JP7446392B1 - Manufacturing equipment status confirmation system - Google Patents

Abstract

An object of the present invention is to provide a status confirmation system for manufacturing equipment that can more reliably and more easily obtain video data necessary for understanding the cause of a malfunction. A confirmation system 50 determines the quality of cameras R1 to R6 that obtain video data consisting of a plurality of still frame image data stored in chronological order, and at least one of the workpiece itself and processing for the workpiece. and a target data storage unit 67 that extracts and stores predetermined target data from video data, triggered by a defective determination by the testers C1 to C4. The target data storage unit 67 stores video data in a predetermined range at a position that is traced back by the number of retroactive frames corresponding to the transport amount of the workpiece, based on the still frame image data when the trigger occurs. , extract and save as target data. [Selection diagram] Figure 11

Description

TECHNICAL FIELD The present invention relates to a system for confirming the occurrence status of a manufacturing defect when it occurs in a manufacturing apparatus that performs various processes on transported workpieces.

Some manufacturing devices manufacture various products by repeatedly performing various processes on workpieces that are transported without changing the order. An example of such manufacturing equipment is a blister packaging machine that sequentially manufactures blister sheets as products by repeatedly performing various treatments on the container film while conveying the container film as a workpiece. . The various processes include, for example, a process of forming a pocket in the container film, a process of storing contents such as a tablet in the pocket, a process of attaching a cover film to the container film, and the like.

By the way, during the manufacturing of a product, problems may occur in the work itself or in the processing of the work. For example, in a blister packaging machine, the container film before processing may have holes or dirt, the pocket may be poorly formed, the contents may not be properly accommodated in the pocket, or the cover film may not be properly placed on the container film. may become insufficiently attached. When such a problem occurs, it is necessary to take appropriate measures to prevent the same type of problem from occurring again.

Therefore, it is equipped with an imaging means (such as a camera) that takes an image of the workpiece, etc., and a determination means that makes a quality judgment based on the image data obtained by the imaging means. It has been proposed to provide an inspection device that performs the judgment and stores the image data used for the pass/fail judgment in association with the pass/fail judgment result (see, for example, Patent Document 1). According to this inspection device, it becomes possible to grasp the inspection status and to take appropriate measures when the inspection status is not appropriate.

In addition, there is a photographing means for capturing video data by photographing the workpiece itself and the execution status of processing on the workpiece, a memory for storing the obtained video data, and output from an inspection device (detection device) installed on the workpiece conveyance path. It has also been proposed to provide a process monitoring device equipped with an external input means for inputting the generated signal as a trigger signal (see, for example, Patent Document 2). In this device, when a defect related to the workpiece is detected by the inspection device and a trigger signal is input, the system uses video data stored in the memory that goes back more than a set time from the time the trigger signal was input. The data is saved as video data that cannot be overwritten. Therefore, if a problem occurs with the work itself or the processing on the work, it is considered possible to take appropriate measures by using non-overwritable video data.

JP2006-214814A Japanese Patent Application Publication No. 2016-122319

However, with each of the devices described in Patent Documents 1 and 2, there is a risk that it may not be possible to take sufficient appropriate measures to prevent the occurrence of defects, or that it may be difficult to take appropriate measures.

First, the inspection device described in Patent Document 1 merely stores image data used for quality determination. Therefore, although it is possible to confirm that a problem has occurred, it may not be possible to understand the cause or timing of the problem. For example, assume that the manufacturing device is a blister packaging machine, and a problem occurs in which the contents are not accommodated in the pockets. In this case, although it is possible to confirm the occurrence of the problem from the image data, it may not be possible to know at what point in the process the problem of no contents being stored in the pocket occurred. Therefore, it is not possible to understand the cause or timing of the occurrence of the malfunction, and there is a possibility that appropriate measures cannot be taken to prevent the occurrence of the malfunction.

Furthermore, in the device described in Patent Document 2, what is saved as non-overwritable video data is video data that goes back more than a set time from the time when the trigger signal was input. Therefore, the non-overwritable video data may include not only the video data necessary to understand the cause of the problem, but also a lot of video data unrelated to the problem. Therefore, it becomes extremely difficult to find necessary video data, and it may become difficult to take appropriate measures to prevent the occurrence of defects.

For example, the manufacturing equipment is a blister packaging machine, the distance from the imaging means to the inspection equipment is relatively long, and the filling speed of the contents into the pockets is very high (for example, 6000 pieces/min). Suppose that In this case, it is necessary to make the non-overwritable video data relatively long in accordance with the distance from the imaging means to the inspection device, but since the filling speed is extremely high, the entire non-overwritable video data On the other hand, only a small portion of the video data is required. Therefore, it is extremely difficult to search for necessary video data.

Furthermore, video data that cannot be overwritten is specified based on time (set time), so if there is a change in the transport speed of the workpiece, necessary video data may be included in the video data that cannot be overwritten. There may be a situation where it is not included. When such a situation occurs, it becomes impossible to take appropriate measures to prevent the occurrence of defects.

The present invention has been made in view of the above circumstances, and its purpose is to check the status of manufacturing equipment so that video data necessary for understanding the causes of defects can be obtained more reliably and more easily. The goal is to provide a system.

In the following, each means suitable for solving the above object will be explained in terms of sections. Note that effects specific to the corresponding means will be added as necessary.

Means 1. This is a status confirmation system for manufacturing equipment that is used in manufacturing equipment that repeatedly performs the same process on workpieces that are transported without changing the order along the transport direction, and is used to check the occurrence of manufacturing defects using videos. hand,
a moving image capturing means for obtaining moving image data related to the work itself or processing on the work, which consists of a plurality of still frame image data arranged along a conveyance path of the work and stored in chronological order;
Inspection means for determining the quality of at least one of the workpiece itself and the processing for the workpiece;
target data storage means for extracting and storing predetermined target data from the video data, triggered by the determination of the defect by the inspection means;
The target data storage means uses the still frame image data of the moving image data at the time when the trigger occurs as a reference, and stores the work from the moving image capturing means to the inspecting means related to the defect determination by the inspecting means. configured to extract and save as the target data data in a predetermined range located at a position as far back as the number of retroactive frames corresponding to the amount of transport ;
At least a master encoder capable of generating a reference rotation speed and phase for transporting the workpiece,
The video shooting means is configured to start shooting the video data when the master encoder is activated, and to end shooting the video data when the master encoder stops;
A system for checking the status of a manufacturing device , comprising retroactive frame number deriving means capable of deriving the retroactive frame number based on the rotation speed and phase generated by the master encoder .

According to the above means 1, the target data storage means extracts and stores predetermined target data from the moving image data obtained by the moving image photographing means. In extracting this target data, the still frame image data of the video data when the trigger occurs (when it is determined to be defective) is used as a reference, and from the video capturing means related to the defective determination by the inspection means to the inspection means. Data in a predetermined range located at a position that is traced back by the number of retroactive frames corresponding to the amount of workpiece conveyance is extracted as target data.

That is, according to the above-mentioned means 1, target data is extracted from the video data based on the conveyance amount of the workpiece instead of the time. Therefore, it is possible to pinpoint the video data necessary for understanding the cause and timing of occurrence of a problem as target data from the video data, and to obtain the necessary video data more reliably and more easily. Can be done. In addition, since the target data is extracted based on the amount of workpiece conveyance, even if there is a fluctuation in the workpiece conveyance speed, the video data necessary to understand the cause of the problem can be more reliably obtained. can be obtained.

