KR20210111189A - A Plural Conveying Paths Type of an X-ray Investigating Apparatus - Google Patents

Abstract

The present invention relates to an X-ray inspection apparatus having a multi-path structure. The X-ray inspection apparatus having a multi-path structure comprises: a multi-path movement inducing module (20) for transporting articles having set inspection locations along at least two paths separated from each other; and a plurality of batch inspection modules (30) installed in each path and operated simultaneously or sequentially to obtain X-ray images of the articles. An object of the present invention is to provide an X-ray inspection apparatus having a multi-path structure capable of simultaneously or sequentially inspecting a part of at least one article while transporting the article along a plurality of paths.

Description

A Plural Conveying Paths Type of an X-ray Investigating Apparatus

The present invention relates to an X-ray inspection apparatus having a multi-path structure, and more particularly, to an X-ray inspection apparatus having a multi-path structure to improve inspection efficiency by inspecting an article in at least two paths.

The X-ray inspection method, which is a non-destructive inspection, has the advantage of being able to inspect the interior as well as the exterior without damaging the product. The X-ray inspection method has the advantage of being able to investigate internal defects of the inspection object, but has a disadvantage that inspection equipment is complicated and the inspection must be performed in a shielding structure. Therefore, it is necessary to make the inspection in a structure that can be made efficiently. Various techniques related to X-ray inspection are known in the art, and for example, Patent Registration No. 10-0978054 discloses a battery X-ray inspection apparatus in which an inspection object can be rotated at various angles. In addition, Patent Publication No. 10-2019-0013014 discloses an X-ray inspection apparatus capable of inspecting internal defects and junctions. The X-ray inspection device is installed during the process, so that the X-ray inspection needs to be inspected during the manufacturing process of the article. For example, it is advantageous to be installed in a part of the transport path through which the goods are transported in the production cycle and become part of the production facility. To this end, the X-ray inspection apparatus needs to have an appropriate structure for transporting articles and at the same time to have a structure that allows the examination to be performed quickly. In addition, if X-ray images of different areas of the article need to be acquired, it is necessary to efficiently create an inspection area for the inspection of the article. However, the prior art does not disclose such an inspection technique.

The present invention has the following objects to solve the problems of the prior art.

Patent Document 1: Patent Registration No. 10-0978054 (Jarvis Co., Ltd., 2010.08.25. Announcement) Battery X-ray inspection device Patent Document 2: Patent Publication No. 10-2019-0013014 (Jarvis Co., Ltd., published on Feb. 11, 2019) X-ray inspection device capable of inspecting internal defects and junctions

It is an object of the present invention to provide an X-ray inspection apparatus having a multi-path structure capable of simultaneously or sequentially inspecting at least one part of an article while transporting an article along a plurality of paths.

According to a suitable embodiment of the present invention, an X-ray inspection apparatus having a multi-path structure includes: a multi-path movement inducing module for transferring an article having an inspection position set along at least two paths separated from each other; and a plurality of batch inspection modules installed in each path and operated simultaneously or sequentially to obtain an X-ray image of an article.

According to another suitable embodiment of the present invention, the multi-path movement module comprises two inspection paths extending parallel to each other.

According to another suitable embodiment of the present invention, the multi-batch inspection module includes a pair of x-ray tubes disposed in both directions of each path.

According to another suitable embodiment of the present invention, the pair of x-ray tubes have different irradiation angles with respect to the article.

According to another suitable embodiment of the present invention, the article is rotated at the inspection position formed in the path, whereby X-ray images for different directions are acquired.

According to another suitable embodiment of the present invention, articles are transported by the inspection shuttle, and a waiting area is formed for distributing the inspection shuttle to different routes.

According to another suitable embodiment of the present invention, it further comprises detection means for detecting the alignment direction of the article moved to the inspection position.

According to another suitable embodiment of the present invention, a buffer area for waiting for transport of an article is formed at a position opposite to each other or a symmetrical position of the at least two paths.

