US1800852A - Machine for forming wafer cornets - Google Patents

Description

April 14, 1931. c. WINZER 1,800,352

MACHINE FOR FORMING WAFER CORNETS Filed Feb. 7. 1929 4 Sheets-Sheet 1 April 14, 1931. c. WINZER 1,

MACHINE FOR FORMING WAFER CORNETS I Filed Feb. '7. 1929 4 Sheets-Sheet 2 April 14, 1931. c. WINZER CHINE FOR FORMING WAFER CORNETS 4 Sheets-Sheet 3 Filed Feb. 7, 1929 711 yen for;

Filed Feb. 7, 1929 4 Sheets-Sheet 4 Fig.5

Myenfor:

Patented Apr. 14, 1931 UNITED STATES CUR! WINZER, 0F HAL-BERSTADI, GERMANY MACHINE FOR. FORMING WAFER CGR'NETS Application filed February 7, 1929, Serial No.

This invention relatesto amachine for forming square wafer blanks into cornets and consists in the provisionof an intermittently moved endless chain or the like to which conical cores are so connected thatthey can be deflected from a normally vertical position into contact with a laterally disposed mould composed of two hingedly connected halves, meansbeing provided for feeding the Wafer blanks automatically on tosaid mould sothat their diagonals coincide with the hin e, and for closing the mould together 1 a blank about each core, means being also provided for pressing together and joining the abutting edges of the blank on the core.

Fig. 1 ofth-e accompanying drawings represents a side view of the apparatus,

Fig. 2 is a top view of. the same,

Fig. 3 is an end view in section on the line III-4H ofFig. 1 showing the means" for moving the cores and for connecting the edges ofthe blank,

Fig. 4, a section on the line IV-IV of Fig.

i 1' showing the blank feeding mechanism and the means for deflecting the cores,

Fig. 5, endview showing the stripping brushes and the delivery device for the finished articles,

Fig. 6 is a section on the line VI-VI of Fi 1 showing the main driving mechanism.

ihe machine comprises. a main shaft 14 which receives motion through the medium of a helt pulley 15 and transmits it by means of" a pinion 13- and a gear wheel 12 to a cam shaft 31. The gear Wheel 12 also communicates rotation to a wheel 11 which operates, by means ofbevel gears 9 and 10 and a usual driver, a Maltese cross 8 mounted on a shaft 45. The latter and another shaft 3, fitted in adjustable bearings 2 at the opposite end of themachine frame 1, carry sprocket wheels 5" and 6 whereon an endless chain 7' is sup-.

. ported. Equidistant brackets 16' on the chain carry conical cores whereon the cornets are to be formed. The cores are mounted on stems 19 and supported in the brackets 16 by meansoftrunnions 18 connected to said stems, the arrangement being such that the cores can be deflected at right angles to the radial 338 230, and in Germany February 10, ices.

plane of theconveying chain. Normally the cores are maintainedwithin said plane. by a guide rail 21 which engages rollers at the free ends of the stems 19. One section 22 of the guide rail is detached and mounted in a pair of toothed segments 24 Wh-ich are coaxial with the trunnions 18 and which can be turned in guides 35a together with the rail section andthe core in engagement with it into the position shown. A how 23 connects the two ends of each segment 24. The seg ments'24 mesh with and are controlled by sectors 2'6 whichare mounted on a shaft 25 and operated by a cam disc through themedium of a link 27 and a double-armed lever 29 mounted rotatably on a shaft 28.

When a core is placed in the position shown at the top of Fig. 3, it coincides with the hinge of a conical mould 4O composed of two hingedly connected halves. The mould halves are controlled by links and 51 which are pivotally connected to the mould halves and to a vertical bar 46 which is arranged to slide in a support 48. The bar is divided by a joint 47into two parts,the lower one of which is pivoted to a bell crank 44 mounted rotatably on the shaft 28. This bell crank is operated by acam disc 42 so asto' reciprocate the bar 46- for closing the mould halves about the core 17 Opposite the mould 40 a container 39 is mounted for the reception of square wafer blanks. A slide 38 is reciprocated across the bottom of the container so asto feed the blanks one one onto the mould, the arrangement being such that the blanks come to rest on the mould with their diagonals over and parallel to the hinge. The slide 38is connected by links 36 and to lever arms 34 and 35 respectively which are secured to the shaft 28. The latter is rocked by anarm 33 which engages in a cam groove in a disc 32.

