US1202685A - Feeding means for can-body blanks. - Google Patents

Description

J. BwDRESEL. FEEomG MEANS FUR CAN ODY BLANKS.

APPUCAUON FILED JULY 5.19%6.

` Paltmlvd Urt. 24, 1916.

2 SHELTSMSHEET l.

mm www III V wnrNEssEs i wma u? J. B, UHES MEANS FUR CAN BODY BLANhb'.

Pmcmmw man .'ULY 5. |916,

FEEDING lmnml. on. 24,1916.

2 SHEEIS--SHEE1 2.

.NvENTon- Bresse! the removal of the UNITED STATES PATENT oFFroE.

JOSEPH BERNARD DRESEL, 0F WEIRTON, WEST VIRGINIA, ASSIGNOB T0 THE PHELPS CAN COMPANY, OF BALTIMORE, MARYLAND, A CORPORATION 0F WEST VIRGINIA.

TEEDING MEANS Specification of Letters latent.

Fon GAN-BODY BLANKS.

Applipaton led July 5, 1916. Serial No. 107,6645.

To all whom it. may concern:

Be it known that 1, Josevi-1 B. DnEsEL, a citizen of the United States, residing at VVeirton, in the county of Hancock and State of lest Virginia, have invented a new and useful Feeding Means for Can- Body Blanks, of which the following is a specification.

This invention has reference to feeding means for can-body blanks and its object is to avoid certain objectionable features of feeding means heretofore employed for the purpose. a

Prior to the present, invention the canbody blanks, which consist ofiiat sheets of tin of appropriate size, were fed from the bottom of a pile by means of a suction mechanism pulling the bott/om Sheet of the pile downwardly into the path of feeding fingers, which in turn carried the sheet thus separated from the pile to the portion of the machine in which they were subsequently treated. (')n being moved from the neighborhood of the pile each sheet` traveled under spring devices, which latter because of the manner of separating the sheet from the pile were liable to become roughened by engage- Ament with the edge portion of the removed sheet, and in time the removed. sheet would catch on the spring devices, thu's causing clogging of the machine and necessitating impediments caused by the clogging of the sheets before the opera- `tion of the machine could be resumed.

Both in the feeding mechanism as pre viously constructed and as constructed in accordance with the present inve 'on the bottom sheet is engaged and pullerpwnwardly away from a. pile of supenpbsed sheets by a suction tom sheet at about the middle with the ends still, supported, so that the sheet in being Tied away treatment of the sheets it was customary to employ spring holding means, in the form of spring fingers, at an intermediate point and at the end portions of the sheet with such sheet progressing in a direction transverse of its length under the spring, fingers until resting upon a table with the fingers pressing flat upon the top of the sheet. Because of the bowed shape of the sheet as 'pulled away from the pile the spring lingers toward the ends of the sheet were engaged thereby device engaging thbotl from the pile of sheets becomes. owed, In the machine for the subsequent adaptable.

at a considerable distance above the level at Winch the m1ddle portion of the sheet engaged the corresponding intermediate spring tions of the sheet are supplemented byV presser devices so arranged that the wear of the spring fingers heretofore occurring is obviated and the sheet reaches the subsequent portions of the machine in the ordinary flat condition, where-,biA liability of distortion of the sheet and the troubles ensuing therefrom are whollyr obviated.

T he invention will be best understood from a consideration of the following de tailed description, taken in connection with the accomrnmying drawings f'oru'iing part of this specification. with the further un derstandingfthat whilethe drawings show a practical form of the invention, the latter is not. confined to any strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modificationscome within the scope of the appended claims.

In the drawings z-Figure 1 is a. side elevation of the feeding end of a locking machine for can bodies with the invention applied. Fig. 2 is an end elevation of the structure of Fig. l, distant parts of the loclr devie being omitted. Fig. 3 is a. pla view of the structure of Figs. 1 and 2. Fig. 4 its a perspective view of presser feet embodyingthe present invention and 'adjacent parts of the locker modified to adapt them to the presser feet. Fig. 5 is a section on the line 5-5 of Fig. 3.

