JPH10304819A - Shellfish flesh - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a shellfish flesh producing no drip even if thawed after frozen once, retaining its fresh state, by realizing such a condition that the joint surface kept fresh and jointed to the original shell is covered with a membrane. SOLUTION: A shellfish flesh as edible portion separated from the original shell consisting of bivalve such as scallop and from non-edible portions is brought to such a condition that the joint surface kept fresh and jointed to the original shell is covered with a membrane. For example, when the original shell as a bivalve is scallop, the shell surface of the scallop is imparted with high-temperature steam or medium-temperature water for a short time to keep the edible portion fresh and enable a pair of the shells to be easily opened. That is, the joint between the edible portion and the shell can be heated so as to run to a gel-like state; as a result, the edible portion can be easily peeled off the shell in such a state that the joint surface between the edible portion and the shell is covered with the membrane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shell obtained by separating only a portion of a raw shell composed of bivalves from a shell in a raw state, and more particularly to a shell suitable for raw eating.

[0002]

2. Description of the Related Art Generally, in order to take out a raw portion of a raw shell composed of bivalves, for example, a closed mussel composed of scallops and trabeculae of a scallop, from a shell in a raw state, a thin knife-like shape called a shell is required. Is performed by manually cutting the joint of the scallop and the closed shell muscle, which closes the two shells, using the tool.

[0003] However, if the closed scallop muscle of the scallop is cut and separated from the shell by hand, it is inefficient, requires a great deal of labor and time, and when a large amount of scallop is landed at once, etc. However, there is a problem that the freshness of the scallop is reduced unless a large number of personnel are put in and processed quickly.

[0004] Therefore, various proposals have conventionally been made to efficiently separate the portion eaten by the original shell consisting of bivalves from the shell.

For example, Japanese Patent Application Laid-Open No.
As described in Japanese Patent Publication No. 3-87937 (Japanese Patent Publication No. 2-14014), the tip of the scallop is cut with a cutter or the like to form an opening at the tip of the scallop, and a blade inserted from the opening is used to cut a scallop. In some cases, advancing while sliding on the inner surface of one of the shells cuts the joint between the closed shell muscle that closes the two shells and one of the shells, thereby expanding the shell.

As another example, see, for example,
0-3899, JP-A-52-13900,
As described in Japanese Patent Application Laid-Open No. Hei 5-3751, there is a method in which a scallop is heated by a heating means to expand a shell, and then the scallop is separated from the other shell.

[0007]

However, in the above-mentioned conventional scallop in which the tip of the scallop is cut with a cutter or the like, although the closed shell muscle to be eaten can be taken out of the shell in a raw state used for raw eating, Cutting debris adheres to the putative muscle and removes the damaged putative muscle,
There has been a problem that a great deal of labor and time are required for post-processing such as removing cutting debris from the closed-shell muscle. Furthermore, the separation of the closed-shell muscle from the shell is performed by manual work such as cutting the joint between the shell and the closed-shell muscle, and requires a great deal of effort to separate the scallop from the shell. There is also a problem that the muscle cannot be efficiently separated from the shell in a raw state.

In a conventional scallop shell which is heated by a heating means to expand the shell, the mouth of the shell can be easily opened, but the surface of the closed shell muscle, particularly the closed shell muscle located on the heating side, is not used. The surface is discolored white and becomes a so-called boiled state, the appearance quality is reduced, and there are many things that can not retain the quality for use in raw food, that is, in those using conventional heating means, However, there is a problem that few of the closed-shell muscles taken out of the scallop can be supplied as raw food.

Furthermore, separating the closed muscle from the shell after the shell has been expanded is performed manually, which requires a great deal of labor to separate the closed muscle from the shell, and the closed muscle is efficiently separated from the shell. There was also a problem that separation could not be performed well.

Furthermore, when the closed muscle is separated from the expanded shell by using a knife-like tool called a shell, the shell and the closed shell are used regardless of whether they are manual work or mechanical work by an automatic machine. The joints with the muscles will be cut, and the surface of the separated closed-shell muscles will become jagged cut surfaces, deteriorating the appearance quality, and even if the blade of a knife-like tool is moved along the unevenness of the shell However, there is a problem that the yield cannot be improved because a part of the closed-shell muscle remains in the concave portion of the shell because it cannot completely follow the unevenness of the shell.

Further, by cutting the joint portion between the shell and the closed muscle, the closed muscle separated from the shell easily absorbs water from the cut surface, and the closed muscle separated from the shell is trimmed (used as food). The water used in the washing operation to remove extraneous matter such as fine internal organs adhering to the closed muscle is absorbed into the inside of the closed muscle and the taste is reduced.
When the closed-shell muscle is stored frozen, there is a problem that when thawed, umami components flow out together with the absorbed water called drip.

The present invention has been made in view of the above points, and an object of the present invention is to provide a shellfish that maintains a fresh state and does not drip even if it is thawed once frozen.

[0013]

Means for Solving the Problems In order to achieve the above-mentioned object, the present inventors have studied the efficiency of a raw shell made of bivalves while maintaining the quality required for use in raw eating. As a result of diligent research to separate well, when the original shell consisting of two clams is used as a scallop, high-temperature steam or hot water is applied to the surface of the scallop shell for a short period of time, and The mouth of the shell can be easily expanded by keeping the state, that is, the joint between the eating part and the shell can be heated so as to become a gel,
As a result, the present inventors have found that it is possible to weaken the bonding force at the joint between the eating part and the shell and to easily peel off the eating part from the shell while the joint surface is covered with the film, and completed the present invention. is there.

That is, a feature of the shellfish of the present invention described in claim 1 is that the shell is kept in a raw state and the joint surface that has been joined with the original shell is covered with a membrane. . And, by adopting such a configuration, the shellfish itself is kept in a raw state, so it is suitable for raw eating, and since the joint surface with the shell is covered with a membrane, Even if frozen once, there is no drip at the time of thawing, and there is no danger of the delicious ingredients flowing out.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view showing a main part of an embodiment of a bivalve peeling apparatus to which a bivalve peeling method for producing shellfish according to the present invention is applied.

[0016] The bivalve peeling apparatus 1 in the present embodiment.
Is a live scallop 2 consisting of a bivalve shell, and a closed shell muscle 2a composed of a scallop 2aa and a trabecula 2ab as an edible portion (edible portion) used for raw eating from the scallop 2. It is made to take out efficiently from shell 2A.

As shown in FIG. 1, a bivalve peeling apparatus 1 according to the present embodiment transfers a scallop 2 substantially horizontally from left to right as indicated by an arrow A in FIG. Transport means 3 for carrying out. The transport means 3 is disposed on a main frame (both not shown) provided with a control section for controlling the operation of each section. The position of the transport means 3 shown in FIG. (Not shown) is a loading position SP where the live scallop 2 which is sorted by size and supplied from the raw shell supply conveyor 4 is transferred manually or by a robot or the like, and is a position shown on the upper right side in FIG. Is a discharge position OP for discharging the shell 2A after separating (removing) the closed-shell muscle 2a to the outside.

While the scallop 2 is being transported by the transport means 3 from the input position SP to the discharge position OP in the shell transfer direction indicated by the arrow A in FIG. 1, the shell transfer direction shown in the upper left direction in FIG. Washing means 5, heating means 6, forced shell opening means 7, shell separating means 8, organ separation means 9 as non-edible part separating means, pre-separation heating means 1 in order from the upstream side of
0, a scallop separating means 11 as an edible part separating means is provided. Further, the shellfish washing means 5, the heating means 6, the forced shell opening means 7, the internal organ separation means 9, the pre-separation heating means 10, and the scallop separation means 11 are arranged at substantially the same intervals. Is a forced shell opening means 7 and a viscera separating means 9
It is arranged between and.

Further, below the shell separating means 8, there is provided a shell discharge conveyor 12 for discharging one of the shells 2A separated by the shell separating means 8, in this embodiment, the upper shell 2AA. I have.

A discharge chute 13 is disposed on the right side of the discharge position OP of the transport means 3, and the closed shell muscle 2 a is separated by the scallop separating means 11 below and to the right of the discharge chute 13. A shell discharge conveyor 1 for discharging the other shell 2A later, in this embodiment, the lower shell 2AB
4 are provided. Furthermore, a collecting conveyor 15 for collecting the lower shell 2AB ′ remaining without the closed shell muscle 2a being separated by the scallop separating means 11 is disposed below the substantially central portion of the discharge chute 13 in the longitudinal direction. I have.

The transport means 3 will be further described with reference to FIGS.

FIG. 2 is a plan view showing the conveying means of FIG. 1, FIG. 3 is a plan view of the original shell mounting plate of FIG. 2, FIG. 4 is an enlarged sectional side view of FIG. 3, and FIG. It is explanatory drawing of the principal part which shows the attachment state of the sensor which detects the driving | running | working of the original shell mounting plate of a means.

The transport means 3 is for transporting (transporting) the scallop 2 in the direction of transport of the scallop from left to right as indicated by an arrow A in FIG. 1, as shown in FIGS. 1 and 2. And a chain conveyor 16 formed in an endless annular shape. As shown in FIG. 1, the chain conveyor 16 is wound so as to come into contact with the outer peripheral surface of each of the sprockets 17 arranged at a total of four places, that is, two places at the upper right and left and two places at the lower right and left. . Then, any one of the four sprockets 17 can be driven to rotate by a driving force of a driving motor (not shown). That is, the chain conveyor 16 can be driven to rotate clockwise in FIG. 1 by the driving force of the driving motor. The chain conveyor 16 travels along a predetermined route while being guided by a chain guide (not shown) provided at an appropriate position on the main frame.

As shown in FIG. 2, the chain conveyor 16
A plurality of original shell mounting plates 18 formed in a substantially flat plate shape
Are attached at appropriate intervals. The original shell mounting plate 18 is disposed in parallel with each other such that the longitudinal direction is orthogonal to the shell moving direction indicated by the arrow A in FIG. The vicinity of both ends is attached to the chain conveyor 16 via the attachment member 16a.

