JP2008249668A - Inspection apparatus and inspection method for can seaming - Google Patents

Inspection apparatus and inspection method for can seaming Download PDF

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JP2008249668A
JP2008249668A JP2007094941A JP2007094941A JP2008249668A JP 2008249668 A JP2008249668 A JP 2008249668A JP 2007094941 A JP2007094941 A JP 2007094941A JP 2007094941 A JP2007094941 A JP 2007094941A JP 2008249668 A JP2008249668 A JP 2008249668A
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ray
axis
rotation
tightening
seaming
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Katsuya Kamitsuma
勝也 上妻
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Altemira Can Co Ltd
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Universal Can Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an inspection apparatus and an inspection method for a can seaming which accurately inspect a seaming portion of the can in the state that the can is filled with a content and an inert gas and a negative or positive pressure is internally applied. <P>SOLUTION: The inspection apparatus for the can seaming inspects the seaming portion RA by use of a tomographic image calculation means for horizontally disposing an X-ray irradiation axial line C1 for connecting an X-ray source 1 and the center of a detection plane of an X-ray detector 2 facing each other, disposing the can W in an imaging space between the X-ray source 1 and the X-ray detector 2, irradiating the can W with X rays while the can W is rotated on a vertical rotational axial line C2, and establishing a tomographic image using X-ray transmission data captured at a predetermined rotational angle. A chuck 3 holds the can W in the imaging space, and is disposed so as to incline an axial line C3 of the can W to a vertical line and superimpose the seaming portion RA on an intersection of the X-ray irradiation axial line C1 and the rotational axial line C2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は巻き締め部を検査する缶の巻き締め検査装置並びに巻き締め検査方法に関する。   The present invention relates to a can tightening inspection apparatus and a tightening inspection method for inspecting a tightening portion.

飲料などが充填される金属缶は、保存性に優れており多方面において使用されている。この金属缶は、有底円筒状の缶胴とこの缶胴の開口部を閉塞する缶蓋とを「二重巻き締め」と呼ばれる手法を用いて巻き締めし密封されて、その保存性が高められるようになっている。この巻き締めが良好に行われないと缶の気密性が損なわれ、充填飲料の品質保持に支障を来たしたり漏出を起こしたりする虞がある。このため製品検査の一つとして巻き締め不良の検査を行う必要がある。   Metal cans filled with beverages or the like are excellent in preservability and are used in many fields. This metal can is sealed with a bottomed cylindrical can body and a can lid that closes the opening of the can body by using a technique called “double-clamping” to improve the storage stability. It is supposed to be. If this tightening is not performed well, the airtightness of the can is impaired, and there is a possibility that the quality maintenance of the filled beverage may be hindered or leaked. For this reason, it is necessary to inspect for winding defects as one of the product inspections.

従来、上記のような缶の巻き締め不良を検査する手法として、例えば特許文献１に記載されたものが知られている。これは前記缶胴と前記缶蓋とが巻き締めされた後工程において任意に抜き取られた缶の巻き締め部を高速カッター等で缶の軸線方向に切断し、その切断面を研磨してマイクロスコープで拡大し、その巻き締め状態を確認するようになっている。また近年では、Ｘ線透視画像を用いた手法も提案されている。
特開２００２−２００５２１号公報 2. Description of the Related Art Conventionally, for example, a method described in Patent Document 1 is known as a method for inspecting a winding failure of a can as described above. The can body and the can lid are wound and the can winding part arbitrarily extracted in the post-process is cut in the axial direction of the can with a high-speed cutter or the like, and the cut surface is polished to obtain a microscope. It is designed to confirm the tightening state. In recent years, methods using X-ray fluoroscopic images have been proposed.
Japanese Patent Laid-Open No. 2002-200521

しかしながら、上記のように巻き締め部を切断し検査する手法においては、内容物と不活性ガスとが充填され缶内に負圧又は正圧がかかった状態で検査を行うことが出来ない。またその検査には手間を要する上、検査後の缶は製品として使用することが出来ないという課題があった。  However, in the method of cutting and inspecting the tightening portion as described above, the inspection cannot be performed in a state where the contents and the inert gas are filled and a negative pressure or a positive pressure is applied in the can. Further, the inspection requires labor, and there is a problem that the can after inspection cannot be used as a product.

