WO2022176672A1 - 透明可食体のマーキング検査装置およびマーキング装置 - Google Patents
透明可食体のマーキング検査装置およびマーキング装置 Download PDFInfo
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- WO2022176672A1 WO2022176672A1 PCT/JP2022/004665 JP2022004665W WO2022176672A1 WO 2022176672 A1 WO2022176672 A1 WO 2022176672A1 JP 2022004665 W JP2022004665 W JP 2022004665W WO 2022176672 A1 WO2022176672 A1 WO 2022176672A1
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- Prior art keywords
- marking
- unit
- transparent
- inspection
- imaging
- Prior art date
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- 238000007689 inspection Methods 0.000 title claims abstract description 70
- 238000003384 imaging method Methods 0.000 claims abstract description 74
- 239000002775 capsule Substances 0.000 claims description 78
- 238000005286 illumination Methods 0.000 claims description 65
- 239000000463 material Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 2
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- 238000010586 diagram Methods 0.000 description 6
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000007902 hard capsule Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
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Images
Classifications
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- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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Definitions
- the present invention relates to a marking inspection device and a marking device for transparent edible objects.
- Patent Document 1 the configuration disclosed in Patent Document 1 is known as a device that can mark edible substances such as medicines and foods.
- This marking device includes transport means for transporting an edible body such as a tablet or capsule, detection means for capturing an image of the edible body to acquire direction data, marking means for forming a marking pattern on the edible body, and marking inspection means for inspecting the marking pattern formed on the food.
- the marking inspection means includes an irradiation section and an imaging section, and is configured such that, when imaging the edible body with the imaging section, reflected illumination is performed by the irradiation section from the same side as the imaging section.
- an object of the present invention is to provide a marking inspection device for a transparent edible body that can accurately inspect a marking pattern formed on the transparent edible body, and a marking device equipped with the same.
- the object of the present invention is to provide a conveying unit that conveys a transparent edible object having a marking pattern formed thereon along a linear conveying path, and an inspection imaging device that images the transparent edible object conveyed along the conveying path.
- a transparent edible marking inspection device comprising: an inspection imaging unit for acquiring data; and a control unit for determining the quality of the marking pattern based on the inspection imaging data, wherein the inspection imaging unit comprises: A camera arranged so that the imaging direction is orthogonal to the transport path, a reflection illumination unit arranged on the same side of the transport path as the camera, and an opposite side of the transport path to the camera. This is achieved by a transparent edible marking inspection device comprising a transillumination section and a transillumination section.
- the reflected illumination unit includes a ring illumination, a first polarizing plate disposed between the ring illumination and the transport path, and a camera between the camera and the transport path. and a second polarizing plate having a polarizing axis perpendicular to that of the first polarizing plate. It is preferable that the reflective lighting unit further includes a polarizing plate driving unit that moves the second polarizing plate.
- control unit performs transmitted illumination by the transmitted illumination unit when the transparent edible material is colorless and transparent, and performs reflected illumination by the reflected illumination unit when the transparent edible material is colored and transparent.
- the control unit extracts a marking area according to the attitude of the capsule specified by the outline of the capsule in the imaging data for inspection, extracts marking pattern data from the marking area, and compares the marking pattern data with reference pattern data to obtain the It is preferable to determine whether the marking pattern is good or bad.
- the object of the present invention is a transparent edible marking apparatus comprising the above-described marking inspection apparatus for transparent edible material, wherein the transparent edible material conveyed on the conveying path is subjected to the inspection method.
- a transparent edible marking device having a marking section that forms a marking pattern on the upstream side of the imaging section in the conveying direction.
- the marking part is preferably marked by irradiating a laser.
- a transparent edible body marking inspection device capable of accurately inspecting a marking pattern formed on a transparent edible body, and a marking device equipped with the same.
