JPH11105263A - Method for identification coding press plate, method and apparatus for confirming mounting of the plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further effectively detect erroneous mounting of a press plate by attaching start or end mark to other side end and attaching a data mark between identification areas with ink different from printing element and non- printing element color in a data identification area having one row, a plurality of digits partitioned to desired position of the plate. SOLUTION: A cylinder position identification code is printed in a different color from colors of printing element surfaces of press plates 3A to 3D on one row, a plurality of digits at a desired position of the surfaces of the plates 3A to 3D such as, for example, an upper side. In the area, a start mark, intermediate mark and end mark are, for example, sequentially provided from left side. After the plates 3A to 3D printed with data marks of the codes are mounted on a plate cylinder 1, a drive button of a printer is pressed. Then, the cylinder 1 is slowly rotated. At that time, when the start mark 23 is detected by a start position reading sensor 25, a television camera 19 is operated to image the data marks of the codes of the plates 3A to 3D so that ink of the similar color to that of the element part is not recognized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing plate identification and marking method for mounting and confirming printing plates when mounting an appropriate number of printing plates on a plate cylinder of a printing press, and mounting the printing plates. A method and an apparatus therefor.

[0002]

2. Description of the Related Art Conventionally, in newspaper printing, one or two folding machines and about eight to ten rotary presses are connected and combined, and
A rotary press train of a unit (usually called one set) is configured. In a large-scale printing factory, a plurality of sets of rotary press trains are installed, and one or a plurality of newspapers of different paper organization are assigned to the newspaper distribution districts according to the number of print copies. The mounting position of the printing plate to be mounted on each rotary press in one set is determined by rotary press operating conditions such as the number of pages of a newspaper, the number of rotary presses in a set, and the type of rotary press.

For example, to print a 32-page newspaper, 4
If one rotary press is used, eight types of printing plates are mounted on one plate cylinder. Further, two plates of the same printing plate are mounted on the same plate cylinder. Then, a total of 64 printing plates are required to print a 32 page newspaper. Therefore, when the operator (operator) mounts a large number of printing plates for each rotary press, there is a risk that the printing plates may be incorrectly mounted.

Also, in commercial printing, since a plurality of types of printing plates are mounted on a plurality of rotary presses, there is a risk that the printing plates may be erroneously mounted when the operator mounts the printing presses on a rotary press basis.

Conventionally, in order to prevent such erroneous mounting of the printing plate, the operator relies on the attention of the operator at the time of mounting and the visual inspection by the operator immediately after the start of printing. Recently, due to rationalization, the amount of work performed by one operator has been increased and the work density has been increased, and the paper inspection work has reached its limit due to the increase in the number of newspaper pages and the increase in printing speed. In addition, if an incorrect mounting of a printing plate is found by this paper inspection work, it is necessary to immediately stop the rotary press train and remount the incorrectly mounted printing plate, which is an extremely complicated operation.

[0006]

In the method in which the erroneous mounting of the printing plate is detected by the judgment of the operator, the possibility of the erroneous mounting cannot be reduced to zero due to the misunderstanding of the operator. In addition, the paper inspection operation itself is complicated, and the re-attachment of a printing plate that is found and incorrectly mounted by the paper inspection operation is more complicated. For this reason, without depending on the judgment of the operator,
Moreover, it is strongly desired that erroneous mounting of the printing plate can be reliably detected before printing is started.

The present inventors have already proposed, for example, Japanese Unexamined Patent Publication No. 5-16938 as a printing plate erroneous mounting detection device capable of reliably detecting erroneous mounting of a printing plate. It was complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for automatically identifying a plate, and a method for identifying and attaching a plate more reliably and rationally. It is an object of the present invention to provide a printing plate mounting confirmation method and device.

[0009]

According to a first aspect of the present invention, there is provided a method for identifying and assigning a printing plate, comprising the steps of: defining a data identification area comprising one row and a plurality of digits at a desired position on the printing plate; Of the divided data identification areas,
The start mark was marked on the identification area at one end and the end mark was marked on the identification area at the other end, and the start mark and the end mark were marked with ink having a color different from the color of the image area or the non-image area. A data mark is marked on the identification area between the identification areas.

Therefore, the identification area for one side, which is different from the color of the image area or the non-image area, is provided in the data identification area composed of one column and a plurality of digits defined at a desired position on the printing plate. In addition, an end mark is marked on the identification area on the other side end, and a data mark is marked on, for example, a plurality of identification areas between the identification area marked with the start mark and the end mark.

Then, when a necessary data mark is imaged later by the collation imaging means, the data mark is easily, reliably, and accurately imaged based on the start mark and the end mark.

According to a second aspect of the present invention, there is provided a method of identifying a printing plate according to the first aspect of the present invention, wherein an identification area between the identification areas marked with the start mark and the end mark is appropriately divided. In addition, the mounting position identification mark is marked with ink having a color different from the color of the image portion or the non-image portion between the identification areas of the divided portions, and a space area is provided before and after the mounting position identification mark. Is provided.

Accordingly, the mounting position identification mark is different from the color of the image area or the non-image area in the identification area where the identification area between the identification area marked with the start mark and the end mark is appropriately divided. By providing a space area before and after the mounting position identification mark, which is marked with color ink, when a necessary data mark is later imaged by the matching imaging means, a start mark, an installation position identification mark, Based on the end mark, the data mark can be more easily, reliably, and accurately imaged.

