WO2012035608A1 - Cigarette inspection device - Google Patents

Cigarette inspection device Download PDF

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Publication number
WO2012035608A1
WO2012035608A1 PCT/JP2010/065791 JP2010065791W WO2012035608A1 WO 2012035608 A1 WO2012035608 A1 WO 2012035608A1 JP 2010065791 W JP2010065791 W JP 2010065791W WO 2012035608 A1 WO2012035608 A1 WO 2012035608A1
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WO
WIPO (PCT)
Prior art keywords
cigarette
cigarettes
bundle
axial direction
line
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PCT/JP2010/065791
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French (fr)
Japanese (ja)
Inventor
奥山哲也
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日本たばこ産業株式会社
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Priority to PCT/JP2010/065791 priority Critical patent/WO2012035608A1/en
Publication of WO2012035608A1 publication Critical patent/WO2012035608A1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • 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
    • G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
    • A24C5/3412—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by means of light, radiation or electrostatic fields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/28—Control devices for cigarette or cigar packaging machines
    • B65B19/32—Control devices for cigarette or cigar packaging machines responsive to incorrect grouping of articles or to incorrect filling of packages
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means

Definitions

  • the present invention relates to a cigarette inspection apparatus capable of reliably detecting defects in the arrangement of cigarettes with a filter in the axial direction in a bundle of cigarettes composed of a plurality of cigarettes with a filter arranged side by side.
  • the cigarette with a filter is collected by a predetermined number (for example, 20) and packaged by a packaging machine as disclosed in Patent Document 1, and commercialized as a cigarette pack.
  • a packaging machine as disclosed in Patent Document 1
  • the packaging machine disclosed in Patent Document 1 winds a packaging material around the outer periphery of a cigarette bundle made up of a plurality of cigarettes with a filter that are aligned side by side and stacked in multiple stages. After that, the both ends of the packaging material which are opened are sealed by folding inward, whereby the cigarette bundle is packaged.
  • the packaging by the packaging machine will be hindered. May occur. Specifically, after wrapping a packaging material around the outer periphery of a bundle of cigarettes, when both ends of the packaging material are folded inward and sealed, if there is a cigarette that protrudes beyond the standard filter end face, There is a risk that the cigarette may be crushed and sealed, the shape of the seal becomes distorted, and the sealing itself is hindered. Therefore, it is important to exclude (exclude) cigarette bundles that are not aligned in the axial direction from the object of packaging, thereby maintaining the quality of manufacture as a cigarette pack.
  • the present invention has been made to solve such problems, and its purpose is to provide a cigarette that is not aligned in the axial direction in a bundle of cigarettes aligned side by side in the axial direction, particularly a standard filter end face.
  • An object of the present invention is to provide a cigarette inspection apparatus that can reliably detect the presence or absence of a cigarette that has protruded in the axial direction from the axial direction of the cigarette.
  • the present invention is a cigarette inspection device that inspects for the presence or absence of cigarettes that are irregular in the axial direction in a bundle of cigarettes with filters that are aligned side by side in the axial direction,
  • a line light source that irradiates linear light extending along the cigarette arrangement direction from a direction perpendicular to the cigarette arrangement direction in the cigarette bundle and forming a predetermined elevation angle with respect to the cigarette axial direction;
  • a camera that images the filter surface of the bundle of cigarettes irradiated with the linear light from the axial direction of the cigarette;
  • Determination means for analyzing the linear light irradiation line formed on the filter surface of the cigarette bundle from the image captured by the camera and determining the alignment state of the cigarette from the cigarette bundle; It is characterized by having.
  • the determination unit detects whether or not there are a plurality of light irradiation lines shifted in a direction orthogonal to the direction in which the cigarettes are arranged, and if a plurality of light irradiation lines are detected, the shift is detected. It is characterized by determining the cigarette pop-out exceeding the allowable pop-out amount from the amount. Further, when the bundle of cigarettes with filters has multistage filter cigarettes arranged side by side with the axial direction aligned, the line light sources are respectively provided corresponding to the cigarettes of each stage, and the determination means Is preferably configured so that the determination process is executed for each stage in which cigarettes with filters are arranged side by side with the axial direction aligned.
  • the line light source is a laser light source that is provided so as to overlap the camera and emits a laser beam that spreads in a fan shape in one direction.
  • the laser beam spreading into a fan shape may be one obtained by scanning a laser beam with a fan shape, or a laser beam having a predetermined divergence angle narrowed down to a flat shape (fan shape) via a rod lens. May be.
  • the determination means preferably further includes means for determining the number of side-by-side cigarettes with a filter from the length of the light irradiation line.
  • the filter surface in the cigarette bundle is orthogonal to the direction of cigarette arrangement in the cigarette bundle and is at a predetermined elevation angle with respect to the axial direction of the cigarette.
  • Linear light extending along the cigarette arrangement direction is irradiated. Then, the light irradiated to the filter end faces of the cigarette bundle forms one linear irradiation line when the filter end faces of the plurality of cigarettes are aligned at a predetermined position without unevenness.
  • the determination unit analyzes the linear light irradiation line formed on the filter end surface of the cigarette bundle from the image of the filter end surface imaged by the camera, and in particular in a direction orthogonal to the arrangement direction of the cigarettes. Since it is detected whether or not there are a plurality of light irradiation lines that are shifted, it is possible to easily determine the alignment state of the cigarettes. Specifically, when a plurality of light irradiation lines are detected, the deviation of the cigarette is judged to jump out of the allowable jump-out amount, so that each cigarette can be accurately projected from the filter end face of the cigarette bundle. Can be determined.
  • the cigarettes that are not aligned in the axial direction in the bundle of cigarettes arranged side by side in the axial direction can be easily and reliably optically from the axial direction of the cigarettes. Can be detected.
  • This cigarette inspection device wraps a filter end face of a cigarette that is supplied side by side with a predetermined number of filter-attached cigarettes and is packaged with the predetermined packaging material in the packaging machine.
  • the image of the filter end face is inspected by analyzing the inspection image taken including the filter end face.
  • the cigarette inspection apparatus is configured such that a cigarette is displaced in the axial direction in a bundle of cigarettes in which a plurality of cigarettes are aligned side by side in the axial direction, in other words, the cigarette is protruded from the reference filter end face. The presence or absence is inspected.
  • a cigarette inspection apparatus incorporated in a packaging machine will be described as an example, but a cigarette with a filter continuously manufactured from a winding machine via a chip mounter is bundled into a predetermined number and sent to the next process. It is also possible to incorporate this cigarette inspection device into the production line.
  • this packaging machine schematically includes a molding turret 1 for processing a predetermined packaging material (for example, an aluminum vapor-deposited sheet and a paper sheet) into a bottomed rectangular tube shape, and is coaxial with the molding turret 1.
  • a predetermined packaging material for example, an aluminum vapor-deposited sheet and a paper sheet
  • a bundle of a plurality of cigarettes (for example, 20 pieces) arranged side by side in advance is housed in a bottomed rectangular tube-shaped packaging material provided side by side and molded by the molding turret 1, and the packaging material
  • a sealing turret 2 for sealing the packaging material.
  • the bundle of cigarettes is an aligner 4 in which the cigarettes with filters supplied to the hopper 3 with the orientation of the filters aligned are aligned in the axial direction and aligned with 7, 6, and 7 side by side. And is stored in the transport pocket 5 and transported to the molding turret 1 by the chain conveyor 6. Then, the cigarette bundle C is pushed out of the conveying pocket 5 by a plunger (not shown) and stored in the bottomed rectangular tubular packaging material P formed by the molding turret 1, and in this state, the cigarette The bundle C is transferred together with the bottomed rectangular tube-shaped packaging material P into a mandrel 7 as shown in FIG.
  • the sealing turret 2 folds the mandrel 7 around by rotation so that the open end of the bottomed rectangular tubular packaging material P containing the cigarette bundle C is folded inward. And the cigarette bundle C is packaged.
  • the cigarette pack in which the cigarette bundle C is packaged is guided from the sealing turret 2 to the drying turret 9 through the transfer turret 8, and after being dried by the drying turret 9, it is sent out as a product.
  • Reference numerals 1a and 1b in FIG. 1 are provided along an orbital path of the molding turret 1 and include an inner packaging material Pa made of an aluminum vapor deposited sheet or the like on a packaging mandrel of the molding turret 1 and a paper sheet. It is the packaging material supply apparatus which supplies each outer packaging material Pb which becomes. The inner packaging material Pa and the outer packaging material Pb are overlapped with each other and wound around the packaging mandrel to form the aforementioned bottomed rectangular tube-shaped packaging material P.
  • the camera 10 for imaging the filter end surface of the cigarette bundle C of the cigarette inspection device is configured to rotate around the sealing turret 2.
