JP3314635B2 - Display device used for plate mounting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a display device for use in printing plate lock-how that allowed to attach the appropriate number of the printing plate on the plate cylinder of the printing press.

[0002]

2. Description of the Related Art Conventionally, in newspaper printing, one or two folding machines and about eight to ten rotary machines are connected and combined.
One unit (usually, one set) of rotary press trains 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 having different page layouts are allocated to the newspaper distribution areas 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 mounts a large number of printing plates for each rotary press, there is a fear that the printing plates may be erroneously mounted.

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 of the operator immediately after the start of printing. Recently, due to the rationalization of personnel, the work volume of one worker has increased and the working density has been increased, and the number of newspaper pages and the printing speed have been increased, so that the paper inspection work has reached its limit. . 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.

[0005]

In the method in which the erroneous mounting of the printing plate is detected based on the judgment of the operator, the possibility of the erroneous mounting cannot be eliminated due to the misunderstanding of the operator. Also,
The paper inspection work itself is complicated, and the re-attachment of a printing plate that is found and erroneously mounted by the paper inspection work is more complicated. For this reason, it is strongly desired that erroneous mounting of a printing plate can be reliably detected without depending on the judgment of an operator and before starting printing.

Therefore, the present inventors have already proposed, for example, Japanese Patent Laid-Open No. 5-16938 as a printing plate erroneous mounting detection device capable of reliably detecting erroneous mounting of a printing plate. Intricate and not complete.

An object of the present invention is to substantially eliminate erroneous mounting when an operator mounts a specified printing plate on a plate cylinder before using a printing plate erroneous mounting detection device, and to mount the printing plate more securely than before. and to provide a display device for use on a printing plate mounting method was.

[0008]

According to a first aspect of the present invention, there is provided a display device for use in a printing plate mounting method according to the present invention. Before installing
A display device for displaying mounting cylinder position information on the plate cylinder on the back surface of the printing plate, the cylinder position reading a cylinder position identification code including mounting cylinder position information provided on a part of the back surface of the printing plate. Identification symbol reading means, a control device for the ink printer controlled based on the mounting cylinder position information read by the cylinder position identification code reading means, and a back surface of the printing plate designated by the control of the control device for the ink printer And an ink jet printer for printing and displaying the mounting cylinder position information with ink.

Therefore, the cylinder position identification symbol provided on a part of the back surface of the printing plate is read by the cylinder position identification symbol reading means. When the mounting cylinder position information of the read cylinder position identification code is sent to the control device for the ink printer, the control device for the ink printer is controlled and the ink printer is operated, so that the ink on the back of the plate is sent. The mounting cylinder position information is printed and displayed in a large size on the surface so as to be visible with ink.

Since the mounting cylinder position information printed and displayed on the back surface of the printing plate can be easily seen by an operator, when mounting the printing plate on the plate cylinder, erroneous mounting is almost eliminated, and a more reliable mounting than before can be achieved. Attached to. In addition, since it is displayed on the back surface, there is no adverse effect on the front surface. Further, by displaying the information on the back surface, the efficiency can be improved without the need to turn off the display again.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, a plate cylinder 1 of a rotary press in a printing press extends 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 3 (3P-A, 3P-B,
3P-C, 3P-D) are mounted by the worker. In addition, if necessary, near the plate cylinder 1, for example, on the lower side in FIG.
An engraving plate 5 engraved with 3P-B, 3P-C, and 3P-D is provided, and when the operator mounts the printing plate 3 on the printing plate 1, it serves to assist the collation so as to make sure that the printing plate 3 is correct. To do.

In order for the operator to mount the printing plate 3 (3P-A to 3P-D) without fail on the plurality of sectioned areas of the plate cylinder 1, the printing plate 3 is mounted on the back surface 3B of the printing plate 3 with a large ink. A display device 7 for printing and displaying the torso position information 3P-A to 3P-D is provided.

The display device 7 includes, for example, an ink jet printer 9 as an ink printer for printing and displaying the mounting cylinder position information 3P-A to 3P-D on the back surface 3B of the printing plate 3. For example, a control device 11 for an ink jet printer as a control device for an ink printer to be activated, and the mounting cylinder position information 3
Host controller 1 having plate cylinder management information / memory 13 storing plate cylinder management information including PA to 3P-D
5 is comprised.

The ink for causing the ink jet printer 9 to print and display the mounting cylinder position information 3P-A to 3P-D on the back surface 3B of each printing plate 3 is, for example, ink that does not affect printing in the printing process, that is, ink that is not printed. A hydrophilic ink is used. Specific examples of the ink are selected from those having the following compositions.

[0016]

Table 1 <Example 1> I. Acid Red 92 3 parts N-methyl-2-virolidone 3 parts Ethylene glycol 12.5 parts Purified water 81.1 parts Proxel GXL (Zeneca) 0.4 parts 100.0 parts <Example 2> Food color No. 106 (red) 3 parts Purified water 76.6 parts Glycerin 20.0 parts Proxel GXL (Zeneca) 0.4 parts 100.0 parts <Example 3> Direct Black 154 3 parts Glycerin 3 parts Triethylene glycol 6 parts Proxel GXL (Zeneca) 0. 3 parts Triethylene glycol monoethyl ether 2 parts Purified water 85.7 parts 100.0 parts

The above ink is dissolved in the fountain solution in the printing step. The composition of the dampening water is water 9
9.5% and 0.5% nonionic surfactant.

