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US2668671A - Winding machine - Google Patents

Winding machine Download PDF

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Publication number
US2668671A
US2668671A US131538A US13153849A US2668671A US 2668671 A US2668671 A US 2668671A US 131538 A US131538 A US 131538A US 13153849 A US13153849 A US 13153849A US 2668671 A US2668671 A US 2668671A
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Prior art keywords
belt
yarn
traverse
package
packages
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US131538A
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Norman E Klein
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Milliken Research Corp
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Milliken Research Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/02Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28Traversing devices; Package-shaping arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/02Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28Traversing devices; Package-shaping arrangements
    • B65H54/2881Traversing devices with a plurality of guides for winding on a plurality of bobbins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to textile winding machines, more particularly to machines known as Winding Machine and comprises a novel machine of this character that may be efficiently operated at speeds substantially higher than those at which redraw machines heretofore in use have been operated and that winds firm uniform packages.
  • the invention comprises also a novel method of winding 2. bobbin that may be practised on the new machine and a new type of package that may be formed thereon, the package being so wound as to minimize any tendency of the yarn to slough off from the sides thereof.
  • An important feature of the new machine is an endless belt, one edge of which guides the yarn to the take-up bobbins and the contour of which provides the desired traversing action and determines the shape of the completed package.
  • Another feature of the new machine is the vertical mounting of the spindles carrying the take-up bobbins, permitting safe operation of the machine at high rates of spindle rotation.
  • An optional feature of the machine is the means for cyclically varying the rate of travel of the traverse belt which prevents ridges or hilling in the wound package by eliminating tracking.
  • Figs. 1 and 2 are side and plan views, respectively, partly in section, of a vertical redraw frame embodying the invention
  • Fig. 3 is a vertical sectional view taken on the line 33 of Fig. 2;
  • Fig. 4 is a detail view on an enlarged scale showing a belt contoured for winding a tapered package
  • Figs. 4a. and 4b are views illustrating steps in the method of winding a bobbin on the machine of Figs. 1 to 3 when a belt of the contour of Fig. 4 is employed, Fig. la showing the initial layer of yarn on the bobbin and Fig. 4b the completed package;
  • Fig. 5 is a detail view similar to Fig. 4 and showing a belt suitably contoured for winding a cylindrical package and Fig. 6 is a fragmentary view in perspective of a protective shield for the traverse belt, suitable for use with the machine of Figs. 1 to 3.
  • the new redraw frame is mounted on a pair of longitudinal rails 2 interconnected at each end of the frame by an end plate 4.
  • An upright frame member 6 is secured to each end plate 4 and supports at its upper end a second or upper end plate c which in turn by gearing 9,4, shaft 92 being mounted in suitable .tudinal rails l2 supports two spindle rails l0.
  • Also supported by the upright frame members 6 are two longi- A cross bar M which is secured to the rails l2 near one end of the frame, supports an upper bearing l6 for the drive shaft it of the frame, the lower bearing for the shaft being carried by a cross support 28 mounted on the rails 2.
  • Spindles 35 are rotatably mounted in suitable bearings in the spindle rails in and are driven from the pulley 34 by means of an endless belt 38, suitable idler pulleys 40 being mounted on the spindle rails adjacent the spindles to guide the drive belt into engagement with the spindles.
  • a relatively large pulley 42 is mounted on a shaft 44.
  • the shaft 44 is rotatably mounted in a bearing housing 43 supported by a cross plate 48 secured to the longitudinal rails l2.
  • the shaft 44 is driven from the spindle drive shaft 30, and preferably the speed ratio of the shafts M and 3B is cyclically varied by means now to be described.
  • a variable pitch pulley 50 is mounted on the shaft 30 and coupled by a belt 52 to a pulley 54 rotatably mounted on a stub shaft 56.
  • Shaft 56 is carried by a horizontally disposed change gear arm 58 which in turn is mounted on a sleeve 60 concentric with the shaft 44 and fixed to the plate 48.
  • the arm 58 supports a second stub shaft 62 upon which are mounted gears 64 and 66 which mesh, respectively, with a gear 68 on shaft 44 and a gear ID integral with the pulley 54 on stub shaft 56.
  • the pitch of pulley 50 on shaft 30 is cyclically varied by means of a cam 12 which engages a shoe M fixed to a rod 18, the lower end of which bears upon the plate of the variable pitch pulley 50.
  • the rod 18 is supported in a bracket 82 carried by the bearing support 33.
  • a coiled spring 84 about the rod 18 maintains the shoe M in contact with the cam 12.
  • Cam 12 is fixedly mounted on a horizontal shaft 86 which is mounted in bearings carried by the longitudinal rails l2 and carries a gear 88.
  • Gear 88 is driven by a worm gear 90 secured to a horizontal shaft 92 driven from the main shaft I 8 bearings secured to one longitudinal rail I2.
  • shaft 44 is continuously driven from shaft 30 and the ratio of rate of rotation of shaft 44 to that of shaft 3!] is cyclically varied through a small range.
