JP5228459B2 - Inspection group data management system - Google Patents

Description

  The present invention relates to an inspection group data management system that inspects printed matter and records and manages the inspected data.

  Currently, the inspection of a printed matter compares an image of a printed matter taken by an imaging means such as a line sensor with a master image that serves as a quality criterion for the printed matter, and the comparison value has an error that exceeds a preset reference value. If there was, the printed matter was judged as defective, and when it was less than the reference value, it was judged as a good product.

For example, a detection unit that optically monitors a paper surface state of a continuously running printed material to detect a defect, a defective part imaging unit that captures and records the unexpected part when the detection unit detects a defect, and imaging a defective part There is a traveling printed matter inspection device that includes a display unit that reads and displays a recorded image of a copy unit and a totaling unit that totals defective data detected by the detection unit (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 5-188209

  In the printed matter inspection apparatus described in Patent Literature 1, the printed matter is imaged by an imaging unit to determine whether the printed matter is good or bad, and an image of a defective portion of the printed matter determined to be defective is recorded and managed on a recording medium. It only recorded data about printed matter judged to be defective. For this reason, even with a good determination based on the imaging means, a printed matter that is visually judged as defective is also handled as a shipped product, and unless there is a complaint from a customer, the inspection side cannot recognize a defective printed matter by visual inspection. If there is the above-mentioned complaint from the customer using the printed material inspection apparatus described in Patent Document 1, there is data regarding the printed material that has been determined to be defective and removed, but there is no data regarding the printed material shipped as a non-defective product. For this reason, it is difficult to find an appropriate improvement measure, and it has been dealt with by strictly setting inspection standards for pass / fail judgment. On the other hand, if inspection standards are tightened, defective products are generated in large quantities, resulting in high costs.

  The present invention has been made in view of the above problems, and an object thereof is to provide an inspection group data management system that manages data in inspection of printed matter.

An inspection group data management system according to the present invention detects an error by comparing an imaging unit that images a surface to be inspected of a printed material, a surface image to be inspected captured by the imaging unit, and a master image of the printed material. Inspection group identification information that identifies error detection means, error data detected by the error detection means, and error values of the error image, and that identifies a plurality of inspection group data including the error data Examination group identification information providing means for providing, inspection group data, and examination group data recording means for recording the examination group identification information of the examination group data provided by the examination group identification information providing means in association with each other, Examination group identification information input means for entering examination group identification information of the examination group to be selected, and examination that matches the examination group identification information input by the examination group identification information input means Inspection group data selection means for selecting data from a plurality of inspection group data recorded in the inspection group data recording means, pass / fail criteria setting means for setting pass / fail criteria allowed as pass / fail judgment, and the test group It is provided with pass / fail judgment means for judging the quality of the printed matter based on the error data of the inspection group data selected by the data selection means and the pass / fail criteria set by the pass / fail criteria setting means, and for recording. It is what.
Accordingly, the error image and the error value are recorded in correspondence with each other, and the quality standard is set based on the recorded error image and error value. Therefore, the data of the printed matter determined to be non-defective is also recorded.
Further, the error image and the error value are recorded in correspondence with each other, and a quality criterion can be set and determined based on the recorded error image and error value. That is, it is possible to set a determination criterion based on the contents of individual errors, instead of determining whether or not it is good based on a predetermined criterion.
Further, since the examination group and the examination group data are associated with each other by the examination group identification information, the examination group data of the examination group to be inspected can be easily selected.

  The inspection group data may be managed based on any one of the lot of the printed matter, each product group, each printing date, and each printing time zone.

  The examination group identification information providing means outputs the examination group identification information to any of a character, a barcode, a two-dimensional code, and an IC tag, and the examination group identification information input means is a character, a barcode, a two-dimensional code The inspection group identification information output to any one of the IC tags may be read.

  The inspection group data may include any one of printing medium information used for printing, ink information, printing press information, operator information for operating the printing press, temperature information, humidity information, and time information.

  The inspection group data management system may include inspection group data transmission means for transmitting the inspection group data determined by the quality determination means to a finishing machine that removes defective products.

Printed matter identification information reading means for reading individual identification information of the printed matter, comprising inspection data constituting the examination group data from the printed matter individual identification information read by the printed matter individual identification information reading means and the error data. it may be configured to become Te.

  The printed material individual identification information reading means may read characters, barcodes, and two-dimensional codes printed in a blank area of the printed products, or characters, barcodes, and two-dimensional codes printed on printed products. May be read.

