US1772471A - Cutting machine - Google Patents

Description

Aug. 12, 1930. 7 w. c. STEWART 1,772,471

CUTTING MACHINE Filed June 15, 1925 3 Sheets-Sheet 1 w. c. STEWART CUTTING momma Filed June 15, 1925 3 Sheets-Sheet 2 w/////fi//////// WVE/VTU/a dm \\\\\\\\\\\\\\\\\\\\\\\\\mWW 3 Sheets-Sheet :5

W. c. STEWART CUTTING MACHINE Filed J1me 192s 5W6 W4 ma W 4 m F N M w a W, I W\ IQ y 0 1 .5 a W. 1 Q Q a F a 5 r nte ,J ne'2 t1 21? n an, plicatio'n, or controllingjthe shank skiving,

or 'shanl'zi ng-out operation a it ireqh ntly termed, so that the s'kiving willfbetlocated more, accurately Withrelationto thiejhe JERSEY it Patented Aug. 12, 1930;

wI'LLIAMo; smwniyr', or swamrsoogr'r,MAsseonnsE'r'rs, assrel ron To UNITED sHoE MACHINERY CORPORATION, OF PATERSON; NEW JERSEY, ACORZE'ORATION OF NEW impl cati filed iun 15,

This; invention relates to cutting machines and is 'hereinilln'strated as embodied in fa machine designed for shapingthe heelends of shoe sole blanks.

In the manufacture of Goodyear Welt shoes, it has been customary to employ what are termed blockedsoles, that is; s 0les which are not shaped fleven' approximately to the desired final'peripheral contour at theheel adapted for cnttingthe heel: 'endlof a blocked contour. A sole softreatedhasthe'advantage;

sole, before attachment to a shoe, toFsnbstantially the 'desiredfinal'size and peripheral i for example-that the shaped rear eiid of the sole Will thenfnrnish'an accurate gagingjsnr- Y face which may be utilized in the manneriset forth 1 in iUn'ited States Letters Patent. No.

end of thei so'le. k

In accordance with?a feattlretffthe-i veil tion, the illustrated machine is provided iivith lu a Mk .ma hin Iisiir tledwit g ar a plurality of open j 'di'esfofdifterent sizes r so p r dieing batf 'h l ei s ''l i k d' soles before. thesoles areattaehed t'd'shoes;.

and arrangedso that anyfonefofth'e d ,smay,

be readily moved from an" inoperati ing means for accuratelypositioningsoles "oni v, the work support. fAdvaiitageonsly too,;tl1e i dies have loutturned'jends which actj off- Waste pieces of material resnlting froinjthe dieing-oat operations., By the use .ofsnch fa Tthe heel ends offblocked W V Fig: aisa perspective view "showing in de- 1 tail-a portion of the inechanisin for adjusting dieing-out machine, t i ey iq s a. a V A Whatever their sizesi jvithont" the n e ssityfof substitution of parts or -of. time-consnining s;

I I Toinsureth'at the machine notbeeps? relati tothe Workfsnp a e fi iw tists anther?- and accurately shaped,

adj nstrnents f j 'jerated unless 1 afdie" positionedin operative I" ,another'featttre e e 0f 'avvayffronrth'e'sole. 1

otherfsir nilar operations. I In the accompanying draw ngs, g

one elnbodnnen rl l 7/ mime MACH NE (1925'. Serial no. 37,135,

novel n eansacting automatically'to lockthe "brin to t ie'Workfsupportfthus safeguarding "and against'mutilation of the Work.

With a'view to facilitating removal of the waste or chips resulting from "the dieing-out operations, in accordance-Withanother fea-.

t urefof the invention; in the illustrated ma- 'chine a member of the "solefgagingmeans is utilized to remove the material cutfr'om the sole blank. As illustratecha sole positioning {hel'ilber which facilitates positioning the sole initially and 1s retracted from contact with 'thesolefbefore' the heelend of the sole is died ont hasjimparted to it; thereafter movement across the line ofciit and backin such manner as to engage the scrap niat'erialand pull; it

