JP2001318062A - X-ray foreign matter detection device - Google Patents
X-ray foreign matter detection deviceInfo
- Publication number
- JP2001318062A JP2001318062A JP2000134802A JP2000134802A JP2001318062A JP 2001318062 A JP2001318062 A JP 2001318062A JP 2000134802 A JP2000134802 A JP 2000134802A JP 2000134802 A JP2000134802 A JP 2000134802A JP 2001318062 A JP2001318062 A JP 2001318062A
- Authority
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- Japan
- Prior art keywords
- ray
- ventilation
- ray generator
- foreign matter
- detection device
- 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.)
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- Analysing Materials By The Use Of Radiation (AREA)
- X-Ray Techniques (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、被検査物に対しX
線発生器からX線を曝射して、前記X線の透過量から前
記被検査物中の異物を検出するX線異物検出装置に係
り、特に、X線発生器から漏洩するX線を遮蔽しつつX
線発生器を冷却するX線異物検出装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to an X-ray foreign matter detection device that irradiates X-rays from a X-ray generator and detects foreign matter in the inspection object from the amount of transmission of the X-rays, and in particular, shields X-rays leaking from the X-ray generator. X while doing
The present invention relates to an X-ray foreign matter detection device for cooling a X-ray generator.
【0002】[0002]
【従来の技術】X線異物検出装置は、食肉,加工品等の
食料品等被検査物にX線を曝射して、曝射したX線の透
過量から被検査物中に金属等の異物が存在しているか否
かを検出する装置である。2. Description of the Related Art An X-ray foreign matter detection apparatus irradiates an X-ray to an inspection object such as a food product such as meat or processed food, and detects the amount of metal or the like in the inspection object based on the amount of transmitted X-ray. This is a device that detects whether a foreign substance is present.
【0003】X線を曝射するX線発生器は、金属製の箱
体内部に設けられているX線管を絶縁油により浸漬して
密封されている。X線管自体はX線曝射により発熱する
ため、X線管から絶縁油に伝導された熱を外部に放熱さ
せて、X線管を冷却させる必要がある。An X-ray generator that irradiates X-rays is sealed by immersing an X-ray tube provided inside a metal box with insulating oil. Since the X-ray tube itself generates heat by X-ray exposure, it is necessary to cool the X-ray tube by radiating the heat conducted from the X-ray tube to the insulating oil to the outside.
【0004】X線管から絶縁油に伝導された熱を外部に
放熱させる手段としては、通常、X線発生器周面に貫通
保持された冷却フィンが用いられ、絶縁油から熱を伝導
してX線発生器の外に放熱させている。しかし、冷却フ
ィンは通常、熱伝達特性のよいAlが用いられるが、A
lはX線の透過率の高いため、放熱と共にX線が漏洩す
ることとなる。As means for dissipating the heat conducted from the X-ray tube to the insulating oil to the outside, cooling fins penetrated and held on the peripheral surface of the X-ray generator are usually used to conduct heat from the insulating oil. Heat is radiated outside the X-ray generator. However, cooling fins are usually made of Al having good heat transfer characteristics.
Since 1 has a high transmittance of X-rays, the X-rays leak together with the heat radiation.
【0005】このため、従来は、特開平11−1834
05号公報に示すように、冷却フィンを外周面に設けた
X線発生器をフードで遮蔽し、X線発生器外周面とフー
ド内周面の間隙を冷却ファンで送風して、X線発生器外
周面の冷却フィンを冷却している。[0005] For this reason, conventionally, Japanese Unexamined Patent Application Publication No.
As shown in Japanese Patent Publication No. 05, the X-ray generator provided with cooling fins on the outer peripheral surface is shielded by a hood, and the gap between the outer peripheral surface of the X-ray generator and the inner peripheral surface of the hood is blown by a cooling fan to generate X-rays. Cooling fins on the outer peripheral surface of the vessel are cooled.
【0006】[0006]
【発明が解決しようとする課題】しかし、X線発生器と
フードとの間隙が送風路となるため、X線発生器の側面
が送風の障害となるため、排出口から排気されるまで送
風路が迂回する構成となっており、冷却効率が向上しな
い。また、作業者がフードを上方に持ち上げて取り外す
構成となっているため、X線発生器のメンテナンスに際
して労力を伴うこととなる。However, since the gap between the X-ray generator and the hood serves as an air passage, the side surface of the X-ray generator obstructs the air flow. Are bypassed, and the cooling efficiency is not improved. Further, since the hood is lifted up and removed by an operator, labor is required for maintenance of the X-ray generator.
