DE1201273B - Kneading and mixing tools, especially for dough mixers - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

Number:
File number:
Registration date:
Display day:

A21c

German KL: 2b-2/02

1201273
K54677III / 2b
November 23, 1964
September 23, 1965

For kneading and mixing dough, many automatic devices are known to knead and Mixing can be carried out reliably at the same time and in a very short time.

The new kneading and mixing tool is used in those dough kneading machines where in a tub on an approximately vertical, preferably motor-driven shaft at an axial distance wing knives are arranged from each other. The drive motor is known for such kneading mixers for the shaft to be suspended from the frame underneath the bottom of the vat. But also other shaft drives are possible and common.

Such kneading mixers are installed at the correct working height on a frame, theirs The upper opening can be tightly closed by means of one or two lids, the inner one of which is for observation of kneading mixing can be transparent.

Many proposals have been made to simplify the kneading and mixing process accelerate.

The wing knives were given a special shape, with an adjustable angle in the Shaft was used, the vat was equipped with special ribs and other tail units to To improve kneading and mixing.

The new kneading and mixing tool, especially for dough mixers, improves the design with im axially spaced rigid agitator blades, which axially on a rotate approximately vertical, preferably motor-driven shaft in a smooth-walled tub.

The new tool is based on the knowledge that the kneading and mixing process is physical Reasons based on a dough movement that forms a circular ring around a roughly in the middle of the tub horizontally extending annular axis rotates. In general, this rotation takes place counterclockwise, as the dough rises up the walls of the tub and along the corrugated and the mixing shaft is pressed in the direction of the bottom of the tub.

The new solution consists in such a kneading and mixing tool of the known type in which a short spiral that widens downwards around the shaft between the blades is.

It is advantageous to make this spiral conically wound as a spring made of wire.

According to a further development, the wing blades are connected to the spiral.

Kneading and mixing tools, especially for
Dough mixer

Applicant:

Kate Kemper, Neuenkirchen, Langestr. 8-10

Practice has shown that with such a design of the kneading and mixing tool in Very different types of dough for an extremely short time, as they are especially in modern bakeries be used, kneaded and mixed very quickly and thoroughly. The dough is from above obliquely downwards and then pressed towards the outer wall of the tub, the shaft is constantly standing under the thrust of the dough, so that the dough is not held in the shaft and this too is easy to keep clean in continuous operation. It is particularly advantageous that the through the spiral housing initiated forced circulation of the dough is effective even with small and medium amounts of dough. In In this case, the open spatial spiral proves to be advantageous. The dough moves diagonally into the Spiral into it. This effect occurs even if the amount of dough is so small that the upper Knife is hardly or not at all covered by the filled dough. This effect has the further Advantage that when using the new kneading and mixing tools, the height of the knives is not adjusted need to become.

With the new kneading and mixing tools, the wing knives largely do their job Relieved as a stirring tool, they are primarily used for kneading, while the stirring is now in the Forced rotation set in motion by the rotation of the knife and by the revolving spiral housing is kept going.

The new kneading and mixing tool is in the drawing in a preferred embodiment shown.

F i g. Fig. 1 is a side view of a kneading mixer for dough with the tub in longitudinal section;

F i g. Fig. 2 is an enlarged side view of the new kneading and mixing tool;

F i g. Figure 3 is a top plan view of the tool of Figure 3;

Fig. 4 is a section along IV-IV of Fig. 2, viewed in the direction of the arrow.

One recognizes in the figures a vertical shaft a, which can be plugged onto the shaft of the motor i

509 688/2

is and revolves in the vertical main axis of the tub d. Two wing knives b and δ ¹ sit opposite on the shaft «. In the usual way, the knife b is arranged near the bottom of the tub d, the wing ^{knife b 1} at a selectable, but small distance above it.

A spiral housing c is formed around the shaft α and rotates together with it. As can be seen in FIGS. 2 and 3, according to a preferred embodiment, the housing extends in the form of a spring between the wing blades b and b ^{1 in} such a way that the spiral springs are fixed to the frame with the surfaces of the wing blades b and b ^x or in them Surfaces run. The volute casing expediently has a conical shape, as can be seen in FIGS. 2 and 3.

The knives can, as shown in FIG. 4 shows have a screw thread near their outer end. This screw thread b and b ¹ is designed in opposite directions. In addition, the kneading mixer in which the new tool works is designed in the usual way in such a way that all operating handles lie one above the other on one side, namely the preferred right-hand side, as shown in FIG. 1 can be seen. One can see the toggle / for operating the swivel cover e, the handle g for switching the motor and the handle h for swiveling the tub in its frame, one below the other. In the exemplary embodiment, all handles are expediently designed as toggles.

Since the new kneading and mixing tool succeeds in controlling the movement of the dough in a forced operation, the sliding of the dough cleans not only the shaft but also the inner surfaces of the tub d by the preferred thrust. After a simple cleaning, a kneading mixer with the kneading and mixing tools can be used in quick succession for large quantities and small quantities of dough of various compositions.

Claims (3)

Patent claims: 1. Kneading and mixing tool, especially for dough mixer, which rotates axially on an approximately vertical, preferably motor-driven shaft in a smooth-walled tub with axially spaced rigid agitator blades, characterized by a around the shaft (a) between the blades φ, b ¹ ) short spiral which widens downwards (c). 2. kneading and mixing tool according to claim 1, characterized in that the spiral (c) as Spring made of wire is conically wound. 3. kneading and mixing tool according to claim 1, characterized in that the blades (b jb ¹ ) are connected to the spiral (c). Considered publications:
German patent specification No. 926 121. 1 sheet of drawings 509 688/2 9.65 © Bundesdruckerei Berlin