JPH0217140B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for cutting the harrass of a fish in order to perform abdominal treatment on the fish prior to removing internal organs, black skin, mefun, etc. of the fish.

BACKGROUND TECHNOLOGY In the harassing cutting process of a fish body, which is performed prior to the process of removing internal organs, black skin, etc. of a fish body, conventionally, the head is cut off and both sides of the fish body are cut with the abdomen facing down and the back facing up. The fish body is held and conveyed by a pair of conveyor belts, and a rotary round blade having a vertical axis of rotation provided in the middle of the conveyance path cuts the harrass of the fish body, thereby performing abdominal dissection of the fish body.

Problems to be Solved by the Invention In the above prior art, since the rotary round blade is provided at a fixed position, there may be variations in the size of the fish to be dissected, or variations in the posture when inserting the fish. In this case, when the cutter is cut with a rotating round blade, excess meat is cut off, resulting in a poor yield.

The purpose of the present invention is to solve the above-mentioned technical problems,
To provide a fish body harassing cutting device capable of always performing harassing cutting processing with improved yield even if there are variations in the size of the fish bodies and variations in the posture of the fish bodies at the time of feeding.

Means for Solving the Problems The present invention comprises: a pair of conveyor belts that grip and convey both sides of a fish whose head has been cut off and whose abdomen is down and its back up; a holding plate which is provided at a fixed position and presses down the back of the fish; and a means for driving the fish to move vertically so that the back comes into contact with the holding plate, which supports the harassment of the fish and is capable of vertical displacement. a guide plate having a first inclined surface that slopes upward toward the downstream side in the conveyance direction; and a second sloped surface that connects to the first slope and slopes downward toward the downstream side in the conveyance direction; a spring that biases the plate toward the holding plate; and a displacement driving means provided on the downstream side of the displacement driving means in the conveying direction, and having a predetermined distance from the holding plate in the height direction. This is a fish body harassment cutting device characterized in that it includes a rotary round blade for cutting fish body harassment, which is arranged at a distance from the fish body and has a rotation axis perpendicular to the transport direction.

Function According to the present invention, the fish body being conveyed by the pair of conveyor belts is displaced by the vertical displacement driving means to a position where the back part of the fish body abuts against the presser plate. The fish body whose height has been adjusted in this manner has its harrass cut off by a rotary round blade disposed downstream of the displacement driving means in the transport direction. In this way, the fish body is adjusted so that its back is in contact with the presser plate before being fed to this rotary round blade, which is provided at a predetermined distance from the presser plate in the height direction. Therefore, even if there are variations in the size of the fish, or variations in the posture at the time of feeding, it is possible to cut the harrass from the fish with the most suitable cutting device. Further, in the present invention, when passing through the second inclined surface of the guide plate, the back of the fish comes into close contact with the holding plate, so that the center and back of the fish are transported in a substantially parallel state. Therefore, the horizontal rotary round blade cuts the fish body's harrass parallel to the center line of the fish body, thereby increasing the yield and performing reliable harrass cutting process without cutting unnecessary fish meat. be able to.

Embodiment FIG. 1 is a front view of a fish body harassment cutting device 1 showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. In FIG. 1, the conveyor belt on the front side is omitted for ease of illustration. The fish body harassment cutting device 1 includes a pair of endless conveyor belts 2.
a and 2b are starting end pulleys 3a and 3b, respectively
Then, it is wound and stretched between the terminal end pulleys 4a and 4b. The terminal end pulleys 4a, 4b are rotationally driven in the direction of the arrow by a drive source (not shown), and thereby the conveyor belts 2a, 2b are driven to travel in the direction of the arrow at the same speed. Start end side pulley 3a, 3
A pedestal 5 is provided near b. A fish body F with its head cut off and its abdomen facing down is mounted on this cradle 5. This fish body F is carried by the conveyor belts 2a, 2
b, and is conveyed along the conveyance direction A from the starting end toward the terminal end.

