US3845613A - False-twist device - Google Patents

False-twist device Download PDF

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Publication number
US3845613A
US3845613A US00347673A US34767373A US3845613A US 3845613 A US3845613 A US 3845613A US 00347673 A US00347673 A US 00347673A US 34767373 A US34767373 A US 34767373A US 3845613 A US3845613 A US 3845613A
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US
United States
Prior art keywords
discs
shafts
disc
yarn
carriers
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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 - Lifetime
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US00347673A
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English (en)
Inventor
G Knebel
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.)
Heberlein and Co AG
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Heberlein and Co AG
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Filing date
Publication date
Application filed by Heberlein and Co AG filed Critical Heberlein and Co AG
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Publication of US3845613A publication Critical patent/US3845613A/en
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    • 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
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc

Definitions

  • ABSTRACT d 9 False-twist device for texti1e yams has circular discs arranged on parallel shafts, four such shafts being provided, opposite shafts having at the same level discs formed with configurations extending at any angle rel- [56] References Cited ative to the discs surfaces and with profiles of pairs of UNITED STATES PATENTS discs at the same level in mutual engagement.
  • I contribute a friction false-twist device for textile yarns with circular discs arranged on parallel rotatable shafts at certain distances and characterized in that four shafts arranged in the corners of a square are provided, and in that on the shafts situated opposite each other across the square, the discs are arranged on the same level; that furthermore, the disc rims are provided with grooves or projections extending at an ascendin g angle with respect to the disc surfaces and with profiles, and that the disc rim profiles of the two discs arranged on the same level are in mutual engagement.
  • FIG. 1 is a top view of a device according to my invention
  • HO. 2 is a lateral elevation of the device of FIG. 1;
  • FIG. 3 is a cross-sectional view taken along line A--A of FIG. 2;
  • FIG. 4 is a lateral elevation of two discs in the direction of arrow B of FIG. 1;
  • F 168. 5A-C illustrate various embodiments of a detail of the invention.
  • a carrier plate 1 fixed in a manner not shown on the machine frame, engages with the forked recesses of two rectangular carriers 3, 4.
  • Shafts 5, 6, 7, 8 and 9 extend through perforations in the carrier plate 1 and carriers 3 and 4 and are supported for rotation therein.
  • the shafts 6-9 are arranged so as to lie in the corners of an imaginary square. as viewed in FIG. 1.
  • Below the carriers 3 and 4, on the respective shafts 6, 7, 8 and 9, 1 provide pulleys ll, 12, 13 and 14; and below plate 1 on shaft 5, a pulley 15.
  • the pulleys ll, 14 and 15 carry endless belt 16; pulleys 11 and 12 carry endless belt 17; and pulleys l3 and 14 carry endless belt 18.
  • the shaft 5 is driven by a motor (not shown). Furthermore, the carrier 3 can be swivelled about shaft 6 and carrier 4 about shaft 9 so that the device can be opened in the way shown in FIG. 3 to permit insertion and removal of the yarn.
  • the carriers 3 and 4 are kept together by spring 31 when the device is closed.
  • I provide two discs 19,20; 21,22; 23,24; 25,26; respectively, and these are separated from each other by spacers 32 which may be exchanged to vary the axial distance between discs.
  • All the disc rims have grooves 27 extending obliquely with respect to the discs surface and having, for example, a width of 0.5 mm. and profiles which are in mutual engagement on the discs 21 and 25, 19 and 23, 33 and 26, 20 and 24 situated on the same level, as can be seen in FIG. 4.
  • Fine adjustment of the gap between the profiles of the disc rims according to the thickness of the yarn to be treated can be effected by means of adjusting screws 29 and 29' which are provided in the threaded bores of the parts 30 and 30' provided on the carrier plate 1 and which act on carriers 3 and 4.
  • the discs are arranged on the rotatable shafts at minimum distances from each other, assuring unimpeded rotation. These distances can, depending on the thickness of the yarn to be treated, amount to between 0.2 and 1 mm. They can be adjusted by insertion of corresponding spacers between the individual discs.
  • the grooves 27 may, for example, extend at an angle a of the order of 30 i 5 with respect to the disc surface. lt has proven advantageous successively slightly to increase the angle a of the grooves from the uppermost to the lowermost disc if the yarn moves downwards and the discs rotate counterclockwise as viewed in FIG. 1, i.e., the angle may, for example, be 30 on discs 21 and 25; 3l on discs 19 and 23; 32 on discs 22 and 26; and 33 on discs 20 and 24. In this case, the biggest angle provides the highest yarn advance rate, and the described escalation of the angles contributes to avoid yarn accumulation between the discs.
  • the disc rims may also carry corresponding projections.
  • the grooves or projections may be of the same width as their mutual distances. The angle a furthermore depends on the friction coefficient of the disc material and may even amount to more than 35.
  • the mutually engaging profiles of the disc rims may discs arranged on parallel rotatable shafts, characteralso be of other shape than as shown in FIGS. 2 and 4, ized in that four such shafts (6,7,8,9) are provided the such, for example, as the shapes 40,40; 41,41; and axes ofwhich are at the corners ofan imaginary square, 42,42 shown in FIGS. SA-C.
  • the discs may consist of a material having high wear 5 opposite each other, the discs (19,20,23,24; resistance and, at the same time, a friction coefficient 21,22,25,26) ar arranged on the same level, the disc with respect to synthetic yarn material such as olyamjrims being provided with configurations (27) extending ides or polyester as high as possible and may, for examat an ascending angle a with respect to the disc surfaces ple, consist of metal oxide ceramic material or alumia d with r fil (40,40; 41,41; 42,42) and that the hum discs y be Provided at least on the rhhS With a jdlSC rim profiles of discs arranged on the same level are oxide coating. It is furthermore possible to use discs of l li m hard-chromed aluminum.
  • the primary advantage of the device according to the present invention consists in that the ratio between yarn tensions, before entering into and after leaving the twist imparter formed by the discs, is relatively small; and in that at the same time an important advance movement in its direction of movement is imparted to the yarn.
  • the discs are arranged on the rotatable shafts in immediate proximity to one another consistent with unimeededt n- 3.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US00347673A 1972-04-11 1973-04-04 False-twist device Expired - Lifetime US3845613A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH539572A CH543613A (de) 1972-04-11 1972-04-11 Friktions-Falschdrallvorrichtung

