US1921160A - Cone making machine - Google Patents

Description

A. HQLLAND GONE MAKING MACHNE Filed April l2, 1932 4 SheeS-Sheet v Y s hmm 9 E93 E A. A. HQLLAND l com: AMmmm MACHINE Filed April l2, 1932 4 Sheeis-Shee. l

dim W Patented Aug. 8, 1933 YUNTED STTS Lenie@ earsgNr orte 16 Claims.

The principal objects oi the invention are, to enable the manufacture of ice cream cones in quantity production at a uniform rate and cost, and to provide a machine which may be operated continuously with the minimum amount o labor in attendance.

A further and important object is to provide a mechanism which will operate with precision and accuracy and which may be maintained in operation with the minimum amount of repair.

The principal features of the invention consist in the novel construction and arrangement or" parts, whereby a plurality of moulds operatively supported in a rigid frame are operated to open and close at predetermined periods by mechanisms carried on the frame and operated by members travelling longitudinally or" said frame, and further in the novel manner of supporting cores to enter said mould and of entering and removing said cores in a definite timed relation to the operation of the opening and closing or the moulds.

A still further feature of importance consists in the novel arrangement of a filler mechanism for introducing a measured quantity of cone material into the moulds While the cores are removed, the filler device being carried longitudinally oi the frame over the moulds and being operated to inject the cone material in passage thereover.

In the drawings, Figure 1 is a side elevational view of the major part of a machine constructed in accordance with this invention, showing the main frame structure and the travelling chain 3f element.

igure 2 is an end elevational view of the structure as shown in Figure l, part of the driving mechanism being removed. i

Figure 3 is an enlarged side elevational View,

showing the moulds and the operating mecha nism therefor.

Figure 4 is an enlarged elevational detail of a portion of a pair of moulds showing a part or the connecting mechanism in section.

Figure 5 is a plan View of a pair of the mould members.

Figure is a longitudinal elevational View ci one of the moulds.

Figure 7 is an enlarged longitudinal part-sectional elevational view of a portion of one of the moulds showing the cores in operative position therein. Y

Figure 8 is an. enlarged cross sectional View through a pair of the mould sections showing the core removed.-

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(Cl. lill-58) Figure 9 is an enlarged cross sectional View of a portion of the frame and operating trackways showinga mould and its operating cores in positic-n therein.

Figure l0 is a longitudinal elevational detail in 6o part section showing the arrangement or" the moulds and of the means for operating the cores during the travel of the feeding device over the moulds.

Figure l1 is a detail elevational view showing 65- the` mould operating mechanism in the position just approaching iinal closure.

Figure 12 is a detail similar toFigure 11 showing the iinal closing movement of the moulds.

Figure 13 is an enlarged elevational detail of 70, the chain structure showing the means for suppcrting the cams thereon.

Figure 14 is a longitudinal sectional elevational view oi the device for feeding the material into the moulds, and Figure 15 is a sectional detail 75 of a burner. Figure 16 is an enlarged detail elevational View of a portion oi the machine illustrating the relation and operation of the core and mould actuating elements and showing the batter feeding device in transverse section.

In the structure herein shown a pair ci longitudinal frames 1 are spaced apart by cross bars 2 which support various longitudinally arranged bars for carrying the several mechanisms.

On the outward side of the f frame and are` ranged immediately over the longitudinal frame structure 1 a channel bar 3 is supported on brackets 4. Y

Spaced. inwardly from the channel 3 and brackets 4 and supported on the cross bars 2 is 90' `a bracket 5 formed with deep flanges and mounted on the flange adjacent to the brackets l is an I bearn and parallel therewith is a channel section 7.

Mounted on top of the anges of the beams 6 and 7 is a channel 8 which rests upon its web having its flanges turned upwardly, thus forming a longitudinal trackway from which the operating roller chain 9 extends around the sprocket wheels l0 and l1 mounted in suitable journal 19'@ blocks 12 and 13 at the ends of the frame l.

