US1425110A - Automatic lubricating device for rolling mills - Google Patents

Description

H. N. LITTLE ANI) I/V. B. GORIVIELY. AUTOMATIC LUBRICATING DEVICE FOR ROLLING IvIILLs. APPLICATION FILED MAY 7. T921.

z-tovifa'an n. Lieren .ann B. @oai/ism?, Looicroar, NEW '55eme AUTOMATQ LUBRICATNG DEVECE FOR aOiLNG- J'EILLS.

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Specification of Letters Patent.

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.E J- I aiented ring. T922.

Application filed 'May '7, 1921. Serial No. 467,731.

To (di whom 'it may concern Be it known that we. HOWARD iN. Lir'riai and XVALTER B. Goimnm', citizens of the United States residingr 'at `Lockport, in the county of Niagara and State of New York. have invented certain neiv and useful lmprovements in Automatic Lubricating Devices for Rolling ltiiills, of which thev following is a specication.

Uur invention relates to improvements in automatic lubricating' devices for rolling mills. more especially to means for lubricating opposite sides of sheet metal adapted to be passed through rolling mills for reducincr the thickness of the sheet metal.

As now generally practiced. sheet metal, especially sheet copper in rolled form, is passed to and between the rolls of a rolling mill, and before entering` the mill, the parts thereof are lubricated or oiled manually by means of an oil brush or swab passed back and forth by an operator standing at the side of the roll of metal. This results in portions of the metal receiving' more ooil than other portions, and in some instances, the portions thereof passed between the rolls of the mill without being` oiled become scaled or other imperfections of the sheet metal are caused. This method of oiling also results in a considerable waste of oil and is therefore expensive and at times ineffective. especially when thus oiled by an in experienced or a careless operator.

. rl'hc primary object of our invention is to provide an automatic lubricating or oiling device in which oil is evenly fed, delivered,

- or transmitted onto both sides of the sheet metal, no more oil being used. when the device is properly adjusted. than is absolutely necessary, with the result that a considerable savinlgT of oil will result from the use of this invention over a period of time.

a further object of our invention is to provide an oiling device in conjunction .with a roll of sheet metal, so arranged that when the device is in action, it will be situ-o ated directly over the sheet l.metal at the point where it leaves the-roll ina single strand or thickness; and iii placing' between the single strand or thickness and the rolled portion of.the. metal, a distributer which rolls in contact with opposite sides of the sheet metal and which is so constructed that mill.

oil delivered thereonto will thoroughly cover the .exterior thereof. so that all portions of opposite sides of the sheet metal will be thoroughly and evenly lubricated.

A. still further object of our invention `is` to provide an oiling device which is movable so that it can be placed in position to oil the distributer hereinbefore referred to, or so that it may be moved to one side in order that a new roll may be placed within the'box-like structure in which the rolled material is placed and from which it. is drawn in a single strand or thickness to be fed toand between the rolls of the rolling- With the above and other objects in view, our invention` consists in the-novel features ot construction and in the arrangement and 'combination ofpaits to be hereinafter described and more particularly pointed out in the subjoined claims.

ln the drawings Fig. l is a sectional elevation. showing` our improved device associated with a pair of guide rolls and the rolling' rolls of a rolling machine. i

Fig. 2 is an end elevation of the device.

Fig. 8 is an enlarged longitudinal section taken on line 3 3, Figa?. I

Fig. 4 is a. vertical transverse section taken on line 4 4, Fig. 3. l

Fig. 5 is an'A enlarged horizontal section through a portion of the roll-receiving box taken on line 5 5, Fig'. 2.

It is to be understood that our improved device inay be used in connection with any form of rolling mill, and for this reason we have not deemed it necessary to illustrate more than the two rolling' rolls of a mill. between which rolls the metaltis to be passed, and two Zguide rolls to guide the sheet metal, which guide rolls may, however, in many cases be omitted, or other parts serving the same purpose substituted therefor..

