JPS6227774B2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a device for sorting caught fish by size, and in particular, it uses dynamic friction to sort sardines, whitebait, squid, shrimp, saury, and horse mackerel for drying. , relates to a fish sorting device that sorts small fish such as mackerel by size.

B. Conventional technology Fish caught with nets include a mixture of fish of various sizes. Whether this fish is used for fresh fish or for processing, large added value can be generated by sorting it according to a certain size. However, at present, there is no practical equipment for efficiently sorting fish by size, and the reality is that almost all fish are sorted manually. Therefore, this sorting process requires considerable effort, time, and effort, and this process has the drawback of significantly reducing freshness.

By the way, as a fish body sorting device, a device has been proposed in which endless belts are arranged in a grid pattern and square bodies are sorted into large and small fish bodies between the belts (Japanese Utility Model Publication No. 78698/1983). Furthermore, a device has been proposed in which an endless belt is moved between grids and fruits are sorted between the grid and the belt (Japanese Patent Publication No. 35093/1983).

Furthermore, a device has been developed in which a plurality of rollers rotating around a shaft are arranged so that the distance between them becomes wider as they move toward the direction of fish movement, and the fish to be sorted are fed onto the rollers. 41-15919 and Japanese Patent Application Laid-Open No. 53-22097).

C. Conventional Problems However, in the device that separates fish into large and small fish between belts, the belt does not have the effect of aligning long and slender fish in the transport direction, and the fish that are fed across the belt are not aligned parallel to the belt. There was a drawback that they could not be sorted by size by arranging them.

The total length of the fish body is many times longer than its thickness, so
Unless they are lined up parallel to the belt, they cannot be sorted by size without error.

In a sorting device that cannot align the fed fish bodies parallel to the belt, the fish bodies fed across the belt may remain on the belt and be transferred to the delivery side without being sorted, passing between the belts and falling for sorting. Not done.

Therefore, in a size sorting device for elongated objects such as fish bodies, aligning the fish bodies parallel to the belt has a significant effect on the sorting performance.

A sorting device with multiple rollers connected in parallel can align fish lengthwise with rotating rollers. However, since this sorting device rotates the roller in a fixed direction, it has the disadvantage that the fish that are fed randomly without any direction will end up being biased to one side due to the direction correction, and the roller only rotates in a fixed direction. Therefore, the fish were always moved only in a fixed direction, and there was a drawback that the effect of correcting the direction parallel to the grid-like rollers was not sufficient.

The present invention has been developed to eliminate these drawbacks of conventional sorting devices and to have even more superior features.An important objective of the present invention is to efficiently line up fish and sort them by size. To provide a fish sorting device that can reduce variation in fish.

D Means for Solving Conventional Problems The fish sorting device includes a plurality of sorting members, a driving member for the sorting members, and a fish supply means.

The sorting member is inclined downward in the direction of fish transfer, and is formed into an elongated shape with a circular cross section at least at the fish contacting part, and
They are attached to the base in parallel to each other or in arrays with increasingly wider intervals in the direction of travel.

The driving member rotates the sorting member reciprocatingly through a required angle about the axis of the sorting member.

The supply means supplies the fish to be sorted to the upper part of the obliquely arranged sorting member.

E Functions and Effects In the fish body sorting device of the present invention, a plurality of sorting members whose contact portions with fish have a circular cross-sectional shape are arranged in parallel or in such a manner that the distance becomes wider as they face toward the direction of movement of the fish. This sorting member has a unique configuration in which the driving member is rotated reciprocatingly through the required angle around the axis of the sorting member.
Due to the lateral movement of the surface of the sorting member, the fish fed onto the sorting member receive an aligning force in the direction perpendicular to the sorting member while being slid, and this lateral force causes them to be aligned parallel to the sorting member. are aligned.

Fish are aligned by the horizontal reciprocating movement of the upper surface of the sorting member.
The whole surface does not contact the sorting member uniformly, and the contact state differs locally, and the weight of the fish's head and tail differs, so the force to turn the fish sideways differs partially, and the fish constantly Rather than reciprocating in a state where the entire body moves horizontally in parallel, some parts are subjected to strong forces to the right or left, and other parts are aligned by receiving weak horizontal forces. Therefore, as the fish bodies are fed to the sorting member without any direction, as they are moved along the sorting member, they are aligned in the direction that is most likely to pass between the sorting members and ideal for sorting. They fall through the gap and are sorted by size. Therefore, it is possible to reduce the possibility that small fish bodies that can pass between the sorting members when aligned are sent out without falling between the sorting members in a posture that crosses the sorting members, regardless of the fish supply state, that is, This simplifies the supply of fish and allows the fish to be accurately sorted into sizes.

Further, in the sorting device of the present invention, the sorting member does not rotate continuously in a fixed direction, but rotates and vibrates within a certain angular range around the axis. Therefore, the fish fed onto the sorting member are not moved in a fixed direction by the rotation of the sorting member, but are evenly distributed over the entire surface of the sorting member and are effectively sorted.