  The printed matter may be printed on a roll sheet, and the printed matter individual identification information reading unit may measure the length of the roll sheet from the print start position or the print end position.

The inspection group data management system according to the present invention configured as described above can record an error image and its error value in association with each other, and can set a pass / fail criterion based on the recorded error image and error value. That is, instead of making a pass / fail determination based on a preset criterion, a determination criterion can be set as appropriate based on the content of the error.
In addition, inspection group data including a plurality of inspection data corresponding to error images and error values, and inspection groups are recorded in correspondence with each other based on the inspection group identification information. In the process of dividing the test group, the corresponding test group data can be selected by inputting the test group identification information given to the test group.
Further, since the inspection group data is recorded in the recording means, the inspection contents can be reconfirmed even after product shipment. For example, even when there is an inquiry about a printed matter after shipment from a customer, it is possible to reply based on the inspection group data.

  In addition, since inspection group data is managed based on printed lots, product groups, printing dates, printing time zones, etc., the number of non-defective products for each lot, product group, printing date, printing time zone, The number of defective products can be easily recognized. Based on these data, it is possible to analyze the cause of failure for each lot, the cause of failure for each product, the cause of failure for each printing date, the cause of failure due to the printing time zone, and the like. Therefore, these analysis results are reflected in the next and subsequent printings, and the print quality can be improved.

  Inspection group identification information is stored in characters, barcodes, two-dimensional codes, IC tags, etc., and these are included in barcodes, two-dimensional codes, IC tags, etc. Inspection data can be selected accurately and easily by reading the inspection group identification information.

  The inspection group data includes any of the information on the substrate used for printing, ink information, printing press information, operator information for operating the printing press, temperature information, humidity information, and time information. It is also possible to analyze characteristics of a printing medium such as a resin, ink characteristics, printing machine characteristics, characteristics (characteristics) for each operator, temperature characteristics, humidity characteristics, time characteristics, and the like. The print quality can be improved based on the analyzed data.

  Since the inspection group data determined to be acceptable by the quality determining means is transmitted to the finishing machine, it is possible to reliably classify the non-defective product and the defective product.

  Since the printed product individual identification information reading means for reading the individual identification information of the printed material is included and the printed product individual identification information is included in the inspection data, the defective product is reliably detected based on the printed product individual identification information in the process of removing the defective product. Can be removed.

  Since printed product individual identification information such as characters, barcodes, and two-dimensional codes printed in a blank area that is not a printed product or a printed product is read, it is possible to identify a printed product that has been determined to be defective.

  The printed matter is printed on a roll sheet, and the printed matter identification information reading unit measures the length from the print start position or the print end position of the roll sheet. The position can be specified, and defective product removal work can be performed efficiently.

As shown in FIG. 1, the inspection group data management system 1 according to the present invention takes an image of a printed matter printed by a printing machine 2 with an imaging means 4, and manages a plurality of error data inspected based on the captured data. To do. The computer of the inspection group data management system 1 records error data in association with inspection group data for each lot (printing group) 3. At this time, identification information 5 for associating the print lot 3 with the inspection group data 17 (see FIG. 4) is assigned and managed.
Then, as shown in FIG. 2, the identification information 5 of the print lot 3 to be inspected is read from the inspection group data 17 (see FIG. 4) already recorded using the terminal T. After matching inspection group data 17 is selected and quality is judged, this data is transmitted to the finishing machine 16, and the printed matter is divided into good products and defective products.

The inspection group data management system 1 shown in FIG. 1 manages the inspection data of the printed matter printed by the three printers 2,..., 2, but the error of the printed matter printed by the single printer 2. Data may be managed.
In FIG. 2, the inspection group data 17 corresponding to the print lot to be inspected is selected using five terminals T,..., T, quality determination is performed, and the finishing machine 16 connected to each terminal T is selected. However, the inspection group data 17 may be transmitted from a single terminal T to a plurality of finishing machines 16,.

  In the following description, the printing medium to be printed by the printing machine 2 will be described by taking paper such as sheet or roll paper as an example. However, the printing material is not limited to paper. It may be a printed material such as a sheet coated with a resin or paint, or a metal sheet.

As shown in FIG. 3, the examination group data management system 1 includes an imaging means 4, a printed matter identification information reading means 6, a master image recording means 7, an error detection means 8, an examination group identification information input means 9, and a pass / fail criterion setting means. 10, an examination group identification information adding unit 11, an examination group data recording unit 12, an examination group data selection unit 13, a quality determination unit 14, and an examination group data transmission unit 15.
Note that each means of the examination group data management system 1 shown in FIG. 3 is not only a means realized by a computer, but also a device provided in the printing press 2 and a means and device provided in the terminal T are linked. And realized.

