US2367303A - Apparatus for forming and trimming die castings - Google Patents

Description

L. H. MORIN 2,367,303 APPARATUS FOR FORMING AND TRIMMING DIE CASTINGS Filed July 25, 1940 7Sheets-Sheet 1 Jan. 16, 1945.

INVENTOR- Laws 1% Mom/v BY ,M 91

ATTORNEYs.

L. H. MORIN Jan. 16,1945,

2,367,303 APPARATUS FOR FORMING AND TRIM ING DIE CASTINGS '7 sheets-sheet z Filed July 25, 194 0 & m x Wan a 5mm 4 x w 5 :Nl w ...1 I u m I "1 m. 1 N NW WW w TW, w

\ ATTORNE .r

Jan. 16, 1945.

L. H. MORIN 2,367,303

APPARATUS FOR FORMING AND TRIMMING DIE CASTINGS Fil'edJuly 25, 1940 Sheets-Sheet s W ATTORNEYS.

7 Sheefl's-Sheet 4 Jan. 16, 1945. H. MORIN APPARATUS FOR FORMING AlfJD TRIMMING DIE CASTINGS Filed July 25, 1940 'Jan.

1945- L. H. MORIN} 2,367,303

. APPARATUS FOR FORMING AND TRIMMING DIE CASTINGS Filed July 25, 1940 7 Sheets-Shet 5 /i i I k} I: g g; in w IIJII 1.01/15 l1. Mom/v Jan. 16, 1945. H; M RI 2,367,303

APPARATUS FOR FORMING AND TRIMMING DIE CASTINGS ATTQRNE Patented Jan. 16, 1945 UNITED STATES PATENT, OFFICE APPARATUS FOR FORMING AND TRHHIWING.

DIE CASTINGS Louis H. Morin, Bronx,- N. Y., assignor, by mesne assignments, of one-half to said Louis B. Morin casting.

and one-half to Davis Marinsky, Bronx, N. Y.

Application July 25, 1940, Serial No."347,426.

2'1 Claims.

chine. In some instances these trimming operations have been multiple or even triple. The

foregoing procedure has been extremely expen- 'sive, not only from the standpoint of handling and labor costs, but from the standpoint of machine construction and problems of automatic feeding of the cast members. It is the purpose of-my present machine to form various types of intricate castings of the kind under considerafrom the following description .when taken together with the accompanying drawings, in which.

certain embodiments of the invention are disclosed and in which the separate parts are designated by suitable reference characters in each of the views and in which:

Fig. 1 is a plan .view of the machine made according to my invention with parts of the con- .struction' broken away and in section.

Fig. 2 is a partial section on the line 2--2 of Fig. 1. I

Fig. 3 is a sectional view on the broken line 3-3 of Fi .2;

Fig. 4 is aview-looking in the direction of the tion, toremove and pick up the castings from one core,- and to feed the same to a trimming position 'orstation where the casting is completely trimmed, producing a finished product, insofar'as the shape and form ofthe product is concerned, and aside from any drilling or other forming operations which may be required.

My improved machine comprises an openwork base or table I I, only part of which is illustrated.

Upon the base H is supported two upright frame wheel l5 for manually rotating the shaft. In-

members l2 and I3 in which is arranged a main drive shaft I 4, at one end of which is a hand wardly of the wheel I5 is a drive sprocket I6 Y driven by a chain from a motor not shown. A

arrow 4 of Fig. 2 on;an enlarged scale showing only a part ofthe construction and with parts broken away.

Fig. 5 is a partial section on the-line 5-5 of Fig. 1 on an enlarged scale. f

Fig. 6 is a central vertical section substantially on the line 6-6 of Fig. 2 with parts of the constructionbroken away.

Fig. 6ais an enlarged perspective view of part of the construction shown in Fig. 6.

"Fig. 6b is anenlarged sectional view-of another part of the construction shown in Fig. 6.

Fig. '7 is a diagrammatic view illustrating the transmission of air from the main control valve to the various operative parts of the machine.

Fig. 8 is a. perspective view of a slider cast in the machine and before trimming the same.

I oted to a bracket as seen at IS in Fig. 1 of the clutch i1 is keyed to the shaft l4 to place the shaft in operative engagement with the sprocket It. The clutch I1 is operated by a lever l8 pivdrawings.

