US2564594A - Roll wrapping machine - Google Patents

Description

Aug. 14, 1951 H. E. CLARKE ROLL WRAPPING MACHINE 2 Sheets-Sheet 1 Filed Sept. 13, 1949 Nh mh k. um

INVENTmL Af/:Kazuo 5.6232165' BY v Z /W/ Aug. 14, 1951 H. E. CLARKE 2,554,594

ROLL WRPPING MACHINE I Filed sept. 13, 1949 d 42 4/ G @N 2 Sheets-Sheet 2 JNVENTOR. mazn i.' C'MRKE GENT l to handle.

machine which will. mechanically wrap large rolls Patented Aug. 14, 1951- Harold. E. Clarke, Three Rivers', Quebec, Canada, assigner to Canadian International Paper Com--A pany, Montreal, Quebec, Canada, a corporation, I

of Quebec Application September 13, 19.49, Serial No.. 115,411

2 Claims.

This invention relates to'newl and useful improvements inwrapping machinery and particullarly seeks to providea novel machinefor applying one or more oonvolutely-wound layers of wrapping paper around the outside of a large -rol1 of paperrsuch as newsprint.

vMachines havebeen heretofore devised for 4completely automatically applying such wrappers tolarge ypaper rolls but such machines have either proved tobe too.V expensive to warrant the cost of installationor have been too inflexible inthe sizes of paper rolls that they were designed This invention seeks to provide a of paper but whichis, so'` constructed that a mini- .mumnumber of movable mechanical elements `are involved in the yconstruction and operation thereof.

It is therefore an object of this4 invention.v to provide a novelY roll. wrapping machine which is adapted to.V withdraw wrapping paper from'` a supply roll, feed it= across` a glue-applying station and down tothe largeroll of paper around which the wrapper istol be placed.

Another object of this invention is to; provide a machine of the. character described inwhich upper drawrolls are yprovided for initially withdrawing-Wrapping paper fromfthe supply 4roll and feeding it to the wrapping station of the machine.

Another object of thisY invention -is to provide a machine of the character stated in whichl the largeroll of paper tobe wrapped is positioned onl a. pair of operatively driven carrierY rolls so that the carrier rolls, andpaper roll together cooperate to continue. the withdrawal of the Wrapping. paper froma'supply rollfthereof While permitting discontinuance of the operative drive of the initially employed upper draWrolls.

Anotherlobject of this invention is to provide av machine of the character stated in which a supply of wrapping papergis, carried on a; backstand ofv sufficient size that a plurality of rolls of wrapping paper may be supported'. thereon.

A further object of this invention is toproyide a machine of the character stated in which one of` the main carrier rolls supportingthe large paper roll to be wrapped is supported by a pivotal .gf-rame operableto move-the Wrapped roll of paper from its position on the carrying rolls onto a slightly inclined receiving floor from which the wrapped roll is removed for further nishing operations by crimping and heading machines.

f With these and other objectsin view, the nature ofi-which.. will' be more apparent, the invention vwillbe more fully understood by reteljence to the drawings, the accompanying detailed description,

and the appended claims.

In the drawings, f 'Y .v Y ,l Fig. 1 is atop plan view of a roll wrapping machine constructed in accordance with thisrrinvention;

Fig. 2" is a partly sectionalized side elevation thereof.; v

Fig. 3 is any enlarged side elevation of the. glue applicator and. drawroll elements, of Fig. 2,; and

Fig. l is` a fragmentary top planview of porp tions of the mechanism illustrated in side. elevation in Fig. 3. p Y Referring to the drawings in detail the invlention as illustrated is embodied in a roll wrapping machine which` includes. a main frame generally indicated at 5 which is formed from. structural steel and includes on each side a pair of upright girders 6, 6, horizontal spacing Agirders 'I and rearwardly.l extending girders 8, the middle and end portions., of which are supported by vertical girders 9,. The side` assemblies included by the n girdersy 8f and 9are held. togetherby horizontally disposedspacing members L!)v to form a backstand for the machine. The girders 8 are provided with a plurality of adjustable bearing assemblies I -I on one side and fixed lbearings l2 on the other side. As illustrated in Figs. 1 and 2 of the draw.-

