JPH059052B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for mechanically separating the bones of carcasses of cows, pigs, etc.

As is well known, the processing of beef carcasses, pork carcasses, etc. with a knife requires processing techniques by skilled workers, but in the past, such processing was carried out exclusively by hand, resulting in high processing costs and low productivity. It was hot.

The present invention aims to provide a method to mechanize this bone and meat separation process as much as possible. The first step is to make many slit-like incisions in the periosteum on the surface of the ribs, the second step is to cut the joint between the ribs and costal cartilage, and the ribs are peeled off from the cut ends. This method is characterized by comprising a third step in which the rib cartilage is separated from the meat in this manner, and a fourth step in which the costal cartilage is separated from the meat by being peeled off from the cut end thereof.

An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, carcasses to be processed are placed on a linear conveyor to continuously separate the ribs. In the figure, 1 is a belt conveyor supported horizontally by a frame 2, and the belt conveyor is
A gap 5 is formed between the slightly wide belt 3 and the narrow belt 4.
6, which are arranged in parallel with each other, with a tension free roller provided at one end, 7 a driving roller provided at the other end, 8, 8... intermediate support rollers, and 9 a conveyor drive motor. The carcass 10 has a large number of ribs 10a and a costal cartilage 10c that continues from the ribs 10a via joints 10b.The carcass 10 is attached to one end of the belt conveyor 1 with these bone parts facing upward. Place it on the vehicle and transport it as shown by the arrow. Gate-shaped columns 13 and 14 are established near both ends of the belt conveyor 1, and the columns 13 and 1
4, a horizontal shaft 15 is installed with both ends supported. 16
is a camshaft whose both ends are rotatably supported on supports 13 and 14 parallel to the horizontal shaft 15 at one side of the horizontal shaft 15, and a pulley 17 fixed to one end of the camshaft 16. and a pulley 19 of a drive motor 18 fixed to one side of the support 24 are linked by a timing belt 20, so that the camshaft 16 is rotated by the drive of the motor 18. However,
On the belt conveyor 1 on which the horizontal shaft 15 and the cam shaft 16 are horizontally suspended, a first step A is performed in which a large number of slit-like incisions are made in the periosteum on the surface of the ribs in order from the charging side of the carcass 10. a mechanism, a mechanism that performs a second step B of cutting the joint between a rib and costal cartilage, a mechanism that performs a third step C that separates the rib from the cut end by peeling it off from the meat; A mechanism is provided that performs a fourth step D of separating the cut end from the meat by stripping it off.

To explain from the first step A below, the horizontal axis 15
A pair of arms 21, 21 are pivotably supported at a distance from each other, and compression springs 22 are provided in the cylindrical portions of the arms 21, 21, and support arms 23, 23 are inserted from the tips of the cylindrical portions, respectively. The elasticity of the compression spring 22 urges the supporting arms 23, 23 downward. A round knife 24 is provided between the tips of the support arms 23, 23, and has a large number of round blades arranged in parallel at regular intervals (approximately 5 mm). Built-in. Tension springs 25, 2 are provided at ends of the arms 21, 21 that protrude above the horizontal axis 15.
5 is moored and urges the arms 21, 21 in a constant rotation direction. Further, cams 26, 26 are fixed to the camshaft 16 so as to be in contact with one side of the arms 21, 21 so as to be opposite to the biasing direction. Carcass 1 carried in by driving belt conveyor 1
0 is temporarily stopped just below this round knife 24. Then, the cam shaft 16 is rotated and the cams 26, 26
By rotating the arms 21, 21 in the direction of the arrow in FIG.
A number of slit-like incisions are made in the periosteum covering the surface of the bone.

Next, to explain the second step B, the cylinder 27 is positioned in the gap 5 between the belts 3 and 4.
supports the horizontal shaft 28 so that it can rise and fall freely, and the horizontal shaft 28
Vertical guide shafts 29, 29 are provided at both ends of the belt 8, and cylinders 30, 31 are provided at the upper part of the belt 3 and the upper part of the belt 4, respectively, so as to be slightly inclined inward. Pressing pieces 32 and 33 are provided at the ends. A pair of arms 34, 34 are pivotably supported at intervals on a horizontal shaft 15, and a compression spring 35 is provided in a cylindrical portion of the arm, and the tip thereof is bent into a U-shape from the cylindrical portion. The support arms 36, 36 are made to protrude, and the elasticity of the compression spring 35 urges the support arms 36, 36 downward.
A screw shaft 37 is rotatably supported between the distal ends of the support arms 36, 36, and a motor 38 for rotating the screw shaft 37 is fixed to one of the support arms 36. Screw shaft 37
The reciprocating body 4 is provided with a nut 39 on the upper part that is screwed into the reciprocating body 4.
A rotary cutter 41 is provided at 0. The rotary cutter 41 has flanges 4 at both ends of a cylindrical body.
2 and 42, and a saw blade is formed on the circumferential surface of the intermediate portion.It has a built-in motor and rotates in the direction of the arrow. Horizontal axis 1 of arms 34, 34
Tension springs 43, 43 are moored to the ends above 5 and urge the arms 34, 34 in a constant rotation direction. Then, cams 44, 44 that abut on one side of the arms 34, 34 are fixed to the camshaft 16 so as to be opposite to the biasing direction. After completing the first step A, the carcass 10 transported by the drive of the belt conveyor 1 is stopped directly above the horizontal shaft 28. and cylinder 3
0, operate the cylinder 27 and cylinder 31 in that order to press the rib 10a with the pressing piece 32, push up the joint part 10b from directly below using the horizontal shaft 28, and press the costal cartilage 10b with the pressing piece 33. By pressing, the carcass is bent into an F-shape, and the joint part 10c is
to raise it. In this state, rotary cutter 4
1, the screw shaft 37 is rotated to move the reciprocating body 40 in the direction of the arrow, and the raised joint portion 10b is cut using the saw blade of the rotary cutter.

