WO2024082432A1 - Inspecteur de graines de soja - Google Patents

Inspecteur de graines de soja Download PDF

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Publication number
WO2024082432A1
WO2024082432A1 PCT/CN2022/141083 CN2022141083W WO2024082432A1 WO 2024082432 A1 WO2024082432 A1 WO 2024082432A1 CN 2022141083 W CN2022141083 W CN 2022141083W WO 2024082432 A1 WO2024082432 A1 WO 2024082432A1
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WO
WIPO (PCT)
Prior art keywords
tray
turntable
feeding
soybeans
support rod
Prior art date
Application number
PCT/CN2022/141083
Other languages
English (en)
Chinese (zh)
Inventor
李晓亮
董德良
兰盛斌
张华昌
李月
严晓平
罗海军
李炜
杨波
唐琦林
付迁
李兵
贺波
黄波
石恒
杨玉雪
Original Assignee
中储粮成都储藏研究院有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中储粮成都储藏研究院有限公司 filed Critical 中储粮成都储藏研究院有限公司
Priority to PCT/CN2022/141083 priority Critical patent/WO2024082432A1/fr
Publication of WO2024082432A1 publication Critical patent/WO2024082432A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/08—Screens rotating within their own plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/80—Turntables carrying articles or materials to be transferred, e.g. combined with ploughs or scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/23—Devices for tilting and emptying of containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
    • B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M7/00—Counting of objects carried by a conveyor

Definitions

  • the invention relates to the field of grain detection, and in particular to a soybean detector.
  • soybean quality when soybean quality is tested, it is mainly carried out according to GB1352-2009, in which the main indicators for judging soybean quality are: the proportion of intact grains, damaged grains and impurities, as well as moisture content, smell, color, etc.
  • the proportion of intact grains, damaged grains and impurities it is currently mainly identified by human eyes, and unqualified grains and impurities are manually removed, and then the proportion of each part is calculated by weighing or counting.
  • the disadvantage of human eye recognition is that it is easily affected by subjective consciousness, resulting in unstable test results and extremely low efficiency.
  • patent document (CN216792042U) discloses an instrument for detecting imperfect grains of wheat, which is mainly by feeding wheat one by one onto a glass turntable, and then taking pictures of the upper and lower sides of the wheat with a camera, and finally judging whether the wheat is an imperfect grain by image processing technology.
  • This solution can greatly improve the detection efficiency of wheat, but it is not suitable for soybean detection because soybeans and wheat have different shapes.
  • Complete soybeans are mostly spherical or ellipsoidal, with a small contact area with the glass turntable and easy to roll. It cannot be ensured that they are within the shooting range of the camera, and the rolling state is not conducive to shooting, which leads to inaccurate results.
  • the technical problem to be solved by the present invention is to provide a soybean detector which can improve the soybean detection efficiency and quality.
  • a soybean detector includes a feeding mechanism, a feeding mechanism, a detection mechanism and a discharging mechanism arranged in sequence along a detection path;
  • the feeding mechanism includes a feeding tray and a conveying mechanism that can drive the feeding tray to move in a circular manner, the bottom of the feeding tray is a transparent plane, and a fence is arranged around it;
  • the feeding mechanism includes a first linear vibration feeder, the drop end of the first linear vibration feeder is located directly above the moving path of the feeding tray, and a drop sensor is arranged at the drop end;
  • the detection mechanism includes two detectors symmetrically arranged on the upper and lower sides of the moving path of the feeding tray;
  • the discharging mechanism includes a receiving hopper arranged below the moving path of the feeding tray, and a blowing device that can blow materials from the feeding tray into the receiving hopper or a flipping mechanism that flips the feeding tray; and also includes a controller, the controller includes a position sensor for locating the position of the feeding tray.
  • the bottom of the feeding tray is a transparent plane, which is convenient for the detector below to detect soybeans through the feeding tray on the one hand, and on the other hand, it can avoid the accumulation of soybeans, but disperse them in the feeding tray.
  • the falling material sensor is used to roughly measure the number of soybeans dropped from the first linear vibration feeder into the feeding tray, so that the number of soybeans in the feeding tray is moderate.
