JP2011015635A - Fish body-processing apparatus and blade for removing guts from fish body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fish body-processing apparatus capable of completely removing the guts of fish body from the peritoneal cavity of the fish body.SOLUTION: The fish body-processing apparatus includes a fish body-conveying mechanism, a belly part-cutting mechanism, a guide member, a pulley for removing the guts, and a timing mechanism. The pulley for removing the guts is a rotating body, has a plurality of the following plate-shaped blades 43 arranged in the radial shape by centering the rotation axis, and rakes out the guts from a cut line which is opened in the right and left directions by the outside ends in the radial directions of the blades 43. The blade 43 has a right side in the axis direction and a left side in the axis direction in right and left symmetrical shapes, and the shape in which the maximum width is present at the radial direction position at the inner diameter side than the outside end in the radial direction, and the width size is gradually reduced from the radial direction position at which the width is maximum to the inner diameter direction, and is rapidly reduced from the radial direction position at which the width is maximum to the outer diameter direction to reach the outside end in the radial direction. The timing mechanism returns the pulley for removing the guts to the original position after the fish body from which the guts are raked out has been conveyed forward.

Description

  The present invention relates to a fish processing apparatus for processing a large amount of fish for commercial use by performing an operation for removing internal organs from the fish at high speed.

  2. Description of the Related Art Conventionally, as a fish processing apparatus for processing three fish bodies such as salmon, a device described in, for example, Japanese Patent Application Laid-Open No. 8-70760 (Patent Document 1) is known. In the fish processing apparatus described in Patent Document 1, the internal organ removal pulley is inserted into the abdominal cavity of the fish body to remove the internal organs, and then the internal organ removal pulley is displaced in the direction of retreating from the conveyance path according to the shape of the fish body. Let This prevents the fillet from being damaged when the internal organs are removed, thereby reducing the quality or reducing the yield.

Japanese Patent Laid-Open No. 8-70760

  However, the conventional fish processing apparatus as described above still causes problems as described below. In other words, the conventional viscera removing pulley cannot completely remove the viscera from the abdominal cavity. For this reason, there was an inconvenience that part of the internal organs remained on both sides.

  FIG. 27 is an enlarged cross-sectional view showing a blade part of a conventional internal organ removal pulley. FIG. 28 is a cross-sectional photograph showing the abdominal cavity of the heel before removal of the viscera. FIG. 29 is a cross-sectional photograph of a heel showing a state in which a conventional visceral removal pulley is inserted into the abdominal cavity. FIG. 30 is a cross-sectional photograph showing the abdominal cavity from which the internal organs have been removed by the conventional internal organ removal pulley. As can be seen from FIG. 30, in the conventional fish processing apparatus, a part of the internal organs is attached to the abdominal cavity.

  The internal organs are not edible and should be removed completely. Nevertheless, quality cannot be ensured if the fish body to which the internal organs adhere is thus opened as an open fish, or processed down to two or three. For this reason, there is a trouble that a human must manually remove the remaining part of the internal organs. Alternatively, as described in Patent Document 1, it is necessary to add a step of removing the rest of the internal organs together with the abdominal bone with a pair of left and right abdominal cutting blades, and the abdominal cutting blade removes a part of the abdomen. As a result, the yield was poor.

  In view of the above circumstances, an object of the present invention is to provide a fish processing apparatus that can completely remove internal organs from the abdominal cavity in one step.

  For this purpose, the fish processing apparatus according to the present invention conveys the fish forward while holding the fish so that the back of the fish is up and the abdomen of the fish is down, with the head side of the fish in front and the tail fin side in back. A fish body transport mechanism, an abdominal incision mechanism that is disposed along the fish body transport mechanism and extends in the lateral direction of the abdomen of the fish body to be transported, and is disposed along the fish body transport mechanism. A guide member that is inserted into the cut and opened to the left and right, and a rotating body that is disposed between the guide members below the fish transport mechanism, the rotation axis extending in the left-right direction, and radially outward A plurality of plate-shaped cutting tools having a width dimension in the protruding axial direction and a thickness in the circumferential direction are arranged radially about the rotation axis, and the cutting tools are symmetrical on the left side in the axial direction and the right side in the axial direction, and have a radius Out of direction The maximum width at the radial position on the inner diameter side from the end, the width dimension gradually decreases from the radial position at the maximum width toward the inner diameter side, and the width at the outer diameter side from the radial position at the maximum width. The size of the blade sharply decreases to reach the radially outer end, and the radially outer end of the blade that extends in the left-right direction scrapes off the viscera from the cut, and the visceral removal pulley from the fish abdomen. Immediately after scraping off the internal organs, the internal organ removal pulley is displaced to a retracted position away from the fish body, and the internal organ removal pulley is returned to the original position after the fish body scraped off the internal organs is transported forward by the fish transport mechanism. And a timing mechanism.

  According to the present invention, the cutting tool disposed in the visceral removal pulley has a symmetrical shape on the left side in the axial direction and the right side in the axial direction, and has the maximum width at the radial position on the inner diameter side from the radially outer end, The width dimension gradually decreases from the radial position where the maximum width is reached toward the inner diameter side, and the width dimension decreases sharply toward the outer diameter side from the radial position where the maximum width is reached. Since the form to reach is exhibited, the radial direction outer side edge part of a cutting tool spreads in the left-right direction. Therefore, the internal organs can be completely removed from the abdominal cavity of the fish body.

  The contour shape of the cutting tool may be a shape in which the contour from the radial position at the maximum width toward the inner diameter side and the contour from the radial position at the maximum width toward the outer diameter side are angular like a polygon, A preferred embodiment is a rounded curved shape. According to this embodiment, the internal organs can be completely removed from the abdominal cavity of the fish body.

