Sorting device for dry-type litchis

Abstract

The utility model provides a sorting device for dry-type litchis, which relates to the technical field of agricultural equipment and comprises a conveying line, an overturning assembly and an empty box recycling assembly are arranged above the conveying line, one end of the empty box recycling assembly is connected with a recycling conveying assembly, and one end of the conveying line is connected with a large and small screening area. The other end of the large-size screening area is connected with the large-particle color distinguishing area, and the small-particle conveying area is arranged below the large-size screening area and connected with the small-particle color distinguishing area. The litchis screening device has the advantages that the conveying line is arranged in front of the size screening area of litchis, the overturning assembly is arranged above the conveying line, the litchis are conveyed to the overturning assembly through the conveying line, the turnover box filled with the litchis is overturned in two steps through the overturning assembly, the litchis can slide out of the turnover box to the conveying line, and the litchis can be screened conveniently. The process of manually pouring the litchis is omitted, the labor intensity of workers is reduced, the working efficiency of the sorting device is improved, and it is guaranteed that the litchis are not damaged by impact and extrusion in the discharging process.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to a sorting device for dry litchi. Background Art

[0002] Lychee is produced in subtropical regions and is a cultivated fruit tree distributed in Fujian, Taiwan, Zhejiang, Guangdong, Guangxi, Hainan and other places. Lychee is rich in nutrients, containing glucose, sucrose, protein, fat, vitamins A, B, C, etc., and contains various nutrients such as folic acid, arginine, tryptophan, etc., which are very beneficial to human health. Therefore, it is deeply loved by people. There are various varieties of lychees with different prices. The price of large and sweet fruits is higher than that of small fruits. Therefore, fruit farmers will sort the lychees by alignment after picking them, and then set different prices for lychees of different grades according to the quality and color of the fruits. After the lychees are picked from the orchard, they are generally collected in boxes first, and then the whole box of lychees are poured into the sorting equipment for processing. At present, there are many lychee sorting devices on the market, which can sort lychees according to their different sizes and colors, but these devices are generally not equipped with automatic unloading devices, and manual work is required to pour the whole box of lychees into the sorting device. The unloading action requires manual lifting of the whole box of lychees, and this lifting action can easily cause injuries to the operator's waist or hands.

[0003] The technical content disclosed in the Chinese patent document (application number: CN201820368922.1, patent name: A screening and sorting machine suitable for selenium-rich lychees) is: The utility model discloses a screening and sorting machine suitable for selenium-rich lychees, including a device body, a feed port and a tailings outlet. A feed port is provided at the middle of the top of the device body, and the feed port is set on the device body through the device body. A tailings outlet is provided at the lower middle of the device body, and the tailings outlet is set on the device body through the device body. A first-level screening slot is provided above the inside of the device body, and the first-level screening slot is fixedly connected to the device body. This screening and sorting machine suitable for selenium-rich lychees, each screening slot is provided with a size-adjustable, soft sorting hole, and the feed port of each screening slot corresponds to the sorting hole of the next screening slot. At the same time, the multiple screening settings can completely separate lychees of different sizes layer by layer, accurately divide lychees of different sizes into multiple batches, so that the screening is more complete, and the soft sorting holes prevent lychees from being damaged during sorting.

[0004] It can be seen from the above implementation plan that the sorting machine is equipped with multiple screening slots to screen litchi, but is not equipped with an automatic unloading device. Therefore, every time litchi is to be sorted, the operator has to manually lift the entire box of litchi and pour it into the sorting machine. Manual handling of litchi is not only labor-intensive and unsafe, but also has low work efficiency. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art. A conveyor line is arranged before a size screening area for litchi, and a turning assembly is arranged above the conveyor line. An operator only needs to place a whole box of litchis on the conveyor line, and the conveyor line transports the litchis to the turning assembly. The turning assembly turns the turnover box full of litchis in two steps, so that the litchis can slide out of the turnover box and onto the conveyor line, thus saving the process of manually dumping litchis, reducing the labor intensity of workers, improving the working efficiency of the sorting device, and ensuring that the litchis are not damaged by impact and extrusion during the unloading process.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] A sorting device for dried lychees, comprising a conveyor line, a turning assembly and an empty box recovery assembly are arranged above the conveyor line, one end of the empty box recovery assembly is connected to the recovery conveyor assembly, one end of the conveyor line is connected to a size screening area, the other end of the size screening area is connected to a large particle color identification area, a small particle transport area is arranged below the size screening area, and the small particle transport area is connected to the small particle color identification area;

[0008] The flip assembly comprises a first flip mechanism and a second flip mechanism, and the second flip mechanism is hinged to the first flip mechanism;

[0009] The first flipping mechanism clamps and enables the turnover box to be flipped 90 degrees, the second flipping mechanism clamps and enables the turnover box to be flipped another 90 degrees, and the turnover box is flipped 180 degrees after passing through the first flipping mechanism and the second flipping mechanism.

