A method and system for processing surface patterns of ceramic products

Abstract

The present invention relates to the field of ceramic processing technology, and in particular to a method and system for processing a surface pattern of a ceramic product. The present invention performs pattern texture engraving on the surface of the ceramic to be processed, selects a characteristic texture area according to the regional characteristic value of the texture area, determines whether there is an abnormal bonding risk at the glaze blank interface according to the comparison of texture characterization parameters before and after the first firing, determines a glazing order and selects a key order according to a change in the texture characterization parameter, determines whether there is an abnormal glaze slurry rheology phenomenon in the ceramic according to a change in the gray value of the characteristic texture area corresponding to the key order before and after surface glazing, and adjusts the temperature of a drying process to obtain a target ceramic product. Furthermore, in the process of processing the ceramic surface pattern, according to the difference in pattern texture, the glaze blank bonding risk can be quickly identified, and subsequent processing parameters can be adaptively adjusted, thereby improving the processing efficiency of the ceramic product surface pattern processing and the accuracy of the processing technology.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic processing, and in particular to a method and system for processing a surface pattern of a ceramic product. Background Art

[0002] As a traditional and widely used product, ceramic products occupy an important position in daily life, artistic decoration and industrial fields. Their surface patterns can not only enhance the aesthetics and artistic value of the products, but also convey specific cultural connotations. With the improvement of consumers' living standards and the change of consumption concepts, the demand for personalized ceramic products is becoming increasingly strong. In the traditional ceramic processing operation process, manual labor is required to rely on experience to detect and adjust the production process of ceramic products, which is prone to product quality problems due to human operational errors, and also limits the improvement of production efficiency. Therefore, improving the processing efficiency of ceramic product surface pattern processing and the accuracy of the processing technology is a technical problem that needs to be solved urgently.

[0003] For example, the Chinese patent authorization announcement number is: CN104230387B, which discloses a method for producing patterned glazed ceramic tiles. The production method includes the following steps: preparing a ceramic tile blank, preparing a colored glaze coating layer on the surface of a frit, spraying a layer of a water repellent on the surface of the ceramic tile blank, and then spreading the frit with the colored glaze coating layer on the ceramic tile blank, and then spraying a layer of frit particle binder, and finally drying, firing and polishing to obtain a patterned glazed ceramic tile product. The frit particle binder contains the following components in percentage by mass: 5.0-6.0% cellulose thickener, 2.0-2.8% attapulgite, 1.1-1.4% defoamer, 1.2-1.8% dispersant, and the remainder is solvent. The invention uses the frit particle binder to fix the frit with a colored glaze coating on the ceramic tile blank, thereby preventing the frit particles from being sucked away by the low negative pressure of the kiln preheating zone due to their small particles, thereby avoiding the appearance of a large number of pinholes, bubbles and other defects on the brick surface that affect the decorative effect of the brick blank.

[0004] The prior art still has the following problems:

[0005] The prior art does not take into account that during the ceramic surface pattern processing, the difference in pattern texture will affect the glaze bonding. During the ceramic surface pattern processing, the prior art cannot quickly identify the glaze bonding risk based on the difference in pattern texture, and cannot adaptively adjust subsequent processing parameters, which affects the processing efficiency of the ceramic product surface pattern processing and the accuracy of the processing technology. Summary of the invention

[0006] To this end, the present invention provides a ceramic product surface pattern processing method and system to overcome the problems in the prior art that, during the ceramic surface pattern processing process, the risk of glaze blank bonding cannot be quickly identified according to the difference in pattern texture, and subsequent processing parameters cannot be adaptively adjusted, which affects the processing efficiency of the ceramic product surface pattern processing and the accuracy of the processing technology.

[0007] To achieve the above object, the present invention provides a method for processing a surface pattern of a ceramic product, comprising:

[0008] Carving a pattern texture on the surface of the ceramic to be processed, dividing the pattern texture into a plurality of texture regions, and screening characteristic texture regions according to regional characteristic values ​​corresponding to the texture regions;

[0009] The regional characteristic value is determined according to the texture spacing and the surface curvature within the texture region;

[0010] The engraved ceramic is fired for the first time, and the comparison of the texture characterization parameters of each characteristic texture area before and after the first firing is obtained to determine the glaze blank bonding risk coefficient of the characteristic texture area, and determine whether there is an abnormal bonding risk at the glaze blank interface of the ceramic;

[0011] glazing the surface of the ceramic that has completed the first firing, in response to the presence of abnormal bonding risk at the interface of the glaze blank, determining the glazing order of each characteristic texture area according to the change amount of the texture characterization parameter of each characteristic texture area within a number of characteristic monitoring cycles, and screening the characteristic texture areas corresponding to the key order;

[0012] Drying the ceramics after surface glazing, obtaining the gray value change of the characteristic texture area corresponding to the key sequence before and after surface glazing, judging whether the ceramics have glaze rheological anomaly according to the comparison of several gray value changes and adjusting the temperature of the drying process;

[0013] The dried ceramic is fired for the second time to obtain the target ceramic product.

[0014] Furthermore, the process of determining the regional feature value corresponding to the texture region includes:

[0015] Obtaining an average value of the spacing between textures in the texture area and an average value of the curvature of the ceramic surface;

[0016] A ratio of the average spacing value to the average curvature value is calculated, and the ratio is determined as the regional characteristic value.

