JPH0343040A - Method for removing internal organ of fish body and device therefor - Google Patents

Abstract

PURPOSE:To remove the internal organ in excellent treating ability by projecting a fish between spaces divided perpendicularly to the forward direction from end edge of the head, cutting and removing the head and then jetting a high pressure water from the anus to squeeze the internal organs. CONSTITUTION:A fish is fed to a conveyer 1 in which dividing part 1a is provided perpendicularly to the forward direction with a prescribed interval while turning the abdomen of fish body 13 in the advanced direction and projecting the head part 13a of the fish body 13 from the end part of a conveyer and the head part 13 is cut and removed with a cutter rotating and driving. Then the fish body 13 is pressed by a pressing plate 5 and a high pressure water jetting nozzle 4 is inserted into the anus of the fish body 13 and the internal organs are squeezed out by the jetting water current, preferably having 25-35kgf/ cm<2> pressure and 70-120l/min flow rate to treat the fish body.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for preparing a fish body such as a walleye cod in a state in which the fish body is not bent as a pretreatment for supplying the fish meat to a processing step for collecting the fish meat as a raw material for a pickle valve. The present invention relates to a method and apparatus for decapitating the head and removing internal organs.

[Conventional technology]

In order to supply the fish meat from caught fish such as walleye cod to the processing process to collect it as raw material for suri valves,
First, the caught fish body is processed into a state in which the head is removed and the internal organs are removed. B) A-A line end view, (B) B-B line end view, (C) C-
As shown in the end view on line C, a device 1 for removing bone parts such as skeletons
2 (hereinafter simply referred to as a bone removal device), the fish is processed into fish meat from which the main bones have been removed. The bone removal device 12 transports the fish body whose head has been removed and internal organs removed, with the abdomen facing down and both left and right sides being held between belts 12a, and cuts the abdomen open with an abdominal incision cutter 12b. 8(a)], the ribs are cut and removed using bone removal cutters 12c installed below both the left and right sides and driven to rotate [see FIG. 8(b)]. The bone removal cutter 12d, which is rotationally driven, cuts and removes the canal [see FIG. 8(c)].

Therefore, the bone removal device 12 must hold the fish body in a state parallel to the direction in which the skeleton is transported.

Traditionally, bone removal equipment like this! ! The removal of the viscera from the fish supplied to the market was done manually, especially in the case of walleye cod, because there is expensive cod roe next to the viscera, but in recent years, for example, -26
A device such as No. 257 "Cod Roe Collection Device" which mechanically removes the head and then extracts the cod roe along with the internal organs from the abdomen of the fish body was developed, reducing labor costs and processing time. .

However, this cod roe collecting device uses a transfer device consisting of a transfer belt and a transfer chain to clamp the rear part of the body and the tail of the fish, cut off the head, and then press the abdominal cavity. This device is used to squeeze out the internal organs and cod roe, and since this device is primarily intended for collecting cod roe and not for collecting fish meat, the abdominal cavity is compressed with this device, and the internal organs and cod roe are squeezed out together with the cod roe. There is a drawback that a moment acts on the fish body, which is held in place, around the pinched portion, causing the fish body to bend. In other words, when the fish body is bent in this way, it may not be possible to clamp the fish body even if the fish body is fed as is to the above-mentioned bone removal device 12, and even if the fish body can be clamped, the transport direction of the medullary bone and the fish body may not be the same. Since the fish body is not parallel, it causes problems such as marrow bones remaining in the fish body, so in order to return the bent fish body to its original unbent shape, it is necessary to use manual labor or a fairly large-scale device, and as a result, the fish meat is sent to the Surino River. It was not possible to supply the fish directly to the processing process to collect it as raw material.

This drawback means that the bone removing device 12 cannot be placed consecutively to this cod roe collecting device, so there is no place to correct the bending of the fish body before the bone removing device 12. This is a major obstacle to installing such equipment on board a ship, where there is only a relatively narrow space to immediately process the caught fish, limiting processing capacity, and this problem is especially noticeable when the catch is high. It appeared in

[Problem to be solved by the invention]

The present invention solves the above-mentioned drawbacks of the prior art, and the fish body does not bend when the head of the fish body is cut off and the internal organs are squeezed out. The object of the present invention is to provide a method and apparatus for removing fish viscera, which can be supplied to a processing process for collecting fish meat as a raw material and can improve processing capacity.