Furthermore, in the sorting member that rotates and vibrates within a predetermined rotational angle range, the local contact area between the fish and the sorting member fluctuates drastically over time. In this state,
A fish whose head and tail have different weights will have different forces to turn it sideways, and some parts will receive a strong force to the right or left without the whole fish moving horizontally in parallel.
Also, some parts are effectively aligned under weak lateral forces. Therefore, even if the rollers rotating in a fixed direction cannot line up the fish, the fish can be lined up more effectively and the fish can be sorted with fewer errors in size.

Furthermore, compared to the conventional device that rotates the sorting member, the sorting device of the present invention that rotates the sorting member by a required angle can make the sorting member thinner and widen the gap area of the sorting member relative to the overall planar area. The processing capacity per installation area can be increased.

This is because if the sorting member is to be rotated, a pulley for rotating the sorting member must be fixed to one end of the sorting member. This is because if the pulley is small, the pulley and the belt hooked thereon will slip, which limits the minimum diameter of the pulley.

On the other hand, the sorting device of the present invention does not require a pulley and has a simple structure, such as connecting a swing arm to it, since it is only necessary to rotate the sorting member by the required angle without rotating the sorting member. Can be installed in narrow spaces.

Furthermore, the fish contacting surface of the sorting member, i.e., the upper surface,
Unlike conventional roller-type sorting devices, it does not always move in a fixed direction, but reciprocates from side to side and changes the direction of movement, which prevents fish from being strongly caught between the sorting members and improves the sorting process. This can prevent damage to the fish being fed.

F Preferred Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

The fish sorting device shown in FIG. 1 is tilted downward in the direction of fish transfer (towards the right in FIG. 1) so that the supplied fish are transferred while sliding down, and the device itself is a plurality of sorting members 1 formed in the shape of an elongated rod and arranged in parallel or so that the intervals gradually become wider in the direction of movement of the fish, as shown in FIG. 2;
a driving means for rotating the sorting member 1 by a required angle;
A supply means 2 for supplying non-sorted fish along with water is provided at one end of the upper part of the sorting member 1.

As shown in FIG. 4, the sorting member 1 is rotatably attached to the base 5 via bearings 3 and 15 at both ends, and is itself a thin-walled pipe made of, for example, SUS with a polished surface. It is.

The smaller the outer diameter of the sorting member 1, the greater the processing capacity per area of the sorting device. However, if it is long and thin, it will bend. In the case of small fish such as sardines, for example, the outer diameter is 20 mmφ and the total length is about 2 m.

As shown in FIG. 3, the sorting member 1 is connected to one end of a swing arm 10 serving as a driving means, and the swing arm 10 is also reciprocated at a desired angle about the axis of the sorting member.

The drive means includes a swing arm 10, a swing rod 11, and a drive member for reciprocating the swing rod 11 in the length direction. The swing arm 10 is fixed to one end of the sorting member 1, and the end of the swing arm 10 is connected to a swing rod 11 that reciprocates in the axial direction.A connecting rod 12 of a driving member is connected to one end of the swing rod 11. One end of the connecting rod 12 is connected to a crank pin 13, and the crankshaft 14 is rotated, thereby causing the sorting member 1 to reciprocate and rotate.

By the way, if a flexible member with appropriate hardness is used for the swing arm 10, it will operate smoothly even if there is a slight positional error in the set piece.

The sorting member 1 shown in FIG. 4 has a hollow cylindrical shape as a whole, and one end of the hollow portion has a bearing 15 fitted inside and is supported by a base via the bearing 15.
A drive rod 16 with a collar 17 is inserted into the other end,
This drive rod 16 is rotated, and the sorting member 1 is rotated.

If the sorting member 1 is extremely elongated, as shown in FIGS. 5 and 6, the middle of the sorting member 1 is supported from below by a receiving member 18, and the sliding portion of the receiving member 18 with the sorting member 1 is prevented from friction. If it is made of a synthetic resin or the like with low resistance, the receiving member 18 can prevent hanging without hindering the movement of the sorting member.

The receiving member 18 can also support the entire sorting member 1 on its lower surface, as shown by the chain line in FIG.

By the way, in the fish sorting device of the present invention, the fish are sorted by size by falling from between the sorting members 1 while sliding them down, but if the sorting members 1 are completely parallel, there will be no space between the sorting members 1. In some cases, a fish whose thickness is almost equal to the distance between the sorting members becomes stuck in the cheek, that is, in a hanging state, and cannot be dropped. In order to avoid this, as shown in Fig. 2, the distance between the sorting members 1 is made slightly wider in the direction of movement of the fish, and the fish whose cheeks have been stung are moved in the direction of movement and gradually removed. It is only necessary to drop them from the sorting member 1 where the interval is wide.

As shown in FIGS. 1 and 7, when the sorting units 22 are connected in multiple stages, the upper stage has sorting members with wider intervals, and the lower stage has sorting members with narrower intervals. , and each sorting unit 22
A downwardly sloping inner chute 23 is provided in between to catch fish falling between the sorting members 1, and this inner chute 23 also supplies fish falling from the upper stage to the lower sorting unit 22. Good.