本発明は、上記課題を鑑みてなされたもので、内容物と不活性ガスとが充填され缶内に負圧又は正圧がかかった状態においても缶の巻き締め部の検査を精度良く行うことの出来る缶の巻き締め検査装置並びに巻き締め検査方法を提供することを目的とする。  The present invention has been made in view of the above problems, and can accurately inspect the tightening portion of the can even when the contents and the inert gas are filled and a negative pressure or a positive pressure is applied to the can. An object of the present invention is to provide a can tightening inspection apparatus and a tightening inspection method.

前記目的を達成するために、本発明は以下の手段を提案している。すなわち本発明は、互いに対向配置されたＸ線源とＸ線検出器の検出面中心とを結ぶＸ線照射軸線が水平に配置され、前記Ｘ線源と前記Ｘ線検出器との間の撮影空間に缶を配置し、鉛直な回転軸線を中心とする回転をこの缶に与えつつＸ線を照射し、所定の回転角度毎に取り込んだＸ線透過データを用いて断層像を構築する断層像演算手段により巻き締め部を検査する缶の巻き締め検査装置において、前記缶を前記撮影空間に保持するチャックが、缶の軸線を鉛直線に対し傾斜させ、且つ前記巻き締め部を前記Ｘ線照射軸線と前記回転軸線との交差部に重ねるよう配置することを特徴とする。   In order to achieve the above object, the present invention proposes the following means. That is, according to the present invention, the X-ray irradiation axis line connecting the X-ray source and the X-ray detector center of the X-ray detector arranged in opposition to each other is horizontally arranged, and imaging between the X-ray source and the X-ray detector is performed. A tomogram in which a can is placed in a space, and a tomogram is constructed using X-ray transmission data acquired at every predetermined rotation angle by irradiating the can with rotation about a vertical rotation axis and irradiating the can with this X-ray. In the can tightening inspection apparatus for inspecting the tightening portion by the calculation means, the chuck for holding the can in the imaging space inclines the axis of the can with respect to a vertical line, and the X-ray irradiation is performed on the tightening portion. It arrange | positions so that it may overlap in the cross | intersection part of an axis and the said rotation axis.

この発明における缶の巻き締め検査装置によれば、Ｘ線源とＸ線検出器の検出面中心とを結ぶＸ線照射軸線が水平に配置され、前記Ｘ線源と前記Ｘ線検出器との間の撮影空間に缶を配置し、鉛直な回転軸線を中心とする回転をこの缶に与えつつＸ線を照射し、所定の回転角度毎に取り込んだＸ線透過データを用いて断層像を構築する断層像演算手段により巻き締め部を検査するので、内容物と不活性ガスとが充填され、缶内に負圧又は正圧がかかった状態において非破壊で缶を検査することが出来る。また缶を保持し回転を与える前記チャックが、この缶の軸線を鉛直線に対し傾斜させ、且つ前記巻き締め部を前記Ｘ線照射軸線と前記回転軸線との交差部に重ねるよう配置するため、撮影される缶の巻き締め部から内容物液面までの距離を離反させ、液面のＸ線散乱による検出への影響を極力少なく抑えることが出来る。   According to the can tightening inspection apparatus of the present invention, the X-ray irradiation axis line connecting the X-ray source and the center of the detection surface of the X-ray detector is horizontally disposed, and the X-ray source and the X-ray detector A can is placed in the imaging space, and X-rays are irradiated while applying rotation about the vertical axis of rotation to the can, and a tomographic image is constructed using X-ray transmission data acquired at every predetermined rotation angle. Since the tightening portion is inspected by the tomographic image calculation means, the contents and the inert gas are filled, and the can can be inspected in a non-destructive manner in a state where a negative pressure or a positive pressure is applied. Further, the chuck for holding and rotating the can is arranged so that the axis of the can is inclined with respect to the vertical line, and the winding portion is overlapped with the intersection of the X-ray irradiation axis and the rotation axis. It is possible to keep the distance from the wrapping portion of the photographed can to the liquid level of the contents, and to suppress the influence on the detection due to the X-ray scattering of the liquid level as much as possible.

