JPH0763305B2 - Fish cutting method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fish body cutting method for cutting a fish body so that the apparent size thereof becomes substantially uniform.

[Prior Art] The shape of the fish gradually becomes thinner toward the tail side, and if the fish were simply cut into pieces with the same weight, they would be displayed and sold at large retail stores. In this case, there was a problem that the sizes of the fillets were uneven.
Therefore, conventionally, in order to make the sizes of the fillets uniform, for example, as shown in Japanese Patent Publication No. 52-42717, the plate on which the fish is placed is sequentially turned along a curved guide according to a predetermined curve. However, the fish were intermittently transferred, and when stopped, the fish body was cut with a cutting blade so that the length and weight of the fillets were substantially the same.

[Problems to be Solved by the Invention] However, in such a conventional cutting method, since the plate is intermittently transferred along a guide curved according to a predetermined curve, the shape of the fish fillet is determined by the shape of the guide. However, the shape of the fish body is various, and if it was cut along a guide of a fixed shape,
There is a problem that the sizes of the fillets are not necessarily the same, and the curve of the guide must be changed to make them the same.

Therefore, the present invention aims to solve the above problems,
It is an object of the present invention to provide a fish body cutting method capable of easily cutting a fish body of various shapes into pieces of substantially uniform size.

[Means for Solving the Problems] In order to achieve the above object, the present invention takes the following methods to solve the problems. That is, the fish body is intermittently fed in the longitudinal direction, the fish body is rotated around a center line parallel to the feeding direction, and the fish body is fed in an inclined state on the tail side, and the fish body head is fed. On the part side, the fish is fed in a substantially horizontal state, and the fish is cut by moving a cutting blade within an inclined surface of a predetermined angle tilted around a center line intersecting with the feeding direction of the fish, That is a method of cutting a fish body, which is characterized by obtaining a fillet of a uniform size.

In addition, while intermittently feeding the fish body in the longitudinal direction, the tail side of the fish body passes over the inclined portion that lifts the end of the mounting table, and the head side of the fish body passes over the flat portion of the mounting table. The fish body is fed with the tail side inclined, and the head side of the fish body is fed in a substantially horizontal state, and the fish body is tilted around a center line intersecting with the feeding direction of the fish body. The fish body cutting method is characterized in that the cutting body is cut by moving the cutting blade within the inclined plane of the predetermined angle to obtain a fish meat of substantially uniform size.

[Operation] In the fish body cutting method of the above method, when the fish body is cut, the fish body is rotated around a center line parallel to the feeding direction and around the center line parallel to the feeding direction to On the side of the fish body, and on the head side of the fish body in a substantially horizontal state, or on the tail side of the fish body to pass over the sloped part where the end of the mounting table is lifted, The part side passes over the flat part of the mounting table and feeds with the tail side of the fish body inclined, and the head side of the fish body feeds in a substantially horizontal state, with respect to the feeding direction. The cutting blade is moved within an inclined plane of a predetermined angle tilted around the intersecting center lines to cut the fish body to obtain a fillet. Therefore, the cutting length becomes longer toward the tail side of the fish body, and the size of the fillet becomes substantially uniform.

Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a fish body cutting device to which a fish body cutting method according to an embodiment of the present invention is applied. 1 is a fish body,
The head and tail have been cut off in advance, and the body has been lowered. This fish body 1 is placed on a placing table 2, and the placing table has a drawing arrow around a rotation center line 4 including a ridge line at one end thereof.
It is rotatably supported in the A and B directions, and a large gear 6 is integrally fixed coaxially with the rotation center line 4. A small gear 10 fixed to the rotation shaft of the motor 8 is meshed with the large gear 6, and an encoder 12 for detecting the rotation amount of the rotation shaft of the motor 8 is integrally formed at the rear portion of the motor 8. It is installed.

A feed bar 14 extending in a direction orthogonal to the rotation center line 4 is arranged on the mounting table 2 so as to be movable in the rotation center line 4 direction. A chain 16 is engaged with the end of the feeding bar 14, and the chain 16 is stretched between two sprockets 18 (only one is shown). One sprocket 18 is fitted to the rotation shaft of the motor 20, and an encoder 22 that detects the rotation amount of the rotation shaft of the motor 20 is integrally attached to the rear portion of the motor 20.

On the other hand, around the swing center line 24 that intersects with the rotation center line 4, a gate-shaped frame 26 that is swingably supported in the directions of arrows C and D is arranged. A large gear 28 is integrally mounted coaxially with the swing center line 24 of the portal frame 26, and the small gear 32 fixed to the rotation shaft of the motor 30 is attached to the large gear 28.
Are meshed. An encoder 34 that detects the amount of rotation of the rotation shaft of the motor 30 is integrally attached to the rear portion of the motor 30.