Further, according to the above-mentioned means 1 , there is provided a master encoder capable of generating at least the rotation speed and phase that serve as a reference for transporting the workpiece. Further, the video capturing means starts capturing video data when the master encoder is activated, and ends capturing video data when the master encoder stops. Therefore, a plurality of still frame image data constituting the moving image data are associated with the rotation speed and phase of the master encoder.

The retrospective frame number deriving means derives the retrospective frame number based on the rotation speed and phase generated by the master encoder. Therefore, as described above, in the video data, multiple still frame image data and the rotation speed and phase of the master encoder are associated with each other, and the number of retroactive frames that match this video data can be determined more accurately. can be derived. As a result, it is possible to more reliably obtain, as target data, video data necessary for understanding the cause of a malfunction.

Means 2 . The moving image data obtained by the moving image capturing means is stored in a predetermined ring buffer in a format in which a real time time code indicating the time when the still frame image data is obtained is attached to each of the still frame image data. has been
Converting the rotation speed and phase generated by the master encoder into the real time time code using a conversion table showing the correspondence between the rotation speed and phase generated by the master encoder and the real time time code. has a conversion means to
The target data storage means converts the rotation speed and phase generated by the master encoder into the real time time code by the conversion means, and stores the real time time code in the ring buffer using the real time time code. The system for checking the status of a manufacturing apparatus according to means 1 , characterized in that the system is configured to extract and save the target data from the video data that has been processed.

According to the above means 2 , the moving image data is stored in the ring buffer. Therefore, the memory area for storing video data can be saved. Additionally, since video data contains information about the time when the still frame image data was obtained, it is possible to confirm when the problem occurred and at what speed the event that caused the problem occurred. can. Therefore, it is possible to take more appropriate measures to prevent the occurrence of defects.

Moreover, according to the above means 2 , by using the converting means, the rotation speed and phase generated by the master encoder can be converted into a real time time code. Then, using this real time time code, target data can be extracted from the video data. Therefore, as the target data, it is possible to more reliably obtain the video data necessary to understand the cause of the occurrence of the malfunction.

Means 3 . The moving image data obtained by the moving image capturing means includes, for each still frame image data, a mechanical time code indicating the rotation speed and phase generated by the master encoder when the still frame image data was obtained. It is saved in the specified ring buffer in the format with
The target data storage means is configured to extract and store the target data from the video data stored in the ring buffer using the mechanical time code. A status confirmation system for manufacturing equipment according to means 1 .

According to the above means 3 , since the video data is stored in the ring buffer, the memory area for storing the video data can be saved.

Moreover, according to the above means 3 , target data can be extracted from video data without using a conversion means. Therefore, it is possible to reduce the processing load associated with extraction of target data.
Means 4. A plurality of the video shooting means are provided along the conveyance direction of the workpiece,
The inspection means includes one for determining pass/fail for a plurality of inspection items,
Using a specific table showing a correspondence relationship between the inspection item and the video capturing means related to the inspection item, one of the plurality of video capturing means related to the inspection item determined to be defective is specified. It has a photographing means identification means,
The target data storage means is configured to extract and store the target data from among the video data obtained by the video shooting means specified by the video shooting means specifying means. A status confirmation system for manufacturing equipment according to any one of means 1 to 3.

Means 5. This is a manufacturing equipment status confirmation system used in manufacturing equipment that repeatedly performs the same process on workpieces that are transported without changing the order along the transport direction, and is used to check the occurrence of manufacturing defects using videos. hand,
a moving image capturing means for obtaining moving image data relating to the work itself or processing on the work, which consists of a plurality of still frame image data arranged along a conveyance path of the work and stored in chronological order;
Inspection means for determining the quality of at least one of the workpiece itself and the processing for the workpiece;
target data storage means for extracting and storing predetermined target data from the video data, triggered by a defective determination by the inspection means;
The target data storage means uses the still frame image data of the moving image data at the time when the trigger occurs as a reference, and stores the work from the moving image capturing means to the inspecting means related to the defect determination by the inspecting means. configured to extract and save as the target data data in a predetermined range located at a position as far back as the number of retroactive frames corresponding to the transport amount;
A plurality of the video shooting means are provided along the conveyance direction of the workpiece,
The inspection means includes one for determining pass/fail for a plurality of inspection items,
Using a specific table showing a correspondence relationship between the inspection item and the video capturing means related to the inspection item, one of the plurality of video capturing means related to the inspection item determined to be defective is specified. It has a photographing means identification means,
The target data storage means is configured to extract and save the target data from the video data obtained by the video capture means specified by the capture means identification means. A system for checking the status of manufacturing equipment.

According to the above-mentioned means 4 and 5, when a certain inspection item is determined to be defective by the imaging means specifying means, one or more moving image capturing means related to the inspection item can be specified. Then, the target data storage means extracts and stores the target data from among the one or more moving image data obtained by the specified one or more moving image capturing means. Therefore, target data can be extracted more easily.

Furthermore, when a plurality of moving image capturing means are involved in one inspection item, a plurality of target data can be obtained from a plurality of moving image data obtained by these moving image capturing means. Therefore, it becomes possible to more easily and accurately understand the cause of the malfunction.

It is a perspective view showing a PTP sheet. It is a partially enlarged sectional view of a PTP sheet. It is a perspective view showing a PTP film. FIG. 1 is a schematic diagram showing a schematic configuration of a PTP packaging machine and the like. FIG. 2 is a block diagram showing a schematic configuration of a confirmation system and the like. FIG. 2 is a block diagram showing various devices that operate based on the rotation speed and phase generated by a master encoder. It is a graph showing the relationship between the rotation speed and phase generated by the master encoder and time. FIG. 3 is an explanatory diagram for explaining the relationship between the phase in the master encoder and the phase in the first encoder. FIG. 3 is an explanatory diagram for explaining the relationship between the phase in a master encoder and the phase in a second encoder. FIG. 7 is an explanatory diagram for explaining the relationship between the phase in the master encoder and the phases in the third and fourth encoders. FIG. 2 is a block diagram showing a schematic configuration of a control device and the like. FIG. 3 is an explanatory diagram for explaining saved video data. It is an explanatory diagram for explaining a specific table. FIG. 3 is an explanatory diagram for explaining a conversion table and the like. It is an explanatory view for explaining the conveyance amount of the container film from the second camera to the first inspection device. It is a graph which shows an example of a retrospective frame number derivation formula concerning a first inspection device and a second camera. It is an explanatory view for explaining the conveyance amount of a container film from a fourth camera to a second inspection device. It is a graph which shows an example of a retroactive frame number derivation formula concerning a second inspection device and a fourth camera. FIG. 7 is an explanatory diagram for explaining saved video data in another embodiment.

An embodiment will be described below with reference to the drawings. First, the structure of a PTP sheet as a "product" will be explained. As shown in FIGS. 1 and 2, the PTP sheet 1 includes a container film 3 having a plurality of pockets 2, and a cover film 4 attached to the container film 3 so as to close the pockets 2. ing.

