion of the rewinding process will monitored, for example, by the fact that during the Rewinding process on the rewinding sleeve effective torque, as in Claim 5 set out, detected by a torque transducer becomes.
  • the signals from the torque transducer can be found under Based on the known wrap time in the Control device for monitoring a proper Wrapping process can be used.
  • the invention Thread release element via a to the winding cone of Spinnkuchens adjustable cutting edge as well as the cutting edge in Outstanding thread guide contour in the axial direction.
  • the thread guide contour has an inclined thread slide curve over which the lower winding layers of the spin cake so be raised far that the thread release element at Rewinding process cannot be wrapped up.
  • the device according to the invention in Area of the thread release element via a force transducer, the that during the rewinding process when the yarn comes up the thread sliding curve arising axial force component detected and a corresponding signal to the via a signal line Control device passes on. That is, a signal from the am Thread release element arranged force transducer is called Successfully started wrapping process evaluated (Ansp. 7).
  • a torque transducer As described in claim 8, is further in the range of Rewinding sleeve holder installed a torque transducer, the the one that acts on the winding tube during the winding process Torque detected.
  • the torque transducer is also over a signal line connected to the control device, so that about the torque transducer, taking into account the known winding time, the course of the Wrapping process can be monitored.
  • the embodiment of one of the thread-releasing element described in claim 10 offers the possibility of applying the thread-releasing agent relatively gently to the lowest turns of the spin cake. In this way it is prevented, for example, that the thread solvent detects several of the winding layers of the spin cake lying one above the other at the same time, which generally leads to a spinning cop which can no longer be unwound. If the thread solvent is too hard, there is also the danger that tilting moments will be introduced into the rotating spinning centrifuge which will cause the magnetically mounted spinning centrifuge to get out of step, so that there is a risk that the centrifuge body will run against the centrifuge housing.
  • the thread solvent is as in Claim 11 described, pivotally mounted. That is, that Thread solvent can easily be swung in retract the spinning centrifuge and then through Swing out carefully on the lower thread layers of the on the Centrifuge inner wall of deposited spider cake become.
  • the thread solvent is through a force can be pivoted, which makes the thread release elastic, that is, flexible and gentle when necessary.
  • This elastic loading of the thread solvent takes place preferably, as described in claim 13, electrically or pneumatic.
  • the thread-releasing element has, as set out in claim 14, at least one compressed air nozzle which can be controlled in a defined manner.
  • a rear compressed air impact surface on the thread solvent can be acted upon by this compressed air nozzle arranged behind the thread solvent, so that the thread solvent is pivoted out in the direction of the spin cake.
  • the thread solvent is returned to its rest position either via a spring element or via a second compressed air nozzle.
  • the thread solvent is swiveled in or out, depending on which of the two compressed air nozzles is switched on.
  • the compressed air nozzles are controlled, for example, using proven 2/2-way valves.
  • the device is preferably designed so that a defined setting of the pneumatic pressure and thus the force of the thread solvent on the spinning cake is possible in a simple manner. That is, a throttle device is switched on, for example, in the compressed air line that leads to the compressed air nozzle that initiates the swiveling out of the thread solvent.
  • an electrically operating device for example a magnetic coil which can be energized in a defined manner is arranged on the thread releasing element, as set out in claim 16.
  • the thread release means itself is, at least partially, made of a ferromagnetic material, so that by appropriate energization of the magnetic coil arranged as far as possible above or below the pivot axis of the thread release means, the thread release means can be pivoted into its working position.
  • the force with which the Thread solvent is applied to the spin cake defined can be set as described in claim 17.
  • the thread solvent can therefore be gently swung in and the system torque at the winding layers of the spin cake be delicately limited at all times.
  • Thread guiding device ensures that the thread solvent not accidentally with during the wrapping process is wrapped, which lead to an unusable spinning cop would.
