JP2002168805A - X-ray foreign matter detector - Google Patents
X-ray foreign matter detectorInfo
- Publication number
- JP2002168805A JP2002168805A JP2000361413A JP2000361413A JP2002168805A JP 2002168805 A JP2002168805 A JP 2002168805A JP 2000361413 A JP2000361413 A JP 2000361413A JP 2000361413 A JP2000361413 A JP 2000361413A JP 2002168805 A JP2002168805 A JP 2002168805A
- Authority
- JP
- Japan
- Prior art keywords
- ray
- inspection
- foreign matter
- inspection object
- rays
- 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
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば生肉、魚、
加工食品、医薬などの各品種の被検査物に対し、Ｘ線を
曝射したときのＸ線の透過量から被検査物中の異物を検
出するＸ線異物検出装置に関する。TECHNICAL FIELD The present invention relates to raw meat, fish,
The present invention relates to an X-ray foreign matter detection device that detects foreign matter in a test object from the amount of X-ray transmitted when X-rays are irradiated to the test object of each type, such as processed foods and pharmaceuticals.
【０００２】[0002]
【従来の技術】Ｘ線異物検出装置は、搬送ライン上を順
次搬送されてくる例えば生肉、魚、加工食品、医薬など
の各品種の被検査物にＸ線を曝射し、この曝射したＸ線
の透過量から被検査物中に金属、ガラス、石、骨などの
異物が混入しているか否かを検出する装置である。2. Description of the Related Art X-ray foreign matter detectors irradiate X-rays to inspection objects of various varieties, such as raw meat, fish, processed foods, and pharmaceuticals, which are sequentially conveyed on a conveyance line, and are irradiated with the X-rays. This is a device that detects whether or not a foreign substance such as metal, glass, stone, bone, or the like is mixed in the inspection object from the amount of transmitted X-rays.
【０００３】この種のＸ線異物検出装置では、Ｘ線曝射
時の被検査物の内部状態を示す画像表示や良否判定表示
などが装置本体の前面に設けられた表示器の表示画面上
に表示されるようになっている。In this type of X-ray foreign matter detection apparatus, an image display showing the internal state of the inspection object at the time of X-ray exposure, a quality judgment display, and the like are displayed on a display screen of a display provided on the front of the apparatus body. It is displayed.
【０００４】ところで、被検査物２が図３に示すような
レトルト製品の場合、内容物となる食品等を袋に封じ込
めて密封される。そして、この種のレトルト製品を殺菌
処理する場合、内容物の容量に応じて殺菌する時間と熱
量が決まっており、レトルト製品に熱量が加わり過ぎる
と製品の風味が落ち、逆にレトルト製品に加わる熱量が
不足すると十分な殺菌処理がなされない。このため、図
３に示すようなレトルト製品２内に発生する気泡２１の
量に気を使っており、上述した異物混入の有無を検査す
るだけでなく、内部の気泡量に応じて製品の良否を検査
する必要があった。When the inspection object 2 is a retort product as shown in FIG. 3, a food or the like as a content is sealed in a bag. And when sterilizing this kind of retort product, the time and amount of heat to sterilize according to the volume of the contents are determined, and if too much heat is added to the retort product, the flavor of the product drops, and conversely it is added to the retort product If the amount of heat is insufficient, sufficient sterilization treatment is not performed. For this reason, the amount of bubbles 21 generated in the retort product 2 as shown in FIG. 3 is taken into consideration, and not only the above-described inspection of the presence or absence of foreign matter inclusion, but also the quality of the product according to the amount of internal bubbles. Had to be inspected.
【０００５】そこで、従来は、異物検査の工程とは別工
程で、レトルト製品を水に漬け込み、そこから出る気泡
の量を見て良否を検査していた。Therefore, conventionally, in a process different from the foreign material inspection process, the retort product is immersed in water, and the quality of the retort product is inspected by observing the amount of bubbles coming out of the product.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上述し
た従来の検査方法では、全製品のうちの一部を抜き取り
検査していたため、全製品を検査することができず、検
査の信頼性に欠けていた。しかも、気泡検査は異物検査
の工程とは別工程で行われるので、検査に手間と時間が
かかるという問題があった。However, in the above-mentioned conventional inspection method, since a part of all products is sampled and inspected, all products cannot be inspected and the reliability of the inspection is lacking. Was. In addition, since the bubble inspection is performed in a step different from the foreign matter inspection step, there is a problem that the inspection takes time and effort.
