JP2020006994A - Broken bottle detection device and broken bottle detection method - Google Patents

Abstract

To provide a broken bottle detection device and a broken bottle detection method capable of ensuring detection of a bottle broken after content inspection.SOLUTION: This broken bottle detection device is for detecting a bottle B broken after injection of a beer liquid B3 and content inspection, and comprises: an irradiation unit 23 that irradiates the bottle B with light C obliquely to the liquid surface B4 of the beer liquid B3 injected into the bottle B yet to be broken; and a detection unit 24 that detects the light C applied from the irradiation unit 23 and passed through the broken bottle B but not through the beer liquid B3.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a broken bottle detection device and a broken bottle detection method for detecting a broken bottle.

  2. Description of the Related Art Various types of detection devices and detection methods for detecting abnormality of a bottle such as a beer bottle have been known. Japanese Patent Application Laid-Open No. 2002-53198 describes a method for producing bottled beer using a taste detection device. The filling amount inspection device is a device for inspecting whether or not the amount of beer and the height of foam inside the beer bottle are within a specified range. It is determined as a defective product and the defective product is rejected.

  The container inspection device includes a photoelectric sensor and a CCD camera on a line for continuously transporting a beer bottle. The photoelectric sensor has a light emitting unit that emits light in a direction that intersects the direction in which the beer bottle is conveyed, and a light receiving unit that is disposed on the opposite side of the light emitting unit across the line. The photoelectric sensor is arranged at the height of the crown of the beer bottle, and the CCD camera is arranged at the height of the neck of the beer bottle. The CCD camera takes an image of the neck of the beer bottle, and the image signal of the image taken by the CCD camera is taken into the image processor inspection processing unit.

  The image processing device inspection processing unit includes a dividing unit that divides image data acquired by the CCD camera into a plurality of detection areas, and an inspection unit that detects a liquid level and a bubble surface for each divided detection area. The inspection means determines whether each of the detected liquid level and foam level is within a specified range. Inspection means is determined as `` insufficient '' when each of the liquid level and the foam level is lower than the specified range, and is determined as `` excessive '' when each of the liquid level and the foam level is higher than the specified range, When only the foam surface is higher than the specified range, it is determined that “abnormal foam height”. If the inspection means determines "insufficient", "excess", or "abnormal foam height", the bottle is determined to be defective and rejected from the line.

JP-A-2002-53198

  After performing the taste inspection in the above-mentioned taste inspection device, the bottle is conveyed to the caser via the labeler and packed in the caser by the caser. By the way, there may be a single row where only one bottle can be conveyed from the downstream side of the container inspection device to the caser in the bottle conveyance path. The bottles may break against each other at such a single row. In this case, since the bottle breaks after the taste inspection is performed by the taste inspection device, the broken bottle may not be detected. In particular, in the case of a partially broken bottle while maintaining its external shape, the bottle may be transported to the caser via the labeler, and the broken bottle may be packed in a box by the caser. Therefore, it is required to reliably detect and reject a broken bottle after the taste inspection.

  Further, when the liquid level of a bottle is detected by an image processing device like the above-mentioned CCD camera, there are problems that it takes time and cost, and it is difficult to dispose the bottle in a limited space because the equipment is large. Since various devices such as cameras are arranged in a labeler or the like located downstream of the loading amount inspection device in the transport path, it is difficult to arrange a large-scale image processing device. Therefore, it is required that a broken bottle can be detected with a simple configuration.

  An object of the present invention is to provide a broken bottle detection device and a broken bottle detection method that can reliably detect a broken bottle after a taste inspection with a simple configuration.

  A broken bottle detection device according to the present invention is a broken bottle detection device that detects a broken bottle after a beverage is injected and a taste inspection is performed, and a liquid level of the beverage injected into an unbroken bottle. An irradiation unit that irradiates the bottle with light so as to be inclined with respect to the bottle, and a detection unit that detects light that is emitted from the irradiation unit and passes through the broken bottle and does not pass through the beverage.

