US1689949A - Eyeleting machine - Google Patents

Eyeleting machine Download PDF

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US1689949A
US1689949A US490099A US49009921A US1689949A US 1689949 A US1689949 A US 1689949A US 490099 A US490099 A US 490099A US 49009921 A US49009921 A US 49009921A US 1689949 A US1689949 A US 1689949A
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tools
tool
head
eyelet
lever
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US490099A
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William F Lautenschlager
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D100/00—Setting or removing eyelets, buttons, lacing-hooks, or elastic gussets in shoes
    • A43D100/02—Punching and eyelet-setting machines or tools

Definitions

  • the punch-carrying head is pro- ⁇ ced with a reciprocatingcombined tubular ich and anvil7 thel punch 1n one position ot tue head operating upon a stationaryltable l or cutter block, andl after a.
  • ptnchingg,P operano by ⁇ the movement oi' the head, is posi ti oncd ⁇ over the eyelet-hcldmp; and.
  • the holder comprises a recipicating spindle, whichV concentrically rethe eyelet, ⁇ and the clincher, as a recnirocating sleeve telescoping ⁇ over the spindie is adapted to cooperate Witlrthe anvil ion ot' the punch.. ⁇
  • a recipicating spindle whichV concentrically rethe eyelet, ⁇ and the clincher, as a recnirocating sleeve telescoping ⁇ over the spindie is adapted to cooperate Witlrthe anvil ion ot' the punch.. ⁇
  • it is essential that absolute alignment registration of the opposingl cocperatingg ⁇ frts he m intained, forthe slightest disalignment will result in either injury to the punching andsettingr tools or to the eyelets.
  • the eyelets used in high, speed machines are usually ot' avery soft ductile material, ⁇ and are more susceptible to injmy-through dis- H alignment and non-registrationof the tools than the tools Which are'of hardened steel.
  • vibration Aand hearing play of theparts rendersiit mechanically imsible to effect thenecessary valignment and :tration of 4the opposing neyelet-settinpr tools, and results in, thefreouent breakingot the tools and constantrimperfect eyelet-- ting, as clenching;r the eyelet more on one side than on the. other, and not annularly uniform,
  • the opposing cooperating tools are-supported and reciprocated in avunitary frame structure in constant registration, and the tools move unitarily with their supportingr fra-Inc or carrier with any lateral or ⁇ transverse motion of the same.
  • An object et the invention is to eliminate the ⁇ shove mentioned objections of imperfect cyclist-setting. and relatively "sloiv machine operation, by providing annitary tool carry-A ⁇ infr-traine. f ⁇ This results in an increase in the lifej of the punchingr and eyelot-settingr tools and a perfect eveletsettinng and also enables the machine to be operated at a considerably ⁇ higher rate ot speed than heretofore.
  • ther objects are to simplify andimprove the adjustment of the punchingr and setting! tools ⁇ to coactino' eyelet-settiuga positions, and to simplify and improve the adjustment of thecomhined punch and anvil for its proper Contact with the punch block.
  • An additional object is" to permit the convenient and rapid removal of either or hoth, ⁇
  • Another object isy toV provide :fi/manually operated feed adjustment, enabling a rapid feed change, to give alternate short or long eyelet spacing', at the willV of the operator.
  • Another object ot the invention is the'pro- Vision ⁇ oit means whereby the eyelet holderfv is caused to move at different speeds during different portions of its cycle of movement. From its normal or start-ing,- position the eyelet holder is caused to move slowly to itsr eye@ ⁇ let engaging position in order to secure prop-V er engagement With the evelet heldvyieldingly at the end of the racevvay; then after the eyelet has been delivered the eyeletholder movesV at an increased rate of speed to the point atwhich the setting of the eyelet is to take placeV and after that hasbeen accon'iplished the eyelet holder then returns ⁇ to its initial or start-- ing position at its greatest rate ot speed.
  • Another object is to provide tor the conven- I ient attachment and removal of the eyelet reservoir andraceway for purposes of substitution, as the requirements rtor diiferent styles of eyelets'may demand.
  • Fig. ⁇ l is 4a general perspective vievvof my. improvedoutyeleter. f
  • Fig. 2 is taken approximately on line 2-2 ci Fig. 3.
  • Fig. 3 is a horizontal plan section, approximately on line 3 3 of Fig. Q1.
  • Fig. 4 is a vertical transverse section approximately online 4 4 ot Fig. Q.
  • Fig. 5 is a section on line ⁇ 1 -5 ot Fig. 3.
  • Fig. t is a fragmentary side view o't thc raceway side of the machine.
  • Fig. G is a detail section on line (Sn- 61L of Fig. 6.
  • Fig. 7 is a diagrammatic vertical section showing the manner ot' removing or replacing the upper and the lower sets of tools.
  • Fig. 8 is a diagrammatic plan section showing the, construction and operation of the feed and feed-change mechanisms for moving the tool carrier laterally.
  • Fig. 9 is a detail side elevation ot the l'eed yoke and oit the feed cam for transversely translating the tool frame placed in its initial position in relation thereto and to the punch reciprocating cam, shown in dot-and-dash lines.
  • Figs. 1() and 11 are respectively side and end elevations of the slide har 'tulcrum head, and depending pivot. integral therewith, for varying eyelet spacing.
  • Figs. 12 and 13 are respectively a detail edge elevation and plan ot the adjustable three pieced link for connecting the cam engaging feed yoke to the right end of the pivot slide har.
  • Fig. 14 is a detail plan of the pivot slide har.
  • Figs. 15 and 1G are respectively a detail plan and side View ot thc toggle link for preventing lateral movement ot the pivot slide bar.
  • Fig. 17 is a face view of the eccentric shaft and attached disk, and eccentrically mounted pin, for operating the vertically reciprocating eyeletingr tools.
  • Fig. 18 is a tace view segmental eccentric block engaged upon the eccentric crank pin.
  • Fig. 19 is a face view oit' eccentrically grooved drive disk.
  • Figs. .20 and Q1 are respectively a plan and side elevation of the vertical sha'tt for intermcdiately connecting the pivot slide har with the unitary punch, feed, set and guide frame.
  • Fig. 22 is a detail plan of the set-lever.
  • Figs. 28 and 24 are respectively a detail plan and end elevation of the right feedchange carriage bracket.
  • Figs. 25 and 26 are respectively7 a detail plan and end elevation of the le't't feed-change carriage h 'acket.
  • Fig. 27 is a face view of the upper toggle link. m i
  • Fig. 28 is a similar view ot the lower and companion forked toggle.
  • Figs. 29 and 30 are respectively a plan and side view of the separated members ot a link for connecting the. punch, release and set yoke with the toggles of Figs. 27 and 28.
  • Fif. 31 is a Yface view of the eccentric shaft bearing.
  • Figs. 33, 3-1- and 35 are diagrammatic views showing the punching. feeding and setting operations.
  • Fig. 3G is a section on line i3d-3U oi' Fig. 2l illustrating the clutch mechanism.
  • Figs. 3T and 38 are respectively Vi"1'a, pnen tary detail tace and sectional views of pulley huh construction.
  • Fig. 39 is a plan vieu' ot' a modified t'orm ot punch block used when setting eyelets in military stays.
  • Ll() is a longitudinal i-cction on line iO-t0 oi' Fig. 39.
  • Fig. All is a view similar to Fig. ill), showing the manner of guiding the stock.
  • Fig. ft2 is a detail section on line ot Fig. 1, showing the stay strip inserted in the grooved pivotcd punch hlock.
  • the easing, housing or support tor the mechanism is generally indicated at 1.
  • the main drive shaft is shown at Q. (sce Fig. 3)., is supported in elongated hearings l and 1, and extends to the right heyond the casing l, to support the drive and clutch puh ley 5, and part et the clutch mechanism. all hereinafter described in detail.
  • rl ⁇ he reciprocating punching and eyeicting tools are arranged in cooperating opposingl positions. as uppe and lower, and are re spectively mounted in relatively opposite bearings of a laterally translatable head or trame otI yoke design, to provide a work-receiving throat hetwcen the opposing nppcr and lower tools.
  • the head nnitarilj.' support s the tools :tor constantly maintaining their cw operating alignment and registration irre spective ot any lateral translation o t' the head.
  • the tools are recipro' fated by the l'ollon'- ing ⁇ mechanism, (see Figs. 9. and Il.)
  • a disk or rotor (l. having upon its inner surface a semi-circular cc centric groove 7, (see Figs. Q and 15)) the een ter 8 ot which is eccentric to the axial center 9 of the shaft 2, the center line til oi' the groove 7 passing through the axial center il of the said sha'ttv 2.
  • the shaft 15 is supported in a huh hearing cap 1G, secured to the left side of the cas-.ing 1 as a closure for the port; opening through the casing, through which the crank disks are inserted to assembling the parts in conner- ⁇ ing with therock lever 19, fulcrurned upon the cross shaft or ro ⁇ d20, supported in the bearingsl)El of the casing 1.
  • the forward end 2,1 of the lever 19, is offset laterally, (see Fig. 22), and its end forked as at 22 for the reception of, and pivotal connection with a turn buoi-:le block ⁇ 23, the said block and fork arins being traversed by "a pivot 24.
  • the block 23 is provided with an upstanding right threadedstcin 25, designed to coact with the corresponding'threads of a turn buckle adjusting nut V26, the upperportion of the nut having left threads for coaction with a correspondingly left threaded stein 2T, projecting dowm'ardly ⁇ freni aiturn buckle block 28, pivoted at 29 ⁇ to a slide nieine ber 30.
  • the slide member o0 isi-sustained in guides 31, formed at the frontand as a part of the casing,land is capable (ii-"vertical re ⁇ ciprocation therein.
  • the plates arcprovided near their upper ends anden their inner opposing edges with slots 84, these slots being concentric with the pivots and traversed by winged clamping screws 35, for holding the plates in their proper positions.
  • an anchoring plate 37 Fastened upon the upper outer edge of the plunger 30 is an anchoring plate 37, inthe forni of an angle-iron, the horizontal edge of which engages a notch ⁇ 38, of the lower toolcarrying plunger 39, the bottom of which rests upon the slide member 30;
  • the knurled nut 26 is provided on its lower circumference with teeth Ll0, Vengaged bya pawl spring Zil.
  • the tool plunger 39 is slidably held in the bore of a laterally translatable tool supporting head 51, traversed by and rigidly attached to a lower guidebar 52, capable of reciprocation in bearings 53 and 54; of the casing 1, and traversed by and slid- 'l able upon an upper stud shaft 55, rigidly heldV at 56 in the casing l, to support and guide the v upper portion of ⁇ the tool supporting-head 51.
  • the head 51 is ofyolre design, providing upper and lower opposite aligned tooll supporting and guiding arms, and for unitarily carrying the tools in the lateral translation of the head for feeding the work over a vpunchblocl; or table, for a definite eyelet spacing in the work.
  • A' bore '57 in the upper arn'i of the. ⁇ franieor head 51 slidably receives the tool plunger o7, the bores 50 and 57a being always'in vertical alignment to assure absolute alignnientl and registration forV the op .posing cooperating tools, essential to an eiii cient operation of the parts athigh speeds, and to a ⁇ perfect setting and clinching of the eyelets, without injury to the tool or eyelets.
  • the upper tool-holding plunger 57 is pro ⁇ vided with a notch() ⁇ v at its rear side, into which the edge of a guide and anchoring plate 61 projects, the plate being rigidly attached to forward arin k63 of the upper rock lever 62, having a bore 63a, traversed by an eccentric bush hearing- 6ft, which in turn is traversed by a removable shaft 65, the said vshaft being slidingly held in bearings 66 and 67 at the upper forward side of the casing 1above and rearwardly ofthe stub shaft 55.
