US1327806A - Depositing-machine - Google Patents

Description

C. W. BUNDE.

DEPOSITING MACHINE.

APPLICATION FILED MAY 17, I919.

Patented Jan. 13, 1920.

4 SHEETS-SHEET I.

C. W. BUNDE.

DEPOSITING MACHINE.

APPLICATION FILED MAYH. I919.

1 ,327,806, Patented Jan. 13, 1920.

4 SHEETS-SHEET 2- c.'w. BUNDE.

DEPOSITING MA CHINE.

APPLICATION FILED MAY 17, 1919.

Patented Jan. 13, 1920.

4 SHEETS-SHEET a.

c. w. BUNDE.

DEPQSITING MACHINE.

APPLICATION FILED MAY 17, 1919.

11,327,806, Patented Jan. 13, 1920.

4 SHEETS-SHEET 4- PATENT OFFICE.

CLAUDE W. BUNDE, OF CHICAGO, ILLINOIS, ASSIGNOR T0 NATIONAL CANDY COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY DEPOSITING-MACHINE.

Application filed May 17,

citizen of the United States, residing at Chicago, in the county of Cook and State oflllinois, have invented a certain new and useful Improvement in Depositing-Ma chines, of which the following is a specification.

My invention .relates to depositing machines adapted tooperate upon plastic material. While the principle of the invention is applicable to varioussubstances, it is especially adapted to material which is noticeably cohesive; for example, the s'o-called dough used by confectioners for-the manufacture of macaroons. Ordinarily confectioners macaroons are composed of a con siderable percentage of shredded cocoanut which renders the material not only plastic, but both cohesive and adhesive. 4 The general object of the invention is to provide a machine for depositing the material. .in formed pieces of disk or other shape,- and to do the work with certainty, uniformity,

accuracy and with little attention on the part of the attendant.

Among the, specific objects which contribute to this" general object are toprovide a sliding cut-off valve for forming the pieces; to provide-means for -venting the cut-off valve; to provide means for keeping the vent of the cut-ofi valve open, to pro vide special ejecting means for ejecting the formed-pieces from the machine; to'provide means for lubricating said ejecting means, and to provide means for timing and correlating the various elements which work together to produce the final result.

I accomplish my objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a top plan view of the complete machine embodying my invention.

Fig. 2 is a side sectional elevation thereof on the line 2.2, Fig.' 1. 1

Fig. 3 is a cross sectional elevation on the line 3-3, Fig. 2. g

Figs. 4- and 5 are detail views showing different pieces of the cut-off valve and ejector.

Fig. 6 is a fragmentary top plan view of the cut-off valve.

out the several views.

Specification of Letters Patent.

I 15 which supportsthe slidin Patented Jan. 13, 1920.

1919. Serial No. 297,726.-

In the particular embodiment selected to illustrate theinvention, the machine has a base 1 havlng standards 2, 2 rising therefrom and forming a-support for the side frames 3, 3. These parts taken collectively may be regarded as the main frame of the machine. Fastened to the side frames 3 are brackets 4 which support a plate 5 which forms a platform for supporting the upper runof an endless belt 6, as best shown in Figs. 2 and 3. This belt runs over rollers 7, 8 mounted upon shafts 9 arranged horizontally at opposite ends of the main frame, as best shown in Figs. 1 and 2. Said belt is designed'to have the finished, pieces 10,10 deposited on it in the manner hereinafter described.

Rigidly mounted above the belt is a plate cut-oflf valve 16 and has a row of orifices 1 near one end through which the pieces are delivered onto the belt when finished. Said valve has arow of orifices 18 which form dies in which the pieces are formed and transferred from the reservoir to the' discharge orifices,

Above valve 16 is rigidly mounted a plate 20 which has a row of orifices 21 through ger-23 controlled by racks 24 operated by pinions 25 as best shown in Figs. 1 and 2. Said pinions are rigidly fastened to a shaft 26 and it is'desirable, in order to keep the racks and pinions in engagement w1th each other, to provide yokes 27 which fit loosely over the shaft and'back up the racksthus forming guides for the racks and preventing them from becomlng disengaged from the pinions. "The shaft is given an mtermittent rotary motion by means of; a ratchet wheel 29 adapted to be engagedby a awl 30'pivotally mounted upon an arm 31. arm fits loosely on shaft 26 and 1s causedto oscillate by a pitm-an rod 32 shown among other places at the right side Fig. 3. At

aid 1 the lower end this rod has a fork 33 which, I

straddles the main shaft 35 journaled in the main frame. A roller 37 is mounted on the side of fork 33, said roller running in the track of a shrouded cam 38' rigidly fastened to the end of said shaft 35. y preference the periphery of the cam 39 is cylindrical and concentric with shaft 35 with the result that by puttinga drive belt around the cam the latter performs the additional function of a drive pulley, although it will be unlower end these 'arms 42 are rigidly fastened to a rock shaft 46 journaled near the bottom of the machine and oscillated by anarm 47 the upper end of which is pivoted 'to a fork 48 which straddles, shaft 35'. Mounted on the side of said fork isla roller 50 which works in the track of a shrouded cam 51 rigidly fastened to shaft 35. Thus the rotatlon of said camshaft rotates cam 51 which in turn causes the rock shaft 46 to I oscillate and move the arms 42 and slide valve 16 forward and backward in timed relation with the rest of the mechanism.

