US1370063A - Rolling-mill - Google Patents

Description

W. H. SUMMER.

ROLLING MILL.

APPLICATION FILED n0v.25, 1918.

1,370,063, Patented Mar. 1, 1921.

3 SHEETS-SHEET lw. H SOMMEIL; ROLLING MI LL. APPLICATjO? min May. 725. 19w, '7

3mm Mar. 1,1921.

W. H. SOMMER.

ROLLING MILL.

APPLICATION FILED NOV-25.1918.

3 SHEETS-SHEET 3- 1,370,063. Patented Mar. 1,1921,

UNITED STATES rA ENT OFFICE. A

WILLIAM H. seamen, or rnoara, ILL NoIs, Assranon To 'lI-IE KEYSTONE STEEL a WIRE container, or PEORIA, ILL NoIs, A CORPORATION or ILLINOIS.

ROLLINGQMILL.

Application filed November 25, 1918. Serial No. 264,056.

To all 'wlwm it may concern:

7 Be it known that I, -WILInAIvI H. SUMMER, a citizen of the United States, a resident of Peoria, in the county of Peoria and State of Illinois, have invented new and useful Improvements in Rollingflvlills, of which the following is a specification.

This invention has reference toimprove-- Inents in continuous rolling mills for hot metal, and relatesparticularly to mills for rolling rods 'fromubillets received direct from a furnace The invention has for its principal object to overcome the excessiveloss inmetal, in mills of the character referred'to, resulting from cobbles occasioned by the failure of the billet to enter a roll. I

My invention comprehends a switch located in the path of travel of the billets,

by means of which, successive billets may] be caused to momentarily overlap and bediverted into different paths of travel; and a shear, preferably of that type known asa flying-shear, located in the path of travel of the, billets and which is operated immediately upon the occurrence of a cobble; whereby the cobbled end of the billet may be severed from the strand, the remainder of the billet continuing on through the switch, and being diverted into a different path of travelfrom that of the cobbled portion of the billet, and being wound on the reel; the loss thereby sustained by reason of such cobble being very small.

This application is a companion torthat filed by me on the 6th day of November, 1918,'bearing Serial No. 261,334, in Which I have shown and claimed the within described switch for diverting successive strands of metal from a common path or travel alternately into different paths of travel, whereby in a single-strand mill each successive strand of metal may momentarilyi overlap'its precedingfstrand and thereby inoreaseithe production of the mill.

That the invention may be more 't'ul ly understood reference is had to' the accompanying drawings, forming a part of this,

description, in which Figure 1 is a diagrammatic plan view illustrating a rod mill equipment, with my same, and the flying-shear operated to.

invention applied thereto, and showing a cobble occuring atthe last roll of the finishing rolls, the. switch having, been thrown immediately after the billet, entered the pens, and the flying-shear is operated, the rear end portion of the severed billet may enter the switch, overlapping the rear end of the cobbled portion of the billet and be diverted into a diiferent path of travel Specification of Letters Patent. Patented Mar; 1, 1921,.

to that ofthe cobbled portion of the billet,

without any. loss of, time, interference, or

great loss of metal;

Fig.3 is a view similar to 'Figs. 1 and 2,

but more nearly like Fig. 2, .andshows the complete cobbling of the severed portion of the billet, while at the same time the main portion of the billet is continuing through the mill and the finished rod is be ing wound on the reel;

Fig. 4b is a cross-section in plan, showing one form ofswltch-mechanism for diverting the rods;

Fig. 5 is a vertical cross-section through the switch; Fig. 6 is an elevation, partly in section,

as the same would appear on the lines 66- of Fig. 5, and Fig. 7 is a what similar to Fig. 1, except that I have shown'the switchand flying shear located diagrammatic plan view some.

between the first repeaterfand theflfurnace,

requiring two grooves in the repeater, as in the case of the second repeater.

Like characters of reference] denote corresponding parts throughout the figures.

In each of the Figs. 1, 2 and 3, the furnace is designated A; the two sets of roughing" rolls as B and C;.thetwo sets of finishing rolls as F and I; the repeater between the rollsG and F, as E, having the-groove D,

and the repeater between the rolls F and I, as H, having the grooves G and G. Be-

tween the furnace A- and the repeaterE the successive billets travel through the same E and rolls F; as F and F between the rolls F and repeater II; as G and G between the repeater H and the rolls I, and I as Gr and G between the rolls I and the respective reels J and K. A switch G is located adjacent the last roll of the finishing rolls I and is so arranged that two strands 100 guides or path of travel, and between the repeater E and reels J and K the billets mechanism 1, and preferably at the point.

where the billet enters the repeater E, I provide the flying-shear mechanism 2. I have not thought it necessary to detail the character of the. flying-shear 2, as their construction and mode of operation is well understood by those skilled in the art. I prefer, however, to illustrate a simple form of switch for diverting the billets as they leave the repeater E, which comprises the barrel 3' in which: is supported-to oscillate,-

the member 4 divided by a partition 5 to providethe funnel- like passes 6 and 7 Communicating with the small end of the pass 6; in the member 4, is an oscillatory guide 8 which also communicates with the guide F, and communicatingwith the small end of pass7 in the member 1, is an oscillatory guide 9 which also communicates with the guides F The member 4 may be oscillated by means of a lever 10, to alternately transpose the passes 6 and 7.

