JPH0767520A - Method for extracting oyster meat and apparatus therefor - Google Patents

Abstract

PURPOSE:To extract oyster meat from oyster shell without damaging the oyster meat by inserting a flexible cutter containing a magnetic material into the opening of oyster shell toward the ligament and pushing the cutter into the oyster while closely contacting the cutter with the inner surface of the oyster shell by a magnetic force applying means. CONSTITUTION:A flexible cutter 7 containing a magnetic material is removably inserted into the opening of oyster shells 1, 2 toward the ligament 5 and pulled upward with an electromagnet 6 to closely contact the cutter 7 with the oyster shell 1. The ligament is cut by further pushing the cutter into the oyster to separate the oyster meat 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for taking out oysters of cultured oysters mechanically, at high speed and continuously, without damaging the body.

[0002]

2. Description of the Related Art Conventionally, as a technique relating to a method or a device for taking out oysters, the techniques described in JP-A-4-16144 and JP-A-3-201935 have been known. In the prior art, the method of cutting the oyster shell from the inside of the oyster shell and taking out the oyster meat is to discharge air or water to the oyster shell and move the oyster shell downward to open the oyster shell. It was configured to be exposed to the part. However, in this method, the oysters are moved away from the oyster shell by the discharge of air or water, and then the cutter is inserted toward the scallop, so that the cutter is brought into contact with the inner surface of the oyster shell by a contact force. However, if the oyster shells were improperly fixed on the fixing table during the work, the cutter could damage the oyster meat and there was a problem in practical use.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, in which the cutter does not touch the inner surface of the oyster shell by magnetic force without being affected by gravity, and the oyster meat itself is not damaged. Moreover, it is intended to increase the allowable error in the fixing direction of the oyster shell on the fixing base during the work, thereby improving the workability.

[0004]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. That is, a flexible cutter containing a magnetic material such as iron, nickel, or chromium in the opening of the oyster shell,
It can be inserted and removed in the direction of the scallop in the oyster shell, and is excited by magnetic force urging means from the upper and lower surfaces of the cutter to bring the upper and lower surfaces of the cutter into contact with the inner surface of the oyster shell, and further the tip of the cutter to the scallop. It is configured so that it can be cut into the oyster shell and the oyster meat can be cut off from the inner surface of the oyster shell.

Further, a cutter containing a magnetic material such as iron or chromium can be inserted into and removed from the opening of the oyster shell fixed to the oyster shell fixing base, and the cutter is excited by magnetic force urging means in the upper and lower directions of the cutter. The cutter is a thin blade so as to follow the inner surface of the oyster shell, and the magnetic force urging means is used to bring the thin blade cutter into contact with the inner surface of the oyster shell.

Further, a cutter support base is provided in the vicinity of the periphery of the oyster shell fixing base, and a thin blade is driven on the cutter supporting base so as to freely move in and out toward the rotation center side of the oyster shell fixing base, and the thin blade cutter is attached to the cutter support base. A vibrator for oscillating is provided, and an oyster shell fixing base rotating motor for driving the oyster shell fixing base at a predetermined angle in a stopped state of the vibrator is provided, and the oyster shell fixing base is on the upper surface of the oyster shell fixing base according to the intermittent drive of the motor. An oyster fixing jig that is recessed in a radial direction at a plurality of locations can be driven so as to match the cutter position.

Further, the oyster shell pressing air cylinder, the thin blade driving vibrator, and the thin blade reciprocating air cylinder are provided with a control panel 26 and a solenoid valve 25 for sequence control.

[0008]

Since the present invention is configured as described above, it has the following effects. That is, since the cutter is composed of thin blades and is urged upward by an electromagnet,
The thin blade cutter 7 is inserted under the upper oyster shell 1 and is in close contact with the lower surface of the upper oyster shell 1.
There is no longer any damage to the oyster meat 3 by protruding in the direction of. Further, the thin blade cutter 7 can be further effectively applied with an attracting force by the electromagnet 6 by vibrating it by the vibrator 14, so that the thin blade cutter 7 is less likely to project to the oyster body 3 side. The thin blade cutter 7, the oyster fixing jig 9, and the electromagnet 6 configured as described above
By arranging a plurality of sets of the above on the oyster shell fixing base 16 and providing an automatic control mechanism, the operator can continuously and automatically take out the oysters.

[0009]

EXAMPLES Next, examples will be described. 1 is a plan view of an oyster extract device of the present invention, FIG. 2 is an enlarged side view of a unit portion of the same oyster extract device, FIG. 3 is an enlarged side sectional view showing the operation of the present invention, and FIG. 5 is a side sectional view showing the operation of the oyster extract device, FIG. 5 is a drawing showing a circuit of a solenoid valve, an air cylinder, and an air vibrator, and FIG. 6 is a sectional view showing a temporary locking mechanism of an oyster shell fixing base.