[0017] Furthermore, the process of screening the characteristic texture area includes:

[0018] If the regional feature value corresponding to the texture region does not meet the texture non-dominant condition, the texture region is screened as a feature texture region;

[0019] The texture non-explicit condition is that the regional characteristic value exceeds a preset regional characteristic reference value.

[0020] Furthermore, the process of determining the texture characterization parameters of the characteristic texture area includes:

[0021] Acquire texture width values ​​and texture depth values ​​of a plurality of points on the pattern texture in the characteristic texture area;

[0022] Calculate the ratio of the texture width value and the texture depth value corresponding to each point;

[0023] The average value of the ratios is determined as the texture characterization parameter.

[0024] Further, the process of determining the glaze bonding risk coefficient of the characteristic texture area includes:

[0025] Acquiring texture characterization parameters of each characteristic texture region before the first firing, and determining the texture characterization parameters as first texture characterization parameters;

[0026] Acquire texture characterization parameters of each characteristic texture region after the first firing, and determine the texture characterization parameters as second texture characterization parameters;

[0027] The absolute value of the difference between the first texture characterization parameter and the second texture characterization parameter corresponding to each characteristic texture area is calculated, and the absolute value of the difference is determined as the glaze blank bonding risk coefficient.

[0028] Further, the process of determining whether there is an abnormal bonding risk at the glaze blank interface of the ceramic includes:

[0029] If the glaze blank bonding risk coefficient corresponding to each characteristic texture area of ​​the ceramic does not meet the normal texture condition, it is determined that the glaze blank interface of the ceramic has an abnormal bonding risk;

[0030] The normal texture condition is that the glaze blank bonding risk coefficient corresponding to the characteristic texture area does not exceed a preset glaze blank bonding risk threshold.

[0031] Furthermore, the process of determining the glazing order of each characteristic texture area includes:

[0032] Obtaining texture characterization parameters corresponding to the initial time of each feature texture area in a plurality of feature monitoring cycles, and texture characterization parameters corresponding to the end time of the feature monitoring cycles;

[0033] Calculating the absolute value of the difference between the texture characterization parameter corresponding to the initial moment of the feature monitoring period and the texture characterization parameter corresponding to the termination moment of the feature monitoring period, and determining the absolute value of the difference as the texture characterization parameter change amount;

[0034] Screening the characteristic monitoring periods corresponding to the texture characterization parameter changes that meet the glazing conditions in the texture characterization parameter changes of each characteristic texture area, and determining the glazing order of each characteristic texture area according to the sequence of the characteristic monitoring periods in the time dimension;

[0035] The glazing condition is that the change in the texture characterization parameter does not exceed a preset texture change standard value for the first time.

[0036] Furthermore, the process of determining the key sequence and obtaining the grayscale value change of the characteristic texture area corresponding to the key sequence before and after the surface glazing includes:

[0037] Calculating the gray value difference of the characteristic texture area corresponding to the key sequence before and after the surface is glazed, and determining the gray value difference as the gray value variation;

[0038] The key sequence is the first glazing and the last glazing in the glazing sequence.

[0039] Furthermore, the process of determining whether the ceramic has abnormal glaze rheology and adjusting the temperature of the drying process includes:

[0040] If the comparison of the gray value changes corresponding to the key sequence does not meet the drying conditions, it is determined that the ceramic has glaze rheological anomaly and the temperature of the drying process is adjusted according to the gray value change difference of the key sequence;

[0041] Wherein, the drying condition is that the difference of the gray value variation of the key sequence does not exceed a preset gray value threshold;

[0042] The temperature increase amount is positively correlated with the gray value change difference.

[0043] Furthermore, the present invention also provides a ceramic product surface pattern processing system, comprising:

[0044] A feature recognition module, which is used to obtain the regional feature value of each texture area, the glaze blank combination risk coefficient of each characteristic texture area, and the gray value change amount of the characteristic texture area;

[0045] A feature determination module, which is connected to the feature recognition module and is used to screen the feature texture area and determine whether there is an abnormal bonding risk at the ceramic glaze blank interface;

[0046] A process adjustment module, which is connected to the feature recognition module and the feature determination module respectively, to determine the glazing order of each feature texture area, and to screen the feature texture areas corresponding to the key order, to determine whether the ceramic has glaze rheology anomaly and to adjust the temperature of the drying process;

[0047] The firing module is respectively connected to the feature recognition module, the feature determination module, and the process adjustment module, and is used to fire the ceramic to be processed.

[0048] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention divides the pattern texture into a plurality of texture regions by engraving the pattern texture on the surface of the ceramic to be processed, selects the characteristic texture region according to the regional characteristic values ​​corresponding to the texture region, performs the first firing on the engraved ceramic, obtains the comparison of the texture characterization parameters of each characteristic texture region before and after the first firing to determine the glaze blank bonding risk coefficient of the characteristic texture region, and determines whether there is an abnormal bonding risk at the glaze blank interface of the ceramic, glazes the surface of the ceramic that has completed the first firing, and in response to the presence of the abnormal bonding risk at the glaze blank interface, monitors the change amount of the texture characterization parameter of each characteristic texture region within a period according to a plurality of characteristics The glazing order of each characteristic texture area is determined, and the characteristic texture areas corresponding to the key order are screened. The ceramics with completed surface glazing are dried to obtain the grayscale value change of the characteristic texture areas corresponding to the key order before and after surface glazing. According to the comparison of several grayscale value changes, it is determined whether the ceramic has glaze slurry rheological abnormality and the temperature of the drying process is adjusted. The dried ceramics are fired for the second time to obtain the target ceramic products. Furthermore, in the process of ceramic surface pattern processing, according to the different pattern textures, the glaze blank bonding risk can be quickly identified, and the subsequent processing parameters can be adaptively adjusted, thereby improving the processing efficiency of ceramic product surface pattern processing and the accuracy of the processing technology.

