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Publication numberUS2668675 A
Publication typeGrant
Publication dateFeb 9, 1954
Filing dateAug 6, 1948
Priority dateAug 6, 1948
Publication numberUS 2668675 A, US 2668675A, US-A-2668675, US2668675 A, US2668675A
InventorsHenry J Wolfe
Original AssigneeNat Gypsum Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Winding machine
US 2668675 A
Abstract  available in
Images(10)
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Claims  available in
Description  (OCR text may contain errors)

H. J. WOLFE WINDING MACHINE Feb. 9, 1954 l0 Sheets-Sheet l Filed Aug. 6, 1948 wm .wm mmm um o o G SN A (Qk ANN tkm QR Nw .mm mwN mmh kh k mmv xn. AN? Nm R G\ o Nvm l bmw b o mMNxY Q @A u@ NWN W NN @NN @NNN H. J. WOLFE WINDING MACHINE Feb. 9, 1954 l0 Sheets-Sheet 2 Filed Aug. 6, 1948 H. J. WOLFE WINDING MACHINE Feb. 9, 1954 10 Sheets-Sheet 3 Filed Aug. 6, 1948 @NN www mQN/u @NN .mm www ma Nw N m H. J. WOLFE WINDING MACHINE Feb. 9, 1954 10 Sheets-Sheet 4 Filed Aug. 6, 1948 @u A@ m RQN @d NAR p go Feb. 9, 1954 H. J. WOLFE 2,668,675

WINDING MACHINE Filed Aug. e, 1948 1o sheets-Sheet 6 p y ma ZZZvaeys. 771- H. J. WOLFE WINDING MACHINE Feb. 9, 1954 10 Sheets-Sheet 7 Filed Aug. 6, 1948 INVENTOR. mgm; Wr

H. J. WOLFE WINDING MACHINE Feb. 9, 1954 lO Sheets-Sheet 8 Filed Aug. 6, 1948 z W mf Werf/S- H. J. WOLFE WINDING MACHINE Feb. 9, 1954 lO Sheets-Sheet 9 Filed Aug. 6, 1948 IINVENTOR. Y Wk l uw@ zzvggs. W

llllllllllll l lili.

Feb. 9, 1954 H J, WQLFE 2,668,675

WINDING MACHINE Filed Aug. 6, 1948 lO Sheets-Sheet 10 INVENTOR.

@MQW

Patented Feb. 9, 1954 UN [TED FIGB f'W-INDI-NG MACHINE jf; Henry J '.1 WolfetAkron, N. Yassignorfto National Gypsumf-.Gornpanm Clarence Center, N. Y., a

corporation 4offNewvYork 6 f. Claims.

y"This I invention relatesf toi improvements: in winding machines, Aand-moreparticularly .tomachines of' the typeadapted to convert vafcontinu- -ously-traveling strip or #web intov a. plurality of relatively small consumer` rolls.

The Vprimary obj ect of4 thevinventionis .to Vprojvideamachine'which automaticallyforms a web into a succession of individual rolls, Ieach of which Vhas a'predetermined lengthof'web woundhtightlv Aaround a core-With-no attachmentlof ther inner orvleadingend ofethe'vveb to thefcoreand' with the outer-or ltrailingend of the web=secured to i the r'oll by a strip `lof -gummedltape.

'{-Another-object^ is ige-provide such aA machine inwhich themeans or'l -instrumentalitiesfem- 'ployed to performthe various functions* required f to produce such individual--I -r'olls automatically,

successively l and without interruption; 'between the'production'of successive-rolls, vare relatively simple.

"i -To lthese-*variousA` primaryendsf-andl others Lherein/af ter appearing; the invention 'furthercontemplates theprovision/of certainnovel `structural and mechanical features" and- 'combina- Itions'hereinafter describedeand illustrated :ini the attached drawings `constituting- `oneform` of the inventionfas reduced to practice.

`#While there is no intention foferestrictingthe present invention'to theprocessingior handlingfof x,any specific type of web materiali the embodiment disclosed is particularlyadapted `to lthe-processing fiof a Lrelativelystii paper etape; such asiseused in tape ijoint systems.v The so-calledtapefoint "svsternf-forA concealingr joints offgypsum iwall- E:board to produce smooth; seamlesswalls rand 4--'ceilings" ready fori decoration isy a 'widely-used practice. In such a tape joint system it-isthe -practiceto fill the joint between 'boards'with a cementg-press apaper:tapewhichmsually has a #perforated design-"into the vcement `and :allow the cement to dry; Thereafter asecondcoat'ofce- Vment is applied to conceal the tape A'and is'u'sua'lly sanded after thoroughly Ydrying toA *provide* an "inconspicuous *joint 'v- In the attached" drawings #Figi lisfanfelevationai viewioffthe rightside,

( Cl. .42 756)l i :'21 2 :Fig: 5,. is ar-fragmentary elevationalvview-yon an .'enlarged scale,xof .the'fleft side .of the .front .para ofithe: machine;.shownin Fig. 1.

'ri'ligf.` 6.1m alqfrgamentarysectional.viewfon a slightlyfenlargedscale, taken on line 6 6.V Fig. 5. :1 Fig; 'Lis a;fragmentary.elevationalview, onan enlarged scale, .1of theY latch-device illustrated A. at thelowerleftrof Fig. 5:.for actuating aone revolution clutch,i.such,device being. shown in a latched 10 condition fin: Fig. 7.

.a Fig; 8.,.is asfragmentarylviewlsimilar.to rFig. 7 and..l showing: thealatchgrdevice1in. `an-unlatched condition.

.i Fig. 8A1is azfragmentary;viemsimilar to Eig. 8

yandfillustrating-Lthe;condition of; the-.latch ,device immediately prior ato. relatching.

Fig. 9.; is aiseetionaLvew `taken on.:=.line91. 9, iFig. '7.

t, "Fignl .f is axfragmentary. perspective 'view lookingtoward therear of themachinefof the one :.revolutiomclutchiandassociated parts and actuated by the cam latch device` illustrated .inFigs 7 --and 8.,:.thisv clutch .being'shown in aidisengaged or inoperative condition.

Fig.'1'1z is al fragmentary end;elevational view of the-device shOWninfFig. 10,;.ta-ken. from. the .-.far :side .of .the device as viewed'in FigalO.

- Fig 12.f. is a A'fragmentary .sectional view .taken transversely. of the; machine: lookingtoward.4 the.

. :mova1fof a fullyfvvoundzroll therefrom.

:Fig u13zis a'vfragmentaryzvertical sectionalf'view -vtaken :on flinerl 3-'-| 3;'-Fig. 12.

-Figf14 v is a fragmentaryelevational.view similar to Figi. 'l2-hutch a-slightly smaller scalefand 40 showing particularlythe .device-for removing a fully woundtape" rollfromthe mandrel shown sin AFg..'ff12,'suchdevice being-illustrated in its rfoperative :positionaf-tei'having removed afroll from the mandrel but before the device `"nas-"returnedfito its normally inoperative position.`

Fig; =14Ais'=. a" fragmentary vertical -secti'onal view taken on -line MA--MAi Fig. 14.

l' fFig. 15 is a fragmentaryv elevational view similar to Fig-.v'14vvith some`| parts'fremovedand showing -.50, .in partial. sectionfthe i. device forsapplying a core on a mandrel.

Rigi-1d is arfragmentary:verticalzsectionalview f: Vtaliennon fline 21| `6`+| 16., Eigal.

,f Fig.. -1-7 Iis aitragmentaryffsectional "View taken faatransversely A.of .the ,machine looking; toward. .the

3 rear thereof and showing in elevation the device for actuating the roll removing and core applying devices illustrated in Figs. 14, and 16.

Figs. 18 and 19 are fragmentary horizontal sectional views taken on lines |8|8 and |3-|9, respectively in Fig. 17.

Fig. 20 is a fragmentary longitudinal sectional View, on an enlarged scale, through the paper tape guide press and cut off devices illustrated at the upper left of Fig. 2, the guide press device being shown in its normal position for guiding the tape to the upper front mandrel as shown in Fig.

2 and the cut off device being shown in its normally inoperative condition.

Fig. 21 is a fragmentary vertical transverse sectional View, on the same scale as used in Fig. 20, and showing the mechanism for actuating the guide press and cut oi devices illustrated in Fig. 20, this view being taken on line 2|-2 Fig. 2.

Fig. 22 is a fragmentary sectional view taken generally along line 22-22, Fig. 2l and showing a slightly varied relative position of certain parts.

Fig. 23 is a fragmentary perspective elevational view of the tape guard illustrated in Fig. 20 for initially guiding the leading end of the severed tape around a mandrel, this perspective viewing the tape guard from the left side of the machine and looking toward the front thereof.

