JPH1190347A - Defect detector and defective article remover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a defect detector which allows the easy exchange of cleaning members for cleaning the window surfaces of housing sections for housing illumination means and photodetecting means, etc., with the least possible labor and does not require the working space for maintenance on the lateral side of the device. SOLUTION: This defect detector discriminates the presence or absence of a defective article in accordance with the photodetecting information of the photodetecting means for receiving the detection light from a granular body group illuminated by illumination means 4A, 4B. The illumination means 4A, 4B and the photodetecting means are housed in a pair of the housing sections 13A, 13B which are arranged to face each other across the point where the granular body group is planned to exist and have the window parts 14A, 14B for light transmission in the state that the spacing therebetween is narrower toward the lower side in a lateral view. The cleaning members 23 having contact surfaces 23a in contact with the respective window parts and driving means 26 for moving these members along a window surface direction are constituted as a unit body U. The unit body U is constituted freely insertably and removably in the vertical direction of the device body.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、粒状体群を検査対
象物として、その検査対象物の存在予定箇所を照明する
照明手段と、前記照明手段にて照明された前記検査対象
物からの検出光を受光する受光手段とが、前記存在予定
箇所を挟んで対向配置され且つ前記存在予定箇所に面す
る側に光透過用の窓部を備えた一対の収納部に収納さ
れ、前記各窓部に接当する清掃部材をその窓面方向に沿
って移動させて前記各窓部の外面を清掃する清掃手段
と、前記受光手段の受光情報に基づいて、前記粒状体群
における不良物の存否を判別する判別手段とが設けられ
た不良検出装置、及び、その不良検出装置によって検出
された不良物を除去するための不良物除去装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illumination means for illuminating a place where an inspection object is supposed to exist with a group of granular objects as an inspection object, and detection from the inspection object illuminated by the illumination means. Light-receiving means for receiving light, are arranged opposite to each other with the expected location therebetween and housed in a pair of storage sections provided with a window for light transmission on the side facing the expected existence location; Cleaning means for cleaning the outer surface of each window by moving the cleaning member in contact with the window surface direction, and based on light receiving information of the light receiving means, the presence or absence of a defective in the particulate group. The present invention relates to a defect detection device provided with a discriminating means for discriminating, and a defect removal device for removing a defect detected by the defect detection device.

【０００２】[0002]

【従来の技術】上記不良検出装置では、例えば精米機等
からの米粒群を検査対象物の粒状体群として所定経路に
沿って移送しながら、米粒群が検査用の存在予定箇所に
移送されると、経路横方向から照明手段である蛍光灯等
の光源にて米粒群を照明して、米粒群で反射し又は米粒
群を透過した検出光をフォトセンサ等の受光手段にて受
光し、その受光レベルが正常な検査対象物に対する適正
光量範囲を外れると、着色米等の不良米や石・プラスチ
ック等の不良物が存在すると判別していた。尚、上記不
良物は、検査箇所よりも経路下流側箇所において、噴射
ノズル等によってエアーを吹き付けられて、正常物の経
路から分離して除去される。2. Description of the Related Art In the above defect detecting apparatus, for example, while transferring a group of rice grains from a rice mill or the like along a predetermined path as a group of particles of an inspection object, the group of rice grains is transferred to an expected location for inspection. And, illuminating the rice grain group from a light source such as a fluorescent lamp as an illuminating means from the side of the path, and detecting light reflected by the rice grain group or transmitted through the rice grain group is received by a light receiving means such as a photo sensor. If the light receiving level is out of the appropriate light amount range for the normal inspection target, it is determined that defective rice such as colored rice and defective such as stone and plastic are present. The defective object is separated from the normal object path by a jet nozzle or the like at a position downstream of the inspection point on the path, and is separated from the normal object path.

【０００３】そして、米粒群等からの塵埃が照明光源や
受光センサに付着した場合の装置性能の低下を防止する
ために、前記存在予定箇所を挟んで配置される照明光源
や受光センサ等を、収納部の存在予定箇所に面する側に
照明光や検出光を透過させる窓部を備えた箱型の収納部
に収納させ、さらに、塵埃等が窓の表面に蓄積すると、
光透過率が低下して検査精度が悪くなるので、所定時間
の検査を行うと、窓の表面に接当したワイパー等の清掃
部材をロッドレスシリンダ等の駆動手段によって窓面方
向に沿って移動させて窓面を清掃するようにしている
（例えば、特開平２−２１９８０号公報参照）。In order to prevent the performance of the apparatus from deteriorating when dust from the rice grains or the like adheres to the illumination light source and the light receiving sensor, an illumination light source and a light receiving sensor that are arranged with the expected location interposed therebetween are: When the storage unit is stored in a box-shaped storage unit having a window that transmits illumination light and detection light on the side facing the expected location of the storage unit, and further, when dust and the like accumulate on the surface of the window,
When the inspection is performed for a predetermined time, a cleaning member such as a wiper in contact with the surface of the window is moved along the direction of the window surface by a driving means such as a rodless cylinder, since the light transmittance is reduced and the inspection accuracy is deteriorated. In this way, the window surface is cleaned (see, for example, Japanese Patent Application Laid-Open No. 2-2980).

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、上記従
来技術では、清掃部材を移動させるための駆動手段（ロ
ッドレスシリンダ等）を横姿勢状態で機枠（フレーム）
に対して固定して支持させているので、例えば清掃部材
（ワイパー）の交換等のメンテナンスを行う場合には、
横側面カバーを取り外す必要があって、メンテナンス作
業が面倒で多くの手間のかかるものになり、同時に、カ
バーを取り外すための作業空間が装置横側方に必要にな
るので、例えば複数台の装置を横方向に密接させて極力
狭いスペースに設置することができないという不都合が
あった。However, in the above-mentioned prior art, the driving means (rodless cylinder or the like) for moving the cleaning member is moved in the horizontal posture in the machine frame.
For example, when maintenance such as replacement of a cleaning member (wiper) is performed,
Since it is necessary to remove the lateral side cover, maintenance work is troublesome and much troublesome, and at the same time, a work space for removing the cover is required on the side of the device, so for example, multiple devices There is a disadvantage that it cannot be installed in a space as narrow as possible by closely contacting in the lateral direction.

【０００５】本発明は、上記実情に鑑みてなされたもの
であって、その目的は、上記従来技術の不具合を解消さ
せるべく、清掃部材の交換等のためのメンテナンスを極
力少ない手間で容易にできるとともに、装置横側方にメ
ンテナンス用の作業空間を必要としない不良検出装置を
得ることにある。The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to easily perform maintenance for replacing a cleaning member and the like with as little labor as possible in order to solve the above-mentioned problems of the prior art. Another object of the present invention is to provide a defect detection device that does not require a maintenance work space on the side of the device.

【０００６】[0006]

【課題を解決するための手段】請求項１では、粒状体群
を検査対象物としてその検査対象物の存在予定箇所が照
明手段にて照明され、その照明手段にて照明された粒状
体群からの検出光を受光する受光手段の受光情報に基づ
いて粒状体群における不良物の存否が判別される不良検
出装置において、上記照明手段と受光手段とが、前記存
在予定箇所を挟んで対向配置された一対の収納部に収納
されるとともに、その一対の収納部の上記存在予定箇所
に面する側に、窓面方向に沿う横方向視において下方側
ほど互いの間隔が狭くなる状態に配置された光透過用の
窓部が備えられ、装置本体への装着状態において各窓部
に接当する接当面を備えた清掃部材と、その清掃部材を
前記窓面方向に沿って横方向に移動させるように駆動す
る駆動手段とが、各窓部を清掃する清掃手段としてユニ
ット体に構成され、そのユニット体が装置本体に対して
上下方向に挿脱自在に構成されている。According to the first aspect of the present invention, a portion where the inspection object is to be present is illuminated by illumination means using the group of granular objects as an inspection object, and the particles are illuminated by the illumination means. In a defect detection device in which the presence or absence of a defective object in the group of particulates is determined based on light receiving information of a light receiving unit that receives the detection light, the illuminating unit and the light receiving unit are arranged to face each other with the expected location therebetween. The pair of storage sections are accommodated, and the pair of storage sections are arranged on the side facing the expected existence location in such a manner that the distance between the storage sections becomes narrower toward the lower side as viewed in the lateral direction along the window surface direction. A cleaning member provided with a window for light transmission and having a contact surface that comes into contact with each window in a state of being attached to the apparatus main body; and moving the cleaning member in the lateral direction along the window surface direction. And driving means for driving the Is configured in the unit body as the cleaning device for cleaning the window portion, the unit body is configured to detachably in a vertical direction with respect to the apparatus main body.

