US2371321A - Waste-collecting system for - Google Patents

Description

March 13, 1945. w, s A 2,371,321

I WASTE-COLLECTINGSYS TEM FOR ROTARY CUTTERS Original Filed Aug. 27, 1941 2 Sheets-Sheet 1 9' fizz/en [or Ernest W. Stacey A orney March 13, 1945. E. w. STACEY WASTE-COLLECTING SYSTEM FOR ROTARY CUTTERS Original Filed Aug. 27, 1941 2 Sheets-Sheet 2 Inventor Erne st W Stacey Patented Mar. 13, 1945 WASTEeCOLLECTING SYSTEM FOR ROTARY CUTTERS Ernest W. 7 Stacey, Beverly, Mass, assignor to United Shoe Machinery Corporation, Flemington, N. J a corporation of New Jersey Original application August 27,1941, Serial No.

Divided and this application Septemher 4, 1943, Serial No. 501375 8.Clairns. (01 12 1) This invention relates to means whereby the chips and other waste from a rotary cutter, as, for example, those employed for rounding or forming to a pattern the soles of shoes, are collected and removed from the vicinity of the cutter. It is of particular utility in connection with such a sole-rounding machine as that disclosed in the application for Letters Patent filed in my name inthe United States Patent Office on August 27. 1941, and bearing'the Serial No. 408,468. Of that case, the present application is a division.

In machines of the character above mentioned. to carry the work through a path which offers an approximation of the form to be imparted to it by a rotary cutter, said work, as asole-blank or a stack of such blanks, is given a compound movement of oscillation and rotation. The blank thus has a movement of translation which shifts it through a considerable distance, and it is so turned that thevarying angle at which it is presented to the cutter causes the chips produced to be thrown off in different directions. This makes it difficult to so associate with the work efficient waste-collecting means which will not interfere with the movement; and also to provide such means which will fully retain the differently projected particles. My invention has as an object the provision of a system which will properly dispose'of the waste produced by the cutter 'in all positions of the work, and which will still permit the free travel of said work past the cutter. To this end; I combine with an oscillatory and rotary work-holder, as one for shoe-soles, and a rotary cutter to which the holder presents the work, an

exhaust-conduit into the mouth of which said work is movable as it receives the action of the cutter. The chips and dust thrown off by the cutter are thus subjected directly to the force of the exhaust, but without interference with the movement of the work, because of lateral eX- pansion of the conduit-mouth. A bafiie preferably assists in the retention. of the waste, it being furnished by a wall which divides from the main exhaust-conduit an auxiliary conduit, through which is removed material which may pass the baifie. The collection of the waste may, therefore, be practically complete.

A particular embodiment of the invention is illustrated in the accompanying drawings, in

which Fig. 1 is a partial vertical section, taken in a plane from front to rear of a sole-rounding machine in which my improved collecting system is included, this section passing through the forismounted to oscillate a carrier-arm '32, in the ter 36.

the post 30.

ward portion of the cutter-carrying arm and be; ing viewed from the right of the machine;

Fig. 2 is a broken side elevation, also taken from the right and especially showing the mountingof the exhaust-conduit; and

Fig. 3 is an enlarged horizontal section on the line IIIIII of Fig. 2, and including the entire exhaust-conduit.

In the sole-rounding machine of the previously mentioned application, there is a frame IU,-upon which, about a vertical tubular shaft l2, a workcarrier I4 is mounted to oscillate under the 'infiuence of gearing A and connected mechanism B. Rotatable in lower and upper arms l6 and H3, respectively, of the carrier 14 are vertical shafts 2D and '22. The shaft 20 is driven through the gearing A, and has mounted upon its upper extremity a pattern 24. The'shaft 22 carries at its lower extremity a clamp 25, driven from the gear ing A through the shaft l2 and gearing C in synchronism with the pattern. Through a rod 26 within the shaft l2 and through an inter mediate lever 28, the claim) may be lowered or raised to secure or free for removal one or more sole-blanks S, or other work-pieces. The compound movement of oscillation and rotation of the clamped work is of such a character, that any point at the periphery of the blank is'moved through a path which roughly corresponds to the contour of the pattern 24.

