US1108693A - Casting-machine. - Google Patents

Description

J. BURKHARDT. CASTING MACHINE. APPLICATION FILED DEO.17,1910.

Patented Aug. 25, 1914.

' 5 SHEETS-SHEEY lv \NVENTUR g/yv 3. BURKHARDT. CASTING MACHINE. APPLICATION FILED DEO.17, 1910.

Patented Aug. 25,-191 L 5 SHEETSSHEET 2.

x INVENTOR 2; ATTO NEY5 I J glkiim fb/ 3. BURKHARDT. CASTING MACHINE. APYLIGATLUN FILED DBU.1'I.1910. L

Patemed Aug. 25, 1914 5 SHEETS SHEET 3.

9 I /1 4 INVENTOR IflQMAVflMM ATTORNEYS 3. BURKHARDT. CASTING MACHINE. urmonum FILED 950.17, 1010.

Patented Aug. 25, 191% 5 SHEETS-SHEET 4.

K12, ATTORNEYS,

' NITED era-ar as PATENT. orr es.

JOHN sunxnaan'r, on NEW YORK, N. Y,

' CASTING-MACHINE.

- Specification 81 Letters Patent. PatentedAug, 25, 1914;.

application filed. December 17, 1910. Serial Il'o. 597,744.

'b all whom it may concern:

Be it known that I, JOHN BUnKHAnDT, a citizen of the United States, and a resident of the city, county, and State of New York,

have invented certain new and useful Im provemefnts in Casting-Machines, of which the following is aspecification. I

My invention relates to casting machines. It has for its object to provide a machine which will automatically, quickly and cheaply cast articles of any desired shapes or sizes or of varying or irregular shapes OP'WhICh .Wlll be adapted to cast a great variety of diflerent articles at the same V vent-ion Figure 1 is a side elevation of such forni'c-f my improved device. Fig. 2 is a plan;v Fig. 3' is a vertica'lsection taken be-'.

separating or time; alsolto pirov ide means formore easily reaking up the finished cast-' inginto-its constituent cast parts; and-also means for-reducing the waste and for makin portions of waste into useful articles in the accompanyingdrawings, forming pagrhof this fspecificatioml have shown my improvement in its preferred form;

[Referring-to this embodiment of my intween the chains showing in elevation one seriesflof the movable mold blocks with the funnels, gate waysandother parts. Fig. 4.: is. a horiz 'ontalsection taken on the lines 4:,4 of Fig; 1.- Fig. 5 is a detail of the delivery of a cast article. Figs. 6, 7 and8 illustrate an elevation of my improvement in which movable plungers are employedto occupy part ofihe molding space during'the casting operation, Fig. 6 showing a vertical cross-section through. the chains and other parts of the upper. part of the apparatus, Fig. being a horizontal section on the lines 7,.7 ofgE ig. 6, ig. 8 being a detail of the plungerand its cam. Figs. 9, 10 and 1 1; illustrateanother modification for preventing waste orifor making use ofthe waste parts of the castings, Fig. 9 being a vertical elevation showing the gate-way, funnel and the face of one series of molding blocks, Fig. 10 being a top view of the mold of Fig.0, omitting certain parts, and Fig. 11

being a vertical vcrosssection. Figs. 12 and 33 are detailsof av modification;

l xi i my'improvement I provide a plurality (if series of movable mold blocks adapted to be broutghttogether to form molding spaces of any esiiedgshape and size. provided with blocks. any desired shape or size and maybe of suitable 'gate ways for leading the metal to the moldin spaces and adapted to be s'eparated togdischar e the east articles." The mold blocks may e of any suitable shape or construction-and may be connected together infamy suitable inan'ner. In the ,machine shown in, the drawings they consist'of end-' less chains providedwith mold link blocks- I chains in any suitable mannerand the linksare secured together'in the usual manner, 'so as to-engage the teeth of the sprocket wheels 4l. Each'molding block extends across the whole width of the chain from one sprocket wheel toanother as shown in Fig. ,2.- The various mold blocks are pro- -vided with any suitable shaped spaces and these spaces form one half or part of complete molding spaces, the other part being of course supplied by the opposite molding These molding spaces may bfi'nfif varying or irregular shape as illustratedin Fig, 3, where are shown a number of. differ cut-molding s aces 7 of difierent and irregular shapes an sizes adapted to makedifierent articles.

Suitable gateways arepi'ovided foisupplying metal to .the molding spaces= practice I prefer to'juse main gate-ways and subgate-ways for leading the metal to the various molding spaces, and in practice. .I prefer to use two main. gate-ways with subgateways leading from vveachfas shown in 8,-8 are two funnelsiorsupplying metal, each leading to a ma'uigate-way 9. Each gate way 9' is provided with: subgateqvays 10 leading to the various molding spaces 7.