As shown in FIGS. 3 and 4, a plurality of the original shell mounting plates 18 penetrate in the thickness direction for mounting the scallop 2 so as to support the scallop 2 from below, in this embodiment. Six shell fitting holes 19 are formed at appropriate intervals in the longitudinal direction of the original shell mounting plate 18. This shell fitting hole 1
9 is formed smaller than the shell 2A. A stopper 20 is attached to each of the shell fitting holes 19 formed in the original shell mounting plate 18 on the upstream side in the shell transfer direction indicated by the arrow A in FIGS. 3 and 4. This stopper 20
The scallop 2 is formed so as to have a height approximately equal to the thickness of the scallop 2 so that the scallop 2 can be prevented from being displaced or falling off when the scallop 2 is conveyed.

That is, in the present embodiment, FIG.
As shown in FIG. 2, the scallops 2 arranged in six rows can be simultaneously conveyed in the shell moving direction indicated by the arrow A in FIG.

The traveling of the original shell mounting plate 18 in the shell moving direction indicated by the arrow A in FIG. 1 is detected by a pair of sensors 92, 92 as shown in FIGS. It has become so. The sensors 92, 92 are mounted via a mounting member 97 to a support stay 94 mounted on a sub-frame 93 supported on a main frame (not shown). The transporting means 3 includes a pair of sensors 92, 92.
5 (a) and 5 (b), when a sensor 92 located on the upstream side (left side) of the shell running direction indicated by an arrow A senses the shell mounted plate 18, the sensor 92 is mounted on the shell. Board 1
8 is sent to a control unit (not shown), and the control unit controls to reduce the traveling speed of the raw shell mounting plate 18 traveling on the drive motor (not shown). ing.

5 (a) and 5 (b), a sensor 9 located on the downstream side (right side) in the shell running direction indicated by arrow A.
2 senses the original shell mounting plate 18, this sensor 92
The detection signal of the shell shell mounting plate 18 is sent to a control unit (not shown), and the control unit controls the drive motor (not shown) so that the shell shell mounting plate 18 traveling at a reduced speed is stopped. It has become.

Further, the control unit drives a drive motor (not shown) when a preset time elapses after the shell mounting plate 18 stops, and the shell mounting plate 18 starts running again. Control.

The transport means 3 is arranged such that the original shell mounting plate 18 is positioned at the shell washing means 5, the heating means 6, the forced shell opening means 7, the internal organ separation means 9, the pre-separation heating means 10 and the scallop separation means 11, respectively. It is driven intermittently so that it can be stopped.

The sensor 92 can be selected from various known sensors such as a non-contact type optical sensor and a contact type limit switch.

The shellfish washing means 5 will be further described with reference to FIG.

FIG. 6 is a side view showing the main part of the shellfish washing means of FIG. 1 as viewed from the downstream side in the shellfish transfer direction.

The shell washing means 5 includes a shell 2 A of the scallop 2.
The cleaning liquid W such as water or warm water is placed on the original shell mounting plate 18 as shown in FIG. 6 to remove the deposits adhering to the surface of the shell 2A and clean the surface of the shell 2A. Each of the scallops 2 has a cleaning liquid jet nozzle 21 for jetting toward the surface of the upper shell 2AA and the lower shell 2AB.
Each of the cleaning liquid jet nozzles 21 is connected to a pair of upper and lower cleaning liquid supply pipes 22 that are disposed so as to be orthogonal to the shellfish transfer direction indicated by the arrow A in FIG. The cleaning liquid W at a predetermined pressure is supplied to the cleaning liquid supply pipe 22 by a pump (not shown) for a predetermined time via a control valve (not shown).

That is, as shown in FIG. 6, the shell washing means 5 in the present embodiment comprises a chain conveyor 16 for washing the surface of the upper shell 2AA of each scallop 2 placed on the original shell mounting plate 18. And six cleaning liquid injection nozzles 21 disposed below the chain conveyor 16 for cleaning the surface of the lower shell 2AB of each scallop 2. .

The heating means 6 will be further described with reference to FIG.

FIG. 7 is a side view showing a main part of the heating means of FIG. 1 as viewed from the downstream side in the shellfish transfer direction.

The heating means 6 has a closed shell muscle 2a as a portion where the scallop 2 eats the surface of one of the shells 2A of the scallop 2 as an original shell made of bivalve shells, and has a closed shell. The heating means 6 of this embodiment is for heating the joint portion of the muscle 2a with the one shell 2A so as to be in a gel state, and the heating means 6 of the present embodiment is provided with the upper shell 2AA which is one shell 2A of the scallop 2. The surface is not discolored by the closed-shell muscle 2a, and
The scallop 2 can be heated while keeping the mouth closed.

As shown in FIG. 7, the heating means 6 of the present embodiment serves as a heating source toward the surface of the upper shell 2AA located above each of the scallops 2 placed on the original shell mounting plate 18. It has six steam jet nozzles 23 as heating nozzles for jetting steam H. Each steam injection nozzle 2
Numeral 3 is connected to a steam supply pipe 24 arranged so as to be orthogonal to the shellfish transfer direction indicated by arrow A in FIG. The steam H is supplied to the steam supply pipe 24 via a control valve (not shown) by a pump (not shown) for a predetermined time.

That is, the heating means 6 in the present embodiment comprises the upper shell 2 A of the scallop 2 placed on the original shell mounting plate 18.
A high temperature steam H as a heating source is applied to the surface of A for a short time.
For example, it is configured to inject steam H at 100 ° C. for about 4 seconds, thereby maintaining a state in which the mouth of the scallop 2 is closed so that the closed-shell muscle 2a does not discolor and keeps a raw state, In addition, the joint portion between the closed-shell muscle 2a and the upper shell 2AA can be formed into a gel. The temperature and the injection time of the steam H may be adjusted based on the size and the body temperature of the scallop 2, and are not particularly limited to the temperature and the time in the present embodiment. Also, high-temperature hot water (maximum 100 ° C.) may be used as the heating source.

The forced shell opening means 7 is shown in FIGS.
This will be further described with reference to FIG.

FIG. 8 is a side view showing a main part of the forced shell opening means of FIG. 1 in the suction state as viewed from the downstream side in the shell transfer direction, and FIG. 9 is a partially enlarged front view of the forced shell opening means of FIG. FIG. 10 is a partially enlarged front view showing a main part of the pad driving means of the forced shell opening means of FIG. 8, FIG. 11 is a partial side view of FIG. 10, and FIG. 12 is a state in which the forced shell opening means of FIG. FIG. 3 is a partially enlarged front view showing an arrangement state of an upper drive cylinder.

The forced shell opening means 7 is for forcibly expanding the shell 2A of the scallop 2 as an original shell made of bivalve shells.
Is forcibly expanding the upper shell 2AA from the lower shell 2AB around the hinge 2B by forcibly expanding the scallop 2 in which the joint with the upper shell 2AA is closed by the heating means 6; Is the upper shell 2AA of the two shells 2A that are closed
Can be forcibly opened by opening the shell (two shells 2 </ b> A) by peeling and separating the shell from the joint with the closed-shell muscle 2 a located on the heating side.

The forced shell opening means 7 in the present embodiment comprises:
As shown in FIG. 8, a pair of upper and lower suction pads 25 that can be sucked to the surface of each shell 2 </ b> A of the scallop 2 with the transfer surface of the chain conveyor 16 therebetween, and a pair of upper and lower suction pads 25 A pair of upper and lower pad driving means 26 for driving the suction pad 25 is provided.

The one suction pad 25 shown in the upper part of FIG. 8 is an upper suction pad 25A which can be brought into close contact with the surface of the upper shell 2AA of the scallop 2 with a negative pressure, and the other suction pad shown in the lower part of FIG. Reference numeral 25 denotes a lower suction pad 2 which can adhere to the surface of the lower shell 2AB of the scallop 2 with a negative pressure.
5B.

As shown in FIG. 9, the upper suction pad 25A
Has a base 27 formed in a substantially cylindrical shape, and an end face (lower end face) of the base 27 facing the upper shell 2AA is provided with:
A pad body 28 formed of an elastic body such as resin or rubber is fixed. Then, the base 27 and the pad body 2
A bottomed communication hole 29 is formed so that the lower end surface of the pad body 28 is open so as to penetrate the shaft core portion of the base member 8, and a hose is formed on the outer peripheral surface of the base 27 so as to communicate with the communication hole 29. 3
0 is connected to one end. The other end of the hose 30
It is connected to a vacuum pump (both not shown) via a three-way solenoid valve, and a negative pressure and a positive pressure are selectively supplied to the communication hole 29.

The pad body 28 is preferably formed of a relatively soft styrene-based thermoplastic resin or silicone rubber as a material so as to be in close contact with the uneven surface of the shell 2A.

As shown in FIGS. 10 and 11, a joint 31 is provided on the upper end surface of the base 27 of the upper suction pad 25A.
One end of the joint 31 is attached to a pad holder 32 disposed above the upper suction pad 25A.
It is attached to. As shown in FIG. 11, the pad holder 32 has a flat plate portion 32a located above the upper suction pad 25A. At both ends of the flat plate portion 32a,
Extending portions 32b extending downward are provided in parallel with each other, and the pad holder 32 is formed in a downward U-shape as a whole. Further, each extending portion 32b of the pad holder 32 is disposed so as to be located at a substantially axially central portion of the outer peripheral surface of the upper suction pad 25A so as to face the outer peripheral surface of the upper suction pad 25A. Further, in the vicinity of the distal end of each extension 32b, a rotation support shaft 33 that projects the extension 32b outward in the plate thickness direction is provided. Furthermore, the pad holder 32 is supported by an operation plate 34.

