US2467387A - Apparatus for progressively advancing workpieces through working zones - Google Patents

Description

3 Sheets-Sheet 1 P 1949- J- s. .KAMBORIAN I APPARATUS FOR PROGRESSIVELY ADVANCING WORKPIECES THROUGH WORKING ZONES Original Filed June 17, 1944 v [ra e/14 I M S/fi'marwavn April 19, 1949. 1 J. 5. KAM BORIAN 2,467,387

APPARATUS FOR PHOGRESSIVELY ADVANCING Y WORKPIECES THROUGH WORKING ZONES Original Fi'led June 1'7, 944

3 Sheets-Sheet 2 APPARATUS FOR PROGRESSIVELY ADVANCING April 19, 1949- O J- 5. KAMBORIAN 2,467,387

. WORKPIECES THROUGH WORKING ZONES Original Filed June 17, 1944 3 Sheets-Sheet 3 J0 J W $3 -Zizuerzzfan Maj zik wa/zpv Patented Apr. 19, 1949 APPARATUS FOR PROGRESSIVELY ADVANC- ING WOBKPIECES THROUGH WORKING ZONES Jacob s. Kamborian, West Newton, Mass.

Original application June 1'7, 1844, Serial No. v540,868. Divided and this application October 16, 1948, Serial No. 208,810

18 Claims. (01. 12-1) This invention pertains to apparatus for progressively advancing a work piece through a working zone while it is being acted upon by appropriate agencies, and in particular while the work is subjected to tension in a direction transverse to its general path of travel, the present application being a division of application for Letters Patent Serial No. 540,868, filed June 17, 1944. While of broader utility, for example for use in shoe lasting or other machines which do not employ cement or other adhesive, the invention is herein illustrated by way of example as embodied in a machine for applying adhesive to the lower marginal portion of a lasted shoe upper and also to a sole element of the shoe, and wherein one of the'elements between which the work is gripped is a cement-applying nozzle.

One object of the invention is to provide workadvancing means operative to stress the work transversely of its general direction of travel as it passes through the working zone. A further object is to provide novel means operative progressively and uninterruptedly to advance a piece of sheet material, such, for example, as the margin of a shoe upper while the material is held transversely taut and in contact with an abutment member either stationary or movable. A further object is to provide work-advancing means so combined with a rotatable work-guiding element that the work-engaging surfaces of the advancing and guiding elements may be very closely juxtaposed. A further oblect is to provide a novel work-advancing roll having a resiliently yieldable work-contacting face.

Other and further objects and advantages of the invention will be pointed out in the following more detailed description and by reference to the accompanying drawings wherein Fig. 1 is a side elevation, partly in vertical section, illustrating an adhesive-applying machine embodying the present invention;

Fig. 2 is a fragmentary front elevation of the apparatus of Fig. 1;

Fig. 3 is a fragmentary elevation of the lefthand side of the machine, to large scale, and partly in vertical section, showing the parts in readiness for the introduction of the work piece;

Fig. 4 is a view similar to Fig. 3 but showing the parts in the operative position of applying cement to a shoe: and

Fig. 5 is a fragmentary vertical section to large scale, showing details of the work-guiding and feeding means.

Referring to the drawings, the numeral I designates a hollow base or column having a top 2 member 2 which may or may not be integral with the vertical side walls of thebase, the base constituting a protective case for certain operative parts and having within it a chamber 8, preferably having a door aperture at i normally closed by a hinged door 5 having a locking handle 6. A rigid frame II8 is-mounted on or integral with part 2. This machine frame H8 is provided with horizontal guideways for a slide member IIt which supports the applicator nozzle 80.

The applicator nozzle is supplied with adhesive through a pipe 84 leading from a pressureregulating device 85 having the regulating handle 86, the fluid being supplied to the pressure regulator by means of a pipe 88 to which the fluid is delivered from the container 4| by a pump 88 housedwithin the base I.

The slide H8 is actuated by a treadle (not shown) which moves a vertical rod 0 which is connected at its upper end to one arm of a bell-crank lever (Fig. 1), the other arm I20 of which is pivotally connected to the slide H6.