【0007】本発明は、上記欠点を除くためになされた
ものであって、その目的とするところは、X線発生器か
らの漏洩X線の遮蔽及びX線発生器の冷却を図ることに
ある。SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned disadvantages, and has as its object to shield X-rays leaking from an X-ray generator and to cool the X-ray generator. .
【0008】また、他の目的は、通風路を直線状に構成
することにより、熱伝達部材の冷却率の向上を図ること
にある。特に、通風路の両端開口の少なくともいずれか
一方に冷却機構を設けることにより、更に熱伝達部材の
冷却率の向上を図ることにある。Another object of the present invention is to improve the cooling rate of the heat transfer member by forming the ventilation passage in a straight line. In particular, by providing a cooling mechanism in at least one of both ends of the ventilation path, the cooling rate of the heat transfer member can be further improved.
【0009】更に他の目的は、放熱器が設けられたX線
発生器を通風路から着脱自在に構成することにより、X
線発生器のメンテナンスの簡素化を図ることにある。Still another object is to provide an X-ray generator provided with a radiator so that the X-ray generator can be attached to and detached from an air passage.
An object of the present invention is to simplify maintenance of a wire generator.
【0010】[0010]
【課題を解決するための手段】要するに、本発明の請求
項1記載のX線異物検出装置は、被検査物に対しX線発
生器(10)からX線を曝射して、前記X線の透過量か
ら前記被検査物中の異物を検出するX線異物検出装置に
おいて、前記X線発生器から発生する熱を外部へ導く通
風路(40)と、該通風路の一部をなすと共に前記X線
発生器を密封する基板(17)と、該基板に貫通して支
持され、前記熱を前記通風路に伝達する熱伝達部材(1
8)と、を有する放熱器(16)と、を具備することを
特徴とする。In short, an X-ray foreign matter detecting apparatus according to a first aspect of the present invention emits X-rays from an X-ray generator (10) to an object to be inspected, so that the X-ray foreign matter is detected. An X-ray foreign matter detection device for detecting foreign matter in the object to be inspected from the amount of transmitted light, wherein a ventilation path (40) for guiding heat generated from the X-ray generator to the outside and a part of the ventilation path A substrate (17) for sealing the X-ray generator; and a heat transfer member (1) supported through the substrate and transmitting the heat to the ventilation path.
8) and a radiator (16) having the following.
【0011】また、本発明の請求項2記載のX線異物検
出装置は、請求項1記載のX線異物検出装置において、
前記通風路は、外部に連通する一対の通風口(27a,
27a)を有し、前記一方の通風口から前記他方の通風
口に向かって直線状に形成されていることを特徴とす
る。According to a second aspect of the present invention, there is provided an X-ray foreign matter detecting apparatus as set forth in the first aspect.
The ventilation path has a pair of ventilation ports (27a,
27a), and is formed linearly from the one ventilation opening toward the other ventilation opening.
【0012】更に、本発明の請求項3記載のX線異物検
出装置は、請求項2記載のX線異物検出装置において、
前記通風路の一部をなす前記基板は、前記X線発生器と
ともに前記通風路から着脱自在に構成されることを特徴
とする。Further, the X-ray foreign object detecting device according to claim 3 of the present invention is the X-ray foreign object detecting device according to claim 2,
The substrate forming a part of the ventilation path is configured to be detachable from the ventilation path together with the X-ray generator.
【0013】また、本発明の請求項4記載のX線異物検
出装置は、請求項1記載のX線異物検出装置において、
前記通風路は、外部に連通する通風口をそれぞれ有し、
直線状に設けられた一対の筒体(27,27)と、前記
基板と、該基板と共に前記一対の筒体の間に連結され、
前記基板上の前記熱伝達部材を覆う着脱自在な遮蔽部材
(21)と、からなる連結通路(20)と、で構成され
ており、前記連結通路は、前記放熱器が設けられた前記
X線発生器とともに前記一対の筒体間に着脱自在に構成
されることを特徴とする。According to a fourth aspect of the present invention, there is provided an X-ray foreign substance detecting apparatus as set forth in the first aspect.
