WO2016083616A1 - Système d'alimentation de métier à filer continu à anneaux de fil à âme, métier à filer continu à anneaux de fil à âme comprenant ledit système et procédé de filage de fil à âme utilisant ladite machine - Google Patents

Système d'alimentation de métier à filer continu à anneaux de fil à âme, métier à filer continu à anneaux de fil à âme comprenant ledit système et procédé de filage de fil à âme utilisant ladite machine Download PDF

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Publication number
WO2016083616A1
WO2016083616A1 PCT/EP2015/078046 EP2015078046W WO2016083616A1 WO 2016083616 A1 WO2016083616 A1 WO 2016083616A1 EP 2015078046 W EP2015078046 W EP 2015078046W WO 2016083616 A1 WO2016083616 A1 WO 2016083616A1
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WIPO (PCT)
Prior art keywords
filament
bobbins
continuous
unwinding
feeding
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PCT/EP2015/078046
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English (en)
Inventor
Julio Cesar Augusto BOURIO CASTRO
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Pinter Caipo, S.A.U.
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Filing date
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Application filed by Pinter Caipo, S.A.U. filed Critical Pinter Caipo, S.A.U.
Publication of WO2016083616A1 publication Critical patent/WO2016083616A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
    • D02G3/324—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic using a drawing frame

Definitions

  • the present invention relates to a feeding system of a "Core Spun” yarn ring-spinning machine, a “Core Spun” yarn ring-spinning machine which comprises said system and a method for spinning "Core Spun” yarn using said machine.
  • the present invention relates to a feeding system adapted to continuously spin "Core Spun” yarn combining one, two or more continuous filaments of a given elasticity with coating fibres.
  • the continuous filaments of the core of the "Duo Core spun” yarn have different modulus of elasticity, so that those with lower elasticity retain those with greater elasticity, facilitating recovery of the fabric made with this yarn.
  • "Duo Core” yarn allows the production of fabric with high recovery and high dimensional stability (garments do not lose their shape with use) which are highly appreciated by consumers.
  • the fabric made with "Duo Core” yarn has a finishing of cotton fibres or the like which allows for more aggressive finishings (holes, special rinsing) than those tolerated by traditional elastic articles.
  • the elastomeric filament of Lycra ® elastane fibre is combined with a semi-elastic continuous filament of bi-component polyester T- 400 ® brand by INVISTA to obtain high quality "Duo Core Spun" yarn.
  • This continuous T-400 ® filament by INVISTA is a filament of the generic elastomultiester fibre that is obtained by extrusion from the combination of different polymers (Directive 2006/3/CE, OJ L 5, 10.1 .2006 , p.14, added this new elastomultiester fibre to the list of generic names of fibres).
  • Elastomultiester fibre filaments have the advantage that they can be used directly after the extrusion without being subjected to a texturing process, but the disadvantage is that the winding process subsequent to extrusion determines and limits the supply of these filaments to a very specific bobbin format.
  • the elastomultiester fibre filament is replaced by an elasticized continuous filament of textured polyester.
  • This filament can be used to manufacture "Duo Core Spun" yarn, but has the disadvantage of being supplied in bobbins whose format differs from that for elastomultiester fibre filament.
  • This different format bobbin requires the installation of a creel at the top of the machine ("overhead creel") from which the filament must be unwound "in defile”.
  • This overhead creel enables a distance between spinning positions (spindles) of less than 80 mm to prevent the machine from losing yarn production output, but it requires the presence of a specific feeder device configured to positively feed, with controlled drafting, the filaments unwound "in defile”. This device is not suitable for the "deroule” unwinding of filaments from elastomultiester fibre bobbins.
  • the object of the present invention is to provide a feeding system of a "Core spun” yarn ring- spinning machine, which has the advantages described below.
