JPH072074B2 - Three-piece grater device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fish body grazing device for grabbing fish bodies such as kare or hirame into three pieces.

[0002]

2. Description of the Related Art Conventionally, an apparatus for lowering fish bodies such as a kare or an inspiration into three pieces is sandwiched between a pair of endless conveyor belts to convey the fish bodies, and each conveyor belt conveys the fish bodies. After being cut from both sides in the vertical direction to the vicinity of the root of the midbone by the rotary blades that make up and down each pair while sandwiching the vicinity of the midbone from both sides, they are arranged behind the rotary blades that make up each pair in the conveying direction. The pair of fixed blades is configured to cut the body-cutting portion not cut by each rotary blade along the midbone and lower it into three pieces.

In such a prior art, since the pair of fixed blades are provided on the downstream side of the rotary blade in the transport direction with a space therebetween, the fish bodies transported by the transport belt to the downstream side of the transport direction are different from each other. Immediately after being cut by the rotary blade, it is slightly displaced by the rotational force of each rotary blade and the pressing force of the conveyor belt, and when subsequently cut by each fixed blade, the cutting position by each rotary blade and each fixed There is a problem that the cutting position of the blade deviates, a large number of blade shapes are formed on the fillet cut from the midrib, and the cutting quality deteriorates.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to cut a fish body without forming a large number of blade shapes to obtain a fillet with improved quality, and three pieces of the fish body are grated. It is to provide a device.

[0005]

According to the present invention, there is provided a pair of conveyor belts for carrying on the mid-bone of a headless fish body from both sides in the thickness direction of the fish body and carrying them with the head-to-caudal direction substantially horizontal, and the above-mentioned conveyor belt. A pair is formed on both sides in the up-down direction with respect to the transport path of the headless fish that is transported substantially horizontally by the belt, and is provided so as to spread apart from each other in the vertical direction on both sides from the transport path, A rotary blade that cuts the headless fish from the back side and the abdomen side to the vicinity of the midbone, and is arranged at a slight distance downstream from the portion of the two pairs of rotary blades that are closest to each other in the up-down direction. A fish body having a tapered tip portion and a pair of fixed blades for cutting an uncut portion of a headless fish body that has not been cut by the two pairs of rotary blades, and a pair of fixed blades. It is a grater device.

[0006]

According to the present invention, a pair of conveyor belts conveys a headless fish body with its head-to-tail direction substantially horizontal, and the headless fish body is conveyed in the middle of this conveyance path by a pair of upper and lower rotary blades on the back and abdomen. It is cut from both sides to near the middle bone.
The uncut portion near the midbone that has not been cut by the pair of rotary blades is cut by the pair of fixed blades. Since the respective tip portions of these fixed blades are arranged close to the conveying direction downstream side from the portion which is closest to the vertical direction of the rotary blade, the fish body is separated from the rotary blade before the fish body is separated from the rotary blade. The fixed blade is inserted into the cut surface cut by the rotary blade before it is disengaged and displaced, and the uncut portion is cut without shifting the cut surface by the fixed blade from the cut surface by the rotary blade. It In this way, a fillet of improved quality is obtained without undesirably many cutting edges being formed in the fillet cut from the midbone.

[0007]

1 is a vertical sectional view showing a fish body three-grating device 1 according to an embodiment of the present invention, and FIG. 2 is a horizontal sectional view of a fish body three-grating device 1. The pair of endless conveyor belts 3a, 3b are driven by a pair of pulleys 4a, 5a; 4b, 5b, which are rotatably driven about vertical rotation axes parallel to each other.
Is wound around and horizontally stretched, and each of the conveyor belts 3a, 3
The headless fish body F whose head is removed from the chute 7 is provided between the stretched portions 6a and 6b that are close to each other b, and the head side is the leading side, and the abdomen F1 is downwardly supplied by the operator. Then, it is conveyed substantially horizontally toward the downstream side in the conveying direction A.

On the downstream side of the pulleys 4a and 4b on the upstream side in the transport direction A, there is provided a rotary blade 8 for laparotomy which is rotationally driven in the direction of arrow B about a horizontal rotation axis. On the downstream side of the rotary blade 8 in the transport direction A, there is provided a gating pulley 9 for removing the internal organs of the abdominal cavity of the fish F in which the abdomen F1 of the fish F has been cut open in the head direction by the rotary blade 8 for abdomen. To be The gating pulley 9 is also driven to rotate in the arrow C direction around the horizontal axis.
A support member 10 having an inverted U-shaped cross section perpendicular to the member axis is provided on the downstream side of the gating pulley 9 in the transport direction A, and the fish body F from which the internal organs have been removed is provided above the transport belts 3a and 3b. Supported by the support member 10 in a state of being elastically pressed by the pressing members 11 and 13,
It is transported toward the downstream side in the transport direction A without being displaced undesirably.

On the downstream side of the supporting member 10 in the conveying direction A, as shown in FIG.
4a, 14b; 15a, 15b are provided. The pair of rotary blades 14a, 14b; 15a, 15b have an angle θ in a direction in which they approach each other as they approach the conveyance path of the fish F.
1 and θ2, and they are inclined, and these angles θ1 and θ
2 is selected to be, for example, about 2 to 7 degrees. The stretched portions 6a, 6b of the conveyor belts 3a, 3b are
The widths W1 and W2 in the vertical direction in FIG. 3 are thinly selected so as to sandwich only both sides of the widths W1 and W2.
Is, for example, about 1 cm. As a result, the fillet F is not pressed against the rotary blades 14a, 14b; 15a, 15b by the conveyor belts 3a, 3b, and is smoothly rotated in the direction D1, D2 opposite to the conveyor direction A at the portion near the conveyor path. Cutting surfaces 17a, 17 up to the vicinity of the middle bone 16
b; 18a and 18b can be formed. In such a state, the fillets F3 and F4 are connected to the remnant F2 including the middle bone 16 and the branch bones by the uncut portions 19a and 19b.