Supported on the front of the vertical frames l2 and" is a face plate 20 having at its lower end an outwardly extending table portion 2|. Coupled with the face plate 20 are guides 22 for two dies .23 movable toward and from each other by forwardly and backwardly reciprocating bars 24 operated by cams 25 on the shaft l4 through levers 26 pivoted as seen at2l in Fig. 4 of the Fig. 9 is a sectiqnal view of a part of the com "struction shown in Fig. 5 on an-enlarged scale illustrating one of the trimming tools in the In the formation of intricate die castings; that is to say castings employing one or more core members, suchfor example as the slider o-f separable fasteners, it has been the common practice and procedure to first form the casting, remove or deliver the same from the machine, and then convey the same to a specially constructed triniming machine from which the castings are fed by. hopper or by hand into the trimming madrawings. The bars 24 have cam surfaces, not shown, cooperating with similar surfaces on the dies to move the dies inwardly and outwardly toward and from each other, as taught in application No. .15 2,942, filed July 10, 1937, now PatentNo. 2,244,425,- issued June 3, 1941. At the inner end of the bars 24 are plunger rods 28 with which the arms 26a of the leversare freely coupled. The plungers are movable with respect 4 to the bars 24, but the latter are driven through springs 29 so that in the event of the presencev of any-foreign material between the dies, the positive action of the levers 26,2621 will be taken up through the springs 29. It will be-understood that the dies 23 are water cooled as taught in said application, out the illustration of..the circulation of waterthro'ugh'the dies is omitted simply to clarify the present illustration.

- by a stripper plate 4|.

Adjacent abutting surfaces of the dies have impressions therein to form cast sliders 30 such as are commonly employed in coupling and um coupling the stringers of separable fasteners; One of these sliders is shown in detail in Fig. 8 of the drawings. On the parting line of the dies is a gate aperture forming a gate 3! on the casting of the general contour seen in Fig. 8 and also indicated in other figures. The gate 3| has an end portion 3 la which is shaped to receive a gripper mechanism, later ,described, in feeding the casting to the trimming stage or station as well as extension 33b of the core 33 to actuate the same;

the core being disposed in adjustable guide plates 36 arranged upon the plate 20. The shaft 34 is actuated through an arm 3'! pivoted to a clamp secured to the shaft 34 as seen at 38 and having at its lower end a .roller operating in a cam 40 driven from the shaft i4, so that in each cycle of operation of the machine the core 33 is raised and lowered. In moving the core 33 into raised position, the casting 3B is stripped from the core At the same moment, the casting is picked up by a gripper or pick-up and V carry mechanism 42, later described.

At 43 is shown the discharge nozzle a the end of a gooseneck 44 from which heated casting material is pressure injected into the cavity of the dies in forming the castings 30. In Fig. 6 of the drawings is indicated a plunger 45 operating in the gooseneck and controlling feed of casting material from the melting pot 46 into the gooseneck and the discharge of material therefrom. The

plunger carries at its upper end an adjustable link or rod 41 which in turn carries at its upper end a piston 48 operating in an air cylinder 49 to which airis supplied through a pipe 50 from an automatic control valve 5| diagrammatically illustrated in Fig. 7. Arranged in the pipe 50 is a control or check valve 52 by means of which supply of air to the cylinder 49 may be out off at will in making tests in the machine when the discharge of metal is undesirable. The plunger operating mechanism forms no direct part of the present invention and is illustrated siihply to disclosea means for pneumatically operating the plunger 45 in pressure injecting the casting material into the dies.

The gooseneck 44 is adjustably and detachably supported in a bracket 53 as seen at, the

bracket 53 being pivoted to the frames l2 and I3 by adJustable bearing pins 55,'note Fig. 2' of the drawings. A spring 56 is coupled with the cylinder 49 to support the nozzle 43 in engagement with the dies 23 under sufficient pressure during the casting operation. However, an adjustable screw.

51 is supported in connection with an arm 58 arshaft l4. Adjacent the cam 62 is another cam for actuating an arm 84, the rectangular frame end 65 of which is guided upon a square bearing 66 on the shaft. The arm 64-carries aroller t'l engaging the surface of the cam 63. This mechanism is employed to actuate the pick-up and carry mechanism 42.

, The mechanism 42 comprises a swinging frame secured to a shaft 68 supported in suitable bearings 68a arranged on the plate 20. One end of the shaft 68 has a gear segment 59 secured thereto in connection with which operates the rack end in of an arm H pivoted as seen at E2. The arm H has an extension Ha arranged in the upper yoke-shaped end of a link 73 also pivoted on the stub shaft 12. The other yoke-shaped end of the link 13 receives the lower end of the arm t6 and is pivoted thereto by a pin 14, note Figs. 2 and 4 of the drawings. The link 53 has a top cross plate 13a through which freely passes a pin 15 pivoted to the extension Ha which is forked to receive the lower end of the pin. On th pin '75 is arranged a spring I6, the function of which is to control operative engagement between the lever H and the link 13. At 11 is shown a forked coupling link arranged on the pivot l4 and to which is coupled a spring 18 anchored as seen at 19, note Fig. '4, to support the roller 61 in constant engagement with the cam 53.

