US1833376A - Rolling mill - Google Patents

Description

I. J. SIMMONS Nov. 24, 1931.

ROLLING MILL Filed Oct. 29, 1930 5 Sheets-Sheet 1 I jawenior: k4 J. 5/MM0N5,

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ROLLING MILL Filed Oct. 29, 1950 3 Sheets-Sheet 2 a jmeyzior:

News 2 2 fight st nrss Em l7- mfifi OF CLAIETQN', PENNSYLVANIA nonnm'e hpplieatien filed October 29; 193th serial Ito, dllhfllhln tion are to improve upon the construction.

and arrangement of parts of rolling mills, and particularly mills of the type above speciiied, with a view toward facilitating the roll changing and adjusting operations snd'othen s wise rendering the mill more eficient end convenient in operation and msintenence.

With the foregoing ondother ob ects and advantages in view, the invention consists in the preferred construction and arrangement of parts which will be more fully hereinafter described and claimed:

In the druwings Figure 1 is a, view in elevation, partly in section, of a two high mill of the turntable type embodying the features of the invention, twoseparute and independent stands of reducing rolls being" shown p Fig. 1m is an opposite side View in eleve tion of one of the stands; V I so Fig. 2 is s plan vis t of the mill, showing four stands of rolls mount-ed on the turntable 3 Fig. 3 is a partial plan View, showing'the locking mechanism for the turntable; iind i Fig. dis a, plan View of the Mechanism for 5?; operating the housingscrews sndiby means of which the top roll of each stand isre'ised and'lowered. v v

The reference numeral 5 designetes the base of the turntable which is provided with a central bearing 6. The table, generally in dicated at 7, is formed with e spindle 8 which extends into said bearing" and is held against displacement by i1- bolt 9 and nut 10, thebolt 9 being hollow for e purpose to'be described.

lihe base 5 and turntable 7 areformed with cooperating inclined bearing portions 12 and 13, end therebetween a series of antifriction bearing; rollers is mounted and held against displacement by means of a cage 1e The turntable 7 has secured thereon house member. 3? on the upper face of the turn- 'tsble "2" end locks the letter ugsinst rotation,

ing shoes or buses 15, and mounted on these shoes are a plurality of stands of rolls each of which is generally designated at 16. Rice ducing rolls 1? and 18 are mounted in the Windows 19 of the housings 20 for theroll stands, said housings being open-topped and provided with cops 21 which are held in place by housing bolts 22 and keys 23,, b

An advantageous feature of the present in vention is the perticulur menus for rotating the turntable and shifting the spindles and coupling boxes by which. the reducing rolls are positively driven into a position which will permit the turntsble to be rotated end v which will now be described At one side of the turntable '2 are the usual er or pinion housings'Q l which house the airs of )inions through the medium of gs l which the mills ere dligen. lhe pinions, not shown, are provided withspindles 25 and 26, and said spindles ere connected to the webblers 27 of the reducing rolls 1? end 18 by means of coupling boxes 28 end 29 and spindles 30. The spindles 30 are supported on o, reciproceting carrier 31 which is formed with 15 a. foot portion .32 provided with teeth 33 which mesh with a, pinion 34;, the letter being connectedto e, motor 35, see Fig, 2, for moving the carrier 31 b rch endfo'rth in di engaging the spindles 3 0 and coupling boxes 28 from the webblers 27 of the rolls 1? and 18. The carrier 31 is formed withe'tepered centering projection 36, see Fig, 3 which extends into n tampered slot or recess formed in there being a member 3? for-each of the stands of rol s 15, so thet they may be successively locked into position for rolling motel. in order to notete the turntable, the letter isprovided with 38 on its periphery and is connected through the medium of suitable reduction gearing 39 end 4-0 with s motor 41. v

Whencit is desired to chsnge the rolls 1?" es and 18 in one or more of the mills 16, the

motor 35 is ectuuted to inove the carrier 31 book and retract the spindles 30 and coupling 7 boxes 28 cleer of the wabblers 27 on the ends of said rolls end this backward movement of mo the carrier also retracts the projection 36 from its coacting'slotted member 37 on the turntable 7 and permits rotation of the latter.