The container film 3 in this embodiment is made of a transparent thermoplastic resin material such as PP (polypropylene) or PVC (polyvinyl chloride). On the other hand, the cover film 4 is made of an opaque material (for example, aluminum foil, etc.) on the surface of which a sealant made of, for example, polypropylene resin or the like is provided. Of course, the materials for each of the films 3 and 4 are not limited to these, and other materials may be used.

The PTP sheet 1 is manufactured by punching out a strip-shaped PTP film 6 (see FIG. 3) formed from a strip-shaped container film 3 and a strip-shaped cover film 4, and is formed into a substantially rectangular shape in plan view. has been done.

In the PTP sheet 1, two rows of pockets are formed in the transverse direction, each consisting of five pockets 2 arranged along the longitudinal direction of the PTP sheet 1. Each pocket part 2 accommodates one tablet 5 as "contents". Note that the tablet 5 may have various information printed thereon.

Next, a schematic configuration of the PTP packaging machine 10 for manufacturing the above-mentioned PTP sheet 1 will be explained. In this embodiment, the PTP packaging machine 10 corresponds to a "manufacturing device" and a "blister packaging machine." The PTP packaging machine 10 is a device that repeatedly performs the same processing on the container film 3 as a "work" that is transported without changing the order along the transport direction. In this embodiment, the PTP sheet 1 provided with the container film 3 also corresponds to the "work".

As shown in FIG. 4, on the most upstream side of the PTP packaging machine 10, the original fabric of the strip-shaped container film 3 is wound into a roll. The drawn-out end side of the container film 3 wound into a roll is guided by a guide roll 13. The container film 3 is hung on an intermittent feed roll 14 on the downstream side of the guide roll 13. The intermittent feed roll 14 intermittently conveys the container film 3.

A preheating device 15 and a pocket forming device 16 are disposed between the guide roll 13 and the intermittent feed roll 14 along the conveyance path of the container film 3. Then, in a state where the container film 3 is preheated by the preheating device 15 and becomes relatively flexible, a plurality of pockets 2 are formed at predetermined positions on the container film 3 by the pocket forming device 16. The pocket portion 2 is formed during an interval between the conveyance operations of the container film 3 by the intermittent feed roll 14.

The container film 3 sent out from the intermittent feed roll 14 is hung over a tension roll 18, a guide roll 19, and a film receiving roll 20 in this order. The film receiving roll 20 conveys the container film 3 continuously and at a constant speed. The tension roll 18 prevents the container film 3 from loosening due to the difference in conveyance operation between the intermittent feed roll 14 and the film receiving roll 20, and keeps the container film 3 in a constant state of tension.

A filling device 22 is disposed between the guide roll 19 and the film receiving roll 20 along the conveyance path of the container film 3.

The filling device 22 fills each pocket portion 2 with tablets 5 by, for example, opening a shutter at predetermined intervals to allow the tablets 5 to fall freely.

On the other hand, the original fabric of the cover film 4 formed into a band shape is wound into a roll shape on the most upstream side. The drawn-out end of the cover film 4 wound into a roll is guided toward a heating roll 25 by a guide roll 24 .

The heating roll 25 can be brought into pressure contact with the film receiving roll 20, so that the container film 3 and the cover film 4 are fed between both rolls 20 and 25. Then, by passing both the films 3 and 4 between the rolls 20 and 25 under heat and pressure, the cover film 4 is attached to the container film 3 and the pocket portion 2 is closed with the cover film 4. As a result, a strip-shaped PTP film 6 in which a tablet 5 is housed in each pocket portion 2 is manufactured. In this embodiment, the PTP film 6 corresponds to a "blister film".

The PTP film 6 sent out from the film receiving roll 20 is hung on a tension roll 27 and an intermittent feed roll 28 in this order. The intermittent feed roll 28 intermittently conveys the PTP film 6. The tension roll 27 prevents the PTP film 6 from loosening due to the difference in conveyance operation between the film receiving roll 20 and the intermittent feed roll 28, and keeps the PTP film 6 in a constant state of tension.

The PTP film 6 sent out from the intermittent feed roll 28 is hung on a tension roll 31 and an intermittent feed roll 32 in this order. The intermittent feed roll 32 transports the PTP film 6 intermittently. The tension roll 31 prevents the PTP film 6 from loosening between the intermittent feed rolls 28 and 32.

A slit forming device 33 and a marking device 34 are disposed between the intermittent feed roll 28 and the tension roll 31 along the conveyance path of the PTP film 6. The slit forming device 33 forms a separation slit at a predetermined position on the PTP film 6. The marking device 34 marks a predetermined position (for example, a tag portion) on the PTP film 6. Note that in FIG. 1 and the like, illustrations of the separation slit and the markings are omitted.

The PTP film 6 sent out from the intermittent feed roll 32 is hung on a tension roll 35 and a continuous feed roll 36 in that order on the downstream side thereof. A sheet punching device 37 is disposed between the intermittent feed roll 32 and the tension roll 35 along the conveyance path of the PTP film 6. The sheet punching device 37 has a function of punching out the outer edge of the PTP film 6 in units of PTP sheets, that is, a function of cutting the PTP sheet 1 from the PTP film 6.

The PTP sheet 1 obtained by the sheet punching device 37 is conveyed by a conveyor 39 and temporarily stored in a hopper 40 for finished products. However, if at least one of the inspection devices C1, C2, C3, and C4, which will be described later, determines that the PTP sheet 1 is defective, the PTP sheet 1 that has been determined to be defective will not be sent to the finished product hopper 40 and will be sent to a defective (not shown) It is separately ejected by the sheet ejection mechanism.

Furthermore, a cutting device 42 is disposed downstream of the continuous feed roll 36. Then, the unnecessary film portion 43 constituting the band-shaped residual material portion (scrap portion) remaining after punching by the sheet punching device 37 is guided by the tension roll 35 and the continuous feed roll 36, and then guided to the cutting device 42. . The cutting device 42 cuts the unnecessary film portion 43 into predetermined dimensions. The cut unnecessary film portion 43 (scrap) is stored in a scrap hopper 44 and then disposed of.

Next, a first motor M1, a second motor M2, a third motor M3, a fourth motor M4, and a fifth motor are used to operate the intermittent feed roll 14, film receiving roll 20, intermittent feed rolls 28, 32, and conveyor 39 described above. The motor M5 will be explained. Note that hereinafter, these may be referred to as "motors M1 to M5."

The first motor M1 operates the intermittent feed roll 14 to intermittently transport the container film 3 to be processed by the preheating device 15 and the pocket forming device 16. In the present embodiment, the first motor M1 operates when the rotational speed generated by the master encoder EM (described later) is an even number (or odd number), and the phase (rotation angle) generated by the master encoder EM is a predetermined value ( It operates at the timing when the angle α) is reached. That is, the first motor M1 operates only once every time the number of revolutions of the master encoder EM increases by two. By operating the first motor M1 once, the container film 3 is conveyed by a predetermined length (in this embodiment, the length of one or two PTP sheets).

The second motor M2 operates the film receiving roll 20 to continuously transport the container film 3 to which the cover film 4 is attached by the rolls 20 and 25 at a constant speed. In this embodiment, the rotation speed of the master encoder EM increases by 1 and the second motor M2 operates once, so that the container film 3 is conveyed by a predetermined length (in this embodiment, one PTP sheet). be done.

