Numerical control machining adjusting method and system for double-color mold

Abstract

The invention provides a numerical control machining adjusting method and system for a double-color mold. The numerical control machining adjusting method comprises the steps that injection molding initial data in the double-color injection molding process is obtained; extracting first injection information of double-shot injection molding and second injection information of double-shot injection molding according to the injection molding initial data; the pressure maintaining pressure variation in the pressure maintaining stage in the injection molding process is determined according to the mold material index during injection molding, and the saturation shrinkage value of the injection molding part after first-color injection molding is determined through the pressure maintaining pressure variation and first injection information of double-color injection molding; according to the cooling characteristic sequence, the sprue matching degree between the contact surfaces after two times of injection molding is determined, and then the buckling deformation amount of the injection molding part after second-color injection molding is determined according to the sprue matching degree and the dwell pressure variation amount; the combination correlation degree of the double-color injection molding part at the combination position is determined through the saturation shrinkage value and the buckling deformation amount, the injection molding posture of the double-color injection molding mold is adjusted based on the combination correlation degree, adjustment of the mold operation posture in double-color injection molding can be achieved, and the combination performance of two injection molding materials during double-color injection molding is improved.

Description

Technical Field

[0001] The present application relates to the field of injection molding technology, and more specifically, to a CNC machining adjustment method and system for a two-color mold. Background Art

[0002] With the rapid development of plastics industry technology, the application scope of plastic products is constantly expanding, and the demand for plastic products is also increasing year by year. To meet the production volume requirements of plastic products while ensuring their quality, two-shot injection molding has gained widespread application due to its advantages such as high production efficiency and excellent product appearance. However, due to the different operating temperatures of the two cavities of the two-shot injection mold, the holding pressure process of two-shot injection molding is subject to pressure fluctuations. During the holding pressure process, the fluctuation in holding pressure can cause warping and deformation of the molded parts. In addition, the interface between the two cavities of the molded parts can lead to poor bonding between the two injection materials during two-shot injection molding. Summary of the Invention

[0003] The present application provides a CNC machining adjustment method and system for a two-color mold, which realizes the adjustment of the mold injection posture in two-color injection molding, thereby effectively improving the bonding of the two injection molding materials during two-color injection molding.

[0004] In a first aspect, the present application provides a CNC machining adjustment method for a two-color mold, comprising the following steps: Responding to data acquisition instructions, obtaining initial injection data during the two-color injection molding process; extracting first shot information of the two-color injection molding and second shot information of the two-color injection molding according to the initial injection molding data; Obtaining mold material indicators during injection molding, determining a holding pressure change during a holding pressure phase of the injection molding process based on the mold material indicators during injection molding, and determining a saturated shrinkage value of the molded part after first-color injection molding using the holding pressure change and first-shot information of two-color injection molding; Determining a cooling characteristic sequence of the injection molding material based on the second shot information of the two-color injection molding, determining a gate matching degree between contact surfaces after the two injection moldings based on the cooling characteristic sequence, and further determining a warpage deformation amount of the injection molded part after the second-color injection molding based on the gate matching degree and the change in the holding pressure; The bonding correlation degree of the two-color injection molded parts at the bonding point is determined by the saturation shrinkage value and the warpage deformation amount, and the injection posture of the two-color injection mold is adjusted based on the bonding correlation degree.

[0005] In some embodiments, extracting first shot information and second shot information of two-color injection molding according to the initial injection molding data specifically includes: Acquiring the initial injection molding data; Determine a first injection molding feature and a second injection molding feature of the initial injection molding data; screening the initial injection molding data according to the first injection molding feature to obtain first shot information of two-color injection molding; The initial injection molding data is screened according to the second injection molding feature to obtain second shot information of the two-color injection molding.

[0006] In some embodiments, determining the change in holding pressure during the holding stage of the injection molding process based on mold material indicators during injection molding specifically includes: Obtaining mold material indicators, including melt index, mold temperature change, initial volume of the injection molded part, and final volume of the injection molded part; Determining the fluidity of the injection molding material according to the mold temperature change and the melt index; Determining the molding shrinkage of the injection molding material according to the initial volume of the injection molding part and the final volume of the injection molding part; The change in holding pressure during the holding stage of the injection molding process is determined according to the fluidity of the injection molding material and the molding shrinkage of the injection molding material.

[0007] In some embodiments, determining the saturation shrinkage value of the molded part after the first-color injection molding by using the holding pressure variation and the first-shot information of the two-color injection molding specifically includes: Obtain the change in holding pressure during the holding phase of the injection molding process; Get the first shot information during two-color injection molding; Determine the saturation shrinkage factor during the first color injection; The saturation shrinkage value of the injection molded part after the first color injection molding is determined according to the change of the holding pressure in the holding stage of the injection molding process, the first shot information of the two-color injection molding and the saturation shrinkage factor of the first color injection.