【０００７】そこで、本発明は、上記問題点に鑑みてな
されたものであり、被検査物全ての気泡検査を行うこと
ができるＸ線異物検出装置を提供することを目的として
いる。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an X-ray foreign matter detection device capable of performing a bubble inspection of all inspection objects.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明に係るＸ線異物検出装置は、被検査
物２にＸ線を曝射し、このＸ線の曝射に伴って前記被検
査物を透過してくるＸ線の透過量から前記被検査物中の
異物の有無を検査するＸ線異物検出装置１において、前
記被検査物にＸ線を曝射したときにＸ線透過量が予め設
定されたしきい値以上の部分を気泡と判別し、この気泡
と判別された部分の面積を算出し、この算出された面積
の合計値が予め設定された基準面積以上のときに前記被
検査物を不良品と判定する手段１３を備えたことを特徴
とする。In order to achieve the above object, an X-ray foreign matter detection apparatus according to the first aspect of the present invention irradiates an X-ray to an object to be inspected 2 and emits the X-ray. In the X-ray foreign matter detection device 1 for inspecting the presence or absence of foreign matter in the inspection object from the amount of X-ray transmitted through the inspection object, the X-ray is irradiated when the inspection object is exposed to X-rays. A portion where the line transmission amount is equal to or greater than a predetermined threshold value is determined as a bubble, an area of the portion determined to be a bubble is calculated, and a total value of the calculated areas is equal to or greater than a predetermined reference area. It is characterized in that a means 13 for judging the object to be inspected as defective is provided.
【０００９】本発明のＸ線異物検出装置１は、被検査物
２にＸ線を曝射したときに、Ｘ線透過量が予め設定され
たしきい値以上の部分を気泡を判別し、この気泡と判別
された面積を算出し、算出された面積の合計値が基準面
積以上のときに、その被検査物２を不良品と自動判定す
る。The X-ray foreign matter detecting apparatus 1 of the present invention, when X-rays are irradiated on the inspection object 2, discriminates bubbles where the amount of X-ray transmission exceeds a preset threshold value. The area determined to be a bubble is calculated, and when the total value of the calculated areas is equal to or larger than the reference area, the inspection object 2 is automatically determined to be defective.
【００１０】[0010]
【発明の実施の形態】図１は本発明によるＸ線異物検出
装置の全体構成を示すブロック図、図２は同Ｘ線異物検
出装置の外観を示す斜視図である。FIG. 1 is a block diagram showing the overall configuration of an X-ray foreign matter detection device according to the present invention, and FIG. 2 is a perspective view showing the external appearance of the X-ray foreign matter detection device.
【００１１】図１および図２に示すように、Ｘ線異物検
出装置１は、搬送ラインの一部に設けられ、所定間隔を
おいて順次搬送されてくる被検査物２中（表面も含む）
に混入される異物の有無の検出と同時に被検査物２中の
気泡量を検査するものである。このＸ線異物検出装置１
は、搬送部３と異物検出部４とが装置本体１ａ内部に設
けられ、設定入力部５と表示器６からなる操作パネル７
が装置本体１ａの前面上部に設けられている。As shown in FIG. 1 and FIG. 2, an X-ray foreign matter detector 1 is provided in a part of a transport line, and is provided in an inspected object 2 (including a surface) which is sequentially transported at a predetermined interval.
The amount of air bubbles in the inspection object 2 is inspected at the same time as the detection of the presence or absence of foreign matter mixed in the sample. This X-ray foreign matter detector 1
The operation panel 7 includes a setting input section 5 and a display 6 in which a transport section 3 and a foreign substance detection section 4 are provided inside the apparatus main body 1a.
Is provided on the upper front surface of the apparatus main body 1a.
【００１２】図２に示すように、搬送部３は、例えば生
肉、魚、加工食品、医薬などの各品種の被検査物２を搬
送するもので、例えば装置本体１ａに対して水平に配置
されたベルトコンベアで構成される。搬送部３は、駆動
モータ８の駆動により予め設定された所定の搬送速度で
図１の矢印方向に搬入口３ａから搬入された被検査物２
を搬出口３ｂへ搬出している。As shown in FIG. 2, the transport section 3 transports inspected objects 2 of various varieties, such as raw meat, fish, processed food, and medicine, and is disposed, for example, horizontally with respect to the apparatus main body 1a. It consists of a belt conveyor. The transport unit 3 drives the inspection object 2 loaded from the loading port 3a in the direction of the arrow in FIG. 1 at a predetermined transport speed set in advance by the drive of the drive motor 8.
Is carried out to the carry-out port 3b.
【００１３】図１および図２に示すように、異物検出部
４は、搬送される被検査物２を搬送路途中において異物
を検出するもので、ベルトコンベア３の上方に所定高さ
離れて設けられるＸ線発生器９と、ベルトコンベア３内
にＸ線発生器９と対向して設けられるＸ線検出器１０を
備えて構成される。As shown in FIGS. 1 and 2, the foreign matter detector 4 detects a foreign matter in the transported inspection object 2 in the middle of the transport path, and is provided above the belt conveyor 3 at a predetermined height. And an X-ray detector 10 provided in the belt conveyor 3 so as to face the X-ray generator 9.