The operating plate 34 extends substantially horizontally to the right in FIG. 10 and has a bifurcated tip, and the operating plate 34 extends diagonally downward to the right and has a bifurcated tip in FIG. It has a support arm 36 whose tip is horizontal and a connecting arm 37 that extends substantially horizontally to the left in FIG. And
As shown in FIG. 11, one end of each spring 38 is locked near the distal end of the horizontal arm 35.
The other end of the spring 38 is connected to the flat plate portion 3 of the pad holder 32.
It is locked near both ends of 2a. Further, the tip of the support arm 36 is connected to the extension 32b of the pad holder 32.
The pad holder 32 is rotatably supported by a rotation support shaft 33 disposed near the distal end of the extension 32b of the pad holder 32.

That is, the pad holder 32 holds the operating plate 3
4 is rotatably supported on the rotation support shaft 33 as a center, and the flat plate portion 32a is constantly urged toward the vicinity of the tip of the horizontal arm 35 of the operation plate 34 by the urging force of the spring 38. Is to be
The position and posture of the pad holder 32 in the free state are controlled by the rotation support shaft 33 and the spring 38.

By controlling the position and posture of the pad holder 32 in the free state, the position and posture of the upper suction pad 25A in the free state can be adjusted so that the lower end surface of the pad body 28 of the upper suction pad 25A is always downward. It can be controlled to face.

Further, as shown in FIG.
One end of a link plate 39 is rotatably attached to each of the distal end and the base end of the link 7, and the other end of each link plate 39 is fixed at a position below the connecting arm 37. Board 4
0 to be freely rotatable. That is, the movement trajectory of the operation plate 34 is restrained by the fixed plate 40 and the link plates 39 so as to be substantially arc-shaped as shown by a double-headed arrow B in FIG. The movement trajectory of the operation plate 34 is substantially the same as the opening arc when the shell 2A of the scallop 2 is expanded.

As shown in FIGS. 10 and 11, near the intersection of the upper side of the horizontal arm 35 of the operating plate 34 and the upper side of the connecting arm 37, a support shaft 41 penetrating the operating plate 34 in the plate thickness direction is arranged. Has been established. The operation plate 34 is attached to the support shaft 41.
A connecting member 42 having a bifurcated distal end capable of being interposed so as to be sandwiched from both sides in the plate thickness direction is rotatably attached. The upper end of the connecting member 42 located diagonally to the upper left in FIG. 10 is attached to the lower end shown in FIG. 10 below of the rod 43 disposed diagonally upward to the left in FIG. ing. A bearing block 44 in which the outer peripheral surface of the rod 43 is slidably fitted is disposed above the rod 43, and the upper end of the rod 43 has a diameter larger than the outer diameter of the rod 43. The provided stopper body 45 is provided.

That is, the rod 43 is connected to the bearing block 4
4, as shown by a double-headed arrow C in FIG. 10, it is possible to move obliquely between the upper left and the lower right.

A compression coil spring 46 is externally fitted to the lower part of the outer peripheral surface of the rod 43. The upper end surface of the compression coil spring 46 shown diagonally above and to the left in FIG. Abutting, compression coil spring 46
In FIG. 10, the lower end surface shown diagonally below and right is in contact with the upper end surface of the connecting member 42.

The bearing block 44 is attached to a substantially flat upper support frame 47. As shown in FIG. 10, the upper support frame 47 is disposed obliquely so as to extend in parallel with the rod 43, and as shown in FIG. It is arranged so as to be orthogonal to the direction. As shown in FIG. 8, the output shaft 4 of an upper drive cylinder (reciprocating cylinder) 48 is provided near both ends of the upper support frame 47 in the longitudinal direction.
8a are respectively attached. The upper drive cylinder 48 is attached to the outside of a side frame 49 provided outside the chain conveyor 16, as shown in FIGS. Further, the output shaft 48a of the upper drive cylinder 48 is movable obliquely between a diagonally upper left and a diagonally lower right as shown by a double-headed arrow D in FIG.

That is, by driving the upper drive cylinder 48, the output shaft 48a of the upper drive cylinder 48 advances and retreats the upper support frame 47 diagonally as shown by a double-headed arrow D in FIG. Move the bearing block 44 obliquely as shown by a double-headed arrow C in FIG. The forward / backward movement of the bearing block 44 indicated by the double arrow C in FIG. 10 is transmitted to the rod 43 via the compression coil spring 46,
Is moved between a diagonally upper left position and a diagonally lower right position as indicated by a double-headed arrow C in FIG. Further, the forward / backward movement of the rod 43 shown by the double arrow C in FIG. 10 is transmitted to the operating plate 34, and the operating plate 34 is fixed to the fixed plate 40 and each link plate 39 as shown by the double arrow B in FIG. The rotation of the operation plate 34 in the substantially arc shape is transmitted to the upper suction pad 25A via the pad holder 32. I have.

The pad holder 32, the operating plate 34, the rod 43, the bearing block 44, the upper support frame 47, and the upper drive cylinder 48 constitute the upper pad driving means 26A of the present embodiment.

Returning to FIG. 9, the lower suction pad 25B has a base 50 formed in a substantially columnar shape.
A pad body 51 formed of an elastic material such as resin or rubber is fixed to an end surface (upper surface) of the lower shell 2AB facing the lower shell 2AB. A communication hole 52 whose both ends are open is formed so as to penetrate an axis of the base 50 and the pad body 51, and one end of the hose 30 is connected to a lower end surface of the base 50. The other end of the hose 30 is connected to a vacuum pump (both not shown) via a three-way solenoid valve, so that negative pressure and positive pressure are selectively supplied.

As in the case of the pad body 28, the pad body 51 may be formed of a relatively soft styrene-based thermoplastic resin or silicone rubber to adhere to the uneven surface of the shell 2A. preferable.

That is, at least the contact portion of the suction pad 25 with the shell 2A is preferably formed of a styrene-based thermoplastic resin or silicone rubber.

As shown in FIGS. 8 and 9, the lower end surface of the base 50 of each of the lower suction pads 25B is attached to the lower support frame 53 so that the hose 30 and the connection portion with the hose 30 do not interfere with each other. ing. The lower support frame 53 is disposed so that its longitudinal direction is orthogonal to the shellfish transfer direction indicated by the arrow A in FIG. The output shaft 5 of a lower drive cylinder (reciprocating cylinder) 54 is provided near both ends in the longitudinal direction of the lower support frame 53.
The lower end of the lower support frame 53 is movable in the vertical direction by driving the lower drive cylinder 54 to move the output shaft 54a in the vertical direction. Further, each lower drive cylinder 54 is provided as shown in FIG.
As shown in the figure, the inner frame is attached to the inside of a side frame 49 disposed outside the chain conveyor 16.

That is, when the lower drive cylinder 54 is driven, the lower support frame 53 moves up and down.
Are in contact with and separated from the surface of each lower shell 2AB.

The lower support frame 53 and the lower drive cylinder 54 are used to drive the lower pad driving means 26B of this embodiment.
Is configured.

FIGS. 2 and 1 show the shell separating means 8.
This will be further described with reference to FIG.

FIG. 13 is an enlarged front view showing a main part of the shell separating means of FIG.

The shell separating means 8 separates the shell 2A to which the closed shell muscle 2a serving as a part for unshelling and eating one of the shells 2A from the scallop 2 as the original shell consisting of the expanded bivalve shells. The shell separating means 8 of the present embodiment is provided on the scallop 2 while the scallop 2 whose forcible shell opening is forcibly opened by the forced shell opening means 7 is transferred to the internal organ separating means 9. Lower shell 2 in which closed shell muscle 2a joins shell 2AA
It can be separated from AB.

As shown in FIGS. 2 and 13, the shell separating means 8 of the present embodiment is mounted on the original shell mounting plate 18 and each of the scallops 2 whose mouth is opened by the forced shell opening means 7. The upper shell 2AA has six substantially flat separation plates 55 whose tips can be brought into contact with the inner surface of the upper shell 2AA. This separation plate 55
Are arranged so as to be perpendicular to the shellfish transfer direction indicated by arrow A in FIG. 2 and FIG. 13, and each supporting member is arranged so as to lie above the chain conveyor 16. 56 is attached to the lower surface. The separation plate 55 is formed in a substantially inverted front shape so that the tip located on the upstream side in the shellfish transfer direction shown by arrow A in FIG. 13 is located upward. In addition, both ends of the support member 56 are rotatably attached to the mounting member 57,
The spring 95 (FIG. 13) holds the scallop 2 placed on the original shell mounting plate 18 in an abnormal position, the scallop 2 is thick, and the upper part of the upper shell 2AA is the stopper 2.
Separation plate 55 when it is positioned higher than the upper end of
Is movable. The mounting member 57 is
It is attached to a mounting frame (not shown) provided outside the chain conveyor 16.

The separation plates 55 are arranged with their phases slightly shifted in the shell transfer direction in each row as necessary, for example, to reduce the load when separating the upper shell 2AA from the lower shell 2AB. You may.

Further, as shown by an imaginary line in FIG. 13, one end extends substantially downward to the rear end of the separation plate 55, and is rotatable as shown by a dashed double arrow in FIG. A hinge 96 is provided, and the hinge 96 makes the upper shell 2A.
The posture control of the lower shell 2AB after separating A may be performed.

The internal organ separating means 9 will be further described with reference to FIGS. 1 and 14 to 16.

FIG. 14 is a side view showing the main part of the internal organ separating means as the non-edible part separating means of FIG. 1 viewed from the downstream side in the shellfish transfer direction, FIG. 15 is a partially enlarged side view of FIG. Figure 1
FIG. 4 is a partially enlarged front view of FIG.

The visceral separation means 9 separates the visceral organ 2b as a non-eating part other than the closed-shell muscle 2a as a part to be eaten from the shell 2A of the scallop 2 as the original shell consisting of the expanded bivalve shells. The visceral separation means 9 according to the present embodiment uses a negative pressure to suck the visceral organs 2b, such as uro and string, which are non-eating parts other than the closed shell muscle 2a left in the lower shell 2AB of the scallop 2. Can be separated (removed).

