WO2021020219A1 - 籾判別機 - Google Patents
籾判別機 Download PDFInfo
- Publication number
- WO2021020219A1 WO2021020219A1 PCT/JP2020/028162 JP2020028162W WO2021020219A1 WO 2021020219 A1 WO2021020219 A1 WO 2021020219A1 JP 2020028162 W JP2020028162 W JP 2020028162W WO 2021020219 A1 WO2021020219 A1 WO 2021020219A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- paddy
- mixed
- receiving means
- light receiving
- Prior art date
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- 235000007164 Oryza sativa Nutrition 0.000 title abstract description 16
- 235000009566 rice Nutrition 0.000 title abstract description 16
- 240000007594 Oryza sativa Species 0.000 title 1
- 235000013339 cereals Nutrition 0.000 claims abstract description 55
- 235000021329 brown rice Nutrition 0.000 claims abstract description 51
- 239000002245 particle Substances 0.000 claims description 22
- 230000001678 irradiating effect Effects 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 4
- 241000209094 Oryza Species 0.000 abstract description 15
- 238000005286 illumination Methods 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 description 13
- 239000010903 husk Substances 0.000 description 10
- 238000007689 inspection Methods 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012850 discrimination method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 230000007723 transport mechanism Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000004397 blinking Effects 0.000 description 1
- 230000000779 depleting effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B5/00—Grain treatment not otherwise provided for
- B02B5/02—Combined processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
- B02B3/04—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers
- B02B3/045—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers cooperating rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B7/00—Auxiliary devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/3416—Sorting according to other particular properties according to radiation transmissivity, e.g. for light, x-rays, particle radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
- B07C2501/0018—Sorting the articles during free fall
-
- 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
- G01N2021/8592—Grain or other flowing solid samples
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
Definitions
- the present invention relates to a paddy discriminator capable of discriminating paddy or brown rice from a mixed grain composed of paddy and brown rice.
- a roll-type paddy shaving machine should be 100% stripped by passing the paddy between a pair of stripping rolls once.
- roll speed per minute, peripheral speed, peripheral speed difference rate, peripheral speed difference length, pressure between rubber rolls, etc., 85 to The removal rate may be about 95%.
- various types of sorting parts are attached to the roll-type paddy sliding part, and devised so that 100% depleted brown rice is discharged outside the machine (that is, the paddy is not discharged outside the machine).
- a swing sorting section for sorting brown rice, paddy, and mixed grains of rice that has passed through the paddy section is attached to the paddy section composed of a pair of de-rolls, and the rice is extracted by the swing sorting section.
- a paddy sorter see, for example, Patent Document 1 that can re-pull off paddy and discharge only high-quality brown rice from the machine.
- a paddy sorting section by color sorting is attached to the paddy sliding section composed of a pair of de-rolling rolls, and the paddy extracted by the paddy sorting section can be re-pulled and only high-quality brown rice can be discharged from the machine.
- a sliding sorter see, for example, Patent Document 2 is known.
- Patent Document 1 describes the action / effect that by installing the suspension tank at a low position of the machine body, the overall height of the machine can be lowered and stable and reliable paddying work can be performed. Further, in Patent Document 2, instead of the swing sorting section as in Patent Document 1, a paddy sorting section by color sorting is provided, so that complicated assembly and angle adjustment work as in the swing sorting section is unnecessary. It is stated that the problem of vibration and noise can be eliminated. Furthermore, there is a description of actions and effects such as making the entire device as small as possible and automating it.
- the mechanism of the color sorting unit is a light source, a light receiving element, an injection nozzle, and a change signal of the amount of light detected by the light receiving element. It is provided with a control circuit for operating the injection nozzle based on the above. Then, since the brown rice and the paddy are discriminated by the signal by the monochrome sensor (the difference in the shade of a single color such as white and black) such as the change in the amount of light, the brown rice and the paddy may be confused.
- a strobe light emitter and a color imaging means are arranged on a chute through which mixed particles flow, and the removal is performed in synchronization with the intermittent light emission of the strobe light emitter. It is a rate sensor.
- the image information captured by the color imaging means is separated into three color signals, a red signal (R), a green signal (G), and a blue signal (B), and the ratio of these color components is calculated. Further, the removal rate is calculated by a predetermined calculation from the calculated ratio of the color components. As a result, the amount of information can be increased, and accurate discrimination can be performed by using the discrimination of the ratio of the three color components.