[0010] Furthermore, clamping and rotating blocks are arranged on both sides of the first flipping mechanism, and the clamping and rotating blocks can move up and down and left and right relative to the first flipping mechanism, and the clamping and rotating blocks on both sides of the first flipping mechanism can move toward the middle or separate to both sides;

[0011] The empty box recovery component is provided with a recovery rack, which includes a recovery slope. The second flipping mechanism includes a flipping plate, which can be rotated to the top of the recovery slope. Side clamping blocks are provided on both sides of the flipping plate. The side clamping blocks on both sides of the flipping plate can be moved together to the middle or separated to both sides.

[0012] Furthermore, the size screening area includes a plurality of screening shafts, and screening area guard plates are arranged on both sides of the screening shafts, and the small particle transport area includes a plurality of small particle transport shafts, and small particle transport guard plates are arranged on both sides of the small particle transport shafts;

[0013] The gap between two adjacent screening axes is larger than the gap between two adjacent small particle transport axes;

[0014] The small particle transport guard plate comprises a receiving funnel and a small particle arc-shaped guard plate. The receiving funnel is located directly below the size screening area, and the receiving funnel comprises a receiving straight edge and a receiving oblique edge.

[0015] Furthermore, the conveyor line includes a lifting conveyor line, a roller conveyor line and a receiving conveyor line which are connected in sequence;

[0016] The receiving conveyor line includes a receiving belt, receiving guard plates are arranged on both sides of the receiving belt, and a guard plate entrance oblique position is arranged at one end of the receiving guard plate close to the roller conveyor line;

[0017] The overturning assembly and the empty box recovery assembly are located directly above the receiving conveyor line, and a material transfer channel is formed between the recovery slope and the receiving belt.

[0018] Furthermore, the first flip mechanism is provided with flip installation side plates on both sides, the flip installation side plates are provided with a first module, the first module is provided with a first slide rail on both sides, the first module and the first slide rail are both slidably connected to the second module, the second module is slidably connected to the first clamping cylinder, and the clamping rotation block is connected to the output end of the first clamping cylinder;

[0019] The clamping and rotating block is provided with at least one deformable particle, and the deformable particle is made of a compressible and deformable rubber material.

[0020] Furthermore, both ends of the flip plate are connected to the flip seat bearings, both sides of the flip plate are connected to the second clamping cylinder, the side clamping block is connected to the output end of the second clamping cylinder, and the side clamping block is provided with a clamping strip;

[0021] A starting flip connecting block is provided on the side of the flip plate away from the second clamping cylinder, the starting flip connecting block is connected to the starting flip bearing, the starting flip bearing is connected to the flip connecting rod, both ends of the flip connecting rod are connected to the flip connecting fisheye joint, the flip connecting fisheye joint is connected to the output end of the flip cylinder, the tail end of the flip cylinder is rotationally connected to the flip cylinder seat, and the flip cylinder seat is connected to the flip mounting side plate.

[0022] Furthermore, the large-particle color discrimination area includes at least one main channel and at least one secondary channel, and the main channel and the secondary channel are arranged adjacent to each other.

[0023] Furthermore, a visual recognition camera is arranged above the main path, and visual recognition auxiliary lights are arranged around the visual recognition camera;

[0024] A rotating cylinder is arranged on the side of the visual recognition camera away from the size screening area, and the rotating cylinder is connected to the screening and classification channel;

[0025] The small particle color discrimination area has the same structure as the large particle color discrimination area.

[0026] Furthermore, a recycling rotating drum is provided at one end of the recycling rack away from the recycling slope, and recycling slope guard plates are provided on both sides of the recycling slope;

[0027] A recovery movable clamp mounting tube is arranged above the recovery rack, and a third module and a second slide rail are arranged on the recovery movable clamp mounting tube. The third module and the second slide rail are both movably connected to the recovery lifting cylinder, the recovery lifting cylinder is connected to the recovery clamping cylinder, and the recovery clamping cylinder is connected to the recovery clamping plate.

[0028] Furthermore, the recovery conveying assembly includes a turning roller conveying line and a descending recovery conveying line, the turning roller conveying line is provided with a plurality of recovery rollers, and turning guard plates are provided on both sides of the recovery rollers, and the descending recovery conveying line includes a descending recovery belt, and descending guard plates are provided on both sides of the descending recovery belt;

[0029] The elevated conveyor line includes an elevated belt, and limit guard plates are arranged on both sides of the elevated belt;

[0030] The roller conveyor line is provided with a plurality of first rollers.