According to another suitable embodiment of the present invention, the article is a battery.

The X-ray inspection apparatus having a multi-path structure according to the present invention transfers an article along separate transfer paths, and acquires an X-ray image in each path to improve inspection efficiency. In the inspection apparatus according to the present invention, an inspection object is rotated at an inspection site, and X-rays are emitted in oblique directions from different positions to obtain an inspection image of an edge region of an article, thereby enabling accurate inspection of the article. The inspection apparatus according to the present invention is coupled to a path through which an article is transported in a manufacturing process so that the productivity of the article is improved by inspecting the article in the manufacturing process. The inspection apparatus according to the present invention enables continuous inspection of articles such as automobile batteries.

1 illustrates an embodiment of an inspection structure applied to an X-ray inspection apparatus having a multi-path structure according to the present invention.
2 shows an embodiment of a transport path applied to the inspection apparatus according to the present invention.
3 shows an embodiment of an inspection apparatus according to the present invention.
Figure 4 shows an embodiment of the arrangement structure of the X-ray inspection module applied to the inspection apparatus according to the present invention.
5 illustrates an embodiment of a process in which an inspection is performed in the inspection apparatus according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments are for a clear understanding of the present invention, and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so they will not be repeatedly described unless necessary for the understanding of the invention, and well-known components will be briefly described or omitted, but the present invention It should not be construed as being excluded from the embodiment of

1 illustrates an embodiment of an inspection structure applied to an X-ray inspection apparatus having a multi-path structure according to the present invention.

Referring to Figure 1, the x-ray inspection apparatus of the multi-path structure is a multi-path movement inducing module 20 for transferring an article having an inspection position set along at least two paths separated from each other; and a plurality of batch inspection modules 30 installed in each path and operated simultaneously or sequentially to obtain X-ray images of the article.

