JP2000157223A - Automatic separation of fish roe and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for automatically separating fish roes, capable of preventing the contamination by various germs, improving the efficiency of the work, unnecessitating conventional installations, uniforming the qualities of the separated fish roes, producing the good product free from the damage of the fish roe granules, and giving a large economical effect, and to provide a device therefor. SOLUTION: This method for automatically separating fish roes comprises loading the fish roes semi-covered with an ovarian skin on a shaken net 7 so that the fish roes and the ovarian skin are placed on the side of the net and on the upper side, respectively, pressing the fish roes semi-covered with the ovarian skin by the use of a press device 20 equipped with a press material, and shaking elastic members for scraping the fish roe granules 25 transferred to the lower side of the net 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for automatically separating fish eggs wrapped in the epidermis into epidermis and fish eggs.

[0002]

2. Description of the Related Art Among fish eggs, one of the so-called high-grade fish eggs is salmon eggs, or salmon roe. Conventionally, in order to separate the fish egg from the epidermis, the fish egg with the epidermis is placed on a mesh having an appropriate size, and is manually performed by hand fir. The work requires considerable skill. Furthermore, in the case of hand fir, a part of the epidermis inevitably mixes with the fish egg separated through the mesh.

[0003] For this purpose, it is necessary to remove the contaminated epidermis from the fish eggs. For the separation, a large amount of water is consumed in a water tank type tank of about 350 liters to about 540 liters, which is called a stirrer, while stirring. We are working to separate the epidermis and fish eggs. As other examples, JP-A-7-274910 and JP-A-9-65859 are disclosed.

[0004]

However, in the conventional hand-fed type, the mesh table is open in the room, and the germs may be inadvertently disturbed by workers themselves or scattered by other workers, or may float in the room. It has been difficult to prevent contamination of various bacteria and the like. In addition, it is a manual operation while applying moderate pressure so that fish eggs that require the skill of the worker are not crushed and the skin and fish eggs are easily separated, and this work is continued for a long time. It is extremely difficult to do so.
The work that I was doing carefully at the beginning of the work, although taking a break, is near the limit of physical strength over a long period of time throughout the day,
Work tends to be complicated. In addition, it is very difficult to eliminate uniform products due to individual differences.
In addition, since it is a hand-fir operation, it is necessary to knead the surface of the skin to separate the fish eggs. There is a disadvantage that a water tank type stirrer using a large amount of water is required for the separation.

[0005] Furthermore, Japanese Patent Application Laid-Open No. Hei 7-274910 discloses a technique in which a vibration is applied to a belt-like contact to apply an appropriate pressing force to the upper surface of an opened fish egg, and the fish is moved in a parallel manner. It is a method and device to cut and separate the streak-like part connecting the egg and the epidermis.To use this method and device, apply a moderate soft force to the fish egg and damage it. Separation work is performed for each layer in such a manner as not to be performed. However, even if it is a moderately soft force, skill is required for individual differences and its applied power, not only can not produce a uniform product, but also unnecessary quality of fish eggs will cause deterioration in quality. . Japanese Unexamined Patent Publication No. Hei 7-274910 discloses a method in which a protease is added to a 1% saline solution tank, dissolved, and the fish egg grains are reliably separated in 5 to 11 minutes, and the protein is attached to the fish egg. Although the enzyme is washed and removed, the proteolytic enzyme that once adheres to the fish egg causes a change in the fish egg, which leads to a decrease in quality. The present invention solves the above-mentioned conventional fish egg separation means, in which the invention is invented and the fish egg with the skin is fixed at a fixed position, and the fish egg and the skin are separated on the mesh while applying a constant pressure. The present invention has been developed for the purpose of providing a method and an apparatus for uniformly separating bacteria by preventing separation of various bacteria by automatic separation without changing hands.