  • the wrapping process can be initiated reliably and gently by the defined application of the cutting edge of the thread solvent to the lowest turn position of the spin cake.
  • the cutting edge can have different shapes, for example, as set out in claim 21, acute-angled, rectangular or the like.
  • FIG. 1 schematically shows a centrifuge spinning device, generally designated by the reference number 1, of a centrifuge spinning machine (not shown in more detail). Centrifuge spinning devices of this type are known in principle and are described in relatively detail, for example, in DE 196 37 270 A1.
  • Such centrifuge spinning devices usually have one rotatably mounted in a spinning housing 2 Spinning centrifuge 3, which is stored in bearings 4.
  • Spinning centrifuge 3 which is stored in bearings 4.
  • the bearings 4 are there, as in the DE 196 37 270 A1 described, for example as Permanent magnetic bearing designed.
  • the entire spinning housing 2 is also one in which Figures only indicated schematically, drive 6 in vertical Movable direction.
  • the centrifuge spinning device 1 also has a in the spinning centrifuge 3 insertable thread guide tube 7, the can be moved oscillatingly via a drive 8.
  • On the Thread guide tube 7 is in a winding tube holder 21 Rewinding sleeve 9 set.
  • the winding tube holder 21 has thereby via a locking device 10 which the winding tube during the normal spinning process in a rest position 11 fixed and in the wrapping process, as indicated in Figure 1, in a wrapping position 12 defines.
  • centrifuge spinning devices 1 mostly have a thread break sensor, for example an optoelectronic sensor device.
  • the thread break monitoring is carried out by means of an optoelectronic sensor device 13, 13 'which monitors the rotating yarn leg during the spinning process.
  • Thread release element 14 To initiate the wrapping process after a yarn break also a via a drive 23 parallel to Spinnzentrifugeninnenwandung 26 relocatable Thread release element 14 is provided.
  • the thread release element 14 has an adjustable to the winding cone 32 of the spin cake 15 Cutting edge 16 and a cutting edge 16 in the axial direction overall thread guide contour 17.
  • the thread releasing element 14 can also be used with a Force transducer 18 for receiving an axial force component 19 be equipped.
  • a comparable sensor device 20 can also be used in the area the winding tube receptacle 21 must be installed. This as Torque sensor trained sensor device 20 detects the effective on the rewinding sleeve 9 during the rewinding process Torque 22.
  • e.g. 3 shown embodiment has the thread release element 14, which in FIGS. 4 and 5 or 6 shown on a larger scale is, a base body 40 on which by means of Bolt 41 or the like a sleeve-like Thread guiding device 42 is fixed.
  • This Thread guiding device 42 has an end face Thread guide contour 43 and in the area of its outer cylinder wall 44 a slot-like opening 45 for a pivoted Thread solvent 46.
  • a guide block 50 slotted in the upper part is fixed on the sleeve-like thread guide device 42 from the inside via at least one screw bolt 49.
  • the pivotable thread release means 46 is mounted in the guide slot 51 of the guide block 50 with almost no play.
  • the thread release means 46 can be rotated to a limited extent about a bolt 47 and has a cutting edge 48 on the front which can have different cross-sectional shapes.
  • the cutting edge 48 is preferably rectangular, as indicated in FIG. 6.
  • the maximum pivoting path of the thread release means 46 can be set in a defined manner via a stop 52, which can be adjusted via screw bolts 53, 54.
  • the stop 52 corresponds to a rear contact surface 55 of the thread release means 46.
  • the thread release means 46 pivotably mounted about a bolt 47 can be acted upon elastically.
  • the thread release means 46 can, for example, either be pneumatically actuated, as indicated in FIG. 4, or, as shown in FIG. 5, pivoted electrically.
  • the pneumatic pivoting device 61 shown in FIG. 4 comprises two compressed air nozzles 56, 57 which are connected to a vacuum source 64 via pneumatic lines 62, 63.
  • a 2/2-way valve 65 and preferably a throttle device 66 are connected into the pneumatic line 62, while the pneumatic line 63 has only a 2/2-way valve 67.
  • the electrical pivoting device 35 shown in FIG. 5 comprises two electromagnetic coils 36, 37 which can be energized in a defined manner and which are connected to a current source (not shown) via power lines 38, 38 ', 38'',38''.
  • controllable electrical switches 60 are switched into the power lines.
  • at least the power lines 38 ′′ also has a potentiometer 39, which enables a defined setting of the current intensity acting on the magnetic coil 37 and thus an exact setting of the pressing force of the thread release means 46 against the lowest turn position of the spin cake 25.
  • a sliver drafting device for example a drafting device 24, arranged above the spinning centrifuge 3, is fed a sliver from a spinning can (not shown) or, as indicated in FIG. 3, a roving 27 from a flyer spool (also not shown).
