US613476A - Rollinq-mlll - Google Patents

Description

No. 68,476. Patented Nov. I, I898.

F. H. RICHARDS.

ROLLING MILL.

(Application filed Sept. 4, 1897.) (No Model.) 4 Sheets-$heet I.

In men to]:

Witnesses. I

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Patented Nov. I, I898. F. H. RICHARDS.

ROLLING MILL (Application filed Sept. 4, 1897.)

4 Sheets-Sheet 2.

No. 6l3,476.

(No Model.)

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No. e|s,47s. Patented Nov. I, I898.

F. H. men/mus.

ROLLING MILL.

(Application filed Sept. 4, 1897.)

(No Modl.) 4 Sheets-Sheet 3.

Inventor Witnesses. .l

i u I I THE nonms PETERS co, PHOTO-LITNQ, WASHWGTGN. o. c.

Patented Nov. I898. F. H. RICHARDS.

ROLLING MILL.

(Application filed Sept. 4, 1897,)

4 Sheets-Sheet 4.

(No Model.)

Inventor.

Wz'Znesses.

m: NORRIS PETiRS co. wowumb. wnsulNaTON. v. c.

UNITED STATES PATENT OFFICE.

FRANCIS H. RICHARDS,.OF HARTFORD, CONNECTICUT;

ROLLING-MILL.

error-mum forming part of Letters Patent No. 613,476, dated November 1, 18953. Application filed September 4, 1897. Serial No. 650,567. (1% model.)

To all whom it may concern:

Be it known that I, FRANCIS H. RICHARDS, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Rolling Mills, of which the following is a specification.

This invention relates to rolling-mills; and one of the objects thereof is the provision of an effective and simple apparatus in which the material under operation will be simultaneously subjected to a combined rolling and swaging action in two intersecting directions.

A further object of the invention is to provide an apparatus in which, by the same set of rolls, a rolling and swaging action on the work in two difierent directions and also a longitudinal feed thereof may be obtained; and still a further object is to obtain lateral displacement of the work by rolling and swaging the same in a plane transverse to its line of feed.

In the drawings accompanying and forming a part of this specification, Figure 1 is a front view of one form of this improved rolling-mill, with a part of the framework in section. Fig. 2 is a top view thereof. Fig. 3 is a left-hand side View thereof,with part of the framework broken away. Fig. 4: is a vertical sectional view of one of the uprights or standards, partly in elevation. Fig. 5 is a transverse sectional view of such standard, taken in line a a, Fig. 4. Figs. 6 and 7 are illustrative views of the'rolling and swaging actions of the rolls when in operation, the same beingshown in different positions. Fig. 8 is a plan View of a portion of a bar to be worked, the narrow and wide parts thereof respectively representing the same before and after it is subjected to the action of the rolls. Fig. 9 is a cross-sectional view, and Fig. 10 is an edge View, of said bar, showing the difierent thicknesses of the same before and after it has been subjected to the action of the rolls.

Similar characters of reference designate corresponding parts in the different figures.

crating roll, each of said rolls preferably having an approximately spherically-shaped or other suitable form of Working face, and one or both of the rolls being operative in different or intersecting directions,whereby the material under operation is subjected to a combined rolling and swaging action and is displaced both longitudinally and laterally, and better results are therefore accomplished.

This improved machine comprises generally a plurality or set of pressers or rolls having movements in two intersecting planes and mechanism for so operating the same, and which mechanism preferably comprises a plurality of independent means, one operative to rotate the rolls in one direction with a relatively slow speed and the other operative at a relatively high speed to oscillate or reciprocate said rolls simultaneously with their rotary movement in a plane intersecting such plane of rotation,whereby they operate with a combined rolling and swaging action upon the work.

As a preface to a further description of this improved rolling-mill it will be understood that the various parts of the apparatus may be more or less modified without aifecting the general scope of the invention.

In the preferred form thereof herein shown and described this improved rolling-mill comprises a suitable base 2, provided with a pair of uprights or standards 3 and 4, secured to said base or formed therewith, one at each end or side thereof. In the construction herein shown the standards are secured in position by bolts 4:, preferably extending through said uprights from top to bottom, said bolts also constituting a means of securing in position suitable caps 5 and 6, one carried by each standard, and which caps are in the nature of journal-boxes for supporting the carrying means, hereinafter described, of one of the rolls. I

