JPH0731424A - Wind selector for boiled and dried larval fish - Google Patents

Abstract

PURPOSE:To provide an apparatus for selecting boiled and dried larval fish low in the decree of dryness in the sun and high in water content in wind selection thereof. CONSTITUTION:Problems can be solued by equipping a belt conveyor with a flipping device for flipping up fish conveyed on a conveyor belt so as to be selected and a blower for sending air to the flipped fish to be selected. Specifically, a take-out unit for taking out boiled and dried larval fish is set on the top side of conveyance of the belt conveyor and a take-out unit for taking out remnants is set on the base side of conveyance. The flipping device is composed of a shaking unit for vertically shaking the conveyor belt and a blower for sending air through air holes of the conveyor belt toward the upper direction. Further, the blower is opened toward the downstream side of the conveyor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing dried shirasu, and more particularly to an apparatus for selecting boiled shirasu.

[0002]

2. Description of the Related Art Generally, a so-called "shirasu-dried" manufacturing method in which small fish caught in the sea is boiled, dried in the sun and dried is still used. Since this manufacturing method is simple, "small shrimp, small crab, or needle-shaped plankton" mixed in the raw material "shirasu" is mixed in the product, which reduces the evaluation in the market. It has been practiced to remove these contaminants by the wind separation method.
In other words, in the conventional wind selection method, small fish that have been taken out of the kettle and dried are dropped from above, and air is blown from the side to sort them, or air is blown onto the conveyor to make them lighter in size. Removes shrimps and small crabs.

On the other hand, due to the diversification of tastes, the degree of drying has become more favored from the age-completely dried products which emphasize preservation, to the semi-dried products which emphasize taste, and in recent years, they have been dried too much. Even those that do not exist are becoming more and more popular, and the ratio is increasing due to improvements in storage and transportation technologies.

[0004]

However, as in the prior art, in the sorting method for selecting the above-mentioned small shrimp and small crab, which are light in weight for their size, the degree of drying just after raising from the pot is low. The small shrimp and small crab are also heavy because they contain a lot of water, so there is a problem that the accuracy of the selection decreases unless the wind hitting the individual fish to be selected is improved.

[0005]

[Means for Solving the Problem] This problem is to flip up a fish to be sorted placed on a conveyor belt and conveyed to a belt conveyor, and to blow up the fish to be pushed up. It is solved by attaching a sorting nozzle. Specifically, a take-out device for drying the shirasu on the destination side of the belt conveyor and a take-out device for the residue on the source side are arranged, and the flip-up means vibrates the conveyor belt up and down. And a flip-up nozzle that blows upward through a ventilation hole of the conveyor belt, and further, the selection nozzle is opened toward the upstream side (lower side) of the conveyor.

[0006]

When the fish to be sorted, which has been lifted from the kettle, is placed on the conveyor belt of the belt conveyor, the fish to be sorted are lifted from the conveyor belt by the vertical movement of the conveyor belt or the blowing of air. Therefore, when a strong wind is sent from the side, armor such as shrimp and crab with large shells and broken pieces are separated by the shirasu as a product.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. In FIG. 1, reference numeral 10 is a shirasu air-sorting device. The wind sorting device 10 includes a sorting carriage 20 supported by caster wheels, and a belt conveyor 30 supported by the sorting carriage 20. As shown in FIG. 2, the sorting vehicle 20 is provided with side plates 22 and 22 on both sides of a bottom plate 21, and an air passage D is formed therein by supporting an upper plate 23 and a lower plate 24. The belt conveyor 30 is attached to the air passage D with a slight inclination. 12
Is a supply conveyor for supplying the fish F to be sorted to the belt conveyor 30, which is placed directly from a not-shown boiler pot or placed after being dried in the sun for about half a day and conveyed.

The belt conveyor 30 is constructed by winding a conveyor belt 34 between a driving roller 32 and a driven roller 33 which are supported by one end and the other end in the longitudinal direction of a frame 31 having an upward U-shape. The support shaft 35 and the vibrator 3 provided at a distance from the selection cart 20 are provided.
It is supported by 6 and 6 so as to be tiltable. The vibrator 36 vibrates the frame 31 in the vertical direction. Therefore, the belt conveyor 30 is provided to rotate up and down in a short cycle with the support shaft 35 as an axis so that the fish F to be sorted float above the conveyor belt 34. The drive roller 32 is connected to the electric motor 37 via a belt 38 and rotates at a constant speed. Further, the conveyor belt 34 is made of a polyester net or a stainless plate having a large number of small holes, which are selected and changed according to the size of the fish F to be sorted.

