Printing control method and system

Abstract

The invention relates to a printing control method which comprises the steps that a printing control system feeds back current layer printing end information to an image monitoring system, and the image monitoring system collects and recognizes a current layer printing image and then feeds back defect information of the current layer printing image to the printing control system; if no defect is fed back by the current layer, the printing work continues to be executed; when the image monitoring system feeds back that the current layer printing image has defects, the printing control system controls the nozzle to move to a test page printing area to execute nozzle state detection and receives nozzle state information fed back by the image monitoring system; according to defect information fed back by the image monitoring system and nozzle state information, the printing control system executes corresponding printing image defect compensation printing; and repeatedly executing until the whole printing task is completed. The invention further relates to a printing control system and a computer readable storage medium. According to the scheme, the problem that the nozzle is blocked or damaged to ensure that the whole printing operation can be completed at a time can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of printing methods, and in particular to a printing control method and system. Background Art

[0002] Inkjet powder bonding (3DP) printing technology is an advanced manufacturing technology that relies on the precise control of the software system to enable the nozzle to move accurately according to the two-dimensional data of the model section. During the printing process, the nozzle will selectively spray binders at specific locations, which will bind the powder materials together, stacking layer by layer to eventually form the desired three-dimensional model.

[0003] However, in practical applications, inkjet powder printing technology also faces a series of challenges. Since the binder usually has a certain viscosity, this may cause the nozzle to be partially blocked or damaged during long-term use. When the nozzle is blocked or damaged, it cannot spray the binder at the corresponding position, resulting in blank blocks where the binder cannot be sprayed during the printing process. After these blank blocks are stacked layer by layer, the strength of the printed model will be reduced and various forming defects such as cracks and deformation may occur.

[0004] What’s more serious is that these problems are often difficult to detect in time during the printing process. Blank blocks caused by nozzle blockage or damage can usually only be observed after printing is completed, which makes it very difficult to find and solve the problem. Therefore, how to effectively solve the problem of nozzle blockage or damage and improve the strength and forming quality of the printed model has become a key issue that needs to be solved in the current inkjet powder printing technology. Summary of the invention

[0005] Based on this, it is necessary to provide a printing control method and system for effectively solving the problem of nozzle blockage or damage to ensure that the entire printing operation can be completed in one go.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] In a first aspect, an embodiment of the present invention discloses a printing control method, comprising the following steps:

[0008] Load the current layer printing image, and control the nozzle to move on the working platform and spray ink through the printing control system to complete the printing of the current layer;

[0009] The printing control system feeds back the current layer printing completion information to the image monitoring system, and the image monitoring system collects and identifies the current layer printing image, and then feeds back the current layer printing image defect information to the printing control system; if the current layer is fed back without defects, the printing work will continue;

[0010] When the image monitoring system reports that the current layer of printed image has defects, the printing control system controls the print head to move to the test page printing area to perform print head status detection and receive the print head status information fed back by the image monitoring system;

[0011] According to the defect information and printhead status information fed back by the image monitoring system, the print control system performs corresponding print image defect compensation printing;

[0012] Repeat the above printing logic until the entire printing task is completed.

[0013] In one embodiment, the printing control system performs corresponding printing image defect compensation printing according to the defect information and printhead status information fed back by the image monitoring system, including:

[0014] The defect information and the nozzle status information are compared and analyzed. If the defect indicated by the defect information is large, the print image defect is compensated by printing through multiple back-and-forth printing operations.

[0015] In one embodiment, a matching analysis is performed on the defect information and the nozzle status information to accurately determine the compensation printing range to ensure that the range is completely consistent with the defect range existing in the printed image.

[0016] In one embodiment, the printing control system automatically adjusts printing parameters, such as nozzle movement speed, ink jet volume, etc., according to defect information and nozzle status information to perform compensation printing.

