US3085390A - Apparatus for refining yarns - Google Patents

Apparatus for refining yarns Download PDF

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Publication number
US3085390A
US3085390A US496954A US49695455A US3085390A US 3085390 A US3085390 A US 3085390A US 496954 A US496954 A US 496954A US 49695455 A US49695455 A US 49695455A US 3085390 A US3085390 A US 3085390A
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Prior art keywords
twisters
yarn
false
rows
row
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Expired - Lifetime
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US496954A
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English (en)
Inventor
Camillo Dubini
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Giuseppe Dubini and C SA
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Giuseppe Dubini & Co Sa
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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
    • D02G1/0206—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 by false-twisting
    • D02G1/0266—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 by false-twisting false-twisting machines
    • 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
    • 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

  • one single passage can, thus, be obtained a refined yarn having the desired improved characteristics of elas ticity, heat insulation, appearance and touch.
  • the deformation is impressed onto the yarn in the novel apparatus by causing it to freely cross the hollow axis of a runner or twister at an elevated number of revolutions, located between said fixed points, downstream of the length subjected to a heat treatment.
  • Said yarn is made to pass before and afterwards said crossing through a hook eccentrically integral with said runner so that a high temporary twisting is imparted to said yarn.
  • the invention has fundamentally the object to provide an apparatus which is distinguished by its simplicity of structure and consequently by the possibility of being rnrade with reduced space requirement and at low cost.
  • a fundamental element of said apparatus is in fact the above mentioned hollow runner or twister which essentially consists of a tubular hollow body situated with its axis substantially in the path of the yarn crossing same, and provided in correspondence of one of its extremities with a flange having peripheral slits thereon acting as hooks in which slidably engages the yarn.
  • Said slits are, of course, so shaped as to be able to entrain the yarn both in right and in left rotation.
  • the apparatus in its whole comprises, in vertical succession from bottom upwards, a loading floor for receiving a plurality of reels or spools of yarn, at least one line of thread-guides towards which the yarns coming from the individual bobbins converge, at least a first driven cylinder with which cooperates a plurality of idle rollers located side by side for the feeding of the yarn, a chamber for the heat treatment, located above said idle rollers and provided on its lower face and upper face, respectively, with entry thread-guides and exit thread-guides, respectively, for the passage of the yarn coming from said first driven cylinder, at least one line of hollow runners or twisters provided with eccentric hooks, rotated at very high speed and located above said thread-guides in alignment therewith, at least a second driven cylinder with which cooperates a plurality of idle press rollers for withdrawing the yarn from the hollow runners or twisters and above said second driven cylinder, at least a third driven cylinder for frictionally controlling at constant peripheral speed a plurality of spools for collecting the treated yarn.
  • FIG. 1 represents diagrammatically the process carried out with the apparatus according to the invention, in which the yarn is imparted deformation by twist;
  • FIGURES la and 1b are a longitudinal section and a front view respectively, from the left side of FIG. 1a, of a member used in the diagram of FIG. 1;
  • FIG. 2 is a schematic view, in vertical cross-section, of an apparatus for the simultaneous treatmentof many threads according to the diagram of FIG. 1;
  • FIG. 3 is a plan view, on enlarged scale, of one of the two lines of hollow runners or twisters;
  • FIG. 4 is an elevation of one of said twisters, partially sectioned according to line IVIV of FIG. 3;
  • FIG. 5 is a perspective view on a further enlarged scale of a slightly different embodiment of a top piece or flange of said runners or twisters.
  • the yarn F to be treated is continuously unwound from a spool 1 and is wound up after refining on a spool 2, between which it passes through two fixed points 3 and 4. It is just on the path of the yarn between 3 and 4 that the yarn is subjected to deformation and is fixed.
  • Deformation is obtained according to the embodiment illustrated in FIG. 1, at a point intermediate between the fixed points 3 and 4, the yarn being made to pass inside of a hollow runner or twister 5 turning at high speed, after it has been inserted in one of peripheral hooks 6 of one of its end flanges 7.
