Патент USA US2115799код для вставки
May 3, 1938. J. BRANDT 2,115,799 . MECHANISM FOR DEPOSITING CONFECTIONS'ON WAFERS Filed June '24, 1957 R4 3'» Sheets-Sheet l\ May 3, 1938. J. BRANDT 2,115,799 MECHANISM FOR DEPOSITING CONFECTIONS ON WAFERS Filed June' 24, 1937 J04 J03 7 102 JO 2 27 25 28 29 5 Sheets-Sheet 2 May 3, 1938. ’ ' ( AER/MDT 2,115,799 MECHANISM FOR DEPOSITING CGNFECTIONS ON WAFERS Filed June 24, 1937 “8 Nb 3 Sheets-Sheet 3 Patented May 3, 1938 2,115,799 EJNITED STATES PATENT OFFICE 2,115,799 MECHANISM FOR DEPOSITING CONFEC TIONS ON WAFERS John Brandt, Chicago, Ill., assignor to Salerno Machinery Company, Chicago, Ill., a corpora tion of Illinois Application June 24, 1937, Serial No. 150,099 4 Claims. (Cl. 107—28) My invention relates to machines for deposit valve-governed, leading to the smaller hopper, ing coatings of soft plastic confections, such as which may be termed the jelly hopper. As icings, jellies, and the like upon baked wafers or cookies to produce coated or deposit goods. The 5 present invention relates to improvements in the depositing mechanism of such a machine as that shown in Salerno Patent No. 1,801,573, dated April 21, 1931, and has to do with changes brought about by the provision of additional parts where 10 by the functioning of the depositing mechanisms is made more uniform and regular. In the fol the jelly hopper, and a stationary rear forcing other parts of the machine improved upon as will be necessary for a clear understanding of the chamber wall 25, both parallel with the partition wall 23, and with the intersecting hopper walls 15 same, and in the appended claims I have set at the ends ‘of the hopper providing two forcing vertical section in a plane extending transversely 20 of the hopper and longitudinally of the machine, the plane of the section being indicated by the dotted line |—| on Fig. 3; Fig. 2 is a left side elevation of the same por tion of the machine shown in Fig. 1; - Fig. 3 is a rear elevation of the upper portion of the machine viewed from a plane just to the rear of the hopper structure, parts of the hopper casing being broken away to show parts behind them; and 30 Fig. 4 is a detail vertical section showing my in vention applied to the icing mechanism only, and showing a position of the forcing plunger and valve opposite to that shown in Fig. 1. Like reference characters identify like parts in 35 all the ?gures of the drawings. 40 45 50 55 partition 23, separating the icing hopper from lowing speci?cation I have described my present invention and improvement together with such forth the essential elements of my invention. In the accompanying drawings Figure 1 is a 25 sociated with each hopper is a reciprocating plunger or pumping member cooperating with the valve member of the particular hopper to pump 01 charges of confection from such hopper through the nozzles to coat the cakes. As in the case of the machine described in said Salerno Patent No. 1,801,573, the hopper struc ture is formed with an approximately central chamber wall 24 and a stationary front forcing chambers within which severally work the ver tically reciprocating ?at piston or plunger 26 of the jelly depositing mechanism, and the simi lar plunger or piston 2'! of the icing depositing 20 mechanism. Below the plunger 26 and rotatably mounted in the stationary members of the forcing mechanism is arranged the rotary ?at-sided valve member 28 of the jelly depositing mechanism and the similar rotary valve 29 of the icing depositing 5 mechanism, each provided with teeth forming a gear at one end of the valve member and the toothed portions of the two members being dis posed at opposite sides of the machine. The icing plunger or piston member 21 is re ciprocated by means of a pair of eccentrics 40 on a driven shaft 32, vertical connecting bars 4|, rocking adjusting frames 42, and a pair of con necting rods 44 pivoted to opposite ends of a cross-head 45 slidingly mounted in a guide frame 35 For the purpose of facilitating an understand 41 above the double hopper structure, and con ing of the present invention a brief preliminary nected by bolts 46 to the upper ‘side of the piston. description of the organization of the machine The icing valve 29 is rotated in synchronism will ?rst be given. ‘with the piston movements through a cam 52 se The wafers to be deposited are carried forward cured to the shaft 32, a rocking lever 54, a con 40 ly through the machine on an endless intermit necting rod 55, and a bell-crank 5'! having a tently movable feed belt I passing over the top vertical member 51a connected to a sliding hori of a rocking table 2, which is given an inter—‘ zontal rack-bar 58 cooperating with the toothed mittent lifting movement of determinable ex end of said valve 29. The timing of the plunger tent to bring the rows of wafers, one row at a and valve movement is such that the plunger will time, into proximity with a cross-row of deposit begin to ascend an instant before the valve closes ing nozzles, the