Automatic fry counting device for breeding work ship and use method of automatic fry counting device

Abstract

The invention relates to the technical field of counting devices, and discloses an automatic fry counting device for a breeding work ship and a use method thereof.The automatic fry counting device comprises a supporting frame, a storage cabin is fixedly installed at the top of the supporting frame, and a conveying belt is arranged below the right end of the storage cabin. A first gear is driven by a tooth groove in the upper portion of a movable plate to rotate so that a rotating block can be controlled to automatically take out fries in a storage cabin and distribute the fries into a fry tray, then when the fries pass through the lower portion of a connecting frame, the tooth groove in the lower portion of the movable plate can drive a rotating pipe to continuously rotate, and a brush on the rotating pipe can continuously sweep the fries in the fry tray; meanwhile, water sprayed out of water outlet holes in a rotating pipe can further disperse the fries in the fry plate, so that the fries are evenly distributed in the fry plate, then the fry plate can be automatically photographed when passing through a visual inspection shooting device, and the visual inspection shooting device can upload pictures to the system to automatically complete counting; therefore, the effects of continuously and automatically counting the fries and being high in automation degree are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of counting devices, in particular to an automatic fry counting device for aquaculture vessels. Background Art

[0002] In deep-sea fish farming vessels, accurate counting of fish fry is the basic guarantee for standardized management of aquaculture, including scientific feeding, stocking density control, fish fry survival rate assessment, and fish fry purchase and sale. It is the fundamental guarantee for implementing aquaculture automation.

[0003] The existing computer vision-based automatic fry counting system (publication number: CN101430775A) has at least the following disadvantages: the above-mentioned device counts the fry one by one in the water tank, requiring workers to constantly adjust the equipment and move the water tanks in the cabin, and cannot achieve continuous counting. The degree of automation is low, and when a large number of fry are placed in the water tank for counting, the fry will overlap, which easily leads to a decrease in the counting accuracy of the device and a larger error. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automatic fry counting device for aquaculture vessels and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An automated fry counting device for aquaculture vessels comprises a support frame, a storage compartment is fixedly installed on the top of the support frame, a conveyor belt is arranged below the right end of the storage compartment, fixed frames are arranged on both sides of the conveyor belt, the conveyor belt is movably installed on the fixed frame, a driving motor is fixedly installed on the fixed frame at one end corresponding to the conveyor belt, the output end of the driving motor is fixedly connected to a roller on one side of the conveyor belt, fry trays are evenly and equidistantly arranged on the conveyor belt, a connecting seat is fixedly installed on the bottom of the fry tray, the connecting seat is fixedly installed on the conveyor belt, and a buffer plate is fixedly installed on the right side of the fixed frame at a position corresponding to the end of the conveyor belt.

[0007] As a further solution of the present invention, a rotating block is movably installed on the right end side wall of the storage compartment corresponding to the position of the fry plate, and a feeding trough is provided on the side wall of the rotating block. A connecting rod is fixedly installed on the left side of the rotating block, and the connecting rod is movably installed in the side wall of the storage compartment. The left end of the connecting rod penetrates the top of the storage compartment and a first gear is fixedly installed thereon. A fixed plate is fixedly installed on the left side of the connecting seat corresponding to the position of the first gear, and a movable plate is fixedly installed on the fixed plate. Tooth grooves are provided on the upper and lower sides of the movable plate, and the first gear is meshed with the tooth grooves above the movable plate. A guide plate is fixedly installed on the storage compartment corresponding to the position of the rotating block.

[0008] As a further solution of the present invention, a connecting frame is fixedly installed in the middle position of the fixed frame, a water tank is fixedly installed on the top of the connecting frame, a rotating tube is provided in the middle of the connecting frame at a position corresponding to the fry plate, hanging arms are provided at both ends of the rotating tube, the rotating tube is movably installed on the hanging arm, a fixing rod is fixedly installed on the left end of the rotating tube, the left end of the fixing rod penetrates the hanging arm and extends to the position of the movable plate, a second gear is fixedly installed on the top of the left end of the fixing rod, and the second gear is meshed with the tooth groove at the bottom of the movable plate.