[0031] Compared with the prior art, the utility model has the beneficial effect that a conveyor line is arranged before the size screening area for lychees, and a turning assembly is arranged above the conveyor line. The operator only needs to place the whole box of lychees on the conveyor line, and the conveyor line transports the lychees to the turning assembly. The turning assembly turns the turnover box full of lychees in two steps, so that the lychees can slide out of the turnover box onto the conveyor line, saving the process of manually dumping lychees, reducing the labor intensity of workers, improving the working efficiency of the sorting device, and ensuring that the lychees are not damaged by impact and squeezing during the unloading process.

[0032] After the lychees are sorted by size, they are then sorted by color for large and small grades. The large-grain color identification area and the small-grain color identification area can classify lychees of different maturity and transport them separately. By classifying the lychees by size and maturity, they are divided into different grades, achieving the purpose of quickly screening and classifying lychees, shortening the packaging time of lychees, and allowing the lychees to be delivered to consumers in a fresher state. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0034] Figure 1 Overall schematic diagram of automatic sorting device;

[0035] Figure 2 It is a schematic diagram of the conveyor line, the turning assembly, the empty box recovery assembly and the recovery conveyor assembly;

[0036] Figure 3 It is an exploded diagram of the conveyor line, the turning assembly, the empty box recovery assembly and the recovery conveyor assembly;

[0037] Figure 4 This is a first schematic diagram of the flip assembly and the empty box recovery assembly;

[0038] Figure 5 for Figure 4 A is an enlarged schematic diagram of the middle view;

[0039] Figure 6 A second schematic diagram of the flip assembly and the empty box recovery assembly;

[0040] Figure 7 It is a schematic diagram of the state after the second flipping mechanism flips over to the top of the recovery slope;

[0041] Figure 8 A schematic diagram of the second flipping mechanism being inserted into the first flipping mechanism;

[0042] Fig. 9 This is a schematic diagram of the explosion of the second flipping mechanism;

[0043] Fig.10 is a schematic diagram of the structure of the first flipping mechanism;

[0044] Fig.11 It is a schematic diagram of the mechanism for clamping the self-rotating block;

[0045] Fig.12 This is a schematic diagram of the empty box recycling component structure;

[0046] Fig.13 It is a schematic diagram of the structure of the empty box recycling component and the recycling conveying component;

[0047] Fig.14 It is a schematic diagram of the structure of the manual selection area, size screening area, large particle color discrimination area, small particle transportation area and small particle color discrimination area;

[0048] Fig.15 It is a schematic diagram of the manual selection area, size screening area, large particle color discrimination area, small particle transportation area and small particle color discrimination area explosion;

[0049] Fig.16 This is a schematic diagram of the small particle transport guard structure;

[0050] Fig.17 Schematic diagram of the structure of the large particle color discrimination area.

