JPH0691782B2 - Feeding device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding device for feeding fry or the like in a fish tank with an artificial mixed feed in powder form.

[0002]

2. Description of the Related Art Conventionally, feeding of fry in a fish tank is
It was generally performed manually, but it takes a lot of labor for transportation, mixing of mixed feed, and the like, and variations occur in uniform application or application in a small amount for a long time. On the other hand, the applicant of the present application has developed a feeding device (actual application No. 2-7772) in which feeding is mechanized or automated as shown in FIG.

To briefly explain FIG. 4, a plurality of feed storage tanks 202, opening / closing valves 205 for the respective storage tanks, a weighing hopper 206, and a weighing device 20 supporting the weighing hopper 206.
7, a transport hopper 211 disposed below the weighing hopper 206 via an opening / closing valve 210, and a transport hopper 21.
1, a horizontal axis type rotary valve 203 rotatably arranged at the lower end discharge port of the No. 1, a distributor 212, and a feeding nozzle 214
And so on. The feed supplied from each arbitrarily selected storage tank 202 to the weighing hopper 206 via the opening / closing valve 205 is weighed by the weighing device 207, supplied to the transport hopper 211 via the opening / closing valve 210, and fed to the rotary valve 203. Is supplied to the transport path 213 by being rotated about the horizontal axis of the
It flows into the branch passage 215 selected by and is fed to the desired fish-culture tank 216.

[0004]

Generally, in the production of fish seedlings, it is necessary to gradually increase the grain size of feed in accordance with the growth stage of fish and at the same time increase the supply amount.
Regarding the change of particle size, for example, as shown in an example in FIG. 5, in the initial period P1, only a small amount of fine feed is sprinkled, the amount is gradually increased, and in the intermediate period P2, medium grain feed is changed. It is mixed with a fine grain feed, the proportion of the medium grain feed is gradually increased, and then in the period P3, the feed is switched to the medium grain feed only, and the amount thereof is gradually increased. Then, in the next section P4, the coarse-grained feed is mixed with the medium-grained feed, the proportion of the coarse-grain is gradually increased, and in the final section P5, only the coarse-grained feed is switched.

In the production of seeds and seedlings as described above, when a horizontal axis type rotary valve type feeding device as shown in FIG. 4 is used, medium and coarse grain feeds can be sprinkled and mixed accurately. It is extremely difficult to accurately apply the small amount and uniform application of the fine grain feed in the initial stage, and therefore, the initial fine grain feed is manually applied. That is, as shown in FIG. 4, the transport hopper 211 and the horizontal shaft type rotary valve 20 are provided.
In the feeding device utilizing No. 3, fine particles of feed are often left in the weighing popper 206, the transport hopper 211 and the like due to moisture at the time of an intermediate stop after spraying a predetermined amount of feed, and it is difficult to supply an accurate small amount. At the next feeding, the residual feed and the new feed will be mixed and supplied to the fish tank.

[0006]

In order to solve the above problems, the present invention provides a discharging means for discharging feed to a fish tank and a predetermined amount of feed which is connected to the discharging means via a transportation path. A vertical axis type rotary disk type first supplying means and a horizontal axis type rotary valve type second supplying means for supplying by air, and an air supply source for supplying compressed air to the transportation path and the first and second supplying means. The first supply means is a storage tank, a rotatable vertical rotary disk which is arranged directly below the tank and has a through hole for quantitatively conveying powdery particles, and an air flow connected to the air supply source. The rotary disk is rotated to convey the feed sequentially from the storage tank to the air circulation portion and supply the feed to the transportation path together with the air. The second supply means includes a plurality of feed storage tanks, Supply from storage tank Equipped with a weighing means for collecting and weighing the feed to be stored in the hopper, and a horizontal shaft type rotary valve rotatably arranged at the discharge port of the hopper, and the feed of the feed from the hopper to the transportation path is provided by rotating the rotary valve. Is configured to. Further, in order to achieve automation, a control device for controlling the supply operation of the first supply means and the second supply means is provided based on a preset program.

[0007]

In the early stage of the growth stage of fry, only the vertical axis type rotary disk type first feeding means is used, and a small amount of fine grain feed is fed from the first feeding means to the discharging means through the transportation path. According to the growth of the fry, the amount of the fine grain feed from the first feeding means is reduced and then mixed with the medium grain feed from the second feeding device to gradually increase the proportion of the medium grain feed,
Then, the supply from the second supply means is completely switched.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an overall configuration diagram of a feeding apparatus to which the present invention is applied. Discharging means A having a distributor 43, a feeding nozzle 48, etc., and a vertical axis type rotary disk type first feeding means B.
1, storage tanks 2, 3, transportation hopper 32, weighing device 33
And a horizontal axis type rotary valve type second supply means B2 having a horizontal axis type rotary valve 34 and the like, and a compressor 38 and the like as an air supply source.

