US1551985A - Wrapping machine - Google Patents

Description

Sept. 1, 1925.

- 1,551,985 J. FAULL WRAPPING MACHINE Filed Dec. 2.7 1922 z'sneets-sneez 1 V I I wNTO/Y 4 TTORNEYS Sept. 1, 1925.

J. IFALJLL WRAPPING MACHINE v f ned Dec. 2. 1922 2 Sheets-Sheet 2 '"H'IIIIIII limuusmmiaw [NVENTOR M ATTORNEYS v the folding mechanism byffollowers o'n'the' and sealed about the cartomfwhichfsecures I the wrapper thereon, feeding meehanismas passes the foldmg devices, with the result that actionofthe Patented Sept. 1, 1925.

SEALER 00., um, or na'r rnnicnnnx,

LIMITED o1 'MIQH IGAN y a Application fl 1d .Iiecember {'2} 11922.: ser al no. eagues." 7

To all who met may coo zcer'n f Be it known that LJ 0111 FAUI JIi, citizen of the United States and resident of Battle Creek, Michigan, have 'invented 'newand useful Improvements" in Wrapping Machines, which invention is set forth the following specification.

" The present lnvention is an improvement;

in wrapping machines, and articularly mac'h1nes n which cartons orot er articles,

like bread, are wrapped in waxed paper or other wrappers. v i

the cartons have been fed past elements of the clamp, s'eparated tier; -lthe Heretofore main conveyor chain; and it frequentlyhappened that, particularly with light cartons,

the same would become slightly displaced whereupon the folding mechanism would the -folding properly engage the wrap suit that the rear flap "wou d frequently not be folded against the, package at all midtfre-v (f uently the. flap would be inaccurately olded, dependent upon thedeg'ree of displacement of the package.

The-(object of the present nvention is to provide a feeding mechanismpositively con trolling the cartoufrom the tim'eit enga es the wrapper until the latter has'b'eeil lfol' ed a uniform and excellent sealing of the'carton in the waxed pa er or'other wraper;- which is. self adjusta 1e to enga'g'e'an -pre vent damage to cartons varying in size or shape; which eliminates all vdanger of dis placing the carton with. its atten'dant' de' fectivesealing; and all Without anyfsacrii 'fice ofthe speed of output and by the pro vision of a simple and eflicient mechanism.

By the present invention thecarton, with is fixedly held 'by the folding mechanism on thewrapper cannot displace or change the POSltiOIl Of the car} ton with respect to the feeding mechanism.

A uniform and efiicient wr'a'pping is thus efl extending fected at high speed;

not act effectively and the carton would not the case; when wrapping small cartons; as 1t was found that the tucker of .mechanism would engage the v wrapper with sufiicient forceto displace the carton sothat the folder member would no't er, with the re--" ncnmhn, a-ramunnsnm neso'ciamimn The inventionre ferenceto the accompanying E draw ng's illustrat ng oneexpression of the-ji i v'e ideafahdwherein- Fig. 1 is a longitudinal elevation; partly "in'section, showing one end of thex ca-r'ton conveyor-{and associated mechanism; r F g.2 is a'deta'il perspective showing of the followers provided-With thecl'amprofr thepresent-invention; a Fig, '3- 1s "a transverse elevation, partly in section,- showing thecarto'n inieed'yand;

Fig, 4 is" a detail perspective {showings-the purpose of'clear illustration 1 5 "wherein like -'Referring to. the dra rigs, reference numerals indicate-likewparts, '5

1 indicates any suitable table or siipport along which the carton :or -li-ke -a"rtic'le is progressed past a "suitable wrapper folding mechanism or. other 1 instrumentality for vLop'jerating Jon the moving carton oratrticle'l 1 {The folding mechanism herein illustrated comprises; rlon each side of the table" or "support fan zu piper tucker finger '6 and a filower tucker "e'rv 7,an upper folder fin er Band =a-lower' fo ('1- er fin r 9. Such fol er mechanism is gpre'ferably offthewe'll-known typei sed in the Johnson wax-w'ra per macni-negaad;need-- not be specifically escribed' It is 'stjl fiiient to note that the upper folding mechanism rotates in a -counterclockwi's'e'.*di rection around the s'haftlO and that the lo'weryfo lding mechanism rotates in ac" tio'n" around the shaft '11. Ilhe, folding mechanisms Me -driven three h shafts and 13 and bevel gearing '14 an rs'mmany suitable sourceof. power. 1 i.

