US3518824A - Apparatus for crimping textile yarns by false-twisting - Google Patents

Apparatus for crimping textile yarns by false-twisting Download PDF

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Publication number
US3518824A
US3518824A US817467A US3518824DA US3518824A US 3518824 A US3518824 A US 3518824A US 817467 A US817467 A US 817467A US 3518824D A US3518824D A US 3518824DA US 3518824 A US3518824 A US 3518824A
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US
United States
Prior art keywords
rollers
twist
false
discs
textile yarns
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 - Lifetime
Application number
US817467A
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English (en)
Inventor
Josef Raschle
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 Patent Corp
Original Assignee
Heberlein Patent 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
Application filed by Heberlein Patent Corp filed Critical Heberlein Patent Corp
Application granted granted Critical
Publication of US3518824A publication Critical patent/US3518824A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D02G1/02—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
    • D02G1/06—Spindles

Definitions

  • This invention relates to apparatus for crimping textile yarns, and more particularly to such apparatus for crimping by the false-twist method.
  • Apparatus for the crimping of textile yarns by falsetwisting wherein a twist tube is situated in the throat or crotch formed by two axially parallel rollers, the tube being in tangential contact with the rollers.
  • One of the rollers is driven and the other runs idly as a guide roller, and the twist tube is urged against the rollers by means of magnets so as to be rotated at high speed.
  • the yarn to be false-twisted is advanced longitudinally through the twist tube and is looped once around a cross-pin therein.
  • each of the two rollers consists of two parallel discs which are maintained at an equal axial distance from each other by means of spacers, and magnetic attraction is effected by means of a permanent bar magnet arranged in the middle between the two discs and the two spacers.
  • the magnetic attraction is effected by means of a horseshoe magnet the horseshoe plane of which runs in vertical direction and the ends of the legs of which bear horizontal pole shoes which extend into the space between the discs and the spacers.
  • the present invention is directed to creation of a falsetwisting device of the described kind which permits an increase of the speed of revolution of the twist tube by effecting a reduction of its dimensions.
  • this problem is resolved by using rollers in the form of flat discs as well as magnet means, preferably in the form of two permanent horseshoe magnets the U-planes of which are parallel to each other and arranged such that two magnetic legs running in parallel with the disc surfaces are situated opposite the upper and lower disc surfaces. The ends of the legs are situated adjacent the respective ends of the twist tube.
  • One such magnet can be situated opposite the upper and the other opposite the lower disc surfaces, or one leg of each of the "ice two horseshoe magnets can be situated opposite the upper disc surfaces and the other leg opposite the lower disc surfaces.
  • the apparatus of the invention presents the advantage that the rollers may be given the shape of flat discs of a thickness of between approximately 5 and 10 millimeters, whereby twist tubes with correspondingly small dimensions may be used. Furthermore, the twist tubes are not attracted magnetically by their central portion as in previous known false-twist devices, but by their two extremities, whereby the twist tubes are safely maintained in their position even at very high speeds of revolution.
  • FIG. 1 is a perspective view illustrating one form of the invention.
  • FIG. 2 is a perspective view illustrating another form of the invention.
  • FIG. 1 there is shown a roller 2 mounted for rotation on the shaft 15, and a moving belt 16 which runs in contact with the shaft to rotate same about the axis 1.
  • An idling guide roller 4 is rotatable on the axis 3 and is positioned adjacent the roller 2 so that its sides or circular surfaces are in substantially the same planes as the corresponding surfaces of the roller 2.
  • the rollers 2 and 4 may, for example, consist of a plastic material such as Vulcollan.
  • a hollow twist tube 5 is positioned, and this twist tube may consist of a suitable hard metal, and may be formed with enlarged terminal parts 6 and 7 consisting of a magnetic material.
  • the parts 6 and 7 are under the influence of the permanent horseshoe magnets 9 and 10 the U-planes of which are horizontal.
  • the lines 11 and 12 indicate the magnetic flux paths of the magnets 9 and 10, respectively.
  • a hollow cylindrical head 8 of non-magnetic material is fixed on the upper terminal part 6 of the twist tube 5; and a cross-pin (not shown) extends diametrically across the head 8 around which pin the longitudinally advancing textile thread (not shown) is wound once.
  • the legs of magnet 9 are situated adjacent the upper surfaces 2, 4 of the rollers 2 and 4, and the legs of magnet 10 are situated adjacent the lower, non-visible surfaces 2", 4 of these rollers.
  • the two magnets 9 and 10 must be of equal strength so that the terminal parts 6 and 7 of the twist tube 5 are equally attracted towards the rollers 2 and 4.
  • the represented apparatus presents the same rollers 2 and 4 with the twist tube 5 arranged in the throat between the same.
  • the U-planes of the two permanent horseshoe magnets 13, 14 are vertical, their legs 13 and 14 being situated opposite the upper roller surfaces 2' and 4' and the legs 13" and 14" opposite the non-visible lower roller surfaces 2" and 4".
  • no separate magnetic fluxes exist in the two magnets but only one magnetic flux passes through both magnets, as indicated by line 15.
  • This solution presents the further advantage that the magnets need not necessarily be of exactly equal strength.
  • Apparatus for crimping textile yarns by false-twisting by means of axially parallel rollers and a twist tube held in tangential contact therewith by magnet means characterized in that the rollers are in the form of fiat discs and that the magnet means comprise parallel elements arranged adjacent the opposite faces of the respective discs and with their ends adjacent corresponding ends of the twist tube.
  • magnet means are two permanent horseshoe magnets the planes of which are parallel with each other and so arranged that two legs of the magnet means are adjacent to the respective disc faces.
  • Apparatus according to claim 2 wherein one horse- 20 shoe magnet is adjacent one pair of corresponding disc faces and the other horseshoe magnet is adjacent the other pair of corresponding disc faces.
  • DONALD E. WATKINS Primary Examiner US. 'Cl. X.R.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Magnetic Treatment Devices (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US817467A 1968-06-18 1969-04-18 Apparatus for crimping textile yarns by false-twisting Expired - Lifetime US3518824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH905668A CH465757A (de) 1968-06-18 1968-06-18 Vorrichtung zum Kräuseln von Textilgarnen durch Falschdrall

