US1384198A - Feeding and forming mechanism for wrapping-machines - Google Patents

Description

C. J. LIETZ.

FEEDING AND FORMING MECHANISM FOR WRAPPING MACHINES.

APPLICATION FILED FEB-13,1920.

Patented July 12, 1.9211,

3 SHEETS-SHEET l- C. J. LIETZ.

FEEDING AND FORMING MECHANISM FOR WRAPPING MACHINES.

APPLICATION FILED FEB.13. I920.

4, Patented July 12,1921,

3 SHEETS-SHEET 2- wi 1 YEP? 6447 05 (IL a 65% a a C. I. LIETZ.

FEEDING AND FORMING MECHANISM FOR WRAPPING MACHINES.

APPLICATION FILED FEB-13, I920.

1,384, 1 98, Patented July 12, 1921,

3 SHEETS-SHEET 3- 0% 1 565 JL eZz entree rare FFHC CHARLES E. LIETZ, OF NEWARK, NEVT JERSEY, ASSIGNOR TO IDEAL WRAPPING MACHENE COMPANY, A CORPORATION OF NEW YORK.

FEEDING AND FORMING- MECI-IANISMI FOR WRAPPING-MACHINES.

Original application filed March 17, 1917, Serial No. 155,420. Divided and. this application filed February Specification of Letters Patent.

Patented July 12, 1921.

13, 1920. Serial No. 358,479.

form a part of this specification.

This application constitutes a division of my co-pending application for patent for Wrapping machine, filed March 17, 1917, Serial No. 155,420.

This invention relates particularly to the mechanism which operates to eject or feed articles from a transfer or feed belt through a forming box which acts to truethe article to shape before passage thereof into a carrier wheel of the wrapping machine, which during the travel of the article causes a wrapper to be folded thereon.

It is an object, therefore, of this invention to provide a mechanism having timed operation with the other mechanisms of a wrapping machine operating to transfer an article from a feeding belt by sudden impulse to and through a forming box and, together with a sheet of wrapping material, place the article into a carrier wheel of the wrapping machine for. application of the wrapper thereon.

Other and further important objects of this invention will be apparent from the disclosures in the drawings and specification.

The invention (in a preferred form) is illustrated in the drawings and hereinafter w more fully described.

Drawings.

'through with parts in elevation.

Fig. 3 is an enlarged View from the opposite side of certain of the mechan sm shown in Fig. 1.

Fig. 4 is a sectional detailv with parts in elevation on line'-t of Fig. 2.

Fig. 5'is a sectional detail on line 5-5 of Fig. 1.

Fig. 6 is a top plan View of the mechanism shown in Fig. 2.

Fig. 7 is a sectional detail on line 7-7 of Fig. 2.

Fig. 8 is a sectional detail on line 8-8 of Fig. 1.

Description.

The frame extension of the wrapping machine to which the mechanism comprising the present invention is attached is denoted as a whole by the reference numeral 1 and secured thereto is a hollow casting 2 with a shelf extension 3 at the forward end there. of. Mounted upon sald shelf extension is :wardly, and said plate at its rear end is provided with downwardly extending arms 7 which, as clearly shown in Figs. 1 and 5 form a fork for a pivotal connection of said plate by means of pintle 8 extending through the forward end of a rectangular frame or casting 9 secured upon the upper surface of said hollow casting 2. I

Mounted in a beveled slot in said plate 6 is a roller 10 of a diameter greater than the width of the slot so as to rest therein, and a resilient hearing or spring member 11 is secured upon the upper surface of the plate 6 and bears upon the said roller to confine the roller in said slot. Pivotally connected at the rear end of the plate 6 is a threaded I rod 12 which extends through a notched lug 13 formed or secured upon the top plate surface of the side walls of the forming box a.