The imaging means 4 is an imaging camera such as a single or a plurality of CCD line sensors, which images the inspection surface of the printed matter. The imaging unit 4 may image only one side of the printed material, but may also image both sides by providing imaging units 4 and 4 on the front side and the back side of the printed material, respectively.
In the case of so-called in-line inspection, the imaging means 4 is provided on the printing line of the printing machine 2, and in the case of off-line inspection, it is provided on the line of the inspection apparatus.

The printed material individual identification information reading means 6 reads the individual identification information of the printed material. For example, as shown in FIGS. 5A and 5B, the unique identification numbers 26 and 34 printed on the sheets 25 and 33 are read.
Details of the individual identification information of the printed matter will be described later.

  The master image recording means 7 is a means for recording data of a master image that serves as a criterion for determining the quality of printed matter. When there is only one surface to be inspected, a master image of the surface to be inspected is recorded, and when the surface to be inspected is double-sided, a master image of both sides is recorded. The master image recording means 7 is recorded in a memory or the like having a high data reading speed.

The error detection means 8 compares the surface image to be inspected by the imaging means 4 with the master image recorded in the master image recording means 7 to detect an error, and an error including the detected error region Create image data. Further, the error value is calculated based on the size of the error region, the shading (brightness / darkness), and the like. In addition, when comparing a to-be-inspected image and a master image, after performing correction processing, such as position correction, it compares for every pixel or every predetermined area.
The error in the present application means that the master image and the surface image to be inspected are different from each other by comparison, and does not determine whether the printed product is a non-defective product or a defective product. Therefore, there is a non-defective product with no error and a non-defective product with error. There are also defective products with errors.
The error image data 22 detected by the error detection means 8 is recorded as error data 32 in association with the error value 23 of the error image.

The test group identification information providing unit 11 provides test group identification information 18 for identifying the test group data 17 including the plurality of error data 32. When the test group data 17 is recorded in the test group data recording unit 12, the test group identification information providing unit 11 creates the test group identification information 18 and includes the test group identification information 18 in the test group data 17. Record.
The inspection group identification information adding means 11 outputs the barcode, the two-dimensional code, and the character in which the inspection group identification information 18 is stored on paper (such as a sticker) or the inspection group identification information 18 on the IC tag. And remember.

As shown in FIG. 4, the inspection group data recording unit 12 records inspection group data 17 including the inspection group identification information 18, print information 19, and a plurality of inspection data 20 on a recording medium.
The inspection data 20 includes error data 32 detected by the error detection unit 8 and printed material individual identification information 21 for specifying a printed material from which the error is detected.
The error data 32 includes error image data 22 detected by the error detection unit 8, an error value 23 of the error image, and a pass / fail result 24 determined by the pass / fail determination unit 14.
Instead of the printed material identification information 21 included in the inspection data 20, the serial number from the start of inspection of the lot may be included in the inspection data 20 as information for identifying each printed material. Further, both the printed material individual identification information 21 and the serial number may be recorded.

  The inspection group identification information input means 9 reads inspection group identification information from data input from an input unit (not shown) such as a bar code reader, a two-dimensional code reader, or an IC tag reader. When characters such as a management number are assigned to the examination group 3, the management number may be input by operating the keyboard.

  The examination group data selection means 13 is an examination that matches the examination group identification information 18 input to the examination group identification information input means 9 from the examination group data 17 recorded in the examination group data recording means 12. Group data 17 is selected.

The pass / fail criterion setting means 10 sets a reference value for determining pass / fail based on the error value 23. As this setting criterion, a pass / fail criterion may be set in advance, or the reference value may be input and set for each examination group data 17.
The image processing apparatus further includes display means (not shown) for displaying error data such as the error image on a display unit such as a display, displaying the error image on the display unit, and setting pass / fail for each error image (inspection data). Also good.

  The pass / fail judgment means 14 judges pass / fail of the printed matter based on the error data 32 of the test group data 17 selected by the test group data selection means 13 and the pass / fail criteria set by the pass / fail criterion setting means 10. The quality result is recorded in the error data 32.

  The inspection group data transmission unit 15 transmits the inspection group data 17 determined by the quality determination unit 14 to the finishing machine 16 that removes defective products.

