US2045535A - Cone rolling machine - Google Patents

Description

June 23, 1936. Q RF TAYLOR GONE ROLLING MACHINE Filed My 51, 1954 5 sheeis-sheet 1 INVENTOR' Carl R. Ta/ylorl BY ./776 ATTORNEYS Enne 23, i936- c. R. TAYLO 2,045,535

GONE ROLLING MACHINE Filed May 3l, 1954 5 Sheets-Sheet 2 mnnlllml INVENTOR @arl R. Taylor Emme 23, 3936. c. R. TAYLOR 2,045,535

CONEROLLING MACHINE Filed May 3l, 1954 5 Sheets-Sheet 5 40 INVENTOR Ca/rl R. Taylor ATTO RN EY5 5e 23, w36. c. R. TAYLOR 045,53

GONE ROLLING MACHINE Filed May 31, 1934 5 -sneeJos-sumen 4 INVENTOR Carl R. Taylor' /wfw A ATTORNEYS une 23, 1936. c. R. TAYLOR M5535 CONE ROLLING MACHINE Filed May 5l, 1934 5 Sheets-Sheet 5 @ye/@@@faw INVENTOR 'ATTORNEY (Ia/rl R. Toi/)flor Patented June 23, 1936 UNITED STATES PATENT OFFICE CONE ROLLING MACHINE Application May 31, 1934, Serial No. 728,265

7 Claims.

This invention relates to cone rolling machines and particularly to machines for forming cone shaped containers such as ice cream cones from hot, freshly baked pastry wafers.

The apparatus of the present invention is an improvement on the cone rolling machine shown in my Patent 1,720,304 issued July 9, 1929, and the principal object of the present invention is to provide a simplified cone rolling machine of relatively compact and economical construction by means of Which the rolled cones can be rapidly formed in a positive and unerring operation.

Another object is to provide a cone rolling machine having a relatively smooth operation and in which mechanism is provided for holding the rolled cones under regulated pressure for a sufficient period of time to insure proper hardening or setting of the formed articles before the release thereof from themold' portions.

A further object is to provide a cone rolling machine with a continuously rotating mandrel and die supporting drum, which is capable of providing a relatively smooth operation.'

With the above and other objects in view, which will be apparent from the following detailed description, the present invention consists in certain features of construction and combinations of parts to be hereinafter described with reference to the accompanying drawings and then claimed. f

In the drawings, which illustrate a suitable embodiment of the invention,

Figure 1 is a side elevation of the cone rolling machine;

Fig. 1a is an enlarged section taken approximately on the line Ia-Ia of Fig. 2; A

Fig. 2 is an enlarged elevation of the driving end of the machine shown in Fig. 1;

Fig. 3 is a side elevation of the gear for driving the individual cone rolling devices;

Fig. 4 is an enlarged fragmentary elevation of the stationary cam;

Fig. 5 is an edge elevation of the 'cam shown in Fig. 4;

Fig. 6 is a section taken approximately on the line 6-6 of Fig. 4;

Fig. '7 is a horizontal section showing the clutch mechanism and a portion of the driving mechamsm;

Fig. 8 is a section taken approximately on the line 8--8 of Fig. 7, showing the means for reciprocating the individual cone rolling elements;

Fig. 9 is a section taken approximately on the line 9 9 of Fig. 7, showing the crank means which operates the conveying mechanism;

Fig. 10 is a section taken approximately on the line III-I0 of Fig. '7, showing the clutch device;

Fig. 11 is a section taken approximately on the line I I-II of Fig. l, showing the disk-like element and crank for reciprocating the individual cone rolling elements;

Fig. 12 is a View showing the adjustable mounting for the disk-like element shown in Fig. l1;

Fig. 13 is an end elevation of the cone rolling end of the machine;

Fig. 14 is a view of the ratchet gear or feeding table elevating device; v

Fig. 15 is a section taken approximately on the line I5-I5 of Fig. 14;

Fig. 16 is a section taken approximately on the line lli-I6 of Fig. 13;

Fig. 17 is a fragmentary elevation similar to Fig; 13, showing the feed table in its lowermost position;

Fig. 18 is a section taken approximately on the line I8-I8 of Fig. 1;

Fig. 19 is a transverse, sectional view of the conical mandrel shown in Fig. 16;

Fig. 20 shows a cake or wafer of pastry'or other material in position to be operated on by the machine; and

Fig. 21 is a side view of a cone formed in the machine from a cake or wafer shown in Fig. 20.

