US2285680A - Plate casting, finishing, and cooling machine - Google Patents

Description

June 9, 1942. o. c. ROESEN PLR'IE CASTING, FINISHING, AND COOLING'MAGHINE Filed Dec. 26, 1940 '7 Sheets-Sheet l June 9, 1942. o. c. ROESEN AND COOLING MACHINE PLATE CASTING, FINISHI'NG Filed Dec. 26, 1940 7 Sheets-Sheet 2 June 9, 1942. o. c. ROESEN 2,285,680

PLATE CASTING, FINISHING, AND COOLING MACHINE Filed Dec. 26, 1940 '7 Sheets-Sheet 3 June 9, 1942.

o. c. RNOESEN PLATE CASTING, FINISHING, AND COOLING MACHINE Filed Dec. 26, '1940 7 Sheets-Sheet 4 June 9,1942. o. c. ROESEN 2,285,680

PLATE CASTING, FINISHING, AND COOLING MACHINE Filed Dec. 26, 1940 7 Sheets-Sheet 5 wil /4,;

' HHIIIIIIIII g O. C. Poewep June 9, 1942. o. c. ROESEN 2 ,6

PLATE CASTING, FINISHING, AND COOLING MACHINE 7 Sheets-Sheet 6 Filed'Dec. 26, 1940 OLTFOa/ep I q June 9, 1942. o, c oEs H 2,285,680

PLATE C'ASTING, FINISHING, AND COOLING MACHINE Filed Dec. 26, 1940 '7 Sheets-Sheet '7 Patented June 9, 1942 l UNlTED STATES PATENT OFFICE PLATE CASTING, FINISHING, AND COOLING MACHINE Application December 26, 1940, Serial No. 371,816

Wood Newspaper Claims.

The following description relates to an invention in a machine for automatically casting and finishing stereotype plates. More specifically it provides for performing the successive operations of casting the plate in the mold, removing it from the mold and matrix, and finishing the plate by successively shaving the excess metal from the inner concave surface, trimming off the riser or tail of the casting and disposing of the same and ultimately delivering the finished plate in cooled condition. While each of the above operations has previously been done mechanically, the arrangement of such machines for successive cyclical operation and powered from a common motor is a distinct advance over prior practice.

One of the objects of my invention is to provide improved casting means by which the parts of the mold are held in locked position during the casting operation following which the back of the mold is separated from the cast plate and the latter is then placed upon a gravity runway in such manner that it is stripped from the core and caused to travel by gravity into position to be finished.

A further object of the invention is to provide timed mechanism which will receive the freshly cast plate and position it in the finishing arch, effect the shaving and trimming operations in timed sequence and dispose of the tail separately from the finished plate.

Among the objects of my invention is to provide for successively stopping the plate in the several stations in which operations are performed and to follow each of those operations with automatic release of the plate for further travel.

One of the objects of my invention is to render automatic and mechanical, the movement of the plate from the time it is cast to the moment of delivery and to carry out the several steps of the operation without the necessity of attention by the operator.

Incidental to the carrying out of this invention, I have provided means consisting of the controlling mechanism by which the several operations are carried out in timed sequence.

An additional object of this invention has been to provide a common source of motive power by which each of the several devices are caused to function in the desired manner and in the appropriate sequence.

As exemplifying the preferred means for carrying out the purposes of the invention above set out and such other purposes as may appear, I

have shown in the accompanying drawings one embodiment of the invention. In these drawings Fig. 1 is a side elevation of the first part of the machine showing the means for casting the stereotype plate, stripping it from the matrix and then from the core;

Fig. 2 is a side elevation of the subsequent part of the machine where the plate is delivered by gravity, shaved, the tail trimmed off and delivered separately from the plate and the latter then cooled and released;

Fig. 3 is a top plan view of the first mentioned part of the machine; 7

Fig. 4 is a top plan view of the second mentioned part of the machine;

Fig. 5 is a side elevation partly in section of the first part'of the machine positioned while delivering the plate from the core to the gravity runway;

Fig. 6 is a plan view of the casting box and core;

Fig. 7 is a vertical longitudinal section of the shaving, trimming and tail delivery means;

Fig. 8 is an end elevation of the line 88 of Fig. '1 showing the tripping mechanism for the tail delivery;

Fig. 9 is a vertical section along the longitudinal axis of the machine showing the trimming mechanism with its associated stop means and Fig. 10 is a vertical elevation on the line I 0-40 of Fig. 2 showing the power gearing in greater detail.