.. Thin sheet metal material, and especially sheet copper or sheet brass is invariably kept in roll form, and when passing` the same 10o vthrough a rolling' machine for reducingl the thickness thereof. the roll ofV sheet metal is placed within a roll-receiving box or box-like retainer of the type shown in the drawings and designated by the numeral 6,said boxlike retainer being supported on a suitable frame-work T, and in reality serving as a support for the rolled sheet metal. The sheet metal in roll form is gradually unrolled, and the portion unrolled is passed upwardly out of the box-like retainer and passed between suitable guiding elements, such as shown by the guide rollers 8 in Fig. 1, from which it is continued rearwardly and directed through the pass provided be tween the'two rolling rolls 9 forming part of any type of rolling machine.

As hereinbefore stated, the guiding de- `vice formed by the rolls 8 may at times be omitted, orother guiding means substituted therefor- Therolling metal is so placed within thebO'x-like"` retainer that it will uncoil from the side closest to the rear of said container or the side closest to the rollingV machine, as at 10, Fig. 3, thus providing a crotch or V-shaped space 11 between the rolled portion and that part of the unrolled portion adjacent said rolled portion, the unrolled portion of the sheet metal being v shown at. 12.

As kfar as known, the unrolling of the sheet-metal from the rear of the roll is a Inew departure and has not heretofore been used, as" it has been the practice to unroll the metal from the front or forward portion of the roll, but in the use of our improvedA oiling device, the crotch or substantially V-shaped space 11-is utilized to good advantage, as will be explained hereinafter.

The bottoni 13 of the box-like retainer G is slanted rearwardly, as shown, sothatduring the unrolling of the metal the tendency of the roll is to move rearwardly along the inclined bottom, thus assuring the. forma-l tion of the crotch or V-shaped space between the unrolled portion of the rolled portion of the metal at all times.

l15 designates a support or upright fastened to one of the sides of the box-like retainerv 6, as at 16, and secured thereto at a suitabledistance above the box-like retainer is a collar 17. 18 designa-tes a combined oilcontainer aridy feeder, it being preferably formed rectangular and the container portion, designated by the numeral 19, has a bottom 20, side-walls 21, and. end walls 22,

v' said end walls being continued downwardly a distance below the bottom 20, as at 23. The portions 23 maybe referred to as downward extensionsof said end walls and they are ltapered toward their lower ends.

'Between the downwardl extensions 23 of `said end walls an oil-trough 24 1s arranged,

i said trough being V-shaped in cross section and divided into a number of chambers 25 by transverse walls or partitions 26.. The lower end of the trough is provided'with numerous small oil feeding openings 27 a series being provided for each chamber 25.

y The combined oil retainer and feeder has brackets 2S secured to one end wall thereof,

said brackets having openings therethrough and being passed over the support or up right 15, the lower bracket 28 bearing against the collar 17 secured on said bracket so as to pivotallyhold said combined oil container and feeder in elevated position, with' Athe lower end of the oil-trough 24C a short distance above the level of the upper edges of the box-like container l6.

In lthe bottomwall 20 of the oil-container portion 19, pet cocks 29er similar elements are secured -in order to feed oil from said container portion into the trough 24 ofthe device, one pet cock being arranged over each chamber 25 of said trough.

In' the drawings we have shown ythe oil container portion 19 equipped with five pet cocks and the trough 241directly beneath with five oilchambers 25 ,and in Fig. 4 of the drawings, the two end pet cocks are shown closed, while the three intermediate pet cocks are opened and feeding oil into the three intermediate chambers 25 of the trough; the feeding being arranged as described, due to the fact that the sheet metal to be oiled is approximately of, a width equaling the length of the three intermediate chambers 25 of said trough.

