US1554551A - Strip mill - Google Patents

Description

. will be apparent that the proper disposition Patented Sept. 22, 1925.

UNITED sIAIEsPAIaNT OFFICE.

ELoRENoE c. RIoeERr, mg or GRAFTON, A D KIR'I'LAND c. GARDNER, 0 CORAOPOLIS HEIGHTS, r NsYLvANI'a, ASSIGNORS T0 UNITED ENGINEERING AND FOUNDRY COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

STRIP M LL.

Application filed February 12, 1923. Serial No. 618,636.

.larged scale, of the coiling mechanism ill-ustrated in Figure'l;

To all whom it may concern:

Be it known that we, FLORENCE O. Breenu'r, J r., and KIRTLAND C. GARDNER, both citizens of the United States, residing, respectively, at Grafton and at Coraopohs Heights, both in the. county of Allegheny and State of Pennsylvania, ave invented a new and useful Improvement in Strip MlllS, of which the followingis' a full, clear, and exact description.

Thepresent invention relates broadly to rolling mills, and more particularly to strip mills, the term strip being used n its generic sense as covering shapes having a substantially rectangular section, or a section of such nature that the material is adapted to be wound into a helix or series of superimposed coils.

At the present time it is customary for strip mills to deliver strips from the last stand of rolls at a speed of from 600 to 1000 feet per minute. As the strips leave such rolls at a comparatively high temperature, it

of the mechanism shown in Figure 2,

scale, of one of the guides for the coillng devices; and

Figure 5 is a side elevation of a suitable carrier for the coiled strips.

In carrying out the present invention, there may be provided adjacent the last stand of rolls 2 of a strip mill .of any desired type, a plurality of coiling devices 3, any one of which may be operated independently of the others.

may be of any desired to receive the strip as delivered from the last stand of rolls and form'the same into a series of-superimposed coils: devices may be constructed as disclosed in the co-pending application of Florence C. Biggert, jr., Serial No. 555,890, filed "April 21, 1922, or the co-pending application of Lane Johnson, cember 2, 1922.

'As illustrated more ures 3 and 4, the strips from the last stand table 4, which feed thereof is a matter of some concern. In some cases it is desirable to store the strips; in other cases it is desirable to pickle the strips; and in still other cases it may be desirable to straighten the rolled strips and shear the same into lengths. In any case, it frequently happens that the rolling mill delivers strips so rapidly that they are only handled with considerable trouble.

By the present invention there is rovidedf a mill, and a method of operating t e same, whereby the output of the mill may be easily cared for and whereby the handling of the strips is greatly facilitated. In the accompany drawings, 'there is shown, for purposes of illustratlon only, and in more or less-diagrammatic manner, a mill lay-out embodyin this invention, it being understood that t e drawings do not define the limits of the invention and that changes may be made in the construction and opera- I tion disclosed therein ,without' de arting In p g ln'accordance h from the. pirit or. cope of our roaderi -tllls invention, the ceiling devices Will he claims. I successively brought into'use for handling In the drawings,- v V 'successive strips from the rolling mill. In Figure 1 is a top plan view illustrating this manner it w1ll be unnecessary to interone form of. mill lay-out embodying this in fere with the contlnuous rollmg of strips. vention; Aseach coil is completed, it may be moved Figure 2 is a top plan view, on an enaxially from its respectlve coiling device are adapted to ass of rolls 2 onto a eed spaced, and a series of intermediate plates 6. Certain of the rollers 5 may be driven bymotors 5', if desired. The coiling devices 3 the feed table 4, and the strips may be successively directed into different coiling devices by the use of movable gates or deflectors? adapted to be dropped downwardly fleeting the will be apparent that with the deflectors in the position illustrated in Figure 3, the coilhand end of the feed table strip.