The visceral separation means 9 of the present embodiment is similar to that of FIG.
As shown in FIG. 16, six suction nozzles 5 arranged to face the inner surface of the lower shell 2AB of each scallop 2
Eight. As shown in detail in FIG. 15, each of the suction nozzles 58 is formed in a substantially cylindrical shape, and has a lower end surface facing the closed shell 2 a of the scallop 2 having an inner diameter larger than the outer diameter of the closed shell 2 a of the scallop 2. The suction hole 59 has a size, and is capable of coming into contact with and separating from the inner surface of the lower shell 2AB. A base portion 60 having a substantially cylindrical shape is attached to an upper portion of the suction nozzle 58. A cylindrical sliding ring 61 is fitted to the lower part of the outer peripheral surface of the base part 60 and to a substantially central part in the axial direction so as to be slidable in the axial direction, respectively.
A flat plate 62 is attached to the upper part of the outer peripheral surface of the base part 60 by a retaining ring 63. Further, the base 6
0, an internal transfer hose 6 as shown in FIG.
4 is connected to one end. The other end of the built-in transfer hose 64 is connected to a chamber 65 as shown in FIG.

A vacuum pump (both not shown) is connected to the upper part of the chamber 65 via a three-way solenoid valve, and selectively connects a negative pressure and a positive pressure to the internal transfer hose 64 via the chamber 65. It can be supplied to. An openable / closable door 66 is provided below the chamber 65, and the internal organ 2b that has passed through the internal organ transfer hose 64 is opened and closed each time to open and close the container 2 or a conveyor (not shown). Can be discharged to

The internal organ transfer hose 64 may always be supplied with a negative pressure when the internal organ separating means 9 is driven.

The size of the contact portion of the suction nozzle 58 with the lower shell 2AB should be the size corresponding to the size of the closed shell 2a of the scallop 2 selected by the original shell sorter (not shown). It is supposed to be.

Furthermore, at least the contact portion of the suction nozzle 58 that contacts the inner surface of the lower shell 2AB is made of a material that can be in close contact with the inner surface of the lower shell 2AB when contacting the inner surface of the lower shell 2AB. Alternatively, it is preferable to use an elastic body such as rubber or the like in order to effectively apply the suction force due to the negative pressure.

As shown in FIG. 15, the outer peripheral surface of the sliding ring 61 located at the lower portion of the base portion 60 is attached to the lower frame 67 by a retaining ring 68. As shown in FIG. 16, the lower frame 67 is formed in a downward U-shape, and is arranged such that its longitudinal direction is orthogonal to the shellfish transport direction. Then, at both ends of the lower frame 67, as shown in FIGS.
The tip of the output shaft 69a of the lower frame drive cylinder (reciprocating cylinder) 69 is attached. The lower frame driving cylinder 69 is attached to the outside of a side frame 70 provided outside the chain conveyor 16 with its output shaft 69a facing upward.

As shown in FIG. 15, the outer peripheral surface of the sliding ring 61 located substantially at the center of the base portion 60 in the longitudinal direction is formed in a flat plate-like shape disposed above the lower frame 67. The frame 71 is attached to a retaining ring 72.
The middle frame 71 is arranged such that the longitudinal direction thereof is orthogonal to the shellfish transport direction, similarly to the lower frame 67. The middle frame 71 is supported above the lower frame 67 by small-diameter stepped cylindrical support pipes 73 at both ends arranged in parallel on both sides of each base portion 60.

The support pipe 73 includes a support pipe 73
The sliding rod 74 is fitted so as to penetrate the shaft center portion of the sliding rod 74. A head member 75 that is in contact with the upper end surface of the support pipe 73 is attached to the upper end of the sliding rod 74. Further, on the lower end surface of the sliding rod 74, a shell holder 76 for pressing the edge of the lower shell 2AB from above as a set of two sliding rods 74 adjacent to each suction nozzle 58 is attached. It is attached via a member 77. The inner diameter of the shell retainer 76 is formed larger than the outer diameter of the suction nozzle 58. A compression coil spring 78 is attached to a lower portion of the outer peripheral surface of the sliding rod 74.
One end (upper end) of the compression coil spring 78 is in contact with the lower end surface of the support pipe 73, and the other end (lower end) of the compression coil spring 78 is in contact with the upper end surface of the mounting member 77.

That is, the sliding rod 74 is always urged downward by the urging force of the compression coil spring 78, whereby the shell retainer 76 is urged by the urging force of the compression coil spring 78. The lower shell 2AB can be brought into contact with the edge.

Note that at least the lower shell 2A of the shell holder 76
B comes into contact with the lower shell 2AB when it comes into contact with the lower shell 2AB.
AB is preferably made of a material that does not break, for example, an elastic body such as resin or rubber, or a thin metal plate via the elastic body.

As shown in detail in FIG. 15, the plate 62 is provided on the upper frame 7 disposed above the middle frame 71.
9 is slidably fitted to a support pin 80 erected on the upper surface of the upper surface 9. A compression coil spring 81 is mounted on the outer peripheral surface of the support pin 80. This compression coil spring 8
One end (upper end) of the disk-shaped support member 82 has a diameter larger than the outer diameter of the support pin 80 attached to the upper end of the support pin 80.
The other end (lower end) of the compression coil spring 81 is in contact with the upper surface of the plate 62.

That is, the plate 62 is always urged toward the upper surface of the upper frame 79 by the urging force of the compression coil spring 81, whereby the suction nozzle 58 causes the compression coil spring 81 It is possible to abut on the inner surface of the lower shell 2AB with force.

As shown in FIG. 16, the upper frame 79 is formed in a substantially downward U-shape, and is arranged so that its longitudinal direction is orthogonal to the shellfish transport direction. As shown in FIGS. 14 and 15, the ends of an output shaft 83a of an upper frame driving cylinder (reciprocating cylinder) 83 are attached to both ends of the upper frame 79. As shown in FIG. 15, the upper frame driving cylinder 83 has output shafts 8 near both ends of the lower frame 67.
3a is attached upward.

That is, the internal organ separating means 9 in the present embodiment drives the lower frame driving cylinder 69 so that the output shaft 69a of the lower frame driving cylinder 69 causes the lower frame 67 to move. The lower frame 67 is moved up and down in the vertical direction shown by E, and the suction nozzle 58 and the shell retainer 76 are moved downward by the lower shell 2AB.
When the upper frame driving cylinder 83 is driven, the output shaft 83a of the upper frame driving cylinder 83 causes only the upper frame 79 to move. The upward and downward movement of the upper frame 79 is transmitted to the base unit 60 via the plate 62, and the upward and downward movement is performed so that only the suction nozzle 58 contacts and separates from the lower shell 2AB. It has become.

The lower frame 67, the lower frame driving cylinder 69, the upper frame 79, and the upper frame driving cylinder 83 allow the suction hole 5 of the suction nozzle 58 of the present embodiment to be used.
Nozzle contact / separation means 98 for contacting / separating the tip of 9 with the inner surface of the lower shell 2AB as the other shell 2A is configured. In addition, the upper frame 79 and the upper frame driving cylinder 83 move the suction nozzle 58 of the present embodiment to the lower shell 2AB.
Nozzle vibration applying means 99 for vibrating so as to be in contact with and separated from the inner surface of the nozzle.

The pre-separation heating means 10 will be further described.

The pre-separation heating means 10 includes the expanded 2
The surface of the shell 2A to which the scallop 2a serving as a part to be eaten by the scallop 2 as a raw shell made of a single shell is kept in a raw state by the closed shell 2a serving as a part to be eaten by the scallop 2 as a raw shell. The pre-separation heating means 10 in the present embodiment is provided with a heating source as a heating source in order to weaken the joining force of the joining portion between the inner surface of the lower shell 2AB and the closed-shell muscle 2a. By injecting the water vapor H upward, the surface of the lower shell 2AB of the scallop 2 is closed to the closed shell muscle 2a.
Can be heated so as to maintain a raw state without discoloration and to form a gel at the joint portion with the lower shell 2AB of the closed-shell muscle 2a, similar to the heating means 6. It has a configuration. Therefore, detailed description is omitted.

The scallop separating means 11 will be further described.

The scallop separating means 11 is for separating the closed-shell muscle 2a as a part to be eaten from the shell 2A of the scallop 2 as the original shell composed of the expanded bivalve shells,
The scallop separating means 11 in the present embodiment includes a lower shell 2AB
The closed-shell muscle 2a composed of the scallop 2aa and the trabeculae 2ab as a part (edible portion) to be eaten from the inner surface of the shell can be separated and separated, and has the same configuration as the visceral separation means 9. ing. That is, each suction nozzle 58 of the scallop separating means 11 is formed to suck the closed shell muscle 2a. Therefore, detailed description of the scallop separating means 11 in the present embodiment is omitted.

As shown in FIG. 1, one end of a scallop transfer hose 84 is connected to the upper end of the base portion 60 of the scallop separating means 11. The other end of the shell transfer hose 84 is connected to the chamber 85. A vacuum pump (both not shown) is connected to the upper part of the chamber 85 via a three-way solenoid valve so that a negative pressure and a positive pressure can be selectively supplied to the shell transfer hose 84. It has become. An openable and closable door 86 is provided below the chamber 85. The closed shell 2a that has passed through the scallop transfer hose 84 opens and closes the openable and closable door 86 each time to open or close a container or a discharge conveyor (not shown). ) Can be discharged.

It should be noted that the scallop transfer hose 84 may always be supplied with a negative pressure when the scallop separating means 11 is driven.

Further, a sensor 87 composed of an optical switch or the like is provided in the middle of the scallop transfer hose 84 for detecting passage of the closed-shell muscle 2a. The means 88 is operable.

