JPS6212966B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to an apparatus for sorting small fish by size.

As shown in the vertical cross-sectional view of FIG. 1, the conventional fish sorting device supports a large number of round bars 1 in parallel to form sorting gaps 2 between the round bars. By rotating the fish, the fish fed above were allowed to fall through the sorting gap 2 and were sorted by size. A sorting device with this structure is capable of sorting relatively large fish, but it is also capable of sorting sardines for dried sardines, whitebait, etc.
There was a drawback that very small fish, such as kouna, could not be sorted. This is because when the sorting gap 2 is narrowed in order to sort out small fish, the width of the sorting gap 2 relative to the diameter of the round bar 1 becomes extremely small, and the shape of the sorting gap 2 becomes downwardly tapered, resulting in a narrow opening angle. As α became smaller, the sliding of the sorting gap 2 became poor, resulting in fish getting stuck there. The reason why it becomes difficult for fish to slip through the sorting gap is because the sorting gap gets clogged with fish that are slightly larger than this width.

Furthermore, in the sorting member with this structure, when the sorting gap 2 is narrowed in order to sort small fish, the sorting gap relative to the diameter of the round bar becomes narrower, and the effective sorting area is extremely reduced, which significantly reduces the throughput. did.

In order to eliminate these drawbacks, the diameter of the round bar 1 may be reduced. However, the elongated round rod has the disadvantage that it becomes loose due to the weight of the fish placed on it, making the sorting gaps uneven, resulting in large errors and variations in the size of the sorted fish.Furthermore, even if it is rotated, With a thin round rod, the area of contact with the fish is extremely reduced, resulting in the problem that the fish cannot fall smoothly.

The present invention was developed to somehow put the sorting of small fish into practical use, and the shape and movement state of the conventional sorting member were fundamentally changed. Moreover, it is an object of the present invention to provide a fish sorting device that can sort fish with little variation and with high efficiency.

Another important object of the present invention is to provide a fish sorting device that has a large effective sorting gap relative to the installation area, is small in size, and has a large throughput.

Embodiments of the present invention will be described below based on the drawings.

The fish sorting device shown in FIG. 2 to FIG.
Not limited to reciprocating motion on a straight line in short cycles,
For example, a device with a long period of several seconds is also provided with a driving means for causing movement (which also includes movement on a circular or similar orbit).

The sorting members 3 are arranged parallel to each other at regular intervals to form a sorting gap 4, and the fish to be sorted supplied to the left end are moved to the right while being sorted. It is inclined downward in the direction of travel and is composed of a guide member 5 and a movement member 6 so as to be easily moved by a driving means.

As shown in FIG. 3, the moving member 6 has an inverted U-shape in vertical cross section, has an inner surface that slides along the guide member 5, and has one end that connects a pin 8 to the upper end of a swinging arm 7 serving as a driving means. connected via. The vertical cross-sectional shape of the moving member 6 is bent so that the radius of curvature of the corner is relatively small so that fish will not get caught in the sorting gap 4.

The sorting members 3 are normally arranged in parallel, but if they are arranged so that the sorting gap 4 becomes somewhat wider in the direction of travel, sorted fish of approximately the same size as this gap will be sandwiched in the sorting gap 4. Even if it falls, it will fall and be removed by being moved forward.

Furthermore, as shown in FIG. 5, a sorting container 9 divided in the direction of movement of the fish is arranged below the sorting member 3, and the sorting gap 4 is gradually widened as the sorting member 3 is moved in the direction of movement. If the arrangement is as follows, the larger fish will be gradually selected from left to right.

The driving means includes a deceleration motor 10 and this motor 1.
A crankshaft 11 fixed to a rotating shaft of 0 is connected to a connecting rod 13 whose right end is connected to the crank pin 12 of this crankshaft 11, the left end of this connecting rod 13 is connected with a pin in the middle, and the lower end is connected with a pin to a base. When the motor 10 rotates, the swing arm 7 vibrates, and the swing arm 7
The moving member 6 is vibrated in the longitudinal direction.

