JPH053751A - Apparatus for removing shell of bivalve - Google Patents

Abstract

PURPOSE:To enable automatic removal of shell from bivalve such as scallop without using manual tools such as a lever. CONSTITUTION:The lower shell 26B of a scallop 26 is heated to open the lower shell 26B. The lower shell 26B is pushed open with an opener 28 to remove the shell of the bivalve by transferring the scallop 26 with a conveyor in the opened state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shelling device for bivalves such as scallops.

[0002]

2. Description of the Related Art Conventionally, the work of removing a scallop from a bivalve shell, for example, a scallop, has been performed manually with a thin metal fitting such as a knife.

In some cases, a water jet is used to separate the scallop from the shell.

Further, there is one in which the end portion of the shell is cut and opened within a range that does not damage the contents, and the shell is opened from this opening.

[0005]

However, the efficiency is low in the case of manual work, and especially when a large amount of scallops are landed at one time, the work is delayed and the freshness of raw shellfish decreases. There is a problem that it ends up.

Further, the method using the water jet has a problem that the scallops that are commercial products may be damaged by a strong water flow.

[0007] Further, in the case where the shell is cut and opened, there is a problem in that post-treatment is difficult because cutting waste adheres to the scallop.

The present invention has been made in view of the above-mentioned problems of the prior art, and is a bivalve mollusc that can be quickly and easily shelled without damaging the scallop or contaminating it with chips. The purpose is to provide a shelling device.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a transfer means for supporting a bivalve and carrying it in one direction, and a heating means for heating one shell of the bivalve transferred by this transfer means. A shell removing means for holding the other shell on the non-heated side while further transferring the bivalve shell slightly opened by the heating means, and further opening the heated one shell to remove the shell The above object is achieved by a bivalve shell removing device comprising

The bivalve is a scallop, and the heating means is strong at the outer position of the closed muscle, which is an unstretched portion of the scallop,
Alternatively, the one shell may be heated weakly at a position outside the detrusor muscle, which is the barbed muscle.

The thicker shell of the bivalves may be heated by the heating means.

Further, the shell removing means is a laterally V-shaped opening device that spreads forward in the transfer direction, and is opened slightly by heating and is transferred by the transferring means with the opening facing forward. Alternatively, the one shell may be pushed open as the bivalves are transferred while the displacement in the one shell direction is restricted.

Suction means may be provided for sucking and removing the internal organs other than the scallop from the other shell after the one shell is removed by negative pressure.

Further, the suction means may be provided with a circular suction port having an inner diameter slightly larger than the outer diameter of the scallop in the bivalve shell.

Further, the suction means may be provided with a pressing member for pressing the scallops during suction at the center of the circular suction port.

Further, in the circular suction port, a part of the peripheral wall tip may be cut out to form an air vent.

A separating means for injecting a pressure fluid may be provided in a part between the other shell and the internal organs substantially in synchronization with the start of suction by the suction means.

[0018]

In the present invention, while moving a living bivalve in one direction, one shell is heated by the heating means to separate the one shell from the scallop, and the separated shell is It is possible to easily remove the scallops from the remaining shell by pushing open and removing the shells by the shell removing means while transferring by the transfer means.

Therefore, without damaging the scallop,
It has an excellent effect that shelling can be performed efficiently, rapidly and in large quantities.

According to a second aspect of the present invention, the unrestricted muscle portion that mainly generates the force for closing the shell is strongly heated, and the portion of the unrestricted muscle portion that bites into the inner surface of the shell is contracted by heat, and The sphincter muscle portion is released from the shell by releasing the bond between the end portion and the shell and by closely heating the squeeze muscle portion that adheres over a wide area in the center of the shell and closes the shell weakly. It is separated from the inner surface, which allows one shell to be opened efficiently.

According to claim 3, the thicker shell of the bivalve is heated by the heating means. Therefore, when the shell on the side heated by the shell removing means is removed, the shell is It can suppress cracking.

