JPH0453749A - Device for converting data for regulating ink key opening degree - Google Patents

Abstract

PURPOSE:To enable data on an ink key opening degree in a printing machine to be used in common for other types of printing machines having the same code format of data on a pattern-areal ratio by making it possible to regulate the ink key opening degree of a second printing machine on the basis of the pattern-areal ratio data for a first printing machine. CONSTITUTION:A converting unit 61 fetches thereinto the code format of data on a pattern-areal ratio, which is used for the ink preset device of a first printing machine that actually performs printing, and data on the number of a second printing machine having an ink preset device 200, whose code format is the same as that of the first printing machine. The converting unit also reads pattern-areal ratio data from a RAM 51 on the basis of a predetermined number data variation program fetched from an ethernal memory 62 and converts the number data on the first printing machine, which are recorded in the pattern- areal ratio data, into the number data on the second printing machine 300. The pattern-areal data written in a magnetic card 81 is converted into ink key opening degree data, and the ink key opening degree divided for the printing machine 300 is preset.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention provides data for adjusting the ink key opening for presetting the ink supply amount in a printing press before printing starts, such as image area ratio data of a printing plate. Alternatively, the present invention relates to a device for converting ink key opening data into ink key opening adjustment data for another printing press of the same model.

[Conventional technology] In recent years, in order to improve work efficiency and stabilize quality in offset printing, the opening degree of the divided ink fountains has been automatically adjusted based on measurement data such as the image area ratio of the printing plate without manual intervention. An ink preset system has been developed that allows for precise adjustment.

According to one example of such a system, a printing plate is illuminated with an appropriate light source (for example, a special fluorescent lamp, a laser, etc.), and the amount of reflected light from the printing plate is received by a photoelectric conversion device such as a photodiode. It is converted into an electrical signal corresponding to the amount, and based on this signal, the area ratio of the printed area is calculated for each ink key classification. Then, by outputting the area ratio to a desired information recording medium (for example, a magnetic card, etc.) and reading the information recording medium with the ink presetting device of the printing press, the area ratio of each ink key is converted to the opening value of that ink key. , which automatically adjusts each ink key.

[Problem to be solved by the invention] In such a system, the image area ratio data is recorded on a magnetic card, etc. on which the image area ratio data is recorded, based on a code format compatible with the printing machine used. Additionally, printing press individual number data for identifying the printing press is also recorded. This is because even if the printing presses are of the same model, the ink key opening data based on the image area ratio data will vary depending on each printing press due to the age of use, manufacturing tolerances, etc. In order to avoid setting the ink key opening degree data obtained by converting the image area ratio data in the machine, identification data for identifying the relevant printing machine is added along with the measurement of the image area ratio. For that reason,
Even if the printing machine is of the same model, the image area ratio data obtained by determining the image area ratio of the printing plate cannot be used in the ink presetting device for other printing machines, and if the printing machine is changed, Regarding the printing press, it was necessary to separately measure the image area ratio of the printing plate using a printing plate image area ratio device to obtain image area ratio data. Printing factories often have printers of the same model, and printing may be performed using the same model of printer in case of machine trouble or to ensure efficient operation of each printer, but as mentioned above. Even if the models were of the same type, data compatibility could not be obtained. For this reason, the above-mentioned 1 (Fl) setting of the printing plate is sometimes omitted and the ink key is adjusted based on the intuition of the printing operator, and as a result, the ink preset system cannot be fully utilized.

The present invention was made in order to deal with the above-mentioned situation, and it is possible to share the already obtained ink key opening data of the printing press among printing press models with the same code format of the image area ratio data. The purpose of this is to make full use of the ink preset system.

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

A first conversion device according to the present invention provides data identifying a first printing press that is recorded in a part of pattern area ratio data for a first printing press output from a printing plate pattern area ratio measurement device. The printing apparatus further includes a mechanism for converting the information into data specifying a second printing press of the same type as the printing press.

A second conversion device according to the present invention is configured to provide data specifying a first printing press that is recorded in a part of the pattern area ratio data for the first printing press that is output from the printing plate pattern area ratio measuring device. into data specifying a second printing press of the same type as the printing press, and a mechanism for converting the image area ratio data into ink key opening data for the second printing press. Furthermore, it is provided.

The third conversion device according to the present invention converts data specifying the first printing press recorded in a part of the ink key opening data for the first printing press converted from the image area ratio data.
The invention further includes a mechanism for converting the ink key opening data into data specifying a second printing machine of the same type as the printing machine, and for restoring the ink key opening data to the original pattern area ratio data.

