JP2002214357A - X-ray image inspection system and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an X-ray image inspection system and method capable of managing the quality of products according to numbers by which quality information about contamination with foreign matter and the number of contents is imparted to the products. SOLUTION: A metal detector 41 is used to check whether or not the products contain iron as foreign matter. A weighing instrument 42 measures the weight per one product. X-ray images of the products are taken and stored in an X-ray foreign matter inspection apparatus 10. A laser marker 20 marks the package of the product using a laser with a mark including data about the date of inspection or fabrication of the product and serial number. Files of the X-ray images and the marks are stored in hard disc 52. A report of defectives is created from the files stored in the disc 52. After completion of the inspection, the data stored in the disc 52 are stored into a DVD-RAM positioned in a DVD-RAM drive 53.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and method for measuring the contents of a product in which food is packaged using a metal detector and an X-ray inspection apparatus.
The present invention relates to an X-ray image inspection system and an X-ray image inspection method for marking a serial number or the like on an object to be measured using a laser beam and storing the number and an X-ray image as data.

[0002]

2. Description of the Related Art Conventionally, regarding quality control of products, inspection of non-defective products and defective products is performed during a product manufacturing process, and when defective products are found, only defective products are removed. Is often asked. In this inspection method, defective products are removed, so that the possibility of the defective products being sold to the market is extremely reduced.

[0003]

However, since there is little information on defective products, it is not easy to come up with measures to improve why defective products have been manufactured and what kind of defective products have occurred. For example, there is a problem that it is not easy to inspect in which manufacturing process a defective product has occurred, whether there is a relationship between the defective product and the raw material, and the like.

[0004] It is an object of the present invention to provide an X-ray image inspection system capable of controlling the quality of all products by using information in which quality information such as contamination of foreign substances and the number of contents is attached to each of the products. A system and an X-ray image inspection method are provided.

[0005]

According to the present invention, X-ray inspection means for irradiating an inspection object with X-rays and acquiring an X-ray image of the inspection object, and Use,
Image inspection means for inspecting the inspection object and obtaining an inspection result, and laser recording means for emitting a laser beam to the inspection object and recording predetermined information on the inspection object. Provided by an X-ray image inspection system.

Further, according to the present invention, the step of irradiating the inspection object with X-rays to acquire an X-ray image of the inspection object, and using the X-ray image to convert the inspection object to An X-ray image inspection, comprising: a step of inspecting and obtaining an inspection result; and a step of emitting a laser beam to the inspection object and recording predetermined information on the inspection object. Provided by the method.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an X-ray image inspection system and an X-ray image inspection method according to the present invention will be described with reference to the drawings. A specific example of an X-ray image inspection system and an X-ray image inspection method according to an embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is an overall functional block diagram of an X-ray image inspection system according to an embodiment of the present invention. The packaged product is a belt conveyor (Fig. 5 (A) and Fig. 5).
(See (B)). The operation speed of the belt conveyor is adjusted by a control panel that controls the belt conveyor. The products packaged in this way are placed on a belt conveyor and sent to an apparatus that executes a predetermined process one by one.

First, the product is sent to a metal detector 41.
Here, it is checked whether there is a foreign substance of iron in the product. Next, the products are put on the measuring device 42 one by one, and the weight per one product is measured. Of course, a product having a foreign substance of iron in the product and a product having a small weight per product are defective. These defective products are separated from non-defective products in a later process.

[0010] The products are carried into the X-ray foreign substance inspection apparatus 10 by the belt conveyor. In this device 10, an X-ray image of a product is captured and stored. With this image, the inside of the product can be checked. Further, the state of the product, such as a shortage of the number of products in the package or a lack of the shape of the product, can be checked by observing the image. By performing image processing on the stored X-ray image of the product, the state of the product described above is checked. These pieces of image information are executed for all products. Therefore, the quality information of all products can be confirmed by the image of the measured object.

The laser marker 20 is used for the X-ray foreign matter inspection apparatus 1.
0 is provided after. With the laser marker 20, a mark including the date when all the products were inspected or the date when the products were manufactured, and a serial number are marked on the packaging bag of the product by the laser beam. The date and serial number are stored in the image-related device 30 in association with the product image. This allows the image, date and serial number to be displayed simultaneously for each product. There are at least several ways in which marks are recorded on packaging bags. First, the number may be printed directly on the packaging bag. If the number printed on the packaging bag is visually observed, the number is decoded. This number can also be automatically decoded by the character recognition device.

