US1472058A - Rolling machine - Google Patents

Description

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A. PPLER ROLLING MACHINE Filed oct. 2s

1920 3 Sheets-Shet l @cih 30, i923.

A. EPPLER ROLLING MACHINE Filed Oct. 28 1920 3 Sheets-Sheet 2 VE/v ma 3 Sheets-Sheet 5 EPPLER ROLLING MACHINE Filed oct; 28, 1920 /NVENTU/rl- Patented @et 39, i923.

ANDREW EPPLER, OF LYNN, MASSACHUSETTS, ASSIG'NOR T0 UNITED SHOE MA- CHINERY COR-PGRATIO-N, OE" PATERSON, NEVI JERSEY, A CORPORATION OF NEW JERSEY.

ROLLING MACHNE.

Application filed October 28, 1920. Serial No. 420,135.

To @ZZ whom t may concern.'

Be it known that l, ANDREW ErrLnn, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain Improvements in Rolling li/lachines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like part-s in the several figures.

rlhis invention relates to rolling machines and is herein shown as embodied in a machine for rolling arctic uppers. c

Arctic uppers, according to one method of manufacture, are made up of two main parts, a vamp and a quarter, each part consisting of a series of layers of sticky material such as rubber, or textile material impregnated with rubber. These layers may consist for instance of fleece lining, friction fabric, stays and foxings, all of which are cemented together and rolled. rlhe vamp and quarter thus formed are then joined together by stitching or otherwise to form a closed upper and a foning may then be applied by rolling. ln rolling the layers forming the vamp or the quarter through ordinary cylindrical rolls, the difficulty has arisen that the material sticks to the rolls and is not properly'delivered from them.

Another difliculty arises in rolling the foXing upon the closed upper, particularly at the heel portion. Although the cylindrical rolls may serve to roll the toe portion of the upper, they will not serve to roll the heel foring due to the peculiar surface at the heel end of the upper.

An object of the invention, therefore, is to provide improved rolling mechanism for pressing together layers of sticky material. ln accordance with this feature, the invention comprises a pair of pressing rolls, guide rolls, and a belt looped around each pressing roll and one of the guide rolls to prevent the work from adhering to the pressing rolls. In the illustrative embodiment, there is a horizontal belt looped 'around the lower pressing roll and about guide rolls at the ends or the machine, this belt acting both as a feed belt and as means to prevent the work from sticking 'to the lower roll. Another belt is vertically arranged, passing about the upper pressing roll and about a guide roll whose position may be changed so that the operator may conveniently reach the work as its hold on the belt is broken by the guide roll.

Another object is to provide improved mechanism for rolling the closed upper, as at the heel end when foxing is applied. In accordance with this feature, the invention comprises a pair of frusto-conical pressing rolls constructed and arranged to roll closed work of irregular contour, and means for driving the rolls.

Other features and advantages will appear from the following description and accompanying drawings, in which- Fig. l is a front elevation, partly broken away, and partly in section of the rolling machine,

Fig. 2 is an end elevation looking toward the left of Fig. l,

F ig. 3 is a top plan view.

The frame comprises a casing or stand which carries an upper pressing roll 12 and a lower bodily movable pressing roll 14.

which is actuated by a treadle. A wide belt 16, preferably of canvas, is looped about the lower pressingroll and about guide rolls 18 and 2O of comparatively small diameters secured tobrackets 22 at the ends of the machine. This belt acts as a feeding belt and also as means to prevent the sticky work from adhering to the lower pressing roll. It also passes around an idler roll 24 and about a belt tightening roll 26 mounted on an arm 30 pivoted to the pins 28 and pressed upwardly by a spring 32. To secure a frictional drive of the belt, the lower roll 14 is movably mounted on a forked arm 34 pivoted at 36 to the framework and pressed upwardly by a coiled spring 38 which bears at one end on the adjusting screw 40 and at the other end against the arm. To depress this roller 14 to stop the belt, the forked arm 34 is joined by a rod 42 to the treadle 44 pivoted at 46 to a bracket. Depression of the roll not only carries it away from the upper run of the belt but also serves to tighten the belt to aid in stopping the latter. In rolling flat pieces of work, the operator ordinarily stands at the right end of the machine as viewed in Fig. l but flat pieces or cylindrical pieces of work may also be manipulated from the front of the machine. To provide for stopping the machine when working in this latter position, another treadle 48 may be pivoted to the framework to over- .'lie the rst treadle 44 and thus be manipu- .zio

lated to lower the pressing roll. Y

The upper roll 12 is mounted loosely on a shaft 50 which is normally fixed in a bearing bracket 52 and the roll is driven by a sprocket 54 connected by `a sprocket chain 56 to another sprocket 58 drivenfrom a motor. The sprocket 58 is mounted on the end of a shaft 60 having a worm wheel 62 meshing with 'awormr 64 extending from the motor 66. The worm and worm gear may be housed within the shield 68 which is pivoted on the shaft 60 to aid in alining the motor shaft and motor.