[0008] In some embodiments, the two-color injection molded part refers to a product formed by combining two colors of materials through injection molding.

[0009] In some embodiments, the initial injection molding data in the two-color injection molding process is obtained through an initial injection molding data log file.

[0010] In some embodiments, the initial injection data during the two-color injection molding process includes injection temperature, mold temperature, holding time, and cooling time.

[0011] In a second aspect, the present application provides a CNC machining and adjustment system for a two-color mold, comprising: An acquisition module, for acquiring initial injection molding data during the two-color injection molding process after responding to a data acquisition instruction; An extraction module, configured to extract first shot information and second shot information of the two-color injection molding according to the initial injection molding data; a processing module, configured to obtain mold material indicators during injection molding, determine a holding pressure change during a holding stage of the injection molding process based on the mold material indicators, and determine a saturation shrinkage value of the molded part after first-color injection molding based on the holding pressure change and first-shot information of two-color injection molding; The processing module is further configured to determine a cooling characteristic sequence of the injection molding material based on the second shot information of the two-color injection molding, determine a gate matching degree between contact surfaces after the two injection moldings based on the cooling characteristic sequence, and further determine a warpage deformation amount of the injection molded part after the second-color injection molding based on the gate matching degree and the change in the holding pressure; The adjustment module is used to determine the bonding correlation degree of the two-color injection molded parts at the bonding point according to the saturation shrinkage value and the warpage deformation amount, and adjust the injection posture of the two-color injection mold based on the bonding correlation degree.

[0012] In a third aspect, the present application provides a computer device comprising a memory and a processor, wherein the memory stores a code, and the processor is configured to obtain the code and execute the above-mentioned CNC machining adjustment method for a two-color mold.

[0013] In a fourth aspect, the present application provides a computer-readable storage medium storing a computer program, which implements the above-mentioned CNC machining adjustment method for a two-color mold when executed by a processor.

[0014] The technical solutions provided by the embodiments disclosed in this application have the following beneficial effects: In the CNC machining adjustment method and system of the two-color mold provided by the present application, first, after responding to the data acquisition instruction, the initial injection data in the two-color injection molding process is obtained, and the first shot information of the two-color injection molding and the second shot information of the two-color injection molding are extracted based on the initial injection data. Secondly, the mold material index during injection molding is obtained, and the holding pressure change in the holding pressure stage during the injection molding process is determined based on the mold material index during injection molding. The saturated shrinkage value of the injection molded part after the first color injection molding is determined by the holding pressure change and the first shot information of the two-color injection molding. The saturated shrinkage value indicates that after the first color injection molding process is completed and fully solidified, the molded product The shrinkage ratio of the size relative to the mold size, again, the cooling feature sequence of the injection molding material is determined through the second shot information of the two-color injection molding, and the gate matching between the contact surfaces after the two injection moldings is determined according to the cooling feature sequence, and then the warpage deformation of the injection molded part after the second color injection molding is determined by the gate matching and the change in the holding pressure. The warpage deformation indicates the degree of bending or deformation of the injection molded part under specific conditions after the injection molding is completed. Finally, the bonding correlation of the two-color injection molded parts at the joint is determined by the saturated shrinkage value and the warpage deformation, and the injection posture of the two-color injection mold is adjusted based on the bonding correlation.

[0015] It can be seen that in the process of combining the two injection molding materials in two-color injection molding, in order to eliminate the influence of improper mold posture adjustment on the bonding of the two materials during two-color injection molding, and thus balance the shrinkage and fluidity requirements of the injection molding materials during the injection molding process, as well as balance the bonding of the two injection molding materials at the joint during the injection molding process, the saturated shrinkage value of the injection molded part after the first-color injection molding is determined by the holding pressure variation and the first shot information of the two-color injection molding, and the saturated shrinkage value indicates the shrinkage ratio of the molded product size relative to the mold size after the first-color injection molding process is completed and fully solidified. Then, the gate matching degree and the holding pressure variation are used to determine the second-color The quality of the injection molded parts is measured by the warpage deformation of the injection molded parts after injection molding. The warpage deformation indicates the degree of bending or deformation of the injection molded parts under specific conditions after the injection molding is completed. It is used to evaluate the flexibility and softness of the injection molded parts. The greater the flexibility and softness, the higher the bending or deformation ability of the product. Finally, in order to ensure the bonding quality of the two materials on the contact surface in two-color injection molding, the bonding correlation at the joint of the injection molded parts of the two injection molding materials after two-color injection molding is determined based on the saturated shrinkage value and the flexible warpage. That is, the injection posture of the two-color injection mold is adjusted according to the bonding correlation, thereby effectively improving the bonding of the two injection molding materials during two-color injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exemplary flow chart of a method for adjusting CNC machining of a two-color mold according to some embodiments of the present application; Figure 2 This is a schematic diagram of an exemplary process for determining a change in holding pressure during a holding stage of an injection molding process according to some embodiments of the present application; Figure 3 is a schematic diagram of an exemplary process for determining gate matching between contact surfaces after two injection moldings according to some embodiments of the present application; Figure 4 1 is a schematic structural diagram of a CNC machining adjustment system for a two-color mold according to some embodiments of the present application; Figure 5 It is a structural schematic diagram of a computer device for implementing a numerical control machining adjustment method for a two-color mold according to some embodiments of the present application. DETAILED DESCRIPTION

