JPH11621A - Method for selecting/sorting grain by color and selecting/ sorting device - Google Patents
Method for selecting/sorting grain by color and selecting/ sorting deviceInfo
- Publication number
- JPH11621A JPH11621A JP17297897A JP17297897A JPH11621A JP H11621 A JPH11621 A JP H11621A JP 17297897 A JP17297897 A JP 17297897A JP 17297897 A JP17297897 A JP 17297897A JP H11621 A JPH11621 A JP H11621A
- Authority
- JP
- Japan
- Prior art keywords
- light
- grains
- grain
- wavelength
- wavelength ranges
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、穀粒、特に米粒中
に混入する異物叉は不良品を光学的手段を用いて選別除
去する穀粒色彩選別方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for grain color sorting for removing foreign matter or defective products mixed in grain, particularly rice grain, by optical means.
【０００２】[0002]
【従来の技術】従来、異なる２波長域の光を用いて、良
品と色の異なる着色粒と、良品と同色もしくは透明の異
物（ガラス片、プラスチック片、金属片、陶器片、磁器
片など）とを良品から選別除去する色彩選別装置として
は、本出願人が提案した例えば特開平８−２２９５１７
号公報に開示された穀粒色彩選別装置があり、以下図５
を参照しながら説明する。2. Description of the Related Art Conventionally, colored particles different in color from non-defective products and foreign matters of the same color or transparent as non-defective products (glass pieces, plastic pieces, metal pieces, pottery pieces, porcelain pieces, etc.) using two different wavelengths of light. As a color sorting apparatus for sorting and removing from non-defective products, for example, Japanese Patent Application Laid-Open No. Hei 8-229517 proposed by the present applicant has been proposed.
There is a grain color sorter disclosed in Japanese Patent Publication No.
This will be described with reference to FIG.
【０００３】穀粒流路５０の両側方には、所定の検出範
囲を通過する穀粒に光を照射する照明手段５１と、穀粒
からの反射光を受光する光学検出手段５２と、バックグ
ラウンド５３とからなる光学検出部５４Ａ，５４Ｂが対
設されており、照明手段５１は、可視光域を有する蛍光
管５５と近赤外光域を有するハロゲンランプ５６とから
構成され、光学検出手段５２は、レンズ５７、ダイクロ
イックミラー５８、光学フィルタ５９，６０及び受光セ
ンサ６１，６２から構成されている。また、光学フィル
タ５９及び受光センサ６１は可視光域に適したものであ
り、光学フィルタ６０及び受光センサ６２は近赤外光域
に適したものである。[0003] On both sides of the grain flow path 50, an illuminating means 51 for irradiating light to grains passing through a predetermined detection range, an optical detecting means 52 for receiving light reflected from the grains, and a background. The illumination means 51 comprises a fluorescent tube 55 having a visible light region and a halogen lamp 56 having a near-infrared light region. Is composed of a lens 57, a dichroic mirror 58, optical filters 59 and 60, and light receiving sensors 61 and 62. The optical filter 59 and the light receiving sensor 61 are suitable for the visible light range, and the optical filter 60 and the light receiving sensor 62 are suitable for the near infrared light range.
【０００４】そして、供給シュート６３からの穀粒に照
明手段５１から光を照射し、受光センサ６１の受光信号
により着色粒を識別し、ノズル６４からの空気流により
着色粒は除去されるとともに、受光センサ６２の受光信
号により異物を識別し、ノズル６４からの空気流により
異物は除去される。Then, light is emitted from the illumination means 51 to the grain from the supply chute 63, the colored grain is identified by the light receiving signal of the light receiving sensor 61, and the colored grain is removed by the air flow from the nozzle 64, The foreign matter is identified by the light receiving signal of the light receiving sensor 62, and the foreign matter is removed by the air flow from the nozzle 64.
【０００５】米粒にはその内部が粉状質である粉状粒
（米粒が玄米である場合には未熟粒の１つであり、白米
である場合には一般に「しらた」と呼ばれる）がある。
粉状粒はその外観が良品と同等の色を有しているととも
に、表層部が良品と同等の成分を有しているものの、内
部が粉状質であって白色不透明部を有しているため見た
目が悪く、しかも炊飯した場合には食味も劣るため、通
常、着色粒や前記異物とともに不良品として米粒中から
選別除去されている。[0005] Rice grains include powdery grains (in the case of brown rice, one of the immature grains, and in the case of white rice, generally called "Shirata"), the inside of which is powdery. .
The powdery particles have the same color as the non-defective product in appearance, and the surface layer has the same components as the non-defective product, but the inside is powdery and has a white opaque portion. For this reason, the appearance is poor, and when cooked, the taste is inferior. Therefore, the rice is usually selectively removed from the rice grains as defective together with the colored grains and the foreign substances.
【０００６】そして、上記装置を用いて粉状粒を選別除
去する場合には、前述したように粉状粒はその外観及び
表層部が良品と同じであり反射光量に良品との差はな
く、着色粒や異物として選別除去することができないた
め、あらかじめ米粒中から着色粒と異物を除去した後、
例えば光学検出部５４Ｂの可視光域を有する蛍光管５５
を消して、着色粒と異物とを除去した後の米粒を選別装
置に再度供給し、光学検出部５４Ｂの受光センサ６１で
米粒からの透過光のみを受光し、その受光量により良品
と粉状粒とを識別して良品から粉状粒を選別除去してい
る。When the powdery particles are selectively removed using the above-described apparatus, the appearance and surface layer of the powdery particles are the same as those of non-defective products as described above. Colored particles and foreign matter cannot be sorted out and removed, so after removing colored particles and foreign matter from rice grains in advance,
For example, a fluorescent tube 55 having a visible light range of the optical detection unit 54B
Is removed, and the rice grains after removing the colored grains and foreign matter are supplied again to the sorting device, and only the transmitted light from the rice grains is received by the light receiving sensor 61 of the optical detection unit 54B. Granules are discriminated from non-defective items to separate and remove powdery granules.
