US2116121A - Apparatus for coiling material - Google Patents

Description

May 3, 1938. A. B. MONTGOMERY APPARATUS FOR COILING MATERIAL Filed DeG. 2l, 1955 2 Sheets-Sheet l INVENTOR Patented May 3, l93

UNITED STATES PATENT OFFICE APPARATUS FOR COILING MATERIAL Alonzo '3. Montgomery, Youngstown. Ohio, al-

slgnor to The Cold Metal FroeelsCompany, `Youngstown, Ohio, a corporation of Ohio Application December 21, 1935, Serial No.` 55,662

s claims.' (c1. 24a-1s) This invention relates to apparatus for coiling material and. in particular,` to va, coiling reel adapted to receive hot strip material and coil it ywithin a heating furnace as it emerges from a l '6 rolling mill.

This general combination of apparatus is' disclosed in United States patent to Steckel No. 1,977,214. l

Coiling reels for applications of the character mentioned have been made heretofore by disposing a pair of discs on a shaft andwelding thereto blades extending parallel to the shaft. Certain dilculties were encountered in the use of such reels. In the first place, it issometimes necessary to stop the reel for a considerable period and in such event, the blades on diiferent portions thereof are heated to different temperatures since the furnaces are fired from below. The resulting unequal expansion of the blades has introduced internal stress and has actually go caused joints between the blades and the discs to be fractured. Another objection was that it was diillcult to prevent the insulating material disposed around the shaft from sifting out at the joint between the discs and a protective sleeve surrounding the shaft.

, I have invented a coiling reel which successfully overcomes the aforementioned objections, and in addition; is characterized by further novel and useful features. In accordance with my invention, I position a pair of hubs in spaced relation on a supporting and driving shaft. I mount discs on the hubs in driving relation therewith. A protective sleeve extends from one disc to the other and is tightly secured to both. Blades extend axially between the discs and are secured to the outerv sides thereof by connections permitting free expansion and contraction of the blades and the removal of any one blade independently of the others. For a complete under- 0 standing of the invention, reference is made to the accompanying drawings illustrating a present preferred embodiment. Inthe drawings:

Figure 1 is a longitudinal sectional view through a coiling reel in accordance with the invention;

Figure 2 is a transverse sectional view along the line II-II of Figure 1; line I--I of Figure 2 so indicates the plane on which the section of Figure 1 is taken;

Figure 3 is a transverse sectional view through x one of the blades;

Figure 4 isa view similar to Fig. 1 showing modified form of the invention;

Figure 5 is a sectional view along the lin V-V of Figure 4;

Figure 6 is a view similar to Fig. 3 showing the construction of the modied form; and

Figure 7 is a sectionalv view showing a portion 5 of Fig. 4 to enlarged scale.

Referring now in detail to the drawings, the side walls oi' a furnace of any suitable type are indicated at l0. The furnace may be such as that shown in the Steckel patent above menl0 tioned. A shaft extends through the side walls i0 and is journaled in suitable bearings outside of the furnace (not shown). The shaft is preferably arranged to be driven, for example, in the manner shown in the patent referred to. Hubs 15 I2 and I3 are disposed on the shaft Il in spaced relation and are keyed thereto. Discs I4 and it are mounted on the hubs I2 and i3. The discs and hubs have interiltting projections such as teeth and slots I6 and I 8' whereby toprovide 20 driving connections therebetween. A tubular sleeve i1 'surrounds the shaft Il and extends between the discs Il and l5, being securedto the hub portions I4' and I6' thereof.` 'Ihe spacerbei tween the shaft ii and the sleeve I1 isfwelded v25 with thermal insulating material il.

. Blades I9 extend between the discs i4 and I5. The blades have end portions 20 disposed at right angles to their length. lThe body portions are hollow and have openings 2l on the inner sides a0 thereof. A One edge of the blades is relatively sharp as shown at 22, while the other edge is rounded. The end portions 20 of the blades are formed into hooks 23 at one side, holes or eyes 24 being formed in the other s ide.

The discs Il and l5 have a plurality of projections 25 provided with spaced holes 26 and 2B. 'Ihe blades I9 are secured to the projections 25 by pins 21 and 28 as shown in Figure 1. 'I'he end portions of the blades lie on the outer sides 40 of the discs. Each blade has bosses 25' engaging the edges of the discs to take the collapsing load of the coil winding oiI the pins. n l

The pins 21 are permanently secured on the `discs as by welding at 29. In applying a blade to the reel, the hooks 23 are first engaged over the protruding ends of the pins 21. The blade is then swung about the pins 21 until the holes 24 are in alignment with the holes 26. I'he pins 28 w arethen inserted and lock the blade in xed position relative to the discs. 'I'he pins 28 are secured in position by cross pins I8 extending through the pins 28 and projections on the end portions 20. Il

When the blades have all been secured to the discs, the resulting reel is driven so that sharp edges 2 2 of the blades are leading. If a length er het strip is then directed substantially radially of the reel, it will enter between two adjacent blades and be bent partially around the second of the two, thus hooking the leading end of the strip secured to the reel for coiling.

