US1833097A - Ring rolling mill - Google Patents

Description

Nov. 24, 1931. J. H. TAYLOR 1,833,097

RING ROLLING MILL Filed March 26, 1950 will l6 QQEW 555 72295 fi a/Z 5 /0r Patented Nov. 24, 1931 UNITED STATES JI'AIMIES HALL TAYLOR, 01 OAK PARK, ILLINOIS RING ROLLING MILL Application filed March 26, 1930.

This invention relates to a ring rolling mill and concerns itself more particularly with the structure and arrangement of the rolls whereby the fin or fringe on the outer periphery is eliminated.

The invention comprises the novel structure and combination of parts hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings which illustrate certain preferred forms of this invention and in which similar reference numerals refer to similar features in the different views:

Figure 1 is an elevational view of a plurality of rolls forming a ring pass and involving this invention.

Figure 2 is likewise an elevational view of a plurality of rolls defining a ring pass 20 and illustrating a modified form of the invention.

Figure 3 is a view similar to the foregoing illustrating a further modified form of the invention.

Figure 4 is a diagrammatic view illustrating the invention.

In the drawings, there is shown only the rolls that constitute the ring pass, and a portion of their shafts. It will be understood that the rolls may be mounted in a machine according to well known practice.

In Figure 1, the ring pass is formed by an upper conical roll 1 having a rear concave face 2, an exterior peripheral roll 3, a lower beveled roll 4 and an interior peripheral roll 5 concentric with the roll 4 and of a flaring contour. The shaft 6 of the roll 1 is slightly inclined in a downward direction and the shaft 7 of the roll 4 is slightly inclined from 4 the vertical to bring the bevel surface of the roll into a substantially horizontal plane. These rolls form a closed ring pass through which a ring 8 is shown passing. In the past, fins or fringes have usually been formed upon the upper outer corner 9 of the ring and it was necessary to use fringe removing rolls to eliminate such fins or fringes. According to this invention the roll 1 is concave upon its rear face for receiving the upper edge of the roll 3 so that the rear edge 1a of the roll Serial No. 439,239.

1 Will overlap the outer edge of the ring and will roll down any fins or fringes that are formed.

In Figure 2, the roll 1 and the roll 3 are similar to the corresponding ones in Figure 1. However the lower roll 10 is shown as having a flat face for engaging the ring and the interior cylindrical roll 11 is a continuation of the shaft 12 which carries the roll 10 and which is vertically arranged.

In Figure 3. the upper roll 13 is stepped as indicatedat 14 for rolling a flange or rib on the ring 8a. In this form the exterior peripheral roll 3 is similar to the one in Figures 1 and 2. The lower roll 15 however is of a. different character. It'is a freely floating roll that is obliquely mounted upon a vertical shaft 16 as shown in my Patent No. 1,7 26,77 7 the upper endof which serves as an interior roll 11 as in Figure 2. It will be noted that the roll 13 has a rear concave face 17a for receiving the upper edge of the roll 3 as in the other forms. i

It will be apparent that in accordance with this invention, separate fringe removing rolls are unnecessary for the outer fringes since the outer fringes on the ring are rolled down or smeared back by the reducing rolls that form the ring pass.

In referring to Figure 4, it will be noted that the ring 8 is shown in contact with the outer peripheral r0113 upon a line 17. The ellipse 18 represents a projection. of therear edge 10. of the; upper roll upon a horizontal plane. From the tangent line 17 the ellipse curves away from the ring 8. This indicates that the rear edge 1a of the upper roll extends slightly beyond the outer edge 19 of the ring upon each side of the tangent line and must roll down or smear back any fin or fringe that is formed. Now if the rear edge 1a of the upper roll were bevelled forwardly as in the prior art, the roll would not overlap the outer edge of the ring upon opposite sides of the line of tangency 17 with the result that afringe or fin would be formed. r

It will therefore be appreciated that a novel construction has been provided for eliminating a fringe or fin from the upper outer edge of the ring.

I am aware that many changes may be made, and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon, otherwise than necessitated by the prior art.

I claim as my invention:

1. In a ring rolling mill, a lower roll, an upper conical roll having a rear concave face, an exterior peripheral roll overlapping the concave face of said conical roll and an interior peripheral roll, said conical roll overlapping the outer edge of said ring upon opposite sides of the line of tangen'cy of said exterior peripheral roll.

2. In a ring rolling mill, a plurality of rolls forming a ring pass, including an upper conical roll having a concave face for receiving a portion of another roll, said conical roll overlapping the outer edge of said ring upon opposite sides of the line of tangency of said other 'roll and ring for rolling down the fringe.

3. Ina ring rolling mill, an upper conical rol-l having a downwardly inclined axis and a rear bevelled face, an exterior peripheral roll adapted for overlapping the rear face of said conical roll, a lower roll and an interior peripheral roll, said rolls being mounted for adjusting the pass formed thereby.

a. In a ring rolling mill, an upper conical roll having a downwardly inclined axis and a rear concave face, an exterior peripheral roll overlapping said concave face, a lower roll and an interior peripheral roll forming an adjustable pass and said conical roll overlapping the outer edge of said ring on opposite sides of the line of tangency of said exterior peripheral roll with said ring.

5. In a ring rolling mill, a lower roll, an upper conical roll having a rear concave face, an inclined shaft for supporting said conical roll, an exterior peripheral roll overlapping the concave face of said conical roll and an internal peripheral roll, the relation of said conical roll and exterior peripheral roll being'such that said conical roll will obliterate or smear back any fringe formed on the outer and upper edge of the ring.

6. In a ring rolling machine, a plurality of rolls defining a ring pass including an upper conical roll having a rear concave face and a peripheral roll overlapping the concave face of said conical roll whereby said conical roll will obliterate or smear back any fringe formed on the upper outer edge of the ring.

In testimony whereof I have hereunto subscribed my name at Chicago, Cook County,

Illinois.

JAMES HALL TAYLOR.

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