TW202107076A - Inspection device, device for manufacturing package, and method for manufacturing package - Google Patents

Abstract

Provided is an inspection device, etc., whereby inspection can be performed with higher precision. In the present invention, an irradiation output detection value representing the irradiation output of X-rays by an X-ray irradiation device is calculated on the basis of an X-ray transmission image, and the irradiation output by the X-ray irradiation device is controlled so that the irradiation output detection value is a predetermined value. The irradiation output detection value is calculated on the basis of the luminance of a region excluding a tablet region 5x, and/or a flange part region 9x, of a storage region 2x on a path that connects an irradiation source and an X-ray line sensor over the shortest distance in the X-ray transmission image. Consequently, the irradiation output detection value is calculated on the basis of the luminance of the region of the X-ray transmission image that is most readily brightened, and the X-ray irradiation device is controlled so that the irradiation output detection value pertaining to the region that is most readily brightened is a predetermined value, i.e., so that the region that is most readily brightened has adequately high luminance. The range of output detected by the X-ray line sensor is therefore increased, and inspection can be performed with higher precision.

Description

Inspection device, packaging body manufacturing device, and packaging body manufacturing method

The present invention relates to a device and method used when inspecting packages containing contents such as tablets.

In the fields of conventional medicines, food products, and the like, PTP (press through package) sheets are widely used as packaging sheets for packaging tablets and the like.

The PTP sheet is provided with a container film formed with a bag portion for accommodating the contents and a cover film attached to seal the opening side of the bag portion to the container film, and is configured to press the bag portion from the outside to be placed by it. The contained contents are pierced into the cover film of the lid, and the contents can be taken out.

Such a PTP sheet undergoes a process of forming a bag part of a belt-shaped container film, filling the bag part with contents such as tablets, and sealing the opening side of the bag part to the container film It is manufactured by the installation process of attaching the tape-shaped cover film to manufacture the PTP film, and the cutting process of cutting the PTP sheet into the final product from the PTP film.

In general, when PTP sheets are manufactured, inspections for PTP films or PTP sheets (hereinafter, these are collectively referred to as "packages") are performed. The inspection includes inspections related to abnormalities of the lozenges (such as the presence or absence of the lozenges in the bag, cracks, breakage, etc.) or the storage space in the bag or the presence or absence of foreign objects in the flange around the bag (such as metal pieces or ingots). Fragments of the agent, etc.) related inspections, etc.

In recent years, from the viewpoint of seeking improvement in light-shielding properties and moisture resistance, the number of two thin films, container films and cover films, made of opaque materials using aluminum or the like as a base material has increased.

In such a case, the various inspection systems described above are performed using an X-ray inspection device or the like. Generally, an X-ray inspection apparatus is provided with an X-ray generator (X-ray source) that irradiates X-rays to a package, and an X-ray detector that detects X-rays penetrating the package. The X-ray inspection apparatus obtains an X-ray penetration image having a shade of brightness corresponding to the amount of penetration of X-rays, and performs various inspections based on the X-ray penetration image (for example, refer to Patent Document 1, etc.). In addition, the brightness of the X-ray penetration image is increased or decreased in response to the detection output of the X-ray detector (for example, the light output of the scintillator).

In addition, in order to prevent the deterioration of the X-ray generator or X-ray detector, the detection output of the X-ray detector is reduced. It is known that the irradiation output of the X-ray generator is controlled to become the predetermined output. When the detection output of the X-ray detector decreases, the technique of controlling the X-ray generator to increase the irradiation output (for example, refer to Patent Document 2, etc.). This technique will be described while using FIG. 17 and FIG. 18. Fig. 17 is a graph that succinctly shows the relationship between the tube current and the irradiation output in the X-ray generator. The solid line shows the relationship when the X-ray generator is not degraded so much, and the dotted line shows the relationship when the X-ray generator is degraded. relationship. FIG. 18 is a graph succinctly showing the relationship between the detection output (brightness of the X-ray penetration image) and the irradiation output by the X-ray detector.

Regarding the examples in Figs. 17 and 18, when the X-ray generator is not degraded so much, the X-ray generator (X-ray tube) flows a predetermined tube current, and the irradiation output of the X-ray generator is Lt, X-ray detection The detection output in the detector still becomes Slt. Therefore, the range of the detection output by the X-ray detector is the range from the output Slt to the lowest detection output Smin. However, when the X-ray generator is degraded, even if the tube current flowing through the X-ray generator is the same, the radiation output of the X-ray generator will drop to Lt´. As a result, the detection output of the X-ray detector becomes Slt´. Therefore, the range of the detection output by the X-ray detector is narrowed from the output Slt´ to the lowest detection output Smin. The above technique is also in the case where the detection output range is narrowed, for example, by increasing the tube current by Δi to return the irradiation output to Lt to suppress the narrowing of the detection output range. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] JP 2013-253832 A [Patent Document 2] Japanese Patent Application Publication No. 2018-28514

[The problem to be solved by the invention]

As shown in FIG. 19, the maximum range of the detection output by the X-ray detector (hereinafter referred to as "measurable tone range") is the range from the highest detection output Smax to the lowest detection output Smin. On the other hand, the detection output range of the X-ray detector based on the X-ray penetrating the package (hereinafter referred to as the "effective gradation range") is based on the X-ray penetrating bag (containment space) The detection output Sp of the radiation or the detection output Sf of the X-ray penetrating the flange is the range up to the minimum detection output Smin. That is because X-rays are most likely to penetrate the part where only the bag or flange is present in the package. Moreover, the effective gradation range includes the detection output Sta using X-ray penetrating the tablet, the detection output Stb using X-ray penetrating powder or fragments of the tablet, and the X-ray detection output using foreign objects such as penetrating metal pieces. The detection output So of the radiation, etc., and the inspection of the package body is carried out by using the brightness difference in the X-ray penetration image caused by the difference in the detection output.

However, with the technique described in Patent Document 2 described above, the above-mentioned control is performed before the inspection of the inspection target, etc., and the inspection target is not interposed between the X-ray generator and the X-ray detector. Therefore, when the technology is used for packaging inspections, the actual detection output of the X-ray detector will be very low according to the extent of the packaging, and the detection output Sp and the detection output Sf may become quite low. . Therefore, the effective gradation range becomes very narrow relative to the measurable gradation range, and the ability of the X-ray detector cannot be fully utilized. As a result, the gradation of the detection output and the luminance gradation in the X-ray penetration image are not fully utilized. The resolution is reduced, and high-precision inspection may not be possible.

In addition, the above-mentioned problems may occur not only in PTP packaging, but also in other packaging fields such as SP (strip package) packaging for packaging contents such as tablets. In addition, it is not limited to X-rays, and other electromagnetic waves that penetrate the package such as megahertz electromagnetic waves may also occur.

The present invention was developed in view of the above circumstances, and its purpose is to provide an inspection device, a packaging body manufacturing device, and a packaging body manufacturing method that can perform more accurate inspections. [Means to solve the problem]

Hereinafter, each method suitable for solving the above-mentioned purpose will be explained separately. In addition, as necessary, specific effects are added to the corresponding means.

Means 1. An inspection device is an inspection device for inspecting packaging. The packaging system is equipped with a first film made of opaque material and a second film made of opaque material, and is located in the containing space formed between the two films The contents are contained, and the characteristics of the inspection device are: The electromagnetic wave irradiation means is formed by irradiating the package body with an irradiation source of electromagnetic waves that can penetrate the package body from the side of the first film; The imaging means has a detection unit that is arranged on the second film side so as to interpose the packaging body and the electromagnetic wave irradiation means facing each other and can detect the electromagnetic waves penetrating the packaging body. The detection output of the detection section of electromagnetic waves, to obtain the electromagnetic wave penetration image with the intensity of the brightness; Image processing means, based on the electromagnetic wave penetration image obtained by the aforementioned shooting means, the inspection of the aforementioned package can be performed; The radiation output detection means calculates the radiation output detection value representing the radiation output of the electromagnetic wave by the electromagnetic wave radiation means based on the aforementioned electromagnetic wave penetration image; and The output control means controls the irradiation output of electromagnetic waves by the electromagnetic wave irradiation means so that the detection value of the irradiation output becomes a predetermined value, And the structure is that: the aforementioned radiation output detection means is based on the aforementioned electromagnetic wave penetration image, which is located on the path connecting the aforementioned radiation source and the aforementioned detection unit at the shortest distance, in addition to the aforementioned content in the storage area corresponding to the aforementioned storage space The brightness of at least one of the area other than the corresponding content area and the flange portion area corresponding to the flange portion around the storage space is calculated to calculate the irradiation output detection value.

In addition, the following means are also the same. The above-mentioned "package" includes: a sheet-like package that becomes a product (for example, a "PTP sheet" or "SP sheet" and other packaging sheets) or before the sheet-like package is cut away The tape-shaped packaging (such as packaging film such as "PTP film" or "SP film"). Furthermore, as electromagnetic waves, X-rays or megahertz electromagnetic waves can be cited.

In addition, as the "irradiation output detection value", for example, the average value, the center value, and the center of gravity value of the brightness in the electromagnetic wave penetration image can be cited. Furthermore, the "flange portion" includes a portion (scrap portion) that is located around the accommodating space in the tape-shaped package and that is to be discarded when the final product is obtained.

According to the above-mentioned means 1, the irradiation output of electromagnetic waves by the electromagnetic wave irradiation means is controlled so that the detection value of the irradiation output calculated based on the electromagnetic wave penetration image becomes a predetermined value. In addition, the detection value of the radiation output is based on the brightness of at least one of the area other than the content area and the flange area in the containment area located on the path connecting the radiation source and the detection unit at the shortest distance in the electromagnetic wave penetration image. And be calculated.