The means for rolling the bar longitudi= nally and simultaneously spreading or swag ing the same laterally is shown herein, comprising a pair of rolls 7 and 8, one disposed above the other and each having an approximately spherically-shaped working face, and

which rolls for the purposes of this specification may be designated herein as spherically-shaped rolls. The lower roll in the structure shown herein constitutes a work-support ICO ing member, although in some forms of the machine other work-supporting means may be used. It is, however, to be understood that rolls having other suitably-shaped working faces may be employed, if desired. To support these rolls in proper position to engage the bar when the same is fed between the Working faces thereof, suitable roll-carriers are provided and shown herein, comprising a pair of casings 9 and 10, one for each roll. The upper roll-carrier casing 9 is shown extending around the upper half of the upper roll 7, and is provided with journals 12, one at each end or side thereof, and which are carried by suitable bearings of the caps 5 and 6. The lower roll-carrier casing 10, which is similar to the casing 9, extends around the lower half of the lower roll and is likewise provided with journals 13, adjustably mounted in the uprights. To provide for this adj ustment of the lower roll toward and from its companion roll, thereby to permit different thicknesses of bars to be fed between such rolls, the journals 13 are shown carried byadjustable members or blocks 14, mounted in suitable ways of the standards. Each of these blocks is shown provided with flanges 15, engaging in this instance the inner faces of its respective upright, whereby such block is maintained in position. As one means for adjusting these blocks each upright is shown having a tapering slot 16 extending transversely through the same beneath its adj ustable block for the reception of a suitable tapering member or wedge 17, having threaded ends for the reception of adjusting-nuts 18. On adjusting these wedges the adjustment of the blocks, and thereby the roll-carrier 10 and its roll 8,toward and from the companion roll 7 isobtained. Tosupporttherollsin positionin their casings, the upper roll is shown fixedly secured to a shaft or spindle 19, journaled in hubs 20, formed at each side of the casing 9, while the lower roll is preferably loosely mounted on a shaft or spindle 21, non-rotatively supported by hubs 22 of the lower casing 10. It is obvious, however, that this means of supporting the rolls may be more or less varied without departing from the general scope of the invention. For rotating the rolls,- preferably slowly, thereby to roll or press the bar 100 longitudinally, and also in this construction of machine to feed the bar lengthwise, although other and separate barfeeding means may be used, if desired, in which case the rotation of the rolls may be obtained by the feeding movement of the work itself, suitable means is provided, which in the preferred form thereof herein shown and described embodies gearing. Fixedly secured to one end of the shaft 19, which is shown projecting beyond the casing 9 for this purpose, is a worm-wheel 23, in engagement with which is a worm 24:, journaled in brackets or arms 25, projecting from said casing 9. Secured to the end of the worm-shaft 24: is a spur-wheel 26, which meshes with a companion spur-wheel 27, loosely mounted on the hub 9 of the roll-carrier casing 9. J ournaled in one of the caps, as the cap 6, is a shaft carrying at one end a pinion 29, in mesh with the loose gear 27. shaft carries a belt-pulley 30, connected bya driving belt 31 with a similar pulley 31, mounted on a crank-disk driving-shaft 32, supported by suitable journal-boxes 32, carried by the base 2, and which shaft is provided with the usual fly or balance wheel 33.

From the above it will be seen that when power is imparted to the driving-shaft motion will be transmitted through the gearing to the roll-shaft 19, thereby to rotate the upper roll 7, the lower roll rotating therewith owing to the longitudinal movement of the bar, which is thus fed through the rolls and simultaneously therewith pressed or rolled.

To impart reciprocatory or oscillatory movement to the rolls simultaneously with their rotary movement, and preferably at a relatively high speed as compared with the rotary speed thereof, thereby to laterally roll or swage the bar during the feeding and rolling of the same longitudinally, suitable means is also provided. In the preferred form thereof herein shown and described each roll-carrier casing is provided at one side thereof with an arm 35, rigid therewith, the outer ends of said arms being preferably bifurcated for the reception of connecting-rods or pitmen 36 and 37, the upper ends of which are pivotally se= cured thereto. The lower ends of these con necting-rods are secured in the usual manner to disks 38 of the driving crank-shaft 32 and at diametrically opposite points, so that the casing-arms will be operated simultaneously toward and from each other, thereby to oscillate the rolls to swage and spread the bar laterally in the manner illustrated in Figs. 6 and 7. This oscillation of the rolls in the construction of machine shown herein tends to shift the bar to and fro widthwise, thereby facilitating the rolling of the same.

For rotating the crank-shaft 32 a connect ing-rod 39 is secured to the wrist-pin 40 of the outer disk 38, and which rod maybe connected with any suitable source of power.

From the foregoing it will be seen that when power is imparted to the driving-shaft 32 the rotation of the rolls through the gearing takes place at one predetermined speed, simultaneously with which occurs the oscillatory or reciprocatory swaging movement of said rolls in a direction intersecting their plane of r0 tation and at a somewhat higher speed.

By mounting the gear 27 loosely on the hub of the upper casing it acts as an intermediate gear to impart motion at all times from the pinion 29 to the gear 26, while at the same time permitting reciprocatory or oscillatory movement of the casing without disengaging the gears, in a manner that will be readily understood without a more particular descrip tion.

