JPH04218329A - Apparatus for removing kidney - Google Patents

Abstract

PURPOSE:To enable automation of removal and washing of the kidney in a fish without causing damage to the fish body by dissecting the kidney of the fish with rotation of rotating blades having expansible and contractible tips in the radial direction and removing the kidney with water streams. CONSTITUTION:A fish 42 with the abdominal part up in which the abdomen is incised and the head and viscera are removed is carried along a transportation passage 40 to a position for removing the kidney. In the position for removing the kidney, the fish 42 is sensed with a sensor 44 and stopped. A water discharging means 46 is initially elongated to flow water from a nozzle provided at the tip of the water discharging means 46 into the abdominal part. A device 10 for removing the kidney is then advanced into the abdominal part with a driving unit 48 operated after a prescribed time lag. The edge (14b) of a frame member 14 is subsequently applied to the intraperitoneal wall membrane in the front of the kidney. When the edge (14b) is sensed with the sensor, the fish 42 is moved through a prescribed distance to dissect the intraperitoneal wall membrane with the edge (14b). Blades 12 are then rotated to produce stirring of water. When the tips (12b) collide with the pellicle of the intraperitoneal wall, the pellicle is scraped off with the tips and the kidney is removed by stirring of water.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a fish processing device.
In particular, it relates to a feces removal device.

0002

BACKGROUND OF THE INVENTION Fish is frozen and preserved by removing the head and internal organs, scraping off the kidneys, washing, soaking in water to remove blood, and then freezing.

[0003] As shown in FIGS. 6 and 7, the fish kidney M is located on the back wall of the abdominal cavity N and runs longitudinally along the vertebra O. In particular, the kidneys of salmon and trout are called mefun.

[0004] Kidneys are dark red and perishable.
Even if the fish is frozen, if the kidneys remain,
The color easily transfers to the adjacent flesh and becomes a source of corrosion. For this reason, it is important to completely remove the kidney.

[0005]

[Problem to be solved by the invention] Conventional kidney (mefun)
Since the kidneys are attached to the uneven vertebrae, they are removed by scraping them off with a long, slender rod with a hook-shaped tip and using a stream of water to remove them.

However, scraping with the elongated rod member requires manual labor, and requires removal, cleaning, and cleaning of the head and internal organs of the fish.
There was a problem in that it became an obstacle in trying to automate a series of tasks consisting of blood removal.

[0007] Furthermore, without using the elongated rod member,
Attempting to remove the kidney using just a stream of water would require a high-pressure stream of water, and there is a risk that the adjacent flesh would be peeled off by the water pressure. In particular, there was a problem in that the fish body damage was large, especially for fish with soft flesh such as herring.

[0008] Accordingly, an object of the present invention is to provide an apparatus that can automatically remove fish kidneys without causing damage to the fish body.

[0009]Furthermore, the head and internal organs of the fish are removed, washed,
The purpose is to provide a device that can automatically perform a series of operations consisting of blood removal.

0010

[Means for Solving the Problems] In order to achieve the above object, the fluff removal device of the present invention includes a rotary vane means having a rotary vane, a driving means for rotating the rotary vane, and a dregs removing device along the circumference of the rotary vane. The rotary blade includes a blade means having a cutting edge in the radial direction and a water discharge means for discharging cleaning water, and the rotating blade has a tip portion that is freely expandable and retractable in the radial direction.

[0011] It is desirable that the rotary blade is longer in the radial direction than the cutting edge of the cutting tool means when fully extended in the radial direction.

[0012] Furthermore, it is preferable that the rotary vane means is removable from the drive means.

[0013]

[Operation] When removing fish kidneys (feces) with the feces removal device constructed as described above, the intraperitoneal wall membrane in front of the feces is incised with a knife, and a water stream stirred by a rotating blade is used to remove the kidneys (feces) from a fish. The membrane and the kidney behind it (
Mefun) is removed.

[0014] Fish kidney (mefun) is removed using the above-mentioned mefun removal device.
When removed, the kidneys are detached from the vertebrae and removed by the turbulent flow of water caused by the rotation of the rotary blades without manual intervention. As a result, it becomes possible to automate the removal and cleaning of fish internal organs and the like.