  • the camera 10 is a so-called ultra-small wide-angle camera, in which the mandrel 7 is provided slightly downstream from the position where the cigarette bundle C is received together with the packaging material P, and an open end of the packaging material P is provided.
  • the filter end face of the cigarette bundle C is imaged before being folded inside, that is, before sealing with the packaging material P.
  • the camera 10 captures the lateral direction of the camera body 11 through an optical system 12 such as a prism mounted on the front surface of the camera body 11 as shown in FIG. It consists of a thin depth.
  • an optical system 12 such as a prism mounted on the front surface of the camera body 11 as shown in FIG. It consists of a thin depth.
  • a so-called wide-angle lens having a lens diameter of about 12 mm, for example, that can collectively image all the filter end faces from a position close to the filter end faces of the cigarette bundle C is used.
  • three line light sources 13a, 13b, and 13c are provided above and below the camera body 11 so as to overlap the camera body 11. 2 and 3, the line light sources 13a, 13b, and 13c are orthogonal to the arrangement direction of the cigarettes of each stage in the cigarette bundle C and have a predetermined elevation angle ⁇ with respect to the axial direction of the cigarettes.
  • a laser light source that emits a laser beam that spreads in a fan shape in one direction and irradiates linear light that extends along the arrangement direction of the cigarettes at each stage is formed.
  • P indicates a packaging material wound around the cigarette bundle C.
  • each of the line light sources 13a, 13b, 13c for example, a linear beam extending along the arrangement direction of the cigarettes by fan-scanning a laser beam emitted from a semiconductor laser element (not shown) in one direction. What emits light is used.
  • a laser beam having a predetermined divergence angle emitted from a semiconductor laser element using a rod lens (not shown) provided in parallel with the cigarette arrangement direction is used. It is also possible to use a configuration that irradiates with a flat (fan-shaped) aperture.
  • these line light sources 13a, 13b, and 13c are provided so as to individually irradiate linear light with respect to the above-described arrangement of cigarettes.
  • linear light is emitted from the line light source 13a to the upper cigarette array, from the line light source 13b to the middle cigarette array, and from the line light source 13c to the lower cigarette array. It is like that.
  • the line light sources 13a, 13b, and 13c are installed close to the side portion of the sealing turret 2 together with the camera 10.
  • the line light sources 13a, 13b, and 13c are driven to emit light (turn on) in conjunction with the circulation of the mandrel 7 by the sealing turret 2 described above.
  • the line light sources 13a, 13b, and 13c are driven, whereby the filter end face of the cigarette bundle C has the linear shape described above. Light is irradiated.
  • the camera 10 is driven in synchronization with the light irradiation, and the entire filter end face in the cigarette bundle C is imaged collectively.
  • FIG. 4 shows a schematic configuration of a cigarette inspection apparatus according to an embodiment of the present invention.
  • the cigarette inspection apparatus includes an inspection image memory 14 that stores an inspection image of the filter end surface of the cigarette bundle C captured by the camera 10 described above, and an inspection image (cigarette bundle) stored in the inspection image memory 14.
  • the image processing apparatus 20 is provided for analyzing a light irradiation line formed on the C filter end face.
  • the image processing apparatus 20 is composed of, for example, a microprocessor that analyzes the inspection image according to a preset program.
  • the inspection images of the cigarette bundle C imaged by the camera 10 were respectively formed by three linear lights irradiated to the filter end surface of the cigarette bundle C by the line light sources 13a, 13b, and 13c. It becomes a bright image area composed of light irradiation lines.
  • the filter end face of each cigarette, the gap between cigarettes, and the side part of the cigarette that is not irradiated with the linear light form a dark image region.
  • the filter end faces of the cigarette bundle C are aligned, that is, when all of the plurality of cigarettes forming the cigarette bundle C are arranged side by side and are not displaced in the axial direction, the cigarette bundle C
  • the light irradiation lines formed by the three lights irradiated to the filter end faces are linear lines A1 and A2, as shown in FIG. A2 and A3.
  • the formation position of the light irradiation line A4 is arranged more than the position of the light irradiation line A1 formed on the end face of the other cigarette (reference filter end face position). Deviation occurs in a direction perpendicular to the direction.
  • the amount of deviation ⁇ of the light irradiation line A4 from the light irradiation line A1 is the light irradiation angle (elevation angle) when the amount of protrusion of the filter end surface of the cigarette from the reference filter end surface position is B.
  • Is [ ⁇ Btan ⁇ ]
  • the light irradiation angle ⁇ is constant, and is proportional to the amount B of the cigarette protruding in the axial direction.
  • the light irradiation line A4 is shifted downward with respect to the optical image A1.
  • the middle and upper cigarette rows are irradiated with light from obliquely above the cigarette rows as shown in FIG. 2 and FIG.
  • the light irradiation line is shifted upward, without needing to be described again.
  • the image processing apparatus 20 shown in FIG. 4 analyzes (analyzes) such an inspection image (light irradiation line) and, as described above, a cigarette bundle C arranged side by side in the axial direction. It plays a role of determining the presence or absence of cigarettes that are irregular in the axial direction, particularly the cigarettes that protrude in the axial direction from the standard filter end face.
  • the image processing apparatus 20 uses a cigarette bundle C that is stacked in three stages by aligning the axial direction of a plurality of cigarettes side by side and aligning them with 7, 6, and 7, respectively.
  • Three search areas S1, S2, and S3 are set for the inspection image in order to detect the cigarette pop-out individually for the upper, middle, and lower cigarettes, and for each of these search areas S1, S2, and S3. Cigarette pop-out detection processing is performed.
  • the image processing apparatus 20 designates three search areas S1, S2, and S3 in order for the inspection image stored in the inspection image memory 14, and specifies them.
  • a search area setting unit 21 that selectively reads out images included in the search area S1 (S2, S3) from the inspection image memory 14 is provided. Then, the above-described light irradiation line is detected for each search area image read from the inspection image memory 14, thereby executing analysis on the light irradiation line.
  • the line detection unit 22 determines the brightness of each search area S in the inspection image for each pixel (segment) having a preset size, and selects a high brightness pixel. Detected as the light irradiation site.
  • the line detection unit 22 detects a series of high-luminance pixels (segments) obtained as shown in FIG. 7 as the light irradiation line A formed by the linear light irradiation described above.
  • the line length measuring unit 23 detects the light irradiation line A thus detected as, for example, the length of the light irradiation line A as a continuous number of high-luminance pixels (segments). Then, the line length determination unit 24 determines whether or not the length of the light irradiation line A corresponds to the arrangement width of seven or six cigarettes.
  • the line length determination unit 24 determines that the length of the irradiation line A is 70 to 77 segments. Then, it is determined that the seven cigarettes are arranged side by side without causing any deviation in the axial direction. When the length of the irradiation line A is 60 to 66 segments, it is determined that the six cigarettes are arranged side by side without causing any deviation in the axial direction (the state shown in FIG. 5).
  • the reference line setting unit 25 pays attention to the longest irradiation line among the light irradiation lines A detected as described above, and sets the reference line X so as to overlap the irradiation line A as shown in FIG. . Then, the deviation amount detection unit 26 obtains deviation amounts ⁇ of the plurality of light irradiation lines A from the reference line X using the reference line X as a reference position. This deviation amount ⁇ corresponds to the amount of deviation of the cigarette in the axial direction as described above. And the deviation
  • the reference line X is set so as to overlap the light irradiation line A, and the deviation amount of the irradiation line A is set to [0]. Detected. Needless to say, even when there are a plurality of irradiation lines A while causing breaks on the reference line X, the deviation amounts of these irradiation lines A are respectively detected as [0].
  • the defect determination unit 28 determines the reference line X of the plurality of light irradiation lines A determined by the shift amount determination unit 27 for each of the upper, middle, and lower search regions in the cigarette bundle C as described above. And the determination result of the length of the irradiation line A of light determined by the above-described line length determination unit 24 are comprehensively determined. And the defect determination part 28 determines whether the cigarette bundle C accommodated in the mandrel 7 mentioned above and used for the packaging by the packaging material P contains the cigarette which produced the shift
  • the length of the linear light irradiation line A formed on the filter surface of the cigarettes arranged in each stage and obliquely applied to the cigarette bundle C and the reference of the light irradiation line A are as follows.
  • the cigarette inspection apparatus that determines the amount of deviation ⁇ from the line X
  • the presence or absence of a cigarette that has a deviation in the axial direction in the cigarette bundle C can be easily and reliably detected.
  • the presence of a cigarette that protrudes from a standard filter end face in a bundle C of cigarettes by simply detecting a light irradiation line A formed by linear light irradiation and determining its formation state. Can be reliably detected, and the image processing load is small.