- the removal rate sensor described in Patent Document 3 is blinked by a strobe light source as a light source, only the amount of information at the time of blinking can be acquired, and the amount of information is small. .. Therefore, the discrimination and sorting accuracy may be inferior. Further, since the reflected light when the mixed particles are irradiated with the light from the strobe light emitter is acquired by the color imaging means, only the reflected component of the light can be acquired, and depending on the flow state of the raw material, the paddy Or it was sometimes difficult to distinguish brown rice.
- the present invention technically provides a paddy discriminator capable of accurately discriminating between paddy and brown rice by acquiring the reflection component and the transmission component of the light received by the light receiving means. Make it an issue.
- the invention according to claim 1 of the present application is from a flow-down trough in which mixed grains composed of paddy and brown rice are aligned and flow down, a light-emitting source that irradiates the mixed grains discharged from the flow-down trough with light, and a light-emitting source. It has a light receiving means capable of receiving reflected light and transmitted light from the mixed grain irradiated with light, and the light emitting source is provided on the light receiving means side of the mixed grain and the mixed grain.
- the mixed grains to be discharged are brown rice.
- the mixed particles to be discharged are paddy.
- the light emitting source is further provided at a position on an extension line connecting the light receiving means and the mixed grain, and the background of the mixed grain can be irradiated with light of a blue component.
- the blue component When the amount of light received by the blue component is out of a predetermined range as a result of the light received by the light receiving means, the one discharged from the downspout is a foreign substance that is not the mixed particles.
- the paddy discriminator according to claim 1 or 2.
- the flow gutter extends at least to the observation region of the light receiving means for irradiating the mixed particles with light, and can transmit light from the light emitting source.
- the paddy discriminator according to any one of 3.
- the invention according to claim 5 of the present application is mounted on a paddy sorting machine and gives a notification prompting adjustment of the removal machine according to a removal rate calculated based on the light reception result of the light receiving means.
- the paddy discriminator according to any one of 4 to 4.
- a first lighting means capable of irradiating a mixed grain of paddy and brown rice with light of a red component and a second lighting means capable of irradiating light of a green component are installed to receive the reflected light and transmitted light, respectively.
- the mixed particles to be discharged are brown rice, and the light received by the green component is received.
- the amount is lower than the above-mentioned predetermined green component threshold value and the amount of light received by the red component is higher than the predetermined red component threshold value, it is determined that the mixed particles discharged from the downflow trough are paddy. It is possible to quickly determine the type of mixed grains without performing a complicated discrimination process.
- the blue component is provided by providing a third lighting means capable of irradiating the background with the light of the blue component at a position on the extension line connecting the light receiving means and the mixed particles.
- the downspout gutter when the downspout gutter is extended to the observation area of the light receiving means and formed of a transparent material such as glass, the mixed particles are discharged from the lower end of the downspout gutter as in the conventional case.
- air resistance is less likely to occur in the grains of the mixed grains, and the posture of the grains is stable, so that it is possible to improve the discrimination accuracy of the mixed grains.
- the deprivation machine is adjusted according to the depletion rate based on the discriminating result of the mixed particles by the light receiving means. It is possible to appropriately give a notification to the administrator or the operator of the device.
- FIG. 1 is a schematic cross-sectional view of a paddy sorting machine to which the paddy sorting machine of the present invention is applied.
- the rice husk sorter 1 is a mixture of rice husks 2 that separate rice husks (rice husks) from rice husks to make brown rice, and paddy and brown rice that are attached to the rice husks 2 and are generated in the rice husks 2.
- the main part is composed of a rice husk sorting unit 3 (rice arranging machine 3) capable of sorting and removing only rice husks from grains.
- the paddy section 2 is a selection of a supply section 5 composed of a raw material hopper 4, a roll section 8 composed of a pair of depleting rolls 6 and a roll gap device 7 arranged below the supply section 5, and a lower portion of the roll section 8.
- the paddy sorting unit 3 includes a vibration supply mechanism including a mixed grain hopper 12, a vibration device 13, and a vibration trough 14 on the upper part of the machine body, and a flow supply mechanism composed of a slanted flow down gutter 15. Further, the paddy sorting unit 3 is an optical inspection unit 16 (“paddy” of the present invention, which is arranged in the lower part of the machine body so as to face the falling locus of the mixed particles (broken line r in FIG. 1) at the lower end of the downspout. It corresponds to the "discriminator”) and includes an ejector unit 17 that discriminates between brown rice and paddy from the mixed grains based on the inspection result of the optical inspection unit 16 and excludes only the paddy from the mixed grains.