It will be seen that driving mechanism sub- The opposite end of this 613,476 I is that the rolls rotate in the same direction as the longitudinal plane of the metal, and thereby both feed and roll it lengthwise, and that simultaneously with such rotary movement they are reciprocated, and thereby roll and spread such metal in a plane transversely of its longitudinal plane, so that the metal is rolled in two directions simultaneously and is thus effectively swaged or spread into the desired form. It will also be seen that in the particular structure shown, which may, however, be varied without departure from the scope of my invention, each roll has two axes, one intersecting the other and preferably extending at about right angles thereto.

By the use of rolls having properly-shaped working surfaces operative in intersecting planes and engaging the metal successively at different points transversely a more effective working action is obtained than is the case where the rolls are sufficiently wideto engage the metal throughout its entire width, as in the present instance the metal adjacent to the point of engagement is free to spread, and consequently the pressure thereof at the one engaging point permits a quicker and better displacement of the metal by the swaging action of the roll or rolls. Moreover, by this construction of the rolls, in which only a comparatively small part of the working faces thereof are in engagement with the bar at any one time, the rolls do not become heated, as one part thereof is permitted to cool While the contact part thereof is in operative engagement with the metal.

It will be understood that in some cases one roll carried for simultaneous movements in intersecting planes may be used in connection with an ordinary roll on the opposite side of the work.

I claim as my invention- 1. In a metal-working machine, the combination of a roll having an approximately spherically-shaped working face; and means for actuating said roll in intersecting planes located one plane transversely to the other plane, and both planes relatively vertical to the work.

2. In a metal-working machine, the combi nationof a plurality of rolls having approximately spherically-shaped working faces, and

disposed in position to receive work intermediate such working faces; and means for actuating each of said rolls simultaneously in in tersecting planes relatively vertical to the work.

8. In a rolling-mill, the combination, with a roll, of means for imparting to the same rolling and swaging actions in intersecting planes relatively vertical to the work.

4. Ina rolling-mill, the combination, with a work-support, of an approximately spherically-shaped roll, and means for imparting to the same rolling and swaging actions in intersecting planes.

' 5. In a machine of the class specified, the combination of a presser operative simultaneously in intersecting planes located one plane transversely of the other plane and both planes relatively vertical to the work, and means for operating said presser.

6. In a rollin'g mill, the combination of two cooperating rolls; means for rotating said rolls; and means for reciprocating said rolls in a plane relatively vertical to the work to cause them to operate with a swaging action upon the material.

7. In a machine of the class specified, the combination of a roll; and means for rotating said roll, and for oscillating said roll in a plane relatively vertical to the work.

8. The combination of a presser-carrier supported for oscillatory movement in a plane relatively vertical to the work; a presser carried thereby and movable therewith, and also having a movement independently thereof in a plane intersecting its plane of movement with said carrier; and means for operating said carrier and presser.

' 9. The combination of a roll; supporting means mounted for oscillatory movement in a plane relatively vertical to the work; a roll having an approximately spherically-shaped working face carried by said supporting means for oscillatory movement therewith, and rotary movement independently thereof; and means for oscillating said supporting means, and thereby the roll, in a plane relatively vertical to the work, and for rotating said roll simultaneously with its oscillatory movement, whereby said roll is movable in intersecting planes.

10. The combination of a pair of casings supported for oscillatory movement; a spherically-shaped roll carried by each of said cas ings for oscillatory movement therewith, and rotary movement independently thereof, the working faces of said rolls being in position to receive work intermediate thereof; and means for simultaneously imparting oscillatory movement to said casings and rotary movement to said rolls in intersecting planes relatively vertical to the work.

11. The combination of a pair of carriers supported for oscillatory movement; a pair of convexly shaped rolls carried thereby for oscillatory movement therewith and rotary movement independently thereof in a plane intersecting the plane of said oscillatory movement, both planes being relatively vertical to the Work; means for rotating said rolls; and independent means for oscillating said carriers and thereby the rolls simultaneously with the rotary movement thereof.

12. The combination of a pair of carriers supported for oscillatory movement; a pair of spherically-shaped rolls carried thereby for oscillatory movement therewith and rotary movement independently thereof in a plane intersecting the plane of said oscillatory movement, both planes being relatively vertical to the work; means embodying gear mechanism for rotating one of said rolls; and independent means for oscillating said carriers and thereby the rolls simultaneously with the rotary movement thereof.

13. The combination of a pair of carriercasings supported for oscillatory movement, one disposed above the other; a pair of rolls carried by said casings for oscillatory movement therewith; means for rotating said rolls; and means for oscillating said casings and thereby the rolls simultaneously with the rotary movement of said rolls, both movements of the rolls being in planes relatively vertical to the work.

