JP4713665B2 - Juvenile shellfish dispensing method and juvenile shellfish dispensing device - Google Patents

Description

  The present invention relates to a method and apparatus for weighing juvenile shellfish. More specifically, the present invention relates to a method and apparatus for accurately weighing a predetermined amount of juvenile shellfish and continuously storing the weighed juvenile shellfish in a breeding container.

  In the scallop aquaculture, the seedling, intermediate breeding, and main farming operations are performed before shipment. Seedling is an operation for collecting juveniles, and a seedling device for seedling is drooped into the sea in aquaculture facility from May to June. The seedling device used varies depending on the region. For example, in scallop farming in the Sea of Okhotsk, Hokkaido, netronnets with different meshes are used. Larvae that have grown to several millimeters in a seedling device are collected in July-August. The collected juveniles are housed in a net-shaped rearing cage and drooped into the sea. A pearl net cocoon (called a so-called cushion cushion) or a round cocoon is usually used as the growing cocoon. Usually, a plurality of cultivating rods are used by connecting them in succession. This work is performed several times by September-October, and this is called intermediate training. The middle-grown juveniles will be cultivated in March and June of the following year. This aquaculture is performed by making a hole in the ear of the shell, fixing it to the rope with a string that passes through the hole, and hanging the rope together in the aquaculture facility. This is called an ear-pick method. This aquaculture may be performed using round culms. Grown shellfish are shipped from December to April.

  The larvae collected from the seedling device are housed in the culm and suspended in the sea during the intermediate breeding (this work is called "dispersion work"), but one cultivating cocoon depends on the growth of the larvae. Since it is necessary to change the number of juvenile shells accommodated in the container, the dispersion work is usually performed two to three times throughout the intermediate breeding period. For example, the number of juvenile shells accommodated in the cultivating jar is initially about 80 to 100 per cultivated cocoon, and finally about 20 to 30 per cultivated cocoon. When this aquaculture is performed using a round culm, an operation of accommodating about 10 larvae that have undergone intermediate cultivating per cultivated culm is performed.

  Conventionally, the operation of housing the juvenile shellfish in the breeding tub has been carried out manually by a farmer. Usually, this operation is performed as follows. First, larvae collected from a seedling container are accommodated in a container such as a sea bream containing seawater. Next, the measuring container scoops up the juvenile shellfish from a container such as a sea bream so that there are, for example, 80 to 100 juvenile shellfish. The measuring container is provided with a hole large enough to prevent the juvenile shells from passing through. When the juvenile is scooped, seawater is discharged from the holes provided in the measuring container. Finally, juveniles scooped up by one measuring container are put into one growing trough. Repeat this process for all juveniles. The number of juveniles that need to be put into the breeding troughs by this work is extremely large. For example, in the case of aquaculture on the coast of the Sea of Okhotsk, it may be 10 million or more in one season. Therefore, for example, in the case where 10 million larvae harvested are distributed to 100 per cultivated cocoon, the above-mentioned manual operation is repeated about 100,000 times by simple calculation.

  Thus, since the operation | work which puts a large amount of juvenile shellfish into a raising rod manually is very complicated as follows, the subject that the efficiency of the operation | work which distributes juvenile shellfish falls exists. When young oysters are collected from the seedling device and are first accommodated in the growth cage, the shell length is 10 mm or less. After that, the shell length of the juvenile is about 25 mm even when the intermediate growth is completed. According to the investigation by the present inventors, the size and weight of the larvae are, for example, larvae with a shell length of about 9 mm, a thickness of about 1.8 mm, a weight of about 0.1 g, and a shell length of 15 mm. The shell is about 3.2 mm thick and weighs about 0.3 g. In this way, the small and extremely light nymphs are easily attached to every place due to the influence of the surface tension of water and the tentacles of the nymphs, so that handling is troublesome. For example, when weighing juveniles in a container using a measuring container, many juveniles are placed in the operator's hand or measuring container when the juvenile contained in a container such as tarai is scooped with a measuring container. Since it adheres, it must be washed away with water each time. In addition, juvenile lambs that have once adhered are often not easily peeled off even if water is flowed after the attachment. In addition, when feeding juveniles from the weighing container to the growth jar, the larvae may adhere to the inside of the measurement container and cannot be put into the growth jar. May not be possible.

  The following techniques have been proposed as conventional techniques for reducing the complexity of such manual dispensing work. Patent Document 1 and Patent Document 2 disclose a larva distribution hopper device and a larva distributor for the purpose of sequentially distributing a predetermined number of larvae. In the hopper device for distributing larvae of Patent Document 1, the larvae accommodated together with the seawater filling the hopper body are taken into the larvae measuring cups that are detachably attached to the conveyor belt, and guided from the upper end of the conveyor belt. A predetermined amount of larvae is accommodated in the aquaculture cage by dropping the larvae through the. The juvenile shell dispenser of Patent Document 2 includes a hopper in which juveniles are accommodated together with seawater, and a casing partially inserted into the hopper, and the inside of the casing is configured by a plurality of buckets whose capacity can be adjusted. . The inside of the casing is filled with seawater. In this apparatus, the hopper and the bucket in the casing communicate with each other through the opening, and the juvenile is taken into the bucket from the opening together with the seawater. The bucket in which the juveniles are accommodated advances in the circumferential direction in the casing and is discharged from a chute connection port provided in the casing. When the juvenile shells are discharged from the chute connection port, the seawater filled in the casing flows out from the chute connection port and acts to flush away the juvenile shellfish.

JP-A-7-31320 Japanese Patent Laid-Open No. 8-12091

These conventional techniques have the following problems.
In the technique of Patent Document 1, juveniles taken into the measuring cup are thrown into the chute by natural fall from above. However, as described above, small and extremely light larvae easily adhere to the measuring cup due to the effect of surface tension and the action of tentacles. Since it does not peel off, there is a possibility that a part of the weighed juvenile remains in the measuring cup and does not fall on the chute. FIG. 1 of Patent Document 1 describes the injection of seawater directed from the shower into the seat. This injection is caused by clogging inside the chute caused by the slimming of the larvae that fall from the measuring cup into the chute. It is intended to prevent contamination and the like, and is not intended to discharge juveniles in the measuring cup from the measuring cup.

