JPH063290A - Detecting method for defectively formed can - Google Patents

Detecting method for defectively formed can

Info

Publication number
JPH063290A
JPH063290A JP4184471A JP18447192A JPH063290A JP H063290 A JPH063290 A JP H063290A JP 4184471 A JP4184471 A JP 4184471A JP 18447192 A JP18447192 A JP 18447192A JP H063290 A JPH063290 A JP H063290A
Authority
JP
Japan
Prior art keywords
inspected
image
parameter
opening
defective molding
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.)
Withdrawn
Application number
JP4184471A
Other languages
Japanese (ja)
Inventor
Minoru Maeda
稔 前田
Masaki Komatsu
正樹 小松
Masayuki Masuda
正行 増田
Kazumi Aoki
和美 青木
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.)
Nippon Steel Corp
Nippon Steel Chemical and Materials Co Ltd
Original Assignee
Nippon Steel Corp
Nippon Steel Chemical 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 Nippon Steel Corp, Nippon Steel Chemical Co Ltd filed Critical Nippon Steel Corp
Priority to JP4184471A priority Critical patent/JPH063290A/en
Publication of JPH063290A publication Critical patent/JPH063290A/en
Withdrawn legal-status Critical Current

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  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To efficiently detect a defectively formed can by photographing a can opening part, and binarizing the image to detect the form of the can opening part. CONSTITUTION:The image data photographed by a CCD camera 12 is binarized on the basis of a determined threshold by a binarizing means 26. A form parameter calculating means 30 operates a parameter properly showing the form of the opening part 20 of a corresponding inspected can 18 on the basis of the binarized image. A comparing means 32 compares the opening part form parameter of the inspected can 18 with a standard parameter, and outputs the difference value to a judging means 34. The judging means 34 judges whether the inspected can 18 is a normal can or a defectively formed can on the basis of whether the difference value is within an allowable range or not. When the can 18 is judged a defectively formed can, an instruction is given to a removing device 16 arranged in the side of a conveyor belt in the carrying directional front of the inspected can 18, and the defectively formed can is removed from the line.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は不良缶判定装置、特に被
検査缶の成形状態の適否を判定する不良缶判定装置に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a defective can judging device, and more particularly to a defective can judging device for judging whether or not a molded state of an inspected can is proper.

【0002】[0002]

【従来の技術】通常用いられる飲料缶、食品缶等にはい
わゆるツーピース缶、或いはスリーピース缶等があり、
例えばツーピース缶のうちのDI缶胴は、通常板材を打
ち抜いた後絞って浅底のカップ状にするカップ形成工
程、該カップを再絞りした後その円筒部分を延展するD
I工程、延展された缶胴の上部部分を一定形状とするた
めその端部を切取り成形するトリム工程等を経て製造さ
れる。
2. Description of the Related Art Beverage cans, food cans and the like that are commonly used include so-called two-piece cans and three-piece cans.
For example, a DI can body of a two-piece can is usually formed by punching a plate material and then squeezing it to form a shallow cup shape. After re-squeezing the cup, the cylindrical portion is extended.
It is manufactured through a process I, a trimming process in which an end portion of the extended can body is cut and formed in order to make the upper portion of the can body have a constant shape.

【0003】しかし、この製造工程中には、延展不良に
より缶開口部の一部分に凹部を生じるストリップ不良、
トリム工程で缶開口部に切除クズを残すヒゲ缶、延展工
程でジャムを起こしたジャム缶、缶開口部エッジが潰さ
れシワ状となったシワ缶等が発生する。これらは缶とし
て不良なばかりでなく、後の印刷工程等でジャムの原因
となるため、予め取り除かなければならない。
However, during this manufacturing process, a strip defect that causes a recess in a portion of the can opening due to a spread defect,
There are beard cans that leave cutting scraps in the can opening in the trimming process, jammed cans that have jammed in the spreading process, and wrinkled cans in which the edges of the can opening are wrinkled. These are not only bad as cans, but also cause jams in the subsequent printing process and the like, so they must be removed in advance.

