US455598A

US455598A - malin

Info

Publication number: US455598A
Authority: US
Publication date: 1891-07-07
Anticipated expiration: 1908-07-07

Description

` (No Model.) a sheets-sheet 1,.

A. F. P. MALIN.

PGR'GING MACHINE;

` No. 455,598. Patented July 7, 1891.

0 IHHHI In IHC' L'rl HNI In Il Il f Hl Il a Z l l I ig' r1 (No Model.) 3 Sh'eetS-Sheet 3..

A P P MALIN PORGING MACHINE.

No. 455,598. Patented July 7, 1891.

In-lre rif/01 r I* wifn'esses:

'mi mayas ruina co., mcv-mm mismnnreu, me.

UNITED STATES PATENT OFFICE.

ALEXANDER FRANZ PAUL MALIN, OF KAPPEL, GERMANY.

FoRGlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 455,598, dated July 7, 1891. Application filed January 9| 1891. Seal No. 377,232. (No model.)

To all wtom it may concern:

Be it known that I, ALEXANDER FRANZ PAUL MALIN, a subject of theKing of Saxony, residing at Kappel, Saxony, German Empire, have invented certain new and useful Improvements in Forging-Machines with Continnous Action, of which the following is a description.

The forging-machine forming the subject of my invention is characterized by the arrangement of new and special devices for ad-v the figures, old and known parts being omitted for the sake of clearness.

In the drawings, Figure 1 represents aside elevation of a machine, partly in section, in which my improvements are embodied. Fig. 2 is a detail elevation, partly in section, of a portion of the machineshown in Fig. l. Figp is a top plan view of Fig. l. Fig. 4 is an end viewof Fig. 3; and Fig. 5 is a detail plan View, partly in section, showing certain features of the machine.

The articles are forged from an endless iron bar ct, which is wound upon a reel A, Figs. l and 3, and which is fed to the forging apparatus proper through a heating furnace or hearth B by means of an advancing or feeding device specially adapted for this purpose.

The advancing or feeding of the iron band a, made white-hot in the furnace or hearth B, is effected by jerks, according to the finishing of the parts which are being forged, by means of two pairs of rollers, one pair of which b b is arranged directly before the entrance, and the other b b directly at the opening for the exit of the iron. The upper rollers b and b of both pairs are pressed upon the lower rollers by weights C orby means of `a spring c, so that when the lower rollers are rotated the iron will befed to the forging device with a pressure which can be reguthe object are made.

lated at will. B y this arrangement of the feeding-rollers any danger of upsetting or stretching of'the hot iron is avoided, as the front rollers b b will feed into the hearth exactly the same lengt-h of iron as will be withdrawn from the hearth by the other pair b b. On the axles of the lower rollers of each pair b and Z1 are arranged ratchet-wheels D and D', Figs. l and 2, and levers d and CZ', Fig. 2, the latter carrying weighted pawls 12612. Both levers d and dare jointed to a pushing-rod E, which is pivotally connected to a bent lever e, which is hinged to the frame at e', and

is provided with a friction-roller e2, resting on a cam F of the forging-shaftf.

As the motion: of the forging mechanismis likewise derived from the shaft f and the forged object is finished during a not entirely accomplished rotation of this shaft, and as, moreover, the forwarding or feeding mechanism is only brought into operation by the cam F slightlyprevious to the accomplishmentof the revolution, it is obvious that the iron rod remains in repose during the entire forging processfand is only advanced again after it is finished. T

TheV forging mechanism operated by the shaft f consists of three parts, viz: first, the roller-disk forging the upper surface of the object; second, the anvil shaping the lower surface of the object, and, third, the side forger consisting of a stationary and a loose plate.

The roller-disk G, Figs. l, 3, and 4, is provided on its circumference with a recess or cut-out part g, for the entrance of a circular saw severing the forged object, and it carries at its periphery seven chilled cast-iron rollers g g2 g3, tbc., steadily increasing in diameter from the first to the last, so that these rollers will finish the upper surface of the obj ect resting `on the anvil.

