US2608817A - Spinning mechanism - Google Patents

Description

Sept. 2, 1952 H. Rr-:lNlcKE SPINNING MECHANISMA 5 sheets-sheet v1 Filed Nov. 29. 1950 lll/1111 lnven for' Sept. 2, 1952 H. RElNxcKE SPINNING MECHANISM 5 Sheets-Sheet 2 Filed NOV. 29, 1950 In ven for AHorneY Sept. 2, 1952 H. REINICKE SPINNING MECHANISM 5 Sheets-Sheet 5 Filed Nov. 29, 195o Inven for f J 77a,

.Fly J1 byf'- @dw Sept. 2, 1952 H. REINICKE 2,608,817

SPINNING MECHANISM Filed Nov. 29, 195o 5 sheets-sheet 4 Inventor AHorneY H. REINICKE SPINNING MECHANISM Sept. 2, 1952 5 Sheets-Sheet 5 Filed Nov. 29, 1950 Jrg 1.a

Patented Sept. 2, 1952 s rA-T E1s APATENT oFl-Igor;v

SPINNING vHerbert Reinicke, Ehingen, Germany Application NovembenZS, 1950, SeriaLNo. lfi,L I

IneGermanyfNovember 30, 119519' result can alsoI be obtained if the drafting; drive` of -the twist producing delivery and drafting-jelement, respectively, is influencedcorrespondingly; With these and 'other-objects in View, title-inverte.` tion is illustrated on ings:

In the drawings; inwhich like ref erencepnumer,

ing. process; andLthe delivery Inview; ofi the various. characteristics of, the, different; kindsv of libres, suchas. animal; vegetable natural, and artcial, inrespecttc tlielzlength, ,surfacequalfe ity andthe,numben or bres in a,. givensection. of; thread,` ,it ,ishow,eyer, necessary td adaptthe twisting; process to..v ther respective delivery; or. height of1 draft,v` in otherA words. to, change, the. permanentrrelation-between. twisting anddelvery.intol alvariable, one. Besidesit isdesirable particularly fon short, stapled. fibrous material, suchrasfis, processed, in the spinning of cardine, woolf,to twist,thefzbrous.,materialen as ,to preventany;A sei-,calledrfalseetwist, ,i. e., two ,opposite twistsinthedraftingeld from rbeing f given finto thesliyen or rovingamisnroduced whenusing conventional meansffortwistingrsuchlas twisting.

tubes. f

Y Oneof thefobjects of,thepresentfinvention-is,to provide some. meansy enabling-f` the relation: be: tweenltwisting and.- deliveryto bei varied, and. a proper twistto .be obtained.

The invention consistsin that the twist produc: delivery-f and drafting element, respectively, is provided with an individualv drive eachior twistingg and draftingi eachA of said L drives j being variable,1 preferably infinitely.

Anothe-robjectofitheainvention-isrtc enablethe streng-therngf andeequalisation ofA thesliver or. rovinga on; leaving. thee delivery-f elementto be madntaineehaiso in therfspnnzyarm in other words tocavoid alsa-called falseztwistn Accordingly, it ,is proposed:toarrangethe-.twisttproducing delivery and drafting; elementi respectively, in. suchL a 'mannen thattheztwisttof, tha'nisned yarnl is passed: into ther-twistz producing,deliveryE and drafting-element; respectively;inthesamefdirece tieni of -1 twist# which has.- beenl imparted ,toathe siii/eri orrroving; bygthef delivery`r oriA drafting; (ele: ment.

Affurthenobjectfofithe inventioniis to .eliminate anygthickenings-inthefthread orzyarn4 To. achieve thisitheftw-ist'producing delivery;y and drafting-elemento, respeetivelm, can,- Vfor.r instance- I be controlledbygsomezgeari-ng;meansfin suchfaf way-r that thdraftffwillbeinereased or decreased,period isolants. (01.1 maerr the accompanyingrj dravir alsindicate like parts;

Fig. 1 is a schematic side elevation olf'tlie mechanism accordingv to the inventionA as?4 ar ranged between the feed rollers ofgthe` draftingtv system'and the spindle-sofia spinning-machine;'-

Fig, 2-Y isa longitudinal' section through? the;

mechanism according-'tothe invention;-

Fig: 3"is aplanviewofFigz 2';- A Figs: 1 and- 5fL areA afront'v and l side elevation;

respectively', ofi the bearing-body carrying the deliveryand draitingrollers; respectivelyi j Figures Ao 'and '7 are frontv andfside Niews grespec?` tively; ofthe driven element of a Geneva" drive forming a, part of'tl1e drive to the drafting'rollers; Figures 8V and 9^ are front and" sideA views@ respectively, ofi the drivingelementofthe Genevaz drive; Fig: 1o isv a iongitudmar section thro'ugh arrother-modicationof the invention usinggendless aprons for the roving or sliver.,