The slide is urged rearwardly by a spring II'I",

one end of which engages a collar on the treadle rod H9, and the other end of which rests upon a portion of the machine base.

The motor I08 is mounted within a chamber in the frame I I3, and has a power delivery shaft I08 (Fig. 1) provided with a pulley I2I which receives a belt I22, which drives a pulley I23 fixed to shaft I24 (Fig. 5) mounted in bearings I25 carried by the machine frame. This shaft I24 is inclined downwardly and forwardly, as shown in Figs. 1 and-5, and is provided at its forward end with a roll I26 having a rim I21, preferably of some yieldable material, such as rubber or a rubber composition, synthetic rubber or the like. Preferably this rim I2I has a helical rib and is of frusto-conical shape, the inclination of the axis of the roll I26 being such that the work-engaging element of the roll, that is to say that portion of the roll which contacts the work, lies in a vertical plane T, T (Fig. 5) and parallel to the vertical work-engaging face 5| of the applicator nozzle 30. The shaft I24 is preferably tubular, and within this shaft is arranged a support I28 which is keyed at I29 to a rear bearing I25 so that the support I28 can not rotate. A spring I30 is secured to the rear side of bearing I25" and bears against the rear end of the support I28, so that the support is permitted to yield rearwardly. The forward end of the support I28 is bifurcated to provide .vertically spaced arms I8I, and between these armsis mounted a work-engaging guide roll I82 fixed in the arms ISI.

mounted to turn freely on a vertical pin I33 The diameter of the roll I32 is such that its work-contacting surface is substantially in the plane of the fan ii of the nozzle when the work is being operated upon.

When the margin W (Fig. 4) of a shoe upper U is gripped between the peripheral surface of the roll I26 and the applicator nozzle 30, as illustrated in Fig. 4, the rotation of the roll with its helical rib imparts a feeding or advance motion to the shoe, relatively to the nozzle, and at the same time creates a distinct upward pull or drag on the material of the upper, tending to draw it snugly about the last-L. Upward motion of l the shoe as a whole is opposed by the applicator nozzle 30, whose lower surface engages the exposed surface of the sole member S. As illustrated in Fig. 4, the mechanism is being used for the application of cement to the inner surface of the wrapper and to the middle sole of a force-lasted shoe, but obviously it may be Similarly used for applying cement to the inner surface of the upper and to the insole of a shoe of more conventional type.

I claim:

1. In a shoe-working machine in combination, members operative to engage opposite sides respectivelyof the marginal portion of a shoe upper, one of said members having a normally stationary work-engaging surface and the other being a frusto-conical roll having a helical rib on its conical surface, the axis of the roll being so arranged that the work-engaging portion of the roll is substantially parallel to the work-engaging surface of the other of said members, means for rotating the roll, the roll having a hollow shaft, work-guide means, and a support for the work-guide means passing through said shaft.

atively engages the work being parallel to the work-contacting face of the abutment, the beveled peripheral face of the work-advancing roller being of resiliently yieldable material and having a circumferential, helical rib, the workcontacting face of the abutment member being smooth and substantially rigid, and means for rotating the work-advancing roller.

3. In apparatus wherein a work piece is advanced uninterruptedly through a working zone, means for advancing the work piece comprising parts operative to engage opposite sides, respectively, of the work piece, one of said parts being an abutment member having a substantially flat work-contacting face and the other of said parts being a rotatable work-advancing roller, the roller being of frusto-conical shape having a peripheral work-contacting face, that element of said peripheral surface which at any time operatively engages the work being parallel to the work-contacting face of the abutment, the beveled peripheral face of the work-advancing roller being of resiliently yieldable material, and means for rotating the roller.