  • the eccentric bush bearing 64 on its right end vis provided with a cranl? ⁇ arin 65:", having atlits Outer extremityla spring pressed detent pin 65", designed to engage with anyof a ⁇ series ofopenings 65, provided in a quadrant plate 68, integral with the upper toolactuating lever 62.
  • the mechanism for actuatinpr or reciprocating the upper tool-holding plunger comprises; the following parts.
  • the lever arm and tripping arm functioningT to throw the eyelet racewa)V from operative or 'feedingY position in respect to the set spindle 39 as hereinafter more full)1 described.
  • the 'forks ⁇ 73 and 75 are traversed by a pivotA pin S5, provided on its lett end with a presser toot tripping' disk S6. (see Figs. Q and il) functioning to raise the presser-toot or work clamp duringy the, forward movement ol the togrg'les TQ and 7G. the presser-toot overhanging;l a work table or punch block torv holdingl the work during' a punching); or per* torating operation.
  • the pivot pin S5 also traverses the head 87 of a stem ST. haring adjustable threaded engagement with a yoke F58.
  • the said head ST beine; placed between the arms oi" the i'orked toggle TG, the opposite arms 8S) ot the yoke S8 connecting' with the pitman as a member converting rotarv motion into reciprocating motion tor reciprocating the upper tools.
  • the said arms 89 are pirotally attached to the pitinan by a pin 96.
  • rlhe pitman 95 is mounted adjacent the disk (i 'tor horizontal reciprocative moreinent upon erooved slide blocks 9T, riegidlv held upon cross bars 9S. placed transrerselj.7 of.
  • rl ⁇ he following means are employed tor reciprocating ⁇ the tool carrying head 51. (seey Fil. 8).
  • a feed cam 110 having a hub 111 is rigidly mounted upon the main drive sha l, il. bctwcen the bearings t) and 1- and i.'-; .set upon the said shaft 2 in such angular relation to the cam 105 as will allow the cam 10:7 to cause the upper tool 5T to punch the .'-tock and to then be slightlyv ri d from the pouch blorl: lwtore the feed can) and its correlated mechanism. mores the tooluberxing head to the lett a predetermined dif-tance.
  • harina' a central sfplared portion. and havinf,r its opposite end provided with a right thread
  • the oppoeite end o 1i which is piroted to the raide bracket 137, as rt- 121?.
  • the .swingingA link bar 125 is mounted tor slidingr more ocut in a groove 1% ot a tulcruni head lil? and is held within the groove 1526 by a cap plate 12S, suitably fastened to the head by .screws 129.
  • the fulcrum head 12T in intcn'rai with a vertical pivot 130, rotatirelji held in a rertical central bearing: 131 of a cross slide bar 135 mounted for sliding motion in guido brackets 13G and 137 attached to thc outside oit the casing 1.
  • the eroe? ⁇ slide. bar ot carriage capable o1 transverse or longitudinal movement in either direction to more the tulcrum head 127.
  • the cross slide bar 135 is laterally slidable in the guide brackets 136 and r137, to change the fulcrum point of the swinging link bar 12.5.
  • the carriage 135 and its fulcrum head 127 are positioned to give the .ordinary minimum length of work feeding throw to the head 51.
  • ⁇ In order to increase thelengthof .feed for sett-ing the ⁇ eyelets. at a maximum distance apart, the carriage 135 is moved to the right to change the position-of the fulcrum block 127 and manually operated means is prov vided to move tbecarriage and to limit this movement, a descriptionofwhich follows ⁇
  • j is an arc shaped lever 161, the lower end of which is pivoted at 162 to a link ,163 and the opposite end otthis link is pivoted ⁇ at 1611 to a lug 165, cast upon the under face of the carriage 135.
  • a rod 167 To the upper outer end of the arc shaped lever 161 (see Fig. 4) is pivoted at 166, a rod 167, suitably connected with a toot treadle (not shown). The operator depresses tbe rod 167 and with it the lever 161, and, as a result, torcesthe carriage 135 tothe right, (Fig. S), lett, (Fig. 4), to a distance ⁇ determined by the adjustment of a set screw 170, mounted at the end of the ,carriage 135, and enacting with the guide bracketv 136, the can ringe being returned and maintained in its initial position by the action oi a spring 171, the terminale of: which are fastened at 17 Q,
  • the carriage is shifted by actuation of the -lever 161 and when a short spacing is again desired the lever 161 and carriage is released, whereupon the s rinof 171 automa-ticall f returns the carria el head 127 tothe initial carrying head can therefore be varied at the i will of the operator, while the machine is in motion, within predetermined limits permit- I ted by a maximum movement of the carriage 135, for which the carriage was set by the stops 170, 1741.
  • the parts are designed for a constant minimum distance of head feed reciprocation, for moving the tools to an appropriate position over the table or cutter block, which, in this instance, is ,station ⁇ ary for a work perforating operation, and to :inappropriate position clearing the table, a cutter block for ⁇ un eyelet inserting and clinching operation.. If the cutter block was movable, the minimum head movement would not be required.
  • the minimum punch lblock clearing movement may be said to measure one quarter of an inch.
  • the operator therer fore can at random change the reciprocating stroke of the head correspondingto thedegrec he moves the carriage 135, so that the head can have areciprocating stroke of its minimum onequarter inch toV any degree up to its maximum two inches.
  • the maximum for manual treadle control is fixed by the ⁇ degreeof stop adjustment of the stop screw carriage appropriately for a one inch stroke of the head, vwhileits minimum stroke remainsv constant.
  • the adjustment ot the' stop screw 1741 is primarily for bringing the to the parts connected to its tree end.
  • the tulcrum tor the link 125 when moved toward the end of the lever connecting yoke 120, ot the connecting rod, increases the are o t movement at the opposite end o? the link, increasing the head stroke and conversely when thel fulcrum is adjusted in an opposite direction.
  • the cam throw and pitn'ian stroke is constant and the head stroke variable.
  • rl ⁇ his is ot' considerable advantage when applying the eyelets upon shoe uppers, as it enables the operator to change the eyelet spacing while the machine is operating at high or Jfull speed, it being desirable to change the eyelet spacing at curved portions 'tr m the spacing toward the upper end of the upper or lower end.
  • the work is supported upon a table comprising an attaching base 181 (Figs. 1 and 2) provided with a lng 182 upon its under tace, the same resting within a corresponding groove 183, formed in a projection 1811, aty the front right side ot the easing 1 and held therein by a headed screw 185.
  • the base 181 is formed with a projection 186 extending up- 'ardly and horizontally z lross the easing 1, between the upper and lower tools ot the head, and is supported at its outer end upon a shoulder 18T at the opposite side ot' the casing 1.
  • a horizontal work rest or table 188 Extending forwardly from and torming a part ot' the projection 184 is a horizontal work rest or table 188, having a slot 189 formed lengthwise there across, this slot being so positioned in respect to the upper and lower tools as to permit them to centrally trziivfnse the slot', during the work feeding and eyeletsetting operation.
  • the slot 189 is of sutlicient length to allow the tools to traverse the saine at the maximum stroke of the tool carrying head 51.
  • the punch block 190 is counter-.sunk within the work rest, 188 and positioned beneath the punch and 4set.
  • a slotted gage 198 is adjustably tastened by a screw 1911 to the upper surtace ot the work rest 188 rearwardly of the tool 57, and provides a notch 105 at its forward end, into which the edge of the stock is inserted to guide the same.
  • a presser foot 200 ot U- shaped formation surrounds the slot 180, and contacts the work rest 188, or the upper surface of the stock when the machine is in operation.
  • The. U-shaped presser toot 200 is open at its right, and at its back is provided with a rearwardly extending lever arm (Fig. 2)
  • a spring 201 is attached at 205 to the lever arm 201, forwardly of its tulcrum 202, and at 20G to the casing 1, the action ot this spring being to hold the presser 'toot upon the stock.
  • the. presser toot is shown in the position it would occupy when the stock is heneath it, although thev stock has been omitted for clearness ot illustration.
  • t rod 207 traverses the coils ot the spring 20-t and ahuts the spring attachment screw 205, extends downwardly there troni to a lever treadle (not shown) and functions to raise the presser foot for insertion or removal ot the stock.
  • the tripping disk 80 coacting with the end ot the lever arm 201, raises the presser foot to allow the feeding of the stock and immediately before the setting operation, the disk 80 reeedes to allow the presser toot to engage the stock during the setting operation.
  • the disk 80 reeedes to allow the presser toot to engage the stock during the setting operation.
  • 11n eyelet raceway plate is generally indicated at 300; (see Figs. 1, 2, l, (l and 0") and rests slidably upon an incline shelf 801, which is fastened as at 302 to the right vertical outer tace ot the easing 1, and slants upwardly and rearwardly and projects beyond and above the level ot the top of the casing 1.
  • the under surtace ot the raceway plate 300 slidably resta upon the upper surface of the inclined shell' 801, allowing the said raceway plate to be swung late ally toward the right, to prevent the engagement ot eyelets by the set spindle, all to be more fully described hereafter.
  • a ca sing 304 having provided therein, horizontal hearings 305, and a vertical hearing 80G.
  • a rotatable drive shaft 80T having a drivipulley 308 rigidly fastened thereto and :uljacent to the pulley 808 is mounted a second 'idler pulley 809, the pulley 308 being belted to the power shatt (not shown).
  • a worm gear 310 is attached to a shaft 812, rotatable within the bearing 300.
  • the sha'tt. 312 has toi-uuid upon it a peripheral retaining flange 313, resting! in a socket 81.4-, ot' the casing :l0-l. and the upper end ot' the shatt is also provided with a relatively shallow cylindrical bore ft. diametrieally traversed by a pin 816, the 'function ot which is to engage the lin-:er slotted end 317 of av brush spindle 318, havyengagenient with the drive :neen
  • a broad headed screw 329 by threaded engaeeruent with the upper end et' the brush,
  • Brushes 330 are provided at the periphery of. the brush-hub an d function to carry the eyelets to openings (not shown)- at the right of an eyelet receiving surrounding the brush-hub and into which the eyelets are introduced through an opening at the top, the opening being closed by a. hinged lid 232. As best shown in Fifi..
  • the eyelets are delivered from the right side of the reservoir into the raeeway 233, down which they are guided to the delivery poi nt, the lowermosteyelet, when the raeeway is; s i for delivering eyelets, being in a position to be engaged by the set spindle, the. 1d lowern'iost eyelet being yieldingly held leaving the raeeway, by a spring actN eyelet ⁇ retaining nger 2345, placed adjacent- ⁇ the delivery end of the said raceivay.
  • the raeeway plate 300 at its inner nxid portion, is housed within a groove 235, formed as a part of the easing 1, (see Figs. il., 6 and 6), and means is provided upon the lower side ot' the raceway plate for adjustingy the delivery end of the raceway for the proper positioning of the lowerniost eyelet therein, above and in'vertical alignment with the setspindle.
  • This means comprises a.
  • a spring attached at its lower end to-the easing l and with its upper terminal engaging a notch in the outer edge of the raceway plate, forces and holds the end of the set screw 240 against -the casing, allowing yielding lateral motion ot' the raceway.
  • a handle 243 attached to the upper end of the spring 242, is provided ior disengaging the spring to allow the removal or lateral swinging ot the raceway plate wheny desired.
  • the shaft 77 rotatively'inountedin bearings and 79 et the casing l and projecting beyond the casing at both. sides,is provided, as before. stated, with an adjustable lever arm ⁇ 80, having an opening S0a at its. outer extremity -tor engagement with a hook 80", forming part of a short chain 80C,- the end of which is tastened to the pivot 166 of theare shaped lever 161.
