US1650803A - Wrapping machine - Google Patents

Description

Nov. 29, 1927;

D. D. PARKER WRAPPING MACHINE 61cm maq D. D. PARKER WRAPPING MACHINE Nov. 29, 1927. 1,650,803

Filed Aug. 24,1923 5 Sheets-Sheet 2 D. D. PARKER WRAPPINF MACHINE Nov. .29, 1927.

Filed Aug. 24, 1923 3 Sheets-Sheet 3 7 handling straight or flattenedcans, and even a with this typelof can. the closure of the Patented Nov. 2!);1927.

a UNITE-o s T, @TES 1 PA ar a listener n PARKER, or Etna, YORK, assienon '10- nun/r nacnrnn COIVIPiANYi INCORPORATED, A CORPORATION OF MARYLAND.

WRAPPING irracnrivn,

Application filed Augusta, 1923. Serial no. 659,063.

This invention is an improvement on the 3 machine described and shown Yin, United States Patent no. 696 218, March th, 1902,

to lvhitehurst, et a], This patent is entitled Labelling "inachine though the machine which it describes-end shows might more properly be termed awrapper than a labeller'in that it Wraps and folds a paper cover which entirely enclosesthe cansboth as to their cylindrical sides and the flat endsjas distinguished from the labelling machines which merely'roll or Wind a strip of paper which serves asa lahel about the cylindrical surfaces of thecansr I The machine referred to operates somewhat after the-mannerof alabellerin that a the cylindrical cans are rolledthroughthemachine by contact Withan endless beltjand as they pass, each can picks u a sheet of paper or wrapper, which is Wound or rolled about the cylindrical surfaceasthe can rolls forward along the Ways; but the Wrapper. difi'ers from theaordinary laheller in that the I p thea isofthe pre'sse'r roller forming part fof my irnprovernent,

or turning the edges of the paper in to.

cover the circular ends of the cans. I a

The present invention relates tojthis featurelof. the machine, i. e., to the mechanism for folding andnipressing the edges of. the paper thus turned in tocover the ends of the cans.

tori-ed to, is, however, merely adapted/tor \vrapper formed by turning in the edgeportions over the circular ends ofthe cans, Was

not quite sufliciently rolled and pressed to give in each and every presentahlepaokage. pp The object ot the' presentinventionist0 produce a machine or tosoimprovethemainstance a neat and chines in existence that they will IEOlClfELn (l press the paper about; the ends, giving a j I I p 7 .EZ spaced slightly Lapart for propelling the 1 cans through thei' 'nachine for the greater "portion of the? length thereof, and a central a feed helti3 which. engages the cans nearthe; end Off the traverse, bringing them into the depression in theends, such as the sanitary cans and other canalarge numbers ofjvvhich are made Wit-lTSLtCh a depression; a slight do pression being produced? in practically all; cans by the vacuum incident to cooling,l so" that even with the supposedxflat-ended cans "cans. i

In the accompanying draWingI haveillus trated a machineembodylng my invention side 'elev'ation showing the front'or delivery inFigurel, is in structure and generaloperthewrapping op' afl .i apt t6 be ogre or less defectiveWit-h the oldmachineon ac I v i count of failure to properly press the wra is folded over theends of: the -Y per: when p the preferred form.

In t lrawing Figure 1 isa fragmentary 'end portion ofthe' machine.

Figure 2 is an elevation looking atthe machine from the right as it is seen inlFigure 1, 1. e., affront end elevat on.

Figure 3 is a slightly enlarged View correspending to Figure 1, a partially wrapped it can 'inthe process of pressing the Wrapper at the ends being shown in the grip ofthe rollers, the can and jwrapper being sectioned for convenience of illustration and the view being broken awayfa's to both the can and the roller, only one roller being shown.

