US2388384A - Sole roughing machine - Google Patents

Description

Nov. 6, 1945. w. c. CARD SOLE ROUGHING MACHINE Filed Aug. 28, 1945 5 Sheets-Sheet l Nov. 6, 1945.' v w. c. CARD 2,388,384

SOLE ROUQHING MACHINE Filed Aug. 28, 1945 5 sheets-Sheet 2 WZZ famC 62rd Nov. 6 1945. w. c. CARD SOLE ROUGHING MACHINE Filed Aug. 28, 1943 5 SheetsSheet 3 w. c; CARD SOLE ROUGHING MACHINE Nov. 6, 1945.

Filed Aug. 28, 1943 5 Sheets-Sheet 4 N 6,1945. w. c. CARD 8 2,388,384

SOLEIROUGHINGYMACHINE Filed Aug. 28, 1943 5 Sheets-Sheet 5 fizz/ 0W mm a. card Aiiarzzqy Patented Nov. 6, 1945 UNITED STATES hATENT orricr.

22 Claims.

This invention relates to methods of, and machines for, roughing the surfaces of soles which are to be cemented to shoes.

In the manufacture of cemented shoes, it is the general practice to rough the overlasted margin of a shoe upper, and the marginal edge of an outsole, for raising the leather fibres so that when the parts are cemented together, the fibres of both the upper and the outsole will intermingle and form a homogeneous bond of cement and fibre.

While roughing of uppers has been accomplished rapidly by using a Wide abrading wheel, roughing of outsoles has required much more time. In the past, roughing an outsole has been accomplished by feeding one marginal edge of the sole past a roughing tool, turning the sole when the toe portion approaches the tool and then feeding the other marginal edge past the too]. As the periphery of the average sole is over twenty inches, this progressively feeding of the sole past a single roughing tool was slow. If the feeding of the sole was accelerated in an effort to speed production, inferior roughing resulted and the life of the roughing tool was materially shortened.

This invention provides a machine which greatly shortens the sole roughing time by feed ing the sole straight through a pair of opposed rotary roughing tools mounted on swinging arms and having guide rolls thereon so that the tools will follow the contour of the soles and roughs both sides of the attaching face of the sole at the same time.

A feature of the invention resides in the provision of mechanisms for automatically feeding the soles to be roughed from a magazine whereby the only responsibility of an operator is to keep the magazine loaded with soles.

Another feature of the invention resides in having opposed roughing tools guided by the sole edges along the periphery of the sole.

Other features of the invention reside in the provisions of mechanisms for automatically brushing the roughed soles to remove the loose fibres and for then discharging the soles from the machine.

An object of the invention is to reduce the time required for the roughing of outsoles.

Another object of the invention is the improvement of machines used for roughing outsoles.

A further object of the invention is the provision of an automatically operated machine for roughing outsoles.

Other objects of the invention will in part be obvious and will in part appear hereinafter,

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawings, in which:

Fig. l is a plan view partially in section of a sole roughing machine embodying this invention, and illustrates a sole ready to be advanced from the bottom of a stack towards the roughing tools;

Fig. 2 isva sectional side elevation taken substantially along lines 2*2 of Fig. 1;

' Fig. 3 is a partial plan view similar to Fig. l and illustrates additionally a sole'being advanced between the roughing tools; I

Fig. 4 is a side elevation of the machine, part of the frame being in section;

Fig. 5 is a sectional plan view taken substantially along lines 55 of Fig. 4;

Fig. 6 is a sectional end elevation taken substantially along lines 6-6 of Fig. 3; and

Fig. 7 is a fragmentary view on an enlarged scale illustrating a roughing tool applied to one edge of a sole, its associated guide roll and the underlying rubber covered sole supporting roll.

Referring to the drawings, the two roughing units It which may comprise a series of toothed Wheels Ii rotatably mounted on studs l2, are secured to the lower ends of vertical spindles [3 which are suitably journalled at their lower ends in bearings 14 and at their upper ends in the bearings l5 of a spindle housing IS. The spindles i3 are shouldered at I! and a thrust bearing l8 locates between the shoulder and the top of the bearing M which is threaded into the spindle housing It, thus the height of the roughing tools Hi can be varied by adjusting the bearing I4 which may be locked in the desired position by means of the knurled lock nut l9.