  • the present invention provides a feeding system of a "Core Spun” yarn ring-spinning machine comprising; - first means configured for feeding a first continuous filament of elastane from a bobbin arranged for unwinding the filament keeping the bobbin moving on its own axis ("deroule" unwinding) and,
  • - second means configured for feeding a second continuous filament other than elastane from bobbins arranged for unwinding the filament keeping the bobbins moving on its own axis ("deroule" unwinding), said second means for feeding said second continuous filament comprising a first actuator device to actuate the movement of a first bobbin to feed the filament to a first spinning position, and a second actuator device to actuate the movement of a second bobbin to feed the filament to a second spinning position adjacent to the first spinning position.
  • the system is characterized by the fact that
  • the system further comprises an overhead creel dimensioned to support bobbins of up to 290 mm in length arranged for unwinding a continuous filament keeping the bobbins static ("defile" unwinding), the said creel having a plurality of individual tubes through which the filament of each of the bobbins runs from an inlet to and outlet to deliver the filament to one of said actuator devices, and in that,
  • said system comprises an accessory tool provided with at least two dragging bodies to simultaneously drag by means of one of said actuator devices two different continuous filaments coming from the bobbins located in the creel when the said first or second bobbin is not present, at least two outlets of these individual tubes of the creel being arranged in correspondence with said dragging bodies so that said two dragging bodies of the accessory tool can feed said two filaments to said two adjacent spinning positions with only one of the actuator devices, the other actuator device being left free to optionally actuate the unwinding of a third continuous filament of a "Core Spun" yarn.
  • the feeding system comprises first means configured for feeding a first continuous filament of elastane (for example, a filament of elastane or spandex fibre, Lycra ® Brand) from bobbins arranged for "deroule" unwinding
  • a first continuous filament of elastane for example, a filament of elastane or spandex fibre, Lycra ® Brand
  • - second means for feeding a second continuous filament other than elastane for example, a continuous elastomultiester fibre filament
  • said second means comprise a first device to actuate the movement of a first bobbin and to feed a filament to a first spinning position, and a second device located in an upper position to actuate the movement of a second bobbin and to feed a filament to a second spinning position adjacent to the first, and by the fact that;
  • said second means include an accessory tool configured to operate the simultaneous dragging of two different continuous filaments when the first or second bobbin is not present, said different filaments (e.g. continuous elastic filaments of textured polyester) coming from different bobbins located in a creel of the machine frame, said accessory tool making it possible to feed the filaments to two adjacent spinning positions with only one of the devices, so that the other device is free to optionally actuate the unwinding of a third continuous filament of "Core Spun" yarn.
  • said accessory tool configured to operate the simultaneous dragging of two different continuous filaments when the first or second bobbin is not present, said different filaments (e.g. continuous elastic filaments of textured polyester) coming from different bobbins located in a creel of the machine frame, said accessory tool making it possible to feed the filaments to two adjacent spinning positions with only one of the devices, so that the other device is free to optionally actuate the unwinding of a third continuous filament of "Core Spun" yarn.
  • said accessory tool configured to operate
  • the feeding system claimed has the advantage of adapting to different continuous filaments, supplied on different format bobbins, so that a single machine can be used without being modified to produce "Core Spun” yarn with continuous elastomultiester fibre filament, or alternatively, to produce "Core Spun” yarn using elasticized continuous filament of textured polyester.
  • continuous filaments of textured polyester and elastomultiester fibre are supplied in a different bobbin format that requires a different unwinding system.
  • continuous filament of textured polyester is supplied with a bobbin format whose tube length exceeds 150 mm requiring the bobbins to be placed on a creel ("overhead creel") of the machine from which the filament must be unwound "in defile”.
  • elastomultiester fibre bobbins have a tube length which allows them to be unwound "in deroule” using devices which actuate the rotary motion of the bobbins.
  • the system incorporates an accessory tool configured to actuate the dragging of the textured polyester filament from the creel when a bobbin of elastomultiester fibre is not present.
  • an accessory tool configured to actuate the dragging of the textured polyester filament from the creel when a bobbin of elastomultiester fibre is not present.
  • the tool claimed has the advantage of being configured to actuate the simultaneous dragging of two continuous filaments which may be individually fed to two adjacent spinning positions.
  • the other actuator (another pair of rotating cylinders) of the machine located at the upper position is left free.