As shown in FIG. 1, the air passage D has a substantially triangular shape whose cross-sectional area increases toward the upstream side, that is, the lower side of the belt conveyor 30, and the narrow side is downward. A selection nozzle 16 is provided for ejecting air toward the target fish F to separate and remove small fish, and a lower surface of the conveyor belt 34 is also provided with a flip-up nozzle 17 directed upward. The sorting nozzle 16 and the flip-up nozzle 17 are connected to a blower through an air duct (not shown), and the air duct is provided with an electric heater and other means for heating and drying the air. ing.

Thus, the air blown up from the flip-up nozzle 17 acts on the lower surface of the fish F to be sorted through the conveyor belt 34, and the fact that the belt conveyor 30 rolls from upward to downward is utilized to convey the fish F to be sorted onto the conveyor belt. Bounce from the surface of 34 and lift. Then, the fish F to be sorted that has been flipped up is blown away toward the downstream side of the conveyor belt 34 by the air blown from the sorting nozzle 16.
Again, it falls onto the conveyor belt 34. Since the compressed air blown out from the selection nozzle 16 is expanded in the air passage D ahead of the blowing direction, the compressed air expands accordingly and the speed decreases rapidly so that the fish F to be selected does not fly too far. ing. The weight of the shirasu passing through the flip-up nozzle 17 is set by increasing or decreasing the air volume of the air blown out from the selection nozzle 16 and the electric power input to the vibrator 36. .

Conveying nozzles 18 and 19 and an electrostatic device 40 are provided in the vicinity of the driven roller XX of the belt conveyor 30. The conveying nozzles 18 and 19 are the conveyor belt 3
4 is opened obliquely upward from the lower surface. Therefore,
Of the fish F to be sorted, which is blown away by the action of the sorting nozzle 16, air is blown from below toward the fish F to be sorted which has dropped from the supply conveyor 12 onto the conveyor belt 34.
Those that have been blown away to a distance, that is, small fish, are successively blown toward the stopper plate 13 and dropped into the small fish receiving box 14.

The electrostatic device 40 is an electric dust collector with the electrodes diverted. Specifically, the electrostatic device 40 is provided with a positive electrode 41 and a negative electrode 42, each of which is composed of 10 stainless steel wires, which sandwich a conveyor belt. It is configured so that a high voltage of about 50,000 volts can be applied. This allows the conveyor belt 3
By negatively charging the fish F to be sorted on 4 and causing the positive electrode 41 to suck the same, in cooperation with the vibration of the belt conveyor 30 by the vibrator 36 and the action of the flip-up nozzle 18,
Float from above the conveyor belt 34. Reference numeral 43 denotes a high-voltage power supply for the electrostatic device 40, which is connected to the wire-shaped positive electrode 41 in an insulated state by the two insulators 44, 44. Reference numeral 45 is a drying nozzle for injecting air toward the insulator 44.

Reference numeral 13 denotes a stopper plate provided near the starting end of the belt conveyor 30. Below the stopper plate 13, a small fish receiving box 14 is placed, and a small shrimp, small crab, plankton, or a shirasu with a bad shape. And the like are excluded from the fish F to be sorted and are input. 15 is a belt conveyor 30
It is a shirasu receiving box for receiving a shirasu product placed below the end of the product.

In this way, the fish F to be sorted, which have been flipped up from the surface of the conveyor belt 34, are blown off toward the downstream side of the conveyor belt 34 by the air blown out from the sorting nozzle 16, and are thin and wide in the width direction of the belt 34. At the same time as being dispersed, those that have been blown away to the far side, that is, light weight small fish are blown toward the stopper plate 13 and dropped into the small fish receiving box 14.

FIG. 3 is a flow chart showing the process from landing to shipping of shirasu. That is, the shirasu landed from the boat is put in a kettle and boiled. Boiled sardines are fried in a kettle and classified by market. For example, Kanto Market A
And Kansai Market B. Those for the Kanto market A are sent to the sorting process as it is, and those for the Kansai market B are dried in the sun for about half a day and then sent to the sorting process to maintain the prescribed quality and the residue. Separated into
The former is packaged and shipped to the food market, and the latter is boxed and shipped to the feed market.

