JP2019211384A - Split inspection device and sheet manufacturing system - Google Patents

Abstract

To provide a split inspection device that can drastically improve the inspection accuracy of the split line.SOLUTION: A split inspection device 50 inspects a split line for dividing a sheet into predetermined sheet pieces. The split inspection device 50 includes a load generator 60 for generating a load to the forming point of the split line in the sheet; a state detection unit 73 for detecting the state of the split line during or after generation of load on the sheet by the load generator 60; and a quality determination unit 75 for determining the quality of the split line based on the results detected by the state detection unit 73 and preset criteria. The inspection results of the split line can be obtained by going through steps of: (1) generation of load at a place where the split line is formed; (2) detection of the state of the split line after or during generation of load; and (3) quality determination of the split line based on the detected state of the split line, under certain conditions.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a division property inspection apparatus and a sheet manufacturing system for inspecting division lines formed on a sheet.

  In a sheet such as a blister sheet that contains contents such as tablets, capsules, and foods, a dividing line for dividing (separating) the sheet into predetermined sheet pieces may be formed. Examples of the dividing line include slits (cuts) formed by linear grooves, and perforations formed by arranging a plurality of through holes in a straight line at intervals. The division lines are formed, for example, by pressing a predetermined cutter against the sheet to form a cut or a through hole having a predetermined depth in the sheet.

  By the way, if the sheet cannot be divided so easily in the dividing line, or vice versa, the convenience of handling the sheet may be impaired. There is. Therefore, in order to ensure good convenience more reliably, there are cases where the performance (that is, the division property) relating to the division of the sheet is inspected for the division line.

  For example, a method of evaluating a sheet by folding the sheet three times along a dividing line is known as an inspection for dividing (for example, see Patent Document 1).

Japanese Patent No. 5110444

  However, the conventional division property inspection is an subjective sensory test, in which an operator manually evaluates the folded sheet. Therefore, there is a possibility that the inspection result may vary depending on the physical condition and mood of the operator who performs the inspection. Further, when a plurality of operators are in charge of inspection, there is a possibility that the inspection result may vary due to individual differences among the operators.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a separability inspection apparatus and the like that can dramatically improve the inspection accuracy of the division lines.

  In the following, each means suitable for solving the above-described object will be described in terms of items. In addition, the effect specific to the means to respond | corresponds as needed is added.

Means 1. A separability inspection apparatus for inspecting a dividing line for dividing a sheet into predetermined sheet pieces formed on a sheet containing predetermined contents,
Load generating means for generating a load on the formation position of the dividing line in the sheet;
State detection means for detecting the state of the divided line during generation of a load on the sheet by the load generation means or after generation of the load;
A separability inspection apparatus comprising: a quality determination unit that determines the quality of the division line based on a result detected by the state detection unit and a predetermined criterion.

  The division line inspection results are based on (1) the generation of a load on the formation position of the division line, (2) the detection of the state of the division line after or during the generation of the load, and (3) the state of the detected division line. It is obtained through a process of determining the quality of the division line. According to the means 1, the load generating means can perform (1) under a certain condition, and is always set to a target load (for example, for each sheet type arbitrarily) to the formation position of the dividing line in the sheet. Load) can be generated (applied). Further, (2) and (3) can be performed under certain conditions by the state detection unit and the pass / fail judgment unit, and the state detection and pass / fail judgment of an objective and stable division line can be performed. be able to. As a result, it is possible to dramatically improve the inspection accuracy of the divided lines.

  Further, according to the means 1, the division line can be automatically inspected by each means without manual operation. Accordingly, it is possible to prevent the waste of human resources associated with the inspection, and it is possible to reduce the cost relating to production and the like.

Mean 2. The load generating means includes
A first receiving part configured to be in contact with one side part of the sheet with the dividing line interposed therebetween;
It has a second receiving portion that is configured to be in contact with the other side portion of the sheet, with the other side portion sandwiching the dividing line,
While changing the relative positional relationship between the first receiving portion and the second receiving portion while bringing the first receiving portion and the second receiving portion into contact with the sheet, a load is applied to the formation location. The division property inspection apparatus according to means 1, characterized in that:

  When dividing the sheet in actual use, for example, after holding the one side part and the other side part of the sheet with the dividing line between them and folding the sheet, or holding only one side part The sheet is folded by pushing and pulling the other side part, and further, a tensile force is applied to the part where the division line is formed on the sheet after grasping the one side part and the other side part. That is, in general, the sheet is divided by applying force to one side portion and the other side portion of the sheet that sandwich the dividing line with both hands.

  In this regard, according to the above-described means 2, the first receiving portion and the second receiving portion corresponding to both hands are provided, and when the load is applied to the sheet in the inspection, the sheet is generally divided. The movement close to the movement of the user to be performed can be reproduced. As a result, it is possible to perform an inspection assuming actual use, and the inspection accuracy of the divided lines can be further increased.

  Means 3. The first holding portion is in a state where the one side portion of the sheet is gripped and the sheet is fixed, and the second receiving portion grips the sheet, or a gap is formed from both the front and back surfaces of the sheet. The load is applied to the formation location by changing the relative positional relationship between the first receiving portion and the second receiving portion. The division | segmentation inspection apparatus of the means 2 to do.

  According to the means 3, since the sheet is gripped and fixed by the first receiving part, the load can be stably generated (applied) to the sheet, and the inspection accuracy can be more reliably increased.

  Further, according to the above-described means 3, the second receiving portion is in a state of gripping the sheet or in a state of leaving a gap from both the front and back surfaces of the sheet, and the relative relationship between the first receiving portion and the second receiving portion. A load can be generated on the seat by changing the positional relationship.

  Here, when the second holding unit is configured to grip the sheet, a movement that generates a load on the sheet after the sheet is held by both hands (for example, a movement that bends or shreds the sheet with both hands). ) Can be reproduced more reliably. Therefore, it is possible to more accurately perform an inspection assuming actual use.

  On the other hand, when a load is generated on the sheet while the sheet is held by the second holding unit, a compressive force or a pulling force is easily applied to the portion where the division line is formed on the sheet. On the other hand, the second receiving portion is in a state where a gap is formed from both sides of the sheet, and the relative positional relationship between the first receiving portion and the second receiving portion is changed to generate a load. (For example, when only the second receiving part is moved and the front or back surface of the sheet is pressed by the second receiving part), the compressive force or tension is applied to the part where the dividing line is formed on the sheet. It is possible to make it difficult to apply force and to perform inspection with a simple load. Therefore, it is possible to suppress variations in inspection results due to the occurrence of a complicated load. In addition, when a load is generated on the sheet while the sheet is held by the second holding unit, the load generated due to a difference in the surface resistance or the holding position of the sheet may fluctuate. By generating the load without gripping the sheet, it is possible to further suppress fluctuations in the generated load and further improve the inspection accuracy.

  Means 4. The first receiving unit is configured to be able to keep the dividing line in a predetermined state by gripping the sheet while maintaining the shape of the sheet or changing the shape. The division | segmentation test | inspection apparatus of the means 3 characterized by these.

  There may be a difference in shape due to the presence or absence of warpage between the sheet immediately after manufacture and the sheet after a while from manufacture. Then, the sheet splitting property may be different between the case where the sheet is warped and the dividing line is curved, and the case where the sheet is not warped and the dividing line is linear. In general, it is easier to divide a sheet when the dividing line is curved than when the dividing line is linear.

  In this regard, according to the above means 4, the first receiving part keeps the dividing line in a predetermined state by holding the sheet while maintaining the shape of the sheet or changing the shape of the sheet. Is possible. Therefore, even when the inspection is performed immediately after the manufacturing, the inspection can be performed after adjusting the shape of the dividing line to a state corresponding to the state when the time has elapsed since the manufacturing. For example, when a sheet immediately after production is warped and the dividing line is curved, but the warp is eliminated over time and the sheet becomes flat (at the stage of use) eventually. In addition, the sheet can be gripped with the sheet deformed into a flat shape, and the inspection can be performed while keeping the dividing lines in a straight line. Further, in the inspection of the sheet in which the dividing line finally becomes curved, it is possible to perform the inspection while maintaining the bending state of the dividing line so as to match the final degree of bending of the dividing line by the first receiving unit. . As described above, since the inspection can be performed while the sheet is assumed to be in an actual use state, the inspection accuracy can be further improved.

Means 5. The load generating means includes a double-arm robot,
The first receiving part is provided on one arm of the double-arm robot, and the second receiving part is provided on the other arm of the double-arm robot. The division | segmentation test | inspection apparatus in any one of.

  According to the means 5, the first receiving part and the second receiving part are provided on both arms of the double-arm robot. Therefore, it is possible to easily generate a complicated load such as bending the sheet at a right angle or more, or applying a tensile force in the direction of separating the sheet pieces to the sheet, and improving the degree of freedom in inspection. it can. In addition, the actual movement when the user divides the sheet can be reproduced more reliably, and the same inspection as when a human hand is actually used can be performed. Further, by teaching the operation of the operator at the time of inspection, it is possible to reproduce the inspection by the operator as many times as possible.

  Means 6. The means according to any one of means 1 to 5, wherein the determination criterion is based on a detection value obtained when the sheet, which is presumed to be determined to be non-defective by an operator, is actually inspected. Divisibility inspection device.

  The “sheet presumed to be judged as good by the operator” refers to a sheet manufactured under the same conditions as the sheet judged as good by the operator (operator), for example. The “detected value” is a numerical value that can vary depending on the quality of the division line among various numerical values that can be detected during or after the load is generated on the sheet. For example, the load is generated on the sheet. This is the pressure applied from the seat side when the vehicle is on.

