JPH07203798A - Apparatus for sorting fishes - Google Patents

Abstract

PURPOSE:To provide fishes sorting apparatus improved in sorting property and recovering property of fishes. CONSTITUTION:This fishes sorting apparatus has a carrying pipe 2 carrying a live fish F, a sorting tank 8 provided in the downstream of the carrying pipe 2, a sorting net 9 provided in the sorting tank 8 and having meshes 17, a cam for vertically oscillating the sorting net 9 provided in the sorting tank, a rotating shaft, a jetting pipe provided in the upper part of the sorting net 9 and jetting water downward, the first recovering part C provided under the sorting net 9 and the second recovering part D provided in the sorting tank 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fish sorter for automatically sorting fish, such as live fish, according to the width of its body.

[0002]

2. Description of the Related Art FIGS. 6 and 7 show a conventional fish sorting apparatus (Shokai 57-43083). In the sorting tank 100, a plurality of sorting nets 101 to 103 are provided along the vertical direction. The sorting nets 101 to 103 have a long mesh 104, and the spacing A between the meshes 104 is set narrower toward the lower the sorting mesh. The sorting tank 100 is provided with collection ports 105 to 107 corresponding to the sorting networks 101 to 103 and another collection port 108.

At the upper part of the sorting tank 100, there is provided a transfer section, for example, an inlet 109, and an injection pipe 110. The injection pipe 110 is formed in a plane annular shape, and a plurality of injection holes 111 are provided along the inner circumference thereof.

One end side of the sorting nets 101 to 103 is a sorting tank 1
00, and the other end side is separately supported by a support frame 112. The support frame 112 is provided on the actuation frame 113, and the lower end of the actuation frame 113 is connected to one end of the swing rod 114.

The rocking rod 114 is a support shaft 115 of the sorting tank 100.
Is swingable around a fulcrum, and a pedal 116 is fixed to the other end of the swing rod 114.

In the above-mentioned structure, fish (not shown) is introduced into the sorting tank 100 through the inlet and the injection hole 1
Water is jetted from 11.

When the worker repeatedly depresses and releases the pedal 116, the rocking rod 114 rocks about the support shaft 115 as a fulcrum, and the sorting nets 101 to 103 are in the horizontal position indicated by the solid line and the inclined position indicated by the chain double-dashed line. Vibrates between. Then,
Fish are sorted by the size of the width of the body by the sorting nets 101 to 103 and the mesh 104, moved to the right side in the figure by their own weight due to the inclination of the sorting nets 101 to 103, and individually collected from the collection ports 105 to 108.

[0008]

The above-mentioned fish sorter has the following problems.

The input direction Y of the input port 109 and the sorting net 1
Since the longitudinal direction Z of the mesh 104 of 01 is orthogonal,
The side lines of the body of the fish that are thrown in tend to be orthogonal to the mesh 104, and the mesh 104 does not matter whether the width of the body is large or small.
It does not pass through, resulting in poor sorting. Since the jet pipe 110 is annular and jets water toward the center of the sorting net 101, the water pressure of the jet water near the collection port 105 pushes the fish back in the direction away from the collection port 105 (left side in the figure) to sort. This causes poor collection of fish remaining on the net 101.

The present invention is intended to solve the above problems, and an object of the present invention is to provide a fish sorter having improved fish sortability and collectability.

[0011]

In order to achieve the above object, the invention according to claim 1 conveys a fish along the longitudinal direction of the body, and a sorting tank provided downstream of the conveying direction of the conveyer. And a sorting net which is horizontally provided in the sorting tank at a position lower than the carrying section and has a longitudinal mesh along the carrying direction, and a vibration which is provided in the sorting tank and vibrates the sorting net up and down. Means, an injection pipe provided above the selection net, for injecting water obliquely downward along the carrying direction, and a first pipe provided below the selection net for collecting the fish that has passed through the net. It has a collection part and a 2nd collection part which is provided in the downstream of the selection net in the selection tank, and which collects fish that did not pass through the mesh.