Furthermore, according to claim 4, the heated shell is gradually pushed open while shells are being transferred and the shells are removed, so that the shelling work can be carried out quickly and in large quantities. You can

According to the fifth aspect, the internal organs around the scallops can be suctioned and removed from the remaining shells dehulled by the shell removal means by the suction means, and only the scallops can be easily taken out.

Further, according to the sixth aspect, since the suction means is provided with the circular suction port having an inner diameter slightly larger than the outer diameter of the scallop, the internal organs around the scallop are sucked easily and quickly without damaging the scallop. Can be removed.

Further, according to the present invention, since the circular suction port is provided with the pressing member for pressing the scallop at the center thereof, the scallop may be erroneously sucked even if the negative pressure in the suction means is excessive. Absent.

Further, according to the eighth aspect, since the air suction is formed by cutting out a part of the tip of the peripheral wall of the circular suction port.
When sucking the internal organs around the scallop, the internal organs are sequentially sucked in a ring shape from this air bleeding portion, so it is possible to easily suck the internal organs without applying excessive negative pressure, and the scallops are accidentally sucked. Can be suppressed.

According to the ninth aspect, when the internal organs are sucked by the suction means, the peeling means sprays the pressure fluid onto a part of the surface of the internal organs that is attached to the shell to facilitate smooth and easy peeling of the internal organs. There is.

[0028]

Embodiments of the present invention will be described below with reference to the drawings.

In this embodiment, scallops are used as the bivalves.

As shown in FIGS. 1 and 2, the scallop shelling apparatus 10 according to the present invention is sorted by size with a raw shell sorter (not shown) and transferred from the raw shell feed conveyor 12. A chain conveyor 16 for transferring the raw shellfish to the left in the figure, and above the chain conveyor 16, the shellfish position adjusting machine 14 and the heating means 18 sequentially from the raw shellfish supply side.
The shell removing means 20 and the suction means 22 for sucking and removing the internal organs are arranged.

As shown in FIGS. 3 and 4, the fixed frame 17 provided in large numbers on the rows 16A to 16E of the chain conveyor 16 has a stopper 17A on the rear side with respect to the transfer direction and a front side in the transfer direction obliquely. The stopper 17A is formed with a height of about the thickness of the scallop, and the stopper 17A is displaced from the fixed frame 17 toward the rear while being transferred by the chain conveyor 16. I try not to.

Both ends of each fixed frame 17 are supported by a chain (not shown) of the chain conveyor 16, and each fixed frame 17 has a row 16A to 16A.
A screw 2 is placed on the cross member 25, which is arranged across E.
It is fixed by 5A.

As shown in FIG. 5, the shellfish position adjusting device 14 is bilaterally symmetric with respect to an imaginary center line 14A in the transport direction of the scallops, which passes through the widthwise central position of the stopper 17A in the fixed frame 17. In addition, the guide plate 14B is provided with a pair of guide plates 14B, 14B whose width becomes narrower toward the front in the transfer direction.

The heating means 18 uses, for example, a flame from a burner, laser light, infrared light, light of halogen light, red-heated metal, high-temperature steam, or the like, and the chain conveyor 1
The scallops being transferred by 6 are heated from above.

As shown in FIG. 6, the scallop 26D is called a sphincter muscle portion 27A which is a main part of the muscularis and a so-called small pillar, and is adjacent to the sphincter muscle portion 27A in a crescent shape. It is composed of an unrestricted muscle portion 27B which is a closed shell muscle.

When the hinges 26C from the scallop 26 are in parallel contact with each other on the fixed frame 17, the heating means 18 strengthens the non-restricted bar portion 27B and the constricted bar portion 27A.
Are weakly heated respectively from the outside of the bottom 26B.

For example, in the case of heating with a flame from a burner, the non-restricted streak portion 27B is the center of the flame, and heating is performed so that the flame flows from there to the constricted streak portion 27A.