[0009] As a further solution of the present invention, brushes are fixedly installed on the upper and lower sides of the rotating tube, water outlet holes are evenly and equidistantly opened on the side walls of the water outlet, a connecting pipe is movably connected to the right end of the rotating tube, a water pump is provided at the other end of the connecting pipe, the water pump is fixedly installed on a connecting frame, the connecting pipe is connected to the output end of the water pump, and the input end of the water pump is fixedly connected to the bottom of the water tank.

[0010] As a further solution of the present invention, a movable grid is movably installed in the middle of the fry tray, a movable groove is opened on the inner wall of the fry tray, a threaded rod is movably installed in the movable groove, a control block is arranged at a position corresponding to the threaded rod on the outside of the fry tray, the top of the threaded rod penetrates the fry tray and is fixedly connected to the control block, the side wall of the movable grid is threadedly connected to the threaded rod, and the surfaces of the fry tray and the movable grid are both pure white.

[0011] As a further solution of the present invention, a mounting frame is fixedly installed on the top right end of the fixing frame, and a visual detection and shooting device is fixedly installed on the top of the mounting frame. The visual detection and shooting device can take pictures of the fry tray passing below. After taking pictures, the visual detection and shooting device will upload them to the network, and the non-transparent fry in the photo can be counted through the counting system.

[0012] As a further solution of the present invention, a drainage groove is provided on the side wall of the fry tray.

[0013] The method for using the automatic fry counting device for aquaculture vessels comprises the following steps:

[0014] S1: Mix the fry to be counted with water and pour them into the storage cabin, then fill the water tank with water, and then start the visual monitoring camera.

[0015] S2: To ensure the accuracy of counting, the depth of the fry tray needs to be adjusted according to the size of the fry to be counted before use. The threaded rod can be driven to rotate by rotating the control block, and the movable grid can be controlled to rise and fall in the fry tray by the threaded rod. The depth of the fry tray is adjusted to the position where the water inside can just flood the back of the fry. This can prevent the water in the fry tray from being too deep, causing the fry to overlap, or the water from being too shallow, causing the fry to bounce due to stress and affect the effect of subsequent counting.

[0016] S3: Then start the driving motor to drive the conveyor belt to rotate, and the conveyor belt can drive the fry tray to move. When the fry tray moves to the bottom of the right end of the storage compartment, the top of the movable plate on the left side of the connecting seat will mesh with the first gear, and the movable plate will drive the first gear to rotate one circle. The first gear will drive the rotating block to rotate through the connecting rod. When the feeding trough on the rotating block turns to the storage compartment, the fry will enter. Then when the feeding trough on the rotating block turns out, the fry inside will fall onto the guide plate, and the fry will slide into the fry tray through the guide plate, thereby achieving the effect of automatically distributing the fry.

[0017] S4: The conveyor belt will drive the fry tray to continue moving. When the fry tray passes under the connecting frame, the rotating tube between the connecting frames will be above the fry tray. When the fry tray moves, the bottom of the movable plate on the fixed plate will mesh with the second gear. At this time, the second gear will drive the rotating tube to rotate continuously. The brush on the rotating tube will continuously sweep the fry in the fry tray, so that the fry can be evenly distributed in the fry tray. At the same time, the water pump will draw water from the water tank and transport it to the rotating tube, and then it will be sprayed into the fry tray through the water outlet on the rotating tube. When water is added to the fry tray, the water flow can further disperse the fry in the fry tray, thereby achieving the effect of facilitating subsequent counting.

[0018] S5: Then the conveyor belt continues to drive the fry tray to move. When the fry tray passes directly under the visual detection and shooting device, the visual detection and shooting device will take a photo of the fry tray. Then the visual detection and shooting device will upload the taken photo to the counting system. Since the surfaces of the fry tray and the movable grid are pure white, the non-transparent fry are very obvious in the fry tray. The counting system can quickly calculate and record the number of fry in the photo.

