Process method and system for controlling temperature in printing process

Abstract

The invention relates to a process method for temperature control in the printing process. The process method comprises the following steps that sectioning section information of a printed product is loaded; identifying the size of the cross section of each layer to determine the temperature control range of each layer in advance; analyzing the ink-jet areas of different areas of the current layer, and determining the temperature required by the ink-jet division areas within the temperature control range of the current layer; and performing temperature parameter regulation and control according to the temperature required by the ink jet identification division area. The invention further relates to a process system for temperature control in the printing process. According to the scheme, the problem of green body quality fluctuation caused by unreasonable process temperature control in an existing scheme can be solved.

Description

Technical Field

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

[0002] BJAM (Binder Jetting Additive Maufacture) technology uses a nozzle to spray a special binder onto pre-laid metal powder, and then re-lays the next layer of powder through a powder roller or scraper, so that it is stacked layer by layer, and then cured at low temperature to obtain a metal green body with sufficient strength, and then degrease and sinter to obtain metal parts with sufficient mechanical properties. Compared with traditional processing technology and other 3D printing technologies, BJ technology has the advantages of high efficiency and low cost in molding complex structures, and its mechanical properties are isotropic, with better service performance, and is widely used in many fields.

[0003] However, compared with powder bed metal 3D printing technology, BJAM printing has the problem that the process temperature cannot be reasonably controlled when printing products of different volumes and cross-sections in the same box. Lower process temperatures may cause defects such as ink seepage and powder sticking, while higher process temperatures may cause defects such as insufficient strength and reduced nozzle life. The current industry solution is to classify products to avoid printing products with large volume differences in the same box, but products of the same type cannot meet higher layout rate requirements, resulting in excessively high green printing costs. Summary of the invention

[0004] Based on this, it is necessary to provide a process method and system for temperature control during the printing process to address the problem of green body quality fluctuations caused by unreasonable process temperature control in existing solutions.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] The embodiment of the present invention discloses a process method for controlling the temperature of a printing process, comprising the following steps:

[0007] Load the cut section information of the printed product;

[0008] Identify the cross-sectional size of each layer to determine the temperature control range of each layer in advance;

[0009] Analyze the inkjet area size of different regions of the current layer, and determine the required temperature of the inkjet division area within the temperature control range of the current layer;

[0010] The temperature parameters are regulated according to the temperature required for the inkjet recognition division area.

[0011] In one embodiment, analyzing the inkjet area sizes of different regions of the current layer and determining the required temperature of the inkjet divided regions within the temperature control range of the current layer includes:

[0012] Identify the overall inkjet area size on the current powder surface layer;

[0013] When the inkjet area is larger than 50dm 2 , and when the inkjet areas are 10-20mm apart, the temperature control operation is performed according to the zone temperature control logic;

[0014] When the inkjet area is a whole without contour lines, the temperature control temperature is determined according to the entire inkjet area.

[0015] In one embodiment, when the inkjet area is a whole without contour lines, determining the temperature control temperature according to the entire inkjet area includes:

[0016] When the inkjet area is less than or equal to 50dm 2 When the temperature of the inkjet surface is set to 30-32±0.5℃;

[0017] When the inkjet area is larger than 50dm 2 And less than or equal to 200dm 2 When the temperature of the inkjet surface is set to 32-36±0.5℃;

[0018] When the inkjet area is larger than 200dm 2 The temperature of the inkjet surface was set to 36-40±0.5℃.

[0019] In one embodiment, the zone temperature control further includes the step of independently controlling the temperature of each zone to ensure that the temperature of the inkjet surface in each zone meets the set temperature range.

[0020] In one of the embodiments, the temperature parameter control according to the temperature required for the inkjet recognition area division includes: intelligent control according to the temperature required for the inkjet recognition area division, stopping heating and performing insulation treatment in areas with too high temperature, and increasing heating power in areas with too low temperature.

[0021] In one embodiment, the parameters include: adjusting the power of the lamp tube, adjusting the moving speed of the lamp tube, and adjusting the height between the lamp tube and the inkjet identification division area.

[0022] In a second aspect, an embodiment of the present invention discloses a process system for controlling the temperature of a printing process, which is applied to the process method for controlling the temperature of a printing process described above, including:

[0023] A cutting section information loading module is used to load the cutting section information of the printed product;

[0024] The cross-section size identification module is used to identify the cross-section size of each layer to determine the temperature control range of each layer in advance;

[0025] The inkjet area analysis module is used to analyze the inkjet area size of different areas of the current layer and determine the temperature required for the inkjet division area within the temperature control range of the current layer;

[0026] The temperature parameter control module is used to control the temperature parameters according to the temperature required for the inkjet recognition division area.