[Means to solve the problem]

As a result of intensive research to solve the above-mentioned problems, the inventors of the present invention found that in conventional devices, the transfer device for transferring the fish to the position where the internal organs of the fish are squeezed only clamps the rear part of the fish body and the tail. Therefore, when the member that squeezes out the internal organs presses and slides on the abdomen, a force is applied to the abdomen of the fish in the opposite direction to the direction of movement, and a moment acts around the rear part and tail of the fish's body that are being held, causing the fish to collapse. Because the fish is bent, instead of hanging the fish, the fish is placed on a conveyor, and when squeezing out the internal organs, the inside of the fish's back is pressed against the conveyor by a pressure plate by the action of a spring. By placing the dorsal side of the cut surface of the fish's head in contact with a fixed guide plate, it is possible to squeeze out the internal organs without bending the fish body. They completed the present invention by discovering that water, which exists inexhaustibly, can be pressurized and injected into the area where the fish were caught.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method and apparatus for removing viscera from fish according to the present invention will be explained in detail below with reference to the drawings.

FIG. 1 is a plan view showing the main parts of an embodiment of the apparatus for carrying out the fish viscera removal method according to the present invention, FIG. 2 is a perspective view showing the main parts of FIG. 1, and FIG. 4 is an explanatory plan view of the main part showing a state in which the head of the fish body is removed; FIG. 4 is a front view showing the main part in a state in which the internal organs of the fish body are removed in FIG. 1; FIG.

(B) and (C) are respectively enlarged perspective views showing the process of removing the internal organs of a fish body, and FIG. 6 is a front view showing the shape of the fish body from which the internal organs are removed.

In the drawings, l is a conveyor that rotates in a constant direction at a predetermined speed, and has a large number of compartments 1a divided at predetermined intervals in a direction substantially perpendicular to the direction of travel. This conveyor 1
As shown in FIGS. 5 and 2, the compartment 1a has a substantially U-shaped cross section with the side wall in the direction of travel inclined upward, and the abdomen 13b of the fish body 13 is located in the compartment 1a. By being supported by the inner wall on the opposite side in the direction of travel, the abdomen 13b is preferably always located at a fixed position within the conveyor 1 without moving up or down or rotating. 2 is a fish 1 that is fed into the compartment 1a of the conveyor 1 with its abdomen 13b facing the direction of travel and its head 13a protruding.
This head transfer conveyor is located on the side of the conveyor l in order to place the heads 13a of the heads 13a of No. 3, and rotates parallel to the traveling direction of the conveyor l at the same speed. It is preferable that the structure is linked to the rotating shaft of the conveyor 1.

Since the head 13a of the fish 13 is removed during transport, this head transfer conveyor 2 must be installed at least between the position where the fish 13 is supplied and the position where the head 13a of the fish 13 is removed. Good. 3 is the conveyor l
This is a cutter that is rotationally driven at the edge position of the cutter 3.
In order to prevent the fish 13 from moving due to the force exerted by the holder 7, the holder 7 is required to hold the fish 13 whose head 13a is removed. This holder 7 is the conveyor 1
Therefore, as shown in an example in FIG. It is preferable to use a structure that is pressed by action. Reference numeral 4 denotes a high-pressure water jet nozzle for squeezing out the internal organs by jetting high-pressure water from the anus 13a toward the head cut surface 13g onto the abdomen 13b of the fish body 13 whose head 13a has been removed by the cutter 3. The high-pressure water jet nozzle 4 preferably has a flat cross-sectional shape at its tip, and is placed close to the anus 13e of the fish 13 on the conveyor 1 on the fish placement surface of the conveyor 1. The pressure is 25 to 35 kgf when installed at an angle of 10 to 20 degrees above the
It is preferable to inject high pressure water of /aJ at a flow rate of 70 to 12042 /win.

This is because if the pressure is less than 25kgf/ff1 or the flow rate is less than 70fl/ff1in, the internal organs may not be squeezed out completely due to lack of energy.
Also, if the pressure exceeds 35 kgf/(d) or the flow rate exceeds 1200
/win, it may squeeze out not only the internal organs but also the fish meat, damage the fish skin, and destroy the ovaries, which are part of the internal organs. A water injection nozzle 4 whose tip has a flat cross-sectional shape is placed at a position close to the anus 13e of the fish 13 on the conveyor 1 at an angle of 10 to 20 degrees with respect to the fish placement surface of the conveyor 1. A good internal organ removal effect has been confirmed when installed and used diagonally upward.