[0019] S6: The conveyor belt will then continue to drive the fry tray to move. When the fry tray moves to the rightmost end of the conveyor belt, the fry in the fry tray will fall onto the buffer plate, and the buffer plate will guide the fry to the culture cabin for culture.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, the tooth groove above the movable plate drives the first gear to rotate and control the rotating block to automatically take out the fry in the storage compartment and distribute it to the fry tray. Then, when passing through the bottom of the connecting frame, the tooth groove below the movable plate will drive the rotating tube to rotate continuously, and the brush on the rotating tube will continuously sweep the fry in the fry tray. At the same time, the water sprayed from the water outlet on the rotating tube can further disperse the fry in the fry tray, so that the fry are evenly distributed in the fry tray. Then, when the fry tray passes through the visual detection and shooting device, it will automatically take a picture of the fry tray, and then the visual detection and shooting device will upload the picture to the system to automatically complete the counting, so as to achieve the effect of continuous and automatic counting of the fry without manual operation and high degree of automation.

[0022] 2. In the present invention, the threaded rod can be driven to rotate by rotating the control block, and the movable grid can be controlled to rise and fall in the fry tray by the threaded rod, so that the depth of the fry tray is adjusted to a position where the water inside can just flood the back of the fry, thereby preventing the fry from overlapping due to excessive water depth in the fry tray or from bouncing due to stress due to too shallow water, which affects the subsequent counting accuracy and increases the error. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the automatic fry counting device for aquaculture vessels proposed by the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle;

[0026] Figure 4 This is a partial structural schematic diagram of the automatic fry counting device for aquaculture vessels proposed by the present invention;

[0027] Figure 5 This is a schematic diagram of the parts structure of the automatic fry counting device for aquaculture vessels proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the disassembled structure of the fry tray of the automatic fry counting device for aquaculture vessels proposed by the present invention.

[0029] In the figure: 1. support frame; 2. storage compartment; 3. fixed frame; 4. drive motor; 5. rotating block; 6. feeding trough; 7. conveyor belt; 8. fry tray; 9. connecting frame; 10. water tank; 11. water pump; 12. connecting pipe; 13. mounting frame; 14. visual detection and shooting device; 15. fixed plate; 16. movable plate; 17. buffer plate; 18. first gear; 19. tooth groove; 20. boom; 21. rotating tube; 22. brush; 23. water outlet; 24. movable grid; 25. guide plate; 26. connecting rod; 27. fixed rod; 28. second gear; 29. ​​movable groove; 30. threaded rod; 31. control block; 32. drainage groove; 33. connecting seat. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Reference Figure 1 - Figure 6 The invention discloses an automatic fry counting device for aquaculture vessels, comprising a support frame 1, a storage compartment 2 is fixedly installed on the top of the support frame 1, a conveyor belt 7 is arranged below the right end of the storage compartment 2, fixed frames 3 are arranged on both sides of the conveyor belt 7, the conveyor belt 7 is movably installed on the fixed frame 3, a driving motor 4 is fixedly installed on the fixed frame 3 at one end corresponding to the conveyor belt 7, the output end of the driving motor 4 is fixedly connected to the roller on one side of the conveyor belt 7, fry trays 8 are evenly and equidistantly arranged on the conveyor belt 7, a connecting seat 33 is fixedly installed at the bottom of the fry tray 8, the connecting seat 33 is fixedly installed on the conveyor belt 7, and a buffer plate 17 is fixedly installed at the right side of the fixed frame 3 corresponding to the end of the conveyor belt 7.