[0027] In one embodiment, the inkjet area analysis module includes:

[0028] An overall distinguishing and identifying unit is used to identify the overall inkjet area size on the current powder surface layer;

[0029] Zoned temperature control unit, used when the inkjet area is larger than 50dm 2 , and when the inkjet areas are 10-20mm apart, the temperature control operation is performed according to the zone temperature control logic;

[0030] The overall area temperature control unit is used to determine the temperature control temperature according to the entire inkjet area when the inkjet area is an entire area without contour divisions.

[0031] In a third aspect, an embodiment of the present invention discloses a computer, including:

[0032] 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 process method for temperature control during the printing process as described above by executing the computer instructions.

[0033] 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 process method for controlling the temperature of the printing process described above.

[0034] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0035] In the process method for temperature control of the printing process disclosed in the embodiment of the present invention, a series of refined operation steps are used to significantly improve the temperature management efficiency in the BJAM printing process. The present invention lays a solid foundation for subsequent temperature control analysis by loading the cross-sectional information of the product to be printed. Secondly, by identifying the cross-sectional size of each layer and determining the temperature control range of each layer in advance, the present invention realizes differentiated temperature treatment of different layer structures. Furthermore, based on the analysis of the inkjet area size of different regions of the current layer, the present invention accurately divides the specific temperatures required for different inkjet areas. This detailed regional division and precise temperature control fully meet the thermal requirements of the printed material in different regions, and effectively avoids printing quality problems caused by improper temperature. Finally, the temperature parameters are adjusted according to the temperature required for the inkjet identification and division area. The present invention ensures that the temperature in the actual printing process can be accurately controlled within the required range. This step not only improves the consistency and stability of the printing quality, but also successfully solves the temperature control problem that may exist in the same box of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] none DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] The embodiment of the present invention discloses a process method for controlling the temperature of a printing process. The disclosed process method for controlling the temperature of a printing process includes the following steps:

[0041] Load the cross-sectional information of the printed product; this step involves importing the 3D model data of the product to be printed into the system, especially the cross-sectional information of the product, which is the basis for subsequent temperature control analysis.

[0042] Identify the cross-sectional size of each layer to determine the temperature control range of each layer in advance. The system will analyze the size of each layer one by one based on the loaded cross-sectional information, and then estimate and set the approximate temperature control range of each layer. This step is to ensure that different layers can receive appropriate temperature treatment according to their structural characteristics during the entire printing process.

[0043] Analyze the inkjet area size of different regions in the current layer, and determine the temperature required for the inkjet division area within the temperature control range of the current layer. At this point, after determining the approximate temperature range of each layer, the system further refines the analysis of the inkjet area size of different regions in the current layer. Based on this information, the system further accurately divides the specific temperature required for different inkjet areas within the temperature control range of the current layer. The key to this step is to achieve precise temperature control through detailed regional division to adapt to the differences in thermal requirements of printing materials in different areas.

[0044] The temperature parameters are adjusted according to the required temperature of the inkjet identification area. Finally, the system will adjust the heating or cooling system of the printing equipment according to the specific temperature required for each inkjet area determined in the previous step to ensure that the temperature during the actual printing process is accurately controlled within the required range. This step ensures the consistency and stability of the printing quality and solves the temperature control problem that may exist in the same box of products.

[0045] It can be seen from the above that in the process method for temperature control of the printing process disclosed in the embodiment of the present invention, a series of refined operation steps are used to significantly improve the temperature management efficiency in the BJAM printing process. The present invention lays a solid foundation for subsequent temperature control analysis by loading the cross-sectional information of the product to be printed. Secondly, by identifying the cross-sectional size of each layer and determining the temperature control range of each layer in advance, the present invention realizes differentiated temperature treatment of different layer structures. Furthermore, based on the analysis of the inkjet area size of different regions of the current layer, the present invention accurately divides the specific temperatures required for different inkjet areas. This detailed regional division and precise temperature control fully meet the thermal requirements of the printed material in different regions, and effectively avoids printing quality problems caused by improper temperature. Finally, the temperature parameters are adjusted according to the temperature required for the inkjet identification and division area. The present invention ensures that the temperature in the actual printing process can be accurately controlled within the required range. This step not only improves the consistency and stability of the printing quality, but also successfully solves the temperature control problem that may exist in the same box of products.

[0046] Furthermore, the step of analyzing the inkjet area sizes of different regions of the current layer and determining the temperature required for inkjet division regions within the temperature control range of the current layer may specifically include:

[0047] Identifying the size of the overall inkjet area on the current powder surface layer is the basis for ensuring that the subsequent temperature control strategy can accurately match the printing requirements.