As shown in FIG. 1, the shell collecting means 88 includes six sets of collecting cylinders each of which can be independently opened and closed by a drive cylinder (reciprocating cylinder) 89 at an intermediate position of the lower shell running surface of the discharge chute 13. Opening / closing valve 90 (1 in FIG. 1)
(Only one set is shown).
Is always in the closed state, and is opened based on the detection result of the sensor 87. That is, when the closed-shell muscle 2a passes through the scallop transfer hose 84, the on-off valve 90 for collection is kept closed and the lower shell 2AB passes through the discharge chute 13 and the discharge chute 13 Discharge conveyor 14 disposed on the lower right side of the
Is to be discharged. When the closed shell muscle 2 a does not pass through the scallop transfer hose 84, the drive on / off valve 89 opens the recovery on-off valve 90, and the open state is opened.
The lower shell 2AB ′ with the closed shell muscle 2a is connected to the discharge chute 13
Is discharged to a collection conveyor 15 disposed below the discharge chute 13 on the way of the discharge chute 13.

Here, the bivalve peeling apparatus 1 of the present embodiment
17 will be described with reference to FIG.

FIG. 17 is a block diagram for explaining an example of a processing procedure for bivalves in the first embodiment of the bivalve peeling apparatus in the order of steps.

As shown in FIG. 17, using the bivalve exfoliating apparatus 1 of the present embodiment, the processing procedure for separating (extracting) the closed shell muscle 2a as a part to be eaten from the scallop 2 in a raw state is as follows. Raw shell supply conveyor 4 that has been previously sorted by the raw shell sorting machine
Supply step 170 for transferring the scallop 2 supplied by the transport means 3 to the transport means 3, a cleaning step 171 for cleaning the surface of the shell 2A of the scallop 2 transported by the transport means 3 with the shell cleaning means 5, and a cleaned scallop 2 Shell 2AA of shell 2A
A heating step 172 in which the closed shell muscle 2a is kept in a raw state by means of the heating means 6 and the joint between the closed shell muscle 2a and the upper shell 2AA is gelled;
The upper shell 2AA is forcibly expanded from the lower shell 2AB around the hinge portion 2B by the forced shell opening means 7, ie, the upper shell 2 of the shell 2A whose mouth is closed.
A shell opening step 173 for forcibly opening the mouth of the scallop 2 by forcibly peeling and separating the AA from the joint portion with the closed shell muscle 2a located on the heating side, and an upper shell 2AA of the scallop 2 with the mouth open
Is removed from the scallop 2 by the shell separating means 8 (separation: unhulling), and the non-edible parts of the scallop 2A except for the closed shell muscle 2a remaining in the lower shell 2AB of the scallop 2 after separating the upper shell 2AA. A non-edible part removing step 175 for separating (removing) the internal organs 2b of the scallop 2 after separating (removing) the internal organs 2b by the internal organ separating means 9; A pre-separation heating step 176 for heating the lower shell 2AB so that the joint between the lower shell 2AB and the lower shell 2AB is in a gel state while maintaining the raw state, and the lower shell 2AB for the scallop 2 heating the lower shell 2AB. Clam muscle 2 composed of scallop 2aa and trabecula 2ab as a part to be eaten from
The edible portion separation step 177 of separating and separating a by using the scallop separation means 11 is sequentially performed.

Next, the operation of the present embodiment having the above-described configuration will be described in the order of processing steps with reference to FIGS.

FIG. 18 is a view similar to FIG. 10 showing essential parts of the forced shell opening means of FIG. 1 in a standby state, and FIG. 19 is a view similar to FIG. 12 showing essential parts of the forced shell opening means of FIG. 1 in a standby state. 20, FIG. 20 is a view similar to FIG. 10 showing a main part of the forced shell opening means of FIG. 1 in an expanded state, FIG. 21 is an explanatory view for explaining the operation of the shell separating means of FIG. 1, and FIG. FIG. 2 is an explanatory view showing a state where one shell is separated by the first shell separating means, FIG.
FIG. 3 is an explanatory view showing a contact state in which the suction nozzle and the shell retainer of the internal organ separating means as the non-edible part separating means of FIG. 1 have contacted the lower shell.

According to the bivalve peeling apparatus 1 of this embodiment, first, a supply step 170 of the scallop 2 is performed.

According to the supply step 170, the scallop 2 previously sorted by the original shell sorter is supplied to the original shell supply conveyor 4
The loading position SP of the transport means 3 of the bivalve peeling device 1
Are sequentially supplied to the vicinity. Then, the scallop 2 supplied to the vicinity of the loading position SP is moved manually or by a robot while the raw shell loading plate 18 constituting a part of the transport means 3 is stopped at the loading position SP. And the supply step 170 ends. At this time, each scallop 2
As shown in FIG. 4, the upper shell 2AA which is one of the substantially flat shells 2A of the two shells 2A is turned up, and the lower shell 2AB which is the other shell having a substantially convex shape is turned down. , Each shell fitting hole 1
9. In other words, scallop 2
Are fitted so that the lower shell 2AB which is comfortable to be seated is supported from below by the outer peripheral edge of each shell fitting hole 19, and is placed on the original shell mounting plate 18. The hinge portion 2 </ b> B of the scallop 2 fitted in each shell fitting hole 19 comes into contact with the stopper 20. Further, the transport means 3 includes a shell washing means 5, a heating means 6, a forced shell opening means 7,
At the positions where the internal organ separating means 9, the pre-separation heating means 10 and the scallop separating means 11 are disposed, the apparatus is intermittently driven so as to stop for about 10 seconds, for example.

Before the scallop 2 is sorted by the original shell sorter, seaweed, seaweed, and the like adhered to the surface of the shell 2A.
It is advisable to remove the deposits such as the barn using a brush, a grindstone, high-pressure water, etc., alone or in combination with a deposit removal device (not shown).

In addition, the case where the body temperature of the scallop 2 is different between the case of using the freshly caught scallop 2 called a shellfish on the day and the case of using the scallop 2 stored for one day in a pool or the like called the next day shellfish. When washing the attached matter, for example, warm water of about 35 ° C. is used to improve the specific heat of the entire shell 2A,
It is preferable that the body temperature (specific heat) of the scallop 2 to be supplied to the bivalve exfoliation apparatus 1 be constant by preheating with low-temperature hot water of about 35 ° C. before supplying the shellfish to the raw shell supply conveyor 4. further,
Even when the body temperature of the scallop 2 is low, as in the case of the scallop 2 in winter, for example, warm water of about 35 ° C. is used.
Before the scallop 2 is supplied to the raw shell supply conveyor 4, the body temperature of the scallop 2 supplied to the bivalve peeling apparatus 1 is increased by preheating the scallop 2 to the raw shell supply conveyor 4 by using low-temperature hot water of about 35 ° C. It should be constant.

Next, after the supply step 170 is completed, the scallop 2 placed on the original shell mounting plate 18 of the transport means 3 is transferred by the drive of the transport means 3 in the shell transfer direction indicated by the arrow A in FIG. Then, it stops at the position where the shellfish washing means 5 is disposed, and the washing step 171 is performed within the stopped time.

According to the washing step 171, when the shell mounting plate 18 on which the scallop 2 is mounted is stopped at the position where the shell washing means 5 is disposed, the cleaning liquid W is supplied from the cleaning liquid jet nozzle 21 to the shell mounting plate 18. Is sprayed toward the surface of the upper shell 2AA and the lower shell 2AB of each scallop 2 placed on the shell 2 as a shower, and the surface of the shell 2A is cleaned, and the cleaning step 171 is completed. At this time, the injection timing of the cleaning liquid W is such that the injection of the cleaning liquid W to the surface of the upper shell 2AA is performed first, and then the lower shell 2AB is set so that the scallop 2 does not fall out of the shell fitting hole 19 of the original shell mounting plate 18. Injection of the cleaning liquid W to the surface is started. The timing of stopping the cleaning liquid W is such that the stopping of the injection of the cleaning liquid W on the surface of the lower shell 2AB is performed first, and then the stopping of the injection of the cleaning liquid W on the surface of the upper shell 2AA is performed. further,
As the cleaning liquid W, water, warm water, or the like is used. Also, like scallop 2 in winter, scallop 2
When the body temperature of the shell 2A is low, it is preferable to use warm water of, for example, about 35 ° C. as the washing liquid W, thereby improving the specific heat of the entire shell 2A. Note that the cleaning liquid W may be constantly sprayed by making the pressure of the cleaning liquid W on the surface of the upper shell 2AA larger than the pressure of the cleaning liquid W on the surface of the lower shell 2AB.

Next, the washing step 171 is completed, and the scallop 2 whose surface of the shell 2 A has been washed by the shell washing means 5.
Is transported in the shellfish transport direction indicated by the arrow A in FIG. 1 by the drive of the transport means 3 and stops at the arrangement position of the heating means 6,
The heating step 172 is performed within the stopped time.

According to the heating step 172, when the original shell mounting plate 18 on which the scallop 2 is mounted is stopped at the position where the heating means 6 is disposed, steam is injected as a heating nozzle disposed above the upper shell 2AA. Upper shell 2AA of scallop 2 from nozzle 23
Is sprayed toward the surface of the upper shell 2AA, and the surface of the upper shell 2AA is heated, and the heating step 172 is completed. At this time, the heating means 6 generates high-temperature steam H toward the surface of the upper shell 2AA.
For a short time, for example, about 4 seconds of steam H at 100 ° C. By applying high-temperature steam H to the surface of the upper shell 2AA for a short time, unlike the conventional case, the closed shell located on the heating side The muscle 2a can reliably maintain a raw state without discoloration, and can maintain a state where the joint portion with the upper shell 2AA of the closed-shell muscle 2a becomes gel-like and the mouth of the scallop 2 is closed. I can do it. Then, by heating the surface of the upper shell 2AA by such a heating method, it is possible to weaken the bonding force at the bonding portion between the upper shell 2AA located on the heating side and the closed-shell muscle 2a.

