US2400682A - Wrapper folding mechanism - Google Patents

Description

5 Sheets-Sheet l W. B. BRONANDER WRAPPER FOLDING MECI'IA'NISM May 21, 1946.

Original Filed Feb. l2, 1942 May 21, 1945- w. B. BRoNANDr-:R

` WRAPPERFOLDINGMECHANISM Original Filed Fb. l2, 1942 3 Sheets-Shed;4 2,.

ATTORNEY Patented May 2l, 1946 UNITED STATES Y WRAPPER FOLDING MECHANISM Wilhelm B. Bronander, Montclair, N. J.

Original application February .12,` 1942, Serial No. 430,566. Divided and this application January v 26, 1945, serial No. 574,723

a claims.

This invention relates to an improvement in a wrapper folding mechanism shown yin my copending application for patent Serial No. 430,566,

Figure 2 is a plan view `of some of the parts shown in Fig. 1;

Figure y3 is a sectional elevation takensubstan-i tially on line 3 3 of Figure ,1;

Figure 4 is a sectional elevation of Asome of the parts shown in Fig. 1,-shown in diierent relative positions and illustrating lthe operation.

Figs.v5, 6, 7 and 8 are perspective views of one end of a package and show successive stages of the wrapper fold. l

In the `aforesaid application I have shown inI detail a mechanism by means of which a wrapper l is folded arounda package and positioned in an intermittently rotatable turret wheel comprising two laterally spaced side members 55, 55 mounted i 30 of which folds is shown in Fig 5 The upper on a shaft'56. 'I'hese side members are provided with alined, exactly similar pockets P which receive the articles vand thewrapper which are folded over the front edge and the top and bottom of them. vThe shaft 56 is driven by a main shaft 15 through which form no part of this invention. The shaft 15 is driven from any suitable source of power. On it is a gear 16 which meshes withla gear 11 carried by a Shaft 18.

As the articles are carriedaround by the turret wheel the outwardly projecting iiaps 8| of the wrapper are first folded down against the outer surface of the article by an arcuate folding plate 85 carried by an arm 86 rotatably mounted on a shaft 88. The arm 86 has secured thereto a sleeve 89 which carries at its outer end an arm 98. 'Ihe arm 98 is pivoted at 9| to a, link 92 which is pivoted at its opposite end to an eccentric strap 93 surrounding an eccentric 94 carried by a shaft 95. As the eccentric rotates, the link 92 will be oscillated and the folding plate 85 moved alternately in opposite direction.

Ihe shaft 88 has secured to its outer end an arm |88 which is pivoted to link |8|, the other 20 mounted on idle'sprocket 'wheelsj|28.

35 Geneva gearing 19, the details ,of-

end of which is pivoted to an eccentricv strap |82 mounted on an' eccentric |83 carried by the shaft 9:5.` This eccentric is so designed that the `plate 98 will be moved in a clockwise direction after the flap 6| has been folded down and the plate v 98 will engage and fold ap 62 'downwardly over Vthe flap 6|. Thus when the articles reach the horizontal position shown to the rightin Figure 1, the wrappers encircle them with the j portion of the wrappersextending outwardly Vfrom the ends of the articles. The means 'for folding these outwardly extending portions of the wrappers will` now be described.` Y v A gear 3 mounted on the shaft 18 meshes with a gear' rcarried by a shaft ||5 which is parallel to andv spaced from the shaft 55'. Sprocket wheels ||6 onshaft l| I5 drive `sprocket chains ||1 from which extend spaced feedingV members" or lugs |18. `The chains I |1 are also Outside of the turret wheel and at' the sidesY of the table I2 a pairk of disks |25, |26 are mounted on the shaft I5 to rotate with the sprocket wheels.,y l I6. Each disk has projecting from its periphery a plurality of angularly spaced blades |21 which have'ilat arcuate enfdswhich engage vparts of thev y wrapper which extend from the package beyondy j opposite sidesof ythe turret wheel and `vmakethe first end folds `-a'on the ends of 'the package,vone

runs of the chains are parallel with the table |2| and the lugs ||8 which are spaced-back'of `the arcuate ends' kof the blades` |21 asl the latter engage the wrapper, pass upwardly between the and engage the packages in the right hand pocket P and feed it out of the pocket and along the table |2| When the packages reach the position in which one of them is shoWnatf'A, in Fig. '4,

the rear ends of the packages are beyond the rotary path of the blades |21.

The other end folds are made in the usual manner. The second end fold b (Fig. 6) is formed by stationary tuckers |38 disposed at the sidesv of the table |2|. The tucker |38 which would appear in Fig. 4 has been omitted from this gure for the sake of clarity. The third end fold c (Fig. 7) is formed by passing the wrapper through a slot I 3| formed between stationary blocks and the fourth end fold d(Fig. 8) by passing the wrapper through a slot |32. These slots are formed in walls at the sides of the table.