AReferring to the-accompanying drawings, in f which like numerals referto like parts throughout the several views, the machine ofthe present invention includes a frame I having upwardly projecting arms 2 which rotatably support a longitudinally extending shaft 3 on which is mounted a mandrel carrying member 4 and a mold or die carrying member 5. The mandrel carrying member ,4 and die carrying member 5 are keyed to the shaft 3 and the member 4 is provided with a plurality of circumferential teeth 6 which mesh with a drive pinion 'I carried by a shaft 8. The shaft 8 is journalled in a bracket 9 mounted on the main frame I and is driven by a series of intermeshing gears I0 from a drive shaft I I, oneI of the gears being secured to the shaft I I and provided with a series of radial clutch teeth I2 which are arranged to mesh with a clutch element I3 slidably mounted upon and driven by sub-shaft I la having one end rotatably mounted in the gear which carries the clutch teeth. 'Ihe member I 3 is slidably moved on the shaft I Ia by means of a sliding member I4 which is actuated by means of a suitable clutch lever I5 pivoted to the frame I, as shown in Fig. 7.

The mold or die units IB are circumferentially arranged on the member 5 and are conical shaped, each having a slot I1 therein and a loading flange I8 forming one edge of the slot I'I. These mold or die units open through the member 5 to receive the conical rolling elements |9 which are mounted upon rotatable mandrels 20. The mandrelsI 26 are journalled in suitable bearings 2| carried by the member 6 in a circumferential manner, the axis of each bearing 2| being coaxial with a corresponding mold or die unit I6. The mandrels 20' are rotatable in the journals 2| and are also movable longitudinally in the journals 2|. Each mandrel is provided at its end, projecting through the journal 2|, with a circular control disk 22 and a drive pinion 23 between the control disk andthe journal 2|, a coil spring 24 being interposed between the disk 22 and the pinion 23. The pinion 23 is keyed to the mandrel 20 and the disk 22 is movable on the mandrel 20 toward the pinion 23 against the pressure of coil spring 24. During the rolling operation, the control disks 22 abut against a stationary annular cam 25 secured toI one of the arms 2, the cam 25 having a recess 26 therein of suicient depth to permit the control disk 22 to be moved from a position such as shown in Fig. 1 to abutting engagement with the inner face of the cam 25. When the control disk 22 is in this position, the mandrel 2D is yieldably urged toward the die units I6. Y

The pinions 23 are rotated during a portion of their travel with the members 4 and 5 by a gear 2'I mounted on a shaft 28 which is journalled in a bracket 29 secured to the arm 2. The shaft 28 is provided with a' sprocket 30 which is driven by means of a drive chain 3| from a sprocket 32. The sprocket 32 is driven by suitable gearing 33 from the drive shaft II. At a predetermined period, the mandrels 20 are withdrawn from the die elements I6 and then reregister with these die elements. The means for accomplishing this comprises a parallel linkage 34 pivoted at the lower end to a bracket 35 secured to the frame and having at its upper end a grooved block 36 having a groove 3'I therein of suii'icient width to receive thecontrol disk 22 of each mandrel 2U as the mandrel rotates with the members 4 and 5. The block 36 is provided with a recess 38 at its upper end which opens into the groove 31 as shown in Fig. 8.