ings` the four-rearmost bearing assemblies I IK and 1.2 areY so spaced as to support four supply rolls l i3. of wrappingpaper. The foremost pai-r'of-bearing assemblies Il and I2 carried by the rearwardly extending gir-,ders 8.. supports a transversely disposed shaft |24,v upon which. is mounted a plurality-of rolls. lliY ofy relatively narrow wrapping or banding paper usable fory ae purpose which will be. hereinafter more fully described.` The rear face of they upper partof one of theupright girders- 6. on. each side of the mach-ine isprovided with an. open` top` bearing i6. adapted to2 support a, transversely disposed shaft I-'l carrying afpluvral-ity. of rolls I=8.-of relatively narrow Wrapping or banding paper which. function in aV manner similar to the. rolls L5., as will also.. be hereinafter more fully described.

An idler roll. t9 is supportedl on bearings 20, 20 on the middle horizontal: members4 'I ofthe main frame. Immediately ahead of the idler roll I9 and; also supported upon. the same horizontal. girders 'I is aglue pot` 2l adapted to. hold glue or other adhesive for application to. the. strips of banding` paper to be withdrawn. from;Y the rolls I5. carried on theshaft I4. A fountainroll 22y is journalled in suitable bearings on; either end; of the glue; poty 2d;- and is partially. immersed in. ad-

I5 of banding paper. The shaft 21 is positively driven from the shaft 24 through the-medium of spur gears 21a axed to the shafts.

A rock shaft 29 is rotatably mounted on'th upper girders 1 in a position vabovefand slightly offset from the vertical plane passing through the shaft 21 carrying the glue transfer wheels. The

shaft 29 is provided with'a pair `of 'spac'edldee" pending arms 30, 30 which rotatably support the and 58 rotate in the same direction in order to provide for substantially positive rotation of the newsprint roll which is carried thereon for purposes of applying the wrapping paper thereto. The rearward ends of the rock arms 56 are operativelyucoknnected to ar pair of air or hydraulic piston and cylinder assemblies s othat the roll 58 may be raised from its`positin shown in Fig.

2 of the drawings to a position indicated by dotted lines which places it above the roll 53 a distance sufficient that a newsprint roll carried thereon will be rolled onto the machine floor as indicated Y by the dotted lineposition 6 I.

ends of a shaft 3I upon which is rigidly affixed" a web shifting roll 32. A forwardly extending arml 33 lis rigidly affixed to one Vend of the rock shaft 29 and is provided at its uper end with a chain 34 bywhich the rock shaft land its asso- 'cia'ted shifting roll 32 c an be manually manipu- A pair of triangularly shaped mounting lugs 35 'i are rigidly aixed to the forward sides'of one pair of the vertical girders 6 and are each provided with an upstanding portion 36. The bracketV portions 36 rotatably support a shaft 31 carrying a driven feed roll 38. The roll 38 is adapted to be "continuously driven from the reduction gear driving unit 25 through sprocket gears 39 carried by fthe shafts 24 and 31 and a sprocket chain 46.

* rock shaft 4I is journalled in the upper portion of the brackets 36 and carries adjacent each end thereof a bell crank generally indicated at 42 -having a relatively lshort depending portion 43 `and a relatively long forwardly projecting Yportion `44. vA shaft 45 is'rjournalled in the depending portion 43 of the bell cranks and carries an idler feed roll 46Ywhich is adapted to be moved into andy out of driven relationshipwith the roll 38 in order to initiate or stopfeed movement of the various webs of paper as will be hereinafter more /fully described. The forwardly projecting arms 44 of the bell cranks are spanned by a rigidly affixed rod 41 to form a bail from the central portion of which a chain 48 depends downwardly and provides the means by which manual manipulation of the feed roll 46 may be effected.

located immediately adjacent the lead pair of upright` girders 6. The pit 52 is proportioned tore- 'ceive vsuitable operatively drivencarrying rolls which support and rotate a roll of paper to be wrapped, as will be described in greater detail.