The inspection device may be formed as an independent inspection device but may preferably be arranged as part of the production facility. Specifically, an inspection device may be installed in a transport path installed for manufacturing an article, and the inspection may be performed by being put into an X-ray device at a point in the transport path of the article. When the inspection device completes the inspection of the article, the article may be discharged to another point of the transport path and transported along the transport path for a subsequent manufacturing process. An article such as, for example, a battery for an electric vehicle may be transported by a shuttle along the transport path to the entrance of the test room in which the multiple batch test module 30 is disposed. The examination room may have a shielding structure, for example, a shielding door may be installed at the entrance of the examination room. The article may be loaded into the shuttle and put into the examination room, and may be transported to the examination location while being loaded on the shuttle. An article to be inspected may be, for example, a polymer battery or a polymer battery for a vehicle, and an inspection position of the article may be set by the inspection position setting module 10 . The inspection position of the article refers to a reference position at which an image is acquired by an inspection module such as an X-ray tube and a detector. The examination position setting module 10 may determine a reference position at which an X-ray image should be obtained and directions of the X-ray tube and the detector with respect to the reference position according to the examination object. And the alignment direction of the article may be determined according to the determined reference position. When the alignment direction of the article is determined, the article may be aligned according to the predetermined direction and transported to the inspection position. The article may be loaded on a transport means such as a shuttle having an accommodating space therein, and the loading direction of the article may be determined in the shuttle. The loading direction of the article in the shuttle may be confirmed by a vision unit such as a camera, for example, and the position and direction of the shuttle may be confirmed at the inspection position. An article such as a cell of a battery may have various sizes, and the article may be directly transferred and transferred to the inspection apparatus, or may be accommodated in a shuttle or tray and transferred to the inspection apparatus. If the article is being transported directly, the article may be aligned by the inspection device, for example along the X-Y axis relative to one side of the article. On the other hand, when the article is accommodated in a tray or shuttle and transferred to the inspection device, it is difficult to directly handle the article in the inspection device. In addition, the article may be transferred in a state deviating from a predetermined direction inside the shuttle, and for example, in the case of a battery cell, the article may be transferred to the inspection device in a distorted form. In this case the orientation of the article with respect to the tray or cell may be detected by means of a detection means, which may be a vision unit, for example a camera. A means of transporting an article such as a shuttle may have a structure movable along X, Y, Z and R axes, and the position may be corrected while the shuttle is moved to an inspection position. As such, the inspection position setting module 10 may include a positioning means such as a vision unit for confirming the alignment direction of the articles loaded on the shuttle or the direction of the shuttle at the inspection position. In addition, the inspection position setting module 10 may include an alignment means for aligning each item in the shuttle, and may optionally have a function of storing the alignment position of the items transferred to the inspection position. As such, when the acquisition direction of the X-ray image of the article and the alignment direction of the article are confirmed by the inspection position setting module 10 , each article may be moved to the inspection position by the multi-path movement induction module 20 . The multi-path movement induction module 20 may have a function of guiding a plurality of articles to different inspection paths to move each article to an inspection position of a different position. The multi-path movement guidance module 20 includes at least two inspection paths for moving each article to at least two inspection positions; a waiting area in which each article transferred to at least two inspection paths is queued; and a transport means such as a shuttle on which each article is loaded and moved to an inspection location. A plurality of inspection paths may be arranged side by side, for example, two inspection paths may be arranged side by side. An inspection position may be formed in each inspection path, and an inspection module including an X-ray tube and a detector may be disposed at each inspection position to obtain an X-ray image. Each article may be loaded onto a vehicle, such as a shuttle, and moved to an inspection location along a respective inspection path. The transport means may be fixedly detachably fixed by, for example, a gripper or similar means and moved to an inspection position, and may be rotated in various directions from the inspection position. At least one inspection module may be installed at the inspection position, and the direction of the article with respect to the X-ray tube may be determined by rotation of the transport means. When the direction of the X-ray tube for the article is determined in this way, an X-ray image for the article may be obtained. The multiple batch inspection module 30 may include an X-ray tube and a detector disposed at an inspection position formed in each inspection path. In addition, the multiple batch inspection module 30 may include at least one inspection module disposed at each inspection position and a position adjusting means for moving each inspection module. The X-ray tube may be moved along the XY-plane or Z-axis direction by the position adjusting means, and the position of the detector may be determined according to the position of the X-ray tube. An X-ray image may be acquired while the article is loaded on the shuttle, and the shuttle may have a rotatable structure. A plurality of X-ray tubes and a plurality of detectors are disposed at one inspection position to obtain X-ray images in different directions. When X-ray images for at least one direction are acquired at different inspection positions by the multiple batch inspection module 30 , it may be confirmed whether the article has a defect. The article may be loaded on the transport means and moved to a discharge location, and a discharge path may be determined according to the inspection result of the article. The discharge path may have various structures, for example, a normal product may be guided to a transport path for processing of an article, and an article determined to be abnormal may be guided to a re-inspection path or a separation path. It can be formed in a convenient manner and is not limited to the presented embodiment.

Figure 2 shows an embodiment of a transport path applied to the inspection apparatus according to the present invention.