[0051] In the figure: 1. conveyor line; 101. lifting conveyor line; 1011. lifting belt; 1012. limit guard plate; 102. roller conveyor line; 1021. first roller; 103. receiving conveyor line; 1031. receiving belt; 1032. receiving guard plate; 10321. guard plate entrance oblique position; 2. flip assembly; 201. first flip mechanism; 2011. flip mounting side plate; 2012. first module; 2013. first slide rail; 2014. second module; 2015. first clamping cylinder; 2016. clamping self-rotating block ; 20161, deformed particles; 202, second flip mechanism; 2021, flip seat bearing; 2022, flip plate; 2023, second clamping cylinder; 2024, side clamp block; 20241, clamping strip; 2025, flip cylinder seat; 2026, flip cylinder; 2027, flip connecting fisheye joint; 2028, flip connecting rod; 2029, start flip connection block; 20291, start flip bearing; 3, empty box recovery assembly; 301, recovery rack; 3011, recovery ramp; 3012, recovery ramp guard plate; 3013, recovery steering roller; 302, recovery movable clamp installation tube; 303, third module; 304, second slide rail; 305, recovery lifting cylinder; 306, recovery clamp cylinder; 307, recovery clamp; 4, recovery conveying assembly; 401, turning roller conveyor line; 4011, recovery roller; 4012, turning guard plate; 402, descending recovery conveyor line; 4021, descending recovery belt; 4022, descending guard plate; 5, turnover box; 6, manual selection area; 601, manual selection conveyor belt; 602, people 1. Protection plate of the selection area; 2. Protection plate of the selection area; 3. Protection plate of the selection area; 4. Protection plate of the selection area; 5. Protection plate of the selection area for large particles; 6. Protection plate of the selection area for large particles; 7. Protection plate of the selection area for large particles; 8. Protection plate of the selection area for large particles; 9. Protection plate of the selection area for small particles; 10. Protection plate of the selection area for small particles; 11. Protection plate of the selection area for small particles; 12. Protection plate of the selection area for small particles; 13. Protection plate of the selection area for small particles; 14. Protection plate of the selection area for small particles; 15. Protection plate of the selection area for small particles; 16. Protection plate of the selection area for small particles; 17. Protection plate of the selection area for small particles; 18. Protection plate of the selection area for small particles; 19. Protection plate of the selection area for small particles; 20. Protection plate of the selection area for small particles; 21. Protection plate of the selection area for small particles; 22. Protection plate of the selection area for small particles; 23. Protection plate of the selection area for small particles; 24. Protection plate of the selection area for small particles; 25. Protection plate of the selection area for small particles; 26. Protection plate of the selection area for small particles; 27. Protection plate of the selection area for small particles; 28. Protection plate of the selection area for small particles; 29. ​​Protection plate of the selection area for small particles; 30. Protection plate of the selection area for small particles; 31. Protection plate of the selection area for small particles; 32. Protection plate of the selection area for small particles; 33. Protection plate of the selection area for small particles; 34. Protection plate of the selection area for small particles; 35. Protection plate of the selection area for small particles; 36. Protection plate of the selection area for small particles; 37. Protection plate of the selection area for small particles; 38. Protection plate of the selection area for small particles; DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0053] like Figures 1 to 17As shown, a sorting device for dry lychees is used for automatically sorting lychees. The device is also equipped with an automatic unloading function, which reduces the workload of operators and improves the speed of lychee sorting. It includes a conveyor line 1, a flip assembly 2 and an empty box recovery assembly 3 are arranged above the conveyor line 1, one end of the empty box recovery assembly 3 is connected to a recovery conveyor assembly 4, one end of the conveyor line 1 is connected to a manual selection area 6, the other end of the manual selection area 6 is connected to a size screening area 7, the other end of the size screening area 7 is connected to a large particle color identification area 8, a small particle transport area 9 is arranged below the size screening area 7, and the small particle transport area 9 is connected to a small particle color identification area 10; the operator puts the turnover box 5 filled with lychees on the On the conveyor line 1, the conveyor line 1 includes an elevated conveyor line 101, a roller conveyor line 102 and a receiving conveyor line 103 which are connected in sequence; the elevated conveyor line 101 includes an elevated belt 1011, and limit guard plates 1012 are arranged on both sides of the elevated belt 1011; the turnover box 5 filled with lychees is placed on the elevated conveyor line 101, and is transported from the elevated conveyor line 101 to the roller conveyor line 102, from a low place to a high place. When the turnover box 5 passes through the limit guard plate 1012, the limit guard plate 1012 can adjust the left and right positions of the turnover box 5, so that the turnover box 5 can be in the middle when it finally arrives at the flip assembly 2, so that the clamping rotation block 2016 can accurately clamp it.

[0054] The turnover box 5 is turned over by the turning assembly 2 in two steps, so that the lychees are dumped out of the turnover box 5, and the lychees slide onto the receiving conveyor line 3. The empty turnover box 5 is clamped by the empty box recovery assembly 3 and finally recovered by the recovery conveyor assembly 4. The lychees are sent to the manual picking area 6 after passing through the receiving conveyor line 103. The manual picking area 6 includes a manual picking conveyor belt 601. Manual picking area guard plates 602 are arranged on both sides of the manual picking conveyor belt 601. Operators who pick lychees stand on both sides of the manual picking area 6. When the lychees are picked by the manual picking conveyor belt 601, While transporting the lychees forward, the selectors pick out the remaining branches and leaves as well as the damaged lychees in the lychee pile. After passing through the manual selection area 6, the lychees are sent to the size screening area 7. After passing through the size screening area 7, the large-grained lychees are sent to the large-grained color discrimination area 8, while the small-grained lychees are sent to the small-grained color discrimination area 10. The large-grained color discrimination area 8 and the small-grained color discrimination area 10 will select the lychees according to their maturity based on their colors. Therefore, after passing through the lychee automatic sorting device, the lychees are sorted into different grades, which is convenient for sellers to sell.

