JP4037286B2 - Fish splitting method and fish structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a large fish such as tuna along the vertebrae extending direction of the fish body (hereinafter referred to as the fish body front-rear direction), and in the plane perpendicular to the fish body front-rear direction centered on the vertebrae, The present invention relates to a method for cutting fish that is cut and divided into four pieces and the structure of the cut fish.
[0002]
[Prior art]
As a technique for dismantling large fish such as tuna, for example, the head and tail pattern of a fish body as described in Patent Document 1 (Japanese Utility Model Publication No. 5-67271) is positioned on a processing table. a Harakiri cutter which operates along a predetermined reference line with respect to the processing table on the basis of species other, means for measuring the head length of the fish body on the processing table in accordance with the output of the measuring means An image recognition apparatus comprising only a sensor for detecting the position of a predetermined part of a fish body, comprising a head-cutting cutter that moves to a position approximately half the head length and operates across the head at that point. There are technologies that are configured not to require
[0003]
Also, large fish longitudinal four in court split (cut, split) tuna, etc. When is the production of loin in the longitudinal direction of the fish the cutter placed in the longitudinal direction of the cutter toward ventral from dorsal fish moved bone central longitudinal 2 is divided into the a and then is rotated 90 ° to fish after returning the cutter to move the cutter in the longitudinal direction perpendicular laterally placed longitudinally to the two divided fish into Then, each of the two divided bodies is divided into two horizontally to cut out the four divided loins.
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 5-67271
[Problems to be solved by the invention]
However, in the Patent Document 1, in combination with a cutter cutter and head-cutting Harakiri is intended to cut the abdomen and the head of the fish on the processing table, the longitudinal direction a large fish tuna etc. It is not applicable to the production of loin by cutting (cutting, dividing) into four.
[0006]
Also, the cutter is put in the longitudinal direction of the fish body and moved in the longitudinal direction of the fish body to divide the bone vertically into two parts, and the cutter is inserted in the longitudinal direction into the longitudinally divided fish body and moved in the longitudinal direction to divide the two parts. is a body laterally divided into two parts that conventionally was cut out loin by the technology, vertical 2 is divided into a fish body by the cutter, is further rotated 90 ° the fish body from the back of the cutter, each divided into two It is necessary to produce a loin by dividing the fish into four parts by two processes of dividing the body into two sides.
[0007]
For this reason, in the prior art, as described above, since the loin is produced by two processes of longitudinal cutting and lateral cutting, the fish cutting process takes time, and the freshness of the loin Tends to decrease.
Further, in such a conventional technique, the cutter is reciprocated twice in the longitudinal direction and the transverse direction, and the fish body is rotated by 90 ° before the transverse direction is cut, so that the size of the manufactured loin and the rigidity of the body vary. It is easy to occur, and it is easy to cause a loss of quality of the loin due to breakage or collapse of the body during transportation or freezing.
And so on.
[0008]
In view of the problems of the prior art, the present invention, when producing a loin obtained by cutting a large fish such as a tuna into four in the longitudinal direction, while reducing the freshness in the cutting process to a minimum, The purpose is to provide a method for splitting fish, which can improve the freezing efficiency by making the size of the fish uniform uniform, and further improve the rigidity of the body so that high-quality loin can be obtained without the occurrence of cracks. .
[0009]
[Means for Solving the Problems]
In view of the problems of the prior art, the present invention, as the invention of claim 1, crosses a large fish such as tuna perpendicularly to the fish body longitudinal direction along the vertebral extension direction of the fish body (hereinafter referred to as fish body longitudinal direction). In a plane, a cutting method for fish, which is cut and divided into four pieces in the vertical and horizontal directions of the fish body by cutting with a cutter in the plane ,
A vertical reciprocating cutter for cutting the fish body in the vertical direction and a horizontal reciprocating cutter for cutting the fish body in the horizontal direction perpendicular to the vertical reciprocating cutter, the vertical reciprocating cutter and the horizontal reciprocating cutter. The fish body is moved and positioned so that the fish vertebra is located at the center of the support base corresponding to the orthogonal crossing position of the two cutters.