  The cutting tool may be one in which the left side in the axial direction and the right side in the axial direction are continuously formed integrally, but as a preferred embodiment, it is mounted on the left side in the axial direction and the right side in the axial direction. It is a pair of two shapes including the right side cutting tool. According to this embodiment, it becomes possible to easily attach or detach the cutting tool to the pulley body of the internal organ removal pulley from the outside in the axial direction, and the replacement work of the cutting tool becomes easy.

  As a more preferred embodiment, the right-side and left-side blades are adjusted in the axial interval by a spacer disposed between the blades. According to such an embodiment, it becomes possible to adjust the width dimension of the cutting tool to a desired value, and even when processing fish of different sizes, the internal organs are completely removed according to the size of the abdominal cavity of the fish can do.

  The fish body from which the internal organs have been completely removed by the fish processing apparatus of the present invention can be processed into any product form such as open fish, grated two pieces, or grated three pieces. For example, the fish processing apparatus is arranged along the fish transport mechanism, has two pairs of blades on the left and right sides, and divides the fish scraped off the internal organs into a left fillet, a middle bone, and a right fillet 3 A sheet lowering mechanism is further provided. According to this embodiment, a high-quality fillet can be produced by three-sheet lowering.

  The fish internal organ removal blade according to the present invention is a plate-like blade that extends in the longitudinal direction and extends in the width direction perpendicular to the longitudinal direction, and the distal end portion in the longitudinal direction is left and right with respect to the center line extending in the longitudinal direction. It is symmetrical and has a maximum width slightly proximal to the longitudinal tip, the width dimension gradually decreases from the longitudinal position toward the proximal side, and from the longitudinal position to the maximum width. The width direction dimension decreases rapidly toward the front end side, and the form which reaches the said front end is exhibited.

  According to this embodiment, the width direction dimension gradually decreases as the longitudinal direction distal end portion of the cutting tool moves from the longitudinal position where the maximum width is reached to the proximal end side, and the longitudinal direction is directed from the longitudinal direction position where the maximum width is reached toward the distal end side. As the width direction dimension decreases rapidly and reaches the distal end, the distal end portion in the longitudinal direction of the blade has a shape that extends in the left-right direction from the proximal end side in the longitudinal direction. Therefore, the internal organs can be completely removed from the abdominal cavity of the fish body.

  The blade for removing the internal organs of a fish body may be one in which the left side in the width direction and the right side in the width direction are continuously formed integrally. However, as a preferred embodiment, the blade in the width direction is a left side portion in the width direction. And a pair of blades formed by connecting the right-side portion in the width direction. According to this embodiment, it becomes possible to easily attach or detach the internal organ removal blade to the fish processing apparatus from both sides in the width direction.

  Thus, the present invention is attached to the internal organ removal pulley that scrapes off the internal organs of the fish body, extends in the longitudinal direction, and extends in the width direction perpendicular to the longitudinal direction. It has a symmetrical shape with respect to the center line extending in the direction, and has a maximum width slightly on the base end side from the front end in the longitudinal direction, and the width direction dimension gradually decreases from the longitudinal direction position where the maximum width is reached toward the base end side. Since the shape in the width direction sharply decreases and reaches the tip as it goes from the position in the longitudinal direction that becomes large toward the tip, the viscera can be completely removed from the abdominal cavity of the fish body. Accordingly, it is possible to completely remove the internal organs from the abdominal cavity in one step, and it is possible to produce a high-quality open fish, a high-quality two-grated, and a three-quality grated fillet.

1 is an overall side view schematically showing a main part of a fish processing apparatus according to one embodiment of the present invention. It is a whole top view which shows typically the principal part of the fish processing apparatus of the Example. It is a side view which expands and shows the pulley for internal organ removal of the Example. It is a cross-sectional view which expands and shows the part of a blade tool among the pulleys for internal organ removal. It is the whole figure which takes out and shows the cutting tool arranged and fixed to the pulley for internal organs removal. It is a figure which takes out and shows the left half of the blade tool of FIG. 5, (a) is a front view, (b) is a rear view. It is a figure which takes out and shows the left half of the blade tool of FIG. 5, Comprising: (a) is a left view, (b) is a right view. It is a figure which takes out and shows the left half of the blade tool of FIG. 5, Comprising: (a) is a top view, (b) is a bottom view. (A) is an overall view of a cutting tool according to a modification of the present invention, and (b) is an overall view of a cutting tool according to another modification of the present invention. It is a figure of the blade tool of Drawing 9 (b), (a) is a front view of a blade tool, and (b) is a rear view of a blade tool. FIG. 9B is a view of the cutting tool in FIG. 9B, wherein FIG. 9A is a left side view of the cutting tool, and FIG. 9B is a right side view of the cutting tool. It is a figure of the blade tool of Drawing 9 (a), (a) is a top view of a blade tool, and (b) is a bottom view of a blade tool. It is a cross-sectional view of the fish body processed by the fish body processing apparatus of FIG. 1, and shows the state before a process. It is a cross-sectional view of the fish processed by the fish processing apparatus of FIG. 1, and shows a state in which the fish is being transported by the fish transporting mechanism of the fish processing apparatus. It is a cross-sectional view of the fish processed by the fish processing apparatus of FIG. 1, and shows a state in which a cut is made in the abdomen by the abdominal incision mechanism. It is a cross-sectional view of the fish body processed by the fish body processing apparatus of FIG. 1, and shows a state where the cuts in the abdomen are opened in the left-right direction. It is a cross-sectional view of the fish processed by the fish processing apparatus of FIG. 1, and shows a state in which the blade of the pulley for removing the internal organs is inserted into the abdominal cavity and is in contact with the internal organs. It is a cross-sectional view of the fish body processed by the fish body processing apparatus of FIG. 1, and shows a state in which the internal organs are completely removed from the abdominal cavity. It is a cross-sectional view of the fish processed by the fish processing apparatus of FIG. 1, and shows a state where the abdominal cavity is guided by the lower guide member. It is a cross-sectional view of the fish body processed by the fish body processing apparatus of FIG. 1, and shows a state in which the fish body is divided into three parts by a three-sheet lowering mechanism. It is a photograph showing a wrinkle to be processed, (a) is a whole side photo, (b) is a whole side photo showing a state where the wrinkle shown in (a) is cut at a plurality of locations in the head-tail direction, (C) is the cross-sectional photograph in each cutting location. It is the whole side photograph of the cocoon to be processed. FIG. 23 is a photograph showing the head, tail fin, abdominal cavity, and internal organs of the eyelid in FIG. 22. It is a cross-sectional photograph which shows the abdominal part of the eyelid before a visceral removal. It is a cross-sectional photograph which shows the state in which the blade tool of the pulley for internal organ removal which becomes an Example of this invention was inserted in the abdominal cavity shown in FIG. It is a cross-sectional photograph which shows the abdominal cavity from which the internal organs were removed with the blade tool shown in FIG. It is a cross-sectional view which expands and shows the pulley for internal organ removal of a prior art example in the part of a blade tool. It is a cross-sectional photograph which shows the abdominal cavity of the eyelid before a visceral removal. It is a cross-sectional photograph which shows the state by which the pulley (blade tool) for the internal organ removal of the prior art example was inserted in the abdominal cavity shown in FIG. It is a cross-sectional photograph which shows the abdominal cavity from which the internal organ was removed with the pulley for internal organ removal of the prior art example.

