An automated jujube sorting device

Abstract

This utility model relates to the field of jujube processing technology, specifically an automated jujube sorting device. Along the material conveying direction, it sequentially includes a feeding unit, a material arrangement unit, a circulation unit, a conveying roller group, a visual inspection mechanism, and an air-blowing sorting unit. The material arrangement unit includes at least one layer of uniform distribution mechanism and a bottom layer of arrangement mechanism. The air-blowing sorting unit includes multiple sorting conveying mechanisms and an air-blowing mechanism located at each sorting conveying mechanism. This automated jujube sorting device achieves automated material feeding, a multi-layered arrangement structure to avoid multiple material recycling cycles, and reduces damage caused by collisions. It improves material arrangement speed, rationally utilizes longitudinal space, reduces equipment volume occupation, enables unmanned rapid sorting and classification, and improves overall material sorting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of jujube processing technology, specifically to an automated jujube screening device. Background Technology

[0002] After harvesting, jujubes typically need to be sorted according to characteristics such as size, quality, and color to ensure that each grade of jujubes meets the corresponding standards, thereby improving the overall quality of the product. Currently, jujubes are usually sorted manually, which is not only time-consuming and labor-intensive, but also inefficient. Furthermore, the manual sorting process can cause secondary damage to the jujubes.

[0003] Chinese Utility Model Patent Publication No. CN110530290A discloses a jujube sorting device, including a feeding hopper, a feeding and lifting machine, an arranging mechanism, and a sorting mechanism. The feeding hopper has a first vibrating hopper at its discharge end, which connects to the receiving end of the feeding and lifting machine. A second vibrating hopper connects to the discharge end of the feeding and lifting machine. Multiple arranging mechanisms are arranged side-by-side at the discharge end of the second vibrating hopper. The arranging mechanism includes a frame and a double-row conveyor chain. The double-row conveyor chain is mounted on the frame, and several rollers with axial directions perpendicular to the conveying direction of the double-row conveyor chain are arranged side-by-side on the double-row conveyor chain. Symmetrical waist drums are provided at both ends of the rollers. The gaps between adjacent waist drums on adjacent rollers are used to clamp jujubes. Protective plates fixed to the frame are symmetrically arranged on both outer sides of the double-row conveyor chain, forming a material guide channel. The sorting mechanism includes a camera recognition area, a spray valve, and a waste recycling conveyor belt. This utility model has a high degree of automation, good sorting effect, and improved work efficiency.

[0004] In the aforementioned technology, the material guiding channel is a single layer. Although multiple material guiding channels are provided, the amount of jujube material that can be distributed in a single operation is still limited, resulting in low overall distribution efficiency. This requires multiple rounds of recycling and re-distribution, causing the jujube material to fall or roll repeatedly, thus affecting the quality of the jujube product. Regarding the sorting of jujube material, a spray valve is used in conjunction with a double-row conveyor chain that runs through the entire structure. If multiple conveyor lines are used, more spray valves and related collection hoppers are required. In terms of equipment installation and site space, there are gaps between the double-chain conveyor lines in the aforementioned technology, resulting in a large overall equipment footprint. The cost of the spray valves and other hoppers required for jujube sorting is high, and their quantity is relatively large, leading to complex wiring and increased maintenance and repair difficulties.

[0005] Therefore, it is urgent to develop a technical solution to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide an automated jujube sorting device that enables automated material feeding, a multi-layered arrangement structure to avoid multiple material recycling cycles and reduce damage caused by bumps; improves material arrangement speed, makes reasonable use of vertical space, reduces equipment volume occupation, enables unmanned and rapid sorting and classification, and improves overall material sorting efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution;

[0008] An automated jujube sorting device includes, in sequence along the material conveying direction, a material lifting unit, a material arrangement unit, a circulation unit, a conveying roller group, a visual inspection mechanism, and an air-blowing sorting unit; the material arrangement unit includes at least one layer of uniform distribution mechanism and a bottom layer of arrangement mechanism; the air-blowing sorting unit includes multiple sorting conveying mechanisms and an air-blowing mechanism disposed at each sorting conveying mechanism.

[0009] During screening, the lifting unit raises and conveys the material to the material distribution unit for distribution. The material distribution unit then sends the distributed material to the conveyor roller assembly. During the distribution process, excess material in the distribution mechanism falls down step by step and eventually falls into the bottom distribution mechanism. Excess material in the bottom distribution mechanism falls into the circulation unit. The circulation unit collects the material that falls from the bottom distribution mechanism and conveys it to the lifting unit. The conveyor roller assembly moves the distributed material and passes through the inspection mechanism to obtain material information. When the conveyor roller assembly moves the material waiting to be screened after inspection over the air blowing mechanism at the sorting conveyor, the air blowing mechanism blows the moving material to be screened from below, causing specific material to fly up from the conveyor roller assembly and fall into the sorting conveyor. The multiple sorting conveyors then convey the sorted material out of the equipment.