  In the present technology, the juvenile is stored in the hopper together with seawater, taken into the measuring cup in seawater, and then measured to a predetermined amount by scraping means that contacts the opening edge of the measuring cup. Yes. However, when the juvenile is taken in by the measuring cup moving in the seawater, the juvenile may escape from the upper part of the cup together with the seawater. In addition, in the present technology, the juvenile is scooped with a measuring cup for measuring the juvenile, and the juvenile is put as it is from the chute unit into the growing bowl. Therefore, even when the amount of juveniles scooped up by the measuring cup is less than the predetermined amount, the amount is put into the culture trough without being corrected in the subsequent process. Therefore, the amount of the juvenile shellfish thrown into the cultured trough is not stable, and if it is attempted to manually correct the amount, the work efficiency may be lowered. Although larvae are contained in seawater in the hopper, the larvae contained in the stationary liquid in this way move for oxygen, and the larvae may be engaged at that time. There is sex. When the larvae engage with each other, a plurality of larvae gather together in a lump so that accurate measurement cannot be performed, and damage to the larvae due to the engagement may occur.

  In the technique of Patent Document 2, since the juvenile is taken into a bucket that rotates together with seawater from an opening that communicates the hopper and the casing, there is a possibility that the amount does not become constant for each bucket. Nevertheless, the larvae are transported up to the chute with the amount initially taken into the bucket and put into the growth cage, and there is no mechanism for correcting the amount of the larvae taken into the bucket later. Therefore, as in the technique of Patent Document 1, the amount of juvenile shells put into the cultured trough is not stable, and work efficiency may be reduced. Moreover, there is a possibility that the juvenile shellfish may be sandwiched and damaged between the opening of the hopper for taking the juvenile shellfish into the bucket and the first wall of the first partition member of the bucket rotating in the casing.

  An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a method and an apparatus that enable automatic and accurate weighing and distribution of juvenile shellfish to a growing trough.

  The above objective is accomplished by a juvenile shellfish dispensing method and apparatus according to the present invention. That is, the juvenile shellfish dispensing and distribution method and apparatus according to the present invention separates a container for taking a certain amount of juvenile shellfish from the deposited juvenile and transporting it, and a container for measuring the transported juvenile shellfish. By measuring the juvenile shellfish through two steps, more accurate measurement is possible. However, since it is necessary to eliminate the difficulty in handling the larvae as described above, measuring through a plurality of steps may complicate the work. Therefore, in the present invention, it is a big problem in automatic weighing and distribution of juvenile shellfish, the handling complexity due to the juvenile sticking to the container, until the juvenile shellfish are supplied and weighed and distributed to the breeding container In cases where it was necessary to move larvae in this process, it was overcome by intervening the flow of water. That is, the method and apparatus according to the present invention simultaneously solves the complicated handling of juvenile shellfish and the difficulty of accurate weighing.

  According to the first aspect of the present invention, the present invention continuously measures a predetermined amount of larvae from the larvae supplied from the larvae supply unit, and uses the measured predetermined amount of larvae as a breeding container. A juvenile shellfish dispensing method for sequential accommodation is provided. The method includes a depositing step of depositing juveniles by moving the juveniles together with water from the juvenile supply part to the juvenile depositing part and separating the water and the juveniles in the juvenile depositing part; A distribution step of distributing juveniles deposited on the plurality of first juvenile groups, and moving the first juvenile groups together with water or seawater, each comprising a plurality of second juveniles each having a predetermined amount It includes a measuring step for distributing to shellfish groups, and a discharging step for moving a plurality of second juvenile shellfish groups together with water or seawater and discharging them to a plurality of breeding containers.

  Preferably, the method further includes a first larva group transporting step of transporting the plurality of distributed first larvae groups to a position for distribution to the plurality of second larvae groups in the weighing step. . It is preferable that this 1st larva group conveyance step includes the step which isolate | separates the some distributed 1st larva group and water. In addition, it is preferable that the method further includes a second larva group transporting step of transporting the distributed second larvae group to a position for discharging to the plurality of breeding containers in the discharge step. . The second larva group transporting step preferably includes a step of separating the plurality of distributed second larvae groups and water.

  In this method, it is preferable that the amount of each of the plurality of first larvae groups distributed in the distributing step is smaller than a predetermined amount to be weighed. In this method, it is preferable to further include the step of circulating a part of the juveniles deposited in the juvenile deposits that were not distributed as the plurality of second juvenile groups to the juvenile deposits together with water or seawater.

  In this method, it is preferable that the plurality of second larvae groups are discharged intermittently from the measuring container to the plurality of breeding containers in the discharging step. When the discharge to the plurality of growth containers is stopped, it is preferable that one or both of the distribution in the distribution step and the distribution in the weighing step is stopped.

  According to the second aspect of the present invention, the present invention continuously measures a predetermined amount of larvae from the larvae supplied from the larvae supply unit, and uses the measured predetermined amount of larvae as a breeding container. The present invention provides a juvenile shellfish dispensing device for sequential accommodation. The apparatus includes a housing having a first opening for taking in juveniles together with water or seawater and a second opening for taking out measured juveniles from the inside, and water or seawater. It has one or more drainage ports for discharging, and it is taken into the inside of the housing together with water or seawater from the first opening by being positioned below the first opening in the inside of the housing A plurality of larvae are collected by accommodating at least a part of the larvae deposited in the larvae deposit part, each having one or more drainage ports, A plurality of transport containers for distributing and transporting to the first larvae group, and when the plurality of first larvae groups are discharged from the plurality of transport containers, water or seawater is contained in the plurality of transport containers. A first water inlet for supply, each having one or more drain ports, A plurality of second larvae groups each comprising a predetermined amount of a plurality of first larvae groups by accommodating at least a part of the plurality of first larvae groups discharged together with water or seawater from the transport container A plurality of weighing containers for distributing to the outside, a weighing container conveying device for conveying the plurality of weighing containers to the outside of the housing through the second opening, and a plurality of second larvae from the plurality of weighing containers When the water is discharged, a plurality of second water inlets for supplying water or seawater into a plurality of measuring containers and a plurality of second juvenile groups discharged together with water from the plurality of measuring containers And a guide device for guiding the container.

