Sorting machine for intelligently selecting river crabs

Abstract

The invention discloses a sorting machine for intelligently selecting river crabs in the technical field of river crab sorting, which comprises an upper support frame and a discharging frame, a sorting part is arranged below the discharging frame, a feeding belt is fixedly mounted on the upper support frame, the upper surface of the feeding belt is flush with the upper surface of the sorting part, and the river crabs can be driven to move towards the sorting part; a material limiting assembly is arranged on the side, close to the sorting piece, of the upper surface of the feeding belt. The multiple sets of material limiting units are evenly distributed on the feeding belt. According to the river crab sorting device, the number of river crabs flowing into the sorting piece from the feeding belt is controlled through opening and closing of the material limiting units, it is ensured that the river crabs on the feeding belt can independently pass through the space between the material limiting units, and the river crabs on the feeding belt can pass through the space between the material limiting units; therefore, the river crabs can be uniformly distributed on the sorting piece.

Description

Technical Field

[0001] The present invention relates to the technical field of river crab sorting, and in particular to a sorting machine for intelligent selection of river crabs. Background Art

[0002] The existing crab sorting is roughly based on two screening standards, weight and size. When weight is still used as the screening standard, the screening is mostly assisted by weighing settings. In the existing sorting machines, whether weight or size is used as the screening standard, most of them need to transport the crabs individually to the weighing equipment of the sorting machine to avoid multiple crabs entering the weighing equipment, causing the weighing data to be misplaced, and the sorted crabs do not meet the standards. Therefore, it is necessary to manually deliver the crabs one by one to the weighing bucket of the sorting machine, or manually place the crabs evenly and equidistantly on the conveyor belt, and then use the conveyor belt to transport the evenly distributed crabs to the weighing equipment of the sorting machine to ensure that the crabs can enter the weighing equipment of the crab sorting machine individually. This requires manual assistance in loading the crabs onto the sorting machine, which consumes a lot of manpower and affects the sorting efficiency of the sorting machine. Summary of the invention

[0003] The technical problem of the present invention is to provide a sorting machine for intelligent selection of river crabs, so as to control the number of river crabs flowing into the sorting part through the opening and closing of the limiting unit, to ensure that the river crabs on the feeding belt can pass through the limiting units individually, so that the river crabs can be evenly distributed on the sorting part.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sorting machine for intelligent selection of river crabs, comprising an upper support frame and a lower material frame, wherein the lower material frame and the upper support frame are arranged front and back, and the upper support frame and the lower material frame are connected on both sides by connecting rods; a sorting piece is arranged above the lower material frame, and the sorting piece can slide on the lower material frame, a feeding belt is fixedly installed on the upper support frame, the upper surface of the feeding belt is flush with the upper surface of the sorting piece, and can drive the river crabs to move toward the sorting piece, and a limited material component is arranged on the upper surface of the feeding belt close to the sorting piece; The limiting units are multiple groups and are evenly distributed on the feeding belt. Each group of limiting units is composed of two adjacent feeding baffles, which are rotatably connected to the feeding belt through a torsion spring. The feeding baffles of the limiting units can be automatically opened and closed with the sliding of the sorting member. In a natural state, the two groups of adjacent feeding baffles in the limiting units are parallel to each other, and a single crab is allowed to pass between adjacent limiting units. A support block is rotatably connected between the two groups of feeding baffles of the material limiting unit, and the support block is set to two states of horizontal and vertical. When the support block is in the horizontal state, the two groups of feeding baffles of the material limiting unit can be expanded to both sides, and when the support block is in the vertical state, the two groups of feeding baffles of the material limiting unit can be parallel to each other. A transmission assembly is arranged between the support block and the sorting part, and the transmission assembly can drive the support block to rotate while driving the sorting part to slide.