[0049] In particular, the present invention determines the regional characteristic value through the texture spacing and surface curvature in the texture area. It can be understood that when glazing the surface of ceramics engraved with pattern textures, the glaze will be restricted by space. The texture spacing determines the spatial conditions for glaze filling. If the spacing is small, the glaze is difficult to fully flow in, which will cause local glaze deficiency and difficulty in forming a uniform and continuous glaze layer. The surface curvature reflects the degree of curvature of the ceramic surface. The greater the curvature, the higher the degree of surface undulation. Under the action of gravity and surface tension, it is difficult for the glaze to adhere evenly to the curved surface, and the glaze layer is prone to uneven thickness. The ratio of the average texture spacing to the average surface curvature is determined as the regional characteristic value, and the influence of the two on the combination of the glaze embryo is comprehensively considered. This characteristic value can more comprehensively reflect the characteristics of the texture area. Compared with the separate analysis of texture spacing or surface curvature, it can provide a more accurate risk assessment based on the comprehensive influence of the two. The present invention determines the regional characteristic value through the texture spacing and surface curvature in the texture area, thereby achieving the acquisition of characteristic parameters of regional pattern texture during ceramic surface pattern processing, thereby improving the processing efficiency of ceramic product surface pattern processing and the accuracy of processing technology.

[0050] In particular, the present invention selects characteristic texture areas according to the regional characteristic values ​​corresponding to the texture areas. It can be understood that the smaller the regional characteristic value, the smaller the ratio of the average spacing and the average curvature in the texture area, the texture spacing is relatively small, and the surface curvature is relatively large. The glaze in this area is prone to abnormal problems such as uneven glaze thickness and cracking during filling and attachment. Such areas are screened as characteristic texture areas, which is convenient for focusing on and processing in subsequent production, taking targeted measures to reduce risks and ensure product quality. The present invention selects characteristic texture areas through the regional characteristic values ​​corresponding to the texture areas, and further realizes monitoring according to different screening of characteristic texture areas according to pattern textures, thereby improving the processing efficiency of surface pattern processing of ceramic products and the accuracy of processing technology.

[0051] In particular, the present invention determines texture characterization parameters through texture width values ​​and texture depth values ​​of several points on the pattern texture within the characteristic texture area. It can be understood that the texture width will affect the uniformity of subsequent glaze filling, and the texture depth will affect the adhesion amount and adhesion of the subsequent glaze. The shape characteristics of the pattern texture in the area can be characterized according to the ratio of texture width and texture depth. The present invention determines texture characterization parameters through texture width values ​​and texture depth values ​​of several points on the pattern texture within the characteristic texture area, thereby achieving rapid identification of glaze blank bonding risks, adaptive adjustment of subsequent processing parameters, and improving the processing efficiency of surface pattern processing of ceramic products and the accuracy of processing technology.

[0052] In particular, the present invention determines whether there is a risk of abnormal bonding at the glaze blank interface of the ceramic by comparing the texture characterization parameters of each characteristic texture area before and after the first firing. It is understandable that firing will cause physical and chemical changes in the internal structure and texture of the ceramic. If the ratio of texture width and depth before and after firing is found to change, it means that the shape of the texture has changed, indicating that there may be a risk of inconsistency in the expansion and contraction of the glaze and blank in the subsequent secondary firing. The present invention determines whether there is a risk of abnormal bonding at the glaze blank interface of the ceramic by comparing the texture characterization parameters of each characteristic texture area before and after the first firing, thereby achieving rapid identification of glaze blank bonding risks, adaptive adjustment of subsequent processing parameters, and improving the processing efficiency of surface pattern processing of ceramic products and the accuracy of processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A step diagram of a method for processing a surface pattern of a ceramic product according to an embodiment of the present invention;

[0054] Figure 2 A logic flow chart for screening characteristic texture regions according to an embodiment of the present invention;

[0055] Figure 3 A logic flow chart for determining whether there is an abnormal bonding risk at a ceramic glaze blank interface according to an embodiment of the present invention;

[0056] Figure 4 It is a structural block diagram of a ceramic product surface pattern processing system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0057] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0058] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0059] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0060] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] See also Figure 1 As shown, it is a step diagram of a method for processing a surface pattern of a ceramic product according to an embodiment of the present invention. A method for processing a surface pattern of a ceramic product according to the present invention comprises:

[0062] Step S100, engraving a pattern texture on the surface of the ceramic to be processed, dividing the pattern texture into a plurality of texture regions, and selecting a characteristic texture region according to a regional characteristic value corresponding to the texture region;

[0063] The regional characteristic value is determined according to the texture spacing and the surface curvature within the texture region;

[0064] Specifically, the division size of the texture area can be set by technical personnel in this field according to the actual size of the surface of the ceramic to be processed. Preferably, when the ceramic to be processed is a ceramic vase with a height of 30 cm, the division size of the texture area can be a rectangular area with a side length of 0.5 cm.

