JP2873612B2 - Vertical splitting method and apparatus for frozen fish - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Object of the Invention><Industrial application field> The present invention relates to a method and an apparatus for vertically dividing a frozen fish body, and particularly to a novel method which can be taken out without damaging the abdominal nest. And a method and apparatus.

<Background of the Invention> Catch, such as skipjack and tuna, must be processed, for example, into fish meat before being provided to the final consumer.
In the meantime, various processing operations are required. It is desirable to perform such an operation without thawing the fish once it has been frozen, in terms of maintaining freshness and taste of the fish.
For this reason, various proposals have conventionally been made for a device for vertically dividing three frozen fish bodies in preparation for lowering the fish bodies, but these devices merely divide the fish body into two parts and damage the abdominal nest and the like. Nothing is paid about it. For this reason, the abdominal cavity, which was originally used as a raw material for “salt spices”, was severely damaged, and was actually discarded without being reused.

<Technical matters attempted to be developed> The present invention has been made in view of such a background, and adopts a so-called half-split method with a good yield to reliably process frozen fish even if it is bent. The present invention has attempted to develop a novel method and apparatus for splitting a frozen fish body that can be processed without damaging the abdominal nest, while premised on obtaining the same.

<< Constitution of the Invention >><Means for Achieving the Object> That is, the method of vertically dividing a frozen fish body according to the first invention of the present application is as follows.
A pair of frozen fish bodies in which the head and tail are cut off in advance and the dorsal fin and belly fin are cut out so as to be grooved toward the fish side, with a gap in the area corresponding to the vertebrae After the disc-shaped cutting blade is applied from one end side of the frozen fish body to the grooved fins and belly fin removal grooves of the frozen fish body, the cutting blade rotates and is pushed into the opposite side. In order to move one or both of the frozen fish and the cutting blade, the method of breaking the fish is characterized in that the pair of cutting blades have a cutout on a part of the outer peripheral side. It consists of

In addition, the vertical splitting device for frozen fish as the second invention of the present application,
A frozen fish body holding device for maintaining the frozen fish body in a fixed posture,
A knife device having a pair of disc-shaped cutting blades with a gap in a portion corresponding to a vertebra in the frozen fish body, so that one or both of the holding device and the blade device are relatively close to each other. The cutting blade is characterized in that it has a cutout on a part of the outer peripheral side.

The present invention aims to achieve the above object.

<Effect of the Invention> According to the present invention, since the interrupting blade sequentially enters the frozen fish body from one end side of the frozen fish body, even if the frozen fish body is bent, according to the bending. Frozen fish is split in half. In addition, by sequentially applying the cutting blade to the frozen fish body from one end side, the load is not concentrated on the fish body at once, and a smooth vertical work can be performed. Furthermore, in the present invention, since a notch is present in a part of the cutting blade, if this notch acts so as to match the position of the abdominal nest in the fish body, the abdominal nest is directly interrupted. The blade does not work, and the vertical cutting operation is performed without damaging the blade.

<Example> Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. First, preliminary processing of a frozen fish body will be described with reference to FIG. Frozen fish body A in the caught state
_{In the} case where the fish is caught in the pelagic fishery, such as skipjack and tuna, for example, ₀ is in a state of being brain-frozen in the fishing tank immediately after the catch, and is landed in this state. And the head a ₁ and tail a ₂ abdomen nest section a ₃ from the refrigeration fish A ₀ in a suitable treatment plant as shown in FIG. 8 (a) ~ (d) are excised, further dorsal part a by the cutter or the like ₄ as part of the abdominal fin portion a ₅ bites into somewhat frozen fish side, is formed as, for example, V-shaped groove. Note that the portion of the V-shaped groove and removing the groove a _6. Such refrigeration fish that preparation work is finished there is shown by A _1, than it bisects the longitudinal direction by the present invention a refrigerating fish A ₁ after the ready. Reference numeral A ₂ is divided into two parts after the freezing fish, A ₃ is a further freezing fish after quadrants that interrupted it from Gawado side. In the present invention seeks to provide a technique for obtaining a frozen fish A ₂ after the two-divided by vertical division frozen fish A ₁ after ready vertically. In the following description, an apparatus for practicing the present invention will be described first, and then a method of the present invention will be described while explaining an operation mode thereof.

