US1681064A - Stock-wind-off mechanism - Google Patents

Description

Aug. 14, ma 1,681,064

H. D. STEVENS STOCK WIND-OFF HECHANISH Filed March 18, 1927 2 Sheets-Sheet 1 ATTORNEYJ.

INVENTOR. Hamas D. Jrfvf/vs Aug. 14, 1928` A H D STEVENS STOCK WIND-OFF MECHANISM Flled March 18, 1927 Patented Aug. 14, 1928.

UNITED STATES HORACE D. sTEvENs, OEARRON, OHIO, ASSIGNOR` To TEE EIRESTONE TIRE AND RUBBER COMPANY, OE AKRON, OHIO, A CORPORATION oE OHIO.

sTocx-wrNn-OEE MEOHANISM.'

Application led latch 18, 1927. Serial No. 176,445;

This invention relates to a Wind-o` mechanism `for power driving stock` supply reels or rolls in'teeding strip band or web material of a low tensile strength into a driven` apparatus. i t

The purpose of this invention 1s p rovide power driven `means for unwinding strip stock from a supply reel where said stock is of such a low tensile strength that l0 unwinding the same from thev supply reel merely by pulling on the stock wouldresult in breaking the same. Suitable cha-1n and sprocket driving means are therefore provided for winding'up on a reel the liner fabric used to separate the layers of stock and at the same time unwinding the supply reel. The last-named reel, however cannot have a definite speed ratio with respect to a uniform speed driven apparatus, dueto the decreasing circumference of said reel.

It is accordingly necessary to provide a variable speed mechanism and regulate the tension and quantity of stock fed into said ap-` paratus. Y

An object of the invention, therefore, 1s to devise power driven means for unwmdmg strip stock from aA supply roll.v A further Object is to provide means for varyin the speed ot' the driven means, the speed elng governed by thetension in the stock. Another object is lto devise means forrguiding any one ot a pluralit of laterally spaced flat strips on to a sing e 'flat channel.

The foregoing andother objects are obf tained by the device illustrated in the accompanying drawings and described below. It is to be understood that the device is not limited to the specifcformthereof disclosed herein.

Of the accompanying drawings:

Figure 1 is a side elevation of a device embodying the principles of the invention; and y Figure 2 is a plan view thereof, an upper portion of the device beingomitted.

Referring more particularly to the drawings, 10 represents a known type of power driven press for binding together a number of yvarious strips of Vmaterial to be laminated,

and comprises pressure rollers 11, driven througha suitable train of chains, sprocketsA and reducing gears 12 by a motor 13. Adjacent rollers 11 are a number of guide Vplates 14, 15 and 16, for guiding various strips or bands thereover through rollers 11,` a strip 17 being shown only on the lowermost guide plate. This strip is being fed from a supply reel 18 with a liner or' fabric 19 wound between the turns of Stripmaterial to prevent the latter adhering, thel liner being rewound on reel 20 after the strip 17 is taken therefrom. If desired, a number of narrow strips 17 may be laterally spaced along a relatively wide reel and removed therefrom one at a time theremainder ot the strips being rewound with the liner.` Power driven means are provided for unwinding the stock, sincepulling on the strip material to unwind the reel is likely to damage, stretch, or break the strip, especially vwhere the latter is composed of uncured gum, thin rubber sheets, rubberized v or plain fabric bands of low tensile strength, or the like. A chain 21 driven by sprocket 22, is trained over idler 23 and Aover sprockets 24 and 25, journaled on shafts 26 and 27 carrying reels 18 and 20, respectively, for rotating' the latter. Motor 13vis geared to pulley 28 which drives pulley-29 by abelt 30, pulley 29 rotating sprocket 22 through gears 32. Since reels 26 and 27 cannot be driven at a uniform rate, a variable speed governed by the tension in the strip material is obtained by passing strip 17 under a counterbalanced tension roll 33 supported on arms 34 and 35 pivoted'to frame 36 a which frame also carries reels 18 and 20.( A pivoted lever 37 is connected to arm 35 byla link 38 and is provided with an arm 39 carrying an idler pulley 40 for applying more or less tension in belt 30 to obtain greater or less speed in pulley 29, belt 30' being normally loose enough so that it will slip'around pulley 29 without rotating the same when no pressure is applied Vby idler 40.

