Eel sorting and counting device

Abstract

The invention discloses an eel sorting and counting device, belonging to the field of sorting equipment; the device comprises a frame, a storage box, and a barrier component; a screening mechanism is arranged inside the storage box, a toggling mechanism for toggling eels is arranged inside the storage box, and a classification counting mechanism for counting sorted eels is arranged at the bottom of the storage box; when performing eel sorting, the application drives a first screening plate to vibrate at a preset frequency by a vibrator, preliminarily disperses the eel group to avoid local jamming, and starts the toggling mechanism at the same time, so that the toggling rake disperses the eels accumulated on the first screening plate, so that the eels with smaller volumes fall into the collecting volume at the bottom of the storage box; and to ensure sorting accuracy, a gear belt is used to drive the driven toggling component to rotate, and the secondary sorting and tertiary sorting of the eels are performed in sequence, so as to avoid the situation that eels of different sizes are mixed and accumulated together and sorting errors are caused without sufficient screening.

Description

Technical Field

[0001] The present invention relates to the technical field of sorting equipment, and more specifically, to an eel sorting and counting device. Background Art

[0002] In the field of aquaculture and fishery processing, eel sorting and counting are important links. With the development of eel farming, the demand for accurate management and efficient processing of eels is increasing. Accurately grading eels by size can help improve the efficiency of eel farming. For example, eels of different sizes may require different breeding environments and feed inputs. Accurate counting is of great significance in the sales and inventory management of eels, which can ensure accurate statistics of the number and avoid economic losses and management chaos.

[0003] In the existing eel processing technology, there are already some devices for sorting or counting. For example, there are some traditional mechanical sorting devices that use structures such as grids with different apertures to classify eels by size. However, due to the soft body and irregular shape of eels, they may get stuck in the middle of the grid or be misjudged, resulting in low sorting accuracy, and may also cause eels of different sizes to mix together, affecting subsequent breeding management or processing operations; in addition, some existing sorting and counting devices are often operated separately, lacking an integrated device that can efficiently complete the sorting and counting of eels at the same time. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an eel sorting and counting device to solve the above technical problems.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] An eel sorting and counting device comprises a frame, a storage box is fixedly installed inside the frame, a spiral centrifugal pump is installed on one side of the outer surface of the storage box, and a delivery pipe is fixedly connected to the output end of the spiral centrifugal pump; a screening mechanism for sorting eels of different sizes is arranged inside the storage box, and a vibrator fixedly connected to the storage box is arranged on one side of the upper surface of the screening mechanism, a toggle mechanism for moving eels is arranged inside the storage box, a blocking component for blocking unsorted eels from flowing to the screening mechanism at different positions is also arranged inside the storage box, and a classification counting mechanism for counting sorted eels is arranged at the bottom of the storage box;

[0007] Among them, the toggle mechanism includes a main toggle assembly arranged inside the storage box, the main toggle assembly includes a limit rod fixedly connected to the inside of the storage box, a two-way threaded rod is arranged inside the storage box on the same horizontal plane as the limit rod, and a servo motor fixedly connected to the storage box is arranged at one end of the two-way threaded rod, sliding seats threadedly connected to the two-way threaded rod are arranged at both ends of the outer circular surface of the limit rod, a toggle rake for toggling the eel movement is fixedly connected to the bottom of the sliding seat, the toggle rake is made of silicone material with a Shore hardness of 40A, a fixing plate for partition is fixedly connected to the middle of the limit rod, and a second gear is fixedly connected to the side of the two-way threaded rod close to the servo motor.

[0008] As a further solution of the present invention: the toggle mechanism also includes a driven toggle assembly having the same structure and function as the main toggle assembly, and a gear belt for transmission is commonly provided between the driven toggle assembly and the main toggle assembly, and the gear belt is meshed and connected with the second gear for transmission; the screening mechanism includes a first screening plate, a second screening plate, and a third screening plate obliquely placed inside the storage box, the first screening plate, the second screening plate, and the third screening plate are fixedly connected, and slots are provided at the connection points of the first screening plate, the second screening plate, and the third screening plate, and the output end of the vibrator is fixedly connected to the first screening plate.