Reference numeral 5 denotes a pressing plate which presses the back meat part 13b of the fish body 13 from which the head 13a has been removed onto the conveyor 1 by the action of the spring 11. 6 is the cut surface 13 of the head of the fish body 13 that is being pressed by the pressing plate 5. This is a fixed guide plate that is fixedly installed at a position where it abuts, and directs high-pressure water from the high-pressure water jet nozzle 4 onto the abdomen 13b of the fish body 13 into the anus 13e.
Pressure plate 5 when injected toward the head cut surface 13g
This is fixedly installed in order to reliably prevent the fish body 13 being pressed by the conveyor 1 from protruding or falling off the conveyor 1, and the high-pressure water jet nozzle 4 sprays old water from the abdomen 13b of the fish body 13. M! at the position where it comes into contact with the dorsal meat part 13c side of the cut surface 13g of the head of the fish body 13 while injecting toward the fish body 13. ! I'm being forced to do it. 8 receives internal organs 13f squeezed out by jetting high-pressure water from a high-pressure water jet nozzle 4 onto the abdomen 13b of the fish body 13 from which the head 13a has been removed from the anus 13e toward the cut surface 13g of the head. A visceral guide guide 9 guides the fish body 13 to a predetermined position, and a head guide guide 9 receives the head 13a excised from the fish body 13 and guides it to a predetermined position.

[For production]

Next, the operation of carrying out the method for removing internal rA from a fish body according to the present invention using the fish body viscera removal apparatus according to the present invention configured as described above will be described below.

The caught fish 13 is placed on the conveyor 1 and transferred with the abdomen 13b facing the direction of movement of the conveyor 1 and the head 13a protruding from the edge of the conveyor 1.

At this time, the head transfer conveyor 2 is installed.

Head 13 of fish 13 protruding from the edge of conveyor 1
The fish body 13 is transferred in a stable state because the fish body 13 can be supported by the cutter 3. Next, the head 13a is cut off from the fish body 13, which is securely held on the conveyor 1 by the holder 7, using the cutter 3. The excised fish body 13 is further moved by the conveyor 1, and while being pressed onto the conveyor 1 by the pressing plate 5, high pressure water is sprayed from the high pressure water jet nozzle 4 onto the abdomen 13b from the anus 13e to the head cut surface 13g.
At this time, the back meat 13c of the cut surface 13g of the head of the fish body 13 comes into contact with the fixed guide plate 6, and the fish body 13 is ejected from the high-pressure water jet nozzle 4. The force of the jetted high-pressure water prevents the water from protruding or falling off the conveyor 1, and the pressure plate 5
Since the dorsal meat part 13c of 3 is pressed onto the conveyor 1, the abdomen 13 is
Fish body 1 trying to bend backward in the traveling direction by being pressed by b
3 is kept straight. The fish body 1i13f squeezed out in this way is used for food such as ovaries and milt, and the oil extracted from the fish body 13f is also used.
13f processing can be easily performed.

〔Effect of the invention〕

The fish viscera removal device implementing the fish viscera removal method according to the present invention as detailed above is capable of squeezing out the viscera from a fish body whose head has been removed without bending the fish body. By narrowing the distance between fish bodies, it is possible to increase the speed of the device, which greatly improves processing capacity, and since there is no need to modify the fish body when feeding it to the bone removal device, there is no need for human labor. This reduces labor costs and is highly economical.

Furthermore, when removing the head, a holding plate is used to press the fish body onto the conveyor, so the head can be removed smoothly.Also, when squeezing out the internal organs, the device that presses the abdomen of the fish body can be used in unlimited quantities at the fishing site. Since it is high-pressure water made by increasing the pressure of existing water, it has little effect on the fish body and does not damage the internal organs that are squeezed out.Furthermore, if an internal organ guide or a head guide is installed, the internal organs and head will be removed. It has various advantages such as being able to use the entire fish body without wasting it by collecting the parts and using the ovaries etc. as food and the head as feed, and its industrial value is extremely large. .

