EP1868933A1 - Procede et dispositif de rebobinage de fils - Google Patents

Procede et dispositif de rebobinage de fils

Info

Publication number
EP1868933A1
EP1868933A1 EP06723499A EP06723499A EP1868933A1 EP 1868933 A1 EP1868933 A1 EP 1868933A1 EP 06723499 A EP06723499 A EP 06723499A EP 06723499 A EP06723499 A EP 06723499A EP 1868933 A1 EP1868933 A1 EP 1868933A1
Authority
EP
European Patent Office
Prior art keywords
yarn
speed
take
rewinding
supply spool
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Withdrawn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
EP06723499A
Other languages
German (de)
English (en)
Inventor
Joe Reichmuth
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.)
SSM Schaerer Schweiter Mettler AG
Original Assignee
SSM Schaerer Schweiter Mettler 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 SSM Schaerer Schweiter Mettler AG filed Critical SSM Schaerer Schweiter Mettler AG
Priority to EP06723499A priority Critical patent/EP1868933A1/fr
Publication of EP1868933A1 publication Critical patent/EP1868933A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/385—Regulating winding speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/387—Regulating unwinding speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/40—Applications of tension indicators
    • 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 method for rewinding yarns at a take-off speed, comprising the steps of stripping a yarn from a supply spool, and winding the yarn on a yarn carrier rotating at a take-up speed, the yarn passing over one
  • Yarn run from the feed bobbin to the yarn carrier and a device for carrying out the method (rewinding device).
  • Such rewinding devices are used in particular for producing reels with yarn windings adapted to a subsequent process.
  • Rewinding of yarns is often done in yarn making.
  • the yarns are to be wound on spools in such a way that the spools in subsequent processes can be used optimally as feed bobbins.
  • the type of winding and its density should be optimized.
  • it is not tolerable if the yarn is unrolled randomly on the supply spool, that is to say has a so-called "wild winding.”
  • the yarn to be dyed is rewound or it is a coil is wound with a yarn having a predetermined yarn length, ie a predetermined length of run.
  • the rewinding should be carried out with the highest possible winding speed (rewinding speed).
  • rewinding speed the highest possible winding speed
  • yarn tension of the yarn to be rewound during the rewinding process and yarn tension variations are more pronounced.
  • the latter leads to a deterioration in the quality of the winding on the coil created, since thread tension fluctuations during winding lead to Garn Whyschwankungen of the windings.
  • the latter can in turn worsen the unwinding of these coils in subsequent processes.
  • the thread tension variations can easily lead to thread breaks during rewinding.
  • the latter occurs especially in areas of integer Windungsgue, ie the ratio of coil rotation to Doppelhubiere, so-called mirror zones, the supply coils heaped up. In these areas, the thread layers are close to each other without being fixed by crossing points, which can lead to entrainment of adjacent threads and thus thread tension peaks or thread breaks in the overhead deduction. These thread tension peaks severely limit the rewinding speed.
  • the yarn tension of yarns in yarn conditioning processes associated with rewinding processes, e.g. Oiling, dyeing or stretching yarns, to measure and regulate.
  • the yarn tension of a yarn is measured in the yarn path after a conditioning shortly before its winding. It is attempted to keep the yarn tension in a predetermined yarn tension range constant by means of a yarn tension control module according to a control variable derived from the measured yarn tension.
  • the yarn tension control module in this case comprises a yarn brake and / or a controllable delivery mechanism, by means of which the yarn tension is regulated by braking and / or accelerating the yarn speed of the yarn.
  • the take-off roll typically includes a main engine-driven roller and a passive separation roller that controls the geometry of wraps of yarn around the main roller sets.
  • a take-off roll In order to avoid yarn tension variations in the unwinding region, it is known to exert a pressing force on the main roll by means of a "nip-roller", that is to say a further roller. This traps the yarn between the main roll and the other roll, causing the yarn to be pulled off at the tangential speed of the main roll.
  • various biasing systems disposed between the platen and a delivery mechanism are known to increase and stabilize the yarn tension of the supply spool as it is withdrawn from the supply spool.
  • the yarn is often pulled off during rewinding overhead. When pulling off overhead, the feed bobbin does not rotate itself, so working with an immediately usable spare bobbin is possible when pulling off overhead.