[0009] As a further solution of the present invention: the structures and functions of the first screen plate, the second screen plate and the third screen plate are the same, a material discharge slot is opened inside the first screen plate, and a linearly arranged fixing rod is fixedly connected inside the material discharge slot, and a roller is sleeved on the outer circular surface of the fixing rod, but the size of the roller arranged inside the second screen plate and the third screen plate is reduced successively to ensure that the screening slots formed inside the first screen plate, the second screen plate and the third screen plate are increased successively.

[0010] As a further solution of the present invention: the barrier assembly includes a partition fixedly connected to the bottom of the storage box, both sides of the partition are provided with electric telescopic rods fixedly connected to the storage box, the top of the electric telescopic rod is fixedly connected to a blocking frame, the blocking frame is slidably connected in the card slot to further separate the first screen plate, the second screen plate, and the third screen plate, and the interior of the blocking frame is provided with an accommodating groove for accommodating the partition.

[0011] As a further solution of the present invention: the partitions are arranged in sequence just below the card slots, and the storage box is divided into a plurality of sorting areas by the partitions to cooperate with the classification and counting mechanism to sort the eels.

[0012] As a further solution of the present invention: a driving mechanism is also provided inside the storage box, and the driving mechanism includes a U-shaped fixing frame fixedly connected to one side of the outer surface of the storage box, the front and rear sides of the outer surface of the storage box are fixedly connected to a limiting plate, a tooth plate is provided directly above the limiting plate, a clamping sleeve slidably connected to the limiting plate is provided at the bottom of the tooth plate, a connecting frame is fixedly connected to the upper surface of the tooth plate, and a hydraulic pull rod is hinged between the connecting frame and the U-shaped fixing frame.

[0013] As a further solution of the present invention: an auxiliary component is also arranged inside the storage box for use in conjunction with the driving mechanism to assist in eel sorting, the auxiliary component includes a rotating rod rotatably connected to the inside of the storage box, a distribution roller is fixedly connected to the outer cylindrical surface of the rotating rod, the surface of the distribution roller is provided with arc-shaped distribution fins with a height of 8-12mm, both ends of the rotating rod are provided with limit seats fixedly connected to the storage box, and both ends of the outer cylindrical surface of the rotating rod are also provided with first gears meshing with the tooth plate.

[0014] As a further solution of the present invention: the classification and counting mechanism includes a sorting box fixedly connected to the bottom of the storage box, the bottom of the sorting box is fixedly connected to a flow tube, the output port of the flow tube is fixedly connected to a spiral guide tube, and a photoelectric sensor is installed on the top of the outer surface of the spiral guide tube.

[0015] As a further solution of the present invention: the inner wall of the spiral guide tube is coated with a polytetrafluoroethylene coating, and a drainage groove is opened at the spiral bottom of the spiral guide tube to automatically discharge mucus by utilizing the centrifugal force of the eel's sliding.

[0016] As a further solution of the present invention: a recycling port is opened at the lower right corner of the bottom of the storage box, and a circulation box is fixedly connected to the position of the recycling port. A conveying rack is installed on the rear side of the frame, and a receiving platform is fixedly connected to the top of the conveying rack to convey the missed eels for further sorting.

[0017] Compared with the prior art, the above technical solution provided by the present invention has at least the following beneficial effects:

[0018] (1) This scheme is provided with a screening mechanism, a vibrator, a toggle mechanism, and a classification and counting mechanism. When sorting eels, the vibrator is used to drive the first screening plate to vibrate at a preset frequency, and the mechanical vibration wave is used to break the eel accumulation state, preliminarily disperse the eel group, and avoid local jamming. At the same time, the toggle mechanism is started, so that the toggle rake is toggled back and forth on the first screening plate to imitate the process of manually toggling eels to disperse the eels accumulated on the first screening plate, so that the eels with a volume smaller than the screening slot inside the first screening plate fall into the collection cavity at the bottom of the storage box. In order to ensure the sorting accuracy, the gear belt is used to drive the driven toggle assembly to rotate, and the eels flowing to the second screening plate and the third screening plate are sequentially sorted by secondary and tertiary sorting, so as to avoid the situation where eels of different sizes are mixed and piled together without sufficient screening and cause sorting errors.