[0010] Furthermore, the feeding port of the uniform distribution mechanism is provided with a uniform distribution guide plate, and the feeding port of the bottom layer distribution mechanism is provided with a bottom layer guide plate; the uniform distribution guide plate and the bottom layer guide plate are both connected to the discharging end of the lifting unit; the lifting unit includes a lifting mechanism and a conveying mechanism; the lifting mechanism lifts the material to be uniformly distributed to a predetermined height and sends the material into the feeding end of the conveying mechanism; the conveying mechanism sends the material to the uniform distribution guide plate and the bottom layer guide plate.

[0011] Furthermore, the uniform distribution mechanism includes multiple parallel uniform distribution conveyor belts, with gaps reserved between the uniform distribution conveyor belts for material to fall; the bottom layer distribution mechanism includes multiple parallel bottom layer conveyor belts, with gaps reserved between the bottom layer conveyor belts for material to fall; each of the uniform distribution conveyor belts and the bottom layer conveyor belts is equipped with multiple fabric brushes.

[0012] As the uniformly distributed conveyor belt and the bottom conveyor belt move the materials, the cloth brush flattens the stacked materials or pushes them into the gaps to fall.

[0013] Furthermore, the uniformly distributed conveyor belt is also equipped with multiple material discharge plates and material discharge guides; the material falls from the uniformly distributed conveyor belt into the gap, is diverted by the material discharge plates to the material discharge guides, and the material discharge guides the material into the next layer of uniform distribution mechanism until the material falls into the bottom layer of the distribution mechanism.

[0014] Furthermore, the circulation unit includes a first circulation conveyor belt, a circulation elevator, and a second circulation conveyor belt; the first circulation conveyor belt is located below the bottom layer arrangement mechanism, the circulation elevator is located at the discharge end of the first circulation conveyor belt, and the second circulation conveyor belt is located at the discharge end of the circulation elevator; the second circulation conveyor belt delivers the recovered material to the lifting unit to complete the circulation.

[0015] Furthermore, it also includes a frame, on which the conveyor roller assembly, visual inspection mechanism, and air-blowing sorting unit are all mounted; the frame is also equipped with a rotating roller structure and a material roller drive mechanism for driving the conveyor roller assembly;

[0016] During visual inspection, the material roller drive mechanism drives the conveyor roller group to move and convey the material to be inspected. When the material to be inspected moves to the rotating roller structure, the rotating roller structure causes the conveyor roller group to rotate, which in turn drives the material to be inspected to rotate. The visual inspection mechanism collects image information of the rotating material for visual inspection.

[0017] Furthermore, the conveying roller assembly includes multiple roller seats that are driven and connected to the execution end of the roller drive mechanism. Each roller seat has a roller rotatably mounted on it, and the end of the roller is provided with a rotating gear. During visual inspection, the roller drive mechanism drives the roller seat to move, thereby moving the roller. When the roller moves to the rotating roller structure, the rotating gear contacts the rotating roller structure to make the roller rotate, thereby rotating the material to be inspected.

[0018] The roller structure includes a rack frame and a roller rack mounted on the rack frame; the rack frame is mounted on the frame body and located on the side of the conveying roller group; when the material roller drive mechanism drives the material roller seat to move to the roller rack and continues to move, the roller rack meshes with the material transfer gear to make the material roller rotate.

[0019] Furthermore, the air blowing mechanism includes an air collection tank, on which an air distribution pipe is provided, and each air distribution pipe is provided with an electrically controlled air valve, and each electrically controlled air valve is provided with an air blowing nozzle at its outlet end.

[0020] During air-blowing sorting, the air collection tank provides clean, high-pressure gas. When the material to be screened passes above the air nozzle, the electrically controlled air valve opens, and the gas blows the material to be screened, which is driven by the conveyor roller group. The material to be screened flies up and falls into the sorting and conveying mechanism.

[0021] Furthermore, there is a gap in the conveying roller assembly, and the air nozzle is located at the gap in the conveying roller assembly.

