US2873570A - Double twist spindles - Google Patents

Double twist spindles Download PDF

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Publication number
US2873570A
US2873570A US650781A US65078157A US2873570A US 2873570 A US2873570 A US 2873570A US 650781 A US650781 A US 650781A US 65078157 A US65078157 A US 65078157A US 2873570 A US2873570 A US 2873570A
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US
United States
Prior art keywords
axis
shaft
spindle
spindle shaft
yarn
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Expired - Lifetime
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US650781A
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English (en)
Inventor
Sage Paul
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MECANIQUES VERDOL Ste
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MECANIQUES VERDOL Ste
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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
    • D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist
    • D01H7/864—Coupling devices between the fixed and the rotative parts

Definitions

  • This invention relates to twisting spindles wherein the yarn is imparted two turns at each revolution of the spindle.
  • the supply bobbin of the spindle is generally immovable, the yarn entering the upper end of the tubular rotating shaft of the spindle and issuing therefrom laterally below the said bobbin to be returned upwardly above the latter.
  • the yarn thus rotates around the bobbin which cannot be directly carried by a fixed support and should therefore be rotatably supported by the rotating parts and prevented from rotating therewith.
  • this is obtained by mounting the bobbin on an auxiliary support which is rotatably mounted on the upper part of the rotating shaft of the spindle, and also on the upper part 'of' an outer rotating member disposed around the said shaft and in parallel but non-coaxial relation therewith.
  • the auxiliary support is mounted about two parallel but different geometrical axes and is therefore positively prevented from rotating, while the outer member may be formed with an appropriate opening to permit passage of the yarn issuing from the inner bore of the said shaft below the bobbin.
  • the outer member should of course rotate in unison with the spindle shaft.
  • the tubular arm it is easy to verify that owing to the non-coaxial disposition of the outer member with respect to the spindle shaft the tubular arm'engages the said member at a variable distance from the axis of the shaft, which results in a variable angular velocity being imparted to the outer member, whereby the latter causes vibration of thespindle.
  • the outer member oscillates with a very large amplitude, which causes severe vibration and spect to the spindle shaft.
  • such a joint comprises an intermediate member pivoted about an axis situated in the plane of the axes of the'spindle shaft and of the outer member, midway of these latter axes, the said intermediate member being formed with two opposed bifurcated arms which engage respectively a pin carried by the spindle shaft and a pin carried by the outer member, the effective radii of such pins with respect to the corresponding rotational axes of the spindle shaft and of the outer member being equal.
  • Fig. 1 is a general vertical section of a double twist spindle according to this invention.
  • Fig. 2 is a horizontal section thereof taken along line II-II of Fig. 1.
  • Fig. 3 is a very diagrammatical representation of the homokinetic joint interposed between the spindle shaft and the outer rotating member in the spindle of Figs. 1 and 2.
  • Figs. 4 to 6 illustrate other embodiments of such a homokinetic joint.
  • reference numeral 1 designates a supporting iron on which a tubular column .2 is secured 'by means of bolts such as 3.
  • a ball bearing 4 which supports a spindle shaft 5.
  • the lower end of shaft 5 carries a driving pulley 6, immediately below support 1 while its upper end,
  • the outer cylindrical periphery of the tubular column 2 is :not co-axial to the inner bore thereof, its axis P being parallel to, but slightly spaced from the aboveanentioned axis 0.
  • This periphery carries two ball bearings 8 and 9 which rotatably support a drum member 10 which is flanged at its upper end, as indicated at 10a.
  • On this flanged portion ltla are secured four hexagonal rods 11 (Fig. 2) which extend vertically and which support an upper rotating plate 12 (Fig. 1).
  • drum 10, rods 11 and plate 12 form; a rigid unit, or outer rotating member, which is disposed to rotate about the aforesaid axis P, i. e. WLiCh is offset with respect to the spindle shaft .5.
  • the upper portion of the spindle shaft 5 situated above the upper end of the tubular column 2 carries two ball bearings 13 and 14 which support an intermediate support 15 adapted tocarry the yarn package or bobbin 16, thesaid intermediate support having for this purpose .a fiangedupper end 15a on which a plate .17 is secured by means of bolts 18, and the said plate 17. .beingformed xwith an upward tubular extension 17a on which the bob- -.bi n 16is mounted.
  • a cup-shaped member 19 is prefer-
  • the homokinetic joint employed may be of any kind.
  • the intermediate support. 15 has a cylindrical downward extension 15b which is. non-coaxial to the ball bearings 13 and 1.
  • the outer cylindrical surface of the upper end of the lower tubular column 2 is slightly offset with respect to 'the remainder of the periphery of the said column, its
  • axisR being situated in the plane of axes O and P, midway of the latter axes.
  • This upper end carries a ball hearing 21 which in turn supports a ring 22 formed with two opposed bi-furcated projections 22a (Fig. 2) which engage respectively a small roller 23 (Fig. l) loose on a pin 24 secured to the upper flanged portion a of the drum member 10 by a nut 25,'and a small roller 26 loose on a pin 27 secured by a nut 28 on a plate 29 keyed on shaft 5 in the portion thereof comprised between the upper end of column 2 and the lower end of the lower boss b of the intermediate support 15, the respective radial distances of pins 24 and 27 from their rotational axes P and 0 being equal.
  • Ring 22 forms a driving connection between the spindle shaft 5 and the outer member 101112 since, as clearly indicated in the diagrammatical representation of Fig. 3, when pin 27 rotates together with shaft 5 about the axis 0 thereof, it drives the corresponding bi-furcated portion 22a, that is ring 22 itself, which rotates about axis R, the other bi-furcated portion 22a of the said ring in turn driving pin 24 which rotates about axis P together with the outer member 1t)1112.
  • the Whole arrangement being always symmetrical with respect to axis R, the angular displacements of pins 27 and 24 are always equal, which amounts to say that the connection between shaft 5 and the outer member 10-11-12 is a homokinetic joint.
  • the outer member thus rotates at a perfectly constant angular velocity, without causing any vibration.
  • the angular velocity of ring 22 is not regular, since the radial distance between the axis R of this ring and pins 24 and 27 varies. But this variation is small, since it only corresponds to the distance PR or R0, i. e. half the distance between the axis P of the outer member and the axis 0 of the spindle shaft.