[0019] (2) A screening mechanism and a barrier component are provided, and the barrier component is used to monitor the number of eels in each sorting area in real time. When a certain area reaches a preset threshold, the electric telescopic rod is started to extend, and the blocking frame is pushed to rise vertically along the card slot, closing the current screening area to form a physical isolation; after the eels on the first screening plate are sorted, the electric telescopic rod is started again to shrink, so that the blocking frame is automatically reset, and then the eels left after the first-level sorting slide to the second screening plate and the third screening plate in turn for the second and third-level sorting operations, thereby completing the sorting of eels of different sizes and ensuring the eel sorting effect and accuracy.

[0020] (3) By setting up a classification and counting mechanism, the sorted eels enter the circulation tube through the sorting box at the bottom of the storage box, and the flow rate is controlled by gravity acceleration; the eels slide downward along the spiral track of the spiral guide tube at centrifugal acceleration, and the mucus on the body surface is thrown to the tube wall under the action of centrifugal force; the drainage groove at the bottom of the spiral track is designed with a gradient width to discharge the mucus in a graded manner through centrifugal force; and the photoelectric sensor adopts a dual transmitting-receiving module and is installed on the top of the spiral guide tube at an inclination angle of 30°. When the eels pass through the detection area, the adjacent sensors are triggered by time difference to eliminate bubble interference, and the counting signal is transmitted to the PLC through RS485, and each channel independently stores the counting data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a side view of the present invention;

[0024] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0025] Figure 4 It is a schematic diagram of the connection between the storage box and the driving mechanism of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the screening mechanism of the present invention;

[0027] Figure 6 is an internal cross-sectional view of the storage box of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the barrier component of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the toggle mechanism of the present invention;

[0030] Fig. 9 It is a bottom view of the present invention.

[0031] Reference numerals:

[0032] 1. Frame; 2. Storage box; 3. Screening mechanism; 31. First screening plate; 32. Card slot; 33. Fixing rod; 34. Roller; 35. Second screening plate; 36. Third screening plate;

[0033] 4. Screw centrifugal pump; 5. Delivery pipe; 6. Vibrator;

[0034] 7. Driving mechanism; 71. U-shaped fixing frame; 72. Hydraulic pull rod; 73. Connecting frame; 74. Tooth plate; 75. Limiting plate; 76. Card sleeve; 77. Auxiliary components; 771. Rotating rod; 772. Dividing roller; 773. Limiting seat; 774. First gear;

[0035] 8. barrier assembly; 81. partition; 82. electric telescopic rod; 83. blocking frame; 84. receiving slot;

[0036] 9. Toggle mechanism; 91. Limit rod; 92. Bidirectional threaded rod; 93. Fixed plate; 94. Sliding seat; 95. Toggle rake; 96. Second gear; 97. Servo motor; 98. Gear belt; 99. Driven toggle assembly

[0037] 10. Classification and counting mechanism; 101. Sorting box; 102. Circulation tube; 103. Spiral guide tube; 104. Photoelectric sensor; 105. Drainage trough; 106. Recovery port; 107. Circulation box;

[0038] 11. Conveyor rack; 12. Receiving platform.

[0039] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0040] The following is a detailed description of an eel sorting and counting device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0041] like Figures 1 to 9 As shown, an embodiment of the present invention provides an eel sorting and counting device, comprising a frame 1, a storage box 2 is fixedly installed inside the frame 1, a spiral centrifugal pump 4 is installed on one side of the outer surface of the storage box 2, and a delivery pipe 5 is fixedly connected to the output end of the spiral centrifugal pump 4; a screening mechanism 3 for sorting eels of different sizes is arranged inside the storage box 2, and a vibrator 6 fixedly connected to the storage box 2 is arranged on one side of the upper surface of the screening mechanism 3, a toggling mechanism 9 for toggling eels is arranged inside the storage box 2, and a blocking component 8 for blocking unsorted eels from flowing to the screening mechanism 3 at different positions is also arranged inside the storage box 2, and a classification counting mechanism 10 for counting sorted eels is arranged at the bottom of the storage box 2;

[0042] Among them, the toggle mechanism 9 includes a main toggle assembly arranged inside the storage box 2, the main toggle assembly includes a limit rod 91 fixedly connected to the inside of the storage box 2, a bidirectional threaded rod 92 is arranged inside the storage box 2 on the same horizontal plane as the limit rod 91, and one end of the bidirectional threaded rod 92 is provided with a servo motor 97 fixedly connected to the storage box 2, both ends of the outer cylindrical surface of the limit rod 91 are provided with sliding seats 94 threadedly connected to the bidirectional threaded rod 92, the bottom of the sliding seat 94 is fixedly connected with a toggle rake 95 for toggling the eel movement, and the toggle rake 95 is made of silicone material with a Shore hardness of 40A, a fixed plate 93 for partition is fixedly connected to the middle of the limit rod 91, and a second gear 96 is fixedly connected to the side of the bidirectional threaded rod 92 close to the servo motor 97.