[0022] Furthermore, it also includes a control host, which is electrically connected to the material lifting unit, material arrangement unit, circulation unit, conveying roller group, visual inspection mechanism and air blowing sorting unit.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] In practical use, the lifting mechanism elevates and conveys materials, achieving automated material feeding to meet the needs of large-scale jujube screening operations and improve feeding efficiency. The even distribution mechanism and the bottom layer distribution mechanism form a multi-layered distribution structure, working together to collect fallen materials and re-distribute them before recycling, avoiding multiple recycling cycles, reducing the number of cycles, and preventing damage from repeated impacts. The circulation unit and lifting unit automate the conveying device's circulation, increasing material distribution speed and improving overall material conveying efficiency. The conveyor roller group and inspection mechanism work together to inspect the materials while they are being conveyed. Visual inspection of materials obtains images of jujube materials; the air blowing mechanism, in conjunction with the conveyor roller group, blows air onto materials that have completed visual inspection and are awaiting sorting while in motion, improving sorting efficiency through online air blowing; the air blowing mechanism, conveyor roller group, and sorting conveyor adopt a layered layout, making reasonable use of longitudinal space and reducing equipment volume occupation; and multiple sorting conveyor mechanisms can transport materials with various visual inspection results. When the corresponding type of material to be screened moves to the sorting conveyor, the air blowing mechanism blows the material, realizing multi-level rapid sorting of materials, enabling unmanned rapid sorting and classification, and improving the overall material sorting efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0027] Figure 3 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0028] Figure 4 This is a three-dimensional structural diagram of the material arrangement unit of this utility model;

[0029] Figure 5 This is a three-dimensional structural schematic diagram of the material arrangement unit part of this utility model from another perspective;

[0030] Figure 6 for Figure 5 Enlarged view of point D;

[0031] Figure 7 This is a schematic diagram of the planar structure of the material arrangement unit of this utility model;

[0032] Figure 8 This is a three-dimensional structural diagram of the visual inspection unit of this utility model;

[0033] Figure 9 for Figure 8 Enlarged view of point B in the middle;

[0034] Figure 10 for Figure 8 Enlarged view of point C in the middle;

[0035] Figure 11 This is a three-dimensional structural diagram of the air-blowing sorting unit of this utility model.

[0036] Figure 12 for Figure 11 Enlarged view of point A in the middle;

[0037] Figure 13 This is a schematic diagram illustrating the working principle of the air-blowing sorting unit. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0039] refer to Figure 1-13 As shown, an automated jujube sorting device includes, in sequence along the material conveying direction, a material lifting unit 1, a material arrangement unit 2, a circulation unit 3, a conveying roller group 5, a visual inspection mechanism 6, and an air-blowing sorting unit 7; the material arrangement unit 2 includes at least one layer of uniform distribution mechanism 213 and a bottom layer of arrangement mechanism 215; the air-blowing sorting unit 7 includes multiple sorting conveying mechanisms 71 and an air-blowing mechanism 72 disposed at each sorting conveying mechanism 71;

[0040] During screening, the lifting unit 1 lifts and conveys the material to the material distribution unit 2 for material distribution. The material distribution unit 2 then sends the distributed material into the conveying roller group 5. During the distribution process, excess material in the uniform distribution mechanism 213 falls down step by step and finally falls into the bottom distribution mechanism 215. Excess material in the bottom distribution mechanism 215 falls into the circulation unit 3. The circulation unit 3 collects the material that falls from the bottom distribution mechanism 215 and conveys it to the lifting unit 1. The conveying roller group 5 moves the distributed material and passes through the inspection mechanism 6 to obtain material information. When the conveying roller group 5 moves the inspected material waiting to be screened over the air blowing mechanism 72 at the sorting conveying mechanism 71, the air blowing mechanism 72 blows the moving material to be screened from below, so that specific material flies up from the conveying roller group 5 and falls into the sorting conveying mechanism 71. The multiple sorting conveying mechanisms 71 respectively convey the sorted material out of the equipment.

[0041] Specifically, the uniform distribution mechanism 213 can be a multi-layer design. In this embodiment, only a single layer of uniform distribution mechanism 213 combined with the bottom layer arrangement 215 is used to illustrate the technical solution.

