JP4796333B2 - X-ray inspection equipment - Google Patents

Description

  The present invention relates to an X-ray inspection apparatus that irradiates an article with X-rays and inspects foreign matters mixed into the article, abnormal shape of the article, and the like, and belongs to the technical field of article inspection.

  Conventionally, an X-ray source and an X-ray detector are accommodated in a shield box, X-rays are irradiated on the article, and X-rays transmitted through the article are detected. An X-ray inspection apparatus that inspects abnormal shapes and the like is used.

  In such an X-ray inspection apparatus, scattered X-rays generated by irradiating an article with X-rays pass through the entrance and exit provided at both ends of the shield box for carrying in and out the article. In order to cope with this, there is an X-ray inspection apparatus disclosed in Patent Document 1, for example.

  This X-ray inspection apparatus is provided with a shielding curtain as an X-ray leakage prevention member that covers the carry-in port and the carry-out port of the shield box, whereby scattered X-rays to the outside of the device through the carry-in port and the carry-out port can be obtained. Leakage is prevented. Further, the shielding curtain in this case is divided into a plurality of pieces in the width direction to form a goodwill, and is configured to be refracted in multiple stages in the vertical direction, and is carried into the shielding box so that the lower part of the shielding curtain can be pushed away. Since the shielding curtain is refracted and preferably follows the upper surface of the article carried out from the shield box, the gap generated between the upper surface of the article and the shielding curtain is small, and thus X-rays passing through the gap Leakage is further prevented. The shielding curtain is generally made of a flexible rubber material containing lead.

JP 2003-270174 A

  By the way, when an X-ray inspection apparatus such as that described above is inspected while transporting a product containing an article in, for example, a box whose upper surface is open, both front corners of the box are in contact with the shielding curtain. Further, both side edges protruding linearly upward along the transport direction of the box are in sliding contact with the shielding curtain during the passage of the box. As a result, when the number of inspections is accumulated, the weight of the shielding curtain is combined with the generally hard corners and side edges, so that the relatively soft shielding curtain is worn, and further, the wear progresses and breaks. May occur. And there is a possibility that the generated abrasion powder and broken pieces may be mixed into the box or the stored article.

  In addition, in the case of an article having a peripheral edge protruding linearly outward on the entire upper periphery, such as pack-packed pudding, fruit jelly, etc., because the hard and sharp peripheral edge contacts the shielding curtain, If the number of inspections is accumulated, there may be a problem that the shielding curtain is similarly worn and damaged.

  In order to solve the problem, for example, a shielding curtain made of a metal material resistant to abrasion can be applied. In this case, the resistance when the box or the article storing the article pushes the shielding curtain increases. There is a problem that smooth passage of boxes and articles is hindered.

  Therefore, the present invention prevents wear of the X-ray leakage preventing member due to repeated contact of the corners and side edges of the box that is stored and transported, or the peripheral edge of the article, and An object of the present invention is to provide an X-ray inspection apparatus capable of smoothly passing through the X-ray leakage prevention member.

  In order to solve the above problems, the present invention is configured as follows.

First, the invention according to claim 1 is a shield box that houses an X-ray source that irradiates an article with X-rays and an X-ray detector that detects X-rays irradiated from the X-ray source and transmitted through the article. And X-ray leakage prevention means for conveying the article from the carry-in port provided at both ends of the shield box to the carry-out port, and hanging from the carry-in port and the carry-out port to cover the carry-in port and the carry-out port an X-ray examination device having a member, the X-ray leakage preventing member is characterized by comprising a metallic member at a predetermined interval in the width direction, and a flexible member sandwiched between the metal member.

The invention described in Claim 2 is the X-ray inspection apparatus according to claim 1, wherein the flexible member is characterized by being divided into a plurality of members of a predetermined width in the width direction.

