US3266741A - Method and apparatus for winding yarn - Google Patents

Method and apparatus for winding yarn Download PDF

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Publication number
US3266741A
US3266741A US360303A US36030364A US3266741A US 3266741 A US3266741 A US 3266741A US 360303 A US360303 A US 360303A US 36030364 A US36030364 A US 36030364A US 3266741 A US3266741 A US 3266741A
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US
United States
Prior art keywords
yarn
package
traversing
groove
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US360303A
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English (en)
Inventor
Ferrier Duncan Cameron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Nylon Spinners Ltd
Original Assignee
British Nylon Spinners Ltd
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Filing date
Publication date
Application filed by British Nylon Spinners Ltd filed Critical British Nylon Spinners Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • B65H54/46—Package drive drums
    • B65H54/48—Grooved drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to improvements in winding yarn onto a package and is particularly directed to yarn winding in which the yarn during winding onto a package is traversed across the package by means of grooved traverse rolls, and to apparatus therefor.
  • traversing is frequently effected by reciprocatory guides mounted on a traverse bar.
  • the traverse bar is, however, subjected to very high strains during the reversals of direction of traverse which often result in the bar fracturing.
  • the speed at which a yarn can be wound onto a package is limited by the strains imposed on the traverse bar.
  • Yarns may also be traversed by means of rotary guides which do not suffer from the disadvantage of the aforementioned reciprocatory guides.
  • the rotary guides normally comprise a single rotatable cylindrical roll having an endless groove or grooves in thelongitudinal surface thereof.
  • a single groove roll in which the groove extends from one end of the roll to the other and back again without intersecting with itself
  • a multigroove roll in which the return ⁇ portion of the groove is superimposed on the forward portion so that there are one or more intersections of the two portions between their ends.
  • the yarn is engaged in the groove and is traversed to and fro longitudinally of the package as the roll rotates.
  • Each of the aforementioned rolls has certain disadvantages however.
  • An equivalent multigroove roll is much smaller, being virtually a compressed form of the single groove roll, and is therefore much more desirable as a piece of equipment.
  • Difiiculties experienced with this type are related to the high tension which has to be applied to the yarn in order to ensure that it remains in the correct groove during traversing. The higher the speed the greater is the applied tension required, thus speed of winding is limited by the tension since excessively high tensions are likely to cause permanent damage to the yarn.
  • This apparatus comprises, in combination, two intergeared parallel rollers spaced a short distance apart the yarn package being driven by one roller which has in the periphery thereof a single helical groove which extends sufliciently to give the yarn the full length of traverse desired and turns back for a short distance at both reversals and also in one direction of traverse between such reversals.
  • the other roller has a spiral groove in the surface thereof which serves only to traverse the yarn between the reversals in the opposite direction of traverse.
  • the grooves For winding yarn on conical packages the grooves have a constantly increasing pitch from end to end of the rollers, both in the same direction, to give the necessary accelerated traverse towards one end of the package.
  • the yarn winding machine may be provided with a retarding means capable of being brought into intermittent contact with the yarn package to cause variations in the speed of the yarn package.
  • a retarding means capable of being brought into intermittent contact with the yarn package to cause variations in the speed of the yarn package.
  • the yarn is passed between two driven intergeared parallel, grooved rollers spaced apart from the yarn package which is separately driven.
  • the two rollers are spaced a small distance apart and the yarn passing therebetween is traversed across the package in one direction by the groove in one roller and in the opposite direction by the groove in the second roller.
  • the yarn is in continuous contact with one roller only, being either in the groove contained in the surface of that roller or running on the peripheral surface thereof.
  • the present invention provides a method for winding a yarn onto a driven yarn package wherein the yarn during winding is traversed across the yarn package by grooves contained in the peripheral surfaces of two driven contra-rotating axially parallel rolls spaced apart from each other and from the yarn package, the groove in the roll laying the yarn on the package at both reversals and in one direction of traverse and the groove in the other roll laying the yarn on the package in the opposite direction of traverse only, the yarn passing between the rolls in its path to yarn package and in contact with the peripheral surface of the first mentioned roll whilst being traversed across the yarn by the groove in the second mentioned roll.
  • the yarn is laid initially on a roller driving the yarn package by frictional contact therewith and then offset directly onto the said yarn package.