In the crotch or V-shaped space 11 formed between the rolled portion of the metal and the unrolled portion, we arranged a distributer in the form of a roll- 30 which -is suitably constructed of a length of pipe'l and a felt or other absorbent covering 32;

The box-like container 6 is provided with movable supplemental side walls 33, opposite endsl ofwhich are fitted in grooves provided at the inner side of the rear and front walls of said box-like container by crimping a sheet of metal upon itself, as indicated at 34, the metal being 'so crimped that the grooves are formed therein, the grooves at the front o f the box-like container being alined with those at the rear so that when a supplemental side wall is to be used, opposite ends thereof will be inserted in corresponding grooves and thus retain said supplemental side wall parallel with 'the permanent sidewalls of said box-like container.' v

In Figs. 4 and 5 of the drawings we have shown two supplemental side walls 33 spaced-equal distances from the permanent sidewalls so as to provide a space between the'two supplemental sidewalls equaling, or approximately equaling the width of the sheet metalto be rolled. Inthis manner ,the sheet metal is drawnout by the rolls 9 diate chambers of theoil-trough 24 feed ing oil, it is apparent that with the width of metal shown in the drawings, the roll could be situated at one side of the Abox-like.

side walls a distance equaling the'width of sired, the entire trough 24 may be omitted and the oil fed onto the distributer dii rectly from the pet cocks.

When I the sheet metal is fully unrolled and it is desired to placea new roll of metal into the box-like container 6, the distributer 30 is removed from said container and the combined oil-retainer and feeder swung laterally, as indicated by dotted lines, dl `ig.

the metal. The sheet metal would then passw?, `or..to any position where it will not feed out of the box-like container 6 underneatlr \oil into the box-like container` it being of the first three or the last three chambers 2 of the oil trough 24, and consequently cor-- responding pet cocks would be open to feed4 oil into said three chambers, while the pet cocks above the tworemaining chambers 25 would be closed. v I

In the drawings we have shown the petcocks feeding oil from the containeriportion 19 into the three intermediate chambers 25 of the bil-trough 24 at a capacity to retain oil within said chambersV at all times.v The oil within said chambers drips through the drip openings 27 onto the distributer 30, the absorbent covering of which becomes thoroughly saturated by capillary attraction, and this covering distributes the oil onto one side of the sheet metal at the rolled portion thereof and to the other side thereof at the unrolled portion or single strand, the unrolling of the metal causing rotation of said distributer so 'that the oil is fed onto different portions of said distributer at,all times, with the result that the absorbent covering thereof becomes thoroughly satura-ted and-the surface moistenedv with oil to .the same degree at-all points thereof, thus assuring anV even distribution of the oil onto the opposite sides of the sheet metal at all portions thereof. i

In the event that the oil fed to the distributer is found-to be excessive, the pet cocks over the feeding chambers 25 may be closed until all the oil within said chambers has dripped therefromv` a'fter which the pet cocks may be opened to anextent to regulate the feed of oil into said chambersv 25 to a degree that will prevent accumulation of oil therein yet permit the `oilid'elivered thereinto to gradually drip through thel opening 2T at the lower ends thereof, thus allowing surplus oil on the distributer or within the absorbent covering thereoftobe consumed. lt is of cource to be understood that when the sheet nietalto be rolled is of greater width than herein shown, it may be found necessary that four or even five chambers 25 of the oil-trough 24 must be utilized. llVhile we have shown live pet cocks and ve chambers 25, it is apparent that the oiltrough 24 may be divided into a greater or a smaller number of chambers, and where the sheet metal rolled in av plant is always of the same width, the divisional Walls or partitions 26 may be dispensedwith or, if deto the distributer lying in contact with opposite sides of the/sheetmetal, we do not wish to be confined to the use of such a device, as any suitable oil feeding device ca- 5" course necessary to place a suitable recep- ,4

pable of supplying oil to the distributer in desired quantities could be efficiently einployed without departing from the principle of this invention; y

Having thus described our invention, what we claim is l. The combination with a rollingmachine having a pair of rolling-rolls, of a supp OrtfOr a roll of sheet metal having a portion thereof unrolled and passing between vsaid rolling-rolls, a 'distributer in contact with the rolled and the unrolled portions of said metal, and means for feeding oil to said distributer. i

2. r`hey combination with a pair of rollingrolls, of a support for a r'oll of sheet-metal having a portion thereof unrolled and leading to and passing between said rolling- `rolls,`said unrolled portion extending from the rolled portion of said roll of sheet metal to provide a space between the two, a cylindrical distributer situated in said space and adapted to roll against opposite sides of the metal when being unrolled, and means foi` feeding oil onto said distributei".