According to a third aspect of the present invention, there is provided the plate identification coding method according to the first or second aspect, wherein a space area is provided outside the identification area marked with the start mark. A discard mark is marked on an identification area defined outside the area.

Therefore, a space area is provided outside the identification area marked with the start mark.
When the discard mark is marked on the identification area defined outside this space area, the discard mark becomes a test print in the printing device, and the subsequent start mark, data mark, and end mark are printed reliably and accurately. Done in

According to a fourth aspect of the present invention, there is provided the plate identification adding method according to the first, second, or third aspect, wherein the plate identification adjacent to the data identification area partitioned at a desired position of the plate. hand,
It is characterized in that a character information identification area consisting of an appropriate number of digits is partitioned, and character information is marked in the partitioned character information identification area.

Therefore, a character information identification area consisting of an appropriate number of digits is defined adjacent to the data identification area defined at a desired position on the printing plate, and character information is added to the divided character information identification area. By doing so, it is helpful for the operator to see this character information when mounting the printing plate on the plate cylinder.

According to a fifth aspect of the present invention, there is provided a printing plate mounting / checking method for mounting and checking an appropriate number of printing plates on a plate cylinder of a printing press. A transporting step of transporting the printing plate selected from the cylinder position identification code including the mounting cylinder position information to a position corresponding to the printing apparatus; (B). In the data identification area consisting of a single column and a plurality of digits divided at a desired position on the object plane of the printing plate conveyed to a position corresponding to the printing apparatus in the conveyance step, an object part or a non-object part The start mark is printed on the identification area at one end and the end mark is printed on the identification area at the other end, and the identification area between the identification area on which the start mark and the end mark are printed is made of ink having a color different from the color of the part. A printing step of printing a data mark, (C). A mounting step of mounting a printing plate, on which a necessary mark is printed on an image plane in the printing step, at a predetermined position of the plate cylinder; (D). After the steps (A) to (C) are repeated and an appropriate number of printing plates are mounted on the plate cylinder, when a data mark on each of the plates mounted on the plate cylinder is imaged by the image capturing unit for comparison, (E) an image capturing step of confirming the positions of the start and end marks by the image capturing means for collation and then capturing the data mark; The comparison includes a torso position identification code composed of necessary data marks imaged in the imaging step and a torso position identification code set and stored in advance. It is a feature.

Therefore, the printing plate selected from the cylinder position identification code including the mounting position information is transported to a position corresponding to the printing apparatus. At this position, one line, which is partitioned at a desired position on the object plane of the printing plate, in a data identification area consisting of a plurality of digits, with an ink having a color different from the color of the object part or the non-object part, by a printing device, A start mark is printed on the identification area on one side end, an end mark is printed on the identification area on the other side, and data marks are printed on, for example, a plurality of identification areas between the identification area on which the start mark and the end mark are printed. You.

When an appropriate number of printing plates are mounted on the plate cylinder in the manner described above, the necessary data marks of each printing plate, which are the cylinder position identification codes of the printing plates mounted on the plate cylinder, are obtained by the image pickup means for comparison. Is imaged for each plate. The torso position identification code composed of the necessary data mark imaged by the image pickup means for comparison is compared with a preset torso position identification code which is input and stored in advance.

Even if, for example, the operator mistakenly mounts each printing plate on the plate cylinder, the cylinder position identification code and the preset cylinder position identification code are compared and collated.
At this point, the erroneous mounting is automatically detected, and the printing press is operated with peace of mind. As a result, the ink of the cylinder position identification code printed on the image plane of each printing plate is erased by the dampening solution, and does not affect the printing. If the printing device of the present invention is an ink jet printer, the ink is a water-based ink, which is suitable for the present invention.

When the data mark printed on the object plane of each printing plate mounted on the plate cylinder is picked up by the image pick-up means for collation, the position of the start mark and the end mark may be changed even if the data mark is curved due to the image pickup characteristics. Is checked, and the data mark is corrected between the start mark and the end mark, so that the data mark can be easily, reliably, and accurately recognized on a substantially straight line. Further, since the printing plate is cylindrical, arranging the data marks in one row makes it easy to handle as a video.

According to a sixth aspect of the present invention, there is provided the method for mounting and confirming the printing plate according to the fifth aspect, wherein (F). After operating the printing press, remove the printing plate at a desired position on the plate cylinder on which the printing plate with the data mark is attached, and replace the printing plate with the new data mark with a new printing plate. Is attached to a desired position on the plate cylinder through the above-described steps (A) to (D), and a cylinder position identification code of the attached plate is input and stored in advance. And comparing at least the set body position identification code and collation.

Therefore, when a printing plate is mounted at a desired position on the plate cylinder, a suitable number of printing plates are mounted on the plate cylinder, and the printing press is operated, the cylinder printed on the image plane of each printing plate is operated. If the ink of the position identification code is a water-based ink for an ink jet, it is erased in a short time with a fountain solution, so that it is operated without affecting printing. Then, when a desired printing plate is removed from the mounted printing plate, and a printing plate with a new data mark is mounted in the above-described steps (A) to (D), the printing plate is removed. At least the trunk position identification code and a preset trunk position identification code are compared and collated.

Then, the cylinder position identification code of the replaced printing plate is compared and collated in a short time, and the ink is erased in a short time. In addition, a case where a wrong mounting is performed at a place where the other body position identification code is deleted is also detected.

