JP2012037482A - X-ray inspection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an X-ray inspection device which can be easily attached to and detached from an existing line and can surely prevent leakage of X-rays.SOLUTION: An X-ray inspection device 100 includes: connection units 120 and 130 attachable to and detachable from an existing top chain type conveyor 900; and a common unit 110 disposed beside the connection units 120 and 130. The connection units 120 and 130 include: leakage preventing covers 911 and 912 having a carry-in port 911A and a carry-out port 912A through which an article B is carried into and out from the common unit 110; and a receiving part 600 and a delivery part 800 which carry the article B to and from the common unit 110.

Description

  The present invention relates to an X-ray inspection apparatus.

  Conventionally, the presence / absence inspection of foreign matter in an inspection object has been performed using an X-ray source. In the inspection, an X-ray inspection apparatus is used.

  For example, Patent Document 1 discloses an X-ray inspection apparatus that can stably transport an inspection object that is easily toppled, has a low risk of X-ray leakage, and does not have an excessively long captain and requires a small installation space.

  In the X-ray inspection apparatus described in Patent Literature 1, an X-ray shielding structure case, an X-ray generation unit that irradiates an inspection object provided in the case and carried into the case, and a case An X-ray detection means provided for detecting X-rays transmitted through the object to be inspected, a conveying means for passing the object from the front stage of the casing to the rear stage of the casing, and the outside of the casing In the X-ray inspection apparatus provided with the X-ray shielding structure cover that covers the transfer means, the end face of the cover that intersects the transfer direction of the object to be inspected by the transfer means is closed in at least one of the front and rear stages of the housing. An opening is formed in one of the pair of wall surfaces of the cover that is near the end surface and parallel to the transport direction, and is inspected by the X-ray inspection apparatus along the transport direction that is parallel and does not coincide with the transport direction of the transport means. Convey through the opening of the cover to the end of the external conveying means End of the stage has juxtaposed, in which the object to be inspected between an external conveying means and the conveying means through the opening is configured to possess.

JP 2010-91324 A

  The X-ray inspection apparatus of Patent Document 1 has an advantage that it is not necessary to consider the X-ray inspection process from the design stage, but it is necessary to separate the middle of the continuous conveyance means when actually attaching. In order to install the X-ray inspection apparatus at the separated location (see paragraph 0030), it is necessary to reconstruct the existing line conveying means. Alternatively, it is necessary to extend the existing line by the amount of the X-ray inspection apparatus that interposes the existing line.

  Therefore, an object of the present invention is to provide an X-ray inspection apparatus that can be easily attached to and detached from an existing line and that can reliably prevent X-ray leakage.

(1)
An X-ray inspection apparatus according to one aspect is an X-ray inspection apparatus that performs X-ray inspection by irradiating an object to be inspected with X-rays, a connection unit that can be attached to and detached from a communication portion of an existing line, and a connection unit And a common unit arranged on the side of the joint unit, the connection unit is a carrying-in / out-leakage prevention cover having a loading / unloading port for loading / unloading the object to / from the common unit, and a coupled transport for loading / unloading the object to / from the common unit And the common unit includes an X-ray in a direction away from the carry-in / out port with respect to the main transport unit that forms an inspection line arranged in parallel with the existing line, and the inspection object transported by the main transport unit. And an X-ray sensor for detecting X-rays emitted from the X-ray source.

In this case, the common unit can be connected to the communication portion of the existing line via the connecting unit, and the inspection line can be easily provided. That is, the inspection line can be provided from the side without separating or modifying the existing line.
In addition, since the X-ray source emits X-rays in a direction away from the loading / unloading port, X-rays irradiated from the X-ray source can be prevented from leaking directly from the loading / unloading port, and further to the X-ray source. Even if the line repeats irregular reflection, it is possible to secure a distance enough to attenuate the X-ray.
Furthermore, according to the said structure, a to-be-inspected object can also be conveyed to an existing line by removing an inspection line. That is, in the case of an inspection object that does not require X-ray inspection of the inspection object, the inspection object can be transported to an existing line.