To keep the roughing tools 10 in constant contact with the sole to be roughed, regardless of its variations in thickness above that for which the roughing tools have been set, and also to provide necessary pressure of the tools on the work the spindles iii are urged downwardly'by compression springs 20 resting on the thrust bearings 2| located on the top of the spindles, and the compression of the springs may be varied by simply adjusting the plug 22 which is threaded into the upper end of the housing l6.

As illustrated in Fig. 6 the upper ends of the spindles l3 terminate in the form of elongate spur gears 23 which engage with drive gears 24 attached to the lower ends of driving spindles 25, which are also rotatable in the housing It,

and to the upper ends of which are attached the driven pulleys 26.

Projecting downwardly from the bosses of the spindle housings I6 are the studs 3I to the lower ends of which are attached the free rolls or sole guides 32 which contact the edges of a sole as it advances under the roughing units I0, and which guide the roughing units to follow the marginal edges of the sole during the roughing operation.

The previously described roughing unit assemblies are supported by the swinging arms 33 which are rotatably supported about the ball bearings 34, which are mounted on the stationary shafts 35, which may be cast as a part of the machine frame.

The shafts 35 are bored to receive the spindles 36 on the upper of which are secured the pulleys 31 which rotate the pulleys 26 by the belts 38. Spur gears 39 are secured to the lower ends of the spindles 36 and intermesh whereby rotation of one of the spindles 36 effects rotation of the other. One of the spindles 36 is provided with a pulley 40 adjacent its upper end, this pulley is rotated from the shaft M by the belt 42 which passes over the idler pulleys 43 and the pulley 44 secured to the shaft 4 I.

The shaft M is supported on bearings 45 at the rear of the frame of the machine and is keyed to a worm gear 46 of a speed reduction unit which in turn is driven by the pulley 41 and belt 48 from a conveniently placed motor or line shaft.

The two swinging arms 33 which carry the roughing units I0, are identical except that one is longer than the other as illustrated by the drawings so that the roughing tools will overlap each other, thereby ensuring full roughing at the toe of the sole. The arms 33 have extensions 50 which are drilled to receive the light compression springs 5| and the plunger rods 52. The plungers 53 are mounted on the inner ends of the rods 52 and contact the lug 54 on the frame of the machine. The screws 55 in the outer ends of the arm extensions 50 serve to adjust the tension of the springs 5i. The springs 5| act to urge the pivoted swinging arms 33 towards each other due to the plungers 53 contacting the lug 54 and the screws 58 held in lugs 59 on the frame act as stops to limit excessive outward movement of the arms 33. The table 60 which forms the base of a magazine to hold the soles to be roughed, is bolted to the two side frame 6| of the machine. The soles are stacked by the machine operator as illustrated by Fig. 4, with their toe edges against the gate 62 which is movable vertically for permitting the bottom sole of the stack to pass therebeneath.

Fig. 4 illustrates a sole advancing under the gate. The sole pusher 63 is guided in a slot 64 formed in the table 60 and is reciprocated continuously through the link 65 which is pivoted at 66 to the pusher 63, and through the connecting arm 61, by the eccentric 68 to which the arm 67 is attached at 69.

The eccentric 68 is mounted on and is driven directly by the shaft 10 on which is also mounted the gear II in mesh with the worm gear 46 on the shaft 41. The link 65 has a slot I2 in which the adjusting screw I3 which is threaded into the connecting arm 61 passes, enabling adjustment of the position of the pusher 63 to be made for accommodating soles extremely different in length.

Directly below the roughing units I0 is positioned a rubber covered sole supportingroll T5 keyed to the shaft I6 which is rotated by the gear from the front feed wheel shaft is pivoted to the machine frame at II8.