[0042] This automated jujube sorting equipment features a material lifting mechanism 1 that elevates and conveys materials, enabling automated material feeding to meet the needs of large-scale jujube sorting operations and improve feeding efficiency. A multi-layered distribution structure consisting of a uniform distribution mechanism 213 and a bottom-layer distribution mechanism 215 works together to collect fallen materials before distribution, allowing for re-distribution before material recovery, avoiding multiple material recycling cycles, reducing the number of cycles, and preventing damage from repeated impacts. A circulation unit 3 and an lifting unit 1 automate the conveying device's circulation, increasing material distribution speed and overall conveying efficiency. A conveyor roller group 5 and an inspection mechanism 6 work together to simultaneously convey materials. Visual inspection of materials is performed to obtain image information of jujube materials; the air blowing mechanism 72, in conjunction with the conveyor roller group 5, realizes the air blowing action on the materials that have completed visual inspection and are waiting for sorting while in motion, and improves sorting efficiency through online air blowing; the air blowing mechanism 72, the conveyor roller group 5 and the sorting conveyor 7 adopt a layered layout, make reasonable use of longitudinal space and reduce the equipment volume occupation; and multiple sorting conveyors 71 can convey materials with various visual inspection results. When the corresponding type of material to be screened moves to the sorting conveyor 71, the air blowing mechanism 72 blows the material, realizing multi-level rapid sorting of materials, performing unmanned rapid sorting and classification, and improving the overall material sorting efficiency.

[0043] In this embodiment, the feeding port of the uniform distribution mechanism 213 is provided with a uniform distribution guide plate 211, and the feeding port of the bottom layer distribution mechanism 215 is provided with a bottom layer guide plate 212; the uniform distribution guide plate 211 and the bottom layer guide plate 212 are both connected to the discharge end of the lifting unit 1; the lifting unit 1 includes a lifting mechanism 11 and a conveying mechanism 12; the lifting mechanism 11 lifts the material to be uniformly distributed to a predetermined height and sends the material into the feeding end of the conveying mechanism 12; the conveying mechanism 12 sends the material onto the uniform distribution guide plate 211 and the bottom layer guide plate 212.

[0044] Specifically, the uniform distribution guide plate 211 and the bottom guide plate 212 are arranged in layers, which can realize the diversion of materials during the feeding stage and avoid excessive accumulation of materials on the uniform distribution mechanism 213, thus affecting the material arrangement effect. Specifically, the lifting mechanism 1 can be an electrically driven feeding elevator, and the conveying mechanism 12 can be an electrically driven conveyor belt assembly. The lifting mechanism 1 and the conveying mechanism 12 work together to automatically lift the materials. The conveying mechanism 12 performs parallel transportation in a certain form to pre-sort the materials and avoid accumulation to a certain extent. Then, the materials are evenly delivered to the uniform distribution guide plate 211 and the bottom guide plate 212 so that the materials enter the uniform distribution mechanism 213 and the bottom arrangement mechanism 215.

[0045] In this embodiment, the uniform distribution mechanism 213 includes multiple parallel uniform distribution conveyor belts, with gaps reserved between the uniform distribution conveyor belts for material to fall; the bottom layer arrangement mechanism 215 includes multiple parallel bottom layer conveyor belts, with gaps reserved between the bottom layer conveyor belts for material to fall; each of the uniform distribution conveyor belts and the bottom layer conveyor belts is provided with multiple fabric brushes 214.

[0046] When the uniformly distributed conveyor belt and the bottom conveyor belt move the material, the cloth brush 214 flattens the stacked material or pushes it into the gaps to fall.

[0047] Specifically, both the uniform distribution conveyor belt in the uniform distribution mechanism 213 and the bottom layer conveyor belt in the bottom layer arrangement mechanism 215 can be electrically driven conveyor belt assemblies. The material is driven by the uniform distribution conveyor belt and the bottom layer conveyor belt. The cloth brush 214 gently brushes and moves the material, both to move the stacked material to make it flat, or to push the excess material into the lower layer through the gaps. At the same time, it also removes the floating dust and impurities on the flat material, improving the efficiency of subsequent material processing and avoiding the mixing of other impurities. Specifically, the bottom layer conveyor belt in the bottom layer arrangement mechanism 215 can be electrically driven conveyor belt assemblies. The cloth brush 214 on the bottom layer conveyor belt gently brushes and moves the material, both to move the stacked material to make it flat, or to push the excess material into the circulation unit 3 through the gaps.

[0048] In this embodiment, the uniformly distributed conveyor belt is also provided with multiple material dropping plates 217 and material dropping guide plates 216; the material falls from the uniformly distributed conveyor belt into the gap, and is diverted by the material dropping plates 217 to the material dropping guide plates 216. The material dropping guide plates 216 guide the material into the next layer of uniformly distributed mechanism 213 until the material falls into the bottom layer of arrangement mechanism 215.

