US1919202A - Rolling mill - Google Patents

Description

July v25, 1933.

ROLLING MILL vFiled May 27, 1931 4 Sheets-Sheet l J. R. COE

ROLLING MILL July 25, 1933.

Filed May 27, 1931 y 4 Sheets-Sheet 2 July 25, 1933. J. R; COE 1,919,202

ROLLING MILL Filed May 27, 1951 4 sheets-sheet 3 J.R. coE

ROLLING MILL July 25, 1933.

Filed May 27. 1931 4 Sheets-Sheet 4 l' I lll gin/mtu MA dttomu's, v

UNiTED 'STATES a minimum of labor.'

means of effectively y1n comparatively thin Patented July 25,4 1933 Lunnis n. COE, OF WATERBOR- Y, CONNECTICUT, AssI'GNOR PATENT-foulerj -TO THF.v AMERICAN BaAss V COMPANY, OF WATERBURY;CONNECTICUILA CORPORATION or,CONNECTICUT ROLLING MILL A Applicamn and` kai? 27.

` This inventionrelates to rolling mills, partilcularlyy rolling mills for'rolling strips of flat metal which can be wound or coiled on s oolsorrecls to facilitate handlingfand an oliject of the invention is to provideasimple handling this metal .in heavy c oilsto and. from the rolling mill with this metal which will protect both the edgers and surface of the metallfrom damage and waste that would naturally occur if the metal A gauges were transported and handled in open coils Without, protection.

l lar value in connection with fourl'iigl'i,l and 'tof mill, but may type of rolling mill.

yerations, and it is also of Athe ability of a In the accompanying drawings I have connection with i substantially on llinep2-2 of which the metal can be passed through the rolls many times Without intermediate Aannealing and cleaning Opsimilar rolling mills in rolling coils of 4 man to lift or carry. u

shown the device as used in y a four-high rolling mill, but of course it is not necessarily limited to use with be used `with any similar lVth the-.foregoingand other objects in Vview the invention consists incertain novel features of construction, arrangement of devices', and method of handling the metal, as

will be more Afully disclosed in connection with theraccompanying drawings. .In these drawings:

Fig. 1 is a top plan view. showing somevvhat diagrammatically the arrangement.. of the devices in connection with a rolling mill forv handling the metal to advantage;

2 is a detailed verticalysection taken Fig. 3 is a side elevation looking fromthcI right ofF ig. 1 and with parts of the `roll shownin section; i 1

- Fig. 4 is a top plan view of the Winding f Fig.

mechanism, and showing the roll housings m section; f g

Fig. 5` is a vertical section through the rolls and a portion of the transfer coil mechanism It is also an object of the invention to provide a meansof handling This method and Vapparatus isof particu special value Vwhen great weight which is beyond this type `ldriven from the .ing mechanism by f for example as a chain grammatically` at 17 in Fig.=4;operating The. drum 16 :is adapted .to carry areel 'or spool 20 -On y which the metal is wound.` The i931. serial No.' 540,301.5. Y

i indicatingA the coil mechanismfin elevation;

1g. 6is a partial section. and apartial side `elevation of a coiling vdrum and transfer mechanism, the section beingsubstantiallyon linej6-6 of Fig.f5; .f 1 i Fig. 7 kis a top plan view of atransfer car ythat may` be used; Y *1 f Fig. 8 is end elevation thereof; e

L gig. 9 is a top plan view-Of another car;

. Fig. 10 is an endviewfthereof. i

. They method and operationof' rolling the metal according to this invention. consistsin lst.v Winding the metalon heavy. spools or j reels as it leavesthe rolling mill'` v emoving the .loaded spool. from the .v 2nd. R Winding Vblock and i v 3rd. Receiving aneempt storage and placing it on t The above operatiOns-all-take place on the `back or delivery side-Of therolls.

or shaft to a vstorageftrack;

spool Yfrom ,-the

Y y 4th. Unwinding the `metalgfrompa,spool or reelrotatably mounted on atransfer'car;

place `the empty spool in a storage space' and 6th,.l Receiving al loaded spool from storage space and transferring 1t: to the proper position in front of the rolls. y

