EA010491B1 - Perforated grinder grate - Google Patents

Abstract

The invention relates to devices for processing foodstuff products, in particular, to grinding meat, fish and other products and can be used in meat-processing industry.The invention is aimed at reducing cutting efforts, simplification of manufacture, preventing wedging and crushing of meat products, increasing effectiveness of product cutting and improving its quality due to lesser meat crushing.The prior art the perforated grinder grate comprised a plate (1) intended for interacting of one of its sides with a rotating blade (5) of the grinder and having apertures (3) arranged inclined to the plate normal towards the direction of the blade rotation, the edges of which on said plate side form cutting edges for grinding a food product, wherein according to the invention the plate apertures are embodied conical extending to the plate second side, and the edges (4) of the apertures arranged on the plate first side, opposite to the cutting edges, are rounded.There are some other differences from a prototype.

Description

The invention relates to devices for processing food products, in particular to the grinding of meat, fish and other products and can be used in the meat processing industry.

A known grille to a device for grinding meat and bone raw materials [1], which contains a disk with a central seat for mounting and holes arranged in concentric rows in the slots, in which the grooves are made along the entire length of the disk tangentially inclined to the central seat and at the same time have cross-sectional shape of a semicircle with a diameter greater than the diameter of the throughput holes.

The disadvantages of the described lattice is the low efficiency of the grinding process.

Also known is the cutting unit of the device for grinding materials [2], containing a grid with holes arranged in concentric circles, and a knife made of blades connected in the shape of a cross, the cutting edges of which are formed by the intersection of inclined holes that are located in the same concentric circles as and the lattice holes and are made with a diameter equal to the distance between the diameters of concentric circles, on the side of the lattice facing the knife, a blind hole is made that overlaps th zone.

The disadvantages of this device is the low efficiency of the grinding process, part of the meat is not chopped by cutting, and crushed.

Also known grille for meat grinder [3, 4], made in the form of a plate with round holes arranged with an inclination to the plane of the lattice in the direction opposite to the direction of rotation of the knife.

The disadvantages of these grids is the low efficiency of the grinding process, the crushing of meat.

Known cutting device for meat grinder [5]. The device consists of a plate with holes located over the entire surface of the disk, surrounding the central hole of the disk.

The disadvantages of these grids is the low efficiency of the grinding process, the crushing of meat.

The prototype of the invention is the cutting unit grille [6], made in the form of a plate with round holes arranged evenly in concentric circles inclined to the grid plane in the direction opposite to the knife rotation direction, with the number of circles being equal to at least four with the distance between the diameters, equal to 0.40.6 diameters of the holes.

The disadvantages of this device is the low efficiency of the grinding process, the crushing of meat.

The present invention is to reduce the cutting effort, ease of manufacture, preventing jamming and crushing meat products, increasing the efficiency of grinding the product, as well as improving the quality of the meat product by reducing the crushing of meat and improving the permeability of ground meat through the grid.

The problem is solved by the fact that in a well-known perforated grinder grating, which is a plate, designed to interact with one of its sides with a rotating chopper knife and having openings inclined to the plate normal in the direction of rotation of the knife, the edges of which on the indicated side of the plate form cutting edges for grinding a food product according to the invention, the holes of the plate are made conical with a cone angle extending to the second side of the plate, and the edges of the size ennyh holes on the first side of the plate opposite the cutting edges are rounded.

The angle of the cone of the plate holes can be from 2 to 5 °, and the angle of inclination of the axis of the holes to the plate normal is from 6 to 15 °.

The invention is illustrated by drawings.

FIG. Figure 1 shows the front view of the grille.

FIG. 2 is an enlarged view of a single hole (view I, FIG. 1).

FIG. 3 - A-A of FIG. 2 with a movable knife.

FIG. 4 is a view of a hole with a rounded edge.

The grinder grinder is made in the form of a plate 1 having central holes 2 for fastening it on the device shaft (not shown) and holes 3 for chopping and passing meat. The grinder grate is fixed on the device shaft by means of central holes 2. Holes 3 are inclined at an angle of 6-15 ° to the normal of plate 1. Hole 3 has a rounded edge 4 on the side opposite to the cutting edge. The cutting is carried out using a movable knife 5.

When grinding the product, the volume of the crushed product at the output is larger than the product before grinding. The implementation of the side walls of the holes of the grinder grinder on a conical surface allows to improve the permeability of the crushed product, preventing clogging and clumping of the processed product by increasing the hole area at the exit of the crushed product. In addition, the implementation of the side wall of the hole on the conical surface allows for the angle of the sharpening of the knife-lattice is less than 90 °. Making holes grinder cone with

- 1010491 angle of less than 2 ° will not give positive results. Making holes in the grinder of a grinder along a cone with an angle of more than 5 ° will also not lead to positive results, since an unnecessarily expanded part at the outlet will not be filled with the processed product.

Due to the fact that the axis of the holes is inclined to the plate normal by an angle of 6-15 ° in the direction of rotation of the knife (in the direction of the pressure of the blades of the knife on the meat), their pushing action increases, which leads to better permeability of the minced meat through these holes. In addition, the angle of the taper of the cutting edge of the grill increases even more.

Performing the edge of the hole opposite the cutting, rounded allows you to improve the passage of the crushed product and prevents tearing of the processed product. When rounding the edge opposite to the cutting edge, the coefficient of friction of the stuffing on the edge is significantly reduced compared to the pointed edge.

The proposed grille is easy to manufacture. Despite the large number of tapered holes in the grille and their small diameter, the perforated grinder of the shredder has a high permeability of the crushed product, generally maintaining small cutting forces.

Design documentation has been developed for the perforated grille, and this grille is used on grinding machines Compo, Brest, Belarus.

Information sources:

1. RF patent № 2203139 - cl. В02С 18/36, publ. 04/27/2003

2. RF patent № 2184613 - cl. В02С 18/36, publ. 07/10/2002

3. RF patent № 2136371 - cl. В02С 18/36, publ. 09/10/1999

4. RF patent number 2031722 - cl. В02С 18/36, publ. 03/27/1995

5. US Patent No. 6007007 - cl. В02С 18/36, publ. 11/25/2003

6. RF patent № 2148435 - cl. В02С 18/36, publ. 05/10/2000 - the prototype

Claims (3)

1. The perforated grinder grinder, which is a plate designed for the interaction of one of its sides with a rotating knife of the grinder and having holes located obliquely to the normal of the plate in the direction of rotation of the knife, the edges of which on the specified side of the plate form cutting edges for grinding food product, characterized the fact that the holes of the plate are conical with a cone angle widening towards the second side of the plate, and the edges of the holes located on the first side of the plate ivopolozhnye cutting edges are rounded. 2. The lattice according to claim 1, characterized in that the cone angle of the plate holes is from 2 to 5 °. 3. The lattice according to claim 1 or 2, characterized in that the angle of inclination of the axis of the holes to the normal of the plate is from 6 to 15 °.