[0055] The flip assembly 2 includes a first flip mechanism 201 and a second flip mechanism 202, and the second flip mechanism 202 is hinged to the first flip mechanism 201; the first flip mechanism 201 clamps and enables the turnover box 5 to flip 90 degrees, and the second flip mechanism 202 clamps and enables the turnover box 5 to continue to flip 90 degrees. After passing through the first flip mechanism 201 and the second flip mechanism 202, the turnover box 5 is flipped 180 degrees. The first flip mechanism 201 is provided with clamping and rotating blocks 2016 on both sides, and the clamping and rotating blocks 2016 can move up and down and left and right relative to the first flip mechanism 201. The clamping and rotating blocks 2016 on both sides of the first flip mechanism 201 can move toward the middle or separate to both sides; the empty box recovery assembly 3 is provided with a recovery rack 301, and the recovery rack 301 includes a recovery slope 3011. The second flip mechanism 202 includes a flip plate 2022, and the flip plate 2022 can rotate to the top of the recovery slope 3011. The flip plate 2 Side clamping blocks 2024 are arranged on both sides of the flip plate 2022. The side clamping blocks 2024 on both sides of the flip plate 2022 can be moved together or separated to both sides. The flip assembly 2 flips the turnover box 5 filled with lychees in two steps. First, the clamping self-rotating blocks 2024 clamp the turnover box 5 at both ends, and then the clamping self-rotating blocks 2024 move toward the empty box recovery assembly 3 while rising. The clamping self-rotating blocks 2024 can rotate by themselves, so the turnover box 5 gradually realizes a 90-degree flip due to gravity. At this time, the turnover box 5 is The lychees will also be poured onto the conveyor line. Because the turnover box 5 is gradually tilted, the lychees will gradually slide out of the turnover box 5. Finally, the turnover box 5 is pulled up, and the lychees are transported forward through the material transfer channel formed between the recovery slope 3011 and the receiving belt 1031. At this time, the turnover box has only turned 90 degrees, and a small amount of lychees are still left in the turnover box 5. Then the second turning mechanism 202 clamps the turnover box 5, and the turning plate 2022 rotates to the top of the recovery slope 3011. At this time, the turnover box has achieved a 180-degree rotation, and the lychees are All the litchis are poured out, and the last fallen litchis slide down the recovery slope 3011 onto the conveyor line 1. Since the turnover box 5 is tilted to pour out the litchis instead of throwing them out in a feeding manner, the litchis will not be hit by being thrown out during the entire turning and unloading process, so the litchis will not be damaged. The conveyor line 1 keeps sending away the fallen litchis, so that the litchis will not be piled up, so that the litchis will not be damaged by being squeezed. Therefore, the automatic box turning and unloading device can effectively unload and ensure the integrity of the litchis.

[0056] The roller conveyor line 102 is provided with a plurality of first rollers 1021 , and the turnover boxes 5 must be fed into the turning assembly 2 one by one. Therefore, when there are many turnover boxes 5 on the lifting conveyor line 101 , the turnover boxes 5 can queue up on the roller conveyor line 102 .

[0057] The receiving conveyor line 103 includes a receiving belt 1031, receiving guard plates 1032 are arranged on both sides of the receiving belt 1031, and a guard plate entrance inclined position 10321 is arranged at one end of the receiving guard plate 1032 close to the roller conveyor line 102. The turning assembly 2 and the empty box recovery assembly 3 are located directly above the receiving conveyor line 103, and a material passing channel is formed between the recovery slope 3011 and the receiving belt 1031. Therefore, after the turnover box 5 is turned over, the lychees will fall onto the receiving belt 1031.

[0058] Flipping mounting side plates 2011 are arranged on both sides of the first flipping mechanism 201, and a first module 2012 is arranged on the flipping mounting side plates 2011. First slide rails 2013 are arranged on both sides of the first module 2012. The first module 2012 and the first slide rail 2013 are both slidably connected to the second module 2014. The second module 2014 is slidably connected to the first clamping cylinder 2015. The clamping rotation block 2016 is connected to the output end of the first clamping cylinder 2015. At least one deformable particle 20161 is arranged on the clamping rotation block 2016, and the deformable particle 20161 is made of a compressible and deformable rubber material. The clamping rotating block 2016 clamps the turnover box 5 from the left and right sides, and the deformed particles 20161 are squeezed and deformed, which increases the clamping force of the clamping rotating block 2016 on the turnover box, so that the turnover box 5 will not fall off and hit the lychees on the receiving belt 1031. Under the action of the first module 2012 and the second module 2014, the clamping rotating block 2016 gradually moves toward the second flipping mechanism 202 and rises. Since the clamping rotating block 2016 can rotate, the turnover box 5 is affected by gravity. The end of the turnover box 5 that is not clamped is at the bottom, and the clamped end gradually rises, until the entire turnover box 5 is no longer in contact with the receiving belt 1031, and the poured lychees can pass through the gap between the turnover box 5 and the receiving belt 1031.

