EP0028939B1 - Vorrichtung zur Herstellung eines gedrehten Noppengarns - Google Patents

Vorrichtung zur Herstellung eines gedrehten Noppengarns Download PDF

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Publication number
EP0028939B1
EP0028939B1 EP80304048A EP80304048A EP0028939B1 EP 0028939 B1 EP0028939 B1 EP 0028939B1 EP 80304048 A EP80304048 A EP 80304048A EP 80304048 A EP80304048 A EP 80304048A EP 0028939 B1 EP0028939 B1 EP 0028939B1
Authority
EP
European Patent Office
Prior art keywords
yarn
arm
effect
air
core
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.)
Expired
Application number
EP80304048A
Other languages
English (en)
French (fr)
Other versions
EP0028939A2 (de
EP0028939A3 (en
Inventor
Paul William Eschenbach
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.)
Milliken Research Corp
Original Assignee
Milliken Research Corp
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 US06/093,199 external-priority patent/US4305245A/en
Priority claimed from US06/159,691 external-priority patent/US4330988A/en
Application filed by Milliken Research Corp filed Critical Milliken Research Corp
Priority to AT80304048T priority Critical patent/ATE31946T1/de
Publication of EP0028939A2 publication Critical patent/EP0028939A2/de
Publication of EP0028939A3 publication Critical patent/EP0028939A3/en
Application granted granted Critical
Publication of EP0028939B1 publication Critical patent/EP0028939B1/de
Expired legal-status Critical Current

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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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/162—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam with provision for imparting irregular effects to the yarn
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl

Definitions

  • This invention relates to apparatus for making a novelty yarn by combining a false twisted core yarn and a false twisted effect yarn in an air jet to supply a continuous, multi-filament slub yarn.
  • the apparatus described in US 4 159 619 uses a cam to oscillate a yarn deflector arm and produces a yarn with regularly spaced slubs, unless a pattern disturber is used to interrupt the rotation of the cam element.
  • the object of the invention is to provide a simple apparatus for producing a new yarn and the apparatus according to the invention is set out in claim 1.
  • the apparatus of Figure 1 produces a novelty yarn composed of a core yarn 10 and an effect yarn 12.
  • both yarns are continuous, multi-filament, partially oriented polyester yarns, but other partially oriented or fully oriented synthetic, continuous multi-filament yarns such as nylon, Dacron can be employed.
  • the core and effect yarns 10 and 12 are combined in an air jet 14 to produce the slub yarn 16 which is delivered by take-up nip rolls 18 and 20 through a secondary heater 21 to a take-up roll 22.
  • the core yarn 10 is delivered from a package 24 to a false twist zone by first delivery rolls 26 and 28.
  • Second delivery rolls 30 and 32 draw the core yarn 10 as it passes through a primary heater 34 and a false twist device 36, illustrated schematically as friction discs, and supplies it to the air jet 14.
  • the effect yarn 12 is delivered from a package 37 to a false twist zone by first delivery rolls 38 and 40 and is drawn by second delivery rolls 42 and 44 as it pases through a primary heater 46 and a false twist device 48, again illustrated as friction discs. From the delivery rolls 42 and 44, the effect yarn 12 is delivered to the air jet 14 through a path deviation device 50 which operates in a manner hereinafter explained.
  • the speeds of the delivery rolls are selected to provide the desired result in the yarns produced.
  • the speeds of the rolls 26, 28, 38 and 40 are such that speed of the effect yarn 12 being delivered thereby is greater than the speed of the core yarn 10.
  • the speeds of the delivery rolls 30, 32, 42 and 44 are such that the delivery speed of the effect yarn 12 is greater than the speed of the core yarn 10.
  • the speeds of the rolls 30, 32, 42 and 44 are such as to draw the effect and core yarns.
  • the speed of the delivery rolls 18 and 20 is such that the slub yarn 16 delivered therefrom is at a speed lower than the speed of either the core yarn 10 or the effect yarn 12, respectively, from the rolls 30 and 32 or 42 and 44.
  • the combined yarn 16 ( Figure 3) consists of slub sections 51, lean sections 52 and nubs 54.
  • the slub sections 51 and the nubs 54 are denser than the lean sections and contain a plurality of substantially circular loops 53 having a diameter range of 0.076 mm to 0.25 mm.
  • the lengths of the slub sections and lean sections are random but the nubs will always be shorter than the slubs and closely adjacent thereto.
  • the slub sections 52 and nubs 54 are basically allowed to form by the path deviation device 50 which controls the path and consequently the velocity of the effect yarn 12.
  • the core yarn 10 is supplied directly from the delivery rolls 32 into the entrance of the air jet 14 while the effect yarn 12 is supplied from the delivery rolls 42 and 44 through the guide members 56 and 58 then into the air jet.
  • the path deviation device 50 When the path deviation device 50 is not actuated the yarn 12 will pass straight downwardly through the guide members 56 and 58, as indicated by dashed lines in Figure 2 and then be directed into a conventional air jet 14 wherein it is commingled with the core yarn 10 to form yarn represented by the lean sections 52.
  • the yarn deviation force 50 consists of a rod 59 with a main portion 60 and a finger portion 62 perpendicular to the main portion 60.
  • the rod is fixed to a gear 64 freely rotatable on a stub shaft 66 with the gear teeth in mesh with the teeth of a rack 68.
  • the rack 68 is connected to the piston rod 70 of an air cylinder 72 supplied air under pressure through a solenoid operated valve 74.
  • the actuation of the solenoid valve is controlled by a random signal generator 76 of the type disclosed in US Patent Specification 4,160,359 which randomly supplies pulses to the DC power supply 78 to cause power to be supplied randomly to the solenoid valve 74.
  • the spring 80 is so selected as to allow the rod 59 to bounce when it reaches the extreme left hand position ( Figures 1 and 2) upon exhaustion of air from the cylinder 72 to form a small loop in the yarn 12, similar to the loop 55, and then when it comes to rest the smaller nub 54 will be formed in the combined yarn 16 in the same manner that the slub 51 is formed.
  • the air jet 14 is a commercially available type and does not itself form a part of the invention other than that it accomplishes the desired result of combining the yarns as shown in Figure 3.
  • the core yarn 10 and the effect yarn 12 are supplied into the air jet 14 through an entrance 82 and the combined yarn leaves through an outlet 84, partially encircles an air impact device 86 and is directed to the take-up roll 22 by the delivery rolls 18 and 20.
  • Air under pressure is supplied to the air jet 14 via a conduit 88 into a pressure chamber 90 from whence it is directed against the yarns 10 and 12 through passages 92 and is ejected out of the outlet 84 against the air impact device 86.
  • the device 86 acts to increase turbulence in the jet 14 to enhance the commingling of the yarn filaments and increase the velocity of the yarn through the air jet 14.
  • the core and effect yarns are both 190 denier, 68 filament, 56T, partially oriented polyester yarn.
  • the resultant combined yarn is 270 denier polyester yarn having slubs in the range of 5 to 11.5 cm in length and nubs in the range of 0.6 to 1.9 cm in length.
  • the combined yarn is formed under the following parameters:
  • Figure 4 is a modification of the yarn deviation device 50 of Figure 2 with like elements being denoted with the same reference numbers.
  • the basic difference between the device of Figure 2 and Figure 4 is the use of an additional pair of guide members 57 and 59 for the core yarn 10.
  • both the core yarn 10 and the effect yarn 12 are threaded on the finger portion 62 of the rod 59.
  • the yarn, between the set of guide members to which the finger portion 62 is being moved towards is being allowed to be taken into the jet at a high overfeed rate while the yarn between the other set of guide members is being supplied at a low overfeed rate as it accumulates yarn in the extended yarn loop.
  • this system provides much larger relative overfeed rates at high throughput speeds. This is accomplished by the action of a low yarn overfeed rate in the yarn accumulation loop and a high yarn overfeed rate in the yarn loop being let off as the finger portion 62 moves toward the guide members for such yarn.
  • the core and effect yarns are both 105 denier, 34 filament, 56T, partially oriented polyester yarn.
  • the resultant combined yarn is 170 denier polyester yarn having slubs in the range of 0.95 to 1.9 cm in length and nubs in the range of 0.16 to 0.6 cm in length.
  • the nubs can be six times larger in diameter than the main body of yarn.
  • the combined yarn is formed under the following parameters:
  • Random signal generator on for about 0.02 to 0.06 seconds and off for 0.04 seconds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (5)