Two storage tanks 2 and 3 of the second supply means B2 are arranged outside the second supply means unit 1, and one storage tank 2 is provided.
The medium-sized feed is stored in and the other coarse-grained feed is stored in the other storage tank 3. The lower ends of the storage tanks 2 and 3 are connected to pipes 5 and 6, and flow control valves 11 and 1 are provided in the middle of the pipes 5 and 6.
It is open to the atmosphere through 2, and the other ends of the pipes 5 and 6 are connected to one ends of the pipes 18 and 19 via the connectors 15 and 16. The other ends of the pipes 18 and 19 are connected to one end of a pipe 22 via a confluent pipe 21, and the other end of the pipe 22 is connected to an upper end portion of a cyclone hopper 23.
Motor-operated on-off valves 24 and 25 are installed in the pipes 18 and 19, and an ejector 27 is installed in the pipe 22. The lower end discharge port of the cyclone hopper 23 is connected to the upper end of the transport hopper 32 via an electric or pneumatic on-off valve 31.

The transport hopper 32 is supported by a weighing device 33 composed of, for example, a load cell, and a horizontal shaft type rotary valve 34 is arranged at the lower end discharge port of the transport hopper 32, and the rotary valve 34 is a transport pipe 29. And the air supply pipe 35. The rotary valve 34 is configured to rotate about a horizontal axis by a motor 34a, and by rotating about the horizontal axis, feed sequentially supplied from the transport hopper 32 is fed into the transport pipe (transport path) 29.

The transportation pipe 29 is connected to the pipe 35 so that compressed air is supplied from the air supply pipe 35. The air supply pipe 35 is connected to one end of a pipe 37 via a connector 36, and the other end of the pipe 37 is connected to a compressed air discharge port of an oilless compressor 38 as the air supply source. An on-off valve 39 on the pipe 37
An electromagnetic opening / closing valve 40 is installed in the pipe 35. Connector 36 of piping 35 and on-off valve 40
A branch pipe 35b is branched from a position between and, and the tip of the branch pipe 35b is connected to the drive air inlet of the ejector 27. An electromagnetic on-off valve 41 is provided on the branch pipe 35b.
Is installed. The other end of the pipe 29 is connected to the moving body 61 of the distributor 43 via the connector 42, and the plurality of feed outlets 63 of the distributor 43 are connected to the pipe 45 (only three pipes are shown in FIG. 1). ) One end of each is connected.
The other end of the pipe 45 is connected to one end of a plurality of pipes 47 via a branch connector 46, and a rotation type feeding nozzle 48 is connected to the other end of the pipe 47. Feeding nozzle 48
Is located above the water surface of the fish tank 49.

Reference numeral 50 denotes a control device 50 including, for example, a microcomputer, the output portion of which is a motor 38a of the compressor 38 and a motor 3 of the rotary valve 34.
4a, the motor 64 of the distributor 43, the motor 57 of the first supply means B1 and the on-off valves 24, 25, 39, 40, 41,
59, etc., read detection signals from the weighing device 33, distributor 43, etc., and open / close valves 24, 25, 3 of the second supply means B2 in accordance with preset data and programs.
1, 40, 41, the rotary valve 34, the opening / closing valve 59 of the first supply means B1, the motor 57, the motor 64 of the distributor 43, etc. are controlled.

The vertical axis type rotary disk type first supplying means B1 is a so-called table feeder integrally having a storage tank 56, and a pipe 58 is connected to a feed outlet portion 97 of the table feeder. The tip of 58 is
The transportation pipe 29 is connected to the pipe 29 through a merging pipe 60 provided in the middle of the transportation pipe 29. The electric or pneumatic on-off valve 59 is provided in the middle of the pipe 58.

FIG. 2 shows an enlarged vertical sectional view of the rotary disk type first supplying means B1. A motor 57 is fixed to an upper part of a base 71 through a bracket, and the motor 57 is controlled by the control device 50. AC power is supplied, and the rotation speed is controlled by changing the frequency of the AC power.

A casing 72 is placed on the upper surface of the base 71 via a cylindrical sleeve, and a storage tank 56 for storing powder particles is provided on the upper surface of the casing 72.
The storage tank 56 stores fine-grained feed suitable for juveniles immediately after hatching in the early stage of growth.

A blade 73a is provided inside the storage tank 56.
A stirring blade 73 having the above is disposed, and the stirring blade 73 is fixed to a rotating shaft 76 rotatably supported by a bearing 75 fixed to the lower surface of the casing 72. The rotating shaft 76 is connected to the output shaft 7 of the motor 57 via the coupling 77.
Connected to eight.