  • the opposite end oit' the shaft 77 has the raceivay tripping arm S1 rigidly attacheel ⁇ thereto, which arm extends upwardly and.
  • trippine arin 81 is tui-ther provided with a projection 81C to the outer endl of which is slidably fastened the upper end of a link 21h, the lower end of which is pivoted toa stub pin 21, projecting from and fastened to the right side oi the arni 21 ot' the ⁇ Se lever 19.
  • the upper end of the link 21b is slotted as a 21d and the slot ie traversed by a headed screw 2P, the bottoni ot the screw shank contacting the lower end of the said slot 2li-the said lower end or' the slot being held yagainst the Screw by a spring 21f attached to the screw 21e and to the link 2lb, the said link 21b cting to raise the tripplng ariu 81 to throw the raceway to the right immediately after the set spindle has engaged an eyelet and for 4the purpose ol' releasing the eyelet from the raceway against the action of eyelet retaining finger 234.
  • the portion ot' thev slot 214 extending above tie acre-w 21R allows independent upward nioveineut of the raceway tripping :.i'rin S1 against the action et the spring 21f, Whenit is desiredto temporarily interrupt the feeding oil eyelets for any reason whatever', and this independent displacement of the raceway lill Si il is accomplished by inserting the hook Sil into the opening of the lever arm Si), when, by depressing the arc shaped lever lill by meansv of the rod 167, the lateral displacement et the racewayv is obtained, Yfor the non-deliver)Y oit eyelets.
  • the initial position ot the n'ieclianism for performing the abovementioned operi-.tions is shown in Fig. 2, wherein the upper toolholder 57 is at its upmost limit and the lover tool holder 39 at its lowermost position.
  • the main drive sha'i't Z in the direction ot the arrow through an arc approimately two operations are simultaneously performed, (see Figs. 2, 82 and 33).
  • the cani 105 coaeting with the pitnian 95, throws the pitman forwardly to torce the toggles 72 and 7G, also forwardly.
  • rlhe punch in its descent punching through the material on the punch block, has its descent regulated for coming to a stop when the punch engages the punch block, thus causing ⁇ complete punching without injury to the punch or punch block.
  • the disk and segmental eccentric block l1 sliding in its groove T, and connected by the eccentric pin lf3, of the disk lei., to the set lever link 19, operates to raise the outer forward end 21, ot the lever 1f), tor operating the lower tools, to move the lower plunpi till and tool holder 3f) resting thereon upuardlj,r i'or threading the eyelet teediiig and guiding spindle through an evelct at the end ot the racc-way, and positioning the eyelet l'or driving the same through the perforation in the work, and subsequent clinching.
  • the eyelet :Feeding and centering spindle is yieldingly sust ained in the holder.
  • the eccentric action oi the disk (l and its related parts causes a relativelyY slow movement ol. the pin 13 during the iin-:t quarter revolution of the said dish, wi th a correspondiugly slow upward movement ot the lower tool holder 39 to eyelet engaging position. thus insuring the proper tool engagement with said eyelet.
  • the upward speed of the tool holder gradually increases and immediately after the. setting operation, the downward .speed of the holder is e-itrenielyv rapid, thus a voidinpr the possibilit)v of collision with the work roest or with the eyelot raceway. since the tool head 5l moves direetlvv after the said settingT operation.
  • the drive and clutch pulley 5 is .shown loosely and rotativelv mounted upon a (,-ylindrical hub member lill). rigidly attached to the shalt Q hv a pin ⁇ lill. rlhe bore 1.102. o'fi the clutch and drive puller 5, has l'ormed upon its inner sur'lace and at the outer edges of the. same, ⁇ shalhiw segmental depre nis - ⁇ 103, their inner surfaces being depressed in respect. to the bore 409. and the endsl of the depressions form stop shoulders t0-l for coaction with pulleyY brake means mounted within the hub member 100.
  • the hub member is provided rneeeee with a transverse horizontal bore 405. adjacent its periphery, into which is rotatively placed a shaft 406, having eccentric cylindrical projections 407 at each of its ⁇ ends, upon which are rotatively mounted brake collars 408, desi'ned to coact with the shallow depressions 403 and shoulders .404, of the bore 402, of the pulley 5, to positively clutch the saine when forced outwardly thereagainst.
  • Fastened to the hub men'iber 400 at its inner face is a dished circular' brake housing 10, open at one side and attached at its closed side to the hub member. 400, as at 411, and is provided with a brake flange 4112L fer engagen'ient by brake shoes, hereinafter described.
  • a lever 412 is adjustably fastened to the inner eccentric projection 407, and at its lower end is provided with .an outwardly projecting stoproller 413.
  • a spring 414 is connected to the lower end of the lever 412 and to ⁇ the housing 410 and acts through the medium of the lever 412, shaft 406 and eccentrics407 to force the brake Collars 408 into engagement with the depressions 403, and subsequently with the shoulders 404 to positively Connect the pulley with the hub 400.
  • the brake collars are disengaged from. the inner. surface of the pulley bore, the springV 414 is under tension, and this position of the clutch parts corresnonds to the initial position of the mechanism of the eyelet machine, as shown in Fig. 2. ln this position, the roller 413 is engaged with a stop arm 416, depending from a laterally slidable collar ⁇ 417 mounted upon the shaft 2. provided with a peripheral groove 418, and with ahubprojection 419, having upon its right a peripheral involute cani 420,
  • the leverv 430 is adjustably clamped upon a bushing 43l,.this bushing being mounted loosely upon the shaft 98 and having a brake shoe arm 432 at its outer end.
  • the lever 4301 projects rearwardly, downwardly, and in alignment with and beneath the rolle-r 413, and is designed to be engaged with and depressed by the said roller in its rotative movement and before its engagement with theV stop. arm ⁇ 416, ⁇ to force the brake shoe 432a attached to 'the brake shoe arm 432 into lengagement with the brake flange 411e.
  • stopV lever 435 Mounted loosely between the lever 430 and brake shoe arm 432, is a stopV lever 435, the lower end 436 of which engages the roller 413, to prevent its disengagement from the stop arm 4116.
  • the roller depresses this stop lever 435 against the actionof a spring 437, fastened at 437a-437 respectively to the brake lever 430 and tothe saidV stop lever.
  • the brake actua-ting lever 431V is mounted loosely near the-end of and upon the rearwardmost shaft 98 and extends vertically downward. its front-face 440 engaging the V'end 422b of the shaft 422 by which. itis forced outwardly ⁇ to bring the brake band 445j ⁇ into engagement with Vthe brake flange 411@ when the rolle-r 41.3,strikes the projection 4.16 to positively prevent further rotation of the shaft 2.
  • a pin ⁇ 441 projects laterf ally from the lever 431A and contacts a.
  • compression spring 442 adjust-ably mounted as at 443 in ai lower depending arm 444 of the brake shoe lever445, the said brake shoe lever being loosely mounted for oscillation ⁇ onthe shaft 98, adjacent the outer face oft-helever 431.
  • a horizontal arm 446 projects rearwardly from the brake shoe lever 445 and at its outer end is provided with an upwardly extending adjustable set screw 447.
  • the head 448 of which is designed for engagement with and depression by-an arm 450, adjustl ably clamped at its hub end to the end of a rotatable shaft 451, parallel with and above the shaft 422, and held ⁇ in a. bearing 453, of the casing 1.
  • the shaft 451 is adjustably clamped .depending tripping arm 454, provided at its lower end with a. pin- 455, engaging the groove 418'of the collar417.
  • the collar 417 is forced to the. left to disengage the stopY arm 416 from its engagement with the roller 413, to allow the brake collars 408 to engage the hubV de'- pressionof the constantly rotating pulley 5, to set the eyelet machine in operation.
  • the arm 4501 is depressed by the operator through nie-ans of a tre-edle', (not shown), connected to chain 460, the upper end of which has a hook. connection 461, with lthe outer end of the lever 450.
  • the brake actuating leversv430 and 431 are, in rapid succession caused to bring theirrespective brake shoes into contact with the brake fla-nge 411, the lever 430 being irst actuated by the roller 413 as it approaches tor engagement with the arm 416, and the lever 431 being thereafter immediately actuated as a result of the collision of the roller 413 with the arm 416, the rearward motion ot the said arm being communicated to the shaft 422 and from it to the lever 431.
  • counter stop 457 is attached within the groove 418 in substantially diametrical relation to the Stop ariii 416. and abuts the end of the shaft 451, its Yfunction beiner to prevent counter-rotation ot collar 41T, after the stop arm 416 has been engaged by the roller 413, and when the shaft 422 is retracted by the spring 425.
  • An arm 465 projecting vertically trom the hub ot the arm 450. is provided with a. spring 466, attached at 46T to its upper end, and at 468 to the easing 1, the function of the said spring and arm being to automatically return the projection 416 to a position for engagenicnt with the roller 413 when desired.
  • the roller 413 is released from contact with the stop arm and moves inwardly under the action of the spring 414, its inner fiat face contacts the outer tace ot the arm 416, and slides tliereagainst, its further inner movement being prevented by the ed ge ot a circular washer 41.9", equal in diameter to the diameter oi the hub projection 410; these. contacts are maintained until the Forward peripheral edge ot the roller passes the rear vertical edge of the arm 416. ⁇ at which time the collar 417 and attached involute cani 420 are thrown to the right by the action ot the spring 466, to briner the cani into a position for engagement by the roller 413, to force the same outwardly, to release. the brake collars 408. This release takes place before the shaft 2, and correlated mechanism reaches its initial position, the momentum et the machine completing the initial setting of the said mechanism.
  • Figs. 39 to 42 inclusive I have illustrated a torin of' punch block tor use in stock, upon which is sewed a military stay7 strip.
  • Much difficulty is experienced in setting eyelets in these strips, inasmuch as the right or fair si de of the upper, faces downwardly, and consequently provides no means whereby the. worker can locate the point of insertion ot the eyelet with sufficient accuracy.
  • I overcome the above difficulty by providing a circular punch block 500, provided upon its upper face with a groove 501, the width of which is sutlieieiit to allow an easy sliding movement of the stay tlierewitliin.
  • the punch block is provided with a depending pivotstud 502, which traverses the work table, to allow a rotative movement ot the attached block.
  • a broad-headed screw 5053 is threaded into the lower end ot the stud the head ot the saine engaging ⁇ the under side of the work table, to prevent withdrawal or displacement o the block, but to allow its t'ree rotative movement coiii'ioriiiably to the requirements, as determined by the curvature ot' the sta-y strip :305, scwed to the up per 506.
  • the stay7 is inserted and guided in the groove .301, of the pivoted punch block.
  • the above described construction provides a means for accurately and automatically guiding the stay to successive eyelet-setting positions.
  • a tool carrying frame a combined punching and setting tool, a setting tool opposing said first named tool, each mounted tor reciprocation in said guide trame, the central axes of the said tools being in tixed alignment, means l'or reciprocating said tools at ditfcrent speeds, and means for feeding said traine.
  • an eyelet machine a tool carrying traine, a combined stock-punching and eyeletsetting tool, an eyelet setting-tool opposing said lii'st. named tool, each mounted tor reciprocation within said guide frame, thc cciitral axes ot" said tools being in iixed alignment, means for causingl lateral reciprocatioii o1 said frame. and means for operating said tools at dill'erent speeds for a stocli punching and an eyclet setting operation.
  • a tool carrying traum a combined stock-punching and eyeletsetting tool, an eyelet settingtool opposing said tirst named tool, each mounted l'or rc ciprocatioii in said frame.
  • the central axes ot said tools being in lixed alignim-nt. means tor varying the. iteed throw ot the said frame, and means for operating said tools at ditlerent speeds to punch the stock and set an eye let within the punched opening.
