WO2018172077A1 - Procédé pour la connexion et la séparation d'une nappe de fils ainsi qu'un dispositif de filage par fusion - Google Patents

Procédé pour la connexion et la séparation d'une nappe de fils ainsi qu'un dispositif de filage par fusion Download PDF

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Publication number
WO2018172077A1
WO2018172077A1 PCT/EP2018/055609 EP2018055609W WO2018172077A1 WO 2018172077 A1 WO2018172077 A1 WO 2018172077A1 EP 2018055609 W EP2018055609 W EP 2018055609W WO 2018172077 A1 WO2018172077 A1 WO 2018172077A1
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WO
WIPO (PCT)
Prior art keywords
guide
bundle
thread guide
thread
threads
Prior art date
Application number
PCT/EP2018/055609
Other languages
German (de)
English (en)
Inventor
Hansjörg MEISE
Matthias EVERTZ
Denis Bauer
Original Assignee
Oerlikon Textile Gmbh & 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 Oerlikon Textile Gmbh & Co. Kg filed Critical Oerlikon Textile Gmbh & Co. Kg
Priority to DE112018001487.8T priority Critical patent/DE112018001487A5/de
Publication of WO2018172077A1 publication Critical patent/WO2018172077A1/fr

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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
    • 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
    • D01D13/02—Elements of machines in combination

