US3172249A - Yarn guides for over-end winding - Google Patents

Yarn guides for over-end winding Download PDF

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Publication number
US3172249A
US3172249A US206806A US20680662A US3172249A US 3172249 A US3172249 A US 3172249A US 206806 A US206806 A US 206806A US 20680662 A US20680662 A US 20680662A US 3172249 A US3172249 A US 3172249A
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US
United States
Prior art keywords
yarn
ring
groove
ring member
container
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
US206806A
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English (en)
Inventor
Thomas James Frederick
Wood Derek John
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.)
British Nylon Spinners Ltd
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British Nylon Spinners Ltd
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Filing date
Publication date
Application filed by British Nylon Spinners Ltd filed Critical British Nylon Spinners Ltd
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements
    • D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
    • D01H7/602—Rings
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements

Definitions

  • the present invention relates to yarn guides for overend winding and more particularly to yarn guides for said purpose which have the form of a llexible circularring member rolling in the groove of a member with an internally grooved circular aperture.
  • the ring and traveller arrangement is commonly used for rayon and synthetic libres such as nylon, but the travellers havefrequently to be replaced on account of wear, especially when the speed is raised; in fact at very h1gh 'speeds breakage of the traveller ensues.
  • This invention consists of a yarn guide for the overend winding of yarn on to a container on a rotating spindle, said yarn guide comprising a member with an internally grooved circular aperture positioned so as to surround said container, and an inner resiliently flexible ring member, circular when undistorted but capable of flexing in the plane of its circle and adapted to be retained by the groove of said grooved aperture, which embraces over half the circumference of the flexible ring member and constrains the ilexible ring member to roll in a circle (referred to hereinbelow as its circle of rotation) in a exed condition under the pull of the yarn, part of the circumference of the ilexible ring member being in contact with the bottom of the groove and the remainder separated therefrom by a gap through which the yarn passes in contact with the periphery of the flexed inner ring member.
  • the member with an internally grooved circular aperture may be for instance a ring or an apertured plate, which latter may be square or have other shapes.
  • the llexible inner ring member may consist of a exible ring made with variously shaped-cross sections but the desirable exibility in the plane of its circle is conveniently ensured by choosing a cross-sectional shape whereof the height is large compared with the width or thickness.
  • a cross-sectional shape whereof the height is large compared with the width or thickness.
  • the plane of the circle of the ring is imagined to be horizontal, which is its normal position since the spindles of winding machines are normally Vertical. It is also advisable for the edge over which the yarn passes to be rounded so as to present less resistance.
  • a suitable ice cross-sectional shape is a narrow rectangle, one end of which is rounded or semicircular.
  • both ends thereof may be made rounded or semicircular.
  • the anges or side walls of the groove of the internally grooved member which embrace over half the circumference of the liexible ring, are parallel for at least part of their depth.
  • the flexible ring has a cross-section of slightly less height than the distance separating the parallel side walls of the groove so as to have a sliding lit therebetween.
  • the bottom of the groove of the internally grooved member may be variously shaped. It is preferred that the cross-section of the groove be rectangular. In this case the side walls of the groove are parallel for all of their depth. Their depths may be equal when clearly the radii of the rims of the groove will likewise be equal.
  • the aforesaid gap between the flexed inner ring and the bottom of the groove is large enough to leave a gap between the rims of the ilanges of the groove (if they are of equal depth), or at least the rim of one of the lianges, and the flexed ring.
  • This allows the yarn to pass without adopting a sinuous course and thus lessens its tension.
  • the external diameter of the flexible inner ring in its undistorted condition may be smaller than, the same size as or even greater ⁇ than the diameter of the circle formed by the bottom of the groove.
  • the curve it assumes may or may not contain inflections, but the latter are inevitably present when the external diameter of the ilexible ring is greater than that ofthe circle formed by the bottom of the groove.
  • the internally grooved member and the flexible inner ring may be fabricated of various materials, for example, mild steel, nickel-chromium-molybdenum steel, chromium plated steel, nylon, polytetrafluoroethylene, aluminium, titanium, and aluminium containing manganese, magnesium and copper (known as Duralumin).
  • the present invention has the advantage compared with the traditional ring and traveller, not only that very high speeds of winding are possible but that the wear is very slight because the yarn makes contact with all the periphery of the iiexible ring instead of passing at one spot through the traveller and that no lubricant, which is always liable to soil the yarn, is employed.
  • FIGURE 1 shows in elevation yarn being wound on to a container with the internally grooved member which is a ring made of three components and the exible inner ring, whereof the cross-sectional shape is a narrow rectangle with one semicircular end.
  • FIGURE 2 gives an enlarged view of the yarn passing round the ilexible inner ring together with the neighbouring groove, shown in FIGURE l.
  • FIGURE 3 shows the subject of FIGURE 1 in plan (the liexed inner ring exhibiting no inexions).
  • FIGURE 4 shows the subject of FIGURE l in plan (the flexed inner ring exhibiting no inliexions).
  • FIGURE 5 illustrates in plan yarn being wound on to a container with the internally grooved member, which is a square plate made in one piece and the flexible inner ring, whereof the crosssectional shape is a narrow rectangle with both ends semicircular.
  • the internally grooved member which is a square plate made in one piece and the flexible inner ring, whereof the crosssectional shape is a narrow rectangle with both ends semicircular.