【0004】[0004]

【発明が解決しようとする課題】ところが、これら不良
缶を自動的に除去することは従来あまり顧みられておら
ず、専ら目視ないし後の工程での不良缶検査に頼ってい
た。しかしながら目視に頼る除去では作業員の負担が大
きく、又成形不良缶が見逃され、後の印刷工程などでジ
ャムを起こした場合などにはその復旧に時間がかかり、
作業能率が大幅に低下するという課題があった。
However, automatic removal of these defective cans has not been considered so much in the past, and it relied solely on visual inspection or defective can inspection in a later step. However, removal by visual inspection places a heavy burden on the operator, and if a defective molded can is overlooked and a jam occurs in the subsequent printing process, it takes time to restore it.
There was a problem that work efficiency was significantly reduced.

【0005】本発明は前記従来技術の課題に鑑みなされ
たものであり、その目的は適切に不良缶を検出すること
のできる成形不良缶検出装置を提供することにある。
The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to provide a defective molding can detecting device which can appropriately detect defective cans.

【0006】[0006]

【課題を解決するための手段】前記目的を達成するため
に本発明にかかる成形不良缶検出装置は、被検査缶開口
部に光を照射する照明手段と、缶上部より被検査缶開口
部の撮像を行う撮像手段と、前記撮像手段により得られ
た缶像をその明暗により二値化する二値化手段と、前記
二値化結果に基づき被検査缶開口部形状と基準缶開口部
形状の比較を行う比較手段と、前記比較結果に基づき被
検査缶の成形状態の適否を判定する判定手段と、を備え
たことを特徴とする。
In order to achieve the above object, a defective molding can detecting device according to the present invention comprises an illuminating means for irradiating the opening of the can to be inspected with light, and an opening of the can to be inspected from the top of the can. An image pickup means for picking up an image, a binarizing means for binarizing the can image obtained by the image pickup means according to its brightness and darkness, and a can opening shape and a reference can opening shape to be inspected based on the binarization result. It is characterized by comprising a comparing means for making a comparison and a judging means for judging whether or not the molding state of the inspected can is appropriate based on the comparison result.

【0007】[0007]

【作用】本発明者らが成形不良缶の検出方法について種
々検討したところ、缶の不良部位は区々であるが、その
殆どの場合、缶開口部に変形を来していることを見出し
た。そこで、本発明者らは缶開口部の撮影を行い、その
映像を二値化して缶開口部の形状を検出することによ
り、成形不良缶の効率的な検出を行うこととしたもので
ある。
The inventors of the present invention have conducted various studies on the method of detecting a defectively molded can, and found that the defective parts of the can are various, but in most of the cases, the can opening is deformed. . Therefore, the present inventors have taken an image of the can opening and binarized the image to detect the shape of the can opening to efficiently detect a defectively formed can.

【0008】[0008]

【実施例】以下、図面に基づき本発明の好適な実施例を
説明する。図1には本発明の一実施例にかかる成形不良
缶検出装置の概略構成が示されている。同図において、
成形不良缶検出装置10は撮像手段としてのCCDカメ
ラ12と、データ処理を行う画像処理コンピュータ14
とよりなる。そして、成形不良缶検出装置10の出力は
不良缶除去装置16に送られ、不良缶の除去が行われ
る。すなわち、図示しないコンベヤベルト上に載置され
て搬送されて来る被検査缶18の上部の開口部20に対
向する位置には照明手段としてのリング状ライト22が
配置され、更にライト22中央上部には広角レンズを有
したCCDカメラ12が配置される。従って、CCDカ
メラ12は被検査缶18の内側から開口部20の形状を
撮影することとなる。この撮影は、図示しない光電セン
サの如き缶検出手段からの缶検出信号に基づき、CCD
カメラ12にスタート信号を送ることにより開始する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a defective molding can detection device according to an embodiment of the present invention. In the figure,
A defective molding can detection device 10 includes a CCD camera 12 as an image pickup means, and an image processing computer 14 for data processing.
And consists of. Then, the output of the defective molding can detector 10 is sent to the defective can removing device 16 to remove the defective can. That is, a ring-shaped light 22 as an illuminating means is arranged at a position facing the opening 20 in the upper portion of the inspected can 18 placed on a conveyor belt (not shown) and conveyed, and further in the upper center of the light 22. Is provided with a CCD camera 12 having a wide-angle lens. Therefore, the CCD camera 12 photographs the shape of the opening 20 from the inside of the inspected can 18. This photographing is performed on the basis of a can detection signal from a can detecting means such as a photoelectric sensor (not shown) based on the CCD.
It starts by sending a start signal to the camera 12.