【００１４】設定入力部５は、被検査物２の異物検査に
関する各種設定や指示を与えるための複数のキーを備え
ている。特に図示はしないが、例えば装置運転の開始を
指示するときに操作されるスタートキー、装置運転の停
止を指示するときに操作されるストップキー、表示器６
に表示される画像を固定表示するモードと、表示器６に
表示される画像を被検査物２の動きに合わせてスクロー
ル表示するモードのいずれかに選択的に画面を切り替え
るときに操作される画面切替キーなどを備えている。The setting input unit 5 has a plurality of keys for giving various settings and instructions regarding foreign substance inspection of the inspection object 2. Although not specifically shown, for example, a start key operated to instruct the start of the operation of the apparatus, a stop key operated to instruct the stop of the operation of the apparatus, the display 6
Screen which is operated when the screen is selectively switched between a mode in which the image displayed on the display 6 is fixedly displayed and a mode in which the image displayed on the display 6 is scroll-displayed in accordance with the movement of the object 2. A switching key is provided.
【００１５】Ｘ線発生器９は、金属製の箱体１１内部に
設けられる円筒状のＸ線管１２を不図示の絶縁油により
浸漬した構成であり、Ｘ線管１２の陰極からの電子ビー
ムを陽極ターゲットに照射させてＸ線を生成している。
Ｘ線管１２は、その長手方向が被検査物２の搬送方向
（図１の矢印方向）と直交するように設けられている。
Ｘ線管１２により生成されたＸ線は、下方のＸ線検出器
１０に向けて、長手方向に沿った不図示のスリットを介
して、略円錐状のＸ線を略三角形状のスクリーン状にし
て曝射するようになっている。The X-ray generator 9 has a configuration in which a cylindrical X-ray tube 12 provided inside a metal box 11 is immersed in insulating oil (not shown). Is irradiated on the anode target to generate X-rays.
The X-ray tube 12 is provided so that its longitudinal direction is orthogonal to the transport direction of the inspection object 2 (the direction of the arrow in FIG. 1).
The X-rays generated by the X-ray tube 12 are converted into a substantially triangular screen by converting a substantially conical X-ray toward a lower X-ray detector 10 through a slit (not shown) along the longitudinal direction. To be exposed.
【００１６】Ｘ線検出器１０は、被検査物２に対してＸ
線が曝射されたときに、被検査物２を透過してくるＸ線
を検出し、この検出したＸ線の透過量に応じた電気信号
を出力している。The X-ray detector 10 applies an X-ray
When the X-rays are irradiated, X-rays that pass through the inspection object 2 are detected, and an electric signal corresponding to the detected X-ray transmission amount is output.
【００１７】図示はしないが、Ｘ線検出器１０には、例
えばベルトコンベア３上を搬送される被検査物２の搬送
方向（図１の矢印方向）と直交する方向にライン状に配
列された複数のフォトダイオードと、フォトダイオード
上に設けられたシンチレータとを備えたアレイ状のライ
ンセンサが用いられる。このような構成によるＸ線検出
器１０では、被検査物２に対してＸ線発生器９からＸ線
が曝射されたときに、被検査物２を透過してくるＸ線を
シンチレータで受けて光に変換する。さらにシンチレー
タで変換された光は、その下部に配置されるフォトダイ
オードによって受光される。そして、各フォトダイオー
ドは、受光した光を電気信号に変換して出力する。この
Ｘ線検出器１０による電気信号は、図１に示す制御手段
１３に入力される。Although not shown, the X-ray detectors 10 are arranged in a line in a direction orthogonal to the transport direction (the direction of the arrow in FIG. 1) of the inspection object 2 transported on the belt conveyor 3, for example. An array line sensor including a plurality of photodiodes and a scintillator provided on the photodiodes is used. In the X-ray detector 10 having such a configuration, when X-rays are emitted from the X-ray generator 9 to the inspection object 2, X-rays transmitted through the inspection object 2 are received by the scintillator. To convert to light. Further, the light converted by the scintillator is received by a photodiode disposed below the scintillator. Each photodiode converts the received light into an electric signal and outputs the electric signal. The electric signal from the X-ray detector 10 is input to the control means 13 shown in FIG.
【００１８】制御手段１３には、設定入力部５の所定の
キー入力により、装置運転の開始・停止を制御したり、
表示器６に表示されるＸ線曝射時の被検査物２の画像を
固定表示する固定表示モードと、前記画像を被検査物２
の動きに合わせてスクロール表示するスクロール表示モ
ードのいずれかに選択的に画面を切り替える画面切替指
令を表示制御手段１５に出力している。The control means 13 controls start / stop of the operation of the apparatus by a predetermined key input of the setting input section 5,
A fixed display mode for fixedly displaying an image of the inspection object 2 at the time of X-ray irradiation displayed on the display 6;
The display control means 15 outputs a screen switching command for selectively switching the screen to one of the scroll display modes in which scroll display is performed in accordance with the movement of the screen.