Further, in the case of using light rays such as laser light, infrared light, halogen light, etc., the constricted streak portion 27A and the non-restricted streak portion 27B are irradiated and heated by different light sources or optical paths, or the unrestricted streak portion 27B. The lens is heated so that most of the light is concentrated.

As shown in FIG. 3 and FIG. 4, the shell removing means 20 is provided with a lateral V-shaped opening device 28 having a tip end facing the scallop 26, and the chain conveyor 16
The bottom 26B of the scallop 26 slightly opened on the upper fixed frame 17 (the scallop 26 is placed with the thin lid 26A on the bottom and the thick bottom 26B on the top), The bottom 26B is pushed open while the scallop 26 is being transferred by the chain conveyor 16.

The shell removing means 20 is provided with a lid 2 when the bottom 26B of the scallop 26 is pushed open by the opening device 28.
A holding rail 29 for holding the lid 26A is provided so that the 6A side is not lifted.

The pressing rail 29 is provided between after the bottom 26B is opened by the heating means 18 and before it reaches the opening device 28 and before the shelling of the bottom 26B is completed by the opening device 28.
As shown in FIG. 7, the lid 26A is brought into sliding contact with and pressed against the lid 26A during transfer by the chain conveyor 16.

The opening device 28 is arranged parallel to the transfer surface of the chain conveyor 16 and across the chain conveyor 16 at right angles to the transfer direction. Also, the opening device 28
Are arranged in each of the rows 16A to 16E with their phases slightly shifted in the transfer direction, so that the load during shelling is dispersed.
If the rigidity is sufficient, the phase does not have to be shifted.

Further, the opening device 28 enters the bottom side of the bottom 26B which is slightly opened, and as the scallop 26 is transferred by the chain conveyor 16, the bottom 26B is gradually pushed up, and the bottom 26B is moved to the scallop 26. The hinge 26C is over-opened, and the bottom 26B is pushed open in the clockwise direction in FIG. 4 until the bottom 26B comes off the hinge 26C.

Reference numeral 29A in FIG. 1 designates a chute for collecting the dehulled bottom 26B, which is arranged below the shell removing means 20.

As shown in FIG. 8, the suction means 22 is provided at its tip with a circular suction port 32 having an inner diameter slightly larger than the outer diameter of the scallop 26D of the scallop 26.

A part of the tip of the peripheral wall of the circular suction port 32 is cut out to form an air vent 32A.

Since the scallop 26 is selected by the raw scallop sorter and is transferred on the chain conveyor 16, the circular suction port 32 having the inner diameter corresponding to the size of the selected scallop is used.

Each circular suction port 32 has a horizontal support plate 33.
In addition, it is supported so that it can move up and down within a certain range. The support plate 33 is suspended and supported by a chain 34, and is fitted to an eccentric shaft 35A driven by a motor 35 to transmit the eccentric motion to each circular suction port 22, as shown in FIG. Has been done.

As shown in FIG. 10, the circular suction port 32 has a flexible hose 36A and a suction pipe 3.
Each of them is connected to the vacuum pump 38 via 6B.

Below these vacuum pumps 38,
A tank 40 is provided, and an opening / closing valve 42 operated by an air cylinder 42A is arranged below the tank 40.

This open / close valve 42 is used for the vacuum pump 38.
It is supposed to open only when the vacuum is off.

Five vacuum pumps 38 are arranged in parallel corresponding to each row 16A to 16E in the chain conveyor, and an opening / closing valve 42 in each vacuum pump 38 is arranged.
A removed material chute 44 is disposed below the
2 is opened, and the internal organs of the scallop that have fallen are collected, collected in the discharge pipe 46, and discharged into an external tank (not shown).

The suction means 22 includes two rail-shaped shell pressers 23. This shell presser 23 presses the lid 26A when the internal organs of the scallop 26 are sucked.

