阅读说明：本技术 一种数码印刷分组上色节墨印刷方法 (Digital printing grouping coloring and ink saving printing method ) 是由 黄春华 于 2021-07-23 设计创作，主要内容包括：本发明公开了一种数码印刷分组上色节墨印刷方法,包括如下步骤：S1：在数码印刷机的控制端口输入操作程序；S2：数码印刷机中给墨机构的色彩传墨辊与墨斗辊接触；S3：通过采集机构对印刷后的油墨纸张进行油墨数据采集,数据采集步骤：采集机构扫描采集喷墨印刷图像,采集机构每隔5s对印刷图像进行采集；利用油墨检测机构对纸张油墨含量的密度值进行检测分析：分析出的油墨含量密度值与印刷机内的设定值进行差值比较；S4：数码印刷机根据数据值对校样印刷重新预置开关进行校正。本发明通过分析出的油墨含量密度值与印刷机内的设定值进行差值比较,超出设定差值外则调节机构减少油墨输出,避免油墨输出过多导致油墨的浪费。(The invention discloses a digital printing grouping coloring and ink saving printing method, which comprises the following steps: s1: inputting an operation program at a control port of the digital printer; s2: a color ink transfer roller of an ink feeding mechanism in the digital printing machine is contacted with an ink fountain roller; s3: carrying out ink data acquisition on the printed ink paper through an acquisition mechanism, wherein the data acquisition step comprises the following steps: the collecting mechanism scans and collects the ink-jet printing images, and collects the printing images every 5 seconds; and (3) detecting and analyzing the density value of the content of the printing ink of the paper by using a printing ink detection mechanism: comparing the analyzed content density value of the printing ink with a set value in a printing machine; s4: and the digital printer corrects the sample correction printing resetting switch according to the data value. According to the invention, the analyzed content density value of the printing ink is compared with the set value in the printing machine, and if the content density value of the printing ink exceeds the set difference value, the adjustment mechanism reduces the output of the printing ink, so that the waste of the printing ink caused by excessive output of the printing ink is avoided.)

1. A digital printing grouping coloring and ink saving printing method is characterized by comprising the following steps:

s1: inputting an operation program at a control port of the digital printer, and debugging a proof printing start switch and a proof printing resetting switch;

s2: the color ink distributing roller of the ink feeding mechanism in the digital printing machine is contacted with the ink fountain roller, the ink guide valve of the ink feeding mechanism is in an open state, the ink flowing speed is controlled by the adjusting mechanism, and the ink fountain roller performs ink printing on paper after the digital printing machine is started;

s3: carrying out ink data acquisition on the printed ink paper through an acquisition mechanism, and carrying out ink output adjustment, wherein the data acquisition step comprises the following steps:

(1) the collecting mechanism scans and collects the ink-jet printing image, collects the printing image every 5s and converts the printing image into a gray image;

(2) and (3) detecting and analyzing the density value of the content of the printing ink of the paper by using a printing ink detection mechanism:

(3) comparing the analyzed content density value of the printing ink with a set value in the printing machine, and reducing the output of the printing ink by the adjusting mechanism if the content density value of the printing ink exceeds the set difference value;

s4: and the digital printer corrects the sample correction printing resetting switch according to the data value.

2. A method for grouping coloring and ink-saving printing in digital printing according to claim 1, wherein the input operation program in S1 is operated by an encoder in the digital printer, and the program in the encoder can be modified and re-input during the printing process of the digital printer, and the control port can remotely control and input the encoder in the digital printer by connecting an external encoding mechanism through data.

3. A digital printing grouped coloring and ink saving printing method as claimed in claim 1, wherein the color ink transfer roller in S2 is arranged in each ink area of the digital printing machine, each ink area exists independently, inks of different colors do not contact with each other, each ink is stored independently, the contact area between the color ink transfer roller and the duct roller is regulated by a regulating mechanism, and the roller diameter of the color ink transfer roller is larger than that of the duct roller.

4. A digital printing grouped inking method according to claim 1, wherein the adjusting mechanism in S2 adjusts the position of the color transfer roller while adjusting the degree of opening of the ink guide valve.

5. A method of ink-saving printing on digital printing groups according to claim 1, wherein the ink output adjusting step in S3:

(1) the difference signal is transmitted into the adjusting mechanism, the difference signal data is compared with adjusting data in the adjusting mechanism, and when the difference data is within a safety value range, the adjusting mechanism does not adjust the printing ink;

(2) when the difference data is lower than the safety value, the adjusting mechanism controls the flow rate of the ink in the ink guide valve to be increased, and meanwhile, the contact area between the color ink transfer roller and the ink duct roller is increased, and the output of the ink is increased;

(3) when the difference data is higher than the safety value, the adjusting mechanism controls the flow rate of the ink in the ink guide valve to be reduced, and meanwhile, the contact area between the color ink transfer roller and the ink duct roller is reduced, and the output of the ink is reduced.