[0043] like Figure 1 , Figure 4 , Figure 5 , Figure 6As shown, the toggle mechanism 9 also includes a driven toggle assembly 99 having the same structure and function as the main toggle assembly, and a gear belt 98 for transmission is commonly provided between the driven toggle assembly 99 and the main toggle assembly, and the gear belt 98 is meshedly connected with the second gear 96 for transmission; the screening mechanism 3 includes a first screening plate 31, a second screening plate 35, and a third screening plate 36 which are obliquely placed inside the storage box 2, the first screening plate 31, the second screening plate 35, and the third screening plate 36 are fixedly connected, and a card slot 32 is provided at the connection between the first screening plate 31, the second screening plate 35, and the third screening plate 36, and the output end of the vibrator 6 is fixedly connected to the first screening plate 31.

[0044] like Figure 4 , Figure 5 As shown, the structures and functions of the first screening plate 31, the second screening plate 35 and the third screening plate 36 are the same. A material discharge slot is opened inside the first screening plate 31, and a linearly arranged fixing rod 33 is fixedly connected inside the material discharge slot. A roller 34 is sleeved on the outer circumferential surface of the fixing rod 33. However, the sizes of the roller 34 arranged inside the second screening plate 35 and the third screening plate 36 are reduced successively to ensure that the screening slots formed inside the first screening plate 31, the second screening plate 35 and the third screening plate 36 are increased successively.

[0045] In order to solve the existing problems that the eels are soft and irregular in shape, which may not only get stuck in the middle of the grid or be misjudged, resulting in low sorting accuracy, but also may cause eels of different sizes to mix together, affecting subsequent breeding management or processing operations, and lack of an integrated device that can efficiently complete the sorting and counting of eels at the same time, the above technical solution is now adopted to solve the problem. The above technical solution is mainly composed of a screening mechanism 3, a vibrator 6, a toggle mechanism 9, and a classification and counting mechanism 10. When sorting eels, firstly, through an external water pipe, the spiral centrifugal pump 4 is started to intermittently pump the eels to be sorted to the conveying pipe 5 and evenly convey them to the surface of the first screening plate 31. The vibrator 6 is started synchronously to drive the first screening plate 31 to vibrate at a preset frequency, and the mechanical vibration wave is used to break the eel accumulation state, preliminarily disperse the eel group, and avoid local stagnation. Since the sizes of the poured eels are inconsistent, some larger ones are easily stuck in the screening notches of the first screening plate 31. At this time, the servo motor 97 can be started at the same time to rotate the bidirectional threaded rod 92, and under the limiting action of the limiting rod 91, the sliding seat 94 moves along the axial direction of the limiting rod 91. Moreover, since the thread directions of the outer cylindrical surface of the bidirectional threaded rod 92 are different, and the corresponding position is provided with a sliding seat 94 adapted to the thread ring, during the process of starting the servo motor 97 for forward and reverse rotation, the sliding seat 94 on the bidirectional threaded rod 92 moves back and forth under the limiting action of the limiting rod 91, so that the moving rake 95 at the bottom of the sliding seat 94 moves back and forth on the first screening plate 31, so as to simulate the process of manually moving the eels to disperse the eels accumulated on the first screening plate 31, and then the eels with a volume smaller than the screening notches inside the first screening plate 31 (i.e., the screening notches formed between adjacent rollers 34) fall into the collecting cavity at the bottom of the storage box 2. In the process of sorting the accumulated eels by using the rake 95, since the eels themselves carry a certain amount of mucus, and in order to protect the eels from damage, the roller 34 is composed of an austenitic stainless steel matrix with a surface roughness Ra≤0.4μm and coated with a food-grade polytetrafluoroethylene coating. Therefore, when the eels pass through the screening notch formed between the two rollers 34, no loss will be caused, thereby ensuring the quality of sorting.After the primary screening by the first screening plate 31, the remaining medium and large eels pass through the first screening plate 31 in turn and flow to the second screening plate 35 and the third screening plate 36. Since the second screening plate 35 and the third screening plate 36 are both provided with the same driven toggle assembly 99 as that on the first screening plate 31, in the process of sorting eels of different sizes, in order to ensure the sorting accuracy, the gear belt 98 is used to drive the driven toggle assembly 99 to rotate, that is, the eels flowing to the second screening plate 35 and the third screening plate 36 are sequentially subjected to secondary sorting and tertiary sorting, so that the medium-sized eels fall from the screening slot of the second screening plate 35 into the storage box 2, and the large eels fall from the screening slot of the third screening plate 36 into the storage box 2, and finally multiple sorting operations are completed, thereby ensuring the sorting accuracy and quality, and avoiding the situation where eels of different sizes are mixed and piled together without sufficient screening and causing sorting errors. As the eel sorting process proceeds, the eels that fall into the storage cavity inside the storage box 2 are counted synchronously by the classification and counting mechanism 10 for the eels of different classifications, thereby improving the sorting and counting of the entire eels.