  Hereinafter, embodiments of the present invention will be described in detail based on examples shown in the drawings.

  FIG. 1 is an overall side view schematically showing a main part of a fish processing apparatus according to one embodiment of the present invention. FIG. 2 is an overall plan view schematically showing a main part of the fish processing apparatus of the embodiment. In order to facilitate understanding of the invention, in FIG. 1 and FIG. 2, each mechanism that is a component of the invention is indicated by a solid line or a broken line, and an electric motor, a base, a power line, a feed pulley, etc. that do not directly act as a component of the invention Is done.

  The fish processing apparatus 11 includes a fish body transporting mechanism 12 for transporting the fish body 101, an abdominal incision mechanism 22 for making a cut in the abdomen of the fish body 101, a guide member 32 for holding the abdominal incision left and right, The internal organ removal pulley 42 that scrapes off the internal organs from the cut, the timing mechanism 52 that temporarily moves the internal organ removal pulley to the retracted position, and the fish body scraped off the internal organs into a right fillet, a middle bone, and a left fillet And a three-sheet lowering mechanism 72.

  The fish processing apparatus 11 completely removes the internal organs from the fish body 101 to be processed and lowers three pieces. The fish body 101 is a frozen salmon or a ginger. Other fish species can also be processed. Each mechanism of the fish processing apparatus 11 will be described below.

  The fish transport mechanism 12 is a pair of two belt mechanisms in which endless transport belts 13 are arranged on the left and right, respectively. The conveyor belt 13 is wound between an inlet pulley 15 provided at the fish inlet 14 of the fish processing apparatus 11 and an outlet pulley 17 provided at the fish outlet 16 of the fish processing apparatus 11, and extends in the horizontal direction. The fish body processing apparatus 11 has a belt width in the height direction. The inlet pulley 15 and the outlet pulley 17 are rotatably supported so that the rotation axes of these pulleys extend in the vertical direction. Although not shown, the fish transport mechanism 12 supports the transport belt 13 by being disposed between the inlet pulley 15 and the outlet pulley 17 and a plurality of motors that rotationally drive the inlet pulley 15 or the outlet pulley 17. And at least a feed pulley.

  The transport belt 13 and the pulleys 15 and 17 of the fish transport mechanism 12 are arranged one by one on the left and right sides of the horizontal transport path that connects the fish inlet 14 and the fish outlet 16 in a straight line. The left belt and pulley have a suffix l, and the right belt and pulley have a suffix r. In the following description, the suffix l and the suffix r are similarly used as necessary. . The left pulley 15l and the right pulley 15r rotate reversely to each other as indicated by arrows in FIG. Further, the left pulley 17l and the right pulley 17r rotate reversely to each other as indicated by arrows in FIG. Thereby, the left belt 13l and the right belt 13r facing each other advance in the same direction at the same speed. The left pulley 17 l and the right pulley 17 r sandwich the fish body 101 inserted from the fish inlet 14 from both the left and right sides, and convey the fish body 101 to the fish outlet 16 along the conveyance path on the conveyance belt 13.

  Thus, the fish transport mechanism 12 transports the fish 101 forward with the head side of the fish body 101 as the front and the tail fin side as the back, while holding the fish body 101 up and the fish belly down. In addition, since the space | interval of the left belt 13l and the right belt 13r is suitably hold | maintained with the feed pulley, the fish body 101 is clamped by the conveyance belt 13 with the optimal holding force.

  Below the conveying belt 13, a bowl-shaped inlet guide member 18 is arranged in parallel along the conveying path. The inlet guide member 18 extends from the inlet pulley 15 to the abdominal incision mechanism 22. Then, the front end 19 of the inlet guide member 18 branches left and right by the abdominal incision mechanism 22. The left guide portion 19l and the right guide portion 19r of the front end portion 19 of the entrance guide member extend along the conveyance path on the left and right sides of the rotary round blade 23 of the abdominal incision mechanism 22, respectively. Since the fish body 101 being transported is supported on the inlet guide member 18, it does not fall downward.

  The abdominal incision mechanism 22 disposed along the fish body transport mechanism 12 includes a rotating round blade 23, a motor (not shown) that drives the rotating round blade 23, and an upper guide member 24. The rotary round blade 23 is disposed below the transport belt 13 and is supported so that the rotation axis is in the left-right direction perpendicular to the transport direction in plan view. The upper part of the outer peripheral edge of the rotary round blade 23 is located in the vicinity of the transport path, that is, the transport belt 13.