At the position of the suction means 22, the peeling means 4
8 are arranged.

The peeling means 48 synchronizes with the start of suction of the internal organs of the scallop 26 by the suction means 22 or slightly before, and the lid 2 of the internal organs attached to the lid 26.
A nozzle 48A for blowing compressed air is provided in a part of the suction portion on the inner surface of the nozzle 6 (see FIG. 8).

Reference numeral 48B in FIG. 8 is a compressed air source, and 48C is an electromagnetic on-off valve for connecting and disconnecting the compressed air supply from the compressed air source 48B to the nozzle 48A.

Reference numerals 50A to 50D in FIG. 1 denote nozzles for injecting cooling water. The nozzle 50A is for cooling the bottom 26B after heating, the nozzles 50B and 50C are for cooling the scallop 26D after shelling the bottom 26B, and the nozzle 50D is for washing the scallop 26D after removal of internal organs. . Reference numeral 52 denotes a shell container arranged at the end of the chain conveyor 16.

Next, the operation of the apparatus of the above embodiment will be described.

Raw shells selected in advance by a raw shell selecting machine are fed from the raw shell feeding conveyor 12 to the chain conveyor 16 in each row 16A.
Place on the fixed frame 17 above 16E.

At this time, the scallops 26 are aligned so that the hinges 26C of the scallops 26 come into contact with the stoppers 17A of the fixed frame 17 and the thicker bottom 26B is on the upper side.

When the scallop 26 transferred by the chain conveyor 16 passes through the position adjuster 14, the scallop 26 is adjusted to the center position by the guide plates 14B, 14B, and then the bottom 26B side thereof is heated by the heating means 18. The chain conveyor 16 is intermittently operated so as to be stopped for 3 to 7 seconds (when using a gas burner) during heating by the heating means 18.

At this time, since the heating means 18 strongly heats the non-restricted line portion 27B of the scallop 26, the portion of the non-restricted line portion 27B that bites into and adheres to the inner surface of the bottom 26B contracts due to heat. Thus, the end of the unstretched streak portion 27B is separated from the bottom 26B.

On the other hand, the barbed muscle portion 27A, which occupies most of the scallop 26D, is simply adsorbed to the bottom 26B, and therefore leaves the heated bottom 26B to escape from the heat.

Therefore, the bottom 26B opens slightly with respect to the lid 26A, centering around the hinge 26C.

As shown in FIG. 3, the slightly opened scallop 26 is transferred to the chain conveyor 16 so that
When the position of the opening device 28 is reached, the cover 26A is pressed by the pressing rail 29, and the rotation toward the bottom 26B is restricted.

When the lid 26A is transferred by the chain conveyor 16 while being held by the holding rail 29, the tip of the opening device 28 is covered by the lid 26A of the scallop 26.
And the bottom 26B, and the bottom 26B is expanded in the clockwise direction as shown in FIG.

When the bottom 26B is expanded beyond the limit, the bottom 26B is hinged 26C as shown by the chain double-dashed line in FIG.
Fall out of. That is, it is shelled. The dropped bottom 26B is conveyed from the chute 29 below to a shell box (not shown).

Scallop 26 with bottom 26B removed
Is transferred by the chain conveyor 16 and the suction means 2
Come to the lower position of 2. The chain conveyor 16 is operated at this position so as to be stopped for 3 to 7 seconds in synchronization with the heating by the heating means 18.

Since the circular suction port 32 of the suction means 22 is movable in the vertical direction within a certain range, the circular suction port 32
The lid 26 of the scallop 26 so that the scallop 26D becomes the center.
A Approach from above.

As shown in FIG. 8, when the circular suction port 32 approaches the lid 26A from above, the scallop 26 is inserted therein.
D enters, and in this state, the internal organs 26E around the scallop 26D try to be sucked by the negative pressure.

At this time, in synchronization with the start of suction by the suction means 22, from the nozzle 48A of the peeling means 48 to the lid 2
Compressed air is blown onto a part of the adhesive surface between 6A and the internal organs 26E.

