US1808415A - Twisting machine - Google Patents

Description

June 2, 1931.

J. JULIA I 1,808,415

TWISTING MACHINE Filed Jan.l 5, 192g.

Patented June 2, 1931 UNITED triarr-s PATENT oFFicfi:

' .rosen JULI, or BARCELQNA, ASPAIN' TWISTING MACHINE Application filed January Hitherto most :of .the types ot twisting machines for the purpose of vtwisting.threads .of textile fibres,l present .the .important-,dis` advantage ofsnotpossessing means for volun- `5 tary oi'k automatic arresting-of the individual spindles, and where such means are provided ythe application is accompanied by important "1l vidua-l, voluntary or 'automatic arrest of the spindles i-u' continuous twisting machines, in .which these latter are moved bycords, bands, `gears-or by friction devices, is accomplished,

rthevends ofthreads'o'fall textile Ilibres. The `stoppage is eiiected with complete independence .et the spindles in relation 'to one another, and Without the arrest 'beingdzue tothe `slidi-ngot any one element .upon another, but simply by the disconnection of lthe spindle from the corresponding drivin-g pulley, the two elementsv remaining 'thus from that momentycompletely independent., By such means thefarrest et ftliespindle is produced automatically on the ending Oron the 'breaking of any one of the 'threads that 1are being twisted, in :their course from the rack where they are supported in ythe lform of bobbins,

feeding icylinders. The stoppage also occurs when :the twisted thread breaks in its course from-,the feeding` cylindersrto thespindles. Itwifl'l be understood that it is .possible t0 effect the arrestofmovement at any moment and always with one spi-n pendentot the others. i

In all such cases as 'indicated above, the arrest ot 'movement is'leiiectedby the disengagement of the spindle: andthe corre- 'spendingv driving '.,pu'lley, which lup 'to that nmoment 'have been connected to rotate together, 'these two elements being .rendered completely independent after the said dis- 'engagemenawliereby the spindle comes to and yalso in machines intended for twisting balls, or `the like `until 'their arrival at the i le completely indei `5, 192B, Serial No. 330,582, and vinSpain, October "1D, :1928.

rest and the corresponding pulleyy continues .its normalrotary movement.

'The automatic arrestment of movement is obtained by 4the change :in lposition vof the K ythread .guides `which occurs when the thread 55 breaks or 'is used'up, the said guides falling .atrthatinstant to a certain extent and being pushedby small eceentrics o'fasuitable form, thedisengagement of vthe mechanism being elected thismovement. e 60 Then the arrestment of movement is to be V.produced Aas consequence of the exhaustion 'of the thread supply or ruptureot an-already twistedthreadfthat .is to say, inthe course M lbetween the-guidecylinders and thespindle, 65 this is eilected'by thel action of a threadguide lever which in its turn releases the stopping mechanism. The lever may. also ybe operated byhand vat will, producing :the same effect e k upon the spindle. i Y y t lThe accompanying drawings represent by wayof renarnp'le .a construction according to the invention. y y e Y V Figure lis a side elevation partly in section, otmechanism applied to the operation 'i5 of a lbobbin spindle .of a twisting machine.

Figure Y2 is a detail inperspective ol a number of hooks for :the admission'ofthe ends er threads .cornespondingto those to be twisted by eachspi-ndle.- 1 o Figure 3. is' a detail of 4one ot the elements lillustrated in Figure .2 Vindicatedseparately for sake oi'fclearness. i

Figure 4 's-a plan ofthe for-lroperating` lever for effectingits connection.vv f ,Y Figure 5 isfafdetail on a larger scale of the connecting 'arrangement with `the' yparts of ,which itJ is constituted :slightly separated .from lone another for the sake of-clearness.

Figure 6 is la plan of acorresponding part 90 iof 4the'arrangement tor 4the engagement of eachspindle. y ,l As illustrated in the accom-panying drawings a supporti corresponds to the fixed part ;y

of the twistingmachine, vthis sup-port carry- 95 l ling .at 2 a rotary spindle which possesses, corresponding to the function of each spindle, an eccentric y3 Vvhaving an enlarged-part 4. At .5 iis a cursor arm which-censistsof two branches y Y' 6 and r7. The extremity of 'the branch 6 car- 100 p 60 catch 39; if? The ries the support 8 of a cylinder 9 serving to conduct the threads which are to be twisted upon each spindle; the said threads pass over another spindle 10 and over a pulley 11 before passing through the guide 12 and arriving at the twisting bobbin 13. These threads are indicated by dot-and-dash lines upon the drawing.

