US1492585A - Can-body-making machine - Google Patents

Description

May a, 1924. 1,492,585

Y J. T. TAYLOR CAN BODY MAKING MACHINE Filed Feb. 16. 1921 6 Sheets-Sheet 1 May 6 1924.

J. T. TAYLOR CAN BODY MAKING MACHINE Filed Feb. 16. 192i 6 Sheets-Sheet 2 May 6 1924.

l l fi i J. T. TAYLOR CAN BODY MAKING MACHIIQJE 6 Sheets-Sheet 3 iled Feb. 16.

May 6 1924 i,492,585

. J. T. TAYLOR CAN BODY MAKING MACHINE Filed Feb. 16. 132i 6 Sheets-Sheet 4 may 6 1924.,

Fi led Feb. 16. J-Ul v 6 Sheets-Sheet 5 May 6, 1924.

' J. T. TAYLOR CAN BODY MAKING MACHINE Filed Feb. 16. 1921 6 SheetsSheet 6 WW HH HHI HHHUIIIHI Patented May 6, 1924i.

as -ATENT orrica.

JAMES T. TAYLOR, OF SPRINGFIELD, OHIO, ASSIGNOR TO THE ELWOOD MYERS COM- PANY, OF SPRINGFIELD, OHIO, A' CORPORATION OF OHIO.

CANTBODY-MAKING MACHINE.

Application filed February 16, 1821. I Serial No. 445,311.

To all whom it may concern.

Be it known that I, JAMns T. TAYLOR, a

citizen of the United States, residing at Springfield, in the county of Clark andState '5 of Ohio, have invented certain new and useful Improvements in Can-Body-Making Machines, of which the following is a specification.

This invention relates to improvements 1 in the method of and apparatus for making sheet metal cans; it relating more particularly to the construction of the body of a can of the'type which is provided with a hinge pintle for the lid. The particular object of the invention is to provide a method and apparatus for constructing can bodies whereby the blanks may be automatically fed and the hinge pintles for the lid may be thereafter applied at a point between the feeding operation for the body blanks and the operation of forming the body. In explanation of this object it might be said that while, in the ion mation of can bodies by machines now on the market, it hasbeen common to apply the hinge pintles before the operation of forming the body, in such machines it is necessary to feed the blanks with the pintles thereon to the body forming mechanism by hand for the reason that such pintleequipped blanks cannot be handled by the automatic feeding devices employed in machines of this character; further, that it has also been common to automatically feed the blanks to notching devices to form the pintle knuckles and thereafter to the body forming mechanism, the pintles being afterwards applied by a separate mechanism. By my improved method and apparatus, I am enabled to employ the automatic feeding devices for the blanks and then automatically convey them to notching, pintle'applying and body forming devices which are all embodied in a single machine so that the completed can body will issue from the machine with the pintle applied.

' A further object of the invention is to devise a pintle applying mechanism of simple and effective construction, one of the features thereof being that it is so arranged that the wire forming the pintles may be fed in a line transversely to the travel of the body blanks, permitting the pintle to be applied to the forward edge of the blank so as to leave the. side edges free to be flanged later,

of Fig. v13;

by the body forming mechanism, and also resulting in greater accuracy in the application of the pintles to the blanks for the reason that any variation in feed would have the effect only of applying the pintle's at a greater or less distance from the top edges of the bodies, whereas if the pintles were applied atthe sides, considering the direction of travel, variation in feed would cause the pintles to be applied at varying-pointsin the widths of the bodies, making it diflicult or i IIIPOSSlblB toafterwards properly apply the In the accompanying drawings F'g. 1 is a top plan view of abody forming machine embodying the improved pintle applying devices.

Fig. 2 is a vertical section on theline 22 of Fig. I.

Fig. 3 is a side view of the pintle applying devices showing the same in operated position.

Fig. 4 is an end view of the same, showing the parts in inoperative position.

Fig. 5 is a vertical section on the line 55 of Fig. 4:, with the parts in inoperative position. I

Fig. 6 is also a section on the line 5 5 of Fig. l, but showing the parts in operated position.

Fig. 7 isa top plan view of the platen or block upon which the blank rests as the pintle is beingapplied. I I Fig. 8 is an enlarged detailed section of a portion of the machine, the section being 011 the line 88 of Fig. 1.

Fig. 9 is atop plan view of a portion of the can body blank showing the same after the notching operation which forms the knuckles for the pintles.

Fig. 10 is a View of the same part of the blank after the application of the pintle.

