JPH0442261Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is a method of supplying fish, such as cod, whose abdomen is whiter than its back and whose tail is thinner than its head in a predetermined manner, with the cranio-caudal and dorsal-ventral directions aligned. The present invention relates to a fish feeding device that can continuously feed fish to a certain location.

BACKGROUND TECHNOLOGY In order to automatically process fish, it is necessary to hold the fish supplied in irregular positions with the front facing forward and align the cranio-caudal and dorsal-ventral directions in a certain direction.
Particularly when a large number of fish are to be processed, manual methods are far less efficient, so it has traditionally been desired to have a device that can quickly and continuously orient the fish and has a simple configuration. ing.

Problems to be Solved by the Invention The purpose of the invention is to provide a fish feeding device that has a simple structure and can be continuously and quickly arranged in a fixed posture.

Means for solving the problem The present invention has an upward opening and a cross section perpendicular to the axis of the member is U.
A gutter body 73 which is curved in the shape of a letter, whose tail is smaller in width than its head, and whose back and abdomen are shaded in color is conveyed in the transport direction B, and above the gutter body 73. A first detector 70 is provided, and a detection position is set in the passage path of either the back or the abdomen in the transport path of the fish in the gutter body 73; a second detector 71 whose detection position is set in the path, and the first and second detectors 7
first detection means 70 and 71 that emit light toward each detection position from 0 and 71 to detect the back and abdomen of the fish; and the first detection means 70 that extends in a direction intersecting the transport path. , 71 or near the downstream side of the detection position in the transport direction B, and the light emitted from the light emitting element 72a is received/blocked by the light receiving element 72b.
Second detection means 72 for detecting presence/absence of fish
and, connected to the gutter body 73, along the passage path of either the back or the abdomen in the conveying direction B.
A first guide member 81 extends downstream, and is fixed to an end of the first guide member 81 on the downstream side in the conveyance direction B. A dorsoventral aligning means 8 having a second guide member 82 inclined toward the center and a belt 86 provided adjacent to the guide member 81 and conveying the mounted fish downstream in the conveyance direction B.
1, 82, 86, a bottom plate 69 which is provided downstream of the dorsoventral aligning means 81, 82, 86 in the transport direction B and can be opened and closed with the transport path facing downward; and for driving the bottom plate 69 to open and close. an angular displacement drive means 76 for angularly displacing the first guide member 81 together with the second guide member 82 in a direction approaching the conveyance path; and outputs from the first detection means 70 and 71. In response, when the output of one of the detectors 70, 71 is larger than the output of the other of the detectors 70, 71, the angular displacement driving means 76 is driven to 2 guide members 81, 8
2 is raised, and when the outputs from the first detection means 70 and 71 are inputted before the second detection means 72, the opening/closing drive means 78 is driven to open the bottom plate 69.
This is a fish feeding device characterized in that it includes control means 75, 77, and 79 for opening.

Effect According to the present invention, when the fish is transported with the head first, the second detection means 7 is detected before the first detection means.
2 detects its passing, the bottom plate 69 is closed by the opening/closing driving means 78, and the fish is transported as is. Furthermore, when the fish is transported with the tail first, the passage of the fish is detected by the first detection means 70 and 71 before the second detection means 72, so that the bottom plate is 69 is opened and the fish are discharged to the outside. Furthermore, when the fish is transported to the detection position of the first detection means 70, 71, the first
Based on the respective outputs from the second detectors 70, 71, the dorsoventral alignment means 81, 82, 86 are operated,
Flip the fish so that its dorsoventral orientation is on the predetermined side.

Embodiment FIG. 1 is a block diagram showing the overall configuration of an embodiment of the present invention. This automatic sorting machine 1 basically consists of a fish sorting and feeding device 2 that arranges the fed fish with their heads at the top and transports them one by one in a vertical line; When the fish feeding device 3 transports the fish at regular intervals in the transporting direction and the fish sent from the fish feeding device 3 is sent with the tail at the beginning,
A fish feeding device 4 that smoothly feeds fish without getting them caught in a means for feeding fish one by one; and a fish feeding device 4.
a device 5 for determining the head and tail of fish sent from;
It includes a fish arranging device 6 that arranges the backs or bellies of fish in a predetermined direction, and a device 7 that cuts off the heads of the fish sent from the fish arranging device 6.