. .l These later Operations take place onV the front or receiving side of. the rolls...`

veferring more particularly to'i'FigL-` ,1, a

rolling mill is indicatedat 1-1.l 'The mill .shown is a fourhigh mill having relatively .large backing rolls 12. for `the relatively small working rolls `13 `suitably .mounted in .bearings in the housing 14, with thework rolls driven .fromany suitablemeans notshown, through couplings indicated rvdiagramatically at 15. 1 Tothe rearo the rolls is a winding drum any suitable means such drive indicated ydiathrough a friction clutch y18.v

L 'dri-,ve for the .shaft 19 'is arranged to drive the spool at` a somewhat higher surface speed than -thesure winding drum..

5th. Then moving thgtransfer car back to.

roll 'shaft or the'roll `drivis indicated at Q3'i'n Fig.

spool after it from this track and storage track Q8 in alignment with the roll- `second vstorage track ..-adapted to support a of the. working rolls so as to hold and taut. andto Wind it tightly on the spool. the clutch being adapted to compensate for this higher surface speed. brake mechanism Q1 may be provided to stop rotation of the shaft 19 and the loaded face speed the metal straight b v releasing the clutch 9.2, so that after a spool is filled bringing itto rest'so that it can be removed from the winding drum. The Winding mechanism and the means for removing theloaded spool and'placing an empty spool in its place on the winding drum willbe more fully described later.

Thisspool removing and transfer deviceI 1, and it is adapted to transfer a loaded spool from the full line. position in backof the roll shown in F ig. 1 to a position in alignment `\vith the storage track Q-Lrunning at substantially right, angles to the path of movement of the transfer device.v Thus this transfer mechanism Q3, after removing the filled spool from the winding drum 16. transfers it to the end of the storage track 24 o'n-to which it may be easily rolled from this transfer device as indicated in dotted lines at 20 in Fig. Q. This storage track can be made ofany length desired so as to hold at one time as many spools as itis found l desirable. "This track 24 is for storing loaded Atone side of it and between it andI spools. the rolls is a parallel storage track storing empty spools 20e-a.

"At the rear end of the'storage track 24 is a cross transfer track 26 on which isa transfer mechanism such as a transfer car 27. This car maybe moved to alignment with the rear .end of the track 24 to receive a loaded spool transfer it to the for ing mill 11. At the forward end of this the rolls is a second transfer track 29 leading between the front end of the storage track 28 `and the rear end ofthe storage track 25.. for the empty spools. Movabler in this transfer track 29 is a conveyor means for empty spools which is valso loaded spool or reel while' the metal is being unWound 4therefrom to pass' through 4the rolls. mechanism may be of any'suitable type, but

is shown as a car 30 carrying rollers 31 on which the flanges of the spool or reel may rest, or the surface of the wound metal may be supported, to permit the spool or coil to turn while the metal is being unwound therefrom.f Then this car-.1s in the position o f Fig. 1 a loadedspool may be rolled on to it from the storage tfack 2S, and after the metal f has been removed from this spool the car 30 Mmay be-shifted on the transfer track Q9 to a position in lalignment with the rear end of the-storage track 25 so that the empty spool is disconnected from the drive.

a. minimum of time is lost in Y .flush with the outer surface of the f members may 28 audbetween it and 4when the arms eve rytlnng 1s clear about thespool to permit This transfer may be rolled from this car on to this storage space or track. Any suitable guide rolls 32 and 33 may be provided to guide the metal from thc'spool on the transfer mechanism 30 to the inlet side of the rolls.