A horizontal guide 14 is suspended from the frame along the underside of the cross bars 2 to support the lower section of the chain.

sprocket 10 is driven at a continuously, uniflf@ form-speed by a suitable motor 15 arranged at one Aend of the frame, so that the chain 9 wil1 move from one end of the machine to the other with a continuous and uninterrupted movement. 1

A plurality of mould supporting bridge memlsf-9 bers 16 are arranged between the longitudinal beams 3 and 6 and are provided with flanged ends 17 which are bolted securely in place. These members are arranged in pairs and each is provided with a plurality of lug flanges 18 through which the rods 19 and 20 extend, said rods being rotatable therein.

The lower rods 20 extend through openings in the beams 6 and 7 and have secured to their extremities the crank arms 21.

Bracket frames 22, shown particularly in Figure 3, are bolted to the inward face of the channel beam 7 and these frames are provided with vertically aligned bearing bosses 23.

Rods 24 are slidably mounted in the bearing bosses23 and are provided with horizontal rods 25, at the top ends upon which are mounted the rollers 26.

Blocks 27 are secured upon the vertically operating rods 24 by means of suitable set screws and toggle links 28 connect said blocks with the crank arms 2l.

Link arms 29 and 30 are keyed to the rods 19 and 20 respectively and their opposite ends extend into engagement with pins secured in the lugs 31 which project laterally from the mould sections 32, which are adapted to abut in snugly engaging contact to form the mould cavities in which the cone material is shaped and the mould members are preferably formed of a light aluminum casting having the half section conical formations 33 in the hollow faces of which are fitted the removable mould linings 34.

Vertical ribs 35 are arranged on the outer side of the conical formations 33, and a cover plate 36 with an asbestos lining 37 is secured thereto to cover in the major portion of the back of the mould, forming tapered cavities 38 between the outer wall of the mould and the plate 36.

Gas jets 39 have their convergent ends extending through holes 40 in the bottom flanges of the mould section and each project a flame upwardly into the tapered cavities 38.

The burner jets are coupled to a common feed pipe 41 coupled by a flexible hose 42Y to a gas supply pipe 43. Y

Each of the mould sections 32 is provided with end lugs i4 which are adapted to engage the top edges of the beams 3 and 6 when the mating surfaces are fitted snugly together.

It will be understood that by the manipulation of the rods 24 vertically in the bracket frames the links 28.0perate the crank arms to turn the rods 20, thereby swinging the link*Y arms upwardly and downwardly. f

The upper link arms operate in parallel relation to the lower link arms, consequently the mould sections are raised upwardly and away from each other, separating to allow thel cone formed therein to be discharged.

The arrangement of the mechanism for operating the rods 2e is shown particularly in Figures 3 and 9, as well as in Figure 2.

The rollers 26 which project laterally from the rods 24 are engaged by a cam plate 4.5 which is bevelled at one end to extend under the rollers and to lift the same and is bevelled at the other end to permit the rollers to again drop to their normal position. Y

The weight of the moulds supported from the link arms 39 and 30 may be sufficient to return the moulds to their closed position, lbut a guard strip 45 is arranged to engage the rollers 26, and in order that they be very closely held in'contact so that the fluid material poured the-:cinto will not leak out, provision is mad for pressing them snugly into contact as will hereinafter appear.

plurality of brackets 46 are rigidly mounted upon the outer side of the channel 3. These are equally spaced apart and in definite relationship to the moulds, being aligned with the meeting faces of the moulds. A

Rods fi'. are slidably mounted vertically in said brackets 46 and the upper ends thereof are guided in guide blocks 48 carried by a bar 49.

Cross beams 50 are secured to the rods 47 and from these beams are suspended the core bars 51.

A plurality of conical cores 52 are secured to the core bar by means of suitable bolts and these cores are aligned with the separable moulds and adapted to enter the same in true axial relationship.

The top of the core bar is of a hollow U shape and burners 53 are carried therewith directing a flame downwardly thereinto to maintain the cores at a desired temperature.

A flexible hose 54 connects with the supply pipe L13.

It will be seen that the core bar is adjustably mounted on the cross beam 50 by means of threaded bolts 55 so that the cores may be vertically positioned in respect to the moulds.

VBrackets 56 are rigidly secured to the cross beams 50 and on these brackets are mounted rollers "57.

