US1700341A

US1700341A - Casting machine

Info

Publication number: US1700341A
Authority: US
Publication date: 1929-01-29
Anticipated expiration: 1946-01-29

Description

Jan. 29, 1929.

I. D. TRAVIS CASTING MACHINE Filed June 17, 1927 Z Sheets-Sheet Jan. '29, 19 29.

I. D. TRAVIS CASTING momma Filed June 17, v 1927 2 Sheets-Sheet 2 gwuwntot mm mu;

ET STATES Patented Jan.

IRA D. TRAVIS, OF SALT LAKE CITY, UTAH.

- CASTING MACHINE.

Application filed June 17,

My invention relates to casting machines and has for its object to provide a new and eiicient casting machine which can be used in core casting as well as other types.

A further object is to provide a casting machine of two separable chills, having an eliminator in one chill which will force out the finished casting after the chills have been separated.

A still further object is to provide a combination casting machine which will have the stationary chill pivoted and which will be equipped with an eliminator so that the castings may be freed from the chill and the chill tipped to place new cores therein for other castings. I 1

These objects I accomplish with the ole vice illustrated in the accompanying drawings in which similar numerals and letters of 20 reference indicate like parts throughout the "several views and as described in the specification forming a part of this application and pointed out in the append-ed claims.

In the drawings in which I have shown the best and most'preferred manner of building my invention, Figure 1 is a side elevation of the device. Figure 2 is a plan view of the same. .Figure 3 is a face view of the pivoted chill showing the push rods therein. Figure 4-. is a back view of the movable chill. Figure 5 is a diagrammatic view showing the chills enlarged, with dotted lines illustrating the different movements of the chills and push rods.

In the drawings T have shown a fluid cylinder A, mounted between a framework B, with a connecting rod C connected with the piston in the cylinder and the moving chill of the machine. A. cross piece 3 is provided across the framework 13 to brace it and hold the chill end of the framework together. Two chills opposed to each other, Known hereafter as chill l and chill 2, are supported on the side pieces +1 and 5 of the framework B. The chill 1 is longitudinally slidableon the said framework and is connected with the fluid cylinder by the connecting rod C. 'A stirrup 6 is provided on each side of the said chill 1 and has a pivot pin '3 on its outer side face to which and on which connecting links 8 are pivoted and carried. Slots 9 are cut in the said links 8 to allow the chill 2 to be tilted. The said chill 2 has push rods 10 provided through holes bored therethrough conneci'ging the inner face'of the casting molds in the chill with an operator plate 11. Pivot 1927. Serial No. 199,455.

connections 12 are provided on each side of the said plate 11 to which the other ends of the links 8 are connected. Springs 13 are provided on each push rod 10 between the plate 11 and the back side of the chill to keep the rods normally retarded into the chill and the 'nner ends of the said push rods are pro vided with an enlarged head to form the back side of the mold into which the molten metal is poured, the head being made of sufficient size to force the casting from the mold without it becoming caught on the edges of the chill and to prevent breakage of the casting from being pushed in only one spot. In large castings or in casting balls where there are a number of castings in each chill, there are a number of push rods provided to adequately cover the entire surface necessary. The said chill 2 is pivoted to the side pieces l and 5 of the framework 13 by the extended pins 14: on which the'chill is carried when either being used in casting or swung back to place cores in the molds. The sides of the said chill 2 are provided with rocker-supporting lugs 15 which lugs have the lower back side curved upwardly to provide a rocker upon which the chill rests to help support it at all times. Stop brackets 16 and 17 are provided on each side piece 4: and 5 at the extreme end thereof and are so arranged that when the chill 2 is upright they are bracing against the back side thereof and when the chill is swung downwardly the back of the chill rests upon the upper inner edge of said lug providing a back stop for said chill to prevent it from moving too far backward. Holes 18 are bored through the lugs 15 and into the side pieces 4 and 5 of the framework and a pin or bar is placed in the said holes when the chill is in the upright or pouring position to lock it in that position when castings are being poured. The bar may then be withdrawn partially and used to tilt the chill 2 backward when desired.

It will be obvious that other means of power might be used to. control the movement of the movable chill.

The operation of my invention is as follows The fluid cylinder is provided with a source of power, not shown, and fluid is introduced into the cylinder to force the piston forward and backward as desired. The chill 1 is controlled by the action of the piston and to pour a casting the chill is moved up into contact with the chill 2 and the molten metal ill!) is then poured into the mold through the openings in the top of the chills. When the casting has been poured and is sufficiently cool, the fluid cylinder moves the chill 1 backward, separating the two chills, and when the chill 1 reaches its extreme backward position the links 8 pull back upon the plate 11, forcing the push rods 10 inwardly, thereby forcing the casting from the mold. The chill 1 is then moved toward the chill 2 a small distance until the push rods are again in their normal position. The bar through the hole 18 is withdrawn and the chill 2 may then be tilt-ed baclnvardly to place cores therein or to facilitate in cleaning the face thereof. The chill is then again placed in position and the chill 1 brought into contact with it for another casting.

Having thus described my invention I desire to secure by Letters Patent and claim 1. In a casting; machine of the class described, the combination of a framework having a tluid cylinder carried thereon; a cross brace for said framework; a set of two opposed chills carried on said framework, one of which is longitmlinally movable thereon, and the other of which is pivoted to the ex treme end thereoi"; pivot pins on said last mentioned chill; rocker lugs on the side ol? said chill, having hole tl'ierethrough in alinen'ient with a similar hole in said framework; push rods through holes in said lastmentioned chill; and a plate secured to said push rods having connecting links joining said plate with said :lirstonentioncd chill to actuate said push rods, by the backward movement of said chill.

2. In a machine of the class described, the combination of a framework; a tluid-controlled cylinder mounted thereon having a piston longi'ti linally movable therein; casting chills carried. on said frame, one of which longitinlinally movable and is connected with the piston in said fluid cylinder by a con nccting rod pivot pins on one of said chills on which said chill is supported; rocker lugs on the sides of said last-mentioned chill to aid in supporting said chill; brackets on the extreme ends of said framework to steady the pivoted chill and to limit its movement; push rods through saidpivoted chill; means to operate and connect said push rods with the movable chill; and means to move said pivoted chill from vertical position to an angled position and back to vertical desired.

In a casting machine of the class described the contibination of a set Off opposed chills mounted on a frame work, one of which chills is longitudinally movable on said framework, and the other of which is pivoted on the end of said framework, for partial rotation, said pivot point being medially located an said chill, and adapted to permit backward movement only of the top end cl said chill; means to move said first mentioncd chill to and from said last mentioned chill; and. means to tilt on its pivot said last mentioned chill, means to control said movement and means through the movable chill to push the finished casting from the chill substantially as dcscribe 1. In a machine of the class described, the combination oi aset of opposed chills mounted on a tramework, one or". which chills longitudinally movable on said framework and the other of which is medially pivoted and secured to the end of said -tramework; pivot pins on which said chill is supported;

rocker lugs on the sides oi" said last ment oned chill to aid in supporting said chill;

means to move said first-mentioned chill. to

and from said last-mentioned. chill; means to lock and release said last-mentioned chill as desired; and means thron h said last-mentioned chill to push the finished products from said chill by the movement of said firstnientioned chill substantially as described.

in testimony whereof I have aliixed my signature. v

IRA n. 'rnavis.