1. Vorrichtung zur Herstellung eines Noppengarns, mit Einrichtungen zum Zuführen eines Effektgarns und eines Kerngarns durch einen Falschdrallgeber (36, 48) hindurch, einer Vorrichtung zur Garnverwirrung im Luftstrom, und einer Vorrichtung (50) zur Änderung der Garnbewegungsbahn, welche so ausgelegt ist, daß sie die Bewegungsbahn des Effektgarns zwischen dem Falschdrallgeber (48) und der Luftstromvorrichtung (14) intermittierend verlängert und verkürzt, und einen schwenkbar gelagerten Arm (60) umfaßt, dessen distales Endstück (62) am Garn anliegt, gekennzeichnet durch eine Betätigungsvorrichtung (70, 72), die den Arm unregelmäßig hin- und herschwenkt, und dadurch, daß am Ende jeder Bewegungsbahnverkürzung ein Zurückprellen des Arms ermöglicht ist, um Knoten nahe an den Noppen zu erzeugen.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Arm (60) an einem Zahnrad (64) befestigt ist, und die Betätigungsvorrichtung eine mit dem Zahnrad kämmende hin- und hergehende Zahnstange (68) aufweist.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Betätigungsvorrichtung einen mit Druckluft betriebenen Arbeitszylinder (70) aufweist, mit dessen Kolbenstange die Zahnstange (68) verbunden ist.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Luftversorgung des Arbeitzylinders über ein elektromagnetisch betätigtes Ventil (72) geschieht, wobei der Elektromagnet durch von einem Zufallssignalgenerator gelieferte Impulse erregt wird.
5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Betätigungsvorrichtung (70, 72) einsinnig wirkt, und der Arm (60) durch Federkraft in eine Ruhestellung vorgespannt ist.
EP80304048A 1979-11-13 1980-11-12 Vorrichtung zur Herstellung eines gedrehten Noppengarns Expired EP0028939B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80304048T ATE31946T1 (de) 1979-11-13 1980-11-12 Vorrichtung zur herstellung eines gedrehten noppengarns.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/093,199 US4305245A (en) 1979-11-13 1979-11-13 Method of forming false twisted slub yarn
US93199 1979-11-13
US159691 1980-06-16
US06/159,691 US4330988A (en) 1980-06-16 1980-06-16 Method of forming a slub yarn

Publications (3)

Publication Number Publication Date
EP0028939A2 EP0028939A2 (de) 1981-05-20
EP0028939A3 EP0028939A3 (en) 1981-12-16
EP0028939B1 true EP0028939B1 (de) 1988-01-13

Family

ID=26787251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80304048A Expired EP0028939B1 (de) 1979-11-13 1980-11-12 Vorrichtung zur Herstellung eines gedrehten Noppengarns

Country Status (6)

Country Link
EP (1) EP0028939B1 (de)
KR (1) KR840000380B1 (de)
CA (1) CA1142400A (de)
DE (1) DE3072066D1 (de)
DK (1) DK154575C (de)
IE (1) IE53216B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1191880B (it) * 1986-04-30 1988-03-23 Ratti Spa Michele Macchina per ottenuere in un solo passaggio e in continuo,un filato fantasia,termofissato
EP0299131A1 (de) * 1987-07-14 1989-01-18 Ernaelsteen, Jean-Charles Verfahren zur Herstellung eines Flammengarnes und Vorrichtung für das Ausführen des Verfahrens
ITUB20152307A1 (it) * 2015-07-20 2017-01-20 Ssm Giudici S R L Metodo e dispositivo per la produzione di un filo fiammato e filo cosi' ottenuto
CN108796733B (zh) * 2018-06-28 2020-12-15 永安市日发纺织有限公司 无规律竹节纱的生产工艺
CN111424334A (zh) * 2019-01-10 2020-07-17 全程兴业股份有限公司 双组合弹性纤维复合材料及包含该复合材料的弹性复丝纤维与制法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3113413A (en) * 1959-06-08 1963-12-10 Eastman Kodak Co Apparatus and method for producing volumized slub yarn
US3438194A (en) * 1966-11-24 1969-04-15 Bemberg Spa Process for the manufacture of a composite yarn which is provided with spaced slubs
US4010601A (en) * 1975-06-24 1977-03-08 Toyo Boseki Kabushiki Kaisha Method for manufacturing a fancy textured yarn provided with slubs
US4016715A (en) * 1975-10-14 1977-04-12 Burlington Industries, Inc. High stretch yarn texturing, dyeing and package production
IT1077983B (it) * 1976-04-15 1985-05-08 Akzo Nv Filato ad effetto e relativo procedimento di produzione
US4058968A (en) * 1976-09-03 1977-11-22 Owens-Corning Fiberglas Corporation Bulked yarn and method of forming a bulked yarn
US4080777A (en) * 1976-09-13 1978-03-28 Akzona Incorporated Novelty yarns
US4170865A (en) * 1978-03-10 1979-10-16 J. P. Stevens & Co., Inc. Yarn slubbing device

Also Published As

Publication number Publication date
IE802334L (en) 1981-05-13
DE3072066D1 (en) 1988-02-18
EP0028939A2 (de) 1981-05-20
IE53216B1 (en) 1988-09-14
EP0028939A3 (en) 1981-12-16
KR830004465A (ko) 1983-07-13
DK154575B (da) 1988-11-28
DK154575C (da) 1989-04-17
KR840000380B1 (ko) 1984-03-27
CA1142400A (en) 1983-03-08
DK480280A (da) 1981-05-14

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