  • the yarn which is entrained from one fixed point to the other through said twister in rapid rotation, twists firstly between 3 and 5 according to a determined number of revolutions and untwists then between 4 and 5 according to an equal number of revolutions, since twisting and untwisting are produced by the same rotating body.
  • the deformation originated by the twist is fixed in a permanent manner and remains a feature of the yarn even after untwisting. That is to say, the yarn is collected on the spool 2 without the least alteration of its original twist.
  • the heated chamber 8 may be equipped with an electric stove or other equivalent means capable of providing a surrounding of hot air at constant predetermined temperature corresponding to the kind and count of the yarn, to the intensity of the deformation undergone by said yarn, to the length of the heating chamber in the direction of the path of the yarn and to the speed at which the yarn passes through said chamber.
  • the twister 5 may, of course, be replaced by another equivalent member provided with suitable means for hooking-in the yarn and compelling it to turn with said member, permitting it to slide at the same time; it must be of small diameter to enable the balloon to be reduced and the number of revolutions to be increased, e.g. in the range of some millimetres and it must be of reduced length.
  • it is easy to impart to a member of this kind a speed of rotation up to and beyond 20,000 revolutions per minute with negligible consumption of power.
  • the fixed points 3 and 4 may be formed by one of the known methods in ordinary twisting machines, be they doublers or ring twisters or consist in simple transmission means.
  • FIG. 2 An apparatus for treating the yarn as shown in FIG. 1 and heretofore described is the one schematically shown in FIG. 2 wherein the same reference numerals have been used to indicate parts corresponding to the parts of FIG. 1.
  • Said apparatus comprises a loading floor 9 for the yarn, located in its lower part, and wherein the spools l of yarn are supported by pins (not shown) which have axes converging towards two lines 10 of thread-guides from which the yarn passes, through bars 11, 12 adjustable to vary the tension of the yarn, to two feed cylinders 13 with which cooperate a plurality of idle press rollers 14 for withdrawing the yarn F from the spools 1, complying at the same time to the function of fixed point 3 of FIG. 1.
  • the two cylinders 13' are driven at constant speed (variable of course in accordance with the yarn, the twist to be imparted thereto and the treatment to be made).
  • the yarn F rises in vertical direction while it is subjected to the desired twisting effect, entering into the fixing chamber 8 which it leaves, still vertically, to enter into the twister 5 and to be then hooked at the exit thereof in the peripheral hooks 6 for right and left torsion of very hard material, which drag it in rotation thus imparting thereto in the length between the cylinders 13 and the twisters 5 a determined twist in quantity as well as in direction.
  • the fixing chamber 8 is preferably constituted by a double-walled box, its outer wall 81 being of a plate of appropriated material, the inner wall 84 being of stainless steel, and by an interposed layer 15 of insulating material of convenient thickness. Both on the bottom andon the cover of the box, in perfect correspondence with the axes of the twisters, there are provided holes for the passage of the threads, wherein there may be fastened tubular thread-guides I6, 16' of glass, porcelain or other suitable material, in the shape of funnels oriented with their flares upwards. These funnels serve to facilitate the threading from above of a hooked needle passing through the whole height of the fixing chamber so as to permit easy hooking of the thread to be treated, either at the beginning of the treatment or in case of breakage of the thread.
  • suitable heating means 4 conveniently screened, to obtain a constant temperature of desired value for the fixing of the yarn.
  • each twister consists of a tubular body 5 carrying at one end the flange 7 provided with hooks 6, and freely rotatably mounted, by means of ball bearings 20, in :a support 21 in the shape of a swinging arm.
  • the flange 7 may be provided, as is shown in FIGS. 4 and 5, in a top piece 5 of the twisters 5 of a low friction coefficient material, e.g.
  • hooks 6 consist of simple radial notches.
  • the support 21 is mounted in a fixed frame 22 in a freely rotatable way around the stem of bolts 23, having its axis parallel to the axis of the tubular body 5, and is subjected to the action of a spring 24 which tends to rotate the said support 21 in the sense of securing the adherence of the tubular bodies 5 of the twisters to the belt 19.
  • Onto the support 21 is also fixed a thre-ad guide 25 for guiding the yarn at the exit from the twisters 5.
  • the yarn F leaving the twisters 5 keeps rising, always in the vertical direction, under the action of the two driven cylinders 25 whereon there rest sets of idle press rollers 27.
  • these cylinders may be driven at a speed equal, higher or lower than that of the cylinders 26, so as to adjust at will the winding modalities of the yarn F onto the spools 2.