A disc-shaped vertical rotary disk 80 is rotatably arranged in a circular recess formed on the upper surface of the casing 72. The rotary disk 80 has a substantially half-portion located inside the storage tank 56, and part of the rotary disk 80 extends outside the storage tank 56. Storage tank bottom wall 56
A cutout 81 is formed in the portion a corresponding to the rotary disk 80.

The rotary disk 80 is arranged substantially horizontally and is fixed to the upper end of a vertical rotary shaft (vertical axis) 82. The rotary shaft 82 is rotatably supported by a bearing 83 fixed to the lower surface of the casing. There is. A gear 85 is fixed to the lower end of the rotary shaft 82, and the gear 85 meshes with a gear 86 fixed to the rotary shaft 76. The rotation of the motor 57 causes the rotation shaft 82 to rotate via the gears 86 and 85, thereby rotating the rotary disk 80 around the vertical axis.

As shown in FIG. 3, the rotary disk 80 has a large number of through-holes 90 for quantitatively conveying granular material, which are circumferentially arranged at equal intervals in the circumferential direction.

In FIG. 2, an air passage 91, which can communicate with one through hole 90 of the rotary disk 80, is formed in the casing 72 at a position radially outward of the outer circumference of the storage tank 56. Is connected to the air pipe 92. The air passage 91 and the through hole 90 constitute an air circulating portion. On the other hand, a feed passage is formed on the flange 95 of the storage tank 56 at a position corresponding to the air passage 91 as the feed outlet 97, and the feed passage (feed outlet) 97 is connected to the transportation pipe 58 as described above. Has been done.

In FIG. 1, an air vent pipe 99 is connected to the upper end of the storage tank 56 of the first supply means B1, and the air vent pipe 99 is connected to the pipe 29 portion downstream of the merging pipe 60. The air supply pipe 92 of the first supply means B1 is connected to the air supply pipe 35 via a connector 93 and a pipe 94.

The moving body 61 of the distributor 43 is screwed into a rotatable screw shaft 62 and is supported by a guide rail (not shown) or the like so as to be movable in the screw shaft direction and non-rotatable. By rotating, the moving body 61 is moved in the axial direction of the screw shaft 62 and stopped at an appropriate feed outlet 63.

In the control device 50, the feeding time, the number of feedings per day, the feeding amount, the kind of feed, the selection of the feeding speed, the mixing ratio, etc. are set and set in accordance with the growth stage of the fry. According to the program, each on-off valve 24, 25, 31, 40, 41,
59 and each motor 57,34a, 38a, 64 etc. are controlled.

An example of feeding according to the stage of growth will be described. In the early stage of growth, the rotary disk type first supplying means B1 and the compressor 38 are used, and the rotary valve type second supplying means B2 is not used. That is, by the control device 50, each on-off valve 24 of the second supply means B2,
25 and the opening / closing valve 41 of the air branch pipe 35b are kept closed, while the first supply means B1 rotates the motor 57 at a predetermined rotation speed and opens / closes the pipe 58 at a preset time. Open valve 59. Further, the motor 64 of the distributor 43 is rotated to move the moving body 61 to a predetermined fish tank 49.
To the exit 63 corresponding to.

In FIG. 2, the rotary disk 80 is moved from the storage tank 56 by the blade 73a of the stirring blade 73.
A certain amount of fine feed is pushed into the through hole 90 of the
By the rotation of the rotary disk 80 about the vertical axis, it is conveyed to the position of the air passage 91, where the air passage 91 and
By matching the through hole 90 and the feed passage 97, the feed is supplied from the feed passage 97 to the pipe 58 together with the compressed air. When the rotation speed of the rotary disk 80 is increased, the supply amount per unit time increases, and conversely, when the rotation speed is decreased, the supply amount per unit time decreases.

During operation, a part of the air in the air passage 91 leaks from below into the storage tank 56 through the gap between the rotary disk 80 and the casing 72.
This leakage of air prevents the feed tank from agglomerating in the storage tank 56, and the air pressure is accumulated in the storage tank 56. Further, the inside of the storage tank 56 is maintained at a pressure substantially equal to the pressure inside the transportation pipe 29 by communicating with the transportation pipe 29 through the air vent pipe 99.

When the set amount of feed is supplied to the predetermined fish tank 49, the opening / closing valve 59 and the opening / closing valve 40 for air are closed by a signal from the control device 50. At this time, there is a residual pressure of compressed air in the storage tank 56, but the residual pressure is released from the air vent pipe 99 to the transportation pipe 29. That is, by closing the opening / closing valve 59, excessive supply of feed can be prevented, stable supply can be achieved, and the inside of the storage tank 56 can be returned to a state without residual pressure.