Fig. 11 is a section on the line 1111 of Fig. 10.

Fig. 12 is a bottom plying head. Fig. 13 is a topplampartly in section, of the wire feed device's.

Fig. 14 is a section on the line 14 14 plan ofthe pintle ap- Fig. '15. is a detail of the same.

Fig. 16 isa view of the forwardend of the v alcllizne i All 'ofthe operating parts oi the machine are "mounted iupon 'a' table. in At the forward end of this table is located the auto matic feed mechanism which has an inclined hopper 2 in which the body blanks 1n the form of metal sheets are vertically arranged.

This mechanism operates on the principle of the feeder described in Letters Patent No.

present case and that of the Kruse patent referred to is that the blanks are arranged in .a vertical direction in the hopper 2 and are removed therefrom by the suction device 3 at the inner side of the hopperinstead of at the bottom, and, further, that there are employed on each side of the hopper a series of finely serrated rolls 4: which are revolved reversely to the direction of travel of the metal sheets and whose serrated faces engage the side edges of the sheets and thereby. separate thesheets to prevent feeding more than one sheet at a time. The rolls are driven from the shaft 19. This shaft 19 has at its forward end a gear at which drives a. gear 4t which in turn drives a vertical shaft t through the medium of apair of beveled gears (not shown) mounted in a casingd This vertical shaft has its upper end geared to ahorizontal shaft t provided with two beveled gears t which mesh with beveled pinions l connected respectively with the rolls 1. The suction device 3 which is in the nature of a cup, is mounted at the upper end of an'arm 3 the lower endof which is connected with a sleeve 3 mounted upon a stud whose head is indicated at 3 andwhich is journaled in a bearing 8. The sleeve 3 has connected therewith a rod 3 the lower end of which is connected to a crank arm 3 on the end of a shaft 3 this shaft being geared to the shaft 4 through the medium I of beveled gears (not shown) located in the casing 39. Suction is created in the suction device 3 through a pump 3" whose piston rod 3 is connected with an eccentric'pin 3 on the gear l The pump is connected with the suction device through the pipes 3 hollow stem 3 leading to the sleeve 3 and arm 3* which has a passageway therein.

Each blank is deposited by the suction dc-riie, which swings upwardly and down. wardly on the arc of a circle, upon the forward ends of a pair of supporting bars 5, and its rear edge is engaged by hooks 6 on the forward end of reciprocating carrier bars 7, arranged between the bars 'and guide bars 8 which lie'above thesame. The

blank, as the carrier bars reciprocate rearwardly, is carried beneath the upturned ends of keeper strips 9 located above but spaced slightly apart from the supporting bars 5. The bars 7 are provided at suitable intervals throughout their length with spring-pressed fingers 7*, which, as the bars reciprocate, engage the rear edge of the blank and carry it rearwardly to proper points to be operated upon by the various mechanisms, these lingers, as the bars reciprocate forwardly, yielding so as to ride under the blank. This carrying mechanism is very similar to that described in the Kruse patent referred to and also in some of his later patents which will be hereinafter referred to; the bars being operated by suitable devices (not shown) to impart a reciprocating movement;

the punching mechanism which operates to.

punch the blank in the manner shown in Fig. 9 to form thereon tongues. The punch 12, (see Fig. 8) is connected to a slide 13 mounted in gibs 18 carried in recessed arms 14 of a yoke shapedsup-port l4, and the punch cooperates with a die 15 on the table 1 to punch the blank in the manner before described. The slide ispivotally connected through a rod 16 with the bifurcated end of a rocker arm 17 pivoted on a pin 13 on the support 14, the other end of which is pivotally connected to the rod 18 (Figs. 1 and 2), the lower end of which is forked and straddles the cam shaft 19, having a cam 20. which cam has an operative connection with a cam roller (not shown) on the rod 18.

' After the punching operation, certain of the fingers 7 a on the bars then carry the blank to the pintle applying mechanism wncre a pintle is secured thereto in the manner snown in Fig. 10. This pintle applying mechanism is carried at the lower end ofpa slide 22 (Fig. 8) mounted in gibs 23 carried by one of the arms 14 of the support 14- connected with the rocker arm 17 through the rod 18 previously referred to. Secured to the lower end of the slide by the bolt 24.- is a head'QS. Slidably mounted in this head are two transversely extending rows of wire guide pins 26. Adjacent pins of the respective rows have their upper ends reduced and extended into a guide plate 27 which is slidably mount ed in a chamber 728 in the head, and interposed between this guide plate and the upper end of a recess 29 in the slide is a spring 30 which normally projects the pins downward 1y to the position shown in Figs. land The lower face of the head is provided with a longitudinally extending groovewa 31, a part of which is divided by a wall as indicated in Fig. 12. Slidably mounted in this groove and held therein by a keeper plate 3:2, secured to the head by the screw 33, is a plun er 34. This plunger has an elongated opening to accommodate the'screw 33and also a re- Its rear portion has'a square opening 8 6 separated from the eXtrenieend' thereof by a rounded cross-piece 37 which is: designed to operate in an inclined groove 38 of an ope1-.

