US1207361A

US1207361A - Molding-machine.

Info

Publication number: US1207361A
Application number: US?5333614A
Authority: US
Inventors: John N Battenfeld
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-07-27
Filing date: 1914-07-27
Publication date: 1916-12-05
Anticipated expiration: 1933-12-05

Description

J. N. BANENFELD.

MOLDINGv MACHINE.

APPLICATION FILED JULY27. 1914.

Patented Dec. 5, 1916.

2 SHEETS--SHEET I r VW. Ll

.L N. BTTEN'FELD.

NIOLDING MACHINE.

APPLICATION FILED JULY 27.1914.

Patented Dee. 5, 1916 2 SHEETS-SHEET 2.

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Specification of Letters latent.

)Patented Dec. 5, 19116,

Application filed July 27, 1914.-.; Serial No. 353 336.

To LN flo/tom t may concern: i

Be it known ,that l, Jon N ldn'r'rnnrnnn, a citizen of' the United States, residing at Cleveland, in the county ot Cuyahoga and State of Ohio, have invented a certain new and useful ll'nl'irovement in liloldingdiiiachinos, of which the Yfollowing' is a full, clear, and exact description.

This invention relates to a molding machine, and provides a machine which combines a jarring mechanism and means for comliressing the sand within the iasl-c. Further, it comprises means for drawing the pattern from the mold.

Generally speaking, the invention com-- prises the elements and combinations thereof set forth in the accompanying claims.

Reference Ishould be had to the accompanying drawings forming a part ot this specilication, in which Figure 1 is a perspective elevation of the machine; Fig. :"2 is a perspective elevation showing` the machine in a. certain operating position; Fig. 3 is an elevation with parts in section of themolding machine; and Fig. i is a top plan view on the line stl-: on Fig. 3. i

The whole machine is mounted upon a base 1, from which there are upwardly ei;- tending

legs

2 and 3, which legs are joined to a rear standard al, which has an upward extension f y The cylinder (3 is preferably secured to the legs f2 and and to the back portion i. This cylinder (i is hollow, and .inthe bottom portion is provided with an opening il Secured to the cylinderI (3 is aY cylinder 8, the central opening in which reg' ters with ytheopening 7. The lower end ot the cylinder 8 is closed by a'plate 9. This plate is'proyided with openings through which entends rods 1G, which are screw'threaded a-t'their lower ends to receive nuts 11 The lower ends otthe rots 1() engage with the base 1, while the nuts are screwed into engagement with the plate 9. These rods therefore afford in part a supporting means tor the plate 9, and steady the lower cylinder 8 and plate 9 against Vibration.V

Within the cylinder 6 there is a hollow raising piston 12, which is provided with suitable packing to .make an air tight joint between the piston 12 and the cylinder 6.

.Extending downwardly from the piston 12 is a piston 13, which passes through the opening .7 in the cylinder (j, and has a working sliding fit within the cylinder 8. Suitable packing is provided for the piston 13, as indicated at 13a.

The hollow piston 12 is provided with head 11i, which is adapted to rest upon the upper portion or' the cylinder 6. rlhis head is provided with a central opening, and the interior of the piston 12 is hollow. Through the opening in the head 14 there extends a casing 15 to the lower portion of which is secured a hollow extension casing 15a. The casing 15 is secured to a supporting table 1G, so that the supporting table 16 and the casing 15, when moved, will move as a. unit` Withinthe casing 15, which is hollow,

there extends a piston 17. This piston is ofV less diameter than the diameter of the casing 15, and so provides a space between the piston 17 and the casing 15. The piston 117 carries 'a head 18 having suitable packing, which engages with the interior `wall of the casing 15. The head 18 has a downwardly projecting' portion 19, which extends within the lower casing 15a. The piston 17 at its upper end projects through a suitable stuffing box indicated at 20, which is secured to or :Forms av part of the casing 15. The piston 17 is secured to a plate 2l.