[0005] As a further scheme of the present invention, the sorting component is provided with a movable groove, an intermediate shaft is rotatably installed in the middle position of the movable groove, sorting plates are symmetrically installed on both sides of the intermediate shaft, a plurality of groups of sorting holes are evenly arranged on the sorting plate, the sorting holes are all between the limiting units, and a limiting partition is fixedly installed on one side of the sorting plate. The two groups of limiting partitions on the sorting plates are arranged on opposite sides, and the limiting partitions are arranged on both sides of the sorting holes. The limiting partitions divide the sorting plates into a plurality of uniform sorting bins, and a weighing sensor is arranged at the bottom of each group of sorting bins and has a group of sorting holes. River crabs that are too small can fall into the unloading rack through the sorting holes.

[0006] As a further solution of the present invention, the material cutting rack is provided with preferred material cutting parts and defective material cutting parts, and the upper ends of the preferred material cutting parts and the defective material cutting parts are vertically distributed to the intermediate axis. The preferred material cutting parts can transport qualified river crabs downward to the processing line of qualified river crabs, and the defective material cutting parts can transport defective river crabs downward to the processing line of defective river crabs.

[0007] As a further solution of the present invention, the transmission assembly includes a half gear, an inclined table and a tooth plate. The tooth plate is slidably connected to the upper support frame and the lower surface is attached to the upper surface of the loading baffle. The tooth plate can limit the movement of river crabs transported by the loading belt from the upper side of the loading baffle to the direction of the sorting part. The support blocks are fixedly mounted with mounting rods, and the upper ends of the mounting rods are fixedly mounted with limiting gears, which are meshed with the tooth plate.

[0008] As a further solution of the present invention, the half gear is rotatably mounted on one side of the upper support frame, a sorting gear is fixedly mounted on one end of the intermediate shaft, an oscillating gear is rotatably mounted on the upper end of the upper support frame, and both the oscillating gear and the sorting gear can engage with the tooth portion of the half gear.

[0009] As a further solution of the present invention, a connecting frame is fixedly installed on the lower end of the inclined circular table, one side of the lower end of the connecting frame is slidably connected to the upper support frame, and one side is fixedly connected to the sorting member, the side of the inclined circular table close to the upper support frame is an inclined surface and is provided with a curved groove, a traction rod is provided in the curved groove, a driven disk is fixedly installed on the other end of the traction rod, a driven gear is fixedly installed on the driven disk, the driven gear is rotatably connected to the upper support frame, and the connecting frame is fixedly connected to one end of the tooth plate.

[0010] As a further solution of the present invention, a mounting shaft is rotatably installed on the upper support frame corresponding to the position between the driven gear and the oscillation gear, a limiting member is fixedly installed on the mounting shaft, an incomplete gear is fixedly installed on one end of the limiting member close to the driven gear, the incomplete gear is meshed with the driven gear, and an embedding rod is provided at the edge of the active disk, and the embedding rod can be embedded in the limiting member.

[0011] As a further solution of the present invention, a rotating motor is fixedly mounted on the upper support frame, and an output end of the rotating motor is fixedly connected to the half gear.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Improve sorting efficiency: Through the joint design of the limiting component and the sorting part, it is ensured that only a single crab enters the sorting part at a time. This precise sorting method avoids the mutual squeezing of crabs and ensures that each crab can smoothly enter the sorting bin for weighing and classification, thereby improving the sorting efficiency. Multiple crabs can accurately enter the sorting part at the same time, reducing the need for manual intervention.

[0013] Precise sorting and automated control: The design of the sorting plates, weighing sensors, limit baffles and other components in the sorting unit enables crabs to be accurately sorted according to their size and weight. The weighing sensor can effectively weigh the crabs in real time, ensuring the accurate separation of qualified and unqualified crabs, improving the accuracy and automation of sorting, and reducing the errors caused by manual operation.

[0014] Effectively solve the crab blockage problem: The design of the limiting unit, through the linkage of the adjustable baffle system and the support block, not only ensures that only a single crab passes through each time, but also prevents too many crabs from piling up, avoiding blockage problems. This makes the sorting machine run more smoothly, reduces the failure rate, and extends the service life of the equipment.