Based on the inspection group data 17 transmitted from the inspection group data transmission means 15, the finishing machine 16 classifies the printed matter judged as defective and the printed matter judged good. When the finishing machine 16 specifies a printed material that has been determined to be defective based on the printed material identification information 21, the finishing machine 16 also includes the printed material identification information reading unit 6. When the printed matter individual identification information 21 is a character, bar code, or two-dimensional code, the printed matter individual identification information reading means 6 specifies the printed matter individual identification information 21 based on data read by a reading device that reads them. In addition, when the printed matter identification information 21 is stored in the IC tag, the printed matter identification information reading unit 6 specifies the printed matter identification information 21 based on the data read by the IC tag reader.
When the printed matter does not have the printed matter identification information 21, the printed matter that is determined to be defective is detected based on information such as the number of sheets (serial number) from the start of the inspection of the inspection group.

Next, the individual identification information of the printed matter will be described based on FIGS. 5 (a) and 5 (b).
As shown in FIG. 5A, when nine securities A1 to A9 are printed on the sheet 25, the identification number 26 given to the securities A is a unique number. By identifying the identification number, the sheet A on which the securities A and the securities A1 to A9 are printed can be specified. That is, the identification number 26 of the securities A may be the individual identification information of the securities A, so that the individual identification information of the securities A is “AB 123456” and the individual identification information of the securities A2 is “CD 123456”. As the individual identification information of the securities A1 to A9 printed on the sheet 25, the identification number 26 “AB 123456” of the certificate A1 may be used as the individual identification information.
Further, as shown in FIG. 5B, when printing the packaging box structure B on the sheet 33, the identification number is not printed on the packaging box structure B, so the packaging box structure B is punched out. A different identification number 34 may be printed for each sheet in an area that is not used as a product later (hereinafter referred to as a blank area) so that the sheet (printed material) 33 can be identified. In the case of FIG.5 (b), the identification information of packaging box structure B1, B2 is "A1000A1". In FIG. 5B, the identification number 34 is printed at the lower right of the printed material 33. However, the present invention is not limited to this, and it may be printed in other places as long as it is a blank area. It may be printed in a margin area near the center. In addition, in FIG.5 (b), although the packaging box structure B is mentioned as an example and demonstrated, it is not limited to the packaging box structure B, It is the same also with other printing.
In FIGS. 5A and 5B, the individual identification information of the printed matter printed on the sheets 25 and 33 is used. However, even in the case of roll paper, the margin area of the printed roll paper is used. The identification number may be used as individual identification information. Further, in the case of roll paper, the length from the print start position and print end position set for the roll paper may be used as the individual identification information. That is, if the length from the print start position can be specified, the position of the printed matter on the roll paper can be specified, and therefore the printed matter from which the error is detected can be specified. When the detected error is determined to be defective, the finisher 16 stops the roll paper at the position of the printed matter determined to be defective based on the length from the print start position or the print end position, and The removal operation can be performed quickly.
In the above description, the identification numbers 26 and 34 are used as the individual identification information of the printed matter. However, unique data may be stored in the barcode or the two-dimensional code, and the barcode or the two-dimensional code may be used as the individual identification information. However, unique data may be recorded on the IC tag. When the printed matter identification information is a barcode, a two-dimensional code, or an IC tag, the printed matter identification information reading means 6 analyzes a device such as a barcode reader, a two-dimensional code reader, or an IC tag reader, or the read data. It consists of an analysis unit.

Next, the examination group data 17 recorded in the examination group data recording means 12 will be described with reference to FIG.
In the examination group data recording means 12, a plurality of examination group data 17, ..., 17 are recorded.
The inspection group data 17 includes inspection group identification information 18, print information 19, and a plurality of inspection data 20,.
The inspection data 20 is composed of printed matter identification information 21 and error data 32.
Further, the error data 32 includes error image data 22, an error value 23, and a pass / fail result 24.

The inspection group identification information 18 is data for identifying the inspection group 3, and for example, different identification information is set for each printing lot, each product group, each printing date, and each printing time zone. Here, the printing time zone indicates a predetermined time interval such as 9:00 to 12:00, 12: 0 to 15:00, or the like.
The examination group data 17 and the examination group 3 corresponding to the examination group data 17 are given the same examination group identification information 18, and examination group identification information included in the two-dimensional code 5 provided in the examination group 3. By reading 18, the corresponding examination group data 17 can be selected from the examination group data recording means 12.