  • the effectiveness of a yarn traverse mechanism is optimised when the displacement of the point of lay of the yarn at the package is equal to the displacement of the yarn path at the traverse. This is, however, an ideal situation and in practice the closest approximation to it occurs when the effective length of yarn free path between the traverse and the point of lay at the package is minimal.
  • advantage is taken of the high resistance of the drive roll to relative motion between the drive roll and the yarn in contact with it to reach a state as near the ideal as possible.
  • the effective length of yarn free path is the distance between the traversing rolls and the point to which the yarn is laid onto the drive roll, since from the drive roll the yarn is offset directly onto the yarn package with negligible movement relative to the drive roll.
  • the invention also provides an apparatus for carrying out the winding of a yarn onto a driven yam package.
  • the apparatus comprises two driven traverse rolls which are rotated in opposed directions and which are spaced apart from each other and from a separately driven yarn package.
  • One of the traversing rolls contains a single main helical groove of constant pitch in its peripheral surface and the groove is turned back a short distance at each end to form the beginning and the end portions of the helical groove.
  • the turned back portions of the groove are of insufi'icient length to intersect the main groove and the second of the traversing rolls contains in its periphery a single helical groove in the same sense and pitch as the main groove in the first mentioned roll.
  • the yarn package is peripherally driven by a fixed driven roller, rotating in the direction of yarn travel, making frictional contact with the said yarn package, said roller being mounted in close relationship to the traversing rolls and extending across the yarn path to cause a yarn being traversed by the traversing rolls to make contact with a portion of the surface thereof and to be laid thereupon before being wound on to the yarn package.
  • the position of the yarn package driving roller in relation to the traversing rolls and the yarn package is such that it constrains a yarn being traversed by the roll which reverses the direction of traverse to move out of contact with the other traversing roll.
  • the helical groove in the traversing roll which reverses the direction of yarn traverse is preferably deeper than the groove in other traversing roll.
  • the helical groove in the traversing roll which reverses the direction of yarn traverse has a width of 0.020" to 0.030" and has an expanded lead-in end portion.
  • the other traversing roll has a portion around the circumference of the roll at the lead-in side machined to the depth of the groove, and the groove at the point where it joins said machined portion is expanded to provide a lead-in tip portion.
  • the width of the groove in the last mentioned roll is ,not critical and it may, for example, be as much as 0.375".
  • FIGURE 1 is a cross-sectional view of the apparatus of this invention showing the yarn path through the apparatus for each direction of traverse;
  • FIGURE 2 is a development of the front and lower traversing roller of FIGURE 1 which serves to lay the yarn on the package in one direction of traverse and at both reversals;
  • FIGURE 3 is a development of the rearmost and upper traversing roller of FIGURE 1, the groove in which serves to lay the yarn on the package between reversals in the opposite direction of traverse.
  • FIGURES 4 and 5 are developments of preferred forms of the front and rearmost traversing rollers respectively.
  • yarn package 1 is mounted on a cylindrical container 1 of 4 /2 inches in diameter secured to a freely rotatable shaft 3 mounted on a swinging arm 4. It is spring urged against a drive roll 5 so as to be in driving contact therewith, the swinging arm 4 permitting the outward movement of the yarn package 1 as its diameter increases owing to yarn being wound on.
  • Grooved front and rear traversing rollers 6 and 7 each being 2 /2 inches in diameter having peripheral grooves 10 and 11 are mounted on parallel shafts 8 and 9 which are geared together such that the rollers revolve in opposite directions.
  • a and A show the paths the yarn takes as it is being traversed by rolls 6 and 7 respectively, in each instance the yarn being laid on the drive roll 5 before being wound onto the yarn package 1.
  • FIGURE 2 there is shown a development of the front traversing roller 6 containing a deep groove 10, deep and 0.125" wide which extends almost across the full length of the roller in the form of a right hand helix having a pitch of 1.25 inches.
  • the end portions 12 and 13 of the groove 10 turn back for a short distance to start a left hand helix having the same pitch as the right hand helix.
  • the length of the said end portions 12 and 13 are such that they each subtend an angle of at the centre of the roll.
  • FIGURE 3 there is shown a development of the rear traversing roller 7 containing a shallow groove 11, 0.125" deep and 0.125" wide which extends across the full length of the roller in the form of a right hand helix having the same pitch as groove 10 in the roller 6.
  • rollers 6 and 7 are spaced a small distance apart and near to the yarn package driving roll as possible, their position relative to each other being so arranged that when the yarn is traversed by the deep groove in roller 6, path A, it is in contact with that roller only but when it is traversed by the shallow groove in roller 7, path A, it is also in contact with the peripheral surface of roll 6, around which it describes an are before being laid initially on the drive roll 5 and thence offset or printed directly onto the package 1.