  The broken bottle detection device includes an irradiation unit that irradiates light to the bottle that has undergone the taste inspection, and a detection unit that detects light that has been irradiated from the irradiation unit and has passed through the broken bottle and has not passed through the beverage. Therefore, by detecting the light that passes through the broken bottle and does not pass through the beverage, the detecting unit can detect the broken bottle after the taste inspection. That is, of the light emitted from the irradiation unit, light that passes through the unbroken bottle is refracted by passing through the beverage and does not reach the detection unit. On the other hand, the light that passes through the broken bottle and does not pass through the beverage does not refract and travels straight through the inner space of the bottle, and thus reaches the detection unit. Therefore, the broken bottle can be reliably detected by the detection unit. In addition, since the light from the irradiating unit is irradiated obliquely to the liquid surface of the beverage when the bottle is not broken, the light can be surely refracted at the beverage. Furthermore, since the bottle detection device includes an irradiation unit and a detection unit and does not require an image processing device, it can have a simple configuration. Therefore, the cost for the bottle breaking detector can be reduced, and the bottle breaking detector can be easily arranged in a limited space downstream of the container inspection device in the transport path.

  Further, the bottle may be colored and transparent. Thus, even if the bottle is colored, a broken bottle can be reliably detected by transmitting light through the bottle.

  Further, the irradiating unit may irradiate the light obliquely upward to the bottle, and the detecting unit may detect the light irradiated by the irradiating unit obliquely from below. In this case, when viewed from the bottle, the irradiation unit is disposed diagonally below and the detection unit is disposed diagonally upward. By arranging the detection unit obliquely upward when viewed from the bottle, the detection unit can be easily installed, and the detection unit can be made hard to become dirty. Therefore, the accuracy of detecting the broken bottle by the detection unit can be further improved.

  Further, the detection unit may detect light passing through a bottle whose shoulder is broken and a beverage leaks from the shoulder. In this case, since the detection unit detects light passing through the bottle with the broken shoulder while maintaining the external shape, the bottle with the broken shoulder can be reliably detected after the taste inspection is performed. Therefore, it is possible to prevent the bottle with the broken shoulder from being conveyed to the caser, so that the bottle with the broken shoulder can be avoided from being packed in a box.

  In addition, the irradiation unit and the detection unit may be arranged on a labeler that labels a bottle. In this case, since the irradiation unit and the detection unit are provided on the labeler for attaching a label to each bottle, the detection of broken bottles can be performed with higher accuracy for each bottle. Further, on the downstream side of the container inspection device in the transport path, the bottle breaker is disposed in a labeler in which the bottle is fixed and the beverage inside the bottle has relatively little fluctuation. By the way, in the labeler which is just after the final single row as a process, there is a possibility that the bottle is easily broken due to the impact of the single row. On the other hand, in the labeler, the liquid level inside the bottle fluctuates due to the rotation of the bottle, but the direction of the liquid surface is kept constant by the centrifugal force. By detecting a broken bottle with this labeler, erroneous detection of a broken bottle can be suppressed more reliably.

  The broken bottle detection method according to the present invention is a broken bottle detection method for detecting a broken bottle after a beverage is injected and a taste inspection is performed, and a liquid level of the beverage injected into an unbroken bottle. A step of irradiating the bottle with light so as to be oblique with respect to, and a step of detecting light that has been irradiated in the step of irradiating light and has not passed through the beverage while passing through the broken bottle. .

  In this broken bottle detection method, light is irradiated toward the bottle that has undergone the taste inspection, and light that passes through the broken bottle and does not pass through the beverage is detected. Bottles can be reliably detected. In addition, since the light is applied obliquely to the liquid surface of the beverage when the bottle is not broken, the light can be surely refracted at the beverage. Therefore, light passing through the unbroken bottle can be refracted at the beverage portion so as not to be detected, and light traveling straight in the internal space of the broken bottle can be detected. Further, in this broken bottle detection method, light is used for detecting a broken bottle, and an image processing device is not required, so that a simple configuration can be achieved. Therefore, it is possible to reduce the cost of detecting the broken bottle after the taste inspection and to easily arrange the apparatus in a limited space downstream of the depth inspection apparatus in the transport path.

  ADVANTAGE OF THE INVENTION According to this invention, the broken bottle can be reliably detected with a simple structure after a taste inspection.

It is a figure which shows typically an example of the drink manufacturing system provided with the broken bottle detection apparatus which concerns on embodiment. It is a figure which shows an example of the labeler of the beverage manufacturing system of FIG. 1 typically. (A) is a side view which shows an example of the large bottle which is a bottle with a shoulder. (B) is a figure which shows an example of the middle bottle which is a bottle without a shoulder. It is a figure which shows typically an example of the detection part of the broken bottle detection apparatus which concerns on embodiment. It is a figure showing typically an irradiation part, a bottle, and a detection part of a bottle breaking detection device concerning an embodiment. (A) is a diagram showing light passing through an unbroken bottle and passing through a beverage. (B) is a diagram showing light passing through the broken bottle and not passing through the beverage. FIG. 7A is a diagram illustrating an example of a waveform of a detection signal in the case of FIG. FIG. 6B is a diagram illustrating an example of a waveform of a detection signal in the case of FIG. (A) is a figure which shows the example which detects the bottle which the part facing an irradiation part was broken. (B) is a figure which shows the example which detects the bottle which the left side with respect to the optical path of the light from an irradiation part was broken. (C) is a figure which shows the example which detects the bottle which the right side with respect to the optical path of the light from an irradiation part was broken. (D) is a figure which shows the example which detects the bottle which the part facing the detection part was broken.