  The upper guide member 24 extends in the front-rear direction along the conveyance path, and is disposed above the rotating round blade 23. Then, the back of the fish body 101 is guided in the transport direction, and the fish body 101 is prevented from warping from the transport belt 13.

  The rotating round blade 23 rotates at a high speed. When the fish body 101 that has been cut from the head and tail fin and is conveyed from the fish body inlet 14 passes through the vicinity of the rotating round blade 23 by the fish conveying mechanism 12, the rotating round blade 23 is rotated. The upper outer periphery of 23 abuts on the abdomen of the fish body 101, and a cut extending in the front-rear direction is made at the center in the left-right direction of the abdomen.

  A plate-shaped guide member 32 is disposed in parallel with the conveyance path at a position adjacent to the lower portion of the conveyance belt 13. Thus, the guide member 32 arranged along the fish transport mechanism 12 extends forward in the transport direction from the transport direction position adjacent to the upper outer periphery of the rotary round blade 23, and the front end 33 of the guide member 32 is It is handed over to a visceral removal pulley 42 described later. The front end portion 33 of the guide member 32 branches to the left and right, and the left guide portion 33l and the right guide portion 33r of the branched front end portion 33 face each other at substantially the same interval as the interval between the left belt 13l and the right belt 13r. The upper part of the outer peripheral edge of the visceral removal pulley 42 is disposed in the gap between the left guide part 33l and the right guide part 33r.

  When the abdomen of the fish body 101 cut by the abdominal incision mechanism 22 is transported on the guide member 32 by the fish transport mechanism 12, the guide member 32 is inserted into the abdomen break of the fish body 101, and the cut is cut during the transport. Hold open to the left and right.

  Further, an upper guide member 34 is disposed in parallel with the conveyance path at a position adjacent to the upper portion of the conveyance belt 13. The upper guide member 34 is pivotally supported by a fulcrum 35 at the rear part in the transport direction, and can be rotated around the axis of the fulcrum 35 extending perpendicular to the transport direction in plan view. The rear end portion in the transport direction of the upper guide member 34 faces the guide member 32 described above, and the front end portion in the transport direction of the upper guide member 34 extends to the transport direction position facing the internal organ removal pulley 42. The upper guide member 34 presses the back portion of the fish body 101 sandwiched between the transport belts 13 downward to prevent the fish body 101 from deviating from the transport belt 13.

  FIG. 3 is an enlarged view of the periphery of the visceral removal pulley 42 when the fish processing apparatus 11 is viewed from the side. FIG. 4 is a cross-sectional view of the internal organ removal pulley 42 and shows a state in which the cutting tool 43 attached to the pulley is viewed from the circumferential direction of the pulley. FIG. 5 is an overall view showing a pair of two symmetrical blade tools 43 taken out from the left and right, FIG. 6 is a view showing the left half of the blade tool 43 of FIG. 5, (a) is a front view of the blade tool, (b) ) Is a rear view of the blade. FIGS. 7A and 7B are views showing the left half of the cutting tool 43 of FIG. 5, wherein FIG. 7A is a left side view of the cutting tool, and FIG. 7B is a right side view of the cutting tool. 8A and 8B are views showing the left half of the cutting tool 43 of FIG. 5, wherein FIG. 8A is a plan view of the cutting tool, and FIG. 8B is a bottom view of the cutting tool.

  The internal organ removal pulley 42 is a rotating body disposed below the fish transport mechanism 12 and is supported so that the rotation axis is in the left-right direction perpendicular to the transport direction in plan view. Further, the rear part in the transport direction in the upper outer periphery of the visceral removal pulley 42 is disposed between the left guide part 33l and the right guide part 33r.

  A plurality of plate-like cutting tools 43 that protrude outward in the radial direction, have a width dimension in the axial direction, and have a thickness in the circumferential direction are radially arranged on the internal organ removal pulley 42 with the rotational axis as the center. The internal organ removal pulley 42 rotates at a high speed in the direction indicated by the arrow β in FIG. 3, and the cutting tool 43 passes through the conveyance path in the direction opposite to the conveyance direction α of the conveyance belt 13 at the upper outer periphery of the internal organ removal pulley 42. The internal organs are completely scraped from the cuts in the abdomen where the radially outer ends of the cutting tools 43 are opened to the left and right. The internal organs scraped off fall downward from between the internal organ removal pulley 42 and the abdominal incision mechanism 22.

  As shown in FIG. 4, the internal organ removal pulley 42 includes a driven pulley 45 that is rotatably supported along a rotation axis represented by a one-dot chain line, and two pieces that are coaxially fixed to the outer periphery of the driven pulley 45. Discs 44l, 44r, a ring-shaped spacer 46 for defining an axial interval between the two discs 44l, 44r arranged on the left and right sides, and a left cutting tool 43l attached and fixed to the left surface of the left disc 44l. And a right cutting tool 43r attached and fixed to the right surface of the right disk 44r.

  The plate-shaped left-side cutting tool 43l and right-side cutting tool 43r have a symmetrical shape, are mounted and fixed at the same circumferential position, constitute a common plane, and form a pair of left and right cutting tools 43. The left cutting tool 43l and the right cutting tool 43r are connected to each other via a disc 44l, a driven pulley 45, and a disc 44r. The shape of the cutting tool 43 will be described by taking the right cutting tool 43r as a representative. As shown in FIG. 5, the shape of the cutting tool 43 has the maximum width at the radial position 43e on the inner diameter side with respect to the radially outer end 43f. The width dimension gradually decreases toward the radial position 43d on the inner diameter side. On the inner diameter side of the radial position 43d, a side edge 43c having a constant width direction is formed up to the radially inner end 43b.

  Further, the shape of the cutting tool 43 takes a form in which the width dimension decreases rapidly from the radial position 43e which is the maximum width toward the outer diameter side and reaches the radially outer end 43f.

  According to the cutting tool 43 of this embodiment, since the radially outer end portion of the cutting tool 43 has substantially the same shape as the cross-sectional shape of the abdominal cavity of the fish body 101, the internal organs can be completely scraped from the abdominal cavity.