[0046] like Figure 4 , Figure 6 , Figure 7 As shown, the barrier assembly 8 includes a partition 81 fixedly connected to the bottom of the storage box 2, and electric telescopic rods 82 fixedly connected to the storage box 2 are arranged on both sides of the partition 81. The top of the electric telescopic rod 82 is fixedly connected to a blocking frame 83, and the blocking frame 83 is slidably connected in the card slot 32 to further separate the first screening plate 31, the second screening plate 35, and the third screening plate 36. The interior of the blocking frame 83 is provided with a receiving slot 84 for accommodating the partition 81.

[0047] like Figure 6 , Figure 7 As shown, the partitions 81 are arranged in sequence just below the card slots 32, and the storage box 2 is divided into a plurality of sorting areas by the partitions 81 to cooperate with the classification and counting mechanism 10 to sort the eels.

[0048] When the eel sorting and counting device is in operation, the eels to be sorted are firstly pulsed to the first screening plate 31 by the spiral centrifugal pump 4, and the vibrator 6 drives the screening plate with high-frequency micro-amplitude vibration, and the silicone rake 95 driven by the bidirectional threaded rod 92 reciprocates to comb the eels evenly. At the same time, the barrier component 8 is used to monitor the number of eels in each sorting area in real time: when a certain area reaches a preset threshold (such as 500 eels in the small-sized area), the electric telescopic rod 82 is started to be extended, and the blocking frame 83 is pushed to rise vertically along the card slot 32 to close the current screening area and form a physical isolation; after the eels on the first screening plate 31 are sorted, the electric telescopic rod 82 is started again to shrink, so that the blocking frame 83 is automatically reset, and then the medium and large-sized eels left after the first-level sorting slide to the second screening plate 35 and the third screening plate 36 in turn for secondary and tertiary sorting operations, that is, the medium and large-sized eels are dispersed by the toggle rake 95, so that the medium and large-sized eels fall into the storage box 2 from the screening notches formed by the second screening plate 35 and the third screening plate 36, respectively, thereby completing the sorting of eels of different sizes and ensuring the eel sorting effect and accuracy.

[0049] like Figure 1 , Figure 2 , Figure 3 As shown, a driving mechanism 7 is also provided inside the storage box 2, and the driving mechanism 7 includes a U-shaped fixing frame 71 fixedly connected to one side of the outer surface of the storage box 2, and the front and rear sides of the outer surface of the storage box 2 are fixedly connected to a limiting plate 75, and a tooth plate 74 is provided just above the limiting plate 75. The bottom of the tooth plate 74 is provided with a clamping sleeve 76 that is slidably connected to the limiting plate 75, and the upper surface of the tooth plate 74 is fixedly connected to a connecting frame 73, and a hydraulic pull rod 72 is hinged between the connecting frame 73 and the U-shaped fixing frame 71.

