US2285439A

US2285439A - Winding machine

Info

Publication number: US2285439A
Application number: US369895A
Authority: US
Inventors: Charles H Jones
Original assignee: Leesona Corp
Current assignee: Leesona Corp
Priority date: 1940-12-12
Filing date: 1940-12-12
Publication date: 1942-06-09
Anticipated expiration: 1959-06-09
Also published as: GB553834A

Description

v J1me 1942- N c. H. JONES WINDING MACHINE Filed Dec. 12, 1940 s Sheets-Sheet 1 M rm fllbrja 5t June 9, 1942. c JONES 2,285,439

WINDING MACHINE Filed Dec. 12, 1940 3 Sheets-Sheet 2 7 9 I I MAXMU/V 7ILQAZRSEI+I @252 Patented June 9, 1942 UNITED i. STATES, PATENT F'FIC r f 2 2s5,4s9

V wnvnmcmcnmr: Charles 11.; I e nes Warwick, It. 1., assignor to Universal WindingLCompany, Boston,jMass.,vaj 4 corporation of Massachusetts Application December 12,194.summaries 1 v 12 Claims. (Cl. 24 2 -43) This invention relates to winding machines for winding cops, cones or packages of yarn, thread and other strand materials.

By the term yamf as used in the'following specification and claims is meant any type of strand material whatever its characteristics, and

the term package is used herein to indicate a wound mass whatever its shape or him.

One object of the present invent'on'is of generally cylindrical or conical form having the mass'oi yarn tapering towards its opposite ends. a r

Another object of the invention is to provide a winding machine for winding packages of yarn and the like with'the material built up in layers gressively. from maximum to minimum and minimum to maximum alternately throughout the winding; V Another object of the invention is to provide a winding machine of the type indicated for wind ing' packages of the character described-in my copending application, Serial No. 363,547, filed October'30,1940. 1 Further objects of the invention are 'set'iorth in the following specification which describes a preferred form of construction of-the winding machine, by way of example, as illustrated by the accompanying drawings. In the drawings:

Fig. 1 is a side elevational view showing'two heads or units of a gang winding machine embodying the novel features of the presentinvention; 7 7

Fig; 2 is a plan view partly in section showing the main elements of the winding mechanism of one unit of the machine; 7 Fig. 3 is anenlarged detailed view of a portion of the mechanism part sectional on line 3-3 oiFig;2; 4 r p r g Fig. 4 is a part sectional view oi one typeoi package which may be wound on the present windingmachine; ,7 V I g 7 Fig.5 is a diagrammatic view illustrating the variation in the length of the layers of yarn in the package as the traverse changesv progressiveiy from maximum to minimum extent and then to maximum extent alternately throughout the winding;

Fig. 6 is an enlarged plan view of a portion oi to Drovide a winding machinefor producing packages Fig. 7; and i of the invention is to'provide a the thread-guide traversmg mechanism of t machine and the .former-cam, or-track for oscillating the thread-guide, showing the extreme positions oirthe guide at the'end of itstraverse for winding with a maximumextent-oitraverse; Fig.-7 is a similar cnlargedview showingthe former-guide or cam-track in opposite position with the thread-guideillustrated in the posi-v tions it assumes' when: winding with a minimum length of traverse;

-- Fig. 8 is a sectional view taken on Fig, 9 is. a side view showingjthe thread-guide and its oscillatingmeans-orcam-track, v r

r The present inve 'tion'has for-its general object to provideal-machine forpackages of thetype shown andi described inmycopending application, referred to-, above, in which the yarn is depositedin layers of; alternatelyincreasing and decreasing length,;irom to maxi: mum and maximum to minimum, throughout successive cyclesr- Byithis method of winding an improved package .is produced to provide ior fits greater stability, torender it less subject toso ilf; ing in the processtof winding, and to facilitate unwinding the yarn or other strand material thereirom in delivering. it during supsequfent transferprocesses. 5. g

