JP2002053198A - Method and apparatus for manufacturing bottled beer and method for manufacturing enclosure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform highly accurate inspection of a charged quantity and check for a partial deficit in a character in inspection of printed characters on a label. SOLUTION: An image of a liquid level part of beer poured into a beer bottle 31 is picked up and image data is acquired. The image data is divided into a plurality of detection areas R1 to R5, and respective liquid levels h11 to h15 and bubble levels h21 to h25 of the respective areas R1 to R5 are detected. Based on the liquid level h13 and the bubble level h23 which are the medians among the levels, whether a quantity of the poured beer and the bubble level are in a specified range S is examined. In addition, after arrival of the beer bottle 31 is detected, an image of a back label 47 stuck to the bottle 31 is picked up to acquire its image data. After a mark of a manufacturing factory and information on a use-by date printed on the back label 47 are searched from the image data, other information is searched with the position of the former information as a reference position. Whether printed characters are good or not is determined based on a degree to which the searched data and registered data match.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for injecting beer into a plurality of containers, for example, beer bottles, successively flowing into a production line, and then adding information such as a manufacturing plant and a shelf life to the beer bottles. The present invention relates to a method for producing a bottled beer to which a printed label is attached, an apparatus therefor, and a method for producing an enclosure.

[0002]

2. Description of the Related Art When a container is filled with a predetermined liquid constituting an entity to be bought and sold, and a label is attached to the container with a product name or a label stipulated by law, etc., the product is not flavored. Labels on the quantities and labels must be made in accordance with the law.

[0003] For example, when the predetermined liquid is liquor such as beer or low-malt beer, a problem in the liquor tax law arises if a larger amount of beer is enclosed in a beer bottle and shipped. In addition, if the number is smaller than the display, a problem in the measurement method arises, so that it is necessary to strictly manage the error within a predetermined error range.

[0004] Also, the label of the label is required by the Food Sanitation Law under the Food Sanitation Law. In this case, it is necessary to confirm whether the label is correctly printed.

Conventionally, the work of managing the amount of beer and the work of confirming whether or not the beer is correctly printed have often relied on visual inspection.

[0006]

However, in a bottled beer production line, for example, it is necessary to perform a 100% inspection, and thus it is necessary to perform the above-described inspection work while the beer bottle is being transported. However, the contents (beer) fluctuate in the beer bottle. Measurement cannot be performed accurately. In addition, since the display of the label is also checked visually, it takes a long time to manufacture the device if an attempt is made to perform a 100% inspection.

Accordingly, the present invention provides a method and apparatus for producing a bottled beer capable of accurately detecting each position of the liquid level and the foam level and performing a high-accuracy inspection of the amount of filling even if the liquid level is not horizontal due to shaking. The purpose is to:

Another object of the present invention is to provide a method for producing bottled beer and an apparatus therefor, which enable 100% inspection of label printing without lowering productivity.

Another object of the present invention is to provide a method for manufacturing an enclosure capable of accurately detecting the position of the surface of the contents even if the contents are not in a horizontal state and performing a highly accurate inspection.

[0010]

SUMMARY OF THE INVENTION According to the present invention, there is provided a bottled beer having an inspection step of inspecting the amount of beer while the bottle into which beer is injected is distributed on a production line. The method, wherein the inspecting step includes irradiating the bottle with light that can be transmitted to the bottle, capturing an image of the light transmitted through the bottle, and an area where the beer exists and the The boundary between the region where the layer of foam formed from beer is present, and the boundary between the region where the layer of foam is present and the region where the beer and the foam in the bottle are not present, respectively. The relative position from the predetermined reference position of the boundary when the image is divided into a plurality of determination regions so as to be included in the image is calculated from the image for each of the determination regions, and the center of each of the relative positions is calculated. The value is within the specified tolerance It compares a bottled beer manufacturing method characterized by comprising the step of determining, the.

According to a second aspect of the present invention, in the method for producing a bottled beer according to the first aspect, the identification of the boundary is performed based on data obtained by filtering at least information on shading of image data based on the image. The method is characterized in that a boundary is specified.

According to a third aspect of the present invention, in the method for producing a bottled beer according to the first aspect, when the liquid level of the beer is lower than the liquid level specified range, it is determined that the beer is insufficient, and the liquid level specified range is determined. If the foam level is abnormal, the foam level is determined to be excessive, and if the foam level of the foam is abnormal even if the fluid level is normal within the fluid level specified range, the foam level is determined to be abnormal. And is distinguished from non-defective products.

According to a fourth aspect of the present invention, there is provided a cylindrical bottle having a label on which a plurality of pieces of information relating to beer to be enclosed are displayed, the label being displayed while being distributed on a production line. A method for producing a bottle of beer comprising an inspection step of performing an inspection, wherein the inspection step is a step of fixing and transporting the bottle so that the label faces in the same direction when passing through the same point, Imaging the label of the bottle being conveyed to obtain image data, and searching the image data for a display of any one of the plurality of information, inspecting the display, Specifying an area on the image data in which one of the information displays is present; and determining a relative position of an area in which another display, which is preset with respect to the specified area, should exist. A step of specifying a search area in the image data, and a step of searching for a display that should be in the search area from the search area and inspecting the display. This is a method for producing bottled beer.

According to a fifth aspect of the present invention, in the method for producing a bottled beer according to the fourth aspect, the inspecting step searches for an indication including at least a manufacturing factory symbol printed on the label. Determine the amount of deviation from the registered position of the display position including the symbol of the manufacturing plant,
Next, according to the shift amount, using the position of the display including the symbol of the manufacturing factory as a reference position, the search area for displaying the expiration date, manufacturing date, and time printed on the label is obtained. .

According to a sixth aspect of the present invention, in the method for producing a bottled beer of the fourth aspect, in the inspecting step, the label is sequentially attached to a plurality of bottles passing on a circular production line. Next, the information is printed on the label, the expiration date, the date of manufacture, and the search time for each of the information of the time is determined using the information including the symbol of the manufacturing factory as a reference position. It is characterized in that each correction of the length considering the cylindrical shape of the bottle is added between each distance between the position and each piece of the information.

According to a seventh aspect of the present invention, there is provided a bottled beer manufacturing apparatus for manufacturing a bottled beer by sequentially injecting beer into a plurality of bottles continuously circulated through a manufacturing line. A sensor for detecting arrival, and an imaging unit for receiving an arrival signal from the sensor, irradiating the bottle with transmittable light, capturing an image of the light transmitted through the bottle, and acquiring image data thereof. A boundary between a region where the beer is present and a region where a layer of a foam generated from the beer is present, and a region where the layer of the foam is present, based on the image data obtained by the imaging unit. And a boundary between the beer and the region in which the foam in the bottle does not exist, from a predetermined reference position of the boundary when the image is divided into a plurality of determination regions so as to be included in each region. The relative position, and means for calculating from said image for each said determined area of Compares median of each relative position is within a predetermined permissible range, and determines,
Means for paying out defective products from the production line out of the bottles into which the beer flowing into the production line has been poured in accordance with the inspection result of the means, from the production line.

According to the present invention, a plurality of pieces of information about the beer are displayed on the surface of the bottle after the beer is sequentially injected into a plurality of cylindrical bottles continuously circulated in the production line. In a bottle beer manufacturing apparatus to which a label is attached, the bottle flowing in the manufacturing line, when passing through the same point, so that the label is oriented in the same direction, the transport means for fixing and transporting the bottle, A sensor for detecting the arrival of the bottle conveyed by the conveying unit, an imaging unit for receiving the arrival signal from the sensor, imaging the label attached to the bottle to obtain image data thereof, and Searching the display of any one of the plurality of pieces of information from the image data obtained by the means, inspecting the display, and checking the display of any one of the pieces of information; Means for specifying an area on the image data where a display is present, and, based on a relative positional relationship of an area where another display is to be set in advance with respect to the specified area, Means for specifying a search area, means for searching for a display that should be in the search area from within the search area, and means for inspecting the display, and among the bottles circulated to the transport means in accordance with the result of the inspection. Means for paying out defective products from the transporting means, and when the search area for the expiration date, the date of manufacture, and the time information is obtained with the information including the symbol of the manufacturing plant among the information as a reference position, Rotational deviation correcting means for performing each correction of the length in consideration of the cylindrical shape of the bottle between each distance between the reference position and the information in consideration of the cylindrical shape,
A bottle beer manufacturing apparatus characterized by comprising:

According to a ninth aspect of the present invention, there is provided a method for manufacturing an enclosure, comprising an inspection step of inspecting an injection amount of the contents while distributing a container filled with the contents on a production line. The inspecting step includes irradiating the container with light that can pass through the container, capturing an image of the light that has passed through the container or reflected in the container, and that the content exists. The relative position from a predetermined reference position of the boundary when the image is divided into a plurality of determination regions so that the boundary between the region to be performed and the region where the contents do not exist in the container is respectively included, Calculating from the image for each of the discrimination areas, comparing whether the median value of each of the relative positions is within a predetermined allowable range with respect to a predetermined reference relative position, and discriminating. The method of manufacturing an enclosure that features That.

According to a tenth aspect of the present invention, there is provided a cylindrical container to which a label on which a plurality of pieces of information relating to the contents to be enclosed are displayed is attached while the container is being distributed on a production line. A method of manufacturing an enclosure including an inspection step of inspecting, wherein the inspection step is a step of fixing and transporting the container so that the label faces in the same direction when passing through the same point. And the step of capturing the label of the container being conveyed to obtain image data, and searching for a display of any one of the plurality of pieces of information from the image data, and inspecting the display. A step of specifying an area on the image data in which the display of any one of the information exists, and a phase of an area in which another display set in advance with respect to the specified area should exist. A step of specifying a search area in the image data based on the positional relationship, and a step of searching a display that should be in the search area from the search area and inspecting the display. This is a method for producing an enclosure.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (1) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an overall configuration diagram showing a process for producing bottled beer. A beer bottle (empty bottle) is, for example, a plastic box (usually referred to as a P box) 1 capable of storing 20 bottles at a time.
, And a plurality of the P boxes 1 are loaded and collected by the transport vehicle 2. The collected P boxes 1 are dropped from the transport vehicle 2, stored in the depalletizer 3, and sent to the anchorer 4. In the anchorer 4, the beer bottle stored in the P box 1 is taken out. The P box 1 is sent to the twister 5, where it is turned downward to remove dust and the like in the P box 1. Next, the P box 1 is cleaned by the prewashing machine 6, polished by the polishing machine 7, further cleaned by the ultrasonic cleaning machine 8, and sent to the caser 9 described later.

The beer bottle is sent to a bottle washing machine 10 where it is washed, and the empty bottle inspection machine 11 inspects the filler 12 for cracks and missing holes. In this filler 12,
A plurality of beer bottles are flown on an arcuate rotary, and beer 13 is sequentially injected into the beer bottles. The beer bottle into which the beer 13 has been injected is closed by the stopper 14 and the warmer 15 warms the surface of the beer bottle to prevent dew condensation, and then sent to the filling amount inspection device 50.

As will be described in detail later, the filling amount inspection device 50 determines whether the amount of beer injected into the beer bottle and the foam height of the foam are within a prescribed range (permissible range). And if it is determined to be defective,
This defective product is paid out from the line. The beer bottles having been subjected to the inspection for the amount of incoming beer are inspected for heterogeneous crowns by the heterogeneous crown inspection machine 17 and sent to the labeler 18.

In the labeler 18, a plurality of beer bottles are flown on a circular rotary (conveying means), and a body label and a back label are sequentially attached to the beer bottles. On the back label, various information such as, for example, the manufacturing factory and the expiration date are printed. The label print inspection device 60 captures an image of the back label attached to the beer bottle, as described in detail later, and determines good or bad display of each information printed on the back label from this image data. Dispatch defective products from the line.

The beer bottle on which the label printing inspection has been performed is sent to the caser 9, placed in the P box 1, and stored in the palletizer 20. And it is shipped by the transport vehicle 2.

FIGS. 2 to 4 are diagrams showing the configuration of the above-mentioned inspection device 50. FIG. 2 is an overall configuration diagram, FIG. 3 is a layout diagram of a line (manufacturing line) 30, and FIG. FIG. In the line 30, a plurality of beer bottles 31 into which beer is poured, for example, about 20
It flows in the direction of arrow A at a speed of 0 to a maximum of 800 lines.
In the line 30, photoelectric sensors 32a and 32b each including a light projecting portion 32a that projects light in a direction intersecting the direction of arrow A and a light receiving portion 32b that is arranged with the line 30 interposed therebetween, and have an electronic shutter function. A CCD camera (hereinafter abbreviated as CCD camera) 33 is provided.

The photoelectric sensors 32a and 32b
1 is located at a height corresponding to the vicinity of the crown, and detects the presence or absence of the beer bottle 31. Note that this photoelectric sensor 3
2a and 32b are not limited to the lower part of the opening of the beer bottle 31, but may be arranged at a height position corresponding to the body or neck of the beer bottle 31 to detect the arrival of the beer bottle 31.

The CCD camera 33 is arranged at a height corresponding to the neck of the beer bottle 31. At a position facing the CCD camera 33 via the line 30, a flat illumination 35 having a planar shape is arranged as shown in FIG.

The output terminal of the CCD camera 33 is connected to an image processing device inspection processing section 51. Also, CC
A flat light 35 of visible light for uniformly illuminating the beer bottle 31 is arranged at a position facing the D camera 33 across the line 30.

With such a configuration, the photoelectric sensor 32
When it is detected by a and 32b that the beer bottle 31 has entered the inspection area, the CCD camera 33 opens the electronic shutter to image the beer bottle 31, and outputs an image signal of the image. The image processing device inspection processing unit 51 includes a CCD camera 33
And an inspection process is performed on the image data.

Next, the processing for inspecting the loaded amount will be described. Figure 5 is a schematic diagram of image data Q ₁ taken from the CCD camera 33, the beer liquid surface of the beer bottle 31 (hereinafter,
Shows the state of the liquid surface is omitted) h ₁ and beer foam.
Liquid level h ₁ and beer foam surface (hereinafter, the foam surface is omitted) the distance between h ₂ is referred to as a foam height h _3, the become inspected, the amount of the position and foam height of the liquid level h ₁ It is.

[0032] Specifically, each pixel is projected (projection) process in the X direction (lateral direction) for the image data Q ₁ as shown in FIG. 6, performing a filtering process (differentiation processing) with respect to the projection result Edge detection is performed in the Y direction (arrow B direction).

Specifically, a filter (for example, a boxcar filter) is applied to the one-dimensional projection image. If the filter is a two-element filter, it starts from the beginning of the pixel of the one-dimensional projection image and sequentially subtracts the adjacent pixel from the left pixel. This is repeated for each pixel in the one-dimensional projection image. For example, a one-dimensional projection image is indicated by a numerical value for each pixel, and “0, 0, 0,
5,10,15,15,15,15,15,5,0,
0,0 ", subtraction is performed sequentially from the left pixel to the adjacent pixel, and 0-0 = 0, 0-0 = 0, 5-
0 = 5, 10−5 = 5,..., 0−0 = 0, and as a result, “0, 0, 5, 5, 5, 0, 0, 0, 0, −10,
−5, 0, 0 ”.

Further, for example, a differential processing can be performed for a numerical value that is in contact with a pixel by skipping one pixel by changing the width of the filter. In this case, the one-dimensional projection image is “0, 0, 0, 5, 10, 15, 15, 15, 15,
15, 15, 5, 0, 0, 0 ", when this is filtered," 0, 5, 5, 10, 5, 0, 0, 0,
-10, -15, -5, 0 ".

In such a filtering process, the appearance of edge detection can be changed by changing the size of the filter. By appropriately selecting a filter according to the case, edge detection with high accuracy can be performed. .

In this edge detection, several edges are detected. Of these, the lowermost surface where the density of the image changes from black to white is the liquid surface h ₁ (edge 1), and the uppermost surface where the color changes from white to black. Is detected as a bubble surface h ₂ (edge 2).