A cam plate 58 is carried by the chain 9 and extends upwardly therefrom when the chain is travelling along the upper guide and is adapted to extend under the rollers 57 carrying the core bars and raises the cross beams 50 a sufficient height to raise the cores clear of the moulds, and also sufficiently above the tops thereof to permit of the passage of a filler mechanism thereunder.

The cam 58 is provided with a quick drop surface 59 having a guard strip 60 thereover to ensure the falling of the rollers and at the bottom of the quick drop is arranged a more gradually sloping cam portion 6l to ease the rollers olf in their downward movement before the core members reach their lowermost position.

The core bars are each provided with laterally extending arms 52 at the ends, which are adapted to engage the tops of the moulds and upon pressure being applied to the core bars, said lateral extensions will press Athe moulds down tightly between theiisupporting toggles and ensure the centralization of the cores in the moulds. The chain 9 carries a plurality of flanged plates 63, the top flanges of which are arranged to engage the rollers 57 immediately after they reach the bottom of the cam plate 58, and to press them downwardly tightly against the tops of the moulds and thereby tightening the moulds and forcing the cores into the moulds and ensuring the arms 62 pressing firmly on the moulds.

It will be understood that an accurate adjustment of the aligning of the mould cores and moulds will be necessary and that there will be a relative change in the positions of the mould members because of the Variation of temperature. An adjustment is therefore arranged in connection with the bridge members 16. ThisY adjustment is accomplished by tapered blocks 64 and bolts 65 and-the blocks are held in snug engaging Contact throughout Variation of movement, due to temperature, by the springs 66;

When the temperature of the moulds expands the bridge members, the tapered blocks are adist '50. diate of its length and its other end is pivotally justed to the proper position Vand when the metal cools, these will enable movement without fracture, but the adjustment is maintained automatically by the springs to take up the difference between the centres.

The cam plate 58 is of considerable length and as it is carried by the chain 9 around the sprockets it requires to be broken into several sections. These nt together to form a unitary structure, as illustrated in Figures 10 and 3, when the chain is supported on the upper guide-way.

A shaft 67 is mounted in the cam plates 58 and extends across the machine, which is preferably formed in two units and on the end of the shaft extending outwardly beyond the cam plate is pivotally mounted a casing 68. This casing forms the feeding device from which vthe batter is discharged into the moulds.

A cylindricalpassage 69 is arranged to extend horizontally throughout the length of the bottomY of the casing 68. A plurality of small openings 70 lead into this passage from the main body of the casing.

A rotary valve 71 is arranged in the passage 69 and is provided with transverse openings 72 communicating with the passages 70 and with openings 73 in the bottom.

Small cylinders 74 are secured in the bottoms of the casing, one over each of the passages 70, and in each of these cylinders is arranged a piston 75.

v A crank shaft 76 is provided with links 77 connecting the pistons and cranks so that upon the oscillation of the cranks the pistons will be moved downward to eject the material contained in the cylinders.

A bar 78 is pivotally mounted at the outward end of the casing 68 and is connected by a member 79 to the crank shaft so that upon a downward throw of the bar the member 79 will op era'te the crank shaft and pistons to eject a quantity of the batter material.

The bar 78 is provided with an extension 80 upon which is mounted av roller 8l.

A lever 82 is pivotally mounted at one end on the inside of the cam plate 58 and said lever has a curved cam 83 which is adapted to engage the roller 81.

A link 84 is connected to the link 82 intermeconnected to a bell crank lever 85 which is pivo'ted on a pin 86 mounted in the cam plate below the shaft 67.

A- plurality of blocks 87 are arranged along the r. top of the beam 6 adjacent to the chain guiding channel 8 .and the downturned end 88 of the bell crank lever is adapted to engage the said blocks as the cam travels longitudinally of the machine.

The operation that occurs upon the engagement of the lever 85 with the blocks 87 is that the end connected to the link 84 pulls downwardly,

vswinging the lever 82 upon its pivot to press downwardly on the roller 8l, and thereby operating the bar 78 to force the pistons downwardly in the cylinders.