Broadly speaking, the invention comprises the correlated arrangement and operation of pouring or casting the plate, its delivery to a gravity runway with successive stops for finishing and cooling, and with means between the last two stations for diverting and delivering separately the surplus tail of the cast plate. The main frame ll of the machine is provided on each side with a ribbed track l2 generally horizontal and running inward from the front end of the machine. This provides a track for the parts of the casting box;l3. The latter comprises a mold M in which the appropriate matrix or fiong is carried. Each side of the mold l4 carries a bracket l5 having a horizontally extending arm l6. On each bracket l5 there is journaled a wheel l'l. wheel has a V-shaped periphery fitting the ribbed track l2 upon which it rolls. of the arm l6 carries an adjustable eccentric stud l8. This stud forms a bearing for the roller I9. The latter is guided between the opposing tracks 29, 2| on the inner side wall of the main frame I I.

The upper portion of thebracket l5 has a This The forward end downwardly extending track 22 for co-operation with a core locking mechanism.

Outwardly on each side of the casting box I3 and the main frame II, there is a side shield 23 shown in Fig. 1. This side shield has a stud 24 which forms a pivot for a bell crank lever 25. This lever at one end has a roller 26 which is carried in the track 22. The opposite end of the lever is made in the form of a hook 21 which co-operates with a part of the core to lock the latter in casting position. The side shield 23 has an inwardly extending track 28 controlling the travel of the wheel II on the track I2.

The core 29 is mounted upon a bracket 39. On each side of the core is a pin 3| which is received in the locking hook 21 in the assembling movement of the casting box.

The core has a backwardly directed extension 32 which forms a stop for the tilting movement of the core.

The core itself is supported on a pair of rollers 33, one on each side and traveling on the ribbed track I2.

In the casting position, the lower end of core 29 rests upon a spring-seated support 34 which has a lower stop ring 35. This support swings on stud 36 located on bracket 31 which in turn rests upon a cross beam 38 of the main frame. The exact height desired for the support 34 is obtained by the adjusting screw 39. 49 serves to cushion the support in its downward movement. 4

The power for operating this casting box is derived from motor 4I. The motor shaft carries a pinion 42 which drives a ring gear 43. gear is on a shaft 44. The shaft 44 has a worm 45 in mesh with a gear 49. This gear is on the end of shaft 41. As shown in Fig. 10 this shaft also has a worm 48. The worm 48 delivers power to gear 49, the shaft 50 of which has a beveled gear 5I. A similar beveled gear 52 drives its shaft 53 and applies power to the rotary cam 54.

A rock shaft 55 journaled in the frame (Fig. 3) has a crank 56 at one end. This crank travels in the cam track in the cam 54, thu causing the shaft 55 to oscillate. A rock arm 51 fixed on shaft 55 terminates in a gear sector 59. A shaft 59 also journaled in the opposite sides of the main frame II carries a gear 69. This gear 69 meshes with the gear 58 on the rock arm 51. In this way shaft 59 is given a limited rotation in one or the other direction by the rocking gear 58.

At opposite ends of the shaft 59 crank 6|, 6| are provided. Links 62 connect these cranks 5 I, 6| with pivots B3 on opposite sides of the casting box I3.

It will be evident that as the cam 54 rocks shaft 55 the latter by means of its gear 58 will throw the cranks SI, SI back and forth thus reciprocating the casting box I3 on the tracks I2, I2. This movement retracts the casting box and serves to separate the cast plate from the matrix as soon as the core has been unlocked.

The movement of the core 29 with the cast plate P is first to the left of Fig. 5 and then in a tilting direction bringing the core beyond the horizontal position with the plate stripped'from it and resting upon the rollers I9 of the inclined runway (Fig. 5). To effect this movement shaft 59 is also provided with a Genev motion 64 comprising a locking disk 95, lever 66 and pin 61. This device will of course oscillate when the shaft 59 is rotated by the gear 69. A stub shaft 58 extends inwardly from one side wall of frame The spring This II slightly below the shaft 59. This stub shaft has fixed upon it a Geneva wheel which fits the locking disk 65 and receives pin 67. Motion given stub shaft 58 by the Geneva wheel 99 is imparted to rock arm I9. This in turn is connected by link II to a rock arm I2. Rock arm 12 is fixed on rock shaft I3. A long arm I4 is also fixed to rock shaft I3 and is connected at its opposite end by means of link 15 to the upperportion of the core 29.