According to a seventh aspect of the present invention, there is provided a printing plate mounting / confirming method according to the fifth aspect, wherein the data mark is imaged by the collating imaging means in the imaging step (D).
The color component on the image plane of the printing plate is absorbed or transmitted by a filter provided in the image pickup means for comparison.

Therefore, when the data mark is picked up by the image pickup means for comparison in the image pickup step, the color components of the image plane of the plate are absorbed or transmitted by the filter, and the image pickup means for collation is transmitted to the image pickup means for comparison. Color components are accurately imaged.

According to an eighth aspect of the present invention, there is provided a method of mounting and confirming a printing plate according to the fifth aspect, wherein in the printing step (B), the identification area on which the start mark and the end mark are printed is provided. Divide the identification area between
A mark for mounting position identification is printed in an ink of a color different from the color of the image portion or the non-image portion on the identification area of the divided portion, and a space area is provided before and after the mark for mounting position identification. It is characterized by the following.

Therefore, when a necessary data mark is picked up by the image pickup means for comparison, the space between the start mark and the end mark in the data identification area is distributed at regular intervals by the mounting position identification mark. Thereby, one side can be easily, reliably and accurately recognized.

According to a ninth aspect of the present invention, there is provided the printing plate mounting and checking method according to the fifth and sixth aspects, wherein the start mark is printed in the printing step (B). A space area is provided outside the identification area, and a discard mark is printed on the identification area partitioned outside the space area.

Therefore, before the start mark is printed, test printing is performed on the discarded mark by the printing apparatus, and then the data mark and the end mark are printed in order from the start mark, so that the start mark, the data mark, and the end mark are printed. The printing of the mark is performed reliably and accurately.

The method for mounting and confirming a printing plate according to claim 10 is the method for mounting and checking a printing plate according to claims 5, 7, 8 and 9.
In the printing step (B), a character information identification area consisting of an appropriate number of digits is partitioned adjacent to the data identification area partitioned at a desired position on the printing plate. Character information is printed.

Therefore, a character information identification area consisting of an appropriate number of digits is defined adjacent to the data identification area defined at a desired position on the printing plate, and the character information identification area is provided with character information. It is helpful for the operator to see this character information when mounting each printing plate on the plate cylinder.

The plate mounting and checking device according to the eleventh aspect is a plate mounting and checking device for mounting and checking an appropriate number of plates on a plate cylinder of a printing press. A higher-level control device having a cylinder position identification code and a memory for preliminarily inputting and storing a set cylinder position identification code including a mounting cylinder position in each printing plate; and (B). A control device for a printing apparatus controlled based on the cylinder position identification code and the cylinder position identification code from the memory; (C). Among the data identification areas partitioned at desired positions on the printing plate image plane designated by the control of the printing apparatus control device, at least an ink having a color different from the color of the printing area or the non-printing area is used. A printing device that prints a start mark on the identification area on one side end, an end mark on the identification area on the other side end, and prints a data mark in an identification area between the identification area on which the start mark and the end mark are printed; D). The printing apparatus mounts an appropriate number of the plates on the plate cylinder based on the cylinder position identification code of a necessary data mark printed on the printing plate surface, and prints the plate mounted on the plate cylinder. (E) a collation imaging means for imaging the body position identification code printed on the object plane; A torso position identification code imaged by the matching imaging means and a torso position identification code and a set torso position identification code stored in advance in a memory provided in the higher-order control device are provided in a higher-order control device. Comparison / collation means.

Therefore, the plate mounting / confirming device according to the tenth aspect performs the plate mounting / confirming method according to the fifth to eighth aspects. Since the cylinder position identification code and the preset cylinder position identification code are automatically compared and collated, detection can be performed with almost no erroneous detection, and the printing press can be operated with peace of mind.

When the printing press is operated, the ink of the cylinder position identification code printed on the object plane of each printing plate is erased in a short time, so that printing is not affected.

When the data mark of each printing plate is picked up by the image pickup means for collation, even if the data mark is curved due to the image pickup characteristic, the position of the start mark and the end mark is confirmed, and the distance between the start mark and the end mark is determined. The correction allows the data mark to be easily, reliably and accurately recognized on a substantially straight line. Also, since the printing cylinder is cylindrical, 1
By arranging the data marks in a row, it becomes easy to handle as a video.

According to a twelfth aspect of the present invention, there is provided the printing plate mounting / confirming apparatus according to the ninth aspect, wherein (F). Correct the trunk position identification code based on a straight line connecting the start mark and the end mark imaged by the imaging means for verification,
The host controller is provided with a correction processing device for comparing this correction value with a set trunk position identification code.

Therefore, by providing the correction processing device in the host control device, the start mark, the data mark and the end mark captured by the comparison imaging means are taken into the correction processing device. The position signals of the captured start mark and end mark are connected by a straight line, and the position signals of a plurality of data marks are captured based on a correction straight line slid at a slightly smaller ratio than the straight line. By comparing with the preset body position identification code, accurate detection without erroneous detection is performed.

According to a thirteenth aspect of the present invention, there is provided a printing plate mounting / confirming apparatus according to the eleventh and twelfth aspects.
(G). (H) an identification code reading start sensor for a printing plate mounted on a plate cylinder of a printing press; And a shutter provided in the image capturing means for collation which operates based on the start information read by the identification code reading start sensor.