[0015] Transmission assembly and oscillation system: The linkage design of the oscillating gear and the toothed plate effectively drives the oscillation of the sorting part, so that unqualified crabs can fall in time, avoiding inaccurate sorting or reduced efficiency caused by crab retention. In addition, the support block driven by the transmission assembly can adjust the baffle to the appropriate position, ensuring that the sorting machine can operate accurately during each sorting process.

[0016] Precise diversion and material removal design: By setting preferred material removal parts and defective material removal parts, qualified and unqualified river crabs can be sent to different processing lines respectively. This diversion design not only improves the degree of automation of production, but also reduces the workload of manual classification, which helps to make the production process efficient and orderly.

[0017] Flexible adjustment and stability: The design of the tilted round table and curved slot allows the sorting parts to be flexibly adjusted in the horizontal direction, further improving the adaptability and stability of the sorting parts. Through the precise control of the motor and drive device, the entire equipment can operate stably under different working conditions, ensuring that the sorting process is not affected by changes in the external environment.

[0018] Intelligent and automatic control: The sorting machine adopts an intelligent control system, which can automatically adjust the working state and achieve efficient sorting and classification. The combination of electric drive system, transmission components, oscillation device, etc. realizes full automatic operation, reduces dependence on manual labor, and greatly improves production efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention from the right side viewing angle; Figure 3 For the present invention Figure 2 A partial schematic diagram of the structure at A in the middle; Figure 4 For the present invention Figure 2 A partial schematic diagram of the structure at B in the middle; Figure 5 It is a schematic diagram of the structure of the present invention from the left side viewing angle; Figure 6 For the present invention Figure 5 A partial schematic diagram of the structure at C in the middle; Figure 7 It is a cross-sectional view of the mechanism of the present invention; Figure 8 It is a cross-sectional view of the sorting member of the present invention; Fig. 9 It is a schematic diagram of the present invention.

[0021] In the attached drawings: 1. upper support frame; 2. unloading frame; 201. preferred unloading parts; 202. defective unloading parts; 3. sorting parts; 4. movable groove; 5. feeding belt; 6. connecting frame; 7. tooth plate; 8. inclined frustum; 9. intermediate shaft; 10. sorting plate; 11. limiting partition; 12. sorting hole; 13. feeding baffle; 14. support block; 15. limiting gear; 16. mounting rod; 17. sorting gear; 18. half gear; 19. driven disk; 20. oscillating gear; 21. driving disk; 22. traction rod; 23. incomplete gear; 24. limiting part; 25. curved groove; 26. mounting shaft; 27. driven gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-Figure 9 The intelligent crab sorting sorting machine provided by the present invention comprises an upper support frame 1 and a lower material frame 2. A sorting component 3 is arranged above the lower material frame 2. The sorting component 3 can slide left and right on the lower material frame 2. A feeding belt 5 is fixedly installed on the upper support frame 1. The upper surface of the feeding belt 5 is flush with the upper surface of the sorting component 3 and can drive the crabs to move toward the sorting component 3. A limited material component is arranged on the side of the upper surface of the feeding belt 5 close to the sorting component 3.

[0024] The material limiting unit 13 can automatically open and close as the sorting member 3 moves left and right. In a natural state, two groups of adjacent feeding baffles 13 in the material limiting unit are parallel to each other. At this time, a single crab is allowed to pass between adjacent material limiting units.

[0025] The support block 14 is rotatably connected between the two groups of feeding baffles 13 of the material limiting unit. The support block 14 is set to have two states, horizontal and vertical. When the support block 14 is in the horizontal state, the two groups of feeding baffles 13 of the material limiting unit can be expanded to both sides. When the support block 14 is in the vertical state, the two groups of feeding baffles 13 of the material limiting unit can be parallel to each other. A transmission assembly is arranged between the support block 14 and the sorting part 3, and the transmission assembly can drive the support block 14 to rotate while driving the sorting part 3 to move left and right.