Adjustably supported in the bed plate 211 of the frame of the machine is a stop screw 80 which engages the frame 42 to limit downward movement of the frame. Another adjustable screw ti is carried by the frame 42 and cooperates with a pin 82 on the plate 20 to control the positioning of the free end of the swinging frame with respect to the casting in order to accurately engage the end 3la of the gate portion thereof. Pivotally supported in the free end of the frame 42 is a gripper finger 83, to the other end of which is pivoted as seen at 84 an air operated'piston 35 for actuating the gripper finger to engage the gate end 3 la between it and a part 86 on the frame Q2. Air is supplied to the cylinder in which the piston 85 operates through a pipe 81 which extends to and communicates with a bore or passage 88 formed in the shaft 68 and to which air is supplied from a pipe 89 coupled with one end of said shaft. The air supply to pipe 89 from the conraised position as indicated in dotted lines in .several trimming operations are performed.

ranged upon a shaft 59 and cooperates with an extension 53a on the bracket in supporting the :nozzle out of pressure engagement withthe dies intermediate the casting. stages. This is controlled by a long arm 60 secured to the shaft 50 and having a roller 5| at its free end operating After this, the frame 42 is raised to the position indicated in dotted lines in Fig. 6 to bring the gate remaining in the gripper 83 in'registering position with a large discharge tube 90. At this instant, air is cut oil to release the gripper 83, and simultaneously a blast of air is discharged from a blow-off pipe ll arranged in front of the discharge tube to eject the gate into the tube, and air is supplied to the blow-oi! tube 9| from a pipe a: coupled with the valve cylinder 5| through an extension 82a. The pip 92 also has a branch 92b which extends to a lubricating oil supply device 93 through a control valve 94 so as to-supply lubricant to two feed pipes .95 and 96;- the pipe extending to the dies and cores upon the surface of a cam I2 mounted on, the n whereasthe pipe 28 extends tothe trimming tool,

later described. At 01a is another extension on the pipe 92 for supplying a blast of air atthe thereof. The dog 91 is also disposed between a plunger pin I and an adjustable screw IOI, note Fig. l. The pin I00 and screw I M are supported on an arm extension I02-on the plunger "I03 which carries the trimming tool or punch I00. The plunger operates in a suitable bearing or guide I provided on the frame 2|, note Fig. 5. The plunger I03 has an upstanding lug I03a which operates in a slot I05a in the bearing; The tool I00 is detachably supported on the plunger by screws I00'a. The plunger pin I00 provides yieldable sliding movement of the frame in advancing the casting by the punch I00 in the direction of the trimming' tools, whereas the pin IOI serves to return the swinging frame to properly alined position in the movement of the plunger I03 to withdraw the plunger I00.

Supported at the inner end of a channeled bracket I00 is a die plate I01 for trimming peripheral edges of the casting. 30 forced through 'the plate by the punch -'I00 which also trims off the gate 3I.'= Slidably mounted in the channel of the bracket I00 is a plunger casing I00 arrying at its forward end a die pad I09 for receiving the casting 30 and to support the same in alinement with a piercing tool IIO for piercing a hole 30a in the casting to trim the same. The piercing punch is adiustably supported on a coupling III on the reduced end or apiston II2 arranged in an air cylinder II3 carried by the plunger casing ma. A pipe in placestl'recylinder a in communication with the-valve through ashut-oif valve IIOa as diagrammatically illustrated in Fig. '7. The plunger casing I00 carries at one side'- thereof a lug I00a movable'on a rod. I I5 on which is arranged a spring H0; the tension'of which is adjusted by nuts II1. The"spring'serves to hold the casing I00 in position and to resist or cushion I00 is a micro adjustable screw. I I9 onthe lug I00a, which is'part of the frame I00, so that in the event of improper opcrationof thepunch I00 which would tend to move the sliding frame I00 against the action of the. spring II5, the contact of the screw I-I9 will be broken with the switch causing the machine to automatically stop. 1

