Automatic red date screening method and system

Abstract

The invention relates to the technical field of red date processing, in particular to an automatic red date screening method and system.The automatic red date screening method comprises the following specific steps that S1, a material lifting unit lifts and conveys materials to a material arrangement unit for material arrangement; s2, a uniform distribution mechanism and a bottom layer distribution mechanism drive the materials to move towards a conveying roller set; s3, the materials are conveyed to a conveying roller set; collecting redundant materials; s4, the circulating unit sends the fallen materials back to the material lifting unit; the visual inspection mechanism obtains material information; s5, the air blowing mechanism blows the moving materials from the position below the materials, so that the specific materials fly up from the conveying roller set and fall into the sorting and conveying mechanism; s6, the multiple sorting and conveying mechanisms convey the materials out of the equipment; according to the automatic feeding device, automatic feeding of materials is achieved, a multi-layer arrangement structure is adopted, multiple times of recycling of the materials are avoided, and damage caused by collision is reduced; the material arrangement speed is increased, the longitudinal space is reasonably utilized, the occupied equipment size is reduced, unmanned rapid sorting and classification are carried out, and the overall material sorting efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of red date processing, and in particular to an automatic red date screening method and system. Background Art

[0002] After being picked, red dates are typically sorted by size, quality, color, and other characteristics to ensure that each grade meets the corresponding standards, thereby improving the overall quality of the product. Currently, red dates are usually sorted manually, which is not only time-consuming and labor-intensive, but also inefficient. The manual sorting process can also cause secondary damage to the dates.

[0003] Chinese invention patent publication number CN110530290A discloses a date sorting device, comprising a feed hopper, a feeder, an arrangement mechanism, and a sorting mechanism. The feed hopper is equipped with a first vibrating hopper at its discharge end, which connects to the feeder's feed end. The discharge end of the feeder connects to a second vibrating hopper, and the discharge end of the feeder connects to multiple arrangement mechanisms arranged side by side. The arrangement mechanism comprises a frame and a double-row conveyor chain. The double-row conveyor chain is mounted on the frame, and the double-row conveyor chain is equipped with a plurality of rollers arranged side by side, with their axes perpendicular to the conveying direction of the double-row conveyor chain. Drums are symmetrically positioned at each end of the rollers, and the gaps between adjacent drums on adjacent rollers are used to clamp the dates. Guard plates are symmetrically mounted on the outer sides of the double-row conveyor chain, forming a material guide channel. The sorting mechanism comprises a camera recognition area, a spray valve, and a waste recovery conveyor belt. This invention has a high degree of automation, good sorting results, and improved work efficiency.

[0004] In the above technology, the material guiding channel is set up in a single layer. Although there are multiple material guiding channels, the single arrangement of red dates material is still limited in quantity, the overall arrangement efficiency is low, and it needs to be recovered and rearranged more times, which will cause the red dates material to fall or roll frequently, thereby affecting the quality of the red dates product; Regarding the sorting of red dates material, it adopts spray valves in conjunction with double-row conveyor chains running through the whole for sorting. In addition, if multiple conveyor lines are used, more spray valves and related collecting hoppers need to be set up; Regarding equipment installation and site space, there is a certain gap between the double-chain conveyor lines in the above technology, so the overall equipment occupies a large space, and the spray valves and other hoppers required for red date sorting are relatively expensive, and the number is large, the wiring is complicated, and the difficulty of maintenance and inspection increases.

[0005] Therefore, it is urgent to develop a technical solution to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an automated red date screening method and system, realize automatic loading of materials, multi-layer arrangement structure, avoid multiple recycling cycles of materials, reduce damage caused by bumps; improve material arrangement speed, rationally utilize longitudinal space, reduce equipment volume occupancy, perform unmanned rapid sorting and classification, and improve overall material sorting efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An automated red date screening method includes, along the material conveying direction, a material lifting unit, a material arrangement unit, a circulation component, 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 arrangement mechanism; the specific steps are as follows:

[0009] S1. The lifting unit lifts the material to be screened and transports it to the uniform distribution mechanism and the bottom arrangement mechanism for material arrangement;

[0010] S2. The uniform distribution mechanism and the bottom arrangement mechanism drive the material to be screened to move toward the conveying roller group;

[0011] S3. When the material to be screened is moving, the arranged material is sent to the conveyor roller group by the uniform distribution mechanism and the bottom distribution mechanism; the excess material in the uniform distribution mechanism falls step by step and eventually falls into the bottom distribution mechanism, and the excess material at the bottom distribution mechanism falls into the circulation unit;

[0012] S4. The circulation unit returns the fallen material to the lifting unit to circulate the material to be screened; the conveyor roller group drives the arranged material to move and pass through the inspection mechanism to obtain material information;

[0013] S5. When the conveyor rollers drive the inspected materials waiting for screening over the air blowing mechanism in the air blowing sorting unit, the air blowing mechanism blows the materials from below, causing the materials to fly off the conveyor rollers and fall onto the sorting conveyor mechanism.