[0026] During operation, the crabs in the present invention are moved toward the sorting part 3 by the feeding belt 5, and the crabs fall onto the sorting part 3. The crabs are weighed and sized by the sorting part 3 to complete the sorting of the crabs. When the crabs flow toward the sorting part 3, the crabs are blocked by the limiting unit. When the feeding baffle 13 of the limiting unit is in a parallel state, a single crab can pass between the limiting units and flow toward the sorting part 3. When the feeding baffle 13 of the limiting unit is in an expanded state (such as Figure 4 As shown in the figure, the crabs on the feeding belt 5 are blocked by the feeding baffle 13 and cannot flow to the sorting part 3. When the transmission component drives the sorting part 3 to slide left and right, the crabs on the sorting part 3 are oscillated, so that the unqualified crabs on the sorting can fall quickly. At the same time, the transmission component drives the support block 14 to rotate back and forth, and the support block 14 rotates from a horizontal state to a vertical state, so that the feeding baffles 13 of the limiting unit are mutually horizontal, so that the crabs pass between the limiting units, and then the support block 14 rotates to a horizontal state again, so that the feeding baffles 13 of the limiting unit are expanded to both sides, and the passages between the limiting units are blocked by the feeding baffle 13 to limit the subsequent crabs from passing through the limiting units, ensuring that only a single crab passes through the limiting unit each time, thereby ensuring that the crabs enter the sorting part 3 evenly and quantitatively, avoiding the trouble of manually assisting the crab feeding, so that multiple single crabs can accurately enter the sorting part 3 at the same time, thereby improving the sorting efficiency.

[0027] In the present invention, the support block 14 rotates from a horizontal state to a vertical state, so that the feeding baffles 13 of the limiting unit are mutually horizontal, so that the river crabs can pass through the limiting units, and then the support block 14 rotates to a horizontal state again, so that the feeding baffles 13 of the limiting unit are expanded to both sides, and the passages between the limiting units are blocked by the feeding baffles 13 to limit the subsequent river crabs from passing through the limiting units, ensuring that only a single river crab passes through the limiting unit each time, thereby ensuring that the river crabs enter the sorting part 3 evenly and quantitatively, avoiding the trouble of manually assisting the crab feeding, so that multiple single river crabs can accurately enter the sorting part 3 at the same time, thereby improving the sorting efficiency.

[0028] The sorting component 3 is provided with a movable groove 4, and an intermediate shaft 9 is rotatably installed in the middle position of the movable groove 4. Sorting plates 10 are symmetrically installed on both sides of the intermediate shaft 9. A plurality of groups of sorting holes 12 are evenly arranged on the sorting plate 10, and the sorting holes 12 are all located between the limiting units. A limiting partition 11 is fixedly installed on one side of the sorting plate 10. The limiting partitions 11 on the two groups of sorting plates 10 are arranged on opposite sides, and the limiting partitions 11 are arranged on both sides of the sorting holes 12. The limiting partitions 11 divide the sorting plate 10 into a plurality of uniform sorting bins. A weighing sensor is arranged at the bottom of each group of sorting bins and each group of sorting bins has a group of sorting holes 12. River crabs that are too small can fall into the unloading rack 2 through the sorting holes 12.

[0029] During operation, a single river crab passes through the limiting units, so that the single river crab can accurately fall into the sorting bin of the sorting component. The weighing sensor weighs the single river crab in the sorting bin, and the qualified river crab is larger than the sorting hole 12, and the unqualified river crab is smaller than the sorting hole. When the river crab falls onto the sorting plate 10 under the action of the feeding belt 5, the unqualified river crab falls from the sorting hole 12 under the action of the left and right sliding of the sorting component 3.

[0030] The blanking rack 2 is provided with preferred blanking parts 201 and defective blanking parts 202. The upper ends of the preferred blanking parts 201 and the defective blanking parts 202 are vertically distributed with the intermediate shaft 9. The preferred blanking parts 201 can transport qualified river crabs downward to the processing line of qualified river crabs, and the defective blanking parts 202 can transport defective river crabs downward to the processing line of defective river crabs.

