US1429310A - Stock-cutting machine - Google Patents

Description

E. WINKLEY.' STOCK CUTTING MACHINE. l `APPL|cAT|oN man MAR. 2.1, 191.9. Y

1,429, 3 l 0g Patented Spt. 19221 'a l l "fil, v L I f@ G y E. E. WINKLEY.

. STOCK CUTTlNG MACHiNE. I v APPLICATION FIED MAR. 21,1919. 1 429,310, PatentedSept. 19, 1922.

2 SHEETS-SHEET 2.

To all whom t may concern:

Patented sept. ie, i922.

maan@ EEAsTUs E. WINKLEY, E LYNN, MASSACHUSETTS, AssrGNoR To UNTED sHoE` MACHINERY CoEroEATIoN, 0E rn'rEEsoN, NEW JERSEY, A. CoEro'EA'rroNoE NEW JERSEY.

f STOCK-CUTTING I'mAipplication led `1\/Iarc]fr21, 1.919.-,y Seria1`Nof284i70- f I Be it known that/I, ERAsTUs E. VVINKLEY, a citizen of the -`United' States, `residing yat Lynn, in the 4county of 'Essex and State of Massachusetts, have. invented.. certain new and useful' Improvements in" StocleCutting Machines; and. I do hereby declare the following to be a full, -cle'anandex'act description' of the invention, suchas will enable others skilled in the art to jyvhich qit appertains to makel'anduse the samav "This invention relates to machines, in

f which pieces are successively cut from strips 011 sheets of material ,ivhichare fed to the cutting instrumentalities, and more particu-tk larly to means forejecting from the liney of feed, the portion or Waste-end of eachstrip which remains after theflast piecehas been f y theapplicants Letters'Patent of the United j cut therefrom.

.The main object ofthe invention isfto` provide positive and reliable means for insuring the removal of'such Waste-'ends or remaining portions from the line of feed of the succeeding strip. l

Tith Athis lobject in view Hthe present invention contemplates the provision,in. a

' stock cutting machine constructed and Varrangedtocut pieces or blanks successively from sheets of material, of means for dis-V` placing, in the plane of the sheet being oper-l ated upon, the Waste portion remaining at the lrear end ofthe sheet after the last fullsized piece has been cut therefrom. In itsy preferred form, the invention isembodied in a machinevhavlng a reciprocating knife,

and comprises an ejector blade movablel f with the knifev and constructed andarranged to be forced' into the strip together With't-he knife, andcontrollable meafnsjoperating onlyV after the strip has been exhausted to a predetermined extent, to cause an `actuation ofI` the ejector at the completion of the succeeding cutting operationr to remove the remain-V ing waste-end from the line offeed.v v v The invention further .consists in' other novel features of construction and arrange ment ofparts/Which Will be hereinaftery described and defined in the ,appended claims. The features ofthe ,inventionv will be readily understood from an inspection Vof partly insection. showing the Waste-end ejec-y tor and the conttolling devices therefor;

Figs.. 3, 4 and 5 are lvievvssimilarl to'Fig.' 2 showing different relativepositionsv of. the parts; F1g.'6 1s asectional elevation taken f ontheline v6-,6l of Fig. 2. n w

71th. the exception of the waste-end ejec` tor andthe controllingdevices therefor hereinafter described',.tl ie machine. illustrated inz.k Fig. l .of the `drawings is 'similar tothe \ma. chine illustrated, deSQribedandcIaimed in Statesfor a stool; cutting-machine Vo.,y 1,352,492, datedfSeptember 14, 1920, As des.. scribed in said patent,` thestrps of'sheet material which are contained in a magazine.

j S .are successively` Withdravvntherefrom andv fed intermittently by means of la doglO across a cutting bed 12, .The-feed-dog l0 is yield-ingly vadvanced fandv 'the 'feeding move# ment of the stock `is arrested ,by meansof al gage .14 Which thus determines the lengthof eachfeeding movement of the strip. A rev-80 ciprocating-.knifel that `isrnoun'ted` in facutter head 18 cooperates Iwith ther cutting. bed l2 .to cut thel .strip into short r,pieces suitable for use ras heelklifts andthese pieces are automatically .transferred 'from the cuti 85 ting bed to a suitable receptaclenotshovvn in the drawing. The gage -lltisadjustable i toward and Vfron'ithe cutting'bed to varythefl l i .length of the pieces cut'from the zstrip.