The present machine is particularly adapted foriwinding yarn or other strand material which has been sized or otherwise treated with liquid to provide amoreporousstrircture ofthei yarn mass; and a disposition of the turns orconvolutions "of- 'the. yam'strands to avoid their adhesion in-the-Vpackage; liable: to prevent free delivery or thematerial in unwinding it ;-thereirom. ,Such

a form vofpackage P is shown in Figs 4 of the present drawings as being twoundlon a cylin- .dric'alcoreor tubett with a gradually increasing and diminishing length-oi traverse as illustrated graphically in Fig. 5. It is-to be understood,

however, that the-p'resent'machine is adaptedior adjustment to wind packages withT the; traverse or; the yarn varying in extent in different order from that referred to" above and withtheflarn wound on cores or tubes of different shape',-such for example, as com r holders.

Referring to Fig. '1 of the present dra wings,

.thelirive rition is herein illustrated'as embodied a multiple :unit or 'gang-type'machine, two

winding heads or units {being mounted on beds .3 supportedfromlthe floor by legs 4; {Each bed .may'mount. a series oi units, and as'herein shown two gang machines v. are' arranged end-for-end ne at Q and coupled together for driving by a single motor indicated at M.

mounting in the form of a bell-crank lever 45 Each winding unit comprises a box-like frame 5 carrying bearings for a horizontal winding spindle 5 and a cam-shaft 1 arranged therebelow a in parallel relation thereto. The winding spindle 5 projects forwardly from its bearings in the frame 5 and carries thereon a suitable mandrel with by suitable clutches, not herein shown, as

usually provided in machines of the present type. The belt H passes around a pulley 13 on the motor-shaft Hand-thence leads under idlerpulleys l5 and I5 to direct it-'acress-tlsie topof the drive-pulleys l2 on th spindles .5. Preferably, a series of idler-pulleys I! are journaled on pivoted arms It to adapt them to bear against the belt;ll to maintain it in contact with the pulleys l2 on the several spindles 5. An idlerpulley I1 is provided adjacent each winding unit or head'2 and the belt H is continuous between the drive-pulleys i2 with its'slack length extending from end to end beneath the spindle drivepulleys l2.

Referring to Fig. 2, the cam-shaft I of each unit carries a helical cam fast thereon within-the frame creasing 5; the cam-shaft being driven from-.the winding spindle 5 by any suitable arrangement of'belt or gears as usuallyvemployed'in, machines of the present type but not herein illustrated. The cam 20 is formed with a helical groove engaged by a roller or bowl 22 on a reciprocable traverse-rod 23. The traversepivoted to the arm or slide 4l by means of a stud 45. The main arm of the bell-crank lever .45 is formed at its sides with bent-over ears or

lugs

41 and 43 for engaging around the sides of a hairpin-shaped portion 43 of the thread-guide 40. As herein shown the thread-guide is constructed of wire bent into a relatively narrow loop 50 at its outer end, through which the yarn y' is adapted'to feed, the loop being a continuation of one arm of the hairpin-shaped loop 43 which supports the thread-guide on the bell-crank.

lever 45. The loop 53 of the thread-guide 40 is oil'set from one arm of the loop 43 by means of a sharp bend 5| and the end of the wire in the "loop 53 is bent at an angle "to overlie this arm of the loop 43. In this way a re-entrant opening is provided for drawing the yarn strand 1 along the inclined portion 52 and between the sides of the loop 50 of the thread-guide to insert it therein, the yarn being preventedfrom release therefrom by the right-angular bend 5| in the wire. The hairpin loop is held in connec tion with the lever by'means of an arcuately' offset portion 54 on one of its arms adaptedto snap into place between the two ears 4!. By this construction of mounting the thread-guide 45 is adapted to rock or oscillate with the lever 45.