Referring to FIG. 2 , the multi-path movement module 20 includes two inspection paths 22a and 22b extending in parallel to each other. In addition, the multiple batch inspection module 30 includes a pair of X-ray tubes 31a, 32a, 33a, 34a disposed in both directions of each path. The X-ray image may be acquired from the inside of the examination room R having a closed structure, and an article may be put into the inside from the outside of the examination room R (IN). The articles put into the examination room R may be transferred to the examination paths 22a and 22b arranged in parallel with each other along the distribution path 21 . A plurality of inspection paths 22a, 22b may be installed, and articles may be moved along the distribution path 22 and guided to the respective inspection paths 22a, 22b. The loading modules L1 and L2 may be moved along the transport paths 24a and 24b to move the article along the inspection paths 22a and 22b. The inspection paths 22a and 22b may be formed to be parallel to the input direction IN, and the distribution path 21 may extend in a direction perpendicular to the inspection paths 22a and 22b. In addition, the transmission paths 24a and 24b may extend in parallel with the inspection paths 22a and 22b. When an article for inspection is loaded on a transport means such as a shuttle and moved to a predetermined position along the distribution path 21, the article is unloaded again by the loading modules L1 and L2, and the inspection path 22a, It may be loaded on the inspection shuttles (25a, 25b) located in 22b). When the alignment direction of the articles loaded in the inspection shuttles 25a and 25b is confirmed, the inspection shuttles 25a and 25b may be moved to the inspection positions P1 and P2 formed in the inspection paths 22a and 22b, respectively. When the X-ray image is acquired by the X-ray tube and the detector at each of the inspection positions P1 and P2, the article is moved along the inspection paths 22a and 22b again to reach the end of each inspection path 22a, 22b. can The first and second inspection paths 22a and 22b may be arranged to have different positional relationships with respect to the distribution path 21 or the discharge induction path 23 while having the same or similar extension lengths. For example, the first inspection path 22a may be located adjacent to the distribution path 21 , and the second inspection path 22b may be located adjacent to the discharge induction path 23 . When the inspected article is moved to the end of each inspection path (22a, 22b), the article is separated from the inspection shuttle (25a, 25b) by the loading module (L1, L2) and located in the discharge guide path (23) It may be loaded onto a vehicle such as a shuttle. Thereafter, the shuttle of the discharge induction path 23 may be discharged (OUT) along a transport path determined by the path selection unit 26 located outside the examination room R, or collected separately for re-inspection or separation. Or more inspection paths 22a and 22b are arranged, and an X-ray image may be acquired at each inspection path 22a, 22b At least one X-ray image may be acquired at each inspection position P1, P2 In order to obtain an X-ray image of the article, the article may be aligned at the inspection positions P1 and P2, and X-ray images for different directions can be checked from the acquired X-ray image The article may be rotated or moved up and down for acquisition.In order to improve inspection efficiency when X-ray images are acquired at different inspection positions P1 and P2 formed in different inspection paths 22a, 22b, an input path, Accordingly, according to an embodiment of the present invention, a plurality of inspection paths 22a and 22b are arranged in parallel with each other and the distribution path 21 and the discharge path are formed in a vertical direction. The guide path 23 is formed. In addition, as the delivery of the goods to different paths is made by the gripper or the loading modules L1 and L2 having a similar structure, the goods can be loaded on the shuttle and moved in each path. Hereinafter, an inspection device having such an article transport path will be described.

3 shows an embodiment of an inspection apparatus according to the present invention.