【０００７】従って、清掃部材の交換等のメンテナンス
を行う場合には、ユニット体に構成された清掃手段を装
置本体から上向きに離脱させる一方、ユニット体に構成
された清掃手段を装置本体に対して下向きに挿入して装
置本体へ装着することができるので、従来技術のように
清掃手段を機枠に固定している場合では、装置横側面の
カバーを取り外す必要があって、メンテナンス作業が面
倒で多くの手間がかかるのに比べて、極力少ない手間で
容易にでき、同時に、従来技術では、カバー取り外し用
の作業空間が装置横側方に必要で、例えば複数台の装置
を横方向に密接させて極力狭いスペースに設置すること
ができないのに比べて、装置横側方にメンテナンス用の
作業空間を必要とせず、設置スペースの有効利用が可能
な不良検出装置が得られる。Therefore, when performing maintenance such as replacement of the cleaning member, the cleaning means provided in the unit body is detached upward from the apparatus main body while the cleaning means provided in the unit body is moved to the apparatus main body. When the cleaning means is fixed to the machine frame as in the prior art, it is necessary to remove the cover on the side surface of the device, so that maintenance work is troublesome. Compared to a lot of labor, it can be done easily with as little labor as possible, and at the same time, in the prior art, a work space for removing the cover is required on the side of the apparatus, for example, when a plurality of apparatuses are closely connected in the lateral direction. A defect detection device that does not require a work space for maintenance on the side of the device and allows effective use of the installation space It is.

【０００８】請求項２では、請求項１において、清掃手
段を構成するユニット体に、前記存在予定箇所を照明す
る照明用の光源が組み込まれている。According to a second aspect of the present invention, in the first aspect, a light source for illumination for illuminating the expected location is incorporated in the unit constituting the cleaning means.

【０００９】従って、ユニット体を装置本体から上向き
に離脱させて、上記照明用の光源の交換等を行うことに
より、極力少ない手間で容易に、照明用の光源の交換等
のメンテナンスを行うことができ、もって、請求項１の
好適な手段が得られる。Therefore, by detaching the unit body upward from the apparatus main body and exchanging the light source for illumination or the like, maintenance such as exchange of the light source for illumination can be easily performed with as little labor as possible. Thus, the preferred measures of claim 1 are obtained.

【００１０】請求項３では、請求項１又は２の不良検出
装置が備えられ、粒状体群が予定移送経路に沿って移送
され、予定移送経路における受光手段の受光位置つまり
前記存在予定箇所に移送された粒状体群について、上記
受光手段の受光情報に基づく不良の存否が判別され、そ
の判別に基づいて、受光位置に移送した粒状体群のうち
の正常物と不良物とを異なる経路に分離して移送され
る。According to a third aspect of the present invention, there is provided the defect detecting device according to the first or second aspect, wherein the granular material group is transported along a predetermined transfer path, and is transferred to a light receiving position of the light receiving means in the predetermined transfer path, that is, the expected existence position. The presence / absence of a defect is determined based on the received light information of the light receiving unit, and the normal and defective ones of the group of granular materials transferred to the light receiving position are separated into different paths based on the determination. Transported.

【００１１】従って、例えば粒状体群を移送させずに不
良検出と不良物の除去を行うには、装置側を可動できる
ように構成する必要があるのに比べて、粒状体群を受光
手段の受光位置つまり不良検出位置から、不良物を正常
物から異なる経路に分離する不良物除去位置に順次移送
させるようにすることで、装置側を可動させないように
しながら装置各部を合理的に配置して円滑な動作が実現
できる不良物除去装置が得られる。Therefore, for example, in order to detect a defect and remove a defect without transferring the group of particulates, it is necessary to make the apparatus movable so that the group of particulates can be used as a light receiving means. By sequentially transferring defective objects from the light receiving position, that is, the defective detection position, to the defective object removing position that separates the defective object from the normal object to a different path, the respective parts of the apparatus are rationally arranged while keeping the apparatus side from moving. A defective object removing device capable of realizing a smooth operation can be obtained.

【００１２】請求項４では、請求項３において、予定移
送経路に沿って一層状態で横幅方向に広がった状態で移
送されている粒状体群が、その横幅方向の全幅において
照明されるとともに、その横幅方向の全幅を受光範囲と
して前記受光手段にて受光され、その受光情報に基づい
て、粒状体群の横幅方向の全幅における不良物の存否が
判別される。According to a fourth aspect of the present invention, in the third aspect, the granular material group which is transported in a state of being further spread in the lateral direction along the predetermined transport path is illuminated over the entire width in the lateral direction, and Light is received by the light receiving means with the entire width in the width direction as a light receiving range, and the presence or absence of a defective object in the entire width in the width direction of the group of particulates is determined based on the received light information.

【００１３】従って、粒状体群を横幅方向に広がった状
態ではなく、例えば一列状に移送するものに比べて、横
幅方向の全幅において並列的に能率良く、不良を検出し
てその不良物を除去することができ、もって、請求項３
に係る不良物除去装置の好適な手段が得られる。Therefore, the granular material group is not spread in the horizontal width direction, but is efficiently operated in parallel in the entire width in the horizontal width direction, for example, as compared with a case in which the granular material group is transported in a line. Claim 3
Suitable means of the defective object removing device according to the above is obtained.

【００１４】請求項５では、請求項３又は４において、
粒状体群における不良物に対してエアーが吹き付けら
れ、その不良物が正常物の経路から分離されて除去され
る。According to a fifth aspect, in the third or fourth aspect,
Air is blown against the defectives in the group of particulates, and the defectives are separated from the normal path and removed.

【００１５】従って、正常物の経路から不良物を分離さ
せるのに、エアーの吹き付けによって行うので、例えば
出退動作する板等の機械的な手段で直接接触して分離さ
せるのに比べて、速い応答速度で且つソフトタッチに損
傷を与えるおそれもなく良好に分離させることができ、
もって、請求項３又は４に係る不良物除去装置の好適な
手段が得られる。[0015] Therefore, the separation of the defective from the path of the normal is performed by blowing air, which is faster than the direct contact and separation by mechanical means such as a plate that moves in and out. It can be separated well with the response speed and without damaging the soft touch,
Accordingly, a preferable means of the defect removing device according to claim 3 or 4 is obtained.

【００１６】[0016]

【発明の実施の形態】以下、本発明の不良検出装置及び
不良物除去装置の実施形態を、玄米や精米等の米粒群か
らなる粒状体群を検査対象物として流下案内させなが
ら、不良検出及び不良物除去を行う場合について図面に
基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a defect detection device and a defect removal device according to the present invention will be described with reference to a method of detecting defects while guiding down a group of particles, such as brown rice and polished rice, as a test object. The case where the defective object is removed will be described with reference to the drawings.