I! being in mesh with the gear 18 keyed to the shaft 10. The shaft I6 rotates in a bracket which is pivotally supported on the shaft 19 and in the stud 8| in alignment with the shaft I8 and secured to a lug 86 depending from the underside of the table 60.

The bracket 80 is adjustable vertically by the nuts 82 of a stud 83 which passes through a slot in an extension 84 of the bracket 80 and is secured at its upper end to a boss 85 on the table 60. The spring 81 around the stud 83 and held in tension by the nuts 88 urges the roll I5 upwardly towards the roughing units I0 until the extension 84 contacts the adjusting nut 82 which also serves as a stop. Thus the driven sole supporting roll I5 is resiliently mounted for movement away from the roughing units I0.

On either side of the roll I5 there is an auxiliary sole supporting roll 90 which is freely rotatable on the shafts 9| held in the backets 92 pivoted at 93 to the machine frames. The left hand bracket 92 (facing Fig. 4 of the drawings) has a downwardly extending tail 94 against which one end of a compression spring 95 presses. The spring 95 is retained in a bore of the boss 96 attached to the table 60 and a threaded bushing I36 serves to tension the spring to urge the roll upward. The spring 91 held in a boss 98 on the bracket 80 biases the plunger 99 upward into contact with the bracket 92 of the right hand roll 90 and serves to urge the roll upwards. Located directly above the rolls 90 are the toothed feed wheels I00 which are keyed to the shafts I8I rotatable in the bearings I02 attached to the upper side of the table 60. The forward feed wheel, the right hand one facing Fig. 2 of the drawings is driven by the gear I03 which is keyed to the shaft WI and which meshes with the idler gear I04 which in turnmeshes with the gear I8 on the shaft 10. The rear feed Wheel shaft is driven II by the sprocket wheels I06 and the chain I01.

To continue feeding of a sole past a dust removing brush I08 a rubber covered delivery roll I09 is fixed on a shaft IIO journalled in bearings The delivery roll shaft II 0 is driven by the gear II2 which meshes with idler gears H3 and H4 which in turn mesh with a gear I I5 keyed to the rear feed wheel shaft IOI. The rotary brush I08 is mounted above the delivery roll I09 on a shaft II6 journalled in a bracket I I! which The brush is rotated against the direction of feed of the sole and serves to clean off the roughed surfaces of the soles as they appear thereunder, brushing the leather dust towards the nozzle I20 of a chamber I2I to which a factory suction system may be connected.

Rotation of the brush I08 is accomplished by pulley I22 being belted to the pulley I23 on the shaft M. In order to compensate for wear of the brush I08 the bracket II I is adapted to be rotated around its pivot shaft II8 by set screws I24, held in lugs I25 on the machine frame, which contact the rear end of the bracket Ill and adjustment of the set screws will elevate or lower the brush as desired.

To keep the soles from curling upward as they are fed from the stack and under the front feed wheel I00 to the roughing units, a guide finger I26 islocated in the center of the path of the soles ahead of the roughing units I0. This finger I26 is attached to a vertically adjustable rod I2'I held in an extension arm I28 attached to the frame, and serves to keep the soles flat as they are being operated upon. 7

The rods I30 comprise a magazine, the soles being stacked between the rods I30, on the stacker table BI) as illustrated by Fig. 3. Through the rods I30 being rotatably adjustable and through their being adjustable towards and away from the space to be occupied by the soles, there can be placed to contact at four points, stacked soles of a variety of different shapes and sizes. It is understood, of course, that all the soles stacked each time should have substantially the same size and shape.

In operation, after the soles to be roughed are stacked between the rods I30 on the table 60 and the gate 62 is adjusted to a height corresponding to the thickness of the soles to be roughed, the

motor which rotates the shaft 4| which drives all the driven mechanism in the machine is started.