In a state where the vertical and horizontal shakes of the fish body 1 are suppressed at the positioning position,
Suggest Court fish split method characterized by preparing the two cutters the fish divided into four cut longitudinal direction moved simultaneously the fish body crosswise along the fish vertebrae center loin (4 split body) To do.
In claim 1, preferably, as in claim 2, the cutter is cut so that at least the vertebrae at the center of the fish body remain in each loin.
[0010]
The invention according to claim 6 is a fish structure obtained by cutting a fish body of a large fish such as tuna by the splitting method according to claim 1 , wherein at least the fish body from which the head and organs of the fish have been removed is removed. The vertebrae at the center of the fish body remain together with the bones inside the fish body in each loin which is formed into a quadrant that is cut into four parts along the center of the fish body so that the central vertebrae remain. It has a characteristic fish body structure.
[0011]
According to this invention, since two orthogonal cutters are simultaneously moved in the front-rear direction of the fish body, and the fish body is cut into four letters along the center of the fish body to cut the loin in one step, the loin is produced. The cutting time of the fish body is shortened to half or less compared to the prior art in which the loin is produced in two steps of cutting and transverse cutting, and the freshness reduction of the fish body during the cutting process is reduced.
Furthermore, the loin cut into four parts has a large surface area, and thus a (surface area / volume) ratio. Thereby, the freezing efficiency of loin at the time of freezing becomes good, the freezing time is shortened, and the quality of loin becomes uniform.
As described above, a high quality loin having a good freshness can be obtained.
[0012]
In particular, if constructed as described in claim 2, since the vertebrae at the center of the fish remain in each loin, the rigidity of the body is improved and the occurrence of cracks and collapses during transportation or freezing, etc. A loin with good quality can be obtained.
[0013]
The invention according to claim 3 is the invention according to claim 1, wherein the fish body is supported from below by an upper and lower support block that can move in the vertical (vertical) direction after the fish body is placed on the support base, and the horizontal (horizontal) direction. The left and right support blocks that can be moved to the fish body are brought into contact with the fish body from both the left and right sides to restrain the fish body from shaking, the fish body is positioned at a predetermined position, and the fish body is cut by the two cutters. .
[0014]
According to such an invention, the center of the fish body, that is, the center of the bone can be accurately positioned and fixed on the support base by the upper and lower support blocks and the left and right support blocks, and in the vertical direction (vertical direction) and the horizontal direction (horizontal direction). The cutter can be moved in the longitudinal direction of the fish body while suppressing the shake, and the fish body can be accurately cut into four along the center of the bone.
[0015]
According to a fourth aspect of the present invention, in the first aspect, when the fish body is cut by two cutters that reciprocate in a direction perpendicular to each other, the vertical reciprocating cutter that reciprocates vertically is cut into the fish body first. Then, a lateral reciprocating cutter that reciprocates in the left-right (horizontal) direction is cut into the fish body.
According to the invention, for reciprocating vertically cut longitudinal reciprocating cutter earlier while supporting the weight of the fish through the upper and lower support blocks fish, the fish by reciprocation of the vertical direction reciprocating cutter Since the occurrence of misalignment is avoided and the longitudinal reciprocating cutter is cut into the fish body and the longitudinal reciprocating cutter is reciprocated within the fish body, the lateral reciprocating cutter is cut into the fish body and reciprocated. It is possible to avoid the occurrence of fish misalignment when cutting and cutting the cutter .
[0016]
According to a fifth aspect of the present invention, in the first aspect, when the fish body is cut by two cutters that reciprocate in a direction perpendicular to each other, the fish body is pressed by a presser roller mechanism from the upper surface side and both side surfaces of the fish body. It is characterized by cutting.
According to this invention, when the fish is cut, the fish body is pressed and stopped by the presser roller mechanism, so that it is possible to prevent the fish from being displaced due to friction between the cutter surface and the fish at the time of cutting.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, unless otherwise specified, the dimensions, shapes, relative arrangements, and the like of the components described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention.
