EP0391101B1 - Bobineuse - Google Patents

Bobineuse Download PDF

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Publication number
EP0391101B1
EP0391101B1 EP90104897A EP90104897A EP0391101B1 EP 0391101 B1 EP0391101 B1 EP 0391101B1 EP 90104897 A EP90104897 A EP 90104897A EP 90104897 A EP90104897 A EP 90104897A EP 0391101 B1 EP0391101 B1 EP 0391101B1
Authority
EP
European Patent Office
Prior art keywords
speed
contact roller
mandrel
contact
package
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
EP90104897A
Other languages
German (de)
English (en)
Other versions
EP0391101A1 (fr
Inventor
Armin Wirz
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4206729&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0391101(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0391101A1 publication Critical patent/EP0391101A1/fr
Application granted granted Critical
Publication of EP0391101B1 publication Critical patent/EP0391101B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • B65H54/42—Arrangements for rotating packages in which the package, core, or former is rotated by frictional contact of its periphery with a driving surface
    • 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
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/044—Continuous winding apparatus for winding on two or more winding heads in succession
    • B65H67/048—Continuous winding apparatus for winding on two or more winding heads in succession having winding heads arranged on rotary capstan head
    • 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

  • This invention relates to an automatic winder for the "continuous" (lossless) winding of continuous filaments, in particular but not exclusively synthetic threads.
  • Such an automat comprises two or more winding mandrels, one of which is used to wind the thread, while the other is prepared in a standby position, so that the thread can be transferred to the second mandrel to continue the winding when the package on the first mandrel is completed ( "Reel change").
  • spindle drive or direct drive
  • the thread runs around the so-called contact roller on the package during the normal winding process. This contact roller exerts a predetermined contact pressure on the forming package. If necessary, it also serves as a guide for the thread between a traverse and the pack and / or supplies a signal representing the peripheral speed of the pack to a controller for the bobbin drive.
  • the contact roller is in contact with the package and the roller speed is controlled such that the peripheral speed of the roller is kept equal to the delivery speed of the thread.
  • This contact is interrupted during the coil change and must be restored after the change - a suitable method has been described in our US Pat. No. 4,548,366 (EP-A-182 389 and EP-A-200 234).
  • the bobbin changing process is a delicate operation, which is particularly associated with the risk of a breakdown of the thread tension.
  • the peripheral speed of the full package can be kept constant during the change without any problems after the contact between the contact roller and the package has been interrupted until the thread is transferred to the other mandrel - see in this connection USPS 4 487,374 (EP-A-80076).
  • it is also necessary to interrupt the traversing of the thread This represents a reduction in the effective "take-up speed" for the thread, which causes a corresponding decrease in the thread tension. This effect has not been taken into account in the prior art.
  • the speed of the contact roller should be increased during the bobbin change.
  • This increase in speed can be carried out immediately after the contact between the full pack and the contact roller has been interrupted and can take place “at a jump”, at least in comparison with an increase in the pack speed.
  • the increase in the peripheral speed of the contact roller helps to keep the thread tension in the thread path above this roller in spite of the effective switching off of the To keep traversing at a suitable level.
  • the increase in speed of the contact roller can be reversed after restarting the traversing movement of the thread, but it can prove to be advantageous not to reduce the speed of the contact roller again immediately after resuming the packaging, but only after a transition phase. During this transition phase, the thread flow can calm down again after the "disturbances" of the changing process.
  • FIG. 1A A winder according to FIG. 1A has been described in detail in our European patent specification No. 73 930 and is accordingly only indicated here.
  • the frame 10 carries two spools 12, 14.
  • Each mandrel 12, 14 is carried by a pivot arm 16, 18 and is thus pivotable about a pivot axis 20, 22 between a respective doff position (shown) and an operating position in contact with a contact roller 24.
  • the thread (not shown) is delivered in operation via a traversing (not shown) to the contact roller and therefore to a spool mandrel in the operating position, a package (spool) being formed on the mandrel.
  • the mandrel is driven in rotation about its own longitudinal axis.
  • a bobbin change is carried out, the mandrel with the full package being pivoted back into its doff position and the second mandrel being moved into the operating position.
  • the second mandrel takes over the thread and continues the winding process without interruption, for which the second mandrel must now rotate about its own longitudinal axis, but the first mandrel is braked to a standstill for the doffing.
  • the machine according to FIG. 1B is also able to carry out such a lossless exchange process, for which purpose the two mandrels 12, 14 are not each carried on a swivel arm but together by a turret head 26.
  • the turret is mounted in the frame such that it can be rotated about an axis 28 in such a way that the mandrels can be brought alternately from the doff position (below) into an operating position in contact with the contact roller 24.
  • the latter is carried by a carriage 30 that can be moved up and down.
  • Figure 2 shows a drive system with appropriate regulation that is suitable for both types of coils ( Figure 1A and 1B).
  • Reference number 12A indicates a frequency-controlled, electric drive motor which is coupled directly to the mandrel 12 and can drive it during and after the winding travel - the reference numbers 14A, 24A indicate corresponding drive motors for the second mandrel 14 and the contact roller 24.