[0049] Specifically, the material discharge plate 217 is used to divert excess material falling down to prevent it from falling down and accumulating again; the material discharge guide plate 216 can guide the material after being diverted by the material discharge plate 217 to the lower layer of the uniform distribution mechanism 213. If the uniform distribution mechanism 213 has only one layer, the material will be guided to the bottom layer of the arrangement mechanism 215.

[0050] In this embodiment, the circulation unit 3 includes a first circulation conveyor belt 31, a circulation elevator 32, and a second circulation conveyor belt 33. The first circulation conveyor belt 31 is located below the bottom arrangement mechanism 215, the circulation elevator 32 is located at the discharge end of the first circulation conveyor belt 31, and the second circulation conveyor belt 33 is located at the discharge end of the circulation elevator 32. The second circulation conveyor belt 33 delivers the recovered material to the lifting unit 1 to complete the circulation.

[0051] Specifically, the first conveyor belt 31 can be an electrically driven conveyor belt assembly, the circulating elevator 32 can be a combination of a conveyor belt and an elevator, and the circulating second conveyor belt 33 can be an electrically driven conveyor belt assembly. The circulating first conveyor belt 31 collects and transports the fallen materials so that the materials enter the circulating elevator 32. The circulating elevator 32 automatically transports and lifts the recovered materials onto the circulating second conveyor belt 33, which then sends the materials to the material lifting unit 1 to complete the recycling process and improve the overall recycling efficiency.

[0052] In this embodiment, the projected area of ​​the first circulating conveyor belt 31 is larger than the projected area of ​​the bottom arrangement mechanism 215. Specifically, the actual conveying area of ​​the first circulating conveyor belt 31 is larger than the conveying area of ​​the bottom arrangement mechanism 215, ensuring that materials falling from any position on the bottom arrangement mechanism 215 can fall onto the first circulating conveyor belt 31, improving circulation efficiency and preventing materials from accumulating in one place and falling in a concentrated manner.

[0053] In this embodiment, both the uniform distribution mechanism and the bottom layer arrangement mechanism are equipped with a material guide conveyor belt 22 at their discharge ends, which delivers the material to the conveyor roller group.

[0054] Under the coordinated operation of the feeding unit 1, the material arrangement unit 2 and the circulation unit 3, the jujube material is evenly distributed and arranged on the conveyor roller group 5 for subsequent conveying, visual inspection and screening operations.

[0055] In this embodiment, a frame 9 is also included, on which the conveying roller group 5, the visual inspection mechanism 6 and the air-blowing sorting unit 7 are all mounted; the frame 9 is also equipped with a rotating roller structure 8 and a material roller drive mechanism 4 for driving the conveying roller group 5.

[0056] During visual inspection, the material roller drive mechanism 4 drives the conveyor roller group 5 to move and convey the material to be inspected. When the material to be inspected moves to the rotating roller structure 8, the rotating roller structure 8 causes the conveyor roller group 5 to rotate, which in turn drives the material to be inspected to rotate. The visual inspection mechanism 6 collects image information of the rotating material for visual inspection.

[0057] Specifically, the material roller drive mechanism 4 drives the conveyor roller group 5 to transfer the material to be inspected, realizing fast and stable automated conveying; the rotating roller structure 8 causes the moving conveyor roller group 5 to rotate, thereby causing the material to be inspected to rotate and move on the conveyor roller group 5, ensuring that the inspection mechanism 6 can collect images from multiple sides of the material to be inspected, improving the efficiency of material information acquisition and improving the quality of visual recognition; and the rotating material can remove some of the attached dust or debris, reducing visual recognition errors and improving the overall material time efficiency.

[0058] In this embodiment, the material roller drive mechanism 4 includes a material roller drive device 41 and a material roller circulation chain 42 driven and connected to the execution end of the material roller drive device 41; a conveying roller group 5 is installed on the material roller circulation chain 42; during visual inspection, the material roller drive device 41 drives the material roller circulation chain 42 to rotate, thereby driving the conveying roller 5 to move.

[0059] Specifically, the material roller drive device 41 can be a motor. The output end of the motor drives the material roller circulation chain 42 through a synchronous pulley. The material roller circulation chain 42 drives the conveying roller group 5 to move in a cycle, thereby realizing the conveying and movement of materials.

[0060] In this embodiment, the conveying roller group 5 includes multiple roller seats 53 that are driven and connected to the execution end of the roller drive mechanism 4. Each roller seat 53 is rotatably mounted with a roller 52, and the end of the roller 52 is provided with a rotating gear 51. During visual inspection, the roller drive mechanism 4 drives the roller seat 53 to move, thereby driving the roller 52 to move. When the roller 52 moves to the rotating roller structure 8, the rotating gear 51 contacts the rotating roller structure 8 to make the roller 52 rotate, thereby rotating the material to be inspected.

