US2058762A - Continuous casting machine - Google Patents

Description

Oct. 27, 1936. w. E. BIBLE 2,058,762

CONTINUOUS CASTING MACHINE Filed Sept. 24, 1934 2 Sheets-Sheet 1 INVENTOR.

(3 M75? ff 5/545 1936- w. E. BIBLE 2,058,762

CONTINUOUS CASTING MACHINE Filed Sept. 24, 1934 I 2 Sheets-Sheet 2 4 'EIW W Patented Oct. 27, 1936 UNlTED STATES PATENT OFFICE CONTINUOUS CASTING MACHINE Walter E. Bible, Denver, Colo.

Application September 24, 1934, Serial No. 745,255

'6 Claims. (01. za-s'n This invention relates to a machine for continuously casting articles from metal. It is more particularly designed for casting grids, connecting straps, posts, etc., for storage batteries, but

a is not, of course, limited to this particular use.

The principal object of the invention is to provide a device of this character which will operate continuously to close a mold, fill the same with moulten metal, open the mold, and dis- 1 charge the casting therefrom.

Another object of the invention is to so construct the machine that while the metal in one mold is chilling. another mold will be filling so that the metal flow will be substantially. con- 15 tinuous.

A further object of the invention is to provide,

a continuous pouring device for a casting machine which will allow the metal to flow continu ousLv from the melter or metal reservoir even go though the individual molds are poured intermit- A still further object is to so construct the ma-' chine that any desired number of molds may be applied thereto to increase the capacity with- 25 out, materially increasing the power required,

and so that a variety of different kinds of castings may be made simultaneously.

Other objects and advantages reside in the detail construction of the invention, which is deso signed for simphcity, economy, and efliciency.

These will become more apparent from the following description.

In the following detailed description of the invention reference is had to the accompanying 35 drawings which form a part hereof. Like numerals refer to'like parts in all views of the drawings and throughout the description.

In the drawings:-

Flg. 1 is a perspective view of a machine in 4 which the invention is embodied.

Fig. 2 is a longitudinal section therethroughr Fig. 3 is a detail section through a pair of mold sections illustrating ejecting device applied 4 l 'igiiisaaimilarview withthe mold sections heov n'n flv w m; 5 a al'd'etail view of the mold sections or I rim-4.1mm in thedirection of'the arrow 5,

' fi is-a-jtic view illustrating the oil themetal-pouring tray.

preferably'fform'ed of two'side frames Iii con-- by a. hr lateral frames l I. The lat- 5 ii extenddownwardlytoformsup- The invention comprises: a supporting. frame,"

porting feet and extend upwardly above the I frames l0 tosupport pairs of bearing boxes i2.

Each of the bearing boxes I! siidably supports a, pair of slide rods ii, there being a pair of slide rods I3 at each side of the machine extending it longitudinally thereof. The slide rods are reciprocated from a cam I4 mounted on a cam shaft l5 which extends laterally of the machine.

The eccentric movement of the cam i4 is communicated to the slide rods through a pair of cam follower rolls It. The rolls l8 are carried on lateral shafts which terminate in separating mem-' bers i1 fixedly secured to the slide rods i3.

. 'I'herodsi3 the molds. Each of the molds consists of a first mold section l8, and a 18 second mold section it. Themold sections are secured to vertical moldblocks 20 through which the slide rods l3 pass. The machine as illustrated carries two complete molds, there being one pair of mold sections on each side of a partition plate 20 2| through which the rods it pass. The blocks 7 not the first mold sections it are flxedlysecured to the rods it, while the blocks 20 of the second moldsections I! are free to slide along the rods l3. The blocks 20 of the latter sections carry projecting studs 22 which, at certain positions, contact with the extremities of stationary stop members 23 which project from the blocks l2. Coiled springs 24 surround therods It between the blocks 20 and the partition plate 2|.

The cam shaft l5 may be rotated in any desired manner. As illustrated, it is rotated from a motor (not shown) which drives a speed reducer 25 through the medium of a suitable belt 26. The speed reducer transmits the power through a suitable chain or belt 21 to a drive sprocket 28 fixed on the cam shaft l5.

It can be readily seen that, as the shaft l5 rotates, it will in turn rotate the cam ll. This cam, owing to its eccentric contour will transmit a reciprocating motion through the rolls It to the slide rods ii. The reciprocating motion of the slide rods will be transmitted directly to the first mold sections it which are fixedly secured thereto.

like groove}! in their top for receiving the molten metal. fTh'e metal is poured into the 7 molds from a tilting pouring pan 30. The pouring pan is supported upon suitable brackets 3i 5 above the-molds'and is arranged so that it will rock or tilt back and forth as the molds alternately open and close. The rocking or tilting motion is causedby the action of a cam 32 fastened on the cam shaft II. The cam 32 islprovided with adepressionuinoneeckaandwithsproieetion s4 intheedgedlrectlyoppositethsdepression ss. Cam rollers II roliow the eam.edge and alternately enter the depression as andride over thepmiectionle. Theeamrollersllareearrisd ona'connectingrod 8| whiehconneets'witha cranki'lontheshaftofthepouringpahli. 'Ihepouringpanisprovidedatoneeatremity with a metal-receiving compartment II which.

partment II from any suitable controlled by any suitable valve 48.

