JPH0228814B2 - - Google Patents

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Publication number
JPH0228814B2
JPH0228814B2 JP56024546A JP2454681A JPH0228814B2 JP H0228814 B2 JPH0228814 B2 JP H0228814B2 JP 56024546 A JP56024546 A JP 56024546A JP 2454681 A JP2454681 A JP 2454681A JP H0228814 B2 JPH0228814 B2 JP H0228814B2
Authority
JP
Japan
Prior art keywords
light
crack
rice
grains
counter circuit
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.)
Expired - Lifetime
Application number
JP56024546A
Other languages
Japanese (ja)
Other versions
JPS57137857A (en
Inventor
Toshihiko Satake
Yasuhiro Yamaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Satake Engineering Co Ltd
Original Assignee
Satake Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Satake Engineering Co Ltd filed Critical Satake Engineering Co Ltd
Priority to JP2454681A priority Critical patent/JPS57137857A/en
Publication of JPS57137857A publication Critical patent/JPS57137857A/en
Publication of JPH0228814B2 publication Critical patent/JPH0228814B2/ja
Granted legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • G01N33/10—Starch-containing substances, e.g. dough

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、胴割れ粒検出装置の改良に関する。[Detailed description of the invention] Industrial applications The present invention relates to an improvement of a shell crack grain detection device.

従来の技術 近時の稲作作業の機械化に伴い、収獲後の籾乾
燥にも能率的で天候に左右されない乾燥機が用い
られる。熱風による機械乾燥は一定条件でしかも
能率良く作業できるが、籾の温度・乾減率が高く
なるとしばしば胴割粒（亀裂粒子）を生じ、また
前記胴割粒は急激な吸湿作用によつても発生す
る。Conventional technology With the recent mechanization of rice cultivation, dryers are used to dry paddy after harvesting, which is efficient and unaffected by the weather. Mechanical drying using hot air can be carried out efficiently under certain conditions, but when the temperature and drying rate of paddy increases, split grains (crack particles) often occur. Occur.

また、欠陥を検出すべき錠剤を検査位置を経て
搬送する機構と、検査位置にある錠剤の像を形成
する光学系と、この錠剤の像を撮像し、これを錠
剤の移動方向に対して直角な方向に走査する
CCDリニアアレイとを見えた錠剤欠陥の自動検
出装置が特開昭55−129731号として提案されてい
る。 It also includes a mechanism for transporting the tablet for which defects are to be detected through the inspection position, an optical system for forming an image of the tablet at the inspection position, and an optical system for taking an image of the tablet at right angles to the direction of tablet movement. scan in the direction
An automatic tablet defect detection device using a CCD linear array has been proposed in Japanese Patent Application Laid-Open No. 129731/1983.

さらに、被検査球状体に必要な回転を与え、そ
の被検査球状面に投光部より光線を照射し、その
反射光を固体撮像アレー素子により電気信号に変
換し、この電気信号を判別処理回路に入力して被
検査球状体表面の欠陥を検査する球状体の外観検
査装置が特開昭55−149830号として提案されてい
る。 Furthermore, the spherical body to be inspected is given the necessary rotation, the spherical surface to be inspected is irradiated with a light beam from the light projector, the reflected light is converted into an electrical signal by a solid-state imaging array element, and this electrical signal is sent to a discrimination processing circuit. A spherical body appearance inspection apparatus for inspecting defects on the surface of a spherical body to be inspected by inputting information has been proposed in Japanese Patent Laid-Open No. 55-149830.

