EP1344739A2 - Procédé pour l'épissage d'un fil à âme, épissure d'un fil à âme et bobinoir automatique à dispostif d'épissage de fils à âme - Google Patents

Procédé pour l'épissage d'un fil à âme, épissure d'un fil à âme et bobinoir automatique à dispostif d'épissage de fils à âme Download PDF

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Publication number
EP1344739A2
EP1344739A2 EP03003790A EP03003790A EP1344739A2 EP 1344739 A2 EP1344739 A2 EP 1344739A2 EP 03003790 A EP03003790 A EP 03003790A EP 03003790 A EP03003790 A EP 03003790A EP 1344739 A2 EP1344739 A2 EP 1344739A2
Authority
EP
European Patent Office
Prior art keywords
core
layer fibers
yarn
core yarns
outer layer
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
EP03003790A
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German (de)
English (en)
Other versions
EP1344739A3 (fr
EP1344739B1 (fr
Inventor
Naotaka Sakamoto
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
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 Murata Machinery Ltd filed Critical Murata Machinery Ltd
Publication of EP1344739A2 publication Critical patent/EP1344739A2/fr
Publication of EP1344739A3 publication Critical patent/EP1344739A3/fr
Application granted granted Critical
Publication of EP1344739B1 publication Critical patent/EP1344739B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B65H69/02—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by means of adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a splicing method of core yarns together, a spliced portion formed by this splicing method, and an automatic winder comprising a core yarn splicing device that embodies the splicing method.
  • a core yarn is composed of a stretchable yarn such as spandex (polyurethane fibers) as inner layer fibers and an anti-shrink yarn such as wool or cotton fibers, as outer layer fibers.
  • the core yarn thus has both the stretchability of spandex and the texture of natural fibers.
  • a description will be given of core the yarn splicing method known to be practical.
  • a knot method comprises mechanically tying ends of two core yarns separated from each other by cutting. This method is applicable to even core yarns having strong tied portion and relatively large yarn numbers.
  • the tie portion of the core yarns is a bump-shaped projection. Accordingly, when such yarns are used for woven or knitted fabrics, such bump-shaped projections must be pushed in toward the back side of a cloth.
  • an air splicing method comprises using compressed air to untwist and disentangle the ends of separated two core yarns, superimposing the ends of the core yarns on each other, and then allowing the flow of compressed air to act on the superimposed portion to instantaneously splice the two core yarns together.
  • the resulting spliced portion is not a projection as in the knot method.
  • the stretchable inner layer fibers are not spliced together, thus preventing the spliced portion from being stretchable.
  • the end of the core yarn may project out of the outer layer febers, resulting in a yarn defect.
  • the present invention thus provides a core yarn splicing method that can splice inner layer fivers and outer layer fivers together and can keep a spliced portion stretchable.
  • the present invention also provides a spliced portion core yarns formed by this splicing method and an automatic winder comprising a splicing device that embodies this splicing method.
  • a method of splicing core yarns composed of stretchable inner layer fibers and anti-shrink outer layer fibers characterized by comprising allowing a flow of compressed air to act or exerting external force of a rotating member such as a beater, on ends of the two core yarns obtained by cutting, in a direction in which the core yarns are stretched, to stretch the contracted outer layer fibers to their original state, cutting the untwisted outer layer fibers, abutting the ends of the core yarns formed by the cutting, applying an adhesive to an abutted portion, and then setting the adhesive.
  • this method is characterized in that the adhesive is optically set when irradiated with light.
  • this method may be characterized in that the light is an ultraviolet ray or a laser beam.
  • a spliced portion of core yarns characterized in that two core yarns each composed of stretchable inner layer fibers and anti-shrink outer layer fibers are provided, ends of the two core yarns are abutted together, an adhesive is applied to an abutted potion to splice the core yarns together so that at the spficed portion, the inner layer fibers and the outer layer fibers are substantially continuous.