6. The method for ink-saving printing on digital printing groups according to claim 1, wherein in S3, the thickness of ink on the printed image is detected when the printed image is converted into a gray image, the density of ink of different colors is detected for the ink area of the gray image after the gray image is converted, and the detection result is compared with the density of ink of each color.

7. A method of saving ink in groups for digital printing according to claim 1, wherein said correction of the proof print resetting switch in S4 is adjusted based on the difference data, and the operating program in the digital printer is simultaneously modified based on the data when the proof print resetting switch is corrected.

Technical Field

The invention relates to the technical field of digital printing, in particular to a digital printing grouping coloring and ink saving printing method.

Background

The digital printing is also called short-edition printing or digital printing, and is different from the traditional printing in that the digital printing can be printed one by one, the data is variable, and the pictures and texts can be transmitted by various media, thereby greatly improving the commercial application range of digital imaging. Digital printing is a novel printing technology for printing a color printed matter by directly transmitting graphic and text information to a digital printing machine through a network by using a prepress system, and a printing cylinder made of photosensitive materials forms a graphic and text capable of absorbing ink or powdered ink after being subjected to photosensitive and then transfers the graphic and text onto printing materials such as paper and the like.

In the printing process, place the paper in the digital printing machine, digital printing machine starts the back, and the printing roller rotates and prints, gives black mechanism and carries printing ink to the printing roller on, on printing roller rotates the back with printing ink printing to the paper, the printing ink supply is too much can lead to the waste of printing ink when the printing, and the paper pattern of printout is too bright.

Disclosure of Invention

The invention provides a digital printing grouping coloring and ink saving printing method, which aims to solve the problem that excessive ink supply causes ink waste in the background technology.

The invention provides a digital printing grouping coloring and ink saving printing method, which comprises the following steps:

s1: inputting an operation program at a control port of the digital printer, and debugging a proof printing start switch and a proof printing resetting switch;

s2: the color ink distributing roller of the ink feeding mechanism in the digital printing machine is contacted with the ink fountain roller, the ink guide valve of the ink feeding mechanism is in an open state, the ink flowing speed is controlled by the adjusting mechanism, and the ink fountain roller performs ink printing on paper after the digital printing machine is started;

s3: carrying out ink data acquisition on the printed ink paper through an acquisition mechanism, and carrying out ink output adjustment, wherein the data acquisition step comprises the following steps:

(1) the collecting mechanism scans and collects the ink-jet printing image, collects the printing image every 5s and converts the printing image into a gray image;

(2) and (3) detecting and analyzing the density value of the content of the printing ink of the paper by using a printing ink detection mechanism:

(3) comparing the analyzed content density value of the printing ink with a set value in the printing machine, and reducing the output of the printing ink by the adjusting mechanism if the content density value of the printing ink exceeds the set difference value;

s4: and the digital printer corrects the sample correction printing resetting switch according to the data value.

Preferably, the input operation program in S1 is operated by an encoder in the digital printer, and the program in the encoder can be modified and re-input during the printing process of the digital printer, and the control port can be connected to an external encoding mechanism through data, so as to remotely control and input the encoder in the digital printer.

Preferably, in S2, the color ink transfer roller is disposed in each ink area of the digital printer, each ink area exists independently, inks of different colors do not contact with each other, each ink is stored independently, the contact area between the color ink transfer roller and the ink fountain roller is controlled by the adjusting mechanism, and the roller diameter of the color ink transfer roller is greater than that of the ink fountain roller.

Preferably, the adjusting mechanism in S2 may adjust the position of the color ink transfer roller and may adjust the opening degree of the ink guide valve.

Preferably, the ink output adjusting step in S3:

(1) the difference signal is transmitted into the adjusting mechanism, the difference signal data is compared with adjusting data in the adjusting mechanism, and when the difference data is within a safety value range, the adjusting mechanism does not adjust the printing ink;

(2) when the difference data is lower than the safety value, the adjusting mechanism controls the flow rate of the ink in the ink guide valve to be increased, and meanwhile, the contact area between the color ink transfer roller and the ink duct roller is increased, and the output of the ink is increased;

(3) when the difference data is higher than the safety value, the adjusting mechanism controls the flow rate of the ink in the ink guide valve to be reduced, and meanwhile, the contact area between the color ink transfer roller and the ink duct roller is reduced, and the output of the ink is reduced.

Preferably, in S3, the thickness of the ink on the printed image is detected when the printed image is converted into a gray scale image, the density of the ink of different colors is detected in the ink area of the gray scale image after the gray scale image is converted, and the detection result is compared with the density of the ink of each color.

