WO2012044209A4 - Method for grinding meat with a cutter assembly of a meat grinder. meat separation method. cutter assembly of a meat grinder. cutter pair of a cutter assembly of a meat grinder (two variants) - Google Patents

Abstract

What are proposed are: a method for grinding meat, a meat separation method, a cutter assembly of a meat grinder, and two variants of a cutter pair of said cutter assembly. The preferred fields of use are meat, poultry or fish processing, and the manufacture of new-generation industrial meat grinders and of a self-sharpening cutter therefor. Meat is ground and separated using a cutter assembly of a meat grinder comprising a separator. Such a cutter assembly comprises a cutting and separating grating (8), a one-sided separating knife (9), a direct-flow chamber (15) and a peripheral annular continuous-flow chamber (16). The direct-flow chamber (15) is adjacent to the central annular zone of the cutting and separating grating (8) which occupies up to 90% of the area of the working surface thereof. The annular continuous-flow chamber (16) adjoins the remainder of this grating. When the proposed method is implemented, cuts of meat are ground into pieces by take-in and intermediate cutter pairs of the cutter assembly of the meat grinder, and the resultant fragments are pushed into the direct-flow chamber (15). Up to 90% of the meat fragments are passed reciprocally from said direct-flow chamber to the central part of the cutting and separating grating (8). The remainder of the fragments of meat are moved into the peripheral annular continuous-flow chamber (16), from where said fragments are passed reciprocally to the peripheral cutting and separating grating (8). The cutter pairs, which operate during passes of the blades of the separating knife (9), cut the muscle and fat tissue away from the fragments of meat and these tissue fragments are pushed into the openings in the cutting and separating grating. The majority of the connective-tissue impurities and tough extraneous matter introduced with the meat is separated in the central part of the cutting and separating grating (8), and the separation of the meat is completed by the peripheral part of said grating. The cutter assembly of the meat grinder is provided with cutter pairs comprising wearing parts of gratings (2), (5), (8) and, connected functionally thereto, wearing parts of knives (3), (4), (6), (7) and (9). The interacting surfaces of the cutter pairs are curvilinear in form. The technical result achieved consists in increasing the yield of ground meat, in increasing the water retention capacity thereof, in minimizing as far as possible the contamination of the ground meat with products from the wear of the cutter pairs, in minimizing as far as possible any heating of the ground meat, in the energy-saving nature of the meat grinding process, in the massaging, degasification and deaeration of the meat being ground, and in improving the taste and aroma of the food products produced from this meat.

Claims

MODIFIED FORMULA OF THE INVENTION received by the International Bureau May 29, 2012 (05/29/2012)

1. A method of grinding meat with a cutting unit of a meat grinder equipped with a cutting-separating pair, two intermediate and two (or one) receiving cutting pairs consisting of circular protrusions (21) made with curvilinear ends (21), cutting-separating (8), intermediate ( 5) and receiving (2) gratings, as well as functionally connected with them, curved projections (26) of figured protrusions (25) of a blade (24) separating (9), two intermediate (6, 7) and two (3, 4), made with curved soles (or one 4) receiving unilateral knives, providing for the use of re elements of cutting pairs represented by the front edges (27) of the soles (26) of the figured protrusions (25) of the blades (24) of the knives and the front sections (22) of the edges of the holes of the gratings, which also include the use of a separator built into the cutting unit of the meat grinder, including the radial ) (or axial 41) discharge pipe, cutting-separating pair, installed in interconnecting direct-flow (15) (or 39) and peripheral (16) (or central 40) annular flow chambers, carrying out which pieces of meat are cut with interlocking cutting elements s (22) and (27) of two receiving (or one receiving), as well as two intermediate cutting pairs, the resulting pieces are pushed into the flow chamber (15) (or 39) of the separator, to the cutting-separating grid (8) they are fed back progressively, the muscle and fatty tissues of the meat are periodically pressed into its openings, and then cut from pieces by interlocking cutting elements (22) and (27) of the separating-separating separator pair, characterized in that from the straight-through chamber (15) (or 39) the separator does not less than 10% of meat pieces are sent to the peripheral (16) (or central 40) to Fingerprint flow chamber.