  • ring 22 is a very small part of reduced weight and this minor irregularity of its angular velocity has no practical influence on the operation of the spindle.
  • the yarn 30 to be twisted is unwound from the package or bobbin 16 and enters the upper end of the tubular extension 17a from which it passes axially into the upper bore 5a of shaft 5.
  • the lower end of bore 5a is connected by a b cnt'passage 5b with a radial bore 29a formed in plate 29.
  • the yarn 30 passes through a guiding eyelet 31 carried by the flanged lower end 32a of an annular member 32 secured to the upper face of plate 29 and adapted to form a protecting casing around the lower end of the intermediate support 15.
  • each one may only be operative in a given direction, as for instance for exerting a tractive effort.
  • the connecting rods of Fig. 4 may therefore be replaced by the virtual connecting rods of Fig. 5 wherein each pin 124 of the outer member engages the inner periphery of a ring 34 secured to the spindle shaft (or to a plate member keyed on the latter), such ring having its centre at a radial distance from the axis 0 of the shaft equal to the radial distance of the pin 124 fromits own axis P and the inner radius of the said ring being equal to the distance between axes O and P plus the radius of pin 124.
  • Fig. 6 illustrates another modification'wherein a single connecting rod 33 is solid with an arm 35 disposed sub- .stantially at right angles thereto, the ends of the said arm being pivotally attached to two radial arms 36 and 37 adapted to form a parallelogram.
  • arm 36 is pivoted to pin 127 and is rotatable about axis 0, while arm 37, equal in length to arm 36, is pivoted about an individual axis S.
  • arm 36 is purely virtual and may be dispensed with in actual practice, since pin 127 is already pivotally connected with axis 0 by means of plate 29 of Fig. 1.
  • a double twist spindle for yarns and the like comprising a fixed support; a spindle shaft rotatably carried by said fixed support to rotate about its own axis, said .spindle shaft being formed with a yarn passage extending from the upper end thereof to a point of the periphery of said shaft spaced from said upper end; a hollow outer member surrounding the portion of said spindle shaft comprising the lower end of said yarn passage, said outer member being rotatably carried by said fixed support to rotate about an axis'substantially parallel to, but slightly spaced from the axis of said spindle shaft, and said member being laterally apertured for passage of the yarn issuing from the lower end of said yarn passage; an intermovements of said spindle shaft and of said outer memyarn to be twisted; and a rigid homokinetic joint interposed between said spindle shaft and said outer member to cause said member to rotate in unison with said shaft.
  • a double twist spindle for yarns and the like commember surrounding the portion of said spindle shaft comprising file lower end of said yarn passage, said outer member being rotatahly carried by said fixed support I ,torotate about an axis substantially. parallel to, but slight- Iy spaced from the axis of said spindle shaft, and said member being laterally apertured for passage of the yarn issuing from the lower end of said yarn passage; an intermediate support rotatably mounted on said spindle shaft about the axis of said shaft and also rotatably mounted on said outer member about the axis of said member, so as to remain immovable irrespective of the rotational movements of said spindle shaft and of said outer member, said intermediate support being adapted to carry the yarn to be twisted; and a homokinetic joint interposed between said spindle shaft and said outer member to cause said member to rotate in unison with said shaft, said homokinetic joint comprising a first substantially cylindrical vertical pin rotatably carried by said spindle shaft at a radial distance
  • a double twist spindle for yarns and the like comprising a fixed supporting column; a spindle shaft rotatably carried by said fixed column to rotate about its own axis, said shaft being formed with a yarn passage extending from the upper end thereof to a point of the periphery of said shaft spaced from said upper end; a drum member rotatably mounted on the periphery of said fixed column to rotate about an axis substantially parallel to, but slightly spaced from the axis of said spindle shaft, said drum member being disposed below the lower end of said yarn passage; an upper annular member disposed above said drum member in co-axial and spaced relation therewith; means to connect said upper annular member with said drum member to cause same to form a single substantially rigid outer unit, said means leaving a lateral passage for the yarn issuing from the lower end of the yarn passage of said shaft; an intermediate support mounted on the upper end of said spindle shaft above said annular member so as to rotate relatively to said spindle shaft about the axis thereof, and also mounted on
  • said homokinetic joint comprising a plate member keyed on said spindle shaft substantially between said drum member and said annular member, said plate member being formed to permit passage of the yarn issuing from the lower end of the yarn passage of said shaft; a first substantially cylindrical vertical pin carried by the lower side of said plate member at a radial distance from the axis of said shaft; a second substantially cylindrical vertical pin carried by the upper end of said drum member at a radial distance from the axis of said drum member equal to said first-named radial distance; and a connect ing member rotatably carried by the upper end of said fixed column to rotate about an axis disposed in the plane of the axes of said shaft and of said drum member, parallel to said latter axes and midway between same, said connecting member being formed with two diametrically opposed outwardly directed bi-furcated portions respectively engaging said first and said second pins.
  • said connectmg means being formed of substantially vertical stays spaced from each other and having their lower ends secured to the upper end of said drum member and their upper ends secured to the lower side of said annular member; and said spindle shaft carrying a plate member disposed between said drum member and said annular member, said plate member extending radially beyond said stays, but being formed with holes for passage of same with a clearance at least equal to the distance between the axis of said spindle shaft and the axis of said drum member.
  • said connecting means being formed of substantially vertical stays spaced from each other and having their lower ends secured to the upper end of said drum member and their upper ends secured to the lower side of said annular member; and said spindle shaft carrying a plate member disposed between said drum member and said annular member, said plate member extending radially beyond said stays, but being formed with holes for passage of same with a clearance at least equal to the distance between the axis of said spindle shaft and the axis of said drum member, and said plate member being formed with a radial yarn passage registering with the lower end of the yarn passage of said spindle shaft.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US650781A 1956-04-12 1957-04-04 Double twist spindles Expired - Lifetime US2873570A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1147652T 1956-04-12