[0061] Specifically, the material roller seat 53 is connected to the material roller circulation chain 42, and a material roller 52 is rotatably installed on each material roller seat 53; the material rotating gear 51 is disengaged from the rotating roller structure 8, so that the material roller 52 rotates on the material roller seat 53, thereby driving the material to be inspected placed on the material roller 52 to rotate; thus improving the efficiency and accuracy of image acquisition for visual inspection.

[0062] In this embodiment, the roller structure 8 includes a rack frame 81 and a roller rack 82 mounted on the rack frame 81; the rack frame 81 is mounted on the frame 9 and located on the side of the conveying roller group 5; when the material roller drive mechanism 4 drives the material roller seat 53 to move to the roller rack 82 and continues to move, the roller rack 82 meshes with the material transfer gear 51 to make the material roller 52 rotate.

[0063] Specifically, the position of the rotating roller rack 82 corresponds to the position of the material transfer gear 51. The meshing of the rotating roller rack 82 and the material transfer gear 51 allows the material roller 52 to continuously rotate within the rotating roller rack 82, thereby rotating the material, removing impurities, and improving the visual inspection efficiency and quality of the material.

[0064] In this embodiment, the material rollers 52 with the material transfer gears 51 on the same side are spaced apart. Specifically, this avoids mutual interference between the material transfer gears 51 on the same side, improving the stability of the conveyor roller group 5 during operation; the material transfer gears 51 are evenly distributed on both sides to avoid contact between one side and the roller structure 8, which would cause the conveyor roller group 5 to deflect or rotate as a whole, thus improving the overall stability of operation.

[0065] In this embodiment, the visual inspection mechanism 6 includes a visual inspection camera 62, which is mounted on the frame 9 using a camera bracket 61. During visual inspection, the material roller drive mechanism 4 drives the rotating roller structure 8 to rotate the conveying roller group 5, and the stroke covers the acquisition range of the visual inspection camera 62.

[0066] Specifically, the camera bracket 61 can mount the inspection camera 62 above the conveyor roller group 5. The rotating roller structure 8 ensures that the rotation range of the conveyor roller group 5 covers the acquisition range of the inspection camera 62, ensuring that the image information of the material acquired by the inspection camera 62 is of the material in a rolling state, thereby improving the efficiency and quality of inspection.

[0067] The visual inspection unit 6 acquires image information of the material. The material that has completed visual inspection continues to be transported by the conveyor roller group 5 until it reaches the air-blowing sorting unit 7. The material after visual inspection is classified and sorted accordingly to complete the screening.

[0068] In this embodiment, multiple sorting and conveying mechanisms 71 are mounted above the conveying roller group 5 for conveying materials. Each sorting and conveying mechanism 71 is equipped with an air blowing mechanism 72, which is located below the conveying roller group 5. During sorting, the conveying roller group 5 drives the material to be sorted to move. When the material to be sorted passes above the air blowing mechanism 72 at the sorting and conveying mechanism 71, the air blowing mechanism 72 blows the moving material to be sorted from below, so that the material to be sorted flies up from the conveying roller group 5 and falls into the sorting and conveying mechanism 71.

[0069] Specifically, the conveyor roller group 5 consists of a material support roller and a material roller drive mechanism 4. The material roller drive mechanism 4 is a motor, which realizes the parallel transportation of materials to be sorted. The sorting conveyor mechanism 71 can adopt a conveyor belt device to realize the transmission of sorted materials. The air blowing mechanism 72 works with the conveyor roller group 5 to realize air blowing on the moving materials to be sorted, thereby improving sorting efficiency through online air blowing. The air blowing mechanism 72, the conveyor roller group 5 and the sorting conveyor mechanism 7 adopt a layered layout, making reasonable use of longitudinal space and reducing the volume of equipment. Moreover, multiple sorting conveyor mechanisms 71 can transport materials of various quality types. When the corresponding type of materials to be sorted moves to the sorting conveyor mechanism 71, the air blowing mechanism 72 blows the material, realizing multi-level rapid sorting of materials, performing unmanned rapid sorting and classification, and improving the overall material sorting efficiency.

[0070] In this embodiment, the air blowing mechanism 72 includes an air collecting tank 721, on which an air distribution pipe 722 is provided. Each air distribution pipe 722 is provided with an electrically controlled air valve 723, and each electrically controlled air valve 723 is provided with an air blowing nozzle 724 at its outlet end. During air blowing sorting, the air collecting tank 721 provides clean high-pressure gas. When the material to be screened passes above the air blowing nozzle 724, the electrically controlled air valve 723 opens, and the gas blows the material to be screened driven by the conveyor roller group 5. The material to be screened flies up and falls into the sorting conveyor mechanism 71.