That is, the joining portion between the inner surface of the upper shell 2AA located on the heating side and the closed-shell muscle 2a is simply brought into close contact with each other. For example, the mouth of the scallop 2 is forcibly expanded by the power of a human hand. Becomes possible.

Note that the temperature and the injection time of the steam H are as follows:
Based on the size and body temperature of the scallop 2, the scallop 2 a keeps its raw state without discoloring white and forcible shell opening means 7.
It is sufficient to adjust so that the expansion can be performed by the above method, and it is not particularly limited to the temperature and the injection time of the present embodiment.

Further, when the size of the scallop 2 is large or when the body temperature of the scallop 2 is low, the injection time of the steam H may be increased. The downtime must be extended. However, if the stopping time of the conveying means 3 is increased, the time required for processing is increased, and the production quantity per unit time is reduced. To avoid this, the steam jet nozzle 23 as a heating nozzle is moved in the shell transfer direction. A plurality is provided along the multi-stage heating. For example, a configuration in which two steam injection nozzles 23 as heating nozzles are provided at intervals along the shell transfer direction and the heating step 172 is repeated twice, for example, a heating step 172 in which steam H at 100 ° C. is injected for about 4 seconds, For example, in order to repeat the heating step 172 of injecting steam H at 100 ° C. for about 2 seconds, for example,
It is preferable to dispose at two places along the shell transfer direction with an interval between the positions where the original shell mounting plate 18 stops (the production tact does not change).

Note that the heating means 6 is moved along the shellfish transfer direction for 2 seconds.
The arrangement of the two places is the bivalve peeling apparatus 1 of the present embodiment.
The length of the conveying means 3 in the shell transfer direction, more specifically, the distance between the input position SP and the discharge position OP is increased, and only two heating means 6 are arranged along the shell transfer direction. Omitted.

Further, in the present embodiment, steam H is used as the heating source, but high-temperature hot water (maximum 100 ° C.) may be used as the heating source, and in particular, the present invention is not limited to this embodiment. is not.

When a higher-temperature heating source such as a flame such as a burner, laser light, infrared light, halogen light, or the like is used, the joining force between the upper shell 2AA located on the heating side and the closed-shell muscle 2a is reduced. Although it can be weakened, it is extremely difficult for the closed-shell muscle 2a to turn white and it is extremely difficult to maintain the raw state of the closed-shell muscle 2a. Is not preferred when further,
When a microwave is used as a heating source, the closed shell muscle 2a
Will be heated, which is also undesirable. Furthermore, as described in JP-A-5-3751, there is no need to make the heating temperature different depending on the surface portion of the upper shell 2AA, so that the configuration of the heating means 6 can be simplified.

Next, the heating step 172 is completed, and the scallop 2 in which the upper shell 2AA placed on the original shell mounting plate 18 of the transport means 3 is heated is driven by the transport means 3 to the arrow A in FIG. Is stopped at the position of the forced shell opening means 7 which is transferred in the shell transfer direction shown in FIG.

According to the shell opening step 173, in the standby state, the forced shell opening means 7 moves the upper suction pad 25A and the lower suction pad 25B from the transfer surface of the original shell mounting plate 18 as shown in FIG. The separated state is maintained.

That is, as shown in FIG. 19, the forced shell opening means 7 in the standby state is located at the forward end where the output shaft 48a of the upper drive cylinder 48 of the upper pad drive means 26A has advanced. 19, the upper support frame 47 is located at an advanced position where the upper support frame 47 is advanced obliquely left and upward in FIG. Due to the advance of the upper support frame 47, the bearing block 44 is located diagonally upper left in FIGS. 18 and 19. When the bearing block 44 advances, the compression coil spring 4
18, the rod 43 is located at the forward position where it has been moved obliquely upward to the left in FIG. 18, and moves the operating plate 34 in a substantially arc-shaped counterclockwise direction around the mounting portion between the fixed plate 40 and each link plate 39. By rotating the upper shell pad 25A together with the pad holder 32 as shown in FIG. At this time, the pad body 32 of the upper suction pad 25A is moved by the rotation support shaft 33 and the spring 38 to the pad holder 32.
And the position and orientation in the free state are controlled so as to be opposed.

As shown in FIG. 18, the lower driving cylinder 54 of the lower pad driving means 26B has an output shaft 54a.
Is located at the retracted end where the lower drive cylinder 54
The output shaft 54a of FIG.
8 is located at a retracted position where it is retracted downward. When the lower support frame 53 retreats, the lower suction pad 25B is positioned below the original shell mounting plate 18.

Then, the forced shell opening means 7 in the standby state is set.
When the original shell mounting plate 18 on which the scallop 2 is placed is stopped at the disposition position, the forced shell opening means 7 is driven and the forced shell opening means 7 is driven.
Is first brought into the close contact state shown in FIGS.

That is, in the forced shell opening means 7, the output shaft 48a of the upper drive cylinder 48 of the upper pad drive means 26A retreats obliquely rightward and downward in FIG.
As shown in FIG. 7, the output shaft 48a of the upper drive cylinder 48 of the upper pad drive means 26A is located at the retreated end. Then, the upper support frame 47 is located at the retreat position where it is retreated diagonally downward and rightward in FIG. 12 by the output shaft 48 a of the upper drive cylinder 48, and the bearing block 44 is inclined diagonally right in conjunction with the retraction of the upper support frame 47. It is located below.
Further, in conjunction with the retreat of the bearing block 44, the rod 43 retreats obliquely rightward and downward through the compression coil spring 46,
The operation plate 34 is rotated clockwise in a substantially arc shape around the attachment portion between the fixed plate 40 and each link plate 39, and the pad holder 32 is moved toward the surface of the upper shell 2AA as shown in FIG. Then, the pad body 28 of the upper suction pad 25A is heated with the urging force of the compression coil spring 46 so that the upper shell 2 is heated.
Press on the surface of AA. At this time, the height position of the surface of the upper shell 2AA with respect to the upper surface of the original shell mounting plate 18 varies depending on the size of the scallop 2, but the difference in the height position of the surface of the upper shell 2AA is caused by the expansion and contraction of the compression coil spring 46. Can be absorbed. That is, by expanding and contracting the compression coil spring 46, it is possible to reliably prevent the upper shell 2AA from being damaged by applying a large pressing force to the surface of the upper shell 2AA.

The lower pad driving means 26 shown in FIG.
B, the output shaft 54a of the lower drive cylinder 54 advances upward, whereby the lower support frame 53
As shown in FIG.
Pushes the pad body 51 of the lower suction pad 25B against the surface of the lower shell 2AB.

The pad bodies 28 and 51 of the upper suction pad 25A and the lower suction pad 25B are
When pressed against the surface of the AA and the lower shell 2AB, a negative pressure is supplied to each hose 30 (see FIG. 9) via a three-way solenoid valve (not shown), whereby the pad body 28 of the upper suction pad 25A is formed. Is on the surface of the upper shell 2AA, and the lower suction pad 25B
The pad body 51 of this embodiment is securely brought into close contact with the surface of the lower shell 2AB, so that the forced shell opening means 7 shown in FIGS. At this time, by forming the pad bodies 28 and 51 from a relatively soft styrene-based thermoplastic resin or silicone rubber as a material, the shell 2 having irregularities is formed.
The negative pressure can be used more efficiently by making the surface of A more securely adhered to the surface. When the styrene-based thermoplastic resin is used, the production of the pad bodies 28 and 51 becomes easy.

When the forcible shell opening means 7 is brought into close contact with the upper drive cylinder 48, the suction pads 25 are brought into close contact with the surfaces of the upper shell 2AA and the lower shell 2AB by negative pressure.
Is advanced to return the upper pad driving means 26 to the standby state. Then, the operation plate 34 is fixed to the fixed plate 40.
And the respective link plates 39 are rotated counterclockwise in a substantially arcuate shape around the attachment site. Then, only the upper shell 2AA of the scallop 2 is rotated by the turning operation of the operation plate 34 in the counterclockwise direction.
The hinge 2B is rotated counterclockwise about the hinge 2B to forcibly expand, and the upper shell 2AA and the closed shell muscle 2a are separated and separated.

That is, since the joint between the inner surface of the upper shell 2AA heated by the heating means 6 and the closed shell 2a located on the heating side is in close contact, the operating plate 34 is rotated counterclockwise. Since the upper shell 2AA and the closed-shell muscle 2a are easily separated and separated by the operation, the mouth of the scallop 2 can be easily forcibly expanded, and as a result, the closed-shell muscle 2a remains in the lower shell 2AB. This expanded state is shown in FIG. The upper surface of the closed-shell muscle 2a peeled off from the upper shell 2AA (the joint surface with the upper shell 2AA) is smooth and glossy, so that the appearance quality of the closed-shell muscle 2a can be improved and the upper shell 2A can be improved.
Since the upper surface of the closed-shell muscle 2a can be separated from A in a state following the irregularities of the inner peripheral surface of the upper shell 2AA (a part of the closed-shell muscle 2a does not remain in the upper shell 2AA).
The yield at the time of separation from A can be improved.

When the mouth of the scallop 2 is opened, a positive pressure is supplied to each hose 30 (see FIG. 9) instead of a negative pressure via a three-way solenoid valve (not shown), and each suction pad 25 is By releasing the close contact state between the upper shell 2AA and the lower shell 2AB and retreating the output shaft 54a of the lower drive cylinder 54, each part of the forced shell opening means 7 returns to the standby state, and the shell opening step 173 ends. I do.

In the heating step 172, the joint between the inner surface of the upper shell 2AA heated by the heating means 6 and the closed-shell streaks 2a located on the heating side is in a close contact state. Since the shell 2A can be forcibly expanded, the forcible shell opening means 7 includes, for example, a configuration in which a plurality of openable / closable claws are provided on the robot arm to forcibly open the mouth of the scallop 2 or the like. Various configurations can be used.