  According to the means 6, the determination criterion by the quality determination means is set based on the detection value obtained when the sheet presumed to be determined to be non-defective is actually inspected by the separability inspection apparatus. Therefore, the determination criterion can be set correctly and easily, and the inspection accuracy can be further improved.

Mean 7 A sheet manufacturing apparatus for manufacturing a sheet containing a predetermined content and forming a division line for dividing the predetermined content into small pieces,
A sheet manufacturing system comprising: a splitability inspection device that is described in any one of means 1 to 6 and inspects the split line of the sheet manufactured by the sheet manufacturing device.

  According to the means 7, the same operation and effect as the means 1 and the like are achieved.

It is a perspective view of a PTP sheet. It is a partially broken enlarged front view of a PTP sheet. It is a perspective view of a PTP film. It is a perspective view which shows the PTP sheet with a curvature. It is a schematic block diagram of a sheet manufacturing system. It is a block diagram which shows schematic structure, such as the division property test | inspection apparatus in 1st Embodiment. It is a perspective schematic diagram which shows the 1st receiving part and 2nd receiving part in 1st Embodiment. In 1st Embodiment, it is a perspective view of the PTP sheet for showing the site | part which can be hold | gripped by the 1st receiving part and the 2nd receiving part. It is a perspective schematic diagram which shows another example of a 1st holding part. It is a perspective schematic diagram which shows another example of a 1st holding part. It is a flowchart of an inspection process. It is a perspective schematic diagram which shows the 1st receiving part etc. in a 1st holding | grip process. It is a perspective schematic diagram which shows the 2nd receiving part etc. in a 2nd holding | grip process. It is a front schematic diagram which shows the 2nd receiving part etc. in one process of a load generation process. It is a front schematic diagram which shows the 2nd receiving part etc. in one process of a load generation process. It is a front schematic diagram which shows a 2nd receiving part etc. when a PTP sheet | seat is divided | segmented in one process of a load generation process. It is a graph which shows a part of example of the information which concerns on transition of a load. It is a graph which shows a part of example of the information which concerns on transition of a load. It is a graph which shows a part of example of the information which concerns on transition of a load. In 2nd Embodiment, it is a perspective schematic diagram which shows the 2nd receiving part etc. when generating the load to a PTP sheet. In 2nd Embodiment, it is a front schematic diagram which shows the 2nd receiving part etc. when generating the load to a PTP sheet. In 2nd Embodiment, it is a front schematic diagram which shows a 2nd receiving part etc. when a load is generated to a PTP sheet and a PTP sheet is divided | segmented. It is a block diagram which shows schematic structure, such as a load generator in 3rd Embodiment. In 3rd Embodiment, it is a front schematic diagram which shows schematic structure of a double-arm robot. In 3rd Embodiment, it is a front schematic diagram which shows the double-arm robot etc. when generating the load to a PTP sheet. In 3rd Embodiment, it is a front schematic diagram which shows the double-arm robot etc. when generating the load to a PTP sheet. In 3rd Embodiment, it is a front schematic diagram which shows a double arm robot etc. when a load is generated to a PTP sheet and a PTP sheet is divided | segmented. In 4th Embodiment, it is a perspective schematic diagram which shows schematic structures, such as a 2nd receiving part. In 4th Embodiment, it is a front schematic diagram which shows the 2nd receiving part etc. when generating the load to a PTP sheet. In 4th Embodiment, it is a front schematic diagram which shows the 2nd receiving part etc. when generating the load to a PTP sheet. In 5th Embodiment, it is a perspective schematic diagram which shows schematic structures, such as a 2nd receiving part. In 5th Embodiment, it is a plane schematic diagram which shows the structure of the 1st receiving part when the load is generated to a PTP sheet, and a 2nd receiving part. In another embodiment, it is a side surface schematic diagram of the 2nd receiving part etc. for showing the holding position of the PTP sheet by the 2nd receiving part. In another embodiment, it is a perspective schematic diagram for showing schematic structures, such as a 2nd receiving part. It is a perspective schematic diagram for showing schematic structures, such as a double-arm robot in another embodiment. It is a perspective schematic diagram of the 1st receiving part etc. for demonstrating the load generation | occurrence | production method in another embodiment. In another embodiment, it is a schematic front view of a PTP sheet or the like showing a state in which a load is generated on the PTP sheet by changing the relative positions of the first receiving unit and the second receiving unit with respect to the line pressing unit. is there. In another embodiment, it is a perspective schematic diagram which shows schematic structure of the 1st receiving part and the 2nd receiving part which hold | grip the formation location of the pocket part in a PTP sheet.

Hereinafter, embodiments will be described with reference to the drawings.
[First Embodiment]
First, the PTP sheet 1 as a sheet will be described. As shown in FIGS. 1 and 2, the PTP sheet 1 includes a container film 3 having a plurality of pocket portions 2 and a cover film 4 attached to the container film 3 so as to close the pocket portions 2. doing. Each pocket 2 stores one tablet 5 as a content.

  The PTP sheet 1 is formed in a substantially rectangular shape in a plan view, and two pocket rows composed of three pocket portions 2 arranged along the longitudinal direction of the sheet are formed in the lateral direction of the sheet. That is, a total of six pocket portions 2 are formed. Of course, the number and arrangement of the pocket portions 2 can be changed as appropriate.

  The PTP sheet 1 is manufactured into a sheet shape by punching a strip-shaped PTP film 8 (see FIG. 3) formed from the strip-shaped container film 3 and the cover film 4. The PTP film 8 may have a configuration in which two or more pocket portions 2 are arranged along the width direction.

  The container film 3 is formed of a transparent or translucent 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, an aluminum foil) having a sealant made of, for example, polypropylene resin or the like applied on the surface thereof.

  The container film 3 is formed with a plurality of dividing lines 7 for dividing (separating) the PTP sheet 1 into small sheet pieces 6 including two pocket portions 2. In the present embodiment, the division line 7 is a groove extending in parallel with the short side direction of the PTP sheet 1 and is a so-called slit. In addition, you may comprise the division line 7 by the perforation which arrange | positions a several through-hole linearly at intervals.

  Next, sheet manufacturing provided with a PTP packaging machine 11 as a sheet manufacturing apparatus for manufacturing the PTP sheet 1 and a splitting inspection apparatus 50 for inspecting the split line 7 of the manufactured PTP sheet 1 in particular. A schematic configuration of the system 10 will be described. First, the PTP packaging machine 11 will be described.

  As shown in FIG. 5, on the most upstream side of the PTP packaging machine 11, the raw material of the strip-shaped container film 3 is wound in a roll shape. The drawer end side of the container film 3 wound in a roll shape is guided by the guide roll 14. The container film 3 is hooked on the intermittent feed roll 15 on the downstream side of the guide roll 14. The intermittent feed roll 15 is connected to a motor that rotates intermittently and transports the container film 3 intermittently.

  Between the guide roll 14 and the intermittent feed roll 15, a heating device 16 and a pocket portion forming device 17 are sequentially arranged along the conveyance path of the container film 3. Then, in a state where the container film 3 is heated by the heating device 16 and the container film 3 becomes relatively flexible, a plurality of pocket portions 2 are formed at a predetermined position of the container film 3 by the pocket portion forming device 17 at a time. The The pocket portion 2 is formed at an interval between the transport operations of the container film 3 by the intermittent feed roll 15.

  The container film 3 fed from the intermittent feed roll 15 is hung in the order of the tension roll 18, the guide roll 19 and the film receiving roll 20. Since the film receiving roll 20 is connected to a motor that rotates at a constant speed, the container film 3 is transported continuously and at a constant speed. The tension roll 18 is in a state where the container film 3 is pulled toward the side where the container film 3 is tensioned by an elastic force, and prevents the container film 3 from slackening due to the difference in the transport operation between the intermittent feed roll 14 and the film receiving roll 20. The container film 3 is always kept in a tension state.

  Between the guide roll 19 and the film receiving roll 20, a tablet filling device 21 and a pre-seal inspection device 22 are disposed along the conveyance path of the container film 3. The tablet filling device 21 has a function as a filling means for automatically filling the tablet 5 in the pocket portion 2. The tablet filling device 21 is configured to drop the tablets 5 by opening the shutter at predetermined intervals in synchronization with the transport operation of the container film 3 by the film receiving roll 20, and each pocket portion is accompanied by the shutter opening operation. 2 is filled with tablets 5.

  The pre-seal inspection device 22 inspects a part of the container film 3 and the tablet 5 that finally becomes the PTP sheet 1 before sealing. The pre-seal inspection device 22 includes, for example, a camera (not shown) that images the container film 3 and the tablet 5 and performs an inspection based on an image captured by the camera. Items to be inspected by the pre-seal inspection device 22 include contamination of the pocket 2, breakage of the tablet 5, missing tablets, abnormal shape of the tablet 5, and presence / absence of defects in the container film 3 (sheet portion).

  On the other hand, the original film of the cover film 4 formed in a band shape is wound in a roll shape on the most upstream side.

  The drawing end of the cover film 4 wound in a roll shape is guided toward the heating roll 25 by the guide roll 24. The heating roll 25 can be pressed against the film receiving roll 20, and the container film 3 and the cover film 4 are fed between the rolls 20 and 25. And when the container film 3 and the cover film 4 pass between both the rolls 20 and 25 in a heating-pressing state, the cover film 4 is stuck to the container film 3, and the pocket part 2 is closed by the cover film 4. . Thereby, the PTP film 8 with which the tablet 5 was filled in each pocket part 2 is manufactured.