(2)
In the second invention, the main transport unit of the X-ray inspection apparatus transports the inspection object in an arc shape.

In this case, since the main conveyance unit conveys the inspection object in an arc shape, the inspection object can be separated from the existing line, and X-rays irradiated from the X-ray source are irregularly reflected on the inspection object. Even if it exists, it can prevent that an X-ray leaks from a carrying in / out port.
Furthermore, since the object to be inspected can be smoothly conveyed in an arc shape, even if the object to be inspected has a higher height ratio than the bottom surface, that is, a tall object, it can be stably conveyed to perform X-ray inspection. It can be performed.

(3)
In the third invention, the main transport section of the X-ray inspection apparatus has one or more turntables whose top surface is only a flat surface.

  In this case, since the main transport unit is formed of one or a plurality of rotary tables whose top surface is only a flat surface, the inspection object can be transported by rotating the rotary table. Further, by using a rotary table whose top surface is only a flat surface, it is possible to deal with objects of various sizes. Thereby, an X-ray inspection apparatus can be attached to various existing conveyors, and versatility of the X-ray inspection apparatus can be enhanced. Furthermore, by using the rotary table, a smooth inspection line can be formed, and the object to be inspected can be moved smoothly.

(4)
In a fourth aspect of the invention, the connecting and conveying unit of the X-ray inspection apparatus has a guide guide for guiding the inspection object between the existing line and the inspection line, and the guide guide is configured to connect the inspection object to the existing line and the inspection line. A selection unit that selects any one of the lines is included.

  In this case, by selecting at least one of the existing line and the inspection line by the selection unit, the inspection object can be conveyed to either one of the lines. As a result, it is possible to perform X-ray inspection only on specific inspection objects for various inspection objects that are easily transported on existing lines, and do not perform X-ray inspection on inspection objects other than specific ones. be able to.

It is the front view which showed the external appearance of the X-ray inspection apparatus which concerns on 1st Embodiment of this invention. It is a schematic plan view which shows an example of schematic structure of a X-ray inspection apparatus. It is a typical side view for demonstrating the outline of a X-ray inspection apparatus. It is a schematic diagram for demonstrating the state which attaches a connection unit to a common unit. It is a schematic diagram for demonstrating the state which attaches an X-ray inspection apparatus to the existing top chain type conveyor. It is a schematic plan view which shows the other example of schematic structure of a X-ray inspection apparatus. It is a schematic diagram for demonstrating the state which attaches a connection unit to a common unit. It is a schematic diagram for demonstrating the state which attaches an X-ray inspection apparatus to the existing top chain type conveyor.

  Hereinafter, an X-ray inspection apparatus according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a description will be given by exemplifying an inspected object whose side surface in the vertical direction is relatively larger than the bottom surface.

(First embodiment)
First, as shown in FIGS. 1 and 2, it is assumed that the conveying direction of the article B in the existing top chain type conveyor 900 is the X direction. Further, the vertical direction is assumed to be the Z direction, and the direction orthogonal to the X direction in the horizontal plane is assumed to be the Y direction.

  The existing top chain type conveyor 900 includes a series of conveyors. The X-ray inspection apparatus 100 is attached to the top chain type conveyor 900 from the direction of arrow Y as will be described later.

  The X-ray inspection apparatus 100 in FIG. 1 inspects the article B conveyed by the top chain type conveyor 900. The inspection includes inspection of foreign matters contained in the article B, inspection of the number of individuals when the article B is composed of a plurality of individuals (shortage inspection), and inspection of the capacity when the article B is drinking water ( Liquid level inspection), and inspection or inspection of the article B for cracks or chips.

  The X-ray inspection apparatus 100 shown in FIG. 2 includes a common unit 110 and connecting units 120 and 130.

  The common unit 110 mainly includes an X-ray inspection unit 700, a housing 910 having an X-ray leakage prevention structure, and a display unit 920 (see FIG. 1). The connection unit 120 includes a receiving unit 600 and a leakage prevention cover 911, and the connection unit 130 includes a delivery unit 800 and a leakage prevention cover 912.