Definitions

  • the invention relates to a method for applying and separating a yarn sheet in a melt spinning process according to the preamble of claim 1 and to a melt spinning apparatus according to the preamble of claim 9.
  • the threads In melt spinning synthetic threads, it is common for the threads to be formed by combining a plurality of freshly spun filaments.
  • the filaments are extruded through juxtaposed spinnerets located on a bottom surface of a spinneret. After the filaments have cooled, the filament bundles produced per spinneret are combined to form a thread by a collection thread guide.
  • the collective thread guides are preferably arranged centrally to the spinnerets.
  • the collection thread guides are arranged with a spin pitch defined by the spinnerets.
  • the thread pitch desired for the removal and treatment of the threads is substantially smaller than the spinning pitch.
  • a Separierfaden discussing which is directly upstream of the godets.
  • Such a melt spinning device is known for example from WO 2006/000429 AI.
  • the threads must be threaded into the Separierfadensammlung at a process start or a process interruption to obtain the predetermined pitches for guiding the yarn sheet on the godets.
  • the application and separation of the threads is carried out with the aid of a suction injector, which sucks in the freshly extruded threads and continuously feeds them to a yarn waste container during the application process.
  • a Hilfsseparierfadenraising is used, which is associated with the Separierfaden concerned stationary.
  • the Hilfsseparierfadenraising forms an excellent contact edge, in which a plurality of slot-shaped openings are formed side by side. The openings are formed side by side with a relatively small thread pitch, the slots in the Hilfsseparierfaden inhabit open into a plurality of guide means of Separierfaden liess.
  • the guide means of the separation yarn guide have a thread spacing required for guidance on the godet.
  • the filaments guided in the suction injector can be applied at a relatively short distance to the suction nozzle of the suction injector via the contact edge of the auxiliary separating thread guide.
  • the threads slide automatically into the guide means of the separating thread guide.
  • Another object of the invention is to provide a generic method for applying and separating a yarn sheet and a melt spinning device of the generic type, which is particularly suitable for melt spinning a larger number of threads.
  • the invention is based on the recognition that length and distance ratios can be determined when lines converge to a convergence point due to the beam geometry. As far as the invention makes use of a line convergence of threads, to try to create and separate a crowd of threads.
  • the inventive method is thus based on the fact that the threads with the suction injector previously inserted into a bundle thread guide to form a thread convergence become. Then a relative movement transversely to the thread running direction can be carried out between the bundle thread guide and the separating thread guide or the bundle thread guide and an auxiliary separating thread guide at a predetermined vertical distance from one another in order to guide the threads into the guide means of the separating thread guide.
  • the threads are here clamped between the collecting thread guides and the bundle thread guide and form a stable threadline within the thread convergence.
  • the distances between the threads in the parallel to the collecting thread guides spanned guide levels are constant to each other.
  • the yarn sheet can be transferred by a simple relative movement transversely to the yarn sheet in the guide means of Separierfaden inhabit.
  • the separation and transfer of the group of threads can preferably be carried out in a simple manner with a method variant in which the relative movement between the bundle thread guide and the Separierfadenraising is performed by a movement of the bundle thread guide, so that the threads are passed with the thread pitch between them the Separierfadenide.
  • a predetermined height distance between the bundle thread guide and the Separierfadenbodiment is set.
  • the method variant is particularly advantageous, in which the separation of the threads is performed by the Hilfsseparierfaden concerned.
  • the Relative movement between the bundle thread guide and the auxiliary separating thread guide preferably carried out by a movement of the Hilfsseparierfaden inhabits.
  • the predetermined height distance between the Hilfssseparierfaden inhabit and the bundle thread guide is respected.
  • the Hilfsseparierfadenising can preferably lead to an intermediate position in which the yarn sheet is detected and separated and is led out of the bundle thread guide.
  • the use of the auxiliary separating thread guides also has the advantage that an extruded group of threads with uneven spinning division is detected and separable.
  • the method variant is preferably carried out, in which the bundle thread guide is guided from a rest position to a contact position before starting a process.
