US1215784A

US1215784A - Die-casting machine.

Info

Publication number: US1215784A
Application number: US8576916A
Authority: US
Inventors: John T Enley
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-03-22
Filing date: 1916-03-22
Publication date: 1917-02-13
Anticipated expiration: 1934-02-13

Description

I. T. ENLEY. DIE CASTING MACHINE. APPLICATION FILED mm. 22. 916.

Patentefl Feb. 13, 1917'.

3 SHEETS-SHEET I.

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J. T.. ENLEY;

DIE CASTINGMACHINE.

APPLICATION mm min. 22. 1915.

Patented Feb. 13, 1917.

3 SHEETSSHEET 2.

ifi. 23

4? lllmli Hum" Hi l;

- JOHN T. ENLEY, OF PHILADELPHIA, PENNSYLVANIA.

DIE-CASTING MACHINE.

To all whom it may concern;

Be it known'that I, JOHN T. ENL'EY, a

citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Die-Casting Machines, of which the followin is a specification.

y invention relates to improvements in die casting machines, the object of the in vention beingrto provide 'a machine of the character stated which will permit a quick operation, and which can be, conveniently handled by a single operator.

A further object is to provide improved means for cutting out the s'prue and separating the die sections so as to present the casting in a convenient .position for removal from one of the die members.

A further object is to provide an apparatus of the character stated which is of comparatively simple construction, strong and durable in use.

With these and other objects in view, the invention consists in certain novel-features of construction and combinations and arrangements of parts 'as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings:

Figure 1 is a view in side elevation illustrating in full lines the normal position of the parts for casting and in dotted lines, and

dot and dash lines other positions of parts.

Fig. 2 is a view in front elevation of Fig. I

Fig. 3 .is a view in longitudinal section through the casting pot.

Fig. 4 is a view in vertical section on the line 44 of Fig. 1, and

Fig. 5 is a View in transverse section on the line 5'5 of Fig. '4.

1,.2, 3, and 4, represent uprights connected by a rigid platform 5, and constituting a stationary. frame. The platform 5 is provided with guide openings 6 in line with vertical guides 7, through which vertical rods 8project.

The ides 7 are integral parts of brackets 9 which are rigidly secured to the rear uprights 3 and 4 respectively, and constitute apart of the stationary frame. The rods 8 are screw-threaded at their lower ends as shown at 10, and have inverted U-shaped yokes 11 adjustably secured to the lower ends of the rods by nuts 12 located at oppo- Speciflcatlon of Letters Patent.

Patented Feb. is, 1917.

Application filed March 22, 1916. Serial No. 85,769.

sits sides of the yoke, and screwed onto the re s.

The lower ends of the yokes 11 are connected by links 13 with a bifurcated lever 14. This lever 14 is pivotally supported between its ends on a standard 15, and at its outer end is provided with a roller 16 which is engaged by a cam lever 17. The cam lever 17 is supported in a standard 18 and is provided with a notch 19 in one end so as to receive the roller 16 and hold the lever 14 in one of its extreme positions, as will be more fully hereinafter described.

On the upper ends of rods 8, bearing blocks 20 are secured, and provide rotary mounting for a shaft 21. A pulley 22 is keyed to the central portion of shaft 21, and a cable 23 is secured to pulley 22, and is passed over idle pulleys 24 suspended from the ceiling 25, and at its free end is. secured to a weight 26 which exerts a pull on the cable, tending to turn the pulley 22 and elevate the shaft 21 and parts connected thereto.

27 and 28 represent the upper and lower.

.die members. The upper die member 27 is secured to a die base 29, the latter secured to an upper platen 30. This platen 30 is provided with hangers 31, which latter are keyed to shaft 21. The lower die member 28 is secured upon a lower platen 32, the latter having notched guides 33 at its corners receiving and sliding upon the uprights 1, 2, s, and 4. a

-The lower platen 32 is appreciably larger than the upper platen 30, and said platens are normally connected by locking bars 34. These bars 34 are pivotally connected to brackets 35 on lower platen 32, and at their free ends are provided with cam levers 36 which engage over the upper face of upper platen 30, and clamp the parts in such position that the die

members

27 and 28 are secured together.