" A-lt hough -the invention is; herein ftrfat ed as "eiiibodi'edin" a'niachine comprising apliirality' of dies adapted to be 'used interchangeably'to 'dieiout the heel ends-of blocked soles, it shonldbe understood that in various Frespect's the invention is not limited to em bodirne'nt in'such an organization, onto use iirshaping' 'the heelends of soles, but may beembodied to advantage in machines of theftypes'and in machines for g- 11s a side elevation of 0f fiy'invention;

p ig 2?-is' arear el evationypartlyin section} "of the-die blockyturret and driving 'connec-' 'tionstherefor; according t-o ny invention} F1g3'3' 1s a plan We? s'howlngt'he workpositlon ng and hold n'g devlcesy Fig; 4 3s a'Yp'erspective-view of th clutch 1 and locking devices therefor the Work positioning devices;

s0 performing c 35 1 by means of a clutch mechanism '46 (Fig 4) has been performed by the machine. The il-. lustrated machine comprises a frame 11 (-Fi'g'sJl and 2) supporting a bed 12, to which are bolted four standards 14 and 16. Mounted for reciprocation on the standards 16 isa turret 18 carrying a plurality of dies 20 of different sizes. The turret 18 is manually rotatable so that a selected die maybe brought into alignment with a-blank on a die block 22 to efiect ain operation on the blank upon re: ciprocationof the turret. The blankto be operated on 15 positioned on the block 22 by means of side gages 24, 26 (Fig. 3) and a heel gage 2'8, and during the dieing out operation is clampedto the block byme'ans of a presser foot 80.

The turret.18]( Figs. 1 and 2) is mounted on a rotatable shaft 32 supported onsleeves 34 slidable on the .guides or standards 16. Reciprocatingmovement of the turret is ob- "tained by means of arms 36, each of which is operatively connected at one end to theshaft .32, the other endbeing eccentrically mount" ed on a" drive shaft 38 which-is carried in bearings 40 supported by the standards 16 and by the standards 14. The drive shaft 38 is arranged for operative connection "to a;

U The blank to be operated on is positioned A fly-wheel 42 driven by an electric motor 44,

' Whi'chis of the one-revo'lution type. Depression'of atreadle 48 actuatesa starting lever v I 50 by means of a' link 52 to release a clutch pin 54-which operatively connectsthe' drive shaft 38 to the fly-wheel 42. Rotation of the [drive shaft 38 causes a downwardmovement of the eccentric arms 36, effecting a dieing- ,out operation of the turret Further rotation of the 'driveshaft raises the turret, and a cam 56 moves outwardly a roll, 58 on an arm 60. of

link 52, placing the starting lever50 in clutchreleasing os'ition, thjereby disconnecting the from the fiy-wheel atthejendof H ,linksj92. The. set-screw 98Falsoaets as a drive sha r the die block '22, a hand-wheel 62 is attached to the end of the shaft 32.] r A p V Mechanism is provided for locking the turret; 18 in-s'uch position that anyonejof -the -dies 201fmaybe locked in operative relation x-to the the block. This: mechanism comprises a plate 64 (Figs/ 2 and mou-nteclito turn I I, p I I 'fladjusted for different iwidth'sof blanks by '125 means-of the'set-screw 102 mounted on the rock-sha'ftz l04 and fwhich bears on the lug with the shaft 32 and provided, with notches "The -7 6 having .a sleeve 7 8 integral therewith slid- .-,.pa r'twithlthecenterline of the heel ly connected to the detent 68 will contact with a stop 740i the startin'glever 50,. preventing rotationthereof' and thereby locking the starting mechanism against such operation as would initiate a reciprocation of the turret 18.

The dies 20 flare outwardly at each of the open ends thereof, as shown at 21, Fig. 2,.in such manner as to cut off the waste pieces resultin from the dieing-out operation.

ie block 22 is carried by a member ably mounted in the 'casti'ngSO forming an extension'of the bed '12.. To secure adjust- .ment of the'die block22 with relation to the turret 18 "as the block wears -down, ascr'ew 82 is provided for engaging the sleeve 78 to rai'seor lower the block supporting member upon rotation of a hand-wheel 84.