Fig. 24 is a fragmentary view similar to Fig. 20, on a reduced scale, and showing the conditions of the tape guide press and cut off devices immediately following the severing of the tape.

Fig. 25 is a fragmentary view similar to Fig. 24 and illustrating the cooperative relation of the tape guide press and tape guard in initiating the formation of a new roll of tape on a mandrel.

Fig. 26 is a fragmentary perspective elevational -view taken from the same direction as employed in the perspective view of the tape guard illustrated in Fig. 23 and showing the mechanism for actuating this tape guard.

Fig. 27 is a slightly enlarged fragmentary vertical sectional view taken on line 2'1-21, Fig. 26.

Fig. 28 is a fragmentary elevational View, on an enlarged scale, of the gummed tape applying device illustrated at the upper right of Fig. 2, such device being shown in its condition shortly before being operated to apply a strip of gummed tape to a fully Wound roll of paper tape.

Fig. 29 is a fragmentary elevational View similar to Fig. 28 and showing the condition of the gummed tape applying device during its initial operation.

Fig. 30 is a fragmentary elevational view similar to Fig. 29, on a slightly reduced scale, and showing the gummed tape applying device in a slightly advanced stage of operation and particularly illustrating the operation of a gummed tape slacking device operatively associated with the gummed tape applying device.

Fig. 31 is a fragmentary elevational view similar to Fig. 28 and illustrating the operation of the gummed tape applying device in severing the gummed tape.

Fig. 32 is a fragmentary side elevational view of the lower part of the actuating device for the gummed tape slacking device, this View being taken from the right side of the machine and this view also being complementary to Fig. 30.

Fig. 33 is a sectional View taken on line 33-33, Fig. 32.

The illustrated embodiment of the present invention includes a frame 35 having a bed plate 36 at the front end of the machine and two transversely spaced parallel upstanding frame plates arranged above the bed plate 36, the right frame plate being represented by the numeral 31 and the left frame plate by the numeral 38.

The paper tape T to be wound into individual consumer rolls is obtained from a large supply roll 39 suitably mounted on the rear of the machine so as to rotate .about a horizontal axis. A suitable brake device (not shown) is preferably operatively associated with the tape supply roll 3S so that a drag is placed on the tape T pulled from this roll. The tape T is pulled toward the front of the machine through any suitable tensioning device 40, such device being shown las comprising a series 0f vertically staggered horizontal rods spaced longitudinally of the machine and mounted on the frame 35 and alternately over and under which the forwardly moving tape T passes.

After leaving the tensioning device 40 the tape T slides over a supporting base 4| provided on the frame. An adjustable electrically driven skiver 42 is angularly arranged on the frame 35 on each side of the tape T so that the milling cutter 43 of each skiver engages a marginal portion of the upper surface of the tape T to shave or skive the tape. In this manner the tape T is continuously tapered along its opposite longitudinal marginal portions, as represented at 44 and 44 in Figs. 3 and 4, so that the edges will be thinner than the middle portion of the tape and vhence when applied over a wallboard joint the marginal portions 44 and 44 tend to taper into the wallboard. If it is desired to leave the tape T unskived, the skivers 42 are vertically adjusted in order to raise their milling cutters 43 out of engagement with the tape passing over the supporting base 4| and the skivers are not electrically driven.

When the skivers 42 are being operated to taper the edges of the tape T it is preferred to remove the paper dust which results from the skiving of the tape. To this end, as shown in Fig. 1, a suction manifold 45 is arranged above the tape T and has a duct or tube 46 which extends longitudinally of the machine to a point in advance of the skivers 42 where this tube turns downwardly toward the tape T, the forward extremity of this tube being formed with a split suction nozzle 41, through which the tape passes so as to remove paper dust from all sides of the tape. The principal amount of skiving dust is removed by a pair of branch ducts or tubes 48, each of which extends downwardly from the tube 46 toward one of the milling cutters 43 and terminating immediately adjacent the respective milling cutters. In this manner, the tape T is left clean of paper dust after being skived.

The forwardly moving tape T then passes over a crowned roller 49, thence downwardly and under a guide roller 50, and thence upwardly and over a drive roller 5| fast to a shaft 52 (Fig. 2). Each of these rollers 49, 50 and 5| is suitably y mounted on the frame 35 so as to 'be rotatable about a horizontal axis extending transversely of the machine. The periphery of the drive roller 5| is shown as being formed with an outwardly projecting and circumferentially continuous central ridge 53 which impresses a continuous longitudina1 groove 54 (Figs. 3 and 4) centrally in the tape T passing thereover, an adjustable rubber back-up roller 55 pressing the tape` T against the ridged drive roller 5|. The interposition of the tape T between the rollers 5| and 55 with the roller 5| being driven serves to unwind or pul1 the tape off the tape supply roll 39 and'feed theitape at a predetermined ...lineari-.apegadaaai? @ages-tors tapei'ILe-i preferably .-providedffwit thegroov. 54 opthat .11. tapefean ;.aberreadilyioldedalong a Str ig n Whennised @to -ooverfinside for .outside-corner -on wallsrand n. .the like. If: it is.;not, desired; to sofgroove. .the

a; tapez'lf. a drirefroller siniilarftot. erroller 5.1 but -funprovided with..@theatereIk a-eroovi'ne ridge 5 3. iS

employed .inplaoeofythe lroller l .which are .shown .fasroomnrsinez an; .eleotrio motor The,rideed drive ro11er;5.l.ie. driven by .means gear .-rednoer. .51. is Shown. as.: haring a. horizontal lowfsneedoutput shaft-..58 extending-.transversely colf the manine.. with a .snroket 159;;(Fie. v2). fast #the frontof; the maehine as snorvninfig. 1.

y to. this shaft-.andfdririne chain fwhiohfpasees 1 Aaround a driven;spioolret.l 6ft-.fast rto., thevend .of :.:theshaft 52-on theexterior of. thefleft frameplate- 38 (Figs. 5 and 6) theridgeddrive roller 5l being mounted on this shaft 52.

. After passing over the vridgedfdrveroller 5I the tape T passes through a guide press v(i2 which l is vpivotally mounted on the transverse shaft 52A and arranged on theforward sidethereof.v As .best shown in Fig. 20, this guidepresslhas a slot or channel 63 in which-the tape T is-arranged in order to guide the tape in its forward VInovement therethrough.. A bracket 64 -loivotally mounted on thefshaft 52 .carries the guide press :62 which is normally. maintained. in a substantially horizontal positionby a spring 65 suitably .connected .to the frame;.35,.-thisfspringe urging .the bracket 5d against-a StopJB-Xed to the frame i (Figs. 2 and20) Also pivotallymounted onthe transverseshaft .i 52 is a. forwardly projectingarm 61 which'carries a removable and adjustableknifeiblade..S8-.on its forward extremity: (Figs. 2 and 20), the'cutting edge of this knife blade extending-transversely of and normally yarranged above the tape T. A

compression spring .69 .operatively arranged be- ...tween the frame35. andthe arm 61 urges this arm to rotate about the axis of theltransverse shaft 52 so as to move the knifefbladedownwardly ytovvardthe .tape lT. A knife arm. stopY 10 ,is arranged on the frame-andis adapted to ...be engaged 'by the head of :an adjustable screw i .downward movement ofv the knifeblade 68.

'Il carried by `the arm B1 therebyto limit the The knife .blade 68 Aduring-its descent passes .1. the forward end of theguidepress 62. 'The knife arm 51 intermediate its'ends-carries a yieldable striker 'i2 so that the operativelower `end 'of this striker. is adapted toengagetheguide press 62' .and push it downwardly (-Figs'.20 and' 24).To this end, the striker 12 is shown-as being slidably .arranged in a hole 1'3- provided inthe knife Iarm SLand having a.shank.14 slidably arranged-in a hole provided in the intermediate cross vpart of' The knife-arrnpii'lA isnorrnallyfheld in a position ineJ . andan.: Referring-torti extendstransversdy o; emaeh .allyiniounted ate on. bertra.. hand. Side oixthe machine endriding. on. a cam 8 l A` the sideaofftheghaft 311, a. risinaportion. roeressrely inoreas- 'ine:radius.oonnectinatne .orresnondine the portions 811 and 812, and a radial portrongl* Connecting .the otherCorrespondinesendsorthese portions Blflaandzltr; Whenft aA v81fisrotated in the direction. of. thearrows. `oir/n.Y ....-lfl'irlfJ the end ofthe cam 1eyer `19 .engagineithe .carni .ill V.rifle ofthe. oarn.por.tion..8l.l andisineethelif ro '21S is then. noteunpottefi the springt@ :.(Eig. 20) expands tov Sivinathe knife arm" 61. :downwardly until the screw .Heneaees tn .stopzln.;-Fig;.2.4 As the earn ills furtherirotated nttneidreetion ofthe. arrow Shown inrlrierzlt the-.operati end of the cam lever 19 engages the risingperipheral .portie f. 8l? Seas. o liftathisacam lever-:wahlen in f turn lifts the liftrodrzland'whionein turnfswings the knife. arm 6l. unwa dint malin nerativerposition- (Fie: .2.0iif1aeainstetheiirgine frane f Aspring.

