US2247050A

US2247050A - Rolling mill guide and shoe

Info

Publication number: US2247050A
Application number: US253469A
Authority: US
Inventors: David S Campbell
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-01-30
Filing date: 1939-01-30
Publication date: 1941-06-24
Anticipated expiration: 1958-06-24

Description

June 24, 1941. D, s' CAMPBELL l i 2,247,050

ROLLING MILL GUIDE AND SHOE IN VENTOR.

BY Dar/d.' ampel/ ATTORNEY.

June 24, 1941. D s, CAMPBELL 2,247,050

ROLLING MILL GUIDE AND slm1 Filed Jan. :50, 1939 2 -sheets-shew 2 /6 ummm l l INVENTOR.

ATTORNEY.

Patented `lune 24, 1941 STATES PATENT Trios 2,247,050` noLLiNeivnLL GUIDE AND snor David Campbell, Springdale, Conn.

Application January 30, 1939, Serial No. 253,469

' (ci. sel- 5.1)

, 6 Claims.

The purpose of this invention is to provide improvements in means for feeding bar material to the rolls of rolling mills, in which the material is positively Vheld as it is fed to the rolls, and in which the holding means may readily be adjusted to material of different widths, and also in which the position thereof in relation to the roll may readily be changed.

The invention is a combined guide and shoe device in which a lower felt pad is mounted onl a movab-le plate, with an upper felt pad also mounted on a movable shoe, in which adjustable means is provided for guiding the edges of the bar, and means is provided for holding the felt pad of the shoe against the upper surface of the bar.

In rolling relatively small and thin bars in rolling mills, the ingots are rst rolled to form bars, and these are 'continually rolled, increasing the width and reducing the thickness until, as in some instances, the final bar is reduced to approximately .065 inches in thickness, although it will be understood that plates of different thicknesses greater or less than this figure are used for diierent purposes; however these relatively thin bars are fed to rolls, and, because they are relatively thin, it is difficult to feed the bar to the roll with any degree of assurance that the bar will not buckle or twist, and, in the guides and shoes used at the present time, the bar is often creased or one edge bends downward and the other upward, causing a twist, and there is, therefore, considerable breakage, Whereas, by rmly holding the bar as it enters the rolls, breakage from these causes is substantially eliminated.

The guides and'shoes used at present are also objectionable in that they are provided in different widths so that it is necessary to change the shoe and guides when rolling material of a different width, whereas in this device the width is relatively adjustable. The bridle bars and other supports, that cause scratches from dust and the like thereon and, therefore, mar the surface of the finished metal, are eliminated and replaced by smooth felt pads which frictonally grip and hold the material. Bars being fed to rolls of this type with the usual guide cut into the guide because the edges of the bars are relatively thin, and, therefore, grooves are formed, whereas, in this device, the edges engage posts at four points, and these posts have four surfaces and may be adjusted to present different sides or surfaces to the edges of the plates as they are drawn through the device. The speed at whichv these bars are drawn through the rolls and holding means is relatively high, and this results in scratches and grooves caused by dust and fine particles being embedded in the felt, and the bars also wear slight ridges in the pads which mark the nished metal. However, with this device, the position of the bars may readily be adjusted laterally from either side, and the pads may be moved backward and forward across the bars, making it possible to present different surfa'ces and preventing ridges wearing in the pads.

The object of this invention is, therefore, to provide an improved guide and shoe for rolling mills in which bars being fed to the rolls are positively and, at the same time, frictionally held.

Another object is to provide a combination guide and shoe for rolling mills in which the parts thereof may readily be moved laterally.

Another object is to provide a combination shoe and guide for rolling mills, in which the guides at the sides may readily be adjusted independently.

A further object is to provide a combination guide and shoe for rolling mills which may readily be adjusted to materials of different widths, eliminating the necessity of using shoes and plates of diierent widths.

And a still further object is to provide a combination guide and shoe for rolling mills for positively feeding material to rolls which is of a relatively simple and economical construction.

With these ends in view the invention ernbodies a 'combination guide and shoe comprising a bed plate, four posts slidably mounted on the said bed plate, screws extending through mounting means for the posts for adjusting the positions thereof, a plate slidable between the posts having a felt covering, a shoe superimposed above said plate also having a felt covering on the lower surface, and means readily raising and lowering said shoe.

Other features and advantages of the invention will appear from the following description taken in connection with the drawings, wherein:

Figure 1 is a View showing a front elevation of the device.

Figure 2 is a cross section through the device showing an outline of the rolls, and also showing a bar through the device.

Figure 3 is a detail showing an alternate construction in which side plates are used instead of posts. j

Figure 4 is a plan View of the device with parts broken away. s

Figure 5 is a cross section substantially on the center of the device looking in the same direction as Figure 1 with parts shown in elevation.

In the drawings the device is shown as it may be made, wherein numeral I indicates a bed plate, numeral 2, a sliding plate, and numeral 3, a shoe superimposed above the plate 2.

The bed plate I is slidably mounted on a cross bar 4 and held in position thereon by downwardly extending

flanges

5 and 6 which freely hold the bed plate on the bar, and at the same time permit it to slide laterally of the device or longitudinally on the bar.

Posts

1, 8, 9 and I0 are slidably mounted on the bed plate I through bars II and I2, and the bars are provided with downwardly extending guides at the ends, indicated by the numerals `I3 and I4. The guides I3 and I4 are of suiicient length to hold the bars II and I2 parallel, so that the bars may travel across the bed plate I in parallel relation.