ating member 39. TThi s operating member 39 is slidably'mounted in a guide lO tsee Fig. 2) and is projected upwardly and downwardly therein from a cam 41011 the cam shaft 19 through the medium of a rod 4-2, which carries at its lower end a roll (not shown) co-operating with the cam and is connected to the operatingflmember 9 by thepivoted link 43 and'earjt t.

Before the operation of'the pintleapplying devices thus far described, and just be fore the blank has come to. restbeneath the applying devices,- a length of wire toi form the pintle is fed to positionbetween the blank and the head The wire feeding devices are illustratedin Figs. 1, 2,. 13,;and 14; The wire may be mounted upon arreel (not shown) and firstpasses' tl1rough a tension device (Figz llconsisting ofa pairtof-"wooden blocks45 :held together by adju'st'ablercl'a mps 46 carried 'by' the support 47; "From thetension device the wire projects through? a "feeder consisting of a "head 48" having a channel through which the wire passes and a slot-4 8 within-which is located a'clutch member 50, pivotedon'the'pin 49 and having a rounded clutching face 51 which swings in a'recess 52,

formed'on'the arc of a circle and which communicates with the wire ch annelso as to allow the clutching face to'en'gage the wire. The head 48- preferably has-a. hardened pin 53' inserted therein formed with a iV-shaped notch 54 'in line with the wire "channliin the head. The head48j ispreferablyi integrally formed with the upper end'of 1a rockerfarm 55 pivoted to a bracket" 56 and having its lower end connect'ed'toi a rod57'which carries-a cam roller' (not shown) "coeoperating with a cam 58'011" the camshaft l9is'o asrto impart transverse rocking movements toithe Means are provided for causing: the clutch dog 50* to engagethe wire to; feed the same only at suchtimes as blanksare being'fed vthrough the machine. J'At-a 'proper ti'nie the end of a rodi'59-is projectedintofthei'patliof the tail 50' of the clutch by a finger-6O coming in contact with a blank rocking shaftfil, ll'aving a crank arm-52,10 which :is pivoted the connectingrod 59;:lf'noi-blanks --a're passing through thecmachinefafspring 63, inte1-posed*"be-tweena: collarrfi'aon the'rdd and the support 47 through whichtherod 59 extends, projects the "rod out of th'e tpath of the t-ail fill rocking ,the shaft 61 and dropping't-he finger to a positionto be raised by any oncoming blank. Also interposed in'rthepath of the tail 50 is an adjustable stop 65 in the nature of a v v 'screwthreadedina lug on the support 47; cess '36 to accommodate-the wall" portion 525.

this stop being so positioned as to disengage the clutch from the wire as soon as the proper lengthofwire has been fed to form -a pintle. As: the feedimechanism operates to feed the wire, the end of the wire is projected between the rows of pins 26 toproper position extendsfand in which the wire alwaysremains. As the head nowdescends, this cutter, striking the blank 3 which is being supported by a'die block 69', moves upwardly and co-operateswith' the lower edgeof the" headfto shear the wires The'head 'has now descended to a point to force the cut-off portion of the wire onto the blank just above a groove 70 in thed'ie block which forces the imetal' ofthe blank into the groove, therebyslightly-raising the ends of the tongues?) ;the

in FigclQ. These tongues "lie in th'e path of geris now operated by the operating device -39, the tongues, will be'bent over the pintle in the manner shown" in Fig. '10, withthe ends of'the pintle resting upontheblank at the respectivesidesbf the cut-out portion. A spring 71 (Fig.3) serves to hold the plunger-34 in inoperative positiong'z i i From .the pintle applying mechanism, the

'blanksmare carried to the body forming niech'ani-sm, "where the side edges of the blanks are first formed with hook shaped "flanges and then'bent about a former. the

"hooks interlocked and then clinched. This .body forming mechanism hasb'een indicated in a "general way by the reference character C. and is of awell known construction, being -show'n in the Kruse' patent previously frefer're'd' to'and also in "the following patents of the. same inventor Nos; 1,129,302 dated jF8bL-23f'1915; 1.135.534 dated Apr. 13, 1915; ".'1 ,24;2;206,"d3,ted -Oct19, 1917; 1,244,056 dated 'DctI-23p19l7.