FIG. 2 is a plan view of the vicinity of the fish alignment and feeding apparatus 2, and FIG. 3 is a side view of the vicinity of the fish alignment and feeding apparatus 2. The fish alignment and feeding device 2 includes a pair of first transport means 10 that arrange the fish heads in the transport direction B and transport the fish one by one in a vertical line, and the fish from the first transport means 10 join together. A pair of second conveyance means 12 that convey only the fish located on the most downstream side in the conveyance direction B among the fish supplied in the confluence area 11.
including.

These first conveyance means 10 and second conveyance means 12 are mounted on a pedestal 13. First conveyance means 1
0 includes a supply gutter body 14 that extends approximately horizontally along the conveyance direction B, and a supply gutter body 14 extending approximately horizontally along the conveyance direction B.
an oscillator 15 that vibrates back and forth along the feed gutter body 14; a conveyance gutter body 16 that is arranged below the supply gutter body 14 and tilts away from the pedestal 13 as it goes downstream in the conveyance direction B; 16 back and forth along the conveyance direction B.

The supply gutter body 14 includes a bottom plate 18 and a pair of side plates 1 erected on the bottom plate 18 and extending along the conveying direction B.
9 and 20. A conveyance plate 21 is attached to the upper surface of the bottom plate 18, as shown in FIG. A pear-shaped surface 200 is formed on the upper surface of the conveyance plate 21 . The side plate 19 is formed into a tapered shape at both ends along the conveying direction B, and its opening has a width corresponding to about 1.5 to 2 fish in a lying position, for example. This supply gutter body 14 has elastic plates 22 and 23.
The upper ends of the elastic plates 22 and 23 are pivotally supported, and the lower ends of the elastic plates 22 and 23 are attached to the frame 13. The oscillator 15 is
The motor and the elastic plates 22, 23
It consists of a crank device etc. that performs reciprocating drive displacement. Elastic bodies 120 and 121 are similarly attached to the conveyance gutter body 16, and the oscillator 1
7 causes the conveyance gutter body 16 to vibrate back and forth along the conveyance direction B. On the upstream side of the supply gutter body 14 in the conveyance direction B, there is a reversing chute 24 for reversing and supplying the fish dropped into the feed gutter body to the conveyance gutter body 16 again when the fish is fed so as to be located on the downstream side of the conveyance direction B. is installed. The reversing chute 24 has an upper opening and a lower opening, and the upper opening is connected to the supply gutter body 14.
The lower opening of the reversing chute 24 communicates with the conveyance gutter body 16.

The conveyance gutter body 16 includes a bottom plate 25 and side plates 26 , 27 , and 28 erected on the bottom plate 25 . The side plates 26 and 27 are formed in a tapered shape on the downstream side in the conveyance direction B, and the side plate 27 is arranged between the side plates 26 and 28. The downstream end of the side plate 27 along the conveyance direction B is located upstream of the tip ends of the side plates 26 and 28. This side plate 26, side plate 27, and bottom plate 25
The first conveyance path 29 is thus configured. Further, the side plate 28, the side plate 27, and the bottom plate 25 constitute a second conveyance path 30.

The first conveyance path 29 and the second conveyance path 30 merge at the end on the downstream side in the conveyance direction B, and a confluence region 11 is formed. In this merging area 11 , a second conveyance means 12 is arranged closer to the second conveyance path 30 . This second conveying means 12 is a so-called brush wheel, and includes a rotating roller 31 and a rotating roller 3.
1. A plurality of wire bodies 32 are implanted on the outer peripheral surface of the wire body 1. The downstream end of the supply gutter body 14 in the conveyance direction B faces the first conveyance path 29 side. As a result, the supply gutter body 14 vibrates as will be described later and moves in the conveying direction B.
When the head of the fish advances to the side, the fish is dropped from the supply gutter body 14 into the first transport path 29.

