US2811012A - Plying apparatus and method - Google Patents

Plying apparatus and method Download PDF

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Publication number
US2811012A
US2811012A US580540A US58054056A US2811012A US 2811012 A US2811012 A US 2811012A US 580540 A US580540 A US 580540A US 58054056 A US58054056 A US 58054056A US 2811012 A US2811012 A US 2811012A
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US
United States
Prior art keywords
capstans
strands
capstan
tension
ply
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
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US580540A
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English (en)
Inventor
Norman E Klein
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.)
Deering Milliken Research Corp
Milliken Research Corp
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Milliken Research 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
Priority to NL101291D priority Critical patent/NL101291C/xx
Application filed by Milliken Research Corp filed Critical Milliken Research Corp
Priority to US580540A priority patent/US2811012A/en
Priority to FR1174341D priority patent/FR1174341A/fr
Priority to GB13241/57A priority patent/GB861861A/en
Priority to CH349515D priority patent/CH349515A/fr
Application granted granted Critical
Publication of US2811012A publication Critical patent/US2811012A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn

Definitions

  • the ballooned yarn strand serves to impart rotation to the capstan unit, and by bringing the two strands together at a Y-ply point beyond the two canted capstans and along the axisof rotation of the idler gear a highly advantageous plying. action will take place, thereby forming a two-ply cord which is continuously progressed away from the ply point by a suitable means.
  • These capstans serve very elfectively to meter the yarn flow of the two strands each at the same rate to the plying point under wide variations of tension. It is, however, desirable that the tension inthe strands being plied be approximately equalized, particularly in the case of resilientor elastic materials such. as nylon, in order to avoid the formation of a plied: yarn or cord which has unbalanced twist or corkscrew con figuration, wherein tensile strength is impaired. With.
  • Still another object is to provide: a ply action array of the type having two or more capstans for metering individual strands being plied, which is arranged for selective metering or non-metering action by the capstans on the strands passing in engagement therewith.
  • a still further object is to provide a ply action array of the'type having twoor more strand engaging'capstans for metering and guiding individual strands being plied, which is arranged for selective locked-in synchronous rotat'ive movement one with the other or free rotative movement independent of one another.v
  • a preferred embodiment ofthe'. invention takes the form of a pair of symmetrically arranged capstans having individual axes of rotation canted. with respect to each other and with respect to a major axis. of rotation common to both capstangthe capstans .beingarranged for selective meshing engagementv with a common. idler gear which in turn is rotatably mounted for free-rotation about said major axis. Strands being; plied are fed to a ply point in selective substantially synchronously metered or independent relation by selectively, coupling or decoupling the capstans by selectively meshing ordemeshing gears on the capstans with the idler gear.
  • the idler gear and capstans are brought intom'eshed engage ment, and in this condition of the array the strands are substantially synchronously metered in passing to ply point, as in the above-mentioned co-pendingapplig cations, irrespective of small variations. in tensioniwhich may occur in the strands as they are fed'to the capstans, which tension variations are not sufliciently large to resu'lt inyarn slippage on the capstans. j
  • a further advantage is realized in being ahleto-substantially balance the operating" tensions off two strands: of resilient or" elastic material such 'as nylon, being. plied so that the elfective weights'per unit length. (i'. e denier ⁇ of individual strands are substantially. equal; andl sueh thatthe recovery properties of eachstrand.- are substantially equal so as to form a balanced cord construction;
  • Figure 1 illustrates schematically the general'arrange ment of a" ply action device incorporating; theinventiont:
  • Figure 2 is a plan view ofa; capstan arrangement according to the invention and as illustrated in Figure 1.-
  • Figure 3' is apartial d'iametral section view bi-ha capstan arrangement of Figure 2 taken along the line III-III.
  • Figure 4 is a partial diametral section view takenalong line IV-IV of Figure 2, and showing. the capstaneow pling, gear in its axial position whencoupled.
  • Figure 5 is a view similar to Figurev 4,. butshowing the coupling gear in its axial position whendecoupled.
  • Figure 6 is a fragmentary view of the. upper end oi the rotor shaft; of the capstan array.
  • Figures Tand 8 are side elevationsshowing the cap .stan' array in' coupled and decoupled positions, respec tively.
  • a strandof. yarn A incinan rx t andin a semi-loop or balloon about the exterior surface-'of'a cylindrical housing 19, and thence in wrap ofc apstan array .40," then in wrap-around relation about i proceeding' jto the ply point of the'two strands.
  • V Ilie 'plie d' or cord'AB' is fedfrom the ply point byf'iopstant'speed driven feedroll arrangement 25, and