【０００７】ところで、上記装置を用いて一度に全ての
不良品を選別除去する方法として、光学検出部５４Ｂの
ハロゲンランプ５６，５６を消し、光学検出部５４Ａに
おいて可視光の反射光量と近赤外光の反射光量とを検出
するとともに、光学検出部５４Ｂにおいて可視光の反射
光量と近赤外光の透過光量とを検出することが考えられ
るが、この場合、光学検出部５４Ｂのバックグラウンド
５３への近赤外光の照射が不十分となり、良品と同色叉
は透明な異物の選別に不具合が生じるという問題点があ
った。As a method for selecting and removing all defective products at once using the above-described apparatus, the halogen lamps 56, 56 of the optical detection unit 54B are turned off, and the amount of reflected visible light and near-infrared light at the optical detection unit 54A are reduced. In addition to detecting the amount of reflected light, the optical detector 54B may detect the amount of reflected visible light and the amount of transmitted near-infrared light. However, there is a problem that the irradiation of near-infrared light becomes insufficient, and a defect occurs in selecting a foreign substance of the same color or transparent as a good product.
【０００８】このように、上記装置においてはあらかじ
め着色粒と異物とを除去した後、再度米粒を供給して粉
状粒を選別除去しなければ確実に良品と不良品とを選別
することはできない。[0008] As described above, in the above-described apparatus, it is impossible to reliably sort non-defective products and defective products unless the colored particles and foreign substances are removed in advance and then the rice particles are supplied again to separate and remove the powdery particles. .
【０００９】[0009]
【発明が解決しようとする課題】本発明は以上のような
問題点にかんがみ、良品と色彩が異なる着色粒、良品と
同色もしくは透明の異物及び粉状粒を１回の処理で良品
と識別し、しかも確実に良品から不良品を選別除去でき
る穀粒色彩選別方法及び装置を提供することを技術的課
題とする。SUMMARY OF THE INVENTION In view of the above problems, the present invention discriminates a colored particle having a different color from a non-defective product, a foreign substance of the same color or transparent as a non-defective product and a powdery particle as a non-defective product in one process. Further, it is a technical object of the present invention to provide a method and an apparatus for grain color sorting that can reliably remove defective products from non-defective products.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するため
本発明の穀粒色彩選別方法は、異なる２波長域の光を穀
粒に照射するとともに、該穀粒からの前記２波長域の光
量を検出し、良品と色彩が異なる穀粒及び異物を識別し
て選別除去する一方、良品と同色もしくは透明な異物を
識別して選別除去する穀粒色彩選別方法において、前記
穀粒に前記２波長域以外の波長域を有する第３の光を照
射するとともに、前記穀粒からの前記第３の光の透過光
量を検出し、良品と内部性質の異なる穀粒を選別除去す
る、という技術的手段を講じた。In order to solve the above-mentioned problems, a grain color sorting method of the present invention irradiates light of two different wavelength ranges to a grain, and further comprises irradiating the grain with light of the two wavelength ranges. In the grain color sorting method of identifying and sorting and removing grains and foreign matters having different colors from non-defective products and identifying and removing foreign matters of the same color or transparent, the two wavelengths are added to the grains. Means for irradiating third light having a wavelength range other than the wavelength range, detecting the amount of transmission of the third light from the kernel, and selectively removing kernels having different internal properties from non-defective products. Was taken.
【００１１】また、本発明の穀粒色彩選別装置は、所定
の穀粒流路内に穀粒を案内するためのシュートを設け、
該シュートからの穀粒に異なる２波長域の光を照射する
照明部と、前記穀粒からの前記２波長域の光量を検出す
る受光部とからなる光学検出手段を前記穀粒流路の両側
方に対設し、前記受光部と連絡した制御部からの信号に
より作動するエジェクタを前記穀粒流路内に臨設した穀
粒色彩選別装置において、一方の前記光学検出手段の照
明部を、前記異なる２波長域の光を照射するとともに該
２波長域以外の第三の波長域の光を照射する照明部に形
成し、他方の前記光学検出手段の受光部を、前記２波長
域の一方の光量と前記第三の波長域の光量とを検出する
受光部に形成する、という技術的手段を講じた。Further, the grain color sorting apparatus of the present invention is provided with a chute for guiding grains in a predetermined grain channel,
An optical detecting means comprising an illuminating unit for irradiating the kernel from the shoot with light in two different wavelength ranges and a light receiving unit for detecting the amount of light in the two wavelength range from the kernel is provided on both sides of the kernel flow path. In a grain color sorting device in which an ejector operated by a signal from a control unit connected to the light receiving unit is provided in the grain flow path, the lighting unit of one of the optical detection units is It is formed in an illumination unit that irradiates light of two different wavelength ranges and irradiates light of a third wavelength range other than the two wavelength ranges, and the light receiving unit of the other optical detection unit is one of the two wavelength ranges. The technical means of forming the light receiving portion for detecting the light amount and the light amount in the third wavelength range is taken.
【００１２】前記２波長域の光を、可視光と近赤外光と
するとよい。Preferably, the light in the two wavelength ranges is visible light and near-infrared light.
【００１３】前記２波長域の光を、前記可視光の任意波
長域の光と近赤外光とするとともに、前記第三の波長域
の光を前記任意波長域以外の可視光とするとよい。The light in the two wavelength ranges may be light in an arbitrary wavelength range of the visible light and near-infrared light, and the light in the third wavelength range may be visible light outside the arbitrary wavelength range.