Next, after the shell opening step 173 is completed, the scallop 2 with the upper shell 2AA opened on the original shell mounting plate 18 of the transport means 3 is driven by the drive of the transport means 3 as shown by an arrow A in FIG. While being conveyed in the shellfish transfer direction shown and stopped at the position where the internal organ separating means 9 is disposed, a shell removing step 174 by the shell separating means 8 is performed.

According to the shelling step 174, the scallop 2 whose mouth has been opened by the forced shell opening means 7 is placed on the original shell mounting plate 18
While being transported by the transport means 3 in the shell transport direction indicated by the arrow A in FIG. 1 and stopping at the position where the internal organ separating means 9 is disposed, as shown in FIG. 8 comes into contact with the tip of the separation plate 55. Then, with the movement of the original shell mounting plate 18, the lower shell 2AB holds the position placed on the original shell mounting plate 18 by the hinge portion 2B abutting against the stopper 20, as shown in FIG. ,
Only the upper shell 2AA is further rotated counterclockwise about the hinge 2B and expanded. In addition, the plate 1
When the upper shell 2AA is pushed beyond the limit by the movement of the upper shell 2AA, the upper shell 2AA is separated from the lower shell 2AB and falls off, and the shell removing step 174 is completed. And shelling step 17
As shown in FIG. 22, the scallop 2 which has completed 4 is a lower shell 2A with a closed shell 2a or the like among the two shells 2A.
Only B is transferred by the original shell mounting plate 18 to the position where the internal organ separating means 9 is disposed. Further, the separated upper shell 2AA is dropped onto the shell discharge conveyor 12 as shown in FIG. 1, conveyed, and collected in a desired container (not shown).

Next, the shell removing step 174 is completed, and the original shell mounting plate 18 on which the scallop 2 (the lower shell 2AB with the closed shell muscle 2a or the like) from which the upper shell 2AA has been separated by the shell separating means 8 is placed. Is transported by the transport means 3 in the shellfish transport direction indicated by the arrow A in FIG. 1 and stops at the position where the internal organ separating means 9 is disposed, and the non-edible portion removing step 175 is performed during the stopped time.

According to the non-edible portion removing step 175, when the shellfish mounting plate 18 stops at the position where the internal organ separating means 9 is disposed,
The lower frame driving cylinder 69 of the internal organ separating means 9 is driven, the output shaft 69a of the lower frame driving cylinder 69 contracts and retreats, and the lower frame 67 is lowered downward in FIG. By the lowering of the lower frame 67, both the suction nozzle 58 and the shell retainer 76 are lowered, and the suction nozzle 58 abuts on the inner surface of the lower shell 2AB with the urging force of the compression coil spring 81, and the suction port 59 is closed. Of the lower shell 2AB with the urging force of the compression coil spring 78. At this time, the suction nozzle 58 and the shell holder 76 are both brought into contact with the lower shell 2AB with the urging force of the compression coil springs 81 and 78, so that the lower shell 2AB is damaged due to excessive contact force being applied to the lower shell 2AB. Can be prevented. FIG. 23 shows a contact state in which the suction nozzle 58 and the shell holder 76 are in contact with the lower shell 2AB.

Also, in conjunction with the lowering of the lower frame 67,
A negative pressure is supplied to the internal transfer hose 64 and the suction nozzle 58 is supplied.
The internal organs 2b, such as the back and the string, which are joined around the closed shell muscle 2a surrounded by the suction port 59, are about to be sucked by the negative pressure. At this time, the upper frame driving cylinder 83 is driven to expand and contract so as to raise and lower the output shaft 83a in the vertical direction, whereby the suction nozzle 58 moves so as to vibrate in the vertical direction, and the tip of the suction nozzle 58 is moved downward. It moves toward and away from the inner surface of the shell 2AB. The movement of the suction nozzle 58 toward and away from the inner surface of the lower shell 2AB causes the closed shell muscle 2a to move.
Changes the suction force to the surroundings of the body, which causes
Vibration can be applied to the internal organ 2b joined to the periphery of the internal organ 2b, that is, since the internal organ 2b moves, the internal organ 2b
The internal organ 2b can be more easily separated from the closed-shell muscle 2a as compared with the case where a constant suction force is applied to the internal muscle 2a.
Further, the internal organ 2b separated from the closed core muscle 2a is sucked from the suction port 59 of the suction nozzle 58, and the internal organ transfer hose 6
4 to the chamber 65. In other words, the internal organs 2b around the closed core muscle 2a can be sucked and separated by the internal organ separating means 9, and only the closed core muscle 2a can be left on the inner surface of the lower shell 2AB.

When the internal organ 2b is separated from the closed core muscle 2a, the supply of the negative pressure to the internal organ transfer hose 64 is stopped, and the driving of the upper frame driving cylinder 83 is stopped. Then, by driving the lower frame driving cylinder 69 to raise the output shaft 69a of the lower frame driving cylinder 69, each part returns to the original state, and the non-edible part removing step 175 is completed. When the supply of the negative pressure to the internal transfer hose 64 is stopped, a positive pressure is supplied to the chamber 65, and the opening / closing door 66 opens and closes so that the internal organ 2b in the chamber 65 can be transferred to a container or a conveyor (not shown). ).

The tip of the suction nozzle 58 is connected to the lower shell 2AB.
It is also possible to adopt a configuration in which the tip of the suction nozzle 58 is simply brought into contact with the inner surface of the lower shell 2AB without applying a contact / separation movement to the inner surface of the lower shell 2AB to apply a constant suction force to the internal organ 2b.

Then, the non-edible portion removing step 175 is completed.
The scallop 2 from which the upper shell 2AA and the internal organs 2b placed on the original shell mounting plate 18 of the transport means 3 have been removed is transported by the drive of the transport means 3 in the shell transport direction shown by the arrow A in FIG. It stops at the position where the pre-separation heating means 10 is provided, and the pre-separation heating step 176 is performed within the stopped time. This pre-separation heating step 176 heats the surface of the shell 2A of the scallop 2 in the same manner as the heating step 172.

According to the pre-separation heating step 176, when the scallop 2 from which the upper shell 2AA and the internal organs 2b have been removed stops at the position where the pre-separation heating means 10 is provided, the heating nozzle disposed below the lower shell 2AB Steam injection nozzle 23 as
Water vapor H is sprayed toward the surface of the lower shell 2AB from
The surface of the lower shell 2AB is heated, and the pre-separation heating step 176 ends. At this time, similarly to the heating means 6, the pre-separation heating means 10 jets high-temperature steam H toward the surface of the lower shell 2AB for a short time, for example, 100 ° C steam H for about 4 seconds. As a result, the closed-shell muscle 2a located on the heating side surely maintains a raw state without discoloration, and
The joint portion between the closed-shell muscle 2a and the lower shell 2AB can be formed into a gel. And by heating the surface of the lower shell 2AB by such a heating method,
The joining force at the joining portion between the lower shell 2AB and the closed-shell muscle 2a located on the heating side can be weakened. That is, the joining portion between the inner surface of the lower shell 2AB located on the heating side and the closed-shell muscle 2a is in a mere contact state, and for example, the closed-shell muscle 2a is easily and easily peeled off from the lower shell 2AB by the force of a human hand. And separate them.

Note that the temperature and the injection time of the steam H are as follows:
Based on the size and body temperature of the scallop 2, it may be adjusted so that the scallop 2a remains in a raw state without discoloring white and the closed-shell muscle 2a can be forcibly and easily peeled off from the lower shell 2AB. The temperature and the injection time of the present embodiment are not limited.

By setting the pressure of the water vapor H to, for example, about 2 kg / cm 2, it is possible to prevent the lower shell 2 AB from floating from the original shell mounting plate 18. Note that the pressure of the water vapor H depends on the size of the scallop 2 and the closed-shell muscle 2a and the internal organ 2 depending on the place of production.
The weight of b may be adjusted so that the lower shell 2AB can be prevented from rising from the original shell mounting plate 18.

Then, the pre-separation heating step 176 is completed.
The scallop 2 (the scallop 2 in which the bonding strength between the lower shell 2AB and the closed-shell muscle 2a is weakened) with the lower shell 2AB placed on the original shell mounting plate 18 of the transport means 3 is heated. By the driving, the edible portion is transferred in the shellfish transfer direction indicated by arrow A in FIG. 1 and stopped at the position where the scallop separating means 11 is provided, and the edible portion separation step 177 is performed within the stopped time.

According to the edible portion separating step 177, when the original shell mounting plate 18 is stopped at the position where the scallop separating means 11 is disposed, the edible portion separating means 11 having the same structure as the visceral separating means 9 lowers it. The scallop 2aa left on the inner surface of the shell 2AB
And the closed-shell muscle 2a composed of the trabeculae 2ab can be automatically separated and separated from the lower shell 2AB. Then, the closed shell muscle 2a separated from the lower shell 2AB is sucked from the suction port 59 of the suction nozzle 58, and is conveyed to the chamber 85 via the scallop transfer hose 84 as shown in FIG. That is, by the scallop separating means 11, the closed shell muscle 2
a can be easily sucked and separated. Then, when the closed-shell muscle 2a is separated from the lower shell 2AB, each part of the scallop separating means 11 returns to the original state, and the edible part separating step 177 ends. When the supply of the negative pressure to the scallop transfer hose 84 is stopped, the positive pressure is supplied to the chamber 85 and the opening / closing door 86 opens and closes to open the chamber 8.
The closed shell 2a in the inside 5 is discharged to a container or a conveyor (not shown).

In the interior of the chamber 85, as shown by the imaginary line in FIG. 1, the closed shell muscle 2a passing through the scallop transfer hose 84 collides with the side wall inside the chamber 85, thereby damaging the closed shell muscle 2a. In order to prevent the damage, it is preferable to provide a damage prevention member 91 formed in a substantially curtain shape so as to receive the closed shell 2a that has passed through the scallop transfer hose 84. As the damage preventing member 91, a film-like, sheet-like, plate-like, or sponge-like material made of fluororesin, silicone rubber, or the like, which is safe for food hygiene, may be used.