According to a third aspect of the present invention, there is provided a shield box that houses an X-ray source that irradiates an article with X-rays and an X-ray detector that detects X-rays emitted from the X-ray source and transmitted through the article. And X-ray leakage prevention means for conveying the article from the carry-in port provided at both ends of the shield box to the carry-out port, and hanging from the carry-in port and the carry-out port to cover the carry-in port and the carry-out port An X-ray inspection apparatus having a member, wherein the X-ray leakage preventing member includes a metal member at a predetermined height in the vertical direction, and upper and lower portions of the metal member are formed of a flexible member. It is characterized by being.

According to a fourth aspect of the present invention, in the X-ray inspection apparatus according to the third aspect , at least one of the flexible members constituting the upper and lower portions of the metal member has a plurality of predetermined heights in the vertical direction. It is divided into members.

According to a fifth aspect of the present invention, in the X-ray inspection apparatus according to any one of the first to fourth aspects, the metal member is made of stainless steel.

First, according to the first aspect of the present invention, for example, even if a hard part such as a front corner of a box containing an article contacts the X-ray leakage prevention member or the side edge of the box Even if a hard part is in sliding contact with the X-ray leakage prevention member, the part that contacts or slides on these parts in the X-ray leakage prevention member is composed of a metal member that is resistant to wear, so that the box or article repeatedly contacts. However, wear is prevented. As a result, the life of the X-ray leakage preventing member is increased, and mixing of broken pieces into boxes and articles when wear powder or wear progresses and breaks is avoided.

  Further, since only a predetermined portion of the X-ray leakage prevention member is made of a metal member and the remaining portion is made of a flexible member, the flexibility of the entire X-ray leakage prevention member is maintained, and thus a box or article Can pass through the X-ray leakage prevention member smoothly.

According to the second aspect of the present invention, since the flexible member sandwiched between the metal members on both sides in the width direction has a divided structure in the width direction, the metal member can be adjusted by adjusting the number of assembly. The interval between them can be adjusted as appropriate. Therefore, for example, it is possible to easily cope with various width dimensions of a box that stores articles as described above and has hard corners and side edges on both sides in the transport direction.

On the other hand, according to the third aspect of the present invention , for example, an effect of preventing wear is exerted on an article having a hard peripheral edge projecting outward on the entire upper periphery. As a result, the X-ray leakage prevention member has a longer life as in the first aspect of the invention, and avoids mixing of broken pieces into articles when wear powder or wear progresses and breaks. Is done. Further, since the X-ray leakage preventing member is composed of a metal member only at a predetermined portion and the remaining portion is composed of a flexible member, the flexibility of the entire X-ray leakage preventing member is maintained, and the article is The X-ray leakage prevention member can be pushed away and passed smoothly.

According to the invention described in claim 4 , since at least one of the flexible members sandwiching the metal member from both the upper and lower sides is divided in the vertical direction, the number of the assembled metal members can be adjusted by adjusting the number of assembly. The height position can be adjusted as appropriate. Therefore, for example, it is possible to easily cope with various height dimensions of an article having a hard peripheral portion on the entire upper periphery as described above.

According to the fifth aspect of the present invention, the metal member is made of stainless steel that is resistant to corrosion, and thus is particularly suitable for an apparatus for inspecting articles such as food.

  The best mode for carrying out the present invention will be described.

  The X-ray inspection apparatus 1 according to the first embodiment shown in FIGS. 1 and 2 includes the presence or absence of foreign matter while conveying the product G containing the articles M... The carry-in conveyor 11, the main-body part 12, and the carry-out conveyor 13 are arrange | positioned in an order from the upstream as a main component.

  The carry-in conveyor 11 carries the product G into the main body 12, while the carry-out conveyor 13 receives and carries the inspected product G from the main body 12, and a general flat belt conveyor is used. Yes. In addition, you may use the thing provided with the distribution function for the carry-out conveyor 13. FIG.

  The main body 12 constitutes an inspection unit for inspecting the product G, and includes a shield box 21, an X-ray source 22, an X-ray detector 23, a transfer conveyor 24, a main power switch 25, an operation panel 26 with a monitor, and a display. A lamp 27 is provided. The commodity G has dimensions of width W, length L, and height H.