According to a second aspect of the present invention, the carrying section is provided with a distribution piece for distributing the fish in the entire width direction orthogonal to the carrying direction.

According to a third aspect of the present invention, a guide rail is provided horizontally in the sorting tank so that the sorting net can be moved in and out of the sorting tank.

According to a fourth aspect of the present invention, the closing tank is provided with a closing sheet for closing a gap between the inner surface of the wall of the selecting tank and the outer circumference of the selecting net.

According to a fifth aspect of the present invention, wheels are provided below the sorting tank.

[0016]

According to the first aspect of the present invention, the fish is placed on the sorting net in a state where the longitudinal direction of the body is along the arrangement direction of the net. Fish that have passed through the mesh due to vertical vibration of the sorting net are collected in the first collecting unit.

Even if the longitudinal direction of the body of the fish and the arrangement direction of the mesh are different, the direction of the fish is corrected by the water pressure of the jet water.

On the other hand, the fish remaining on the sorting net without passing through the net are smoothly transported to the downstream by the water pressure of the jet water.

According to the second aspect of the invention, the fish are distributed over the entire width of the sorting net.

According to the third aspect of the present invention, the sorting net can be inserted into the sorting tank along the guide rail or taken out to the outside.

According to the fourth aspect of the present invention, the fish on the selection net do not accidentally fall into the first recovery section through the gap between the selection net and the inner surface of the wall of the selection tank.

According to the invention of claim 5, the sorting tank can be moved to any place.

[0023]

1 is a plan view of a fish sorter according to an embodiment of the present invention, and FIG. 2 is a front sectional view thereof. A transport unit, for example, a transport pipe 2 is provided above the frame base 1. The conveying pipe 2 extends in a plane fan shape from the upstream side to the downstream side in the conveying direction B, and its bottom portion is inclined downward as it goes downstream.

A draining net 3 is provided at the bottom of the carrier pipe 2 and communicates with a drain pipe 5 of a drainage section 4. A plurality of distribution pieces 6 are provided downstream of the draining mesh 3 in the width direction, and a door 7 is provided on the distribution pieces 6 so as to be openable and closable.

A metal sorting tank 8 formed in a flat rectangular shape is provided downstream of the carrying tube 2 in the carrying direction B, for example, on the side of the frame 1. Inside the sorting tank 8 and at a position lower than the carrier pipe 2, a flat square metal sorting net 9 as shown in FIG.
Is installed horizontally.

FIG. 4 is a side sectional view of the sorting tank 8. An opening 24 is provided in the front wall 23 of the sorting tank 8, and the opening 24 is opened and closed by a door 25. The sorting net 9 can be inserted into the sorting tank 8 or taken out through the opening 24.

As shown in FIG. 3, the screening net 9 has a pair of side frames 10 provided in parallel with each other along the conveying direction B and a pair of side frames 1.
It has a plurality of lower frames 11 to 14 arranged in parallel with each other in the lower part of 0 and orthogonal to the transport direction B.

As shown in FIG. 4, a plurality of support plates 15 parallel to each other are erected on the lower frames 11 to 14 at regular intervals, and bar members 16 each having a circular cross section are provided on the support plates 15. It is fixed in parallel.

The diameter of the rods 16 is set larger than the thickness of the support plate 15, and the intervals L of the longitudinal meshes 17 formed along the carrying direction B by the rods 16 are all equal.

At one end of the lower frames 11 and 14, that is, on the rear wall 26 side of the sorting tank 8, a locking claw 18 is provided, and at the lower frames 11 and 14, wheels 19 as shown in FIG. 5 are provided. is there.

Further, as shown in FIG. 4, a lever 22 having a ring 21 is provided on the other ends of the lower frames 11 and 14, that is, on the front wall 23 side.

Inside the sorting tank 8, a pair of guide rails for holding the sorting net 9 (only one is shown in the figure for convenience) 27.
Is installed horizontally. The pair of guide rails 27 is the lower frame 1
1, 14 are provided corresponding to the sorting tank 8 from the opening 24.
Inserted inside.

