US1539400A - Wrapping and sealing machine - Google Patents

Description

May 26, 1925.

1539,400 C. W. NEUSBAUM WRAPPI NG AND SEALING MACHINE 2 Sheets-Sheet '1 v Filed March 27. 1922 v INVENTOR.

2. Q F L P x &

May 26, 1925. 1,539,400

C. W. NEUSBAUM WRAPPING AND SEALING MACHINE FiledMarch 27. 1922 2 Sheets-Sheet 2- INVENTOR.

a/IIS BY ATTORNEY- Patented May 26, 1925.

UNI ED STATES 1,539,400. PATENT 0FFICE.

CHARLES W. NEUSBAUM, OF ROCIFIES'IER, NEW. YORK, ASSIGNOR T0 BEEOHNUT PACK- ING COMPANY, OF CANAJ'QHAR-IE, NEW YORK, A CORPORATION OF NEW YORK.

wmrrme AND snamne MAcmnE.

Application flle d March 27 1922. Serial No. 547,157.

To all whom it may concern:

Be it known that I, CHARLES W.. Nuns- BAUM, of Rochester, in thecounty of Monroe and State of New York, have invented" certain new and useful Im rovements in Wrapping and Sealing Machines; and I do, hereby declare the following tobe a full,

clear, and, exact description of the same,

reference being had to the accompanying drawings, forming a part of this specifica-,

for wrapping and sealing packages. These are often covered with a wrapping of paper or foil or botli coated or impregnated with paraifin and to complete the wrapping and -sealing the flaps of the wrapper must be folded down and heated to fuse the paraflin.

My invention has for its object the provi sion of a very simple, but effective machine that will rapidly perform these operations.

and deliver the package tightly sealed. The improvements are directed in part towaro the provision of means that will insure the adherence of the under flap at an. end of the package to the body of the latter and the adherence of. the outer flap to the inner flap. To these and other ends the invention consists in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings 2 Figure 1 isa top plan view of a wrapping and sealing machine constructed in accordance. with and illustrating one embodiment of my invention; 7

Figure 2 is a side view thereof;

Figure 3 is an enlarged fragmentary side view of the front end of the table;

Figure 4 is a vertical central section through the same portion of the table;

Figure 5 is a detail section on the line 55 of Figure 3;

Figure 6 is a detail section on the line 66 of Fi re 4;

Figure is a 7-7 of Figure 3;

Figure 8 is a 8-8 of Figure 3; Figure 9 is a perspective view of the package as it is presented to the machine;

detail section on the line detail section on the line Figure 10 is a similar view of the ackage after the; under flap has been fol ed;

I Flgure 1 1 is a perspective view of the package completely folded and sealed, and

F1g'ure'12 is a collective enlarged detail perspective view of the sealing plate supp'ortmg bracket.

slmllar reference numerals throughout the several views indicate the same parts.

The present invention contemplates the provislon of a machine for only partially wrapping but completely sealing a package to WhlOh the wrapper has been preliminarily applied by hand in the manner shown in Figure 9 where A represents the body of the package with four sides completely covered and the ends only partially covered by the folding in of the two short flaps B leaving the longer upper and lower flaps O and D still extended in which shape an operator can conveniently and quickly prepare the package which is then placed on the machine and completed. In the present embodiment of the invention I provide a table top 1 constituting a bed preferably surfaced with metal at 2 and of the form shown in the cross sectional view with a channel 3 down the center thereof. At the ends of the tableare brackets 4 providing bearings for sprockets 5 which support an endless chain 6 having conveyor fingers 7 thereori at suitably spaced intervals. chain travels in the direction of the arrow and the upper reach thereof occupies/the channel 3 in the bed.

At the front end 'of the machine (which is at the right in the figures) is a rectangular package receiving pocket 8 through which the conveyor travels, which pocket is open on its rear side toallow the package to slide out on the conveyor while a low wall or bead 9 defines the other sides. The pocket is preferably formed in two parts consisting of plates 10 adjustably mounted by. screws 11 on the bed to accommodate packages of different length, and it is rectangular in form,th e present machine being ada ted for sealmg a rectangular package.

ext beyond the pocket are a plurality of vertically disposed plates successively arranged in lines on'each side of the conveyor and constituting a runway which the latter traverses. .These plates have rigidly attached to them brackets 12 that have a slidin: bearing on the top of the table or bed The " to the bed by screws 17, the springs'14 acting between the bracket to urge the bracket 12 and its plate inwardly in each instance. The uide pins are capped by thin screws I the top nuts 36,'the bridge pieces being of the form or win nuts 18 hearing. against the outer sides 0 the brackets 16 to limit this inward movement adjustably and define the width of the runway through which the package is to pass. Preferably the brackets 16 are undercut as shown at 19 in Figure 12 and the brackets 12 are 'forked in a complementary manner as shown at 20 to cooperate therewith and be further guided and steadied. The first two sets of brackets at the front or right end of the machine are not so formed in the present instance inasmuch as their guide pins must be offset and are carried byv upstanding outer extensions or flanges 12.

Assuming the progression to be'from the pocket 8 down the runway along the, course of the conveyor chain 6, the first plate is a heated folding and sealing plate 21 having an upwardly inclined and laterally turned advance lip 22, it being understood that in the following. description the elements referred to are duplicated on the two sides of the runway. This plate 21 isheated by a suitable electrical hot point 23, thelterminals of which are indicated at 24 and the lead wires at 25. The next plate 26 is also a heated plate presenting a plane vcrticalsurface on the interior of the run-,

way. It too is provided with a hotpoint 23 and with terminals 24 havinv' lead wires 25. An otherwise unsupported and lateral- 1y yielding extension of this plate 26 extends forwardly at 27 above the plate 23 and is provided with a downwardly inclined and laterally flared lip 28 at the rear extremity of which is a' small flared lip 29 that is very steeply inclined rearwardly and best shown in Figure 3. Beyond the plate 26 and constituting the far end of the runway is a similar vertical plate-3O which is however unheated.

