RU201541U1 - Reversible mincing knife - Google Patents

Abstract

The utility model refers to structural elements of devices for grinding materials, mainly meat, and can be used in everyday life for cooking. The technical result of the utility model is to expand the line and increase productivity, while maintaining other performance characteristics (strength and durability), the product is a double-sided knife The technical result is achieved by the fact that in the double-sided knife for the cutting unit of the meat grinder, containing a body in the central part of which there is a quadrangular opening with four blades extending from the central part, the blades have a curved shape made with a twist, and their ends and cross-sections - dumbbell-shaped, the angle of sharpening of the cutting edges is 20-50 degrees, and the non-working ones are close to 90 degrees. The main difference is in the appearance of the cutting. The cutting edge of a classic knife is in front when viewed from the vertical. In the claimed product, due to the strongly shifted cutting edge, good sliding is ensured. In addition, meat is thrown away in the process of work, the body in front of the grill does not "overgrow" the product and productivity increases. The cutting unit of the meat grinder does not need constant cleaning. The knife is made of steel by the method of investment casting in one piece, which also makes it easy to maintain. 4 ill.

Description

The utility model refers to structural elements of devices for grinding materials, mainly meat, and can be used in everyday life for cooking.

In the process of work, meat or other product through the meat receiver enters the screw conveyor, with the help of which it is pressed against the grate, and then cut off by a knife sliding along the surface of the grate.

There are many types of knives for cutting units of meat grinders, defined as the shape of the cutting edges: standard straight, saber, sickle, serrated, with a cutting edge shifted from the central axis, one and two-sided; and the method of making the base: forged, stamped, with a square base, in 4 or 6 corners, etc.

The standard 4-blade knife of a meat grinder is the main working body. It is fixed on the auger, a grate is put on over it, through which, when rotating and chopping meat, the finished minced meat passes into small pieces. Such a knife is always installed with the flat side to the grate, and is put on the auger with the mounting hole.

The reversible knife can be installed either side. It will work.

Currently, electric meat grinders are widely used, where the product is chopped at a sufficiently high speed. At the same time, operational control of the grinding speed in the event of any difficulties or uneven structure of the ground material, as it was done when using manual meat grinders, is impossible. Therefore, special requirements are imposed on the design of the cutting unit. And, as you know, the most vulnerable part of the cutting unit is the knife. In addition to increased loads, the structure of this element itself, containing protruding parts, is subject to variable loads.

Known movable cross-shaped knife chopper food (RU, 177834, B02C18 / 36). The blade knife contains a hub with a landing hole, on which blades are placed, having additional cutting blades with cutting edges on the rear surfaces. The additional cutting blades are arcuate and positioned on concentric circles. Each cutting blade has two cutting edges. The product to be crushed is pushed onto the cutting edge under pressure and cut (cut) by it.

In addition, when the blade rotates, the cutting blade, overcoming the resistance of the grinded medium, also cuts the product with its cutting edge. Thus, the design of the knife allows for simultaneous preliminary and final grinding of the product.

Known double-sided knife for a meat grinder (CN209549659, B02C18 / 30, B02C18 / 36). The reversible grinder knife consists of a mounting hole and a knife disc, the mounting hole is in the center of the cutting head, at least two blades are located on the cutting head, spaced at equal intervals of 360 degrees, the cutting edges are located on the blades and contain the first cutting edge and the second cutting edge edge, a gap is formed between the first cutting edge and the second cutting edge, and the first cutting edge and the second cutting edge are located up and down and are not located in the same plane. The reversible meat grinder knife is made in one piece. Due to the design of the knife blade, fast meat cutting can be realized; the cutting edge is a sharp angle, which makes the minced meat sharp. The grinder knife is designed as a single unit and is easy to clean.

However, existing meat grinders with double-sided knives on the market also have some problems that make the operation of the meat grinder unsatisfactory and affect the quality and yield of minced meat.

The disadvantages of the device for grinding are: high energy consumption and a decrease in the nutritional value of meat and fish raw materials in the process of grinding, due to the fact that significant friction forces arise in the contact zone of the knives and knife grids and, as a result, heat generation, which causes a decrease in the nutritional value of meat and fish raw materials and increased wear of the edges of the knife.

A commercially available double-sided meat grinder knife manufactured by Bosch-Zelmer-Philips (https://www.ozon.ru/product/nozh-dvuhstoronniy-dlya-myasorubki-zelmer-5-171480512/?utm_content=id_171480512|catid_10598&is = true & utm_source = cpc_yandex_market & utm_campaign = tvr_appliance_normal & utm_medium = cpc & ymclid = 15984375736051562890800009 & pid = cpc_yandex_market & af_click_lookback = 7d).

The disadvantage of the prototype is its low productivity in comparison with a one-sided knife, due to the formation of an obtuse angle by the cutting edge.

The technical result of the utility model is to expand the line and increase productivity, while maintaining other performance characteristics (strength and durability), the product is a double-sided knife for a meat grinder.

The technical result is achieved by the fact that in the double-sided knife for the cutting unit of the meat grinder, containing the base, in the central part of which a quadrangular opening is made, with four blades extending from the central part. The blades have a curved shape, made with a twist, their ends and sections have a dumbbell-like shape 4, and the sharpening angle 5 of the cutting edges 6 is less than 50 degrees, and the angle 7 of the non-working edges is 90 degrees.

The main difference is in the appearance of the cutting edge. The cutting edge of a classic knife is in front when viewed from the vertical. In the claimed product, due to the strongly shifted cutting edge, good sliding is ensured. In addition, meat is thrown away in the process of work, the body in front of the grill does not "overgrow" the product and productivity increases. The cutting unit of the meat grinder does not need constant cleaning.

The knife is made of steel by the method of investment casting in one piece, which also facilitates its maintenance.

For a better understanding of the utility model, the following illustrations are presented:

Fig. 1 is a general view of a double-sided knife for a meat grinder;

Fig. 2 is a front view of a double-sided knife for a meat grinder;

Fig. 3 is a side view of a double-sided knife for a meat grinder;

Fig. 4 is a sectional view of the cutting petal.

A double-sided knife for a meat grinder contains a base 1, in the central part of which a quadrangular hole 2 is made with four curved blades 3 extending from the central part, made with a twist. The ends and cross-sections of the blades have a dumbbell-like shape 4, moreover, the sharpening angle 5 of the cutting edges 6 is preferably less than 50 degrees, and the angle 7 of the non-working edges is close to 90 degrees.

The principle of operation of the meat grinder is as follows: meat and fish raw materials are loaded into the grinding device, where it is captured by the auger and transported to the knives and knife grids, through which the raw materials are chopped, after which the chopped raw materials are unloaded from the device.

Thus, the implementation of the utility model ensures the achievement of a technical result.

Claims (1)

A double-sided knife for the cutting unit of a meat grinder, containing a body, in the central part of which a quadrangular hole is made with four blades extending from the central part with cutting edges on both sides, characterized in that the blades are curved with a twist and have a dumbbell-shaped cross section and at the ends shape, and the angle of sharpening of the cutting edges of the knife is 20-50 degrees.

Images