EP0257464A1 - Procédé et dispositif de bobinage et le produit - Google Patents

Procédé et dispositif de bobinage et le produit Download PDF

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Publication number
EP0257464A1
EP0257464A1 EP87111731A EP87111731A EP0257464A1 EP 0257464 A1 EP0257464 A1 EP 0257464A1 EP 87111731 A EP87111731 A EP 87111731A EP 87111731 A EP87111731 A EP 87111731A EP 0257464 A1 EP0257464 A1 EP 0257464A1
Authority
EP
European Patent Office
Prior art keywords
thread
bobbin
groove
winding
coil
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
EP87111731A
Other languages
German (de)
English (en)
Other versions
EP0257464B1 (fr
Inventor
Jakob Fluck
Felix Graf
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP0257464A1 publication Critical patent/EP0257464A1/fr
Application granted granted Critical
Publication of EP0257464B1 publication Critical patent/EP0257464B1/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
    • B65H65/00—Securing material to cores or formers
    • B65H65/005—Securing end of yarn in the wound or completed 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
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S57/00—Textiles: spinning, twisting, and twining
    • Y10S57/908—Jet interlaced or intermingled

Definitions

  • the invention relates to a method for winding a thread into a bobbin, to an apparatus for carrying out the method and to the product in the form of a bobbin.
  • the word “thread” is intended to cover all elongated structures of fibers or filaments.
  • the invention is particularly suitable for the winding of synthetic filament yarns, e.g. Multifilament yarns of polyester, polyamide or polypropylene for textile, industrial or technical purposes.
  • Each bobbin unit contains a bobbin (packing) carrier (for example a bobbin mandrel) and means to hold the bobbin around the bobbin while it is being taken up To rotate axis.
  • bobbin packing
  • Today delivery speeds are between approx. 2500 and 6000 m / min. depending on the thread titer.
  • the thread is separated, a loose end of thread being formed on the bobbin and the bobbin subsequently brought to a standstill either by running out or, preferably, by braking.
  • the spool is then removed from the holder so that the latter is cleared for winding a new spool.
  • This operation can be done by hand or by an automat.
  • the winding of the continuously supplied thread may be temporarily interrupted during the reprocessing of the bobbin holder, or the thread may be wound on a second bobbin holder during the reprocessing of the first holder, so that a continuous or waste-free winding process is possible.
  • Winding machines according to the above description are known from the following prior publications: US 4298171; EPA 73930; US 4106710; US 4007884 US 4069985; US 4106710; EPA 110359; EPA 161385
  • the invention enables thread end fixation without the application of additives such as glue.
  • the invention provides a method for winding a thread into a bobbin, the thread being separated after completion of the bobbin and a thread end piece being formed in the process.
  • the method is characterized in that the thread end piece is swirled with at least one turn on the bobbin surface and is thereby fixed on the bobbin.
  • the term "intermingling of the thread” is to be understood as the interlocking (intertwining, intertwining) of thread parts, such as individual filaments or fibers.
  • Such swirling can be accomplished by directing a jet of treatment media (e.g., air or water) onto the thread end and an area of the bobbin surface with which the thread end is to be swirled.
  • a jet of treatment media e.g., air or water
  • the invention provides a winding unit with means for winding a thread into a bobbin and a device for fastening the end of the thread on the surface of the bobbin.
  • the unit is characterized in that the device comprises a blowing nozzle with a mouthpiece, which is suitable for forming a swirl chamber together with the coil surface.
  • the device preferably also contains a thread guide in order to direct the thread end into a predetermined region of the bobbin surface.
  • the mouthpiece of the blow nozzle is then arranged so that it forms the swirl chamber in this area.
  • the invention provides a thread spool, which is characterized in that the thread end piece is swirled with at least one outer turn of the spool and is thereby fixed.
