US3459140A - Dough-moulding machines - Google Patents

Description

Aug. 5, 1969 E. s. GASKELL DOUGH-MOULDING MACHINES 4 Sheets-Sheet 1 Filed Sept. 20, 1967 hr [J n-J Jim Icy Gas "t mvsmoa.

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DOUGH MOULDING MACHINES Filed Sept. 20, 1967 4 Sheets-Sheet 3 25 ,9 F765 I za k l6 United States Patent Olfice 3,459,140 Patented Aug. 5, 1969 3,459,140 DOUGH-MOULDING MACHINES Edward Stanley Gaskell, Highbury, Milton Grove, Orrell Mount, Wigan, Lancashire, England Filed Sept. 20, 1967, Ser. No. 669,019 Int. Cl. A21c 11/00 US. Cl. 107-9 4 Claims ABSTRACT OF THE DISCLOSURE A dough moulding machine having a frame comprising a plurality of mould carrying bars. The mould carrying bars are of hollow closed geometric shape in cross-section and the moulds comprise cups closely fitted to the bars.

This invention relates to dough-moulding machines and in particular to the gyratory frames and parts thereof and is an improvement in or modification of the invention the subject of my earlier application for patent in United States No. 3,225,714 such parts being constructed to carry the moulding rings or cups, hereinafter referred to generically as moulds.

The present invention concerns an improved construction for a mould-carrying frame member and frame such as described in the specification of the aforesaid patent and is based upon the appreciation that the hitherto open inverted channel-shaped frame members described therein can result in undesirable accumulation of pieces of dough in the said inverted channel, and that the frame assembly of the said earlier construction could be simplified and improved.

One object of the present invention is a simple and improved construction of mould-carrying frame members and frame which substantially inhibits such undesired accumulation while increasing the strength and rigidity of attachment of the moulds.

Another object of the invention is to simplify and improve the construction of the frame and assembly of its parts.

According to the present invention a transverse mouldcarrying bar for a dough-moulding machine having a frame, carrying a plurality of such bars each adapted to carry a plurality of dough-working moulds, said frame being adapted to be continuously gyrated and cyclically raised and lowered characterised in that each said mouldcarrying bar is of hollow close geometric shape in cross section and by a combined closure and mounting member at each end.

The frame members aforesaid may be tubular or may consist of a box-like assembly of two U-shaped parts fitted one into the other; or of a U-shaped part with a lid fitted thereto.

In the accompanying drawings:

FIG. 1 is a plan and FIG. 2 is a part end elevation taken in part section on line 2-2 of FIG. 1 of one example of a mould-carrying frame for a dough-moulding machine made in accordance with the present invention;

FIG. 3 is a fragmentary front elevation of part of FIG. 1;

FIG. 4 is a cross-section on line 44 of FIG. 1;

FIG. 5 is a cross-section on line 5-5 of FIG. 1;

FIGS. 6 and 7 are external elevation and plan respectively of the cup-shaped moulds shown in FIGS. 1, 2, 3 and 4;

FIG. 8 is an underneath view of the same moulds;

FIGS. 9 and 10 are part sectional elevation and plan respectively of one end of a mould-carrying member and its attached moulds and mounting lugs made in accordance with another example of the present invention;

FIG. 11 is an end view of the closure plug shown in FIG. 9;

FIG. 12 shows a dough-moulding ring.

As shown in FIGS. 1 to 8 the moulding frame assembly of the dough moulding machine is rectangular and consists of side members 10 rigidly connected together by a tubular front member 11 and by a pair of angle members 12 at the rear. Between the angle members 12 are secured dough-receiving ring moulds 13, each secured by four screws 14. In front of the angle members 12 are three mould-carrying members each consisting of an outer inverted channel-section 15 and an inner channel section 16 welded together at 17 (FIG. 4) at suitable intervals avoiding the location of cup-shaped moulds 18 (FIG. 5) to form a hollow box section of closed geometric shape in cross section. Brackets '19 and 20 provide means for attaching the moulding frame to a particular make of dough moulding machine but form no part of this invention. The side members 10 are formed with locating rebates 10a to receive top parts 21 of L- shaped mounting lugs, with depending portions 22 to which the fabricated mould-carrying members 15, 16 are attached. At the required intervals the inner channel 16 is bored to receive the mounting stems 23 (FIG. 5) of the moulding cups 24, the fixing screws 25 which, when tightened, serve also to hold the frame parts tightly together in between the lengths of welding 17 (FIG. 4). As such stems are then supported in the base of each channel part, the moulding cups or rings are more securely mounted against possible tilting or canting. The cups are formed with rectangular bosses 26 formed (FIG. 7) with rebates 27 to fit between the depending flanges of the outer channel 15 so as to locate the cups against rotation. As shown in FIGS. 8 and 5 the lower end of the cup is formed with ribs and intermediate spaces of generally epicycloidal shape. The lower'edge is reinformed by a rim 24a while the crown of the cup is formed with a plurality of vents 24b.