Arranged upon the frame 2I is an adjustable bracket I20 which carries at its upper end a punch adapter or slide I2I supporting onits inner end erly set the position of the tool I 22. Air is admitted to the cylinder I through a pipe I21 to move the tool inwardly, and is admitted into the cylinder I20 through a pipe I20 to retract the tool. In this latter operation the trimmed cast- 1 ing is removed from the tool I22 by a stripper plate I20 and the casting is dropped through the machine into a suitable receiver. The pipes I21. I20, note Fig. 6, extend from the cylinder I23 and as illustrated in the diagrammatic view, Fig. '7, are directed to the control valve 5| which regulates the timing of the operation of the punch It will appear from a consideration of-Fig. 6

of the drawings that the cylinder I20 is mountedto swing about an axis H01: in the bracket I20 to compensate for the swinging movement of the bell crank. It will also appear from a consideration of Fig. 1 of the drawings that a hand operated lever I30 may be pivotally supported in connection with the bracket I00 to engage the sliding housing I00 to manually operate the same at will.

the action of; the punch I00 upon the workpiece a trimming punch or tool 'l22 for trimming the casting 00 when supported between the punch I00 and pad I00 as-seen in Fig. 5.- The tool I22 serves to trim the castinglongitudinally of the channel thereof, the tool I22 being operated by. a bell crank I23 engaging an aperture I2Ia in the adapter, and to the other end of which ispivoted the connecting rod I20-of a piston I20 supported in an air cylinder I20. The connection between] the rod I20 and bell crank is adjustable to Proption Figs. 3 and 7.

. viously described. At I55 Coupled with and extending from the plunger I03 is a connecting rod I3I, the end of which is adjustably and operatively supported within the forked end I32 of a follower I33 carrying a, roller I30 operating in connection with a cam I35 and an upper roller I30 operating irf connection with a cam I31. The cams-J35 and I31 serve to impart the forward and backward movement to the apparent. These cams are I30 having a beveled gear I39: meshing with a beveled gear I00 on the drive shaft plunger as will be mounted on a shaft I0, note Fig. l of the drawings. Arranged opposite to and in alinement with the shaft I38 is the rotatable valve element 5Ia' of the valve 5| which constitutes a shaft carrying at'its inner end a. beveled gear IOI also in operative engagement with the gear I00. The valve element 5la has a series of ports and passages so arranged with respect to the various pipes leading to the cylinder 5| as to automatically control the supply of air to the various appear. In Fig. pressure air. supply pipe I02 from a suitable source of controlled supply, from which a high pressure pipe line I03 passes from a lubrlcator I00 to the cylinder 5! through the pipe I05.

The valve 5Ia controls the discharge through the pipe .I I0 to the cylinder II3. A pipe I00 also leads to a control valve I01 actuated by a cam I08 on the shaft I30 in controlling the passage of air through the pipe 09 which leads to the gripper mechanism, thus controlling the operation of the gripper. A shut of! valve 09a. .isprovided in the pipe I00 to control the gripper mechanism. Another pipe I09 extends to another con-- trol'valve' I50 in controlling the supply of air. to

trolling the operation of the plunger 05 :discharging the casting material. Note in this connec- The operation of the valve I50 is controlled by a roller I5I operating upon a cam I52 adiustalbly' mounted on a sleeve extension of thecam 00. as indicated in-Figs l. 2 and 3 and diagrammatically n Fig. 7. At I53 is shown a blow-off line leading fr m the hi h pressure inlet controlled by a: shutoff valve I5 nnte Fig. '7. which enters the valve casing 5I,' the valve 5Ia of'which controlling di char e throu' h the pipe 92a which leads to the pipes 92 and 92b for supp ying the blast of air through the pipes 9'. 9Ia and/also for the sup-. ply of lubricant to the pipes 95 and 90,-as pre- Is a low pressure air distributing points as will readily 7 of the drawings is shown a high supply from a suitably controlled and regulated source, not shown, which extends to a valve I56 supplying air to the valve cylinder 5I through pipes I51 and I58, note Fig. 7. The valve 5Ia controls the passage of air from the pipe I51 to the pipe I21 for supply to the cylinder I26, whereas the valve 5Ia controls the transmission of air from the pipe I56 to the pipe I28, also directed to said cylinder. At I59 and I60 are shown exhaust pipes from the cylinder 5! to exhaust the air from the cylinder I26 to a mufller casing IBM, in the different operations thereof, and another exhaust pipe IBOb-also extends to said casing; whereas suitable exhausts will be provided for the other air lines as will be apparent.

Coupled with one of the bars 24, note Fig. 4, is a rod I6I carrying at its inner end an adjustable collar I62. A switch lever I63 is pivoted as seen at I64 and engages the collar I62 as well as a collar I65 on another rod I66. The rod IE6 is pivoted to the plunger 28 movable relatively to the bar 24 to which the rod I6I is pivoted. This construction serves to control the operation of the switch lever I63 to actuate a micro switch IE! to automatically stop the machine in the event of the presence of any foreign material between the dies or improper closure thereof which will set up a differential movement between the rods IN and I66. At I68 is shown a stop screw which limits the movement of the lever in the direction of the switch so as to prevent any strain on the switch which is highly sensitive. At I69 is shown a cam lever for manually throwing the dies into opemposition, as is taught in the application hereinbefore referred to.