The fourth conversion device according to the present invention converts data specifying the first printing press recorded in a part of the ink key opening data for the first printing press converted from the image area ratio data.
At the same time, the ink key opening degree data is converted into data specifying a second printing press of the same type as the printing press, and the ink key opening data is restored to the original pattern area ratio data, and this pattern area ratio data is used for the second printing. The invention further includes a lock mechanism for converting into ink key opening data for the machine.

[Operation] The device of the present invention transfers the image area ratio data or ink key opening data for the first printing press to the image area ratio data or ink key opening data of the second printing press whose code format of the image area ratio data is the same as that of the first printing press. Since it can be converted into image area ratio data or ink key opening data, it becomes possible to adjust the ink key opening of the second printing press using the data for the first printing press.

[Example] Hereinafter, the present invention will be described in detail according to the flow diagram of FIG. 1 showing an example of a conversion device according to the present invention.

In the known printing plate pattern area ratio measuring device 1, the printing plate is irradiated with light and the amount of reflected light is received by a photoelectric conversion device such as a photodiode, thereby measuring the area ratio of the printing plate (image area). Measure for each ink key classification of the printing press to which you plan to install. Then, the picture area ratio data including data such as the printing model, the number of ink key pitches, colors, etc. is recorded on an information recording medium such as the magnetic card 21.

Magnetic card 2 on which such picture area ratio data is recorded
1, number data (in this case, the number data of the first printing machine) is recorded as data for identifying the printing press, and the recorded contents are read by the input device of the apparatus of the present invention, in this case, the card reader 41. are read and stored in the designated address of the RAM 51 in order via the interface 42 (.

The output form of the picture area ratio data from the picture area ratio measuring device 1 is not the magnetic card 21 as described above, but other recording media such as perforated tape or floppy disk, or if online, a corresponding reading device, interface, etc. All you have to do is set it up.

The conversion unit 61 converts the printing press manufacturer input from the keyboard 63 and the ink printer whose code format is the same as the code format of the image area ratio data used in the ink presetting device of the first printing press that actually prints. At the same time as reading the number data of the printing press (here, referred to as the second printing press) equipped with the device 200, the picture area ratio data is read from the RAM 51 by a predetermined number data conversion program taken from the external memory 62, and the picture area ratio data is read from the RAM 51. The number data of the first printing press written in the area ratio data is changed to the number data of the second printing press 300 that actually performs printing.

Furthermore, the image area ratio data after conversion can be obtained from interface 7.
1, the ink presetting device of the printing press 300! 20
The information is placed on an information transmission means suitable for the input means of 0. In the embodiment shown in the drawings, this information transmission means is a magnetic card written by a card writer 72, but is not limited to this. The image area ratio data written on the magnetic card 81 is input to the ink presetting device 200 and converted to ink key opening data, and this data is input to the ink key remote control device of the ink presetting device 200 to divide the printing press 300. The opening degree of the ink key is preset.

In addition, in the processing mode of the picture area ratio data, in addition to changing the number data specifying the printing press, the converting unit 61 converts the above picture area ratio data into the external memory 62 into a code for the second printing machine, that is, the printing machine 300. It is also possible to save an ink key opening degree data conversion program for converting into ink key opening degree data in the format and execute it to convert the picture area ratio data to ink key opening degree data and output it. In this case, the ink key opening degree data is loaded onto an information transmission means suitable for manual means in the simple presetting device 100, inputted to the simple brisé gutter device 100, and the divided ink key opening degrees of the printing press 300 are preset. Ru.

The device of the present invention is also configured to process data that has already been converted from picture area ratio data to ink key opening data.

As shown in FIG. 1, a converting device 31 for converting pattern area ratio data that converts pattern area ratio data measured by the pattern area ratio measuring device 1 into ink key opening data adapted to each printing press is known. It is. In this type of conversion device 31, the converted ink key opening data is generally written on the magnetic card 21'. In such a case, the present invention device 1
When the value is 0, the ink key opening data is processed instead of the picture area ratio data.

The magnetic card 21- further records printing machine individual number data that identifies the printing machine. This is because, even for the same model, the ink key opening data based on the same image area ratio data will vary depending on each printing machine depending on the number of years of use, manufacturing tolerances, etc. This is to prevent it from being used accidentally with other printing machines.

In the bag W110 of the present invention, the magnetic card 21' on which the ink key opening data as described above is recorded is read by the card reader 41, and is stored in a designated address of the RAM 51 in an orderly manner via the interface 42.