[0071] Specifically, the gas collection tank 721 can be a pressurized tank, which can store gas and can also be connected to an external gas source; the gas distribution pipe 722 can evenly distribute the gas to the corresponding air nozzles 724; the electrically controlled air valve 723 can precisely control the blowing time of the air nozzles 724; the electrically controlled air valve 723 is connected to the controller, and under the control of the controller, the air is blown to the specific air nozzles 724, thereby realizing the directional sorting of the corresponding materials.

[0072] In this embodiment, the top-view projections of the sorting and conveying mechanism 71 and the air blowing mechanism 72 do not overlap. Specifically, when the material does not need to be sorted, according to the material conveying direction, the material to be screened first passes above the air blowing mechanism 72 and then below the sorting and conveying mechanism 71; the projections of the sorting and conveying mechanism 71 and the air blowing mechanism 72 do not overlap, and there is a distance between them; this allows the material to move in the air after being blown up by the air blowing mechanism 72, and then fall into the sorting and conveying mechanism 71.

[0073] In this embodiment, there is a gap in the conveyor roller group 5, and the air nozzle 724 is located at the gap of the conveyor roller group 5.

[0074] In this embodiment, the conveyor roller group 5 is a device composed of a material support roller and a conveyor belt. There is a gap between the material support rollers, which makes it easy for the air nozzle 724 to blow the material up at the gap.

[0075] In this embodiment, the conveying direction of the conveying roller group 5 is perpendicular to the conveying direction of the sorting conveying mechanism 71. Specifically, the perpendicularity between the conveying roller group 5 and the sorting conveying mechanism 71 facilitates the material on the sorting conveying mechanism 71 to leave the area above the conveying roller group 5 via the shortest path, thereby improving sorting efficiency.

[0076] In this embodiment, a control host is also included, which is electrically connected to the material lifting unit 1, the material arrangement unit 2, the circulation unit 3, the conveying roller group 5, the visual inspection mechanism 6, and the air blowing sorting unit 7.

[0077] Specifically, the control host can judge the quality of the jujube material based on the image information collected by the visual inspection mechanism 6, and then control the air-blowing sorting unit 7 to perform air-blowing sorting on specific jujube materials to achieve the screening action.

[0078] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by the spirit of this utility model.

Claims

1. An automated red date screening device, characterized in that, Along the material conveying direction, the assembly includes, in sequence, a material lifting unit (1), a material arrangement unit (2), a circulation unit (3), a conveying roller group (5), a visual inspection mechanism (6), and an air-blowing sorting unit (7); the material arrangement unit (2) includes at least one layer of uniform distribution mechanism (213) and a bottom layer of arrangement mechanism (215); the air-blowing sorting unit (7) includes multiple sorting conveying mechanisms (71) and an air-blowing mechanism (72) located at each sorting conveying mechanism (71); During screening, the material lifting unit (1) lifts and conveys the material to the material distribution unit (2) for material distribution. The material distribution unit (2) then sends the distributed material to the conveying roller group (5). During the distribution process, excess material in the distribution mechanism (213) falls down step by step and finally falls into the bottom distribution mechanism (215). Excess material in the bottom distribution mechanism (215) falls into the circulation unit (3). The circulation unit (3) collects the material falling from the bottom distribution mechanism (215) and conveys it to the material lifting unit (215). 1) The conveyor roller group (5) drives the arranged material to move and pass through the inspection mechanism (6) to obtain material information. When the conveyor roller group (5) drives the material waiting to be screened after inspection to pass above the air blowing mechanism (72) at the sorting conveyor (71), the air blowing mechanism (72) blows the moving material to be screened from below the material so that the specific material flies up from the conveyor roller group (5) and falls into the sorting conveyor (71); the multiple sorting conveyors (71) respectively convey the sorted material out of the equipment.

2. The automatic red date screening device according to claim 1, characterized in that, The feeding port of the uniform distribution mechanism (213) is provided with a uniform distribution guide plate (211), and the feeding port of the bottom layer distribution mechanism (215) is provided with a bottom layer guide plate (212); the uniform distribution guide plate (211) and the bottom layer guide plate (212) are both connected to the discharge end of the lifting unit (1); the lifting unit (1) includes a lifting mechanism (11) and a conveying mechanism (12); the lifting mechanism (11) lifts the material to be uniformly distributed to a predetermined height and sends the material into the feeding end of the conveying mechanism (12); the conveying mechanism (12) sends the material to the uniform distribution guide plate (211) and the bottom layer guide plate (212).

