US982888A - Apparatus for rolling metal shapes. - Google Patents

Description

E. E. SLICK. APPARATUS FOR ROLLING METAL SHAPES. APPLICATION FILED AUG. 4, 1 90e.

, Patented Jan.31,191 1.

O 2 SHEETS-SHEET 1. ",7

Fzy Z. 8

INVEN'I'OR E. E. SLICK.

I APPARATUS FOR ROLLING METAL SHAPES.

APPLICATION FILED AUG. 4, 1906.

982,888. I Patented Jan.31, 1911.

2 BHEBTSBHEBT 2.

iyj

Tiff" M WITNE ES INVENTOR 1 EDWIN E. SLICK, F BITTSBURG, PENNSYLVANIA.

APPARATUS FUR ROLLING METAL SHAPES.

Specification of Letters Iatent.

Patented Jan. 31, 1911 Application filed August 4, 1906. Serial No. 329,166.

To all whom it may concern: 7 Be it known that I, Eow'm E. SLICK, of Pittsburg, Allegheny county, Pennsylvania,

, have invented a new and useful Improvement in Apparatus for Rolling Metal Shapes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a plan view, partly in section, showing my improved apparatus; Fig. 2 is a side elevation of a stand of reducing rolls showing the last reducing pass; Fig. 3 is a side elevation of the supplemental stand of rolls, showing the first bending pass; and

Fig. 4 is a similar view showing the finishing stand of rolls in which the metal is given its final form.

My invention rclates to apparatus used in rolling flanged metal shapes and is shown as it is applied in rolling shapes known commercially as angles.

The object ofmy invention is to provide improved means for forming such shapes by which the metal is reduced and bent into its finished form.

Another object of my invention isto provide improved mechanism for driving such forming means by the use of which the life of the rolls is increased and the time necessary in making the shapes is reduced.

The invention consists in the arrangement which a re carried on the usual housing shoes 6. The rolls 2, 3' are rotated by the roll pinions 7 which are carried in bearing 8 mounted in the pinion housings 9 which are also carried on the shoes 6, the rolls 2, 3 and pinions 7 being connected to ether by the usual coupling boxes 10 and spindles 11.-

v The lower pinion 7 is connected by coupling boxes 12 and a leading spindle 13 with the crab 14 which is mounted on the shaft 15 of the driving motor, which niotor may be of any desired type. In front of the finishing stand of rolls is an additional two -high stand comprising the top roll 16 and bottom roll 17 carriedon bearings 18 in the roll housings 19, the housings 19 being mounted on housing shoes 20; The inions 21 are carried on the bearings 22 w iich are mounted in the pinion housings 23, these housings also being supported on the housing shoes 20. The rolls 16, 17 and pinions 21 are connected together by means of the coupling boxes 24and spindles 25'and the bottom pinion 21 is connected by coupling boxes 25 and leading spindle 27 with the crab 28 which is securely keyed to a driving. shaft 29, the shaft 2!) being carried by the bearings 30.

Keyed to the crab 14 on the motor shaft 15 is a spur gear wheel 31 which meslieswith an idler spur gear 32 on the shaft 33 which is mounted in the bearings 34. The idler wheel 32 also meshes with a spur gear wheel 35 which is mounted so as to rotate on the shaft 29. Also mounted on the shaft 29 is a jaw clutch 36, 36, the driving member 36 being secured to and rotated by the spur gear 35. The driven member 36 of the clutch is splined. to the shaft 29 so as to rotate it and through the connecting mechanism, to positively drive the rolls 16, 17. The jaws of the clutch are normally held in engagement with each other by means of the spring 37.

The bending rolls 16, 17 may be located in front of the finishing rolls 2, 3 as shown, so as to prepare the shape being rolled to enter the subsequent finishing pass, in which rolls it is bent to its final form or the bending rolls may be in 'front of a stand of reducing rolls to bend the partly reduced shape in a suitable manner to enter the later reducing pass.