[0031] During operation, the intermediate shaft 9 of the present invention rotates to drive the sorting plate 10 to rotate. When the crabs just fall onto the sorting plate 10, the sorting plate 10 is located above the defective material blank 202. At this time, the unqualified crabs fall onto the defective material blank 202 through the sorting holes 12. After the screening is completed, the intermediate shaft 9 rotates, and the sorting plate 10 carrying the crabs rotates to the top of the preferred material blank 201. At this time, the limiting partition 11 thereon is at the lower side (such as Figure 8 The left sorting plate 10), the river crabs on the sorting plate 10 all fall onto the preferred unloading piece 201 under the action of gravity, and at the same time, the river crabs passing through the material limiting unit fall onto the sorting plate 10 on the side close to the loading belt 5 under the action of the loading belt 5.

[0032] The transmission assembly includes a half gear 18, an inclined table 8 and a tooth plate 7. The tooth plate 7 is slidably connected to the upper support frame 1 and the lower surface is attached to the upper surface of the loading baffle 13. The tooth plate 7 can limit the movement of river crabs transported by the loading belt 5 from the upper side of the loading baffle 13 to the sorting part 3. The support block 14 is fixedly mounted with a mounting rod 16, and the upper end of the mounting rod 16 is fixedly mounted with a limit gear 15, which is meshed with the tooth plate 7.

[0033] During operation, the toothed plate 7 of the present invention slides and interacts with the limit gear 15, and the toothed plate 7 slides to the left to drive the limit gear 15 to rotate, thereby rotating the mounting rod 16, and then rotating the support block 14 at the bottom of the mounting rod 16 from a horizontal state to a vertical state (such as Fig. 9 Then the tooth plate 7 slides to the right to drive the limit gear 15 to rotate in the opposite direction, so that the support block 14 returns to the horizontal state (as shown in the right side of the figure). Fig. 9 ).

[0034] The half gear 18 is rotatably mounted on one side of the upper support frame 1, a sorting gear 17 is fixedly mounted on one end of the intermediate shaft 9, an oscillating gear 20 is rotatably mounted on the upper end of the upper support frame 1, and both the oscillating gear 20 and the sorting gear 17 can mesh with the toothed portion of the half gear 18.

[0035] During operation, the motor drives the half gear 18 to rotate, and the tooth part of the half gear 18 interacts with the sorting gear 17, thereby driving the intermediate shaft 9 to rotate. The rotation of the intermediate shaft 9 drives the sorting plate 10 to rotate, so that the sorting plate 10 above the defective blanking part 202 is rotated upward to above the preferred blanking part 201.

[0036] A connecting frame 6 is fixedly installed at the lower end of the inclined circular table 8, one side of the lower end of the connecting frame 6 is slidably connected to the upper support frame 1, and one side is fixedly connected to the sorting component 3. The side of the inclined circular table 8 close to the upper support frame 1 is an inclined surface and is provided with a curved groove 25, and a traction rod 22 is provided in the curved groove 25. A driven disk 19 is fixedly installed on the other end of the traction rod 22, and a driven gear 27 is fixedly installed on the driven disk 19. The driven gear 27 is rotatably connected to the upper support frame 1, and the connecting frame 6 is fixedly connected to one end of the tooth plate 7.

[0037] During operation, the driven disk 19 of the present invention rotates forward, and the rotation of the driven disk 19 drives the traction rod 22 to rotate. The traction rod 22 moves in the curved groove 25, thereby driving the inclined table 8 to move away from the upper support frame 1. The driven disk 19 rotates reversely, driving the inclined table 8 to move toward the upper support frame 1, and the movement of the inclined table 8 drives the sorting component 3 to slide left and right through the connecting frame 6.