In some cases, a photosensitive surface made of a specific material responsive to a laser beam is attached to a packaging bag. The photosensitive surface is irradiated with a laser beam containing data.
For all products, this data includes the date that the product was tested or the date that the product was manufactured, and the serial number. The data is preferably in digital form, but may be in analog form. This information is decrypted using a unique decoder.

Further, a holographic substrate may be stuck on a packaging bag. By burning a microscopic spot on the substrate by the laser beam, the above information is written on the substrate. When information is read, the substrate is irradiated with a laser beam, and the laser beam reflected on the spot has low energy, so that the information of the spot can be read.

The file of the X-ray image and the data on the mark stored in the image-related apparatus 30 is sequentially stored on the hard disk 52. At this time, a file in which the date, the total number of files, the serial number corresponding to the finally saved product, and the serial number at which the defect was detected is created as a report file. Then, this file is updated sequentially. Then, the computer having the hard disk 52 is an in-house L
If connected to an AN (Local Area Network) or the like, quality information of all products can be shared on a computer network or the like.

The image-related device 30 includes a hard disk 5
2. DVD-RAM (Digital Versatile Disc-Random)
Access Memory) is connected to a computer having a drive 53 and the like. In addition, CPU (Central Proces
sing unit), the image-related device 30, the image display device 45,
It is connected to the power cutoff unit 43, the hard disk 52, and the printer 54 to control them.

In addition, a defect report is created from the file stored in the hard disk 52 by using software. Then, the defective report is output from the printer 54. This reject report shows the serial number of the rejected product, the date the reject was detected,
The time and the contents of the defect are described.

Further, the sorting device 44 separates the products into non-defective products and defective products, and moves the products to different places. When the inspection is completed, the data stored in the hard disk 52 is stored in the DVD-RAM arranged in the DVD-RAM drive 53. Further, a power shutoff unit 43 for shutting off the power of all the devices described above when the product inspection is completed is provided. DVD-RAM
The power shut-off unit 43 is set to operate immediately after the inspection result data for all the products is stored.

Further, an image display device 45 is provided, and this device 45 is connected via the X-ray foreign substance inspection device 10, the image-related device 30, and the CPU 51.
As a result, only the X-ray image of the product can be monitored, and the X-ray image, date, serial number, and inspection result can be referred to on the screen. Note that the X-ray image from the X-ray foreign matter inspection device 10 can be displayed on the image display device 45 as a substantially real-time image.

Further, a printer 54 for printing a predetermined file is provided. The printer 54 is linked with the image-related device 30 and prints a file (a file in which the date, serial number, inspection result, and X-ray image are associated) stored in the storage unit 33 (see FIG. 4). can do.

The metal detector 41 and the weighing device 42 are arranged on the way of the product being transported to the X-ray foreign substance inspection apparatus 10. After passing through the metal detector 41, the product is placed on the scale 42. The metal detector 41 checks whether metal is contained in the product. During the manufacturing process of manufacturing a product, there may be a small possibility that unnecessary metal materials such as metal pieces from a manufacturing machine made of metal may be mixed into the product. The metal detector 41 is provided in order to eliminate products containing unnecessary metal objects such as metal pieces. If a metal is detected in a product, it is determined to be defective. The scale 42 measures the weight of the product. A predetermined number of products are placed on the weighing machine 42, and the weight of the products is measured. If the number of products to be placed on the weighing device 42 is determined, the weight value indicated by the weighing device 42 is determined from the number of products when the number, capacity, and density of the packaged foods deviate from the allowable error ranges. Deviation from a value in a certain error range. As described above, when the indicated value deviates from a certain range, the measuring device 42 determines that the product is defective. In order to determine whether each product is a good product or a defective product, it is desirable that the products be weighed one by one.

Further, each part of the X-ray image inspection system will be described in detail with reference to the drawings. FIG. 2 is a functional block diagram of the X-ray foreign substance inspection device 10 shown in FIG. One end of the belt conveyor (see FIG. 5A) is provided up to the entrance of the X-ray foreign substance inspection device 10. The inspection object is transported to the X-ray foreign substance inspection device 10 from this entrance. The other end of the belt conveyor is connected to a device in a final manufacturing process of a product manufacturing line. The product completed in the final manufacturing process is placed on a belt conveyor and subjected to product inspection by the system of the present invention. In a belt conveyor, a conveying surface on which a product is placed is usually made of an elastic material having a large friction coefficient such as rubber. Due to the material of the conveying surface, the product is not shifted and falls off the belt conveyor, and the position is not shifted on the belt conveyor.
Transported to zero.