【００１７】図１〜図３（尚、図３は、不良検出及び不
良物除去の動作説明図であるために、図１及び図２とは
装置構成の配置が異なる箇所がある）に示すように、広
幅の板状のシュータ１が、水平面に対して所定角度（例
えば６０度）に傾斜されて設置され、このシュータ１の
上部側に設けた貯溜タンク７からフィーダ９によって搬
送されて供給された米粒群ｋが、シュータ１の上面を一
層状態で横方向に広がった状態で流下案内されている。
ここで、上記シュータ１は、幅方向全幅に亘って平坦な
案内面に形成された平面シュータである。尚、ここで
は、一層状態で移送させることを目的としているので、
流れ状態により部分的に粒が重なって２層状態等になっ
ても、一層状態の概念に含まれる。As shown in FIGS. 1 to 3 (FIG. 3 is an explanatory diagram of an operation for detecting a defect and removing a defect, there is a place where the arrangement of the apparatus is different from that of FIGS. 1 and 2). A wide plate-shaped shooter 1 is installed at a predetermined angle (for example, 60 degrees) with respect to a horizontal plane, and is conveyed and supplied by a feeder 9 from a storage tank 7 provided on an upper side of the shooter 1. The group of rice grains k is guided to flow down in a state in which the upper surface of the chute 1 is spread in a horizontal direction in a single state.
Here, the shooter 1 is a plane shooter formed on a flat guide surface over the entire width in the width direction. In this case, since the purpose is to transfer the state further,
Even if the particles partially overlap depending on the flow state to form a two-layer state or the like, this is included in the concept of a single layer state.

【００１８】貯溜タンク７には、外部の精米機等から供
給される検査対象物や、外部からの検査対象物を１次選
別処理した後再選別される正常物又は不良物が貯溜され
る。タンク７は下端側ほど先細筒状に形成され、タンク
からフィーダ９上に落下した米粒群ｋのシュータ１への
供給量は、フィーダ９の振動による米粒群ｋの搬送速度
を変化させて調節される。The storage tank 7 stores an inspection object supplied from an external rice milling machine or the like, and a normal or defective object which is subjected to primary sorting of the inspection object from outside and then re-sorted. The tank 7 is formed in a tapered cylindrical shape toward the lower end, and the supply amount of the rice grains k dropped from the tank onto the feeder 9 to the shooter 1 is adjusted by changing the transport speed of the rice grains k by the vibration of the feeder 9. You.

【００１９】シュータ１の下端部から流下する米粒群ｋ
が広幅状態で存在することが予定される長尺状の存在予
定箇所Ｊ（以後、検出位置Ｊと呼ぶ）が、米粒群ｋの流
下経路中に設定され、その検出位置Ｊを米粒群ｋの横幅
方向の全幅を照明する状態で照明する照明光源として蛍
光灯等からなるライン状光源４Ａ，４Ｂと、そのライン
状光源４Ａ，４Ｂからの照明光が上記検出位置Ｊの米粒
群ｋで反射した反射光を受光する反射用ラインセンサ５
Ｂとが設けられている。一方、上記検出位置Ｊを挟ん
で、ライン状光源４Ａ，４Ｂの設置位置とは反対側（図
の右側）に、ライン状光源４Ａ，４Ｂからの照明光が検
出位置Ｊの米粒群ｋを透過した透過光を受光する透過用
ラインセンサ５Ａが設けられている。以上より、ライン
状光源４Ａ，４Ｂにて照明された米粒群ｋからの検出光
を受光する受光手段が、透過用ラインセンサ５Ａと反射
用ラインセンサ５Ｂにて構成される。Rice grains k flowing down from the lower end of shooter 1
Is set in the flow-down path of the rice grain group k, and the detection position J is set to the longest possible location J (hereinafter, referred to as a detection position J) which is expected to exist in a wide state. Linear light sources 4A and 4B composed of fluorescent lamps and the like as illumination light sources for illuminating the entire width in the width direction, and the illumination light from the linear light sources 4A and 4B reflected by the rice grain group k at the detection position J. Reflection line sensor 5 for receiving reflected light
B is provided. On the other hand, the illumination light from the linear light sources 4A and 4B passes through the rice grain group k at the detection position J on the opposite side (right side in the figure) of the detection position J from the installation position of the linear light sources 4A and 4B. There is provided a transmission line sensor 5A for receiving the transmitted light. As described above, the light receiving means for receiving the detection light from the rice grain group k illuminated by the linear light sources 4A and 4B is constituted by the transmission line sensor 5A and the reflection line sensor 5B.

【００２０】ここで、前記ライン状光源４Ａ，４Ｂは、
前記透過用ラインセンサ５Ａの受光方向に対して傾いた
状態で異なる複数の斜め方向から米粒群ｋを照明する２
つのライン状光源４Ａ，４Ｂを備えている。つまり、検
出位置Ｊを斜め下方から照明する下側光源４Ａと、検出
位置Ｊを斜め上方から照明する上側光源４Ｂとが備えら
れ、この両光源４Ａ，４Ｂは、検出位置Ｊに対して夫々
の照明角度を維持する状態でフレーム２２に保持されて
いる。そして、このように検出位置Ｊを照明光の照明角
度を変えて２つの方向から照明しているので、図６に示
すように、米粒ｋが正常な位置から横方向にずれた位置
の米粒ｋ’場合でも、極力均一な状態で良好に照明でき
ることになる。Here, the linear light sources 4A and 4B are
2 illuminate the rice grain group k from a plurality of different oblique directions while being inclined with respect to the light receiving direction of the transmission line sensor 5A.
There are two linear light sources 4A and 4B. That is, a lower light source 4A that illuminates the detection position J from obliquely below and an upper light source 4B that illuminates the detection position J from obliquely above are provided. The two light sources 4A and 4B are respectively provided with respect to the detection position J. It is held by the frame 22 while maintaining the illumination angle. Then, since the detection position J is illuminated from two directions by changing the illumination angle of the illumination light, as shown in FIG. 6, the rice grain k is shifted from the normal position in the horizontal direction. Even in this case, it is possible to satisfactorily illuminate as uniformly as possible.

【００２１】前記ライン状光源４Ａ，４Ｂを設けた側と
同じ側に、前記米粒群ｋにおける正常物（正常米）から
の透過光と同一又は略同一の明るさの光を前記透過用ラ
インセンサ５Ａに向けて反射する透過光用反射板８Ａが
設けられ、前記ライン状光源４Ａ，４Ｂが、この透過光
用反射板８Ａを照明するように配置されている。尚、こ
の透過用光反射板８Ａは、前記光源支持用のフレーム２
２に連設された板部２２ａを折り曲げて、その表面を印
刷等にて白色に形成した白色板からなる。そして、前記
ライン状光源４Ａ，４Ｂと、前記反射用ラインセンサ５
Ｂと、前記透過光用反射板８Ａとが、一方の収納部１３
Ｂに収納されている。On the same side as the side on which the linear light sources 4A and 4B are provided, light having the same or substantially the same brightness as the transmitted light from a normal product (normal rice) in the rice grain group k is transmitted by the transmission line sensor. A reflection plate for transmitted light 8A that reflects toward 5A is provided, and the linear light sources 4A and 4B are arranged to illuminate the reflection plate for transmitted light 8A. The light reflecting plate for transmission 8A is connected to the frame 2 for supporting the light source.
2 is a white plate formed by bending a plate portion 22a provided continuously and forming the surface of the plate portion 22a in white by printing or the like. The line light sources 4A and 4B and the reflection line sensor 5
B and the reflection plate for transmitted light 8 </ b> A
B.