Arranged upon an upstanding post I10 on the right front side of the machine is a swinging frame I1 I, note Figs. 1 and '5, supporting a transparent panel of non-breakable material I12 to be positioned in front of the dies during the casting operations of the machine, the frame being held in this position by a pin I13 operating in a socket may be supported in this other position by the pin I Slidably supported in the adjustable bottom stop screw 80 is a pin I14 having a cross pin I15 near the upper end thereof which normally seats in a slotted portion 80a of the screw in maintaining the pin I14 in depressed position. By raising the pin I14 and turning the same 90 the cross pin I5 may he dropped into recesses 80b in the upper surface of the screw 80 so as to support the pin end above the screw to limit downward movement of the swinging frame, and in fact to prevent the casting from coming in alinement with the trimming tools. Thus atany time a casting with the gate thereon may be removed from the machine for inspection or any other purpose. At I16 is shown a long operating lever which is coupled with the lever I8 and extendsto the right side of the machine and is provided with a hand grip II6a whereby the clutch may be oper ed at the right side of the machine as well as t e left side. thereof as will be-apparent.

In Fig. 1 of the drawings is diagrammatically illustrated at II'I a housing containing an automatic throwout mechanism, the structure of which forms-no direct part of the invention, and for this reason no specific description thereof is given except to illustrate that the cam 40 is driven from the shaft I4 through this clutch mechanismso that in the e'vent of the downward movegages the part 3Ia of the gate.

has completed its upward movement, the swingthe shaft H4 and the cam. In view of the fact of my machine will be readily understood when taken in connection with the accompanying drawings and the following statement in which the operation is briefly reviewed. Starting the cycle of operation from the point where the dies are closed with the upper core 33 in its lowermost position and between the dies, the nozzle 43 makes firm contact with the dies through the action of the cam 62 and spring 56. The cam I52 then operates th valve I50 whichin turn operates the plunger 45 and a charge of casting material is pressure injected into the die cavities and around the cores 32 and 33. The dies are then opened and the core 33 moves upwardly carrying the casting with it because of greater surface engagement with the casting. During this operation the swinging frame or carrier 63 moves from the trimming stage to the dotted line position indicated in Fig. 6 in alinement with the discharge tube 90, and then after a short rest continues to swing upwardly while the core is in its upward movement. The gripper of the frame or carrier is opened as it approaches the casting supported in connection with the core. and timely, upon the stripping of the casting from the core by the stripper plate 4! the gripper en- After the core ing frame or carrier is then swung downwardly carrying with it the casting supported in the gripper until it reaches the trimming stage where it is supported by the stop screw 80. While supported in the trimming position, the punch I04 moves in the direction of the casting and forces it through the die plate I01 into the position shown' in Fig. 5, trimming the gate portion from the casting-in this operation and otherwise trimming flared metal at peripheral edges of the casting. During this operation, the piercing tool .IIO is moved in the direction'of the casting and of the drawings; the web portion being trimmed by the recessed part I22a of the tool as illustrated in Fig. 9 and also seen in Fig. 6 of the drawings. After this, the tool I22 moves outwardly carrying with it the'casting held on the tool I22 which is stripped by the plate I29 from the tool as this outward movement continues and drops into a suitable receptacle, not shown, which will be provided in the machine.

- It will be understood that during the last mentipned trimming operation, upon a casting another casting'is being formed in the dies which have been moved into and firmly held in closed position, and the swinging frame or carrier 42 is moved from the trimming stage shown in full lines in Fig. 6, to the dotted line position shown in said figure, carrying with it the gate, and is held for a short period of time in the dottedline position. When in this position, the-valve hr will release the air to'discharge a blast from the trimmed particles, and the suppl of lubricant to pipe 9|, and simultaneously the valve 1 is acing engaging or gripping position as previously described. This complete cycle of operation is -repeated in forming automatically a successive series of castings, It will appear that by performingthe trimming operations on one previouslyformed casting slmultaneouslyduring the formation of the next successive casting, no re- .tardlng in the production of the machine is experienced. This is made possible by using the casting pick-up and carrier member which can be performing its functions while the dies and core and other mechanisms relative to the production of castings are performing their operations. This construction and method of procedure will maintain a speed of casting which is limited solely by the capacit of a machine for producing die castings of a given type and kind.