[0014] S6. The plurality of sorting and conveying mechanisms convey the screened materials out of the equipment.

[0015] Furthermore, the uniform distribution mechanism is provided with a uniform distribution guide plate at the material inlet, and the bottom layer arrangement mechanism is provided with a bottom layer guide plate at the material inlet; the uniform distribution guide plate and the bottom layer guide plate are both overlapped at the material discharge end of the lifting unit; the lifting unit includes a lifting mechanism and a feeding mechanism; in S, it also includes:

[0016] S11. The lifting mechanism lifts the material to be evenly distributed to a predetermined height and feeds the material into the feed end of the feed mechanism;

[0017] S12. The material conveying mechanism delivers the material to be screened to the uniform distribution guide plate and the bottom guide plate, so that the material to be screened is distributed and arranged.

[0018] Furthermore, the uniform distribution mechanism includes a plurality of uniformly distributed conveyor belts arranged in parallel, with gaps reserved between the uniformly distributed conveyor belts for materials to fall through; the bottom layer arrangement mechanism includes a plurality of bottom layer conveyor belts arranged in parallel, with gaps reserved between the bottom layer conveyor belts for materials to fall through; each of the uniformly distributed conveyor belts and the bottom layer conveyor belt is provided with a plurality of distribution brushes;

[0019] In S3, when the uniformly distributed conveyor belt and the bottom conveyor belt move the materials to be screened, the material brush flattens the stacked materials or pushes them to the gaps and drops them down.

[0020] Furthermore, the uniformly distributed conveyor belt is also provided with a plurality of material separation plates and material drop guide plates; the material to be screened falls into the gap from the uniformly distributed conveyor belt, and is diverted by the material separation plates to the material drop guide plates, and the material drop guide plates guide the material into the next layer of uniform distribution mechanism until the material falls into the bottom layer arrangement mechanism.

[0021] Furthermore, the circulation unit includes a circulating first conveyor belt, a circulating elevator and a circulating second conveyor belt; the circulating first conveyor belt is arranged below the bottom arrangement mechanism, the circulating elevator is arranged at the discharge end of the circulating first conveyor belt, and the circulating second conveyor belt is arranged at the discharge end of the circulating elevator; in S4, it also includes:

[0022] S41. The first circulating conveyor belt receives the material to be screened from the bottom arrangement mechanism;

[0023] S42. The first circulating conveyor belt will take over the material to be screened and send it to the circulating elevator;

[0024] S43. The circulating elevator sends the materials to be screened back to the lifting unit to circulate and lift the fallen materials to be screened and arrange them.

[0025] Furthermore, it also includes a frame, on which the conveying roller group, the visual inspection mechanism and the air-blowing sorting unit are all installed; the frame is also equipped with a rotating roller structure and a material roller driving mechanism for driving the conveying roller group; in S4, it also includes:

[0026] S44. The roller drive mechanism drives the conveyor roller group to translate and convey the material to be inspected. When the material to be inspected moves to the roller structure, the roller structure causes the conveyor roller group to rotate so that the material to be inspected rotates;

[0027] S45. The visual inspection mechanism collects image information of the rotating material to be inspected for visual inspection.

[0028] Furthermore, the conveying roller group includes a plurality of material roller seats that are drivably connected to the execution end of the material roller driving mechanism, a material roller is rotatably mounted on each of the material roller seats, and a material transfer gear is provided at the end of the material roller; during visual inspection, the material roller driving mechanism drives the material roller seat to move and thereby drives the material roller to move, and when the material roller moves to the rotating roller structure, the material transfer gear contacts the rotating roller structure to rotate the material roller, thereby rotating the material to be inspected;

[0029] The roller structure includes a rack frame and a roller rack installed on the rack frame; the rack frame is installed on the frame body and is located on the side of the conveying roller group; when the material roller driving mechanism drives the material roller seat to move to the roller rack and continues to move, the roller rack engages with the material transfer gear to make the material roller rotate.

[0030] Furthermore, the air blowing mechanism includes an air collecting tank body, the air collecting tank body is provided with an air distribution pipe, each of the air distribution pipes is provided with an electric control air valve, and the air outlet end of each electric control air valve is provided with an air blowing nozzle; there is a gap in the conveying roller group, and the air blowing nozzle is located in the gap of the conveying roller group;

[0031] The gas collecting tank provides clean high-pressure gas. When the material to be screened passes over the air blowing nozzle, the electrically controlled air valve opens, and the gas blows the material to be screened driven by the conveying roller group, causing the material to fly up and fall into the sorting and conveying mechanism.