  • the present invention is not limited to the embodiment described above.
  • the example of the inspection of the cigarette bundle C in which the plurality of cigarettes are aligned side by side and aligned in a row with 7, 6, and 7 cigarettes is described as an example.
  • the inspection can be similarly performed on the bundle C of ten cigarettes that are aligned and stacked in two stages or the bundle C of five cigarettes of only one stage.
  • the cigarette inspection device is incorporated into a packaging machine, but as described above, it can be incorporated into a production line for a cigarette with a filter as appropriate.
  • two light irradiation lines are detected on the above-mentioned reference line X with a break for one cigarette, for example, it is assumed that the filter of the cigarette at the break portion is missing, and the alignment other than the above-described jumping is performed. Abnormality can also be determined.
  • the present invention can be variously modified and implemented without departing from the scope of the invention.

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Abstract

Irradiate a linear light, which extends along a cigarette-arrangement direction, from a direction which creates a prescribed angle of elevation relative to the axial direction of the cigarettes and which is orthogonal to the arrangement direction of the cigarettes in a cigarette bundle. Then, find the length and deviation amount from a reference line of the irradiation line of the light, formed on the filter surface of the bundle of cigarettes, and when a plurality of straight lines which deviate in the direction orthogonal to the arrangement direction of the cigarettes are present, and said deviation amount exceeds a permitted protrusion amount, cigarette protrusion is detected.

Description

シガレット検査装置Cigarette inspection device
　本発明は、向きを揃えて横並びに並べた複数本のフィルタ付きシガレットからなるシガレットの束における、フィルタ付きシガレットの軸方向における並びの不具合を確実に検出することのできるシガレット検査装置に関する。 The present invention relates to a cigarette inspection apparatus capable of reliably detecting defects in the arrangement of cigarettes with a filter in the axial direction in a bundle of cigarettes composed of a plurality of cigarettes with a filter arranged side by side.
　フィルタ付きシガレットは、所定本数（例えば２０本）ずつまとめられて特許文献１に開示されるような包装機にて包装され、たばこパックとして製品化される。ちなみに特許文献１に開示される包装機は、向きを揃えて横並びに並べて、更には多段に積み上げてまとめた複数本のフィルタ付きシガレットからなるシガレットの束に対して、その外周に包装材を巻き付けた後、該包装材の開放された両端をそれぞれ内側に折り込むことで封口し、これによって上記シガレットの束を包装する。 The cigarette with a filter is collected by a predetermined number (for example, 20) and packaged by a packaging machine as disclosed in Patent Document 1, and commercialized as a cigarette pack. By the way, the packaging machine disclosed in Patent Document 1 winds a packaging material around the outer periphery of a cigarette bundle made up of a plurality of cigarettes with a filter that are aligned side by side and stacked in multiple stages. After that, the both ends of the packaging material which are opened are sealed by folding inward, whereby the cigarette bundle is packaged.
特許第３４３７７５３号Japanese Patent No. 3,437,753
　ところで前述した包装機に供給されるシガレットの束の中に、軸方向にずれを有するシガレットが存在すると、つまり他のシガレットのフィルタ端面よりも突出したシガレットが存在すると、該包装機による包装に支障が生じる虞がある。具体的にはシガレットの束の外周に包装材を巻き付けた後、該包装材の開放された両端をそれぞれ内側に折り込んで封口する際、標準的なフィルタ端面よりも突出したシガレットが存在すると、そのシガレットを押し潰して封口したり、またその封口形状がいびつになったり、更には封口すること自体が妨げられる等の不具合が生じる虞がある。従って軸方向に不揃いなシガレットの束については、その包装対象から除外（排除）し、これによってたばこパックとしての製造品質を維持することが重要である。 By the way, if there is a cigarette having an axial displacement in the bundle of cigarettes supplied to the packaging machine described above, that is, if there is a cigarette protruding from the filter end surface of another cigarette, the packaging by the packaging machine will be hindered. May occur. Specifically, after wrapping a packaging material around the outer periphery of a bundle of cigarettes, when both ends of the packaging material are folded inward and sealed, if there is a cigarette that protrudes beyond the standard filter end face, There is a risk that the cigarette may be crushed and sealed, the shape of the seal becomes distorted, and the sealing itself is hindered. Therefore, it is important to exclude (exclude) cigarette bundles that are not aligned in the axial direction from the object of packaging, thereby maintaining the quality of manufacture as a cigarette pack.
　シガレットの束に含まれる軸方向に不揃いなシガレット、具体的には標準的なフィルタ端面よりも突出したシガレットを検出するには、例えばシガレットの軸方向に直角な方向から該シガレットの束のフィルタ端面における凹凸の有無を光学的に判定すれば良い。しかしながら前述した包装機における限られた空間に、このような光学装置、具体的にはフィルタ端面を該シガレットの横方向から撮像するカメラや光学センサを組み込むことは困難である。しかもシガレットの束に巻き付けられた包装材の端部、つまり包装材端部の封口領域がシガレットの束の端面から突出しているので、これが邪魔してシガレットの横方向から該シガレットの端面を撮像することができないと言う問題がある。 In order to detect cigarettes included in a cigarette bundle that are irregular in the axial direction, specifically, cigarettes that protrude beyond the standard filter end face, for example, the filter end face of the cigarette bundle from a direction perpendicular to the axial direction of the cigarette What is necessary is just to determine optically the presence or absence of the unevenness | corrugation in. However, it is difficult to incorporate such an optical device, specifically, a camera or an optical sensor that images the end face of the filter from the lateral direction of the cigarette in a limited space in the packaging machine described above. Moreover, since the end of the packaging material wound around the cigarette bundle, that is, the sealing region at the end of the packaging material protrudes from the end surface of the cigarette bundle, this interferes with imaging of the end surface of the cigarette from the lateral direction of the cigarette. There is a problem that you can't.
　本発明はこのような不具合を解消するべくなされたもので、その目的は、軸方向に向きを揃えて横並びに配列されたシガレットの束における軸方向に不揃いなシガレットを、特に標準的なフィルタ端面から軸方向に飛び出したシガレットの有無を、該シガレットの軸方向から確実に検出することのできるシガレット検査装置を提供することにある。 The present invention has been made to solve such problems, and its purpose is to provide a cigarette that is not aligned in the axial direction in a bundle of cigarettes aligned side by side in the axial direction, particularly a standard filter end face. An object of the present invention is to provide a cigarette inspection apparatus that can reliably detect the presence or absence of a cigarette that has protruded in the axial direction from the axial direction of the cigarette.
　本発明は、軸方向を揃えて横並びに配列されたフィルタ付きシガレットの束における軸方向に不揃いなシガレットの有無を検査するシガレット検査装置であって、
　前記シガレットの束におけるシガレットの並び方向と直交し、且つシガレットの軸方向に対して所定の仰角をなす向きから該シガレットの並び方向に沿って延びる直線状の光を照射するライン光源と、
　前記直線状の光が照射された前記シガレットの束のフィルタ面を前記シガレットの軸方向から撮像するカメラと、
　前記カメラにより撮像された画像から前記シガレットの束のフィルタ面上に形成された前記直線状の光の照射ラインを解析して前記シガレットの束からのシガレットの整列状態を判定する判定手段と、を具備したことを特徴としている。 The present invention is a cigarette inspection device that inspects for the presence or absence of cigarettes that are irregular in the axial direction in a bundle of cigarettes with filters that are aligned side by side in the axial direction,
A line light source that irradiates linear light extending along the cigarette arrangement direction from a direction perpendicular to the cigarette arrangement direction in the cigarette bundle and forming a predetermined elevation angle with respect to the cigarette axial direction;
A camera that images the filter surface of the bundle of cigarettes irradiated with the linear light from the axial direction of the cigarette;
Determination means for analyzing the linear light irradiation line formed on the filter surface of the cigarette bundle from the image captured by the camera and determining the alignment state of the cigarette from the cigarette bundle; It is characterized by having.
　好ましくは前記判定手段は、前記シガレットの並び方向と直交する向きにずれた複数の光の照射ラインが存在するか否かを検出し、複数の光の照射ラインが検出される場合にはそのずれ量から許容飛び出し量を超えるシガレットの飛び出しを判定することを特徴としている。
　また前記フィルタ付きシガレットの束が、軸方向を揃えて横並びに配列したフィルタ付きシガレットを多段に有するものであるとき、前記ライン光源を各段のシガレットの並びに対応させてそれぞれ設け、そして前記判定手段については、軸方向を揃えてフィルタ付きシガレットを横並びに配列した段毎に判定処理を実行するように構成することが好ましい。 Preferably, the determination unit detects whether or not there are a plurality of light irradiation lines shifted in a direction orthogonal to the direction in which the cigarettes are arranged, and if a plurality of light irradiation lines are detected, the shift is detected. It is characterized by determining the cigarette pop-out exceeding the allowable pop-out amount from the amount.