[0048] When the inkjet area is larger than 50dm 2 , and when the inkjet areas are 10-20mm apart, the temperature control operation is performed according to the zone temperature control logic; that is, for inkjet areas with a large area and a certain distance between them, the system will regard them as independent temperature control units and set the temperature suitable for each area to optimize the printing effect and material curing quality.

[0049] When the inkjet area is divided as a whole without contour lines, the temperature control temperature is determined according to the entire inkjet area. At this time, if the inkjet area is divided as a whole without contour lines, that is, the inkjet part on the entire printing layer forms a continuous, undefined overall area, the system will uniformly determine the temperature control temperature according to the entire inkjet area. This processing method simplifies the complexity of temperature control and is suitable for situations where the inkjet distribution is uniform and there is no need to distinguish the temperature control area.

[0050] Furthermore, when the inkjet area is a whole without contour lines, the step of determining the temperature control temperature according to the entire inkjet area may specifically include:

[0051] When the inkjet area is less than or equal to 50dm 2 The temperature of the inkjet surface is set at 30-32±0.5℃; this temperature range is designed to ensure that the material can be fully cured without excessive pyrolysis, while reducing printing quality issues caused by temperature fluctuations.

[0052] When the inkjet area is larger than 50dm 2 And less than or equal to 200dm 2 The temperature of the inkjet surface is set to 32-36±0.5℃; this temperature adjustment is designed to meet the needs of inkjet printing over a larger area and ensure uniform heat distribution and effective curing of the material during printing.

[0053] When the inkjet area is larger than 200dm 2 The temperature of the inkjet surface is set to 36-40±0.5℃. This higher temperature range is designed to ensure that the material can be cured quickly and evenly during large-area inkjet printing, while reducing printing defects caused by insufficient temperature.

[0054] Through the above-mentioned refined temperature control strategy, the present invention can flexibly adjust the temperature control temperature of the entire inkjet area according to the area size of different inkjet areas, thereby improving printing efficiency and material utilization while ensuring printing quality.

[0055] In an embodiment of the present invention, the zone temperature control may also include the step of independently controlling the temperature of each zone to ensure that the temperature of the inkjet surface in each zone meets the set temperature range. In this case, the technology not only involves temperature control of multiple zones, but also enables independent temperature control of each zone. This means that each zone can be adjusted to a specific temperature according to its own needs without being affected by the temperature settings of other zones. This independence ensures that the inkjet surface in each zone can be maintained within a precise and required temperature range.

[0056] Furthermore, the temperature parameter regulation according to the temperature required for inkjet identification to divide the area may include: intelligent regulation according to the temperature required for inkjet identification to divide the area, stopping heating and performing insulation treatment in areas with too high temperature, and increasing the heating power in areas with too low temperature. At this time, on the basis of inkjet identification and dividing the required temperature of different areas, the regulation of temperature parameters can be further refined into intelligent operations. Specifically, the system will accurately regulate the actual temperature requirements of each area: if the temperature of a certain area is too high, the system will automatically stop heating the area and take insulation measures to prevent the temperature from continuing to rise; on the contrary, if the temperature of a certain area is too low, the system will increase the heating power of the area accordingly to ensure that its temperature can reach the required standard. Such an intelligent regulation method not only improves the accuracy of temperature control, but also ensures the stability and consistency of the temperature of each area during the inkjet identification process.

[0057] In an optional embodiment, the parameters may include: adjusting the lamp power, adjusting the lamp moving speed, adjusting the height between the lamp and the inkjet identification area. Of course, other temperature control methods are also possible, and the embodiment of the present invention does not limit this.

[0058] Based on the process method for temperature control of the printing process disclosed in the embodiment of the present invention, the embodiment of the present invention further discloses a process system for temperature control of the printing process, which is applied to the process method for temperature control of the printing process described in any of the above embodiments, including: a cutting section information loading module, used to load the cutting section information of the printed product; a cross-sectional size identification module, used to identify the cross-sectional size of each layer, so as to determine the temperature control range of each layer in advance; an inkjet area analysis module, used to analyze the inkjet area size of different areas of the current layer, and determine the temperature required for the inkjet divided area within the temperature control range of the current layer; a temperature parameter control module, used to control the temperature parameters according to the temperature required for the inkjet identification divided area.

[0059] The system accurately loads product data through the section information loading module, and the section size identification module determines the temperature control range of each layer in advance, achieving accurate preset before printing. The inkjet area analysis module further refines the temperature control and adjusts the temperature according to the size of the inkjet area in different regions of the current layer to ensure printing quality. The temperature parameter control module adjusts the temperature parameters in real time according to the analysis results to achieve dynamic optimization. Overall, the system effectively improves the temperature control accuracy and efficiency of the printing process, ensures the quality consistency of the printed products, reduces energy consumption and material waste, and improves the overall printing efficiency.