  • the thread 25 created under the action of the revolving spinning centrifuge 3 reaches the spinning centrifuge 3 via the thread guide tube 7 and is deposited as a spinning cake 15 on the centrifuge inner wall 26 of the spinning centrifuge 3.
  • the thread guide tube 7 is moved in an oscillating manner via the drive 8.
  • the spinning housing 2 is continuously raised via the drive 6.
  • the thread 25 is thereby deposited in the manner of a so-called cop winding on the centrifuge inner wall 26 of the spinning centrifuge 3.
  • the rotating yarn leg emerging from the thread guide mouth is continuously monitored during the formation of the spin cake 15 by a sensor device shown in FIG.
  • the preferably optoelectronic sensor device is connected to a control device 30 via a signal line.
  • Control device 30 In the event of a thread break caused by the sensor device of the missing thread leg immediately recorded and sent to the Control device 30 is reported, which activates Control device 30 immediately a (not shown) Match stop device in the area of the drafting system 24, so that a further delivery of roving 27 is interrupted.
  • the control device 30 also activates via the Signal line 34 a locking device 10 on the Winding sleeve holder 21, which the winding sleeve 9 from its Rest position 11 can slide into its rewinding position 12.
  • the thread release element 14 is then inserted into the spinning centrifuge 3 by means of a drive 23.
  • the thread release element 14 with the thread release means 46 positioned in the rest position II moves parallel to the centrifuge inner wall 26 into the spinning centrifuge 3 and positions itself, for example, in the position shown in FIG. 5.
  • the thread release means 46 is then pivoted elastically from the rest position II shown in FIG. 5 into the working position I indicated in FIGS. 3 and 4, and gently lies with its cutting edge 48 against the lowest winding position of the spin cake 15.
  • the thread solvent 46 is either by means of a pneumatically actuated pivoting device 61 or by means of an electrically operating pivoting device 35 swung in.
  • a pneumatic pivoting device 61 with two Compressed air nozzles 56, 57 is provided by the Control device 30, the 2/2-way valve 65, as in FIG. 4 shown, switched to continuity, so that from the Compressed air nozzle 56 exits a compressed air stream 59.
  • the Pressure level of this compressed air flow is by means of a Throttle device 66 adjustable adjustable.
  • the compressed air meets the one arranged on the back of the thread release means 46 Baffle surface 58 so that the thread release means 46 in the in Fig. 4th shown working position I is pivoted. In this Working position I is the cutting edge 48 of the thread solvent 46 at the lowest turns of the spin cake 15 and thereby initiates the wrapping process described above.
  • the return of the thread release means 46 to the rest position II takes place either via a second compressed air nozzle 57 or through a (not shown) spring element, which instead of second compressed air nozzle can be arranged in this area. That is, in an arrangement with two compressed air nozzles the directional control valves 65, 67 are switched so that the compressed air nozzle 56 remains unoccupied while that of the compressed air nozzle 57 is applied.
  • the control device 30 controls, for example, an electrical switch 60 which is switched on in the power line 38 ′′ in the sense “close”, so that the electromagnetic coil 37 is energized.
  • the magnetic currents which occur thereby act in the sense of "attracting" the thread solvent 46, which is at least partially made of a ferromagnetic material, and pivot it into the working position I indicated in FIGS. 3 and 5.
  • a potentiometer 39 switched into the power line 38 '' enables a defined setting of the effective magnetic force, so that even with an electrically operating pivoting device 35, a gentle action on the spin cake 15 by the cutting edge 48 of the thread releasing element 46 can be ensured.
  • the return of the thread release means 46 to its rest position II can either here, as with the pneumatic Swiveling device, via a (not shown) Spring element take place or is energized by appropriate a second solenoid 36 causes.
  • Swinging in the thread solvent could for example by means of a bimetal drive or the like.
EP99100757A 1998-01-24 1999-01-16 Verfahren und Vorrichtung zum Einleiten des Umwickelvorganges beim Zentrifugenspinnen nach einem Fadenbruch Expired - Lifetime EP0931864B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19802656 1998-01-24
DE19802656A DE19802656A1 (de) 1998-01-24 1998-01-24 Verfahren und Vorrichtung zum Einleiten des Umwickelvorganges beim Zentrifugenspinnen nach einem Fadenbruch
DE19849191 1998-10-26
DE19849191A DE19849191A1 (de) 1998-10-26 1998-10-26 Vorrichtung zum Einleiten des Umwickelvorganges beim Zentrifugenspinnen