  Hereinafter, embodiments of a broken bottle detection apparatus and a broken bottle detection method according to the present invention will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements have the same reference characters allotted, and redundant description will not be repeated. In addition, the drawings may be simplified or exaggerated for easy understanding, and dimensions and angles are not limited to those described in the drawings.

  In the present embodiment, an example will be described in which a broken bottle is detected for a bottle into which a beverage is injected. Drinks to be injected into bottles include, for example, liquids such as beer, low-malt beer, wine, plum wine, RTD (Ready To Drink), juice, milk, soft drinks, soy milk drinks, lactic acid drinks, and sports drinks, jelly, yogurt, and pudding. , Soups, liquid foods, and tofu. In the following description, an example in which the beverage to be injected into the bottle is beer and the bottle is a beer bottle will be described.

  First, a beverage manufacturing system 1 provided with a broken bottle detection device according to the present embodiment will be described with reference to FIG. The beverage manufacturing system 1 is, for example, for conveying the bottle B (see FIGS. 3A and 3B), cleaning the bottle B, injecting the beverage into the bottle B, sealing the bottle B, and filling the bottle B. Labeling, inspection of bottle B, and packing of bottle B are performed continuously. The beverage manufacturing system 1 includes a finish inspection unit 2 that performs a taste inspection of the bottle B into which the beverage is injected, a labeler 10, a caser 4, and a missing bottle inspection unit 5.

  The finish inspection unit 2 is, for example, a filling amount inspection device provided on the downstream side of the transport path L of the filler for filling the bottle B with the beverage. The transport path L is, for example, a plurality of first transport lines L1 provided with each of the plurality of finish inspection units 2 and a second transport line L2 that joins downstream of the plurality of first transport lines L1 and extends to the labeler 10. And a third transport line L3 extending from the labeler 10 to the caser 4 and a fourth transport line L4 extending from the caser 4 to the missing bottle inspection unit 5. Note that the first transport line L1, the second transport line L2, the third transport line L3, and the fourth transport line L4 of the transport path L are merely examples, and the configuration of the transport path of the beverage manufacturing system 1 can be changed as appropriate. is there.

  The finish inspection unit 2 performs a taste inspection on the bottle B into which the beverage is injected by the filler. In the taste inspection, for example, an inspection is performed to determine whether or not the amount of the beverage injected into the bottle B is within a specified range, and a foreign substance inspection in the bottle B (a foreign substance inspection inside the bottle B) is performed. You may. The bottle B on which the taste inspection has been performed in each of the plurality of finish inspection units 2 is transported from the first transport line L1 to the second transport line L2.

  The second transport line L2 has a first portion L21 where the plurality of first transport lines L1 join, and a second portion L22 extending from the downstream side of the first portion L21 to the labeler 10. Between the first part L21 and the second part L22, there is provided a narrow part L23 which becomes narrower from the first part L21 toward the second part L22, and the second part L22 is formed in a single row. I have. That is, in the second portion L22, the bottles B are transported one by one. Since the narrow portion L23 and the second portion L22 are locations where the plurality of bottles B are arranged in a single row, there is a current situation in which broken bottles are likely to occur at the locations where the bottles B are arranged in a single row. The broken bottle detection device according to the present embodiment can detect a broken bottle generated on the upstream side of the labeler 10 in which the plurality of bottles B are arranged in a single row. The details of the labeler 10 will be described later.

  A third transport line L3 of the transport path L extends from the labeler 10, and the third transport line L3 includes, for example, a first portion L31 located on the upstream side (the labeler 10 side) and a downstream side (the caser 4 side). ) And the second portion L32. Between the first portion L31 and the second portion L32, there is provided a wide portion L33 which becomes wider from the first portion L31 toward the second portion L32. The caser 4 is provided downstream of the second portion L32, and collectively packs a plurality of bottles B transported along the third transport line L3. The missing bottle inspection unit 5 inspects whether or not a predetermined number (for example, 12) of bottles B are contained in a box filled with a plurality of bottles B by the caser 4.