The eccentric 68 then rotates and reciprocates the sole pusher 63 causing it to push the lowermost sole in the stack under the gate 62 and the forward toothed feed wheel I the teeth of which press against the upper surface of the sole as illustrated by Fig. 4. The feed wheel is rotated in a clockwise direction from the shaft 4| by the drive including the shaft I0, the shaft 89 and i the gears I03, I04 and 18 described in the foregoing. As the sole progresses through the machine it passes under the rear feed wheel I09 which is rotated in a clockwise direction by the sprocket wheels I06 and the chain it! described in the foregoing, and which feeds the sole at the rear portion of the machine and onto the rubber covered delivery roll I09. The roll I09 is rotated as previously described and moves the sole from the machine against the brush I68 causing it to -fall into the bin I35 as illustrated by Fig. 4.

The rubber covered rolls I and 90 which have been described in the foregoing, support the sole and aid in its movement through the machine.

The roughing units In are rotated in opposite directions by the drives including the pulleys 31 and 26, the belts 38, and the gears described in the foregoing. The guide rolls 32 which as has been described, rotate freely in the shafts 3| contact the outer periphery of the sole as it progresses through the machine, and are forced to follow the shape of thesole and move the swinging arms 33 which support the roughing tools, towards and away from each other as required by the varying shape of the sole, whereby the roughing tools are caused to contact and rough the marginal edge of the sole.

Fig. 1 illustrates the guide rolls 32 as being in position for contacting the toe portion of a sole. Fig. 3 illustrates the guide rolls 32 as moved apart -by the passage of a sole therebetween and the tools IE! having roughed the forward portion of the sole. Fig. 5 in the rear portion thereof, illustrates the rolls 32 guiding the roughing tools IE1 above the heel edge of a sole.

The brush I08 is rotated in a counter-clockwise direction by the drive including the belt I29 and ing of soles and which through being entirely automatic, will not require skilled operators, and which thus will lessen the expense of operation. Since certain changes may be made in' the above construction and dilferent embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

What I claim as new and desire to secure by Letters Patent is:

1. A sole roughing machine comprising a pair of roughing tools rotatable on a vertical axis, means including one pivoted arm for supporting one of said tools, means including a second pivoted arm for supporting the other of said tools, means for feeding a sole in contact with said tools, means including a roll underlying said tools for maintatining the sole in contact therewith, means for contacting one edge of the sole for moving one of said arms for guiding one of said tools along the sole, and means for contacting the opposite edge of the sole for moving the other of said arms for guiding the other of said tools along the sole, said second arm being longer than said one arm whereby the roughing of said tools overlaps at the toe portion of the sole.

2. A sole roughing machine comprising a rotatable sole support, a pair of roughing tools rotatable on a vertical axis and overlying said support, means including one pivoted arm for supporting one of said tools, means including a second pivoted arm for supportin the other of said tools, means for feeding a sole in contact with said tools and said sole support, means including said arms for urging said tools towards each other, means for contacting one edge of the sole for mOVing one of said arms for guiding one of said tools along the sole, and means for contacting the opposite edge of the sole for moving the other of said arms for guiding the other of said tools along the sole, said second arm being longer than said one arm whereby the roughing of said tools overlaps at the toe portion of the sole.

3. A sole roughing machine comprising a rotatable sole support, a pair of roughing tools rotatable on a vertical axis and overlyin said support, means including one pivoted arm for supporting one of said tools, means including a second pivoted arm for supporting the other of said tools, means for feeding a sole in contact with said tools, means including said arms for urging said tools towards each other, means for contacting one edge of the sole for moving one of said arms for guiding one of said tools along the sole, means for contacting the opposite edge of the sole for moving the other of said arms for guiding the other of said tools along the sole, said second arm being longer than said one arm whereby the roughing of said tools overlaps at the toe portion of the sole, a drive shaft, and means including said shaft for rotating said tools for rotating said sole support, and for operating said feeding means.

4. A sole roughing machine comprising a pair of opposed roughing tools, means for feeding a sole in contact with said tools, means including means for contacting one edge of the sole for guiding one of said tools along said one edge of the sole, means including means for contacting the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole, and a sole supporting roll under said tools.