Referring to the drawings there is shown the feeding end of a can-body locker 1 of khown construction to which the structure of the present invention is particularly Such locker is provided with a rcservoirQ fora pile 3 of can-body blanks from the bottom of which, as will presently braeket 7 supporting a guide H for a reciplib roeatory member J provided at the` upper end with a suction head 1() and at the lower end with an eccentrif.I strap or ring 1l. The plunger or reeiproeatovr)y member 5) is; hollow for a portion ot its length" with the hollow interior'connnnniyatlng with the head 10 and with a tiexible pipe 1Q in turn connected with :1 suitable suction apparatus, `whereby air is continuallyr exhanatell through the head 1U. The eceentric strap encireles.an

eccentric 13 mounted on a eonntershaft 14(` having journal bearings 15 in a drop p0r-l tion 16 ol the bracket 7. The eccentric 13 is secured to one end of the shaft '14 while at the other end thereof there is Secured a sprocket wheel 17 connected by a sprocket chain 18 to another sprocket wheel 1U on a sha l't 2() having a journal bearing 2l on one. of the legs 4 of the locker,

The nieehanisn'z so far described may be the saine or snbstantiallyr the saine n.5 ia already in use upon installed ran-bod)Y lockers, except as the mechanism is changed to acmnnmmlate the present invention.

The Areservoir 2 eoniprisee` end members 22 which mayY be of channel eonstruction. These end members are joined at the top by a bar 23 loeated near the ends ot' the ehannel members 22 adjaeent to the table 5 ot' the locker. The bar 23 carries a stop linger '2l depending theretron'i in the path of the pill` of eau bod;Y blanks. and this finger has an angle end :5 provided with an elongated slot :lo through which there extends a bolt 2T traversing the bar Eil. so that the linger nia" be adjusted lengthwise ol' the loc-ker to properly position piles` of ran bod;l blanke ot' different widthe.

'l`o provide for ranbod blanks of dill'el'` eut. lengths the end channels 2;! hare. their npper Hannes: eonnerted to the bar 23 by boltsl 2h' extendingthrough slots 29 in the The lower webs ol the channels 2Q are connected by bolts 29 to a leg on eaeh oll two terminal castings Ill made fast at appropriate points to the top of the table .3 by bolts 9; extending through elongated slots Il in they castings 2&1. thus permitting the adjustment ol the ehannels '22 toward and l'rom each other in a direction eroaswise of the table .3, whereby the reservoi r 2 may be made to aeeonunodate and renter ran body blanks ol dillierent lengths, the stop linger 72-l performing;` the saine .servire with respect to caxrbodyv blankeI of dillrrent widths. B5" this means piles ot' can bod)v blanks )nav be eentered over the suction head 1Q with snllicient accuracy.

Seouredlto the -nnder .side of each leg 30 b xineans ol' bolts 3l is a plate. 35 having `:slots therein for the paseage of the bolts SH, \\'liereb the plate Ilo may1 be adjusted. Une edge ol" each plate 3.7 is formed with an npturned flange. 3T constituting a rest or support for the pile 2l ol' blanks. ily hips means the pilel 3 is supported close to lts ends and the lowermost blank may be rend il)r engaged by the head 1U and drawn down wardly away from the bottoni of the pile while. the extreme edge portions of the with drawn plate. remain in engagementn with `the langcs and support the )lanka above itil Movable along the bed 5 in" Suitable grooves 38 formed therein are slide hars 39 usually termed trigger bars because they `are varranged with catches or triggers to pro gressirely propel the can bodies from the reservoir or magazine 2 to the locking mech-- anisin. the strnetnre of these trigger bars forme no part ol' the present invention it is not shown in the drawings. Each trigger har il!) terminates at one end in a. nose -ll into the path of which the bottom one of the can bodies ol the pile is drawn by the suction head lll when the latter is lowered al'ter being attached to the can bod)`- blank.. The trigger bare fl are nimed by proper ineehanism, not shown, in a direction to propel the lowndrawn blank onto the table o. after which the trigger bars return t0 a position to engage the next blank in order vhen it is drawn down by the suction merit-es.