  The PTP film 8 sent out from the film receiving roll 20 is hooked in the order of the tension roll 27 and the intermittent feed roll 28. Since the intermittent feed roll 28 is connected to a motor that rotates intermittently, it intermittently transports the PTP film 8. The tension roll 27 is in a state in which the PTP film 8 is pulled toward the side to be tensioned by an elastic force, and prevents the PTP film 8 from slacking due to the difference in the transport operation between the film receiving roll 20 and the intermittent feed roll 28. The PTP film 8 is always kept in tension.

  A post-seal inspection device 29 is disposed between the film receiving roll 20 and the tension roll 27 along the conveyance path of the container film 3. The post-seal inspection device 29 inspects a part of the PTP film 8 that will eventually become the PTP sheet 1 after sealing. Items to be inspected by the post-seal inspection device 29 include contamination of the pocket 2, breakage of the tablet 5, missing tablets, abnormal shape of the tablet 5, presence / absence of defects in the container film 3 (sheet portion), and sealing quality.

  The PTP film 8 delivered from the intermittent feed roll 28 is hooked in the order of the tension roll 31 and the intermittent feed roll 32. Since the intermittent feed roll 32 is connected to a motor that rotates intermittently, it intermittently transports the PTP film 8. The tension roll 31 is in a state in which the PTP film 8 is pulled toward the side where the PTP film 8 is tensioned by an elastic force, and prevents the PTP film 8 from loosening between the intermittent feed rolls 28 and 32.

  Between the intermittent feed roll 28 and the tension roll 31, a dividing line forming device 33 and a marking device 34 are sequentially arranged along the transport path of the PTP film 8. The marking device 34 has a function of marking a predetermined position (for example, a tag portion) of the PTP film 8.

  The dividing line forming device 33 includes a heater block (not shown) that can be heated and a plurality of dividing line forming blades (not shown) disposed on the upper surface of the heater block. Each dividing line forming blade extends along the transport direction of the PTP film 8 and is arranged at equal intervals along a direction orthogonal to the transport direction. And the said dividing line formation blade approaches the container film 3, and when the said container film 3 is cut | disconnected by predetermined depth, the several dividing line 7 is formed in the predetermined position of the PTP film 8 at once. When the dividing line 7 is formed by perforations, a blade for forming a plurality of linearly arranged through holes in the PTP film 8 at a time (for example, a saw blade, etc.) as a dividing line forming blade ) May be used.

  The PTP film 8 sent out from the intermittent feed roll 32 is wound on the downstream side in the order of the tension roll 35 and the continuous feed roll 36. A sheet punching device 37 is disposed between the intermittent feed roll 32 and the tension roll 35 along the transport path of the PTP film 8. The sheet punching device 37 has a function of punching the outer edge of the PTP film 8 in units of one PTP sheet.

  In the present embodiment, the PTP sheet 1 immediately after manufacture obtained by punching has heat accompanying the seal and is warped. Therefore, the dividing line 7 in the PTP sheet 1 immediately after manufacture is curved (see FIG. 4). Usually, the warp of the PTP sheet 1 is naturally eliminated after a predetermined time has elapsed. Therefore, finally (at the stage of use), the PTP sheet 1 becomes flat and the dividing line 7 becomes linear (see FIG. 1).

  The PTP sheet 1 punched by the sheet punching device 37 is conveyed by a take-out conveyor 38 and temporarily stored in a finished product hopper 39. However, the PTP sheet 1 determined to be defective by the pre-seal inspection device 22 or the post-seal inspection device 29 is separately discharged by the defective sheet discharge mechanism 40.

  Further, when the inspection execution timing set in advance is reached, one of the PTP sheets 1 immediately after manufacture conveyed by the take-out conveyor 38 is divided by the inspection sheet conveying device 44 (see FIG. 6), which will be described later. It is conveyed to the device 50. As the inspection execution timing, for example, the timing at which a predetermined time has passed since the last time the PTP sheet 1 was conveyed by the inspection sheet conveying device 44, or the number of manufactured PTP sheets 1 reached a predetermined number. Timing can be mentioned.

  A cutting device 41 is disposed on the downstream side of the continuous feed roll 36. The scrap portion 42 remaining in a belt shape after being punched by the sheet punching device 37 is guided to the tension roll 35 and the continuous feed roll 36 and then guided to the cutting device 41. The continuous feed roll 36 is in pressure contact with a driven roll, and performs a conveying operation while sandwiching the scrap portion 42. The cutting device 41 has a function of cutting the scrap portion 42 into a predetermined size. The cut scrap part 42 is stored in the scrap hopper 43 and then disposed of separately.

  Each of the rolls 14, 19, 20, 28, 31, 32 and the like has a positional relationship in which the roll surface and the pocket portion 2 face each other. Since the recessed part which accommodates is formed, the pocket part 2 is not crushed fundamentally. Further, the feeding operation is performed while the pocket portion 2 is accommodated in the recesses such as the rolls 14, so that the intermittent feeding operation and the continuous feeding operation are performed reliably.

  The operation of the PTP packaging machine 11 is controlled by a predetermined control device 45. The control device 45 is configured to be able to urgently stop the manufacturing operation of the PTP sheet 1 in the PTP packaging machine 11 when various defect signals are input. In the present embodiment, even when a division line defect signal described later is input, the control device 45 urgently stops the manufacturing operation of the PTP sheet 1 in the PTP packaging machine 11.

  Next, the division property inspection apparatus 50 will be described. The splitting inspection apparatus 50 is an apparatus that inspects the dividing line 7 among the PTP sheets 1 manufactured as described above, in particular, as inspection targets. As shown in FIG. 6, the separability inspection device 50 includes a load generation device 60 and a detection determination device 70 as load generation means.

  The load generating device 60 receives and holds the inspection PTP sheet 1 conveyed by the inspection sheet conveying device 44, and then generates a load on the portion where the dividing line 7 is formed on the PTP sheet 1 (application). To do). The load generation device 60 has a sensor (not shown), and determines whether or not the inspection PTP sheet 1 has arrived by the sensor.

  In the present embodiment, the load generator 60 generates a load on the PTP sheet 1 by bending the PTP sheet 1 along the dividing line 7. As shown in FIG. 7, the load generating device 60 includes a first receiving portion 61 and a second receiving portion 62 that are each attached to a predetermined base (not shown).

  The first receiving unit 61 is a mechanism that takes charge of (in charge of) one side portion of the PTP sheet 1 that sandwiches the division line 7 to be inspected, and a user who wants to divide the PTP sheet 1 using the division line 7. Corresponds to one hand (for example, the right hand). In the present embodiment, one division line 7 set in advance among the plurality of division lines 7 provided on the PTP sheet 1 is an inspection target. The first holding portion 61 includes an upper grip piece 61 a corresponding to the surface of the PTP sheet 1 (surface on the side where the pocket portion 2 protrudes) and a lower grip piece 61 b corresponding to the back surface of the PTP sheet 1. I have.

  The upper grip piece 61a has a plurality of (three in the present embodiment) upper finger portions 61c extending in the horizontal direction, and the lower grip piece 61b is a plurality of opposite faces of the upper finger portion 61c. The lower finger portion 61d is provided. The interval between the upper finger portions 61 c and the interval between the lower finger portions 61 d are set to be larger than the outer diameter of the pocket portion 2. Further, the width of the upper finger portion 61c and the width of the lower finger portion 61d are set to be smaller than the interval between the adjacent pocket portions 2 along the short direction of the PTP sheet 1. Furthermore, the lower surface of each upper finger 61c and the upper surface of each lower finger 61d are flat horizontal surfaces having the same height.

  Furthermore, the upper grip piece 61a and the lower grip piece 61b are configured to be able to approach and separate by a driving means (not shown). The upper grip piece 61a and the lower grip piece 61b move closer so that the one side portion of the PTP sheet 1 can be gripped by the grip pieces 61a and 61b and the PTP sheet 1 can be fixed. It has become.

  The gripping of the PTP sheet 1 by the upper gripping piece portion 61a and the lower gripping piece portion 61b, that is, the first receiving portion 61 will be described in more detail. First, before gripping the PTP sheet 1, it is used for inspection by a positioning device (not shown). The PTP sheet 1 is disposed at a predetermined position. At this time, the PTP sheet 1 has a portion (that is, a flat sheet portion) deviated from the pocket portion 2 in a plan view and is disposed between the lower surface of the upper finger portion 61c and the upper surface of the lower finger portion 61d and The dividing line 7 is arranged in a state parallel to the tip surfaces of the finger portions 61c and 61d and slightly separated from the tip surfaces (for example, about several mm). Then, in this state, the upper grip piece 61a and the lower grip piece 61b move closer, the upper grip piece 61a contacts the surface of the PTP sheet 1, and the lower grip piece 61b is the back surface of the PTP sheet 1. The first receiving part 61 grips a part of the one side part of the PTP sheet 1 that is removed from the pocket part 2. In the present embodiment, of the one side portion of the PTP sheet 1, the first receiving portion 61 grips both the edge portions in the width direction and the portion located between the pocket portions 2 adjacent in the short direction of the PTP sheet 1. (Refer to FIG. 8. In FIG. 8, a dotted pattern is given to the portion gripped by the first receiving portion 61). Further, the first receiving unit 61 holds a part of the PTP sheet 1 that is located in the immediate vicinity of the dividing line 7 to be inspected (for example, a part that is a few mm away from the dividing line 7).