  • spool coasting is used for the phase of slowing down the spool rotation, regardless of whether this slowing down is accomplished by braking or not.
  • the thread guide mentioned in the second aspect may be in the form of an element which is near or in contact with the bobbin surface during the bobbin runout.
  • This element is preferably trough-shaped, having a groove which extends in the circumferential direction of the coil, while the open side of the trough is opposite the coil surface.
  • the slot is preferably tapered in the direction of rotation of the coil.
  • the blowing nozzle should also be arranged near the bobbin surface, preferably just after the thread guide, viewed in the direction of rotation of the bobbin.
  • the mouthpiece of the blow nozzle is in contact with the coil surface during the swirling.
  • the mouthpiece can have a groove which also extends in the circumferential direction of the coil and represents an extension of the groove of the trough-shaped guide element.
  • a treatment medium eg air or water
  • the thread guide and blow nozzle are integrated in a single body.
  • This body can be carried by a bracket that allows movement of the body between a retracted and an operative position. In the latter position, the body part can be resiliently pressed against the surface of the spool with the blow nozzle, e.g. when the bobbin is brought from a winding position to a rest position (braking position).
  • Fig. 1 The winding machine in Fig. 1 is essentially the same as in Fig. 15 of our European patent application no. 73930. The arrangement and operation of this machine is in the European patent message and is not repeated here, only the components shown are identified.
  • a thread (multifilament yarn) 14 is supplied from a spinning system, not shown, to the machine shown for winding.
  • a machine housing 16 includes carrier and drive parts (not shown), and a floating roller 18 protrudes from the front of the housing 16. This friction roller 18 can be rotated by a motor (not shown) in the housing 16 about its longitudinal axis 20 at a controllable speed.
  • An upper coil mandrel 24 also protrudes from the front of the housing 16 and is supported at its end within the housing 16 by a swivel arm.
  • the swivel arm itself is not shown in FIG. 1, but is indicated by its longitudinal axis 28.
  • the pivot arm is pivotable within the housing about a pivot point 33 to move the mandrel 24 down from an upper rest position (shown in FIG. 1).
  • Mandrel 24 is overhung on the swivel arm to allow rotation of the mandrel about its longitudinal axis 27.
  • the longitudinal axis 27 follows a path which is indicated by a dash-dotted line 29.
  • mandrel 24 carries a sleeve 102 which serves as a carrier for a coil (pack) 36.
  • a sleeve 102 which serves as a carrier for a coil (pack) 36.
  • an empty sleeve can be placed on the mandrel so that the mandrel is ready for a new winding cycle.
  • the swivel arm rotates downward until sleeve 102 comes into contact with the rubbing roller 18, the mandrel 24 being driven about its longitudinal axis 27 by contact with the rubbing roller 18.
  • the thread 14 is now wound around the sleeve 102 while being moved back and forth along the mandrel axis 27 by a conventional traversing device 22 in order to form cross-turns in the new package.
  • the carrier arm is pivoted up again in order to enable the new pack to be built up between the sleeve 102 and the distributor roller 18.
  • the new pack is kept in constant contact with the friction roller 18 with a controllable contact pressure.
  • the support arm is swiveled up quickly in order to interrupt the contact between the pack and the distribution roller, and thus the transmission of the driving forces from the distribution roller to the package.
  • the thread 14 is supplied continuously and is preferably to be wound continuously in order to avoid loss of valuable material.
  • a second, lower bobbin mandrel 26 is present, which can take over the thread 14 on the upper mandrel 24 and continue to wind up when the winding is interrupted.
  • Mandrel 26 is carried by a lower pivot arm (indicated by its longitudinal axis 30) and is also cantilevered around the rotation of the spools to allow thorns about its longitudinal axis 25.