  The shield box 21 is generally box-shaped, and as shown in FIG. 3, a carry-in port 21a 'and a carry-out port 21b' through which the product G passes are provided on the vertical walls 21a and 21b on the upstream and downstream sides, respectively. ing.

  The X-ray source 22 is accommodated in the shield box 21 above the transport conveyor 24, and forms an X-ray irradiation area A indicated by a two-dot chain line in the example through a slit mechanism (not shown) while the product G Are irradiated with X-rays (see also FIG. 1). The X-ray detector 23 is a line made up of a number of pixels (not shown) arranged in a row in a direction orthogonal to the transport direction a, disposed opposite to the X-ray source 22 below the upper running surface of the transport conveyor 24. An X-ray having a sensor and transmitting through the product G is detected. Then, when the product G passes through the X-ray irradiation region A, the detection signal from the X-ray detector 23 acquired at a predetermined timing is subjected to image processing, and the contamination of the product G is inspected. It will be.

  Both ends of the flat belt type conveyor 24 protrude slightly from the carry-in port 21a 'and the carry-out port 21b' of the shield box 21, and the carry conveyor 24 receives the inspected product G after receiving it from the carry-in conveyor 11. It is driven by a drive source (not shown) so as to be conveyed and delivered to the carry-out conveyor 13.

  In order to prevent leakage of scattered X-rays from the shield box 21, X-ray leakage prevention units 30, 30 that cover the carry-in entrance 21 a ′ and the carry-out exit 21 b ′ and hang down to the transfer surface of the transfer conveyor 24 are shield boxes. 21 are provided on the upstream side and the downstream side in the area 21, respectively.

  Since the X-ray leakage prevention units 30 and 30 provided on the upstream side and the downstream side have substantially the same configuration, the upstream X-ray leakage prevention unit 30 will be described in detail as an example.

  As shown in FIGS. 3 to 5, the X-ray leakage prevention unit 30 is provided in order to support the first to third X-ray shielding parts 31 to 33 arranged in order from the upstream side and the shield box 21. And a pair of left and right brackets 34, 34.

  As shown in FIGS. 4 and 5, the X-ray shielding portions 31 to 33 are each provided with a single flexible member 35... 35 and a substantially central flexible member 35 disposed on both the left and right sides in the transport direction a and substantially at the center. Metal members 36, 36 adjacent to both the left and right sides. That is, in each X-ray shielding unit 31 to 33, a product G having a width W, a length L, and a height H, which is placed on the transport conveyor 24 and stores the articles M. When it is carried into the shield box 21 while pushing away the lower portions of the X-ray shielding portions 31 to 33 from the mouth 21a ', the front corners Y1 and Y1 of the box Y come into contact with each other or move upward along the transport direction a. A portion where the side edge portions Y2 and Y2 projecting linearly come into sliding contact is constituted by the metal members 36 and 36. The flexible member 35 is made of a rubber material containing lead, while the metal member 36 is made of stainless steel that is slightly thinner than the rubber material.

  By the way, when inspecting the above-mentioned product G, if the flexible member is a goodwill shape, when the product G passes through the flexible member, the relatively narrow lower end of the flexible member is in the box Y. There are cases where the articles M... Enter between the articles M and are pulled between the articles M. On the other hand, in the present embodiment, since each of the flexible members 35 is a relatively wide sheet, the lower end portion thereof is less likely to enter between the articles M.

  As shown in FIG. 4, in each X-ray shielding part 31 to 33, a slight gap B... B is provided between the flexible members 35. Mischievous wear of the soft flexible members 35 ... 35 that are in contact with the members 36, 36 is avoided.

  As shown in FIG. 5, in the X-ray leakage prevention unit 30, the metal members 36 and 36 of the second X-ray shielding part 32 have the first and third X-ray shielding parts 31 and 33 sandwiching the second X-ray shielding part 32. The metallic members 36 are arranged so as to be offset from the metal members 36 in the width direction by a distance C in a plan view, and the leakage of scattered X-rays through the gaps B is reliably prevented.