Next, the fish F to be sorted in the above-mentioned embodiment
The selection process will be described. First, when the wind selecting device 10 starts to operate, it is vibrated by the vibrating device 36, and the belt conveyor 30 vibrates up and down by a small angle about the support shaft 35 as an axis. This period is about 50 or 60 hertz, which is the same as the frequency of the power supply. Next, the fish to be sorted F that has been fried or dried for about half a day is continuously supplied onto the conveyor belt 34 by the supply conveyor 12. The supplied fish F to be sorted is biased toward the center on the conveyor belt 34, but is dispersed left and right by the vibration of the conveyor 30 and the air from the transfer nozzles 18 and 19 blown up from below, so that the fish to be sorted on the conveyor 30. It is transported diagonally upward.

When the fish F to be sorted reaches just above the splashing nozzle 17, the air blown up from the nozzle 17 and the conveyor 3
By the action of vertical movement by 0, it is flipped up from the surface of the conveyor belt 34 and floats by about 5 to 15 cm. Air is blown there from the sorting nozzle 16, the fish F to be sorted are blown toward the upstream side (lower side) of the conveyor 30, relatively light ones are far away, and heavy ones are near, and again the conveyor belt. It falls to 34. While this process is repeated several times, those that have fallen nearby pass over the sorting nozzle 16 and fall into the sill receiving box 15.
Note that small shrimps and small crabs containing water drop relatively close at first, but when they are blown off by the selection nozzle 16,
It separates the water contained inside, so that it will be blown away further.

Among the fish F to be sorted, those that have been thrown away far away are those that partly go up again to the position of the flip-up nozzle 17, and the rest are conveying nozzles 18, 19 that open downward.
Is blown off by the blower, hits the stopper plate 13 and drops downward, and drops into the small fish receiving box 14.

In the above description, the scope of the present invention is not limited to the type of small fish described as "shirasu", but refers to the whole of small fish used as a raw material for "niboshi". It is a thing.

[0020]

As described above, the present invention is provided with the flip-up means for temporarily lifting the fish F to be sorted on the conveyor belt on the belt conveyor for transferring the fish F to be sorted. The fish F to be sorted containing a large amount of water can be easily lifted from the conveyor belt.
Therefore, there is an effect that the wind on the fish F to be sorted is improved and the sorting can be performed efficiently.

[Brief description of drawings]

FIG. 1 is a side view of a wind sorting device that is an embodiment of the present invention.

FIG. 2 is a II-II sectional view thereof.

FIG. 3 is a flow chart showing a manufacturing process of dried shirasu.

[Explanation of symbols]

 10 Wind Selector 13 Stopper Plate 14 Small Fish Box 15 Shirasu Box 16 Sorting Nozzle 17 Bounce Nozzle 18, 19 Conveying Nozzle 20 Sorting Cart 30 Belt Conveyor 34 Conveyor Belt 35 Spindle 36 Vibrator 40 Electrostatic Device F Sorting fish

Claims (5)

[Claims] 1. A belt conveyer is provided with flip-up means for flipping upward the fish to be sorted placed on the conveyor belt and conveyed, and a selection nozzle for blowing air toward the fish to be sorted. Shirasu's air-conditioning device. 2. The shirasu drying apparatus according to claim 1, wherein the flip-up means is a vibrator for vertically vibrating the conveyor belt. 3. The shirasu drying machine according to claim 1, wherein the flip-up means includes a vibrator for vertically vibrating the conveyor belt and a flip-up nozzle for blowing air upward through the ventilation holes of the conveyor belt. Wind selector. 4. The belt conveyor according to claim 1, wherein the belt conveyor is provided with an inclination, the starting end thereof is arranged on the lower side, and the flip-up means vibrates the conveyor belt up and down, and a ventilation hole of the conveyor belt. And a wind-up device for blowing air upward through the sorting nozzle, and the sorting nozzle is opened toward the upstream side (lower side) of the conveyor. 5. A take-out device for hanging clothes on the moving destination side of the belt conveyor, and a take-out device for leaving residue on the moving source side, and the flip-up means moves the conveyor belt up and down. It consists of a shaker that vibrates in a vertical direction and a flip-up nozzle that blows upward through a ventilation hole of a conveyor belt. Furthermore, the selection nozzle is opened toward the upstream side (lower side) of the conveyor. Air-drying device for drying.