US1644857A - Reel for strip metal - Google Patents

Description

Oct. 11 1927.

BVR; SHOVER REEL FOR STRIP METAL Filed March 1'1. 1927' wrm'ssszs INVENTOR Patented Oct. 11, 1927.

BARTON Bi. SI-IOVER, 0F IITTSBURGH, PENNSYLVANIA.

REEL. non STRIP METAL.

Application filed March 17, 1927. Serial No. 176,023.

The invention relates to reels for coiling strip metal, as for example when it emerges from a roll pass, the object being to provide a reel whereby the inner or entering end of a strip may be effectively engaged by a core of the reel without prejudicial distortion of the strip and without the use of complicated mechanism; and a reel from which a coiled strip may be readily removed either on a central core or free from any central support.

According to this invention there is pro- ;vided a reel having a core upon the periphery of which strip metal is adapted to be coiled. For causing the end of a strip to be engaged vby the core, there are provided means cooperating with the core for elongating or stretching the fibers of the outer face of the inner end of the strip. The effect of thus elongating the outer fibers of the strip is to cause the strip to turn inwardly upon and in conformity with the periphery of the core. This is preferably done by one or more pressure or feed rollers arranged to bear upon the core, or, more accurately, upon the outer surface of the strip as its inner end is applied to the core, provision being made to rotate the pressure roll at a peripheral speed higher than that. of the rotation of the core. While independent and separately controlled motors adapted to be driven at the proper relative speeds may be provided for rotating the core and pres sureroll, it is preferred to drive both. by a single motor. When the inner end of a strip has thus been wrapped once about the core, the strip becomes firmly engaged by reason of the snubbing action of the succeeding conp volution or convolutions of the strip, and accordingly it then becomes unnecessary to continue to elongate the outer fibers of the strip.

Unless the pressure roll is driven at a peripheral speed much in excess of that of 5 the core at the beginning of a coiling operation, the peripheral. speed of a partially coiled strip will exceed that of the pressure roll as the coiling operation proceeds. This will cause slippage to occur between the.

strip and pressure roll. resulting in abraking action upon the coil and a planishing of the strip. When independent motors are used for driving the core and pressure roll, a

this slipping may beprevented by varying the relative speeds of the motors, and when a single motor is used the slipping may be prevented by interposing a friction clutch in the pressure'roll guide, or by using a running ratchet or equivalent mechanism.

For facilitating the removal'of' a coiled strip from a core, the core is preferablyformed of segments adapted to be moved radially and held in their outward positions before and. during a reeling operation, and to be moved inwardly to release the coiled strip.

The strip may be coiled either directly upon the reel core, orfa supporting ring orcore may be applied to the segmental or otherwise formed reel core and be adapted to be removed with a coiled strip for forming a central support. i

The inventionis somewhat diagrammatically illustrated in the accompanying drawings, of which Fig. 1 is a side view of a strip reel, a portion of the frame .being broken away to show the construction of the'core; Fig. 2 a face view of the driving connection at the right hand end of the reel, as seen in Fig. 1; Fig. 3 a left hand end view of the reel and Fig. 4 an endview of a reel core having a coiling ring applied to it.

Having reference to the embodiment of the invention illustrated in the drawings, a frame 1 is provided with a shaft 2 ada ted to be rotated by a motor 3, the rotor of which is provided with a pinion 4 which meshes with a 'gear 5 attached to shaft 2. At the end of this shaft there are formed 'a plurality of arms 6,each of which supports a portion of a segmental reel 7. As illustrated,

each segment may be provided with a radialins 8 bearing upon the periphery of a cam 9 attached to a rod 10 mounted for rotation in an axial bore of shaft 2 This rod is adapted to be rotated by a hand wheel 11 attached to' one of its ends, or by applying a crank to its other end. When cam 9 is in theposition indicated in Fig. .3 the several segments of core 7 are held in their outermost positions, adjustable nuts or equivalent members 12 being attached to the inner ends of pins 8 to prevent the core segments from moving outwardly beyond the position in which they form a cylinder core. After the strip has been coiled upon the core, shaft 10 may be turned to cause cam 9- torelease the inner ends of core segments 8 so that they may move inwardly and a reeled strip be readily removed.

.In the drawings there is shown but a single driven pressure roll arranged to bear upon core 7 to elongate the outer fibers of a strip as its inner end is applied to the core. This roll is arranged to bear upon the top of the core at the point where a strip 16 issuing from a roll pass first contacts with the core. In this embodiment of the invention roll 15 is driven at a higher peripheral speed than that of core 7 by connections extending from motor 3. As shown roll 15 may be mounted upon a shaft 17 supported bybearings 18 formed at the end of arms 1-9 pivoted at 20 to frame 1. By a wabbler connection 21 permitting vertical movement of roll 15, shaft 17 is connected to a shaft 22 rotatably mounted ,in bearings 23 and provided at its end with a ratchet wheel 24:. Rotatably mounted on shaft 22 there is a pinion 25 meshing with gear 5 and provided with a spring-pressed pawl 26 for engaging ratchet .24. The arrangement here is such that at th beginning of a reeling operation roll 15 is rotated in the direction of the arrow 27 shown on it in Fig. 3 at a peripheral speed higher than that of core 7.