 2. A method of separating meat, combined with its grinding by a cutting unit of the meat grinder using the method described in paragraph 1, in which a separator is used, which is built into the cutting unit of the meat grinder, including a radial (17) (or axial 41) discharge pipe, direct-flow chamber (15) (or 39), a peripheral (16) (or central 40) annular flow chamber connected to it, as well as a cutting-separating pair consisting of curved soles (26) of figured projections (25) of blades (24) made of curved soles (24) (or 38) and functional About the associated with the curved end (23) of the annular protrusion (21) of the cutting-separating grid (8), involving the use of separator cutting elements, represented, respectively, by the front sections (22) of the edges of the holes of the cutting-separating grid (8) and the front edges (27) of soles (26) of shaped protrusions (25), through which, cutting the grating (8) of chopped meat, secrete connective tissue inclusions and hard impurities that look like fragments of bone, cartilage scraps and tendons; Adhesive and / or adipose tissues, fitting the secreted inclusions and impurities, are pressed into the holes of the cutting-separating grid (8), and then cut off by the interlocking cutting elements (22) and (27) of the separator, after which the separation products are unloaded through the radial

CHANGED SHEET (ARTICLE 19) 28

(17) (or axial 41) discharge branch pipe, characterized in that in the central (or peripheral) zone of the cutting and separating grid (8) up to 90% of connective tissue inclusions and hard impurities are emitted from meat (16) ( or a central 40) annular flow chamber, where they cut off residues of muscle and (or) adipose tissue from them, and also separate the meat coming from the direct-flow chamber (15) (or 39).

 3. The cutting unit of the meat grinder, specially designed for meat chopping by the method according to item 1 and its separation by the method according to item 2, equipped with cutting-separating (8), intermediate (5) and receiving (2) machines installed in the flow-through chambers (15, 14, 13) grating, cutting-separating (9) with a knife, two intermediate (7, 6), two (4, 3) (or one 4) receiving knives, forming a cutting-separating pair, two intermediate and two (or one) cutting cutting pairs consisting of annular protrusions (21) of the said gratings and functionally associated figured projections dressing (25) of the blades (24) listed blades having working surfaces and cutting elements of the cutting blade pairs provided, respectively, curved end faces (23) of the annular projections (21) and the front portions

(22) edges of lattice holes, as well as curved soles (26) figured protrusions (25) and their front edges (27), equipped with a built-in separator including a radial (17) (or axial 41) discharge pipe, straight-through chamber (15) ( or 39) and a cutting-separating pair installed in it, characterized in that to the peripheral (or central) zone of the cutting-separation grid (8), which occupies at least 10% of its working surface area

(23), adjoins the peripheral (16) (or central 40) annular flow chamber connected to the flow chamber (15) (or 39) and to the inlet of the radial (17) (or axial 41) discharge port.

 4. Cutting pair of the cutting unit of the meat grinder according to item 3 (option 1), which includes a meat separator with a peripheral (or central) flow chamber, consisting of a wear part of the grill, made in the form of an annular protrusion (21), covering the area of the holes for passage meat, and a part of the blade (24) of the knife, functionally associated with it, represented by a continuous figured protrusion (25), extending in the peripheral direction, but having at least one tapered portion, as working surfaces and elements of which are used, respectively, the end (23) of the annular protrusion (21) of the grille and the front sections (22) of the edges of its holes, as well as the sole (26) of the figured protrusion (25) of the blade (24) of the knife and its front edge (27) , characterized in that the sole (26) and the end (23) of the annular protrusion (21) are curved.

 5. The cutting pair of the cutting unit of the meat grinder according to item 4 (option 2), which includes a meat separator with a peripheral (or central) flow chamber, consisting of a wear part of the grill, made in the form of an annular protrusion (21), covering the area of the holes for passage meat, and functionally related part of the wear part

CHANGED SHEET (ARTICLE 19) 29 blades (24) of a knife, represented by a figured protrusion (25), extending in the peripheral direction, but having at least one tapering section, the working face and cutting elements of which use, respectively, the end (23) of the annular protrusion (21) of the grille and the front sections (22) of the edges of its holes, as well as the sole (26) of the figured protrusion (25) of the blade (24) of the knife and its front edge (27), characterized in that the figure of the blade (24) of the knife provides a recess in the form of a closed grooves (29), with the sole (26) and the end (23) ring the second protrusion (21) is curved.

 6. The cutting pair of the cutting unit of the meat grinder in paragraphs 4, 5, characterized in that the shape of the sole (26) and the configuration of the end (23) of the annular protrusion (21) are related by functional dependence

2πρ ₌ ι

 where /, is the length of the arc having the radius p belonging to the sole (26) of the figured projection (25) of the blade (24) of the knife, m;

 / - set length of the arcuate base (35) (or 36) of the sole (26), having a radius p, m;

 g

Y, Ij _j - the length having a radius?, Continuous or interrupted by holes for the passage of meat circle, located on the end (23) of the annular protrusion (21) of the lattice, m;

f _x (x) = 1 + p _t I p is the correction function that ensures the leveling of the intensity of wear of the figured protrusion (25) of the blade (24) of the knife in the peripheral direction;

 a - coefficient, the value of which is determined on the basis of experimental data.