  • the position sensor is used to determine the position of the feeding tray. Only when the position of the feeding tray relative to the feeding mechanism, the detection mechanism and the discharging mechanism is determined first can the corresponding action be performed.
  • the detector includes a camera or other scanning device that can confirm the composition, and the corresponding image processing system should have an image separation function to count soybeans.
  • the detection process of the present invention is: first, the position of the feeding tray is identified by the position sensor. When it is located directly below the first linear vibration feeder, the conveying mechanism stops moving, the feeding mechanism starts feeding, and the falling soybeans are counted by the falling material sensor. When the number of soybeans in the feeding tray reaches a certain amount, the feeding is stopped, and the conveying mechanism is started. When the feeding tray reaches the position of the detector, the conveying mechanism stops again.
  • the detector takes pictures or scans the upper and lower surfaces of the soybeans in the feeding tray simultaneously or alternately to obtain images or other component information, and sends them to the processing system for analysis. This process can realize the judgment of the quantity and whether they are damaged grains, or the determination of the components. Then the conveying mechanism is started again.
  • the soybeans are sent to the receiving hopper through the blowing device or the flipping mechanism, and the detection of a batch of soybeans is completed. According to the above process, by setting multiple feeding trays for cyclic operation, continuous detection of soybeans can be achieved.
  • the present invention provides a variety of solutions, which are as follows:
  • the conveying mechanism includes a transparent plate that can rotate on a horizontal plane, a limit plate is provided on the upper surface of the transparent plate, a plurality of through holes are evenly spaced around the limit plate, and the through holes and the transparent plate form a material receiving tray.
  • the rotatable transparent plate is used to receive the soybeans, which does not affect the detection and can achieve continuous cycle operation.
  • the limit plate with through holes mainly plays a limiting and shielding role, restricting the soybeans within the through hole area, preventing the soybeans from rolling out of the through hole due to inertia when falling from the first linear vibration feeder to the transparent plate, and at the same time facilitating the movement of the soybeans during the detection process.
  • the soybeans can only be blown out of the feeding tray by a blowing device. Therefore, in order to facilitate blowing out the soybeans, a circle of stepped surfaces is provided at the edge of the limiting plate, so that the side wall of the through hole near the edge of the limiting plate is shallower than other parts, which can facilitate the soybeans to flip out of the through hole, or an opening connected to the through hole is directly provided at the edge of the limiting plate near the through hole.
  • the feeding direction of the first linear vibration feeder can be directed toward the middle area of the transparent plate, so that during feeding, the soybeans will gather toward the inside of the through hole under the action of inertia, and will not jump out or roll out of the through hole from the edge of the limiting plate.
  • the second solution is: the conveying mechanism includes a turntable that can rotate on a horizontal plane, the material receiving tray includes multiple and evenly spaced ones on the circumference of the turntable, and the enclosure on the side of the material receiving tray away from the center of the turntable is an outwardly inclined slope.
  • the turntable of this solution does not need to be made of transparent material, and only needs the bottom of the material receiving tray to be transparent.
  • the enclosure on the side of the material receiving tray away from the center of the turntable is set as an outwardly inclined slope, mainly to facilitate blowing the soybeans out of the material receiving tray.
  • the present invention also provides the following multiple solutions:
  • Solution 1 The rotating disk is provided with mounting holes around it, and a flip frame is provided in the mounting holes.
  • the flip frame is hinged to the edge of the rotating disk.
  • the feeding tray is located in the flip frame, and its periphery is connected to the flip frame through springs.
  • a micro vibrator is provided on the side of the feeding tray.
  • a telescopic device that can lift the feeding tray upward is provided at the bottom of the rotating disk and the corresponding position of the receiving hopper.
  • the feeding tray is connected to the flip frame through a spring, mainly to facilitate the micro vibrator to vibrate the feeding tray.
  • the purpose of the vibration is to make the soybeans in the feeding tray more dispersed, so as to facilitate the identification of damaged grains and counting during subsequent image processing, and improve the accuracy of detection.