' Opsraiioa In operation, cate with a short pauseat eaehextreinity is forced tightly againstitsooactim mold ls. andthesprings uncompressed-salsa partition plate Ii. This moldis position ready to receive its time.

will be continuous.

mold sections is to ,movefaiter' sections have come into contact thus insuring a snugcontactbetween the l pan in the compartment :0. -'1his compartment, asstated.hasaV-shapedweirasshowninl"lg.6.. The metalfiows through this weir only while the pan is in the horizontal or nonpouring position. As the pan tilts to the pouring position, the metal in the compartment runs to one side, as shown in Fla. 6, and cannot now into the pouring portion of the pan. By this construction, the pouringportionof thepanreceivesitsmetalintermittently, and Just the proper amount for a single casting, yet the compartment it receives its metal continuously.

liector m The machine as thus far described. is satisfactory for castings of a type which will fall from the mold by gravity. 'I or castings which have a tendency to adhere to the mold sections, some means must be provided for'eiecting the casting from the mold. Such a means is illustrated'in Figs. 3, 4, and 5.- In this form oi'the invention.

the two mold sectio'm'" and I! with elector pins as, which extend race ofthemoldsectimmrwsrdlythmughthe-rear' face thereof. and P vided with melting apparatus. the ilow beinlv ois reciprocation. Inns. 2. the rods-are'shown a't e wsh "p sition. wben ntha osi-p tion, the second mold section iloi the lett 'mold springs winch always neturntheinto their proper position.

Aneieetingplateli ispositionedattherear of'each of the mold sections. The two electing plates are tied together by means of tie members 4! which, in the present installation. pass through suitable notches formed in the blocks II. when While a specific form of the improvement has and illustrated herein. it is desired tobounderstoodthatthesamemay bevaried, withinthe scope of the appended claims, without departing from the spirit of the invention.

rods; a first mold face secured to and supported bysaidsliderodsso astomovetherewith; asecondmold face supported by said slide rods between said first mold face and said partition plate, said second mold face being free to move relative to said slide rods; springs separating said secondmoidiace from said partition plate; means for I saidrodssoas'toforcesaidfirst mold face against said second mold face to compress said springs, thence to move both mold i'aces away from said partition plate; and a stationary stop member for limiting the movement of said second mold face to a predetermined distance so that the first mold face may withdraw therefrom.

2. A molding machine comprising: a frame; a series of horizontal, parallel slide rods supported by said frame; a partition plate supported by said frame and extending laterally of said slide rods:

afirstmold section carried by and secured to said rods at each side of said partition plate and in parallel relation thereto; a second mold section mounted between each of said first mold sections and said partition plate, said second mold sections being supported by but free to move along said slide rods; spring means interposed between each oi said second mold sections andsaid partition plate; a stationary stop member arranged to contact with each of said second mold sections at a predetermined distance from said partition plate; sndmeanstorreciprocatingsaidrodssossto move one of said first mold sections toward its adjacent second mold section and said partition, while'the other first mold section moves with its second mid section away from said partition plate toward said stop member.

8. Inacastingmschine havingametal pouring device. a series of parallel, fixed-together'slide rods below said pouring device; a first mold section secured to said rods at each side of said pouring device; a floating mold section free to move on said rods at each side of said pouring device and between the latter and said first mold sections; stop means for limiting the movement of said floating sections; and means for reciprocating said rods and said first mold sections as a unit so that a first and second mold section will contact with each other alternately at each side of said pouring means and alternately separate from each other at a point removed from said pouring means so that one pair of mold sections will remain closed while the other pair of mold sections are closing.

4. A casting machine comprising: a supporting frame; bearing supports extending upwardly from said supporting frame; two pairs ofparallel slide bars slidably supported by said bearing supports, there being one pair at each side of said frame; a stationary member extending upwardly from said frame; a first mold face secured to and supported by said slide rods so as to move therewith; a second mold face supported by said slide rods between said first mold face and said stationary member, said second mold face being free to move relative to said slide rods, said stationary member being positioned to contact with and limit the movement of said second mold face; separating members fixed to and extending between each pair of said rods; lateral shafts extending across said frame between said separat ing members; a cam positioned between said shafts so that the latter will act as followers for said cam to impart reciprocatory movement to said rods so as to force said first mold face against said second mold face when the latter is stopped by said stationary member, thence to move both mold faces away from said stationary member; and a stop member for stopping the movement of said second mold face at a predetermined distance from said stationary member so that the first mold face maywithdraw'therefrom.

5. In a casting'machine: a supportingframe; a pair of horizontally positioned: parallel rods slidably supported at each side of said-supporting frame; mold faces carriedon and actuated to and from each" other bylthe reciprocation of said rods; a pair of spaced-apart separating members secured to and extending between the rods of each pair; a pair of shafts extending between the separating members at the opposite sides of the machine; a cam positionedto rotate between said shafts; and means for rotating said cam, said shafts acting as followers thereon to reciprocate said rods in consequence of the contour of said cam.

6. A casting machine comprising: a supporting frame; a series of parallel slide rods slidably supported by said frame; a stationary plate projecting from said frame between said rods intermediate the extremitiesof the latter; a first mold plate suspended between and secured to said rods 'at each side of said stationary plate; a second cooperating floating mold plate supported by said rods at each side of said stationary plate, one of said floating mold plates being positioned on said rods at each side of said stationary plate and between the latter and one of said first mold plates; and means for reciprocating all of said rods simultaneously so as to alternately force said first mold plates against said second mold plates when the latter is stopped by said stationary plate,

thence to move the contacting first and second plates both away from said stationary plate; and a stop member at each side of said stationary plate for alternately stopping the movement of said second mold plates at a predetermined distance from said stationary plate so that the movement of said rods may withdraw said first plate therefrom.

WALTER E. BIBLE.

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