Another advantageous feature of the present invention is the screw operating mechanism for adjusting the rolls., ,This mechanism is mounted on the housing cap 21 for each stand of rolls, and comprises separate motors 42, each motor having'a worm on its armature shaft which meshes with a worm wheel 43 on a counter-shaft 44 mounted in suitable bearings on top of said cap 21. The end of.

each shaft 44 has a bevel pinion 45 on one end thereof which meshes with a bevel gearv 46 on the upper end of eachhousing screw The electrical connections for each motor 42 may extend to a suitable control platform, and from this point the screw down motors may be easily and conveniently controlled, to thereby provide for accurate lining of the rolls up or down whilethe mill is in operation.

Another feature of advantage is the par-.

ticular mounting of the'balancing mechanism for the top roll 18 of each stand. The housing 20 is provided with a recess 48 for accommodating the balance weight 49, which is attached to a chain or cable 50 passing over a sheave or pulley 51 and connected to the carrier bearing 52 for the roll 18. This recess 48 for receiving the balance weight 49 conserves space and effectively shields the weight. M

The pin or bolt 9 is hollow or formed with an axial opening to accommodate the water pipes used in cooling the rolls, oil and grease pipes and electrical conductors for the four stands of rolls mounted on the turntable, which is a further feature of merit in the present invention. i

- The operation of the mill will be readily understood. The parts, being in position, show that one of the four stands of rolls may be operated in reducing metal while the others are available for changing the rolls, lining them up or otherwise adjusting them without interrupting the operation of the mill. When it is desired to change the rolls, the motor 35 may be actuated to move the carrier 31 haclrwardly and retract the spindles 30 and coupling boxes 28 and 29 clear of the wabblers 27 on the ends of the rolls 17 and 18, this backward motion of the carrier also disengaging the centering projection 36 from .its coacting slotted member 37. The motor 41 is then actuated to rotate the turntable and bring another of the roll stands '16 driving connection between the wabblers 27 into position for rolling metal.

The motor 35 is then actuated to advance the carrier 36 into position and establish a and drive pinions in the housing 24 and center the-table 7 and lock the latter in firm operatmg position. 7

coupling said pinions What is claimed as new is 1. A rolling mill comprising a rotatable turntable, a plurality of roll housings mount: a ed on said table, reducing rolls supported by said housings, drive pmlons mounted adjacent said table means for coupling said pinions to said rolls, and a reciprocating carmembers for centerlng said table and looking a turntable, a

. the latter against rotation.

3. In a rolling mill, a turntable, a plurality of roll housings mounted on said table, reducing rolls provided with spindles mounted in said housings, means for driving said rolls, coupling members for operatively connecting said driving means to said spindles and a motor-operated reciprocating carriage for said coupling members, said carriage being provided with a tapered projection adapted to engage in a recess on said turntable'and lock the latter against rotation.

4. In a rolling mill-a housing, reducing housings mounted on said rolls supported by said housing,.means for driving said rolls including drive pinions, coupling means for said rolls comprising a pair of coupling boxes and an interposed spindle, a reciprocating carriage for said spindle, said carriage having a base portion I provided with a of a rack, a pinion meshing with the teeth on said base and a motor for operating said pinion to reciprocate said carriage todisengage said coupling boxes and spindles.

5. -A rolling mill comprising aturntable, a plurality of roll housings mounted on said turntable, reducing rolls provided with spindles supported by said housings, means for 1 rotating said turntable, drive pinions mounted adjacent said table, means for operatively coupling said pinions to said spindles, a reciprocating' carriage for moving said coupling means into and out of engagement with said spindles, said carriage being provided with a series of teeth on the under side of its base in the form of a rack, a pinion meshing with the teeth on said base and a mo or for operating said pinion to reciprocate said car nage. i

In testimony whereof, I have hereunto set my hand.

IRA J. SIMMONS;

series of teeth in the form

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