The ventilation path has ventilation holes communicating with the outside,
A pair of cylinders (27, 27) provided in a straight line, the substrate, and the substrate and the pair of cylinders connected together;
A detachable shielding member (21) for covering the heat transfer member on the substrate; and a connecting passage (20) formed of the X-ray provided with the radiator. It is characterized by being configured to be detachable between the pair of cylinders together with the generator.
【0014】また、本発明の請求項5記載のX線異物検
出装置は、請求項2〜4のいずれかに記載のX線異物検
出装置において、前記通風口の少なくともいずれか一方
に、前記通風路に設けられている前記熱伝導部材を冷却
する着脱自在な冷却手段(31)を具備することを特徴
とする。According to a fifth aspect of the present invention, there is provided an X-ray foreign matter detecting apparatus according to any one of the second to fourth aspects, wherein the ventilating hole is provided in at least one of the ventilation holes. It is characterized by comprising a detachable cooling means (31) for cooling the heat conducting member provided in the path.
【0015】X線発生器10から発生する熱は熱伝達部
材18で通風路40に伝達されるとともに、X線発生器
10から熱伝達部材18を介してX線が漏洩する。通風
路40では、熱伝達部材18から熱が放出され、又は冷
却手段31により強制的に熱伝達部材18を冷却して、
熱を外部に放出させる。漏洩X線は、通風路40内面で
吸収散乱を繰り返して減衰される。Heat generated from the X-ray generator 10 is transmitted to the ventilation path 40 by the heat transfer member 18, and X-rays leak from the X-ray generator 10 via the heat transfer member 18. In the ventilation path 40, heat is released from the heat transfer member 18, or the heat transfer member 18 is forcibly cooled by the cooling unit 31,
Releases heat to the outside. The leaked X-rays are attenuated by repeatedly absorbing and scattering on the inner surface of the ventilation passage 40.
【0016】[0016]
【発明の実施の形態】本発明のX線異物検出装置の第1
実施の形態について説明する。図1は本発明によるX線
異物検出装置を示す概略斜視図である。X線異物検出装
置1は、その装置本体2内部に、生肉,魚,加工食品,
医薬等の被検査物を搬送するコンベア3と、搬送される
被検査物を搬送路途中において異物を検出する異物検出
部6と、を有している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment
An embodiment will be described. FIG. 1 is a schematic perspective view showing an X-ray foreign matter detection device according to the present invention. The X-ray foreign matter detection device 1 includes raw meat, fish, processed food,
The apparatus includes a conveyor 3 for transporting an inspection object such as a medicine, and a foreign object detection unit 6 for detecting a foreign object in the transportation path of the inspection object.
【0017】コンベア3は、不図示の駆動モータにより
駆動され、搬入口4から搬入された被検査物を搬出口5
へ搬出するようになっている。異物検出部6は、コンベ
ア3上方に設けられるX線発生器10とコンベア3内に
設けられるX線検出器7と、で構成されている。The conveyor 3 is driven by a drive motor (not shown) to transfer the inspection object carried in from the carry-in port 4 to the carry-out port 5.
To be carried out. The foreign matter detector 6 includes an X-ray generator 10 provided above the conveyor 3 and an X-ray detector 7 provided inside the conveyor 3.
【0018】X線検出器7は、被検査物に曝射されたX
線の透過量から金属屑,骨等の異物が含まれているか否
かを検出する。The X-ray detector 7 detects the X-rays
It is detected from the transmission amount of the line whether or not foreign matter such as metal scrap and bone is included.
【0019】X線発生器10は、図2に示すように、金
属製の箱体11内部に設けられている円筒状のX線管1
2を絶縁油13により浸漬した構成となっており、図1
に示すように、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線を生成する。X線管12
は、その長手方向が被検査物の搬送方向に直交するよう
に設けられている。生成されたX線は、下方のX線検出
器7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。As shown in FIG. 2, the X-ray generator 10 has a cylindrical X-ray tube 1 provided inside a metal box 11.
2 is immersed in an insulating oil 13, as shown in FIG.
As shown in (1), an electron beam from the cathode of the X-ray tube 12 is irradiated on the anode target to generate X-rays. X-ray tube 12
Is provided such that its longitudinal direction is orthogonal to the transport direction of the inspection object. The generated X-rays are emitted toward a lower X-ray detector 7 through a slit (not shown) along the longitudinal direction, where the substantially conical X-rays are formed into a substantially triangular screen. It has become.