After the articles are thus completely wrapped,

PATENT oF'FlcEf` spaced side members 55, 55 of the turret wheel' they are carried along the table tok a suitable point of delivery. l

Various modifications in construction, mode of operation, method and use of an invention may and do occur to others, especially after benefit-` ing from knowledge of such disclosure as that herein presented of the principles involved, but

the invention itself is not conned to the presenti having projecting parts arrangedto'engage parts of a wrapper extending from the ends of a pack-` age in the turret wheel beyond the sides of said,v

turret wheel.

2. A straight guide, ar rotatable turret wheel I v having a'radially disposed pocket adapted yto re ceive a package and `a wrapper and to move thel v package to position oneof its sides in ralinernent with the guide, a shaft parallel with and spaced from the axis of rotation of the turret wheel, and

angularly spaced'blades on the shaft on opposite -v Y sides of't'heguide arranged to engage parts of a wrapper extending from the ends of a package in the turret wheel beyond the sides of said turret wheel.

`SQA straight guide,-a rotatable turret wheel having` a radially disposed pocket adapted to re,l

ceive a package and a wrapper and to move the Y package to position one ofits sides inalinement withthe guide, a shaft parallel with anduspaced from the axis of rotation of the turret wheel, and Y v disks on the shaft on opposite sidesv of the guide',y

each of said disks having ya blade projecting from its periphery arranged to engage parts of .a

wrapper extendingV from the ends of a package in the turret wheelbeyond the sides of said turret;-

wheel.

4. A straight guide, a rotatable turret wheel havingva radially ydisposed pocket adapted .to 're-Q ceive `a package and a wrapper and to move the package to position onevof its 'sides in alinement,

with the guide, ashaft parallel with yand spaced from the axis of rotation of the turret wheel, and n disks on. thershaft on opposite sides ofthe guide,`

eachof said-disks havinga pluralityv of angularly spaced blades extending vfrom its periphery arranged to engage parts of a wrapper extending' from the ends of a package in the turret 4Wheel beyond lthe sides of said turret wheel. l 5. A straight guide, a rotatable turret wheel tending from the ends rof a package inthe turret from the axis of rotationr of the turret wheel, and disks on the shaft on opposite sides of the guides,v each of said disks havinga plurality of angularlyKY spaced blades extendingrfrom itsperiphery with a at arcuate portion at theouter end `of each.

blade arranged to engage parts of a wrapper exk tending from the ends of a package in the turret wheel beyond the sides of said turret wheel.Y

6. Astraight'guide, a lrotatable turret-wheel having a radially disposed pocket adapted' to receive a package and a wrapper and to move the package to position one of its sides in alinernent with .the guide, a shaft parallel with and spaced from the axis of rotation of the turretwheel, f

disks on rthe shaft on. opposite sides of theguide having projectinglparts arranged toengage parts of a wrapper extending from thefends of a pack# i. age in the turret wheel beyond the sides of said j wheel, a sprocket wheel on said shaft arranged to rotate with said disks, a sprocket chain having a run parallel with the guide,, and spaced lugs on the chain projecting `into a pocketj in the turretflf Wheeland through'the guide arranged to propel the packages. t

7. A straight guide, a( rotatable-turret wheeli having a radially disposed pocket adapted'tozr'e-j ceive a package anda Ywrapperand to move the package toposition one of its sides in alinerne'nt with the guide, a vshaft parallel with and spacedr fromthe axis of rotation of theturret wheel,1 Y

disks on the shaftl on opposite 'sides of the guide, each of said disks having'a, blade projecting from its periphery arrangedto engage parts of a Wrap# y per extendingfrom the ends lof a package in the turret wheel beyond the sides of the turret -Whe'el-l a sprocket chain having a run parallel with 'the i guide, and spaced lugs on the chain'projecting into a pocket .in the turret wheel and!-throu'glr` the guide arranged to propel the packages.` f*

`8. A vstraight guide, a rotatable turret wheel" having a radially disposed p'ocket adapted to rel ceive a package anda wrapper'and to movethe package to position one OfitS'sides in alinement,`

with the guide,- a shaft parallel with-and spaced' from the axis of rota/tionv of thet'urret wheel," disks on the shaft "on opposite sides ofthe guides,V each of said'disks having a' plurality kof langularly spaced blades extending from its periphery withf a flat arcuate portionof thevouter end'of each blade arranged to engage'partsV of Va wrapper ex`f wheel beyond the'sides of the turret wheel, a

having a radially disposed pocket adapted to re-l ceive apackagve and a wrapper and to move the package to position one of its sides in alinement with ,theguida a shaft parallel with and spaced Y sprocket rwheel on said shaft arrangedto rotate` y with said disks, a sprocket/chainl havingal runfg parallel with the guides, and spaced lugs' on the chain projecting into a pocket inthe turret wheel and through the guidearranged to'propel the packages, said lugs being spaced to engage the rear ends of the packages after the flat arcuate portions of the blades have engagedthe wrapper.V WILHELM BRO.NNDER;r 'y i'

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