【００１４】[0014]
【発明の実施の形態】以下、本発明の一実施例を図面を
参照しながら説明する。図１において、フレーム１内の
一側上部に原料タンク２を設け、原料タンク２の下端は
振動供給樋３であって、バイブレータなどからなる振動
発生装置４上に載置される。そして、振動供給樋３は、
傾斜して設けたシュート５に接続してある。すなわち、
横断面をＶ字型となしたシュート５の上端は、振動供給
樋３の樋端に近接して設けられ、その下端は一対の光学
検出部６Ａ，６Ｂの間に臨ませ、さらに、シュート５の
下方には、シュート５の下端から落下する米粒を受ける
べき筒状の受樋７を設け、受樋７の下端には良品を排出
する搬送手段１３を連絡する。また、シュート５の下端
から受樋７内に落下する間の検出範囲Ｆ付近には、検出
範囲Ｆを落下する米粒中から不良品と異物とを除去する
ため、エジェクターバルブ８のノズル口を配設する。エ
ジェクターバルブ８はエヤー管９を介して図外のコンプ
レッサーに接続してあり、エジャクターバルブ８の下方
には不良品排出口１０を設け、不良品排出口１０には不
良品を排出する搬送手段１４を連絡する。そして、フレ
ーム１の上部には制御部としてのコントロールボックス
１１及び操作パネル１２を設ける。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, a raw material tank 2 is provided at an upper portion of one side of a frame 1, and a lower end of the raw material tank 2 is a vibration supply gutter 3, which is mounted on a vibration generator 4 such as a vibrator. And the vibration supply gutter 3 is
It is connected to a chute 5 provided at an angle. That is,
The upper end of the chute 5 having a V-shaped cross section is provided near the gutter end of the vibration supply gutter 3, and the lower end faces between the pair of optical detectors 6 </ b> A and 6 </ b> B. A cylindrical trough 7 for receiving rice grains falling from the lower end of the chute 5 is provided below, and the lower end of the trough 7 is connected to a conveying means 13 for discharging good products. In addition, a nozzle opening of the ejector valve 8 is arranged near the detection range F while falling into the gutter 7 from the lower end of the chute 5 in order to remove defective products and foreign substances from rice grains falling in the detection range F. Set up. The ejector valve 8 is connected to a compressor (not shown) through an air pipe 9. A defective product outlet 10 is provided below the ejector valve 8, and a conveying means for discharging the defective product is provided at the defective product outlet 10. Call 14 Further, a control box 11 and an operation panel 12 as a control unit are provided on the upper portion of the frame 1.
【００１５】図２は穀粒色彩選別装置の要部拡大図であ
り、以下、光学検出部６について説明する。FIG. 2 is an enlarged view of a main part of the grain color sorting apparatus. The optical detecting section 6 will be described below.
【００１６】光学検出部６は、所定の検出範囲Ｆを落下
する米粒に光を照射する照明部１５Ａ，１５Ｂと、米粒
からの光量を受光する受光部１８Ａ，１８Ｂと、バック
グラウンド１９Ａ〜１９Ｄとから構成され、検出範囲Ｆ
を挟んで対向して設けられている。The optical detection unit 6 includes illumination units 15A and 15B for irradiating light to rice grains falling in a predetermined detection range F, light receiving units 18A and 18B for receiving light amounts from the rice grains, and backgrounds 19A to 19D. And the detection range F
Are provided to face each other.
【００１７】そして、光学検出部６Ａの照明部１５Ａ
は、青色光域と赤色光域の波長を有する複数の蛍光管１
６Ａ，１６Ｂ，１６Ｃと、近赤外光域を有するハロゲン
電球１７とで構成され、光学検出部６Ｂの照明部１５Ｂ
は、青色光域の波長を有する複数の蛍光管２０Ａ，２０
Ｂ，２０Ｃと、近赤外光域の波長を有するハロゲン電球
２１とで構成されている。The illumination unit 15A of the optical detection unit 6A
Are a plurality of fluorescent tubes 1 having wavelengths in a blue light region and a red light region.
6A, 16B, and 16C, and a halogen bulb 17 having a near-infrared light range, and an illumination unit 15B of the optical detection unit 6B.
Are a plurality of fluorescent tubes 20A, 20A having a wavelength in the blue light region.
B, 20C, and a halogen bulb 21 having a wavelength in the near infrared light region.
【００１８】また、光学検出部６Ａの受光部１８Ａは２
つの受光手段２５Ａ，２５Ｂにより構成されており、受
光手段２５Ａは、集光レンズ２４と、青色フィルター２
２と、この青色フィルター２２を通過した光の光量を検
出して検出信号を出力するセンサー２３とを備え、受光
手段２５Ｂは、集光レンズ２６と、近赤外線フィルター
２７と、この近赤外線フィルター２７を通過した光の光
量を検出して検出信号を出力するセンサー２８とを備え
ている。The light receiving section 18A of the optical detecting section 6A has two light receiving sections.
The light receiving unit 25A includes a condenser lens 24 and a blue filter 2.
2 and a sensor 23 that detects the amount of light passing through the blue filter 22 and outputs a detection signal. The light receiving unit 25B includes a condenser lens 26, a near-infrared filter 27, and a near-infrared filter 27. And a sensor 28 that detects the amount of light that has passed through and outputs a detection signal.
【００１９】光学検出部６Ｂの受光部１８Ｂは２つの受
光手段２９Ａ，２９Ｂにより構成されており、受光手段
２９Ａは、集光レンズ３０と、青色フィルター３１と、
この青色フィルター３１を通過した光の光量を検出して
検出信号を出力するセンサー３２とを備え、受光手段２
９Ｂは、集光レンズ３３と、赤色フィルター３４と、こ
の赤色フィルター３４を通過した光の光量を検出して検
出信号を出力するセンサー３５とを備えている。The light receiving section 18B of the optical detecting section 6B comprises two light receiving means 29A and 29B. The light receiving means 29A includes a condenser lens 30, a blue filter 31,
A sensor 32 for detecting the amount of light passing through the blue filter 31 and outputting a detection signal;
9B includes a condenser lens 33, a red filter 34, and a sensor 35 that detects the amount of light passing through the red filter 34 and outputs a detection signal.