  • a large idler pulley 35' is mounted at the other end of the frame on stub shaft 88' rotatably mounted in a bearing carried by a plate I09, .the plate being so mounted on the rails I2 as to per mit adjustment of its position longitudinally of the frame.
  • the belt I02 the contour of which provides the traversing action of bobbins carried. by the spindles and determines the shape of' the completed package, encompasses the pulleys 42 and 96, being driven by the former and driving. the latter.
  • a disk Hi4 having an annular groove for reception of the lower edge of the traverse belt IE2, is rotatably mounted on a horizontal shaft. LES- carried by one rail I2, and serves to guide and position the. belt asit approaches the pulley d2.
  • a similar guide disk I88 is provided on the other side of the frame for guiding and positioning the belt as it approaches the pulley 96.
  • av longitudinal rod H2 is. supported above the platform IN] by uprights I I4 and the supply packages II 6 are mounted on pegs. H8 secured to the rod H2 and suitably spaced there along.
  • Pigtail guides I 29 are mounted inpairs. on rods I22 carried by the rod IIZ: intermediate the p gs H8. Yarn drawn off over-end from.
  • a supply package passes through the eyes of the associated guides i 20 and thenthrough guides I24 and a tension device I26, both suitably positioned on the platform H9, through a second. guide i2? also mounted on the platform, over the guiding edge of the traverse belt I 92 to one of the bobbins I28 on the spindles 35.
  • tension devices #25 are indicatedinthe draw- L ings: as of theweighted disk. type, but other conventional types of additive: tension devices could be employediif desired.
  • tension devices F28 and associated guides I24 and i2 7 are preferably positioned adjacent the sides of the platform. Hi1, those along one side serving to guide and. tension yarn delivered to bobbins on spindles on the other side of the frame. This arrangement provides, a relatively long free path for the yarn. prior: to its passage over the traverse-belt and, thus minimizes tension variations during traverse;
  • each end of yarn be so guided in. its path to and over the.” contour belt to its respective take-up bobbin that deflections of the pathin the directionlof; belt travel be avoided while vertical shifting of the path, in accordance with the contour of the belt, be permitted;
  • Vertical guiderods I 29 are positioned on the platform III ⁇ adjacent the belt to so guide the yarn to the belt and take-up bobbins.
  • the position of a guide rod F29 with reference to its adjacent bobbinfI28' is important for optimum winding.
  • the rod is so positioned that the yarn path from the rod to an empty bobbin substantially perpendicular tothedirection of travel of the belt.
  • FIG. 6 A convenient arrangement which provides suitable control of the yarn path and at the same time serves to protect the operator of the machine from accidental contact with the rapidly travelling traverse belt I92 is shown in Fig. 6.
  • the belt I02 is enclosed within a shield I38 of sheet steel or the like which is mounted on a series of cross members I32 supported by the upper longitudinal rails I2 of the frame.
  • each spindle position is a vertical slot I34 having rounded edges serving in lieu of the guide rods I29 to guide the yarn and. to prevent horizontal deflection of its path.
  • Guards I 38 are also provided for the terminal pulleys 42 and 96 and these also are preferably constructed so as to be readily removable for change of belt.
  • aseparate spindle brake is provided, at
  • Each brake comprises a.
  • the block M0 is mounted on a. U-shaped plate member I44, which in turn is mounted for limited pivotal motion about the axes. of rods I45 brazed to the under surfacethereof.
  • the rods I46 extend: inwardly from the arms of the u-shaped member I44 and. enter diametral slots in a ring I48 encompassing a spindle, the ring I48 and. rods I46 resting on the spindle. rail l0.
  • a-n. apron is Depending from the legs of each member I44 and preferablyformed integralatherewith.
  • the bobbins I28 rest on shoulders or flanges I52 on the spindles 36- and these shoulders, asbest shown in Fig. 2, are preferably triangular in horizontal section to permit the engagement of the under surfaceof the lower flange ofthe bobbin by the fingers of the operator when dofiing. This construction avoids thenecessity' for handling of the delicate yarn on the bobbin and thus. minimizes damage. or soiling of the" yarn.
  • traversing should be such that the spacing between adjacent turns of the yarn gradually increases from the base of thetapered portion, indicated at a in; Figs. 4a and 4b, toa maximum at the top of the bobbin.
  • the guiding edge of the belt has a constant slope to provide the uniform wind of the cylindrical part of the package. Adjacent the highest and lowest points of the upper edge of the traverse belt, corresponding to the top and bottom of the package, the slope of the trailing edge is abruptlyincreased through a short distance as indicated at I54 and I56 respectively.
  • This abrupt change in curvature prevents billing at the ends of the bobbin by compensating for the delay in transmitting to the point of application of wind on the bobbin the effect of change in direction of traverse occasioned by the distance between the traverse belt and the bobbin.
  • the redraw frame of the invention when provided with a belt of the contour of Fig. 4 will wind packages such as that of Fig. 4b, in which the tapered and cylindrical portions are formed without change in length of traverse.
  • packages such as that of Fig. 4b, in which the tapered and cylindrical portions are formed without change in length of traverse.
  • the resulting package has consequently less tendency to slough off than packages formed by machines which vary the length of traverse or add a traverse action to a builder motion.