A link 55 shown in side elevation in Fig. 2 1S pivoted at one end to one of the arms 42 and at the other end' to an arm 56. which is loosely mounted on shaft 9 and is provided with a pawl 57 adapted to engage the teeth.

v of a ratchet 58, Said ratchet is" rigidly fastened to, shaft 9 and roller 7 is rigidly fastened to the shaft; consequently when the shaft 18 rotated it rotates the roller 7 and advances the belt 6.

' In addition to the orifice 21, plate'20 has a row of orifices-6O located directly above the delivery orifices v17 in plate 15. These parts are shown in detail in Figs. 4 and 5. The travelof the slidevalve 16 is such as to moveorifices 18 from a position where they register with the orifices 21 to a position where they'iregisterwithithe orifices 16 and 17. g v

A rowof ejectors 62 is rigidly mounted upon a cross-beam 63 the ends of which are supported by links 64. These links are pivoted at their lower ends to arms 65 rigidly fastened to a rock shaft 66 journaled near the lower part of the machine as best shown 1n Figs. 2 and 3. Said rock shaft is oscillated by means of an arm 67 provided at its upper end with a roller 68 adapted to work inthe groove of a shrouded cam 69 rigidly fastened to shaft 35. The parts are so timed that when the slide is moved 'to delivering position, as shown in Figs. 4 and 5, the ejectors will descend and force the work down onto the belt 6.

Accordingto the best design the ejectors are cupped at their lower extremities so as to form what is virtually a cutting, or at least a scraping edge around the margin, to faclh- -tate a clean removal of'the formed pieces and make possible a'lubrication of the ejectors where they engage the pieces. A duct 73 is formed in each of the ejectors, its function being to lead the lubricant to the concavity 72 from the supply pipe 74. By

preference duct 73 is open at the top and its inner walls are spaced from the outer walls of pipe 74, thus affording a-vent.' The lubricant ordinarily employed is water which is stored in a reservoir 75 mounted near the upper part of the, machine. The flow of lubricant from the reservoir to the ejectors is controlled by a set of valves 76 having I .levers 77 by which the valves are controlled.

The valves are compelled to operate in unison by means of a controlling bar 78 which actuates them. For the sake of-simplicity, the connection between the controlling bar and the valve levers is made by simply forming apertures in the bar of a diameter large enough to loosely receive the ends of the levers as shown in detail in Figs. 4 and 5.

The controlling bar 78 is arranged horizontally and: is slidingly supported uponpivoted upon a pin 86 carried by'bracket 81.

The other arm 87 of said bell crank is piv i otally connected to a connecting rod or pitman 88 which, at the opposite end, is articulately connected by means of a ball and socket joint89 to the upper end of the arm 42 previously mentioned. It will be evident that, as arm 42 oscillates back andv forth, it will produce a corresponding oscillatory movement'of the arm 85. The arrangement is such that when arm 85 has swung to a point near one end of its travel it will be engaged by the dog 82. The return movement of the arm will cause the dog to move with itand move the controlling bar 7 8 in opposition to the force of the helical compression spring 90 which is interposed between bracket 80' and shoulders 91 formed on the controlling bar as shown near the bottom of Fig. 1.. After the arm 85 has thus moved the dog and bar sufliciently to open the valves 7 6' for a moment, the cam shaped nose of the dog will engage a stationary pin 93 mounted upon the bracket 81 and force the dog out of engagement. wi h arm 85.

As soon as the dog is thus released, the spring 90 will quickly'return the controlling bar to the normal position shown in Fig. 1,

shutting off the valves and putting the dog in position to repeat the operation. This mechanism may be characterized. as including a spring actuated detent which is automatically releasable forenabling the valves to be quickly returned to closed position.

Drain ducts 95, shown in detail in Figs. 4 and 5, are formed in the bottom of plate '20 for leading any excess of lubricating from the ejecting mechanism.

escape of air when the plastic work material is being forced down into orifice 18. Pins 99 hav ng pointed tops are mounted in plate 15 is position to work in the channels 98 to keep them clean. As the valve slides back and forth the pins scrape the sides of the channels and remove any material which may be adhering thereto.'