【0020】箱体11の外側底面には、図2に示すよう
に、後述する載置台29の嵌合溝30に嵌合される嵌合
部14が設けられている。また、箱体11の搬送方向に
対向する両外側面には、L字状のアングル15,15が
設けられており、箱体11の外側底面と面一になってい
る。箱体11上部の開口縁11aはフランジ状に形成さ
れている。As shown in FIG. 2, a fitting portion 14 to be fitted in a fitting groove 30 of a mounting table 29 described later is provided on the outer bottom surface of the box 11. Further, L-shaped angles 15, 15 are provided on both outer side surfaces of the box body 11 opposed to each other in the transport direction, and are flush with the outer bottom surface of the box body 11. The opening edge 11a at the top of the box 11 is formed in a flange shape.
【0021】放熱器16は、矩形状の基板17に、複数
本(図では12本)の棒状の冷却フィン18を表面から
裏面に貫通させたものである。放熱器16の基板17
は、箱体11の開口縁11aに支持されて箱体11の開
口11bを密封し、各冷却フィン18の一端18aは箱
体11の開口11bに収納され、絶縁油13に浸漬する
ようになっている。なお、放熱器16は、基板17に複
数本逆U字状の冷却フィンを表面から裏面に貫通させた
ものでもよい。The radiator 16 has a plurality of (twelve in the figure) rod-shaped cooling fins 18 penetrating a rectangular substrate 17 from the front surface to the back surface. Substrate 17 of radiator 16
Is supported by the opening edge 11a of the box body 11 to seal the opening 11b of the box body 11, and one end 18a of each cooling fin 18 is housed in the opening 11b of the box body 11 and immersed in the insulating oil 13. ing. The radiator 16 may have a structure in which a plurality of inverted U-shaped cooling fins penetrate the substrate 17 from the front surface to the back surface.
【0022】基板17上には、各冷却フィン18の他端
18bから漏洩するX線を遮蔽するための略コ字状の遮
蔽部材21が設けられている。遮蔽部材21には、鉄,
鉛等のX線を透過させない金属が用いられる。遮蔽部材
21の両開口縁には突出片21aが形成され、基板17
上で固定される。基板17表面から突出している各冷却
フィン18の他端18bは、遮蔽部材21の開口溝21
bに収納されるようになっている。遮蔽部材21の搬送
方向の両側は開放されている。放熱器16の基板17表
面は、遮蔽部材21の開口溝21b内面とともに連結通
路20を構成する。A substantially U-shaped shielding member 21 for shielding X-rays leaking from the other end 18b of each cooling fin 18 is provided on the substrate 17. The shielding member 21 includes iron,
A metal that does not transmit X-rays, such as lead, is used. Projecting pieces 21 a are formed on both opening edges of the shielding member 21,
Fixed on top. The other end 18b of each cooling fin 18 protruding from the surface of the substrate 17 is
b. Both sides of the shielding member 21 in the transport direction are open. The surface of the substrate 17 of the radiator 16 forms a connection passage 20 with the inner surface of the opening groove 21 b of the shielding member 21.
【0023】また、図1に示すように、装置本体2の上
部前面には、開閉自在な前面板8が設けられ、X線発生
器10を内部に収納するようになっている。装置本体2
の上部両側面には開口窓9が形成されている。As shown in FIG. 1, an openable and closable front plate 8 is provided on the upper front surface of the apparatus main body 2 so as to house an X-ray generator 10 therein. Device body 2
Opening windows 9 are formed on both upper side surfaces of the.
【0024】図3は、遮蔽部材21と放熱器16が取り
付けられたX線発生器10が収納されていないときの装
置本体2上部の部分断面図であり、図4は、収納された
ときの装置本体2上部の部分断面図であり、図5は、そ
の側面部分断面図である。FIG. 3 is a partial cross-sectional view of the upper portion of the apparatus main body 2 when the X-ray generator 10 to which the shielding member 21 and the radiator 16 are attached is not housed, and FIG. FIG. 5 is a partial cross-sectional view of the upper part of the apparatus main body 2, and FIG.