  In this apparatus, it is preferable that the housing has a cylindrical shape that can rotate around the horizontal axis. In this case, the plurality of transport containers may be fixed or integrated with the inner wall surface of the housing and configured to move on the circumference of a circle centered on the horizontal axis by rotation of the housing. preferable. The plurality of first larvae groups accommodated in the plurality of transport containers in the juvenile stacking portion are discharged from the plurality of transport containers toward the plurality of measuring containers when reaching the upper part of the circumference.

  In this device, each of the plurality of weighing containers and the weighing container transport device are connected via a connecting means having one end fixed to each of the plurality of measuring containers and the other end fixed to the weighing container transport device. Preferably it is.

  The apparatus further discharges water or seawater for returning juveniles that have not been accommodated in the plurality of weighing containers out of the plurality of first juvenile groups discharged from the plurality of transport containers to the juvenile stacking unit 1 It is preferable to further include one or a plurality of third water inlets.

  According to the present invention, after the larvae are introduced from the supply container into the apparatus, the introduced larvae are distributed, weighed, and put into the growth container. It is provided as another configuration. By comprising in this way, the quantity of the young shellfish which should be measured is always accommodated in a measurement container, and exact measurement is attained. Moreover, in one embodiment, the quantity of the young shellfish accommodated in one conveyance container was made smaller than the quantity of the young shellfish accommodated in one measurement container, and it accommodated in some of several conveyance containers. By filling one weighing container with juvenile shells, it is possible to reduce the number of juvenile shells discharged from the transport container that are not accommodated in the weighing container, enabling more efficient measurement of juvenile shellfish. It becomes.

  Further, according to the present invention, the larvae are supplied from the supply container to the larvae depositing portion inside the casing of the apparatus together with the flow of water. The juvenile shells stored in the transport container at the juvenile shell depositing section and transported to the input section to the measuring container are stored from the transport container into the measuring container together with the flow of water. Furthermore, the juvenile shellfish accommodated in the measuring container and transported to the input part to the guiding device are discharged from the measuring container to the growing container through the guiding device together with the flow of water. Thus, at least when a juvenile shellfish is transferred from one container to another, or at least when the position of the juvenile shellfish is moved, there is always a flow of water with the movement of the juvenile shellfish. Therefore, according to the method and apparatus of the present invention, juvenile shellfish can be prevented from adhering to the wall of the container, so that the accuracy of measurement is improved and the efficiency of work is increased.

  According to the present invention, the juveniles deposited in the juvenile depositing section are separated from the water by flowing out from one or more drains provided in the juvenile depositing section when the water that has flowed in simultaneously with the supply of the juvenile shellfish. To be separated. Moreover, when it conveys with a conveyance container, water flows out from the 1 or several drain outlet provided in the conveyance container. Furthermore, when the juvenile shellfish is introduced into the measuring container, the water that has flown at the same time as the juvenile shellfish flows out from one or more drains provided in the metering container. Thus, since the water is discharged from the container by providing the water drain port in each of the housing, the transport container, and the measuring container, and the entire inner volume of the container can be used for accommodating the larvae, one transport container As a result, the amount of juveniles to be transported can be increased, the work efficiency is improved, and accurate weighing is possible.

  Further, according to the present invention, among the larvae introduced into the measuring container from the transport container, the larvae that are not accommodated in the measuring container return to the larvae depositing portion of the housing together with the flow of water, and again by the transport container. It is transported to the input part to the weighing container. By adopting such a configuration, all of the juvenile shellfish supplied from the juvenile shellfish supply container are always weighed in a short time and are put into the breeding container. Therefore, the possibility of adversely affecting the growth of juveniles is small.

It is an external view of the juvenile shellfish dispensing and weighing device according to one embodiment of the present invention. It is a figure showing the internal structure of the juvenile shell distribution metering device concerning one embodiment of the present invention. It is a figure showing the conveyance container of the juvenile shell distribution metering device concerning one embodiment of the present invention. It is a figure showing the measurement container and endless conveyor of the juvenile shell distribution measuring device concerning one embodiment of the present invention. It is a figure which shows the connection part of the measurement container and endless conveyor of the juvenile shell distribution measuring device concerning one embodiment of the present invention.

  Hereinafter, a juvenile shellfish dispensing device according to one embodiment of the present invention will be described in detail based on the drawings. FIG. 1 is an external view of a juvenile shellfish dispensing device 1 according to one embodiment of the present invention, and FIG. 2 is a view showing the internal configuration of the device 1. The juvenile shell dispensing unit 1 includes a juvenile feeding portion 20 into which the juvenile shell H1 is introduced from the upper part, a casing 30 including the deposit part 35 of the juvenile shell H1 at the lower part, and the juvenile shells deposited on the juvenile deposit part 35. A plurality of transport containers 40 each housing and transporting a portion of the larvae H2 of H1, and at least a portion of the larvae H3 of the larvae H2 transported by each of the plurality of transport containers 40 Used in various places of the apparatus 1, a plurality of weighing containers 50 to be accommodated, an endless conveyor 60 that sequentially conveys the plurality of weighing containers 50, a guide device 65 that guides the juvenile shellfish H4 falling from the weighing container 50 to the growing container 70 A water injection unit 80 for supplying an appropriate liquid such as water or seawater (hereinafter referred to as “water”), and a gantry 90 on which these devices are placed.