【００１９】また、制御手段１３には、被検査物２の通
過を検出するための位置検出手段１４からの信号が入力
される。位置検出手段１４は、例えばベルトコンベア３
の搬入口３ａ側に設けられる一対の投受光器からなるフ
ォトセンサで構成される。この構成により、被検査物２
がフォトセンサの前を通過していない状態では、投光器
から出射された光がそのまま受光器に受光される。これ
に対し、被検査物２がフォトセンサの前を通過している
間は、投光器から出射された光が被検査物２によって遮
られ、受光器が検出する受光量が減少する。そして、フ
ォトセンサからは受光器が検出する受光量に応じた電気
信号が制御手段１３に入力される。例えば被検査物２が
フォトセンサの前を通過していない状態では位置検出手
段１４からオフ信号が制御手段１３に入力され、被検査
物２がフォトセンサの前を通過している間では位置検出
手段１４からオン信号が制御手段１３に入力される。Further, a signal from a position detecting means 14 for detecting the passage of the inspection object 2 is input to the control means 13. The position detecting means 14 is, for example, the belt conveyor 3.
And a photosensor comprising a pair of light emitting and receiving devices provided on the side of the carry-in entrance 3a. With this configuration, the inspection object 2
Is not passing in front of the photosensor, the light emitted from the light projector is received by the light receiver as it is. On the other hand, while the inspection object 2 is passing in front of the photosensor, light emitted from the light projector is blocked by the inspection object 2, and the amount of light received by the light receiver decreases. Then, an electric signal corresponding to the amount of light received by the light receiver is input to the control means 13 from the photo sensor. For example, when the inspection object 2 does not pass in front of the photosensor, an off signal is input from the position detection unit 14 to the control unit 13, and the position detection is performed while the inspection object 2 passes in front of the photosensor. An ON signal is input from the means 14 to the control means 13.
【００２０】さらに、制御手段１３は、位置検出手段１
４が被検査物２の先端を検出してから後端を検出するま
でにＸ線検出器１０から入力される電気信号を被検査物
２のデータとして表示制御手段１５に出力している。Further, the control means 13 includes the position detecting means 1
4 outputs an electric signal input from the X-ray detector 10 to the display control means 15 as data of the inspection object 2 from when the front end of the inspection object 2 is detected to when the rear end is detected.
【００２１】そして、制御手段１３では、被検査物２を
透過したＸ線の透過量に応じた電気信号と、予め設定さ
れた異物混入判別用のＸ線透過量のしきい値を比較し、
その比較結果に基づいて被検査物２中に金属、ガラス、
石、骨などの異物が混入されているか否かを判別し、こ
の判別結果から被検査物２の良否を判定し、被検査物２
が良品又は不良品であるかを示す選別信号を外部出力し
ている。Then, the control means 13 compares the electric signal corresponding to the transmission amount of the X-ray transmitted through the inspection object 2 with a preset threshold value of the X-ray transmission amount for foreign matter inclusion determination.
Based on the comparison result, metal, glass,
It is determined whether or not a foreign substance such as a stone or a bone is mixed, and the quality of the inspection object 2 is determined based on the determination result.
Is externally output as a selection signal indicating whether or not is a non-defective product or a defective product.
【００２２】また、制御手段１３は、上記異物検査と同
時に、被検査物２の気泡２１の有無を判別して良否を判
定するための構成として、図１に示すように、気泡有無
判別手段１３ａ、面積算出手段１３ｂ、良否判定手段１
３ｃを備えている。気泡有無判別手段１３ａは、Ｘ線曝
射時の被検査物２の画像から気泡２１の有無を判別して
いる。更に説明すると、気泡判別用のＸ線透過量のしき
い値が予め設定されており、Ｘ線検出器１０からのＸ線
透過量に応じた電気信号を前記しきい値と比較し、Ｘ線
検出器１０からのＸ線透過量に応じた電気信号がしきい
値以上のときに気泡有りと判別している。面積算出手段
１３ｂは、例えば位置検出手段１４が被検査物２の先端
を検出した後、Ｘ線透過量に応じた電気信号がしきい値
を越える画素部分を加算して気泡と判別された部分の面
積を算出している。良否判定手段１３ｃは、面積算出手
段１３ｂが算出する気泡と判別された部分の面積の合計
値が予め設定された基準面積（被検査物２が正常品のと
きの面積）以上のときに、その被検査物２を不良品と自
動判定し、不良品を示す選別信号を外部出力している。As shown in FIG. 1, the control means 13 determines the presence or absence of air bubbles 21 in the inspection object 2 at the same time as the above-described foreign substance inspection. , Area calculation means 13b, pass / fail determination means 1
3c. The bubble presence / absence determining means 13a determines the presence / absence of bubbles 21 from the image of the inspection object 2 at the time of X-ray irradiation. More specifically, a threshold value of the X-ray transmission amount for bubble determination is set in advance, and an electric signal corresponding to the X-ray transmission amount from the X-ray detector 10 is compared with the threshold value. When the electric signal corresponding to the amount of X-ray transmission from the detector 10 is equal to or greater than the threshold value, it is determined that there is a bubble. For example, after the position detecting unit 14 detects the tip of the inspection object 2, the area calculating unit 13 b adds a pixel portion where an electric signal according to the X-ray transmission amount exceeds a threshold value and determines a portion determined to be a bubble. Is calculated. If the total value of the areas determined as bubbles by the area calculation means 13b is equal to or larger than a predetermined reference area (the area when the inspection object 2 is a normal product), The inspection object 2 is automatically determined as a defective product, and a selection signal indicating the defective product is output to the outside.