Further, when the bundle of cigarettes with filters has multistage filter cigarettes arranged side by side with the axial direction aligned, the line light sources are respectively provided corresponding to the cigarettes of each stage, and the determination means Is preferably configured so that the determination process is executed for each stage in which cigarettes with filters are arranged side by side with the axial direction aligned.
　ちなみに前記ライン光源は、例えば前記カメラに重ねて設けられて、一方向に扇形に拡がるレーザ光を射出するレーザ光源からなる。尚、扇形に拡がるレーザ光については、レーザビーム光を扇形走査したものであっても良く、或いは所定の拡がり角を有するレーザ光を、ロッドレンズを介して偏平（扇形）に絞り込んだものであっても良い。
　尚、前記判定手段は、更に前記光の照射ラインの長さから前記フィルタ付きシガレットの横並び本数を判定する手段を備えることが好ましい。 For example, the line light source is a laser light source that is provided so as to overlap the camera and emits a laser beam that spreads in a fan shape in one direction. Note that the laser beam spreading into a fan shape may be one obtained by scanning a laser beam with a fan shape, or a laser beam having a predetermined divergence angle narrowed down to a flat shape (fan shape) via a rod lens. May be.
The determination means preferably further includes means for determining the number of side-by-side cigarettes with a filter from the length of the light irradiation line.
　上記構成のシガレット検査装置によれば、前記シガレットの束におけるフィルタ面に対して、該シガレットの束におけるシガレットの並び方向と直交し、且つシガレットの軸方向に対して所定の仰角をなす向きから該シガレットの並び方向に沿って延びる直線状の光が照射される。するとシガレットの束のフィルタ端面に照射される光は、複数本のシガレットのフィルタ端面が凹凸なく規定の位置に揃っている場合には、１本の直線状の照射ラインを形成する。しかし複数本のシガレットのフィルタ端面間に凹凸が存在し、或るシガレットのフィルタ端面が規定の規定の位置から軸方向にずれている場合、具体的には或るシガレットが突出している場合には、当該シガレットのフィルタ端面に照射された光の位置が前述した仰角に依存して該シガレットの並び方向と直交する向きに変位するので複数本の光の照射ラインが形成される。 According to the cigarette inspection apparatus having the above-described configuration, the filter surface in the cigarette bundle is orthogonal to the direction of cigarette arrangement in the cigarette bundle and is at a predetermined elevation angle with respect to the axial direction of the cigarette. Linear light extending along the cigarette arrangement direction is irradiated. Then, the light irradiated to the filter end faces of the cigarette bundle forms one linear irradiation line when the filter end faces of the plurality of cigarettes are aligned at a predetermined position without unevenness. However, when there are irregularities between the filter end faces of a plurality of cigarettes and the filter end face of a cigarette is displaced in the axial direction from a specified specified position, specifically when a certain cigarette protrudes Since the position of the light irradiated on the filter end face of the cigarette is displaced in a direction perpendicular to the arrangement direction of the cigarettes depending on the elevation angle, a plurality of light irradiation lines are formed.
　そこで判定手段においては、カメラにより撮像されたフィルタ端面の画像から前記シガレットの束のフィルタ端面上に形成された前記直線状の光の照射ラインを解析し、特にシガレットの並び方向と直交する向きにずれた複数の光の照射ラインが存在するか否かを検出するので、シガレットの整列状態を簡易に判定することができる。具体的には複数の光の照射ラインが検出される場合にはそのずれ量から許容飛び出し量を超えるシガレットの飛び出しを判定するので、シガレットの束のフィルタ端面からの個々のシガレットの突出を精度良く判定することができる。 Therefore, the determination unit analyzes the linear light irradiation line formed on the filter end surface of the cigarette bundle from the image of the filter end surface imaged by the camera, and in particular in a direction orthogonal to the arrangement direction of the cigarettes. Since it is detected whether or not there are a plurality of light irradiation lines that are shifted, it is possible to easily determine the alignment state of the cigarettes. Specifically, when a plurality of light irradiation lines are detected, the deviation of the cigarette is judged to jump out of the allowable jump-out amount, so that each cigarette can be accurately projected from the filter end face of the cigarette bundle. Can be determined.
　特に本発明に係るシガレット検査装置によれば、軸方向に向きを揃えて横並びに配列されたシガレットの束における軸方向に不揃いなシガレットを、該シガレットの軸方向から光学的に簡易に、しかも確実に検出することができる。 In particular, according to the cigarette inspection apparatus according to the present invention, the cigarettes that are not aligned in the axial direction in the bundle of cigarettes arranged side by side in the axial direction can be easily and reliably optically from the axial direction of the cigarettes. Can be detected.
本発明に係るシガレット検査装置が組み付けられる、たばこパック用包装機の概略構成を示す図。The figure which shows schematic structure of the packaging machine for cigarette packs in which the cigarette inspection apparatus which concerns on this invention is assembled | attached. たばこパック用包装機に供給されたフィルタ付きシガレットの束の様子と、そのフィルタ端面を光学的に検出する為の本発明に係るシガレット検査装置の光学系を示す図。The figure which shows the optical system of the cigarette test | inspection apparatus based on this invention for optically detecting the mode of the bundle of cigarettes with a filter supplied to the packaging machine for cigarette packs, and the filter end surface. 図２に示す光学系を構成するライン光源とカメラの配置関係を示す図。The figure which shows the arrangement | positioning relationship between the line light source and camera which comprise the optical system shown in FIG. 本発明の一実施形態に係るシガレット検査装置の概略構成図。The schematic block diagram of the cigarette inspection apparatus which concerns on one Embodiment of this invention. シガレットの束のフィルタ端面が揃っている場合に上記フィルタ端面に形成される光の照射ラインを示す図。The figure which shows the irradiation line of the light formed in the said filter end surface when the filter end surface of the bundle of cigarettes has gathered. シガレットの束における規定のフィルタ端面から、或るシガレットのフィルタ端面が突出している場合に上記フィルタ端面に形成される光の照射ラインを示す図。The figure which shows the irradiation line of the light formed in the said filter end surface when the filter end surface of a certain cigarette protrudes from the regular filter end surface in the bundle of cigarettes. 本発明の一実施形態に係るシガレット検査装置におけるシガレットの飛び出し判定の処理概念を示す図。The figure which shows the process concept of the pop-out determination of a cigarette in the cigarette inspection apparatus which concerns on one Embodiment of this invention.
　以下、図面を参照して本発明の一実施形態に係るシガレット検査装置の詳細について説明する。
　このシガレット検査装置は、例えば所定本数のフィルタ付きシガレットを横並びに整列させて包装機に供給されて包装されるシガレットのフィルタ端面を、上記包装機において所定の包装材にて包装し、該包装材を封口する前に撮像し、該フィルタ端面を含んで撮像した検査画像を分析して前記フィルタ端面の品質を検査するものである。具体的にはこのシガレット検査装置は、軸方向を揃えて複数本のシガレットを横並びに整列させたシガレットの束におけるシガレットの軸方向のずれ、換言すれば基準となるフィルタ端面からのシガレットの飛び出しの有無を検査するものである。 Hereinafter, the details of the cigarette inspection apparatus according to an embodiment of the present invention will be described with reference to the drawings.
This cigarette inspection device, for example, wraps a filter end face of a cigarette that is supplied side by side with a predetermined number of filter-attached cigarettes and is packaged with the predetermined packaging material in the packaging machine. The image of the filter end face is inspected by analyzing the inspection image taken including the filter end face. Specifically, the cigarette inspection apparatus is configured such that a cigarette is displaced in the axial direction in a bundle of cigarettes in which a plurality of cigarettes are aligned side by side in the axial direction, in other words, the cigarette is protruded from the reference filter end face. The presence or absence is inspected.
　尚、ここでは包装機に組み込まれるシガレット検査装置を例に説明するが、巻き上げ機からチップマウンタを介して連続的に製造されたフィルタ付きシガレットを、所定本数ずつ束にしてまとめて次工程に送り出す製造ラインに、本シガレット検査装置を組み込むことも可能である。 Here, a cigarette inspection apparatus incorporated in a packaging machine will be described as an example, but a cigarette with a filter continuously manufactured from a winding machine via a chip mounter is bundled into a predetermined number and sent to the next process. It is also possible to incorporate this cigarette inspection device into the production line.