  • a belt of the contour-of that shown in Fig. 5 may be employed.
  • the yarn engaging edges have a constant slope except for the short stretches I54 and I56 adjacent the highest and lowest points respectively of the upper edge of the belt; these short stretches, as
  • the bobbins used on the frame should have a length of barrel correlated to the particular traverse belt or, conversely, the traverse belt should be designed with reference to the particular bobbin to be used on the machine.
  • bobbins of the general proportions shown in Fig. 4a having a barrel length of about 5 /2 inches are employed when the package is to have the tapered form shown in Fig. 4b.
  • Such a bobbin forms the subject matter of a co-pending application of the present applicant, Ser. No.
  • the invention provides a method and means for forming substantially any desired form of yarn package and such package due to the fact that it will be formed of successive layers each extending the full length of the package, will have less tendency to slough oif when handled than packages wound with a traverse length less than the full length of the package.
  • a textile winding machine comprising a plurality of substantially vertically disposed rotatable spindles adapted to support bobbins, drive means for said spindles, an endless sheet member having a contour along one edge defining a succession of hills and dales, the difierence betweenthe maximum and minimum widths of the sheet member being substantially equal to the length of the package to be wound on a bobbin,-
  • said sheet member unidirectionally in a fixed closed path adjacent said spindles, support means for yarn supply packages and means for guiding yarn from a supply package to a: bobbin, said guide means being positioned to cause the contoured edge of the sheet member to be engaged by the yarn in its travel to a bobbin whereby the yarn is caused to traverse the bobbin in accordance with the hills and dales of the contoured edge of said sheet member.
  • said means for moving said sheet member includes a pair of rotatable drums encompassed by said sheet member and means for driving one of said drums.
  • A- textile winding machine comprising a, plurality of substantially vertically disposed rotate-- ble spindles each adapted to carry a winding core, support means for yarn supply packages, yarn guide means for leading yarn from a, package to a winding core, means engageable by the yarn in itstravel from. said guide means to a core for causing the yarn to traverse the core during winding thereon, said traverse means comprising an endless sheet member having a contour along one edge defining a series of hills and dales, the difierence between the width of the sheet member at the bottom of a dale and that at the peakof an adjacent hill being substantially equal to the length of package to be wound on a core, the yarn. engaging said contoured edge, and means for rotating said spindles and for moving said sheet member in a fixed path adjacent said spindles.
  • a winding machine of the type wherein a plurality of spindles are rapidly rotated to draw yarn from supply packages for winding on cores carried by the spindles, the combination comprising an endless flexible belt having a contouredv edge positioned for travel of yarn thereover during the windingoperation and means for moving said belt in a direction substantially at right angles to the direction of travel of the yarn in approaching the cores to cause the path of each yarn end to be deflected parallel to the axis of the associated core in accordance with the contour of the belt, said contoured edge comprising a succession of hills and dales, the transverse distance between the narrowest and widest parts of the belt being substantially equal to the axial length of packages to be wound on the cores.
  • a part of the contoured edge of the belt is in the form of a curve increasing in slope to a maximum at the peak of each hill whereby a correspondin length of the packages wound on the cores will be tapered in shape.
  • a traversing means determinative of the. shape of the packages to be wound comprising an endless flexible belt having one: straight edgeand the other edge out inthe form of a; series of hills and dales so that the width. of the belt varies along its length from a minimum at the bottom: of each dale to a maximum at the peak or each-- hill, means for causing unidirectional travel of said belt in a fixed circuitwi-th its straight-edge in a horizontal plane and with one face adjacent the spindles, and yarn guide means positioned.
  • a textile winding machine comprising a plurality of rotatable spindles adapted to support winding. cores, drive means for said spindles, an endless'sheet member having a contour along one edge defining a succession of hills and. dales, the maximum transverse distance between thebottom of a dale and the peak: of a hill being substantially equal to the length of package to be wound on a core, means for moving said sheet member in a fixed pathadjacent said spindles, support means for yarn supply packages and means for guiding yarn from a. supported supply package to a winding core, said guide means being positioned tocause the contoured edge of the sheet member tobe engaged by the yarn. in. its travel to a winding core whereby the yarn is caused: to traverse the winding core in accordance with the hills and dales of the contoured edge of said sheet member.
  • each. package wound on the machine has a constant slope for a portion of its distance and. a gradually increasing slope for the rest of its distance whereby. the shape of each. package wound on the machine is cylindrical for a portion of its length and tapered. for the-remainder of its length NORMAN E. KLEIN.

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  • Winding Filamentary Materials (AREA)

Description

N. E. KLEIN WINDING MACHINE Feb. 9, 1954 3 Sheets-Sheet 1 Filed Dec. 7, 1949 NQRMHN E. 'KLElN BY V @%MZZ ATTORNEY N. E. KLEIN WINDING MACHINE Feb. 9, 1954 3 Sheets-Sheet 2 Filed Dec. 7, 1949 NORMHN E KLEIN aux/v4.