3. The automated red date screening device according to claim 1, wherein, The uniform distribution mechanism (213) includes multiple parallel uniform distribution conveyor belts, with gaps reserved between the uniform distribution conveyor belts for material to fall; the bottom layer arrangement mechanism (215) includes multiple parallel bottom layer conveyor belts, with gaps reserved between the bottom layer conveyor belts for material to fall; each of the uniform distribution conveyor belts and the bottom layer conveyor belts is provided with multiple cloth brushes (214). As the material is moved by the uniformly distributed conveyor belt and the bottom conveyor belt, the cloth brush (214) flattens the stacked material or pushes it to the gaps to fall.

4. The automatic red date screening device according to claim 3, characterized in that, The uniformly distributed conveyor belt is also provided with multiple material dropping plates (217) and material dropping guide plates (216); the material falls from the uniformly distributed conveyor belt into the gap, and is diverted by the material dropping plates (217) to the material dropping guide plates (216). The material dropping guide plates (216) guide the material into the next layer of uniformly distributed mechanism (213) until the material falls into the bottom layer of arrangement mechanism (215).

5. The automated red date sorting device according to claim 1, wherein, The circulation unit (3) includes a first circulation conveyor belt (31), a circulation elevator (32), and a second circulation conveyor belt (33). The first circulation conveyor belt (31) is located below the bottom arrangement mechanism (215), the circulation elevator (32) is located at the discharge end of the first circulation conveyor belt (31), and the second circulation conveyor belt (33) is located at the discharge end of the circulation elevator (32). The second circulation conveyor belt (33) delivers the recovered material to the lifting unit (1) to complete the circulation.

6. The automated red date sorting device according to claim 1, wherein, It also includes a frame (9), on which the conveyor roller group (5), the visual inspection mechanism (6) and the air-blowing sorting unit (7) are all mounted; the frame (9) is also equipped with a rotating roller structure (8) and a material roller drive mechanism (4) for driving the conveyor roller group (5). During visual inspection, the material roller drive mechanism (4) drives the conveyor roller group (5) to move and convey the material to be inspected. When the material to be inspected moves to the rotating roller structure (8), the rotating roller structure (8) causes the conveyor roller group (5) to rotate, thereby driving the material to be inspected to rotate. The visual inspection mechanism (6) collects image information of the rotating material for visual inspection.

7. The automated red date sorting device according to claim 1, wherein, The conveying roller group (5) includes multiple roller seats (53) that are driven and connected to the execution end of the roller drive mechanism (4). Each roller seat (53) is rotatably mounted with a roller (52). The end of the roller (52) is provided with a rotating gear (51). During visual inspection, the roller drive mechanism (4) drives the roller seat (53) to move, thereby driving the roller (52) to move. When the roller (52) moves to the rotating roller structure (8), the rotating gear (51) contacts the rotating roller structure (8) to make the roller (52) rotate, thereby rotating the material to be inspected. The roller structure (8) includes a rack frame (81) and a roller rack (82) mounted on the rack frame (81); the rack frame (81) is mounted on the frame (9) and located on the side of the conveyor roller group (5); when the material roller drive mechanism (4) drives the material roller seat (53) to move to the roller rack (82) and continues to move, the roller rack (82) meshes with the material transfer gear (51) to make the material roller (52) rotate.

8. The automated red date sorting device according to claim 1, wherein, The air blowing mechanism (72) includes an air collection tank (721), on which an air distribution pipe (722) is provided. Each air distribution pipe (722) is provided with an electrically controlled air valve (723), and each electrically controlled air valve (723) is provided with an air blowing nozzle (724) at its air outlet end. During air-blowing sorting, the air collection tank (721) provides clean high-pressure gas. When the material to be screened passes above the air nozzle (724), the electrically controlled air valve (723) opens, and the gas blows the material to be screened driven by the conveyor roller group (5). The material to be screened flies up and falls into the sorting conveyor mechanism (71).

9. The automated red date sorting device according to claim 8, wherein, There is a gap in the conveying roller group (5), and the air nozzle (724) is located at the gap of the conveying roller group (5).

10. The automated red date sorting device according to claim 1, wherein, It also includes a control host, which is electrically connected to the material lifting unit (1), the material arrangement unit (2), the circulation unit (3), the conveying roller group (5), the visual inspection mechanism (6), and the air blowing sorting unit (7).

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