[0032] Furthermore, it also includes a control host, which is electrically connected to the material lifting unit, the material arrangement unit, the circulation component, the conveying roller group, the visual inspection mechanism and the air blowing sorting unit.

[0033] An automated red date screening system is used to implement the above-mentioned automated red date screening method, and includes a material lifting unit, a material arrangement unit, a circulation component, a conveying roller group, a visual inspection mechanism and an air blowing sorting unit in sequence along the material conveying direction; the material arrangement unit includes at least one layer of uniform distribution mechanism and a bottom layer arrangement mechanism.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] In actual use, the lifting mechanism lifts and conveys materials to realize automatic loading of materials, so as to adapt to the needs of large-scale red dates screening operations and improve loading efficiency; the uniform distribution mechanism and the bottom arrangement mechanism form a multi-layer arrangement structure, which can work together to collect the fallen materials and realize the rearrangement of materials before recycling, avoiding multiple recycling cycles of materials, reducing the number of cycles, and avoiding multiple collisions and damage of materials; the circulation unit and the lifting unit realize the automatic circulation of the conveying device, increase the material arrangement speed, and improve the overall material conveying efficiency; the conveying roller group and the inspection mechanism work together to carry out Visual inspection of materials to obtain image information of red dates materials; the air blowing mechanism cooperates with the conveyor roller group to realize the air blowing action on the materials that have completed visual inspection and are waiting for sorting in motion, and the sorting efficiency is improved through online air blowing; the air blowing mechanism, conveyor roller group and sorting and conveying mechanism adopt a layered layout to rationally utilize the longitudinal space and reduce the volume occupied by the equipment; and multiple sorting and conveying mechanisms can convey materials with various visual inspection results. When the corresponding type of materials to be screened are moved to the sorting and conveying mechanism, the air blowing mechanism blows the materials to realize multi-level and rapid sorting of materials, and perform unmanned and rapid sorting and classification, thereby improving the overall material sorting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0037] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0038] Figure 3 A schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0039] Figure 4 It is a schematic diagram of the three-dimensional structure of the material arrangement unit of the present invention;

[0040] Figure 5 This is a schematic diagram of the three-dimensional structure of the material arrangement unit of the present invention from another perspective;

[0041] Figure 6 for Figure 5 The enlarged schematic diagram of point D in the middle;

[0042] Figure 7 This is a partial planar structural diagram of the material arrangement unit of the present invention;

[0043] Figure 8 It is a schematic diagram of the three-dimensional structure of the visual inspection unit of the present invention;

[0044] Figure 9 for Figure 8 The enlarged schematic diagram of point B in the middle;

[0045] Figure 10 for Figure 8The enlarged schematic diagram of point C in the middle;

[0046] Figure 11 It is a schematic diagram of the three-dimensional structure of the air-blowing sorting unit of the present invention;

[0047] Figure 12 for Figure 11 A in the middle is an enlarged schematic diagram;

[0048] Figure 13 This is a schematic diagram of the working principle of the air-blowing sorting unit. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] refer to Figure 1-13 As shown, an automated red date screening method includes, along the material conveying direction, a material lifting unit 1, a material arrangement unit 2, a circulation component 3, a conveying roller group 5, an 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 arrangement mechanism 215; the specific steps are as follows:

[0051] S1. The material lifting unit 1 lifts the material to be screened and transports it to the uniform distribution mechanism 213 and the bottom arrangement mechanism 215 for material arrangement;

[0052] S2. The uniform distribution mechanism 213 and the bottom arrangement mechanism 215 drive the material to be screened to move toward the conveyor roller group 5;

[0053] S3. When the material to be screened is moved, the arranged material is sent to the conveyor roller group 5 by the uniform distribution mechanism 213 and the bottom distribution mechanism 215; the excess material in the uniform distribution mechanism 213 falls step by step and eventually falls into the bottom distribution mechanism 215, and the excess material at the bottom distribution mechanism 215 falls into the circulation unit 3;

[0054] S4. The circulation unit 3 returns the fallen material to the lifting unit 1 so that the material to be screened is arranged in a cycle; the conveyor roller group 5 drives the material to move after the arrangement and passes through the inspection mechanism 6 to obtain material information;

[0055] S5. When the inspected materials awaiting screening are driven by conveyor roller assembly 5 and pass over the air blowing mechanism 72 in the air blowing sorting unit 7, the air blowing mechanism 72 blows the materials from below, causing the materials to fly off conveyor roller assembly 5 and fall onto the sorting conveyor mechanism 71.

[0056] S6. The plurality of sorting and conveying mechanisms 71 convey the screened materials out of the equipment.

[0057] Specifically, the uniform distribution mechanism 213 may be a multi-layer design. In this embodiment, only one layer of the uniform distribution mechanism 213 combined with the bottom layer arrangement 215 is used to illustrate the technical solution.