Perpendicularly underneath the forgingshaft f is arranged the fixed anvil I-l, in which is formed the mold for the under surface of the object. The roller-disk G presses the white-hot iron into the mold of the anvil, forging at the same time the upper surface.v The sides of the object are finished by a special device provided for this purpose.` This device consists of a rigid and a movable plate, in which the molds for the side surfaces of The rigid plate 7L, Fig.

IOD

5, is suitably xed by means of screws and a key, so that one side of the advancing iron bar rests sidewise against it. The loose plate 7L is suitably guided in a bed, and is connected to the lever I, to which a swinging` motion is imparted, and thus, like a hammer, strikes on the iron bar placed between the two plates h and h. To obtain this latter result, the lever I, connected to the loose plate 7i', is hinged 1o to the frame at I', and is provided opposite the plate h with a friction-roller i, arranged in a straight line, with a second roller z" fixed to the frame, Fig. 4, a wedge K being arranged between the two rollers. The wedge K rests l on a blade-spring 7c, secured to the framework and also on a guide, and is operated r upon from above by a second roller-disk L, containing, similarly to the disk G,'rollers ZZ', dac., like the rollers g g2, dac., but not zo provided with the recess or cut-out part g of disk G. With the rotation of the shaft f the forging-disk G acts upon the upper surface of the object, and the under surface of the same is pressed into the recess arranged in 2 5 the anvil I-I. The friction-rollers Z Z', dac., strike at the same time the wedge K and push it down, and as the same is raised immediately after one of the rollersZ has passed, by means of the spring k,thelever I, with the 3o plate h', which is pulled back by the spring n, will thus impart strokes to the iron, and, co-operating with the fixed plate 7i, will finish y the side surfaces of the object. After each stroke of the friction-rollers g g2, dac., one of 5 the rollers Z Z, dac., will strike the wedge K. Thus a side stroke is imparted to the object immediately after each top stroke, and in this manner the object will be uniformly and equally finished after one revolution of the 4o forging-shaftf, without any further assistance being necessary.

After the object is finished in the manner described it is severed from the bar, and this operation is performed just before the bar a isadvanced farther. The severingis effected by a circular saw M, Fig. 4. The saw M is loosely carried on the arm m, rigidly connected to the axle o of the gear-wheel O, and this saw is permanently connected to the 5o small gear-wheel n', engaged with the wheel N, rigidly connected to the bearing of axle o. The axle ois rotated by means of the conical gear-wheels o o2 and the cog-wheel 03, and thus the arm mwill carry the small cog-wheel 5 5 n', with the saw M, around the rigid tooth- Wheel N. Consequently the saw M describes a circle around the axle o, rotating at the same time on its own axle in accordance with the transmission relations of the wheels N 6o and n. At the moment that the saw, which is carried around by the lever m and revolving at the same time 0n its own axle, reaches the plane of rotation of the roller-disk Git will meet there with the recess g. This re- 6 5 cess is made so large that the traveling saw will have crossed the plane of rotation of disk G before the recess g will have passed the way of travel of the saw M. Consequently the saw M'will only strike the bar a, and while continuing its travel it will sever the finished object from the bar. 'lhe finished Objectis now ejected by any of the known devices, and the feeding apparatus will advance the hot iron bar for a'suitable length under the forging mechanism.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is

l. In a forging apparatus, the combination, with a reel carrying the iron bar or band from which the articles are to be forged, and aheating-furnace, of a feeding mechanism intermittently operating to draw said bar or band through the furnace, a main driving-shaft provided with a disk equipped with forgingtools to shape the upper surface of the article being forged, an anvil located beneath said disk and having a suitable conformation to give shape. to the under surface of the article being forged, a second disk likewise mounted on the main driving-shaft, a pair of plates arranged in a horizontal plane at opposite sides of the anvil and constructed to give shape to the sides of the article being forged, and means coacting with the lastmentioned disk and with one of said plates to cause said plate to produce at suitable intervals hammer-like blows upon the article being forged, substantially as set forth.