The pair of guide rails 27 are provided with recesses 20 corresponding to the wheels 19, and an arch-shaped stopper 28 and a downwardly projecting locking claw 29 are provided at the end on the rear wall 26 side.
And are provided. The locking claw 29 is inserted into the holding cylinder 64, and a hook 30 is provided at an end of the pair of guide rails 27 on the front wall 23 side.

Below the pair of guide rails 27, a vibrating means along the conveying direction B, for example, a pair of rotary shafts 33 is provided, and bearings 34 of brackets 36 support both ends of the rotary shaft 33.

The pair of rotating shafts 33 are provided with other vibrating means, for example, two eccentric cams 35 as shown in FIG. 4, and the eccentric cams 35 support the pair of guide rails 27.

One end of the pair of rotating shafts 33 is exposed to the outside of the sorting tank 8 through a shaft hole 37, and a sprocket 38 is provided at the end thereof. The pair of rotating shafts 33 are provided with a conversion gear (not shown) for rotating in such a manner that they rotate in opposite directions. The frame 39 is provided with a motor 39, and the motor 3
9 and the sprocket 38 are connected by a chain 40.

Inside the sorting tank 8, that is, the pair of rotating shafts 33.
A bottom 31 is provided on the lower side of the sorting net 9, and a partition plate 32 provided corresponding to the downstream end of the sorting net 9 is provided to the first collecting section C corresponding to directly below the sorting net 9 and the downstream of the sorting net 9. It is partitioned into the corresponding second recovery section D.

The first recovery portion C is inclined in a valley shape as shown in FIG. 2, and communicates with the outlet 41 of the front wall 23 and the outlet 41 of the rear wall 26. The second recovery part D has a groove shape, and has an outlet 42 of the front wall 23 and an outlet 42 of the rear wall 26.
Communicates with.

The sorting tank 8 has a front wall 2 as shown in FIG.
A plurality of rod-shaped holders 43 having an arc-shaped cross section are provided so as to straddle the upper end of No. 3 and the upper end of the back wall 26. The holder 43 is open at the bottom and is orthogonal to the transport direction B.

An injection pipe 44 is rotatably arranged inside the holder 43, and both ends of the injection pipe 44 are supported by bearings 45. The injection pipe 44 is provided with a plurality of injection holes 46 along the longitudinal direction.

The inner diameter of the injection hole 46 is set to, for example, about 1.5 mm, and the distance between the injection holes 46 is set to, for example, about 5 mm. The injection holes 46 of the injection pipes 44 are located at different circumferential positions.

In the present embodiment, of the eight injection pipes 44, the four injection pipes 44 on the upstream side and the downstream side are the injection holes 46.
Set the angle between them large (for example, about 180 degrees),
The angle between the injection holes 46 of the four central injection pipes 44 is set to be small (for example, about 90 degrees).

Sprockets 47 are provided on one end of the injection pipe 44, that is, on the side of the front wall 23, and a plurality of sprockets 48 are provided on the upper end of the front wall 23 so as to correspond between the sprockets 47. .

A chain 49 wound around the sprockets 47 and 48 is connected to a motor 50 on the frame base 1.

The other end of the injection pipe 44, that is, the rear wall 26 side is connected to a water supply pipe 51, and the water supply pipe 51 is connected to a water pump 52 on the frame base 1.

On the inner surfaces of the front wall 23, the rear wall 26, and the upstream side wall 53 of the sorting tank 8, closing sheets 54A and 54B for closing the gaps between the outer circumference of the sorting net 9 are provided. The closing sheets 54A and 54B are formed of a rubber-like elastic material into a band shape, and the upper edge side thereof is rotatably supported by a hinge 55.

The closing sheets 54A and 54B are located above the sorting net 9, and the lower end edges thereof are in contact with the sorting net 9. Further, the closing sheet 54B overlaps the closing sheet 54A.

A rotary rod 56 is horizontally provided near the side wall 53 as shown in FIG.
A pin 57 that abuts on the back surface of 4A is provided. Rotating rod 5
As shown in FIG. 1, one end of 6 penetrates the back wall 26 and is exposed to the outside, and a lever 58 is provided at the end thereof.