Upon the supporting table there are secured four or more posts which are represented at These posts are mounted in slots, indicated at 23, which permit lfthe posts 22 to be adjusted inwardly or outwardlyupon the plate 21.

riecin'ed to the table 1G are four or more upwardly extending posts 24;, and these posts at their upper ends support a molding table 25. The posts 24% extend through suitable openings in the plate 21. The molding table 25 is provided with slots Q6, which permit movement of the posts 22 in accordance with the adjustment of these posts in the slots 23.

The molding table 25 is adapted to receive a pattern plate indicated at 27, and the tops of the post-s will lie substantially flush with the upper surface et' the pattern plate y.27, andV when a flask is mounted upon the 'ceive nuts'31. These nuts may be adjusted upon the rods 30, and will serve as a means for limiting the upward movement of' the y'table ,16. Y Theplate 9 is provided with anopening 32,'which forms an inlet for a motive fluid u'nder compression. In the cylinder 8 there is fanexhaust port 33, which lies a suitable distance abovethe lower end of the piston 13, when this piston is in its lowermost ,positien'. When motive fluid is admitted through the port- 32. it will raise the piston 13`and" with it all the yparts of the machine which are supported upon this member. l/Vhen the piston rises far enough to uncover the port 3.3, the air will exhaust, permitting the piston and the parts carried thereby to descend by gravity. This cycle of operations is continuous, and results in' a jarring action 'which causes the sand within the flask to pack around the pattern in a manner well understood in the art.

p `l\Iotivefluid may be supplied from a fluid pressure line to the port 32, by means of a conduit 34, which will be governed by a suitable valve 35, Icarried by a. bracket 36, which is suitably secured to the hollow cylinder 6.

There'is port 37 whichcommunicates with the lower portion of the interior of the cylinder 6, andbcneath the hollow pistonv 12. This port 37 is by means of a suitable conduit 38 l.connected with a fluid pressure line,

and. cont-rolled by a valve 39, which is a three-way valve` in one position, permitting compressed fluid to pass beneath the piston 12 and in another position permittingy the fluid Nto exhaust from beneath the piston 12. lVhen theifluid'under pressure is supplied beneath the piston 1Q, it will cause the piston 1Q and lthe parts carried thereby to be raised.

In conjunction with the pipe there is a valve generally indicated at 3S attached to axlevcr 3S", and upon the lever there'is a weight 38C. `This weight is sopositioncd upon'ithe lever 3S thaty the valve 38""will operi fat a predetermined pressure. lVhen therefore air is admitted through the valve neath the head 1S ol the piston 17. rThis duct 4l() by means of a flexible conduit 41 .communicates with a fluid pressure line, and is controlled by a valve 42.

` rlfhrough the upper wall o'f the casing 15 there is a duct l13, which communicates with the space between the piston 17 and the inner wall of the piston 1V. This duct by means of a conduit 4i communicates with the fluid pressure line, and under normal conditions of operation this duct is always in e'on'imunieation with the pressure line. Thisuprovides a means for normally holding the piston 17 against relative movement during the jarring operation, for, as will be readily appreciated. there would otherwise bel considerable likelihood of the piston 17 moving as the piston 12 is moved during,r the jarring operation.

rThe presence of the air pressingr down upon the head 18 of the cylinder 17 also has theafunction of' steadyinnr the raising of the mold when a ir is admitted beneath the piston head 1S. It, foi any reason, the piston head 13 does not move uniformly, due to any sticking or hanging action, the pressure will build up beneath the piston head 1S, and, whensuiiiciently great, will raise the piston head 18 with a` jerk. That is to say, this would be the likely thing,r but for the preff sure acting; downwardly upon the head 18. The air above the piston head 1S will act as a cushion, so that there will beno violent movements of the piston 17 and its head 1S. lt is, however. entirely possible to move the piston 17 by admitting motive fluid beneath the. head 18, because of the greater area` for pressure beneath the head 1S than the pressure exerted b v the air above the head.