As shown in FIGS. 2 and 3, the receiving unit 600 of the connecting unit 120 has a structure corresponding to the top chain type conveyor 900 according to the first embodiment. The receiving unit 600 includes a receiving table 611, a rotating shaft 612, a first motor 613, and a guide guide plate 614.
The delivery unit 800 of the connection unit 130 also has a structure corresponding to the top chain type conveyor 900 according to the first embodiment. The delivery unit 800 includes a delivery table 811, a rotating shaft 812, a third motor 813, and a guide guide plate 814. Note that the reference numerals in parentheses in FIG. 3 are shown to show the relationship of the delivery unit 800 having the same configuration as that of the reception unit 600.

On the other hand, the X-ray inspection unit 700 of the common unit 110 includes an X-ray source 200, a line sensor 400, a control unit 500, an inspection table 711, a rotating shaft 712, a second motor 713, and a defective product box 714 (FIG. 1 or FIG. 2). See).
In addition, the top surface of the receiving table 611, the inspection table 711, and the delivery table 811 in this embodiment consists of a horizontal plate member, and the partition plate is not provided in the top surface. Hereinafter, each structure of the common unit 110 and the connection units 120 and 130 will be described in detail.

(Receiving part of the consolidated unit)
As shown in FIGS. 2 and 3, the receiving unit 600 is provided to receive the article B from the top chain type conveyor 900. Therefore, the receiving unit 600 is constructed with a structure capable of receiving the article B from the top chain type conveyor 900. In the present embodiment, a first motor 613 is attached to one end side of a rotating shaft 612 provided vertically, and a receiving table 611 having a horizontal surface is attached to the other end side of the rotating shaft 612. The receiving table 611 is made of a disc whose top plate is only a horizontal plane. On the receiving table 611, a guide guide plate 614 for guiding the article B on the top chain type conveyor 900 from the receiving table 611 to the inspection table 711 is provided. In the present embodiment, the guide guide plate 614 is detachably provided.

(Common unit X-ray inspection department)
Subsequently, as shown in FIGS. 2 and 3, the X-ray inspection unit 700 irradiates the article B received from the receiving unit 600 with X-rays. That is, the X-ray inspection unit 700 performs an X-ray inspection of the article B using the X-ray.
A second motor 713 is attached to one end side of the rotating shaft 712 provided vertically. In addition, an inspection table 711 having a horizontal surface is attached to the other end side of the rotating shaft 712. The inspection table 711 made of CFRP (carbon fiber) places the article B received from the receiving unit 600 in the vicinity of the outer peripheral end of the upper surface of the inspection table 711 along the rotation direction (−R1 direction) of the inspection table 711. Transport.

(Common unit X-ray source)
Subsequently, the X-ray source 200 is provided above the inspection table 711. The X-ray source 200 is provided so as to irradiate the article B placed on the placement surface of the inspection table 711 with X-rays. The X-ray source 200 irradiates X-rays from the substantially center direction of the inspection table 711 toward the outside in the radial direction and away from the top chain type conveyor 900. That is, in this embodiment, X-rays are irradiated along the direction of arrow Y. X-rays emitted from the X-ray source 200 are incident on the line sensor 400.
In the present embodiment, the X-ray source 200 is provided such that the center of the X-ray irradiation field is inclined in the range from 5 degrees to 45 degrees downward from the horizontal plane. Thereby, in the case of the whole article | item B and liquid accommodation, a liquid level and a bottom face can be test | inspected entirely.

(Common unit line sensor)
The line sensor 400 detects X-rays emitted from the X-ray source 200 and outputs a detection signal to the control unit 500. In the present embodiment, X-rays are emitted from the X-ray source 200 in a direction away from the existing top chain type conveyor 900 (in the direction of arrow Y), so that the line sensor 400 is separated from the top chain type conveyor 900. It is arranged along the vertical direction.