【００２２】又、前記透過用ラインセンサ５Ａを設けた
側と同じ側に、前記米粒群ｋにおける正常物（正常米）
からの反射光と同一又は略同一の明るさの光を前記反射
用ラインセンサ５Ｂに向けて反射する反射光用反射板８
Ｂが設けられている。そして、前記透過用ラインセンサ
５Ａと、前記反射光用反射板８Ｂとが、他方の収納部１
３Ａに収納されている。尚、両収納部１３Ａ，１３Ｂは
側板が共通の一体の箱体に形成されている。On the same side as the side where the transmission line sensor 5A is provided, a normal product (normal rice) in the rice grain group k is provided.
Light reflection plate 8 for reflecting light having the same or substantially the same brightness as the reflected light from the light source toward the reflection line sensor 5B.
B is provided. The transmission line sensor 5A and the reflected light reflection plate 8B are connected to the other storage unit 1.
3A. In addition, both the storage portions 13A and 13B are formed as an integral box body having a common side plate.

【００２３】前記両収納部１３Ａ，１３Ｂ夫々は、前記
検出位置Ｊに面する側に板状の透明ガラスからなる窓部
１４Ａ，１４Ｂを備えている。つまり、ライン状光源４
Ａ，４Ｂと、透過用ラインセンサ５Ａ及び反射用ライン
センサ５Ｂとが、検出位置Ｊを挟んで対向配置され且つ
検出位置Ｊに面する側に光透明用の窓部１４Ａ，１４Ｂ
を備えた一対の収納部１３Ａ，１３Ｂに収納されてい
る。そして、前記反射用反射板８Ｂは、米粒と同じ反射
率の領域８ａを上記ライン状光源４Ａ，４Ｂにて照明さ
れた米粒群ｋの全幅に対応して長手状に形成し、且つそ
の長手状の領域８ａの両側に黒色の領域８ｂを形成する
ように、前記窓部１４Ａの内面に印刷等による塗膜とし
て形成されている。Each of the storage sections 13A and 13B has a window 14A and 14B made of a plate-shaped transparent glass on the side facing the detection position J. That is, the linear light source 4
A, 4B, and a transmission line sensor 5A and a reflection line sensor 5B are disposed to face each other with the detection position J interposed therebetween, and windows 14A, 14B for optical transparency are provided on the side facing the detection position J.
Are housed in a pair of storage sections 13A and 13B provided with. The reflecting plate 8B has a region 8a having the same reflectance as the rice grains in a longitudinal shape corresponding to the entire width of the rice grain group k illuminated by the linear light sources 4A and 4B. Is formed as a coating film by printing or the like on the inner surface of the window portion 14A so as to form a black region 8b on both sides of the region 8a.

【００２４】又、上記一対の収納部１３Ａ，１３Ｂの両
窓部１４Ａ，１４Ｂは、窓面方向に沿う横方向視（図１
０の紙面垂直方向）において、下方側ほど互いの間隔が
狭くなる状態（Ｖ字形）に配置されている。そして、上
記各窓部１４Ａ，１４Ｂに設当する清掃部材（ワイパ
ー）をその窓面方向に沿って移動させて上記各窓部１４
Ａ，１４Ｂの外面を清掃する清掃手段Ｃが設けられてい
る。Further, both windows 14A, 14B of the pair of storage sections 13A, 13B are viewed in a lateral direction along the window surface direction (FIG. 1).
0 (in the direction perpendicular to the plane of the paper), the gaps between them are narrower toward the lower side (V-shape). Then, the cleaning member (wiper) provided to each of the windows 14A and 14B is moved along the direction of the window surface, and the respective windows 14A and 14B are moved.
A cleaning means C for cleaning the outer surfaces of A and 14B is provided.

【００２５】次に、上記清掃手段Ｃについて図９〜図１
２にて説明する。装置本体への装着状態（図１０）にお
いて前記各窓部１４Ａ，１４Ｂの表面に接当する接当面
２３ａを備えた清掃部材としてのワイパー部材２３が、
両窓部１４Ａ，１４Ｂの間隙形状に合わせたＶ字配置で
支持板２４に固定されている。ここで、ワイパー部材２
３はゴム材等からなり、接当面２３ａはブレード状に形
成されている。そして、この支持板２４が、上下方向向
きのアーム２５の下端部に取り付けられるとともに、ア
ーム２５の上部側に取り付けた円筒状の上部部分２５Ａ
が、横向き姿勢のロッドレスシリンダ２６に摺動自在な
状態で外嵌され、且つ、シリンダ２６内のピストン２９
に備えた磁石３０に磁気力で係合している。Next, the cleaning means C will be described with reference to FIGS.
This will be described in Section 2. A wiper member 23 as a cleaning member having a contact surface 23a that contacts the surface of each of the windows 14A and 14B in a state of being attached to the apparatus main body (FIG. 10).
The windows 14A, 14B are fixed to the support plate 24 in a V-shaped arrangement corresponding to the gap between the windows. Here, the wiper member 2
Reference numeral 3 is made of a rubber material or the like, and the contact surface 23a is formed in a blade shape. The support plate 24 is attached to the lower end of the arm 25 which is oriented vertically, and the cylindrical upper portion 25A attached to the upper side of the arm 25.
Is slidably fitted on the rodless cylinder 26 in the lateral position, and the piston 29 in the cylinder 26 is
Are magnetically engaged with the magnet 30 provided in the above.

【００２６】上記ロッドレスシリンダ２６の各端部に
は、後述のエアタンク１５から供給されるエアーを電磁
弁２６Ａ（図４参照）によって断続して供給するエアー
供給口２６Ｂが設けられている。そして、その各エアー
供給口２６Ｂから交互にシリンダ内にエアーを供給する
と、ピストン２９がシリンダ２６の両端部間で往復移動
し、このピストン２９に連動して上部部分２５Ａが移動
してワイパー部材２３が両窓部１４Ａ，１４Ｂの表面を
清掃するように構成されている。尚、シリンダ軸芯方向
の左右の各端部側には、上部部分２５Ａが接当したとき
にオン作動するリミットスイッチＬＳ１，ＬＳ２が設け
られ、この各リミットスイッチＬＳ１，ＬＳ２の出力信
号により、ワイパー部材２３がシリンダ軸芯方向の各端
部に達したことが検出されるようになっている。At each end of the rodless cylinder 26, there is provided an air supply port 26B for intermittently supplying air supplied from an air tank 15 described later by a solenoid valve 26A (see FIG. 4). When air is alternately supplied into the cylinder from each of the air supply ports 26B, the piston 29 reciprocates between both ends of the cylinder 26, and the upper portion 25A moves in conjunction with the piston 29 to move the wiper member 23. Are configured to clean the surfaces of both windows 14A and 14B. Note that limit switches LS1 and LS2 that are turned on when the upper portion 25A comes into contact with the left and right end portions in the cylinder axis direction are provided. The output signals of the limit switches LS1 and LS2 cause the wipers to output signals. It is detected that the member 23 has reached each end in the cylinder axis direction.

【００２７】左右一対設けた縦長部材３１が機枠に設け
た左右一対の箱状のガイド材４０に沿って上方側から挿
入され、その底部位置で受け止められるようになってい
る。そして、上記各縦長部材３１の外面側（ガイド材４
０側）に取り付けれて下方に延びる左右の板材３１Ａに
よって、前記ロッドレスシリンダ２６の長手方向の両端
部が保持されている。一方、上記各縦長部材３１の内面
側に取り付けれた左右の板材２８に、前記検出位置Ｊを
照明する第３の照明光源４Ｃを保持する光源保持枠２７
が連結されている。A pair of left and right vertically elongated members 31 are inserted from above along a pair of left and right box-shaped guide members 40 provided on the machine frame, and are received at the bottom thereof. Then, the outer surface side of each of the vertically long members 31 (the guide member 4
0), and both ends in the longitudinal direction of the rodless cylinder 26 are held by left and right plate members 31A extending downward. On the other hand, a light source holding frame 27 for holding a third illumination light source 4C for illuminating the detection position J is provided on left and right plate members 28 attached to the inner surface side of each of the vertically long members 31.
Are connected.