Figured is a sectio'ntak-en on a plane'of Figureh is a sectionthrough'theroller on i Figureh s a section showing one of the" end oftheapresserrollerspindle,and

Referring to the dravvin'gby numerals,

machine which a is i'r'a'gmentarily illustrated deliveryrollers, the same heingtak'ennona 5 OfftheaXiS. I l I I v Figure-7 isan elevation shovvingtheman- V a a a neeermeunan and supporting the upper 'llhemachine illustratedjin the pat/ent're 1 a- Figure an a plan of thesa-rne. a

ation substantiallythe' same as 'thatshovvn i f in'the patent above cited, in that it has-longitudinally extending Ways, ,1, along which the cans :roll, propelled a feed belt 2 which engages them lfrom; above. In the present instance there are two feedi belts =2,

hiteof the delivery rollers 4, see" particubelts 2,. ,i2 p nc the shaft; ather e f, [to

, inches back of the pulleys'l', 8 and so placed 7 that the bottom reach of the delivery feed I belt is" but slightly above the level of the' sp1ndle 25 carr1esnear its upper enda sleeve "34, which'is 'circuinferentially grooved at 35,

operative portion or, ottoin reach of the "mil-ill feed belts 2. 2.

. kGo operating with the delivery belt is 'a yl?1ding t an, support flO VhlCl'l is" vplaced parallel i to and between the ways 1, being .p i vgtallygnounted on bolt 11 seatedin'the frame and extending "transversely. ,lAs

V sho wn; the support is in the, form. of la y deverwwhich f extendsLboth forwardly and rearwardlyiiem thqpivotal bolt lL; The forward end of the. member 10 is: supported 1 on ,a'hellica'l spring 13 in asuitablesp'ring socket 141: secured-to'the frame, the spring being centered and aligned byineans'of a spin 15" whic h is. vertically placed in the socket and surrounded-hy-the spring, the,

upperendof the pin being threaded into u'the s upportfatslfi and'the lower endof the j pin'being'pas sed through an opening 17in ,tlie bottom of the socket through which it jpass es-frejlyflhe upward niotion of the pin :5: {being limited by nuts l8 threaded on its lower.fendoutside the socket, and hearing against the portion of the socket adjacent the opening. The forward end of, thesup port includes a; raised portion or hill 19 over i which the cans passintothegrlp of the de- .livery rollers'ashereinafter described, .The

delive'i yrbelt,engagesflthe -can packages firmly as these are then'raised bythesupport.

, y 'gAdjacent 'the have sho wn plows or f dogs 6 for turning in the edges of the wrap- Qp ers as t hecans approach theldeli very end ofitheimachineJ 'inechanisrn for feeding and presenting the wrappers v is "not A illustrated." f. r 1 '1 r ",At'the rearend; of the machine, directly in transverse alignment; with the axes of the .1 pulleys 7 'and 8,}Ihave shown at each side of the, path of the cans, the'deliyery' rollers 45, 4; 3 These are mounted each on a vertical 36 share sol-spindle 20,'see Figure Leach shaft vQicfarijyi 1 1g a bevelled gear 21 se'cured thereto,

which inturnengagesa smallbevelled gear I 22Lsecuredjto the pulleys'T, 8'ortl1e shaft 9 e5 her'eoffi p 1 sh'owi Dresser roller's'i25, '25v :whicli' are yield- Arse-wed a teases rollers l have Kingly mhu nted 'to swing; iii a 1 transverse Qplane; 'iIii the' formQofjtheinvention shown {these f rollers are mounted Eon: vertical spin :d1es '2 6,";eafcl1 of wliiclrhas a hearing at. its

lower end 1 027 in a suitable bearing block Tsecuredflto the nam in any 'suitable manner bya bolt 28. QThe spindles are mounted 3 atftheirilpper 'ends;inbrackets QQ'secured y to*the' 'frain'eby'bolts 30,'see*Figures-7 and&

the brackets bein slottedor, provided with slightly elongated apertures32, which permit'a slight transverse play, so that the rollers yield outwardly response to theypressure of thefrollers against the cans or the reaction the same.

- Intlie'form of the invention shown, each which groove engaged by a'spring wire 36 which encircles the sleeve, and which, as shown, is bent back upon itself substantially in the form of'afU,being also looped at 37 and 38 providing for engagementby screws, by means of whiclr'it is secured to the bracket. 'Pliesp1'ings'36tend to thrust the rollers or the upper ends of the spindles in- )vardly toward the center of the ways. The sleeve 34 may also act'as a bearingfor the roller spindle. The spindle is held-in posi-' ,tion in the form of-the invention shown, by -a clip 40, see Figures 7 and 8, securedlby screws'l and 42. The clip may be removed i1'0l11 the path of the spindle by removing either one of: the screws 41' and 42, and swinging the clip to the right or" left. The spi n('lle and roller are r'e'l'noved'by raising them 'untilthe spindle isreleased fronithe bearing 27. y