[0017] In a second aspect, an embodiment of the present invention discloses a printing control system, including the printing control method described above, including:

[0018] The loading control module is used to load the current layer printing image, and control the nozzle to move on the working platform and spray ink through the printing control system to complete the printing of the current layer;

[0019] The printing control module is used for the printing control system to feed back the current layer printing completion information to the image monitoring system. The image monitoring system collects the current layer printing image and identifies it, and then feeds back the defect information of the current layer printing image to the printing control system; if the current layer is fed back without defects, the printing work will continue;

[0020] The image detection module is used for controlling the print control system to move the print head to the test page printing area to perform print head status detection when the image monitoring system reports that the current layer print image has defects, and receiving the print head status information fed back by the image monitoring system;

[0021] The defect processing module is used for the printing control system to perform corresponding printing image defect compensation printing according to the defect information and printhead status information fed back by the image monitoring system;

[0022] The logic control module is used to repeatedly execute the above printing logic until the entire printing task is completed.

[0023] In one embodiment, the defect processing module includes a defect processing unit, which is used to compare and analyze defect information and nozzle status information. If the defect indicated by the defect information is large, the print image defect is compensated by multiple back-and-forth printing operations.

[0024] In one embodiment, the defect processing module further includes a defect matching analysis unit, which is used to perform matching analysis on the defect information and the nozzle status information to accurately determine the compensation printing range and ensure that the range is completely consistent with the defect range existing in the printed image.

[0025] In a third aspect, an embodiment of the present invention discloses a computer, including:

[0026] A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the printing control method described above by executing the computer instructions.

[0027] In a fourth aspect, an embodiment of the present invention discloses a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the printing control method described above.

[0028] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0029] In the printing control method disclosed in the embodiment of the present invention, through the intelligent monitoring and compensation mechanism, when the printed image defects are detected, the nozzle status detection can be immediately performed, and the corresponding compensation printing operation can be performed according to the detection results, so that the printing work can be continued without stopping the machine. This greatly improves the printing efficiency and reduces the production delays caused by downtime. The image monitoring system can collect and analyze the printed image in real time and accurately identify potential printing defects. The printing control system intelligently adjusts the movement trajectory of the nozzle, increases the inkjet volume or enables spare nozzles based on these defect information to ensure that the image quality of the subsequent printed layer is not affected. This effectively avoids the problem of reduced printing quality caused by nozzle blockage or damage. The invented printing control method realizes automatic monitoring and control of the printing process and reduces the need for manual intervention. This not only improves production efficiency, but also reduces labor costs, making the printing process more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] none DETAILED DESCRIPTION

[0031] The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom end", "top end" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] The embodiment of the present invention discloses a printing control method, and the disclosed printing control method comprises the following steps:

[0035] Load the current layer print image, and control the print head to move on the work platform and spray ink through the print control system to complete the printing of the current layer. The system first loads the current layer print image corresponding to the 3D model set by the user. Through the print control system, the movement trajectory of the print head on the work platform is accurately controlled, and ink is sprayed according to the image data to complete the printing task of the current layer.

[0036] The printing control system feeds back the information of the end of printing of the current layer to the image monitoring system. The image monitoring system collects the printing image of the current layer and identifies it, and then feeds back the defect information of the printing image of the current layer to the printing control system; if the current layer is fed back without defects, the printing work will continue. When the printing of the current layer is completed, the printing control system sends a printing end signal to the image monitoring system. The image monitoring system then collects the printing image of the current layer and analyzes it using advanced image recognition technology. After the image monitoring system completes the identification, it feeds back the defect information of the printing image of the current layer (if any) to the printing control system. If there are no defects in the current layer, the system automatically enters the printing preparation stage for the next layer.

[0037] When the image monitoring system reports that the current layer of printed image has defects, the print control system controls the print head to move to the test page printing area to perform print head status detection and receive the print head status information fed back by the image monitoring system. When the image monitoring system detects that the current layer of printed image has defects, the print control system responds immediately, and the system controls the print head to move to the preset test page printing area. In the test page printing area, the system executes the print head status detection program, and the image monitoring system collects the test page image and feeds back the print head status information to the print control system.

[0038] According to the defect information and printhead status information fed back by the image monitoring system, the print control system performs corresponding print image defect compensation printing. According to the defect information and printhead status information fed back by the image monitoring system, the print control system performs comprehensive analysis. According to the analysis results, the print control system performs corresponding print image defect compensation printing to correct the identified defects.

[0039] Repeat the above printing logic until the entire printing task is completed. The system will repeat the above printing logic (from step 1 to step 4), printing layer by layer, until all layers of the entire 3D model are successfully printed and the image monitoring system confirms that there are no defects. At this point, the entire printing task is completed.