  • the spindle shaft 15 feedrdllarrangement 25 and surface drive roll 29 may be synchronously driven from either common or indcpendentsources of power, as described and illustrated infthe aforementioned copending application of Klein and wrighflfandfisi therefore not shown herein.
  • capstans 42 and 44 are grooved or channelled as indicated at 80; however, this channel or groove 80 may be modified or eliminated as may be desired to fit the needs or desires in any particular instance of use.
  • the rotor shaft 60 has a central axial bore 86 therethrough having a guide 87 secured, as by a set screw 88, in an enlarged portion thereof at the upper end, which bore 86 and guide 87 serve to guidea strand B from the tensioning assembly 23 through an axial path to the capstan 44.
  • a pigtail or other type guide 89 which is fixed to the upper or head end '71 of rotor shaft 60.
  • Capstans 42 and 44 are selectively coupled together for synchronous rotation about their respective canted axes through the medium of an axially movable rotatable idler face gear 90 selectively engageable in meshed rela- 1 tion with bevel gears 82, 84 formed integral with, as
  • the extreme-upperend of shaft 60 is enlarged to form a head 71 having apair of opposed upwardly and inwardly- -inclined planar faces 72, 73 each of which supports one'of the two fstrand metering capstans 42 and 44; Eaoli of'cap'stans 42 and 44 is arranged for rotation about an axis perpendicular to the plane of its respective adjacent face 72 or 73, and to this end two stnb shafts 74 are threadedly secured each in a respective tapped bore in ,each of the planar faces 72, 73.
  • each of stub shafts 74 is a standoff "collarffli against one end of which is seated the inner face" or alow-fr iction bearing 76 held on the stub shaft by a lock ⁇ nut .85 threadedly secured on the free illustrated, or connected to the adjacent end of each of ca'pstans 42 and 44.
  • To this end face gear 9 01 hasa central shouldered recess therein which is press fitted over the outer race of a bearing 92 the retention of which is assisted by a snap ring 94 releasably fitted within a shallow groove in the inner peripheral wall 96, of said recess.
  • i' Detent means inthe form of a bent spring wire .100 is provided to selectively urge gear;90 upwardly toward and 'into'mesh with gears 82 and 84 or to frictionally aid in retaining the'gear 90 in its lowered or disengaged position.
  • 'Wire 100 is made of stiff spring stock, the upper end thereof being straight and secured as by a set screw i 102 in a longitudinal eccentrically disposed aperture 104 at'thepupper end of shaft 60.
  • detent wire 100 is disposed within a channel 186 formed in the head end and intermediate portion of shaft 60 beneath'apen ture 104, and is positioned with the bent end disposed radially outwardly and downwardly whereby it forms an effective cam surface 101 bearing against-the inner race of bearing 92.
  • the aperture 104 atan eccentric or off-center p'ositiomas illustrated, or by otherwise appropriately bending the detent wire 100 the cam surface 101 will in all positions of the idler gear and bearingassembly 90, 92 exert a radial binding force on the inner race of bearing 92.
  • a three point suspension be provided for bearing 92, and such is provided in the illustrated embodiment by the inclusion 'of a small steel ball 110 in a longitudinal slot 111, the lower end of which is provided with a 45 sloped cam surface 113, in the enlarged periphery 62 of shaft '60 at an angular position 120 from the position of detent spring 100.
  • Ball 110 is eifectively held for restrained rotation within slot 111 by a coil spring 112 bearing at one end thereagainst and at the other end against the upper end of the slot 111.
  • An effective stop for limiting movement of idler gear and bearing assembly 90, 92 downwardly is provided in the form of bearing separator washer 66.
  • a shallow circumferential groove (not shown.) may be pro vided in the inner periphery of the inner race of bearing 92, such that the free end or point of detent 100' will engage therewith in the lowered positions of the bearing, although this retention groove arrangement has not proven to be necessary in practice.
  • the balloon strand A is fed through strandaligning guide 89 to and in wrap-around relation about the periphery of capstan 42 and thence to the Y plypoint, while strand B is fed through bore 86, guide 87, in reverse. wrap-around relation about the periphery of capstan 44 and thence to the Y ply-point, from which point the plied cord AB proceeds over feed roll arrang ment 25 and thence to take-up bobbin 27.
  • the operator makes a preliminary approximate adjustment of tension assemblies 13 and 23, as dictated by the speed at which the apparatus is to be run and the type of strand material involved.
  • the tension to be imparted to strand A will be that which is necessary to yield the desired balloon size for the particular strand A at the operating speed.
  • the spindle While the spindle is stopped he then grasps gear 99 and disengages it from capstan bevel gears 82 and 84 to thereby decouple the capstans 42 and 44 for independent rotation about their respective axes.
  • the spindle shaft 15 and cord feed and take-up assemblies 25, 27 are then started and the strands A and B are thereby caused to be pulled from their respective sources of supply and fed over capstans 42 and 44 respectively and into plying engagement at the Y ply-point.
  • this procedure may be repeated until the strand tensions are properly balanced.