発明が解決すべき課題 本発明は、特開昭55−129731号または特開昭55
−149830号に示された錠剤または球状体表面から
の反射光線によることなく、光源からスリツト状
透光窓を介して照射されて米粒内を透過する光線
が、胴割面において屈析散乱して該胴割面を境界
にしてその前後部分の光量が大幅に変化すること
を利用し、各米粒の透過光線の明暗影状態を精密
に検出して胴割粒数を計数すると共に、一部の受
光素子の出力信号によつて米粒総数を計数するよ
うにし、もつて胴割粒数及び米粒総数を確実に、
かつ自動的に計数し、さらに米粒総数に対する胴
割れ粒数の割合を表示する胴割れ粒検出装置を提
供せんとするものである。Problems to be Solved by the Invention The present invention is directed to Japanese Patent Application Laid-Open No. 55-129731 or
149830, the light rays emitted from the light source through the slit-shaped transparent window and transmitted through the rice grains are refracted and scattered at the split surface of the rice grain. Utilizing the fact that the amount of light in the front and rear parts of the rice grains as a boundary changes significantly, the light and dark states of the transmitted light rays through each rice grain are precisely detected to count the number of grains that have been split into rice grains. The total number of rice grains is counted based on the output signal of the light receiving element, thereby ensuring the number of split grains and the total number of rice grains.
It is also an object of the present invention to provide a cracked rice grain detection device that automatically counts rice grains and displays the ratio of the number of cracked rice grains to the total number of rice grains.

課題を解決するための手段 本発明の胴割れ粒検出装置は、樋底部にスリツ
ト状透光窓を設けた送米樋を横または緩傾斜状に
装架し、前記透光窓の上下位置に光源と受光装置
をほぼ対向状に配置して前記透光窓を通過する米
粒の透過光線によつて亀裂粒子を検出する装置に
おいて、前記受光装置に複数個の受光素子を集束
状に配設すると共に、該受光装置と前記透光窓の
間に前記米粒の透過光線を拡大して各受光素子に
射入する光学レンズを設け、前記各受光素子を亀
裂粒子用カウンタ回路に連絡すると共に、一部の
受光素子を粒数用カウンタ回路に連結し、前記亀
裂粒子用カウンタ回路と粒数用カウンタ回路とを
胴割れ粒数を粒数で除算して表示する胴割率用表
示器に連絡したことを特徴とする構成を有する。Means for Solving the Problems The shell-cracked grain detection device of the present invention has a rice feeding gutter provided with a slit-shaped transparent window at the bottom of the gutter, which is installed horizontally or in a gently inclined manner, and is mounted at the upper and lower positions of the transparent window. In an apparatus for detecting crack particles by a transmitted light beam of rice grains passing through the light-transmitting window by arranging a light source and a light-receiving device in a substantially opposing manner, a plurality of light-receiving elements are arranged in a convergent manner in the light-receiving device. At the same time, an optical lens is provided between the light receiving device and the light transmitting window to magnify the light beam transmitted through the rice grains and make it incident on each light receiving element, and connecting each of the light receiving elements to a crack particle counter circuit. The light receiving element of the section was connected to a particle number counter circuit, and the cracked particle counter circuit and the particle number counter circuit were connected to a shell ratio display that displayed the number of shell cracked grains divided by the number of grains. It has a configuration characterized by the following.