Fig; llisa plan view ofEig. l0; 1"ig.112 isl aschematicsideelevation showing; thepathA of the, rovinggor sliver through 'thepfeedj rollers ofthe draftingA system inra sloinningrna. chine and through the mechanismaccordingtd Figs'. lOandll';v

Figg 13'; is a longitudinaL section throughan:

other embodiment of the invention in whichftheV drafting elementsare situatedbelow thebear: ng.b'ody Eig. 14is.,a .view oiliga 13 .from below; Eig-. 15 .is a .sehematic .view` showing thefpath of 'thefroving or sliverthrough, the: mechanism accordingto Eigs. 1.3,and214.

Fig. 1 showsthepath of the roving or--sliverj I runningfrom` the bobbini andi-b obbin, drivngf drum (not shown) vthrough the two feed:rollers-f2s 3vt 'Ihezfrovngi or sliverthen reachesa the two drafting rollerss'fir 5 and, tlienee.-y as:` usualev the spindle fand, cop,- respectively; asrindicatebxa the arrows fshown. The draftingfrollers 4;- 5,-'do not only (revolve: in -the'adirection 0ffeeding`- butithey; also rotateratzthe samey timeftaroundvthei axis:z of

the sliver orfroving` l, =grippingand twistinggsarne cally orfeyenistoppediintermttentlys n zlhe: Sam@ duringsaid;rotation,

The.- modeeof; operationzof the-:devicebyt which these movements of the rollers 4, 5 are obtained isshown ith-Fiss. 2 150:9

The bearing body 6 supporting the two drafting rollers 4, and rotating around the axis of the roving or sliver is illustrated in Figs. 2, 4 and 5. Ball bearings 9 and I0 are mounted on the cylindrical ring surfaces 1, 8 of the bearing body 6. The inner bearing race il of the ball bearing 9 is secured to the bearing body B. The outer race I2 is fixed to a support I3 which is secured by screws 33 to the supporting arm I5 forming part of the frame. Thus the bearing body 6 is rotatably mounted in the supporting arm I3 by means of the ball bearing 9. Drive to the bearing body 6 is from the pulley I6 which is secured thereto, for instance by bolting. The'drive is by a belt I'I applied to the pulley IB.

The inner race I4 of the ball bearing I0 is secured to the bearing body 6. The outer race I8 is secured to the inner wall of the pulley I9, which either forms a unit with the bevel gear 20 or both parts are individual ones which are connected to each other by some known means. By a belt 2| the pulley VI9 and thereby the bevel gear 20 can be rotated in relation to the bearing body B because of the provision of the ball bearing I0.

The bands or belts I1 and 2I are individually driven, for instance by an infinitely variable gearing which is schematically shown in Fig. l by the discs and 16.

The bearing body G has a bore 22 extending throughout the fulllength of the body and serving as a passage for the roving or sliver I. The bearing body is further provided with two fork-like lugs, 23, 24 carrying the supporting pins 25, 23 on their outer surfaces. AXially aligned bores 21, 28 are provided in the inclined lugs 23, 24. The axle 29 of the drawing roller 5 fits these bores. As is tobe seen more particularly from Fig. 3, the drafting roller -5 is supported between the inclined lugs 23, 24 and secured to the axle 29.

The other drafting roller 4 yieldably contacts the drafting roller 5 (Figs. 2, 3) with the aid of spring 31. The roller 4 rotates freely on the nub 34 of a crank lever 35 provided therefor, said lever having an eye 3B for mounting on the pin 2B on which it is permitted to rotate but not to move axially.

One end 38 of the spring 311 is secured to lug 24. The spring is guided under tension in such a way that by its opposite end 'I1 the crank lever 35 or the drafting roller 4 is resiliently pressed against the drafting roller 5 (Figs. 2, 3, 5). Drive to the two drafting rollers 4, 5 is ensured through bevel gear which, in turn, is driven by the pulley I9 through belt 2I. The bevel gear 23 meshes with the small bevel gear 39 thus causing the drafting rollers 4, 5 to be driven directly.

Twist is given to the sliver or roving by the drive I6, I1 to the bearing body E in the manner described, while drafting of the sliver or roving is effected at the same time by the rollers 4, 5 operated by the drive I9, 2|. As the speed of driving elements IS, II and I9, 2l, respectively, may be regulated, the drafting can be brought into the desired relation to the twisting.