  • the operator Upon achieving proper balance of'the tension in the two strands A and B, as indicated by the centering of the ply point, the operator then, while the machine is stopped, grasps the gear and moves it axially upward and into meshing engagement with capstan bevel gears 82' and '84 to thereby couple the two capstans together for. synchronous rotation about their respective axes.
  • the apparatus may then be again started and the capstans 42 :and 44 will, through theirmetering action on the individual strands, serve to hold the ply point constant and feed each of the strands to the ,ply point at the same rate and tinder substantially the same tension irrespective of small variations in tension which may occur in the strands as they are fed to the input side of the capstans.
  • this apparatus provides among its many advantages the dual advantage of ease in initial adjustments and balancing of the tensions'in the strands, being plied by visual observation of the ply point, while also permitting in the actual production operation of the apparatus greater maladjustment in tension balance in the separate strands yet stillv producing. a good and: Of advantage also is the fact that the apparatus and method do not depend for their utility on the accuracy of calibra-ti'ouof strand tension devices, etc..-,"since the tension adjustment is by comparison andnotby absohlte measurement.
  • the apparatus is not limited to a construction embodying only two metering capstans, but may if desired be modified to include three, four or more metering capstans for the plying together of larger numbers of strands, or for the passage of each strand over two or more capstans.
  • a ply action apparatus comprising a strand metering'device having at least two strand metering capstans, said metering device being adapted to rotate and said capstans being adapted to each engage a respective one of two separate strands for synchronous metering thereof to a ply point therebeyond, and means for selectively coupling and decoupling said capstans.
  • Apparatus according to claim 1 wherein there is further provided means for adjusting the tension on at least one of said strands.
  • An equalizer capstan'array comprising at least two capstans mounted for rotation about a common major axis and each about an axis separate from said major axis, and coupling means adapted to selectively couple together and decouple said capstans.
  • each of said capstans is rotatable about a separate axis canted with respect to each other.
  • said coupling means comprises a coupling gear mounted for rotation about said major axis, said capstans each having gears adapted to mesh with said coupling gear.
  • said coupling means comprises a member adapted to move axially along said major axis, and means for holding said member selectively in coupled positions.
  • An equalizer capstan array according to claim 3, wherein said coupling means comprises a movable memher, and detent means for holding said memberselectively in coupled and decoupled positions, said detentmeans being operative in response to rotation of said capstans about said axis to exert an increased movement-restraining force on said member as compared to the movement restraining force exerted while stationary.
  • a ply action apparatus comprising a strand metering device having a pair of selectively coupled strand metering capstans, means for generating a balloon of a first strand from a first source, means for guiding a second strand substantially along the axis of said balloon, said metering device being rotatable about said balloon axis, said capstans being adapted to each engage a respective one of said strands for synchronous metering thereof to 2. ply point therebeyond, means for decoupling said capstans, and means for adjusting the tension on at least one of said strands.
  • Method of twisting together at least two strands at a Y-shaped ply point and equalizing the tension in said strands as they approach said ply point comprising feeding said strands under two separate conditions into said ply point from spaced apart points transversely spaced from the twist axis, one of said conditions permitting said strands to feed freely to said ply point at independently coupled a variable rates, each of the rates being a function of the tension in the individual strands, and the second of said conditions comprising maintaining said yarns in positive synchronized one-to-one feed relation from said spaced apart points to said ply point; and adjusting the tension on at least one of said strands, so as to center the ply point during twisting under said first condition; said second condition following said first condition and constituting the normal twisting condition after initial setting of strand tension.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Ropes Or Cables (AREA)
US580540A 1956-04-25 1956-04-25 Plying apparatus and method Expired - Lifetime US2811012A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL101291D NL101291C (enrdf_load_stackoverflow) 1956-04-25
US580540A US2811012A (en) 1956-04-25 1956-04-25 Plying apparatus and method
FR1174341D FR1174341A (fr) 1956-04-25 1957-04-24 Dispositif et procédé pour câbler des fils
GB13241/57A GB861861A (en) 1956-04-25 1957-04-25 Improvements in apparatus for plying strands of yarn
CH349515D CH349515A (fr) 1956-04-25 1957-04-25 Procédé de câblage d'au moins deux fils, et machine pour la mise en oeuvre de ce procédé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US580540A US2811012A (en) 1956-04-25 1956-04-25 Plying apparatus and method