The operation of the apparatus is as follows :The shape to be finisher], having been rolled through the pass a in Fig. 2 is delivered into the pass b in the forming rolls 16, 17 shown in Fig. 3. These rolls bend the metal so as to readily enter the finishing pass a in the rolls 2, 3 in which the shape is finished by bonding to its final 't'orm. \Vl1en the metal enters the pass 7;, the rolls 16, 17 are positively driven through the jmwclntrh 3 6, 36' until the front end of the metal enters the pass a in the rolls 2, 3. The rolls 2, in the finishing stand of rolls are rotated at a higher surface speed than those in the supplemental bending rolls 16, 19. This causes the metal when it enters the finishing rolls to be fed forward at the same rate of speed as that of the surface of the finishing rolls 2, 3 and by the frictional contact of the metal with the surfaces of. the rolls 16, 1 7, the metal which is now in both sets of rolls, causes the rol1s.16, 17' to rotate at the same surface speed as that of the finishing rolls 2, 3. \Vhen the speed of the supplemental rolls 16, 17 is increased so as to rotate faster than shaft 29 the jaw clutch 36 advances on the jaw clutch 36, the inclined faces of the jaws sliding on each other and causing the jaw clutch 36 to slide on shaft 29 and to-compress the spring 39.

' When. the metal has been passed through the supplemental rolls l6, 17 the speed of these rolls is reduced gradually untilthe jaws on .the clutch are againin contact, when the rolls are again positively rotated by the clutch at the same speed as the shaft 29 until such time as a new shape has again entered both sets of rolls. 'As is shown in Figs. 2, 3 and 4:, in addition to the passes a, b and c, duplicate passes a, b, c are provided which are used when the first passes have become I worn by use, in this way increasing the life of the rolls and reducing the necessity for frequent changing of the rolls.

The advantages of my invention will be apparent to those skilled in the art. By having an independent set of rolls for bending the material I am enabled to make metal shapes, heretofore considered impossible. The difliculties experienced in making shapes having wide and thin flanges, are lessened, and the output of such mills is vgreatly'increased. 7

By the use of the clutch mechanism for driving the bending rolls, the metal may be in both the bending rolls and a later pass in the next stand of rolls at the same time, slipping between the'contaeting surfaces of the metal and the rolls is prevented, and both stands of rolls are drivenat the same surface speed.

Variations may be made in the construction and arrangement of the apparatus without departing from my invention. The finishing stand may \reduce the metal or simply bend it. 1 The diameters of the bending rolls may be much less than those of the next stand of .rolls, or the bending rolls may be positively driven at a slower speed. The bending rolls may be positively driven by an independent motor instead of the clutch mechanism shown, and other changes may be .n ade withinthe scope of the claims.

the combination with a stand of forming rolls having a reducing pass, of a second I stand of rolls having a bending pass in. front of the forming rolls and arranged to bend partly reduced blanks preparatory to further .shaping them in the reducing pass of said forming rolls; substantially as described.

3.- In apparatus for rolling flanged shapes, the combination with a stand of finishing rolls having a finishing pass therein, of a stand of bending rolls in front of the finishing rolls and having a bending 'pass arranged to bend partly formed blanks. preparatory to giving them their final shape in the finishing pass of said finishing rolls; substantially as desribed.

4. In apparatus for rolling flanged shapes, the combination with a' stand of forming rolls having passes arranged to reduce metal blanks, of a stand of bending rolls in front of said forming rolls and adapted to bend and feed partly reduced blanks into a finishing pass in the stand of forming rolls; substantially as described.

the combination with a stand of reducing rolls having reducing passes, of a stand of bending rolls having bending passes, the

,bending rolls being in front of and adjacent to the rolls having reducing passes, and being adapted to bend and feed partly formed blanks into the reducing passes of said reducing rolls; substantially as described.

6. In apparatus for rolling flanged shapes, the combination witha stand of reducing rolls of a stand of bending rolls in proximity to the reducing rolls and arranged to bend partly formed blanks preparatory'to further shaping them in said reducing rolls, the surface speed of the bending rolls and reducing rolls being equalized by frictional contact with blanks simultaneously in both stands of rolls; substantially as described.

In testimony whereof, I have hereunto set my hand.

EDWIN F; SLICK. Witnesses:

H. G. R. BENNETT, R. D. LITTLE.

Images