Here, when considering the attenuation of electromagnetic waves due to the influence of the distance between the detection unit and the irradiation source, the detection output of the detection unit is based on the electromagnetic wave passing through the path connecting the detection unit and the irradiation source at the shortest distance. The highest output. Therefore, in the electromagnetic wave penetration image, the area on the path connecting the detection unit and the irradiation source at the shortest distance is likely to be brighter than other areas (easy to be high in brightness). In addition, when considering the attenuation of electromagnetic waves due to the influence of the package, the detection output of the detection unit is based on the electromagnetic wave that does not penetrate the contents but only penetrates the part forming the containment space, or based on only the convex The electromagnetic wave at the edge becomes the highest output. Therefore, the area of the accommodating area in the electromagnetic wave penetrating image or the flange area other than the content area is likely to be brighter than other areas in the electromagnetic wave penetrating image (easy to become a high brightness area).

Therefore, according to the above method 1, the detection value of the radiation output is calculated based on the brightness of the area where the electromagnetic wave penetrates the image that is most likely to be brightened. Then, the detection value of the irradiation output of the area that is most likely to be brightened becomes a predetermined value, that is, the area that is most likely to be brightened is sufficiently high-brightness to control electromagnetic wave irradiation means. Therefore, the highest value can be set high enough in the range of the detection output of the detection unit (effective tone range), which can be effective relative to the maximum range of the detection output of the detection unit (measurable tone range) Set the gradation range to be wider. Thereby, the gradation of the detection output and the resolution of the intensity gradation in the electromagnetic wave penetrating the image can be improved, and higher-precision inspection can be performed.

In addition, the part of the package that forms the storage space is often thinly extended in order to form the storage space. Therefore, in the electromagnetic wave penetration image, the area other than the content area in the storage area is likely to be brighter than the flange area. Therefore, in terms of setting the effective gradation range more appropriately, it is better to use the configuration to calculate the radiation output detection value based on the brightness of the area other than the content area in the storage area.

On the other hand, the flange area generally exists wider than the area other than the content area in the storage area. Therefore, in terms of improving the ease of calculation of the radiation output detection value, it is preferable to have a configuration to calculate the radiation output detection value based on the brightness of the flange region.

In addition, the predetermined value is based on the highest brightness that can be expressed in the image with electromagnetic wave penetration (the highest output of the detectable output that can be output) is output from the detection unit. For example, in the example of FIG. 19, the highest detection output The value of the detection value of the irradiation output calculated in the area of the brightness when Smax is output is preferable. Then, as a result, the brightness of the area that is most likely to be brightened by the electromagnetic wave penetration image (the area used for the calculation of the radiation output detection value) becomes the brightness close to the highest brightness that can be expressed in the electromagnetic wave penetration image (for example, the highest It is better to control the irradiation output of electromagnetic waves by means of electromagnetic wave irradiation means by means of 80-90% of the luminance.

In addition, as in the method 3 described later, when at least one of the first and second films is made of a metal film or the like, and is provided with a pocket for forming a storage space, it is preferable to remove "the storage area except for The area other than the content area" is set to "the area other than the content area and the area corresponding to the outer edge of the bag in the storage area". The reason is that the outer edge of the pocket (the part corresponding to the side wall) easily shields electromagnetic waves, so in terms of obtaining a more appropriate detection value of the radiation output, it is better not to use the brightness of the area corresponding to the outer edge.

Means 2. Such as the inspection device of means 1, wherein: the radiation output detection means is based on the electromagnetic wave penetration image except for the cut-off area corresponding to the cut-off portion provided on the package body, and is attached to the aforementioned The marking of the package body corresponds to the brightness of the area outside the marking area, and the aforementioned irradiation output detection value is calculated.

When penetrating the cut-off part (for example, a stitching thread or a slit, etc.) or marking, electromagnetic waves may be affected by these. Therefore, when the radiation output detection value is calculated based on the brightness of the cut-off area or the marking area, the radiation output detection value may become inappropriate.

In this regard, according to the above-mentioned method 2, the detection value of the irradiation output is calculated based on the brightness of the area other than the cut-off area and the marking area. Therefore, it is possible to calculate a more appropriate radiation output detection value without being affected by the cut-off part or marking. As a result, inspections with higher accuracy can be performed more stably.

Means 3. The inspection device of means 1 or 2, wherein at least one of the first film and the second film has an inner space to form the bag portion of the storage space, and is composed of a metal film or a film with a metal layer, It has an area specifying means that specifies the electromagnetic wave penetrating the aforementioned content area in the image, and specifies the ring-shaped shadow around the specified content area as the outline of the aforementioned containment space. The inside of the outline is designated as the aforementioned containment area, And the structure is that the aforementioned radiation output detection means is calculated based on the brightness of the aforementioned electromagnetic wave penetration image except for the aforementioned content area specified by the aforementioned area-specific means in the aforementioned containment area specified by the aforementioned area-specific means The aforementioned irradiation output detection value.

In the case where at least one of the first film and the second film has a bag and is formed of a metal film or a film with a metal layer, in the electromagnetic wave penetration image, it is located around the contents and is in contact with the bag ( The ring-shaped part corresponding to the outer edge of the storage space becomes a dark shadow that is displayed darker than the surroundings.

Taking advantage of this, according to the aforementioned means 3, the ring-shaped dark shadow located around the specified content area is specified as the outline of the storage space, and the inner side of the outline is specified as the storage area. Therefore, the location of the storage area can be specified more accurately and easily. As a result, it is possible to calculate a more appropriate radiation output detection value.

Means 4. For example, the inspection device of any one of means 1 to 3, which has a foreign body specific means, which specifies the foreign body area corresponding to the foreign body in the aforementioned electromagnetic wave penetration image, and is constituted as follows: the aforementioned radiation output detection means is based on the aforementioned electromagnetic wave The brightness of the area other than the foreign object area in the penetrating image is calculated, and the detection value of the irradiation output is calculated.

According to the above-mentioned means 4, the detection value of the irradiation output is calculated based on the brightness of the area other than the foreign object area (for example, the area considered to have metal flakes, lozenge fragments or powder, hairline foreign objects, etc.). Therefore, it is possible to calculate a more appropriate radiation output detection value without being affected by foreign objects. As a result, inspections with higher accuracy can be performed more stably.

Means 5. A packaging body manufacturing device characterized by an inspection device equipped with any one of means 1 to 4.

According to the above-mentioned means 5, the same effects as the above-mentioned means 1 and so on can be obtained.

Means 6. A packaging body manufacturing method is a packaging body manufacturing method used when a packaging body is obtained. The packaging system is equipped with a first film made of opaque material and a second film made of opaque material, and Contents are contained in the containing space formed between the two films, and the packaging body manufacturing method is characterized by: Installation project, install the belt-shaped first film and the belt-shaped second film to be transported; The filling process is to fill the contents in the storage space formed between the first film and the second film; and The inspection project is to perform the inspection of the aforementioned packaging body obtained through the aforementioned installation project and the aforementioned filling project, The aforementioned inspection project includes: In the irradiation process, the package body is irradiated with electromagnetic waves that can penetrate the package body from the side of the first film by the irradiation source of the established electromagnetic wave irradiation means; In the photographing process, a photographing means with a detection unit is used. Based on the detection output from the detection unit that uses the electromagnetic wave penetrating the packaging body, an electromagnetic wave penetration image with the intensity of the brightness is obtained, and the detection unit is separated by Arranged on the side of the second film in such a way that the packaging body and the electromagnetic wave irradiation means are opposed to each other and can detect electromagnetic waves penetrating the packaging body; The good or bad judgment project, based on the electromagnetic wave penetration image obtained by the aforementioned shooting project, is used to judge the goodness of the aforementioned package; The radiation output detection project, based on the aforementioned electromagnetic wave penetration image, calculates the radiation output detection value representing the radiation output of the electromagnetic wave by the aforementioned electromagnetic wave radiation means; and The output control process controls the irradiation output of electromagnetic waves by the electromagnetic wave irradiation means in such a way that the detection value of the irradiation output becomes a predetermined value, In the aforementioned radiation output detection process, based on the aforementioned electromagnetic wave penetration image, which is located on the path connecting the aforementioned radiation source and the aforementioned detection unit at the shortest distance, in the storage area corresponding to the aforementioned storage space except for the content corresponding to the aforementioned contents The brightness of at least one of the area other than the object area and the flange portion area corresponding to the flange portion around the storage space is calculated, and the aforementioned irradiation output detection value is calculated.

According to the above-mentioned means 6, the same effect as the above-mentioned means 1 can be obtained.

Hereinafter, an embodiment will be described with reference to the drawings. First, the PTP sheet 1 as a packaging sheet (sheet-like packaging body) will be described.

As shown in FIGS. 1 and 2, the PTP sheet 1 has a container film 3 provided with a plurality of pockets 2 and a cover film 4 attached to the container film 3 so as to plug the pockets 2. In this embodiment, the cover film 4 is attached to the container film 3 in the sheet flange portion 1b of the PTP sheet 1 around the pocket portion 2 (accommodating space 2a described later). In addition, in this embodiment, the "container film 3" constitutes the "first film", and the "cover film 4" constitutes the "second film".

The container film 3 and the cover film 4 in this embodiment are composed of an opaque material using aluminum as a base material (main material). For example, the container film 3 is formed by an aluminum laminated film (a synthetic resin film laminated on an aluminum film). On the other hand, the cover film 4 is formed by an aluminum thin film.

The PTP sheet 1 is formed into a substantially rectangular shape in plan view, and its four corners are arc-shaped with rounded corners. In the PTP sheet 1, a row of pockets composed of two pockets 2 arranged in the short-side direction of the sheet is formed in five rows in the long-side direction of the sheet. That is, a total of ten pockets 2 are formed. In the internal space of each pocket 2, that is, the storage space 2a, the lozenges 5 as "contents" are stored one by one.

In addition, a plurality of saddle stitches 7 as "cut-off portions" are formed on the PTP sheet 1 along the short-side direction of the sheet, which is used to form a thin piece of the pocket 2 containing a predetermined number (two in this embodiment). 6 is cut off in units.