実施例 本発明を実施例図について説明する。図中、符
号１は箱形機枠で、該機枠１内に振動装置２を備
えた送米樋３を横または緩傾斜状に装架し、その
樋内の受入部４の上部に供給ホツパー５を装架す
ると共に、排出側の樋端を機枠側壁の開口部６か
ら外部に突出し、送米樋３の樋底部に設けたスリ
ツト状透光窓７の上下位置に光量検出装置の白熱
電球などからなる光源８と、フオトダイオードな
どの受光素子Ｓからなる受光装置９をほぼ対向状
に配置すると共に、受光装置９を機枠１上部の亀
裂粒子検出器１０に関連的に、かつ、電気的に連
結し、前記透光窓７のスリツトを通過する穀粒の
透過光線によつて亀裂粒子を検出するように形成
してある。そして、前記受光装置９には複数個の
受光素子Ｓを集束して配設すると共に、該受光装
置９と前記透光窓７との間に前記米粒の透過光線
を拡大て各受光素子Ｓ…に射入する一枚の光学レ
ンズ１１を設ける。Embodiments The present invention will be described with reference to embodiment figures. In the figure, reference numeral 1 denotes a box-shaped machine frame, in which a rice feeding gutter 3 equipped with a vibrating device 2 is installed horizontally or at a gentle slope, and the rice is fed to the upper part of the receiving section 4 in the gutter. At the same time as mounting the hopper 5, the end of the gutter on the discharge side protrudes outside from the opening 6 in the side wall of the machine frame, and the incandescent light of the light amount detection device is placed above and below the slit-shaped transparent window 7 provided at the bottom of the rice feeding gutter 3. A light source 8 consisting of a light bulb or the like and a light receiving device 9 consisting of a light receiving element S such as a photodiode are arranged substantially opposite to each other, and the light receiving device 9 is arranged in relation to a crack particle detector 10 on the upper part of the machine frame 1, and They are electrically connected and configured to detect crack particles by the transmitted light of the grain passing through the slit of the light-transmitting window 7. A plurality of light-receiving elements S are arranged in a focused manner in the light-receiving device 9, and the transmitted light of the rice grains is expanded between the light-receiving device 9 and the transparent window 7, so that each light-receiving element S... A single optical lens 11 is provided that allows the light to enter the light.

図中では、受光素子Ｓの５個を横一条列に配す
ると共に、該条列に縦３段に重ねて集束し、矩形
状にかつ一体的に形成してある。前記受光装置９
の受光素子Ｓの前面にはスクリーン１２を設け
る。 In the figure, five light-receiving elements S are arranged in a horizontal row and are stacked and focused in three vertical stages in the row to form an integral rectangular shape. The light receiving device 9
A screen 12 is provided in front of the light receiving element S.

前記亀裂粒子検出器１０は亀裂粒子用カウンタ
回路１３と粒数用カウンタ回路１４と胴割れ専用
デジタル表示器２４からなり、その構成を第２図
の電気回路について説明する。亀裂粒子用カウン
タ回路１３は受光装置９に設けた集束状の各受光
素子S1，S2，S3…Soの出力側をそれぞれ増幅器１
６…を介して各比較器１７ａ，１７ｂ，１７ｃ…
１７ｎの入力側一端子に連結すると共に、入力側
の別端子を設定器１５に夫々連結し、また、前記
各比較器１７ａ，１７ｂ，１７ｃ…１７ｎの出力
側をCPU回路１８に連結する。該CPU回路１８
にはパターンゼネレータ１９を連結すると共に、
その出力側を出力制御回路２０、ワンシヨツト回
路２１、カウンター回路２２、亀裂粒用表示器２
３を介して胴割率用デジタル表示器２４に連結さ
れる。 The crack particle detector 10 consists of a crack particle counter circuit 13, a particle number counter circuit 14, and a digital display dedicated to body cracks 24, and its configuration will be explained with reference to the electric circuit shown in FIG. 2. The crack particle counter circuit 13 connects the output sides of the focused light receiving elements S 1 , S 2 , S 3 . . . S o provided in the light receiving device 9 to the amplifier 1, respectively.
Each comparator 17a, 17b, 17c... via 6...
It is connected to one input terminal of the comparator 17n, and another terminal on the input side is connected to the setter 15, and the output side of each of the comparators 17a, 17b, 17c, . . . 17n is connected to the CPU circuit 18. The CPU circuit 18
The pattern generator 19 is connected to the
The output side is an output control circuit 20, a one-shot circuit 21, a counter circuit 22, and a crack grain indicator 2.
3 to a digital display 24 for body division ratio.

