JPS6098938A - Fish egg take-out apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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 variations in posture and the size of the ovaries, the ovaries could be damaged or removed.

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 in a hanging position with the tail hanging downward; a cutter that cuts off the head of the fish while it is running in the hanging position;
Do not run while holding the tail of the fish in the hanging position.
A pair of tail clamping belts twisting 0° to tilt the fish body into a horizontal position, a horizontal guide supporting the torso of the fish body that has fallen to the horizontal position, and a pair of tail clamping belts that are installed parallel to the above tail clamping belts and hit the back of the fish body that has fallen to the horizontal position. It has a back support guide and an abdominal pressure device that maintains a predetermined distance from the back support guide and presses the abdomen of the fish, so that the ovaries are removed after the fish head is cut with the fish's ovaries displaced toward the tail. It is characterized by being structured.

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 provided with a packet or a partition plate (not shown) on which the fish body F1 is placed laterally, and the head portion 1a.

It is divided into a body part 1b and a tail part IC (fifth part).
(see figure), between the head part 1a and the torso part 1b,
A gap is provided to accommodate a clamping belt, which will be described later. This conveyor 1 is a horizontal belt stretched by a starting sprocket 2 and a trailing sprocket 3. A clamping heald 5.6 is provided beyond the terminal end of the conveyor 1 for clamping and conveying the gill cover of the fish body. The axes of the starting side sprockets 7, 8 are provided horizontally like the sprockets of the conveyor 1, but the axes of the end side sprockets I-9, 10 are provided vertically,
is twisted by 90 degrees in the first half from the starting end to the middle part, and the direction in which the belt faces the belt in the second half is almost horizontal. As shown in FIG. 2 or 6, the clamping belts 5 and 6 are those in which a pin 9-9 is continuously driven into the center of the belt.

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, tail clamping belts 12 and 13 are provided for clamping and transporting the tail of the cut fish F2. The axes of the starting end sprockets 14.15 of this clamping belt 12.degree. 13 are vertical and the clamping direction is horizontal, while the axes of the trailing end sprockets 16.17 are horizontal. The twisting of this bell) 1'2.13 is performed from the vicinity directly below the cutter 11 to the middle of the forward path, and the clamping direction in the latter half of the forward path is almost vertical. Similarly to the above-mentioned clamping belts 5 and 6, this tail clamping bell) 14, 15 also has a pin 24 continuously driven into the center of the belt.

An egg collecting device 18 is provided in the latter half of the forward path of the tail clamping bell) 12.13. FIG. 3 shows a plan view of the egg collection device 18, and FIG. 4 shows a side view thereof. Bell 1-12.1
Back support guides 19 and 20 are provided along 3, and an egg retrieval frame 21 is supported at both ends at a predetermined distance from the surface thereof. A chute 22 for collecting ovaries is provided below the egg collection frame 21. Further, a horizontal guide 23 is provided at the introduction portion to the egg collection device 18.

Next, the effect will be explained.

First, the fish F1 to be processed is placed on the packet on the conveyor 1 with the belly facing forward and the back facing backward, with the heads aligned. At this time, as shown in FIG. 5, the pectoral fin of the fish is hooked onto the trunk portion 1b.

Next, as shown in FIG. 6, the clamping belt 5.6 clamps the area around the gill cover. When the conveyor 1 eventually disappears, the fish body is held only by the clamping belt 5.degree. 6, as shown in FIG. 7, and as the clamping belt twists, it gradually shifts to a hanging position. When the fish assumes a completely hanging posture, the ovary O■ 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. 8, the root of the pectoral fin is cut off by the cutter 11, and at the same time or immediately before, the tail is held by the tail holding bell 1-12.13.

By this cutting, the head is removed and at the same time the torso is released from the pressing force of the clamping belts 5 and 6, so that the ovary ov protrudes from the cut surface as shown in FIG. Furthermore, the fish body F2 is bent because the tail clamping bells l-12 and l-13 are not completely twisted by 90'. When the fish is completely twisted by 90 degrees, the fish body F is twisted as shown in Figure 10 and Figure 11.
2 rests on the horizontal guide 23 with its abdomen forward, tending to assume a position where the tail is in the lead and the cut surface is in the furthest position. Eventually, when the fish's belly hits the egg collecting frame 21, the fish will move to the back guide 19.2.
0, and as shown in FIG. 12, while the egg retrieval frame 21 further presses the belly of the fish, the pressing portion moves toward the cutting surface due to the running of the belts 12 and 13. Therefore, ovarian OV
is pushed out together with body fluids and falls onto the chute 22.

After collecting the eggs, the fish body F3 is released forward from the end of the tail clamping bell (12.13).

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 drawings]

Fig. 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. 3 is the egg collecting bag ff of Fig. 1.
118 is a plan view, 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 guide 21--Egg collecting frame (egg collecting tool) 23-Horizontal guide

Claims (1)

[Claims] A hanging conveyance device that grips the head of a fish and moves the fish in a hanging position with the tail hanging downward; a cutter that cuts off the head of the fish while it is running in the hanging position; and a cutter that holds the tail of the fish in the hanging position. A pair of tail clamping belts that twist approximately 90 degrees before moving to bring the fish into a horizontal position, a horizontal guide that supports the torso of the fish that has fallen into a horizontal position, and a pair of tail clamping belts that are installed parallel to the tail clamping belts to allow the fish to fall into a horizontal position. It has a back support guide that touches the back of the fish body, and an egg retrieval tool that maintains a predetermined distance from the back support guide and presses the abdomen of the fish. A fish ovary removal device configured to remove an ovary.