In addition, on the PTP sheet 1, at one end in the longitudinal direction of the sheet, there is attached a label portion 9 with an engraving 8a to indicate various information such as the name of the tablet, batch number, etc. (in this embodiment, the characters "ABC") . The label portion 9 is not provided with the bag portion 2 and is separated from the sheet body portion 1a formed by the five thin pieces 6 by a stitching thread 7.

The PTP sheet 1 of this embodiment is a process of punching the PTP sheet 1 as a final product into a rectangular sheet shape from a tape-shaped PTP film 9 (refer to FIGS. 3 and 4) as a "tape-shaped package". This "belt-shaped packaging body" is manufactured by attaching a belt-shaped container film 3 and a belt-shaped cover film 4 to it.

As shown in FIGS. 3 and 4, the PTP film 9 of the present embodiment is a punching range Ka (hereinafter, a row of PTP sheets 1 in the transport direction of the PTP film 9 (the longitudinal direction of the PTP film 9)). It is only called the "sheet punching range Ka") configuration. FIG. 3 shows the PTP film 9 shortly after the container film 3 and the cover film 4 are installed. FIG. 4 shows the PTP film 9 formed with the stitch stitching 7 and the marking 8a by the stitch stitching forming device 33 and the marking device 34 which will be described later.

In addition, at both ends of the PTP film 9 in the width direction, there are two side scraps 9a extending in a strip shape along the conveying direction of the PTP film 9 so as to sandwich the sheet punching range Ka. In this embodiment, the part of the PTP film 9 corresponding to the aforementioned sheet flange portion 1b and the side waste 9a constitute the flange portion 9b around the bag portion 2 (accommodating space 2a) of the PTP film 9.

Next, the schematic configuration of the PTP packaging machine 10 for manufacturing the above-mentioned PTP sheet 1 will be described with reference to FIG. 5. In this embodiment, the "PTP packaging machine 10" constitutes a "package manufacturing device".

As shown in FIG. 5, on the most upstream side of the PTP packaging machine 10, the web of the tape-shaped container film 3 is wound into a roll shape. The leading end side of the container film 3 wound in a roll shape is guided by a guide roller 13. The container film 3 is hung on the intermittent feed roller 14 on the downstream side of the guide roller 13. The intermittent feed roller 14 is connected to an intermittently rotating motor, and transports the container film 3 intermittently.

Between the guide roller 13 and the intermittent feed roller 14, along the conveying path of the container film 3, a bag portion forming device 16 as a bag portion forming means is arranged. With this, the bag portion forming device 16 forms a plurality of bag portions 2 at a predetermined position of the container film 3 by cold working. The formation of the bag portion 2 is performed in an interval during which the container film 3 is conveyed by the intermittent feed roller 14.

Among them, the PTP packaging machine 10 of this embodiment is configured such that the container film 3 is not only made of aluminum, but also relatively hard and rigid thermoplastics such as PP (polypropylene) and PVC (polyvinyl chloride). Packaging machine (combined use machine) made of resin material. Therefore, a heating device 15 for heating the container film 3 into a soft state is provided on the upstream side of the bag portion forming device 16. Of course, when the container film 3 made of aluminum is formed, the heating device 15 is not used.

The container film 3 sent out from the intermittent feed roller 14 is hung in the order of the tension roller 18, the guide roller 19 and the film receiving roller 20. Since the film receiving roller 20 is connected to a fixed rotating motor, the container film 3 is continuously conveyed at a fixed speed. The tension roller 18 is set in a state where the container film 3 is pulled to the tension side by elastic force to prevent the container film 3 from slackening due to the difference in the conveying action of the intermittent feed roller 14 and the film receiving roller 20, and The container film 3 is kept in a constantly tensioned state.

Between the guide roller 19 and the film receiving roller 20, along the conveyance path of the container film 3, a tablet filling device 21 as a filling means is arranged.

The tablet filling device 21 has a function of automatically filling the tablet 5 in the bag 2. The tablet filling device 21 is synchronized with the action of transporting the container film 3 by the film receiving roller 20, which opens the baffle every predetermined interval to drop the tablets 5, and fills the tablets 5 in each bag with the baffle opening action. 2.

On the other hand, the web forming the belt-shaped cover film 4 is wound into a roll shape on the most upstream side. The leading end of the cover film 4 wound in a roll shape is guided toward the heating roller 23 by the guide roller 22. The heating roller 23 is press-bonded to the aforementioned film receiving roller 20, and the container film 3 and the cover film 4 are sent between the two rollers 20 and 23.

Then, the container film 3 and the cover film 4 pass between the two rollers 20 and 23 in a heated and press-bonded state, and the cover film 4 is adhered to the portion around the bag portion 2 of the container film 3, so that the bag portion 2 is plugged by the cover film 4. live. Thereby, the PTP film 9 which is a "package" in which the tablet 5 is filled in each bag part 2 is manufactured. In addition, the surface of the heating roller 23 is formed with mesh-like fine protrusions for sealing, and strong sealing is achieved by strong pressure bonding.

In addition, the film receiving roller 20 is provided with an encoder (not shown). The film receiving roller 20 rotates a predetermined amount, that is, every time the PTP film 9 is transported, the predetermined amount is output to the X-ray inspection device 45 described later. The timing signal.

The PTP film 9 sent from the film receiving roller 20 is hung in the order of the tension roller 27 and the intermittent feed roller 28.

Since the intermittent feed roller 28 is connected to a motor that rotates intermittently, the PTP film 9 is intermittently transported. The tension roller 27 is set to pull the PTP film 9 to the tension side by elastic force to prevent the slack of the PTP film 9 due to the difference in the conveying action of the film receiving roller 20 and the intermittent feed roller 28. , And keep the PTP film 9 in a constant tension state.

An X-ray inspection device 45 is arranged between the film receiving roller 20 and the tension roller 27 along the transport path of the PTP film 9. The X-ray inspection device 45 is used to detect abnormalities in the bag portion 2 (for example, presence or absence of foreign objects in the accommodating space 2a, etc.), and to detect abnormalities in the flange portion 9b other than the bag portion 2 (for example, foreign objects existing in the flange portion 9b, etc.) X-ray inspection for the main purpose. Of course, the inspection items are not subject to these restrictions, and other inspection items can also be implemented. In this embodiment, the "X-ray inspection device 45" constitutes the "inspection device".

The PTP film 9 sent from the intermittent feed roller 28 is hung in the order of the tension roller 29 and the intermittent feed roller 30. Since the intermittent feed roller 30 is connected to an intermittently rotating motor, the PTP film 9 is intermittently transported. The tension roller 29 is set in a state in which the PTP film 25 is pulled to the tension side by elastic force to prevent the PTP film 25 between the intermittent feed rollers 28 and 30 from slackening.

Between the intermittent feed roller 28 and the tension roller 29, along the transport path of the PTP film 9, a saddle stitch forming device 33 and an engraving device 34 are sequentially arranged. The sewing thread forming device 33 has a function of forming the above-mentioned sewing thread 7 at a predetermined position of the PTP film 9. The marking device 34 has a function of forming the marking 8a at a predetermined position of the PTP film 9 (a position corresponding to the label portion 8). In addition, the portion of the PTP film 9 where the stitching line 7 or the marking 8a is formed may be in a state where the aluminum film is broken.

The PTP film 9 sent from the intermittent feed roller 30 is hung on the downstream side of the PTP film 9 in the order of the tension roller 35 and the continuous feed roller 36. Between the intermittent feed roller 30 and the tension roller 35, a sheet punching device 37 is arranged along the conveying path of the PTP film 9. The sheet punching device 37 has a function as sheet punching means (cutting means) for punching the outer edge of the PTP film 9 in units of the PTP sheet 1.

The PTP sheet 1 punched by the sheet punching device 37 is transported by the conveyor 39 and temporarily stored in the hopper 40 for the finished product. Among them, when it is determined as a defective product by the above-mentioned X-ray inspection device 45, the PTP sheet 1 determined as a defective product is not conveyed to the finished product hopper 40, and the defective sheet is used as a discharge means not shown. The discharge mechanism is separately discharged and moved to a defective hopper (not shown).

A cutting device 41 is arranged on the downstream side of the continuous feed roller 36. Then, the side waste 9 a remaining in a strip shape after being punched by the sheet punching device 37 is guided by the tension roller 35 and the continuous feed roller 36 to the cutting device 41. Here, the continuous feed roller 36 is pressed by the driven roller to carry out the conveying operation while pinching the side waste 9a.

The cutting device 41 has a function of cutting the side waste 9a into a predetermined size. The cut side waste 9a is stored in the waste hopper 43, and is separately disposed of.

In addition, the above-mentioned rollers 14, 19, 20, 28, 29, 30, etc. are in a positional relationship in which the surface of the other rollers and the bag portion 2 are opposed to each other, but because the intermittent feed roller 14 and the like are formed on the surface of each roller The concave portion of the bag portion 2 is accommodated, so there is no case that the bag portion 2 collapses. In addition, the bag portion 2 performs the feeding operation while being accommodated in the recesses of the rollers such as the intermittent feeding roller 14, so that the intermittent feeding operation or the continuous feeding operation is surely performed.

The outline of the PTP packaging machine 10 is as described above, and the configuration of the above-mentioned X-ray inspection device 45 will be described in detail below with reference to the drawings. FIG. 6 is a block diagram showing the electrical configuration of the X-ray inspection device 45. FIG. 7 is a schematic diagram showing the schematic configuration of the X-ray inspection device 45.

As shown in FIGS. 6 and 7, the X-ray inspection device 45 includes: an X-ray irradiation device 51 for irradiating X-rays on the PTP film 9; The sensor camera 52; and the control processing device 53 are used to implement various controls, image processing, arithmetic processing, etc. in the X-ray inspection device 45 such as the drive control of the X-ray irradiation device 51 and the X-ray sensor camera 52.