The liquid surface h _{1 of} the liquid surface h ₁ and the foam surface h _{2
When 1} is lower than the liquid level specified range S, it is determined to be “insufficient”, and when it is higher than the liquid level specified range (permissible range) S, it is determined to be “excess”, and both are determined to be defective. Further, when the liquid level h ₁ is the foam height h ₃ be successfully in the liquid level specified range S exceeds the liquid level defined range S is defective as "foam height abnormal".

A payout section 36 is provided on the downstream side of the taste detection device 50, and discharges defective products out of the beer bottles 31 flowing to the line 30 from the line 30 according to the result of the taste detection.

By the way, in the above-mentioned filling amount inspection device 50,
The liquid level of the beer bottle 31 flowing in the line 30 fluctuates due to the backlash of the belt conveyor or the flow speed change, and the liquid level is not always horizontal. For example, if the liquid level h ₁ is inclined as shown in FIG. 7, the liquid level h ₁ from the projection result of the captured image data is positioned lower than the liquid level in the steady state, Awamen h ₂ also show steady becomes higher than Awamen, is determined as "deficient" or "foam height anomaly", despite normal unless tilted liquid level h _1, there is a possibility to be paid out as bad.

Accordingly, the image processing device inspection processing section 51 of the above-mentioned filling amount inspection device 50 receives the detection signals from the photoelectric sensors 32a and 32b, captures the image signal from the CCD camera 33, and processes the captured image data. This image data is subjected to image processing, and the boundary between the area where beer exists and the area where the layer of foam generated from beer exists, and the layer of foam exists. The boundary between the region to be processed and the region where the beer and the foam in the beer bottle 31 do not exist is defined from a predetermined reference position of the boundary when the image captured so as to be included in each region is divided into a plurality of determination regions. It has a function of calculating a relative position from an image captured for each determination area, comparing whether the median of each relative position is within a predetermined allowable range, and determining.

Specifically, the image processing apparatus inspection processing section 51
According to the inspection processing flow chart shown in FIG. 8, a dividing means 52 for dividing the image data acquired by the CCD camera 33 into a plurality of detection areas (discrimination areas), and each of the detection areas divided by the dividing means 52 The liquid level and each foam level are detected, and based on the liquid level and the foam level, which are the median values, it is checked whether or not the beer injection amount and the foam height are within the liquid level prescribed range S shown in FIG. It has each function with the inspection means 53 to perform.

The inspection means 53 determines that the liquid level and the bubble level, which are the median values, are lower than the specified liquid level range S as “insufficient”, and determines that the liquid level is higher than the specified liquid level range S. Is determined to be “excessive”, both are determined to be defective, and even if the liquid level is normal within the specified liquid level range S, the bubble height is determined to be within the specified liquid level range S.
If it exceeds, it is determined to be defective as "abnormal foam height",
When a defective beer bottle 31 is determined from the inspection result of the amount of contained food, it has a function of transmitting to the payout unit 36 a command to pay out the defective beer bottle 31 from the line 30.

9 to 11 are diagrams showing the construction of the label printing inspection apparatus 60, FIG. 9 is an overall construction diagram, FIG. 10 is a layout diagram of a rotary (entering the whole production line 30) 40, and FIG. FIG. 2 is a configuration diagram as viewed in a flow direction of a rotary 40. A plurality of beer bottles 31 into which beer is injected flow in the circular rotary 40 in the direction indicated by the arrow C at a speed of, for example, about 200 to 800 bottles per minute. On the rotary 40, a back label attaching machine 41 and a laser printing machine 42 are arranged along the line.

Downstream of the laser printer 42 disposed on the rotary 40, a light projecting section 43a and a light receiving section 43
b, and a CCD camera with an electronic shutter (hereinafter referred to as a CCD camera).
Camera 44) is arranged. The photoelectric sensors 43a and 43b are arranged at a height position corresponding to a lower part of an opening (mouth) of the beer bottle 31. The photoelectric sensors 43a and 43b may be arranged not only at the lower portion of the opening of the beer bottle 31 but also at a height corresponding to the body or neck of the beer bottle 31 to detect the arrival of the beer bottle 31.

As shown in FIG. 10, the CCD camera 44 is arranged at a height corresponding to the position where the back label 47 of the beer bottle 31 is attached. This CCD
Above the camera 44, a flat visible light flat illumination 46 is arranged.

The output terminal of the CCD camera 44 is connected to an image processing device inspection processing section 61. On the CCD camera 44 side of the rotary 40, a flat illumination 46 for uniformly illuminating the back label 47 of the beer bottle 31 is arranged.

With such a configuration, when the beer bottle 31 flows on the rotary 40 of the labeler 18, the back label attaching machine 41 attaches the back label paper 47 a to the beer bottle 31, and the laser printing machine 42
Thus, information such as the manufacturing factory and the expiration date is printed on the back label paper 47a. FIG. 12 shows a print character configuration of the back label 47. The back label 47 includes a manufacturing factory symbol (for example, B) and a shelf life (for example, 0).
The date of manufacture (for example, April 2000), the date of manufacture (for example, lower H), and the time symbol (for example, NH) are printed.

The beer bottle 31 to which the back label 47 is attached flows to the rotary 40, and when the beer bottle 31 is detected by the photoelectric sensors 32a and 32b to enter the inspection area, the CCD camera 44 opens the electronic shutter. And images the back label 47 of the beer bottle 31 and outputs the image signal. The image processing device inspection processing unit 61
An image signal from the CCD camera 44 is fetched, and a label print inspection process is performed on the fetched image data.

The label printing inspection process will be described.
You. The image processing device inspection processing unit 61 is configured as shown in FIG.
Of the manufacturing plant, expiration date, date of manufacture, time symbol
Registered pattern data, here reference model M₁~ M₅To
It is stored in advance. The reference model M₁Is a manufacturing plant
Symbol "B" and expiration date "0", reference model M₂Is a taste
Expiration date "December year", reference model M₃Is the year of manufacture
April ”, reference model M ₄Is “Lower H” on the date of manufacture,
Dell M₅Is the time symbol "NH". These standards
Model (registered pattern data) M₁~ M₅Is a manufacturing factory
Symbol, expiration date, date of manufacture, time symbol
Boundary of the corresponding reference model from all model images
And extract the boundary points along the contour as a list.
It is a manifestation. The boundary point is
Perpendicular to position (X, Y) and outline in captured image data
Directional component θ.

The image processing apparatus inspection processing unit 61 performs search processing for detecting a position coinciding with the reference model M ₁ with respect to image data captured from the CCD camera 44 in the search area E _1. In this search processing, the reference model M ₁
Are associated with the features in the captured image data, and each of the associated features is evaluated, and the evaluation result is represented by a numerical value. The numerical value of the evaluation result is called a score value, and is represented by, for example, 0 to 100. Indicates that the score value coincides with the higher reference model M _1.

Therefore, the image processing apparatus inspection processing section 61
Comparing the score values for the reference model M ₁ in the search area E within ₁ and the specified score value, expiration date and sign production plants score value is printed at least prescribed score value to the back label 47 "B" Is determined to be normal, and less than "0" is determined to be defective.

Similarly, the image processing apparatus inspection processing unit 61
Each reference model M in each search area E _{2 to} E ₅
Performing the search process for detecting a position coinciding with ₂ ~M ₅ obtains the respective score values, these score values are determined to be normal when the above specified score value determines less defective.

If each score value for each of the reference models M _{1 to} M ₅ (score values for the symbol of the manufacturing plant, the expiration date, the date of manufacture, and the time symbol) exceeds the prescribed score value,
The image processing apparatus inspection processing unit 45 outputs the normal back label 4
7 is determined.

Thus, a payout section 48 is provided downstream of the label print inspection apparatus 19, and pays out defective products out of the beer bottles 31 flowing to the rotary 40 according to the label print inspection result.

By the way, the label print inspection device 60 performs each search process for detecting a position that matches each of the reference models M _{1 to} M _{5 for} each of the _five search areas E _{1 to} E ₅ , and calculates each score value. So that each search area E
It takes ₁ to E each inspection time per ₅ long, the balance between the speed of the beer bottle 31 to flow to the rotary 40, it takes too much time required for the determination of the payout necessity from the imaging of the label print, the next beer bottles There is a possibility that it will not be in time by the start of the inspection.

Therefore, the image processing apparatus inspection processing unit 61
5 displayed on the back label 47 from the image data
One of searches for any one of the reference model of the reference model M ₁ ~M _5, the inspection position to identify the other search areas should be present reference model based, and has a function of performing the search process.

Specifically, the image processing apparatus inspection processing unit 61
According to the inspection processing flow chart shown in FIG. 14, image signals are received from the CCD camera 44 in response to detection signals from the photoelectric sensors 43a and 43b, and label printing inspection processing is performed on the captured image data.
From the obtained image data by a camera 44 of the back label 47 printed beer manufacturing plant symbols, expiration date, manufacturing date, manufacturing date, searching out for example the reference model M ₁ containing symbols manufacturing plant time symbol and other reference model based on the positional deviation result M ₂ ~M ₅ a is expiration date,
Search means 6 for searching for production date, production date and time symbol
2 and the back label 47 based on the degree of coincidence between the information searched by the search means 62 and the registered data.
And a determination means 63 for determining whether the symbol of the manufacturing factory, the expiration date, the manufacturing date, the manufacturing date, and the time symbol are good or bad.

When the judging means 63 judges that the symbol of the manufacturing plant, the expiration date, the manufacturing date, the manufacturing date and the time symbol printed on the back label 47 are defective, the defective beer bottle 31 is paid out from the rotary 40. Issue command 48
Has the function of sending to

Next, a description will be given of a method of producing beer in a beer production process using the taste quantity inspection device 50 and the label printing inspection device 60 configured as described above.

As shown in FIG. 1, 20 beer bottles (empty bottles) are stored in the P box 1 at a time and are collected by the transport vehicle 2. These P boxes 1 are unloaded from the carrier 2, stored in the depalletizer 3, and sent to the anchor 4. In the uncaser 4, the box P is divided into a box P and a beer bottle 31, and the box P is sent to the twister 5, where it is turned downward to remove dust and the like in the box P. Next, the P box is cleaned by the prewashing machine 6, polished by the polishing machine 7, further cleaned by the ultrasonic cleaning machine 8, and sent to the caser 9 described later.

The beer bottle 31 is sent to the bottle washing machine 10 to be washed, and is inspected by the empty bottle inspecting machine 11 for cracks and missing holes, and is sent to the filler 12. In the filler 12, a plurality of beer bottles 31 are flown on an arc-shaped rotary, and beer 13 is sequentially injected into the beer bottles 31. The beer bottle 31 into which the beer 13 has been poured is closed by the capping machine 14, hot water is supplied by the warmer 15 to prevent dew condensation, and sent to the filling amount inspection device 50 shown in FIG.

When a plurality of beer bottles 31 sequentially flow on the line 30 in the filling amount inspection device 50 and the beer bottles 31 reach the detection areas of the photoelectric sensors 32a and 32b, the photoelectric sensors 32a and 32b detect the beer bottle 31. (The photoelectric sensor is turned on) and the detection signal is output.

The image processing apparatus inspection processing section 51 receives the detection signals from the photoelectric sensors 32a and 32b in step # 1 according to the inspection processing flowchart shown in FIG. The shutter is opened and an image signal output from the CCD camera 33 is captured. Note that the CCD camera 33 is
The magnification is set in advance, and the magnification is registered in the image processing apparatus inspection processing unit 51.

Next, in step # 3, the image processing apparatus inspection processing section 51 performs image processing on the image data taken in from the CCD camera 33 to obtain the liquid level and the bubble level. First, the image processing apparatus inspection processing unit 51 sets a measurement area A from image data as shown in FIG.

Next, as shown in FIG. 16, the dividing means 52 of the image processing apparatus inspection processing section 51 converts the image data in the measurement area A into a plurality of detection areas, for example, five detection areas R.
Divided into _{1 ~R 5.}

Next, the inspection means 53 checks each detection area R₁
~ R₅For each image data in the projection length direction
Projection processing is performed on each pixel, and the above-described
Data processing (for example, differential processing) to perform edge detection.
U. In this edge detection, several edges are detected
However, the shades of the image are black
As shown in FIG. 17, the lowermost surface that changes to white is detected in each detection area.
R₁~ R₅Liquid level at ₁₁~ H_FifteenAnd on the same drawing
The top surface that changes from white to black from top to bottom is
A R₁~ R₅Foam surface h₂₁~ H₂₅Detect as
You.

The beer bottle 31 flowing in the line 30 is a bell
Due to the influence of the vibration of the conveyor and the speed change of the flow,
The liquid level of the beer shakes. Figure 18 shows the beer
Each detection area R when the liquid surface is inclined₁~ R₅In
Each liquid level h₁₁~ H_FifteenAnd each foam surface h₂₁~ H₂₅Detection
Is shown. That is, the inspection means 53 determines that each detection area R ₁
~ R₅Projection processing for each image data
The projection data T₁~ T₅And calculate these projection data
T₁~ T₅For the edge of the image.
Check the bottom surface that changes from black to white from top to bottom on the drawing.
Exit area R₁~ R₅At each liquid level h₁₁~ H_FifteenTo
The top that detects and changes from white to black from top to bottom on the drawing
The surface to each detection area R₁~ R₅Each foam surface h₂₁~ H
₂₅Detected as

Next, the inspection means 53 checks each detection area R₁
~ R₅At each liquid level h₁₁~ H_{1 5}Median of
(Median value) liquid level h₁₁~ H_FifteenIn FIG. 18,
Liquid level h ₁₃The beer filling height is calculated based on the beer. this
The beer taste height (mm) is calculated by calculating the taste height (mm) = {measured taste value (pixel)-the taste reference value (pixel)} x the magnification + the reference height (mm) ... (1) . The pixels are the image of the CCD camera 33.
The magnification is the magnification of the CCD camera 33,
The height is a set value.

The inspection means 53 is provided for each of the detection areas R ₁ to R ₁ .
Foam surface _h 21 _{to h 25} become median (median value) of each foam face _h 21 _{to h 25} at R _5, obtains the beer foam height based on Awamen _{h 2 3} in FIG. 18. The foam height value (mm) of this beer is obtained by calculating the foam height value (mm) = {measured foam surface value (pixel) −measured taste value (pixel)} × magnification (2).

Next, the inspection unit 53, in step # 4, the liquid level _{h 13} and Awamen _{h 23} Tonouchi liquid level _{h 13} serving as a median value is lower than the liquid level specified range S shown in FIG. 5 Is determined to be "insufficient", and when the level is higher than the liquid level regulation range S is determined to be "excess", both are determined to be defective, and the liquid level h is determined.
₁₃ is normal within the liquid level prescribed range S, but if the foam height exceeds the liquid level prescribed range S, it is determined to be defective as “abnormal foam height”, and among the inspection results of the filling amount, a failure is determined. Is determined, the defective beer bottle 31 is transferred to line 3
An instruction to pay out from 0 is sent to the payout unit 36.

The inspection means 53 calculates the filling height (mm) and the foam height value (mm) by calculating the above formulas (1) and (2), and the filling height (mm) becomes the reference height. On the other hand, when the value exceeds the set upper limit value, it is determined as “excess”, and when the filling height (mm) is less than the set lower limit value with respect to the reference height, it is determined as “insufficient”, and the bubble height (mm) is determined. ) Is determined to be “bubble abnormal” when the value exceeds the set value. However, when determining the defective beer bottle 31 in the inspection result of the amount of flavor, the inspection means 53 sends a command to pay out the defective beer bottle 31 from the line 30 to the payout unit 36.

