US3018604A - Device for drawing off equal thread lengths from two feed spools - Google Patents

Device for drawing off equal thread lengths from two feed spools Download PDF

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Publication number
US3018604A
US3018604A US859943A US85994359A US3018604A US 3018604 A US3018604 A US 3018604A US 859943 A US859943 A US 859943A US 85994359 A US85994359 A US 85994359A US 3018604 A US3018604 A US 3018604A
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United States
Prior art keywords
bobbins
thread
roller
bobbin
threads
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Expired - Lifetime
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US859943A
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English (en)
Inventor
Lenk Wilhelm
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.)
Oerlikon Barmag AG
Original Assignee
Barmag Barmer Maschinenfabrik AG
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Publication date
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/10—Spinning or twisting machines in which the product is wound-up continuously for imparting multiple twist, e.g. two-for-one twisting
    • D01H1/105—Arrangements using hollow spindles, i.e. the yarns are running through the spindle of the unwound bobbins
    • D01H1/106—Two-for-one twisting
    • D01H1/108—Two-for-one twisting for two or more supply bobbins one on top of the other

Definitions

  • This invention relates to an apparatus or device for drawing off equal thread lengths from a pair of bobbins or feed spools which rotate independently on the same axis.
  • the invention provides an improve ment in the textile apparatus known as a double twist twisting machine, sometimes referred to as a multiple twister a two for-one twisting machine.
  • One object of the present invention is to provide a satisfactory and improved device for drawing off equal lengths of thread from two bobbins, thereby also avoiding the problems of a single feed spool.
  • Another object of the invention is to provide a double twist twisting machine capable of handling a large volume of thread in commercial applications.
  • Yet another object of the invention is to obtain a uniformly twisted thread product free of knots, slack threads and the like.
  • FIG. 1. is a side elevational and partially schematic View of a double twist twisting machine constructed in accordance with the improvement of the present invention
  • FIG. 2 is a top View of the same
  • FIG. 3 is an enlarged view of one portion of the apparatus, illustrating a preferred embodiment of the inven tion.
  • FIG. 4 is an enlarged view of another portion of the apparatus illustrating a suitable swivel joint.
  • the roller means of the apparatus essentially include a unitary or single acting, cylindrical roller which is positioned during operation of the apparatus to rest against the outer thread surfaces of the bobbins and in rolling contact therewith, the axis of the roller being approximately parallel to the axis of the bobbins.
  • the roller is preferably mounted for rotation between the oppositely disposed arms of a yoke which in turn is connected to the stationary frame for reciprocating movement in a plane approximately perpendicularly to the axis of the bobbins.
  • roller and its supporting yoke can swing toward or turn away from the spindle and bobbins, but are normally urged inwardly for rolling contact against the bobbins by a spring or the like with sufficient force to provide constant contact with the thread surface.
  • the oppositely disposed arms carrying the roller be pivotally mounted by means of a common shaft of the yoke such that the roller can pivot slightly inwardly against either bobbin, for example with bobbins having a difference in their diameters.
  • the roller is then mounted in the manner of a universal joint, being spring urged in one direction towards the spindle and bobbins, and its axis or rotating shaft being pivotable about its center point. A good frictional contact with the thread surfaces of both bobbins is thereby assured.
  • bobbin is employed herein to describe a thread wound spool, i.e. both the spool and its thread pack-age which is unwound or drawn off in the usual fashion during the thread twisting operation.
  • thread herein is employed to include various fiber forms including yarns, strings, tows, filament bundles and the like.
  • the fibers may be natural or synthetic and the thread may be composed of continuous filaments or staple fibers.
  • FIG. 1 discloses a double twist twisting machine, partlyin schematic form and with certain conventional portions omitted.
  • a stationary frame is provided by spool carrier 1 and various elements connected thereto.
  • the spool carrier 1 is maintained in a stationary position in a conventional manner, e.g. by means of an eccentric weight located on one side of the carrier while inclining the machine from the vertical position shown.
  • a stationary spool carrier can also be achieved by mounting one or more magnets around the carrier at a sufficient distance therefrom to permit passage of the ballooning thread; These magnets are placed opposite other magnets in or on the spool carrier itself, and the attraction between opposing magnets holds the carrier in place. Since these methods of holding the carrier stationary have become quite standard in the art, the drawings have been simplified to avoid showing the corresponding elcmentsof the apparatus.
  • a hollow spindle 2 extends above the spool carrier 1 and carries rotatably thereon two separate hollow spoolreceiving holders 3 and 4, which fit tightly into the two bobbin spools 5 and 6 which carry thread packages 7 and 8.
  • the bobbins are wound such that the spools must rotate as the thread is drawn therefrom.
  • a stable basket frame is completed by the upper ring 13 connected to spool carrier 1 by side supports such as the cross members 33 and 34.
  • a turnable shaft or tube 11 is seated at either end, for example by prong 9 to the carrier 1 and by prong 10 to the upper ring 13.
  • the tube 11 has attached thereto, at right angles and about midway between its ends, a swinging arm or yoke handle 12, which is preferably constructed with a swivel or pivot joint 35 as shown in FIG. 4 so that it will freely rotate or pivot on its own axis at its free end.
  • the free end is shaped in the form of a U-shaped or V-shaped or Y-shaped yoke with two oppositely opposed arms 14 and 15 between which is rotatably mounted a friction roller 16.
  • Bobbin engaging surfaces are provided on the enlarged cylindrical ends 17 and 18 of the roller which may rotate around the center axle as shown in FIG. 1 or whichmay be integral with the center axle as shown in FIG. 3.