To hold the moving packagesdown against the bottom of the runway I provide therein a air of long overhanging land longitudina ly extending shoe 31 in the present form of rods having upturned forward ends 32. These are resiliently supported to yield upwardly but press sufiicienty upon the packages to which end they are provided with fixed vertical posts 33 surrounded by coil springs 34-and extending through and guided by bridge pieces 35 on side of which they are capped by shown in Figure 6 and secured to the table as indicated at 37 in Figure 1.

The machine operates as follows:

. Packages A in the condition illustratedin I Figure 9 are successively laced bythe operator' in the pocket- 8 which they ,fit rather closely. The rounded head 9 of the pocket as a result of this causes the lower flap D- to fold upwardly as shown in Figure 3.

; plates 21, the inclined lips 22 of whichcomplete. the folding of the flap D if this has not already been done. The flat heated surface of these plates then press the flap D flat against the end face of the package.

and seal it there by fusing or melting the wax with which the parts are impregnated or coated as shown in Fi re 10. In the meantime the upper flap has in each instance. been guided up the incline 22 and. entered between the plates 21 and 27. The lip 28 on the latter as the package progresses folds the upper flap (l downwardly upon the lower flap which movement is completed by the lip 29 and the two superposed flaps then pass on to the hot plate 26 .in the condition shown in Figure .11, and this hot plate which is high enough to engage both flaps and cover the entire end of the package completes the melting of the parafiin and seals which cool and set the parafiin and complete the treatment, it being understood that all of these yielding plates contribute the function of flattening and ironing out the end of the'package so that it is square and smooth. The conveyor finally carries the ackage .from between the cold plates 30 into a suitable chute 38 from which it is delivered as. desired.

Itiis obviousfrom the construction shown thatithe machine can be adjusted and fitted to packages of different sizes within a certain range.

The function of myimproved machine wherein it flattens, heats and seals the lower flap andfthen flattens, beats and seals the 'upper'fi'ap and both flaps together. is imway at a uniform rate, of a fixe package receiving pocket at one end of the runway adapted to fold upwardly the lower end flap of a partially wrap ed package when placed therein, means at t e side of the runway forfolding down the other flap as the thereon and a conveyor traversing the runway at a uniform rate, of a fixed package for heating the folded flaps to seal them' upon the package.

2. In a wrapping and sealing machine, the combination with a table, a runway receiving pocket at one end of the runway adapted to fold upwardly the lower end flap of a partially wrapped package when placed therein, means at the side of the runway for pressing said flap inwardly relatively 'elevated means for subsequently folding the upper flap down upon the lower flap and means for successively heating the folded flaps.

3. In a wra ping machine, the combination with a ta 1e, a runway thereon and a conveyortraversing the runway at a uniform rate, of heated means at the side of the runway for engaging the outer faceof the lower flap of a partially wrapped package to simultaneously heat and pressthe ackage, and;

flap againstthe body of the relatively elevated and overlying meansat the side of the runway for later heatin and folding the upper flap down upon the ower flap.

4. ,In a wrapping machine, the combination with a table, a runway thereon, and a fi conveyor traversing the runway at a uni form rate, of heated means at the side of the runway for engaging the outer face of the lower flap of a partially wrapped package,--

to heat and press said flap against the body of the package, similarly arranged heated means for later folding the upper flap down upon the lower flap and heated means further down the runway for pressing and sealing both flaps.

5. In a wra ping machine, the combination with a table, a runway thereon, and a conveyor traversing the runway, of a laterally flared and upwardly inclined heated plate at the side of the runway for engaging the outer face of the lower flap of a partially wrapped package to heat and press said flap against the packa e, and a laterally flared and downwardly inc ined heated plate for later folding the upper flap thereofdown upon the lower fla to heat and seal it thereon.

6. In a wra ping machine, the combination with a ta 1e, a runway thereon, and a conveyor traversing the runway, of a laterally flared and upwardly inclined heated plate at the side of the runway for engaging the outer face of thelower flap of a partially wrapped package to heat and press said flap against the package, a laterally flared and downwardly inclined heated plate for subsequently folding the upper flap thereof down upon the lower flap, and heated means further-"down the runway for thereafter sealing both flaps.

7 In a wrap ing and sealing machine, the combination with a table, a runway and a conveyor traversing the latter, of a plate adapted to cooperate with a package on the conveyor and having a laterally extending guide pin thereon, a bracket on the table through which the guide pin extends, a spring acting between the said bracket and plate and a bracket on the plate slidable on the table and guided on said firstmentioned bracket.

8. In a wrapping and sealing machine, I

the combination with a table having a runway and a continuous conveyor'traversing the runway, of heated means at the side of the runway for pressing and heating the ap of a partially wrapped packa e carried by the conveyor against the ho y of the package and additional means .upon the table for subsequently engaging the outer face of another flap to fold, heat and press it .upon the first mentioned flap.

. 9. In a wrapping and sealing machine, the, combination with a'table having a runway and a continuous conveyor ,traversing the runway and having upstanding members for advancing a partially wrapped package thereon, folding and heating means adjacent the conveyor for heatin set of flaps on the pac ages vagainst the bodies thereof, and additional heating and folding means adapted to subsequently heat and fold opposite sets of flaps upon the packages against the bodies thereof, each of said folding and'heating operations being and folding one.

performed during the continuous advancement of the packages.

CHARLES W. NEUSBAUM.

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