US1562488A - Adjustable leading-out guide - Google Patents

Description

G. BAEHR Nov. 24, 1925' ADJUSTABLE LEADING OUT GUIDE Filed March 22, 1923 mvsuroa WITNESSESS' MQW Patented Nov. 24, 1925.

UNITED STTES GEORGE IBAEHR, 0F IRWIN, PENNSYLVANIA.

' ADJUSTABLE LEADING-OUT GUIDE.

Application filed March 22, 1923.

To all whom it may concern:

Be it known that I, GEORGE BAEHR, a citizen of the United States, and a resident of Irwin, in the county of Westmoreland and State of Pennsylvania, have invented a new and useful Improvement in Adjustable Leading-Out Guides, of which the following is a specification. I

This invention relates to leading-out guides for die rolls. The object of the vention is to provide a rigid lead-out guide for rolls used for finishing bars of varying cross section and shape, and to mount such a lead-out rigidly, out of contact with the rolls, and yet adjustable to any desired relation to the forming groove therein.

The uses and advantages of the invention will more fully appear throughout the following specification:

Referring to the drawings Fig. 1 IS a partial section and side elevation of an embodiment of this invention applied to a pair of forming rolls, and Fig. 2 is a side elevation at right angles to the view shown in Fig. 1.

In rolling bars of special shapes, where such bars are of varying cross section and are in effect die forged by the rolls, as for example for use in concrete reinforcing, street railway tie rods, and the like, there is a tendency of the finished bar as it emerges from the forming rolls to cling to one or the other of the rolls, usually the lower one, and to be bent upward or downward following the forming groove in one of the rolls. Therefore, it is desirable to use a lead-out guide to strip the bar from the roll and keep it straight. Heretofore it has been customary to make such guides in the form of a bar pivoted at one end, with the other lying in the forming groove, and bearing loosely against the rolls. This has many disadvantages. The guide soon wears away, it helps to wear out the forming groove, sometimes it sticks, and causes a jamming of the rolls, it chatters, and the bar sometimes strikes the end of the guide tearing it out, and again the guide is not easily adjustable to the proper position. If too low it permits bending of the bars, if too high, it catches the end of the bar as it comes through.

It is desirable to have a lead-out which may be held rigidly in place, entirely independent of the rolls themselves, and which may be accurately adjusted and held in ad- Serial No. 626,764.

justed position. Such a lead-out guide is furnished by the apparatus illustrated and described in this specification.

The drawings illustrate a pair of rolls 1 and 2, which have forming grooves 3 and d in their periphery, in the usual manner. These forming grooves register at the point of contact of the roll, and a hot bar fed therethrough from right to left is given its final shape by the two registering grooves 3 and 4.

The rolls are supported in a housing or frame, comprising two upright rigid members 5 and 6. Between these two frame members and rigidly connected thereto by means of bolts 7 I provide a supplementary frame member 8. This is arranged in vertical position and is set away from the rolls as illustrated in Fig. 1. Supported by this frame 8 is a plate 9. This is clamped to the upper side of the frame by means of bolts 10, and a number of removable shims 11 are provided between the under side of the frame 8 and the upper side of the plate 9, so that the latter may be slightly raised or lowered with reference to the supporting frame by varying the number of shims used.

A guide member 12 is attached to the lower part of the plate 9 by means of bolts 13. The holes 14 in the guide 12 are in the form of slots vertically disposed, so that the member 12 may be raised or lowered slightly with reference to the member 9 and may be clamped in position after such adjustment. The guide member 12 extends inward toward the roll body and has its end cut into an arc concentric with the bottom of the forming groove in the roll 1. Normally this curved end 12 of the member 12 lieswell within the groove 3 of the roll 1., and the lower edge of the guide member 12 is on a level with the lowest point of the groove 3. By raising the member 12, by the adjustment above referred to, the curved portion thereof may be brought as near as desired, even to contact with the bottom of the groove 3.

Two plate members 15 and 16, the middle portions of which are bowed outwardly, and which are arranged in outwardly extending relation to each other, as clearly illustrated at the left of Fig 2, are fastened to the lower portion of the guide member 12 by means of bolts 17. The holes 18 in the plate members 15 and 16 are in the form of vertical slots, similar to the holes 14: above re ferred to. At their lower ends the plates 15 and 16 carry by means of bolts 20, extending through vertically elongated holes 21 a guide member 25, similar to the guide member 12 above referred to, except that it is turned oppositely on edge. This guide member 25 is attached by. means of bolts 26, extending through vertically elongated holes 2'7 therein to a plate 28, similar to the member 9, above described. This member 28 is attached to the lower side of the frame 8 by means of bolts 30. The frame and casting 28 are spaced apart by a plurality of removable shims 31, to permit vertical adjustment of the member 28. The inner end of the guide member 25 is cut in an are concentric with the bottom of groove-4 in the roll 2, and this end 25 normally extends into the groove 4i and nearly to the bottom thereof.

By the means above described I am enabled to adjust thelead-out guides 12 and 25 to a position as near as desired to the bottoms of the grooves 8 and 4. Consequently I may adjust them so that they positively and accurately strip off the hot bar 13 and guide it through the opening 35 formed between the guide bars 12 and 25 and the plates 15 and 16.

If desired, either one of the guides 12 or 25 may be raised or lowered vertically by loosening the bolts which clamp it to its supports. Likewise the two guides as a whole may be raised or lowered by adjust ment of the shims 11 and 31. The whole structure is strong and rigid, is not dependent in any Way upon the rolls themselves, and normally does not come into contact with the rolls. The guiding and carrying off function is positively performed and the results may be rendered certain by means of very accurate adjustments. Such adjustments are maintained by the fact that all of the lead-out members are rigidly connected, and may be clamped solidly in adjusted position.

I claim:

1. A stripping device for rolls, comprising a rigidly mounted frame, a supporting member attached to the frame by vertically adjustable means, a stripping guide attached to the supporting member by vertically adjustable means, said stripping guide having its free end extending into the forming groove of the die rolls and its edge in substantial alignment with the bottom of one of the forming grooves.

2. A stripping device for rolls, comprising a rigidly mounted frame, a supporting member attached to the frame by vertically adjustable means, a stripping guide attached to the supporting member by vertically adjustable means, said stripping guide having its free end extending into the forming groove of the die rolls and its edge in substantial alignment with the bottom of one of the forming grooves, and a similar guide similarly attached to the bottom of the frame, extending into the forming groove and having its edge in substantial alignment with the bottom of the other forming groove.

3. A stripping device for rolls, compris ing a rigidly mounted frame, a supporting member attached to the frame by vertically adjustable means, a stripping guide attached to the supporting member by vertically adjustable means, said stripping guide having its free end extending into the forming groove of the die rolls, and adapted to I guide stock coming from the rolls.

4. A stripping device for rolls, comprising a rigidly mounted frame, a supporting member attached to the frame by vertically adjustable means, a stripping guide attached to the supporting member by vertically adjustable means, said stripping guide having its free end extending into the forming groove of the die rolls and adapted to guide stockcoming from the rolls, and a similar guide similarly attached to the bottom of the frame, extending into the forming groove and adapted to guide stock coming from the rolls.

In testimony whereof, I sign my name.

GEORGE BAEHR.

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