  • the bundle thread guide can be held in a rest position that does not disturb the threadline. Only in the event that a new creation and separation of the yarn sheet is required, the bundle thread guide is guided to its application position.
  • the inventive method is independent of the leadership of Sauginjektors.
  • the suction injector may be operated by an operator or by an operator be guided. It is essential here that the bundle of threads is bundled by the suction injector in the bundle thread guide.
  • the melt spinning device has a bundle thread guide in a region between the separating yarn guide and the godets, which can be adjusted between a rest position without thread guide and a contact position, wherein a thread convergence point for merging all the threads is formed in the contact position.
  • the melt spinning device essentially requires only one movable bundle thread guide in order to be able to perform the application and separation as quickly and precisely as possible at the beginning of a process or after a process interruption.
  • the development of the melt spinning device according to the invention is preferably carried out, in which the bundle thread guide in the application position is centered on the row of group thread guides in a predetermined Height distance is held to the Separierfaden concerned or Hilfsseparierfadenadult.
  • the bundle thread guide interacts with a suction injector in the application position, whereby the suction injector for the creation of the threads manages the bundle thread guide. or can be guided automatically.
  • process interruptions can advantageously be carried out automatically via an operator terminal.
  • the bundle thread guide is coupled to a movement actuator, by means of which the bundle thread guide can be guided into different positions. Basically be mentioned at this point that the movement of the bundle thread guide between the application position and the rest position can be done by a manual adjustment.
  • the development of the melt spinning device according to the invention is also advantageously used, in which the Separierfaden concerned is coupled with atecsaktor, through which the Separierfadenraising can be guided in different positions.
  • the Separierfadenraising can preferably be used to lead in a process interruption, the yarn sheet to a suction device.
  • the development of the melt spinning apparatus according to the invention is preferably carried out, in which the bundle thread guide cooperates in the application position with the Hilfsseparierfaden whatsoever, in an area between the collecting thread guides and the bundle thread guides is arranged at a predetermined height level.
  • the Hilfsseparierfaden concerned is coupled to atecsaktor, by which the Hilfsseparierfaden founded in different positions, in particular transversely to the yarn running direction is feasible.
  • the Hilfsseparierfaden concerned and the bundle thread guide are preferably arranged on a common side to the yarn path of the yarn sheet. This allows easy transfer of the yarn sheet between the bundle thread guide and the Hilfssseparierfaden arrangementser by simple relative movements transversely to the thread running direction.
  • Fig. 1.2 schematically shows a front view of a first embodiment of the device according to the invention in different operating situations
  • FIG. 2.2 is a schematic side view of the embodiment of FIGS. 1.1 and 1.2.
  • FIG. 2.2 is a schematic side view of the embodiment of FIGS. 1.1 and 1.2.
  • Fig. 3.2 shows schematically a partial plan view of the embodiment of
  • FIG. 4.3 schematically shows a front view of a further embodiment of the melt spinning device according to the invention in various operating situations.
  • Fig. 5.3 schematically shows a side view of the embodiment of the
  • FIG. 6.2 schematically a partial plan view of the embodiment of FIGS. 4.1 to 4.3
  • FIGS. 1.1 and 1.2 in FIGS. 2.1 and 2.2 and in FIGS. 3.1 and 3.3, a first exemplary embodiment of the melt spinning device according to the invention is shown schematically in different operating situations.
  • the following description applies initially to all figures insofar as no explicit reference is made to one of the figures.
  • FIGS. 1.1 and 1.2 show a front view, in FIGS. 2.1 and 2.2 a side view and in FIGS. 3.1 and 3.2 a partial plan view of the embodiment. example shown.
  • FIGS. 3.1 and 3.2 show a partial plan view of the embodiment. example shown.
  • only the relevant components of the invention of the melt spinning device are shown schematically.
  • the embodiment has a spinning beam 1, on the underside of which several spinnerets 2.1 to 2.4 are held in a row-shaped arrangement.
  • the spinning beam 1 is designed to be heatable and has a melt distribution system and a melt pump in the interior in order to supply the polymer melt supplied via a melt feed 4 to the spinnerets 2.1 to 2.4.
  • the number of spinnerets 2.1 to 2.4 held on the spinning bar 1 is shown here by way of example with four spinnerets.
  • Such spinning beams can hold a plurality of spinnerets in a single-row or multi-row arrangement. Thus, it is known to extrude per spinning position with a spinning beam more than twenty threads.
