JPH0353668Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a device for removing fish eggs.

Prior Art A typical prior art egg collection device transports a fish using a conveyor belt, cuts off the head of the fish during the transport, and presses the abdomen of the fish from which the head has been cut off to a pressing member. The ovary is removed by pressing the ovary.

Problems to be Solved by the Invention Conventionally, fish bodies are conveyed only by a conveyor belt, which causes variations in the posture of the fish bodies.

Further, the pressing member is attached at a fixed position. Therefore, it is not possible to remove the ovary without damaging it, depending on the size of the fish or the variation in posture.

Since the above-mentioned pressing member collects eggs only by applying pressure to the abdomen of the fish, internal organs such as the stomach and intestines are connected to the ovaries and come out.
The viscera may get stuck on the conveyor belt, making it impossible to remove the ovary and damaging it, or the ovary may be transported along with the fish and not be separated from the fish.

The purpose of the present invention is to provide an egg collection device that can smoothly and reliably extract the ovary without damaging the ovary, regardless of the size of the fish, and improves the speed of egg collection processing.

Means for Solving the Problems The present invention includes: a pair of conveyor belts that grip and convey both sides of a fish body whose head has been cut off; a rotating member having a rotational axis line and capable of moving toward and away from the abdomen of a fish body, the rotating member having a recess formed at least in a portion facing the abdomen of the fish body;
a rotary member in which a plurality of grooves are formed in the recess along the rotational axis; a means for rotationally driving the rotary member in a direction opposite to the traveling direction of the fish body; a biasing means for biasing the fish in a direction close to the abdomen of the fish; and a biasing means that runs in the same direction at substantially the same speed as the conveyor belt, supports the abdomen of the fish, and guides the fish to a position close to the rotating member. This is an egg collecting device characterized by including a feeding belt that carries

Effect According to the present invention, when a fish body with its head cut off is transported, the abdomen of the fish body is held in a stable posture in the recess of the rotating member and is pressed, and the ovary in the abdominal cavity is held. is extruded. The extruded ovary is easily separated from internal organs such as the stomach and intestines in the abdominal cavity of the fish by a groove provided in the rotating member.
This prevents damage to the ovary during removal, and improves the speed of the egg collection process.

Embodiment FIG. 1 is a plan view of an egg collection device 1 showing an embodiment of the present invention, and FIG. 2 is a side view of the egg collection device 1. The egg collecting device 1 includes a pair of starting end pulleys 2a and 2b that are rotationally driven in arrow directions B1 and B2 around a horizontal rotation axis, and these starting end pulleys 2a and 2b.
A pair of conveyor belts 4a, 4b is stretched around terminal end pulleys 3a, 3b which are driven to rotate in directions B3, B4. , 5b are configured to hold the fish F and transport it in the transport direction A.

A plurality of rollers 6a, 6b; 7a, 7b; 8a, 8b are provided on the side where the clamping surfaces 5a, 5b are close to each other.
is provided. Each of these rollers 6a, 6
Spring 9a, 9b, 9c is attached to b; 7a, 7b; 8a, 8b, respectively, and the clamping surface 5
A and 5b are spring-biased in a direction toward each other. This prevents the conveyor belts 4a, 4b from drooping.

A rotating round blade 10 for cutting the head of the fish F is provided near the downstream side of the terminal end pulleys 2a and 2b in the transport direction A, and is driven by a drive motor (not shown). It is rotationally driven in the direction of arrow C around the horizontal axis. A feed belt 11 for holding the trunk of the fish F that hangs downward is provided near the downstream side of the rotary round blade 10 for head cutting in the transport direction. The feed belt 11 is stretched around a pulley 12a that is rotationally driven around a horizontal axis and a pulley 12b that is driven by the pulley 12a, and is driven in the direction D of the arrow. Pulley 12a,
A pulley 12c is provided between the belts 12b and 12b to prevent the feed belt 11 from hanging down.

In the vicinity of the downstream side of the pulley 12b in the transport direction, a drive means 13 rotates the pulley 12b in the direction of the arrow E about the vertical axis, and abuts against the abdomen of the transported fish F to remove the ovaries Fa and Fb. A pressing member 14 is provided. FIG. 4 is a front view of the pressing member 14 used in the egg collection device 1. Pressing member 1
4 is made of a metal material such as stainless steel and has a substantially cylindrical shape, and a smooth recess 14a is formed in the part that corresponds to the abdomen of the fish F, and a V-shaped groove 14b is cut into the recess 14a. It has a unique composition. FIG. 5 shows this pressing member 14.
FIG. 3 is a cross-sectional view taken along the cutting plane line V-V.

FIG. 3 is a perspective view showing important parts of the egg collection device 1, and shows the drive means 13 for the pressing member 14. A base end portion of the pressing member 14, a pulley 15a,
The shafts 16a are fixed so that they have the same axis of rotation. This shaft 16a is supported by a bearing 17a. This bearing 17a is connected to the connecting member 18
The bearing 17b is connected to the bearing 17b via the bearing 17b. Bearing 17b
supports a fixed shaft 16b having the same rotational axis as the pulley 15b. A belt 19 is stretched between the pulleys 15a and 15b. When this shaft 16b is connected to a drive motor (not shown) and rotated in the direction E1 of the arrow, the rotation is transmitted through the belt 19, and the pressing member 14 is driven to rotate in the direction E1 of the arrow. It is configured. Further, a guide rod 20 is provided to protrude from the connecting member 18 .