[0006]

According to the first aspect of the present invention, there is provided a method comprising:
The method is characterized in that the skin of the fish egg is partially opened, the fish egg is pressed from the upper surface of the skin, and then the net located under the fish egg is rocked to automatically separate the fish egg. Further, the method of claim 2 partially opens the epidermis of the fish egg, presses the fish egg from the upper surface of the epidermis, and then swings the net located at the lower part of the fish egg, and sandwiches the net with the fish egg. A fish egg is automatically separated by operating an oscillating elastic body on the lower surface on the opposite side. An automatic egg separating apparatus according to claim 3 is characterized in that a frame provided with a net is connected to the swinging device, and a pressing device for pressing the skin surface of the fish egg is provided on the upper surface side of the net. . Further, in the apparatus according to claim 4, a frame provided with a net is connected to the swinging device, and a pressing device for pressing the skin surface of the fish egg is provided on the upper surface side of the net, and the lower surface on the opposite side sandwiching the net Has an elastic body that scrapes fish egg grains,
A member for supporting the elastic body from below is provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A pressing device is opened to open a fish egg wrapped in an epidermis to a half-open position, and the fish egg is set on a swinging net with the epidermis facing upward. When a net is rocked while applying a pressure by a pressing device provided with a pressing material including the following, fish eggs are sequentially separated from the mesh of the net and fall naturally. However, if it is only repeated as it is, the fish egg at the last stage of the epidermis and the fish egg does not separate naturally,
In this last step, the elastic body for scraping the fish eggs from the other side across the net acts to scrape the fish eggs without leaving the last grain, leaving only the epidermis on the net It is.
Moreover, there is no damage to the separated fish eggs. Furthermore, when setting a fish egg with a halved skin on the net,
By setting the direction substantially perpendicular to the swinging direction of the net, the separating effect can be further enhanced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of the automatic separation device according to the embodiment as viewed from the side. The entire apparatus 10 of the present invention is divided into a separation device main body 1 and a driving device 2 for the separation device, and the space between them is connected by each connecting tool. In FIGS. 1 and 2, guide rails 3 for swinging the net 7 are provided on the separation device main body 1.
The net 7 is tensioned by a frame 6 provided with a swinging roller 8, and the frame 6 is connected to a lever 34 provided with a connecting pin 35 for swinging drive. On the upper surface of the separation device main body 1, a fish egg A with a skin that has been opened in half is set on a net 7 with the skin up, and then an openable and closable pressing device including a pressing body 22 that presses the skin surface A pressure 20 is provided.

The fish egg A with a half-open skin is wrapped between the net 7 and the pressing body 22 so that the fish egg A with the skin does not move together with the net 7 even when the net 7 swings. The pressing device 20 is intended to stay there. Pressing device 2
0, the pin 4 is located at the center of the seat 21 of the pressing body 22.
5, a spring 47, and a nut 47 are provided so that the pressing body 22 can be adjusted so as to easily contain the fish egg A,
It is provided. And it is provided on the seat 21 so that it can be easily replaced when the pressing body 22 is worn. Next, as the net 7 swings, the fish eggs become granular on the lower surface of the net 7 and fall naturally. However, in some cases, the skin 26 or the streaks 23 are stuck and do not fall. Therefore, in order to scrape off the fish eggs suspended on the lower surface of the net 7, a plurality of elastic bodies 17 shown in FIGS. 1 and 3 are configured. The elastic body referred to here may be, for example, a thin rod, string or thread made of an elastic body made of plastic, rubber, spring or the like.

[0010] A plurality of elastic members 17 are provided on a scraping frame provided with a roller 19. The scraping device 11 is mounted on a rail 4 provided on the separation device body 1 by a frame 1.
3 is connected to a lever 43 provided with a connecting pin 44 for driving so as to be swung by a roller 19 provided. The scraping device 11 is provided with a pin 27 at the center of the link 15 so that the plurality of elastic members are always in horizontal contact with the mesh 7 of the swinging frame 6 and is operated up and down to support the elastic members 17 from below. A receiving member 14 and a frame 13 are provided, and a spring 16 is interposed therebetween. Adjustment of this spring 16 is performed by screw 2
Adjust with 8. The supporting member 14 includes a plurality of elastic bodies 1.
7 is pushed up from below while maintaining a constant pressure. As shown in FIG. 4, the plurality of elastic bodies 17 may not fall naturally under the condition that the fish egg grains 25 are simply suspended from the mesh 8 of the mesh 7 by the skin or the streak under the mesh 7.
This phenomenon does not spontaneously fall, especially in the last stage of the egg 25. The plurality of elastic bodies 17 drop the fish egg grains 25.

As shown in FIG. 5, when the plurality of elastic bodies 17 swing, the skin 26 or the streak 23 connected to the fish egg 25 is cut, and the fish egg 25 is separated and falls. Since the plurality of elastic bodies 17 have a property of a free elastic body as shown by a phantom line 18 shown in FIG. There is nothing to do. Therefore, only the skin of the fish egg remains on the net 7 in a flat state. The fallen fish eggs 25 may be placed under the receiving pad 24 under the separation device main body 25, or a plurality of the present devices may be arranged in mass production and a conveyor may be provided in a space corresponding to the position of the pad 24 to be accumulated. .