Referring now more particularly to Figs. 5 and `f`- it will be seen that the winding and blocking mechanism comprises a drum 16 mounted on a shaft 19y (Fig. 4) driven as above described.y This block is provided in its surface \vith a plurality of longitudinal keyways or grooves 34 to receive a key or similar driving means 35 on the inner surface lof vthe lreel voi-spool 36. In the present instance the members 35 are shouldered studs riveted'to the body of the reel so as to project in wardly from the inner surface thereof and extendinto one of rthe keyvvays 34, but lie spool so as not to mar the surface of the metal Wound thereon. The spool valso has fianges"37-`at its opposite ends to guide the metal during the' winding and unwinding operations, vand also to protectthe edges of the metal during handling.

' Asthe metal comes through the rolls 13 it is guided by the guides 38 and 39 to the guide members and 41 of the winding and blocking mechanism, which as shown `in dotted lines Fig. 5 extend around and embrace the body of the spool, and as the. strip of metal indicated by the dot and dash line 42 passes between these members and the spool its free end is guided around the s ool -Whichis being rotated by its drivev me@ anism, and after that is overlapped a few times, the guide be removed from thespool to the full line position and the strip Willcontinue tobe'l lwound around the spool. The guide members 40 and Vreduce the friction of the metal and assist in causing the free end tolbe wrapped around the spool and prevents its marring the surface of the metal. The guide member 40 is pivoted pivoted at '45 on'suitable shafts which are connected by the gear segments 46 and 47 so that they move together. It will be seen that are in their full line position the use of the means to Withdraw the filled spool from the drum to transfer it to a storage space,'and to permit mounting of an empty spool on 'the drum.

The body of the spool 36 is purposely made of a large vdiameter to enable it to hold a considerable weight of metal without.v material difference between the inside land outside diameters of the coil to reduce? the amount of slippage in the friction 'clutch 18 to a minimum, and to maintain a practically'uniform tension on the meta-l'duringthe rolling and coiling operation. As this spool or reel must be vof very heavy construction to withstand the crushing effect-of the metal -f 41 carry rolls 43 which i .i

wrapped veryftightly around it, andalso toi resist flange wear caused `by the rolling durf1 ing the transfer and .unwindingv operations,.

, vious rolling or annealing operation: 1in man to lift or carry them even when empty, -and mechanical means istherefore provided forhandling bothempty and loaded spools.

they are soheavy that .itv is impossible for a or reels to and from the winding and unwindlng positions atthe rolls.. .i

mechanism 23including a car indicated-,asp

. For loading an empty spool `or reel on to the `winding drum and removing a loaded spooll from this drum I. employ a transfer a whole at 48 which is `arranged to slide back and forth to and from the: winding drum., This car has wheels '49 running in tracks 50.1

and is actuated by any suitable means, such as an air cylinder 51 operatinga piston con. nected to a piston rod 52 which `is in turn vconnected to the car atl 53. The. air to the cylinder 51 may be controlled by -any suitable valves, not shown, to shiftthe car back and forth on its track. The car'carries a pro-` jecting horn 54 on which is mounted a pair Y of rollsl 5H, the -horn and rolls beingdesigned to clear the arm 41 of the blocking mechanism when in the full line position "of Fig. 5. The rolls 54`a support the reel or spool 36 by having the edges of the flanges '37 run on the rolls, and permit the spool to be rotated to bring the key members 35 in alignment with any one of the keyways 34.

in the winding drum. The car-38 isfurther provided Witha .push platel 55 adapted to` engage the endof the spoolor reelto push` it on to the block or drum 16, and the car also carries a pulling hook adapted to en-` `gage over the flange ofthe spool for pullingr a loaded spool from the drum. This'hookl may be provided with a slot 57'to receive the hinge pin 58 to permit the hook to be lifted and drawn out of operating position when desired. 1

It is to be noted that withdrawal of the` l 2After which, themetal beingstill onspools.r4

car 48 from the positions of Figs. 5 and 6 downwardly as viewed in Fig. 1, or tothe left as viewed in Fig. 6, will draw the filled end of the storage track 24. In this position the filled spool may be merely rolled from the car 48 on to the vstorage track 24. This'car 48 can now be advanced toza position in front of the storage 25 'for the emptyspools and one of them can be rolled on to the car.n `The car can then be advanced to place th'is empty i spool on the drum 16,'and then after thelcar has been Withdrawn the vcoiler mechanism 40 comparatively heavy gauge -or `any gauge which it is desired to roll coiled on the'spools,

preferably to approximately the same outside same manner. `which the rolled metal-has been wound can be withdrawn from this drum'by the transfer' : mechanism 23 and 24 as `above described.