It will of course be apparent that the illustration of the invention is applicable to the formation of a specific type and kind of casting and is simply illustrative of' one method of carrying theinvention into effect. The machine may be.

utilized to cast and simultaneously trim the castings of any type and kind so as to produce finished merchandise insofar as the castings are concerned, aside from any other operations, such as plating operations, which may be performed means movablebetween the casting on said core thereon. It will be understood that a machine of this type and kind will effecta material saving in the production of die-castingsby eliminating the several trimming operations which are usually performed in separate machines as well as the handling of the castings in conveying the same from-one machine to another.

It will be understood that the present machine shows the adaptation of my invention informing metallic die castings. However, it will be apparent that insofar as the automatic trimming operationsare concerned, these are applicable toa die casting machines producing non-metallicor thermoplastic castings, as will be apparent. It will be understood that the various airlines have beenomitted from the several-views and 'I in ,order' to simplify the disclosure. In other instances various parts of the machine are omit-v ted, again for .the purpose of simplifying the illustration. It will be apparent that by providing the various. air actuated mechanisms or devices,

iquick or responsive operations of these-mechanisms can be performed. in a relativel simple manner, and by this is meant that many wearing parts are dispensed" with. Furthermore, the

employment of-air provides many desirable functions, such for example asthe discharge of the gate, the clearing of the trimming: tools of certain parts of themachine. It will also appear that by reason of the construction of the machine, substitute die parts or tools may be readily inserted in the machine suitable for forming and trimming castings of different types and kinds; the limitations of which are solely within the capacity or size of any machine. It will be further apparent, however, that the machine may be constructed in sizes to adapt itself to the pro-' duction of castings of any kind or class wherein it would be practical to form and trim the casting;

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

1. In a die casting and casting trimming ma- I chine, relatively movable dies with a mold cavity formed between abutting surfaces of the dies into which casting material is pressure injected at the parting line of the dies, a core extending into the mold cavity on the parting line of the dies and upon which the casting is formed, means moving the core relatively to the dies when separated to move the casting formed thereon out of the path of movement of said dies; a trimming station disposed in spaced relation to said dies, means mov-' able between the casting on said core and, said .station for transmitting the casting, fromv the core to said station, means for freeing the casting from the core, and means on said second named means engaging the casting when freed from said core to convey the same to said trimming station in the movement of said secondnamed means.

2. In a die casting and casting trimming machine, relatively movable dies with a mold cavity formed betweenv abutting surfaces of the dies into and said station for transmitting the casting from the core to said station, means for freeing the casting from the core, means on said second named means engaging the casting whenfreed from said core to convey the same to said trimming station in the movement of said second named means, a plurality of trimming tools at said station operatively engaging the casting; in completely trimming the same, and one of said tools including means to deliver the trimmed.

1 movable dies having a cavity on abutting surfaces of the 'dies, a core arranged on the parting shown in the diagrammatic arrangement in Fig. line of the dies and extending into Said c y, I

means pressure injecting casting material into the die cavity on the parting line thereof to form a casting on said core including a gate portion, a trimming station arranged in spaced relation to saiddies, a carrier movable between said dies and the trimming station, means for freeing the casting from said core upon the separation of said dies, means onsaidfcarrier engaging the gate portion of said casting simultaneously upon removal from said coreto pick up and carry the casting into predetermined position in the trim-- ming-station in' the swin n movement of said core and conveying carrier, and means at the trimming station operatively engaging the casting to remove the same from the gate and to trim the same and to eject the trimmed casting from the machine.

4. A machine for forming and trimming die castings, said machine comprising relatively movable dies having a cavity on abutting surfaces of the dies, a core arranged on the parting line of the dies and extendin into said cavity, means pressure injecting casting material into the die cavity on the parting line thereof to form a casting on said core including a gate portion, a trimming station arranged in spaced relation to said dies, a carrier movable between said dies and the trimming station, means ior freeing the casting from said core upon the separation of said dies, means on said carrier engaging the gate portion of said casting simultaneously upon removal from said core to pick up and carry the casting into predetermined position in the trimming station in the swinging movement of said carrier, means at the trimming station operatively engaging the casting to remove the same from the gate and to trim the same and to eject the trimmedcasting from the machine, said carrier supporting the gate after the casting is removed therefrom, and means intermediate the dies and trimming station for ejecting the gate from the machine while momentarily supporting the carrier in stationary position.