  • FIGURE 6 gives an enlarged view of the yarn passing round the flexible inner ring together with the neighbouring groove, shown in FIGURE 5.
  • FIGURE 1 the yarn 1, coming through the pigtail 2, runs in the direction of the arrow, and passes around the flexed inner ring 3, which together with the internally grooved ring 4, 6 and 8, constitutes the yarn guide.
  • the ilexible ring in its undistorted condition is smaller 3 than the groove.
  • the yarn is then wound up on the container 5.
  • Conventional means (not shown) are employed to rotate in an anti-clockwise direction (as shown by arrow in FIGURE 3) the yarn container 5, and to give the ring 4 a relative to-and-fro or traverse motion in an axial direction with reference .to said container.
  • the groove is rectangular in crosssection and that the flanges of the groove are unequal in depth.
  • the flexible ring is shaped like a narrow rectangle with a semicircular lower end. This can be seenY clearly in FIGURE 2 (similarly numbered to FIG- URE 1).
  • FIGURE 3 illustrates the same apparatus in plan, the parts being similarly numbered.
  • the space between the flexible ring 3 and flange of smaller depth 6 is shaded and to be seen at 7.
  • the exible ring owing to the tension of the yarn, rolls around the bottom of the groove 8, which accordingly constitutes its circle of rotation.
  • the flexible ring rolls around the groove in an anticlockwise direction and guides the yarn (in the gap 7) around with it.
  • the flexible ring If the flexible ring is the same size as the grove, it does not rotate; if the flexible ring in its undistorted condition is larger than the groove, it rotates in the same direction as it rolls (accompanied by the yarn) around the groove, the rate of rotation being given, as before, by the expression just stated above.
  • FIGURE 4 which is similarly numbered to FIGURE v 3 illustrates the case of a flexible inner ring which in its undistorted condition is larger than the groove.
  • FIGURES 1, 2, 3 and 4 For ease of assembly and dismantling the internally grooved ring has ben shown in FIGURES 1, 2, 3 and 4 as made up of three separate components 4, 6 and 8, the latter components 6 and tting into the recess of ring 4. Nevertheless it is not usually necessary to assemble the components of the ring for the purpose of threading the yarn at the commencement of winding because it is not difficult to pass the yarn, for this purpose, through the gap '7 (see FIGURE 3). Nor it it necessary to dismantle the components of the internally grooved member in order to insert the ilexible inner ring, provided Ithat the radius of the rim of at least one of the langes be large enough to permit the insertion of the flexible ring in a suitably distorted condition.
  • the radius of part of the rim of one of the anges may be increased, even to such an extent as to remove the iiange entirely from ia small part of the circumference of the rim.
  • FIGURES and 6 are similarly numbered to the former figures except that the internally grooved square plate (being in one piece) is 4. It Will be observed that the yarn 4in FIGURES 5 and 6 is shown ballooning to a much greater extent than in FIGURES 1 and 2.
  • an oblique slot can be cut through the said internally grooved member.
  • This course has however the disadvantage that owing to the open slot the dimensions of the grooved member may vary owing to distortion under stress.
  • Example 1 The internally grooved ring is made of mild steel, and the inner ring of Duralumin. Their dimensions are as follows:
  • the yarn consisting of 34 nylon filaments total denier 210) is fed byconventional means through the pig-tail 2 at 350 metres per minutes, the speed of rotation of the container 5 being adjusted to 8000 r.p.m. in an anticlockwise direction. Under these conditions the yarn has a twist (after over-end take oil) of ca. 26 turns per metre.
  • the exible ring rolls around the groove at the same speed, naturally, as the yarn circles the container. This speed depends on the size of the package. For example, when the yarn isrflrst wound on the empty container which has a diameter of 4.76 cms., the flexible ring Vrolls around the groove about 6,000 times per minute.
  • Example 2 The internally grooved ring is of mild steel and the inner ring of polytetrailuoroethylene. Their dimensions are as follows:
  • Example 3 The internal grooved ring is made of mild steel, and
  • the yarn consisting of 34 nylon filaments (total denier 210) is fed by conventnional means through the pig-tail 2 at 457 metres per minute, the speed of rotation of the container 5 being 9000 r.p.m., in an anti-clockwise direction. Under these conditions the yarn has a twist (after over-end taken olf) of ca. turns per metre.
  • a yarn guide for the over-end Winding of yarn on to a container on a rotating spindle comprising a member with an internally grooved circular aperture positioned so as to surround said container, and an inner resiliently iexible ring member, circular when undistorted but capable of flexing in the plane of its circle and adapted to be retained by the groove of said grooved aperture, which embraces over half the circumference of the flexible sing member and constrains the flexible ring member to roll in a circle in a flexed condition under the pull of the yarn, a substanti part of the circumference of the flexed ring member being in contact with the bottom of the groove and the remainder separated therefrom by a gap formed by deformation of said ring member by the yarn in passing in a non-sinuous path in contact with the periphery of the inner ring member.
  • a yarn guide as claimed in claim l wherein the member with an internally grooved circular aperture is a ring.
  • a yarn guide for the over-end winding of yarn on to a container on 1a rotating spindle comprising; a member having a circular aperture surrounding said container, the well of said aperture having a circular groove therein which is defined by a bottom wall and a pair of spaced flanges; and an inner resiliently flexible ring having a cross-sectional shape which is a narrow rectangle both ends of which are rounded, said ilexible ring being circular when undistorted and having an internal diameter when undistoited Which is close in size to the diameter of the bottom Wall of said groove and which is of sufcient size that said ring must be deformed before the yarn can pass between it and the flanges in a non-sinuous path, said ring being capable of fiexing in the plane of its circle, and retained by the groove of said grooved aperture, said groove embracing over half the circumference of the flexible ring and constrain it to roll in a circle in a flexed condition under the pull of the yarn, a substantial part of