Simultaneously with the downward movement of the pistons a member 89 is operated to rotate the valve 71 bringing the passages therein in alignment with the passages in the bottom of the casing and the pressure applied to the fluid mixture squirts the material through the holes into the moulds atY the proper period during the passage of the filler over the moulds. It is thus 7 necessary to arrestjthe chain beltv or filler product.

vso

port 90 in the valve 71 into engagement ,with` the passages in the bottom of the casing leading from the cylinders and connects with bypass passages 91; Ihe locked pressure is thus relieved and any of the batter remaining inthe Vcylinders after the exit has been cut off will be forced back into the casing. l i

In the operation of this machine the only travelling portion is the chain belt carrying the filler device. The chain is operated by the motor 15 and as it travels over the upper guideway the cam plate 45 carried at one side of the chain engages the rollers 26, lifting therods 24 in their vertical bearings and `swinging the link arms 29 and 30 to raise the mouldsections, consequently separating same and allowing the baked cone to drop therefrom. i

An endless carrier belt 92 is arranged underneath the moulds to receive the baked cones dropped therefrom and to carry same to the end of the machine where they are deposited on the transverse belt carrier 93.

Immediately prior to the operation of the moulds by means of the cams 45,7the cam 58 engages the rollers 57 raising the core bars 51'. The cam plate 45 immediately after discharging the cones from the moulds effects the closing of the moulds, and immediately following the closing of the moulds the filler passes thereover and is operated by the tripping of the bell crank lever 85 ycoming into contact with the blocks 87.

A measured quantity of the batter from which the cone is made is then injected into the mould cavity by means of the mechanism described, and immediately following such operation, the cam plate 58 recedes and allows the core bars to move downwardly into the mould. The flanged plates 63 then engage the rollers 57 pressing the core bars downwardly to engage the tops of the moulds and to tighten the moulds down securely against the frame.k

The batter having thus been introduced into the mould the cores are immediately inserted so that the batter fills the mould and the core and mould are then clamped tightly and held thus for a definite period until the cam plate 45 completes its cycle and again opens the mould discharging the finished cone.

A machine such as described requires very little power to operate, as neither the moulds nor the cores are carried around with the moving parts, but are simply operated, lifting the cores from the moulds, opening the moulds to discharge the finished cones and then closing the mouldsand inserting the cores.

The device operates very quietly andrefiiciently. y

The action of the moulds in opening is a lifting movement operating simultaneously on both sides so that the moulds are drawn clear of the baked The core having been rst loosened from the centre the cone is then cleared from off the baking surface practically simultaneously.

It will be noted yon reference to Figure 2, that the duplicate arrangement of the trackway 8 on Another feature of importance is either side of the longitudinal centre of the machine provides a balanced support for the cross beams 5D and that the filler casings 687are supported'on the ends of the shaft 67 and operate inside of the guides 47 at the outer ends of the bars 50 which operate in the rigid guides 46 and 48 extending outside the rigid frame structure 3. Q Y

' The machine is shown in a balanced arrangement with two longitudinally arranged sets of moulds and either one or both of these sets may be operated as desired. Also it will be observed that Aany one mould may be left out of operation by removing the obstruction block 87 which trips the filler apparatus.

that the bell crank is positively operated to its return position to insure the return of the pistonsfto the uppermostY positions by a roller 85 engaging an inclined bracket V94 arranged on the frame adjacent to each mould.

' An angle bar 95 is secured to the channel V'l and 'extends over the chain to hold it from lifting underthe upward pressure of the plates 63 when they engage the rollers 57. i A further feature of importance in this device consists in the arrangement of the spaced horizontal angle guides supported beneath the frame which engage the outer rollers of the triple roller chain carrier and allow the cams to travel under `the frame in a reversed position.