When the Strikerrlrfnnshes .the euidevfnress if .S2 downwardly.;this niorernent .of Lthetgi-.iidezpress is against thenreinepfzth returnzsprineregso i0.- fthat When. the ,euidef-nressasxfree to@ swingen --Wardly itis pulled upwardly -bytnis springeuntil the guide press engagegthestopg.

f Referrna .again tosthe .-tapeffrsthefi same is shown in Figs; land as :being wound around a Cardboardeore C .Yarra ged. '.on;v anmandrelrz '-which is-one of a. seriesgoffgidentieal mandrels, the othersbeing identifiedwas.;822zriande23. These mandrels 8.2;, ,/2a823fandf823-are mounted on a mandrel .supportorturret-za chzisrmovable so as .to--moveeachpf-gtnes mandrelsrsucoessively v.through '.eorefleadinarollxstarting; roll winding and` roll. nnlOadineistatiQnS. Asr .shown in e .2, mandrel 82.2.- ieinfthe uoore loading-station, mandrel @2% in 1 -the .'roll..fstartingrzstatiom mandrel 82 in the roll winding. s tation;and-:inand rel 82 lin.i',herollunloadingstatign; The tur- -ret 83 is shown intheffQrm of adiskyplat yertically Aarranged between the-lframeq-plates-SI and 3 8 andsnitablvirotataiily, inonntedbn a. eintrat@ projectingv 'horizontally-L inwardl Vlfrein..the. @left frame plate. .38 (Figs. 13 2,u 12 .and .lei- 16).g 'llh .eeluallyf spaced radially about the faXisf-of. thep t1 mandrels projectj laterally turretavnd are-individua ...thereon Referring -nartieularlyftoz= li'igs..;12 :and :lathe mandrel 2-.:\7 vhich1is.representative oeach man- 'drel; -is shownas :comprising: alshaftememberi enlarged` atr` onevend to: prov-ide a cylindrical .mandrel head 8.6. if This mandrel-vheadf 6v forms a 1:. .-.Whehzl theknifebladefllf isdn ani eleyated ineen-amusing'. fop.' an.series-0e@radially ...movable ,and

' siin'arjaws s'1, four of these jaws' being shown.

Each jaw 81 is in the form of a flat blade slidably mounted in a radial slot 88 provided in the mandrel head 86 and limited as to radially outward movement by projecting pins 89 and 89 arranged in enlarged holes 90 and 90', respectively, provided in the mandrel head. The outer corner of each jaw 81 is preferably smoothly beveled and the inner edge 9| of each jaw is tapered radially inwardly of the mandrel head 86. The inner tapered edges 9| of the jaws 81 engage a frustoconical wedge 92 reciprocably arranged in a cylindrical recess 93 provided in the mandrel head 86. This wedge 92 is secured to one end of an operating rod 94 which is slidably arranged in a bore 95 provided centrally through the shaft member 85. The operating rod 94 extends completely through the bore 95 so that the free end of this rod can project from the shaft member 85 as shown in Fig. 12.

As illustrated in Fig. 2, the mandrel 82 at the roll unloading station carries a consumer roll R of paper tape tightly wrapped around one of the cardboard cores C. In Fig. 12, the condition of the mandrel 82' is illustrated immediately prior to the removal of the roll R therefrom. In this condition, the jaws 81 are radially retracted within the mandrel head 86 so that the outer edges of these jaws do not project beyond the periphery of the mandrel head, and hence do not clutch the core C.

In order to mount each mandrel on the turret 83, the shaft member 85 is shown in Fig. 12 as being rotatably arranged in the bore of a sleeve bearing 96 one end of which is of reduced external diameter, to provide a neck 91 projecting through a hole in the turret 83. The outer end of the neck 91 is externally threaded to receive a nut 98 which clamps the turret 83 against the shoulder on the sleeve bearing 96 formed by this neck. A pulley 99 is fast to the outboard end of the mandrel shaft member 85.

The mandrels 823, 82 and 822 which are illustrated in Fig. 2 at the core loading, roll starting and roll winding stations, respectively, are shown as being rotated in a clockwise direction about their respective axes whereas the mandrel 82 in the roll unloading station is not rotated. This is accomplished by a fiat belt passing around the respective pulleys 99 for the mandrels 822, 823 and 82 and which also passes around a drive pulley |0| fast to the shaft 58 of the gear reducer 51 (Fig. 2). A spring loaded belt tightener |62 -engages the belt |00 and maintains the same tight at all times.

If the turret 83 were not restrained, it would rotate continuously about the axis of its pivot 84 by reason of the belt |80 driving the mandrel pulleys 99 and particularly if any of these pulleys engaged by the belt resisted rotation. In order to maintain the turret 83 stationary while the tape T is wound around the core C on the upper front mandrel 82, a turret stop arm |03 (Figs. 14, 14A, 15 and 16) is oscillatably mounted on the machine frame 35 and has its free end formed to provide a semi-circular socket |04 adapted to engage the bearing sleeve 96 (Fig. 14A) of each of the mandrels when in the lower front mandrel position. The hub |05 (Figs. 14 and 15) of the turret stop arm |03 is rotatably mounted on a rod |06 which extends horizontally transversely of the machine and is longitudinally slidably mounted on the left frame plate 38 and also in an outboard bearing |01 on the right frame plate The rod |06 is slidable in the hub |0501 the turret stop 'arm los so that the latter naves in' a 4 tape.

plane spaced a fixed distance from the turret 83. The turret stop arm |03 is actuated by a rock arm |08 connected to the hub |05 and a shipper rod |09 connects this rock arm with a cam lever ||0. A tension spring operatively connects the rock arm |08 with the frame 35 and constantly urges the turret stop arm |03 to rotate on the rod |06 in a direction to effect engagement with one of the mandrel bearing sleeves 96. The cam lever ||0 extends transversely of the machine and has one end pivoted on the right side of the frame 35 and its opposite end extends over and engages a cam ||2 mounted on the cam shaft |82 (Fig. 2). The cam I |2 is so formed that upon its rotation it raises the cam lever ||0 thereby lifting the shipper rod |09 and swinging the turret stop arm |03 out of engagement with a mandrel sleeve bearing 96 and permitting the turret 83 to rotate in a clockwise direction as viewed in Figs. 1, 2 and 16.

The lineal speed of the belt |00 is such that it tends to rotate the pulleys 99 on the mandrels 822, 823 and 82 so that the peripheral speed of the tape T being 4wound around the upper front mandrel 82 is faster than the feed of this Thus the tape T is tensioned to wind a tight roll and the turret 83 will rotate about its pivot 84 when the turret stop arm |03 releases it to do so. However, while the turret stop arm |03 is in its operative position the turret 83 cannot so rotate and the belt |00 rotates the mandrels 822, 823 and 82 about their respective axes. As the roll of tape being wound around the upper front mandrel 82 increases in diameter, the belt |09 slips on the pulley 99 for this mandrel so as to maintain tension in the tape T but insufficient tension to rupture the tape.

When the core C on the upper front mandrel 82 has a predetermined length of tape T wound around it, the turret stop arm |03 is actuated to release the turret 83 and the mandrel 82 is moved to the lower front mandrel position or roll unloading station. As the mandrel 82 is so lowered the free end of the operating rod 94 of this mandrel engages a stationary cam ||3 on the inner side of the left frame plate 38 in the manner illustrated for the mandrel 82 in Figs. 12, 14 and 15. The stationary cam ||3 is formed with a projecting face engageable with the end of the operating rod 94 to cause the wedge 92 to move out of the recess 93 in the mandrel head 86 and hence permit the mandrel jaws 81 which were clutching the core C of the fully wound roll R to move radially inwardly and thereby drivingly disengage or declutch the roll R (Fig. 12.). It will also be noted that the mandrel in the lower front mandrel position is not rotated since its pulley 99 is not engaged by the belt |00.