The third motor M3 and the fourth motor M4 are for intermittently transporting the container film 3 to be processed by the slit forming device 33, the marking device 34, and the sheet punching device 37. In this embodiment, each time the phase of the master encoder EM reaches a predetermined value (angle α), that is, each time the number of rotations of the master encoder EM increases by 1, both motors M3 and M4 operate once. , the container film 3 is conveyed by a predetermined length (in this embodiment, the length of one PTP sheet).

The fifth motor M5 is for intermittently conveying the PTP sheet 1 by operating the conveyor 39. In this embodiment, the fifth motor M5 operates once every time the phase of the master encoder EM reaches a predetermined value (angle α), that is, every time the rotational speed of the master encoder EM increases by 1. PTP sheet 1 is intermittently conveyed by a predetermined distance. Note that the fifth motor M5 may be capable of continuously conveying the PTP sheet 1.

Furthermore, as shown in FIG. 5, a manufacturing equipment status confirmation system 50 (hereinafter simply referred to as "confirmation system 50") is applied to the PTP packaging machine 10. The confirmation system 50 is for making it possible to confirm the occurrence of defects related to the production of the PTP sheet 1 using images. The confirmation system 50 has a function of determining the quality of the container film 3 itself and the processing on the container film 3, a function of obtaining video data about the container film 3 and the processing execution status, and a function of extracting only necessary data from the video data. It has functions such as saving the data. The confirmation system 50 includes a master motor MM, a master encoder EM, a control device 60, and the like.

The master motor MM is constituted by a servo motor or the like that rotates at a constant speed, and has a predetermined rotational drive section (for example, a motor shaft). Starting and stopping of master motor MM is controlled by control device 60. In this embodiment, the operating speed of the master motor MM (rotary drive unit) gradually increases when the PTP packaging machine 10 starts operating, becomes constant after a certain period of time has passed from the start of the PTP packaging machine 10, and the When the machine 10 stops operating, it gradually decreases and finally reaches 0.

The master encoder EM generates the rotation speed and phase that serve as a reference for controlling the operation of each device in the PTP packaging machine 10. In this embodiment, the master encoder EM reads the rotation speed and phase of the rotational drive section of the master motor MM, and generates the read rotation speed and phase. The generated rotational speed and phase are standards related to the operation timing of the motors M1 to M5 (that is, standards related to the conveyance timing of the container film 3), and the timing of execution of inspection by inspection devices C1, C2, C3, and C4, which will be described later. The standard is used as a standard regarding the execution timing of photographing by cameras R1, R2, R3, R4, R5, and R6, which will be described later. In other words, the master encoder EM generates the rotational speed and phase that serve as the reference for operating control of the motors M1 to M5, inspection devices C1, C2, C3, C4, and cameras R1, R2, R3, R4, R5, and R6 (Fig. (see 6).

The rotation speed and phase generated by the master encoder EM are input to the control device 60. In this embodiment, as the master motor MM operates as described above, the phase and rotation speed generated by the master encoder EM gradually increase when the PTP packaging machine 10 starts operating, and the PTP packaging machine 10 operates. It increases at a constant speed after a certain period of time has passed from the start, and gradually decreases when the PTP packaging machine 10 stops operating (see FIG. 7).

Next, prior to explaining the control device 60, other devices included in the confirmation system 50 will be explained.

The confirmation system 50 includes a first inspection device C1, a second inspection device C2, a third inspection device C3, and a fourth inspection device C4 along the conveyance route of the container film 3 and the PTP sheet 1. Below, these may be referred to as "inspection devices C1 to C4." In this embodiment, each of the inspection devices C1 to C4 corresponds to an "inspection means".

Each of the inspection devices C1 to C4 includes an irradiation device, an imaging device, a determination device (each not shown), and the like. The irradiation device irradiates the container film 3, tablet 5, PTP sheet 1, etc. with predetermined light. The imaging device images the container film 3 and the like irradiated with light by the irradiation device. The determination device determines the quality of at least one of the container film 3 itself and the processing performed on the container film 3 based on the image data obtained by the imaging device.

The first inspection device C1 is provided downstream of the pocket forming device 16 and upstream of the filling device 22, corresponding to the container film 3 that is continuously conveyed (see FIG. 4). After forming the pocket portion 2 and before filling the pocket portion 2 with tablets 5, the first inspection device C1 performs inspection items such as the presence or absence of scratches (for example, pinholes, etc.) and dirt on the container film 3, and the pocket portion 2. An inspection is performed regarding the inspection item of presence or absence of molding defects in section 2. By inspecting the presence or absence of scratches and dirt, it is possible to determine whether the container film 3 itself is good or bad. Furthermore, by inspecting the presence or absence of molding defects in the pocket portion 2, it is possible to determine whether or not the container film 3 has been appropriately processed by the preheating device 15 and the pocket portion forming device 16. can.

The second inspection device C2 is provided downstream of the filling device 22 and upstream of the film receiving roll 20 (see FIG. 4). The second inspection device C2 performs an inspection regarding the inspection items of the presence or absence of "missing tablets" and the inspection items of the presence or absence of "standing tablets." “Missing tablet” means that no tablet 5 is accommodated in the pocket portion 2. "Standing tablet" means that the tablet 5 filled in the pocket portion 2 is in an upright state. By inspecting for "missing tablets" and "standing tablets", it can be determined whether or not the filling process of filling the pocket portion 2 with the tablets 5 by the filling device 22 has been performed appropriately.

The third inspection device C3 is provided between the film receiving roll 20 and the tension roll 27 (see FIG. 4). The third inspection device C3 performs inspections regarding the presence or absence of "missing tablets" and the presence or absence of "defective seals." "Poor sealing" refers to insufficient attachment of the cover film 4 to the container film 3. By performing the inspection for "seal failure", it can be determined whether or not the process of attaching the cover film 4 to the container film 3 by both rolls 20 and 25 is appropriate.

The fourth inspection device C4 is provided corresponding to the PTP sheet 1 conveyed by the conveyor 39 (see FIG. 4). The fourth inspection device C4 performs an inspection regarding the inspection item of presence or absence of "defective punching". The term "defective punching" refers to the occurrence of defective parts in the punched PTP sheet 1. By inspecting for "defective punching", it can be determined whether the punching process of the PTP film 6 by the sheet punching device 37 is appropriate.

Note that the pass/fail determination results from the inspection devices C1 to C4 are sent to the control device 60. Further, as described above, the execution timing of the inspection by the inspection devices C1 to C4 is controlled by the rotation speed and phase generated by the master encoder EM.

In addition, the verification system 50 includes a first encoder E1, a second encoder E2, a third encoder E3, a fourth encoder E4, and a fifth encoder E5. Below, these may be referred to as "encoders E1 to E5."

The first encoder E1 is for acquiring the rotation speed and phase of the first motor M1. In this embodiment, the first encoder E1 advances the phase of the master encoder EM by 720 degrees (the rotational speed of the master encoder EM increases by 2), and the first motor M1 operates once to extend the container film 3 to a predetermined length. It is set so that each time it is intermittently conveyed by (the length of one or two PTP sheets), the acquired phase advances by 360 degrees and the number of rotations increases by 1 (see FIG. 8).