The dough-receiving moulds 13 (FIGS. 1 and 2) are adapted, in known manner to receive pieces of dough from the divider of the machine, not illustrated as it forms no part of this invention. The mould carrying members are adapted to be secured in the rebates of the side members 10 by means of clamping bridges 28 (FIG. 2) and hand wheel nuts 29.

In a modification (not illustrated), the lower of the parts forming the mould-carrying member is a U-shaped channel while the upper part is a lid therefor having only shallow flanges to locate the lid within the sides of the channel and with the top extending over the edges of the channel to complete the external rectangular shape without leaving any ledge. The longitudinal edges can of course be rounded. Strengthening bosses may be provided at the fixing locations for the rings or cups, especially if the parts are made as die-castings.

As shown in FIGS. 9, 10 and 11, the mould-carrying members 30 are of round tubular section in each end of which is a plug 31 formed with a locating shoulder and secured by a grub screw 32 or by Welding as in the previous example. The plugis formed with a flat lug 33 having an elongated hole 34, such lug being complementary to a pair of lugs 35 of an L-shaped bracket 36 the main part of which takes the place of the top part 21 of the previously described construction. A fixing bolt 37 passes through vertically elongated holes 36a in the lugs 35. The elongated holes 34 and 36a aforesaid together enable the mould carrying bar to be adjusted longitudinally and in height. The mould cups 38 have upstanding stems 39 of cruciform shape having a horizontal through hole for threading on to the member 30 where they are adapted to be secured by welding as shown at 40. The mouldcarrying members 30 are adapted to be secured by bridge clamps and hand wheel nuts as described for FIGS. 1 and 2.

As shown in FIG. 12 the mould may be in the form of a ring 41 formed with internal ribs 42 and a pair of lugs 43 adapted to be secured to the tubular member 30 by welds at 44. The rings 41 can conveniently be used to replace the cup-shaped moulds on one or more of the members 30.

The invention is obviously not limited to the examples above described, nor the manner of manufacture, for instance, the longitudinal members could be made from an extruded section instead of by assembly though the assembly method simplifies any machining to form the holes to receive the stems of the dough-moulding rings or cups and also enables the parts of the assembly to be separated for cleaning. Also, the cross-sectional shape of these members may be other than rectangular, for instance, the upper surface may be domed or sloped so that anything falling thereon would tend to fall off, especially as the members will be gyrating with the cups or rings. The outer surfaces of such members, especially the top, may be provided with an anti-adhesion coating such as P.Y.F.E. which has been found to be so effective in reducing adhesion of dough to the rings or cups.

I claim:

1. A moulding frame assembly for a dough moulding machine having a frame carrying a plurality of transverse mould-carrying bars each adapted to carry a plurality of dough-working moulds, said frame being adapted to be continuously gyrated and cyclically raised and lowered, each of said mould-carrying bars being of hollow closed geometric shape in cross-section, cups closely fitted to said bars in such manner that the two eifectively merge 2. A moulding frame assembly as claimed in claim 1, wherein each said bar is constructed of two interfitting channel members forming a hollow box-like bar of rectangular closed geometric cross-section.

3. A moulding frame assembly as claimed in claim 2, wherein said cups are connected to said bars by fixing screws which serve also to secure said channel members together.

4. A moulding frame assembly as claimed in claim 1, wherein said bars are provided with depending flanges into which locate substantially rectangular bosses on said cups to thereby secure said cups against rotation.

References Cited UNITED STATES PATENTS 614,797 11/1898 Dobson.

776,731 12/ 1904 Dietz. 1,948,870 2/ 1934 Pointon et a1. 2,185,948 1/1-940 Pimm 28754.1 XR 2,429,252 10/ 1947 Allen 248-261 2,790,524 4/1957 Herrschaft 52-731 XR 3,050,161 8/1962 Shlager 52731 XR 3,225,714 12/ 1965 Gaskell 107-19 3,362,738 1/1968 Dygert et a1. 28754.1 XR

FOREIGN PATENTS 654,508 6/1963 Italy.

1,001,679 8/1965 Great Britain.

ROBERT W. MICHELL, Primary Examiner ARTHUR O. HENDERSON, Assistant Examiner US. Cl. X.R.

together, and said bars being closed at their ends by a 10719, 54

combined closure and mounting member.

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