[0015]

[Embodiment] An embodiment of the present invention will be described with reference to the drawings. In the fluff removal device 10 shown in FIG. is attached to the support member 16.

A water discharging member 18 is attached to the support member 16, and a nozzle 18a sprays water onto the blade 12.
It is designed to rotate. The rotational speed of the blades 12 is set so as to generate a water flow that stirs the internal organs and feces of the fish, but does not damage adjacent meat parts.

The size of the blades 12 is made to have a diameter of 3 to 10 cm depending on the shape of the kidneys and vertebrae of the fish to be processed, and is replaceable.

The blade 12 has a root portion 12a and a tip portion 12b.
The tip portion 12b is movable in the radial direction with respect to the root portion 12a. This is, for example, the root part 12
With rattling in the radial direction and escape direction with respect to a,
The tip portion 12b may be attached loosely, and the tip portion 12b of a small piece may be attached to the root portion 12a which occupies most of the blade.
A small hole may be provided at the inner end of the radial tip portion 12b and the root portion 12a may be connected via a long ring. Further, the tip of the tip portion 12b may be formed into a hook shape.

[0019] As a result, the tip portion 12b fully extends in response to the rotation of the blade 12, but if there is anything that obstructs its elongation, it can be easily retracted.

A blade frame 14a is fixed to the frame member 14, and the blades 12 rotate within the blade frame 14. The peripheral edge of the blade frame 14a, that is, the radial tip 14b is a cutting edge. Moreover, the rotating blade is slightly longer in the radial direction than the cutting edge of the cutting tool means when fully extended in the radial direction.

Therefore, when the frame member 14 is pressed against the thin film of the inner wall of the abdominal cavity of the fish, the thin film can be incised with the cutting edge 14b.

When the membrane is incised, the tips 12b of the blades 12 slightly protrude from the blade frame 14a, allowing them to scratch the kidneys attached to the vertebrae. The kidneys are very lightly attached to the vertebrae, so the feather 1
Even if the tip of the second part 12b is only slightly scratched, the rest can be removed by the water flow caused by stirring by the blades 12.

[0023] Furthermore, the entire fluff removal device 10 can be moved forward and backward relative to the fish by a drive device 48 (FIG. 5), and the fluff removal device 10 moves when the blade frame 14a is pushed in the radial direction. , it feels resistance to movement and stops.

In FIG. 2, a blade 22 and a frame member 24 similar to those shown in FIG. 1 are held by a shaft member 26, and the blade 22 can be removably fixed to the shaft member 26 with a bolt-nut type fastener 26a. On the opposite side of the stopper 26a, the shaft member 26
is rotatably fixed to the support member 26b. A drive device 28 is attached to the support member 26b, and the shaft member 26 and the blades 22 can be rotated by an endless belt 28a. Therefore, water is discharged without regard to the rotation of the blades 22.

FIG. 3 shows that a turbine type blade 32 is attached to a rotating shaft 3.
4 and housed in a cage member 36 (shown by phantom lines).

The blade 32 has a whisker piece 32a at the tip in the axial direction.
multiple are installed.

The cage member 36 is appropriately provided with openings (not shown) through which water flows out. The rotating shaft 34 is connected to the support member 3
8 via a support member 38,
It is rotated by a drive device (not shown). In this embodiment as well, water is discharged independently of the rotation of the blades 32, but the rotating shaft 34 is
4 may be provided with a water channel. Further, in this embodiment, the blades 32 extend straight, but the angle of the blades 32 may be changed.

Furthermore, the openings of the cage member 36 may be provided in various directions so that water can flow out of the cage member 36 in multiple directions. This can reduce the impact on the meat of the fish.

The whiskers 32a are used to scrape out the kidneys by rotation, and can take the form of a flexible chain or strip. Note that the cage member 36 may be movable in the axial direction with respect to the rotating shaft 34 so that the blades 32 can be exposed.

FIG. 4 shows a modification of FIG. 3, in which a large number of whiskers 32a are attached to the enlarged portion 34a of the rotating shaft 34 without using the blades 32.

The cage member 36 has a cutter 36a at its tip.
is attached so that the direction of the cutting edge of the blade 36a can be changed. This is to enable the cutter 36a to perform an incision along the peritoneal wall membrane of the fish, regardless of the angular relationship between the fish and the cage member 36.

