US1121894A - Can-heading machine. - Google Patents

Description

J. BRENZINGER:

CAN HEADING MACHINE.

APPLICATION FILED FEB. 24 1910.

' 1,121,894, Patented D60. 22. 1914.

2 SHEETS SHEET 1.

J. BRENZINGER.

CAN HEADING MACHINE.

APPLICATION FILED FEB.24,1910 1 y 1 21 94, Patented Dec. 22, 1914.

2 z I lm entor: j

UNITED STATESirilPENT OFFICE.

.JULIUS BRI INZINGEB, MOUNTVERNON, NEW YORK, ASSIGNOB, TO MACHINE COMPANY, OF MOUNT VERNON, NEVJ YORK, A CORPORATION OF NEW YORK.

oan-niz-Annig MACHINE.

Sbecificatioin iietters Patent. Patented Dec. 22,1914 1 Application filed February 24, 1910. Serial m. 545,571

1 '0 all whom it may concern:

Be it known that I, JULIUS BRENZINGER, a citizen of the United. States,'residitigaat Mount Vernon, in the county of WVestehester and State of New York, have invented certain new and useful Improvements in Can-Heading Machines, of which-:the-fob lowing is a specification; I l i This invention relates to machines for securing the tops and bottoms to th ide or body portions of sheet metalcontainers, commonly known as tin cans,wbat is known as the double-seaming process.

The more connnon forms of doilble -seaming machines now in .use areieae-h. provided with a rotatable support diorsthe can-body, and with a rotating ehuclclwhich its in a de pression in thetopor. bottom and not only ser es to rotate the can body with said top or bottom held firmly in placeforrthe seam ing operation, but supports the edgeof the top laterally against the forces 10f the s'ea1n ing operation. This operation is most generally performed by two seaming rollers,

which are successively brought against the edge of the top' or bottom, the first roller serving to fold or curl the edge of the top or bottom around the flange which has been provided at the end edgeof the body portion, and the second roller serving to compress the interfolded layers-into a substantially solid bead.

it will be apparent that in adjusting a can body, with the top or bottom loosely placed thereon, in'the machine, the seaming rollers must be out of the way, and after the can parts hare been firmly engaged and are rotating, these rollers must be automatically brought successively into contact withthe edge of the can top or bottom.- This necessitates the employment of cams or other means for actuating and properly timing operations ofthe scanning rollers. Furthermore in addition to the time necessarily lost in bringing the seaming rollers alternately into positions to perform the seaming operation, and thus necessarily limiting the capacity ot the machine, the groove with these rollers provided is necessarily of uniform size and shape throughout its length the intercurling or interfohling of the hang-cs being effected by forcing the roller toward-the can, thusne' cessita'ting a high degree of accuracy of adjustment.

The principal objeets'of the present invention are, first, to 'provlde-a maehine which, having seamingmechanism of suchcharaoa h ugh the elimination of ca mls mi 6'0 other means for bringing the seaming mech anism into and out of. operating pos' io'n, may be operated at much greaterlspe c njd therefore have a much greater:- capacity; second, to provide seaming mechanism which is at all times positivelyheld iii position 'foif GifQClJlVG operation, whereby allpossible dan ger of the parts getting ou't'of adjustment is absent; third, for the aboye and 'o'therwrea sons to provide a machine' in which the seaming operation is substantially:continuous; and, fourth, to pros, do .a double seaming nachine which shall be compare tirely simple in construction and t oi the greatest possible extent iitom'atie, efiic iit, and dependable in operatiiinra 1 My inventionlwillbe more r d i y stood by reference to thehjaceoinp anymg draw ings,- forming a part ;.of;this speeifiea' tion, in which- I Figure l is a side elevationgf ,a d quble' with )arts broken away; Fig. 2 i's an jerilarge detail elevation ofthe seaming iiiclianism; Fig. 3 is'a central vertical section" of the seaming roller and its support, and.

I y 8.0 seaming machine embodyingmy invention Figs. 4 and 5 are: detail rie'ws showing the" successive steps of the seaming "operation, with two different forms of seaming rollers.

Referring now to the drawings in detail, numeral 11 refers to a heavy supporting frame having a. base 12 which carries the standard l3 in which and said frame'lI'the shaft lat is journaled. 'Atthe'end of the shaft let. are mounted the usual fast and At the lower end ofthe shaft 18 is mounted the head 33 which carries a. chuck 2i adapted to fit into a corresponding depressioninthe topor bottom whiehis intended to be double-seamed to body portion 25 of the can."

