US1626543A - Wrapping device for irregularly-shaped delicate objects - Google Patents

Description

O. LAUENSTEIN 'April 26, 192?.

WRAPPING DEvIE Fon muzsunmamfv SHAPED 'DELICATE oJEcTs 4 sheets-'sheet 2 Filed Aug. 25, 1925 O. LAUENSTEIN WRAPPING DEVICE FROR IRREGLARLY SHAPED DELITE OBJECTS Filed Aug. 25,A 1925 4 sheets-sheet 5 Aprin 26, 1927.,

o. LAUENSTEIN WRAPPING DEVICE Fon IRREGULARLY SHAPED DEM-GATE OBJECTS Filed Aug. 25, 192,5 l 4 sneek-'sheet 4 m @l1 H mg a, :W: I in a 'Patented Apr. 26., 1927.

WRAPPING DEVICE vFOR IRREGULRLY-SAPED DELIATE OBJECTS.

Application led August 25, 1925, Serial No. 52,411, and in Germany vAugust 29, 1924. i

This invention has reference to means for the wrapping up of material with a flexible wrapper, die, envelope or the like, and it refers in particular to` means of the kind referred to adapted for the covering. of sen sitive, or soft and irregularly sha ed material, such as different kinds of)` candies, sweets, fudge, so-called pralines, and equivalent articles, and it is lintended to gen-` 1'0 erally improve devices ofthe kind referred` to, to facilitate and accelerate the wrapping process, and to insure the turning out of a.

high-.Grade product of neat appearance.v In accordance with this invention the article to be wrapped is treated with a yieldable die or wrappmg means, comprising in the i referred embodiment of the invention ro lers or the like which are provided with a soft oryieldable coating, such `as for instance;

2o a coating ofl bristles, soft felt, sponue rubber, a plurality of soft yieldable rubber fin.

gers or the like. These rollersv are preferably rotated in a direction opposite-to the feeding or ropelling of the articles to be wrapped.

vention these rollers or the like may be spring journaled, so as to prevent the injuring of articles of particularly j irregular shape.. In one of the most preferred constructions of this invention two pairs 'of rollers with intersecting axes in two different planes are employed.l The longitudinal sec- 're tionsof the rollers may adapt itself as much as ossible to the cross, sectional shape of the asv artlcles to -be wrapped up. Particularly in the case of pairs of rollers disposed in 'dierent planes such rollers may be adjustable, so as to .adapt them to dierentsizes of articles and to admit of a change of distance of the w axes of the rollers from each other.

The invention will be more fully described withreference to the accompanying drawing which show several embodiments. thereof, without, however, limiting the invention 45 thereto.

In the drawings :--Figure 1 is a vertical j cross section throu h a' device according to this invention .on tg Figure 2 is a front view of the device. Figae ure 3 is a lan viewof this form'of constructiono the device; the lupper portion particular embodiment or combination of n further pursuance of this in-"` shafts 5 and 12 respectively of the rollers.

e line I--I of Figure .2..

vone and the same device, merely by way of 6 5 simplifying the illustratiom'but it is obvious that as a rule only-one kind of rollers will generally be employed with the device, but without restricting the invention to any embodiments. In the form of construction according to Figures 1 to 3 two, pairs of lrollers 1 and 2 are mounted respectively on shafts, 5 and 12 and below each other'and in such a manner that the directions of the shafts 5 and 12 will intersect. Said shafts 5 and 12 are mounted. in rockable arms 8 and 9. The arms 8 carrying the upper roll-V ers 1 are rockably mounted on the studs or bolts 3, and the arms 9 carrying the .lowerso rollers 2 are rockably secured on the studs or bolts 4. The arms 8 and 9 are adjustable' Y latively to each other'and vare acted upon by springs 10 adapted to forcel the rollers in t e inoperative 4position against the adjustable stops 11. lUpon adjustment ofthe said stops 11l and owing tothe rockable mounting of thev arms 8 and 9 and the tension of the springs 10 thereon the said arms may be moved toward or.v away from each other, as apparent. The driving` of the rollers is effected by airs of gear wheels 7, 7, and the gear whee s 7 are rigidly connected to the;

The gear wheels 7, however are. rotatably mounted upon the rocking shafts 3 andai respectively of the levers' 8 and 9, and4 are operated by sprocket wheels 13.

The rollers 1 and 2, as above mentioned,

are provided with a `soft coating, thus for i instance, with sponge rubber, bristles OlatheY like. Ihe` direction of movement of the rollteY Y ers'is indicated by the arrows A in Figure 1.