Further, a disc-shaped cutting blade 36 is rotatably supported in the gate-shaped frame 26 in the direction of arrow E in the figure, and movably in the direction of arrow F in the figure. The cutting blade 36 is formed so as to be rotated and moved by a motor 38 attached to the portal frame 26. An encoder 40 that detects the amount of rotation of the rotating shaft of the motor 38 is integrally attached to the rear portion of the motor 38.

Next, the operation of the fish cutting device of this embodiment will be described together with the fish cutting method.

First, the fish body 1 is placed on the mounting table 2 so that the longitudinal direction of the fish body 1 faces the direction of the rotation center line 4 of the mounting table 2 and the head side of the fish body 1 faces the feeding bar 14 side. Placed. Further, the motor 8 is rotationally driven, and the mounting table 2 is rotated around the rotation center line 4 in the direction of the arrow B via the small gear 10 and the large gear 6 so that the predetermined angle is obtained from the encoder 12. It is rotated until it is detected. As a result, the entire fish body 1 is rotated around the rotation center line 4 at a predetermined angle.

On the other hand, the motor 30 is rotationally driven to swing the gate-shaped frame 26 around the swing center line 24 in the direction of arrow C or D through the small gear 32 and the large gear 28, and the encoder 34 sets a predetermined angle. It is tilted until it is detected that the inclination angle of is reached. Therefore, the cutting blade 36 has the inclined surface Z having the predetermined inclination angle.
Although it moves inside, the line of intersection between the inclined surface Z and the surface extending from the surface of the mounting table 2 is oblique as shown by the chain double-dashed line in the fish body 1 in FIG. Therefore, the fish body 1 can be obliquely cut by the cutting blade 36. When the rotation angle around the rotation center line 4 of the mounting table 2 is reduced with the inclination angle of the inclined surface Z fixed at a predetermined angle (direction of arrow A in FIG. 1), the inclined surface Z and the mounting table 2 are separated. The line of intersection with the extended surface of the surface is nearly perpendicular to the rotation center line 4. When the rotation angle is increased (direction of arrow B in FIG. 1), the line of intersection between the inclined surface Z and the surface obtained by extending the surface of the mounting table 2 becomes more oblique.

Next, the motor 20 is rotationally driven, and the feeding bar 14 is moved along the rotation center line 4 on the mounting table 2 via the sprocket 18 and the chain 16. As a result, the fish 1 is pushed by the feeding bar 14 and fed on the mounting table 2 in the direction of the rotation center line 4. When the rotation amount of the motor 20 is detected by the encoder 22 and the movement amount of the feeding bar 14 corresponding to the rotation amount reaches a predetermined amount, the rotation of the motor 20 is stopped and the fish body 1 is intermittently fed.

Then, the cutting blade 36 that is rotationally driven by the motor 38 is rotated in the arrow E direction and moved in the arrow F direction,
The tail portion side of the fish body 1 is cut by the cutting blade 36 moving in the inclined surface Z as shown by the chain double-dashed line in FIG.

When the cutting is completed, the motor 8 is rotationally driven to rotate the mounting table 2 in the direction of the arrow A around the rotation center line 4 to slightly reduce the angle of the mounting table 2. Next, the motor 20 is driven to rotate, and the feeding bar 14 is moved along the rotation center line 4 by a predetermined amount to intermittently feed the fish body 1. Then, the cutting blade 36, which is rotationally driven by the motor 38 again, moves in the inclined surface Z,
The fish body 1 is cut as shown by the chain double-dashed line in FIG.

In this way, the above-described operation is repeated and the fish body 1
Every time the paper is intermittently fed along the rotation center line 4, the mounting table 2
The angle is gradually reduced, that is, the angle is large on the tail side of the fish body 1, and the angle is reduced toward the head side of the fish body 1 and the fish body 1 is cut one after another.
By rotating and cutting the fish body 1 around the rotation center line 4, the cutting length becomes long on the tail side of the fish body 1 and becomes short on the head side of the fish body 1. In addition, half body 1
If the shape is different, the rotation center line 4 may be provided on the opposite side of the mounting table 2 and the mounting table 2 may be rotated in the opposite direction.

As described above, in the fish body cutting method of this embodiment, the fish body 1 is rotated about the rotation center line 4 parallel to the feeding direction of the fish body.
The fish is fed in an inclined state on the tail side and is fed in a substantially horizontal state on the head side of the fish body 1 and is inclined at a predetermined angle about the swing center line 24 intersecting the feeding direction. The cutting blade 36 is moved in the plane Z to cut the fish body 1 to obtain a fillet.