[0018]
1A and 1B show the structure of a tuna loin according to an embodiment of the present invention, in which FIG. 1A is a perspective view of a two-divided portion, and FIG. FIG. 2 is a perspective view showing a state immediately before cutting the fish. 3 is a side view of the above-described splitting machine for manufacturing the loin, FIG. 4 is a view as viewed from an arrow A (plan view) in FIG. 3, FIG. 5 is a view as viewed from an arrow B in FIG. FIG. FIG. 7 is a side view of the longitudinal reciprocating cutter mechanism, and FIG. 8 is a side view of the lateral reciprocating cutter mechanism.
[0019]
In FIG. 1 showing the structure of a loin according to an embodiment of the present invention, 1 is a fish body that is a work to be cut, and the fish body 1 is divided into four along a bone 1g at the center of the fish body. 1b, 1c and 1d are configured. 4 is a longitudinal section between the loins 1a and 1b and the loins 1c and 1d, and 5 is a transverse section between the loins 1a and 1c and the loins 1b and 1d.
Reference numerals 22 and 21 denote a left and right support block on the front side and a left and right support block on the rear side of the workpiece positioning station 20 described later.
[0020]
In FIGS. 4-6 which shows the whole structure of the cutting machine for a loin manufacture, 1 is a fish. Reference numeral 2 denotes a support base that extends in the longitudinal direction of the splitting machine. On the upper surface side, a workpiece loading station 10, a workpiece positioning station 20, a workpiece cutting device 30, and later-described loins 1a, 1b, 1c, and 1d are shaped and cleaned. A work cleaning station 50 is provided along the flow of the cutting operation of the fish body 1 (work) (hereinafter, the upstream side of the cutting operation flow is referred to as the front side, and the downstream side is referred to as the rear side).
A rail 35 for laying the workpiece cutting device 30 in the longitudinal direction of the splitting machine is laid on the upper surface of the support base 2.
Further, the workpiece cleaning station 50 is configured as a mesh-like cleaning surface in order to facilitate drainage when cleaning the loin described later.
[0021]
Reference numeral 10 denotes a work loading station, which is provided with a plurality of (four in this example) guide members 11 extending in the longitudinal direction in parallel with each other on the entrance side of the slitting machine, and the support base on the rear side. A shutter 12 is provided that moves in a direction perpendicular to the center 2a, that is, in the left-right direction to open and close the workpiece positioning station 20.
[0022]
In the work positioning station 20, reference numeral 23 denotes an upper and lower support block, which is provided in a pair at the lower part on both sides of the center 2 a of the support base 2 and supports the fish body 1 from below.
The vertical support block 23 is configured to be movable in the vertical direction by a vertical position adjustment mechanism 231. The vertical support block 23 abuts on the fish body 1 placed on the support base 2 from below to support the weight of the fish body 1 and The fish body 1 is positioned so that the center thereof is the center 2a of the support base 2 in the vertical direction.
[0023]
Reference numeral 22 denotes a left and right support block on the front side, and 21 denotes a left and right support block on the rear side, which are provided in pairs on both sides of the center 2 a of the support base 2.
The left and right support blocks 22 and 21 are configured to be movable in the left and right directions by left and right position adjusting mechanisms 221 and 211, abut against the fish body 1 placed on the support base 2 from the left and right, and the center of the fish body 1 is It is positioned so as to be the center 2a of the support base 2 in the left-right direction.
[0024]
In the workpiece cutting device 30, 31 is configured to be movable in the longitudinal direction of the splitting machine on the rail of the support base 2 through a wheel 34 mounted on the lower part of the carriage.
32 is a longitudinal reciprocating cutter mechanism, as shown in FIG. 7, in the longitudinal direction reciprocating cutter guide 321 vertical reciprocating cutter 322 is constituted by reciprocally supported, said longitudinal direction reciprocating cutter guide An upper portion 39 of 321 is supported on the carriage 31 in a cantilever manner. The vertical reciprocating cutter 322 is configured to be reciprocally movable as indicated by an arrow X in FIG. 7 by a driving device (not shown).
