EP1900670A1 - Verbessertes Garnwickelverfahren auf Paketen mit Vorrichtungen zur Einzelfadenführung - Google Patents

Verbessertes Garnwickelverfahren auf Paketen mit Vorrichtungen zur Einzelfadenführung Download PDF

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Publication number
EP1900670A1
EP1900670A1 EP07115911A EP07115911A EP1900670A1 EP 1900670 A1 EP1900670 A1 EP 1900670A1 EP 07115911 A EP07115911 A EP 07115911A EP 07115911 A EP07115911 A EP 07115911A EP 1900670 A1 EP1900670 A1 EP 1900670A1
Authority
EP
European Patent Office
Prior art keywords
thread
package
thread guide
cutting
collection
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Withdrawn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
EP07115911A
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English (en)
French (fr)
Inventor
Giorgio Colomberotto
Luciano Bertoli
Demetrio Claut
Roberto Badiali
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.)
Savio Macchine Tessili SpA
Original Assignee
Savio Macchine Tessili SpA
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 Savio Macchine Tessili SpA filed Critical Savio Macchine Tessili SpA
Publication of EP1900670A1 publication Critical patent/EP1900670A1/de
Withdrawn legal-status Critical Current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
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2821—Traversing devices driven by belts or chains
    • 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
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2884—Microprocessor-controlled traversing devices in so far the control is not special to one of the traversing devices of groups B65H54/2803 - B65H54/325 or group B65H54/38
    • B65H54/289—Microprocessor-controlled traversing devices in so far the control is not special to one of the traversing devices of groups B65H54/2803 - B65H54/325 or group B65H54/38 stopping the yarn guide in a predetermined position
    • 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
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • 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 present invention refers to the collection of the yarn produced or processed by textile machines for winding on packages.
  • the packages have frustoconical or right cylindrical shape, and the collection of the yarn in a package is conducted on tubes borne by a package-carrier arm and supported on a rotating driving roller thereof, drawing the yarn and winding it thereon.
  • Such practice permits winding the yarn at a substantially constant linear speed, independent of the increasing size of the package and only depending on the rotation speed of said driving roller.
  • the yarn is coiled around the rotating package, since the collection unit is equipped with a thread guide device which distributes the yarn on the outer surface of the package with axial traverse motion, along a predetermined cross angle.
  • a thread guide device which distributes the yarn on the outer surface of the package with axial traverse motion, along a predetermined cross angle.
  • the required excursion frequencies are on the order of 20-30 forward and return traverses per second, with modulation of the traversing as regards to frequency, amplitude and cross angles, commanding the traverse motion of the individual thread guide by the driving of its driving motor.
  • the times and spaces for the motion reversal must however be limited, respectively, to milliseconds and millimetres, so to give to the package the quality required by subsequent use, as regards mechanical stability and form.
  • patent EP 311.784 there is the accumulation of kinetic energy with mechanical systems by the driving of the thread guide during the middle part of its path and the release of energy to the thread guide in the motion reversal steps.
  • a thread guide method and device are described. Such device is driven associated with a closed loop flexible element which is driven by motors operated by a control unit with reciprocating motion. Such control unit controls the position of the thread guide and applies an overcurrent to the stepping motor near its reversal points, thus increasing the braking and accelerating values. It is also provided to further increase the power transmitted in the motion reversal steps with an elastic system, which is engaged and disengaged during the travel of the thread guide.
  • the technical solutions proposed in the prior art provide using electric motors operated to be moved with reciprocating motion with position detectors, for example encoders: based on their detection, the control unit of the winding unit supplies such motors with variable frequency current to obtain the strong accelerations and decelerations to be imparted to the thread guides, which are necessary for the formation of the package with good form and use characteristics.
  • Such encoders can be installed on the motor itself, on the thread guide to be moved, on the mechanical transmission of these two members, comparing their effective position with the desired position at every instant.
  • Such technical solutions are generally directed to the distribution of the winding thread on the package being formed. They are directed to keep the thread guide in motion, determining both its speed at every instant and the reversal points of its traverse motion.
  • the aim of the present invention is that of making an individual distribution process of the yarn being wound which permits improving the performances of the winder even in non-winding i.e. useful non-winding steps, during defective yarn elimination operations, which constitute the main role of the winder, in the stop steps, in the steps of unloading the completed package and starting a new package.
  • automatic winders are composed of a plurality of stations or winding units aligned along the front of the machine and equipped with common service apparatuses for feeding full bobbins thereto and unloading the empty tubes to be recycled.
  • the winding unit is illustrated in its essential components, omitting those not directly affected by the present invention, in the figures 1, where figure 1A reports the complete side view and figure 1B the front view of its upper part.
  • the feed bobbin 1 is unwound by drawing the thread 2.
  • the thread 2 passes from the unwinder group which comprises guide members 3 of the thread 2, the thread presence sensor or detector 4 and the thread tensioner 5, generally consisting of a pair of facing plates which press the unwinding yarn between them with adjusted and controlled pressure.
  • the splicer 6 to which the skein ends of the thread to be spliced are brought by suction mouths 9 and 10, upon interruptions of the thread due to its breaking or due to the intervention of the clearer 11, which is found just downstream of the splicer.