rod 23 is mounted to reciprocate in grooves or 40 by means of a pin or stud 5|. The-rearward end guideways in atraverse-frame 25 supported from the cam-shaft I. The traverse-frame 25 has a horizontal arm 25 with a groove in which the traverserod 23 slidesand an inclined arm 21 formed with a hub 23, see Figs. 1 and 2, surrounding the forwardly-projecting end of the cam-shaft I and held in place thereon by means of a disk or collar 23. The traverse-frame 25 extends outwardly from the cam-shaft I at an inclination to the horizontal and is held in fixed position by means of a wire rod 30 hooked through its arm 2! and terminatingin a loop fastened to sive, the traverse-rod carries an oscillating thread-guide" at its outer end pivotally connected thereto by means as next described. Fastened to the end of the traverse-rod 23 is an arm or slide 4| formed from a flat strip projecting upwardly from the rod and then bent at rightangles to extend across the top of the traverseframe back or plate 32in spaced relation thereto.

' The outer end of the arm or slide 4| is bent downwardly and formed into a V-shaped catch or hook 43 engaging around the beveled edge of the traverse-frame back 32 and adapted to slide therealong. The thread-guide 40 is carried by a 75 of the cam-track 55 is formed with a curved arm 62 carrying a stud or pin 53 riveted theretoand projecting upwardly through va bearing aperture in a slide-bar 55 which extends thefull length of 45 the gang-machines and'is similarly connected to the cam-tracks of all the several winding units.

' in variable angular relation tothe plane of movement of the traverse-rod 23 and the thread-guide '43 carried thereby; two opposite extremes of position of the cam-track being represented in Figs.

6 and 7. By thuschanging the position of the cam-track the thread-guide 40 associated 55 therewith is caused to .be rocked or oscillated during each traverse by the sliding engagement 45 with-the supported in a bearing 53 on a casing o'r bracket 59. The shaft 51 carries a bevel gear 13 pinned to its rearward end which meshes with apinion H on a shaft 12. The shaft 12 is .i0urnaled in a bearing 13 on the bracket 33 and carries :a sprocket-wheel 14 fast at one end. The sprocketwheel 14 is connected-by a chain" to another sprocket "last on a shaft "extending horizon.- tally below the winding units and Journaled in suitable bearings 13 and 13 carried by brackets 88 and 8| supported from the legs 4 of the machine frame. I

The bracket an is formed with a bearing :2 in

which is journaled a shaft 83 carrying a beltpulley 84 at one end. The pulley 84 is connected .by an endless belt to a similar smaller pulley.

85 fast with and rotatable by the idler-pulley,

previously referred to as having the drivingbelt,

engages the periphery of the cam 5.6 to cause the bar to be reciprocated therefrom with a relatively slow longitudinal motion. The roller 98 is j-ournaled on a stud 9| projecting from a bifurcated member 92 which straddles the slide-bar 65 and is clamped thereto bymeans of a nut 89 and washer 93 shown in detail in Fig. 3; a wire ring 94 sprung intoa circumferential groove 95 at the end of the stud 9| .serving to hold the roller 98in place thereon. To' maintain the roller 98 constantly bearing against the rim of the cam 66 ahelical spring 96, see Fig. 1, acts to draw the bar 65 toward the'left; the spring being anchored .to a pin .91 fast in the frame 5 and. connected at its opposite end to a member 98 fixedly clamped on the slide-bar by means of a set-screw 99.

When .the machine is equipped for sizing or emulsifying the yarn as it is wound into the pack! age a moistening device may be provided; for example in the form substantially as shown in Fig. 1 of the present drawings. As herein illustrated the moistening device comprises a trough or tank I88 for the winding units of each gangmachine. The troughs I88 are arranged below the winding heads 2, being supported from the legs 4 of themachine frames and adapted to contain the desired emulsifying liquid such as a suitable size. A horizontal shaft IN is joumaled in,