[0025]
As shown in FIG. 8, a lateral reciprocating cutter mechanism 33 is constructed by supporting a lateral reciprocating cutter 332 on a lateral reciprocating cutter guide 331 so as to be capable of reciprocating, and the lateral reciprocating cutter guide. End portions 333 and 334 on both sides of 331 are supported on the carriage 31 in a both-end support form. Further, the lateral reciprocating cutter 332 is configured to be reciprocally movable as indicated by an arrow Y in FIG. 7 by a driving device (not shown).
Further, as shown in FIG. 7, a long hole 323 is formed in an intermediate portion of the longitudinal reciprocating cutter guide 321, and the lateral reciprocating cutter guide 331 is fitted in the long hole 323. As a result, the longitudinal reciprocating cutter guide 321 and the lateral reciprocating cutter guide 331 are supported by each other in the form of being orthogonal to each other through the long hole 323 at an intermediate portion between them.
[0026]
Further, the longitudinal reciprocating cutter mechanism 32 is than the lateral reciprocating cutter mechanism 33 mounted on the moving direction front side of the carriage 31, the forward movement of the該台wheel 31 of the longitudinal reciprocating cutter mechanism 32 The vertical reciprocating cutter 322 is cut into the fish body 1 before the horizontal reciprocating cutter 332 of the horizontal reciprocating cutter mechanism 33, and after moving to some extent, the horizontal reciprocating cutter 332 is cut into the fish body 1. It is configured.
[0027]
3 to 5, reference numeral 36 denotes an upper pressing roller, which is rotatably attached to an end of an arm 37 which is swingably attached to a support portion 38 above the rear portion of the carriage 31. By rolling in contact with the upper part of the fish body 1, vertical and horizontal shakes during cutting of the fish body 1 are suppressed.
[0028]
In FIG. 6, reference numeral 41 denotes a longitudinal pressing roller provided in pairs on both sides of the center 2 a of the support base 2, which is swingably supported by a support part 43 provided at the front part of the carriage 31. It is rotatably attached to the end of the arm 42, and is in rolling contact with the upper part of the fish body 1 so as to suppress the vertical swing of the fish body 1 when the fish body 1 is cut by the longitudinal reciprocating cutter mechanism 32. It has become.
Reference numeral 44 denotes a lateral pressing roller, which is provided behind the longitudinal pressing roller 41 in pairs on both sides of the center 2 a of the support base 2. The lateral pressure roller 44 is rotatably attached to an end of an arm 45 that is swingably supported by a support portion 46 provided at the rear portion of the carriage 31, and is brought into rolling contact with a side portion of the fish body 1. When the fish body 1 is cut by the lateral reciprocating cutter mechanism 33, the lateral shake of the fish body 1 is suppressed.
[0029]
Next, when manufacturing the tuna loin using the cutting machine configured as shown in FIGS. 3 to 8, when the fish body 1 is placed on the guide member 11 of the work loading station 10, the fish body 1 is The guide member 11 is slid onto the support table 2 of the work positioning station 20 by opening the shutter 12.
[0030]
In the positioning station 20, the vertical support block 23 is contacted from below by moving the vertical support block 23 in the vertical direction by the vertical position adjustment mechanism 231 to the lower part of the fish body 1 that is input from the workpiece input station 10 onto the support base 2. The weight of the fish body 1 is supported, and the vertical positioning is performed so that the center of the fish body 1 coincides with the center 2a of the support base 2 in the vertical direction.
In the positioning station 20, the left and right support blocks 22 on the front side and the left and right support blocks 21 on the rear side provided in pairs are moved in the left and right directions by the left and right position adjustment mechanisms 221 and 211, thereby The fish body 1 is abutted from the left and right, and positioned so that the center of the fish body 1 coincides with the center 2a of the support base 2 in the left-right direction, thereby restraining left and right shake.