[0059] The two ends of the flip plate 2022 are connected to the flip seat bearing 2021, the two sides of the flip plate 2022 are connected to the second clamping cylinder 2023, the side clamp block 2024 is connected to the output end of the second clamping cylinder 2023, and the side clamp block 2024 is provided with a clamping clip 20241. A start flip connection block 2029 is provided on the side of the flip plate 2022 away from the second clamping cylinder 2023, the start flip connection block 2029 is connected to the start flip bearing 20291, the start flip bearing 20291 is connected to the flip connection rod 2028, the two ends of the flip connection rod 2028 are connected to the flip connection fisheye joint 2027, the flip connection fisheye joint 2027 is connected to the output end of the flip cylinder 2026, the tail end of the flip cylinder 2026 is rotatably connected to the flip cylinder seat 2025, and the flip cylinder seat 2025 is connected to the flip installation side plate 2011. Therefore, when the flip cylinder 2026 is retracted, the flip plate 2022 and the receiving belt 1031 are in a vertical state. At this time, the turnover box 5 is pulled up by the clamping rotation block 2016 and is between the side clamping blocks 2024 on the left and right sides. The side clamping blocks 2024 clamp the turnover box 5 under the drive of the second clamping cylinder 2023, and the clamping rotation block 2016 retracts under the drive of the first clamping cylinder 2015, and the clamping rotation block 2016 moves back to the first flip mechanism 201 close to the first flip mechanism 201. At one end of the roller conveyor line 102, the second box of lychees is clamped and flipped, and then the flip plate 2022 is flipped upward under the drive of the flip cylinder 2026 until it is parallel to the receiving belt 1031. The side clamp block 2024 is provided with a clamping strip 20241, and there are concave positions on both sides of the turnover box 5, so the clamping strip 20241 can clamp the strip column on the edge of the turnover box 5, so that the turnover box 5 is not only clamped, but also can be stuck, so that the turnover box 5 is not easy to fall off.

[0060] A recycling rotating drum 3013 is provided at one end of the recycling rack 301 away from the recycling slope 3011, and recycling slope guard plates 3012 are provided on both sides of the recycling slope 3011. A recycling movable clamp mounting tube 302 is provided above the recycling rack 301, and a third module 303 and a second slide rail 304 are provided on the recycling movable clamp mounting tube 302. The third module 303 and the second slide rail 304 are both movably connected to a recycling lifting cylinder 305, and the recycling lifting cylinder 305 is connected to a recycling clamping cylinder 306, and the recycling clamping cylinder 306 is connected to a recycling clamping plate 307. The two recovery clamps 307 on both sides of the recovery rack 301 clamp the turnover box 5 that has been flipped 180 degrees, and the side clamps 2024 are released and no longer clamp the turnover box 5. The recovery clamps 307 clamp the turnover box 5 and pull it onto the recovery turning roller 3013 and put it down. The flip plate 2022 is driven by the flip cylinder 2026 to flip downward and restore to a state perpendicular to the receiving conveyor line 103, and continue to clamp the next turnover box 5.

[0061] One end of the recycling rotating drum 3013 is connected to the recycling conveying component 4. After the empty turnover box 5 is placed on the recycling rotating drum 3013, the recycling rotating drum 3013 rotates under the drive of the external motor to convey it toward the recycling conveying component 4. The recycling conveying component 4 includes a turning roller conveyor line 401 and a descending recycling conveyor line 402. A number of recycling rollers 4011 are arranged on the turning roller conveyor line 401. Turning guard plates 4012 are arranged on both sides of the recycling roller 4011. The descending recycling conveyor line 402 includes a descending recycling belt 4021. Descending guard plates 4022 are arranged on both sides of the descending recycling belt 4021. The turnover box 5 is finally recycled by the recycling conveying component 4 and then used next time. The unloading device is also provided with a turnover box 5 recycling. When loading and unloading, the turnover box 5 does not need to wait for the turnover boxes 5 in front and behind to leave before operation, which conforms to the design concept of assembly line operation and improves work efficiency.

[0062] The size screening area 7 includes a plurality of screening shafts 701, and screening area guard plates 702 are arranged on both sides of the screening shafts 701, and the screening area guard plates 702 can prevent litchi from falling from both sides of the size screening area 7. The small particle transportation area 9 includes a plurality of small particle transportation shafts 901, and small particle transportation guard plates 902 are arranged on both sides of the small particle transportation shafts 901; the gap between two adjacent screening shafts 701 is larger than the gap between two adjacent small particle transportation shafts 901; therefore, when litchi passes through the size screening area 7, small particle litchi falls from the gap between two adjacent screening shafts 701 to the small particle transportation shaft 901, while large particle litchi passes through the size screening area 7 and is finally sent to the large particle color discrimination area 8, and small particle litchi passes through the small particle transportation area 9 and is transported to the small particle color discrimination area 10.