The second encoder E2 is for acquiring the rotation speed and phase of the second motor M2. In this embodiment, the second encoder E2 advances the phase of the master encoder EM by 360 degrees, and the second motor M2 continuously operates to convey the container film 3 by a predetermined length (the length of one PTP sheet). It is set so that the acquired phase advances by 360° and the number of rotations increases by 1 each time the rotation is performed (see FIG. 9). Therefore, the rotation speed and phase acquired by the second encoder E2 are proportional to the amount of conveyance of the container film 3 by the second motor M2.

The third encoder E3 is for acquiring the rotation speed and phase of the third motor M3. The fourth encoder E4 is for acquiring the rotation speed and phase of the fourth motor M4. In both encoders E3 and E4, the phase of the master encoder EM advances by 360 degrees, and each motor M3 and M4 operates once to convey the container film 3 by a predetermined length (the length of one PTP sheet). It is set so that the acquired phase advances by 360° and the rotational speed increases by 1 each time (see FIG. 10).

The fifth encoder E5 is for acquiring the rotation speed and phase of the fifth motor M5. The fifth encoder E5 is set so that when the fifth motor M5 operates once and the PTP sheet 1 is conveyed a predetermined distance, the obtained phase advances by 360 degrees and the rotation speed increases by 1. There is.

Further, the confirmation system 50 includes a first camera R1, a second camera R2, a third camera R3, a fourth camera R4, a fifth camera R5, and a sixth camera R6 along the conveyance path of the container film 3. . Below, these may be referred to as "cameras R1 to R6." In this embodiment, the cameras R1 to R6 are provided separately from the imaging devices of the inspection devices C1 to C4, and each corresponds to a "video shooting means".

The cameras R1 to R6 take videos of the container film 3 before processing, the execution status of the processing on the container film 3, and the container film 3 and tablets 5, which may change in condition and posture depending on the quality of the processing. It is for obtaining data. The moving image data is related to the container film 3 itself or processing on the container film 3, and is composed of a plurality of still frame image data stored in chronological order. Video data obtained by cameras R1 to R6 is input to control device 60. In this embodiment, one second of video data is composed of 60 still frame image data.

Furthermore, the cameras R1 to R6 start capturing video data when the master encoder EM is activated, and end capturing video data when the master encoder EM is stopped. Thereby, the plurality of still frame image data constituting the moving image data are brought into a state of being associated with the rotation speed and phase of the master encoder EM.

The first camera R1 is provided upstream of the preheating device 15 (see FIG. 4). The first camera R1 photographs the container film 3 itself unrolled from the original film. The video data obtained by the first camera R1 is used to check whether there are any scratches, dirt, etc. on the container film 3 before the container film 3 is processed.

The second camera R2 is provided between the preheating device 15 and the pocket forming device 16 (see FIG. 4). The second camera R2 is configured by a thermo camera and photographs the container film 3 that has been preheated by the preheating device 15. The video data obtained by the second camera R2 shows the temperature distribution in the container film 3, and is used to confirm whether the preheating treatment for the container film 3 was appropriate.

The third camera R3 is provided directly downstream of the pocket forming device 16 (see FIG. 4). The third camera R3 photographs the container film 3 on which the pocket portion 2 has been formed by the pocket portion forming device 16. The video data obtained by the third camera R3 is used to confirm whether or not the process for forming the pocket portion 2 on the container film 3 was appropriate.

The fourth camera R4 is provided corresponding to the filling position of the tablet 5 by the filling device 22 (see FIG. 4). The fourth camera R4 photographs the scene in which the tablets 5 are filled into the pocket portion 2, the filled tablets 5, and the like. The video data obtained by the fourth camera R4 is used to confirm whether the filling process of the tablets 5 into the pocket portion 2 was appropriate.

The fifth camera R5 is provided corresponding to the attachment position of the cover film 4 to the container film 3 (see FIG. 4). The fifth camera R5 photographs a scene in which the cover film 4 is attached to the container film 3. The video data obtained by the fifth camera R5 is used to confirm whether the attachment process of the cover film 4 to the container film 3 was appropriate.

The sixth camera R6 is provided corresponding to the punching position of the PTP film 6 by the sheet punching device 37 (see FIG. 4). The sixth camera R6 photographs a scene in which the PTP sheet 1 is punched out from the PTP film 6. The video data obtained by the sixth camera R6 is used to confirm whether the punching process for the PTP film 6 was appropriate.

Next, the control device 60 will be explained. The control device 60 is responsible for controlling the operation of each device in the PTP packaging machine 10 and the confirmation system 50. The control device 60 includes a CPU as a calculation means, a ROM for storing various programs, a RAM for temporarily storing various data such as calculation data and input/output data, a storage medium for long-term storage of various data, and a storage medium for inputting information. It is equipped with an input device (for example, a keyboard, etc.) for performing operations, a display device (for example, a liquid crystal display, etc.) for displaying various information, and the like.

As shown in FIG. 5, the control device 60 includes a motor control section 61, a camera control section 62, and an inspection device control section 63.

The motor control unit 61 controls the operation of each motor M1 to M5 based on the rotation speed and phase generated by the master encoder EM. As a result, each of the motors M1 to M5 operates in the manner described above.

The camera control unit 62 controls the operation of each camera R1 to R6 based on the rotation speed and phase generated by the master encoder EM. As a result, each of the cameras R1 to R6 starts capturing video data when the master encoder EM is activated, and ends capturing video data when the master encoder EM stops, as described above.

The inspection device control unit 63 controls the execution timing of inspection by each of the inspection devices C1 to C4 based on the rotation speed and phase generated by the master encoder EM. In this embodiment, each inspection device C1 to C4 executes inspection every time the phase generated by the master encoder EM reaches a predetermined value.

Furthermore, as shown in FIG. 11, the control device 60 includes a ring buffer 64, a video storage section 65, a camera identification section 66, a target data storage section 67, a conversion section 68, and a retroactive frame number derivation section 69. In this embodiment, the camera specifying unit 66 constitutes a "photographing means specifying means", similarly, the target data storage unit 67 constitutes a "target data storage means", the converting section 68 constitutes a "converting means", and the retroactive frame number. The deriving unit 69 constitutes a "retroactive frame number deriving means".

The ring buffer 64 is constituted by the storage medium, and handles a certain information storage area in this storage medium like a ring. The ring buffer 64 is configured such that after data is stored in all the information storage areas, the data is overwritten by returning to the first information storage area.

The video storage unit 65 stores video data obtained by the cameras R1 to R6. More specifically, the video storage unit 65 attaches a real time time code indicating the time when the still frame image data was obtained to each still frame image data of the video data obtained by the cameras R1 to R6. It is stored in the ring buffer 64 in the format (see FIG. 12). In this embodiment, the real time time code is composed of time and frame number. In FIG. 12, a data name consisting of a time and a frame number is described as still frame image data. The frame number in this embodiment is a numerical value from 0 to 59, and indicates the acquisition order of 60 still frame image data forming one second of video data. The time is acquired using the clock function of the control device 60.