The branch 6v of the cursor arm 5 extendsin 10 aI downward direction by meansof a part 14 which tends to be drawn in an upward direction by the action of a spring connected at one extremity to a hook 16 integrally A provided on the part 14 and at the other extrem 15 ity to pin 21 on the fixed part 1 ofthe machine. rlhe part 14 is provided with a head 17 upon which is mounted a step 18 which engages a plate 19 integral with the fixed part 1 of the machine,and the arm 5 may be per- 20 ,mitted a small sliding movement 'as it is supported only the plate 19.

' vThe branch 7 of the cursor arm 5 `atits extremities thread `by means of projection 2O upon comprises form of hooks at their upper part andl at their lower part they are fixed in the corresponding catches 25,26, 27 and 28 which turnpfr'eely upon the spindle `29, and hang Vunder 'their 30 l own weights upon the support 30('Figures Vl and 2) unless the tension of the threads which respectively pass through the hooks of the v'rods 21, 22, 23 and 24 compels them to become raised. The operation is such that whenon'e or a number of the catches 25 26, 27 or 28 he "41.0 `tension of the threads whichpass "through their hooks, these threads being those which "are to be twisted together. p The fixed plate Y19 comprises integralcheeks "`31'which supportthe spindle 32 of a lever 34, 35 which Vat one extremityk '#34 carries the thread Vguide 12 and at ,the other 35`carries an abutment'36 adapted to` bei controlled in its position'by means of the-screw g fThis abutment36 serves asitheisupport of 'H50 the rod 38, jointed tol the Vcat`chl39 (Figure 2),

placed ,upon the same axis as: thejcatches ..25-28 so that as longas thesupport continues, the catch 39 is raised from itsse'at upon the plate 30 (Figure-11), but if the abutment 36 descends, the rod38-descending also, the catch 39 falls upon the'plat'e30 and undergoespressure from the projecting part 4 ofthe eccentric 3. This occursbe'cause the /frod 38 is'joined to the small 'arm-39" ofthe part 14 Yis connected at its-lower-e'nd `to a double crank 40`which at its lower 'end is connected to a rod 41 by which'it is-joined "to the'angle'piec'e 42 fixed upon the's'tationary support 43,1supporting abobbinsueh as 1:3

guide rods 2i, e2, es,Y 25 and 24 (Figure 2) which are. made in the andthe parts which are hereafter referred to. The rod 41 guides the'crank 40, the part 14 and the arm 5 to which is firmly jointedV the part 14 in their upward'and downward movements. At 44 a fork lever 45 (Figures 1 and 4) whose pivotal axis is at 46, is mounted upon the part 40. The other extremity of this lever isA connected to a second fork 47 provided with two freely mounted conical rollers 48, 49 (Figure 4) whichare supported upon a conical cap 50 (Figure 1), the rollers being indicated in Figure 1 because V-vone .part of the fork is removed, and the other part isv disposed behind the axis of the bobbin. The cap 50 is-able to slide along `the axis 54 of the spindle.

L Upon the supporting frame 43 on which ismounted vthe mechanism of the spindles,

1s mounted at itsupper part by means of a bearing at 55 leaving apcertain amount of annular space in order that the lubricant, may rise between it and the sleeve 51; the'-l sleeve 53 itself is provided with perforations such as 53 to allow passage for the said lubricant towards the spindle 54. jThe spindle 54 of the bobbin' is not adjusted-exactly `With the 'sleeve 53, that is greater part of their length theparts are not infcontact, whereby the usual wear ofthe bobbin Aspindle is avoided." This spindle lfunctions normally, althoughit may be subjected todeviations the driving element, by'reasonof the freedom of movement `afforded bythe semi-spherical head 55 provided at the upper part of the :sleeve 53, andwhich will' adjustV itself in the ,'85 53 which carries the`l tofsay, upon the? `1o0 in relation'to the axis of hollow semi-sphericall seat-in the upper part of the supportingsleeve 51'. VThis action is permissible in view of the factthat' the coupling-.between thespindle and the driving elelment, for whichprovision is made in the cylindrical casing 63 of the pulley 56,7a'shere# -ina'fter described,i's elastic, as that is to say,

`the's'aid coupling renders oscillation of the spindle of'11o-importance.V f

61 and 62 are smallsprings which are su portedvon inclined planes provided at the lower part of the' sleeve' 53. These springs `actto balancethe sleeve 53 in, position and 1 to ensure .the satisfactory seating of the head 155 upon its seat and to absorb the vibrations which mayl beproducedin the spindle. The pulley 5.6 which engageswith the end- ,less beltwhich drives the spindlel is shown in section. This pulleyis mounted on races of ball 4bearings 57 and 58v their cones 59 and 60 beingtixed firmly tothe sleeve 51'. The' lpulley 56 isfixedlirmly toa cylindrical cas- .,ing63formed 'on the interior with recesses such as'64, which engage mutually with profjections on a gear wheel"65,ffthe`wheel turns i of cork, or 'of Vany other elastic material,