【００２８】以上より、前記ワイパー部材２３を前記窓
面方向に沿って横方向に移動させるように駆動する駆動
手段が、前記ロッドレスシリンダ２６によって構成され
るとともに、前記ワイパー部材２３と、前記ロッドレス
シリンダ２６とが、ユニット体Ｕに構成され、さらに、
そのユニット体Ｕに、前記検査箇所Ｊを照明するための
照明用の光源４Ｃが組み込まれている。As described above, the driving means for driving the wiper member 23 to move in the lateral direction along the window surface direction is constituted by the rodless cylinder 26, and the wiper member 23 and the rod And the less cylinder 26 is configured as a unit body U.
An illumination light source 4C for illuminating the inspection location J is incorporated in the unit body U.

【００２９】又、上記左右の縦長部材３１が、断面Ｌ型
の横板部材３２によって連結されるとともに、その横板
部材３２を下側に抑えつけるノブ３３の下端部が、本体
フレーム側に付設したＬ型部材４１に固着したナット４
２に螺合して、装置の運転時等において、上記ユニット
体Ｕが上下方向にがたつく等の不都合を防止している。
一方、メンテナンス時等においては、上記ノブ３３を回
してナット４２への螺合状態を解除して、ユニット体Ｕ
を上方側に引き出すことができる。つまり、上記ユニッ
ト体Ｕが装置本体に対して上下方向に挿脱自在に構成さ
れている。The left and right vertically long members 31 are connected by a horizontal plate member 32 having an L-shaped cross section, and a lower end of a knob 33 for holding the horizontal plate member 32 downward is provided on the body frame side. Nut 4 fixed to L-shaped member 41
2 to prevent inconvenience such as the unit body U rattling in the vertical direction during operation of the apparatus.
On the other hand, at the time of maintenance or the like, the screwed state to the nut 42 is released by turning the knob 33 and the unit body U
Can be pulled out upward. That is, the unit body U is configured to be freely inserted into and removed from the apparatus main body in the vertical direction.

【００３０】図５に示すように、上記両ラインセンサ５
Ａ，５Ｂは、米粒ｋの大きさよりも小さい範囲ｐ（例え
ば米粒ｋの大きさの１０分の１程度）を夫々の受光対象
範囲として各別に受光情報が取出し可能な複数個の受光
部５ａを、前記検出位置Ｊの長手方向に沿って並置させ
て、米粒群ｋの横幅方向の全幅を受光範囲とするように
構成されている。具体的には、複数個の受光部５ａとし
ての受光素子が直線状に並置されたモノクロタイプのＣ
ＣＤセンサ５０と、検出位置Ｊでの米粒群ｋの像を上記
ＣＣＤセンサの各受光素子上に結像させる光学系５１と
から構成されている。そして、両ラインセンサ５Ａ，５
Ｂは、前記長尺状の検出位置Ｊの一端側から他端側に向
けて、例えば図３において、長尺状の検出位置Ｊの左端
側から右端側に向けて、各受光部５ａから各受光情報が
順次取り出される。As shown in FIG. 5, the two line sensors 5
A and 5B are provided with a plurality of light receiving units 5a from which light receiving information can be separately taken out by setting a range p (for example, about 1/10 of the size of rice grain k) smaller than the size of rice grain k as each light receiving target range. The detection positions J are juxtaposed along the longitudinal direction, and the entire width of the rice grain group k in the width direction is set as the light receiving range. Specifically, a monochrome type C in which light receiving elements as a plurality of light receiving portions 5a are arranged in a straight line.
It comprises a CD sensor 50 and an optical system 51 for forming an image of the rice grain group k at the detection position J on each light receiving element of the CCD sensor. And both line sensors 5A, 5
B, from one end of the long detection position J to the other end, for example, in FIG. 3, from the left end to the right end of the long detection position J, from each light receiving portion 5a Light reception information is sequentially extracted.

【００３１】上記両ラインセンサ５Ａ，５Ｂの検出位置
Ｊから流下方向下流側に、上記検出位置Ｊでの受光情報
に基づいて不良と判定された米粒ｋや異物等に対してエ
アーを吹き付けて正常な米粒ｋの流れ方向から横方向に
分離させるためのエアー吹き付け装置６が設けられてい
る。このエアー吹き付け装置６は、不良物にエアーを吹
き付けて正常物と異なる経路に分離させるための噴射ノ
ズル６ａの複数個を、粒状体群の全幅を所定幅で複数個
の区画に分割形成した各区画に対応する状態で並置させ
ている。そして、後述の判別手段１００にて判別された
不良物が存在する区画の噴射ノズル６ａが作動される。Normally, air is blown downstream from the detection positions J of the two line sensors 5A and 5B to rice grains k, foreign matter, etc., which are determined to be defective based on the light reception information at the detection positions J. An air blowing device 6 for separating the rice grains k in the horizontal direction from the flow direction is provided. The air blowing device 6 includes a plurality of injection nozzles 6a for blowing defective air to separate the defective nozzles into paths different from the normal ones by dividing the entire width of the granular body group into a plurality of sections with a predetermined width. They are juxtaposed so as to correspond to the sections. Then, the ejection nozzle 6a of the section where the defective object determined by the determination means 100 described later exists is operated.

【００３２】以上より、シュータ１が、米粒群ｋを予定
移送経路（シュータ上の米粒群ｋの流れ経路及びシュー
タ下端から落下する米粒群ｋの落下経路）に沿って一層
状態で横幅方向に広がった状態で移送し、且つその予定
移送経路における前記両ラインセンサ５Ａ，５Ｂの受光
位置に移送する移送手段Ｈを構成すると共に、その移送
手段Ｈが、上記エアー吹き付け装置６及び後述の制御装
置１０をも利用して、その判別手段１００の判別情報に
基づいて、前記受光位置Ｊに移送した米粒群ｋのうちの
正常物と不良物とを異なる経路に分離して移送するよう
に、不良物にエアーを吹き付けて正常物の経路から分離
させるように構成される。As described above, the shooter 1 spreads the rice grain group k in the lateral direction in a single layer along the predetermined transfer path (the flow path of the rice grain group k on the chute and the falling path of the rice grain group k falling from the lower end of the chute). Transport means H for transporting in a state in which the line sensors 5A and 5B are received on the predetermined transport path, and the transport means H is provided with the air blowing device 6 and a control device 10 to be described later. Is also used, based on the discrimination information of the discriminating means 100, so that the normal and defective ones of the rice grain group k transferred to the light receiving position J are separated and transferred to different paths. Is configured to be blown from the path of the normal object by blowing air.

【００３３】そして、シュータ１の下端部から所定経路
に沿って流下する米粒群ｋのうちで、前記噴射ノズル６
ａからのエアーの吹き付けを受けずにそのまま進行して
くる正常な米粒ｋを回収する良米用の受口部２Ｂと、エ
アーの吹き付けを受けて正常な米粒ｋの流れから横方向
に分離した着色米や胴割れ米等の不良米又は石やガラス
片等の異物を回収する不良物用の受口部３Ｂとが設けら
れ、良米用の受口部２Ｂが横幅方向に細長い筒状に形成
され、その良米用の受口部２Ｂの周囲を囲むように、不
良物用の受口部３Ｂが形成されている。尚、良米用の受
口部２Ｂにて回収された米粒ｋ、及び、不良物用の受口
部３Ｂにて回収された不良物は、再選別等のために、本
検査装置のタンク７へ又は他の検査装置に搬送される。Then, of the rice grains k flowing down from the lower end of the chute 1 along a predetermined path, the spray nozzle 6
The receptacle 2B for good rice, which collects normal rice grains k that proceed as they are without being blown by air from a, and is separated from the flow of normal rice grains k by blowing air. A receiving portion 3B for collecting defective rice such as colored rice or cracked rice or a foreign matter such as stone or glass fragments is provided, and a receiving portion 2B for good rice is formed in a tubular shape elongated in the width direction. A defective receiving port 3B is formed so as to surround the good rice receiving port 2B. Note that the rice grains k collected at the good rice receiving portion 2B and the defectives collected at the defective product receiving portion 3B are stored in the tank 7 of the inspection apparatus for re-sorting or the like. Or to another inspection device.