The operation of the mechanism Will now be readily understood: In starting, the reservoir 22 is filled with the work material and the'plunger 23 is lowered by hand until it contacts it. In initial position the water valves? 6 are closed and the slide valve 16 is in such position that its mold orifices 18 will register. with the die orifices 21 in the plate 20. When the machine is started, the plunger 23. will commence gradually to descend and fill the mold orifices. When they are completely filled, arm 42 moves toward the right, Figs. 2', 4 and 5, thus moving the mold plate or valve 16 toward the right and causing the mold orifices 18 to movefrom charging position shown in.Fig. 1 to discharging position shown in Fig. 4; "At the 'sametime the right edge of thedie openings 21 seve'rs the material in the mold orifices from'the material remaining in the die ori-' fices. At the same time also, the blank surface of the slide valve or mold plate 16 closes the bottom of the die orifices. While the part 16 is traveling from charging-to discharging position, the, ejectors remain ele-, vated, but about this time the water valves 7 6 are momentarily opened. The lower rims of the ejectors are so near the top surface of part 16 that the latter practically forms a closure for the ejectors and consequently the water rises high enough to wet their inner surfaces for a short distance up from the bottom. The amount of water need not be ver great, but in any event it comes be:

tween the work pieces and the ejector and prevents the former ,from sticking to they latter. The mold orifices 18 finally reach the discharging position, Fig. A, where they are uncovered both top and bottom. When. the

orifices 18 arrive at the orifices l7 and .60, the slide valve remains stationary-and the ejectors commence to descend. The descend- -1ng ejectors force the. work pieces down through the orifices 18 and 17 and cause them to drop upon the endless delivery belt 6. In descending, the ejectors crown the tops of the work pieces'e". 0., they round them so that they present a convex. surface when viewed from above. The precise shape of the finished anddelivered article may,-of

course, be varied by varying the shape of the ejector and parts cotiperating therewith. After the ejectors have descended .far enough to eject the finished pieces from plate 15 they rise again toinitial position whereupon the slide valve 16 commences its '80 return travel and finally arrives at initial position. The cycle is then repeated.

When the workmaterial is being forced down into the orifice 18 in the slide valve the air which would otherwise be confined, escapes through the channels 98 .to the open orifices 17 Thus'there is nothing'to prevent the mold orifices 18 from being completely filled and the material compacted.

In case more water than is necessary is '90 released from reservoir 75 by the valves 7 6, no harm is done, for the surplus may readily -run off through the vent ducts 95. In fact;

no harm is done if theejectors are practically flooded, for the water remains in contact with the goods for only a short space of time and cannot do any harm.

It is desirable-thatthe discharge orifice 1n' the bottom plate be of the same size as the mold orifice in the. slide valve, as shown. 100 The advantage is that with this construction, when the ejector descends, it forces the I work piece down through the discharge orifice, and the friction between the-work piece and the walls of the discharge; orifice not I only smooths the sides of the work pieceybut tends to round off its lower corners slightly, thus avoiding any possibility of'r ough cut corners and giving the work piece a more finished appearance. v

It will be understood that'various details of construction may be suitably altered without departing from the spirit of the invention.

Having thus descrlbed my inventlon what I claim as new and desire tosecure by Letters Patent, is:v

1. A depositing machine having a reservoir for containing the work material, the

reservoir having aidie opening at the bottom, a bottom plate beneath,- said die opening, and a valve sliding ly mounted between the bottom plate andlthe die opening and] having a mold orifice, said mold orifice being beneath the die opening when the valve is in charging position, and the bottom of the mold orifice being covered at this time by the bottom plate, and the moldorificebeing v I uncovered by the bottom plate when the valve is in discharging position, the valve having a duct leading from the bottom of A adapted to occupy the mold orifice tothe atmosphere for venting the mold during the act of charging. V

2. A depositing machine having a mold a charging and a discharging position, the mold orifice being open top and bottom when the mold is in discharging posltion, and'an ejector adapted r to enter the mold orifice for removingthe discharging position,

formed piece from it when the mold is in said ejector having a concavity at the bottom for crownin the piece as it is forced from the mold ori ce.

3. A depositing machine having a mold adapted to occupy a charging'and a dis charging position, the mold orifice being open top and bottom when the mold is in discharging position,

, to'enter the mold orifice for removing the formed piece from it when the mold is in discharging position, said ejector having a concavity at the bottom for crowning thepiece as-it is forced from the mold orifice, and said ejector having an opening leading from a point near the top of the concavity for venting purposes.