Publications (1)

Publication Number Publication Date
US3518824A true US3518824A (en) 1970-07-07

Family

ID=4347836

Family Applications (1)

Application Number Title Priority Date Filing Date
US817467A Expired - Lifetime US3518824A (en) 1968-06-18 1969-04-18 Apparatus for crimping textile yarns by false-twisting

Country Status (5)

Country Link
US (1) US3518824A (un)
CH (1) CH465757A (un)
DE (1) DE1930978A1 (un)
FR (1) FR2011133A1 (un)
GB (1) GB1264157A (un)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718050A (en) * 1971-01-19 1973-02-27 Regal Mfg Co Apparatus for rotating spindle at high speed
US4008563A (en) * 1974-06-20 1977-02-22 Kugelfischer Georg Schafer & Co. False twisting device
CN102534900A (zh) * 2012-01-18 2012-07-04 无锡宏大纺织机械专件有限公司 采用防转型磁钢结合件的磁性转子式假捻器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB908113A (en) * 1958-11-25 1962-10-17 Klinger Mfg Co Ltd Improvements in or relating to an arrangement for transmitting a rotary drive to andsupporting a spindle
FR1362081A (fr) * 1963-04-19 1964-05-29 Socitex Perfectionnements apportés aux machines à broches tournantes, notamment aux machines de crêpage de fils textiles par fausse torsion
US3142953A (en) * 1961-05-17 1964-08-04 Kugelfischer G Schaefer & Co Drive system for false twisters
US3267657A (en) * 1958-11-11 1966-08-23 Heberlein Patent Corp False twisting device
US3355870A (en) * 1963-12-02 1967-12-05 Klinger Mfg Co Ltd Driving transmissions for high speed rotary spindles
US3355871A (en) * 1964-01-17 1967-12-05 Klinger Mfg Co Ltd Transmission means for driving and rotating false twist spindles
US3403566A (en) * 1964-07-08 1968-10-01 Klinger Mfg Co Ltd Means for driving spindles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267657A (en) * 1958-11-11 1966-08-23 Heberlein Patent Corp False twisting device
GB908113A (en) * 1958-11-25 1962-10-17 Klinger Mfg Co Ltd Improvements in or relating to an arrangement for transmitting a rotary drive to andsupporting a spindle
US3142953A (en) * 1961-05-17 1964-08-04 Kugelfischer G Schaefer & Co Drive system for false twisters
FR1362081A (fr) * 1963-04-19 1964-05-29 Socitex Perfectionnements apportés aux machines à broches tournantes, notamment aux machines de crêpage de fils textiles par fausse torsion
US3355870A (en) * 1963-12-02 1967-12-05 Klinger Mfg Co Ltd Driving transmissions for high speed rotary spindles
US3355871A (en) * 1964-01-17 1967-12-05 Klinger Mfg Co Ltd Transmission means for driving and rotating false twist spindles
US3403566A (en) * 1964-07-08 1968-10-01 Klinger Mfg Co Ltd Means for driving spindles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718050A (en) * 1971-01-19 1973-02-27 Regal Mfg Co Apparatus for rotating spindle at high speed
US4008563A (en) * 1974-06-20 1977-02-22 Kugelfischer Georg Schafer & Co. False twisting device
CN102534900A (zh) * 2012-01-18 2012-07-04 无锡宏大纺织机械专件有限公司 采用防转型磁钢结合件的磁性转子式假捻器
CN102534900B (zh) * 2012-01-18 2014-09-10 无锡宏大纺织机械专件有限公司 采用防转型磁钢结合件的磁性转子式假捻器

Also Published As

Publication number Publication date
CH465757A (de) 1968-11-30
DE1930978A1 (de) 1970-01-02
FR2011133A1 (un) 1970-02-27
GB1264157A (un) 1972-02-16

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