  • the lower support arm can be pivoted about an axis of rotation 35 in order to bring about a movement of the mandrel 26 along the path of the longitudinal axis 25 indicated by the dash-dotted line 31.
  • mandrel 26 also carries a sleeve 102, and thread 14 is built up into a pack 42 on this sleeve.
  • the mandrel 24 is returned to its rest position and brought to a standstill, after which the finished upper coil 36 can be removed from the mandrel and replaced by an empty sleeve 102. 1 is unrealistic in that it shows a full package on both the upper mandrel 24 and the lower mandrel 26.
  • the upper mandrel 24 should actually carry an empty sleeve 102 and be ready to pivot back into the winding position in order to take the thread 14 from the full package 42, so that the mandrel 26 in its rest position with the longitudinal axis 25 can be pivoted back in position 250 on path 31.
  • the invention is concerned with the problems of leakage of the full package and not with the takeover of the thread through the empty tube. The figure thus shows two full packs, the upper pack 36 being shown by dash-dotted lines.
  • a “working zone” which contains the movable package holders (spool pins 24, 26) and the thread-carrying parts 18, 22. Below the right side part In this working zone there is a foot plate 128.
  • a partition 130 On the left side of the working zone there is a partition 130 which is carried by the housing 16 and extends forward. The partition 130 carries at its upper and lower ends a continuation 132, which is only partially shown and which forms part of a hood (not shown) for the working zone.
  • the upper extension 132 carries a holder 134 for a first device 50 according to this invention, while the lower extension 132 carries a holder 136 for a second device 52.
  • the devices 50, 52 are rotatably supported by their respective holders so that each device can be pivoted between a standby position (shown in FIG. 1 for the device 52) and a retracted position.
  • the standby position of the device 52 is arranged opposite the path 31 such that the surface of the full spool 42 comes into contact with an end part of the device 52 when the mandrel 26 is pivoted back into the rest position 250.
  • each device 50, 52 contains a blowing nozzle. In order to supply this nozzle with compressed air from a source, not shown, in the housing 16, each device is connected to this source by a respective flexible air line 138, 140.
  • each device 50, 52 together with its respective holder 134, 136, and the mode of operation of these devices will now be described in more detail with reference to FIGS. 2 to 4. Since the lower device 52 is constructed and operates similarly to the upper device 50, only the upper device 50 and its holder 134 are shown and described below. Everything about this top device tion is also true for the lower device 52.
  • the last turns on the full package 36 thus form a small bead on the surface of the spool, and the thread end 38 rises further radially outward from this bead due to the centrifugal force.
  • the device 50 is arranged in the axial direction of the mandrel 24 such that it bridges this bead in its operating position (FIG. 1).
  • FIG. 2 shows holder 134 and device 50 with the latter in the retracted position.
  • Holder 134 is formed in the shape of a yoke, with two side walls (only one, 142, can be seen in FIG. 2) and an intermediate piece 144.
  • the two side walls 142 sit on the hood part 132 (FIG. 1, in FIG. 2) not shown), and the intermediate piece 144 extends over a hole (not shown) in the hood part 132 between the two side walls 142.
  • the intermediate piece 144 has a cavity 146 with a piston 148 therein.
  • the cavity 146 is open at one end and the piston 148 can protrude from this open end.
  • the intermediate piece 144 also has a bore 150 which opens into the cavity 146 at one end and is connected to a compressed air line 152 (FIG. 1, not shown in FIG. 2) at the other end.
  • a compressed air line 152 FIG. 1, not shown in FIG. 2
  • the device 50 is integrated in a single body in the form of a rocking shoe 54.
  • Shoe 54 is rotatably mounted on a pin 154 between the side walls 142 of the bracket 134.
  • the shoe can rotate about the longitudinal axis of the pin 154 through the hole in the hood portion 132 (FIG. 1), not shown, between the ready position and the retracted position.
  • the shoe 54 is provided with a nose 56, which is rotated clockwise around the axis of the pin 154 when the piston 148 is ejected by the latter.