- .A conveyorglti, preferably of the chain type, continuously past. the folding mec am'sm; This-conveyor passes over suitably sup orted sprockets '17 one-of which is'iinounte --on shaft is (gFi. 3) driven through suitable -means,'a"s *sha 19 and bevel gears 20 and-21. This-com "veyor has/mounted- -there'on a plurality of suitably spaced followers, each preferably c'onslsting :of Y a base portion "22,1; standard '23 and a follower-plate 24, these parts being suitably secured v together I and to the chain conveyor. I p f Each follower standard is rovided rw-i'th a'clamp 25 ivotally. mounted-on a pi'n 26 rough suitable apertures in lockw ise "direc- 1progresse's 'theear'tons v ears 27 formedon the front face of a slide 28 having brackets 29' which embrace the follower standard. The clamp is independently adjustable to engage cartons varying in sizeor shape, adjustment of the clamp being automatically effected by the carton and suitable means here shown in the form of a spring 30carried by the pin 26,

same into. and out of engagement with the partially wrapped carton. As here shown,

a spring 31, one end of which is anchored to the follower and the other end to extensions 31 formed on the slide, moves the slide and clamp away from the carton engaging sition, andra pair of cam tracks 32 an 33,

slide by reason of the engagement of the Any suitable 4 tons into position to be engaged by the folsuitably mounted onthe frame of the machine, move. the slide and clamp into engagementwith the top and front faces respectively of the carton. A pair of rollers 34andl35 carried by pivot pin 26 engage the ca m rails 32 and 33 respectively. If desired,

vasingleroller and a single cam track ma be employed. The cam tracks are inclin 'FigwL-at 38.to force the clamp and slide downwardly, and at 39 to permit the springv 3l-ito""ele vate the slide andclamp. Prefer- ,ably, a cam 40 is associated withthe incline '39 so that-the elevating of the clamp and roller 34 with said cam 40 is rendered more positive. 1

means formoving the carlowers may beemployed; preferably the usual infeed belt 41 and elevator 42 are used, the wax-wrapper being fed into position over the elevator and the wrapper being folded under the carton in the usual .manner and by the well-known mechanism. The follower movesthe carton, with the I wrapper around it,.from the. elevator 42 and mg one end 0 moves the partially wrapped carton forward against the finger 43 pivoted at 44 and hava spring 45 secured thereto, the other end of said spring being suitably 1 anchored.- The finger yields and the carton -moves under it, the finger being forced-to the position shown in dotted lines in Fig. 1.

- Thecam action is so timed that the slide and I clamp move downwardly toward the carton the finger moves over the top thereof, so.

i that-just before the carton passes beyond control of the lingerv the curved edge of the clamp slides over the front ed e of the carface of the same.

ton and the clamp securely grips the front Arms 31 of the slide preferably engage the top of the carton,

providing additional clamping action of the positively controlled at every stage of the operation, it is possible to materially simplify the construction of the machine by eliminating the guide rails 46 if desired. Further, the fixed finger 47 and the pivoted finger 43, which receive the carton from the elevator, may also be removed if desired. This, however, necessitates a positioning of the cam incline 38 slightly more to the left as seen in Fig. 1.