  • this device can be used to actuate the unwinding of a third filament "Core Spun” yarn.
  • a versatile machine is obtained that adapts to different bobbin formats and is able to produce different types of "Core spun” yarn with a single feed system.
  • the machine claimed is suitable for manufacturing "Core Spun” yarn with a core that can combine up to three continuous filaments.
  • the accessory tool comprises at least two dragging bodies to drag two continuous filaments coming from bobbins located on a creel on the machine frame, one of the system devices being capable of actuating the movement of both dragging bodies when a bobbin is not present in order to feed both filaments to two adjacent spinning positions.
  • said devices each comprise rotating cylinders arranged extending in parallel on the machine frame to actuate the motion of a dragging body or of a bobbin when the dragging body or bobbin rests on these cylinders.
  • said cylinders have a rolling surface provided with grooves or ridges to facilitate gripping the non-elastomeric filament and again advantageously the cylinders are dimensioned to actuate the motion of a bobbin of more than 250 mm in diameter, such as for example, a bobbin of continuous filament of elastomultiester fibre T-400 ® Brand by INVISTA.
  • said system comprises a processing and control unit programmed to change the speed of the rotating cylinders of the devices depending on the type of continuous filament being unwound.
  • the processing and control unit programs itself to change the speed of the rotating cylinders depending on the type of filament, adapting it to the speed of the drafting system output roller to provide adequate drafting ratio.
  • said dragging bodies are cylindrical bodies dimensioned to drag the continuous filament over the rotating cylinders by such rotating cylinders actuating the movement of said cylindrical bodies.
  • the system comprises a bobbin support creel provided with a plurality of tubes to deliver the continuous filament coming from the bobbins to the device which actuates the movement of the accessory filament-dragging bodies.
  • a bobbin support creel provided with a plurality of tubes to deliver the continuous filament coming from the bobbins to the device which actuates the movement of the accessory filament-dragging bodies.
  • Such creel is an overhead creel dimensioned to support bobbins of up to 290 mm in length, said creel including a plurality of individual tubes through which the filament of each of the bobbins runs from an inlet to an outlet. The outlet of each of these individual tubes is arranged in correspondence with the rotating cylinders of the device that actuates the accessory filament- dragging bodies when the bobbins are not present.
  • said second means comprise a plurality of supports dimensioned to hold the dragging bodies or the bobbins on the rotating cylinders, each support being pivotally attached to a machine frame in order to raise said dragging bodies or bobbins onto the cylinders in order to perform a replacement or to repair a filament breakage.
  • the system claimed has the advantage of greatly facilitating production operations related to the handling of continuous filament from the bobbins located in the creel. Indeed, the system claimed can instantaneously stop or interrupt the filament feeding in order to perform a replacement or repair, by simply raising the dragging bodies on the cylinders, preventing the filament from unthreading inside the creel tubes, or from momentarily accumulating. Moreover, this lifting support makes it possible to easily start up the bobbins one by one, when starting on a production lot.
  • each one of said supports comprises a grip handle which is configured as a guide for the unwinding filaments.
  • each of said supports is dimensioned to hold two cylindrical dragging bodies arranged adjacent on the rotary cylinders, while the same support grip handle acts as guide for the filaments unwound by both dragging bodies.
  • the first means for feeding the elastane elastomer filament comprise rotating cylinders arranged extending in parallel under the device which actuates the dragging bodies or the bobbins of the second and third filament.
  • These rotating cylinders are dimensioned to actuate the motion of a bobbin of 180 mm in diameter, such as a bobbin of elastomer filament of elastane or spandex fibre, Lycra ® brand.
  • the present invention provides a ring-spinning machine which spins "Core spun" yarn combining one, two or three continuous filaments with coating roving fibres, that it is characterized by the fact that it incorporates the claimed feeding system.
  • This machine incorporates at least one drafting train which is provided at each spinning position with a pair of rollers to feed a roving fibre bundle, and a pair of rollers to feed one or more continuous filaments.
  • the spinning positions of the machine are placed 80 mm or less away from each other in order not to reduce the output.