【００２３】表示制御手段１５には、制御手段１３から
被検査物２の検査データや検査結果データ、表示データ
などが入力される。表示制御手段１５では、例えばＸ線
曝射時の被検査物２の画像、良否判定判定表示や検査結
果表示などを表示器６に表示するべく、制御手段１３か
らの各種データに基づいて表示器６の表示を制御してい
る。また、表示制御手段１５は、制御手段１３から画面
切替指令が入力されたときに、現在の表示が固定表示モ
ードであればスクロール表示モードに切り替え、現在の
表示がスクロール表示モードであれば固定表示モードに
切り替えて表示器６の表示を制御している。The display controller 15 receives inspection data, inspection result data, display data, and the like of the inspection object 2 from the controller 13. The display control means 15 displays the image of the object 2 to be inspected at the time of X-ray irradiation, the display of the quality judgment judgment, the inspection result display, and the like on the display 6 based on various data from the control means 13. 6 is controlled. Further, when the screen switching command is input from the control unit 13, the display control unit 15 switches to the scroll display mode if the current display is the fixed display mode, and switches to the fixed display if the current display is the scroll display mode. The display on the display 6 is controlled by switching to the mode.
【００２４】上記のように構成されるＸ線異物検出装置
１では、被検査物２がベルトコンベア３の搬入口３ａよ
り搬入されると、その搬送過程において被検査物２にＸ
線発生器８からＸ線が曝射される。このＸ線の曝射に伴
って被検査物２を透過してくるＸ線はＸ線検出器９によ
って検出される。そして、制御手段１３は、Ｘ線検出器
９によって検出されたＸ線の透過量に応じた電気信号に
基づいて被検査物２中に異物が混入している否かを判別
し、この判別結果から良品又は不良品を示す選別信号を
外部出力する。また同時に、Ｘ線曝射時に得られる被検
査物２の画像からＸ線透過量がしきい値以上の部分を気
泡と判別し、この気泡と判別した部分の面積を算出し、
その合計値が基準値以上のときに不良品を示す選別信号
を外部出力する。そして、上記検査を終えた被検査物２
は、制御手段１３から出力される異物検査および気泡検
査の選別信号に応じて良品と不良品とに選別される。In the X-ray foreign matter detection device 1 configured as described above, when the inspection object 2 is carried in from the entrance 3a of the belt conveyor 3, the X-ray foreign substance detection device 1
X-rays are emitted from the ray generator 8. X-rays that pass through the inspection object 2 with the X-ray exposure are detected by the X-ray detector 9. Then, the control means 13 determines whether or not a foreign substance has entered the inspection object 2 based on an electric signal corresponding to the amount of transmission of the X-rays detected by the X-ray detector 9, and this determination result Output a selection signal indicating a non-defective or defective product. At the same time, from the image of the inspection object 2 obtained at the time of X-ray irradiation, a portion where the X-ray transmission amount is equal to or more than the threshold value is determined as a bubble, and the area of the portion determined as the bubble is calculated
When the total value is equal to or larger than the reference value, a selection signal indicating a defective product is output to the outside. Then, the inspection object 2 that has completed the inspection
Are sorted into non-defective products and defective products in accordance with a selection signal for foreign substance inspection and bubble inspection output from the control means 13.
【００２５】このように、本例のＸ線異物検出装置１で
は、被検査物２にＸ線を曝射したときに、Ｘ線透過量が
予め設定されたしきい値以上の部分を気泡を判別し、こ
の気泡と判別された面積を算出し、算出された面積の合
計値が基準面積以上のときに、その被検査物２を不良品
と自動判定している。また、上記算出された面積の合計
値が基準面積以内であっても、被検査物２に異物が混入
されていれば、その被検査物２を不良品と判定してい
る。As described above, in the X-ray foreign matter detection device 1 of this embodiment, when the inspection object 2 is irradiated with X-rays, the portion where the X-ray transmission amount is equal to or more than the predetermined threshold value is removed. The inspection object 2 is automatically determined to be defective when the total area of the calculated areas is equal to or larger than the reference area. Further, even if the total value of the calculated areas is within the reference area, if the inspection object 2 contains foreign matter, the inspection object 2 is determined to be defective.
