RU2187366C2 - Centrifugal farce grinder - Google Patents

Abstract

FIELD: food-processing industry. SUBSTANCE: farce grinder has charging and discharge devices, grinding device made in the form of drum composed of conical shell with continuous walls, cover with blades rigidly attached to cover and straight knives. Discharge device is equipped with grinding extent regulator. EFFECT: increased efficiency and improved quality of farce. 1 dwg

Description

 The invention relates to the meat industry and can be used for fine grinding of minced meat in sausage production.

 Known centrifugal device for grinding meat, consisting of a closed housing, drive, shaft, bearing more than 100 knives, installed six pieces in each row. The degree of grinding depends on the regulation of the gap between the knives and the wall of the body, the displacement and delivery of products occurs under the influence of gravitational force and vacuum (see US patent 3095022; Peleev A. I. Technological equipment of meat industry enterprises. - M., 1971, p. 313 )

 A disadvantage of the known device is the complexity, the complexity of disassembling, greater assembly accuracy after sharpening knives, wear of the inner walls of the body, metal chips entering the product.

 Known centrifugal grinder brand AWZH for grinding grease with fixed knives installed inside the drum. The perforated drum of the grinder is enclosed in a housing and is driven by an electric motor shaft. The mass entering the drum from the hopper is discarded by centrifugal force to the walls where the knives are mounted. Slices of products cut by knives are moved through holes in the walls of the drum and squeezed out by means of blades through an unloading sleeve (see A. Peleev, Technological Equipment of Meat Processing Enterprises. - M., 1971, p. 319).

 The disadvantage of this grinder is the ability to grind only grease due to its design of the drum, knives, in addition, for grinding efficiency, it is necessary to adjust the pressure of the knives to the walls of the drum, there is no force to press the knives to the grill of the drum, which reduces the efficiency of the device.

 The closest device in technical essence and the achieved result to the proposed one is the WIND brand chopper, which contains a bowl, a rotor with circular knives, a screw type loading and unloading device, and a drive to each device (see Meat industry, 2, 1993, p. 2).

However, its disadvantages include:
- metal, energy, high cost,
- the complexity and complexity of disassembly, greater assembly accuracy after sharpening knives, wear of the inner walls of the body, metal chips entering the product,
- the impossibility of processing structural meat (with fat).

 Thus, the technical task of the invention is the creation of a minced meat grinder capable of satisfying the interests of small and medium-sized sausage shops.

 The technical result of the invention is improving the efficiency of grinding minced meat and improving quality.

 The technical result is achieved by the fact that a centrifugal forcemeat grinder containing loading and unloading devices, a device for grinding with knives, a drive, according to the invention, the grinding device is made in the form of a drum made of a conical shell with smooth walls to move the forcemeat down, lids with rigidly fixed on it with blades for forming a stuffing ring and inside straight fixed fixed knives installed with the possibility of cutting layers of minced meat in horizontal and vertical vertical planes, while the degree of grinding is possible by changing the amount of minced meat by the regulator of the unloading device.

The proposed centrifugal forcemeat grinder differs from known devices of the same purpose in that:
- due to the creation of compression pressure due to the centrifugal field, grinding is carried out by dissecting the layers of the stuffing ring on the knives in the horizontal and vertical cutting plane, a drum made of a conical shell with smooth walls to move the stuffing down, equipped with a lid with blades rigidly fixed on it to form and squeezing the stuffing ring,
- the ability to process structural meat due to the installation of knives and a regulator of the degree of grinding,
- the ability of the structure to be easily disassembled, does not require high accuracy during assembly and use the second side of the blade in knives after blunting the first.

 All of the above allows to increase the efficiency of grinding minced meat and improve quality in the proposed design, able to satisfy the needs and interests of sausage shops of small and medium capacity.

 And in known devices for grinding, knives are installed only on the rotor with the degree of grinding controlled by changing the gap between the knives and the wall of the bowl, as a result of which it is very difficult and time-consuming to disassemble the knives, the wear on the inner walls of the bowl, possible metal chips into the product, impossible processing of minced meat with bacon.

 The analysis of patent and scientific and technical literature showed that the authors of the prior art did not identify known solutions containing a combination of design features similar or equivalent to those claimed, which allows us to conclude that the claimed device meets the criteria of "novelty" and "inventive step".