  Next, the labeler 10 for attaching a label to the bottle B will be described in detail. As shown in FIG. 2, the labeler 10 includes a line 11 extending in an arc shape from the downstream side of the second row L <b> 22 of the single line of the second transport line L <b> 2 and a direction opposite to the line 11 from the line 11. A line 12 that curves, a line 13 that attaches a label to the bottle B, and a line 14 that extends from the line 13 to the first portion L31 of the third transport line L3 are provided. The lines 11 to 14 of the labeler 10 are merely examples, and the configuration of the line of the labeler 10 can be changed as appropriate. The line 11 and the line 12 have, for example, an inverted S shape, and the line 13 is provided downstream of the line 12. In addition, an exclusion line L5 for the bottle B determined to be unsuitable by the inspection may be provided.

  The line 13 of the labeler 10 has a circular shape, and the line 13 is provided with, for example, a plurality of heads 13a. The bottle B can be fixed by placing the bottle B on each of the plurality of heads 13a. As an example, 36 heads 13a are provided on the line 13 at equal intervals in the circumferential direction of the line 13, and the 36 heads 13a are arranged with a phase angle of 10 °. Further, the labeler 10 includes a star wheel (not shown) for moving the bottle B to the line 13, and each bottle B is placed on each head 13a by the star wheel.

  The line 13 is provided with a label inspection unit 15 for inspecting the label attached to the bottle B, and the broken bottle detection device 20 according to the present embodiment. The label inspection unit 15 is provided on the downstream side of the entrance of the line 13 (the portion of the star wheel), and the broken bottle detecting device 20 is provided on the line 13 downstream of the label inspection unit 15.

  For example, the bottle breaking detection device 20 is provided between the twelfth head and the thirteenth head counted from the entrance of the line 13. Further, when rotating from the twelfth head (pitch) to the thirteenth head (pitch), the VARICAM value changes from 0 to 360. When the VARICAM value 0 of the first head (pitch) is set to the 0 ° position, the VARICAM value 0 of the 12th head has a rotation angle of 120 °, and the VARICAM value 0 of the 13th head has a rotation angle of 130 °. For example, since the position of the bottle breaking detection device 20 is between the VARICAM values 205 and 240 of the twelfth head, the position is represented by a rotation angle of about 125.7 ° to 126.7 °.

  As an example, eight heads 13 a may be provided between the label inspection unit 15 and the entrance of the line 13, or twelve heads 13 a may be provided between the label detection unit 20 and the entrance of the line 13. It may be provided. However, the positions of the label inspection unit 15 and the broken bottle detection device 20 can be appropriately changed. The line 14 extends in an arc shape from the downstream end of the line 13, and the downstream side of the line 14 is connected to the first portion L31 of the third transport line L3. Further, the nonconforming product by the inspection is, for example, rejected to the rejection line L5.

  Next, the bottle detecting device 20 will be described in detail. As shown in FIG. 2, FIG. 3 (a) and FIG. 3 (b), the bottle B includes, for example, a large bottle B1 and a medium bottle B2, and the bottle detecting device 20 detects the broken large bottle B1. 1 and a second broken bottle detecting device 22 for detecting a broken middle bottle B2. Each of the first bottle detecting device 21 and the second bottle detecting device 22 detects, for example, a large bottle B1 and a medium bottle B2 each having a broken shoulder K. The large bottle B1 and the middle bottle B2 (bottle B) are colored and transparent, and as an example, brown transparent.

  The “shoulder portion of the bottle” refers to a bottle having a diameter-enlarging portion that gradually increases in diameter from above and a body portion that extends downward from below the diameter-enlarging portion. Includes the part of the bottle near the border. Since the bottle breaking detector 20 detects the bottle B in which the shoulder K is broken in the labeler 10, the shoulder breaker is located on the downstream side of the above-mentioned finish inspection unit 2 (for example, a single row portion of the second transport line L2). Even if a bottle B with a broken K occurs, the bottle B with a broken shoulder K can be reliably removed. The first bottle detecting device 21 and the second bottle detecting device 22 have configurations similar to each other, except for the tilt angle θ2 of the light C (see FIG. 5) described later. Therefore, the description of the second bottle detecting device 22 that overlaps with the first bottle detecting device 21 will be appropriately omitted below.