  • the invention has for its object to provide a method and apparatus for rewinding yarns are detected in the yarn tension peaks and areas of high yarn tension on a supply spool to lower the unwinding speed in these areas so far that a yarn breakage is avoided.
  • a take-off speed control variable of the yarn from the supply bobbin, in the region of a take-off zone upstream of a take-off delivery unit defining a take-off speed is defined for a defined quality of the windings and / or one
  • the inventive method is based on the finding that the causes of most thread tension fluctuations of parameters of the supply spool, or parameters with which the yarn is unwound from the supply spool depend.
  • the take-off speed control quantity is thus determined by the feed bobbin during the winding operation in a case of several possibilities. If an increase in the thread tension of the yarn is detected or expected via the take-off speed control variable, the Withdrawal speed, eg by controlling the Aufwickei york, temporarily lowered. Alternatively, the withdrawal speed can be controlled by controlling the take-up speed.
  • the thread tension in the peel-off region is stabilized, so that a regular profile of the thread tension over time, independent of e.g. the diameter of the feed bobbin, is complied with. Furthermore, it is possible to significantly increase the average take-off speed over the entire bobbin travel. It is an increase in the production rate of the manufacturing process, while maintaining quality, possible because thread tension peaks and thereby caused yarn breaks are avoided.
  • the stabilization of the withdrawal thread tension depends on the withdrawal speed.
  • the withdrawal speed is the manipulated variable for the withdrawal thread tension.
  • the objective is to maximize the
  • the thread tension can be kept constant regardless of the quality of the yarn, the diameter of the supply spool and the selected withdrawal speed.
  • the yarn tension can be permanently reduced, thereby enabling higher production speed and efficiency.
  • a withdrawal thread tension is preferably determined as the take-off speed control variable.
  • This provides a simple and inexpensive way to determine the take-off speed control size. Determining the take-off speed control variable may advantageously be above target winding speed values as a function of a current diameter of the supply bobbin and / or the current weight of the supply bobbin and / or the length of the yarn still on the supply bobbin and / or of optical monitoring data of a withdrawal balloon of the supply bobbin and / or of optical monitoring data of mirror zones on the supply spool done.
  • the remaining length of the yarn still present on the supply bobbin can be determined from the already rewound length (running length) of the yarn with known total length.
  • a thread tension fluctuation can be counteracted even before it occurs by reducing the take-up speed.
  • length measurement or weight detection can be concluded directly on an increase in the withdrawal thread tension, since this increases with decreasing radius of the supply spool at a constant take-off speed.
  • the diameter of the feed bobbin can also be converted into weight ranges or run lengths.
  • existing cross angle are evaluated in the winding of the supply spool.
  • Mirror zones only occur in the case of wild winding, in which the traversing speed is in a constant relation to the winding speed.
  • the supply bobbins pass through integer winding ratios for certain diameters, in particular as a function of the crossing angle. One can therefore already calculate the problem zones or critical diameters on the basis of the crossing angle,
  • a supply spool recording set up for Aufnage a supply bobbin with a yarn to be deducted
  • a rotatable with a take-up Garnliefact adapted for receiving a yarn carrier to which the yarn is wound up, wherein the yarn can be guided over a yarn path from the supply spool to the yarn carrier.
  • control quantity receiving means configured to determine a take-off speed control variable of the yarn from the supply reel, wherein a control module is provided, configured to control the rewinding device for regulating a take-off speed as a function of the take-off speed control variable.
  • the rewinding device is preferably configured to rotate the yarn carrier receptacle with the winding speed, it is then designed as a winding unit for driving the Garnliefact.
  • the control module is then set to control the take-off speed by controlling the take-up speed.
  • the rewinding device according to the invention is set up to carry out the method according to the invention and thus provides the advantages of the method according to the invention.
  • a take-off delivery unit is provided in the yarn path, set up to set a take-off speed of the yarn, wherein the control-size receiving means are set up Determine the deduction speed control size on the thread or on the feed bobbin before the deduction delivery unit.