  Further, the warped PTP sheet 1 immediately after manufacture has the PTP sheet 1 held in a state where the shape of the PTP sheet 1 is changed to a flat shape by gripping the PTP sheet 1 by the first receiving portion 61. It can be gripped (see FIG. 11). By making the PTP sheet 1 flat, the dividing line 7 can be kept linear.

  In addition, the structure of the 1st receiving part 61 mentioned above is an example, and the structure of the 1st receiving part 61 can be changed suitably. Therefore, as shown in FIG. 9, for example, the upper grip piece 61a includes two upper finger portions 61e arranged in parallel and an upper connection portion 61f that connects the tip portions of both upper finger portions 61e, The lower holding piece 61b connects the two lower fingers 61g opposite to the upper finger 61e and the tips of both lower fingers 61g, and the lower connecting part opposite to the upper connecting portion 61f. 61h may be provided. In this case, both edge portions in the width direction in one side portion of the PTP sheet 1 are gripped by the upper finger portion 61e and the lower finger portion 61g, and in the one side portion of the PTP sheet 1 by the upper connection portion 61f and the lower connection portion 61h. A portion adjacent to the division line 7 to be inspected is gripped (in FIGS. 9 and 10, a portion of the PTP sheet 1 gripped by the first receiving portion 61 is given a dotted pattern).

  Further, as shown in FIG. 10, for example, the upper gripping piece 61a is connected to one upper finger 61j and the tip of the upper finger 61j and extends in a direction perpendicular to the upper finger 61j. The lower gripping part 61b is connected to the lower finger part 61m facing the upper finger part 61j and the tip part of the lower finger part 61m, and the lower orthogonal part 61n facing the upper orthogonal part 61k. You may comprise so that. In this case, the upper finger part 61j and the lower finger part 61m grip a part located between the adjacent pocket parts 2 in one part of the PTP sheet 1, and the upper orthogonal part 61k and the lower orthogonal part 61n The part adjacent to the dividing line 7 to be inspected in the one side part of the sheet 1 is gripped.

  Returning to FIG. 7, the second receiving unit 62 is a mechanism that takes charge (in charge) of the other side of the PTP sheet 1 with the dividing line 7 to be inspected in between, and divides the PTP sheet 1 by the dividing line 7. This corresponds to the other hand (for example, the left hand) of the user who is going to try. The second receiving portion 62 includes an upper corresponding portion 62 a corresponding to the front surface of the PTP sheet 1 and a lower corresponding portion 62 b corresponding to the back surface of the PTP sheet 1.

  The upper corresponding portion 62a has a plurality (three in the present embodiment) of upper finger portions 62c extending in the vertical direction, and the lower corresponding portion 62b is a position facing the tip portion of the upper finger portion 62c. A plurality of lower finger portions 62d provided on the upper side. The outer diameter of each of the upper finger part 62 c and the lower finger part 62 d is smaller than the outer diameter of the pocket part 2.

  In addition, a load cell (not shown) is provided at the tip of each of the upper finger portion 62c and the lower finger portion 62d. The load cell is for detecting a load (pressure) applied to the tip of each of the upper finger 62c and the lower finger 62d, and a signal (load signal) relating to the detected load is a state detection described later. The signal is output to the unit 73 at regular intervals.

  Furthermore, the upper corresponding part 62a and the lower corresponding part 62b are configured to be able to approach and separate by a driving means (not shown). The upper side corresponding portion 62a and the lower side corresponding portion 62b move closer to each other, so that the other side portion of the PTP sheet 1 can be held by both the corresponding portions 62a and 62b.

  In the present embodiment, after gripping the PTP sheet 1 by the first receiving part 61, the upper corresponding part 62a and the lower corresponding part 62b move closer, and the upper corresponding part 62a contacts the surface of the PTP sheet 1, When the lower corresponding portion 62 b comes into contact with the back surface of the PTP sheet 1, a portion of the other side portion of the PTP sheet 1 out of the pocket portion 2 is gripped by the second receiving portion 62. In particular, in the present embodiment, a portion of the other side portion of the PTP sheet 1 adjacent to the pocket portion 2 along the short direction of the PTP sheet 1 is gripped by the second receiving portion 62 (see FIG. 8). In FIG. 8, the portion that can be gripped by the second receiving portion 62 is shaded).

  Further, the upper corresponding portion 62a and the lower corresponding portion 62b are configured to be movable in the vertical direction in the same movement manner. While the PTP sheet 1 is gripped by the upper corresponding portion 62a and the lower corresponding portion 62b, the corresponding portions 62a and 62b are moved up and down to fold the PTP sheet 1 along the dividing line 7 and to divide the PTP sheet 1 A load can be generated at the position where the line 7 is formed (see FIGS. 14 and 15).

  Returning to FIG. 6, the detection determination device 70 will be described. The detection determination device 70 is a device that performs operation control of the load generation device 60 and state detection and pass / fail determination of the division line 7 based on information sent from the load generation device 60. The detection determination device 70 includes a CPU as a calculation means, a ROM that stores various programs, a RAM that temporarily stores various data such as calculation data and input / output data, and a hard disk that stores calculation data and the like for a long time. Yes. The detection determination device 70 includes an inspection condition storage unit 71, a load control unit 72, a state detection unit 73, a determination reference storage unit 74, a pass / fail determination unit 75, and an inspection result storage unit 76.

  The inspection condition storage unit 71 stores information related to operation control of the load generating device 60 when the division line 7 is inspected. The information related to the operation control includes, for example, operation modes such as an operation order, an operation amount, and an operation speed in the first receiving unit 61 and the second receiving unit 62, the first receiving unit 61 and the second receiving unit. 62, and the like. The information related to the operation control stored in the inspection condition storage unit 71 can be changed as appropriate according to the type of the PTP sheet 1 and the required division.

  The load control unit 72 controls the load generation device 60 so as to always operate in a certain manner based on the information related to the operation control stored in the inspection condition storage unit 71 when the division line 7 is inspected. Is. The load control unit 72 controls the load generating device 60 and the like as follows when the division line 7 is inspected.

  First, the load control unit 72 uses the first holding unit 61 to hold the one side portion of the PTP sheet 1 so that the upper holding piece 61a and the lower holding piece 61b have a predetermined operation speed and a predetermined operation amount. The operation of the first receiving unit 61 is controlled to move closer. Prior to the operation of the first receiving portion 61, the PTP sheet 1 is placed in advance at a certain relative position with respect to the load generating device 60 by the positioning device.

  Next, the load control unit 72 causes the upper support unit 62a and the lower support unit 62b to approach each other by a predetermined operation amount at a predetermined operation speed so that the second receiving unit 62 can grip the other side portion of the PTP sheet 1. The operation of the second receiving unit 62 is controlled to move. The gripping force of the PTP sheet 1 by the second receiving unit 62 is such that the PTP sheet 1 can be displaced along the sheet plane with respect to the second receiving unit 62.

  Next, the load control unit 72 operates the second receiving unit 62 so as to move up and down a predetermined number of times in a predetermined operation mode in order to change the relative positions of the first receiving unit 61 and the second receiving unit 62. To control. As a result, the load that causes the other side portion of the PTP sheet 1 to be bent downward by a predetermined angle α ° (for example, 45 ° or more and less than 90 °) with respect to the one side portion of the PTP sheet 1 and the one side portion On the other hand, a load that causes the other side portion to be bent upward by a predetermined angle α ° is alternately generated a plurality of times at the portion where the dividing line 7 is formed in the PTP sheet 1. In the present embodiment, the load control unit 72 performs the first movement for bending the lower side by an angle α °, the second movement for folding the upper side by an angle α °, and the lower movement by an angle α °. The second receiving unit 62 is controlled so that the third movement and the fourth movement for bending the PTP sheet 1 upward by an angle α ° are performed in this order.

  In the present embodiment, the load generation device 60 is operated as described above according to the information related to the operation control stored in the inspection condition storage unit 71, so that the division line 7 is a PTP sheet 1 in a very good state. The PTP sheet 1 is divided by the dividing line 7 when the second holding unit 62 is moved for the third time.

  Finally, the load control unit 72 separates the upper gripping piece portion 61a and the lower gripping piece portion 61b from the upper corresponding portion 62a and the lower corresponding portion 62b in order to release the gripping of the PTP sheet 1. The operations of the first receiving unit 61 and the second receiving unit 62 are controlled so as to be arranged at the initial position. The inspected PTP sheet 1 released from gripping is loaded into, for example, a sheet collection hopper (not shown).

  The state detection unit 73 is for detecting the state of the dividing line 7 during the generation of a load on the PTP sheet 1 by the load generation device 60. The state detection unit 73 moves from the PTP sheet 1 side based on the load signal sent from the load cell when the second receiving unit 62 is moved to generate a load on the PTP sheet 1 as the state of the dividing line 7. Information on the transition of the load applied to the second holding part 62 is obtained. In the present embodiment, since load signals are sent from a plurality of load cells, the state detection unit 73 obtains information using an average of a plurality of loads obtained from each load signal as information relating to load transition. The information related to the transition of the load may be information using the total value or maximum value of a plurality of loads obtained from each load signal.

  The information related to the transition of the load is, for example, data indicating the relationship between the movement amount of the second holding part 62 and the load applied to the second holding part 62 from the PTP sheet 1 side (see FIGS. 17 to 19). . FIG. 17 shows an example of rough data before and after the timing when the PTP sheet 1 is divided during the third movement of the second holding unit 62, FIG. 18 shows an example of rough data before and after the division occurs when the PTP sheet 1 is divided during the fourth movement of the second holding unit 62. On the other hand, FIG. 19 shows an example of rough data before and after the division when the PTP sheet 1 is divided during the second movement of the second holding unit 62. 17-19, the state of the PTP sheet 1 at the time of each movement of the 2nd receiving part 62 is simply shown in the lower part.