The X-ray foreign matter inspection apparatus 10 includes an X-ray irradiator 14 for irradiating X-rays to a product to be inspected. In the apparatus 10, a transport conveyor 12 connected to a belt conveyor is provided. By using the transport conveyor 12, the inspection object is carried below the X-ray irradiation unit 14. When the inspection object is positioned vertically below the X-ray irradiation unit 14, the X-ray irradiation unit 14 irradiates the inspection object with X-rays. This is due to the operation of the sensor 13. That is, when the inspection object is positioned vertically below the X-ray irradiation unit 14, the sensor 13 senses the inspection object. A sensing signal from the sensor 13 is supplied to an X-ray irradiator 14, and X-rays are radiated from the device to the object to be inspected. The irradiated X-ray is received by the X-ray receiving unit 15. This X
The X-ray receiving unit 15 is installed at a position symmetric to the X-ray irradiation unit 14 with respect to the transport conveyor 12. Thus, unlike the case where the X-ray irradiation unit 14 is provided above the transport conveyor 12, the X-ray irradiation unit 14 may be provided below the transport conveyor 12. What is important is that the X-rays are sufficiently irradiated to the products on the transport conveyor 12 so that the products can be inspected, and the X-rays passing through the products are incident on the X-ray receiving unit 15. If the product is inspected by X-ray in this way, X
X-ray irradiator 14, X-ray receiver 15, and conveyor 1
The arrangement of 2 may be any arrangement.

The X-ray image received by the X-ray light receiving section 15 is supplied to an image signal converting section 16. In the image signal conversion unit 16, the received X-ray image is converted into a compressed image file. This makes the X-ray image easier to handle on a computer system. The compressed image is, for example, JPEG (Joint Photographic Experts Groove).
up) compressed using the compression format. Then, the compressed X-ray image is stored in the image storage unit 17. The image storage unit 17 is a storage device such as a hard disk 52 and a memory. This image storage unit 17
The X-ray image stored in is supplied to the image inspection unit 18,
Here, the image is analyzed. The image inspection unit 18 performs image processing on the X-ray image of the product stored in the image storage unit 17 to check the state of the product described above.

FIG. 3 shows the laser marker 20 shown in FIG.
It is a functional block diagram inside. A product to be inspected is discharged from the X-ray foreign substance inspection device 10 by the transport conveyor 12 and placed on the three-line printing conveyor 22. The printing conveyor 22 is arranged so that there is a gap between the belts. When the product is placed on the printing conveyor 22, the product is placed across two belts. That is, the product is set such that the center of the product is located substantially in the gap. The laser emitting portion 23 of the laser marker 20 is provided vertically below the gap of the printing conveyor 22 where the center portion of the product is located. The product is sent to the laser emitting unit 2 by the printing conveyor 22.
3, the laser beam is emitted from the laser emitting unit 23 to the lower surface of the product. On the underside of the product,
The product is marked by the laser beam so that the date and serial number at which it was inspected (or manufactured) is included as information. This date is entered from the clock installed in the system. Further, the user may input the date using a keyboard, a mouse, or the like. The serial number is set to 1 by the counter unit 25.
By being counted one by one, it is continuously applied to the product. Print controller 24 in laser marker 20
Enter the initial value of the serial number in. The print controller 24 controls the laser emitting unit 23 to control a laser beam in accordance with the serial number of each product. The laser marker 20 further includes a count setting unit 26. In the count setting unit 26, the number marked immediately before the system is reset is supplied to a number recording unit 34 in the image-related device 30 described later. And
The number is recorded in the number recording section 34. When the system is reset, the number is stored in the number recording unit 34 described above.
, And the number is supplied to the counter unit 25 so that the number recording unit 34 can start counting from the continuation number of the serial number before the system is reset.