  • Last motor is also connected to a tachometer signal generator 30, which generates a signal representing the speed of the contact roller.
  • Each drive motor 12A, 14A is supplied with energy via a respective frequency converter 32, 34, the instantaneous feed frequency being determined by a respective controller 36, 38. Both controllers 36, 38 receive a setpoint signal from a common, adjustable setpoint generator 40. During the winding travel, the working regulator 36 or 38 (ie the regulator of the winding mandrel 12 or 14) receives an actual value signal from the tachometer signal generator 30 via a switching means 41, which during the Switching procedure is switched.
  • the oscillation is indicated in FIG. 2 by its drive motor 42, which is also frequency-controlled by the control unit 44 containing the controllers 36, 38 via a frequency converter 46. Due to the traversing, the thread is moved back and forth along the mandrel axis during operation in order to enable the desired pack structure.
  • the speed of the motor 42 in relation to the regulated speed of the motor 12A or 14A, e.g. a so-called wild winding or a precision coil or a step precision winding can be built up.
  • the regulation basically corresponds to that of the European patents EP-C-182 389 and EP-C-94 483; for a winder according to FIG. 1B basically corresponds to the regulation in US Pat. No. 4,765,552.
  • FIG. 3 This diagram shows the states of the three elements mandrel 12 (motor 12A), mandrel 14 (motor 14A) and contact roller 24 (motor 24A) over time on the horizontal axis.
  • the speed of the motor 14A must be continuously reduced via the winding travel in order to take into account the constantly increasing diameter of this package with a constant delivery speed of the thread.
  • This "winding operation" of the motor 14A is regulated by the controller 38 by means of a target / actual comparison, since the package is continuously in contact with the contact roller 24, so that the tachometer signal generator 30 emits a feedback signal.
  • mandrel 12 is set in rotation at time To, for which purpose motor 12A is frequency-controlled from the setpoint generator via controller 36 in order to reproduce a predetermined ramp-up curve K.
  • This acceleration is only controlled (and not regulated) since no feedback signal is generated for mandrel 12.
  • the contact roller 24 is driven at a constant speed, which corresponds to the delivery speed of the thread.
  • the traversing motor 42 is also driven at a constant speed - the state of this motor is not shown in FIG. 3 because it does not change during the changeover process.
  • the pack reaches the specified target dimension and a spool change is initiated.
  • the empty mandrel 12 has previously reached an alternating speed W, which speed can represent a slight overspeed in relation to the delivery speed of the thread - thus the thread tension during the Handover phase is maintained.
  • the normal winding of the thread on the mandrel 14 is now canceled by suddenly moving the mandrel away from the contact roller. The thread is still included in the pack on the same mandrel, since the transfer has not yet taken place.
  • control loop is also terminated via the contact roller, so that the control unit 44 can now only perform a control function in relation to the mandrel drive 14A.
  • this control slightly accelerates the speed of motor 14A and spool 14 with the full package to increase the effective take-up speed and maintain thread tension.
  • the control unit 44 causes the contact roller motor 24A to accelerate for the same purpose. After a brief acceleration, the contact roller speed is stabilized again at a higher level.
  • the mandrel motor 14 (with the full package) continues to be accelerated relatively slowly (even after the speed increase from the contact roller has ended), so that the thread is kept taut during the change.
  • the mandrel 12 with the caught thread comes into contact with the contact roller 24, which is still driven at an increased speed (the speed of the contact roller is adjusted to the speed of the controlled mandrel 12).
  • the tachometer signal generator now again provides a feedback signal which is used to regulate the speed of the mandrel 12. - This speed now runs down a predetermined "ramp" R.
  • the speed of the mandrel is slowed down because the diameter of the packing builds up, but the negative acceleration up to the end T5 of the ramp R is somewhat steeper than during normal coil operation, which occurs after time T5.
  • the ramp R is maintained until the thread has found "rest” again - in this period T3 to T5 the traversing movement is started again, which can cause a tension peak.
  • the controller 42 determines for the contact roller 24 the relatively high speed up to an adjustable time T4 between T3 and T5.
  • the controller After T4, the controller also determines a negative acceleration B for the contact roller 24 until time T5 when the contact roller is driven again at the operating speed.
  • the effective speed of the contact roller is only partially determined by the controller between T3 and T5 - in practice, this speed is followed by a curve KK (dashed line), which is also influenced by the transmission of a torque from the mandrel 12.
  • Phase B is selected in such a way that the contact roller 24 operates again at the desired speed at the time T5, so that the normal speed at this time Operating condition prevails (both for mandrel 12 and for contact roller 24).
  • the mandrel 14 follows a more or less predetermined braking curve, which, however, is only initiated after the point in time T5. Since this curve has no significance for the invention, it is not described in more detail here.
  • each mandrel can take up more than one thread at the same time and form it into a respective package.
  • the sequence of the changing steps and their time relationships are determined by a programmable controller (not shown) in the control unit 42.
  • a programmable controller (not shown) in the control unit 42.
  • Such programmable controls are known and are not described here - they can be dependent partly on clock signals and partly on sensors (for a step that has taken place).