ATTORNEY INVENTOR N. E. KLEIN WINDING MACHINE Feb. 9; 1954 3 Sheets-Sheet Filed Dec. 7, 1949 lNVENTOR NORMQN E. KLE\N W ATTORNEY Patented Feb. 9, 1954 WINDING MACHINE Norman E. Klein, Stamford, Conn., assignor to Deering Milliken Research Trust, Greenwich,
Conn.
Application December 7, 1949, Serial No. 131,538
11 Claims.
The present invention relates to textile winding machines, more particularly to machines known as Winding Machine and comprises a novel machine of this character that may be efficiently operated at speeds substantially higher than those at which redraw machines heretofore in use have been operated and that winds firm uniform packages. The invention comprises also a novel method of winding 2. bobbin that may be practised on the new machine and a new type of package that may be formed thereon, the package being so wound as to minimize any tendency of the yarn to slough off from the sides thereof.
An important feature of the new machine is an endless belt, one edge of which guides the yarn to the take-up bobbins and the contour of which provides the desired traversing action and determines the shape of the completed package.
Another feature of the new machine is the vertical mounting of the spindles carrying the take-up bobbins, permitting safe operation of the machine at high rates of spindle rotation.
An optional feature of the machine is the means for cyclically varying the rate of travel of the traverse belt which prevents ridges or hilling in the wound package by eliminating tracking.
Other features of the invention will become apparent as the description proceeds.
Of the accompanying drawings:
Figs. 1 and 2 are side and plan views, respectively, partly in section, of a vertical redraw frame embodying the invention;
Fig. 3 is a vertical sectional view taken on the line 33 of Fig. 2;
Fig. 4 is a detail view on an enlarged scale showing a belt contoured for winding a tapered package;
Figs. 4a. and 4b are views illustrating steps in the method of winding a bobbin on the machine of Figs. 1 to 3 when a belt of the contour of Fig. 4 is employed, Fig. la showing the initial layer of yarn on the bobbin and Fig. 4b the completed package;
Fig. 5 is a detail view similar to Fig. 4 and showing a belt suitably contoured for winding a cylindrical package and Fig. 6 is a fragmentary view in perspective of a protective shield for the traverse belt, suitable for use with the machine of Figs. 1 to 3.
As shown in Figs. 1 to 3, the new redraw frame is mounted on a pair of longitudinal rails 2 interconnected at each end of the frame by an end plate 4. An upright frame member 6 is secured to each end plate 4 and supports at its upper end a second or upper end plate c which in turn by gearing 9,4, shaft 92 being mounted in suitable .tudinal rails l2 supports two spindle rails l0. Also supported by the upright frame members 6 are two longi- A cross bar M which is secured to the rails l2 near one end of the frame, supports an upper bearing l6 for the drive shaft it of the frame, the lower bearing for the shaft being carried by a cross support 28 mounted on the rails 2.
Fixedly secured to the drive shaft I8 are two pulleys, 22 and 24, the former being adapted to be coupled by a belt to a suitable drive motor (not shown), and the latter being coupled by means of a belt 25 to a pulley 28 fixed on the lower end of a spindle drive shaft 30. Shaft 30, which is suitably mounted in bearings carried by upper and lower supports 32 and 33 secured, respectively, to the spindle rail l0 and plate 8, carries at its upper end a spindle drive pulley 3Q. Spindles 35 are rotatably mounted in suitable bearings in the spindle rails in and are driven from the pulley 34 by means of an endless belt 38, suitable idler pulleys 40 being mounted on the spindle rails adjacent the spindles to guide the drive belt into engagement with the spindles.
At one end of the frame a relatively large pulley 42 is mounted on a shaft 44. The shaft 44 is rotatably mounted in a bearing housing 43 supported by a cross plate 48 secured to the longitudinal rails l2. The shaft 44 is driven from the spindle drive shaft 30, and preferably the speed ratio of the shafts M and 3B is cyclically varied by means now to be described. A variable pitch pulley 50 is mounted on the shaft 30 and coupled by a belt 52 to a pulley 54 rotatably mounted on a stub shaft 56. Shaft 56 is carried by a horizontally disposed change gear arm 58 which in turn is mounted on a sleeve 60 concentric with the shaft 44 and fixed to the plate 48. The arm 58 supports a second stub shaft 62 upon which are mounted gears 64 and 66 which mesh, respectively, with a gear 68 on shaft 44 and a gear ID integral with the pulley 54 on stub shaft 56. The pitch of pulley 50 on shaft 30 is cyclically varied by means of a cam 12 which engages a shoe M fixed to a rod 18, the lower end of which bears upon the plate of the variable pitch pulley 50. The rod 18 is supported in a bracket 82 carried by the bearing support 33. A coiled spring 84 about the rod 18 maintains the shoe M in contact with the cam 12. Cam 12 is fixedly mounted on a horizontal shaft 86 which is mounted in bearings carried by the longitudinal rails l2 and carries a gear 88. Gear 88 is driven by a worm gear 90 secured to a horizontal shaft 92 driven from the main shaft I 8 bearings secured to one longitudinal rail I2. Thus during operation of the frame, shaft 44 is continuously driven from shaft 30 and the ratio of rate of rotation of shaft 44 to that of shaft 3!] is cyclically varied through a small range.