The camera specifying unit 66 specifies, from among the plurality of cameras R1 to R6, those related to the inspection item determined to be defective by the inspection devices C1 to C4. For this identification, the camera identification unit 66 uses a identification table (see FIG. 13) that is obtained in advance and shows the correspondence between the inspection item and the cameras R1 to R6 related to the inspection item.

For example, the first inspection device C1 may determine that there is a molding defect in the pocket portion 2 as a defect because some defect occurred in the preheating process for the container film 3 or in the forming process of the pocket portion 2. It is possible that Therefore, the inspection item of presence or absence of molding defects involves the second camera R2 that photographs the preheated container film 3, and the third camera R3 that photographs the container film 3 after the pocket portion 2 has been formed. . Therefore, the specific table shows that the second camera R2 and the third camera R3 correspond to the inspection item of the presence or absence of molding defects in the pocket portion 2.

For example, the second inspection device C2 may determine that the tablet 5 is defective due to the presence or absence of “missing tablets” or “standing tablets” when the filling device 22 fills the tablet 5, or when the filling device 22 It is conceivable that some kind of problem occurred during conveyance of the container film 3 at a downstream position. Therefore, the inspection item of the presence or absence of "missing tablets" and "standing tablets" involves the fourth camera R4 that photographs the scene in which the pocket portion 2 is filled with the tablets 5. Therefore, the specific table indicates that the fourth camera R4 corresponds to the inspection items such as the presence or absence of "missing locks" and "standing locks." By checking the video data obtained by the fourth camera R4, it is possible to detect a malfunction at either time when the filling device 22 fills the tablet 5 or when transporting the container film 3 at a downstream position from the filling device 22. It is possible to understand that something has occurred.

The target data storage unit 67 extracts and stores predetermined target data from the video data stored in the ring buffer 64, triggered by the defective determination by the inspection devices C1 to C4. The target data is data that is considered necessary to identify the cause and timing of occurrence of the problem. In this embodiment, the target data is moving image data consisting of a plurality of still frame image data, but may be still image data consisting of one still frame image data.

When extracting and saving the target data, the target data storage unit 67 extracts a "predetermined range" from the video data at a position that is located back by the number of retroactive frames, with the still frame image data at the time when the trigger occurs as a reference. Extract and save as target data.

Here, the number of retroactive frames refers to the number of frames related to the defective judgment from among the video data obtained by the cameras R1 to R6 related to the defective judgment when the inspection devices C1 to C4 make a defective judgment. This indicates how many frames should be traced back from the current video data in order to extract data (target data). The retroactive frame number corresponds to the conveyance amount of the container film 3 (including the PTP sheet 1) from the cameras R1 to R6 related to the defect determination by the inspection devices C1 to C4 to the inspection devices C1 to C1 that made the defect determination. The retroactive frame number is derived by the retroactive frame number deriving unit 69. The method for deriving the number of retrospective frames will be described later.

Further, the "predetermined range" corresponds to the time length of the target data, and can be changed as appropriate. In this embodiment, the predetermined range is set to a range between a position that has gone back by the number of retroactive frames and a position that has gone back by one PTP sheet (that is, one rotation of the master encoder EM) from that position. (See Figure 14).

In addition, the target data storage unit 67 extracts and stores one or more target data from among the one or more video data obtained by the cameras R1 to R6 specified by the camera specifying unit 66. Therefore, when a defect is determined based on the inspection item of the presence or absence of molding defects in the pocket portion 2, one target data is extracted and saved from the video data obtained by the second camera R2, and the third camera R3 Another target data is extracted and saved from the video data obtained.

Furthermore, when extracting the target data from the video data stored in the ring buffer 64, the target data storage unit 67 uses the conversion unit 68 to convert the rotation speed and phase of the master encoder EM corresponding to the predetermined range at real time. Convert to code.

Here, the conversion unit 68 converts the master encoder EM corresponding to the predetermined range using a conversion table (see FIG. 14) showing the correspondence between the rotation speed and phase generated by the master encoder EM and the real time time code. Converts the rotation speed and phase of the system into real-time time code. Note that the conversion table can be obtained, for example, by obtaining the correspondence between the rotation speed and phase generated by the master encoder EM and the real time time code during operation of the PTP packaging machine 10.

Then, the target data storage unit 67 extracts target data from the video data stored in the ring buffer 64 using the real time time code obtained by the conversion process. More specifically, the target data storage unit 67 extracts, as target data, a plurality of still frame image data attached with a real time time code that matches the real time time code obtained by the conversion process from the video data. do.

Further, the target data storage unit 67 stores the extracted target data in association with the inspection results by the inspection devices C1 to C4 that triggered the extraction of the target data. For example, when the first inspection device C1 determines that the pocket portion 2 is defective based on the inspection item of presence or absence of molding defects, the inspection result and the target data are stored in association with each other. Note that the image data used in the quality determination (image data for inspection) may be stored in association with the target data.

Further, the target data is stored in an area different from the area constituting the ring buffer 64 in the storage medium. Therefore, unlike the data stored in the ring buffer 64, the target data is not erased over a certain period of time.

The retroactive frame number deriving unit 69 derives the retroactive frame number based on the rotation speed and phase generated by the master encoder EM and a retroactive frame number derivation formula acquired in advance. As the retroactive frame number derivation formula, there are those that show a constant value and those that vary depending on the rotation speed and phase of the master encoder EM. A retroactive frame number derivation formula is provided for each combination of inspection devices C1 to C4 and cameras R1 to R6 that are associated in the specific table (see FIG. 13). Therefore, the retrospective frame number derivation formula includes one related to the first inspection device C1 and the first camera R1, and one related to the first inspection device C1 and the second camera R2.

For example, the retroactive frame number derivation formula for the first inspection device C1 and the second camera R2 can be obtained as follows. That is, the container film 3 to be inspected by the first inspection device C1 is transported by a predetermined amount (one PTP sheet) each time the master encoder EM rotates once, while the container film 3 to be photographed by the second camera R2 is is intermittently conveyed by one or two PTP sheets at the timing when the phase of the master encoder EM reaches a predetermined value. Therefore, the transport amount L1 of the container film 3 from the second camera R2 to the first inspection device C1 varies depending on the rotation speed and phase of the master encoder EM (see FIG. 15).

Therefore, it is possible to obtain a formula indicating the conveyance amount L1, which varies depending on the rotation speed and phase of the master encoder EM. Then, this formula (conveyance amount L1) is divided by the conveyance amount (for one PTP sheet) of the container film 3 conveyed every time the master encoder EM rotates once. Thereby, it is possible to obtain a retroactive frame number derivation formula (see FIG. 16) related to the first inspection device C1 and the second camera R2, which varies depending on the rotation speed and phase of the master encoder EM.

Further, for example, the retroactive frame number derivation formula for the second inspection device C2 and the fourth camera R4 can be obtained as follows. That is, the container film 3 inspected by the second inspection device C2 and the container film 3 photographed by the fourth camera R4 are each continuously conveyed at a constant speed. Therefore, the transport amount L2 of the container film 3 from the fourth camera R4 to the second inspection device C2 exhibits a constant value (see FIG. 17).

Therefore, by dividing the conveyance amount L2 by the conveyance amount (one PTP sheet) of the container film 3 conveyed each time the master encoder EM rotates once, the second inspection device C2 and the fourth camera R4 Such a retroactive frame number derivation formula (see FIG. 18; in this case, a constant value) can be obtained.

