EP0372255A1 - Métier à filer à jet d'air - Google Patents

Métier à filer à jet d'air Download PDF

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Publication number
EP0372255A1
EP0372255A1 EP89120931A EP89120931A EP0372255A1 EP 0372255 A1 EP0372255 A1 EP 0372255A1 EP 89120931 A EP89120931 A EP 89120931A EP 89120931 A EP89120931 A EP 89120931A EP 0372255 A1 EP0372255 A1 EP 0372255A1
Authority
EP
European Patent Office
Prior art keywords
false twist
nozzle
spinning device
unit
working direction
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
EP89120931A
Other languages
German (de)
English (en)
Other versions
EP0372255B1 (fr
Inventor
Herbert Dr. Stalder
Felix Blattmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT89120931T priority Critical patent/ATE89617T1/de
Publication of EP0372255A1 publication Critical patent/EP0372255A1/fr
Application granted granted Critical
Publication of EP0372255B1 publication Critical patent/EP0372255B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means

Definitions

  • the invention relates to a nozzle spinning device with a drafting system, the front cylinders of which are followed by a false twist unit in the working direction, and with a pair of draw-off rollers arranged in the working direction after the false twist unit.
  • Such nozzle spinning devices are known.
  • the front cylinders deliver a stretched staple fiber ribbon to the false twist unit, which twists the fibers together, so that an incorrectly twisted yarn core is formed, which extends into the area of the front cylinders.
  • Edge fibers are wound on the rotating yarn core with a pitch that is significantly greater than the pitch of the fibers in the yarn core.
  • the large distance not only leads to a large space requirement for the nozzle spinning device, but also to other shortcomings, as explained below.
  • the object of the invention is to avoid existing disadvantages of known nozzle spinning devices, in particular the large space requirement.
  • the object is achieved according to the invention in a nozzle spinning device of the type specified at the outset in that the distance from the clamping line of the front cylinders to the clamping line of the draw-off roller pair 15 is up to 30 cm.
  • the distance from the exit of the false twist unit to the clamping line of the pair of output rollers is preferably only about 10 cm.
  • Dig. 1 shows schematically three lower cylinders 1, 2 and 3 of a drafting system.
  • the associated upper cylinders are not visible in Fig. 1.
  • the front cylinder 3 of the drafting system is followed by a false twist unit 4 in the working direction (from top to bottom in FIG. 1).
  • this contains an intake duct 5 tapering in the working direction, one at the narrowest point of the on Suction channel adjoining throttle point 6 and a swirl channel 7 adjoining this, in which at least one air supply bore 8 opens, the axis of which crosses the axis of the swirl channel at a distance at an acute angle.
  • the swirl channel 7 forms, together with the throttle point 6, a false twist nozzle.
  • a pair of take-off rollers Arranged in the working direction after the false twist unit 4 is a pair of take-off rollers, of which only the lower roller 9 is visible in FIG. 1.
  • the mode of operation of such a nozzle spinning device is known.
  • the front cylinders 3 deliver a staple fiber strip S into the intake duct 5.
  • the compressed air introduced into the swirl duct 7 through the inclined air supply bore 8 produces a suction effect which sucks the fibers through the throttle point 6.
  • the fibers are twisted together by the air currents in the swirl duct 7, and a wrongly twisted yarn core 10 is formed, which extends into the area of the front cylinders 3.
  • the rotating yarn core 10 detects the majority of the fibers which are fed in the central region of the fiber sliver S via a spinning triangle.
  • edge fibers F are fed into the fiber sliver S, the front ends of which are only gripped by the rotating yarn core 10 in the intake duct 5 and which then wind on the yarn core with a slope that is substantially greater than the slope of the fibers in the core 10.
  • the yarn formed is then drawn off from the false twist unit 4 by the pair of draw rollers 9, the wrong twist of the yarn core 10 largely dissolving.
  • the edge fibers F the slope of which reverses, then form wrapping fibers on the yarn core.
  • the yarn moves approximately along a rotating helix, the pitch of which gradually increases towards the draw roller pair, while the diameter of the helix gradually decreases.
  • the distance A is from Clamping line K3 of the front cylinder 3 to the clamping line K9 of the take-off rollers 9 is only 15 to 30 cm, preferably 15 to 25 cm, for example approximately 20 cm.
  • the distance B from the outlet 4a of the false twist unit 4 to the clamping line K9 of the take-off rollers 9 is at most 15 cm and is preferably about 10 cm.
  • the spinning process proceeds in the desired manner as described.
  • the yarn core 10 and the helical shape formed by the yarn between the throttle point 6 and the take-off rollers 9 rotate faster than at larger distances.
  • the faster rotation leads to better strength of the yarn produced and / or enables a higher working speed (yarn speed or peripheral speeds of the front cylinders 3 and the take-off rollers 9).
  • the small distances A and B according to the invention naturally reduce the space required for the nozzle spinning device.
  • the reduced space requirement can advantageously be exploited in a spinning machine in which a space for receiving a spinning can, the drafting device 1, 2, 3, the false twist unit 4, the take-off roller pair 9 and a winding unit are arranged one above the other on a front side or operating side of the machine.
  • a space for receiving a spinning can the drafting device 1, 2, 3, the false twist unit 4, the take-off roller pair 9 and a winding unit are arranged one above the other on a front side or operating side of the machine.
  • FIG. 2 The drafting device 1, 2, 3, the false twist unit 4 and the take-off roller pair 9 are arranged according to FIG. 2 such that the working direction runs obliquely upwards. The working direction could also run vertically upwards.
  • Below the drafting device 1, 2, 3 there is a space 12 for receiving a spinning can 13 in a machine housing 11 indicated by broken lines, from which a sliver 14 is fed to the drafting device 1, 2, 3.
  • a winding unit 15 is arranged for the spun yarn.
  • false twist unit 4 has only been described as an example.
  • other false twist units could also be used in the nozzle spinning device, including those which, in addition to the false twist nozzle 6, 7, also contain an additional nozzle upstream of this in the working direction, which lay the edge fibers F around the rotating yarn core 10, with one Slope that is opposite to that of the fibers in the core 10.
EP89120931A 1988-11-23 1989-11-11 Métier à filer à jet d'air Expired - Lifetime EP0372255B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120931T ATE89617T1 (de) 1988-11-23 1989-11-11 Duesenspinnvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4357/88 1988-11-23
CH4357/88A CH676860A5 (fr) 1988-11-23 1988-11-23