【0025】図3及び図4に示すように、装置本体2上
部は、仕切板22により制御室23と収納室26とに仕
切られている。制御室23には、異物検出部6やコンベ
ア3等を制御するための回路基板等の制御部24が仕切
板22により収納室26から隔離されており、装置本体
2の一側面上部に形成された開口窓に冷却ファン機構2
5を取りつけて、制御部23を冷却するようになってい
る。As shown in FIGS. 3 and 4, the upper part of the apparatus main body 2 is partitioned by a partition plate 22 into a control room 23 and a storage room 26. In the control room 23, a control unit 24 such as a circuit board for controlling the foreign object detection unit 6, the conveyor 3, and the like is separated from the storage room 26 by the partition plate 22 and is formed on the upper side of one side of the apparatus main body 2. Cooling fan mechanism 2
5 to cool the control unit 23.
【0026】収納室26には、図4に示すように、遮蔽
部材21と放熱器16が取り付けられたX線発生器10
が収納される。収納室26の両外側面上方には、外部に
連通する開口窓9が形成されている。仕切板22裏面の
両端には、両端が開口している一対の角筒体27,27
が固定されており、それぞれ一端27aが開口窓9の内
側開口縁に当接し、外部に連通する通風口となってい
る。また、角筒体27の他端27bは互いに対向し合っ
ており、この間に連結通路20が連結されて、搬送物の
搬送方向に沿った一本の直線状の通風路40を構成する
ようになっている。角筒体27には、遮蔽部材20と同
様、鉄,鉛等のX線を透過させない金属が用いられる。As shown in FIG. 4, the X-ray generator 10 having the shielding member 21 and the radiator 16
Is stored. Opening windows 9 communicating with the outside are formed above both outer side surfaces of the storage chamber 26. At both ends of the back surface of the partition plate 22, a pair of rectangular cylinders 27, 27 having both ends opened are provided.
Are fixed, one end 27a of which is in contact with the inner opening edge of the opening window 9 to form a ventilation port communicating with the outside. The other ends 27b of the rectangular cylinders 27 are opposed to each other, and the connection passages 20 are connected between the other ends 27b so as to form one linear ventilation path 40 along the conveyance direction of the conveyed object. Has become. Similar to the shielding member 20, a metal that does not transmit X-rays, such as iron or lead, is used for the rectangular cylinder 27.
【0027】収納室26の底面には載置台29が設けら
れ、X線発生器10の嵌合部14と嵌合する嵌合溝30
が形成されている。X線発生器10は、載置台29の嵌
合溝30に嵌合部14を嵌合して載置され、奥行方向に
スライドするようになっている。載置台29には、例え
ば、不図示のリミットスイッチが設けられており、X線
発生器10が所望の位置までスライドされると、リミッ
トスイッチの作動片に係合して位置決めされる。載置台
29上面には、外側に向けて突出片29aが形成され、
ボルト締めによりアングル15と固定される。なお、リ
ミットスイッチの代わりに、近接センサを用いて、X線
発生器10を位置決めしてもよい。A mounting table 29 is provided on the bottom surface of the storage chamber 26, and a fitting groove 30 for fitting with the fitting portion 14 of the X-ray generator 10.
Are formed. The X-ray generator 10 is mounted by fitting the fitting portion 14 into the fitting groove 30 of the mounting table 29 and slides in the depth direction. The mounting table 29 is provided with, for example, a limit switch (not shown). When the X-ray generator 10 is slid to a desired position, the X-ray generator 10 is engaged with an operation piece of the limit switch and positioned. On the upper surface of the mounting table 29, a protruding piece 29a is formed toward the outside,
It is fixed to the angle 15 by bolting. Note that the X-ray generator 10 may be positioned using a proximity sensor instead of the limit switch.
【0028】次に、本実施の形態の作用について説明す
る。まず、図6に示すように、X線発生器10の箱体1
1の開口11bを放熱器16で密封し、冷却フィン18
を覆うように基板17上に遮蔽部材21を取り付ける。Next, the operation of the present embodiment will be described. First, as shown in FIG.
1 is sealed with a radiator 16 and the cooling fins 18 are closed.
The shielding member 21 is mounted on the substrate 17 so as to cover.