Wheels 59 are provided on the front and back of the frame 1.
And a wheel 60 is attached to the side surface on the downstream side of the sorting tank 8. The wheel 60 is rotatable in a plane direction by a support shaft 61.

The outer diameters of the wheel 59 and the wheel 60 are the same, but the center of the wheel 59 is set lower than the center of the wheel 60. A jack (not shown) is provided below the handle 62 of the sorting tank 8.

A handle 62 is provided on the downstream side surface of the sorting tank 8. A control board 63 for controlling the operations of the motors 39, 50 and the water pump 52 is provided on the frame base 1. The control panel 63 has an inverter (not shown) built therein, and the motor 3 can be appropriately used according to the size of the live fish F and the supply amount.
The rotation of 9,50 can be adjusted.

When using the above fish sorter, the jack is used to lift the downstream side of the sorter tank 8, that is, the wheel 60 side, and maintain the rotating shaft 33 in a horizontal state. Therefore, only the wheel 59 is grounded.

Then, the door 25 is opened, the pair of guide rails 27 is inserted into the sorting tank 9 through the opening 24 and placed on the eccentric cam 35, and the locking claw 29 is inserted into the locking cylinder 64. .

Next, the sorting net 9 held horizontally is opened in the opening 2.
Insert from 4 into the sorting tank 8. At this time, the wheels 19 move while rolling on the pair of guide rails 27.

The sorting net 9 stops when the wheel 19 is recessed in the recess 20 as shown in FIG. 4, and the projection 18 sunk below the stopper 28. Then, if the ring 21 is hooked on the hook 30 and locked by the lever 22, the sorting net 9 is fixed horizontally.

Thereafter, the door 25 is closed and the motors 39, 5
0, the water pump 52 is operated, and a fish (for example, live fish F and water) is supplied to the carrier pipe 2 together by the operation of a pump (not shown).

Then, the live fish F is carried by the water flow with the longitudinal direction of the body along the carrying direction B.

In the carrier pipe 2, the water is drained by the draining mesh 3 and only the live fish F is transported downstream by its own weight, and distributed by the distribution piece 6 in the entire width direction orthogonal to the transportation direction B and on the sorting net 9. To fall.

The sorting net 9 vibrates up and down by the eccentric cam 35 which is operated by the rotation of the rotary shaft 33, and the live fish F whose body is less than the width L passes through the net 17 and falls into the first collecting part C, It moves to the center along the inclination and is taken out of the sorting tank 8 through the take-out port 41.

On the other hand, the injection pipe 44 injects water while rotating in the same direction as the conveyance direction B, and the live fish F remaining on the sorting net 9 without passing through the mesh 17 is conveyed to the downstream side by the water pressure of the injection water. Then, it is dropped into the second recovery section D and taken out from the outlet 42.

In this embodiment, since the distribution pieces 6 distribute the live fish F in the entire width direction, the live fish F are distributed in the entire width direction of the selection net 9 and the live fish F do not overlap each other.
A reliable sorting operation is performed.

In this embodiment, since the lateral line of the live fish F is placed on the sorting net 9 by the water flow of the transport section 2 along the arrangement direction of the net 17, the live fish easily pass through the net 17 and the sorting property is improved. To do. Further, even if the lateral line of the live fish F is different from the arrangement direction of the mesh 17, the direction of the live fish F is corrected by the water pressure of the jet water, so that the selectivity can be maintained. In addition, the sorting net 9
By vibrating, the direction of the live fish F is corrected by the outer peripheral shape of the rod 16.

In this embodiment, since the sprayed water is sprayed toward the second collecting section D, the live fish F remaining on the sorting net 9 is smoothly transported to the downstream side, and the collectability is improved.

In this embodiment, the sorting net 9 can be moved in and out of the sorting tank 8. Therefore, various types of sorting nets having different widths L of the mesh 17 are prepared and used by exchanging them appropriately. Therefore, the selection standard of the live fish F can be changed.