The print information 19 includes information on paper, ink, and printing press used for printing, identification information of a person in charge of printing, temperature information, humidity information, time information, and the like. By including such information in the inspection group data 17, it is possible to analyze printing paper, ink, printing machine, worker characteristics, temperature, humidity, time specification, and the like based on a plurality of inspection data 20. .
For example, by analyzing a plurality of inspection data 20 for each printing machine, it is possible to guide the generation pattern and frequency of defective printing of the printing machine. Similarly, it is possible to analyze ink characteristics, compatibility between the ink and the printing machine, characteristics of the operator, changes in the printing machine characteristics over time, and the like.
When temperature information and humidity information output from a thermometer (not shown) or a hygrometer (not shown) are included in the print information 19, characteristics of each printing press due to changes in temperature and humidity, and defective printing The occurrence rate can also be analyzed.
Further, when temperature information, humidity information, paper information, and ink information are included in the printing information 19, various analyzes such as temperature, humidity, ink characteristics, and the like for each paper can be performed.
The temperature information is a temperature inside the printing press 2 or a temperature outside the printing press 2. Further, the maximum temperature, the minimum temperature, the average temperature, etc. during printing of the inspection group 3 inside or outside the printing machine 2 are the temperature information.
The humidity information is the humidity inside the printing press 2 or the humidity outside the printing press 2. Furthermore, the maximum humidity, the minimum humidity, the average humidity, etc. during printing of the inspection group 3 inside or outside the printing machine 2 are the humidity information.

The inspection data 20 is data including printed matter identification information 21 and error data 32 read by the printed matter identification information reading means 6.
The printed matter identification information 21 included in the inspection data 20 is information obtained by reading a unique management number, barcode, or two-dimensional code printed on the printed matter, or an IC tag is provided on the printing paper. Sometimes it is unique identification information stored in the IC tag. As described above, when the printed material does not include the printed material individual identification information, the number of printed materials from the start of the inspection may be included in the inspection data.
As described above, when the printed material is printed on roll paper, the length from the print start position or the print end position may be used as the printed material individual identification information. Further, when the identification numbers 26 and 34 (see FIG. 5) are printed on the roll paper even when printing on the roll paper, the identification number 21 is printed in the same manner as on the sheet. It is good.

The error data 32 included in the inspection data 20 is data including the error image data 22 detected by the error detection unit 8, the error value 23, and the pass / fail result 24 determined by the pass / fail determination unit 14.
As shown in FIG. 6, the error image data 22 is an image 28 (28a,...) Of a region where an error from the master image is detected. As the error image data 22, not only an image of a portion where an error is detected but also an error image obtained by using an image of a predetermined area including a portion where an error is detected as shown in FIG. It becomes easy to visually recognize the detected area.
The error value 23 is obtained by quantifying the error based on the size of the error area, shading (brightness or darkness), and the like.
The pass / fail result 24 is a result of pass / fail determination by the pass / fail determination means 14.
Furthermore, the error data 32 may include position information (X coordinate and Y coordinate of the surface image to be inspected) where an error from the master image is detected. Thereby, even when the error portion is visually inspected, the error portion can be easily found from a wide area of the paper 25. Further, it is possible to analyze the position information where the error is detected, and detect a defective plate or a defective printing press.

  The inspection data 20 shown in FIG. 4 is created as one inspection data when an error is detected by the error detection means 8. That is, inspection data is created when an error between the master image and the inspection surface image is detected. Therefore, when a plurality of errors are detected in one sheet of paper 25 shown in FIG. 5, inspection data 20 having the same printed material individual identification information 21 and different error image data 22 is created.

  As shown in FIG. 4, the examination group 3 and the examination group data 17 have a one-to-one correspondence relationship based on the examination group identification information 18 and the two-dimensional code 5. That is, the corresponding examination group data 17 can be selected by reading the two-dimensional code 5 of the examination group 3. Then, based on the inspection data 20 of the inspection group data 17, it is possible to identify a defective printed material and to check the content of the defect.