  • the feeding tray When discharging, there is no need for a blowing device. Instead, the feeding tray is lifted upward by the telescopic device when it is raised, so that it is flipped outward and the soybeans are poured out of the feeding tray. When the telescopic device is lowered, the feeding tray returns to a horizontal state under the action of gravity.
  • Solution 2 A mounting seat is provided at the bottom of the turntable, a support rod is provided on the side of the feeding tray, one end of the support rod away from the feeding tray is hinged to the mounting seat, and a limit portion is provided at the end of the end so that the support rod can rotate a certain angle in the vertical direction.
  • An electromagnet is provided around the turntable, and an iron sheet is provided on the support rod. When the electromagnet is energized, the iron sheet can be adsorbed to keep the support rod horizontal.
  • the electromagnet is energized, the support rod and the feeding tray are in a horizontal state, and loading and testing can be carried out.
  • the electromagnet When the feeding tray moves to the top of the receiving hopper, the electromagnet is de-energized, and the support rod rotates downward under the action of gravity until the limit portion contacts the turntable. At this time, the feeding tray tilts downward, and the soybeans can slide out of the feeding tray. When the feeding tray returns to the feeding position, the electromagnet is energized again, and this cycle repeats.
  • Solution three A mounting seat is provided at the bottom of the turntable, and a support rod is provided on the side of the material tray. The end of the support rod away from the material tray is hinged to the mounting seat so that the support rod can rotate in the vertical direction.
  • An elastic member is provided between the edge of the turntable and the support rod. The elastic member tightens the support rod so that it is close to the bottom of the turntable and keeps it horizontal.
  • An arc-shaped protrusion protruding downward is provided above the moving path of the material tray. When the material tray passes through the arc-shaped protrusion, the support rod contacts the arc-shaped protrusion and can rotate downward under the action of the arc surface.
  • This solution is similar to the above-mentioned solution two, except that an elastic member is used to keep the support rod in a horizontal state.
  • the support rod When discharging, the support rod is pressed down by the arc-shaped protrusion, so that the soybeans slide out of the material tray and then return to a horizontal state under the elastic force of the elastic member.
  • the conveying mechanism includes a chain or conveyor belt moving along a runway-shaped loop on a vertical plane
  • the material tray is connected to the chain or conveyor belt through a support rod, and it is ensured that the material tray faces upward in the upper straight section of the loop
  • the feeding mechanism and the detection mechanism are both located in the upper straight section of the loop
  • the receiving hopper is located below the turning point from the upper straight section to the lower straight section of the loop.
  • a broken grain screening mechanism is provided in front of the feeding mechanism, and the broken grain screening mechanism includes a receiving plate and a screening turntable located in the receiving plate, a second linear vibration feeder is provided above the screening turntable, and the feeding direction is toward the edge of the screening turntable, a hair dryer is provided in the middle of the screening turntable, and a receiving trough facing the hair dryer is provided outside the edge of the screening turntable; the discharge port of the receiving plate is connected to the feeding mechanism. Due to the characteristics of soybeans, it is easy to break into two pieces during the processing process. This damage is sometimes separately counted from the damage caused by the shriveling, insect infestation, etc. of the soybeans themselves.
  • the present invention adds a broken grain screening mechanism, and its screening principle is also to use the spherical or ellipsoidal shape of soybeans.
  • soybeans fall from the second linear vibration feeder to the screening turntable, under the action of inertia, the complete soybeans will roll from the edge of the screening turntable to the receiving plate, while the broken soybeans cannot roll and will stay on the screening turntable.
  • they rotate to a position relative to the air outlet of the hair dryer, they will be blown into the receiving trough for collection. Then, the soybeans in the receiving tray can be fed into the first linear vibrating feeder of the feeding device manually or by other feeding mechanisms for subsequent testing.
  • a bracket can be provided on the outside of the screening turntable, and a rotatable door-shaped guide groove is provided on the bracket.
  • the lower opening of the guide groove is adjacent to the upper surface of the screening turntable, and one end is aligned with the blanking end of the second linear vibration feeder, and the other end is toward the edge of the screening turntable.
  • the guide groove is used to limit the rolling direction of the soybeans. Since the soybeans are not completely spherical, the guide groove can prevent the soybeans from running off.