【００３４】図１に示すように、脚部Ｆ０を備えた底板
Ｆ１上に立設された縦枠Ｆ２，Ｆ３，Ｆ４が、横枠Ｆ
５，Ｆ６，Ｆ７によって連結されて機枠が構成されてい
る。表側の縦枠Ｆ４の上部斜め部分に、情報の表示及び
入力用の操作卓２１が設置され、前記フィーダ９に対す
る振動発生器９Ａが横枠Ｆ５上に設置され、前記エアー
吹き付け装置６及び前記ロッドレスシリンダ２６に対す
るエアー供給用のエアタンク１５が底板Ｆ１上に設置さ
れている。又、箱状の収納部１３Ａ，１３Ｂが前部側で
縦枠Ｆ４に後部側で縦枠Ｆ３に支持され、シュート１が
上部側で横枠Ｆ６に下部側で収納部１３Ｂに支持されて
いる。装置外面を覆うカバーＫが機枠に取り付けられて
いる。As shown in FIG. 1, vertical frames F2, F3 and F4, which are erected on a bottom plate F1 provided with legs F0, are
5, F6, and F7 are linked to form a machine frame. An operation console 21 for displaying and inputting information is installed in the upper oblique portion of the front vertical frame F4, a vibration generator 9A for the feeder 9 is installed on the horizontal frame F5, the air blowing device 6 and the rod An air tank 15 for supplying air to the less cylinder 26 is provided on the bottom plate F1. The box-shaped storage portions 13A and 13B are supported by the vertical frame F4 on the front side and the vertical frame F3 on the rear side, and the chute 1 is supported by the horizontal frame F6 on the upper side and the storage portion 13B on the lower side. . A cover K that covers the outer surface of the device is attached to the machine frame.

【００３５】制御構成を説明すると、図４に示すよう
に、マイクロコンピュータ利用の制御装置１０が設けら
れ、この制御装置１０に、両ラインセンサ５Ａ，５Ｂか
らの各画像信号と、前記操作卓２１からの操作情報と、
前記左右のリミットスイッチＬＳ１，ＬＳ２の各検出信
号とが入力されている。一方、制御装置１０からは、前
記ライン状光源４Ａ，４Ｂ，４Ｃを点灯させる点灯回路
１９に対する駆動信号と、各噴射ノズル６ａへの各エア
ー供給をオンオフする複数個の電磁弁１１に対する駆動
信号と、前記フィーダ用振動発生器９Ａに対する駆動信
号と、前記ロッドレスシリンダ２６へのエアー流通をオ
ンオフする電磁弁２６Ａに対する駆動信号とが出力され
ている。The control structure will be described. As shown in FIG. 4, a control device 10 using a microcomputer is provided. The control device 10 includes the image signals from both line sensors 5A and 5B and the console 21. Operation information from
The respective detection signals of the left and right limit switches LS1 and LS2 are input. On the other hand, a drive signal for the lighting circuit 19 for lighting the linear light sources 4A, 4B, and 4C, and a drive signal for a plurality of electromagnetic valves 11 for turning on and off each air supply to each injection nozzle 6a are transmitted from the control device 10. A drive signal for the feeder vibration generator 9A and a drive signal for an electromagnetic valve 26A for turning on and off the air flow to the rodless cylinder 26 are output.

【００３６】そして、上記制御装置１０を利用して、前
記透過用及び反射用ラインセンサ５Ａ，５Ｂの受光情報
に基づいて、米粒群ｋにおける不良物の存否を判別する
判別手段１００が構成される。そして、図７及び図８に
示すように、この判別手段１００は、米粒群ｋからの透
過光及び前記透過光用反射板８Ａからの反射光を受光す
る透過用ラインセンサ５Ａの受光情報に基づいて、その
受光量が米粒群ｋにおける正常物からの透過光に対する
適正光量範囲から外れたときに、不良物の存在を判別
し、又、米粒群ｋからの反射光及び前記反射光用反射板
８Ｂからの反射光を受光する前記反射用ラインセンサ５
Ｂの受光情報に基づいて、その受光量が米粒群ｋにおけ
る正常物からの反射光に対する適正光量範囲から外れた
ときに、不良物の存在を判別する。Using the control device 10, a judging means 100 for judging the presence or absence of a defective in the rice grain group k based on the light receiving information of the transmitting and reflecting line sensors 5A and 5B. . As shown in FIGS. 7 and 8, the discriminating means 100 is based on the light reception information of the transmission line sensor 5A that receives the transmitted light from the rice grain group k and the reflected light from the transmitted light reflecting plate 8A. When the amount of received light is out of the appropriate light amount range for transmitted light from a normal object in the rice grain group k, the presence of a defective is determined, and the reflected light from the rice grain group k and the reflection plate for the reflected light are determined. 8B for receiving the reflected light from the reflection line sensor 5B
Based on the light receiving information of B, when the light receiving amount is out of the appropriate light amount range for the reflected light from the normal object in the rice grain group k, the presence of the defective is determined.

【００３７】次に、具体的に、前記検出位置Ｊにおける
透過光用及び反射光用の各ラインセンサ５Ａ，５Ｂの受
光情報に基づいて、米粒群ｋにおける各米粒の良否又は
米粒群ｋ内に混入した異物の存否を判別する構成につい
て説明する。Next, based on the light reception information of each of the line sensors 5A and 5B for the transmitted light and the reflected light at the detection position J, the quality of each rice grain in the rice grain group k or the rice grain group k is determined. A configuration for determining the presence or absence of a mixed foreign substance will be described.

【００３８】透過光の場合は、図７の透過光用ラインセ
ンサ５Ａの出力波形に示すように、各受光部５ａの受光
量に対応する出力電圧が米粒群ｋに対する適正光量範囲
ΔＥｔ内にある場合に正常な米粒の存在を判別し、設定
適正範囲ΔＥｔを外れた場合に前記米粒の不良又は前記
異物の存在を判別する。ここで、透過光用の適正光量範
囲ΔＥｔは、正常米粒からの標準的な透過光に対する出
力電圧レベルｅ０を挟んで上下所定幅の範囲に設定され
る。In the case of transmitted light, as shown in the output waveform of the transmitted light line sensor 5A in FIG. 7, the output voltage corresponding to the amount of light received by each light receiving portion 5a is within the appropriate light amount range ΔEt for the rice grain group k. In this case, the presence of a normal rice grain is determined, and when the rice grain is out of the set appropriate range ΔEt, the defect of the rice grain or the presence of the foreign matter is determined. Here, the appropriate light amount range ΔEt for transmitted light is set to a range of a predetermined width above and below the output voltage level e0 for standard transmitted light from normal rice grains.

【００３９】そして、適正光量範囲ΔＥｔよりも小さい
場合に、正常な米粒よりも透過率が小さい不良の米粒や
異物等（例えば、黒色の石粒）の存在を判別し、適正光
量範囲ΔＥｔよりも大きい場合に、正常な米粒ｋよりも
透過率が大きい明側の不良の米粒ｋ又は前記異物の存在
を判別する。この明側の不良の米粒ｋ又は異物の例とし
ては、薄い色付の透明なガラス片等が正常な米粒ｋより
も透過率が大きい異物になり、又、正常な米粒ｋを「も
ち米」としたときの「うるち米」が正常な米粒ｋよりも
透過率が大きい不良の米粒ｋになる。When the light amount is smaller than the proper light amount range ΔEt, the presence of defective rice grains, foreign matter, etc. (for example, black stones) having a transmittance lower than that of normal rice particles is determined. If it is larger, it is determined whether there is a light-side defective rice grain k having a higher transmittance than a normal rice grain k or the presence of the foreign matter. As an example of the defective rice grain k or foreign matter on the light side, a thin colored transparent glass piece becomes a foreign matter having a transmittance higher than that of the normal rice grain k, and the normal rice grain k is "sticky rice". In this case, the "rice glutinous rice" becomes a defective rice grain k having a higher transmittance than the normal rice grain k.

