EP0171731A2 - Einrichtung zum Herstellen eines Fadens - Google Patents

Einrichtung zum Herstellen eines Fadens Download PDF

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Publication number
EP0171731A2
EP0171731A2 EP85109828A EP85109828A EP0171731A2 EP 0171731 A2 EP0171731 A2 EP 0171731A2 EP 85109828 A EP85109828 A EP 85109828A EP 85109828 A EP85109828 A EP 85109828A EP 0171731 A2 EP0171731 A2 EP 0171731A2
Authority
EP
European Patent Office
Prior art keywords
rollers
spinning zone
fiber
twisting
grooves
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
EP85109828A
Other languages
English (en)
French (fr)
Other versions
EP0171731B1 (de
EP0171731A3 (en
Inventor
Katsutoshi Kishi
Osamu Terao
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.)
Howa Kogyo KK
Howa Machinery Ltd
Original Assignee
Howa Kogyo KK
Howa 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15860838&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0171731(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Howa Kogyo KK, Howa Machinery Ltd filed Critical Howa Kogyo KK
Publication of EP0171731A2 publication Critical patent/EP0171731A2/de
Publication of EP0171731A3 publication Critical patent/EP0171731A3/en
Application granted granted Critical
Publication of EP0171731B1 publication Critical patent/EP0171731B1/de
Expired 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
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum

Definitions

  • a device according to an embodiment of the present invention shown in Figs. 1 through 3, comprises a pair of twisting rollers 1 and 2, a first duct 11, and second duct 15.
  • the twisting rollers 1 and 2 are disposed substantially in a horizontal direction and in parallel to each other in a confronting manner with a small gap G therebetween.
  • a spinning zone 12 having a valley shape is formed on the upper surface of the two rollers 1 and 2 along the gap G, in which a fiber bundle Y1 is prepared from a fiber Y 0 as stated later.
  • Shafts la and 2a of both rollers are rotatably supported by ball bearings 4 and 5 secured to a machine frame 3.
  • the first duct 11 is disposed above the spinning zone 12 for supplying an opened fiber Y 0 thereto.
  • the second duct 15 is disposed just beneath the gap G for withdrawing air transporting the fiber through the spinning zone 12.
  • One of the twisting rollers 1 and 2 for example, roller 1 shown at the upper side of Fig. 1 in this embodiment, has a plurality of peripheral grooves 9 arranged in parallel to each other and perpendicular to an axis of the roller 1 on substantially the entire outer surface thereof.
  • the grooves 9 are equidistantly arranged, as shown in Fig. 4, they may be provided at different intervals from each other and also the width and profile of the groove 9 may be varied.
  • the roller 1 is preferably made of a metal and the roller 2 is preferably wrapped with a synthetic rubber sheath, although the materials thereof are not necessarily restricted thereto.
  • the first duct 11 has a triangular profile and is connected by a narrow base portion to known means for opening the fiber, such as a combing roller 10, and confronts the spinning zone 12 with a wide mouth portion l4, as illustrated in Figs. 2 and 3, whereby an individually separated fiber can be fed to the valley of the spinning zone 12.
  • Lower ends of side walls lla of the mouth portion l4 are positioned closely to the upper surfaces of the rollers 1 and 2, and a lower end of a back wall llb is provided with a plate member 13 in a shape of triangle complementary to a profile of the spinning zone 12 for preventing extrication of the fiber from the spinning zone 12.
  • a second embodiment of the present invention is illustrated, wherein the grooves 9e formed of a plurality of spirals are provided only on the right side part of the peripheral surface of the twisting roller le.
  • the spiral groove 9e is preferably inclined in such a manner that the air flow directed opposite to the yarn withdrawal direction generates in the valley between the rollers due to rotation of the latter, because the parallelism of the fibers supplied in the spinning zone is improved.
  • the surface portions of the two rollers without the grooves 9e are substantially in contact with each other, whereby the air flow can be shut in this portion and formation of the fiber bundle is carried out only in the other portion where the grooves 9e are provided.
  • the spiral grooves may be replaced by the parallel ones as in the first embodiment shown in Figs. 1 through 6.
  • Figure 8 illustrates a third embodiment of the present invention, in which both twisting rollers If and 2f are provided with parallel grooves 9f l and 9f - , respectively, on the entire peripheral surfaces thereof.
  • Figure 9 illustrates a fourth embodiment of the present invention, in which spiral grooves 9g l and 9g 2 which intersect each other are provided on the entire peripheral surface of one twisting roller lg.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19850109828 1984-08-11 1985-08-05 Einrichtung zum Herstellen eines Fadens Expired EP0171731B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP16804784A JPS6147830A (ja) 1984-08-11 1984-08-11 紡糸装置
JP168047/84 1984-08-11

Publications (3)

Publication Number Publication Date
EP0171731A2 true EP0171731A2 (de) 1986-02-19
EP0171731A3 EP0171731A3 (en) 1987-05-13
EP0171731B1 EP0171731B1 (de) 1989-10-25

Family

ID=15860838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850109828 Expired EP0171731B1 (de) 1984-08-11 1985-08-05 Einrichtung zum Herstellen eines Fadens

Country Status (3)

Country Link
EP (1) EP0171731B1 (de)
JP (1) JPS6147830A (de)
DE (1) DE3573935D1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT338666B (de) * 1976-02-17 1977-09-12 Fehrer Ernst Gmbh Vorrichtung zum spinnen textiler fasern
DE2810184A1 (de) * 1978-03-09 1979-09-13 Barmag Barmer Maschf Open-end-spinnvorrichtung
DE3307082A1 (de) * 1983-03-01 1984-09-06 Fritz 7347 Bad Überkingen Stahlecker Oe-friktionsspinnvorrichtung
DE3308249A1 (de) * 1983-03-09 1984-09-13 Fritz 7347 Bad Überkingen Stahlecker Oe-friktionsspinnvorrichtung

Also Published As

Publication number Publication date
EP0171731B1 (de) 1989-10-25
JPS6147830A (ja) 1986-03-08
DE3573935D1 (en) 1989-11-30
EP0171731A3 (en) 1987-05-13

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