US1852827A - Tube mandrel chucking device - Google Patents

Description

April 5', 1932. A.. G. SMITH '1,852,827

TUBE MANDREVL GHUCKING DEVICE ATTORNEYS April 5, 1932. AA. G. SMITH TUBE MANDREL CHUCKING DEVICE 5 Sheets-Sheet 2 Filed Dec. 27, 1928 ATTORNEYS April 5, 1932 A. c;` SMITH TUBE MANDREL CHUCKING DEVICE 5 Sheets-Shet 3 Filed Dec. 27, 1928 ATTORNEYS' A. G. SMITH TUBE MANDREL CHUCKING DEVICE Filed Deo. 27,' 1928 5 Sheets-Sheet 4 5 Y E N R O 1. T A

April 5, 1932.

April 5, 1932. A. G. SMITH T'UBE MANDREL CHUCKING DEVICE 5 Sheets-Sheet 5 Filed Dec. 27, 1928 ATTORNEYS f .ALBERT 330mg y1.0111311, QASSIGNQRSLB ,MESNEASSIQNMENT TIDLTBE Y :mmm RUBBER.CQMPANLLMQ12FWlLmNGTQmDELAWAREA COREORATIONOF,

f DELAWARE y @punition illeafpecembezz, kam/s.` fserialgfm.. 3285701,

My said invention relatesfhojimpnovemrens in rtube mandrel @bucking ewp-ayla'mlsfor Shaving :applied atlleretoga, ffaibnc- Wmpping.

HeTetoore, =so' far i as I zamawsure, has beenfcustomary#Coplaoefthemandels Gallery ngthefuncured tube-f Stoek,;fndifd1mllfy on; Thisrequired:stantngandetpping the' :all

` invention-includesfthefnovehfeatunesmi:0am

YStrutron and :arrangement nd .mmbinatn jacent-pt@ and e f-Fgg im; detailfplaai-viwofith mmm-1 refs With-the pick upmember shownid'ethed e mandrel actuating parts hereinafter described. Above the shaft 8 is located a turretcar'rying shaft 16 journaled in suitable bearings 14 and 15 in the main frame, to which shaft 16 are keyed the turrets or frames 17 andk 17 f Oneof'these turrets17k i rhas fast thereto a spur gear ring 18 which entail undue torsional strain byk driving bothv n turrets from gearing at one endV only`.f

guides or recesses 17 a, Fig. 5, (three eing meshes with and is driven by pinion orl gear y13 on the shaft 8. Obviously the other turret 17 fcouldbe similarlygeared toy sha-ft Sif the'length of the machine was suchk'as to Theturrets 17 and 17 and mechanism carried thereby being identical, a descripvtion in the singular will apply to both. Each turret is provided with aplurality yof radially arranged and equi-distantly s aced shown asa convenient number), adapted to receive the ends of the poles or ymandi-els,

the' turrets beingf'provided a'djacent'these y recesses with -mandrel pick up hooks y19 adapted tov pick up the mandrels inthe ymannery hereinafter' described. l

yNear thebottoms of these recesses are located stud shafts 20 (Fig. 5) rigidly ailixed to the turrets, on which .are vjournaled rubfber' faced rollers 21, 21', whichproject beyond the wall or walls of the recessandl serve as" mandrel lsupporting and driving rollers and which I term for convenience, cradle rollers.` 'l 'f *f' VThe driving of these rollersisefected by mounting them on sleeves 22 whichy carry sprockets v22a,-all of the sprockets offeacli turretfbeingdriven by afsprocketr chain-23 .'Fig. 1 which in turn is driven by af'central sprocket k24 journaled on shafts 16, as shown in Figs. 3 vand 4.

pressing themandrels against- thefdriving cradelrollers 21,21", with sufficient, force to ensure their; rotation by frictional contact againstthe resistance offered bythey tension 1 on .the tape, and also that the recesses shall befuno'bstructed at the mandrel receiw'fingandV discharge points. y

kTo accomplish this7 vI prvidl the follow- *ingmechanism:` l y H l, Each turretalso carries'vadjacent eaclrre- `f"cessand on opposite sides thereof studs'i26 n fand 27 (Figs. 5to 9)V on which areffulcrumed frespectivelylever arms'28 and 29 which-car#v 'y itat ,theirr free` ends; rubber covered roll- V ers301and31, designed, .when the arms are swungy inwardtoengage the mandrels and ypress them against the driving orY cradle roll- Vers, while when swung outward, they leave`v the recesses free and unobstructed.