The operation speed of the printing conveyor 22 is adjusted by a control panel 21 for controlling the printing conveyor 22 in the same manner as in the case of the transport conveyor 12. This printing conveyor 22
Control panel 21 connected to the transport conveyor 12
May be controlled collectively by a control integration unit or the like for collectively controlling the conveyor. Thereby, it may be possible to more easily achieve control of the operation speed of the transport conveyor 12 and the printing conveyor 22, the timing of changing the operation speed, and the like.

Further, on the printing conveyor 22, a mark including information such as a date and a serial number is provided on the surface of the packaging bag of the product by the laser emitting unit 23 in the laser marker 20. At the time of printing with a laser beam, the laser emission unit 23 is controlled by the print controller 24, and the above mark is printed at a desired position on the packaging bag. At the same time that the mark is given, information such as date and serial number is stored in the storage unit 3
3 Further, the X-ray image stored in the image storage unit 17 in the X-ray foreign substance inspection device 10 is associated with a mark corresponding to the image. The data included in the associated X-ray image and mark are stored in the storage unit 33 as one file. And the storage unit 3
3 to the hard disk 52.

FIG. 4 shows the image-related device 30 shown in FIG.
It is a functional block diagram inside. In the image-related apparatus 30, the product marked by the laser marker 20 and the inspection result by the image inspection unit 18 of the X-ray foreign substance inspection apparatus 10 are collated, and the number relating to the same product is associated with the inspection result. Further, an X-ray image corresponding to this number is obtained from the image storage unit 17 in the X-ray foreign substance inspection device 10. Then, the number, the inspection result, and the X-ray image are associated with each other,
The file is stored in the storage unit 33 as one file. Also,
In the number recording section 34, the number counted by the laser marker 20 is recorded. When the system is reset, the number recorded in the number recording unit 34 is supplied to the count setting unit 26 in the laser marker 20.

Hard disk 52 in this computer
The file in which the date, the serial number, the inspection result, and the X-ray image which are stored in the storage unit 33 in the image-related apparatus 30 are sequentially stored. Every day, when it is time to finish the production of this product, the belt conveyor, transport conveyor 12, printing conveyor 22, X-ray foreign substance inspection device 10, laser marker 20, and image-related device 3
0 is turned off. Here, it is preferable that the power of the belt conveyor be turned off when a signal to turn off the power is supplied from the power cutoff unit 43 to the control panel 11. This operation of turning off the power is executed in the power cutoff unit 43 connected to the computer. The power is shut off in conjunction with the clock and calendar in the computer. After that, the above-described inspection information stored in the hard disk 52 is recorded on the DVD-RAM. DVD-
If the inspection information is recorded on a recording medium that is easily movable, such as a RAM, the inspection information can be obtained by a simple device such as a personal computer. Further, if one day of inspection data is stored in one DVD-RAM, it is convenient to search for inspection data later. However, the storage medium to be stored is not limited to the DVD-RAM. In addition, for example, CD-R (Compac
t Disk-Recordable), CD-RW (Compact Disk-ReWr)
itable, magnetic cartridge tape (Magnetic Cartrid)
ge Tape). That is, any storage device that can store inspection data may be used.
The storage device is determined in consideration of an amount of data to be stored, an access speed, a price, and the like. When all the inspection information in the hard disk 52 is recorded on the DVD-RAM, the power of the computer is automatically turned off. Before the automatic power-off, the date and time of the file stored in the hard disk 52 are referred to confirm whether the data is to be stored in the DVD-RAM. And
When the files to be stored in the DVD-RAM disappear from the hard disk 52, the power of the computer is set to be turned off.

As described above, by accumulating the electronic data of all the manufactured products, it is possible to find out the cause of the manufacturing of the defective product in relation to other manufacturing processes. In other words, it is estimated in which manufacturing process a defect has occurred based on the time when a defective product is found. It is also possible to estimate the relationship with the raw material purchase state from the date on which the defective product was found. X-ray images of products,
Since information such as the inspection date and time and the serial number can be obtained for all products, it is easy to associate the manufacturing process and the raw material supply state with defective products. Therefore, the information can be used for improving the quality of the product. Further, it can be managed in association with quality information in each process from a raw material producing place to a production process, a distribution process, and a disposal process.