次に、粒数用カウンタ回路１４は前記受光素子
S2に接続した増幅器１６の出力側の分岐回路２５
を比較器２６、ワンシヨツト回路２８に連結する
と共に、前記比較器２６には設定器２７を連結
し、また、前記ワンシヨツト回路２８の出力側を
分岐してその一方を前記出力制御回路２０に連結
すると共に、その他方をカウンタ２９、粒数用表
示器３０を介して前記デジタル表示器２４に連結
してある。 Next, the particle number counter circuit 14 is connected to the light receiving element.
Branch circuit 25 on the output side of amplifier 16 connected to S 2
is connected to a comparator 26 and a one-shot circuit 28, and a setter 27 is connected to the comparator 26, and the output side of the one-shot circuit 28 is branched and one side is connected to the output control circuit 20. The other end is connected to the digital display 24 via a counter 29 and a grain number display 30.

上記の構成において、亀裂粒子用カウンタ回路
１３の各比較器１７ａ，１７ｂ，１７ｃ…１７ｎ
に設けたそれぞれの設定器１５…に試料穀粒（例
えば籾米）の中央透明部分の基準明暗度を設定
し、また、粒数用カウンタ回路１４側に設けた比
較器２６の設定器２７に受光面のバツクランドＥ
と粒子を識別する明暗度の所定電圧を設定する。
そして、供給ホツパー５に籾米を投入して該装置
を起動すると、供給ホツパー５から流下した籾米
は、振動装置２の振動作用によつて送米樋３内に
縦列状に配列してその樋底部に設けた透光窓７の
スリツト面をそれぞれ通過し、該透光窓７に位置
する籾米は、下部の光源８から前記スリツトを介
して斜上方向に照射されると共に、その粒子の透
過光線は光学レンズ１１によつて拡大されて上部
の受光装置９の受光面に射影される。この受光作
用を第３図について説明する。その例図ａにおい
て、籾米Ｐはその粒子の前端部Ｆを前方に矢印方
向に流動し、また、粒子中央部の縦状点線Ｑは樋
底部の前記透光窓７を示す。例図ｂにおいて、受
光装置９は15個の受光素子S1，S2，S3…S15を横
３列の矩形状に配置して一体的に形成され、また
前記籾米Ｐの整粒子の透過光線の影像はその向き
を左右反対に映写されると共に、図中、点線の閉
曲線Ｒのように光学レンズ１１によつて受光面一
杯に拡大される。そして、前記籾米Ｐはその前端
部Ｆが受光装置９の右側端中央の受光素子S2によ
つて検出されたとき、流動籾米は光量測定の定位
置に達するので、その検出信号を出力制御回路２
０に送つて制御信号（出力をON）を発すると共
に、粒数用カウンタ回路にも送つてその粒数が計
算される。また、例図ｃは籾米の整粒子を表示
し、図ｄはその透過光線の影像の明暗度（Ｈまた
はＬ）の分布図、また、例図ｅ，ｇは共に胴割粒
を表示し、図ｆ，ｈはその影像の明暗度（Ｈまた
はＬ）の分布図である。 In the above configuration, each comparator 17a, 17b, 17c...17n of the crack particle counter circuit 13
The standard brightness of the central transparent part of the sample grain (for example, unhulled rice) is set in each setter 15 provided on the side, and the setter 27 of the comparator 26 provided on the grain number counter circuit 14 side is set to Men's Backland E
and set a predetermined voltage of intensity to identify particles.
Then, when unhulled rice is put into the supply hopper 5 and the device is started, the unhulled rice flowing down from the supply hopper 5 is arranged in a column in the rice feeding gutter 3 by the vibration action of the vibrating device 2, and reaches the bottom of the gutter. The unhulled rice located in the transparent window 7 is irradiated obliquely upward from the light source 8 at the bottom through the slit, and the light beams transmitted through the particles pass through the slit surfaces of the transparent window 7 provided in is magnified by the optical lens 11 and projected onto the light receiving surface of the upper light receiving device 9. This light receiving action will be explained with reference to FIG. In the example diagram a, the unhulled rice P flows forward through the front end F of the grain in the direction of the arrow, and the vertical dotted line Q at the center of the grain indicates the transparent window 7 at the bottom of the gutter. In example figure b, the light receiving device 9 is integrally formed by arranging 15 light receiving elements S 1 , S 2 , S 3 . . . S 15 in a rectangular shape in three horizontal rows. The image of the transmitted light beam is projected with its direction opposite to the left and right, and is enlarged by the optical lens 11 to fill the light-receiving surface, as shown by the dotted closed curve R in the figure. When the front end F of the unhulled rice P is detected by the light receiving element S2 at the center of the right end of the light receiving device 9, the flowing unhulled rice reaches the fixed position for light intensity measurement, and the detection signal is output to the control circuit. 2
0 to issue a control signal (turns on the output), and also sends it to a grain number counter circuit to calculate the number of grains. In addition, example diagram c displays regular grains of unhulled rice, diagram d is a distribution diagram of the brightness (H or L) of the image of the transmitted light, and example diagrams e and g both display split grains, Figures f and h are distribution charts of the brightness (H or L) of the image.

