EP0359453A2 - Méthode pour le transfert automatique de fils d'une bobine pleine à une vide - Google Patents

Méthode pour le transfert automatique de fils d'une bobine pleine à une vide Download PDF

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Publication number
EP0359453A2
EP0359453A2 EP89308913A EP89308913A EP0359453A2 EP 0359453 A2 EP0359453 A2 EP 0359453A2 EP 89308913 A EP89308913 A EP 89308913A EP 89308913 A EP89308913 A EP 89308913A EP 0359453 A2 EP0359453 A2 EP 0359453A2
Authority
EP
European Patent Office
Prior art keywords
bobbin
empty
elastic yarn
full
yarn
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
EP89308913A
Other languages
German (de)
English (en)
Other versions
EP0359453A3 (en
EP0359453B1 (fr
Inventor
Norio Ukai
Takamitu Kawazoe
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.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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
Priority claimed from JP63223288A external-priority patent/JP2620325B2/ja
Application filed by Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Publication of EP0359453A2 publication Critical patent/EP0359453A2/fr
Publication of EP0359453A3 publication Critical patent/EP0359453A3/en
Application granted granted Critical
Publication of EP0359453B1 publication Critical patent/EP0359453B1/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
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • 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
    • B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/28—Reciprocating or oscillating guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/044—Continuous winding apparatus for winding on two or more winding heads in succession
    • B65H67/048—Continuous winding apparatus for winding on two or more winding heads in succession having winding heads arranged on rotary capstan head
    • 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
    • B65H2701/319—Elastic threads