[0058] In this automated red date screening method, the material lifting mechanism 1 lifts and conveys the material to realize the automatic loading of the material, so as to adapt to the needs of large-scale red date screening operations and improve the loading efficiency; the uniform distribution mechanism 213 and the bottom arranging mechanism 215 form a multi-layered arrangement structure, which can work together to collect the fallen materials to be arranged, and realize the rearrangement of the materials before recycling, thereby avoiding multiple recycling cycles of the materials, reducing the number of cycles, and avoiding multiple collisions and damage of the materials; the circulation unit 3 and the lifting unit 1 realize the automatic circulation of the conveying device, thereby increasing the material arrangement speed and improving the overall material conveying efficiency; the conveying roller group 5 and the visual inspection mechanism 6 work together to convey the materials at the same time. The visual inspection of the materials is carried out at the same time to obtain the picture information of the red dates materials; the air blowing mechanism 72 cooperates with the conveying roller group 5 to realize the air blowing action on the materials that have completed the visual inspection and are waiting for sorting during movement, and the sorting efficiency is improved by online air blowing; the air blowing mechanism 72, the conveying roller group 5 and the sorting and conveying mechanism 7 adopt a layered layout, which rationally utilizes the longitudinal space and reduces the volume occupied by the equipment; and multiple sorting and conveying mechanisms 71 can convey materials with various visual inspection results. When the corresponding type of materials to be screened are moved to the sorting and conveying mechanism 71, the air blowing mechanism 72 blows the materials to realize multi-level and rapid sorting of materials, and perform unmanned rapid sorting and classification, thereby improving the overall material sorting efficiency.

[0059] In this embodiment, the uniform distribution mechanism 213 is provided with a uniform distribution guide plate 211 at the inlet, and the bottom layer arrangement mechanism 215 is provided with a bottom layer guide plate 212 at the inlet; the uniform distribution guide plate 211 and the bottom layer guide plate 212 are both overlapped at the discharge end of the lifting unit 1; the lifting unit 1 includes a lifting mechanism 11 and a feeding mechanism 12; in S1, it also includes:

[0060] S11. The lifting mechanism 11 lifts the material to be evenly distributed to a predetermined height and feeds the material into the feed end of the feeding mechanism 12;

[0061] S12. The material conveying mechanism 12 conveys the material to be screened to the uniform distribution guide plate 211 and the bottom guide plate 212 so that the material to be screened is distributed and arranged.

[0062] Specifically, the uniformly distributed guide plate 211 and the bottom guide plate 212 are arranged in layers, which can realize material diversion in the feeding stage, avoid excessive accumulation of materials on the uniformly distributed mechanism 213, and affect the material arrangement effect; specifically, the lifting mechanism 1 can adopt an electrically driven loading elevator, and the feeding mechanism 12 can adopt an electrically driven conveyor belt assembly; the lifting mechanism 1 and the feeding mechanism 12 work together to automatically lift the material, and the feeding mechanism 12 performs a certain form of parallel transportation to pre-sort the material, avoid accumulation to a certain extent, and then evenly deliver the material to the uniformly distributed guide plate 211 and the bottom guide plate 212, so that the material enters the uniformly distributed mechanism 213 and the bottom arrangement mechanism 215.

[0063] In this embodiment, the uniform distribution mechanism 213 includes a plurality of parallel uniform distribution conveyor belts, with gaps reserved between the uniform distribution conveyor belts for materials to fall through; the bottom layer arrangement mechanism 215 includes a plurality of parallel bottom layer conveyor belts, with gaps reserved between the bottom layer conveyor belts for materials to fall through; each of the uniform distribution conveyor belts and the bottom layer conveyor belt is provided with a plurality of distribution brushes 214;

[0064] In S3 , when the uniformly distributed conveyor belt and the bottom conveyor belt move the materials to be screened, the material distribution brush 214 flattens the stacked materials or pushes them to the gaps and drops them down.

[0065] Specifically, the uniform distribution conveyor belt in the uniform distribution mechanism 213 and the bottom conveyor belt in the bottom distribution mechanism 215 can both adopt electrically driven conveyor belt components, and the materials are driven by the uniform distribution conveyor belt and the bottom conveyor belt, and the cloth brush 214 gently flicks and stirs the materials, which not only stirs the stacked materials to make them flat, or knocks the excess materials into the lower layer through the gap, but also performs the initial removal of floating dust and impurities on the flat materials, thereby improving the efficiency of subsequent material processing and avoiding mixing with other debris; specifically, the bottom conveyor belt in the bottom distribution mechanism 215 can adopt electrically driven conveyor belt components, and the cloth brush 214 on the bottom conveyor belt gently flicks and stirs the materials, which not only stirs the stacked materials to make them flat, but also knocks the excess materials into the circulation unit 3 through the gap.