The operation of the device is asfollows:

The cartons are carried by the infeed belt 41 from any suitable source of suppl to the elevator 42 which raises them into t e position shown at the left of Fig. 1 between the fixed and yielding fingers, the carton at the same time being enveloped by the wrapper in the usual manner. At this moment the follower moves the partially wrapped carton against the yielding finger 43, the cam inclines operating on the rollers 34 and 35 v.to move the. slide and clamp downwardly toward the carton. The clamping action is completed just before the carton passes beyond control of the yielding finger 43 and the carton, withthe wrapper, is then fixedly held as it is progressed past the folding mechanism and the hot plates (not shown). Thereafter, the. spring 31 and cam 40 disengage the clamp from the carton, which latter passes on to the delivery belt.

When it is desiredto feed cartons-varying in size or shape past the folding mechanism, the clamp automatically adjusts itself to the size or shape of the carton, thereby preventingapplication of excessive pressure on the carton with the attendant damage or mutilation thereof. The clamp is therefore independently movable with respect to the slide and follower and, when the clamp is moved into engagement with a carton irregular in size or shape, automatic adjustment of the clamp is effected by means of the carton and the yielding action of the spring 30, the latter permitting the clamp to move in accordance with the size or shape of the carton while at the same. time exerting suflicient pressure to hold the carton with the wrapper securely against the follower.

As a further means for adapting the mechanism above described to accommodate cartons ofvarious sizes, the .cam' tracks 32 and 33 are attached to the frame of the ma.-

chine so that the same may be adjusted vertically, the adjustment of the cam tracks being effected by means of bolts 16 which extend through elongated slots 47 in the upper ends of brackets 48 preferably formed integral with the cam tracks. .It Will thus appear that the cam tracks may be adjusted to any desired height, in accordance with the size of the cartons and that suchadjustment will determine the extent of vertical movement of thel slide 28 and clamp 25 to insure proper engagement of the latter with the carton.

Indeed, the invention, while solving an important and diflicult' roblem in wrapping machines, is not, in lts broadest aspect, limited to wrapping machines but isequally applicable to any machine in which it is' desired to'securegly same time fee ing it past aninstrumenta-lity for operating thereon.

-.While one expression of the inventive idea has been heretofore described and illustrated in detail, it is to be understood that the invention is not limited thereto,

and that the inventive idea may beembodied in various mechanical expressions within .the limits of the appended claims.

What is claimed is 1. In a machine of the charaiiterdescribed," the combination of folding mechanism,

means for feeding cartons past said folding mechanism including a follower engaging on said' slide and automaticallyengaging another face of the carton before the operation of the folding mechanism and means for automatically disengaging said clamp,

after the operation of the,folding mechanism. i

2. In a machine of the character, described, the combination of folding mechanism, means for feeding cartons ast said folding mechanism including a ollower enga ing one face of the carton, a slide movab e lon itudinally with respect to the follower,

a c amp pivoted to said slide, means for automatically engaging said clamp with another face of the carton before the oper-- ation of the folding mechanism, and means for automatically disengaging said clamp after the operation of the folding mechanism.

3. In a'machine of the character described, the combination of folding mechanism, means for feeding cartons past said folding mechanism including a follower engaging one face of the carton, a clamp slidably and pivotally mounted on said follower,

means automatically shifting the pivotal point of said clamp and causing the same to engage another face of the carton before the operation of the folding mechanism, and means for automatically disengaging hold an object while atthe 'mean'sfor automatically movingsaid slide and clamp whereby the latter iscaused to engage" another faceof *said'carto'n prior-to gaging said" clamp from the' 'carton" after operation thereon; "by the folding/mechanism.

, operation thereon by the foldingmecha- "nism, {and means for automatically *d'isen- 5. In'a machine of the' character described,'-