Extending through the bars II and I2 are adjusting screws I5 and I5 which are threaded in the bars, and also in side plates I1 at the sides of the bars, and the screws are held in vbearings I3 extending upward from the ends of the bed plate I. The screws are also provided with outwardly extending heads I9 and 20 by which they may readily be rotated to adjust the positions of the posts through the bars II and I2, and it will be noted that the posts on each side may be Y adjusted to different positions independently so that the bars entering the rollers may be centered on the device or toward either side.

The sliding plate 2 rests freely upon the bars II and I2, and may readily be moved backward and forward to prevent grooves being worn in a felt pad 2I on the upper surface thereof. It `will be understood, however, that this sliding plate 2 may be mounted or held by any .other means .or arranged in any other manner.

Above the sliding plate 2 is the shoe 3 which is suspended from a cross-bar 22 by a 'screw 23 through a yoke 24 which is secured to the-upper surface of the shoe, and, as the screw turned by a handle 25 at the upper end, it will moy@ upward and downward, thereby raising and lowering the shoe 3. The under-surface of the `shoe 3 is also provided with a felt pad 26, and the bar of metal passes between the pads 2I and 26. A s the bar is started into the rolls, the shoe .3 may be lowered until it rests firmly upon the bar, however this may be adjusted to exert any pressure desired on the bar. The cross-bar `22 is shown, in the design shown in Figure 1, as being mounted upon clips 21 and`28, and this is mounted with bolts 29 and 30 in openslots 3l and32 extending inward from the ends thereof which permits the cross-bar 22 to be moved toward either side, providing lateral adjustment to com.- pensate for the movement of the lower part of the device. v

The posts 1, `8, 9 and I 0 are Aprovidedjwith rounded corners, as shown in Figure'4,and`these are mounted upon the bars I I and I2 Aby bolts `33, and it will be noted that, by loosening the bolts, the posts may be rotated so that, as one side wears, another 'side may be turned to engagethe edge of the ba-r of metal passing through `the'device. This makes it possible to guide Vthe edges of the bar Ywith smooth surfaces instead of permitting slots to wear in the guiding plates, and, as all four sides of the posts wear, the posts may be discarded and replaced. lIt will also'fbe understood that these posts may be `o'f any `suit.- able size or may extend continuously across the device, or any means may be used forguiding the edges of the bars of metal, and it will also be understood that the posts may be mounted or adjusted in any manner or by any means.

The posts may also be replaced by continuous side plates 34, as shown in Figure 3, extending across the guide, and these may be held by bolts 35 in slots 35 in a bed plate 31, or mounted on the bars II and I2, or in any manner, and the shoe may be shortened to fit between these plates.

In Figure 5 the cross bar 22 is replaced by a continuous bar 3B, and the screw 23 may be threaded therein as shown; however any means may be provided for mounting the screw for supporting the shoe.

The device may also be provided with

additional guide rails

39 and 40 to guide the bar at the edges to the rolls, and these may be angle shaped in cross section and bolted to extensions 4I and42 at the ends of the bars II and I2, or mounted in any manner or by any means. These rails may or may not be used as may be desired, or any other means may be used to guide the bars from this device to the rolls. These

rails

39 and 40, however, make it possible to space the shoe vand guide of this invention a short distance from the rolls to facilitate feeding or starting the end of the bar to the rolls.

It will be .understood that other changes may be made in the kconstruction without departing from the spirit of the invention. One of which changes may be in the use'of other means for raising 4and lowering or adjusting the position of the shoe, another may be in the use of a bed plate or base of any other type or design, and still another may-be in the use of this combination of guides with a plate, with the shoe for any other purpose.

The construction will be readily understood from the foregoing description. In use the device may be provided as shown and described, and it will'be noted that it is positioned directly in .front of Ythe rolls vso that the bars of .metal are fed through the device and between the felt pads, and, when the end of the bar is started in the rolls, `the shoeis forced downward so that it holds the .bar in tension, and, by adjusting the screw in this manner, any suitable tension may be obtained. With the bar Vheld in this manner, it may be continuously fed to the roll without ,danger .of breakage, as all buckling and twisting are eliminated, and, as the holding means may readily be shifted from side to side, the possibility `of grooves wearing in the pads is eliminated so that substantially all marring, scratching Vor injury to the finished plate is eliminated. I

Having thus fully described the invention, what I `claim as new, and desire to secure by Letters Patent, is:

1. A -roll guide and shoe of the type 'having upper -and lower cushioned gripping and tensioning plates with one adjustable in Vrelation to the other, and -with guides for sheet material cooperating with said plates, characterized by a laterallgyvrmovable bed plate upon which the guides and lower tensioning plate are mounted, longitudinal 4bars slidable on said b ed `rplate, means-adjusting the positions of the bars later.- ally independently, 4posts extending upward from the pendSfof said rbars forming the said guides, a GROSS bill positioned :above the said bed plate, and :adjustable supporting means said `cross bar attached to the upper tensioning plate in which the means adjusting the longitudinal bars comprises screws rotatably mounted at the edge of the bed plate.

5. A roll guide and shoe as described in claim i,

yfurther characterized in that the tensioning plates are freely slidable between the guide posts.

6. A roll guide and shoe as described in claim l, in which all of the parts are freely slidable laterally for positioning material fed thereby to rolls 10 at different points along the rolls.

DAVID s. CAMPBELL.