Definitions

  • the present invention relates to a method of automatically transferring an elastic yarn from a full-bobbin on a bobbin shaft to an empty-bobbin on another bobbin shaft in a winder which is continuously winding the elastic yarn, to improve the efficiency of an automatic transfer operation of the elastic yarn.
  • An elastic yarn has specific characteristics i.e., a high stretchability, a high frictional property or the like, compared with a general-purpose synthetic fiber such as a polyamide fiber or a polyester fiber, and accordingly, the following specific yarn transfer methods have been applied for the transfer of an elastic yarn.
  • Japanese Unexamined Patent Publication (Kokai) No. 47-27634 disclosed a method of transferring a yarn wound continuously on a full-bobbin to an empty-bobbin wherein the full-bobbin driven by a friction roll is moved away from the friction roll, the empty-bobbin is placed in contact with the friction roll, to rotate the empty-bobbin and the full-bobbin stopped until the empty-bobbin is rotated at a desired rotational speed, so that the yarn is automatically wound on the empty-­bobbin, i.e., the yarn slack between the empty-bobbin and the full-bobbin is wound on the full-bobbin and the slack yarn is stretched between the empty-bobbin and the full-bobbin and is broken.
  • the elastic yarn Since, however the elastic yarn has a high stretchability, when the elastic yarn is broken by a stretching operation the elastic yarn slides on a circumferential surface of the bobbin during the recovery of an original length of the elastic yarn.
  • the elastic yarn since the elastic yarn partially strikes the circumferential surface of the bobbin and a tension in portions of the elastic yarn striking the circumferential surface of the bobbin suddenly becomes zero, the elastic yarn is flexed, i.e., portions of the elastic yarn move away from the circumferential surface and other portions of the elastic yarn adhere to the circumferential surface.
  • the portions of the elastic yarn moved away from the circumferential surface are eventually adhered to the circumferential surface, and the elastic yarn then continuously wound on the empty-­bobbin. Nevertheless, a high speed spinning method in which a rotational surface speed of the friction roll and the bobbin is remarkably increased has been introduced, and an elastic yarn having a finer denier than a conventional elastic yarn is used. In these cases, often the elastic yarn is not wound on the empty-bobbin but on the friction roller, and thus the automatic yarn transfer operation was not carried out.
  • Japanese Examined Patent Publication (Kokoku) No. 1-22195 disclosed another method of automatically transferring an elastic yarn from a full-bobbins to an empty-bobbin.
  • a winder implementing the transfer method disclosed in Japanese Examined Patent Publication (Kokoku) No. 1-22195 is schematically illustrated in Fig. 11(A) and Fig. 11(B). As shown in Fig.
  • this winder is composed of two bobbin shafts 5 and 6, a turret dish 4 rotatably supporting the bobbin shafts 5 and 6 at positions spaced apart by an angle of 180°, a friction roll 1 able to come into contact with a bobbin 8 mounted on one of the two bobbin shafts 5 and 6 and driving the bobbin 8, and a traverse device 3.
  • the winder is further provided with a yarn position restricting plate 7 arranged upstream of the traverse device 3 and having yarn guiding portions constituted by two inclined surfaces forming a yarn holding point at an end where the two inclined surfaces come together, and a yarn receiving opening formed between the other ends of the two inclined surfaces.
  • the elastic yarn is released from the traverse device by turnings the yarn position restricting plate 7, and the positions of the full bobbin 8a and the empty-bobbin 8 are reversed by rotating the turret disk 4 through 180° (see Fig. 11(A)) so that the empty-bobbin comes into contact with the friction roll 1, and thus the elastic yarn is held in a slit arranged in the circumferential direction of the bobbin 8 on a circumferential surface of the bobbin 8 and is cut.
  • An object of the present invention is to provide a method of automatically transferring an elastic yarn, wherein the efficiency of a yarn transfer operation is improved by ensuring that the elastic yarn is not attached to and wound on a friction roll but is taken up by an empty-bobbin when the elastic yarn is transferred from a full-bobbin to the empty-bobbin in a winder having a friction roller.
  • Another object of the present invention is to provide an automatic elastic yarn transferring method which can be applied to a normal bobbin not provided with a special yarn holding means e.g., a slit.