A large idler pulley 35' is mounted at the other end of the frame on stub shaft 88' rotatably mounted in a bearing carried by a plate I09, .the plate being so mounted on the rails I2 as to per mit adjustment of its position longitudinally of the frame. The belt I02, the contour of which provides the traversing action of bobbins carried. by the spindles and determines the shape of' the completed package, encompasses the pulleys 42 and 96, being driven by the former and driving. the latter. A disk Hi4 having an annular groove for reception of the lower edge of the traverse belt IE2, is rotatably mounted on a horizontal shaft. LES- carried by one rail I2, and serves to guide and position the. belt asit approaches the pulley d2. A similar guide disk I88 is provided on the other side of the frame for guiding and positioning the belt as it approaches the pulley 96.
Supported above the rails. I2, as by struts H39. (see Fig. 3) is a platform IIfl which extends the. length of the frame between the pulleys 42 and 96 and mounted on this platform are yarn guide and tensioning devicesand. a suitable creel for the supply packages of the yarn tobe wound. In. the particular embodiment of the invention illustrated the drawings, av longitudinal rod H2 is. supported above the platform IN] by uprights I I4 and the supply packages II 6 are mounted on pegs. H8 secured to the rod H2 and suitably spaced there along. Pigtail guides I 29 are mounted inpairs. on rods I22 carried by the rod IIZ: intermediate the p gs H8. Yarn drawn off over-end from. a supply package passes through the eyes of the associated guides i 20 and thenthrough guides I24 and a tension device I26, both suitably positioned on the platform H9, through a second. guide i2? also mounted on the platform, over the guiding edge of the traverse belt I 92 to one of the bobbins I28 on the spindles 35.
The'tension devices. #25 are indicatedinthe draw- L ings: as of theweighted disk. type, but other conventional types of additive: tension devices could be employediif desired.
The: tension devices F28 and associated guides I24 and i2 7 are preferably positioned adjacent the sides of the platform. Hi1, those along one side serving to guide and. tension yarn delivered to bobbins on spindles on the other side of the frame. This arrangement provides, a relatively long free path for the yarn. prior: to its passage over the traverse-belt and, thus minimizes tension variations during traverse;
It is important that each end of yarn be so guided in. its path to and over the." contour belt to its respective take-up bobbin that deflections of the pathin the directionlof; belt travel be avoided while vertical shifting of the path, in accordance with the contour of the belt, be permitted; Vertical guiderods I 29=are positioned on the platform III} adjacent the belt to so guide the yarn to the belt and take-up bobbins. The position of a guide rod F29 with reference to its adjacent bobbinfI28' is important for optimum winding. Preferably, as indicated. in the drawings, the rod is so positioned that the yarn path from the rod to an empty bobbin substantially perpendicular tothedirection of travel of the belt.
A convenient arrangement which provides suitable control of the yarn path and at the same time serves to protect the operator of the machine from accidental contact with the rapidly travelling traverse belt I92 is shown in Fig. 6. In this arrangement the belt I02 is enclosed within a shield I38 of sheet steel or the like which is mounted on a series of cross members I32 supported by the upper longitudinal rails I2 of the frame. In the shield adjacent. each spindle position is a vertical slot I34 having rounded edges serving in lieu of the guide rods I29 to guide the yarn and. to prevent horizontal deflection of its path. Preferably the inner and outer walls of the shield it!) are connected together near their upper edges between the slots I34 by removable spacers I36 to permit ready substitution of a belt of different contour, Guards I 38 are also provided for the terminal pulleys 42 and 96 and these also are preferably constructed so as to be readily removable for change of belt.
In order to permit dofiing and. replenishing of individual bobbins without shutdown of the frame; aseparate spindle brake is provided, at
each spindle position. Each brake comprises a.
block hill of friction material having a concave surface: adapted. to be brought into contact with the flange Hi2 oi the spindle whorl to brake the spindle. The block M0 is mounted on a. U-shaped plate member I44, which in turn is mounted for limited pivotal motion about the axes. of rods I45 brazed to the under surfacethereof. The rods I46 extend: inwardly from the arms of the u-shaped member I44 and. enter diametral slots in a ring I48 encompassing a spindle, the ring I48 and. rods I46 resting on the spindle. rail l0. Depending from the legs of each member I44 and preferablyformed integralatherewith, isa-n. apron. I58 for engagement by the knee of an operator,. pressure on the apron I50 rocking the member I44 aboutv the axes of. the rods I46 and bringing the braking surface of block. I40 into engagement with flange: M2. The bobbins I28 rest on shoulders or flanges I52 on the spindles 36- and these shoulders, asbest shown in Fig. 2, are preferably triangular in horizontal section to permit the engagement of the under surfaceof the lower flange ofthe bobbin by the fingers of the operator when dofiing. This construction avoids thenecessity' for handling of the delicate yarn on the bobbin and thus. minimizes damage. or soiling of the" yarn.