[0017] The core of this application is to obtain the initial injection data in the two-color injection molding process after responding to the data acquisition instruction; extract the first shot information and the second shot information of the two-color injection molding according to the initial injection data; obtain the mold material index during injection molding, determine the holding pressure change in the holding stage of the injection molding process according to the mold material index during injection molding, and determine the saturated shrinkage value of the injection molded part after the first color injection molding through the holding pressure change and the first shot information of the two-color injection molding; determine the cooling feature sequence of the injection molding material through the second shot information of the two-color injection molding, determine the gate matching between the contact surfaces after the two injections according to the cooling feature sequence, and then determine the warpage deformation of the injection molded part after the second color injection molding according to the gate matching and the holding pressure change; determine the bonding correlation of the two-color injection molded parts at the joint through the saturated shrinkage value and the warpage deformation, and adjust the injection posture of the two-color injection mold based on the bonding correlation, thereby realizing the adjustment of the mold operation posture in the two-color injection molding, and effectively improving the bonding of the two injection materials during two-color injection molding.

[0018] In order to better understand the above technical solution, the following will be combined with the accompanying drawings and specific implementation methods to describe the above technical solution in detail. Figure 1 , which is an exemplary flow chart of a CNC machining adjustment method for a two-color mold according to some embodiments of the present application. The CNC machining adjustment method 100 for a two-color mold mainly includes the following steps: In step 101, in response to a data acquisition instruction, initial injection molding data in a two-color injection molding process is acquired.

[0019] In a specific implementation, after receiving a data acquisition instruction, the acquisition device in the two-color injection molding process obtains the initial injection data of the two-color injection molding process through the injection initial data log file, wherein the initial injection data represents the basic parameters for controlling the two-color injection molding process, and the parameters include: injection temperature, mold temperature, holding time and cooling time.

[0020] Among them, it should be noted that, in this application, the injection temperature refers to the temperature for controlling the melting of the plastic material during the injection molding process, the mold temperature refers to the temperature set on the mold surface during the injection molding process, and the control of the mold temperature is crucial to the fluidity and fullness of the plastic material during the injection molding process and the quality of the final product. The holding time refers to the time after the plastic material is injected into the mold cavity, maintaining a certain pressure to ensure that the plastic fills the entire mold cavity and reaches the ideal density and surface quality. The cooling time refers to the time required for the plastic material to cool and solidify after filling the mold and completing the filling. In addition, before each injection molding, it is necessary to adjust the parameters according to the quality of the injection molded part after the previous injection molding before performing the next injection molding. In this application, the initial injection molding data is the injection molding data set before the start of each two-color injection molding within one month.

[0021] It should be noted that the two-color injection molding in this application is to heat two plastic particles of different colors through a heater to melt them into a fluid state, and then inject them into the mold cavity by spraying, and finally cool and form them into a two-color injection molded part. The two-color injection molded part refers to a product formed by combining two colors of materials by injection molding. During the injection molding process, the first color is first sprayed in the rotating two-color mold in the mold. After the first color is formed, the mold core is ejected, and the cylinder rack drives the mold core to rotate 180° and spray the second color. After the second color is formed, the mold core is ejected and the product is taken out. The mold core is rotated 180° and injection molding is continued, and the cycle is repeated. Among them, the mold core refers to the "mold core" in the mold, and the mold core refers to the necessary component for setting the cavity or complex structure in the mold.

[0022] In step 102 , first shot information of the two-color injection molding and second shot information of the two-color injection molding are extracted according to the initial injection molding data.

[0023] It should be noted that, in this application, the first shot information represents a set of all relevant parameters in the first injection stage of the two-color injection molding process, and the second shot information represents a set of all relevant parameters in the second injection stage of the two-color injection molding process.

[0024] Among them, in the first injection molding stage, the injection molding machine injects the first plastic material into the corresponding position of the mold to form a part of the injection molded part. In the second injection molding stage, the injection molding machine injects the second plastic material into the mold and combines it with the material in the first injection molding stage to complete the molding of the two-color injection molded part. In the specific implementation, the first shot information and the second shot information are extracted through the initial injection molding data, and the analysis is performed to ensure the molding quality and consistency of the two-color injection molded part.