The edges corresponding to the respective liquid surfaces h _{11 to} h ₁₅ in the respective detection areas R _{1 to} R ₅ correspond to the projection data T ₁ to H ₅ .
If not detected from T _5, the foam surface _h 21 _{to h 25}
There If it is detected, detects the lowest detection areas R ₁ to R ₅ as the liquid surface. Further, if also detected the foam surface _h 21 _{to h 25,} a histogram of the detection area _R 1 to R _5, when the illuminance is low (there is foam illuminance decreases)
Is determined as "abnormality of foam", and when the level is high (there is no foam and the flat lighting 35 passes through the beer bottle 31 and the illuminance is high), it is determined as "insufficient". If none of the above applies, it is determined as "unknown".

Each liquid level h in each of the detection areas R _{1 to} R _5
11 If the hits to h ₁₅ only the edge is detected, detects the top of the detection area _R 1 to R ₅ as Awamen.

Next, in step # 5, the image processing apparatus inspection processing unit 51 waits for input of detection signals from the photoelectric sensors 32a and 32b corresponding to the arrival of the beer bottle 31 flowing next.

The beer bottles having been subjected to the above-mentioned inspection of the amount of filling are:
The heterogeneous crown inspection machine 17 inspects the heterogeneous crown and sends it to the labeler 18.

In this labeler 18, a plurality of beer bottles 31 are flown on a circular rotary, and a back label 47 is sequentially attached to the beer bottles 31 by a back label attaching machine 41 shown in FIG. As shown in FIG. 12, the laser printer 42 prints information on the label 47, such as the symbol of the manufacturing plant, the expiration date, the date of manufacture, the date of manufacture, and the time symbol.

In the label printing inspection device 60, a plurality of beer bottles 31 sequentially flow on the rotary 40, and when these beer bottles 31 reach the detection areas of the photoelectric sensors 43a and 43b, the photoelectric sensors 43a and 43b
1 is detected (the photoelectric sensor is turned on), and the detection signal is output.

The image processing apparatus inspection processing section 61 follows the inspection processing flowchart shown in FIG.
At 0, when the detection signals from the photoelectric sensors 32a and 32b are received, in step # 11, the electronic shutter of the CCD camera 44 is opened after a certain time from the detection timing of the photoelectric sensors 32a and 32b as shown in FIG.
An image signal output from the CCD camera 44 is captured.

In the image processing apparatus inspection processing section 61, in steps # 11 to # 18,
The image data acquired by the CD camera 44 is searched for information on, for example, the sign of the manufacturing plant and the expiration date printed on the back label 47, and thereafter, the position of the information including the sign of the manufacturing plant is used as a reference position for other information. Expiration date,
The manufacturing date, the manufacturing date, and the time symbol are respectively searched, and the manufacturing factory symbol “B” printed on the back label 47 based on the degree of coincidence (score value) between the searched information and the registered data. Shelf life "0", date of manufacture "year 0
"April", "Lower H" on the production date, and time code "NH" are judged as good or bad.

More specifically, the search inspection flow shown in FIG.
-Print inspection is performed according to the chart. Search means 6
2 are the same as those shown in FIG. 21 in steps # 20 and # 21.
Image data captured from the CCD camera 44
Search area E₁"B" and prize of manufacturing factory
Reference model M with “0” for the expiration date₁Find a position that matches
A search process is performed. In this search process, the reference mode
Dell M₁Between the features of the image and the features in the captured image data
Evaluations for each of these compatible features.
This evaluation result is represented by a numerical value. Numerical value of this evaluation result
Is called a score value and is represented by, for example, 0 to 100.
You. The higher this score value, the more the reference model M ₁According to
To indicate that

[0081] determination means 63 compares the score value as defined score value for the reference model M ₁ of within the search area E _1, the manufacturing plant the score value is printed at least prescribed score value back label 47 The symbol "B" and the expiration date "0" are determined to be normal, and less than that are determined to be defective.

[0082] The determination means 63 in the step # 21, the reference model M ₁ and coincides with the reference model M ₁ in the search area E ₁ moiety (the information including the manufacturing plant symbol "B" position) (The shift amounts Δx and Δy of the reference position) are obtained.

Next, the search means 62 determines in step # 22
In, a reference position the position of the "0" of the manufacturing plant of the symbol "B" expiration date, to set the search area E ₁₂ for searching the expiration date "December" from the reference position. The setting of this search area E _{1 2,} the reference model M of the shelf as a reference position that has been pre-registered date "December"
_This is performed by adding the deviation amounts Δx and Δy of the reference position to the distance from the reference position ₂ . The size of the search area E ₁₂ at this time may as small than the conventional search area E _2.

The method of setting the reference model and the search area will be specifically described with reference to the schematic diagram shown in FIG. 22. First, in the setting procedure, the capture range W is registered from the image data. At this time, the coordinates (w
x, wy) and size (swx, swy).

[0085] Next, to register the reference model _{M 1.} In this case the drawing on the top left corner of the reference model _{M 1} coordinates _(M 1x, M
_1y ) and size ( _Sm1x , _Smiy ).

[0086] Next, to register the search area _{E 1.} In this case the drawing on the top left corner of the search area _{E 1} coordinates _{(E 1x,}
E _1y ) and size (S _E1x , S _Eiy ).

Next, the reference model M ₂ and the search area E ₂
Register

[0088] In the search procedure, first, takes in the reference image data, then sets the search area E _1, searches the reference model M _1. Thereby, the detection deviation amount Δx
(= Δx ₁ ) and Δy (= Δy ₁ ) are obtained. The actual search position M ₁ ′ is M ₁ ′ = (M _1x −Δx ₁ , M _1y −Δy ₁ ).

Next, a search area E ₂ ′ is set, and the reference model M ₂ is searched.

E ₂ ′ = (E _2x −Δx ₁ , E _2y −Δy
₁ ) The actual search position M ₂ ′ is M ₂ ′ = (M _2x + Δx ₂ , M _2y + Δy ₂ ).

[0091] Then, the search means 62 performs a search process for detecting the position that matches the reference model M ₂ of the expiration date "December" in the search area E within _12. This search process performs correspondence between features in the reference model M ₂ features and capture image data, evaluated for each feature taken of this correspondence, representing the evaluation result in score value.

The search processing parameters include an X coordinate, a Y coordinate, a rotation angle, an enlargement / reduction ratio of the same shape, an X-direction enlargement / reduction ratio, and a Y-direction enlargement / reduction ratio. Search means 62
Is the X coordinate, Y coordinate, rotation angle,
The processing time is shortened using the same shape enlargement / reduction ratio.
If the evaluation range of the same shape enlargement / reduction ratio (1.0 = same) as the rotation angle is increased, the processing time becomes longer. Therefore, the rotation angle (= ± 1 degree) and the same shape enlargement / reduction ratio (0. 8-1.
Use 2). The reason why the rotation angle is necessary is that the back label 47 is slightly rotated due to the accuracy of attaching the back label 47. The reason why the same shape enlargement / reduction ratio is required is that the beer bottle 31 varies in size in the front-back direction with respect to the CCD camera 46, so that the size changes.

[0093] determination means 63, best before for comparing the score values for the reference model M ₂ of within the search area E ₁₂ and the specified score value, the score value has been printed at least prescribed score value back label 47 The term "December / Year" is determined to be normal, and less than that is determined to be defective.

Next, the search means 62 determines in step # 23
, The position of the symbol “B” of the manufacturing plant and the expiration date “0” is set as a reference position, and the manufacturing date “year 0
April "Setting the search area E ₁₃ for searching. The setting of this search area E ₁₃ is the shift amount Δx distance to the reference position of the reference model M ₃ in advance that are registered reference position and manufacturing date as the "04 May year", [Delta] y
This is done by adding The size of the search area E ₁₃ at this time may as small than the conventional search area E _3.

Next, the search means 62 sets the search area E
Within ₁₃ performs a search process for detecting the position that matches the reference model M ₃ of the manufacturing date "04 May year". This search process performs correspondence between features in the feature and the captured image data of the reference model M _3, evaluated for each feature taken of this correspondence, representing the evaluation result in score value.

[0096] determination means 63, year of manufacture for comparing the score values for the reference model M ₃ of in the search area E ₁₃ and the specified score value, the score value has been printed at least prescribed score value back label 47 The month “April” is determined to be normal, and less than that is determined to be defective.

Next, the search means 62 determines in step # 24
, The position of the symbol “B” and the expiration date “0” of the manufacturing factory is set as a reference position, and the manufacturing date is “lower H” from this reference position.
Setting the search area E ₁₄ for searching. The setting of this search area E ₁₄ is carried out by adding the distance between the reference model M ₄ of the reference position that has been registered in advance as described above manufacturing date "under H" shift amount Δx of the reference position, the Δy . The size of the search area E ₁₄ at this time may as small than the conventional search area E _4.

Next, the search means 62 sets the search area E
The search process for detecting perform position matching the reference model M ₄ date of manufacture "under H" in the _14. In this search process,
Perform correspondence between the features in the reference model M ₄ features and capture image data, evaluated for each feature taken of this correspondence, representing the evaluation result in score value.

[0099] determination means 63 compares the score value as defined score value for the reference model M ₄ of in the search area E _14, manufacturing date score value is printed at least prescribed score value back label 47 "Lower H" is determined to be normal,
Anything less than that is determined to be defective.

Next, the search means 62 determines in step # 25
In the above, the symbol "B" of the above-mentioned manufacturing factory and the expiration date "0"
A reference position a position of the sets search area E ₁₅ for searching the time symbol "NH" from the reference position. The setting of the search area E ₁₅ is performed by adding pre-shift amount of the reference position to the distance between the reference model M ₅ of that are registered reference position and the time symbol "NH" [Delta] x, a [Delta] y. The size of the search area E ₁₅ at this time may as small than the conventional search area E _5.

[0102] Then, the search unit 62 performs search processing for detecting a position corresponding to the reference model M ₅ times symbol "NH" in the search area E _15. In this search process, performs a correlation between the feature in the feature and the captured image data of the reference model M _5, evaluated for each feature taken of this correspondence, representing the evaluation result in score value.

[0102] determination means 63 compares the score value for the reference model M ₅ of within the search area E ₁₅ and the specified score value, the time symbol score value is printed at least prescribed score value back label 47 "NH" is determined to be normal, and less than "NH" is determined to be defective.

Next, in step # 26, the judging means 63 checks the manufacturing factory symbol “B” printed on the back label 47, the expiration date “0”, the expiration date “December of year”, and the production date “year”. April ", Production date" Lower H ", Time symbol" NH "
Is determined, a command to pay out the defective beer bottle 31 from the rotary 40 is sent to the payout unit 48.

Next, in step # 19 shown in FIG. 14, the image processing apparatus inspection processing section 61 detects the next flowing beer bottle 31, and receives the detection signals from the photoelectric sensors 43a and 43b. Wait for.

The beer bottle 31 having been subjected to the above label printing inspection is sent to the caser 9 as shown in FIG. 1, and the beer bottle into which the beer 13 has been poured is put in the P box 1 and placed in the palletizer 20. Is stored in. And it is shipped by the transport vehicle 2.

As described above, in the first embodiment, the liquid level portion of the beer injected into the beer bottle 31 is imaged to acquire the image data, and this image data is transferred to the plurality of detection areas R ₁ to R ₁ . divided into R _5, these detection areas R
₁ to R each liquid level every _{5 h} 11 _{to h 15} and the foam surface _{h 21} ~
Injection volume of beer, based on the liquid level h ₁₃ and Awamen h ₂₃ serving as them median detects h _25, since checks if foam height is within the prescribed range S, the liquid surface of the beer Even if it is not in a horizontal state due to swinging, the positions of the liquid surface and the bubble surface can be accurately detected, and a highly accurate inspection of the amount of filling can be performed.

[0107] In particular, since shaking the liquid surface of the beer makes a determination based on the liquid level h ₁₃ and Awamen h ₂₃ serving as a median value, can detect the liquid level and Awamen highly accurate beer. That, not shaking beer liquid surface is always symmetrically, for example, sometimes the liquid level rises parsley on one side and the liquid level h ₁₃ and Awamen h ₂₃ serving as a central value in this case
Rather, the liquid level _h 11 _{to h 15,} the foam surface _h 21 to h
It is conceivable to calculate each of the ₂₅ average values, but then it is possible to be dragged to a value that rises to one side.

Therefore, the beer bottle 31 flowing to the line 30
Due to the influence of the vibration of the belt conveyor or the change in the speed of the flow, the liquid surface shakes, and even if the liquid surface is inclined, without being determined as `` insufficient '' or `` excessive '' as in the past, It can be flown to the line 30 as a good product.

Further, after the arrival of the beer bottle 31 is detected, the back label 47 attached to the beer bottle 31 is imaged and its image data is obtained. After searching for the symbol “B” and the expiration date “0”, the expiration date “December of December” and the production date “Year” are set using the position of the symbol “B” and the expiration date of this manufacturing plant as a reference position. "April", production date "lower H", time symbol "NH", and the searched production plant symbol "B", production date "0", expiration date "December", production The production factory symbol “B” and the production date “0”, which are printed based on the degree of coincidence with the registered data of the date “April”, the production date “Lower H”, and the time symbol “NH”, Shelf life "December year", production date "Year 04
Month ", manufacture date" under H ", the time symbol" NH "good, since determining the defect, the size of each search area E ₁₂ to E _{1 5} may be smaller than the conventional search area, correspondingly The search time can be shortened, and as a result, the manufacturing factory symbol “B” printed on the back label 47, the manufacturing date “0”, the expiration date “December”, and the manufacturing date “04”
The time for searching for "month", production date "lower H", and time symbol "NH" can be reduced. For example, the beer bottle 31 flows at a speed of, for example, about 200 bottles to 800 bottles per minute. The printed characters of the back label 47 can be inspected at a high speed of about 300 ms to 75 ms per printing.

Therefore, before the beer bottle 31 flowing to the rotary 40 reaches the label inspection, the inspection of the printed characters of the back label 47 can be completed.

(2) Next, a second embodiment of the present invention will be described with reference to the drawings. The same parts as those in FIG. 9 are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 23 is a block diagram of the label printing inspection apparatus. The image processing device inspection processing unit 61 of the label print inspection device 60 has a function of a rotation deviation correcting unit 64. The rotation deviation correcting means 64 is provided with the back label 4
7 is used as a reference position based on the image data obtained by imaging 7 and the information of the manufacturing factory symbol “B” and the expiration date “0”. From this reference position, the expiration date “Dec.
When the search areas E _{12 to} E ₁₅ of “April”, the production date “Lower H”, and the time symbol “NH” are obtained, these reference positions and the expiration date “December of December”, the production date of “April of April”, Beer bottle 3 between each distance from the production date “lower H” and time symbol “NH”
It has a function of adding each correction of the length in consideration of one cylindrical shape.

A specific correction method will be described with reference to FIG. Assume that the radius of the beer bottle 31 is R, and the characters “A” and “B” printed on the back label 47 are inspected. The letter "A" as a reference character of the reference position, a shift amount of character "A" of the image data (detected at sample image) Q ₁₀ obtained by the imaging of the registration time of capturing the image M ₁₀ and the CCD camera 44 .DELTA.A And the shift amount of the character “B” is ΔB
And Also, the registered coordinates of the character “A” are X _A , and the character “B”
The registration coordinates of the _{X B.}

[0114] The distance L between the letter "A" and the letter "B", L _{= X} B -X A _... is (3).

[0115] If you do not take into account the cylindrical shape of beer bottles 31, image Q out the letter "A" in the registration during the capture image M ₁₀ is Ken
Letter "B '" when there is a movement in the' coordinate X _A as ₁₀ letters "A"_'coordinates of, X _B' becomes _{= X A '+ L ... (} 4).