　さて本発明に係るシガレット検査装置が組み込まれるシガレット用の包装機は、例えば前述した特許文献１に詳しく紹介されるものからなる。この包装機は、概略的には図１に示すように所定の包装材（例えばアルミ蒸着シートと紙シート）を有底角筒状に加工する成形用ターレット１と、この成形用ターレット１と同軸に並べて設けられて上記成形用ターレット１にて成形された有底角筒状の包装材の内部に、予め横並びに整列した複数本（例えば２０本）のシガレットの束を収納し、上記包装材の開口端を折り込んで該包装材を封口する封口用ターレット２とを備える。 Now, the cigarette wrapping machine in which the cigarette inspection apparatus according to the present invention is incorporated is, for example, the one introduced in detail in Patent Document 1 described above. As shown in FIG. 1, this packaging machine schematically includes a molding turret 1 for processing a predetermined packaging material (for example, an aluminum vapor-deposited sheet and a paper sheet) into a bottomed rectangular tube shape, and is coaxial with the molding turret 1. A bundle of a plurality of cigarettes (for example, 20 pieces) arranged side by side in advance is housed in a bottomed rectangular tube-shaped packaging material provided side by side and molded by the molding turret 1, and the packaging material And a sealing turret 2 for sealing the packaging material.
　ちなみにシガレットの束は、フィルタの向きを揃えてホッパ３に供給されるフィルタ付きシガレットを、軸方向を揃えて横並びに７本、６本、７本とそれぞれ整列させて３段に積み重ねる整列機４により形成され、搬送ポケット５に収納されてチェーンコンベア６により前記成形用ターレット１まで搬送される。そしてシガレットの束Ｃは、図示しないプランジャにより搬送ポケット５から押し出されて前記上記成形用ターレット１にて成形された有底角筒状の包装材Ｐの内部に収納され、更にこの状態で前記シガレットの束Ｃは有底角筒状の包装材Ｐと共に前記封口用ターレット２の、例えば図２に示すようなマンドレル７内に移送される。 Incidentally, the bundle of cigarettes is an aligner 4 in which the cigarettes with filters supplied to the hopper 3 with the orientation of the filters aligned are aligned in the axial direction and aligned with 7, 6, and 7 side by side. And is stored in the transport pocket 5 and transported to the molding turret 1 by the chain conveyor 6. Then, the cigarette bundle C is pushed out of the conveying pocket 5 by a plunger (not shown) and stored in the bottomed rectangular tubular packaging material P formed by the molding turret 1, and in this state, the cigarette The bundle C is transferred together with the bottomed rectangular tube-shaped packaging material P into a mandrel 7 as shown in FIG.
　そして封口用ターレット２は、回転により前記マンドレル７を周回させて前記シガレットの束Ｃを収納した前記有底角筒状の包装材Ｐの開放端部を内側に向けて折り込み、これによって包装材Ｐを封口して前記シガレットの束Ｃを包装する。尚、シガレットの束Ｃを包装したたばこパックは、前記封口用ターレット２から移送ターレット８を介して乾燥ターレット９に導かれ、この乾燥ターレット９にて乾燥処理が施された後に製品として送り出される。 The sealing turret 2 folds the mandrel 7 around by rotation so that the open end of the bottomed rectangular tubular packaging material P containing the cigarette bundle C is folded inward. And the cigarette bundle C is packaged. The cigarette pack in which the cigarette bundle C is packaged is guided from the sealing turret 2 to the drying turret 9 through the transfer turret 8, and after being dried by the drying turret 9, it is sent out as a product.
　尚、図１における符号１ａ,１ｂは、前記成形用ターレット１の周回軌道に沿って設けられて該成形用ターレット１の包装用マンドレルにアルミ蒸着シート等からなる内包材Ｐａと、紙シート等からなる外包材Ｐｂとをそれぞれ供給する包装材供給装置である。これらの内包材Ｐａおよび外包材Ｐｂは、互いに重ね合わせられて前記包装用マンドレルに巻き付けられて前述した有底角筒状の包装材Ｐを形成する。 Reference numerals 1a and 1b in FIG. 1 are provided along an orbital path of the molding turret 1 and include an inner packaging material Pa made of an aluminum vapor deposited sheet or the like on a packaging mandrel of the molding turret 1 and a paper sheet. It is the packaging material supply apparatus which supplies each outer packaging material Pb which becomes. The inner packaging material Pa and the outer packaging material Pb are overlapped with each other and wound around the packaging mandrel to form the aforementioned bottomed rectangular tube-shaped packaging material P.
　さて基本的には上述した如く構成されるシガレット用の包装機に対して、本発明に係るシガレット検査装置の前記シガレットの束Ｃのフィルタ端面を撮像するカメラ１０は、前記封口用ターレット２の周回軌道の側部に設けられる。特にカメラ１０は、いわゆる超小型の広角カメラであって、前記マンドレル７が前記包装材Ｐと共にシガレットの束Ｃの受け取る位置から僅かに下流側に設けられて、前記包装材Ｐの開放端部が内側に折り込まれる前に、つまり包装材Ｐによる封口前に前記シガレットの束Ｃのフィルタ端面を撮像するものとなっている。 Now, with respect to the cigarette wrapping machine configured as described above, the camera 10 for imaging the filter end surface of the cigarette bundle C of the cigarette inspection device according to the present invention is configured to rotate around the sealing turret 2. Located on the side of the track. In particular, the camera 10 is a so-called ultra-small wide-angle camera, in which the mandrel 7 is provided slightly downstream from the position where the cigarette bundle C is received together with the packaging material P, and an open end of the packaging material P is provided. The filter end face of the cigarette bundle C is imaged before being folded inside, that is, before sealing with the packaging material P.
　具体的には前記カメラ１０は、例えば図２に示すようにカメラ本体１１の前面に装着されたプリズム等の光学系１２を介して該カメラ本体１１の横側方向を撮像する、いわゆるサイドビュー型の奥行き長さの薄いものからなる。特にカメラ本体１１としては、例えばレンズ径が１２ｍｍ程度の、いわゆる広角レンズを備え、シガレットの束Ｃのフィルタ端面に近接した位置から該フィルタ端面の全てを一括して撮像可能なものが用いられる。 Specifically, the camera 10 captures the lateral direction of the camera body 11 through an optical system 12 such as a prism mounted on the front surface of the camera body 11 as shown in FIG. It consists of a thin depth. In particular, as the camera body 11, a so-called wide-angle lens having a lens diameter of about 12 mm, for example, that can collectively image all the filter end faces from a position close to the filter end faces of the cigarette bundle C is used.
　またカメラ本体１１の上下には、該カメラ本体１１に重ねて３台のライン光源１３ａ,１３ｂ,１３ｃが設けられている。これらのライン光源１３ａ,１３ｂ,１３ｃは、図２および図３にそれぞれ示すように前記シガレットの束Ｃおける各段のシガレットの並び方向と直交し、且つシガレットの軸方向に対して所定の仰角θをなす向きから、例えば一方向に扇形に拡がるレーザ光を射出し、各段のシガレットの並び方向に沿って延びる直線状の光をそれぞれ照射するレーザ光源からなる。尚、図３においてＰは、シガレットの束Ｃの周囲に巻き付けられた包装材を示している。 Also, three line light sources 13a, 13b, and 13c are provided above and below the camera body 11 so as to overlap the camera body 11. 2 and 3, the line light sources 13a, 13b, and 13c are orthogonal to the arrangement direction of the cigarettes of each stage in the cigarette bundle C and have a predetermined elevation angle θ with respect to the axial direction of the cigarettes. For example, a laser light source that emits a laser beam that spreads in a fan shape in one direction and irradiates linear light that extends along the arrangement direction of the cigarettes at each stage is formed. In FIG. 3, P indicates a packaging material wound around the cigarette bundle C.
　ちなみに前記各ライン光源１３ａ,１３ｂ,１３ｃとしては、例えば半導体レーザ素子（図示せず）から発せられたレーザビーム光を一方向に扇形走査することで前記シガレットの並び方向に沿って延びる直線状の光を射出するものが用いられる。或いは前記各ライン光源１３ａ,１３ｂ,１３ｃとして、前記シガレットの並び方向と平行に設けられたロッドレンズ（図示せず）を用いて、半導体レーザ素子から発せられた所定の拡がり角を有するレーザ光を偏平（扇形）に絞り込んで照射する構成のものを用いることも可能である。 Incidentally, as each of the line light sources 13a, 13b, 13c, for example, a linear beam extending along the arrangement direction of the cigarettes by fan-scanning a laser beam emitted from a semiconductor laser element (not shown) in one direction. What emits light is used. Alternatively, as each of the line light sources 13a, 13b, and 13c, a laser beam having a predetermined divergence angle emitted from a semiconductor laser element using a rod lens (not shown) provided in parallel with the cigarette arrangement direction is used. It is also possible to use a configuration that irradiates with a flat (fan-shaped) aperture.
