JPS6050514B2 - Fish sorting device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an apparatus for sorting fish by size.

In conventional fish sorting devices, multiple long and thin rolls are arranged side by side with gaps between adjacent rolls, and the rolls are arranged at a slight inclination and rotated to place fish on top of the rolls. The fish were then sorted by size by falling through the gaps between the rotating rolls. However, in a sorting device with this structure, the slip condition between the fish and the roller changes depending on the type and freshness of the fish, and the slip speed becomes faster or slower, separating large and small fish from the same gap. The fish fall, causing variations in the sorted fish, resulting in poor sorting accuracy.Furthermore, since the rollers are tilted to sort the fish while moving them downwards, the fish feeding section needs to be raised, making feeding time-consuming. Since the entire roller is rotated, the mechanism of the rotating part of the roller is complicated and the device is large and heavy.Furthermore, the fish body and the roller constantly slip, resulting in scratches on the fish body. Furthermore, the roller cannot be made very thin, and the installation area is quite large compared to the processing capacity. This is because a chain wheel is fixed to one end of the roller to drive the roller, but the roller cannot be made smaller in diameter than this chain wheel.
Since the diameter of the roller relative to the gap is considerably large, it cannot be removed. As a fish body sorting device that solves this drawback, a device has been developed in which endless belts are arranged in a grid pattern and fish bodies are sorted by size between the belts.

(Japanese Utility Model Publication No. 52-7869) Also, an apparatus has been developed in which an endless belt is moved between grids and fruits are sorted between the grid and the belt. (Japanese Patent Publication No. 48-35093) However, in these devices, the belt does not have the effect of aligning the fish bodies in the transport direction, and instead of aligning the fish bodies fed across the belt in parallel to the belt. There were some flaws that I couldn't sort out.

The total length of the fish body is many times longer than its thickness, so unless it is lined up parallel to the belt, it is not possible to select it by size without error.

Conventional sorting devices with rollers arranged in a grid pattern rotate the rollers to align fish parallel to the rollers.

In a sorting device in which the fed fish bodies cannot be aligned parallel to the belt, the fish bodies fed across the belt are transferred to the delivery side without being sorted while remaining on the belt, and are not fed between the belts.

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.

The present invention eliminates all these drawbacks of the prior art and has further advantages by moving the fed fish in a direction parallel to the belt by moving the belt at different speeds in the same direction. An important object of the present invention is that since the fish are sorted by lining them up and falling through the gap between the belts, there is little variation in the size of the fish. To provide a fish body sorting device which has a simple overall mechanism, is small and lightweight, has a large processing capacity, can sort fish bodies while moving them upwards if necessary, and can have a low fish supply position.

Embodiments of the present invention will be described below with reference to the drawings. however,
In explaining the embodiments of the present invention, FIGS. 1 to 9 and 12 to 17 show the basic structure of a fish sorting device using a belt, and FIGS.
Embodiments of the present invention will be described based on the drawings.

The fish body sorting device shown in FIGS. 1 to 3 includes a plurality of endless belts 1, a pulley 2 on which the belt 1 is wrapped and drives the belt 1, and a drive means for driving the pulley 2. .

The belt 1 has a fish sorting section 3 for sorting fish placed thereon according to size, which is almost parallel to each other, and the gap between adjacent belts becomes wider in the fish transport direction, toward the right in FIG. 3.
Moreover, it is installed at a somewhat upward slope in the direction of travel so that it can lift the fish a little while selecting it.

The poo IJ2 is fixed to the drive shaft 4 and the idle shaft 5 at regular intervals to create a fish sorting gap 6 between the belts, and the drive section 4 is connected to the drive shaft 4 and the idle shaft 5 through a chain wheel 7 and a chain 8. , is connected to a deceleration motor 9 which is a driving means.

The fish selection gap 6 created between each belt is adjusted by varying the separation between each pulley 2. Therefore, each pulley 2 is attached to the shaft in a state where the attachment position to the shaft can be adjusted. As shown in FIG. 3, when the belt 1 is stretched so that the fish sorting gap 6 becomes wider in the direction of fish transfer, the sorting containers 10 can be arranged in the direction of fish transfer as shown in FIG. You can select fish by size.