Therefore, as shown in FIG. 2, the cut pieces of the fish body 1 have a fillet widths a1 to a5 and fillet lengths b1 to b5, respectively.
And are almost equal. Therefore, the width a and length b of this fillet
The size (a × b) multiplied by is almost uniform, and the fish body 1
The apparent size of the fillet after cutting is almost uniform. Thus, by rotating the fish body 1 around the rotation center line 4, the apparent size of the fillet can be made substantially uniform. When the shape of the fish body 1 is changed, the cutting length can be changed according to the shape of the fish body 1 simply by changing the rotation angle around the rotation center line 4, and various kinds of fish body 1 can be easily changed. The apparent size of the fillet can be made substantially uniform depending on the shape.

Next, the fish cutting device of the second embodiment to which the present fish cutting method is applied will be described with reference to FIG.

The mounting table 52 on which the fish body 1 is mounted has a horizontal flat portion 54 in the central portion thereof, and both ends on the cutting blade 36 side are respectively lifted to form inclined portions 56, 58. The inclined portions 56 and 58 are configured so that the angle of inclination can be changed by a motor or a cylinder (not shown). Further, the size of the inclined portions 56, 58 to be lifted, that is, the size of the area of the triangle can also be changed, so that the size of various fish bodies 1 can be adapted. . Feed bar 6 having notches corresponding to the inclined portions 56 and 58
By 0, the fish body 1 is intermittently fed in the direction of the arrow G.
When the fish body 1 is placed on the mounting table 2, the tail side of the fish body 1 is placed on the inclined portion 56 or 58 and the head side is placed on the flat portion 54.

The fish body 1 is intermittently fed by the feeding bar 60 to cut the fish body 1 into fillets. As a result, only the tail side of the fish body 1
It is fed in an inclined state and cut as shown by the two-dot chain line in FIG. The fish body 1 is cut while rotating only on the tail side. The shape of the fish body 1 is that the head side is thick and wide. However, the thickness gets thinner as it gets closer to the tail side,
Since the width becomes narrow, by adopting a configuration in which only the tail portion side is rotated and cut, it is possible to obtain a device that can obtain a fillet having a substantially uniform apparent size with a simple configuration. When the shape of the half-body fish body 1 is different, the tail portion may be placed on the other inclined portion 58.

As a result, the structure of the mounting table 2 is simplified, and in order to make the apparent size of the fillet substantially uniform, only the tail of the fish body 1 that is particularly required can be rotated at a predetermined angle at the cutting position. It is possible to obtain a fillet having an apparently uniform size.

Note that the present invention is not limited to such embodiments and can be carried out in various modes without departing from the scope of the present invention.

[Effects of the Invention] As described in detail above, in the fish body cutting method of the present invention, the fish body is fed in an inclined state on the tail side and is fed in a substantially horizontal state on the head side of the fish body. Since it cuts with a cutting blade that moves in the plane, it is possible to obtain fillets with a virtually uniform apparent size, and even for fish with various shapes, the rotation angle of the mounting table around the rotation center line By changing the angle or changing the angle of inclination of the inclined portion, it is possible to easily obtain a fillet having a substantially uniform apparent size.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a fish body cutting device to which the fish body cutting method of the present invention is applied, FIG. 2 is an explanatory view of a fish body cut by this fish body cutting method, and FIG. 3 is a second embodiment of the present invention. FIG. 3 is a schematic configuration diagram of a fish body cutting device as an example. 1 ... Fish body, 2 ... Mounting table 4 ... Rotation center line, 14 ... Feeding bar 24 ... Swing center line, 26 ... Gate-shaped frame 36 ... Cutting blade, Z ... Inclined surface

Claims (2)

[Claims] 1. A fish body is intermittently fed in the longitudinal direction, the fish body is rotated around a center line parallel to the feeding direction, and the fish body is fed in an inclined state on the tail side, The fish is fed in a substantially horizontal state on the head side, and the fish is cut by moving a cutting blade within an inclined plane at a predetermined angle tilted around a center line intersecting the feeding direction of the fish. Then
A method for cutting a fish body, which comprises obtaining fillets of substantially uniform size. 2. A fish body is intermittently fed in the longitudinal direction, the tail side of the fish body passes over an inclined portion where the end of the mounting table is lifted, and the head side of the fish body is on a flat portion of the mounting table. , And feed the fish body with the tail side inclined, and with the head side of the fish body fed in a substantially horizontal state,
It is characterized in that a cutting blade is moved within an inclined plane of a predetermined angle tilted around a center line intersecting with the feeding direction of the fish body to cut the fish body, and a fillet of substantially uniform size is obtained. How to cut the fish.