5. In a combination die. casting and trimming machine-a casting station and a trimming sta tion arranged in spaced relation to said casting station, means comprising dies and a core at the casting station for forming a die casting on a a core, means operating the core upon separation of the dies at said casting station to remove the casting from the core, a conveyor member automatically movable between said stations, an automatically actuated gripper on saidmember gripping the casting in the removal thereof from said core and conveying the casting to the trimming station, means alining said member to properly position the casting in said trimming station, and means at the trimming station for completely able between said stations, a gripper mechanism on said member, means delivering a formed casting at the casting station to the gripper of said member whereby the casting may be conveyed by said member to the trimming station, and means at the trimming station for removing the die casting from said member and for trimming the same to produce a completely trimmed casting delivered from the machine.

8. In a combination die casting and trimming machine employing spaced casting and trimming stations, a swingable carrier automatically movable between said stations, a gripper mechanism on said member, means delivering a formed casting at the casting station to the gripper of said member whereby the casting may be conveyed by said member to the trimming station, means at the trimming station for removing the die casting from said member and for trimming the same to produce a completely trimmed casting delivered from the machine, said gripper supporting a gate portion of the casting after initial trimming thereof, and means automatically releasing and dispensing the gate portion from said member.

9. In a die casting and trimming machine of the class described employing a casting station and a trimming station arranged in spaced relation to the casting station, means for conveying a casting formed at the casting station to said trimming station, said trimming station comprising aplurality of trimming tools, at least one of said trimming tools being air operated, and

' said air operated tool including means for removtrir'nming the casting and for ejecting the same from the machine.

6. In a combination die casting. and trimming machine, a casting station and a trimming station arranged in spaced relation to said casting station, means comprising dies and a core at the casting station for forming a die casting on a core, means operating the core upon separation 6f the dies at said casting station to remove the casting from the core, a conveyor member automatically movable between said stations, an automatically actuated gripper on said member gripping the casting in the removal thereof from said the casting to the trimming station, means 'alining said member to properly means at the trimming station for completely trimming the casting and for ejecting the same from the machine, the casting station including means forming a gate on the casting, said grip.- perengaging the gate portion of the casting whereby in trimming said casting the gate remains on said member, means for supporting the member in stationary position interm'ediatesaid stations, and means whereby in the said stationary position of said member said gate will be released Irom the gripper and discharged from the machine.

'Z. In a combination die casting and trimming machine employing spaced casting and trimming ing the trimmed casting from the machine.

10. In die casting and trimming machines of the class described, means to form a casting, an automatically actuated trimming mechanism for trimming castings formed in the machine, means for conveying a casting formed in the machine to being air operated in both directions, said last named tool moving the casting out or alinement with the punch, and means stripping the casting from said tool to deliver the finished trimmed casting irom the machine.

11-. In die casting and trimming machines of the class described, means to form' a casting, an

' automatically actuated trimming mechanism for position the casting in said trimming station,

another trimming tool transversing the casting at right angles -'to said punch, said last-named tool being air operated in both directions, said last named tool moving the casting out of alinement with the punch, means stripping the castbeing air operated in both directions, said last named tool moving the casting out of alinement with the punch, means stripping the casting (rom said tool to deliver thefinished trimmed casting from the machine, said trimming mechanism including' an air actuated piercing tool arranged in axial alinement with said punch, and an automatically actuated micro switch forming part or the trimming mechanism for automatically stopping the machine upon improper operation of said trimming mechanism. 7

13.- In a machine or the character described, a workpiece forming station and a workpiece trimming station, a pick-up and carry member movable between said stations, said member having an automatically-actuated gripper for engaging a formed workpiece at the forming station and conveying the same to and alining the same in the trimming station, and means at the trimming station completely trimming the workpieceand delivering the same from the machine.-

14. A combination die, casting and trimming machine comprising a casting station having air actuated means for pressure injecting casting material into diesin torminga die casting, a trimming station having a plurality of trimming tools,

asezaoa 7 air to the trimming station to remove trimmed particles therefrom.' I

17. In a die casting and casting trimming ma- I chine, means for forming a casting, means for trimming the casting formed by the first named means, a member associated with the first named means and upon which the casting is formed,"

a pick-up and carry mechanism movable back and forth intermediate the casting means and the trimming means,. a gripper on said mechanism, means for removing the casting from said member and for simultaneously actuating the gripper ofsaid mechanism to pick up the castin and to convey the same to the trimming means, means for actuating said trimming means to completely trim the die cast product supported in said gripper and to deliver the product from the machine.

18. In a die casting and casting trimming machine, means for forming a casting, means for trimming the casting formed by the first named means, a member associated with the first namedgripper of said mechanism to pick up the casting and to convey the same to the trimming means, means for actuating said trimming means to completely trim the die cast product supported in said gripper and to deliver the product from the machine, the remainder of the casting commember to pick up andcarry the casting to and supporting the same in the casting station, and automatically actuated valves controlling the timely supply of air in controlling the operation of the several air actuated mechanisms.