そして、前記胴割粒ｅ，ｇに対する入射光は、
前記透光窓７のスリツトから斜上方向に粒子内に
射入すると共に、その透過光線は前記胴割面Ａに
屈析または散乱して光線の透過を遮断し、粒子の
胴割面Ａの前後両部において、前記透過光線の光
量は大幅にそれぞれ変化し、その光量を受光する
受光装置９の各受光素子Ｓ…の受光面ではその明
度Ｈの部分だけが鮮明に受光されるから、その影
像形態によつて胴割粒をそれぞれ選定することが
できる。そこで、前記籾米の整粒子の影像パター
ンｄと各胴割粒の各影像パターンｆ、ｈを亀裂粒
子用カウンタ回路１３のパターンゼネレーター１
９にそれぞれ記憶させると共に、該ゼネレーター
１９が接続するCPU回路１８において、前記各
受光素子からの検出信号と前記ゼネレーター１９
の各影像パターンｄ，ｆ，ｈの信号とを対比して
選定すると共に、前記胴割粒の影像パターンｆ，
ｈに一致する一致信号は出力制御回路２０の制御
信号（ON・OFF）を介してワンシヨツト回路２
１、カウンタ回路２２にそれぞれ送信されてその
粒数が計算されると共に、亀裂粒子用表示器２３
によつてその胴割粒数が表示される。また、粒数
用カウンタ回路１４では、特定位置に設けた前記
受光素子S2が流動する粒子の前端部Ｆを検出（明
暗度により）すると前述したようにその粒子は光
量測定の定位置に在るので、その検出信号は出力
制御回路２０の出力を制御して胴割粒の信号を流
してその粒数を算定すると共に、粒数用カウンタ
回路１４にも送信して穀粒総数を算出して粒数用
表示器３０に表示される。この穀粒総数と前記胴
割粒数は胴割率用デジタル表示器２４で胴割粒数
を穀粒総数で除してその胴割率がデジタル表示さ
れることになる。 The incident light on the split grains e and g is as follows:
The transmitted light enters the particle obliquely upward from the slit of the light-transmitting window 7, and the transmitted light is refracted or scattered on the shell-cutting surface A, blocking the transmission of the light beam, and In both the front and rear parts, the amount of transmitted light changes significantly, and only the portion with brightness H is clearly received by the light receiving surface of each light receiving element S of the light receiving device 9 that receives the amount of light. The split grains can be selected depending on the image form. Therefore, the image pattern d of the regular grains of unhulled rice and the image patterns f and h of each split grain are transmitted to the pattern generator 1 of the crack particle counter circuit 13.
9, and in the CPU circuit 18 to which the generator 19 is connected, the detection signals from each of the light receiving elements and the generator 19 are stored.
The image patterns f, h of the split grain are selected by comparing the signals of the image patterns d, f, h.
The coincidence signal that matches h is sent to the one-shot circuit 2 via the control signal (ON/OFF) of the output control circuit 20.
1. The number of particles is calculated by being sent to the counter circuit 22, and the crack particle display 23
The number of shell-split grains is displayed. In addition, in the particle number counter circuit 14, when the light receiving element S2 provided at a specific position detects the front end F of a flowing particle (based on brightness), the particle is located at a fixed position for light amount measurement as described above. Therefore, the detection signal is sent to the grain number counter circuit 14 to calculate the number of grains by controlling the output of the output control circuit 20 to send a signal for splitting grains, and is also sent to the grain number counter circuit 14 to calculate the total number of grains. is displayed on the grain number display 30. The total number of grains and the number of shell splits are digitally displayed on the shell split ratio digital display 24 by dividing the number of shell split grains by the total number of grains.