【００２６】したがって、本例のＸ線異物検出装置１に
よれば、被検査物２の異物混入の検査と同時に、全ての
被検査物２の気泡量を検査してその良否を判定すること
ができる。そして、全ての被検査物２の気泡検査が行え
るので、従来に比べて検査の信頼性も向上する。しか
も、気泡検査が異物検査と同時に行えるので、手間と時
間をかけずに全ての被検査物の検査を行うことができ
る。Therefore, according to the X-ray foreign matter detection apparatus 1 of this embodiment, it is possible to inspect the amount of air bubbles in all the inspected objects 2 and judge the quality of the inspected objects 2 at the same time as the inspection of the inspected object 2 for foreign matter contamination. it can. In addition, since the bubble inspection of all the inspection objects 2 can be performed, the reliability of the inspection is improved as compared with the related art. Moreover, since the bubble inspection can be performed at the same time as the foreign substance inspection, all the inspection objects can be inspected without much trouble and time.
【００２７】ところで、本例のＸ線異物検出装置１で
は、被検査物２の先端が検出されてから後端が検出され
るまでのＸ線透過量から気泡の有無を判別しているが、
一般にレトルト製品では密封された袋の中心に気泡が寄
ってくるという性質を有している。そこで、この性質を
利用し、被検査物２の中心部分におけるＸ線透過量から
気泡の有無を判別するようにしてもよい。そして、気泡
と判別された部分の合計面積が基準面積以上のときに、
その被検査物を不良品と自動判別すれば、気泡検査に要
する処理時間の短縮が図れる。By the way, in the X-ray foreign matter detection device 1 of this embodiment, the presence or absence of air bubbles is determined from the amount of X-ray transmission from when the front end of the inspection object 2 is detected to when the rear end is detected.
Generally, retort products have the property that air bubbles come to the center of a sealed bag. Therefore, by utilizing this property, the presence or absence of bubbles may be determined from the amount of X-ray transmission at the center of the inspection object 2. Then, when the total area of the portions determined to be bubbles is equal to or larger than the reference area,
If the inspection object is automatically determined to be defective, the processing time required for bubble inspection can be reduced.
【００２８】[0028]
【発明の効果】以上の説明で明らかなように、本発明に
よれば、被検査物の異物混入の検査と同時に、全ての被
検査物の気泡量を検査してその良否を判定することがで
きる。そして、全ての被検査物の気泡検査が行えるの
で、従来に比べて検査の信頼性も向上する。しかも、気
泡検査が異物検査と同時に行えるので、手間と時間をか
けずに全ての被検査物の検査を行うことができる。As is apparent from the above description, according to the present invention, it is possible to inspect the amount of air bubbles in all the inspected objects and judge the quality of the inspected objects at the same time as inspecting the inspected objects for contamination. it can. In addition, since the bubble inspection can be performed for all the inspection objects, the reliability of the inspection is improved as compared with the related art. Moreover, since the bubble inspection can be performed at the same time as the foreign substance inspection, all the inspection objects can be inspected without much trouble and time.
【図１】本発明によるＸ線異物検出装置の全体構成を示
すブロック図FIG. 1 is a block diagram showing an overall configuration of an X-ray foreign matter detection device according to the present invention.
【図２】本発明によるＸ線異物検出装置の外観を示す斜
視図FIG. 2 is a perspective view showing an external appearance of an X-ray foreign matter detection device according to the present invention.
【図３】被検査物の一例としてのレトルト製品の概略斜
視図FIG. 3 is a schematic perspective view of a retort product as an example of an inspection object.
１…Ｘ線異物検出装置、２…被検査物、１３…制御手
段、１３ａ…気泡有無判別手段、１３ｂ…面積算出手
段、１３ｃ…良否判定手段、２１…気泡。DESCRIPTION OF SYMBOLS 1 ... X-ray foreign substance detection apparatus, 2 ... inspection object, 13 ... control means, 13a ... bubble presence / absence determination means, 13b ... area calculation means, 13c ... pass / fail determination means, 21 ... bubbles.
Claims (1)
線の曝射に伴って前記被検査物を透過してくるＸ線の透
過量から前記被検査物中の異物の有無を検査するＸ線異
物検出装置（１）において、 前記被検査物にＸ線を曝射したときにＸ線透過量が予め
設定されたしきい値以上の部分を気泡と判別し、この気
泡と判別された部分の面積を算出し、この算出された面
積の合計値が予め設定された基準面積以上のときに前記
被検査物を不良品と判定する手段（１３）を備えたこと
を特徴とするＸ線異物検出装置。An X-ray is irradiated to an object to be inspected (2).