  As shown in FIGS. 4 and 5, the first broken bottle detecting device 21 (the second broken bottle detecting device 22) is a light emitting / receiving photoelectric sensor. The first broken bottle detection device 21 includes an irradiation unit 23 that irradiates the bottle B conveyed along the line 13 of the labeler 10 with light C, and a detection unit 24 that detects the light C. For example, the irradiation unit 23 is disposed obliquely below the liquid level B4 of the beer liquid B3 (beverage) of the unbroken bottle B and inside the line 13, and the detection unit 24 is disposed obliquely above the liquid level B4. And outside the line 13. The irradiation unit 23 irradiates the light C obliquely upward toward the liquid level B4 of the beer liquid B3 in the unbroken bottle B.

  For example, the inclination angle θ2 of the light C from the irradiation unit 23 with respect to the horizontal plane H is not less than 45 ° and not more than 65 ° in the first breaking bottle detection device 21 for detecting the large bottle B1, and is equal to or smaller than the second breaking angle for detecting the middle bottle B2. In the bottle detecting device 22, the angle is 30 ° or more and 50 ° or less. More preferably, the inclination angle θ2 of the light C from the irradiation unit 23 of the first bottle detection device 21 is 50 ° or more and 60 ° or less (56 ° as an example), and the irradiation unit of the second bottle detection device 22. The inclination angle θ2 of the light C from 23 is 35 ° or more and 45 ° or less (41 ° as an example).

  The detection unit 24 detects the light C that passes through the inside of the bottle B and does not refract in the beer liquid B3 (goes straight through the internal space B5 formed by the crack of the bottle B). For example, the detecting unit 24 includes a base 24a installed outside the line 13 and a sensor position adjusting unit 24b that is movable with respect to the base 24a in a radial direction of the line 13 (a direction approaching and separating from the bottle B). And a sensor height adjusting portion 24c movable vertically (in a vertical direction) with respect to the sensor position adjusting portion 24b, and rotatably fixed about a shaft 24d extending in a horizontal direction with respect to the sensor height adjusting portion 24c. And a sensor angle adjustment unit 24e.

  A bottle detection sensor 24f and a bottle breaking sensor 24g are fixed to the sensor angle adjusting unit 24e, and the light C described above is detected by the bottle breaking sensor 24g. The bottle detection sensor 24f is, for example, a light emitting / receiving photoelectric sensor, and detects that there is a bottle by blocking light, and detects that there is no bottle by not blocking light. That is, the bottle detection sensor 24f is a sensor that detects whether or not the bottle B exists in the detectable region located between the irradiation unit 23 and the detection unit 24.

  Next, a method for detecting a broken bottle according to the present embodiment will be described with reference to FIGS. 6 (a), 6 (b), 7 (a) and 7 (b). FIG. 6A is a diagram showing an optical path of light C irradiated on a bottle B that is not broken from the irradiation unit 23, and FIG. 6B is a diagram illustrating a bottle B that is broken from the irradiation unit 23 (for example, a shoulder K is broken). FIG. 4 is a diagram showing an optical path of light C applied to a shoulder bottle.

  FIG. 7A is a diagram showing an example of a waveform of a detection signal of the light C irradiated on the unbroken bottle B by the detection unit 24, and FIG. FIG. 5 is a diagram showing an example of a waveform of a detection signal by the detection unit 24 of FIG. 7A and 7B, a broken line indicates a waveform of a detection signal of the bottle detection sensor 24f, a solid line indicates a detectable region of a broken bottle, and a dashed line indicates a waveform of a detection signal of the broken bottle sensor 24g. Is shown.

  First, light C is irradiated obliquely upward from the irradiation unit 23 toward the bottle B (a step of irradiating light to the bottle). As shown in FIGS. 6A and 7A, when the light C is irradiated from the irradiation unit 23 toward the liquid level B4 of the beer liquid B3 of the unbroken bottle B, the bottle is removed from the air. Since the refraction angle θ4 of the beer liquid B3 is smaller than the incident angle θ3 of the light C to B, the light C is refracted by the beer liquid B3 and the detection unit 24 does not receive the light C. Specifically, after the bottle detecting sensor 24f of the detecting unit 24 detects the bottle B at the time t1, the bottle detecting sensor 24g detects that the light C does not receive the light C at the time t2. It detects that B is not broken.

  On the other hand, as shown in FIGS. 6B and 7B, when the light C is irradiated from the irradiation unit 23 to the broken bottle B, the beer liquid is applied to the portion where the light C is irradiated. Since B3 does not exist, the light C does not refract and goes straight through the internal space B5 of the bottle B, so that the detection unit 24 receives the light C (a step of detecting light that has not passed through the beverage). Specifically, after the bottle detecting sensor 24f of the detecting unit 24 detects the bottle B at the time t1, the bottle detecting sensor 24g detects that the light C is received at the time t2. The broken bottle B is detected. The broken bottle B detected by the detection unit 24 is rejected, for example, in the middle of the line of the labeler 10. As a specific example, the broken bottle B is rejected to the rejection line L5. Further, when a broken bottle B is detected, the line may be stopped when the broken bottle B flows along the third transport line L3 which is a non-defective line after being detected as abnormal.