【００２０】なお、青色フィルター２２，３１として
は、波長域が例えば４００〜５５０ｎｍの範囲のフィル
ターを適宜選択すればよく、赤色フィルター３４として
は波長域が６００〜１１００ｎｍのフィルターを、近赤
外線フィルター２７としては波長域が１４００〜１６０
０ｎｍのフィルターを適宜選択すればよい。As the blue filters 22 and 31, a filter having a wavelength range of, for example, 400 to 550 nm may be appropriately selected. As the red filter 34, a filter having a wavelength range of 600 to 1100 nm is used. Wavelength range from 1400 to 160
A 0 nm filter may be appropriately selected.
【００２１】図３は本装置の制御回路を示すブロック図
であり、センサー２３，２８，３２，３５の検出信号
は、ＯＲゲート、増幅器、比較器及び演算回路等からな
る信号処理手段３６に連絡される。信号処理手段３６か
ら出力された除去信号３７はエジェクターバルブ８に連
絡され、ノズル口より空気を噴出して不良品及び異物の
除去が行われる。FIG. 3 is a block diagram showing a control circuit of the present apparatus. The detection signals of the sensors 23, 28, 32 and 35 are transmitted to a signal processing means 36 comprising an OR gate, an amplifier, a comparator and an arithmetic circuit. Is done. The removal signal 37 output from the signal processing means 36 is communicated to the ejector valve 8 and ejects air from the nozzle port to remove defective products and foreign matter.
【００２２】次に上記構成における作用について説明す
る。操作パネル１２に設けたスイッチをＯＮし、図外の
バケットエレベータのシュートパイプから原料タンク２
内に米粒を投入し、振動供給樋３を駆動すると米粒はそ
の樋端からシュート５内に落下し、順次、シュート５の
樋床を滑流するとともにシュート５下端から検出範囲Ｆ
に移送される。Next, the operation of the above configuration will be described. A switch provided on the operation panel 12 is turned on, and a raw material tank 2 is fed from a chute pipe of a bucket elevator (not shown).
The rice grains fall into the chute 5 from the end of the chute 5 when the vibrating supply gutter 3 is driven. The rice grains sequentially slide on the gutter floor of the chute 5 and the detection range F from the lower end of the chute 5.
Is transferred to
【００２３】検出範囲に供給された米粒は照明部１５
Ａ，１５Ｂにより照明され、米粒からの光が各々の受光
手段２５，２９に入射される。蛍光管１６からの青色域
の光は、米粒からの反射光としてレンズ２４及び青色フ
ィルター２２を通ってセンサー２３に受光されるととも
に、蛍光管１６からの赤色光域の光は、米粒からの透過
光としてレンズ３３及び赤色フィルター３４を通ってセ
ンサー３５に受光される。The rice grains supplied to the detection area are
Lights from the rice grains are illuminated by A and 15B, and are incident on the respective light receiving means 25 and 29. The light in the blue region from the fluorescent tube 16 is received by the sensor 23 through the lens 24 and the blue filter 22 as reflected light from the rice grains, and the light in the red region from the fluorescent tube 16 is transmitted from the rice particles. The light is received by the sensor 35 through the lens 33 and the red filter 34 as light.
【００２４】また、ハロゲン電球１７からの近赤外光
は、米粒からの反射光としてレンズ２６及び近赤外線フ
ィルター２７を通ってセンサー２８に受光され、蛍光管
２０からの青色域の光は、米粒からの反射光としてレン
ズ３０及び青色フィルター３１を通ってセンサー３２に
受光される。The near-infrared light from the halogen bulb 17 is received by the sensor 28 as reflected light from the rice grains through the lens 26 and the near-infrared filter 27, and the light in the blue region from the fluorescent tube 20 is reflected by the rice grains. Is reflected by the sensor 32 through the lens 30 and the blue filter 31 as reflected light.
【００２５】センサー２３，２８，３２，３５は常時、
蛍光管２０、ハロゲン電球２１、蛍光管１６及び蛍光管
１６により照明され良品と同じ明るさに調整されたバッ
クグラウンド１９Ｃ，１９Ｄ，１９Ａ，１９Ｂも監視し
ている。図４は各センサー２８，２３，３２，３５及び
除去信号３７の出力波形であるが、センサー２３，３２
の波形は、検出範囲Ｆに良品が通過すると信号の変化が
小さいが、着色粒、黒色の石等の可視光域の反射光で識
別できる粒子が通過すると大きく明暗の差が感知され
る。The sensors 23, 28, 32, 35 are always
The fluorescent tubes 20, the halogen bulb 21, the fluorescent tubes 16, and the backgrounds 19C, 19D, 19A, and 19B illuminated by the fluorescent tubes 16 and adjusted to the same brightness as a good product are also monitored. FIG. 4 shows output waveforms of the sensors 28, 23, 32, and 35 and the removal signal 37.
In the waveform of, a change in signal is small when a non-defective product passes through the detection range F, but a large difference between light and dark is perceived when particles such as colored particles and black stones that can be identified by reflected light in the visible light range pass.
【００２６】また、前記センサー２３，３２の信号に変
化が生じない場合であっても、ガラス片、プラスチック
片、白い石等の近赤外域の反射光で識別できる異物が検
出範囲Ｆを通過した場合には、センサー２８の波形は大
きく明暗の差を感知する。Further, even when the signals of the sensors 23 and 32 do not change, a foreign matter such as a glass piece, a plastic piece, or a white stone that can be identified by reflected light in the near infrared region has passed through the detection range F. In this case, the waveform of the sensor 28 senses a large difference in brightness.