To'this end a relatively heavy roll 53 is rigidly aixed to a shaft 54 and adapted to be driven through the medium of a reduction gear motor drive generally indicated at 55. A fabricated rock arm assembly 56 is pivotally supported at its midy point on each end of the shaft 54. The forwardly projecting ends of the rock arms 56 rotatably carry a shaft 51 identical with the shaft 54 upon which is mounted a roll'58 identical with the roll 53. The roll 58 is positively driven from the shaft 54 through the medium of gearing generally in- "dicated at 59 so arranged that both of the rolls 5.3

VVA stationaryi'roller-type conveyor 62 is inset into the'buildingliloor in spaced parallel relation to the pit 52 andr provides the means by which fresh rolls of newsprint may be moved into position rfor wrapping operations on this machine. Asa'newsprint roll is moved along the conveyor 62 it is stopped in alignment with the wrapping machine" androlled into voperativeV engagement with the carrerrolls 53 and l58v across a hinged plate 63 which'spans the void between the edgeof the pit and-the associated surface of the carrier roll 53. A similar plate 64 isv hingedly secured to the opposite side 'of the'pit 52 land spans lthepvoid between the pit vwall and the' associated carrier roll53. yWhen this machine is prepared for operation a. plurality of the supply rolls I3 of wrapping paper is mounted on the back portion of the frame, a supply of the relatively" narrow rolls I5 of outer banding paper are mounted on the shaft I4 and a similar number of rolls I8 of the inner banding paper aremounted on the'shaft I1. InY normal operationfa web [of wrapping paper is led from only one of the supply rolls I3 thereof at aV time. With respect'to the narrow rolls I5 and I8 of banding paperV the supply rolls I5- areemployed as the outer banding wrappers for vall shipments whereas the rolls I B of inner banding paper generally are' employed only for export shipment.

Accordingly, the'use ofthe'banding rolls I8' is determined entirely bythe'nature of the shipmenttobe effected.I 1 f In order to prevent' the web ofl paper being pulled from the supply roll I3 from exerting too much frictional drag on the rolls I5 of banding paper an intermediate idler roll 65 lmay be mounted upon a suitable lstand 6'6 in such a man'- ner that the upper surface of the idler roll lies in the same horizontal' plane as the top surface of the supply-roll I3 when full. The paper web from the roll `vI3 thus passes over the idler roll 65 and the rolls I5 of outer banding paper and then it: passes 'under the rolls'l I8 of inner banding paper and the idler roll I9. The web is then passed upwardly over the web-shifting roll 32 and thence over the driven feed roll 38 and downwardly between the nip formed by it and the idler feed roll-46.v .At this Ypoint the web from the supply rol1jI3 is extendingdownwardly at the front end Yof the machine in position to vbe placed around a roll'of newsprint to be wrapped. The operator of the machine at this -time will manually applyra relatively wide stripe of adhesive to Ythe leading end of the lwrapper and lwill' pull down on the chain 48 on thebell crank 44 to move vthe idler feed roll'46 into pressure engagement with the driven feed roll 38 so that the web from the supply roll I3 will be positively advanced. As the lower end of the web comespdown 'into such a'- position that it can overlie the main carrier rolls 53 and 58 the operator will release the control chainv 48 torelieve the driving pres- The roll of newsprintY to bewrapped is then rolled from its position on the conveyor 6-2 onto av position where. it is supportedby the carrier rolls 53 and 58- and rests on the freel end of the wrapper. The dri-ving motor 55 is then started by suitable controls (not shown) to drive the carrier rolls and thus rotate the newsprint roll together with the wrapper from the supply roll I3 which will be drawn yalong the lpath previ'- 'ou'sly described as the result of the fri'ctional vengagement created Aby the weight of the news'- print roll on the carrier rolls. The motor 55 will continue to be operated until the desired number 'of convoluted wraps have"beenfrnadearoundl the newsprint roll and then stopped;