It will of course be understood that as the opposing mold blocks of the two.) opposite series of chains 3' are brought together, as-

the chains are moved by the sprocket wheels (in the direction of the arrows shown in Fig. l), as illustratednear'thetop of Fig.

1, the various molding;1spaces ;.7, the main articles together with the waste matter in the gate-ways will be discharged as illus-' There a cast article 11 is trated in Fig. shown in the act of dropplng out.

By means of my improvement articles of different shape and size and of any irreguvide numerous sub-gateways .tWo or more for each molding space. This size may be cast and a great lar shape and be cast at the same variety of articles may time. I

By my improvement I am enabled to pro 3 preferably enables the molding space to be quickly and readily filled. For this. purpose also I prefor to employ two or more main gate-ways each provided with its own funnel, as shown By proper sub-gatc-ways these in Fig. 3.

main gateways cooperate with one another.

The chains may be driven by any suitable means. Those shown consist of sprocket wheels 12 and 13 meshing 'with each other andlatiording' motion .from one chain to the other chain. A shaft .5 upon which gear 13 is mounted may be driven from any source of power (not shown).

F or the purpose of making articles of a different and larger size or irregular shape it is sometimes preferable to construct a main gate-way so that it could shift in its course relatively to the line of movement of the chains or blocks instead of being always parallel. Thus while the gateway 9 Mt e right of Fig. 3 isvshown as vertical, or in ither words is parallel to the line of move ment of the chains, gateway 9 is shown as shitting relatively to the line of movement of the chains at diilleront times. Thus in the upper part of Fig. 3 the main gate-way 9 is to the left as it is at the bottom, but at the intermediate points it is shifted to the right. This is to enable the placing of the largercctangular space 7 shown inside the curve of the main gate-way as appearing on Fig. 3. It is, of course, necessary with a shifting main gateway to also shift the horizontal position of its funnel 8. Accordingly the left hand funnel 8 is shown as a movable one adapted to shittits position horizontally or across the machine, viewed in Fig. 3, to correspond with the shifting of the main gateway. Any suitable means may be employed for shifting the funnel. Those which I employ are as follows: The left-hand funnel 8 is carried or supported by two rings 15,16 having collars 17 and 18 respectively. Col- 17, for it will be understood that there is one on each side of ring15, loosely encircle a cross rod iii-fixed in side supports 20 the lefthand main and 21 of the machine. -,T(l"lthis same rod 19 the right hand funnel '8 is secured by a ring 22 and a collar 23 is fastened to the ring and to the rod. Collar 18 of ring 16 of the movable or left hand funnel 8 is made fast by a collar 24 to a shifting rod 25' mounted in cylindrical openings in the supports '20 and 2.1 and free to move horizontally in them. lt will be understood that. there are two rods 19, one on each side of the funnel and but one red 25. Spring 26 is secured at one,end to ring 16 and at the otherend to sup iort 21. It tends to pull the movable or lett hand funnel S to the left as viewed in Fig. The funnel is pulled to the right by means of cum surfaces 27 projecting from the right hand end of certain oi the blocks 1, as shown in Fig. 3L An arm 28 encircles and is fast at its upper end 29 to rod 25 and at its lower end has a wheel 30 pressing against the right ends of the blocks 1. The cams are shaped and propm-tioned' of course so as to move the tunnel 8 to the right or permit it to be pulled by spring 26 to the left so as to'conform with the shifting of its main gateway 9.

In Figs." (l -8 I have shown a plunger adapted to be moved into an. occupied part of a molding space during the casting operation of the blocks, with suitable cams for moving it into and out of operation. This enables the shape of a molding space to be altered to suit circumstances and permits of the use of larger molding spaces.

The plungers 'inay be of any desired size and shape and may be moved into and out of position in the molding space by any suitable means. As shown in Figs. 68 31 are plungersadapted to bemoved into the molding spaces '7 by means of arms 32 provided at their ends with wheels 33 running in cam grooves 3i. These cam grooves are shaped so as to insert the plunger and withdraw it at the proper times. Fig. 6 shows the upper plunger 31 in position in its molding space and shows the lower plunger 81 withdrawn from its motding space. By thescmeans castings of a greater variety of shape may be made thanwould be otherwise possible, and castings with recesses on an i or every side.