  • this rotational movement is limited by contact between a stop surface 58 on the shoe and the underside of the intermediate piece 144, which defines the retracted position of the device 50 (as shown in FIG. 2).
  • the shoe 54 also has a blind bore 60 which opens into the surface 58 (see also FIG. 4).
  • the blind bore 60 contains a compression spring 62 which acts between the underside of the intermediate piece 144 and the inner end of the bore 60 in order to generate a restoring force against the rotary action of the piston 148.
  • the shoe 54 rotates counterclockwise around the longitudinal axis of the pin 154 in order to return the piston 148 into the cavity 146. This return movement takes place until the nose 56 strikes the intermediate piece 144, which thus defines the ready position of the device 50.
  • the operating position of the device 50 lies somewhere between the retracted position shown and the standby position and is dependent on the coil diameter.
  • the shoe 54 is resiliently pressed against the coil surface in the operating position by the restoring force of the spring 62.
  • an end part of the surface 64 which lies opposite the coil surface, is brought into contact with the coil surface at the end of the shoe 54 remote from the nose 56.
  • the contact can occur within an area D of the surface 64. This area D thus defines a “contact part” of the shoe 54, which can come into contact with the full coil in use.
  • the surface 64 extends tangentially to the coil surface in the operating position.
  • the contact part of the shoe 54 is, seen in the direction of rotation of the full spool 36, at the rear end of the shoe.
  • the front part of the shoe 54 (seen in front of the contact part in the direction of rotation of the bobbin 36) forms a thread guide, as will be described in detail below.
  • the contact part itself forms a blow nozzle with a specially designed mouthpiece, as described below.
  • the blowing nozzle formed by the contact part comprises a bore 66, which in the operating position extends approximately radially to the full spool 36, and in the surface 64 a groove 68, which extends in the longitudinal direction of the shoe 54.
  • a groove 68 which extends in the longitudinal direction of the shoe 54.
  • the loose thread end 38 (FIG. 1) is approximately aligned with the groove 68 and is pulled along the groove during each revolution of the spool 36 and at the same time the swirl chamber is supplied with compressed air of sufficient pressure, the thread end 38 becomes the outer turns of the bead swirled (intertwined, entwined).
  • the degree of swirling depends on many factors, but especially on the air pressure.
  • the degree of intermingling should be chosen so that the thread end remains fixed on the surface of the bobbin during transport and storage of the bobbin during further processing But the coil can be cleared from operation by rubbing the surface of the coil.
  • the thread guide part mentioned above (seen in front of the blowing nozzle in the direction of rotation of the bobbin 36) does not come into contact with the bobbin surface.
  • This guide part is trough-shaped through a groove 70, which opens on surface 64.
  • the groove 70 also extends in the longitudinal direction of the shoe 54 and is aligned with the groove 68.
  • the groove 70 tapers in its longitudinal direction from the front end to the groove 68.
  • the groove 68 also tapers from the groove 70 to the rear end of the shoe 54, which means the manufacture of the shoe 54 (with a steady taper of the groove 70 and groove 68 from the front to the rear end of the shoe) facilitated, but is not essential to the invention.
  • FIGS. 3 the groove 70 tapers in its longitudinal direction from the front end to the groove 68.
  • the groove 68 also tapers from the groove 70 to the rear end of the shoe 54, which means the manufacture of the shoe 54 (with a steady taper of the groove 70 and groove 68 from the front to
  • both the groove 70 and the groove 68 have V cross sections, the tip of the V lying in an imaginary plane which divides the shoe 54 into two equal longitudinal parts.
  • a cross section is also not essential for the invention.
  • the taper is made both in height (H to h) and in width (B to b).