Publications (3)

Publication Number Publication Date
EP0931864A2 EP0931864A2 (de) 1999-07-28
EP0931864A3 EP0931864A3 (de) 1999-12-08
EP0931864B1 true EP0931864B1 (de) 2001-08-01

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Application Number Title Priority Date Filing Date
EP99100757A Expired - Lifetime EP0931864B1 (de) 1998-01-24 1999-01-16 Verfahren und Vorrichtung zum Einleiten des Umwickelvorganges beim Zentrifugenspinnen nach einem Fadenbruch

Country Status (6)

Country Link
US (1) US6109014A (ja)
EP (1) EP0931864B1 (ja)
JP (1) JP4240622B2 (ja)
DE (1) DE59900172D1 (ja)
ES (1) ES2159199T3 (ja)
RU (1) RU2215072C2 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637270A1 (de) * 1996-09-13 1998-03-19 Schlafhorst & Co W Topfspinnvorrichtung
DE19938433A1 (de) * 1999-08-13 2001-02-15 Schlafhorst & Co W Verfahren und Vorrichtung zum Zentrifugenspinnen
DE10211850A1 (de) * 2002-03-18 2003-10-02 Schlafhorst & Co W Verfahren zum Betreiben einer Spinnvorrichtung
DE10211862A1 (de) * 2002-03-18 2003-10-02 Schlafhorst & Co W Zentrifugenspinnvorrichtung
CN103741238A (zh) * 2014-01-24 2014-04-23 四川省新万兴碳纤维复合材料有限公司 碳纤维复合材料离心缸及其制作方法
CN106966125B (zh) * 2017-04-25 2018-12-04 福建景丰科技有限公司 落纱包装自动化生产工艺
JP6881345B2 (ja) * 2018-02-09 2021-06-02 株式会社豊田自動織機 ポット精紡方法およびポット精紡機
JP6992574B2 (ja) 2018-02-16 2022-01-13 株式会社豊田自動織機 ポット精紡機における巻き返し方法
JP7206717B2 (ja) * 2018-09-11 2023-01-18 株式会社豊田自動織機 ポット精紡機の制御方法
JP7006561B2 (ja) * 2018-10-11 2022-02-10 株式会社豊田自動織機 ポット精紡機
JP7200835B2 (ja) * 2019-06-14 2023-01-10 株式会社豊田自動織機 ポット精紡機

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL60680C (ja) * 1939-05-15
FR1097745A (fr) * 1949-01-12 1955-07-08 Sajetfabrieken P Clos & Leembr Métier centrifuge à retordre ou à filer
CH348346A (de) * 1956-06-28 1960-08-15 Ministerul Ind Usoare Werkzeug zum Überführen eines gebrochenen Fadens von einem im rotierenden Spinntopf einer Zentrifugalspinn- oder -zwirnmaschine abgelegten Garnkörper auf eine Aufspulhülse
DE4400999A1 (de) * 1994-01-14 1995-07-20 Koenig Reinhard Vorrichtung zum Beheben der Ausbildung einer Fadensehne und/oder eines Fadenbruches eines mittels einer Spinnzentrifuge gesponnenen Fadens und Verfahren hierzu
DE19520153B4 (de) * 1995-06-01 2006-06-08 Saurer Gmbh & Co. Kg Topfspinnmaschine
DE19523937B4 (de) * 1995-06-30 2004-02-19 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zum Topfspinnen
DE19523938B4 (de) * 1995-06-30 2004-03-04 Saurer Gmbh & Co. Kg Topfspinnmaschine

Also Published As

Publication number Publication date
ES2159199T3 (es) 2001-09-16
EP0931864A2 (de) 1999-07-28
US6109014A (en) 2000-08-29
EP0931864A3 (de) 1999-12-08
JP4240622B2 (ja) 2009-03-18
DE59900172D1 (de) 2001-09-06
RU2215072C2 (ru) 2003-10-27
JPH11256434A (ja) 1999-09-21

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