This yieldable plate 6 allows for any variation in size of the cube of candy. If the piece is too large the plate will be pressed upwardly to form a larger mold, thus preventing any jamming of the candy that would render the device objectionable and allow the sticky candy to adhere to the operating parts. ,Attached against the forward end of the plate 6 is a bar 18 affording a breaker strip and guide for the wrapping material introduced in front of the forming box. A similar bar 19 is attached against the front edge of the forming box 4: to receive the paper wrapper introduced therebetween. The article feed belt denoted by the reference numeral 20 travels beneath the plate 6 and in front of the entrance to the forming box 4, as shown in Fig. 1. A plunger 21 is slidable through the frame 9 and is provided with a striking head 22 at its forward end. Formed on the under side of said plunger 2 is a rack 23 and meshing therewith is a sector gear 24 secured upon a shaft 25 which is journaled transversely through the lower portion of the casting 2. Also secured upon said shaft 25, as shown in Fig. 7, is a crank 26 to which a link 27 is connected and said link 27 is also connected to a block 28 formed on or secured upon a slide bar 29 which is slidable longitudinally through the lowerportion of the casting 2. A link or lever 13 is connected to the forward end of the slide bar 29 and leads forwardly and is connected to suitable reciprocating mechanism forming a part of the wrapping machine. A bell crank having one arm 31 provided with a roller 32 is journaled in the casting 2 and said roller 32 engages in cam groove 33 of the block 28 and the other arm 34 of said bell crank extends downwardly below the frame casting 2 and is adapted to be utilized for the operation of other mechanisms. Said slide bar 29 is supported upon plates 35 attached on the under side of the casting 2 at each end thereof. The operation of said slide bar forward and back serves to trans mit an oscillatory or reciprocating movement to the gear sector 24 through the block 28, link 27 and lever 26 connected on the shaft 25.

Operation.

' rence to take place is operation of the slide bar 29 forwardly, which by means of the block 28, link 27, crank 26, and shaft 25, operates the gear sector 24: forwardly, which meshing with the rack 23 of the plunger bar 21 causes a sudden forward movement of the plunger. The plunger head 22 strikes the caramel from the carrier belt 20 forcing it quickly through the forming box 4 between the convergent walls thereof and being box 4 and at this instant it strikes the.

sheet of wrapping material 36 which at this instant is severed from its continuous strip portion by a cutting mechanism 37 properly operated at this instant by the mechanisms which formnopart of the present invention. The bars 18 and 19 between i which the wrapper is trained serve to break the same over and beneath the caramel as it is thrust outward therepast by its plungerand against the slidable plunger 38 of the carrier pocket 39 in the wrapping wheel 40 of the wrappingmachine. The plunger 38 is thrust inwardly in the pocket 39 and the caramel with its wrapper is seated thereagainst 'and immediately afterward the plunger 2121 is retracted and movement-of the carrier wheel 40 takes place to cause application and folding of the wrapper; 36 around the object.

The roller 10 of the .forming mechanism I through which the caramel is passed exerts a resilient rolling effect on the top surface of the caramel to give it proper shape, if not already in proper'form, and further'the top plate 6 by which said roller is carried and beneath the forward end of which the caramel subsequently passes is also held yieldably down by its spring 17, the compression effect of which is adjustableto suit.

requirements by the knurled head 16.: The top plate 6 may be swung upwardly, to give access to the parts for cleaning or repairing, by relieving the stress on the spring 17 and raising the rod 12 upwardly out of. the notched lug 13, thus permitting the plate 6 to swing freely upwardly on its pivoted forked arms 7.

I am aware that numerous details ofconstruction may be varied through a vwide.

range without departing from the principles of this invention, and I therefore do not purpose limitlng the patent granted otherwise than necessitated by the prior art.

Claims.

1. The combination with a wrapping machine, of a forming box for articles passed therethrough and resilient mechanism forming a part of said forming .box to bear yieldably upon the article. 3

2. The combination with a wrapping ma chine, of a forming mechanismto give shape to articles passed therethrough, said mechanism comprising yieldable rolling means to shape the articles.

3. In a candy wrapping machine, a forming box having a yieldable side, and a yielding rolling member projecting through said side.

4. In a candy wrapping machine, the combination with the mechanism for wrapping pieces of candy, and the feed mechanism thereof, of a yieldable forming mold through which the pieces of candy are adapted to be passed.

5. In a candy wrapping machine, in combination with the mechanism for wrapping pieces of candy, a forming box for said pieces of candy having a yieldable side, and yieldable means for tilting the said side.

6. In a candy wrapping machine, in combination with the mechanism for wrapping pieces of candy, and the feed mechanism thereof, of a stationary forming box having a yieldable side for forming cubes of candy having variable dimensions.

7 In a candy wrapping machine, in combination with the mechanism for wrapping pieces of candy, a stationary forming box, a conveyer passing through a portion of said box, and a plunger adapted to pass longitudinally into said forming box.

8. In a candy wrapping machine, the com bination with the feeding mechanism, of a yieldable forming mold, and a rolling element projecting through said mold.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

CHAS. J. LIETZ.

Witnesses:

O. B. FELLOWS, CHARLES W. MOORE.

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