- FIG. 1 is a schematic front view of a transparent edible marking device according to an embodiment of the present invention
- FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1
- 2 is a plan view showing a main part of the transparent edible marking device shown in FIG. 1
- FIG. 2 is a plan view showing another essential part of the transparent edible marking device shown in FIG. 1
- FIG. 2 is a block diagram of the transparent edible marking device shown in FIG. 1
- FIG. FIG. 2 is a diagram for explaining the operation of the transparent edible marking device shown in FIG. 1
- 3 is a diagram for explaining another operation of the transparent edible marking device shown in FIG. 1
- FIG. 3 is a diagram for explaining still another operation of the capsule marking device shown in FIG. 1
- FIG. 3 is a diagram for explaining still another operation of the capsule marking device shown in FIG. 1;
- FIG. 3 is a diagram for explaining still another operation of the capsule marking device shown in FIG. 1;
- FIG. 3 is a diagram for explaining still another
- FIG. 1 is a schematic front view of a transparent edible marking device (hereinafter simply referred to as “marking device”) according to an embodiment of the present invention.
- the marking apparatus 1 includes a transparent edible body marking inspection device (hereinafter simply referred to as "marking inspection device") 100 that inspects a marking pattern formed on a transparent edible body.
- the marking inspection apparatus 100 includes a conveying section 2 and an inspection imaging section 30 .
- a transparent edible body is a transparent edible body such as a transparent soft capsule, a hard capsule, or a solid food, and may be colorless and transparent or colored and transparent. In this embodiment, a transparent edible body made of a transparent capsule will be described as an example.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 is a plan view of the main parts of the conveying section 2 shown in FIG.
- the transport section 2 includes a first transport device 10 and a second transport device 20.
- the first transport device 10 includes a hat-shaped disc 11 , an intermediate ring 12 accommodating the disc 11 , and a rotating ring 13 accommodating the intermediate ring 12 .
- the rotating shaft 12a of the intermediate ring 12 is arranged so as to be slightly inclined with respect to the rotating shafts 11a and 13a.
- the rotary shafts 11a, 12a and 13a are connected to individually provided drive sources such as motors (not shown) via reduction gears 11b, 12b and 13b, respectively, and rotate the disk 11, the intermediate ring 12 and the rotary shaft 11a, 12a and 13a.
- Each ring 13 can be driven to rotate independently.
- Conveying surfaces 12c and 13c are formed along the circumferential direction on the upper portions of the intermediate ring 12 and the rotating ring 13, respectively.
- the conveying surface 13c of the rotating ring 13 is covered with a ring-shaped projection 13d on the radially outer side.
- the second conveying device 20 includes a first pulley 21 and a second pulley 22 having horizontally arranged rotating shafts 21a and 22a, and an endless belt body wound around the first pulley 21 and the second pulley 22. 23 and a guide member 24 arranged along the conveying direction of the belt body 23 .
- the diameter of the second pulley 22 is smaller than the diameter of the first pulley 21 .
- a linear portion of the belt body 23 positioned between the first pulley 21 and the second pulley 22 is horizontally arranged above the first pulley 21 and the second pulley 22 to form a linear conveying path 2a. On the other hand, it is inclined below the first pulley 21 and the second pulley 22 .
- the first pulley 21 is configured by connecting two discs 21b and 21c with a space therebetween by a rotating shaft 21a.
- the second pulley 22 also includes two discs spaced apart from each other and connected by a rotating shaft 22a.
- the first pulley 21 is a driving pulley connected to a driving motor (not shown) and the second pulley 22 is a driven pulley. It may be a drive pulley.
- the belt body 23 includes two strip-shaped conveying belts 23a and 23b, which are wound around discs 21b and 21c of the first pulley 21, respectively. Between the two conveying belts 23a and 23b, an opening 23c consisting of a minute gap is formed over the entire circumference of the belt body 23. As shown in FIG.
- the conveying belts 23a and 23b can be formed of flat belts made of a soft material such as silicon rubber, for example, but V-belts, toothed belts, or the like may also be used.
- the guide member 24 includes a straight portion 24a arranged in the vicinity of the belt body 23 extending horizontally along the conveying path 2a between the first pulley 21 and the second pulley 22, and a straight portion 24a.
- Arc portions 24b and 24c are provided on both sides of the portion 24a in the conveying direction.
- Each circular arc portion 24b, 24c is inserted between two discs provided in the first pulley 21 and the second pulley 22, respectively, and along the belt body 23 wound around the first pulley 21 and the second pulley 22. It is formed to be curved in an arc shape.