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US206806A 1961-07-28 1962-07-02 Yarn guides for over-end winding Expired - Lifetime US3172249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27348/61A GB943295A (en) 1961-07-28 1961-07-28 Improvements in or relating to yarn guides for over-end winding

Publications (1)

Publication Number Publication Date
US3172249A true US3172249A (en) 1965-03-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
US206806A Expired - Lifetime US3172249A (en) 1961-07-28 1962-07-02 Yarn guides for over-end winding

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US (1) US3172249A (de)
CH (1) CH394889A (de)
GB (1) GB943295A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142357A (en) * 1978-01-17 1979-03-06 Sara G. Poston Yarn guide for spinning or twisting machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB114214A (en) * 1917-04-04 1918-03-28 William Gibson Improvements in Ring Spinning and Twisting of Flax and other Fibres.
US1905280A (en) * 1927-06-30 1933-04-25 George N Goddard Device for spinning and twisting textile fibers
US2083724A (en) * 1934-09-14 1937-06-15 Celanese Corp Yarn and filament twisting device
US2550761A (en) * 1949-04-21 1951-05-01 Ralph V Blackwood Spinning and twister ring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB114214A (en) * 1917-04-04 1918-03-28 William Gibson Improvements in Ring Spinning and Twisting of Flax and other Fibres.
US1905280A (en) * 1927-06-30 1933-04-25 George N Goddard Device for spinning and twisting textile fibers
US2083724A (en) * 1934-09-14 1937-06-15 Celanese Corp Yarn and filament twisting device
US2550761A (en) * 1949-04-21 1951-05-01 Ralph V Blackwood Spinning and twister ring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142357A (en) * 1978-01-17 1979-03-06 Sara G. Poston Yarn guide for spinning or twisting machine

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Publication number Publication date
GB943295A (en) 1963-12-04
CH394889A (de) 1965-06-30

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