Considering the cylindrical shape of the beer bottle 31, the central angle θ _A of the character “A” on the circumference of the beer bottle 31 is defined as θ _A = sin ⁻¹ (X _A / R) (5) The character “B” Is the central angle θ _B of the beer bottle 31 on the circumference θ _B = sin ⁻¹ (X _B / R) (6) The central angle θ _A ′ of the character “A ′” on the circumference of the beer bottle 31 is θ _A ′ = sin ⁻¹ (X _A ′ / R) (7) The difference Δθ _A between the central angles of the characters “A” and “A ′” is Δθ _A = θ _A ′ −θ _A (8) 'When the coordinates of the representative by using the [Delta] [theta] _{a, X B} letter _{"B"' = R · sin (θ B} + Δθ a) ... a (9).

[0117] character distance L between the letter "A" and "B"_{'is,L' = X B '-X} A' ... is (10).

Accordingly, when the cylindrical shape of the beer bottle 31 is considered, the difference ΔL between the distance between the character “A” and the character “B” is as follows: ΔL = L′−L (11) Thus, the distance difference Δ from the coordinates of the character “A”
_'By setting the search area of the letter "B", the letter "B' coordinate X _B shifted by L becomes a" can be accurately detected.

However, the rotational deviation correcting means 64 searches the information of the symbol "B" of the manufacturing factory and the "0" of the expiration date from the image data obtained by imaging the back label 47, and uses this as a reference position. , expiration date "December" from the reference position, manufacturing date "04 May year", the date of manufacture "under H", each search area E ₁₂ ~E of time symbol "NH"
₁₅ , the reference position and the expiration date “year 12
Month ", 04 May manufacturing date" year ", set the date of manufacture" under H ", the time the symbol" each search area E ₁₂ ~E ₁₅ by shifting each only difference ΔL of each distance corresponding to each distance between the NH " And
Determination means 63 Expiration date from these search area E ₁₂ to E ₁₅ within "December", manufacturing date "04 May year", production date "under H", and detects the time symbol "NH".

The rotation deviation correcting means 64 is added for the following reason. That is, the label printing inspection
Since the operation is performed on the circular rotary 40, the flow speed of the beer bottle 31 changes on the rotary 49, and when the image capturing timing by the CCD camera 44 changes, the shape of the beer bottle 31 in the captured image data changes. I will.

Normally, as shown in FIG. 25A, a beer bottle (indicated by a dotted line) 31 is detected by the photoelectric sensors 43a and 43b, and then the beer bottle 3 is detected by a delay time of image capture.
1 captures an image of the CCD camera 44 having a fixed shutter speed almost in front of itself, and captures the image signal.

[0122] If the image data captured in this manner, FIG. (A) for example, time symbol "NH from the reference model M ₁ of the" 0 "symbol" B "and expiry date of the manufacturing plant as shown in the lower part when determining the search area _{E 15} of the "correctly can set search area _{E 15.}

However, if the flow speed of the beer bottle 31 flowing on the rotary 40 becomes faster than the normal flow speed (including the case where the flow speed is slower), a certain time (the photoelectric sensor 43
24B, the distance between the time when the electronic shutter of the CCD camera 44 is released and the time when the electronic shutter of the CCD camera 44 is released becomes longer, and as shown in FIG. When the electronic shutter of the CCD camera 44 is released after detecting (shown by a dotted line) 31, the shutter speed is fixed and CC
When viewed from the D camera 44, the beer bottle 31 moves to the right side compared to the normal case, and a displacement corresponding to the rotation angle of the circular rotary 40 occurs. Further, since the beer bottle 31 is cylindrical,
The left and right images viewed from the center of the field of view of the CCD camera 44 are reduced left and right.

The rotary 40 operates at a low speed at the start of the flow of the beer bottle 31, gradually increases the speed, and sometimes flows at a higher speed than the normal flow speed. In the rotary 40, the speed at which the beer bottle 31 flows is not always constant, and there is a high possibility that the image data captured by the CCD camera 44 is reduced to the left and right sides to be varied.

For this reason, the beer bottle 3
When 1 flows at high speed, for example, a time symbol
"NH" is the reference model M₁The distance from the
When the vehicle is moving at high speed, the reference model M₁Long distance from
It becomes. FIG. 25 (b) shows the state at high speed,
For example, the time symbol “NH” on the image data is moved to the left side on the drawing.
The reference model M₁The distance from is shortened. For this reason,
Search area E at registered coordinates_FifteenEven if you set
Cannot search for the symbol "NH" and search area E _FifteenSeat
Modify mark and search area E_Fifteen’Must be set to
You.

Therefore, by adding the rotation deviation correcting means 64 to the first embodiment, the rotary 4
At 0, drive at low speed at the start of the flow of the beer bottle 31,
The speed at which the beer bottle 31 flows in the rotary 40 is not always constant, and the image data captured by the CCD camera 44 is reduced to the left and right sides so as to gradually increase the speed and flow at a higher speed than the normal flow speed. even greater likelihood of those vary Te, accurately from the reference model M ₁ can set each search area E ₁₂ to E _15, can avoid detection errors of information printed on the back label 47.

Label printing is performed on a rotary 40 rotating at a high speed.
1 is sandwiched and fixed from above and below, but as shown in FIGS. 26 and 27, a deviation occurs in the rotation direction of the beer bottle 31, and the CCD has a cylindrical shape due to the cylindrical shape of the beer bottle 31.
The space between the characters located in the peripheral part of the beer bottle 31 on the image data acquired by the camera 44 becomes narrow. Therefore, the distance varies from the reference model M ₁ to a reference position, for example time symbol "NH", accurately becomes impossible search time symbol "NH" in the search area E ₁ within _5, may be detected error occurs is there.

Accordingly, by adding the rotation deviation correcting means 64 to the first embodiment, even if a deviation occurs in the rotation direction of the beer bottle 31 on the rotary 40 rotating at high speed, the reference position can be adjusted. exactly from the model _{M 1} can set each search area _E 12 _{~E 1 5,} can avoid detection errors of information printed on the back label 47.

As described above, in the second embodiment, the information of the symbol “B” of the manufacturing factory and the information “0” of the manufacturing date are determined from the image data obtained by imaging the back label 47. From this reference position, the expiration date “year 12
Month ", 04 May manufacturing date" year ", the date of manufacture" under H ", when determining the respective search area E ₁₂ ~E ₁₅ of time symbol" NH ", these reference position as the expiration date" December ", production Since the rotation deviation correcting means 64 for correcting each of the lengths in consideration of the cylindrical shape of the beer bottle 31 is provided between the respective distances from the date "April", the production date "Lower H", and the time symbol "NH". In addition to the effects of the first embodiment, the rotary 40 operates at a low speed at the start of the flow of the beer bottle 31, gradually increases the speed, and flows at a higher speed than the normal flow speed. a rotary 40 on which rotates at high speed, even if misalignment occurs with respect to the rotational direction of the beer bottle 31, can be accurately set each search area E ₁₂ to E ₁₅ from the reference model M _1, printed on the back label 47 Information detection errors can be avoided. You.

The present invention is not limited to the above-described first and second embodiments, and can be variously modified in the implementation stage without departing from the gist of the invention.

Furthermore, the first and second embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent features. For example, even if some components are deleted from all the components shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the problem described in the column of the effect of the invention can be solved. In the case where a certain effect can be obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.

The first and second embodiments may be modified as follows. For example, in the first and second embodiments, a case has been described in which the present invention is applied to the inspection of the amount of flavor of the beer bottle 31 after the beer is injected into the beer bottle 31 and the inspection of the printed characters of the back label 47. The present invention is not limited to this, and can be applied to all the inspections of the quantity of the product in which the carbonated drinking water is poured into the bottle and the printed characters of the label.

Further, the present invention is not limited to the inspection of the amount of beer charged into the beer bottle 31, but also includes the amount of contents such as powder enclosed in the container and various contents enclosed and sealed in the container. It can also be applied to inspect the quantity of goods.

Information to be printed on the back label 47 is as follows.
Not limited to the symbol of the manufacturing factory, the date of manufacture, the expiration date, and the time symbol, other information may be printed, and the printed information may be inspected.

Although the beer bottle 31 is illuminated with visible light and the transmitted image is captured, the beer bottle 31 is not limited to visible light, and electromagnetic waves such as infrared rays are illuminated on the beer bottle 31 and the transmitted electromagnetic wave is imaged and inspected. May be performed. This allows
In addition to a light-transmitting container such as a beer bottle 31, the amount of contents sealed in a can that does not transmit visible light, such as a tea bottle, can be inspected. That is, the principle uses contrast.

[0136]

As described above in detail, according to the present invention, a bottled beer which can accurately detect each position of the liquid level and the foam level and perform a high-accuracy inspection of the filling amount even when the liquid level is not horizontal due to shaking. Can be provided.

Further, according to the present invention, it is possible to provide a method for producing a bottled beer and a device therefor, in which part of characters in a label printing inspection can be seen.

Further, according to the present invention, it is possible to provide a method and an apparatus for manufacturing a bottled beer which can avoid a detection error of information printed on a label even if a flowing speed of a bottle changes to a high speed or a low speed.

Further, according to the present invention, it is possible to provide a method and apparatus for producing a bottled beer capable of avoiding an error in detecting information printed on a label even if a deviation occurs in the rotation direction of the bottle.

Further, according to the present invention, it is possible to provide a method of manufacturing an enclosure capable of accurately detecting the position of the surface of the contents even if the contents are not in a horizontal state and performing a highly accurate inspection.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a manufacturing process of a bottled beer according to the present invention.

FIG. 2 is a side view of the filling amount inspection device according to the first embodiment of the present invention as viewed from the upstream side of the line.

FIG. 3 is a diagram showing a specific arrangement position in the first embodiment of the taste detection device according to the present invention.

FIG. 4 is a diagram showing a flow of beer bottles in the first embodiment of the taste detection device according to the present invention.

FIG. 5 is a schematic diagram of image data captured by a CCD camera of the filling amount inspection device according to the present invention.

FIG. 6 is a schematic view showing a detection operation of a liquid level and a foam level in the taste detection device according to the present invention.

FIG. 7 is a diagram for explaining an erroneous determination when the liquid level is tilted in the filling amount inspection device according to the present invention.

FIG. 8 is an inspection processing flowchart in the first embodiment of the taste amount inspection apparatus according to the present invention.

FIG. 9 is a configuration diagram of the label print inspection device according to the first embodiment of the present invention as viewed from above the rotary.

FIG. 10 is a diagram showing a specific arrangement position of the label print inspection device according to the first embodiment of the present invention.

FIG. 11 is a diagram showing a flow of beer bottles in the first embodiment of the label printing inspection device according to the present invention.

FIG. 12 is a diagram showing a print character configuration of a back label.

FIG. 13 is a schematic diagram showing a search area in the label print inspection device according to the present invention.

FIG. 14 is an inspection processing flowchart in the first embodiment of the label print inspection apparatus according to the present invention.

FIG. 15 is a diagram showing a measurement area in the first embodiment of the taste detection device according to the present invention.

FIG. 16 is a diagram showing a detection area in the first embodiment of the taste detection device according to the present invention.

FIG. 17 is a schematic diagram showing a liquid level detection operation in the first embodiment of the filling amount inspection device according to the present invention.

FIG. 18 is a diagram showing a liquid level and a bubble level detecting operation in each detection area in a state where the liquid level is inclined in the first embodiment of the filling amount inspection device according to the present invention.

FIG. 19 is a diagram showing an electronic shutter opening timing of the CCD camera in the first embodiment of the label print inspecting apparatus according to the present invention.

FIG. 20 is a search inspection flowchart in the first embodiment of the label print inspection device according to the present invention.

FIG. 21 is a schematic view showing a search procedure in the first embodiment of the label print inspection apparatus according to the present invention.

FIG. 22 is a schematic diagram showing a search area in the label print inspection device according to the first embodiment of the present invention.

FIG. 23 is a configuration diagram showing a second embodiment of the label print inspection apparatus according to the present invention.

FIG. 24 is a schematic diagram showing the operation of a rotational displacement correcting unit in the label print inspection device according to the second embodiment of the present invention.

FIG. 25 is a schematic diagram showing the operation of a rotational displacement correcting unit in the label print inspection device according to the second embodiment of the present invention.

FIG. 26 is a schematic diagram showing the operation of a rotational displacement correcting means in the label print inspection device according to the second embodiment of the present invention.

FIG. 27 is a schematic diagram showing the operation of a rotational displacement correcting unit in the label print inspection device according to the second embodiment of the present invention.

[Explanation of symbols]

18: Labeler 30: Line 31: Beer bottle 32a, 32b: Photoelectric sensor 33: CCD camera with electronic shutter (CCD camera) 35: Flat illumination 36: Payout section 40: Rotary 41: Back label pasting machine 42: Laser printing machine 43a , 43b: photoelectric sensor 44: CCD camera with electronic shutter (CCD camera) 46: flat illumination 47: back label 50: filling amount inspection device 51: image processing device inspection processing section 52: dividing means 53: inspection means 60: label printing Inspection device 61: Image processing device inspection processing unit 62: Search means 63: Judgment means 64: Rotational deviation correction means

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[Procedure amendment]

[Submission date] December 19, 2000 (200.12.
19)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

Title: Method and apparatus for producing bottled beer and method for producing enclosure

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for injecting beer into a plurality of containers, for example, beer bottles, successively flowing into a production line, and then adding information such as a manufacturing plant and a shelf life to the beer bottles. The present invention relates to a method for producing a bottled beer to which a printed label is attached, an apparatus therefor, and a method for producing an enclosure.

[0002]

2. Description of the Related Art When a container is filled with a predetermined liquid constituting an entity to be bought and sold, and a label is attached to the container with a product name or a label stipulated by law, etc., the product is not flavored. Labels on the quantities and labels must be made in accordance with the law.

[0003] For example, when the predetermined liquid is liquor such as beer or low-malt beer, a problem in the liquor tax law arises if a larger amount of beer is enclosed in a beer bottle and shipped. In addition, if the number is smaller than the display, a problem in the measurement method arises, so that it is necessary to strictly manage the error within a predetermined error range.

[0004] Also, the label of the label is required by the Food Sanitation Law under the Food Sanitation Law. In this case, it is necessary to confirm whether the label is correctly printed.

Conventionally, the work of managing the amount of beer and the work of confirming whether or not the beer is correctly printed have often relied on visual inspection.

[0006]

However, in a bottled beer production line, for example, it is necessary to perform a 100% inspection, and thus it is necessary to perform the above-described inspection work while the beer bottle is being transported. However, the contents (beer) fluctuate in the beer bottle. Measurement cannot be performed accurately. In addition, since the display of the label is confirmed visually, it takes a long time to perform an inspection of all products.

Accordingly, the present invention provides a method and apparatus for producing a bottled beer capable of accurately detecting each position of the liquid level and the foam level and performing a high-accuracy inspection of the filling amount even when the liquid level is not horizontal because the liquid level fluctuates. The purpose is to provide.

Another object of the present invention is to provide a method and an apparatus for producing a bottled beer which can perform a total number of label printing inspections without reducing productivity.

Another object of the present invention is to provide a method of manufacturing an enclosure capable of accurately detecting the position of the surface of the contents even if the contents are not in a horizontal state and performing a highly accurate inspection.

[0010]

SUMMARY OF THE INVENTION According to the present invention, there is provided a bottled beer having an inspection step of inspecting the amount of beer while the bottle into which beer is injected is distributed on a production line. The method, wherein the inspecting step includes irradiating the bottle with light that can pass through the bottle, capturing an image of the light that has passed through the bottle, and an area where the beer exists and the The boundary between the region where the layer of foam formed from beer is present, and the boundary between the region where the layer of foam is present and the region where the beer and the foam in the bottle are not present, respectively. The relative position from the predetermined reference position of the boundary when the image is divided into a plurality of determination regions so as to be included in the image is calculated from the image for each of the determination regions, and the center of each of the relative positions is calculated. The value is within the specified tolerance A bottled beer manufacturing method characterized by comprising the step of comparing either the.