Within the transport path of the fish F, there is a means 6 for vertically displacing and driving a plurality of fish F (two in this example).
, a pair of left and right rotary circular blades 7a and 7b for harassing cutting having a vertical rotation axis, a black skin removal device 8 for the abdomen of a fish body F, and a pair of left and right fillet knives 9a and 9b.
are arranged in this order from the starting end to the ending end. The rotary round blades 7a and 7b are driven by a motor M.

FIG. 3 is a perspective view of the vicinity of the fish body displacement driving means 6, and FIG. 4 is a sectional view taken from the section line - in FIG. 3. The fish body displacement driving means 6 is a fish body F
A guide plate 10 that supports and guides the harrass, a support cylinder 11 that supports this guide plate 10, and a support cylinder 11.
a support shaft 13 that can be inserted into the tube hole 12 of the support tube 1;
1 and a guide tube 14 through which a support shaft 13 is loosely inserted. The guide tube 14 is supported by a support piece 15. A spring 16 is installed inside the guide tube 14,
This spring 16 covers the support shaft 13, has one end fixed to the lower surface of the support tube 11, and has the other end fixed to the guide tube 11.
It is fixed to the bottom wall of 4. With this, the support tube 11
is biased upward by the spring force of the spring 16.

The guide plate 10 has a first inclined surface 10a having a generally U-shaped cross section perpendicular to the axis, and inclined upward as it goes downstream in the transport direction A of the fish F;
A second inclined surface 10b that is connected to the first inclined surface 10a and inclined downward as it goes downstream in the conveyance direction A.
and has. Above this guide plate 10 is a support shaft 1.
A presser plate 17 having a flat abutment surface 17a perpendicular to the axis of 3 is disposed. This presser plate 17
is fixed at its end by a support member 18 (see FIG. 2). Therefore, when the fish F passes through the guide plate 10, the fish F is positioned in the height direction so that the back part of the fish F comes into contact with the contact surface 17a of the presser plate 17. Note that the pressing plate 17 has an extremely small elasticity compared to the spring force of the spring 16. Thereby, as will be described later, even when an extremely large fish F passes by, it is possible to appropriately position the harassing cutting position.

FIG. 5 is a sectional view taken along the section line - in FIG. 2. A pair of guide rollers 19a, 19b are provided above the rotary round blades 7a, 7b and on both sides of the conveyor belts 2a, 2b. These guide rollers 19a, 19b have vertical shafts 20a, 20b.
and are urged toward each other by a spring 21. Therefore, the conveyor belt 2
The clamping surfaces of a and 2b are kept parallel, so that the fish body F can be clamped from both sides.

The distance l1 between the presser plate 17 and the rotary round blade 7 is
Therefore, before being fed to the rotary round blade 7, the fish body F is constantly brought into contact with the holding plate 17 by the fish body displacement driving means 6. Since the fish are fed after being adjusted to a predetermined height position based on the holding plate 17, when the fish are cut by the rotary round blade 7, it is possible to avoid variations in the size of the fish and variations in the posture at the time of feeding. You can always cut at the optimum cutting position regardless of the harassment. Moreover, as shown in FIG. 6, when the fish F passes through the fish displacement driving means 6, even if the fish F is tilted upward or downward in the transport direction A, the displacement driving means 6 The back of the fish F is pressed upward, and as a result, the back of the fish F is pressed against the presser plate 17.
closely followed. Therefore, the fish body F has its center line C
is corrected to be parallel to the rotary round blade 7 and the presser plate 17. The fish F, which has assumed such a desired posture, faces the rotary round blade 7. Therefore, the harassing portion 70 of the fish F is cut by the horizontal rotary round blade 7 as shown by diagonal lines in FIG. In this way, it is possible to perform a reliable harassment cutting process on fish bodies with a high yield.