- the guide member 24 is formed in a hollow cylindrical shape. is formed.
- the inside of the guide member 24 can be evacuated by the operation of a vacuum pump (not shown), and the capsules C are sucked into the suction unit 25 through the openings 23c of the belt body 23, thereby removing the capsules C from the belt. It can be conveyed together with the belt body 23 in a state of being adsorbed to the body 23 .
- the opening 23c of the belt body 23 of the present embodiment is formed continuously along the longitudinal direction between the two conveying belts 23a and 23b. Circular, elliptical, or slit-shaped openings may be intermittently formed along the longitudinal direction of the belt.
- FIG. 4 is an enlarged plan view showing the vicinity of the transport path 2a in FIG.
- the inspection imaging section 30 includes a camera 31 , a reflected illumination section 32 and a transmitted illumination section 33 .
- the camera 31 is composed of a CCD area camera, a CCD line camera, or the like, and is arranged so that the imaging direction is perpendicular to the conveying path 2a in a plan view. Image is taken in the horizontal direction along the
- the imaging direction of the camera 31 is preferably substantially parallel to the upper surface of the belt body 23. However, when the lowermost portion of the capsule C enters the opening 23c of the belt body 23, the imaging direction of the camera 31 is oblique from above the belt body 23. You may image below.
- the angle between the imaging direction of the camera 31 and the upper surface of the belt member 23 can be set within a range of 0 to 15 degrees.
- the reflected illumination unit 32 is arranged on the same side as the camera 31 with respect to the transport path 2a, and illuminates the capsule C from the same side as the camera 31 with a white LED or the like.
- the reflected illumination unit 32 of this embodiment includes a ring illumination 32a capable of uniformly illuminating the entire periphery of the capsule C, a first polarizing plate 32b, and a second polarizing plate 32c.
- the illumination light of the ring illumination 32a may be infrared light or the like in addition to visible light.
- the first polarizing plate 32b is formed in a ring shape and arranged in the vicinity of the ring illumination 32a.
- the capsule C is irradiated with linearly polarized light.
- the second polarizing plate 32c is arranged near the camera 31 so as to cover the lens portion of the camera 31, and is interposed between the camera 31 and the transport path 2a so that the light reflected from the surface of the capsule C passes through. and observed by the camera 31 .
- the second polarizing plate 32c is arranged so that its polarizing axis is orthogonal to the polarizing axis of the first polarizing plate 32b.
- the second polarizing plate 32c is configured to be movable by a polarizing plate driving section 32d such as an actuator.
- the second polarizing plate 32c By rotating the driving shaft of the polarizing plate driving section 32d, the second polarizing plate 32c is shown by a two-dot chain line in FIG.
- the plate 32 c can be retracted from the front of the camera 31 .
- the polarizing plate driving section 32 d may be configured to move the second polarizing plate 32 c linearly and retreat from the front of the camera 31 .
- the transmitted illumination section 33 is arranged on the side opposite to the camera 31 with respect to the transport path 2a, and illuminates the capsule C from the side opposite to the camera 31 with a white LED or the like.
- the transmitted illumination unit 33 of this embodiment is a surface light source in which a plurality of light emitting elements are arranged in a matrix.
- the illumination light of the transmission illumination unit 33 may be infrared rays or the like in addition to visible light.
- the operations of the conveying section 2 and the inspection imaging section 30 included in the marking inspection apparatus 100 are controlled by the control section 70 .
- the marking device 1 of this embodiment includes a marking unit 40, a marking imaging unit 50, and a detachment unit 60 in addition to the marking inspection device 100 described above.
- the marking unit 40, the imaging unit for marking 50, and the detachment unit 60 are provided upstream of the imaging unit for inspection 30 in the transport direction in the vicinity of the transport path 2a.
- the operations of the marking unit 40 , the imaging unit for marking 50 and the detachment unit 60 are controlled by the control unit 70 .
- the marking unit 40 is a laser marking device, and can perform marking by heating and denaturing the surface of the capsule C conveyed to a predetermined position by scanning a laser spot.