The lower platen 32 is provided at its sides with eyes 37, receiving hooks 38 on cables 39. The cables 39 are passed over pulleys 40 suspended from the ceiling 25, and provided at their free ends with weights 41 which tend to elevate the lower platen 32 or rather operate as counterweights to balance the same.

A locking'lever 42 is pivotally supported between its ends on one of the hangers 31, and is provided at its inner end with a notch 43 to receive a pin 44 fixed to bracket 9.

This locking lever 42 holds the hanger 31 against lateral swinging movement, and

thereby prevents any turning movement of shaft 21. I

As above stated, the shaft 21 is adapted to be turned by the weight 26, as the cable 23 is secured to one side of the ulley 22, sothat the downward pull of weight 26 tends to turn the pulley.

45 represents a casting pot which 18 located below the lower platen 32, and is provided with a plunger 46 which is movable in a passage 47, and discharges the molten metal through a nozzle 48. Nozzle 48 registers with a tube 49 secured in the center of lower platen 32, and communicating with the gate 50 in the lower die or mold section 28.

The plun r 46 is connected by a Imk 51 with one en of alever 52. Lever 52 is pivotally supported between its ends on a bracket 53 fixed to the casting pot 45, and at ts other end connected by .1. link 54 with a hand lever 55. Lever 55 has a pivotal support 56 on upright 1, and is located convemently to lever 17.

57 represents m improved sprue cutter which is supporte in the upper platen 30, .die base 29, and upper die or mold member and pin connection 60 with the-sprue cutter 57.

The operation of my improved die casting machine is as follows:

The several views of the drawing illustrate in full lines the normal positions of the several parts for casting. The operator first moves lever 55 to the position shown in dotted lines in Fig. 1, and this movement of the lever, through the medium of link 54, lever 52, and link 51, causes the plunger 46 to eject a quantity of metal sufiiciently to fill the mold.

' After lever 55 is returned to its normal Vertical position, lever 17 is swung to the position shown in dotted lines in Fig. 1, and this movement of lever 17, through the medium of lever 14, elevates the rods 8, cansing both platens 30 and 32 with the parts carried thereby, to be elevated to the position shown in dotted lines in Fig. 1. When in this position, the lever 58 is moved downwardly to move the sprue'eutter 57 down-" wardly, and eject the sprue through the tube upper die member 27.

The operator then moves lever 42 to release the same from pin 43, when. the weight 26 will cause the shaft 21 to turn by reason of the engagement of cable 23 to pulley 22. This turning movement of shaft 21 will swing the upper platen 32 with its die base 29 and die 27 to the position shown in dot and dash lines in Fig.1, presenting the casting in a convenient position for removal' from the upper die member.

As soon as the casting is removed, the upper platen is manually swung back to its normal lposition, when lever 42 engages pin 43 and olds the upper platen against pivotal movement. The lever 17 is then, oper-' ated to permit the upper platen to lower until the

die members

27 and 28 are together, when the locking bars 34 will be returned to their locking position, and the machine will be ready for operation as before.

I would have it understood that while the weight 26 is suificient to swing the upper laten to the position shown in dot and dash ines inFig. 1, it is not sufiicient to overcome the weight of the rods 8, combined with the upper platen and parts carried thereby, hence the upper platen will move downwardly when permitted by the lever 17 The combined weights 26 and 41 tend to balance the. parts, but are not sufiicient to exert an upward movement or hold the parts in their upward position unassisted so that when the lower platen 32 is released, it will fall without undue jar to normal position.

I would have it understood that my improved machine is capable of use with various forms and sizes of die members.

Various slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: q

1. In a die casting machine, the combination with a mold comprising two members, means for raising said members while they are together, and means for separating the molds after they have been raised, substantially as described. 8 2. In a die casting machine, thecombination with a two member mold, means for en- I mold members are separated, substantially as described.

3. In a die casting machine, the comb nation with a mold comprising two members,

means for raising said members while they are together, means for separating the molds after they have been raised, and means for moving one of the mold members laterally relative to the other, substantially as described.