【0009】一方、コンピュータ14は二値化手段2
6、形状パラメータ算出手段30、比較手段32、判定
手段34よりなる。そして、CCDカメラ12により撮
影された画像データは二値化手段26により所定のスレ
ッショルドレベルに基づき二値化される。そして、形状
パラメータ算出手段30は、前記二値化画像に基づき対
応する被検査缶18の開口部20の形状を適切に表すパ
ラメータを演算する。
On the other hand, the computer 14 uses the binarizing means 2
6, shape parameter calculation means 30, comparison means 32, and determination means 34. Then, the image data taken by the CCD camera 12 is binarized by the binarizing means 26 based on a predetermined threshold level. Then, the shape parameter calculation means 30 calculates a parameter that appropriately represents the shape of the corresponding opening 20 of the inspected can 18 based on the binarized image.

【0010】比較手段32は被検査缶の開口部形状パラ
メータ(被検査缶形状)と基準パラメータ(基準缶形
状)の比較を行い、その差値を判定手段34に出力す
る。判定手段34は前記差値が許容範囲にあるか否かに
基づき、当該被検査缶が正常な缶であるか或いは成形不
良缶であるかを判定する。判定手段34により成形不良
缶であると判断された場合には、被検査缶18の搬送方
向前方のコンベヤベルト側方に配置した除去装置16に
指示を与え、ラインから該成形不良缶の除去を行う。以
上のようにして、本実施例にかかる成形不良缶検出装置
によれば、缶開口部の画像を処理することにより成形不
良缶の判別を行うことができる。
The comparing means 32 compares the opening shape parameter of the inspected can (inspected can shape) with the reference parameter (reference can shape) and outputs the difference value to the determining means 34. The determining means 34 determines whether the inspected can is a normal can or a defectively molded can based on whether or not the difference value is within an allowable range. If the determining means 34 determines that the defective molded can is a defective can, an instruction is given to the removing device 16 arranged on the side of the conveyor belt in front of the inspected can 18 in the conveying direction to remove the defective molded can from the line. To do. As described above, the defective molding can detecting device according to the present embodiment can determine the defective molding can by processing the image of the can opening.

【0011】図2には本実施例にかかる成形不良缶検出
装置を用いた画像処理状況が示されている。尚、同図に
おいて梨地状の部分は暗部である。同図(A)に示す画
像はCCDカメラ12により撮像された結果であり、被
検査缶はストリップ不良により右下部分に凹部が形成さ
れている。この画像を二値化手段26で二値化すること
により、同図(B)に示すような二値化画像を得ること
ができる。同図においては一定の水平ライン間隔毎に図
中X軸方向に二値化画像を表示している。このスリット
状の窓についてのみ、以下のパラメータ算出を行う。な
お、同図(C)は二値化画像(B)中のスリット状の窓
の缶内面対応部分についてX軸に平行な線(ラベル3
0)が設定される。図2(B)ないし(C)はそれぞれ
ストリップ不良による凹部に対応して開口部20の変形
が明確に示されており、該変形をパラメータにより検出
する。
FIG. 2 shows an image processing situation using the defective molding can detecting device according to the present embodiment. In the figure, the satin-like part is a dark part. The image shown in FIG. 3A is a result of being picked up by the CCD camera 12, and the inspected can has a recessed portion in the lower right portion due to strip failure. By binarizing this image by the binarizing means 26, it is possible to obtain a binarized image as shown in FIG. In the figure, a binarized image is displayed in the X-axis direction in the figure at regular horizontal line intervals. The following parameters are calculated only for this slit-shaped window. It should be noted that FIG. 7C shows a line parallel to the X-axis (label 3) for the portion of the slit-shaped window corresponding to the inner surface of the can in the binarized image (B).
0) is set. 2B to 2C clearly show the deformation of the opening 20 corresponding to the recess due to the strip defect, and the deformation is detected by the parameter.