When outer and inner bands are to be applied simultaneously with the application ofthe wrapper from a supply roll I3 the-outer banding' wrappers will be fed from the under side of the supply rollsy I5, then under an idler rol-1*'6'I rotatably supported on the main frame beneath theA glue pot 2 I", thence upwardly over the web-shifting rollv 3:2 into juxtaposition on the under sid'e of the web being withdrawn from the main wrapper supply 'rollt I3 and from' that point on will, ofv course,

vposition shown in Figsa2 and` 3` of the drawings and the outer banding wrapper will pick up` adhesive from the applicator wheels 28 and will be adhered to the main wrapper I3 'as the combined webs pass over the driven feed roll 38. At such time as the machine is to be stopped for any appreciable length of time the operator merely releases the chain 34 and the natural tension imposed by the banding web I5 on the shifting roll 32 `will cause the roll 32 to be moved to the left as viewed in Figs. 2 and 3 and thus effect disengagement of the banding wrapper from the glue applicator wheels 28.

Whenever inner bands are to be employed the webs from the supply rolls I'8 of the inner banding paper are fed from the under side thereof to a position overlying the upper surface of the main wrapper web from the supply roll I3 prior to the time at which it passes under the idler roll I9 so that the inner banding paper and main wrapper will be maintained in juxtaposition and will be fed simultaneously by either the upper feed rolls 33 and 46 or the main carrier rolls 53 and 58 in cooperation with the newsprint roll being wrapped.

After the desired number of convolutions of wrapping paper have been applied to the newsprint roll and the driving mechanisms of the machine have been stopped the operator manually applies a broad stripe of adhesive across the front face of the combined webs as they eX- tend downwardly between the upper feed rolls and the wrapped newsprint roll and then cuts the combined web along a line approximately medially of the stripe of adhesive. The stubend is, of course, then wrapped around the newsprint roll to complete the wrapping operation and the cylinder assemblies 60 are then actuated through suitable controls (not shown) Ytorem'ove the wrapped newsprint roll from-v its position on the: carrier-rollsV and tov impart a moderate rolling motion of it along. the oor upon which the wrapping` machine is mounted so that it can be readily moved from the wrapping station toA a subsequent operating station where another machine will crimp the ends of the; wrapper in preparation to receive the usual rollheads. 1D

Byreferenc'e. toE Fig. 1 of Athef'draw-ings it will be observed that ivek of the-rolls I5 of outer banding paper and a simi-lar'number. of Arollsy I8 of the inner banding paper have been shown for purposes of 'illustration only.A The drawing; also shows that three glue applicatorwheel's 28 are mounted on their shaft 2-1. vIt'will be appreciatedthat the .number of glue. applicator wheels -28 which are positioned on the sha-ft 2'I` at any given time: will be equalonly tothe number of bands of outer wrapper that are to be. appliedto the newsprint roll.` Similarly, the rolls-V I5. of outer. banding paper will be placed inY proper alignment withy the glue applicator wheels-,Maud inv the'. event that there are more of the banding paper rolls carried on the shaft I4. than. is re.- qu-ired to be applied to` the newsprint rolls being wrapped the excess-rolls of kbanding paper serve merely asay reserve supply for continued operations ofthe machinery. The same arrangement is: true with respect to therolls I8.. of inner banding paper and to three additional rolls I3 of the primary supply of wrapping paper.v A renewal of the supply of banding paper rolls on their shafts can bey effected manually since. they are. relatively ylightfin weight,y butthe replenishment of supply of' the main rolls I3 of wrapp'ingpaper dueto their heavy weight must. be effectedby mechani- 'cal means, and to this end it. wil1"be observed that in Fig. 2 of theV drawings there is'v indicated at 68 a dotted line' representation of an overhead hoist with' anothersupp'ly roll of wrapping paper being moved into position on one of the roll mounts.

