JP4620208B2 - Defect content editing apparatus, defect sampling work support apparatus and method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the field of printing technology. In particular, the present invention relates to a technique for clearly indicating a defective position and the like when a printed material is a wound body and facilitating a defective sampling operation.
[0002]
[Prior art]
In a printing machine having an inline folding unit, a defective printed matter (signature) can be extracted immediately after printing. However, in a printing machine that obtains a printed matter winding body from a paper winding body, the defective printed matter is removed immediately after printing. It cannot be extracted. For this reason, a label is attached to the defective position as a mark. The label is affixed so as to protrude from the left and right ends of the printed paper (web) so that the defective position can be recognized also on the winding body.
[0003]
[Problems to be solved by the invention]
Using the label as a mark, an operation for removing a defect from the printed matter winding body is performed in a later step. In order to accurately extract a defect, it is necessary to determine what kind of defect it is and to understand the range of the defect before and after the label. However, since the information for specifying the defective position is only the label, the defective position in the winding body can be known, but the defective position in the printed pattern cannot be known. For this reason, a lot of time is wasted in order to find defects present in the pattern of the printed surface unrolled to the label position. In addition, defects detected as a result of higher performance of the printed matter inspection apparatus have become finer, making it increasingly difficult to find defects.
[0004]
The present invention has been made to solve the above problems. The purpose is to provide a defect content editing device for combining a plurality of defect contents such as defect positions in the lengthwise direction of a printed product winding body on a print image for one round of a plate cylinder and editing the defect image. There is to do. In addition, a plurality of defect contents such as a defect position in the lengthwise direction in the printed matter winding body are synthesized on a print image for one round of the plate cylinder, edited and clearly indicated on the defect edit image, thereby supporting the work in the defect sampling process. An object of the present invention is to provide a defective sampling work support apparatus and method. As a result, the work time in defective sampling work or the like is shortened, and the work load is reduced.
[0005]
[Means for Solving the Problems]
The above problems are solved by the present invention described below. That is, a plurality defect content editing apparatus according to claim 1 of the present invention, including a defect position in the length direction of the winding body of a web printed material, the defective position on the plate cylinder one round of the printed image, and a defect shadows The defect content is synthesized on a print image for one round of the plate cylinder and edited to generate a defective edit image. According to the present invention, a plurality of defect contents including a defect position in the lengthwise direction on the winding body, a defect position on the printed image for one round of the plate cylinder, and a defective shadow are displayed on the printed image for one round of the plate cylinder. There is provided a defect content editing device for combining and editing and clearly indicating a defect-edited image.
According to a second aspect of the present invention, there is provided a defect content editing apparatus comprising: a printed matter inspection unit that inspects a web printed matter based on a captured image and outputs inspection data; and a web printed matter winding body based on the inspection data. Multiple defect contents including the defect position in the length direction, the defect position on the printed image for one round of the plate cylinder, and the defective shadow are combined and edited on the printed image for one round of the plate cylinder to generate a defective edited image Defective content editing means. According to the present invention, the printed matter is inspected based on the captured image by the printed matter inspecting unit and the inspection data is output, and the defect content editing unit is based on the inspection data to determine the defect position in the lengthwise direction on the wound body of the web printed matter. A plurality of defect contents including a defect position on the printed image for one round of the plate cylinder and a defective shadow are combined and edited on the printed image for one round of the plate cylinder to generate a defective edited image. Therefore, a plurality of defect contents including the defect position in the length direction on the winder, the defect position on the printed image for one round of the plate cylinder, and the defective shadow are combined and edited on the printed image for one round of the plate cylinder. Thus, there is provided a defect sampling work support device that clearly shows the defect editing image and supports the work in the defect sampling process.
According to a third aspect of the present invention, there is provided a defective sampling work support method in a printed matter inspection process in which a printed matter is inspected based on a captured image and inspection data is output, and in the winding body of the web printed matter based on the inspection data. Multiple defect contents including the defect position in the length direction, the defect position on the printed image for one round of the plate cylinder, and the defective shadow are combined and edited on the printed image for one round of the plate cylinder to generate a defective edited image A defective content editing process, a printing process for printing out the defective edited image on a sheet to obtain a defective edited image print, and a defective edited image print attaching process for attaching the defective edited image print to the winding body. It is a thing. According to the present invention, the web printed matter is inspected based on the captured image in the printed matter inspection process and the inspection data is output, and the defect position in the length direction in the wound body of the web printed matter is based on the inspection data in the defect content editing process. the plate and the defect position on the cylinder one round of the printed image, a plurality of the defect content is edited by combining on the plate cylinder one round of the printed image defect edited image including the defect shadows are generated, bad edit the print process The image is printed out on a sheet to obtain a defective edited image print, and the defective edited image print is attached to the winding body in the process of attaching the defective edited image. Therefore, a plurality of defect contents including the defect position in the length direction on the winder, the defect position on the printed image for one round of the plate cylinder, and the defective shadow are combined and edited on the printed image for one round of the plate cylinder. Thus, there is provided a defective sampling work support method that clearly prints out a defective edited image on a sheet and attaches it to a winder to clearly support the work in the defective sampling process.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described with reference to embodiments. FIG. 1 is an explanatory diagram relating to data processing in the defective sampling work support device of the present invention. In FIG. 1, 1 is a printed matter inspection apparatus, 2 is a defective content editing apparatus, and 3 is a defective edited image print.