[0060] Further, the inkjet area analysis module may include:

[0061] An overall distinguishing and identifying unit is used to identify the overall inkjet area size on the current powder surface layer;

[0062] Zoned temperature control unit, used when the inkjet area is larger than 50dm 2 , and when the inkjet areas are 10-20mm apart, the temperature control operation is performed according to the zone temperature control logic;

[0063] The overall area temperature control unit is used to determine the temperature control temperature according to the entire inkjet area when the inkjet area is an entire area without contour divisions.

[0064] Based on the process method for controlling the temperature of a printing process disclosed in an embodiment of the present invention, an embodiment of the present invention discloses a computer, comprising:

[0065] 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 process method for temperature control during the printing process as described above by executing the computer instructions.

[0066] Based on the process method for controlling the temperature of a printing process disclosed in an embodiment of the present invention, 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 process method for controlling the temperature of a printing process described above.

[0067] 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 process for controlling the temperature of a printing process, characterized in that: The following steps are involved: Load the cut section information of the printed product; Identify the cross-sectional size of each layer to determine the temperature control range of each layer in advance; Analyze the inkjet area size of different regions of the current layer, and determine the required temperature of the inkjet division area within the temperature control range of the current layer; The temperature parameters are regulated according to the temperature required for the inkjet recognition division area.

2. The process for controlling the temperature of the printing process according to claim 1, characterized in that: The analyzing the inkjet area size of different regions of the current layer and determining the required temperature of the inkjet division region within the temperature control range of the current layer includes: Identify the overall inkjet area size on the current powder surface layer; When the inkjet area is larger than 50dm 2 , and when the inkjet areas are 10-20mm apart, the temperature control operation is performed according to the zone temperature control logic; When the inkjet area is a whole without contour lines, the temperature control temperature is determined according to the entire inkjet area.

3. The process for controlling the temperature of the printing process according to claim 2, characterized in that: When the inkjet area is a whole without contour lines, determining the temperature control temperature according to the entire inkjet area includes: When the inkjet area is less than or equal to 50dm 2 When the temperature of the inkjet surface is set to 30-32±0.5℃; When the inkjet area is larger than 50dm 2 And less than or equal to 200dm 2 When the temperature of the inkjet surface is set to 32-36±0.5℃; When the inkjet area is larger than 200dm 2 The temperature of the inkjet surface was set to 36-40±0.5℃.

4. The process for controlling the temperature of the printing process according to claim 2, characterized in that: The zone temperature control also includes the step of independently controlling the temperature of each zone to ensure that the temperature of the inkjet surface in each zone meets the set temperature range.

5. The process for controlling the temperature of the printing process according to claim 1, characterized in that: The temperature parameter control according to the temperature required for the inkjet identification division area includes: intelligently controlling the temperature required for the inkjet identification division area, stopping heating and performing insulation treatment in areas with too high temperature, and increasing heating power in areas with too low temperature.

6. The process for controlling the temperature of the printing process according to claim 5, characterized in that: The parameters include: adjusting the power of the lamp tube, adjusting the moving speed of the lamp tube, and adjusting the height between the lamp tube and the inkjet identification division area.

7. A process system for controlling the temperature of a printing process, applied to the process method for controlling the temperature of a printing process according to claims 1 to 6, characterized in that: include: A cutting section information loading module is used to load the cutting section information of the printed product; The cross-section size identification module is used to identify the cross-section size of each layer to determine the temperature control range of each layer in advance; The inkjet area analysis module is used to analyze the inkjet area size of different areas of the current layer and determine the temperature required for the inkjet division area within the temperature control range of the current layer; The temperature parameter control module is used to control the temperature parameters according to the temperature required for the inkjet recognition division area.

8. The process system for controlling the temperature of the printing process according to claim 7, characterized in that: The inkjet area analysis module comprises: An overall distinguishing and identifying unit is used to identify the overall inkjet area size on the current powder surface layer; Zoned temperature control unit, used when the inkjet area is larger than 50dm 2 , and when the inkjet areas are 10-20mm apart, the temperature control operation is performed according to the zone temperature control logic; The overall area temperature control unit is used to determine the temperature control temperature according to the entire inkjet area when the inkjet area is an entire area without contour divisions.

9. 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 process method for temperature control during a printing process as described in any one of claims 1 to 6 by executing the computer instructions.

10. 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 process method for controlling the temperature of a printing process as described in any one of claims 1 to 6.