According to a second aspect of the present invention, in the method for producing a bottled beer according to the first aspect, the identification of the boundary is performed based on data obtained by filtering at least information on shading of image data based on the image. The method is characterized in that a boundary is specified.

According to a third aspect of the present invention, in the method for producing a bottled beer according to the first aspect, when the liquid level of the beer is lower than the specified liquid level range, it is determined that the beer is insufficient, and the beer liquid is lower than the specified liquid level range. When the high level is determined to be excessive, and if the liquid level is normal within the liquid level specified range and the foam height of the foam is abnormal, it is determined to be defective as a foam height abnormality,
It is distinguished from non-defective products.

According to a fourth aspect of the present invention, there is provided a cylindrical bottle having a label on which a plurality of pieces of information relating to beer to be enclosed are displayed, the label being displayed while being distributed on a production line. A method for producing a bottle of beer comprising an inspection step of performing an inspection, wherein the inspection step is a step of fixing and transporting the bottle so that the label faces in the same direction when passing through the same point, Imaging the label of the bottle being conveyed to obtain image data, and searching the image data for a display of any one of the plurality of information, inspecting the display, Specifying an area on the image data in which one of the information displays is present; and determining a relative position of an area in which another display, which is preset with respect to the specified area, should exist. A step of specifying a search area in the image data, and a step of searching for a display that should be in the search area from the search area and inspecting the display. This is a method for producing bottled beer.

According to a fifth aspect of the present invention, in the method for producing a bottled beer according to the fourth aspect, the inspecting step searches for an indication including at least a manufacturing factory symbol printed on the label. Determine the amount of deviation from the registered position of the display position including the symbol of the manufacturing plant,
Next, each search area for displaying the expiration date, the manufacturing month, and the time printed on the label is obtained according to the shift amount with the position of the display including the symbol of the manufacturing factory as a reference position.

According to a sixth aspect of the present invention, in the method for producing a bottled beer according to the fourth aspect, the inspection step includes printing on the label attached to the bottle passing on a circular production line. Inspection of the obtained information, the expiration date, the manufacturing month, when searching for each search area of the information of the time as the reference position information including the symbol of the manufacturing plant, when the reference position and each of the information and In each of the distances, each correction of the length in consideration of the cylindrical shape of the bottle is added.

According to a seventh aspect of the present invention, there is provided a bottled beer manufacturing apparatus for manufacturing a bottled beer by sequentially injecting beer into a plurality of bottles continuously circulated through a manufacturing line. A sensor for detecting arrival, and an imaging unit for receiving an arrival signal from the sensor, irradiating the bottle with transmittable light, capturing an image of the light transmitted through the bottle, and acquiring image data thereof. A boundary between a region where the beer is present and a region where a layer of a foam generated from the beer is present, and a region where the layer of the foam is present, based on the image data obtained by the imaging unit. And a boundary between the beer and the region in which the foam in the bottle does not exist, from a predetermined reference position of the boundary when the image is divided into a plurality of determination regions so as to be included in each region. Means for calculating the relative position from the image for each of the determination areas, comparing the median value of each relative position within a predetermined allowable range, and calculating the relative position on the manufacturing line according to the inspection result of the means. Means for paying out defective products from the production line out of the bottles into which the flowing beer has been poured, in a bottle beer production apparatus.

According to the present invention, a plurality of pieces of information about the beer are displayed on the surface of the bottle after the beer is sequentially injected into a plurality of cylindrical bottles continuously circulated in the production line. In a bottle beer manufacturing apparatus to which a label is attached, the bottle flowing in the manufacturing line, when passing through the same point, so that the label is oriented in the same direction, the transport means for fixing and transporting the bottle, A sensor for detecting the arrival of the bottle conveyed by the conveying unit, an imaging unit for receiving the arrival signal from the sensor, imaging the label attached to the bottle to obtain image data thereof, and Searching the display of any one of the plurality of pieces of information from the image data obtained by the means, inspecting the display, and checking the display of any one of the pieces of information; Means for specifying an area on the image data where a display is present, and, based on a relative positional relationship of an area where another display is to be set in advance with respect to the specified area, Means for specifying a search area, means for searching for a display that should be in the search area from within the search area, and means for inspecting the display, and among the bottles circulated to the transport means in accordance with the result of the inspection. Means for paying out defective products from the transporting means, and when searching for the respective search areas for the expiration date, the manufacturing month, and the time information with the information including the symbol of the manufacturing factory among the information as a reference position, the cylindrical shape of the bottle Rotation deviation correcting means for performing each correction of the length in consideration of the cylindrical shape of the bottle between the respective distances between the reference position and the information in consideration of the above, It is a concrete apparatus.

According to a ninth aspect of the present invention, there is provided a method for producing an enclosure, comprising an inspection step of inspecting an amount of the contents while distributing the container filled with the contents through a production line, The inspection step includes irradiating the container with light that can pass through the container, capturing an image of the light transmitted through the container or reflected in the container, and the contents are present. The relative position from a predetermined reference position of the boundary when the image is divided into a plurality of determination regions so that the boundary between the region and the region where the contents do not exist in the container is respectively included, Calculating from the image for the discrimination area, and comparing whether the median value of each relative position is within a predetermined allowable range with respect to a predetermined reference relative position. This is a method for producing an enclosure.

According to a tenth aspect of the present invention, there is provided a cylindrical container to which a label on which a plurality of pieces of information relating to the contents to be enclosed are displayed is attached while the container is being distributed on a production line. A method of manufacturing an enclosure including an inspection step of inspecting, wherein the inspection step is a step of fixing and transporting the container so that the label faces in the same direction when passing through the same point. And the step of capturing the label of the container being conveyed to obtain image data, and searching for a display of any one of the plurality of pieces of information from the image data, and inspecting the display. A step of specifying an area on the image data in which the display of any one of the information exists, and a phase of an area in which another display set in advance with respect to the specified area should exist. A step of specifying a search area in the image data based on the positional relationship, and a step of searching a display that should be in the search area from the search area and inspecting the display. This is a method for producing an enclosure.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (1) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an overall configuration diagram showing a process for producing bottled beer. A beer bottle (empty bottle) is, for example, a plastic box (usually referred to as a P box) 1 capable of storing 20 bottles each.
, And a plurality of the P boxes 1 are loaded and collected by the transport vehicle 2. The collected P boxes 1 are dropped from the transport vehicle 2, stored in the depalletizer 3, and sent to the anchorer 4. In the anchorer 4, the beer bottle stored in the P box 1 is taken out. The P box 1 is sent to the twister 5, where it is turned downward to remove dust and the like in the P box 1. Next, the P box 1 is cleaned by the prewashing machine 6, polished by the polishing machine 7, further cleaned by the ultrasonic cleaning machine 8, and sent to the caser 9 described later.

The beer bottle is sent to a bottle washing machine 10 where it is washed, and the empty bottle inspection machine 11 inspects the filler 12 for cracks and missing holes. In this filler 12,
A plurality of beer bottles are flown on an arcuate rotary, and beer 13 is sequentially injected into the beer bottles. The beer bottle into which the beer 13 has been injected is closed by the stopper 14 and the warmer 15 warms the surface of the beer bottle to prevent dew condensation, and then sent to the filling amount inspection device 50.

As will be described in detail later, the filling amount inspection device 50 determines whether the amount of beer injected into the beer bottle and the foam height of the foam are within a prescribed range (permissible range). And if it is determined to be defective,
This defective product is paid out from the line. The beer bottles having been subjected to the inspection for the amount of incoming beer are inspected for heterogeneous crowns by the heterogeneous crown inspection machine 17 and sent to the labeler 18.

In the labeler 18, a plurality of beer bottles are flown on a circular rotary (conveying means), and a body label and a back label are sequentially attached to the beer bottles. On the back label, various information such as, for example, the manufacturing factory and the expiration date are printed. The label print inspection device 60 captures an image of the back label attached to the beer bottle, as described in detail later, and determines good or bad display of each information printed on the back label from this image data. Dispatch defective products from the line.

The beer bottle on which the label printing inspection has been performed is sent to the caser 9, placed in the P box 1, and stored in the palletizer 20. And it is shipped by the transport vehicle 2.

FIGS. 2 to 4 are diagrams showing the configuration of the above-mentioned inspection device 50. FIG. 2 is an overall configuration diagram, FIG. 3 is a layout diagram of a line (manufacturing line) 30, and FIG. FIG. In the line 30, a plurality of beer bottles 31 into which beer is poured, for example, about 20
It flows in the direction of arrow A at a speed of 0 to a maximum of 800 lines.
In the line 30, photoelectric sensors 32a and 32b each including a light projecting portion 32a that projects light in a direction intersecting the direction of arrow A and a light receiving portion 32b that is arranged with the line 30 interposed therebetween, and have an electronic shutter function. A CCD camera (hereinafter abbreviated as CCD camera) 33 is provided.

The photoelectric sensors 32a and 32b
1 is located at a height corresponding to the vicinity of the crown, and detects the presence or absence of the beer bottle 31. Note that this photoelectric sensor 3
2a and 32b are not limited to the lower part of the opening of the beer bottle 31, but may be arranged at a height position corresponding to the body or neck of the beer bottle 31 to detect the arrival of the beer bottle 31.

The CCD camera 33 is arranged at a height corresponding to the neck of the beer bottle 31. At a position facing the CCD camera 33 via the line 30, a flat illumination 35 having a planar shape is arranged as shown in FIG.

The output terminal of the CCD camera 33 is connected to an image processing device inspection processing section 51. Also, CC
A flat light 35 of visible light for uniformly illuminating the beer bottle 31 is arranged at a position facing the D camera 33 across the line 30.

With such a configuration, the photoelectric sensor 32
When it is detected by a and 32b that the beer bottle 31 has entered the inspection area, the CCD camera 33 opens the electronic shutter to image the beer bottle 31, and outputs an image signal of the image. The image processing device inspection processing unit 51 includes a CCD camera 33
And an inspection process is performed on the image data.

Next, the processing for inspecting the loaded amount will be described. Figure 5 is a schematic diagram of image data Q ₁ taken from the CCD camera 33, the beer liquid surface of the beer bottle 31 (hereinafter,
Shows the state of the liquid surface is omitted) h ₁ and beer foam.
Liquid level h ₁ and beer foam surface (hereinafter, the foam surface is omitted) the distance between h ₂ is referred to as a foam height h _3, the become inspected, position and foam height h ₃ of the liquid level h ₁ Is the amount of

[0032] Specifically, each pixel is projected (projection) process in the X direction (lateral direction) for the image data Q ₁ as shown in FIG. 6, performing a filtering process (differentiation processing) with respect to the projection result Edge detection is performed in the Y direction (arrow B direction).

Specifically, a filter (for example, a boxcar filter) is applied to the one-dimensional projection image. If the filter is a two-element filter, it starts from the beginning of the pixel of the one-dimensional projection image and sequentially subtracts the adjacent pixel from the left pixel. This is repeated for each pixel in the one-dimensional projection image. For example, a one-dimensional projection image is indicated by a numerical value for each pixel, and “0, 0, 0,
5,10,15,15,15,15,15,5,0,
0,0 ", subtraction is performed sequentially from the left pixel to the adjacent pixel, and 0-0 = 0, 0-0 = 0, 5-
0 = 5, 10−5 = 5,..., 0−0 = 0, and as a result, “0, 0, 5, 5, 5, 0, 0, 0, 0, −10,
−5, 0, 0 ”.

Also, by changing the width of the filter, for example, one pixel may be skipped, and the differential processing may be performed on the adjacent numerical values. In this case, the one-dimensional projection image is
As described above, “0, 0, 0, 5, 10, 15, 15, 1”
5,15,15,5,0,0,0 ", this is filtered to obtain" 0,5,10,10,5,0,
0, 0, -10, -15, -5, 0 ".

In such a filtering process, the appearance of edge detection can be changed by changing the size of the filter. By appropriately selecting a filter according to the case, edge detection with high accuracy can be performed. .

In this edge detection, several edges are detected. Of these, the lowermost surface where the density of the image changes from black to white is the liquid surface h ₁ (edge 1), and the uppermost surface where the color changes from white to black. Is detected as a bubble surface h ₂ (edge 2).

The liquid surface h _{1 of} the liquid surface h ₁ and the foam surface h _{2
When 1} is lower than the liquid level specified range S, it is determined to be “insufficient”, and when it is higher than the liquid level specified range (permissible range) S, it is determined to be “excess”, and both are determined to be defective. Further, when the liquid level h ₁ is the foam height h ₃ be successfully in the liquid level specified range S exceeds the liquid level defined range S is defective as "foam height abnormal".

A payout section 36 is provided on the downstream side of the taste detection device 50, and discharges defective products out of the beer bottles 31 flowing to the line 30 from the line 30 according to the result of the taste detection.

By the way, in the above-mentioned filling amount inspection device 50,
The liquid level of the beer bottle 31 flowing in the line 30 fluctuates due to the backlash of the belt conveyor or the flow speed change, and the liquid level is not always horizontal. For example, if the liquid level h ₁ is inclined as shown in FIG. 7, the liquid level h ₁ from the projection result of the captured image data are at or below the liquid level in the steady state, Awamen h ₂ also during steady of becomes higher than Awamen, is determined as "deficient" or "foam height anomaly", despite normal unless tilted liquid level h _1, there is a possibility to be paid out as bad.

Accordingly, the image processing device inspection processing section 51 of the above-mentioned filling amount inspection device 50 receives the detection signals from the photoelectric sensors 32a and 32b, captures the image signal from the CCD camera 33, and processes the captured image data. This image data is subjected to image processing, and the boundary between the area where beer exists and the area where the layer of foam generated from beer exists, and the layer of foam exists. The boundary between the region to be processed and the region where the beer and the foam in the beer bottle 31 do not exist is defined from a predetermined reference position of the boundary when the image captured so as to be included in each region is divided into a plurality of determination regions. It has a function of calculating a relative position from an image captured for each determination area, and comparing whether the median of each relative position is within a predetermined allowable range.

Specifically, the image processing apparatus inspection processing section 51
According to the inspection processing flow chart shown in FIG. 8, a dividing means 52 for dividing the image data acquired by the CCD camera 33 into a plurality of detection areas (discrimination areas), and each of the detection areas divided by the dividing means 52 The liquid level and each foam level are detected, and based on the liquid level and the foam level, which are the median values, it is checked whether or not the beer injection amount and the foam height are within the liquid level prescribed range S shown in FIG. It has each function with the inspection means 53 to perform.

The inspection means 53 determines that the liquid level and the bubble level, which are the median values, are lower than the specified liquid level range S as “insufficient”, and determines that the liquid level is higher than the specified liquid level range S. Is determined to be “excessive”, both are determined to be defective, and even if the liquid level is normal within the specified liquid level range S, the bubble height is determined to be within the specified liquid level range S.
If it exceeds, it is determined to be defective as "abnormal foam height",
When a defective beer bottle 31 is determined from the inspection result of the amount of contained food, it has a function of transmitting to the payout unit 36 a command to pay out the defective beer bottle 31 from the line 30.

9 to 11 are diagrams showing the construction of the label printing inspection apparatus 60, FIG. 9 is an overall construction diagram, FIG. 10 is a layout diagram of a rotary (entering the whole production line 30) 40, and FIG. FIG. 2 is a configuration diagram as viewed in a flow direction of a rotary 40. A plurality of beer bottles 31 into which beer is injected flow in the circular rotary 40 in the direction indicated by the arrow C at a speed of, for example, about 200 to 800 bottles per minute. On the rotary 40, a back label attaching machine 41 and a laser printing machine 42 are arranged along the line.

Downstream of the laser printer 42 disposed on the rotary 40, a light projecting section 43a and a light receiving section 43
b, and a CCD camera with an electronic shutter (hereinafter referred to as a CCD camera).
Camera 44) is arranged. The photoelectric sensors 43a and 43b are arranged at a height position corresponding to a lower part of an opening (mouth) of the beer bottle 31. The photoelectric sensors 43a and 43b may be arranged not only at the lower portion of the opening of the beer bottle 31 but also at a height corresponding to the body or neck of the beer bottle 31 to detect the arrival of the beer bottle 31.