  • the object of the present invention is achieved by a method of automatically transferring an elastic yarn from a full-bobbin on a bobbin shaft to an empty-bobbin on another bobbin shaft in a friction-driven type winder comprising a bobbin carrier supporting two bobbin shafts in different positions, a friction roller able to come into contact with a bobbin on which the elastic yarn is to be wound and a traverse device, in which the positions of the shafts can be reversed, characterized in that the empty-bobbin is rotated about an axis thereof in a state such that the empty-bobbin is moved and held in a position remote from the friction roll and is in contact with the elastic yarn extended from the full-bobbin, the elastic yarn is cut by stopping a feed of the elastic yarn to the full-bobbin, a cut end of the elastic yarn is wound on the empty-bobbin, and the portion wound on the empty-bobbin of the elastic yarn is firmly fixed on a surface of the empty-bobbin due to a specific characteristics of the elastic yarn, and
  • the bobbin carrier is a turret type bobbin carrier, and a space is provided between the empty-bobbin and the friction roller so that the empty-bobbin comes into contact with the elastic yarn extended from the full-bobbin, but does not come into contact with the friction roller, and the empty-bobbin is rotated.
  • the elastic yarn is drawn and broken between the full-bobbin and the empty-bobbin by stopping a rotation of the full-bobbin and winding a slack portion of the elastic yarn between the full-­bobbin and the empty-bobbin onto the empty-bobbin.
  • the elastic yarn may be transferred from the full-bobbin to the empty-bobbin after the elastic yarn extended from the full-bobbin is removed from the traverse device.
  • a yarn guide having a concave shape and an opening having a length which is larger than a traversing width of the traverse device may be driven in a manner such that the elastic yarn is removed from the traverse device.
  • the empty-­bobbin is rotated such that the elastic yarn is wound for between 50 to 1000 turns on the empty-bobbin, to firmly hold the elastic yarn on the empty-bobbin.
  • full-bobbin is used to denote a yarn package formed by winding the elastic yarn on an empty-bobbin, and a quantity of yarn wound on the empty-bobbin is not limited to a specific value.
  • empty-­bobbin is used to denote a bobbin per se or a bobbin with an elastic yarn wound on the bobbin and having a relatively short length necessary for performing an automatic yarn transfer operation.
  • various method can be used, e.g., a method of moving the empty-bobbin toward and against the friction roll in a fixed position, a method of moving the friction roll toward and against the empty-bobbin in a fixed position, or a method of relatively moving both the friction roll and the empty-bobbin.
  • an empty-bobbin mounted on a bobbin shaft which can be freely rotated, but usually is not driven, is rotated by bringing the empty-bobbin into contact with a friction roll driven by a friction force due to the contact between the friction roll and the empty-­bobbin.
  • An elastic yarn used in the present invention may be an elastic yarn made from any one of a polyurethane group polymer, a polyester group polymer, a polyamide group polymer, a polycarbonate group polymer or the like; a composite elastic yarn or a blended elastic yarn from the above elastic yarn; or an elastic yarn composed of the above polymer as a main ingredient and other polymers.
  • the polyurethane elastic yarn having a soft segment which is a polyether, a polyester, a polyamide, a polycarbonate, a polycaprolactam, a polyetherester, or a mixture thereof, is preferably used.
  • Figure 1 shows an example of a turret type winder used for implementing an elastic yarn transfer method in accordance with the present invention.
  • the winder illustrated in Fig. 1 is composed of tow bobbin shafts 5 and 6, a turret dish 4 rotatably supporting the bobbin shafts 5 and 6 in positions spaced on a circle having a predetermined diameter and the same center as that of the dish 4, by 180° from each other, a friction roll 1 able to come into contact with a bobbin 8 mounted on one of the two bobbin shafts 5 and 6 and driving the bobbin 8, and a traverse device 3.
  • each end of a traverse box 2 in which the traverse device 3 is included, and the friction roll 1, are supported by a raising and descending plate 9.
  • the raising and descending plate 9 can be moved in a vertical plane by an air-­operated twin-piston device 21 to which compressed air is supplied through a pipe 22 and included in a housing 13 of the winder.
  • compressed air is not supplied to the piston device 21, the traverse box 2 and the friction roll 1 are allowed to descend to a position at which the friction roll is in contact with a full-­bobbin 8a mounted on the bobbin shaft 5, under its own weight, and is raised in accordance with an increase of a diameter of the full-bobbin 8a.
  • the turret dish 4 can be rotated by a shaft 36 driven by a motor 31, to reverse the positions of the full-bobbin 8a and the empty-bobbin 8 when an exchange of the full-­bobbin 8a and the empty-bobbin 8 and a yarn transfer operation are effected.
  • Each bobbin shaft also can be independently rotated by activating exclusive motors 32, 33, respectively.