5. A sole roughing machine comprising a pair of opposed roughing tools, means for feeding a sole in contact with said tools, means including means for contacting one edge of the sole for guiding one of said tools along said one edge of the sole, means including means for contacting the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole, a sole supporting roll under said tools, a drive shaft, and means including said shaft for operating said feeding means and for rotating said tools'and said roll.

6. A sole roughing machine comprising a pair of opposed roughin tools, means for feeding a sole in contact with said tools, means including means for contacting one edge of the sole for guiding one of said tools along said one edge of the sole, means including means for contacting the opposite edge of the sole for guiding the other of said tools along said oppositeedge of the sole, a sole supporting roll under said tool, a rotary brush for cleaning the roughed sole, a drive shaft, and means including said shaft for operating said feeding means and for rotating said tools, said brush and said roll.

7. A sole roughing machine comprising a sole magazine, a pair of opposed roughing tools, means for feeding a sole to be roughed in contact with said tools, means for pushing the bottom sole of a stack of soles in said magazine in contact with said feeding means, a sole supporting roll under said tools, a drive shaft, and means including said shaft for rotating said tools and said roll and for operating said pushing means and said feeding means.

8. A sole roughing machine comprising a sole magazine, a pair of opposed roughing tools, means for feeding a sole to be roughed in contact with said tools, means for pushing the bottom sole of a stack of soles in said magazine in contact with said feeding means, a sole supporting roll under said tools, a rotatable brush for cleaning the roughed sole after passing said tools, a drive shaft, and means including said shaft for rotating said tools, said brush and said roll and for operating aid pushing means and said feeding means.

9. A sole roughing machine comprising a sole magazine, a pair of opposed roughing tools,

means for feeding a sole to be roughed in con-s tact with said tools, means including means for contacting one edge of the sole for guiding. one of said tools along said one edge thereof, means including means for contacting the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole, means for pushing the bottom sole of a stack of soles in said magazine in contact with said feeding means, a sole supporting roll under said tools, a drive shaft, and means including said shaft for rotating said tools and said roll and for operating said pushing means and said feeding means.

10. A sole roughing machine comprising a sole magazine, a pair of opposed roughing tools, means for feeding a sole to be roughed in contact with said tools, means including means for contacting one edge of the sole for guiding one of said tools along said one edge thereof, means including means for contacting the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole, means for pushing the bottom sole of a stack of soles in said magazine in contact with said feeding means, a sole supporting roll under said tools, a rotatable brush for cleaning the roughed sole after passing from said tools, a drive shaft, and means including said shaft for rotating said tools, said brush and said roll and for operating said pushing means and said feeding means.

11. A sole roughing machine comprising a pair of opposed roughing tools, means for feeding a sole in contact with said tools, means including means for contacting one edge of the sole for guiding one of said tools along said one edge of the sole, means including means for contacting the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole,

sole supporting means under said tools, and pressing means between said tools for pressing a sole against said supporting means.

12. A sole roughing machine comprising a pair of opposed roughing tools, means for feeding a sole in contact with said tools, means including means for contacting one edge of the sole for guiding one of said tools along said one edge of the sole, means for contacting the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole, sole supporting means under said tools, pressing means between said tools for pressing a sole against said supporting means, and means for adjusting the spacing of said pressing means relative to said supporting means for compensating for soles having different thicknesses.

13. A sole roughing machine comprising a sole magazine, a pair of opposed roughing tools, means for feeding a sole in contact with said tools, means for pushing the bottom sole of a stack of soles in said magazine in contact with said feeding means, means for conveying a roughed sole from said machine, and coordinated means for operating said tools, said feeding means, said pushing means and said conveying means.

14. A sole roughing machine comprising a sole magazine, a pair of opposed roughing tools, means including means for contacting opposite edges of a sole for guiding said tools along said edges, means for feeding a sole in contact with said tools, means for pushing the bottom sole of a stack of soles in said magazine in contact with said feeding means, means for conveying a roughed sole from said machine, and coordinated means for operating said tools, said feeding means, said pushing means and said conveying means.