The guide rod 20 has a blocking piece 2 fixed at a fixed position.
1, and a contact piece 23 is formed at the end thereof. As a result, the pressing member 14 moves from position P1, when the blocking piece 21 contacts the connecting member 18, to position P2, when the blocking piece 21 contacts the abutting piece 23 of the guide rod 20, about the shaft 16b. The structure allows angular displacement over a range of . Further, a spring 24 having one end fixed is attached to the bearing 17a, and the pressing member 14 is spring-biased in the direction G with the shaft 16b fixed at a fixed position as the center of rotation. .

Due to this spring bias and the position of the blocking piece 21, the pressing member 14 is always kept in the vicinity of the conveyor belts 4a, 4b, in a position where it can be pressed against the abdomen of the fish F without contacting the belts 4a, 4b. You can keep it. Further, when the fish body F makes contact, the pressing member 14 can be angularly displaced in the range from the position P1 to the position P2, so that it is configured to be able to press the abdomen regardless of the size of the fish body F. .

With reference to FIGS. 1 to 3, the egg collection processing operation of the egg collection device 1 having the above-described configuration will be described. Fish body F is placed on the conveyor belts 4a and 4b from the starting end side.
is placed with its abdomen facing the conveyance direction A.
The fish body F that has been thrown in has its both sides held by the clamping surfaces 5a,
5b and conveyed, and the head is cut off by the rotary round blade 10 for head cutting.

The cut fish body F is further transported to a position near the cut part and the lower part Fc (see Fig. 2).
is supported by the feed belt 11. As a result, the fish F is conveyed to the vicinity of the pressing member 14 while maintaining its cut end in a horizontal state without hanging down, and its abdomen abuts against the recess 14a of the pressing member 14. At this time, the pressing member 14
4, the abdomen of the fish F is held in tight contact with the recess 14a. In this state, the fish F is transported in the transport direction A by the transport belts 4a and 4b. At the same time, since the pressing member 14 is forcibly rotated in the direction E, the ovaries Fa and Fb are gradually pulled out.

Due to this recess 14a, the abdomen of the fish F does not shift in the vertical direction and always contacts the pressing member 14 in the same state (see Fig. 4), and the V-shaped groove 14b allows the abdomen of the fish F to be pulled out from the abdominal cavity together with the ovaries Fa and Fb. Internal organs such as the stomach and intestines that are about to be removed can be easily separated from the ovaries Fa and Fb, and the ovaries Fa and Fb can be pulled out smoothly without being crushed. Also,
The pressing member 14 pushes the fish body F around the shaft 16b.
Since it is configured to be able to move toward and away from the ovary Fa, regardless of the size of the fish F,
You can take out Fb. Furthermore, the pressing member 1
4 is forced to rotate, so the pressing force acting on the abdomen of the fish F is extremely large compared to a fish that is not driven to rotate, and therefore the ovary
It is possible to shorten the egg collection processing time for discharging Fa and Fb. Therefore, the conveyor belts 4a, 4
b can be run at a relatively high speed to improve the egg collection processing speed.

The ovaries Fa and Fb thus taken out fall and are stored in a container (not shown). Ovarian Fa,
After Fb has been taken out, the fish F is transported by a transport belt and subjected to subsequent processing (for example, three-piece cutting processing).

In the above embodiment, the pressing member 14 is of the type in which a recess 14a and a V-shaped groove 14b are formed as shown in FIG. A pressing member 30 shown in FIG. 6 can be considered as a configuration for realizing the egg collection operation as described above. The pressing member 30 in FIG. 6 is formed in a cylindrical shape. FIG. 7 is an explanatory diagram showing the state in which the abdomen of the fish F is in contact with the pressing member 30. As shown in FIG. 7, the pressing member 30 presses the abdomen of the fish F.
0, the abdomen may shift upwards as shown in Figure 1, or it may shift downwards as shown in Figure 2, causing the posture to become unstable, and the egg retrieval process may become unstable. The problem is expected to be inefficiency. Further, if the ovaries Fa and Fb extruded from the fish body F remain connected to the fish body F by an intestine or the like, they only come into contact with the cylindrical pressing member 30 with a smooth surface such as the intestine, and it is difficult to cut them. . Therefore, the problems described in the prior art section occur. However, these problems can be solved by forming the V-shaped groove 14b as in the above embodiment.

FIG. 8 is a front view of a pressing member 40 of an applied example of the pressing member 14. FIG. By forming a recess 40a and a V-shaped groove 40b in the same manner as the pressing member 14, and integrally forming a truncated conical portion 40c at the lower end thereof, the partially extruded ovaries Fa and Fb are shaped like a truncated cone. It is supported by the portion 40c and can be taken out without being crushed.