  The case 30 is used for carrying out the first opening 31 for taking in the juvenile H1 together with water from the juvenile feeding portion 20 and the measuring container 50 containing the measured juvenile out of the case 30. Second opening 32. The housing 30 is supported on the gantry 90 by a support (for example, a rotating roller 97), and is connected to a motor 100 provided outside the housing 30 via a driving member such as a chain. It is configured to be rotatable about the horizontal axis 30A by a driving force of. The operation of the apparatus 1 including the rotation of the casing 30, on / off of water injection, etc., and driving of the endless conveyor 60 is performed by various switches of the control box 95. As shown in FIG. 1B, the casing 30 has a diameter of a circle having a cross section orthogonal to the horizontal axis 30 </ b> A gradually from the end having the first opening 31 toward the center of the casing 30. It has a cylindrical shape that becomes large at the center of the housing 30 and gradually becomes smaller toward the end having the second opening 32. By making the rotatable casing 30 into such a shape, the larvae introduced from the first opening 31 and the larvae that have not been able to enter the measuring container 50 as described later are rotated by the rotation of the casing 30. Accordingly, it moves downward along with the inclined inner wall surface of the housing 30 together with water, and finally it always deposits in the lower part near the central part where the diameter is maximum. This position is the juvenile shell deposit part 35.

  A first water inlet 82 connected to the header 81 of the water injection unit 80 by one of a plurality of hoses 89 is provided at the lower part of the young shell inlet 20 into which the baby shell H1 is introduced. From the water injection port 82, the water sent from the header 81 is supplied to the inside of the juvenile shell introduction unit 20. The supplied water passes from the juvenile feeding portion 20 through the first opening 31 and along the inclined inner wall surface of the housing 30, the juvenile depositing portion 35 located at a place lower than the first opening 31. To reach. By this flow of water, the larvae H1 introduced into the larvae introduction part 20 move to the larvae accumulation part 35 without adhering to the larvae introduction part 20 and the inner wall surface of the housing 30.

  As shown in FIG. 2, the central portion of the casing 30, that is, the portion where the diameter of the circle of the cross section orthogonal to the horizontal axis 30 </ b> A is maximum is recessed from the inner wall of the casing 30 over the entire circumference. A recess 36 is formed. FIG. 3 shows an enlarged view of the recess 36. When viewed from the outside of the housing 30, the portion where the concave portion 36 is located protrudes outward from the outer wall as shown in FIG. Providing the recesses 36 in the housing 30 makes it easier for young shellfish to accumulate at a certain position in the housing 30. The shape of the recess 36 is a U-shaped cross section as shown in FIG. 3 in the present embodiment, but is not limited to this.

  As shown in FIG. 3, the surface 36 ′ of the recess 36 is provided with one or a plurality of drain ports 37 that communicate with the outside of the housing 30. The drain port 37 provided in the concave portion 36 constitutes a discharge path for discharging water that has moved together with the juvenile shellfish H1 to the juvenile shell depositing portion 35 of the housing 30 to the outside of the housing 30, and the concave portion 36 is composed of the juvenile shellfish. A part of the deposition unit 35 is formed. By comprising in this way, a young shellfish and the water can be isolate | separated in the young shell deposit part 35, and only a young shell can be deposited efficiently. A cover 75 having a width wider than at least the width of the recess 36 is preferably provided outside the outer surface of the recess 36. The cover 75 has an effect of preventing water discharged out of the housing 30 from the drain port 37 of the recess 36 from splashing around.

  As shown in FIG. 3, a plurality of cup-shaped transport containers 40 for accommodating and sequentially transporting at least a part of the larvae H <b> 2 of the larvae H <b> 1 accumulated in the larvae depositing part 35 in the recess 36. Are provided at regular intervals. By providing the transport container 40 in the recess 36, the larvae are deposited in the recess 36 in the larvae depositing part 35, so that the transport container 40 passing through the larvae depositing part 35 can easily accommodate the larvae, As a result, it is possible to efficiently transport the larvae. The number of transport containers 40 is not particularly limited. The transport container 40 is provided with one or a plurality of drain ports 43, and the water that has entered the transport container 40 can be discharged from the drain ports 43. Therefore, it is possible to increase the amount of the juvenile shells transported per one transport container 40. The drain port 43 is provided only in a part of the transport container 40 in FIG. 3, but may be provided on the other surface of the transport container. The volume of the transport container 40 may be set so that the amount of the juvenile shells H2 accommodated in each of the transport containers 40 is smaller than the amount of the juvenile shellfish H3 accommodated in each of the measuring containers 50 described later. preferable. By setting in this way, it is possible to reduce the number of juveniles that are not accommodated in the measuring container 50 out of the juvenile shells H2 discharged from the transport container 40, thereby enabling efficient juvenile shell weighing. The transport container 40 has a fan-shaped cross section as shown in FIG. 3, but is not limited to this. The transport container 40 accommodates the larvae H2 from the larvae accumulation part 35, Any shape may be used as long as it is suitable for transporting to the input portion to the measuring container 50.

  In the present embodiment, the plurality of transport containers 40 are fixed to the surface 36 ′ provided with the drain port 37 of the recess 36 and / or the side surface 36 ″ of the recess 36, and the housing 30 is aligned with the horizontal axis. By rotating about 30A, it moves on the circumference of a circle centered on the horizontal axis 30A. In another embodiment of the present invention, the plurality of transport containers 40 may be configured to rotate independently of the housing 30 along the inner wall of the housing 30. For example, a belt-like ring having a width substantially the same as the width of the surface 36 ′ of the recess 36 and rotating around the horizontal axis 30 </ b> A independently of the housing 30 is provided at a corresponding portion of the recess 36. You may make it fix the some conveyance container 40 to a wall surface. In the case of such a configuration, by rotating the belt-like ring provided with the plurality of transport containers 40 without rotating the casing 30, the larvae deposited on the larva stacking portion 35 of the casing 30. H1 can be accommodated in the transport container 40. However, if the belt-like ring and the housing 30 are configured to rotate independently as described above, there is a possibility that the larvae are caught between the sliding portions of the two and damaged. Therefore, it is preferable that the transport container 40 is configured to be fixed to or integrated with the recess 36 and to rotate together with the same as in the present embodiment.