The "X-ray" in this embodiment is equivalent to "electromagnetic wave". In addition, the "X-ray penetration image" constitutes the "electromagnetic wave penetration image", the "control processing device 53" constitutes the "image processing means", and the "X-ray irradiation device 51" constitutes the "electromagnetic wave irradiation means" and "X-ray ray sensing The "device camera 52" constitutes the "photographing means".

In addition, the X-ray irradiation device 51 and the X-ray sensor camera 52 are housed in a shielding box (not shown) made of a material capable of shielding X-rays. The shielding box is not only provided with a slit-shaped opening for passing the PTP film 9, but also has a structure that suppresses the leakage of X-rays to the outside as much as possible.

The X-ray irradiation device 51 is arranged on the container film 3 side of the PTP film 9 conveyed downward in the vertical direction. The X-ray irradiation device 51 is located at a position opposed to the center portion in the width direction of the inspection area Kb described later in the PTP film 9, and has an irradiation source 51 a that irradiates X-rays. The irradiation source 51a has an X-ray tube that generates X-rays and a collimator (not shown, respectively) for concentrating X-rays, and is configured to have a predetermined expansion (fan angle) in the width direction of the PTP film 9 Fan beam-shaped X-rays are irradiated to the PTP film 9 from the container film 3 side. The X-ray irradiation angle (fan angle) of the X-ray irradiation device 51 is set to an angle that can irradiate the range of the PTP film 9 corresponding to the inspection area Kb described later. In addition, it may be configured to be capable of irradiating X-rays in the shape of a cone beam having a predetermined expansion in the transport direction of the PTP film 9.

In addition, the tube current of the aforementioned X-ray tube put into the X-ray irradiation device 51 can be increased or decreased by controlling the processing device 53 (especially the microcomputer 71 described later). As the tube current increases or decreases, the irradiation output of X-rays irradiated from the X-ray irradiation device 51 increases or decreases.

The X-ray sensor camera 52 is arranged on the opposite side of the X-ray irradiation device 51 via the PTP film 9 along the direction orthogonal to the conveying direction of the PTP film 9 and facing the X-ray irradiation device 51 (In this embodiment, the cover film 4 side).

The X-ray sensor camera 52 is an X-ray sensor 52a having a plurality of X-ray detection elements that can detect X-rays penetrating the PTP film 9 arranged in a row along the film width direction, and is configured to be capable of X-rays penetrating the PTP film 9 are photographed (exposed). Examples of the X-ray detection element include CCD (Charge Coupled Device) having a light conversion layer using a scintillator. In this embodiment, the "X-ray sensor 52a" constitutes the "detection unit".

The X-ray sensor 52a outputs a detection output corresponding to the intensity of the X-ray that penetrates the PTP film 9 and irradiates itself. Among them, the X-ray sensor 52a outputs a certain minimum detection output when the intensity of X-rays irradiated to itself is below the predetermined minimum reference value, and the intensity of X-rays irradiated to itself is the predetermined maximum. When the value is above the reference value, a certain maximum detection output will be output.

In addition, the maximum range of the detection output of the X-ray ray sensor 52a (hereinafter referred to as the "measurable gradation range") is the range from the highest detection output to the lowest detection output, and depends on the penetration The detection output range of the X-ray X-ray sensor 52a of the PTP film 9 (hereinafter referred to as the "effective gradation range") is from the highest attenuation using X-rays penetrating the PTP film 9 The range from the detection output to the lowest detection output.

In addition, the X-ray line sensor camera 52 obtains an X-ray penetration image having a density related to the brightness based on the detection output from the X-ray line sensor 52a. The brightness of the X-ray penetration image is increased or decreased in response to the detection output of the X-ray line sensor 52a. The region (coordinates) corresponding to the lowest detection output in the X-ray penetration image becomes the lowest brightness, and the X-ray penetration image The region (coordinate) corresponding to the highest detection output in the through image becomes the highest brightness.

Furthermore, the X-ray penetration image obtained by the X-ray line sensor camera 52 is converted into a digital signal (image signal) inside the camera 52 according to a predetermined amount of the PTP film 9 being transported, and then converted into a digital signal (image signal). The format of is output to the control processing device 53 (the image data storage device 74). Then, the control processing device 53 performs image processing or the like on the X-ray penetrating image, and performs inspection described later.

Furthermore, it is configured that the path L1 that connects the irradiation source 51a and the X-ray sensor 52a at the shortest distance is arranged in the PTP film 9 in the part corresponding to the inspection area Kb described later. The center of the PTP film 9 in the width direction. Thereby, in the present embodiment, along with the transportation of the PTP film 9, the flange portion 9b and the storage space 2a alternately pass through the path L1. In addition, when the storage space 2a passes through the path L1, the lozenges 5 contained in the storage space 2a may pass through the path L1.

Next, the control processing device 53 will be described with reference to FIG. 6. The control processing device 53 is provided with: a microcomputer 71 in charge of the overall control of the X-ray inspection device 45; an input device (not shown) constituted by a keyboard, mouse, touch pad, etc.; and a display screen such as a CRT or liquid crystal Display device (not shown); image data storage device 74 for storing various image data, etc.; calculation result storage device 75 for storing various calculation results, etc.; setting data storage device 76 for storing various information in advance; and An inspection program memory device 77 for storing software related to inspection, etc. In addition, these devices are electrically connected to the microcomputer 71.

The microcomputer 71 is equipped with: CPU71a as a calculation means; ROM71b for storing various programs; RAM71c for temporarily storing various data such as calculation data or input/output data, etc., and is in charge of various controls in the control processing device 54. The PTP packaging machine 10 is connected to send and receive various signals.

Under such a configuration, the microcomputer 71 drives and controls the X-ray irradiation device 51, the X-ray sensor camera 52, for example, to perform the imaging process of acquiring the X-ray penetration image of the PTP film 9, and based on the X-ray penetration image Image inspection processing of a predetermined part of the PTP film 9, processing of adjusting the irradiation output of X-rays by the X-ray irradiation device 51 based on the X-ray penetration image, and inspection results of the inspection processing for defects in the PTP packaging machine 10 The output processing of the output of the sheet discharge mechanism, etc.

The image data storage device 74 stores various image data including the X-ray penetrating image obtained by the X-ray sensor camera 52 and the binarized image that has been binarized.

The calculation result storage device 75 is for storing inspection result data or statistical data after processing the inspection result data in a probability statistical manner. The inspection result data and statistical data can be appropriately displayed on the aforementioned display device.

The setting data storage device 76 is used for storing various information used in the examination. As these various information, the setting memory includes, for example, the shape and size of the PTP sheet 1, the bag portion 2 and the tablet 5, the shape and size of the sheet frame used to divide the inspection area Kb, the shape and size of the bag frame, and the shape and size of the bag frame. The brightness threshold value of the quantization processing, the reference value used in the judgment of goodness or failure (for example, the minimum area value Lo to exclude the influence caused by noise, etc.) are used in controlling the X-ray irradiation by the X-ray irradiation device 51 The established value K1 etc. used in output.

In this embodiment, the threshold value δ1 is stored as the brightness threshold value. The threshold value δ1 is a brightness threshold value used to specify the outer edge portion of the tablet 5 or the bag portion 2 and foreign objects (fragments or powder of the tablet 5, metal pieces, etc.). The threshold value δ1 is when the irradiation output of the X-ray irradiation device 51 increases or decreases as the tube current of the X-ray tube input to the X-ray irradiation device 51 increases or decreases, the microcomputer 71 responds to the new irradiation output. Update. The update of the threshold value δ1 is performed according to a mathematical formula or table stored in advance by the setting data storage device 76 and representing the relationship between the threshold value δ1 and the tube current. For example, when the tube current is changed to a certain value, the threshold δ1 corresponding to the value is reset and stored in the setting data storage device 76 according to the aforementioned mathematical formula or the aforementioned table, etc. In addition, the threshold value δ1 may not be updated and always set to a constant value.

In addition, the threshold value δ1 is set to be higher than the brightness of the part corresponding to the tablet 5 in the X-ray penetration image, the shadow 2c (refer to FIG. 12) and the part corresponding to the foreign matter appearing around the part, and is higher than that of X In the radiographic image, the brightness of the portion corresponding to the storage space 2a (excluding the outer edge of the bag portion 2 and the lozenge 5) and the flange portion 9b (e.g., equivalent to the storage space 2a and the flange portion 9b) The lowest brightness of the part of the brightness) is also a low value.

Furthermore, in the present embodiment, as the inspection area Kb, the area corresponding to the PTP sheet 1 in the PTP film 9 except for the area corresponding to the label portion 8 is set to correspond to the sheet body portion formed by the five thin pieces 6 Area 1a (refer to Figures 3 and 4).

The inspection program storage device 77 stores software for performing inspection processing. The software stored in the inspection program storage device 77 includes software 77a for area identification, software 77b for judgment of goodness or failure, software 77c for irradiation output detection, and software 77d for output control.

The area specifying software 77a includes: a program for specifying a predetermined inspection area (in this embodiment, the inspection area Kb) in the X-ray penetrating image according to the shape and size of the slice frame stored in the setting data memory device 76; and use The aforementioned threshold δ1 specifies the storage area 2x corresponding to the storage space 2a in the specified inspection area Kb, the flange portion area 9x corresponding to the flange portion 9b, and the lozenge area 5x corresponding to the lozenge 5, and lozenges 5, the foreign matter area 100x corresponding to the foreign matter such as powder, fragments, metal pieces, etc. (refer to Fig. 12 respectively) and other formulas. In this embodiment, the "tablet area 5x" corresponds to the "content area".

The good/fail judgment software 77b includes a program for detecting foreign matter (fragments or powder of the tablet 5, etc.) in the bag portion 2 or the flange portion 9b.

The irradiation output detection software 77c includes a program for calculating an irradiation output detection value representing the irradiation output of X-rays by the X-ray irradiation device 51 based on the X-ray penetration image.