The printed matter inspection apparatus 1 includes an imaging unit, a synchronization control unit, a defect detection unit, an inspection data output unit, and the like. The imaging unit images a printed web downstream of the final printing unit in the printing press and generates a captured image. This imaging is performed in synchronization with the rotation of the plate cylinder of the printing press, and a captured image corresponding to one unit picture (pattern for one round of the cylinder) is obtained.
[0010]
The synchronization control unit performs synchronization control in the inspection apparatus 1 such as synchronization of imaging and synchronization of reading a captured image into the defect detection unit. Therefore, the synchronization control unit inputs a signal from a rotation detector (for example, a rotary encoder) that detects the rotation of the plate cylinder, the rotation of the line shaft, and the like, and outputs a signal for synchronizing (synchronization signal).
[0011]
The defect detection unit performs data processing for extracting defects based on the captured image. Generally, a method is used in which a picked-up image at a stage where printing conditions are adjusted in printing and a non-defective product is discharged is used as a reference image, and a subsequent picked-up image is used as an inspection target image, and the two are compared to extract defects. When this defect extraction is performed, it is possible to obtain a defect shadow (also referred to as a defect image) that is a shadow of only the defect from which the printed pattern is erased. In addition, it is possible to determine the type of defect from the shape and density of the defective shadow, for example, streaks that run in the web transfer direction, dark stains (ink splashes, etc.), and light wide-area stains (color tone failures, etc.). it can.
[0012]
The inspection data output unit inputs the synchronization signal output by the synchronization control unit and the data output by the defect detection unit, the defect position in the winding body, the defect position in the unit print image, the defect shadow, the defect type, etc. The inspection data (also referred to as inspection information) is output. Also, one unit of print image is output for use in the defective content editing apparatus.
[0013]
The defect position in the winding body can be obtained by measuring the length (m) of the web from the core of the printed matter winding body in the measurement process in the printing press. Converted to the web length measured from the outermost web edge of the body. The defect position in one unit print image is given by the coordinate value (x, y) in one unit print image. The defect shadow is an image obtained by cutting out the extracted defect by a predetermined method. For example, a rectangle circumscribing the defect is set, and an image inside the rectangle is defined as a defect shadow. When the defective shadow is given by a rectangle, the coordinate value can be the angular coordinate of the rectangle. The defect type is given as a symbol or text data.
[0014]
Although the defective shadow and the print image are image data, it is not necessary to be image data having the same pixel density (resolution) and the same gradation expression as the captured image in the printed matter inspection apparatus 1. Pixel thinning and gradation compression are performed within a range in which the content of the defect can be discriminated by the operator, and the data amount can be appropriately compressed.
[0015]
The defect content editing device 2 inputs inspection data output by the printed matter inspection device 1.
Then, based on the inspection data, the defect content in the web print is edited on one unit of print image to generate a defect image. Based on the coordinate value (x, y) and the defective shadow of the defective position in one unit of the printed image, the defective shadow portion in the printed image is replaced with the defective shadow. This replacement is performed for all defective shadows, and a printed image including the defective shadows is generated.
[0016]
Further, the defect content editing device 2 assigns serial numbers in order from the smallest number of meters which is the defect position in the winding body, that is, the web length (m). Then, in the print image including the defective shadow, the serial number and the number of meters are combined so that the correspondence relationship with the defective shadow becomes clear. In addition, the defect content editing device 2 synthesizes defect types so that the correspondence relationship with the defect shadow is clear in the print image including the defect shadow. The serial number, the number of meters, and the defect type are represented by symbols, numbers, and letters.
[0017]
An example of a defect image edited by the defect content editing device 2 is shown in FIG. As shown in FIG. 2, in this example, four defective shadows are combined with one unit of print image. Each bad shadow is shown inside a rectangular frame. Further, serial numbers “(1)” to “(4)” are attached immediately outside the rectangular frame. Moreover, the defective position in a winding body is shown in the number of meters which is web length (m) along with a serial number. In this example, the defect type is not shown. Since the density, shape, and type of the defect can be determined from the defect shadow, the defect type can be omitted.