bearings at the ends of each trough and carries a series of rolls I82 which dip into the liquid in thetank; a chain I83 connecting the roll-shaft to be driven from the lower shaft 11 previously .referred to, see Figs. 1 and 2, by means of sprockets I84 and I85. -The yarn y is supplied from a suitable source arranged below the emulsifying device, but not herein shown, and the strandleads up. through an opening in the front of the trough and is'directed across the surface yarn 1/ is wound on the core or tub'e't and' trav-f ersed back and forth longitudinally thereof by the reciprocation of the thread-guide 48 carried by the traverse-rod 23 The machine may be started to operate with the former-guide or camtrack 55 in any positionin which it has remained after a previous winding" operation and the'initial traverse'of the yarn" on the tube twill be regulated in accordance therewith as the thread; guide is oscillated from the bell-crank lever 45 due to the travel of the shoe 58 in the slot 5T of the cam-track. For example, if the cam track 55 has been rocked tothe position illustrated in Fig. 6 afterthe cam 55 has been turned to the position shown in Fig. 1, the thread-guide 48 will be actuated with a maximum extent ofithrow and the yarn will be traversed to substantially the thread-guide 48 the' full length of the tube t shownin 1 ig. 4..-. Each time the traverse-rod 23 iscarried outwardly to the full extent of its traverse 'thes'hoe.

68 ridingin the slot 5'l..of the cam-track 55 :will cause the bell-crank lever to rock into the theelid of the traverse-rod to increase the length of traverse of the yarn. On the other hand 'jas the traverse-rod 23 moves back in' 'the reverse direction the engagement of'theshoe 88 with the slot 51 in the cam-track 55 willrock the,lever"45 in the opposite direction to carry the' loo p 58Iof indicated by dash lines mm. 16 whereby to ex tend the traverse of the yarn in this direction.,, 2 Asthe winding continues the edge-camiifi" is rotated slowly throughits connections with the main drive of the machine,'that is by the rota tion of the shaft 11 communicated through the sprocket .18, chain'l5,'and sprocket I4 to th'e pinion II and gear" on the shaftlil 'of't'he' cam. This slow turning, motion of thec'am 86 causes its eccentric edge to act against the roller 98 fast on the slide-bar 55to slide the bar towardv the right as viewedin Fig l. The b'ar85being con nectedto the cam-track 55 at 53 causes the track to be slowly shifted or rocked on its pivot 56 until eventually it assumes the position shown in Fig. 7 of the drawings. During thispivotal movement of the track the inclination of its slot 51 with respect to the transverse-rod -23 will be gradually lessened sothat it'will havea diminishing effect to rock the bell-crank lever 45, thereby reducing the length of traverse 'imof the moistened roll I82 by means of a suitable guide I88. From the guide I88 thestrand y 7 7 feeds upwardly through the thread-guide 48 and .parted to the strand of yarn 1 being deposited on the tube it. As the cam-track 55 reaches a position parallel with the traverse-bar 23 theoscillating motion of the guide will cease entirely so thatfthe yarn will'be traversed to anextent 7 beyond this latter point until'eventuallythe of operation is explained as follows: Each head of the machine is prepared for winding by leading the strand of yarn y from its supply across the moistening roll I82 and through the fixed guide I86, whence it is carried up through the thread-guide 48 and its end attached to the core or tube t on the winding spindle 8, the tube hav-.-.

equalto that of the traverse-rod. The displacement of the cam-track. 55 continues, however,

track reaches the position shown 'in Fig. 7. As the track 55 is shifted from its parallel relation to the traverse-rod 23 towardthe inclined position shown in Fig. 7 its action on thelbell-cran'k lever 45'and thread-guide 48 will be the opposite from that first described, that is it will rock the thread-guide 48 inwardly i from the limits. of movement of the traverse-rod to shorten the traversev imparted to the strand 1 or,v in other words, it will gradually reduce the lengthof the layers being deposited on the package wound on the tube t, After the bar has reached the end of its movement toward the right, as indicated in Fig. 7 it is swung back in the opposite direcdies. As each spindle 8 isrotated the strand of rearwardly to the position out the winding of the-package.