It will be clear that the mounting of the blades on the discs permits the former to expand freely and to diil'erent extents at diil'erent points on the peripheries of the discs. Thus, if the reel remains stationary while the ring of the furnace continues, the lower blades may expand more than the upper blades without introducing'any stress whatever into any part of the reel. The blades have a limited free movement axially of the reel since the hooks 28 slide on the pins 21 ilxed to the discs, and the pins 28 secured to the end portions 20 of the blades can slide in their holes 28 in the discs. In case of breakage, furthermore, a blade can easily be replaced without disturbing the remaining parts of the reel. This is a-marked advantage over the permanently welded construction of the reel previously mentioned. To remove a blade, it is necessary only to knock out the cross pins 30, remove the pins 28, and lift the hooks 28 oil the pins 28.

Since the protective sleeve il surrounding the shaft between the discs is tightly welded to the latter, the insulation I8 is permanently enclosed in the space between the shaft and the sleeve. 'I'he various parts of the reel will preferably be made of heat resistant alloy since it must operate at elevated temperatures, such as 2000* F., when used in the furnace of a hot mill such as that of the Steckel patent.

According to a modification of the structure just described, a shaft 35 is provided with toothed portions 38 and discs 88 having central bores slotted to receive the teeth 88 are disposed on the shaft. The teeth have shoulders 31 against which the discs 88 abut. The discs are held in abutment by rings 38 welded to the shaft. The discs 88 have projections 40 thereon, as in the structure of Figures l through 3, and these projections have spaced holes at 4i therethrough. Pins 42 are inserted in the holes 4I and are secured in position by welding, as shown at 48.

Blades 44 similar in general to those shown at I8 have lugs 45 extending from points adjacent the ends thereof. 'Ihe lugs 45 are bored at 48 whereby the blades can be mounted on the discs by alining the holes 46 with the pins 42 and moving the blade axially so that the pins enter the holes. The blades are secured in position by a split ring 41 which seats in an annular groove 48 adjacent the end of the pins 42 on the righthand disc 38. The halves of the ring 41 are held in place by a holding ring 49 welded thereto. The blades have bosses 50 thereon adapted to engage the edges of the projections 40 for the reason already explained, viz., to relieve the pins of the collapsing load imposed by the winding of a coil of hot strip on the reel composed of the shaft. discs and blades.

By securing the pins 42 firmly to the projections 40, I avoid the possibility of the pins becoming loose in the holes 4I due to the shock and stress normally experienced in the operation of a coiling reel.

The shaft 3B is provided with an enclosing sleeve I 1 nlled with thermal insulating material I8 as in the structure of Fig. 1. When it is desired to remove one of the blades 44, it is only necessary to knock the locking ring 48 of! the split ring 41, and after removing the latter, to shift the blade longitudinally oi! the pins 42.

Although I have illustrated and described but two preferred forms of the invention, it will be understood that changes in the construction illustrated and described may be made without departing from the spirit of the invention or the scope of the appended claims.

I claim: f

l. A coiling reel comprising a pair of spaced discs disposed coaxially, a plurality of blades extending between said discs, said blades having end portions at right angles to their length, said end portions each having an eye and a hook formed therein, the hooks adapted to engage pins permanently secured to the discs and the eyes adapted to receive removable pins passing through the discs.

2. A reel for coiling material comprising a pair of spaced, coaxial discs with blades extending therebetween, hooks on said blades adapted to engage projections on said discs, and removable means securing the blades and discs together to prevent disengagement of said hooks.

3. A reel for coiling material comprising a pair of spaced, coaxial discs with blades extending therebetween cooperating hooks and projections on said blades and discs, and removable means for preventing disengagement of the hooks and relation, and a plurality of blades extending between said discs having angularly disposed portions, hooks on said portions removably engaging projections on said discs, and connecting pins extending through said portions and discs whereby the former can expand or contract independently of the latter.

5. A reel for coiling material comprising a pair of spaced, coaxial discs with blades extending therebetween, axial pins disposed peripherally oi' said discs, hook means on said blades engageable with said pins, and removable means for holding said means in engagement with said pins.

6. A reel for coiling material comprising a pair of spaced coaxial discs, a blade extending therebetween, pins extending axially through the discs, hooks on the blade engaging said pins, and removable pins traversing said blade and discs for securing said hooks in engagement with said firstmentioned pins.

ALONZO B. MONTGOMERY.

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