  • an automatic winder comprising a core yarn splicing device, the automatic winder being characterized by being provided with a core yarn splicing device that allows a flow of compressed air to act on ends of two core yarns obtained by cutting, in a direction in which the core yarns are stretched, to stretch the contracted outer layer fibers to their original state, cuts the untwisted outer layer fibers, abuts the ends of the core yarns formed by the cutting, applies an adhesive to an abutted portion, and then sets the adhesive for splicing.
  • the automatic winder may be characterized in that the core yarn splicing device comprises pairs of clamp members each of which grips a corresponding one of two core yarns and is movable, a pair of first cutter members each used to form an end of the corresponding core yarn gripped by the clamp members, a pair of air nozzles each of which allows a flow of compressed air to act on the end of the corresponding core yarn, a pair of second cutter members each of which cuts, after the core yarns have been cut, the end of the corresponding core yarn so that the pairs of clamp members can be moved closer to each other to abut end surfaces of the core yarns against each other, resin supply means for applying an adhesive composed of a photo-setting resin, to an abutted portion, and light irradiation means for setting the applied photo-setting resin.
  • the automatic winder may be characterized in that the light irradiation means comprises a semiconductor laser.
  • Figures 1 and 2 illustrate this splicing method.
  • a pair of core yarns 1A, 1B are gripped by closable and movable clamps 30, 31.
  • a pair of air nozzles 50, 51 are used to apply a flow of compressed air to the core yarns 1A, 1B in their axial direction (the direction in which yarn ends are stretched).
  • the compressed air is allowed to flow toward first cutters 40, 41 (the direction of the arrows in the figure), described later.
  • the core yarn end surfaces 1a, 1b are impregnated with an adhesive 2 composed of an ultraviolet setting resin.
  • the clamps 30, 31 are moved to abut the core yarn end surfaces 1a, 1b against each other.
  • the adhesive 2 that has infiltrated through the core yarn end surfaces 1a, 1b becomes integral owing to surface tension.
  • the core yarn end surfaces 1a, 1b abutted against each other are irradiated with an ultraviolet ray from an ultraviolet lamp 70.
  • the adhesive 2 is thus set to form a spliced portion.
  • the clamps 30, 31 are opened.
  • a driving device (not shown in the drawings) is used to feed the core yarns 1A, 1B.
  • the adhesive 2 may be applied to the abutted portion of the core yarn end surfaces 1a, 1b abutted against each other as shown in Figure 2B.
  • the adhesive 2 may be applied to the core yarn end surfaces 1a, 1b during or immediately after cutting in unison with the operation of the second cutters 60, 61 as shown in Figure 1C.
  • the thermosetting resin may be set by using, in place of the ultraviolet lamp 70, a halogen lamp that applies a heat ray or contacting a pair of hot plates with the abutted portion under pressure, the hot plates each having a semicircular groove is formed in its inner surface.
  • the adhesive 2 is made of a photosetting resin, it may be set by using a semiconductor laser in place of the ultraviolet lamp 70 and irradiating the abutted portion with a laser beam.
  • Figure 3 corresponds to Figure 1 and is an enlarged view of the core yarn 1A.
  • Figure 3A corresponds to Figure 1A.
  • outer layer fibers 11a an outer layer of inner layer fibers 10a
  • Figures 3B1 and 3B2 correspond to Figure 1B.
  • Figure 3B1 shows a state observed before compressed air is applied.
  • Figure 3B2 shows a state observed after the compressed air has been applied.
  • the flow of compressed air is used as external force that untwists the outer later fibers.
  • other mechanical means e.g. a method of applying a brake lining-like member to the yarn end surface and drawing the yarn end surface through this member or allowing a rotating member to act on the yarn end surface.
  • Figure 4 illustrates the spliced portion of core yarns.
  • the spliced core yarns 1A, 1B are abutted against each other without superimposing the core yarn end surfaces 1a, 1b on each other.
  • the core yarns 1A, 1B are tightly spliced together using the adhesive 2. Further, the core yarn end surfaces 1a, 1b are abutted against each other after cutting. Accordingly, the twists of the outer layer fibers 11a, 11b in the core yarns 1A, 1B, respectively, are substantially continuous.
