RU88991U1 - MEAT GRINDER WITH DOUBLE PROFILE SCREW - Google Patents

Abstract

A meat grinder, consisting of a screw housing with a locking nut, in which a screw, knife and grill are installed, characterized in that, in order to increase the meat grinder's efficiency, the front screw surface of the screw contains two zones with different screw cutting profiles, the first zone being the capture zone - formed by either a concave generatrix or an inclined generatrix, and the second zone — the transportation zone — is made in the form of a rectangular thread in the cylinder of the screw housing.

Description

The invention relates to devices for grinding, namely to meat grinders and is used in the food industry. This invention can also be applied in extruders and other screw mechanisms.

Known meat grinder, including a cylindrical auger body with a loading hopper, auger, knife, grill and locking nut. In these meat grinders, the front surface of the screw turns is made along the entire length either at an angle to its axis, or along a concave generatrix. In known meat grinders in the feed capture zone, the front screw surface of the screw does not differ from the front screw surface of the screw in the transport cylindrical part of the screw, however, the mode of capture of raw materials differs from the mode of transportation of raw materials in the cylindrical transport part of the screw. (1)

The disadvantage of such a meat grinder is the incomplete use of the screw screw cutting capabilities. For example, in the capture zone, the screw profile does not reliably fix the raw materials, which, when the pressure is increased, are pressed back into the hopper neck

The present invention eliminates this drawback by introducing a two-profile screw with a grip profile and a transport profile.

Fig. 1 shows a fragment of a meat grinder with a screw with two profiles, where 1 is the auger body, 2 is a screw, 3 is an exciting zone of the screw, 4 is the transport part of the screw. The meat grinder works as follows.

The meat through the loading hopper (not shown conventionally) of the housing I enters the capturing surface 3 of the turns of the screw 2, and then moves to the grinding grill with a screw surface 4 of the conveying part of the screw In the feed capture zone, where the profile of the screw is formed either by a concave generatrix or inclined to the side of movement raw materials, raw materials are reliably captured and moved into the cylindrical part of the auger body. In the cylindrical part of the auger body, it is no longer necessary to keep the raw materials from vertical movement, and all efforts should be directed along the axis of the auger. In this case, the profile of the screw changes accordingly, which ensures optimal movement in this part of the screw housing.

Known sources:

1. USSR Copyright Certificate 1757742 A1 of 12.29.89.

class B02C 18/30

2. USSR Copyright Certificate 1796254 A1 of 05.27.91

class B02C 18/30

3. Copyright certificate of the USSR 1797996 A1 of 11.19.90

class B02C 18/30

Claims (1)

A meat grinder, consisting of a screw housing with a locking nut, in which a screw, knife and grill are installed, characterized in that, in order to increase the meat grinder's efficiency, the front screw surface of the screw contains two zones with different screw cutting profiles, the first zone being the capture zone - formed by either a concave generatrix or an inclined generatrix, and the second zone, the transportation zone, is made in the form of a rectangular thread in the cylinder of the screw housing.