FIG. 7 is a sectional view taken from the cutting plane line - in FIG. 1, FIG. 8 is a sectional view taken from the cutting plane line - in FIG. 1, and FIG. 9 is a sectional view taken from the cutting plane line - in FIG. It is a sectional view seen from line -. Referring also to FIG. 1, the device 8 for removing fish internal organs, mefun, black skin, etc. includes a longitudinal scraping member 30 for removing fish internal organs, and high-pressure water is applied to the longitudinal scraping member 30. Supply water pressure source 31 and longitudinal scraping member 30
The holding means 32 is disposed above the fish and presses the back of the fish. A plurality of longitudinal scraping members 30 (in the present invention, five longitudinal scraping members 30 are arranged at intervals along the conveyance direction A)
) provided. A water pressure source 31 is individually connected to these longitudinal scraping members 30. In addition,
The longitudinal scraping member 30 is configured such that its displacement in the axial direction can be adjusted by manual operation.

With reference to FIGS. 8 and 9, scraping member 3
0 includes a cylindrical portion 31, a metal longitudinal plate-like body portion 34 connected to the upper end of the cylindrical portion 33 and extending vertically;
The longitudinal plate-like body portion 34 includes a scraped portion 35 formed at the upper end portion thereof. The scraping portion 35 has a uniform thickness, has a front surface and a back surface that are tapered upwardly, and has a flat top and a slightly upward curve toward the upstream side in the conveying direction A. It is formed at an angle. Side surfaces 35a and 35b of the scraping portion 35 are formed to correspond to the abdominal cavity of the fish body, and are configured so that the internal organs, mefun, black skin, etc. of the fish body F can be reliably removed as described later. ing. Said cylinder part 33
A first communication hole 36a is formed in the longitudinal plate-like body portion 34, a second communication hole 36b communicating with the first communication hole 36a is formed in the longitudinal plate-like body portion 34, and the scraped portion 35 is formed with a minute interval in the thickness direction. The second flow hole 36b is narrowed.
A nozzle hole 36c communicating with is formed. One end of this nozzle hole 36c communicates with the second communication hole 36b, and the other end communicates with the side portions 35a, 35b of the scraped portion 35.
It faces the air outlet 36d formed in the.
Therefore, the high-pressure water from the water pressure source 31 passes through the first communication hole 36a, the second communication hole 36b, and the nozzle hole 36c, and is ejected outward from the outlet 36d.

As shown in FIG. 7, guide rollers 40a and 40b are provided on both sides of the scraping portion 35. As shown in FIG. These guide rollers 40a, 40b have basically the same configuration as the guide rollers 19a, 19b described above, and corresponding parts are given the same reference numerals. What should be noted is this guide roller 40
Abdominal pressing guide rollers 41a and 41b for pressing the abdomen of the fish F are provided at the lower portions of a and 40b. The axial length l2 of the guide rollers 41a and 41b is selected to be a length that can sufficiently press the abdomen of the fish. This prevents the abdomen of the fish F from escaping due to the resistance of the scraping member 30 when the fish F whose abdomen has been cut open is transported to the scraping member 30.
The abdomen of the blade is pressed against the outer circumferential surfaces of the guide rollers 41a, 41b and the sides 35a, 35b of the scraped portion 35.

The pressing means 32 for pressing the back of the fish is basically similar to the fish displacement driving means 6 described above. That is, the support shaft 13a can be inserted through the guide tube 14a and through the cylindrical hole 12a in the support tube 11a. A presser plate 42 for pressing the back of the fish is attached to the lower end of the support tube 11. This presser plate 42 is formed in a shape corresponding to the shape of the back of the fish body. A spring 16a is disposed within the guide tube 14a, and this spring 16a covers the support shaft 13a, one end of which is fixed to the upper wall of the guide tube 14a, and the other end fixed to the flange 43 of the support tube 11a. . Therefore, due to the spring force of the spring 16a, the support tube 11
a, Therefore, the presser plate 42 is spring-biased downward. Such a configuration prevents the fish F from floating upward while the longitudinal scraping member 30 removes internal organs, black skin, mefun, and the like.

In addition, such a fish body back pressing means 32 is as follows:
Multiple pieces (three pieces in this example) along the conveyance direction A
provided.