Next, as shown in FIGS. 1 and 2, the drive unit 2 has a pinion gear 31 mounted on a shaft 29 of a drive motor 30 and a gear 32 meshing with the pinion gear 31 is supported by bearings 36, 36. Gear attached to the supported shaft 39
The pin 32 is attached to the mesh 7 and a pin 33 is attached to the other end of the lever 34. The pin 33 is assembled at an eccentric position from the axis of the gear 32 to swing the mesh 7. When the scraping device swings, a gear 41 meshed with a pinion gear 40 mounted on a shaft 39 includes a shaft 38 supported by bearings 45 and 45.
The connecting pin 42 provided at the other end of the swing lever 43 connected by the pin 44 of the frame 13 and swinging, can be swung by being connected to an eccentric position from the axis of the gear 41. I can do it. The drive device 2 is configured as described above, but is not limited thereto, and can be arbitrarily changed.

[0013]

As described above, according to the present invention, the fish egg covered with the epidermis of the raw material is opened to the half body, so that the fish egg grains are on the net side, and the epidermis is on the opposite side of the net. And put it on. Then, the skin surface is a holding device that has flexibility and a certain amount of frictional force. Since there is no need for human intervention, there is no need to worry about contamination of various bacteria, and the fish egg grains can be uniformly separated at any time, and a good grain product without damage can be obtained. Moreover, since the epidermis does not mix into the fish egg grains, not only is there no need for a conventional separation and stirring device for removing the epidermis, but also a large amount of water is not used for the separation work,
It has a significant economic effect. With this device, you only need to set the raw fish eggs, and then you only have to take out the fish egg grains and the epidermis when the separation is completed. Is possible.
In addition, the degree of work fatigue can be reduced as much as possible without requiring the skill of the operator, which is useful for improving work efficiency in many cases.

[Brief description of the drawings]

FIG. 1 is a front sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 is a sectional view taken along line CC of FIG. 1;

FIG. 4 is a sectional view taken along line DD of FIG. 3;

FIG. 5 is a sectional view taken along the line EE in FIG. 3;

[Brief description of reference numerals]

1 ・ ・ ・ Separation device body 3 ・ ・ ・ Guide rail
2 ... Drive device 4 ... Guide rail
Le 6 ... frame 17 ... elastic body 7 ... net 18 ... showing the movement of the elastic body 8 ... mesh 19 ... roller 9 ... roller DESCRIPTION OF SYMBOLS 20 ... Pressing device 10 ... This device 22 ... Pressing body 11 ... Scraping device 23 ... Streak 13 ... Frame 25 ... Fish egg 14 ... Member 26 ...・ Skin 15 ・ ・ ・ Link A ・ ・ ・ Segmented fish egg 16 ・ ・ ・ Spring

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kiyohiro Kobayashi 4--13, Uenocho, Hakodate-shi, Hokkaido (72) Inventor Tsunehiko Araki 4-29-3, Edaminami, Tsuzuki-ku, Yokohama-shi, Kanagawa F-term (reference) 4B042 AC09 AD40 AE02 AG16 AH09 AP06 AP30 AT05

Claims (4)

[Claims] 1. A method for automatically separating fish eggs by partially opening the skin of the fish eggs, pressing the fish eggs from the upper surface of the skin, and then rocking a net located at the lower part of the fish eggs. 2. A part of the skin of the fish egg is opened, the fish egg is pressed from the upper surface of the skin, and then the net located at the lower part of the fish egg is rocked, and the net opposite to the fish egg is sandwiched between the nets. A method of automatically separating fish eggs by operating an elastic body that swings on the lower surface. 3. An automatic fish egg separating apparatus, wherein a frame provided with a net is connected to the swinging device, and a pressing device for pressing the skin surface of the fish egg is provided on the upper surface side of the net. 4. A frame provided with a net is connected to the swinging device, and a pressing device is provided on the upper surface side of the net for pressing the skin surface of the fish egg.
An automatic fish egg separating apparatus, comprising: an elastic body that scrapes off fish egg grains on the lower surface opposite to the net, and a member that supports the elastic body from below is provided.