Then, the retrospective frame number deriving unit 69 derives the retrospective frame number from the retrospective frame number derivation formula using the rotation speed and phase of the master encoder EM at the timing when the defective determination was made. For example, when deriving the number of retroactive frames related to the first inspection device C1 and the second camera R2, the number of retroactive frames related to the first inspection device C1 and the second camera R2 is derived from the master By substituting the rotation speed and phase of the encoder EM, it is possible to obtain the number of retroactive frames related to the first inspection device C1 and the second camera R2.

Note that the retroactive frame number deriving unit 69 may derive the retroactive frame number using a derivation table acquired in advance. The derivation table shows the correspondence between the retroactive frame number corresponding to the transport amount between the inspection devices C1 to C4 and cameras R1 to R6, which are associated in the specific table, and the rotation speed and phase of the master encoder EM. It is. The retroactive frame number deriving unit 69 can derive the retroactive frame number based on this deriving table and the rotation speed and phase of the master encoder EM when the defective determination is made.

The confirmation system 50 configured as described above operates as follows. That is, when a defective determination is made by the inspection devices C1 to C4, the camera specifying unit 66 specifies cameras R1 to R6 related to the inspection item for which the defective determination has been made. For example, when the first inspection device C1 determines that the camera is defective based on inspection items such as the presence or absence of scratches and dirt, the camera specifying unit 66 specifies the cameras R1, R2, and R3.

Further, the retroactive frame number deriving unit 69 derives the retroactive frame number. This determines the predetermined range in the video data [(1) in FIG. 14]. For example, when cameras R1, R2, and R3 are specified by the camera specifying unit 66, different retroactive frame numbers are derived for each of these cameras R1, R2, and R3. Then, by deriving the retroactive frame number, the predetermined range is determined for each video data obtained by cameras R1, R2, and R3.

Further, the converter 68 converts the rotation speed and phase of the master encoder EM corresponding to the predetermined range into a real time time code [(2) in FIG. 14]. For example, when cameras R1, R2, and R3 are specified by the camera specifying unit 66, three types of real time time codes are derived corresponding to the three types of predetermined ranges.

Then, the target data storage unit 67 selects a plurality of pieces of video data from among the video data stored in the ring buffer 64 to which real time time codes that match the real time time codes obtained by the conversion process by the conversion unit 68 are attached. Still frame image data of is extracted as target data [(3) in FIG. 14]. For example, when cameras R1, R2, and R3 are specified by the camera specifying unit 66, a total of three target data are extracted from a total of three moving image data obtained by the first cameras R1, R2, and R3.

Finally, the target data storage unit 67 stores the extracted target data in association with the test results and the like. By checking the stored target data, etc., an operator or the like can learn the cause and timing of the occurrence of a malfunction, and can take more appropriate measures to prevent recurrence of the malfunction.

As described in detail above, according to the present embodiment, the still frame image data of the video data at the time when the trigger occurs (when the defective judgment is made) is used as the reference, and the A predetermined range located at a position that is traced back by the number of retroactive frames corresponding to the conveyance amount of the container film 3 (including PTP sheet 1) from the cameras R1 to R6 to the inspection devices C1 to C4 is extracted as target data. be done.

In other words, target data is extracted from the video data based on the conveyance amount of the container film 3 instead of the time. Therefore, it is possible to pinpoint the video data necessary for understanding the cause and timing of occurrence of a problem as target data from the video data, and to obtain the necessary video data more reliably and more easily. Can be done. In addition, since the target data is extracted based on the conveyance amount of the container film 3, even if there is a change in the conveyance speed of the container film 3, the video necessary to understand the cause of the problem etc. Data can be obtained more reliably.

Further, the retroactive frame number deriving unit 69 derives the retroactive frame number based on the rotation speed and phase generated by the master encoder EM. Therefore, in accordance with the fact that in video data, a plurality of still frame image data and the rotation speed and phase of the master encoder are associated with each other, it is possible to more accurately derive the number of retroactive frames that match this video data. can. As a result, it is possible to more reliably obtain, as target data, video data necessary for understanding the cause of a malfunction.

Further, the video data is stored in the ring buffer 64. Therefore, the memory area for storing video data can be saved. In addition, since video data contains information about the time when the still frame image data was obtained, it is possible to confirm when the problem occurred and at what speed the events that caused the problem occurred. can. Therefore, it is possible to take more appropriate measures to prevent the occurrence of defects.

Further, by using the converter 68, the rotation speed and phase generated by the master encoder EM can be converted into a real time time code. Then, using this real time time code, target data can be extracted from the video data. Therefore, as the target data, it is possible to more reliably obtain the video data necessary to understand the cause of the occurrence of the malfunction.

In addition, when a certain inspection item is determined to be defective, the camera specifying unit 66 can specify one or more cameras R1 to R6 related to that inspection item. Then, the target data storage unit 67 extracts and stores the target data from among the one or more video data obtained by the identified one or more cameras R1 to R6. Therefore, target data can be extracted more easily.

Further, when a plurality of cameras R1 to R6 are involved in one inspection item, a plurality of target data can be obtained from a plurality of moving image data obtained by these cameras R1 to R6. Therefore, it becomes possible to more easily and accurately understand the cause of the malfunction.

Note that the present invention is not limited to the content described in the above embodiment, and may be implemented as follows, for example. Of course, other applications and modifications not exemplified below are also possible.

(a) In the above embodiment, the video data obtained by cameras R1 to R6 is in a format in which a real time time code indicating the time when the still frame image data is obtained is attached to each still frame image data. It is stored in the ring buffer 64. On the other hand, as shown in FIG. 19, the moving image data obtained by cameras R1 to R6 are rotated by the master encoder EM for each still frame image data when the still frame image data is obtained. The data may be stored in the ring buffer 64 in a format with a mechanical time code indicating the number and phase. The target data storage unit 67 may extract and store target data from the video data stored in the ring buffer 64 using a mechanical time code.

In this case, since the video data is stored in the ring buffer 64, the memory area for storing the video data can be saved.

Furthermore, since the target data can be extracted from the video data without using the converter 68, it is possible to reduce the processing load associated with extracting the target data.

Note that the mechanical time code may include a frame number.

(b) In the above embodiment, the master encoder EM reads the rotation speed and phase of the master motor MM, and generates the read rotation speed and phase. On the other hand, the master encoder EM may, for example, read the rotation speed and phase of the second motor that drives the film receiving roll 20, and generate the read rotation speed and phase. Therefore, the second encoder E2 may be configured to also serve as the master encoder EM.

Further, the master encoder EM may be virtually realized on software.

(c) The manner in which the container film 3 is conveyed in the above embodiment is merely an example, and the manner in which the container film 3 is conveyed may be changed as appropriate. Therefore, for example, the container film 3 may be configured to be conveyed by a length corresponding to one or more PTP sheets by operating both motors M3 and M4 once.

Alternatively, the container film 3 may be conveyed in a predetermined manner without using the rotation speed and phase generated by the master encoder EM.

(d) In the above embodiment, the confirmation system 50 includes four inspection devices C1 to C4, but the number of inspection devices may be changed as appropriate.