(Control unit of common unit)
As shown in FIG. 3, a control unit 500 is built in the housing 910. The controller 500 is provided so that signals can be transmitted and received between the first motor 613, the second motor 713, and the third motor 813. The control unit 500 is provided so that signals can be transmitted to and received from the X-ray source 200 and signals from the line sensor 400 can be received. The controller 500 controls on / off of the cooler 950 that cools the X-ray source 200. The cooler 500 is provided in a vertically upward direction (in the direction of arrow Z) of the top chain type conveyor 900 and is provided at a position higher than the height of the article B.
In addition, when the control unit 500 determines that the result of the X-ray inspection is defective, the control unit 500 operates the bar 715 to put the article B into the defective product box 714.

  The control unit 500 creates an X-ray transmission image based on the detection signal from the line sensor 400 and displays it on the display unit 920 (see FIG. 1), and inspects the article B based on the X-ray transmission image. I do. The defective product in the article B inspected by the control unit 500 is not transferred to the delivery unit 800 described later, but is dropped from the surface of the inspection table 711 by the rod 715 shown in FIG. (See FIGS. 1 and 2).

(Connection unit delivery section)
As shown in FIGS. 2 and 3, the delivery unit 800 is provided to deliver the article B, which is determined to be a non-defective product by the X-ray inspection unit 700, from the inspection table 711 to the top chain type conveyor 900. Therefore, the delivery unit 800 is constructed with a structure capable of delivering the article B to the top chain type conveyor 900. In the present embodiment, the article B is returned to the same conveyor on the downstream side of the top chain type conveyor 900 received by the receiving unit 600.
In the present embodiment, a third motor 813 is attached to one end side of a rotating shaft 812 provided vertically, and a delivery table 811 having a horizontal surface is attached to the other end side of the rotating shaft 812. As for the delivery table 811 which concerns on this embodiment, a top plate consists of disk shape. On the delivery table 811, a guide guide plate 814 for guiding the article B on the inspection table 711 from the delivery table 811 to the top chain type conveyor 900 is provided. In the present embodiment, the guide guide plate 814 is detachably provided.

(Common unit housing)
As shown in FIGS. 1 and 2, the housing 910 is provided so as to cover the X-ray source 200 and has an X-ray shielding structure so that X-rays do not leak outside the housing 910. Therefore, even when X-rays irradiated from the X-ray source 200 are irregularly reflected, most of the irregularly reflected X-rays can remain in the housing 910.

(Connection unit housing)
The leakage prevention cover 911 and the leakage prevention cover 912 are provided so as to be connectable to the housing 910. Further, the leakage prevention cover 911 is provided with a carry-in port (opening) 911A for carrying the article B into the receiving unit 600, and the leakage prevention cover 912 has a carry-out port 912A (opening) for carrying the article B from the delivery unit 800. Part) is provided.
In the present embodiment, the carry-in port 911A and the carry-out port 912A open in a direction (in the direction of arrow X) orthogonal to the X-ray irradiation direction (in the direction of arrow Y) in plan view.
Further, as a result, the primary ray reflected by the X-rays emitted from the X-ray source 200 (the one reflected once by the X-rays emitted from the X-ray source 200) is directly applied to the carry-in port 911A and the carry-out port 912A. To prevent leakage. With the above configuration, it is not necessary to provide predetermined X-ray shielding means such as a leakage prevention curtain that obstructs the article B at the carry-in entrance 911A and the carry-out exit 912A.

(Attaching method of X-ray inspection equipment to existing top chain type conveyor)
Next, a state where the X-ray inspection apparatus 100 is attached to the top chain type conveyor 900 will be described.

  First, connection units 120 and 130 corresponding to the existing top chain type conveyor 900 are selected from among a large number of connection units. Next, connecting unit 120 is connected from the side of common unit 110 (in the direction of arrow 120R in the figure), and connecting unit 130 is connected from the side of common unit 110 (in the direction of arrow 130R in the figure). Then, the X-ray inspection apparatus 100 is formed.

  Next, as shown in FIG. 5, the X-ray inspection apparatus 100 is connected to the existing top chain type conveyor 900 from the side (arrow Y direction). Thereby, as shown in FIG. 2, the X-ray inspection apparatus 100 can be easily added to the top chain type conveyor 900.