First, reference numeral 1 denotes a vertical splitting device for a frozen fish body, which comprises a holding device 10 and a blade device 20 incorporated in a frame 2 formed by appropriately combining stainless steel materials or the like. First, the holding device 10 uses the V-shaped holding trough 11 fixed to the frame 2 as a direct support member, and feeds the fish supported here to the blade device 20 side by the pushing bar 12. The pushing bar 12 is fixed at both ends to a chain 13 suspended left and right.
The traveling trajectory of the chain 13 is driven by the drive sprocket 14 and the turn sprocket 15 so that the chain 13 travels to a position where the fish to be processed by the blade device 20 is ready. Is set. Reference numeral M denotes a motor for driving the driving sprocket 14. Further, the holding trough 11 is provided to a position slightly past the blade tool 20, and is followed by a receiving trough 16 having a channel-shaped cross section. it is intended to receive the fish body a _2. Next, the blade device 20 will be described. This device is a pair of upper and lower disc-shaped cutting blades provided on a blade frame 21.
22 is intended to mainly, they also form a blade gap G to open the range through which a vertebra a ₇ refrigeration fish in closest proximity state. Of course, the cutting blade 22 can take any appropriate method, such as arranging the support shaft portion so as to be movable so that the gap G between the two blades can be adjusted. Also, in this embodiment,
22 is supported in a free state in which positive rotation drive is not performed, but this can be set to a drive state. In particular, in the present invention, the shape of the cutting blade 22 is characterized, and specifically, a notch 23 is formed in a part of the pair of cutting blades 22 on the outer peripheral side. As this part will be described later, when vertically dividing the frozen fish body A ₂ after dividing into _two ,
Consistent with the position of a _2, so that the per se can be processed so as not to damage the interrupt blade 22. Of course, the interrupting blade 22
Notch 23 may be formed only for those located in Harras unit a ₃ side of at least the fish of the pair of interrupt blades 22.

The present invention has as its basic configuration as described above, will be described first state of longitudinal split operations of the refrigeration fish A ₁ for this thing. First the operator put tail a ₂ side as an example a refrigeration fish A ₁ on the holding trough 11 in the holding device 10 the refrigeration fish A ₁ which unnecessary portion is removed so as to face the Warikomiha 22 side. When the motor M is driven to move the chain 13, the pushing bar 12 moves accordingly, and the holding trough is moved.
Frozen fish A ₁ on 11 is to move to interrupt the blade 22 side of the cutter device 20. Contact, by being further pushed into the removal groove a ₆ cut into the tail a ₂ side of the V-shaped pair of interrupt blade 22 is in the refrigeration fish A ₁ When accordingly, the interruption blade 22 relative now enters the freezing fish a _1, the refrigeration fish a ₁ at once to the extent enters is being bisected. By the way, this kind of work can be done because the fish bone generally has a cross-shaped cross section at the center of the fish body, but a gelatinous thin film slightly different from the fleshy part exists between them. It is easy to crack at that part. And making this interrupt edge 22 acts, in the present invention interrupt initially acts as a portion other than the cutout portion 23 of the Warikomiha 22 enters the freezing fish A _1, Halas unit a ₃ At the position where it comes to
The notch 23 in FIG. For frozen fish A ₁ thus interrupt the action of substantially interrupt the blade 22 is eliminated almost without damaging the abdominal nest portion a ₃ of this section, it being bisected. Incidentally such a case, Halas unit a ₃ actually is of being taken into a state of being fixed to either side of the refrigerating fish A ₂ after halving. Many are the retrieved remains on the side of the vertebra a ₇ remained. Incidentally, when acting interrupt blade 22 to the refrigerating fish A ₂ In the vertical split device 1 of the refrigeration fish of the present invention as will be understood from the above description, certainly initially no notch 23 parts Acts on the abdominal nest
Since the notch 23 must act when a ₃ comes, the cutting blade 22 is rotated freely, and the upper and lower splitters are set so that the timing is positively set as shown in FIG. The cutting blade 22 may be connected by a gear 24, and the timing of the gear 24 may be controlled so as to have a predetermined timing with the drive system of the transfer chain 13 so that the timing is always set. Of course, in the case of free rotation, for example, an appropriate weight or the like is attached to the interrupting blade 22 or its supporting shaft so that the position where the cutting blade 22 first acts can always be set in a free state. Of course it is possible.