YWhen a strip .Whichis{being/operated 90 Vupon has become so far exhausted that. the portion remaining after la piecefhas -been y vsevered by the knife istoo shortto producei lanother piece of theyrequired" length, this fact is detected Lby means ofafeeler QOWhichE 4 patent above mentioned, the following pro? vision is made for this purpose. The strips are fed from the' magazine beneath a plate 22 projecting from the front thereof, and in order that each strip may be supported when it has been exhausted to such an extent that it has advanced beyond the bottom of the magazine, two members in the form of plates 24 and 26 (Fig. 6) are employed, these plates having rabbeted inner edges forming guideways for thelateral edges of.

the strip. The plates 24 and 26r are supported on levers 28 (Fig.` l) which are so constructed and arranged, that at eachdownward movement of the cutter-head 1 8, the plates are moved away from each other so that the remaining portion of the strip is momentarily deprived of their support.

During the normal operation of the machine, the strip is supported at the time the plates 24 and 26 are withdrawn therefrom, by means of the feeler 20. ihen the end of the strip has advanced beyond this feeler, however, the movement of the supporting plates just described, leaves the waste-end entirely unsupported for the purpose of permitting it to fall from the'line of feed and thus be discharged from the machine.

AIn the machine of said patent., in addition to the above described provision for the` escape of the waste-end, a 'spring pressed plunger is mounted on the cutter head and. is adapted to descend through an opening in the plate 22 and to force the wastefend downwardly at the moment it is deprived of the support of the plates 24 and 26. This plunger is similar in construction to a plunger 3() which is mounted upon the cutterliead of the present machine and which performs'a different function as will be hereinafter explained.

ln the present machine, in .order to insure against any possibility of the waste end portion adhering to the cutting bed, after the last full-sized piece has been cut from the strip, positive means is provided to act immediately after said last cutting operation to remove. the remaining waste end from its position adjacent the knife and in the linel of feed of the succeeding strip. This is accomplished by pushing the waste end away from the knifev substantially in the plane of the strip and in a direction opposite to the direction of feed. Such an operation will effectively detach the severed edge of the waste-end from the groove in the cuttingbed if that edge has been pressed therein by the knife, and will move the waste-end clear of the cutting-bed at a time in the cycle of operations when the supporting plat- es 24 and 26 have been swung apart. rlhe waste-end then being entirely unsupported will drop from the line of` feed and be dis.- charged from the machine.

The means for removing the waste-end, .comprises an ejector 32, consisting of a linger 34, which is carried by the cutter head 18 and is provided at its free end with a thin flat blade 36 which normally lies closely ad? jacent the knife. The finger 34 is fixed to one end' of a shaft 38 that is mounted to turn in a bearing on the cutter head' so that the ejector blade may be swung away from the knife forthe purpose of displacing the waste-end in the plane of the strip. At the opposite end of the shaft 38 is fixed an arm 40 which is :acted .upon by a spring 42 that tends to pull the arm upwardly tooperate the ejector. The arm 40 is normally held depressed against the tension of the spring by j means of ajpawl 44, so that one face of the blade36 is held in contact with the beveled face of the knife on the side toward the magn azine 8. The arrangement is such thatthe bottom of the blade 36, which is sharpened to a knife edge, is positioned only slightly above the cutting edge of the knife. The pawl 44 is fixed to a shaft 46 that is mounted to turn in a bearing on the cutter head and is normally held in engagement .with the arm 40. on the ejector shaft 38, by means'of a spring 48 which connects the arm. 40 and the pawl 44. A

By means of the above construction and arrangement of the ejector, the blade 36 will be forced into the strip together with the knife ateach downward movement of the 110 .cutter-head. Thuswhen the knife has de scended and severed a piece from the strip,

that is fixed to the pawl shaft 46. The trip y rodv 5U isadapted to be operated when the cutter head descends, by being brought Vinto engagement with a block 54v which projects upwardly from the plate 22,

1n order that the ejector may be operated i3@ only at the vproper time, the `trip ,rodv 50 is so controlled that it is normallyrendered inoperative ,upon each down-ward movement of the cutterheadoperated, l`on the ,succeedingdownward movement ofthe cutter-head, ,to disengage thepawl 44 from the arm 40.1w f