[0038] An installation shaft 26 is rotatably installed on the upper support frame 1 at a position corresponding to the position between the driven gear 27 and the oscillation gear 20. A limiting member 24 is fixedly installed on the installation shaft 26. An incomplete gear 23 is fixedly installed on one end of the limiting member 24 close to the driven gear 27. The incomplete gear 23 is meshed with the driven gear 27. An embedded rod is provided at the edge of the active disk 21, and the embedded rod can be embedded in the limiting member 24.

[0039] During operation, in the present invention, when the sorting plate 10 rotates to a horizontal state, the tooth portion of the half gear 18 begins to mesh with the oscillating gear 20, and the rotation of the oscillating gear 20 drives the active disk 21 to rotate. The rotation of the active disk 21 causes the limit member 24 to rotate forward and reverse around the mounting shaft 26 through the embedded rod, thereby driving the incomplete gear 23 to rotate forward and reverse. The forward and reverse rotation of the incomplete gear 23 drives the driven gear 27 to rotate forward and reverse, and the rotation of the driven gear 27 drives the driven disk 19 to rotate.

[0040] A rotating motor is fixedly mounted on the upper support frame 1 , and an output end of the rotating motor is fixedly connected to the half gear 18 .

[0041] During operation, the rotating motor drives the half gear 18 to rotate.

[0042] In the present invention, the support block rotates from a horizontal state to a vertical state, so that the feeding baffles of the limiting unit are level with each other, so that the river crabs can pass through between the limiting units, and then the support block rotates to a horizontal state again, so that the feeding baffles of the limiting unit are expanded to both sides, and the passages between the limiting units are blocked by the feeding baffles to limit subsequent river crabs from passing through the limiting units, ensuring that only a single river crab passes through the limiting unit each time, thereby ensuring that the river crabs enter the sorting part evenly and quantitatively, avoiding the trouble of manually assisting the crab feeding, so that multiple single river crabs can enter the sorting part accurately at the same time, thereby improving the sorting efficiency.

[0043] The present invention is characterized by high efficiency, precision, automation and intelligence, can effectively improve production efficiency, reduce manual intervention, and reduce equipment failure rate, and has high application prospects and promotion value.

Claims

1. A crab intelligent sorting machine, comprising an upper support frame (1) and a lower material frame (2), characterized in that: The lower material rack (2) and the upper support rack (1) are arranged front and back, and the upper support rack (1) and the lower material rack (2) are connected at both sides by connecting rods; a sorting component (3) is arranged above the lower material rack (2), and the sorting component (3) is capable of sliding on the lower material rack (2); a feeding belt (5) is fixedly installed on the upper support rack (1); the upper surface of the feeding belt (5) is flush with the upper surface of the sorting component (3), and can drive the crabs to move in the direction of the sorting component (3); a limited material component is arranged on the side of the upper surface of the feeding belt (5) close to the sorting component (3); The limiting units are multiple groups and are evenly distributed on the feeding belt (5), each group of the limiting units is composed of two adjacently arranged feeding baffles (13), the feeding baffles (13) are rotatably connected to the feeding belt (5) via a torsion spring, the feeding baffles (13) of the limiting units can automatically open and close with the sliding of the sorting member (3), and in a natural state, the two groups of adjacently arranged feeding baffles (13) in the limiting units are parallel to each other, and at this time, a single crab is allowed to pass between adjacent limiting units; A support block (14) is rotatably connected between the two groups of feeding baffles (13) of the material limiting unit. The support block (14) is provided with two states, horizontal and vertical. When the support block (14) is in the horizontal state, the two groups of feeding baffles (13) of the material limiting unit can be spread out to both sides. When the support block (14) is in the vertical state, the two groups of feeding baffles (13) of the material limiting unit can be parallel to each other. A transmission component is provided between the support block (14) and the sorting member (3). The transmission component can drive the support block (14) to rotate while driving the sorting member (3) to slide.