Referring to FIG. 4, the details of a conventional oyster unloading method and oyster extracting device will be described. Oyster is top oyster shell 1
And the lower oyster shell 2, the upper scallop 5 is interposed between the oyster shell 3 and the upper oyster shell 1, and the lower scallop pillar 4 is interposed between the oyster shell 3 and the lower oyster shell 2. It is equipped. The portion of the upper scallop 5 is cut with a cutting blade and opened to take out the oyster meat. Conventionally, the high-pressure air or high-pressure water stream is sprayed from between the slightly open upper and lower oyster shells 1 and 2, and the oyster body 3 is retracted to the lower side of the lower oyster shell 2 side, and a hard blade is placed in the open space. The cutter 13 constituted by the above was inserted to the side of the upper scallop 5, and at this position, the cutter 13 was moved while swinging in the left-right direction along the inner surface of the upper oyster shell 1 to cut the upper scallop 5.

However, in the above-mentioned conventional method, the cutter 13 constituted by the hard blade comes into contact with the oyster 3 and the oyster 3
There was a problem that it hurt and reduced the product value. The present invention solves such a problem of the conventional technique.

Referring to FIG. 1, a method for taking out oysters and the overall structure of the taking-out apparatus will be described. The point that the thin blade cutter 7 is inserted in a state where the high pressure air or the high pressure water jet is ejected and the oyster body 3 is retracted downward is the same as in the prior art. The outer peripheral base 20 is cut into a cylindrical shape, and the oyster shell fixing base 16 formed of a disk plate is supported inside by bearings. The oyster shell fixing base 16 is configured to be intermittently rotated by the intermittent drive motor 17. The oyster shell fixing base 16
Since it needs to be fixed at a fixed position after rotation with the cutter support base 18, a detent mechanism is formed around the oyster shell fixation base 16 as shown in FIG. The detent mechanism is composed of a detent ball 20 and a detent spring.

An air cylinder 15 and an air vibrator 14 are arranged on the cutter support base 18. The air cylinder 15 serves to fix the oyster shells 1 and 2 together with the oyster fixing jig 9. The oyster fixing jig 9 is a biasing spring 19 arranged in the guide tube 11 so that the oyster shell 1
It is pressed in the direction of 2. On the other hand, the air cylinder 15
When the oyster shells 1 and 2 are placed on the oyster shell fixing base 16, the oyster shells 1 and 2 function to push in together with the air vibrator 14 while vibrating the thin blade cutter 7.

An electromagnet 6 and an air cylinder 8 for moving the electromagnet 6 up and down are arranged above the oyster shells 1 and 2. High-pressure air is supplied to the air cylinder 8 from an air pipe 10. Further, as shown in FIG. 5, when the supply of high pressure air to the air cylinder 8, the air vibrator 14 and the air cylinder 15 is stopped, a sequence control circuit is provided in the control panel 26, and compressed air from the high pressure air pump CMP is supplied. The direction is controlled by the solenoid valve 25, and the air is supplied to the air cylinder 8, the air vibrator 14, and the air cylinder 15.

Next, referring to FIG. 2 and FIG. 3, the essential parts of the method for taking out oyster meat and the device for taking out the same according to the present invention will be described. The oyster shells 1 and 2 arranged on the oyster shell fixing base 16 between the oyster shell fixing jig 9 and the air vibrator 14 have the oyster shell fixing jig 9 and the air vibrator without any special fixing device. 1
The position is fixed by 4 and the air cylinder 8. Then, the air vibrator 14 gives the thin blade cutter 7 a vibration with a frequency of several hertz or less and an amplitude of about 5 mm or less, and the air cylinder 15 vibrates the air vibrator 14 to slightly open the oyster shells 1 and 2. The thin blade cutter 7 is inserted from the portion. And the present invention is different from the cutter 13 in which the thin blade cutter 7 is configured by a conventional hard blade,
There is a feature in that it is a very thin blade.

The thin blade cutter 7 of the present invention is inserted into the slightly open openings of the oyster shells 1 and 2 while being vibrated by the air vibrator 14.
Is a flexible cutter containing a magnetic material such as iron, nickel and chromium. Therefore, when the oyster shell is inserted and removed toward the scallop direction while vibrating by the air vibrator 14, the magnetic force urging means is excited and attracted from the upper surface direction of the cutter, and the lateral surface of the cutter is attached to the inner surface of the oyster shell. The oyster meat is cut off from the inner surface of the oyster shell by making the tip of the cutter project into the scallop so that it can be cut.

Further, the intermittent drive motor 17 is provided with a cutter support base 18 near the periphery of the oyster shell fixing base 16 and is arranged on the cutter support base 18. The oyster shell is provided with an air vibrator 14 that drives the thin blade cutter 7 to freely move in and out toward the center of rotation of the oyster shell fixing base and that vibrates the thin blade cutter 7 in the forward and backward directions. An oyster shell fixing base rotation motor that drives the fixing base at a predetermined angle is provided, and according to the intermittent drive of the motor,
The oyster shell fixing base is configured to be drivable so that the oyster receiving recesses formed in the upper surface of the oyster shell fixing recess at a plurality of positions coincide with the cutter position.