  • the full-bobbin 8a must be suddenly stopped when the yarn transfer operation is performed in accordance with the present invention.
  • the above stopping of the full-­bobbin 8a is effected by braking a dish 34 provided on a shaft of the motor 32, from both sides thereof, by using air-operated twin-piston devices 35 to which compressed air is supplied through a pipe 36, as illustrated in Figs. 4 and 5.
  • a yarn position restricting plate 7 is pivotably attached to a front top corner of the traverse box 2 as illustrated in Fig. 1. More particularly, as illustrated in Fig. 6, a top end of the yarn position restricting plate 7 is pivotably supported by a pin 41 arranged on the front top corner of the traverse box 2, and another pin 42 is arranged near to a central position in a vertical direction in Fig. 6 of the yarn position restricting plate 7. An end of a position 46 of a piston device 44 is pivotably attached to the pin 42, and a lower end of the piston device 44 is pivotably supported on a pin 43 fixed to the traverse box 2. Therefore, the yarn position restricting plate 7 can be swung about the pin 41 by supplying compressed air through a pipe 45 to the piston device 44.
  • an end opposite to the top end of the yarn position restricting plate 7 is provided with several saw-tooth-like depres­sions having deepest points thereof shown as 7a in Fig. 10.
  • a length of an opening of the depression may be determined to be larger than a traverse length of the yarn caused by a traverse motion of the traverse device, and a yarn guide 3a can run in a horizontal direction in an elongated slit 3b and is provided with a notch opening at forward end thereof, as illustrated in Fig. 2.
  • the yarn held in the yarn guide 3a running in the horizontal direction can be easily released from the yarn guide 3a. Therefore, since the yarn can be withdrawn at a constant position of the empty-bobbin 8 by the empty-bobbin 8 without a traverse motion, as described in detail hereafter, when the yarn transfer operation is performed, the elastic yarn attached to the empty-­bobbin 8 is firmly held on the empty-bobbin 8.
  • Fig. 7(A) shows a state in which an elastic yarn having a predetermined length or a predetermined weight is wound on a full-bobbin 8a rotated by a friction roll 1, and reaches a stage at which it must be exchanged for an empty-bobbin 8.
  • a friction roll 1 and a traverse box 2 are raised by operating the piston device 21 to separate the friction roll 1 from the full-bobbin 8a, as shown in Fig. 7(B).
  • a turret disk 4 is rotated in a clockwise direction by 180° to reverse the positions of the full-bobbin 8a and the empty-bobbin 8 as shown in Fig. 7(C) and Fig. 7(D), and an elastic yarn Y extended from the full bobbin 8a comes into contact with the empty-bobbin 8.
  • the elastic yarn Y is released from a traverse device 3 by raising a yarn position restricting plate about a pin 41 on a corner of a traverse box 2. Therefore the elastic yarn can be brought into contact with a defined position of a surface of the empty-bobbin 8, as shown in Fig. 7(E).
  • the full-bobbin 8a is suddenly stopped, so that the slack portion between the full-­bobbin 8a and the empty-bobbin 8 of the elastic yarn Y is wound on the empty-bobbin 8 and the portion of the yarn is broken by being stretched between the full-­bobbin 8a and the empty-bobbin 8.
  • the slack portion of the elastic yarn recovers an original length thereof, and this portion of the elastic yarn can be easily wound on the empty-bobbin 3 due to the high frictional property thereof.
  • the portion of the elastic yarn cannot be wound on the friction roll 1, as in a yarn transfer operation in a conven­tional winder, and the portion of the elastic yarn can be firmly wound on the empty-bobbin 3 without hindering the yarn transfer operation from the full-bobbin 8a to the empty-bobbin 8.
  • the elastic yarn Y is caught by a traverse guide 3a of the traverse device 3 when the yarn position restricting plate is returned to an original position, and the traverse box 2 and the friction roll 1 descend in such a way that the friction roll is brought into contact with the empty-bobbin 3 on which is wound the elastic yarn Y, and thus a normal winding operation of the elastic yarn Y is started with a traverse motion, as shown in Fig. 7(G).
  • the return of the yarn position restricting plate and the descent of the traverse box 2 and the friction roll 1 may be performed simultaneously or sequentially.
  • a distance A between a surface of the friction roll 1 and a surface of the empty-bobbin 8 is preferably 10 mm or more, more preferably 20 mm or more. If the distance A is 5 mm or less, the length of a portion of the elastic yarn in contact with the friction roll 1 becomes relatively long, and the elastic yarn is likely to be wound on the friction roll 1. Therefore, a space of at least 10 mm must be provided between the surface of the friction roll 1 and the surface of the empty-­bobbin 8.