  Next, the suspension structure of the flexible members 35 ... 35 and the metal members 36, 36 will be described.

  As shown in FIGS. 4 to 6, three long suspension bars 37... 37 having screw holes 37a and 37a (only one is shown in FIG. 6) at both ends, and the screw holes 37a and 37a at both ends. Two short screw rods 38, 38 having screw portions 38 a, 38 a that are screwed to each other are alternately connected with washers 38 b... 38 b sandwiched between them, and are installed between the left and right brackets 34, 34. A flexible member 35 is supported on each suspension bar 37, and a metal member 36 is supported on each screw rod 38. In FIG. 3, the description of the flexible members 35... 35 is omitted and only the metal members 36.

  According to this suspension structure, for example, when the width dimension of the flexible member 35 or the metal member 36 is changed, the suspension bars 37... 37 and the screw rods 38, 38 can be easily connected and released. It is possible to improve workability when changing dimensions.

  As shown in FIGS. 4, 6, and 7, the flexible member 35 is formed by folding the upper portion of the sheet-like main body portion 35a and stitching the bent portion 35b and the main body portion 35a in two places at the top and bottom. ing. A suspension bar 37 is inserted into an upper space that can be formed by providing the stitching portions 35c and 35c.

As shown in FIGS. 4, 6, and 8, the metal member 36 has an upper member 36a and a lower member 36b. As shown in FIGS. 6 and 8, the upper member 36a, the top of the sheet-like main body portion 36a ₁ is the left and right side portions of the main body portion 36a ₁ is bent with bent in a hook shape, and the upper bent portion 36a ₂ and the side bent portions 36a ₃ and 36a ₃ are welded.

Lower member 36b, the upper portion of the sheet-like body portion 36b ₁ is elongated right and left side portions of the upper portion of the main body portion 36b ₁ is bent with bent in a hook shape, the side bent and the upper bent portion 36b ₂ The parts 36b ₃ and 36b ₃ are welded. And it upper bent portion 36b ₂ of the lower member 36b is being interleaved at the bottom between the side bent portion _36a 3, 36a ₃ of the top member 36a, the support pin 36b ₄ are caulked is inserted in the corresponding section Thus, the upper member 36a and the lower member 36b are connected. Then, the space formed by the upper bent portion 36a ₂ of the upper member 36a, the screw rod 38 is inserted. Thus, when the commodity G is conveyed in the arrow a direction displace metal member 36, the metal member 36, for example as shown by the two-dot chain line, mainly in two places between the screw rod 38 and the support pins 36b ₄ Can be swung in two folds.

  Here, the operation of the X-ray inspection apparatus 1 will be described.

  As shown in FIG. 1 to FIG. 3, when a product G storing articles M... M in a box Y whose upper surface is opened is supplied from the upstream carry-in conveyor 11 to the transport conveyor 24 of the main body 12. The product G is conveyed by being pushed away from the lower part of the upstream X-ray leakage prevention unit 30 covering the carry-in entrance 21a 'of the shield box 21, and irradiated with X-rays. The lower part of the leakage prevention unit 30 is pushed away and carried out from the shield box 21 and delivered to the downstream carry-out conveyor 13.

  In that case, as shown in FIG. 4 and FIG. 5, each X-ray shielding portion in which the hard portion such as the front corners Y1 and Y1 of the box Y storing the articles M. Even if it touches 31-33, or even if a hard part like the side edge parts Y2 and Y2 of the box Y is slidably contacted with each X-ray shielding part 31-33, these in each X-ray shielding part 31-33 Since the part that contacts or slides on the part is composed of the metal members 36 ... 36 that are resistant to wear, wear is prevented even if the box Y ... Y contacts repeatedly. As a result, the life of each X-ray shielding part 31 to 33 is increased, and mixing of broken pieces into the box Y or the article M when the wear powder or wear progresses and breaks is avoided.