FIG. 4 shows two sorting units 11 with different sorting gaps 6.
, 12 are connected in series, and the two sorting units 1
Belts 1 and 12 are parallel, but the interval between the belts is widened stepwise in the direction of fish transport.

In FIG. 4, the total length of the belt 1 is shortened every other row, and the sorting gap 6 of the left sorting unit 11 is changed to the left sorting unit 12.
Sort the smaller fish on the left and the larger fish on the right. FIG. 5 shows three stages of sorting units 13, 14, and 15 connected in series, and each sorting unit 13, 14 connected in series so that fish fall from the preceding sorting unit to the next sorting unit. , 15 are installed low toward the direction of fish transfer;
It is possible to connect units whose sorting gaps become wider, and it is also possible to connect units whose sorting gaps gradually become wider in several stages, as shown in FIG.

Fig. 6 shows a belt 1 to be connected with a step, and a set of upper and lower step pulleys 16,
17, and this step pulley provides a step on the belt, and the fish are sorted while falling. Incidentally, although it depends on the type, fish are generally long and thin, so it is best to sort them by lining them up parallel to the belt.

To achieve this, as shown in Figure 7, adjacent belts 1 may be staggered vertically, or alternatively, as shown in Figure 1, the belts 1 may be suspended in the path of the fish placed on the belts 1. A pin 18 is arranged and the fish is placed against the depending pin 18 so that it is aligned parallel to the belt, or alternatively, as shown in FIGS. An alignment rotor 20 is fixed to the rotation shaft 19 and rotates in a plane including the belt, and the alignment rotor 20 is moved in a direction opposite to the belt on its lower side.
It is best to rotate it to the right in Figure 9. Figures 10 and 11 show a system in which the speed of adjacent belts 1 is changed to line up the fish vertically, and pulleys 2 of different sizes are fixed on every other drive shaft and idle shaft. late at
Move belt 1 quickly using the large pulley.

In order for the belt to sort fish smoothly, it is best to continuously supply a fixed amount of fish to the belt, that is, to the extent that the fish do not pile up on the belt. 12 and 13 show a device that supplies a fixed amount of fish to the top of the belt 1. In FIG. , the required amount of fish is stored, and the amount of fish that is carried out on the belt conveyor 22 is kept constant through the metering passage 23 on the upper surface of the belt conveyor 22;
This shows what is carried out in fixed quantities by the belt conveyor 22, and the 13th
In the figure, a hopper 24 is provided on the belt 1, and this hopper 2
4 is provided with a level control device 30 to keep the amount of fish in the hopper constant, and the fish are sorted through a selection gap in the belt 1, and the amount of fish sent out of the hopper 24 is controlled by a control plate 25 arranged above the belt 1. The fish outside the hopper 24 are further sorted through the sorting gap of the belt 1, and only the large fish that are not sorted are sent out. In this way, when the amount of fish on the belt 1 is made uniform, it is less likely that small fish will be placed on top of large fish and sent out without being sorted.

The shape of the belt can be circular, oval, square, or band-shaped in cross section, and as shown in FIG. 14, a belt with protrusions 26 formed on its surface, or As shown in FIG. 17, a hollow cylinder made of flexible rubber or synthetic resin can be used.

By the way, the fish placed on the belt 1 and passing through the sorting gap pass between the belts below and fall, but in order for the fish to smoothly pass through the belt 1 below, the 15th
As shown in the figure, the sorting part of the belt 1 is placed on a guide 27, and both sides of this guide 27 are bent downward to form a skirt 28, and the lower belt 1 is placed inside this skirt 28.
All you have to do is pass it through.

The width of the skirt 28 is narrower than the width of the belt 1.
passes vertically as shown in FIG.

In this way, when the width of the skirt 28 is narrow, the fish passing between the upper belts 1 can fall smoothly without being caught by the guide 27. A groove 29 is formed on the upper surface of the guide 27 so that the belt 1 slides thereon without lateral deviation. By the way, when the belt 1 is in the form of a band and is passed vertically through the guide 27, it can be erected more smoothly by twisting the lower belt half a turn, as shown in FIG.

When the belt is cylindrical and flexible, if the outer width of the two guides is narrower than the outer diameter of the belt 1, as shown in FIG.
pass smoothly between.