The vertical cross section of the sorting member 3 is taller than it is wide, that is, it is formed into a slender shape, and the width and height are determined by the size of the fish to be sorted. For example, if the sorting gap is about 2 mm, the width of the guide member is 3 mm.
It is best to form it to a height of 10 to 30 mm.

The fish falls from the sorting gap 4 parallel to the sorting member 3. Figures 6 to 9 show a sorting member that allows fish to be easily oriented vertically.

The sorting member 3 shown in FIG. 6 is such that a fixed member 3a that does not move in parallel is disposed between every other vibrating sorting member 3, and the sorting members 3, 3a adjacent to each other are This shows that the fish is directed vertically by the relative movement in the vertical direction.

In Fig. 7, adjacent sorting members 3 are vertically shifted and arranged in parallel, and the sorting members 3 form a plurality of height grooves in the vertical direction, and the fish are oriented vertically by the height grooves. Show what is possible.

Furthermore, in FIGS. 8 and 9, adjacent sorting members 3 are moved in opposite directions in synchronization, thereby causing them to move vertically relative to each other, and the two sets of sorting members 3 are moved in different oscillations. connected to arms 7a and 7b;
Each of the swinging arms 7a, 7b has connecting rods 13a, 13b connected to the swinging arms 7a, 7b.
, and each set of sorting members 3 is vibrated in opposite directions by a crankshaft 15.

The sorting member 3 is generally arranged in a downward slope as shown in FIG. 2 so that fish fed to one end slide down in one direction.

It is possible for the drive means to transport the fish placed on the sorting member 3.

10 and 11, a fixed member 14 is disposed between and parallel to the movable member 6, and the fixed member 14 and the movable member 6 are disposed at an upward slope in the direction of movement of the fish. There is. The moving member 6 has both ends connected to crank pins of crankshafts 16 and 17 that rotate clockwise in synchronization, and is itself connected to the fixed member 1.
4, and as shown in FIG. By rotating both ends in a vertical plane, it moves up and down from the fixed member 14, moving in the direction of movement of the fish in the ascending process, and in the opposite direction in the descending process. It is arranged so that According to this structure, the fish placed on the top is moved forward by being placed on the moving member 6, and when the moving member 6 moves back, it is placed on the fixed member 14, so that it is not moved back together with the moving member 6, but moves forward. will be moved only.

If the descending speed of the moving member 6 is faster than or close to the falling speed of the fish placed on it,
Even if there is no fixed member between the movable members 6, if all the movable members 6 are rotated in a direction in which both ends face the direction in which the fish is traveling, as shown in FIG. 10, the fish can be moved forward. is possible.

In FIG. 12, a vibrator 18 as a driving means is attached to one end of the moving member 6, the moving member 6 is attached to the guide member 5 via an elastic body 19, and the moving member 6 is attached to a spring 20 or a rubber-like elastic body. It is placed on the guide member 5 via. The vibrator 18 is, for example, one in which an eccentric flywheel is rotated to generate vibrations, one in which vibrations are generated in a straight line by a linear motor synchronized with the frequency of a power supply, or one in which current is intermittently passed through an electromagnet. A device that vibrates in a straight line can be used.

A vibrator whose balancer rotates and moves is
A balancer is secured to the motion member for rotation in a vertical plane containing the sorting member. At this time, when the balancer is rotated in a direction in which the upper side faces the direction in which the fish is traveling, to the right in FIG. 12, the fish is moved forward to the right by the vibrations. Thus, in this case the sorting member may be horizontal or may be inclined upwardly.

When the sorting member 3 is vibrated in a straight line by the vibrator 18, the direction of vibration is preferably determined to be parallel to a vertical plane containing the sorting member 3. If the vibration direction is determined to rise in the direction of movement of the fish, as shown by the chain line in FIG. 12, it becomes possible to transport the fish by vibration.