[Brief explanation of drawings]

FIG. 1 is a plan view showing a main part of an embodiment of an apparatus for carrying out the method for removing fish body III according to the present invention, FIG. 2 is a perspective view showing the main part of FIG. 1, and FIG. Figure 1 is an explanatory plan view of the main parts showing the state in which the head of the fish body is removed.
FIG. 5(A) is a front view explaining the main part showing a state in which the internal organs of a fish body are removed in the figure. (B) and (C) are respectively enlarged perspective views showing the process of removing the internal organs of a fish body, Fig. 6 is a front view showing the shape of the fish body from which internal organs are removed, and Fig. 7 is a simplified view of the bone removal device. The explanatory front view shown in FIG. 8 is (a) an end view taken along line A-A in FIG. 7, and (b) an end view taken along line B-B in FIG. (c) It is a CC line end view. In the drawing, 1...Conveyor 1a...Dividing section 2...Head transfer conveyor 3...Cutter 4...High pressure water injection nozzle 5...Press plate 6... ... Fixed guide plate 7 ... Holder 8 ... Internal organs guide guide 9 ... Head guide guide 10 ... Spring (for holder) 11 ... Spring (for press plate) ) 12...Bone removal device 12a...Belt 12b...Abdominal incision cutter 12c, 12d...Bone removal cutter 13...
Fish body 13a...Head 13b...Abdomen 13c...Dorsal flesh 13d...Legs 13e...Anus 13f...Internal organs 13g...Head cut surface Patent Applicant: Taiyo Fisheries Co., Ltd. No. 1, Figure No. 6, No. 2 (A) (0) (C)

Claims (1)

[Scope of Claims] 1. A conveyor which is divided into a large number of compartments at predetermined intervals in a direction substantially perpendicular to the direction of travel and rotates in a predetermined direction at a constant speed, with the abdomen facing the direction of travel and the head. After the head of the fish is cut off with a cutter at the edge of the conveyor, the dorsal part of the fish is pressed onto the conveyor and the head of the fish is cut off. A method for removing viscera from a fish body, which comprises squeezing out the viscera by squirting high-pressure water onto the abdomen of the fish body from the anus toward the cut surface side of the head when the dorsal meat side of the surface abuts a fixed guide plate. 2. The fish viscera removal method according to claim 1, wherein the conveyor is a conveyor having compartments each having a generally U-shaped cross section with an upwardly inclined side wall in the direction of travel. 3. The method for removing viscera from a fish body according to claim 1 or 2, wherein high-pressure water having a pressure of 25 to 35 kgf/cm^2 is injected at a flow rate of 70 to 120 l/min. 4 Apply high pressure water to the fish body placement surface of the conveyor for 10 to 20 minutes.
4. The method for removing viscera from a fish according to any one of claims 1 to 3, wherein the jet is ejected from a position diagonally above and close to the anus of the fish on the conveyor. 5. A conveyor (1) that is divided into a large number of compartments (1a) at predetermined intervals in a direction substantially perpendicular to the direction of travel and rotates in a constant direction at a predetermined speed; 1a), the head (13a) of the fish (13) to be transferred is placed and transferred with the abdomen (13b) facing the direction of movement and the head (13a) protruding from the edge of the conveyor (1). A rotationally driven cutter (3) for cutting at the edge position of the conveyor (1), a holder (7) for holding the fish body (13) whose head (13a) is to be cut off by the cutter (3), and a head Department (
The dorsal part (13c) of the fish body (13) from which 13a) was removed
A pressing plate (5) that presses the fish onto the conveyor (1) by the action of a spring (11), and the cut surface (13g) of the head of the fish body (13) that is pressed by the pressing plate (5). A fixed guide plate (6
), and the pressing plate (5) comes into contact with the fixed guide plate (6).
The abdomen of the fish (13) is in a state of being pressed by
13b) From the anus (13e) to the cut surface of the head (13g)
A fish evisceration device comprising a high-pressure water jet nozzle (4) for squeezing out the internal organs by jetting high-pressure water toward the side. 6. The fish eviscerating device according to claim 5, wherein the partition part (1a) of the conveyor (1) is formed in a substantially U-shaped cross section with a side wall on the side in the direction of movement inclined upward. 7 The head (13a) of the fish (13) that is placed and transferred with the head (13a) protruding from the edge of the conveyor (1)
The fish eviscerating device according to claim 5 or 6, further comprising a head transfer conveyor (2) on which the fish body is placed and rotates at the same speed and parallel to the traveling direction of the conveyor (1). 8. The fish viscera removal device according to claim 5 or 6, wherein the high-pressure water injection nozzle (4) has a tip end having a flat cross-sectional shape. 9. The organ according to any one of claims 5 to 8, further comprising a viscera guide (8) for receiving the viscera (13f) squeezed out by the high-pressure water jetted from the high-pressure water jet nozzle (4). Fish evisceration device. 10. A fish eviscerating device according to any one of claims 5 to 9, further comprising a head guide (9) for receiving the excised head (13a) of the fish (13).