" any' suitable Vcutting device.

lower pair of rollers,

, of the rotating rollers The mode of operationl of the device is 'substantially `as follows The article .15, a piece of candy or the like, is mounted 1n the well known manner upon the stem 14. Between the ide plates 16 the wrapper 17, consisting or instance of tin foil, .1s introduced`which is cut to the desired lengths by The stem 14 which is upwardly projected bythe driving means forces the article 15 through the recesses 18 of the guide plates 16, and in this' movement the tin foil is-carried along and is gently placed` around the article The. stem then pushes the article first through the and then through the upper pair of rollers,

during this movement gently andy snugly forces the wrapper in contact with the article. Above the pair of rollers 1 a receiver of well known construction is arranged which is adapted to'fold down the marginal parts of ,the wrapper which project from the main surface of the article.'V The rotation of the wrapping rollers or dies produces a particularly close and vsnug contact and high gloss of the wrapping sheet.

In the modified form of construction accordin to Figures 4 to 6 the rollers possess a longitudinal sectional shape particularly adapted to correspond to the cross sectional shape of the object to be wrapped. In this modiication be less resilient. In order to facilitate the manufacture of these rollers, they may be composed of a `plurality of .discs 20 secured upon the hub portions 21, as appears from the representation at 19 dividual parts may be formed of soft rubber or of any other yielding material. In this modified construction there may likewise-be provided a yielding manner of journaling the shafts of the rollers combined with the yielding or resilient construction of the rollers themselves. Y

The invention has been shown and described in its broad principal aspects only, and it should be understood that it is not limited to the-` particular embodiments shown by way of exemplification only,y but it is susceptible of other modifications 'and changes, as-will suggest themselves to the expert, except as defined in the claims here-v unto appended. I claimz v l 1. In awrapping device for irregularly shaped delicate objects, means for placing a wrapper on said objects, andfsmoothing means mounted to move in a direction towards the margin of the wrapper while on the object. an a Ycontact with the object.

means for placlng a liexible wrapper' upon wrapped, means and the soft c'oatingv the coating of the rollers may andl 22. These in-` dapted to gently press an object, sume substantially the outer shape of said object and in moving contact .with said wrapper in a direction towards the marginal edge of the wrapper gior partly forcing an object. y

'3. In a wrapping device in combination, movable guiding means for the object to be for placing a iexible wrapect, while on the `guiding per on the ob] means pairs of movable in opposition to said guiding means and said object and on op osite sides thereof, and ada ted to gently orce the wrapper in close an snug contact therewith.

4. In a wrapping axially movable guiding means for the object to be wrapped, means for placing a lexible wrapper upon the object, while on the guiding means, superimposed and axially smoothing means adapted to asd d smoothing the wrapper in contact `with the,

rockably mounted rollers device in combination,

intersecting pairs of rockably and yieldably v mounted rollers movable in opposition to said guiding means opposite sides thereof, and adapted to gently force the wrapper in close and snug contact therewith.

5. -In a wrapping device in combination, movable. guiding means for the object to be lwrapped, means for vplacing' a Hexible wrapper on the object, while on the guiding means, pairs of rockably mounted rollers rotating in opposition to the guiding means and having a coating of bristles thereon adapted to gently force an smooth the wrapper into close contact with the object.

' 6. In awrapping device in combination, axially movable guiding means, for the object to be wrapped, means to place a flexible wrapper on said object, while on the guiding means, pairs of rockably mountedI spring -actuated rollers movable in opposition to said guiding means and said objectf and in opposition thereof. and adapted to gently fgrce the wrapper intoA engagement with the o ject.

7. In a wrapping device i'n combination,l

axially movable guiding means for the object'. means to place a Hexible wrapper on said object while on the guiding means,

withthe wrapper on the object.

8. In a wrapping device forshaped objects, means for the objects, laterally yielding rollers on both .sides ofthe supporting means, means to adjust the distance of the rollers from each other'I and the supporting'means, and means to `place a flexible wrapper on the object, while on the supporting means.

Y' 9. In a .wrapping device for irregularly and said object and on and yieldably irregularly axially movable supporting thereon adapted to become snugly engaged 120 1,626,543 i i a shaped objects end. the like an apeitured of smootbening rollers engageable on both guide for the wrapper, sup orting` means, sides of the axially movable sup orting adapted for the mounting o the object to means, and driving` means-for said ro ers. 10 u 'be' wrapped and vaxially movable through In 'testlmony whereof, 1 ax my signa- 5 said apertured guide, nd adapted to cause 4ture.

the seating of the wrapper on the object,

yieldinglydsposed, adjustably spaced pairs OTTO LAUEN STEIN.

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