Vadapted to establish a good frictiona-l contact. `A wheel or disc 67 (Figures land 5) is .firmly lixed to the axle 54, and contains orifices such as 68, 69, .70, which are penetrated freely by rods such as 71, 72, Aand 73, `fixed -in another disc 74 which is lable to slide right along the same spindle "54. The Arods (71, .72, 73 etc.) pass freely through lthe cen- .tra-l orifice (Figure 6) yof the gear wheel 65 4@n the rods 71, 72, 73 (Figures 1 and '5) :are mounted compression springs such as 76, -7 8 (F igure-5) which are-supported-atone end by the disc 467 and at the'other by pins such as 79, 80, which cross the rods 71, 72, 73 at their upper parts. The action of these springs is such that the discs 67 and 74 together with the gear wheel, form a coupling, strengthened by the elastic pieces such :as'66 (Figure 6). This coupling vhas `its parts dis: engaged, ,producing the disengagement of gears, on depression of the cap v5C),- because this cap, depressing the heads of the rods 71, 72, 73 overcomes the Aactionof the springs 76, 77, 78, causing the depression of the disc 74; yand the contact or coupling pressure -of vthe Vjoint or .the gear wheel 65 with the disc -67 and 74, diminishing, the rotation fof the said gear Wheel .remains free and independent of the casing 63 andthe pulley 5'6 stilljremaining free on the axle 54 ofthe' spindle.

The mechanismfunctions vas follows: The threads which are lto be twistedon each bobbin being passed through the hooks-corresponding to the Irods v21, 22, 23 `andv24 (Figures 1 and 2) as well as on to theconductingcylinders 9 and 10 and the .pulley 11 (Figure 1i) and dash lline 81, next the bobbirn 13. If in the working ofthe machineone of the threads is broken, the corresponding guide e. g'. 21 becomes free of the thrust or tension of the thread a-ndV the catch 25 .falls under-its. own Weight on to the support 30. The jutting lembossment 4 tof the eccentric 3 pushes the said catch-,25 vand displaces the arm 5 from yright to left, the step 18 vfalling out'of its supports With-the Vplate 19, so ythat the arm 14 vr-ises under the'action of the spring 15, andthe lever 45,A because ofthe joint'44 and of .its-pivot46, vmoves so `that the-conical rollers 48,49 (Figure 4) depress .the cap 50 (Figures 1 and 5) upon which, the axle 54 of the spindle 'is put 'out -of gear by the Abearringof the Icasing 63 and hence Ithe pulley 56, which receivesmotion from the endless Vbelt as has been explained is consequently stopped. l At the same time, following-the displacementofthe arm 5,-'the cylinder 9 vbreaks contact Withthe roller 10from 'which it receives its :motion and consequently the supports of the spindle 13 remain susgpended. f

If the already twisted thread Vbecomes Vbroken between 4the roller 10-and ythe spindle 13, the arm ofthe vlever 34 will befreed from 4the tensionlof the said thread, and the Ylever v34, 35, which when functioning normally is in equilibri-um, loses this equilibrium, the abutment 36 descending. rilhen the rod`38 remaining free, the catch 39 (Figure) yWould fail on the part 30, being pushed by the pro- -jection 4 (Figure 1) of the eccentric 3, so that .they would produce-as we have said, the

'higher displacement of the arm 5, the disco'nne'ction'of -the step 18 from the part 19, the Afunctioning 'of the lever 45 and the pushing 'of the cap 50 -by the conical rollers 48,149 (Figure 4) the mechanism functioningrasidescribed 'above and thus the spindle 13 (Figure l) is. stopped.- Y

@nce .the broken'threads have been mended 'the Workman replaces the arm 5 into its `vvorking position and the machine continues nor-V Y rThe disengagement of the above described gear, which as yhas been seen is automatic, is `e'lfected in order to obtain the stoppage lof leach bobbin of the machine at will and to do vwhich it is only Vnecessary to "move by hand the arm 5 `orrthe lever 34, 32 and 35.

The lubrication of the casing 52 and of the Vaxle of the-spindle, takes placefby meansofa the axle -54 of the spindle, the coupling of Y .p85

reserve chamber 82 (Figure 1) Vwhich communicates by a 'tube 83, bent into the bottom fi of the-said boX `52. The lubricantbesides rising up the axle 54, the slee-ve v53, and the -c'asing`51 natu-rally, risesstill more under the action of `centrifugal force developed by the rotation of the-axle 54 of `the spindle and sov :arrives at `the cap 55 yand from there, by the openings existing :between the various parts Vofithepuflley 56, the sleeve 511,*and the casing 64,'t'he said lubricant arrives at'the ball bearings 57, 58. The tube 83 stands inside the vvessel '82 and receives ,the lubricant Aby means of a Wick 84 in a fine jet in spite of which the llubricant vis accomplished perfectly.