【００２７】更に、前記各センサー２３，３２，２８の
信号に変化が生じない場合であっても、米粒中には、米
粒であって良品と同等の色を有しており、内部に粉状質
を有している粉状粒が混入している。センサー３５の波
形は、検出範囲Ｆに良品が通過すると信号の変化は小さ
いが、透過光で検出できる粉状粒が通過すると大きく明
暗の差が感知される。Furthermore, even if the signals of the sensors 23, 32, and 28 do not change, the rice grains have the same color as non-defective rice grains. The powdery granules having quality are mixed. As for the waveform of the sensor 35, the change in signal is small when a non-defective product passes through the detection range F, but a large difference in brightness is detected when powdery particles that can be detected by transmitted light pass.
【００２８】各センサーー２３，２８，３２，３５の信
号出力は、信号処理手段３６に連絡され、この信号処理
手段３６において増幅、比較及び演算処理が行われ、除
去信号３７が出力される。除去信号３７はエジェクター
バルブ８を作動し、ノズル口から圧縮空気が噴射され
る。そして、圧縮空気は、着色粒、良品と同色もしくは
透明の異物及び粉状粒を良品中から吹き飛ばし、吹き飛
ばされた着色粒、異物及び粉状粒は不良品排出口１０か
ら搬送手段１４へ移送され機外へ排出され、良品は受樋
７を通って搬送手段１３により回収される。The signal output of each of the sensors 23, 28, 32, 35 is sent to a signal processing means 36, which performs amplification, comparison, and arithmetic processing, and outputs a removal signal 37. The removal signal 37 operates the ejector valve 8, and compressed air is injected from the nozzle port. Then, the compressed air blows out the colored particles, the same color or transparent foreign matter and powdery particles as the non-defective product from the non-defective product, and the blown-out colored particles, foreign material and the powdery particle are transferred from the defective product discharge port 10 to the conveying means 14. The non-defective product is discharged out of the machine and collected by the conveying means 13 through the receiving trough 7.
【００２９】ハロゲン電球２１と検出範囲Ｆとの間に仕
切板３８を設けてもよく、この場合、ハロゲン電球２１
からの光は直接検出範囲に照射されることなく、バック
グラウンド１９Ｄを照明する。A partition plate 38 may be provided between the halogen lamp 21 and the detection range F. In this case,
Does not directly irradiate the detection range, but illuminates the background 19D.
【００３０】上記実施の形態においては、蛍光灯１６を
青色光域と赤色光域の波長を有する蛍光管に形成してい
るが、例えば、蛍光管１６Ａを赤色光域の波長を有する
蛍光間に形成し、蛍光管１６Ｂ，Ｃを青色光域の波長を
有する蛍光管に形成してもよく、蛍光管１６Ａからの赤
色光は、米粒からの透過光としてセンサー３５により受
光され、蛍光管１６Ｂ，１６Ｃからの青色光は、米粒か
らの反射光としてセンサー２３により受光され、ハロゲ
ン電球１７からの近赤外光は、米粒からの反射光として
センサー２８に受光され、粉状粒は着色粒及び異物とと
もに除去可能である。この構成においては、光学検出手
段６Ｂの蛍光管２０Ａを消灯する場合もある。In the above embodiment, the fluorescent lamp 16 is formed as a fluorescent tube having a wavelength in the blue light region and a red light region. For example, the fluorescent tube 16A is formed between fluorescent light having a wavelength in the red light region. The fluorescent tubes 16B and C may be formed as fluorescent tubes having a wavelength in the blue light range. The red light from the fluorescent tube 16A is received by the sensor 35 as transmitted light from rice grains, and the fluorescent tubes 16B and C are received. The blue light from 16C is received by the sensor 23 as reflected light from rice grains, the near-infrared light from the halogen bulb 17 is received by the sensor 28 as reflected light from rice grains, and the powdery grains are colored grains and foreign matter. And can be removed. In this configuration, the fluorescent tube 20A of the optical detection means 6B may be turned off.
【００３１】また、光学検出手段６Ａの蛍光管１６を全
て青色光域の波長を有する蛍光管に形成するとともに、
受光手段２９Ｂを受光手段２５Ｂと同様の構成とし、バ
ックグラウンド１９Ｂをバックグラウンド１９Ｄと同様
の構成とし、更に、光学検出手段６Ａ，６Ｂの一方に赤
色光域の波長を有する光源を設け、光学検出手段６Ａ，
６Ｂの他方に赤色光の受光手段及びバックグラウンドを
設けた構成とした場合であっても、青色光の反射光量、
近赤外光の反射光量及び赤色光の透過光量を同時に受光
することができ、良品と色彩が異なる着色粒、良品と同
色もしくは透明の異物及び粉状粒を１回の処理で良品と
識別し、１度に良品から選別除去できる。Further, the fluorescent tubes 16 of the optical detecting means 6A are all formed as fluorescent tubes having a wavelength in the blue light range,
The light receiving unit 29B has the same configuration as the light receiving unit 25B, the background 19B has the same configuration as the background 19D, and a light source having a wavelength in the red light range is provided in one of the optical detection units 6A and 6B. Means 6A,
6B, the amount of reflected blue light,
The reflected light amount of near-infrared light and the transmitted light amount of red light can be received at the same time, and colored particles different in color from non-defective products, foreign particles and powder particles of the same color or transparent as non-defective products are identified as non-defective products in one process. It can be selectively removed from non-defective products at a time.