As heretofore indicated the contour of the traverse belt I92 determines the shape ofthe completed package. Fig. 4a illustrates a suitable contour of belt for use in winding a package of the shape illustrated in Fig. 4b. To wind. such package the upper portion thereof is traversed more. rapidly than the lower portion. Also, toprovide the proper taper to the package, the
traversing should be such that the spacing between adjacent turns of the yarn gradually increases from the base of thetapered portion, indicated at a in; Figs. 4a and 4b, toa maximum at the top of the bobbin. Below the line a the guiding edge of the belt has a constant slope to provide the uniform wind of the cylindrical part of the package. Adjacent the highest and lowest points of the upper edge of the traverse belt, corresponding to the top and bottom of the package, the slope of the trailing edge is abruptlyincreased through a short distance as indicated at I54 and I56 respectively. This abrupt change in curvature prevents billing at the ends of the bobbin by compensating for the delay in transmitting to the point of application of wind on the bobbin the effect of change in direction of traverse occasioned by the distance between the traverse belt and the bobbin.
From the foregoing description it will be apparent that the redraw frame of the invention when provided with a belt of the contour of Fig. 4 will wind packages such as that of Fig. 4b, in which the tapered and cylindrical portions are formed without change in length of traverse. Thus except at the upper and lower ends of the bobbin, there is no change in direction of traverse and the resulting package has consequently less tendency to slough off than packages formed by machines which vary the length of traverse or add a traverse action to a builder motion. Due to the fast wind at the upper end of the bobbin resulting from the abrupt change of slope at the peaks of the contoured edge of the traverse belt, the packages are formed with a wide angle of wind at the tapered ends. Consequently creasing-in or trapping of yarn under the upper bobbin fiange is avoided and drawing oif of yarn over-end from the packages is facilitated.
When it is desired to wind cylindrical packages, a belt of the contour-of that shown in Fig. 5 may be employed. In this instance the yarn engaging edges have a constant slope except for the short stretches I54 and I56 adjacent the highest and lowest points respectively of the upper edge of the belt; these short stretches, as
in the case of belt of Fig. 4, have a greater slope along the trailing edge to insure against hilling at the ends of the bobbin.
The operation of the above described mac ine will be readily understood from the foregoing description. When the frame is in operation the drive shaft which is driven from the frame motor (not shown) drives the spindle drive shaft 3% through the belt 26 and pulleys 24 and 2B and the spindle drive shaft, through belt 38 and pulley 34 drives the spindles and, through the variable pitch pulley 50, belt 52 and the gear train, drives the shaft of drum 42. Rotation of drum 42 causes unidirectional travel of the traverse belt I02 past each spindle which in turn causes the yarn, drawn from the creel by the rotating spindles, to traverse the spindles in accordance with the contour thereof. Drive shaft 18, through shaft 92, gears 88 and 98 rotates cam 72 which, through shoe it causes cyclical variations in the pitch of pulley 50 and thereby varies the ratio between the rate of rotation of the spindles and the rate of travel of the traverse belt. This cyclical variation is small, preferably of the order of about five percent. The shape of the completed package will depend, as heretofore described in connection with Figs. 4 and 5, upon the contour of the particular traverse belt used in the machine, belts with contours of uniform slope building cylindrical packages, and those with contours concave upward building tapered packages.
As the vertical distance between the highest and lowest points of the contoured edge of the belt determines the axial length of package to be wound, the bobbins used on the frame should have a length of barrel correlated to the particular traverse belt or, conversely, the traverse belt should be designed with reference to the particular bobbin to be used on the machine. Preferably, bobbins of the general proportions shown in Fig. 4a having a barrel length of about 5 /2 inches are employed when the package is to have the tapered form shown in Fig. 4b. Such a bobbin forms the subject matter of a co-pending application of the present applicant, Ser. No.
122,626, filed October 21, 1949, now abandoned. When a bobbin of the proportions illustrated in Fig. 4a and of the size specifically described in said application is wound with 100-40-3 acetate (100 ends of 40 denier per filament twisted three times per inch) using a traverse belt contoured as in Fig. 4, a package is formed that weighs about one and one tenth pound and that is suitable for use as the yarn supply in a two-for-one twister. The redraw frame of the present invention can wind such package in substantially less time than conventional redraw frames in which the packages are formed on horizontally disposed axes can wind packages of lesser weight. For example, 1%.; pound packages have been wound on the new machine in one and one quarter of an hour, using a spindle speed of 4000 R. P. M. and a traverse belt speed such that the rate of traverse was 54 cycles per minute, the particular belt having a peak to peak length measured along the belt of four feet and moving at an average speed of about 220 feet per minute. This is a substantial improvement over redraw frames now in use which have a rate of spindle rotation of about 900 R. P. M. or less. Such machines require about five hours to wind a pound package.