Publications (1)

Publication Number Publication Date
US2873570A true US2873570A (en) 1959-02-17

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US650781A Expired - Lifetime US2873570A (en) 1956-04-12 1957-04-04 Double twist spindles

Country Status (5)

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US (1) US2873570A (fr)
CH (1) CH336297A (fr)
DE (1) DE1050695B (fr)
FR (1) FR1147652A (fr)
GB (1) GB817987A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788055A (en) * 1972-01-27 1974-01-29 C Gabalda Device for double twisting textile yarn
US3855773A (en) * 1973-05-07 1974-12-24 Phillips Fibers Corp Two-for-one twister
US4137702A (en) * 1976-11-30 1979-02-06 Skf Compagnie D'applications Mecaniques Double torsion twisting mechanisms
US4158282A (en) * 1977-03-04 1979-06-19 Skf Compagnie D'applications Mecaniques Twister mechanism with elastic part
US4167094A (en) * 1977-04-28 1979-09-11 Verdol S.A. Spindles for twisting machines
US4209967A (en) * 1978-03-01 1980-07-01 Skf Compagnie D'applications Mechaniques Resilient coupling device for textile twisting apparatus
US4254611A (en) * 1978-09-04 1981-03-10 Skf Compagnie D'applications Mechaniques Textile twister mechanism
US5085045A (en) * 1990-06-06 1992-02-04 Kabushiki Kaisha Ishikawa Seisakusho Ltd. Double twist spindle apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1397135A (fr) * 1963-05-27 1965-04-30 Pain Bourgeas Ets Dispositif de double torsion pour fils textiles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521601A (en) * 1948-02-10 1950-09-05 Planet Felix Thread twisting device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521601A (en) * 1948-02-10 1950-09-05 Planet Felix Thread twisting device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788055A (en) * 1972-01-27 1974-01-29 C Gabalda Device for double twisting textile yarn
US3855773A (en) * 1973-05-07 1974-12-24 Phillips Fibers Corp Two-for-one twister
US4137702A (en) * 1976-11-30 1979-02-06 Skf Compagnie D'applications Mecaniques Double torsion twisting mechanisms
US4158282A (en) * 1977-03-04 1979-06-19 Skf Compagnie D'applications Mecaniques Twister mechanism with elastic part
US4167094A (en) * 1977-04-28 1979-09-11 Verdol S.A. Spindles for twisting machines
US4209967A (en) * 1978-03-01 1980-07-01 Skf Compagnie D'applications Mechaniques Resilient coupling device for textile twisting apparatus
US4254611A (en) * 1978-09-04 1981-03-10 Skf Compagnie D'applications Mechaniques Textile twister mechanism
US5085045A (en) * 1990-06-06 1992-02-04 Kabushiki Kaisha Ishikawa Seisakusho Ltd. Double twist spindle apparatus

Also Published As

Publication number Publication date
DE1050695B (fr)
CH336297A (fr) 1959-02-15
FR1147652A (fr) 1957-11-28
GB817987A (en) 1959-08-12

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