- a CO 2 (carbon dioxide gas) laser beam suitable for marking transparent edible objects can be preferably exemplified, but other laser beams capable of forming markings on the surface of transparent materials can also be used. It may be light.
- the type of laser light is UV laser light. It's okay.
- the marking unit 40 preferably converts the coordinate data in the reference coordinate system into the coordinate data in the processing coordinate system so that marking can be performed according to the posture of the capsule C without moving or rotating the capsule C.
- the marking imaging section 50 is arranged on the upstream side of the marking section 40 in the transport direction, and includes a camera 51, a reflected illumination section 52, and a transmitted illumination section 53, similarly to the inspection imaging section 30.
- the reflected illumination section 52 includes a ring illumination 52a, a first polarizing plate 52b, a second polarizing plate 52c, and a polarizing plate driving section 52d. Since the configuration and arrangement of each element of the imaging section for marking 50 are the same as the configuration and arrangement of each element of the imaging section for inspection 30, detailed description thereof will be omitted.
- the detachment unit 60 is arranged between the marking imaging unit 50 and the marking unit 40 in the vicinity of the transport path 2a. Capsules C can be selectively removed from the transport path 2a.
- the specific configuration of the detachment unit 60 is not particularly limited, and may be, for example, a pusher or the like that physically presses the capsule C on the transport path 2a to detach it from the transport path 2a.
- Capsules C separated from the conveying path 2a by the operation of the separating section 60 drop directly or via a shooter (not shown) onto the first conveying device 10 arranged below the conveying path 2a, and are directed toward the conveying path 2a. transported again.
- the operation of the marking device 1 having the above configuration will be described.
- the capsules C receive centrifugal force and the intermediate ring 12 to the conveying surface 13c of the rotating ring 13 via the conveying surface 12c.
- the capsules C can be aligned in a line on the conveying surface 13c and conveyed in the rotating direction of the rotating ring 13 (direction of arrow D1 in FIG. 3).
- the rotational speeds of the disk 11, the intermediate ring 12 and the rotating ring 13 are preferably set so that the rotational speed of the disk 11 is the slowest and the rotational speed of the rotating ring 13 is the fastest. can promote reliable alignment and transportation of the capsules C.
- the first conveying device 10 may be configured to align the capsules C on the conveying surface 13c of the rotating ring 13 and convey them in the rotating direction of the rotating ring 13.
- the disk 11 and the rotating A configuration in which the respective rotation axes of the ring 13 are inclined with respect to each other and the capsules C supplied on the disk 11 are moved directly to the conveying surface 13c of the rotation ring 13 may be employed.
- the rotating shaft 13a of the rotating ring 13 is arranged along the vertical direction as in the present embodiment, it may be arranged so as to extend in the vertical direction. You may
- the capsules C aligned and conveyed toward the second conveying device 20 by the first conveying device 10 are successively sucked by the belt body 23 in the vicinity of the lower portion of the first pulley 21 by the suction of the suction unit 25, and lifted to the sucked state. It is conveyed linearly in the direction of arrow D2 in FIG. In this way, the capsules C aligned by the first transporting device 10 are transported along the linear transport path 2a while maintaining the aligned state by the second transporting device 20. As shown in FIG.
- the conveying direction of the rotating ring 13 and the conveying direction of the belt member 23 match as in the present embodiment, so that the capsules C are transferred. delivery can be ensured.
- the conveying speed of the capsules C by the belt member 23 faster than the conveying speed of the capsules C by the rotating ring 13, the alignment pitch of the capsules C aligned and conveyed by the belt member 23 can be widened.
- the side of the capsule C conveyed on the conveying path 2a is imaged when passing through the imaging unit 50 for marking, and imaged data for marking is acquired.
- the control unit 70 sets a marking area on the capsule C based on the imaging data for marking, and performs marking by controlling the operation of the marking unit 40 .
- coordinate data of a marking pattern composed of characters, numbers, symbols, figures, etc., or a combination of these in a reference coordinate system is stored in advance in a memory.
- the control unit 70 converts the coordinate data in the reference coordinate system into the coordinate data in the processing coordinate system so that the marking pattern is formed along the marking area set according to the posture of the capsule C, and performs this processing. Drive control of the laser spot of the marking unit 40 is performed in the coordinate system.