The output control software 77d includes a program for controlling the X-ray irradiation output by the X-ray irradiation device 51 so that the irradiation output detection value becomes the aforementioned predetermined value K1.

When at least one X-ray transmission image of the PTP sheet 1 as a product is acquired by the X-ray sensor camera 52, the microcomputer 71 is used to execute the software for area identification 77a, software for quality judgment 77b, and radiation output detection Use software 77c and output control software 77d.

When an area specifying software 77a is executed, firstly, the inspection area Kb in the X-ray penetrating image is defined by setting the aforementioned sheet frame for the X-ray penetrating image. In addition, the X-ray transmission image corresponding to the inspection area Kb is acquired as the thin-sheet shade image Xb (refer to FIG. 12), and the thin-sheet shade image Xb is stored in the image data storage device 74.

In addition, as shown in FIG. 12, in the X-ray penetration image Xa or the thin shade image Xb (the shade image about the inspection area Kb), the area and the flange other than the lozenge area 5x and the aforementioned shadow 2c in the storage area 2x Although there is almost no difference in brightness between the regions 9x, the former is easier to be slightly brighter than the latter (the flange region 9x). That is because the part of the PTP film 9 where the housing space 2a is formed is stretched thinly to form the housing space 2a, and it is easier for X-rays to penetrate than the flange portion 9b.

In addition, in the X-ray transmission image Xa or the thin-tone image Xb, the tablet area 5x is in a darker state than the flange area 9x or the like. That is because X-rays are attenuated depending on the thickness of the tablet 5. In addition, in the X-ray penetration image Xa or the thin-shaded image Xa, according to the fragments or powder of the lozenge 5 in the foreign body area 100x, the brightness is approximately the same as or slightly brighter than the lozenge area 5x. On the other hand, depending on the foreign matter such as metal pieces in the foreign matter region 100x, it is in a darker state than the tablet region 5x. That's because foreign objects such as metal pieces are easier to shield X-rays than tablets 5.

When a thin slice image Xb is obtained, the threshold value δ1 is used to perform binarization processing on the thin slice image Xa. For example, if the aforementioned threshold value δ1 is greater than "1 (bright part)", and less than the aforementioned threshold value δ1 is "0 (dark part)", the thin-film shade image Xb is converted into a binary image, and the binary image is stored in the image data Memory device 74. In this embodiment, in the binary image, the portion corresponding to the tablet 5, the shadow 2c, or the foreign object is represented as "0 (dark part)".

Secondly, block processing is performed on the above-mentioned binarized image. As for the block processing, the processing of identifying the connected components for "0 (dark part)" and "1 (bright part)" of the binarized image is performed, and the labeling processing of labeling each connected component is performed. Here, the occupied area of each connected component that is respectively specified is represented by the number of points corresponding to the pixels of the X-ray line sensor camera 52.

Then, from the connected components of "0 (dark part)" specified by the block processing, the connected component equivalent to the tablet 5, that is, the tablet area 5x is specified. The connecting component corresponding to the tablet 5 can be specified by determining a connecting component containing a predetermined coordinate, a connecting component having a predetermined shape, or a connecting component at a predetermined area.

Next, from the connected components of "0 (dark part)" specified by the block processing, the ring-shaped dark shadow 2c located around the connected component equivalent to the tablet 5 and corresponding to the outer edge of the bag 2 is specified . The identification of the shadow 2c can be specified by, for example, determining the connected components corresponding to the tablet 5 and the connected components in a predetermined positional relationship. In addition, the outermost peripheral portion of the specified shadow 2c is specified as the outline of the storage space 2a.

Next, the inside of the contour of the containment space 2a in the X-ray penetration image (sheet shade image Xa) corresponding to the inspection area Kb is specified as the containment area 2x. In addition, the area other than the housing area 2x in the X-ray transmission image (sheet shade image Xa) corresponding to the inspection area Kb is specified as the flange area 9x.

Furthermore, the connected component after subtracting the lozenge area 5x and the shadow 2c from the connected component of "0 (dark part)" specified by the block processing is specified as the foreign object area 100x.

In this embodiment, the "microcomputer 71", the "setting data storage device 76" and the "inspection program storage device 77" of the memory area specifying software 77a constitute the "area specifying means" and the "foreign object specifying means". Area specifying section 78" (refer to FIG. 6).

In addition, in the present embodiment, as the threshold for specifying each region, only the threshold δ1 is used, but multiple types of thresholds may be used. In this embodiment, as described later, since the X-ray transmission image can be configured to have multiple levels of brightness gradation, it is possible to more accurately specify each region by using a plurality of types of thresholds. In addition, the threshold values of a plurality of types to be used may be individually changed in accordance with the detection value of the irradiation output described later.

Following the area specification software 77a, the quality judgment software 77b is executed. When the quality judgment software 77b is executed, in the containment area 2x, the foreign object area 100x whose area value is greater than the aforementioned minimum area value Lo is extracted (taking into account the influence of noise, the foreign object area 100x smaller than Lo is ignored). In addition, when there is a foreign matter region 100x greater than Lo, it is determined that foreign matter such as fragments, powder, or metal pieces of the tablet 5 is present in the bag portion 2. On the other hand, when there is no foreign matter region 100x greater than Lo, there is no foreign matter in the bag portion 2, and the tablet 5 is judged to be a good product. In addition, the determination of the presence or absence of foreign objects is performed for each of the storage areas 2x.

In addition, in the flange region 9x, the foreign body region 100x whose area value is equal to or greater than the aforementioned minimum area value Lo is extracted (the foreign body region 100x smaller than Lo is ignored). In addition, when there is a foreign body area 100x above Lo, it is determined that foreign matter such as fragments, powder, or metal pieces of the tablet 5 is present in the flange portion 9b. On the other hand, there is no foreign matter region 100x above Lo. In this case, it is determined that there is no foreign matter in the flange portion 9b.

In addition, in response to the quality determination of the tablet 5 and the flange portion 9b, the quality of the PTP sheet 1 corresponding to the inspection area Kb is determined, and the quality determination result is stored in the calculation result storage device 75 and the PTP packaging machine 10 (including defective Sheet discharge mechanism) output.

Furthermore, following the area specifying software 77a, the irradiation output detection software 77c is executed. The irradiation output detection software 77c is executed before or after the execution of the good/failure judgment software 77b, or may be at the same time as the execution of the good/failure judgment software 77b.

When the radiation output detection software 77c is executed, the area corresponding to the portion of the thin-shade image Xa that passes through the aforementioned path L1 of the PTP film 9 is specified. That is, the area on the path L1 in the X-ray penetration image is specified. This area specification can be performed, for example, by extracting a preset range of the X-ray penetration image. In addition, the "area located on the path L1 in the X-ray penetration image" may also be a straight line area (a one-dimensional area) on the path L1, or an area containing the area adjacent to the straight line. A flat area (a two-dimensional area) with a certain width.

Next, the storage area 2x contained in the specified area is specified, and the storage area 2x specifies the area other than the lozenge area 5x, the shadow 2c, and the foreign object area 100x from the storage area 2x. In other words, in the X-ray penetration image, the area other than the lozenge area 5x, the shadow 2c, and the foreign object area 100x in the containment area 2x located on the path L1 (hereinafter referred to as the "detection target area Ta") (Refer to Figure 12).

Then, based on the brightness in the detection target area Ta, an irradiation output detection value representing the irradiation output of X-rays is calculated. In this embodiment, the average value of the brightness of each pixel corresponding to the detection target area Ta is calculated as the detection value of the irradiation output. In addition, as the irradiation output detection value, the median value or the center of gravity value of the brightness of each pixel corresponding to the detection target area Ta may be calculated.

In this embodiment, the "irradiation output detection unit 79" as the "irradiation output detection means" is constituted by the "microcomputer 71" and the "inspection program storage device 77" that memorizes the irradiation output detection software 77c (refer to FIG. 6).

Furthermore, when the irradiation output detection value is calculated, the output control software 77d is executed. 1. When the output control software 77d is executed, according to the calculated irradiation output detection value, the irradiation output detection value calculated when the next irradiation output detection software 77c is executed becomes the aforementioned predetermined value K1 to adjust the X-ray irradiation The tube current of the device 51 (X-ray tube) controls the X-ray irradiation output by the X-ray irradiation device 51. In this embodiment, the brightness of the most easily brightened area in the X-ray penetration image (that is, the detection target area Ta) becomes the brightness close to the highest brightness that can be expressed in the X-ray penetration image (for example, the highest brightness 80 (~90% brightness) method, the X-ray irradiation output by the X-ray irradiation device 51 is controlled. In addition, the tube current to be input to the X-ray irradiation device 51, for example, can be based on the difference between the irradiation output detection value and the predetermined value K1 stored in advance in the setting data storage device 76 and the above-mentioned setting for imaging the detection target area Ta The relationship between the increase and decrease of the tube current required for such brightness is calculated by a mathematical formula or a table.

In this embodiment, the "microcomputer 71", the "setting data memory device 76" that stores the predetermined value K1, and the "inspection program memory device 77" of the memory output control software 77d constitute the "output control means". Control unit 80" (refer to FIG. 6).

Next, the manufacturing process of the PTP sheet 1 including the inspection process performed by the X-ray inspection device 45 will be described.

As shown in FIG. 8, first, in the bag forming process of step S1, the bag forming device 16 is used to sequentially form the bag 2 on the container film 3. Next, in the filling process of step S2, the tablet 5 is filled into the accommodation space 2a of the bag part 2 by the tablet filling device 21.

After the filling process, the installation process of step S3 is performed. In the installation process, the transported container film 3 and cover film 4 are fed between the aforementioned two rollers 20 and 23, so that the cover film 4 is installed on the container film 3 and the PTP film 9 can be obtained.

After that, regarding the process of the X-ray inspection device 45, the inspection process of step S4 is performed. The inspection process includes the irradiation process of step S41, the imaging process of step S42, the area specifying process of step S43, the quality judgment process of step S44, the irradiation output inspection process of step S46, and the output control process of step S47.

