US891489A - Molding-machine. - Google Patents

Description

W. LEWIS. MOLDING MACHINE. APPLIGATION FILED DEU.1.1906. Y

l v [Nm/Ton Y rob/ver PATENTED JUNE Z3, 1908.

4 SHEETS-SHEET' 1.

rJQQBL'LASQ, PATBNTED JUNE. '23; 1998.

,-w. LEWIS. MOLDING MACHINE. AlPLIUATION FILED DEG'. 1, 1906.

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- 'Mlm/ran 10. Eliton J. A

e ks' J2 to .an 'arm J3 secured to the shaft.D. Y The shaft D is'returned to its original posi-.e` ltion with the cylinders F vertical by means lower ends to ins I2 -carried byarms Is rig-v idly secured Ato a shaft I4 journaled in brackets A5 extending from the 'main frame assist in preventing independent movement of the'A p istns F1 without simultaneous movement. A

The shaft Dis-rotated to carry the cylin-4 imiti'ng their capacity for The` pistonJ. is connected by of a helical compression spring K adjustably connected at its up `er end to an arm K5. se cured tothe shaft 'and at its lower end. to .an abutment K2. ad'ustably secured to the frame member' A. racket arms Lsupport buffer springs L1 andLz, whichcushion the movements of thecylinders away from and backto the vertical osition resectively. It. be understood t at the bu a er .springs L? are under initial loads and act only. to absorb shock vat the instant at zwhich the .cylinders return tothe verticalposition, after -whichthey act as stops against which the spring K2 `vholds the cylinders in the trulyfvertical position.

f Oindicat'es the pipe leading fromia sourceof air or liquid under pressure. Suitable valves, 51, 52, 53, and 54, control connection from the 'pe O to pipes 1, 2, 3 and 4, resfpectivel ipe 1l leadsto a. reservoir 6 om which lead pipes 7 eachterininating in line withthe aXis of the shaft 'D ina coupling member 8 pivotally connected to acoupling member 9. The .coupling members 9 are connected by pilli 10 vto the cylinder s aces formed in the c'y l ders F. The pipe 2 eads through a iiexible: connection 11 to a. pipe 12 connected by a coupling- 13 to a lpipe 14 supor'ted by the ltrunnion engaged y the crosshead F3. 'From pipe 14, connection is made to suitable mechanism for vibrating or'jar-4 ing the valve 53 and 'arring the table to niega.

. Fl'being droppe settle sand contained y'the flask P resting on the platform or frame G3 about the pattern Q secured to the frame G3. Thel condition of the. yapparatus at that time is shown During the jarring operation the i'ameG3 rests u on the table-B, the pistons d) so that the trunnions Giare slightly above their' bearings in the bearing supports F5. Whenv the y sand has been ders F cuit of the-vertical .position by 'a liuid pressure device comprising a cylinder J and.'

firmly. settled about 'the pattern and the valve 53' is closed, the mold board R clamped lin `lace in any'suitable manner, as

`'bymeans o clamps R1 and R? which enga e" the rabbetededges.v G" of, thej frame 3.

The pins are thenslidinto position to engage; the otches-Go and' the-.valve A51 .is turned to. admit pressure -rom thepipe 0. through .the/ ipe 1reservoir 6," pipes 7, coupling"l mem ers-8 and 9, pipes A10 .tothe move out of their cylinders and ift-l the frame G3, *and .parts 'supported by it, above, the

table B. The spring K acting onl the .arm

Kl prevents any,v angular v.movement of-tlie.4

cylinders F. at this time.` When thev plat-" vform I,Gis raised above the table B,a,suiii'"-= cientfdistance, the pins H are withdrawn and.

'the frame 'G3 and parts carried by. it `aieturned over. .'Ordinarilythe center of a.v'

that this A'turning' over movement occurs automaticall when the pins are withdrawn.

The controlling valve 51 is then turned to,` connect the ipe 1 vto the 4exhaust ort'55 and opped down upon t 'e' table *Bp The clam s R1 and R2 are then -removed'and having been thrown into position I the flask is the pins to engage the walls of the notches G5, .valves ity of the member Gan'd arts carried, yit,l is`then above the axis of. t e trunnionsG s o- 51 and 52 are operated to admit pressure to the vibrator through the valve and connec- A tions 2, 11,12, 13 and 14 and to again admit `pressure through the pipe 1 to raise the pis. tons Fx and'draw the attern romthe mold,

which with. the. ins

remains uponthe table B;

-As the pattern clears the mold and the pistons move to the'upward limit of their movement, valve 54 is `opened to admit pressure throughV the pipe 4, reservoir '15 and ipe `16 to the cylin ton Je and turn the shaft Din its bearings. This swings the cylinder F and pistonsand parts carriedv by them to pcsition shown in.

dotted lilies Ain lig. 3. This moves the frame' 'G3 kand the attern vaway from the flask to permit the atter to be 'removed in any suitable. manner. e Usually this removal :is brought about by means of an overhead traveling crane, or the like. When the iiask is removed, the pipe 4 is connected to the vexhaust 56 bythe operation of its valve and the cylinders are returned tothe vertical osition b -the action ofthe spring K2. giinilarly t e pi e 1 'is connected to exhaust and the pistons 1 dro down i'n `their cylinders, the pins H1 having been withdrawnin the mean time, the frame swings back to the position shown in Fig. 1 and again rests on the table when the pistons F1 approachthe lower limit o' their movement.