  The determination criterion storage unit 74 stores a determination criterion used when determining the quality of the division line 7. In the present embodiment, the determination criterion storage unit 74 determines, as a determination criterion, whether or not the load threshold relating to the load change amount with respect to the unit movement amount of the second holding unit 62 and the quality relating to the timing at which the division of the PTP sheet 1 has occurred. For example, a numerical value for timing determination is stored. When the PTP sheet 1 is divided by the dividing line 7, the load applied to the second holding part 62 from the PTP sheet 1 side decreases relatively instantaneously. This is used to detect whether or not the PTP sheet 1 is divided. The numerical value for timing determination is compared with the number of movements of the second receiving unit 62 when the PTP sheet 1 is divided, and is used to determine whether the PTP sheet 1 is divided or not. The numerical value for timing determination is appropriately changed depending on the type of the PTP sheet 1 or the like, but is set to “3” in the present embodiment, for example.

  In the present embodiment, the load threshold value is set to a value based on a detection value obtained when the PTP sheet 1 estimated to be non-defective is determined by the operator (operator) by the separability inspection device 50. Has been. More specifically, the load signal sent from the load cell after actually inspecting the PTP sheet 1 manufactured under the same conditions as the PTP sheet 1 determined to be good by the operator by the division property inspection device 50. Based on the above, a load applied to the second receiving portion 62 from the PTP sheet 1 side is detected. And the numerical value based on the variation | change_quantity of the load in the timing when the PTP sheet 1 was divided | segmented is set as a load threshold value. It should be noted that the PTP sheets 1 presumed to be judged as non-defective products by the operator are obtained at different production timings, and the detected values obtained when the PTP sheets 1 are actually inspected by the separability inspection apparatus 50 are obtained. A load threshold value may be determined based on this.

  The pass / fail determination unit 75 determines pass / fail of the division line 7 based on the result detected by the state detection unit 73 and the determination criterion set in the determination criterion storage unit 74. In the present embodiment, the pass / fail determination unit 75 divides the divided line based on the load transition information obtained by the state detection unit 73, the load threshold value stored in the determination reference storage unit 74, and the timing determination numerical value. 7 is judged.

  The pass / fail judgment unit 75 judges pass / fail of the division line 7 as follows. That is, the pass / fail determination unit 75 is a numerical value that satisfies a predetermined condition among the amount of change in the load with respect to the unit movement amount of the second holding unit 62 (for example, based on the information related to the load transition detected by the state detection unit 73 (for example, , The maximum value of the absolute values of the change amounts) is acquired as the determination target value. The predetermined condition may be any condition as long as it is possible to determine the presence or absence of division based on the extracted determination target value.

  Subsequently, the pass / fail determination unit 75 compares the acquired determination target value with the load threshold value stored in the determination reference storage unit 74, and determines whether or not the PTP sheet 1 is divided based on the comparison result. For example, when the acquired determination target value exceeds the load threshold, the pass / fail determination unit 75 determines that the PTP sheet 1 is divided. On the other hand, for example, when the acquired determination target value is equal to or less than the load threshold, the pass / fail determination unit 75 determines that the PTP sheet 1 is not divided. When the PTP sheet 1 is not divided, the quality determination unit 75 determines that the division line 7 is defective.

  When the PTP sheet 1 is divided, the quality determination unit 75 acquires the number of movements of the second holding unit 62 when the division of the PTP sheet 1 occurs from the information related to the load transition. For example, in the example illustrated in FIG. 17, “3” is acquired as the number of movements, and in the example illustrated in FIG. 18, “4” is acquired as the number of movements.

  Then, the pass / fail determination unit 75 compares the acquired number of times of movement with the numerical value for timing determination stored in the determination reference storage unit 74, and from the comparison result, whether or not the division of the PTP sheet 1 has been performed at an appropriate timing. Determine. For example, when the acquired number of movements is equal to the numerical value for timing determination, the pass / fail determination unit 75 determines that the division line 7 is very good in terms of division, assuming that the division of the PTP sheet 1 is performed at the target timing. Judge that there is. For example, when the value obtained by subtracting the numerical value for timing determination from the obtained number of movements is a predetermined numerical value (for example, “1”), the pass / fail determination unit 75 performs the division of the PTP sheet 1 almost at the target timing. Therefore, it is determined that the dividing line 7 is good in terms of the dividing property. On the other hand, for example, when the numerical value for timing determination and the acquired number of movements have a magnitude relationship other than the above, the pass / fail determination unit 75 indicates that the division timing of the PTP sheet 1 is not appropriate and the division line 7 is defective. judge.

  The pass / fail determination unit 75 that determines that the divided line 7 is defective outputs a divided line defect signal to the control device 45. Thereby, the manufacturing operation of the PTP sheet 1 in the PTP packaging machine 11 is urgently stopped by the control device 45.

  The inspection result storage unit 76 includes various types of information related to the inspection of the division line 7 (for example, various types of numerical values obtained for determination and determination regarding the quality of the division line 7) obtained by the quality determination unit 75, and the state detection unit 73. The information about the state of the division line 7 detected by the above is stored. The information stored in the inspection result storage unit 76 can be displayed on a display means such as a liquid crystal screen (not shown).

  Next, the inspection process of the division line 7 by the division property inspection apparatus 50 will be described with reference to the flowchart of FIG. At the start of the inspection process, the upper gripping piece 61a and the lower gripping piece 61b, and the upper corresponding part 62a and the lower corresponding part 62b are each in an initial state separated by a certain distance.

  In the inspection process, first, in step S <b> 11, it is determined whether or not the inspection PTP sheet 1 has arrived at the load generator 60 by the sensor provided in the load generator 60. The process in step S11 is repeatedly performed until the inspection PTP sheet 1 arrives at the load generation device 60. When the PTP sheet 1 arrives at the load generation device 60, the process proceeds to step S12.

  In the positioning step of step S12, the inspection PTP sheet 1 is placed at a predetermined position by the positioning device (see FIG. 7). Next, in the first gripping step of step S13, the upper gripping piece portion 61a and the lower gripping piece portion 61b are moved closer to each other, and the first receiving portion 61 sandwiches the division line 7 to be inspected in the PTP sheet 1. On the other hand, the one side part is gripped (see FIG. 12). Thereby, the PTP sheet 1 having a warp immediately after manufacture is gripped in a state of being corrected to a flat shape by the first receiving portion 61. As a result, the division line 7 to be inspected is linear.

  Next, in the second gripping step of step S14, the upper corresponding portion 62a and the lower corresponding portion 62b are moved closer to each other, and the other part sandwiching the division line 7 to be inspected in the PTP sheet 1 by the second receiving portion 62. The side part is gripped (see FIG. 13). At this time, the gripping force of the PTP sheet 1 by the second receiving unit 62 is set to such an extent that the PTP sheet 1 can be displaced along the sheet plane with respect to the second receiving unit 62 in the subsequent load generation step.

  Next, in the load generation process of step S15, the second receiving portion 62 is moved up and down to bend the PTP sheet 1 alternately upward and downward to generate a load on the PTP sheet 1 (FIGS. 14 and 15). reference). As the load is generated, the PTP sheet 1 may be divided along the dividing line 7 (see FIG. 16). When a load is generated on the PTP sheet 1 due to the movement of the second holding unit 62, a load signal is input from the load cell to the detection determination device 70, and the state detection unit 73 causes the second holding unit 62 from the PTP sheet 1 side. Information on the transition of the load applied to is obtained.

  After the second holding portion 62 has been moved a certain number of times, the upper gripping piece portion 61a and the lower gripping piece portion 61b, and the upper corresponding portion 62a and the lower corresponding portion 62b are separated from each other in the grip release process of step S16. The grip of the PTP sheet 1 is released.

  Subsequently, in step S <b> 17, the pass / fail determination unit 75 determines pass / fail of the split line 7 based on the state of the split line 7 detected by the state detection unit 73 (information relating to load transition). When the dividing line 7 is formed in a very good state or in a good state in terms of splitability (step S17: YES), the test result is stored in the test result storage unit 76, and the process returns to step S11. .

  On the other hand, if the division line 7 is defective, the inspection result and the like are stored in the inspection result storage unit 76, and the process proceeds to the emergency stop process of step S18, and the division line defect signal is output to the control device 45, Return to S11.

  As described above, according to the present embodiment, the load generating device 60 can generate a load on the formation position of the dividing line 7 under a certain condition, and is always aimed at the formation position of the dividing line 7 in the PTP sheet 1. A load can be generated (applied). In addition, the state detection unit 73 and the pass / fail judgment unit 75 also perform detection of the state of the split line 7 during load generation and pass / fail judgment of the split line 7 based on the detected state of the split line 7 under certain conditions. Therefore, it is possible to perform objective detection and pass / fail judgment of the stable divided line 7 that is objective and has no variation. As a result, the inspection accuracy of the dividing line 7 can be dramatically improved.

  Further, the inspection of the dividing line 7 can be automatically performed by the load generating device 60, the state detection unit 73, and the pass / fail determination unit 75 without manual operation. Accordingly, it is possible to prevent the waste of human resources associated with the inspection, and it is possible to reduce the cost relating to production and the like.