When replacing the sorting net 9 in this embodiment, if the closing sheets 54A and 54B are flipped up and stopped by operating the lever 58, the sorting net 9 and the closing sheet 54 can be stopped.
The frictional resistance between A and 54B is eliminated, and the workability of replacing the sorting net 9 is good.

In this embodiment, since the gap between the sorting net 9 and the sorting tank 8 is closed by the closing sheets 54A and 54B,
The live fish F on the sorting net 9 does not inadvertently drop from the gap to the first collecting section C, and the sorting function can be maintained.

In this embodiment, since the locking claw 29 is inserted into the locking cylinder 64, the horizontal movement of the pair of guide rails 27 is restricted, and the sorting net 9 is regularly vibrated up and down. You can

In this embodiment, since the wheel 19 is recessed in the recess 20, the ring 21 is hooked on the hook 30, and the projection 18 is under the stopper 28, the sorting net 9 is on the pair of guide rails 27. It does not move horizontally.

Therefore, the sorting net 9 can be limited only to vertical vibration, and the sorting net 9 can be collected on the pair of guide rails 27 without being disturbed.

In this embodiment, since the wheels 59 and 60 are provided, the sorting tank 8 can be moved to an arbitrary place, for example, a safe and sanitary place, to sort live fish F,
Workability is improved.

In this embodiment, by opening the door 7, it is possible to easily carry out the cleaning work inside the transport pipe 2 and the removal work when the live fish F is clogged with the draining net 3.

In this embodiment, when the transportability of the live fish F due to the water pressure is insufficient on the sorting net 9, the downstream side of the sorting tank 9 is lowered with the wheel 59 kept in contact with the sorting net 8 to the downstream side. If it is inclined to, the transportability will be improved, and the collectability will be further improved.

In this embodiment, the angles of the injection holes 46 in the upstream and downstream injection pipes 44 are such that
Since the angle is set to be larger than the mutual angle of the injection holes 46, the transport speed of the live fish F becomes slower on the upstream side and the downstream side of the sorting net 9 than in the central portion. As a result, on the upstream side, the direction correction time of the live fish F due to the vibration of the sorting net 9 can be secured for a long time to improve the sorting performance, and on the downstream side, the impact of the live fish F falling from the sorting net 9 to the second collecting section D is suppressed as much as possible. However, the live fish F can be prevented from being damaged.

In the present embodiment, since the pair of rotary shafts 33 rotate in opposite directions, the frictional resistance with the cam 35 cancels the force for moving the pair of guide rails 27 in the longitudinal direction, and the sorting net 9 Can be prevented from moving in the horizontal direction.

Further, the conditions such as the inner diameter of the injection hole 46 of the injection pipe 44, the installation interval thereof, the rotation speed of the injection pipe 44, the injection water pressure, etc., cannot be changed according to the size of the fish F and the supply amount. Of course.

As the selection net, a metal plate may be punched by a punch and a die to form a long mesh, and a reinforcing member may be attached to the lower part of the metal plate. In the case of this sorting net, since the mesh can be formed at once, there is an effect that the number of manufacturing steps and the manufacturing cost of the sorting net can be suppressed, and since the metal plate is punched with the punch and the die, the processing accuracy of the net for each sorting net is high. Has the effect of becoming uniform.

As the vibrating means, for example, a cylinder operated by fluid pressure may be provided inside the sorting tank, the piston of this cylinder may be connected to the sorting net, and the sorting net may be vertically vibrated by the operation of the cylinder.

As a vibrating means, a solenoid operated by energization control may be provided inside the sorting tank, the plunger of this solenoid may be connected to the sorting net, and the solenoid may be operated to vertically vibrate the sorting net.

Further, the injection pipe may be constructed so as to inject water in a state in which the injection hole is stopped toward the downstream side.

The plane shape of the selection net may be circular, triangular or the like.