As shown in FIG. 10, the CCD camera 44 is arranged at a height corresponding to the position where the back label 47 of the beer bottle 31 is attached. This CCD
Above the camera 44, a flat visible light flat illumination 46 is arranged.

The output terminal of the CCD camera 44 is connected to an image processing device inspection processing section 61. On the CCD camera 44 side of the rotary 40, a flat illumination 46 for uniformly illuminating the back label 47 of the beer bottle 31 is arranged.

With such a configuration, when the beer bottle 31 flows on the rotary 40 of the labeler 18, the back label attaching machine 41 attaches the back label paper 47 a to the beer bottle 31, and the laser printing machine 42
Thus, information such as the manufacturing factory and the expiration date is printed on the back label paper 47a. FIG. 12 shows a print character configuration of the back label 47. The back label 47 includes a manufacturing factory symbol (for example, B) and a shelf life (for example, 0).
The date of manufacture (for example, April 2000), the date of manufacture (for example, lower H), and the time symbol (for example, NH) are printed.

The beer bottle 31 to which the back label 47 is attached flows to the rotary 40, and when the beer bottle 31 is detected by the photoelectric sensors 32a and 32b to enter the inspection area, the CCD camera 44 opens the electronic shutter. And images the back label 47 of the beer bottle 31 and outputs the image signal. The image processing device inspection processing unit 61
An image signal from the CCD camera 44 is fetched, and a label print inspection process is performed on the fetched image data.

The label print inspection processing will be described. As shown in FIG. 13, the image processing apparatus inspection processing unit 61 stores registration pattern data of the symbol of the manufacturing factory, the expiration date, the manufacturing month, the manufacturing date, and the time symbol, here, the reference models M _{1 to} M.
₅ is stored in advance. It is to be noted that the reference model M ₁ is "0" in the manufacturing plant of the symbol "B" expiration date, reference model M ₂ is "12 May year" of the expiration date, "04 May year" in relation to the standard model M ₃ manufacturing month, reference model M ₄ is "under H" date of manufacture, reference model M ₅ is a time symbol "NH". Note that these reference models (registered pattern data) M _{1 to} M ₅ are the area boundaries of the corresponding reference model from all the model images in which the symbols of the manufacturing plant, the expiration date, the manufacturing month, the manufacturing date, and the time symbol are imaged. Is extracted, and the boundary points along the contour are expressed as a list. The boundary point is the CCD camera 4
4 is defined by the position (X, Y) in the captured image data and the direction component θ perpendicular to the contour.

The image processing apparatus inspection processing unit 61 performs search processing for detecting a position coinciding with the reference model M ₁ with respect to image data captured from the CCD camera 44 in the search area E _1. In this search processing, the reference model M ₁
Are associated with the features in the captured image data, and each of the associated features is evaluated, and the evaluation result is represented by a numerical value. The numerical value of the evaluation result is called a score value, and is represented by, for example, 0 to 100. Indicates that the score value coincides with the higher reference model M _1.

Therefore, the image processing apparatus inspection processing section 61
Comparing the score values for the reference model M ₁ in the search area E within ₁ and the specified score value, expiration date and sign production plants score value is printed at least prescribed score value to the back label 47 "B" Is determined to be normal, and less than "0" is determined to be defective.

Similarly, the image processing apparatus inspection processing unit 61
Each reference model M in each search area E _{2 to} E ₅
Performing the search process for detecting a position coinciding with ₂ ~M ₅ obtains the respective score values, these score values are determined to be normal when the above specified score value determines less defective.

If each score value for each of the reference models M _{1 to} M ₅ (score value for the symbol of the manufacturing factory, the expiration date, the month of manufacture, and the time symbol) exceeds the specified score value, the image processing apparatus inspection processing unit 45 Is determined to be a normal back label 47.

Thus, a payout section 48 is provided downstream of the label print inspection apparatus 19, and pays out defective products out of the beer bottles 31 flowing to the rotary 40 according to the label print inspection result.

By the way, the label print inspection device 60 performs each search process for detecting a position that matches each of the reference models M _{1 to} M _{5 for} each of the _five search areas E _{1 to} E ₅ , and calculates each score value. So that each search area E
It takes ₁ to E each inspection time per ₅ long, the balance between the speed of the beer bottle 31 to flow to the rotary 40, it takes too much time required for the determination of the payout necessity from the imaging of the label print, the next beer bottles There is a possibility that it will not be in time by the start of the inspection.

Therefore, the image processing apparatus inspection processing unit 61
5 displayed on the back label 47 from the image data
One of searches any one of the reference model of the reference model M ₁ ~M _5, to identify the search area should be present other reference model based on the examination position, a function of performing search processing I have.

Specifically, the image processing apparatus inspection processing unit 61
According to the inspection processing flow chart shown in FIG. 14, image signals are received from the CCD camera 44 in response to detection signals from the photoelectric sensors 43a and 43b, and label printing inspection processing is performed on the captured image data.
Beer production plant symbols from the image data obtained by the camera 44 is printed on the back label 47, expiration date, manufacturing month, searches the reference model M ₁ including manufacture date, symbols of example manufacturing plant time symbol other reference model M ₂ ~M ₅ a is expiration date based on the positional deviation result, manufacturing month, date of manufacture, the search means searches the time symbol 62
Good or bad of the symbol of the manufacturing factory, the expiration date, the manufacturing month, the manufacturing date, the time symbol printed on the back label 47 based on the degree of coincidence between the information searched by the search means 62 and the registered data. And each function of the determination means 63 for determining

When the judging means 63 judges the defect of the manufacturing factory symbol, the expiration date, the production month, the production date and the time symbol printed on the back label 47, the defective beer bottle 31 is paid out from the rotary 40. Command payout unit 48
Has the function of sending to

Next, a description will be given of a method of producing beer in a beer production process using the taste quantity inspection device 50 and the label print inspection device 60 configured as described above.

As shown in FIG. 1, 20 beer bottles (empty bottles) are stored in the P box 1 and are collected by the transport vehicle 2. These P boxes 1 are unloaded from the carrier 2, stored in the depalletizer 3, and sent to the anchor 4. In the anchorer 4, the box 1 is divided into a box 1 and a beer bottle 31, and the box 1 is sent to the twister 5,
Here, the dust and the like in the P box 1 are removed by being turned downward. Next, the P box 1 is cleaned by the prewashing machine 6, polished by the polishing machine 7, further cleaned by the ultrasonic cleaning machine 8, and sent to the caser 9 described later.

The beer bottle 31 is sent to the bottle washing machine 10 to be washed, and is inspected by the empty bottle inspecting machine 11 for cracks and missing holes, and is sent to the filler 12. In the filler 12, a plurality of beer bottles 31 are flown on an arc-shaped rotary, and beer 13 is sequentially injected into the beer bottles 31. The beer bottle 31 into which the beer 13 has been poured is closed by the capping machine 14, hot water is supplied by the warmer 15 to prevent dew condensation, and sent to the filling amount inspection device 50 shown in FIG.

When a plurality of beer bottles 31 sequentially flow on the line 30 in the filling amount inspection device 50 and the beer bottles 31 reach the detection areas of the photoelectric sensors 32a and 32b, the photoelectric sensors 32a and 32b detect the beer bottle 31. (The photoelectric sensor is turned on) and the detection signal is output.

The image processing apparatus inspection processing section 51 receives the detection signals from the photoelectric sensors 32a and 32b in step # 1 according to the inspection processing flowchart shown in FIG. The shutter is opened and an image signal output from the CCD camera 33 is captured. Note that the CCD camera 33 is
The magnification is set in advance, and the magnification is registered in the image processing apparatus inspection processing unit 51.

Next, in step # 3, the image processing apparatus inspection processing section 51 performs image processing on the image data taken in from the CCD camera 33 to obtain the liquid level and the bubble level. First, the image processing apparatus inspection processing unit 51 sets a measurement area A from image data as shown in FIG.

Next, as shown in FIG. 16, the dividing means 52 of the image processing apparatus inspection processing section 51 converts the image data in the measurement area A into a plurality of detection areas, for example, five detection areas R.
Divided into _{1 ~R 5.}

Next, the inspection means 53 checks each detection area R ₁
Each pixel is projected processing each projected length direction for each image data to R _5, the edge detection is performed by performing the filtering process (e.g., differentiation processing) with respect to the projection result. In this edge detection, but the edge is detected several positions, each detection area R ₁ to indicate lowermost surface that changes from black to white in the direction from top to bottom of the drawing by shading of these images in FIG. 17 to R a liquid surface _h 11 _{to h 15} at ₅ detects regarded as foam surface _h 21 _{to h 25} at each detection area _R 1 to R ₅ a top surface that changes from white to black in the direction from top to bottom of the drawing .

The beer bottle 31 flowing in the line 30 is a bell
Due to the influence of the vibration of the conveyor and the speed change of the flow,
The liquid level of the beer shakes. Figure 18 shows the beer
Each detection area R when the liquid surface is inclined₁~ R₅In
Each liquid level h₁₁~ H_FifteenAnd each foam surface h₂₁~ H₂₅Detection
Is shown. That is, the inspection means 53 determines that each detection area R ₁
~ R₅Projection processing for each image data
The projection data T₁~ T₅And calculate these projection data
T₁~ T₅Edge detection is performed on the
Check the lowermost surface that changes from black to white from top to bottom
Exit area R₁~ R₅At each liquid level h₁₁~ H_FifteenTo
Detects and changes from white to black from top to bottom in the drawing.
The upper surface shows each detection area R₁~ R₅Each foam surface h₂₁~
h₂₅Detected as

Next, the inspection means 53 checks each detection area R₁
~ R₅At each liquid level h₁₁~ H_{1 5}Median of
(Median value) liquid level h₁₁~ H_FifteenIn FIG. 18,
Liquid level h ₁₃The beer filling height is calculated based on the beer. this
The beer taste height (mm) is calculated by calculating the taste height (mm) = {measured taste value (pixel)-the taste reference value (pixel)} x the magnification + the reference height (mm) ... (1) . The pixels are the image of the CCD camera 33.
The magnification is the magnification of the CCD camera 33,
The height is a set value.

The inspection means 53 is provided for each of the detection areas R ₁ to R ₁ .
Foam surface _h 21 _{to h 25} become median (median value) of each foam face _h 21 _{to h 25} at R _5, obtains the beer foam height based on Awamen _{h 2 3} in FIG. 18. The foam height value (mm) of this beer is obtained by calculating the foam height value (mm) = {measured foam surface value (pixel) −measured taste value (pixel)} × magnification (2).

Next, the inspection unit 53, in step # 4, the liquid level _{h 13} and Awamen _{h 23} Tonouchi liquid level _{h 13} serving as a median value is lower than the liquid level specified range S shown in FIG. 5 Is determined to be "insufficient", and when the level is higher than the liquid level regulation range S is determined to be "excess", both are determined to be defective, and the liquid level h is determined.
₁₃ is normal within the liquid level prescribed range S, but if the foam height exceeds the liquid level prescribed range S, it is determined to be defective as “abnormal foam height”, and among the inspection results of the filling amount, a failure is determined. Is determined, the defective beer bottle 31 is transferred to line 3
An instruction to pay out from 0 is sent to the payout unit 36.

The inspection means 53 calculates the filling height (mm) and the foam height value (mm) by calculating the above formulas (1) and (2), and the filling height (mm) becomes the reference height. On the other hand, when the value exceeds the set upper limit value, it is determined as “excess”, and when the filling height (mm) is less than the set lower limit value with respect to the reference height, it is determined as “insufficient”, and the bubble height (mm) is determined. ) Is determined to be “bubble abnormal” when the value exceeds the set value. However, when determining the defective beer bottle 31 in the inspection result of the amount of flavor, the inspection means 53 sends a command to pay out the defective beer bottle 31 from the line 30 to the payout unit 36.

The edges corresponding to the respective liquid surfaces h _{11 to} h ₁₅ in the respective detection areas R _{1 to} R ₅ correspond to the projection data T ₁ to H ₅ .
If not detected from T _5, the foam surface _h 21 _{to h 25}
There If it is detected, detects the lowest detection areas R ₁ to R ₅ as the liquid surface. Further, if also detected the foam surface _h 21 _{to h 25,} a histogram of the detection area _R 1 to R _5, when the illuminance is low (there is foam illuminance decreases)
Is determined as "abnormality of foam", and when the level is high (there is no foam and the flat lighting 35 passes through the beer bottle 31 and the illuminance is high), it is determined as "insufficient". If none of the above applies, it is determined as "unknown".

Each liquid level h in each of the detection areas R _{1 to} R _5
11 If the hits to h ₁₅ only the edge is detected, detects the top of the detection area _R 1 to R ₅ as Awamen.

Next, in step # 5, the image processing apparatus inspection processing unit 51 waits for input of detection signals from the photoelectric sensors 32a and 32b corresponding to the arrival of the beer bottle 31 flowing next.

The beer bottles having been subjected to the above-mentioned inspection of the amount of filling are:
The heterogeneous crown inspection machine 17 inspects the heterogeneous crown and sends it to the labeler 18.

In the labeler 18, a plurality of beer bottles 31 are flowed on a circular rotary, and a back label 47 is sequentially attached to the beer bottles 31 by a back label attaching machine 41 shown in FIG. As shown in FIG. 12, the laser printer 42 prints information on the label 47 such as the symbol of the manufacturing plant, the expiration date, the manufacturing month, the manufacturing date, and the time symbol.

In the label printing inspection device 60, a plurality of beer bottles 31 sequentially flow on the rotary 40, and when these beer bottles 31 reach the detection areas of the photoelectric sensors 43a and 43b, the photoelectric sensors 43a and 43b
1 is detected (the photoelectric sensor is turned on), and the detection signal is output.

The image processing apparatus inspection processing section 61 follows the inspection processing flowchart shown in FIG.
At 0, when the detection signals from the photoelectric sensors 32a and 32b are received, in step # 11, the electronic shutter of the CCD camera 44 is opened after a certain time from the detection timing of the photoelectric sensors 32a and 32b as shown in FIG.
An image signal output from the CCD camera 44 is captured.

In the image processing apparatus inspection processing section 61, in steps # 11 to # 18,
The image data acquired by the CD camera 44 is searched for information on, for example, the sign of the manufacturing plant and the expiration date printed on the back label 47, and thereafter, the position of the information including the sign of the manufacturing plant is used as a reference position for other information. Expiration date,
The production month, the production date, and the time symbol are respectively searched, and based on the degree of coincidence (score value) between the searched information and the registered data, the symbol “B” of the manufacturing factory printed on the back label 47 and the taste. Expiration date “0”, production month “year 04
Whether the month, the production date “lower H”, and the time symbol “NH” is good or bad is determined.

More specifically, the search inspection flow shown in FIG.
-Print inspection is performed according to the chart. Search means 6
2 are the same as those shown in FIG. 21 in steps # 20 and # 21.
Image data captured from the CCD camera 44
Search area E₁"B" and prize of manufacturing factory
Reference model M with “0” for the expiration date₁Find a position that matches
A search process is performed. In this search process, the reference mode
Dell M₁Between the features of the image and the features in the captured image data
Evaluations for each of these compatible features.
This evaluation result is represented by a numerical value. Numerical value of this evaluation result
Is called a score value and is represented by, for example, 0 to 100.
You. The higher this score value, the more the reference model M ₁According to
To indicate that

[0081] determination means 63 compares the score value as defined score value for the reference model M ₁ of within the search area E _1, the manufacturing plant the score value is printed at least prescribed score value back label 47 The symbol "B" and the expiration date "0" are determined to be normal, and less than that are determined to be defective.