[0066] In this embodiment, a plurality of material separation plates 217 and material guide plates 216 are also provided at the uniformly distributed conveyor belt; the material to be screened falls into the gap from the uniformly distributed conveyor belt, and is diverted by the material separation plates 217 to the material guide plates 216. The material guide plates 216 guide the material into the next layer of uniform distribution mechanism 213 until the material falls into the bottom layer arrangement mechanism 215.

[0067] Specifically, the material separation plate 217 is used to divert the excess material that has fallen, so as to prevent the material from falling together and piling up again; the material guide plate 216 can guide the material that has been diverted by the material separation plate 217 to the lower-level uniform distribution mechanism 213. If the uniform distribution mechanism 213 has only one layer, the material will be guided to the bottom-level arrangement mechanism 215.

[0068] In this embodiment, the circulation unit 3 includes a circulating first conveyor belt 31, a circulating elevator 32 and a circulating second conveyor belt 33; the circulating first conveyor belt 31 is arranged below the bottom arrangement mechanism 215, the circulating elevator 32 is arranged at the discharge end of the circulating first conveyor belt 31, and the circulating second conveyor belt 33 is arranged at the discharge end of the circulating elevator 32; in S4, it also includes:

[0069] S41. The circulating first conveyor belt 31 receives the materials to be screened that fall from the bottom arrangement mechanism 215; S42. The circulating first conveyor belt 31 delivers the received materials to be screened to the circulating elevator 32; S43. The circulating elevator 32 delivers the materials to be screened to the lifting unit 1 again to circulate and lift the fallen materials to be screened and arrange them.

[0070] Specifically, the first conveyor belt 31 can adopt an electrically driven conveyor belt assembly, the circulating elevator 32 can adopt a combination assembly of a conveyor belt and an elevator, and the circulating second conveyor belt 33 can adopt 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, and the circulating elevator 32 automatically transports and lifts the recovered materials to the circulating second conveyor belt 33, and the circulating second conveyor belt 33 sends the materials to the lifting unit 1 to complete the recycling, thereby improving the overall recycling efficiency.

[0071] In this embodiment, the projected area of ​​the circulating first conveyor belt 31 is larger than the projected area of ​​the bottom arrangement mechanism 215. Specifically, the actual conveying area of ​​the circulating first 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 circulating first conveyor belt 31, thereby improving circulation efficiency and preventing materials from accumulating and falling in a single location.

[0072] In this embodiment, the discharge ends of the uniform distribution mechanism and the bottom layer arrangement mechanism are both provided with a material guide conveyor belt 22, and the material guide conveyor belt delivers the material to the conveying roller group.

[0073] With the coordinated work of the material lifting unit 1, the material arrangement unit 2 and the circulation unit 3, the red dates are evenly arranged and the red dates are evenly and neatly arranged at the conveying roller group 5 for subsequent conveying, visual inspection and screening operations.

[0074] In this embodiment, a frame 9 is further included, on which the conveying roller group 5, the visual inspection mechanism 6 and the air-blowing sorting unit 7 are all mounted; a rotating roller structure 8 and a material roller driving mechanism 4 for driving the conveying roller group 5 are also mounted on the frame 9; in S4, the following is also included:

[0075] S44. The material roller drive mechanism 4 drives the conveying roller group 5 to convey the material to be inspected in a horizontal manner. When the material to be inspected moves to the rotating roller structure 8, the rotating roller structure 8 causes the conveying roller group 5 to rotate so that the material to be inspected rotates; S45. The inspection mechanism 6 collects image information of the rotating material to be inspected for visual inspection.

[0076] Specifically, the material roller drive mechanism 4 drives the conveyor roller group 5 to perform the translational transfer of the material to be inspected, thereby realizing fast and stable automated transportation; 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 capture images of multiple surfaces of the material to be inspected, thereby improving the efficiency of obtaining material information and improving the quality of visual recognition; and the rotating material can shed some of the attached dust or debris, thereby reducing visual recognition misjudgments and improving the overall material time efficiency.

[0077] In this embodiment, the material roller driving mechanism 4 includes a material roller driving device 41 and a material roller circulating chain 42 driven by the execution end of the material roller driving device 41; the conveying roller group 5 is installed on the material roller circulating chain 42; during visual inspection, the material roller driving device 41 drives the material roller circulating chain 42 to rotate, thereby driving the conveying material roller 5 to move.

[0078] Specifically, the material roller driving device 41 can adopt a motor, and the output end of the motor drives the material roller circulation chain 42 through the synchronous wheel, and the material roller circulation chain 42 drives the conveying roller group 5 to move in a circular manner, thereby realizing the conveying movement of the material.