The output form of the ink key opening degree data from the image area ratio data converter W131 can be processed in the bag [10 of the present invention] even in forms other than the magnetic card 21'. The output form of the ink key opening data is not the magnetic card 21',
Other recording media such as perforated tape or floppy disks, or if online, a corresponding reading device, interface, etc. may be provided.

In the conversion unit 61, the manufacturer of the printing press manually entered from the keyboard 63, and the ink presetting device whose code format is the same as the code format of the image area ratio data used in the ink presetting device of the first printing press that actually prints. A conversion program that retrieves the number data of a printing press equipped with a 200 (in this case, the second printing press) and recovers the picture area ratio data taken from the external memory 62 reads the data from the RAM 51 and sets the ink key. A second printing step in which image area ratio data is recovered from the opening degree data, and the number data of the first printing machine written in the image area ratio data is actually printed using a number data conversion program imported from the external memory 62. Convert to number data of machine 300.

Furthermore, the image area ratio data after conversion is displayed in the interface 71.
via the ink presetting device 200 of the printing press 300
The information is placed on an information transmission means suitable for the input means.

In the embodiment shown in the drawings, this information transmission means is a magnetic card written by a card writer 72, but is not limited to this. The image area ratio data written on the magnetic card 81 is input to the ink preset device 200 and converted to ink key opening data, and this data is input to the ink key remote control device of the ink preset device [200] to control the printing press 300. The opening degrees of the divided ink keys are preset.

Note that, as described above, the number data for specifying the printing press may be converted and output as pattern area ratio data, but the converting section 61 of the apparatus of the present invention stores the above-mentioned pattern in the external memory 62. An ink key opening data conversion program that converts the area ratio data into ink key opening data in a code format for the second printing machine, that is, the printing press 300, is saved and executed, and the image area ratio data is converted to the ink key opening data. It is also possible to convert and output opening degree data. In this case, the ink key opening data is stored in the simple preset device 1. An information transmission means of a form suitable for the input means of the OO, in the illustrated embodiment, is placed on a magnetic card written by the card writer 72, inputted into the simple presetting device 100, and opened to the divided ink key of the printing press 300. degree is preset.

Note that the conversion device shown in FIG. 1 can be configured using a microprocessor.

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

[Effects of the Invention] According to the ink key opening adjustment data conversion device of the present invention, the data specifying the first printing press to be used, which is set in the picture area ratio data or the ink key opening data, can be converted into In order to convert the image area ratio data or ink key opening data that was exclusive to the first printing machine into data that specifies the second printing machine, which has the same code format of the image area ratio data used in the second printing machine, It can now be applied to printing presses. In other words, if you measure the image area ratio once for the same printing plate, you can measure the image area ratio of each printing plate as long as you use a printing machine with the same code format for the image area ratio data. This eliminates the need for simultaneous printing with multiple printing machines, and eliminates the need to re-adjust the image area ratio or 11FJ setting when changing printing machines, making it possible to quickly eliminate confusion caused by changing printing machines. It is possible to improve work efficiency and reduce work burden.

[Brief explanation of drawings]

FIG. 1 is a flow diagram showing a preferred embodiment of the conversion apparatus according to the present invention. l...Picture area ratio measuring device, 51...RAM. 61... Conversion unit, 62... External memory, 63...
Keyboard, 100...Component presetting device, 200
...Ink presetting device, 300...Printing machine applicant's agent Patent attorney Takehiko Suzue

Claims (4)

[Claims] (1) The first image area ratio data recorded in part of the image area ratio data for the first printing machine output from the printing plate image area ratio measuring device
The data identifying the printing machine is transferred to a second printer of the same type as the printing machine.
is equipped with a mechanism for converting into data specifying the printing press, and the pattern area ratio data for the first printing press is used to convert the data to specify the printing press for the second printing press.
An apparatus for converting data for adjusting the opening of an ink key, characterized in that the opening of the ink key of a printing press can be adjusted. (2) The converting device according to claim (1), further comprising a mechanism for converting the picture area ratio data into ink key opening data for the second printing press. (3) Data specifying the first printing press recorded in part of the ink key opening data for the first printing press converted from the pattern area ratio data is transferred to the second printing press of the same model as the first printing press. The apparatus is equipped with a mechanism for converting the ink key opening data into data specifying the printing press, as well as recovering the ink key opening data to the original pattern area ratio data. 2. A converting device for data for adjusting an ink key opening, characterized in that the ink key opening of a printing press can be adjusted. (4) The conversion device according to claim (3), further comprising a mechanism for converting the recovered picture area ratio data into ink key opening data for the second printing press.