  The juvenile shellfish H2 transported by the plurality of transport containers 40 is directed from each of the plurality of transport containers 40 toward the guide unit 33 described later when each of the plurality of transport containers 40 reaches the upper part inside the housing 30. Fall. A second water injection port 83 connected to the header 81 of the water injection unit 80 by one of the hoses 89 is provided at the top of the cover 75. Water supplied from the header 81 is supplied from the water injection port 83. The water supplied from the water injection port 83 enters the inside of the transport container 40 through the drain port 37 of the recess 36 and each drain port 43 of the transport container 40 reaching the upper part inside the housing 30. By this water, the juvenile shell H2 in the transport container 40 is discharged without adhering to the inside of the transport container 40 when the transport container 40 reaches the upper part.

  As shown in FIGS. 2 (a) to 2 (c), the juvenile discharged from several transport containers 40 reaching the upper part is disposed in the middle of the juvenile fall route between the transport container 40 and the weighing container 50. In order to efficiently guide the shellfish into the inside of the measuring container 50, a guide portion 33 is provided which has openings in the upper and lower portions and the upper opening is larger than the lower opening. Even if the guide portion 33 has such a shape, the capacity of each of the transport containers 40 is set to be smaller than the capacity of each of the weighing containers 50 as described above. Since the container 50 is filled, the larvae discharged from the transport container 40 will not clog the guide portion 33.

  The apparatus 1 is provided with a measuring container transport device that extends from the inside of the housing 30 to the outside of the housing 30 through the second opening 32 along the horizontal axis 30 </ b> A of the housing 30. In the present embodiment, the weighing container transport device is an endless conveyor 60 provided horizontally. As shown in FIG. 2, one drive roller 61 of the endless conveyor 60 is preferably located between the first opening 31 and the plane on which the transport container 40 moves, inside the housing 30. The other drive roller 62 of the endless conveyor 60 is preferably provided outside the housing 30.

  FIG. 4 is an enlarged view of the endless conveyor 60 and the plurality of weighing containers 50. As shown in FIGS. 2B and 4, a plurality of measuring containers 50 are fixed on the endless conveyor 60 at a predetermined interval. When each of the plurality of weighing containers 50 moves in the direction of the arrow shown in FIG. 4 in parallel with the horizontal axis 30 </ b> A as the endless conveyor 60 moves, and is positioned directly below the lower opening of the guide portion 33, At least a part of the juvenile shells falling from the individual transport containers 40 is accommodated (the juvenile shells accommodated in the measuring container 50 at this time are defined as juvenile shells H3). In the present embodiment, the weighing container 50 is a cylindrical container having a bottom wall and a side wall and having an open top surface. However, the shape is not limited to this, and may be a prismatic shape, for example. . The measuring container 50 is provided with one or a plurality of drain ports 51. The drain port 51 is provided for discharging water that has entered the measuring container 50 together with the juvenile shellfish H2 falling from the transport container 40 (this water is water from the second water inlet). Thus, the juvenile that falls from the transport container 40 is transported to the transport container 40 by configuring the water so that the water enters the measuring container 50 and the discharged water is discharged from one or a plurality of drains 51. And it becomes possible to accurately measure the juvenile shellfish without adhering to the guide portion 33. The size, shape, and number of the one or more drain ports 51 are not particularly limited, and the water contained in the measuring container 50 can be discharged without accumulating inside, and the inner shellfish The size, shape, and number of pieces that do not pass through may be sufficient. Further, the measuring container 50 can be replaced with a larger measuring container or a smaller measuring container as necessary so that a necessary size and number of juvenile shellfish can be measured according to the stage of intermediate growth.

  FIG. 5 is an enlarged view of a connecting portion between one weighing container 50 and the endless conveyor 60. As shown in FIG. 5, in the present embodiment, the bottom wall of the measuring container 50 and the endless conveyor 60 are connected via a connecting member. In the present embodiment, the connecting member is a plate-like connecting plate 52. One end portion 52 ′ of the connecting plate 52 is fixed to the bottom wall of the measuring container 50, and the other end portion 52 ″ is fixed to the endless conveyor 60. That is, the connection plate 52 has a “cantilever” configuration in which one end 52 ″ of both ends is fixed to the endless conveyor 60 and the other end 52 ′ can freely move. By configuring in this way, even when a juvenile is sandwiched between the bottom wall of the measuring container 50 or the lower surface of the connecting plate 52 and the endless conveyor 60, the measuring container 50 is turned up (endless conveyor 60). When 60 reaches the part that bends along the outer periphery of the drive roller 62), the bottom wall of the measuring container 50 or the lower surface of the connecting plate 52 is separated from the surface of the endless conveyor 60, and the sandwiched clams are discharged. Therefore, damage to the young shellfish can be prevented.

  In the present embodiment, the member that connects each of the plurality of weighing containers 50 and the endless conveyor 60 is a plate-like body, but is not limited to this, and may be, for example, a rod-like member. One end 52 ′ of the connection plate 52 is fixed to the bottom wall of the measuring container 50, but this fixing position may be, for example, the side wall of the measuring container 50.

  Among the larvae that have fallen from the transport container 40, some of the larvae that are not accommodated in the measuring container 50 fall beyond the endless conveyor 60, and some remain on the endless conveyor 60. In order to remove the larvae remaining on the endless conveyor 60 from the endless conveyor 60, in the present embodiment, the water injection ports 84 and 85 connected to the header 81 of the water injection unit 80 by one of the hoses 89 are provided. It is comprised so that the water supplied from these water injection holes may flow the young shellfish on the endless conveyor 60. The juveniles that have fallen beyond the endless conveyor 60 and the juveniles that have been washed away from the endless conveyor 60 by the water supplied from the water inlets 84 and 85 are deposited on the juvenile stacking portion 35 again.