As a result, the internal organs 26E are easily separated from the lid 26A in order from the compressed air blowing portion.

On the other hand, since the air vent 32A is formed at the tip of the peripheral wall of the circular suction port 32, the ambient air is rapidly sucked from this portion, and the circular suction port 32 is supported by the support plate 33. When the eccentric movement of the motor 35 from the eccentric shaft 35A is applied, the internal organs 26E are easily separated from the portion corresponding to the air vent 32A and sucked.

Therefore, the internal organs can be sucked very easily by making the position where the compressed air is blown by the nozzle 48A substantially coincide with the position of the air vent 32A.

The sucked internal organs 26E are stored in the tank 40 of the vacuum pump 38 via the flexible hose 36A and the suction pipe 36B.

When the suction by the suction means 22 is completed, the opening / closing valve 42 at the lower end of the tank 40 is closed by the air cylinder 42A.
The internal organs 26E in the tank 40 drop to the removed substance chute 44 and are discharged to the outside through the discharge pipe 46.

The circular suction port 32, which has finished sucking the internal organs 26E, is returned to suck the internal organs 26E of the next scallop 26, and the above-mentioned work is repeated again.

In the scallop 26 from which the internal organs 26E have been removed, the scallop 26D remains in the lid 26A.
D can be easily taken out with a spatula or the like.

The extracted scallop 26D is stored in a scallop container (not shown), and the remaining lids 26A are stored in the shell container 52, respectively.

Although the embodiment of the present invention is as described above, the present invention is not limited to this embodiment.

For example, the chain conveyor 16 may be arranged in a line without providing a raw shell sorter.

The raw shellfish sorted by size by the raw shell sorter may be fed to the rows 16A to 16E different in size.

In this case, the size of the circular suction port 32 of the suction means 22 must be changed for each row.

Further, in the above embodiment, the scallop 26 is heated on the bottom 26B side where the shell is thicker, but this is because it is less likely to be damaged when the shell is shed by the opening device 28 and the lid 26A. If the thickness is sufficient, the lid 26A may be turned on and heated.

Further, the shell removing means is not limited to the lateral V-shaped opening device. For example, while transferring the other shell of the bivalve shell slightly opened by heating by the transfer means, A press rail arranged along the transfer means so as to restrict the displacement in the one shell direction, and obliquely to the transfer direction along the press rail, and
It is arranged so as to be gradually separated from the presser rail.
A spreading rail that pushes and expands the one shell as the bivalves are transferred may be provided.

If necessary, push open the bottom 26B that is slightly open,
In addition, it is only necessary that it is excessively rotated to drop it from the hinge 26C.

Therefore, for example, means for pushing the bottom 26B from the side like a piston may be used.

Suction means 2 for sucking the internal organs 26E
In the above-described embodiment, 2 is manually operated by a worker, but when the scallop 26 having the bottom 26B removed on the chain conveyor 16 moves to a predetermined position, the circular suction port is A configuration may be adopted in which the scallop 26D is automatically lowered, the internal organs 26E are suctioned, and then the scallop 26D is detached.

Further, the circular suction port 32 is not limited to the eccentric movement, but may be vibration in one direction, vibration in the rotation direction, or the like.

Further, in the above-mentioned embodiment, by bringing the circular suction port close to the scallop 26, only the internal organs 26E are sucked and the scallops 26D remain attached to the lid 26A. This is because the adhesive force is larger than the adhesive force of the internal organs 26E.

If the negative pressure becomes excessive due to fluctuations in the power of the vacuum pump 38 in the suction means 22, the scallop 26D may also be sucked.

In such a case, as shown by the chain double-dashed line in FIG. 8, a pressing member 47 for pressing the scallop 26D when sucking the viscera 26E may be provided at the center of the circular suction port 32.