【0012】本実施例において缶形状を表すパラメータ
として、ラベル数、ラベルの最大長さ、中心座標ずれ、
真円との差を用いている。すなわち、図3に示すように
ラベル30の本数は図中Y軸方向の直径をほぼ示すこと
となり、このラベル本数が規定範囲より外れることはY
軸方向の直径が一定範囲にないことを意味する。また、
ラベル30の最大長さは、実質的に缶開口部のX軸方向
の直径となり、このラベルの最大長さが規定範囲より外
れることはX軸方向の直径が一定範囲にないことを意味
する。また、各ラベル30の中心座標は缶開口部を形成
する円が真円であれば一直線上に並ぶが、缶開口部を形
成する円が歪んでいればそれぞれの中心座標32が直線
からずれて位置される。従って、各ラベル30の中心の
X座標を比較することにより、X軸方向の対象性を検査
することができる。
In this embodiment, as the parameters representing the can shape, the number of labels, the maximum label length, the center coordinate deviation,
The difference from the true circle is used. That is, as shown in FIG. 3, the number of labels 30 almost indicates the diameter in the Y-axis direction in the figure, and the number of labels deviates from the specified range by Y.
It means that the diameter in the axial direction is not within a certain range. Also,
The maximum length of the label 30 is substantially the diameter of the can opening in the X-axis direction, and the fact that the maximum length of the label is out of the specified range means that the diameter in the X-axis direction is not within a certain range. Further, the center coordinates of the respective labels 30 are aligned on a straight line if the circle forming the can opening is a perfect circle, but if the circle forming the can opening is distorted, the respective center coordinates 32 deviate from the straight line. Is located. Therefore, by comparing the X coordinate of the center of each label 30, the symmetry in the X axis direction can be inspected.

【0013】さらに、本実施例においては真円との差を
重要なパラメータの一つとしている。すなわち、図3
(B)に示すように、最大長のラベル30の長さの1/
2を当該被検査缶開口部が構成するであろう真円34の
半径rと仮定する。次に、最上部のラベルの長さと前記
仮定半径rより、最上部ラベル301 から中心Cまでの
距離をl1 を算出する。次に、最下部のラベル3030
長さと前記仮定半径rより、最下部のラベルから中心C
までの距離l2 を算出する。次に、距離l1 、l2 の和
を求め、最上部のラベル301 と最下部のラベル3030
の間の距離l3 を算出する。次に、ラベル間距離l3
びラベル数(30本)より各ラベル30の間隔Dを算出
する。次に仮定半径rとラベル間隔Dより、各ラベルの
真円時の長さL1 、L2 ・・・を算出する。そして、実
際の各ラベルの長さL1'、L2'・・・の長さの差d1
2 ・・・が、各ラベル毎の真円との長さの差となる。
以上のようにして得られた各ラベル毎の差d1 、d2
・・の二乗平均ないし絶対値平均を算出し、真円との差
の判別用パラメータとしている。
Further, in this embodiment, the difference from the perfect circle is one of the important parameters. That is, FIG.
As shown in (B), 1 / the length of the maximum length label 30
2 is assumed to be the radius r of the perfect circle 34 that the inspected can opening will constitute. Next, the distance l 1 from the top label 30 1 to the center C is calculated from the length of the top label and the assumed radius r. Next, based on the length of the label 30 30 at the bottom and the assumed radius r, the center C is determined from the label at the bottom.
Calculate the distance l 2 to. Next, the sum of the distances l 1 and l 2 is obtained, and the uppermost label 30 1 and the lowermost label 30 30
The distance l 3 between is calculated. Next, the distance D between the labels 30 is calculated from the inter-label distance l 3 and the number of labels (30). Next, from the assumed radius r and the label interval D, the lengths L 1 , L 2, ... Then, the difference d 1 between the lengths L 1 ′, L 2 ′, ... Of the actual labels,
d 2 ... Is the difference in length from the true circle for each label.
The differences d 1 and d 2 for each label obtained as described above
.. The mean square or mean absolute value of is calculated and used as the parameter for discriminating the difference from the true circle.

【0014】図4〜図8には実際に本実施例にかかる成
形不良缶検出装置を用いた缶検査例が示されている。図
4は正常缶を示し、図5はストリップ不良缶を示す。図
5に示すストリップ不良缶では影50を有するため、中
心座標ずれないし真円との差のパラメータによって検出
可能である。
FIGS. 4 to 8 show an example of can inspection actually using the defective molding can detecting device according to this embodiment. FIG. 4 shows a normal can, and FIG. 5 shows a defective strip can. Since the defective strip can shown in FIG. 5 has the shadow 50, it can be detected by the parameter of the center coordinate shift or the difference from the true circle.