Rising from the frame H], at the right workcarrier I4, is a tubular post 30, about which outer end of which a vertical shaft 34 is rotatable, it having fixed upon it a toothed rounding out- The shaft and cutter are constantly driven during the operation of the through gearing D from a shaft 38 rising through The carrier-arm may be oscillated about the post to shift the cutter between the inactive position of Fig. 1, which permits the application to and removal from the pattern 24 and clamp 25 of the work, and the active position of 3, in which the rounding of the work may take place. This is effected under the control of the operator by mechanism indicated at E. This mechanism is joined to the carrier-arm by a link 40. The approach of the cutter to the work and'the precise contour which it imparts thereto are determined by contact with the periphery of the pattern 24 of a gage-roll 42 mounted upon I the carrier-arm.

In the action of the cutter'upon the work, a considerable quantity of chips and dust are produced, which must be disposed of. For this purof the machine system. The mouth 46 extends from a side wall 56 of the conduit, close to which the cutter 36 is carried, to the opposite shorter side wall 58 curved inwardly and rearwardly to the passage 41. The width of the mouth is such thatinall positionsoi.

the oscillating and turning pattern, clamp and? work-pieces, these may move across and into the conduit without interference. Yet for the varied angles at which the work is presented to the cutter, the waste removedfrom'the blankis pro- .iected directly into the conduit, remaining under the full influence of. the. exhaust.

lithe conduit-wall 56- extendsas. close to. the cutter 36 at 51 and-as far forward as possible, while .remainingfree'from contact with'the turning: work, to retain'the waste carried by said cut fier in the direction of its rotation. Further, to. preventthe waste from escaping past the wallportion 51-, there extends alongthe wall SB an ihner. wall 60. joined to. the upper and lower walls 44. and. forming an auxiliary exhaust-passage B2. joining, the. inner passage 4-1 at. The outer. end of the wall 60, at. 66, lies-.in-close proximity. totheperiphery of. theecutter, which turns from the work inwardly toward it; Consequently, this wall' servesas a..bafiie;.-theagreater. part of the waste thrown :inthis-direction comingyin contact.

with it. andbeing retained within the; main pas-- 53%6'343430 be.-.disposed of. through thepassage 41. Whatever passes the biaflle; comes under: the; in-= fiuence f theexhaustthrcugh the narrow auxiliary passage, intowhichthe air is drawn at azhigh velocity. This. material'is, therefore, disposed. of through'the passages 62: and 54, together. with the greater portion of: the waste received throug'hthe main passage.

Having described-my invention, what-I claimaas' new'anddesire: to. secure by Letters Patent of the United States is:

1. In combination, an oscillatory. and. rotary worbholder, .a rotatable cutter to which the hold er presents the work; and an exhaust-conduit into sole-holder enters-and across which it moves, and

a cutter-rotatablein the conduit to act upon a sole in the holder.

4.. In.combination,. an exhaust-conduit having a wall dividing: it. into a main exhaust-passage and-an auxiliary exhaust-passage, a work-holder movable in the mouth of the conduit, and a. cutter to whichthe holder presents the work, said outten being. situated. with. its periphery. in. close proximity totheend ofthedividing'wallp 5.. In combination,. an exhausteconduit having, a. wall. dividing-it into a. main exhaust-passage. and: an auxiliary. exhaustepassage, awork-holder movable inthe mouth of the-conduihandhhutter. rotatablewithin. the conduit and to which. theholder presents .thework, theoperating. periphery. at said cutter turning, from. the workintosther conduit andtoward-theend ofthe: dividing wall. 6. Incombinatiomta; carrier. .i'nwhich are two. exhaust-passages. a. dividing wall between the passages..furnishing. a: name, a cutter. rotatable upon the carrier at. the outer end of; the. bailla, aznd a'movabl'e work-holder co-operatingwiththe cutter... ,Incombination, a carrier furnishing amain, exhaustepassage: havingalaterally expanded. mouthandanauxillary. exhaust-passageacutter:

1 rotatable upon the carrier between. the openings of themain and; auxiliary passages, anda works-- holder co-operating with the cutter and, movable: in the mouth of; the main. passage.

8: In: a sole-rounding.machine,-an oscillatory carrier-aim furnishing: a main, exhaust-passage having-alaterally,- expanded mouth-and an auxiliary passage, a cutter'rotatable uponthe 03111 163. arm, .a baflie betweenethe passages acting. to retain. waste produced: .by thecutter in, the main-.passage, and. an oscillatory and rotary sole-holder movableinthe mouthof thezmain passage. I

ERNEST. W. STACEY.

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