This is because, according to this structure, the interval between the uppermost sorting members 1 can be made the largest, so the uppermost sorting unit 22 can have the maximum processing capacity, and it is possible to sort out large fish and sort out some of them. Since fish to be sorted whose quantity has decreased can be sorted by the lower sorting unit having a smaller sorting capacity, the widths, ie, the total areas, of the upper sorting unit 22 and the lower sorting unit 22 can be made almost equal.

The inner chute 23 shown in FIG. 8 has a trap-shaped water reservoir 27 connected to its end, and the fish that have slipped along the inner chute 23 are transported to the lower sorting unit after falling into the water reservoir 27. Supplied with water. This structure has the effect of reducing damage to fish.

In FIG. 9, fish that have slipped into the inner chute 23 are transported to a desired location using water as a transport medium using a transport pipe 31. The inner chute 23 has a receiving chamber for fish and water at the bottom, and on one side of the receiving chamber,
Water supply port 2 that supplies water here and drains the fish
8 is opened and a return water pump 29 is connected to this supply port 28.
An outlet through which fish and water flow out is opened opposite the water supply port 28, and a transfer pipe 31 is connected to this outlet. Return water pump 2
The suction side of 9 is connected to the drain port of the separator 30 and supplies the water separated by the separator to the water supply port 28 of the inner chute 23 again. A transfer pipe 31 is communicated with the separator 30, and the separator 30 separates water and fish transferred through the transfer pipe 31.

The supply means 2 shown in FIG. 1 includes a reservoir tank 24 in which fish are stored together with water, and a fish pump 25 that sucks the fish in the reservoir tank 24 together with water and transfers them to the upper part of the sorting member 1. Equipped with.

In this way, those that supply water along with fish,
Even with water, the slippage between the fish and the sorting member 1 is improved, the sorting efficiency can be improved, and the damage to the fish can be further reduced.

As shown in FIG. 1, the water supplied together with the fish flows down from the sorting member 1 to the inner chute 23, is again supplied to the sorting member 1, flows down to the lower inner chute 23, and is finally collected. In this case, the fish and water are separated by a separator 26.

When fish and water are not transferred together by a fish pump and only fish are supplied to the sorting member, it is preferable to separately supply water to the sorting member.

[Brief explanation of the drawing]

1 and 3 are schematic sectional views of a fish sorting device showing one embodiment of the present invention, FIG. 2 is a plan view of a sorting member, and FIG. 4 is a sectional view showing an example of a supporting state of the sorting member. 5 and 6 are side views and sectional views showing the receiving member of the sorting member, FIG. 7 is a vertical sectional view of the sorting member shown in FIG. 1, FIG. 8 is a sectional view of the end of the inner chute, and FIG. FIG. 9 is a sectional view showing an example of means for transporting fish in the inner chute. DESCRIPTION OF SYMBOLS 1... Sorting member, 2... Supply means, 3... Bearing, 5... Base, 10... Swing arm, 11
...Swing rod, 12...Conn rod, 13...
...Crank pin, 14...Crankshaft, 15...
Bearing, 16... Drive rod, 17... Tsuba, 18...
... Reception member, 22 ... Sorting unit, 23 ... Inner chute, 24 ... Reservoir tank, 25 ... Fish pump, 26 ... Separator, 27 ... Water reservoir section, 28
... Water supply port, 29 ... Return water pump, 30 ... Separator, 31 ... Transfer pipe.

Claims (1)

[Scope of Claims] 1. They are tilted downward in the direction of fish transport, and are formed in an elongated shape with at least a fish contacting part having a circular cross section, and are parallel to each other or gradually slope in the direction of movement. A plurality of sorting members arranged at wide intervals and attached to a base; a driving member for reciprocating the sorting members by a required angle about the axis of the sorting members; What is claimed is: 1. A fish sorting device, comprising: a feeding means for supplying fish to be sorted at an upper portion thereof, and configured such that the sorting member is reciprocated and rotated to sort the supplied fish to be sorted. 2. The drive member includes a plurality of swing arms fixed to the ends of the plurality of sorting members, a swing rod to which the ends of each swing arm are connected in order to interlock each swing arm, and a swing rod that moves the swing rod in the length direction. 2. A fish sorting device according to claim 1, comprising a drive member that makes reciprocating motion. 3. The fish sorting device according to claim 1, wherein the sorting member is supported from below by a receiving member. 4 A patent claim in which sorting units with different intervals are arranged in multiple stages, a sorting unit with wide intervals between sorting members is disposed in the previous stage, and small fish sorted by the former sorting unit are further sorted by the latter sorting unit. The fish sorting device according to scope 1. 5 Sorting units with different intervals between the sorting members are arranged in multiple stages above and below, a downwardly sloped inner chute is arranged between each sorting unit, a sorting unit with a wider interval is arranged in the upper stage, and the inner chute is 5. The fish sorting device according to claim 4, wherein the fish that have passed between the upper sorting members are supplied to the lower sorting unit. 6. Fish sorting according to claim 1, wherein at least one end of the sorting member is formed into a hollow cylindrical shape, a bearing is fitted inside the hollow part, and the sorting member is supported on a base via this bearing. Device.