4. In apparatus wherein a work piece is advanced uninterruptedly through a working zone,

means for advancing the work piece comprising parts operative to engage opposite sides, respectively, of the work piece, one of said parts being an abutment member and the other of said parts being a rotatable work-engaging roll having a peripheral work-contacting face, a rotatable shaft on which the work-advancing roller is mounted, and means for turning the shaft, the shaft being tubular, and a part within the shaft carrying a support for a guide roll arranged closely adjacent to one end face of the work-advancing roller. 5. In apparatus wherein a work piece is advanced uninterruptedly through a working zone, means for advancing the work piece comprising tively, of the work piece, one of said parts being a normally stationary abutment member having a substantially flat work-contacting surface and the other of said parts being a rotatable workadvancing roller having a beveled work-engaging peripheral face, a rotatableshaft and means for turning it, the axis ofthe shaft being inclined to the plane of the flat work-contacting surface of the abutment member at substantially the same angle as that between the beveled peripheral surface of the work-advancing roller and the axis of the latter, the work-advancing roller being fixed to one end of the shaft and having within it a chamber open at the small end of the roller, 8. guide roll arranged to turn about a fixed axis parallel to the work-contacting face of the abutment member, and means within the chamber in the work-advancing roller for supporting the guide roll.

6. In apparatus wherein a work piece is advanced uninterruptedly through a working zone, means for advancing the work piece comprising parts operative to engage opposite sides, respectively, of the work piece, one of said parts being an abutment member having a substantially flat work-contacting surface and the other of said parts being a rotatable work-advancing roller, the roller being of frusto-conical shape having a peripheral work-contacting surface, that element of said peripheral surface which at any time operatively engages the work being parallel to the work-contacting faceof the abutment, a work-guiding roll arranged adjacent to the smaller end of the work-advancing roller, the guide roll turning about an axis parallel to that element of the work-advancing roller which at any time operatively engages the work, the diameter of the guide roll being such that its outermost peripheral element is normally substantially in'the plane of the work-contacting face of the abutment member.

7. In apparatus wherein a work piece is 'advanced uninterruptedly through a working zone, means for advancing the work piece comprising parts operative to engage opposite sides, respectively, of the work piece, one of said parts being a normally stationary abutment member and the other of said parts being a rotatable workadvancing roller, the roller being of frustoconical shape having a peripheral work-contacting surface, a work-guiding'element disposed adjacent to the smaller end of the work-advancing roller, and means so supporting said guide element that it may yield resiliently axially of the workadvancing roller in response to pressure of the work. 8. In apparatus wherein a work piece is advanced uninterruptedly through a working zone, means for advancing the work piece comprising parts operative to engage opposite sides, respecparts operative to engage opposite sides, respecstantially paralle l to the work-contacting face of the abutment member, the guide roll being disposed closely adjacent to the small end of the work-advancing roller, a non-rotatable supportfor the guide roll extending through the tubular one of said parts being member having two work-contacting faces disposed in planes substantially perpendicular to each other and the second of said parts being a rotatable, work-advancing roller, said parts being movable toward and from each other permit entry of the work. between them, means urging said parts relatively toward each other thereby to grip the work between them, the roller being of frusto-conical shape having a peripheral workcontacting surface, that element of said peripheral surface which at any time operatively enshaft of the work-advancing roller, said support being slidable axially of the tubular shaft. and a resilient abutment for the support, whereby the guide roll is capable of yielding in response to work pressure.

9. In a shoe working machine, in combination, cooperating parts operative concomitantly to engage the inner and outer surfaces respectively of the marginal portion of a shoe upper assembled with a sole member upon a last, that one of said cooperating parts which engages the inner surface of the upper margin having a normally stationary, substantially vertical work-contacting gages thework being parallel to one of the workcontaeting faces of the stationary abutment, means for rotating the roller, the peripheral face of the work-advancing roller having a helical circumferential rib operative, as the roller turns to apply stress to the work at a point opposite to said abutment and in a direction substantially perpendicular to the direction of work advance, the second work-contacting face of the stationary abutment being constructed and arranged to oppose movement of the work piece as a whole, in response to said stress.