[0040] It can be seen from the above content that in the printing control method disclosed in the embodiment of the present invention, through the intelligent monitoring and compensation mechanism, when the printed image defects are detected, the nozzle status detection can be immediately performed, and the corresponding compensation printing operation can be performed according to the detection results, so that the printing work can be continued without stopping the machine. This greatly improves the printing efficiency and reduces the production delays caused by downtime. The image monitoring system can collect and analyze the printed image in real time and accurately identify potential printing defects. The printing control system intelligently adjusts the movement trajectory of the nozzle, increases the inkjet amount or enables the spare nozzle according to these defect information to ensure that the image quality of the subsequent printing layer is not affected. This effectively avoids the problem of reduced printing quality caused by nozzle blockage or damage. The invented printing control method realizes automatic monitoring and control of the printing process and reduces the need for manual intervention. This not only improves production efficiency, but also reduces labor costs, making the printing process more efficient and convenient.

[0041] Furthermore, the step of the printing control system executing corresponding printing image defect compensation printing according to the defect information and printhead status information fed back by the image monitoring system may specifically include:

[0042] The defect information and the nozzle status information are compared and analyzed. If the defect indicated by the defect information is large, the print image defect is compensated by multiple back-and-forth printing operations. In this case, by comprehensively analyzing the defect information and the nozzle status information, the system can accurately determine the type and scale of defects in the printed image. When the defect indicated by the defect information is large, the system can automatically trigger the compensation printing mechanism to accurately dock and repair the defective area through multiple back-and-forth printing operations. This method not only improves the printing quality, but also ensures the integrity and consistency of the printed image. At the same time, it can also ensure that the printed workpiece is printed completely at one time to prevent downtime from affecting the printing quality.

[0043] Furthermore, in the embodiments disclosed in the present invention, a matching analysis is performed on the defect information and the nozzle status information to accurately determine the compensation printing range, ensuring that the range is completely consistent with the defect range existing in the printed image. In this case, by matching the defect information and the nozzle status information, the range of the compensation printing can be accurately determined to ensure that the compensation area completely corresponds to the actual defect area in the printed image, thereby avoiding the problem of over-compensation or under-compensation and improving the printing quality. At the same time, the method realizes the automatic adjustment of printing parameters, directly adjusting key parameters such as the nozzle movement speed and inkjet volume according to the results of the matching analysis, without manual intervention, thereby improving printing efficiency and accuracy. By performing the compensation printing operation, the identified print image defects can be effectively corrected, and the overall quality of the printed products and customer satisfaction can be improved.

[0044] In an optional embodiment, the printing control system automatically adjusts printing parameters, such as nozzle movement speed, ink jet volume, etc., according to the defect information and nozzle status information to perform compensatory printing.

[0045] Based on the printing control method disclosed in the embodiment of the present invention, the embodiment of the present invention further discloses a printing control system, including the printing control method described in any embodiment above, and the disclosed printing control system includes:

[0046] The loading control module is used to load the current layer printing image, and control the nozzle to move on the working platform and spray ink through the printing control system to complete the printing of the current layer;

[0047] The printing control module is used for the printing control system to feed back the current layer printing completion information to the image monitoring system. The image monitoring system collects the current layer printing image and identifies it, and then feeds back the defect information of the current layer printing image to the printing control system; if the current layer is fed back without defects, the printing work will continue;

[0048] The image detection module is used for controlling the print control system to move the print head to the test page printing area to perform print head status detection when the image monitoring system reports that the current layer print image has defects, and receiving the print head status information fed back by the image monitoring system;

[0049] The defect processing module is used for the printing control system to perform corresponding printing image defect compensation printing according to the defect information and printhead status information fed back by the image monitoring system;

[0050] The logic control module is used to repeatedly execute the above printing logic until the entire printing task is completed.

[0051] From the above content, it can be seen that in the printing control system of the public course milk in the embodiment of the present invention, the printing image is accurately loaded and printed on the work platform through the loading control module. After printing is completed, the printing control module immediately triggers the image monitoring system to collect and identify the current layer of printing image, and quickly feedbacks the defect information. If there are no defects, the printing task continues; once a defect is found, the image detection module immediately starts the nozzle status detection to ensure that accurate nozzle status information is obtained. Based on this information, the defect processing module intelligently performs compensation printing operations and accurately corrects image defects. The logic control module ensures that the entire process is seamlessly connected until the printing task is successfully completed. This process not only achieves a significant improvement in printing quality, but also greatly improves printing efficiency and automation level, ensuring the quality of printed products.