  • the machine comprises separate sensors integrated in a single circuit to detect breakage of one of the filaments when the filaments are fed to the same drafting system of the machine, said sensors being arranged in a support of the machine frame located below the first means which continuously feed the elastomeric filament (elastane or spandex fibre, Lycra ® . Brand).
  • elastomeric filament elastane or spandex fibre, Lycra ® . Brand
  • the support on the frame in which the sensors are arranged comprises a part that acts as a guide and is provided with holes to insert the filaments.
  • the support on the frame in which the sensors are arranged comprises a second part which acts as a guide and is provided with at least one hole to insert a roving fibre bundle fed to the same drafting system of the machine.
  • some independent sensors integrated in a single circuit control the feeding of continuous filaments that make up the core of the "Core Spun" yarn, since these filaments converge in a part that acts as a guide and is arranged in the same support on which the sensors are located.
  • this support also has a part that acts as a guide for the roving fibre bundle.
  • the present invention provides a method for spinning "core spun” yarn using the claimed machine, comprising the following steps; a Feeding into a drafting train a first continuous elastomer filament of elastane from a bobbin arranged to be unwound "in deroule", b Feeding into the same drafting train a second continuous non-elastane filament from bobbins located in an overhead creel and arranged for unwinding the filament keeping the bobbins static ("defile” unwinding), said feeding taking place by using for this purpose an accessory tool provided with two dragging bodies to simultaneously drag two different continuous filaments coming from said bobbins located in the overhead creel, said dragging bodies being actuated by means of one of said actuator devices when a bobbin is not present on said actuator device,
  • said filament in step b), is a continuous filament having elastic properties of textured polyester and in step c) said filament is a continuous filament not made of elastane, for example, a filament selected from between a PBT polyester filament or a polyamide filament, or a similar synthetic filament other than elastane.
  • Deroule unwinding means unwinding the filament keeping the bobbin moving on its own axis.
  • Defile unwinding means unwinding the filament keeping the bobbin static.
  • Continuous filament means a textile fibre filament of indefinite length, preferably a length of synthetic fibre obtained by extrusion.
  • Continuous elastomer filament of elastane means a continuous fibre filament, generically named elastane or spandex whose elongation at break is equal to or over 100% and is capable of recovering its original length when no longer stretched.
  • This continuous elastomer filament may be, for example, an elastane or spandex fibre filament such as that sold under the Lycra ® trademark, or a continuous elastomer filament having elastic properties similar to those of elastane.
  • Continuous filament other tan elastane means a continuous filament having an elongation at break lower than 100%, for example, a filament having elastic properties with an elongation at break under 50%, and that is capable of recovering its original length when no longer stretched.
  • This continuous filament may be, for example, an elastomultiester fibre filament, a polyamide filament or a textured polyester filament.
  • Continuous filament of elastomultiester fibre means a continuous filament obtained by extrusion of a fibre with elastic properties made from a combination of different polymers, preferably a bi-component fibre filament, T-400 ® brand by INVISTA, particularly a fibre filament comprising 40% polyester (Type 3-GT) and 60% polyester (Type 2- GT).
  • This fibre is capable of stretching up to 50% and recovering its original length when no longer stretched. It is supplied on bobbins with less than 150 mm in tube length, for example 1 15 mm in length and 275 mm in diameter.
  • Elastomultiester fibre filaments can be directly used for weaving without having to be previously textured.
  • "Core Spun" yarn means a yarn that combines a core of one, two or even three continuous filaments with a roving fibre bundle for filament coating.
  • Duo Core Spun yarn means a thread or yarn that combines a core of two continuous filaments with a coating roving fibre bundle, wherein the two continuous filaments have a different modulus of elasticity.
  • a "Duo Core Spun” yarn may be, for example, a yarn with a core of an elastomeric filament of Lycra ® brand elastane and a continuous elastomultiester fibre filament.
  • a "Duo Core Spun” yarn may be a yarn with a core of an elastomeric filament of elastane and a continuous filament with elastic properties of textured polyester.