[0025] In some embodiments, extracting the first shot information and the second shot information of the two-color injection molding according to the initial injection molding data can be achieved by using the following steps: Acquiring the initial injection molding data; Determine a first injection molding feature and a second injection molding feature of the initial injection molding data; screening the initial injection molding data according to the first injection molding feature to obtain first shot information of two-color injection molding; The initial injection molding data is screened according to the second injection molding feature to obtain second shot information of the two-color injection molding.

[0026] It should be noted that each basic parameter in the injection molding initial data in the present application corresponds to a first injection molding feature. In specific implementation, the first injection molding feature of the injection molding initial data is determined, that is: a basic parameter in the injection molding initial data is selected, and the average value of the basic parameter on each day is determined, and then a two-dimensional coordinate system is established according to the average value of each day and the date corresponding to each day (that is: the average value of each day is used as the vertical axis of the two-dimensional coordinate system, and the date corresponding to each day is used as the horizontal axis of the two-dimensional coordinate system), and each average value in the two-dimensional coordinate system is connected using a smooth curve, and the connected curve is used as the first injection molding feature corresponding to the basic parameter, and the first injection molding features corresponding to the remaining basic parameters are continued to be determined.

[0027] In addition, it should be noted that the first injection molding feature in the present application can reflect the average change of the corresponding basic parameters in the first injection molding stage.

[0028] In addition, in a specific implementation, the initial injection molding data is filtered according to the first injection molding feature to obtain the first shot information of the two-color injection molding. This can be achieved in the following manner: first, a data filtering range is pre-set in the two-dimensional coordinate system corresponding to the first injection molding feature, and all basic parameters within the data filtering range are used as the first shot information of the two-color injection molding.

[0029] In some embodiments, a data screening range is pre-set in the two-dimensional coordinate system corresponding to the first injection molding feature, that is, a screening algorithm can be used to set the data screening range, for example, an interval screening method, a screening method based on machine learning, etc. In this embodiment, the interval screening method is used, and the range of ±30% of each type of basic parameter from the first injection molding feature is used as the data screening range corresponding to the basic parameter of this type. All basic parameters are placed in the corresponding coordinate system respectively, and the basic parameters within the data screening range corresponding to each basic parameter are retained, and the retained basic parameters are used as the first shot information of the two-color injection molding. In other embodiments, the first shot information of the two-color injection molding can also be determined according to other methods, which are not limited here.

[0030] It should be noted that each basic parameter in the injection molding initial data in the present application corresponds to a second injection molding feature. In specific implementation, the second injection molding feature of the injection molding initial data is determined, that is: a basic parameter in the injection molding initial data is selected, and the average value of the basic parameter on each day is determined, and then a two-dimensional coordinate system is established according to the average value of each day and the date corresponding to each day (that is: the average value of each day is used as the vertical axis of the two-dimensional coordinate system, and the date corresponding to each day is used as the horizontal axis of the two-dimensional coordinate system), and each average value in the two-dimensional coordinate system is connected using a smooth curve, and the connected curve is used as the second injection molding feature corresponding to the basic parameter, and the second injection molding features corresponding to the remaining basic parameters are continued to be determined.

[0031] In addition, it should be noted that the second injection molding characteristics in the present application can reflect the average changes of the corresponding basic parameters in the second injection molding stage.

[0032] Furthermore, in a specific implementation, the initial injection molding data is filtered according to the second injection molding feature to obtain the second shot information for two-color injection molding. This can be achieved by: first, a data filtering range is pre-set in the two-dimensional coordinate system corresponding to the second injection molding feature, and all basic parameters within the data filtering range are used as the second shot information for two-color injection molding.

[0033] In some embodiments, a data screening range is pre-set in the two-dimensional coordinate system corresponding to the second injection molding feature, that is, a screening algorithm can be used to set the data screening range, for example, an interval screening method, a screening method based on machine learning, etc. In this embodiment, the interval screening method is used, and the range of ±30% of each type of basic parameter from the second injection molding feature is used as the data screening range corresponding to the basic parameter of this type. All basic parameters are placed in the corresponding coordinate system respectively, and the basic parameters within the data screening range corresponding to each basic parameter are retained, and the retained basic parameters are used as the second shot information of the two-color injection molding. In other embodiments, the second shot information of the two-color injection molding can also be determined according to other methods, which are not limited here.

[0034] In step 103, mold material indicators during injection molding are obtained, and a holding pressure change during a holding stage of the injection molding process is determined based on the mold material indicators during injection molding. The saturation shrinkage value of the injection molded part after the first color injection molding is determined based on the holding pressure change and the first shot information of the two-color injection molding.

[0035] It should be noted that in the two-color injection molding process, the key is to inject the two materials into the mold for combination, so it is particularly important to strictly control the mold material indicators during injection molding. In order to improve the quality of two-color injection molded parts, the two-color injection molding process needs to be adjusted according to the mold material indicators to meet the quality requirements of two-color injection molded parts.