  • the groove 70 functions as a guide funnel for the loose thread end 38 (FIG. 1). As the spool 36 rotates under the shoe 54, the thread end 38 is brought into the front end of the groove 70 with each revolution and is aligned in the longitudinal direction by the groove taper with the groove 68 to allow the desired swirling.
  • the blowing nozzle can comprise more than one feed bore for the compressed air.
  • the bore 66 in FIG. 4 can be arranged with an inclination to the radius of the coil 36, specifically in the longitudinal direction and / or transverse direction of the shoe 54. Accordingly, one or more feed bores with an inclination to the radius can be arranged from a plurality of feed bores .
  • the air pressure to be used in the example of FIGS. 3 and 4 can be between 2 and 6 bar.
  • the necessary air pressure must be determined on a case-by-case basis depending on the operating circumstances. If the pressure is too low, there is no sufficient turbulence. Increasing the pressure above the value which causes sufficient swirling means unnecessary energy consumption and can also have functional disadvantages if the end of the thread is swirled too strongly with the bobbin surface.
  • Swirling media other than air can be used, water being an obvious example.
  • air is the preferred medium because other gas jets cause complications and a liquid more or less poses a risk of contamination.
  • a thread guide part depends on the behavior of the thread end, which depends on the operating conditions. If the thread end runs perfectly into the swirl chamber without additional guidance, the blowing nozzle (with its specially designed mouthpiece) is sufficient. Usually, however, thread guidance will prove to be essential to success.
  • the guide must be arranged in front of the blow nozzle in the direction of rotation of the spool, but not be made in one piece with the blow nozzle.
  • the "contact surface" 64 should be able to sit quietly on the coil surface and form the best possible “seal" with the coil without damaging the coil surface.
  • a contact between the mouthpiece of the blow nozzle and the coil is not essential for the formation of a swirl chamber. However, if a distance between the mouthpiece and the coil is left during the swirling, a higher air pressure must be used in order to achieve a predetermined degree of swirling. In addition, a more precise guidance of the thread end must be ensured, because otherwise the thread end can avoid the swirling medium by slipping between the blowing nozzle and the bobbin surface. In any case, it is highly unlikely that a useful swirl will be achieved if the distance between the mouthpiece of the blow nozzle and the Coil surface in the operating position is more than 5 mm.
  • the embodiment of the invention described as an example is intended for a winding machine with an automatic changing process, i.e. the thread 14 (FIG. 1) is transferred from one mandrel to the other according to a predetermined, automatic change sequence without intervention by the operator. Afterwards, the doffing (removal of the full bobbin) can be carried out by hand or by an automatic machine.
  • the invention is equally advantageous in the context of a non-automatic winder, where winding up is temporarily interrupted after a full bobbin has been completed, while the bobbin mandrel is being prepared for the next winding cycle.
  • the invention is also advantageous in connection with other types of automatic winding machines, e.g. according to US PS 4298171.
  • the machine winds a single thread 14 into a bobbin.
  • a separate thread end fixing device must be provided for each bobbin provided.
  • the loose end of the thread (as viewed in the direction transverse to the bobbin axis) should be approximately parallel to the turns with which it is to be intermingled. These turns are preferably “parallel turns” and not “cross turns”. Since the bobbin is actually made up of cross-turns, some parallel turns should be formed at the end of the bobbin build-up for swirling with the end of the thread.
  • the invention has been described in connection with a machine with a friction drive between the friction roller and the pack, but can equally well be used in a machine with a spindle drive.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
EP87111731A 1986-08-22 1987-08-13 Procédé et dispositif de bobinage et le produit Expired - Lifetime EP0257464B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3390/86 1986-08-22
CH339086 1986-08-22