  Furthermore, since each X-ray shielding part 31-33 is comprised only by the predetermined | prescribed site | part by the metal members 36 ... 36 and the remaining site | part is comprised by the flexible member 35 ... 35, each X-ray shielding part 31-33 whole As a result, the box Y can pass smoothly by pushing away the X-ray shielding parts 31-33.

  Since the metal members 36 ... 36 are made of stainless steel that is resistant to corrosion, it is particularly suitable for an apparatus for inspecting articles such as food.

  Next, an X-ray inspection apparatus according to the second embodiment will be described. It should be noted that the same reference numerals are given to those that are the same as or similar to the above-described components unless particularly confusing, including third and fourth embodiments described later.

As shown in FIG. 9, in the X-ray leakage prevention unit 30 </ b> A in this case, the first X-ray shielding part 31 </ b> A taken up as an example includes the flexible members 35, 35, 35 </ b> A disposed on both the left and right sides and the substantially center. The flexible member 35 </ b> A having the metal members 36 and 36 adjacent to the left and right sides of the flexible member 35 </ b> A and constituting the central portion is divided into _four members 35 </ b> A _{1 to} 35 </ b> A ₄ having a predetermined width w in the width direction. In the configuration of the illustrated example, the product G having the dimensions of the width W, the length L, and the height H that are transported by the transport conveyor 24 is in contact with the metal members 36 and 36 at the front corner of the box Y. At the same time, both side edges are in sliding contact with the metal members 36 and 36.

  Although not shown, when the X-ray leakage prevention units each having a plurality of X-ray shielding portions including the first X-ray shielding portion 31A are disposed at the carry-in entrance 21a 'and the carry-out exit 21b' as described above, According to the arrangement shown in FIG. 5, the metal members 36 and 36 are offset in the width direction, so that the leakage of scattered X-rays is reliably prevented.

On the other hand, as shown in FIG. 10, the size of the product G conveyed by the conveyor 24, that is, the box Y, is the width W ′, the length L, the height H, and the product G having the width W ′ narrower than the width W. in this case, in the 1X-ray shielding portion 31A, interchanging the dividing member 35A ₁ and the adjacent left metal member 36 causes adjacent the said division member 35A ₁ and the left soft member 35, the right side of the metal member 36 box Y and interchanging the dividing member 35A ₄ adjacent to adjacent the said division member 35A ₄ and right flexible members 35, and as it is two split members _35A 2, 35A ₃ of the central portion, the width W ' The front corners of the metal plate 36 are in contact with the metal members 36 and 36 at a new installation position, and both side edges are in sliding contact with the metal members 36 and 36.

  According to this, as shown in FIG. 9, since the flexible member 35A sandwiched between the metal members 36 on both sides in the width direction has a divided structure in the width direction, as shown in FIG. The interval between the metal members 36 and 36 can be adjusted as appropriate by adjusting the number of the assemblies. Therefore, it is possible to easily cope with various width dimensions of the box Y that accommodates the articles M... M as described above and has hard corners and side edges on both sides in the transport direction a.

  Next, an X-ray inspection apparatus according to the third embodiment will be described.

As shown in FIG. 11, in the X-ray leakage prevention unit 30B in this case, the first X-ray shielding portion 31B taken up as an example has a central portion sandwiched between the left and right flexible members 35, 35, and the upper and lower flexible members 35B ₁ , 35B ₂ and a metal member 36B sandwiched between them. In the example configuration, the article M conveyed by the conveyor 24 has a width W and a height H, and has a hard peripheral edge M1 projecting linearly outward on the entire upper periphery. It has a truncated cone shape, and its peripheral edge portion M1 is in contact with the metal member 36B.