  • the full-­ bobbin 8a need not be completely stopped but only a surface speed of the full-bobbin 8a need be decreased compared with a surface speed of the empty-bobbin 8 to slacken the portion of the elastic yarn Y extended between the full-bobbin 8a and the empty-bobbin 8.
  • a means capable of fully stopping the rotation of the full-bobbin within several seconds is provided. Therefore, preferably a breaking mechanism as shown in Figs. 4 and 5 is used.
  • the elastic yarn Y When the elastic yarn Y is wound on the empty-­bobbin, preferably the elastic yarn Y is wound for 3 to 5 turns or more, more preferably 10 to 20 turns or more on the empty-bobbin 8 without a traverse motion. If the number of turns of the elastic yarn is less than 3 to 5, the elastic yarn may slip on the empty-bobbin or the cut end of the elastic yarn may project from a winding layer of the elastic yarn on the empty-bobbin, and the portion of the elastic yarn wound on the empty-bobbin 8 may be transferred from the empty-bobbin 8 to the friction roll 1 when the friction roll 1 comes into contact with the empty-bobbin 8 in this state.
  • Figs. 8(A) to 8(C) illustrate several attitudes of winding the elastic yarn on the empty-bobbin 8. Since the yarn transfer operation in accordance with the present invention is performed without a traverse motion, several turns of the elastic yarn Y wound at a point G on the empty-bobbin are kept on the same locus l0 on the empty-bobbin 8 and then the friction roll 1 is brought into contact with the empty-bobbin 8, as shown in Fig. 8(A). Further, since a yarn transfer operation in a conventional winder is performed with a traverse motion, an elastic yarn Y wound at a point G in a locus l0 on an empty-bobbin 8 is next wound on another locus l1.
  • the winding layer of the elastic yarn becomes loose and thus the elastic yarn wound on the empty-bobbin 8 may be transferred to the friction roll 1 as shown in Fig. 8(B). Further, after the yarn transfer operation in accordance with the present invention is performed, the normal winding with a traverse motion is applied on the winding layer of the several turns of the elastic yarn on substantially the same locus, as shown in Fig. 8(C). Therefore the winding layer caused by the yarn transfer operation can be firmly held on the empty-bobbin 8 by a normal winding with a traverse motion.
  • the empty-bobbin 8 is rotated by a motor 33.
  • the rotation of the empty-­bobbin 8 by the motor 33 is preferably at the same surface speed of the empty-bobbin 8 as that of the friction roll 1 by 50 turns to 1000 turns after the friction roll 1 is in contact with the empty-bobbin 8. If the drive of the empty-bobbin 8 is stopped after the friction roll 1 comes into contact with the empty-­bobbin, a surface speed of the empty-bobbin may decrease, resulting in a transfer of the elastic yarn from the empty-bobbin 8 to the friction roll 1. There­fore, a failure of the yarn transferring operation can be avoided by rotating the empty-bobbin 8 at least 50 turns after the friction roll 1 comes into contact with the empty-bobbin 8.
  • preferably saw-tooth-like depressions are provided on a top end of the yarn restricting plate 7. Namely, when the yarn restricting plate 7 is raised about the pin 41, the elastic yarn in contact with the depression is smoothly guided onto an inclined side face of the saw-tooth like depression and reaches a deepest point thereof, i.e., an apex 7a. Therefore, it is possible to smoothly release the elastic yarn from the traverse device 3 without applying an irregular tension to the elastic yarn, which ensures a good quality of the full-bobbin 8a.
  • a separating rod 11 is arranged to optionally enter and leave the traverse box 2 between each winding section, as shown in Fig. 9.
  • a polyurethane prepolymer is made from a 4,4′ diphenylmethane diisocyanate and a polytetramethylene­glycol by a conventional method, and a material polymerized from the polyurethane prepolymer by a coupler such as an ethylene diamine or the like is dissolved in an solvent to make a polyurethan stock solution having a content of 27%, and a polyurethane elastic yarn of 20d or 40d is manufactured from the polyurethane stock solution by a dry spinning method.
  • Example 1 the yarn has a denier of 20d, in Example 2 a denier of 40d, and comparative Examples 1 and 2 corresponding to Example 1 and Comparative Examples 3 and 4 corresponding to Example 2 are manu­factured under the conditions shown in the following Table 1. The results of the effectiveness of the automatic yarn transfer operations are also shown in Table 1.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Unwinding Of Filamentary Materials (AREA)
EP89308913A 1988-09-06 1989-09-04 Méthode pour le transfert automatique de fils d'une bobine pleine à une vide Expired - Lifetime EP0359453B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP63223288A JP2620325B2 (ja) 1988-09-06 1988-09-06 弾性糸の巻取自動切替方法、装置および弾性糸巻糸体の製造方法
JP223288/88 1988-09-06
JP139453/89 1989-06-01
JP13945389 1989-06-01