  • the wound thread is collected in the package 12, which is driven into rotation by the roller 13, on which it lies supported by the package-carrier arm 14.
  • the distribution of the thread 2 on the package 12 is carried out by the thread guide 15 with a specific cross angle to obtain the formation of the package with the desired characteristics and size.
  • the driving of the thread guide 15 is carried out with the motor M 15 with predetermined speed controlled at every instant, i.e. as regards the position, excursion amplitude, speed and axial coordinates of the thread guide end stops.
  • the driving with the roller 13 is carried out with the motor M 13 with predetermined speed and substantially independent of the size of the package being formed; it draws the thread 2, unwinding it at high rotation speed from the bobbin 1, which instead is held from moving on an underlying positioning pin.
  • the functioning of the winding unit is determined by the governing unit 20, which comprises all control and drive functions of its members. It also comprises a unit 20' which frequency drives the motor M 15 of the thread guide 15, for the determination of its traversing motion, both as regards instantaneous speeds and axial coordinates of the motion reversal points, operating traverse strokes of the amplitude and frequency commanded each time by its governing unit.
  • the winding generally consists in unwinding the supply yarn and in the clearing of its sections which are defective due to mechanical consistency or size.
  • the yarn 2 In its passage from the bobbin 1 to the package 12, the yarn 2 is controlled by the clearer 11, which detects its size defects, both in the transverse and length dimensions.
  • the clearer 11 requires and commands the cutting of the thread every time the detected size of the thread 2 does not fall within the range of acceptable thread sizes; such information is pre-set in the clearer 11 at the start of each specific winding processing, according to a more or less rigorous calibration depending on the desired size uniformity of the yarn being wound.
  • the cutting member of the thread is incorporated in the same clearer 11, or it can be separated but commanded directly thereby. In figure 1, the cutting group is shown separated as scissors 7, just above the sensor 4 of the thread and below the thread tensioner 5.
  • the governing unit 20 comprises and commands a unit 20" which contains the command and control program for the thread reattachment process, through the connections with the members therein involved (shown as an example with dashed lines), according to a standard operations sequence or successive steps.
  • the suction mouth 9 on the side of the bobbin is susceptible to angular movement ⁇ which brings the mouth to collect the skein end of the thread 2 from the clearing group and bring it to the splicer 6.
  • the suction mouth 10 on the side of the package is susceptible to the angular movement ⁇ which brings the suction nozzle of the mouth itself first to pick up the skein end of the thread 2 from the package 12 and then bring it to the splicer 6.
  • the present invention provides that in the governing unit 20, a connection is made between its components units 20' and 20", coordinating their function. Regarding the interventions of the clearer, such coordination consists of subordinating the cutting of the thread 2 to the axial position of the thread guide 15. Such coordination is made on one side in the delay of the thread cutting by the unit 20" and on the other side in the command to the unit 20' to stop the thread guide 15 in a central position of the package 12, allowing a certain number of coils to wind overlapped before the cutting command: the skein end of the cut thread is safely wound on the body of the package in a central position and can be easily collected and unwound.
  • the cutting and splicing process of the thread occurs, for example, with the following sequence.
  • the clearer 11 detects a defect of the thread 2 which slides between bobbin 1 and package 12, and requests the governing unit 20 consent to proceed with the cutting.
  • the governing unit 20 commands its unit 20' to bring the thread guide 15 into a central position of the package 12 and stop it, detects that the thread guide has been brought into such position and is stopped, and then gives the consent to its unit 20" to proceed to the cutting with the group 7 and to the consequent reattachment process of the two skein ends.
  • Such process permits, in the case of splicing the thread following a cut thereof for the elimination of a defect, a reattachment process with a higher probability of success.
  • the junction cycle repetitions and operator interventions are significantly reduced. It is also possible to simplify the structure of the mouth 10.
  • the "package end” process is rather similar to the preceding process and occurs, for example, with the following sequence.
  • the governing unit 20 detects the attainment of the desired length of the wound thread, commands its unit 20' to bring the thread guide 15 into a central position of the package 12 and to stop, detects that the thread guide has been brought into such position and is stopped, and then gives the command to its unit 20" to proceed to the cutting and stopping of the package 12 and roller 13, thus beginning the tube change process and the new package start process.
  • the coordination provided with the present invention consists in subordinating the starting of the rotating driving roller of the new package to the axial position of the thread guide 15.
  • Such coordination is achieved on the one hand in the command to the unit 20' to bring the thread guide 15, which is found in a central thread cutting position, into an axial position towards the base of the tube and situated externally with respect to its normal laying excursion of the thread on the package, and stopping it here, and on the other hand then starting the driving in rotation of the new tube with the thread guide in external position, allowing a certain number of parallel coils to wind with thread guide stopped before the thread guide is brought back to its normal traverse excursion range to begin the winding of the new package: the initial head of the thread of the package consists of a reserve of parallel coils on the base of the cone which is available for subsequent processing.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Textile Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP07115911A 2006-09-15 2007-09-07 Verbessertes Garnwickelverfahren auf Paketen mit Vorrichtungen zur Einzelfadenführung Withdrawn EP1900670A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20061763 ITMI20061763A1 (it) 2006-09-15 2006-09-15 Procedimento perfezionato di avvolgimento del filato in rocca con dispositivi guidafili individuali