発明の効果 本発明の胴割れ粒検出装置は、送米樋のスリツ
ト状透光窓を通過する穀粒を光源で照射し、その
粒子内を透過する光線の粒子の胴割面の前後部分
で各部の光量がそれぞれ変化する光量変化に基づ
く明暗度の影像を光学レンズで拡大して複数個の
受光素子を集束した受光面で受光し、その影像パ
ターンの変化を利用することによつて胴割粒数を
計数し、併せて一部の受光素子の粒子検出信号に
よつて穀粒総数を計数するから、米粒内部に生じ
た亀裂も明確に検出することが可能で、胴割粒
（亀裂粒子）数と穀粒総数との計数作業の自動化
を完成すると共に、その作業の能率化を充分に達
成でき、さらに、胴割粒数と穀粒総数とから胴割
率を正確に、かつ迅速に算定して表示でき、ま
た、その検出機能を活用することにより、常に良
質の精選穀粒の量産を達成できる等の効果を奏す
るものである。Effects of the Invention The cracked grain grain detection device of the present invention irradiates the grains passing through the slit-shaped transparent window of the rice feeding gutter with a light source, and detects the front and rear portions of the grain surface of the grains of the light beam that passes through the grains. The image of brightness based on the change in the amount of light in each part is magnified by an optical lens, and the light is received by a light-receiving surface that focuses multiple light-receiving elements, and the changes in the image pattern are used to split the body. Since the number of grains is counted and the total number of grains is also counted based on the particle detection signals from some of the light receiving elements, it is possible to clearly detect cracks that have occurred inside the rice grains. ) and the total number of grains, the efficiency of the work can be fully achieved, and furthermore, the shell splitting ratio can be calculated accurately and quickly from the number of shell split grains and the total number of grains. It can be calculated and displayed, and by utilizing its detection function, it has the effect of consistently achieving mass production of selected grains of high quality.

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

図面は本発明の実施例図である。第１図は本装
置の側断面図、第２図はその亀裂粒子検出器の電
気回路、第３図は粒子と受光装置及び各影像パタ
ーンの説明図である。 １……機枠、２……振動装置、３……送米樋、
４……受入部、５……供給ホツパー、６……開口
部、７……透光窓、８……光源、９……受光装
置、１０……亀裂粒子検出器、１１……光学レン
ズ、１２……スクリーン、１３……亀裂粒子用カ
ウンタ回路、１４……粒数用カウンタ回路、１５
……設定器、１６……増幅器、１７……比較器、
１８……CPU回路、１９……パターンゼネレー
ター、２０……出力制御回路、２１……ワンシヨ
ツト回路、２２……カウンター回路、２３……亀
裂粒用表示器、２４……胴割率用デジタル表示
器、２５……分岐回路、２６……比較器、２７…
…設定器、２８……ワンシヨツト回路、２９……
カウンタ、３０……粒数用表示器、Ｓ……受光素
子。 The drawings are illustrations of embodiments of the present invention. FIG. 1 is a side sectional view of the present device, FIG. 2 is an electric circuit of the crack particle detector, and FIG. 3 is an explanatory diagram of particles, a light receiving device, and each image pattern. 1... Machine frame, 2... Vibration device, 3... Rice feeding gutter,
4... Receiving part, 5... Supply hopper, 6... Opening, 7... Translucent window, 8... Light source, 9... Light receiving device, 10... Crack particle detector, 11... Optical lens, 12...Screen, 13...Crack particle counter circuit, 14...Particle number counter circuit, 15
...Setter, 16...Amplifier, 17...Comparator,
18...CPU circuit, 19...Pattern generator, 20...Output control circuit, 21...One shot circuit, 22...Counter circuit, 23...Crack grain indicator, 24...Digital display for body division ratio device, 25... branch circuit, 26... comparator, 27...
...Setting device, 28... One shot circuit, 29...
Counter, 30... particle number indicator, S... light receiving element.