If drafting i. e., the rotation of rollers 4, 5, is to be achieved intermittently, or stopped for a short time, this can be obtained by varying the drive through I9, 2I correspondingly by varying the number of revolutions of the drive I9, 2I in relaroller 5 carries a Geneva wheel 3B having the usual driving grooves 3I and notches 32.

The Geneva wheel is engaged by pins 43, 44 of the driving disk 4I, on the hub 43 of which is supported the driving bevel gear 39 meshing with the bevel gear 20.

If the bearing body 6 is held stationary and the bevel gear 20 driven; the small bevel'V gear 39 rolls on the bevel gear 20, thereby driving the driving disk 4I. Thus, the pins 43, 44 engage the grooves 3I .of the Geneva wheel 30. The full segments 45, 46 on the disk 4I co-operate in the usual manner with the segmental recesses 32 provided on the Geneva wheel 33. Thus an intermittent rotation is obtained according to the design of the Geneva wheel 30 and is transmitted to the two drafting rollers 4, 5.

The above description is only meant to illustrate the intermittent movement obtained by the rolling motion of the bevel gear 39. In practical use, the bearing body 6 is not held stationary, but is caused to rotate by means of the belt I7, Whereas the bevel gear 20 is either held stationary or rotated by the belt 2l at a different speed and, as the case may be, in a different direction of rotation than the bearing body 6. Here again, a rolling motion of the bevel gear 39 is accomplished and thereby an intermittent rotation of the two drafting rollers 4, 5 obtained, said rollers permitting intermittent drafting of the roving or sliver.

Whereas a separate pair of drafting rollers 4, 5 is coordinated to each thread of roving or sliver, the feed rollers 2, 3 extend over the full length of the machine or part of it. They may rotate at constant speed, but they can also be driven intermittently in the same manner as the drafting rollers 4, 5 by suitable means, such as a Geneva mechanism. Despite the temporary stoppage of the drafting rollers, the speed of rotation of same is so selected in relation to the speed of the feed rollers 2, 3 that adequate drafting is ensured.

The rotational movement of the thread of sliver or roving is effected by the rotation of the bearing body 6. Rotating around its central longitudinal axis, said body drives both the Geneva gears 3U, 4I supported therein and the drafting rollers 4, 5, thus causing a rotation around the thread of sliver or roving. Since the latter is gripped between the rollers 4, 5, it is twisted during said rotation. The speed of rotation of the bearing body 6 can be varied within widelimits. For this purpose, the drive of thebelt I'I is derived from an infinitely variable gearing as shown schematically at l5.

In like manner, the drive of the belt 2I can be obtained from an infinitely variable gearing 16, it being also possible'for the pulley I9 to be at rest or to rotate in reversed direction of rotation. Thus the rolling speed of the bevel gear 39 and consequently the drafting speed of the rollers 4, 5 can be varied within wide limits just as the degree of twist of the thread of sliver or roving I. In the arrangement according to this invention, the drafting and twisting forces will become effective at the same point of the roving sliver. Due to the fact that the rollers 4, 5 resiliently Contact each other, a satisfactory conveying, or feeding, of the sliver or roving, even of varying thickness, is ensured.

Figs. l0 to l2 show the path of the sliver or roving through a mechanism with endless conveyor aprons. In these views, parts corresponding to those of Figures 1-9 bear the same numerals with a subscript "a. Starting from the bobbin and bobbin driving drum (not shown), the thread passes between the two feed rollers 2a, 3a. The

axis of said bore, said rollers being rotatable on their own axes and also rotatable with said body, means for driving said body in rotation, means for driving said rollers in rotation on their own axes independently of the driving of said body, and the said means for driving said rollers including a Geneva drive, whereby the rollers are alternately stopped and driven.

4. In a mechanism for simultaneous twisting and drafting of fibrous material; a .body having a bore therethrough and mounted for rotation on the axis of said bore, a pair of draft rollers mounted on one end of the body on axes transverse to the axis of said bore so as to rotate with the body while also being rotatable on their own axes, a Geneva wheel connected with one of said rollers, a Geneva drive element operatively associated with said Geneva wheel, and means for independently driving said body and said driving element.