[0063] The small particle transport guard plate 902 includes a receiving funnel 9021 and a small particle arc-shaped guard plate 9022. The receiving funnel 9021 is located directly below the size screening area 7. The receiving funnel 9021 includes a receiving straight edge 902A and a receiving bevel 902B. In the process of lychees falling from the gap between two adjacent screening shafts 701 to the small particle transport shaft 901, the lychees on the side will not be clamped by the receiving bevel 902B and the size screening area 7 because of the transition of the receiving straight edge 902A, thereby preventing the lychees from getting stuck during the sorting process.

[0064] The large particle color identification area 8 includes at least one main track 801 and at least one secondary track 802. The main track 801 and the secondary track 802 are arranged adjacent to each other. A visual recognition camera 803 is arranged above the main track 801. A visual recognition auxiliary light 804 is arranged around the visual recognition camera 803. The visual recognition auxiliary light 804 is used to provide light source for the visual recognition camera 803, so that the visual recognition camera 803 can better identify lychees of different colors. A rotating cylinder 8 is arranged on the side of the visual recognition camera 803 away from the size screening area 7. 05, the rotating cylinder 805 is connected to the screening and sorting channel 806; when the lychees pass under the visual recognition camera 803, the visual recognition camera 803 quickly identifies the lychees, and when the lychees with poor color quality pass through the screening and sorting channel 806, the rotating cylinder 805 rotates, so that the outlet of the screening and sorting channel 806 is swung to the side of the secondary channel, so that the lychees with poor color quality are sorted to the secondary channel, thereby finally completing the sorting of the lychees. The small particle color discrimination area 10 is consistent with the large particle color discrimination area 8 in structure, which will not be repeated here.

[0065] After the litchis are sorted by size, the automatic litchi sorting device further sorts the large-grade litchis and the small-grade litchis by color. The large-grain color identification area and the small-grain color identification area can classify the litchis of different maturity and transport them separately. By classifying the litchis by size and maturity, the litchis are divided into different grades, so as to achieve the purpose of quickly screening and classifying the litchis, shorten the packaging time of the litchis, and enable the litchis to be delivered to consumers in a fresher state.

[0066] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sorting device for dried lychees, characterized in that: The conveyor line (1) comprises a turning assembly (2) and an empty box recovery assembly (3) arranged above the conveyor line (1); one end of the empty box recovery assembly (3) is connected to the recovery conveyor assembly (4); one end of the conveyor line (1) is connected to a size screening area (7); the other end of the size screening area (7) is connected to a large particle color discrimination area (8); a small particle transport area (9) is arranged below the size screening area (7); the small particle transport area (9) is connected to a small particle color discrimination area (10); The flip assembly (2) comprises a first flip mechanism (201) and a second flip mechanism (202), and the second flip mechanism (202) is hinged to the first flip mechanism (201); The first turning mechanism (201) clamps and causes the turnover box (5) to turn 90 degrees, the second turning mechanism (202) clamps and causes the turnover box (5) to turn another 90 degrees, and the turnover box (5) turns 180 degrees after passing through the first turning mechanism (201) and the second turning mechanism (202).

2. A sorting device for dried lychees according to claim 1, characterized in that: Clamping and rotating blocks (2016) are arranged on both sides of the first turning mechanism (201); the clamping and rotating blocks (2016) can move up and down and left and right relative to the first turning mechanism (201); the clamping and rotating blocks (2016) on both sides of the first turning mechanism (201) can move toward the middle or separate toward both sides; The empty box recovery assembly (3) is provided with a recovery rack (301), the recovery rack (301) comprises a recovery slope (3011), the second flipping mechanism (202) comprises a flipping plate (2022), the flipping plate (2022) can be rotated to be directly above the recovery slope (3011), side clamping blocks (2024) are provided on both sides of the flipping plate (2022), and the side clamping blocks (2024) on both sides of the flipping plate (2022) can be moved together toward the middle or separated toward both sides.

3. A sorting device for dried lychees according to claim 1, characterized in that: The size screening area (7) comprises a plurality of screening shafts (701), screening area guard plates (702) are arranged on both sides of the screening shafts (701), and the small particle transport area (9) comprises a plurality of small particle transport shafts (901), small particle transport guard plates (902) are arranged on both sides of the small particle transport shafts (901); The gap between two adjacent screening shafts (701) is larger than the gap between two adjacent small particle transport shafts (901); The small particle transport guard plate (902) comprises a receiving funnel (9021) and a small particle arc-shaped guard plate (9022). The receiving funnel (9021) is located directly below the size screening area (7). The receiving funnel (9021) comprises a receiving straight edge (902A) and a receiving bevel edge (902B).