  • the tube 11 is pretensioned by means of a torsion spring 19 and is caused to rotate with arm 12, thereby urging the roller surfaces 17 and 18 inwardly against the two corresponding bobbins 7 and 8 along a circumferential surface thereof.
  • the pivot linkage or joint 35 in arm 12 assures that both ends of the roller will press against the bobbins.
  • the threads 20 and 21 are drawn off laterally from each bobbin 7 and 8 and conducted through quide eyelets or hooks 22 and 23 on cross member 33.
  • the threads are then conducted in common to a third guide eyelet 24 on the upper ring 13 and around the end of the bobbins over the guide roller 25 and into the hollow bore 26 of the spindle 2.
  • the threads are then drawn through the bore 26 and outwardly through a rotating annular channel or slot (not shown) and to the thread reserve disc 27, all in the conventional manner of a double twist twisting machine.
  • the thread as it emerges from the reserve disc 27 is led outwardly in a rotating balloon 28 around the end of the bobbins, through eyelet 29, over a preliminary draw-oh roll 30 and onto a take-up reel or draw-off rolls 31 and 32, these rolls representing the point at which drawing or unwinding of the threads from the bobbins originates.
  • the roller 16 and especially the outer contacting surfaces 17 and 18 are most conveniently made of a synthetic resin, such as nylon, in order to avoid thread damage. Greater frictional contact is obtained if the surfaces 17 and 18 are grooved, indented, ribbed or otherwise given an uneven surface contour as shown in FIG. 3.
  • roller 16 with means to urge it inwardly against the bobbins causes the running surfaces 17 and 18 to lie or rest with equal pressure on the circumference formed by the thread packages 7 and 8.
  • This rolling frictional contact exercises either a braking effect or an acceleration of the drawing-off velocity of the threads so that one bobbin neither runs ahead of nor falls behind the other bobbin.
  • the friction roll tends to brake the first bobbin while also accelerating the second bobbin. In this manner, equal thread lengths are drawn off, even if there is a difference in the outer diameter of the two bobbins.
  • the apparatus of the present invention is particularly suitable in the operation of a double twist twisting machine, it can also be employed in any operation where the essential problem is to draw equal and uniform thread lengths from two unwinding bobbins rotating independently on the same axis.
  • This axis may be in a vertical position or in any inclined position down to and including the horizontal.
  • the present invention substantially completely obviates this difficulty, and also avoids the necessity of a preliminary Winding of two threads on the same spool.
  • the present invention is especially useful because it provides a much simplified and more economical operation.
  • Apparatus for drawing equal lengths of thread from a pair of bobbins independently rotating on the same axis which comprises: a spindle upon which said bobbins are rotatably mounted; a stationary frame adjacent to said spindle and bobbins; roller means connected to said frame and including for each bobbin a substantially cyclindrical roller; means to resiliently urge each of said cyclindrical rollers for rotation tangentially against an outer circumferential surface of its respective bobbin; and means interconnecting said cylindrical rollers independently of said bobbins for synchronization of their rate of revolution.
  • Apparatus for drawing equal lengths of thread from a pair of bobbins independently rotating on the same axis which comprises: a spindle upon which said bobbins are rotatably mounted; a stationary frame adjacent to said spindle and bobbins; roller means including a yoke with two oppositely disposed arms, said yoke being connected to said frame for reciprocating movement in a plane approximately perpendicularly to the axis of said bobbins, and also including a single substantially cylindrical roller rotatably mounted between said oppositely disposed arms on a common axle and extending transversely of both bobbins; and means to resiliently urge said yoke and roller for rotation of the roller tangentially against an outer circumferential surface of each of said bobbins.
  • a double twist twisting machine the improvement which comprises: a hollow spindle; means to receive two bobbins in a position adjacent each other for independent rotation of said bobbins around the axis of said spindle; guide means to lead a thread outwardly from each bobbin as said thread unwinds therefrom, and to further lead each thread around one end of said bobbins, through said hollow spindle, and then outwardly in a rotating balloon around the other end of said bobbins whereby a twist is imparted to said threads, said guide means including a common guide member where said threads are joined prior to twisting; a stationary frame including means to support said bobbins; roller means connected to said frame; and means to resiliently urge said roller means for rotation tangentially against an outer circumferential surface of each of said bobbins.
  • a double twist twisting machine the improvement which comprises: a hollow spindle; means to receive two bobbins in a position adjacent each other for independent rotation of said bobbins around the axis of said spindle; guide means to lead a thread outwardly from each bobbin as said thread unwinds therefrom, and to further lead each thread around one end of said bobbins, through said hollow spindle, and then outwardly in a rotating balloon around the other end of said bobbins whereby a twist is imparted to said threads, said guide means including a common guide member where said threads are joined prior to twisting; a stationary frame including means to support said bobbins; roller means connected to said frame and including a substantially cylindrical roller for each bobbin; means to resiliently urge each of said cylindrical rollers for rotation tangentially against an outer circumferential surface of its respective bobbin; and means interconnecting said cylindrical rollers independently of said bobbins for synchronization of their rate of revolution.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US859943A 1958-12-24 1959-12-16 Device for drawing off equal thread lengths from two feed spools Expired - Lifetime US3018604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB51568A DE1128331B (de) 1958-12-24 1958-12-24 Ausgleichsvorrichtung fuer den Fadenabzug von zwei abrollenden Spulen