Thepressure of roll 15 upon the outer surface of strip 16, and its rotation at a higher peripheral speed than core 7, stretches the outer fibers of the strip and causes it to turn inwardly upon the periphery of the core as shown in Fig. 3, When a plurality of convolutions of the strip have been applied to the core, and as a result thereof the peripheral speed of the, partially coiled strip exceeds the normal peripheral driving speed of roll 15, the roll becomes frictionally driven by engagement with the strip so-that shaft 22 causes ratchet 24 to advance'upon the pawl 16. In this way there is no retardation of the rotation of the reel and no burnishing of the outer surface of the. strip. r

If desired, additional pressure rollers may be provided to cause the strip to conform to the core, and idle pressure rolls may be provided to assist in holding the strip upon the core. As shown in Fig. 3 an undriven pressure roll 30 is arranged to bear upon the lower portion of core 7, this roll being ro-' tatably supported by an arm 31 pivoted to frame 1 at 32 and weighted at 33 to hold it in hearing contact with the core.

In Fig. 3 strip 16 is illustrated as being coi d irectly ur n t e pe p e y of the segments forming core 7. In Fig. 4; the segm s of a core 7 engage the interior of a cylindrical ring or supplemental core 35 or refractory, metal or other suitable material, upon which ring strip 16 may be coiled. In removing the coiled strip from the core of Fig. 3 the strip is without central support, whereas in the removal of a coiled strip from the core of Fig. 4: ring 35 is removed with the strip forms a central support for the strip'to maintain it in proper form for subsequent heating or other operations.

In the operation of the reel, a strip 16 may be received directly from a roll pass, motor 3 being so'controlled that as the strip becomes coiled the speed of the motor diminishes to prevent undue stretching of the strip While engaged both by the rolls of the roll pass and of the reel. Such control of the motor may be effected manually or by using a motor having a speed characteristic which results in a reduction of speed in proportion to increase in load. The outer fibers of the mner'end of the strip are stretched by the action of roll 15 to caus the operation of my invention, and have somewhat diagrammatically illustrated and described suitable mechanism for practicing it. However, I desire to have it understood that, within the scope of the appended claims, the invention may be practiced otherwise than as specifically shown and described.

I claim as my invention! 1. In a reel for coiling strip metal, the

combination of a core, means for rotating the core to coil strip metal upon its periphery, and means cooperating with said core to elongate the outer fibers of the inner end of a strip of metal to cause it to conform to and be engaged by said core.

2. In a reel for coiling strip metal, the combination ofa core, means for rotating the core to coil a strip ofmetal upon it, a roll adapted to bear upon the outer face of a strip of metal applied to the core, and means for rotating said roll at a'higher peripheral speed than that of the rotation of said core'to elongate the outer fibers of the strip and therebycause its inner end to turn inwardly upon the core.

3. In a reel for coiling strip metal, the I combination of a core, means for rotating the core to coil a strip of metal upon it, a roll' adapted to bear upon the outer face of a strip of metal applied to the core, means coordinated with said core-rotating means to rotate said roll. at a higher peripheral speed than that of the rotation of said core to elongate the outer fibers of the strip and therebycause its inner end to turn inwardly upon the core.

4C. In a'reel for coiling strip metal, the combination of a core, means for rotating the core to'coil' a strip of metal uponit, a

WWY'Y roll adapted to bear upon the outer face of a strip of metal applied to the core, means for rotating said roll at a higher peripheral speed than that of the rotation of said core to elongate the outer fibers of the inner end of a strip, and means for preventing slipping between the surface of the roll and the outer face otthe strip after the inner end of the strip has become engaged by the 5. In a reel for coiling strip metal, the combination of a core, means for rotating the core to coil a strip of metal upon it, a roll adapted to bear upon the outer face of a strip of metal applied to the core, means "for rotating said roll at a higher peripheral. speed than that ot'the rotation of said core to elongate the outer fibers of the inner end of a strip, and means effective after the inner end of the strip has been engaged by the core for varying the rotation of said roll to prevent sliding between the surface of the roll and the outer face of the strip.

6. In a reel for coiling strip metal, th combination of a core upon the periphery of which strip metal is coiled, a motor, connections from said motor to said core for rotating the core, a roll bearing upon the periphery of said core, and means for rotating combination of a core u on the periphery of which strip metal is coi ed, a motor, connections from said motor to said core for rotating the core, a roll bearing upon the periphery of said core, and connections from said motor for driving the roll at a higher peripheral speed than that of said core.

-8. Ina reel for coiling strip metal, the combination of a core upon the periphery of which strip metal is coiled, a motor, connections from said motor to said core for rotating the core, a roll bearing upon the periphery of said core, connections between said motor for driving the roll at a higher peripheral speed than that of said core, and means for rendering said last named driving connections ineffective after the peripheral speed of the outer surface of strip coiled upon the core exceeds the peripheral speed of rotation of theroll.

In testimony whereof, I sign my name.

BARTON R. SHOVER.

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