Journaled in the arm 17, just baclrof the v throughout the remainder thereof. In this mesh with the shaft 18,- andin the bracket 26 projecting forwardly from the frame 11, is the vertical shaft'27, upon which is fixed the gear 28 in gear 29 on the shaft 18, whereby the two shafts Band 27 "rotate in unison, Upon this shaft 27 is fixed the inverted, pup shapedf- 'member 30, which is adapted to snugly contain the single seaming-roller 31. This seaming roller is preferably' gloose:upon the shaft 27, being supportedhy-Z thecollar 42 fixed upon said shaft, and'iziseadapted-to slide} thereon freely, in

and of thie containing vmember -30. This seannn roller r31vv i jrlprovided. with a contin- 32:1i .Whenfthis 1roller is 2 ."designed to 'dotihle sea m 'the top j'or. bottom tdthfe. body'por-tion of the can inthe manner heretofore 'performe d by; two f successively operating seaming rollers, this groove 32, while gdeepest atfthe 'beginning thereof, at

the' -lo wer-od'ge of therollenfil, and gradually becoming" shallower as it. approaches the ..formwidth throughout approximately one half, of its length, and uniformly wider manner,;, .-this single roller 31 is provided portion merging into another portion which corresponds in width to that oflthe groove .Aferred to.

with a groove .which first. corresponds in width to the groove in the first ofthe two seaming rollers heretofore employed,' this in the second of the two seaming rollers rehave shoivn diagrammatically the operation and effect of a spirally 'g'ro'oved seaming roller designed to perform the-same character of seaming operation as that-heretofore performed bytwo seaming rollers- In Fig.7 5 I have shown the seaming roller, 31" provided With'a groove the configuration of which varies to 'meet the requirements for which heretofore three seaming-rollers have been successively employed.

' In this case, it will be noted that the groove,

through approximately one-third of its length, has the efi'ect of bending the end of the upper flange around the lower flange,

this portion of the groove merging into an intermediate portion where the interfolded flanges are bent toward the body of the can, and this intermediate portion merging into the upper and final portion of the groove which serves to compress the interfoldedilanges into a substantially solid bead.

The platform 35, upon which the can body 25 is placed for the seeming operation, 13 mounted-at the upper end of the shaft 36, which'is :rotatable and slidable longitudinally in hearings in the bracket 37, projecting forwardly from. the frame 11..

This shaft 36 is vertically reciprocated by means of the hand lever 38 operat ng through the connecting link 39 to raiseland.-. lower the collar 40 sosecured to the gether.

as to permit rotation thereof. It will therefore be seen that the platform 35 is normally stationary, so that the can body does not begin to rotate until the chuck enters the correspondingdepression in the can top and firmly seats said top on the can body. .7 This is importantwhen sealing cans filled with hot liquid or semi-liquid material, portions of which are thrown off by centrifugal force if the can-body is rotated before the top is firmly seated thereon. "When-the platform 35 is raised, the can-body audits seated top willbe rotated with the shaft 18. -It will be apparent thatwhen the can body "with its superposed I top is raised through depression of'the' lever'38, the rela; tion between the container '30 and the seamingroller 31 being normally as indicated in Eigh3, the first effect produced will be that of-engagementbetween the upper flange 33 of the can top and the bottom of the seam-. ing roller 31, the latter being thereby carried up into the container 30 while the can is raised to that point where; the chuck 24 I enters the depression in the can top and firmly grips the two parts of" the can to- The can body with its top firmly seated thereon is caused to.' rotate with the chuck 24, and through the medium-of the can parts the supporting platform 35 is also .caused to rotate at the same speed as the chuckf It will be noted that si'nce'the seaming roller 31 is loose on shaft 2-7, positive rotation will not be imparted to said roller by the rotation of said shaft, although the roller will have a tendency to rotate due to frictional contact with shaft 27 and the cone tainer 30. When, however, the canparts have been firmly gripped by the chuck and are caused to rotate therewith, the flanges 33 and 3 1- will enter and advance in: the

groove 32, and due to their frictional con tact with said groove the roller 31 will be; caused to rotate. As has been explained, this posed layers are folded down against the can-body, as indicated by the dotted lines, o

the shallowest portion of the groove finally having the effect of compressing the inter folded layers into a substantially solid bead.

It will be apparent with respect. to this,

seaming roller and its, operation, that the roller rotates upon a fixed axis and is alwaysin position foroperatiorr. From the instant thg s'uperposed'fiangcs enter 'the lower end of the groove and the can parts are gripped bytheochuclr, the seaming operation is conseaming operation, said member being 7 mounted for bodily movement vertically and being provided with a spiral groove of varying cross-sectional configuration, of means for advancing the assembled can parts to and pressing the same against said supporting means and thereby raising said member and directing the flanges into said oove, and said member being lowered uner action of gravity to retain said flanges in said groove throughout the entire seam ing operation.

In testimonyv of the foregoing I have hereunto set my hand in the presence of two Witnesses: I 1

P. FRANK SONNEK, AARON GfNSBURG.

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