The lower end of the bracket 39 which forms the back of the core, has pivoted thereto a pair of struts 15, IS. The opposite ends of the struts are journaled on stud 'I'I extending inwardly from the sides of the frame II. A stop 79 is provided on the nearer side of the frame II to engage the extension 32 on the core 29 and thus limit its movement.

In the operation of the mechanism above described the core will move from the vertical position as shown in Fig. 1 to the inclined position shown in Fig. 5. During this retracting and tilt ing movement the cast plate P will strike the roller 79 of the inclined runway before the extension 52 strikes the stop I8. As a consequence the plate P will be stripped from the core and will slide down the runway by gravity.

The features of construction of the casting box I3 including mold I4 and core 29 are similar to those described in prior Patents 1,009,272 and 1,433,555 to which reference is made for further details.

Provision is made for automatic pouring of the stereotype metal to the casting box at the initial stage of the cycle. This mechanism includes a tank 89 in which the molten metal remains until lifted through the lift pump 8i. The plunger rod 82 of the pump is operated by means of a rock shaft 83 supported on a bracket 84. One arm 85 of the rock shaft 83 has an adjusting means 96 by which the throw of the pump plunger 82 may be varied.

A rod 81 connects the adjusted arm with one end of a bell crank 88. This bell crank is pivoted on a bracket 89 mounted in turn upon the outside of the frame II. The second end of the bell crank 88 carries a roller 99 which travels within the groove of the rotary cam 9 I. The cam 9| is mounted upon the shaft 53 outside of the cam 54.

The relation of the cam 9I- to the cam 54 is such that the charge of molten metal is lifted by the pump plunger 82 and driven through the pipe 92 for delivery to the casting box while the latter is in locked position as shown in Fig. 1.

The retraction of the mold I4, and the tilting of the core 29 and cast plate P into the position shown in Fig. 5 follows as soon as the cast plate P has solidified. When the plate P rolls beyond the core 29, the latter is returned to the casting position shown in Fig. 1, and immediately receives another charge of molten metal. In this way, since the plate is cast as soon as the parts of the casting box I3 are locked, suflicient time will elapse for solidification before the casting box is unlocked and the core 29 and plate P delivered to the runway.

As the plate rolls down the runway it passes over the shield 93 and into the shaving arch 94. It is there brought to a stationary position by means of a stop 95 engaging a tongue on the plate P (Fig. 7).

Simultaneously with the stopping of the plate, it is lifted by a section 95 of the runway so that the plate fits against the shaving arch 94 as keyed to a rotary sleeve 98 suitably journaled at 09, 99 in the frame. The sleeve carries the customary shaving blade or knife I and in spaced relation thereto is a mounting I 0| for the rotary saw I02.

The lower end of the sleeve has a rotary cam I03 with a cutaway portion I04.

The lower portion of the stop plate 95 carries a roller I opposite the cam I03. A compression spring I06 holds the stop plate 95 in elevated position with the roller I05 against the cam I03. Thus the stop 95 is held down in inoperative position until such time as the roller I05 is lifted into the cutaway portion I04. At this moment the stop plate 95 arrests the plate P and allows it to be lifted against the shaving arch and to be operated upon the shaving knife I00 and the rotary saw I02. Before the saw has completed its travel against the plate, the stop will have been retracted by the larger diameter of the cam I03 and the tail T of the plate will then be free to continue down the runway.

The sleeve 98 is hollow for the greater portion of its length as shown in Fig. 7. The shaft I01 is journaled axially of the sleeve and at its upper end has a keyed gear I08. This gear is in contact with the gear wheel 43 (Fig. and thus receives relatively rapid rotation.

The lower end of the shaft I01 carries the gear I09. An idle gear IIO on shaft III transmits power from gear I09 to pinion I I2 in the mounting IIlI. Pinion H2 is on a shaft H3 and this latter at its outer end carries the rotary saw I02.

At its lower end beyond the bearing 99, sleeve 98 has a gear H4 and this in turn meshes with gear I I5 on shaft H5 in the bearing 99. Shaft H5 is extended to carry a rotary cam III.

A short section I I8 of the runway is pivoted to the frame at H9 (Fig. 8). Part of this section carries a transverse bar I and an elevated roller I2'I. This roller rests upon cam III. In this way the section I I3 of the runway is dropped around the pivot H9 in the manner indicated in Figs. '7 and 8 to permit the tail T of the casting to go down the chute I22. This excess material may then be remelted for subsequent use.