　特にこれらのライン光源１３ａ,１３ｂ,１３ｃは、前述した各段のシガレットの並びに対してそれぞれ個別に直線状の光を照射するように設けられている。この例ではライン光源１３ａにより上段のシガレットの並びに対して、またライン光源１３ｂにより中段のシガレットの並びに対して、そしてライン光源１３ｃにより下段のシガレットの並びに対してそれぞれ直線状の光がそれぞれ照射されるようになっている。 Particularly, these line light sources 13a, 13b, and 13c are provided so as to individually irradiate linear light with respect to the above-described arrangement of cigarettes. In this example, linear light is emitted from the line light source 13a to the upper cigarette array, from the line light source 13b to the middle cigarette array, and from the line light source 13c to the lower cigarette array. It is like that.
　尚、前記ライン光源１３ａ,１３ｂ,１３ｃは、前記カメラ１０と共に前述した封口用ターレット２の側部に近接させて設置される。そして各ライン光源１３ａ,１３ｂ,１３ｃは、前述した封口用ターレット２による前記マンドレル７の周回に連動して発光駆動（点灯駆動）される。具体的には前記シガレットの束Ｃが前記カメラ１０による所定の検査位置に導かれる都度、前記ライン光源１３ａ,１３ｂ,１３ｃが駆動され、これによってシガレットの束Ｃにおけるフィルタ端面に前述した直線状の光が照射される。そしてこの光の照射に同期して前記カメラ１０が駆動され、前記シガレットの束Ｃにおけるフィルタ端面の全体が一括して撮像される。 The line light sources 13a, 13b, and 13c are installed close to the side portion of the sealing turret 2 together with the camera 10. The line light sources 13a, 13b, and 13c are driven to emit light (turn on) in conjunction with the circulation of the mandrel 7 by the sealing turret 2 described above. Specifically, each time the cigarette bundle C is guided to a predetermined inspection position by the camera 10, the line light sources 13a, 13b, and 13c are driven, whereby the filter end face of the cigarette bundle C has the linear shape described above. Light is irradiated. Then, the camera 10 is driven in synchronization with the light irradiation, and the entire filter end face in the cigarette bundle C is imaged collectively.
　次に上述したカメラ１０とライン光源１３ａ,１３ｂ,１３ｃとを備えて構成される本発明の一実施形態に係るシガレット検査装置について説明する。
　図４は本発明の一実施形態に係るシガレット検査装置の概略構成を示している。このシガレット検査装置は、前述したカメラ１０にて撮像された前記シガレットの束Ｃのフィルタ端面の検査画像を記憶する検査画像メモリ１４と、この検査画像メモリ１４に記憶された検査画像（シガレットの束Ｃのフィルタ端面に形成される光の照射ライン）を分析する画像処理装置２０を備える。この画像処理装置２０は、例えば予め設定されたプログラムに従って前記検査画像を分析するマイクロプロセッサからなる。 Next, a cigarette inspection apparatus according to an embodiment of the present invention configured by including the above-described camera 10 and line light sources 13a, 13b, and 13c will be described.
FIG. 4 shows a schematic configuration of a cigarette inspection apparatus according to an embodiment of the present invention. The cigarette inspection apparatus includes an inspection image memory 14 that stores an inspection image of the filter end surface of the cigarette bundle C captured by the camera 10 described above, and an inspection image (cigarette bundle) stored in the inspection image memory 14. The image processing apparatus 20 is provided for analyzing a light irradiation line formed on the C filter end face. The image processing apparatus 20 is composed of, for example, a microprocessor that analyzes the inspection image according to a preset program.
　ちなみにカメラ１０により撮像された前記シガレットの束Ｃの検査画像は、前記ライン光源１３ａ,１３ｂ,１３ｃにより該シガレットの束Ｃのフィルタ端面に照射された３本の直線状の光によりそれぞれ形成された光の照射ラインからなる明るい画像領域となる。これに対して各シガレットのフィルタ端面やシガレット間の隙間、更にはシガレットの側部であって前記直線状の光が照射されない部位は、暗い画像領域を形成する。 Incidentally, the inspection images of the cigarette bundle C imaged by the camera 10 were respectively formed by three linear lights irradiated to the filter end surface of the cigarette bundle C by the line light sources 13a, 13b, and 13c. It becomes a bright image area composed of light irradiation lines. On the other hand, the filter end face of each cigarette, the gap between cigarettes, and the side part of the cigarette that is not irradiated with the linear light form a dark image region.
　そしてシガレットの束Ｃのフィルタ端面が揃っている場合、つまりシガレットの束Ｃを形成する複数のシガレットの全てが整然と横並びに配列されて軸方向にずれが生じていない場合には、シガレットの束Ｃにおける各段のシガレットの配列方向に沿ってそれぞれ直線状をなし、そのフィルタ端面に照射された３本の光が形成する光の照射ラインは、図５に例示するように直線状のラインＡ１,Ａ２,Ａ３となる。 When the filter end faces of the cigarette bundle C are aligned, that is, when all of the plurality of cigarettes forming the cigarette bundle C are arranged side by side and are not displaced in the axial direction, the cigarette bundle C The light irradiation lines formed by the three lights irradiated to the filter end faces are linear lines A1 and A2, as shown in FIG. A2 and A3.
　しかしシガレットの束Ｃにおける或るシガレットが軸方向にずれ、例えば上段における右端のシガレットが所定のフィルタ端面から飛び出している場合、図６に示すように当該シガレットの端面において形成される光の照射ラインＡ４の位置が、シガレットの並び方向とは直交する方向にずれを生じる。即ち、シガレットの並びに対して照射される光が前述したようにシガレットの並び方向と直交し、且つシガレットの軸方向に対して所定の仰角θをなす向きから照射されているので、シガレットの端面が軸方向にずれている分だけ、前記光の照射ラインＡ４の形成位置が、他のシガレットの端面（基準となるフィルタ端面位置）に形成される光の照射ラインＡ１の位置よりも、シガレットの並び方向と直角な方向にずれを生じる。 However, when a certain cigarette in the cigarette bundle C is displaced in the axial direction, for example, the rightmost cigarette in the upper stage protrudes from a predetermined filter end face, an irradiation line of light formed on the end face of the cigarette as shown in FIG. The position of A4 is shifted in a direction orthogonal to the cigarette arrangement direction. That is, since the light irradiated to the cigarette array is irradiated from the direction perpendicular to the cigarette array direction and at a predetermined elevation angle θ with respect to the cigarette axial direction as described above, the end face of the cigarette is Due to the deviation in the axial direction, the formation position of the light irradiation line A4 is arranged more than the position of the light irradiation line A1 formed on the end face of the other cigarette (reference filter end face position). Deviation occurs in a direction perpendicular to the direction.
　ちなみに光の照射ラインＡ４の前記光の照射ラインＡ１からのずれ量Δは、該シガレットのフィルタ端面の前述した基準フィルタ端面位置からの飛び出し量をＢとしたとき、前記光の照射角（仰角）がθであるから［Δ＝Ｂtanθ］となり、光の照射角θが一定であるから該シガレットの軸方向への飛び出し量Ｂに比例する。 Incidentally, the amount of deviation Δ of the light irradiation line A4 from the light irradiation line A1 is the light irradiation angle (elevation angle) when the amount of protrusion of the filter end surface of the cigarette from the reference filter end surface position is B. Is [Δ = Btan θ], and the light irradiation angle θ is constant, and is proportional to the amount B of the cigarette protruding in the axial direction.
　尚、図６に示す例では、上段のシガレットの並びに対して斜め下方から光を照射しているので、光の照射ラインＡ４は光像Ａ１に対して下側にずれている。この点、中段および上段のシガレットの列に対しては、前述した図２および図３に示したように、シガレットの並びに対して斜め上方から光を照射しているので、これらの各段においてシガレットの軸方向に飛び出している場合には、改めて説明するまでもなく、その光の照射ラインは上側にずれることになる。 In addition, in the example shown in FIG. 6, since the light is irradiated obliquely from below the upper row of cigarettes, the light irradiation line A4 is shifted downward with respect to the optical image A1. In this respect, since the middle and upper cigarette rows are irradiated with light from obliquely above the cigarette rows as shown in FIG. 2 and FIG. In the case of projecting in the axial direction, the light irradiation line is shifted upward, without needing to be described again.
