US1156446A

US1156446A - Casting-machine.

Info

Publication number: US1156446A
Application number: US81796314A
Authority: US
Inventors: Roger Taylor; Luke A Miley
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-02-11
Filing date: 1914-02-11
Publication date: 1915-10-12
Anticipated expiration: 1932-10-12

Description

, Pp, YLOH L L. MlLEY.

`CSHJG MACHINE.

mwucmmn FILED ma. 11, 1914.

Llg.; patented oct. 12, 1915.

4 SHEETS-SHEET l.

M 73 @Hor/mm3 R. TAYLOR'A L. A. MILEY.

`CASTING MACHINE.

APPLICATION FILED FEB.11,1914.

Mmm@ A paiemd-ot-12-1-915.

4 SHEETSf-SHEET 2. l

` @Hmong R. TAYLOR al L. A. MILE'Y. y

CASTING MACHINE.

APPucATmN FILED FEB.11, |914.

ma@ 4%. patented 0015.121915.

4 SHEETS-SHEET 3- 4 yer aie R. TAYLOR @L L. Px. NHLEY.

CASTING MACHINE.

Mmlcmmn FILED FEB. 11. 1914.

Patented Oct. l2, X915.

4 SHEETS-SHEET 4.

ull

@Hoz/new mechanism controllingl the motion of the;

ai ib.

ROGER TAYLOR AND LUKE A. MILEY, OF SELBY, CALIFORNIA.

CASTING-MACHINE.

Liscate.

Specification of Letters Patent. Patented Oct. 12, 1915.

Application filed February ,11, 1914. Serial No. 817,963.

o ispoured into suitable molds, which follow each other successively, and cools therein and is dumped therefrom "when suiiiciently Icooilded.; i I

The objects of ourinvention are tov .pro-v vide means vfor `filling the -molds, when they arrive at a 4pre'determined place, with'th'e molten substance without stopping their motion; `to reduce the waste-'of metal from spilling; for dumping the ingots from A.the molds at a predetermined .place; for im-y `parting a reciprocating motion to the pouring spoon; and for tipping the pouring spoon to control the How of the molten subev stance therefrom in. accordance with thel direction of its motion. lVe attain these and other objects by the devices, mechanisms and arrangements illustrated in the accompanying drawings, vin whichv Figure l is a general plan of the machine; Fig. 2 is aplan o f that portion thereof which receives and pours the molten substance; Fig. 3 Yisa side elevationl of-'said part showing the molten substance. ,being poured; Fig. 4 is a sideelevation of portion of the cam ring extending around the.

machine, showing theposition ofthe roller when the pouring spoon is tipped toponr the molten substance therefrom; Figxis a similar View thereof showing the position of the roller when .the pouring spoon is tipped up so that it cannot pour the molten 4 substance; Fig. 6 is aviewl similarto Fig. 3 showing the pouring spoon tipped up; Fig. is a-'perspecti-veA view ofthe part of the pouring spoon, the parts being in the positions occupied tlierebywhen .the spoon'ha's almost reached the end vof its longitudinal motion; Fig. 8 isa transverse section of the portion ofthe machine showing especially the mechanism for dumping the ingot onto a conveyer; -and Fig. '9 `is a front View thereof, showing'the conveyerp'aitly `in section.

Similar numerals of reference refer .to

similar parts throughout the several views.

This machine consists of a large ringl shaped frame,lcarrying va suitable number-- lof similar ingot molds, which is slowly rotatedpast the point from which the molten substance is received. vThis vring-shaped frame is made of two inverted rails 1,'suit- 'p ably lbent intoltwo 'concentric circles, said rails lying ina horizontal plane'and be-.. ing fastened togetherby means of aplu- -ralitv of, spreaders 2, thus forming a rigid revoluble body.; This frame is supported at suitable intervals on wheels 3,'- having axes arranged radially from the center" of the frame, saidwheels being mounted on founbe easily' rotated.

around. the .outer rail ring lof the framel A Y-shaped ring `5'iisv secured entirely-f f da-tionpiers 4', so that the said frame 4may and extends'v outward. therefrom 5 and 'o-is l adaptedto receive'the drivingcable-G whereby the ringis rotated. This cablejis '.drivenpreferably by .an electric'v motor, in-

4-dicated at 7, which drives a suitable drum -Son whiclitlie cable 'is'vvouridl The cabler 6 is endless and .extends from around thesol drum engagingthe Y-ring '5 and passing entirely ,aroundv the machine, and 4*also passing, over --asuitable tightening mechanism as indicated in Fig. l, wherebythe'tension lins'aid cable'is regulated and kept lconstant'.