  • the movement path of the soybeans can be adjusted by changing the angle of the guide groove to ensure that the complete soybeans can roll off the edge of the screening turntable.
  • the beneficial effects of the present invention are as follows: by utilizing a cyclically movable flat-bottomed feeding tray as a feeding mechanism, the position of soybeans can be restricted, and by combining a drop sensor to control the feed quantity, the soybeans in the feeding tray can be evenly dispersed without accumulation. During subsequent inspections, two detectors perform double-sided inspections on stationary soybeans at the same location, which can achieve accurate detection and quantity statistics of damaged grains, thereby greatly improving the inspection efficiency and inspection quality of soybeans.
  • the present invention provides a variety of schemes, among which the feeding tray formed by the transparent plate and the through hole on the limit plate has a simple structure, and can be simply improved on the existing technology to realize soybean detection, and the transformation cost is low; the scheme of the feeding tray cooperating with the flip frame, the micro vibrator and the telescopic mechanism can improve the dispersion effect of soybeans, thereby ensuring the accuracy of image recognition and quantity statistics, and the discharging method of the flip feeding tray is not easy to cause soybean splashing; the scheme of the feeding tray cooperating with the support rod and the electromagnet, and the scheme of the feeding tray cooperating with the support rod, the elastic member and the arc-shaped protrusion can realize the stable feeding, fixed-point detection and smooth discharging of the feeding tray in a simple and easy-to-control way; the runway-shaped circulation loop scheme, the feeding tray located in the upper straight section of the loop can perform feeding and detection work, and when reaching the arc section, the feeding tray will flip itself to realize dis
  • Fig. 1 is a schematic diagram of the overall structure of the present invention
  • FIG2 is a schematic structural diagram of a first embodiment of a limit plate of the present invention.
  • FIG3 is a schematic diagram of the structure of a second limiting plate solution of the present invention.
  • FIG4 is a schematic structural diagram of a first embodiment of a material holding tray according to the present invention.
  • FIG5 is a top view of a second material receiving tray of the present invention.
  • FIG6 is a front view of the second solution of the material tray of the present invention when the support rod is horizontal;
  • FIG. 7 is a front view of the supporting rod of the second solution of the material tray of the present invention when it is tilted;
  • FIG8 is a front view of the material tray solution 3 of the present invention when the support rod is horizontal;
  • FIG. 9 is a front view of the supporting rod of the third solution of the material tray of the present invention when it is tilted;
  • FIG. 10 is a front view of the arc-shaped protrusion in the third solution of the material tray of the present invention.
  • FIG. 11 is a front view of the fourth embodiment of the material tray of the present invention.
  • FIG. 12 is a top view of a fourth embodiment of the material tray of the present invention.
  • FIG13 is a schematic structural diagram of a crushed particle screening mechanism of the present invention.
  • the soybean detector of the present invention comprises a feeding mechanism, a feeding mechanism, a detection mechanism and a discharging mechanism which are sequentially arranged along the detection path;
  • the feeding mechanism comprises a material receiving tray 200 and a conveying mechanism which can drive the material receiving tray 200 to move in a circular motion, the bottom of the material receiving tray 200 is a transparent plane, and a fence is arranged around it;
  • the feeding mechanism comprises a first linear vibration feeder 100, the blanking end of the first linear vibration feeder 100 is located directly above the moving path of the material receiving tray 200, and a blanking sensor 110 is arranged at the blanking end;
  • the detection mechanism comprises two detectors 300 symmetrically arranged on the upper and lower sides of the moving path of the material receiving tray 200;
  • the discharging mechanism comprises a receiving hopper 400 arranged below the moving path of the material receiving tray 200, and a blowing device 410 which can blow materials from the material receiving tray 200 into the receiving hopper 400 or a flipping mechanism which flips the material receiving tray 200; and also comprises
  • the feeding tray 200 mainly has three functions. First, the structure of the bottom plate plus the surrounding enclosure can limit the position of the soybeans. During the feeding process, the soybeans will not roll outside the feeding tray 200, thereby limiting them within the detection range of the detector 300. Second, under the action of the conveying mechanism, the feeding tray 200 can drive the soybeans to move, complete the subsequent detection and discharging process, and realize continuous operation. Third, the transparent plane is used as the bottom plate. On the one hand, it is convenient for the detector 300 below to detect the soybeans through the feeding tray 200, and on the other hand, the soybeans can be dispersed in the feeding tray 200 to improve the detection accuracy. The size of the feeding tray 200 is mainly selected according to the detection range of the detector 300.