[0079] In this embodiment, the conveying roller group 5 includes a plurality of material roller seats 53 that are driven and connected to the execution end of the material roller driving mechanism 4. A material roller 52 is rotatably mounted on each of the material roller seats 53, and a material transfer gear 51 is provided at the end of the material roller 52. During visual inspection, the material roller driving mechanism 4 drives the material roller seat 53 to move and thereby drives the material roller 52 to move. When the material roller 52 moves to the rotating roller structure 8, the material transfer gear 51 contacts the rotating roller structure 8 to rotate the material roller 52, thereby rotating the material to be inspected.

[0080] 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 transfer gear 51 is released from the 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; thereby improving the efficiency and accuracy of image collection for visual inspection.

[0081] In this embodiment, the roller structure 8 includes a rack frame 81 and a roller rack 82 installed on the rack frame 81; the rack frame 81 is installed on the frame body 9 and is located on the side of the conveying roller group 5; when the material roller driving mechanism 4 drives the material roller seat 53 to move to the roller rack 82 and continues to move, the roller rack 82 engages with the material transfer gear 51 to rotate the material roller 52.

[0082] Specifically, the setting position of the roller rack 82 corresponds to the position of the material transfer gear 51. The engagement of the roller rack 82 with the material transfer gear 51 allows the material roller 52 to continuously rotate within the roller rack 82, so that the material rotates, falls off debris, and improves the inspection efficiency and quality of the material.

[0083] In this embodiment, the feed rollers 52 of the same-side feed gears 51 are spaced apart. Specifically, this prevents interference between the feed gears 51 on the same side, improving the operational stability of the conveyor roller assembly 5. The feed gears 51 are evenly distributed on both sides to prevent contact between one side and the feed roller structure 8, which could cause the entire conveyor roller assembly 5 to deflect, thereby improving overall operational stability.

[0084] In this embodiment, the visual inspection mechanism 6 includes a visual inspection camera 62, and the visual inspection camera 62 is installed on the frame 9 using a camera bracket 61; during visual inspection, under the drive of the material roller drive mechanism 4, the roller structure 8 drives the conveying roller group 5 to rotate, and the stroke covers the collection range of the visual inspection camera 62.

[0085] Specifically, the camera bracket 61 can set up the inspection camera 62 above the conveying roller group 5, and the rotating roller structure 8 makes the rotation range of the conveying roller group 5 cover the collection range of the inspection camera 62, ensuring that the image information of the material collected by the inspection camera 62 is all the material in the rolling state, thereby improving the inspection efficiency and quality.

[0086] The visual inspection mechanism 6 obtains the image information of the material, and the material that has completed the visual inspection continues to be transported by the conveying roller group 5 until it is transported to the air blowing sorting unit 7, where the material after visual inspection is classified and sorted accordingly to complete the screening.

[0087] In this embodiment, multiple sorting and conveying mechanisms 71 are mounted above the conveying roller group 5 for conveying materials, and each sorting and conveying mechanism 71 is provided with an air blowing mechanism 72, and the air blowing mechanism 72 is provided below the conveying roller group 5; during sorting, the conveying roller group 5 drives the material to be sorted to move, and 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 the material, so that the material to be sorted flies up from the conveying roller group 5 and falls into the sorting and conveying mechanism 71.

[0088] Specifically, the conveying roller group 5 is composed of a supporting roller and a material roller driving mechanism 4. The material roller driving mechanism 4 is a motor to realize parallel transportation of the materials to be sorted; the sorting and conveying mechanism 71 can adopt a conveying belt device to realize the transmission of the sorted materials; the air blowing mechanism 72 cooperates with the conveying roller group 5 to realize air blowing of the materials to be sorted in motion, and improves the sorting efficiency through online air blowing; the air blowing mechanism 72, the conveying roller group 5 and the sorting and conveying mechanism 7 adopt a layered layout, rationally utilize the longitudinal space, and reduce the volume occupied by the equipment; and multiple sorting and conveying mechanisms 71 can transport materials of various quality types. When the corresponding type of materials to be sorted are moved to the sorting and conveying mechanism 71, the air blowing mechanism 72 blows the materials to realize multi-level and rapid sorting of materials, and perform unmanned rapid sorting and classification, thereby improving the overall material sorting efficiency.

[0089] In this embodiment, the air blowing mechanism 72 includes an air collecting tank body 721, and an air distribution pipe 722 is opened on the air collecting tank body 721. Each of the air distribution pipes 722 is provided with an electric-controlled air valve 723, and the air outlet end of each of the electric-controlled air valves 723 is provided with an air blowing nozzle 724; during air blowing sorting, the air collecting tank body 721 provides clean high-pressure gas. When the material to be screened passes over the air blowing nozzle 724, the electric-controlled air valve 723 opens, and the gas blows the material to be screened driven by the conveying roller group 5, and the material to be screened flies up and falls into the sorting and conveying mechanism 71.