A brief as'followsz The blanks are fed one by one by the auto- .Inatic "feeding: mechanism, being deposited upon the bars '5, along-*- which 1 and beneath s-the keeperi' strips 9' they are intermittently "carried vbytheireciprocating" carrier bars 7, firs' ttothe notcher; then to the pintle apply- 1 ring 2 mechanism' and then' to the body forming mechanism: The" operation of feeding :tthe wire?is 'performed during the carrying -i-' fnov*en1entss of the blanks-so thata length of wire is in position to be severed and applied.

vunderis urface of'the head having grooves 25" I "to receiveiand centralize the \VlIB, as shown description of the operation is so soon as a notched blank hasbeen fed to proper position for the pintle applying operation. A succeeding blank has also beenfed toposition beneath the notcher, and,

during the interval of rest of the blanks as the carrier bars are reciprocating forwardly,

the operations of notching and pintle apcate rearwardly and a new length of wire the pintles upon the forward edge of the is fed by the feeding devices.

By the constructions described, it ,will be seen that the can bodies when discharged from the machine are equipped with pintles to form hinges for the lids which areaftcrwards applied by a separateoperation. In asmuch as the pintle applying mechanism operates simultaneously with the punching mechanism, it requires no additional time to apply the pintles, so the capacity of the machine, by reason of this additional pintle applying operation, is 'not therefore decreased. By the specific arrangement of pintle applying mechanism including the wire feeding devices, I am enabled to apply blanks, considering the direction of travel, thereby permitting the blanks to be fed directly in a straight line' to the body forming mechanism of the machine, the arrangement of which is such that the blanks are flanged upon their side edges.

Further, by reason of thefact that the pintles are applied upon the forward edges of the blank any slight variation in the feed of the blanks and consequent variation in the position of the pintles will have no appreciable effect so far as thereafter properly applying the lids to the bodies is concerned, as any such variation would only result in the application of the pintles in positions more or less slightly removed from the upper edge of the'bodies, whereas in machines which apply the pintles at the sides of the blank, considering the direction of travel, variations in feed would result in variations in the positions of the pintles in relationto the width of the bodies, thus making the subsequent application of the lids diiiicult and in some cases impossible.

Having thus described my invention I claim 1,. The method of applying pintles to can body blanks consisting in automatically feeding blanks one by one, punching the blanks on their forward edges with relation to their direction of travel to form pintle knuckles and then applying pintles to the knuckle portions of said blanks.

2. The method of applying pintles to can body blanks consisting in automatically to metal receptacles, the combination of means for intern'iittently feeding metal blanks in ,a straight path through the machine, wire feeding means arranged to feed the wire transversely to the path of more ment-of the metal blanks, and means for securing the severed portion of the wire to the'blank-for forming a pintle thereon.

4. In a machine. for attaching wire pintles to metal receptacles. the combination of a hopper having plain metal blanks therein, automatic means'for feeding same from said hopper and. transmitting same by an inter- .mittent feeding motion, means for cutting notches and forming knuckles on the edges of same during sald intermittentfeeding movement, means for feeding 'wire to said notched blanks in a path transversely to the pathof. movement of the blank, means for cutting pintles from said wire, and means for attaching the pintles to the notched blank.

5. In a machine of the character described, blank carrying mechanism, and pintle applying devices arranged to apply a pintle to an edge of a blank which lies at right angles to its direction of travel.

6. In a machine of the character described, blank carrying mechanism, and

pintle applying devices arranged to apply a pintle to the forward edge of a blank considering its direction of travel.

7. In a machine of the character described, blank carrying mechanism, and pintle applying mechanism for applying pintles to the forward edges of the blanks, including wire feeding devices for feeding wire transversely to the direction of travel of the blanks.

8; In a machine of the character described, pintle applying mechanism, and

wire feeding devices for the same. said mechanism having a plurality of yieldable wire guides arranged in rows.

9. In a machine of the character described, pintle applying mechanism comprising a slidable head, a plurality of wire guides arranged in two rows normally yieldably projected below said head, and wire feeding devices associated with said head;

In testimony whereof I have hereunto set my hand this 4th day of February, 1921.

' JAMES T. TAYLOR.

Witness: i i (inns. I.-Wntcn.

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