本発明の缶の巻き締め検査装置において、前記缶の軸線と前記鉛直線とにより形成される傾斜角は、鉛直に対して１０度〜７０度の間であることとしてもよく、これにより撮影される巻き締め部から内容物液面までの距離を離反させ、液面のＸ線散乱による検出への影響を極力少なく抑えることが出来る。  In the can tightening inspection apparatus of the present invention, an inclination angle formed by the axis of the can and the vertical line may be between 10 degrees and 70 degrees with respect to the vertical, and is photographed thereby. The distance from the tightening part to the content liquid level can be separated, and the influence on the detection by X-ray scattering of the liquid level can be suppressed as much as possible.

また本発明は、互いに対向配置されたＸ線源とＸ線検出器の検出面中心とを結ぶＸ線照射軸線が水平に配置され、前記Ｘ線源と前記Ｘ線検出器との間の撮影空間に缶を配置し、鉛直な回転軸線を中心とする回転をこの缶に与えつつＸ線を照射し、所定の回転角度毎に取り込んだＸ線透過データを用いて断層像を構築する断層像演算手段により巻き締め部を検査する缶の巻き締め検査方法において、前記缶を前記撮影空間に保持し回転させるチャックが、缶の軸線を鉛直線に対し傾斜させ、且つ前記巻き締め部を前記Ｘ線照射軸線と前記回転軸線との交差部に重ねるよう配置することを特徴とする。  According to the present invention, an X-ray irradiation axis line connecting an X-ray source and an X-ray detector center arranged opposite to each other is horizontally arranged, and imaging between the X-ray source and the X-ray detector is performed. A tomogram in which a can is placed in a space, and a tomogram is constructed using X-ray transmission data acquired at every predetermined rotation angle by irradiating the can with rotation about a vertical rotation axis and irradiating the can with this X-ray. In a method for inspecting a can tightening inspecting a tightening portion by a computing means, a chuck for holding and rotating the can in the imaging space inclines the axis of the can with respect to a vertical line, and the tightening portion is moved to the X It arrange | positions so that it may overlap in the intersection of a line irradiation axis and the said rotation axis.

本発明に係る缶の巻き締め検査装置並びに巻き締め検査方法によれば、内容物と不活性ガスとが充填され缶内に負圧又は正圧がかかった状態において、非破壊で缶を検査することが出来るため、より精度の高い検査を行うことが可能となる。またその検査には手間を要さず検査後の缶を製品として使用可能であるので、生産性・製品歩留まりが良い。また撮影される缶の巻き締め部から内容物液面までの距離を離反させ、液面のＸ線散乱による検出への影響を極力少なく抑えることが出来るので、前記巻き締め部の断層像を精度良く鮮明に構築することが可能である。  According to the can tightening inspection apparatus and the tightening inspection method according to the present invention, the can is inspected nondestructively in a state where the contents and the inert gas are filled and a negative pressure or a positive pressure is applied to the can. Therefore, it is possible to perform a more accurate inspection. In addition, since the inspection can be used as a product without requiring labor, the productivity and product yield are good. In addition, since the distance from the clamped part of the photographed can to the liquid level of the contents can be separated and the influence on the detection due to X-ray scattering of the liquid level can be suppressed as much as possible, the tomographic image of the clamped part is accurate. It is possible to build well and clearly.