-15. A combination die casting and trimming machine comprising a casting station having air actuated means for pressure injecting casting material into dies informing a die casting, a

trimming station having a plurality of trimming tools, air actuated means for operating at least two of said tools, a member movable between said stations conveying a formed casting to the trimming station, an air actuated gripper on said member to pick up and carry the casting to and supporting thesame in the casting station, automaticallyactuated valves controlling the timely trimming station, an air actuated gripper on 1% at least said member to pick up and carry the casting to and supporting the same in the casting station, automatically actuated valves controlling the timely supply of air in controlling the opera ,tion of the several air actuated mechanisms,

means controlled by one of said valves for supplying air discharged lubricant to the casting and I trimming stations, and -for supplying a blast of l l f means dor forming a casting and for releasing a prising a gate portion being retained in the gripper after the actuation of said trimming means, and means for removing the gate from the machine simultaneously upon releasing the gripper from said. gate.

19. In a die casting and casting trimming ma chine, means for forming a casting on a member, said casting comprising a gate part and a product part, means for removing the casting from said member, means automatically'picking up the removed casting and conveying the same to said trimming means, means, whereby the operation of said trimming means will remove a trimmed'product from the gate part of said casting leaving one of said parts disposed on said pick-up and conveyor means, and means for automatically removing the last mentioned part from said pick-up and conveyor means. p

20. In a die casting and casting trimming ma- ,chine, means for forming a casting on a member, said casting comprising a, gate part and a- -product part, means for-removing the castingv from said member, means automatically picking upthe removed casting and conveying the same to said trimming means, means whereby the operation of said trimming means will remove a trimmed product from the gate part of said casting leaving one of said parts disposed on said pick-up and conveyor means, means for automatically removing the last mentioned part from said pick-u and conveyor means, and automatically actuated switch devices in operative engagement with the casting means, and said trimming means controlling the operation of the machine. 7

21. In a die casting and casting trimming machine, two stations arranged-in spaced relation I to each other in the machine, one station having formed casting, the otherv station having a plurality of tools for operating upon a formed cast- 22. In a die casting and casting trimming machine, two stations arranged in spaced relation to each other in the machine, one station having means for forming a casting and for releasing a formed casting, the other station having a plurality of tools for operating upon a formed casting, pick-up and carry means for engaging a casting released at the first named station and conveying said casting from the casting station to the tools of said second named station, means actuating the tools of said second named station in. producing a trimmed and finished product of the casting delivered to said station by said pickup and carry means, said pick-up and carry means supporting the casting in position to be engaged by at least one of said tools, and means supporting the casting in position to be engaged by other of said tools.

23. In a die casting and casting trimming machine, a casting station, a tool station arranged in spaced relation to the casting station, conveyor means movable between said stations, means at the casting station to form a cast body having a part in predetermined position with respect to the product portion on said body, means for releasing the cast body at the casting station, and said conveyor means having means engaging said part of the cast'body when released in moving the cast body from the casting station to the tool station.

24. In a die casting and casting trimming machine, a casting station, a trimming station, means ior moving a, cast body formed at the casting station' to the trimming station, means at the casting station to form on a cast body a part arranged in predetermined fixed position thereon spaced with respect to a product portion of the cast body, means for releasing the cast body at the casting station, and said part forming means adapted to be engaged by said first named means in moving the released cast,

body from the casting station to said trimming station.

25. In a die casting and casting trimming ma chine, a casting station, means having a gripper for engaging and moving a casting from the casting station to a predetermined trimming .position spaced with respect to said station, means at the casting station for moving a formed casting into gripper receiving position, and means releasing the casting from the last named means when engaged by the gripper of the first named means.

26. In a die casting and casting trimming machine, a casting station, two other stations spaced with respect to' each other and to said casting station, means for freeing a cast body at said casting station, means for picking up and conveying said body from the casting station successivelyto both of the other stations and intermittently supporting the cast body in predetermined position at said stations, at least one of said stations having tools operating upon the cast body in performing predetermined operations thereon.

' 27. In a die casting and casting trimming machine, a casting station, 'two' other stations spaced with respect to each other and to said casting station, means at the casting station for moving a cast-body into released position, means picking up the released body to convey the same I fromthe casting station successively to both of the other stations and intermittently supporting the cast body in predetermined position at said stations, at-least one of said stations having tools operating upon the. cast body in performing predetermined operations thereon in forming a finished product, and means for removing the.

remainder of said body at the other of said stations. v

' LOUIS H. MORIN.

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