JP3049660B2 - Conversion device for ink key opening adjustment data - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to data for adjusting an ink key opening degree for presetting an ink supply amount in a printing press before starting printing, for example, a pattern area ratio data of a printing plate. Alternatively, the present invention relates to a method of converting ink key opening data into ink key opening adjustment data for another printing press of the same model.

[Prior art] In recent years, in order to improve the efficiency of work volume in offset printing and stabilize the quality, the degree of opening of the divided ink fountains is automatically determined based on measurement data such as the pattern area ratio of a printing plate without manual operation. An ink preset system has been developed to adjust the temperature.

According to one example of such a system, the printing plate is illuminated by an appropriate light source (for example, a special fluorescent lamp, a laser, or the like), and the amount of light reflected from the printing plate is received by a photoelectric conversion device such as a photodiode. It is converted into an electric signal corresponding to the amount, and the area ratio of the image portion is calculated for each ink key section based on this signal.
Then, the area ratio is output to a desired information recording medium, for example, a magnetic card, and the information recording medium is read by an ink presetting device of a printing press to convert the area ratio of each ink key into an opening value of the ink key. This automatically adjusts each ink key.

[Problem to be Solved by the Invention] In such a system, the pattern area ratio data is recorded on a magnetic card or the like in which the pattern area ratio data is recorded based on a code format corresponding to a printing machine to be used. At the same time, the printing machine specific number data for specifying the printing machine is recorded. This is because even if the printing presses are the same model, the ink key opening data based on the pattern area ratio data will differ slightly for each printing press due to the age of use, manufacturing tolerances, etc. In this example, ink key opening degree data obtained by converting the pattern area ratio data is set, and identification data for specifying the corresponding printing machine is added together with the measurement of the pattern area ratio so as not to make a mistake. For this reason, even with the same type of printing press, the pattern area ratio data obtained by measuring the pattern area ratio of the printing plate cannot be used for the ink presetting device for other printing presses. It was necessary to separately measure the pattern area ratio of the printing plate of the printing press using a plate pattern area ratio device to obtain pattern area ratio data. Printing plants are often equipped with the same type of printing press.In order to operate each printing press efficiently or trouble with the machine, printing may be performed with the same type of printing press. However, even with the same model, data compatibility could not be obtained. For this reason, the measurement of the printing plate as described above may be omitted, and the ink key may be adjusted according to the intuition of the printing operator, and as a result, the ink preset system cannot be fully utilized.

The present invention has been made to cope with the above-described circumstances, and it is possible to share ink key opening degree data of a printing press that has already been obtained with a printing press model in which the code format of the pattern area ratio data is the same. By doing so, the purpose is to make full use of the ink preset system.

[Means for Solving the Problems] The above object is achieved by the following method of converting ink key opening adjustment data according to the present invention.

In the conversion method according to the first aspect of the present invention, data for specifying a printing press is provided in a part of output data output from the plate image area ratio measuring device, and the data is used for another printing press of the same model based on the data. In the method of converting ink key opening degree adjustment data for preventing incorrect use, the method described above, wherein a part of the first printing press pattern area ratio data output from the plate pattern area ratio measuring device is recorded. First
Converting the data specifying the first printing press into the data specifying the second printing press of the same model having the same code format of the pattern area ratio data as the first printing press. And converting the image pattern area ratio data into ink key opening adjustment data for a second printing press.

According to the conversion method of claim 2 of the present invention, data for specifying a printing press is provided in a part of output data output from the printing plate pattern area ratio measuring device, and the data is used for another printing press of the same model based on the data. In the method of converting ink key opening adjustment data for preventing use by mistake, the first printing press ink key opening data recorded on a part of the first printing press ink key opening data converted from the plate image area ratio data. Is converted to data specifying a second printing press of the same model having the same code format as the printing press, and the ink key opening data is restored to the original pattern area ratio data. And converting the data into ink key opening data for a second printing press.

[Operation] The apparatus of the present invention converts the pattern area ratio data or ink key opening degree data for the first printing press into the second printing press having the same pattern format as the first printing press. Since the data can be converted into the picture area ratio data or the ink key opening data, the ink key opening of the second printing press can be adjusted by the data for the first printing press.