Means are provided to remove a roll R from a mandrel at the roll unloading station and after such mandrel has been operated to declutch the core C of such roll. Such means are shown in Figs. 12 and 14-16 as comprising a. stripper arm H4 having a hub ||5 mounted on the rod |06 to reciprocate with this rod but free to rotate thereon. A semicircular recess ||8 is provided on one 'side of the free end of the stripper arm IM and is adapted to receive a mandrel head 89 (Fig. 16). The stripper arm ||4 is operatively connected with the turret stop arm |03 for rotation therewith by a rod 1 parallel with the operating rod |06. The rod ||1 is secured to the turret stop arm |03 and extends through a hole provided in thestripper arm H4 whereby 9E# this=.;stripper..arm ,is .slidable .on this; rod..\.-..Norf... L mally the. stripper arm is inits .inoperative .posi-...- tionadjacent ythe-turret .83 `and on the inner side Aof the roll.R,.-as-Ashown in Figs. .12 and15 but'.l is moved to and fromrlits; operativeiposition.- .5 shown in Fig. 14by the .operating rod I}6.J When thestripper :arm H4 is moved-to the left as illus. trated in Fig.- 14,Y it stripsv orpushes a roll R from l. the. mandrel.,/The removed rollifR may bedeposited in any suitable receiving devicel |8- (Fig-:14) which is shown as .being adapted. to support a plurality of-such rolls.,

The operating rodg-Idisshown asrrecipro cated v'by.'pivotallymounted wheel. sectors H and.|20.connected,by flexible connectorsJZi and-15 |22, respectively, with. the operating.- rod (Figs. 5,.'.17-.19).'. The. wheeli-sectory IE6-.is arrangedinvr the horizontal plane of the operatingrod .it-v. and-.its.exible connector|22 which .is in .the formeof a chain-is connected atene .end to `this..20 Indias-indicated at|23 "and at .its opposite .end to.the....remote endof .this .wheelsector .as indicatedfat.- |24; thei chain. |22 .being engagea-ble withatheperiphery of vthe .wheel-sector. The .z wheelsector IISV is.arranged.-abovelthe-vwheel sector -.|2ll.. and r has .its flexible :fconnector f-|2| which-.is in the. forni of fa .chain .connected at.v` one .endto .thisvwheel".` sector as .indicated at 1| 25 andat fits,v` opposite end withathe eXtrem-ityv of anupstandingv arm'v |2Efsecured to the outerend 30 of-the:operatingerod' Mise-The wheel-sectors il@ andr|20 -arearranged in this vertically vspaced relationfon .a vertical .shaft v|21 journaledratits ends in brackets': IZB-zand |28' .mountedonthe exterior vof .the .left frame .platei' `(Figs: 5 andv 35 17).. .The shaft.|21 to whichthenwheellsectors ||91.and..|2|l are.. suitably non-rotatablyvsecured is .adapted -to-.be rotated about .its own :axis .by an operating wheel sector. |23fconnected-ati3d* to..-one. end of a ilex'ible connectorvfiISI f in the formi-.of .a chainf-the opposite endof thisrexible.. connector or chain-| `beingizsui-tably connected to theupper end ofa roc'k.lever.|32. `The -rota-' tionaof .the vertical vshaft |21 in a clockwise fdie rection.. as viewed in Fig'. 18 .is -yieldingly opposed by.. V.wind-.up springs .-I 33 .f. and |334` r operatively interposed between the ffbrackets 1 |28 and:v I 281' j respectivelmand the `shaft :I 21.-:

The rock.-.leverv.x|32rr is .pivotalrlyv mountedffon` the machine frame 35afor movementl ina vertie-` calplane extending transverselyof thefrnachine..1` A cam :I 34fmounted onthe cam-v shaft: |82:(Fig.y 17) 'actua-tes:the.:rock1lever' |32. Thus;thelower end of'the rockilever1|32f-is pivctedfonigthegmaezr. chine frameif'as indicatedeat I 35 and this.. rock leverf. is iconnected :by -a link :I 36 "to 1, a camvv lever i ISLf-The'cam lever-rl31sis also-vpivotallymount` i edf on the. Imachine :france3 51-:fformovement'in la plane transversefof the machinegftheflowerzend. ofzthiscam-leverbeing :pivotally mountedfonthe 60 machine-.frame =.as-indicated at` |381" .The .upper .Y and. `operati-ve endof` the. camlever '|31 engages i: thei periphery ofV the .camf :l 34 which is .'.forined' withva salient1 .part on oneside.v (Figi-:17).

The operating mechanismor 'thefoperatingf rod 06. is normally' arranged..A .the Icondition illustrated inlEigs; l1-19. Thus .the rock 'lever-- |32 --inclines-upwardly .and-inwardlyof the ma. chine, the chains |3| and I2 2are wrapped around. thezperipheriesof theirffrespective wheel sectors: |291-.and|e2, and fthechain I2 I .is arranged-paral-z leltozthe.operatingrod |36: When rthe cam. 134-. rotatesin .a clockwiseA .direction as viewed in Figs, 17 ,fthe salient `part `.thereof swings. the cam lever I31rto sthe. right whichinzturn, through thelink.

|36,- -also.;,swings :the .rock..lever. |32 ,to the..-right.,|. Such movement ofthe .rock lever .|32.pulls`.lthe... chain |3| so as torotate the wheel sectors 129," ||9 and |2-in a clockwise direction as..viewed` l in Figs. 18 and 19, and .windsupthesprings .|33`j' and |3321 This causesthe .chain |2|"to be pulled, inwardly of the machine and. this .chain wraps itself around the periphery. of the.wheel sector. ||9 and atthe same time .pullslthe' operating lever to the leftas viewedv in Figs. -17l9l I Ther.' chain |22..is unwrappedfrom.the-wheel. sector. |20. `After the salient part of the cam.|34 passes. the operative end of thev cam lever |31, the springs.I |33 and |33 unwind vso as to rotatethelwheel. sectorsv |29, I IS. and .|211 in a counterclockwise direction as viewed in Figs...18. and. 19 and the.. chain |22 pulls the operatingrod tothe right and the chain I3 Ipulls the upper end of the rock lever |32 to the-left as viewed in thesefigures, the exe tent of movement of vthe various parts beinglimited by engagementof theoperatifveendlof the cam lever-'|31 withthe .cam |34.

As previously. described,l when .a fully wound. consumer roll R is removed from the mandrel in the roll unloading station, the cardboard core C around which thepapertape is wound to vform this roll R is also removed -from .this mandrel. "It"' is therefore necessary. toprovide meansv for alb-.1: plying a different corefC to such-mandrel so .that a new tape -roll .canbe I subsequently wound' around it. Such means are shown as associated. with'the mandrel in the lower rear mandrel position or core-loading ystation .(Figll) 4and will be described in connection with. the mandrel 82.2' although, of course, the same..operation, is .performed onV each of the other .mandre1s.823,`82 and 82 when they are-brought successively into. the: core loading station. Such. means are shown as including` a coremagazine|39 and a core loader- |40..l Tha-.core magazine .|39includes .an upwardly and. ,forwardly inclined chute |4| and spacedV coverplate |42 "betweenl which a column of hollow cardboard cores C are arranged with their axes .extending horizontally'. transversely ofthe machine.. (Figs. .1 and 16)5" The core-magazinev|39 is mountedon theinner` side of the right. frame plate31 (Fig.` 15)' and the lower end of .its covenplate` |42 is curvedas in'v dica-ted atV |43- so as .to .be concentric withthe. axis ofv the mandrel. 822'(Fig.116)`. Thecurved end |43 servesasa stopagainst which thellowei errnost core Cof thecolumn of cores inthe maga'- zine |33l can rest. in .a position in coaxial. 'aline-1. ment with the mandrel822. The' core loader |40 includes a tubular. .core pusher |44' adapted to engage `one'end. of .a core and connected to the. upper end of an .upwardly and rearwardly"inx clined arm...|45,.the oppositeorlower. end of which is suitablyrigidly.connectedto .a hub .|46` fast:tothe operating rod |06 (Figs.4 15'andu .16)1 A tubular housing |41 is secured, to theexterior.. of the right frame plate 31 coaxiallycf the man-Y drel 822 and is provided witha slot |48` in whic'hl the `core pusherarm- |45 is fguidinglyarranged.` A slot. |49 is also provided in the outboard be'ar. ing-||l1 for also accommodating,thisJarm |455..v When the hub |46 is reciprocated with th'eoperatingrod |36, as previously described, theuarm` |45ano'l` core pusherl |44'are reciprooated-there with. The core loader. |40 is in its .normal.posi.