An X-ray foreign matter detection device (1) for inspecting the presence or absence of foreign matter in the inspection object from the amount of X-ray transmitted through the inspection object along with the irradiation of the X-ray, When the X-rays are irradiated, the portion where the X-ray transmission amount is equal to or greater than a predetermined threshold value is determined as a bubble, the area of the portion determined to be a bubble is calculated, and the total value of the calculated areas is calculated as An X-ray foreign matter detection device comprising: means (13) for determining the object to be inspected as a defective when the reference area is equal to or larger than a predetermined reference area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000361413A JP2002168805A (en) | 2000-11-28 | 2000-11-28 | X-ray foreign matter detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000361413A JP2002168805A (en) | 2000-11-28 | 2000-11-28 | X-ray foreign matter detector |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006290114A Division JP4156645B2 (en) | 2006-10-25 | 2006-10-25 | X-ray foreign object detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002168805A true JP2002168805A (en) | 2002-06-14 |
Family
ID=18832850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000361413A Pending JP2002168805A (en) | 2000-11-28 | 2000-11-28 | X-ray foreign matter detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002168805A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006524810A (en) * | 2003-04-25 | 2006-11-02 | シーエックスアール リミテッド | X-ray monitoring |
| JP2010125465A (en) * | 2008-11-26 | 2010-06-10 | Toyota Central R&D Labs Inc | Casting analyzer and casting analyzing method |
| JP2011145162A (en) * | 2010-01-14 | 2011-07-28 | Japan Atomic Energy Agency | X-ray detection method of fine particles in fluid |
| JP2013064613A (en) * | 2011-09-15 | 2013-04-11 | Ishida Co Ltd | X-ray inspection apparatus |
| US8837669B2 (en) | 2003-04-25 | 2014-09-16 | Rapiscan Systems, Inc. | X-ray scanning system |
| US8885794B2 (en) | 2003-04-25 | 2014-11-11 | Rapiscan Systems, Inc. | X-ray tomographic inspection system for the identification of specific target items |
| US9020095B2 (en) | 2003-04-25 | 2015-04-28 | Rapiscan Systems, Inc. | X-ray scanners |
| US9048061B2 (en) | 2005-12-16 | 2015-06-02 | Rapiscan Systems, Inc. | X-ray scanners and X-ray sources therefor |
| US9113839B2 (en) | 2003-04-25 | 2015-08-25 | Rapiscon Systems, Inc. | X-ray inspection system and method |
| US10295483B2 (en) | 2005-12-16 | 2019-05-21 | Rapiscan Systems, Inc. | Data collection, processing and storage systems for X-ray tomographic images |
| CN109983337A (en) * | 2016-11-14 | 2019-07-05 | 马瑞奥冰岛有限责任公司 | System and method for processing meat piece |
| US10591424B2 (en) | 2003-04-25 | 2020-03-17 | Rapiscan Systems, Inc. | X-ray tomographic inspection systems for the identification of specific target items |
| JP2021124461A (en) * | 2020-02-07 | 2021-08-30 | 株式会社イシダ | X-ray inspection device |
| CN114236062A (en) * | 2022-01-10 | 2022-03-25 | 广州膳智科技有限公司 | Food safety detection device based on big data |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6120845A (en) * | 1984-07-09 | 1986-01-29 | Toshiba Corp | Measuring device for singular part area frequency |
| JPH04130254A (en) * | 1990-09-20 | 1992-05-01 | Hitachi Medical Corp | Method and apparatus for detecting bubble in liquid sealed container |
| JPH10148622A (en) * | 1996-11-18 | 1998-06-02 | Kawasaki Steel Corp | Method and device for automatically judging accept/ reject of welded part radiation transmission test image |
| JPH11514435A (en) * | 1995-09-27 | 1999-12-07 | サーメディクス ディテクション インコーポレイテッド | Container filling level and pressurization inspection using multi-dimensional images |
-
2000
- 2000-11-28 JP JP2000361413A patent/JP2002168805A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6120845A (en) * | 1984-07-09 | 1986-01-29 | Toshiba Corp | Measuring device for singular part area frequency |
| JPH04130254A (en) * | 1990-09-20 | 1992-05-01 | Hitachi Medical Corp | Method and apparatus for detecting bubble in liquid sealed container |
| JPH11514435A (en) * | 1995-09-27 | 1999-12-07 | サーメディクス ディテクション インコーポレイテッド | Container filling level and pressurization inspection using multi-dimensional images |
| JPH10148622A (en) * | 1996-11-18 | 1998-06-02 | Kawasaki Steel Corp | Method and device for automatically judging accept/ reject of welded part radiation transmission test image |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9675306B2 (en) | 2003-04-25 | 2017-06-13 | Rapiscan Systems, Inc. | X-ray scanning system |
| US10591424B2 (en) | 2003-04-25 | 2020-03-17 | Rapiscan Systems, Inc. | X-ray tomographic inspection systems for the identification of specific target items |
| US9618648B2 (en) | 2003-04-25 | 2017-04-11 | Rapiscan Systems, Inc. | X-ray scanners |