Therefore, when the cylinder position identification code printed on an appropriate number of object planes mounted on the plate cylinder is imaged by the image pickup means for verification, when the plate cylinder is rotated, the cylinder plate is rotated. It is read by the identification code reading start sensor. The shutter of the image pickup means for collation is actuated by the read signal, and the cylinder position identification code printed on the object plane of an appropriate number of printing plates is immediately, easily, reliably and accurately taken in a short time. .

According to a fourteenth aspect of the present invention, there is provided a plate mounting / confirming apparatus according to the eleventh aspect, wherein the collating imaging means absorbs or transmits a color component of an object plane of the plate. Is provided.

Therefore, when the data mark is picked up by the image pickup means for comparison, the filter absorbs or transmits the color components of the object plane of the plate, and the color image component of the image plane of the plate is sent to the image pickup means for comparison. It is accurately imaged.

[0044]

Embodiments of the present invention will be described below in detail with reference to the drawings.

Referring to FIG. 1, a plate cylinder 1 of a rotary press in a printing press is extended in the left-right direction, and a plurality of partitioned areas are formed in the longitudinal direction of the plate cylinder 1. For example, a plurality of printing plates 3A, 3B, 3C, and 3D are mounted in each of the divided areas by an operator (operator).

An operator mounts the printing plates 3A, 3B, 3C, and 3D on a plurality of partitioned areas of the plate cylinder 1, and further includes a printing plate 3A, 3B, 3C, and 3D mounting / confirmation device 5 for confirming the mounting. Are located. This mounting / confirmation device 5
Is provided with a body position identification code / memory 7 for storing in advance the body position identification codes corresponding to the printing plates 3A, 3B, 3C and 3D by input means, a comparing / collating means 9 and a correction processing device 11, 13, the printing plates 3A, 3B,
Ink jet printers 15 and 15 'as printing devices for printing cylinder position identification codes at desired positions on the object plane 3S on the front side of 3C and 3D, and printing devices for operating the ink jet printers 15 and 15' A control device 17 for an ink jet printer as a control device; and, for example, a television camera 19 as an imaging means for comparison for imaging the cylinder position identification code of the printing plates 3A, 3B, 3C, and 3D mounted on the plate cylinder 1. , An image processing device 21.

A start mark 23 for determining a start position as start information is provided on the left side of the plate cylinder 1 in FIG. A start position reading sensor 25 as an identification code reading start sensor for detecting the start mark 23 is provided near the plate cylinder 1. The start position reading sensor 25 is connected to a shutter 27 provided in the television camera 19. A filter 2 that absorbs or transmits color components of the printing plate, for example, blue, is provided on the front surface of the television camera 19.
9 are provided.

Desired positions of the object planes 3S of the printing plates 3A, 3B, 3C and 3D, for example, as shown in FIG. For example, an identification area 31 composed of, for example, 18 digits is partitioned at equal intervals. Also, adjacent to this 18-digit identification area 31, for example, one row for writing character information at the bottom, a plurality of digits (appropriate digits) In this embodiment, a 25-digit identification area 33
Are equally spaced.

In FIG. 2, an identification area 3 consisting of 18 digits
In 1, for example, discard mark H, space F,
Start mark A, data mark D is 5 digits, space F, intermediate mark B, space F, data mark D is 5 digits
The digit, parity mark (even) E and end mark C are printed. Of these, the discard mark H,
Start mark A, intermediate mark B, parity mark E,
Since the colors of the printing plates 3A, 3B, 3C, and 3D are blue, the end mark C is solid-printed with black ink of a color different from the blue color, and if displayed in a binary system, "1" (ON) A bit of stand. No space F is printed, and if displayed in binary, a bit of "0" (OFF) is set. Then, the data mark D is printed solid in black or nothing is displayed, and if displayed in a binary system, a bit of "1" (ON) or a bit of "0" (OFF) is set.

In FIG. 2, in the identification area 33 consisting of 25 digits, for example, from the left side, the discard mark H ', the space F is 2 digits, the character G is 8 digits, the space F', the space F
Is printed with 3 digits, and the character G is printed with 10 digits. No space is printed in the spaces F 'and F. The characters G and H 'are printed in characters, numbers, circles, squares, dots, and the like in colors similar to the image portions of the printing plates 3A, 3B, 3C, and 3D. Each character G allows the operator to:
The date, the number of pages, the number of plates, the mounting position, the press name of the machine, and character information such as circles, squares, dots, etc. can be confirmed. The operator can print each plate 3A, 3B, 3C, 3D on the plate cylinder. This is helpful when attaching to 1.

For example, the printing plate 3 is stored in the cylinder position identification code / memory 7.
Assuming that the cylinder position identification code corresponding to A, 3B, 3C, and 3D is stored in a binary system, the cylinder position identification code is transmitted from the memory 7 to the ink jet printer 15 via the ink jet printer controller 17. When the signal is sent, the ink jet printer 15 is operated, and printing is performed with black ink on the identification area 31 of the object plane 3S of the printing plates 3A, 3B, 3C, and 3D in the order shown in FIG. .
At this time, the reason for printing the discard mark H with a space F on the left side in FIG. 2 before the start mark A is that test printing is performed by the ink jet printer 15 and printing after the start mark A is performed reliably and easily. It is for.