As soon as the tail T has been disposed of, the cam I II restores the section II8 to its normal position and provides for transferring the plate P in trimmed and shaved condition to the cooling stand I23,

A stop I24 is provided across the lower end of the cooling stand. The stop is connected by a link I25 to a lever I25. This lever is pivoted on a portion of the frame as shown in Fig. 2 and normally rests against the cam I21 (Figs. 2, 7 and 9). It will be evident that a single rotation of the cam shaft II6 will release a cooled plate and divert a tail section, thus providing for the cooling stand I23 to receive for cooling the last plate just finished.

The interval of operations of the several cooperating features of the invention have been separately described and explained above. The

advantage of this machine is that it receives power from the common motor M and by means of appropriate gearing carries out the several functions in the desired order. Thus as soon as the cam 54 has locked the casting box, a charge of molten metal is automatically delivered to the casting box. The cast stereotype plate remains in the mold until solidified when the casting box is mechanically broken open by the retraction of the mold I4 and the tilting of the core over upon the runway.

The core is lowered to a point below that at which the plate rests upon the runway thus causing the separation of the plate from the core. The plate travels by the force of gravity alone into the shaving arch where it is then stopped, lifted into position against the arch and finished first by shaving andsubsequently by trimmmg.

On mechanical release from the shaving arch at the conclusion of these operations the plate travels by gravity to the cooling stand.

Prior to delivery of the plate to the cooling stand, the severedtail will have been diverted to its delivery chute and a cooled plate removed from the cooling stand to make room for the one being delivered.

The operation of these several devices in timed sequence provides for rapid, efficient and economical operation of casting stereotype plates. The conjoint use of the devices above described permits variation in arrangements, proportions and details within the scope of my invention as defined in the following claims.

What I claim is:

1. In a stereotype plate making machine, an inclined runway having an upper receiving end, a lower delivery end and an intermediate portion, a two-part casting mold, a pouring device therefor, means for transferring a mold part to the receiving end of the runway and separating the cast plate for travel by gravity over the runway, movable means to stop the plate in the intermediate portion of the runway, separate means for finishing said plate by successively shaving the concave face of the plate and severing one end thereof, means to divert the severed end of the plate from the runway, movable means to stop the plate in the lower delivery end of the runway, a power source and mechanism for delivering power from said source in timed sequence to said pouring device, core-transferring means, plate finishing means, end diverting means and movable stop means.

2. In a stereotype plate making machine, an inclined runway having an upper receiving end, a lower delivery end and an intermediate portion, a two-part casting mold, a pouring device therefor, means for transferring a mold part to the receiving end of the runway and separating the cast plate for travel by gravity over the runway, movable means to stop the plate in the intermediate portion of the runway, separate means for finishing said plate by successively shaving the concave face of the plate and severing one end thereof, means to divert the severed end of the plate from the runway, movable means to stop the plate in the lower delivery end of the runway, a power source and a rotary cam device driven by said power source for operating said pouring device, core-transferring means, plate finishing means, end diverting means and movable stop means in timed sequence.

3. In a stereotype plate making machine, an inclined runway having an upper receiving end,

a lower delivery end and an intermediate portion, a motor, a drive shaft operated by said motor, a two-part casting mold, a pouringdevice, means actuated by said drive shaft for operating the pouring device, means actuated by said drive shaft for unlocking the mold and tilting the mold core and cast plate onto the receiving end'of the runway, means for stopping the plate and positioning it in the intermediate portion of the runway, finishing means driven from said shaft for successively shaving and. trimming the plate, and means operated by said finishing means for diverting the severed end of the plate from the runway.

4. In a stereotype plate making machine,an inclined runway, a motor, a drive shaft operated by the motor, a two-part castingmold, a pouring device, means actuated by said drive shaft for operating the pouring device, locking means for the mold and mold core in their proximate positions, means actuated by the shaft for reciprocating the mold, and separate means actuated by the shaft for retracting the mold core, and tilting it past the runway.

5. In a stereotype plate making machine, an inclined runway, a motor, a drive shaft operated by the motor, a two-part casting mold, a rock shaft, means connecting the rock shaft to'the drive shaft for oscillating movement, means actuated by the rock shaft for reciprocating the mold proper, a Geneva movement actuated by the rock shaft, and means connected with the Geneva movement for tilting the mold core past the runway.

6. In a stereotype plate making machine, an inclined runway, a motor, a drive shaft operated by the motor, a two-part casting mold, a rock shaft, means connecting the rock shaft to the drive shaft for oscillating movement, means actuated by the rock shaft for reciprocating the mold proper, a Geneva movement actuated by the rock shaft, rock arms supporting the mold core, and a link connecting one of said rock arms to the Geneva mechanism to tilt the mold core past the runway.

