JP2010187613A - Method for preparing fish body for drying, method for treating fish body, and device for gripping backbone of fish body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for preparing a fish body for drying, capable of performing the method of the preparation for drying in a good efficiency and also hygienically by holding the fish body as an upper-facing hanging down state (so called hanging in midair state), and gripping the head part by a hand and pulling it in the downward direction so as to peel skin off, without moving the fish body in the state of the hanging down. <P>SOLUTION: This method for preparing the fish body for drying comprises a partially cutting off process S1 of partially cutting off the neck part of the fish body F to make it a state that the head part F1 of the fish body is linked with a body part F3 by a non-cut neck part F2, a hanging down process S2 of making the cut surface F4 upper-facing and gripping the backbone B exposed from the cut off surface by a backbone-gripping device 1 to hold the fish body in an upper-facing hanging down state, and a preparation-for-drying processes S3, S4 of removing the head part, and skin, viscera, etc., connected thereto from the body meat F6 by gripping the head part of the fish body in the hanging down state by a hand and pulling it downward so as to peel the skin F5 off. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a fish body cutting method, a fish body processing method, and a fish body spine gripping apparatus, particularly a fish body, which is a fish pig.

  Conventionally, as a method of stripping (skinning method) that targets the pig, the pig is cut by cutting the neck of the pig from the back to the vent so that only the ventral part of the neck of the pig is left. The step of connecting the head of the head to the trunk only at the ventral portion of the neck, the step of grasping the spine exposed on the cut surface, and the head partly cut And a step of moving the grasped spine in a direction substantially parallel to the spine and in a direction opposite to the tail of the hog (see Patent Document 1).

JP 7-289152 A

However, the above-mentioned conventional technology puts the fish body in the lie down, grabs the spine in the lie down state, and pulls it horizontally to remove the head and the continuous skin and internal parts from the trunk. (I am missing one).
In this way, the method of placing the fish on its side inevitably requires a platform for placing the fish, so that platform interferes with the work, and the fish is placed on the platform when setting the fish. The workability is very bad, for example, there are restrictions on the position to place and it is necessary to hold the fish.
In particular, since the fish body is placed on the table, various bacteria on the table are attached to the body after missing, which is unsanitary and has a high problem of food safety.
In addition, the fish body is pulled horizontally by grabbing the spine, and the head is pulled down, so the fish spine direction is different from the skin peeling direction, and it can not be smooth and the body will be damaged. There is also a problem.

  In the present invention, the fish body is not placed on a table but held in an upwardly suspended state (so-called suspended state), and the head is held by hand without moving the trunk while in the suspended state. It is an object of the present invention to provide a technique for fish lacking that can be carried out efficiently and in a sanitary manner by pulling downward as if peeling off.

In order to solve the above-mentioned problem, the fish body missing method of the present invention (Claim 1) is:
A partial cutting step (S1) for partially cutting the neck of the fish body (F) so that the head (F1) of the fish body is connected to the body (F3) at the uncut neck part (F2);
A suspending step (S2) in which the cut surface (F4) of the neck is faced upward, the spine (B) exposed from the cut surface is gripped by the spine gripping device (1), and the fish body is held in the upwardly suspended state. ,
In the suspended state, the head of the fish body is grasped by hand and pulled down downward to peel off the skin (F5), thereby removing the head and the continuous skin and built-in from the body (F6). It was set as the structure provided with the missing part process (S3) and (S4).

Moreover, the processing method of the fish body of this invention (Claim 2) is as follows.
Including the fish body missing method according to claim 1,
A body washing step (S5) for washing the body while the body of the fish body is held in a suspended state by the spine grabbing device after the lacking step (S3), (S4);
A grip releasing step (S6) for releasing the grip of the spine by the spine gripping device after the washing step and dropping the trunk by its own weight;
A chuck cleaning step (S7) for cleaning the spine gripping device after the grip release step;
It was set as the structure equipped with.

In addition, the fish spine grasping device of the present invention (Claim 3)
A spine gripping device (1) for use in the fish body missing method according to claim 1, wherein a gripping claw that holds the fish body in an upwardly suspended state by grasping the spine exposed from the cut surface of the neck of the fish body. 17a) and (17b).