depositing operations occurring communication through the nozzles, with the re at the periods of rest of the belt in its forward sult that formation of a nipple of confection upon movement. the top of the deposit is prevented. The deposits of one confection are made The jelly plunger or piston 26 is operated 50 through a central nozzle a, having valve~governed through a cam 59 adjus'tably secured (through communication with one supply hopper,—in the means not illustrated) to the shaft 32, a rocking present instance the larger one, usually used for adjusting frame 60, a connecting rod 5!, a rock the deposit of icing,--andlthe other a concentric arm 62 and rock shaft 63 carrying a pair of rock outer nozzle providing an annular passage, also arms 64-454 connected by links 65-65 to a cross 55 2 2,115,799 I‘ head 86 slidingly mounted in the guide frame 41 and connected by vertical bars 81 with the piston. The jelly valve 28 is operated by a cam 68, also adjustably secured to the shaft 32 through means for simultaneous adjustment with the cam 59 through means not illustrated, a rocking lever 69, a connecting rod ‘I8, and a bell crank 1| hav ing a vertical arm connected to a sliding horizon tal rack-bar 72 arranged to mesh with the toothed 10 end of said jelly valve. _ The table 2, it may be stated, is supported and intermittently lifted to a determinable extent through a triple-faced cam adjustably secured to a shaft 93 having geared connection with the 15 shaft 32, and arranged through a cooperating cam roller carried by arms 88 upon a yoke 85 loosely mounted on a rock shaft 55 and through a lug 86 on said yoke and a block 83 secured to: such rock shaft to rock such shaft and a pair of 20 arms 82 also secured thereto, and through a pair .of links 8| pivoted to the ends of such arms to raise and lower the table to an extent determined by the particular face of the cam. Coming now to the modi?ed construction of 25 the depositing mechanism which forms the sub ject matter of the present invention, it will be understood that my invention may be applied either to the icing depositing mechanism, or the jelly depositing mechanism, or both. In deposit 30 ing machines of the prior art, constructed in accordance with the disclosure and teaching of the Salerno patent above mentioned, it has been found in practice that certain defects exist, found usually to a greater extent in the icing de positing mechanism than the jelly depositing mechanism, though in some measure inherent in both. The icing (or other confection) in some instances tends to thicken, and clog around the entrance passage to the rotary Valve, particularly 40 when a somewhat stiff and heavy confection is being operated upon, and it is frequently neces~ sary to manually scrape down the partially caked matter from the sides of the hopper and stir it up in this region. Another defect arises from .45 the fact that when operating the machine at full speed the suction induced by the upward move ment of the piston in the forcing chamber im mediately after the momentary initial suction which draws back the ?nal nipple of confection 50 from the top of the deposit and at the time the valve is beginning to open communication be tween the supply hopper and the forcing cham ber, is under some circumstances insuflicient to induce a free and rapid flow of the somewhat 55 thick and viscid confection into such chamber sufficient to entirely ?ll it during the upward movement of the piston, with the result that a rare?ed void remains which upon the next down ward movement of the piston acts to produce an 60 imperfect and wrinkled deposit of confection upon the wafers. Should the confection be un usually stiff, and become clotted, the tendency to imperfect functioning of the machine is fur ther intensi?ed. It is the object of my inven 65 tion to maintain a smooth uniform consistence of the confection adjacent the lowermost portion of the hopper, and bring about a free and ade quate ?ow of the confection from the hopper into the forcing chamber to ?ll it properly under all 70 conditions, so that when the charge from the chamber is forced through the valve and nozzles of the machine perfectly formed deposits of con fection will be made. To this end, and describing ?rst the mechanism 75 for depositing the icing, I provide a supplemen tary pumping member consisting of a vertically j reciprocating plunger I88 arranged immediately above the valve opening covered and uncovered by the icing valve 29, this plunger being housed in a chamber formed by the forward face of the front forcing chamber wall 25, and a second par allel forward wall I 8| secured to the hopper walls at the sides of the machine, and the portions of such side hopper walls lying between the walls 25 and IN. 10 This supplementary pumping member I88 is arranged to move downwardly as the plunger 21 moves upwardly and while the valve 29 opens communication between the hopper and the forc ing chamber, and to move upwardly while com 15 munication