Publications (1)

Publication Number Publication Date
EP1900670A1 true EP1900670A1 (de) 2008-03-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07115911A Withdrawn EP1900670A1 (de) 2006-09-15 2007-09-07 Verbessertes Garnwickelverfahren auf Paketen mit Vorrichtungen zur Einzelfadenführung

Country Status (3)

Country Link
EP (1) EP1900670A1 (de)
CN (1) CN101143665A (de)
IT (1) ITMI20061763A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101837909A (zh) * 2009-02-21 2010-09-22 欧瑞康纺织有限及两合公司 操作制造交叉卷绕筒子的纺织机的工位的方法和装置以及执行该方法的工位

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5398462B2 (ja) * 2009-10-15 2014-01-29 Ｔｍｔマシナリー株式会社 糸搬送装置
JP2011251878A (ja) * 2010-06-02 2011-12-15 Sumitomo Electric Ind Ltd 光ファイバの巻取方法
CN103221324B (zh) * 2010-11-20 2014-12-31 欧瑞康纺织有限及两合公司 用于卷绕长丝的设备
DE102015222045B3 (de) * 2015-11-10 2017-02-02 SSM Schärer Schweiter Mettler AG Fadenverlegevorrichtung
DE102016108423A1 (de) * 2016-05-06 2017-11-09 Rieter Ingolstadt Gmbh Verfahren zum Handhaben eines Fadenendes und Spulstelle
JP2018065658A (ja) * 2016-10-19 2018-04-26 村田機械株式会社 糸巻取装置及びパッケージの回転停止方法
CN110167857B (zh) * 2017-01-13 2020-11-06 村田机械株式会社 纱线切断控制装置、纱线监视装置和纱线卷取装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4025696A1 (de) * 1990-08-14 1992-02-20 Schlafhorst & Co W Verfahren und einrichtung zum unterbrechen des einer kreuzspule zugefuehrten garns
EP0631962A2 (de) 1993-05-28 1995-01-04 SAVIO MACCHINE TESSILI S.r.l. Verbessertes Spulenwickelverfahren und Spulmaschinen zu dessen Durchführung
DE9411247U1 (de) 1994-07-12 1995-11-09 Saurer Allma Gmbh Vorrichtung zum Aufwickeln einer Fadenreserve an einer Zwirnmaschine
EP0916612A2 (de) * 1997-11-14 1999-05-19 B a r m a g AG Vorrichtung und Verfahren zum Führen und Schneiden eines kontinuierlich zulaufenden Fadens
DE10022376A1 (de) * 1999-05-14 2000-12-14 Barmag Barmer Maschf Verfahren zum Aufwickeln eines kontinuierlich zulaufenden Fadens
DE102004052564A1 (de) 2004-10-29 2006-05-04 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4025696A1 (de) * 1990-08-14 1992-02-20 Schlafhorst & Co W Verfahren und einrichtung zum unterbrechen des einer kreuzspule zugefuehrten garns
EP0631962A2 (de) 1993-05-28 1995-01-04 SAVIO MACCHINE TESSILI S.r.l. Verbessertes Spulenwickelverfahren und Spulmaschinen zu dessen Durchführung
DE9411247U1 (de) 1994-07-12 1995-11-09 Saurer Allma Gmbh Vorrichtung zum Aufwickeln einer Fadenreserve an einer Zwirnmaschine
EP0916612A2 (de) * 1997-11-14 1999-05-19 B a r m a g AG Vorrichtung und Verfahren zum Führen und Schneiden eines kontinuierlich zulaufenden Fadens
DE10022376A1 (de) * 1999-05-14 2000-12-14 Barmag Barmer Maschf Verfahren zum Aufwickeln eines kontinuierlich zulaufenden Fadens
DE102004052564A1 (de) 2004-10-29 2006-05-04 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101837909A (zh) * 2009-02-21 2010-09-22 欧瑞康纺织有限及两合公司 操作制造交叉卷绕筒子的纺织机的工位的方法和装置以及执行该方法的工位
CN101837909B (zh) * 2009-02-21 2013-01-23 欧瑞康纺织有限及两合公司 操作制造交叉卷绕筒子的纺织机的工位的方法和装置以及执行该方法的工位

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Publication number Publication date
ITMI20061763A1 (it) 2008-03-16
CN101143665A (zh) 2008-03-19

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