[0081]

As described above, according to the first aspect of the present invention, there is provided a transport section for transporting fish along the longitudinal direction of the body, a sorting tank provided downstream of the transport section in the transport direction, and this sorting tank. A sorting net which is provided horizontally lower than the carrying section and has a longitudinal mesh along the carrying direction; a vibrating means which is provided in the sorting tank and vibrates the sorting net up and down; An injection pipe that is provided above the injection pipe and injects water obliquely downward along the transport direction; a first recovery unit that is provided below the selection net and that collects fish that have passed through the mesh; The second sorting unit is provided downstream of the sorting net in the tank and collects the fish that did not pass through the mesh. Therefore, the fish is sorted in a state where the longitudinal direction of the body and the arrangement direction of the mesh match. Sorts on the net and makes it easier to pass through the net There is improved.

Further, even if the longitudinal direction of the body and the arrangement direction of the meshes are different, the orientation of the fish is corrected by the water pressure of the jet water, so that the selectivity can be maintained.

Further, since the jetted water is jetted toward the second collecting section, the fish remaining on the sorting net are smoothly conveyed to the downstream side, and the collectability is improved.

According to the second aspect of the present invention, since the distribution section is provided with the distribution piece for distributing the fish in the entire width direction orthogonal to the conveyance direction, the fish is distributed in the entire width direction of the selection net. Therefore, the fishes do not overlap with each other, and the sorting operation is performed reliably.

According to the third aspect of the present invention, since a guide rail is provided horizontally in the sorting tank so that the sorting net can be moved in and out of the sorting tank, the sorting net can be arbitrarily replaced. Can change the selection criteria for fish.

In the invention according to claim 4, since the closing tank is provided in the sorting tank to close the gap between the inner surface of the wall of the sorting tank and the outer circumference of the sorting net, the fish on the sorting net are sorted with the sorting net. It is possible to maintain the selectability without accidentally dropping from the gap between the inner surface of the tank wall and the first collecting section.

According to the fifth aspect of the present invention, since the wheels are provided in the lower portion of the sorting tank, the sorting tank can be moved to an arbitrary place to sort the fish, and the workability is improved.

[Brief description of drawings]

FIG. 1 is a plan view showing the overall configuration of an embodiment of the present invention.

FIG. 2 is a front sectional view showing the overall configuration of the embodiment of the present invention.

FIG. 3 is a perspective view of a sorting net according to an embodiment of the present invention.

FIG. 4 is a side sectional view of a sorting tank according to an embodiment of the present invention.

FIG. 5 is an enlarged front sectional view of the sorting tank according to the embodiment of the present invention.

FIG. 6 is a front sectional view of a conventional fish sorting device.

FIG. 7 is a plan view of a conventional fish sorting device.

[Explanation of symbols]

 F Live fish 2 Conveying pipe B Conveying direction 8 Sorting tank 9 Sorting mesh 35 Cam 33 Rotating shaft 44 Injection pipe C First collecting part D Second collecting part 17 Mesh 6 Distributing piece 27 Guide rail 23 Front wall 26 Back wall 53 Side wall 54A , 54B Blocking sheet 59, 60 Wheel

Claims (5)

[Claims] 1. A transport unit for transporting fish along the longitudinal direction of a body, a sorting tank provided downstream of the transport unit in the transport direction, and a sorting unit horizontally provided at a position lower than the transport unit in the sorting tank, A sorting net having a longitudinal mesh along the carrying direction, a vibrating means provided in the sorting tank and vibrating the sorting net up and down, and provided above the sorting net, along the carrying direction. An injection pipe that injects water obliquely downward, a first recovery unit that is provided below the sorting net and that collects fish that have passed through the mesh, and a downstream of the sorting net in the sorting tank, And a second recovery unit for recovering fish that have not passed through the mesh. 2. The fish sorter according to claim 1, wherein the carrying section is provided with a distribution piece for distributing the fish in the entire width direction orthogonal to the carrying direction. 3. The fish sorting apparatus according to claim 1, wherein a guide rail is provided horizontally in the sorting tank to allow the sorting net to move in and out of the sorting tank. 4. The fish sorting apparatus according to claim 1, wherein the sorting tank is provided with a closing sheet that closes a gap between an inner surface of a wall of the sorting tank and an outer circumference of the sorting net. 5. The fish sorter according to claim 1, wherein wheels are provided below the sort tank.