  • Each of the spinnerets 2.1 and 2.4 extrudes a plurality of filaments, which are spun as filament bundles 3.1 to 3.4.
  • the extruded through nozzle openings of the spinnerets 2.1 to 2.4 filament strands are cooled below the spinneret 1 by a cooling device not shown here.
  • the filament bundles 3.1 to 3.4 are brought together in each case to form a thread 6.1 to 6.4.
  • a collection thread guide 5.1 to 5.4 is preferably arranged centrally in each case to the spinnerets 2.1 to 2.4.
  • the filament bundle 3.1 is bundled in the collecting yarn guide 5.1 to the thread 6.1.
  • the filament bundle can be wetted or swirled by an air flow to support the cohesion of the filaments within the thread.
  • the threads 6.1 to 6.4 are subtracted after spinning by several godets 1 1.1 and 1.2 as a yarn sheet 6. These are the godets 1 1.1 and 1 1.2 each driven by a godet 12.1 and 12.2 and arranged at a distance to the collecting yarn guides 5.1 to 5.4.
  • the yarn sheet 6 of the threads 6.1 to 6.4 can be performed with the least possible thread pitch on the circumference of the godets 1 1.1 and 1.2 1.2
  • the godets 1 1.1 a separating yarn guide 7 is upstream, which has a plurality of guide 8.1 to 8.4.
  • the guide means 8.1 to 8.4 in this case form a necessary to guide the yarn sheet 6 of the threads 6.1 to 6.4 thread pitches.
  • FIGS. 1.2, 2.2 and 3.2 An operating position of the melt spinning device is shown in FIGS. 1.2, 2.2 and 3.2, in which the threads are guided parallel to each other after separation parallel to the circumference of the godets 1 1.1 and 1.2.
  • the threads are guided by the guide means 8.1 to 8.4 of the Separierfaden projects 7 in the desired thread pitch.
  • the Separierfaden investigating 7 is executed comb-shaped in this embodiment, so that the guide means 8.1 to 8.4 are each formed by guide grooves for receiving and separating the threads.
  • the exemplary embodiment has a bundle thread leader 9 in the area between the Separierfaden concerned 7 and the godet 1 1.1 on.
  • the bundle thread guide 9 is connected to a movement actuator 10 and can be guided in different positions.
  • the bundle thread guide 9 is shown in FIGS. 1.1, 2.1 and 3.1 in a contact position and in FIGS. 1.2, 2.2 and 3.2 in a rest position.
  • the bundle thread guide 9 and the Separierfadenraising 7 form between them a predetermined height distance, which is entered in Figs. 1.1 and 2.1 with the code letter H.
  • the suction injector 13 has a suction opening 14, in which the threads 6.1 to 6.4 continuously drawn together and guided to a yarn waste container, not shown here.
  • the suction injector 13 is mobile and can be guided, for example, by an operator or by an operating machine in order to apply the yarn sheet 6.
  • the yarn sheet 6 is first inserted into the bundle thread guide 9 and then performed on the circumference of the godets 1 1.1 and 1.2 1.2.
  • the bundle thread guide 9 forms a thread convergence, in which the threads run radially between the collecting thread guides 5.1 to 5.4 and the bundle thread guide 9.
  • the bundle thread guide 9 thus forms a thread convergence point.
  • the bundle thread guide 9 is preferably arranged centrally relative to the collection guide guides 5.1 and 5.4 held in a row. Due to the geometry of the beam, such a height distance is selected between the separating yarn guide 7 and the bundle thread guide 9 that the threads 6.1 to 6.4 are guided in the region of the guide means 8.1 to 8.4 with the desired thread pitch.
  • the height distance H between the bundle thread guide 9 and the Separierfadendrafting 7 is shown in Fig. 1.1 and Fig. 2.1. As can be seen from the illustration in FIG. 2.1, the application position of the bundle thread guide 9 is held offset relative to the separating thread guide 7 such that the yarn sheet of the threads 6.1 to 6.4 are guided at a distance from the separating thread guide 7.
  • the application and separation of the yarn sheet 6 can now be performed by a simple relative movement between the bundle thread guide 9 and the Separierfaden inhabit 7 transverse to the thread running direction.
  • the bundle thread guide 9 is guided by the movement actuator 10 transversely to the thread running direction of the yarn sheet 6.
  • the bundle thread guide 9 thus leaves the application position and is set back in the rest position.
  • the threads 6.1 to 6.4 of the yarn sheet 6 are automatically detected by the guide means 8.1 to 8.4 of the Separierfaden projectss 7, so that the desired thread pitch for running into the godets 1 1.1 and 1.2 is generated 1.2.
  • This changed operating situation is shown in FIGS. 1.1, 2.2 and 3.2.
  • the arrangement and guidance of the bundle thread guide 9 and the separating thread guide 7 are playable.
  • the Separierfadenising 7 is held movable and is guided by atecsaktor.
  • FIGS. 4.1 to 4.3, FIGS. 5.1 to 5.3 and FIGS. 6.1 to 6.3 a further exemplary embodiment of the melt spinning device according to the invention is shown, wherein the exemplary embodiment is shown in a plurality of operating situations during a piecing and separating operation.
  • the embodiment is substantially identical to the aforementioned embodiment, so that only the differences will be explained at this point and otherwise reference is made to the above description.
  • the separating yarn guide 7 is coupled to a movement actuator 17 and can be guided between an operating position and a collection position illustrated in the cited figures. In the collection position, the separating yarn guide 7 cooperates with a suction device 15 and with a cutting device 16.
  • the separating yarn guide 7 can be used to cut through the yarn sheet in the cutting device 16 in the case of a downstream malfunction, for example in the take-up device, and to remove it via the suction device 15.
  • the exemplary embodiment has, in addition to the bundle thread guide 9, an additional auxiliary separating thread guide 18, which is arranged in an area between the collecting thread guides 5.1 to 5.4 and the separating thread guide 7.
  • the Hilfsseparierfaden concerned 18 is held in a range in which the radially guided threads 6.1 to 6.4 between them form a larger thread pitch than the desired thread pitch on the circumference of the godets 1 1.1 and 1.2.
  • Such Hilfsseparierfaden réelle 18 are used in particular in melt spinning apparatus, in which a plurality of threads are produced in particular by so-called double-spinneret. So it is customary to produce two threads per spinneret.
  • the spinning pitch between adjacent threads is uneven.
  • the threads of a group of threads can be identified with table thread spacing to each other or even with uneven thread distances to each other after extruding detected and brought to a desired thread pitch.
  • the Hilfsseparierfadenising 18 is preferably formed by a guide plate 23.
  • Fig. 6.1 is a plan view of the guide plate 23 is shown.
  • Within the guide plate 23 a plurality of guide slots 19.1 to 19.4 are introduced, which open at a leading edge 21 and each form a thread opening.
  • the guide slots 19.1 to 19.4 each end in a guide groove 20.1 to 20.4.
  • the guide grooves 20.1 to 20.4 are arranged in a thread pitch to each other, which are identical to the thread pitch of the guide 8.1 to 8.4 of the Separierfaden lies 7.
  • the Hilfsseparierfaden discussing 18 is suitable to assemble a group of threads.
  • the openings of the guide slots 19.1 to 19.4 at the leading edge 21 each have an equal distance or different distances zuein-other.
  • the auxiliary separating thread guide 18 is coupled to a movement actuator 22 in order to be able to guide the guide plate 23 into different positions transversely to the thread run of the yarn sheet 6.
  • the bundle thread guide 9 and the Hilfsseparierfadenraising 18 cooperate to create the yarn sheet 6 of the threads 6.1 and 6.4 to the Separierfaden concerned 7 and to separate.
  • a predetermined height distance H is set for this purpose to make a separation of the yarn sheet 6.
  • the yarn sheet 6 is first received and guided by the suction injector 13.
  • the yarn sheet 6 is inserted in the bundle thread guide 9 and bündiförmig order the godet 1 1.1 and 1 1.2 out.
  • the bundle thread guide 9 is held by theincisaktor 10 in its application position.
  • the Hilfsseparierfadenêt 18 is in a rest position.
  • the separating yarn guide 7 is located in the collection position laterally next to the bundle yarn guide 9.
  • FIGS. 4.2, 5.2 and 6.2 illustrate this situation.
  • the yarn sheet 6 of the threads 6.1 to 6.4 is detected above the bundle thread guide 9 with the height distance H by the Hilfsseparierfaden founded 18 and guided over the guide slots 19.1 to 19.2 in the guide grooves 20.1 to 20.4 on the guide plate 23.
  • the height distance H between the bundle thread guide 9 and the auxiliary separating thread guide 18 is shown in FIGS. 4.2 and 5.2.
  • the Separierfadenraising 7 is now performed by the movement actuator 17 from its collection position in the operating position to take over the yarn sheet 6.
  • This situation is shown in Figs. 4.3, 5.3 and 6.3.
  • the application and separation of the yarn sheet 6 is carried out by a relative movement between the Hilfsseparierfaden concerned 18 and the Separierfaden concerned 7.
  • the Hilfsseparierfaden réelle 18 is returned by theposisaktor 22 in the opposite direction from the fishing position to the rest position.
  • the threads are detected by the guide means 8.1 to 8.4 of the separating thread guide 7.
  • the auxiliary separating yarn guide 18 progresses, the yarns slide over the guide slots 19.1 to 19.4 so that the application and separation operation is completed.
  • the geometric relationships for the arrangement of the bundle thread guide in relation to the separating thread guide or the auxiliary separating thread guide are decisive in order to use the thread convergence of the thread group during the application and separation.
  • the method according to the invention and the melt spinning apparatus according to the invention are fundamentally suitable in order to carry out the separation of the threads below the collecting thread guide by an operator or by an operator.
  • the auxiliary separating thread guide can also be controlled by a manual movement.
  • Essential here is a guidance of the Hilfsseparierfadenarguess at a certain height level in relation to the bundle thread guide.

