RU1789267C - Cutting device for disk-type meat-and-bone raw material mincer - Google Patents

Abstract

Usage: in devices for grinding in meat, construction, mining and other industries. SUMMARY OF THE INVENTION: the raw meat is fed to a rotating disk 1, on the surface of which the windows 3 are radially made, knives 4 and 5 are fastened with bolts 3 on both sides of the windows with parallel grooves made on the inner surfaces, the axes of which are intersected in the assembled cutting pair , and the angle between the axes of the grooves and the perpendicular to the radius of the disk is 20 ... 30 °; moreover, holes are additionally made in the disk at an angle of 80 ... 84 ° to its horizontal surface. The blade of the upper knives 4 is cut into the supplied raw raw material, cut into chips, then the raw material enters the mounting space guided by parallel grooves of the knives 4 and 5. Upon further supply, the raw material increases the pressure in front of the blade, under which the raw material located in the inter-knife space, wedges and slides the material. By means of the openings 8, air is taken from the working chamber, which is necessary for removing the crushed particles of raw materials from the sub-disk space. Already crushed particles are discharged from the working chamber along with air, mine discharge windows 2. The making of openings with an inclination ensures their participation in the active grinding by sharp edges of the openings, silt. with C

Description

The invention relates to the structural elements of devices for grinding raw materials in the preparation of feeds for fur-producing feedstuffs of livestock farms and can be used in meat, construction, mining and other industries.

The closest technical solution is a cutting device for a disk chopper of raw materials containing a disk, on the surface of which windows are radially made, knives mounted on both sides of the windows.

A disadvantage of the device is low productivity and poor feed quality.

The purpose of the invention is to increase productivity and improve feed quality.

This goal is achieved by the fact that in the cutting device to the disk chopper of raw materials containing a disk on the surface of which the windows are radially made, knives mounted on both sides of the windows, parallel grooves are made on the inner surfaces of the knives, the axes of which are located with the crossing in the assembled cutting pair, and the angle between the axes of the grooves and the perpendicular to the radius of the disk is 20 ... 30 °, while the holes are additionally made in the disk at an angle of 80 ... 84 ° to its horizontal surface.

Figure 1 shows a General view of the cutting device to the disk chopper m raw materials; figure 2 is a diagram of the forces acting on a particle of the raw material B of the grinder; in Fig.3 is a diagram of the forces acting on a particle of raw materials in a horizontal plane; figure 4 is a section aa in figure 1;

figure 5 - knife; Fig.6 is a section bB in Fig.5.

The cutting device contains a disk 1 with radially made windows 2, on both

the sides of which are bolted 3 by knives 4 and 5, the knife 5 being installed in a special recess 6 in the disk 1. On the inner surfaces of the knives 4 and 5, parallel grooves 7 of rectangular cross section are made

which in the assembled cutting pair intersect each other. Holes 8 are made in the disk 1 to create additional air flow, evacuation of the crushed raw materials and additional cutting edges with an inclination angle of 80 ... 840.

The cutting device operates as follows.

The raw material to be ground is fed to a rotating disk.

1. Raw materials, by multiple percussion

impact with blades, knife 4 and sharp

the edges of the holes 8, is cut in the form

 shavings. Under pressure again cut

raw material, it passes further into the inter-knife space. Moving along the parallel grooves of 7 knives 4 and 5, the raw material is wedged out due to the destructive contact stresses arising in it, additional grinding of the raw material occurs. In this case, the cutting edges are the edges of the grooves 7. The meat cuts, cores, etc. are especially intensively crushed.

Using holes 8 made

at an angle of 80 ... 84 °, the air needed to evacuate the crushed raw material is sucked into the sub-disk. In addition, the sharp edges of the holes are involved in active grinding, affecting the raw materials pressed to the disk by its own weight.

Claims (1)

SUMMARY OF THE INVENTION A cutting device for a disk chopper for raw meat, comprising a disk on the surface of which windows are radially made, knives mounted on both sides of the windows, characterized in that, in order to increase productivity and improve quality feed, parallel grooves are made on the inner surfaces of the knives, the axes of which are located with a crossing in the assembled cutting pair, and the angle between the axes of the grooves and perpendicular to the radius of the disk is 20-30 °, while holes in the disk are additionally made at an angle of 80 -84 ° to its horizontal surface. pwr.J f-g A-a ft: g, 5 J5; 6 y & yepichyo tso