the combination of folding" mechanism,

means' for feedingcartons past said folding mechanism including a follower enga .f'ing. one face of the carton, a slide, means automatically moving said slide toward the carton prior'to' operatio'nf'thereon bythe folding mechanism, means Cai'lll-ILd by' the slide 'yieldingly engaging another face of the carton during operation thereonyb'y the cally moving said slide away 'f'ron'i' the carton after operation of the folding mecha- 6., In a machine of the character described, the combinationofa conveyor, a follower "thereon to engage: one face of the carton, ffoldm 'mechani'sm past whichthe .fcartons are fe by said conveyor, a-slide' carried by the follower and provided 3 with a' yielding clamp, means automatically moving saidi. slide toward" the outer" end-- "of" the follower to c'au seengagement of the clamp with another face of the carton prior to operation of the folding'mech'anism, and means automaticall moving said slide toward the inner end of tlie follower to disengage said clamp from the carton after operation of the foldme'chanism thereon. In a machine ofthe character described, the combination of a conve 'or, afollower thereon to engage the rear ace of the oarton to be wrapped, a'member carried by the follower and movable longitudinally thereon, a clamp ivoted on said member,

means automatica ly- 'mo'ving said memberand clamp into engagement with'the top and front faces of the carton prior to operation of the folding mechanism, and means automatically disengaging said member and clamp from the carton after operation of the v folding mechanism.

8. In a machine of the character described, I

the combination of folding mechanism, means for feeding cartons past said folding mechanism including a follower engaging the rear face of the carbon to be wrapp and automatically operable means enga ing the top and front faces of'the carton tofiol foldingmechanism, and means automati the same securely against the follower as the carton is fed past the folding mechanism, said means comprising a member carried by the follower and movable longitudinally thereon and a clamp pivoted to one side of QSaid memberl. t V

p :9. 111 a machine of the character described,

,ffoldi'ng mechanism, means for feeding cartons past 'saidmechanism including-"a follower engaging one face of the carton, amember having translatory movement with respect tosaid follower and provided with a; carton-engaging clamp, automatically adjustabler to the size of'the carton, means moving saidmember. and clamp in one do j rec tioni to cause; engagement of the latter 1 witll another' face of the carton prior to op me'ans.. m v1 20.-

eration of-i the folding mechanism,' and tliegoppqsiteldiiection to disengage the latter r 10. In a machine of the cliaraeter deg scribedrfolding mechanism, means for feed.- an-gcartons. past said mechanism including a-gfollower. engagingone face of the carton,

automatically operable means engaging the carton before the same reaches thelfold- .ng. eO anism and dis ngaging he carton after {the same has'passed said mechanism, said, means-[comprising a, spring-actuated clamp slidably andfpivotally mountedon said follower, and means, for imparting the follower,

111 ,In combination, wrapper folding translatory movement; to said clamp alongmechanism, means, forfeeding cartons with wrappers thereon to said" mechanism including a follower engaging the envelopedcarton, and means preventing relative displacement of the carton and wrapper comprising a member having translatory movement with respect. to said followerand' a clamp pivoted to said member and operating on movement" of the latterto engage and securely hold the enveloped carton against said follower.

172 In combination, wraper folding mechanism, means for feeding articles with wrappers thereon past said folding mechanism including a follower engaging the article .said member and clamp 'in' nism including'a follower engaging the arblClB'Wlllll thewrapper, a member slldably mounted on the follower, a spring-actuated clamp pivotally mounted on said member for engaging the enveloped article before the same reaches said mechanism and disengagingsaid article after the same has passed 'said mechanism, the spring of said clamp adjustingthe same to prevent application of 'excesive pressure on the article by the clamp.

14'. In combination, a, conveyor, a flight or follower carried thereby, a member slidably mounted on said follower, a clamp pivoted to said member, means controlling movement of said member and clamp toward and away from" the conveyor, and means control1ing-movement of saidclamp toward.

and away from said follower.

15.. In a machine of the character described, the combination of foldingmechanism, means for feeding cartons past said folding mechanism including a follower adapted to engage one faceof the carton, a

slide movable longitudinally with respect to said follower, a clamp pivoted to said 'sl'ide, and means for automatically engagingsaid clamp with another face of the carton before the operation of the folding mechanism and for disengaging the clamp after the operation of said mechanism, said means being adpistable where-by the extent of movement of said clamp may be varied to accommodate cartons of different sizes.

In testimony whereof I have signed this specification JOI-IN FAULL.

Images