The delivery roller 4 and the presser roller 25 are ofinterest'. These rollers are formed "with a wood or metal body, or. center portion A4, 45. Referring to thercspective rollers, which may be formed on or secured to the zrespective spindles 20 and 26, the body or made of a single, piece of matcrial, in that i there 'is no tendency for it toerack or break into segments after the manner'of such rollers. -The'ou-tcrca's1ng or jacket hasnot only great flexibility but" considerable tensile strength, and; the" 111110.1 f.portion having greater resistive block rubberi Having particularpreference to Figure 4-, it will be noted that the-'pifesser roller is of increa'sdflizimeter'or' bellied out centrally,

qualities-g than ordinary enlarged portion of'the corebeing indicated by reference eharaeter'48, and the enlarged portion of tllQOlllTBl diameter-by reference character 50, It will befrirt-her noted from Fi ures that r the enlarged portion' of the "roller," corresponds in length,- measured in the direction of the z i:-iis,*to'-the: diameter of thedepressed portions of the "cans' bein'g treated," tliouglrthe machine: is capable of treating can's, having aconsiderable varia tionas-to'the 'd-iameter, the import-ant point andifor the greaterportioniof its lengtlnthe ill being that the enlarged or bellied portion of the rollers '25, in treating the cans with the depressed or hollowed out head portions, shall enter into the hollows or depressions, pressing and setting the folded edges of the Wrappers 56 which cover the ends of the cans, it being understood that the edge portions of the wrappers be coat-ed with paste or cement so that one function oi the presser rolls is not only to press the creases in the materials, completing the folding 0P1 oration but to press" the layers of paper together, giving the paste or cement an opportnuity to set. The presser rollsthus formed and mounted, enter and completely fill and contact with the entire end surfaces of the cans, engaging the entire area of the depressed portion, even though there be some considerable variation in the diameters of the cans Wrapped, the variation being provided for by the flexibility or" the roller, and further the cans dwell for a short time between the presser rollers providing for setting of the cement andcreases.

In the operation of the machine the cans are led to the Ways in any suitable manner, a supply of Wrappers being maintained in or directly beneath the path of the cans as described inthe patent above cited, or in any preferred Way. The cans may be touched with adhesive or other ise caused to take up the Wrappers as they pass, the rolling motion of the cans causing the Wrappers to be rolled about thecans. In this operation Wrappers are, as aforesaid, provided which are of greater Width than the length of the cans, so that when the W ppcrs are rolled about the cans as 'd scribed, the edge portions project beyond the cans. These edge portions are folded in by contactvvith the plows 6, see Figure 1, immediately following which operation thecans are raised by passing over the hill 19 on the pivoted support 10, in \vhicli portion of their path they are held between the short tightdelivery belt 3, and the support it), w ch is spring-pressed by the springs 13,. as pre viously described, and the action of the delivery belt 3 carries, and to some extent,

forces the cans into the bite of the delivery 7 having enlarged central portion adapted I to receive and engage the. cans, pressing rollers l which engage the cans by their end surfaces, pressing them to suclrextent as the straight formation of the rollers permits and holding them in the elevated position to which they are raised bythe support 10, so that while gripped by the rollers they are out of contactvf'ithfthe support and the Ways, and thus relieved trorn any "tend y to rotate as thebelt 3 turns upward immediately beyond the bite oi the delivery rollers 4. The delivery rollers & in turn deliver the cans thus Wrapped one at a time to the bite of thepresser' rollers 25, Which as aforesaid enter the depressions in the llGllOlV-a headed cans, engaging the entire surface of the hollowed portion or the Wrapper folded over the same, completing the pressing operation asto the folded ends o l the Wrappers, and setting the cement.

It is further of interest that the resser rolls, not being driven, have no feeding or delivery actioinso that each can dwells in the bite of these rollers until it is pushed forward by the can next delivered by the delivery rollers. This dwell gives an opportunity for the paste to set, and completes pressing of the folded portion. The yielding action of the rollers provides for a variation of the length of the cans, and equalizesthe pressure applied. It is of interest that the short 7 delivery beltfl is placed slightly above the level of the feed belt :2, engaging the as they are raised on the hill 19 of the support with considerable tension,1nore than be applied by the longer belt and deliveredahnost positively by the action of the belt and the support intothe bite of the delivery rollers l.