[0090] Specifically, the gas collecting tank body 721 can be a pressurized tank body, 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 blowing nozzle 724; the electric-controlled air valve 723 can be precisely controlled to achieve precise control of the blowing time of the air blowing nozzle 724; the electric-controlled air valve 723 is connected to the controller, and under the control of the controller, air blowing is achieved on a specific air blowing nozzle 724, thereby achieving directional sorting of the corresponding materials.

[0091] In this embodiment, the top 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, the material to be sorted passes above the air blowing mechanism 72 and then passes below the sorting and conveying mechanism 71 in the material conveying direction. 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 be lifted by the air blowing mechanism 72, allowing it to move in the air and then fall into the sorting and conveying mechanism 71.

[0092] In this embodiment, there is a gap in the conveying roller set 5 , and the air blowing nozzle 724 is located in the gap of the conveying roller set 5 .

[0093] In this embodiment, the conveying roller set 5 is a device composed of supporting rollers and a conveyor belt. There is a gap between the supporting rollers, which makes it easier for the air blowing nozzle 724 to blow up the material at the gap.

[0094] In this embodiment, the conveying direction of the conveying roller set 5 is perpendicular to the conveying direction of the sorting conveying mechanism 71. Specifically, the conveying roller set 5 is perpendicular to the conveying direction of the sorting conveying mechanism 71, so that the materials on the sorting conveying mechanism 71 can leave the top of the conveying roller set 5 by the shortest path, thereby improving sorting efficiency.

[0095] 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 component 3, the conveying roller group 5, the inspection mechanism 6 and the air blowing sorting unit 7.

[0096] Specifically, the control host can judge the quality of the red date 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 the specific red date material to achieve screening action.

[0097] An automated red date screening system is used to implement the above-mentioned automated red date screening method, and includes a material lifting unit 1, a material arrangement unit 2, a circulation component 3, a conveying roller group 5, an inspection mechanism 6 and an air blowing sorting unit 7 along the material conveying direction; the material arrangement unit 2 includes at least one layer of uniform distribution mechanism 213 and a bottom layer arrangement mechanism 215.

[0098] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them with similar methods without departing from the scope defined by the spirit of the present invention.

Claims

1. An automated red date screening method, characterized in that: The system comprises, in sequence along the material conveying direction, a material lifting unit (1), a material arranging unit (2), a circulation component (3), a conveying roller group (5), a visual inspection mechanism (6), and an air blowing sorting unit (7); the material arranging unit (2) comprises at least one layer of uniform distribution mechanism (213) and a bottom layer of arranging mechanism (215); the specific steps are as follows: S1. The material lifting unit (1) lifts the material to be screened and transports it to the uniform distribution mechanism (213) and the bottom arrangement mechanism (215) for material arrangement; S2. The uniform distribution mechanism (213) and the bottom distribution mechanism (215) drive the material to be screened to move toward the conveyor roller group (5); S3. When the material to be screened is moved, the arranged material is sent to the conveying roller group (5) by the uniform distribution mechanism (213) and the bottom arrangement mechanism (215); the excess material in the uniform distribution mechanism (213) falls step by step and finally falls into the bottom arrangement mechanism (215), and the excess material at the bottom arrangement mechanism (215) falls into the circulation unit (3); S4. The circulation unit (3) returns the fallen material to the lifting unit (1) to allow the material to be screened to be arranged in a circular pattern; the conveying roller group (5) drives the arranged material to move and pass through the inspection mechanism (6) to obtain material information; S5. When the conveying roller group (5) drives the materials to be screened after visual inspection to pass over the air blowing mechanism (72) in the air blowing sorting unit (7), the air blowing mechanism (72) blows the materials to be screened from below the materials, so that the specific materials fly from the conveying roller group (5) and fall into the sorting conveying mechanism (71); S6. The plurality of sorting and conveying mechanisms (71) convey the screened materials out of the equipment.

2. The automated red date screening method according to claim 1, characterized in that: The uniform distribution mechanism (213) is provided with a uniform distribution guide plate (211) at the material inlet, and the bottom layer arrangement mechanism (215) is provided with a bottom layer guide plate (212) at the material inlet; the uniform distribution guide plate (211) and the bottom layer guide plate (212) are both overlapped at the material discharge end of the lifting unit (1); the lifting unit (1) includes a lifting mechanism (11) and a feeding mechanism (12); in S1, it also includes: S11. The lifting mechanism (11) lifts the material to be evenly distributed to a predetermined height and feeds the material into the feed end of the feeding mechanism (12); S12. The material conveying mechanism (12) conveys the material to be screened onto the uniform distribution guide plate (211) and the bottom guide plate (212) so that the material to be screened is distributed and arranged.