Claims (1)

【特許請求の範囲】 １ 樋底部にスリツト状透光窓を設けた送米樋を
横または緩傾斜状に装架し、前記透光窓の上下位
置に光源と受光装置をほぼ対向状に配置して前記
透光窓を通過する米粒の透過光線によつて亀裂粒
子を検出する装置において、前記受光装置に複数
個の受光素子を集束状に配設すると共に、該受光
装置と前記透光窓の間に前記米粒の透過光線を拡
大して各受光素子に射入する光学レンズを設け、
前記各受光素子を亀裂粒子用カウンタ回路に連絡
すると共に、一部の受光素子を粒数用カウンタ回
路に連結し、前記亀裂粒子用カウンタ回路と粒数
用カウンタ回路とを胴割れ粒数を粒数で除算して
表示する胴割率用表示器に連絡したことを特徴と
する胴割れ粒検出装置。 ２ 前記受光装置が、その受光素子の前面にスク
リーンを設けたものである特許請求の範囲第１項
記載の胴割れ粒検出装置。[Claims of Claims] 1. A rice feeding gutter with a slit-shaped transparent window provided at the bottom of the gutter is mounted horizontally or at a gentle slope, and a light source and a light receiving device are arranged above and below the transparent window in a substantially opposing manner. In the apparatus for detecting crack particles by the transmitted light beam of the rice grain passing through the light-transmitting window, the light-receiving device includes a plurality of light-receiving elements arranged in a convergent manner, and the light-receiving device and the light-transmitting window an optical lens is provided between the rice grains to magnify the light beam transmitted through the rice grains and make it incident on each light receiving element;
Each of the light-receiving elements is connected to a crack particle counter circuit, and some of the light-receiving elements are connected to a particle number counter circuit, and the crack particle counter circuit and the particle number counter circuit are used to calculate the number of cracked particles. A shell crack grain detection device characterized in that it is connected to a shell split ratio display that divides by a number and displays it. 2. The shell crack grain detection device according to claim 1, wherein the light receiving device is provided with a screen in front of the light receiving element.
JP2454681A 1981-02-20 1981-02-20 Cracked grain detecting device Granted JPS57137857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2454681A JPS57137857A (en) 1981-02-20 1981-02-20 Cracked grain detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2454681A JPS57137857A (en) 1981-02-20 1981-02-20 Cracked grain detecting device

Publications (2)

Publication Number Publication Date
JPS57137857A JPS57137857A (en) 1982-08-25
JPH0228814B2 true JPH0228814B2 (en) 1990-06-26

Family

ID=12141145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2454681A Granted JPS57137857A (en) 1981-02-20 1981-02-20 Cracked grain detecting device

Country Status (1)

Country Link
JP (1) JPS57137857A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595940A (en) * 1982-07-01 1984-01-12 Ketsuto Kagaku Kenkyusho:Kk Rejected particle detection method and apparatus for rejected particle of particulate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55129731A (en) * 1979-03-29 1980-10-07 Kan Oteru Automatic detector for deficient tablet
JPS55149830A (en) * 1979-05-11 1980-11-21 Nippon Seiko Kk Inspection apparatus for appearance of spherical body

Also Published As

Publication number Publication date
JPS57137857A (en) 1982-08-25

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