- an optical inspection unit 16 (“paddy” of the present invention, which is arranged in the lower part of the machine body so as to face the falling locus of the mixed particles (broken line r in FIG. 1) at the lower end of the downspout. It corresponds to
- a brown rice collecting hopper 18 that collects brown rice below the falling locus of the mixed grains and a paddy collecting hopper 19 that collects the paddy excluded from the falling locus of the mixed grains are formed. It is provided. Further, the brown rice collecting hopper 18 is provided with a brown rice discharging unit 20 having a transport mechanism for discharging brown rice in addition to the paddy sorting machine 1, and the paddy collecting hopper 19 is for re-pulling the paddy.
- a paddy discharge unit 21 provided with a transport mechanism for transporting paddy is provided on the rice. The paddy discharge section 21 may be provided with a grain raising machine 22 capable of returning the paddy to the de-roll type paddy slide section 2.
- FIG. 2 is an enlarged schematic view of the internal structure of the paddy sorting unit 3, particularly the optical inspection unit 16 and the ejector unit 17.
- the structure of the paddy sorting unit 3 which is the main part of the present invention will be described with reference to FIG.
- the paddy sorting unit 3 is mainly composed of an optical inspection unit 16 arranged below the downspout gutter 15 and an ejector unit 17 below the optical inspection unit 16 as described above.
- the optical inspection unit 16 is provided with a full-color camera 30 (light receiving means) on one side (front side) facing the flow locus r of the mixed grains composed of paddy and brown rice on the downstream side of the flow gutter 15. There is. Further, a background 31 is provided at a position sandwiching the flow locus r of the optical axis k of the full-color camera 30.
- the first lighting means 32a and 32b for irradiating the mixed grain with light On the full-color camera 30 side of the flow locus r of the mixed grain, the first lighting means 32a and 32b for irradiating the mixed grain with light, and on the side away from the full-color camera 30 of the flow locus r of the mixed grain, the mixed grain is formed.
- the optical inspection unit 16 is provided with second lighting means 33a and 33b for irradiating light and a third lighting means 34 for irradiating the back surface of the background 31 with light.
- the intersection of the flow locus r and the optical axis k is the observation area o of the full-color camera 30.
- the first illuminating means 32a, 32b, the second illuminating means 33a, 33b, and the third illuminating means 34, respectively, have a monochromatic light source, and as the most preferable example in the present embodiment,
- the first lighting means 32a and 32b employ a light source composed of a red LED element
- the second lighting means 33a and 33b employ a light source composed of a green LED element
- the third lighting means 34 comprises a blue LED element.
- the LED element used it is possible to use an RGB LED element as well as a monochromatic LED element.
- the mixed grains which are the objects to be sorted are irradiated with the light of the red component from the first lighting means 32a and 32b
- the reflected light is received by the light receiving element of the red component of the full-color camera 30.
- the transmitted light is received by the light receiving element of the green component of the full-color camera 30. ..
- the background 31 is irradiated with light of a blue component from the third lighting means 34, whether or not the object to be sorted has passed through the observation area o, and foreign substances other than the mixed grains which are the objects to be sorted have passed. It is configured so that whether or not it is checked is determined by the amount of light received by the blue component of the full-color camera 30.
- FIG. 3A shows a graph showing the relationship between the wavelength and reflectance of light in brown rice and paddy
- FIG. 3B shows the relationship between the wavelength of light and the transmittance in a graph. As shown, there is no big difference in the light transmittance between brown rice and paddy, which are the objects to be sorted, between green and red.
- a light source composed of a red LED element is adopted for the first lighting means 32a and 32b for the purpose of receiving the reflected light by the full-color camera 30. Is preferable, and it becomes possible to more accurately determine the type of mixed grains that are the objects to be sorted.
- a white light source such as a fluorescent lamp is used for each of the first lighting means 32a and 32b, the second lighting means 33a and 33b and the third lighting means 34, reflected light and transmitted light will be generated. Since the information obtained by combining both components is taken into the full-color camera 30, it may be difficult to detect the characteristic light receiving amount and the discrimination accuracy may be lowered.
