US2207302A - Rolling mill feed table - Google Patents

Description

y 9, 1940. w. NEWBY r AL 2,207,302

ROLLING MILL FEED TABLE Filed Aug. 2 1939 2 Sheets-Sheet 1 "I I J l I Aa oA Eff-a l'er- W/ ///fam Newb F July 9, 1940. w. NEWBY ET AL ROLLING MILL FEED TABLE Filed Aug. 2, 1959 2 Sheets-Sheet 2 Patented July 9, 1940 UNITE s'rA-TEs ROLLING MILL FEED TABLE William Newby, Youngstown, and Adolph F. Frazier, Niles, Ohio Application August 2, 1939, Serial No' 287,946

In Canada May 6, 1939 6 Claims.

This invention relates to a feed table for a cold rolling mill.

The principal object of this invention is the provision of an adjustable feed table for a cold rolling mill wherein the various portions of the device are power driven and adjustable as to the Width of the sheets being passed through the rolling mill and provided with means for aligning the sheets and efficiently feeding them into the rolling mill.

A further object of this invention is the provision of an adjustablefeed table for a cold rolling mill wherein the adjustable sections of the device are so positioned and actuated that a sheet placed thereon will be, regardless of its width, fed into the rolling mill always with its center line in direct alignment with the center line of the rolling mill itself.

The adjustable feed table shown and described herein has been designed tofeed steel sheets into a rolling mill more speedily and more accurately than has heretofore been possible utilizing the means known to the art. lin rolling steel sheets of thin gauge, it is highly important that each individual sheet be properly aligned and carefully fed into the rolling mill in order that the" corners and edges of the sheet do not become turned under or bent in any manner.

The adjustable feed table shown and described herein has, therefore, been provided with a plurality of revolving tapered flanged guide portions so thats steel sheet positioned on the feed table will be carried forward toward the mill and the same properly aligned or straightened beforeentering the mill by means of these guide portions.

In order that the feed table may be adjusted for handling various widths of sheets, the revolving guide portions and the conveyer sections of the table have been adjustably mounted so that the entire feed table may be conveniently adjusted at any time as to width, thus making it possible accurately than has heretofore been possible.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the-invention herein disclosed, can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings wherein:

Figure 1 is a side elevation of the adjustable feed table showing it positioned on an elevated floor area immediately in front of a cold rolling mill.

Figure 2 is a top plan view of the adjustable feed table showing the various parts of the device, some being in cross section as indicated by the section lines on Figure 1.

B-y referring to the drawings and Figure l in particular, it will be seen that the adjustable feed table comprises a rectangular frame 5 prefcrab-1y formed of metal of appropriate size and strength; the upper horizontal portions 2 of the frame I are providedwith a pliuality of'oppositely disposed journals 3 through which are passed a plurality of revolvable shafts l; Positioned on each of these revolvable shafts 3 there are a plurality of pulleys, preferably four in number, the center pair 5 being fixed as to location on the said revolvable shafts 4 and the outer pair being movably positioned on the revolvable shafts 4 and provided on their outermost sides with annular taperedflanges l. Positioned over the plurality of pulleys 5 and 6 there are suitable conveyer belts 8 upon which the sheet is placed and which servesto advance'the sheet forward toward the rolling mill. It will be seen that the annular tapered flanges l' on the outer most sides of the pulieys B will effectively and without harm straighten the sheet as it advances forward on the conveyer belts 8 as a sheet placed carelessly on the feed table will slide down between the tapered flanges l and align itself as it moves forward.