- the capsule C on which the marking pattern is formed is transported along the transport path 2a toward the inspection imaging unit 30, and when passing through the inspection imaging unit 30, the side surface including the marking area is imaged, and the inspection imaging is performed. Data is obtained.
- the control unit 70 determines whether the marking pattern in the marking area is good or bad based on the imaging data for inspection.
- the control unit 70 turns on the transmission illumination unit 33 and turns off the reflection illumination unit 32, as shown in FIG.
- the illumination unit 33 illuminates the capsule C.
- colorless and transparent as used herein is not necessarily limited to completely colorless and transparent, but also includes slightly colored but sufficiently highly transparent and translucent cases.
- a portion of the illumination light from the transmission illumination unit 33 passes through the capsule C and enters the camera 31. Therefore, in the imaging data for inspection, an outline appears due to the refraction of light at the periphery of the capsule C, and the capsule C A portion corresponding to the marking pattern formed on the surface of the image appears as a shadow.
- the transmissive illumination unit 33 it is preferable to operate the polarizing plate driving unit 32d to retract the second polarizing plate 32c from the front of the camera 31 in order to suppress a decrease in the amount of illumination light.
- Illuminate capsule C when the capsule C is colored and transparent, as shown in FIG. Illuminate capsule C. Illumination light emitted from the ring illumination 32a of the reflected illumination unit 32 is linearly polarized by the first polarizing plate 32b and is applied to the capsule C. incident on Since the polarizing axis of the second polarizing plate 32c is perpendicular to the polarizing axis of the first polarizing plate 32b, reflection of illumination due to specularly reflected light on the surface of the capsule C is removed, and only the diffusely reflected light is reflected by the camera. 31. Therefore, it is possible to effectively suppress the shininess of the surface of the colored and transparent capsule C, and obtain imaging data for inspection in which the contour and marking of the capsule C are clear.
- Whether the capsule C is colorless and transparent or colored and transparent can be determined by the operator himself/herself and input to the control unit 70 .
- the imaging data for inspection obtained under the respective conditions of reflected illumination by the reflected illumination unit 32 and transmitted illumination by the transmitted illumination unit 33 are compared with each other to determine whether the capsule C is colorless and transparent or colored and transparent. can be determined.
- the illumination light transmittance of the capsule C is measured, and if the illumination light transmittance is equal to or greater than the threshold value, the capsule is colorless and transparent. It can also be configured to
- the setting of the marking area for the capsule C in the imaging data for inspection is performed based on the attitude of the capsule C conveyed on the conveying path 2a.
- the capsule C on the belt body 23 is normally attracted to the belt body 23 in the most stable posture.
- the capsule C may be attracted to the belt body 23 in a slightly standing posture.
- the control unit 70 preliminarily stores contours and marking areas corresponding to various postures of the capsule C, and compares the contours included in the imaging data for inspection to obtain the contours shown in FIGS. 7(a) and 7(b).
- the marking area M corresponding to the orientation of the capsule C can be extracted.
- the marking area M of the capsule C can also be specified by comparing the contour of the capsule C included in the imaging data for inspection with a reference contour and calculating the rotation angle with respect to the reference contour.
- the posture of the transparent edible object such as Capsule C is specified based on the position and orientation of characteristic shapes that appear on the surface of the transparent edible object, such as secant lines and markings, in addition to the outline of the transparent edible object.
- Reference pattern data corresponding to the marking pattern is stored in advance in the memory unit of the control unit 70. By extracting the marking pattern data from the marking area of the imaging data for inspection and comparing it with the reference pattern data, , to determine whether the marking pattern is good or bad.
- a method of comparing the marking pattern data and the reference pattern data is not particularly limited, and for example, the comparison can be based on area, shape, or the like.
- comparing the marking pattern data and the reference pattern data by area for example, it is determined whether or not the absolute value of the difference between the two areas is within the threshold. can be determined as defective. More specifically, by using a binarization algorithm, it is possible to regard pixels having a predetermined brightness or more from within the image as markings, and compare areas based on the number of extracted pixels.
- comparing the marking pattern data and the reference pattern data by shape for example, it is determined whether or not the matching rate when the two are superimposed is higher than a threshold value. can be determined as defective.