As shown in FIGS. 11 and 12, in the first X-ray shielding part 31B, metal is formed in three notches 35B ₁ ″... 35B ₁ ″ provided in the lower bent part 35B ₁ ′ of the upper flexible member 35B _1. with Komu put the same number of bent portions 36B '... 36B' provided on the upper portion of the member 36B, the bent portion _35B 1 ', 36B' ... upper flexible member 35B ₁ and the metal member through the space 36B ' A long support pin 39 for connecting 36B to the hinge is inserted. Similarly, the lower flexible member 35B ₂ of the upper bent portion 35B ₂ 'of the three provided in the notch _{35B 2} "... _35B 2" to the same number of bent portions 36B provided in the lower portion of the metal member 36B' ... 'with Komu put, the bent portion _35B 2' 36B, 36B '... 36B' elongated space through connecting the metal member 36B and the lower flexible member 35B ₂ the hinge-like support pin 39 is inserted Has been. In FIG. 11, the description of the stitched portions in the flexible members 35, 35, 35 B ₁ , 35 B ₂ is omitted to avoid complication of the drawing.

  According to this, even if a hard part such as the peripheral part M1 of the article M contacts the X-ray shielding part 31B, the part in contact with the X-ray shielding part 31B is configured by the metal member 36B that is resistant to wear. Therefore, even if the article M ... M repeatedly contacts, wear is prevented. As a result, the life of the X-ray shielding part 31B is increased, and mixing of damaged pieces into the article M when the wear powder or wear progresses and breaks is avoided.

  Next, an X-ray inspection apparatus according to the fourth embodiment will be described.

As shown in FIGS. 13 and 14, in the X-ray leakage prevention unit 30 </ b> C in this case, the first X-ray shielding part 31 </ b> C taken up as an example is an upper flexible part at the center portion sandwiched between the left and right flexible members 35 and 35. and the two of member 35C ₁ is divided dividing member _35C 11, _{35C 12,} two _35C 21, _{35C 22} that the flexible member 35C ₂ of the lower, which are divided, sandwiched flexible member _35C 1, 35C ₂ of the upper and lower Metal member 36C. Further, each of the divided members 35C ₁₁ , 35C ₁₂ , 35C ₂₁ , 35C ₂₂ has a predetermined height h. In the configuration of the example shown in the figure, the article M conveyed by the conveyor 24 has a hard peripheral portion M1 having a width W and a height H and projecting linearly outwardly on the entire upper periphery. It has an inverted frustoconical shape, and its peripheral edge portion M1 contacts the metal member 36C. Incidentally, the connecting structure between the divided member _{35C 11, 35C 12, 35C 21} , 35C 22 and the metal member 36C is substantially according to FIGS. 11 and 12, the description thereof is omitted.

On the other hand, as shown in FIG. 15, in the case of an article M having a width W, a height H ′, and a height H ′ lower than the height H, the dimensions of the article M conveyed by the conveyor 24 are In the 1X-ray shielding portion 31C, the metal member 36C and the divided member 35C ₂₁ are replaced, and the remaining three divided members 35C ₁₁ , 35C ₁₂ , and 35C ₂₂ are left as they are, and the peripheral portion M1 of the article M having the height H ′ is The metal member 36C at a new installation position is brought into contact. In FIG. 13 and FIG. 15, the description of the stitched portions in the flexible members 35, 35, 35 C ₁₁ , 35 C ₁₂ , 35 C ₂₁ , 35 C ₂₂ is omitted in order to avoid complication of the drawings.

According to this, as shown in FIG. 13, the flexible members 35C ₁ and 35C ₂ sandwiching the metal member 36C from both the upper and lower sides are divided in the vertical direction. Therefore, as shown in FIG. The height position of the metal member 36C can be adjusted as appropriate by adjusting the attached number. Therefore, it is possible to easily cope with various height dimensions of the article M having a hard peripheral edge on the entire upper periphery as described above.

  It should be noted that the present invention is not limited to the above-described embodiment that has been specifically described in detail, and may be any that are within the spirit of the present invention. For example, each X-ray leakage prevention unit 30 includes three X-ray shielding units 31 to 33, but the number thereof may be increased or decreased as appropriate.