以下、図面を参照し、この発明の実施の形態について説明する。
図１は、本発明の一実施形態に係る缶の巻き締め検査装置の要部を示す構成図である。この缶の巻き締め検査装置では、Ｘ線源１とＸ線検出器２との間の撮影空間にチャック３が設けられ、このチャック３は、缶Ｗの巻き締め部Ｒ付近は開放状態として缶底部を保持するようになっている。検査に供される缶Ｗはその前工程で飲料などの内容物と不活性ガスとが充填され、有底円筒状の缶胴ＷＢとこの缶胴の開口部を閉塞する缶蓋ＷＣとが巻き締められている。この缶Ｗの内容物の液面ＷＡの上部に形成される空間のヘッドスペースＡには前記不活性ガス等が充填されている。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a configuration diagram showing a main part of a can tightening inspection apparatus according to an embodiment of the present invention. In this can tightening inspection apparatus, a chuck 3 is provided in an imaging space between the X-ray source 1 and the X-ray detector 2, and the chuck 3 is opened in the vicinity of the tightening portion R of the can W. It is designed to hold the bottom. The can W to be inspected is filled with contents such as beverages and inert gas in the previous process, and the bottomed cylindrical can body WB and the can lid WC closing the opening of the can body are wound. It is tightened. The head space A formed in the upper part of the liquid level WA of the contents of the can W is filled with the inert gas or the like.

撮影のためのＸ線は、Ｘ線源１から照射されＸ線検出器２により検出されるよう構成される。前記Ｘ線検出器２の検出面中心を通るＸ線照射軸線Ｃ１は、水平とされるように、前記Ｘ線源１と前記Ｘ線検出器２とが対向され配置されている。この缶Ｗは前記チャック３に保持され、前記Ｘ線照射軸線Ｃ１と撮影される缶Ｗの巻き締め部ＲＡの外周の接線方向とが平行に、且つ前記Ｘ線照射軸線Ｃ１と前記巻き締め部ＲＡとが重なるよう配置される。又前記チャック３は、円盤状の回転テーブル１１に支持され、回転軸線Ｃ３を中心として矢印Ｇ方向に間欠回転可能に配設されている。前記回転軸線Ｃ３は、該チャック３により保持される缶Ｗの中心軸線と重なるよう構成されている。前記チャック３は、前記回転軸線Ｃ３と前記巻き締め部ＲＡを通る鉛直線である回転軸線Ｃ２とが傾斜角Ｊで斜めに交わるようこの缶Ｗを配置する。前記回転テーブル１１は、前記回転軸線Ｃ２を中心として矢印Ｆ方向に間欠回転可能に配設されている。そして前記巻き締め部ＲＡから前記液面ＷＡまでの距離Ｌを、限られたヘッドスペースＡにおいて極力大きくとるようになっている。
又図示しないが、この缶の巻き締め検査装置は前記Ｘ線検出器２により検出されたＸ線透過データを基に断層像を構築するための断層像演算手段を備えている。 X-rays for imaging are configured to be emitted from the X-ray source 1 and detected by the X-ray detector 2. The X-ray source 1 and the X-ray detector 2 are arranged to face each other so that the X-ray irradiation axis C1 passing through the center of the detection surface of the X-ray detector 2 is horizontal. The can W is held by the chuck 3, and the X-ray irradiation axis C1 and the tangential direction of the outer periphery of the winding portion RA of the can W to be photographed are parallel, and the X-ray irradiation axis C1 and the winding portion It arrange | positions so that RA may overlap. The chuck 3 is supported by a disk-shaped rotary table 11 and is disposed so as to be intermittently rotatable in the direction of arrow G about the rotation axis C3. The rotation axis C3 is configured to overlap with the central axis of the can W held by the chuck 3. In the chuck 3, the can W is disposed so that the rotation axis C3 and the rotation axis C2, which is a vertical line passing through the winding portion RA, obliquely intersect at an inclination angle J. The rotary table 11 is disposed so as to be intermittently rotatable in the direction of arrow F around the rotation axis C2. A distance L from the tightening portion RA to the liquid level WA is set as large as possible in the limited head space A.
Further, although not shown, the can tightening inspection apparatus includes a tomographic image calculation means for constructing a tomographic image based on the X-ray transmission data detected by the X-ray detector 2.