【００４０】図７には、受光部５ａの出力電圧（受光
量）が、米粒ｋに一部着色部分が存在する位置や黒色の
石等の位置（ｅ１で示す）、及び、胴割れ部分が存在す
る位置（ｅ２で示す）では、上記適正光量範囲ΔＥｔよ
りも下側に位置し、又、正常な米粒よりも透過率が大き
い異物等が存在する場合には、位置ｅ４に示すように適
正光量範囲ΔＥｔよりも上側に位置している状態を例示
している。FIG. 7 shows that the output voltage (received light amount) of the light receiving portion 5a shows the position where a part of the rice grain k has a colored portion, the position of a black stone or the like (indicated by e1), and the broken portion of the body. At the existing position (indicated by e2), if there is a foreign substance or the like which is located below the appropriate light amount range ΔEt and has a transmittance higher than that of normal rice grains, the appropriate position is determined as indicated by the position e4. The state where it is located above the light amount range ΔEt is illustrated.

【００４１】一方、反射光の場合には、図８の反射光用
のラインセンサ５Ｂの出力波形に示すように、各受光部
５ａの受光量に対応する出力電圧が適正光量範囲ΔＥｈ
内にある場合に正常な米粒の存在を判別し、適正光量範
囲ΔＥｈを外れた場合に前記米粒の不良又は前記異物の
存在を判別する。ここで、反射光用の適正光量範囲ΔＥ
ｈは、正常米粒からの標準的な反射光に対する出力電圧
レベルｅ０’を挟んで上下所定幅の範囲に設定される。On the other hand, in the case of the reflected light, as shown in the output waveform of the reflected light line sensor 5B in FIG.
If it is within the range, the presence of normal rice grains is determined, and if it is out of the appropriate light amount range ΔEh, the defect of the rice grains or the presence of the foreign matter is determined. Here, the appropriate light amount range ΔE for reflected light
h is set in a range of a predetermined upper and lower width with respect to an output voltage level e0 ′ for standard reflected light from normal rice grains.

【００４２】図８には、米粒ｋに一部着色部分が存在す
る位置（ｅ１’で示す）や胴割れ部分が存在する位置
（ｅ２’で示す）では、上記適正光量範囲ΔＥｈから下
側に外れている状態を例示し、又、ガラス片等の異物が
存在する場合には、異物からの強い直接反射光によって
位置ｅ３’に示すように適正光量範囲ΔＥｈから上側に
外れている状態を例示している。又、図示しないが、黒
色の石等では、反射率が非常に小さいので、波形におい
て適正光量範囲ΔＥｈから下側に大きく外れることにな
る。FIG. 8 shows that, at a position where a part of the rice grain k has a colored portion (indicated by e1 ') and a position where a cracked portion exists (indicated by e2'), the rice grain k is below the appropriate light amount range ΔEh. Illustrates a state in which the light is out of the proper light amount range ΔEh as shown at a position e3 ′ by strong direct reflected light from the foreign matter when a foreign matter such as a glass piece is present. doing. Although not shown, the reflectance of a black stone or the like is very small, so that the waveform deviates greatly from the appropriate light amount range ΔEh downward.

【００４３】そして、前記制御装置１０は、上記不良の
判別情報に基づいて、前記両ラインセンサ５Ａ，５Ｂの
検出位置Ｊに移送した米粒群ｋのうちで、米粒の不良又
は異物の存在が判別された場合には、検出位置Ｊから前
記噴射ノズル６ａによるエアー噴射位置までの移送時間
が経過するに伴って、流下している不良の米粒又は異物
に対して、その位置に対応する区画の各噴射ノズル６ａ
からエアーを吹き付けて正常な米粒の経路から分離させ
る。Then, the control device 10 determines, based on the defect determination information, a defective rice grain or the presence of foreign matter among the rice grain group k transferred to the detection positions J of the two line sensors 5A and 5B. When the transfer time from the detection position J to the air injection position by the injection nozzle 6a elapses, the defective rice grains or foreign substances flowing down are divided into sections corresponding to the position. Injection nozzle 6a
Air from the rice to separate it from the path of normal rice grains.

【００４４】〔別実施形態〕上記実施例では、受光手段
として、透過光及び反射光用の各ラインセンサ５Ａ，５
Ｂを用いたが、透過光又は反射光用のいずれかのライン
センサ５Ａ，５Ｂで受光手段を構成してもよい。尚、ラ
インセンサも、モノクロタイプのＣＣＤラインセンサ以
外に、撮像管式のテレビカメラでもよい。又、モノクロ
タイプではなく、カラータイプのＣＣＤセンサにて構成
して、例えば、色情報Ｒ，Ｇ，Ｂ毎の受光量から不良米
や異物の存否をさらに精度良く判別してもよい。[Alternative Embodiment] In the above embodiment, the line sensors 5A and 5A for transmitted light and reflected light are used as light receiving means.
Although B is used, the light receiving unit may be constituted by any of the line sensors 5A and 5B for transmitted light or reflected light. The line sensor may be an image pickup tube type television camera other than the monochrome type CCD line sensor. Instead of a monochrome type CCD sensor, a color type CCD sensor may be used, and for example, the presence or absence of defective rice or foreign matter may be more accurately determined from the amount of light received for each of the color information R, G, and B.

【００４５】上記実施例では、清掃部材（ワイパー部材
２３）を、ブレード付きのゴム材にて構成したが、これ
に限らず、例えば、円柱状のスポンジ材等でもよい。In the above embodiment, the cleaning member (wiper member 23) is made of a rubber material with a blade. However, the present invention is not limited to this. For example, a columnar sponge material may be used.

【００４６】上記実施例では、駆動手段を、エアー式の
ロッドレスシリンダ２６にて構成したが、これに限るも
のではなく、例えば、リンク機構を介して清掃部材（ワ
イパー部材２３）を移動させる油圧シリンダや電動モー
タ等でもよい。In the above embodiment, the driving means is constituted by the pneumatic rodless cylinder 26. However, the invention is not limited to this. For example, a hydraulic pressure for moving the cleaning member (wiper member 23) via a link mechanism is used. A cylinder or an electric motor may be used.

【００４７】上記実施例では、清掃部材（ワイパー部材
２３）と駆動手段（ロッドレスシリンダ２６）からなる
ユニット体Ｕを装置本体に対して上下方向に挿脱自在に
構成する手段として、本体側の箱状のガイド材４０に対
して、ユニット側の縦長部材３１を挿入させるようにし
たが、これに限るものではない。In the above embodiment, a unit U comprising a cleaning member (wiper member 23) and a driving means (rodless cylinder 26) is configured to be vertically insertable into and removable from the apparatus main body. Although the unit-side vertically long member 31 is inserted into the box-shaped guide member 40, the present invention is not limited to this.

【００４８】上記実施例では、移送手段Ｈが、粒状体群
を予定移送経路に沿って一層状態で横幅方向に広がった
状態で移送するように構成し、これに合わせて、照明手
段４Ａ，４Ｂが、粒状体群の横幅方向の全幅を照明する
ように構成し、受光手段５Ａ，５Ｂが、前記粒状体群の
横幅方向の全幅を受光範囲とするように構成したが、こ
れに限るものではない。例えば粒状体群を一列状態で移
送させ、これに合わせて、照明手段を単一のランプ等に
て構成し、受光手段を、例えばフォトセンサ等の単一の
受光センサで構成するようにしてもよい。In the above-described embodiment, the transfer means H is configured to transfer the group of granular materials along the predetermined transfer path in a state of being spread in the horizontal width direction in a single layer, and accordingly, the illuminating means 4A, 4B. Are configured to illuminate the entire width of the granular material group in the horizontal width direction, and the light receiving means 5A and 5B are configured to set the entire width of the granular material group in the horizontal width direction to be the light receiving range. However, the present invention is not limited to this. Absent. For example, the group of granular materials may be transported in a line, and accordingly, the illumination means may be configured by a single lamp or the like, and the light receiving means may be configured by a single light receiving sensor such as a photo sensor. Good.