  The width dimension of the blade 43 gradually decreases from the radial position 43e having the maximum width toward the radial position 43d on the inner diameter side, and the width dimension increases from the radial position 43e having the maximum width toward the outer diameter side. In the above description that the shape suddenly decreases and reaches the radially outer end 43f, the width dimension gradually decreases and the width dimension decreases rapidly. The boundary is the radial position 43e that is the maximum width. It should be understood as a relative comparison between the radially inner diameter side and the radially outer diameter side.

  Therefore, when the fish 101 to be processed is changed and the fish 101 having a different abdominal cross section is processed again, the fish processing apparatus 11 of the present embodiment is replaced by replacing the blade 43 with a blade that matches the abdominal cavity of the new fish. Applicable to other fish species. The width of the blade after the replacement also gradually decreases from the radial position at the maximum width toward the radial position on the inner diameter side, and the width dimension sharply increases from the radial position at the maximum width toward the outer diameter side. The shape of the blade 43 is preferably long in the radial direction and short in the left-right direction if the cross section of the abdominal cavity is long and short in the left-right direction.

  Further, the shape of the cutting tool 43 is a curved shape in which the contour from the radial position 43e, which is the maximum width, toward the radial position 43d on the inner diameter side is rounded. In addition, the contour from the radial position 43e, which is the maximum width, toward the radially outer end 43f is a rounded curved shape.

  According to the cutting tool 43 of this embodiment, since the radially outer end of the cutting tool 43 is more similar to the cross-sectional shape of the abdominal cavity of the fish body 101, the internal organs can be completely scraped without damaging the abdominal cavity. .

  And it becomes sharper by making the edge of the front (FIG. 6 (a)) and thickness side surface (FIG. 7 (a)) of the cutting tool 43 which comprises a right angle stand. As a result, even at the part of the abdomen where the bone of the chest fin reaches the abdominal cavity, the bone of the chest fin can be cut and the internal organs can be completely removed. In particular, durability can be improved by hardening the contour from the radially outer end 43f through the radial position 43e to the radial position 43d by metal surface treatment and raising the edge.

  Note that the inner contour from the radially outer end 43f to the inner point 43g on the inner side in the left-right direction is a rounded curved shape. The inner contour from the inner point 43g toward the inner side in the radial direction is a linear shape extending in the radial direction. The inner contour forms a step 43i that is recessed radially outward and further outward in the left-right direction than the inner point 43g. A mounting portion 43a is bent and formed in a direction perpendicular to the right cutting tool 43r at the radially inner end of the step 43i. Two bolt holes 43h are provided in the mounting portion 43a. The right cutting tool 43r is bolted to the right disc 44r by fitting the mounting portion 43a along the right surface of the right disc 44r and screwing the bolt into the bolt hole 43h. To do. The same applies to the left cutting tool 43l.

  According to the cutting tool 43 of the present embodiment, since the left and right cutting tools 43l and 43r are a pair of left and right components, by replacing the spacer 46 with another spacer having a different left and right thickness (axial thickness), The width dimension of the cutting tool 43 can be adjusted. Therefore, the internal organs can be completely scraped according to the body length of the fish body 101 and the size of the abdominal cavity.

  FIG. 9A is an overall view showing a modification of the cutting tool 43, and FIG. 9B is an overall view showing another modification of the cutting tool 43. As shown in FIG. 10A and 10B are diagrams showing the blade tool 43 of FIG. 9B, wherein FIG. 10A is a front view of the blade tool, and FIG. 10B is a rear view of the blade tool. FIGS. 11A and 11B are views showing the cutting tool 43 in FIG. 9B, where FIG. 11A is a left side view of the cutting tool, and FIG. 11B is a right side view of the cutting tool. 12A and 12B are views showing the blade tool 43 of FIG. 9B, wherein FIG. 12A is a plan view of the blade tool, and FIG. 12B is a bottom view of the blade tool.

  The blade tool 43 of the modified example and the blade tool 43 of the other modified example have a left-right symmetric shape in which the radially outer end extends in the left-right direction rather than the radially inner side, as in the blade tool shown in FIGS. In addition, in the state where neither the cutting tool 43 of the modified example nor the cutting tool 43 of the other modified example is attached and fixed to the internal organ removal pulley 42 as in the cutting tool shown in FIGS. It is a left-right symmetric shape spreading in the left-right direction from the direction base end side. For this reason, in FIG. 9, the same outer side shape in the left-right direction is denoted by the same reference numeral and description thereof is omitted.

  Since the blade tool 43 of the modified example and the blade tool 43 of another modified example are one blade tool in which the left side and the right side are continuously formed integrally, the shape on the inner side in the left-right direction is different from the blade tool shown in FIG.

  The cutting tool 43 of the modified example shown in FIG. 9A is formed with a slit 43j extending radially inward from the radially outer end 43f at the center position in the left-right direction.

On the other hand, the cutting tool 43 of the modified example shown in FIG. 9B has a bulging shape in which the radially outer end 43j is rounded and does not have a slit-shaped gap. In addition, in the blade tool 43 shown in FIGS. 4 and 5, there is a gap between the left blade tool 43l and the right blade tool 43r. The gap extends radially inward from the radially outer end 43f at the center position in the left-right direction of the cutting tool 43.
Even with the blade tool 43 of this modified example, the internal organs can be completely scraped from the abdominal cavity of the fish body 101.

  Immediately after the internal organ removal pulley 42 scrapes the internal organs from the abdomen of the fish body 101, the timing mechanism 52 displaces the internal organ removal pulley 42 to a retracted position away from the fish body 101, and the internal fish body 101 scraped off the internal organs is removed from the fish body 101. After being transported forward by the transport mechanism 12, the internal organ removal pulley 42 is returned to the original position. Similarly, the timing mechanism 52 repeats the retracting operation of the internal organ removal pulley 42 for the fish that is transported next.