First feeding means B1 according to the growth of fry
When the supply amount of the fine grain feed from the above is increased to a certain extent, this time, for example, the medium grain feed stored in one storage tank 2 of the second supply means B2 is fed from the first supply means B1. It is mixed with the fine grain feed and supplied to the discharging means.

The operation of the second supply means B2 will be described in detail. The opening / closing valves 25 and 41 of the second supply means B2 are opened,
The ejector 27 operates and the medium grain feed stored in the storage tank 2 is supplied to the cyclone hopper 23. After turning in the cyclone hopper 23, the weight of the feed fed to the transport hopper 32 is measured by the weighing device 33. When a predetermined amount of feed is supplied to the transport hopper 32, the control device 50 closes the electromagnetic valve 41.

Next, the control device 50 controls the distributor 43 to connect the pipe 35 to the pipe 45 corresponding to a preset predetermined fish tank 49, and actuates the rotary valve 34. As a result, the feed contained in the transport hopper 32 is supplied to the transport pipe 29. Since compressed air is supplied from the compressor 38 to the transportation pipe 29 through the air supply pipe 35, the feed is transported through the transportation pipe 29 together with the air flow.

Then, in the merging valve 60, it is mixed with the fine grain feed from the first feeding means B1 and fed through the distributor 43 from the injection port of the feeding nozzle 48 to the predetermined fish tank 49.

When the fry grow further, only the medium grain feed from the storage tank 2 in the second feeding means B2 is fed to the distributor 43 and the feeding nozzle 48 through the transportation pipe 29.

As the growth progresses further, the opening / closing valve 25 is first opened by the second supply means B2, the medium-grain feed of the storage tank 2 is supplied to the transportation hopper 32 via the cyclone hopper 23, weighed, and then opened / closed. Close the valve 25 and open / close valve 24
And the coarse grain feed in the storage tank 3 is fed to the transport hopper 32 and weighed through the same process. The weighed and layered mixed feed is fed from the transport hopper 32 to the rotary valve 34.
Is supplied to the transport pipe 29 by the rotation of the above, and is supplied to the distributor 43 together with the air from the air supply source as described above, and is sprayed from the feeding nozzle 48 to the fish tank 49.

[0034]

As described above, according to the present invention, the vertical axis type rotary disc type first feeding means suitable for small amount of fine grain feed and the horizontal axis suitable for feeding medium and coarse grain feeds. Type rotary valve type second supplying means, the supplying means is appropriately selected so that the feed can be supplied to the fish tank. Therefore, in the early stage of growth, the rotary disc type first supplying means is used. By using a small amount of fine grained feed and using the rotary valve type second supply means to mix medium and coarse grained feeds one by one as they grow up, from the early stage of growth until the time of fried, It can be sprayed mechanically and fully automatically in the seedling production process. That is, labor saving can be achieved in the seedling production process,
Automation can also be achieved.

In particular, by using the vertical axis type rotary disk type first supplying means, it is possible to precisely and evenly disperse a small amount of fine particles, which has been performed manually until now, and the growth effect is improved.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a feeding device to which the present invention is applied.

FIG. 2 is an enlarged vertical cross-sectional view of a vertical axis type rotary disc type first supply means.

FIG. 3 is a plan view of the vertical axis type rotary disk alone of FIG.

FIG. 4 is an overall configuration diagram of a conventional example.

FIG. 5 is a table showing an example of changes in feed formulation depending on the growing stage.

[Explanation of symbols]

 A discharging means B1 vertical axis type rotary disk type first supplying means B2 horizontal axis type rotary valve type second supplying means 2,3 storage tank 29 transport pipe 32 transport hopper 34 rotary valve 49 fish tank 50 controller 56 storage Tank 80 Rotary disk 90 Through hole 91 Air passage (air circulation part)

Claims (1)

[Claims] 1. A discharging means for discharging a feed to a fish tank, a vertical axis type rotary disc type first supplying means which is connected to the discharging means via a transportation path and supplies a predetermined amount of feed by air. It is provided with a horizontal axis type rotary valve type second supply means and an air supply source for supplying compressed air to the transportation path and the first and second supply means, and the first supply means includes a storage tank and a tank. Equipped with a rotatable vertical axis type rotary disk having a through hole for powder / quantitative substance quantitative transfer arranged immediately below, and an air circulating portion connected to the air supply source, by rotating the rotary disk, feed is fed from a storage tank. The second supply means is configured to sequentially convey to the air circulation portion and supply the transportation path together with air, and the second supply means stores a plurality of feed storage tanks and the feeds supplied from the storage tanks in a hopper for weighing. Weighing means, A feeding device comprising a horizontal shaft type rotary valve rotatably disposed at the discharge port of the hopper, and configured to supply the feed from the hopper to the transportation path by the rotation of the rotary valve.