The linkage 34 is caused to travel longitudinally of the machine by means of a disk 39 having a rotatable block '40A thereon' which is arranged to have sliding movement on'on'e of thebars of the linkage 34. Thedisk 39 is mounted on a shaft 4| journalled in a bracket 42 secured to the side frame I. The shaft 4I is driven by means of bevel gears 43 from the shaft I I. A latching dog 44, as shown in Fig. 4, is pivoted to the stationary cam 25 at the upper edge of the recess 26 and is held in a normal position by a coil spring 44a to assist in the movement of the mandrels 28 relative t the members 4 and 5.

Each of the conical members |9 which registers with the die element I6 is provided as shown in Fig. 19 with a series of ridges in the form of wires 45 that serve to engage 'the wafer to draw it into the molding cavity when the mandrel is rotated. The ridges formed by the wires terminate near the central zone of the member I9 in order that they may partially imbed themselves in the pastry of the formed cone and carry the cone out of the mold when the mandrel is that are carried by the shaft 3 in any suitable manner, as shown in Figs. 1 and 18, engage the open end of the formed pastry cone when the mandrel 20 is drawn out of the mold by the operation of the linkage 34. rlhe fingers follow the longitudinal contour of the rolling member I9 to drag the formed cones from the member I9 and permit them to fall upon an underlying conveyor belt 41 which is driven by a ratchet mechanism 48 from the shaft 8.

In order to assist in feeding the wafers into the slots I'I of the die element I6, a suitable feed table 49 is provided. This feed table 49 is mounted upon an arm 50 pivoted to the shaft 3 and is raised by means of a ratchet gear 5| secured to the shaft 3. The arm 59 is provided with a spring pressed dog 52 which is arranged to engage with the teeth of the ratchet gear 5|, as shown in Fig. 17. The dog 52 and ratchet of the gear 5I, when they engage, raise the table 49 upwardly to a position such as indicated in Fig. 13, and during this movement the wafer to be rolled into a cone is manually slid from the table 49 onto the feed flange I8 of the element I6 and into the slot I'I. As they uppermost position of the table 49 is reached, the dog 52 is thrown out of engagement with the engaging teeth of the ratchet gear 5| bymeans of a suitable cam 53, and the table 49 then drops to its lower position. The downward position of the table 49 is limited by means of a, member 54 carried by a rod 55 which is pivoted at 56 to the arm 58. The hinged connection 56 is preferably arranged at a slight anglew'ith respect to the movement of the arm 50 so that, as the table 49 approaches its lowermost position a slight friction is exerted to allow the table to gradually assume its lowermost position. Also, the stop member 54 may be of rubber or other suitable material if desired, to prevent a jarring movement when the table 49 reaches its lowermost position.

In order to properly time the machine, the ratchet gear 5I, as shown in Fig. 14, is arranged to be adjustably rotated, and for this purpose the ratchet gear is mounted upon a disk 5I having slots 58 therein, the gear 5I being secured to the disk 5'I by bolts 59 whichv extend through the slots 58.

Similarly, the disk 39 which drives the linkage 34 is adjustably mounted on a ilanged collar 60 carried by the shaft 4|, as shown in Figs. 1l and 12, the collar 60having slots 62 therein and the disk 39 being secured to the collar 60 by means of cap screws 63 which extend through the slots 62 and thread into a suitable plate 64.

It will be noted in Fig. 3 that some of the teeth 65 of the mandrel drive gear 2I are cut away for a portion of their depth, one tooth being cut away substantially to its pitch circle and the succeeding teeth being of gradually increasing depth. This is for a purpose which Will be seen in the description of the operation of the machine.

The shaft 3, together with the members 4 and 5, is continuously rotated and the mandrel drive gear 21 is also continuously rotated and the pitch circle of the drive gear 2'I is substantially tangent at predetermined times to the pitch circle of each mandrel pinion 23, as shown in Fig. 2, so that as the pinions 23 are bodily moved in a circular path past the gear 2'I the teeth of the pinions and drive gear 2'I will engage and cause Va rotation of the mandrel, which rotation causes the wafer that is fed into the slot of the die element I6 to be rolled within the die element to produce the rolled cone 66 shown in Fig. 21.