  The timing mechanism 52 will be described. The internal organ removal pulley 42 is supported by one end of an L-shaped arm 53. A central portion of the arm 53 is rotatably supported by a shaft 54 extending in the left-right direction. The other end of the arm 53 is connected to the actuator 55. In addition, a sensor (not shown) for detecting the passage of the fish 101 is attached to a feed pulley (not shown) that supports the conveyor belt 13 along the conveyance path in the vicinity of the visceral removal pulley 42. A detection signal is output to the actuator 55 during a period from when it reaches the internal organ removal pulley 42 until it moves away. The actuator 55 is a cylinder mechanism that expands and contracts by air pressure, or another mechanism that mechanically expands and contracts, and rotates the arm 53 while receiving a detection signal from the sensor, thereby causing the visceral removal pulley 42 to move. Temporarily move to the retracted position in the direction of arrow γ.

  Thereby, the internal organ removal pulley 42 scrapes only the internal organs of the fish body 101 and does not damage the fish body 101 on the tail fin side from the internal organs. According to the timing mechanism 52, the yield of the fish body 101 is improved.

  As for the arm 53, a drive pulley 56 is pivotally supported on the shaft 54, and the drive pulley 56 is coupled to a drive motor (not shown). An endless driving belt 57 is wound around the driving pulley 56 and the driven pulley 45. Thus, the internal organ removal pulley 42 is driven to rotate by the drive motor via the drive belt 57.

  A three-sheet lowering mechanism 72 that divides the fish body 101 into three is provided in front of the internal organ removal pulley 42 in the transport direction, and a lower guide member is provided between the internal organ removal pulley 42 and the three-sheet lowering mechanism 72. 61 and an upper guide member 62 are arranged. The lower guide member 61 is a member that is provided below the conveyor belt 13, extends along the conveyance path, has a width in the vertical direction, and has a thickness in the left-right direction, and the internal organs are completely removed. The fish body 101 is inserted along the abdominal cavity of the fish body 101 to hold the fish body 101 in a straight posture in the front-rear direction. The upper guide member 62 is provided above the transport belt 13 and extends along the transport path, guides the back of the fish body 101 in the transport direction, and prevents the fish body 101 from warping out of the transport belt 13.

  The three-sheet lowering mechanism 72 disposed along the fish transport mechanism 12 has fillet cutting blades 73 on the left and right sides. The fillet cutting blade 73 is also a rotating round blade, but has a larger diameter than the rotating round blade 23. The fillet cutting blade 73 is disposed below the transport belt 13 and is supported so that the rotation axis is in the left-right direction perpendicular to the transport direction in plan view. The upper part of the outer peripheral edge of the fillet cutting blade 73 is located in the gap between the opposing left belt 13l and right belt 13r and protrudes above the left and right belts 13l and 13r.

  The positional relationship between the left cutting blade 73l and the right cutting blade 73r is substantially parallel, but strictly speaking, the relative distance between the lower portion of the left cutting blade 73l and the lower portion of the right cutting blade 73r is the largest, and the relative distance increases toward the upper portion. The relative distance between the upper portion of the left cutting blade 73l and the upper portion of the right cutting blade 73r is the smallest. For this reason, when viewed from the conveying direction, the pair of left and right fillet cutting blades 73 form a “C”.

  When the pair of left and right fillet cutting blades 73 rotate at high speed, when the fish body 101 is transported by the transport belt 13 to the three-sheet lowering mechanism 72, the left cutting blade 73l cuts the left fillet 101l from the fish body 101 and the right The cutting blade 73r cuts the right fillet 101r from the fish body 101. Thus, the three-sheet lowering mechanism 72 divides the fish body 101 scraped off from the internal organs into a right fillet 101l, a middle bone 101c, and a left fillet 101r.

  Then, the middle bone 101c falls downward from between the pair of left and right fillet cutting blades 73. The right fillet 101l and the left fillet 101r are conveyed forward from the three-sheet lowering mechanism 72 by the conveyor belt 13 in the conveying direction while being overlapped with each other, and discharged from the fish outlet 16.

  Next, functions of the fish processing apparatus shown in FIGS. 1 and 2 will be described.

  A frozen salmon is assumed as the fish body 101 to be processed. At the time of processing by the fish processing apparatus 11, the temperature of the frozen salmon is controlled from minus 4 degrees to minus 2 degrees, and the head is excised in advance. Here, the tail fin may be excised. FIG. 13 is a cross-sectional view of the abdomen of the frozen salmon (fish body 101), showing a state before processing. In FIG. 13, 101a indicates the back, 101b indicates the abdomen, 101n indicates the internal organs, and 101c indicates the middle bone.

  First, the head and tail directions of the fish body 101 are placed in a horizontal posture so that the back of the fish body 101 is up and the abdomen of the fish body 101 is down, and the head side of the fish body 101 is inserted into the fish body inlet 14 of the fish body processing apparatus 11. . The fish transport mechanism 12 holds the fish 101 in the left-right direction with a pair of transport belts 13 and transports the head 101 forward and the tail fin side backward while holding the fish 101 in such a posture. FIG. 14 is a cross-sectional view of the fish body 101 taken along the line XIV-XIV in FIG. 1 and viewed from the direction of the arrow, and shows a state in which the fish body transport mechanism 12 is transporting. In FIG. 14, the fish body 101 is sandwiched between the rubber left belt 13 l and the right belt 13 r, and the abdomen 101 b is supported by the inlet guide member 18.

