US959454A - Machine for heading metal blanks. - Google Patents

Description

v A. G. CAMPBELL.

I MACHINE FOR HEADING METAL BLANKS. I APPLICATION 11.21) APR. 28, 1909. 959,454. Patented May 31,1910.

4 BHEETS-BHEET 1.

WITNESSES: INVENTUR M 2 My, M-

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' Nib/ME) j APPLICATION FILED APR. 28, 1909.

Patented May 31, 1910.

4 IHBBTB-SHEET 2.

v WITNESSES." "IVE/ T03 I nfronmzr A. 0. CAMPBELL. MACHINE FOR READING METAL BLANKS.

APPLICATION FILED APR. 28, 1909.

Patented May 31, 1910.

4 SHEETS-SHEET 3.

WITNESSES:

74M Z/YZW 3 I M/VE/VTOR I v I ATTORNEY I A. G CAMPBELL.

MACHINE FOR READING METAL BLANKS.

APPLICATION FILED APB. 2B, 1909.

- Patented May 31, 1910.

4 SHEETS-SHEET 4.

/4- all/Ila IN VEN TOR CL/ Z'W B'Y W v r ATTORNEY *WiTNESSES 4% saw NITED STATES PATENT OFFICE.

.C'LNDREVV C. CAMPBELL. OF \VATERBURY. CONNECTICUT. ASSIGNOR TC THE B. J. MANVILLE MACHINE COMPANY. 01- \VATERB UR I. CONNECTICUT. A CORPORATION OF CONNECTICUT.

.JIACHI NE FOR HEADING METAL BLANKS.

Specification of Letters Iatent.

Patented M113, 3.1. 1910.

Application filed April 28. 1909. Serial No. 492.695.

To 1. iii/mm it may cozm'rn:

lic it known that l. .\.\m:|:w (nir- HELL. a citizen t' the l nu tl States. rcsnltng at \i'atcrburv. in the count of New Haven and State of tonnccticnt. have invented a new and useful improvement in Machines for ll zuling .\lctal lilanks. (ll which the follow ng is .i spe ification.

'lhis invcntion relates to a machine tor heading or rc-hcading pieces ot metal. or blanks. which have pt'c\iou l v hccn upset. or swagctl. in another machine and pr \itlcd between their ends: with collars or up iargcd section Q The machine illustrated as embodying invention. is more part icnlarlv designed to! forming the balls on hinge pins. that is. those pin which are used or pivt'ting together hinge butts. Such pieces are of diffcrcnt sizcs and lengths. and each set com prises tno piece of llt:tltll:|ll ditt'crcnt lcngths. 'llnpinilc proper. or h nging pin. which is usually in erted into the butts fr m the top. is l'clativclv lung and has a ball shaped head at its upper end. while the tip pin. which is inserted from the bottom. is rclativcl very much shorter. and has a ball shaped head at its lower cud. The present machine is onc which is o constructed that it may he adju.--tcil to automatically feed. and form the balls on. either the long pintle pins. or the short tip pins. The section of th blank l'rom which the hall of the pintle pin is formed. is rclatiu-lv very much shorter. and (ttl| tt]lttIltl of less weight, that: the piatlc scrtion oi' the same-blank. 'hile on the other hand. the section of the blank from which the hall of the tip pin is formed. is relatively longer and of greater \\'cight. than the pintlc section oi the same blank. In this ma hine the blanks are picked up from a promiscuous nnlss in a hoppcr and allowed Io slide down a trough .shapcd track. hanging vertically hv their collars. Due to the relatively tl lll tl'ttlt weights of the sections. 'ravity causes the pintlc pin blanks to hang with the hall sections up. and causes the tip pin blanks to hang with the ball sections down. thatis, the pintlc pins and lip pins hangepposite ends up, as the pass down the track.

The object of the invention is to provide a machine of this nature. with mechanism which only permits blanks that-arc properly placed, that is, with the right ends up, to

pa down the inclined track: and whieh can be adjusted so as to take either pintlc or tip blanks. of any size and length. from the track. and carry thcm. one at a time. to the die. with the corrcct ends? for forming the alls propcrlv prcscntcd to the punch.