Next, to explain the mechanism of the third step C, a horizontal shaft 45 similar to the horizontal shaft 28 is connected to a cylinder 46 in the gap 5.
The horizontal shaft 45 is provided so as to be movable up and down.
Guide shafts 47, 47 are provided at both ends of the
A cylinder 48 is provided above the belt 4, and a presser claw 49 is provided at the end of the operating shaft of the cylinder 48. A pair of arms 50, 50 are pivotally supported at a distance from each other on a horizontal shaft 15, and a scraper 52 is attached to the tips of the arms 50, 50 by pins 51, 51. Sub-arms 53, 53 are formed on one side of the arms 50, 50 in parallel with the arms, and a compression spring is built into the sub-arms in the same manner as the arm 21, and a support arm 54 is elastically projected from the tip of the sub-arms. A presser roller 55 is attached to the tip of the support arm 54. Tension springs 56, 56 are moored to the ends of the arms 50, 50 above the horizontal axis 15, as before.
0 and 50, while the cam 5 is applied to the camshaft 16.
7, 57 are fixed and the cams 57, 57 are attached to the arm 5.
It is brought into contact with one side of 0.50. The carcass 10 that has completed the second step B is moved onto the horizontal axis 45. Then, the cylinder 48 is operated to press down the presser claw 49 to press down the costal cartilage 10c, and the cylinder 46 is also operated to raise the horizontal shaft 45. Since the horizontal shaft 45 pushes up the area near the joint part cut in the second step under the ribs 10a of the carcass 10, the cut ends of the many ribs 10a rise up as shown in FIG.
Therefore, the scraper 52 is inserted under the cut ends of each of the ribs 10a which have been lifted up, and the arm 50 is
50 is turned as shown by the arrow, and a large number of ribs 10a are simultaneously stripped off and separated from the meat.

Next, to explain the mechanism of the fourth step D, arms 58, 58 are rotatably supported on a horizontal shaft 15, and a cylindrical roller 59 having a rubber surface with unevenness is rotated at the tip of the arm. The roller 5 is freely provided.
A motor is installed in the roller 9 so that the roller 59 can be rotated as shown by the arrow. Arm 58,5
A tension spring 60 is moored to the upwardly projecting end of the arm 8 to bias the arms 58, 58. On the other hand, a camshaft 61 parallel to the camshaft 16 is provided on the opposite side to the camshaft 16, and the camshaft 61 and the camshaft 16 are connected by a timing belt 6.
2 so that the camshaft 61 rotates together with the camshaft 16, and a cam 62 that comes into contact with the arms 58, 58 is fixed to the camshaft 61. Third
The carcass 10 from which the ribs 10a have been removed in step C is further transported to a fourth step D. There, roller 59
The rib cartilage 10c is rotated to peel off the cut end of the rib cartilage 10c and separated from the meat.

In addition, in the above example, the carcass was placed on a belt conveyor so that each process was performed continuously.
The processing does not necessarily have to be carried out continuously, but may be carried out in a so-called batch manner. Further, as shown in FIG. 7, a rotary table 64 that rotates intermittently in the direction of the arrow is provided, and the carcass is placed on the table at positions A, B, C, and D for the first to third steps, respectively. If four steps are carried out and the carcass to be processed next is brought in at the same time as the processed meat is taken out at the position E, the dedicated space will be taken up compared to using a linear belt conveyor as in the previous embodiment. You can do less.

As explained above in the embodiments, the present invention is capable of mechanically separating the attached ribs and costal cartilage of carcasses in loin and belly parts, so high productivity can be achieved without relying on human labor, and meat processing costs can be reduced. It is a beneficial thing that can reduce the

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partial cross-sectional side view of the bone and meat separation device, FIG. 2 is a view taken along the line arrow in FIG. 1, and FIG.
Line sectional view, Figure 4 is a - line sectional view of Figure 1,
Figure 5 is a cross-sectional view taken along the - line in Figure 1, and Figure 6 is a cross-sectional view of Figure 1.
FIG. 7 is a sectional view taken along the line ``--'' and FIG. 7 is a plan view of a rotary table showing another embodiment. A...First step, B...Second step, C...Third step,
D...4th step, 10...carcass, 10a...rib, 10
b...Joint part, 10c...costal cartilage, 24...round knife,
41...Rotary cutter, 52...Scraper,
59... Laura.

Claims (1)

[Claims] 1. A first step of separating the bone and meat of a loin or rib carcass to which many ribs and costal cartilage are attached, in which a number of slit-like incisions are made in the periosteum on the surface of the ribs; A second step of cutting the joint between the ribs and costal cartilage, a third step of separating the ribs from the meat by peeling them off from the cut ends, and separating the costal cartilage from the meat by peeling them off from the cut ends. A bone and meat separation method characterized by comprising a fourth step.