  • This embodiment is particularly suitable for overhead removal of the supply spool.
  • the rewinding device can be set up to drive the deduction delivery mechanism, wherein the control module is then set up to regulate the rewinding by controlling the withdrawal speed.
  • the rewinding device when the control size receiving means have a yarn tension sensor, set up as
  • the rewinding device can have as a control size receiving means means for determining the
  • a yarn processing machine has at least one rewinding device according to the invention.
  • FIG. 1 shows a rewinding device according to the invention.
  • FIG. 2 shows the thread tension as a function of the spool travel in front of the take-off delivery unit of a rewinding device according to the prior art.
  • FIG. 1 shows a rewinding device 1 according to the invention for rewinding yarns.
  • the yarn is unwound from a supply spool 3, which is arranged in a feed bobbin receptacle 4 for overhead removal.
  • a yarn carrier 7, on which the yarn is wound, is arranged in a yarn carrier receptacle 8.
  • a not shown Umspulaggregat that is designed as a winding unit for driving the Garnliefact 8, drives the Garnchtfact 8 such that it rotates at a take-up speed.
  • the rewinding unit is an electric motor which engages the yarn in such a way that it can at least influence the rewinding speed.
  • the yarn is guided during rewinding in a yarn path 10 of the supply spool 3 to the yarn carrier 7.
  • the yarn path 10 forms a discharge balloon 11.
  • a thread guide not shown, which allows an orderly yarn winding on the yarn carrier 7, the yarn path 10 is widened in a funnel shape in front of the yarn carrier 7.
  • a take-off speed control variable is detected and measured in a take-off zone 12a. It is in the Embodiment of Figure 1 as a control size receiving means a yarn tension sensor 15 in the yarn path 10 in front of a deduction delivery 17, which determines the withdrawal speed of the yarn by its rotational speed provided.
  • the yarn tension sensor 15 measures withdrawal tension values of the yarn take-up yarn tension from the supply bobbin 3 in the yarn path 10 before the take-off supply unit 17 continuously. These take-off tension values are used as a take-off speed control quantity of the yarn from a control module 19 in order to control the take-up speed of the yarn carrier receptacle 8 and thus of the yarn on the yarn carrier 7 as a function of the take-off speed control variable.
  • the rewinding device 1 further comprises a threadline tension control module 20.
  • This yarn thread tension control module 20 is set up to measure a yarn thread tension in the yarn path 10 shortly before the yarn carrier 7, that is to say a take-up yarn tension, by means of a further yarn tension sensor 22.
  • the take-off speed of the take-off delivery mechanism 17 is regulated by the thread-yarn tension control module 20 as a function of the threadline tension.
  • the yarn speed in the yarn path 10 can be regulated as a function of the yarn thread tension by means of a yarn braking module 25 arranged in the yarn path 10.
  • FIG. 2 shows the thread tension S in centinewtons [cN] as a function of the spool travel t in front of the take-off delivery unit of a rewinding device according to the prior art.
  • Spool travel t is understood to mean the time course of the entire unwinding process.
  • the thread tension S increases with increasing unwinding of the supply spool, with their fluctuations increasing sharply.
  • the increase in the yarn tension S has its main cause in the decreasing supply spool radius, which leads to higher speeds of the yarn at the same take-off speed.
  • the transition between different mirror zones of the supply bobbin results in a strong short-term increase in the thread tension (Thread tension tips 33).
  • the method according to the invention makes it possible to avoid yarn tension fluctuations as far as possible, in particular also in mirror zones during the entire package travel t.
  • the thread tension peaks 33 occurring in the prior art are dispensed with when using the method according to the invention.
  • Proposed is a method and apparatus for rewinding yarns at a take-off speed.
  • the method comprises the following method steps: unwinding or withdrawing a yarn from a supply spool 3, and winding up the yarn on a yarn carrier 7 rotating with a take-up speed, the yarn being guided over a yarn path 10 from the supply spool 3 to the yarn carrier 7.
  • a take-off speed control quantity of the yarn is determined by the supply reel 3, preferably in the yarn path 10 before a take-off delivery 17 defining a take-off speed, and the take-off speed is controlled by a control module 19 as a function of the take-off speed control variable.
  • the invention is not limited to the above

Landscapes

  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

L'invention concerne un procédé et un dispositif de rebobinage de fils avec une certaine vitesse de dévidage. Le procédé selon l'invention consiste à dévider un fil d'une bobine d'alimentation (3) et à enrouler ce fil sur un support de fil (7) tournant avec une certaine vitesse d'enroulement, le fil étant guidé sur une trajectoire (10) de la bobine d'alimentation (3) au support de fil (7). Une variable de contrôle de la vitesse de dévidage du fil est déterminée par la bobine d'alimentation (3), de préférence dans la trajectoire (10) en amont d'un mécanisme d'alimentation à dévidage (17) fixant une vitesse de dévidage. Cette vitesse de dévidage est ensuite réglée par un module de réglage (19) en fonction de la variable de contrôle déterminée.
EP06723499A 2005-03-31 2006-03-17 Procede et dispositif de rebobinage de fils Withdrawn EP1868933A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06723499A EP1868933A1 (fr) 2005-03-31 2006-03-17 Procede et dispositif de rebobinage de fils

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05007130A EP1707523A1 (fr) 2005-03-31 2005-03-31 Méthode et dispositif pour rebobiner des fils textiles
PCT/EP2006/002455 WO2006103001A1 (fr) 2005-03-31 2006-03-17 Procede et dispositif de rebobinage de fils
EP06723499A EP1868933A1 (fr) 2005-03-31 2006-03-17 Procede et dispositif de rebobinage de fils

Publications (1)

Publication Number Publication Date
EP1868933A1 true EP1868933A1 (fr) 2007-12-26

Family

ID=34934659

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05007130A Withdrawn EP1707523A1 (fr) 2005-03-31 2005-03-31 Méthode et dispositif pour rebobiner des fils textiles
EP06723499A Withdrawn EP1868933A1 (fr) 2005-03-31 2006-03-17 Procede et dispositif de rebobinage de fils

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05007130A Withdrawn EP1707523A1 (fr) 2005-03-31 2005-03-31 Méthode et dispositif pour rebobiner des fils textiles

Country Status (2)

Country Link
EP (2) EP1707523A1 (fr)
WO (1) WO2006103001A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008028073B3 (de) * 2008-06-12 2009-12-10 Madeira Garnfabrik Rudolf Schmidt Kg Verfahren zum Zuführen von Garn zu einer Umspulmaschine
JP2018090379A (ja) * 2016-12-02 2018-06-14 村田機械株式会社 自動ワインダ、糸巻取システム及び糸巻取方法
CH719436A1 (de) * 2022-02-18 2023-08-31 Ssm Schaerer Schweiter Mettler Ag Vorrichtung zur Umspulung von Garnen mit einer Verwiegung einer Vorlagespule.
CH719820A1 (de) 2022-06-24 2023-12-29 Ssm Schaerer Schweiter Mettler Ag Vorrichtung zur Umspulung von Garnen.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3702702A1 (de) * 1986-02-27 1987-09-03 Baer Maschf Josef Regeleinrichtung fuer die fadenspannung bei wickelmaschinen, insbesondere in der faserwickeltechnik
DE3911532A1 (de) * 1989-04-08 1990-10-11 Schlafhorst & Co W Verfahren und spulautomat zum umspulen von kopsen zu kreuzspulen
DE3942685A1 (de) * 1989-12-22 1991-06-27 Rieter Ag Maschf Verfahren zur gewinnung eines fadenspannungssignals sowie fadensensor
DE4030892C2 (de) * 1990-09-29 2000-06-29 Schlafhorst & Co W Spuleinrichtung an einer Textilmaschine
IT1262088B (it) * 1993-03-17 1996-06-19 Atex Spa Sistema di controllo qualita' filato e relativo dispositivo
IT1275996B1 (it) * 1995-03-31 1997-10-24 Savio Macchine Tessili Srl Procedimento e dispositivo atti a controllare ed a regolare automaticamente in modo continuo la tensione cui e' assoggettato
DE19547870A1 (de) * 1995-12-21 1997-06-26 Schlafhorst & Co W Verfahren und Vorrichtung zur Überwachung der Funktion einer Paraffiniereinrichtung
JP2000110039A (ja) * 1998-09-30 2000-04-18 Murata Mach Ltd 多重撚糸機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006103001A1 *

Also Published As

Publication number Publication date
EP1707523A1 (fr) 2006-10-04
WO2006103001A1 (fr) 2006-10-05

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