As described above, in the fish vibrating device according to the present invention, the vertical cross-sectional shape of the sorting member is formed into a slender shape with a height higher than its width, and when the sorting member is vibrated, the vertical cross-sectional shape is formed into a slender shape. The structure is such that the supplied fish are dropped through a sorting gap and sorted by size, so by making the gap between the sorting members extremely narrow, it is possible to sort fish that cannot be sorted with conventional rotary round rods. The small fish can be efficiently sorted, and there is no irregularity in the sorting gaps caused by the hanging of the sorting member, and the evenly spaced sorting gaps allow small fish to be sorted accurately.
Moreover, it can be precisely sorted with little variation, and
Since the fish are sorted by vibrating the sorting member, the means for driving the sorting member can be significantly simplified, and the drive mechanism is not limited by the distance between the sorting members, allowing the gap between the sorting members to be made as narrow as possible. The vibration of the sorting member improves the slippage between the fish and the sorting member, so even if the width of the sorting member becomes narrower and the contact area between the sorting member and the fish decreases, the fish will not be affected by the vibration of the sorting member. As a result, even small fish can be sorted smoothly without getting stuck between the sorting members, and the width of the sorting member can be narrowed in relation to the sorting gap, increasing the effective sorting area and reducing the size and processing capacity. It becomes a large fish sorting device.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional fish sorting device, and FIG. 2 is a side view of a fish sorting device showing an embodiment of the present invention.
3 and 4 are cross-sectional views and plan views of the sorting member of the fish sorting device shown in FIG. 2, FIG. 5 is a side view of the fish sorting device showing another embodiment, and FIGS. 6 and 7. The figure is a cross-sectional view of a sorting member showing still another embodiment, FIGS. 8 and 9 are side views and plan views of a sorting member in which adjacent sorting members vibrate in opposite directions, and FIGS. 10 and 11. 12 is a side view of a fish sorting device in which the sorting member moves in parallel, and a cross-sectional view of the sorting member, and FIG. 12 is a side view of the fish sorting device in which the sorting member is vibrated by a vibrator. 1... Round bar, 2... Sorting gap, 3... Sorting member, 4...
Sorting gap, 5... Guide member, 6... Movement member, 7...
Swinging arm, 8... Pin, 9... Sorting container, 10... Deceleration motor, 11... Crankshaft, 12... Crank pin, 13... Connecting rod, 14... Fixing member, 15...
180 degree crankshaft, 16, 17...crankshaft, 1
8... Vibrator, 19... Elastic body, 20... Spring.

Claims (1)

[Scope of Claims] 1 A plurality of sorting members are arranged parallel to each other or almost parallel to each other, a sorting gap is formed between them, and the sorting members are moved by a driving means to feed the materials upward. In a device for sorting fish to be sorted into sizes by dropping them through a sorting gap, the vertical cross section of the sorting member is formed into a narrow height shape that is taller than the width, and the driving means vibrates the sorting member. Characteristic fish sorting device. 2. The fish sorting device according to claim 1, wherein the sorting means comprises a guide member and a moving member that vibrates in the vertical direction along the guide member. 3. The fish sorting device according to claim 2, wherein the moving member has an inverted U-shaped vertical cross section and an inner surface that slides along the guide member. 4. The fish sorting device according to claim 2, wherein an elastic body is interposed between the guide member and the movement member. 5. The fish sorting device according to claim 1, wherein the sorting gap is formed to be somewhat wider in the direction of movement of the fish. 6. The fish sorting device according to claim 1, wherein the sorting member is vibrated in a vertical plane containing the sorting member by a driving means. 7. The fish sorting device according to claim 6, wherein the sorting member is vibrated in the vertical direction by a driving means. 8. The fish sorting device according to claim 6, wherein one end of the sorting member is connected to a crank pin of a driving means, and is rotated and vibrated in a vertical plane by the driving means. 9. The fish sorting device according to claim 6, wherein the driving means is a vibrator. 10. The fish sorting device according to claim 6, wherein the sorting members adjacent to each other move relative to each other in a vertical plane. 11. The fish sorting device according to claim 1, wherein the sorting members adjacent to each other are arranged so as to create a height difference. 12. The fish sorting device according to claim 1, wherein the sorting member is arranged horizontally or downwardly. 13 The sorting member is arranged on an upward slope, and
The fish sorting device according to claim 1, which is vibrated vertically and longitudinally by a driving means, vibrated forward in the ascending step and backward in the descending step.