The invention has now been described with reference to one specific embodiment thereof. Obviously various changes in the construction of the specific redraw frame illustrated in the drawing could be made and parts could be added or omitted without departing from the spirit of the invention. For example although in the particular machine illustrated in the drawings, yarn is delivered over the upper contoured edge of a traverse belt which is frictionally driven by a rotating drum, obviously the lower edge rather than the upper edge of the belt could be contoured and the yarn fed thereunder, and chain or other drive means for the traverse belt could be employed if desired. Various shapes of packages other than those specifically described could be produced by suitably varying the contour of the belt. For example, if the contour near the bottom of the troughs or dales is curved so as to accelerate the traverse at the lower end of the bobbin and the contour near the peaks is also so curved, packages roundly tapering at both ends will be formed, with or without a central cylindrical portion, depending upon whether or not an intermediate section of the contour has a constant slope. On the other hand, if the contour of the belt were such as to provide uniform rate of traverse near the ends of the barrel of a bobbin with accelerated and decelerated traverse over the central portion, packages with cylindrical end portions and restricted central portions would be formed. Thus the invention provides a method and means for forming substantially any desired form of yarn package and such package due to the fact that it will be formed of successive layers each extending the full length of the package, will have less tendency to slough oif when handled than packages wound with a traverse length less than the full length of the package.
The following is claimed:
1. A textile winding machine comprising a plurality of substantially vertically disposed rotatable spindles adapted to support bobbins, drive means for said spindles, an endless sheet member having a contour along one edge defining a succession of hills and dales, the difierence betweenthe maximum and minimum widths of the sheet member being substantially equal to the length of the package to be wound on a bobbin,-
means for moving. said sheet member unidirectionally in a fixed closed path adjacent said spindles, support means for yarn supply packages and means for guiding yarn from a supply package to a: bobbin, said guide means being positioned to cause the contoured edge of the sheet member to be engaged by the yarn in its travel to a bobbin whereby the yarn is caused to traverse the bobbin in accordance with the hills and dales of the contoured edge of said sheet member.
2'. The winding machine according to claim 1 wherein said means for moving said sheet member includes a pair of rotatable drums encompassed by said sheet member and means for driving one of said drums.
3. The winding machine according to claim 2 wherein saidmeans for driving one of said drums includesmeans for cyclically varying the rate of rotation-thereof.
4-. The winding machine according to. claim. 1 including means preventing displacement of the yarn.- in the direction of travel of the sheet memher.
5. A- textile winding machine comprising a, plurality of substantially vertically disposed rotate-- ble spindles each adapted to carry a winding core, support means for yarn supply packages, yarn guide means for leading yarn from a, package to a winding core, means engageable by the yarn in itstravel from. said guide means to a core for causing the yarn to traverse the core during winding thereon, said traverse means comprising an endless sheet member having a contour along one edge defining a series of hills and dales, the difierence between the width of the sheet member at the bottom of a dale and that at the peakof an adjacent hill being substantially equal to the length of package to be wound on a core, the yarn. engaging said contoured edge, and means for rotating said spindles and for moving said sheet member in a fixed path adjacent said spindles.
6; In a. winding machine of the type wherein a plurality of spindles are rapidly rotated to draw yarn from supply packages for winding on cores carried by the spindles, the combination comprising an endless flexible belt having a contouredv edge positioned for travel of yarn thereover during the windingoperation and means for moving said belt in a direction substantially at right angles to the direction of travel of the yarn in approaching the cores to cause the path of each yarn end to be deflected parallel to the axis of the associated core in accordance with the contour of the belt, said contoured edge comprising a succession of hills and dales, the transverse distance between the narrowest and widest parts of the belt being substantially equal to the axial length of packages to be wound on the cores.
7. The combination according to claim 6 wherein at least a part of the contoured edge of the belt between the base of a dale and the peak of the adjacent hill is straight whereby a corresponding length of the packages wound on the cores will be cylindrical in shame.
8. The combination according to claim 6 wherein a part of the contoured edge of the belt is in the form of a curve increasing in slope to a maximum at the peak of each hill whereby a correspondin length of the packages wound on the cores will be tapered in shape.
9. The combination, with a winding machine of the type wherein ends of yarnare drawn from.
supply packages. by rotation of vertical spindles carrying cores upon which the yarn is wound, of a traversing means determinative of the. shape of the packages to be wound comprising an endless flexible belt having one: straight edgeand the other edge out inthe form of a; series of hills and dales so that the width. of the belt varies along its length from a minimum at the bottom: of each dale to a maximum at the peak or each-- hill, means for causing unidirectional travel of said belt in a fixed circuitwi-th its straight-edge in a horizontal plane and with one face adjacent the spindles, and yarn guide means positioned. to causeyarnin traveling fromthe supply packages to the winding cores to engage said con.- toured edge of the belt for traverse thereby oiv the cores, the contour of said belt between the bottom of a dale and the next succeeding peak having. a constant slope for a portion of. its distance and a gradually increasing slope for therest of its distance whereby the shape of each. package wound on the machine is, cylindrical for a portion of its length and. tapered for the remainder of its. length.
10. A textile winding machine comprising a plurality of rotatable spindles adapted to support winding. cores, drive means for said spindles, an endless'sheet member having a contour along one edge defining a succession of hills and. dales, the maximum transverse distance between thebottom of a dale and the peak: of a hill being substantially equal to the length of package to be wound on a core, means for moving said sheet member in a fixed pathadjacent said spindles, support means for yarn supply packages and means for guiding yarn from a. supported supply package to a winding core, said guide means being positioned tocause the contoured edge of the sheet member tobe engaged by the yarn. in. its travel to a winding core whereby the yarn is caused: to traverse the winding core in accordance with the hills and dales of the contoured edge of said sheet member.