[0018]

Since the present invention is configured as described above, it has the following effects. That is, as in claim 1,
A flexible cutter containing a magnetic material such as iron, nickel, or chrome can be inserted into or removed from the opening of the oyster shell toward the scallop in the oyster shell, and magnetized by the magnetic force urging means from the top and bottom directions of the cutter. Then, the upper and lower surfaces of the cutter are brought into contact with the inner surface of the oyster shell, the tip of the cutter is further pierced so that it can be cut toward the scallop, and the oyster meat is configured to be cut off from the inner surface of the oyster shell, so the cutter is always an electromagnet. Since it is pulled upward by 6 against gravity, the cutter 13 composed of a hard blade does not bend due to gravity and damages the oyster 3 as in the conventional case, and the commercial value of the oyster 3 is reduced. Was able to be stopped.

As described in claim 2, a cutter containing a magnetic material such as iron or chromium can be inserted into and removed from the opening of the oyster shell fixed to the oyster shell fixing base, and magnetic force urging means is provided in the upper and lower surfaces of the cutter. Excited, the cutter was made into a thin blade along the inner surface of the oyster shell, and the magnetic force urging means was used to bring the thin blade cutter into contact with the inner surface of the oyster shell, so that the thin blade of the cutter comes into close contact with the inner surface of the upper oyster shell 1. Therefore, the thin blade cutter 7 does not bend toward the oyster 3 side due to gravity, and the oyster 3 can be taken out safely.

According to a third aspect of the present invention, a cutter support base is provided in the vicinity of the peripheral edge of the oyster shell fixing base, and a thin blade is driven on the cutter supporting base so as to move in and out toward the rotation center side of the oyster shell fixing base, and A vibrator for oscillating the thin blade cutter is provided, and an oyster shell fixing base rotating motor for driving the oyster shell fixing base at a predetermined angle in a stopped state of the vibrator is provided with an oyster shell fixing base, depending on the intermittent drive of the motor. Is configured so that the oyster fixing jig, which is recessed in the radial direction at multiple points on its upper surface, can be driven so that it coincides with the cutter position. This makes it easier to contact them and reduces the possibility of scratching the oyster meat 3. Further, by disposing a plurality of thin blade cutters 7 and oyster fixing jigs 9 and rotating the oyster shell fixing base 16, it is possible to continuously take out the oysters.

Since the oyster shell pressing air cylinder, the thin blade driving vibrator, and the thin blade reciprocating air cylinder are provided with the control panel 26 and the solenoid valve 25 for sequence control, the operator of the oyster shell fixing base 16 is provided. By simply placing oysters on top, it became possible to take out the oysters automatically and continuously.

[Brief description of drawings]

FIG. 1 is a plan view of an oyster extract device of the present invention.

FIG. 2 is an enlarged side view of the unit portion of the oyster extract device.

FIG. 3 is an enlarged side sectional view showing the operation of the present invention.

FIG. 4 is a side sectional view showing the operation of a conventional oyster extract device.

FIG. 5 is a drawing showing a circuit of a solenoid valve, an air cylinder, and an air vibrator.

FIG. 6 is a sectional view showing a temporary locking mechanism of the oyster shell fixing base.

[Explanation of symbols]

 1 Upper oyster shell 2 Lower oyster shell 3 Oyster shell 4 Lower scallop 5 Upper scallop 6 Electromagnet 7 Thin blade cutter 8 Air cylinder 9 Oyster fixing jig 13 Cutter composed of hard blades

Claims (4)

[Claims] 1. A flexible cutter containing a magnetic material such as iron, nickel and chromium can be inserted into and removed from the opening of the oyster shell in the direction of the scallop in the oyster shell, and the magnetic force is applied from the upper and lower surfaces of the cutter. Excited by a biasing means, the upper and lower surfaces of the cutter are brought into contact with the inner surface of the oyster shell, and the tip of the cutter is pierced so that it can be cut toward the scallop, and the oyster meat is cut off from the inner surface of the oyster shell. And method for extracting oysters, characterized by: 2. A cutter containing a magnetic material such as iron or chromium can be inserted into and removed from the opening of the oyster shell fixed to the oyster shell fixing base, and the cutter is excited by magnetic force urging means in the upper and lower directions of the cutter, A method for removing oyster meat and a device for removing the oyster meat, characterized in that the cutter has a thin blade along the inner surface of the oyster shell, and the magnetic force urging means is used to bring the thin blade cutter into contact with the inner surface of the oyster shell. 3. A cutter support base is provided in the vicinity of the periphery of the oyster shell fixing base, and a thin blade is driven on the cutter supporting base so as to be able to move in and out toward the rotation center side of the oyster shell fixing base, and the thin blade cutter is attached to the cutter supporting base. A vibrator for oscillating is provided, and an oyster shell fixing base rotating motor for driving the oyster shell fixing base at a predetermined angle in a stopped state of the vibrator is provided, and the oyster shell fixing base is on the upper surface of the oyster shell fixing base according to the intermittent drive of the motor. An oyster take-out device, characterized in that an oyster fixing jig, which is provided in a radial direction at a plurality of locations, can be driven so as to match the cutter position. 4. An oyster take-out device comprising an oyster shell pressing air cylinder, a thin blade driving vibrator, and a thin blade reciprocating air cylinder provided with a control panel for sequence control and a solenoid valve.