[Embodiment] Hereinafter, the present invention will be described in detail with reference to the flowchart of FIG. 1 showing an embodiment of the conversion method according to the present invention.

The known plate image area ratio measuring device 1 irradiates light to the plate and receives the reflected light amount to a photoelectric conversion device such as a photodiode, thereby determining the area ratio of the image (image portion) to the plate. Is measured for each ink key category of the model of the printing machine to be installed. Then, the pattern area ratio data including the data such as the printing model, the ink key pitch number, and the color is recorded on an information recording medium such as the magnetic card 21.

Magnetic card on which such pattern area ratio data is recorded
Number data 21 (here, number data of the first printing press) is recorded as data specifying the printing press in 21. An input device of the device for performing the conversion method of the present invention, in this case, Reads the recorded content with a card reader 41 and stores the data in a specified address in a RAM 51 in order through an interface 42.

The output form of the pattern area ratio data from the pattern area ratio measurement device 1 is not the magnetic card 21 as described above, but another recording medium such as a perforated tape, a floppy disk, or a reading device, an interface, etc. corresponding thereto when online. May be provided.

In the conversion unit 61, the maker of the printing press inputted from the keyboard 63, the ink presetting device having the same code format as the code format of the picture area ratio data used in the ink presetting device of the first printing press which actually performs printing. In addition to fetching the number data of a printing machine (herein, the second printing machine) provided with the RAM 200, the RAM 5 is stored in accordance with a predetermined number data conversion program fetched from the external memory 62.
The pattern area ratio data is read from 1 and the number data of the first printing press described in the pattern area ratio data is changed to the number data of the second printing press 300 that actually performs printing.

Furthermore, the converted pattern area ratio data can be
Via 71, it is mounted on an information transmission means in a form suitable for the input means of the ink presetting device 200 of the printing press 300. This information transmitting means is a magnetic card written by the card writer 72 in the embodiment of the drawings, but is not limited to this. The pattern area ratio data written on the magnetic card 81 is input to the ink presetting device 200 and converted into ink key opening data. Based on this data, the data is input to the ink key remote control device of the ink presetting device 200 to divide the printing press 300. The preset opening of the ink key is preset.

In the pattern area ratio data processing mode, the conversion unit 61 stores the pattern area ratio data in the external memory 62 in the second printing machine, that is, the code for the printing machine 300, together with the change of the number data specifying the printing machine. It is also possible to store an ink key opening data conversion program for converting into ink key opening data in a format, execute the program, and convert and output the picture area ratio data into ink key opening data. In this case, the ink key opening degree data is placed on information transmitting means in a form suitable for the input means of the simple preset device 100, input to the simple preset device 100, and
00 divided ink key openings are preset.

The conversion method apparatus of the present invention is also configured to perform processing of data already converted from the pattern area ratio data into the ink key opening degree data.

As shown in FIG. 1, a pattern area ratio measuring device 1
There is a known image area ratio data conversion device 31 for converting the image area ratio data measured in the above into ink key opening degree data adapted to each printing press. In this type of conversion device 31,
The converted ink key opening data is generally stored on a magnetic card 2.
Written in 1 '. In such a case, in the device 10 for implementing the conversion method of the present invention, not the pattern area ratio data,
The ink key opening data will be processed.

The magnetic card 21 'further records printing machine-specific number data for specifying the printing machine. This is because, even with the same model, the ink key opening data based on the same pattern area ratio data differs slightly for each printing press due to the age of use, manufacturing tolerances, etc. In order to prevent the printer from being used by mistake.

In the apparatus 10 for performing the conversion method of the present invention, the magnetic card on which the ink key opening degree data as described above is recorded
21 'is read by the card reader 41, and further stored in the designated address of the RAM 51 via the interface 42 in order.

The output form of the ink key opening degree data from the picture area ratio data conversion device 31 is not limited to the magnetic card 21 '.
The conversion method of the present invention can be processed in the execution device 10. Output form of ink key opening data is magnetic card 21 '
Instead, another recording medium such as a perforated tape or a floppy disk, or a reading device and an interface corresponding to the online recording medium may be provided.