4. A sorting device for dried lychees according to claim 2, characterized in that: The conveyor line (1) comprises a rising conveyor line (101), a roller conveyor line (102) and a receiving conveyor line (103) which are connected in sequence; The receiving conveyor line (103) comprises a receiving belt (1031), receiving guard plates (1032) are arranged on both sides of the receiving belt (1031), and a guard plate entrance oblique position (10321) is arranged at one end of the receiving guard plate (1032) close to the roller conveyor line (102); The turning assembly (2) and the empty box recovery assembly (3) are located directly above the receiving conveyor line (103), and a material transfer channel is formed between the recovery slope (3011) and the receiving belt (1031).

5. A sorting device for dried lychees according to claim 2, characterized in that: Flipping installation side plates (2011) are arranged on both sides of the first flipping mechanism (201), a first module (2012) is arranged on the flipping installation side plates (2011), first slide rails (2013) are arranged on both sides of the first module (2012), the first module (2012) and the first slide rails (2013) are both slidably connected to the second module (2014), the second module (2014) is slidably connected to the first clamping cylinder (2015), and the clamping self-rotating block (2016) is connected to the output end of the first clamping cylinder (2015); The clamping and rotating block (2016) is provided with at least one deformable particle (20161), and the deformable particle (20161) is made of a compressible and deformable rubber material.

6. A sorting device for dried lychees according to claim 5, characterized in that: The two ends of the flip plate (222) are connected to the flip seat bearing (221), the two sides of the flip plate (2022) are connected to the second clamping cylinder (2023), the side clamping block (2024) is connected to the output end of the second clamping cylinder (2023), and the side clamping block (2024) is provided with a clamping strip (20241); A start-up flip connection block (2029) is provided on one side of the flip plate (2022) away from the second clamping cylinder (2023); the start-up flip connection block (2029) is connected to a start-up flip bearing (20291); the start-up flip bearing (20291) is connected to a flip connection rod (2028); both ends of the flip connection rod (2028) are connected to a flip connection fisheye joint (2027); the flip connection fisheye joint (227) is connected to the output end of the flip cylinder (2026); the tail end of the flip cylinder (2026) is rotationally connected to the flip cylinder seat (225); and the flip cylinder seat (2025) is connected to the flip mounting side plate (211).

7. A sorting device for dried lychees according to any one of claims 1 to 6, characterized in that: The large particle color discrimination area (8) comprises at least one main channel (801) and at least one secondary channel (802), and the main channel (801) and the secondary channel (802) are arranged adjacent to each other.

8. A sorting device for dried lychees according to claim 7, characterized in that: A visual recognition camera (803) is arranged above the main path (801), and visual recognition auxiliary lights (804) are arranged around the visual recognition camera (803); A rotating cylinder (805) is provided on one side of the visual recognition camera (803) away from the size screening area (7), and the rotating cylinder (805) is connected to the screening and classification channel (806); The small particle color discrimination area (10) has the same structure as the large particle color discrimination area (8).

9. A sorting device for dried lychees according to any one of claims 4 to 6, characterized in that: A recovery rotating roller (3013) is provided at one end of the recovery frame (301) away from the recovery slope (3011), and recovery slope guard plates (3012) are provided on both sides of the recovery slope (3011); A recovery movable clamp mounting tube (302) is arranged above the recovery rack (301), a third module (303) and a second slide rail (304) are arranged on the recovery movable clamp mounting tube (302), the third module (303) and the second slide rail (304) are both movably connected to a recovery lifting cylinder (305), the recovery lifting cylinder (305) is connected to a recovery clamping cylinder (306), and the recovery clamping cylinder (306) is connected to a recovery clamping plate (307).

10. The sorting device for dried lychees according to claim 4, characterized in that: The recovery conveying assembly (4) comprises a turning roller conveying line (401) and a descending recovery conveying line (402); a plurality of recovery rollers (4011) are arranged on the turning roller conveying line (401); turning guard plates (4012) are arranged on both sides of the recovery rollers (4011); the descending recovery conveying line (402) comprises a descending recovery belt (4021); descending guard plates (4022) are arranged on both sides of the descending recovery belt (4021); The elevated conveyor line (101) comprises an elevated belt (1011), and limit guard plates (1012) are arranged on both sides of the elevated belt (1011); The roller conveyor line (102) is provided with a plurality of first rollers (1021).

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