12. A shoe working machine designed to apply 'up-drafting stress to the margin of a shoe upper,

* assembled with a sole member upon a last, said face, said cooperating parts being relatively movable toward and from one another, means urging said parts toward each other thereby to grip the upper-margin between them, that one of said cooperating parts which engages the outer surface of the upper-margin being a downwardly tapering frusto-conical, roll having a helical rib on its conical surface, the axis of the roll being so arranged that the work-engaging portion of the roll is substantially parallel to the work-engaging face of the first-named of said cooperating parts, and means for rotating the roll in a direction such that the helical ri-b exerts up-draftin stress on the upper-margin.

10. In a-shoe working machine, in combination, cooperable parts operative concomitantly to engage the inner and outer surfaces, respectively, of themargin of a shoe upper assembled with a sole member upon a last and to impart up-drafting stress to the upper while advancing the work uninterruptedly, the first of said cooperating parts having an element engageable with the bottom of the sole member to oppose upward movement of the shoe as a whole, said first part also having a smooth, substantially flat face engageable with the inner surface of the uppermargin, the second of said cooperable parts being a rotating, work-advancing roller of frusto-conical shape having a peripheral face engageable with the outer surface of the upper margin, that element of said peripheral face which at any time operatively engages the work being parallel to the flat face of the first of said cooperable parts, the peripheral face of the work-advancing roller having a circumferential helical rib designed, as the roller rotates, to exert up-drafting stress upon the upper margin, and means for rotating the roller.

11. In apparatuswherein a work piece is advanced uninterruptedly through a working zone, means for advancing the work piece comprising cooperable parts operative concomitantly to engage opposite sides respectively of the work piece, the first of said parts being a stationary abutment machine comprising means engageable with the bottom surface of the sole member to limit upward movement of the shoe as a whole, a guide element engageable with the outer surface of the shoe upper, a part engageable with the inner surface of the upper-margin, and a part engageable with the outer surface of the upper-margin, said parts being separable to admit the margin between them, means urging said parts toward each other so as to grip the margin between them, the part which engages the outer surface of the margin being a frusto-conical, downwardlytapering rotating roll operative incooperation with the other of said margin-gripping parts, to exert upward stress upon the marginal material.

13. In combination in a shoe working machine, an abutment member having a surface for engagement with the inner surface of the margin of a shoe upper, asssembled with a sole member upon a last, a rotating work-advancing roll engageable with the outer surface of the uppermargin, the abutment and roll being separable to. admit the marginal material between them, means urging said abutment and roll relatively toward each other, thereby to grip the margin, the roll being frusto-conical and downwardly tapering'and having that portion of its peripheral surface which contacts the work substantially parallel to that part of the abutment member which at any instant contacts the work,,the roll having a ribbed periphery and being operative, in cooperation with the abutment, as the work is advanced, to apply up-drafting stress to the upper margin, and means operative to resist upward movement of the shoe as a whole.

14. In apparatus wherein a work piece, of flexible sheet material mounted upon a form having a substantially fiat bottom surface, is advanced uninterruptedly through a working zone while stress is being applied to the margin of the work piece in a direction away from the bottom surface of the form thereby to draw the work piece snugly about the form, in combination a part disposed to engage the inner surface of the margin of the work piece and which is operatively positioned over the bottom surface of the form, and a cooperating'part which engages the outer surface of the margin of the work piece, said cooperating parts being relatively movable to 7 admit the margin of the work piece between them, resilient means urging said cooperating parts relatively toward each other thereby to grip the marginal material between them, the second of said cooperating parts being a frusto-conical, downwardly tapering roll, means for turning the roll, means operative to limit upward movement of the form in response to upward stress exerted by the roll upon the marginal material, and a guide engageable with the outer surface of the work piece at a point substantially in the vertical plane of the bite of said cooperating parts.

15. In a machine of the class described, an

applicator having a substantially vertical work- 'agce'nsar axis, and supporting means for the work-guiding roll extending axially through-the hollow shaft.

JACOB S. KAMIBORIAN.

REFERENCES CITED 15 The following references are of record in the file of this patent:-

UNITED STATES PATENTS Number Name Date 20 1,750,709 Eppler Mar. 18, 1930 2,000,963 Lawson May 14, 1935 2,028,831 Hadaway Jan. 28, 1936 2,314,047 Kamborian Mar. 16, 1943

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