  The plurality of weighing containers 50 containing the juvenile shells H3 proceed in the direction of the arrow shown in FIG. 4 toward the second opening 32 on the endless conveyor 60. It is preferable that the plurality of weighing containers 50 are configured to pass under a scraping portion 34 provided above the endless conveyor 60 before exiting the housing 30 from the second opening 32. The lower end of the ground portion 34 is positioned immediately above the plurality of measuring containers 50, and when the juvenile shellfish protrudes from the upper end of the measuring container 50, the juvenile shellfish protruding from the measuring container 50 by the ground portion 34. Removed. By comprising in this way, the quantity H4 of the juvenile shellfish can be measured more accurately.

  The larvae that have fallen beyond the endless conveyor 60, the larvae that have been washed away from the endless conveyor 60 with water from the water inlets 84 and 85, and the larvae that have been removed from the weighing container 50 are removed from the inside of the housing 30. However, some of these larvae may adhere to the inner wall surface of the housing 30. The water supplied from the water injection port 86 connected to the header 81 by one of the hoses 89 is allowed to flow into the housing 30 in order to return the young shellfish adhering to the inner wall surface to the young shell depositing portion 35 without leaving any. It is preferable to make it. The water injection port 86 is provided with a header 105, and a hose 106 is connected to each of the plurality of water injection ports of the header 105. The tips of some of these hoses 106 are arranged at positions where water supplied from the hose 106 flows along the inner wall surface of the housing 30. Further, the remaining tip of the hose 106 is arranged inside the guide portion 33 so that water supplied from the hose 106 flows the juvenile shellfish adhering to the inner wall of the guide portion 33.

  When the measuring container 50 reaches the position of the driving roller 62 at the end of the endless conveyor 60 through the second opening 32 provided in the housing 30, the endless conveyor 60 is driven as shown in FIG. As it bends along the outer periphery of the roller 62, the opening at the upper end faces downward. At this time, the larva H4 inside the measuring container 50 is discharged into the guide device 65. In this embodiment, water injection ports 87 and 88 connected to the header 81 by one of the hoses 89 are provided in the guide device 65, and water is supplied toward the inside of the guide device 65. The water injection port 88 is configured such that water from the water injection port 88 is supplied toward the inside of the measuring container 50 that faces downward. The water injection port 87 is configured so that water from the water injection port 87 is supplied toward the outer wall surface of the measuring container 50 and the endless conveyor 60. By the water supplied from these water injection ports 87 and 88, the juvenile shellfish adhering to the measuring container 50 and the endless conveyor 60 will be washed away.

  The juvenile shellfish H4 discharged from the measuring container 50 into the guide device 65 falls into the growth container 70 through the shooter 67 together with water discharged from the water injection ports 87 and 88 provided on the side portion of the guide device 65. To do. The guide device 65 includes a juvenile shell receiving portion 66 having a juvenile shell discharge port for discharging the juvenile shellfish to the shooter 67, a shooter 67 slidably combined with the juvenile shell discharge port of the juvenile shell receiving portion 66, And a lever 68 provided on a side portion of the shooter 67. In the present embodiment, the shooter 67 is moved up and down by moving a lever 68 fixed to the shooter 67 up and down, and the movement of the endless conveyor 60 is intermittently performed in synchronization with the up and down movement. Yes. Therefore, when the shooter 67 is lowered by the lever 68, the endless conveyer 60 advances in the direction of the arrow in FIG. 4 at the same time, the measuring container 50 reaching the end moves downward, and then the endless conveyer 60 stops. . As a result, the larva H4 in the measuring container 50 falls into the guide device 65, and the larva H4 is discharged from the lower opening 69 of the shooter 67.

  In this embodiment, for example, the following mechanism is used to realize the synchronization between the vertical movement of the shooter 67 and the endless conveyor 60, but the mechanism for realizing the synchronization is not limited to these. In the present embodiment, concave portions (or convex portions) such as transverse grooves are provided at regular intervals on the back surface of the endless conveyor 60, and convex portions (or convex portions) meshing with the concave portions (or convex portions) of the endless conveyor 60 are provided on the surface of the driving roller 62. Or a recess). Due to the meshing of these concave and convex portions, the endless conveyor 60 moves in the direction of the arrow shown in FIG. The driving roller 62 is connected to the motor 110 via a driving member such as a chain, and rotates by the driving force of the motor 110. For example, the drive roller 62 is provided with two cams so as to form an angle of 180 ° with each other, and the drive roller 62 is controlled to stop at 1/2 rotation by a signal from the cam switch. The juvenile shell receiving portion 66 is provided with limit switches for detecting the upper and lower stopping points of the shooter 67. When the limit switch detects the lower stopping point of the shooter 67 lowered by the lever 68, the driving roller 62 stops 1/2 turn. The measuring container 50 moves with the rotation of the driving roller 62, and stops inside the guide device 65 with the opening portion facing downward. The shooter 67 and the juvenile shell receiving portion 66 are connected by an elastic member 111 such as a spring, for example. After the shooter 67 reaches the lower stop point, the shooter 67 is returned by the action of the elastic member 111, and when the limit switch detects the upper stop point of the shooter 67, the apparatus 1 recognizes that one step of the young shellfish has been completed. In the present apparatus 1 according to the present embodiment, when the endless conveyor 60 stops, a plurality of weighings are performed such that one of the weighing containers 50 on the endless conveyor 60 is located directly below the opening at the lower part of the guide portion 33. The space | interval of the container 50, the length of the endless conveyor 60, and a moving distance are set.