The abdomen of the fish F, whose belly has been cut and whose abdomen has been opened, is pushed open in the left-right direction by an expanding member 51 (see FIG. 1), and then supplied to the internal organs removal device 8.
When the fish body F, whose abdomen has been spread out in the left-right direction, passes through the longitudinal scraping member 30, the holding plate 4
2 and the pressing guide rollers 41a and 41b, the inner surface of the abdominal cavity of the fish is brought into close contact with the outer side surface of the scraped portion 35, thereby removing the internal organs, mefun, and the vicinity of the base of the black skin of the fish. is scraped off smoothly. Therefore, since the internal organs and the like are scraped off while retaining their original shape, there is very little residue that scatters and adheres to the abdominal cavity. Therefore, the residue is completely washed away by the high pressure water jetted from the outlet 36d of the scraping portion 35.

In this embodiment, since the fish internal organs, black skin, and mefun are removed in five stages, more reliable processing can be achieved.

FIG. 10 is a sectional view taken along the section line - in FIG. 1. The pair of fillet knives 9a and 9b are attached so that their peripheral edges abut at the top and are opened downward at a certain angle. This contact portion functions to remove the middle bone of the fish body. Furthermore, this fillet knife 9
A presser plate 50 for pressing the back of the fish F is provided above and near the upstream side of the transport direction A than a and 9b. With this presser plate 50, the fillet knife 9
Before the middle bone of the fish body F is removed by a and 9b, the fish body is prevented from floating upward, and the middle bone is removed and the abdomen is cut open on both sides to ensure that it is processed into a so-called fillet state. Can be done. The fish body processed into a fillet state is carried out by a chute (not shown), moved to another location, and processed into seafood paste products such as kamaboko (kamaboko fish paste).

Effects As described above, according to the present invention, the positioning of the harrass cutting position of the fish body is performed before the fish body is supplied to the rotary cutting blade. Therefore, regardless of variations in the size of the fish and variations in the posture of the fish at the time of feeding, the harrass of the fish is always reliably cut at a constant harrass cutting position, and the harrass cutting process with improved yield without excess meat can be achieved. can be done.

[Brief explanation of drawings]

FIG. 1 is a front view of a harrass cutting device 1 showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a perspective view of the vicinity of the harrass cutting positioning means 5, and FIG. Fig. 5 is a sectional view taken from the cutting plane line - of Fig. 1, and Fig. 6 is a sectional view taken from the cutting plane line - of Fig.
The figure is a diagram to explain the operation of Harass cutting process.
Fig. 7 is a sectional view taken from the cutting plane line - in Fig. 1, Fig. 8 is a sectional view taken from the cutting plane line - in Fig. 1, and Fig. 9 is a sectional view taken from the cutting plane line - in Fig. 8. FIG. 10 is a sectional view taken along the section line - in FIG. 1. DESCRIPTION OF SYMBOLS 1... Halas cutting device, 2a, 2b... Conveyor belt, 6... Vertical displacement drive means, 7... Rotating round blade, 9... Fillet knife, 10... Guide plate, 1
0a...first slope, 10b...second slope, 1
1... Support tube, 12... Tube hole, 13... Support shaft, 1
4... Guide cylinder, 15... Support piece, 16... Spring,
17... Pressing plate, 17a... Contact surface, F... Fish body.

Claims (1)

[Scope of Claims] 1. A pair of conveyance belts that grip and convey both sides of a fish whose head has been cut off and whose abdomen is down and its back up; a holding plate for holding down the back of the fish; a means for driving the fish to move vertically so that the back comes into contact with the holding plate; a guide plate having a first slope that slopes upward as it goes downstream in the direction of transport; and a second slope that connects to the first slope and slopes downward as it goes downstream in the conveying direction; such a displacement driving means having a spring biased toward the displacement driving means; 1. A rotary round blade for cutting the fish body harassment, the rotary round blade having a rotational axis perpendicular to the transport direction.