Publications (2)

Publication Number Publication Date
EP0257464A1 true EP0257464A1 (fr) 1988-03-02
EP0257464B1 EP0257464B1 (fr) 1990-01-31

Family

ID=4254939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87111731A Expired - Lifetime EP0257464B1 (fr) 1986-08-22 1987-08-13 Procédé et dispositif de bobinage et le produit

Country Status (4)

Country Link
US (1) US4805845A (fr)
EP (1) EP0257464B1 (fr)
JP (1) JPH0712885B2 (fr)
DE (1) DE3761557D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559041A1 (fr) * 1992-03-03 1993-09-08 Teijin Limited Procédé et dispositif pour traiter le bout de fil d'une bobine
WO2020094485A1 (fr) * 2018-11-07 2020-05-14 Oerlikon Textile Gmbh & Co. Kg Procédé et dispositif d'enroulement d'un fil multifilamentaire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567091B1 (fr) * 1992-04-23 1995-09-20 TEIJIN SEIKI CO. Ltd. Dispositif pour le bobinage de fil à changement automatique des bobines
JP2848256B2 (ja) * 1994-12-27 1999-01-20 村田機械株式会社 糸端処理方法と糸端処理装置を備えた巻取機
JP3028909U (ja) * 1996-03-12 1996-09-17 田中産業株式会社 生籾収納袋における換気装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2622300A1 (de) * 1975-05-27 1976-12-09 Vyzk Ustav Pletarsky Verfahren zum festhalten der auf der spulenkante beim spulen auf einer spulmaschine, insbesondere auf einer automatischen kreuzspulmaschine gebildeten fadenreserve und vorrichtung zum durchfuehren dieses verfahrens
US4327872A (en) * 1980-03-04 1982-05-04 Allied Corporation Yarn end retainer
US4339089A (en) * 1980-11-24 1982-07-13 Barmag Barmer Maschinenfabrik Ag Yarn winding apparatus and method

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Publication number Priority date Publication date Assignee Title
US2895285A (en) * 1954-01-13 1959-07-21 Universal Winding Co Method of manufacturing yarn and the product thereof
BE578409A (fr) * 1958-05-06 1959-08-31 Rueti Ag Maschf Procédé pour fixer la position de l'extrémité du fil du bobinage d'une bobine de trame.
US2985995A (en) * 1960-11-08 1961-05-30 Du Pont Compact interlaced yarn
US3581486A (en) * 1968-11-01 1971-06-01 Eastman Kodak Co Splicing of multifilament strands by turbulent gaseous fluid
US3727274A (en) * 1971-04-01 1973-04-17 Fiber Industries Inc Multifilament yarn interlacing device
DE3170577D1 (en) * 1980-04-02 1985-06-27 Ici Plc Cross winding machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2622300A1 (de) * 1975-05-27 1976-12-09 Vyzk Ustav Pletarsky Verfahren zum festhalten der auf der spulenkante beim spulen auf einer spulmaschine, insbesondere auf einer automatischen kreuzspulmaschine gebildeten fadenreserve und vorrichtung zum durchfuehren dieses verfahrens
US4327872A (en) * 1980-03-04 1982-05-04 Allied Corporation Yarn end retainer
US4339089A (en) * 1980-11-24 1982-07-13 Barmag Barmer Maschinenfabrik Ag Yarn winding apparatus and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559041A1 (fr) * 1992-03-03 1993-09-08 Teijin Limited Procédé et dispositif pour traiter le bout de fil d'une bobine
US5356085A (en) * 1992-03-03 1994-10-18 Teijin Limited Method and apparatus for treating package yarn end
US5553798A (en) * 1992-03-03 1996-09-10 Teijin Limited Method and apparatus for releasing an end yarn from entangled portions
WO2020094485A1 (fr) * 2018-11-07 2020-05-14 Oerlikon Textile Gmbh & Co. Kg Procédé et dispositif d'enroulement d'un fil multifilamentaire
CN112955393A (zh) * 2018-11-07 2021-06-11 欧瑞康纺织有限及两合公司 用于卷绕复丝丝线的方法和设备
CN112955393B (zh) * 2018-11-07 2023-02-17 欧瑞康纺织有限及两合公司 用于卷绕复丝丝线的方法和设备

Also Published As

Publication number Publication date
US4805845A (en) 1989-02-21
JPS6357477A (ja) 1988-03-12
DE3761557D1 (de) 1990-03-08
JPH0712885B2 (ja) 1995-02-15
EP0257464B1 (fr) 1990-01-31

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