【００４９】又、上記実施例では、移送手段Ｈが、不良
物に対してエアーを吹き付けて、正常物と異なる経路に
分離させるようにしたが、これに限るものではなく、例
えば不良物をエアーで吸引して分離させるようにしても
よい。Further, in the above embodiment, the transfer means H blows air to the defective product to separate the defective product into a different path from the normal product. However, the present invention is not limited to this. May be separated by suction.

【００５０】上記実施例では、検査対象物としての粒状
体群が玄米等の米粒群ｋである場合について例示した
が、これに限るものではなく、例えば、プラスチック粒
等における不良物や異物の存否を検査する場合にも適用
できる。In the above-described embodiment, the case where the granular material group as the inspection object is the rice particle group k such as brown rice is exemplified. However, the present invention is not limited to this case. Can also be applied to the inspection of

【図面の簡単な説明】[Brief description of the drawings]

【図１】不良物検出・除去装置の全体側面図FIG. 1 is an overall side view of a defect detection / removal device.

【図２】同要部側面図FIG. 2 is a side view of the main part.

【図３】同要部斜視図FIG. 3 is a perspective view of the main part.

【図４】制御構成のブロック図FIG. 4 is a block diagram of a control configuration.

【図５】ラインセンサの受光範囲を示す図FIG. 5 is a diagram showing a light receiving range of a line sensor.

【図６】複数の照明光源による作用を説明するための側
面図FIG. 6 is a side view for explaining an operation by a plurality of illumination light sources.

【図７】透過光用ラインセンサの出力波形図FIG. 7 is an output waveform diagram of a transmitted light line sensor.

【図８】反射光用ラインセンサの出力波形図FIG. 8 is an output waveform diagram of a reflected light line sensor.

【図９】清掃部材とその駆動手段を示す要部平面図FIG. 9 is a plan view of a main part showing a cleaning member and its driving means.

【図１０】清掃部材とその駆動手段を示す側面断面図FIG. 10 is a side sectional view showing a cleaning member and its driving means.

【図１１】清掃部材とその駆動手段を示す正面図FIG. 11 is a front view showing a cleaning member and its driving means.

【図１２】清掃部材とその駆動手段の上方側への挿脱動
作を示す側面図FIG. 12 is a side view showing the operation of inserting and removing the cleaning member and its driving means from above.

【符号の説明】[Explanation of symbols]

４Ａ，４Ｂ 照明手段 ４Ｃ 光源 ５Ａ，５Ｂ 受光手段 １４Ａ，１４Ｂ 窓部 １５Ａ，１５Ｂ 収納部 ２３ 清掃部材 ２３ａ 接当面 ２６ 駆動手段 １００ 判別手段 Ｃ 清掃手段 Ｈ 移送手段 Ｕ ユニット体 4A, 4B Illumination unit 4C Light source 5A, 5B Light receiving unit 14A, 14B Window 15A, 15B Storage unit 23 Cleaning member 23a Contact surface 26 Driving unit 100 Discriminating unit C Cleaning unit H Transfer unit U unit body

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 粒状体群を検査対象物として、その検査
対象物の存在予定箇所を照明する照明手段と、前記照明
手段にて照明された前記検査対象物からの検出光を受光
する受光手段とが、前記存在予定箇所を挟んで対向配置
され且つ前記存在予定箇所に面する側に光透過用の窓部
を備えた一対の収納部に収納され、 前記各窓部に接当する清掃部材をその窓面方向に沿って
移動させて前記各窓部の外面を清掃する清掃手段と、 前記受光手段の受光情報に基づいて、前記粒状体群にお
ける不良物の存否を判別する判別手段とが設けられた不
良検出装置であって、 前記両窓部が、前記窓面方向に沿う横方向視において、
下方側ほど互いの間隔が狭くなる状態に配置され、 装置本体への装着状態において前記各窓部に接当する接
当面を備えた前記清掃部材と、その清掃部材を前記窓面
方向に沿って横方向に移動させるように駆動する駆動手
段とがユニット体に構成され、且つ、そのユニット体が
装置本体に対して上下方向に挿脱自在に構成されている
不良検出装置。An illumination unit configured to illuminate a portion where the inspection object is expected to be located with the group of granular objects as an inspection object; and a light receiving unit receiving light detected by the illumination object from the inspection object. Are housed in a pair of storage sections which are arranged to face each other with the expected existence place therebetween and have a window for light transmission on the side facing the expected existence place, and a cleaning member which comes into contact with each of the windows. Cleaning means for moving an outer surface of each of the windows by moving along the direction of the window surface, and determining means for determining the presence or absence of a defective in the granular material group based on light receiving information of the light receiving means. It is a defect detection device provided, wherein the both window portions, when viewed in a lateral direction along the window surface direction,
The cleaning member provided with a contact surface that comes into contact with each of the windows when the device is mounted on the apparatus main body, and the cleaning member is disposed along the window surface direction. A defect detection device in which a driving means for driving to move in a lateral direction is formed in a unit body, and the unit body is configured to be vertically insertable / removable with respect to the apparatus main body. 【請求項２】 前記ユニット体に、前記存在予定箇所を
照明する照明用の光源が組み込まれている請求項１記載
の不良検出装置。2. The defect detecting device according to claim 1, wherein an illumination light source for illuminating the expected location is incorporated in the unit body. 【請求項３】 請求項１又は２記載の不良検出装置を備
えた不良物除去装置であって、 前記粒状体群を予定移送経路に沿って移送する移送手段
が設けられ、 前記移送手段は、前記粒状体群を前記予定移送経路にお
ける前記受光手段の受光位置に移送するとともに、前記
判別手段の判別情報に基づいて、前記受光位置に移送し
た前記粒状体群のうちの正常物と不良物とを異なる経路
に分離して移送するように構成されている不良物除去装
置。3. A defect removing device comprising the defect detection device according to claim 1 or 2, wherein a transfer means for transferring the group of particulates along a predetermined transfer path is provided. Transferring the particulate group to the light receiving position of the light receiving unit on the scheduled transfer path, and based on the discrimination information of the discriminating unit, a normal object and a defective one of the particulate group transferred to the light receiving position. The defect removing device is configured to separate and transfer the products to different paths. 【請求項４】 前記移送手段は、前記粒状体群を一層状
態で横幅方向に広がった状態で移送するように構成さ
れ、 前記照明手段は、前記粒状体群の横幅方向の全幅を照明
するように構成され、 前記受光手段は、前記粒状体群の横幅方向の全幅を受光
範囲とするように構成されている請求項３記載の不良物
除去装置。4. The apparatus according to claim 1, wherein the transfer unit is configured to transfer the granular material group in a state of being spread in a horizontal direction in a single layer state, and the illuminating unit is configured to illuminate the full width of the granular material group in the horizontal width direction. 4. The defective object removing device according to claim 3, wherein the light receiving unit is configured to set the entire width of the granular material group in the width direction as a light receiving range. 【請求項５】 前記移送手段は、不良物にエアーを吹き
付けて正常物の経路から分離させるように構成されてい
る請求項３又は４記載の不良物除去装置。5. The defective object removing device according to claim 3, wherein the transfer means is configured to blow air to the defective object to separate the defective object from a normal object path.