US949682A - Can-heading machine. - Google Patents

Description

E. J. MORRIS.

CAN HEADING MACHINE.

APPLIUATIUN FILED MAY 15, 1909.

Patented Feb. 15, 1910.

2 SHEETS-SHEET 1.

E. 1. MORRIS.

CAN HEADING MACHINE.

APPLIGATION NLED MAY 15, 1909.

949,682. Patented Feb. 15, 1910.

2 SHEETS-SHEET 2 Mwsses.

UNTTED STATES PATENT oinucr.

EDWARD J. MORRIS, OF SYRACUSE, NEW YORK, ASSIGNOR. OF ONE-HALF TO ANDREW J. L. PENDERGAST, OF SYRACUSE, NEW YORK.

CAN-HEADIN G MACHINE.

T o all whom it may concern:

le it known that. I, EDWARD J. Mouais. of Syracuseyin the county of Onondaga, in the State of New York, have invented new and useful improvements in Can-Heading Machines, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact/description.

This invention relates to certain improvements in can heading machines for crimping the marginal edges of the heads upon the ends of tin cans in such manner as to form an air tight joint and hermetically seal the cans without the use of solder at such joints. l

The mai-n body of the can is first made up in cylindrical form and its ends provided with outwardly projecting annular flanges, while the heads are of somewhat greater diameter than that of the end ianges on the cans, the central portions being slightly cupshape to fit into the end of the can, and the marginal ed e is turned inwardly to form an annular ange surrounding that of the end of the can when the head is placed in position for crimping.

One of the oluects of my invention is to I)rovide a simple and more effective means or gradually but expeditiously crimping the marginal flange of the head over and upon that of the end of the can in such manner as to form a double fold or lap and at the same time to firmly press all parts of the flanges into close interlocking engagement with each other to make an absolutely air tight joint and thereby hermetically seal the can. This is accomp ished through the medium of a non-rotatable axially movable presser head for engaging and holding the head of thecan against turning, and ,a `coaxial rotary axially movable head carrying suitable crimping rollers which are brought into `engagement with the flangegof the can head and then drawn inwardly toward each other under a rolling motion to overturn the marginal edge of the can head u on the end flange of the can; and another' o ject of my invention is to provide means controlled by the operator whereby the rotary head ay be .rotated independently of the presrslre head and also independently of the mechanism by which it is moved axially.

One of the specifieobjects is to mount the crimping rollers in pairs upon separate rock Specification of Letters Patent.

Application led Mag,- 15.

arms and to draw the rollers of one pair inwardly by the axial movement4 of the rotary head upon wh ich said rock arms are mounted.

Another specific object is to canse one pair ot rollers to be drawn inwardly sliglitly in advance of the other p-.iir ot rollers to partially crimp thc edges of thtx can head while the second set. of rollers complete the crimping operation.

Other objects and uses relating to specific parts of the machine will`bc brought out in the following description.

YIn the drawings 1-Figure 1 is a vertical sectional view partly in elevation of a machine embodying the various features of my invention. Figs. 2 and 3 are enlargedf'horizontal sectional views taken respectively on lines 2 2 and 3 3, Fig. 1, showing particularly the revolving head, portions of said head being broken away in Fig. 3 to show the underlying crank arms. Fig. l is an i enlarged elevation of the heads shown in Fig. l in operative position upon the head of a can. the lower portion of the non-rotatable head being shown in section. Fig. 5 is a vertical sectional view taken on line 5-5, Fig. 4, the shaft being shown in elevation. Figs. G and 7 are enlarged detail sectional views of one end of the can showing the can head uncrimped in Fig. 6 and crimped in Fig. 7.

The can, as 1-, is plat-cd by hand or otherwise lupon a suitable shelf or support 1- forming a part of the main supporting frame HZ of the machine, at'ter which the head of the can, as JJ- is placed by hand or otherwise upon the upper open end of the can ready to be crimped thereon, thc end of lthe cylindrical main body of the can being provided with an outwardly projecting annular flange -rL-, with which the marginal edge of the can head -bis to be interlocked.

A rotary axially movable sleeve 3F is journaled intermediate its ends in a suitable bearing -4.- on the main frame -2- and within this sleeve, and extendintr therethrough is a non-rotatable but axially' movable spindle -5--, around which `the sleeve -3- is adapted torotate.

Slidably mounted upon the lower end of the sleeve -3- is a head -6 having a central lengthwise socket --7- opening from its under side and ot' greater diameter than that ot thc slctwe forming an inner annular llaiige S Y at the upper end of the head t5- and littiug with an easy sliding fit upon the sleeve, tho lower end of the socket being closed by a screw cap or han; dened bearing plate 9A having a central aperture through which the lower end of the spindle --5 projects.