　図４に示した前記画像処理装置２０は、このような検査画像（光の照射ライン）を解析（分析）して、前述した如く軸方向に向きを揃えて横並びに配列されたシガレットの束Ｃにおける軸方向に不揃いなシガレットを、特に標準的なフィルタ端面から軸方向に飛び出したシガレットの有無を判定する役割を担う。特にこの実施形態おいては、前記画像処理装置２０は、複数本のシガレットの軸方向を揃えて横並びに７本、６本、７本とそれぞれ整列させて３段に積み重ねたシガレットの束Ｃにおける上段・中段・下段のシガレットの並びについて個別にシガレットの飛び出しを検出するべく、前記検査画像に対して３つのサーチ領域Ｓ１,Ｓ２,Ｓ３を設定し、これらのサーチ領域Ｓ１,Ｓ２,Ｓ３毎にシガレットの飛び出し検出処理を行うものとなっている。 The image processing apparatus 20 shown in FIG. 4 analyzes (analyzes) such an inspection image (light irradiation line) and, as described above, a cigarette bundle C arranged side by side in the axial direction. It plays a role of determining the presence or absence of cigarettes that are irregular in the axial direction, particularly the cigarettes that protrude in the axial direction from the standard filter end face. In particular, in this embodiment, the image processing apparatus 20 uses a cigarette bundle C that is stacked in three stages by aligning the axial direction of a plurality of cigarettes side by side and aligning them with 7, 6, and 7, respectively. Three search areas S1, S2, and S3 are set for the inspection image in order to detect the cigarette pop-out individually for the upper, middle, and lower cigarettes, and for each of these search areas S1, S2, and S3. Cigarette pop-out detection processing is performed.
　ここで前記画像処理装置２０について今少し詳しく説明すると、この画像処理装置２０は前記検査画像メモリ１４に記憶された検査画像に対して３つのサーチ領域Ｓ１,Ｓ２,Ｓ３を順に指定し、指定したサーチ領域Ｓ１（Ｓ２,Ｓ３）に含まれる画像を前記検査画像メモリ１４から選択的に読み出すサーチ領域設定部２１を備える。そして検査画像メモリ１４から読み出したサーチ領域画像毎に前述した光の照射ラインの検出を行うことで、該光の照射ラインに対する解析を実行する。 The image processing apparatus 20 will now be described in more detail. The image processing apparatus 20 designates three search areas S1, S2, and S3 in order for the inspection image stored in the inspection image memory 14, and specifies them. A search area setting unit 21 that selectively reads out images included in the search area S1 (S2, S3) from the inspection image memory 14 is provided. Then, the above-described light irradiation line is detected for each search area image read from the inspection image memory 14, thereby executing analysis on the light irradiation line.
　具体的にはライン検出部２２は、図７に示すように検査画像中の前述したサーチ領域Ｓについて、予め設定した大きさの画素（セグメント）毎にその輝度を判定し、高輝度な画素を前記光の照射部位として検出する。そしてライン検出部２２は、図７に示すように求められる高輝度な画素（セグメント）の連なりを、前述した直線状の光の照射によって形成された光の照射ラインＡとして検出する。ライン長計測部２３は、このようにして検出された光の照射ラインＡについて、例えば高輝度な画素（セグメント）の連なり個数として該光の照射ラインＡの長さとして検出する。そしてライン長判定部２４は光の照射ラインＡの長さが７本または６本のシガレットの並びの幅に相当するか否かを判定する。 Specifically, as shown in FIG. 7, the line detection unit 22 determines the brightness of each search area S in the inspection image for each pixel (segment) having a preset size, and selects a high brightness pixel. Detected as the light irradiation site. The line detection unit 22 detects a series of high-luminance pixels (segments) obtained as shown in FIG. 7 as the light irradiation line A formed by the linear light irradiation described above. The line length measuring unit 23 detects the light irradiation line A thus detected as, for example, the length of the light irradiation line A as a continuous number of high-luminance pixels (segments). Then, the line length determination unit 24 determines whether or not the length of the light irradiation line A corresponds to the arrangement width of seven or six cigarettes.
　ちなみにシガレット１本当たりのフィルタ径が前記光の照射ラインＡの１０～１１セグメントの長さに相当する場合、前記ライン長判定部２４は、照射ラインＡの長さが７０～７７セグメントであるとき、これを軸方向にずれを生じることなく７本のシガレットが横並びに整然と並べられているとして判定する。また照射ラインＡの長さが６０～６６セグメントであるとき、これを軸方向にずれを生じることなく６本のシガレットが横並びに整然と並べられているとして判定する（図５に示す状態）。 Incidentally, when the filter diameter per cigarette corresponds to the length of 10 to 11 segments of the light irradiation line A, the line length determination unit 24 determines that the length of the irradiation line A is 70 to 77 segments. Then, it is determined that the seven cigarettes are arranged side by side without causing any deviation in the axial direction. When the length of the irradiation line A is 60 to 66 segments, it is determined that the six cigarettes are arranged side by side without causing any deviation in the axial direction (the state shown in FIG. 5).
　しかし図６および図７にそれぞれ示すように、例えば各段のシガレットの並びにおいて、その並び方向と直角な方向にずれて複数の光の照射ラインが検出された場合、当然のことながらこれらの各照射ラインＡの長さが短くなり、シガレットの並びの標準的な幅に相当する７０～７７セグメント、或いは６０～６６セグメントに満たなくなる。そこで前記ライン長計測部２３は、長さの短い複数の光の照射ラインが、シガレットの並び方向と直角な方向にずれて検出された場合、これを軸方向にずれを生じたシガレットが存在するとして判定する。尚、シガレットの並びの方向と直角な方向にずれを生じなくても、途中の途切れによって１本のライン上に複数の光の照射ラインＡが検出された場合にも、照射ラインＡの長さが短くなる。 However, as shown in FIG. 6 and FIG. 7, for example, when a plurality of light irradiation lines are detected in a direction perpendicular to the arrangement direction in the arrangement of cigarettes at each stage, it is natural that The length of the irradiation line A becomes short, and it becomes less than 70 to 77 segments or 60 to 66 segments corresponding to the standard width of cigarettes. Therefore, the line length measuring unit 23, when a plurality of light irradiation lines having a short length is detected in a direction perpendicular to the arrangement direction of the cigarettes, there is a cigarette in which the deviation occurs in the axial direction. Judge as. The length of the irradiation line A even when a plurality of light irradiation lines A are detected on one line due to a break in the middle without causing a shift in a direction perpendicular to the direction of cigarette arrangement. Becomes shorter.
　一方、基準ライン設定部２５は、前述した如く検出された光の照射ラインＡの内、最も長い照射ラインに着目し、その照射ラインＡに重ねて図７に示すように基準ラインＸを設定する。そしてずれ量検出部２６は、上記基準ラインＸを基準位置として複数の光の照射ラインＡの上記基準ラインＸからのずれ量Δをそれぞれ求める。このずれ量Δは、前述したようにシガレットの軸方向のずれ量に相当したものである。そしてずれ量判定部２７は、そのずれ量がシガレットのの束Ｃを包装材Ｐにて包装する際、その封口の妨げにならないか否か、或いは封口によってシガレットにダメージを与えることのない許容範囲内であるか否かを判定する。 On the other hand, the reference line setting unit 25 pays attention to the longest irradiation line among the light irradiation lines A detected as described above, and sets the reference line X so as to overlap the irradiation line A as shown in FIG. . Then, the deviation amount detection unit 26 obtains deviation amounts Δ of the plurality of light irradiation lines A from the reference line X using the reference line X as a reference position. This deviation amount Δ corresponds to the amount of deviation of the cigarette in the axial direction as described above. And the deviation | shift amount determination part 27 is the tolerance | permissible_range whether the deviation | shift amount does not interfere with the cigarette by the sealing, when the bundle C of cigarettes is packaged with the packaging material P It is determined whether it is in.
　尚、光の照射ラインＡが１本しか検出されない場合には、この１本の光の照射ラインＡ上に重ねて前記基準ラインＸが設定され、該照射ラインＡのずれ量は［０］として検出される。また前記基準ラインＸ上に途切れを生じながら複数の照射ラインＡか存在する場合にも、これらの照射ラインＡのずれ量はそれぞれ［０］として検出されることは言うまでもない。 When only one light irradiation line A is detected, the reference line X is set so as to overlap the light irradiation line A, and the deviation amount of the irradiation line A is set to [0]. Detected. Needless to say, even when there are a plurality of irradiation lines A while causing breaks on the reference line X, the deviation amounts of these irradiation lines A are respectively detected as [0].
