JPS6211569B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a fish ovary removal device.

Conventional ovary extraction equipment for herring, cod, etc. involves aligning the tips of the fish heads and then using a knife placed at a predetermined position to open the fish's abdomen and remove the ovaries. Due to the size of the ovaries, there were drawbacks such as damage to the ovaries or the inability to remove them.

An object of the present invention is to provide a device that allows the ovary to be removed very smoothly without damaging it.

The ovary retrieval device of the present invention includes a hanging transport device that holds the head of a fish and runs the fish in a hanging position with the tail hanging downward; a cutter that cuts off the head of the fish while the fish is running in the hanging position; a pair of tail clamping belts that hold the tail of a fish while running and twist approximately 90 degrees to bring the fish into a horizontal position; a horizontal guide that supports the torso of the fish in a horizontal position; and a pair of tail clamping belts that are parallel to the tail clamping belts. It has a back support guide that touches the back of a fish that has fallen down in a horizontal position, and an abdominal pressure device that maintains a predetermined distance from the back support guide and presses the abdomen of the fish. It is characterized by a structure in which the ovary is removed after the fish head is severed.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a front view of the entire embodiment of the present invention.

The conveyor 1 is equipped with a bucket or partition plate (not shown) on which the fish body F1 is placed laterally, and a head portion 1
a, a torso part 1b, and a tail part 1c (see Fig. 5), and there is a gap between the head part 1a and the torso part 1b that allows the insertion of a clipping belt, which will be described later. It is provided. The conveyor 1 is a horizontal belt stretched by a starting sprocket 2 and a trailing sprocket 3. This conveyor 1
Clamping belts 5 and 6 are provided after the terminal end for clamping and transporting the gill cover of the fish body.
The axes of the start-side sprockets 7 and 8 are provided horizontally like the sprockets of the conveyor 1, but the axes of the end-side sprockets 9 and 10 are provided vertically, and the belts 5 and 6 extend in the first half from the starting end to the middle section. The belt is twisted by 90 degrees at the end, and the direction in which the belt faces the belt in the latter half is almost horizontal. As shown in FIG. 2 or 6, the clamping belts 5 and 6 are V-belts in which pins 9 are continuously driven into the center. A rotary cutter 11 for cutting and removing the fish head is disposed at the rear half of the clamping belts 5 and 6 so as to cut directly below the clamping belts.

Below the clamping belts 5 and 6 is a cut fish body F.
Tail portion holding belts 12 and 13 are provided for holding and conveying the tail portions of the two. The axes of the starting sprockets 14 and 15 of the clamping belts 12 and 13 are vertical and the clamping direction is horizontal, while the axes of the trailing sprockets 16 and 17 are horizontal. The twist of these belts 12 and 13 is caused by the cutter 11
The clamping is carried out from the vicinity directly below to the middle of the outward journey, and the clamping direction in the latter half of the outward journey is almost vertical. The tail clamping belts 14 and 15 are also the clamping belts 5 and 15 described above.
6, a V-belt with a pin 24 continuously driven into the center is used.

In the latter half of the forward path of the tail clamping belts 12 and 13,
An egg collection device 18 is provided. FIG. 3 shows a plan view of the egg collection device 18, and FIG. 4 shows a side view thereof. Backrest guide 1 along belts 12, 13
9 and 20 are provided, and an egg collection rod 21 is supported at both ends at a predetermined interval from the surface thereof. A chute 22 for collecting ovaries is provided below the egg collecting rod 21. Further, a horizontal guide 23 is provided at the introduction portion to the egg collection device 18.

Next, the action will be explained.

First, the fish F1 to be processed is placed on the bucket of the conveyor 1 with its head aligned with its belly facing forward and its back facing backwards. At this time, as shown in FIG. 5, the pectoral fin of the fish is hanging on the trunk portion 1b. Next, as shown in FIG.
6 pinches the gill cover area. When the conveyor 1 eventually disappears, the fish body is held only by the clamping belts 5 and 6, as shown in FIG. 7, and as the clamping belts twist, the fish body gradually shifts to a hanging position. When the fish reaches a completely hanging posture, the ovary OV is displaced downward from its normal position due to the characteristics of the fish body. The pressing force from the clamping belt further promotes this displacement. In this state, as shown in FIG.
3.

This amputation removes the head and at the same time
Since the torso is released from the pressing force of the clamping belts 5 and 6, the ovary OV protrudes from the cut surface as shown in FIG. Furthermore, the fish body F2 is bent because the tail clamping belts 12 and 13 are not completely twisted by 90 degrees. When the belt is completely twisted by 90 degrees, the belt 1 in Figure 10
As shown in FIGS. 2, 13 and 11, the fish body F2 rests on the horizontal guide 23 with its abdomen facing forward, with the tail leading the way and the cut surface trailing the furthest. Eventually, when the belly of the fish hits the egg collecting rod 21, the fish is pressed against the back guides 19, 20, and as shown in FIG. Therefore, the pressed part moves toward the cut surface. Therefore, the ovary OV is pushed out together with the body fluid and falls onto the chute 22. The fish body F3 after egg collection is released forward from the terminal ends of the tail clamping belts 12 and 13.

The present invention is not limited to the above-mentioned embodiments, and can be implemented by partially replacing the known techniques.

As explained above, according to the present invention, the ovary can be easily removed without damaging the ovary, regardless of the variation in the size of the fish body.

[Brief explanation of the drawing]

1 is a front view of the entire embodiment of the present invention, FIG. 2 is a plan view showing the clamping belt of FIG. 1, and FIG.
FIG. 4 is a plan view of the egg collection device 18 shown in the figure, and FIG. 4 is a side view thereof. FIG. 5 to FIG. 12 are operation explanatory diagrams showing the operation of the embodiment of FIG. 1 over time. 1... Conveyor, 5, 6... Pinching belt (hanging conveyance device), 11... Cutter, 12, 13...
Tail clamping belt, 19, 20... Back support guide,
21...Egg collection stick (egg collection tool), 23...Horizontal guide.

Claims (1)

[Claims] 1. A hanging conveyance device that grips the head of a fish and travels in a hanging position with the tail hanging downward, a cutter that cuts off the head of the fish traveling in the hanging position, and a cutter that holds the tail of the fish in the hanging position. omitted while driving
A pair of tail clamping belts that twist 90 degrees to bring the fish into a horizontal position, a horizontal guide that supports the torso of the fish that has fallen in the horizontal position, and a pair of tail clamping belts that are installed parallel to the tail clamping belt and hit the back of the fish that has fallen in the horizontal position. It has a back support guide and an egg retrieval tool that maintains a predetermined distance from the back support guide and presses the abdomen of the fish, and is configured so that the ovaries are removed after the fish head is cut with the fish's ovaries displaced toward the tail. Fish ovary removal device.