In the irradiation process of step S41, the PTP film 9 is irradiated with X-rays by driving and controlling the X-ray irradiation device 51 and the X-ray sensor camera 52 with the microcomputer 71. At this time, the irradiation output of X-rays by the X-ray irradiation device 51 is controlled based on the irradiation output detection value calculated in the irradiation output detection process of step S5 in the previous inspection process. As a result, the irradiation output of X-rays by the X-ray irradiation device 51 is controlled so that the irradiation output detection value calculated in the irradiation output detection process of step S5 becomes the predetermined value K1.

Then, in the imaging process of step S42, the X-ray sensor camera 52 acquires a predetermined amount every time the PTP film 9 is transported (in this embodiment, the aforementioned timing signal is input to the X-ray inspection device 45). A one-dimensional X-ray penetration image of X-rays penetrating the PTP film 9.

Furthermore, the X-ray penetration image obtained by the X-ray line sensor camera 52 is converted into a digital signal inside the camera 52 and output to the control processing device 53 (image data storage device 74) in the form of a digital signal. In this embodiment, each time the PTP film 9 is transported, the X-ray line sensor camera 52 obtains the width of the X-ray line sensor 52a in the transport direction of the PTP film 9, which is equivalent to a CCD width. X-ray penetrating image of the length and weight. Of course, a configuration different from this can also be adopted.

The X-ray penetrating images output from the X-ray line sensor camera 52 are sequentially memorized in the image data memory device 74 in a time sequence.

Then, the series of processes described above are repeated every time the PTP film 9 is transported for a predetermined amount. In the image data storage device 74, the X-ray transmission image for each PTP sheet 1 is finally stored. At this time, by controlling the irradiation output of X-rays by the X-ray irradiation device 51 as described above, the X-ray penetration image can have a multi-level brightness gradation. Then, when an X-ray penetration image of the PTP sheet 1 as a product is acquired, the area specifying process of step S43 and the quality determination process of step S44 are executed.

In addition, the area identification process, the quality judgment process, and the like are processing performed on each PTP sheet 1 that becomes a product. Therefore, in this embodiment, each PTP film 9 is transported in an amount equivalent to 1 PTP sheet 1, that is, the area identification process is performed on the portion of the PTP sheet 1 contained in the X-ray transmission image. Judgment works, etc.

Next, referring to the flowchart of FIG. 9, the area specifying process of step S43 will be described. In the area specifying process, first, the inspection image acquisition process of step S431 is executed. In detail, the image of the PTP sheet 1 that is the inspection target among the X-ray penetrating images is read out as an inspection image from the image data storage device 74.

Next, in step S432, by setting the sheet frame for the read-out inspection image, the inspection area Kb in the X-ray penetrating image is defined to obtain the thin-film shade image Xb. The obtained thin-tone image Xb is stored in the image data storage device 74.

In addition, in the present embodiment, the setting position of the sheet frame is determined in advance according to the relative positional relationship with the PTP film 9. Therefore, in this embodiment, the setting position of the sheet frame is not adjusted every time according to the inspection image, but it is not limited to this. It can also be used to consider the occurrence of positional deviation, etc., based on the X-ray penetration image. Information is suitable for adjusting the composition of the setting position of the sheet frame.

Furthermore, in the next step S433 of the lozenge area identification process, first, using the threshold value δ1, the obtained thin-and-light image Xb is binarized, and the binarized image obtained by this process is memorized In the image data storage device 74. After that, block processing is performed on the above-mentioned binary image, and the tablet area 5x, which is a connected component equivalent to the tablet 5, is specified from the connected components of "0 (dark part)" specified by the block processing.

Next, in step S434, the ring-shaped shadow 2c located around the specified lozenge area 5x is specified.

After that, in step S435, the X-ray penetration image (sheet shade image Xa) corresponding to the inspection area Kb, the area inside the outermost periphery of the shadow 2c is specified as the containment area 2x. In addition, in the next step S436, the area other than the storage area 2x in the sheet shading image Xb is specified as the flange area 9x.

Then, at the end of the area specifying process, the foreign object area specifying process of step S437 is performed. In step S437, the component after subtracting the lozenge area 5x and the shadow 2c from the connected component of "0 (dark part)" specified by the block processing is specified as the foreign object area 100x.

Next, the quality judgment process of step S44 will be described with reference to the flowchart of FIG. 10.

First, in step S441, the value of the tablet good product flags of all the bag parts 2 is set to "0". In addition, the "tablet good product flag" is used to indicate the result of the judgment of the goodness of the tablet 5 contained in the corresponding bag 2 and is set in the calculation result storage device 75. Then, when the tablet 5 contained in the predetermined bag portion 2 is judged to be a good product, the value of the corresponding tablet good product flag is set to "1".

In the next step S442, the value C of the bag number count set in the calculation result storage device 75 is set to "1" which is an initial value. In addition, "the value C of the bag number count" refers to the serial number set corresponding to each of the 10 bag parts 2 in the inspection area Kb of 1 PTP sheet 1, and the value C counted by the bag number (below , Just called "bag number C") The position of the bag 2 can be specified.

Then, in step S443, it is determined whether the bag number C is less than or equal to the number of bags N ("10" in this embodiment) per inspection area (per PTP sheet 1).

If it is judged to be YES in step S443, go to step S444, and extract the storage area 2x (bag part 2) corresponding to the current bag number C (for example, C=1) according to the processing result of the utilization area specifying process in step S43 Among them, the area value is the foreign object region 100x that is greater than or equal to the aforementioned minimum area value Lo. Then, in the next step S445, if there is a foreign object area 100x greater than Lo in the storage area 2x, it is determined that there is a foreign object such as a fragment of the lozenge 5 or a metal piece in the storage area 2x, and the process proceeds to step S447 as it is. On the other hand, if there is no foreign object area 100x greater than Lo in the storage area 2x, the process proceeds to step S446.

In step S446, it is determined that there is no foreign matter in the storage area 2x (bag portion 2) corresponding to the current bag number C, and the value of the tablet good product flag corresponding to the bag number C is set to "1". After that, it moves to step S447.

In step S447, a new bag number C is set by adding "1" to the current bag number C. After that, it returns to step S443.

Then, if the newly set bag number C is still less than the bag number N ("10" in this embodiment), the process proceeds to step S444 again, and the series of determination processes described above are repeatedly executed.

On the other hand, when it is determined that the newly set bag number C has exceeded the number of bags N, that is, if the determination in step S443 is negative, it is deemed that the quality determination related to all the bag portions 2 (containment area 2x) has ended, and the transition Go to step S448.

In step S448, based on the processing result of the utilization area identification process in step S43, the foreign body area 100x whose area value is equal to or greater than the aforementioned minimum area value Lo in the flange portion area 9x is extracted. Then, in the next step S449, if there is a foreign object area 100x greater than Lo in the flange area 9x, it is determined that there is a foreign object such as a fragment of the tablet 5 or a metal piece in the flange area 9x, and the process proceeds to step as it is S452. On the other hand, if there is no foreign object area larger than Lo in the flange area 9x, the process proceeds to step S450.

In step S450, it is determined whether the value of the tablet quality flag of all the bag portions 2 in the inspection area Kb is "1". In the case where it is judged as yes, that is, there is no foreign matter in all the pockets 2 in the inspection area Kb, in step S451, the PTP sheet 1 corresponding to the inspection area Kb is judged as "good", and the quality is judged The project is over.

On the other hand, in the case where step S450 is determined as No, that is, there is an abnormality in at least one of all the pockets 2 in the inspection area Kb, the process proceeds to step S452.

In step S452, the PTP sheet 1 corresponding to the inspection area Kb is determined as a "defective product", and the quality determination process ends.

In addition, in the good product determination processing of step S451 and the defective product determination processing of step S452, the inspection result related to the PTP sheet 1 corresponding to the inspection area Kb is stored in the calculation result storage device 75 and the PTP packaging machine 10 (including the defective sheet Discharge mechanism) output.

Next, the irradiation output detection process of step S46 will be described. As shown in FIG. 11, in the irradiation output detection process, first, in step S461, the area corresponding to the portion of the aforementioned path L1 of the PTP film 9 where the sum of the shaded image Xa of the sheet is specified. Next, in step S462, the area obtained by subtracting the lozenge area 5x, the shadow 2c, and the foreign object area 100x from the storage area 2x included in the specified area is specified as the detection target area Ta. After that, in step S463, the irradiation output detection value representing the irradiation output of X-rays is calculated based on the brightness in the detection target area Ta, and the irradiation output detection process ends.

Returning to FIG. 8, following the irradiation output detection process, the output control process of step S47 is performed. In the output control process, based on the irradiation output detection value calculated in the irradiation output detection process, the irradiation output detection value calculated in the next irradiation output detection process becomes the aforementioned predetermined value K1, and the X-ray irradiation device 51 is controlled. X-ray irradiation output.

Next, in the saddle stitch forming process of step S5, the saddle stitch 7 is formed at a predetermined position of the PTP film 9 by the saddle stitch forming device 33. Moreover, in the engraving process of the next step S6, the engraving 8a is set on the PTP film 9 by the engraving device 34. After that, by performing the cutting process of step S7, the manufacturing process of the PTP sheet 1 ends. In the cutting process, the PTP sheet 1 is manufactured by punching the PTP film 9 with the sheet punching device 37 and cutting the PTP sheet 1 from the PTP film 9.

As described in detail above, according to the present embodiment, the radiation output detection value is calculated based on the brightness of the area that is most likely to be brightened in the X-ray penetration image, that is, the detection target area Ta. Then, the X-ray irradiation device 51 is controlled so that the detection value of the irradiation output of the area that is most likely to be brightened becomes the predetermined value K1, that is, such that the area that is most likely to be brightened sufficiently becomes high brightness. Therefore, the highest value can be set high enough in the effective gradation range (the range of detection output by the X-ray sensor 52a), which is relative to the measurable gradation range (using the X-ray sensor 52a). The maximum range of detection output) can set the effective tone range wider. Thereby, the resolution of the gradation of the detection output and even the luminance gradation in the X-ray penetration image can be improved, and higher-precision inspection can be performed.