[0065] Specifically, the present invention does not limit the specific engraving method of the pattern texture. Preferably, it can be achieved by a CNC engraving machine, manual engraving, etc., which is widely used in the field of ceramic engraving and will not be described in detail here.

[0066] Step S200, firing the engraved ceramic for the first time, obtaining a comparison of texture characterization parameters of each characteristic texture area before and after the first firing to determine the glaze blank bonding risk coefficient of the characteristic texture area, and determining whether there is an abnormal bonding risk at the glaze blank interface of the ceramic;

[0067] Specifically, the temperature range of the first firing can be [800, 1000], with the unit of °C, and the firing time range can be [8, 15], with the unit of h. Preferably, the temperature of the first firing can be 900 °C, and the firing time can be 12 h. This is a conventional process for ceramic processing and will not be repeated here.

[0068] Step S300, glazing the surface of the ceramic that has completed the first firing, in response to the presence of abnormal bonding risk at the interface of the glaze blank, determining the glazing order of each characteristic texture area according to the change amount of the texture characterization parameter of each characteristic texture area within a plurality of characteristic monitoring cycles, and screening the characteristic texture areas corresponding to the key order;

[0069] Step S400, drying the ceramics after surface glazing, obtaining the gray value change of the characteristic texture area corresponding to the key sequence before and after surface glazing, judging whether the ceramics have glaze rheological anomaly according to the comparison of several gray value changes, and adjusting the temperature of the drying process;

[0070] Step S500, firing the dried ceramic for the second time to obtain a target ceramic product.

[0071] Specifically, the temperature range of the second firing can be [1200, 1400], the unit of the range is ℃, the firing time range can be [15, 24], the unit of the range is h, preferably, the temperature of the second firing can be 1300℃, and the firing time can be 20h. This is the conventional process of ceramic processing and will not be repeated here.

[0072] Specifically, the process of determining the regional feature value corresponding to the texture region includes:

[0073] Obtaining an average value of the spacing between textures in the texture area and an average value of the curvature of the ceramic surface;

[0074] A ratio of the average spacing value to the average curvature value is calculated, and the ratio is determined as the regional characteristic value.

[0075] In particular, the present invention determines the regional characteristic value through the texture spacing and surface curvature in the texture area. It can be understood that when glazing the surface of ceramics engraved with pattern textures, the glaze will be restricted by space. The texture spacing determines the spatial conditions for glaze filling. If the spacing is small, the glaze is difficult to fully flow in, which will cause local glaze deficiency and difficulty in forming a uniform and continuous glaze layer. The surface curvature reflects the degree of curvature of the ceramic surface. The greater the curvature, the higher the degree of surface undulation. Under the action of gravity and surface tension, it is difficult for the glaze to adhere evenly to the curved surface, and the glaze layer is prone to uneven thickness. The ratio of the average texture spacing to the average surface curvature is determined as the regional characteristic value, and the influence of the two on the combination of the glaze embryo is comprehensively considered. This characteristic value can more comprehensively reflect the characteristics of the texture area. Compared with the separate analysis of texture spacing or surface curvature, it can provide a more accurate risk assessment based on the comprehensive influence of the two. The present invention determines the regional characteristic value through the texture spacing and surface curvature in the texture area, thereby achieving the acquisition of characteristic parameters of regional pattern texture during ceramic surface pattern processing, thereby improving the processing efficiency of ceramic product surface pattern processing and the accuracy of processing technology.

[0076] Specifically, a specific embodiment of determining the regional characteristic value corresponding to the texture area is given here. The texture spacings in the texture area obtained by the laser measuring instrument are d1=0.5, d2=0.55, d1=0.5, d2=0.55, d3=0.6, d4=0.58, d5=0.62mm, d6=0.56mm, d7=0.59mm, d8=0.61mm, d9=0.57mm, d10=0.63mm, and the ceramic surface curvatures in the texture area are: k1=0.8mm -1 , k2=0.85mm -1 , k3=0.9mm -1 , k4=0.88mm -1 , k5=0.92mm -1 , k6=0.86mm -1 、k7=0.89mm -1 、k8=0.91mm -1 、k9=0.87mm -1 、k10=0.93mm -1 , the average spacing is d=0.58mm, and the average curvature is 0.88mm -1 The dimensionless ratio of the spacing average and the curvature average is 0.66, and the regional characteristic value corresponding to the texture area is 0.66.

[0077] Specifically, see Figure 2 As shown, it is a logic flow chart of screening characteristic texture areas according to an embodiment of the present invention. The process of screening characteristic texture areas includes:

[0078] If the regional feature value corresponding to the texture region does not meet the texture non-dominant condition, the texture region is screened as a feature texture region;

[0079] If the regional feature value corresponding to the texture region meets the texture non-dominant condition, the texture region is not screened;

[0080] The texture non-explicit condition is that the regional characteristic value exceeds a preset regional characteristic reference value.

[0081] In particular, the present invention selects characteristic texture areas according to the regional characteristic values ​​corresponding to the texture areas. It can be understood that the smaller the regional characteristic value, the smaller the ratio of the average spacing and the average curvature in the texture area, the texture spacing is relatively small, and the surface curvature is relatively large. The glaze in this area is prone to abnormal problems such as uneven glaze thickness and cracking during filling and attachment. Such areas are screened as characteristic texture areas, which is convenient for focusing on and processing in subsequent production, taking targeted measures to reduce risks and ensure product quality. The present invention selects characteristic texture areas through the regional characteristic values ​​corresponding to the texture areas, and further realizes monitoring according to different screening of characteristic texture areas according to pattern textures, thereby improving the processing efficiency of surface pattern processing of ceramic products and the accuracy of processing technology.