According to the above configuration, when the printing plate 3 is conveyed to be mounted on the designated plate cylinder 1 of the rotary press, it is stored in the plate cylinder management information / memory 13 provided in the host controller 15. Mounting cylinder position information 3P in the plate cylinder management information
For example, 3P-A is selected from -A to 3P-D, and the signal is transferred to the control device 11 for the ink jet printer. Upon receiving the signal, the ink jet printer controller 11 activates the ink jet printer 9 to visually recognize the back surface 3B of the printing plate 3 which is large, and the mounting cylinder position information 3P-A is obtained by the ink jet printer 9. Is printed and displayed with the above-described ink.

The printing plate 3 on which the mounting cylinder position information 3PA is printed is displayed on the leftmost side of the plate cylinder 1 by an operator. When the operator mounts the printing plate 3 on the plate cylinder 1, the mounting cylinder position information 3P-A is visually and largely printed on the back surface 3B of the printing plate 3, so that the mounting cylinder position information 3P-A is displayed. Specified plate cylinder 1 while carefully checking A
Can be attached to the designated position.

Therefore, erroneous mounting can be almost eliminated, and mounting can be performed more securely than in the past. Moreover, since the engraving plate 5 engraved with the mounting cylinder position information 3P-A to 3P-D is provided below the plate cylinder 1, this engraving plate 5 is provided.
If you attach while watching, you can further eliminate erroneous attachment.

When the required number of printing plates 3 are mounted on the plate cylinder 1 in a required number, the printing plates 3 are successively arranged in the manner described above.
Mounting body position information 3P-B, which is printed and displayed on the back surface 3B of
The user can mount the plate cylinder 1 at a designated location while watching the 3P-C and 3P-D.

The operator can easily perform the mounting operation more easily than the conventional one and can mount it in a short time, so that the operability can be improved. Further, by displaying the information on the back surface, it is not necessary to turn off the display again, and the efficiency can be improved. Since no information is displayed on the surface, there is no adverse effect.

FIG. 2 shows an example of another embodiment instead of FIG. In FIG. 2, a bar code 17 is attached as a mounting cylinder position information to a part of the back surface 3B of the printing plate 3 conveyed, for example, at the upper right part. A bar code reader 19 as reading means for reading the bar code 17 is provided on the upper side.
The signal read at 9 is transmitted to the control device 11 for the ink jet printer.

According to the above configuration, the bar code 17 attached to the back surface 3B of the printing plate 3 is read by the bar code reader 19, and the signal is transferred to the control device 11 for the ink jet printer. The ink jet printer control device 11 operates the ink jet printer 9 based on the signal, and prints and displays the mounting cylinder position information 3P-A to 3P-D on the back surface 3B of the printing plate 3 with ink.

Therefore, the printing plate 3 by the subsequent worker
The method and the effect of mounting on the plate cylinder 1 are almost the same as those of the above-described embodiment, and therefore the description is omitted.

Characters or symbols other than the barcode 19 attached to a part of the back surface of the printing plate 3 may be used.

The present invention is not limited to the above-described embodiment, but can be implemented in other modes by making appropriate changes. In the example of the embodiment, hydrophilic ink is used as the ink, and an example is described in which an ink jet printer is used as the ink printer.However, any ink other than the hydrophilic ink may be used. Alternatively, an ink printer may use a dry printing printer (dry heat, wet type) other than the ink jet printer. Therefore, it is sufficient that the mounting position information is printed and displayed on the back surface 3B of the printing plate 3 in a visually large manner, and the ink does not have to disappear later.

[0028]

As can be understood from the above embodiment, according to the first aspect of the present invention, the body position identification code provided on a part of the back surface of the printing plate is changed to the body position identification code. It is read by the reading means. When the mounting cylinder position information of the read cylinder position identification code is sent to the control device for the ink printer, the control device for the ink printer is controlled, the ink printer is operated, and the back surface of the printing plate is sent. ,
With the ink, the mounting cylinder position information can be printed and displayed so as to be visually large.

Since the mounting cylinder position information printed and displayed on the back side of the printing plate can be easily seen by the operator, when mounting the printing plate on the plate cylinder, erroneous mounting is almost eliminated, and the mounting plate is more reliably than before. Can be worn. Also, since the information is displayed on the back surface, there is no adverse effect on the front surface. Further, by displaying the information on the back surface, the efficiency can be improved without having to erase the display again.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of an example of an embodiment embodying the present invention.

FIG. 2 is a conceptual diagram of another example of the display device of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 plate cylinder 3 printing plate 3B back surface 3P-A to 3P-D mounting cylinder position information 5 marking plate 7 display device 9 ink jet printer (ink printer) 11 control device for ink jet printer (control device for ink printer) 13 plate cylinder Management information / memory 15 Host controller 17 Barcode 19 Barcode reader

Claims (1)

(57) [Claims] 1. A display device for displaying mounting cylinder position information on said plate cylinder on a back surface of said plate before mounting an appropriate number of plates on a plate cylinder of a printing press, said display device comprising: Body position identification code reading means for reading a body position identification code including mounting body position information provided on a part of the back surface, and ink controlled based on the mounting body position information read by the body position identification code reading means. A printing plate mounting method, comprising: a printer control device; and an ink jet printer for printing and displaying mounting cylinder position information with ink on the back surface of the printing plate designated by the control of the ink printer control device. Use
Display device to use .