Similarly, in the ink jet printer 15 ', the identification area 33 defined below the identification area 31 shown in FIG. 2 is similar to the image plane in the order shown in FIG. Character information is printed with characters, numbers, etc. in color ink. This character information is printed by the operator on plate 3.
When the A, 3B, 3C, and 3D are mounted on the plate cylinder 1, a visual inspection is useful. The discard mark H 'is for performing printing with the ink of the character G reliably and accurately.

The color of the ink to be printed on the identification area 31 is not limited to black but may be any color as long as the color is different from the color of the object plane of the printing plates 3A, 3B, 3C and 3D. I do not care. However, when the television camera 19 is used as the matching imaging unit, black ink is desirable.
In addition, this ink must be an ink that does not affect printing in the printing process, that is, an ink that is not printed on a printing medium. The ink is hydrophilic and is preferably dissolved in water. It is preferable that the print is not dissolved and printed in the fountain solution. The composition of the dampening solution is usually water 9
9.5% and 0.5% nonionic surfactant.

As described above, the image plane 3S of the printing plates 3A and 3D
At a desired position, for example, on the upper side, an identification area 3 of one row and a plurality of digits
By printing the cylinder position identification code in a color different from the color of the object planes of the printing plates 3A to 3D, for example, black, it is possible to more easily, surely, and accurately apply the code. Further, since the start mark A, the intermediate mark B (the mark B for identifying the mounting position), and the end mark C are provided, when the data mark D is imaged by the TV camera 19 described later, it is easy and reliable without error. And can be accurately recognized.

By the ink jet printer 15,
After the data mark of the cylinder position identification code is printed on the printing plates 3A, 3B, 3C, and 3D as shown in FIG. 2, the operator can print the printing plates 3A, 3B, 3C, and 3B on the plate cylinder 1 as shown in FIG.
Attach each 3D. At this time, the operator refers to the printed character information G to make the printing plates 3A, 3B, 3
Since only C and 3D are mounted on the plate cylinder 1, erroneous mounting can be reduced and workability can be improved.

After the printing plates 3A, 3B, 3C, and 3D on which the data mark of the cylinder position identification code is printed are mounted on the plate cylinder 1, when the drive button of the printing press is pressed, the plate cylinder 1 is slowly rotated. . At that time, when the start mark 23 is detected by the start position reading sensor 25, the shutter 27 of the television camera 19 provided above the plate cylinder 1 operates, and the television cameras 19 operate the plate 3A, 3B, 3C, 3D. The data mark of the trunk position identification code is imaged. At this time, the television camera 19 is provided with a filter 29 for absorbing or transmitting the color components of the printing plate surface, and the filter 29 recognizes character information displayed in the same color ink as the printing surface. As a result, it is possible to provide only the data mark accurately without erroneous imaging.

As the data marks printed on each of the printing plates 3A to 3D, of the marks shown in FIG. The reason why the start mark A and the end mark C are imaged is that if the start position and the end position are not clearly known, the data mark D cannot be imaged reliably and accurately. Thus, the data mark D between the start mark A and the end mark C can be easily, reliably, and accurately imaged.

The start mark A and the end mark C
For example, an intermediate mark B is provided as a mounting position identification mark that divides the start mark A into a start mark A by providing a space F before and after the intermediate mark B.
2 between the intermediate mark B and the intermediate mark B and the end mark C.
By dividing the data mark D into two, the distance at which the data mark D is imaged is made short and straight, so that the data mark D can be more easily, reliably, and accurately captured. The reason for this is that the distance between the start mark A and the intermediate mark B or the distance between the intermediate mark B and the end mark C is accurately captured depending on the distance between each of the printing plates 3A to 3D and the television camera 19 and the wide-angle characteristics of the television camera 19. This is to make it possible.

The data mark of the body position identification code captured by the television camera 19 is taken into the image processing device 21. In the image processing apparatus 21, only the black color of the data mark of the cylinder position identification code of the printing plates 3A to 3D is input, and FIG.
Is processed as an ON-OFF signal as shown in FIG. That is, the start A and the intermediate mark B in FIG.
The data mark D between the intermediate mark B and the end mark C is 11011.
0111 is processed in a binary system.

However, the ON-OF of the model shown in FIG. 3 depends on various conditions such as when the illumination of the start mark A is bright and the illumination of the end mark C is dark.
The F signal is subjected to image processing, for example, as shown in FIG. 4. Therefore, in the correction processing device 11, the non-image portions of the spectrum F before and after the start mark A and the end mark C are connected by a straight line CL, and the straight line CL is used. The center point D _{0 of} each mark is set at a more constant ratio and based on a straight line CL ₁ parallel to the lower side.
There either is above this straight line LC _1, on whether the underlying by divided into the bit "0" and "1", regardless of the degree of dirt and color or brightness, more reliable and accurate bit The signal can be detected.

The bit signal based on the data mark of the body position identification code corrected by the correction processing device 11 is compared and compared.
It is compared with the bit signal of the preset body position identification code which is taken in by the collation means 9 and already taken in from the body position identification code / memory 7, and is collated. This collation result is immediately answered and a notification or a warning is issued.

Therefore, even if the operator mounts the rotary press incorrectly, the comparing / collating means 9 can detect the incorrect mounting and stop the rotary press, so that the rotary press can be safely operated.

By the time the rotary press is operated and good paper is produced, the data mark of the cylinder position identification code and the character information printed by the dampening solution can be erased in a short time, which affects printing. Has no effect.