[0082] Specifically, the preset regional characteristic reference value can be set by technical personnel in this field according to the processing accuracy of the surface pattern of the ceramic product. The higher the accuracy requirement, the smaller the preset regional characteristic reference value. Preferably, the regional characteristic reference value can be 0.7.

[0083] Specifically, the process of determining the texture characterization parameters of the characteristic texture area includes:

[0084] Acquire texture width values ​​and texture depth values ​​of a plurality of points on the pattern texture in the characteristic texture area;

[0085] Calculate the ratio of the texture width value and the texture depth value corresponding to each point;

[0086] The average value of the ratios is determined as the texture characterization parameter.

[0087] In particular, the present invention determines texture characterization parameters through texture width values ​​and texture depth values ​​of several points on the pattern texture within the characteristic texture area. It can be understood that the texture width will affect the uniformity of subsequent glaze filling, and the texture depth will affect the adhesion amount and adhesion of the subsequent glaze. The shape characteristics of the pattern texture in the area can be characterized according to the ratio of texture width and texture depth. The present invention determines texture characterization parameters through texture width values ​​and texture depth values ​​of several points on the pattern texture within the characteristic texture area, thereby achieving rapid identification of glaze blank bonding risks, adaptive adjustment of subsequent processing parameters, and improving the processing efficiency of surface pattern processing of ceramic products and the accuracy of processing technology.

[0088] Specifically, a specific embodiment of determining the texture characterization parameters of the characteristic texture area is given here, and the texture width values ​​and texture depth values ​​of several points on the pattern texture are obtained, respectively, point 1: texture width value w1=0.08mm, texture depth value h=0.12mm; point 2: texture width value w2=0.07mm, texture depth value h2=0.15mm; point 3: texture width value w3=0.09mm, texture depth value h3=0.13mm; point 4: texture width value w4=0.085mm, texture depth value h4=0.14mm; point 5: texture width value w5=0.075mm, texture depth value h5=0.16mm, the dimensionless ratios of the texture width value and the texture depth value corresponding to each point are r1=0.67, r2=0.47, r3=0.69, r4=0.61, r5=0.47, the average value of each ratio is 0.582, and the texture characterization parameter is 0.582.

[0089] Specifically, the process of determining the glaze bonding risk coefficient of the characteristic texture area includes:

[0090] Acquiring texture characterization parameters of each characteristic texture region before the first firing, and determining the texture characterization parameters as first texture characterization parameters;

[0091] Acquire texture characterization parameters of each characteristic texture region after the first firing, and determine the texture characterization parameters as second texture characterization parameters;

[0092] The absolute value of the difference between the first texture characterization parameter and the second texture characterization parameter corresponding to each characteristic texture area is calculated, and the absolute value of the difference is determined as the glaze blank bonding risk coefficient.

[0093] Specifically, a specific embodiment of determining the glaze blank bonding risk coefficient is given here. The texture width values ​​and texture depth values ​​on the pattern texture after the first firing are obtained, respectively, point 1: texture width value w1=0.08mm, texture depth value h=0.12mm; point 2: texture width value w2=0.07mm, texture depth value h2=0.15mm; point 3: texture width value w3=0.09mm, texture depth value h3=0.13mm; point 4: Texture width value w4=0.085mm, texture depth value h4=0.14mm; Point 5: texture width value w5=0.075mm, texture depth value h5=0.16mm, the dimensionless ratios of the texture width value and the texture depth value corresponding to each point are r1=0.67, r2=0.47, r3=0.69, r4=0.61, r5=0.47, the average value of each ratio is 0.582, and the first texture characterization parameter is 0.582;

[0094] The texture width value and texture depth value of the same point on the pattern texture after the first firing are obtained, respectively, point 1: texture width value w1=0.05mm, texture depth value h=0.2mm; point 2: texture width value w2=0.04mm, texture depth value h2=0.18mm; point 3: texture width value w3=0.06mm, texture depth value h3=0.21mm; point 4: texture width value w4=0.055mm, texture depth value h4=0.19mm; point 5: texture width value w5=0.045mm, texture depth value h5=0.22mm, the dimensionless ratios of the texture width value and the texture depth value corresponding to each point are r1=0.25, r2=0.22, r3=0.29, r4=0.29, r5=0.2, the average value of each ratio is 0.25, and the second texture characterization parameter is 0.25;

[0095] The glaze blank bonding risk coefficient is the absolute value of the difference between the first texture characterization parameter and the second texture characterization parameter, which is 0.332.

[0096] Specifically, see Figure 3 As shown, it is a logic flow chart for determining whether there is an abnormal bonding risk at the glaze blank interface of a ceramic according to an embodiment of the present invention. The process of determining whether there is an abnormal bonding risk at the glaze blank interface of the ceramic includes:

[0097] If the glaze blank bonding risk coefficient corresponding to each characteristic texture area of ​​the ceramic does not meet the normal texture condition, it is determined that the glaze blank interface of the ceramic has an abnormal bonding risk;

[0098] If the glaze blank bonding risk coefficient corresponding to each characteristic texture area of ​​the ceramic meets the normal texture condition, it is determined that there is no abnormal bonding risk at the glaze blank interface of the ceramic;

[0099] The normal texture condition is that the glaze blank bonding risk coefficient corresponding to the characteristic texture area does not exceed a preset glaze blank bonding risk threshold.

