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WO2004048651A1 - Dispositif de filage a chaud et d'enroulement de plusieurs fils - Google Patents

Dispositif de filage a chaud et d'enroulement de plusieurs fils Download PDF

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Publication number
WO2004048651A1
WO2004048651A1 PCT/EP2003/012456 EP0312456W WO2004048651A1 WO 2004048651 A1 WO2004048651 A1 WO 2004048651A1 EP 0312456 W EP0312456 W EP 0312456W WO 2004048651 A1 WO2004048651 A1 WO 2004048651A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread
threads
sensors
godet
winding
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.)
Ceased
Application number
PCT/EP2003/012456
Other languages
German (de)
English (en)
Inventor
Helmut Weigend
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
Saurer GmbH and Co KG
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 Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Priority to EP03772317A priority Critical patent/EP1563128A1/fr
Publication of WO2004048651A1 publication Critical patent/WO2004048651A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D13/00—Complete machines for producing artificial threads
    • 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
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
    • B65H63/0322—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators using capacitor sensing means, i.e. the defect signal is a variation of impedance
    • 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
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
    • B65H63/0327—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators using piezoelectric sensing means
    • 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
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/036—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00—Collecting the newly-spun products
    • 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 device for melt spinning and winding several threads according to the preamble of claim 1.
  • the threads are formed in parallel next to each other by combining a large number of freshly spun filaments.
  • the filaments are extruded through a spinning device arranged side by side. After the filaments have cooled, the filament bundle is joined by a preparation device. The cohesion between the filaments is achieved by a preparation agent.
  • the threads are then treated to adjust certain physical properties.
  • the threads are guided at least over a godet unit.
  • each of the threads is wound into bobbins in parallel winding units of a winding device.
  • the threads are brought together after the melt spinning to a small thread treatment distance.
  • the threads are guided in parallel with the treatment distance from one another via one or more godet units.
  • Thread guiding devices are provided in the thread path between the spinning device and the winding device. Devices of this type have proven particularly useful for melt spinning and winding up a large number of threads of 10, 12 or 16 threads. To monitor the production process, such devices have thread break sensors which are assigned to the threads. Such a device is known, for example, from US Pat. No. 6,210,143, in which the thread break sensors are directly assigned to the winding units of the winding device. The thread break sensors serve to signal a thread break of one of the threads of a control device, so that the melt spinning process can be interrupted and major consequential damage caused by sympathetic breaks in the neighboring threads and winding formations are avoided.
  • the known device has the disadvantage that the arrangement of the thread break sensors, in particular for monitoring a large number of threads, requires a corresponding large number of interfaces and signal lines and thus has a considerable susceptibility to faults.
  • the thread break sensors are arranged as a structural unit in one plane in the area of the godet unit, in which the threads with a distance of max. 20 mm are guided to each other.
  • the yarn break sensors are thus shifted within the spinning line into a zone in which the yarns are guided close to each other and have not yet been spread out, or at the very beginning, to be continued in the winding device.
  • the invention is based on the knowledge that, in the event of thread breaks in the winding stations, the subsequent winder formation essentially only occurred on the inlet side of a godet unit.
  • the arrangement according to the invention of the thread break sensors on the outlet side of the godet unit ensures that rapid signaling takes place even in the event of a thread break in the winding device in order to avoid the formation of winders.
  • the thread break sensors within a housing are electrically interconnected and connected together to a signal output of the housing.
  • the signal output is coupled to a control device by a signal line.
  • a large number of thread break sensors can thus be connected to the control device via a single interface.
  • the interface can preferably be designed as a plug connection.
  • an advantageous further development of the invention provides for the electrical connection of the thread break sensors to be carried out in such a way that if one of the threads breaks, a sum signal is generated and fed to the signal output.
  • the sum signal is independent of which of the sensors has signaled a thread break. All signals from the thread break sensors are added and thus form the sum signal.
  • the preferred development of the invention in which the electrical connection of the thread break sensors is designed such that if one of the threads breaks, the thread break sensor concerned assigned individual signal generated and fed to the signal output.
  • the connection between the assembly of the thread break sensors and the control device is preferably switched by a professional bus system.
  • the thread break sensors are arranged directly in the thread run of the last godets in order to guide the threads as thread guides before spreading.