`tionillustrated in Fig. y 15j .with the..corepusher..Y

|44v .arranged in the..,bottom ..of..the-coremaga. zine. |39 with the lowermostcore C .offthe umn of cores .in the magazine resting .againsti i. (Figi: 416) When. actuated. .the .core loader.. |40# moves .laterally outwardly. .of .1 .the ...machines toe.

the broken line position indicated in Fig. 15. This movement withdraws the core pusher 44 from the core magazine |39 into the housing |41 and permits the column of cores C in this magazine to drop by gravity until the lowermost core rests against the curved end |43. Thereafter the core loader |40 moves to the right as viewed in Fig. 15 whereby the lowermost core C is engaged and pushed by the core pusher |44 onto the mandrel 822, the jaws 81 of which are in their radially retracted position so as to permit the mandrel to receive this core. The operative end of the core pusher |44 is provided with a cut out |50 (Fig. 15) on its front and rear sides so as to avoid interference with the protruding wedges 92 of the two lower mandrels when moved by the turret.83. When the turret 83 is rotated the lower rear mandrel with a core C thereon is elevated tothe upper rear mandrel position and during such ascent the outer end of the wedge 92 of the mandrel engages a stationary cam (Figs. 12 and 15) arranged on the interior of the right frame plate 31. This stationary cam |5| is formed with a cam face engageable with the outer end of the wedge 92 of each mandrel as such mandrel moves from the lower rear to the upper rear mandrel positions to move the wedge 92 so engaging the cam face inwardly of the respective mandrel head 92 whereby the respective mandrel jaws 81 are forced radially outwardly to clutch or non-rotatably hold the core C to this mandrel.. By the time the lower rear mandrel arrives at the upper rear mandrel position the core C on this mandrel is firmly clutched thereby so that the core rotates with the mandrel.

When the tape T being wound up on the upper front mandrel is severed,.the leading end of the severed feed tape is immediately caused to be wound around the core C on the mandrel in the upper rear mandrel position or roll starting station. The means for accomplishing this will be described in .association with the mandrel 823 and the core C thereon (Figs. 2, 20, 24 and 25), although it will be understood that the same operation is performed on each of the other mandrels V82, 82' and 822 when they are brought suc--A cessively into the Vroll starting station. Such meansare shown as including a movable guard |52 normally embracing the front side of the mandrelA 823 and core C thereon as shown in Figs. 2, 2 0 land 24. This movable guard |52 comprises an arcuate body |53 having an inner cylindrical guide face |54, as best shown in Fig. 23, arranged in closely spaced relation and concentric with the periphery of the core C on the mandrel 323 to provide. a channel into which the leading end of the severed paper tape T can slide between the core periphery and the face |54. In order vto yieldingly press the tape against the core the guard |52 carries a spring |55. Referring to Fig. 23, this spring |55 is a curved or bowed leaf arranged inra recess |56 provided centrally in the inner face |541, one end of this leaf spring |55 being suitably anchored in the recess |56 adjacent one edge ofthe arcuate body |53 as indicated at |51. The opposite end or. tail of the leaf spring 55 is free and preferably projects slightly beyond the opposite edge of the arcuate body |53. The leaf spring |55 is formed so that it tends to seek a curvature having a radius greater than that of the face |54 with the result that the intermediate portion of this leaf spring projects from the recess |56 and engages the periphery of the core C as shown in Figs. 20 and 24. The edge of the curved body |53 adjacentwhich the leaf spring |55 is anchored at |51 carries a knife blade |58 which projects generally tangentially from this edge. This knife blade |58 is shown as being clamped against a flat surface |59 on the exterior of the curved body |53 by a clamping block |60 held by one or more screws |6| screwed into the curved body |53. The knife blade |58 is therefore adjustable and removable. The knife blade |58 cooperates with the movable knife blade 68 to cut the tape T as illustrated in Fig. 24.

One end of the guard |52 is formed to provide an arm |62 which is suitably non-rotatably sey cured to one end of a rock shaft |63. This rock shaft |63 is suitably journaled on the right frame plate 31 so that its axis is horizontal and eX- tends transversely of the machine. The guard |52 is arranged on the interior of the right frame plate 31 (Fig. 26).

When the upper knife blade 68 drops and cooperates with the lower knife blade |58 to sever the tape T, the tape guide press 62 presses the leading end of the severed tape against the top of the core C on the mandrel 823 as illustrated in Fig. 24. Inasmuch as the tape T is continuing to be fed forwardly by the cooperation of the rollers 5| and 55, the leading end of the severed tape is fed into the inlet of the space or channel between the core C on the inner guide face |54 of the guard |52 and advances between the leaf spring |55 and the core, this leaf spring yielding to permit this advance of the tape and at the same time urging the tape against the core. After the leading edge of the severed tape T has been' so pressed by the leaf spring 55 against the core C, the guard |52 rotates in a clockwise direction as viewed in Figs. 24 and 25 to the position illustrated in Fig. 25, rotating at a speed such that the tape is constantly advancing slightly relative to the guard |52.

In the fully displaced position of the guard |52 as illustrated in Fig. 25, it will be noted that the unxed tail of the leaf spring |55 is immediately under the tape T being guided into the nip between the core C and the tape extending thereacross. The guard |52 remains in this fully displaced position on the rear side of the mandrel 823 until several convolutions of the tape T have been wrapped around the core C on the mandrel 823 after which the turret 83 is rotated so as to move this mandrel with its newly started roll of paper tape forwardly, as illustrated by the broken lines in Fig. 25, to the upper front mandrel position or rol1 winding station at which the winding is completed. With the guard 52 on the rear side of the mandrel 823 (Fig. 25), this mandrel is permitted to be so moved by the turret 83 and after the mandrel |323 has left the guard |52 this guard can be rotated back to its original and normal position (Figs. 2, 20 and 24). rotation back is limited and controlled by a stop lug |64 carried by a collar |65 fast to the rock shaft |63, the stop lug |64 engaging one end of a f stop screw |66 adjustably held by a bracket |61 secured to the interior of the right frame plate drive sprocket |68, a chain |69, an idler sprocket |10, a return spring |1I, a cam lever |12, a cam roller |13 and a cam |14. The drive sprocket |68 is arranged on the rock shaft |63 between the guard arm |62 and collar |65 and is suitably nonrotatably secured to this shaft. This chain |69- The p passesifaroumithefrnt'side'foff'thedrve.sprocketic I 68 vs'fitliftsV lupper '-'en'df oonnected bythe helical-f. tensonireturn' spring. I'II to Vthe machine-frame l1 35i-.at any suitable .pointthereone Thelower'part of the chain `Ipassesaround' the rear side of theidler fsprocket'llfwhichfis arranged below and. inrear-.of thel drive sprocket I58"and1kthel lovver'end'aof. the vchain Vis suitablyfconnectedL kto thecam.' lever: II `'I'2.1` This camA lever I 'I2 is far-r ranged.. belovvfthe .cam .shaftf I82 and. extends transverselyof thefmachine,1oneiendof this'cam f leversbeingzzpivoted :on `the rbed :plateBS' f the I machineframeis :on theleft' side ofthe machine 1 asiindicatedfatit'i for pivotal movement in aver'- ticalz plane. :.-.The".cam.1ever2is arranged slightly 1 in'rearrof ithecam II4``andcarries. the cam roller |13 .forengageme'nt withith'e bottomlperiphery 'of thcamet 14"." .Thep periphery. of thisacamA |1131 isn formedwith aY concentric' innerfiportion. |14 land*- angoppositeYV salientLdWell portion; :I M2 also Lcon-x centriciwithzthe faxis of the' .camL shaft '|82 Y. and inclined portions |143 and I 'M4 conneetin'gxthe@ corresponding ends-i of rtlfmepoitionsii '74T and :I 142. 'Ih' cam""lever:l=l2 is illustrated in Fig. 26 in its normal-inoperative position in' which. .the cam.'- rolleriIIB engageslfthe peripheral portionY I1I4 and inwvhich the/tapei guard I52is arranged onthe. front :side of:l tha-'upper :rear 1: mandrel'. (Figs.' 2, .i 20 andz24) Asxthe camfIM is rotated vin a coun-A terclockwisefdirection aSvieWed. in Fig. v26, the camfrollerfI'IS ffleaves theiportion |14 and-rolls up'the" inclined portion 1143 Tonto the '.dvvell .portion H42;v Thisffswingsithelcam'lever H2 down-'1 Wardlyiwhich in .turnrpullslthe :chain |69. downs; Wardly. 'i and: vwhich zinirturntfrotates the drive" sprocket .'fIBBr-in 'a counterclockvvise.direction'as'v viewed'in-Figx .'.therebyrotatingttheLrock shaft I63f,';guard:l52 fandioollanJ'SE fin a clockwise di rectionfas vievved. in.Fig.r`;-24;`. v.Duringxthisfopera# tion'. :thereturnrfspringl I I I is stretched.V As 1 the cam I 14. Vcontinues*A to"v rotate :in thev L same 'direc'- tionthe. camxroller vI'I3` leaves the'dwell portion.. IIizzand rolls Lradiallyfinwardly of .thercam .-I'M alongrth'e inclined portion` I M4" onto the Sportion 1 I 14.' This fmovement' of ithecamirolle ..I 'I 3 `perf-f" mits'zthe :stretched return" spring.' .I 6 Ii toicontractfl andpull theichain: 16m-sofas tolmove .the various..` parts associatedttherewith"L whereby the' tape. guardl 52 Lis :'rotated.- from.' its fully: displaced 'poi-'G siti'onf 'shown in: Fig`.:'25i. to the :position fishown. in Fig;.f 24;. 4'c-hiszreturn'f rotation fbeing terminated'- i Whenthe" `stop `-lug I 64?..carried .by the' icol'lar: I 65'? engages thestopscrewfl:

Means are `provided;to'securethe;.trailing fendi of .theisevered tapeLT Whichshasasbeencutfb'yi the knife^blades16il and." I581to thelroll vo'f suelrtaie.7V being Wound around the core C on the mandrehll in. thenpper frontmandrel position or 'roll Winding station. Such `means .are shown 'instFig's-:FL 2,' 5 and 28-33 v'and Will'bedescribedimassocia* tionv lwith the mandrel. 82 "whichis :illustratedfin' 1 the drawings at theA -roll Winding stationalthough.r it v*will be vunderstood that .the same operationsis. performedzo'n'th'e other `mandrelsz8233.822.1arrdt82if' as .-they are 1moved'f'successively...te'this: station.:`v

Whilefthe trailing end of the severedl taper.'I"i`hay".^Y

befsecured tothe roll in any suitablewmannergt 1' gurnrnedftape"overlapsithe,sererecltrarrsversea'edgef of thetrailing end of the tapeT andsecures'thisg; trailing, end; :to the; next. .innere convolution vvof paper.;.tape to :.formza `completey consumer -rollzRs Suchgummeditape-Eapplyingmeans are: yshown as farrangedaonthelzuppeniront part :of the: ma-r.

' chine'sramefisabove.the mandrel v8'2.A l Forthis..`

purposey: an-eauXiliary.: frames plate! I'IIS isY ar-franged. Ion the .exterioro theA left iframe: plate 38 i andextendsf11pwardly therefrom vand* is suitably securedzthereto (Fgsxfl, 2, 15 and;30)f. A gen'- erallylhorizontally arranged-:'supportiarm I'II is f freely 'pivotallyfmountedi'adjacentits; rear end' on 1 a pivotipinlv suitably,journaled 'ontheauxiliary frame platet'l. :n.Thisssupport armzII'I"extends:

V forwardly sozthatitsrzf-ree .fronti end ,is .generally ,i

# above the mandrel 82 andis normally held. in this elevatedflpositiomabovevthis mandrel byi a tensionspring ,.Iz'IQr'fFigs'Lifl. and 2). Thelowerend: of @this springraIz'I 9 iis suitably i' connected. to the supporti arm: I'I'I '.andrits' upper end-:is suitablyfz;r 203 connectedLtosa. support:bracket:l :I isuitablyjconf. nectedtotheleft-frame plate 38 (Figg) .Thelower fronttcornerfof this-:supporti arm' :I I1 carries freely;rotatablearoller il 8 Ixfwhich ris "adapted: to engage'-thezxrollriof .taperiT beingzwound on the 125i' mandreliz-.zwhensthe diameterfof'this roll' builds: up' tov nearlyits sfulldiniiension'; Engagement of the rollerfilrl withthefpaperroll relieves .the load: of thezrsupportirarm :1I ."I'I :fromztheytension spring I 'I 9 :and:asflthejfpaper frollizfincreases fin diameter x 303 ther-forward.:endfoffthe support farm'risesypivoting on the pivotl "'18 A spool :fl'r83f'zo'f elevated-:position: on` amnpstanding. arm 1.34! suite..

member; in .the-formrtoffa 1'f1ansverse-bar orn'ger l'fanda presserrmember in theform of a rub- A0ber-:rollend86::1Thetransverse-bar or nger 'It projects .horizontallyacross-.the'back 'and' gummed side i of thef-gummed '.tapegiand; is carried 'byV the lower'freefendaofanwupwardly andrearwardly inclined movable:arm:"I'I-fpivotedatw on the necte'd:atpneaendztofthe'movable arm IBI--and at its other end to the forward arm II'I (Figs.:2 and. 20)^.and1constantl= nrgesthermovabie arm 31 stos\vviI-1gr-.upw ardiy.;A The fronti or' ungummed o. side. ofthegummedftape is engaged by" the rubber -'roller-fl SIS-fwhiehis rotatably mountedon the rear.

endfofY a` generally-.horizontallever :I y-ths lever beingfpivotally.mounted.-intermediate its ends oni` thefsupportfarrn.- I-.TI-asi-ndicatedat Ii!! (Fig. 28)." if 55, Thev rearaendof'fthe :lever-:ISU is formed to providel anupturrredrcam foot ISZf'engageable with'. the 'nlovable-V arm rI'i'lfwsoffasto swing 1 this arm downwardly-..1 therebyito movethe clamping.bar` I s awayafrom theanbbenro'llerel5ff Separation 1 o f` thefclampingabar ifandrubber.roller'I 86 re 1eases.f.the. fummed tape theretofore elampedvl therebetweema-.

Inzorder to .-rnove the leversl about .its pivot,

I 9 Isso. as` toiefect .the ilnelamping-ofthe gurnmedi-t4 .tapegfrthe :front-.end of- :theA levereis suitablyv con- 'Y neetedfto.the` armature' of` 1.a solenoid v--I 931 suite` ably ymountedfon A.the rsuppmif-arm -I TI: above the lever(Fig1--2) f .Energizations of this solenoid I 93 lifts the: front end efwthefleverf-y IMI-therebyN de-v 0 pressing1- its.v :Tears enf-lf;y and Ilowering-the rubber; roller-..18easaillustratedeini Fig; zgztaReferringgto Figi.;-28.v,--.it1willfloeinotedsthatv theleadingrendxof the g-ummedztapeftSB f: is'arranged underathe rub -.:f beri-rollerrI.BSS-withiitsigummed.forubottom. side". 751;'faoingatherollf-R.Czomtheanandrels2 :softhatwhen;

egunnnedfvtapegis supported in an geo-sms this rubber roller-is lowered it will press the. leading end |83' into adhesive engagement with v the trailing end of the severed paper tape T a short distance in advance of the transverse severed edge thereof (Fig. 29). This movement of the lever |90 also brings the cam foot |92 into engagement with the movable arm |81 so as to push this arm downwardly thereby to push the clamping bar |85 away from the gummed tape. Therefore, since the leading end |83' of the gummed tape has been stuck to the roll R and the clamping bar |85 and rubber roller |85 have been effectively separated to unclamp the gummed tape, this tape is free to move with the roll R' during its rotation.

The gummed tape is permitted to follow the moving periphery of the roll R until a suitable length of gummed tape has been applied circumferentially to the roll R to form a strip S such that the advance half of the strip S overlays the trailing end of the tape T and the trailing half of the strip S overlays an exposed portion of the next innermost convolution of paper tape in the roll R'. When such length of gummed tape has been so applied, the gummed tape is severed. For

this purpose a relatively thin knife blade |94 having a horizontal transverse cutting edge on its.

lower end adapted to engage the gummed tape is arranged immediately forward of the rubber roller |86 for movement in a generally vertical direction. The knife blade |94 is actuated by a solenoid |95, the armature of which is suitably connected to this knife blade and urged upwardly by a tension spring 98 connected to the upper end of an upstanding support bracket |91 suitably secured to the support arm |11 (Fig. 2). Energization of the solenoid |95 forces the knife blade 94 downwardly from its normally elevated inoperative position into engagement with the gummed tape thereby cutting it and forming a strip S (Fig. 31). De-energization of the solenoid |95 permits the stretched return spring |96 to lift the knife blade to its normally elevated inoperative position illustrated in Fig. 28.

The energization of the solenoids |95 and |93 is controlled in a manner to be described later herein.