  • a tool cariying frame capable of lateral i'cciprocatory motion, a combined stocli-pi1iicliiiig and elveleisetting tool, an eyelet setting-tool opposinff said tirst named tool, each tool iiiounted tor rcciprocatory motion within said trame. thi.4 central axes ot said tools mecanic.r in lixed alignment, means il'or operating said tools at ditferent speeds for stock-punching and eyeletsetting operations. and means for varying the lengt-li ot the reciprocatory motion ol said unitary punch, feed, set and guide traine.
  • a tool head two opposit'ely disposed coo1iierating tools mounted in positive alignment.
  • means for reciprocating said head means ior actuating one of said tools to en-l gage. the work and llecd it when said head is recipiocatcd. and means for actuating the other ot said tools to present a fastener to the work fed by the other tool.
  • a tool head In av machine for inserting fasteners. a tool head, two oppositely disposed cooperating tools mounted and movable in positie.:
  • a tool head in positive alignment in said head, means for actuating one of said tools to engage the work and vfeed the same when said head is reciprocated, means for actuating the other of said tools to present a fastener tothe work so fed, means for reciprocating said head, and means for varying the length of said reciprocating movement.
  • a tool carrying head having relatively opposite bearings and an intermediate work receiving throat,opposing co-operatingtools respectively supported and reciprocable in said bearings, means for reciprocating ⁇ said tools at different speeds one from the other, and means for supporting and guiding said head for sliding reciprocating movement in a Work feeding direction.
  • the upper tool comprising a combined concentric punch and anvil
  • the lower tool comprising a yieldingly sustained spindle and a. clincher concentric therewith, a head unitarily carrying said tools and supporting them in positive alignment ⁇ and registration, a raceway for fasteners, the punch ofthe upper tool.
  • two co-operative constantly aligned setting tools means to move said tools unitarily ⁇ laterally and to cause one to engage work for advancing the same, the other to transfer a fastener from a: raceway with the work advancing movement and both to cooperate in attaching the fastener to the work, and a raceway for supplying fasteners.
  • means for moving a tool holding frame for supporting opposing tools in cooperative alignment laterally means to reciprocate oppesing cooperative tools in said frame, a work supporting table interposed between said tools having a punch block and a tool receiving aperture, one of said tools cooperating with sai-d punch block for punching an vaperture in work for the reception of a fastener and for toolfengageinent with the work to feed the same during the lateral movement of said frame, the second tool being ⁇ adapted to transfer' a fastener' from a race-way with the work feeding movement, and the tools cooperating through the table aperture in attaching the fastener tothe work, and race-way for supplying fasteners.
  • a tool carrying frame having opposing aligned Vtool supporting bearings and a workreceiving throat therebetween, said frame being movable transversely to the working strokes of the tools, reciprocable cooperating tools respectively supported in the bearings of said frame, means for actuating one of said tools to feed the work and the other to sresent a fastener to the work, means for transversely reciprocating said frame, and means for varying the reciprocating stroke of said frame.

Landscapes

  • Press Drives And Press Lines (AREA)

Description

v w. F. LAUTENSCHLAGER EYELETING MACHINE original Filed Aug. 5. 1921 9 Sheets-Sheet 1 Glvhwao am; i Ma.
G Helene-1f oct. 3 0, 192s. 1,689,949
W. F. LAUTENSCHLAGER EYELETING MACHINE origina Filed Aug; 5. 1921 '9 Sheets-Sheet 2 Munn? 6 @44M w 4 ,"/vo y a anymail oct 3o, 1929. 1,689,949
W. F. LAUTENSCHLAGER EYELETING MACHINE Original Filed Aug. 5, 1921 9 Sheets-Sheet 3 u I La g mf f .q dummy Oct. 30, 1928.
W. F. LAUTENSCH LAGER E-YELETING MACHINE Original Fliled Aug. 5. 1921 9 Sheets-Sheet 4 5 wuentoz.'
w. F. LAUTENSCHLAGER EYELETING MACHINE orig-manned Aug. 5. 1921 9 sheets-sheet 5 wnafwf v Z. j l I g ,MQW/144 w. F. LAUTENscHLAGER Oct. 30, 1928*.
EYELETING MACHINE Original Filed Aug. 5, 1921 9 Sheets-Sheet 6 Oct. 30, 1928.
W. F. LAUTENSCHLAGER EYELETING MACHINE Original Filed Aug. 5. 1921 9 Sheets-Sheet 7 Am lnl 3 vwcntoz.'
atto/muy w. F. LAUTENscHLAGr-:R i
EYELETI NG MACH INE original Filed Aug. s. 1921v 9 sheets-shew 8 3 noauto@ G t rox uw W. F, LAUTENSCHLAGER Oct. 30, 1928 EYELETING MACHINE Original Filed Aug. 5. 1921 9 Sheets-Sheet 9 Patented Oct. 30, 1928.
UNITED 4srirrlaslPATENT o Insane l-iFlcIs,4
WILLIAM r. LAUTENSCHLAGER; or CINCNNATI, orne, AssIGNoR To Lon-ENZ MUTHER,
` or NEWzroN. MASSACHUSETTS...
EYELETING ivrecnnn.`
\ most universally beenarrangred with a punehcarrying; head movable from a stock punch-` inn' position to an eyelet inserting,r and setting p( iti0n, for cooperating with relatively stationarv eveletdioldingf vand clinching mech,
sin. The punch-carrying head is pro-` ced with a reciprocatingcombined tubular ich and anvil7 thel punch 1n one position ot tue head operating upon a stationaryltable l or cutter block, andl after a. ptnchingg,P operano, by `the movement oi' the head, is posi ti oncd `over the eyelet-hcldmp; and. clinching 1 invchanisni..y The holder comprises a recipicating spindle, whichV concentrically rethe eyelet,` and the clincher, as a recnirocating sleeve telescoping` over the spindie is adapted to cooperate Witlrthe anvil ion ot' the punch..` For an eiiiicient opera- ;fi ret the machine and perfect eyelet-setnog, it is essential that absolute alignment registration of the opposingl cocperatingg` frts he m intained, forthe slightest disalignment will result in either injury to the punching andsettingr tools or to the eyelets. The eyelets used in high, speed machines are usually ot' avery soft ductile material,` and are more susceptible to injmy-through dis- H alignment and non-registrationof the tools than the tools Which are'of hardened steel. in higgh `speed machinesnhaving the Working parts` as mentioned, vibration Aand hearing play of theparts rendersiit mechanically imsible to effect thenecessary valignment and :tration of 4the opposing neyelet-settinpr tools, and results in, thefreouent breakingot the tools and constantrimperfect eyelet-- ting, as clenching;r the eyelet more on one side than on the. other, and not annularly uniform,
and when the eyeletsare enamel inishechas geneally used in shoe uppers, thev enamel coating is marred and chipped. j
`,ln the present invention, the opposing cooperating tools are-supported and reciprocated in avunitary frame structure in constant registration, and the tools move unitarily with their supportingr fra-Inc or carrier with any lateral or `transverse motion of the same.
, 4fed for a` The carrier is translated from a punching y position to a predetermined eyelet spacing distance vfor a Work` feeding operation. andto move the toolrbelvond a stationary cutting table or bloeit. 1 1 An object et the invention is to eliminate the `shove mentioned objections of imperfect cyclist-setting. and relatively "sloiv machine operation, by providing annitary tool carry-A` infr-traine. f `This results in an increase in the lifej of the punchingr and eyelot-settingr tools and a perfect eveletsettinng and also enables the machine to be operated at a considerably` higher rate ot speed than heretofore.
ther objects are to simplify andimprove the adjustment of the punchingr and setting! tools` to coactino' eyelet-settiuga positions, and to simplify and improve the adjustment of thecomhined punch and anvil for its proper Contact with the punch block. 1 I An additional object is" to permit the convenient and rapid removal of either or hoth,`
combined-punch and anvih and eyelet holder` and clinchcr for purposes of substituting other typesof the same, or for any` other purposes Whatever. Another object isy toV provide :fi/manually operated feed adjustment, enabling a rapid feed change, to give alternate short or long eyelet spacing', at the willV of the operator.
Another object ot the invention is the'pro- Vision `oit means whereby the eyelet holderfv is caused to move at different speeds during different portions of its cycle of movement. From its normal or start-ing,- position the eyelet holder is caused to move slowly to itsr eye@` let engaging position in order to secure prop-V er engagement With the evelet heldvyieldingly at the end of the racevvay; then after the eyelet has been delivered the eyeletholder movesV at an increased rate of speed to the point atwhich the setting of the eyelet is to take placeV and after that hasbeen accon'iplished the eyelet holder then returns `to its initial or start-- ing position at its greatest rate ot speed.
Another object is to provide tor the conven- I ient attachment and removal of the eyelet reservoir andraceway for purposes of substitution, as the requirements rtor diiferent styles of eyelets'may demand. Fig. `l is 4a general perspective vievvof my. improved rapideyeleter. f
Fig. 2 is taken approximately on line 2-2 ci Fig. 3.
a vertical longitudinal section" Fig. 3 is a horizontal plan section, approximately on line 3 3 of Fig. Q1.
Fig. 4 is a vertical transverse section approximately online 4 4 ot Fig. Q.
Fig. 5 is a section on line {1 -5 ot Fig. 3.
Fig. t is a fragmentary side view o't thc raceway side of the machine.
Fig. G is a detail section on line (Sn- 61L of Fig. 6.
Fig. 7 is a diagrammatic vertical section showing the manner ot' removing or replacing the upper and the lower sets of tools.
Fig. 8 is a diagrammatic plan section showing the, construction and operation of the feed and feed-change mechanisms for moving the tool carrier laterally.
Fig. 9 is a detail side elevation ot the l'eed yoke and oit the feed cam for transversely translating the tool frame placed in its initial position in relation thereto and to the punch reciprocating cam, shown in dot-and-dash lines.
Figs. 1() and 11 are respectively side and end elevations of the slide har 'tulcrum head, and depending pivot. integral therewith, for varying eyelet spacing.
Figs. 12 and 13 are respectively a detail edge elevation and plan ot the adjustable three pieced link for connecting the cam engaging feed yoke to the right end of the pivot slide har.
Fig. 14: is a detail plan of the pivot slide har.
Figs. 15 and 1G are respectively a detail plan and side View ot thc toggle link for preventing lateral movement ot the pivot slide bar.
Fig. 17 is a face view of the eccentric shaft and attached disk, and eccentrically mounted pin, for operating the vertically reciprocating eyeletingr tools.
Fig. 18 is a tace view segmental eccentric block engaged upon the eccentric crank pin.
Fig. 19 is a face view oit' eccentrically grooved drive disk.
Figs. .20 and Q1 are respectively a plan and side elevation of the vertical sha'tt for intermcdiately connecting the pivot slide har with the unitary punch, feed, set and guide frame.
Fig. 22 is a detail plan of the set-lever.
Figs. 28 and 24 are respectively a detail plan and end elevation of the right feedchange carriage bracket.
Figs. 25 and 26 are respectively7 a detail plan and end elevation of the le't't feed-change carriage h 'acket.
Fig. 27 is a face view of the upper toggle link. m i
Fig. 28 is a similar view ot the lower and companion forked toggle.
Figs. 29 and 30 are respectively a plan and side view of the separated members ot a link for connecting the. punch, release and set yoke with the toggles of Figs. 27 and 28.
Fif. 31 is a Yface view of the eccentric shaft bearing.
Figs. 33, 3-1- and 35 are diagrammatic views showing the punching. feeding and setting operations.
Fig. 3G is a section on line i3d-3U oi' Fig. 2l illustrating the clutch mechanism.
Figs. 3T and 38 are respectively Vi"1'a, pnen tary detail tace and sectional views of pulley huh construction.