When the flexible member is divided, the flexible member is divided into four in the width direction in the second embodiment and two in the vertical direction in the fourth embodiment, but the number of divisions can be set as appropriate. . Further, in the fourth embodiment, the flexible members 35C ₁ and 25C ₂ sandwiching the metal member 36C from above and below are each divided into two, but only one of them may have a divided structure.

  As described above, according to the present invention, wear of the X-ray leakage preventing member due to repeated contact of the corners and side edges of the box that stores and conveys the article or the peripheral edge of the article is prevented. In addition, an X-ray inspection apparatus is provided in which a box or an article can smoothly pass through the X-ray leakage prevention member. That is, the present invention relates to an X-ray inspection apparatus that inspects an article for X-ray irradiation, contamination inspection of the article, abnormal shape of the article, and the like, and is widely applicable to the technical field of article inspection.

1 is a side view of an X-ray inspection apparatus according to a first embodiment of the present invention. It is also a plan view. It is a sectional side view which extracts and shows the principal part of a main-body part. It is a front view of the X-ray leakage prevention unit installed in the carrying-in side. It is also a plan view. It is a figure which expands and shows a part of FIG. It is sectional drawing by the II-II line of FIG. It is sectional drawing by the III-III line of FIG. It is a front view of the X-ray leakage prevention unit which concerns on the 2nd Embodiment of this invention. It is a front view of the X-ray leakage prevention unit according to a box with a small width dimension. It is a front view of the X-ray leakage prevention unit which concerns on the 3rd Embodiment of this invention. It is an expanded sectional view by the IV-IV line of FIG. It is a front view of the X-ray leakage prevention unit which concerns on the 4th Embodiment of this invention. It is an expanded sectional view by the VI-VI line of FIG. It is a front view of the X-ray leakage prevention unit according to the article | item with a small height dimension.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 X-ray inspection apparatus 21 Shield box 21a 'Carry-in port 21b' Carry-in port 22 X-ray source 23 X-ray detector 24 Conveyor (conveyance means)
31, 31A-31C 1st X-ray shielding part (X-ray leakage prevention member)
32 2nd X-ray shielding part (X-ray leakage prevention member)
33 3rd X-ray shielding part (X-ray leakage prevention member)
_{35,35A 1 ~35A 4, 35B 1,} 35B 2, 35C 11, 35C 12, 35C 21, 35C 22 flexible member 36,36B, 36C metallic member G items M article Y box

Claims (5)

A shield box that houses an X-ray source that irradiates an article with X-rays and an X-ray detector that detects X-rays that are emitted from the X-ray source and transmitted through the article, and provided at both ends of the shield box An X-ray inspection apparatus comprising transport means for transporting an article from a carry-in port to a carry-out port, and an X-ray leakage prevention member that is suspended from the carry-in port and the carry-out port and covers the carry-in port and the carry-out port ,
The X-ray leakage preventing member, X-ray examination apparatus, characterized in that it comprises a metallic member at a predetermined interval in the width direction, and a flexible member sandwiched between the metal member. The X-ray inspection apparatus according to claim 1,
The X-ray inspection apparatus , wherein the flexible member is divided into a plurality of members having a predetermined width in the width direction . A shield box that houses an X-ray source that irradiates an article with X-rays and an X-ray detector that detects X-rays that are emitted from the X-ray source and transmitted through the article, and provided at both ends of the shield box An X-ray inspection apparatus comprising transport means for transporting an article from a carry-in port to a carry-out port, and an X-ray leakage prevention member that is suspended from the carry-in port and the carry-out port and covers the carry-in port and the carry-out port ,
The X-ray leakage prevention member is configured with a metal member at a predetermined height in the vertical direction,
An X-ray inspection apparatus, wherein upper and lower portions of the metal member are made of a flexible member . The X-ray inspection apparatus according to claim 3 ,
At least one of the flexible members constituting the upper and lower portions of the metal member is divided into a plurality of members having a predetermined height in the vertical direction . In the X-ray inspection apparatus according to any one of claims 1 to 4 ,
The X-ray inspection apparatus , wherein the metal member is made of stainless steel .

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