[0050] like Figure 1 , Figure 2 , Figure 3 As shown, the storage box 2 is further provided with an auxiliary component 77 used in conjunction with the driving mechanism 7 to assist in eel sorting. The auxiliary component 77 includes a rotating rod 771 rotatably connected to the storage box 2. A distribution roller 772 is fixedly connected to the outer cylindrical surface of the rotating rod 771. The surface of the distribution roller 772 is provided with an arc-shaped distribution fin with a height of 8-12mm. Both ends of the rotating rod 771 are provided with a limit seat 773 fixedly connected to the storage box 2. Both ends of the outer cylindrical surface of the rotating rod 771 are also provided with a first gear 774 meshingly connected to the tooth plate 74.

[0051] When the rake 95 starts to reciprocate, in order to ensure the conveying and sorting effect of the eels, the PLC synchronously sends a start signal to the hydraulic pull rod 72, and the hydraulic system drives the hydraulic pull rod 72 to extend and retract in a closed-loop control mode. When the hydraulic pull rod 72 contracts, a horizontal pulling force is applied to the tooth plate 74 through the connecting frame 73, and the clamping sleeve 76 at the bottom of the tooth plate 74 slides along the precision guide rail of the limit plate 75, and the reciprocating motion of the tooth plate 74 is converted into the rotational motion of the rotating rod 771 through the meshing first gear 774, and the transmission ratio is designed to be 1:2.5. The arc-shaped distribution fins on the surface of the distribution roller 772 rotate at a speed of 15-25rpm, and the fins and the surface of the screening plate maintain a gap of 5-8mm to form an auxiliary flow channel for eel transportation. The arc-shaped distribution fins cut into the eel group at an inclination angle of 30°, and use the curved surface diversion effect to push the surface eels to the tail of the screening plate to avoid the eels from entanglement and agglomeration.

[0052] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the classification and counting mechanism 10 includes a sorting box 101 fixedly connected to the bottom of the storage box 2, the bottom of the sorting box 101 is fixedly connected to a flow tube 102, the output port of the flow tube 102 is fixedly connected to a spiral guide tube 103, and a photoelectric sensor 104 is installed on the top of the outer surface of the spiral guide tube 103.

[0053] like Figure 2 , Figure 4 , Figure 6 , Fig. 9 As shown, the inner wall of the spiral guide tube 103 is coated with a polytetrafluoroethylene coating, and a drainage groove 105 is opened at the spiral bottom of the spiral guide tube 103 to automatically discharge mucus by utilizing the centrifugal force of the eel's sliding.

[0054] The sorted eels enter the circulation tube 102 through the sorting box 101 at the bottom of the storage box 2, and the flow rate is controlled by gravity acceleration; the eels slide downward along the spiral track of the spiral guide tube 103 at centrifugal acceleration, and the mucus on the body surface is thrown to the tube wall under the action of centrifugal force; the drainage groove 105 at the bottom of the spiral track is designed with a gradient width to discharge the mucus by centrifugal force. The photoelectric sensor 104 uses a dual transmitter-receiver module (wavelength 850nm) and is installed on the top of the spiral guide tube 103 at an angle of 30°; when the eels pass through the detection area, the adjacent sensors are triggered by time difference to eliminate bubble interference, and the counting signal is transmitted to the PLC through RS485, and each channel independently stores the counting data. Since the inner wall of the spiral guide tube 103 is coated with polytetrafluoroethylene coating, the amount of mucus residue is reduced, and the spiral involute design of the drainage groove 105 guides the water flow to form a vortex flushing, combined with the 3-second high-pressure water curtain flushing after each batch, zero residue is achieved.

[0055] like Figure 2 , Figure 6 , Fig. 9 As shown, a recycling port 106 is opened at the lower right corner of the bottom of the storage box 2, and a circulation box 107 is fixedly connected at the position of the recycling port 106. A conveying rack 11 is installed on the rear side of the frame 1, and a receiving platform 12 is fixedly connected to the top of the conveying rack 11 to convey the missed eels for further sorting.

[0056] As for the small amount of eels missed after three sortings, they are moved by the sorting roller 772 and fall from the third screening plate 36 into the recovery chamber at the tail of the storage box 2, and are transported from the recovery port 106 to the conveying rack 11 through the circulation box 107, and then enter the initial sorting area from the receiving platform 12 using the conveying rack 11 for further recovery and sorting, thereby improving the accuracy of sorting.