Particularly in this embodiment, the radiation output detection value is calculated based on the brightness of the most easily brightened area in the X-ray penetration image, such as the area other than the lozenge area 5x and the shadow 2c in the storage area 2x. Therefore, the effective tone range can be set more appropriately.

In addition, since the detection target area Ta does not include the shadow 2c, a more appropriate detection value of the irradiation output can be obtained.

Furthermore, the ring-shaped shadow 2c located around the specified lozenge area 5x is specified as the outline of the storage space 2a, and the inner side of the outline is specified as the storage area 2x. Therefore, the position of the storage area 2x can be specified more accurately and easily. As a result, it is possible to calculate a more appropriate radiation output detection value.

In addition, the radiation output detection value is calculated based on the brightness of the area other than the foreign object area 100x. Therefore, it is possible to calculate a more appropriate radiation output detection value without being affected by foreign objects.

In addition, it is not limited to the description content of the above-mentioned embodiment, for example, it can also be implemented as follows. Of course, other application examples and modification examples not illustrated below may be used.

(a) In the above-mentioned embodiment, the detection target area Ta is an area located on the path L1 and is an area obtained by subtracting the lozenge area 5x, the shadow 2c, and the foreign object area 100x from the storage area 2x. In contrast, as shown in FIG. 13, the detection target area Ta may be a flange area 9x located on the path L1. Even in this case, the radiation output detection value can be calculated based on the brightness of one of the areas that are most likely to be brightened in the X-ray penetration image (sheet shading image Xb). In addition, since the flange area 9x is wider than the storage area 2x except for the lozenge area 5x, the irradiation output detection value is calculated based on the brightness of the flange area 9x, and the irradiation output can be improved. Ease of calculation of detection value.

In addition, in consideration of adverse effects caused by foreign objects, the detection target area Ta may be an area located on the path L1, and the foreign object area 100x may be subtracted from the flange area 9x.

Moreover, each of the region after subtracting the lozenge region 5x from the storage region 2x and the flange region 9x may be used as the detection target region Ta. In this case as well, in terms of calculating the detection value of the irradiation output more accurately, it is better to set the detection target area Ta so as not to include the shadow 2c and the foreign object area 100x.

(b) The packaging sheet is not limited to the PTP sheet 1 of the above-mentioned embodiment, and may be, for example, an SP sheet.

As shown in Fig. 14, a general SP sheet 90 is formed by overlapping two strip-shaped films 91, 92 made of an opaque material with aluminum as the base material, and an ingot is filled between the two films 91, 92 on one side. The two films 91 and 92 around the storage space 93 (shading pattern part in FIG. 14) are joined to form a tape-shaped packaging film by joining the two films 91 and 92 around the storage space 93 while leaving a bag-shaped storage space 93 around the tablet 5 on the side. Then, it is formed by cutting the packaging film into rectangular slices.

In addition, in the SP sheet 90, in terms of the "cut-off portion" that can be cut in units of the thin small sheet 94 including one storage space 93, it is also possible to form a longitudinal stitch 95 formed along the long side of the sheet. And a cross stitch 96 formed along the short side of the sheet. In addition, the SP sheet 90 may be provided with a label portion 97 on which various information ("ABC" in this embodiment) is printed at one end in the longitudinal direction of the sheet. .

(c) In the above-mentioned embodiment, the X-ray inspection device 45 is provided downstream of the film receiving roller 20 and the heating roller 23 and upstream of the stitch forming device 33 and the marking device 34. On the other hand, as shown in FIG. 15, the X-ray inspection device 45 can also be set downstream of the stitch forming device 33 and the marking device 34 and upstream of the sheet punching device 37.

In this case, as shown in Fig. 16, in the X-ray penetration image Xa and the thin-slice image Xb, there is a saddle stitch area 7x corresponding to the saddle stitch 7 as a "cut-off area", and an engraving corresponding to the engraving 8a exists. The state of the area 8x, but it is better to calculate the radiation output detection value based on the brightness of the area other than the stitching area 7x or the marking area 8x based on the configuration. With such a configuration, it is possible to calculate a more appropriate radiation output detection value without being affected by the stitching 7 or the marking 8a. As a result, inspections with higher accuracy can be performed more stably.

In addition, by installing the X-ray inspection device 45 upstream of the sewing thread forming device 33 and the marking device 34, as a result, the radiation output detection value is calculated based on the brightness of areas other than the sewing thread area 7x and the marking area 8x. Therefore, regarding the above-mentioned embodiment, it can be said that the irradiation output detection value is calculated based on the brightness of the area other than the stitching area 7x and the marking area 8x.

(d) In the above embodiment, although it is configured that the specific X-ray penetrates the lozenge area 5x in the image, and the ring-shaped shadow 2c located around the specified lozenge area 5x is specified as the outline of the storage space 2a , The inner side of the contour is specified as the containment area 2x, but other methods can also be used to specify the containment area 2x.

For example, it may be comprised so that the lozenge area|region 5x may be specified, and the area|region formed by swelling the specified lozenge area|region 5x may be specified as the storage area 2x. In this case, with a relatively simple process, the containment area 2x can be accurately specified (estimated) to a certain extent.

In addition, it can also be configured to specify the lozenge area 5x, and obtain the center or center of gravity of the specified lozenge area 5x, and specify the storage area based on design data related to the obtained center or center of gravity and the location of the containment space 2a 2x. In this case, too, with a relatively simple process, the containment area 2x can be accurately specified (presumed) to a certain extent.

Furthermore, it can also be configured to take a picture of the PTP film 9, obtain an appearance image about the appearance of the PTP film 9, and specify the position of the storage space 2a in the appearance image, and then specify the storage according to the position of the specified storage space 2a Area 2x. In this case, since the storage area 2x is specified based on the actual position of the storage space 2a, the storage area 2x can be specified extremely accurately, and excellent inspection accuracy can be achieved.

(e) The arrangement or number of pockets 2 of 1 unit of PTP sheet is not limited by the aspect (2 rows, 10) of the above embodiment. For example, it can be used to have 3 rows of 12 pockets 2 (accommodating space). 2a) PTP sheets composed of various arrangements and numbers (the same applies to the above-mentioned SP sheets). Of course, the number of pockets 2 (accommodating spaces 2a) included in one small piece is not limited in any way by the above-mentioned embodiment.

(f) In the PTP sheet 1 of the above-mentioned embodiment, as the "cut-off part", a saddle stitch 7 formed by intermittently arranging cuts penetrating the thickness direction of the PTP sheet 1 is formed, but the "cut-off part" is not affected by this However, it is also possible to adopt different configurations according to the material of the container film 3 and the cover film 4 and so on. For example, a non-penetrating slit (half-cut line) having a substantially V-shaped cross-section may constitute a "cut-off part". In addition, it is also possible to form a structure in which the "cut-off portion" such as the stitching thread 7 is not formed.

(g) The material and layer structure of the first film and the second film are not limited to the structure of the container film 3 or the cover film 4 of the above-mentioned embodiment. For example, in the above-mentioned embodiment, the container film 3 and the cover film 4 are formed with a metal material such as aluminum as a base material, but it is not limited to this, and other materials may be used. For example, a synthetic resin material that does not allow visible light to pass through, etc. may also be used.

(h) The configuration of the tape-shaped package is not limited to the above-mentioned embodiment, and other configurations may be adopted.

In the above-mentioned embodiment, although the PTP film 9 has a configuration in which the number of pockets 2 corresponding to one sheet is arranged along its width direction, it is not limited to this. For example, it may be arranged along its width direction with and plural The structure of the pocket portion 2 corresponding to the number of sheets.

(i) The configuration of the electromagnetic wave irradiation means is not limited to the above-mentioned embodiment. In the above-mentioned embodiment, the structure is used to irradiate X-rays which are electromagnetic waves. However, it is not limited to this, and other electromagnetic waves that penetrate the PTP film 9 such as megahertz electromagnetic waves may be used.

(j) The configuration of the imaging means is not limited to the above-mentioned embodiment. For example, in the above-mentioned embodiment, the X-ray line sensor camera 52 with one row of CCDs is used as the imaging means. However, it is not limited to this. For example, a plurality of rows of CCD rows in the film transport direction of the PTP film 9 may be used. (Detection element row) X-ray TDI (Time Delay Integration) camera. In this way, it is possible to further improve the inspection accuracy and inspection efficiency.

(k) The configuration of the X-ray inspection device 45 or the positional relationship between the X-ray inspection device 45 and the PTP film 9 is not limited to the above-mentioned embodiment.

For example, in the above embodiment, although the X-ray inspection device 45 is arranged at the position where the PTP film 9 is conveyed in the vertical direction, it is not limited to this. For example, the PTP film 9 may be conveyed in the horizontal direction. The X-ray inspection device 45 is arranged in the position or the position where it is conveyed in an oblique direction.

In addition, it may also be configured to include a position adjustment mechanism (position adjustment means) to allow the X-ray irradiation device 51 and the X-ray sensor camera 52 to be transported along the PTP film 9 in accordance with the size and arrangement of the PTP film 9 The direction, the width direction of the PTP film 9 and the contact/separation direction of the PTP film 9 are moved.

Furthermore, in the above embodiment, although the X-ray irradiation device 51 is arranged on the container film 3 side of the PTP film 9, and the X-ray sensor camera 52 is arranged on the cover film 4 side of the PTP film 9, it may be The positions of the two are reversed, and the X-ray irradiation device 51 is arranged on the side of the cover film 4 and the X-ray sensor camera 52 is arranged on the side of the container film 3. At this time, the "container film 3" constitutes the "second film", and the "cover film 4" constitutes the "first film".