The motion imparted to the: slide-bar SI by the cam ii is relatively slow so that the change in traverse of the yarn is gradual. However, the

. actuation of the slide-bar "is so timed that it will rock the cam-track I on itspivot throughout its full movement in opposite directions a said member to adapt .it to oscillate with respect thereto, and means 'to oscillate the thread-guide on the reciprocable member first in one direction andthen in the opposite direction during its re-' ciprocation thereby to alternately increase and. diminish the length of traverse of said threadguid'e at both ends of its stroke throughout the of a package on thewinding spindle. '3. In a winding machine, a= rotary winding spindle, a member reciprocable opposite said spindle, ,a thread-guidepivotally mounted on sufllcient number of times to provide a relatively large number of changes in the traverse of the in each package. For example, it has been yarn found that starting with the maximum extent of traverse and reducing its length gradually to the minimum, and then increasing the traverse to the maximum, this cycle if completed four times a minute when winding the yarn at a spindle sp'eedof-l2l0 R. P. M. will produce a satisfactory package of the type illustrated in Fig. 4 of thepresent drawings. The ratio between the maximumand minimum length of traverse and the period of change in successive cycles is arbitrary,

however, and maybe adjusted to wind packages of diflerent'type which, in most instances, will have the same general form, that iswith the peripherytapering toward the ends due to depositing more yarn at the center of the mass. m. 5 is a graphical representation of one preferred method ofhehange in the traverse of the 7 yarn from maximum to minimum extent and back to maximum extent continuously through successive cycles ofthe winding. After the package is completed to the required size it is removed from the machine and the winding may be continued to produce other packages without any adjustment of the mechanism of the; machine. That is to say, the winding of a pac fiagemay be started at any point as regards the length of traverse without materially affecting the form or structure of. the package produced on themachine. .It will be observed from'the foregoing specification that the present invention provides a. novel and ingenious winding mechanism for continuously changing the 'lengthof traverse of the yarn being wound to produce packages of improved typewherein the layers are of graduated length to secure the advantages hereinbefore set forth and stated more fully in my copending application referred to above.

, While the invention is herein shown and described as embodied in a preferred form of construction, it is to be understood that modiflca tions may be made in the structureand arrangement of the parts of the winding mechanism and the .means for controlling the change in the of traverse of the yarn during winding on .theBmachine without departing from the spirit or scope of the invention.,Therefore, without limiting myself in this respect, I claim: 7

1. In a winding machine, arotary winding spindle, a traverse-rod reciprocable opposite said winding spindle, a thread-guide reciprocated by said traverse-rod and adapted to be shifted longitudinally thereof, andmeans for shifting said thread-guide first outwardly and then inwardly along the traverse-rod to alternately increase and-diminish the length of traverse stroke of the guide continuously during the reciprocation of the traverse-rod.

'2. In a winding machine, a rotary. winding spindles reciprocable member, means to reciprocate said member, a thread-guide pivoted to said member to adapt it to oscillate with respect thereto, means for reciprocating said member,

arockable cam-track for oscillating the threadguide continuously during its reciprocation by said member, and means for rocking the camtrack first in one direction and then in the op-;

posite direction to alternately shorten and lengthen the traversestroke of the: thread-guide.

at both ends :of the package being wound,

4. In a windin'g machine, a rotary winding spindle, a reciprocable" traverse-member, a thread-guide pivotally connected to said mem-- her, a rockable-cam-track, means engaging said track and operative on the thread-guide to oscillate the latter about its pivot, and means to continuously move the cam-track flrstinone'direcw tion-and then in the opposite direction to cause it to rock the thread-guide to alternately lengthen and diminish its extent of traverse ,stroke at both ends of the winding spindle durmg the winding of a packagethereon. a 5. In a winding machine, a rotary winding spindle, a traverse-member reciprocable longitudinally of said spindle, a thread-guide pivotally connected to said traverse-member, acam-track mounted on anxed pivot to adaptit to be-swung into inclined relation to the path of travel of 'the thread-guide, means engaging said camtrack' for rocking the thread-guide on the traverse-member during its reciprocation thereby, and means i for continuously swinging the cam-track back and forth on its pivot to cause it to rock the thread-guide to alternately increase and diminish its length of traverse stroke at both ends of the winding spindle.