diameteras thev spool anges', will bedelivl' ered to this rollingmill byfoverhead crane .or other conveying apparatus from .theV pre batches :containing somewherey `between '20 28 and While the lspooluis supported onthe car 30 the flanges run 4on the rollslpermitting the metal to readily unwind from the'spooliasl Vltpasses intothe rolling mill. The'transfer lmechanismv suchas the car 30 can now be -used to 'transfer this empty spool 'from the osition in front of the rolls to aposition in ront- -o'therear end of theempty :spoolfstorage `track 25, and the spools merel .irolled from this car on to this storage trac tofawait its turn in receiving anothermcoil `of. metal.

Transfer car 30` can thenbe returned-to thel `full line position of Fig. 1in 'alignment with .the front'of thefrolls 13 and the storage track 28 where anotherilled spool can be Vrolled on. toit and the metal therefrom rolled inthe The spool on the drum 16 kon placed in.y the storage. track After amener@ batch oft-oils fait metal `has been passed through the rolls and wound "oni spools as described, the rolls 13 can beset or adjusted for the-next operation during a., which the strips ofmetal will be successively unwound from one loaded spoolon to another spoolv until the entire batch has been rolled a` second time and this. operation ofrolling from spool to spool inbatches will be repeatved as often as may be necessary to reduce'the y thickness of the metal to any desiredA point.

los.

will again be transferred by a crane `or other conveyor 4mechanism to* anydesired place inv the mill where it may be unwound from the spools and passed'through the'next operation,

which may be any desired, such for example as, annealing,:slittin'g, or flattening'` and cutting to lengths etc, theempty spools in any n case-being returned to therolling mills for further loading,

It is tobe noted'` that inthe aboveo rationy the-spools of `each batchare-l'oade' on the storage .track 24 and then fork the next rolling operation' after resetting the rolls of `the rolling mill, they .are transferred yfrom this' Istorage track to the storage track 28 by means vof-transfer mechanism at the rear end of the storage `tracky 24, such asthe transfer car 27.

From storage track 28the loaded spools are rolled in succession on tothe ,transferanldv supporting mechanism `BO-byfwhich they A are l i held when the metal is being unwound from the spools. The empty spool is carried by thislcar to a position in front of the storage track for empty spools. Metal unwound ".from the spools lin front of Ythe rolls .from car V,is wound on the spool on the drum 16.

in frontof storage track 25 to receive there-` from an empty spool which is carried by this car and placed on the drum 16. Thus the cycle is repeated as many times as required A as.

' easilyirolled from one to the ot for the entire batch of spools or coils.`

VAs intimated above various type of transfer mechanism vmay be -used for transferrlng.

the loaded spools froi'n'the storagetrack 24 to the storage track Q8, and for transferring the empty -spools from the position in front of the rolling mill to the storage trackQ.- However, the cars 27 and 3() have proven satisfac tory. Car 27 -as shown comprises merely a suitable structural steel construction involving a-platform 59 of about the level of the tracks 24 and 28 so that the s y ools maybe 1er. A block 60 prevents the spool from rolling off the car, and a removable .block 61 is provided tore- `tain it on the car'during the transfer operation. The rolls 31 on the transfer and spool holding car- 30vare preferably mountedon anti-frictional bearings 62 to facilitate as far as possible the unwinding of the metal from the spool. Although the tracks 26, 27 and 28 as shown inl the drawings are arranged for having the coils or spools rolled by hand it will of course be evident that power driven conveyors or any other suitable transferring .andsupporting mechanism may be used.