Un the table 5 and in the path of the can body withdrawn from the reservoir 0r magazine. thereof is a epring presser finger 41 with an uptnrned end 42. the presser finger heine rlosel)V related to the top snrfaceo the table so as to hold can body blanks eloee to the table with elastic pressure. There are other sprintr lingers 43 with upturned ends r`l-l located on opposite sides of the linger l l'l at Snell distanee therefrom that the trigger bars Bil are between the fingerlfl and respertiie lingers 13. The npturned end 42 of the linger l1 Close to the magazine of ean body` blanks, while the upturned i ends 1H of 'the lingers Yt3 aremore distant-'- therefrom.

llxtending* across the `table 5 above the surl'aee ol the latter and above the linger 41 is a rock shaft lo mounted in journal bearingw `lll at the sides of the table. This rock shaft extendn at one end beyond the Corre spondinp,r eide ot' the table and there bag fast to it au arm lT extending radially nfrom the shalt. 'l'o the onter extremity ofthe arm 47 there is itlaehed one end of a spring 48, the other end of which is made 'FastIto a Stud 0n an upright lfl secured to one side, ol the. table The tendency nl' the. spring 4S is to pnll the arm 177 downwardly, thus imparting to the Shaft 45 a tendency to rock in the direc lll tion of constraint of the arm 47. Secured to the shaft are 'other arms 50 each carrying at the outer end a spring 51 and at un intermediate point a rod 52. The spring 51 is connected at one end to the arm and at the other end to an upturned toe or extremity Y 53 of an elongated shoe 54, which latter at 57 fast to the upright 49. At the lower end the rod 56 carries a roller 58 bearing upon a cam 59 secured to the shaft 20 so as to at all times engage with and support the cam 58 and with it the rod 57.

The shoe 54 with the arm 50 and spring 51 and also the rod 52 constitute a. presser `foot for can bodies moved under the shoe 54. There are two such presser feet one in ad- Vance of each s ring finger 43 in the direction of travel o the can bodies.

While a can body blank is being moved from the magazine on to th.v table 5 the cen trai' depressed portion of the blank is at a ylevel substantially the same as the top of the table and' readily moves under the spring linger 41 without engaging the upturned end 42 thereof at a high point to be forced by the upturned end toward the table.

The parts are so timed in operation that as the can body blankis removed. from the magazineand asthe extremities of the blank are moving off from the llanges 37 the front edge of the moving blank is brought into engagement with the shoes 54, which at this time are tilted so that the heel portions are upon the table 5 and the front portions 53 are' elevated.

About the time that the can-body blank reaches the shoes 54 the cam 59 has moved sufficiently sothat its high point previously under the roller 58 has moved away from such position when the spring 48 is permitted toV act to lower the shoes 54 toward the table 5, the springs 51 serving as elastic means. for eliminatmg rigidity of the parts.

The canbody blank moving upon the table y,

5 ie therefore dually and evenly pressed down to theta e, but with elastic rassure and the angle of the shoes 54 forming part Lof the presser feet becomes progressively more acute with relation to the line of travel of the blank, so that there is no liability of any' wearing or cutting action of the shoes" 54 which would tend to form ridges to catch successive blanks and thus cause them to bend or buckle and thereby become distorted ference.

and interfere with the working of the machine.

In order to guide the blanks after being initially lodged on the table 5 as removed from the magazine there are provided clon gated guide bars (i0 with slots 61 for fastening bolts (l2 permitting adjustments of these bars corresponding to the adjustments of the castings V31. j

As each can-body blank is moved away' from under the presser feet the latter arr tilted, that is, the fronts 53 are raised by rocking with the Ishaft 45, while he heels of the shoes 54 rest lightly on top of he table So that the presser feet are in position t; per mit moving the next can body blank onto the table from the magazine without inter- Then the presser feet lower into y engagement with the can body soplaced and hold it with elastic pressure While the trigger barslreturn intq position to engage the next blank in order a`nd to engage the already placed can blank to move it out of the way and toward the locker mechanism as the next succeeding can body blank is delivered on to the table to be acted on in the same manner by the presser feet as the first-named can body.