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US2811012A true US2811012A (en) 1957-10-29

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US580540A Expired - Lifetime US2811012A (en) 1956-04-25 1956-04-25 Plying apparatus and method

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US (1) US2811012A (enrdf_load_stackoverflow)
CH (1) CH349515A (enrdf_load_stackoverflow)
FR (1) FR1174341A (enrdf_load_stackoverflow)
GB (1) GB861861A (enrdf_load_stackoverflow)
NL (1) NL101291C (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902817A (en) * 1957-10-09 1959-09-08 American Enka Corp Plying device
US2914903A (en) * 1955-06-01 1959-12-01 Deering Milliken Res Corp Apparatus for plying yarns
US2944383A (en) * 1958-10-01 1960-07-12 Duplan Corp Composite yarn and method of producing same
US2949725A (en) * 1957-06-06 1960-08-23 Pirelli Twisting head for two-fold yarn
US3066472A (en) * 1958-04-16 1962-12-04 Deering Milliken Res Corp Method and apparatus for handling strands
US3295304A (en) * 1964-09-09 1967-01-03 Apparatus for twisting and plying strands
US3336740A (en) * 1966-10-31 1967-08-22 Alfred W Vibber Low-tension strand-plying method and apparatus
US3499277A (en) * 1967-06-06 1970-03-10 Alfred W Vibber Apparatus for twisting and plying strands
US4309867A (en) * 1979-11-30 1982-01-12 Katsuzo Ichikawa Yarn covering apparatus
US4689942A (en) * 1985-08-07 1987-09-01 Compagnie Generale Des Establissements Michelin Device and method for assembling threads
CN108130770A (zh) * 2017-10-29 2018-06-08 泰州亚东链条有限公司 一种吊索加工装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2679261A1 (fr) * 1991-07-16 1993-01-22 Ic Bt Lyon Machine de cablage de fils comportant un ensemble regulateur de tension et de longueur perfectionne.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752749A (en) * 1951-01-30 1956-07-03 Doutors Sa Holding Regularizing the tension of threads in spinning

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752749A (en) * 1951-01-30 1956-07-03 Doutors Sa Holding Regularizing the tension of threads in spinning

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914903A (en) * 1955-06-01 1959-12-01 Deering Milliken Res Corp Apparatus for plying yarns
US2949725A (en) * 1957-06-06 1960-08-23 Pirelli Twisting head for two-fold yarn
US2902817A (en) * 1957-10-09 1959-09-08 American Enka Corp Plying device
US3066472A (en) * 1958-04-16 1962-12-04 Deering Milliken Res Corp Method and apparatus for handling strands
US2944383A (en) * 1958-10-01 1960-07-12 Duplan Corp Composite yarn and method of producing same
US3295304A (en) * 1964-09-09 1967-01-03 Apparatus for twisting and plying strands
US3336740A (en) * 1966-10-31 1967-08-22 Alfred W Vibber Low-tension strand-plying method and apparatus
US3499277A (en) * 1967-06-06 1970-03-10 Alfred W Vibber Apparatus for twisting and plying strands
US4309867A (en) * 1979-11-30 1982-01-12 Katsuzo Ichikawa Yarn covering apparatus
US4689942A (en) * 1985-08-07 1987-09-01 Compagnie Generale Des Establissements Michelin Device and method for assembling threads
CN108130770A (zh) * 2017-10-29 2018-06-08 泰州亚东链条有限公司 一种吊索加工装置

Also Published As

Publication number Publication date
GB861861A (en) 1961-03-01
CH349515A (fr) 1960-10-15
FR1174341A (fr) 1959-03-10
NL101291C (enrdf_load_stackoverflow)

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