Referring to FIG. 3 , the article is rotated at the inspection position formed on the path, whereby X-ray images for different directions are obtained. Also, the article is transferred by the inspection shuttles 25a and 25b, and a waiting area WA for distributing the inspection shuttles 25a and 25b to different paths is formed. The waiting area may be formed to connect the outside and the inside of the examination room R, and the input shuttle 35a may be moved along the waiting area WA. An article B, such as a battery, may be loaded in the input shuttle 35a, and a shielding door may be installed in the waiting area WA. When the input shuttle 35a on which the article B is loaded is moved along a transport means such as a conveyor and is located in the waiting area WA outside the test room R, the shield door of the test room R is opened, and the input shuttle (35a) may be moved to the waiting area (WA) formed in the interior of the examination room (R). The distribution path 21 may extend in a direction perpendicular to the input path based on the waiting area WA inside the examination room R. In the waiting area WA, the plurality of input shuttles 35a may move in different directions along the distribution path 21 . The dosing shuttles 35a, 35b are moved through a conveying means such as a conveyor, or by a loading unit such as a gripper movable along the planar and vertical directions, along the dispensing path 21 , the first or second inspection paths 22a, 22b ) can be moved in the direction of Alternatively, the article B may be unloaded from the input shuttle 35a by the loading unit, and the loading unit may be moved along the dispensing path 21 in the direction of the first or second inspection path 22a, 22b. have. And the article B can be loaded on the inspection shuttle 25a positioned at each end of the dispensing path 21 or the article B on the standby shuttle positioned in the buffer area 36 . According to a suitable embodiment of the present invention, the buffer areas 36 and 39 for waiting for the transfer of the article may be formed at opposite or symmetrical positions of the two inspection paths 22a and 22b. Specifically, the completion buffer region 39 may be formed at an extension portion of the end of the first inspection path 22a, and the buffer region 36 may be formed at a portion extending from the start of the second inspection path 22b. have. A standby shuttle may be arranged in the buffer areas 36 , 39 , for example a standby shuttle may be arranged in each buffer area 36 , 39 . By the formation of the buffer regions 36 and 39 having such a structure and the arrangement of the atmospheric shuttle, for example, an X-ray image can be efficiently acquired in the structure of the inspection module having a resolution level of 10 to 25 ppm (part per million). Avoid the occurrence of collision zones. For example, two positions for the waiting shuttle may be formed in each buffer area 36 , 39 . When the X-ray image of the article loaded in the second inspection shuttle 25a is acquired, the article loaded in the first inspection shuttle 25a may be loaded into the waiting shuttle. When goods are loaded into one waiting shuttle for completion, the waiting shuttle for completion is moved to another position, and then the goods loaded on the waiting shuttle for completion are moved to the discharge shuttle 35b, and then the waiting shuttle for completion can be moved to the original position again. . The loading of articles relative to the waiting shuttle or movement of the waiting shuttle in the buffer areas 36 , 39 can be accomplished in a variety of ways and is not limited to the embodiments presented.

As shown in FIG. 3 , the first inspection path 22a may be connected to the distribution path 21 , and the second inspection path 22b may be located separately from the distribution path 21 . When a plurality of inspection paths 22a and 22b are formed in this way, each inspection path 22a, 22b may be located at a different separation distance from the distribution path 21, whereby each inspection path 22a, 22b ), the article (B) can be loaded sequentially. Accordingly, an X-ray image may be acquired by the X-ray tubes 31a to 34a and the detectors 31b to 34b which are transferred to each inspection position with a time difference and disposed at each inspection position. The article B loaded into the input shuttle 35a and put into the test room R may be moved to the test shuttle 22a by the loading unit or may be moved to the standby shuttle located in the buffer area 36 . Thereafter, the first inspection shuttle 25a located in the first inspection path 22a may be moved to the first inspection position, and the article B located in the standby shuttle of the buffer area 36 moves to the second guidance path ( 24b) may be separated from the standby shuttle of the buffer area 36 by the loading unit moving along 24b) and moved to the second inspection shuttle 25b. The test shuttles 25a, 25b may be moved staggeredly to the first and second test positions, for example by a loading module that is moved along the first and second guide paths 24a, 24b. The article B may be inspected while being loaded on the inspection shuttles 25a and 25b, and the article B is loaded onto the inspection shuttles 24a and 24b of the article B while being loaded on the inspection shuttles 25a and 25b. The alignment direction can be confirmed. For example, the alignment direction of each item B may be checked and stored by the vision unit, and the control module may adjust the direction of the inspection module at the inspection position based on the alignment direction of each item. First and second inspection modules may be disposed in the first and second inspection paths 22a and 22b, respectively, and each inspection module includes the first and second X-ray tubes 31a, 32a, 33a, 34a and the first and second inspection modules. It may include detectors 31b, 32b, 33b, and 34b. For example, a pair of X-ray tubes (31a, 32a) may be disposed on both sides of the first examination path (22a) at the first examination position, and a pair of detectors (32a, 32b) is a pair of X-ray tubes (31a, 31b) may be disposed at a position facing. The inspection shuttle 25a may be rotated to a predetermined angle in the inspection position, and may be rotated to two different measurement angles as shown in FIG. 3 . In addition, an X-ray image of the article B may be obtained at each measurement angle, for example, an X-ray image of the article B inclined in different directions may be obtained. It is possible to accurately inspect the article (B) such as a polymer battery having a laminated structure by such oblique images in different directions. Each of the X-ray tubes 31a to 34a and each of the detectors 31b to 34b may have a structure movable with respect to the XY plane or the Z axis. When the inspection is completed by the inspection module in the first and second inspection paths 22a and 22b , the article B loaded in the first inspection shuttle 25a is transferred to the completion waiting shuttle disposed in the completion buff area 39 . can be moved to Also, the second inspection shuttle 25b may be moved to the end of the second inspection path 22b. The goods B loaded on the completion waiting shuttle of the completion buffer area 39 and the second inspection shuttle 25b are separated by the loading unit moving along the discharge path 23 and are sequentially placed in the discharge area EA It can be loaded on the discharge shuttle (35b). The discharge area EA may extend from the inside of the examination room R to the outside, and the discharge shuttle 35b may be moved along the discharge area EA to be discharged to the outside of the examination room R. When the discharge shuttle 35b is moved to the outside of the inspection room R, the article B is moved to the transfer shuttle 37 by the path selection unit 26 or the article B is moved to the error shuttle 38 . can be The article B moved to the error shuttle 38 may be re-inspected, or may be separated and processed as defective articles. As such, the X-ray inspection apparatus according to the present invention includes a shuttle that reciprocates along a plurality of transfer paths separated from each other, and transfers the article (B) to the loading unit between the different shuttles. And at least two inspection paths (22a, 22b) are formed in parallel with each other, and at least one pair of X-ray tubes (31a, 32a, 33a, 34a) in each inspection path (22a, 22b) inspection path (22a, 22b) ) can be placed opposite each other. In addition, the inspection shuttles 25a and 25b may be rotated at the inspection position, and accordingly, the article B may be rotated to obtain different oblique images. Figure 4 shows an embodiment of the arrangement structure of the X-ray inspection module applied to the inspection apparatus according to the present invention.