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Winding Filamentary Materials (AREA)

Claims (5)

  1. Dispositif pour renvider continuellement au moins un fil, possédant au moins deux mandrins (12, 14) pourvus chacun d'un entraînement individuel, et un rouleau de contact (24) qui, pendant le bobinage normal, est en contact avec la bobine en formation et qui est pourvu d'un entraînement individuel,
    caractérisé par
    une commande (44) pour l'entraînement du rouleau de contact (24A), afin d'effectuer une augmentation du nombre de tours du rouleau de contact après l'interruption du contact existant entre la bobine et le rouleau de contact.
  2. Dispositif selon revendication 1,
    caractérisé par
    une commande pour chacun des entraînements de mandrin qui est telle que, lors de l'échange de bobine, le nombre de tours du mandrin portant la bobine pleine est augmenté après l'interruption du contact existant entre cette bobine et le rouleau de contact, jusqu'au transfert du fil sur l'autre mandrin.
  3. Dispositif selon revendication 1,
    caractérisé par le fait que
    la commande est conçue de telle façon que le nombre de tours de la bobine pleine est augmentée continuellement jusqu'au transfert du fil.
  4. Dispositif selon l'une des revendications précédentes,
    caractérisé par le fait que
    la commande est conçue de telle façon que l'augmentation du nombre de tours du rouleau de contact (24) est annulée après la remise en marche du mouvement de va-et-vient du fil.
  5. Dispositif selon revendication 4,
    caractérisé par le fait que
    la commande est conçue de telle façon que l'augmentation du nombre de tours du rouleau de contact (24) n'est réduite qu'après une phase de transition, et où, pendant cette phase de transition, la marche du fil peut à nouveau se tranquiliser, après le procédé d'échange.
EP90104897A 1989-04-06 1990-03-15 Bobineuse Expired - Lifetime EP0391101B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1280/89 1989-04-06
CH128089 1989-04-06

Publications (2)

Publication Number Publication Date
EP0391101A1 EP0391101A1 (fr) 1990-10-10
EP0391101B1 true EP0391101B1 (fr) 1994-05-18

Family

ID=4206729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104897A Expired - Lifetime EP0391101B1 (fr) 1989-04-06 1990-03-15 Bobineuse

Country Status (4)

Country Link
US (1) US5082191A (fr)
EP (1) EP0391101B1 (fr)
JP (1) JP2716837B2 (fr)
DE (1) DE59005704D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161789A (en) * 1996-08-29 2000-12-19 Neumag - Neumuenstersche Maschinen - Und Anlagenbau Gmbh Automatic winder using one setter for each mandrel, where the setters alternate between controlling the mandrel drive and the contact roll drive

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762276A (en) * 1992-10-05 1998-06-09 Toray Engineering Co., Ltd. Yarn winding roller drive
EP0618165B1 (fr) * 1993-03-15 2002-06-12 Toray Engineering Co., Ltd. Enrouleur de fil
JP2684337B2 (ja) * 1994-04-22 1997-12-03 東レエンジニアリング株式会社 スピンドル駆動型巻取機の駆動制御方法
DE19832811A1 (de) * 1997-07-26 1999-01-28 Barmag Barmer Maschf Verfahren zum Aufwickeln eines Fadens
DE19802509A1 (de) * 1998-01-23 1999-07-29 Rieter Ag Maschf Aufwindevorrichtung für Endlosfäden
DE502005009460D1 (de) * 2004-05-06 2010-06-02 Oerlikon Textile Gmbh & Co Kg Verfahren und vorrichtung zum kontinuierlichen aufwickeln mehrerer fäden
DE102012007987A1 (de) 2011-05-28 2012-11-29 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum kontinuierlichen Abziehen und Aufspulen mehrerer Fäden
CN104960981B (zh) * 2015-04-14 2017-11-03 郑州中远氨纶工程技术有限公司 弹性纱线卷绕装置及弹性纱线切换卷绕方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3274541D1 (en) * 1981-09-03 1987-01-15 Rieter Ag Maschf Filament winding machine
JPS5878953A (ja) * 1981-11-04 1983-05-12 Teijin Ltd 糸条巻取装置
US4548366A (en) * 1982-05-17 1985-10-22 Rieter Machine Works, Ltd. Chuck drive system
JPS59227663A (ja) * 1983-06-07 1984-12-20 Teijin Ltd タ−レツト式自動巻取機の糸条切替方法および装置
JPS6327378A (ja) * 1986-07-16 1988-02-05 Teijin Seiki Co Ltd 巻取機の駆動方法
US4917319A (en) * 1988-07-06 1990-04-17 Barmag Ag Method of winding yarn packages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161789A (en) * 1996-08-29 2000-12-19 Neumag - Neumuenstersche Maschinen - Und Anlagenbau Gmbh Automatic winder using one setter for each mandrel, where the setters alternate between controlling the mandrel drive and the contact roll drive

Also Published As

Publication number Publication date
DE59005704D1 (de) 1994-06-23
JPH03111377A (ja) 1991-05-13
US5082191A (en) 1992-01-21
EP0391101A1 (fr) 1990-10-10
JP2716837B2 (ja) 1998-02-18

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