【0029】次に、装置本体2の前面板8を手前に引い
て収納室26を開放する。そして、X線発生器10を載
置台29に載せ、載置台29の嵌合溝30に嵌合部14
を嵌合させる。X線発生器10を搬送方向と直交する奥
行方向にスライドさせ、リミットスイッチの作動片に係
合させて位置決めし、載置台29にX線発生器10を固
定させる。Next, the storage chamber 26 is opened by pulling the front plate 8 of the apparatus main body 2 toward the user. Then, the X-ray generator 10 is placed on the mounting table 29, and the fitting portion 14 is fitted into the fitting groove 30 of the mounting table 29.
Is fitted. The X-ray generator 10 is slid in the depth direction orthogonal to the transport direction, engaged with the operation piece of the limit switch, positioned, and the X-ray generator 10 is fixed to the mounting table 29.
【0030】このとき、遮蔽部材21の両側縁は、図4
及び図7に示すように、一対の角筒体27の対向し合う
他端27bの開口縁と当接し、一対の角筒体27,27
間に連結通路20が連結され、搬送方向に沿った通風路
40を構成する。At this time, both side edges of the shielding member 21 are
As shown in FIG. 7, the pair of rectangular cylinders 27 abut on the opening edges of the other ends 27 b of the pair of rectangular cylinders 27 facing each other.
The connecting passage 20 is connected between the connecting passages to form a ventilation path 40 along the transport direction.
【0031】X線発生器10の位置決めが終了すると、
前面板8を閉鎖し、コンベア3を作動させて被検査物を
搬送させ、X線発生器10からX線を曝射する。そし
て、X線検出器10で曝射したX線の透過量から異物が
含まれているか否かを検出する。When the positioning of the X-ray generator 10 is completed,
The front plate 8 is closed, the conveyor 3 is operated to transport the inspection object, and X-rays are emitted from the X-ray generator 10. Then, the X-ray detector 10 detects whether or not a foreign substance is included based on the amount of transmitted X-rays.
【0032】このとき、X線が絶縁油13と冷却フィン
18を透過して通風路40に漏洩する。漏洩X線は、通
風路40内周面で吸収散乱を繰り返して減衰する。At this time, the X-rays pass through the insulating oil 13 and the cooling fins 18 and leak into the ventilation passage 40. The leaked X-rays are attenuated by repeating absorption and scattering on the inner peripheral surface of the ventilation path 40.
【0033】また、X線曝射を続けるとX線管12が発
熱し、絶縁油13を介して冷却フィン18の一端18a
から通風路40側に突出している他端18bに伝達され
る。そして、通風口27aから外部へ放熱され、冷却フ
ィン18が冷却される。When the X-ray irradiation is continued, the X-ray tube 12 generates heat, and one end 18 a of the cooling fin 18
Is transmitted to the other end 18b protruding toward the ventilation passage 40 side. Then, the heat is radiated to the outside from the ventilation holes 27a, and the cooling fins 18 are cooled.
【0034】従って、このように構成されたX線異物検
出装置1では、冷却フィン18から漏洩したX線を減衰
させることができる。また、冷却フィン18の他端18
bは直線状の通風路40内に位置するため、他の障壁の
ない状態で効率よく放熱することができる。更に、X線
発生器10は、装置本体2に対し着脱自在に構成されて
いるため、X線発生器のメンテナンスを容易に行うこと
ができる。Therefore, in the X-ray foreign matter detector 1 configured as described above, X-rays leaked from the cooling fins 18 can be attenuated. Also, the other end 18 of the cooling fin 18
Since b is located in the linear ventilation path 40, heat can be efficiently radiated without any other barrier. Further, since the X-ray generator 10 is configured to be detachable from the apparatus main body 2, maintenance of the X-ray generator can be easily performed.
【0035】なお、上述した実施の形態において、図8
及び図9に示すように、少なくともいずれか一方の通風
口27aに、冷却手段として冷却ファン機構31を取り
付けてもよい。冷却ファン機構31は、角筒体27の一
端27aの内周面に一対のL字状のアングル32を固定
させ、各アングル32,32の屈曲部内面に冷却ファン
37を当接させてアングル32にネジ33でネジ止めす
る。そして、冷却ファン37をフィルタ34で覆い、フ
ァスナ35を装置本体2側面に係合させて、通風口27
aにルーバー付蓋体36を取り付ける。冷却ファン37
には不図示のコネクタが設けられ、制御室23の制御部
24から配線が引き回されて結線され、電力供給され
る。In the above-described embodiment, FIG.