  In this case, the height adjustment for adjusting the heights of the receiving table 611, the inspection table 711, the delivery table 811, the X-ray source 200, the line sensor 400, and the like of the X-ray inspection apparatus 100 with respect to the top chain type conveyor 900. A mechanism (not shown) is provided. The height adjustment mechanism adjusts the heights of the receiving table 611, the inspection table 711, the delivery table 811, the X-ray source 200, the line sensor 400, and the like so as to match the height of the top chain type conveyor 900. The X-ray inspection apparatus 100 is inserted into the chain type conveyor 900.

(Operation of X-ray inspection equipment)
Next, an example of the operation of the X-ray inspection apparatus 100 shown in FIGS. 2 and 3 will be described.

  As shown in FIGS. 2 and 3, the article B conveyed on the top chain type conveyor 900 along the direction of the arrow HL <b> 1 is moved to the receiving table 611 side by the guide guide plate 614 of the receiving unit 600. In this case, the article B passes between the pair of guide guide plates 614 along the direction of the arrow HL2, and is placed on the receiving table 611.

  The article B placed on the receiving table 611 is transferred in the direction of the arrow HL3 when the receiving table 611 rotates in the direction of the arrow R1, and is delivered to the inspection table 711.

  When the inspection table 711 rotates in the direction of the arrow -R1, the article B placed on the inspection table 711 moves on the inspection table 711 along the direction of the arrow HL4, and X-rays are emitted from the X-ray source 200. Irradiated.

Then, the article B for which the X-ray inspection is completed moves on the inspection table 711 along the direction of the arrow HL5. At this time, the article B determined as a defective product by the above-described X-ray inspection is dropped into the defective product box 714 by the rod 715. On the other hand, the article B determined to be a non-defective product by the X-ray inspection passes between the pair of guide guide plates 814 along the direction of the arrow HL6 and is placed on the delivery table 811.
The article B placed on the delivery table 811 is transferred in the direction of the arrow HL7 as the delivery table 811 rotates in the direction of the arrow R1. In this case, the article B passes between the pair of guide guide plates 814 and is returned to the received top chain type conveyor 900.

  Moreover, in this Embodiment, when not performing the X-ray inspection process process of the article | item B, a pair of guide guide plate 614,814 can be removed. As a result, the article B conveyed along the direction of the arrow HL1 on the top chain type conveyor 900 is conveyed on the top chain type conveyor 900 in the direction of the arrow HL1.

(Effect in this embodiment)
As described above, in the X-ray inspection apparatus 100 according to the present embodiment, the common unit 110 is connected to the existing top chain conveyor 900 via the coupling units 120 and 130, and the arrows HL3, HL4 and Inspection lines for HL5 and HL6 can be added. That is, the inspection line can be provided from the direction of the arrow Y without separating or modifying the existing top chain type conveyor 900.

  In addition, since the X-ray source 200 emits X-rays in a direction away from the carry-in entrance 911A and the carry-out exit 912A, the X-rays emitted from the X-ray source 200 are directly emitted from the carry-in entrance 911A and the carry-out exit 912A. Leakage can be prevented. Further, since the inspection table 711 conveys the article B in an arc shape, the article B can be separated from the existing top chain conveyor 900, and the X-rays irradiated from the X-ray source 200 are irregularly reflected on the article B. Even in this case, X-ray leakage from the carry-in entrance 911A and the carry-out exit 912A can be prevented.

  Furthermore, by using the inspection table 711 whose top surface is only a flat surface, not only the article B but also various sizes of articles can be handled. Thereby, the X-ray inspection apparatus 100 can be attached to various existing top chain type conveyors 900, and the versatility of the X-ray inspection apparatus 100 can be enhanced. Furthermore, since a smooth arc-shaped inspection line can be formed by using the inspection table 711, the article B can be transported smoothly and stably.

  Further, according to the present embodiment, the X-ray inspection apparatus 100 is removed in the direction of the arrow -Y or the pair of guide guide plates 614 and 814 is removed, so that the X-ray inspection is not performed and the existing top chain type is used. The article B can also be conveyed on the conveyor 900. That is, when the X-ray inspection of the article B is unnecessary, the article B can be easily conveyed to the top chain type conveyor 900.