It will be evident from the foregoing de scription that this construction and arrange- Ament provides a simple method o f handling metal in heavy coils to and from a. rolling `mill with a minimum of labor, and also that both the edges and the surface of the metal are protected from damage and waste' that would naturally occur if the metal in comparatively thingauges were transported and handled in open coils without the protection offered by the spools or reels. l

, Having thus set forth the nature of my invention, what I claim is: e

' 1. In a device of the character described, a rolling mill, means at the outlet side of the mill for carrying and rotating av spool on which to wind the metal after being rolled,

separate storage means for loaded and empty A spools respectively at one sideof the mill,

means for transferring a loaded spool from the winding device to the first storage means, and means for` shifting said transfer means to a position `to receive an empty spool from the second storage means and transfer it'to ithe c Winding mechanism. U5 f 2. In a-'deviceof the character described,

a. 'rolling mill. a winding mechanism at the outlet side of said mill im-ludng'm'eans for support ing` andV rotating a spool on which the e metal iste-be wound, avstorage means for loaded spools extending at one side of the 'milh a storage means for empty spools be ysecond storage means and deliver it to the winding mechanism. 3. In .a device of the character described, a rolling mill, a winding mechanism at the outlet lside of the mill including a rotatable drum having one or more longitudinal grooves in its surface, a transfer,mechanism including meansl for rotatably carrying a spool adapted to be placed on said drum, said spool having means to enter one of said grooves to""` drive the spool, means for driving the drum i to wind metal on the spool, and said transfer mechanism including means to withdraw a loaded spool by shifting it longitudinallyI from thedrum and to then carry it to a given location. i

4. In a device of the character described, a rolling mill, a winding mechanism atthe outlet side of the mill including a' support for rotating a spool on whichthe metal is to be wound as it leaves the mill, a storage means `for empty spools, a separate storage means Vfor loaded spools, movable transfer vmecha R00 msm for carrying an empty spool from the `first storage means and placing itv on the support, said .transfer mechanism including meansfor withdrawing a loaded spool from the support and earryingit to the second storage means, and means for operating the transfer mechanism.` f j 5. In a device of thecharacter described, a.

e rolling mill, a winding' mechanism at the out'- let side of the mill including a support for rotating a spool on which the metal is'to be wound as it leaves the mill, separable guide means to embrace the spool to guide the free end of the metal strip around the spool, said 4guide means being movable away from the 115 spool, a storage means for empty spools, a separate storage means for loaded spools, and transfer mechanism for withdrawing a loadedspool from the winding mechanism and carrying it to the second storage means and receiving an empty spool from the first storage means and placing it inthe winding mechanism, said transfer mechanismbeing mounted to clear theguide means when they Aare .awayfrom thespool.

the mill, a second storave meansv for empty spools. transfer-means loadedspjo'ol from thewinding'mechanismtol the first" storage n'ieans an'd 'transferring an empty spool from' .the fsecondf'storage means 'y e toV the .Winding"ineclian'isiii, 'nne'a'nns' f orfsupf` "poifins aleldedi'nflf '$011 'fthe llt Sfide ef: "the' rollingiiiillto permit' lthe",metal-to bej vumvound:therefrom as it pss'esthrugh the," mill,ineansifor'Y transferring a loadedA spool"A 2 v; l

"7"'l1.In a .1n-etal rollinor device, a rolling from the first storage means to said supporting means, and means for transferring an empty spool from said supporting meansrto the second storage means.

7. In a metal rolling device, a rolling mill, a winding mechanism at the outlet side of the mill adapted to rotate a spool to wind the metal thereon as it leaves the mill, a storage means for loaded spools at one side of the mill, a second storage means for empty spools, mechanism for transferring a loaded spool from the winding mechanism to the first storage means and for transferring an empty spool from the second stora e means to the Winding mechanism, means or transferring a loaded spool from the first storage means to a position in front of the rolls, and means :for transferring an empty spool from said latter position to the second storage means.