Printing plate 3 mounted on plate cylinder 1 of rotary press
A, 3B, 3C, 3D, for example, the second printing plate 3B from the left side of the plate cylinder 1 is removed, and the data mark of the cylinder position identification code is placed on the printing plate 3B to which a new data mark is added in the manner described above. When printing is performed and the operator mounts the plate cylinder 1 on the plate cylinder 1, the data marks of the cylinder position identification codes of the printing plates 3A, 3B, 3C, and 3D are erased with dampening solution.

Therefore, in the second and subsequent times, only the data mark of the cylinder position identification code of only the necessary printing plate 3B that has been replaced is printed, so that only the exchanged portion needs to be verified.
It can be done in a short time. Other plates 3A, 3B, 3
Since the data mark of the trunk position identification code is deleted in C and 3D, it can be verified that there is no data mark of the trunk position identification code (no exchange). Naturally, if there is no data mark of the body position identification code, it is possible to detect a case where the body is erroneously mounted. In addition, the newly printed data mark of the body position identification code can be erased with dampening solution in a short time at the same time when the operation is restarted.

In FIG. 1, the explanation has been made based on the cylinder position identification code provided in the host controller 11 and the cylinder position identification code stored in the memory 7.
For example, a bar code is pasted as a body position identification code in advance on a part of 3B, 3C, 3D, for example, an upper right part, and a signal obtained by reading this bar code with a bar code reader is
The data may be transferred to the cylinder position identification code / memory 7 and the control device 17 for the ink jet printer.

Also, an appropriate number of printing plates 3 mounted on the plate cylinder 1 are provided.
When the cylinder position identification code printed on the object plane 3S of A, 3B, 3C, and 3D is imaged by the television camera 19 of the collation imaging unit, when the plate cylinder 1 is rotated, the printing plate 3A, 3B,
The start mark 23 at the start position of 3C, 3D is read by the start position reading sensor 25. The shutter 27 of the television camera 19 is actuated by the read signal, and the cylinder position identification code printed on the object surface 3S of the appropriate number of printing plates 3A, 3B, 3C, and 3D is easily and reliably obtained. An image can be accurately taken in a short time.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes.

[0069]

As will be understood from the above description of the embodiments of the present invention, according to the first aspect of the present invention, data identification consisting of a single column and a plurality of digits divided at a desired position on a printing plate. The area is marked with a different color from the color of the image area or non-image area.
The end area is marked on the identification area on the other side,
Data marks are marked on, for example, a plurality of identification areas between the identification areas marked with the start mark and the end mark.

Then, when a necessary data mark is imaged later by the collation imaging means, the data mark can be easily, reliably and accurately imaged with reference to the start mark and the end mark.

According to the second aspect of the present invention, the mounting position identification mark is provided in the image area or the non-printing area in the identification area where the identification area between the identification area marked with the start mark and the end mark is appropriately divided. By marking with an ink having a color different from the color of the image portion and providing a space area before and after the mounting position identification mark, a start mark can be used later when a necessary data mark is imaged by the matching imaging means. In addition, the data mark can be more easily, reliably, and accurately captured with reference to the mounting position identification mark and the end mark.

According to the third aspect of the present invention, a space area is provided outside the identification area marked with the start mark, and a discard mark is marked on the identification area provided outside the space area. Thus, the discard mark becomes a test print in the printing apparatus, and the subsequent start mark, data mark, and end mark can be reliably and accurately printed.

According to the fourth aspect of the present invention, a character information identification area consisting of an appropriate number of digits is defined adjacent to the data identification area defined at a desired position on the printing plate. By marking the character information in the character information identification area, it is possible to assist the operator by viewing the character information when mounting the printing plate on the plate cylinder.

According to the fifth aspect of the present invention, the printing plate selected from the body position identification code including the mounting position information is transported to a position corresponding to the printing device. At this position, one line, which is partitioned at a desired position on the object plane of the printing plate, in a data identification area consisting of a plurality of digits, with an ink having a color different from the color of the object part or the non-object part, by a printing device, A start mark is printed on the identification area on one side end, an end mark is printed on the identification area on the other side, and data marks are printed on, for example, a plurality of identification areas between the identification area on which the start mark and the end mark are printed. You.

When an appropriate number of printing plates are mounted on the plate cylinder in the manner described above, the necessary data marks of each printing plate, which are the cylinder position identification codes of the printing plates mounted on the plate cylinder, are compared with the image pickup means for comparison. Is imaged for each plate. The torso position identification code composed of the necessary data mark imaged by the image pickup means for comparison is compared with a preset torso position identification code which is input and stored in advance.

Even if, for example, the operator mistakenly mounts each printing plate on the plate cylinder, the cylinder position identification code and the preset cylinder position identification code are compared and collated.
At this point, the erroneous mounting is automatically detected, and the printing press is operated with peace of mind. As a result, the ink of the cylinder position identification code printed on the image plane of each printing plate is erased by the dampening solution, and does not affect the printing.

When the data mark printed on the object plane of each printing plate mounted on the plate cylinder is imaged by the image pickup means for verification, even if the data mark may be curved due to the image pickup characteristics, the position of the start mark and the end mark may be changed. Is confirmed, and the data mark can be easily, reliably and accurately recognized on a substantially straight line by correcting the gap between the start mark and the end mark. In addition, since the printing plate has a cylindrical shape, by arranging the data marks in one line, it is possible to easily handle the image as an image.