  Next, the operation and effect of the broken bottle detection device 20 and the broken bottle detection method according to the present embodiment will be described. In the broken bottle detection device 20 and the broken bottle detection method according to the present embodiment, the irradiation unit 23 that irradiates the light C toward the bottle B that has undergone the taste inspection, the bottle B that has been irradiated and broken by the irradiation unit 23, and A detection unit 24 that detects the light C that has not passed through the beer liquid B3. Therefore, by detecting the light C that passes through the broken bottle B and does not pass through the beer liquid B3, the detecting unit 24 can detect the broken bottle B after the taste inspection.

  That is, of the light C emitted from the irradiation unit 23, the light C passing through the unbroken bottle B and passing through the beer liquid B3 is refracted by the beer liquid B3 and does not reach the detection unit 24. In contrast, the light C that has passed through the broken bottle B and has not passed through the beer liquid B3 does not refract and travels straight through the internal space B5 of the bottle B, and thus reaches the detection unit 24. Therefore, the broken bottle B can be reliably detected by the detection unit 24. Further, the broken bottle detecting device 20 includes a first broken bottle detecting device 21 for detecting a broken large bottle B1 and a second broken bottle detecting device 22 for detecting a broken medium bottle B2. Therefore, both the broken large bottle B1 and the broken middle bottle B2 can be reliably detected.

  In addition, since the light C from the irradiation unit 23 is irradiated obliquely to the liquid level B4 of the beer liquid B3 when the bottle B is not broken, the light C can be surely refracted at the part of the beer liquid B3. it can. Furthermore, since the bottle detection device 20 includes the irradiation unit 23 and the detection unit 24 and does not require large-scale equipment such as an image processing device, the configuration can be simplified. Therefore, the cost of the bottle breaking detection device 20 can be reduced, and the bottle breaking detection device 20 can be easily arranged in a limited space downstream of the finish inspection unit 2 in the transport path L.

  The bottle B is colored and transparent. Thus, even if the bottle B is colored, the broken bottle B can be reliably detected by transmitting the light C through the bottle B. Furthermore, in this embodiment, since the bottle B is a beer bottle and is transparent and brown, it may be difficult to visually confirm the bottle B. However, in this embodiment, even if the bottle B is brown and transparent, the broken bottle B can be reliably detected by transmitting the light C through the bottle B.

  Further, the irradiation unit 23 irradiates the bottle B with the light C obliquely upward, and the detection unit 24 detects the light C radiated by the irradiation unit 23 from obliquely below. Therefore, when viewed from the bottle B, the irradiation unit 23 is disposed obliquely downward and the detection unit 24 is disposed obliquely upward. By arranging the detection unit 24 obliquely upward when viewed from the bottle B, the detection unit 24 can be easily installed and the detection unit 24 can be made hard to be stained. Therefore, the accuracy of detecting the broken bottle B by the detection unit 24 can be further improved.

  In addition, the detection unit 24 detects light C that has passed through the bottle B in which the shoulder K has been broken and the beer liquid B3 has leaked from the shoulder K. Therefore, since the detection unit 24 detects the light C that has passed through the bottle B with the shoulder K broken while the outer shape is maintained, the bottle B with the shoulder K broken is surely detected after the taste inspection is performed. be able to. Therefore, it is possible to prevent the bottle B having the broken shoulder K from being conveyed to the caser 4 and to prevent the bottle B having the broken shoulder K from being packed in a box.

  Further, as shown in FIG. 2, the irradiation unit 23 and the detection unit 24 are arranged on the labeler 10 that attaches a label to the bottle B. Therefore, by providing the irradiation unit 23 and the detection unit 24 on the labeler 10 that applies a label to each bottle B, the detection of broken bottles is performed with higher accuracy for each bottle B. be able to. Further, on the downstream side of the finishing inspection section 2 in the transport path L, the bottle B is fixed, and the broken bottle detecting device 20 is arranged at a position where the beer liquid B3 sways inside the bottle B relatively little. By the way, in the labeler 10 which is immediately after the final single row as a process, there is a possibility that the bottle is easily broken due to the impact of the single row. On the other hand, in the labeler 10, since the liquid level B4 inside the bottle B fluctuates to rotate the bottle B, the direction of the liquid level B4 is kept constant by centrifugal force, so that the labeler 10 is suitable as a broken bottle detection point. . Therefore, by detecting the broken bottle with the labeler 10, erroneous detection of the broken bottle can be suppressed more reliably.