  • Roving fibre bundle means a bundle of staple fibres of cotton, wool, viscose, or other similar natural or artificial staple fibres, intended for coating one or more continuous filaments in the "Core spun or" Duo Core Spun "yarn spinning.
  • Figure 1 shows a schematic elevation view of a "Core Spun" yarn spinning machine incorporating the claimed feeding system to work with different bobbin formats and to manufacture on the one hand, a three-filament core yarn and on the other hand, a two-filament core yarn.
  • This figure shows the feeding of a continuous filament other than elastane from an overhead creel using the accessory tool that enables dragging the filament over the rotating cylinders.
  • Figure 2 is a perspective view of the "Core Spun" yarn spinning machine of Figure 1 . This figure shows the feeding of three continuous filaments and a roving fibre bundle using the accessory tool of the system.
  • Figure 3 shows a detail of Figure 2 depicting the route of the continuous filament located in the creel to the cylinders which drive the accessory dragging bodies of the tool.
  • Figure 4 shows a perspective view of the machine of Figure 1 spinning a yarn with a core of two continuous filaments.
  • One of the filaments of the "Core” is a filament other than elastane which is supplied from the creel by means of the accessory tool.
  • Figure 5 is another perspective view of the "Duo Core" yarn spinning machine of figure 1 showing an alternative operation to Figure 4 of spinning yarn with a core of two filaments, such as an elastomultiester fibre filament T-400 Lycra ® brand by INVISTA and an elastomeric filament of elastane or spandex.
  • a core of two filaments such as an elastomultiester fibre filament T-400 Lycra ® brand by INVISTA and an elastomeric filament of elastane or spandex.
  • Figure 6 shows a detail of the sensors that control the feeding of continuous filaments of "Duo Core Spun" yarn during the spinning process. Description of a preferred embodiment
  • FIG. 1 Described below is an embodiment of the feeding system 1 of the present invention with reference to Figures 1 to 6. These figures depict different views of a ring-spinning machine 2 for continuous yarn spinning included in the claimed system 1 .
  • This system 1 adapts to different bobbin formats, enabling the production of different types of "Core Spun" yarn on the same machine 2 without needing to perform modifications.
  • Figures 1 to 6 show different views of the machine 2 and of the feeding system 1 in operation.
  • Figure 1 shows an elevation view of a machine 2 with two fibre drafting rollers and a distance between adjacent spinning positions 30, 31 of 80 mm.
  • the same Figure 1 depicts on the one hand, the production of "Core Spun” yarn 3a which incorporates a core of three continuous filaments, and on the other hand, the production of a "Duo Core Spun” yarn 3b that incorporates a core of only two continuous filaments.
  • a first continuous filament 9 of elastane fibre is an elastane filament, Lycra® brand (see in the Figures filament 9 coming from the bobbins 10 that are disposed on rotary cylinders 1 1 for "deroule” unwinding),
  • a second continuous filament 4a other than elastane for example a continuous elastic filament of textured polyester (see in Figures 1 to 4 filament 4a coming from bobbins 5 of 290 mm in length and 210 mm in diameter which are arranged in an overhead creel 6 so that the machine 2 does not reduce its output.)
  • the accessory tool 15 is used to unwind this filament 4a.
  • a third continuous filament 29 (see in Figures 1 to 3 filament 29 coming from bobbins 28 that are disposed on rotary cylinders 26 for "deroule” unwinding without the machine 2 reducing its output),
  • a coating roving fibre bundle 12 i.e., a bundle 12 of staple fibres suitable for the continuous spinning process, such as cotton (see in Figure 1 the roving fibre bundle 12 coming from the bobbins 13 hanging from the roving holder 14).
  • figures 2 to 4 do not show the roving bundle of yarn 3a.
  • this elastomer filament 9 is a filament of elastane, Lycra® brand (see in Figures 1 and 5 filament 9 coming from bobbins 10 that are disposed on rotating cylinders 1 1 for "deroule” unwinding),
  • a second filament 4b other than elastane for example a continuous filament of elastomultiester fibre T-400® brand by INVISTA (see in Figures 1 and 5 filament 4b coming from bobbins 7 of 1 15 mm in length and 275 mm in diameter, which are arranged on rotating cylinders 8, 26 for "deroule” unwinding without machine 2 reducing its output, -
  • a coating roving fibre bundle 12, i.e., a bundle 12 of staple fibres suitable for the continuous spinning process, such as cotton see in Figure 1 and 5, the roving fibre bundle 12 coming from the bobbins 13 hanging from the roving holder 14).