[0036] In addition, it should be noted that the mold material indicators in this application represent the working parameters set when processing the mold and plastic during the two-color injection molding process.

[0037] In specific implementation, the mold material indicators during injection molding are obtained, that is, the mold material indicators during injection molding are obtained through the guiding requirements during injection molding and the plastic injection molding control manual. The mold material indicators include: melt index, mold temperature change, initial volume of injection molded parts, and final volume of injection molded parts.

[0038] The melt index refers to the ability of a plastic material to flow within a specified time under a certain temperature and load. Generally, the higher the melt index, the better the fluidity of the plastic, and the smaller the changes in injection pressure and holding pressure required during the molding process. The mold temperature change indicates the change in mold temperature during the injection molding process. The melt temperature indicates the temperature at which the plastic material reaches a molten state during the injection molding process. The plastic cooling time indicates the time it takes for the plastic in the mold to cool to room temperature after injection molding is completed.

[0039] It should be noted that in the two-shot injection molding process, in order to balance the shrinkage and fluidity requirements of the plastic material, the plastic in the mold needs to be held under pressure. At the beginning of the holding pressure, the holding pressure will be set to a higher value to ensure that the plastic material fully fills the mold and eliminates defects such as voids and bubbles. Over time, as the material solidifies, the holding pressure may need to be gradually reduced to reduce the internal stress and shrinkage deformation of the product. The changes in the holding pressure process are measured by the change in the holding pressure.

[0040] In the injection molding process, the holding pressure variation is an indicator of the pressure variation maintained during the holding phase of the injection molding process.

[0041] In some embodiments, reference Figure 2 As shown in FIG. 1 , this figure is a schematic diagram of an exemplary process for determining the change in holding pressure during the holding stage of an injection molding process according to some embodiments of the present application. In this embodiment, determining the change in holding pressure during the holding stage of an injection molding process can be achieved by using the following steps: In step 1031, the mold material indicators are obtained, including melt index, mold temperature change, initial volume of the injection molded part, and final volume of the injection molded part; In step 1032, the fluidity of the injection molding material is determined based on the mold temperature change and the melt index; In step 1033, the molding shrinkage of the injection molding material is determined according to the initial volume of the injection molding part and the final volume of the injection molding part; In step 1034 , a change in holding pressure during a holding phase of the injection molding process is determined based on the fluidity of the injection molding material and the molding shrinkage of the injection molding material.

[0042] In a specific implementation, the fluidity of the injection molding material is determined according to the mold temperature change and the melt index. The following method can be used, namely: three empirical constants are determined according to experimental data. The value range of the empirical constants depends on the specific situation. In this application, the value of the empirical constant is set between 0 and 1; then, a sum is obtained by multiplying the first empirical constant and the melt index, adding the second empirical constant and the mold temperature change, and adding the third empirical constant, and the sum is used as the fluidity of the injection molding material. For example, the melt index is 10g / 10min, the mold temperature change is 70°C, the first empirical constant is 0.5, the second empirical constant is 0.3, and the third empirical constant is 1. Then, the fluidity of the injection molding material is 0.5*10+0.3*70+1=27. In a specific implementation, other methods can also be used for determination, which is not limited here.

[0043] It should be noted that the fluidity of the injection molding material in this application represents an indicator of the flow performance of the plastic material during the injection molding process.

[0044] In a specific implementation, the molding shrinkage of the injection molding material is determined based on the initial volume of the injection molding part and the final volume of the injection molding part. In some embodiments, the molding shrinkage of the injection molding material can be determined by the following method: the difference between the initial volume of the injection molding part and the final volume of the injection molding part is calculated and then the ratio is calculated with the initial volume of the injection molding part. For example, the initial volume of the injection molding part is 1000cm 3 The final volume of the injection molded part is 950cm 3 , then the molding shrinkage of the injection molding material is (1000-950) / 1000=0.05, i.e., 5%. In other embodiments, the molding shrinkage of the injection molding material can also be determined according to other methods, which are not limited here. In actual operation, the molding shrinkage of the injection molding material may be affected by many factors, including material type, mold design, processing conditions (such as temperature and pressure), etc. Therefore, these factors need to be considered in actual measurement and calculation. The molding shrinkage of the injection molding material is usually expressed as a percentage. For example, a molding shrinkage of an injection molding material of 5% can be expressed as 0.05 or 5%. The initial volume of the injection molded part refers to the volume of the injection molded part when it is removed from the mold, and the final volume of the injection molded part refers to the volume of the injection molded part when it cools to room temperature.

[0045] It should be noted that the molding shrinkage rate of the injection molding material in this application represents an indicator of the change in the cooling rate of the plastic material during the cooling and solidification process.