Publications (1)

Publication Number Publication Date
US3845613A true US3845613A (en) 1974-11-05

Family

ID=4292848

Family Applications (1)

Application Number Title Priority Date Filing Date
US00347673A Expired - Lifetime US3845613A (en) 1972-04-11 1973-04-04 False-twist device

Country Status (7)

Country Link
US (1) US3845613A (fr)
JP (1) JPS4914758A (fr)
CH (1) CH543613A (fr)
DD (1) DD103934A5 (fr)
DE (1) DE2315633A1 (fr)
FR (1) FR2179814B3 (fr)
IT (1) IT980145B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002017A (en) * 1974-06-28 1977-01-11 Weinz Ernst A Friction member for a mistwisting apparatus
US4134252A (en) * 1976-04-10 1979-01-16 Toray Industries Inc. Method and apparatus for preparing false twisted yarns
US4145871A (en) * 1977-01-21 1979-03-27 Toshiba Kikai Kabushiki Kaisha False twisting apparatus
US4489546A (en) * 1982-05-19 1984-12-25 Fag Kugelfischer Georg Schafer & Co. Friction false-twisting unit
WO2010052213A1 (fr) * 2008-11-04 2010-05-14 Ceramtec Ag Disque de friction

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49102955A (fr) * 1973-02-12 1974-09-28
JPS5822156B2 (ja) * 1980-02-01 1983-05-06 新日本理化株式会社 １，３：２，４−ジベンジリデンソルビト−ル類又は（及び）１，３：２，４：５，６−トリベンジリデンソルビト−ル類の連続製造法
JPS5822157B2 (ja) * 1980-05-16 1983-05-06 新日本理化株式会社 １，３：２，４−ジベンジリデンソルビト−ル類及び１，３：２，４−ジベンジリデンキシルト−ル類の製造法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620517A (en) * 1950-06-02 1952-12-09 Whitin Machine Works False twister
US2923121A (en) * 1957-06-21 1960-02-02 Hobourn Aero Components Ltd Apparatus for imparting twists to yarns
US3021663A (en) * 1956-11-03 1962-02-20 Scragg & Sons Apparatus for false twisting yarn
US3112600A (en) * 1961-11-02 1963-12-03 Leesona Corp Method and apparatus for processing yarns
US3287890A (en) * 1964-10-07 1966-11-29 Monsanto Co Apparatus for twisting yarn
DE1242321B (de) * 1962-07-21 1967-06-15 Glanzstoff Ag Vorrichtung zum Erzeugen eines falschen Dralles
US3705847A (en) * 1970-09-21 1972-12-12 Weyerhaeuser Co Method for forming a uniform continuous web of paper
US3705488A (en) * 1971-05-20 1972-12-12 Turbo Machine Co Apparatus and method for producing a high degree of twist in yarn

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2620517A (en) * 1950-06-02 1952-12-09 Whitin Machine Works False twister
US3021663A (en) * 1956-11-03 1962-02-20 Scragg & Sons Apparatus for false twisting yarn
US2923121A (en) * 1957-06-21 1960-02-02 Hobourn Aero Components Ltd Apparatus for imparting twists to yarns
US3112600A (en) * 1961-11-02 1963-12-03 Leesona Corp Method and apparatus for processing yarns
DE1242321B (de) * 1962-07-21 1967-06-15 Glanzstoff Ag Vorrichtung zum Erzeugen eines falschen Dralles
US3287890A (en) * 1964-10-07 1966-11-29 Monsanto Co Apparatus for twisting yarn
US3705847A (en) * 1970-09-21 1972-12-12 Weyerhaeuser Co Method for forming a uniform continuous web of paper
US3705488A (en) * 1971-05-20 1972-12-12 Turbo Machine Co Apparatus and method for producing a high degree of twist in yarn

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002017A (en) * 1974-06-28 1977-01-11 Weinz Ernst A Friction member for a mistwisting apparatus
US4134252A (en) * 1976-04-10 1979-01-16 Toray Industries Inc. Method and apparatus for preparing false twisted yarns
US4145871A (en) * 1977-01-21 1979-03-27 Toshiba Kikai Kabushiki Kaisha False twisting apparatus
US4489546A (en) * 1982-05-19 1984-12-25 Fag Kugelfischer Georg Schafer & Co. Friction false-twisting unit
WO2010052213A1 (fr) * 2008-11-04 2010-05-14 Ceramtec Ag Disque de friction
CN102272364A (zh) * 2008-11-04 2011-12-07 陶瓷技术有限责任公司 摩擦盘
CN102272364B (zh) * 2008-11-04 2015-02-18 陶瓷技术有限责任公司 摩擦盘

Also Published As

Publication number Publication date
CH543613A (de) 1973-10-31
FR2179814B3 (fr) 1976-03-26
FR2179814A1 (fr) 1973-11-23
IT980145B (it) 1974-09-30
DE2315633A1 (de) 1973-10-18
JPS4914758A (fr) 1974-02-08
DD103934A5 (fr) 1974-02-12

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