is closed between the hopper and forcing chamber and while the confection is being extruded through the valve passage and deposit ing nozzles. The result is a vigorous pumping action of the confection as it is pumped into and 20 out of the pumping chamber below the plunger I88, which upon the downward stroke of the plunger drives the confection beneath it in one stream toward and through the valve opening and at the same time drives excess confection in 25 another stream underneath the partition HM, and upon the upward stroke‘ of the plunger draws‘ the confection into space below, and then exerts a stirring effect on the confection adjacent the valve opening which aids materially in keeping 30 the confection of uniform consistency and free from clots tending to cause irregularity in the functioning of the forcing and valve mechanism. To effect the described movement of the sup plemental pumping member I08, I have provided 35 a pair of oscillating levers I82—I82, which are intermediately pivoted upon a cross-bar I83 ex tending between and secured to the side walls of the hopper structure, the levers being pivotally connected at their inner ends to links IDA-I84 to which are pivoted also to the cross-head 45 of the icing depositing mechanism and at their outer ends are pivoted to links I88a pivotally connected with lugs formed on the top of the member I88. 45 The mechanism for depositing the jelly or ' other confection is substantially the same in con struction and arrangement, and includes the sup plementary pumping member I85, reciprocating in a chamber enclosed by the forcing chamber 50 wall 24 and a parallel rear wall I86 and por tions of the side walls of the jelly hopper, the pumping member being reciprocated by means of a pair of oscillating levers I8'I-I8'l inter mediately pivoted to a stationary cross-bar I88, 55 and connected by links I 89—-I89 pivoted to the cross-head B8 of the jelly plunger mechanism and by links II8—I I8 pivoted to lugs upon the top of such plunger member. It will be noted that whatever be the timing 60 of the icing depositing mechanism with respect to the jelly depositing mechanism, the cori ' nections described will at all times cause the sup plemental plungers I88 and I85 to operate in synchronism with the movements of the respec~1 65 tive associated forcing plungers 21 and 26. I claim: 1. In a confection-depositing machine, a con fection hopper having an outlet opening adjacent its bottom, a row of depositing nozzles adjacent 70 said outlet opening, a forcing chamber having an opening adjacent said outlet opening of the hop per, a reciprocating piston closing said chamber above its opening, a valve seated in the hopper structure and arranged to control communica 75 2,115,799 tion alternatively between said piston chamber ‘and said hopper and between said piston cham ber and said nozzles, means for operating said piston and said valve synchronously, a pumping chamber having an opening in said hopper ad jacent said outlet opening of the hopper, a plunger in said pumping chamber, and means for recipro cating said plunger to expel confection from said pumping chamber when said valve is open be 10 tween said hopper and said forcing chamber and to draw confection into said pumping chamber when said valve is closed between said hopper and said forcing chamber. 2. In a confection-depositing machine, a con 3 chamber and said valve synchronously, a pump ing chamber having an opening in said hopper adjacent said outlet opening of the hopper, a plunger in said pumping chamber, and means. for reciprocating said plunger to expel confec tion from said pumping chamber when said valve is open between said hopper and said forcing chamber and to draw confection into said pump ing chamber when said valve is closed between said hopper and said forcing chamber. 10 3. Confection-depositing mechanism according to claim 1 in which the means for reciprocating the plunger in the pumping chamber comprises linkage intermediate the recited piston and said 15 fection hopper having an outlet opening adjacent its bottom, a row of depositing nozzles adjacent 15 plunger. 4. Confection-depositing mechanism according said outlet opening, a flat vertical rectangular forcing chamber having a bottom opening ad jacent said outlet opening of the hopper, a re 20 ciprocating flat piston closing said chamber above its opening, a valve seated in the hopper structure and arranged to control communication alter natively between said piston chamber and said hopper and between said piston chamber and 25 said nozzles, means for operating said piston to claim 1 in which the means for reciprocating the plunger in the pumping chamber comprises a pair of oscillating levers intermediately pivot ed upon a stationary part of the hopper struc 20 ture and a pair of links pivoted to the ends of said levers. and also pivoted to the recited piston, and a pair of links pivoted to the other ends of said levers and also pivoted to said plunger. 25 JOHN BRANDT.