A conveyance plate 21a having the same structure as the conveyance plate 21 is attached to the bottom plate 25 near the position where fish are dropped from the supply gutter body 14 of the first conveyance path 29. The fish body, with the head at the front, is transported along the first transport path 29 by the transport plate 21a, with the scales engaging with the pear surface 200. Further, when a fish is dropped from the end of the supply gutter body 14 with its tail at the head, the fish travels in the falling direction along the first transport path 29 by the transport plate 21a.

As shown in FIG. 5, on the surface of the bottom plate 25 on the downstream side of the conveyance direction B of the conveyance plate 21a of the first conveyance path 29, a semi-conical raised claw 35 is provided at right angles to the conveyance direction B or A large number of them are arranged in parallel so that they intersect diagonally. By this claw 35, all fish transported from the transport plate 21a are transported along the transport direction B and transported to the confluence area 11, even if either the head or the tail is at the top. be done.

The second conveyance path 30 faces the reversing chute 24 on the upstream side in the conveyance direction B thereof. Therefore, fish whose heads are facing upstream in the transport direction B from the supply gutter body 14 are transported to the second transport path 30 via the reversing chute 24 and are reversed so that their heads face in the transport direction B. and transported. A transport plate 21b is attached to the surface of the bottom plate 25 near the position of the second transport path 30 facing the reversing chute 24. This conveyance plate 21b has the same configuration as the conveyance plate 21 described above. The second transport path 30 includes a transport plate 21b.
The claw 3 extends from the downstream side to the confluence area 11.
A claw 35a similar to 5 is provided.

The operation of the fish alignment and feeding device 2 having such a configuration will be explained. When the unillustrated motor of the oscillator 15 is energized, the elastic plates 22 and 23 are driven and displaced along the front and back of the conveyance direction B via the crank device, thereby causing the supply gutter body 14 to move in the conveyance direction B. It vibrates back and forth along the line. As a result, the scales of the fish supplied to the supply gutter body 14 in pieces engage with the pear surface 200 of the conveyance plate 21, and the fish whose heads are facing in the conveyance direction B side are moved in the conveyance direction B. It is conveyed along the same line and dropped onto the first conveyance path 29. The conveyance gutter body 16 is vibrated back and forth along the conveyance direction B by an oscillator 17, so that the fish dropped onto the first conveyance path 29 are conveyed further downstream by the conveyance plate 21a. , and further conveyed downstream by the claws 35 and conveyed to the merging area 11.

On the other hand, among the fish supplied into the supply gutter body 14, the fish whose heads are facing downstream in the conveyance direction B proceed in the opposite direction to the conveyance direction B, and are transferred to the second conveyance chute 24 via the reversing chute 24. Dropped on route 30. The fish dropped onto the second transport path 30 are transferred to the transport plate 21b,
It is conveyed toward the merging area 11 by the claw 35a. Note that if the amount of fish supplied to the supply trough body 14 is extremely large, fish whose tails are facing toward the head may be dropped into the first conveyance path 29. In such a case, the transport direction B is controlled by the transport plate 21a.
3, and falls from the right end of the first conveyance path 29 in FIG. Furthermore, when a fish whose tail is facing upstream in the supply gutter body 14 advances toward the reversing chute 24 and is dropped into the second transport path 30, the fish is moved to the right side of the second transport path 30 by the transport plate 21b. Fall from the opposite end. In this way, the first transport means 10 can transport the fish one by one in tandem with their heads facing in the transport direction B.

The fish transported from the first transport route 29 and the second transport route 30 in this way are transported to the confluence area 1.
1, only the fish whose heads are located on the most downstream side in the transport direction B are transported further downstream by the second transport means 12. By providing the second transport means 12, it is possible to reliably transport the fish one by one to the subsequent transport route without the fish competing with each other in the merging area 11 and becoming jammed.

FIG. 6 is a plan view of the automatic sorting machine 1 following the fish sorting and feeding device 2, and FIG. 7 is a side view of FIG. 6. A fish supply device 3, a fish supply device 4,
The fish head discrimination device 5, the fish alignment device 6, and the fish head cutting device 7 are provided in this order toward the transport direction B. The fish supply device 3 includes a ratchet wheel 40 as a means for transporting the fish along the transport route;
A blocking means 41 which is arranged upstream of the ratchet wheel 40 and blocks the transport route; and a detection means 4 which is arranged downstream of the blocking means 41 and detects passage of fish.
2.