Lever arm 28 has rigidly connected to its supporting shaft a lever arm 32,Figs. 3 and 5, the two arms constituting a bell crank lever, and said lever arm 32 is provided with ay roller y33cooperating with a stationary cam 34. An adjustable link 35 connects lever arm 32 with lever arm 29, fast onv the shaft carrying lever arm 29, and a tension spring 40, attached at one lend to lever arm 32 and at the other end to turret 17, acts to cause the leverl arms'28 and 29 to be swung towardsy each other for causing ,the rollersfcarried thereby to press the mandrel ends against the driving or Vcradle rollers. The stationary cam 34, on which roller'33 bears has a concentric raised part 34rdV terminating in in-y wardly deflected cam 'faces a and a', these respective parts being so arranged that when a pair of recesses 17 a have reached a position where they are over the rails orreceivingf runway43, the rollerf33 rides'up the cam face'aand the grippingrolls aref swung out clearfof the recessesto allow the wrapped lnandrelsvtoroll out ontov and down the receiving rails 43, Fig.y 1,' and onto table 43a fromwhich they may be removed as desired.

Asthe turrets continue to rotate, the grip- Y ping or pressure rollers are held open and when thepiclrV up devices or hooks 19 reach thefsupporting rails 41, they engagethe ends of 'the' foremost rmandrel as shown in Fig. 1. Further rotation of thefturrets'ina clockwise direction,'Fig. 1, brings the recesses towards an vupright position whereupon the mandrels drop intoithe recesses and rest on the cradlef rolls.v *e l ff Further movement of the turretcauses the rollers 33 to leave the high lpartf13a of the .cam and move inward along face a which permits the springs 40 to Vswingthe-lever's 28 and 29 inward -to press the rollers 30 andy 31 n against the mandrel and the `lattery against nu thevr driving rollers as rshown at the topof Figselrand 5, -whereby the mandrel is rotated -y"The-parts are so'arranged that the rollers 33 travel clear ofthefcam when passing down fon the right hand sidethereof asshown in lFign3.A n, f

n is intended that fhetndsaof ,thrapies shall be applied when-*the mandrelskreach approximately the rposition above shaftl andY the( ywinding vbe performed while the -mandrel is passing `down in front'o` and inward away from the operators aslthey stand f y in'frontxof the machine which would'be on the "right of Fig.` 1, the speed of rotation of the mandrels relative -to their orbital movement n being ysuch that there is ample time' for` the f V Winding of the tapes while the mandrels are l travelingfrom gripping position to'thedischarge'postion. v l i "l1-.sae

a wsenwdajmpra ingressi-astmapf the tubel and alsol to prevent/any air''romenf y #any eWrapping. The i present? 'machine-fis thereforeQdesignedso itliat -vvl'iilesonecperator operating upon one mandrel Yat a time. 'iT l1*aveonI1d:Y htliajfivvh -15'ff'come'#experiencedgit-eis'nct necessaryl'fto-y 'stop y :fer sta-'retire machine/fl "lilleoperators`are-able i s *to starti'the ends-f the' Ytape"simn'ltsnieonsly,

eivliixle'i'the inabili-nef r l n 'K with operatorscwhoarelesslsliillfnl orwvho necessaryfor thenrto stop the machines when theyl start the ends'of their tape. y. My preferred form of starting and stopping means comprsesatreadle board eX- v machinefand carriedby depending levers i6 artlculated 4to the. main frame at 46a, the

board being urged. towards .theroperators or glit,-Fig.- vl,{loy spring means indicated in readiness :fory Winding. y A y y yOfcourseyeven when the operators are n Ymay arise which 'necessitatefstoppingby;one f or the other operators, and the yarrangement kshown permits eitherto stopfthe rdevice at will Without moving fromghis position.

It is desirable 4to 4keep the unwrappedtnbes 1 separate from reachfrclier While on tlie'rails or runways ll andto thisfend, lprovid-e escapement levers 42 which are-si1nply 'two armed levers havingtheir anterior arms .42a heavierthan Vtheir posterior arms 42?), so that rsaid'arms 426 vtend to stand npwardin T65 positionv to'hold they next'sncceeding mandrel turning. Hon/fever,

' tending across the front'othe. baise of the ved, the reverse open' V operators` would hadv his tape Vsut'iiciently skilled tofoperatelwhilethe ina-kry y chine 1s lnvcontlnuous movement, .occasions-f f thevpatliy 'of tlieinandrelsf yVJhenfthefirst .mandrel TOUS `down tlief'runway, `it succesf sively depressesgall the arms .425 nntilitv' y ,Y reaches the' position :adjacent the turretsf i whereit VWill Ahold fsaid rarm 425 depressed vzmdtlie correspondingarm 2d elevated-in Y l y Y itl-remlltopss,themandrels-against'tlle `cradle i ses? ' f bviously-,fthelvai 'ons ffturfrets; fandg cradle",

be Sarrangedso as ,to -contact :with #the VI nn covered ends of the mardrels or polesjsovas noty to? dama"A p parts, yrunway rails, A fand 'presser-rolls; Weill'd se? the-rubberSatama-4eme it; freefgforrpjl-,h pplcatibnpf therwmpping rmedintegra'l f segmental 9m adapted tof be bolted f or riveted to f yinvention', what he class defscriloedcom-` pacedrotatalo'leY turrets, 1` y carriedbylsaidfturretsf ceding 'Imandrelstor l'sai'd cradle; @j