【００３２】なお、上記実施の形態においては、良品と
着色粒との識別のために青色光を用い、良品と粉状粒と
の識別のために赤色光を用いているが、良品と着色粒と
の識別に用いる光は可視光であればよく、良品と粉状粒
との識別に用いる光は、良品と着色粒との識別に用いる
光及び、良品と異物との識別に用いる光以外の光であれ
ばよい。なお、赤色光域の波長の光源としては、蛍光管
ではなく７６０〜８００ｎｍの波長域を有するスリット
レーザー光源でもよい。In the above embodiment, blue light is used to distinguish non-defective products from colored particles, and red light is used to discriminate non-defective products from powdery particles. The light used for identifying non-defective products and powdery particles may be any light other than the light used for discriminating non-defective products from colored particles and the light used for discriminating non-defective products from foreign matter. Any light is acceptable. As a light source having a wavelength in the red light range, a slit laser light source having a wavelength range of 760 to 800 nm may be used instead of the fluorescent tube.
【００３３】[0033]
【発明の効果】異なる２波長域の光を穀粒に照射すると
ともに、該穀粒からの前記２波長域の光量を検出し、良
品と色彩が異なる穀粒及び異物を識別して選別除去する
一方、良品と同色もしくは透明な異物を識別して選別除
去する穀粒色彩選別方法において、前記穀粒に前記２波
長域以外の波長域を有する第３の光を照射するととも
に、前記穀粒からの前記第３の光の透過光量を検出し、
良品と内部性質の異なる穀粒を選別除去することによ
り、内部に白色不透明部を有する粉状粒を識別して除去
することができるため、良品と色彩が異なる穀粒及び異
物、良品と同色もしくは透明な異物及び粉状粒を１回の
処理で良品と識別し、１度に良品から選別除去すること
ができる。According to the present invention, light of two different wavelength ranges is irradiated onto a grain, and the amount of light of the two wavelength range from the grain is detected. On the other hand, in a kernel color sorting method for identifying and removing a foreign substance of the same color or transparent as a non-defective product, while irradiating the kernel with third light having a wavelength range other than the two wavelength range, Detecting the transmitted light amount of the third light of
By selectively removing grains having good internal properties from those of non-defective products, it is possible to identify and remove powdery grains having white opaque portions inside. Transparent foreign matter and powdery particles can be identified as non-defective products by a single process, and can be selectively removed from non-defective products at once.
【００３４】所定の穀粒流路内に穀粒を案内するための
シュートを設け、該シュートからの穀粒に異なる２波長
域の光を照射する照明部と、前記穀粒からの前記２波長
域の光量を検出する受光部とからなる光学検出手段を前
記穀粒流路の両側方に対設し、前記受光部と連絡した制
御部からの信号により作動するエジェクタを前記穀粒流
路内に臨設した穀粒色彩選別装置において、一方の前記
光学検出手段の照明部を、前記異なる２波長域の光を照
射するとともに該２波長域以外の第三の波長域の光を照
射する照明部に形成し、他方の前記光学検出手段の受光
部を、前記２波長域の一方の光量と前記第三の波長域の
光量とを検出する受光部に形成することにより、穀粒か
らの第三の波長域の光の透過光量を受光部により検出す
ることができ、良品と内部性質が異なる穀粒を識別する
ことができる。そのため、受光部と連絡した制御部から
の信号により、シュートからの穀粒中に含まれる良品と
色彩が異なる穀粒及び異物、良品と同色もしくは透明の
異物及び粉状粒を１回の処理で良品と識別し、エジェク
タの作動により確実に良品から全ての不良品を選別除去
することができる。A chute for guiding a grain in a predetermined grain channel is provided, and an illumination unit for irradiating the grain from the chute with light in two different wavelength ranges, and the two wavelengths from the grain are provided. Optical detecting means comprising a light receiving section for detecting the light amount of the area is provided on both sides of the grain flow path, and an ejector operated by a signal from a control section connected to the light receiving section is provided in the grain flow path. In the grain color sorting device provided in the above, the illuminating unit of one of the optical detecting means irradiates light of the two different wavelength ranges and irradiates light of a third wavelength range other than the two wavelength ranges. The light receiving portion of the other optical detection means is formed as a light receiving portion for detecting the light amount of one of the two wavelength ranges and the light amount of the third wavelength range, so that the third The transmitted light amount of light in the wavelength range of Internal properties can identify the different grains and. Therefore, according to a signal from the control unit in communication with the light receiving unit, grains and foreign matters different in color from non-defective goods contained in the grains from the shoot, foreign substances and powdery grains of the same color or transparent as non-defective goods are processed in one process. By discriminating the non-defective product, the operation of the ejector can reliably remove all defective products from the non-defective product.
【００３５】前記２波長域の光を、可視光と近赤外光と
することにより、可視光の反射光量で良品と異なる色彩
の穀粒及び異物を確実に識別することができ、近赤外光
の反射光量で良品と同色もしくは透明の異物を確実に識
別することができる。By making the light in the two wavelength ranges visible light and near-infrared light, it is possible to reliably discriminate grains and foreign matters of colors different from non-defective products by the amount of reflected visible light. The same color or transparent foreign matter as a non-defective product can be reliably identified by the amount of reflected light.
【００３６】前記２波長域の光を、前記可視光の任意波
長域の光と近赤外光とするとともに、前記第三の波長域
の光を前記任意波長域以外の可視光とすることにより、
透過光量を受光するセンサーを可視光域に感度が高いセ
ンサーとすることができ、可視光域以外の波長域に感度
が高いセンサーに比べコストを低くすることができる。The light in the two wavelength ranges is converted into light in the arbitrary wavelength range of the visible light and near-infrared light, and the light in the third wavelength range is converted into visible light other than the arbitrary wavelength range. ,
The sensor that receives the transmitted light amount can be a sensor having high sensitivity in the visible light range, and the cost can be reduced as compared with a sensor having high sensitivity in a wavelength range other than the visible light range.