  • the driven cylinders 20 may turn with a peripheral speed identical to that of the feed cylinders 3, accomplishing in this case the simple function of the fixed point 4 of FIG. 1. Things, however, may also be arranged in such a manner that the peripheral speed be slightly higher than that of the cylinders 13 in order to give the yarn a slight draft, in order to permit the yarn to take a slight shrink.
  • Things may be arranged in such a manner that the various movements be derived through suitable transmissions from one single motor supported by the framing of the apparatus in such a way that the latter forms an independent unit.
  • the process hereinbefore described does not require any particular winds of the yarn, which may be unwound indifferently from spindles, cones, spools and the like and may again be collected on cones, spools and the like.
  • the yarn to be refined may therefore be fed from the very support on which it is delivered by the spinning mill, and it may then be collected after one single pass through one single apparatus, in already completely refined condition on its definitive winding support. This, with the same production, permits to attain a considenable saving in the number and hence in the consumption of supports as compared With other apparatus, contributing thus to render the practising of the present invention more economical.
  • the apparatus described hereinbefore also affords the following further advantages
  • the yarns to be treated are subjected to less deterioration during treatment because they undergo only one pass from their original supports from which they are unwound to the definitive support on which they are wound up again;
  • a false twister comprising in combination: a hollow tubular body, and a flange at one end of said body, said flange being provided with at least two oppositely arranged recesses for engagement with a thread running through the inside of the hollow tubular body.
  • An apparatus for the treatment of threads of synthetic fibres comprising in combination: a first row of a plurality of spaced rotatable false twisters, at least one additional row of a plurality of spaced rotatable false twisters, said rows being parallel to each other and the rotatable twisters of said two rows being alternately ofiset relativeto each other, a belt drive including a belt passing in a substantially straight run between said rows of rotatable false twisters and being in operative engagement with one side of each of said false twisters whereby the false twisters of one row are rotated in one direction of rotation and the false twisters of the adjoining row are rotated in the opposite direction, and swingably attached support means for each of said false twisters for urging same in a direction opposite to the travel of and into engagement with said belt.
  • first row of false twisters and one of said additional rows of false twisters constitute a first pair of rows, further comprising a second pair of rows formed by a similar first row of false twisters and a similar additional row of false twisters, said belt drive passing in an endless path consecutively between the respective panallel rows of both pairs of rows, said pairs of rows and the associated belt runs being non-contiguous with each other.
  • an apparatus for the treatment of threads of synthetic fibers having means for simultaneously feeding a plurality of threads to a common heat-fixing chamber, and spaced rotatable false twisters at the exit of said chamber, the improvement comprising, in combination, a rotatable false twister for each thread, said false twisters forming two pairs of parallel rows, the false twisters of said rows of each pair being off-set relative to each other, a belt drive including a belt passing between the two rows of said false twisters of each pair of rows and being in operative engagement with one side of each of the false twisters of said rows, whereby the false twisters of one row are rotated in one direction of rotation and the false twisters of the adjoining row are rotated in the opposite direction, oscillating supports for each of said false twisters, and resilient means mounted on said supports for urging said false twisters into engagement with said belt.
  • An apparatus for the treatment of threads of synthetic fibers comprising in combination: a first row of a plurality of spaced rotatable false twisters, each of said false twisters including a hollow cylindrical body, a flange arranged at one end of said hollow cylindrical body, and at least two oppositely arranged engaging means on said flange for engagement with a thread passing through the interior of said hollow cylindrical body, a second row of a plurality of spaced rotatable false twisters similar to the twisters of said first row, said rows being parallel to each other and the rotatable twisters of said two rows being offset relative to each other, a belt drive including a belt passing between said two rows of rotatable false twisters and being in operative engagement with each of said false twisters whereby the false twisters of one row are rotated in one direction and the false twisters of the other row are rotated in the opposite direction, said belt being in operative engagement with the outer surface of said hollow cylindrical bodies, said engaging means being formed by recesses arranged in the flange of the