Fig. 39 is a plan vieu' ot' a modified t'orm ot punch block used when setting eyelets in military stays.
Ll() is a longitudinal i-cction on line iO-t0 oi' Fig. 39.
Fig. All is a view similar to Fig. ill), showing the manner of guiding the stock.
Fig. ft2 is a detail section on line ot Fig. 1, showing the stay strip inserted in the grooved pivotcd punch hlock.
In the drawings, the easing, housing or support tor the mechanism is generally indicated at 1. The main drive shaft is shown at Q. (sce Fig. 3)., is supported in elongated hearings l and 1, and extends to the right heyond the casing l, to support the drive and clutch puh ley 5, and part et the clutch mechanism. all hereinafter described in detail.
rl`he reciprocating punching and eyeicting tools are arranged in cooperating opposingl positions. as uppe and lower, and are re spectively mounted in relatively opposite bearings of a laterally translatable head or trame otI yoke design, to provide a work-receiving throat hetwcen the opposing nppcr and lower tools. The head nnitarilj.' support s the tools :tor constantly maintaining their cw operating alignment and registration irre spective ot any lateral translation o t' the head.
The tools are recipro' fated by the l'ollon'- ing` mechanism, (see Figs. 9. and Il.)
Mounted upon the main drive .shalt at its inner extremity, is a disk or rotor (l. having upon its inner surface a semi-circular cc centric groove 7, (see Figs. Q and 15)) the een ter 8 ot which is eccentric to the axial center 9 of the shaft 2, the center line til oi' the groove 7 passing through the axial center il of the said sha'ttv 2. A segn'iental or :ecmiwii cular eccentric block 1l slidingly 1n-@initrd within the eccentric groove T ol' the olor and the said block has an opening l2.r (scc Fig. 18), near one ot its extremitie through which a pin 13 extends. This pin is eccentrically carried by a disk 14, mounted upon a shaft 15, the axial center ol which is in vertical alignment with the axial center ot' th'.I shaft 2, but horizontally helon' and ecceiztr'nto that shatt.
The shaft 15 is supported in a huh hearing cap 1G, secured to the left side of the cas-.ing 1 as a closure for the port; opening through the casing, through which the crank disks are inserted to assembling the parts in conner- `ing with therock lever 19, fulcrurned upon the cross shaft or ro`d20, supported in the bearingsl)El of the casing 1.
The forward end 2,1 of the lever 19, is offset laterally, (see Fig. 22), and its end forked as at 22 for the reception of, and pivotal connection with a turn buoi-:le block `23, the said block and fork arins being traversed by "a pivot 24. The block 23 is provided with an upstanding right threadedstcin 25, designed to coact with the corresponding'threads of a turn buckle adjusting nut V26, the upperportion of the nut having left threads for coaction with a correspondingly left threaded stein 2T, projecting dowm'ardly` freni aiturn buckle block 28, pivoted at 29 `to a slide nieine ber 30. The slide member o0 isi-sustained in guides 31, formed at the frontand as a part of the casing,land is capable (ii-"vertical re` ciprocation therein. Gib plates 32, pivoted at 33 to the guides 31, holdthe plunger 30 in position withinthe guide-way- The plates arcprovided near their upper ends anden their inner opposing edges with slots 84, these slots being concentric with the pivots and traversed by winged clamping screws 35, for holding the plates in their proper positions. Fastened upon the upper outer edge of the plunger 30 is an anchoring plate 37, inthe forni of an angle-iron, the horizontal edge of which engages a notch `38, of the lower toolcarrying plunger 39, the bottom of which rests upon the slide member 30; The knurled nut 26 is provided on its lower circumference with teeth Ll0, Vengaged bya pawl spring Zil.,
`to hold the nut inits adjusted position.
When it -is-desired to Araise or lower the plunger toadjust the-tool plunger thereupon, the lnurled nut 26 isrotated, rnd by its turnbuclrle action*inicroinetrically Vadjusts the slide member and its connecting parts, either upward ordownward, as may be required.
LThen it becomes necessary to remove the tool carrying plunger, the winged clamping screws are loosened' and the plates 32 swung outwardly and downwardly about their pivots 33, to a horizontal position, to
bring their lower edges in vertical alignment and flush with the inner vertical' faces of the guides 31, releasingthe slide ineinber 30, for permitting the lower end thereof to be pressed slightly outwardly by the action of the'spring 41 and disengaged from the guides 31, and adapting thenieinber to be swung downwardly about the pivots 2d and29, to a position shown in Fig. 7, disengaging the anchoring plate 37 from the notch 38 of the she tool plunger 39. The tool plunger 39 is slidably held in the bore of a laterally translatable tool supporting head 51, traversed by and rigidly attached to a lower guidebar 52, capable of reciprocation in bearings 53 and 54; of the casing 1, and traversed by and slid- 'l able upon an upper stud shaft 55, rigidly heldV at 56 in the casing l, to support and guide the v upper portion of `the tool supporting-head 51.
The head 51 is ofyolre design, providing upper and lower opposite aligned tooll supporting and guiding arms, and for unitarily carrying the tools in the lateral translation of the head for feeding the work over a vpunchblocl; or table, for a definite eyelet spacing in the work. A' bore '57 in the upper arn'i of the.` franieor head 51 slidably receives the tool plunger o7, the bores 50 and 57a being always'in vertical alignment to assure absolute alignnientl and registration forV the op .posing cooperating tools, essential to an eiii cient operation of the parts athigh speeds, and to a `perfect setting and clinching of the eyelets, without injury to the tool or eyelets.
The upper tool-holding plunger 57 is pro` vided with a notch()`v at its rear side, into which the edge of a guide and anchoring plate 61 projects, the plate being rigidly attached to forward arin k63 of the upper rock lever 62, having a bore 63a, traversed by an eccentric bush hearing- 6ft, which in turn is traversed by a removable shaft 65, the said vshaft being slidingly held in bearings 66 and 67 at the upper forward side of the casing 1above and rearwardly ofthe stub shaft 55. The eccentric bush bearing 64 on its right end vis provided with a cranl?` arin 65:", having atlits Outer extremityla spring pressed detent pin 65", designed to engage with anyof a` series ofopenings 65, provided in a quadrant plate 68, integral with the upper toolactuating lever 62. When the` detent 'pin A65b is withdrawn from one of the openings 65,\and the arni 65 rotated forwardly, the action of the eccentric bush bearing 64 lowers or adjusts the lever 62, and consequently, its connected tool holding plunger for vertically adjusting the upper set of tools.
lWhen it becomesv necessary to reinove the upper tool-holding plunger v57 for' substituting` a ditl'e it kind or size of tool,vthe alr6 is withdrawn `from the bearing 67, andfronfi Vthe bore of the erm ntic buslrbearing 641-, allowin@r the lever t to be swung upwardly about` tie pivot '17C' of the toggle link ngages the anchoring plate 61 in the notch of hetool-holdingplunger 5.7 and allows its withdrawal. from the head. The shaft inay then be r sorted within the bearing' 67. to `f n a Vrest for the Vlever 62 in its raised po The operation of replacing the colnbin c.. upper tool-holding plunger isthouglit to be obvious from the above description of the reverseoperation.
The mechanism for actuatinpr or reciprocating the upper tool-holding plunger comprises; the following parts.
The arm (533 ot the lever (l2 is pivotall)v attached by a pin 70, to the upper tork T1. ot a, double forked toggle link 7:2, the lower 'fork 73 of which, etraddles the forked arms T5 oi a forked toggle TG rotativel)4 mounted upon a shalt 77. which Shaft is in turn mounted ro tativel)v in bearings TS and 7S) ot the casinar 1. extendsv outside ol.' said casino, is provided at its lel't outer end with an adjustable lever arm SO and at its rigrbt end with an c velet racewa)7 trippineY roller arm 81. (see Figs. l and 3). the lever arm and tripping arm functioningT to throw the eyelet racewa)V from operative or 'feedingY position in respect to the set spindle 39 as hereinafter more full)1 described. The 'forks` 73 and 75 are traversed by a pivotA pin S5, provided on its lett end with a presser toot tripping' disk S6. (see Figs. Q and il) functioning to raise the presser-toot or work clamp duringy the, forward movement ol the togrg'les TQ and 7G. the presser-toot overhanging;l a work table or punch block torv holdingl the work during' a punching); or per* torating operation. The pivot pin S5 also traverses the head 87 of a stem ST. haring adjustable threaded engagement with a yoke F58. the said head ST beine; placed between the arms oi" the i'orked toggle TG, the opposite arms 8S) ot the yoke S8 connecting' with the pitman as a member converting rotarv motion into reciprocating motion tor reciprocating the upper tools. The said arms 89 are pirotally attached to the pitinan by a pin 96. rlhe pitman 95 is mounted adjacent the disk (i 'tor horizontal reciprocative moreinent upon erooved slide blocks 9T, riegidlv held upon cross bars 9S. placed transrerselj.7 of. stepped in and extending` to the right beyond the 'trame '1. and upper and lower arms 10() at opposite sides ot the pitman 95, engage the upper and lower `grooves 9T of the blocks 97. to permit ot the reciproeatire niorenient of said pitman 95. r[he bod)1 of the pitman 95 is of rectangular trame-likel contiguration and upon the opposite inner faces ot the same; bearing gibs 101 are tastened. which engage the rotative cam 105. fastened to the disk (i, and movable therewith. The cam 105. (see Figs. 2 and 3) moving with the disk G as a result ot the rotation ot the shaft 2. reciprocates the pitman S15, transmitting motion to the lYoko SS, stem 8T. toggles T2 and 7G and lci'er G2. to cause the upper tool 5T to successi rely punch the stock. release the punch trom the. punch plate and subaeijluently assist in the setting; ot the ejclet, a more detailed description ot the operation ot which will be given hercatter.
rl`he following" means are employed tor reciprocating` the tool carrying head 51. (seey Fil. 8).
A feed cam 110 having a hub 111 is rigidly mounted upon the main drive sha l, il. bctwcen the bearings t) and 1- and i.'-; .set upon the said shaft 2 in such angular relation to the cam 105 as will allow the cam 10:7 to cause the upper tool 5T to punch the .'-tock and to then be slightlyv ri d from the pouch blorl: lwtore the feed can) and its correlated mechanism. mores the tool cazrxing head to the lett a predetermined dif-tance. preparatory to the ei'elct FettineY :pez'atiofn 'l`he i'eed mechanis-an and its operation is bert shown in Figa. 1- and tl. The i'eed cam 11d. rigidl;7 mounted as5 bfi-,tore nnrntioncd upon the main drive shal't concis; with Ehe gibs 11il of a pitnian 113, .similar in cointrurtiou to the pitman $5, mounted parallel therewith and sliding in grooved Salido blocks: 114. mounted upon the cross barsv fit1.. in a` manner cxactliI similar to the pitman 153. A three part link 11G pirotally connected with the under side ot' the pitman 113 l a .screw pin 11T, (see Fia'. 5). engaged through the head ot the, lett threaded .socket piccc 11H ol .said link 1113. ri`he le l't threaded .sockel ol' the part 118 is engaged b r the corrcspomling left threaded end oi' an adjusting rod 115). harina' a central sfplared portion. and havinf,r its opposite end provided with a right thread |n gating a correspondineljiY threaded socket of the yoke section 120.