The lower belt 1b passes between the guides 27 in a state in which it is crushed into a somewhat thinner state. The fish body sorting device of the present invention has a unique configuration in which adjacent belts move in the same direction but at different moving speeds, so the fish bodies fed onto the belts are separated due to the speed difference between the adjacent belts. , while being moved, receives an alignment force parallel to the direction of movement of the belt, and is aligned parallel to the belt by this longitudinal force. For this reason, as the fish are fed to one side of the belt without any direction, as they are moved by the belt, they are aligned in the direction that is easiest to pass between the belts and is ideal for sorting. They fall and are sorted by size. Therefore, it is possible to reduce the possibility that small fish bodies that can pass between the belts when aligned are sent out without falling between the belts while remaining in a posture that crosses the belts, regardless of the fish supply state, that is, the fish supply can be reduced. )
This simplifies the process and provides the advantage of being able to accurately sort fish into sizes. Furthermore, since it is a mechanism in which multiple belts are stretched in the direction of fish movement, the structure can be made simple by simply arranging multiple pulleys in parallel, and the fish are sorted by falling between the parallel belts. , the belt width can be made considerably narrower, and the selected gap relative to the belt width can be widened, thereby significantly increasing the throughput per installation area.
Compared to conventional roll drives, the driving means is much simpler and the belt itself is lighter, so the overall weight is significantly reduced.Furthermore, since sorting is carried out while being transported by the belt, it can be installed on an uphill slope if necessary. By doing so, it is possible to sort the fish while lifting it, which is convenient for connection to the next process, and the position at which the fish is supplied to the device can be lowered.
Convenient for supplying fish.

[Brief explanation of the drawing]

1 to 3 are a schematic vertical cross-sectional view, a cross-sectional view, and a plan view of a fish body sorting device according to an embodiment of the present invention, and FIG. 4 is a plan view of a fish body sorting device showing another embodiment. 5 and 6 are side views of a fish sorting device showing still another embodiment, FIG. 7 is a cross-sectional view of the fish sorting device showing still another embodiment, and FIGS. 8 and 9 are side views of a fish sorting device showing still another embodiment. , a top view and a side view showing the alignment rotor, FIGS. 10 and 11 are a top view and a side view of a fish sorting device with different belt speeds, and FIGS. 12 and 13 show a fixed amount of fish on the belt. 14 to 16 are side views, cross-sectional views, and perspective views of the belt-like fish sorting device; FIG. 17 is a cross-sectional view showing another embodiment of the belt. . 1...Belt, 2...Pool l83...
... Fish sorting section, 4 ... Drive section, 5 ...
・Idle axis, 6...Fish sorting gap, 7...
...Chain wheel, 8...Chain, 9.
... Deceleration motor, 10 ... Sorting container, 11
, 12, 13, 14, 15... sorting unit, 16
, 17... Step pulley, 18... Hanging pin, 19... Rotating shaft, 20... Aligning rotor, 21... Hopper, 22... ... Belt conveyor, 23 ... Metering passage, 24 ... Hopper, 25 ... Control plate, 26 ... Convexity, 27 ...
...Guide, 28...Skirt, 29...
... Groove, 30... Rubel control device.

Claims (1)

[Claims] 1. A device comprising a plurality of endless belts, a pulley to which the belt is applied and drives the belt, and a driving means to drive the pulley, and the belt can move a fish body placed thereon. Sorting sections for sorting fish by size are stretched horizontally or almost horizontally to create a gap between parallel or almost parallel belts for sorting fish, and the belts are driven by a driving means in the longitudinal direction. In a fish sorting device that is configured to sort fish supplied to the sorting section by size by moving the belts, adjacent belts move in the same direction. A fish sorting device characterized in that the speeds of the fish bodies are different, and the fish bodies are transported and directed in the transport direction based on the speed difference between adjacent belts. 2. The fish body sorting device according to claim 1, wherein sorting units having parallel belts but with different belt intervals are connected in series in the fish transport direction. 3. The fish sorting device according to claim 1, wherein the belt has a cross section that is circular, oval, or V-shaped. 4. The fish body sorting device according to claim 1, wherein the belt is belt-shaped. 5. The fish body sorting device according to claim 1, wherein the belt has a protrusion at least on the side on which the fish body is placed.