Next, another embodiment of the test group data 17 recorded in the test group data recording means 12 will be described with reference to FIG.
In the examination group data recording means 12 shown in FIG. 9, a plurality of examination group data 17,..., 17 are recorded as in FIG. In addition, the inspection group data 17 includes inspection group identification information 18, print information 19, and a plurality of inspection data 20,.
The inspection data 20 shown in FIG. 9 includes one piece of printed matter identification information 21 and single or plural error data 20 (,..., 20). In the inspection data 20 shown in FIG. 4 described above, one piece of inspection data 20 is configured for one piece of printed matter identification information 21.
For example, in the inspection of the sheet 33 shown in FIG. 5B, when three errors are detected for one sheet, the inspection group data 17 shown in FIG. "Inspection number 34" constitutes one inspection data 20 from the printed matter individual identification information 21 and the three error data 32, 32, 32. On the other hand, in the inspection group data 17 shown in FIG. 4, one piece of inspection data 20 is composed of one piece of printed matter identification information 21 and one piece of error data 32, and 2 pieces corresponding to the remaining two pieces of error data. One inspection data is constructed.
That is, the inspection data 20 shown in FIG. 9 constitutes one inspection data 20 when the printed matter individual identification information 21 of the plurality of error data 32,. On the other hand, the inspection data 20 shown in FIG. 4 constitutes the inspection data 20 for each error data even if the printed matter individual identification information 21 is the same.
The inspection group identification information 18, the print information 19, the printed material individual identification information 21, the error data 32, the error image data 22, the error value 23, and the pass / fail result 24 have already been described with reference to FIG. The description here is omitted.
The data and data structure recorded in the examination group data recording means 12 have been described with reference to FIGS. 4 and 9, but are not limited thereto.

  Next, the inspection group data management system 1 will be described based on the flowchart of the printed matter inspection process shown in FIG. 7 and FIGS.

First, an input unit such as a keyboard is operated to input print information 19 including printed paper information, ink information, printing press information, identification information of a worker, temperature information, humidity information, and the like (S1). Along with the input of this print information, the master image data is stored in the master image recording means 7, or the master image data previously recorded on the recording medium is selected.
The print information may be input from an input unit such as a keyboard, but may be input by receiving data transmitted from the printing press (print control apparatus) 2. In particular, when a printed material is imaged in-line, the printed material immediately after printing is imaged, so that data set in the printing machine 2 can be used as the print information 19.

  Then, the securities A of the printing group 3 printed by the printing machine 2 is imaged by the imaging means (S2). The sheets 25,..., 25 of the photographed securities A are sequentially stacked on the paper discharge unit. For example, when one lot is formed with 1000 sheets 5, 1000 sheets 5 are imaged and stacked on the paper discharge unit.

  When the surface to be inspected of the security A is imaged, the captured image of the security A is compared with the master image to determine whether there is an error (S3). If there is an error, the process proceeds to step 4 (S4), and if there is no error, the process proceeds to step 8 (S8).

If there is an error with the master image in the captured image, error image data 22 (28) including an error part is created (S4), and an error value 23 is determined based on the size and density (light / dark) of the area of the error part. Is calculated (S5).
Further, an image of an area where the identification number 26 is printed is extracted from the captured image, and the identification number 26 is read using an OCR (Optical Character Reader) and converted into character data (S6). In addition, when extracting the area | region where the identification number 26 was printed from the imaged image, the data of the area | region where the identification number 26 is printed are recorded previously, and the image of the said area | region is extracted.

  The inspection data 20 including the error image data 22, the error value 23, and the printed matter identification information 21 created in steps 4 to 6 (S4 to S6) is recorded (S7). At this time, when a plurality of error areas are detected for one sheet of paper 25, the inspection data 20 is created and recorded by the number of detected error areas.

  Then, it is determined whether or not the inspection has been completed with respect to the total number of sheets 25 (printed material) to be inspected. If the inspection has not been completed, the process proceeds to step 2 (S2) and steps 3 to 7 ( The processing of S3 to S7) is repeated, and when the inspection is completed, the process proceeds to step 9 (S9) (S8).

Then, inspection group identification information 18 for identifying the inspection group 3 (printed material group) to be inspected is given (S9). Further, the assigned examination group identification information 18 is included in the examination group data 17, and the examination group data 17 is recorded in the examination group data recording means 12 (S10).
In addition, the two-dimensional code 5 including the examination group identification information 18 given in step 9 (S9) is output (S11), and the worker in charge attaches the outputted two-dimensional code 5 to the corresponding examination group 3 ( S12).
By inspecting as described above, the inspection group 3 (printing group) as a printed matter and the inspection data 20,..., 20 can be recorded in association with the inspection group 3.

  Next, based on the flowchart of the quality determination process for printed matter shown in FIG. 8 and FIGS. 2 to 6, the data recorded in the inspection group data recording means 12 of the inspection group data management system 1 by operating the terminal T is described. A case will be described in which the inspection group data 17 corresponding to the print group 3 to be inspected is selected, and the quality of the printed matter is determined.

First, the inspection group identification information input means 9 reads the two-dimensional code 5 attached to the inspection group 3 classified by the finishing machine 16, and acquires the inspection group identification information 18 included in the two-dimensional code 5 (S21). ).
The examination group data selection means 13 selects examination group data 17 that matches the acquired examination group identification information 18 (S22).