A collar lt) is loosely litted with an t easy rotary lit. upon the sleeve 3 `just above the head lt said head and collar being clamped together end to end by clamping screws --ll--- which' are passed through elongated slots 1:'2 -.in the fianges 8 Figs. tl and 5, and screwed into the under side ot' thc collar --1tl the screws serving to hold the head (3 and collar l0-- against relative endwise movement while the slots --12 permit a limited rotary or rocking movement of thc collar relatively to said head for a purpose hereinafter described. The upper end of the collar l0 is provided with diametrically opposite slots or recesses 13 open at the top and inclining downwardly and laterally in a direction opposite to the dii'ection of rotation of the sleeve 3 and heads 6 for receivingr radially projecting roller studs V 1f.1. which are secured to diametrically opposite sides of the sleeve 3--, as best seen in Figs. 1, l and 5. The lower end of the sleeve l 3 within thi: socket 7 is enlarged, forming an annular flange 15 which fits with an easy sliding t within the socket 7 said head 6 being locked to rotate with the sleeve 3 by means of a key 1(? Which enters a slotted key-way in the periphery of the flange l5- as best seen in Fig. 5. The vertical length ot' the socket 7 between the flange 8 and bearing plate Q is somewhat greater than the vertical de th of the flange 15 to permit a limited) endwise movement of the head G relatively to the sleeve 3Y which latter normally rests upon the flange l5 when the sleeve 3 spindle 5- and head their extreme up position, as shown in Fig. 1.

Secured to the lower end of the spindle 5 below the head O and bearing plate Q is a presser head 17 of slightly less diameter than the interior diameter of the can and having its lower face i made to conform to the shape or contour of the central portion of the head L of the can, the upper side of the head l7 being provided With a ball race 18 for rccciv ing anti-friction ball bearings 1t) which bear against the under side of the bearing,r 1 late lt ot the head Q- whcn said y leads arc in their cxtreme up or down posi tions, said bearings ltl-M serving to rei duce the l'riclion between the non-rotatable i head 1'T and rotary head The head t3- 1s of considerably greater diameter than that ol' thc can and carries 6 are in,

` 34 as best seen in Fig. 2.

a plurality of upright rock sliaris -tl and 2lwhich are spaced a uniform distance apart around the axis of the sleeve -3 and spindle 5 and some distance beyond the periphery of the head iT-- and also some distance beyond the extreme outer edges of the head of the can. These rock shafts 20 and 21 e tend vertically through and beyond theloner and upper faces of the head 6 the rock shafts 20 being provided on their lower and upper ends respectively with oppositcly projecting crank arms 2Q- and 23 while the rock shafts 2l are also provided vvith similar oppositely projecting crank arms 2-1 and 25 [he lower crank arms of the rock shafts project in the direction of rotation from their respective rock sha fte', while the upper crank arms project in the opposite direction, all of said crank arms belli arranged nearly tangential to a circle rawn through the axis of their respective rock shafts.

Mounted on the outer or advance ends of the lower set of crank arms 22- arc crimping rollers 2G and upon the -corresponding ends of the lower crank arms M are mounted somewhat similar crimping rollers 27 the set of rollers 2,6 which operate first upon the marginal edges of the can head to partially crimp the same, being provided with annular grooves 28 While the rollers 27 (which may be termed the finishing rollers) are provided with similar but slightly flatter grooves 29 The upper set of crank arms Q3- are provided on their rear or trailing ends with rockable contact pieces 30 adapted to be engaged by tangentially inclined cam faces 32 on diametrically opposite sides of the collar 10 said rocking contacts l0-- being pivoted to their respective crankarms 23 and are allowed a limited moveA ment against the action of suitable retracting s rings 31 for a purpose presently described. The rear or trailing ends of the upper crank arms 25 are provided with laterally adjustable contact members A -33 which are slidable laterally and adapted to be adjusted by means of adjusting screws Y These con tact.- .meinbe s --30 and 33- project inwardly a short distance beyond thc inner sides of their respective crank arms Q. and Q5- the contact members --23 be ing engaged bv tangentialiv inclined hearings or cam aces 3.1m which arc also mounted on diainctrically opposite sides of the collar l0- .'llu` cani t'iiccs have a more abrupt. incline and are .somewhat sliorter than the cam tai-es M so as to anse the rollers 2ll to be operated a short period in advance of the operation of the rollers 27 The precise operation llO of these cams and erim ing rollersI will be more fully explained a iter the description of the driving mechanism.

Jonrnaled in suitable bearings upon the main supporting frame is a horizontal driving shaft #361. a main upright shaft 3T-- and a countershaft 458-1 the driving shaft -3(-- being provided with a continuously rotating loose pulley -3t)- adapted to be connected to any available source of powei not shown, and also adapted to be connected to the shaft at the will of the operator through the medium of a clutch t0-J which is operated by means ot' a hand lever 41- and connecting rod 4Q- as best .seen in Fig. 1.