Clutches 11 and 42 splined to shafts 26 and 27, respectively, are adapted tobe engaged with sprockets 2ey and 25 for rotating reels 18 and 20. The clutchis engaged only for turning the reel `ontonvhich the liner is being wound the other reel being allowed to idle. Shafts 26 and Q7 are respectively provided with drums 43 and 44. either of weighted friction belts 45 or 46 being adapted to be thrown over the drum which is idling to provide tension on the reel from which stock is being drawn. Guide rollers l?, disposed transversely ol the path of strip 17 in a vertical plane, receive the strip from liner 119 at any angle and guide it onto guide plate 16, the path of a strip 17 from the edge of the liner being shown in dotted lines.

ln operation chain :2l is rotated in the direction indicated by the arrow in Figure l and, clutch 42 being thrown into engagement with sprocket Q5, reel Q() will be rotated to wind up liner 19 from reel 1S. A strip 17 of stock taken from the liner passes in the lorm of a festoon under tension roll 33, through guide rolls a7 and over guide plate 1G. The strip linally passes between rollers ll with other strips with which it is to be associated. lt the reels are rot-ating too slowly, the amount of the strip material in the iestoou will be decreased and the tension in the strip produced thereby will raise roller 33 which in turn will canse idler L'l0 to be forced against belt 30 and speed up the reel driving means. lVhen the stock is being ied too rapidly, roller 33 will drop and cause belt 30 to be loosened, thus slowing down the reel driving means. When the end of the liner is reached its direction is reversed by throwing out clutch 43 and throwing clutch l2 into engagement with sprocket 2l, the next strip 17 then being removed from the liner before the latter leaves reel 20.

Obviously the liner receivingr reel may be omitted if the strip material does not require a liner, in which case the clutch is thrown into engagement on the sprocket driving the supply reel.

Other modifications oi the invention may be resorted to without departing from the spirit thereof or the scope of the appended claims.

What is claimed is:

l. The combination of a wind-olf mechanism for stripfmaterial, with driven apparatus into which said strip is drawn, which comprises a rotatably supported supply reel carrying a. plurality of laterally spaced bands of said strip material with a liner, a rotatably supported liner receiving reel adjacent thereto, means intermediate the apparatus and said liner receiving reel for driving the latter from said apparatus, means riding upon a single band of the strip material between the reels and said apparatus for varying the speed of the liner reel in accordance with the tension in the strip material, and means for rotating the reels in either kot reverse directions, whereby as the liner end is reached the directions of the reels may be reversed and the liner receiving reel may become the supply reel as another band ot strip material is removed therefrom.

Q. The combination of a wind-oil' mechanism for strip material, with driven apparatus into which said strip is drawn, which comprises a rotatably supported supply rcel carryingr a plurality oi. laterally spaced bands ot said strip material with a. liner, a rotatably supported liner receiving reel adjacent thereto. means intermediate the apparatus and said lirici' receiving reel for driving the latter from said apparatus, means for feeding a single band ot' the strip material to said apparatus from the supply reel, and means for rotating the reels in either of reverse directions whereby as the liner end is reached the directions of the reels may be reversed and the liner receiving reel may become the supply reel as another of the bands of strip material is removed therefrom.

3. The combination of a wind-ofi' mechanism for strip material, with driven apparatas into which said strip is drawn, which comprises a rotatably supported supply reel carrying a ilurality of laterally spaced bands ot said strip material with a liner, a rotatably supported liner receiving reel adjacent thereto, means intermediate the apparatus and said liner receiving reel for driving the latter from said apparatus, means tor guiding into said apparatus a` strip taken from any transverse position on said supply reel, and means tor rotating the reels in either of reverse directions, whereby as the liner end is reached the directions of the reels may be reversed and the liner receiving reel may become the supply reel as :mother band of strip material is removed therefrom.

4. The combination of a wind-olf mechanism for strip material, with driven appa- `atus into which said strip is drawn, which comprises a rotatably supported supply reel carrying a plurality of laterally spaced bands ot said strip material with a liner, a rotatably supported liner receiving reel adjacent thereto. means intermediate the apparatus and said liner receiving reel for driving the latter from said apparatus, means for guiding into said apparatus a strip taken from any transverse position on said supply rcel, means riding upon a single band ot' the strip material between the reels and said apparatus for varying the speed of the liner reel in accordance with the tension in the strip material, and means for rotating the reels in either of reverse directions, whereby as the liner end is reached the directions of the reels may be reversed and the liner receiving reel may become the supply rcel as another band of strip material is removed therefrom.

lll() 5. The combination of a wind-off mechanism for strip material, with driven apparatus into which said strip is drawn, which comprises a rotatably supported supply reel 5 carr ing a plurality of laterally spaced ban s of said strip material, means intermediate the apparatus and said supply reel for driving the latter from said apparatus,

and means for guiding to the same point into said apparatus. a strip taken from an 10 transverse position on said supply ree whereby as the end of the strip is reached,

a strip from another transverse position v of the reel may be removed therefrom.

HORACE D. STEVENS.

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