Further, in the present invention, various modifications can be made based on the basic embodiment described above. According firstly to the present invention frozen fish A ₁ and the interrupt edge 22 and is relatively close to e.g. tail
Since the a ₂ side may be acting interrupt blade 22, leave freely move Warikomiha 22 side, whereas, frozen fish A ₁ may also be interrupted in a state of being fixed at a certain position. In addition, the cutting blade
22 is often because the frozen fish A _2, which is completely divided into two parts almost in a state that enters to some extent in frozen fish A _1, with a stroke of up Warikomiha 22 has completely passed through the refrigerating fish A ₁ No need to move. The Stated how to support frozen fish A _1, longitudinally in a state of standing frozen fish A ₁ as shown in the first to third drawing (state the ventral fin portion a ₅ a dorsal portion a ₄ upward and downward) In addition to performing the vertical split operation with the direction set horizontally, it is possible to perform the operation by setting the horizontal position as shown in FIG. 6 (a). Needless to say, in this case, the blade surface of the interrupting blade 22 is set in a state in which the axis is vertically arranged horizontally. The addition to the longitudinal direction of the thus frozen fish A ₁ every horizontal placed upright longitudinal direction as shown in FIG. 6 (b), frozen vertically fish
It is also possible to perform the vertical split work by moving one or both of A ₁ or Warikomiha 22. Note In performing such Tatewari work, for example, frozen fish case of moving the A ₁ side, by sliding the push bar 12 over the holding device 10 in which the trough-like holding trough 11 mainly as in this embodiment In addition to performing the processing operation, for example, the processing operation may be performed one by one by reciprocating one holding device 10.

Furthermore not limited to those already mentioned in FIG. 7 (a) to indicate discoidal is a modification of the interrupt blade 22, for example, bisected frozen fish body A vertebral a ₇ or the like on either side of the ₂ The shape of the interrupting blade 22 can be changed so as not to remain. As shown in FIG. 7 (b), a disk-shaped single-edged blade is used as the interrupting blade 22, and two blades are provided so as to face each other. And in this case the frozen fish body A ₁
Removal groove itself also removing the dorsal part a ₄ abdomen fin unit a ₅
It is desirable to pre-processed into W-shaped groove shape of a ₆ bordering the tip of the fish bone. Thus vertebral a ₇ during interruption blades 22 are opposed coaxially provided to be the remaining, fish portions on both sides is become to be divided.

<< Effects of the Invention >> As described above, in the present invention, when the frozen fish body A ₁ is vertically divided, the interrupting blade 22 is caused to act sequentially from one end side of the frozen fish body A ₁ , which is extremely simple. Reliable division can be achieved with a simple configuration. And particularly in the present invention are notched portion 23 is formed in a portion of Warikomiha 22, Halas unit a ₃ if caused to act to this product matches the position of Harras portion a ₃
Can be split without damaging the floor. As a result, it is possible to reuse the Halas unit a ₃ etc. separately as salted material.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a vertical splitting device of a frozen fish body of the present invention, FIG. 2 is a vertical sectional view of the same, FIG. 3 is a vertical rear view of the same, and FIG. FIG. 5 is a skeleton diagram showing a state in which the acting on the frozen fish body, FIG. 5 is an explanatory view showing an embodiment in which the cutting blade is actively rotated, and FIG. FIG. 7 is a cross-sectional view showing another embodiment of the cutting blade and the cutting blade applied to FIG. 1 to FIG. 6, and FIG. It is explanatory drawing which shows a series of processing states until it divides and further reaches four divisions. 1; Frozen fish vertical splitting device 2; Frame 10; Holding device 11; Holding trough 12; Push bar 13; Chain 14; Drive sprocket 15; Turn sprocket 16; Receiving trough 20; Blade device 21; Blade frame 22; blades 23; notch 24; gear a _0; refrigeration original form fish a _1; frozen fish a ₃ after halving; frozen fish a ₂ after ready after quadrant frozen fish a _1; head a _2; tail a _3; Halas section a _4; dorsal part a _5; ventral fin portion a _6; removal groove a _7; vertebrae G; blade gap M; motor

Claims (2)

(57) [Claims] 1. A frozen fish body in which a head and a tail are cut off in advance and a dorsal fin and a stomach fin are cut out so as to be grooved in the fish body side are provided with a gap in an area corresponding to a vertebra. After applying a pair of disc-shaped slitting blades to the dorsal fin of the frozen fish from the one end side of the frozen fish and the groove for removing the belly fin, the cutting blade rotates. While being pushed to the other side,
In the method of moving one or both of the frozen fish and the cutting blade and breaking the fish, at least the cutting blade on the abdominal nest side of the pair of cutting blades has a cutout on a part of the outer peripheral side. A method of vertically dividing a frozen fish body, wherein the method comprises: 2. A frozen fish body holding device for maintaining a frozen fish body in a fixed posture, and a blade device having a pair of disk-shaped cutting blades having a gap at a portion corresponding to a vertebra in the frozen fish body, One or both of the holding device and the blade device are configured to be relatively close to each other, and at least one of the pair of cutting blades on the fish abdominal nest side is notched at a part on the outer peripheral side. A vertical splitting apparatus for a frozen fish body, comprising: