EP0373324A2 - Procédé et dispositif pour reconnaître la qualité du dévidage des bobines de dévidage - Google Patents

Procédé et dispositif pour reconnaître la qualité du dévidage des bobines de dévidage Download PDF

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Publication number
EP0373324A2
EP0373324A2 EP89119368A EP89119368A EP0373324A2 EP 0373324 A2 EP0373324 A2 EP 0373324A2 EP 89119368 A EP89119368 A EP 89119368A EP 89119368 A EP89119368 A EP 89119368A EP 0373324 A2 EP0373324 A2 EP 0373324A2
Authority
EP
European Patent Office
Prior art keywords
thread
signal
winding
winding speed
payout
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.)
Granted
Application number
EP89119368A
Other languages
German (de)
English (en)
Other versions
EP0373324A3 (fr
EP0373324B1 (fr
Inventor
Edmund Wey
Hans Grecksch
Alberttho Pesch
Herbert Knors
Wilhelm Zitzen
Manfred Marquardt
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 EP0373324A2 publication Critical patent/EP0373324A2/fr
Publication of EP0373324A3 publication Critical patent/EP0373324A3/fr
Application granted granted Critical
Publication of EP0373324B1 publication Critical patent/EP0373324B1/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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • 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 detecting payout bobbins, the payoff properties of which do not correspond to a predeterminable quality when rewinding payout bobbins onto cross-wound bobbins in an automatic winder and a winding device for carrying out the method.
  • a pay-off spool with poor pay-off properties causes loss of production at the winding unit in question, reduced quality of the yarn and, in the case of non-stationary thread connecting devices, a blockage of this device due to constantly new requirements for thread connections at one and the same winding unit.
  • the invention is based on the object of recognizing and replacing payout coils, the payoff properties of which do not correspond to a predetermined quality.
  • the method according to the invention provides that the winding speed is measured at the winding point and a thread break in relation to the winding speed is used to identify the quality of the pay-off packages. If the specified quality is undershot, the corresponding payout spool is ejected and the winding process is continued with a new payout spool.
  • a tension sensor is provided at each winding unit for detecting the tension or tensile force of the running thread in the thread drive.
  • the tension sensor lies between a spinning bobbin on the thread delivery side and a package on the thread take-up side. With the help of this tension sensor is to be prevented that a too high tensile stress in the Spinning bobbin drawn thread occurs. If an increase in the thread tension is registered via the tension sensor, a cutting device for cutting the thread is actuated or, as another alternative, the drive motor of the roller of the traversing device is stopped. The thread must then be reconnected after the fault has been rectified.
  • the known method is intended to help prevent yarn breaks, but it does not check the quality of the running properties of the payout bobbins, so that the payout bobbins, which are noticeable due to an increased proportion of yarn breakage or frequent occurrence of yarn tension peaks, are not ultimately replaced with a new payout bobbin and thus despite the proposed measures continue to significantly impede proper winding operations at the winding unit.
  • the payout spool is only ejected after it has fallen below the specified quality several times.
  • a repeated thread break is used as an evaluation signal, which occurs below a predetermined speed threshold.
  • the winding unit is put into operation after a successful connection of a thread.
  • the presence of the thread is checked with a thread monitor, which acts as a signal transmitter for a thread break.
  • a sensor for determining the winding speed is activated.
  • the winding speed is compared with a speed threshold value previously entered in a signal processing device. If a thread break occurs below the specified speed threshold value, this thread break is counted. Either the payout spool is now immediately changed by means of the payout spool changer or it can be provided that a new thread connection is made.
  • the winding properties of the winding coil correspond to the specified quality.
  • a thread break occurring above this speed threshold value is no longer used as a criterion for the quality of the running properties.
  • the counter which counts the number of thread breaks and compares it with the number of the predetermined, tolerable number, is set to zero.
  • the speed threshold should be set so that a stable winding operation already exists in the run-up phase.
  • the speed threshold value is determined as a function of the yarn parameters, preferably the yarn material and the yarn number. It can thus be optimally adjusted to the yarn properties.
  • the advantage of the method according to the invention lies in the fact that payout bobbins, the payoff properties of which do not meet a certain predeterminable quality criterion, are recognized and replaced at an early stage. This avoids an unnecessarily long blocking of winding units, which leads to an increase in the productivity of the winding units and to a lower frequency of errors in the yarn.
  • An exemplary embodiment of the method according to the invention is explained in more detail using a flow chart. The flow chart of this method is shown in FIG. 1.
  • a thread connection, B is first made.
  • the restored thread is transferred to the winding device.
  • Commissioning, C of the winding unit takes place.
  • the winding speed of the high-speed winding drum is determined with the aid of a sensor. In the flow diagram, this is denoted by D. If a first thread break occurs now, E1, before the predetermined speed threshold value, H, of the winding speed has been reached, a query is made, F as to whether the number of permitted thread breaks below the predetermined speed threshold value has already been reached. If this is not the case, a new thread connection is made. Process steps B, C, D follow again.