In order that the block 22 may wear evenly under the action of the die's, provision is madegfor rotating the block-after each dieingout operation. Tot-his end the upper su'rface of member-17 6 is'provided with a toothed rack 86 (Figs. 3 and 5) which is moved by a pawl88thro11ghfa small are by mechanism which will be hereinafter, described.

onthe block f22b'y means'of the' ball line gages (Fig; 3), thebreast line gages 26 an th'e'flhee'l gage'28.",

si'o'n ofa-spring 96 and are positioned'to conball; line Jand secure "alignment of the fore- "a adjustment of-"the gages 2410;: different w'idth's'of blanks mayibe'madeby means of a set-screw 98 which bears against one of the.

stopfoi' limiting inward 'In'ovement' of gages 24;, The gages 26 complete the alignment of The gages '26 are pivotally mounted on the bed"12 a,' nd are normally. urged toward each other by ja'spring "100; The gages 26 are meanes ot the ga es. "lnwar'dfmovement of gages 26 is limited by anadju'stingjscrew The gages 124 by means of the links 90 are connected with toothed links '92 pivoted I on -a plate .94 carried bythe bed 12. The gages .24 are urged toward each other bythe' tenytactrwijthlthe forepart of Ttlieblank at the e theblank laterally of the block by contacting 1 with the blank at th v heel breast line and .movingthe heel end of the blank into alignment with the lcenter lin e of the heel gage.

' Y and bearing on a portion' of the frame. For

i gages 26- Which; move the blank "into proper.

a morecomplete description of the construe tion and operation of gages 24 and as s far set forth, reference may be made to spread and hold the blank iat theball line;

the heel end portionbeing engaged by the alignment--laterally,-andfthe end of the heel portion being brought into contact "with the heel gage 28 which limits longitudinal movement ofthe blank. 1 r 1 a vThe heel gage 28 is mounted in the enlarged portion 112: ofa sleeve'114' (Fig. 6) and is provided on its lower surface with arack 116 which is in mesh Wlth a pinion 118 mounted on a shaft 120 supportedwithin the sleeve 114. To effect a movement ofthe heel I gage radially. of the block, the shaft 120 is rotated'by means of the pin-'and-slot con struction illustrated in Figs. 6 and 7 A plunger122 is adapted to slide within the shaft' 12Q but is normallylocked against 1e; tative" movement by meansof a pin 124*ex tending through 'a'noblique slot126 of the shaft and contacting with the Walls of a 1011-- gitndinal slot" 128 in the collar 130 which is mounted onthejshaft 120. Consequently, longitudinal movement ofthe plunger-122 and pin 1243vvillcause rotation of the shaft 120 andm ovement" of gage'28 by reason of the contact ofthe pin with the Walls of theoblique' slot 126. ",The height 'fofthe gage 28' above theidielblock122:is adjusted by means ofa setscrevv 131 mounted 6n the frame and arranged to bear on the outer surface offthe gage. supporting portion 112" ofj the' sleeve 114:. Movement of the screw 131 eife'cts a row tation of the sleeve 114 to adjust the gage '1 towardor awav from the surface of th'e block. To provide for convenientad ustment of i the heel gageizs to various lengths of blanks,

afle'v er (132 is arranged for" actuating the V plunger 122 by means of a rock-shaft13t a forked member'- 136yengaging a' grooved collar 138ontheendof theIplLmger. During thepositioningfof a blank, the plunger122 Y and consequentlvthe gage28is held in ad 7 cycle of the machine op'erati'ons, 1' comprises a canine- (Fi S;1-ana-2) manna rotate; ateli crank '148' to raise i a link justed position: by means of atoothed rack 140 and a pawl 1 12 on the handlever132.

" To avoid I contact With-the operatingndie,

i it isnecessary that'thef gages 26 and the heel gage 28 beretract'ed from engagement vvith the "blank 1011 11116 die" block 225'early in he 'jflhe mechanism for retracting the ga'ge 28 originaljposition;

of the arm 152. Rotation of the collar 130 in-ia clockwise direction causes a similarrotation ofthe 124,: and since longitudinal movement of the plunger 122 is prevented by the latch device 14:O142,' the shaft 120 is rotated to retract the gage 28. As rotation of the'collar 130 continues, a pin 154 on a bell-crank 156Will be engaged in a recess 15 8 in the, flange of the collar130 causing rotation of the bell-crank'156. Sincethe latter is secured to the sleeve 114 by means of the bolt 160, rotation" of the hell-crank causes rotation of the sleeve" 114, and gage 28 is'rotated' awa yfrom theusurface of the die block! The gage is held "in it's rotated position during "the dieing-out operation by means of'a spring latch "162 Whichfengages a lug 164' on the bell-crank 156. a After an operationof the die, the roll 146 reaches the low portion 166 of the cam l l lsand a spring 168depresses the link150 causing rotation of the collar 130in' a counter 'clockwisedirectionwith theresult that the gage 28 isextended nearly itswholelengthout of its supporting member 112. Upon further: depression thexlink 150 contactswithsa plate 170 at 'tached to the latch 162, tripping thelatch and permitting a spring 172m rotate the bell-crank1156 which causes rotationiof vth'e [sleeve lltand of the gage28', Whileinits ex tended position,back towardvthe*dieblock;