6. In 'a winding machine, a rotary winding spindle, a re'ciprocable traverse-member, means to reciprocate said member longitudinally of the winding spindle, a thread-guide pivotally con-.

nected to the traverse-member, a cam-track pivoted to swing toward and away from the traversing member, means connected to the thread-guide and-travelable on the cam-track,-

and means for continuously shiftingthe position of the cam-track first in .one direction and y I then in the opposite direction to cause'it to rock the thread-guide to progressively change its ex tent of traverse at both ends of itsstroke from maximum to minimum and to maximum in successive cycles throughout the winding. 7

' 7. In a winding machine, a rotarywinding spindle, a' traverse-member reciprocable longif tudinally of saidspindle, athread-guide carried "by said traverse-member and shiftable thereon to vary its extent of traverse during the reciprocation of saidmember, a cam-track operative on the thread -guide. to shift the latter onthe traverse-member,. and means to continuously vary theposition of said cam-track to shift'the thread-guide first in' one'direction andthen in the opposite direction to alternately lengthen and shorten its traverse in successive cycles throughout the winding of a package on the winding spindle.

8. In a winding machine, a rotary winding spindle, a rockable thread-guide, means for traversing said thread-guide longitudinally of the spindle, and means for rocking the threadguide continuously during its traverse comprising a cam-track operative on said thread-guide, and means for continuously moving the cam-track to gradually shift it from one position to another and then gradually return it to its first position to progressively increase and diminish the extent of traverse of the thread-guide at both ends of its stroke during recurring cycles in the wind- 9. In a winding machine, a rotary winding spindle, a traverse-bar reciprocable longitudinally of said spindle, means for reciprocating the traverse-bar, a thread-guide pivotally connected to said traverse-bar to adapt it to rock in the direction of its traverse, a cam-track rockably mounted on a stationary pivot, means slidable on the cam-track and connected to rock the thread-guide, and a. cam for rocking the track on its pivot to vary the extent of. oscillation of the thread-guide to progressively increase and diminish the extent of its traverse at both ends of its stroke during recurring cycles throughout the winding.

cam-track to swing it on its pivot, and a cam for sliding said member longitudinally in opposite directions to swing the cam-track on its pivot to oscillate the thread-guide to progressively lengthen and shorten its traverse at both ends of its stroke during successive cycles throughout the winding.

11. In a winding machine, a rotary winding spindle, a fixed support positioned opposite said spindle, a traverse-member reciprocable on said support, a thread-guide pivotally connected to said traverse-member to adapt it to oscillate during its reciprocation thereby, a cam-track pivoted on the fixed support, a shoe slidable on the cam-track and connected to rock the threadguide during its reciprocation with the traversebar, a longitudinally-slidable bar connected to the cam-track, and a cam for sliding said bar in alternately opposite directions to swing the cam-track on its pivot during the reciprocation of the traverse-member to rock the thread-guide to progressively vary its extent of traverse.

12. In a gang winding machine, the combination with a plurality of winding units, of a rotary winding spindle for each unit, a traversemember reciprocable longitudinally of each spindle, a rockable thread-guide reciprocable by said traverse-member, a cam-track; for srocking said thread-guide during its reciprocation by the traverse-member, means connecting the cam-tracks of the several winding units to shift the position of the latter, and means for actuating said last-named means to shift the camtracks first in one direction and then in the opposite direction to progressively alter the range of traverse of the thread-guides.

CHARLES H. JONES.