The inner surfaces oit the arms o1' the rola: section 120 engage the outer surfacesr oi' the arms o1 a forked link 121, and a pivot 122 traverses the arms o1 the Yoke section 12H. the arms of the forked link 1:21, (fcc Flew. i. 15 and 1G). and the outer end 1:2?, ot a pirot slide bar .125,the Said end 122i being di:V posed between the arms ot the it'orked link 121. the oppoeite end o 1i which is piroted to the raide bracket 137, as rt- 121?. The .swingingA link bar 125 is mounted tor slidingr more ocut in a groove 1% ot a tulcruni head lil? and is held within the groove 1526 by a cap plate 12S, suitably fastened to the head by .screws 129. The fulcrum head 12T in intcn'rai with a vertical pivot 130, rotatirelji held in a rertical central bearing: 131 of a cross slide bar 135 mounted for sliding motion in guido brackets 13G and 137 attached to thc outside oit the casing 1. The eroe?` slide. bar ot carriage capable o1 transverse or longitudinal movement in either direction to more the tulcrum head 127. to change the tulcriun ot the'swingiun' link bar 125. the lett end il() oi which projects beyond the tnlernm head 127 and is connected by the pivot 1-11 lo the, forked end 112 of a link `1 ll,the oppwite end ot this link being pivoted at 11:7 to the lower arm 146 ot a vertically disposed .shalt 1li", mounted rotatively in bearings 11H and 1li) projecting?r trom the caring` 1. From the upper part of the shaft 111'? project s; an arm 1-15)`-` forming an obtuse angle with the arm titi, and haring a linl': 15() piroted thereupon al` 151, the opposite end of said link being piv- Utl oted to the underside of thetoolcarrying head 51. The outer-*end of the foijl-:ed link 121 is pivoted to theup'per side of theguide bracket 137, as .at 121, the said link acting to prevent lateral movement oit the swinging link bar 125 during the, forward and rearward movements of the pitmun 113 and-of the link 116 `connected therewith. As before stated, the cross slide bar 135 is laterally slidable in the guide brackets 136 and r137, to change the fulcrum point of the swinging link bar 12.5. As shown in the drawings, the carriage 135 and its fulcrum head 127 are positioned to give the .ordinary minimum length of work feeding throw to the head 51.
`In order to=increase thelengthof .feed for sett-ing the` eyelets. at a maximum distance apart, the carriage 135 is moved to the right to change the position-of the fulcrum block 127 and manually operated means is prov vided to move tbecarriage and to limit this movement, a descriptionofwhich follows` Pivotally attached as at 166 to a lug on the guide bracket- 136 (see Fig. 4) j is an arc shaped lever 161, the lower end of which is pivoted at 162 to a link ,163 and the opposite end otthis link is pivoted` at 1611 to a lug 165, cast upon the under face of the carriage 135. To the upper outer end of the arc shaped lever 161 (see Fig. 4) is pivoted at 166, a rod 167, suitably connected with a toot treadle (not shown). The operator depresses tbe rod 167 and with it the lever 161, and, as a result, torcesthe carriage 135 tothe right, (Fig. S), lett, (Fig. 4), to a distance`determined by the adjustment of a set screw 170, mounted at the end of the ,carriage 135, and enacting with the guide bracketv 136, the can ringe being returned and maintained in its initial position by the action oi a spring 171, the terminale of: which are fastened at 17 Q,
17 3 respectively, tothe casing 1 and carriage` Anadjustablc stop'174 is provided at the right end of the carriage 135 (Fig. 8), to limit the movement of the carriage against the action ofthe spring 171, the said stop coacting with the outer surface of the guide bracket 137. j
The operation of the feed mechanism will be obvious from van inspection of Fig. 8,
`wherein dot-andfdash lines show the posi-V tions oi the various feed elements when'the tool carrying head57 posltloned for an eyelet-setting operation.. In virtue of action et the tced mechanism above described the spacing or' eyelets caribe, quickly and accurate'y varied, and alternate long or short spacingcan be accomplished by simple adjustment ot' the stop screw`170, in conjunction with tbe depression of the lever 161, to change `the Lulcrrun` point of the slide bar 125. YVhcn it desired to alternate from shertto long spacing, the carriage is shifted by actuation of the -lever 161 and when a short spacing is again desired the lever 161 and carriage is released, whereupon the s rinof 171 automa-ticall f returns the carria el head 127 tothe initial carrying head can therefore be varied at the i will of the operator, while the machine is in motion, within predetermined limits permit- I ted by a maximum movement of the carriage 135, for which the carriage was set by the stops 170, 1741. To exemplify this feature, let it be presumed that the maximum movement for the tool headteeding stroke is two inches, and for such maximum stroke the set screw 170 outward, to` permit the stop plate 0n theV lett end of the carriage, (Fig. 8), t0 strike against the machine frame or carriage bearing bolted upon the trame.` The lever mechanism in connecting the tool head with the pitman. would then throw the head in each revolution of the cam 110 or full reciprocation of the pitman 113 a full maximum stroke ot two inches, as long as the operator kept the lever 161 depressed or the carriage positioned toits extreme right limit. TheV carriage could be. permanently set in such position by set screw 174,113 occasion reeV quired, or the spring 171 removed, which would permit the carriage to remain in any adjusted position. The parts are designed for a constant minimum distance of head feed reciprocation, for moving the tools to an appropriate position over the table or cutter block, which, in this instance, is ,station` ary for a work perforating operation, and to :inappropriate position clearing the table, a cutter block for` un eyelet inserting and clinching operation.. If the cutter block was movable, the minimum head movement would not be required. The minimum punch lblock clearing movement may be said to measure one quarter of an inch.' The operator therer fore can at random change the reciprocating stroke of the head correspondingto thedegrec he moves the carriage 135, so that the head can have areciprocating stroke of its minimum onequarter inch toV any degree up to its maximum two inches. The maximum for manual treadle control is fixed by the` degreeof stop adjustment of the stop screw carriage appropriately for a one inch stroke of the head, vwhileits minimum stroke remainsv constant.
axis of the swinging link 125, thus increasing or decreasing its lever motion transmission The adjustment ot the' stop screw 1741 is primarily for bringing the to the parts connected to its tree end. The tulcrum tor the link 125 when moved toward the end of the lever connecting yoke 120, ot the connecting rod, increases the are o t movement at the opposite end o? the link, increasing the head stroke and conversely when thel fulcrum is adjusted in an opposite direction. The cam throw and pitn'ian stroke is constant and the head stroke variable.
rl`his is ot' considerable advantage when applying the eyelets upon shoe uppers, as it enables the operator to change the eyelet spacing while the machine is operating at high or Jfull speed, it being desirable to change the eyelet spacing at curved portions 'tr m the spacing toward the upper end of the upper or lower end.
The work is supported upon a table comprising an attaching base 181 (Figs. 1 and 2) provided with a lng 182 upon its under tace, the same resting within a corresponding groove 183, formed in a projection 1811, aty the front right side ot the easing 1 and held therein by a headed screw 185. The base 181 is formed with a projection 186 extending up- 'ardly and horizontally z lross the easing 1, between the upper and lower tools ot the head, and is supported at its outer end upon a shoulder 18T at the opposite side ot' the casing 1. Extending forwardly from and torming a part ot' the projection 184 is a horizontal work rest or table 188, having a slot 189 formed lengthwise there across, this slot being so positioned in respect to the upper and lower tools as to permit them to centrally trziivfnse the slot', during the work feeding and eyeletsetting operation. The slot 189 is of sutlicient length to allow the tools to traverse the saine at the maximum stroke of the tool carrying head 51. The punch block 190 is counter-.sunk within the work rest, 188 and positioned beneath the punch and 4set. .37, when the tool carrying head 51 is in its normal position, the upper surface of' the said`block 190 being slightly below the upper surface of the work rest, in order that, alter the stock has heen punched and the punch has been released, and after tool head has moved to its eyelet-setting position, the shank 191 of the upper tool will in its downward movement to meet the set, be forced into the opening in the stock to positively and more rigidly hold the same against the upper surface of the work rest 188. A slotted gage 198 is adjustably tastened by a screw 1911 to the upper surtace ot the work rest 188 rearwardly of the tool 57, and provides a notch 105 at its forward end, into which the edge of the stock is inserted to guide the same. A presser foot 200 ot U- shaped formation surrounds the slot 180, and contacts the work rest 188, or the upper surface of the stock when the machine is in operation. The. U-shaped presser toot 200 is open at its right, and at its back is provided with a rearwardly extending lever arm (Fig. 2)
201, tulcrumcd to the casing 1 as at Q02, the opposite end of this arm being formed tor eoaetion with the tripping disk 8G, mounted upon the pin 85, pivotally connecting the forks 78 and 75. A spring 201 is attached at 205 to the lever arm 201, forwardly of its tulcrum 202, and at 20G to the casing 1, the action ot this spring being to hold the presser 'toot upon the stock. In the drawings the. presser toot is shown in the position it would occupy when the stock is heneath it, although thev stock has been omitted for clearness ot illustration. ;t rod 207 traverses the coils ot the spring 20-t and ahuts the spring attachment screw 205, extends downwardly there troni to a lever treadle (not shown) and functions to raise the presser foot for insertion or removal ot the stock.
Directly 'following the punching operation, the tripping disk 80 coacting with the end ot the lever arm 201, raises the presser foot to allow the feeding of the stock and immediately before the setting operation, the disk 80 reeedes to allow the presser toot to engage the stock during the setting operation. 'The above result is accomplished by the movement of the toggles 72 and TG, the ends ot which are traversed by the pivot pin 85 carrying tlu,l tripping disk 86.
Eyelet magazine.
11n eyelet raceway plate is generally indicated at 300; (see Figs. 1, 2, l, (l and 0") and rests slidably upon an incline shelf 801, which is fastened as at 302 to the right vertical outer tace ot the easing 1, and slants upwardly and rearwardly and projects beyond and above the level ot the top of the casing 1. The under surtace ot the raceway plate 300 slidably resta upon the upper surface of the inclined shell' 801, allowing the said raceway plate to be swung late ally toward the right, to prevent the engagement ot eyelets by the set spindle, all to be more fully described hereafter.
it the upper under tace ot the shelt 801 is Aformed a ca sing 304, having provided therein, horizontal hearings 305, and a vertical hearing 80G. In the bearings 05 is held a rotatable drive shaft 80T, having a drivipulley 308 rigidly fastened thereto and :uljacent to the pulley 808 is mounted a second 'idler pulley 809, the pulley 308 being belted to the power shatt (not shown). Between the bearings 305 and rigidly fastened to the sha'l't 30T is a worm gear 310, engaged w'th a second worm gear 311. attached to a shaft 812, rotatable within the bearing 300. 'the upper end ot the sha'tt. 312 has toi-uuid upon it a peripheral retaining flange 313, resting! in a socket 81.4-, ot' the casing :l0-l. and the upper end ot' the shatt is also provided with a relatively shallow cylindrical bore ft. diametrieally traversed by a pin 816, the 'function ot which is to engage the lin-:er slotted end 317 of av brush spindle 318, havyengagenient with the drive :neen
ing a circumferential flange 319, whose under surface engages the upper surface of the shaft 312 and rests thereupon, the said flange being seated in a depression 320, formed in' an annular boss 321 upon theunder surface of the eyelet raceway plate 800 to forni a pivotal bearing for the said raceway plate, and theV and its lower end and that of the boss 321 form pivots about which the eyelet rareway plate is swung to displace its eyelct delivery end., to prevent the set spindle from enga-ging an eyelet.
a lucana for raceway plate andfor allowwing a and pc ready removal of the said racer.
anchoring the pivotal mit ot lthe l tirera The bore ota circular ltn'ush-huh i325 is traversed by the brush-spindle, the under surface. et hub resting uponthe in. raceway plate 300, being ccuntcrborcd at 326 cuits under side, to receive a, Washer 327, which washer is designed to upon a ehoulderl 328 ot.' the brui-:h spindle, and le contact the wall of the counter-bere as shown.