FIG. 8 is a perspective view of the vicinity of the blocking means 41, and FIG. 9 is a sectional view taken along the cutting plane line - in FIG. Referring also to FIGS. 6 and 7, the blocking means 41 includes a holding member 43 having the shape of a hollow truncated cone split in half along the axis, and a plate-shaped holding member 43 attached to the large diameter end of the holding member 43. and a presser member 44. The holding member 43 is arranged such that the large diameter end portion is located on the upstream side in the conveying direction B, and the small diameter end portion is located on the downstream side in the conveying direction B. This presser member 43 is supported by a pin 45 having a horizontal axis so as to be angularly displaceable about the axis of the pin 45. This pressing member 43 is connected to a drive rod 47 of an air cylinder 46, and this air cylinder 46 is connected to a casing 48.
Fixed.

The detection means 42 includes a light emitting element 49 and a light receiving element 50.
and transmits the light from the light emitting element 49 to the light receiving element 50.
When detected, the drive rod 47 of the air cylinder 46 retracts and the holding member 43 is angularly displaced in the direction of the arrow F in FIG. 9, allowing the fish to be transported. On the other hand, when the light-receiving element 50 does not receive light from the light-emitting element 49, that is, when the light from the light-emitting element 49 is blocked by the passage of a fish, the control means extends the drive rod 47 of the air cylinder 46, As a result, the holding member 43 is angularly displaced in the direction opposite to the direction of the arrow F, thereby blocking the fish transport path.

A ratchet wheel 40 is arranged below the conveyance path near the downstream side in the conveyance direction of the small diameter end of the presser member 43 .
This ratchet wheel 40 includes a pair of rotating disks 52 that are rotatable around the axis of a rotating shaft 51, and
and a claw member 53 provided on a portion of the circumference of the holder. A supply roller 54 is provided above the ratchet wheel 40. This supply roller 54 is connected to a support member 55
Supported by. A guide hole 56 extending vertically is formed in this support member 55, and the shaft 57 of the supply roller 54 is inserted therethrough gently. This allows the supply roller 54 to move up and down along the guide slot 56.

The operation of such a fish supply device 3 will be explained. When a fish is detected by the detection means 42, the holding member 43 is displaced in the direction opposite to the direction of the arrow F to block the fish transport path. Along with this, the ratchet wheel 40 is rotating at a predetermined angular velocity,
By one rotation of the ratchet wheel 40, the fish is caught near its head by the claw member 53 and is held between the supply roller 54 and the brush wheel 58 disposed on the downstream side. and sent out. Note that after a predetermined period of time has elapsed after the detection means 42 detects a fish, the control means controls the drive rod 4 of the air cylinder 46.
7 is degenerated. This predetermined period is selected during which the claw member 53 rotates and almost reaches the top. As a result, the fish body is reliably caught and transported by the claw member 53. When the next fish is detected by the detection means 42, the drive rod 47 of the air cylinder 46 is extended in the same manner as described above.
The holding member 43 is displaced in the direction opposite to the direction of the arrow F to block the fish transport path. In this way, in response to the output from the detection means 42, the drive rod 47 of the air cylinder 46 is extended or retracted by the control means, thereby controlling the opening and closing of the holding member 43 to control the transport path of the fish. By blocking or allowing the fish, it becomes possible to keep the interval between the preceding fish and the following fish constant and transport them one by one, making it possible to control the weight of fish supplied. This allows smooth automation in subsequent processing equipment.

FIG. 10 is a simplified side view of another embodiment of this fish feeding device 3, and FIG. 11 is a plan view thereof. In this embodiment, the ratchet wheel 40 and the blocking means 41
A detection means 42 is provided between the two. The fish are transported by an endless belt 60 wrapped between a pair of pulleys 58 and 59. Fish body is the detection means 4
2, the blocking means 41 blocks the transport path and stops the subsequent transport of fish. The detected fish is hooked by the claw member 53 and transported, as in the previous embodiment. When the detection means 42 no longer detects fish, the blocking means 41 opens the transport path and allows the passage of fish. In this way, the opening and closing operations of the blocking means 41 are sequentially performed as the fish pass through, thereby controlling the amount of fish supplied.