  As mentioned above, although the embodiment of the broken bottle detection apparatus and the broken bottle detection method according to the present invention has been described, the present invention is not limited to the above-described embodiment, and is not limited to the scope described in each claim. It may be modified or applied to other things. The present invention can be variously modified without changing the gist described in the claims. That is, the configuration and shape of each part of the broken bottle detection device, and the content and order of each step in the broken bottle detection method can be appropriately changed without changing the above-described gist.

  For example, in the above-described embodiment, the detection unit 24 including the base 24a, the sensor position adjustment unit 24b, the sensor height adjustment unit 24c, and the sensor angle adjustment unit 24e has been described. However, the configuration of the detection unit can be appropriately changed, and the configuration of the irradiation unit can also be appropriately changed. Further, in the above-described embodiment, the broken bottle detecting device 20 including the first broken bottle detecting device 21 that detects the broken large bottle B1 and the second broken bottle detecting device 22 that detects the broken middle bottle B2 has been described. However, the size, shape, and type of the bottle detected by the broken bottle detection device can be appropriately changed.

  Further, in the above-described embodiment, the example in which the irradiation unit 23 is disposed obliquely downward when viewed from the bottle B and the light C is irradiated obliquely upward from the irradiation unit 23 has been described. However, for example, the irradiation unit may be disposed obliquely upward when viewed from the bottle, and the light may be irradiated obliquely downward from the irradiation unit. The arrangement positions of the irradiation unit and the detection unit in the labeler can be changed as appropriate. Further, the irradiation unit and the detection unit (the broken bottle detection device) may be arranged at a position other than the labeler, for example, on the downstream side of the labeler 10 on the transport path L, and between the finish inspection unit 2 and the caser 4. It may be located anywhere as long as it is a single row portion.

  In the above-described embodiment, the example in which the bottle B is a brown transparent beer bottle has been described. However, the bottle may be colored and transparent other than brown, such as green or blue, or may be colorless and transparent. As described above, even when the bottle is colored transparent or colorless and transparent other than brown, the same effect as described above can be obtained.

  In the above-described embodiment, the bottle B in which the beer liquid is injected as the beverage has been described. However, the broken bottle detection device and the broken bottle detection method according to the present invention are also applicable to a bottle into which a beverage other than beer liquid has been injected. Furthermore, in the above-described embodiment, the beverage manufacturing system 1 including the plurality of finish inspection units 2, the caser 4, and the missing bottle inspection unit 5 has been described. However, the configuration of the beverage production system can be changed as appropriate.

(Example)
Next, an embodiment of a broken bottle detecting apparatus and a broken bottle detecting method according to the present invention will be described. The present invention is not limited to the following examples. In the experiment according to the embodiment, for example, as shown in FIG. 2, the bottle breaking detector 20 is arranged between the 12th and 13th heads counted from the entrance of the line 13, and the VARICAM value is 185 or more and 260 or less. The detection of a broken bottle was carried out while shifting by 5 in the range of. 8 (a), 8 (b), 8 (c), and 8 (d), the front, left, right, and back shoulders K as viewed from the irradiation unit 23. The light C was applied to the bottle B, the empty bottle, and the non-broken bottle having the cracks, and the detection unit 24 measured the amount of light received. The measurement results are shown in Table 1 below.

  In Table 1, each value in the column of “tasting bottle” indicates the detection unit when the light C is irradiated from the irradiation unit 23 to the detection unit 24 on the bottle B into which the beer liquid B3 is not broken and in which the beer liquid B3 is injected. 24 shows the amount of received light. The numerical value of the amount of received light indicates that the amount of light received when 100% of the light C from the irradiation unit 23 enters the detection unit 24 is “9999”, and indicates the ratio of the amount of light received by the detection unit 24 to “9999”. ing.