  In another embodiment of the present invention, the shooter 67 is moved up and down by moving the lever 68 up and down, and the movement of the transport container 40 (that is, the rotation of the housing 30) and the movement of the endless conveyor 60 are synchronized with this vertical movement. It can also be configured to be performed intermittently. According to this configuration, when the shooter 67 is lowered, the endless conveyor 60 that has been stopped advances, the measuring container 50 located at the end thereof moves downward, and then the endless conveyor 60 stops again. . As a result, the larva H4 in the measuring container 50 falls into the guide device 65. In this case, when the endless conveyor 60 is in a stopped state, it is preferable that the rotation of the housing 30 is stopped and one measuring container 50 is positioned directly below the guide portion 33. This is realized, for example, by stopping the drive motor 100 that rotates the housing 30 when the limit switch detects the top stop point of the shooter 67 and the shooter 67 does not operate even after a predetermined time has elapsed. be able to. As described above, the timing at which the juvenile shell H2 is transported to the input portion to the measuring container 50, the timing at which the juvenile shell H2 enters the measuring container 50, and the timing at which the juvenile shell H4 is discharged into the breeding container 70 are mutually connected. By controlling the rotation of the housing 30, the interval between the plurality of weighing containers 50, the length of the endless conveyor 60, and the movement distance so as to be interlocked, the amount of larvae returning to the larvae depositing portion 35 is minimized. Can do. As a result, it is possible to minimize damage to the larvae by colliding with various parts of the constituent members when the larvae fall inside the housing 30.

  Next, a method for dispensing juvenile shellfish using the juvenile shellfish dispensing device 1 according to one embodiment of the present invention will be described. First, the larva H1 in a container (larvae supply part) containing water is introduced into the larvae introduction part 20 of the apparatus 1 together with water. The juvenile shell H1 thrown into the juvenile shell introduction unit 20 passes through the first opening 31 provided in the housing 30 of the apparatus 1 and is part of the recess 36 along the inclination of the inner wall surface of the housing 30. It moves to the juvenile deposit part 35 containing. The juvenile feeding section 20 is provided with a water inlet 82, and the introduced juvenile H1 is formed by the water supplied from the water inlet 82 and the flow of the water introduced together with the juvenile H1. It is possible to move to the juvenile stacking portion 35 without adhering to the input portion 20 and the inner wall surface of the housing 30.

  In the juvenile depositing portion 35, juvenile shellfish H1 that has moved with the water accumulates. In the juvenile shell depositing portion 35, water is discharged to the outside of the housing 30 from one or a plurality of drain ports 37 provided in the recess 36 of the housing 30. That is, in the juvenile depositing part 35, since the juvenile shell H1 thrown in from the juvenile launching part 20 and the water from the juvenile launching part 20 and the water inlet 82 are separated, the juvenile depositing part 35, particularly the concave part 36 is separated. Only the juvenile shellfish can be deposited efficiently.

  The juvenile shellfish H1 deposited on the juvenile shell accumulation section 35 is accommodated in a plurality of transport containers 40 that rotate as the housing 30 rotates. Each of the plurality of transport containers 40 sequentially passes through the larvae depositing portion 35 as the casing 30 rotates, and at that time, at least a part of the larvae H1 accumulated in the recesses 36 of the larvae depositing portion 35. Contains H2. In this way, the juvenile shellfish H1 is distributed to the plurality of first juvenile shellfish groups H2.

  The plurality of first juvenile shells H2 accommodated in each of the plurality of transport containers 40 are transported to the upper portion along the circumference of the housing 30 as the housing 30 rotates. In the transport container 40, at least a part of the juvenile shells H2 accumulated in the juvenile shell depositing section 35 and the water that has moved to the juvenile stacking section 35 are taken in. The water taken in 40 is discharged from one or more drain ports 43 provided in the transport container 40 in the course of transport.

  The juvenile shell H2 conveyed by the conveyance container 40 falls downward from the conveyance container 40 when reaching the upper part of the casing 30 (as described above, the upper part of the casing 30 constitutes a charging part to the measuring container 50). To do. At this time, a part of the juvenile shell H2 may adhere to the inner wall surface of the transport container 40 due to the surface tension of water and the influence of the tentacle of the juvenile shell and may not fall. In order to prevent this, water is supplied from the water injection port 83. This water enters the inside of the transport container 40 through the drain outlet 43 of the transport container 40 and discharges the juvenile shellfish adhering to the inside.

  The juvenile shellfish H2 that has fallen from the transport container 40 together with the water supplied from the water injection port 83 is accommodated in one of a plurality of measuring containers 50 that move parallel to the horizontal axis 30A of the housing 30. As described above, the amount of juvenile shells H2 accommodated in one transport container 40 is less than the amount of juvenile shells H3 accommodated in one metering container 50, and one metering container 50 includes several transport containers 40. It is preferably filled with juvenile shellfish. Of the larvae discharged from the transport container 40, the larvae that have not entered the measuring container 50 either fall on the endless conveyor 60 or fall below the endless conveyor 60. The water that has entered the measuring container 50 is discharged from one or a plurality of drain ports 51 provided in the measuring container 50. In this manner, the juvenile shells that have fallen from the transport device 40 are sequentially accommodated in each of the plurality of weighing containers 50.

  The plurality of measuring containers 50 each containing the juvenile shellfish H3 are sequentially moved in the direction of the second opening 32 of the housing by the movement of the endless conveyor 60. When the amount of juvenile shellfish H3 that has entered the measuring container 50 is large, the juvenile shellfish protruding from the measuring container 50 is removed by the slicing section 34 provided on the moving path of the measuring container 50. As a result, a predetermined amount of juvenile shellfish H4 to be weighed remains in the weighing container 50. In this way, the plurality of first larvae groups H2 are distributed to the plurality of second larvae groups H4 having a predetermined amount. In addition, when the quantity of the juvenile shellfish H2 is the same as the quantity of the juvenile shellfish H3, several 2nd juvenile shellfish groups are H3. The amount of the juvenile shellfish H4 varies depending on the stage of the intermediate growth, and is about 80 to 100 at the beginning of the intermediate growth, and finally about 20 to 30.

  Of the larvae that have fallen from the transport container 40, the larvae that have not been accommodated in the measuring container 50 and the larvae that have been removed from the measuring container 50 by the scraping section 34 are water supplied from the water inlets 84, 85, and 86. As a result of this flow, the inside of the housing 30 is moved downward to be deposited on the larvae depositing portion 35 and is transported again by the transport container 40.