Note that by adjusting the distance L between the blocking means 41 and the detecting means 42, it is possible to control the amount of fish supplied.

FIG. 12 is a perspective view of the vicinity of the small diameter end of the holding member 43, and FIG. 13 is a side view of the vicinity of FIG. 12. An upper guide member 60 and a lower guide member 61 arranged below the holding member 43 constitute a transport path 62 for transporting the fish. A pair of first notches 63 that are open toward the downstream side are formed at the downstream end of the upper guide member 60 in the conveyance direction. A second notch 64 that opens toward the upstream side is formed at the upstream end of the lower guide member 61 in the conveying direction B. The first notch 63 and the second notch 64 extend along the conveyance direction B and are each arranged in a straight line. A step 65 is formed between the upper guide member 60 and the lower guide member 61 by a distance l1. The ratchet wheel 40 is arranged directly below the first notch 63 and the second notch 64. The pawl member 53 of the ratchet wheel 40 passes through the first notch 63 and the second notch 64 and is angularly displaced around the axis of the shaft 58 while protruding above the first notch 63. When the claw member 53 rotates and the fish being held down by the holding member 43 is hooked and transported, the holding member 43 is held with the tail first.
When the fish is held down by the fish, the claw member 53 engages near the tail of the fish facing downward from the first notch 63, and the fish moves from the upper guide member 60 to the lower guide member 6.
However, as the ratchet wheel 40 rotates, the claw member 53 passes through the second notch 64 and moves downward while facing the downstream side in the transport direction B, and the fish's tail is moved downward. Since it comes into contact with the extending portion between the two notches 64, the claw member 5 is removed from the vicinity of the tail.
3 can be easily extracted. By this,
It is possible to prevent the problem of fish getting caught in the claw member 53 and getting stuck.

FIG. 14 is a perspective view of the fish head/tail discrimination device 5. Referring also to FIGS. 6 and 7, this head-to-tail discrimination device 5 includes a pair of reflective photodetectors 70 and 71 constituting a first detection means provided on the conveyance path downstream of the brush wheel 58. and a light projecting type photodetector 72 constituting a second detection means. The photodetector 70 includes a light emitting element 70a and a light receiving element 70b, and the other photodetector 71 similarly includes a light emitting element 71.
a and a light receiving element 71b. These photodetectors 70 and 71 are arranged diagonally above the conveyance path,
And they are arranged shifted along the conveyance direction B.
This prevents malfunctions from occurring when the two lights from the light emitting elements 70a, 71a interfere and are received by the light receiving elements 70b, 71b.
Note that when the wavelengths of the two lights from the light emitting elements 70a and 71a are different, the detectors 70 and 71 do not need to be disposed offset with respect to the transport direction B.

A light projecting type photodetector 72 is provided near the downstream side of the photodetectors 70 and 71 in the transport direction B. This photodetector 72 includes a light emitting element 72a provided facing a through hole 74a formed in a side wall of a conveyance gutter body 73 having a U-shaped cross section perpendicular to the axis of the member constituting the conveyance path;
A light receiving element 72b is disposed facing a through hole 74b formed on the side of the conveyance gutter body 73. The light emitting element 72a and the light receiving element 72b are arranged on a straight line, orthogonal to the transport direction.

FIG. 15 is a block diagram showing the electrical configuration of the fish head/tail discrimination device 5. As shown in FIG. Detection signals from the detectors 70, 71 and the photodetector 72 are provided to a processing circuit 75 implemented by a microcomputer or the like. Connected to the processing circuit 75 are a drive circuit 77 for driving an air cylinder 76 shown in FIG. 6, and a drive circuit 79 for driving an air cylinder 78 serving as an opening/closing drive means. These processing circuits 75 and drive circuits 77 and 79 constitute a control means.

The fish identified by this fish head/tail identification device 5 has different color shading on its back and abdomen, as shown in FIG. For example, the dorsal side is black and the ventral side is white.
It is preferably used for fish that can be clearly distinguished, such as Sukemune.