  • the system 1 claimed also allows producing any other "Core Spun” yarn other than those described, without needing to modify the machine 2.
  • the system 1 could produce a "single Core Spun” yarn consisting of a core of single continuous filament 4a of textured polyester coated with a roving fibre bundle 12, or a filament 4b of elastomultiester fibre (polyester bi-component fibre, T-400® Lycra® brand) also coated with a roving fibre bundle 12.
  • Figure 4 shows an embodiment of the system 1 feeding "Duo Core Spun" yarn with a core of two filaments in which one of the filaments 4a of each yarn is supplied from the creel 6.
  • the continuous filament of the single "Core Spun” yarn can be any filament from a bobbin of any length or diameter. This is thanks to the fact that with the system 1 claimed, a continuous filament other than elastane can always be unwound either "in deroule” or “in defile” using a single actuator device (the same rotating cylinders 8), irrespective of the bobbin format, using, where necessary, an accessory tool 15, as described below.
  • the feeding system 1 of the present invention is incorporated in a continuous yarn spinning machine 2 combining on a common frame 16, some first means for feeding a first continuous elastomer filament 9 of elastane, and some second means for feeding onto the same drafting train 17 a second continuous filament 4a, 4b other than elastane coming either from bobbins 7 arranged for "deroule” unwinding or from bobbins 5 located in a creel 6 ("defile” unwinding).
  • the second means feeding the second continuous filament 4a, 4b comprise;
  • a first pair of rotating cylinders 8 arranged extending in parallel on the frame 16 of the machine 2 to actuate the movement of said bobbins 7, or alternatively, the movement of the dragging bodies 18 of an accessory tool 15 which is arranged on the above rotary cylinders 8 when the bobbins 7 are not present.
  • This first pair of cylinders 8 allows feeding the second filament 4a, 4b to first spinning positions 30 of the machine 2
  • - A second pair of rotating cylinders 26 arranged extending in parallel on the machine frame 16 to actuate the movement of second bobbins 7 capable of feeding the second filament 4a, 4b to adjacent spinning positions 31 .
  • this second pair of cylinders 26 may optionally be used to feed a third filament 29 to first spinning positions 30 when the accessory tool 15 of the system 1 is in operation.
  • the accessory tool 15 used for unwinding the filaments 4a of the creel 6 comprises two dragging bodies 18 that are cylindrical bodies dimensioned so as to be placed on the rotating cylinders 8 when the bobbin 7 of the other elastomultiester fibre filament 4b is not present. These cylindrical bodies are actuated simultaneously by the cylinders 8 in order to drag to the drafting train 17 the filament 4a coming from the bobbins 5 of the creel 6 (see schematic representation in Figure 1 ).
  • the creel 6 includes a plurality of tubes 19 to deliver the filament 4a of each bobbin 5 to the cylinders 8 that actuates the movement of the dragging bodies 18 of each filament 4a.
  • Figure 4 shows a detail of the feeding system 1 of the machine 2 showing the route of the continuous filament 4a of textured polyester running inside the tubes 19 from an inlet 19a to an outlet 19b.
  • each pipe 19 is arranged in correspondence with a dragging body 18 of the tool 15 resting on the rotating cylinders 8.
  • a dragging body 18 drags the continuous filament 4a and actuates the smooth "defile" unwinding of the filament 4a located on bobbins 5 of the overhead creel 6 of the machine 2.
  • the length of the dragging body 18 can be very short, similar to the approximate distance of 80 mm between the spinning positions of the machine 2.
  • the dragging bodies 18 corresponding to the different spinning positions 30, 31 of the machine 2 can be arranged adjacent on the rotating cylinders 8, which greatly facilitates handling operations.