FIG. 4 is an enlarged side view showing the vicinity of the fixed blades 20a and 20b, and FIG. 5 is a sectional view taken along the section line VV of FIG. Rotating blades 14a, 1 which make up and down each pair
4b; portions 21a, 21b; 23a, 23b closest to the vertical direction of 15a, 15b (vertical direction in FIG. 4),
There is an interval d1 in the up-down direction, and the blade edges formed at the tips of the fixed blades 20a, 20b are spaced from the intermediate position of this interval d1 downstream in the transport direction A with a slight interval d2. The interval d1 is determined corresponding to the thickness of the mid-bone 16 of the fish body to be cut, and for example, 1 cm
Selected to the degree. The distance d2 is the same as that of the rotary blade 1 described above.
4a, 14b; 15a, 15b, so that the cutting edge needs to be inserted immediately after being cut, for example, 2 to 3 mm
It is chosen to the extent. Furthermore, each rotary blade 14a, 14b;
The distance d3 in the horizontal direction between 15a and 15b corresponds to, for example, the width of the root of the branch bone, and is, for example, 2 to
It is selected to be about 3 mm.

The fixed blades 20a and 20b are formed by curving in a circular arc shape whose cross section perpendicular to the member axis is convex outward (upward and downward in FIG. 5), and the plate in the vicinity of the downstream end of the conveying direction A is a plate. Attaching members 25a, 2 by screw bolts 24a, 24b
It is fixed to 5b. The blade tip portions 26a and 26b of the fixed blades 20a and 20b are, as shown in FIG.
4a, 14b; 15a, 15b are formed so as to extend more inward than the cutting edges of the blades, and the fixed blades 20a, 20b can reliably separate the residue F2 from the fillets F3, F4. In particular, as described above, the blade edges of the fixed blades 20a, 20b are spaced a slight distance d2 downstream of the respective portions 21a, 21b; 23a, 23b of the rotary blades 14a, 14b; 15a, 15b in the transport direction A. Since it is provided, the cutting surface 1 by each rotary blade 14a, 14b; 15a, 15b
7a, 17b; 18a, 18b to fixed blades 20a, 2
There is no possibility that the cut surface due to 0b will be displaced, and therefore there will be no possibility that an undesirably large number of blade shapes will be formed on the fillets F3, F4, and a good quality fillet can be obtained.

Further, since each of the fixed blades 20a and 20b is formed in an arc shape, it is possible to reduce the fish meat adhering to the vicinity of the mid-bone 16 as much as possible and improve the yield. Furthermore, each rotary blade 14a, 14b; 15
Since a and 15b are provided in pairs vertically and the conveyor belts 3a and 3b are driven to run in a substantially horizontal direction, the feeding position of the fish F can be lowered, and therefore the chute 7 can be provided. It is possible to lower the mounting position of, and it is possible to perform the feeding operation of the fish F more easily and improve the working efficiency, as compared with the configuration in which the fish is conveyed from above to below, for example.

The residue F2 thus separated by the fixed blades 20a, 20b falls on the chute 26 and is collected in a container (not shown).

[0014]

As described above, according to the present invention, since the pair of conveyor belts are driven to travel in the horizontal direction,
It is possible to set the feeding position of the fish bodies between the respective conveyor belts to be low, and the efficiency of the fish body feeding operation can be significantly improved. Further, since the fixed blade is provided closer to the downstream side than the portion closest to the top and bottom of the rotary blades forming each pair up and down, the cutting surface formed by the rotary blades has a cut surface formed by the fixed blades. There is no danger of slipping,
As a result, there is no possibility that an undesirably large number of blade shapes will be formed on the cut fillet, and the cutting quality can be improved.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a fish grazing device 1 according to an embodiment of the present invention.

FIG. 2 is a horizontal cross-sectional view of the fish body grazing device 1.

3 is an enlarged cross-sectional view taken along the section line III-III in FIG.

FIG. 4 is an enlarged side view showing the vicinity of fixed blades 20a and 20b.

5 is a sectional view taken along the section line VV in FIG.

6 is a cross-sectional view taken along the section line VI-VI in FIG.

[Explanation of symbols]

 1 Three-grating device for fish bodies 3a, 3b Conveyor belt 8 Rotating blade for laparotomy 9 Gating pulleys 14a, 14b; 15a, 15b Rotating blade 16 Middle bones 17a, 17b; 18a, 18b Cutting surface 19a, 19b Uncut portion 20a, 20b Fixed blades 21a, 21b; 23a, 23b Part F Fish body F1 Abdomen F2 Residue F3, F4 Fillet

Claims (1)

[Claims] 1. A pair of conveyor belts for carrying on a mid-bone of a headless fish body from both sides in the thickness direction of the fish body and carrying them with the head-to-caudal direction substantially horizontal, and the above-mentioned carrying belts to carry the belt substantially horizontally. The headless fish are formed in pairs on both sides in the vertical direction with respect to the transportation path, and are provided so as to spread apart from each other in the vertical direction on both sides of the transportation path. And a rotary blade that cuts from the side to the vicinity of the midbone, and a tapered tip portion that is arranged at a slight interval downstream from the portion closest to the vertical direction of the two pairs of rotary blades in the transport direction. And a pair of fixed blades for cutting the uncut portion of the headless fish body that has not been cut by the two pairs of rotary blades, along with the mid bone, a three-piece grazing device for a fish body.