Further, the means for taking out the scallops 26D from the lid 26A may be arranged such that thin plate plastic spatulas are arranged in accordance with the number of rows of the chain conveyor and the scallops 26D are automatically taken out.

[Brief description of drawings]

FIG. 1 is a schematic front view of an embodiment of a bivalve shell removing device according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is an enlarged cross-sectional view showing a shell removing means in the same embodiment.

FIG. 4 is an enlarged cross-sectional view showing the shell removing means and the operation thereof in the same embodiment.

FIG. 5 is a plan view showing the position adjusting machine of the embodiment.

FIG. 6 is a schematic anatomical view of a scallop.

FIG. 7 is a schematic plan view showing a shell presser in the shell removing means of the embodiment.

FIG. 8 is a cross-sectional view showing a state of sucking the internal organs of a scallop by the circular suction port of the suction means in the embodiment.

FIG. 9 is a plan view showing a configuration in which the circular suction port is eccentrically moved.

FIG. 10 is a schematic sectional view showing a suction means of the same embodiment.

[Explanation of symbols]

14 ... Shell position adjuster, 14A, 14B ... guide plate, 16 ... Chain conveyor, 17 ... Fixed frame, 18 ... heating means, 20 ... Shell removing means, 22 ... suction means, 24 ... Alignment zone, 26 ... scallop, 26A ... lid, 26B ... bottom, 26C ... a hinge, 26D ... scallop, 26E ... internal organs, 27A ... the barbed muscle, 27B ... No striation, 28 ... mouth opener, 29 ... Presser rail, 32 ... Circular suction port, 32A ... Air vent, 47 ... Pressing member, 48 ... Peeling means, 48A ... nozzle.

[Procedure amendment]

[Submission date] September 7, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

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[Figure 1]

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[Fig. 2]

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[Document name to be corrected] Drawing

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[Figure 5]

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[Figure 6]

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

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[Figure 7]

[Procedure correction 6]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 10

[Correction method] Change

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[Figure 10]

Claims (9)

[Claims] 1. A transfer means for supporting and transporting a bivalve shell in one direction, a heating means for heating one shell of the bivalve shell transferred by this transport means, and a heating means for opening the shell a little.
A shell removing means for pressing the other shell on the non-heated side while transferring the bivalve shell by the transfer means, and further opening the heated one shell to remove the shell.
Bivalve shell removing device. 2. The clam according to claim 1, wherein the bivalve is a scallop, and the heating means is strong at a position outside the closed muscle that is an unrestricted muscle portion of the scallop and is a constricted muscle that is a restricted muscle portion. A bivalve shell removing device, which is weak at the outer position of the shell and heats the one shell. 3. The bivalve shell removing device according to claim 1, wherein the thicker shell of the bivalve is heated by the heating means. 4. The shell removing means according to claim 1, 2 or 3, wherein the shell removing means is a lateral V-shaped opening device that expands forward in the transfer direction, and opens slightly by heating and opens the opening by the transfer means. Two pieces characterized in that the one shell is pushed open as the two shells are transferred while the displacement of the two shells transferred forward is restricted in the direction of the one shell. Shell shelling device. 5. The suction means according to claim 1, further comprising suction means for sucking and removing the internal organs other than the scallop from the other shell after the one shell is removed by negative pressure. A bivalve shell removing device. 6. The bivalve shell removing device according to claim 5, wherein the suction means includes a circular suction port having an inner diameter slightly larger than the outer diameter of the scallop in the bivalve shell. 7. The bivalve shell removing device according to claim 6, wherein the suction means is provided with a holding member for holding the scallops during suction at the center of the circular suction port. 8. The bivalve shell removing device according to claim 7, wherein the circular suction port is formed by cutting out a part of a peripheral wall tip to form an air vent. 9. A peeling means for jetting a pressure fluid to a part between the other shell and the internal organs is provided substantially in synchronization with the start of suction by the suction means. A bivalve dehulling device characterized in that