In addition, the inspection items may also be changed as appropriate. For example, the second inspection device C2 may perform an inspection regarding the inspection item of the presence or absence of breakage in the tablet 5.

(e) In the above embodiment, the tablet 5 is mentioned as the "content", but the content is not limited to the tablet.

Further, the type, shape, etc. of the tablet are not limited to the above embodiments. For example, tablets include not only medicines but also tablets used for consumption. Furthermore, tablets include not only plain tablets, sugar-coated tablets, film-coated tablets, enteric-coated tablets, and gelatin-encapsulated tablets, but also various capsule tablets such as hard capsules and soft capsules.

Furthermore, the shape of the tablet is not limited to a circular shape in a plan view, but may be, for example, a polygonal shape, an elliptical shape in a plan view, an ellipse shape in a plan view, or the like.

(f) The configuration of the manufactured PTP sheet is not limited to the above embodiment. For example, the arrangement and number of pocket portions 2 per unit of PTP sheet are not limited to those in the above embodiment.

Further, in the above embodiment, the PTP film 6 has a configuration in which the pocket portions 2 of the number corresponding to one sheet are arranged along the width direction of the PTP film 6, but the structure is not limited to this, and for example, , a configuration may be adopted in which a number of pocket portions 2 corresponding to a plurality of sheets are arranged along the width direction. Of course, the configurations of the preheating device 15 and the pocket forming device 16 may be changed according to the configuration of the PTP film 6. Further, the amount of conveyance of the container film 3 to be processed by the preheating device 15 or the like may be changed as appropriate depending on the configuration of the preheating device 15 or the like.

Further, in the above embodiment, the PTP sheet 1 is used as the blister sheet, but the technical idea of the present invention may be applied to blister sheets other than the PTP sheet 1.

(g) In the above embodiment, the confirmation system 50 is applied to the PTP packaging machine 10, but a manufacturing device to which the confirmation system 50 can be applied is applicable to workpieces that are transferred without changing the order along the transfer direction. On the other hand, it is not limited to the PTP packaging machine 10 as long as the same process is repeatedly performed.

Therefore, for example, an apparatus for manufacturing a sealed pack that repeatedly processes a container (tray) as a "work" to contain the contents, attach a lid film, etc. The verification system 50 may be applied to the described device). In addition, for example, a board manufacturing apparatus that repeatedly performs processes such as applying solder, mounting electronic components, and heating and melting the solder (reflow process) on a base board as a "work" (for example, Japanese Patent Application Laid-Open No. 2011 The confirmation system 50 may be applied to the substrate manufacturing system described in Japanese Patent No. 15717.

DESCRIPTION OF SYMBOLS 1... PTP sheet (work), 3... Container film (work), 10... PTP packaging machine (manufacturing equipment), 50... Manufacturing equipment status confirmation system, 64... Ring buffer, 66... Camera identification unit (photographing means identification means) ), 67... Target data storage section (target data storage means), 68... Conversion section (conversion means), 69... Retroactive frame number deriving section (retroactive frame number deriving means), C1 to C4... Inspection device (inspection means), EM...Master encoder, R1 to R6...Camera (video shooting means).

Claims (5)

This is a status confirmation system for manufacturing equipment that is used in manufacturing equipment that repeatedly performs the same process on workpieces that are transported without changing the order along the transport direction, and is used to check the occurrence of manufacturing defects using videos. hand,
a moving image capturing means for obtaining moving image data related to the work itself or processing on the work, which consists of a plurality of still frame image data arranged along a conveyance path of the work and stored in chronological order;
Inspection means for determining the quality of at least one of the workpiece itself and the processing for the workpiece;
target data storage means for extracting and storing predetermined target data from the video data, triggered by the determination of the defect by the inspection means;
The target data storage means uses the still frame image data at the time when the trigger occurs among the moving image data as a reference, and stores the work from the moving image capturing means to the inspecting means related to the defect determination by the inspecting means. configured to extract and save as the target data data in a predetermined range located at a position as far back as the number of retroactive frames corresponding to the amount of transport ;
At least a master encoder capable of generating a reference rotation speed and phase for transporting the workpiece,
The video shooting means is configured to start shooting the video data when the master encoder is activated, and to end shooting the video data when the master encoder stops;
A system for checking the status of a manufacturing device , comprising retroactive frame number deriving means capable of deriving the retroactive frame number based on the rotation speed and phase generated by the master encoder . The moving image data obtained by the moving image capturing means is stored in a predetermined ring buffer in a format in which a real time time code indicating the time when the still frame image data is obtained is attached to each of the still frame image data. has been
Converting the rotation speed and phase generated by the master encoder into the real time time code using a conversion table showing the correspondence between the rotation speed and phase generated by the master encoder and the real time time code. has a conversion means to
The target data storage means converts the rotation speed and phase generated by the master encoder into the real time time code by the conversion means, and stores the real time time code in the ring buffer using the real time time code. 2. The manufacturing apparatus status confirmation system according to claim 1, wherein the system is configured to extract and save the target data from the video data that has been processed. The moving image data obtained by the moving image capturing means includes, for each still frame image data, a mechanical time code indicating the rotation speed and phase generated by the master encoder when the still frame image data was obtained. It is saved in the specified ring buffer in the format with
The target data storage means is configured to extract and store the target data from the video data stored in the ring buffer using the mechanical time code. A status confirmation system for manufacturing equipment according to claim 1 . A plurality of the video shooting means are provided along the conveyance direction of the workpiece,
The inspection means includes one for determining pass/fail for a plurality of inspection items,
Using a specific table showing a correspondence relationship between the inspection item and the video capturing means related to the inspection item, one of the plurality of video capturing means related to the inspection item determined to be defective is specified. It has a photographing means identification means,
The target data storage means is configured to extract and store the target data from among the video data obtained by the video shooting means specified by the photographing means specifying means. A status confirmation system for manufacturing equipment according to any one of claims 1 to 3 . This is a manufacturing equipment status confirmation system used in manufacturing equipment that repeatedly performs the same process on workpieces that are transported without changing the order along the transport direction, and is used to check the occurrence of manufacturing defects using videos. hand,
a moving image capturing means for obtaining moving image data relating to the work itself or processing on the work, which consists of a plurality of still frame image data arranged along a conveyance path of the work and stored in chronological order;
Inspection means for determining the quality of at least one of the workpiece itself and the processing for the workpiece;
target data storage means for extracting and storing predetermined target data from the video data, triggered by a defective determination by the inspection means;
The target data storage means uses the still frame image data of the moving image data at the time when the trigger occurs as a reference, and stores the work from the moving image capturing means to the inspecting means related to the defect determination by the inspecting means. configured to extract and save as the target data data in a predetermined range located at a position as far back as the number of retroactive frames corresponding to the transport amount;
A plurality of the video shooting means are provided along the conveyance direction of the workpiece,
The inspection means includes one for determining pass/fail for a plurality of inspection items,
Using a specific table showing a correspondence relationship between the inspection item and the video capturing means related to the inspection item, one of the plurality of video capturing means related to the inspection item determined to be defective is specified. It has a photographing means identification means,
The target data storage means is configured to extract and store the target data from among the video data obtained by the video shooting means specified by the photographing means specifying means. Manufacturing equipment status confirmation system.

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