- the contour shape of the marking pattern is model-registered in advance by geometric pattern matching, and the degree of similarity between the search result image obtained by the model search in the image and the model image is used as the matching rate for marking. It is possible to determine whether the pattern is good or bad. Further, it is possible to determine whether the marking pattern is good or bad by combining the area comparison and the shape comparison.
- control unit 70 controls the operation of the sorting damper 80 to sort the capsules C for which the quality of the marking pattern has been determined into a good product box 81 and a defective product box 82 .
- the inspection imaging unit 30 detects the orientation and marking of the transparent edible object. Since inspection imaging data with a clear pattern can be obtained, the marking pattern can be inspected with high accuracy.
- the illumination conditions in the imaging unit for marking 50 is the same as the illumination conditions in the imaging unit for inspection 30.
- the imaging unit for inspection 30 performs reflected illumination by the reflected illumination unit 32
- the imaging unit for marking In 50 reflected illumination is performed by the reflected illumination unit 52
- transmitted illumination is performed by the transmitted illumination unit 33 in the imaging unit 30 for inspection
- reflected illumination by the transmitted illumination unit 53 is performed in the imaging unit 50 for marking.
- imaging data for marking in which the orientation of the capsule C is clear, like the imaging data for inspection.
- a region can be set.
- a transparent edible body consisting of a capsule may have a seam on the surface. visibility may be affected.
- the control unit 70 determines whether or not a seam exists in the marking area set in the imaging data for marking, and if a seam exists, calculates the size of the seam. Since the positions of the seams on the surface of the capsules C conveyed along the conveying path 2a are random, if the seams S do not overlap the marking regions M as shown in FIG. On the other hand, if the seam S overlaps the marking area M as shown in FIG. 8(b), the visibility of the marking may deteriorate.
- the control unit 70 operates the detachment unit 60 at the timing when the capsule C passes through the detachment unit 60 to C is separated from the conveying path 2a.
- Capsules C separated from the conveying path 2a drop onto the first conveying device 10 and are conveyed toward the conveying path 2a, and the first imaging step is performed again.
- the capsules C separated from the conveying path 2a may be collected in a container or the like, or may be supplied to the first conveying device 10 after a certain amount of capsules C are stored.
- the size of the seam S in the marking region M can be, for example, the area ratio of the seam in the marking region M. good.
- control unit 70 allows the capsule C to pass through without operating the detachment unit 60, and marks the capsule C at the timing when the capsule C is conveyed to the marking unit 40. I do.
- the capsule C on which the marking pattern is formed is inspected for the marking pattern by the marking inspection apparatus 100 as described above.
- the quality of the marking pattern can be determined based on the image data for inspection as described above. Therefore, the quality of the marking pattern is determined by the difference data between the marking imaging data acquired by the marking imaging unit 50 and the inspection imaging data acquired by the inspection imaging unit 30. Based on that, you can go.
- the control unit 70 performs inspection imaging shown in FIG. 9(b).
- the difference data of the marking area M shown in FIG. 9C can be obtained.