The processing circuit 75 compares the outputs from the detectors 70 and 71, and for example, if the output from the detector 70 is larger than the output from the detector 71, the fish is transported with its abdomen facing toward you. detected. Further, if the output from the detector 71 is larger than the output from the detector 70, it is detected that the fish has been transported with its abdomen facing the rear side. Therefore, these detectors 70, 71
As shown in FIG. 17, it is detected that the fish has passed only in the part indicated by reference numeral l3, excluding the head and tail parts, which are entirely black. On the other hand, since the detector 72 is a light projecting type detector, it can detect the presence or absence of fish in the area indicated by reference numeral l4 in FIG. 17, which is slightly near the head and tail of the fish.

That is, when the fish is transported with the tail first, the detection start position P1 of the detectors 70 and 71 is located downstream of the detection start position P2 of the detector 72 by a distance Δl4 in the transport direction. This is due to the shape of the fish, and the thickness T of the fish is detected earlier than the width W in the dorsal and ventral direction, and the light is blocked.

The operation of such a fish head/tail discrimination device 5 will be explained. When the fish is transported with the head at the top, the outputs from the detectors 70 and 71 are at the same level near the head, so the processing circuit 75 cannot yet determine the presence or absence of the fish. However, in the detector 72 , the light is blocked by the head of the fish and the presence or absence of the fish can be detected, and this detection signal is given to the processing circuit 75 . As a result, the processing circuit 75 determines that the fish has been transported with the head at the top, and in this case, the drive circuit 79
A disabling signal is applied to the air cylinder 78, whereby the bottom plate 69 (see FIG. 7) connected to the air cylinder 78 is closed.

Next, when a fish is transported with the tail first, the presence or absence of fish is detected by the detectors 70 and 71 before the presence or absence of fish is detected by the detector 72, so the processing circuit 75 is activated. Air cylinder 78 is activated via circuit 79 and bottom plate 69 is activated.
(See Fig. 7) is opened, and the fish that has been transported with the tail first is discharged to the outside at this part.
As a result, fish that have been erroneously transported with their tails first in the fish alignment and feeding device 2 are reliably removed, and it becomes possible to accurately arrange and feed fish in subsequent processing.

The processing circuit 75, drive circuit 79 and air cylinder 78 constitute a drive means.

Note that by distinguishing the head and tail of the fish using the combination of the detectors 70, 71 and the detector 72, it is possible to image the fish using an industrial television camera as in the past. Compared to a configuration that performs image processing to determine the head and tail of the image, the device can be made smaller and the cost can be reduced.

FIG. 18 is a perspective view of the vicinity of the arrangement device 6 on the dorsoventral part of the fish, and FIG. 19 is a sectional view taken along the cutting plane line - in FIG. 18. Referring to FIGS. 6 and 7, this fish alignment device 6 includes the reflective photodetectors 70 and 71, a transport member 80 having a downwardly concave transport path in the shape of an arc, and a transport path B. The extending first guide member 81 is fixed to the downstream end of the first guide member 81 in the conveyance direction B, and is inclined upwardly and toward the center of the conveyance path as it becomes downstream of the first guide member 81 in the conveyance direction B. The second guide member 8
2, and an air cylinder 76 as a means for driving the first and second guide members 81 and 82 for angular displacement around the vertical axis. The conveying member 80 is in the conveying direction B.
Notch 83 that opens on the downstream side and extends in the conveyance direction B
is formed. An endless belt 86 wound between pulleys 84 and 85 is arranged below this notch 83. The upper surface of this belt 86 has a small protrusion 8.
7 is provided. The fish that has reached the vicinity of the notch 83 is further transported in the transport direction B by this belt 86.

The conveying member 80, the first and second guide members 8
1 and 82 and the air cylinder 76 constitute dorsal and ventral alignment means.

An L-shaped locking piece 88 is provided at the downstream end of the first guide member 81 , and this locking piece 88 is connected to a drive rod 89 of the air cylinder 76 . Air cylinder 76 is fixed to casing 90a.
In addition, since the second guide member 82 is inclined upwardly toward the downstream side in the conveying direction B, there is a gap between the second guide member 82 and the belt 86.
A gap L3 is formed, and this gap L3 constitutes an escape for the fish's abdomen.