11. The textile'winding machine according to claim 10 wherein the contour of'said sheet mem-- ber between the bottom of a dale and the next:
succeeding peak has a constant slope for a portion of its distance and. a gradually increasing slope for the rest of its distance whereby. the shape of each. package wound on the machine is cylindrical for a portion of its length and tapered. for the-remainder of its length NORMAN E. KLEIN.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 661,209 may Nov. 6, 1900 1,078,574 Colman Nov. 11, 1913 1,343,481 Schaufelberger June 15, 1920' 1,357,434 Anderson Nov; 2, 1920 1,647,535 McKea-n Nov. 1, 1927 2,091,902 Auten Aug. 31, 1937 2,131,470 Bowden' Sept. 27', 1938 2,210,839 Marsh Aug. 6, 1940 2,301,712 Seem" Nov. 10, 1942 2,326,307 Peterson Aug. 10, 1943 2,345,601 Hickes Apr. 4, 1944 2,475,895 Hill- July 12, 1949 FOREIGN PATENTS Number Country Date 137 Great Britain Jan 20, 1858- 991 Great Britain Apr. 5, 1870' 423,653 Great Britam Feb. 4, 1935:
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1105781B (en) * 1955-06-14 1961-04-27 Algemene Kunstzijde Unie Nv Winding machine with several vertical winding spindles
DE1128336B (en) * 1959-02-19 1962-04-19 Franz Mueller Maschinenfabrik Winding machine, in particular cross-winding machine
EP0424573A2 (en) * 1989-10-25 1991-05-02 Carlo Menegatto Yarn winding machine

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Publication number Priority date Publication date Assignee Title
US661209A (en) * 1900-02-26 1900-11-06 Joseph Duffy Silk-doubler.
US1078574A (en) * 1907-12-26 1913-11-11 Barber Colman Co Spooler.
US1343481A (en) * 1917-01-19 1920-06-15 Schaufelberger Albert Circular weft-winding machine
US1357434A (en) * 1920-04-23 1920-11-02 Varley Duple Magnet Company Winding-machine
US1647535A (en) * 1926-11-02 1927-11-01 Foster Machine Co Wound package and method of producing the same
GB423658A (en) * 1933-05-02 1935-02-04 Herbert Holt Improvements in machines and mechanism for winding yarns or threads or filaments
US2091902A (en) * 1935-02-18 1937-08-31 Universal Winding Co Winding machine
US2131470A (en) * 1934-11-28 1938-09-27 Bowden Walter Henry Yarn winding machine
US2210839A (en) * 1938-11-09 1940-08-06 Saco Lowell Shops Thread package
US2301712A (en) * 1939-04-06 1942-11-10 Warren A Seem Yarn winding machine
US2326307A (en) * 1942-01-31 1943-08-10 Barber Colman Co Yarn winding mechanism
US2345601A (en) * 1941-01-15 1944-04-04 Du Pont Yarn winding
US2475895A (en) * 1945-07-12 1949-07-12 Textile Appliance Corp Winding machine

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US661209A (en) * 1900-02-26 1900-11-06 Joseph Duffy Silk-doubler.
US1078574A (en) * 1907-12-26 1913-11-11 Barber Colman Co Spooler.
US1343481A (en) * 1917-01-19 1920-06-15 Schaufelberger Albert Circular weft-winding machine
US1357434A (en) * 1920-04-23 1920-11-02 Varley Duple Magnet Company Winding-machine
US1647535A (en) * 1926-11-02 1927-11-01 Foster Machine Co Wound package and method of producing the same
GB423658A (en) * 1933-05-02 1935-02-04 Herbert Holt Improvements in machines and mechanism for winding yarns or threads or filaments
US2131470A (en) * 1934-11-28 1938-09-27 Bowden Walter Henry Yarn winding machine
US2091902A (en) * 1935-02-18 1937-08-31 Universal Winding Co Winding machine
US2210839A (en) * 1938-11-09 1940-08-06 Saco Lowell Shops Thread package
US2301712A (en) * 1939-04-06 1942-11-10 Warren A Seem Yarn winding machine
US2345601A (en) * 1941-01-15 1944-04-04 Du Pont Yarn winding
US2326307A (en) * 1942-01-31 1943-08-10 Barber Colman Co Yarn winding mechanism
US2475895A (en) * 1945-07-12 1949-07-12 Textile Appliance Corp Winding machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1105781B (en) * 1955-06-14 1961-04-27 Algemene Kunstzijde Unie Nv Winding machine with several vertical winding spindles
DE1128336B (en) * 1959-02-19 1962-04-19 Franz Mueller Maschinenfabrik Winding machine, in particular cross-winding machine
EP0424573A2 (en) * 1989-10-25 1991-05-02 Carlo Menegatto Yarn winding machine
EP0424573A3 (en) * 1989-10-25 1991-10-30 Carlo Menegatto Yarn winding machine

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