On'stillfurther rotation ofthe cam 14 4:, the

camroll146begins torise onthe cam sur face, again raising the link 150 to cause aare-x i traction of the gage. 28; The movement of the gage28 .in' the manneraabo-vve"describediis, for, the purpose of insuringthe removal ofi the chip or scrap cut'frorntheheel'zportionf of the blank. Tothis end, the outer endpor-r i e tion of theigagexis formed; into; a hook as shoWnat-=l-74= Fig. 8) which, when the gage is rotated back'to itsfp'osition on the die block, extends beyond theline offcut'of the die, ;thjelsubsequent retraction of the gage causingthe hook; portion 17 $0 engage and remove thefchipwvhichfalls from thejdie oblock1'22; into a slide 176,- 1

. Retraction of gages 26isaccomplished if rotating the j sha same time that the link causes retractionjof theheelvgage 28. When the connection 180 Th mechanism 1 for rotating the die j'block comprises links 18251 5 and a bell crankl86whichiisiloosea 11y q n d 1 m gs-ev r 114i m t t v the bell crank 186 is alink188which"is.op% .7 a 50 which is coniie t'ed'tt the cellar 130 erated by thebell cran'k148in a manner simi 7 104: togmove the set-screw v10 2 .imvardagainst the lug-106, thus causing men 10f gages 6 aw y a mi l e b Q'Dk-Q The .shaft 104 'isflrotatedby means of a forked -a 1 m 178 which is raised by contact with a connection 180 onthe link 150, ,atthe at actuatii githe as '38 m j isdepresse'd with link the spring 100 j acts t returnithe'jgages 26'invvardly to their j eiidsturnedoutwardly to cult ofi"; the vwaste resultingf; from'flthe dieing-out operations,

l ineansoperab'le' to move any select'dfdie into 1- operative relationto the worlt support, mem-' bers for locating Lf Ql 111. 01 the work-support of theI IIk 188 operates the links 1.82and118at in suchlmanner as to retract: the; pa'wl88, Over the rack 865 At the: endtof-the cycle-of'op-e supported on a rock-shaft. 19.0which is ac-i tuatedby means of alink 192 and a link 194 (Fig; l) opra-tively connectedto the treadle 4-82 Depression of the treadle 48: to initiate operationf of, the die turret simultaneously causes; depression ofthepresserhfoot 30. to

holdthe blank'in position during the. dieing.

:out operation; V

{40 2;-A cutting= machine comprising a-work' Lao out-operation.- When the treadle is released by the Operator, aspring196 operatesto raise thetreadle and withit the link 194, thus'rotating thezlink192 and raising; the presser foot 370 trom'contact with the blank; Having il'lustratedlanddescribed the preferred embodiment of-lthe invention, that which is claimedlas new is L support, apluralityof open dies of;difierent .30 sizesshapeddfordieing; out the heel'ends of' unattached blockedsoles, a carrier; for the dies operable-to move any. selected die, from an inoperative: position to. a position in .operative relation to the work support, members for 1ocating a sole on the work support in alignment with I the sele'cted die, and means die andthework support to perform a dieingsupport, a plurality of open dies or diiierent v sizes adafpt'edfor} dieing outthe-heelends of unattached blocked sol'es, said dies being arranged to" provide for movement of 'any; se .lected dreimmen inoperative positlonto a position in operative relation to'the -workflsup port, members for locating asoleupon the work support-inoperativerelation tofthe selected' die," and 1 means for refi'ectingfrelative movement of thework supportanda selected die to perform a dieing-out operation i 3. "A cutting machine comprising; a-workr support, 1 a plurality of open dies of: different sizes adapted for dieing outthe heel ends of unattachedblocked soles, and'having their in bpfi tir fr ati o th e 'e d d and Imeansifor effecting relative, movement of the bi k'i 'epr ftzah -the-el te die -Hermie support,gaging means; for; positioning an unattached bloeked'sole upon the work; support, a; plurality of open dies of. different sizes adapted fordieingoutthe heel ends of unattached blocked sol es, acarrier for the diesjoperable to move any selected'die from aninoperative position to 'a tposition in operativ1-relation to a sole positioned on the work support, andpower means for reciprocating thecarrier to cause the selected die to perform a, dieing-out operation.