While the gummed tape is being applied to the roll R' as illustrated in Figs. 29 and 30, means are provided to unwind a length of gummed tape from the spool |83, this slacking operation being necessary since positive eiort is usually required to unwind a spool of gummed tape by reason of the convolutions thereof sticking together. Such slacking means are shown in varying degrees of particularity in Figs. 1, 2, 5, 30, 32 and 33 and include a movable guide roller |98 arranged on the front and ungummed side of the stretch of gummed tape extending between the spool |83 and rubber roller |86. This guide roller |98 is freely pivoted on the front end of a normally generally horizontally arranged rock arm E99 (Figs. 1 and 2). The rock arm |99 is arranged on the inner side of the support arm |11 and the rear end of this rock arm is fast to the pivot pin |19. An actuating arm 200 is arranged on the outer side of the auxiliary frame plate |16 and is also fast at one end to the pivot pin |18 (Fig. 5) and when oscillated rocks the rock arm |99. In order to so move the actuating arm 200, the free rear end thereof is connected by a shipper rod 20| to a cam lever 202. This cam lever-202 extends transversely of the machine and has one of its ends pivotally mounted on the right side of the machine frame 35 and has its opposite free end 16 operatively engaging the periphery of a cam 203 (Figs. 32 and 33). The cam 203 is mounted on the cam shaft |82 and is formed with a salient part so that rotation of this cam will swing the cam lever 202 upwardly which in turn lifts the shipper rod 20| and which in turn swings the actuating arm 200 upwardly and the rock arm |99 downwardly thereby forcing the guide roller |98 downwardly and rearwardly of the machine (Fig. 30). Such movement of the guide roller |98 at a time when the free end of the gummed tape is held between the clamping bar |85 and rubber roller |86, pulls a length of gummed tape from the spool |33. Continued rotation of the cam 293 in the same direction permits the cam lever 202 to swing downwardly thereby returning the rock arm |99 and guide roller |98 to their normal inoperative positions. When the guide roller |98 so moves upwardly and forwardly it leaves slack in the unwound stretch of gummed tape which is taken up when the next strip S is applied to sion is relieved and the mandrel 82 and roll there-V on immediately tend to rotate faster. It is desii-able to elininate this tendency to speed up in order to insure that a strip S of gummed ltape is properly positioned across the severed transverse edge of the trailing end of the tape T and also to maintain uniformity in the form of complete consumer rolls R formed on the machine. Accordingly, speed up control means are provided and are illustrated in varying degree of particularity in Figs. l, 2, 5, 6 and 28. Such means are shown as including a soft rubber roller 20G arranged on the front of the machine in advance of the upper front mandrel 82 and suitably journaled in a stationary bracket 205 suitably secured to the left frame plate 38. The periphery of this soft rubber roller 204 is frictionally engageable with the periphery of the paper roll R when the latter is nearly its full size and shortly before the tape T is severed by the knife blades 98 and |58, the body of this roller 20d being slightly distorted or flattened at the place of engagement with the roll R in order to accommodate the increasing diameter of the roll (Fig. 28). The roller 204 is thus rotated by the roll R'.

Brake or speed control means are operatively associated with the soft rubber roller 284 and are operable to maintain the peripheral speed of this roller the same as that oi the tape T being wound on the roll R when this tape is severed by the knife blades 88 and |58. Such brake means are shown as including a clutch 208 arranged on the left side of the machine on the outer end of the.

continuously driven transverse shaft 52 (Figs. 5 and 6). This clutch 20B includes a' drive sprocket 201 freely rotatable on the shaft 52 and connected by an endless chain 208 with a driven sprocket a collar 2 I0 secured to the outer extremity of the4 shaft 52- as by apin 2| I andel roller thrust bearing 2|2 vwhich is backedup by acam'collar 2 Iv3. This cam collar 213 is rotatably-and Asliiably arranged on the shaft 52andis formedcn itsinner side with a cam face vengaging ya correspondingly formed-v cam vface onfav stationary .clutch .memf ber 2- I 4 suitablyrigidly-connected to the left frame plate 37.2 asfby the bolt 2|5. A clutch actuating armv 2|is lconnected with the cam collar 2|3 and extends laterally therefrom as shown in Fig. 5. A shipper rod 2H connects the free end ofthe arm 2|5with a pivoted cam lever 2|8 which extends transversely ofthe machine and rides-on the `peripheryof a cam `2 l2 on the cam shaft |82 (Fig. 5). The camv 2|2 is suitably formed to raise the-cam lever 243-Which vin turn lifts the shipper rodf2|1 and thereby swing the cam actuating armj2 6 upwardly. Upon so swinging the arm 2|6 the cam collar 2|3 is vforced.v to rotate relative tothe clutch member 2-|4 so that the cam faces of these parts force the cam collar 2|3 to slide on the shaft y'iZ'to the left as viewed in Fig. 6. Suchvmovement of the cam collar 2|3, through the thrust bearing 212, shifts the drive sprocket 2t? also to the left and against and into frictional clutching engagement with the collar 2|@ which is rotating with the shaft 52. Therefore the drive sprocket 231 isclutched to the shaft 52 and it will be compelled to rotate at the speed of this shaft. Swinging the clutch actuating arrndownwardly as lpermitted by the cam 2|9 operates the clutch parts in lareverse direction and destroys the clutched engagement between the collar 2 IU and drive-sprocket 231.

rWhen-,the roll R- tendsto lspeed up after the tape T-hasbeen cut thereby .-tendingto drive the soft rubber roller 224 faster, the sprocket 222 through the-chain 288 alsorotates the sprocket 23'! faster. However, upon-the cutting of the tape T bytheknife blades =58=and 53, the clutch 236 is actuated `as-described above to control the speed of rotation of thesoft rubber roller 224 whereby-fthe rollr R' is preventedfrom speeding up. This controlled rotation of the ,roll R inn sures the proper relative timed operation-of the gummed tape applying means and hence the properfapplicationof a strip S of gurnmed tape tothe paper roll. Y Y A The tape-guard cam H4 (Fig. 26), turret stop armcani v||2 (Fig. 2), stripper armwand cor-e loader'operating rod cam |34 (Fig. 1'?) gurnmed tape slacker cam 223 (Figs. 32 .and 33) 4knife .arm cam` 3| (Figs. 21 "and 22), and clutch arm cam 2|9` (Fig. 5) are'arrangedvrespectively in tandem from front to rear in axially spaced relation and also in proper relative angular relation on the cam shaft |22 as shown ji-n Figs. 2 and 5. These cams n are preferably non-rotatably mounted in this arrangementen a cam shaft sleeve 222 keyed or otherwise suitably made fast l vto the cam shaft |82. rThe carin-shaft |82 is suitably journaled in journal .blocks 22| and 222 mounted on the bedplate 36 of the machine `frame 35 (Figs. 2 and 5). One revolution of the Vcam shaft |82 to which'the Yvarious cams r4are fast .including a chain 223 connecting a. drive sprocket 224l fast to the continuouslydriveiwldtvvspeed out- I8 putshaft 58 of thezgear reducerfl withV a-driven sprocket 225 suitably journaled ina journal block 226 on the bed plate 360i the machineframe so as to rotate this `driven sprocket about an axis extending transversely of the machine. A bevel gear .221 fast to the's'haftof vthe-driven sprocket 225 meshes with anddrives a gbevel gear 228 nonrotatably mountedon the hubof aV ratchet wheel 225.. The driven bevel gear 222 and ratchet wheel 22,9 are freely rotatable on the `forward end of the cam shaft |82 and are continuously being rotated by the driving mechanism just described.

The one-,revolution clutch referred to is provided between the continuouslyy rotating ratchet wheel 229V and the cam shaft |82. Referring to Figs.V 10 and 1l, a disk .230 `is keyed to the cam shaft |32 Vimmediately in front of the cam sleeve 222 and immediately adjacent the ratchet Wheel 22S and is slightly larger in diameter than .this ratchet wheel. An .ear 23| yprojects outwardly from the periphery `of the disk 235i for pivotally mounting a pawl 232 opposite the teeth on the ratchet wheel 229. The pawl 232 extends downwardly and its ,lower operative end is constantly urged toward the ratchet wheel 222 by a helical compression spring 233 arranged in a recess jin the disk 230 and bearing against .an offset arm 234 connected to the pawl. The operative end ofthe pawl 232 is normally held retracted or `out of engagement with the teeth on the ratchet wheel 22.8. yForthis purpose the arm 2.34 is provided with .a generally yhorizontal downwardly facing 4shoulder 235 which normallyl rests'on a lug 236 formed on an upstanding shift arm 231. The lower endof this shiftarm 2.37 is pivoted on the bedplate 33 of the mafzhine-frame,` as indicated at 238 (Figs. 5l and 10), for movement of the shift arm about a horizontal axis `extending transversely of the machine. The upper end of the shift arm 2311s provided with an enlarged hole 240 through which a generally horizontally arranged shift rod 24| extends in a direction longitudinally of the machine frame (Figs. 5 and 10). A pair of collars 242 and 243 are arranged in spaced relation on Ythe shift rod 24| and adjustably secured thereto by .setlscrews 242' and l243', respectively, the collar242 being arranged on the front side of the `upper endof the shift rod and the collar 243 being arranged onvthe rear side thereof :(Fig. 10) t t Referring to Figs. 5 and 10, when the shift rod 24| ismoved'to the left or toward'the front of the machine, the collar 243 pushes the shift arm 231 to swing this arm so that the lug 23S is pushed out from under the pawl arm 234. Immediately upon this freeingor Yunlatchingvof the pawl 232, its operative end is moved into engagement lwith a tooth on the continuously rotating ratchet Wheel 229 by the spring 233. This engagement of the pawl 232 and ratchet wheel 229 drivingly couples the disk 230 with the ratchet Wheel whereby rotationof the cam shaft |82, kcam shaft sleeve 220 and cams'I'M, ||2,A |34, 203, -BI and-2|9is effected. t

