US2208854A - Assembling machine - Google Patents

Description

July23, 1940. A PERR. 2,208,854

ASSEMBLING MACHINE Filed Nov. 1, 1939 4 Sheets-Sheet l Filed Nov. 1, 1939 4 Sheets-Sheet 2 July 23, 1940. A, PERRI 2208,854

ASSEMBLING MACHINE Filed Nov. 1, 1939 4 Sheets-Sheet s y 1940- A. PERRI ASSEMBLINQ MACHINE Filed Nov. 1, 1939 4 Sheets-Sheet 4 In vere iar.

Patented July 23, 1940 UNITED STATES ASSEMBLIN G MACHINE Angelo Perri,

Groveland, Mass,

assignor to Montreal Shoe Machinery (30., Ltd., Montreal, Quebec, Canada, a corporation of Canada Application November 1, 1939, Serial No. 302,37

8 Claims.

This invention relates to machines for assembling the upper, counter and lining of a shoe with the insole on a last preparatory to the pulling over and lasting operation, the parts being held in position by tacks which are driven thru the flange of the upper into the insole at the heel end and into the last at the middle of its back, by this operation.

.In machines of this type the last is placed on a jack post which swings forwardly and rearwardly and the parts of the upper are placed in position on the last andthe post is swung rearward to carry the last into position, to permit the tack driving operation to be performed. Be-

fore the tacks are driven the parts of the upper should be fitted as closely as possible to the last and the fiange turned over onto the insole.

The primary object of my invention is to provide improved means of fitting the upper, counter and lining to the last, so that they will be drawn closely about the heel end of the last and pressed against approximately the entire surface of the heel part before the tacks are driven for holding these parts in position.

I accomplish this object by providing two pairs .of oppositely disposed press rolls which press the Fig. I isa side elevation of an assemblingma- I chine containing a preferred embodiment of my invention.

. Fig. 2 is a front elevation thereof.

Fig. 3 is detail plan view of the pressing and wiping means.

Fig. 4 is a sectional view at line 4"4 of Fig. 3. Fig. 5 is a detail sectional at line 55 of Fig. 3. Fig. 6 is a detail sectional view of the flange tackers.-

; Fig. '7 is a plan view of the pressing and wiping means in an advanced position.

is of the common type illustrated in Knowlton Patent #1,671,430 of May 29, 1928.

As shownin the drawings, a jack post is slidably mounted in a casing I2, which is mounted on afixed pivot M. An angular shaped link I6 is connected by pivot H3 at one end to a coupling It on the front end of a rod 20, and at its opposite end by pivot-22 to the casing l2. Rod has a sleeve 24 thereon and a spring 28 on rod 29 is interposed between sleeve 24 and a sleeve 3%, also on rod 20. A lever 32 is pivoted at its upper end to the frame by pivot 35 and its lower end is connected by pivot 36 to one end of a link 33, which is connected to sleeve 24 at its opposite end by pivot Ml. Lever 32 has an arm 33 which engages a cam on the cam shaft 42. A lever 44 is pivoted at its lower end, by pivot 45, to a sleeve 46, which is fixed on the rear end ofrod 26, and said lever 44 is mounted at its. upper end on a fixed pivot 48, and has an arm fixed 2O thereon, which is arranged to operate a clutch 52 which connects the main shaft 54 with the cam shaft, so that, when arm 50 is swung downward, the clutch automatically connects shaft 54 to camshaft 42. An arm'55 is also fixed 5 on leverfl l l and has a roll 57 which is engaged with a cam 58 onv shaft 42.