【図１】本発明の穀粒色彩選別装置の側断面図である。FIG. 1 is a side sectional view of a grain color sorting device of the present invention.
【図２】本発明の穀粒色彩選別装置の要部拡大図であ
る。FIG. 2 is an enlarged view of a main part of the grain color sorting device of the present invention.
【図３】本発明の装置の制御回路を示すブロック図であ
る。FIG. 3 is a block diagram showing a control circuit of the device of the present invention.
【図４】本発明の装置の各構成における出力波形の説明
図である。FIG. 4 is an explanatory diagram of an output waveform in each configuration of the device of the present invention.
【図５】従来の穀粒色彩選別装置の要部拡大図である。FIG. 5 is an enlarged view of a main part of a conventional grain color sorting apparatus.
１ フレーム ２ 原料タンク ３ 振動供給樋 ４ 振動発生装置 ５ シュート ６ 光学検出部 ７ 受樋 ８ エジェクターバルブ ９ エヤー管 １０ 不良品排出口 １１ コントロールボックス １２ 操作パネル １３ 搬送手段 １４ 搬送手段 １５ 照明部 １６ 蛍光管 １７ ハロゲン電球 １８ 受光部 １９ バックグラウンド ２０ 蛍光管 ２１ ハロゲン電球 ２２ 青色フィルター ２３ センサー ２４ 集光レンズ ２５ 受光手段 ２６ 集光レンズ ２７ 近赤外線フィルター ２８ センサー ２９ 受光手段 ３０ 集光レンズ ３１ 青色フィルター ３２ センサー ３３ 集光レンズ ３４ 赤色フィルター ３５ センサー ３６ 信号処理手段 ３７ 除去信号 ３８ 仕切板 REFERENCE SIGNS LIST 1 frame 2 raw material tank 3 vibration supply gutter 4 vibration generator 5 chute 6 optical detector 7 gutter 8 ejector valve 9 air tube 10 defective outlet 11 control box 12 operation panel 13 transport means 14 transport means 15 illumination section 16 fluorescent light Tube 17 Halogen bulb 18 Light receiving section 19 Background 20 Fluorescent tube 21 Halogen bulb 22 Blue filter 23 Sensor 24 Condensing lens 25 Light receiving means 26 Condensing lens 27 Near infrared filter 28 Sensor 29 Light receiving means 30 Condensing lens 31 Blue filter 32 Sensor 33 condensing lens 34 red filter 35 sensor 36 signal processing means 37 removal signal 38 partition plate
Claims (4)
ともに、該穀粒からの前記２波長域の光量を検出し、良
品と色彩が異なる穀粒及び異物を識別して選別除去する
一方、良品と同色もしくは透明な異物を識別して選別除
去する穀粒色彩選別方法において、前記穀粒に前記２波
長域以外の波長域を有する第３の光を照射するととも
に、前記穀粒からの前記第３の光の透過光量を検出し、
良品と内部性質の異なる穀粒を選別除去することを特徴
とする穀粒色彩選別方法。1. A method for irradiating a grain with light in two different wavelength ranges and detecting the amount of light in the two wavelength ranges from the grain to identify and remove grains and foreign matter having different colors from non-defective products. On the other hand, in a kernel color sorting method for identifying and removing a foreign substance of the same color or transparent as a non-defective product, while irradiating the kernel with third light having a wavelength range other than the two wavelength range, Detecting the transmitted light amount of the third light of
A grain color sorting method characterized by sorting and removing non-defective grains having different internal properties.
のシュートを設け、該シュートからの穀粒に異なる２波
長域の光を照射する照明部と、前記穀粒からの前記２波
長域の光量を検出する受光部とからなる光学検出手段を
前記穀粒流路の両側方に対設し、前記受光部と連絡した
制御部からの信号により作動するエジェクタを前記穀粒
流路内に臨設した穀粒色彩選別装置において、一方の前
記光学検出手段の照明部を、前記異なる２波長域の光を
照射するとともに該２波長域以外の第三の波長域の光を
照射する照明部に形成し、他方の前記光学検出手段の受
光部を、前記２波長域の一方の光量と前記第三の波長域
の光量とを検出する受光部に形成したことを特徴とする
穀粒色彩選別装置。2. An illumination unit for providing a chute for guiding a grain in a predetermined grain channel, irradiating the grain from the chute with light in two different wavelength ranges, and Optical detecting means comprising a light receiving unit for detecting the light amount in two wavelength ranges is provided on both sides of the grain flow path, and an ejector operated by a signal from a control unit connected to the light receiving unit is provided with the grain flow. In the grain color sorting device provided in the road, the illuminating unit of one of the optical detection means irradiates the light of the two different wavelength ranges and irradiates the light of the third wavelength range other than the two wavelength ranges. A grain formed in an illumination unit, wherein the light receiving unit of the other optical detection unit is formed in a light receiving unit that detects one of the two wavelength ranges and the third wavelength range. Color sorting device.
としてなる請求項２記載の穀粒色彩選別装置。3. The grain color sorter according to claim 2, wherein the light in the two wavelength ranges is a visible light and a near-infrared light.