[0033] In this embodiment, a rotating block 5 is movably installed on the right end side wall of the storage compartment 2 at a position corresponding to the fry tray 8, a material taking trough 6 is provided on the side wall of the rotating block 5, a connecting rod 26 is fixedly installed on the left side of the rotating block 5, the connecting rod 26 is movably installed in the side wall of the storage compartment 2, the left end of the connecting rod 26 penetrates the top of the storage compartment 2 and is fixedly installed with a first gear 18, a fixed plate 15 is fixedly installed on the left side of the connecting seat 33 at a position corresponding to the first gear 18, a movable plate 16 is fixedly installed on the fixed plate 15, and tooth grooves 19 are provided on the upper and lower sides of the movable plate 16, and the first gear 18 is meshed with the tooth grooves 19 above the movable plate 16 A guide plate 25 is fixedly installed at the position corresponding to the rotating block 5 on the storage cabin 2. The driving motor 4 is started to drive the conveyor belt 7 to rotate, and the conveyor belt 7 can drive the fry tray 8 to move. When the fry tray 8 moves to the lower right end of the storage cabin 2, the top of the movable plate 16 on the left side of the connecting seat 33 will mesh with the first gear 18, and the movable plate 16 will drive the first gear 18 to rotate one circle. The first gear 18 will drive the rotating block 5 to rotate through the connecting rod 26. When the feeding trough 6 on the rotating block 5 turns to the storage cabin 2, the fry will enter, and then when the feeding trough 6 on the rotating block 5 turns out, the fry inside will fall onto the guide plate 25.

[0034] In the present embodiment, a connecting frame 9 is fixedly installed in the middle position of the fixing frame 3, a water tank 10 is fixedly installed on the top of the connecting frame 9, a rotating tube 21 is provided in the middle of the connecting frame 9 at a position corresponding to the fry tray 8, a suspension arm 20 is provided at both ends of the rotating tube 21, and the rotating tube 21 is movably installed on the suspension arm 20, a fixing rod 27 is fixedly installed on the left end of the rotating tube 21, and the left end of the fixing rod 27 penetrates the suspension arm 20 and extends at the position corresponding to the movable plate 16, a second gear 28 is fixedly installed on the top of the left end of the fixing rod 27, and the second gear 28 is meshed with the tooth groove 19 at the bottom of the movable plate 16, brushes 22 are fixedly installed on the upper and lower sides of the rotating tube 21, and water outlet holes 23 are evenly and equidistantly opened on the side wall of the water outlet hole 23, and the right end of the rotating tube 21 is movably connected with the connecting tube 12, and the connecting tube 12 A water pump 11 is provided at the other end, and the water pump 11 is fixedly mounted on the connecting frame 9. The connecting pipe 12 is connected to the output end of the water pump 11, and the input end of the water pump 11 is fixedly connected to the bottom of the water tank 10. When the fry tray 8 moves, the bottom of the movable plate 16 on the fixed plate 15 will mesh with the second gear 28. At this time, the second gear 28 will drive the rotating tube 21 to rotate continuously, and the brush 22 on the rotating tube 21 will continuously sweep the fry in the fry tray 8, so that the fry can be evenly distributed in the fry tray 8. At the same time, the water pump 11 will extract water in the water tank 10 and transport it to the rotating tube 21, and then it will be sprayed into the fry tray 8 through the water outlet 23 on the rotating tube 21. When water is added to the fry tray 8, the water flow can further disperse the fry in the fry tray 8, thereby achieving the effect of facilitating subsequent counting.

[0035] In the present embodiment, a movable grid 24 is movably installed in the middle of the fry tray 8, a movable groove 29 is provided on the inner wall of the fry tray 8, a threaded rod 30 is movably installed in the movable groove 29, a control block 31 is provided at a position corresponding to the threaded rod 30 on the outer side of the fry tray 8, the top of the threaded rod 30 penetrates the fry tray 8 and is fixedly connected with the control block 31, the side wall of the movable grid 24 is threadedly connected to the threaded rod 30, the surfaces of the fry tray 8 and the movable grid 24 are both pure white, the threaded rod 30 can be driven to rotate by rotating the control block 31, and the movable grid 24 can be controlled to rise and fall in the fry tray 8 by the threaded rod 30.