in order to obviate much as possible the waste of metal on account of the main and sub-gateways I preferably provide means for forming the metal remaining in the main gateway or gate-ways at the time of (lelivery into useful articles. In Figs. 9-11 I have illustrated my preferred devices forthis purpose. As there shown I provide 9 and projecting upward through the center of tunnel 8 a core 35 which may be of sand or any material suitable forv that purpose. For this purpose I provide the tunnel 8 with in thc ccnler of the main gateway.

ing such restricted portion 40. 4A fastened to.

an inner cylindrical sleeve 361st its upper part to form a: guide for the core. 37-457 are properly shaped .Wheels suitably'supported (supports not shown) for also guiding the core. -38-38 are knobs or projeo tions from the opposing faces of the mold ing-blocks 1 to act, as guides for the core. Such knobs are provided at suitable distances apart, only one set of them being shown in Fig. 11. In this Way the metal filling,- the gate-Way 9 is formed into a useful article, namely, a pipe instead of being merely Wastematerial that would have to be melted and used over again.

By making the, knobs or projections 38 continuous so as to form .a complete circle aroundcore 85, the pipe will be divided into sections of certain prescribed lengths or if the projections do not quite touch the core there will be restricted parts which can be easily broken through. Similarly I preler at certain prescribed distances apart to restrict the main gate-ways 9-9, even where a core is not used, by an inner circular projection .upon'the blocks in order to provide that the'casting will be thinner at such points and can be more readily broken.

in Fig. 3 I have illustrated such a restriction at and in Fig-121 have shown such a continuous ring or c rcular pro ectionland 111 Fig. 13 I-haveshovvn a portion ofthe Wastefrom main 'ate-wa 9- after deliver hat ib-i1, secured to brackets the side frames of the machine, act as guides for pi-( jections,t-242 extendingpfrom the edges of the molding blocks, thus keeping the molding blocks in proper alincrnent and position.

4-3 is a backing of asbestos which I prefer-- v ably employ on the mold-blocks for eo'nservv ing heat.

The term metal as usedin the .speci Election and claims is used broadly to indionto any suitable metallic or other substance in fluid or in semi-fluid condition at the time of casting and adapted to set and adapted for use in a casting machine. My invention is, however, peculiarly applicable to making castings vfrom molten iron al-- though not limited'to this material.

In the machine-shown the line of movegate-ways and into the molding, spaces. It

will be understood however that vwith any ot er suitable means or method for forcing the metal into such spaces in a direction other than vertical, the line oat movement of the molding blocks and the line of the main gate-ways need notbe vertical.

'Many changes and modifications in or from the particular form of mechanism shown in the drawings antimony-departures therefrom may be made Without departing from my invention.

It will, of course, be understood that in first beginning operations with, my improved casting machine,-it Will be necessary totemporarilyplug up the bottom of each main gatewayuntilthe gateway and the sub-gateways and molding spaces above it have been filled. This can be done by. any suitable temporary plug. After the machine has once been in'operation and is stopped-atmthe close of the day or for any reason, the place of the temporary plug can-be filled by leaving it-he machi'ne soithat a QRSti-llglS only partly discharged, such asthe position/of the casting-ll; shown in F ig.'5. ThiS Will act as a plug until the machine is started again. Upon starting the ma'chine,.either' in the first or any subsequent operation,'the temporary plug or the casting charged. in the usual Way;

In practice, 1 prefer to vsmarrange the molding spaces and thegatewaysand subgateways so that the cubical. contents of 11 will een.

them all yvillbeapproximately the fisame in any given unit of length of the molds; in order to obtain as even a, fiOW of'mete ..=:a

possible. This Will tend to obviate-331115 overflow of metal. at any particular; Should such an overflow, however. occult? any reasoinit may .he pro'videdafor in=sn for suitable. way, as for example, VIi1eans-hf l. The combination of a plurality of series of movable mold-blocks adapted to be brought together to form anplinality vofmolding spaces of any desired sizes-and shapes, a plurality of 'main gate-ways for the passage of thevmetal, and a plxralityo-f sub-gateways for leading the tal from the main gate-ways to the moldii g spaces,

the difi'erent. series of-mold-blocks adaptedto be-sepa'rated'to discharge the cast articles, and a funnel for each main gate-Way lor supplying metal thereto.

I QR-The combination of a plurality of chains provided with mold link blocks adapted-to be brought-and moved together .to form a plurality ofmolding spaces often) desired sizes and shapes,a main gate-Way tor the passage of themetal shifting in its course from the line of movement of the chains, and sub-gateways for-leading the metal. from the main gate-way teithe molding' spaces, the chains andmold link-blocks adapted in their further increment to be separated to discharge the cast articles.