Publications (3)

Publication Number Publication Date
EP0359453A2 true EP0359453A2 (fr) 1990-03-21
EP0359453A3 EP0359453A3 (en) 1990-05-30
EP0359453B1 EP0359453B1 (fr) 1993-11-18

Family

ID=26472265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89308913A Expired - Lifetime EP0359453B1 (fr) 1988-09-06 1989-09-04 Méthode pour le transfert automatique de fils d'une bobine pleine à une vide

Country Status (4)

Country Link
EP (1) EP0359453B1 (fr)
KR (1) KR940001580B1 (fr)
DE (1) DE68910762T2 (fr)
ES (1) ES2046488T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414180A1 (de) * 1993-04-23 1994-10-27 Murata Machinery Ltd Verfahren zum Aufspulen elastischer Fäden sowie eine Spulmaschine hierzu
EP0680918A3 (fr) * 1994-05-04 1996-12-04 Bayer Ag Procédé et dispositif pour enrouler des fils ou fibres sans fin.
EP1411014A1 (fr) * 2002-10-17 2004-04-21 Giudici S.p.a. Procédé et dispositif pour la production d'un fil élastique et pour remplacer automatiquement les bobines d'alimentation
WO2009076898A1 (fr) * 2007-12-11 2009-06-25 Zhengzhou Zhongyuan Spandex Engineering Technology Co., Ltd. Enrouleur de fil pour enrouler une fibre élastique en uréthane
EP4488209A1 (fr) * 2023-07-04 2025-01-08 Zhejiang Kingsway High-Tech Fiber Co., Ltd Procédé de préparation de filament industriel de nylon

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11193183A (ja) * 1997-12-29 1999-07-21 Murata Mach Ltd 弾性糸用紡糸巻取機及び弾性糸パッケージ
KR100450175B1 (ko) * 2001-11-23 2004-09-24 주식회사 효성 탄성사의 방사 권취기 및 그 권취 방법과 이를 통해감겨진 탄성사 권사체
KR20040073675A (ko) * 2003-02-14 2004-08-21 주식회사 효성 탄성사 방사 권취기의 오토 도핑 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE788480A (fr) * 1971-09-23 1973-03-06 Rieter Ag Maschf Dispositif d'envidage avec changement automatique de bobine et moyens pour la compensation des variations de tension du fil au changement de bobine
US4141514A (en) * 1978-04-13 1979-02-27 Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft Standby chuck operating mechanism
CA1228842A (fr) * 1983-10-28 1987-11-03 Gregory A. Kotzur Bobineuse pour procede en continu
DE3831341C2 (de) * 1987-09-23 1994-09-01 Barmag Barmer Maschf Aufspulmaschine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414180A1 (de) * 1993-04-23 1994-10-27 Murata Machinery Ltd Verfahren zum Aufspulen elastischer Fäden sowie eine Spulmaschine hierzu
US5566904A (en) * 1993-04-23 1996-10-22 Murata Kikai Kabushiki Kaisha Method for sequentially winding elastic yarn on a plurality of bobbin holders
DE4414180C2 (de) * 1993-04-23 2000-04-13 Murata Machinery Ltd Verfahren zum Aufspulen eines elastischen Fadens sowie eine Spulmaschine hierzu
EP0680918A3 (fr) * 1994-05-04 1996-12-04 Bayer Ag Procédé et dispositif pour enrouler des fils ou fibres sans fin.
US5810270A (en) * 1994-05-04 1998-09-22 Bayer Aktiengesellschaft Method and device for continuous loss free bobbin change
EP1411014A1 (fr) * 2002-10-17 2004-04-21 Giudici S.p.a. Procédé et dispositif pour la production d'un fil élastique et pour remplacer automatiquement les bobines d'alimentation
WO2004035446A1 (fr) * 2002-10-17 2004-04-29 Giudici S.P.A. Procede et dispositif destines a la production d'un fil elastique guipe et au remplacement automatique de bobines de distribution
US7360354B2 (en) 2002-10-17 2008-04-22 Giudici S.P.A. Method and device for the production of covered elastic yarn and for automatically replacing feeding spools
WO2009076898A1 (fr) * 2007-12-11 2009-06-25 Zhengzhou Zhongyuan Spandex Engineering Technology Co., Ltd. Enrouleur de fil pour enrouler une fibre élastique en uréthane
EP4488209A1 (fr) * 2023-07-04 2025-01-08 Zhejiang Kingsway High-Tech Fiber Co., Ltd Procédé de préparation de filament industriel de nylon

Also Published As

Publication number Publication date
ES2046488T3 (es) 1994-02-01
DE68910762D1 (de) 1993-12-23
DE68910762T2 (de) 1994-03-31
EP0359453A3 (en) 1990-05-30
KR900004988A (ko) 1990-04-13
EP0359453B1 (fr) 1993-11-18
KR940001580B1 (ko) 1994-02-25

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