Upon the urnifrht portion 5, there are extending' ears 45, which are spaced apart, and receive an arm 4G. The portion of the arm between the ears and the ears themselves are provided with openings which aline and receive a pin 47. The arm 4G at its central portion has an opening` which is screwthreaded` and cooperatingr with this opening is a post 1S which is also screw-threaded. llngaling with the post and lying' above the arm 4-(3 is a threaded nut 4S), which will lock the post 1S in its adjusted position with respect to the arm 4G. Upon the lower part of 9./ln a molding` machine, the combination ,with a support and a supporting table, a

.ipiston member and a cylinder member, one

ot said members supported from vthe support, theother carried by the supporting table, ,a molding table supported by and above the supporting table, an intermediate plate member, guiding means for said interminate plate member carried by the sujjqgorting able, pins carried by the intermediate plate member and adapted to extend through openings in kthe molding table, and cooperating means carried by the supporting tabl)l and intermediate plate member for moving the intermediate plate member.

10. ln a, molding machine, the combinar tion with a base, a molding table,`al cylinder member, a piston member, one otsiiid members being supported by the base, the."

other of said members supporting the mold# ing table, a presser plate above the molding table, a. conduit for conducting compressed Huid between said cylinder and piston, a valvey in said conduit, and means for setting said valve to open at a predetermined pressure.

11. In a molding machine, the combination with a base, a molding'table, a cylinder member, a piston member, one of said members being supported by the base, the other of said members supportingthe molding table, 'a presser plate above the molding table, a. conduit for conducting compressed fluid between said cylinder and piston, a

valve in vsaid conduit, and means normally holding said valve closed, said means' being adjustable so that the valve may be opened at predetermined pressures.

12. ln a molding machine, the combina.- tion with a base, a molding table, a cylinder member, a piston member, one of said members being supported by the base, the other of said members supporting the molding table, a presser plate above the molding table, a conduit for conducting compressed fluid between said cylinder and piston, a valve in said conduit, a lever engaging said valve, and a weight adjust bly mounted upon said lever.

13. In a molding machine, in combina tion with a jarring cylinder and piston, a squeezing cylinder and piston, a presser plate adapted to engage the sand in a flask, a molding table, a supporting member below the molding table, means carried by the supporting member and adapted to extend beyond the molding table to engage a Hash and raise the same, and means ,for operating said supporting` member.

14. In ay molding` machine, in combination, a jarring` cylinder and piston, a squeezing cylinder and piston, a presser plate adapted to engage the sand in a flash, a molding table, a supporting member beneath the molding table, members extending trom said supporting member and adapted to engage a flask upon the molding table, a fluid opersaid plate adapted to engage a flask upon the molding table, a piston member and a cooperative cylinder member, one ot which members is carried by said supporting table, the other ot which is supported Strom the squeezing piston, and means tor admitting a vtluid under pressure between the last men tioned cylinder and piston,

1o'. In a molding machine, in combination, an alined jarring cylinder and squeezing cj, linder, an alined and connected jarring piston and squeezing piston, a molding table, a supporting table. beneath the molding table supported by the squeezing and jarring pistons, means carried by the supporting table adapte 1l to engage a flask upon the molding table. ay cylinder member and a 'piston member, one ot' which members iS carried by the said supportingtable, and the other issupported from the squeezing piston. and means tor admitting air between the last mentioned cylinder and piston. v

17. ln a. molding machine, in combination, an alined jarring cylinder and squeezing cyl inder, an alined and connected jarring piston and squeezing piston within the aforesaid respective eylinders, means Afor admitting motive 'fluid between the aforesaid cooperatingcylinders and pistons` a supporting table above the squeezing piston, a molding table supported by and above said supporting table, a, plate intermediate the molding table and the supporting table, means carried by said plate adapted lo engage a flask carried upon the molding` table, a piston carried bv said plate, a cylinder carried by said supporting table, means for admitting motive fluid between the last mentioned piston and cylinder, and a pressure plate supported above the molding table and adapted to engage the sand within a flask the molding Lubin, menne for operating said silient pressure above and upon the last menmembers comprising a piston member and a tioned piston hea-d.

eopemting cylinder member, one of which In testimony whereof, I hereunto affix my members is married by said plete7 the other signature in the presence of two Witnesses. of which is supported from the squeezing JOHN N. BATTENFELD.

piston, means for admitting motive Huid be- Witnesses: tween the last mentioned cylinder and pls- A. J. HDsoN, j ton, and .means foi eifectmg a downward re- L. PORTER.