[0046] In addition, it should be noted that in this application, when determining the change in holding pressure during the holding stage of the injection molding process, in order to make the calculation process more universal, a data processing algorithm can be used to perform dimensionless processing on the melt index, the fluidity of the injection molding material, and the molding shrinkage rate of the injection molding material. For example, similarity analysis, initial analysis, etc. are performed dimensionlessly, which is not limited here.

[0047] In the above embodiment, the change in the holding pressure during the holding stage of the injection molding process is determined based on the fluidity of the injection molding material and the molding shrinkage of the injection molding material. The following method can be used to achieve this: two empirical constants are determined based on the material properties and experimental data. For example, the first empirical constant is 100 and the second empirical constant is 500. Then, a calculation model is established to calculate the change in the holding pressure during the holding stage of the injection molding process, that is, the first empirical constant is multiplied by the inverse of the fluidity of the injection molding material, and the product is added to the second empirical constant multiplied by the molding shrinkage of the injection molding material to obtain a sum, and the sum is used as the injection molding process. For example, the first empirical constant is 100, the second empirical constant is 500, the fluidity of the injection molding material is 27, and the molding shrinkage of the plastic material is 0.05, then the holding pressure change in the holding pressure stage during the injection molding process is 100*1 / 27+500*0.05=28.7. The unit of the holding pressure change can be bar or psi, but for convenience of calculation, it can also be dimensionless, etc., which is not repeated here. In other embodiments, other methods can also be used to determine the holding pressure change in the holding pressure stage during the injection molding process, which is not limited here.

[0048] It should be noted that the number of data on the fluidity of the injection molding material and the molding shrinkage rate of the injection molding material in this application is the same as the number of times two-color injection molding is performed, that is, each time two-color injection molding is performed corresponds to one fluidity of the injection molding material and one molding shrinkage rate of the injection molding material.

[0049] It should be noted that the melt index in the mold material index can be found in relevant literature on plastic melting or injection molding technology. The melt index is the mass (in grams) of the material passing through a standard nozzle every 10 minutes under a certain temperature and pressure. The melt index is an important indicator for evaluating the fluidity of a polymer. A high melt index value generally indicates better fluidity of the material. The melt index value in this embodiment can also be normalized to between 0 and 1 according to actual conditions, and there is no specific limitation.

[0050] In some embodiments, determining the saturation shrinkage value of the molded part after the first-color injection molding by using the holding pressure variation and the first-shot information of the two-color injection molding can be achieved by the following steps: Obtain the change in holding pressure during the holding phase of the injection molding process; Get the first shot information during two-color injection molding; Determine the saturation shrinkage factor during the first color injection; The saturation shrinkage value of the injection molded part after the first color injection molding is determined according to the change of the holding pressure in the holding stage of the injection molding process, the first shot information of the two-color injection molding and the saturation shrinkage factor of the first color injection.

[0051] It should be noted that the saturation shrinkage factor in this application indicates the degree of shrinkage of the plastic material after it is fully solidified. When the plastic material is cooled from the molten state and formed, shrinkage will occur, causing the size of the molded product to be slightly reduced.

[0052] In specific implementation, the saturated shrinkage factor during injection of the first color is determined, that is, the saturated shrinkage factor during injection of the first color can be determined by conducting actual injection molding tests, or the saturated shrinkage factor of the material can be obtained through data provided by the material manufacturer. In this application, the saturated shrinkage factor during injection of the first color is taken as 0.15. In other specific injection molding processes, it is selected and verified according to actual conditions, and is not limited here.

[0053] It should be noted that the saturated shrinkage value of the injection molded part after the first color injection molding in this application represents the shrinkage ratio of the molded product size relative to the mold size after the first color injection molding process is completed and fully solidified.

[0054] In a specific implementation, the saturated shrinkage value of the molded part after first-color injection molding is determined based on the change in holding pressure during the holding phase of the injection molding process, first-shot information during two-color injection molding, and a saturated shrinkage factor during the first-shot injection. Specifically, a data integration algorithm, such as principal component analysis or feature fusion, is first used to integrate the first-shot information during two-color injection molding into a single value representing the first-shot information, namely, the first-shot information integration value. Next, the saturated shrinkage value of the molded part after first-color injection molding is determined based on the following formula: saturated shrinkage value of the molded part after first-color injection molding = (saturated shrinkage factor * change in holding pressure) / first-shot information integration value.

[0055] In step 104, the cooling characteristic sequence of the injection molding material is determined based on the second shot information of the two-color injection molding, the gate matching degree between the contact surfaces after the two injection moldings is determined based on the cooling characteristic sequence, and the warpage deformation amount of the injection molded part after the second-color injection molding is determined based on the gate matching degree and the change in the holding pressure.