15. A sole roughing machine comprising a sole magazine, a pair of opposed roughing tools, means for feeding a sole in contact with said tools, means for pushing the bottom sole of a stack of soles in said magazine in contact with said feeding means, a sole supporting roll underlying said tools, means for conveying a roughed sole from said machine, and coordinated means for operating said tools, said feeding means, said pushing means and said conveying means and for rotating said roll.

16. A sole roughing machine comprising a sole magazine, a pair of opposed roughing tools, means including means for contacting opposite edges of a sole for guiding said tools along said edges, means for feeding a sole in contact with said tools, means for pushing the bottom sole of a stack of soles in said magazine in contact with said feeding means, a sole supporting roll underlying said tools, means for conveying a roughed sole from said machine, and coordinated means for operating said tools, said feeding means, said pushing means and said conveying means and for rotating said r011.

17. A sole roughing machine comprising a sole magazine, a pair of opposed, rotary roughing tools, means including a feed roll for feeding a sole in contact with said tools, means including one guide for contact with one edge of a sole for guiding one of said tools along said one edge, means including another guide for contact with the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole, a pusher for pushing the bottom sole of a stack of soles in said magazine into contact with said feed roll, a sole supporting roll opposite said tools, a conveyor roll for conveying the roughed sole from the machine, and coordinated means for rotating said tools and said rolls and for reciprocating said pusher.

18. A sole roughing machine comprising a sole magazine, a pair of opposed, rotary roughing tools, means including a feed roll for feeding a sole in contact with said tools, means including one guide for contact with one edge of a sole for guiding one of said tools along said one edge, means including another guide for contact With the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole, a pusher for pushing the bottom sole of a stack of soles in said magazine into contact with said feed roll, a sole supporting roll opposite said tools, a rotatable brush for cleaning the roughed sole, a conveyor roll for conveying the roughed sole from the machine, and coordinated means for rotating said tools, said rolls and said brush and for reciprocating said pusher.

19. A sole roughing machine comprising a sole magazine, a pair of opposed, rotary roughing tools, means including a feed roll for feeding a sole in contact with said tools, means including one guide for contact with one edge of a sole for guiding one of said tools along said one edge, means including another guide for contact with the opposite edge of the sole for guiding the other of said tools along said opposite edge of the sole, a pusher for pushing the bottom sole of a stack of soles in said magazine into contact with said feed roll, a sole supporting roll opposite said tools,

means between said tools for pressing a sole against said supporting roll, a conveyor roll for conveying the roughed sole from the machine, and coordinated means for rotating said tools and said rolls and for reciprocating said pusher.

20. A sole roughing machine comprising a resilient sole supporting roll, a pair of vertically pivoted arms having their free ends overlying said roll, a roughing tool journalled in the free ends of each of said arms for rotation on a vertical axis, means urging said tools and said roll towards each other, means fOr feeding a sole past said roughing tools the line of feed being substantially parallel to said arms, means urging the free ends of said arms toward each other, and means depending from said arms for contacting the edges of a sole fed to said tools to swing said arms and tools apart according to the sole contour.

21. A sole roughing machine comprising a rotatable sole support, a pair of vertically pivoted arms having their free ends overlying said support, a, roughing tool journalled in the free ends of each of said arms for rotation on a vertical axis, means for feeding a sole past said roughing tools the line of feed being substantially parallel to said arms, means urging the free ends of said arms toward each other, means depending from said arms for contacting the edges of a sole fed -to said tools to swing said arms and tools apart according to the sole contour, a drive shaft, and means including said drive shaft for rotating said sole support and said tools.

22. A sole roughing machine comprising a rotatable sole support, a pair of vertically pivoted arms having their free ends overlying said support, a roughing tool journalled in the free ends of each of said arms for rotation on a vertical axis, means for feeding a sole past said roughing tools the line of feed being substantially parallel to said arms, means urging the free ends of said arms toward each other, means depending from said arms for contacting the edges of a sole fed to said tools to swing said arms and tools apart according to the sole contour, a drive shaft, and means including said drive shaft for operating said feeding means and for rotating said sole support and said tools.

WILLIAM C. CARD.

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