  • the permitted number of thread breaks below the predetermined speed threshold is to be limited to two. After the first thread break below the predetermined speed threshold value of the winding speed, a thread connection takes place. If a second thread break, E2, occurs before the predetermined speed threshold value is reached, a query is made again, F, as to whether the number of permitted thread breaks has already been reached. In the present example, this number has already been reached with two thread breaks, so that the take-off spool is changed, G. After the change of the take-off spool, the thread connection with the cross-wound bobbin is established and the winding unit is put into operation again, after which proper unwinding takes place. L.
  • a thread connection is established after the first thread break before reaching the predetermined speed threshold value, H, the winding speed, and then the predetermined one If the speed threshold is exceeded, the subsequent break, K1, will not lead to a query of the permitted thread breaks, F.
  • a thread connection is made immediately, according to step B. Even with all subsequent thread breaks that occur above the predetermined speed threshold value, these thread breaks are not used as a criterion for the running properties of the payout spool. If there is no thread breakage, proper unwinding takes place, L.
  • FIG. 2 shows an exemplary embodiment of the device according to the invention for carrying out the method according to the invention.
  • the example shows in schematic form a winding device 1 in an automatic winder.
  • the thread 3 runs from a pay-off spool 2 onto a take-up spool 4, which is wound as a cheese and rests on a winding roller 5, which at the same time takes over the thread guidance as a grooved drum and is driven by a drive motor 6.
  • the thread runs over the balloon breaker 7 and a thread tensioner 8 as a tension regulator and a thread monitor 10, which acts as a signal generator for thread breaks, on the spool 4 on the spool 4.
  • a thread connecting device 9 is also provided, which can be installed in a fixed position on the winding device 1 or on a movable service device, not shown here, through which it can be brought to the corresponding winding point, if necessary, to correct a thread break.
  • the winding device 1 has a signal processing device 11 which simultaneously functions as a control device.
  • a sensor 12 for determining the winding speed is installed on the winding roller 5.
  • This sensor 12 is connected to a signal generator 13 via a signal line 12a Connection that is integrated in the signal processing device 11.
  • the thread monitor 10 is connected via a signal line 10a to a counter for the thread breaks 15 and to the signal processing device 11.
  • a speed threshold value generator 14 is connected upstream of the signal generator 13. It can be used to set the speed threshold value depending on the yarn parameters, for example the material and the yarn number. The winding operation should already be stable at this winding speed.
  • a speed threshold value of about 300 m / min was found to be advantageous. That is about 30 percent of the usual winding speed. At different winding speeds, the speed threshold can be above or below this value.
  • the counter for thread breaks 15 is preceded by a thread break signal transmitter 16, on which the number of permitted thread breaks below the speed threshold can be set.
  • the signal processing device 11 emits a signal via the signal line 6a in order to stop the drive motor 6 of the grooving drum, the winding roller 5. At the same time, a signal for producing a thread connection is emitted via signal line 9a to the thread connecting device 9. After the thread has been connected, the drive motor 6 is given a signal to start.
  • the thread monitor 10 and the sensor 12 for determination of the winding speed are activated and are connected to the signal processing device 11.
  • the winding speed is constantly compared with the specified speed threshold. If this threshold value is exceeded and there is no thread break by then, the payout spool is properly unwound.
  • the run-off properties of the pay-off spool correspond to the specified quality.
  • the signal processing device 11 stops the drive motor 6 on the basis of the thread break signal given by the thread monitor 10. At the same time, the number of thread breaks is compared with the permitted number of thread breaks specified by the thread break signal generator 16.
  • the signal processing device 11 sends a signal to the thread connecting device 9 for establishing a thread connection and, after the thread connection has been made, to the drive motor 6 a signal for starting the winding point.
  • the signal processing device 11 sends a signal via signal line 17 a to the take-up reel changer 17, which then supplies the take-up spool 2, the running properties of which are not correspond to the specified quality, exchanged for the new, full payout spool 18.
  • a thread connection is made via the thread connecting device 9 to the thread spooled onto the cheese 4.
  • the thread is then passed back to the winding device 1, and the signal processing device sends the signal line 6a to the drive motor 6 of the winding roller 5 to start the winding unit again.
  • the counter 15 for the thread breaks is set to zero.
  • the counter 15 for thread breaks can be set to zero as follows: if a take-up spool has been changed, if the specified speed threshold value of the winding speed is exceeded or if the number of thread breaks permitted by the thread break signal generator 16 is reached in an uninterrupted sequence below the specified speed threshold value of the winding speed. Thread breaks that occur above the predetermined speed threshold are not registered in the thread break counter 15.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
EP89119368A 1988-12-16 1989-10-19 Procédé et dispositif pour reconnaître la qualité du dévidage des bobines de dévidage Expired - Lifetime EP0373324B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3842381A DE3842381A1 (de) 1988-12-16 1988-12-16 Verfahren und vorrichtung zum erkennen der ablaufeigenschaften von ablaufspulen
DE3842381 1988-12-16

Publications (3)

