JPH0339651B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for removing the ovaries of fish.

Prior art Typical prior art (Japanese Patent Application Laid-Open No. 60-98937,
59-227237) transports the fish using a conveyor belt, cuts off the head of the fish during the transport, and presses the abdomen of the fish with the head cut off using a pressing member. The device is configured to remove the ovary.

Problems to be Solved by the Invention The above-mentioned pressing member is attached in the shape of a round bar or roller. Therefore, it has not been possible to remove the ovary without damaging it, depending on the size of the fish body or the variation in posture.

Further, the ovary and part of the internal organs adhered to the surface of the pressing member, resulting in damage to the ovary in some cases.

The object of the present invention is to solve the above-mentioned problems, and to provide an egg collection device that can smoothly and reliably extract the ovary without damaging the fish, regardless of its size, thereby improving egg collection efficiency. The goal is to provide the following.

Means for Solving the Problems The present invention provides a pair of transport means for transporting a decapitated fish body by holding both sides thereof, and a pair of transport means for transporting the fish body with its head cut off, and a pair of transport means provided in the middle of the transport route for the fish body, and perpendicular to the transport route. The egg collection device includes an abdominal pressing member which has a vertical axis of rotation, is elastically angularly displaceable and freely rotatable on the abdomen of the fish, and the abdominal pressing member is arranged so that the abdominal pressing member has a vertical axis of rotation. This egg retrieval device is characterized by forming a receiving surface for holding the abdomen of the egg.

Effects According to the present invention, the abdomen of the fish whose head has been cut off is pressed by the abdomen pressing member, and the abdomen of the fish is held on the receiving surface of the abdomen pressing member, thereby ensuring that the fish does not twist. The ovaries in the abdominal cavity are compressed. When the abdomen of the fish is pressed by the abdominal pressing member, the ovary and part of the internal organs adhere to the surface of the pressing member, but the pressing member rotates freely as the fish passes by, thereby preventing the adhesion. Part of the ovaries and internal organs that have been removed are shaken off, and the surface of the pressing member is not soiled. In addition, a part of the ovary taken out from the abdominal cavity of the fish does not stick to the fish, thereby preventing damage to the ovary during egg collection and improving egg collection efficiency.

Embodiment 1 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 thereof. The egg collecting device 1 includes a pair of starting end pulleys 2a and 2b that are driven to rotate in the direction of the arrow around a horizontal rotation axis.
A pair of conveyor belts 4a, 4b is stretched between the start end pulleys 2a, 2b, and the terminal end pulleys 3a, 3b, which are rotationally driven by the start end pulleys 2a, 2b. The structure is such that the fish body F is held between the two and transported in the transport direction A. Further, on the side where the clamping surfaces 5a, 5b of the conveyor belts 4a, 4b are close to each other and face each other, and behind the conveyor belts 4a, 4b, a plurality of pairs of rollers 6a, 6b; 7a, 7b; 8a, 8b is provided. Each of these rollers 6a, 6b; 7
a, 7b; 8a, 8b have springs 9a, 8b, respectively;
9b and 9c are attached and elastically biased in a direction toward each other. This prevents the conveyor belts 4a, 4b from sagging. A rotating round blade 10 for cutting the head of the fish F is provided near the downstream side of the start end pulleys 2a and 2b in the conveying direction A, and a rotary round blade 10 for cutting the head of the fish F is provided around the horizontal axis by a drive motor (not shown). Rotationally driven. A feed belt 11 for holding the head of the fish F hanging downward is provided near the downstream side of the rotary round blade 10 for head cutting. This feed belt 11 includes a pulley 12a that is rotationally driven around a horizontal axis, and a pulley 1 that is driven by this pulley 12a.
2b and is driven in the direction of arrow B. A pulley 12c for preventing the feed belt 11 from drooping is provided between the pulleys 12a and 12b. A driving means 1 is provided near the downstream side of the pulley 12b.
A rotary member 14a is provided which is driven to rotate in the direction of arrow C around a vertical axis by a rotary member 14a, which comes into contact with the abdomen of the transported fish F to remove the ovary.

Note that the pulleys 2a, 2b, 3a, and 3b are used as subrocket wheels, and the conveyor belts 4a,
4b may be used as a conveyance chain, and the fish body F may be held and conveyed by the chain drive.

As shown in FIGS. 3 and 4, the rotating member 14a has a through hole 14e, has a generally right cylindrical shape, and has a stepped portion near one end.
It has a receiving surface 14c that holds the abdomen of the fish F. The rotating shaft 14b is inserted into the through hole 14e of the rotating member 14a. The base end of the rotating shaft 14b is fixed so that its axis is the same as the axis of the pulley 15a, and the free end is provided with a retaining portion 14d for the rotating member 14a. Through hole 1 of rotating member 14a
There is a gap between the inner circumferential surface of the rotating member 4e and the outer circumferential surface of the rotating shaft 14b, so that the rotating member 14a can freely rotate with respect to the rotating shaft 14b.

In addition, in the rotating member 14a, the receiving surface 14c is formed on the step near one end to hold the abdomen of the fish body, but it is also possible to form the step on the rotating member as shown in FIG. Alternatively, a concave groove 14f may be formed on the circumferential surface of the rotating member 14al to hold the abdomen of the fish body and push out the ovaries Fa and Fb.

The pulley 15a is fixed to the shaft 16a, and
a is pivotally supported by a bearing 17a. This bearing 1
7a is connected to the bearing 17b via a connecting member 18. A shaft 16b is supported by the bearing 17b,
A pulley 15b is fixed to the lower end of the shaft 16b. Further, the upper end of this shaft 16b is connected to a drive motor (not shown), and is driven to rotate in the direction of arrow C1. A belt 1 is attached to the pulleys 15a and 15b.
9 is stretched and the pulley 15b is driven to rotate in the direction of arrow C1, the rotation is transmitted through the belt 19, and the pulley 15a is driven to rotate in the same direction as the direction of arrow C1. As a result, the rotating shaft 14
b is rotationally driven in the direction of arrow C.

