DE19528964A1 - Fodder mixer spindle with spiral sections - Google Patents

Abstract

The spindle spiral parts are divided into numerous section, with the first one extending continuously. The second spiral section comprises spaced segments (3), whose blades are fitted with cutters (5) such that the spiral turns are intermittent. The third spiral section is fitted with sword-shaped protrusions.Pref. there is a fourth spiral section with interrupted spiral turns. Typically the cutters are releasably fitted to the segments. The segments may be welded to a central shaft (1) with a relative adjustment angle. The spindle forms a mixing element with segmented spiral sections.

Description

The invention relates to mixers, in particular feed mixers for the preparation of animal feed mixtures.

Feed mixers are used in modern mixing processes for animal feed applied by adding all of the ingredients you want Feed mixture can be added to such a mixer and then a cutting and mixing process takes place to a to obtain a homogeneous mixture.

There is a need to feed large quantities for cattle to provide, the feed from natural, long-fiber materials such as hay, cereal grains, alfalfa (Alfalfa maize) as well as ordinary straw and long-stemmed silage is to be produced and possibly from others Lining materials containing similar amounts of fibers or Straws included. Cattle are preferably made with a mixture fed the above feed.

Traditionally, this material, some of which is in pressed bales are placed in the mixing container, after the bundle or bale is opened and loosened up were. During the mixing of the material, the different types of components with each other Mixing units mixed, which have spindles that can be designed like a snail.

Experience has shown that the effects of conventional Spindles was not completely satisfactory because of that output product not completely the desired or had the necessary feeding properties because of this material was difficult to process.

In addition, fibers and hay if not clean be cut, just along the snail-like Spindle conveyed without being mixed together.  

FR-PS 2 570 635 describes a mixing screw with a Structure that of that of the spindle according to the invention resembles. To address some of the difficulties above overcome and effectiveness in cutting the feed too improve the cutting edge of the worm with a Provided a plurality of cutting wheels. However, experience has shown that the high number of cutting wheels strong is under pressure and therefore the cutting wheels are light break and be replaced due to wear and tear have to.

A comparable arrangement is in NL 9000-586 A. described, according to which the snail a plurality of Has cutting wheels and an additional cutting blade. However, U-shaped parts are provided in the mixers in order to Cutting up the feed contributes, however, through this Parts of the cutting process are actually not promoted and that Cutting wheels have the disadvantages mentioned above.

It is an object of the invention to provide a mechanical device to create, by means of which the mixing process is accelerated and consequently the cost (around 30%) of the preparation of the feed mixture can be reduced.

It is another object of the invention to provide a spindle create that cleanly cut the fibers and hay can to achieve a homogeneous feed mixture.

It is still another object of the invention, a mixer to create which is a homogeneous, loose and not compressed feed mixture generated.

According to the invention, this is achieved by the features in claim 1 achieved. Advantageous further developments are in the Subclaims described.

According to the invention a spindle for use in Feed mixers created, which is a kind of spiral  forming assembly of the spindle from a plurality of Sections is made, the first section is continuous runs, the second section has segments, the blades each of the segments of the spiral together with one Cutting device are arranged and the spiral is not is formed continuously, and the third section one Has a plurality of sword-like projections, all of them are capable of performing several functions, namely:

• a) promote the material forward and
• b) simultaneously cut the material into small particles or dismember, and
• c) eject the particles upwards.

According to a preferred embodiment, the segments are on the central shaft of the spindle at an angle to the The longitudinal axis of this central shaft is welded in a continuous manner. In another embodiment, there is an additional one Section of the discontinuous type is provided.

The invention is based on a preferred Embodiment with reference to the drawing explained. The drawing shows:

Figure 1 shows an embodiment of an assembled, non-continuous spindle according to the invention.

FIG. 2 shows a section along the section line denoted by AA in FIG. 1;

Fig. 3 is an enlarged section along the line designated in Figure 1 with section line BB.

Fig. 4 is a perspective view of an arrangement of four spindles;

Fig. 5 shows a further section of the spindles as they are arranged in a mixing container.

Fig. 1 shows a side view of a preferred embodiment of the spindle, which has a central shaft 1 , on which all working elements of the spindle are welded or otherwise fastened.

Section A has a continuous screw from which the feed is removed from the wall of the mixer. In section B, wing-like elements 3 are provided, from which the feed is cut and mixed, with cutting blades 5 being formed on their leading edges. As can be seen in FIG. 3, the cutting blades are fastened by means of screw-nut connections 7 and enable them to be exchanged if this should be necessary. In section C, sword-like or blade-like elements 8 are formed, from which the material is expelled from the mixer.

In the preferred embodiment, a section D is also provided which is of a non-continuous type and in which the angles of attack of the wing-like segments are opposite those in section B to feed the To drive "sword section" C.

In FIG. 4, four spindles are shown in the way they are arranged inside of a mixing vessel to each other. The upper two spindles represent the conventional, continuous screw model, while the two lower spindles are designed according to the preferred exemplary embodiment. The lower spindles are arranged in the vicinity of the lower end of the wall 9 of the mixing container in such a way that the material to be mixed is cut cleanly.

FIGS. 4 and 5 show four screw spindles as they are mounted in the lower part of the mixer. The upper spindles are of a continuous type, whereas the lower spindles are made according to the invention. As can be seen, the lower spindles are arranged near the bottom of the mixing container 9 , so that all the material to be mixed is cut appropriately.

Claims (6)

1. Spindle for feed mixer in which the screw parts in a plurality of sections are distributed, the first Snail section runs continuously, the second Screw section spaced apart segments the blades of which are equipped with cutting means, such that the screw turns here are discontinuous, and the third screw section sword-like projections having. 2. Spindle according to claim 1, characterized in that each of the segments ( 3 ) is provided with cutting devices ( 5 ). 3. Spindle according to claim 1 or 2, in which a fourth Section of discontinuous screw turns is provided. 4. Spindle according to one of claims 1 to 3, characterized in that the cutting devices ( 5 ) are detachably attached to the segments ( 3 ). 5. Spindle according to one of claims 1 to 4, characterized in that the segments ( 3 ) on a central shaft ( 1 ) with an angle of attack relative to the central shaft ( 1 ) are welded. 6. Feed mixer, which with at least one mixing element is equipped, the screw element a plurality of Has segments.