- the first lighting means 32a and 32b are set to be red
- the second lighting means 33a and 33b are set to be green
- the third lighting means 34 is set to be blue. It is also possible to use the combinations shown in Table 1 below.
- brown rice when brown rice passes through the observation region o, as shown in FIGS. 3A and 3B, brown rice has better optical transparency and lower reflectivity than paddy, so that the red component of the full-color camera 30 ( The light receiving amount of the light receiving element of the reflection component) is low, and the light receiving amount of the green component (transmissive component) of the full-color camera 30 is high.
- the paddy passes through the observation area o, the paddy has poorer optical transparency and higher reflectivity than brown rice, so that the amount of light received by the light receiving element of the red component (reflection component) of the full-color camera 30 is increased.
- the amount of light received by the light receiving element of the green component (transmissive component) of the full-color camera 30 is low.
- the amount of light received by the blue component of the full-color camera 30 is a substantially constant value because there is no large difference in size between brown rice and paddy. This is shown in Table 2.
- FIG. 4 is a flow for executing the above-mentioned discrimination method.
- step 1 it is determined whether or not the mixed particles have passed through the observation region o based on the amount of light received by the blue component in the full-color camera 30.
- step 2 it is confirmed whether the amount of light received by the green component in the full-color camera 30 is higher or lower than the predetermined green component threshold value, and whether this allows highly transparent brown rice to pass through, or whether other paddy or foreign matter has passed through. Is determined.
- step 3 it is confirmed whether the amount of light received by the red component in the full-color camera 30 is higher or lower than the predetermined red component threshold value, and thereby it is determined whether the paddy has passed or other foreign matter has passed. Will be done.
- the ratio of the received amount of the red component, which is the reflective component, to the received amount of the green component, which is the transmitted component (for example, the value of the “reflected component / transmitted component”) is calculated. If this value is larger than a predetermined threshold value, it may be determined as paddy, and if it is smaller than the predetermined threshold value, it may be determined as brown rice.
- the full-color camera 30 provided with light-receiving elements of each color is used as the light-receiving means, but the present invention is not necessarily limited to such a device, and single-color light receiving corresponding to each of red, green, and blue is used. It is possible to use a sensor. It is also possible to use a photographing camera as a light receiving means. In that case, the photographed image may be analyzed to extract the color components of each of the red component, the green component, and the blue component.
- the mode in which the paddy discriminator of the present invention is applied to the paddy sorter 3 and further to the paddy sorter 1 has been described, but it can also be applied to a mixed grain inspection device.
- FIG. 5 is a schematic view showing another embodiment of the paddy sorter of the present invention, in which the downspout gutter 15 is formed in a long shape, and a transparent material 40 such as glass is formed on a part of the bottom surface near the observation area o. It is provided.
- a transparent material 40 such as glass is formed on a part of the bottom surface near the observation area o. It is provided.
- air resistance is less likely to occur in the particles of the mixed particles and the posture of the particles is stabilized, as compared with the conventional one in which the mixed particles are discharged from the lower end of the flow-down gutter 15 and flowed down in the free fall state.
- a slit-shaped space may be provided, and further, the downspout gutter 15 may be configured by a belt conveyor.
- FIG. 6 is a schematic view showing another embodiment of the paddy sorting machine 1 to which the paddy sorting machine 3 of the present invention is applied.
- a centrifugal (impeller type) stripping machine can be adopted as the paddy section 2 instead of the roll type stripping machine.
- the paddy sorter 3 can adopt a belt type instead of the chute type (a type using the downspout gutter 15 of the present embodiment).
- the roll-type remover When the roll-type remover is adopted, if the removal rate obtained from the discrimination result of the full-color camera 30 of the paddy sorter 3 is 85% or less, (1) the roll gap of the roll-type remover. The adjusting device is controlled so as to approach the reference removal rate of 85 to 95%. If the roll gap control is performed and the removal rate, which is the standard, is not reached even after a certain period of time has passed, then (2) the flow rate of the paddy sorter 3 may be excessive, so control to reduce the flow rate is performed. Do. If the removal rate, which is the standard, is not met even after passing through (1) and (2), it is advisable to determine an abnormality and notify the administrator or operator of the device of a warning.