  • the drop sensor 110 can be a photoelectric switch. When soybeans fall from the drop end of the linear vibration feeder 100, the light will be blocked. Each time the light is blocked, the light is counted, thereby recording the number of dropped soybeans. In order to avoid splashing of soybeans when they fall from the first linear vibration feeder 100 into the material tray 200, the first linear vibration feeder 100 needs to be located at a lower position. Therefore, the drop sensor 110 only needs to roughly measure the number of soybeans that fall from the first linear vibration feeder 100 into the material tray 200.
  • the purpose is to ensure that the soybeans in the material tray 200 are dispersed and not accumulated. For example, if the design capacity of the material tray 200 is 30, the drop sensor 110 can be set to stop feeding when the count reaches 15. At this time, the number of soybeans in the material tray 200 may be between 15 and 20, which meets the detection requirements. Accurate counting is achieved through subsequent image processing.
  • the feeding mechanism can be provided with other feeding hoppers or vibrating feeders in front of the first linear vibrating feeder 100 according to the amount of detection and the feeding speed requirements, so that the feeding speed of the first linear vibrating feeder 100 meets the requirements.
  • the position sensor 500 is used to determine the position of the material tray 200.
  • the position sensing can be realized by means of photoelectric switches, touch switches, encoders or numerically controlled motors.
  • a blocking block 510 can be set at the position corresponding to the material tray 200. When the blocking block 510 blocks the light of the photoelectric sensor, the material tray 200 stops moving.
  • the detector 300 includes a camera or other scanning device that can confirm the composition, and the corresponding image processing system should have an image separation function to count soybeans.
  • the two detectors 300 need to be symmetrically arranged together, because the soybeans may turn over when the material tray 200 moves. If the detection is staggered, it cannot be ensured that the same soybean will be detected on different sides twice.
  • the detection process of the present invention is: first, the position of the material tray 200 is identified by the position sensor 500. When it is located directly below the first linear vibration feeder 100, the conveying mechanism stops moving, the feeding mechanism starts feeding, and the falling soybeans are counted by the falling material sensor 110. When the soybeans in the material tray 200 reach a certain number, the feeding is stopped, and the conveying mechanism is started. When the material tray 200 reaches the position of the detector 300, the conveying mechanism stops again, and the detector 300 takes pictures or scans the upper and lower surfaces of the soybeans in the material tray 200 simultaneously or alternately to obtain images or other component information, and sends them to the processing system for analysis. This process can realize the judgment of the number and whether it is a damaged grain, as well as the determination of the composition.
  • the conveying mechanism is started again.
  • the soybeans are sent to the receiving hopper 400 through the blowing device 410 or the flipping mechanism, and the detection of a batch of soybeans is completed. According to the above process, by setting multiple material trays 200 for cyclic operation, continuous detection of soybeans can be achieved.
  • the present invention provides a variety of solutions, which are as follows:
  • the conveying mechanism includes a transparent plate 210 that can rotate on a horizontal plane, a limiting plate 211 is provided on the upper surface of the transparent plate 210, and a plurality of through holes 212 are evenly spaced around the limiting plate 211, and the through holes 212 and the transparent plate 210 form a material receiving tray 200.
  • the rotatable transparent plate 210 is used to receive the soybeans, which does not affect the detection and can realize continuous cycle operation.
  • the limiting plate 211 with the through holes 212 mainly plays the role of limiting and shielding, and limits the soybeans in the area of the through holes 212, which can prevent the soybeans from rolling out of the through holes 212 due to inertia when they fall from the first linear vibration feeder 100 to the transparent plate 210.
  • the thickness of the limiting plate 211 can be set to 3-5mm. After testing, under the premise of appropriate feeding speed and drop, the limiting plate 211 of 3-5mm can effectively prevent soybeans from popping out of the through hole 212.