I claimtf 1. 5L-driving `mechanism for the spindlesl of twisting `machines for twisting threads, permitting freedom offlaterafl inclination to the said spindle, comprising a'supporiting .sleeve for vthe said spindle, a vdriving ele-N ment rotatably mounted upon thesaid supf "porting sleeve, a bearing sleeve in 'which Ythe :ax-is of the spindle AV:relatively to the'aXis of mechanism, substantially ashereinbefore dethe driving element', lsubstantially as here?v inbefore described.

said spindle, rods carried by the said slidable disc which penetrate holes in the iirst disc, the said discs being concentric with' the driving member which is provided of annular form, a driven member slidably`engaged with the said driving member and capable discs upon the said spindle, springs concentric with and engaging the said rods. for pressing the two discs relatively vtowards each other to engage the said drivenmember. and a slidable member mounted on the said spindle adjacent the ends ofthe said rods to apply pressure upon the said rods when the discsare required to bedisengaged against the actiono-f the said springs, substantially as hereinbefore described.

3. A driving mechanism for the spindles of twisting `machines for twisting threads according to claim 2, having a cylindrical driving member with the `inner surface formed with a plurality offrecesses in'a direction parallel with the axis, and a driven member formed on its peripherywith a. plurality of teeth toengage the recesses of the said driving member, the said recesses and teeth being so formed as tofperinit'relative inclination of the a'xesot the.V driving and' driven members in operation of the driving scribed.`

4. A driving mechanism for thespindles of twisting machines for twisting threads according to claim2, having a cylindrical driving member with the inner surface formed with a plurality of recesses in adi-V rection parallel with the axis and a driven member formedon its periphery with a'plurality of teethYto-engage the recesses of the said driving member, the said recesses and teeth being` of a form to permit relative iniclinationl of the axes of the driving and driven members, and said driven member beingprovided with a plurality of elastic projections to engage the discs mounted upon the spindle, substantially as hereinbefore described.

f 5.v A -driving mechanism for thespindles of .twisting machines for twistingthreads,

'rotatably mounted. upon the said supporting u sleeve, ya bearing sleeve niii-'which 'the spindle is rotatably mounted, the said- 'bearing sleeve being closed at the lower end and formed with a semi-spherical head which is received in a vseini-spherical hollow in theupper end N of the supporting sleeve, thefsaid bearing sleeve fitting loosely within the said supporting sleeve so that its axis may be inclined relatively tov the axis of thev supporting sleeve, and a coupling between the said spin- 'dle and the said'driving` element comprisingcoupling plates partly carried by said' spindle and partly engaged by said drivingv element, thesaid engagement permitting inclination to the axis of the spindle relatively to theaxis of thedriving elementffsubstan Vtially as'hereinbefore'described.

Yof inclination relatively thereto, the said driven member being disposed between the 6. driving mechanism for the spindles of twisting Amachines Vfor twisting threads,

permitting freedom of lateral inclinationto the said spindle', comprising a supporting sleeve for the said spindle,A ball bearings exterior `to Vthe said supporting sleeve, a 'driving element supported by the said ball bearings, a bearing sleeve for the said spindle closed at the lower end andforniedwith a semi-sphericalhead, said bearing sleeve being concentrically disppsedrand loosely fitted within the said supporting sleeve with the semi-spherical head received intoa semi' Vpartly carried by the said spindle and partly engaged with the said extension of the driviitting of the bearing sleeve within vthe/supporting sleeve permitting inclination of the sleeve, a bearingvsleeve forthe said spindle closedat the lower end and formed with a spherical hollow at the upperend ofthe 'supporting sleeve', the said bearing sleeve being loose vwithin theVV said supporting sleeve,

springs seated within the saidsup-porting sleeve'and engaging inclined seatings upon the bearing? sleeve so' disposed that the springs-tend to press-'the be'aringjsleeve downwardly within the supporting Vsleeve whilepermitting lateral yinclination of the ling element, the said engagement and the --sleeve for thesaid spindle. a drivingeleinent Yrotatably mounted `upon the vsaid supporting semi-spherical head for reception in a seinisaid bearing sleeve relatively to the said supporting sleeve, and a coupling between the said spindle and the said driving element comprising coup-ling plates partly carried by the Said spindle and partly engaged by the said driving element, the said engagement permitting inclination of the axis of the spindle relatively to the axis of the driving element, substantially as liereinbefore described.

JOS JULIA.

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