The cornets are formed by. the mould halves 40, which for thispurpose coil the blanks around and press them to the core 17. The free edges of the mould halves do not meet but leave a gapbetween themthrough which a tool can he admitted for joining the" abutting edges of the wafer blank so as to completethe cornet. This joining tool con 7 serving as a matrix for a stamp whereby a name or the like is impressed on the joint. The arm 61 rocks about a pivot and is controlled by a cam disc 43 which actuates a bell crank 57, mounted rotatably on the shaft 28. One arm of the bell crank isconnected by means of a ball joint 55 to a bar 53, which transmits the movement to the arms 61.

All the cam discs are mounted -on...the

. the blank on the mould, means for operating A pipe 71 supplies steam or a water spray whereby the wafer blanks are moistened sufficiently to' allow of being coiled round the core, the spraying nozzle 70 being arranged so as to play container 39.

The machine is dium of a hand lever em.

on the lowermost blank in the The cores with the formed cornets are taken by the chain through a channel 62 through which hotair is passedor wherein heating elements are arranged'so as to dry the cornets before they are delivered; The

delivery is efiected by means of brush rollers 66 and 67 between which the cores stop in an inverted-position." The brush rollers are, mounted on shafts Gland and receive mo tion from the shaft 31 through the medium of a belt gearing 68. An elevator 69 is arranged so. as to receive the stripped-01f .cornets and convey them out of the machine. The action is as follows: a The conveyor chain is moved intermittently by means of the Maltese cross 8 and stops the cores 17 opposite the mould 40' with their guide rollers 20 in engagement with the mov able .railsection '22. The freshly baked wafer blanks are fedonto the-mould as previously described, and;each coreis, after the stoppage, deflected through the medium of the segments 24, so as to come to rest on the wafer blank on the mould. Then the mould halves are operated so as to close the blank about the core and form the cornet, whe reupon .the stamp .61 .is operated so as to enter the gap between thelmould halves and press the two edges of the blanks together and :join them; Then, the mould is re-opened,

and the cores restored to the" upright position whereupon a new blank is fed onto-the open mould, and the chain moved so as to bring the next coreinto operative posit-ion. The.cornets are taken by their cores through the drying channell62 atthe end of which they are stripped off by theibrush rollers and depositedon the elevator 69, whereby they are conveyed out of themachinep Iclaim: V v

1. A machine for formingsquare wafer blanks into cornets, comprising an endless chain, conical cores supported on said chain so as to allow of being oscillated'in planes at right angles; to the chain, controlling means started through themefrom the container.

for the cores supporting them normally in the radial plane of the chain, a conical mould divided into two hingedly connected halves stems engaging said'rails.

V '3. A machine as claimed inclaim 1, wherein the means-for deflecting the core over the" mould comprisestoothed segments arranged co-axially with the point. about 'which the cores. are deflected, a guide rail sectionlcafl. ried by said segments,..a ]stem on thecor. adapted to enter intoveng'ageinent with the said rail section, and. means for gturning the segments andrail section togeth r-wit core. Y

4 A machine as claimed inclaim I wherein, the operatingmeans for the .mouldhalves 7 comprises aicamand leversandconnecting rods. l

5'. A machine as claimed in claim 1 where n thepressure applying means comprises ajpivi oted arm, and acam. and lever adapted tooperate said arm so as to press itiagainstlthe core overthe abutting edges of theblank.

6. A machine as claimed inclaim 1 wherein the pressure applying means comprises; a pivoted arm, a sealing" bar. connected to said arm, and a cam and leverad'apted to operate said arm so as to press the sealing baragainst the core over the abutting edges of the blank.

7. A machine as claimedin claim l wheree' r in the pressure applying ,means comprises a pivoted arm, a sealing bar connected ex cha-ngeably to-said arm, and acam and lever adapted to operate said arm' so as to press the, sealing bar against the coreover the abutting, edges of the blank. M A i chine claimed in cla'imil i come bination with a container for the wafer. blanks, and means formoisteningthe wafers,

as they arrive inthe lowermostposition in the container, the feeding means comprisinga slide adapted toeject the blanks one by one;

, 9. The machine claimedinclaimd in com bination with a drying channel built around part'of the path along whichthe corestravel

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