l ig'llt't l of the act'ompanving drawings shows a plan ot so much of a heading niachine a i nece sary to a coinprchcn ion of the present invention. Fig. 2 show a side clcvation of the same. Fig. 3 shcws, on larger scale. perspective view of the hopper. die, and mechanism which embodies: this in ention for transferring blanks from the hopper to the die. Fig. 4 shows a side view of such a pintlc pin blank and tip pin blank. as are designed to be fed into. and to be. operated upon. by the machine illustrated, and also a completed pintle pin and tip pin, such as are produced from these blanks by he operation of this machine. Fig. 5 shcws a side clcvationof the feed mechanism of this machine. adjusted for carrying pintle pin blanks: to the die. Fig. (3 shons a front \icn' of the same. Fig. T Shows a side view of thesatnc mcclmnism. adjusted to feed tip pin blanks to the die. Fig. 5 shows a perspccti\'c-\ icw of apart the iced mechanism illustrated in Fig. T. Fig. 9 shows a plan of a gate or cut-oti' which may be used in this machine for separating the lowest blank from the others in the track. and passing it to the carrier. Fig. 10 l.o\\$ a plan of a portion of the cut-oil in another position. Fig. 11 shows a similar view of the samcparts in still a ditl'crcnt position. Fig. 1:? showsa sectional elevation of the pick-l't'p mechanism illustrated in eonnection with this machine. and the comb or gate. which is provided to make certain thatonly such blank as, are right end tip will pass down the track to the cut-otl'. Fig. 1 shows a sectional view of the upper end of the hoppcr elevator and a pintlc pin Lcing carried upwardly thereby. Fig. H shows a section of the track with a pintle pin blank supported thereby. and a comb of such shape. as might be employed to prevent pintle blanks from passing down the traek the wrong end up. Fig. shows a form of gate which mightrhe provided to insure the correct feeding of blanks: having various shaped heads. The invention is applicable to either a singletit-multiple stroke heading machine of the common type, using solid or open dies.

The frame 1, of the machine illustrated, is supported upon legs 2. This frame, near one end, in suitable bearings, supports the main shaft 3, which, upon one end has the ordinary fly wheel & and between the sides of the frame has a crank 5. A. pitinan U connects the crank with a gate 7 that is movably mounted in ways arranged along the inner walls of the sides of the frame. This gate carries a punch 9 of the proper shape and construction to form the required head on the end of the blank that is held in the die. The die shown is of the open type and comprisestwo sections 10 and 11, mounted in a two plates Lt, slightly separated. is arrai'iged to project from the front of the hopper over the top of the end of the frame. Arranged to move up and down in the hoppe atthe end of the track is an elevator 15. This elevator has an inclined. grooved upper end which, when the elevator is in its highe t position. con forms to and provides an extension of the track. The elevator may be connected by a link 16 with a crank pin 'ti' on a gear 18. that; may be rotated by a pinion 19 on a shaft 20. This shaft may have a pulley 21, which may be boiled to a pulley 22 on the main shaft. By l,lll mechani-nn the ele 'ator may be raised and lowered atintcrvals. \Yhcn it is rai ed through the. promiscuous mass of blanks in the hoppcl'. some are picked up by the trough shaped upper end and carried. hanging by their collars, to the end of the track. down which they slide. The tendency of the blanks is to hang with the long or heavy curls down, and the short or light. ends up. Oc a ionally, however. blanks are improperly pi ked up, some will lie across the trough. and others will stand wrong end up, as shown in Fig. 12. To prevent the blanks which :-rc

improperly located, from sliding down tintrack, a comb '23. having an opening so shaped that. it. will only permit the passage through it of the ends of :he blanks properly located, is arranged to movc along the upper edge of the track. as hown in Figs. 3 and 15.. Thiscomb is tl($ll'-li)l mounted on a rod 24. that. is pivoted to the cud of an angle lever .25, whi h may be. connected i; v a link 2? with the elevator. 3y this. means, as the elevator rises and falls, and the h-vcr is oscillated, the comb is moved back and forth the track. and knocks back' into the hopper those blanlds which are improperly located. and only permits the passage. through it and down he track of those blanks which are properly located. A. comb of such shape as will permit the passage down the track of properly arranged pintlc pins. is shown in Fig. 14. The comb may be provided with a rotary gate 27. having Upclliiigs in its periphery of diti'crcnt con tours. as shown in Fig. 15. Such a gate may be turned to dill'ct'cnt positions. according to the hape ot' the ends of the particular blanks that are at the time being passed from the hopper into the machine.

Movable h rizontally back and forth acro-s the lower cnd of the track of the machinc .-hown. is a y k draped gate or cut-oil 21*. The ends of this cut-oil are beveled in such a way as to provide an angular or oblique groove 25 between them. \Yhcn the cut-oil is in one position. one nd extends tl'j'l'tbS the lower end of the track and prevents the blanks from sliding out. When it is moved to another po ition, the beveled pointof the other end passes lictwccn the first and second ln\\t. l' blanks. This separaics'. the fir t blank from the second and pushes the first out. holding the others back in the track. as shown in Figs. 1 It) and ll. The c'ut-oll' vshown, is mounted on a rock shaft. 30, which is supported by the hopper bracket. The lower end of this rock llilfl'1 has a rockcr arm 31, that is connected by a rod 2 with an arm :33, on the end of a shaft. 34. ()n this shaft is a lever 35 that is adaptcd to be oscillated by the cam 36 on the main shaft at the right time, to cause the cut-oll' to v eparate and pass outward the lowest.- blauk.