[0082] The determination means 63 in the step # 21, the reference model M ₁ and coincides with the reference model M ₁ in the search area E ₁ moiety (the information including the manufacturing plant symbol "B" position) (The shift amounts Δx and Δy of the reference position) are obtained.

Next, the search means 62 determines in step # 22
In, a reference position the position of the "0" of the manufacturing plant of the symbol "B" expiration date, to set the search area E ₁₂ for searching the expiration date "December" from the reference position. The setting of this search area E _{1 2,} the reference model M of the shelf as a reference position that has been pre-registered date "December"
_This is performed by adding the deviation amounts Δx and Δy of the reference position to the distance from the reference position ₂ . The size of the search area E ₁₂ at this time may as small than the conventional search area E _2.

The method of setting the reference model and the search area will be specifically described with reference to the schematic diagram shown in FIG. 22. First, in the setting procedure, the capture range W is registered from the image data. At this time, the coordinates (w
x, wy) and size (swx, swy).

[0085] Next, to register the reference model _{M 1.} In this case the drawing on the top left corner of the reference model _{M 1} coordinates _(M 1x, M
_1y ) and size ( _Sm1x , _Smiy ).

[0086] Next, to register the search area _{E 1.} In this case the drawing on the top left corner of the search area _{E 1} coordinates _{(E 1x,}
E _1y ) and size (S _E1x , S _Eiy ).

Next, the reference model M ₂ and the search area E ₂
Register

[0088] In the search procedure, first, takes in the reference image data, then sets the search area E _1, searches the reference model M _1. Thereby, the detection deviation amount Δx
(= Δx ₁ ) and Δy (= Δy ₁ ) are obtained. The actual search position M ₁ ′ is M ₁ ′ = (M _1x −Δx ₁ , M _1y −Δy ₁ ).

Next, a search area E ₂ ′ is set, and the reference model M ₂ is searched.

E ₂ ′ = (E _2x −Δx ₁ , E _2y −Δy
₁ ) The actual search position M ₂ ′ is M ₂ ′ = (M _2x + Δx ₂ , M _2y + Δy ₂ ).

[0091] Then, the search means 62 performs a search process for detecting the position that matches the reference model M ₂ of the expiration date "December" in the search area E within _12. This search process performs correspondence between features in the reference model M ₂ features and capture image data, evaluated for each feature taken of this correspondence, representing the evaluation result in score value.

The search processing parameters include an X coordinate, a Y coordinate, a rotation angle, an enlargement / reduction ratio of the same shape, an X-direction enlargement / reduction ratio, and a Y-direction enlargement / reduction ratio. Search means 62
Is the X coordinate, Y coordinate, rotation angle,
The processing time is shortened using the same shape enlargement / reduction ratio.
If the evaluation range of the same shape enlargement / reduction ratio (1.0 = same) as the rotation angle is increased, the processing time becomes longer. Therefore, the rotation angle (= ± 1 degree) and the same shape enlargement / reduction ratio (0. 8-1.
Use 2). The reason why the rotation angle is necessary is that the back label 47 is slightly rotated due to the accuracy of attaching the back label 47. The reason why the same shape enlargement / reduction ratio is required is that the beer bottle 31 varies in size in the front-back direction with respect to the CCD camera 46, so that the size changes.

[0093] determination means 63, best before for comparing the score values for the reference model M ₂ of within the search area E ₁₂ and the specified score value, the score value has been printed at least prescribed score value back label 47 The term "December / Year" is determined to be normal, and less than that is determined to be defective.

Next, the search means 62 determines in step # 23
, The position of the symbol “B” of the manufacturing plant and the expiration date “0” is set as a reference position, and the manufacturing month “year 04
Setting the search area E ₁₃ for searching the month ". The setting of this search area E _13, the row by adding the shift amount [Delta] x, [Delta] y of the reference position to the distance between the reference model M ₃ of the pre-registered in that reference position and month of manufacture as "Apr year" Will be Search area E at this time
Size of ₁₃ may a small one than the conventional search area E _3.

Next, the search means 62 sets the search area E
Within ₁₃ performs a search process for detecting the position that matches the reference model M ₃ of the production month "04 May year". This search process performs correspondence between features in the feature and the captured image data of the reference model M _3, evaluated for each feature taken of this correspondence, representing the evaluation result in score value.

[0096] determination means 63, manufacturing month comparing score value for the reference model M ₃ of in the search area E ₁₃ and the specified score value, the score value has been printed at least prescribed score value back label 47 "April" is determined to be normal, and less than "April" is determined to be defective.

Next, the search means 62 determines in step # 24
, The position of the symbol “B” and the expiration date “0” of the manufacturing factory is set as a reference position, and the manufacturing date is “lower H” from this reference position.
Setting the search area E ₁₄ for searching. The setting of this search area E ₁₄ is carried out by adding the distance between the reference model M ₄ of the reference position that has been registered in advance as described above manufacturing date "under H" shift amount Δx of the reference position, the Δy . The size of the search area E ₁₄ at this time may as small than the conventional search area E _4.

Next, the search means 62 sets the search area E
The search process for detecting perform position matching the reference model M ₄ date of manufacture "under H" in the _14. In this search process,
Perform correspondence between the features in the reference model M ₄ features and capture image data, evaluated for each feature taken of this correspondence, representing the evaluation result in score value.

[0099] determination means 63 compares the score value as defined score value for the reference model M ₄ of in the search area E _14, manufacturing date score value is printed at least prescribed score value back label 47 "Lower H" is determined to be normal,
Anything less than that is determined to be defective.

Next, the search means 62 determines in step # 25
In the above, the symbol "B" of the above-mentioned manufacturing factory and the expiration date "0"
A reference position a position of the sets search area E ₁₅ for searching the time symbol "NH" from the reference position. The setting of the search area E ₁₅ is performed by adding pre-shift amount of the reference position to the distance between the reference model M ₅ of that are registered reference position and the time symbol "NH" [Delta] x, a [Delta] y. The size of the search area E ₁₅ at this time may as small than the conventional search area E _5.

[0102] Then, the search unit 62 performs search processing for detecting a position corresponding to the reference model M ₅ times symbol "NH" in the search area E _15. In this search process, performs a correlation between the feature in the feature and the captured image data of the reference model M _5, evaluated for each feature taken of this correspondence, representing the evaluation result in score value.

[0102] determination means 63 compares the score value for the reference model M ₅ of within the search area E ₁₅ and the specified score value, the time symbol score value is printed at least prescribed score value back label 47 "NH" is determined to be normal, and less than "NH" is determined to be defective.

Next, in step # 26, the judging means 63 outputs the manufacturing factory symbol “B” and the expiration date “0” printed on the back label 47, the expiration date “Dec. When it is determined that the month, the production date is “lower H”, and the time symbol “NH” is defective, a command to pay out the defective beer bottle 31 from the rotary 40 is sent to the payout unit 48.

Next, in step # 19 shown in FIG. 14, the image processing apparatus inspection processing section 61 detects the next flowing beer bottle 31, and receives the detection signals from the photoelectric sensors 43a and 43b. Wait for.

The beer bottle 31 having been subjected to the above label printing inspection is sent to the caser 9 as shown in FIG. 1, and the beer bottle into which the beer 13 has been poured is put in the P box 1 and placed in the palletizer 20. Is stored in. And it is shipped by the transport vehicle 2.

As described above, in the first embodiment, the liquid level portion of the beer injected into the beer bottle 31 is imaged to acquire the image data, and this image data is transferred to the plurality of detection areas R ₁ to R ₁ . divided into R _5, these detection areas R
₁ to R each liquid level every _{5 h} 11 _{to h 15} and the foam surface _{h 21} ~
Injection volume of beer, based on the liquid level h ₁₃ and Awamen h ₂₃ serving as them median detects h _25, since checks if foam height is within the prescribed range S, the liquid surface of the beer Even if it is not horizontal due to swinging, it is possible to perform a highly accurate inspection of the filling amount.

[0107] In particular, since shaking the liquid surface of the beer makes a determination based on the liquid level h ₁₃ and Awamen h ₂₃ serving as a median value, can detect the liquid level and Awamen highly accurate beer. That, not shaking beer liquid surface is always symmetrically, for example, sometimes the liquid level rises parsley on one side and the liquid level h ₁₃ and Awamen h ₂₃ serving as a central value in this case
Rather, the liquid level _h 11 _{to h 15,} the foam surface _h 21 to h
It is conceivable to calculate each of the ₂₅ average values, but then it is possible to be dragged to a value that rises to one side.

Therefore, the beer bottle 31 flowing to the line 30
Due to the influence of the vibration of the belt conveyor or the change in the speed of the flow, the liquid surface shakes, and even if the liquid surface is inclined, without being determined as `` insufficient '' or `` excessive '' as in the past, It can be flown to the line 30 as a good product.

Further, after the arrival of the beer bottle 31 is detected, the back label 47 attached to the beer bottle 31 is imaged and its image data is obtained. After searching for the symbol "B" and the expiration date "0", the expiration date "December December" and the production month "April 04" are set using the position of the symbol "B" and the expiration date "0" of this manufacturing plant as reference positions. Month, manufacturing date "lower H", time symbol "NH", and the searched manufacturing plant symbol "B", manufacturing year "0", expiration date "December year", manufacturing month "year" April ", production date" lower H ",
The manufacturing factory symbol “B” printed based on the degree of coincidence with the registered data of the time symbol “NH” and the manufacturing year “0”, the expiration date “December of year”, the manufacturing month “April”, the manufacturing Since it is determined whether the day “lower H” and the time symbol “NH” are good or bad, the size of each of the search areas E _{12 to} E ₁₅ may be smaller than that of the conventional search area. , The production factory symbol "B", the production year "0", the expiration date "December", the production month "April",
The time required to search for the production date “lower H” and the time symbol “NH” can be shortened.
Although it flows at a speed of 0 bottles to a maximum of 800 bottles, the printed characters of the back label 47 can be inspected at a high speed of about 300 ms to 75 ms per one of these beer bottles 31.

Therefore, before the next beer bottle 31 flowing to the rotary 40 reaches the label inspection, the back label 47 is returned.
Inspection of the print character can be completed.

(2) Next, a second embodiment of the present invention will be described with reference to the drawings. The same parts as those in FIG. 9 are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 23 is a block diagram of the label printing inspection apparatus. The image processing device inspection processing unit 61 of the label print inspection device 60 has a function of a rotation deviation correcting unit 64. The rotation deviation correcting means 64 is provided with the back label 4
7 is used as a reference position based on the image data obtained by capturing image 7 and the information of the manufacturing factory symbol “B” and the expiration date “0”. From this reference position, the expiration date “December of year” and the production month of “Year 04”
Month ", the date of manufacture" under H ", when determining the respective search area E ₁₂ ~E ₁₅ of time symbol" NH ", these reference position as the expiration date" December ", the production month" 04 May year ", the date of manufacture It has a function of adding each correction of the length in consideration of the cylindrical shape of the beer bottle 31 between each distance between “lower H” and the time symbol “NH”.

A specific correction method will be described with reference to FIG. Assume that the radius of the beer bottle 31 is R, and the characters “A” and “B” printed on the back label 47 are inspected. The letter "A" as a reference character of the reference position, a shift amount of character "A" of the image data (detected at sample image) Q ₁₀ obtained by the imaging of the registration time of capturing the image M ₁₀ and the CCD camera 44 .DELTA.A And the shift amount of the character “B” is ΔB
And Also, the registered coordinates of the character “A” are X _A , and the character “B”
The registration coordinates of the _{X B.}

[0114] The distance L between the letter "A" and the letter "B", L _{= X} B -X A _... is (3).

[0115] If you do not take into account the cylindrical shape of beer bottles 31, registered at the capture of the image M ₁₀ letter "A" is detected image Q
Letter "B '" when there is a movement in the' coordinate X _A as ₁₀ letters "A"_'coordinates of, X _B' becomes _{= X A '+ L ... (} 4).

Considering the cylindrical shape of the beer bottle 31, the central angle θ _A of the character “A” on the circumference of the beer bottle 31 is defined as θ _A = sin ⁻¹ (X _A / R) (5) The character “B” Is the central angle θ _B of the beer bottle 31 on the circumference θ _B = sin ⁻¹ (X _B / R) (6) The central angle θ _A ′ of the character “A ′” on the circumference of the beer bottle 31 is θ _A ′ = sin ⁻¹ (X _A ′ / R) (7) The difference Δθ _A between the central angles of the characters “A” and “A ′” is defined as Δθ _A = θ _A ′ −θ _A (8) 'When the coordinates of the representative by using the [Delta] [theta] _{a, X B} letter _{"B"' = R · sin (θ B} + Δθ a) ... a (9).

[0117] character distance L between the letter "A" and "B"_{'is,L' = X B '-X} A' ... is (10).

Accordingly, when the cylindrical shape of the beer bottle 31 is considered, the difference ΔL between the distance between the character “A” and the character “B” is as follows: ΔL = L′−L (11) Thus, the distance difference Δ from the coordinates of the character “A”
_'By setting the search area of the letter "B", the letter "B' coordinate X _B shifted by L becomes a" can be accurately detected.

However, the rotational deviation correcting means 64 searches the information of the symbol "B" of the manufacturing factory and the "0" of the expiration date from the image data obtained by imaging the back label 47, and uses this as a reference position. From this reference position, the expiration date “December year”, the production month “April”, the production date “Lower H”,
When determining the respective search area E ₁₂ ~E ₁₅ of time symbol "NH", "December year" and these reference positions expiration date, "04 May year" month of manufacture, date of manufacture "under H", the time symbol "NH"
The search areas E _{12 to} E ₁₅ are set by shifting each of them by a difference ΔL of each distance according to each distance from
3 expiration date "December" from these search area _E 12 _{~E 15} inside, "04 May year" month of manufacture, date of manufacture "under H",
The time code "NH" is detected.

The rotation deviation correcting means 64 is added for the following reason. That is, the label printing inspection
Since the rotation is performed on the circular rotary 40, if the flow speed of the beer bottle 31 changes on the rotary 49 and the image capturing timing of the CCD camera 44 changes, the captured image data changes.

Normally, as shown in FIG. 25A, a beer bottle (indicated by a dotted line) 31 is detected by the photoelectric sensors 43a and 43b, and then the beer bottle 3 is detected by a delay time of image capture.
1 captures an image of the CCD camera 44 having a fixed shutter speed almost in front of itself, and captures the image signal.

[0122] If the image data captured in this manner, FIG. (A) for example, time symbol "NH from the reference model M ₁ of the" 0 "symbol" B "and expiry date of the manufacturing plant as shown in the lower part when determining the search area _{E 15} of the "correctly can set search area _{E 15.}

However, if the flow speed of the beer bottle 31 flowing on the rotary 40 becomes faster than the normal flow speed (including the case where the flow speed is slower), a certain time (the photoelectric sensor 43
24B, the distance between the time when the electronic shutter of the CCD camera 44 is released and the time when the electronic shutter of the CCD camera 44 is released becomes longer, and as shown in FIG. When the electronic shutter of the CCD camera 44 is released after detecting (shown by a dotted line) 31, the shutter speed is fixed and CC
When viewed from the D camera 44, the beer bottle 31 moves to the right side as compared with the normal case, a shift corresponding to the rotation angle of the circular rotary 40 occurs, and the beer bottle 31 has a cylindrical shape.
The left and right images viewed from the center of the field of view of the CD camera 44 are reduced left and right.

The rotary 40 operates at a low speed at the start of the flow of the beer bottle 31, gradually increases the speed, and sometimes flows at a higher speed than the normal flow speed. In the rotary 40, the speed at which the beer bottle 31 flows is not always constant, and there is a high possibility that the image data captured by the CCD camera 44 is reduced to the left and right sides to be varied.