  Each column of “empty bottles” indicates the amount of light received by the detection unit 24 when the light C is irradiated from the irradiation unit 23 to the detection unit 24 on an empty bottle that does not contain any contents. Each value in the “front” column indicates the amount of light received by the detector 24 when the bottle C whose front is broken is irradiated with light C from the irradiator 23 to the detector 24 as shown in FIG. Is shown. The values in the column of “left side” are the values of the detection unit 24 when the light C is irradiated from the irradiation unit 23 to the detection unit 24 on the bottle B whose left side is broken as shown in FIG. Indicates the amount of received light. The values in the column of “right side” are the values of the detection unit 24 when the light C is irradiated from the irradiation unit 23 to the detection unit 24 on the bottle B whose right side is broken as shown in FIG. Indicates the amount of received light. Each value in the column of “back” is the amount of light received by the detection unit 24 when the light C is irradiated from the irradiation unit 23 to the detection unit 24 on the bottle B whose back is broken as shown in FIG. Is shown.

  As shown in Table 1, in the case of bottle B, which is an unbroken bottle, the amount of light received by the detection unit 24 was significantly suppressed by refraction of the light C by the beer liquid B3. On the other hand, in the case of the bottle B in which one of the front, left, right, and rear surfaces is broken, and in the case of an empty bottle, the light C travels straight in the internal space B5 of the bottle B, so Could be greatly increased. The maximum value of the received light amount in the case of the flavored bottle is “16”, and the minimum value of the received light amount in the case of the broken bottle B is “240” (the minimum value of the received light amount of the empty bottle is “184”). Therefore, the threshold of the light reception amount of the detection unit 24 is set to, for example, 30 or more and 150 or less (for example, “50”), and when the light reception amount of the detection unit 24 is equal to or less than the threshold, it is determined that the bottle B is not broken. At the same time, when the amount of light received by the detection unit 24 is larger than the threshold, it can be determined that the bottle B is broken.

  Further, as shown in Table 1, when the rotation angle of the bottle detecting device 20 in the labeler 10 is 125.1 ° to 127.2 ° when the VARICAM value 0 of the first head (pitch) is set to the 0 ° position. In other words, when the VARICAM value is 185 or more and 260 or less, a large difference can be derived in the amount of light received by the detection unit 24 between the broken bottle B and the unbroken bottle B. It was found that the broken bottle B could be reliably detected. Further, it has been found that a broken bottle B can be reliably detected even if any of the front, left side, right side and back is broken.

DESCRIPTION OF SYMBOLS 1 ... Beverage production system, 2 ... Finishing inspection part, 4 ... Caser, 5 ... Missing bottle inspection part, 10 ... Labeler, 11, 12, 13, 14 ... Line, 13a ... Head, 15 ... Label inspection part, 20 ... Breaking Bottle detection device, 21: first broken bottle detection device, 22: second broken bottle detection device, 23: irradiation unit, 24: detection unit, 24a: base, 24b: sensor position adjustment unit, 24c: sensor height adjustment Part, 24d: axis, 24e: sensor angle adjustment part, 24f: bottle detection sensor, 24g: broken bottle sensor, B: bottle, B1: large bottle, B2: medium bottle, B3: beer liquid (drink), B4: liquid level , B5: internal space, C: light, H: horizontal plane, K: shoulder, L: transport path, L1: first transport line, L2: second transport line, L3: third transport line, L4: fourth transport Line, L21: first portion, L22: second portion, L23: narrow portion, L 1 ... first part, L32 ... second portion, L33 ... wide portion, t1, t2 ... time, .theta.2 ... inclination angle, .theta.3 ... incident angle, .theta.4 ... refraction angle.

Claims (6)

A broken bottle detection device that detects a broken bottle after a beverage is injected and a taste inspection is performed,
An irradiation unit that irradiates the bottle with light so as to be oblique to the liquid level of the beverage injected into the unbroken bottle,
A detection unit that detects the light that is emitted from the irradiation unit and passes through the broken bottle and does not pass through the beverage,
A broken bottle detection device comprising: The bottle is colored and transparent,
The broken bottle detection device according to claim 1. The irradiating unit irradiates light obliquely upward on the bottle,
The detection unit detects the light emitted from obliquely below by the irradiation unit,
The broken bottle detection device according to claim 1. The detection unit is a bottle with a broken shoulder and detects light passing through the bottle from which the beverage leaked from the shoulder.
The broken bottle detection device according to any one of claims 1 to 3. The irradiation unit and the detection unit are arranged on a labeler that applies a label to the bottle,
The broken bottle detection device according to any one of claims 1 to 4. A broken bottle detection method for detecting a broken bottle after a beverage is injected and a taste inspection is performed,
Irradiating the bottle with light so as to be oblique to the liquid level of the beverage injected into the unbroken bottle,
Detecting the light that was emitted in the step of irradiating the light and passed through the broken bottle and did not pass through the beverage;
A broken bottle detection method comprising:

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