2. The intelligent crab sorting machine according to claim 1 is characterized in that: The sorting member (3) is provided with a movable groove (4), an intermediate shaft (9) is rotatably mounted in the middle of the movable groove (4), sorting plates (10) are symmetrically mounted on both sides of the intermediate shaft (9), a plurality of groups of sorting holes (12) are evenly arranged on the sorting plate (10), the sorting holes (12) are all located between the limiting units, a limiting partition (11) is fixedly mounted on one side of the sorting plate (10), the limiting partitions (11) on the two groups of sorting plates (10) are arranged on opposite sides, the limiting partitions (11) are arranged on both sides of the sorting holes (12), the limiting partitions (11) divide the sorting plate (10) into a plurality of evenly spaced sorting bins, a weighing sensor is arranged at the bottom of each group of sorting bins and each group of sorting bins has a group of sorting holes (12), and crabs that are too small can fall into the unloading rack (2) through the sorting holes (12).

3. The intelligent crab sorting machine according to claim 2 is characterized in that: The material discharging rack (2) is provided with a preferred material discharging piece (201) and a defective material discharging piece (202), the upper ends of the preferred material discharging piece (201) and the defective material discharging piece (202) being vertically distributed with respect to the intermediate shaft (9), the preferred material discharging piece (201) being capable of transporting qualified river crabs downward to a processing line for qualified river crabs, and the defective material discharging piece (202) being capable of transporting defective river crabs downward to a processing line for defective river crabs.

4. The intelligent crab sorting machine according to claim 3 is characterized in that: The transmission assembly comprises a half gear (18), an inclined truncated table (8) and a tooth plate (7); the tooth plate (7) is slidably connected to the upper support frame (1) and the lower surface of the tooth plate (7) is in contact with the upper surface of the loading baffle (13); the tooth plate (7) can limit the movement of river crabs transported by the loading belt (5) from the upper side of the loading baffle (13) to the sorting member (3); a mounting rod (16) is fixedly mounted on the support block (14); a limit gear (15) is fixedly mounted on the upper end of the mounting rod (16); and the limit gear (15) is meshed with the tooth plate (7).

5. The intelligent crab sorting machine according to claim 4 is characterized in that: The half gear (18) is rotatably mounted on one side of the upper support frame (1); a sorting gear (17) is fixedly mounted on one end of the intermediate shaft (9); an oscillating gear (20) is rotatably mounted on the upper end of the upper support frame (1); and both the oscillating gear (20) and the sorting gear (17) are capable of meshing with the toothed portion of the half gear (18).

6. The intelligent crab sorting machine according to claim 5 is characterized in that: A connecting frame (6) is fixedly mounted on the lower end of the inclined truncated table (8); one side of the lower end of the connecting frame (6) is slidably connected to the upper support frame (1), and one side is fixedly connected to the sorting member (3); the side of the inclined truncated table (8) close to the upper support frame (1) is an inclined surface and is provided with a curved groove (25); a traction rod (22) is provided in the curved groove (25); a driven disk (19) is fixedly mounted on the other end of the traction rod (22); a driven gear (27) is fixedly mounted on the driven disk (19); the driven gear (27) is rotatably connected to the upper support frame (1); and the connecting frame (6) is fixedly connected to one end of the toothed plate (7).

7. The intelligent crab sorting machine according to claim 6 is characterized by: A mounting shaft (26) is rotatably mounted on the upper support frame (1) at a position corresponding to between the driven gear (27) and the oscillating gear (20); a limiting member (24) is fixedly mounted on the mounting shaft (26); an incomplete gear (23) is fixedly mounted on one end of the limiting member (24) close to the driven gear (27); the incomplete gear (23) is meshed with the driven gear (27); an embedding rod is provided on the edge of the active disk (21); the embedding rod can be embedded in the limiting member (24).

8. The intelligent crab sorting machine according to claim 7 is characterized in that: A rotating motor is fixedly mounted on the upper support frame (1), and an output end of the rotating motor is fixedly connected to the half gear (18).

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