14:. The combination of a pair of carriers supported for oscillatory movement, one of said carriers being adjustable toward and from the other; rolls supported by said carriers for oscillatory movement therewith and rotary movement independently thereof; and means for rotating said rolls and oscillating said carriers simultaneously in intersecting planes relatively vertical to the work.

15. The combination, with a pair of casings supported for oscillatory movements; of means "for adjusting one casing toward and from the other casing; a roll carried by each casing for oscillatory movement therewith and rotary movement independently thereof; and means for oscillating said casings and rotating the rolls in intersecting planes relatively vertical to the work.

16. The combination with framework, of a pair of carriers supported thereon for oscillatory movement; spherically-shaped rolls carried thereby for oscillatory movement therewith, and rotary movement independently thereof; a worm-wheel in position to rotate one of said rolls; a worm meshing with said worm-wheel and carrying a gear; a pinion carried by said framework; an intermediate gear loosely mounted on one of said casings; driving mechanism for rotating said pinion, and thereby the rolls; and connecting-rods pivotally connected to said driving means and to said carriers for oscillating said carriers and rolls simultaneously with the rotary movement of said rolls.

17. The combination with framework, of a pair of carrier-casings supported thereby for oscillatory movement one above the other, and each of said casings having a laterallyextending arm; means for adjusting one of said casings toward and from the other casing; rotary rolls carried by said casings for oscillatory movement therewith; a wormwheel carried by one of said casings for movement therewith and in position to rotate one of said rolls; a worm also carried by said casing for movement therewith and in mesh with said worm-wheel; a gear carried by said worm; an intermediate gear mounted on said casing; a pinion-shaft carried by the framework, the pinion thereof meshing with said intermediate gear; a driving crank-shaft; means connecting said driving-shaft with said pinionshaft, thereby to rotate the rolls; and connecting-rods pivotally secured to said casingarms and to said crank-shaft to oscillate said casings, and thereby the rolls, simultaneously with the rotary movement thereof.

18. In a machine of the class specified, the combination with framework embodying a pair of standards, each having a way; of adjustable blocks carried by the ways of said standards; means for adjusting said blocks; removable caps carried, one by each standard; a roll-carrier casing journaled in said caps for oscillatory movement, and having an arm projecting laterally therefrom; a second rollcarrier casing disposed below said first-mentioned casing and journaled for oscillatory movement in said adjustable blocks, and also having an arm projecting laterally therefrom; a spherically-shaped rotary roll carried by each of said casings for oscillatory movement therewith; a worm-wheel carried by one of said casings for rotating the roll carried thereby; a worm also carried by said casing and in mesh with the said worm-wheel; a gear carried by said worm; a pinion-shaft journaled in one of said caps; an intermediate gear loosely mounted on the hub of said upper casing and in engagement with the pinion and Worm-gear; a driving crank-shaft; means connecting said driving crank-shaft with said pinion-shaft, thereby to rotate said rolls, and connecting-rods pivotally secured to said casing-arms and to said crank-shaft, whereby said casings and their rolls are oscillatory simultaneously with the rotary movement of said rolls.

19. In a machine of the class specified, the combination of a pair of spherically-shaped rolls one adjacent to the other, and one adj ustable toward and from the other; and means for oscillating said rolls in one plane and simultaneously with said oscillatory movement rotating said rolls in another plane, both planes being relatively vertical to the work.

20. In a machine of the class specified, the combination of a pair of spherically-shaped rolls disposed in position to receive Work intermediate their working faces and operative to feed such work lengthwise, and simultaneously with such feed thereof to roll the work longitudinally and swage the same laterally; and means for operating said rolls.

21. In a machine of the class specified, the combination of a pair of spherically-shaped rolls disposed in position to receive work intermediate their working faces and operative during the feed of such work lengthwise to longitudinally roll and laterally swage said work; and means for operating said rolls, thereby to effect the simultaneous longitudinal rolling and lateral swaging of the work.

22. In a machine of the class specified, the

combination of a pair of spherically-shaped rolls disposed in position to receive work intermediate their working faces and operative during the feed of such work lengthwise to shift the work laterally to and fro, and longitudinally and laterally roll and swage said work; and means for operating said rolls thereby to efiect the simultaneous longitudinal and lateral rolling and swaging of the work.

23. In a machine of the class specified, the

combination of a set of rolls disposed in position to receive work intermediate their working faces and each operative during the feed of such work in one direction to roll and swage such work in a direction transversely of its feed; and means for operating said rolls.

24:. The combination, with a set of rolls having approximately spherically shaped at a relatively slow speed; and independent means for oscillating both of said rolls in another direction, simultaneously with said rotary movern out, and at a relatively high speed.

FRANCIS H. RICHARDS.

Witnesses:

0. A. WEED, LoUIs F. WHITMAN.

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