4. In a die casting machine, the combination with a frame, of upper and lower platens, mold members supported by the respective platens, means for simultaneously moving both platens, and means for separating and afterward swinging the upper platen laterally relative to the frame and to the other platen, substantially as described,

5. In a die casting machine, the comb1nation with a frame, a lower platen guided in its movement on the frame, an upper platen,

in the frame, a shaft mounted to turn at the upper ends of said rods, a pulley secured to the shaft, a weighted cable secured to the pulley and tending to turn the pulley, an upper platen secured to turn with the shaft, and carrying a mold member, a lower platen carrying a mold member, means normally locking the platens together, and meansfor raising and lowering the rods, substantially as described.

' 7. In a die casting machine, the combina tion with a frame, vertical rods supported in the frame, a shaft mounted to turn at the upper ends of said rods, a pulley secured to the shaft, a weighted cable secured to the pulley and tending to turn the pulley, an upper platen secured to turn with the shaft and carrying a mold member, a lower platen carrying a mold'member, locking levers pivotally connected to the lower platen and having cams thereon engaging over the upper platens, and means for raising and lowering the-rods, substantially as described.

8. In a die casting machine, the combination with a frame, vertical rods supported in,the frame, a shaft mounted to turn at the upper ends of said rods, a pulley secured to the shaft, a weighted cable secured to the pulley and tending to turn the pulley, an

upper platen securedto turn with the shaft, and carrying a mold member, a lower platen carrying a mold member, a bifurcated lever pivotally supported between its ends and connected to both of said rods, said bifurcated lever having a roller at its free end, and a cam lever engaging the roller of the bifurcated lever. and adapted to raise and lower said rods, substantially as described.

'9. In a. die casting machine, the combination with a frame, verticalrods supported in the frame, a. shaf-tmounted to turn at the upper ends of said rods, a pulley secured to the shaft, a Weighted cable secured .to the pulley and tending to 'turn the pulley, an

' upper platen secured to turn with the shaft and carrying a mold member, a lower platen carrying a mold. member, locking levers pivotally connected to the lower platen and having cams. thereon engaging ever the upper platens,-a bifurcated lever pivotally supported between its ends and connected to both of said rods, said bifurcated lever having a roller at its free end, and a cam lever engaging the roller-of the bifurcated lever andadapted to raise and lower said rods, substantially as described.

10. In a die casting machine, the combination with a frame, upper and lower platens normally connected and movable in the frame, mold members carried by the respective platens, and normally together, means for raising and lowering the platens, means permitting the downward movement of the lower platen after the platens are elevated, whereby the-mold members are separated, said upper platen having a pivotal support, and means for swingingtlie upper platen laterally on its pivotal support, substantially as described. r

11. In a die casting machine, the combination with a frame, upper and lower platens normally connected and movable in the frame, mold members carried by the respective platens, and normally together, means for raising and lowering the platens, means permitting the downward movement of the lower platen after the platens are elevated, whereby the mold *members are separated, said upper platen having a pivotal support, a locking lever normally holding the upper platen against pivotal movement, and means compelling the upper platen to swing when said locking lever is released, substantially as described.

12. In a die casting machine, the combination with a frame, of vertical rods supported in the frame, a shaft carried by the upper ends of the rods, an upper platen secured to the shaft, means tending to turn the shaft and swing the platen laterally relative to the frame, a locking lever engaging the frame and normally holding the platen. against lateral movement, a lower platen movable in the frame, mold members carried by the respective platens, devices normally locking the platens together, and weighted cables connecteclfto the lower platen tending to elevate the latter, sub. stantially as describedi v I V,

18. In a die casting machine, the combination with a frame, of upper and lower platens movable vertically relative to the frame, mold members on the respective platens, a castingpot below the lower platen having a nozzle registering with the gate in the mold, means for forcing meta"; from the casting pot into the mold, means for elefor moving one of the mold members later- 'ally relative to the other, substantially as described. f

In testimony. whereof I have signed my 20 name. to this specification in the presence of two subscribing witnesses.

" JOHN T. ENLEY. -Witnesses:

HARRY D. B CHAS. E, Bo a?