  • the diameter of soybeans is generally 3-5mm. In the process of moving with the transparent plate 210, the soybeans will not flip out of the through hole 212.
  • a circle of stepped surfaces is provided at the edge of the limiting plate 211, so that the side wall of the through hole 212 near the edge of the limiting plate 211 is shallower than other parts, that is, the enclosure of the material tray 200 near the edge of the limiting plate 211 is thinner, such as 0.5-1mm, so that the soybeans can be smoothly flipped out of the through hole 212 under the action of blowing, or as shown in Figure 3, an opening 213 connected to the through hole 212 is directly provided at the edge of the limiting plate 211 near the through hole 212.
  • the size of the thinned portion of the limiting plate 211 or the opening 213 should not be too large, and it only needs to occupy about one-third of the arc length of the through hole 212. If it is too large, it may affect the limiting effect of the soybeans, and if it is too small, it will be inconvenient to discharge the soybeans.
  • the feeding direction of the first linear vibration feeder 100 can be directed toward the middle area of the transparent plate 210, so that during feeding, the soybeans will gather toward the inside of the through hole 212 under the action of inertia, and will not jump out of or roll out of the through hole 212 from the edge of the limiting plate 211.
  • the second solution is: as shown in Fig. 4 and Fig. 5, the conveying mechanism includes a turntable 220 that can rotate on a horizontal plane, the material tray 200 includes multiple and evenly spaced ones arranged on the circumference of the turntable 220, and the enclosure on the side of the material tray 200 away from the center of the turntable 220 is an outwardly inclined inclined surface. Since the turntable 220 of this solution does not receive materials, it does not need to be made of transparent material, and only needs the bottom of the material tray 200 to be transparent. The enclosure on the side of the material tray 200 away from the center of the turntable 220 is set as an outwardly inclined inclined surface, mainly to facilitate the discharge of materials from the material tray 200.
  • the present invention provides the following multiple solutions:
  • the rotating disk 220 is provided with a mounting hole 230 around it, and a turning frame 231 is provided in the mounting hole 230.
  • the turning frame 231 is hinged to the edge of the rotating disk 220.
  • the material tray 200 is located in the turning frame 231, and its periphery is connected to the turning frame 231 through a spring 232.
  • a micro vibrator 233 is provided on the side of the material tray 200.
  • a telescopic device 234 that can lift the material tray 200 upward is provided at the bottom of the rotating disk 220 corresponding to the receiving hopper 400.
  • the material tray 200 is connected to the turning frame 231 through a spring 232, mainly to facilitate the micro vibrator 233 to vibrate the material tray 200.
  • the purpose of the vibration is to make the soybeans in the material tray 200 more dispersed, so as to facilitate the identification of damaged grains and counting during subsequent image processing, and improve the accuracy of detection.
  • a positioning step needs to be provided between the turning frame 231 and the mounting hole 230 to ensure that the material tray 200 can be placed horizontally on the rotating disk 220.
  • no blowing device is needed.
  • the telescopic device 234 is raised, the material tray 200 is lifted upward to flip it outward, and the soybeans are poured out of the material tray 200.
  • the telescopic device 234 is lowered, the material tray 200 returns to a horizontal state under the action of gravity.
  • some limiting structures need to be set, such as a torsion spring at the hinge to ensure that the overturning frame 231 is reset.
  • a mounting seat 240 is provided at the bottom of the rotating disk 220, a support rod 241 is provided on the side of the material tray 200, and one end of the support rod 241 away from the material tray 200 is hinged to the mounting seat 240, and a limit portion 242 is provided at the end of the end, so that the support rod 241 can rotate a certain angle in the vertical direction, and an electromagnet 243 is provided around the rotating disk 220, and an iron sheet 244 is provided on the support rod 241, and the electromagnet 243 can absorb the iron sheet 244 when it is energized, so that the support rod 241 remains horizontal.
  • the electromagnet 243 is energized, and the iron sheet 244 is absorbed by the electromagnet 243, so that the support rod 241 and the material tray 200 are in a horizontal state, and loading and detection can be performed.
  • the electromagnet 243 is powered off, and the support rod 241 rotates downward under the action of gravity.