- 4. A depositing machine having a mold provided with an orifice open top and bottom, an ejector adapted to descend into the filled mold for discharging the work piece therefrom, and a'duct leading downthrough the ejector and adapted to'supply a lubricating fluid to the actings'urface of the ejector approximately concentrically therewith, I

5. A depositing machine having a; mold ,adapted to occupy a charging and a discharging position, the mold orifice being open top and bottom when the mold is in discharging position, an ejector adapted to enter the mold orifice forv removing the formed piece therefrom, said ejector having a duct leading down through it and terminating at the bottom where the ejector contacts the formed piece, and means for con trollably supplying a lubricant to said duct. t 6. A depositing machine having a reservoir, a mold adapted to slide from charging position beneath said reservoir to a .dis-

. charging position at onesidethereof, said mold having an orifice which is open top and bottom when the mold is in discharging position, an ejector adapted to descend into the mold orifice when the mold is in discovered top and bottom when the mold is in discharging position, means for supplying and an ejector adapted plate, and the mold orifice being uncovered a lubricant to the .top of the material within 7 the mold when the latter is in discharglng position,

an ejector, a guide having an orifice 'for guidin the ejector to the mold orifice when the latter is in discharging position, said guide having a drainage duct leading from the side of the guide orifice. V 8. A depositing machine having a reser-' voir for containing the work material, said reservoir having a die opening atv the bottom, a bottom plate beneath the die opening, a valve slidingly mounted between the bottom plate and die opening and having a mold orifice, said mold orifice being beneath the die opening when the valve is n charging position, and the bottom of the mold orifice being covered at this time by the bottom plate, and the mold orifice being uncovered by the bottom plate when the valve is in discharging position, thevalve having a channel leading from theside of the mold orifice to the atmosphere for venting the mold orifice, and means for scraping said channel as the valve travels.

9. A depositing machine having a reservoir for containing the workmaterial, said reservoir'having a die opening atthe botv tom," a bottom plate beneath the die opena ing, a valveslidingly mounted between the bottom plate and die opening and having a mold orifice, said mold orifice being beneath the die opening when thevalve is incharging position, and the bottom of the mold or1- v fice being covered at this time by the bottom by the bottom plate when the valve is in discharging position, the valve having a channel in the bottom'leading from the side of the mold orifice to the atmosphere for vent- 1 ing purposes, and an upstanding stationary pin adapted to scrape the channel free from surplus material during the travel of the valve.

10. A depositing machine having a mold plateslidable from a charging to a discharging position vand return, said plate having a mold orifice extending through it, a bottom plate for closing the bottom of the mold orifice when'the rnold plate is in charging position, the mold orifice being uncovered when the mold plate is in discharging position, means for charging the mold orifice, and a plunger for ejecting the formed piece from the mold orifice when the mold plate is in discharging. position, said plunger having a concave acting surface and a thinned rim adapted to scrape the sides of the mold orifice, and simultaneously configurate the top of the piece.

1-1. A depositing machine having a mold plateslidable from a charging to a discharging position and return, said plate having a mold orifice" extending through it, a bottom plate for closing the bottom of the mold orifice when the mold plate is in charging I sition, the mold orifice being uncovered when the mold plate is in discharging pos1- tion, means for charging the mold orifice, a

plunger for ejecting the formed piece from Y the mold orifice when the mold plate is in discharging position, said plunger having a thined rim adapted to scrape the sides of the mold orifice, and simultaneously configurate the top of the piece, and means for intermittently supplying a lubricant to the acting surface of the plunger.

12. Adepositing machine having a mold 'plate, slidable from a charging to a discharging position and return, said plate having a mold orifice extending through 1t, means. for covering the bottom of the mold ."orifice when the mold plate is in charging position, and for uncovering it when the mold plate is in discharging positlon, means for charging the mold orifice, a plunger for ejecting the formed piece from the mold orifice when the mold plate is in discharging position, a duct leading to the acting sur-' face of the plunger for conveyin lubricant thereto, a valve for controlling t e flow of lubricant in said duct, and correlating means for moving the mold valve in timed relation.

13. A depositing machine having a mold plate and the plate adapted to occupy a charging and a.

' scribed my 'name.

discharging position% said plate having a i I I mg water to the concave bottom of the ejec- I tor while the same is closed by the mold plate.

14. A depositing machine having a mold plate provided with a mold cavity, and ca-- pable of occupying a charging and a discharging position,-means for charging the mold plate, an ejector for ejecting the formed piece from the mold cavity when the latter is in discharging position, and means for lubricating the 'actmg surface of the ejector, said means including a controlling valve, a controlling bar for actuating thevalve, a. detent for moving said bar in one direction, an arm for. actuating said detent,

means for causingthe disengagement of the arm and detent when the bar has traveled the proper distance, and means for returning said bar to normal position.

In witness whereof, I have hereunto subi,

CLAUDE w. IBUNDEL

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