Moreover, FIG. 9 is a front view of the pressing member 50 of another embodiment, and FIG. 10 is an explanatory diagram of the egg collection processing operation of the pressing member 50. A type of pressing member 50 in which a V-shaped groove 50a is spirally cut into an S-shaped rod-like member can also be used as a pressing member. This pressing member 50 presses the abdomen of the fish F as shown in FIG. 10, pulls out the ovaries Fa and Fb, and pulls out the ovaries Fa and Fb as shown in FIG.
Fa and Fb are scooped up and supported by the pressing member, and as shown in FIG. 10, the fish F from which the ovaries Fa and Fb have been pulled out returns to its original state. Also, the V-shaped groove 50a is the ovary.
Easily separate Fa, Fb and internal contents. This also allows the egg collection process to be carried out smoothly and reliably.

FIG. 11 shows a pressing member 60 of still another embodiment.
FIG. 11 is a front view of the pressing member 60 of FIG.
FIG. FIG. 12 shows a front view of the hook-shaped pressing member rod 62. The pressing member 60 has a plate member 63 attached to a rotating shaft 61 which is rotationally driven in the direction of the arrow E, and a hook-shaped pressing member rod 62 shown in FIG. 12 is fixed to the shaft 61. The abdomen of the fish F comes into contact with the recess 62a of the hook-shaped pressing member rod 62, and the V-shaped groove 62b presses the abdomen together with the hook-shaped portion 62c, and the ovaries Fa and Fb are removed. Alternatively, only one hook-shaped pressing member rod 62 may be used and rotated in the direction E to remove the ovary.

Furthermore, FIG. 13 shows a pressing member 70 of another embodiment.
FIG. Such a cylindrical body 71 and recess 7
2a and a cylindrical body 72 provided with a V-shaped groove 72b, the rotational axes of which are mutually shifted to form a connected rotating member 70, and the cylindrical body 71 is rotationally driven in the direction of arrow E around the rotational axis of the cylindrical body 71 to collect eggs. Processing may also be performed. This structure can generate a large pressing force with a small torque.

Further, in the structure described above, the fish body is transported with the head-to-tail direction horizontally, but a structure in which the fish body is held and transported in the vertical direction can also be handled in the same way. Also, the recesses 14a, 40a, 62a, 7
The groove formed in 1a is not limited to the V-shaped groove of the above embodiment, but may also be a U-shaped groove, for example, to achieve the present effect.

Effects of the invention According to the invention, regardless of the size of the fish, the ovaries can be removed smoothly and reliably without damaging them, and the egg collection processing speed can be improved.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an egg collection device 1 showing an embodiment of the present invention, FIG. 2 is a side view of the egg collection device 1, FIG. 3 is a perspective view showing important parts of the egg collection device 1, and FIG. 4 is an egg collection device 1. A front view of the pressing member 14 used in the device 1 diagram;
FIG. 5 is a sectional view of the pressing member 14 taken along the cutting plane line V-V, FIG. 6 is a front view of the pressing member 30, and FIG. FIG. 8 is a front view of the pressing member 40 of an applied example of the pressing member 14, and FIG.
The figure is a front view of the pressing member 50 of another embodiment, the 10th
The figure is an explanatory diagram of the egg collection processing operation of the pressing member 50.
1 is a front view and a plan view of a pressing member 60 of another embodiment, FIG. 12 is a front view of a hook-shaped pressing member rod, and FIG. 13 is an explanatory view of a pressing member 70 of another embodiment. 1...Egg collection device, 2a, 2b...Starting end side pulley, 3a, 3b...Terminal end side pulley, 4a, 4b...
...Conveyor belt, 5a, 5b...Pinching surface, 6a, 6
b; 7a, 7b; 8a, 8b...roller, 9a,
9b, 9c, 24... Spring, 10... Rotating round blade for head cutting, 11... Feeding belt, 12a, 12
b, 12c, 15a, 15b...Pulley, 13...
...Press member driving means, 14, 40, 50, 6
0, 70...pressing member, 14a, 40a, 62
a, 71a... recess, 14b, 40b, 62b,
71b...V-shaped groove, 18...Connecting member, 22...
Blocking piece, 40c... receiving surface, 62... hook-shaped pressing member rod, F... fish body, Fa, Fb... ovary.

Claims (1)

[Claims for Utility Model Registration] A pair of conveyor belts that grip and convey both sides of a fish body whose head has been cut off, and a rotation axis that is provided in the middle of a conveyance path of the fish body and that is perpendicular to the conveyance path. a rotary member that can be moved toward and away from the abdomen of a fish body, the rotary member having a recess formed at least in a portion facing the abdomen of the fish body, and a plurality of grooves formed in the recess along the rotational axis. a means for rotationally driving the rotary member in a direction opposite to the direction of movement of the fish body; a biasing means for biasing the rotary member in a direction approaching the abdomen of the fish body; An egg collection device characterized by comprising a feed belt that runs in the same direction at substantially the same speed as the conveyor belt, supports the abdomen of the fish, and guides the fish to a position close to the rotating member.