Referring to FIG. 4 , an article B, such as a polymer battery, loaded on an inspection shuttle 25a may be moved to an inspection position along an inspection path 22a. The inspection shuttle 25a is moved along the inspection path 22a in a state of being coupled to a loading unit such as a gripper moved along the guidance path 24a, or moved to the inspection position by a moving means installed in the inspection path 22a. can be The first and second X-ray tubes 31a and 32a may be disposed at positions facing each other of the examination path 22a, and the first and second X-ray tubes 31a at different positions with respect to the extension direction of the examination path 22a , 32a) may be disposed. And detectors 31b and 32b may be disposed at positions facing each of the X-ray tubes 31a and 32a. The article B may be in the shape of a box having a rectangular cross section, and the inspection shuttle 25a may have a suitable shape in which the article B can be loaded and fixed. The inspection shuttle 25a may be located at an intermediate point along the horizontal direction of the two X-ray tubes 31a and 32a, and may be rotated in the first direction with respect to the reference direction RD at the intermediate point. In this state, two oblique images based on different corners may be obtained by the first and second X-ray tubes 31a and 31b and the first and second detectors 31b and 32b. Thereafter, the inspection shuttle 25a may be rotated in a second direction opposite to the first direction with respect to the reference direction RD, and again the first and second X-ray tubes 31a and 32a and the first and second detectors ( 31b and 32b), two oblique images may be obtained based on two different corners. In this way, oblique images in different directions with respect to the four corners can be obtained, and thus all parts of the article B such as a polymer battery can be inspected. Optionally, an image in a state aligned in the reference direction RD may be acquired, but whether to acquire an X-ray image may be determined depending on the structure of the article B and is not necessarily required. When the inspection is completed in this way, the inspection shuttle 25a may be moved to the end of the inspection path 22a. The inspection shuttle 25a may be rotated at various angles. The X-ray tubes 31a and 32a are moved up and down to obtain oblique images according to different heights. The oblique image may be acquired in various ways and is not limited to the presented embodiment.