Preferably, the correction of the proof printing resetting switch in S4 is performed by adjusting according to the difference data, and the operation program in the digital printer is simultaneously modified according to the data when the proof printing resetting switch is corrected.

The invention provides a digital printing grouping coloring and ink saving printing method, which has the advantages that:

the ink flowing speed is controlled by the adjusting mechanism, and the ink fountain roller performs ink printing on the paper after the digital printing machine is started; the collecting mechanism is used for collecting ink data of the printed ink paper, the analyzed content density value of the ink is compared with a set value in the printing machine in a difference mode, if the content density value of the ink exceeds the set difference value, the adjusting mechanism reduces the output of the ink, and the waste of the ink caused by excessive output of the ink is avoided.

Detailed Description

The invention is further illustrated by the following examples.

Example 1

The invention provides a digital printing grouping coloring and ink saving printing method, which comprises the following steps:

s1: inputting an operation program at a control port of the digital printer, debugging a proof printing start switch and a proof printing resetting switch, controlling the proof printing start switch and a key simultaneously, avoiding the digital printer from working due to the fact that the switch is touched in the detection process, improving the working safety performance of the digital printer, wherein the input operation program is operated by an encoder in the digital printer, meanwhile, the program in the encoder can be modified and input again in the printing process of the digital printer, a modification secret key needs to be input when the program in the encoder is modified and input again, the program in the encoder is prevented from being modified randomly, the program data in the encoder is protected, the control port can be connected with an external encoding mechanism through data, and the encoder in the digital printer can be controlled and input remotely;

s2: the color ink transfer roller of the ink supply mechanism in the digital printing machine is contacted with the ink fountain roller, the ink guide valve of the ink supply mechanism is in an open state, the ink flowing speed is controlled by the adjusting mechanism, the adjusting mechanism can adjust the position of the color ink transfer roller and regulate and control the contact area between the color ink transfer roller and the ink fountain roller so as to control the output quantity of the ink, simultaneously, the opening degree of the ink guide valve can be adjusted, the ink flowing quantity passing through the ink guide valve is controlled, the ink flowing quantity of the ink guide valve is reduced when the ink is output too much, the ink is saved, the waste of the ink is avoided, the ink fountain roller performs ink printing on paper after the digital printing machine is started, the color ink transfer roller is arranged in each ink area of the digital printing machine, each ink area independently exists, the inks of different colors are not contacted with each other, the color of the ink is prevented from being changed after the ink is contacted, and the printing quality is improved, each kind of ink is independently stored, the contact area between the color ink transfer roller and the ink fountain roller is regulated and controlled by the regulating mechanism, and the roller diameter of the color ink transfer roller is larger than that of the ink fountain roller;

s3: carry out printing ink data acquisition through gathering the mechanism to the printing ink paper after the printing, gather the density value of printing ink and the thickness value of printing ink to in control printing ink output, and carry out printing ink output and adjust, avoid printing ink output too much to lead to the waste of printing ink, the data acquisition step:

(1) the collecting mechanism scans and collects the ink-jet printing image, collects the printing image every 5s, converts the printing image into a gray image, detects the ink thickness on the printing image when the printing image is converted into the gray image, detects the ink density of different colors in the ink area of the gray image after the gray image is converted and generated, and compares the detection result with the ink density value of each color;

(2) detecting and analyzing the density value of the content of the paper ink by using an ink detection mechanism, detecting and analyzing the density value of the ink of each color, analyzing and comparing the density values of the inks of different colors with the density value of the same color:

(3) the analyzed content density value of the printing ink is compared with a set value in the printing machine by a difference value, the density value of the printing ink of each color is compared, and if the density value of the printing ink exceeds the set difference value, the regulating mechanism reduces the output of the printing ink;

s4: the digital printer corrects the proof printing resetting switch according to the data value, the correction of the proof printing resetting switch is adjusted according to the difference data, and the operation program in the digital printer is simultaneously modified according to the data when the proof printing resetting switch is corrected.

Example 2

As another preferred embodiment of the present invention, there is a difference from embodiment 1 in that,

and (3) ink output regulation:

(1) the difference signal is transmitted into the adjusting mechanism, the difference signal data is compared with the adjusting data in the adjusting mechanism to obtain a data difference, the data difference is analyzed and compared, and when the difference data is within a safety value range, the adjusting mechanism does not adjust the printing ink;

(2) when the difference data is lower than the safety value, the adjusting mechanism controls the flow rate of the ink in the ink guide valve to be increased, and meanwhile, the contact area between the color ink transfer roller and the ink duct roller is increased, and the output of the ink is increased;

(3) when the difference data is higher than the safety value, the adjusting mechanism controls the flow rate of the ink in the ink guide valve to be reduced, and meanwhile, the contact area between the color ink transfer roller and the ink duct roller is reduced, and the output of the ink is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.