FIG. 5A is a top view of the X-ray image inspection system. FIG. 5B is a side view of the X-ray image inspection system. The products are shown in FIG. 5 (A) and FIG.
The finished product is transported to the X-ray image inspection system of the present invention by the belt conveyor shown in FIG. The products are lined up on a belt conveyor and sequentially conveyed to an X-ray image inspection system. This belt conveyor is smoothly connected to the transport conveyor 12 in the X-ray foreign substance inspection device 10, and the products transported by the belt conveyor are moved to the transport conveyor 12. When a product is being conveyed by the conveyor 12, the product is sequentially inspected by the X-ray foreign substance inspection device 10 to determine whether a foreign substance is mixed in the product. Thereafter, the product is transferred to a printing conveyor 22 which is smoothly connected to the end of the conveyor 12. The products are sequentially conveyed to the laser marker 20 by the printing conveyor 22. At the laser marker 20, the product is marked with a laser beam as described above. Thereafter, the sorting device 44 sorts the product into a non-defective product and a non-defective product based on the result of the X-ray foreign matter inspection device 10 determining whether the product is a non-defective product or a non-defective product.

In the X-ray image inspection system described above, a product to be inspected is inspected as follows.
FIG. 6 is a flowchart showing the procedure of the X-ray image inspection method. After the products are individually packaged, the products are placed in a row on a belt conveyor and guided to a metal detector 41 and a weighing machine 42. The product may pass either test equipment first. Here, it is assumed that the product passes from the metal detector 41.

The metal detector 41 determines whether a metal is contained in the product (ST1). Normally,
Inspection by the metal detector 41 ensures that the product is free of metals. Also, by the measuring device 42,
The weight of the product to be measured is measured, and it is determined whether the product is manufactured without excess or shortage (ST2).

Next, the product undergoes an X-ray foreign substance inspection (S
T3). Here, an X-ray image of the product is taken,
The line image is saved. The product is a metal detector 41 and a scale 4
After passing through the conveyor belt, the product is placed on the conveyor surface of the belt conveyor. Belt conveyor and X-ray foreign matter inspection device 1
The product is smoothly moved from the belt conveyor to the transport conveyor 12 because the product is smoothly and continuously connected to the transport conveyor 12 in the area 0. Thereafter, when the product is placed on the transport conveyor 12 and the product comes directly below the X-ray irradiation unit 14, the sensor 13 detects the product. Then, a sensing signal is output from the sensor 13 to the X-ray irradiator 14, and the X-ray irradiator 14 irradiates the product with X-rays. The X-ray transmitted through the product reaches the X-ray receiving unit 15 and the X-ray of the product
A line image is obtained. The X-ray image obtained by the X-ray light receiving unit 15 is supplied to the image signal conversion unit 16 at the next stage and also to the image display device 45 so that the X-ray image can be observed in almost real time. It is. Thereafter, the image signal converter 16 acquires the X-ray image signal as a file, and compresses the image file in a predetermined format. Then, the compressed image file is stored in the image storage unit 17.

Next, the X-ray image of the product stored in the image storage unit 17 is supplied to the image inspection unit 18. In the image inspection unit 18, the X-ray image of the product is image-analyzed, and it is inspected whether the content of the product is insufficient, the shape of the content is not missing, or an unnecessary material is not mixed in the product. (ST4).

Transport conveyor 1 in X-ray foreign substance inspection device 10
2 is connected to the printing conveyor 22 in the laser marker 20 continuously and smoothly. Therefore, the product that has been inspected in the X-ray foreign matter inspection device 10 is smoothly carried to the printing conveyor 22 in the laser marker 20. When the product comes directly above the laser emitting unit 23, a laser beam is emitted from the laser emitting unit 23 into a product packaging bag (ST5).
This laser beam contains the date and the serial number as information. The date is obtained from a clock built into the system. In addition, as the numbers are counted one by one by the counter unit 25, consecutive numbers are sequentially given to the product as serial numbers. Counter part 2
5 starts counting from an initial value input to the print controller 24. In the print controller 24, a signal for controlling a laser beam corresponding to the serial number of each product is supplied to the laser emitting unit 23. As a result, the laser beam is emitted from the laser emitting unit 23 because the mark having the information of the inspection date and the serial number is added to the packaging bag.