Loosely mounted upon the lower end of the main shaft H37- is a rotary sleeve -43- which is connected to the driving shaft --tby beveled gears 44M and is also connected to the eountershaft a38- by gears 451.

Secured to the upper end of the countershaft -38- is a gear -tG-4 which transmits rotary motion to the sleeve 3 through the medium of idle gears 47d and a pinion *l8-, the latter being keyed or feathered upon the sleeve 3%. as best .shown in Fig. 1. so as to permit the sleeve to move endwise relatively to the pinion JIS- This pinion is provided with a hub -19 which is journaled in a suitable bearing in the main frame -2- and is held against upward displacement by a collar -50-.

Feather-ed upon the lower end of the main upright shaft --37- is a clutch collar 51 which is movable into and out of engagement with a clutch section 52d on the lower side of the adjacent gear -44- by means of a foot lever #555-, Fig. l. Y

lt, is now clear that when the clutch A-LH is thrown into engagement with the clutch section -52 rotary motion will be transmitted from the driving shaft 3G- to the main shaft -H-37-, but when said clutch 51" is thrown out of engagement; with said section the main Shaft 37- will be at rest, and at the same time rotary motion is imparted to the driving shaft F38- and thence through the me diums of the gears -46-, -47- and 48M to the sleeve -B-e, whichV in turn rotates the head 6? and parts which are locked thereto. Theaxial movement of the sleeve 3 andspindle -5- is aecomplished through the medium of grooved earns 54- and 55- and levers 56- and -57-, the cams 541-4 and -55- being secured to the upper portion of the main shaft #-37- to rot-ate therewith and are only rotated whenthe clutch -lwis thrown into engagement with the clutch secor rollers which ride in their respective i grooved cams -lw and fifi-4. the outer end ot the lever #450m being provided with a lsimilar stud which rides in a grooved collar -t30-- which is secured to the sleeve The outer end of the lever -5T- is connected to a collar -t0- which is secured to the spindle ftlt is now apparent that the sleeve -3W may be rotated without moving said sleeve or spindle mit# axially, or said sleeve and spindle may be moved axially during such rotation of the sleeve by means of the mechanism pre viously described.

The grooved cams` *5l-n and vCuiai'e so relatively formed and positioned as to cause the spindle 5- to more downwardly to force the presser head 1.7 against the head of the underlying can slightly in advance of the downward movement ot the sleeve 3- and head G to assure the holding of the can head in proper position before the rollers Q6-- and 27' are brought into engagement with the marginal edges of the can head, whereupon the sleeve is depressed by the action of the cam -54- allowing the head G- to follow downwardly by gravity until the bearing Q- engages the roller bearings-194 in which position the rollers -2t5- and -Q7- are disposed in substantially the same plane butI some distance from the marginal edges of the head of the can, and by continued downward movement of the sleeve v3 relatively to the head -G- (which movement is permitted by the elongated socket the roller studs ltare depressed against the inclined sides of the slots d13- thereby rotating the collar -10- and cams 3:2- aud 35 thereon against their respective contact members -30 and lthereby rocking the corresponding upper lv crank arms -23 and Q5 outwar y against the action of suitable retracting springs --23- and -25 and effecting a corresponding inward rocking movement of the lower crank arms -22 and #24 into contact with the marginal edges of the head -bof the can. It is evident. however..A that the rollers -QGH will be first to engageand partially crimp the ymarginal edges of the head of the can by reason of the seper incline of the cams -32- and that these cams-32- will be moved beyond the contact points of the corresponding members -30 before the cams 353- complete their operation upon the vcrank arms -25, thereby allowing .the Contact members -30- to drop behind the cams 3Q- and thus'permitting the rollers 2G- to be rocked away from the marginal edges of the head of the can after performing their work. The cams -35-, however, which are longer than the cams -32- continue to further act u )on the arms 25- to press the rollers 2 inwardly and additionally crimp the edges of the head of the can to give the desired finish and hermeticallv seal the joint, this operation heilig accol'nplished during substantially half a revolution of the main shaft --37-, the remaining part oi' such revolution serving to draw the sleeve --8- and spindle -5Y to their normal up positions, the sleeve 3- being moved upwardly tirst and causes the rollers 14- to rido upwardly in the inclined slots l3- for rcstorino the rollers to their normal out positions. uring the upward movement of the sleeve -3- relatively to the head --6-, the Contact members -30- are forced backwardly against the action of the springs `-31- by and out of the path of the cams *32- toipermit the collar -10- to resume its normal position, said contact members 30- also assuming a normal starting position. The members 30- and -3- are normally held in contact with their respective cams `32- and -35-. As previously stated the cams -32- are considerably shorter and steeper tangentially than thc cams -35-, so as to cause the corresponding rollers -26- to engage and partially crimp the marginal ed es of the cap of the can in advance of the nishing o eration by the rollers -27--. That is Whi e the head is rotating, the free ends of the pawls 3Q-- ride up the inclines and drop in behind the cams -32- and effect the corresponding movement of the rollers -EG` to partially overturn the edges -Ziof the cap under the flan es -aof the can which action is imme iately followed up by the action of the cams on the arms 25- to finish the rrimping operation, the cams -35- having a slight vie ding movement under the action of suita le springs -35-. The upward return movement of the sleeve -3- and spindle 75- to their normal positions operates the return of the cams 32 and B5-- to their starting pfmitions, the spring 3l-- permitting the pawi -30- to trail over the point of the cam 32* and to assume its normal bearing upon the face of said cam.