次に、以上のように構成された缶の巻き締め検査装置により巻き締め検査を行う方法について説明する。
缶Ｗは、不図示の缶供給手段により前記チャック３にその缶底部を保持される。Ｘ線源１はＸ線を照射させ、前記チャック３は前記撮影空間に缶Ｗの軸線を鉛直線である回転軸線Ｃ２に対し傾斜角Ｊ傾かせて配置し、回転テーブル１１は前記回転軸線Ｃ２を中心にこの缶Ｗを矢印Ｆ方向に間欠回転させる。Ｘ線検出器２は、前記回転テーブル１１の間欠回転動作に同期しながら所定の回転角度ごとに前記巻き締め部ＲＡのＸ線透過データを検出する。検出されたＸ線透過データは、前記断層像演算手段に送られその断層像を構築する。このようにして構築された前記巻き締め部ＲＡの断層像を、図２として示す。 Next, a method of performing a tightening inspection using the can tightening inspection apparatus configured as described above will be described.
The can bottom is held by the chuck 3 by a can supply means (not shown). The X-ray source 1 irradiates X-rays, the chuck 3 is arranged in the imaging space with the axis of the can W being inclined at an inclination angle J with respect to the rotation axis C2 which is a vertical line, and the rotary table 11 is arranged with the rotation axis C2. The can W is intermittently rotated in the direction of arrow F around the center. The X-ray detector 2 detects X-ray transmission data of the tightening portion RA at every predetermined rotation angle while synchronizing with the intermittent rotation operation of the rotary table 11. The detected X-ray transmission data is sent to the tomographic image calculation means to construct the tomographic image. FIG. 2 shows a tomographic image of the tightening portion RA constructed as described above.

本発明の実施形態では、上述したように前記缶Ｗの軸線Ｃ３と鉛直線である前記回転軸線Ｃ２とが傾斜角Ｊで斜めに交わるよう構成される。このため、前記撮影される巻き締め部ＲＡから液面ＷＡまでの距離Ｌを限られたヘッドスペースＡにおいて極力大きくとることが出来る。そのため前記液面ＷＡ付近で該液面ＷＡの影響によりＸ線が散乱された場合にも、検出されるＸ線透過データに対しその影響を与えにくいよう構成されている。ここで前記傾斜角Ｊは、前記距離Ｌを極力大きくとるためにも鉛直に対して１０度〜７０度の間に設定されるのが好ましい。  In the embodiment of the present invention, as described above, the axis C3 of the can W and the rotation axis C2, which is a vertical line, are obliquely intersected at an inclination angle J. For this reason, the distance L from the film-wrapped portion RA to the liquid level WA can be made as large as possible in the limited head space A. Therefore, even when X-rays are scattered near the liquid surface WA due to the influence of the liquid surface WA, the X-ray transmission data to be detected is hardly affected. Here, the inclination angle J is preferably set between 10 degrees and 70 degrees with respect to the vertical in order to make the distance L as large as possible.