The means for thus controlling` `the triprod' comprises the springfpressed plunger 30hereinbefore referred to, which is con-I nected-by meansfof a link 56 with the triprod.l The link 56 causesthetripfrod '50 to be swung to one sidewhenever the plunger meets. with: an unyielding obstruction y as it,

moves downwardly with the cutterfhead, so that the rod will not' 'bein alposition to .engage the block 54. 'l

When, on the' downward movement of the cutter-head there is present beneath 'the plungerBO a portion of a stripwhich is long enough to be supported by the feeler20, the

.downward movement of the ,plunger` will ibe arrested by the strip thus causingthe triprod 50 to be: swung into the inoperative position-,shown in1Fig.3,7and the pa'wl 44'remaining in engagement with the arm 40, the

tinued downward movement ofthe plunger, the,.triprod 50 whichwill: then remain inf-` line with the block 54, .as shownl iii-F ig. 4, will strike the block, andlthe pawlf44 will be swung out of engagement-withthe `arm 40,:thus permitting the spring 42 to operate the ejector, as shown in Fig.'5,to positively remove the waste-end from the .line of feed.

On the succeedingupward movement :of the cutter-head the ejector. is restored .to normal position by means of a rod'58, which depends from aifxed part oftheframe of the machine. and'is maintained withits lower4 end in alignment with the arm40by means,K

of a luge() on the cutter-head, .through which it extends loosely.` When the ejector VVis restored to normal vposition `it "isf held:

therein by means of the-paw'l44fwhich again swings into engagement with the ejector arm40.

It will be seen thatithe--meohanism which has been described is `of simple construction and is unlikely '.to get out of order.AV Morefl over it is positive in action andinsur'esttheii removal 'of all waste-ends from the line of feed andxtheir discharge from theimachine.:

The invent-ion is not,'in general, limitech.

Whem however, ythe. :striphas become so far exhausted thatv theremaining portion istoo short. to. produce another full sized piece,.the trip-rod is ,then

vteria toVv the embodiment `thereof.ihereinbefore de-l scribed and illustrated in `the accompanying ous other forms within the Scopey of. the apf pendedclaims., Having .thus explained Vthe-nature and.

tail the preferredfolfnl thereof, that 'which'.l is claimedas ,newis-.ff ,f-

. LA; .iStock-cuttingmachine having, in combination, mean's lfor cuttingipieces suol- Iscope of the inventionanddescribed inde-1 cessively fromasheetlof material, and 4means forl displacing in the-plane,ofthersheet bep-f ing operated upon; the.` portion remaining f after the last piece has been ycut fromsaidr` sheet., 'f

cessively from a -sheetjofmaterial fed there.- to, andmeansyfor ldisplacing in a-f-directionthe portion remaining, after the last piece hasbeencut Vfrom the sheet.`

3. A stock-cuttingmachineA having, in". combination, a, reciprocating knife 'for cutting, pieces successively. from` sheets. of: `ma- 'stock-cutting 1. machine having,V ,in vcombination, means forcutting pieces suc-ff `opposite,tothe direction of feed. of the'sheet terial, and -means arrangedto engage: the

` severed 2 edge of? the por-tion; remaining. :after` thelastcutting operation on each sheet 4and! to be moved transversely )fto rthe. plane ofy the knife to displace said portion.

4. Y stock-'cutting machinev f having, in l combination, 'af reciprocating 'knifeffor -.cut

ting

lan yejector movable with the .knife and normally' lying adjacent f one face thereof piecesv successively from a sheet of y may so thatJ it awill enter',tlie.-material.iwitli the knife .during the cutting stroke of the lat ter andI arranged to be moved .away from ythe knife to displace. the portion remaining after the last piece ihasbe'enycut vfrom the sheet. v,

5. A stock-cutting `machine having,y l inil`v combination, means; for/,cutting pieces suc-v cessively from sheetsof material, yandn'ieans acting upon; exhaustion beyond alpredetermined extent ,of the; sheetrbeing operated-` -iio upon to displace substantiallyinthe planei of said sheet the portion thereof .remainingi` after the last.cuttingoperation.has' been performed thereon. =4 f ,6. A stock-.cutting machine having, in'

combination,l a knife for `ci'itting .pieces `sucf f cessively-from sheetsofmaterial, a normally restrained springyactuated ejector,.and au-V rence of a predeterminedv condition for causiing thezoperation ofthe ejector.` to remove a portionoflthef sheet which `is beingveoperfyly i 1125 :stock-cutting;.machine having,- in`i atediupon.

tomatic ymeansy dependent upo'nfthe occurcombination, means for cutting pieces sued." cessively from sheets ofimateriahan ejector j movable in a direction; transverse? to. the

severed' edgeof .eachsheejand 'means acting.;

upon exhaustion beyond a predetermined'er;n tent of each sheet to cause the ejector to removey the remaining portion thereof.