[0100] In particular, the present invention determines whether there is a risk of abnormal bonding at the glaze blank interface of the ceramic by comparing the texture characterization parameters of each characteristic texture area before and after the first firing. It is understandable that firing will cause physical and chemical changes in the internal structure and texture of the ceramic. If the ratio of texture width and depth before and after firing is found to change, it means that the shape of the texture has changed, indicating that there may be a risk of inconsistency in the expansion and contraction of the glaze and blank in the subsequent secondary firing. The present invention determines whether there is a risk of abnormal bonding at the glaze blank interface of the ceramic by comparing the texture characterization parameters of each characteristic texture area before and after the first firing, thereby achieving rapid identification of glaze blank bonding risks, adaptive adjustment of subsequent processing parameters, and improving the processing efficiency of surface pattern processing of ceramic products and the accuracy of processing technology.

[0101] Specifically, the preset glaze blank bonding risk threshold value may be set by a person skilled in the art based on experimental data of several different glaze blank bonding risk coefficients. Preferably, the glaze blank bonding risk threshold value may be 0.05.

[0102] Specifically, the process of determining the glazing order of each characteristic texture area includes:

[0103] Obtaining texture characterization parameters corresponding to the initial time of each feature texture area in a plurality of feature monitoring cycles, and texture characterization parameters corresponding to the end time of the feature monitoring cycles;

[0104] Calculating the absolute value of the difference between the texture characterization parameter corresponding to the initial moment of the feature monitoring period and the texture characterization parameter corresponding to the termination moment of the feature monitoring period, and determining the absolute value of the difference as the texture characterization parameter change amount;

[0105] Screening the characteristic monitoring periods corresponding to the texture characterization parameter changes that meet the glazing conditions in the texture characterization parameter changes of each characteristic texture area, and determining the glazing order of each characteristic texture area according to the sequence of the characteristic monitoring periods in the time dimension;

[0106] The glazing condition is that the change in the texture characterization parameter does not exceed a preset texture change standard value for the first time.

[0107] Specifically, the feature monitoring period can be set by technicians in this field according to the processing accuracy of the surface pattern of the ceramic product. The higher the accuracy requirement, the shorter the preset feature monitoring period. Preferably, the feature monitoring period can be 2 hours.

[0108] Specifically, the preset texture change standard value can be set by technical personnel in this field according to the processing accuracy of the surface pattern of the ceramic product. The higher the accuracy requirement, the smaller the preset texture change standard value. Preferably, the texture change standard value can be 0.01.

[0109] Specifically, a specific embodiment of determining the glazing order of each characteristic texture area is given here. The texture characterization parameters corresponding to the initial moment in each characteristic monitoring period corresponding to the characteristic texture area A and the texture characterization parameters corresponding to the termination moment are respectively: in the first characteristic monitoring period, the texture characterization parameter corresponding to the initial moment is 0.27, and the texture characterization parameter corresponding to the termination moment is 0.24; in the second characteristic monitoring period, the texture characterization parameter corresponding to the initial moment is 0.24, and the texture characterization parameter corresponding to the termination moment is 0.23; in the third characteristic monitoring period, the texture characterization parameter corresponding to the initial moment is 0.23, and the texture characterization parameter corresponding to the termination moment is 0.22; in the fourth characteristic monitoring period, the texture characterization parameter corresponding to the initial moment is 0.22, and the texture characterization parameter corresponding to the termination moment is 0.22;

[0110] The texture characterization parameters corresponding to the initial moment and the texture characterization parameters corresponding to the termination moment in each feature monitoring cycle corresponding to the feature texture area B are: in the first feature monitoring cycle, the texture characterization parameter corresponding to the initial moment is 0.32, and the texture characterization parameter corresponding to the termination moment is 0.28; in the second feature monitoring cycle, the texture characterization parameter corresponding to the initial moment is 0.28, and the texture characterization parameter corresponding to the termination moment is 0.25; in the third feature monitoring cycle, the texture characterization parameter corresponding to the initial moment is 0.25, and the texture characterization parameter corresponding to the termination moment is 0.24; in the fourth feature monitoring cycle, the texture characterization parameter corresponding to the initial moment is 0.24, and the texture characterization parameter corresponding to the termination moment is 0.24;

[0111] The texture characterization parameters corresponding to the initial moment in each feature monitoring cycle corresponding to the feature texture area C, and the texture characterization parameters corresponding to the termination moment are respectively: in the first feature monitoring cycle, the texture characterization parameter corresponding to the initial moment is 0.34, and the texture characterization parameter corresponding to the termination moment is 0.29; in the second feature monitoring cycle, the texture characterization parameter corresponding to the initial moment is 0.29, and the texture characterization parameter corresponding to the termination moment is 0.25; in the third feature monitoring cycle, the texture characterization parameter corresponding to the initial moment is 0.25, and the texture characterization parameter corresponding to the termination moment is 0.22; in the fourth feature monitoring cycle, the texture characterization parameter corresponding to the initial moment is 0.22, and the texture characterization parameter corresponding to the termination moment is 0.21;

[0112] The characteristic monitoring period corresponding to the change in texture characterization parameters that meet the glazing conditions of characteristic texture area A is the second characteristic monitoring period, the characteristic monitoring period corresponding to the change in texture characterization parameters that meet the glazing conditions of characteristic texture area B is the third characteristic monitoring period, and the characteristic monitoring period corresponding to the change in texture characterization parameters that meet the glazing conditions of characteristic texture area C is the fourth characteristic monitoring period. Therefore, the glazing order of each characteristic texture area is characteristic texture area A, characteristic texture area B, and characteristic texture area C.