[0052] Optionally, the defect processing module includes a defect processing unit, and the defect processing unit is used to compare and analyze the defect information and the nozzle status information. If the defect indicated by the defect information is large, the print image defect is compensated by printing through multiple back-and-forth printing operations.

[0053] Optionally, the defect processing module further includes a defect matching analysis unit, which is used to perform matching analysis on the defect information and the nozzle status information to accurately determine the compensation printing range and ensure that the range is completely consistent with the defect range existing in the printed image.

[0054] Based on the printing control method disclosed in the embodiment of the present invention, the embodiment of the present invention discloses a computer, including:

[0055] A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the printing control method described in any of the above embodiments by executing the computer instructions.

[0056] Based on the printing control method disclosed in the embodiment of the present invention, the embodiment of the present invention discloses a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the printing control method described in any of the above embodiments.

[0057] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A printing control method, characterized in that: The following steps are involved: Load the current layer printing image, and control the print head to move on the working platform and spray ink through the print control system to complete the printing of the current layer; The printing control system feeds back the current layer printing completion information to the image monitoring system, the image monitoring system collects the current layer printing image and identifies it, and then feeds back the current layer printing image defect information to the printing control system; If the current layer feedback shows no defects, the printing process will continue; When the image monitoring system reports that the current layer of printed image has defects, the printing control system controls the print head to move to the test page printing area to perform print head status detection, and receives the print head status information fed back by the image monitoring system; According to the defect information and printhead status information fed back by the image monitoring system, the print control system performs corresponding print image defect compensation printing; Repeat the above printing logic until the entire printing task is completed.

2. The printing control method according to claim 1, characterized in that: The printing control system performs corresponding printing image defect compensation printing according to the defect information and printhead status information fed back by the image monitoring system, including: The defect information and the nozzle status information are compared and analyzed. If the defect indicated by the defect information is large, the print image defect is compensated by printing through multiple back-and-forth printing operations.

3. The printing control method according to claim 2, characterized in that: The defect information and printhead status information are matched and analyzed to accurately determine the compensation printing range and ensure that the range is completely consistent with the defect range in the printed image.

4. The printing control method according to claim 1, characterized in that: The printing control system automatically adjusts printing parameters, such as nozzle movement speed, ink jet volume, etc., based on defect information and nozzle status information to perform compensatory printing.

5. A printing control system, comprising the printing control method according to any one of claims 1 to 4, characterized in that: include: The loading control module is used to load the current layer printing image, and control the nozzle to move on the working platform and spray ink through the printing control system to complete the printing of the current layer; The printing control module is used for the printing control system to feed back the current layer printing completion information to the image monitoring system, and the image monitoring system collects the current layer printing image and identifies it, and then feeds back the current layer printing image defect information to the printing control system; If the current layer feedback shows no defects, the printing process will continue; The image detection module is used for controlling the print control system to move the print head to the test page printing area to perform print head status detection when the image monitoring system reports that the current layer print image has defects, and receiving the print head status information fed back by the image monitoring system; The defect processing module is used for the printing control system to perform corresponding printing image defect compensation printing according to the defect information and printhead status information fed back by the image monitoring system; The logic control module is used to repeatedly execute the above printing logic until the entire printing task is completed.

6. The printing control system according to claim 5, characterized in that: The defect processing module includes a defect processing unit, which is used to compare and analyze the defect information and the nozzle status information. If the defect indicated by the defect information is large, the print image defect is compensated by printing through multiple back-and-forth printing operations.

7. The printing control system according to claim 5, characterized in that: The defect processing module also includes a defect matching analysis unit, which is used to perform matching analysis on the defect information and the nozzle status information to accurately determine the compensation printing range and ensure that the range is completely consistent with the defect range existing in the printed image.

8. A computer, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the printing control method according to any one of claims 1 to 4 by executing the computer instructions.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the printing control method according to any one of claims 1 to 4.