  • the thread break sensors can thus be used both for monitoring the threads and for guiding the threads. Additional thread guides in the outlet area of the godet are not required. An additional possible touching and deflection of the threads can thus be avoided.
  • the thread break sensors are arranged directly in the thread run of the godet unit before the threads run out before the last godet.
  • the position in the last loop of the godets is particularly suitable for the arrangement of the thread break sensors.
  • the thread break sensors can be designed as contact sensors, optical sensors or as capacitive sensors.
  • the further development of the invention in which an evaluation electronics is provided, through which the signals of the thread break sensors can be evaluated in each case to control a preparation job of the thread and to determine a break of the thread, is particularly useful preferred embodiment of the invention.
  • capacitive measuring means the change in capacitance caused by the thread of a capacitor is detected and evaluated.
  • Fig. 1 shows schematically an embodiment of the device according to the invention
  • Fig. 2 shows schematically an embodiment of a structural unit consisting of several thread break sensors
  • Fig. 3 schematically shows another embodiment of a structural unit consisting of several thread break sensors
  • Fig. 4 schematically shows another embodiment of a device for process monitoring
  • Fig. 1 an embodiment of the device according to the invention is shown schematically.
  • the device consists of a spinning device 2, a godet unit 3 arranged below the spinning device 2 and a winding device 14 arranged downstream of the godet unit 3.
  • the spinning device 2 is designed, for example, with three spinning stations in order to spin three synthetic threads in parallel next to one another.
  • the spinning device 2 has a spinning pump 4, which can be designed, for example, as a gear pump.
  • the spinning pump 4 is driven by the pump drive 21.
  • the pump drive 21 is coupled to a control device 20.
  • the spinning pump 4 is designed as a multiple pump and supplies in parallel several spinnerets 5 at the same time.
  • Each of the spinnerets 5 has a nozzle plate 6 on the underside, through which a plurality of filament strands 7 are extruded.
  • the filament strands 7 pass through a cooling shaft 8 arranged below the spinnerets 5.
  • a cooling medium preferably a blown-in cooling air, is directed onto the filament strands 7, so that the filament strands 7 are cooled within the cooling shaft 8.
  • the filament strands 7 are brought together into a thread 1 by a preparation device 9 and the thread guides 34.
  • the preparation device 9 is designed as a roller preparation, in which the preparation roller is driven by a roller drive 10, so that the preparation roller, which is partially immersed in a liquid bath, rotates uniformly and the threads 1 guided on its surface are wetted with a preparation agent contained in the bath.
  • the godet unit 3 consists of a take-off godet 11 and a stretch godet 22.
  • the take-off godet 11 is a freely rotatable overflow roller 12 and Stretching godet 22 assigned to the freely rotatable overflow roller 23, so that the threads 1 are guided in parallel in several loops over the godets 11 and 22.
  • the take-off godet 11 is driven by the godet drive 13 and the extended godet 22 by the godet drive 24.
  • the godet drives 13 and 24 are controlled by the control device 20.
  • a differential speed is set between the take-off godet 11 and the draw godet 22 in order to stretch the threads.
  • the winding device 14 is arranged below the godet unit 3, by means of which the threads 1 are wound into a bobbin 15 after the treatment.
  • the winding device 14 has a total of three winding points 25 arranged next to one another.
  • the coils 15 are in the winding stations 25 held on a cantilevered spindle 16.
  • the spindle 16 is driven via a winding drive 1-7 in such a way that the threads 1 are wound onto the bobbin 15_ at a constant winding speed.
  • the winding drive 17 is connected to the control device 20.
  • On the circumference of the bobbin 15 is a pressure roller 19 partially wrapped around the threads.
  • a structural unit 26 with a plurality of integrated thread break sensors 27 is arranged in the outlet area of the stretch godet 22.
  • the structure of the assembly 26 and the arrangement of the yarn break sensors 27 within the assembly will be described in more detail later.
  • the thread break sensors 27 are coupled to the control device 20 via a signal line 28.
  • a thread collecting device 33 is arranged in the thread run, which can be controlled via the control device 20.
  • the thread collecting device 33 has means for collecting, cutting and removing the thread sheet.
  • the threading device is known from EP 1 049 823, so that reference can be made to the cited document at this point.
  • the threads 1 are monitored by the thread break sensors 27 immediately after the stretch godet 22 has passed.
  • the distances of the threads 1 from one another are determined by a treatment distance B which is set to guide the threads 1.
  • the treatment distance B depends on the number of threads and on the length of occupation of the godets 11 and 22 and on the number of wraps of the threads on the godets 11 and 22. In cases where, for example, up to 12 threads in several loops are passed over a godet, treatment distances of less than 6 mm are set. In such cases, the yarn break sensors are preferably placed in an initial area of the yarn sheet spread after the godet has passed.
  • the threads 1 are spread from the treatment distance B to the winding point distance A.
  • the thread guide required for spreading the threads 1 is carried out directly by the structural unit 26.
  • the spool distance A depends on the spool width and is in the range of 85 to 250 mm.