[0113] When the characteristic monitoring period corresponding to the texture characterization parameter change amount that meets the glazing conditions of the characteristic texture area D is the second characteristic monitoring period, and the characteristic monitoring period corresponding to the texture characterization parameter change amount that meets the glazing conditions of the characteristic texture area E is also the second characteristic monitoring period, the characteristic texture area D and the characteristic texture area E are glazed at the same time.

[0114] Specifically, the process of determining the key sequence and obtaining the grayscale value change of the characteristic texture area corresponding to the key sequence before and after the surface glazing includes:

[0115] Calculating the gray value difference of the characteristic texture area corresponding to the key sequence before and after the surface is glazed, and determining the gray value difference as the gray value variation;

[0116] The key sequence is the first glazing and the last glazing in the glazing sequence.

[0117] Specifically, a specific embodiment of determining the characteristic texture area corresponding to the key order is given here. The characteristic texture area A and the characteristic texture area C are the first and last in the glazing order. These two areas are the characteristic texture areas corresponding to the key order.

[0118] Specifically, the process of determining whether the ceramic has abnormal glaze rheology and adjusting the temperature of the drying process includes:

[0119] If the comparison of the gray value changes corresponding to the key sequence does not meet the drying conditions, it is determined that the ceramic has glaze rheological anomaly and the temperature of the drying process is adjusted according to the gray value change difference of the key sequence;

[0120] If the comparison of the gray value changes corresponding to the key sequence meets the drying condition, it is determined that the ceramic does not have glaze rheological anomaly;

[0121] Wherein, the drying condition is that the difference of the gray value variation of the key sequence does not exceed a preset gray value threshold;

[0122] The temperature increase amount is positively correlated with the gray value change difference.

[0123] Specifically, the preset grayscale value threshold can be set by technicians in this field according to the processing accuracy of the surface pattern of the ceramic product. The higher the accuracy requirement, the smaller the preset grayscale value threshold. Preferably, the grayscale value threshold can be 10.

[0124] Specifically, see Figure 4 As shown, it is a structural block diagram of a ceramic product surface pattern processing system according to an embodiment of the present invention. The present invention also provides a ceramic product surface pattern processing system, including:

[0125] A feature recognition module, which is used to obtain the regional feature value of each texture area, the glaze blank combination risk coefficient of each characteristic texture area, and the gray value change amount of the characteristic texture area;

[0126] Specifically, the present invention does not limit the specific structure of the feature recognition module. Preferably, it can be implemented by an industrial camera in conjunction with an image processor to determine the regional feature value based on the spacing between surface textures and the curvature of each surface point, determine the glaze blank bonding risk coefficient based on the texture width value and the texture depth value, and determine the grayscale value change, which will not be repeated here.

[0127] A feature determination module, which is connected to the feature recognition module and is used to screen the feature texture area and determine whether there is an abnormal bonding risk at the ceramic glaze blank interface;

[0128] Specifically, the present invention does not limit the specific structure of the feature determination module. Preferably, it can be a programmable logic processor for screening characteristic texture areas and determining whether there is an abnormal bonding risk at the ceramic glaze interface, which will not be elaborated here.

[0129] A process adjustment module, which is connected to the feature recognition module and the feature determination module respectively, to determine the glazing order of each feature texture area, and to select the feature texture area corresponding to the key order, to determine whether the ceramic has glaze rheology anomaly and to adjust the temperature of the drying process;

[0130] Specifically, the present invention does not limit the specific structure of the process adjustment module. Preferably, it can be implemented by a microprocessor in conjunction with a temperature component. The microprocessor determines the glazing order of each characteristic texture area, and screens the characteristic texture areas corresponding to the key order to determine whether the ceramic has glaze slurry rheology anomalies, and controls the temperature adjustment of the temperature component. It will not be repeated here.

[0131] The firing module is respectively connected to the feature recognition module, the feature determination module, and the process adjustment module, and is used to fire the ceramic to be processed.

[0132] Specifically, the present invention does not limit the specific structure of the firing module. Preferably, it can be an electric kiln, which is widely used in the field of ceramic firing technology and will not be described in detail here.

[0133] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0134] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for processing a surface pattern of a ceramic product, characterized in that: include: Carving a pattern texture on the surface of the ceramic to be processed, dividing the pattern texture into a plurality of texture regions, and screening characteristic texture regions according to regional characteristic values ​​corresponding to the texture regions; The regional characteristic value is determined according to the texture spacing and the surface curvature within the texture region; The engraved ceramic is fired for the first time, and the comparison of the texture characterization parameters of each characteristic texture area before and after the first firing is obtained to determine the glaze blank bonding risk coefficient of the characteristic texture area, and determine whether there is an abnormal bonding risk at the glaze blank interface of the ceramic; glazing the surface of the ceramic that has completed the first firing, in response to the presence of abnormal bonding risk at the interface of the glaze blank, determining the glazing order of each characteristic texture area according to the change amount of the texture characterization parameter of each characteristic texture area within a number of characteristic monitoring cycles, and screening the characteristic texture areas corresponding to the key order; Drying the ceramics after surface glazing, obtaining the gray value change of the characteristic texture area corresponding to the key sequence before and after surface glazing, judging whether the ceramics have glaze rheological anomaly according to the comparison of several gray value changes and adjusting the temperature of the drying process; The dried ceramic is fired for the second time to obtain the target ceramic product.