  • the yarn is traversed in one direction across the package by the groove of roll 6, which also reverses the direction of traverse at both ends and is traversed in the other direction between reversals by the groove in roll 7.
  • traversing rollers 6 and 7 are replaced by rollers and 21, developments of which are shown in FIGURES 4 and 5 respectively.
  • the front traversing roller 20 contains a groove 22 which is 0.3125" deep and 0.020" wide extending across the roller in the form of a right hand helix having a pitch of 1.25.
  • the end portions 23 and 24 of the groove 22 turn back for a short distance in the manner of roll 6 described in FIGURE 2.
  • the tip 25 of the end portion 23 of groove 22 with which the yarn first makes contact on being transferred from the rear roller, is expanded to provide a lead into the groove for the yarn.
  • the rear traversing roller 21 contains a groove 26 which is 0.125" deep and 0.125 wide extending across all but an end portion 27 of the roller in the form of a right hand helix.
  • the end portion 27 is machined down to a depth of 0.125", i.e. the depth of the groove 26 and the end portion 25 of the groove where it joins the end portion 27 of the roller is expanded slightly to form a lead for the yarn.
  • the width of the end portion 27 is controlled by the length of the turned back portion 24 of groove 22 in roll 20, it should be wide enough to just catch the yarn as it is released from the said turned-back portion of the roll 20.
  • the rolls are employed in the same manner as de scribed with reference to FIGURE 1.
  • the narrower groove 22 in roll 20 improves the reversal of the yarn traverse and allows the yarn to move readily to pass over it when being traversed by the other roller, reducing still further the tendency of the yarn to drop in to groove 20 when being so traversed.
  • the provision of the lead in portions to the grooves and of the machined portion of roll 21 gives an improved transfer of yarn from one roll to the other. As a result of these improvements faster yarn winding speeds may be obtained with this preferred embodiment.
  • a method for winding yarn onto a driven yarn package comprising the steps of: taking a yarn from a supply and passing the yarn between first and second traversing rolls which are spaced from one another and from the yarn package, each of said rolls having a groove in its peripheral surface for guiding the yarn for winding along said yarn package, laying the yarn on the yarn package in a first traversing direction and at both reversals of traversing directions by a contact of the yarn in a guiding groove of only the first traversing roll while maintaining the yarn completely out of contact with the second traversing roll, shifting the yarn to a groove in the second traversing roll when said first direction of traverse is completed, and laying the yarn on the yarn package in an opposite traversing direction by a contact of the yarn in the guiding groove of the second traversing roll and with a peripheral surface of the first traversing roll, whereby frictional contact of the yarn with said traversing rolls is substantially reduced for a more rapid winding of the yarn on a package.
  • Apparatus for winding a yarn onto a yarn package comprising:
  • first and second traversing rolls spaced from one another and driven to rotate in opposite directions to one another for traversing a yarn which extends from a supply in a path passing between said traversing rolls for delivery to a yarn package
  • said first traversing roll having a single main helical groove of a con stant pitch in its peripheral surface with the ends of said main helical groove being turned back to form beginning and end portions of a helical groove having a pitch in the opposite sense of the main helical groove but with said end portions not intersecting said main helical groove
  • said main helical groove of said first traversing roll functioning to traverse said yarn in a first direction relative to a yarn package while maintaining said yarn out of contact with the second traversing roll
  • said second traversing roll having in its peripheral surface a single helical groove in the same sense and pitch as the main helical groove of the first traversing roll, said helical groove of said second traversing roll functioning to traverse said yarn in a direction opposite to the traversing direction of said first traversing roll, and
  • said yarn package spaced from said first and second traversing rolls for receiving the yarn being moved between said traversing rolls, said yarn package being driven by a driving roll which is spaced from the first and second traversing rolls and interposed between said traversing rolls and said yarn package for driving the yarn package by frictional contact there-- with, said driving roll further being positioned to present a yarn engaging surface which biases the yarn being moved between said first and second traversing rolls and which maintains the yarn in a path which is out of contact with said second traversing roll during said first traversing direction and which maintains said yarn within the helical groove of the second roll and in contact with the surface only of said first traversing roll during said second traversing direction, whereby frictional contact of the yarn with the traversing rolls is substantially reduced for a more rapid winding of the yarn onto the yarn package.