It will also be noted that the fillerdevice is pivotally suspended and swings downwardly when the cam 58 is reversed, while the trip mechanism remains on the face of the cam. The curved shoe SS'of the lever S2 swings clear of the roller 8l as the cam passes-around one sprocket and it picks up the roller as the camswings around the sprocket at the opposite end. l

What I claim as my invention is:

l. A cone making machine, comprising a frame, alplurality of moulds mountedon said frame, cores-supportedfrom said frame adapted to be .withdrawn from said moulds, means operating with a uniformly continuous movement from end to'end of the frame travelling over said frame for effecting the opening and closing of said moulds and operating said cores, and ailller co-operating with :said travelling means and moving continuously therewith from one end of the frame to the other and projecting a quantity of batter during vits movement into the moulds immediately following the closing of same. f

2. A cone vmaking machine, comprising a horizontal frame,la plurality of moulds mounted on said frame,`said moulds being formed in separable halves, cores suspended from said frame centrally between the half moulds and adapted to be Y lifted therefrom, means including an endless chain travelling over said frame withy a uniformly contiriuous movement from one end of the frame to the other to progressively raise the cores and separate said mould sections and to progressively withdraw said cores, and means for supplying batter to the moulds.

3. A cone making machine, comprising a frame Vhaving a pair of horizontally spaced beams extending longitudinally thereof, a plurality of rigid supports` extending transversely between said rbeams and equally spaced apart, arms pivotally mounted on said spaced members, half .mould sections'mounted on said pivotal Yarms and adapted to be swung apart, members vertically slidable on said frame, cores suspended from said vertically 'slidable members and adapted to tY between said 4. A cone making machine, comprising a horif zontal frame having a pair of parallelly arranged beams extending longitudinally thereof, a plurality of members equally spaced apart and rigidly spaced therebetween, shafts extending through n said rigid members, lever arms secured to said shafts,v half section moulds pivotally mounted on said lever arms and adapted to be swung upwardly and apart and to swing downwardly and close together, cores suspended from said frame in said moulds, a travelling chain belt operating with `a continuous and uniform movement from one end of the frame to the other, and carrying members, guide means supporting said chain belts and cam members, means connected with the shafts operativeiy connected with said mould sections adaptedto rotate same, said means being operated by one of said cams, means Voperatively connected with said core members adapted to engage the other of said cams, and means for supplying batter to said moulds.

5. A cone making machine, comprising a frame having a pair of parallelly horizontal beams, equally spaced members rigidly mounted between said beams and each having a pair of shafts rotatably mounted therein on either side thereof, parallel crank arms Aconnected to said shafts, half section moulds pivotally mounted on the outer ends of said parallel crank arms adaptedto be brought into face-to-face engagement with the downward movement of said crank arms and to be raised upwardly and apart from each other by the upward movement of said crank arms, toggle members connected to the outer end of one of each pair of shafts, a vertical member operatively connected to said toggle members to operate two thereof in unison, a travelling member adapted to move along said frame, a cam carried by said travelling member, rollers rotatably mounted on said vertically operating members to engage said cam and to operate the moulds, core members adapted to enter said moulds when the latter are in their Dclosed position, vertical guides supporting said core members, means for raising and loweringsaid core members progressively following the operation of said moulds, and means for supplying batter to the moulds. 6. A cone making machine, comprising a frame having a horizontal guide-way, an endlessbelt extending over and under said longitudinal frame, aplurality of moulds arranged in said Vguide-way in fixed position and capable of being opened and closed, a plurality of cores supported from said frame and fixed against longitudinal movement and capable of moving up and down, acam member carried by said endless 'beltadapted to open and close said moulds, a separate cam member vcarried by said endless belt adapted to raise and lower said cores, and a batter feeding mechanism carried by said endless belt over said moulds and under said cores when the cores'arein their raised position.

7. A conemaking machine, comprising a horizontal frame, a flanged guide-way extending throughout the length of said frame, sprocket wheels arranged at the ends of said frame, a roller chain operating in said flanged guide-Way and extending around said sprocket wheels, a cam plate bevelled at each end mounted on said chain, a plurality of vertically slidable members spaced along the side of said frame having rollers adapted to engage said cam plate, toggle mechanisms connected to said vertically operable members, mould sections arranged in said frame and operated by said toggle mechanism, vertical guides spaced along said frame, rods vertically movable in said guides and having rollers at the top end, core members carried by said vertically slidable rods, a cam mounted on said roller chain adapted to engage the rollers of said vertically slidable rod to raise and lower said cores, and means for feeding batter to the moulds while the cores are raised.