A broad headed screw 329 by threaded engaeeruent with the upper end et' the brush,
spindle, holds the `brush-hub `in positionf and fastens the brush-hub for movement with the brush-spindle. Brushes 330 are provided at the periphery of. the brush-hub an d function to carry the eyelets to openings (not shown)- at the right of an eyelet receiving surrounding the brush-hub and into which the eyelets are introduced through an opening at the top, the opening being closed by a. hinged lid 232. As best shown in Fifi.. l, the eyelets are delivered from the right side of the reservoir into the raeeway 233, down which they are guided to the delivery poi nt, the lowermosteyelet, when the raeeway is; s i for delivering eyelets, being in a position to be engaged by the set spindle, the. 1d lowern'iost eyelet being yieldingly held leaving the raeeway, by a spring actN eyelet` retaining nger 2345, placed adjacent- `the delivery end of the said raceivay.
The raeeway plate 300, at its inner nxid portion, is housed within a groove 235, formed as a part of the easing 1, (see Figs. il., 6 and 6), and means is provided upon the lower side ot' the raceway plate for adjustingy the delivery end of the raceway for the proper positioning of the lowerniost eyelet therein, above and in'vertical alignment with the setspindle. This means comprises a. downwardly projecting lug 236, having fastened The brush-soindle and theL thereto by a screw 237 a cylindrical projection 23S, the said proJection traversing an arcuate slot 239, in the sheltl 301, the said slot being concentric with the center of the brushspindle 318. Traverslng said lug and threadingly engaging the same is a set screw 240,.
abutting the lace of the casing 1 and having a lock nut 241r lor holding the set screw 1n its adjusted position. A spring attached at its lower end to-the easing l and with its upper terminal engaging a notch in the outer edge of the raceway plate, forces and holds the end of the set screw 240 against -the casing, allowing yielding lateral motion ot' the raceway. A handle 243, attached to the upper end of the spring 242, is provided ior disengaging the spring to allow the removal or lateral swinging ot the raceway plate wheny desired.
Manually operated means forthrowing the raceway outwardly, for the non-delivery of eyelets is provided, ot which `description follows. e V
The shaft 77, rotatively'inountedin bearings and 79 et the casing l and projecting beyond the casing at both. sides,is provided, as before. stated, with an adjustable lever arm` 80, having an opening S0a at its. outer extremity -tor engagement with a hook 80", forming part of a short chain 80C,- the end of which is tastened to the pivot 166 of theare shaped lever 161. The opposite end oit' the shaft 77 has the raceivay tripping arm S1 rigidly attacheel` thereto, which arm extends upwardly and. lorwardly to a point adjacent the under side el the raceway plate and is provided at its eictreniity with a beveled edge Sla Jfor engagernent with a roller 811 rotatively fastened to the under side ol"v the raceway plate 300. The
trippine arin 81 is tui-ther provided with a projection 81C to the outer endl of which is slidably fastened the upper end of a link 21h, the lower end of which is pivoted toa stub pin 21, projecting from and fastened to the right side oi the arni 21 ot' the` Se lever 19. `The upper end of the link 21b is slotted as a 21d and the slot ie traversed by a headed screw 2P, the bottoni ot the screw shank contacting the lower end of the said slot 2li-the said lower end or' the slot being held yagainst the Screw by a spring 21f attached to the screw 21e and to the link 2lb, the said link 21b cting to raise the tripplng ariu 81 to throw the raceway to the right immediately after the set spindle has engaged an eyelet and for 4the purpose ol' releasing the eyelet from the raceway against the action of eyelet retaining finger 234.
The portion ot' thev slot 214 extending above tie acre-w 21R allows independent upward nioveineut of the raceway tripping :.i'rin S1 against the action et the spring 21f, Whenit is desiredto temporarily interrupt the feeding oil eyelets for any reason whatever', and this independent displacement of the raceway lill Si il is accomplished by inserting the hook Sil into the opening of the lever arm Si), when, by depressing the arc shaped lever lill by meansv of the rod 167, the lateral displacement et the racewayv is obtained, Yfor the non-deliver)Y oit eyelets.
rlhe detailed operation oi the stoel; pnnching and eyelet-setting operations can best be understood from an inspection oli Figs. 2, iii, 33, 3st and 35, the tour latter views being in diagrammatic form.
The initial position ot the n'ieclianism for performing the abovementioned operi-.tions is shown in Fig. 2, wherein the upper toolholder 57 is at its upmost limit and the lover tool holder 39 at its lowermost position. Upon rotating the main drive sha'i't Z in the direction ot the arrow through an arc approimately two operations are simultaneously performed, (see Figs. 2, 82 and 33). The cani 105, coaeting with the pitnian 95, throws the pitman forwardly to torce the toggles 72 and 7G, also forwardly. bringing the axial center of the pin 85 in vertical alignment with the axial centersl ot the pivots To and TT, of respectively the upper rock lever (i2 and toggle 7G, to actuate the rock lever (32, i'orcing the upper tool holder and its tools downwardly to punch the stock, a continued movement of the pitman forcing the pin tlf forwardly, out ot vertical alignment with the pivots TO and 7T, raising the tool holder .sli "hi ly to bring the punch oli' of the table cntti block preparatory to the eed operation.
rlhe punch, in its descent punching through the material on the punch block, has its descent regulated for coming to a stop when the punch engages the punch block, thus causing` complete punching without injury to the punch or punch block.
Simultaneously with the above described operation, the disk and segmental eccentric block l1 sliding in its groove T, and connected by the eccentric pin lf3, of the disk lei., to the set lever link 19, operates to raise the outer forward end 21, ot the lever 1f), tor operating the lower tools, to move the lower plunpi till and tool holder 3f) resting thereon upuardlj,r i'or threading the eyelet teediiig and guiding spindle through an evelct at the end ot the racc-way, and positioning the eyelet l'or driving the same through the perforation in the work, and subsequent clinching. The eyelet :Feeding and centering spindle is yieldingly sust ained in the holder.
The eccentric action oi the disk (l and its related parts causes a relativelyY slow movement ol. the pin 13 during the iin-:t quarter revolution of the said dish, wi th a correspondiugly slow upward movement ot the lower tool holder 39 to eyelet engaging position. thus insuring the proper tool engagement with said eyelet. After engagement with the eyelet, the upward speed of the tool holder gradually increases and immediately after the. setting operation, the downward .speed of the holder is e-itrenielyv rapid, thus a voidinpr the possibilit)v of collision with the work roest or with the eyelot raceway. since the tool head 5l moves direetlvv after the said settingT operation. 1
rlhe continued rotation ol the disk (l and cam lilo. (see Figs. ill and 35). through an are o't apin'oxinratelv litio. during which rot: tion the tool carrying head 51 has moved to the leit. (sce Fig. 3(3). acts to force the upper tool to evelet clinrhing position by eansiu'r the arial center ot (he toggle conpin Q5 to move rearwardly. and again become, verticali.` aligned with the pivots T() and TT: to eccentricallv torce the block ll and pin l?) downwardly. and to raise the puin-h to .setting position. as shown.
luri he continued rotation of the disk (i throu, an aiiproxiinate are ol ll-0, the conihin. d punch and anvil 57 and lower tools il?) are quickly released. the tool holder 5l!) traveling rapidi) downwardly to its normal pavilion. as above described. and the upper tools :77 also assuming their uppermost position through 'the action ot the cam 105.
is the pin f travels 'toinw'ardly` with its i'l connected toggles. the tripping dish 46 engages the rearward extension oi' the arni 201. to raise the presser-foot. innnediately utter thil puin-hing operation, preparatory to the ino.'ement to the lett of the, tool carrying head. :"i s the pin S5 travels backwardly. (sce Fie'. 3l) to brinel the punch and anvil to .setting position. the lever o'l the presser-trait ifs, released and the presser-foot is l'orred againstthe stock b v thel spring Qlll, lirinlv holding the .same during the setting ol the evelet therein.
Drive and clutch mechanism is disposed at the right of the casing l. in principle oi" oper ation corresponding to some clutch mechanis-m. disclosed in an application. .Clerial No. 531%' ,000, tiled by me on October lli, lfl'll). now Letters Patent No. lclllhllil. issued Der. l). and the clutch mechanism is classilialile as a distinct and separate improvena'nt trom the invention herein. Only an ii'iferential disclosure will lie made oli the details of ron- .struction thereof as is necessariv l'or the proper uiulerstanding and operation oi the machine as a whole.
Referring to Figs. l. il. 3G. 53T and 3S. the drive and clutch pulley 5 is .shown loosely and rotativelv mounted upon a (,-ylindrical hub member lill). rigidly attached to the shalt Q hv a pin `lill. rlhe bore 1.102. o'fi the clutch and drive puller 5, has l'ormed upon its inner sur'lace and at the outer edges of the. same,` shalhiw segmental depre nis -`103, their inner surfaces being depressed in respect. to the bore 409. and the endsl of the depressions form stop shoulders t0-l for coaction with pulleyY brake means mounted within the hub member 100. The hub member is provided rneeeee with a transverse horizontal bore 405. adjacent its periphery, into which is rotatively placed a shaft 406, having eccentric cylindrical projections 407 at each of its` ends, upon which are rotatively mounted brake collars 408, desi'ned to coact with the shallow depressions 403 and shoulders .404, of the bore 402, of the pulley 5, to positively clutch the saine when forced outwardly thereagainst. Fastened to the hub men'iber 400 at its inner face is a dished circular' brake housing 10, open at one side and attached at its closed side to the hub member. 400, as at 411, and is provided with a brake flange 4112L fer engagen'ient by brake shoes, hereinafter described. j y
A lever 412 is adjustably fastened to the inner eccentric projection 407, and at its lower end is provided with .an outwardly projecting stoproller 413. A spring 414 is connected to the lower end of the lever 412 and to `the housing 410 and acts through the medium of the lever 412, shaft 406 and eccentrics407 to force the brake Collars 408 into engagement with the depressions 403, and subsequently with the shoulders 404 to positively Connect the pulley with the hub 400.
shown in Fig. 36, the brake collars are disengaged from. the inner. surface of the pulley bore, the springV 414 is under tension, and this position of the clutch parts corresnonds to the initial position of the mechanism of the eyelet machine, as shown in Fig. 2. ln this position, the roller 413 is engaged with a stop arm 416, depending from a laterally slidable collar`417 mounted upon the shaft 2. provided with a peripheral groove 418, and with ahubprojection 419, having upon its right a peripheral involute cani 420,
`for engagement with the roller 413, to force the said roller and its connected lever 412 to brake collar disengaging positiontorelease the pulley 5.