In addition, the fish spine grasping device of the present invention (Claim 4)
4. The fish spine gripping device according to claim 3, comprising a pair of left and right grip claws (17a) and (17b) that open and close in opposite directions, and both grip claws hold the spine in its closed state and face the fish upward. It is made the structure formed so that it may be hold | maintained and the spine is released in the open state, and the trunk | body is fallen by dead weight.

Further, the fish spine grasping device of the present invention (Claim 5)
5. The fish spine gripping device according to claim 4, wherein an inclined receiving surface (19) for guiding the spine toward the gripping surface (18) is formed on one gripping claw (17a).

Further, the fish spine grasping device of the present invention (Claim 6)
6. The fish spine gripping device according to claim 4 or 5, wherein, in a plan view, the opposing direction of the gripping claws is formed to have a predetermined angle (θ) with respect to the direction of the operator.

The fish body missing method of the present invention (Claim 1) is characterized in that the fish body is held in an upwardly suspended state, and the head is held by this hand while being suspended and pulled downward.
Thereby, unlike the conventional case, a stand for placing the fish body is not necessary, and the fish body can be set only by grasping the spine with the spine grasping device, so that the work efficiency can be remarkably improved.
Also, because the fish body is suspended and the head is pulled downward by hand, it is hygienic and food-free, with no bacteria attached to the trunk, just by touching the head and skin. Safety can be ensured.
Moreover, since the direction of the spine of the fish body and the direction of peeling the skin are the same direction, the fish body can be cut smoothly without being damaged.

The fish body processing method of the present invention (Claim 2) includes the fish body cutting method according to Claim 1, and includes a suspension process, a body cutting process, a body cleaning process, a grip release process, and a chuck cleaning process. There is a feature in that.
Accordingly, fish body missing, body cleaning, body removal, and chuck cleaning can be performed continuously, and fish processing including fish body missing can be efficiently performed.

The spine gripping device for a fish body of the present invention (Claim 3) includes a gripping claw, and the fish body can be held in an upwardly suspended state by the gripping claw.
The grip claws are not limited to the left and right pairs that open and close in the opposite direction, but also include those that open and close in three or four directions. In short, hold the spine in its closed state and suspend the fish upward The fish body should just be formed so that it can be held and released in its open state to release the spine by its own weight.

  The fish spine gripping device of the present invention (Claim 4) is provided with a pair of left and right gripping claws that open and close in the opposite direction, and thus the structure is simplified by making the gripping claws a pair of left and right. Maintenance such as cleaning is also easy.

  As described above, when the grip claws are paired on the left and right, if one of the grip claws is formed with an inclined receiving surface (Claim 5), the fish body can be set while applying the spine to the inclined receiving surface. The spine can be reliably positioned between the left and right claws.

  Further, when the gripping claws are paired on the left and right, when the opposing direction of the left and right gripping nails is given a predetermined angle (for example, 45 degrees) with respect to the direction of the operator in plan view (Claim 6), The operator can confirm the openness and depth of the left and right gripping claws without changing the working direction, and can position the spine in a reliable and easy posture when setting the fish.

Process explanatory drawing which shows the Example of the fish missing method corresponding to Claim 1 of this invention. The top view which shows the Example of the processing apparatus of the fish body used for the processing method of the fish body corresponding to Claim 2 of this invention. The front view which shows the Example of the processing apparatus of the fish body. The front view which shows the state which opened the grasping nail | claw in the spine grasping apparatus of the fish body corresponding to Claims 3-6 of this invention. The front view which shows the state which closed the grasping nail | claw in the spine grasping apparatus. Sectional drawing which shows the grip nail. Sectional drawing which shows the other examples of a grip nail.

In each of the following examples, the fish body to be processed will be described as a river pig.
First, an embodiment of a fish missing method corresponding to claim 1 of the present invention will be described with reference to FIG.
This lacking method includes a partial cutting step S1 (FIG. 1-i), a suspension step S2 (FIG. 1-b), and a lacking step S3-S4 (FIG. 1-ha-ni). .

As pre-processing of the partial cutting step S1, the tail fin, the back fin, the chest fin, and the buttocks fin of the fish body F are excised with a knife N or the like.
Next, the partial cutting step S1 is performed. Here, the fish F is placed on the cutting board M, the knife N is put on the neck of the fish F from the back side to the stomach side, and the neck portion is partially cut. The head F1 of the fish body F is connected to the trunk F3 at the ventral non-cut neck portion F2.