Publications (1)

Publication Number Publication Date
US3018604A true US3018604A (en) 1962-01-30

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Application Number Title Priority Date Filing Date
US859943A Expired - Lifetime US3018604A (en) 1958-12-24 1959-12-16 Device for drawing off equal thread lengths from two feed spools

Country Status (6)

Country Link
US (1) US3018604A (de)
BE (1) BE581806A (de)
CH (1) CH375641A (de)
DE (1) DE1128331B (de)
FR (1) FR1237995A (de)
GB (1) GB934763A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099418A (en) * 1962-02-12 1963-07-30 Schustack Robert Anti-backlash device for knitting machines
US4067180A (en) * 1975-10-06 1978-01-10 Saurer-Allma Gmbh, Allgauer Maschinenbau Bobbin holder arrangement for a double twist thread twisting spindle
US4439979A (en) * 1981-04-30 1984-04-03 Verdol S.A. Double twist spindle assembly
US4667891A (en) * 1980-09-08 1987-05-26 Minnesota Mining And Manufacturing Co. Masking machine
US20120291682A1 (en) * 2010-01-28 2012-11-22 Coats Plc Method of feeding thread to a sewing machine and sewing machine thread feed

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL256262A (de) 1959-11-17

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US117644A (en) * 1871-08-01 Improvement in tension apparatus for wax-thread sewing-machines
US1605276A (en) * 1923-04-28 1926-11-02 Barber Colman Co Creel brake
US2504020A (en) * 1946-10-18 1950-04-11 Western Electric Co Strand tensioning apparatus
US2596428A (en) * 1949-07-16 1952-05-13 Donald W O'malley Tensioning device
US2718363A (en) * 1952-01-17 1955-09-20 American Viscose Corp Tension control device
US2976017A (en) * 1958-07-07 1961-03-21 Le Bus Royalty Company Pressure bar for cable spooling drums

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US117644A (en) * 1871-08-01 Improvement in tension apparatus for wax-thread sewing-machines
US1605276A (en) * 1923-04-28 1926-11-02 Barber Colman Co Creel brake
US2504020A (en) * 1946-10-18 1950-04-11 Western Electric Co Strand tensioning apparatus
US2596428A (en) * 1949-07-16 1952-05-13 Donald W O'malley Tensioning device
US2718363A (en) * 1952-01-17 1955-09-20 American Viscose Corp Tension control device
US2976017A (en) * 1958-07-07 1961-03-21 Le Bus Royalty Company Pressure bar for cable spooling drums

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099418A (en) * 1962-02-12 1963-07-30 Schustack Robert Anti-backlash device for knitting machines
US4067180A (en) * 1975-10-06 1978-01-10 Saurer-Allma Gmbh, Allgauer Maschinenbau Bobbin holder arrangement for a double twist thread twisting spindle
US4667891A (en) * 1980-09-08 1987-05-26 Minnesota Mining And Manufacturing Co. Masking machine
US4439979A (en) * 1981-04-30 1984-04-03 Verdol S.A. Double twist spindle assembly
US20120291682A1 (en) * 2010-01-28 2012-11-22 Coats Plc Method of feeding thread to a sewing machine and sewing machine thread feed

Also Published As

Publication number Publication date
DE1128331B (de) 1962-04-19
GB934763A (en) 1963-08-21
FR1237995A (fr) 1960-08-05
BE581806A (fr) 1960-02-19
CH375641A (de) 1964-02-29

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