  • FIGS 5 to 16 are side views of the automatic winder.
  • Figures 9 to 16 are front views of the core yarn splicing device provided in the automatic winder. These figures illustrate operations performed when two core yarns are spliced together.
  • the automatic winder shown in Fig. 5 comprises a core yarn splicing device (hereinafter referred to as a "splicing device") 101 arranged in the middle, a yarn supplying bobbin B arranged at the bottom, and a winding package P arranged at the top.
  • a core yarn YP supplied by the yarn supplying bobbin B is wound around the winding package P being rotated.
  • the core yarn YP supplied by the yarn supplying bobbin B passes through a guide G and is then subjected to an appropriate tension by a tenser T.
  • the core yarn YP then passes around a traversing drum D being rotated.
  • a predetermined amount of core yarn TP is wound around the winding package P.
  • a detecting device F always detect the thickness of the passing core yarn YP so as to prevent a core yarn YP with a defective part from being wound around the winding package P.
  • the detecting device F detects a yarn defect in the passing core yarn YP by comparing the diameter of the core yarn YP with a preset value. Then, when the detecting device F detects a yarn defect, a cutter (not shown in the drawings) provided in the detecting device F cuts the core yarn YP. At the same time, the winding package P stops rotating, thus halting the winding operation.
  • the suction arms S1 S2 are hollow inside and are connected to a suction duct KP. Then, when the suction duct KP sucks air, suction ports S1a, S2a in the suction arms S1 S2, respectively, suck and grip the upper yarn Y1 and the lower yarn Y2, respectively.
  • FIG. 9 shows the front surface of the splicing device 101.
  • An upper yarn clamp member 110 and a lower yarn clamp member 111 are provided on a base 101A.
  • the upper yarn clamp member 110 and the lower yarn clamp member 111 are composed of first clampers 110a, 111a and second clampers 110b, 111b, respectively.
  • the first dampers 110a, 111a are normally separated from the second clampers 110b, 111b.
  • the upper yarn suction arm S1 guides the upper yarn Y1 to between the first clamper 110a and the second clamper 110b of the upper yarn clamp member 110.
  • the lower yarn suction arm S2 guides the upper yarn Y2 to between the first clamper 111a and the second clamper 111b of the lower yarn clamp member 111.
  • a first cutter member 220 for the upper yarn is positioned under the splicing device 101.
  • a first cutter member 221 for the lower yarn is positioned above the splicing device 101.
  • the first cutter member 220 for the upper yarn is composed of a fixed blade 220a and a movable blade 220b
  • the first cutter member 221 for the lower yarn is composed of a fixed blade 221a and a movable blade 221b. Then, the movable blades 220b, 221b are moved to cause the first current member 220 for the upper yarn to cut the upper yarn Y1, while causing the first cutter member 221 for the lower yarn to cut the lower yarn Y2.
  • an upper yarn air nozzle 230 is positioned between the upper yarn clamp member 110 and the first cutter member 220 for the upper yarn
  • a lower yarn air nozzle 231 is positioned between the lower yarn clamp member 111 and the first cutter member 221 for the lower yarn.
  • a second cutter member 120 for the upper yarn is positioned close to the upper yarn clamp member 110, and a second cutter member 121 for the lower yarn is positioned close to the lower yarn clamp member 111.
  • the second cutter member 120 for the upper yarn is composed of a fixed blade 120a and a movable blade 120b
  • the second cutter member 121 for the lower yarn is composed of a fixed blade 121a and a movable blade 121b. Then, the movable blades 120b, 121b are moved to cause the second current member 120 for the upper yarn to cut the upper yarn Y1, while causing the second current member 121 for the lower yarn to cut the lower yarn Y2.
  • the suction arms S1 S2 sucks parts of the upper yarn Y1 and lower yarn Y2 which are not gripped by the clamp members 110, 111, respectively, and parts of the yarns Y1, Y2 which have defective portions are discharged to the suction pipe KP.
  • the resin supply means 130 is a container shaped like a hypodermic syringe. It is composed of a main body 132, the supply port 131 and a cylinder 133. The main body 132 is attached to a pedestal CA that can be freely advanced and retreated. A photosetting resin is accommodated in the main body 132.