With the above described construction, when the jack post is pushed rearward by the operator, it engages the front end of coupling 19,011 rod 20 and forces the rod rearward, thereby caus ing lever 44 to be swung rearward on its pivot 48 and swinging arm 56 and also clutch arm 50 downward, so that the clutch 52 automatically connects shaft 54, which is power driven, to cam shaft 42', thereby immediately causing cam 58 to be rotated, The downward movement of arm 56 moves roll 57 out of the depression in cam 58, so that, as soon as the camshaft starts to rotate, roll 5! will be engaged by the circular portion of cam 58, and during the remaining portion of the revolution of the cam shaft, arm 56 will be held in its depressed position by the cam, thereby holding lever 44 and locking rod 20 in the rearward positions into which they were pushed by the operator and locking the jack in its rearmost position. The inward movement of the jack post by theoperator also swings arm it, so that a shoulder I! at its lower end engages the casing l2 in which the jack post is held, with the result that the latter is also looked in the position to which it was pushed by the operator, during the remainder of the operation.

The lower end of jack post H] rests on afoot piece Gil, which is mounted on a fixed pivot 6| 5'5 and a wedge 62 is supported on a frame portion 63 and is connected, by pivot 64, to one end of a lever 65, which is pivoted at 66 on foot piece 60. The opposite end of lever 65 is connected by pivot 61 to a fiat rod 68 having two projecting shoulders 99 and 19 thru which a rod I2 passes and is slidable therein. A spring I3 is mounted on rod I2 between said shoulders and a collar 74 is secured on the rod I2 in engagement with the lower end of said spring. Rod I2 is connected at its upper end to a one end of a cam lever I6, which is pivoted at I5 at its opposite end and engages a cam on shaft 42 at an intermediate point, the arrangement being such that, after the jack post has been locked in its rearmost position, rod "I2 is pulled upward, and, acting thru spring I3, rod I2 and lever 65, wedge 62 is forced forward thereby forcing foot piece 69 upward and causing jack post In tobe forced upward also. This movement takes place subsequent to the wiping and pressing operations hereafter described.

A casing I8 is fixed on the frame and has a bar I9 slidably mounted therein. A wiper 89 is pivoted at 8i on a lug 82 on bar I9 and extends forwardly towards the position of the jack post when locked in its rearmost position. A lever 84 is mounted, at an intermediate point therein, on a fixed pivot 85 and is connected, at its lower end, to sleeve 39 by a pivot 86, and at its upper end, by a link 81, to the rear end of sliding bar I9. When the cam shaft is rotated, lever 32 is swung rearward causing link 38 to pull sleeve 24 rearward also and causing spring 28 to push sleeve 30 rearward and thereby swing the upper end of lever 84 forward, so that bar I9, which carries the wiper, is pushed forward.

A rod 99 is slidably mounted in bar I9 and is pressed forwardly by spring 9I therein (Fig. 4) and a Y-shaped centering device 92 is pivotally mounted on the front end of rod directly beneath wiper 80. A supplemental centering device 93 is also provided beneath device 92. These parts perform their usual function of correctly positioning the last.

After the jack post, having a last, with an insole thereon and having the upper, counter and lining wrapped about the heel end of the last, has been pushed back into position and looked, as previously described, the Wiper BI] is advanced by the forward movement of bar I9 and wipes the edge portions of these parts onto the heel of the insole, and at the end of this movement the jack post will be pushed up by wedge 62, so that the flanged or wiped in portions will be pressed firmly down onto the heel of the last. The rear end of the wiper is pressed upward by a stiff spring 88, so that a slight upward yielding of the wiper is permitted.

No claim is made for the portion of the machine thus far described except in combination with parts now to be described.

A pair of pressing devices are mounted on the front end of bar I9, at opposite sides of the wiper 89, comprising a pair of levers 94 mounted on pivots 95, so that they swing horizontally to and from the last. The rear ends of said levers are connected by a spring 96, which acts to swing the front ends thereof away from each other when in their rearmost position. Rolls 91 are mounted on the rear ends of levers 94 and arranged to engage fixed cam faces 98 on opposite sides of casing 18, so that when sliding bar I9 is pushed forward the front ends of levers 94 will be swung towards each other.