<Correspondence between each component of claims and each part of the embodiment>
In the above embodiment, the article B corresponds to the inspection object, the X-ray inspection apparatus 100 corresponds to the X-ray inspection apparatus, the existing top chain conveyor 900 corresponds to the existing line, and the connection units 120 and 130 are Corresponding to the connecting unit, the common unit 110 corresponds to the common unit, the carry-in port 911A and the carry-out port 912A correspond to the carry-in / out port, the leakage prevention covers 911 and 912 correspond to the carry-in / out leakage prevention cover, the receiving table 611 and The delivery table 811 corresponds to the connected transport unit, the directions of arrows HL3, HL4, HL5, and HL6 correspond to the inspection line, the inspection table 711 corresponds to the main transport unit, and the direction of the arrow -Y moves away from the loading / unloading port. X-ray source 200 corresponds to an X-ray source, line sensor 400 corresponds to an X-ray sensor, and inspection table 711 is a rotary table. It corresponds to Le, a pair of guide guide plates 614,814 is equivalent to the guides.

(Second Embodiment)
In the X-ray inspection apparatus 100 according to the first embodiment described above, the example in which the X-ray inspection apparatus 100 is attached to the existing top chain type conveyor 900 and the article B is inspected is described. The X-ray inspection apparatus 100a according to the embodiment will be described with respect to an example in which the X-ray inspection apparatus 100 is attached to an existing L-type top chain conveyor 900a of a different type and the X-ray inspection of the article B is performed. In the second embodiment, portions different from the first embodiment will be mainly described.

  As shown in FIG. 6, the X-ray inspection apparatus 100a according to the second embodiment includes a common unit 110 and connection units 120a and 130a.

  The common unit 110 mainly includes an X-ray inspection unit 700, a housing 910 having an X-ray leakage prevention structure, and a display unit 920 (see FIG. 6). The connection unit 120a includes a receiving portion 600a and a leakage prevention cover 913, and the connection unit 130a includes a delivery portion 800a and a leakage prevention cover 914.

As shown in FIG. 6, the receiving part 600 of the connection unit 120a has a structure corresponding to the L-type top chain conveyor 900a according to the second embodiment. The receiving unit 600a includes a linear top chain type conveyor 611a, a guide guide plate 614a, a star wheel 618a, and a support plate 619a.
Moreover, the delivery part 800a of the connection unit 130a also has a structure corresponding to the L-type top chain type conveyor 900a according to the second embodiment. The delivery unit 800a includes a linear top chain type conveyor 811a, a guide guide plate 814a, and a guide guide plate 814a.

On the other hand, the common unit 110 is the same as the common unit of the first embodiment. Therefore, the X-ray inspection unit 700 includes the X-ray source 200, the line sensor 400, the control unit 500, the inspection table 711, the rotating shaft 712, the second motor 713, and the defective product box 714.
Hereinafter, each structure of the common unit 110 and the connection units 120 and 130 will be described in detail.

(Receiving part of the consolidated unit)
As shown in FIG. 6, the receiving part 600a is provided to receive the article B from the L-type top chain type conveyor 900a. Therefore, the receiving part 600a is constructed with a structure capable of receiving the article B from the L-type top chain type conveyor 900a. In the present embodiment, a star wheel 618a is provided on the L-type top chain type conveyor 900a, and a support plate 619a is provided below the star wheel 618a. Further, the article B conveyed by the star wheel 618a is conveyed by the pair of guide guide plates 614a and the linear top chain type conveyor 611a. In the present embodiment, the guide guide plate 614a is provided so as to be controllable by the control unit 500 so that the article B can be conveyed to either the L-type top chain conveyor 900a or the straight top chain conveyor 611a. Specifically, when the guide guide 614a moves in the direction opposite to the arrow Y, the article B can be continuously conveyed by the L-type top chain conveyor 900a, and the guide guide 614a moves in the direction of the arrow Y. Thus, the article B can be conveyed by the straight top chain type conveyor 611a.