The lower surface of the closed-shell muscle 2a separated from the lower shell 2AB and separated from the lower-shell 2AB (the joint surface with the lower shell 2AB) is smooth and glossy, so that the appearance quality of the closed-shell muscle 2a can be improved. Since the lower surface of the closed-shell muscle 2a can be separated from the lower shell 2AB in a state following the irregularities of the inner peripheral surface of the lower shell 2AB (part of the closed-shell muscle 2a does not remain in the lower shell 2AB), the closed-shell muscle 2a can be separated. Can be improved when separating from the shell 2A.

In the present embodiment, a sensor 87 for detecting passage of the closed-shell muscle 2a is provided in the middle of the scallop transfer hose 84, and this sensor 87 is connected to the closed-shell muscle 2a.
When the passage of a is not detected, the drive cylinder 89 of the shellfish collecting means 88 is driven to open the collection on-off valve 90 as shown in FIG. 1, and the lower shell 2AB 'where the closed shell muscle 2a remains remains.
While passing through the discharge chute 13
Can be discharged to the collection conveyor 15 disposed below the collection conveyor 15. This is provided in the case where it is not possible to separate 100% of the closed-shell muscle 2a from the lower shell 2AB due to characteristics such as the production area (harvest area) and freshness of the scallop 2. That is, in the present embodiment, the lower shell 2AB ′, from which the closed shell muscle 2a could not be separated for some reason, can be separated and collected.

Then, the edible portion separation step 177 is completed,
The scallop 2 having only the lower shell 2AB placed on the original shell mounting plate 18 of the transporting means 3 is driven by the transporting means 3 as shown in FIG.
At the discharge position OP
At the time, the shell is detached from the shell fitting hole 19 of the shell mounting plate 18, passes through the discharge chute 13, and is discharged onto the shell discharge conveyor 14.

Therefore, according to the bivalve peeling apparatus 1 of this embodiment, the upper shell 2A of the scallop 2 is provided with the heating means 6.
Since the surface of A can be heated so as to keep the closed-shell muscle 2a in a raw state, the discoloration of the closed-shell muscle 2a can be reliably prevented, and the quality for use in raw food can be reliably maintained. The upper shell 2 is provided with such a heating means 6.
By heating the surface of the AA, the bonding force between the upper shell 2AA and the closed-shell muscle 2a is weakened, that is, the bonding portion between the inner surface of the upper shell 2AA located on the heating side and the closed-shell muscle 2a is simply adhered. As a result, the mouth of the scallop 2 can be easily and forcibly and automatically opened by the forced shell opening means 7.

Further, by heating the pre-separation heating means 10 so as to maintain the closed shell muscle 2a in a raw state, the bonding force between the lower shell 2AB and the closed shell muscle 2a is weakened, that is, the heating is performed. The joint portion between the inner surface of the lower shell 2AB located on the side and the closed-shell muscle 2a is in a mere contact state, and the closed-shell muscle 2a can be easily and forcibly and automatically separated from the lower shell 2AB. Therefore, it is possible to efficiently separate the closed shell muscle 2a of the scallop 2 while maintaining the quality for use in the raw food.

That is, the bivalve exfoliation apparatus 1 of the present embodiment takes out the closed-shell muscle 2a as a portion to be eaten from the two shells 2A before opening (expanding) the mouth of the two shells 2A (opening). Before the separation, the closed muscle 2a is surely kept in a raw state, so that the joint strength between the shell 2A and the closed muscle 2a can be reliably weakened.

Further, the closed-shell muscle 2a separated from the shell 2A
Is smooth and glossy, the appearance quality of the closed-shell muscle 2a can be improved, and all of the closed-shell muscle 2a can be separated from the shell 2A (the closed-shell muscle is attached to the shell 2A). 2a), the yield (recovery rate) when the closed-shell muscle 2a is separated from the shell 2A can be reliably improved, that is, the yield can be made 100%. The conventional closed-shell muscle 2a
According to experiments, the yield was about 98%, and a loss of about 2% occurred.

[0149] Further, at the edge of the joint surface of the closed-shell muscle 2a separated from the shell 2A with the shell 2A, a stubborn part that could not be obtained conventionally can be left, and the texture of the closed-shell muscle 2a used for raw eating and The taste can be improved.

Furthermore, the joint surface of the closed-shell muscle 2a separated from the shell 2A with the shell 2A does not absorb water.
The water used for trimming (cleaning work for removing extraneous matter such as fine internal organs attached to a part to be eaten for food) is applied to the closed-shell muscle 2a after being separated from A. It is absorbed into the inside from the surface and the taste decreases,
When the closed-shell muscle 2a that has been frozen and stored is thawed, it is possible to reliably prevent the inconvenience that the delicious ingredient flows out together with the absorbed water, which is called drip, and the closed-shell muscle 2a
The commercial value of a can be reliably improved.

Further, in the bivalve exfoliating apparatus 1 of the present embodiment, since the closed shell muscle 2a can be automatically separated from the lower shell 2AB, the number of personnel required for separating the closed shell muscle 2a can be reduced. In addition, even when the scallop 2 is landed in large quantities, the scallop 2 can be processed quickly.

In the present embodiment, the scallop 2 is used as the bivalve and the scallop 2 is used to separate the closed-shell muscle 2a used for eating raw food. Of course, the present invention can be applied to the separation of shellfish, which is a site eaten by various kinds of bivalves such as shellfish.

[0153]

As described above, the shell of the present invention retains the raw state, and the joint surface that has been bonded to the original shell is covered with the membrane, so that the shell itself maintains the raw state. Because it is suitable for raw food, and because the joint surface with the shell is covered with a membrane, even once frozen,
There is no drip at the time of thawing, and there is no danger of the delicious ingredients flowing out.

That is, according to the shell of the present invention, the two joint surfaces of the edible portion separated from the shell and the shell are both smooth, glossy, and glossy with a film. The appearance quality of a part to be eaten can be improved.
And, at the edge of the joint surface of the shell and the shell, there is a part with a firm texture, and this part is chewy,
The texture and taste can be improved. Furthermore, the joint surface between the shell and the shell, which has been separated from the shell, has a film and does not absorb water, so that the water used for washing work etc. eats from the joint surface after being separated from the shell. It has a remarkable effect that it is possible to surely prevent the inconvenience that the umami component leaks out together with the drip when the eating part that has been absorbed is absorbed inside the part and the frozen eating part is thawed. be able to.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of an embodiment of a bivalve peeling apparatus for manufacturing a scallop shell, which is an embodiment of a shell according to the present invention.

FIG. 2 is a plan view showing the conveying means of FIG. 1;

FIG. 3 is a plan view of the original shell mounting plate of FIG. 2;

FIG. 4 is an enlarged sectional side view of FIG. 3;

5 (a) to 5 (c) show an attached state of a sensor for detecting the traveling of the original shell mounting plate of the transport means of FIG. 1; FIG. 5 (a) is a plan view of a main part, and FIG. ) Is a front view of the main part,
(C) is a side view of the main part.

FIG. 6 is a side view showing the main part of the shellfish washing means of FIG. 1 as viewed from the downstream side in the shellfish transfer direction.

FIG. 7 is a view similar to FIG. 6, showing the main part of the heating means of FIG. 1 viewed from the downstream side in the shellfish transfer direction.

FIG. 8 is a side view showing a main portion of the forced shell opening means in FIG. 1 in a suction state as viewed from the downstream side in the shellfish transfer direction.

9 is a partially enlarged front view of the forced shell opening means in FIG. 8 in a close contact state.

FIG. 10 is a partially enlarged front view showing a main part of a pad driving means of the forced shell opening means of FIG. 8;

11 is a partial side view of a main part of FIG. 10;

12 is a partially enlarged front view showing an arrangement state of an upper drive cylinder in a state in which the forced shell opening means in FIG.

FIG. 13 is an enlarged front view showing a main part of the shell separating means of FIG. 1;

FIG. 14 is a view similar to FIG. 6, showing the main part of the internal organ separating means as the non-edible part separating means of FIG. 1 viewed from the downstream side in the shellfish transfer direction.

FIG. 15 is a partially enlarged side view of FIG. 14;

FIG. 16 is a partially enlarged front view of FIG. 14;

FIG. 17 is a block diagram for explaining an example of a processing procedure for bivalves in the first embodiment of the bivalve peeling apparatus in the order of steps;

FIG. 18 is a view similar to FIG. 10, showing a main part of the forced shell opening means in FIG. 1 in a standby state;

19 is a view similar to FIG. 12, showing a main part of the forced shell opening means in FIG. 1 in a standby state;

FIG. 20 is a view similar to FIG. 10, showing a main part of the forced shell opening means of FIG. 1 in an expanded state.

FIG. 21 is an explanatory view for explaining the operation of the shell separating means of FIG. 1;

FIG. 22 is an explanatory view showing a state where one shell is separated by the shell separating means of FIG. 1;

FIG. 23 is an explanatory view showing a contact state in which the suction nozzle and the shell retainer of the internal organ separating means as the non-edible part separating means of FIG. 1 are in contact with the inner surface of the lower shell.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bivalve peeling apparatus 2 Scallop (as a bivalve) 2A Shell 2AA Upper shell 2AB Lower shell 2a Closed-shell muscle 2aa Scallop 2ab Small pillar 2b Built-in 2B Hinge part 3 Transport means 5 Shell washing means 6, 6A Heating means 7 , 7A forced shell opening means 8 shell separating means 9 viscera separating means (as non-edible part separating means) 10 pre-separation heating means 11, 11A scallop separating means as edible part separating means

Claims (1)

[Claims] 1. In a raw shell consisting of bivalves and a shell which is a part to be eaten separately from a non-eating part, a joint surface which is kept in a raw state and bonded to the raw shell is covered with a membrane. A shellfish characterized by the following.