Next, in the image-related apparatus 30, the product to which the mark having the serial number or the like as information is given by the laser marker 20 and the inspection result obtained by the image inspection section 18 in the X-ray foreign substance inspection apparatus 10 are shown. Matched. The serial numbers and inspection results, each of which are of the same product, are stored in association with each other (ST6). Further, an X-ray image corresponding to the serial number is obtained from the image storage unit 17 of the X-ray foreign substance inspection device 10 and stored. Then, the inspection result and the X-ray image corresponding to a certain serial number are stored in the same file.

In parallel with the processing in the image-related device 30, in the sorting device 44, non-defective products and defective products are separated and moved to different places.

Files corresponding to a series of serial numbers are stored in the hard disk 52. The defective report extracted from this file is sent to the printer 54.
(ST7).

Within a predetermined time (eg, within one day)
After checking the number of products that can be processed, the files stored in the hard disk 52 are moved to a portable storage medium (for example, DVD-RAM) (ST8).

Finally, in the power cutoff section 43, the power of the belt conveyor, the conveyor 12, the printing conveyor 22, the X-ray foreign substance inspection device 10, the laser marker 20, and the image-related device 30 is turned off (ST9).

The operation of the system when the system is reset will be described. What becomes difficult when the system is reset is to appropriately assign a serial number after the reset, following the serial number before the reset. In the system of the present invention, the serial number of the counter section 25 inside the laser marker 20 is recorded in the number recording section 34 of the image-related apparatus 30, thereby solving a problem that may occur at the time of reset.

The count setting section 26 in the laser marker 20
In, the number printed just before the reset is
The data is supplied to the number recording unit 34 in the image-related device 30 and recorded. When the system is reset, the number is obtained from the number recording unit 34 and the counter unit 2
5 is supplied with that number and it is possible to count from the serial number following the serial number before the system was reset.

FIG. 7 shows an image-related device 3 acquired by the X-ray foreign matter inspection apparatus 10 shown in FIG. 1 and shown in FIG.
An example of the image stored in the “0” is the X-ray image showing the display screen displayed on the screen. The X-ray image shown in FIG. 7 is a monotone image. In this example, six mini hamburgers are arranged by containers in two columns and three rows. As shown in FIG. 7, the mini hamburger is projected black, and the container is projected as transparent black, which is considerably lighter than the mini hamburger.

In the image analysis for analyzing the X-ray image, a threshold value of the brightness of the image portion is set. That is, at a position having a value larger than this threshold value, there is no mini hamburger at that position. Conversely, at a position having a value smaller than this threshold value, there is a mini hamburger or unnecessary foreign matter at that position. In the case of such a product arranged in a fixed container, since the coordinate area where the mini hamburger should be located is predetermined, at least the mini hamburger depends on whether the specific coordinate area is higher or lower than the threshold value. Deficiencies or deficiencies can be checked. If there is a brightness region having a value lower than the threshold value (that is, a region that appears black) in the coordinate region where there should be no mini hamburger, there is a high possibility that an unnecessary object is mixed in the product.

FIG. 8 shows an example of an image obtained by combining the image shown in FIG. 7 and the information associated with the image by the image-related device 30 shown in FIG. It is the figure which showed the screen, and an X-ray image. FIG.
8 is shown on the right side of FIG. "2000." shown at the top right of FIG.
“1.6 11:18” indicates the time at which the image shown on the left side of FIG. 8 was acquired. Further, “under operation” shown thereunder indicates that the X-ray image inspection system of the present invention is operating. Further, the “serial number 16000001” shown thereunder indicates that the serial number assigned to the product corresponding to the acquired image is 1600.
0001. Further, the “total filing number 10” shown thereunder indicates that the total number of combined images up to the time when this image is acquired is 10. In addition, the “detection number of shortage of pieces 1” shown below indicates that the number of inspected objects (ie, the number of defective products with a shortage of pieces) in which the number of mini hamburgers to be included in one product is insufficient is one. It indicates that there is. Further, “the number of foreign object detections 1” shown thereunder indicates that the number of inspected objects having foreign objects in the package was one. Further, the “processing time (m seconds) 2
53 ”indicates that the number of mini hamburgers and the number of mini hamburgers in the package are detected after the image shown on the left side of FIG. 8 is acquired, and the production date and the serial number of the product are assigned to each product. 253 processing time
m seconds. “Mini hamburger” shown at the top of the left screen indicates that the inspection object of the X-ray image inspection system of the present invention is a mini hamburger.