[0057] When the present invention is used, firstly, the external water pipe is connected to the spiral centrifugal pump 4 to ensure a stable water supply, and then the spiral centrifugal pump 4 is started. The eels to be sorted are pumped intermittently through the delivery pipe 5 in a pulsed manner and evenly placed on the surface of the first screening plate 31. The vibrator 6 is turned on synchronously to drive the first screening plate 31 to vibrate slightly at a preset high frequency to break the eel accumulation state and preliminarily disperse the fish school. For small-sized eels, a first-level screening operation is adopted, that is, by starting the servo motor 97, the bidirectional threaded rod 92 is driven to rotate forward and reverse, and the sliding seat 94 is driven to reciprocate along the axial direction of the limit rod 91. The eels are combed horizontally by a silicone rake 95 to prevent jamming. And the driven toggle assembly 99 is linked by the gear belt 98 to ensure the synchronous operation of the second screening plate 35 and the third screening plate 36. Small-sized eels pass through the screening notch (the gap between adjacent rollers 34) of the first screening plate 31 and fall into the corresponding area of ​​the bottom layer of the storage box 2. When the eels pass through the gap between adjacent rollers 34, the friction damage to the eels is reduced because the surface of the rollers 34 is coated with a food-grade PTFE coating. For medium-sized eels, a two-stage screening operation is adopted, and the eels after the first-stage sorting slide to the second screening plate 35, whose screening notch is larger than the screening notch of the first screening plate 31. The rake 95 is moved to continuously disperse the fish school, and the medium-sized eels fall into the middle-layer storage area through the notch. For large-sized eels, a three-stage screening operation is adopted, and the largest eels flow to the third screening plate 36, and the notch is further expanded, and finally fall into the storage area for large eels. To ensure the eel sorting effect, when a certain area reaches a preset threshold, such as 500 eels in the small-sized area, the electric telescopic rod 82 is started to be extended, and the blocking frame 83 is pushed to rise vertically along the card slot 32 to close the current screening area and form a physical isolation; after the eels on the first screening plate 31 are sorted, the electric telescopic rod 82 is started again to shrink, so that the blocking frame 83 is automatically reset, and then the eels (medium and large-sized eels) left after the first-level sorting slide to the second screening plate 35 and the third screening plate 36 in turn for secondary and tertiary sorting operations, that is, the medium and large-sized eels are dispersed by the toggle rake 95, so that the medium and large-sized eels fall into the storage box 2 from the screening notches formed by the second screening plate 35 and the third screening plate 36, respectively, thereby completing the sorting of eels of different sizes. And in the whole sorting process, the hydraulic pull rod 72 drives the tooth plate 74 to reciprocate horizontally through PLC control, driving the first gear 774 to rotate, so that the rotating rod 771 drives the sorting roller 772 to rotate at 15-25rpm, and the arc-shaped fins are 8-12mm high and push the surface eels at a 30° angle to prevent entanglement and agglomeration. The sorted eels enter the spiral guide tube 103 through the sorting box 101 and slide down under the action of gravity and centrifugal force. The photoelectric sensor 104 detects the passage of eels at a wavelength of 850nm, and the dual module time difference eliminates bubble interference and automatically counts the sorted eels. The eel mucus is centrifuged and discharged through the drain trough 105 of the spiral guide tube 103. After each batch, a 3-second high-pressure water curtain is started to flush the tube wall, and the polytetrafluoroethylene coating ensures zero residue.The unsorted eels enter the recovery port 106 through the tail of the third screening plate 36, pass through the circulation box 107 and are transported to the receiving platform 12 by the conveying rack 11. The missed eels are sent back to the initial sorting area for reprocessing to achieve the eel sorting rate.