  • the pedestal CA is advanced.
  • shielding means 150 moves upward to open the supply port 131 of the resin supply means 130.
  • the supply port 131 of the resin supply means 130 then approaches the abutted portion of the upper yarn Y1 and lower yarn Y2.
  • the cylinder 133 is actuated to discharge a predetermined amount of photosetting resin to apply it to the abutted portion.
  • the photosetting resin is set by being irradiated with light from light irradiation means 140.
  • the upper yarn Y1 and the lower yarn Y2 are thus spliced together.
  • the photosetting resin is an ultraviolet setting resin
  • the light irradiation means 140 provides an ultraviolet ray.
  • the pedestal CA is retreated to its original position.
  • the supply port 131 thus moves away from the abutted portion of the upper yarn Y1 and lower yarn Y2.
  • the shielding means 150 returns to its original position.
  • Its plate portion 151 thus shields the supply port 131. This prevents the photosetting resin in the supply port 131 from being set. This in turn prevents the supply port 131 from being blocked.
  • a heater (not shown in the drawings) provided close to the resin supply means 130 enables the adjustment of viscosity of the photosetting resin in the resin supply means 130. This provides a viscosity suitable for the yarn number of the core yarns to be spliced together.
  • an upper yarn detecting means 160 is arranged close to the upper yarn clamp member 110.
  • a lower yarn detecting means 161 is arranged close to the lower yarn clamp member 111.
  • the detecting means 160, 161 operate in the state shown in Figure 10.
  • the upper yarn detecting means 160 detects the upper yarn Y1, while the lower yarn detecting means 161 detects the lower yarn Y2. If the upper yarn detecting means 160 fails to detect the upper yarn Y1 or the lower yarn detecting means 161 fails to detect the lower yarn Y2, i.e. if the upper yarn clamp member 110 fails to grip the upper yarn Y1 or the lower yarn clamp member 111 fails to grip the lower yarn Y2, then the operations succeeding the one shown in Figure 11 are halted.
  • Figure 16 shows a splicing device different from the first embodiment and corresponds to Figure 15 for the first embodiment.
  • the light irradiation means 140 in the first embodiment sets a photosetting resin by irradiating it with light diffused by, for example, a halogen lamp.
  • the light irradiation means 140 is a semiconductor laser 140' with a lens installed on a semiconductor laser diode. The lens condenses light emitted by the semiconductor laser diode, to emit a laser beam 141.
  • the laser beam 141 is allowed to impinge on the abutted portion of the upper yarn Y1 and lower yarn Y2 to set the photosetting resin.
  • the semiconductor laser 140' preferably has a wavelength,band of 400 nm to 420 nm. It is, for example, a blue or purple semiconductor laser manufactured by Nichia Chemical Co., Ltd.
  • the splicing process fails if the photosetting resin sticks to the yarns Y1, Y2 and clamp members 110, 111.
  • the abutted portion is irradiated with the laser beam 141 in a pinpointing manner. Consequently, even if the photosetting resin sticks to the yarns Y1, Y2 and clamp members 110, 111, the yarns Y1, Y2 and clamp members 110, 111 are not exposed to the laser beam 141. Consequently, the yarns Y1, Y2 and clamp members 110, 111 are prevented from sticking to one another. This makes the splicing operation always successful.
  • the pinpointing irradiation allows the photosetting resin to be set more appropriately than in the first embodiment.
  • Another advantage of the semiconductor laser 140' is that the photosetting resin is instantaneously set to increase operation speed, thus lengthening the lifetime of the light irradiation means 140.
  • the spliced portion of the yarns Y1, Y2 is irradiated with light from the semiconductor laser 140' in a pinpointing manner. This eliminates the need for the shielding means as in the case with the first embodiment. Therefore, the device as a whole can be simplified.
  • the inner layer fibers and the outer layer fibers can be spliced together. Consequently, the resulting spliced portion is stretchable and the two core yarns can be spliced together while maintaining their characteristics.
  • the adhesion method serves to prevent the projection of the spliced portion and to make the spliced portion short and small. Therefore, when the yarn is dyed, its discolored portion is short and unnoticeable.