8. In a metal rolling device, a rolling mill, a storage means for loaded spools in line with the mill at the front side thereof, a storage means for loaded spools at one side of the mill, a storage means for empty spools at one side of the mill, means for transferring load# led spools from the second storage means to the first storage means, and means for receiving a loaded spool from the first storage means and sup orting it in front of the mill while the metal) is being unwound therefrom to pass through the mill and for transferring l4-the empty spool to the third storage means.

9. In a metal rolling device, a rolling mill, a storage means for loaded spools in line with the mill at the front side thereof, a storage means for loaded spools at one side of the mill, a storage means for empty spools at one side of the mill, means for transferring loaded Y spools from the second storage means to the first storage means, means for receiving a loaded spool from said first storage means and supporting it in front of the mill while the metal is being unwound therefrom to pass through the mill and for transferring the empty spool to the third Stora e means, means at the rear side of the mill or winding the metal or a spool as it leaves the mill, and means for transferring a loaded spool from the winding means to the second storage means and an empty spool from the third storage means to the winding means.

10. In a metal rolling device, a rolling mill, means at the rear of the mill for winding strip metal from the millon fianged spools, a storage track for loaded spools at' or "transferring a f tlieniill'," and transfer means for withdrawnglfa' loade'dispool" from thewinding means fand v` delivering it; to.y they first 'storage track, Asaid `transfermeans being also capable of re- ".ceiving an empty'spool from lthe second storf'age track andl delivering it4 to the winding mill, means at the rear of the mill for winding stri p -metal from the mill on flanged ,onenside ofthe millon which'the spools ma V "roll`l` n their flan es, va" similarv storage traclstI spools, a storage track for loaded spools at one side of the mill on which the spools ma roll on ltheir flanges, a similar storage trac for empty spools between the first track and the mill, transfer means for taking a loading spool from the winding means and delivering it to the first storage track and for receiving an emptyspool from the second storage track and delivering it to the winding means, a third Storage track at the forward side of the mill in alignment therewith, a cross transfer means for taking a loaded spool from the first track and delivering it to the third track, means for receiving a loaded spool from the third track and supporting it while the metal is unwound therefrom to pass through the mill, and a second cross transfer means for carryingithe empty spool to the second storage trac 12. In a device for rolling metal, a rolling mill, 'a `rotatabledrum at the rear' of the mill for lcarrying a flanged spool to wind the metal thereon as it leaves the mill, a transfer mechanism including a track and a car running thereon, rolls on said car mounted for supporting a spool with its flanges resting on leo tudinal movementthereon, and means or l shifting the car to Withdraw a loaded spool from the 'drum and to apply an empty spool thereto. v

13. In a device for rolling'metal, a rolling mill, a rotatable drum at the rear of the mill for carrying a flanged spool to Wind the metal thereon as it leaves the mill, a transfer mechanism including a track and a car running thereon, rolls on said car for supporting a spool withA its flanges resting on the rolls to turn thereon, an upright Wall carried by the car at one end of said rolls adapted to engage an end of a spool to force it onto the drum as the car moves toward the drum, a movable hook means mountedon the car to engage a flange of the spool to Withdraw it from the drum, 'and means for shifting the car to Withdraw a loaded spool from the drum and apply an empty spool thereto.

14. The lmethod of rolling metal which comprises delivering to a storage means adjacent the rolling mill a batch of loaded no v l is Wonnd,`supporting the spools in snccession in front of the mill to permit the metal to be y unwo'und therefrom as'it'passes through the mill, transferring empty flanged spools 1n y l succession from a storage space to a winding I means 'at the iearof the lnlll'winding the emptyv metal as it leaves the mill on `tofthe Y spools, transferring the latter spools from the winding means to astorage space, trans 10 ferring thev filled spools from their storage space to the supporting means in front of the mill, transferring the empty spoolsffrom the latter means to the storage space for emptyspools, resetting the rolls of the mill after the entire bat-ch has been rolled, and then again passing the met-al through the reset mill by the same. manipulation of the loaded and empty spools.

JAMES R. COE.

Images