[0031]
Next, the longitudinal reciprocating cutter 322 of the longitudinal reciprocating cutter mechanism 32 is reciprocated in the vertical (vertical) direction, and the lateral reciprocating cutter 332 of the lateral reciprocating cutter mechanism 33 is moved in the horizontal (horizontal) direction. While reciprocating, the carriage 31 is moved by a carriage drive mechanism (not shown), and the longitudinal reciprocating cutter 322 of the longitudinal reciprocating cutter mechanism 32 in the workpiece cutting device 30 is moved behind the fish body 1 as shown in FIG. It moves to the front side via the wheel 34 to a position where it abuts on the end.
Then, the upper pressing roller 36 is brought into contact with the upper part of the fish body 1 by swinging the arm 37 downward from the upper position indicated by a chain line in the rear part of FIG. Suppress.
[0032]
Further, the pair of vertical pressing rollers 41 are caused to roll on the upper surface near the tail of the fish body 1 by swinging the arm 42 downward to suppress the vertical shake of the fish body 1 at the time of cutting. The pair of lateral pressing rollers 44 are caused to roll in contact with the side surface close to the tail of the fish body 1 by swinging the arm 45 to the side, thereby suppressing the lateral vibration of the fish body 1 during cutting.
[0033]
Next, when the carriage 31 is moved to the front side at a preset moving speed, the vertical reciprocating cutter 322 first cuts into the fish body 1 while reciprocating in the vertical direction from the position shown in FIG. Next, the horizontal reciprocating cutter 332 is cut into the fish body 1 while reciprocating in the left-right direction, and moves forward. Therefore, the vertical reciprocating cutter 322 and the lateral reciprocating cutter 332 are simultaneously centered on the fish body 1. The fish body 1 is moved along the bone 1g, and the fish body 1 is cut into four at the same time at the vertical cutting surface 4 and the horizontal cutting surface 5 shown in FIG. 1 to cut out the loins 1a, 1b, 1c and 1d.
[0034]
Therefore, according to this embodiment, the longitudinal reciprocating cutter 322 and the transverse reciprocating cutter 332 which are orthogonal to each other are simultaneously moved in the longitudinal direction of the fish body 1 so that the fish body 1 is longitudinally cut and cut along the fish body center. 5, the loins 1a, 1b, 1c, and 1d are manufactured in one step of cutting the loins 1a, 1b, 1c, and 1d into four cross-sections. The cutting time of the fish body 1 will be shortened to half or less compared to the conventional technique for producing loin in two steps. Thereby, the freshness fall of the fish body 1 in a cutting process decreases.
[0035]
Further, the loins 1a, 1b, 1c, and 1d cut into four parts as described above have a large surface area, and therefore (surface area / volume) increases, and at the same time, one-step cutting in the vertical and horizontal directions. Thus, the loins 1a, 1b, 1c and 1d are manufactured, so that the sizes of the loins 1a, 1b, 1c and 1d are made uniform. Accordingly, the freezing efficiency of the loins 1a, 1b, 1c, and 1d at the time of freezing in the subsequent process becomes good, the freezing time is shortened, and the quality of the loins 1a, 1b, 1c, and 1d becomes uniform.
[0036]
Further, since the vertebra 1g at the center of the fish body 1 remains together with the bone 1e inside the fish body in each of the loins 1a, 1b, 1c, and 1d, the rigidity of the body is improved. Thereby, it is possible to prevent the loins 1a, 1b, 1c, and 1d from being broken or collapsed when the fish body 1 is transported or frozen.
[0037]
【The invention's effect】
As described above, according to the present invention, loin is manufactured by one-step cutting by simultaneous movement of two orthogonal cutters. Therefore, the cutting time of the fish is less than half that of the conventional technique for manufacturing loin by two-step cutting. As a result, the fish body is less reduced in freshness during the cutting process.