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  • Spinning Or Twisting Of Yarns (AREA)
EP20030003790 2002-03-13 2003-02-19 Procédé pour l'épissage d'un fil à âme et bobinoir automatique à dispostif d'épissage de fils à âme Expired - Fee Related EP1344739B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002068027 2002-03-13
JP2002068027A JP3838354B2 (ja) 2002-03-13 2002-03-13 コアヤーンの糸継ぎ方法とその継ぎ目、及びコアヤーン用糸継ぎ装置を備えた自動ワインダ

Publications (3)

Publication Number Publication Date
EP1344739A2 true EP1344739A2 (fr) 2003-09-17
EP1344739A3 EP1344739A3 (fr) 2004-01-14
EP1344739B1 EP1344739B1 (fr) 2006-12-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030003790 Expired - Fee Related EP1344739B1 (fr) 2002-03-13 2003-02-19 Procédé pour l'épissage d'un fil à âme et bobinoir automatique à dispostif d'épissage de fils à âme

Country Status (4)

Country Link
EP (1) EP1344739B1 (fr)
JP (1) JP3838354B2 (fr)
CN (1) CN100352984C (fr)
DE (1) DE60310630T2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990303A1 (fr) * 2007-05-08 2008-11-12 SGL Kümpers GmbH & Co. KG Procédé et dispositif destinés à la liaison de divers matériaux de roving

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008070679A (ja) * 2006-09-15 2008-03-27 Fujifilm Corp フラットパネルディスプレイの製造方法及びその装置
TWI432621B (zh) * 2008-04-18 2014-04-01 Mitsubishi Rayon Co 碳纖維織條的製造裝置以及製造方法
JP5515823B2 (ja) * 2010-02-15 2014-06-11 村田機械株式会社 糸継装置
CN103437011B (zh) * 2013-08-19 2015-12-23 广东溢达纺织有限公司 耐磨纱线接头及其制备方法
CN108975074B (zh) * 2018-05-14 2020-03-27 巨石集团成都有限公司 一种玻纤纱连接方法
CN108970894B (zh) * 2018-10-17 2023-10-13 广东溢达纺织有限公司 纱线点胶机构及纱线点胶方法
JP7489188B2 (ja) * 2019-12-09 2024-05-23 Ｔｍｔマシナリー株式会社 糸条ハンドリング装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138326A1 (fr) * 1983-08-19 1985-04-24 RAYCHEM CORPORATION (a California corporation) Méthode et composition pour la liaison de fibres optiques
EP0226464A2 (fr) * 1985-12-11 1987-06-24 Wool Research Organisation Of New Zealand Inc. Jonction de brins fibreux flexibles
JP2001226038A (ja) * 2000-02-16 2001-08-21 Kaji Seisakusho:Kk クリール側とビーム側の糸つなぎ方法及びその装置
EP1195343A2 (fr) * 2000-10-03 2002-04-10 Murata Kikai Kabushiki Kaisha Procédé de raccordement de fils textiles, la liaison et bobinoir automatique équipé d'un dispositif de raccordement de fil

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57160871A (en) * 1981-03-26 1982-10-04 Murata Mach Ltd Joint method for spun yarn
JPH05154919A (ja) * 1991-12-03 1993-06-22 Fujikura Ltd Ｆｒｐ線条体の接続方法
JP3447250B2 (ja) * 1999-10-13 2003-09-16 株式会社ヒラシオ コアヤーン

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138326A1 (fr) * 1983-08-19 1985-04-24 RAYCHEM CORPORATION (a California corporation) Méthode et composition pour la liaison de fibres optiques
EP0226464A2 (fr) * 1985-12-11 1987-06-24 Wool Research Organisation Of New Zealand Inc. Jonction de brins fibreux flexibles
JP2001226038A (ja) * 2000-02-16 2001-08-21 Kaji Seisakusho:Kk クリール側とビーム側の糸つなぎ方法及びその装置
EP1195343A2 (fr) * 2000-10-03 2002-04-10 Murata Kikai Kabushiki Kaisha Procédé de raccordement de fils textiles, la liaison et bobinoir automatique équipé d'un dispositif de raccordement de fil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 25, 12 April 2001 (2001-04-12) -& JP 2001 226038 A (KAJI SEISAKUSHO:KK), 21 August 2001 (2001-08-21) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1990303A1 (fr) * 2007-05-08 2008-11-12 SGL Kümpers GmbH & Co. KG Procédé et dispositif destinés à la liaison de divers matériaux de roving
WO2008135280A1 (fr) * 2007-05-08 2008-11-13 Sgl Kümpers Gmbh & Co. Kg Procédé et dispositif de liaison de différents matériaux de stratifil

Also Published As

Publication number Publication date
DE60310630D1 (de) 2007-02-08
CN1443884A (zh) 2003-09-24
JP2003267632A (ja) 2003-09-25
EP1344739A3 (fr) 2004-01-14
EP1344739B1 (fr) 2006-12-27
CN100352984C (zh) 2007-12-05
DE60310630T2 (de) 2007-10-04
JP3838354B2 (ja) 2006-10-25

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