次に比較例として、本実施形態と異なる缶の巻き締め検査装置の要部の構成図を図３として示す。尚、上述の実施形態にて説明した図の同一箇所の説明は省略する。
図でＸ線源１とＸ線検出器２との間の撮影空間には回転テーブル１１が設けられており、この回転テーブル１１の上面には缶Ｗを保持するチャック３が固定されている。缶Ｗは前記チャック３に保持され、前記Ｘ線照射軸線Ｃ１と撮影される缶Ｗの巻き締め部ＲＡの外周の接線方向とが平行に、且つ前記Ｘ線照射軸線Ｃ１と前記巻き締め部ＲＡとが重なるよう配置される。又回転テーブル１１の中心軸を通る回転軸線Ｃ２は、該チャック３により保持される缶Ｗの中心軸線と重なるよう構成されている。このチャック３は、前記回転テーブル１１が前記回転軸線Ｃ２を中心として間欠回転するのに伴って、矢印Ｆ方向に間欠回転可能に構成されている。前記チャック３は、前記回転軸線Ｃ２が鉛直方向になるようこの缶Ｗを配置する。そして前記撮影される缶Ｗの巻き締め部ＲＡから前記液面ＷＡまでの距離Ｌは、上述した本発明の実施形態と比べ小さい値となる。このような構成においてＸ線検出器２により検出されるＸ線透過データは、前記液面ＷＡの影響を受けＸ線が散乱されやすく、構築される断層像が不鮮明となる。比較例において検出されたＸ線透過データを基に構築された断層像を、図４として示す。 Next, as a comparative example, FIG. 3 shows a configuration diagram of a main part of a can tightening inspection apparatus different from the present embodiment. In addition, description of the same location of the figure demonstrated in the above-mentioned embodiment is abbreviate | omitted.
In the drawing, a rotary table 11 is provided in an imaging space between the X-ray source 1 and the X-ray detector 2, and a chuck 3 for holding a can W is fixed to the upper surface of the rotary table 11. The can W is held by the chuck 3, and the X-ray irradiation axis C1 and the tangential direction of the outer periphery of the winding portion RA of the can W to be photographed are parallel to each other, and the X-ray irradiation axis C1 and the winding portion RA. And are arranged to overlap. The rotation axis C <b> 2 passing through the center axis of the turntable 11 is configured to overlap the center axis of the can W held by the chuck 3. The chuck 3 is configured to be capable of intermittent rotation in the direction of arrow F as the rotary table 11 rotates intermittently about the rotation axis C2. The chuck 3 arranges the can W so that the rotation axis C2 is in the vertical direction. And the distance L from the winding-up part RA of the said photographed can W to the said liquid level WA becomes a small value compared with embodiment of this invention mentioned above. In such a configuration, the X-ray transmission data detected by the X-ray detector 2 is easily scattered by the influence of the liquid surface WA, and the tomographic image to be constructed becomes unclear. FIG. 4 shows a tomographic image constructed based on the X-ray transmission data detected in the comparative example.

図２の巻き締め部ＲＡの断層像と図４の巻き締め部ＲＡの断層像とを比較し明らかなように、本発明における実施形態の断層像は、比較例における断層像に比べその像を鮮明に構築することが可能である。これは缶Ｗの内容物の液面ＷＡのＸ線散乱による検出への影響を極力少なく抑えることが出来ている効果による。  As is clear by comparing the tomographic image of the tightening portion RA in FIG. 2 and the tomographic image of the tightening portion RA in FIG. 4, the tomographic image of the embodiment in the present invention is compared with the tomographic image in the comparative example. It is possible to construct clearly. This is due to the effect that the influence on the detection by the X-ray scattering of the liquid surface WA of the contents of the can W can be suppressed as much as possible.