  Further, a first receiving portion 61 and a second receiving portion 62 corresponding to both hands are provided, which is generally performed when the PTP sheet 1 is divided when a load is applied to the PTP sheet 1 in the inspection. The movement close to the movement of the user can be reproduced. Thereby, it is possible to perform an inspection assuming actual use, and the inspection accuracy of the dividing line 7 can be further increased.

  In addition, since the PTP sheet 1 is gripped and fixed by the first receiving portion 61, load generation (application) to the PTP sheet 1 can be stably performed, and the inspection accuracy can be more reliably increased. .

  Further, in order to generate a load on the PTP sheet 1 in a state where the second holding unit 62 grips the sheet, the movement of generating a load on the PTP sheet 1 after gripping the PTP sheet 1 with both hands (in this embodiment, The movement close to the PTP sheet 1 with both hands can be reproduced more reliably. Therefore, it is possible to more accurately perform an inspection assuming actual use.

  Further, the first receiving unit 61 can keep the dividing line 7 linear by gripping the PTP sheet 1. Therefore, even after the production of the PTP sheet 1, even when the dividing line 7 is curved, the shape of the dividing line 7 is adjusted to a state corresponding to the state when time has elapsed since the production. Can be tested. Thus, the inspection accuracy can be further improved by performing the inspection while keeping the PTP sheet 1 in a state assumed at the time of actual use.

In addition, based on the detection value obtained when the PTP sheet 1 estimated to be non-defective is actually inspected by the splitting inspection device 50, the determination criterion by the pass / fail determination unit 75 (load threshold in the present embodiment). Is set. Therefore, the determination criterion can be set correctly and easily, and the inspection accuracy can be further improved.
[Second Embodiment]
Next, the second embodiment will be described focusing on differences from the first embodiment. In the first embodiment, when a load is generated on the PTP sheet 1, the relative position relationship between the first receiving unit 61 and the second receiving unit 62 while the PTP sheet 1 is gripped by the second receiving unit 62. Is configured to change. On the other hand, in the second embodiment, as shown in FIGS. 20 to 22, when the load is generated on the PTP sheet 1, the second receiving portion 62 is spaced from the front and back surfaces of the PTP sheet 1. That is, the relative positional relationship between the first receiving unit 61 and the second receiving unit 62 is changed after the PTP sheet 1 is not gripped. More specifically, the second receiving portion 62 moves up and down while keeping the distance between the upper corresponding portion 62a and the lower corresponding portion 62b constant, and the second receiving portion 62 allows the front or back surface of the PTP sheet 1 to be moved. By pressing, a load is generated on the PTP sheet 1.

  As described above, according to the second embodiment, compared to the case where a load is generated on the PTP sheet 1 while the PTP sheet 1 is gripped by the second receiving unit 62, the part where the dividing line 7 is formed on the PTP sheet 1. It is possible to make it difficult to apply compressive force or tensile force. Therefore, the inspection can be performed with a simple load, and the variation in the inspection result due to the occurrence of a complicated load can be suppressed.

Further, since the load is generated in a state where the sheet is not gripped by the second receiving unit 62, it may occur when the load is generated on the PTP sheet 1 while the PTP sheet 1 is gripped by the second receiving unit 62. Load fluctuations due to differences in the surface resistance and gripping position of the PTP sheet 1 can be further suppressed. As a result, the inspection accuracy can be further improved.
[Third Embodiment]
Next, the third embodiment will be described focusing on differences from the first embodiment. In the first embodiment, the load generating device 60 includes a first receiving portion 61 and a second receiving portion 62, and both the receiving portions 61 and 62 are attached to a predetermined base. On the other hand, in the third embodiment, as shown in FIG. 23, the load generating device 80 includes a double arm robot 83 in addition to the first receiving unit 81 and the second receiving unit 82. And both the holding parts 81 and 82 are attached to the double-arm robot 83 as shown in FIG.

  The double-arm robot 83 is an articulated multi-axis robot, and includes a body portion 84 and a right arm portion 85 and a left arm portion 86 provided on both sides of the body portion 84. A first receiving portion 81 is provided at the distal end portion of the right arm portion 85, and a second receiving portion 82 is provided at the distal end portion of the left arm portion 86. In the present embodiment, the right arm portion 85 corresponds to “one arm”, and the left arm portion 86 corresponds to “the other arm”.

  In the third embodiment, the second receiving part 82 has the same configuration as that of the first receiving part 81 and can hold the PTP sheet 1. Moreover, the 1st receiving part 81 and the 2nd receiving part 82 are each provided with the load cell (not shown) for measuring the load (reaction force) added from the PTP sheet 1 side.

  The body portion 84 supports the proximal end portion of the right arm portion 85 (upper right arm portion 85a described below) via the joint portion in the right shoulder portion, and the proximal end portion of the left arm portion 86 via the joint portion in the left shoulder portion. (The upper left arm portion 86a described below) is supported.

  The right arm portion 85 includes an upper right arm portion 85a, a right middle arm portion 85b, and a right lower arm portion 85c that are connected in series with each other via a joint portion. The right arm portion 85c is connected to the right lower arm portion 85c via the joint portion. One holding portion 81 is connected. The left arm portion 86 includes a left upper arm portion 86a, a left middle arm portion 86b, and a left lower arm portion 86c, which are connected in series via joint portions, respectively. The left arm portion 86c is connected to the left lower arm portion 86c via the joint portions. The two receiving portions 82 are connected.

  And the site | part (right arm corresponding | compatible part) from the trunk | drum 84 to the 1st receiving part 81 can be rotated by rotating shaft R1, R2, R3, R4 each extended in parallel, and in each joint part. Bending operation is possible. Further, a portion (left arm corresponding portion) from the body portion 84 to the second receiving portion 82 can be rotated by rotation axes L1, L2, L3, and L4 extending in parallel. Bending operation is possible. By being configured in this way, along the plane orthogonal to the rotation axes R1 to R4 and L1 to L4, the arrangement positions of the first receiving portion 81 and the second receiving portion 82 and the relative positional relationship between them are determined. It can be freely changed within a certain range. Therefore, at the time of inspection of the dividing line 7, for example, the PTP sheet 1 can be bent at 90 ° or more.

  In addition, the load generation device 80 operates in response to an operation instruction from the load control unit 72. The load control unit 72 controls the operation of the load generation device 80 based on the information related to the operation control of the load generation device 80 stored in the inspection condition storage unit 71. In the third embodiment, as the information related to the operation control, the load generation device 80 performs the inspection of the dividing line 7 by a predetermined operator (for example, an operator that is particularly excellent in the accuracy of the division property inspection among a plurality of operators). Information for reproduction (information for reproduction) is stored in the inspection condition storage unit 71, and the load control unit 72 controls the operation of the load generator 80 based on the reproduction information. That is, the operator's actual inspection operation is taught in advance in the inspection condition storage unit 71, and the load control unit 72 always reproduces the taught inspection operation in the same manner by the load generator 80. Note that the reproduction information includes, for example, the operator's operation mode (operation order, operation speed, operation amount, operation timing), gripping force of the PTP sheet 1, and the PTP sheet 1 when the division line 7 is actually inspected. Can be obtained on the basis of data relating to the bending angle of the.

  In the third embodiment, when inspecting the dividing line 7, first, the first receiving portion 81 holds the one side portion sandwiching the dividing line 7 to be inspected in the PTP sheet 1, The second receiving portion 82 grips the other side portion of the PTP sheet 1 with the dividing line 7 interposed therebetween. At this time, the PTP sheet 1 is held in a state in which the dividing line 7 to be inspected is parallel to the rotation axes R1 to R4 and L1 to L4.

  After the PTP sheet 1 is gripped by the first receiving portion 81 and the second receiving portion 82, the PTP sheet 1 is folded back a plurality of times (for example, four times or more) as shown in FIGS. The right arm portion 85 and the left arm portion 86 operate so as to generate a load. At this time, the right arm portion 85 and the left arm portion 86 operate so that the other side portion of the PTP sheet 1 is bent by 90 ° or more with respect to the one side portion of the PTP sheet 1. And the state of the dividing line 7 when the load is applied to the PTP sheet 1 by the state detection unit 73 (for example, the load applied to the first receiving unit 81 and the second receiving unit 82 from the PTP sheet 1 side) Information related to the transition) is detected, and the pass / fail determination unit 75 determines pass / fail of the split line 7 based on the detected state of the split line 7.

  In addition, according to the load generator 80, it is possible to generate a load on the PTP sheet 1 by applying a pulling force in the direction of separating the sheet pieces 6 to the PTP sheet 1. Therefore, such a pulling force may be applied to the PTP sheet 1 during the inspection of the dividing line 7.

As described above, according to the third embodiment, the first receiving unit 81 and the second receiving unit 82 are provided on the right arm unit 85 and the left arm unit 86 of the double-arm robot 83. Therefore, it is possible to easily generate a complicated load such as bending the PTP sheet 1 to a right angle or more, or applying a pulling force in the direction of separating the sheet pieces 6 to the PTP sheet 1, and the degree of freedom for inspection. Can be improved. Further, the actual movement when the user divides the PTP sheet 1 can be reproduced more reliably, and the same inspection as when a human hand is actually used can be performed. Furthermore, since the operation of the operator at the time of inspection is taught, it is possible to reproduce the inspection performed by the operator in the same manner as many times as necessary.
[Fourth Embodiment]
Next, the fourth embodiment will be described focusing on the differences from the first embodiment. In the said 1st Embodiment, it is comprised so that the PTP sheet 1 may be bent and the load may be generated in the PTP sheet 1 by the 2nd receiving part 62 reciprocating up and down. On the other hand, in the fourth embodiment, as shown in FIG. 28, the second receiving portion 64 is configured to be rotatable about a rotation axis AR that overlaps or substantially overlaps the division line 7 to be inspected. ing. Then, as shown in FIGS. 29 and 30, the PTP sheet 1 can be bent to generate a load on the PTP sheet 1 by the rotation of the second receiving portion 64.