  Next, when the fish body 101 is transported forward in the transport direction from the fish body inlet 14 and passes through the abdominal incision mechanism 22, a cut extending in the front and rear is made in the abdomen by the rotating round blade 23 that rotates at high speed. This cut is located at the center position in the left-right direction of the abdomen of the fish body, that is, the stomach fin on the opposite side to the dorsal fin in the vertical direction. The cut extends in the front-rear direction, that is, the head-to-tail direction of the fish body 101. 15 is a cross-sectional view of the fish body 101 taken along XV-XV in FIG. 1 and viewed from the direction of the arrow. The fish body 101 is sandwiched between the left belt 13l and the right belt 13r, and the abdomen 101b is the left and right left guide portions. The abdomen is cut by the rotating round blade 23, supported by 19l and the right guide part 19r.

  Next, when the fish body 101 is conveyed forward of the abdominal incision mechanism 22 and passes through the guide member 32, the guide member 32 is inserted into the abdominal cut, and the abdominal cut is opened to the left and right by the guide member 32. Put into a state. 16 is a cross-sectional view of the fish body 101 taken along the line XVI-XVI of FIG. 1 and viewed from the direction of the arrow, and shows a state in which the abdominal cut is opened in the left-right direction. In FIG. 16, the fish body 101 is sandwiched between the left belt 13l and the right belt 13r, the back portion 101a is guided by the upper guide member 34, and the abdominal cut is outside the left guide portion 33l and the right guide portion 33r of the guide member 32 in the left-right direction. Open to.

  Next, when the fish body 101 is transported forward of the guide member 32 in the transport direction and passes through the visceral removal pulley 42, the blade tool 43 attached and fixed to the visceral removal pulley 42 is inserted into the abdominal section opened to the left and right. Immediately after the internal organs are scraped from the abdominal cut by the blade 43 of the internal organ removal pulley 42 that rotates at high speed, and the internal organ removal pulley 42 scrapes the internal organs from the abdomen of the fish body 101, the timing mechanism 52 pulls the internal organs removal pulley. 42 is displaced to the retreat position away from the fish body 101.

  17 is a cross-sectional view of the fish body 101 taken along the line XVII-XVII of FIG. 1 and viewed from the direction of the arrow. The fish body 101 is sandwiched between the left belt 13l and the right belt 13r, and the back portion 101a is attached to the upper guide member 34. The cut of the abdomen is guided and opened to the outside in the left-right direction of the left guide part 33l and the right guide part 33r, and the radially outer end of the blade tool 43 of the internal organ removal pulley 42 that scrapes the internal organs from the abdominal cavity abuts on the internal organs 101n. Yes.

  18 is a cross-sectional view of the fish body 101 taken along the line XVIII-XVIII of FIG. 1 and viewed from the direction of the arrow. The fish body 101 is sandwiched between the left belt 13l and the right belt 13r, and the back portion 101a is attached to the upper guide member 34. The internal organs are completely scraped from the abdominal cavity 101e by the cutting tool 43.

  Next, when the fish body 101 is transported forward in the transport direction from the internal organ removal pulley 42 and passes through the lower guide member 61 and the upper guide member 62, the lower guide member 61 is inserted through the abdominal cut and the abdominal cavity is inserted. It is supported in the front-rear direction and is held in a straight posture in the front-rear direction by the lower guide member 61. In addition, the timing mechanism 52 is provided for returning the internal organ removal pulley 42 from the retracted position to the original position and removing the internal organs from the next fish body conveyed from the rear in the conveyance direction.

  19 is a cross-sectional view of the fish body 101 taken along XIX-XIX in FIG. 1 and viewed from the direction of the arrow. The fish body 101 is sandwiched between the left belt 13l and the right belt 13r, and the back portion 101a is fixed to the upper guide member 62. The abdominal cavity 101e is guided to the lower guide member 61.

  Next, when the fish body 101 scraped off the internal organs is transported forward in the transport direction from the lower guide member 61 and the upper guide member 62 and passes through the three-sheet lowering mechanism 72, a pair of left and right fillets from the front side in the transport direction. The cutting blade 73 is inserted, and the fillet cutting blade 73 is divided into a left fillet 101l, a middle bone 101c, and a right fillet 101r. FIG. 20 is a cross-sectional view of the fish body 101 taken along the line XX-XX in FIG. 1 and viewed from the direction of the arrow. The fish body 101 sandwiched between the left belt 13l and the right belt 13r is 101c and the left fillet 101l are cut, and the right cutting blade 73r is cut into the middle bone 101c and the right fillet 101r.

  Of the fish body 101 thus divided into three, the left fillet 101l and the right fillet 101r are transported forward in the transport direction from the three-sheet lowering mechanism 72 and are discharged from the fish outlet 16 by the transport belt 13.

  Using the fish processing apparatus 11 of this example, three frozen salmons were processed, and a confirmation test was conducted to remove internal organs from the frozen salmon using a conventional fish processing apparatus, and the results of both were compared.

  FIG. 21 is a diagram of a cocoon to be processed, wherein (a) is an overall side photo, (b) is an overall side photo showing a state in which the cocoon is cut at a plurality of locations in the head-to-tail direction, These are cross-sectional photographs at the respective cut portions. From this figure, it is understood that the abdominal cavity and internal organs of the heel have a substantially circular cross section at the thickest head-tail direction, and become a longitudinally long cross section toward the tail fin.

  FIG. 22 is a photograph of the entire side of the cocoon to be processed. FIG. 23 is a photograph showing the head, tail fin, abdominal cavity, and internal organs of FIG.

  FIG. 24 is a cross-sectional photograph showing the abdomen of the heel before removal of the internal organs. FIG. 25 is a cross-sectional photograph showing a state in which the cutting tool of the visceral removal pulley according to the embodiment of the present invention is inserted into the abdominal cavity shown in FIG. 26 is a cross-sectional photograph showing the abdominal cavity from which the internal organs have been removed by the blade shown in FIG. According to the fish processing apparatus 11 of this example, it is possible to completely scrape the internal organs from the abdominal cavity, and it is understood that the internal organs are not attached to the left and right side surfaces of the abdominal cavity.