Irollsnneans@for 'pressing the @Inandr'e ends having `mandrel i iendlfreceiv-in jirietsandfofrot j-'forjfeedi g roller vpresser meansv for pressing thehin'am pdreseagainst the' Cradlerllswthime operatin gl'saidroller pressen means.

hara'cter des tatableturforati-lei gffineans :for *.{pressing theV mandrels there# cagar-rist,@andmeans fiforrotatm o fands driving? 'saidc'radlef rolls.

starai? Y' said :necessesy fswin'ging Y `arnls 1 adjacent@ 'said ,irecesses, presser rollersjc arlried by' sai'd arms, 1 land meansfiforflswingingsaldQarmsftojcanse..'

fthem top'ress the mandrels i again/st the cradlerollslor to be moved fromfalinenint rvwaitin-the;recesses accordingjto"the-directionr Y i rlbed 'co1n. f

, of :movement of the: arms. f

' E5. f ipparatus otithe" class fdesc V- prisingapairiof; spaced rotatabletnrretshav- .fing mandrel Y cansa: saidturretsand wingingarms aad-jacent Afsaidk e'cessesg presse n n and means forfswmglngfsaid armes-to cau g receiving recesses, rotatable`V` Y adfle roll adjacent the-inner ends'ofvsaidj ansV for, feeding mand reis-"ftey s ff-45 -f presser means for cooperating with the manrolls@A or to be moved from alinement with 'the Vrecesses according to the direction yof movement of the arms, comprising allever arm operatively connected withjsaidk swing-A Aingpariiis', and a` stationary cani'ffcooperating y with said'leveiarm.

; vApparatus, for tlie'purp'ose described Y comprisingya pair ,of vspaced rotatable turrets! 'eachy having a plurality of radially arg v rano'ed mandrel receiving recessesrotatable cradle rolls adjacent the innerends of the recessesy means forrotatingtlie turrets and e l cradle rolls, `means for, successively positioning mandrels with their endpo'rtions seated in the recesses, atv one'point in the travel of ,y f-the'turrets, ymeans ataiiother point for r`e`ygV r'ceiving dischar ged mandrels, presserV means if for pressing the mandi-el ends against the cradle rolls, and means for causing said presser means to beinoved clear of the krecesses at l thefreceiving and discharge points,and to cod operate with'rtlie mandrel ends between said fnected;

y ,points. f f ,Y Y Y,

y 7; Apparatus according vto claim .6 proyvided with (starting andl stoppingrmeans andmeans for swinging said arm away fromk the presser rolls duringa portion of the rotation of thegturret ito permit entrance of ther mandrels intothe :recesses and vdischarge therefrom.

i, Y c, L470 f 11.*V Apparatus of the class describedcom? prisingirotatable. spaced turretshavinglmancries,

12.y Apparatus ofthe class describedy comi j prisingk a ypair of`r spaced rotatable turrets,

cradle rollsrotatably carried by said turrets,

means for pressing mandrels against the.

ciadlerolls, and means ,for rotating said turrets and cradle rolls, v 4 n s In testimony whereof I atiix my si ature. ALBERT G. S 1TH.

capable of operation by a plurality of'opi erators from different positions. 8.', Apparatus according to claim 6 having starting and stopping means includingy a movable treadle boardextending the entire y length ofthe machine andoperativelyconf 9. Apparatus for* theypurposedescribed" comprising a pair of-rotatable turrets journaled; to rotate about a common horizontal c axis, and provided with a plurality of alined "radial recesses, means for rotating said turf rets, mandrel supporting means adjacenty the yupwardly moving portions of said turrets,

pick upy projections carried'by said turrets fk adjacent the mouths of the-recesses, mandrel driving rolls carried by they, turrets having .v ytheir peripheries projecting within the space ,N n

dened yby the walls of the recesses, means' for `rotating said driving rolls, anti-friction ,drels, and means for causing said presser y'means to engage themandrels onl the downwardly moving side of the turrets and tocbe Vswung clear of the recesses on the'l'ower and n Y rising sides for'discharge of mandrels from s recesses and Vreplacement thereof with fresh kmandrels.`

, 10. Apparatus of the class described comprising a shaft, ay pair of turietsfast thereon,

, f meansfor driving the shaft and turrets, said turretshaving each a plurality ofradial mandrelreceiving recesses, mandrel rotating rolls y y e positioned to engage mandrels-when located `l Y 6o -i'nsaid recesses, driving 'means connected v'to j all ofthe mandrel driving'rolls,`flever arms j 'f c articulatedto said turrets andcarryingpre'ss-z' i Y Y civrolls arranged to swing towards and yaways from saidfdrivingjrolls, spring means tend-v ingifto'urgek y,themtowards the .driving rolls,

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