FIG. 9 is a diagram showing an example of a defective report output from the printer shown in FIG. The defective product report prints information on defective products detected by the X-ray image inspection system according to the present invention, that is, those in which foreign matter is mixed in the inspection object and those in which the number of mini hamburgers is insufficient. This is what was output. In this defective product report, the date when the defective product was detected (for example, 1999.10.18), the time (for example, 08:53), the image file name corresponding to the defective product (for example, AJ000095.JPG), And the defect content of the defective product (for example, a foreign substance was detected)
Is printed. In addition, the date of the X-ray image inspection, the name of the inspected product,
The total number of filings of the file in which the inspection result of the inspection object, the predetermined number, and the image data are associated with each other, the final serial number assigned to the last inspection object, and the like are printed. In addition, in the header part of the defective product report, the serial number of the product that was last marked by the laser beam, the number of inspected items that were detected to be insufficient in the number of mini hamburgers in the inspected item, In addition, the number of inspection objects in which foreign matter is detected in the inspection object is printed.

FIG. 10 shows a product image retrieved on the basis of the serial number and stored on the DVD-RAM disk using the DVD-RAM drive shown in FIG. 1 and information on the product is displayed on the screen. It is the figure which showed the display screen, and an X-ray image. In the field where the type name is input, a name relating to a desired product is input, and a product having a name to be searched is selected. When the reference button arranged on the right side of the column for inputting the type name is pressed, a window showing a list of the type names is newly displayed, and the type name is selected from the list, so that the product to be searched is selected. May be selected.

In the column for selecting a search drive, a search drive to be searched is selected. When a search drive is selected, a list of drives that can be searched is displayed by clicking an arrow on the right of a column in which the search drive is selected with a mouse or the like. The drive searched from this list can be selected.

As described above, after the type name and the search drive have been determined, the user can input a desired serial number in the column for inputting the serial number. After inputting the serial number in the above field, the user clicks the search button. Then, the image data on the mini hamburger corresponding to the serial number from the selected search drive, the result of the number in the package, and the result of detecting the foreign matter in the package are displayed on the screen. The input number result indicates whether or not the number of mini hamburgers in the inspection object corresponding to the serial number is a desired number. The foreign substance detection result indicates whether a foreign substance is present in the inspection object corresponding to the serial number. Further, when a print button arranged below the inspection button shown in FIG. 10 is clicked, a serial number, an X-ray image corresponding to the serial number, a shortage of input, and foreign matter detection are printed.

An NG report button is arranged on the inspection button shown in FIG. When this NG report button is clicked on with a mouse, the NG report shown in FIG. 9 is displayed on the screen. This NG report shows on the screen defective product information on defective products in the drive entered in the column in which the product name is entered and in the drive entered in the column in which the search drive is entered. Further, when the print button is clicked, the NG report shown on the screen is printed.

When the end button arranged at the lower right of the screen shown in FIG. 10 is clicked, the search screen shown in FIG. 10 is closed, and the search is ended.

Although not shown in FIG. 10, it may be set so that the search is executed at the inspection date and time or the inspection date and time range. Further, it may be set so as to be searched in data in which a product with a shortage in quantity or a product of foreign object detection is stored.

Therefore, it is possible to search for products satisfying predetermined conditions from all products.

The present invention is not limited to the above-described embodiment, but can be implemented with various modifications within the technical scope.

[0055]

According to the X-ray image inspection system and the X-ray image inspection method of the present invention, quality information such as contamination of foreign matters and the number of contents is applied to all products by the information attached to each product. Product quality can be controlled.

Further, it is possible to search for products of a predetermined condition from all products. The quality information of all products can be confirmed by the image of the measured object.

Further, quality information of all products can be shared by a computer network or the like.

Further, by associating the quality information of the DUT having a quality problem with the pre-process and the raw material supply state, it can be utilized for quality improvement.

From the raw material producing area to the production process, distribution process,
And it can be managed in association with quality information in each process up to the disposal process.

[Brief description of the drawings]

FIG. 1 is an overall functional block diagram of an X-ray image inspection system according to an embodiment of the present invention.

FIG. 2 is a functional block diagram of the X-ray foreign matter inspection apparatus shown in FIG.

FIG. 3 is a functional block diagram of a laser marker shown in FIG. 1;

FIG. 4 is a functional block diagram of the image-related apparatus shown in FIG.