Then, a pass / fail criterion allowed as a pass / fail judgment is input and set (S23).
In step 23 (S23), the same pass / fail criteria (first need criteria) are set for the selected examination group 3. The first necessity criterion is included in the inspection group data 17 when printing information is input in step 1 (S1) of FIG. 7, and the first necessity criterion included in the inspection group data 17 is read out. It may be set.
As the pass / fail criterion, the same pass / fail criterion may be set for all areas of the securities A, or the area of the securities A may be divided into a plurality of areas, and the pass / fail criteria level may be set for each area.
For example, when printing with high accuracy is required, it is possible to set a high-level pass / fail criterion for the entire area, and to detect a lightly defective portion for the entire area. On the other hand, in the case of packaging boxes for confectionery, etc., the level of the quality standard on the surface on which the product name is printed is increased, and the level of the quality standard for areas that are glued when making a box and difficult to see from the outside The printed material certified as a non-defective product is not judged as a defective product.

  When the pass / fail criterion is set, pass / fail is determined by the pass / fail determination means 14, and the determination result is recorded as pass / fail result 24 (S24). Then, it is determined whether or not the determination of all the inspection data has been completed. If the quality determination for all the inspection data has been performed, the process proceeds to step 26 (S26), and if the quality determination for all the inspection data has not been performed. The process proceeds to step 24 (S24) (S25).

After that, as shown in FIG. 6, the error image is displayed on a display unit such as a display so that the operator can visually recognize the error content (S26).
On the error image screen 27 shown in FIG. 6A, four error images 28a, 28b, 28c, and 28d are displayed. In the error image 28, error portions 29 (29a, 29b, 29c, 29d) are displayed. In the upper left of each error image 28, the number of sheets (serial number) from the start of the inspection where the error is detected is displayed.
On the error image enlargement display screen 31 in FIG. 6B, the error image 28a detected on the 31st sheet is enlarged and displayed.
That is, the operator can set pass / fail criteria while checking the error image 28 shown in FIGS. 6 (a) and 6 (b).
As the error image to be displayed on the display unit, only the error image determined to be non-defective in step 24 (S24) may be displayed, or only the error image determined to be defective may be displayed. An error image may be displayed.

Based on the error image displayed on the display unit, the operator inputs a second pass / fail criterion (S27), makes a pass / fail determination based on the second pass / fail criterion (S28), and uses the determination result as the inspection data 20. Is recorded in the pass / fail result 24 (S29).
That is, after the pass / fail judgment is made based on the first pass / fail criterion, a new pass / fail criterion can be set while checking the error image.
For example, in the case of an inspection with a high inspection level, an error image determined as a non-defective product can be displayed, and the quality can be determined again by visual inspection. When an error is conspicuous, it can be set as a defective product.
On the other hand, if the inspection level is not high, such as a packaging box, an error image determined to be defective is displayed, and the error point is conspicuous by human vision among those mechanically determined to be defective. A non-defective product can be set as a non-defective product, thereby preventing useless defective products from occurring.
Therefore, it is possible to make an appropriate pass / fail determination corresponding to the inspection object.

  Based on the second pass / fail criteria in step 28 (S28), pass / fail judgment may be performed for all error data, pass / fail judgment may be performed again for error data that matches the conditions specified by the operator, The pass / fail judgment may be performed again on the error data designated by the person.

  When the pass / fail result 24 is recorded in step 29 (S29), the inspection group data 17 is transmitted to the finishing machine 16 (S30), and the finishing machine 16 outputs the corresponding printed matter based on the transmitted inspection group data 17. Classify into good and defective products.

As described above, the two-dimensional code 5 in which the inspection group identification information is recorded for each lot of the printed matter is attached, and the inspection group identification information is included in the inspection data group of the printed matter of the lot. Inspection data can be selected simply by reading the two-dimensional code 5 affixed to the printed material to be sorted.
In addition, since error image data is included in the inspection data, it is possible to make a pass / fail judgment while checking the error state. Furthermore, the inspection data can be recorded and stored even after the sorting operation in the finishing machine 16 is completed, so that the inspection contents can be confirmed even after the printed matter is shipped.
In addition, since the inspection group data 17 is managed for each printing lot, the number of non-defective products and defective products for each lot can be easily confirmed.