3. The combination with a pai-r of rolling rolls, of a box7like container, a roll of sheet* metal within said container having a portion unrolledv and extending vto and passing between said rolling-rolls,v a supplemental wall Within saidl box-'like container, and means `for retaining said sup'pleriiental wall in one.

of a plurality -of positions within said container.

- 4. The combination with a pair of rollingrolls, o'f a box-likey container having alined grooves lat opposite walls, a supplemental wall adapted to fit in any two alined grooves, and a roll of sheet-metal placed Within said container'and' confined between said supplemental wall and a wall of said container parallel therewith, said sheet- 'Y grooves ateach of two Aopposite walls, the

grooves ofsaid walls being alined, a pair of supplemental sidewallsfadapted to have opposite'- zvends... thereof fitted in alined grooves', a rol-lli fj sheet-metal between said supplemental.side, walls having a portion thereof unrolled and extending to and passing between said rolling-rolls, and an oil distributer 'in contactA with` said sheet-metal within said container. l

6. The combination of an oil distributer acting against sheet-metal to be oiled, a V shaped elonOated trough above said oil distributer divided into chambers, each chamber having drip openings at its lower en d, L-

and means for feeding oil into any numberV of said chambers. Y

7 An oiling device for the purpose described, comprising an oil container and aplurality of pet cocks securedto the under side of said container, in combination with an oildistributer onto which oil is delivered/* from said pet cocks and wherebyl the oil is distributed onto sheet-metal.

comprising an oil container having a plurality ofv controllable feeding elements/and a trough. arranged underneath saidl lcontainer land divided intoA chambers 'correspondingin number to' thenumber of said feeding elements, onechamber being underneath each feeding element and each chamber having a plurality of drip openings' therein. A

9. The combination with a box-like container having an' upright extending from one wall thereof, a combined oil-container and feeder rotatably mounted von said yupright, a roll of sheet-metal within said/bb, like container having a .portion thereof/nrolled and .passing upwardly from said container, anda cylindrical distributer lying in contact with'zboth the unrolled portion and the rolled portion of said sheet-metal and adapted to receive the oil from saidfeeder. l

10. The combination with a box-like con-t tainerhaving a roll of sheet-metal therein with a portion of the metal unrolled and extending upwardly therefrom, anupright on said box-like container, a combined oil-container and feeder pivotally supported on said upright and comprising an oil-container portion, a plurality. of pet cocks secured in the bottom of said oil-container portion and an oil-trough beneath said pet cocks dividedinto chambers and having one chamber underneath each pet' cock7 each chamber having'a plurality of feed openings at its lower end, and an 'oil-distributer comprising a metallic body and an absorbent covering for the same arranged underneath said oil-trough.

ll.y The combination with a box-like container having a roll of sheet metal therein with a-portion thereof'unrolled and extenduterand controllable. to feed oil onto all or varied portions in the length of said distributer.

Y12;fl`he combination witli a rolling machin/eJ having a paiifofrolling rolls, of a support for a roll of sheet metal having a -portion thereof unrolled and passing be- 8. An oiling device of the kind described, y

roll simultaneously lubricating both sides of said sheet ofl metal.

13. The combination with a -pair of rolling "rolls, ofla support for a roll of sheet metal having a portion thereof unrolled and passing between said rolling rolls, an Ioil distributing device in contact with said sheet metal to oil thesame, and an oil supplying device including means for supply- .ing oil along selected lengths transversely.

14. The combination with a pair of rolling rolls, of avsupport for a roll of sheet metal having a portion thereof unrolled and passing between said rolling rolls, and means for supplying oil allong different transverse lengths to, distribute-oil ,according to the width of the sheet .metal In testimony whereof we aix our signatures.'.,"f

' HO'WARD N. LITTLE.

WALTER B. .GORMELY.

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