  Moreover, in this 4th Embodiment, the site | part located in the rotation path of the 2nd receiving part 64 among the 1st receiving parts 63 is made thin, and the rotation possible range of the 2nd receiving part 64 is made. And the PTP sheet 1 can be bent at a larger angle (for example, 90 ° or more).

As described above, according to the fourth embodiment, when a load is generated on the PTP sheet 1, the distance from the dividing line 7 to the portion of the second receiving portion 64 that holds the PTP sheet 1 is kept constant. be able to. Therefore, it is possible to make it difficult to apply a compressive force or a pulling force to the portion where the dividing line 7 is formed in the PTP sheet 1, and a test with a simple load can be performed. As a result, it is possible to suppress variations in inspection results due to the occurrence of a complicated load.
[Fifth Embodiment]
Next, a fifth embodiment will be described focusing on differences from the first embodiment. In the first embodiment, the second receiving part 62 can be reciprocated up and down, and a load is generated on the PTP sheet 1 by bending the PTP sheet 1 by the reciprocating movement of the second receiving part 62. It is configured to let you. On the other hand, in the fifth embodiment, as shown in FIGS. 31 and 32, the second receiving portion 66 can reciprocate up and down, and the sheet of the PTP sheet 1 by a predetermined servo motor 66e. A rotation axis AX2 extending in a direction orthogonal to the plane is rotatable. Then, the PTP sheet 1 is bent by the reciprocating movement of the second holding portion 66, and the pulling force in the direction of separating the sheet small pieces 6 from each other along the sheet plane by the rotation of the second receiving portion 66 is PTP. Both can be added to the sheet 1. That is, in the fifth embodiment, the PTP sheet 1 can be configured to generate a load along a direction orthogonal to the sheet plane and a load along the sheet plane. The load in the direction along the sheet plane can be said to be a load in the same manner as the load generated when the PTP sheet 1 is shredded so that the sheet pieces 6 are separated from each other along the sheet plane.

  Further, the first receiving portion 65 is rotatable about a rotation axis AX1 extending in a direction perpendicular to the sheet plane of the PTP sheet 1 by a predetermined servo motor 65e. A tensile force can be applied to the PTP sheet 1 by rotating the first receiving portion 65 and the second receiving portion 66 in different directions.

  Furthermore, in the fifth embodiment, when the division line 7 is inspected, the second receiving portion 66 moves back and forth after the PTP sheet 1 is gripped by the first receiving portion 65 and the second receiving portion 66. Thus, after the PTP sheet 1 is folded back a plurality of times (for example, twice), the first receiving portion 65 and the second receiving portion 66 are rotated to apply a tensile force to the PTP sheet 1. Yes. That is, the user's movement assumed when the PTP sheet 1 is cut off is reproduced by pulling and separating the PTP sheet 1 after the PTP sheet 1 is folded several times.

  In addition, in the fifth embodiment, data (servo torque data) relating to rotational torque in the servo motors 65e and 66e is detected together with a load cell (not shown) for detecting a load (reaction force) applied from the PTP sheet 1 side. For this purpose, a torque detection device (not shown) is provided. Then, in addition to the signal related to the load detected by the load cell (load signal), the servo torque data when the tensile force is applied to the PTP sheet 1 is detected by the torque detector. A signal (torque signal) is output.

  The state detection unit 73 is sent from the torque measuring device and information related to the transition of the load applied to the first holding unit 65 and the second holding unit 66 from the PTP sheet 1 side based on the load signal sent from the load cell. It is configured to obtain information related to torque transition based on the torque signal. Then, the pass / fail determination unit 75 determines pass / fail of the division line 7 based on the information regarding the transition of the load and torque obtained by the state detection unit 73 and the determination criterion set in the determination criterion storage unit 74. As a determination criterion, a numerical value corresponding to the bending inspection of the PTP sheet 1 (for example, the load threshold value and the numerical value for timing determination) and a numerical value corresponding to the tensile inspection of the PTP sheet 1 (for example, torque when separation occurs) For example, an appropriate torque value for determining whether or not is appropriate).

  As in the first embodiment, the pass / fail determination unit 75 determines whether the PTP sheet 1 is bent when the PTP sheet 1 is bent based on the information related to the load transition when the PTP sheet 1 is bent and the determination criterion. It is determined whether or not is divided. Furthermore, the pass / fail determination unit 75 determines whether or not the torque (force) required for the division of the PTP sheet 1 is appropriate based on the information related to the torque transition when the tensile force is applied to the PTP sheet 1. Then, the quality of the division line 7 is determined. Specifically, the quality determination unit 75 obtains torque when the PTP sheet 1 is divided based on information related to torque transition. Then, the pass / fail determination unit 75 determines that the division line 7 is defective when the torque required for the division is excessive or small based on the obtained torque and the determination criterion (the appropriate torque value). On the other hand, when the obtained torque is appropriate (for example, when the difference between the obtained torque and the appropriate torque value is equal to or less than a predetermined value), the pass / fail judgment unit 75 determines that the dividing line 7 is very good. Judge that there is.

  As described above, according to the fifth embodiment, not only a load is generated on the PTP sheet 1 by bending the PTP sheet 1, but also a load is generated on the PTP sheet 1 by applying a tensile force to the PTP sheet 1. You can also. Therefore, the load application mode for the PTP sheet 1 can be made more complicated, and the movement of the user when the PTP sheet 1 is divided can be reproduced in more various ways. As a result, it is possible to more accurately perform various inspections assuming actual use. Such an aspect is particularly useful when the dividing line 7 is formed by perforations.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the first embodiment, the PTP sheet 1 is gripped by the first receiving portion 61 so that the shape of the PTP sheet 1 is flat and the dividing line 7 is linear. However, the dividing line 7 does not necessarily have to be linear. For example, in the inspection of the PTP sheet 1 in which the warp exists in the final stage (the stage where it is used), the height of the lower surface of the upper finger portion 61c and the height of the upper surface of the lower finger portion 61d are adjusted. Thus, when the PTP sheet 1 is gripped, the warp of the PTP sheet 1 may be approximately the same as the final warp. In this case, by holding the PTP sheet 1 by the first receiving portion 61, the curved state of the dividing line 7 can be maintained so as to match the degree of bending of the final dividing line 7, and in actual use It is possible to perform a highly accurate inspection assuming the above.

  For example, when the shape of the PTP sheet 1 does not change with time, the PTP sheet 1 may be held while the shape of the PTP sheet 1 is maintained by the first receiving unit. .

  (B) In the above-described embodiment, one division line 7 set in advance among the plurality of division lines 7 is an inspection target. However, two or more division lines 7 may be the inspection target. For example, by repeatedly changing the gripping position of the PTP sheet 1 by the first receiving unit and the second receiving unit in accordance with the division line 7 to be inspected and repeatedly generating a load on the PTP sheet 1 A plurality of division lines 7 may be inspected sequentially.

  (C) In the above embodiment, the second receiving unit generates a load on the PTP sheet 1 while maintaining either the state of gripping the PTP sheet 1 or the state of not gripping the PTP sheet 1 during the inspection of the dividing line 7. It is configured as follows. On the other hand, at the time of the inspection of the dividing line 7, the second holding unit may be configured so that the state in which the PTP sheet 1 is gripped and the state in which the PTP sheet 1 is not gripped can be switched. For example, when the PTP sheet 1 is bent for the first time, the PTP sheet 1 is gripped by the second holding portion, and when the PTP sheet 1 is bent for the second time and thereafter, the PTP sheet 1 is not gripped by the second gripping portion. Also good. By configuring in this way, the manner of applying the load to the PTP sheet 1 can be made more complicated, and the movement of the user when the PTP sheet 1 is divided can be reproduced in more various ways.

  In addition, when comprised as mentioned above, the following inspections can be performed, for example. That is, in the same manner as in the second embodiment, after the second receiving part is in a state where a gap is formed between the front and back surfaces of the PTP sheet 1, that is, the PTP sheet 1 is not gripped, the second receiving part is By reciprocating, the PTP sheet 1 is bent a predetermined number of times (for example, twice). Thereafter, the second receiving portion is moved in a state where the PTP sheet 1 is held by the second receiving portion, and a tensile force (load) along the direction orthogonal to the sheet plane is applied to the PTP sheet 1. The pulling force (load) along the direction orthogonal to the sheet plane is the same as the load generated when the PTP sheet 1 is shredded so that the sheet pieces 6 are separated from each other along the direction orthogonal to the sheet plane. It can be said that the load of the aspect. Finally, the quality of the division line 7 is determined based on the state of the division line 7 during or after the occurrence of the load. This inspection is performed by pressing the PTP sheet 1 and bending the PTP sheet 1 a predetermined number of times, and finally cutting the PTP sheet 1 by separating the sheet pieces 6 from each other along a direction perpendicular to the sheet plane. The movement that the user can take when dividing 1 is assumed.

  Further, as shown in FIGS. 33 and 34 (the first receiving portion is not shown in FIGS. 33 and 34), the second receiving portion 68 is provided only on one edge side of the PTP sheet 1 along the direction of the dividing line 7. You may comprise so that it may hold | grip. By comprising in this way, the test | inspection which reproduced the user's movement of pulling only the one end edge side of the PTP sheet 1 and cutting the PTP sheet 1 can be performed. Therefore, the movement of the user when the PTP sheet 1 is divided can be reproduced in a wider variety.