Furthermore, the loin cut into four parts has a large surface area, and thus a (surface area / volume) ratio. Thereby, the freezing efficiency of loin at the time of freezing becomes good, the freezing time is shortened, and the quality of loin becomes uniform.
Therefore, a high quality loin having a good freshness can be obtained.
[0038]
In particular, if constructed as described in claim 2, the vertebrae at the center of the fish remain in each loin, so that the rigidity of the body is improved and the occurrence of cracks and collapses during transportation or freezing is prevented. And high quality loin can be obtained.
[Brief description of the drawings]
1A and 1B show a tuna loin structure according to an embodiment of the present invention, in which FIG. 1A is a perspective view of a two-divided portion, and FIG.
FIG. 2 is a perspective view showing a state immediately before cutting a fish.
FIG. 3 is a side view of the loin production splitting machine.
4 is a view (plan view) taken along an arrow A in FIG. 3;
FIG. 5 is a view taken in the direction of arrow B in FIG. 3;
6 is a CC view of FIG. 3;
FIG. 7 is a side view of a longitudinal reciprocating cutter mechanism.
FIG. 8 is a side view of a lateral reciprocating cutter mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fish body 1a, 1b, 1c, 1d Loin 1e, 1g Bone 2 Support stand 2a Center of support stand 4 Vertical cut surface 5 Horizontal cut surface 10 Work input station 20 Work positioning station 21, 22 Left and right support block 23 Vertical support block 30 Work piece Cutting device 31 Cart 32 Vertical reciprocating cutter mechanism 33 Horizontal reciprocating cutter mechanism 36 Upper pressing roller 41 Vertical pressing roller 44 Horizontal pressing roller 50 Work washing station

Claims (6)

A large fish such as tuna 4 in the vertical and horizontal directions of the fish around the vertebrae in a plane perpendicular to the longitudinal direction of the fish along the extending direction of the vertebrae (hereinafter referred to as the longitudinal direction of the fish). A method for cutting fish that is cut and divided into pieces .
A vertical reciprocating cutter for cutting the fish body in the vertical direction and a horizontal reciprocating cutter for cutting the fish body in the horizontal direction perpendicular to the vertical reciprocating cutter, the vertical reciprocating cutter and the horizontal reciprocating cutter. The fish body is moved and positioned so that the fish vertebra is located at the center of the support base corresponding to the orthogonal crossing position of the two cutters.
In a state where the vertical and horizontal shakes of the fish body 1 are suppressed at the positioning position,
A fish cutting method, wherein the two cutters are simultaneously moved in the front-rear direction of the fish body, and the fish body is cut into four cross sections along the center of the vertebrae of the fish body to produce a loin (four-part body). Split method Court fish according to claim 1, characterized in that the cutter cut such vertebra least fish center to the each loins remains. After incubation placing the fish on the support base, those right and left supporting block movable in the left right direction while supporting the fish body with possible vertical support block moves upward downward direction from the lower left and right sides to the fish 2. The fish cutting method according to claim 1, wherein the fish body is stopped by touching, the fish body is positioned at a predetermined position, and the fish body is cut by the two cutters . In cutting the fish in two cutter for reciprocating at right angles to each other, it cuts the longitudinal reciprocating cutter which reciprocates above downward toward the previously fish, then laterally reciprocated to reciprocate in the left right direction 2. The method for cutting fish according to claim 1, wherein a cutter is cut into the fish body. 2. The cutting according to claim 1, wherein when cutting the fish with two cutters that reciprocate in a direction perpendicular to each other, the fish is cut while being pressed by a pressing roller mechanism from the upper surface side and both side surfaces of the fish body. How to split fish. A fish structure obtained by cutting a fish of a large fish such as a tuna by the splitting method according to claim 1 , so that at least a vertebra at the center of the fish remains in the fish body from which the head and organs of the fish are removed. A fish structure characterized in that the vertebrae at the center of the fish body remain together with the bones inside the fish body in each loin that is formed into a quadrant that is cut into four parts along the center of the fish body.

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