At vsuitable 'intervals along f the framey formed' by the'circular railsfare mounted .pairs of bearing blocks 9,' arranged 'radially' -and adaptedto receive the trunnions. 10 o'f the ingot molds 1l'. The moldsinto :which i the vmolten,copper, or other substance', vis

poured, are of any v desired size and. shape and are `provided -with a vpair oftrunnions 1 0, whose axis is slightly "forward ofthe' central aXis .of the mold."v Lugs 12 arealso secured tol therear of said molds'll, .so

that said molds will be supported partly by'v the trunnions l0 Ivand'p'aitly by the lugs 12, which rest on the rails 1 ofthe circular frame; ...The outer: tru'nnion 10 of each vof the molds extends a short distance out from the outer rail l and has a* depending lever 8 and 9.'- This lever 13 has a roller'lll 13 'mounted thereonas shown in Figs. 3,5105

mounted on one side of its free end, the roller being adapted to be engaged by the trip bars whereby the inold is turned on its bearings to dump the ingot and is returned to its normal position again.

The first trip bar-|15 is positioned in line with the roller 14 on the lever 18 and eX- tends upward on a curved line to a point slightly below the position of the roller 14 when the mold 11 is overturned. As each mold approaches the'said trip bar `15 the roller thereof is at its lowermost position, but as soon as the roller 14 engages the trip bar 15 the vforward motion of the mold retards the roller and forces ,it upward on the trip bar, turning the lever 13 and the trimnion and tipping the mold in the frame, and this action continues until the mold is turned so that it's'center of gravity is forward of the trunnions, and then the weight of the mold and of the ingot therein will `continue the turning motion so that the mold isturned completely sover.

12, secured to the mold will violently en-.

The lugs gage the 'rails 1,v and the shock incident to the sudden stopping of this rotary motion will dislodge the ingot vfrom the mold and cause it to fall onto any suitable receiving or conveying de,vice,such as is indicated at 16 in' Figs. 8 and 9,

rlhe second trip bar is positioned a short distance beyond the said irst trip bar and is-of a slightly different form, having its main shank or standard 17 mounted outside of the line of the rollers 14, but having its upper part 18 off-set therefrom into said line so that this portion is adapted to engage the roller 14, when the mold is upside down and the roller is in its highestvposition, and the forward motion ofthe mold retards the roller 14 and causes it to travel downward on'the off-set portion 18 of the trip bar, until the mold is turned far enough to assume its normal position under the action of gravity, the roller 14 then.passes beside the shank 17 of the trip bar without engaging it asv shown in Fig. V8; thus the mold is restored to position toreceive a new charge of molten substance. The trip bar 15 is positioned a suitable distance from the pour? ing station to allow the substance to cool the desired amount and the trip b ar 18 is positioned between the trip bar 15 and the pouring station in the direction of motion of the molds. Each mold, as it passes the first trip bar 15, is overturned and dumps its ingot and each mold is then restored to its normal position again.

In view of the fact that the circular frame supportingthe molds 11, is continuously rotating, it is evident that, in order to fill the molds without unnecessary waste of metal, it is necessary to provide a movable device which will travel witha mold while it is 'filling it and which will not pour out any of the molten substance in the space between two molds no matter how close or far apart they may be positioned. But in view 'of the fact that the molten substance is poured from a stationary receptacle 19, such as a converter for instance, it is evident that this pouring device must inove .within a very limited area. In order to accomplish this we provide a reciprocating pouring spoon 4which is of such transverse dimensions at its bowl or receiving end 2O that, whatever position it may be in, the said bowl remains vertically below the spout 21 of the receptacle 19; and whose pouring l-ip to dip its lip 22 down. Thetrunnion's are mounted in bearings which formlpart of the small car 24 havingfour suitable double-fianged'wheelsl 25; the said car being mounted on a short section of track formed by two parallel rails 26. The car is free to move on the track 26eXcept'that its forward motion is resisted by the .[weight 27 secured by a cable 28 to the car-*124. This weight hangsA over a iiXed pulley. 29 and is preferably submerged in a liquid which is contained in a vessel 30, slightly llarger thanl the weight 27, so tha-t as the car 24 is moved forward, the weight is raised and the liquid which was above it passes around it to a position in the bottom of the vessel, and as the car is releasedfrom its forward propelling mechanism the weight then acts thereon and draws it back to its starting position; but since the weight nearly fits the vessel 30, its action is retarded and the return motion lio is substantially constant and there will bev practically'no shock either at the beginning lor the end of the motion.

A' number of lugs 31 are fastened to the inner rail 1 of the frame, one said lug being provided in suitable position adjacent to each of said molds 11 .mounted in the frame. A vertically movable latch 32 is mounted on the car 24, which" supports the lpouring spoon, in lsuch position as to be engaged by any of the said lugs. 31. A cam plate 33 is fiXedly secured to the stationary frame atl a suitable point, and is positioned so as to be engaged by thelatch 32 and is inclined so as to raise the latch when it is thus engaged, and when said latch is thus raised it becomes disengaged from the lug 31 on the rotating frame. 24 is at the beginning of its travel` the latch It is evident then that, if the car -therefrom and the car 2i is freed from the rotating' frame and is returned under the action ot the weight 27 to its starting point where'it again becomes engaged by the'next lug 31 on the frame and the next mold ll isv therefore filled.