  FIG. 27 is a cross-sectional view showing a conventional internal organ removal pulley in an enlarged manner at the cutting tool portion. The internal organ removal pulley of the conventional example also includes a driven pulley P that is rotatably supported along a rotation axis represented by a one-dot chain line, a disc R that is coaxially fixed to the outer periphery of the driven pulley P, and a disc A plurality of blades H arranged radially on the outer peripheral edge of R are provided. The blade H of the conventional example is also a bilaterally symmetric plate-like member that extends in the radial direction, has a width in the axial direction (left-right direction), and has a thickness in the circumferential direction.

  However, the shape of the outer edge in the left-right direction of the conventional cutting tool H is different from the present invention in that it is a tapered shape. That is, a linear side edge Hb is formed from the radially inner end Ha to the radially outer position Hc, and the width dimension is constant, and from the position Hc to the radially outer end Hd, as it goes to the radially outer end. The width dimension becomes smaller.

  FIG. 28 is a cross-sectional photograph showing the abdomen of the heel before removal of the internal organs. FIG. 29 is a cross-sectional photograph showing a state in which the conventional cutting tool H is inserted into the abdominal cavity shown in FIG. 30 is a cross-sectional photograph showing the abdominal cavity from which the internal organs have been removed by the cutting tool H shown in FIG. According to the conventional internal organ removal pulley, the internal organs can be scraped, but the internal organs remain on the left and right sides of the abdominal cavity and cannot be completely removed.

  According to the cutting tool 43 according to the embodiment of the present invention, it is possible to completely remove the internal organs from the fish body, and the fact that it is far superior to the cutting tool H of the conventional example is compared with FIG. 26 and FIG. 30 described above. It is clear by that.

  Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The fish processing apparatus according to the present invention is advantageously used in the fishery industry and the food processing industry.

  DESCRIPTION OF SYMBOLS 11 Fish body processing apparatus, 12 Fish body conveyance mechanism, 13 Conveyance belt, 13l Left belt, 13r Right belt, 18 Inlet guide member, 19 22 Abdominal incision mechanism, 23 Rotary round blade, 24 Upper guide member, 32 Guide member, 33 Guide member Front end, 34 Upper guide member, 35 Support point, 42 Internal organ removal pulley, 43 Cutting tool, 43a Mounting portion, 43b Radial inner end, 43c Side edge, 43e Radial position with maximum width, 43f Radial outer end, 43g left and right inner point, 43h bolt hole, 43i step, 43j slit, 43k radial outer end, 43l left blade, 43r right blade, 44l disk, 44r disk, 45 driven pulley, 46 spacer, 52 timing mechanism, 53 arms, 54 axes, 55 actuators, 56 drive pulleys, 7 Drive belt, 61 Lower guide member, 62 Upper guide member, 72 Three-sheet lowering mechanism, 73 Fillet cutting blade, 73l Left cutting blade, 73r Right cutting blade, 101 Fish body, 101a Back, 101b Abdomen, 101c Middle bone, 101e Abdominal cavity, 101n internal organs, 101l left side fillet, 101r right side fillet.

Claims (7)

A fish body transport mechanism that transports the fish body forward while holding the fish's back side up and the fish's belly side down while holding the fish's head side forward and the tail fin side behind,
An abdominal incision mechanism that is arranged along the fish body transport mechanism and cuts a slit extending back and forth at the center position in the left-right direction of the abdomen of the fish body to be transported;
A guide member that is arranged along the fish body transport mechanism and is inserted into the cut of the fish abdomen to open the cut left and right; and
A rotating body disposed between the guide members below the fish body transport mechanism, the rotation axis extending in the left-right direction, projecting outward in the radial direction, having a width dimension in the axial direction, and having a thickness in the circumferential direction A plurality of blades are radially arranged around the rotation axis, and the blades are symmetrical on the left side in the axial direction and on the right side in the axial direction, and have the maximum width at the radial position on the inner diameter side from the radially outer end. The width dimension gradually decreases from the radial position at the maximum width toward the inner diameter side, and the width dimension decreases rapidly from the radial position at the maximum width toward the outer diameter side. A blade for removing the viscera from which the radially outer end extending in the left-right direction of these blades scrapes the viscera from the cut,
Immediately after the internal organ removal pulley scrapes the internal organs from the abdomen of the fish body, the internal organ removal pulley is displaced to a retracted position away from the fish body, and the fish body scraped off the internal organs is conveyed forward by the fish body transport mechanism. And a timing mechanism for returning the internal organ removal pulley to the original position after being done.   2. The blade according to claim 1, wherein a contour extending from the radial position corresponding to the maximum width toward the inner diameter side and a contour extending from the radial position corresponding to the maximum width toward the outer diameter side have a rounded curved shape. Fish body processing equipment.   The fish processing apparatus according to claim 1, wherein the blade includes a left blade attached to the left side in the axial direction and a right blade attached to the right side in the axial direction.   The fish processing apparatus according to claim 3, wherein the right-side cutting tool and the left-side cutting tool are adjusted in an axial direction interval by a spacer disposed between the cutting tools.   A three-sheet lowering mechanism that is arranged along the fish transport mechanism and has a pair of two blades on each of the left and right sides and divides the fish body scraped off from the internal organs into a left fillet, a middle bone, and a right fillet. Furthermore, the fish processing apparatus in any one of Claims 1-4 provided. A plate-shaped blade that extends in the longitudinal direction and spreads in the width direction perpendicular to the longitudinal direction,
The longitudinal tip has a symmetrical shape with respect to a center line extending in the longitudinal direction, has a maximum width slightly on the proximal side from the longitudinal tip, and a width from the longitudinal position that becomes the maximum width toward the proximal side. A cutting tool for removing the internal organs of a fish, wherein the direction dimension gradually decreases and the width direction dimension decreases rapidly toward the tip side from the longitudinal position where the maximum width is reached.   The blade for removing internal organs of a fish body according to claim 6, wherein the plate-shaped blade is configured by connecting a width direction left side portion and a width direction right side portion.