The o eration of my invention will now be readi y understood upon reference to the foregoing description and accompanying drawings, and it will be observed that the two important features I wish to protect are first, the means for moving the crimpinv rollers inwardly and outwardly toward and away from the head of the`can, and also means for connecting and disconnecting the driving mechanism from the main shaft -37 which controls the reci rocal movement of the spindle 5" an head -6-.

What I claim isl. In a can heading machine, a rotary axially movable sleeve, a collar loose upon the sleeve, coacting means on the bollai. and sleeve for rotating the collar on the sleeve as the sleeve is moved axial y, a head rotated by the sleeve, rock arms on the head, courting devices between the collar and rock arms for rocking said arms as the sleeve is moved axially, and crimping rollers on the rock arms.

2. In a can heading machine, a rotary axially movable sleeve, a spindle passed through said sleeve, a press head on the lower end of the spindle, an additiona- :lead co-axial with and rotated by said sleeve, a collar loosely mounted on the sleeve, coacting devices between the sleeve and collar for partially rotating said collar on the sleeve as the latter is moved axially, rock arms on said additional head, crimping rollers on the rock arms and co-acting devices between the collar and rock arms for rocking the latter as the collar is rotated by the axial movement of the sleeve.

3. In a can heading machine, a rotary axially movable sleeve, a collar loose on the sleeve, a head co-axial with and rotated by said sleeve, diametrically o posite rock arms on the head, crimping ro lcrs on the rock arms, co-actmg devices between the sleeve and collar for rotating said collar relatively to the sleeve as the sleeve is moved endwise, cams on the collar, and means actuated by said cams for rocking said arms as the collar is rotated by the axial movement of the sleeve.

4. In a can heading machine, a rota axially movable sleeve a head coacting with and rotated by thesleeve, a collar loose on the sleeve and provided with inclined elongated slots, radial studs on the sleeve riding in said slots to rotate the collar relatively to the sleeve as the sleeve is moved endwise, cams projecting from tho periphery ot' the collar, rockshafts journaied on the head, rock arms contacting with said cams and se cured to said rock shafts, lower rock arms secured to said shafts, and crimping rollers on the lower rock arms.

5. In a can heading machine, an upright main shaft, a sleeve`rotatableon the shaft,

.means for rotating said sleeve, an upright counter shaft, means for transmitting rotary motten from sleeve to counter shaft, a rotarytixially movable sleeve, means `for transmitting motion from the counter shaft to the last named sleeve rindependently of the main shaft, means for connectin and disconn( cting the main shaft to the rst named rotary sleeve, means actuated by the main shaft for moving the second sleeve endwise 7a head co-axial with and rotated by sai second sleev rock arms carried by the head, crimping rol lers mounted on the rock arms,

and mechanism actuated by the axial move'- inent of the second sleeve for rocking said arms.

In a can heading machine, a main u right shaft, a sleeve loose upon the sha t, means for rotating said sleeve, a clutch for connecting and disconnecting the main shaft to the sleeve, a counter shaft, means for transmitting motion from the sleeve to the counter shaft, a second sleeve rotatable and movable axially, means for transmitting rotary motion from counter shaft to the second sleeve, a nonrotatable spindle assed through the second sleeve and movab e axially thereof, a press head on the lower end of the spindle, a crimping head on the lower end of the second named sleeve, crimping rollers on said crimping head, means actuated by the axial movement of the second sleeve for moving said rollers toward and from the axis of the Crim ing head, means actuated by the main shaf for moving the sleeve axiall and additional means on said main shaft o1' moving the spindle and press head axially.

In Witness whereof I have hereunto set my hand this 8th day of May 1909.

EDXVRD J. MORRIS.

lVitnesSes:

H. E. CHASE, Zon MILLER.

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