Mounted horizontally on top of the die cud of thc frame is a shaft 37. This shaft has an arm 33 provided with a groove 3!), which is shaped to receive and carry blanks from the track. ()n the outer end of this shaft is a wide pinion 40, meshing with which is a rack -l-l. This rack is connected by a rod 12 with a lever 13 that is oscillated by a cam II on the main shaft. This means rotates the shaft. on its longitudinal axis and turnsthe carrier a rm through an arc of substantially Uilwltgi'clfi from a vertical position. opposite the cud of the track. to a horizontal position. The shaft with the carrier arm not only has a rotation in bearings. but it. is capable of being moved longitudinally, for the purpose of moving the arrier arm transversely. s ing -15 is arranged to thrust the shaft. in one direction. Pressing against the outer end of the shalt is a rocker arm -1 on a shaft. 47, that has an arm is. which is rocltcd in one direction by a cam 42) on the main shaft. This cam at the proper time, causes-the shaft to he pushed nwardly so as In rat-r the arm tran v r ely. \\'ltll( it is in a hnrm-ntal push -tiun. from the ill ne of the trarlt tn the nlane the Shaft and the arm to its pnsitiun in the plane of the ll'iH'h'. This ntet'hanism turns the earrier arm up to the lower. or delivery end of the ll'Jt'h and holds it there while the eutntl' plat-es (me of the blanks in the arm. The arm is then turned down to a horizontal pnsitinn in the plane of the track, and afterward unwed sidewise l'.) the plane Of the die opening and beneath the lingers I end of the tint-h must be elevated slightly,

which eume down. pit-k up the hlanh train the. carrier arm. and then carry it down In the (lie npering.

them by the carrie arm.

The fingers .30 are attarhetl tn the end of .a shaft 51 that is supported by a slide T2. 20

This slide is inn'ahie up and dawn on a brat-hot 53, mounted on top (it the end of the frame. Attached to one side hf the finger slide is a blnr'k 57L engaging: which is the forked end at an angle lever .33. that pivoted tn the slide Market. This lever is eunne ted by a rud 36 with a lever 5?. that 'is osrillated l a cam .78 nn the main shaft.

Bythis means the slidm at the proper time. is dropped down Rt; that the. lingers will springonto and grasp a blank held beneath 'l'he fingers are 'aiz ed until the carrier arm is moved traits- 'ersel out of the way. and then-they are lmvered. ranring the blank down between the die set-lions, After the die grips the blank. the lingers are raised sulliriently high tu permit the rarrier arm to bring" another blank beneath them.

pinthpins tn hang in the traelc with the head ends up, fur the reas n that the pintle set-tint! 0f these .blanlts is the longer and heavier. .\s the pinthblank hangs: with the head end up. the ('ati'iet' arm brings: it down and presents the head end tn the lingers. When the ting-rs have. the head end of the blank in their grasp. they place the pintle eetinn of the blank in the die opening so as (u leave the h ad end of the blank prujerting' on! in positiun in be :u-t-al upnn by the punrh, The va e is dill'erent when .tip pin blanks are being fed into the lllltt'lllllt. fur with these blanks. as slinwn in Fig. :l, the head Htt'llt)" is long r than the pintle seetiun. (unseqm-ntly. limler'tlw intlnenee of gravity, these blanks will slide (luwn the trarlc with the pintle seetinn up. instead of the head sertiun up. a was the vase with the hm; pins. 'hen the blanks: hang this way. the rarrier arm takes them and rarrit-s them down with the head sea-tint! turned in, and the pintle seetiun prniL-ting nut toward the punt-ll just the reverse t'rmn the way the lung pins are brunght down. The,

lingers must, however, grasp the blanks by the head. :zeettar. in hath ttaseF. so as to pass the pin tle FQ 'llUH inln the die opening. and leate the head seetinn pruiewting (.mtwardly in order that it may he :Hltui upnn by the punrh. 'ln RHiIUlllllllfill this, in plaee of the rarrier arm 35. nt' sutlieient length to place the head Set-(inn nl' the lune blanks heneath the lingers. as r hnwn in his. a slightly longer earrser arm 1 is sub tituted. This longer rarrier arm brings the blanks dawn so that the h ad ends. whieh are inside, instead 0f outside. as; before, are beneath the spring fingers, as shown in Fin. i". To arenrnn'nalate tlnelurrgated rarrn'r arm. the

as indirated in Fig. T. The. spring tinge-rs then t-leseend. gra tln: blank, and are raised. but when they dam-end with the short. blanl-z held in this wa t. they l lil l he rotated 180 degrees. sn as in, as helure. earry the pintle section of the blank intu the (lie upening, and leave the head section pro je ting in pusitz m to he acted upon by the pnneh. as shnwn in Fig. T.