FIG. 5A is a top view of the X-ray image inspection system. FIG. 1B is a side view of the X-ray image inspection system.

FIG. 6 is a flowchart showing a procedure of an X-ray image inspection method according to one embodiment of the present invention.

7 is an X-ray image showing a display screen in which an example of an image acquired by the X-ray foreign matter inspection apparatus shown in FIG. 1 and stored in the image-related apparatus shown in FIG. 1 is displayed on a screen It is.

8 shows a display screen in which an example of an image obtained by combining the image shown in FIG. 7 and the information associated with the image by the image-related device shown in FIG. 1 is displayed on the screen. It is a figure and an X-ray image.

FIG. 9 is a diagram showing an example of a defective product report output from the printer shown in FIG. 1;

FIG. 10 shows a DVD-R retrieved using the DVD-RAM drive shown in FIG.
Figure showing a display screen on which a product image stored on an AM disk and information on the product are displayed on a screen and X
It is a line image.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 X-ray foreign substance inspection device 20 laser marker 30 image-related device 41 metal detector 42 measuring device 43 power cutoff unit 44 sorting device 45 image display device 51 CPU 52 hard disk 53 DVD-RAM drive 54 printer

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Noriyoshi Yamauchi, Inventor 110-3, Kamiarai, Tokorozawa-shi, Saitama (72) Inventor, Takeshi Sada 1-36-1, Nishikata 1-chome, Bunkyo-ku, Tokyo F-term (reference) 2C362 CB67 2G001 AA01 BA11 CA01 FA06 HA13 JA09 JA16 KA03 LA01 NA17 PA03 PA11 PA30 RA06

Claims (13)

[Claims] 1. An X-ray inspection means for irradiating an X-ray to an inspection object to acquire an X-ray image of the inspection object, and inspecting the inspection object by using the X-ray image. X-rays, comprising: an image inspection unit for obtaining an inspection result; and a laser recording unit for emitting a laser beam to the inspection object and recording predetermined information on the inspection object. Image inspection system. 2. The X-ray image inspection system according to claim 1, wherein the predetermined information includes a date when the inspection object is inspected and a serial number of the inspection object. 3. An X-ray image inspection system according to claim 1, wherein said laser recording means includes control means for controlling a timing at which said predetermined information is recorded. 4. A laser recording means, comprising: a counter for counting a number corresponding to the predetermined information from a predetermined value; and recording on an inspection object immediately before reset based on a number output from the counter. 4. An X-ray image according to claim 1, further comprising: a count setting means for inputting a number corresponding to the input information and starting counting from the next number. Inspection system. 5. An associative storage unit for storing the inspection result, the predetermined information, and the X-ray image in association with each other, and a distributing unit for distributing an inspection object based on the inspection result. The X-ray image inspection system according to any one of claims 1 to 4, wherein the inspection is performed. 6. The number storage for outputting, to the laser recording means, a number corresponding to the information recorded on the inspection object immediately before resetting, when the laser recording means is reset. 6. The X-ray image inspection system according to claim 5, further comprising means. 7. The apparatus according to claim 1, further comprising storage means for storing the inspection result, the predetermined information, and the X-ray image as predetermined data for all inspected objects. The X-ray image inspection system according to claim 5 or 6. 8. A signal supply means for supplying a predetermined signal when the data is stored in a predetermined storage medium; acquiring the signal to obtain the X-ray inspection means, the image inspection means, and the laser; The X-ray image inspection system according to claim 7, further comprising: a recording unit, the related storage unit, the distribution unit, and a stop unit that stops power of the storage unit. 9. The X-ray image inspection system according to claim 1, further comprising metal detection means for detecting whether metal is mixed in the inspection object. . 10. The X-ray image inspection system according to claim 1, further comprising a weighing means for weighing the inspection object. 11. The X-ray image inspection according to claim 1, further comprising output means for outputting the inspection result and information recorded on the inspection object. system. 12. A step of irradiating the inspection object with X-rays to obtain an X-ray image of the inspection object; inspecting the inspection object using the X-ray image; An X-ray image inspection method, comprising: obtaining a laser beam onto the object to be inspected, and recording predetermined information on the object to be inspected. 13. A step for storing the inspection result, the predetermined information and the X-ray image in association with each other, and a step for sorting the inspection object based on the inspection result. 13. The X according to claim 12, comprising:
Line image inspection method.