For convenience, and to better understand the operation of the mill, I have illustratedone billet by a dotted-line L, and illustrated another billet by a dash-dot line e.) M. With this explanation, the operation would be as follows-: VVe will as,- sume that the billet L on leaving the repeater E entered the lower pass 7 in the switch 1, and then followed a path of travel designatedibythe parts 9, F F, F, G, G,

I, G, G and was wound on the reel K, and

at any time after the forward end of the billet L entered the switch 1 and passed therethrough, but preferably immediately thereafter, the operator oscillatedthe memher 4:- totranspose the positions of the passes 6 and7- therein; however, without interfere ing with the path of'travel of the billet L from the switch through guides 9, F F, F*,

etc. Immediately" upon the rear end L of the billet leaving the furnace-A, the front end (shown cobbled)' of the billet M would leave the furnace and enter the rolls B, abutting the rear end L of the billet L. Although not shown, the rear-end portion of the billet L will describe quite an extensive loop in the repeater E, but the front end of thebillet M will cling close to-the groove D in the repeater'E and enter pass 6 1n the switch 1, which would then be where the pass 7 is now shown in Fig. 5, and. from such pass the billet M' would follow a path of travel designated by the parts 8 F; F, F, G, G I, G 'and bewound on the reel J. It is understood that the switch 1. to,

front end of billet M cobbled at the last roll of the finishing rolls I; whereas the rear end portion of the billet L continued on through said last roll and is being wound on the reel K. The operator, observing the cobble of billet M, immediately operates the flyingshear 2-, severing the billet M in two and also oscillates the member et, of switch 1 to transpose the positionsvo-f the passes 6 and 7 therein. This will permit the forward severed portion of'the billet M, which is of only a short length, to cobble at said last roll, whilethefiont end portion.

of the rear'sect-ion of the. billet M, will enter the pass-7, in the switch 1, which would then be where the pass6' was located, and be directed through the guide 9; and caused to follow a path of' travel designated by the Earts-F, 1 ,1 G", G, I, switch. G", guide and wound on the reel J, the switch G" being thrown after-the last end portion of the billet Lpasssed therethrough and in sufficient time to divert the uncobbled portion of the billet M to the guide G and reel J, as shown in Figs. 2} and 3'.

. It must be obvious that without the.

switches: G, and 1 and particularly the.

latter, and also: without the shear 2, in a mill of the character shown, when a cobble occurs, the entire billet would cobble creating a considerable. loss, notlonl y of metal),

but also in the time'required to remove the massof metal andopen up the passessoas. to permitanotherbillet to be rolled'. With the use. of my invention" when a cobble occurs, the operator acting quickly may reduce the loss: in metal toa min1mum,. and. without loss; of time, as; they operation at."

the shear 2 and 'th'e switch will" permit. the

rear section of the severed portion of'the billet to continue on through the mill, overlapping, at least momentarily, thev rear porition of the cobbled end portiomof the billet and being diverted by the switchv G,

may be wound on one ofthe reels, ,and.di1r.-

ing such continuedoperatiomjhe cobbled mass. may be removed As previously stated",', Iam not partial-=- larly concerned about the detail construction of the shearv 2, as any one. of several well known makes may beemployed aneither am I concernedabout the detailed construction of the switch G or the switch 1, ex,

1,2 and 3 adjacent the point where the billet' leaves the repeater E, and the flyingshear 2 in said Figs. 1, 2 and 3 adjacent the point where the billet enters the repeater IE, it is possible to locate the switch 1 where the flying-shear 2 is now positioned, and to locate the flying-shear at a suitable point between the repeater E and the furnace A. Such an arrangement is shown in Fig. 7. It only is necessary to provide the repeater E with two grooves, D and D, arranged in a manner similar to the arrangement of the grooves Gr and G on the repeater H. The switch 1 is constructed as heretofore described and open ates in the same way it is intended it should operate when located as shown in Figs. 1, 2 and 3.

What I claim is a 1. The method of preventing excessive cobbling of metal strands in a rolling mill, which consists in severing a strand into sections to separate the cobbled portion of the strand from the uncobbled portion, and diverting the separated portion of the strand, during a continuous operation, into a different path of travel.

2. The method of preventing excessive cobbling of metal strands in a rolling mill, which consists in severing a strand into sections to separate the cobbled portion of the strand from the uncobbled portion, and diverting the separated portion of the strand, during a continuous operation, into a different path oftravel, and.

overlapping the sections of the strand at the point of diversion.

.3. In a mill of the character described, in combination with the reducing rolls and reels, means for diverting strands alternately to different reels, other means for diverting successive strands-from a common path of travel alternately into different paths of travel, and means for severing a billet in two prior to the severed portions of the billet reaching said second mentioned means.

4-. In a mill of the character described in combination with the series of rolls and winding reels, a switch for diverting strands alternately to the. diflerent reels, a second switch for diverting successive strands from a common path of travel alternately into difi'erent paths of travel, and a shear for severing a billet in two prior to the sheared portion of the billet reaching said last mentioned switch.

5. In a mill of the character described, in combination with the series of rolls and winding reels, a switch beyond the last roll of the series for diverting strands alternately to the different reels, a second'switch interposed in the series of rolls for diverting successive strands from a common path of travel alternately into diflerent paths of travel, and a shear for severing a billet in two prior to the sheared portion of the billet reaching said last mentioned switch.

6. In a mill of the character described, in

combination with the series of rolls and winding reels, a swltch adapted to receive successive strands from a common path of travel and divert the successive strands alternately into different paths of travel, said switch having two passes which are adapted to be transposed at the will of an operator, and a shear for severing a billet in two.

In witness whereof, I' have hereunto affixed my hand this 19th day of November,

WILLIAM H. SOMMER.

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