8. A stockcutting machine having, in

combination, means for cutting'a series of constructed and arranged to operate onlyafter the last full-sized piece vhas been cut from thesheet to engage the remaining Waste portion. to remove it from the line of feed of a succeeding sheet.

10. A stock cuttingmachine having, in combination, means for cutting lpieces successively from' al sheet of material, intermittently operating feed mechanism for -advancing the sheet to the cutting means, and means operativeoii'ly when the last piece is cut and acting positively to remove the remaining Waste'end portion of the sheet from the path of the incoming sheet.'

11. A stock cutting machine having, in

combination, means for cutting blanks successively from a sheet of material, means for determining when the sheet of material has become so far exhausted that theremaining portion is too short to produce'another Afull-sized blank, and means for dis` placing substantially in the plane of the sheet the remaining Waste portion of the sheet.' A y 12. A stock cutting machine having, in combination, a reciprocating knifefor cutting a blank vfrom a sheet of material, an ejector movable With the knife and normally lying adjacent onek face thereof so that it will enter the material With the knife during the cutting' operation of the latter and arranged to be moved away from the knife to displace the portion of the sheet remaining after the cutting operation. 13. A stock cutting machine having, in combination, means for cutting a series of blanks successively `froma sheet of material, and normally restrained spring-actuated means rendered operative only- When the last full-sized blank has been cut from the sheet for displacing the remaining Waste portion from the line of feed of a succeeding sheet. Y 4

14. A stock cutting machine having, in combination, intermittently operating mechanism for feeding the stock ina series of ingenio the stock fed thereto, and means operating l after the last full sized piece has been cut from the stock to eject the remaining Waste portion thereof from the line of feed ofa succeeding piece of stock.

15. A stock cutting machine having, in combination, means for severing pieces successively from sheet material, and rmeans movable in the plane of the sheet for displacing the-Waste portion remaining after the last piece has been cut from the sheet.

- 16. A stock cutting machine` having, in combination, means forv severing pieces successively from sheet material, and means operating in the cut produced by said severing means for displacing the Waste portion remaining after the last piece has been ont from the sheet. Y

17. A stock cutting machine having, in combination, means for severing pieces'from a strip of sheet material by successive transverse cuts extending from edge to edge thereof, strip feeding means, means for iiisuring that the pieces be of equal length,

and means operating inthe path of feed' for removing from said path the Waste portion remaining after the feeding means has advanced the strip to such position that apiecel of the required length cannot be produced.

18. L stock cutting machine having, in

combination, means for lintermittently feeding a strip of sheet material, a cutting bed,

a knife cooperating therewith for severing pieces successively from the strip during the the last piece has been cut from anyen gagement it may have with the groove' formed in the cutting bed due to theoperacessively from a sheet of material inter-` mittently fed thereto, means for detecting exhaustion lof the sheet beyond'la fpredetermined extent'7 Waste endfejecting means adapted to be moved into ejecting engagement with the stock at each sheet cutting operation, andan actuating mechanism for said ejecting means, the operation of Which is controlled by exhaustion of the stock as determined by said detecting means.

20. A stock cutting machiney having, in

combination, a reciprocating knife for sever ying pieces successively from a sheet of material, Waste end ejecting means reciprocable into ejecting positionv with said knife, actuating means for said'ejecting means normally restrained from operation, and means for releasing said actuating means after the last fullesized piece has been cut from the sheet.

combination, means for cutting pieces Suc-v cessively from a sheet or" material, intermittently operating feed mechanism for ad vancing the sheet to the cutting means, and means operating concurrently with the last cutting operation producing a full-sized piece, to engage and remove the remaining waste end portion of the shet from the line l0 of feed.

22.A stock cutting machine having, in

combination, intermittently operating mechanism for feeding thestock in a. Series of equal steps,` periodically operating `cutting means for cutting pieces of equal sizes from the stock fed thereto, andl means operaping after the last full-sizedv piece' has been cutV from the stock toengage the severed .edge n, of the remaining Waste'end and remove it from the line of feed. y f

ERAs'fTUsvn-WiNKLEY.

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