According to the sixth aspect of the present invention, a printing plate is mounted at a desired position on a plate cylinder, an appropriate number of printing plates are mounted on the plate cylinder, and when the printing press is operated, the image of each plate is printed. Since the ink of the cylinder position identification code printed on the line surface is erased in a short time with the dampening solution, the operation is performed without affecting the printing. When a desired plate of the mounted plates is removed and a plate provided with a new data mark is mounted in the steps (A) to (D), the actual plate of the plate is actually mounted. At least the trunk position identification code and a preset trunk position identification code are compared and collated.

Then, the cylinder position identification code of the exchanged printing plate can be compared and collated in a short time, and the ink can be erased in a short time. In addition, it is possible to detect a case where the body is erroneously attached to a place where the other body position identification code is deleted.

According to the seventh aspect of the present invention, when the data mark is picked up by the matching image pickup means in the image pickup step, the color component of the image plane of the printing plate is absorbed or transmitted by the filter, and the collation image pickup means The color components on the object plane of the printing plate can be accurately imaged.

According to the eighth aspect of the present invention, when the required data mark is picked up by the image pickup means for comparison, the space between the start mark and the end mark in the data identification area is equally spaced by the mounting position identification mark. By allocating and capturing images, it is possible to capture images more easily, reliably, and accurately.

According to the ninth aspect of the present invention, before the start mark is printed, after the test mark is printed on the discard mark by the printing apparatus, the data mark and the end mark are printed in order from the start mark. The start mark, the data mark, and the end mark can be reliably and accurately printed.

According to the tenth aspect, a character information identification area consisting of an appropriate number of digits is defined adjacent to the data identification area defined at a desired position on the printing plate. Since the character information is printed on the area by the printing apparatus, it is possible to help the operator to see the character information when mounting each printing plate on the plate cylinder.

According to the invention of claim 11, claims 5 to 8
The method of mounting and confirming the printing plate is performed by, for example, even if the operator mistakenly mounts the printing plate, the body position identification code and the preset body position identification code are automatically compared and collated by the comparison / collation means. The printing press can be operated with a sense of security with little erroneous detection.

When the printing press is operated, the ink of the cylinder position identification code printed on the object plane of each printing plate is erased in a short time, so that printing is not affected.

When the data mark of each printing plate is picked up by the image pickup means for collation, even if the data mark is curved due to the image pickup characteristics, the positions of the start mark and the end mark are confirmed, and the distance between the start mark and the end mark is determined. By performing the correction, the data mark can be easily, reliably, and accurately recognized on a substantially straight line. In addition, since the printing cylinder has a cylindrical shape, by arranging the data marks in one line, it is possible to easily handle the image as an image.

According to the twelfth aspect of the present invention, since the host control device is provided with the correction processing device, the start mark, the data mark, and the end mark imaged by the comparison imaging means are taken into the correction processing device. The captured start mark and end mark position signals are connected by a straight line, and a plurality of data mark position signals are captured based on a correction straight line that is slid at a slightly smaller ratio than the straight line. By comparing the identification code with a preset trunk position identification code, accurate detection without erroneous detection can be performed.

According to the thirteenth aspect of the present invention, when the cylinder position identification code printed on the object plane of the appropriate number of printing plates mounted on the plate cylinder is imaged by the collation imaging means, the plate cylinder is used. Is rotated, the plate is read by the identification code reading start sensor. The read signal activates the shutter of the image pickup means for verification and immediately and easily and reliably captures the cylinder position identification code printed on the object plane of the appropriate number of printing plates, and accurately and in a short time. Can be.

According to the fourteenth aspect of the present invention, when the data mark is picked up by the image pickup means for collation, the color component of the object plane of the plate is absorbed or transmitted by the filter, and the image pickup means for collation is transmitted to the image pickup means for collation. The color components on the object plane can be accurately imaged.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of mounting a printing plate according to an embodiment of the present invention;
It is a conceptual diagram of a confirmation device.

FIG. 2 is an explanatory diagram showing an example of printing a data mark of a cylinder position identification code and character information on a printing plate.

FIG. 3 is an explanatory diagram of a model in which a data mark in FIG. 2 is represented by an ON-OFF signal.

FIG. 4 shows ON / OFF of a data mark by a correction processing device.
FIG. 9 is an explanatory diagram for performing a signal correction process.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Plate cylinder 3A-3D printing plate 5 Plate mounting / confirmation device 7 Body position identification code / memory 9 Comparison / collation means 11 Correction processing device 13 Higher-level control device 15 Ink jet printer (printing device) 17 Control for ink jet printer Device (control device for printing device) 19 TV camera (imaging means for collation) 21 Image processing device 23 Start mark 25 Start position reading sensor (attachment code reading sensor) 27 Shutter 29 Filter 31, 33 Identification area

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tsukasa Nakanishi 2-3-3 Kyobashi, Chuo-ku, Tokyo Toyo Ink Manufacturing Co., Ltd.