When lzmg' l-lanlcs are b ing fed. and the lingers are nut retptired n:- tnrn. a sr-rew tit) is set in against tit-e shaft tn prevent it from rutating. as the lide mm'es up and down, as shown in Figs. 5 and It. 'hen shut-t blanks are being fed. this set screw is removed or lonseinal. and int-ans. stir-h as a t'a rk til. is fastened to the ln; 32 an the slide braeket. so as to emlvraee the spiral Section 133 of the shaft. as huwn 'n Figs. 7 and \Yith this adjustnu-nt. when the slide is depressed fur the purpose of ralfiililfl' dawn a blank. the shaft is rntated I O degrees .sn that the tingers will present the hlanlc tn the die the ntlltl end to.

By the emplnyua-nt at this invention. blank 0F rarin' length and sizes having eulla s or enlargements nf dillerent shapes. and dillerently llhillltl with relatiun to the lengths ut the blanks. may antmnati 'all he t-ui'rvt'l y present d and aemtrately carried to the die with ither the lung or the. shor s. eetinn tn'ujeeting inward the punt-h.

The nrentinn rlaimed is:

I. In a header in manbiuatinn. a blank suppnrtiug tra lc. a -nt-ntt' murahle arrnss the tl.ll\'t end of the trarh. a rarrier inevable from a suhstantiallr hm-izuntal to a suhstantially vertiral pusitinn and virtvet's-a inward and truth the delivery end of the traelc. l(('l])t'tt(tt ing lingers. and tneehanism for marine tlnlingers to and fruit then down past the 711101.

3. in a heath-r in rumbimttimh a hlanlt supporting trat'lc. a. entadl nnn'ahle aernaesthe delivery end of the lltl'l'li. a earrier movable from a subs antially horivunttll t0 :1- zsuhstantiallv verti "al pnsitiun and ice :ersa toward and from the. delivery end of the trark, rwiprneatetw' and r iatnt') fingers, meehanism fur moving the lingers hi and from, then down past the carrier, and met-hfingers, and lll(tlsdlll$lll t'or ret-iprta-ating anism for rotating the fingers on their longitudinal axis as they reciprocate.

3. In a header in eombination. a blank supporting track, a cutil" movable across the delivery end of the track, a carri r movable from a substantially horizontal to a substantially vertical position and viee versa toward and from the delivery end of the track and also movable transversely of the plane of the track, mechanism f r moving the carrier to and from the track and also transversely, reeiproeatory fingers. and met-hanism in! mo ing the fingers to and from,

then down past the carrier.

anism for moving the carrier in a verlit'al plane to and from the delivery end of the track, mechanism for movingfthe earrier transversely of the trzn-k in a horizontal plane, fingers Ior taking blanks from the 7 carrier, mechanism for movin; the lingers longitudinally to and from, then down past the carrier, and mechanism for rotatin; the fingers on their longitudinal axis as they move longitudinally.

5. In a header in combination, a blank supporting track. a carrier mm able toward and from the delivery end of the track. a cut-off with an oblique opening movable back and forth a ross the delivery end of the track for forcing blanks, one at a time, from the track to the carrier, and rotatory and reciproeatory fingers movable. toward and from the carrier for taking blanks thereflnm.

3. in a header in combination, a blank supporting track, a clearance. gate movable adjacent to the upper edge of the traek, a cut-otl' movable across the delivery end of the" track, a carrier movable toward and from the end of the track, lingers, and meeln anism for reeiprtxating the lingers to amt from the carrier.

7. In a hen let in combination, a carrier, mechanism for oscillating the carrier, moehanism for moving the carrier transversely.

the lingers to and from the carrier.

In a header in eombination, a blank and tron] the carrier. and lil\t'll2tlll. til to! rotation the lll'Q'iiS on their longitudinal axis as they rta-iprot-ate.

In a header in eombination. a vertit-allv movable slide. mwt'hanism for ret-i iovating the slide. a shaft li'flfl'illllt vertit-allv vith the located at otnltlt of the plane of the pun 'h and die. means for cuttin; oil the blanks iron: the. lrar-k. one at a time. means for wor ying the blanks from a vertical po ition t a h rizontal po ition in the. plane of the track. mM-hanism t'or m ving said means laterally l'r-an the plane olthe tram-k to the plane ol' the punch and di and means for taking the blanks from said rarr ving mean in the plane of the punch and die and delivering the blanks to said die.

11. blank l t'etl tnerhanisn: tor a header,

havin; longitudinally movable lingers, merhand from the carrier and adapted to take a bla k from th rarrier after it has been carried lrom vt-rtn-al receiving to horizontal del vering positionand carry the blank into position to be operated upon.

A 'DREW CAMPBELL.

ll' it nesses:

ltnvuttxt-rz L. ln-nvts, Janus (lit-ruler.

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