8. A cone making machine, comprising a frame having a pair of horizontal longitudinally arranged beams, a flanged guideway arranged upon the top of one of said beams, a roller cham operating in said flanged guide-way, sprockets arranged at the end of the frame carrying said roller chain, a plurality of toggle mechanisms vertically arranged on the outer side of one of said beams, a cam carried by said chain adapted to engage and operate said toggle mechanisms in its travel longitudinally of the frame, a plurality of support beams extending across the frame, vertical guides extending upwardly from the outside of the other of said longitudinal beams and supporting said cross beams, core members suspended from each of said cross beams, rollers mounted on said cross beams and extending therebelow, a cam plate mounted on said chain adapted to engage said rollers to lift the cross beams and the cores, flanged plates mounted on said chain adapted to engage said rollers to press the cross beams and the cores carried thereby downwardly, moulds formed in half sections operatively connected to said toggle mechanisms, and means for supplying batter into said moulds at a predetermined period.

9. A cone making machine, comprising a frame having a horizontal guide-way, a plurality of moulds supported in said frame, individual mechanisms for operating said moulds arranged on said frame, a member travelling longitudinally of said frame having cam means thereon for operating said individual mechanisms progressively, cores mounted on said frame for vertical movement to be raised above said moulds, a cam mounted on said longitudinally travelling member adapted to raise and lower said vertically operable cores, a feeding device supported by said cam and adapted to discharge periodically, and means mounted on said frame adapted to engage and operate said feeding mechanism at a predetermined period.

l0. A cone making machine, comprising a frame having a longitudinal trackway, an endless chain operating in said trackway with a continuous movement from one end to the other thereof, cams carried by said chain and moving therewith uninterruptedly from one end to the other of the trackway, moulds mounted in stationary arrangement on said frame and operated by the travel of one of said cams, cores co-operating with said moulds and operated by another of said cams, and means carried with a continuous movement from end to end of said trackway for feeding batter to said moulds and discharging batter instantaneously to each of the moulds as it moves therepast.

l1. A cone making machine, comprising a frame having a pair of longitudinal trackways arranged either side of the longitudinal centre, a carrier device operating in each of said trackways, moulds arranged outside of each of said trackways in xed positions, vertical guides arranged outside of said moulds, means extending across the machine and supported for vertical movement in said guideways, cores carried by said vertically operating means, mould filling means supported by said carriers inside of said vertical guides, and means carried by said carriers for raising and lowering said cores.

12. A cone making machine, comprising a frame having a pair of longitudinal trackways arranged either side of the longitudinal centre, `an endless roller chain operating in each of said trackways, moulds mounted in said frame at the outward side of said trackways, means arranged adjacent said rackways for operating said moulds, cams carried by said chains foroperating said mould operating means, members extending transversely of the frame and mounted in vertical guides, cores supported from said transverse members, means carried by said chains for operating said core carrying members, and mould-filling means carried by said chains to pass over the moulds.

13. A cone making machine having in combination a frame having a horizontal trackway, an endless chain belt operating on said trackway and having laterally flanged extensions on each link forming a travelling trackway, separable mould sections mounted to lift parallelly from said frame, and means co-operating with said mould sections adapted to engage the flanged extensions of said links and to be pressed downwardly thereby to tighten the moulds and hold them rigidly in their closed position.

14. A cone making machine as claimed in claim 9 in which the mechanism for operating the feeding device is mounted on and carried by the cam for raising the cores above the feeding device.

l5. A cone making machine as claimed in claim 6 in which the endless belt is formed with triple rollers and separate cams are mounted between the separate pairs of rollers and travel side by side projecting upwardly from the endless belt in its travel over the longitudinal support in operating the moulds and cores, and flanged guides arranged to support the under portion of the belt by engaging the outer rollers thereof permitting the cams to pass therebetween in a vertical position.

16. A cone making machine having in combination a frame having a horizontal trackway, an endless chain belt operating on said trackway and having laterally flanged link extensions forming a travelling trackway, separable mould sections mounted to lift parallelly from said frame, vertitically movable core units co-operating with said mould sections, and means connected with said movable core units and engaged by the anged extensions of said chain belt links to move the said core units downwardly into closing pressure contact with said mould sections.

ARTHUR A. HOLLAND.

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