| US11796711B2 (en) | 2003-04-25 | 2023-10-24 | Rapiscan Systems, Inc. | Modular CT scanning system |
| US8837669B2 (en) | 2003-04-25 | 2014-09-16 | Rapiscan Systems, Inc. | X-ray scanning system |
| US8885794B2 (en) | 2003-04-25 | 2014-11-11 | Rapiscan Systems, Inc. | X-ray tomographic inspection system for the identification of specific target items |
| US9020095B2 (en) | 2003-04-25 | 2015-04-28 | Rapiscan Systems, Inc. | X-ray scanners |
| US10901112B2 (en) | 2003-04-25 | 2021-01-26 | Rapiscan Systems, Inc. | X-ray scanning system with stationary x-ray sources |
| US9113839B2 (en) | 2003-04-25 | 2015-08-25 | Rapiscon Systems, Inc. | X-ray inspection system and method |
| US9442082B2 (en) | 2003-04-25 | 2016-09-13 | Rapiscan Systems, Inc. | X-ray inspection system and method |
| JP2006524810A (en) * | 2003-04-25 | 2006-11-02 | シーエックスアール リミテッド | X-ray monitoring |
| US10175381B2 (en) | 2003-04-25 | 2019-01-08 | Rapiscan Systems, Inc. | X-ray scanners having source points with less than a predefined variation in brightness |
| US10295483B2 (en) | 2005-12-16 | 2019-05-21 | Rapiscan Systems, Inc. | Data collection, processing and storage systems for X-ray tomographic images |
| US9048061B2 (en) | 2005-12-16 | 2015-06-02 | Rapiscan Systems, Inc. | X-ray scanners and X-ray sources therefor |
| US10976271B2 (en) | 2005-12-16 | 2021-04-13 | Rapiscan Systems, Inc. | Stationary tomographic X-ray imaging systems for automatically sorting objects based on generated tomographic images |
| US9638646B2 (en) | 2005-12-16 | 2017-05-02 | Rapiscan Systems, Inc. | X-ray scanners and X-ray sources therefor |
| JP2010125465A (en) * | 2008-11-26 | 2010-06-10 | Toyota Central R&D Labs Inc | Casting analyzer and casting analyzing method |
| JP2011145162A (en) * | 2010-01-14 | 2011-07-28 | Japan Atomic Energy Agency | X-ray detection method of fine particles in fluid |
| JP2013064613A (en) * | 2011-09-15 | 2013-04-11 | Ishida Co Ltd | X-ray inspection apparatus |
| US11533920B2 (en) | 2016-11-14 | 2022-12-27 | Marel Iceland Ehf | System and a method for processing meat pieces |
| CN109983337A (en) * | 2016-11-14 | 2019-07-05 | 马瑞奥冰岛有限责任公司 | System and method for processing meat piece |
| JP7393793B2 (en) | 2020-02-07 | 2023-12-07 | 株式会社イシダ | X-ray inspection equipment |
| JP2021124461A (en) * | 2020-02-07 | 2021-08-30 | 株式会社イシダ | X-ray inspection device |
| CN114236062A (en) * | 2022-01-10 | 2022-03-25 | 广州膳智科技有限公司 | Food safety detection device based on big data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002168805A (en) | X-ray foreign matter detector | |
| US20080298547A1 (en) | X-ray inspection apparatus | |
| JP3828781B2 (en) | X-ray foreign object detection device | |
| JP3756751B2 (en) | X-ray foreign object detection device | |
| JP3860154B2 (en) | X-ray inspection equipment | |
| JP4530523B2 (en) | X-ray foreign object detection device | |
| JP3888623B2 (en) | X-ray foreign matter detection method and X-ray foreign matter detection device | |
| JP2006329906A (en) | X-ray inspection device | |
| JP2002310944A (en) | Radiation inspection system | |
| JP2009085627A (en) | X-ray line sensor module and x-ray foreign matter inspection device | |
| KR20020081073A (en) | Radiation inspection apparatus and radiation inspection method | |
| JP2005127962A (en) | X-ray inspection system | |
| JP4460139B2 (en) | X-ray foreign object detection device | |
| JP4156645B2 (en) | X-ray foreign object detection device | |
| JP3917019B2 (en) | X-ray foreign object detection device | |
| JP2004020297A (en) | Inspection device for inspecting foreign matter by x-ray | |
| JP4460140B2 (en) | X-ray foreign object detection device | |
| JP2009080030A (en) | X-ray inspection device | |
| JP4170366B2 (en) | X-ray inspection equipment | |
| JPH1026592A (en) | X-ray type foreign matter inspecting apparatus | |
| JP3955559B2 (en) | X-ray inspection equipment | |
| JP3860144B2 (en) | X-ray inspection equipment | |
| JP3715528B2 (en) | X-ray foreign object detection device and method for detecting movement stop of inspection object in the device | |
| JPWO2017159855A1 (en) | X-ray inspection equipment | |
| JP2004028685A (en) | X-ray foreign matter detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050316 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050628 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050815 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060221 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060403 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20060912 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061012 |
|
| A911 | Transfer of reconsideration by examiner before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20061120 |
|
| A912 | Removal of reconsideration by examiner before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20070112 |