  (D) The dual arm robot 83 in the third embodiment includes a part from the body part 84 to the first holding part 81 (a right arm corresponding part) and a part from the body part 84 to the second holding part 82 (for the left arm). Are configured to be capable of bending at each joint. However, the configuration of the dual-arm robot is not limited to this, and the configuration of the dual-arm robot may be changed as appropriate.

  For example, as shown in FIG. 35, a portion (right arm corresponding portion) from the body portion 104 to the first holding portion 101 can be bent at the joint portion, and the right arm portion 105 is rotated with respect to the body portion 104, for example. The right arm portion 105a of the right arm portion 105 is rotatable about the rotation axis R6, and the right forearm portion 105b of the right arm portion 105 is rotatable about the rotation axis R7. Thus, the double arm robot 103 may be configured such that the right arm corresponding portion can be rotated around its central axis. Of course, with respect to the left arm portion 106, for example, the left arm portion 106 is rotated with respect to the body portion 104 while allowing a portion (left arm corresponding portion) from the body portion 104 to the second receiving portion 102 to bend at the joint portion. The left upper arm portion 106a of the left arm portion 106 can be turned about the turning shaft L6, and the left forearm portion 106b of the left arm portion 106 can be turned about the turning shaft L7. Thus, the left arm corresponding portion may be configured to be rotatable around its central axis.

  By configuring as described above, the arrangement positions of the first receiving unit 101 and the second receiving unit 102 can be changed more freely, and the degree of freedom related to the inspection of the dividing line 7 can be further improved. it can. Further, the reproducibility of the operation when the PTP sheet 1 is divided by a user such as a user or an operator can be further improved, and the same inspection as when a human hand is actually used can be performed more accurately. .

  (E) In the above embodiment, the PTP sheet 1 is configured to generate a load by changing the relative positional relationship between the first receiving unit and the second receiving unit. It is not limited to this. For example, as shown in FIGS. 36 and 37, a line pressing portion 93 is provided so as to sandwich the division line 7 to be inspected, and the relative positional relationship between the first receiving portion 91 and the second receiving portion 92 is determined. You may comprise so that load may be generated to the PTP sheet 1 by changing the relative positional relationship of the line press part 93 and both the holding parts 91 and 92, without changing. In this case, the quality of the dividing line 7 can be determined based on the load applied to the line pressing portion 93 and the two holding portions 91 and 92.

  (F) In the above-described embodiment, when the division line 7 is inspected, the first receiving portion and the second receiving portion are configured to contact a portion of the PTP sheet 1 that avoids the pocket portion 2. However, as shown in FIG. 38, the first receiving portion 111 and the second receiving portion 112 may be configured to contact a portion of the PTP sheet 1 where the pocket portion 2 is formed. That is, you may comprise so that the site | part in which the pocket part 2 was formed among the PTP sheets 1 may be hold | gripped by the 1st receiving part 111 or the 2nd receiving part 112, or the said part may be pressed. By configuring in this way, when inspecting the PTP sheet 1 in which the force is applied to the portion where the pocket part 2 is formed at the time of division, such as the PTP sheet 1 having a small interval between the pocket parts 2, Assumed inspection can be performed.

  (G) In the above embodiment, the state of the dividing line 7 is configured to detect information related to the transition of the load and torque, but may be configured to detect other information. For example, as a state of the dividing line 7, when a load is generated on the PTP sheet 1, a sound image generated from the PTP sheet 1 and a captured image obtained by imaging a formation position of the dividing line 7 on the PTP sheet 1, a predetermined image Information such as reflected light when the portion of the PTP sheet 1 where the dividing line 7 is formed may be detected.

  In the above embodiment, the state of the dividing line 7 is detected while the load on the PTP sheet 1 is generated. However, the state of the dividing line 7 after the load is generated on the PTP sheet 1 is detected. You may comprise. For example, after a load is generated on the PTP sheet 1 so that the PTP sheet 1 is bent a predetermined number of times at the dividing line 7, a load applied to the second receiving portion 62 from the PTP sheet 1 side or the PTP sheet 1 when the PTP sheet 1 is bent again. Information such as a sound generated at the time may be detected as the state of the dividing line 7. In addition, after a load is generated on the PTP sheet 1, as a state of the division line 7, a captured image obtained by imaging a formation portion of the division line 7 on the PTP sheet 1 and a predetermined light are used as the division line 7 on the PTP sheet 1. Information such as the presence or absence of reflected light and the intensity of the reflected light may be detected when the formation location of the film is irradiated. In addition, a load is repeatedly generated on the PTP sheet 1 until the PTP sheet 1 is divided, and the state of the dividing line 7 is generated on the PTP sheet 1 until the generation of the load on the PTP sheet 1 is completed. Information corresponding to the total load amount (for example, the total movement amount of the second holding unit until the PTP sheet 1 is divided) may be detected.

  (H) In the first embodiment and the like, the first receiving unit is configured to hold and fix the PTP sheet 1 and not move when a load is applied to the PTP sheet 1. You may comprise so that a 1st receiving part may also move when a part moves. For example, the first receiving unit may be configured to move in the direction opposite to the moving direction of the second receiving unit when a load is generated on the PTP sheet 1.

  (I) In the above-described embodiment, one arbitrarily selected from the manufactured PTP sheet 1 is subjected to the inspection of the dividing line 7. On the other hand, the PTP sheet 1 determined to be defective by the pre-seal inspection device 22 or the post-seal inspection device 29 may be preferentially used for the inspection of the dividing line 7. That is, the PTP packaging machine 11 has an inspection device (pre-seal inspection device 22 or post-seal inspection device 29) that inspects one or a plurality of elements other than the division line 7, and the division property inspection device 50 includes the inspection. You may comprise so that the division | segmentation line 7 of the PTP sheet 1 determined to be unsatisfactory by the apparatus may be inspected. In this case, it is possible to more reliably prevent the non-defective PTP sheet 1 from being wasted along with the inspection of the dividing line 7 and to suppress an increase in production cost.

  (I) In the above embodiment, the PTP sheet 1 is cited as the sheet. However, the sheet may be any sheet as long as it contains a predetermined content and has a dividing line for dividing the sheet into small pieces. Therefore, for example, the sheet may be a blister sheet other than the PTP sheet.

  (J) Although the tablet 5 is mentioned as the contents in the above embodiment, the contents are not limited to this. Thus, for example, the contents may be capsules, foods, liquids (for example, disposable eye drops), daily necessities (for example, disposable contact lenses), and the like.

  DESCRIPTION OF SYMBOLS 1 ... PTP sheet (sheet), 5 ... Tablet (contents), 6 ... Sheet piece, 7 ... Dividing line, 10 ... Sheet manufacturing system, 11 ... PTP packaging machine (sheet manufacturing apparatus), 50 ... Divisibility inspection apparatus, 60, 80 ... load generating device (load generating means), 61, 63, 65, 91, 101, 111 ... first receiving part, 62, 64, 66, 92, 102, 112 ... second receiving part, 73 ... state detection unit (state detection unit), 75 ... pass / fail determination unit (pass / fail determination unit), 83, 103 ... double-arm robot, 85, 105 ... right arm (one arm), 86, 106 ... left arm (the other arm).

Claims (7)

A separability inspection apparatus for inspecting a dividing line for dividing a sheet into predetermined sheet pieces formed on a sheet containing predetermined contents,
Load generating means for generating a load on the formation position of the dividing line in the sheet;
State detection means for detecting the state of the divided line during generation of a load on the sheet by the load generation means or after generation of the load;
A separability inspection apparatus comprising: a quality determination unit that determines the quality of the division line based on a result detected by the state detection unit and a predetermined criterion. The load generating means includes
A first receiving part configured to be in contact with one side part of the sheet with the dividing line interposed therebetween;
It has a second receiving portion that is configured to be in contact with the other side portion of the sheet, with the other side portion sandwiching the dividing line,
While changing the relative positional relationship between the first receiving portion and the second receiving portion while bringing the first receiving portion and the second receiving portion into contact with the sheet, a load is applied to the formation location. The splittability inspection apparatus according to claim 1, wherein:   The first holding portion is in a state where the one side portion of the sheet is gripped and the sheet is fixed, and the second receiving portion grips the sheet, or a gap is formed from both the front and back surfaces of the sheet. The load is applied to the formation location by changing the relative positional relationship between the first receiving portion and the second receiving portion. The division property inspection apparatus according to claim 2.   The first receiving unit is configured to be able to keep the dividing line in a predetermined state by gripping the sheet while maintaining the shape of the sheet or changing the shape. The division | segmentation test | inspection apparatus of Claim 3 characterized by these. The load generating means includes a double-arm robot,
The first receiving unit is provided on one arm of the double-arm robot, and the second receiving unit is provided on the other arm of the double-arm robot. The division property inspection apparatus according to any one of 4.   6. The method according to claim 1, wherein the determination criterion is based on a detection value obtained when the sheet, which is estimated to be determined as a non-defective product by an operator, is actually inspected. 2. Divisibility inspection device described in 1. A sheet manufacturing apparatus for manufacturing a sheet containing a predetermined content and forming a division line for dividing the predetermined content into small pieces,
A sheet manufacturing system comprising: a splitting inspection device that inspects the split line of the sheet manufactured by the sheet manufacturing device according to any one of claims 1 to 6.

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