An example of the use of the fluff removal apparatus of FIG. 1 will now be described.

As shown in FIG. 5, a fish 42 whose abdomen has been opened and whose head and internal organs have been removed is transported with its abdomen facing up along a transportation path 40 to a feces removal position.

At the feces removal position, the sensor 44 detects the fish 42.
is detected and the fish 42 is stopped. In this position, the fish 42
Inside, some of the internal organs and kidneys remain.

When the fish 42 stop, the water discharging means 46 is first
extends, and water flows into the abdomen from a nozzle provided at the tip of the water discharge means 46. The feces removal device 10 is advanced into the abdomen by the drive device 48 which operates with a certain time delay,
The cutting edge 14b is applied to the abdominal wall membrane on the front surface of the meal. When the sensor detects that the blade edge 14b has hit the abdominal cavity lining membrane, the fish 42 is moved a predetermined distance and the peritoneal cavity lining membrane is incised with the blade edge 14b. Thereafter, the blades 12 are rotated to create agitation of the water. When the tip 12b of the blade 12 hits the thin film on the inner wall of the abdominal cavity, the tip scrapes off the thin film and removes the feces by stirring the water. Move the fish 42 back and forth to remove the entire mefun. After a predetermined period of time has elapsed, the feces removal device 10 is moved back, and the fish moves on to the next process.

FIG. 6 shows the case of a fish 42 that has not been dissected. The fish 42 from which the head and viscera have been removed is transported along the transport path 40 to the feces removal position with the head side facing the lateral direction of the transport path 40.

At the feces removal position, the sensor 44 detects the fish 42.
is detected and the fish 42 is stopped.

[0038] When the fish 42 stops, the water discharging means 46 is first
extends, and water flows into the abdomen from a nozzle provided at the tip of the water discharge means 46.

The feces removal device 10 is advanced into the abdomen by the drive device 48 which operates with a certain time delay, and the cutting edge 14 is moved forward into the abdomen.
Insect the peritoneal wall membrane by sliding it along the peritoneal wall membrane on the front surface of the membrane. After the fluff removing device 10 has moved a certain distance, the blades 12 are rotated to stir the water. When the tip 12b of the blade 12 hits the thin film on the inner wall of the abdominal cavity, the tip scrapes off the thin film and removes the feces by stirring the water. The feces removing device 10 is moved back and forth to remove the entire feces. After a predetermined period of time has elapsed, the feces removal device 10 is moved back, and the fish moves on to the next process.

[0040] In some fish, the intraperitoneal wall membrane is extremely weak and can be torn by just contact with the tip of the blade 12b without using a knife. In this case, no knife is required.

[0041]

[Effects of the Invention] Since the present invention is configured as explained above, kidney surgery, which was conventionally done manually,
This has the effect of making it possible to automate scraping.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a feces removal device according to an embodiment of the present invention.

FIG. 2 is a plan view of a feces removal device according to another embodiment of the present invention.

FIG. 3 is a perspective view of a feces removal device according to another embodiment of the present invention.

FIG. 4 is a perspective view of a feces removal device according to another embodiment of the present invention.

FIG. 5 is a plan view showing a schematic configuration and arrangement of an embodiment using the fluff removal device of FIG. 1;

FIG. 6 is a plan view showing a schematic configuration and arrangement of another embodiment using the fluff removal device of FIG. 1;

FIG. 7 is a schematic side view showing a fish kidney.

FIG. 8 is a schematic cross-sectional view showing a fish kidney.

[Explanation of symbols]

10 Mefeo removal device 12 Feather 14 Frame member 16 Support member 18 Water discharge member 26 Shaft member 26a Stopper 26b Support member 28 Drive device 28a Endless belt 34 Rotation axis 36 Cage parts 36a Opening 38 Support member 40 Transport road 42 Fish 44 Sensor 46 Water discharge means 48 Drive device M Kidney (mefun) N. Abdominal cavity O Vertebrae

Claims (1)

[Claims] Claim 1: A rotary vane means having a rotary vane, a driving means for rotating the rotary vane, a blade means having a cutting edge oriented in a radial direction along the circumference of the rotary vane, and a water spraying means for discharging cleaning water. , a fluff removal device characterized in that the rotary blade has a tip portion that is expandable and retractable in the radial direction.