- the differential data shown in FIG. 9(c) a portion corresponding to the seam S shown in FIG. 9(a) is missing from the marking pattern P, but the size of the seam S adversely affects the visibility of the marking pattern P. Since the size is less than the predetermined standard that does not give a
- Marking device for transparent edible material Conveying unit 2a Conveying path 30 Imaging unit for inspection 31 Camera 32 Reflection illumination unit 32a Ring illumination 32b First polarizing plate 32c Second polarizing plate 32d Polarizing plate driving unit 33 Transmissive illumination unit 40 Marking unit 50 marking imaging unit 60 detachment unit 70 control unit 100 marking inspection device for transparent edible body C capsule (transparent edible body) M marking area
Abstract
Description
2 搬送部
2a 搬送路
30 検査用撮像部
31 カメラ
32 反射照明部
32a リング照明
32b 第1偏光板
32c 第2偏光板
32d 偏光板駆動部
33 透過照明部
40 マーキング部
50 マーキング用撮像部
60 離脱部
70 制御部
100 透明可食体のマーキング検査装置
C カプセル(透明可食体)
M マーキング領域
Claims (7)
- マーキングパターンが形成された透明可食体を直線状の搬送路に沿って搬送する搬送部と、前記搬送路を搬送される透明可食体を撮像して検査用撮像データを取得する検査用撮像部と、前記検査用撮像データに基づいて前記マーキングパターンの良否を判別する制御部とを備える透明可食体のマーキング検査装置であって、
前記検査用撮像部は、撮像方向が前記搬送路と直交するように配置されたカメラと、前記搬送路に対して前記カメラと同じ側に配置された反射照明部と、前記搬送路に対して前記カメラと反対側に配置された透過照明部とを備える透明可食体のマーキング検査装置。 - 前記反射照明部は、リング照明と、前記リング照明と前記搬送路との間に配置された第1偏光板と、前記カメラと前記搬送路との間に配置されて偏光軸が前記第1偏光板の偏光軸と直交する第2偏光板とを備える請求項1に記載の透明可食体のマーキング検査装置。
- 前記反射照明部は、前記第2偏光板を移動させる偏光板駆動部を更に備える請求項2に記載の透明可食体のマーキング検査装置。
- 前記制御部は、透明可食体が無色透明の場合に前記透過照明部による透過照明を行い、透明可食体が有色透明の場合に前記反射照明部による反射照明を行う請求項1から3のいずれかに記載の透明可食体のマーキング検査装置。
- 前記制御部は、前記検査用撮像データにおけるカプセルの輪郭により特定したカプセルの姿勢に応じてマーキング領域を抽出し、前記マーキング領域からマーキングパターンデータを抽出して基準パターンデータと比較することにより、前記マーキングパターンの良否を判別する請求項1から4のいずれかに記載の透明可食体のマーキング検査装置。
- 請求項1から5のいずれかに記載の透明可食体のマーキング検査装置を備える透明可食体のマーキング装置であって、
前記搬送路を搬送される透明可食体に対して、前記検査用撮像部の搬送方向上流側でマーキングパターンを形成するマーキング部を備える透明可食体のマーキング装置。 - 前記マーキング部は、レーザを照射してマーキングを行う請求項6に記載の透明可食体のマーキング装置。
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US18/264,972 US20240053277A1 (en) | 2021-02-16 | 2022-02-07 | Marking inspection device and marking device for transparent edible objects |
KR1020237017460A KR20230142445A (ko) | 2021-02-16 | 2022-02-07 | 투명가식체의 마킹검사장치 및 마킹장치 |
EP22755993.7A EP4293345A1 (en) | 2021-02-16 | 2022-02-07 | Marking inspection device on transparent edible body and marking device |
JP2023500737A JPWO2022176672A1 (ja) | 2021-02-16 | 2022-02-07 |
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2022
- 2022-02-07 WO PCT/JP2022/004665 patent/WO2022176672A1/ja active Application Filing
- 2022-02-07 US US18/264,972 patent/US20240053277A1/en active Pending
- 2022-02-07 JP JP2023500737A patent/JPWO2022176672A1/ja active Pending
- 2022-02-07 KR KR1020237017460A patent/KR20230142445A/ko unknown
- 2022-02-07 EP EP22755993.7A patent/EP4293345A1/en active Pending
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JPH07151694A (ja) * | 1993-11-30 | 1995-06-16 | Electroplating Eng Of Japan Co | 外観検査装置 |
JPH08271433A (ja) * | 1995-03-30 | 1996-10-18 | Nikon Corp | 錠剤検査装置 |
JPH10282014A (ja) * | 1997-04-10 | 1998-10-23 | Mitsui Chem Inc | 偏光板付き表面欠陥検出装置 |
JP2002071573A (ja) * | 2000-09-01 | 2002-03-08 | Daihatsu Motor Co Ltd | 塗布状態検査方法およびその装置 |
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JP2018186962A (ja) * | 2017-04-28 | 2018-11-29 | 株式会社Screenホールディングス | 画像取得装置、検査装置、錠剤印刷装置、および画像取得方法 |
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JPWO2022176672A1 (ja) | 2022-08-25 |
KR20230142445A (ko) | 2023-10-11 |
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