US2481138A - Adjustable roll mounting - Google Patents

Description

Sept. 6, 1949,

D. L MERCER ADJUSTABLE ROLL MOUNTING 2 Sheets-Sheet 1 Filed Aug. 21, 1945 I INVENTOR.

BDYQV/D 1.3159659 v I I Sqmh 1949.

D. L. MERCER ADJUSTABLE ROLL MOUNTING 2 Sheets-Sheet 2 Filed Aug. 21, 1945 Patented Sept. 6, 1949 ADJUSTABLE ROLL MOUNTING David L. Mercer, Gary, 11141., assignor to Carnegie- Illinois Steel Corporation, a corporation of New Jersey Application August 21, 1945, Serial No. 611,879

3 Claims.

1 This invention relates to adjustable roll mountings and more particularly to mountings which permit both axial and vertical adjustment of the roll shafts.

In various types of .mills for rolling metal in grooved rolls, it is customary to provide axial adjustment so as to align the grooves in the upper and lower rolls. In forming certain metal shapes between upper and lower profiled rolls, fine axial adjustment is doubly necessary in order to align the rolls and passes in successive closely disposed stands and to provide the necessary adjustment for different gauges, since vertical adjustment will not provide the proper adjustment between obliquely disposed roll faces. Adjustable mountings heretofore used generally relied on clamping the roll bearing members or chocks to the housing in various ways and accordingly it was necessary to release such clamping members in order to vertically adjust the rolls. Consequently after vertical adjustment, it was necessary to again align the rolls axially.

It is accordingly an object of the present invention to provide an improved means for effecting axial adjustment of roll members.

It is a further object to provide means for axially adjusting roll members which permits vertical adjustment Without effecting the axial adjustment.

It is a further object of my invention to provide roll adjusting means which permits fine adjustments and at the same time is simple in design and of rugged construction.

The foregoing and further objects will be apparent from the specification and drawings, wherein:

Figure 1 is a front elevation of a mill stand of the type to which my improved adjusting means is particularly adapted;

Figure 2 is a left end view;

Figure 3 is a right end view;

Figure 4 is a view, partly in section, along lines IV--IV of Figure 3;

Figure 5 is a sectional elevation on line V-V of Figure 4;

Figure 6 is a view, partly in section, on lines VIVI of Figure 5;

Figure 7 shows one form of bearing mounting to prevent axial movement between the roll shaft bearing; and

Figure 8 is a view similar to Figure 7 but showing a modification.

Referring more particularly to the drawings, the numeral 2 designates forming mill stands composed of a pair of housings 4 having vertically arranged slideways for bearing chocks 6 and 8, in which are journaled the necks of roll shafts I0 and 12. At least one of the roll shafts is connected to a suitable source of power. The necks are freely slidable in left hand bearing chocks 6 but are secured against endwise or axial movement in the chocks 8. This may be done by providing two collars I 4 on the roll neck with the bearing thereof therebetween, as shown in Figure 7, or holding the bearing between a shoulder l4 and a jam nut I 6, as shown in Figure 8. Vertical positioning or adjusting of the chocks and the shafts journaled therein is accomplished by conventional screw-downs l8 and separating screws 20.

Forming roll members A and B mounted on the shafts I0 and I2 may be composed of segments, which are properly spaced on the shafts by spacers C and held in position between collars D and jam nut E. The segmental roll A has an oblique face A, which cooperates with an oppositely inclined oblique face B, to form a workpiece passed therethrough. It is accordingly seen that the rolls of each stand must be properly aligned and that in case of gauge change, it is necessary to move the rolls accurately with respect to each other. In such event, lateral adjustment of one or both of the shafts ID or I2, is necessary, and such adjustment is provided by the chocks and mountings hereinafter described in detail.

Disposed in inwardly opening slots or recesses 22 in the housings, are outwardly extending flanges or legs 24 of adjustable guides 26, adapted to have a close sliding fit in keyways 28 on opposite sides of chocks 8. The leg portion 24 of the guides are of less width or thickness than the slots 22 which permits lateral adjustment of the adjustable guides to thereby position the roll shafts. Screws 30 extending through the housing 4 and engaging nuts 32 positioned in housings 4 on either side of the legs 24 may be screwed inwardly or outwardly respectively to adjust and hold the guides in the desired position. Due to the sliding fit of the guides in the chocks, the chocks can be vertically adjusted by screws 18 and 20 without disturbing in any way the lateral or axial adjustment effected by screws 30.

While I have shown and described one specific embodiment of my invention, it will be understood that this embodiment is merely for the purpose of illustration and description, and that various other forms may be devised within the scope of my invention, as defined in the appended claims.

I claim:

1. A roll shaft mounting comprising a housing providing spaced uprights forming a vertical opening, a slot in the opening side of each of said uprights, a pair of elongated vertical guide devices each having a flange extending into the slot of an upright, means for adjusting said flange laterally of said slot and securing. said guide device in adjusted position, a roll shaft extending into said opening, a chock on said roll shaft disposed in the opening between said pair of guide devices, and

a slidable connection between said chock and each of said guide devices, whereby said means may laterally adjust and secure said guides and said connection may enable vertical sliding adjustment of said checks along the length of said guides without disturbing said lateral adjustment.

2. A roll shaft mounting comprising a housing providing spaced uprights forming a vertical opening, a slot in the opening side of each of said uprights, a pair of elongated vertically disposed T-shaped guide devices each having its leg portion extending into the slot of an upright, means for adjusting said leg portion laterally of said slot and securing said guide device in adjusted position, a roll shaft extending into said opening, a chock on said roll shaft disposed in the opening between said pair of guide devices, and a slidable connection between said chock and the head portion of each of said T-shaped guide devices, whereby said means may laterally adjust and secure said guides and said connection may enable vertical sliding adjustment of said chocks along the length of said guides Without disturbing said lateral adjustment.

3. A roll shaft mounting according to claim 2 in which the adjusting means comprises a screw on each side of each of said legs, each of said screws extending through the housing and bearing against the leg adjacent thereto.

DAVE) L. MERCER.

REFERENCES CITED The following references are of record in the

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