【0015】図6にはジャム缶を示しており、缶開口部
がいびつとなっているためラベル数、最大長さ、中心座
標ずれないし真円との差のパラメータによって検出可能
である。図7はヒゲ缶を示しており、ヒゲ52の検出に
より中心座標ずれないし真円との差のパラメータによっ
て検出可能である。図8にはシワ缶を示しており、シワ
部分54がいびつとなっているため、特に中心座標ずれ
により検出可能である。
FIG. 6 shows a jam can, and since the can opening is distorted, it can be detected by parameters such as the number of labels, the maximum length, the deviation of the center coordinate, or the difference from the true circle. FIG. 7 shows a mustache, which can be detected by the parameter of the center coordinate shift or the difference from the perfect circle by detecting the beard 52. FIG. 8 shows a wrinkle can, and since the wrinkle portion 54 is distorted, it can be detected especially by the deviation of the center coordinates.

【0016】以上のように本実施例にかかる成形不良缶
検出装置を用いた場合には、各種の成形不良缶を缶開口
形状の画像処理により検出することが可能となる。な
お、前記実施例において示した画像処理方法或いはパラ
メータの設定方法等は他の方法によることも可能であ
り、本発明はこれに限定されるものではない。
As described above, when the defective molding can detecting device according to this embodiment is used, various defective molding cans can be detected by image processing of the can opening shape. Note that the image processing method, the parameter setting method, and the like shown in the above-described embodiment may be based on other methods, and the present invention is not limited to this.

【0017】[0017]

【発明の効果】以上説明したように本発明にかかる成形
不良缶検出装置によれば、缶開口部形状の画像処理によ
り各種成形不良缶を検出することが可能となる。
As described above, according to the defective molding can detecting device of the present invention, various defective molding cans can be detected by image processing of the shape of the can opening.

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

【図1】本発明の一実施例にかかる成形不良缶検出装置
の概略構成の説明図である。
FIG. 1 is an explanatory diagram of a schematic configuration of a defective molding can detection device according to an embodiment of the present invention.

【図2】図1に示した装置による画像処理工程の説明図
である。
FIG. 2 is an explanatory diagram of an image processing step by the apparatus shown in FIG.

【図3】図1に示した装置によるパラメータ演算工程の
説明図である。
3 is an explanatory diagram of a parameter calculation process by the device shown in FIG.

【図4】図1に示した装置による検査状態の説明図であ
る。
4 is an explanatory diagram of an inspection state by the apparatus shown in FIG.

【図5】同上[FIG. 5] Same as above

【図6】同上[FIG. 6] Same as above

【図7】同上[FIG. 7] Same as above

【図8】同上[FIG. 8] Same as above

【符号の説明】[Explanation of symbols]

10 成形不良缶検出装置 12 撮像手段 18 被検査缶 20 開口部 22 リング状ライト(照明手段) 26 二値化手段 32 比較手段 34 判定手段 10 Malformed Can Detecting Device 12 Imaging Unit 18 Inspected Can 20 Opening 22 Ring Light (Illuminating Means) 26 Binarizing Means 32 Comparing Means 34 Judging Means

───────────────────────────────────────────────────── フロントページの続き (72)発明者 増田 正行 神奈川県相模原市大島3194−4 大和製罐 株式会社内 (72)発明者 青木 和美 東京都中央区銀座5丁目13番16号 新日鐵 化学株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Masayuki Masuda Inventor Masayuki Masuda 3194-4 Oshima, Sagamihara City, Kanagawa Yamato Seikan Co., Ltd. (72) Kazumi Aoki 5-13-16 Ginza, Chuo-ku, Tokyo Nippon Steel Chemical Within the corporation