 The invention is illustrated in the drawing, which shows the design of a centrifugal meat mincer (cut).

 The centrifugal minced meat grinder contains a loading hopper 1, a housing 2, a drum 3 made of a conical shell with smooth walls, which ensure the forcemeat is moved down. Inside the drum 3 there are fixed straight-shaped knives 4 and 5 installed with the possibility of dissecting the layers of meat in horizontal and vertical planes. The chopper also has a discharge device 6 and a drive 7.

 The loading hopper 1 is conical in shape and bolted to the housing 2. Inside the hopper 1 there is a fastening part 8 rigidly connected by ribs, by means of which the upper part 9 and the middle part 10 of the discharge pipe are interconnected, which are clamped on top by a nut 11, on the bottom by a disk 12 and a nut 13. The upper part 9 of the discharge pipe is equipped with a coupling 14 and a regulator 15 for regulating the flow of ground meat. The disk 12 is equipped with two fingers 16, vertical knives 5 are mounted on one with the possibility of adjustment with oblique bushings 17 with a clamping nut 18, and horizontal knives 4 are installed on the second finger through the hole in the rack 19 with the help of bushes 20. Bottom vertical knives 5 are fixed to the bottom discharge pipe 21, and the stand 19 through the opening of the strap 22 is rigidly connected to the outlet 23, fixed by a nut 24. The drum 3 is provided with a cover 25 with blades rigidly connected to it 26, a conical shell 27 with smooth walls, the bottom 28. The drum 3 is fixed attached the bottom 28 to the vertical shaft with a clamping nut 29, screwed in the opposite direction of rotation of the drum 3, and a key 30. To prevent clogging of the stuffing of the fastening point of the drum 3, a sealing plug 31 is installed. To drain the water after washing, the drum 3 is equipped with a plug 32. Drive 7 is carried out through a helical gear 33 in the same way as in a separator (see Sokolov A.Ya. Fundamentals of calculation and design of machines and automatic machines of food production. - M., 1983). Disassembling the grinding device is possible in the following sequence: first, by disconnecting the upper part 9 of the discharge pipe with the regulator 15 by means of the coupling 14. After disconnecting the shell 27 from the bottom 28 of the drum 3, disconnecting the loading hopper 1, the inside of the grinder is removed.

 Centrifugal grinder operates as follows.

 The pre-ground minced meat is fed into the loading hopper 1, after which it flows by gravity onto the disk 12, where the formation and compression of the minced ring takes place using the vanes 26 of the cover 25 of the drum 3 and the centrifugal field. Grinding occurs on the walls of the conical shell 27, which are smooth with a slope, and the pressure from the top of the incoming meat due to cutting on knives 4 and 5 in the horizontal and vertical planes of the formed and compressed minced meat. For one revolution of the drum, the entire section of the minced ring with a shift in different planes manages to be processed. The unloading of ground meat occurs due to the created centrifugal field through the unloading device 6 from the bottom of the discharge pipe 21 to the upper part 9. By changing the amount of ground meat, the degree of grinding of the forcemeat is regulated by the regulator 15. The drive 7 using a helical gear 33 and a method of balancing the center of mass of the drum 3 provides the necessary frequency of rotation of the drum to create the necessary pressure for the compression of the meat with grinding it through dissecting the knives 4 and 5.

The proposed centrifugal forcemeat grinder in comparison with the prototype - grinder brand "WIND" (see Meat industry, 2, 1993, S. 2) has the following advantages:
- simplicity and low cost of construction, ease of disassembly, does not require great accuracy in installing knives after sharpening, the ability to use the second side of the knife blade when the first is dull;
- the ability to grind minced meat (with fat);
- the ability to transport ground meat through pipes to a distance;
- applied balancing the center of mass of the drum.

 All of the above allows us to conclude that the claimed invention meets the criterion of "industrial applicability".

Claims (1)

 A centrifugal forcemeat grinder containing loading and unloading devices, a device for grinding with knives, a drive characterized in that the grinding device is made in the form of a drum made of a conical shell with smooth walls to move the forcemeat down, lids with blades fixed to it for formation forcemeat rings and inside straight fixed fixed knives installed with the possibility of cutting layers of forcemeat in a horizontal and vertical plane, while the regulation Degree of changing the amount of grinding is provided by the offload minced regulator unloading device.