以上説明したように、本実施形態による缶の巻き締め検査装置並びに巻き締め検査方法によれば、内容物と不活性ガスとが充填され缶Ｗ内に負圧又は正圧がかかった状態において、非破壊で缶Ｗを検査することが出来るため、より精度の高い検査を行うことが可能となる。またその検査には手間を要さず検査後の缶Ｗを製品として使用可能であり、生産性・製品歩留まりが良い。また缶Ｗの巻き締め部ＲＡから液面ＷＡまでの距離Ｌを離反させ、液面ＷＡのＸ線散乱による検出への影響を極力少なく抑えることが出来るので、前記巻き締め部ＲＡの断層像を精度良く鮮明に構築することが可能である。そして鮮明に構築された前記断層像によって缶Ｗの巻き締め状態及び巻き締め寸法の確認を精度良く行うことが出来る。  As described above, according to the can tightening inspection apparatus and the tightening inspection method according to the present embodiment, the contents and the inert gas are filled and a negative pressure or a positive pressure is applied in the can W. Since the can W can be inspected nondestructively, it becomes possible to inspect with higher accuracy. In addition, the inspection can be used as a product without requiring labor, and productivity and product yield are good. Further, since the distance L from the tightening portion RA of the can W to the liquid surface WA is separated and the influence on the detection due to the X-ray scattering of the liquid surface WA can be suppressed as much as possible, a tomographic image of the tightening portion RA is obtained. It is possible to construct with high accuracy and clarity. The state of tightening of the can W and the tightening dimension can be confirmed with high accuracy by the tomographic image that is clearly constructed.

なお、本発明は前記実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。例えば前記チャック３は複数の関節を備える不図示の多軸ロボットにより支持されることとしてもよい。そして前記多軸ロボットにより前記撮影空間に缶Ｗを搬入し、巻き締め部ＲＡを撮影させた後搬出させるよう構成すれば、全自動タイプの缶Ｗの巻き締め検査装置を得ることが出来る。又前記多軸ロボットによる缶Ｗの搬入・搬出の両側に搬入コンベアと搬出コンベアとを配設して、連続的に巻き締め検査を行うよう装置を構成してもよい。  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the chuck 3 may be supported by a multi-axis robot (not shown) having a plurality of joints. If the can W is carried into the imaging space by the multi-axis robot and taken out after the fastening part RA is photographed, a fully automatic type of fastening inspection apparatus for the can W can be obtained. In addition, the apparatus may be configured such that a carry-in conveyor and a carry-out conveyor are arranged on both sides of the carry-in / carry-out of the can W by the multi-axis robot so that the winding tightening inspection is continuously performed.

本発明の一実施形態に係る缶の巻き締め検査装置の要部を示す構成図である。It is a block diagram which shows the principal part of the winding test | inspection apparatus of the can which concerns on one Embodiment of this invention. 本発明の一実施形態における缶の巻き締め検査装置により構築された巻き締め部の断層像である。It is a tomographic image of a tightening part constructed by a can tightening inspection apparatus according to an embodiment of the present invention. 缶の巻き締め検査装置の比較例を示す構成図である。It is a block diagram which shows the comparative example of the winding test | inspection apparatus of a can. 缶の巻き締め検査装置の比較例により構築された巻き締め部の断層像である。It is a tomographic image of a tightening portion constructed by a comparative example of a can tightening inspection device.

符号の説明Explanation of symbols

１ Ｘ線源
２ Ｘ線検出器
３ チャック
Ｃ１ Ｘ線照射軸線
Ｃ２ 回転軸線（鉛直線）
Ｃ３ 回転軸線（缶軸線）
Ｆ 回転方向
Ｇ 回転方向
Ｊ 傾斜角
Ｒ 巻き締め部
ＲＡ 巻き締め部
Ｗ 缶

1 X-ray source 2 X-ray detector 3 Chuck C1 X-ray irradiation axis C2 Rotation axis (vertical line)
C3 axis of rotation (can axis)
F Rotation direction G Rotation direction J Inclination angle R Winding part RA Winding part W Can

Claims (3)