As shown in FIG. 20, when the fish passes through the detectors 70 and 71, the processing circuit 75 judges the outputs of the detectors 70 and 71 as described above. When the fish is transported, the output of the detector 70 becomes larger than the output of the detector 71, and it is thereby detected that the fish has been transported with its abdomen facing toward the front side. In this embodiment, it is required that the fish be transported with its abdomen facing toward you. Therefore, when the abdomen is being transported with the back side facing, the guide member 81,
82, it is necessary to turn the fish over so that the abdomen is facing you.

The operation of this fish alignment device 6 will be described with reference to FIGS. 21 and 22. First, the 21st
As shown in FIG. 1, when the patient is transported with the abdomen facing toward the front, the detectors 70 and 71 detect this, and the processing circuit 75 gives a control signal to the drive circuit 77. As a result, the drive rod 89 of the air cylinder 76 is extended. As a result, the first guide member 81 and the second guide member 82
moves in the horizontal direction and is displaced around the axis of the hinge pin 90b of the hinge 90 in the direction of arrow F3.
As a result, the transport path for the fish is opened, and the fish is transported in the same position by the belt 86 with its ventral side facing the front side.

Next, when a fish is transported with its ventral side facing the rear side, this is detected by the detectors 70 and 71, and the processing circuit 75 activates the drive circuit 77, and the air cylinder 76 drive rod 8
Degenerate 9. As a result, the first guide member 81
The second guide member 82 is angularly displaced in the direction opposite to the arrow F3, and the first guide member 81 is positioned closer to the center of the conveyance path. This results in the second
1. The fish in the state indicated by reference numeral K1 shown in FIG. 2 moves to the position K2, and the back of the fish is lifted by the first guide member 81, and the fish is changed from the state shown in FIG. 1 to FIG. 22 2. It will stand up like this. Further, when the fish is transported and positioned at reference mark K3 in FIG. 21, it enters the lower part of the second guide member 82 and is pressed so that its dorsal side becomes the rear side, and is turned over as shown in FIG. 22. state. Further, in this state, the fish is further transported and in the state K4 shown in FIG. 21, the fish is completely turned back so that its dorsal side is on the rear side as shown in FIG. 22, and In this way, the fish is aligned dorsoventrally.

Although in this embodiment, the ventral side is conveyed with the front side facing the front side, it is of course possible to convey the body side with the dorsal side facing the front side.

FIG. 23 is a simplified perspective view of the vicinity of the fish head cutting device 7. The fish whose dorsal and ventral sides have been aligned by the fish arraying device 6 are conveyed by the belt 86 and further conveyed by the brush wheel 91 to the downstream side in the conveying direction. The bottom plate 69 located directly below the brush wheel 91 is opened when the fish head/tail discrimination device 5 detects that a fish has been transported with the tail at the top. Fish with tails first are eliminated. In this way, the fish is transported to the fish head cutting device 7 with the head at the top and the abdomen facing toward the front.

When a fish is conveyed to the fish head cutting device 7, the bottom plates 92 and 93 are in an open state, thereby causing a plurality of A fish is mounted on the mounting plate 95 of. This bottom plate 92,
One cycle period of opening and closing of the fish 93 corresponds to one revolution of the ratchet wheel 40, so that it is possible to reliably place the fish one by one on the mounting plate 95. The placed fish is conveyed by a conveyor 94, and the leading end of the fish is positioned by a holding plate 96 as it moves. In this state, the head of the fish is cut off by the cutter 97 located downstream of the conveyor 94 in the direction of movement.

In this way, the automatic fish body alignment machine 1 can reliably automatically cut off the heads of each fish one by one.