(Connection unit delivery section)
As shown in FIG. 6, the delivery unit 800 a is provided to deliver the article B, which is determined as a non-defective product by the X-ray inspection unit 700, from the inspection table 711 to the L-type top chain conveyor 900 a. Therefore, the delivery unit 800a is constructed with a structure capable of delivering the article B to the L-type top chain type conveyor 900a.
In the present embodiment, the article B is returned to the same conveyor on the downstream side of the L-type top chain conveyor 900a received in the receiving section 600a.

  In the present embodiment, a guide guide plate 814a that receives the article B on the inspection table 711 and guides the article B from the straight top chain type conveyor 811a to the top chain type conveyor 900 is provided. The guide guide plate 814a receives the article B, transports it in the Y direction, and then transports it in the Y direction while moving it in the X direction.

(Connection unit housing)
The leakage prevention cover 913 and the leakage prevention cover 914 are provided so as to be connectable to the housing 910. Further, the leakage prevention cover 913 is provided with a carry-in entrance (opening) 911A for carrying the article B into the receiving portion 600a, and the leakage prevention cover 914 is provided with a carry-out exit 912A (opening) for carrying out the article B from the delivery portion 800a. Part) is provided.
In the present embodiment, the carry-in entrance 911A opens in a direction (in the direction of arrow X) orthogonal to the X-ray irradiation direction (in the direction of arrow Y) in plan view, and the carry-out port 912A in X-ray irradiation in plan view. The direction (direction of arrow Y) is opened in the direction offset in parallel.
Further, as a result, the primary ray reflected by the X-rays emitted from the X-ray source 200 (the one reflected once by the X-rays emitted from the X-ray source 200) is directly applied to the carry-in port 911A and the carry-out port 912A. To prevent leakage. With the above configuration, it is not necessary to provide predetermined X-ray shielding means such as a leakage prevention curtain that obstructs the article B at the carry-in entrance 911A and the carry-out exit 912A.

(Attaching method of X-ray inspection equipment to existing top chain type conveyor)
Next, a state where the X-ray inspection apparatus 100a is attached to the L-type top chain conveyor 900a will be described.

  First, the connection units 120a and 130a corresponding to the L-type top chain conveyor 900a are selected from a large number of connection units. Next, connecting unit 120a is connected from the side of common unit 110 (in the direction of arrow 120R in FIG. 7), and connecting unit 130a is connected from the side of common unit 110 (in the direction of arrow 130R in FIG. 7). Then, the X-ray inspection apparatus 100a is formed.

  Next, as shown in FIG. 8, the X-ray inspection apparatus 100a is connected to the L-type top chain type conveyor 900a from the side (in the arrow Y direction). Thereby, as shown in FIG. 6, the X-ray inspection apparatus 100a can be easily added to the L-type top chain type conveyor 900a.

(Effect in this embodiment)
As described above, in the X-ray inspection apparatus 100a according to the present embodiment, the common unit 110 is connected to the L-type top chain conveyor 900a via the coupling units 120a and 130a, and the arrows HL3 and HL4 are easily displayed. Inspection lines for HL5 and HL6 can be added. That is, the inspection line can be provided from the direction of the arrow Y without separating or modifying the L-type top chain type conveyor 900a.

  Moreover, the article | item B can be conveyed to any one said line by selecting at least one line of the line of the L-type top chain type conveyor 900a and the X-ray inspection apparatus 100 by the control part 500. FIG. As a result, X-ray inspection can be performed only on specific articles for various articles B that are easily transported on the L-type top chain conveyor 900a, and X-ray inspection is not performed on articles other than specific ones. be able to.

<Correspondence between each component of claims and each part of the embodiment>
In the above embodiment, the article B corresponds to the inspection object, the X-ray inspection apparatus 100a corresponds to the X-ray inspection apparatus, the existing top chain conveyor 900a corresponds to the existing line, and the connection units 120a and 130a Corresponding to the connecting unit, the common unit 110 corresponds to the common unit, the carry-in port 911A and the carry-out port 912A correspond to the carry-in / out port, the leakage prevention cover 913 and 914 correspond to the carry-in / out leakage prevention cover, and the linear top chain type The conveyor 611a and the straight top chain type conveyor 811a correspond to the connection transport unit, the directions of the arrows HL3, HL4, HL5, and HL6 correspond to the inspection line, the inspection table 711 corresponds to the main transport unit, and the direction of the arrow -Y Corresponds to the direction away from the loading / unloading port, the X-ray source 200 corresponds to the X-ray source, and the line sensor 400 corresponds to the X-ray source. Corresponds to capacitors, the examination table 711 corresponds to a rotary table, a pair of guides plates 614a, 814a correspond to the guides, the control unit 500 corresponds to the selection unit.