. The combination oi a plurality oi chains provided 'with mold linlcolocks adapted to be brought and moved together between them hollow spaces adapted to conto form a plurality of molding spaces of any desired sizes and shapes, a main gate-way for the'passage of themetal shifting in its course from the line of movement of the chains, and sub-gate-Waysfor leading the metal from the main gate-Way to the molding spaces, the chains and mold link-blocks adapted in their further movement to be separated to discharge the cast articles, and a movable funnel for supplying metal to the main gate-way adapted to shift its position to correspond with the shifting of the main ate-way. A

4. he combination of a plurality of chains provided with mold link-blocks adapted to be brought and moved together to form aplurality t' molding spaces of any desired sizes and shapes, a plurality of main gate-ways for the passage of the metal, one or more of said gate-Ways shifting in its course from the line of movement of the chains, a plurality of sub-gate-Ways for lead ing the metal from the main gate-ways to the molding spaces, the chains and mold link-blocks adapted in their further movement to be separated to discharge the cast articles, a funnel foreach main gate-way for supplying metal thereto and means for shifting the )osition of a tunnel to correspond with tie shifting of its gate-Way.

5. In a molding machine the combination with a plurality of series of movable moldblocks adapted to be brought together to cause the corresponding mold-blocks in the diti'erent series to form between them a hollow space adapted to constitute a molding space and to be separated to discharge the cast article, of a plunger of desiredsize and shape adapted to be moved into and to occupy part of the molding space during the casting operation and to be withdrawn at or prior to the separation of the blocks.

6. In a molding machine the coithbination with a plurality of series of movable moldblocks adapted to be brought together to cause the corresponding mold-blocks in. the different series to form between them a hollow space adapted to constitute a molding space and to be separated to discharge the cast article, of a plunger of desired size and shape adapted to be moved into and to occupy part of the molding space during the casting operation and to be withdrawn at or prior to the separation of the blocks, and a cam for moving the plunger into and out of position in the molding space at appropriate times.

7. The combination of a plurality of series of movable mold-blocks adapted to be brought together to cause the corresponding mold-blocks in the different series to form stitute a molding space and a gate-way for leading the metal to the molding space provided with a restricted portion to en-l able the said gate-way portion of the cast ing, when removed, to be more readily broken. I

8. I The combination of a plurality of series of movable mold-blocks adapted to L be brought together to cause the corresponding mold-blocks in the different series to fornr between them hollow spaces adapted to constitute a molding space, a main gate-way for the assagetoi the metal provided with a restricted portion to enable the said gateway portion of the casting, when removed, to be more readilybroken, and a sub-gateway for leading the metal from the main gate-way to the molding space, the diil'erent series of mold-blocks'adapted to be sepa rated to discharge the cast articles.

9. The combinationof a plurality of series of movable mold-blocks adapted to be brought together to form a molding space and a gate-way for leading the metal to the molding space, and a core for the gate-way adapted to form the metal finally remaining in thegate-wav into a useful article.

10. The combination of a pluralityof series of movable mold-blocks adapted to be brought together to form a plurality of molding spaces of any desired" sizes and shapes and a gate-Way for leading the metal to'each molding space, the different, series of mold-blocks adapted to be separated to discharge the cast articles, and a core for the main gate-way adapted to formthe metal finally remaining in the gate-way into a useful article.

11. The combination of a plurality of series of moi-able mold-blocks, adapted to be brought together to form molding spaces and to be separated to discharge molded or cast articles, provided with molding spaces for different shaped articles, a main gateway for the passage ofthe metal shifting in its course from the linc of movement of the mold-blocks, and sub-gate-ways for leading the metal from the main gate-way to the molding spaces. I

12. The combination of a plurality of series of movable mold-blocks, adapted to be brought together to form molding spaces and to be separated to discharge molded or cast articles, provided with molding spaces for different shaped articles, a main-gateway for the passage of the metal shifting in its course'from the line of movement oi the mold-blocks, and sub-gate-ways for leading the metal. from the main gate-Way to the molding spaces, and a movable funnel for supplying metal to the shifting main gateway adapted to shift its position to correspond with the shifting position of the gate- Way. I 13. In a molding machine, the combina tion of a plurality of series of movable moldblocks adapted to be brou ht together to form a gate-way, the molds eing so shaped and arranged as to cause the gate-way to name to this specification, in the presence of shiift its position in the molds, and a funnel two subscribing witnesses.

a apted to shift or move with the shiftin 7 gate-Way so as to be in position to fnrnis JOHN BL RKHARDI' 5' metal to the gate-way irrespective of its W'itnesses:

position in the molds. Eowm SEGER,

In testimony whereof, I have signed my JOHN O. GEMPLEK.

Images