A guide rod 20 is provided to protrude from the connecting member 18 . The guide rod 20 is inserted through a through hole 21 formed in a blocking piece 22 fixed at a fixed position, and a contact piece 23 is formed at the end thereof. The rotating member 14a has a shaft 1
A configuration capable of angular displacement over a range of a first position P1, where the blocking piece 22 abuts on one side of the connecting member 18, and a second position P2, where the abutting piece 23 abuts the blocking piece 22, centering on the connecting member 6b. It is becoming. Further, a spring 24 having one end fixed is attached to the bearing 17a, thereby fixing the shaft 1 at a fixed position.
6b as the center of rotation, the rotating member 14a rotates in the direction of arrow D.
is elastically biased in the direction. As a result, in a state where the connecting member 18 is in contact with the blocking piece 22, the arrow D
Since the angular displacement in the direction is prevented, the rotating member 14a
can be prevented from stopping near the conveyor belts 4a, 4b and coming into contact with the conveyor belts. Also,
When the fish F passes by, it can be angularly displaced within the range of the first position P1 and the second position P2, so it is possible to press the abdomen regardless of the size of the fish.

The egg collection processing operation of the egg collection device 1 having the above-described configuration will be described with reference to FIGS. 1 to 4. Fish body F is placed on the conveyor belts 4a and 4b from the starting end side.
is placed with its abdomen facing downstream in the transport direction A. The introduced fish F is conveyed with its both sides held between the holding surfaces 5a and 5b, and its head is cut off by the rotary round blade 10 for head cutting.
The cut fish body F is further conveyed, and the lower side part Fc near the cut part is attached to the feed belt 1.
1, thereby maintaining the end of the fish F on the cut side side in a horizontal state without hanging down, and transporting it to the vicinity of the rotating member 14a, so that the abdomen is attached to the receiving surface 14c of the rotating member 14a. comes into contact. At this time, since the rotating member 14a is elastically urged in the direction of arrow D by the spring force of the spring 24, the abdomen of the fish F is held in tight contact with the receiving surface 14c. . In this state, the fish F is transported in the transport direction A by the transport belts 4a and 4b. The ovaries Fa, Fb that come into contact with the rotating member 14a and are pushed out are supported by the receiving surface 14c and are not crushed, and the ovaries Fa, Fb and part of the internal organs are kept on the surface of the rotating member 14a. It does not stick easily and allows for smooth egg collection. Furthermore, if an undesirably large force is applied to the fish body F during egg collection, the rotating member 14a may
Since it can rotate freely relative to 4b, the force applied to the fish body F can be alleviated, and therefore the ovary
Damage to Fa and Fb is prevented, and egg collection efficiency is improved. After the fish body F has passed, the rotating member 14a rotates freely, and the ovaries Fa, Fb or part of the internal organs attached to the surface of the rotating member 14a are shaken off, and the ovaries Fa, Fb or internal organs are attached to the surface of the rotating member 14a. Part of the fish body F does not stick to the fish body F, and eggs can be collected successfully from the fish body F to be transported next.

Furthermore, the rotating shaft 14b is connected to pulleys 15a, 1
5b and the belt 19, however, only the rotating member 14a may be allowed to freely rotate while the drive of these members is stopped without being forced to rotate. In this case as well, as described above, the rotating member 14
The ovaries Fa, Fb or part of the internal organs attached to the surface of the rotating member 14a are shaken off, and the ovaries are deposited on the surface of the rotating member
Fa, Fb, or part of the internal organs do not adhere, and the eggs of the fish F to be transported next can be collected successfully.

Further, since the rotating member 14a is configured to be able to move toward and away from the fish F around the shaft 16b, the ovaries Fa and Fb can be reliably removed regardless of the size of the fish F.

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 body F is transported by the conveyor belt 4a,
4b, and subsequent processing, such as three-piece cutting processing, is carried out.

Effects As described above, according to the present invention, the abdomen pressing member, which has a receiving surface that holds the abdomen of the fish body and is freely rotatable, is configured to be elastically angularly displaceable to the abdomen of the fish body. Regardless of the size of the fish, it is possible to reliably hold the abdomen of the fish on the receiving surface and push out the ovary, support the extruded ovary on the receiving surface, and take it out smoothly without damaging it. Even if undesired pressure is exerted on the fish due to the transport speed, the freely rotatable pressing member contacts the abdomen of the fish with an angular displacement, so the contact pressure can be alleviated, regardless of the size of the fish or the transport speed. Eggs can be collected without damaging the ovary.

[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 of the vicinity of the rotating member 14a, and FIG. 4 is a diagram of the vicinity of the rotating member 14a. FIG. 5 is a cross-sectional view of the rotating member 14al. 1...Egg collection device, 2a, 2b...Starting end side pulley, 3a, 3b...Terminal end side pulley, 4a, 4b...
...Conveyor belt, 5a, 5b...Pinching surface, 13...
Drive means, 14a...rotating member, F...fish body,
Fa, Fb...ovary.

Claims (1)

[Scope of Claims] 1. An integrated conveyance means that grips and conveys both sides of a fish body whose head has been cut off, and is provided in the middle of a conveyance path for the fish body and has a rotation axis perpendicular to the conveyance path. and an abdominal pressing member that is elastically angularly displaceable and freely rotatable on the abdomen of the fish, the abdominal pressing member holding the abdomen of the fish on the vertical axis of rotation. An egg collecting device characterized by forming a receiving surface.