[0056] It should be noted that in the two-color injection molding process, the first shot is performed before the second shot. During the second shot, the information of the cooling and solidification of the first-color injection material plays a vital role in the quality of the two-color injection molded product. If the cooling time of the first-color injection material is too long, the second-color injection will have loose color connection. If the cooling time of the first-color injection material is too short, the second-color injection will have chaotic color connection, which directly affects the quality of the injection molded product. Therefore, determining the cooling characteristics of the two-color injection material plays a key role in the quality of the two-color injection molded parts.

[0057] In some embodiments, determining the cooling characteristic sequence of the injection molding material based on the second shot information of the two-color injection molding can be achieved by the following steps: Get the second shot information of two-color injection molding; determining a temperature characteristic according to the injection temperature and the mold temperature in the second information of the two-color injection molding; Determine the time feature according to the holding time and cooling time in the second information of the two-color injection molding; The temperature characteristics are mapped to the time characteristics and then arranged in ascending order to obtain a cooling characteristic sequence of the injection molding material.

[0058] In specific implementation, the temperature feature is determined based on the injection temperature and mold temperature in the second information of the two-color injection molding, that is, the temperature feature is obtained after analyzing the data of the injection temperature and the mold temperature. The analysis process is to plot the injection temperature and the mold temperature into a temperature-time curve, and then extract the temperature feature. In some embodiments, the ratio of the maximum slopes on the two curves can be used as the temperature feature. In other embodiments, other methods can also be selected to extract the temperature feature, which is not limited here.

[0059] It should be noted that the temperature characteristic in this application represents the temperature variation during the injection molding process, and the temperature variation is used to describe and analyze the temperature variation during the injection molding process.

[0060] In addition, in the specific implementation, the time feature is determined based on the holding time and cooling time in the second information of two-color injection molding, that is: the first holding time data and the first cooling time data are subtracted and then the absolute value is obtained, and the absolute value is used as the first time feature. All holding times and cooling times are traversed, and the above steps are repeated to obtain all time features.

[0061] It should be noted that the time characteristic in this application represents the variation related to the cooling time during the injection molding process, and the variation is used to describe and analyze the variation of the cooling time during the injection molding process.

[0062] In a specific implementation, the temperature characteristics are mapped to the time characteristics, and then arranged in ascending order to obtain the cooling characteristic sequence of the injection molding material, that is: all temperature characteristics are fitted to each temperature data, and a fitting algorithm can be used, for example, linear regression or polynomial fitting method is used for fitting, and then the fitted temperature data is mapped to the time characteristics, and the linear mapping method in the prior art can be used for mapping, and the data after mapping is arranged in ascending order to obtain the cooling characteristic sequence of the injection molding material.

[0063] It should be noted that the cooling feature sequence of the injection molding material in this application represents a data sequence composed of features associated with cooling during the injection molding process, and is used to record the cooling changes of the plastic material during the injection molding process.

[0064] In some embodiments, reference Figure 3 As shown in FIG. 1 , this figure is a schematic diagram of an exemplary process for determining the gate matching degree between the contact surfaces after two injection moldings according to some embodiments of the present application. In this embodiment, the gate matching degree can be determined by the following steps: In step 1041, a cooling characteristic sequence of the injection molding material is obtained; In step 1042, the data in the cooling feature sequence of the injection molding material is initialized to obtain an initialized cooling feature; In step 1043, a matching predicted amount of injection material is determined based on the initial cooling characteristics; In step 1044, a gate matching factor before the second shot in the injection molding process is determined; In step 1045, a gate matching amount is determined based on the matching prediction amount and the gate matching factor before the second shot; In step 1046, the gate matching amount is updated to obtain the gate matching degree between the contact surfaces after two injection moldings.

[0065] In specific implementation, the data in the cooling feature sequence of the injection molding material is initialized to obtain the initialized cooling feature. That is, multiple cooling sub-features can be randomly generated according to the initial probability distribution function, and the same weights are assigned to the cooling sub-features. The covariance between the cooling sub-features is calculated and the covariance is used as the initialized cooling feature.

[0066] It should be noted that the initialization cooling feature in this application refers to the change in the cooling amount of the injection material at the beginning of the second injection and after the completion of the first injection.

[0067] In addition, in a specific implementation, the matching prediction amount of the injection molding material is determined based on the initialization cooling characteristics. In some embodiments, a regression algorithm, such as support vector regression, polynomial regression, etc., can be used to predict the initialization cooling characteristics to obtain the matching prediction amount of the injection molding material.

[0068] It should be noted that the matching prediction of the injection molding material in this application refers to an indicator of the smooth connection between the two colors of materials at the gate when the second color is injected after the first color is completed during the injection molding process.

[0069] In addition, in a specific implementation, the gate matching factor before the second shot in the injection molding process is determined, that is: the gate matching factor before the second shot is extracted through the relevant parameters of the injection molding machine and the property parameters of the material through a fusion algorithm, for example, multi-parameter fusion. The value range of the gate matching factor before the second shot is between 0 and 1. In this embodiment, the gate matching factor before the second shot is set to 0.4.