`A slight rotationof'the collar 417 and its depending stop armk 416, is permitted by a yielding horizontal stop shaft 422, mounted slidingly in lugs 423, projecting from the casing 1, against the end 422a of which the rear face of the depending stop arm 416` rests. i The rear `end 422` of the shaft 422 has ,connected to it, as at 426, a lug 428, to which is attached one end of a springl 425, the opposite end of the same being fastened as at `427 to the top ofthe bracket 137. The function of this spring 425 is to yieldinglyv counteract `the shocks `communicated to the depending stopA arm y416,. by the roller 413. as it engages Vthe said arm. The rotation of the shaft 422 in its bearings is preventedgby its attachment to the arm 4282 the outer end of which slid- Y ingly engages a pin 429 held by the rearwardmost lug 423. v j
Mounted upon. the extended ends of the shafts -98 are brake actuating levers 430 and 431, whereof a description-of cachend of their operationfollows. The leverv 430is adjustably clamped upon a bushing 43l,.this bushing being mounted loosely upon the shaft 98 and having a brake shoe arm 432 at its outer end. `The lever 4301projects rearwardly, downwardly, and in alignment with and beneath the rolle-r 413, and is designed to be engaged with and depressed by the said roller in its rotative movement and before its engagement with theV stop. arm` 416,` to force the brake shoe 432a attached to 'the brake shoe arm 432 into lengagement with the brake flange 411e. Mounted loosely between the lever 430 and brake shoe arm 432, isa stopV lever 435, the lower end 436 of which engages the roller 413, to prevent its disengagement from the stop arm 4116. The roller depresses this stop lever 435 against the actionof a spring 437, fastened at 437a-437 respectively to the brake lever 430 and tothe saidV stop lever. f
. The brake actua-ting lever 431V is mounted loosely near the-end of and upon the rearwardmost shaft 98 and extends vertically downward. its front-face 440 engaging the V'end 422b of the shaft 422 by which. itis forced outwardly `to bring the brake band 445j`into engagement with Vthe brake flange 411@ when the rolle-r 41.3,strikes the projection 4.16 to positively prevent further rotation of the shaft 2. A pin` 441 projects laterf ally from the lever 431A and contacts a. compression spring 442, adjust-ably mounted as at 443 in ai lower depending arm 444 of the brake shoe lever445, the said brake shoe lever being loosely mounted for oscillation` onthe shaft 98, adjacent the outer face oft-helever 431. A horizontal arm 446 projects rearwardly from the brake shoe lever 445 and at its outer end is provided with an upwardly extending adjustable set screw 447. the head 448 of which is designed for engagement with and depression by-an arm 450, adjustl ably clamped at its hub end to the end of a rotatable shaft 451, parallel with and above the shaft 422, and held` in a. bearing 453, of the casing 1. At theforward end ofthe shaft 451 is adjustably clamped .depending tripping arm 454, provided at its lower end with a. pin- 455, engaging the groove 418'of the collar417. Upon the depression of the arm f 450. by. the operator, the collar 417 is forced to the. left to disengage the stopY arm 416 from its engagement with the roller 413, to allow the brake collars 408 to engage the hubV de'- pressionof the constantly rotating pulley 5, to set the eyelet machine in operation.A The arm 4501is depressed by the operator through nie-ans of a tre-edle', (not shown), connected to chain 460, the upper end of which has a hook. connection 461, with lthe outer end of the lever 450. l
The brake actuating leversv430 and 431 are, in rapid succession caused to bring theirrespective brake shoes into contact with the brake fla-nge 411, the lever 430 being irst actuated by the roller 413 as it approaches tor engagement with the arm 416, and the lever 431 being thereafter immediately actuated as a result of the collision of the roller 413 with the arm 416, the rearward motion ot the said arm being communicated to the shaft 422 and from it to the lever 431.
counter stop 457 is attached within the groove 418 in substantially diametrical relation to the Stop ariii 416. and abuts the end of the shaft 451, its Yfunction beiner to prevent counter-rotation ot collar 41T, after the stop arm 416 has been engaged by the roller 413, and when the shaft 422 is retracted by the spring 425.
An arm 465, projecting vertically trom the hub ot the arm 450. is provided with a. spring 466, attached at 46T to its upper end, and at 468 to the easing 1, the function of the said spring and arm being to automatically return the projection 416 to a position for engagenicnt with the roller 413 when desired.
dien the roller 413 is released from contact with the stop arm and moves inwardly under the action of the spring 414, its inner fiat face contacts the outer tace ot the arm 416, and slides tliereagainst, its further inner movement being prevented by the ed ge ot a circular washer 41.9", equal in diameter to the diameter oi the hub projection 410; these. contacts are maintained until the Forward peripheral edge ot the roller passes the rear vertical edge of the arm 416.` at which time the collar 417 and attached involute cani 420 are thrown to the right by the action ot the spring 466, to briner the cani into a position for engagement by the roller 413, to force the same outwardly, to release. the brake collars 408. This release takes place before the shaft 2, and correlated mechanism reaches its initial position, the momentum et the machine completing the initial setting of the said mechanism.
In Figs. 39 to 42 inclusive, I have illustrated a torin of' punch block tor use in stock, upon which is sewed a military stay7 strip. Much difficulty is experienced in setting eyelets in these strips, inasmuch as the right or fair si de of the upper, faces downwardly, and consequently provides no means whereby the. worker can locate the point of insertion ot the eyelet with sufficient accuracy. I overcome the above difficulty by providing a circular punch block 500, provided upon its upper face with a groove 501, the width of which is sutlieieiit to allow an easy sliding movement of the stay tlierewitliin. The punch block is provided with a depending pivotstud 502, which traverses the work table, to allow a rotative movement ot the attached block. A broad-headed screw 5053, is threaded into the lower end ot the stud the head ot the saine engaging` the under side of the work table, to prevent withdrawal or displacement o the block, but to allow its t'ree rotative movement coiii'ioriiiably to the requirements, as determined by the curvature ot' the sta-y strip :305, scwed to the up per 506.
As shown in Figs. 41 and 42. the stay7 is inserted and guided in the groove .301, of the pivoted punch block.
The above described construction provides a means for accurately and automatically guiding the stay to successive eyelet-setting positions.
Having described my invention, l. claim:
1. In an eyelet machine, a tool carrying frame, a combined punching and setting tool, a setting tool opposing said first named tool, each mounted tor reciprocation in said guide trame, the central axes of the said tools being in tixed alignment, means l'or reciprocating said tools at ditfcrent speeds, and means for feeding said traine.
2. ln an eyelet machine, a tool carrying traine, a combined stock-punching and eyeletsetting tool, an eyelet setting-tool opposing said lii'st. named tool, each mounted tor reciprocation within said guide frame, thc cciitral axes ot" said tools being in iixed alignment, means for causingl lateral reciprocatioii o1 said frame. and means for operating said tools at dill'erent speeds for a stocli punching and an eyclet setting operation.
3. In an eyelct machine, a tool carrying traum, a combined stock-punching and eyeletsetting tool, an eyelet settingtool opposing said tirst named tool, each mounted l'or rc ciprocatioii in said frame. the central axes ot said tools being in lixed alignim-nt. means tor varying the. iteed throw ot the said frame, and means for operating said tools at ditlerent speeds to punch the stock and set an eye let within the punched opening.
4. In an eyelet machine, a tool cariying frame, capable of lateral i'cciprocatory motion, a combined stocli-pi1iicliiiig and elveleisetting tool, an eyelet setting-tool opposinff said tirst named tool, each tool iiiounted tor rcciprocatory motion within said trame. thi.4 central axes ot said tools beim.r in lixed alignment, means il'or operating said tools at ditferent speeds for stock-punching and eyeletsetting operations. and means for varying the lengt-li ot the reciprocatory motion ol said unitary punch, feed, set and guide traine.
5. In a machine for inserting fasteners, a tool head, two opposit'ely disposed coo1iierating tools mounted in positive alignment. in said head, means for reciprocating said head means ior actuating one of said tools to en-l gage. the work and llecd it when said head is recipiocatcd. and means for actuating the other ot said tools to present a fastener to the work fed by the other tool.
6. In av machine for inserting fasteners. a tool head, two oppositely disposed cooperating tools mounted and movable in positie.:
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lUU
lltl
lill.'
alignment in said head, means for reciprocating said head, means for act-uating one of said tools to engage the Work and feed it, and means for actuating the other of said tools to present a fastener to the work so fed.
7. In a machine for inserting fasteners, a tool head, two oppositely` disposed cooperating tools mounted in positive alignment in said head, means for actuating one of said tools to engage the work and vfeed the same when said head is reciprocated, means for actuating the other of said tools to present a fastener tothe work so fed, means for reciprocating said head, and means for varying the length of said reciprocating movement.
8. In a machine for insertingfasteners, a tool carrying head having relatively opposite bearings and an intermediate work receiving throat,opposing co-operatingtools respectively supported and reciprocable in said bearings, means for reciprocating `said tools at different speeds one from the other, and means for supporting and guiding said head for sliding reciprocating movement in a Work feeding direction.
'9. In a machine for attaching annular fasteners, opposed upper and lower cooperating tools, a head unitarilycarrying said tools and supporting them in positive alignmentand registration, a race-way for supplying fasteners, means for actuating the upper tool to engage through Work disposed between the tools for advancing the same, andznieans for actuating the lower tool to iinpale the lead-4 ing fastener in the race-way while the tools move unitarily with thev head in a work ad vancing direction, saidlower tool being arranged to center and guide the impaled fastener into engagement with the upper tool.
10.` In a machine for attaching annular fasteners, opposed upper and lower co-operating duplex tools, a head carrying said tools and supporting them in positive alignment and registration,` a raceway for supplying fasteners, mea-ns to lmove'eaid tools unita-rily with the head during a work feeding movement, an element on each of said tools adapted for co-operation in attaching a fastener to the work, a second element on said upper tool arranged for engagement through work disposed between. said tools during a feeding l.iovement, a. second element on the lower tool arranged to impale the leading fastener in the raceway and center the same relative to said first co-operating elements, and'means for actuating said first co-operating elements to attach the fastener to the work. 11. In a machine for attaching annular fasteners, opposed upper and lower co-operating tools, the upper tool comprising a combined concentric punch and anvil, the lower tool comprising a yieldingly sustained spindle and a. clincher concentric therewith, a head unitarily carrying said tools and supporting them in positive alignment `and registration, a raceway for fasteners, the punch ofthe upper tool. being arranged to perforate work sustained between the upper and lower tools and engaged in the perforar tion for advancing the work and the spindle of the lower tool being arranged to impale the leading fastener in the raceway while the tools move unitarily with the head in a work advancing direction and to center and guide the same relative to. the anvil and clincher, and means for reciprocating said tools in timed relation and independent functioning degrees. Y
l2. In a machine for attaching annular fasteners, two co-operative constantly aligned setting tools, means to move said tools unitarily` laterally and to cause one to engage work for advancing the same, the other to transfer a fastener from a: raceway with the work advancing movement and both to cooperate in attaching the fastener to the work, and a raceway for supplying fasteners.
13. In a machine for attaching annular fasteners, means for moving a tool holding frame for supporting opposing tools in cooperative alignment laterally, means to reciprocate oppesing cooperative tools in said frame, a work supporting table interposed between said tools having a punch block and a tool receiving aperture, one of said tools cooperating with sai-d punch block for punching an vaperture in work for the reception of a fastener and for toolfengageinent with the work to feed the same during the lateral movement of said frame, the second tool being `adapted to transfer' a fastener' from a race-way with the work feeding movement, and the tools cooperating through the table aperture in attaching the fastener tothe work, and race-way for supplying fasteners.
14. In a machine for inserting fasteners,
` a tool-head carrying oppositely disposed co.
operating tools in positive alignment, means for supporting and guiding saidhead for movement at right angles to the movement of the tools, means for moving said head, a raceway for supplying fasteners, and means for actuating one of said tools carried by said head to feed the work and the other to transfer a fastener from Vthe race-way withthe movement of said head.
l5. In a machine of the class described, a tool carrying frame having opposing aligned Vtool supporting bearings and a workreceiving throat therebetween, said frame being movable transversely to the working strokes of the tools, reciprocable cooperating tools respectively supported in the bearings of said frame, means for actuating one of said tools to feed the work and the other to sresent a fastener to the work, means for transversely reciprocating said frame, and means for varying the reciprocating stroke of said frame.
16.. In a machine of the class described, a
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443682A (en) * 1944-12-20 1948-06-22 United Shoe Machinery Corp Eyeleting machine
US2499491A (en) * 1944-12-22 1950-03-07 United Shoe Machinery Corp Hopper with openable gate in bottom wall

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443682A (en) * 1944-12-20 1948-06-22 United Shoe Machinery Corp Eyeleting machine
US2499491A (en) * 1944-12-22 1950-03-07 United Shoe Machinery Corp Hopper with openable gate in bottom wall

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