The arrangement permits the successive placing of the blanks on to the table without AWear upon the linger 41 or the presser feet, Wherefore there is no liability of catching of the can-body blanks upon any portion of the machine whereby the can blanks would be bent or buckled and so distorted in a manner resulting in the clogging of the mav chine and the necessity of clearlng'it` before it can proceed, such clearing meaning a demeans for removing can-body blanksl from the magazine. 5

2. -A feeding means for can-body blanks, comprising a magazine for a pile of blanks, means for moving the blanks one at a time from the magazine` rockable elastimpresser lfeet in the path of the can-body blanks as removed from the magazine, and means for rocking the presser feet timed- ,in operation to actuate the presser :feet in alternation with the movement of the blanksfrom the magazme.

3. A feeding means for can-body blanks, comprising a magazine fora pile of blanks,

hit-am l'or inmingi one blank ati n time from thv magazine, ami tiltablv hreasti-ifevt for thv blank` eavh vonnn'iing a shoe with nivamj l'or ti|t"in;V thv .eline :intl elashiv niearn hrm hline a 'ivltlabh hai-king: for the IQhoe.

leetlingij means for ean-hollJ blanks`r voinhx'iaing a magazine for a pile of blanks,

4nwanzf for lelirvring the blanks one at? a time from the hottoni ol theI pile, a table ontio which the blanks are lleliVerl-(l. epring fin-` ;fvrk l'or Vlg-m-iiingf anil holding thv blanks on the tabv al inivrmviliatin and end portionsA nt thv hiankfwith thv spring 'finger for engaging the intel'xneiliaiv portion of (he blank closer to thv niagalne than thv other ln- 1n-re. |n'v.\.-:vr l'ev lovfitvri between the .st-continana-tl linger antl the magazine, and means VI'oi' roi-kings the prvrvr feet toward and from tlnl table to engage :unl release the blanks anti to holrl the blankeI in ifon'ilniction with thv. spring fingere.

fi. ln a feeding: ineens for can-hotly blanks haring! a magazine for the blanks and means for Lleli\'eringr the blanks one :1t a time from the niagazine. piwfssvv feet for engaging the delivered blanks. wirfh present' foot cmnprisingr a, shoe. :intl nivaney for moving the Shoe into am] ont or engagl'vlnent with :i delivered blank consisting ol* a roek:1r1n with a hinge vonneetion between an intermediate portion of the roekwlrin antl an intermediate por tion of the Shoe. anrl a spring Connecting the outer portion of the rock-arm with tithe correspomling onil'r portion of the shoe.

A feeding: means for (van-body blanks, f'onipriaing' a lnagzine for a pile of blanks, nii-ans for rleliveiging the blanks one at a, time from the nmgazine, and presser fevt and operatingg,- menne there-for comprising a rocksha'tt, rock-urine on the roelvehaft with one ol' the rock-:mns haring a spring connection to :1 fixed )1m-tion oi" the n'mehine for conL straining the roekehal't Loa'artl :1 predeterniinvd lmsition, anrl shoes,connected to the othvr rovk-arnin, saiil eoiineetions including a liiinrv connection and a yiehlahle conneei tion, whereby the shoes will he in an lllar rel lation to an advancing blank when nst; presented to the shoes. and will then press flat upon the Shoes duringr further movement i! thv blankey under the shoes.

T. A Feeding;r means for ean--lmtly blanks, minimising a magazine for a pile of blanks, nphorts for the enr] portions oF the pile of blanke. auction means 'for moving the lowerniost blank away from the pile, :i` table onto whieb the blanke :1re delivered, means 'for moving the blank drawn away from the hottom of the pile onto the table, spring fingers for engaging the blank when on the table, press-e1' ,feet between the magazine and tain of the spring Fingers, said presser feet, comprieing shoes and r0ek-arms with hinge and otherwise rigid connections between the vo karn1s :nul :shoes nt intermediate points of both` and springl connections between the outer @mi portions of the 1-oek-arms and shoes, a roek-shaft Carrying;r the rock-arms, another rock-arm on the rock-Shaft, a spring connected ut one end 'to the free end of the last-named rock-arm and at the other encl to a fixed portieri of the maehine, a slidable rod engaging the last-named rock-arm, and al cam Yfor engaging the rod to move it in the direction of its length.

In testimony that I claim the foregoing as my on'n` l ha ve hereto allxed my signature.

JOSEPH BERNARD DRESET.

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