As shown in FIG. 9, a cooling fan mechanism 31 may be attached to at least one of the ventilation holes 27a as cooling means. The cooling fan mechanism 31 fixes a pair of L-shaped angles 32 to the inner peripheral surface of one end 27 a of the rectangular cylinder 27, and makes the cooling fan 37 contact the inner surfaces of the bent portions of the angles 32, 32 to form the angle 32. With a screw 33. Then, the cooling fan 37 is covered with the filter 34, and the fastener 35 is engaged with the side of the apparatus main body 2, and the ventilation port 27 is
The louvered lid 36 is attached to a. Cooling fan 37
Is provided with a connector (not shown), and wiring is routed from the control unit 24 of the control room 23 to be connected and supplied with power.
【0036】これにより、強制的に通風路40内の換気
を行い、冷却フィン18を冷却してX線発生器10の温
度上昇を抑制することができる。また、通風口27a
は、X線発生器10の収納室26と連通していないた
め、X線が漏洩することなく、X線発生器10の着脱と
は独立して、外部から冷却ファン37及びフィルタ34
の取りつけ・取り外しが可能となり、組立・交換が容易
となる。As a result, it is possible to forcibly ventilate the ventilation passage 40, cool the cooling fins 18, and suppress the temperature rise of the X-ray generator 10. In addition, ventilation opening 27a
Is not in communication with the storage chamber 26 of the X-ray generator 10, so that the X-ray does not leak and the cooling fan 37 and the filter 34
Can be attached and detached, making assembly and replacement easy.
【0037】[0037]
【発明の効果】以上説明したように本発明によるX線異
物検出装置では、X線発生器からの漏洩X線の遮蔽及び
X線発生器の冷却が可能である。As described above, the X-ray foreign matter detection device according to the present invention can shield the leaked X-rays from the X-ray generator and cool the X-ray generator.
【0038】また、通風路を直線状に構成することによ
り、熱伝達部材の冷却率の向上を図ることができる。特
に、通風路の両端開口の少なくともいずれか一方に冷却
機構を設けることにより、更に熱伝達部材の冷却率の向
上を図ることができると共に、X線が漏洩することな
く、X線発生器の着脱とは独立して、外部から冷却ファ
ン及びフィルタの取りつけ・取り外しが可能となり、組
立・交換を容易に行うことができる。Further, by forming the ventilation passage in a straight line, the cooling rate of the heat transfer member can be improved. In particular, by providing a cooling mechanism in at least one of the openings at both ends of the ventilation passage, the cooling rate of the heat transfer member can be further improved, and the X-ray generator can be attached and detached without leaking X-rays. Independently from the above, the cooling fan and the filter can be attached and detached from the outside, so that assembly and replacement can be easily performed.
【0039】更に、放熱器が設けられたX線発生器を通
風路から着脱自在に構成することにより、X線発生器の
メンテナンスの簡素化を図ることができる。Further, the maintenance of the X-ray generator can be simplified by configuring the X-ray generator provided with the radiator so as to be detachable from the air passage.
【図1】本発明によるX線異物検出装置の概略斜視図で
ある。FIG. 1 is a schematic perspective view of an X-ray foreign matter detection device according to the present invention.
【図2】本発明によるX線異物検出装置に収納されるX
線発生器,放熱器及び遮蔽部材の分解斜視図である。FIG. 2 is a view showing X stored in an X-ray foreign matter detection device according to the present invention;
FIG. 3 is an exploded perspective view of a wire generator, a radiator, and a shielding member.
【図3】本発明によるX線異物検出装置の装置本体上部
の正面部分断面図である。FIG. 3 is a front partial cross-sectional view of an upper portion of an apparatus main body of the X-ray foreign matter detection device according to the present invention.
【図4】本発明によるX線異物検出装置の装置本体上部
にX線発生器を収納したときの正面部分断面図である。FIG. 4 is a front partial cross-sectional view of the X-ray foreign matter detection device according to the present invention when an X-ray generator is housed in an upper portion of the device main body.
【図5】同部分側断面図である。FIG. 5 is a partial sectional side view of the same.
【図6】角筒体間に連結通路を結合する前の斜視図であ
る。FIG. 6 is a perspective view before connecting a connection passage between the rectangular cylinders.