1 -15. In amachine of the/class described,a

. operation on the work. 1 v

6. In amachine oftheclass described,,a work supporting member, a tool-holder constructed and arranged to carryga plurality of tools and movable'toward and awayfrom said member, mea-ns fol-[selectivelypositioning 1. A cutting niachine-comprislng'a Work 'means for lockingthe'selected tool in opera tive position, and means for preventingfopcr ation, of. the machine when' no, one ofthe tools is in positionforoperation on the work.

'7'. In a machine otthe'class described,v a

work-supporting member, a turret-construct ed and arranged to carry a plurality of dies 1 and novahle toward and away from. said member, ,means for selectively positioning oneaof the dies for'operation on the work,

means for locking the die in operative position,.start1ngmean s for initiating areci 1-,

' rocation of; the turret, and means ope'rab e when noone offthe diesis locked inoperative position; for; preventing actuation of the starting means,

8, Ineav machine for operating} on sole blanks, a die block, a turretsupporting a plurality ofdies, a power operated means; for movingv' the turret toward and away from the block, means operable [for J selectively 'moving one otthe dies into operative posi:

" 'tionrelative to the block, means for locking the diein operative-position, and means operatiYe upon failure ofoperation ofitherlock: ing-means to prevent actuation ofithe power operated:means; a

;9 A; machine for; operating. on sole, blanks having, in combinatioma'die, a work supzport, members-forpositioning" a blank on the support, 5 means for. causing relative move.- ment' of'the die and supportto efi'ect 'a trimming operationon the blank, means operable during such relative movement to retract saidjmember'sllinto inoperative position, and

' m an operable to, move oneof said members n such manner; as to; insure. the separatlon actuating the die to perform an operation on a blank positioned onthe support, gages of the triinmed blank from the materia trimmed from the blank.

. 10. In a machine for operating on sole blanks, a work support,yadie, members for,

' blanks, a work support, gages for position ing a blank on the work support, means oper- V able to cause a dieing-out operation on the blank, and means operable to actuate one of the gages in such manner as to remove from the work support the material cut from the blank. v

12. In a machine of the class described,( a die, a die block, means for positioning a I blank on the block, means for causing a dieing-out operation ofthe die, means for reposition to a position in operative relation to the work support, members for positioning a sole upon the work support, means for adjusting the positioning members in accordance with the size of the selected die in order to insure alignment of the sole with the selected die, and means forefi'ecting relative movement ofthe selected die and Work suport to perform I a dieing-out operation upon thesole, Y r

In testimony whereof I have signed my specification. WILLIALI G. STEWART.

name i to this tracting the positioning means prior to the dieing-out operation, means for returning thepositioning means to a point on the blank beyond theoline of cut of thedie, and means for retracting the positioning means over the line of cut in such manner as to remove surplus material from the blank. ,1

13. In. a machine for operating on sole blanks, a die block, a die, means for causing a dieing-out operation ofthe die and die block, a heel gage for-positioning a blank on the block, means for retracting the gage previous to the dieing-out operation, and means for moving the gage subsequent to the dieing-out operation in such manner as to remove the material cut from the blank. 14:. In a machine of the class described, a work support, a heel gage for positioning a blank on the support, the gage having a rack on the lower surface thereof, a shaft carrying a pinion meshing with the rack for eflecting movements of the gage relative to the support, a manually operable plunger constructed and arranged to'adjust the gage to position different sizes of blanks, and means automatically operable to retract the gage prior to an operation on the blank.

15. In a machine for operating on sole blanks, a work support, a die, members for positioning a blank on the support, starting 7 means for initiating an operation of the die? I on the blank, means for retracting the positioning members when an operation on the blank isinitiated, a presser foot for holding f i a the blank one the work support during such time as the positioning members are retracted, and connections between said start.- ing meansand said presserfoot for actuating said'pre'sser foot simultaneously with the starting means.

16. A cutting machine comprising a work support, a plurality of dies of different sizes Gil

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