The apparatus described has been found in practice to be simple and reliable in operation and to. greatly facilitate and expedite erJ to raise the pisiso theformation of molds. It will be obvious,

however, to' those skilledinthefart', ythat changes may be made in the forni ofm'y in- -fyention Without :departing frrnits spirit.

I claim asf'new and desire `tjosecure by Let ters Patent is r Inf'particular it 'will be l'readilyunderstood that'someof the advantages of my'invention pressure" means are employed for raising the rame G3 and-rocking the'shaft D.' -Having now describedkmy invention, what 1'.- In amolding machine, a frame, a molding table, supported thereon,- a horizontal shaft ]ournaled therein, cylinders connected.

to said shaft at o posite ends ofthe table,-

.pistons inl said cy inders, a pattern support engaged by said pistons, means for moving said pistons insaid cylinders to lift the support off the table and means for rockin the shaft to swing said support transverse y of saidtable. f

2; In a molding machine,incombination, a frame, a molding table supported' thereby, a attern support, a cylinder pivoted to said frame, a'piston in said cylinder adapted to'.l

.engage said support andiift itofl' the table and means' for swinging said cylinder relative lto said frame to move the pattern support transversely of'the 4molding' table,

'3. In a molding machine, a frame, a mold* ing table and lifting devicesinounted on said frame, a attern support ivotally connected to said iftmg devices, ockmg devices arranged .to Ilock said pattern frame against pivotal-movement relative t'o said` lifting devices in either of two positions ofsaid -support relative to said lifting devices. l

4. In a molding machine, a frame, a mold'- ing tabler and lifting devices mounted on said frame, a pattern-support pivotally engaged by said'lifting` devices, flocking devices'for locking said attern support against-pivotal movement re ative' to said lifting devices in' either of two ositions and means for moving` said lifting devices transversely of said' 5. In combination a sup-porting frame, a molding table'carried thereby, lifting devices one at eachside' of the table supported by said frame, a pattern support adapted to be engaged by said devices, means forcperating said ,devices to cause them. to engage the pattern support and lift it" off the table and means for swinging said lifting devices relative to the supporting frame to move the pattern support transversely of the molding table.

6. In a molding machine, a molding table, a pattern support', liftingme'chanism, means forcausing it to enga e the pattern support and lift it vertically o the ymolding table separate means for acting on the-lifting mechanism to cause it to move the patternv support transversely of said table.

'mechanism toy move said vmolding table, a

-port is .held above ,the table.

ed with trimnions, lifting mechanism provided with bear; sings, means for operating said lifting mech anism toy cause' said bearings to engage said trunnions and lift the framevertically oli the table, means for moving said lifting mechanism to move said support .transversely of said table, and means for locking said'pattern support against turning movement relative `to said lifting mechanism in either of two positions.l

Y9. In a molding machine, a horizontal molding table, a attern sup ort normally resting on said tab e and provi ed with trunnions, lifting mechanism provided with bear# ings means for operating said lifting mechanism 'to cause sald bearings to engage said trunnions and-lift the fra-me 'vertically off the table, means l for moving said lifting *mechanism to move said support transversely of said table, means for ocking 'said pattern support against turning movement relative to saidlifting mechanism in either of '100 two positions, a yiask and means forl detachi ably securing the flaskv to Vthe pattern 'sup port. 10. frame, a horizontal molding'table supported thereby, a` shaft journaled' in said frame, guides carried by said shaft one at each end of the table, lifting devices mounted in-said away. from the shaft, means for moving' said lifting devices in their guides, la pattern support normally resting on said table, but ada )ted to be engaged'and lifted ofi of said tabfe'by'said lifting devices and'means for rotating the shaft to move the pattern support transversely of said table.

11. Ina-moldingmachine, a supportingl frame,l a molding table supported thereby, a shaft journaled in said frame, guidescarried by said shaft, lifting devices movablein said.

guides rtoward and awayfrom said shaft and provided with trunnion bearings, a pattern support' previded with trunnions lnormally Vresting on said molding table, means 'for moving saidlifting devices in said guides to for rotating-theshaft While the patternsup-Y 142. Ina molding machine,A a supporting In amoldingniachine,'a supporting Y guides and movable, therein toward and 'i 4cause the bearings .to-engage saidL trunnions "and lift the support off the table, and' means frame, a horizontal moldingV table supported by and vertically movable with respect to said frame, a horizontal Yshaft -journaled in said frame, a pair of cylinders secured to said shaft, one at each side of said table; pistons located in said cylinders, 'a attern support normally resting on said ta le, means carried -by said pistons for engaging said supf` port, an arm secured-to said shaft, a piston inked tosaidrarm, a cylinder in which said piston is movable; Huid ress ure actuated means for jarring the tab e relative to the frame, means for admitting .fluid pressure into said c linders to cause the pistons to engage an lift the pattern support, and means for admitting iiuid pressure to said cylinder to rotate said shaft. v

13. In a molding machine, a supporting frame, a horizontal molding frame supported thereby, a shaft journaled in said frame, guides carried by said shaft one at each end of the table, lifting devices mounted in said guides and movable therein toward and away from the shaft, a attern support normally resting on said ta le, means'for moving said lifting devices in their guides, means for rotating the shaft to move the attern support transversely of said table an means for causing said lifting devices to move in unison, said means 'comprising a second shaft journaled in said frame, arms secured to said shaft and links eXtendingfrom-said arms to said lifting devices.

l WlLF/RED LEWIS.

Witnesses:

ARNOLD KATz, JOHN E. HUBBELL.

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