5 illustrates an embodiment of a process in which an inspection is performed in the inspection apparatus according to the present invention.

Referring to FIG. 5 , the inspection method by the X-ray inspection apparatus includes the steps of loading a battery into a shuttle and putting the battery into the interior of the inspection room (P51); A step of calculating a transport time and an inspection time in a plurality of inspection paths to calculate a transport time for each inspection path (P52); a step of transferring and distributing the battery to each inspection path based on the transfer time (P53); Step (P54) of determining the rotation angle of the battery at the inspection position formed in each inspection path; obtaining an X-ray image of at least one examination site by at least one examination module at at least one rotation angle (P55); and calculating the discharging time of each battery for which the inspection is completed, and transferring and discharging the battery based on the discharging time (P56).

A plurality of inspection paths may be formed and, as described above, an input path; induction pathway; An inspection path or an evacuation path may be formed. A shuttle capable of reciprocating movement may be disposed on each path, and a battery may be moved by a loading unit between shuttles located on different paths. When the battery loaded in the shuttle is put into the test room (P51), the transfer time of the battery along different paths and the test time can be calculated at the test location, and the transfer time can be calculated without stopping the test sequentially It can be (P52). Inspection may be performed at at least two double screw positions, and the battery may be distributed to each inspection path so that the inspection is continuously performed at each inspection position (P53). At each inspection position, the battery is rotated at a predetermined angle (P54) to obtain X-ray images for all corners (P56). In addition, in the process of testing other batteries, the tested batteries may be discharged to the outside of the testing room (P56). The X-ray inspection apparatus may be operated in various ways and is not limited to the presented embodiment.

The X-ray inspection apparatus having a multi-path structure according to the present invention transfers an article along separate transfer paths, and acquires an X-ray image in each path to improve inspection efficiency. In the inspection apparatus according to the present invention, an inspection object is rotated at an inspection site, and X-rays are emitted in oblique directions from different positions to obtain an inspection image of an edge region of an article, thereby enabling accurate inspection of the article. The inspection apparatus according to the present invention is coupled to a path through which an article is transported in a manufacturing process so that the productivity of the article is improved by inspecting the article in the manufacturing process. The inspection apparatus according to the present invention enables continuous inspection of articles such as automobile batteries.

Although the present invention has been described in detail with reference to the presented embodiments, those skilled in the art can make various modifications and modified inventions without departing from the technical spirit of the present invention with reference to the presented embodiments. . The present invention is not limited by such variations and modifications, but only by the claims appended hereto.

10: inspection position setting module 20: movement guidance module
30: inspection module 21, 22: distribution path
22a, 22b: test route 23: induction route
24a, 24b: transmission path 25a, 25b: inspection shuttle
31a 32a, 33a, 34a: X-ray tube 36, 39: buffer area
35: input shuttle

Claims (2)

a multi-path movement inducing module 20 for transporting an article whose inspection location is set along at least two paths separated from each other; and
and a plurality of batch inspection modules 30 installed in each path and operated simultaneously or sequentially to obtain an X-ray image of an article,
The multi-path movement guidance module 20 includes two inspection paths 22a and 22b extending parallel to each other,
The multiple batch inspection module 30 includes a pair of X-ray tubes 31a, 32a, 33a, 34a disposed in both directions of each path,
A pair of X-ray tubes (31a, 32a, 33a, 34a) have different irradiation angles with respect to the article, and the article is rotated at the inspection position formed in the path, whereby X-ray images for different directions are obtained,
The article is transported by the inspection shuttles (25a, 25b), and a waiting area for distributing the inspection shuttles (25a, 25b) to different routes is formed,
detection means for detecting the alignment direction with respect to the inspection shuttle (25a, 25b) of the article being moved to the inspection position;
An X-ray inspection apparatus having a multi-path structure, characterized in that buffer areas (36, 39) for waiting for the transfer of articles are formed at positions opposite to each other or symmetrical in at least two paths. The apparatus of claim 1 , wherein the article is a battery.

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