  • each winding unit 25 is preceded by a head thread guide 39, so that the spreading of the threads 1 from the treatment distance B to the winding unit distance A is effected by the assembly 26 and the head thread guides 39.
  • the sensor signal of the thread break sensor is converted into a control command for the thread collecting device 33.
  • the thread collecting device 33 bundles and cuts the threads and leads them to a yarn container via suction.
  • the pump drive 21 is switched over by the control device 20 to a creep speed.
  • the creep speed of the spinning pump 4 is selected such that a minimum throughput in the spinnerets 5 is maintained.
  • the process variant has the advantage on the one hand that an upstream melt source - for example an extruder - does not have to be switched off and on the other hand no cooling of the spinnerets occurs.
  • an upstream melt source - for example an extruder - does not have to be switched off and on the other hand no cooling of the spinnerets occurs.
  • the melt-carrying parts are continuously heated by heating devices.
  • FIG. 2 schematically shows the structure of the structural unit 26 from FIG. 1 which contains the thread break sensors 27.
  • the thread break sensors 27 are each formed by a guide groove 36 and a capacitor 30 enclosing the guide groove 36.
  • a total of three guide grooves 36 and thus three yarn break sensors 27 are formed in parallel next to one another in the housing 29.
  • the threads 1 are guided within the guide groove 36.
  • the groove walls of the guide groove 36 are preferably provided with ceramic inserts.
  • adjacent thread break sensors 27 are each shielded by a shield plate 35 in such a way that the adjacent capacitors 30 do not influence one another.
  • the capacitors 30 and the yarn break sensor 27 are electrically connected to one another via a link 31 within the housing 29.
  • the link 31 is constructed such that a sum signal is generated.
  • the sum signal is led via a signal output 32 through the connected signal line 28 to the control device, not shown here.
  • FIG. 3 shows a further exemplary embodiment of a structural unit 26, such as would be used, for example, in the device shown in FIG. 1.
  • the thread break sensors 27 are designed as contact sensors, in which a piezo element 37 bears in the base of the guide groove 36.
  • the threads 1 are guided with a loop around the piezo element 37, so that a contact force acting on the piezo elements 37 arises.
  • the guide 36 is designed in accordance with the previous embodiment.
  • the piezo elements 37 are connected to the link 31, in each of which an individual signal assigned to the position is generated and fed to the signal line 28 via the signal output 32. This means that each thread break can be assigned to the respective spinning position, which can be particularly useful for locating and eliminating the causes of errors.
  • FIG. 4 shows a further exemplary embodiment of a device for process monitoring with a structural unit with a plurality of thread broach sensors 27, as would be used, for example, in the device shown in FIG. 1.
  • the structure of the assembly 26 is identical to the arrangement shown in FIG. 2. In this respect, reference is made to the previous description of FIG. 2 and only the differences are shown at this point.
  • the thread break sensors 27 are electrically coupled to one another in such a way that individual signals of the thread break sensors 27 in question can be generated and output via the signal output 32.
  • the individual signals are first converted into a Evaluated to electronic controller 38 whether the signaled with the single change in signal state has a ⁇ yarn break or a change in spin finish the yarn as the cause.
  • the evaluation electronics 38 can be integrated in the control device 20 or else in the structural unit 26.
  • the evaluation electronics 38 are advantageously connected directly to the control device 20, so that appropriate measures can be taken as a function of the evaluation. For example, if a too small preparation order is detected, a signal could be generated on one of the threads, which would trigger a check and check of the preparation device.
  • the structure of the embodiment of the device according to the invention shown in FIG. 1 is exemplary and can be replaced by any configuration of the spinning device, the godet unit and the winding device. It is essential for the invention that in the transition area from the godet unit to the winding device the thread break sensors are directly assigned to the godet unit in order to obtain a compact and high integration of the thread sensors which are only assigned to the control device via a signal output with a signal line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un dispositif de filage à chaud et d'enroulement de plusieurs fils (1), dans lequel les fils (1) sont filés dans un système de filage (2), traités dans une unité de galettes (3) et enroulés sous forme de bobines (15) dans un système d'enroulement (14). Le contrôle du processus est effectué à l'aide de plusieurs détecteurs de rupture de fil (27) disposés entre l'unité de galettes (3) et le système d'enroulement (14). Après déroulement d'une dernière galette (22) de l'unité de galettes (3), lesdits fils (1) sont écartés pour l'entrée dans le système d'enroulement (14). L'invention vise à obtenir une intégration élevée et une construction compacte des détecteurs de rupture de fil (27). A cet effet, les détecteurs de rupture de fil (27) sont disposés en tant qu'unité (26) dans un plan, dans une zone de l'unité de galettes (3) dans laquelle les fils (1) sont guidés à un écart maximal de 20 mm l'un par rapport à l'autre.
PCT/EP2003/012456 2002-11-23 2003-11-07 Dispositif de filage a chaud et d'enroulement de plusieurs fils Ceased WO2004048651A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03772317A EP1563128A1 (fr) 2002-11-23 2003-11-07 Dispositif de filage a chaud et d'enroulement de plusieurs fils