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  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Winding Filamentary Materials (AREA)
  • Adornments (AREA)
US360303A 1963-04-20 1964-04-16 Method and apparatus for winding yarn Expired - Lifetime US3266741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15684/63A GB1014868A (en) 1963-04-20 1963-04-20 Improvements in or relating to yarn winding machines

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US3266741A true US3266741A (en) 1966-08-16

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US360303A Expired - Lifetime US3266741A (en) 1963-04-20 1964-04-16 Method and apparatus for winding yarn

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US (1) US3266741A (de)
CH (1) CH435071A (de)
ES (1) ES298949A1 (de)
GB (1) GB1014868A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937420A (en) * 1971-10-29 1976-02-10 Galis Alex J Level wind device
US20200017338A1 (en) * 2018-07-12 2020-01-16 Hall Labs, Llc Dual-screw line guide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374220A (en) 1968-09-18 1983-02-15 Raychem Corporation Imide flame retardants and compositions containing them
US4535170A (en) * 1968-09-18 1985-08-13 Raychem Corporation Flame retardants and compositions containing them

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419003A (en) * 1944-07-24 1947-04-15 Arundel Coulthard & Co Ltd Yarn winding machine
DE891517C (de) * 1941-08-09 1953-09-28 Carl Hamel Ag Fadenfuehrungstrommel fuer Kreuzspulmaschinen
US3092339A (en) * 1960-11-30 1963-06-04 Du Pont Yarn windup

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891517C (de) * 1941-08-09 1953-09-28 Carl Hamel Ag Fadenfuehrungstrommel fuer Kreuzspulmaschinen
US2419003A (en) * 1944-07-24 1947-04-15 Arundel Coulthard & Co Ltd Yarn winding machine
US3092339A (en) * 1960-11-30 1963-06-04 Du Pont Yarn windup

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937420A (en) * 1971-10-29 1976-02-10 Galis Alex J Level wind device
US20200017338A1 (en) * 2018-07-12 2020-01-16 Hall Labs, Llc Dual-screw line guide
US10745256B2 (en) * 2018-07-12 2020-08-18 Hall Labs Llc Dual-screw line guide

Also Published As

Publication number Publication date
ES298949A1 (es) 1964-10-16
GB1014868A (en) 1965-12-31
CH435071A (de) 1967-04-30

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