  When the weighing container 50 moves downward along the outer periphery of the drive roller 62, the juvenile shellfish H4 conveyed by the weighing container 50 through the second opening 32 of the housing 30 to the end of the endless conveyor 60 moves to the weighing container. It drops downward from 50 and is put into the guide device 65. The juvenile shellfish H4 introduced into the guide device 65 passes through the shooter 67 together with water supplied into the guide device 65 from the water injection ports 87 and 88 and is introduced into the growth container 70.

  As described above, it is possible to continuously measure a predetermined amount of juveniles from the juvenile shells supplied from the juvenile shell supply unit, and sequentially store the weighed predetermined amount of juveniles in the breeding container.

DESCRIPTION OF SYMBOLS 1 Juvenile shell dispensing unit 20 Juvenile feeding part 30 Case 31 1st opening 32 2nd opening 33 Guide part 35 Flask accumulation part 40 Transport container 50 Measuring container 52 Connection plate 60 Endless conveyors 61 and 62 Drive Roller 65 Guide part 66 Flask receiving part 67 Shuter 68 Lever 70 Growing container 80 Injection unit 82-88 Injection port 89 Hose 90 Mounting frame 100, 110 Motor

Claims (12)

A juvenile shellfish weighing and distribution method for continuously weighing a predetermined amount of juvenile shellfish and sequentially storing them in a plurality of breeding containers,
A deposition step of depositing juveniles by moving the juveniles together with water or seawater to a juvenile depositing section, and separating water or seawater and juveniles in the juvenile depositing section;
A distributing step of distributing the larvae accumulated in the larvae accumulation part to a plurality of first larvae groups;
A measuring step of moving the plurality of first juvenile groups together with water or seawater and distributing the plurality of first juvenile groups to the plurality of second juvenile groups each having the predetermined amount;
A discharge step of moving the plurality of second juvenile groups together with water or seawater and discharging the plurality of second shellfish to the plurality of breeding containers;
A method for dispensing and distributing juvenile shellfish, characterized by comprising:     And further comprising a first larva group transporting step of transporting the distributed first larvae group to a position for distribution to the plurality of second larvae groups in the weighing step. The juvenile shellfish dispensing method according to claim 1.   The method further comprises a second larva group transporting step of transporting the distributed second larvae group to a position for discharging to the plurality of breeding containers in the discharging step. The juvenile shellfish dispensing method according to 1.   3. The juvenile shellfish dispensing method according to claim 2, wherein the first juvenile group transporting step includes a step of separating the plurality of first juvenile shell groups distributed and water.   The method for dispensing and distributing larvae according to claim 3, wherein the second larvae group transporting step includes a step of separating the plurality of distributed second larvae groups and water.   The juvenile shellfish metering and distributing method according to claim 1, wherein the amount of each of the plurality of first juvenile shellfish groups distributed in the distributing step is smaller than the predetermined amount.   The method further comprises the step of circulating the juveniles that are not distributed as the plurality of second juvenile groups among the juveniles deposited in the juvenile depositing part to the juvenile depositing part together with water or seawater. The juvenile shellfish dispensing method according to claim 1.   In the discharging step, the plurality of second juvenile shells are discharged to the plurality of growing containers intermittently, and when discharging to the plurality of growing containers is stopped, the distribution in the distributing step is performed. The method of claim 1, wherein one or both of distribution in the measuring step is stopped. A juvenile shellfish dispensing device for continuously weighing a predetermined amount of juvenile shellfish and sequentially storing it in a plurality of breeding containers,
A housing having a first opening for taking larvae together with water or seawater and a second opening for carrying out the measured larvae from the inside;
It has one or a plurality of drains for discharging water or seawater, and is located below the first opening in the housing, and together with water or seawater from the first opening Lava shell accumulation part where lava shells taken inside the housing accumulate,
Each has one or a plurality of drainage ports, and distributes and conveys juveniles to a plurality of first juvenile groups by accommodating at least a part of the juveniles accumulated in the juvenile depositing part. A plurality of transport containers for
A first water inlet for supplying water or seawater into the plurality of transport containers when the plurality of first juvenile shells are discharged from the plurality of transport containers;
Each of the plurality of first tubs by having at least a part of the plurality of first larvae group having one or a plurality of drainage ports and discharged together with water or seawater from the plurality of transport containers A plurality of weighing containers for distributing the larvae group to a plurality of second larvae groups each comprising the predetermined amount;
A weighing container transport device for transporting the plurality of weighing containers to the outside of the housing through the second opening;
A second water inlet for supplying water or seawater into the plurality of measuring containers when the plurality of second juvenile shells are discharged from the plurality of measuring containers;
A guide device for guiding the plurality of second larvae group discharged together with water or seawater from the plurality of measuring containers to the plurality of breeding containers;
A juvenile shellfish dispensing device characterized by comprising:   The casing has a cylindrical shape rotatable around a horizontal axis, and the plurality of transport containers are fixed or integrated with an inner wall surface of the casing, and the horizontal axis is rotated by the rotation of the casing. The plurality of first larvae groups that move on the circumference of a circle having a center and are accommodated in the plurality of transport containers in the larvae stacking unit reach the upper part of the circumference. 10. The juvenile shellfish dispensing device according to claim 9, wherein the device is discharged toward the plurality of weighing containers from the transport container.   Each of the plurality of measuring containers and the measuring container transport device are connected via a connecting means having one end fixed to each of the plurality of measuring containers and the other end fixed to the measuring container transport device. The juvenile shellfish dispensing device according to claim 9, characterized in that:   One that discharges water or seawater for returning juveniles that are not accommodated in the plurality of weighing containers among the plurality of first juvenile groups discharged from the plurality of transport containers to the juvenile stacking unit The juvenile shellfish dispensing device according to claim 9, further comprising a plurality of third water inlets.

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