As viewed in Fig. 2, the shaft 3 rotates in a clockwise direction During theV operation of the machine, the wafer from which theK cone is to be formed is moved into the slot I'l ofV the die element I6 as the table 591 moved. upwardly, and as the correspondingmandrel is being rotated by the gear ZT, which causes the mandrel 20 to rota-te during the time that. the gears 23'. and 2T= are meshed with each other. The members di and 5 then carry. the mandrel: in a clockwise direction,

as viewed in Fig- 2, from the position indicated' at A to a position B, at which time the linkage 341 hasv moved the block 365 inwardly so that the groove 312 thereof is in a position tov receive the control disk 23. of the mandrel C approximately as the disk 23'V clears; the edge ofthe recess 26, in the` camf25; Then, during aportion of further travel of the mandrel C, the linkage 3d moves outwardly and carries themandrel C'in an out ward direction soi thatv the cone Sii carried by the rolling element I9 is stripped from the element I9 by means of the fingers: 4,6. During continued movement of the mandrel in a clockwise direction, the linkage 34 then moves the mandrel inwardly so that the teeth of the pinion 2-3 engage with the mandrel drive gear 2l, at which time the rolling element. i9 is registered. with the correspending die elementy l-B to roll another cone.

Inasmuch as the' mandrel is moved to its inner position with a slight pressure caused by the spring. 24p thel latchjmeans 44 is provided to prevent outward movement of the mandrel during the time the control disk leaves the groove block 36 to engage with the inner face of the stationary cam 25.

It will be noted that the pinions 23 bodily move in an annular path about gear 2l which successively rotates them during a portion of their travel and that the pinions during their travel are successively caused to engage with and disengagel from the gear 2l. In order to avoid clashing and interference of the teeth of the respective gear and pinions as the pinions are disengaging from and moving in their annular path bodily away from the gear 27, some of the teeth 65 of the gear 2l are cut away for a portion of their depth, as shown in Fig. 3. As previously explained-one of these teeth is cut away substantially to its pitch circle and the succeeding teeth at one side gradually increase to maximum or full depth at the addendum circle. This permits a positive and sudden disengagement of the teeth of each pinion 23 from the teeth of the gear 2l and insures that the tips of the teeth of the gear and pinions will not interfere with each other as they are being disengaged during the annular travel of the pinions 23 away from the gear 21.

In Figs. 2 and 1a I have shown a means for rotating the mandrels slightly as they are bodily moved, in order to prevent the cake or baked batter being rolled from becoming too rmly set in the molds or die elements I6. This means may comprise a pair of arms 'lil carried by the shaft journal of the member 2, each arm having an4 element 1I pivoted thereto and urged to a normal position by a spring 12. As the gears 23 are moved throughout the circular path during rotation of the shaft 3, the elements 'il engage with the teeth of the gears 23 and cause the same to rotate a slight amount. This will prevent the rolled cone from becoming set too firmly in its die element I6, thus permitting easier withdrawal of the cone from its die element I6.

It will be noted from they foregoing descrip-tion that I have provided an improved cone rolling mechanism in which the aligned rolling mandrels andi die elements arelcontinuously moved in a circularpath without interruption andv in which the mandrels are-reciprocated longitudinally to strip the. rolled'` cones andthen moved back to their normal? position at pretedermined periods for a subsequent cycle of'v individual rotation during which time the: rotation of element i9 by the mandrel draws the water into the die element iii where it is rolled and maintained under molding pressure long enough-to properly cool and assume the desired permanent shape before it is ejected uponv the next subsequent outward reciprocation of the mandrel 20.

The cone rolling machine of the present invention is capable` ofrapidly producing pastry cones during a smooth and positiv-e operation, A very large number of such cones can be readily produced by the machine in a short time and in fact, it has been found in'commercial operation that the machine is capable of forming cones as rap idly as the cakes or wafers can be baked in the improved forms of baking machines now available.