Effects As described above, according to the present invention, the first detection means 70 and 71 are used to detect when the fish is transported with the tail first in the head-to-tail discrimination means, and to detect when the fish is transported in the dorsal-ventral direction in the dorsal-ventral alignment means. In addition to serving as a second detection
Since head-to-tail discrimination is detected by the detector 72, the configuration can be simplified and the head-to-tail discrimination and dorso-ventral discrimination of the fish can be performed continuously as a series of operations, and the fish alignment process can be performed accurately. In addition, it is possible to perform the process quickly, and it is possible to reduce the size and cost of the device.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the overall configuration of an embodiment of the present invention, Fig. 2 is a plan view of the vicinity of the fish arranging and feeding device 2, Fig. 3 is a side view of the vicinity of the fish arranging and feeding device 2, and Fig. 4 is a sectional view of the conveying plate 21, and FIG.
5, FIG. 6 is a plan view of the fish supply devices 3 and 4, the fish head/tail discrimination device 5, the fish alignment device 6, and the fish head cutting device 7; FIG. 7 is a side view of FIG. 6;
8 is a perspective view of the holding member 43, FIG. 9 is a sectional view taken from the cutting plane of FIG. 8, FIG. 10 is a side view of another embodiment of the fish feeding device 3, and FIG. 10 is a plan view, FIG. 12 is a perspective view of the vicinity of the fish feeding device 4, FIG. 13 is a side view of FIG. 12, and FIG.
15 is a block diagram showing the electrical configuration of the fish head and tail discrimination device 5, and FIG. 16 is a plan view of a fish discriminated by the head and tail discrimination device 5. , FIG. 17 shows the reflection type photodetector 7.
18 is a perspective view of the vicinity of the fish arraying device 6, and FIG. 19 is a cross-section line of FIG. 18. 20 is a diagram for explaining the operation of the reflective photodetectors 70, 71, and FIGS. FIG. 23 is a perspective view of the vicinity of the fish head cutting device 7. 40... Claw, 41... Conveying means, 42... Detecting means, 43... Pressing member, 46... Air cylinder, 53... Claw member, 54... Supply roller, 5
8,91...Brush wheel, 69...Bottom plate, 70,7
1...First detection means, 72...Second detection means, 7
3...Gutter body, 81...First guide member, 82...Second guide member, 86...Belt.

Claims (1)

[Claims for Utility Model Registration] Transport of a fish that opens upward and is curved in a U-shape in cross section perpendicular to the axis of the member, whose tail is narrower than its head, and whose back and abdomen are shaded in color. Direction B
a gutter body 73 that is transported toward the gutter body 73; and a gutter body 73 that is provided above the gutter body 73 and has a detection position set within the passage path of either the back or abdomen of the fish in the gutter body 73. 1 detector 70 and a second detector 71 whose detection position is set within the passage path of either the back or abdomen, and the first and second detectors 7
first detection means 70 and 71 that emit light toward each detection position from 0 and 71 to detect the back and abdomen of the fish; and the first detection means 70 that extends in a direction intersecting the transport path. , 71 or near the downstream side of the detection position in the transport direction B, and the light emitted from the light emitting element 72a is received/blocked by the light receiving element 72b.
Second detection means 72 for detecting presence/absence of fish
and, connected to the gutter body 73, along the passage path of either the back or the abdomen in the conveying direction B.
A first guide member 81 extends downstream, and is fixed to an end of the first guide member 81 on the downstream side in the conveyance direction B. A dorsoventral aligning means 8 having a second guide member 82 inclined toward the center and a belt 86 provided adjacent to the guide member 81 and conveying the mounted fish downstream in the conveyance direction B.
1, 82, 86, a bottom plate 69 which is provided downstream of the dorsoventral aligning means 81, 82, 86 in the transport direction B and can be opened and closed with the transport path facing downward; and for driving the bottom plate 69 to open and close. an angular displacement drive means 76 for angularly displacing the first guide member 81 together with the second guide member 82 in a direction approaching the conveyance path; and outputs from the first detection means 70 and 71. In response, when the output of one of the detectors 70, 71 is larger than the output of the other of the detectors 70, 71, the angular displacement driving means 76 is driven to 2 guide members 81, 8
2 is raised, and when the outputs from the first detection means 70 and 71 are inputted before the second detection means 72, the opening/closing drive means 78 is driven to open the bottom plate 69.
A fish feeding device characterized in that it includes control means 75, 77, and 79 for opening.