One of ,the trunnions 23 of the .pouring spoon is provided with a. lever 34 extending toward the rotating frame and having a roller 35 mounted on its end. A cam ring 3G is secured to the inner rail 1 of the rotating frame and is provided, in a.suitable osition adjacent to each of the molds 11iv1th a slight depressionifor notch 37 having suitably inclined sides. The roller 35 on the end of the lever 34 engages the cam ring ,36 and the said` parts are arranged in such a way' that when the pouring spoon is moving for.` ward with lthe mold the roller 35, on the lever 34 which controls the dip of the pouring spoon, is in one of the notches .3T in the ca'm ring 36 so that the lip 22 ofthe pouring v spoon is depressed and the moltensubstance allowed to pour therefrom into the said mold. And, since the spoon travels with the mold, the roller 35 will remain stationary in the notch 37 until the car 24 has been released from the rotating frame Aas defes scribed, when the roller 35 will move backward relatively to the rotating frame and will leave-the notch 37 and ride on theele-v vated part of the cam `ring 36 and, as soon as it leaves the notch, it raises the end ofthe lever and turns the trunnions23 of the pouring spoon thus-raising the lip 22 there-v 'of and preventing the molten I substance from being poured therefrom .when the car and the spoon are returned into position to pour into the next mold. v

The position of the lug 31 relativelyto thenotchi? `will correspond with the position ofthe latchv32 relatively to the roller 35, so that when the. lug and'l'atch `engage the roller and `notch will'alsobe in engagement. The positions-of each lug Bland notch 32 relatively' to the corresponding 'mold 1l must be substantially constant throughout the machine. Thedistan'ce be.

- tween centers of .adjacentmolds and the speed of rotation ofthe frame should be at least .suel'il as to give'time for the'iilling of one moldand the return of the pouring spoon-to ,the starting point. The size of y lthe mold,the speed of rotation of the frame',

and the length of travelof the pouring spoon should. be such as toj'allovv. themold to oe lled with the liquid. The size of the frame and the speed of rotation thereof should be such as to give time for the molten substance to solidify sufficiently 'between the pouring station and the dumping station.

Having described ourinvention, what we claim is l. In a casting machine, the combination with a moving frame; of a mold mounted thereon; a lug extending fronrthe .frame and moving therewith; a pouring spoon movably mounted on tracks substantially parallel with the direction of motion of the mold therepa'st; means acting on the pouring spoon to actuate it in the opposite direction to the motion of the mold -therepast; a

latch connected to the pouring spoon and normally lying inthe path of motion of said face; a pouring spoon movably mounted on Vtracks .substantially parallel withthe direction of motion of the mold therepast; a lcver mounted on the pouring spoon whereby `it may be tipped, s aid lever engaging said cam piece whereby when the lever is in engagement with theldepressed portion there;`

of the pouring spoon is tipped down to pour and when it is 1n engagement with any other l.portion thereof it is'tipped up to hold the molten` substance therein; means acting on the pouring spoon to actuate it in the opposite direction'to the motion of the mold therepast; a latch 4connected'to 'the pouring l spoon and normally lying in the path of said lu g, whereby when the latchis engaged bythe lug the pouring spoon is movedv with the mold, said latch being so positioned as to be engaged by the lug when the lever is in engagement with the cam.depression'; and means for releasing the latch from engage- `ment with the lug.

'with a rotating ring-'shaped frame; a mold mounted thereon; a lug extending from the frame adjacent to the mold; a ring-shaped cam plate secured to the frame and having adepression in its voperative surface adjacent to the mold; a vpouring spoon mounted adjacent 'the frame and adapted to be `3. `In aycasting machine, vthe combination.

lOl

moved and tipped; a latch connected to the A pouringspoon' when said parts are not in .l,-f..e ngagement; and meanssecured tothe Vpour- 13o ing spoon and fengaging'said cam plate and so positioned as to engage the depression therein only When the lug is in engagement with said latch whereby the pouring spoon is tipped down to pour when the lug is in engagementA with the latch and is tipped up to hold the molten. substance when said parts are not in engagement.

4. In a casting machine, tliecoinbination with a moving frame; of a mold mounted thereon on horizontal pivots; `a lever secured to said mold and adapted to' turn it on its pivots;v and a pair of stationary trip bars, positioned successively in the path ofinotion of'said lever, the first trip bar being adapted to engage the lever as it moves therepastand thereby tocause said mold to `be overturned, and the second trip bar being adapted to engage the lever when in its 'reversed position as it moves therepast and thereby to cause said mold to be returned to one side of the center of gravi-ty ofsaid mold; and lugs secured to said mold, and positioned thereon on the opposite side of the center or' gravity from 'said pivots, and

restino' on said frame. Whereb the rotar motion of the mold on its pivotsis limited and the vmoldis held in4 either of its positions.

" ROGER TAYLOR.

L. A. MILEY.

Witnesses *EMIL PETERSEN, W. D. LINDSAY.`