particularly in Figtable may comprise. a series of antifrictmn rollers- 5,- suitablymay be disposed in superimposed relation to into engagement with the plates 6 for destrips from the feed table. It

ing device illustrated at the extreme rightwill receivethe Figure 3 is a side elevation of a portion Figure 4 is a detail view, on an enlarged Such coiling Serial-No. 604,488, filed Deonto a si'i-itablereceiving and storage means. This means may conveniently be in the form of a series of 1 rotatable standards 8, each having projecting radially therefrom a plurality of arms 9, which arms in one position will extend in substantially axial alinement with the coils in the coiling devices whereby such coils may be easily transferred as desired. Each arm 9 maybe advantageously 10 constructed to hold a plurality of coils, and

as the arms become filled, the standards 8 will be rotated to advance the filled arms and bring empty arms into operation,

As the arms reach a position at approxi- 16 hiately 180 from that in which they are charged, they are adapted to have the coils removed therefrom. A convenient mechanism for removing-the coils comprises acrane hook 10 having a horizontally extending arm 11 of carried by any one of the arms'9. These coils may then be bodily transferred from the. receiving and storage'means to a warehouse wherein they may be stored for shipment as raw material; or: rthey may be carried to re-coilin devices in which they will be loosely re-coi ed to effect removal of thescale and permit access thereto of the pickling solution. In Figure 1', two re co1lingdevices 12 adapted to be used for this purpose are shown. Coo crating with each of the re-coiling devices is a standard 13similar to the standards 8 before described and adapted 'tqgreceivdthe coils from-the recoiling devices. The coils from the crane hook 10 may initially be placed on suitable mandrels or supports '12' from which the strips pass to the re-coiling devices. 1 Durmg re-coilin'g,'it will be apparent that the strips are coiled in the opposite direction, whereb vthe scale on the surface is eifectively. roken up. Atthe same time, the

coils are formed in sli 'htly spaced relation- "ship whereby the su aces are more or less exposed to permit the action thereon of the acid solution .in the pickling tank.

In other cases, t e coiled strips may be taken directly from the receiving and storage means atthe delivery end of the" mill 9 and placed upon a suitable support 14 from a length'sufiicient to support all of the coils uent treatment,- or

arms 9, there may .be rovided a suitable cover ards 8. The specific construct-ion of the storage plate 18 dispose above the stand means illustrated herein is made the subject matter of a copending application in the name of Kirtland C. Gardner, Serial No. 620,541, filed F ebruary'21, 1923.

The advantages of the present invention arise from the provision of a strip mill having novelrmeans for handling the output of the mill, whereby the delivered strips may be handled more easily and expeditiously than heretofore with mills of this character. I

We claim: ,7 p v 1-. In a strip mill, the combination with the last stand of rolls, of a plurality of coilin'g devices, a storage means cooper ting with each of said coiling devices and a apted 3Q. receive coiled material therefrom, and.

means for causing the strip delivered by the last stand of rolls to pass to any one of said coiling devices, substantially 'as described. 2. In astrip mill, the, combination with the last stand of rolls, of a plurality of coil ing devices, a rotatable stora e means cooperating with each ofsaid coiling devices, and means for causing the strip delivered by the last stand of rolls to pass to' any one'of said coiling devices, substantially as described.

3. In a strip mill, the combination with the last stand of rolls, of a plurality of coilingdevices, storage means cooperating each of said coiling devices anda to hold a pluralit of coils, and .means'for causing the strip elivered by the last stand with apted of rolls to passto any one of said'coiling devices, substantiall asdescribed.

4. In a strip mi he combination with the last standof rolls, of a plurality of coiling'devices, a stora means cooperating with each of'said coiling devices, means for causing the strip delivered by the last stand 7 .of rolls to pass to any one of said coiling devices, transfer means and re-coiling means adapted to receive the coils from said transfer means, substantially as described.

.thelas't stand of rolls, of a'plurality of coilingdevices, a storage means cooperating with each of'said coiling devices, means for causing the strip delivered by the last stand of rolls'to pass to' any one of said coili'n devices, transfer meansandmeans adap to receive the coils from said transfer means and rform an operation thereon, sub- 1 stantifllyas described."

5. In a strip mill, the combination with" In testimony whereof wehave hereunto set our l'iands. I

FLORENCE o; BIGGERT, JR. A

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