In the wrapping of newsprint or other papers which are shipped in large roll form it has been found necessary to apply not only a surface wrapper to the rolls but also to seal the ends thereof in order adequately to protect the paper. To this end when the wrapper is applied to the newsprint or other rolls the width of the web of wrapping paper should. be suiciently greater than the width of the newsprint roll that there will be a substantial overhang at each end. Thus after the wrapped roll of newsprint has been moved from the wrapping station to a subsequent operating station in the Vfinishing room the overhanging ends of the wrapper can be crimped down over the ends of the newsprint roll to protect the outer portions of the ends thereof and also provide surfaces to which adhesive can be applied for the application and retention of circular roll heads which complete the covering and sealing of the wrapped roll. In View of this re- A quirement it will be observed that the glue applicator wheels 28 of the instant machine Will a1- ways be positioned appreciably within the edge limits of the webs coming from the supply rolls I3 of wrapping paper and that as a general rule the span between the endmost glue applicator wheels 28 will be approximately equal to the length of the roll of paper to bewrapped.

It is, of course, to be understood that various details of arrangements and proportions of parts may be modified within the scope of the appended claims.

1'.*In amachine for wrappinglarge-rollsof paper, a mainframe, a supply f roll "of v'wrapping paper frotatably supported on said frame,"a` .pair

ofi-supply rollsofV relatively narrow outer band- -ing 'paper rotatably supported on same frame and align'ed inwardly ofthe ends of said Wrapping Ipaper rol1, the distance spanned by said banding paper rolls being substantially equalto the .Width of the paper roll to be Wrapped, means forfapplying adhesive to one face of each strip of banding paper as it is withdrawn from its supply roll, means to guide said strips of banding paper into juxtaposition with the web being withdrawn from said roll of wrapping paper,y a pair offeed-rolls for initially withdrawing paper vfrom 'all -of said supply rolls'a'nd for pressing the adhesive-coated strips ofv banding paper intoV adhering contact with said web of wrapping paper, said feed rolls including a driven feed'roll and an idler feed roll,

means to move one of said feed rolls' into and 'out of paper feeding engagement with the other ofsaid' feed rolls; a pair of horizontally disposed carrier rolls located beneath said feed rolls and adapted to support a roll of paper to be wrapped, means to positively drive said carrier rolls to continue the withdrawal of paper from Said supply rolls and effect the application of the same about the paper roll supported thereon, 'and separately controllable means to move one of said carrier rolls upwardly with respect to the other whereby toeffect the removal of the wrapped roll of paper therefrom.

"72. In a machine for wrappinglarge rolls kof paper, a main frame, a supply roll of wrapping paper rotatably supported on said framea pair 'fof supply rolls of relatively narrow outer banding paper rotatably supported on saidlframe and aligned inwardly of the ends of saidwrapping ,paper roll, the distance spanned by saidfbanding .of the paper roll to be wrapped, meansfor applying-adhesive to one face of each strip of banding paper as it is withdrawn from its supply-troll, meansf'for moving the strips of banding paper into andout of adhesive-receiving Contact with said; adhesiveapplying` means; means to guide said strips of banding paper into juxtaposition with ,the web being withdrawn from said roll-of wrapping paper, a'fpair of feed rolls for initially-,withdrawing -paper from all of said supply rolls-.and for pressing theVadhesive-coated strips of banding paper into adhering contactY with said lweb of wrapping paper, said feed rolls including Aafdriven feed roll and an idler feed roll, means to move one of said feed rolls into and out of paperfeeding engagement with the other of said feed rollsfav pair of horizontally disposed carrier rolls-located` beneath said feed rolls and adapted vto SupDOrt'a roll of-vpaper to be wrapped, means .topositively drive said carrier rolls to continue the withdrawal ofV paper from said supply rolls andeifect'the application of the sarne about the paper -roll supported thereon, and separately controlled means tomove one of said carrier rolls upwardly with respect to the other whereby to effect 4the removal of the wrapped roll of paper ltherefrom. Y Y y HAROLD E. CLARKE.

REFERENCES CITEDl The following references are of record in the V iilepf this patent: Y Y

' UNITED STATES PATENTS y 'Number Namev 'Datef f' '1,351,809V j *Sutherland sept. 7,-1'19'20 "1,570,266 Ljungstrom Jan. 19, 1926 l v1364,@81 Jones'et a1 June 17,3930

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