 7. The cutting pair of the cutting unit of the meat grinder in paragraphs 4, 5, characterized in that the shape of the sole (26) and the configuration of the end (23) of the annular projection (21) are related by a functional dependence, having the form of the equation

1 ^Gg

 - (l - crec J) 2 (1 + £ "&COS; K) (+ αρ, Ι ρ) Σΐ„,

 7 = 1 m

where / _; - the length of the arc having a radius p _i (FIG. 6) belonging to the sole (26) of the shaped projection (25) of the blade of the knife, m;

 / is the length of the arcuate base radius p (35) (or 36) of the sole (26) of the figured protrusion (25) of the blade (24) of the knife, m;

 / GM = (] - rcos β) - corrective function, taking into account the shape of the leading edge (27) of the figured protrusion (25) of the blade (24) of the knife;

 σ is the empirical coefficient;

 β is the angle between the radius p ~ and the tangent at the gth point to the leading edge line (27)

CHANGED SHEET (ARTICLE 19) 30 figure ledge (25) blades (24) of a knife;

/ ₃ (х) = - ^ (l + ekcos y) - correction function, taking into account the wear of the sole (26) of the figured protrusion (25) of the blade (24) of the knife by the cutting elements (22) of the grill holes;

 d is the number of lattice holes encountered on the path of the arc /,;

 ε - coefficient, the value of which lies in the range 1.0 - 1.2, depends on the angle of inclination of the axes of the holes for the passage of meat, made in the grid;

 k - empirical coefficient;

γ is the angle between the radius p _i and the tangent to the line of the cutting element (22) at the th hole of the grill, intended for the passage of meat.

CHANGED SHEET (ARTICLE 19)

 31

 EXPLANATION UNDER ARTICLE 19 (1)

A special technical feature that determines the contribution to the state of the art by independent items 1-3 of the original formula of PCT / RU201 1/000745 is the presence of a peripheral (or central) flow chamber in the meat separator. In independent clauses 4, 5, a special technical feature that determines the contribution to the level of technology is the shape of the sole of the knife blade projection and the configuration of the end face of the annular ridge of the grid - these surfaces are curved.

 According to the international search report (form PCT / ISA / 210 of April 5, 2012), the international application did not comply with the requirement of unity of invention.

 It was revealed that the special technical feature indicated in clauses 4, 5 is absent in clauses 1-3, and in clauses 4, 5 there is no special technical indication of clauses 1-3.

 To remedy the deficiencies identified, the invention is amended in accordance with Article 19 (1).

 In paragraph 1 of the amended formula, the signs “made with curved ends (23)” (sheet 23, line 6) and “made with curved soles (26)” (sheet 23, line 8) are added.

 Paragraph 2 added the signs “made with curved soles (26)” (sheet 23, lines 28, 29) and “made with a curved end (23)” (sheet 23, lines 30, 31).

 In paragraph 3, the sign "curvilinear" was added (sheet 24, lines 15, 16).

 In paragraphs 4, 5, the attribute “including meat separator with a peripheral (or central) flow chamber” was added (sheet 24, lines 24, 25 and 35, 36, respectively).

 Special technical features are entered into independent clauses on the basis of the fact that they appear in the description (sheet 7 - line 28; sheet 10 - line 1; sheet 9 - line 19; sheet 18 - line 3).

 In addition, the following editorial amendments were made to sheet 23 of the amended formula: from lines 8, 9 - the word “cutting-” was deleted; in lines 15, 18, 22, 27 figures 15 are taken in parentheses; in line 17 instead of the words "(or one) receiving" the words "receiving" (or one receiving) are written "; in line 36 instead of the word "a" the words "are written"; in line 37 - instead of the word "their" the words "separated inclusions and impurities" are written.

 The following editorial amendments were made to formula page 24: in lines 6, 18, 22, figures 15 are taken in parentheses; line 9 changed the order of writing the numbers 13, 14, 15 to the opposite; in line 10 the order of writing numbers 6, 7 is changed to the opposite; line 10 changed the order of writing the numbers 3, 4 to the opposite; line 12 added the word "specified"; in line 13 the word "listed" is added; In lines 18, 19 the words "established in it" are added.