To prevent sticky work from adhering to the upper pressing roll 12, a second belt 70 is looped about the roll and about a sectional' guide roll comprising a shaft 72 having a series of rollers 74. The spacesV between the rollers allow kthe belt to sag somewhat at intervalsso that it is no longer flat and this breaks thehold of the sticky work. This shaft and the rollers are supported by a cross bar 76 having projections fitting between the rollers and against intermediate portions of the shaft. The bar 76 is carried by pins 78 slidable in hollow bosses 82, 82 on ythe bracket 84 and spring pressed upwardly to tighten the belt by springs 80 mounted in Vthc hollow bosses. The bracket 84 extends between the two runs 'of the belt and projects outwardly at one side'of the belt where it is formed with an integral gear housing 86k and with a projecting portion which can be secured as by a set screw tothe shaft 50. The shaftV 50 extends through a bushing 88 in a split bearing which can be clamped together by the bolts 90, this clamping action also serving to fix `the bracket 84 and the parts carried thereby in different angular positions. e

F or rolling closed work having an irregular' surface, such as the heel end of a closed upper, Vthere are provided a .lower driven Afrustoconical roll 100 on 'the projecting end of the shaft 50 and an. Vupper frusto-conical roll 102 mounted loosely on a projecting shub shaft 104. Both rolls may haveV a rubber covering and are held on their shafts by suitable washers 106 and s crewskthreaded into theends of the shafts. Vlfhe lower roll 100 is driven through the following gear connectionsV fromv the sprocket 54. A gear 108, secured to the sprocket 54, meshes with a gear 110 mounted on the inner end ofa short shaft 112 in the framework. Another gear 114on the outer end of thisl shaftl mesheswith a gear 116 secured to the 'hub of the roll 100. The

vupper roll `102 is driven by friction and it can be raised `and lowered to permit insertion or removal of the closed work. For raising the upper roll 102, the latter is mounted in a bracket 118 formed on the end of a bent lever 120 pivoted at 122 to the framework., The lever has a lower arm 124 lying in the path of a lug on the'v bell crank lever 126 pivoted at 128 to the frame and connected by a rod 130 to a treadlev 182. To press the upper roll 1021 yieldingly against the lower roll to provide a frictional driving engagement, a spring 136 is interposed between the end of a sliding rod 134 and the framework, the otherend of the rod being connected adj ustably to the lower arm 124 of the lever. This connection comprises a hand wheel 134 which is threaded on the end of the rod and which bears against the lower arm 124 of the lever. This hand wheel can be4 turned to adjust the tension of the spring 136 and thus adjust the pressure between the rolls.

ln rolling fiat pieces, such as the layers composing the vamp or quarter, the operator may stand at the right of the machine and place the work upon the belt 16. VThe belt 16 feeds the workV between the pressing rolls and if the work adheres to the belt 16, it will be carried as far as the roll 20 where its hold on the belt will be broken. lf, however, the workadheres to the: belt 7 0 Vit will be carried up as f'ar as ythe sectional guide roll 72, 74 where its holdwill be broken. The operator may remove the work at this point and, if desired, he may-also swing the sectional guide roll 72, '74 about the yaxis of the roll 12 to bring the belt into a more convenient position. Flat pieces of work ork pieces of closed work such'asthe toe endv one standing near the ends of the cylinn drical rolls to roll the ytoe end of a closed upper and the other standing near the ends of the conical rolls to receive thework from the first operator andvroll theheel foxing.Y Having thus described my vinvention,

what I claim as new and desireto secure by Letters Patent of the'United States is :V

1. ln ay machine of the class described, a presser roll, two` guide rolls each"of'snfialler diameter than that of the presser roll, a belt passing aroundthe three rolls with one ofY its runs'substantially straightV and iny con-v tact with the three rolls, means forv driving the presser roll, a second presserroll arf ranged in opposition tothe first presser'roll, a guide roll of small diameter associated with the second presser roll, va belt passing around the second presser and guide rolls,

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.and yielding means for urging the presser no o rolls toward each other.

2. In a machine of the class described, a pressing roll, a guide roll, a belt looped around the pressing roll and the guide roll, and means to change the location of the guide roll to vary the position of the belt.

3. In a machine of the class described, a pressing roll, a bracket mounted to swing about the axis of the roll, a guide roll carried by the bracket, and a belt looped around the guide roll and the pressing roll.

4. In a machine of the class described, a pressing roll, a bracket mounted to swing about the axis of the roll, means to secure the bracket in different angular positions, a guide roll carried by the bracket, and a belt looped around the guide roll and the pressing roll.

5. In a machine of the class described, a pressing roll, a bracket, a spring pressed bar carried by the bracket, a guide roll jour. naled in the bar, and a belt looped around the guide roll and the pressing roll.

6. In a machine of the class described, a pressing roll, a guide roll, and a belt looped about the rolls, said guide roll being formed in sections to break the hold of the work that sticks to the belt.

7. In a machine of the class described, a pressing roll, a guide roll comprising a shaft and a series of rollers mounted on the shaft, a bar for supporting the shaft and having a series of projections to support the shaft between the rollers, and a belt looped about the pressing roll and the guide roll.

8. In an upper rolling machine, a pressing roll, a pair of guide rolls, a -belt looped around the pressing roll and the guide rolls for frietional driving engagement with the pressing roll, and means for moving the pressing roll to tighten the belt and stop its motion.

9. In an upper rolling machine, a fixed shaft, a driven roll loosely mounted on each end of the fixed shaft, a co-operating roll mounted for frictional drivingy engagement with each driven roll, a treadle adjacent each co-operating roll to withdraw it from engagement with its driven roll, and gearing for driving the rolls.

l0. In an upper rolling machine, a fixed shaft, a driven cylindrical roll loosely mounted on one end of the fixed shaft, a second cylindrical roll for co-operation with the first roll in rollingthe toe end of a closed upper, a driven conical roll mounted on the other end of the fixed shaft, a second conical roll for co-operation with the first conical roll in rolling the heel end of the closed upper, and gearing connecting the driven rolls for driving them together.

1l. In a machine of the class described, a pressing roll, a guide member, and a belt passing around said roll and member, said member being formed with alternate projections and depressions whereby the belt as it passes around said member will sag in the localities of the depressions and thereby break the hold of a piece of tacky sheet material which is being carried around by the belt.

In testimony whereof I have signed my name .to this specification.

ANDREW EPPLER.

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