.At the end of one revolution,l the cam .shaft |82 and the Icams thereon .are stopped. TIVo this end, the-rearend of the shift rod 24| is suitably pivotally ,connected to the upper end of a cam operated reset lever 244 which has its lower end Vpivoted on the machine frame 35, as indicated .versely of th machinef A cam roller .2t-Bis car'- ried .by the lever A2 44 intermediate the 'ends' there- 4of and Ais engageable with an axiallyfacin'g cam 19 surfae241 formed on the rear side of the cam 8|. When the shift rod 24| is moved forwardly the lever 244 is swung so as to bring its cam roller 246 into engagement with the cam face 241. This cam face 241 is formed with an axially projecting salient part over which the roller 246 rides (Fig. 22) so that the lever 244 and the shift rod 24| will be returned to their original inoperative positions before the cam 8| has completed one revolution. During the return or rearward movement of the shift rod 24|, the collar 242 thereon (Fig. 10) engages and pushes the shift arm 231 to swing this arm back to its originalV position in which the lug 236 thereon will be in the path of the approaching shoulder 235 of the pawl arm 234 on the disk 236 which is rotating at this time. As the disk 236 completes one revolution the shoulder 235 engages the lug 236 to pivot the pawl 232 against the urging of the spring 233 whereby the operative end of the pawl is withdrawn from engagement with the ratchet wheel 229. This disengagement of the pawl 232 and ratchet wheel 229 breaks the driving couple to the disk 239 and this disk, the cam shaft |82 and the cams thereon thus come to rest after having been rotated one revolution.

In order to prevent over ride, to the extent permitted by the pawl arm 234 striking the periphery of the disk 236 or reverse movement of the cam shaft |82 at the end of its one revolution, means are provided to apply a slightly predominant torque to this cam shaft so that the shoulder 235 is urged lightly against and maintained in engagement with the lug 286. Such means are shown in Figs. 17 and 26 and includes spring loaded snubber arms 248 and 249. The snubber arm 248 (Fig. 1'?) is horizontally arranged with one end pivoted at 256 on the machine frame 35 and with its other end carrying a roller engaging the top of the cam |34 on one side of the axis of the cam shaft |82, a tension spring 252 connected to the bedplate 36 and arm 248 urging the roller against the cam. This spring loaded snubber arm 248 applies a torque to the cam shaft |82 to prevent this shaft from overriding. The snubber arm 249 (Fig. 26) inclines upwardly toward the cam |14 in a direction to one side of the axis of the cam shaft |82 and is suitably pivoted at its lower end at 253 on a bracket 254'secured to the bedplate 36 and carries a roller 255 on its upper end which engages the periphery of cam |14. A compression spring 256 is operatively interposed between the arm 249 and bracket 254 and operates to urge the roller 255 against the cam |14. This spring loaded snubber arm 249 applies a torque yto the cam shaft |82 to prevent this shaft from reversing.

Means are provided to intermittently actuate the shift rod 24| to permit the cam shaft |82 to be driven. Such means are shown in Figs. 5, '1, 8, 8A and 9 and include a timing gear reducer 251 driven by the low speed output shaft 58 of the main gear reducer 51 and supported on a base 258 secured to the bedplate 86 of the machine frame. The output shaft 259 of the timing gear reducer 251 rotates very slowly and has a trip arm 260 fast to the outboard end thereof. As viewed in Figs. 5, '1, 8 and 8A, the trip arm 269 rotates in a counterclockwise direction. A quickly vreleasable latch device is arranged adjacent the continuously rotating trip arm 268 for actuation thereby. This latch device includes a latch stop 26| supported on an upstanding bracket 262 mounted on the base 258. The rear end 26| of this latch stop 26| is-beveled and vis normally engaged by a shoulder 263' on a movable latch hook 263 which is pivoted at 264 on the free upper end of an upwardly and forwardly inclined arm 265. The center of gravity of the latch hook 263 is in rear of the pivot 264. 'Ihe opposite and lower end of the arm 265 is freely rotatably mounted on the outer end of a transverse pivot pin 266 suitably journaled on the base 258. The arm 265 is constantly urged to rotate about the axis of its pivot pin 266 in a counterclockwise direction as viewed in Figs. 5, '1, 8 and 8A by a tension spring 261. The lower end of this spring 261 is suitably connected to the machine frame 35 and the upper end thereof is connected to the outer end of a pin 268 carried by the arm 265. Referring to Fig. 9, the pin 268 extends completely through the arm 265 with an end projecting from each side of the arm and has an intermediate threaded portion 268 screwed in a hole provided in the arm. The outer end of the trip arm 269 is adapted to wipingly engage the forward edge 265 of the arm 265, as illustrated in Fig. 8, to swing this arm 265 in a clockwise direction against the urging of the spring 261.

A second arm 269 is arranged alongside the arm 285 on the inner side of and generally par-- allel with the arm 265. The lower end of this inner arm 269 is fast to the pivot pin 266 and its upper end is formed to provide a radially outwardly projecting finger 269. This nger 269 is adapted to engage a salient part 263" formed on the lower front corner of the latch hook 263 so that when the finger is forced against this salient part the rear end of the latch hook swings upwardly. On the other hand, when the finger 269 is out of engagement with the salient part 263" the latch hook 263 is free to swing downwardly by gravity when its shoulder 263 is disengaged from the end 26 of the latch stop 26|.

An upwardly and rearwardly inclined arm 210 is fast to the inner end of the pivot pin 266 and the outer end of this arm is suitably connected to the front end of the shift rod 24| (Fig. '1) A tension spring 21| is suitably connected to the arm 210 and to the machine frame 35 (Fig. 5) and constantly urges this arm to swing forwardly. Inasmuch as the arm 210, pivot pin 266 and inner arm 269 are a unitary structure, the spring 21| acts upon the inner arm 269 to constantly urge the same to rotate in a counterclockwise direction as viewed in Figs. '1, 8 and 8A. Limited relative rotative movement between the arms 265 and 269 is permitted by the inner end of the pin 268 being arranged in a slot 212 provided in the inner arm 269.

When the outer arm 265 has its latch hook 263 engaging the latch stop 26|, the inner arm 269 is forwardly displaced with respect to this outer arm the maximum permitted by the inner end of the pin 268 engaging the rear end of the slot 212. The latch hook 263 is held in engagement with the latch stop 26| by the spring 261. In this condition of the parts, as illustrated in Fig. '1, the finger 269 on the inner arm 269 is forwardly spaced from the salient part 263" on the latch hook 263 under the urging of the spring 21 As the trip arm 26|] engages the` outer arm 265 this arm is swung thereby in a clockwise direction as viewed in Fig. 8 and such movement also swings the inner arm 269 by reason of the pin 268 being arranged in the rear end of the slot 212. Such movement of the inner arm 269 also swings the arm 210 toward the rear of the machine thereby shifting the shift rod 24| slightly to the rear

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2769600 *Jul 16, 1952Nov 6, 1956Paper Converting Machine CoWeb winding machine
US2883121 *Oct 24, 1955Apr 21, 1959Hudson Sharp Machine CoEndless conveyor having web rewinder core shafts
US2970786 *May 22, 1958Feb 7, 1961Beloit Iron WorksAutomatic roll winder
US3058684 *Jul 10, 1957Oct 16, 1962Wellington Electronics IncAutomatic winding machine and method
US3127122 *Apr 20, 1961Mar 31, 1964 Rewinding mechanism for printing machines
US3228621 *Feb 5, 1964Jan 11, 1966Du PontWinding apparatus
US3361296 *Oct 18, 1965Jan 2, 1968Reynolds Metals CoCore orienting and feeding apparatus
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US4056918 *Oct 8, 1976Nov 8, 1977Kabushiki Kaisha Fuji TekkoshoWinding machine
US4581083 *Oct 18, 1982Apr 8, 1986Crown Zellerbach CorporationRoll product tail securing system
US5513478 *Oct 28, 1993May 7, 1996George Schmitt & Co., Inc.Method and apparatus for the manufacture of individual rolls from a web of material
Classifications
U.S. Classification242/527.4, 53/118, 242/533.1, 242/533.4, 242/532
International ClassificationB65H19/22, B65H19/29
Cooperative ClassificationB65H19/29, B65H2301/414421, B65H2301/41814, B65H19/2223, B65H2408/23157
European ClassificationB65H19/22A4, B65H19/29