Claims (14)

[Claims] 1. A data identification area consisting of a plurality of digits and one line is partitioned at a desired position on a printing plate, and a color of an image area or a non-image area of the divided data identification areas is defined. The start mark is marked on the identification area on one side end, the end mark is marked on the identification area on the other side, and the data mark is marked on the identification area between the identification areas marked with the start mark and end mark with ink of different colors. A printing plate identification and marking method, characterized in that: 2. An identification area between the identification areas marked with the start mark and the end mark is divided into an appropriate number, and a mounting position identification mark is placed between the divided identification areas at the image area or the non-image area. 2. The method according to claim 1, further comprising the steps of: marking with an ink having a color different from the color of the line portion; and providing a space area before and after the mounting position identification mark. 3. The method according to claim 1, wherein a space area is provided outside the identification area marked with the start mark, and a discard mark is marked on the identification area partitioned outside the space area. How to add the identification of the printing plate described. 4. A character information identification area consisting of an appropriate number of digits is defined adjacent to a data identification area defined at a desired position on the printing plate, and character information is stored in the partitioned character information identification area. Claims 1 and 2,
3. A method for identifying and assigning a printing plate according to item 3. 5. A method of mounting and checking a printing plate for mounting and checking an appropriate number of printing plates on a plate cylinder of a printing press, comprising: (A). A transporting step of transporting a printing plate selected from the cylinder position identification code including the mounting cylinder position information to a position corresponding to the printing apparatus; (B). In this transporting step, 1 is divided at a desired position on the object plane of the printing plate transported to a position corresponding to the printing apparatus.
In the data identification area consisting of columns and multiple digits, a start mark is applied to the identification area at one end and an end mark is applied to the identification area at the other end with ink having a color different from the color of the image area or the non-image area. A printing step of printing and printing a data mark in an identification area between the identification areas where the start mark and the end mark are printed, (C). A mounting step of mounting a printing plate, on which a necessary mark is printed on an image plane in the printing step, at a predetermined position of the plate cylinder; (D). After the steps (A) to (C) are repeated and an appropriate number of printing plates are mounted on the plate cylinder, when a data mark on each of the plates mounted on the plate cylinder is imaged by the image capturing unit for comparison, (E) an imaging step of confirming the positions of the start and end marks with the image pickup means for collation, and then imaging the data mark; A comparison for comparing and comparing the torso position identification code composed of the necessary data mark imaged in this imaging step with the previously set and stored torso position identification code,
A method for mounting and confirming a printing plate, comprising the steps of: (F). After operating the printing press, remove the printing plate at a desired position on the plate cylinder on which the printing plate with the data mark is attached, and replace the printing plate with the new data mark with a new printing plate. Is attached to a desired position on the plate cylinder through the above-described steps (A) to (D), and a cylinder position identification code of the attached plate is input and stored in advance. 6. A method for mounting and confirming a printing plate according to claim 5, further comprising a step of comparing at least the cylinder position identification code of the setting and collating. 7. When a data mark is picked up by the image pickup means for comparison in the image pickup step (D), the color component of the object plane of the printing plate is absorbed or transmitted by a filter provided in the image pickup means for comparison. 6. The method of mounting and confirming a printing plate according to claim 5, wherein: 8. In the printing step (B), an identification area between the identification areas on which the start mark and the end mark are printed is appropriately divided, and a mounting position is set in the identification area between the divided identification areas. 6. The printing apparatus according to claim 5, wherein the identification mark is printed with an ink having a color different from the color of the image area or the non-image area, and a space area is provided before and after the identification area of the mounting position identification mark. How to attach and check the printing plate. 9. In the printing step (B), a space area is provided outside the identification area on which the start mark is printed, and a discard mark is printed on the identification area defined outside the space area. 9. The method for mounting and confirming a printing plate according to claim 5, 6, 7, or 8. 10. In the printing step (B), a character information identification area composed of an appropriate number of digits is defined adjacent to the data identification area defined at a desired position on the printing plate. 10. The printing plate mounting / confirming method according to claim 5, wherein character information is printed in the character information identification area. 11. A printing plate mounting / confirming apparatus for mounting and checking an appropriate number of printing plates on a plate cylinder of a printing press. A higher-level control device having a cylinder position identification code and a memory for preliminarily inputting and storing a set cylinder position identification code including a mounting cylinder position in each plate; (B). A control device for a printing device controlled based on the cylinder position identification code from the cylinder position identification code / memory; (C). Among the data identification areas partitioned at desired positions on the printing plate image plane designated by the control of the printing apparatus control device, at least an ink having a color different from the color of the printing area or the non-printing area is used. A printing device that prints a start mark on the identification area on one side end, an end mark on the identification area on the other side end, and a data mark on an identification area between the identification area on which the start mark and the end mark are printed, (D). The printing apparatus mounts an appropriate number of the plates on the plate cylinder based on the cylinder position identification code of a necessary data mark printed on the printing plate surface, and prints the plate mounted on the plate cylinder. (E) an imaging means for collation for imaging the body position identification code printed on the object plane; The torso position identification code imaged by the matching imaging means and the torso position identification code provided in the higher-level control device
And a comparing / collating means provided in a higher-level control device for comparing and collating with a set cylinder position identification code previously stored in a memory. (F). The trunk position identification code is corrected based on a straight line connecting the start mark and the end mark imaged by the image capturing means for comparison, and the higher-level control device corrects the correction value to compare the correction value with the set trunk position identification code. The printing plate mounting / checking device according to claim 11, further comprising a device. (G). A sensor for starting reading of an identification code of a printing plate mounted on a plate cylinder of a printing press; (H). 12. The mounting / confirmation of the printing plate according to claim 10, further comprising: a shutter provided in the image capturing means for collation which operates based on the start information read by the identification code reading start sensor. apparatus. 14. The plate mounting / checking device according to claim 11, wherein the collating imaging means is provided with a filter that absorbs or transmits a color component of an image plane of the plate.