In the suspending step S2, the head F1 is folded from the uncut neck portion F2 to the ventral side, the cut surface F4 of the neck is faced upward, and the spine B exposed from the cut surface F4 is gripped by the spine gripping device 1, The fish F is held in an upwardly suspended state (so-called suspended state).
In this way, the fish body F can be set only by gripping the spine B with the spine gripping device 1.
In addition, although the example is demonstrated about FIG. 4-6 mentioned later about the spine grasping apparatus 1 in the missing part method of this invention, it is the structure which can hold | maintain the fish body F in the upward suspended state by grasping the spine B. FIG. It may be sufficient and it is not limited to an Example.

  Next, in the lacking step S3, in the suspended state, the worker X holds the head F1 of the fish body F with the hand X1 and pulls it down so as to peel off the skin F5. As in S4, the head F1, the skin F5 continuous with the head F1, the built-in portion, and the like can be removed from the body F6.

In this way, the fish body F is suspended and the head F1 is pulled down manually, so that the hand F1 and the skin F5 are not touched by any germs on the body F6. It is hygienic and can ensure food safety.
Further, in the suspended state, the direction of the spine B of the fish F is vertical, and the direction of peeling the skin F5 is also downward, so the direction of the spine B and the direction of peeling the skin F5 are the same direction. The body F6 can be smoothly missing without damaging it.

  Next, an embodiment of a fish processing method and processing apparatus corresponding to claim 2 of the present invention will be described with reference to FIGS.

  This processing method includes the above-mentioned missing part method (shown in FIG. 1) in the process, and as shown in FIG. 2, the suspending step S2 (FIG. 1-b) in the missing part method → the missing part method In step S3 to S4 in FIG. 1 (FIG. 1), the body cleaning step S5, the grip release step S6, and the chuck cleaning step S7 are sequentially performed.

  As shown in FIG. 3, the fish processing apparatus has a cross arm 62 attached to the upper end of a drive shaft 61 that is intermittently rotated every 90 degrees by an electric motor 60, and grips the spine at the tip of each arm of the cross arm 62. A body position P1 in which a device 1 is provided, and each spine gripping device 1 performs the suspension step S2 and the body portion steps S3 to S4 of the body portion method in accordance with the intermittent rotation of the drive shaft 61; Circulation is performed in which the body cleaning position P2 for performing step S5, the grip release position P3 for performing grip release process S6, and the chuck cleaning position P4 for performing chuck cleaning process S7 are intermittently moved in order and returned to the body position P1 again. It is controlled to repeat.

The spine grasping device 1 is for holding the fish F in the upwardly suspended state by grasping the spine B exposed from the cut surface F4 of the neck of the fish F.
As shown in FIGS. 4 and 5, the spine grasping device 1 includes left and right grasping arms 13, 13 that are pivotally attached by pins 12 to a support plate 11 that is suspended from the respective distal ends of the cross arms 62. The links 16 and 16 connected between the upper ends of the left and right grip arms 13 and 13 and the lower end of the rod 15 of the opening and closing cylinder 14 attached to the arm tip of the cross arm 62, and the grip arms 13 and 13 have gripping claws 17a and 17b formed at the lower end of the belt.

When the opening / closing cylinder 14 is actuated to advance the rod 15 downward, as shown in FIG. 5, the upper ends of the gripping arms 13, 13 are opened around the pin 12 via the links 16, 16, and the lower ends The grip claws 17a and 17b close in the opposite direction, and the spine B can be sandwiched in this closed state to hold the fish F in the upwardly suspended state.
Further, when the opening / closing cylinder 14 is operated to retract the rod 15 upward, as shown in FIG. 4, the upper ends of the gripping arms 13, 13 are closed around the pin 12 via the links 16, 16, The grip claws 17a and 17b at the lower end open apart from each other in the opposite direction, and in this open state, the spine B can be released and the body F6 can be dropped by its own weight.

