US1689544A - Method of kgllistg - Google Patents

Description

Oct. 30, 1928.

S. G. WORTON METHOD OF ROLLING Filed Dec. 19, 1921 2 Sheets-Sheet mania)",- ".52/7052 WOfTfi/V, aw 04W 541% Oct. 30,-192s. 1,689,544

- v s. G. WORTON METHOD OF ROLLING Filed Dec. 19,1921 2 Sheets-Sheet 2 A 5 Mi L W6 A LIL I lwym K- Patented Clot. 30, 192$.

stares lease SAMUEL Gr. lVORTOhT, OF DUQ'UESN'E, PENNSYLVANIA.

METHOD OF ROLLING.

Application filed December 19, 1921.

My invention relates to the manufacture of rolled metal shapes, known generally as merchant shapes, and more particularly relates to the finishing; operations whereby the size and the profile or contour of the shapes are fixed, and the surfaces are finished.

One object of this invention is the pro vision of a novel method of making rolled metal shapes whereby roughness, irregularity, and other surface defects are removed from the rolled shapes and. the shapes are made accurate and with a finely finished surtaco, and "further objects of the invention will be made apparent hereinafter, in the detailed description of the invention, and in the appended claims.

My invention broadly consists in grinding the shapes to size and contour after completion of the hot rolling operation and while the shapes are heated to a temperature approximating that atwhich the hot rolling operation is completed.

(he invention may be employed in finishing the shapes by subjecting the heated shapes to the grinding step of my improved method as they emerge from the finishing pass 01? the rolling mill, or when the shapes have been allowed to cool the method n'iay be carried out by reheating the shapes to about the temperature at which they are ordinarily finished in the rolling mill, and then grinding; the re-hcated shapes.

In the accompanying drawings, forming part of this specification, Figures 1 and 1 are plans showing the finishing rolls of a merchant mill and one arran rmnent of grinding; apparatus adapted tor use in ca ry ing out my invention. A complete plan will be had by joining Figures 1 and 1 on the lines [6"(6 of these figures.

Figures 2 and 2 are side elevations of the apparatus shown in Figures 1 and 1 a complete side elevation being had by joining, these figures on the lines (r -a thereof.

Figure 3 is a sectional end elevation of the apparatus shown in the preceding figures, the seouon being taken on the line III-Jill 01 Figure 2.

Referring now to the drawings, the letter A designates a stand of finishing rolls having finishing rolls 2 and 3 constructed and arranged in the usual manner, and B designates the usual feed tables on opposite sides of the stand A, these teed tables having the Serial No. 523,383.

usual arrangement of apron plates a and table rollers 5.

The delivery end of the food table B abuts the receiving end 01 a hot run-out table C which carries the rolled shapes away from the roller table B and delivers them to the cooling bed l), upon which the shapes are allowed to cool and from which they are finally deli *ered to a cold run-out table E.

A grinding mechanism l? is provided at an intermediate pointin the length ol the table B, this grinding mechanism comprising a bearing stand (3 having a pair of vertical grinding wheels 7 mounted in adjustable bearing blocks 8, these bearing; blocks being mounted in the windows of the hearing; stand 6, so as to be vertically adjustable. Adjusting screws 9 having handwheels 10 on the upper end thereof are provided for moving and holding the bearing blocks 8 for the upper grinding wheel 7 in adjusted position, and adjusting screws 9 also are provided for moving and holding the lower grinding wheel 7 in adjusted position. (See Figure 2a) The grinding wheels 7 will be formed of emery, carborundum or other suitable abrasive. These wheels are secured on suitable shafts 11 which are rotatably mounted in the bearing blocks 8, and are provided with bevel gears 12 meshing with bevel gears 13 on the vertical drive shaft 1-1. The drive shaft 14- is provided on its lower end with a bevel gear 15 which meshes with the bevel gear 16 on the end of the armature shaft 17 of the driving motor 18.

Positioned on the table B in front of or on the delivery side of the grinding mechanism 1* is a pair of pinch rollers 19 and 20, these pinch rollers being rotatably mounted in a roller stand 21, and the upper pinch roller 20 being mounted in bearing blocks having adjusting screws 22 by which the roller 20 is held in operative position relative to the lower pinch roller 19.

In carrying out my improved method with the above described apparatus, the sue ccssively rolled bars or shapes X pass directly from the finishing stand of rolls A while still heated from the rolling operation into engagement with the grinding wheels 7 of the grinding mechanism F, and engagement of the grinding wheels cuts away or grinds oil? any surface defects on the rolled shapes the shapes being cut away to an equal depth througl'iout the length thereof so as to remove all surface detects and accurately finish the shapes to size and contour.

The pinch rollers being located on the feed table B in position to engage with the forward end of the shape being rolled be fore the rear end of the shape emerges from between the finishing rolls 2 and 3, enables the shapes to be pulled through the grinding mechanism F, even when the shapes are small and flexible.

The advantages of my invention will be appreciated by those skilled in the art. By the use of my improved method rolled shapes are finished with a degree of accuracy and with a surface finish which is not attainable with any of the old methods of which I am aware.

It is to be understood that the particular apparatus shown and described is only illustrative, and that many changes in the construction and arrangement of apparatus usable in carrying out my improved method may be made. \Vhile but one pair of vertical grinding wheels is shown in the drawings, it will be apparent that the grinding nesaaea mechanism F may have horizontal grinding wheels instead of vertical grindine wheels or both horizontal and vertical grinding wheels, and that a plurality ot sets of such wheels may be en'lployed so as to permit of successive grinding operations being performed on the shapes in the passage thereof along the table B.

It also will be readily understood that the shapes may be re-heated and then ground. although prel'erably they will be ground immediately alter the completion ot the rolling operation.

1. The method of finishing rolled metal shapes, which consists in grinding the shapes atter completion of the rolling operation and while heated to a temjiierature approximating that at which the rolling operation is completed.

2. The method of finishing rolled metal. shapes, which consists in grinding the shapes immediately after completing the rolling operation and while still heated From the rolling operation.

In testimony whereof I have hereunto set my hand.

SAMUEL G. WORTON.

Images