US2610533A

US2610533A - Deflector for continuous mill

Info

Publication number: US2610533A
Application number: US114480A
Authority: US
Inventors: Gust S Rask
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-09-08
Filing date: 1949-09-08
Publication date: 1952-09-16
Anticipated expiration: 1969-09-16

Description

con@ i Sept. 16, 1952 G 5, RASK 2,610,533

DEFLECTOR FOR CONTINUOUS MILL Filed Sept. 8. 1949 2 SHEETS-SHEET l G Fiati G f haven/502: Z0 @U57 5. Enf/K,

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Sept. 16, 1952 G. s. RAsK 2,610,533

DEFLECTOR FOR CONTINUOUS MILL Filed Sept. 8. 1949 2 SHEETS-SHEET 2 Inventar: uf A? 5K,

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Patented Sept. 1.6,` 195,2

Y Gust S. Rask,v Duluth, Minn.

8, 1949, Serial No. 114,480

Application September 1 Claim.

This invention relates to a deflector for a con- (ol. sli-51) tinuous mill and in particular to a deflector for deflecting bars out f the pass line of a continuous roughing mill.

In a roughing mill, which consists of a number of roll stands arranged in tandem, the billets or bars are fed into the first roughing mill in fairly close succession, so that there are severalbars in the roughing mill at the same time. At times a bar passing through the mill will cobble up in one of the stands and can not be removed before the nexty succeeding bar reaches the cobbled bar. When this occurs considerable damage will occur to the guides and rolls. Also it makes it very diflicult to remove the cobbled bars so that a long shut down period is required to remove the bars and start the mill in operation.

It is therefore an object of my invention to prevent more than onebar from cobbling at the same time.

Another object is to decrease the amount of damage done to the rolls and guides.

These and other objects will become apparent after referring to the following description and attached drawings in which:

Figure 1 is a top plan view of my device;

Figure 2 is a side elevation of Figure 1 showing a bar passing through the mill;

Figure 3 is a view similar to Figure 2, but showing a bar being deected from'the pass line;

Figure 4 is a sectional View taken on the line IVe-IV of Figure 2; I

Figure 5 is a sectional View taken on the line V-V of Figure 3; and

Figure 6 is a View of a release partof my device.

Referring more particularly to the drawings the reference numeral 2 indicates one of the roll stands of a continuous bar mill. Such mills may have about nine stands, the stand indicated by numeral 2 being stand number 3. Spaced from the roll stand 2 is a second roll stand 4. A bar or billet B being rolled passes through the rolls of stand 2 through a bell guide 6 to the rolls of stand 4. Extending from the roll stand 2 to the bell guide 6 beneath the path of travel of bar B is a channel member 8 which is preferably attached to the housing of roll stand 2. A deflector chute l0 which is also located between

thc roll stands

2 and 4 is provided with a notchedout portion I2 at one end for receiving a fulrod which forms 4crum plate I4, this latter being attached to, the

housing of roll stand 4. The other end of the deflector chute l0 is normally suspended above` the roll pass from a cross beam I6 which extends between the

roll stands

2 and 4 and is supported thereby. In order to provide clearance forV the bars B the beam I6 is arranged at an angle as shown. Clearance can also be provided by using two spaced apart beams. Extending around the 2 beam I6 and supported thereby is a chain I8, the ends of which extend below the defiector I0. A release rod 20 extends through a link in each end of the chain beneath the deflector IB to support the deflector.'

The operation ofthe device is as follows: When a cobble occurs in a bar B after it has 'passed through the rolls of roll stand 4, the operator will pull the release rod 20 from the chain I8, thus permitting the end of the deflector I0 to drop to the beam 8 as shown in Figure 3. The succeeding bars, instead of passing through the roll stand 4, will beV deflectedv upwardly away from the roll stand 4 as shown in Figure 3. This prevents further cobbling in the mill and enables the succeeding bars to be removed easily by the mill crane. If desired additional defiectors can be placed between other roll stands.

While one embodiment of my invention has been shown and described, it will be apparent that other adaptations and modifications may be made without departing from the scope of the following claim.

I claim:

A continuous rolling mill for rolling elongated articles including a pair of roll standsarranged in tandem and a deflector between said roll stands; said deiiector comprising an elongated deector chute located between the roll stands,

ymeans for pivotally supporting the end of the chute adjacent the second of said roll stands and above the roll pass, a beam beneath the pass line. a beam above the pass line, means suspended from the last named beam for releasably supporting the other end of the deflector chute above the roll pass, said last named means being adapted to release the said second end of the chute allowing it to drop to the first named beam and position REFERENCES CITED 'The following references are of record in the file of this' patent:

UNITED STATES PATENTS Number NameV Date 895,442 Edwards Aug. 11, 1908 Y 1,184,519 Conklin May 23, 1916 y 1,407,391 Downen Feb. 21, 1922 1,554,551 Biggert et al Sept. 22, 1925 2,401,661 Pickens June 4, 1946