[0036] In this embodiment, a mounting frame 13 is fixedly installed on the top right end of the fixing frame 3, and a visual detection and shooting device 14 is fixedly installed on the top of the mounting frame 13. The visual detection and shooting device 14 can take pictures of the fry tray 8 passing below. After the visual detection and shooting device 14 takes pictures, it will be uploaded to the network, and the non-transparent fry in the photo can be counted through the counting system.

[0037] In this embodiment, a drainage groove 32 is opened on the side wall of the fry tray 8, and excess water in the fry tray 8 can be discharged through the drainage groove 32 on the fry tray 8, thereby preventing the water in the fry tray 8 from directly overflowing and causing the fry to fall onto the conveyor belt 7.

[0038] The method for using the automatic fry counting device for aquaculture vessels comprises the following steps:

[0039] S1: First, the fry to be counted are mixed with water and poured into the storage compartment 2, and then the water tank 10 is filled with water, and then the visual detection and shooting device 14 is started.

[0040] S2: To ensure the accuracy of counting, the depth of the fry tray 8 needs to be adjusted according to the size of the fry to be counted before use. The threaded rod 30 can be driven to rotate by rotating the control block 31, and the movable grid 24 can be controlled to rise and fall in the fry tray 8 by the threaded rod 30. The depth of the fry tray 8 is adjusted to a position where the water inside can just flood the back of the fry, which can prevent the fry from overlapping due to excessive water depth in the fry tray 8 or from bouncing due to stress due to the water being too shallow, affecting the effect of subsequent counting.

[0041] S3: Then the driving motor 4 is started to drive the conveyor belt 7 to rotate, and the conveyor belt 7 can drive the fry tray 8 to move. When the fry tray 8 moves to the lower right end of the storage compartment 2, the top of the movable plate 16 on the left side of the connecting seat 33 will mesh with the first gear 18, and the movable plate 16 will drive the first gear 18 to rotate one circle. The first gear 18 will drive the rotating block 5 to rotate through the connecting rod 26. When the feeding trough 6 on the rotating block 5 is turned into the storage compartment 2, the fry will enter. Then, when the feeding trough 6 on the rotating block 5 is turned out, the fry inside will fall onto the guide plate 25, and the fry will slide into the fry tray 8 through the guide plate 25, thereby achieving the effect of automatically distributing the fry.

[0042] S4: The fry tray 8 is driven to continue to move by the conveyor belt 7. When the fry tray 8 passes under the connecting frame 9, the rotating tube 21 between the connecting frames 9 is above the fry tray 8. When the fry tray 8 moves, the bottom of the movable plate 16 on the fixed plate 15 is meshed with the second gear 28. At this time, the second gear 28 drives the rotating tube 21 to rotate continuously, and the brush 22 on the rotating tube 21 can continuously sweep the fry in the fry tray 8, so that the fry can be evenly distributed in the fry tray 8. At the same time, the water pump 11 can extract the water in the water tank 10 and transport it to the rotating tube 21, and then it can be sprayed into the fry tray 8 through the water outlet 23 on the rotating tube 21. When water is added to the fry tray 8, the water flow can further disperse the fry in the fry tray 8, thereby achieving the effect of facilitating subsequent counting. At the same time, the excess water in the fry tray 8 can be discharged through the drainage groove 32 on the fry tray 8, so as to avoid the water in the fry tray 8 directly overflowing and causing the fry to fall onto the conveyor belt 7.

[0043] S5: Then the conveyor belt 7 continues to drive the fry tray 8 to move. When the fry tray 8 passes directly under the visual detection and shooting device 14, the visual detection and shooting device 14 will take a photo of the fry tray 8. Then the visual detection and shooting device 14 will upload the taken photo to the counting system. Since the surfaces of the fry tray 8 and the movable grid 24 are both pure white, the non-transparent fry are very obvious in the fry tray 8. The counting system can quickly calculate and record the number of fry in the photo.