In order that the feed table may be adjusted so as to handle various widths of sheets, the flanged pulleys 6 have been movably positioned on the revolvable shafts 4 and are held in correct position by means of secondary horizontal frame members 9. These secondary horizontal frame members 9 are provided with fingers Ill adapted to engage annular'grooves ll formed on pulleys 6. In order that the horizontal frames 9 and the pulleys 6 may be moved sidewardly, a pair of adjusting screws [2 have been positioned be-- tween and extending through the horizontal top' these horizontal frames'9 and the pulleys 6 sidesaid assemblies will move in opposite directions thus effectively widening or narrowing the straightening and guiding area of the feed table so that various widths of sheets may be handled thereby. It will be seen that the horizontal frames 9, together with the pulleys 6 which are moved thereby, will when moved by reason of the adjusting screws [2 being rotated maintain their respective distances from a center line of the said feed table so that sheets positioned thereon will, regardless of their width, be fed to the rolling mill with their center lines in exact alignment with the center line of the feed table and the rolling mill. Positioned at one side of the frame I and geared to ends of the adjustable screws l2, there is an actuating shaft I4 which is provided so that adjustment as to width may be made by simply rotating this actuating shaft I4. Positioned at the forward end of the feed table and formed as a part thereof, there is a secondary feed table considerably smaller in area than the primary portion and in an inclined position so that sheets traveling across it move slightly downwardly and into the rolling mill. This portion of the feed table is not adjustable as to width but otherwise is similar in construction to the adjustable section, with the exception that there are no tapered flanges provided on any of the rotatable pulleys thereof. The sheets having been already straightened and moved forward on the table, they will pass across this small section satisfactorily without additional guide means of any kind. This secondary portion of the adjustable feed table comprises a rectangular frame I5 positioned at an angle to the frame I and carries a pair of rotatable shafts I6 each of which in turn carries a plurality of pulleys I! which are adapted to receive conveyer belts. At the extreme forward end, the rectangular frame I5 is provided with a plurality of slide bars l8 over which the sheet passes immediately prior to entering the rolling mill proper. In order that all these various rotatable parts may be suitably driven it will be seen that provisions for driving the various rotatable shafts are provided in the form of sprockets l9 upon the rotatable shafts and chains engaging the sprockets I9 and that a motor 2|, and reducer may be positioned in the frame l and suitably connected to one of the rotatable shafts 4 so that the entire assembly is operatable. It will be obvious that if desirable the feed table may be driven from the power source of the rolling mill itself. It will also be seen that means 22 has been provided for tightening the various conveyer belts utilized in this adjustable feed table and may comprise any suitable structure known to the art.

What we claim is:

1. In combination with a sheet feeding table for a rolling mill wherein conveyer belts are trained over pulleys for advancing a sheet toward the rolling mill, and guide means for straightening the said sheets as they advance toward the rolling mill, the said guide means comprising a plurality of oppositely disposed tapered pulleys associated with the said conveying means, the said flanges adapted to receive the sheet therebetween and suitably guide the said sheet and straighten the same in relation to the said conveyer and rolling mill as the same is advanced toward the rolling mill.

2. In combination with a sheet feeding table for a rolling mill wherein conveyer means advance a sheet toward the rolling mill, and guide means for straightening the said sheets on the said conveyer means comprising a plurality of wheel-like flanges formed with oppositely disposed tapers adapted to receive the sheet therebetween and straighten the same in relation to the said conveyer means and rolling mill as the said sheet settles onto the conveyer means between the said tapering flanges.

3. In combination with a sheet feeding table for a rolling mill wherein conveyer means advance a sheet toward the rolling mill, and guide means for straightening the said sheets on the said conveyer means comprising a plurality of revolvable flanged pulleys adjacent the sides of the said conveyer means, the flanges of which are formed with oppositely disposed tapers so as to receive a sheet therebetween and straighten the same in relation to the said conveyer means and rolling mill as the said sheet moves along the said conveyer means between the said tapered flanges, together with means for varying the position of the flanged pulleys in relation to the width of the sheet conveying space therebetween.

4. The combination with a rolling mill for rolling relatively thin sheets, of a conveyer table adjacent said mill for feeding thereto the sheets to be rolled, said conveyer provided along its sides with revolvable inwardly sloping guide portions so that a sheet positioned therebetween will be straightened through the sheets natural inclination to settle to the surface of the conveyer between the said revolvable inwardly sloping guide portions.

5. In combination with a sheet feeding table for a rolling mill wherein conveyer means comprising a plurality of shafts arranged transversely of the said table carry a plurality of belts trained thereover for advancing a sheet toward the rolling mill, said conveyer provided along its sides with revolvable oppositely sloping guide portions adapted to receive a sheet therebetween and straighten the same through the engagement of one or more of its edges with and between the said revolvable oppositely sloping guide portions as the sheet slides down the same and settles onto the conveyer means, together with mechanical means for adjusting the said revolvable oppositely sloping guide portions longitudinally relative to said shafts so as to vary the effective sheet straightening and conveying width of the said sheet feeding table.

6. Sheet feeding mechanism including an endless conveyer having revolvable inwardly sloping guide portions oppositely disposed along its sides adapted to receive sheets, straighten them and feed them to a pair of rolls, and mechanical means for adjusting the said revolvable inwardly sloping guide portions sideward in relation to the said endless conveyer and comprising a pair of movable frame members each of which engage reverse screw portions of adjustment shafts transversely positioned in the said sheet feeding mechanism so as to induce simultaneous movement of the said revolvable guide portions toward their respective sides of the said sheet feeding mechanism and vary the effective sheet conveying and straightening width of the said mechanism.

WILLIAM NEWBY. ADOLPI-I F. FRAZIER.

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