　しかして欠陥判定部２８は、上述した如くシガレットの束Ｃにおける上段・中段・下段の各サーチ領域毎に前記ずれ量判定部２７にて判定された複数の光の照射ラインＡの前記基準ラインＸからのずれ量Δの判定結果、および前述したライン長判定部２４にて判定された光の照射ラインＡの長さについての判定結果を総合判定する。そして欠陥判定部２８は、前述したマンドレル７に収容されて包装材Ｐによる包装に供されるシガレットの束Ｃが、軸方向にずれを生じたシガレットを含むか否かを判定する。そして欠陥判定部２８は、整列異常と判定したシガレットの束Ｃを、その封口に支障を来す虞があるとして前記包装機から排除するべく指令を発する。 Accordingly, the defect determination unit 28 determines the reference line X of the plurality of light irradiation lines A determined by the shift amount determination unit 27 for each of the upper, middle, and lower search regions in the cigarette bundle C as described above. And the determination result of the length of the irradiation line A of light determined by the above-described line length determination unit 24 are comprehensively determined. And the defect determination part 28 determines whether the cigarette bundle C accommodated in the mandrel 7 mentioned above and used for the packaging by the packaging material P contains the cigarette which produced the shift | offset | difference to the axial direction. Then, the defect determination unit 28 issues a command to exclude the cigarette bundle C determined to be misaligned from the packaging machine as there is a risk of hindering the sealing.
　以上のようにしてシガレットの束Ｃに対して斜め方向から照射され、各段のシガレットの並びのフィルタ面に形成された直線状の光の照射ラインＡの長さと、光の照射ラインＡの基準ラインＸからのずれ量Δを判定するシガレット検査装置によれば、シガレットの束Ｃにおける軸方向にずれを生じたシガレットの有無を判定簡易にして確実に検出することができる。特に直線状の光の照射によって形成される光の照射ラインＡを検出し、その形成状態を判定すると言う簡易な画像処理だけで、シガレットの束Ｃにおける標準的なフィルタ端面から飛び出したシガレットの存在を確実に検出することができ、またその画像処理負担も少ないと言う効果が奏せられる。 As described above, the length of the linear light irradiation line A formed on the filter surface of the cigarettes arranged in each stage and obliquely applied to the cigarette bundle C and the reference of the light irradiation line A are as follows. According to the cigarette inspection apparatus that determines the amount of deviation Δ from the line X, the presence or absence of a cigarette that has a deviation in the axial direction in the cigarette bundle C can be easily and reliably detected. In particular, the presence of a cigarette that protrudes from a standard filter end face in a bundle C of cigarettes by simply detecting a light irradiation line A formed by linear light irradiation and determining its formation state. Can be reliably detected, and the image processing load is small.
　尚、本発明は上述した実施形態に限定されるものではない。ここでは軸方向を揃えて複数のシガレットを横並びに７本、６本、７本とそれぞれ整列させて３段に積み重ねたシガレットの束Ｃの検査を例に説明したが、シガレットを横並びに５本ずつ整列させて２段に積み重ねた１０本組のシガレットの束Ｃや、１段だけの５本組のシガレットの束Ｃについても同様に検査を実行することができる。 Note that the present invention is not limited to the embodiment described above. Here, the example of the inspection of the cigarette bundle C in which the plurality of cigarettes are aligned side by side and aligned in a row with 7, 6, and 7 cigarettes is described as an example. The inspection can be similarly performed on the bundle C of ten cigarettes that are aligned and stacked in two stages or the bundle C of five cigarettes of only one stage.
　またここではシガレット検査装置を包装機に組み込んだ例について示したが、前述したようにフィルタ付きシガレットの製造ラインに適宜組み込むことができる。更に前述した基準ラインＸ上にシガレット１本分の途切れを挟んで２本の光照射ラインが検出された場合、例えば上記途切れ部分のシガレットのフィルタが欠損しているとして、前述した飛び出し以外の整列異常を判定することもできる。その他、本発明はその要旨を逸脱しない範囲で種々変形して実施することができる。 In addition, here, an example in which the cigarette inspection device is incorporated into a packaging machine has been shown, but as described above, it can be incorporated into a production line for a cigarette with a filter as appropriate. Further, when two light irradiation lines are detected on the above-mentioned reference line X with a break for one cigarette, for example, it is assumed that the filter of the cigarette at the break portion is missing, and the alignment other than the above-described jumping is performed. Abnormality can also be determined. In addition, the present invention can be variously modified and implemented without departing from the scope of the invention.
　１０　　カメラ
　１３ａ,１３ｂ,１３ｃ　ライン光源
　１４　検査画像メモリ
　２０　画像処理装置
　２２　ライン検出部
　２３　ライン長計測部
　２４　ライン長判定部
　２５　基準ライン設定部
　２６　ずれ量検出部
　２７　ずれ量判定部
　２８　欠陥判定部 DESCRIPTION OF SYMBOLS 10 Camera 13a, 13b, 13c Line light source 14 Inspection image memory 20 Image processing apparatus 22 Line detection part 23 Line length measurement part 24 Line length determination part 25 Reference line setting part 26 Deviation amount detection part 27 Deviation amount determination part 28 Defect determination part

Claims (5)

  1. 　軸方向を揃えて横並びに配列されたフィルタ付きシガレットの束における軸方向に不揃いなシガレットの有無を検査するシガレット検査装置であって、
    　前記シガレットの束におけるシガレットの並び方向と直交し、且つシガレットの軸方向に対して所定の仰角をなす向きから該シガレットの並び方向に沿って延びる直線状の光を照射するライン光源と、
    　前記直線状の光が照射された前記シガレットの束のフィルタ面を前記シガレットの軸方向から撮像するカメラと、
    　前記カメラにより撮像された画像から前記シガレットの束のフィルタ面上に形成された前記光の照射ラインを解析して前記シガレットの束からのシガレットの整列状態を判定する判定手段と、を具備したことを特徴とするシガレット検査装置。     A cigarette inspection device that inspects for the presence or absence of cigarettes that are uneven in the axial direction in a bundle of cigarettes with filters that are aligned side by side in the axial direction,
    A line light source that irradiates linear light extending along the cigarette arrangement direction from a direction perpendicular to the cigarette arrangement direction in the cigarette bundle and forming a predetermined elevation angle with respect to the cigarette axial direction;
    A camera that images the filter surface of the bundle of cigarettes irradiated with the linear light from the axial direction of the cigarette;
    Determination means for analyzing an irradiation line of the light formed on the filter surface of the cigarette bundle from an image captured by the camera and determining an alignment state of the cigarette from the cigarette bundle. Cigarette inspection device characterized by this.
  2. 　前記判定手段は、前記シガレットの並び方向と直交する向きにずれた複数の光の照射ラインが存在するか否かを検出し、複数の光の照射ラインが検出される場合にはそのずれ量を判定してシガレットの飛び出しを検出するものである請求項１に記載のシガレット検査装置。 The determination means detects whether or not there are a plurality of light irradiation lines that are shifted in a direction orthogonal to the direction in which the cigarettes are arranged. If a plurality of light irradiation lines are detected, the amount of shift is detected. The cigarette inspection device according to claim 1, wherein the cigarette intrusion is determined and detected.
  3. 　前記フィルタ付きシガレットの束は、軸方向を揃えて横並びに配列したフィルタ付きシガレットを多段に有するものであって、前記ライン光源は各段のシガレットの並びにそれぞれ対応して設けられ、
    　前記判定手段は、軸方向を揃えてフィルタ付きシガレットを横並びに配列した段毎に判定処理を実行するものである請求項１または２に記載のシガレット検査装置。     The bundle of cigarettes with filters has multiple stages of cigarettes with filters arranged side by side with the axial direction aligned, and the line light source is provided corresponding to each of the cigarettes of each stage,
    The cigarette inspection apparatus according to claim 1 or 2, wherein the determination means executes determination processing for each stage in which cigarettes with filters are arranged side by side with the axial direction aligned.
  4. 　前記ライン光源は、前記カメラに重ねて設けられて、一方向に扇形に拡がるレーザ光を射出するレーザ光源からなる請求項１に記載のシガレット検査装置。 2. The cigarette inspection apparatus according to claim 1, wherein the line light source is a laser light source that is provided so as to overlap the camera and emits a laser beam that expands in a fan shape in one direction.
  5. 　前記判定手段は、更に前記光の照射ラインの長さから前記フィルタ付きシガレットの横並び本数を判定する第２の手段を備えることを特徴とする請求項１または２に記載のシガレット検査装置。
          3. The cigarette inspection apparatus according to claim 1, wherein the determination unit further includes a second unit that determines the number of side-by-side cigarettes with a filter from the length of the light irradiation line.
PCT/JP2010/065791 2010-09-14 2010-09-14 Cigarette inspection device WO2012035608A1 (en)

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CN109564171A (en) * 2016-06-22 2019-04-02 吉地股份公司 The transmitting of elongated elements group and inspection unit
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CN115762091A (en) * 2022-12-05 2023-03-07 湖北中烟工业有限责任公司 Early warning method, device, terminal and storage medium based on cigarette flying of tipping machine drum wheel

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