[0044] S6: Then the conveyor belt 7 will continue to drive the fry tray 8 to move. When the fry tray 8 moves to the rightmost end of the conveyor belt 7, the fry in the fry tray 8 will fall onto the buffer plate 17, and the fry will be guided to the culture cabin for culture through the buffer plate 17.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and range of equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic fry counting device for aquaculture vessels, comprising a support frame (1), characterized in that: A storage compartment (2) is fixedly mounted on the top of the support frame (1), a conveyor belt (7) is arranged below the right end of the storage compartment (2), fixed frames (3) are arranged on both sides of the conveyor belt (7), the conveyor belt (7) is movably mounted on the fixed frames (3), a driving motor (4) is fixedly mounted on the fixed frame (3) at one end corresponding to the conveyor belt (7), the output end of the driving motor (4) is fixedly connected to a roller on one side of the conveyor belt (7), fry trays (8) are evenly and equidistantly arranged on the conveyor belt (7), a connecting seat (33) is fixedly mounted on the bottom of the fry tray (8), the connecting seat (33) is fixedly mounted on the conveyor belt (7), and a buffer plate (17) is fixedly mounted on the right side of the fixed frame (3) at a position corresponding to the end of the conveyor belt (7).

2. The automatic fry counting device for aquaculture vessels according to claim 1, characterized in that: A rotating block (5) is movably mounted on the right side wall of the storage compartment (2) at a position corresponding to the fry tray (8), and a material taking trough (6) is provided on the side wall of the rotating block (5). A connecting rod (26) is fixedly mounted on the left side of the rotating block (5), and the connecting rod (26) is movably mounted in the side wall of the storage compartment (2). The left end of the connecting rod (26) penetrates through the top of the storage compartment (2) and is fixedly mounted with a first gear (18). A fixed plate (15) is fixedly mounted on the left side of the connecting seat (33) at a position corresponding to the first gear (18), and a movable plate (16) is fixedly mounted on the fixed plate (15). Tooth grooves (19) are provided on the upper and lower sides of the movable plate (16), and the first gear (18) meshes with the tooth grooves (19) above the movable plate (16). A guide plate (25) is fixedly mounted on the storage compartment (2) at a position corresponding to the rotating block (5).

3. The automatic fry counting device for aquaculture vessels according to claim 1 is characterized in that: A connecting frame (9) is fixedly mounted in the middle of the fixing frame (3), a water tank (10) is fixedly mounted on the top of the connecting frame (9), a rotating tube (21) is arranged in the middle of the connecting frame (9) at a position corresponding to the fry tray (8), suspension arms (20) are arranged at both ends of the rotating tube (21), the rotating tube (21) is movably mounted on the suspension arm (20), a fixing rod (27) is fixedly mounted on the left end of the rotating tube (21), the left end of the fixing rod (27) penetrates the suspension arm (20) and extends to a position corresponding to the movable plate (16), a second gear (28) is fixedly mounted on the top of the left end of the fixing rod (27), and the second gear (28) is meshed with a tooth groove (19) at the bottom of the movable plate (16).

4. The automatic fry counting device for aquaculture vessels according to claim 3 is characterized in that: Brushes (22) are fixedly mounted on the upper and lower sides of the rotating tube (21); water outlet holes (23) are evenly and equidistantly opened on the side wall of the water outlet hole (23); a connecting tube (12) is movably connected to the right end of the rotating tube (21); a water pump (11) is arranged at the other end of the connecting tube (12); the water pump (11) is fixedly mounted on a connecting frame (9); the connecting tube (12) is connected to the output end of the water pump (11); and the input end of the water pump (11) is fixedly connected to the bottom of the water tank (10).

5. The automatic fry counting device for aquaculture vessels according to claim 1, characterized in that: A movable net frame (24) is movably installed in the middle of the fry tray (8), a movable groove (29) is provided on the inner wall of the fry tray (8), a threaded rod (30) is movably installed in the movable groove (29), a control block (31) is arranged at a position corresponding to the threaded rod (30) on the outer side of the fry tray (8), the top of the threaded rod (30) penetrates the fry tray (8) and is fixedly connected to the control block (31), the side wall of the movable net frame (24) is threadedly connected to the threaded rod (30), and the surfaces of the fry tray (8) and the movable net frame (24) are both pure white.