[0058] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An eel sorting and counting device, comprising a frame, a storage box is fixedly installed inside the frame, a spiral centrifugal pump is installed on one side of the outer surface of the storage box, and the output end of the spiral centrifugal pump is fixedly connected to a conveying pipe; characterized in that: A screening mechanism for sorting eels of different sizes is arranged inside the storage box, and a vibrator fixedly connected to the storage box is arranged on one side of the upper surface of the screening mechanism, a moving mechanism for moving the eels is arranged inside the storage box, and a blocking component for blocking unsorted eels from flowing to the screening mechanism at different positions is also arranged inside the storage box, and a classification counting mechanism for counting the sorted eels is arranged at the bottom of the storage box; The toggle mechanism includes a main toggle assembly arranged inside the storage box, the main toggle assembly includes a limit rod fixedly connected to the storage box, a bidirectional threaded rod on the same horizontal plane as the limit rod is arranged inside the storage box, and a servo motor fixedly connected to the storage box is arranged at one end of the bidirectional threaded rod, sliding seats threadedly connected to the bidirectional threaded rod are arranged at both ends of the outer cylindrical surface of the limit rod, a toggle rake for toggling the eel is fixedly connected to the bottom of the sliding seat, the toggle rake is made of a silicone material with a Shore hardness of 40A, a fixing plate for partition is fixedly connected to the middle of the limit rod, and a second gear is fixedly connected to the side of the bidirectional threaded rod close to the servo motor; The toggle mechanism also includes a driven toggle assembly having the same structure and function as the main toggle assembly, and a gear belt for transmission is commonly provided between the driven toggle assembly and the main toggle assembly, and the gear belt is meshed and connected with the second gear for transmission; the screening mechanism includes a first screening plate, a second screening plate, and a third screening plate obliquely placed inside the storage box, the first screening plate, the second screening plate, and the third screening plate are fixedly connected, and the connection between the first screening plate, the second screening plate, and the third screening plate is provided with a card slot, and the output end of the vibrator is fixedly connected to the first screening plate; The barrier assembly includes a partition fixedly connected to the bottom of the storage box, both sides of the partition are provided with electric telescopic rods fixedly connected to the storage box, the top of the electric telescopic rod is fixedly connected with a blocking frame, the blocking frame is slidably connected in the card slot to further separate the first screening plate, the second screening plate, and the third screening plate, and a receiving slot for receiving the partition is opened inside the blocking frame; the partitions are arranged in sequence directly below the card slot, and the storage box is divided into a plurality of sorting areas by the partitions to cooperate with the classification and counting mechanism to sort eels; A driving mechanism is also provided inside the storage box, and the driving mechanism includes a U-shaped fixing frame fixedly connected to one side of the outer surface of the storage box, and the front and rear sides of the outer surface of the storage box are fixedly connected to the limit plate, and a tooth plate is provided just above the limit plate, and a clamping sleeve is provided at the bottom of the tooth plate in sliding connection with the limit plate, and a connecting frame is fixedly connected to the upper surface of the tooth plate, and a hydraulic pull rod is hinged between the connecting frame and the U-shaped fixing frame; An auxiliary component is also provided inside the storage box for use in conjunction with the driving mechanism to assist in eel sorting. The auxiliary component includes a rotating rod rotatably connected to the inside of the storage box, a distribution roller is fixedly connected to the outer cylindrical surface of the rotating rod, and an arc-shaped distribution fin with a height of 8-12mm is provided on the surface of the distribution roller. Limit seats fixedly connected to the storage box are provided at both ends of the rotating rod, and first gears meshing with the tooth plate are also provided at both ends of the outer cylindrical surface of the rotating rod.

2. The eel sorting and counting device according to claim 1, characterized in that: The first screening plate, the second screening plate and the third screening plate have the same structure and function. A material discharge slot is opened inside the first screening plate. A linearly arranged fixing rod is fixedly connected inside the material discharge slot. A roller is sleeved on the outer circumference of the fixing rod. However, the sizes of the rollers arranged inside the second screening plate and the third screening plate are reduced successively to ensure that the screening slots formed inside the first screening plate, the second screening plate and the third screening plate are increased successively.

3. The eel sorting and counting device according to claim 2, characterized in that: The classification and counting mechanism comprises a sorting box fixedly connected to the bottom of the storage box, the bottom of the sorting box is fixedly connected to a flow tube, the output port of the flow tube is fixedly connected to a spiral guide tube, and a photoelectric sensor is installed on the top of the outer surface of the spiral guide tube.

4. The eel sorting and counting device according to claim 3, characterized in that: The inner wall of the spiral guide tube is coated with polytetrafluoroethylene, and a drainage groove is opened at the spiral bottom of the spiral guide tube to automatically discharge mucus by using the centrifugal force of the eel's sliding.

5. The eel sorting and counting device according to claim 4, characterized in that: A recycling port is provided at the lower right corner of the bottom of the storage box, and a circulation box is fixedly connected to the recycling port. A conveying rack is installed on the rear side of the frame, and a receiving platform is fixedly connected to the top of the conveying rack to convey the missed eels for further sorting.

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