【図7】角筒体間に連結通路を結合したときの斜視図で
ある。FIG. 7 is a perspective view when a connection passage is connected between the rectangular cylinders.
【図8】冷却ファン機構の分解側面図である。FIG. 8 is an exploded side view of the cooling fan mechanism.
【図9】冷却ファン機構と取り付けたときの正面部分断
面図である。FIG. 9 is a front partial sectional view when the cooling fan mechanism is attached.
1…X線異物検出装置,10…X線発生器,16…放熱
器,17…基板,18…熱伝達部材,19…連結通路,
20…遮蔽部材,28…筒体,28a…通風口,31…
冷却手段,40…通風路DESCRIPTION OF SYMBOLS 1 ... X-ray foreign substance detection apparatus, 10 ... X-ray generator, 16 ... Radiator, 17 ... Substrate, 18 ... Heat transfer member, 19 ... Connection passage,
20 ... Shielding member, 28 ... Cylinder, 28a ... Ventilation opening, 31 ...
Cooling means, 40 ... ventilation path
Claims (5)
X線を曝射して、前記X線の透過量から前記被検査物中
の異物を検出するX線異物検出装置において、 前記X線発生器から発生する熱を外部へ導く通風路(4
0)と、 該通風路の一部をなすと共に前記X線発生器を密封する
基板(17)と、該基板に貫通して支持され、前記熱を
前記通風路に伝達する熱伝達部材(18)と、を有する
放熱器(16)と、 を具備することを特徴とするX線異物検出装置。1. An X-ray foreign matter detection device that irradiates an X-ray to an inspection object from an X-ray generator (10) and detects a foreign object in the inspection object based on a transmission amount of the X-ray. A ventilation path (4) for guiding heat generated from the X-ray generator to the outside
0), a substrate (17) which forms a part of the ventilation path and seals the X-ray generator, and a heat transfer member (18) supported through the substrate and transmitting the heat to the ventilation path. ) And a radiator (16) having the following.
風口(27a,27a)を有し、前記一方の通風口から
前記他方の通風口に向かって直線状に形成されているこ
とを特徴とする請求項1記載のX線異物検出装置。2. The ventilation path has a pair of ventilation ports (27a, 27a) communicating with the outside, and is formed linearly from the one ventilation port to the other ventilation port. The X-ray foreign matter detection device according to claim 1, wherein:
記X線発生器とともに前記通風路から着脱自在に構成さ
れることを特徴とする請求項2記載のX線異物検出装
置。3. The X-ray foreign matter detection device according to claim 2, wherein the substrate forming a part of the ventilation path is configured to be detachable from the ventilation path together with the X-ray generator.
れた一対の筒体(27,27)と、 前記基板と、該基板と共に前記一対の筒体の間に連結さ
れ、前記基板上の前記熱伝達部材を覆う着脱自在な遮蔽
部材(21)と、からなる連結通路(20)と、 で構成されており、 前記連結通路は、前記放熱器が設けられた前記X線発生
器とともに前記一対の筒体間に着脱自在に構成されるこ
とを特徴とする請求項1記載のX線異物検出装置。4. The air passage has a pair of cylinders (27, 27) each having a ventilation port communicating with the outside and provided in a straight line, the substrate, and the pair of cylinders together with the substrate. And a detachable shielding member (21) for covering the heat transfer member on the substrate, and a connection passage (20) comprising: a connection passage formed by the radiator. 2. The X-ray foreign matter detection device according to claim 1, wherein the X-ray foreign matter detection device is configured to be detachable between the pair of cylindrical bodies together with the provided X-ray generator.
に、前記通風路に設けられている前記熱伝導部材を冷却
する着脱自在な冷却手段(31)を具備することを特徴
とする請求項2〜4のいずれかに記載のX線異物検出装
置。5. A detachable cooling means (31) for cooling the heat conducting member provided in the ventilation passage, in at least one of the ventilation openings. 5. The X-ray foreign matter detector according to any one of 4.
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JP2000134802A JP3691338B2 (en) | 2000-05-08 | 2000-05-08 | X-ray foreign object detection device |
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JP2000134802A JP3691338B2 (en) | 2000-05-08 | 2000-05-08 | X-ray foreign object detection device |
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JP3691338B2 JP3691338B2 (en) | 2005-09-07 |
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