Furthermore, since the inspection group data 17 for which the pass / fail judgment has been made is transmitted to the finishing machine 16, the finishing machine 16 can classify the product into a non-defective product and a defective product. In particular, since the individual identification information 21 of the printed matter is read and the error data 32 of the printed matter is associated with the printed matter individual identification information 21, the printed matter individual identification information reading means 6 provided in the finishing machine 16 is used. It is possible to read the identification information 21 and specify a printed matter whose pass / fail result 24 is determined to be defective.
When the printed material is a sheet, the printed material determined to be defective can be surely removed, and the printed material determined to be defective is not mixed into the printed material determined to be good.
Further, when the printed material is roll paper, the position of the printed material determined to be defective based on the information on the length from the print start position and the printing end position is surely known. The roll paper can be stopped, and a defective product can be quickly removed by an operator.

It is explanatory drawing of the test process of a test group data management system. It is explanatory drawing of the quality determination process of a test group data management system. It is a block diagram of a test group data management system. It is explanatory drawing about test group data. (A) is explanatory drawing of the security printed in multiple sides on the sheet, (b) is explanatory drawing of the printed matter in which the identification number is printed in the blank area of the sheet. It is the screen figure which displayed the error image. It is a flowchart of the inspection process of an inspection group data management system. It is a flowchart of the quality determination process of a test group data management system. It is explanatory drawing about the other Example of test | inspection group data.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inspection group data management system 2 Printing machine 3 Inspection group, printing lot 4 Imaging means 5 Two-dimensional code, identification information 6 Printed object identification information reading means 7 Master image recording means 8 Error detection means 9 Inspection group identification information input means 10 Pass / fail Reference setting means 11 Inspection group identification information giving means 12 Inspection group data recording means 13 Inspection group data selection means 14 Pass / fail judgment means 15 Inspection group data transmission means 16 Finishing machine 17 Inspection group data 18 Inspection group identification information 19 Print information 20 Inspection data 21 Error Image Data 22 Error Value 23 Printed Product Individual Identification Information 24 Pass / Fail Result 25 Sheet 26 Identification Number 27 Error Image Screen 28 Error Image 29 Error Part 30 Error Detection Number 31 Error Image Enlargement Display Screen 32 Error Data 33 Sheet 34 Identification Number A Securities B Packaging box structure T Terminal

Claims (8)

Imaging means for imaging a surface to be inspected of printed matter;
An error detection means for detecting an error by comparing a surface image to be inspected captured by the imaging means with a master image of the printed matter;
A test group that includes error data configured by associating the error image detected by the error detection means with the error value of the error image, and provides test group identification information for identifying test group data including the plurality of error data Identification information providing means;
Inspection group data recording means for recording the inspection group data in association with the inspection group identification information of the inspection group data given by the examination group identification information giving means,
Examination group identification information input means for inputting examination group identification information of the examination group to be selected;
Examination group data selection means for selecting examination group data that matches examination group identification information input by the examination group identification information input means from among a plurality of examination group data recorded in the examination group data recording means;
Pass / fail criteria setting means for setting pass / fail criteria allowed as pass / fail judgment;
A pass / fail determination unit that determines and records the quality of the printed material based on each error data of the test group data selected by the test group data selection unit and the pass / fail criterion set by the pass / fail criterion setting unit; Inspection group data management system characterized by this.   The inspection group data management system according to claim 1, wherein the inspection group data is managed based on any one of the lots of the printed matter, each product group, each printing date, and each printing time zone. The inspection group identification information providing means outputs the inspection group identification information to any one of a character, a barcode, a two-dimensional code, and an IC tag,
The examination group data management system according to claim 1 or 2, wherein the examination group identification information input means reads examination group identification information output to any one of a character, a barcode, a two-dimensional code, and an IC tag.   The inspection group data includes any one of printing object information used for printing, ink information, printing press information, operator information for operating the printing press, temperature information, humidity information, and time information. The examination group data management system described in any one.   The inspection group data management system according to any one of claims 1 to 4, further comprising inspection group data transmission means for transmitting the inspection group data determined by the quality determination means to a finishing machine that removes defective products. A printed matter individual identification information reading means for reading the individual identification information of the printed matter;
The examination group data management according to any one of claims 1 to 5, comprising examination data constituting the examination group data from the printed matter identification information read by the printed matter identification information reading means and the error data. system.   The printed matter identification information reading means reads characters, barcodes, and two-dimensional codes printed in a blank area of the printed product, or reads characters, barcodes, and two-dimensional codes printed on the printed product. Item 6. The examination group data management system according to item 6. The printed matter is printed on a roll sheet,
The inspection group data management system according to claim 6, wherein the printed material individual identification information reading unit measures a length of the roll sheet from a printing start position or a printing end position.

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