  • the feeding system 1 claimed also comprises a plurality of supports 20 that each holds the bobbins 7, 28 or the dragging bodies 18 on the rotating cylinders 8.
  • These supports 20 are pivotally attached to the frame 16 of the machine 2 in order to raise the dragging bodies 18 over the cylinders 8 when wishing to stop or interrupt the filament 4a feeding for the purpose of carrying out a replacement or repair due to filament breakage.
  • production operations related to handling the filament 4a which unwinds at height are much easier for operators, since these lifting supports 20 minimize incidents related to the unthreading of filaments inside the tubes 19.
  • each of the supports 20 has a grip handle 21 which is configured as a guide for the filaments 4a, 29 which unwind by the action of the movement of accessory dragging bodies 18 or of the bobbins 7, 28.
  • Figure 5 shows the alternative operation of the machine 2 adapted to manufacture "Duo Spun Core” yarn 3b with a filament 4b of elastomultiester fibre (polyester bi-component, T-400 Lycra ® by INVISTA).
  • the "Duo Core Spun” yarn 3b obtained with these fibres is a high quality yarn 3b being ideal for the manufacture of high elasticity and high recovery fabric.
  • the second filament is a filament 4b from a 1 15-mm-long bobbin 7, which is arranged on the rotating cylinders 8 for "deroule” unwinding.
  • the accessory tool 15 it is not necessary to use the accessory tool 15 to unwind the second filament 4b of the "Duo Core Spun" yarn 3b, since this filament 4b is unwound “in deroule” by actuating a bobbin 7 located on the rotary cylinders 8.
  • Figures 2 and 3 show two details of the operation of the machine 2 adapted to manufacture "Core Spun” yarn 3a with a core of three continuous filaments 9, 4a, 29.
  • the first filament 9 is an elastomeric filament of elastane or the like coming from a bobbin 10 disposed on the rotary cylinders 1 1 for "deroule” unwinding.
  • the second filament 4a is a continuous filament other than elastane that unwinds "in defile” from the creel 6 by means of the accessory tool 15 which actuates the dragging of the filament 4a over the rotary cylinders 8.
  • the third filament 29 is a continuous filament that unwinds "in deroule” from a bobbin 28 disposed on the rotary cylinders 26 of an actuator device which is situated on an upper floor.
  • the accessory tool 15 is configured to actuate the simultaneous dragging over the same rotary cylinders 8 of two filaments 4a which are fed to two different adjacent spinning positions 30, 31 .
  • the rotating cylinders 26 of the actuator of the upper floor are left free to actuate the unwinding of the third continuous filament 29.
  • the feeding system 1 claimed comprises a processing and control unit programmed to change the speed of the rotating cylinders 8, 26 depending on the type of continuous filament 4a, 4b, 29 being unwound.
  • the processing and control unit programs itself to change the speed of the rotating cylinders 8 and to adapt it to the speed of the output roller 27 of the drafting train 17 to provide suitable drafting to the filament 4a unwinding from the creel 6.
  • Figure 6 shows a detail of the sensors 22 that control the feeding of the first filament 9 and the second filament 3b of "Duo Core Spun" yarn 4b during the spinning process.
  • FIG. 2 also shows the sensors 22 that control, in this case, the first filament 9, the second filament 4a, and the third filament 29 of the "core spun" yarn 3a during the spinning process.
  • sensors 22 are arranged on a support 23 of the frame 16 comprising a part 24 provided with holes which acts as a guide for the first 9 and second 4b filament.
  • This part 24 gathers the two filaments 4b and 9 so that they can be read by independent sensors 22 integrated in a single circuit housed in the support 23.
  • Each sensor 22 is adapted to detect the presence of a different type of filament.