v2. In a forging apparatus, the combination,V with a reel carrying the iron bar or band from which the articles are to be forged, and a heating-furnace, of a feeding mechanism intermittently operating to draw said bar or band through the furnace, a main driving-shaft provided with a disk equipped with forgingtools to give shape to the upper surface of the article being forged and having a portion of its circumferential face cut away to permit the entrauceof a severing device, au anvil located beneath-said disk and having a suitable conformation to give shape to the under surface of the article being forged, a second disk likewise mounted on the main drivingshaft, a pair of plates arranged in a horizontal plane at opposite sides of the anvil and constructed to give shape to the sides of the article being forged, means coast-ing with the last-mentioned disk and with one of said plates to cause said plate to produce at suitable intervals hammer-like blows upon the article being forged, and a saw in gear with the main driving-shaft and adapted to enter at appropriate intervals the cut-out portion of the first-mentioned disk to sever the finished article from the bar or band of iron, substantially as set forth.

3. The combination, with the furnace and the main driving-shaft of the forging apparatus, of a feeding mechanism for advancing the bar or band from which the articles are to be forged, consisting of two pairs of rollers, one pair located in front and the other pair at the rear of the furnace and coupled or IOO IIO

Vvided with a cam, as F, of two pairs of rollers for feeding the band or bar of iron from which Vco-opperating with the cam on the main the articles are to be forged, weights or springs for exerting a regulated pressure of the upper rollers on the lower rollers, ratchet-wheels carried by the axles of the lower rollers, levers, as d, also affixed at one end to said axles and carrying at their opposite ends weighted pawls coacting withv said ratchet-wheels, arod, as E, jointed to levers CZ, and bent Vlever e, hinged to the frame of the apparatus and connected to rod E and provided with a friction-roller shaft, substantially as set forth.

5.' The combination, with the main drivingshaft F of the forging apparatus and means forfeeding the bar or band from which the articles arepto be forged, of a disk, as L,carry ing a series of rollers, as shown, a stationary anvil furnishing a support for the article being forged, a :fixed plate, as h, anda suitablyguided movable plate, as h', said plates supportedvin a horizontal plane and formed to give shape'to the sides of the article being forged, a swinginglever, as I, connected to said movable plate, friction -rollers, as i i', and a wedge, as K, with which the rollers in the periphery of disk L co-operate, whereby hammer-like blows are delivered onto the article being forged, substantially as set forth.

6. The combination, with the main drivingshaft F of the forging apparatus and means for intermittently feeding the band or bar from which the articles are to be forged, of a disk, as'G, mounted on shaft' F and provided with forging devicesin its periphery, astationary anvil located beneath disk `G and adapted to forge the under surface of the article and co-operating with disk G, a second disk L, also mounted on shaft F, and carrying a series of v rollers in its periphery, and side- V forging mechanism consisting of a fixed and a movable plate, the latter carried bya swinging lever, with which disk L co-operates to impart the required side blows to the articles being forged immediatelyfollowing the blows effected by the action of disk G, substantially as set forth.

Y7. The combination, with the main drivingshaft F of `the forging apparatus and means for intermittently feeding the band or'bar from which the articles are to be forged, of a forging-disk, as G, provided with a cut-out portion, and a circular saw mounted inv proximity to the disk G and in gear with the main driving-shaft to cause it to move bodily Within a circumscribed circle,while at the same time adapted to constantly'rotate on its own axis, whereby each time the forging iseffected said saw crosses the plane of rotation of said forging-disk and'severs the completed articlefrom the band or bar of iron without loss of material `or unshaping of the object, substantially as setforth.r v

8. The combination, with main shaft F, provided with forging disk G, having ai cutout portion, as explained, of circular saw IVI, loosely carriedon arm m, which lattery is rigidly connected to the axle of gear-wheel O, small gear n', ixedly connectedvto said-saw, toothed wheel N, fixed to the bearing of gearwheel O and co-operating with small gear n' and gearing, such as O O2 O3, substantially as set forth. p p

In witness whereof I have hereunto set my hand in presence of two Witnesses.

ALEXANDER FRANZ PAUL llIALIN.