As shown in FIG. 6, the gripping claws 17a and 17b are formed in the shape of a longitudinal groove in which opposing gripping surfaces 18 and 18 are formed in a semicircular concave shape in a plan view. As an application, a large number of irregularities are formed in a horizontal streak shape.
Further, the grip claws 17a and 17b have a predetermined angle θ (45 degrees in the embodiment) in an opposing direction (arrow A1 direction) with respect to the operator's direction (arrow A2 direction) in plan view. Is formed.

Thus, by providing the angle θ in the direction in which the grip claws 17a and 17b face each other, the worker X can check the opening and depth of the left and right grip claws 17a and 17b without changing the work direction. The positioning of the spine B can be performed in a reliable and easy posture.
In other words, when the facing direction of the gripping claws 17a and 17b is the same as the direction of the worker X, the gripping claws 17a and 17b are not opened because they are hidden by the gripping claws 17b on the near side as viewed from the worker X. It is difficult to confirm the depth, and this defect can be solved by the angle θ.

Of the left and right gripping claws 17 a and 17 b, an inclined receiving surface 19 is formed on the gripping claw 17 a on the back side as viewed from the worker X so that the opening width gradually increases from the gripping surface 18.
When setting the fish body F, the spine B can be reliably positioned between the left and right gripping claws 17a and 17b by applying the spine B to the inclined receiving surface 19 and guiding it.

  In addition, since the angle θ is provided in the opposing direction of the gripping claws 17a and 17b, and the inclined receiving surface 19 is formed on the gripping claw 17a on the back side as viewed from the operator X, the gripping claw 17a on the back side is formed. The gripping surface 18 and the inclined receiving surface 19 can be easily seen from the position of the worker X, and the spine B can be more reliably positioned.

Returning to FIG. 2 and FIG. 3, the fish processing method and processing apparatus will be described.
In the missing position P1, the hanging process S2 and the missing processes S3 to S4 of the missing method shown in FIG. 1 are performed. This is performed by a foot switch (not shown) arranged in the above.

At the body cleaning position P2, the body cylindrical cover 2 for covering the periphery of the body F6 held in a suspended state by the gripping claws 17a and 17b is provided so as to be moved up and down by the cleaning cylinder 20. It has been.
The body cylindrical cover 2 is provided with a nozzle 21 for injecting cleaning water from the periphery (four directions in the embodiment) toward the center.
When the body F6 moves from the body position P1 to the body cleaning position P2, the body cylindrical cover 2 is controlled to move up and down several times while spraying cleaning water from the nozzle 21. In addition, dirt such as blood adhering to the trunk F6 can be washed away by spraying the cleaning water while preventing the scattering of the cleaning water by the cylindrical cover 2 for the trunk.
The washing water is drained to a predetermined place from a drain port 22 formed in the bottom of the barrel cover 2 for the trunk.

At the grip release position P3, the spine grasping device 1 controls the body F6 after cleaning, which has moved from the body cleaning position P2, to release the grip of the spine B by the grip claws 17a and 17b and drop it by its own weight. Has been.
In this case, if the falling body F6 is dropped and accommodated in a packaging bag (not shown), the body F6 can be removed at the same time as the body F6 is removed, and the time for exposure to the outside air can be shortened to prevent the attachment of germs. Can be suppressed.

  Further, a sterilization tank (not shown) containing a sterilizing liquid such as citric acid is provided at the grip release position P3 so as to be movable up and down, and the body is submerged in the sterilizing liquid before releasing the grip of the spine by the gripping claws. It is also possible to control.

At the chuck cleaning position P4, the chuck cylindrical cover 3 for covering the periphery of the gripping claws 17a and 17b with the gripping claws 17a and 17b opened and the body F6 removed can be moved up and down by the chuck cylinder 30. Is provided.
The cylindrical cover for chuck 3 is provided with a nozzle 31 for injecting cleaning water from the periphery (two directions in the embodiment) toward the center.
When the spine gripping device 1 moves from the grip release position P3 to the chuck cleaning position P4, the chuck-like cover 3 moves up and down while opening and closing the grip claws 17a and 17b several times and injecting cleaning water from the nozzle 31. The chuck cylindrical cover 3 prevents the splashing of the washing water and sprays the washing water to wash away dirt such as blood adhering to the gripping claws 17a and 17b. it can.
The cleaning water is drained to a predetermined place from a drain port 32 formed at the bottom of the chuck cylindrical cover 3.