Publications (2)

Publication Number Publication Date
EP0372255A1 true EP0372255A1 (fr) 1990-06-13
EP0372255B1 EP0372255B1 (fr) 1993-05-19

Family

ID=4274587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120931A Expired - Lifetime EP0372255B1 (fr) 1988-11-23 1989-11-11 Métier à filer à jet d'air

Country Status (5)

Country Link
EP (1) EP0372255B1 (fr)
JP (1) JP2915940B2 (fr)
AT (1) ATE89617T1 (fr)
CH (1) CH676860A5 (fr)
DE (1) DE58904428D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328771A1 (de) * 1992-08-28 1994-03-03 Murata Machinery Ltd Spinnvorrichtung und -verfahren
US5689945A (en) * 1991-11-21 1997-11-25 Maschinenfabrik Rieter Ag Drawing unit for a fine-spinning machine, in particular a jet-spinning machine
EP0854214A2 (fr) * 1997-01-16 1998-07-22 Murata Kikai Kabushiki Kaisha Appareil de filage
US5950413A (en) * 1997-04-18 1999-09-14 Wellman, Inc. Spinning apparatus, method of producing yarns, and resulting yarns
US5970700A (en) * 1997-04-18 1999-10-26 Wellman, Inc. Drafting apparatus and method for producing yarns

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384874A1 (fr) * 1977-03-24 1978-10-20 Murata Machinery Ltd Dispositif de filature directe
EP0104415A1 (fr) * 1982-08-27 1984-04-04 Maschinenfabrik Rieter Ag Métier à filer à tuyères
US4575999A (en) * 1982-07-21 1986-03-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Pneumatic nozzle utilized in the process of producing a fasciated yarn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60209026A (ja) * 1984-03-27 1985-10-21 Murata Mach Ltd 紡績機械
JPS6242052A (ja) * 1985-08-19 1987-02-24 Kurita Water Ind Ltd クロマトグラフイ−装置
JPS6344845A (ja) * 1986-08-12 1988-02-25 San Ei Chem Ind Ltd 茶類煎液の製法
JPS6385123A (ja) * 1986-09-22 1988-04-15 Murata Mach Ltd 紡績糸の製造方法及び製造装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2384874A1 (fr) * 1977-03-24 1978-10-20 Murata Machinery Ltd Dispositif de filature directe
US4575999A (en) * 1982-07-21 1986-03-18 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Pneumatic nozzle utilized in the process of producing a fasciated yarn
EP0104415A1 (fr) * 1982-08-27 1984-04-04 Maschinenfabrik Rieter Ag Métier à filer à tuyères

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MELLIAND TEXTILBERICHTE. vol. 65, no. 6, 01 Juni 1984, HEIDELBERG DE Seite 376 K.Y.Wang, G.Jordan: "Luftgesponnene Garne - ihre charakteristischen Eigenschaften und deren Auswirkungen auf den Endartikel" *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5689945A (en) * 1991-11-21 1997-11-25 Maschinenfabrik Rieter Ag Drawing unit for a fine-spinning machine, in particular a jet-spinning machine
DE4328771A1 (de) * 1992-08-28 1994-03-03 Murata Machinery Ltd Spinnvorrichtung und -verfahren
US5481863A (en) * 1992-08-28 1996-01-09 Murata Kikai Kabushiki Kaisha Spinning device having spaced apart front rollers and delivery rollers
EP0854214A2 (fr) * 1997-01-16 1998-07-22 Murata Kikai Kabushiki Kaisha Appareil de filage
EP0854214A3 (fr) * 1997-01-16 1999-06-09 Murata Kikai Kabushiki Kaisha Appareil de filage
US5950413A (en) * 1997-04-18 1999-09-14 Wellman, Inc. Spinning apparatus, method of producing yarns, and resulting yarns
US5960621A (en) * 1997-04-18 1999-10-05 Wellman, Inc. Spinning apparatus, method of producing yarns, and resulting yarns
US5970700A (en) * 1997-04-18 1999-10-26 Wellman, Inc. Drafting apparatus and method for producing yarns
US6035621A (en) * 1997-04-18 2000-03-14 Wellman, Inc. Spinning apparatus, method of producing yarns, and resulting yarns

Also Published As

Publication number Publication date
CH676860A5 (fr) 1991-03-15
JPH02182923A (ja) 1990-07-17
JP2915940B2 (ja) 1999-07-05
DE58904428D1 (en) 1993-06-24
EP0372255B1 (fr) 1993-05-19
ATE89617T1 (de) 1993-06-15

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