Publication Number Publication Date
EP0373324A2 true EP0373324A2 (fr) 1990-06-20
EP0373324A3 EP0373324A3 (fr) 1991-10-30
EP0373324B1 EP0373324B1 (fr) 1993-08-04

Family

ID=6369323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119368A Expired - Lifetime EP0373324B1 (fr) 1988-12-16 1989-10-19 Procédé et dispositif pour reconnaître la qualité du dévidage des bobines de dévidage

Country Status (4)

Country Link
US (1) US5022596A (fr)
EP (1) EP0373324B1 (fr)
JP (1) JP2688265B2 (fr)
DE (2) DE3842381A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628509A1 (fr) * 1993-05-12 1994-12-14 Murata Kikai Kabushiki Kaisha Méthode de bobiner et appareil pour bobineuse automatique
EP0699615A1 (fr) * 1994-08-30 1996-03-06 SAVIO MACCHINE TESSILI S.r.l. Procédé et équipement pour éliminer du fil défectueux enroulé sur la bobine de dévidage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW258761B (fr) * 1993-10-19 1995-10-01 Barmag Barmer Maschf
DE19848881A1 (de) * 1998-10-23 2000-04-27 Schlafhorst & Co W Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine
DE19913736A1 (de) * 1999-03-26 2000-09-28 Schlafhorst & Co W Verfahren zum Verarbeiten von Spinnspulen in einem Spulautomaten
JP2013154993A (ja) * 2012-01-30 2013-08-15 Murata Machinery Ltd 巻取装置
DE102012102576A1 (de) * 2012-03-26 2013-09-26 Maschinenfabrik Rieter Ag Verfahren zur Garnüberwachung
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

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Publication number Priority date Publication date Assignee Title
CH313151A (de) * 1950-05-22 1956-03-31 Reiners Walter Ing Dr Verfahren und Vorrichtung zur Überwachung der Störhäufigkeit selbsttätiger Spulmaschinen
US2736505A (en) * 1952-01-10 1956-02-28 Reiners Thread winding apparatus
US2752103A (en) * 1952-02-04 1956-06-26 Reiners Walter Thread-fault responsive control apparatus for coil winding machines
NL82768C (fr) * 1952-02-09
US3511448A (en) * 1968-03-13 1970-05-12 Leesona Corp Yarn inspection apparatus
CH516468A (de) * 1970-05-28 1971-12-15 Loepfe Ag Geb Vorrichtung zum Auswerten der Spulgeschwindigkeit an Kreuzspulmaschinen
CH517040A (de) * 1970-12-17 1971-12-31 Loepfe Ag Geb Vorrichtung zur Kontrolle der Knotenbildung an einer Fadenspulmaschine
DE2334389A1 (de) * 1973-07-06 1975-01-23 Leuze Electronic Kg Anordnung an verarbeitungsmaschinen von faeden und fasern zur beeinflussung der liefergeschwindigkeit
DE2653233C2 (de) * 1976-01-22 1978-09-07 Kenk, Erhard, 7143 Vaihingen Vorrichtung zum Feststellen und Registrieren der Fadenungleichmäßigkeiten an Spulstellen von Textilmaschinen
US4269368A (en) * 1978-11-07 1981-05-26 Owens-Corning Fiberglas Corporation Microprocessor controlled product roving system
JPS57184072A (en) * 1981-04-13 1982-11-12 Murata Mach Ltd Doffing controller in automatic winders
JPS5986562A (ja) * 1982-06-21 1984-05-18 Aichi Boseki Kk 糸結び監視装置の作動を監視する方法と装置
JPS61178375A (ja) * 1985-01-31 1986-08-11 Murata Mach Ltd 精紡機の管理システム
JPS62255366A (ja) * 1986-04-25 1987-11-07 Murata Mach Ltd 糸欠点検出方法
DE3714320C3 (de) * 1986-04-29 2000-01-27 Murata Machinery Ltd Verfahren und Vorrichtung zum Steuern der Fadenspannung in einem Spulautomaten
DE3644433C2 (de) * 1986-12-24 1995-10-19 Schlafhorst & Co W Verfahren und Vorrichtung zum Steuern einer Spulstelle einer Kreuzspulen herstellenden Textilmaschine
JPS63212681A (ja) * 1987-02-26 1988-09-05 Murata Mach Ltd 自動ワインダ−における巻取制御方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628509A1 (fr) * 1993-05-12 1994-12-14 Murata Kikai Kabushiki Kaisha Méthode de bobiner et appareil pour bobineuse automatique
EP0699615A1 (fr) * 1994-08-30 1996-03-06 SAVIO MACCHINE TESSILI S.r.l. Procédé et équipement pour éliminer du fil défectueux enroulé sur la bobine de dévidage

Also Published As

Publication number Publication date
DE3842381A1 (de) 1990-06-28
EP0373324A3 (fr) 1991-10-30
EP0373324B1 (fr) 1993-08-04
JPH02261778A (ja) 1990-10-24
US5022596A (en) 1991-06-11
JP2688265B2 (ja) 1997-12-08
DE58905153D1 (de) 1993-09-09

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