2. The method for processing a surface pattern of a ceramic product according to claim 1, characterized in that: The process of determining the regional feature value corresponding to the texture region includes: Obtaining an average value of the spacing between textures in the texture area and an average value of the curvature of the ceramic surface; A ratio of the average spacing value to the average curvature value is calculated, and the ratio is determined as the regional characteristic value.

3. The method for processing a surface pattern of a ceramic product according to claim 2, characterized in that: The process of screening characteristic texture areas includes: If the regional feature value corresponding to the texture region does not meet the texture non-dominant condition, the texture region is screened as a feature texture region; The texture non-explicit condition is that the regional characteristic value exceeds a preset regional characteristic reference value.

4. The method for processing a surface pattern of a ceramic product according to claim 3, characterized in that: The process of determining the texture characterization parameters of the characteristic texture area includes: Acquire texture width values ​​and texture depth values ​​of a plurality of points on the pattern texture in the characteristic texture area; Calculate the ratio of the texture width value and the texture depth value corresponding to each point; The average value of the ratios is determined as the texture characterization parameter.

5. The method for processing a surface pattern of a ceramic product according to claim 4, characterized in that: The process of determining the glaze bonding risk coefficient of the characteristic texture area includes: Acquiring texture characterization parameters of each characteristic texture region before the first firing, and determining the texture characterization parameters as first texture characterization parameters; Acquire texture characterization parameters of each characteristic texture region after the first firing, and determine the texture characterization parameters as second texture characterization parameters; The absolute value of the difference between the first texture characterization parameter and the second texture characterization parameter corresponding to each characteristic texture area is calculated, and the absolute value of the difference is determined as the glaze blank bonding risk coefficient.

6. The method for processing a surface pattern of a ceramic product according to claim 5, characterized in that: The process of determining whether there is an abnormal bonding risk at the glaze blank interface of the ceramic comprises: If the glaze blank bonding risk coefficient corresponding to each characteristic texture area of ​​the ceramic does not meet the normal texture condition, it is determined that the glaze blank interface of the ceramic has an abnormal bonding risk; The normal texture condition is that the glaze blank bonding risk coefficient corresponding to the characteristic texture area does not exceed a preset glaze blank bonding risk threshold.

7. The method for processing a surface pattern of a ceramic product according to claim 6, characterized in that: The process of determining the glazing order for each characteristic texture area includes: Obtaining texture characterization parameters corresponding to the initial time of each feature texture area in a plurality of feature monitoring cycles, and texture characterization parameters corresponding to the end time of the feature monitoring cycles; Calculating the absolute value of the difference between the texture characterization parameter corresponding to the initial moment of the feature monitoring period and the texture characterization parameter corresponding to the termination moment of the feature monitoring period, and determining the absolute value of the difference as the texture characterization parameter change amount; Screening the characteristic monitoring periods corresponding to the texture characterization parameter changes that meet the glazing conditions in the texture characterization parameter changes of each characteristic texture area, and determining the glazing order of each characteristic texture area according to the sequence of the characteristic monitoring periods in the time dimension; The glazing condition is that the change in the texture characterization parameter does not exceed a preset texture change standard value for the first time.

8. The method for processing a surface pattern of a ceramic product according to claim 7, characterized in that: The process of determining the key sequence and obtaining the gray value change of the characteristic texture area corresponding to the key sequence before and after the surface is glazed includes: Calculating the gray value difference of the characteristic texture area corresponding to the key sequence before and after the surface is glazed, and determining the gray value difference as the gray value variation; The key sequence is the first glazing and the last glazing in the glazing sequence.

9. The method for processing a surface pattern of a ceramic product according to claim 8, characterized in that: The process of determining whether the ceramic has abnormal glaze rheology and adjusting the temperature of the drying process includes: If the comparison of the gray value changes corresponding to the key sequence does not meet the drying conditions, it is determined that the ceramic has glaze rheological anomaly and the temperature of the drying process is adjusted according to the gray value change difference of the key sequence; Wherein, the drying condition is that the difference of the gray value variation of the key sequence does not exceed a preset gray value threshold; The temperature increase amount is positively correlated with the gray value change difference.

10. A ceramic product surface pattern processing system, used to execute the ceramic product surface pattern processing method according to any one of claims 1 to 9, characterized in that: include: A feature recognition module, which is used to obtain the regional feature value of each texture area, the glaze blank combination risk coefficient of each characteristic texture area, and the gray value change amount of the characteristic texture area; A feature determination module, which is connected to the feature recognition module and is used to screen the feature texture area and determine whether there is an abnormal bonding risk at the ceramic glaze blank interface; A process adjustment module, which is connected to the feature recognition module and the feature determination module respectively, to determine the glazing order of each feature texture area, and to screen the feature texture areas corresponding to the key order, to determine whether the ceramic has glaze rheological anomalies and to adjust the temperature of the drying process; The firing module is respectively connected to the feature recognition module, the feature determination module, and the process adjustment module, and is used to fire the ceramic to be processed.

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