In the conversion unit 61, the maker of the printing press inputted from the keyboard 63, the ink presetting device having the same code format as the code format of the picture area ratio data used in the ink presetting device of the first printing press which actually performs printing. The conversion program which takes in the number data of the printing machine equipped with 200 (here, the second printing machine) and recovers the picture area ratio data taken in from the external memory 62 reads the data from the RAM 51 and prints the ink key. The opening area data is restored to the pattern area ratio data, and the external memory 62
The number data of the first printing press described in the picture area ratio data is converted into the number data of the second printing press 300 which actually performs printing by the number data conversion program taken in from.

Further, the converted image area ratio data is supplied to the interface 71.
The information is placed on the information transmitting means in a form suitable for the input means of the ink preset device 200 of the printing press 300 via the printer. This information transmitting means is a magnetic card written by the card writer 72 in the embodiment of the drawings, but is not limited to this. The pattern area ratio data written on the magnetic card 81 is input to the ink presetting device 200 and converted into ink key opening data. Based on this data, the data is input to the ink key remote control device of the ink presetting device 200 to divide the printing press 300. The preset opening of the ink key is preset.

As described above, the number data specifying the printing press may be converted as the pattern area ratio data and output as the pattern area ratio data, but the conversion unit 61 of the apparatus for performing the conversion method of the present invention may use the external processing. An ink key opening data conversion program for converting the image area ratio data into the ink key opening data in the code format for the second printing press, that is, the printing press 300, is stored in the memory 62, and this is executed to execute the pattern printing. It is also possible to convert and output the area ratio data into ink key opening degree data. In this case, the ink key opening degree data is placed on an information transmitting means in a form suitable for the input means of the simple preset device 100, and in the illustrated embodiment, is placed on a magnetic card written by a card writer 72 and input to the simple preset device 100. The opening of the divided ink keys of the printing press 300 is preset.

The conversion device shown in FIG. 1 can be configured using a microprocessor.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

[Effect of the Invention] According to the method for converting ink key opening adjustment data according to the present invention, the data specifying the first printing press to be used, which is set in the pattern area ratio data or the ink key opening data, In order to convert the image area ratio data used and the code format of the used image area ratio data into the data specifying the second printing press, the pattern area ratio data or the ink key opening degree data dedicated to the first printing press are converted to the second printing press. It can be used for printing presses. That is, once the pattern area ratio is measured for the same printing plate, the measurement of the pattern area ratio of each printing plate is performed as long as a printing machine having the same code format of the pattern area ratio data to be used is used. Is unnecessary, and simultaneous printing can be performed by multiple printing presses, and the re-measurement of the pattern area ratio due to the change of the printing press is not necessary, so it is possible to respond immediately in case of confusion such as changing the printing press It is possible to improve work efficiency and reduce work load.

[Brief description of the drawings]

FIG. 1 is a flow diagram showing a preferred embodiment of an apparatus for implementing the conversion method according to the present invention. 1 ... Pattern area ratio measurement device, 51 ... RAM, 61 ... Conversion unit, 62 ... External memory, 63 ... Keyboard, 100 ... Simple preset device, 200 ... Ink preset device, 300
……Printer

Claims (2)

(57) [Claims] An output data output from a plate image area ratio measuring apparatus is provided with data for specifying a printing press as part of the output data, and can be used only by a printing press that matches the specified data. In a method of converting ink key opening degree adjustment data for preventing use by another model of a printing press by mistake, one of the first printing press pattern area ratio data output from a plate pattern area ratio measuring device is provided. Of the first printing press recorded in the printer unit is converted into data specifying a second printing press of the same model having the same code format of the picture area ratio data as that of the first printing press. And converting the picture area ratio data for the first printing press into ink key opening adjustment data for the second printing press. 2. A printing press specifying data is provided in a part of output data outputted from a printing plate picture area ratio measuring apparatus, and can be used only by a printing press which matches the specifying data. In a method of converting ink key opening adjustment data for preventing use by another model of a printing press by mistake, a part of ink key opening data for a first printing press converted from printing plate image area ratio data Is converted into data specifying a second printing press of the same model having the same code format as the printing press, and the ink key opening data is used as the basis. Recovering the image area ratio data of the above (2) and converting it into ink key opening data for a second printing press.