3. The automated red date screening method according to claim 1, characterized in that: The uniform distribution mechanism (213) includes a plurality of uniform distribution conveyor belts arranged in parallel, with gaps reserved between the uniform distribution conveyor belts for materials to fall through; the bottom layer arrangement mechanism (215) includes a plurality of bottom layer conveyor belts arranged in parallel, with gaps reserved between the bottom layer conveyor belts for materials to fall through; each of the uniform distribution conveyor belts and the bottom layer conveyor belt is provided with a plurality of distribution brushes (214); In S3, when the uniform conveyor belt and the bottom conveyor belt move the materials to be screened, the material brush (214) flattens the stacked materials or moves them to the gaps for them to fall.

4. The automated red date screening method according to claim 3, characterized in that: The uniformly distributed conveyor belt is also provided with a plurality of material separation plates (217) and material guide plates (216); the material to be screened falls into the gap from the uniformly distributed conveyor belt and is diverted by the material separation plates (217) to the material guide plates (216); the material guide plates (216) guide the material into the uniformly distributed mechanism (213) of the next layer until the material falls into the bottom arranging mechanism (215).

5. The automated red date screening method according to claim 1, characterized in that: The circulation unit (3) comprises a circulating first conveyor belt (31), a circulating elevator (32) and a circulating second conveyor belt (33); the circulating first conveyor belt (31) is arranged below the bottom arranging mechanism (215), the circulating elevator (32) is arranged at the discharge end of the circulating first conveyor belt (31), and the circulating second conveyor belt (33) is arranged at the discharge end of the circulating elevator (32); In S4, also included: S41. The first circulating conveyor belt (31) receives the material to be screened that falls from the bottom arrangement mechanism (215); S42. The first circulating conveyor belt (31) receives the material to be screened and sends it to the circulating elevator (32); S43. The circulating elevator (32) sends the materials to be screened back to the lifting unit (1) to circulate and lift the fallen materials to be screened and arrange them.

6. The automated red date screening method according to claim 1, characterized in that: The system further comprises a frame (9), 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 driving mechanism (4) for driving the conveying roller group (5); and in S4, further comprising: S44. The material roller drive mechanism (4) drives the conveyor roller group (5) to translate and convey the material to be inspected. When the material to be inspected moves to the roller structure (8), the roller structure (8) causes the conveyor roller group (5) to rotate so that the material to be inspected rotates; S45. The visual inspection mechanism (6) collects image information of the rotating material to be inspected for visual inspection.

7. The automated red date screening method according to claim 6, characterized in that: The conveying roller group (5) includes a plurality of material roller seats (53) connected to the execution end of the material roller driving mechanism (4), a material roller (52) is rotatably mounted on each material roller seat (53), and a material transfer gear (51) is provided at the end of the material roller (52); during visual inspection, the material roller driving mechanism (4) drives the material roller seat (53) to move and thereby drives the material roller (52) to move; when the material roller (52) moves to the rotating roller structure (8), the material transfer gear (51) contacts the rotating roller structure (8) to rotate the material roller (52), thereby rotating the material to be inspected; The roller structure (8) comprises a rack frame (81) and a roller rack (82) mounted on the rack frame (81); the rack frame (81) is mounted on a frame body (9) and is located on the side of the conveying roller group (5); when the material roller driving mechanism (4) drives the material roller seat (53) to move to the roller rack (82) and continues to move, the roller rack (82) engages with the material transfer gear (51) to rotate the material roller (52).

8. The automated red date screening method according to claim 1, characterized in that: The air blowing mechanism (72) comprises an air collecting tank (721), an air distribution pipe (722) is provided on the air collecting tank (721), each air distribution pipe (722) is provided with an electric control air valve (723), and an air blowing nozzle (724) is provided at the air outlet end of each electric control air valve (723); there is a gap in the conveying roller group (5), and the air blowing nozzle (724) is located in the gap of the conveying roller group (5); The gas 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 conveying roller group (5), causing the material to fly up and fall into the sorting and conveying mechanism (71).

9. The automated red date screening method according to claim 1, characterized in that: It also includes a control host, which is electrically connected to the material lifting unit (1), the material arrangement unit (2), the circulation component (3), the conveying roller group (5), the visual inspection mechanism (6) and the air blowing sorting unit (7).

10. An automated red date screening system, characterized in that: The method for implementing the automated red date screening method according to any one of claims 1 to 9 comprises, in sequence along the material conveying direction, a material lifting unit (1), a material arrangement unit (2), a circulation component (3), a conveying roller group (5), a visual inspection mechanism (6) and an air blowing sorting unit (7); the material arrangement unit (2) comprises at least one layer of uniform distribution mechanism (213) and a bottom layer arrangement mechanism (215).

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