(l) In the above-mentioned embodiment, although the X-ray inspection is performed by the X-ray inspection device 45 in the previous process before punching the PTP sheet 1 from the PTP film 9, it is not limited to this, and may be constructed as In the post process after the PTP sheet 1 is punched from the PTP film 9, the PTP sheet 1 is inspected. For example, it may be configured to inspect the PTP sheet 1 conveyed by the conveyor 39. In this case, "PTP sheet 1" constitutes a "package", and "sheet flange portion 1b" constitutes a "flange portion".

In this case, the X-ray inspection device 45 may be installed in the PTP packaging machine 10 (online configuration), or the X-ray inspection device 45 and the PTP packaging machine 10 may be installed separately (offline configuration). . Among them, in the case of offline configuration, because the position and orientation of the PTP sheet 1 to be inspected may not be fixed relative to the X-ray inspection device 45, it is necessary to adjust the position and orientation of the PTP sheet 1 in advance during inspection. . In addition, since the adjustment of the position and orientation of the PTP sheet 1 may cause a decrease in inspection speed and inspection accuracy, after considering this point, it is better to adopt an online configuration.

(m) In the above embodiment, although the configuration is such that the flange portion 9b and the housing space 2a alternately pass through the path L1 along with the transportation of the PTP film 9, it may be configured such that when the PTP film 9 is transported, the housing space 2a is not Go through path L1. That is, when the PTP film 9 is transported, the flange portion 9b may always pass through the path L1. In this case, the radiation output detection value is calculated based on the brightness of the flange region 9x located on the path L1.

(n) In the above-mentioned embodiment, although the tablet 5 is mentioned as the content, the content is not limited to this, and may be, for example, capsules, foodstuffs, small parts, and the like.

1: PTP sheet 2: Bag Department 2a: containment space 2c: Shadow 2x: Containment area 3: Container film (the first film) 4: Cover film (2nd film) 5: lozenge (contents) 5x: lozenge area 7: ride stitching (cut off part) 7x: riding stitch area (cut-off area) 8a: engraving 8x: marking area 9: PTP film (package body) 9b: Flange 9x: Flange area 10: PTP packaging machine (package manufacturing device) 45: X-ray inspection device (inspection device) 51: X-ray irradiation device (electromagnetic wave irradiation means) 51a: Irradiation source 52: X-ray line sensor camera (photographing means) 52a: X-ray line sensor (detection department) 53: Control processing device (image processing device) 78: Area specific department (area specific means, foreign body specific means) 79: Irradiation output detection section (irradiation output detection means) 80: Output control section (output control means) 100x: Foreign body area Ka: Thin slice punching range Kb: Inspection area Ta: Detection target area

Figure 1 is a perspective view of a PTP sheet. Figure 2 is a partial enlarged cross-sectional view of the PTP sheet. Fig. 3 is a schematic diagram showing the PTP film and inspection area. Fig. 4 is a schematic diagram showing the PTP film and marking area. Figure 5 is a schematic configuration diagram of the PTP packaging machine. Fig. 6 is a block diagram showing the electrical configuration of the X-ray inspection device. Fig. 7 is a schematic diagram showing a schematic configuration of an X-ray inspection apparatus. Figure 8 shows the flow chart of the manufacturing process. Figure 9 is a flow chart showing the area-specific project. Figure 10 shows a flow chart of the good or bad judgment process. Figure 11 shows the flow chart of the irradiation output inspection project. Fig. 12 is a schematic diagram showing the detection target area in the X-ray penetrating image. FIG. 13 is a schematic diagram showing the detection target area and the like in the X-ray penetration image in another embodiment. Fig. 14 is a plan view showing the SP sheet. Fig. 15 is a diagram for showing the arrangement position of the X-ray inspection apparatus in another embodiment. Fig. 16 is a schematic diagram showing the stitching area in the X-ray penetrating image in another embodiment. Fig. 17 is a graph succinctly showing the relationship between tube current and irradiation output in the X-ray generator. FIG. 18 is a graph succinctly showing the relationship between the detection output and the irradiation output by the X-ray detector. Figure 19 is a diagram for explaining the measurable gradation range and the effective gradation range.

2c: Shadow

2x: Containment area

5x: lozenge area

9x: Flange area

100x: Foreign body area

Ka: Thin slice punching range

Kb: Inspection area

Ta: Detection target area

Claims (7)

An inspection device is an inspection device for inspecting packaging. The packaging system is equipped with a first film made of opaque material and a second film made of opaque material, and is located in the containing space formed between the two films The contents are contained, and the characteristics of the inspection device are: The electromagnetic wave irradiation means is formed by irradiating the package body with an irradiation source of electromagnetic waves that can penetrate the package body from the side of the first film; The imaging means has a detection unit that is arranged on the second film side so as to interpose the packaging body and the electromagnetic wave irradiation means facing each other and can detect the electromagnetic waves penetrating the packaging body. The detection output of the detection section of electromagnetic waves, to obtain the electromagnetic wave penetration image with the intensity of the brightness; Image processing means, based on the electromagnetic wave penetration image obtained by the aforementioned shooting means, the inspection of the aforementioned package can be performed; The radiation output detection means calculates the radiation output detection value representing the radiation output of the electromagnetic wave by the electromagnetic wave radiation means based on the aforementioned electromagnetic wave penetration image; and The output control means controls the irradiation output of electromagnetic waves by the electromagnetic wave irradiation means so that the detection value of the irradiation output becomes a predetermined value, And the structure is that: the aforementioned radiation output detection means is based on the aforementioned electromagnetic wave penetration image, which is located on the path connecting the aforementioned radiation source and the aforementioned detection unit at the shortest distance, in addition to the aforementioned content in the storage area corresponding to the aforementioned storage space The brightness of at least one of the area other than the corresponding content area and the flange portion area corresponding to the flange portion around the storage space is calculated to calculate the irradiation output detection value. Such as the inspection device of claim 1, which is composed of: The aforementioned radiation output detection means is based on the aforementioned electromagnetic wave penetration image except for the cut-off area corresponding to the cut-off portion provided on the package body and the engraved area corresponding to the marking attached to the package body. Calculate the aforementioned irradiance output detection value. Such as the inspection device of claim 1, wherein at least one of the first film and the second film is a bag having an inner space to form the storage space, and is composed of a metal film or a film with a metal layer, It has an area specifying means that specifies the electromagnetic wave penetrating the aforementioned content area in the image, and specifies the ring-shaped shadow around the specified content area as the outline of the aforementioned containment space. The inside of the outline is designated as the aforementioned containment area, And the structure is that the aforementioned radiation output detection means is calculated based on the brightness of the aforementioned electromagnetic wave penetration image except for the aforementioned content area specified by the aforementioned area-specific means in the aforementioned containment area specified by the aforementioned area-specific means The aforementioned irradiation output detection value. Such as the inspection device of claim 2, where At least one of the first film and the second film is a bag having an internal space to form the storage space, and is composed of a metal film or a film having a metal layer, It has an area specifying means that specifies the electromagnetic wave penetrating the aforementioned content area in the image, and specifies the ring-shaped shadow around the specified content area as the outline of the aforementioned containment space. The inside of the outline is designated as the aforementioned containment area, And the structure is that: the aforementioned radiation output detection means is calculated based on the brightness of the aforementioned electromagnetic wave penetration image except for the aforementioned content area specified by the aforementioned area-specific means in the aforementioned containment area specified by the aforementioned area-specific means The aforementioned irradiation output detection value. For example, the inspection device of any one of claims 1 to 4, which has a foreign body specific means, and the foreign body specific means specifies the foreign body area corresponding to the foreign body in the aforementioned electromagnetic wave penetration image, And it is configured that the aforementioned radiation output detection means calculates the aforementioned radiation output detection value based on the brightness of the area other than the aforementioned foreign object area in the aforementioned electromagnetic wave penetration image. A packaging body manufacturing device characterized by including an inspection device as claimed in claim 1. A packaging body manufacturing method is a packaging body manufacturing method used when a packaging body is obtained. The packaging system is equipped with a first film made of opaque material and a second film made of opaque material, and Contents are contained in the containing space formed between the two films, and the packaging body manufacturing method is characterized by: Installation project, install the belt-shaped first film and the belt-shaped second film to be transported; The filling process is to fill the contents in the storage space formed between the first film and the second film; and The inspection project is to perform the inspection of the aforementioned packaging body obtained through the aforementioned installation project and the aforementioned filling project, The aforementioned inspection project includes: In the irradiation process, the package body is irradiated with electromagnetic waves that can penetrate the package body from the side of the first film by the irradiation source of the established electromagnetic wave irradiation means; In the photographing process, a photographing means with a detection unit is used. Based on the detection output from the detection unit that uses the electromagnetic wave penetrating the packaging body, an electromagnetic wave penetration image with the intensity of the brightness is obtained, and the detection unit is separated by Arranged on the side of the second film in such a way that the packaging body and the electromagnetic wave irradiation means are opposed to each other and can detect electromagnetic waves penetrating the packaging body; The good or bad judgment project, based on the electromagnetic wave penetration image obtained by the aforementioned shooting project, is used to judge the goodness of the aforementioned package; The radiation output detection project, based on the aforementioned electromagnetic wave penetration image, calculates the radiation output detection value representing the radiation output of the electromagnetic wave by the aforementioned electromagnetic wave radiation means; and The output control process controls the irradiation output of electromagnetic waves by the electromagnetic wave irradiation means in such a way that the detection value of the irradiation output becomes a predetermined value, In the aforementioned radiation output detection process, based on the aforementioned electromagnetic wave penetration image, which is located on the path connecting the aforementioned radiation source and the aforementioned detection unit at the shortest distance, in the storage area corresponding to the aforementioned storage space except for the content corresponding to the aforementioned contents The brightness of at least one of the area other than the object area and the flange portion area corresponding to the flange portion around the storage space is calculated, and the aforementioned irradiation output detection value is calculated.

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