  • the limit portion 242 at the end of the support rod 241 will contact the turntable 200, causing the support rod 241 to stop rotating.
  • a spring or a rubber pad can be set on the limit portion 242.
  • the material tray 200 When the support rod 241 tilts, the material tray 200 also tilts downward, and the soybeans can slide out of the material tray 200.
  • the electromagnet 243 is powered on again, and the cycle repeats. In order to ensure that the electromagnet 243 can re-absorb the iron sheet 244, the tilt angle of the support rod 241 cannot be too large to ensure that the iron sheet 244 is within the adsorption range of the electromagnet 243.
  • a mounting seat 240 is provided at the bottom of the turntable 220, and a support rod 241 is provided on the side of the material receiving tray 200.
  • the end of the support rod 241 away from the material receiving tray 200 is hinged to the mounting seat 240, so that the support rod 241 can rotate in the vertical direction.
  • An elastic member 245 is provided between the edge of the turntable 220 and the support rod 241. The elastic member 245 tightens the support rod 241 to keep it close to the bottom of the turntable 220 and keep it horizontal.
  • a downwardly protruding arc-shaped protrusion 246 is provided above the moving path of the material receiving tray 200.
  • the third scheme of the feeding mechanism and the material tray 200 is: as shown in Figures 11 and 12, the conveying mechanism includes a chain or conveyor belt 250 moving along a runway-shaped loop on a vertical plane, the material tray 200 is connected to the chain or conveyor belt 250 through a support rod 241, and ensures that the material tray 200 faces upward in the upper straight section of the loop, the feeding mechanism and the detection mechanism are both located in the upper straight section of the loop, and the receiving hopper 400 is located below the turning point from the upper straight section of the loop to the lower straight section.
  • the use of a runway-shaped circulation loop can also realize the cyclic movement of the material tray 200, and the material tray 200 located in the upper straight section of the loop can perform feeding and detection work, and when it moves to the arc section turning downward, the material tray 200 will turn over by itself, thereby realizing discharging, which is convenient and quick.
  • This scheme can also directly use a transparent conveyor belt 250 as a bearing, and set a flexible enclosure on the transparent conveyor belt 250 to form the material tray 200.
  • the present invention is also provided with a crushed grain screening mechanism in front of the feeding mechanism, as shown in FIG13 , the crushed grain screening mechanism comprises a receiving tray 600 and a screening turntable 610 located in the receiving tray 600, a second linear vibration feeder 620 is provided above the screening turntable 610, and the feeding direction is toward the edge of the screening turntable 610, a blower 630 is provided in the middle of the screening turntable 610, and a receiving trough 640 facing the blower 630 is provided outside the edge of the screening turntable 610; the discharge port of the receiving tray 600 is connected to the feeding mechanism.
  • the crushed grain screening mechanism comprises a receiving tray 600 and a screening turntable 610 located in the receiving tray 600, a second linear vibration feeder 620 is provided above the screening turntable 610, and the feeding direction is toward the edge of the screening turntable 610, a blower 630 is provided in the middle of the screening turntable 610, and a receiving trough 640 facing the blower 630 is provided outside the edge of the screening turn
  • the present invention adds a broken grain screening mechanism, and its screening principle also uses the spherical or ellipsoidal shape of soybeans.
  • the complete soybeans will roll from the edge of the screening turntable 610 to the receiving tray 600, while the broken soybeans cannot roll and will stay on the screening turntable 610.
  • they When they rotate to a position relative to the air outlet of the blower 630, they will be blown into the receiving trough 640 for collection.
  • the soybeans in the receiving tray 600 can be fed into the first linear vibration feeder 100 of the feeding device by manual or other feeding mechanisms for subsequent detection.
  • a bracket 650 can be set on the outside of the screening turntable 610, and a rotatable door-shaped guide groove 660 is set on the bracket 650.
  • the lower opening of the guide groove 660 is adjacent to the upper surface of the screening turntable 610, and one end is aligned with the blanking end of the second linear vibration feeder 620, and the other end is toward the edge of the screening turntable 610.
  • the guide groove 660 is used to limit the rolling direction of the soybeans.
  • the guide groove 660 can prevent the soybeans from deviating.