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US496954A 1954-03-27 1955-03-25 Apparatus for refining yarns Expired - Lifetime US3085390A (en)

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IT3085390X 1954-03-27

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US (1) US3085390A (it)
BE (1) BE536760A (it)
CH (1) CH331173A (it)
FR (1) FR1127005A (it)
GB (1) GB809002A (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166881A (en) * 1963-07-22 1965-01-26 Chavanoz Moulinage Retorderie Apparatus and process for the manufacture of highly crimped yarns by false twist
US3667208A (en) * 1969-09-25 1972-06-06 Forezienne De Moulinage Et Tex Process for obtaining a sponge-textured thread from natural silk thread
US20240060218A1 (en) * 2016-12-19 2024-02-22 Lintec Of America, Inc. Nanofiber yarn spinning system

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237261B (de) * 1955-09-16 1967-03-23 Scragg & Sons Falschdrallvorrichtung, insbesondere zum Kraeuseln von synthetischen Faeden
DE1282839B (de) * 1956-05-14 1968-11-14 Onderzoekings Inst Res Vorrichtung zur Herstellung von gekraeuselten, thermoplastischen Faeden
FR1281854A (fr) * 1957-06-21 1962-01-19 Socitex Perfectionnements apportés aux machines de crêpage de fils par fausse torsion et à leurs parties
US3010271A (en) * 1957-06-21 1961-11-28 Batsch Guy Machines for crimping yarns by false twist, and their parts
FR1281853A (fr) * 1957-06-21 1962-01-19 Socitex Perfectionnements apportés aux moyens de chauffage pour fils à crêper par fausse torsion
DE1164598B (de) * 1957-12-20 1964-03-05 Aime Joseph Racicot Maschine zum Kraeuseln von synthetischen Faeden oder Fadenbuendeln
US3020700A (en) * 1958-03-22 1962-02-13 American Enka Corp Production of curled yarn
DE1211351B (de) * 1958-06-16 1966-02-24 Universal Winding Co Lagereinrichtung fuer eine mittels eines Riemens mit hoher Drehzahl angetriebene Spindel
DE1165805B (de) * 1958-11-17 1964-03-19 Hamel Ag Vorrichtung zur Herstellung eines Kraeuselkreppzwirnes, insbesondere aus synthetischen Faeden oder Fadenbuendeln
JP7398323B2 (ja) * 2020-04-06 2023-12-14 Ｔｍｔマシナリー株式会社 仮撚加工機

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463618A (en) * 1943-10-18 1949-03-08 Heberlein Patent Corp Process for producing fibrous material and the product
US2463620A (en) * 1946-01-21 1949-03-08 Heberlein Patent Corp Apparatus and process for crimping
US2475922A (en) * 1945-02-07 1949-07-12 Stockly Johann Process and device for producing wool-like rayon filaments
US2477909A (en) * 1945-01-29 1949-08-02 Stockly Johann Process and apparatus for producing woollike filaments of cellulose hydrate rayon
US2564245A (en) * 1947-04-25 1951-08-14 Louis Antoine Billion Method for treating superpolyamide threads
FR1082461A (fr) * 1953-08-28 1954-12-29 Tissages De Soieries Reunis Procédé et appareil pour la production d'une matière textile comportant des ondulations permanentes
US2740251A (en) * 1952-12-03 1956-04-03 William E Bierlin Twister head top
US2991614A (en) * 1953-03-25 1961-07-11 Ubbelohde Leo False twisting apparatus for producing crimped filamentary materials

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463618A (en) * 1943-10-18 1949-03-08 Heberlein Patent Corp Process for producing fibrous material and the product
US2477909A (en) * 1945-01-29 1949-08-02 Stockly Johann Process and apparatus for producing woollike filaments of cellulose hydrate rayon
US2475922A (en) * 1945-02-07 1949-07-12 Stockly Johann Process and device for producing wool-like rayon filaments
US2463620A (en) * 1946-01-21 1949-03-08 Heberlein Patent Corp Apparatus and process for crimping
US2564245A (en) * 1947-04-25 1951-08-14 Louis Antoine Billion Method for treating superpolyamide threads
US2740251A (en) * 1952-12-03 1956-04-03 William E Bierlin Twister head top
US2991614A (en) * 1953-03-25 1961-07-11 Ubbelohde Leo False twisting apparatus for producing crimped filamentary materials
FR1082461A (fr) * 1953-08-28 1954-12-29 Tissages De Soieries Reunis Procédé et appareil pour la production d'une matière textile comportant des ondulations permanentes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166881A (en) * 1963-07-22 1965-01-26 Chavanoz Moulinage Retorderie Apparatus and process for the manufacture of highly crimped yarns by false twist
US3667208A (en) * 1969-09-25 1972-06-06 Forezienne De Moulinage Et Tex Process for obtaining a sponge-textured thread from natural silk thread
US20240060218A1 (en) * 2016-12-19 2024-02-22 Lintec Of America, Inc. Nanofiber yarn spinning system

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Publication number Publication date
GB809002A (en) 1959-02-18
CH331173A (it) 1958-07-15
BE536760A (fr) 1959-02-13
FR1127005A (fr) 1956-12-06

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