  Therefore, in the above-described fish processing method and processing apparatus, fish body missing, body cleaning, body removal, chuck cleaning can be performed continuously, and fish processing including fish body missing is performed. Can be done efficiently.

  Next, FIG. 7 shows another example of the gripping claws in the spine gripping device 1. In this example, the three gripping claws 17 are opened and closed in three directions, and the spine B in the closed state (state of FIG. 7). The fish F is controlled to be held in an upwardly suspended state, the spine B is released in the opened state, and the body F6 is dropped by its own weight.

The gripping claws are not limited to two or three, but may be four or more. The opening / closing mechanism is not limited to the embodiment, and the gripping claws can be directly opened / closed by a cylinder or sent instead of the cylinder. It can be opened and closed using screws, solenoids, etc., or using cams or the like without using links.
In addition, the fish species to be processed are preferably fish pigs with hard bones, but this is not limited to this, and it is a fish species that does not crush or crush bones with its gripping claws and that can be missing. If present, the method and apparatus of the present invention can be applied.

  In addition, the spine grabbing device is attached to the cruciform arm that rotates intermittently in the embodiment, but it can be installed in a fixed state so that the position can be a missing position, and one worker can alternately perform missing work. It is also possible to arrange two spine gripping devices side by side so as to be able to do so.

DESCRIPTION OF SYMBOLS 1 Spinal grip apparatus 11 Support plate 12 Pin 13 Grasp arm 14 Opening / closing cylinder 15 Rod 16 Link 17 Grasp claw 17a Grasp claw 17b Grasp claw 18 Grasp surface 19 Inclined receiving surface 2 Body cylindrical cover 20 Cleaning cylinder 21 Nozzle 22 Drain port 3 Chuck cylindrical cover 30 Chuck cylinder 31 Nozzle 32 Drain port 60 Electric motor 61 Drive shaft 62 Cross arm B Spine F Fish body F Head F2 Uncut neck part F3 Body F4 Cut surface F5 Skin F6 Body M Cutting board N Knife P1 Missing position P2 Body cleaning position P3 Grasping release position P4 Chuck cleaning position S1 Partial cutting process S2 Hanging process S3 Missing process S4 Body missing process S5 Body cleaning process S6 Grip releasing process S7 Chuck cleaning process X Work X1 hand θ angle

Claims (6)

A partial cutting step (S1) for partially cutting the neck of the fish body (F) so that the head (F1) of the fish body is connected to the body (F3) at the uncut neck part (F2);
A suspending step (S2) in which the cut surface (F4) of the neck is faced upward, the spine (B) exposed from the cut surface is gripped by the spine gripping device (1), and the fish body is held in the upwardly suspended state. ,
In the suspended state, the head of the fish body is grasped by hand and pulled down downward to peel off the skin (F5), thereby removing the head and the continuous skin and built-in from the body (F6). A body missing method comprising the steps of missing (S3) and (S4). Including the fish body missing method according to claim 1,
A body washing step (S5) for washing the body while the body of the fish body is held in a suspended state by the spine grabbing device after the lacking step (S3), (S4);
A grip releasing step (S6) for releasing the grip of the spine by the spine gripping device after the washing step and dropping the trunk by its own weight;
A chuck cleaning step (S7) for cleaning the spine gripping device after the grip release step;
A method for processing a fish body, comprising:   A spine gripping device (1) for use in the fish body missing method according to claim 1, wherein a gripping claw for holding the fish body in an upwardly suspended state by grasping the spine exposed from the cut surface of the neck of the fish body. A fish spine grasping device comprising 17a) and (17b).   4. The fish spine gripping device according to claim 3, comprising a pair of left and right grip claws (17a) and (17b) that open and close in opposite directions, and both grip claws hold the spine in its closed state and face the fish upward. The fish spine grasping device is formed so as to be held in a suspended state and to release the spine in its open state and to drop the trunk by its own weight.   5. The fish spine gripping device according to claim 4, wherein an inclined receiving surface (19) for guiding the spine toward the gripping surface (18) is formed on one gripping claw (17a). The fish spine grasping device according to claim 4 or 5, wherein, in plan view, the fish spine grasping unit is formed such that a facing direction of the grasping claws has a predetermined angle (θ) with respect to an operator's direction. apparatus.

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