互いに対向配置されたＸ線源とＸ線検出器の検出面中心とを結ぶＸ線照射軸線が水平に配置され、前記Ｘ線源と前記Ｘ線検出器との間の撮影空間に缶を配置し、鉛直な回転軸線を中心とする回転をこの缶に与えつつＸ線を照射し、所定の回転角度毎に取り込んだＸ線透過データを用いて断層像を構築する断層像演算手段により巻き締め部を検査する缶の巻き締め検査装置において、
前記缶を前記撮影空間に保持するチャックが、缶の軸線を鉛直線に対し傾斜させ、且つ前記巻き締め部を前記Ｘ線照射軸線と前記回転軸線との交差部に重ねるよう配置することを特徴とする缶の巻き締め検査装置。 An X-ray irradiation axis line connecting the X-ray source and the detection surface center of the X-ray detector, which are opposed to each other, is horizontally arranged, and a can is arranged in an imaging space between the X-ray source and the X-ray detector. Then, the X-ray is irradiated with X-rays while applying rotation about the vertical axis of rotation to the can, and the tomogram calculation means for constructing a tomogram using X-ray transmission data taken at every predetermined rotation angle is tightened. In the can tightening inspection device that inspects the part,
A chuck for holding the can in the imaging space is arranged such that an axis of the can is inclined with respect to a vertical line and the winding portion is overlapped with an intersection of the X-ray irradiation axis and the rotation axis. Can tightening inspection device. 請求項１に記載の缶の巻き締め検査装置において、
前記缶の軸線と前記鉛直線とにより形成される傾斜角は、鉛直に対して１０度〜７０度の間であることを特徴とする缶の巻き締め検査装置。 In the can tightening inspection device according to claim 1,
An inclination angle formed by the axis of the can and the vertical line is between 10 degrees and 70 degrees with respect to the vertical. 互いに対向配置されたＸ線源とＸ線検出器の検出面中心とを結ぶＸ線照射軸線が水平に配置され、前記Ｘ線源と前記Ｘ線検出器との間の撮影空間に缶を配置し、鉛直な回転軸線を中心とする回転をこの缶に与えつつＸ線を照射し、所定の回転角度毎に取り込んだＸ線透過データを用いて断層像を構築する断層像演算手段により巻き締め部を検査する缶の巻き締め検査方法において、
前記缶を前記撮影空間に保持し回転させるチャックが、缶の軸線を鉛直線に対し傾斜させ、且つ前記巻き締め部を前記Ｘ線照射軸線と前記回転軸線との交差部に重ねるよう配置することを特徴とする缶の巻き締め検査方法。 An X-ray irradiation axis line connecting the X-ray source and the detection surface center of the X-ray detector, which are opposed to each other, is horizontally arranged, and a can is arranged in an imaging space between the X-ray source and the X-ray detector. Then, the X-ray is irradiated with X-rays while applying rotation about the vertical axis of rotation to the can, and the tomogram calculation means for constructing a tomogram using X-ray transmission data taken at every predetermined rotation angle is tightened. In the method for inspecting the winding of the can for inspecting the part,
A chuck for holding and rotating the can in the imaging space is disposed so that the axis of the can is inclined with respect to a vertical line, and the winding portion is overlapped with the intersection of the X-ray irradiation axis and the rotation axis. A method for inspecting a can winding.
JP2007094941A 2007-03-30 2007-03-30 Inspection apparatus and inspection method for can seaming Pending JP2008249668A (en)

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CN102928447A (en) * 2012-11-10 2013-02-13 福建省豪用环保科技有限公司 Computed tomography method and imaging device special for tires
WO2014164796A3 (en) * 2013-03-11 2014-11-27 Rexam Beverage Can Company Method and apparatus for necking and flanging a metallic bottle
US10850497B2 (en) 2013-06-11 2020-12-01 Ball Corporation Apparatus and method for forming high definition lithographic images on containers
US10195842B2 (en) 2013-06-11 2019-02-05 Ball Corporation Apparatus for forming high definition lithographic images on containers
US10675861B2 (en) 2014-12-04 2020-06-09 Ball Beverage Packaging Europe Limited Method and apparatus for printing cylindrical structures
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US11034145B2 (en) 2016-07-20 2021-06-15 Ball Corporation System and method for monitoring and adjusting a decorator for containers
CN106841245A (en) * 2017-03-08 2017-06-13 肇庆市嘉仪仪器有限公司 Full-automatic X ray tester and its detection method
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