  • the movement path of the soybeans can be adjusted by changing the angle of the guide groove 660. Since the second linear vibration feeder 620 is generally fixed, the guide groove 660 can be used to control the rolling distance of the soybeans to the edge of the screening turntable 610, thereby ensuring that the complete soybeans can roll off the edge of the screening turntable 610.

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  • Life Sciences & Earth Sciences (AREA)
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  • Analytical Chemistry (AREA)
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  • Textile Engineering (AREA)
  • Theoretical Computer Science (AREA)
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Abstract

Inspecteur de graines de soja comprenant un mécanisme d'alimentation, un mécanisme de transport, un mécanisme d'inspection et un mécanisme de déversement. Le mécanisme de transport comprend un plateau de réception (200) capable de se déplacer d'une manière circulaire, et le fond du plateau de réception (200) a une face plate transparente ; le mécanisme d'alimentation comprend un premier dispositif d'alimentation à vibration linéaire (100), et un capteur de chute (110) est disposé au niveau d'une extrémité de chute du premier dispositif d'alimentation à vibration linéaire (100) ; le mécanisme d'inspection comprend deux inspecteurs (300) disposés sur un côté supérieur et un côté inférieur d'un trajet de déplacement du plateau de réception (200) ; et le mécanisme de déversement comprend une trémie de réception (400), et un dispositif de soufflage (410) capable de souffler des matériels à partir du plateau de réception (200) dans la trémie de réception (400), ou un mécanisme de retournement capable de retourner le plateau de réception (200). L'inspecteur de graines de soja comprend en outre un dispositif de commande, qui comprend un capteur de position (500) pour déterminer la position du plateau de réception (200). Le plateau de réception (200) peut limiter les positions de graines de soja et disperser uniformément les graines de soja, et les deux inspecteurs (300) effectuent une inspection double face sur les graines de soja statiques au même endroit, de telle sorte qu'une inspection précise et des statistiques de quantité de graines de soja endommagées peuvent être réalisées, ce qui permet d'améliorer considérablement l'efficacité et la qualité de l'inspection de graines de soja.
PCT/CN2022/141083 2022-12-22 2022-12-22 Inspecteur de graines de soja WO2024082432A1 (fr)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040184649A1 (en) * 2002-12-20 2004-09-23 J.M. Canty Inc. Granular product inspection device
CN207188252U (zh) * 2017-04-27 2018-04-06 深圳市维创云智能技术有限公司 粮食不完善粒的智能检测***
CN109047038A (zh) * 2018-09-07 2018-12-21 中储粮成都储藏研究院有限公司 一种粮食籽粒检测仪
CN112246688A (zh) * 2020-10-28 2021-01-22 迩言(上海)科技有限公司 一种粮食不完善粒的检测分拣设备
CN112697653A (zh) * 2020-12-10 2021-04-23 安徽省益丰生态农业科技有限公司 一种谷粒图像双面连续循环采集装置
CN215235945U (zh) * 2021-05-07 2021-12-21 山东泓盛智能科技有限公司 粮食颗粒外观检测分选装置
CN217779810U (zh) * 2022-07-05 2022-11-11 上海大和衡器有限公司 一种照相数粒机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040184649A1 (en) * 2002-12-20 2004-09-23 J.M. Canty Inc. Granular product inspection device
CN207188252U (zh) * 2017-04-27 2018-04-06 深圳市维创云智能技术有限公司 粮食不完善粒的智能检测***
CN109047038A (zh) * 2018-09-07 2018-12-21 中储粮成都储藏研究院有限公司 一种粮食籽粒检测仪
CN112246688A (zh) * 2020-10-28 2021-01-22 迩言(上海)科技有限公司 一种粮食不完善粒的检测分拣设备
CN112697653A (zh) * 2020-12-10 2021-04-23 安徽省益丰生态农业科技有限公司 一种谷粒图像双面连续循环采集装置
CN215235945U (zh) * 2021-05-07 2021-12-21 山东泓盛智能科技有限公司 粮食颗粒外观检测分选装置
CN217779810U (zh) * 2022-07-05 2022-11-11 上海大和衡器有限公司 一种照相数粒机

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