1 have thus described specifically and in detail a portion of a inachine embodying my invention in the preferred form, in order that the nature and operation of the same having their axes. vertically placechi and means for rotating said rollers to press the Wrapper on the ends of the cans and deliver the cans. v i

2. In a machine for rapping cans, ways,1a' support having a raised portion to raise the cans before theways, means for feeding. the

cans along the Ways and. support, means for folding the edges of the Wrappers over the ends of the cans, and a pair of presser rollers placed with their axes vertical and their end portions as they are delivered from the loite of the feeding mean-s. a a I 3. In amachine for, Wrapping cans, an elongated support, an endless belt for feeding the cans along the support, folding means at the sides of the supportto engage and fold the edge portions of wrappers over the ends of the cans, means for raising the cans as they 'passthefolding means, a pair of delivery rollers having their axesavertically placed ,to engagejthe cans by the 'endsur- 7 fold the edge portions of wrappers over the ends of the cans, means for raising the cans as they pass the folding means, a pair of delivery rollers having their axes vertically placed to engage the cansby the endsurfaces, and means for driving said rollers, advancing the cans and holding them in (raised position so that they are out of contact with thesupport, and a pair of presser rollers beyond the delivery rollers having their axes likewise upright and adapted to receive the cans from the bite of the delivery rollers, the presser rollers being idle, so that each can dwells therein until it is pushed forward by the next can delivered by the delivery rollers, both sets of rollers serving to press and set the Wrapper where it is folded over the ends of the cans.

5. In a machine for wrapping cans, an elongated support, an endless belt for feeding the cans along the support, folding means at the sides of the support to engage and fold the edge portions of wrappers over the ends ofthe cans, means for raising the cans after they pass the folding means, a pair of delivery rollers having their axes vertically placed to engage the cans by the end surfaces, and means for driving said rollers, advancing the cans and holding them in raised position so that they are out of contact with the support, and a pair of presser rollersbeyond the delivery rollers having their axes likewise upright and adapted to receive the cans from the bite of the delivery rollers, the presserrrollers having a flexibly supported surface and being of enlarged dimension intermediately, so that they enter and fill the'hollows of cans having depressed end portions, pressing and setting the wrapper' Where it is folded over the ends of the cans.

6..In a 'machine for wrapping cans, an elongated support, an endless belt for feeding the cans along the support, folding xport,.aseeond feed belt above and co-operati'ng with said, support, delivery-rollers hav- 7 ing their axes vertically placed, receiving the cans from the raised portion of the support engaging them by their ends and advancing them at the higher level to which they have been raised, and means for driving said rollers, the rollers serving to press and set the wrappers where they are folded over the ends of the cans.

7. Ina machine for wrapping cans, an elongated support, an endless belt for feeding the cans along the support, folding means adjacent the support to engage and fold the edges of the can wrappers over the ends of the cans, a yielding support beyond the folding means having a raised portion to raise the cans above the level of the support, a second feed belt above and co-operating with said support, delivery rollers having their axes vertically placed receiving the cans from the raised portion of the support, engaging them by their "ends and advancing them at the higher level to which they have been raised, means for driving said rollers, and presser rollers likewise mounted with their axes vertical, so that they engage the ends of the cans, the presser rollers being mounted to yield laterally and being of increased dimension as to their central portion, so that they enter the hollows in the ends of the cans having depressed end portions, pressing and setting the can wrapper where it is folded over the end of the can. I

8. In a machine for wrapping cans, an elongated support, an endless belt for feeding the cans along the support, folding means adjacent the support to engage and fold the edges of the can wrappers over the ends of the cans, a yielding support beyond the folding means having a raised portion to raise the cans above the level of the support, a second feed belt above and co-operating with said support, delivery rollers having their axes vertically placed receiving the cans from the raised portion of the support, engaging them by their ends and advancing them at the higher level to which they have been raised, means for driving said rollers, and presser rollers likewise mounted with their axes vertical, so that they engage the ends of the cans, the presscr rollers being mounted to yield laterally and being of increased dimension as to their central portion, so that they enter the hollows in the ends of the cans having depressed end portions, the presser rollers being idle, so that each can dwells therein until advanced the pressure of the can next advanced by the delivery rollers.

Signed by me at Elba, Genesee County,

State of'New York, this 20th day of August, I

DELBERT 1).. PARKER.

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