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 被検査缶開口部に光を照射する照明手段
と、 缶上部より被検査缶開口部の撮像を行う撮像手段と、 前記撮像手段により得られた缶像をその明暗により二値
化する二値化手段と、 前記二値化結果に基づき被検査缶形状と基準缶形状の比
較を行う比較手段と、 前記比較結果に基づき被検査缶の成形状態の適否を判定
する判定手段と、を備えたことを特徴とする成形不良缶
検出装置。
1. An illuminating means for irradiating a can opening to be inspected with light, an image pickup means for picking up an image of the can opening to be inspected from an upper portion of the can, and a can image obtained by the image pickup means is binary depending on its brightness. Binarizing means for converting, a comparing means for comparing the inspected can shape and the reference can shape based on the binarizing result, and a determining means for determining the suitability of the molding state of the inspected can based on the comparison result. An apparatus for detecting a defective molding can, comprising:
【請求項2】 請求項1記載の装置において、被検査缶
を搬送させる駆動手段と前記被検査缶を検出する缶検出
手段とを備え、前記撮像手段は、搬送されて来る前記被
検査缶を検出した缶検出手段からの缶検出信号に基づき
撮像を開始することを特徴とする成形不良缶検出装置。
2. The apparatus according to claim 1, further comprising a driving means for conveying the inspected can and a can detecting means for detecting the inspected can, wherein the image pickup means detects the conveyed inspected can. A defective molding can detection device, which starts imaging based on the detected can detection signal from the can detection means.
【請求項3】 請求項1又は2記載の装置において、前
記比較手段は前記被検査缶に前記照明手段からの光によ
って形成される開口部の画像の縦方向の長さをパラメー
タとして比較することを特徴とする成形不良缶検出装
置。
3. The apparatus according to claim 1, wherein the comparing means compares the length of the image of the opening formed in the can with light from the illuminating means in the vertical direction as a parameter. A defective molding can detection device.
【請求項4】 請求項1〜3のいずれかに記載の装置に
おいて、前記比較手段は前記被検査缶に前記照明手段か
らの光によって形成される開口部の画像の横方向の長さ
をパラメータとして比較することを特徴とする成形不良
缶検出装置。
4. The apparatus according to any one of claims 1 to 3, wherein the comparing means uses a lateral length of an image of an opening formed in the can to be inspected by the light from the illuminating means as a parameter. A device for detecting defective molding cans, which is characterized in that:
【請求項5】 請求項1〜4のいずれかに記載の装置に
おいて、前記比較手段は前記被検査缶に前記照明手段か
らの光によって形成される開口部の画像の横方向の長さ
の中心座標が一直線上にならんでいるか否かをパラメー
タとして比較することを特徴とする成形不良缶検出装
置。
5. The apparatus according to claim 1, wherein the comparison unit is a center of a lateral length of an image of an opening formed in the can under inspection by light from the illumination unit. A defective molding can detection device, which compares whether or not the coordinates are aligned on a straight line as a parameter.
【請求項6】 請求項1〜5のいずれかに記載の装置に
おいて、前記比較手段は前記被検査缶に前記照明手段か
らの光によって形成される開口部の画像の真円との差を
パラメータとして比較することを特徴とする成形不良缶
検出装置。
6. The apparatus according to any one of claims 1 to 5, wherein the comparison means uses a difference from a perfect circle of an image of an opening formed by the light from the illuminating means in the inspected can as a parameter. A device for detecting defective molding cans, which is characterized in that:
JP4184471A 1992-06-18 1992-06-18 Detecting method for defectively formed can Withdrawn JPH063290A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4184471A JPH063290A (en) 1992-06-18 1992-06-18 Detecting method for defectively formed can

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4184471A JPH063290A (en) 1992-06-18 1992-06-18 Detecting method for defectively formed can

Publications (1)

Publication Number Publication Date
JPH063290A true JPH063290A (en) 1994-01-11

Family

ID=16153746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4184471A Withdrawn JPH063290A (en) 1992-06-18 1992-06-18 Detecting method for defectively formed can

Country Status (1)

Country Link
JP (1) JPH063290A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013501232A (en) * 2009-08-04 2013-01-10 ボール パッケージング ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング Apparatus and method for performing surface treatment using an inspection station

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013501232A (en) * 2009-08-04 2013-01-10 ボール パッケージング ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング Apparatus and method for performing surface treatment using an inspection station
US9644938B2 (en) 2009-08-04 2017-05-09 Ball Packaging Europe Gmbh Device and method for surface processing having a test station

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