Although a single embodiment of the invention has', been herein shown and described, it will be understood that' numerous details of the con struction shown may be altered or omitted without. departing from the spirit of this invention as defined in the-following claims.

What I clainris:

1. In a cone rolling machine, the combination of a rotatable shaft, a mold carrying element secured to said shaft, a plurality of annularly arranged conical molds mounted on said element, a mandrel carrying element spaced from said rst element and secured to said shaft, a plurality of annularly arranged rotatable and reciprocable mandrels supported by said mandrel carrying element, each mandrel having a conical rolling member registerable with a mold, means for continuously rotating said elements, means for reciprocating said mandrels at predetermined periods, and means for successively rotating said mandrels during a portion of their annular travel comprising a pinion on each of said mandrels, and a drive gear oiset with respect to the aXis of said shaft to successively mesh with said pinions during rotation of said mandrel carrying element, a portion of the teeth of said drive gear being of partial depth only to facilitate disengagement of the pinions and gear during rotation of the mandrel carrying element.

2. In a cone rolling machine having a rotatable mandrel carrying element, mandrels reciprocably carried by said element and. being annularly arranged, a stationary cam, control disks on said mandrels normally having end thrust engagement with said cam, said cam having a recess to successively permit reciprocation of said mandrels, and a movable latch member in the path of movement of said mandrels to normal position, said latch member being movable by the engagement of the control disk therewith to permit such movement and being engageable after such movement with said control disk to hold said disk against movement until engaged by said cam.

3. In a cone rolling machine, a rotatable mandrel carrying element, a mandrel mounted for reciprocating movement in said element and having a control disk, a stationary cam having a surface with which said disk is normally engaged during the greater portion of rotational movement of said element, said cam having a recess through which said mandrel and disk are recip- 75 rocated, and a pivoted spring pressed latch at the edge of said recess normally lying in the path of reciprocable movement of said disk.

4. In a cone rolling machine having a, rotatable mold carrying element, annularly arranged molds carried by said element, each having a feed slot therein, a pivoted feed table, and means for raising said table during a portion of the movement of said molds by said element, said means including a rotatable ratchet gear and a spring pressed pawl wherebyto pivotally raise said table and release the same for free downward movement.

5. In a cone rolling machine having a rotatable mold carrying element, annularly arranged molds carried by said element, each having a feed slot therein, a pivoted feed table, and means for raising said table during a portion of the movement of said molds by said element, said means including a rotatable ratchet gear and a spring pressed pawl whereby to pivotally raise said table and release the same for free downward movement, said means also including means for damping the downward pivoting movement of said table.

6. In a cone rolling machine having a rotatable mandrel carrying element, a plurality of annularly arranged rotatable mandrels carried by said element, each having a pinion thereon, means for continuously rotating said element, a fixed rotatable gear for rotating said pinions as their mandrels are moved by said element, and at least one means fixed to engage the teeth of the pinions as they move in their annular path, whereby to partially rotate said pinions.

'7. In a cone rolling machine, the combination of a rotatable shaft, a mold carrying element secured to said shaft, a plurality of annularly arranged conical molds mounted on said element, a mandrel carrying element spaced from said rst element and secured to said shaft, a plurality of annularly arranged rotatable and reciprocable mandrels supported by said mandrel carrying element, each mandrel having a conical rolling member registerable with a mold, means for continuously rotating said elements, means for reciprocating said mandrels at predetermined periods, and means for successively rotating said mandrels during a portion of their annular travel comprising a pinion on each of said mandrels, and a drive gear offset with respect to the axis of said shaft to successively mesh with said pinions during rotation of said mandrel carrying element, a portion of the teeth of said drive gear being of partial depth only to facilitate disengagement of the pinionsand gear during rotation of the mandrel carrying element, said last mentioned teeth increasing gradually from a minimum depth at the pitch circle of the said gear to maximum depth at the addendum circle thereof.

CARL R. TAYLOR.

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