6. The automatic fry counting device for aquaculture vessels according to claim 1, characterized in that: A mounting frame (13) is fixedly mounted on the top right end of the fixing frame (3), and a visual detection and shooting device (14) is fixedly mounted on the top of the mounting frame (13). The visual detection and shooting device (14) can take photos of the fry tray (8) passing below. After the visual detection and shooting device (14) takes photos, the photos are uploaded to the network, and the non-transparent fry in the photos can be counted through a counting system.

7. The automatic fry counting device for aquaculture vessels according to claim 1, characterized in that: A drainage groove (32) is provided on the side wall of the fry tray (8).

8. A method for using an automated fry counting device for aquaculture vessels, characterized in that: The automatic fry counting device for aquaculture vessels according to any one of claims 1 to 7 comprises the following steps: S1: The fry to be counted are mixed with water and poured into the storage compartment (2), and then the water tank (10) is filled with water, and then the visual monitoring and shooting device (14) is started. S2: To ensure the accuracy of counting, the depth of the fry tray (8) needs to be adjusted according to the size of the fry to be counted before use. The threaded rod (30) can be driven to rotate by rotating the control block (31). The movable grid (24) can be controlled to rise and fall in the fry tray (8) by the threaded rod (30). The depth of the fry tray (8) is adjusted to a position where the water inside can just flood the back of the fry, so as to prevent the fry from overlapping due to the water being too deep in the fry tray (8) or from bouncing due to stress due to the water being too shallow, which affects the effect of subsequent counting. S3: Then the driving motor (4) is started to drive the conveyor belt (7) to rotate, and the conveyor belt (7) can drive the fry tray (8) to move. When the fry tray (8) moves to the lower right end of the storage compartment (2), the top of the movable plate (16) on the left side of the connecting seat (33) will mesh with the first gear (18), and the movable plate (16) will drive the first gear (18) to rotate one circle. The first gear (18) will drive the rotating block (5) to rotate through the connecting rod (26). When the feeding trough (6) on the rotating block (5) turns to the storage compartment (2), the fry will enter. Then, when the feeding trough (6) on the rotating block (5) turns out, the fry inside will fall onto the guide plate (25), and the fry will slide into the fry tray (8) through the guide plate (25), thereby achieving the effect of automatically distributing the fry. S4: The conveyor belt (7) drives the fry tray (8) to continue to move. When the fry tray (8) passes under the connecting frame (9), the rotating tube (21) between the connecting frames (9) is located above the fry tray (8). When the fry tray (8) moves, the bottom of the movable plate (16) on the fixed plate (15) meshes with the second gear (28). At this time, the second gear (28) drives the rotating tube (21) to rotate continuously, and the hair on the rotating tube (21) is rotated. The brush (22) continuously sweeps the fry in the fry tray (8) so that the fry can be evenly distributed in the fry tray (8). At the same time, the water pump (11) extracts water from the water tank (10) and transports it to the rotating tube (21). The water is then sprayed into the fry tray (8) through the water outlet (23) on the rotating tube (21). When water is added to the fry tray (8), the water flow can further disperse the fry in the fry tray (8), thereby achieving the effect of facilitating subsequent counting. S5: Then the conveyor belt (7) continues to drive the fry tray (8) to move. When the fry tray (8) passes directly below the visual detection and shooting device (14), the visual detection and shooting device (14) will take a photo of the fry tray (8). Then the visual detection and shooting device (14) will upload the photographed photo to the counting system. Since the surfaces of the fry tray (8) and the movable grid (24) are both pure white, the non-transparent fry are very obvious in the fry tray (8). The counting system can quickly calculate and record the number of fry in the photo. S6: Then the conveyor belt (7) will continue to drive the fry tray (8) to move. When the fry tray (8) moves to the rightmost end of the conveyor belt (7), the fry in the fry tray (8) will fall onto the buffer plate (17), and the fry will be guided to the culture cabin for culture through the buffer plate (17).

Images