For this reason, the beer bottle 3
When 1 flows at high speed, for example, a time symbol
"NH" is the reference model M₁The distance from the
When the vehicle is moving at high speed, the reference model M₁Long distance from
It becomes. FIG. 25 (b) shows the state at high speed,
For example, the time symbol “NH” on the image data is moved to the left side on the drawing.
The reference model M₁The distance from is shortened. For this reason,
Search area E at registered coordinates_FifteenEven if you set
Cannot search for the symbol "NH" and search area E _FifteenSeat
Modify mark and search area E_Fifteen’Must be set to
You.

Therefore, by adding the rotation deviation correcting means 64 to the first embodiment, the rotary 4
At 0, drive at low speed at the start of the flow of the beer bottle 31,
The speed at which the beer bottle 31 flows in the rotary 40 is not always constant, and the image data captured by the CCD camera 44 is reduced to the left and right sides so as to gradually increase the speed and flow at a higher speed than the normal flow speed. even greater likelihood of those vary Te, accurately from the reference model M ₁ can set each search area E ₁₂ to E _15, can avoid detection errors of information printed on the back label 47.

Label printing is performed on a rotary 40 rotating at a high speed.
1 is sandwiched and fixed from above and below, but as shown in FIGS. 26 and 27, a deviation occurs in the rotation direction of the beer bottle 31, and the CCD has a cylindrical shape due to the cylindrical shape of the beer bottle 31.
The space between the characters located in the peripheral part of the beer bottle 31 on the image data acquired by the camera 44 becomes narrow. Therefore, the distance varies from the reference model M ₁ to a reference position, for example time symbol "NH", accurately becomes impossible search time symbol "NH" in the search area E ₁ within _5, may be detected error occurs is there.

Accordingly, by adding the rotation deviation correcting means 64 to the first embodiment, even if a deviation occurs in the rotation direction of the beer bottle 31 on the rotary 40 rotating at high speed, the reference position can be adjusted. exactly from the model _{M 1} can set each search area _E 12 _{~E 1 5,} can avoid detection errors of information printed on the back label 47.

As described above, in the second embodiment, the information of the manufacturing factory symbol “B” and the manufacturing year “0” is set as the reference position from the image data obtained by imaging the back label 47, From this reference position, the expiration date “year 12
Month ", the production month" 04 May year ", the date of manufacture" under H ", when determining the respective search area E ₁₂ ~E ₁₅ of time symbol" NH ", these reference position as the expiration date" December ", the production month Since the rotation deviation correcting means 64 for performing each correction of the length in consideration of the cylindrical shape of the beer bottle 31 is provided between each distance from “April”, the production date “Lower H”, and the time symbol “NH”, In addition to the effects of the first embodiment, the rotary 40 operates at a low speed at the start of the flow of the beer bottle 31, gradually increases the speed, and flows at a higher speed than the normal flow speed. On the rotating rotary 40, even if a deviation occurs in the rotation direction of the beer bottle 31, each of the search areas E _{12 to} E ₁₅ can be accurately set from the reference model M ₁ , and the information printed on the back label 47 can be set. Detection errors can be avoided.

The present invention is not limited to the above-described first and second embodiments, and can be variously modified in the implementation stage without departing from the gist of the invention.

Furthermore, the first and second embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent features. For example, even if some components are deleted from all the components shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the problem described in the column of the effect of the invention can be solved. In the case where a certain effect can be obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.

The first and second embodiments may be modified as follows. For example, in the first and second embodiments, a case has been described in which the present invention is applied to the inspection of the amount of flavor of the beer bottle 31 after the beer is injected into the beer bottle 31 and the inspection of the printed characters of the back label 47. The present invention is not limited to this, and can be applied to all the inspections of the quantity of the product in which the carbonated drinking water is poured into the bottle and the printed characters of the label.

Further, the present invention is not limited to the inspection of the amount of beer charged into the beer bottle 31, but also includes the amount of contents such as powder enclosed in the container and various contents enclosed and sealed in the container. It can also be applied to inspect the quantity of goods.

Information to be printed on the back label 47 is as follows.
Not limited to the symbol of the manufacturing factory, the manufacturing month, the manufacturing date, the expiration date, and the time symbol, other information may be printed, and the printed information may be inspected.

Although the beer bottle 31 is illuminated with visible light and the transmitted image is captured, the beer bottle 31 is not limited to visible light, and electromagnetic waves such as infrared rays are illuminated on the beer bottle 31 and the transmitted electromagnetic wave is imaged and inspected. May be performed. This allows
In addition to a light-transmitting container such as a beer bottle 31, the amount of contents sealed in a can that does not transmit visible light, such as a tea bottle, can be inspected. That is, the principle uses contrast.

[0136]

As described above in detail, according to the present invention, it is possible to provide a method and an apparatus for producing a bottled beer capable of performing a high-accuracy taste inspection even when the liquid surface is not horizontal due to shaking.

Further, according to the present invention, it is possible to provide a method and an apparatus for producing a bottled beer capable of detecting a partial lack of a character in a label printing inspection.

Further, according to the present invention, it is possible to provide a method for producing a bottled beer and an apparatus therefor capable of avoiding an error in detecting information printed on a label even if the flowing speed of the bottle changes between a high speed and a low speed.

Further, according to the present invention, it is possible to provide a method and an apparatus for producing a bottled beer which can avoid an error in detecting information printed on a label even if a deviation occurs in the direction of rotation of the bottle. .

Further, according to the present invention, it is possible to provide a method of manufacturing an enclosure capable of performing a highly accurate inspection even when the contents are not in a horizontal state.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing a manufacturing process of a bottled beer according to the present invention.

FIG. 2 is a side view of the filling amount inspection device according to the first embodiment of the present invention as viewed from the upstream side of the line.

FIG. 3 is a diagram showing a specific arrangement position in the first embodiment of the taste detection device according to the present invention.

FIG. 4 is a diagram showing a flow of beer bottles in the first embodiment of the taste detection device according to the present invention.

FIG. 5 is a schematic diagram of image data captured by a CCD camera of the filling amount inspection device according to the present invention.

FIG. 6 is a schematic view showing a detection operation of a liquid level and a foam level in the taste detection device according to the present invention.

FIG. 7 is a diagram for explaining an erroneous determination when the liquid level is tilted in the filling amount inspection device according to the present invention.

FIG. 8 is an inspection processing flowchart in the first embodiment of the taste amount inspection apparatus according to the present invention.

FIG. 9 is a configuration diagram of the label print inspection device according to the first embodiment of the present invention as viewed from above the rotary.

FIG. 10 is a diagram showing a specific arrangement position of the label print inspection device according to the first embodiment of the present invention.

FIG. 11 is a diagram showing a flow of beer bottles in the first embodiment of the label printing inspection device according to the present invention.

FIG. 12 is a diagram showing a print character configuration of a back label.

FIG. 13 is a schematic diagram showing a search area in the label print inspection device according to the present invention.

FIG. 14 is an inspection processing flowchart in the first embodiment of the label print inspection apparatus according to the present invention.

FIG. 15 is a diagram showing a measurement area in the first embodiment of the taste detection device according to the present invention.

FIG. 16 is a diagram showing a detection area in the first embodiment of the taste detection device according to the present invention.

FIG. 17 is a schematic diagram showing a liquid level detection operation in the first embodiment of the filling amount inspection device according to the present invention.

FIG. 18 is a diagram showing a liquid level and a bubble level detecting operation in each detection area in a state where the liquid level is inclined in the first embodiment of the filling amount inspection device according to the present invention.

FIG. 19 is a diagram showing an electronic shutter opening timing of the CCD camera in the first embodiment of the label print inspecting apparatus according to the present invention.

FIG. 20 is a search inspection flowchart in the first embodiment of the label print inspection device according to the present invention.

FIG. 21 is a schematic view showing a search procedure in the first embodiment of the label print inspection apparatus according to the present invention.

FIG. 22 is a schematic diagram showing a search area in the label print inspection device according to the first embodiment of the present invention.

FIG. 23 is a configuration diagram showing a second embodiment of the label print inspection apparatus according to the present invention.

FIG. 24 is a schematic diagram showing the operation of a rotational displacement correcting unit in the label print inspection device according to the second embodiment of the present invention.

FIG. 25 is a schematic diagram showing the operation of a rotational displacement correcting unit in the label print inspection device according to the second embodiment of the present invention.

FIG. 26 is a schematic diagram showing the operation of a rotational displacement correcting means in the label print inspection device according to the second embodiment of the present invention.

FIG. 27 is a schematic diagram showing the operation of a rotational displacement correcting unit in the label print inspection device according to the second embodiment of the present invention.

[Description of Signs] 18: Labeler 30: Line 31: Beer Bottle 32a, 32b: Photoelectric Sensor 33: CCD Camera with Electronic Shutter (CCD Camera) 35: Flat Lighting 36: Payout Unit 40: Rotary 41: Back Label Pasting Machine 42 : Laser printer 43a, 43b: Photoelectric sensor 44: CCD camera with electronic shutter (CCD camera) 46: Flat illumination 47: Back label 50: Reception amount inspection device 51: Image processing device inspection processing section 52: Dividing means 53: Inspection Means 60: Label print inspection device 61: Image processing device inspection processing unit 62: Search means 63: Judgment means 64: Rotational deviation correction means

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG. 14

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tetsuya Kubo 33-33, Shinisogo-cho, Isogo-ku, Yokohama-shi, Kanagawa Prefecture Inside the Toshiba Production Technology Center (72) Inventor Kiichi Hagiwara 1-1-1, Shibaura, Minato-ku, Tokyo No. F-term in Toshiba head office (Reference) 3E079 AB01 CD50 5B057 AA01 BA02 CA08 CA12 CA16 CE11 DA07 DB02 DB09 DC16 DC23 5L096 AA06 BA03 CA02 FA37 FA69 GA02 GA19

Claims (10)

[Claims] 1. A method for producing a bottled beer, comprising an inspection step of inspecting an injection amount of the beer while distributing a bottle into which a beer is injected on a production line, wherein the inspection step includes: On the other hand, irradiating the bottle with light that can pass therethrough, and capturing an image of the light that has passed through the bottle, and a region where the beer exists and a region where a layer of a foam formed from the beer exists. And the boundary between the region where the layer of the foam is present and the region where the beer and the foam are not present in the bottle are included in the plurality of discrimination regions, respectively. The relative position from the predetermined reference position of the boundary when divided into, is calculated from the image for each of the determination areas, and compared whether the median of each relative position is within a predetermined allowable range, Determining step Method for producing a bottled beer characterized. 2. The method for producing a bottled beer according to claim 1, wherein in specifying the boundary, the boundary is specified based on data obtained by performing a filtering process on at least information on shading of image data based on the image. . 3. When the liquid level of the beer is lower than a specified liquid level range, it is determined that the liquid level is insufficient, and when it is higher than the specified liquid level range, it is determined that the liquid level is excessive. The bottle beer according to claim 1, wherein if the foam height of the foam body is abnormal even if the foam height is abnormal within the normal range, the foam beer is judged to be defective as a foam height abnormality and is separated from a good product. Production method. 4. An inspection step for inspecting the indication of a cylindrical bottle to which a plurality of pieces of information on beer to be enclosed is attached while the bottle is distributed on a production line. A method for manufacturing a bottled beer, wherein the inspection step comprises: fixing the bottle so that the label faces in the same direction when passing through the same point; and transporting the bottle. Capturing the label to obtain image data; and searching for display of any one of the plurality of pieces of information from the image data, inspecting the display and displaying the one of the pieces of information. A step of specifying an area on the image data that exists; and setting the image data based on a relative positional relationship of an area where another display to be set in advance with respect to the specified area exists. Identifying a search area in the data, the search display should be in the search area from the search area, bottled beer manufacturing method characterized by comprising the step of inspecting the display, the. 5. The inspection step searches a display including at least a symbol of the manufacturing plant printed on the label, and shifts a position of the searched display including the symbol of the manufacturing plant from a registered position. Then, according to the amount of deviation, using the position of the display including the symbol of the manufacturing plant as a reference position, to find each search area of the expiration date printed on the label, the date of manufacture, time display. The method for producing a bottled beer according to claim 4, characterized in that: 6. The inspection step is to sequentially attach the label to the plurality of bottles passing on a circular production line, and then print the information on the label. When determining each search area for the expiration date, the manufacturing date, and the time information using information including a symbol as a reference position, consider the cylindrical shape of the bottle between each distance between the reference position and the information. The method for producing a bottled beer according to claim 4, wherein each correction of the length is added. 7. A bottle beer manufacturing apparatus for manufacturing bottle beer by sequentially injecting beer into a plurality of bottles continuously circulated through a manufacturing line, comprising: a sensor for detecting arrival of the bottle flowing in the manufacturing line; An imaging unit that receives an incoming signal from this sensor, irradiates the bottle with light that can be transmitted, captures an image of the light that has passed through the bottle, and obtains image data of the light, A boundary between a region where the beer is present and a region where a layer of foam generated from the beer is present, and a region where the layer of foam is present and the beer in the bottle based on the image data. The relative position of the boundary from a predetermined reference position when the image is divided into a plurality of determination regions such that the boundary with the region where the foam does not exist is included in each of the determination values. Means for calculating from the image for the separate area, comparing whether or not the median value of each relative position is within a predetermined allowable range, and judging, and for the beer flowing through the production line according to the inspection result of this means. Means for paying out defective products out of the injected bottles from the production line. 8. Production of bottled beer in which beer is sequentially injected into a plurality of cylindrical bottles continuously circulated through a production line, and a label displaying a plurality of pieces of information on the beer is attached to the surface of the bottle. In the apparatus, a conveying means for fixing and conveying the bottle, so that the label faces in the same direction when passing through the same point, the bottle flowing in the production line; and A sensor for detecting the arrival of the bottle, an imaging unit for receiving the arrival signal from the sensor, imaging the label attached to the bottle, and acquiring image data thereof, and the image acquired by the imaging unit From the data, the display of any one of the plurality of pieces of information is searched, the display is checked, and the image in which the display of any one of the pieces of information is present is present. Means for specifying an area on the data, and specifying a search area in the image data based on a relative positional relationship between the specified area and another area where another display is to be present. Means for searching a display that should be in the search area from within the search area, and inspecting the display; and conveying the defective product among the bottles distributed to the conveying means according to the inspection result. Means for paying out from the means, when the expiration date, the date of manufacture, the search area for the information of the time as the reference position using the information including the symbol of the manufacturing factory among the information, the cylindrical shape of the bottle was considered. A bottle beer manufacturing apparatus, comprising: rotation deviation correcting means for performing each correction of a length in consideration of the cylindrical shape of the bottle between each distance between the reference position and each of the pieces of information. 9. A method for manufacturing an enclosure, comprising an inspection step of inspecting an injection amount of the content while distributing a container filled with the content through a production line, wherein the inspection step includes: Irradiating the container with light that can pass through the container,
A step of capturing an image of the light transmitted through or reflected in the container, and a boundary between a region where the contents exist and a region where the contents do not exist in the container are respectively included. The relative position from the predetermined reference position of the boundary when the image is divided into a plurality of determination areas, is calculated from the image for each of the determination areas, the median of each relative position is
Comparing the predetermined relative position with a predetermined reference range to determine whether the position is within a predetermined allowable range. 10. An inspection step of inspecting the display of a cylindrical container to which a plurality of pieces of information relating to the contents to be enclosed is attached while the container is distributed on a production line. A method of manufacturing an enclosure including the step of: fixing the container so that the label faces in the same direction when passing through the same point, and transporting the container. A step of capturing the label of the container to obtain image data, and from the image data, searching for a display of any one of the plurality of pieces of information, inspecting the display, and performing the inspection of the one of the pieces of information. A step of specifying an area on the image data where a display is present; and, based on a relative positional relationship of an area where another display to be present is set in advance with respect to the specified area. A method of manufacturing an enclosure, comprising: a step of specifying a search area in image data; and a step of searching a display that should be in the search area from the search area and inspecting the display. .