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

Abstract

L'invention concerne un procédé pour la connexion et la séparation d'une nappe de fils dans un processus de filage par fusion ainsi qu'un dispositif de filage par fusion. Lors du filage par fusion une pluralité de fils est générée par plusieurs filières et guidée en dessous des filières au moyen de plusieurs guide-fil de regroupement. Pour extraire les fils sous forme d'une nappe de fils à travers plusieurs galettes, les fils sont reçus et guidés par un injecteur d'aspiration et placés dans une séparation de fils prédéfinie dans un guide-fil de séparation disposé en amont des galettes. Pour obtenir un transfert sûr et reproductible, la nappe de fils est placée selon l'invention dans un guide-fil de faisceau pour la formation d'une convergence de fils et transférés dans un écartement en hauteur prédéfini entre eux au guide-fil de séparation par un mouvement relatif entre le guide-fil de faisceau et le guide-fil de séparation ou le guide-fil de faisceau et un guide-fils de séparation auxiliaire. Pour ce faire, le guide-fil de faisceau peut être déplacé entre une position de repos sans guidage de fils et une position de prise pour la formation d'un point de convergence de fils.
PCT/EP2018/055609 2017-03-22 2018-03-07 Procédé pour la connexion et la séparation d'une nappe de fils ainsi qu'un dispositif de filage par fusion WO2018172077A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018001487.8T DE112018001487A5 (de) 2017-03-22 2018-03-07 Verfahren zum Anlegen und Separieren einer Fadenschar sowie eine Schmelzspinnvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017002726 2017-03-22
DE102017002726.9 2017-03-22

Publications (1)

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WO2018172077A1 true WO2018172077A1 (fr) 2018-09-27

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DE (1) DE112018001487A5 (fr)
WO (1) WO2018172077A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019000644A1 (de) 2019-01-29 2020-07-30 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zur Führung mehrerer Fäden
EP4190734A1 (fr) * 2021-12-02 2023-06-07 TMT Machinery, Inc. Appareil de rattrapage de fil filé
WO2024088823A1 (fr) * 2022-10-26 2024-05-02 Oerlikon Textile Gmbh & Co. Kg Procédé et appareil d'étalement automatique d'une pluralité de fils synthétiques au niveau d'un dispositif enrouleur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000429A1 (fr) 2004-06-29 2006-01-05 Saurer Gmbh & Co. Kg Dispositif de filage par fusion et procede pour etaler plusieurs fils multifilaments dans un dispositif de filage par fusion
DE102009021118A1 (de) * 2008-06-11 2009-12-17 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Schmelzspinnen, Abziehen und Aufwickeln mehrerer Fäden
WO2015024817A1 (fr) * 2013-08-22 2015-02-26 Oerlikon Textile Gmbh & Co. Kg Dispositif permettant de produire une pluralité de fils synthétiques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000429A1 (fr) 2004-06-29 2006-01-05 Saurer Gmbh & Co. Kg Dispositif de filage par fusion et procede pour etaler plusieurs fils multifilaments dans un dispositif de filage par fusion
DE102009021118A1 (de) * 2008-06-11 2009-12-17 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Schmelzspinnen, Abziehen und Aufwickeln mehrerer Fäden
WO2015024817A1 (fr) * 2013-08-22 2015-02-26 Oerlikon Textile Gmbh & Co. Kg Dispositif permettant de produire une pluralité de fils synthétiques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019000644A1 (de) 2019-01-29 2020-07-30 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zur Führung mehrerer Fäden
EP4190734A1 (fr) * 2021-12-02 2023-06-07 TMT Machinery, Inc. Appareil de rattrapage de fil filé
WO2024088823A1 (fr) * 2022-10-26 2024-05-02 Oerlikon Textile Gmbh & Co. Kg Procédé et appareil d'étalement automatique d'une pluralité de fils synthétiques au niveau d'un dispositif enrouleur

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