[0018]
A defective image edited by the defective content editing device 2 is printed by a printer to obtain a defective image print 3. FIG. 3 is an explanatory diagram of how to use this defective image print. In FIG. 3, 3 is a defective image print, and 4 is a printed matter winding body. As shown in FIG. 3, the defective image print 3 is attached to the corresponding printed product winding body 4 and conveyed to the subsequent process integrally with the printed product winding body 4. By attaching the defective image print 3 to the outer peripheral portion of the printed matter winding body 4, the grasp of the print quality of the printed matter winding body 4 becomes obvious at a glance. Further, since the defective image print 3 and the printed matter winding body 4 are integrated, it is possible to make a mistake in information transmission difficult to occur.
[0019]
The printed matter winding body 4 to which the defective image print 3 is affixed is conveyed to a defective sampling process in a subsequent process. In the defect extraction step, the defect contents such as the defect position on the winding body, the defect position in the unit print image, and the defect shadow are clearly indicated to the operator by the affixed defect image print 3. As a result, defective sampling work is supported, and remarkable effects such as shortening of work time and reduction of work load in defective sampling work can be obtained.
[0020]
Although the present invention has been described with reference to the embodiment, the present invention is not limited to this embodiment, and can be implemented in various forms based on the technical idea of the present invention. It goes without saying that it is included in.
For example, in FIG. 1, the printed matter inspection apparatus 1 and the defective content editing device 2 are shown as separate devices and described as such, but the defective content editing device 2 is integrated with the printed matter inspection device 1 to form an integrated device. be able to.
Further, for example, a defect image edited by the defect content editing device 2 can be displayed on a display monitor installed in the printing process or defect sampling process, and the work there can be supported. In this case, defective image printing can be omitted.
[0021]
【The invention's effect】
According to the defect content editing apparatus according to claim 1 of the present invention, a plurality of defect contents including a defect position in the length direction on the winding body, a defect position on the printed image for one round of the plate cylinder, and a defect shadow. Can be synthesized on a printed image for one round of the plate cylinder and edited to be clearly shown as a defective edited image. The plurality comprise According to poor sampling work supporting device according to claim 2 of the present invention, a defect position in the length direction of the winding body, a defect position on the plate cylinder one round of the printed image, and a defect shadows A defect extraction work support apparatus is provided that supports the work in the defect extraction process by composing and editing the defect contents on a printed image for one round of the plate cylinder and clearly indicating the defect edit image. According to the defect sampling operation support method according to claim 3 of the present invention, a plurality of defect positions in the lengthwise direction on the winding body, a defect position on the printed image for one round of the plate cylinder, and a defect shadow are included . Defective sampling support method for supporting the work in the defective sampling process by clearly editing the defective content on the printed image for one round of the printing cylinder , editing the defective edited image on paper, and attaching it to the winder Is provided.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram relating to data processing in a defective sampling work support apparatus of the present invention.
FIG. 2 is a diagram illustrating an example of a defect image edited by a defect content editing device 2;
FIG. 3 is an explanatory diagram of a method of using a defective image print.
DESCRIPTION OF SYMBOLS 1 Printed matter inspection apparatus 2 Defect content editing apparatus 3 Defective image print 4 Printed product winding body

Claims (3)

A plurality of defect contents including a defective position in the lengthwise direction on a web printed matter winding body, a defective position on a printed image for one round of a plate cylinder, and a defective shadow are synthesized on a printed image for one full plate cylinder. A defect content editing apparatus, which edits and generates a defect edit image. Printed matter inspection means for inspecting a printed matter on the web based on the captured image and outputting inspection data, a defective position in the length direction in the winding body of the web printed matter on the basis of the inspection data, and a printed image for one round of the plate cylinder A defect sampling operation characterized by comprising defect content editing means for generating a defective edited image by combining a plurality of defective contents including a defective position and a defective shadow on a printed image for one round of a plate cylinder Support device. A printed matter inspection process for inspecting a web printed matter based on the captured image and outputting inspection data, a defective position in the length direction of the web printed matter winding body based on the inspection data, and a printed image for one round of the plate cylinder A defect content editing process in which a plurality of defect contents including defect positions and defect shadows are combined and edited on a print image for one full plate cylinder to generate a defect edit image, and the defect edit image is printed on paper. A defective sampling operation support method comprising: a printing process for obtaining a defective edited image print; and a defective edited image print attaching process for attaching the defective edited image print to the winding body.

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