5. In a mechanism for simultaneous twisting and drafting of brous material; a body having a bore therethrough and mounted for rotation on the axis of said bore, a pair of draft rollers mounted on one end of the body on axes transverse to the axis of said bore so as to rotate with the lbody while also being rotatable on their own axes, a Geneva Wheel connected with one of said rollers', a Geneva drive element operatively associated with said Geneva wheel, and mounted on said body, a bevel gear rotatably mounted on said body, another bevel gear connected with said drive element and meshing with the bevel gear on said body, and means for independently driving said bevel gear on said body and the said body.

6. In a mechanism for simultaneous twisting and drafting of fibrous material; a body having a bore and mounted for rotation on the axis of the said bore, a draft roller mounted on one end of the :body on an axis transverse to the axis of said bore so as to be rotatable with the body and also rotatable on its own axis, a second drafting roller carried by the body and resiliently urged against the said rst roller, a Geneva wheel connected with said rst roller and having a plurality of drive grooves therein, a drive disk on the said body having a plurality of drive elements engageable with said grooves, a first bevel gear rotatably mounted on said body and a second bevel gear meshing therewith and connected with said drive disk, and means for independently driving said first bevel gear and said body.

'7. In a mechanism for simultaneous twisting and drafting of brous material: a body having a bore and mounted for rotation on the axis of the said bore, a draft roller mounted on one end of the ybody on an axis transverse to the axis of said bore so as to be rotatable with the body and also rotatable on its own axis, a second drafting roller carried by the body and resiliently urged against the said first roller, a Geneva Wheel connected with said rst roller and having a plurality of drive grooves therein, a drive disk on the said body having a plurality of drive elements engageable with said grooves, a first bevel gear rotatably mounted on said body and a second bevel gear meshing therewith and connected with said drive disk, a rst pulley connected to said first bevel gear and a second pulley connected to said body, and separate drive Ibelts engaging said pulleys for driving said body and draft rollers independently.

`8. In a mechanism for simultaneous twisting and drafting of fibrous material; a body having a bore and mounted for rotation on the axis of the said bore,'a draft roller mounted on one end of the body on an axis transverse to the axis of said bore so as to be rotatable with the lbodyand also rotatable on its own axis, a second drafting' roller carried by the body and resillently urged against the said first roller, a Geneva wheel connected with said first roller and having a plurality of drive grooves therein, a drive disk on the said body having a plurality of drive elements en4 gageable with said grooves, a first bevel gear rotatably mounted on said body and a second bevel gear meshing therewith and connected with said drive disk, a first pulley connected to said first bevel gear and a second pulley connected to said body, and separate drive belts engaging said pulleys for driving said body and draft rollers independently, said belts being adapted for being independently driven by variable speed driving means.

9. A method for simultaneously twisting or drafting a slub or roving comprising: delivering the said slub or roving through feed rollers, receiving the said slub or roving .between cooperating draft elements, rotating the said draft elements in a plane transverse to the length of said slub or roving for imparting a twist to the same, and periodically increasing and decreasing the speed of operation of said drafting means.

10. In a method for simultaneously twisting and drafting fibrous material; engaging the material at spaced points, relatively rotating the material at the said spaced points for imparting a twist to the material, moving the material at one of the said points in the direction of its length at one speed and in the same direction at another speed at the other. point, and periodically and continuously varying the said speed at one of said points.

11. In a method for simultaneously twisting and drafting fibrous material; delivering the material in the direction of its length at a iixed speed at one point, engaging the material at a second point spaced from said one point and continuously twisting the material at the said second point, and intermittently driving and stopping the material at said second point to impart a longitudinal vibration to the material being drafted.

12. In a method for simultaneously twisting and drafting nbrous material; delivering the material in the direction of its length at a xed speed at one point, engaging the material at a second point spaced from said one point and contmuously twisting the material at the said second point, and intermittently driving and stopping the material at said second point to impart a longitudinal vibration to the material being drafted, the-average speed of movement of the material at the second point being greater than the speed of movement thereof at the said first point, whereby the material is drafted during its travel between said points.

13. In a method for simultaneously twisting and drafting brous material: delivering the material in the direction of its length at a iixed speed at one point, engaging the material at a second point spaced from said one point and continuously twisting the material at the said second point, and intermittently driving and stopping the material at said second point to imparta longitudinal vibration to the material being drafted, the average speed of movement of the material at the second point being greater than the speed of movement thereof at the said rst point, whereby the material is drafted during its travel between said points, and there being a plurality of the said drivings and stoppings of the material at said second point during the length of time required for a predetermined portion of the material to travel between said points.

HERBERT REINICKE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 519,491 Baker May 8, 1894 647,138 Holmes et al. Apr. 10, 1900 Number Number 4 75,856 128,588 527,447 230,880

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