'7. In a stereotype plate making machine, an inclined runway, a motor, a two-part casting mold, a pouring device therefor, means operated by said motor for operating said pouring device and transferring a mold part to the runway and separating the cast plate for travelby' gravity over the runway, finishing means jointly actuated by the motor for shaving and trimming the plate, and means controlled by the finishing means for conveying the finished plate away and diverting the trimmed plate end.

8. In a stereotype plate making machine, an inclined runway, a motor, a two-part casting mold, a pouring device therefor, means operated by said motor for operating said pouring device and transferring a mold part to the runway and separating the cast plate for travel by gravity over the runway, a shaving arch over a portion of the runway, a rotary sleeve beneath the shaving arch and driven by the motor, a shaving knife carried by the sleeve, a rotary saw journaled on the sleeve behind the knife, a shaft journaled within the sleeve and transmitting rotation from the motor to the saw, a stop for the plate, and stop operating means on the sleeve.

9. In a stereotype plate making machine, an inclined runway, a motor, a two-part casting mold, a pouring device therefor, means operated by said motor for operating said pouring device and transferring a mold part to the runway and separating the cast plate for travel by gravity over the runway, finishing means jointly actuated by the motor for shaving and trimming the plate, a stop for the plate, stop operating means actuated by the finishing means, a pivoted'portion of the runway and means actuated by the finishing means for tilting said pivoted portion in timed sequence with the stop.

10. Ina stereotype plate making machine, an inclined runway, a motor, a two-part casting mold, a pouring device therefor, means operated by said motor for operating said pouring device and transferring a mold part to the runway and separating the cast plate for travel by gravity over the runway, finishing means jointly actuated by the motor for shaving and trimming the plate, a stop fortheplate, stop operating means actuated by the finishing means, a pivoted portion of the runway, a cam driven by the finishing meansand a tiltablesection of the runway operated by the cam in timed sequence with the stop.

11. In a stereotype plate making machine, an inclined runway, a motor, a two-part casting mold, a pouring device therefor, means operated by said motor for operating said pouring device and transferring a mold part to the runway and separating the cast plate for travel by gravity over the runway, a rotary sleeve actuated by the motor and having means for shaving and trimming the plate, *a vertically reciprocable stop plate beyond the sleeve, a camon the sleeve and means on the stop plate controlled by said cam.

12. In a stereotype plate making machine, an inclined runway, a motor, a two-part casting mold, a pouring device therefor, means operated by said motor for operating said pouring device and transferring a mold .part to the runway and separating the cast plate for travel by gravity over the runway, a rotary sleeve actuated by the motor and having finishing means for shaving and trimming the plate, a cam, gearing between the cam and the sleeve, and a tiltable section of the runway operated by the cam in timedsequence with said finishing means.

13. In a stereotype plate making machine, the combination of a pouring device, a casting box associated therewith, means for reciprocating said box, a core, means for retracting and tilting .the core during said retracting movement, a

gravity runway for successively receiving the cast plate from the core, and positioning it for finishing and cooling, a movable stop for the cast plate intermediate said runway, a rotary sleeve underlying the plate, a knife carried by said sleeve for shaving the concave surface of the plate, a shaft journaled axially within the sleeve, a circular saw journaled on said sleeve behind said knife and driven from said shaft, a tilting section on the runway beyond the stop, means operated by said sleeve for tilting said section, a second stop spaced beyond said tilting section above the runway, means for rendering said stop inoperative, a power source and means connected thereto for cyclically and successively operating the several mechanisms.

14. In a stereotype plate making machine, an inclined runway having an upper receiving end, a lower delivery end and an intermediate portion, a two-part casting mold, a pouring device therefor, means for transferring a mold part to the receiving end of the runway and separating the cast plate for travel by gravity over the runway, movable means to stop the plate in the intermediate portion of the runway, separate means for finishing said plate by successively shaving the concave face of the plate and severing one end thereof, means to divert the severed end of the plate from the runway, and movable means to stop the plate in the lower delivery end of the runway, a power source and mechanism for delivering power from said source in timed sequence to said plate finishing means, and diverting means and movable stop means.

15. In a stereotype plate making machine, an inclined runway having an upper receiving end, a lower delivery end and an intermediate portion, a two-part casting mold, a pouring device therefor, means for transferring a mold part to the receiving end of the runway and separating the cast plate for travel by gravity over the runway, movable means to stop the plate in the

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