波長域の光と近赤外光とするとともに、前記第三の波長
域の光を前記任意波長域以外の可視光としてなる請求項
２叉は３記載の穀粒色彩選別装置。4. The light in the two wavelength ranges is light in an arbitrary wavelength range of the visible light and near-infrared light, and the light in the third wavelength range is visible light in a wavelength other than the arbitrary wavelength range. A grain color sorting device according to claim 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17297897A JPH11621A (en) | 1997-06-12 | 1997-06-12 | Method for selecting/sorting grain by color and selecting/ sorting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17297897A JPH11621A (en) | 1997-06-12 | 1997-06-12 | Method for selecting/sorting grain by color and selecting/ sorting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11621A true JPH11621A (en) | 1999-01-06 |
Family
ID=15951904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17297897A Pending JPH11621A (en) | 1997-06-12 | 1997-06-12 | Method for selecting/sorting grain by color and selecting/ sorting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11621A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002040967A1 (en) * | 2000-11-17 | 2002-05-23 | Foss Tecator Ab | A method and device for recording images of grains from cereals to detect cracking |
| KR100480319B1 (en) * | 2002-05-14 | 2005-04-06 | 한잠기계(주) | Rice-selecting device by color light intensity |
| JP2007064734A (en) * | 2005-08-30 | 2007-03-15 | Daiichi Jitsugyo Viswill Co Ltd | Inspection device of particulate material |
| KR100755224B1 (en) * | 2001-11-09 | 2007-09-04 | 가부시끼가이샤 사따께 | Color sorting apparatus for granular object with optical detection device consisting of ccd linear sensor |
| JP2015094711A (en) * | 2013-11-13 | 2015-05-18 | 東洋ガラス機械株式会社 | Discrimination device |
| US9487690B2 (en) | 2011-12-27 | 2016-11-08 | Panasonic Intellectual Property Management Co., Ltd. | Anisotropic heat conductive composition and molded product thereof |
| CN109732765A (en) * | 2018-12-27 | 2019-05-10 | 佛山欧神诺陶瓷有限公司 | A method of for ceramic tile identification, record, tracking and sorting |
| CN110560379A (en) * | 2019-09-17 | 2019-12-13 | 安徽捷迅光电技术有限公司 | Husked rice separation color sorting system |
| JP2020101440A (en) * | 2018-12-21 | 2020-07-02 | 株式会社Ihi | Powder flow control device for spectroscopy |
| FR3139909A1 (en) | 2022-09-21 | 2024-03-22 | Bucher Vaslin | OPTICAL SORTING OF NON-CEREAL FRUITS BY COMBINATION OF ELECTROMAGNETIC RADIATION |
-
1997
- 1997-06-12 JP JP17297897A patent/JPH11621A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002040967A1 (en) * | 2000-11-17 | 2002-05-23 | Foss Tecator Ab | A method and device for recording images of grains from cereals to detect cracking |
| US6888954B2 (en) | 2000-11-17 | 2005-05-03 | Foss Analytical Ab | Device and method for recording images |
| KR100755224B1 (en) * | 2001-11-09 | 2007-09-04 | 가부시끼가이샤 사따께 | Color sorting apparatus for granular object with optical detection device consisting of ccd linear sensor |
| KR100480319B1 (en) * | 2002-05-14 | 2005-04-06 | 한잠기계(주) | Rice-selecting device by color light intensity |
| JP2007064734A (en) * | 2005-08-30 | 2007-03-15 | Daiichi Jitsugyo Viswill Co Ltd | Inspection device of particulate material |
| US9487690B2 (en) | 2011-12-27 | 2016-11-08 | Panasonic Intellectual Property Management Co., Ltd. | Anisotropic heat conductive composition and molded product thereof |
| JP2015094711A (en) * | 2013-11-13 | 2015-05-18 | 東洋ガラス機械株式会社 | Discrimination device |
| JP2020101440A (en) * | 2018-12-21 | 2020-07-02 | 株式会社Ihi | Powder flow control device for spectroscopy |
| CN109732765A (en) * | 2018-12-27 | 2019-05-10 | 佛山欧神诺陶瓷有限公司 | A method of for ceramic tile identification, record, tracking and sorting |
| CN110560379A (en) * | 2019-09-17 | 2019-12-13 | 安徽捷迅光电技术有限公司 | Husked rice separation color sorting system |
| FR3139909A1 (en) | 2022-09-21 | 2024-03-22 | Bucher Vaslin | OPTICAL SORTING OF NON-CEREAL FRUITS BY COMBINATION OF ELECTROMAGNETIC RADIATION |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3079932B2 (en) | Grain color sorter | |
| JPH07155702A (en) | Grain color sorting device | |
| EP0789633B1 (en) | Sorting apparatus | |
| US6078018A (en) | Sorting apparatus | |
| JP2010042326A (en) | Optical cereal grain sorting apparatus | |
| JP2008302314A (en) | Optical rice grain sorter | |
| JP2001145855A (en) | Method and apparatus for sorting particle | |
| JPH0796253A (en) | Bean color classifier | |
| JPH11621A (en) | Method for selecting/sorting grain by color and selecting/ sorting device | |
| JP2000157936A (en) | Granular material sorting method and granular material sorting device | |
| RU2403100C2 (en) | Sorter to grade grain to colour | |
| RU83436U1 (en) | DEVICE FOR SORTING GRAIN BY COLOR | |
| CA2136779A1 (en) | Process for the optical sorting of bulk material | |
| JPH11337495A (en) | Grain color sorting method and apparatus | |
| JP2000107703A (en) | Method and machine for separating defective rice mixed in mixed rice | |
| JP4674390B2 (en) | Brown rice color sorting method and brown rice color sorting device | |
| JP2001300434A (en) | Apparatus for distinguishing granular material | |
| JP4465816B2 (en) | Brown rice color sorting method and brown rice color sorting device | |
| JP2000002662A (en) | Color sorting machine and adjusting method for background in the color sorting machine | |
| JPH07104284B2 (en) | Rice grain quality judgment method | |
| JP3058196U (en) | Sorting device | |
| JPH0114829B2 (en) | ||
| JP5218729B2 (en) | Pistachio grain sorting device with shell | |
| JP2005028302A (en) | Color sorting machine for wheat | |
| JPH10323630A (en) | Color separator |