The front ends of levers 94 are each provided with pressing devices which are identical in construction and disposed in opposite relation. Each lever has a transverse guide way 99 in which a carrier I90 is slidab-ly mounted, said carrier being rectangular in cross section and being held in its guide way by a cap plate Ifll. A longitudinal slot I02 is formed in each carrier thru which a post I 03, fixed in its lever 94, passes, and a spring I04 is interposed between each post and the front end of the slot and acts to push the carrier towards the jack post. A stop screw I in the outer end of each carrier engages post I93 and limits this movement. The inner end of each carrier has a pair of ears I06, between which a support I61 is mounted on a horizontal pivot I08, and each support has a bearing I09 projecting downwardly therefrom and a bearing Ill] projecting upwardly therefrom, on which press rolls III, II2 are freely rotatable, respectively, each bearing I09 normally extending towards the jack post at a slight inclination from the vertical as it extends downward and each bearing H9 extending at a similar inclination from the vertical, as it extends upward, as shown in Figs. 5 and 8. An equalizing spring H3 is interposed between the front end of each carrier I00 and its support Ill! and normally acts to hold the latter in the position of Fig. 5, but permits tilting movement thereof in either direction, which movement is limited by engagement of the support with the front end of the carrier.

The lower rolls III are slightly convex longitudinally, and the upper rolls II 2 are slightly concave longitudinally. All the rolls are rounded at their ends and they all may be made of any suitable material as wood, hard rubber, or metal.

With the above described construction, when the jack post is pushed in to the position in which it is locked, the lower rolls III engage the opposite sides of the last in the slightly concave portion, approximately midway between its top and bottom, and press the upper, counter and lining thereagainst, the rolls tilting on their pivots I08 to conform to the inclination of the sides of the last. The upper rolls II2 will also be pressed against the slightly convex portion of the last closely adjacent the bottom of the last, so that the top ends of said rolls terminate at the level of the top surface of the insole which has been secured on the last bottom, as best shown in Fig. 8. As a result the upper parts will be pressed firmly against the sides of the last from top to bottom of its heel part.

As the sliding bar I9 is pushed forward, the

rolls III, I I2 will not only press the parts on the last firmly against its sides thereof, but will also act to pull the upper parts firmly against the back of the last, the rolls being moved from the dotted line position of Fig. '7 to .the full line position thereof.

The pressing and pulling action of rolls III, II2 takes place simultaneously with the wiping action of the wiper 80, so that when the tacking operation takes place to secure the parts in position, these parts will have been tightly drawn against and effectively fitted to the heel portion of the last. I

The tacking operation which then takes place is the same as in prior machines of this type, a tacker nozzle II4 being arranged to drive two tacks thru slots 83 in the wiper, to secure the wiped in flange to the insole, as indicated in With the above described construction the.

parts of the upper are made to conform closely to the sides of the heel part of the last and are drawn tightly about the heel end thereof so that they are placed in the relation thereto that they are designed to be placed when the shoe is finshed. This operation is also performed without injury to the upper, as the rolls work the upper onto the last without any sliding action thereon. The action approximates to what it would be when the operator attempts to fit these parts to the last with his hands, but the increased force provided by the machine makes the operation more efifective than is possible by hand.

I claim:

1. In a machine for securing parts of a shoe upper in assembled relation upon a last preparatory to lasting having, in combination, tackers, a jack arranged to carry the last with the parts of the shoe on the heel part thereof into position to be operated on by the tackers and means for locking the jack in said position, a pair of rolls rotatably mounted at opposite sides of the last, when in said position, and means for moving said rolls into engagement with the sides of the heel part of the last and for then moving them towards the forepart thereof after the jack has been locked, to conform the parts closely to the last before they are secured by the tackers.

2. In a machine for securing parts of a shoe upper in assembled relation upon a last preparatory to lasting, having in combination, tackers, a jack arranged to carry the last with the upper parts on the heel part thereof into position to be operated on by the tackers and means for locking the jack in said position, a pair of pressing devices arranged to engage opposite sides of the heel part of the last when in said position, each comprising a pair of rolls mounted to rotate about axes transversely of the last when in said position, and means to move said rolls transversely of their axes towards the toe end of the last while engaged therewith to conform the upper to the heel end of the last in advance of the operation of the tackers.