  • the support 23 incorporates a second part 25 provided with holes which also acts as a guide for the roving fibre bundle 12. The existence of the sensors 22 that detect all the filaments gathered in a single support 23 greatly facilitates the production operations of the machine 2

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  • Spinning Or Twisting Of Yarns (AREA)

Abstract

La présente invention concerne un système d'alimentation (1) destiné à un métier (2) à filer continu à anneaux de fil à âme comprenant un premier moyen (11) conçu pour assurer une alimentation en un premier filament continu (9) d'élasthanne à partir d'une bobine (10) conçue pour le déroulement, un second moyen conçu pour assurer une alimentation en un deuxième filament continu (4b, 29) autre que celui d'élasthanne à partir de bobines (7, 28) conçues pour le déroulement, ledit second moyen comprenant un premier dispositif d'actionnement (8) permettant d'actionner le mouvement d'une première bobine (7) en vue d'alimenter en filament (4b) une première position de filage (30), et un second dispositif d'actionnement (26) permettant d'actionner le mouvement d'une seconde bobine (7, 29) en vue d'alimenter en filament (4b) une seconde position de filage (31) adjacente à la première position de filage, ledit système comprenant un outil accessoire (15) pourvu de deux corps de tirage (18) de sorte à tirer de manière simultanée, et au moyen de l'un desdits dispositifs d'actionnement, deux différents filaments continus (4a) en provenance de bobines (5) situées dans un cantre suspendu (6) en cas d'absence de ladite première ou seconde bobine (7), ledit outil accessoire (15) permettant d'assurer une alimentation en lesdits deux filaments (4a) deux positions de filage (30,31) adjacentes uniquement au moyen de l'un des dispositifs d'actionnement (8), de sorte que l'autre dispositif d'actionnement (26) soit laissé libre afin d'actionner éventuellement le déroulement d'un troisième filament continu (29).
PCT/EP2015/078046 2014-11-28 2015-11-30 Système d'alimentation de métier à filer continu à anneaux de fil à âme, métier à filer continu à anneaux de fil à âme comprenant ledit système et procédé de filage de fil à âme utilisant ladite machine WO2016083616A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14382483.7 2014-11-28
EP14382483.7A EP3026160A1 (fr) 2014-11-28 2014-11-28 Système d'alimentation pour un métier à filer à anneaux, métier à filer à anneaux comprenant un tel système et une procédure de filature d'un fil à âme au moyen de ladite machine

Publications (1)

Publication Number Publication Date
WO2016083616A1 true WO2016083616A1 (fr) 2016-06-02

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EP (1) EP3026160A1 (fr)
WO (1) WO2016083616A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US11598027B2 (en) 2019-12-18 2023-03-07 Patrick Yarn Mills, Inc. Methods and systems for forming a composite yarn

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US20060179810A1 (en) * 2005-02-11 2006-08-17 Tianyi Liao Stretch woven fabrics
WO2009141469A1 (fr) * 2008-05-20 2009-11-26 Pinter, S.A. Procédé et appareil pour la fabrication de fils élastiques
WO2012062480A2 (fr) * 2010-11-12 2012-05-18 Sanko Tekstil Isletmeleri San. Ve Tic. A.S. Fil composite extensible, procédé et tissu
CN103741303A (zh) * 2013-12-27 2014-04-23 浙江庆茂纺织印染有限公司 三芯纱的纺纱装置及工艺

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US20060179810A1 (en) * 2005-02-11 2006-08-17 Tianyi Liao Stretch woven fabrics
WO2009141469A1 (fr) * 2008-05-20 2009-11-26 Pinter, S.A. Procédé et appareil pour la fabrication de fils élastiques
WO2012062480A2 (fr) * 2010-11-12 2012-05-18 Sanko Tekstil Isletmeleri San. Ve Tic. A.S. Fil composite extensible, procédé et tissu
CN103741303A (zh) * 2013-12-27 2014-04-23 浙江庆茂纺织印染有限公司 三芯纱的纺纱装置及工艺

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MAAS MECHTHILD: "Pinter: new dual core yarns for denim fabrics", 20 November 2014 (2014-11-20), XP002740108, Retrieved from the Internet <URL:http://textinations.com/frontend/extranet/view_news.php?id=1141647931192461> [retrieved on 20150527] *
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11598027B2 (en) 2019-12-18 2023-03-07 Patrick Yarn Mills, Inc. Methods and systems for forming a composite yarn

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