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10254712.2 2002-11-23
DE10254712 2002-11-23

Publications (1)

Publication Number Publication Date
WO2004048651A1 true WO2004048651A1 (fr) 2004-06-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/012456 Ceased WO2004048651A1 (fr) 2002-11-23 2003-11-07 Dispositif de filage a chaud et d'enroulement de plusieurs fils

Country Status (3)

Country Link
EP (1) EP1563128A1 (fr)
CN (1) CN1714178A (fr)
WO (1) WO2004048651A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20100065A1 (it) * 2010-04-01 2011-10-02 Daniele Balestreri Metodo e dispositivo per rilevare la rottura di una o più bave in processi di filatura di fibre sintetiche

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2129817B1 (fr) * 2007-03-23 2012-08-01 Oerlikon Textile GmbH & Co. KG Procédé et dispositif de filature par extrusion, de traitement et d'enroulement d'un fil synthétique
EP2510139B1 (fr) * 2009-12-11 2014-02-19 Oerlikon Textile GmbH & Co. KG Dispositif de commande pour un dispositif de filage a l'etat fondu
CN103866414B (zh) * 2012-12-11 2017-06-23 日本Tmt机械株式会社 纺丝牵引装置
CN108190641B (zh) * 2018-01-26 2024-06-04 联亚智能科技（苏州）有限公司 一种橡胶部件自动缠绕机组
CN110846727B (zh) * 2019-12-26 2025-06-13 苏州金纬化纤装备有限公司 自动感应型纺丝牵伸恒温箱

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07101633A (ja) * 1993-10-05 1995-04-18 Murata Mach Ltd 紡糸巻取機
JPH1183652A (ja) * 1997-09-04 1999-03-26 Toray Eng Co Ltd 集合型張力検出センサー
WO1999037835A1 (fr) * 1998-01-24 1999-07-29 Barmag Ag Metier a filer
DE10309966A1 (de) * 2002-03-27 2003-10-09 Barmag Barmer Maschf Verfahren zur Steuerung einer Spinnvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07101633A (ja) * 1993-10-05 1995-04-18 Murata Mach Ltd 紡糸巻取機
JPH1183652A (ja) * 1997-09-04 1999-03-26 Toray Eng Co Ltd 集合型張力検出センサー
WO1999037835A1 (fr) * 1998-01-24 1999-07-29 Barmag Ag Metier a filer
EP1049823A1 (fr) * 1998-01-24 2000-11-08 B a r m a g AG Metier a filer
DE10309966A1 (de) * 2002-03-27 2003-10-09 Barmag Barmer Maschf Verfahren zur Steuerung einer Spinnvorrichtung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 07 31 August 1995 (1995-08-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20100065A1 (it) * 2010-04-01 2011-10-02 Daniele Balestreri Metodo e dispositivo per rilevare la rottura di una o più bave in processi di filatura di fibre sintetiche
WO2011121626A1 (fr) * 2010-04-01 2011-10-06 Balestreri, Daniele Procédé et dispositif de détection de rupture d'au moins un filament dans des processus de filage de fibres synthétiques

Also Published As

Publication number Publication date
EP1563128A1 (fr) 2005-08-17
CN1714178A (zh) 2005-12-28

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