3. In a machine for securing parts of a shoe upper in assembled relation upon a last preparatory to lasting having in combination, tackers, means to hold the last with the shoe parts thereon in position to be operated on by said tackers, a pair of pressing devices disposed at opposite sides of the last when the last is in said position,

each comprising a pair of press rolls mounted to.

rotate about axes disposed transversely of the last, two of the rolls of each pair being arranged to press the upper parts against an intermediate portion of the opposite sides of the last and the other two to press the parts against the sideportion of the last adjacent is bottom, and means to move the rolls while engaged with the last away from its heel end, prior to the operation of the tackers.

4. In a machine for securing parts of shoe uppers in assembled relation upon a last preparatory to lasting, having, in combination, tackers, means to hold the last with the shoe parts thereon in position to be operated on by said tackers, a pair of pressing devices disposed at opposite sides of the last when in said "posit-ion; each having a pair of-rolls mountedto rotate about axes disposed transversely of the lastg one of'the rolls of each pair being arranged to engagethe side of the last and the otherrolls of the pair being arranged directly above' the side engaging rolls and arranged to rotate about axes inclined towards each other and in position to engage the sides of the last adjacent its bottom and means for moving the rolls away from the heelend of the last while engaged therewith in advance of the operation of the tackers.

5. In a machine for securing parts of a shoe upper in assembled relation upon a last preparatory to lasting, having in combination, tackers, means to hold the last with the shoe parts thereon in position to be operated on by said tackers, a pair of pressing devices disposed at opposite sides of the last when the last is in said position, each comprising a pair of press rolls mounted to rotate about axes disposed transversely of the last, yieldable means for pressing said rolls against the sides of the last and means to move the rolls while engaged with the last towards the toe-end thereof prior to the operation of the tackers. I

6. In a machine for securing parts of a shoe upper to a last in assembled relation preparatory to lasting, having in combination, tackers, a jack for holding a last thereon in position to be operated on by the tackers, a support mounted to slide towards and from the heel end of the last when in said position, a pair of leversmounted on said support and extending forwardly therefrom and arranged to swing horizontally towards opposite sides of the last, a spring actuated carrier in the front end of each lever mounted to slide transversely thereof, a holder mounted on a horizontal pivot on the end of each carrier, bearings projecting upwardly and downwardly, re-

spectively, from each holder, rolls mounted on said bearings, means to advance said support towards the last, and means to swing said levers to press said rolls against the sides of the last as the support is advanced to press the upper against the last and draw it onto the heel part in advance of the operation of the tackers.

'7. In a machine for securing parts of a shoe upper to a last in assembled relation preparatory to lasting having in combination, tackers, means to hold the last in inverted position with the parts on the heel portion thereof in positionto be operated on by the tackers, a support mounted to slide longitudinally of the last, when in said position towards and from the heel end thereof, a pair of levers pivoted on said support and having rolls on the front ends thereof arranged to engage opposite sides of the last when in said position, a wiper on said support arranged between said levers in position to wipe the flange of the upper parts onto the last at the heel end thereof, and means to advance said support towards the last and simultaneously press said rolls against thesides'thereof, thereby to draw the parts onto heel end of the last as the flange thereof is wiped in by the wiper.

8. In a machine for securing partsof a shoe upper in assembled relation upon a last preparatory to lasting, having in combination, tackers, means to hold the last with the shoe parts thereon in position to be operated on by said tackers, a pair of pressing devices disposed at opposite sides of the last when the last is in said position, each comprising a pairof press rolls mounted to rotate about axes disposed transversely of the l t, tw of he l s of ea p rhaving a longithe side portions of the last adjacent the bottom tudinally convex surface and being arranged to of the last and to move them longitudinally press the upper against an intermediate portion thereof towards its toe-end prior to the operation of the opposite sides of the last, and the other of the tackers.

two rolls having a longitudinally concave surface ANGELO PERRI. [5 and being arranged to press the upper against

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