- the removal rate obtained from the discrimination result of the full-color camera 30 of the paddy sorter 3 is 90% or less when the centrifugal (impeller type) removal machine is adopted, (1) Centrifugal removal The rotation speed of the machine is controlled so as to approach the standard removal rate of 90 to 95%. If the above-mentioned removal rate, which is the standard, is not met even after a certain period of time has passed after the rotation speed control is performed, (2) the flow rate of the paddy sorter 3 may be excessive, so control to reduce the flow rate is performed. Do. If the removal rate, which is the standard, is not met even after passing through (1) and (2), it is advisable to determine an abnormality and notify the administrator or operator of the device of a warning.
- Paddy sorter 3 Paddy sorter (paddy sorter) 15 Flowing gutter 16 Optical inspection section (paddy discriminator) 17 Ejector section 30 Full-color camera (light receiving means) 31 Background 32a, 32b First lighting means 33a, 33b Second lighting means 34 Third lighting means
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Toxicology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Sorting Of Articles (AREA)
- Adjustment And Processing Of Grains (AREA)
Abstract
Description
以上、本発明の籾判別機の一実施形態について説明したが、種々の変形が可能である。
例えば、前述の実施形態では、受光手段として各色の受光素子を備えたフルカラーカメラ30を使用したが、必ずしもこのような装置に限られるものではなく、赤、緑、青それぞれに対応した単色の受光センサを使用しることが可能である。また、受光手段として撮影カメラを使用することも可能であり、その場合は撮影した画像の解析処理を行って、赤色成分、緑色成分、青色成分それぞれの色成分を抽出すればよい。
3 籾選別部(籾選別機)
15 流下樋
16 光学検査部(籾判別機)
17 エジェクタ部
30 フルカラーカメラ(受光手段)
31 バックグラウンド
32a、32b 第1の照明手段
33a、33b 第2の照明手段
34 第3の照明手段
Claims (5)
- 籾と玄米とからなる混合粒を整列させて流下させる流下樋と、
前記流下樋から吐出される前記混合粒に光を照射する発光源と、
前記発光源から光を照射された前記混合粒から、反射光及び透過光を受光することが可能な受光手段と、を有し、
前記発光源は、
前記混合粒の前記受光手段側に設けられて該混合粒に赤色成分の光を照射可能な第1の照明手段と、
前記混合粒の前記受光手段から離れる側に設けられて該混合粒に緑色成分の光を照射可能な第2の照明手段と、を備えた
ことを特徴とする籾判別機。 - 前記受光手段の受光結果として、
前記緑色成分の光の受光量が所定の緑色成分閾値よりも高い場合は吐出される前記混合粒が玄米であると判別され、
前記緑色成分の光の受光量が前記所定の緑色成分閾値よりも低く、且つ、赤色成分の光の受光量が所定の赤色成分閾値よりも高い場合は吐出される前記混合粒が籾であると判別される
請求項1に記載の籾判別機。 - 前記発光源は、さらに、前記受光手段と前記混合粒とを結ぶ延長線上の位置に設けられて該混合粒のバックグラウンドに青色成分の光を照射可能な第3の照明手段を備え、
前記受光手段の前記受光結果として、前記青色成分の光の受光量が所定の範囲を外れた場合は前記流下樋から吐出されたものが前記混合粒ではない異物であると判別される
請求項1又は2に記載の籾判別機。 - 前記流下樋は、少なくとも前記混合粒に光を照射される前記受光手段の観察領域まで延設され、前記発光源からの光を透過可能である
請求項1~3のいずれかに記載の籾判別機。 - 籾摺選別機に搭載され、
前記受光手段の前記受光結果に基づいて算出される脱ぷ率に応じて、脱ぷ機の調整を促す報知を行う
請求項1~4のいずれかに記載の籾判別機。
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CN202080055697.6A CN114245759B (zh) | 2019-07-30 | 2020-07-20 | 稻谷判别机 |
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EP4005676A4 (en) | 2023-11-22 |
BR112022001530A2 (pt) | 2022-03-22 |
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TW202103809A (zh) | 2021-02-01 |
JP7318397B2 (ja) | 2023-08-01 |
CN114245759A (zh) | 2022-03-25 |
CN114245759B (zh) | 2023-10-31 |
US12090486B2 (en) | 2024-09-17 |
US20220212197A1 (en) | 2022-07-07 |
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JP2021020194A (ja) | 2021-02-18 |
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