<First Modification>
In the above embodiment, the irradiation field of the X-ray source 200 is inclined from the horizontal plane. However, the present invention is not limited to this, and irradiation may be performed from the vertically upward direction to the downward direction. It may be irradiated.
<Second Modification>
In the above embodiment, the fixed casing 910 is provided. However, the present invention is not limited to this, and an opening / closing door that can be opened and closed and has a leakage preventing effect is provided in a part of the casing 910. May be. Moreover, you may provide the X-ray opaque window which can confirm an inside in a part of housing | casing 910. FIG.
<Third Modification>,
In the above embodiment, the article B can be conveyed by the top chain type conveyor 900 by providing the cooler 950 vertically above the top chain type conveyor 900 with a predetermined interval. However, the cooler 950 may be disposed at a position where the heat of the X-ray source 200 can be cooled and at another portion of the common unit 110.
<Fourth Modification>
Further, the leakage prevention cover 911 and the leakage prevention cover 912 are provided in the connection units 120 and 130, respectively, but the present invention is not limited to this, and the casing of the common unit 110 other than the peripheral members of the carry-in port 911A and the carry-out port 912A. 910 may be the same.

  Furthermore, although preferable embodiment of this invention is as above-mentioned, this invention is not restrict | limited only to them. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

B article 100 line inspection device 100a line inspection device 110 common unit 120 connection unit 120a connection unit 130 connection unit 130a connection unit 200 X-ray source 400 line sensor 500 control unit 600 reception unit 600a reception unit 611 reception table 611a linear top chain type conveyor 612 Rotating shaft 614 Guide guide plate 614a Guide guide plate 618a Star wheel 619a Support plate 700 Line inspection unit 711 Inspection table 712 Rotating shaft 714 Defective product box 715 Bar 800 Delivery unit 800a Delivery unit 811 Delivery table 811a Linear top chain type conveyor 812 Shaft 814 Guide guide plate 814a Guide guide plate 900 Top chain type conveyor 900a type top chain type conveyor 910 Case 9 11 Leakage Prevention Cover 911A Carry In 912 Leakage Prevention Cover 912A Carry Out 913 Leakage Prevention Cover 914 Leakage Prevention Cover 920 Display Unit 950 Cooler

Claims (4)

An X-ray inspection apparatus that performs X-ray inspection by irradiating an inspection object with X-rays,
A connection unit that can be attached to and detached from the communication part of the existing line;
A common unit disposed on the side of the connecting unit,
The connecting unit is
A carry-in / out leakage prevention cover having a carry-in / out port for carrying in / out the inspection object to / from the common unit;
A connecting and conveying unit that carries the inspection object into and out of the common unit,
The common unit is
A main transport unit that forms an inspection line in parallel with the existing line;
An X-ray source that irradiates X-rays in a direction away from the loading / unloading port with respect to the inspection object conveyed by the main conveyance unit;
An X-ray inspection apparatus comprising: an X-ray sensor that detects X-rays emitted from the X-ray source.   The X-ray inspection apparatus according to claim 1, wherein the main conveyance unit conveys the inspection object in an arc shape.   The X-ray inspection apparatus according to claim 1, wherein the main conveyance unit includes one or a plurality of rotary tables whose top surface is only a flat surface. The connection transport unit has a guide for guiding the inspection object between the existing line and the inspection line,
The said guide guide has a selection part which selects the said said one of the said existing line and the said inspection line from the said to-be-inspected object, The any one of Claim 1 to 3 characterized by the above-mentioned. X-ray inspection equipment.