[0070] It should be noted that the gate matching factor before the second shot in this application refers to an indicator used to evaluate the degree of gate matching between the second shot plastic and the first shot during the two-shot injection molding process.

[0071] In addition, in the specific implementation, the gate matching amount is determined based on the matching prediction amount and the gate matching factor before the second shot, that is, the gray correlation coefficient algorithm in the prior art can be used to determine the gate matching amount. In other embodiments, other methods can be used to determine it, which is not limited here.

[0072] It should be noted that the gate matching amount in this application refers to an indicator of the contact area, shape similarity, adhesion, etc. of the second shot plastic with the first shot plastic when filling the gate.

[0073] Furthermore, the size of the gate alignment often directly impacts the appearance, internal structure, and performance of two-shot molded products. A high gate alignment ensures that the second shot is fully filled and effectively blends with the first shot, minimizing defects like seams and bubbles, thereby improving product quality. Conversely, a low gate alignment can lead to insufficient or uneven filling of the second shot, resulting in surface defects and loose bonding.

[0074] In addition, during the specific implementation, the gate matching amount is updated to obtain the gate matching degree between the contact surfaces after two injection moldings, that is, a resampling algorithm can be used, such as synthetic sampling, integrated sampling, etc., and the normalized weights generated by the historical gate matching amount are used to eliminate the sub-features in the initialized cooling feature, thereby forming a new gate matching amount, and the new gate matching amount is used as the gate matching degree. The value range of the gate matching degree is between 0 and 1, and is selected according to the specific situation of the injection molding process.

[0075] It should be noted that the gate matching degree between the contact surfaces after two injection moldings in this application represents a quantitative indicator used to evaluate the matching degree between the contact surfaces after two injection moldings in injection molding. It reflects the adaptability of the gates of the two injection moldings during the injection molding process and has an important impact on the injection molding quality and production efficiency.

[0076] In some embodiments, determining the warpage deformation of the molded part after the second color injection molding based on the gate matching degree and the holding pressure change can be achieved by the following steps: Obtaining the gate matching degree; Obtaining the holding pressure change; Determine the material warpage factor corresponding to the second color during injection molding; The warpage deformation amount of the injection molded part after the second color injection molding is determined according to the gate matching degree, the change in the holding pressure in the holding stage during the injection molding process, and the material warpage factor.

[0077] In specific implementation, the material warpage factor corresponding to the second color during injection molding is determined. That is, the material warpage factor can be obtained based on the gate detection test results or simulation analysis during injection molding. Its value is a unitless data between 0 and 1. In other embodiments, it can also be determined according to other methods, which are not limited here.

[0078] It should be noted that the material warpage factor in this application refers to a parameter used to describe the degree of warpage of the injection molding material after molding during the injection molding process.

[0079] Furthermore, in a specific implementation, the warpage of the molded part after the second-color injection molding is determined based on the gate matching, the change in holding pressure during the holding phase of the injection molding process, and the material warpage factor. In some embodiments, finite element analysis (FEA) can be used to calculate the warpage of the molded part after the second-color injection molding. Finite element analysis (FEA) is a commonly used numerical calculation method in injection molding. It discretizes complex geometric models into a finite number of elements and then solves the physical equations for each element to obtain the stress, strain, and deformation of the entire model. In a specific implementation, the FEA can be performed using Moldflow software, with the gate matching and the change in holding pressure during the holding phase of the injection molding process serving as process parameters in the Moldflow software, and the material warpage factor serving as a material property setting in the Moldflow software. The warpage analysis module is selected for simulation analysis, and the software calculates the warpage based on the input material properties and process parameters.

[0080] It should be noted that the warping deformation of the injection molded part after the second color injection molding in this application indicates the degree of bending or deformation of the injection molded part under specific conditions after the injection molding is completed, and is used to evaluate the flexibility and softness of the injection molded part. The greater the flexibility, the higher the bending or deformation ability of the product, and the greater the softness. Especially during the long-term pressure holding process, the deformation of the injection molded part caused by factors such as material shrinkage and stress release, the greater the warping deformation, the more unstable the shape of the injection molded part, and thus causing problems with the appearance quality of the injection molded part, such as curves, bends or deformations. The smaller the warping deformation, the smaller the degree of deformation of the injection molded part when subjected to external force or under the influence of its own gravity, and the higher the stability of the injection molded part.

[0081] In step 105 , a bonding correlation degree of the two-color injection molded parts at the bonding point is determined based on the saturated shrinkage value and the warpage deformation amount, and an injection posture of the two-color injection mold is adjusted based on the bonding correlation degree.

[0082] It should be noted that when performing two-color injection molding in this application, it is necessary to consider whether the two-shot materials have good bonding properties, and the melt temperature of the second shot cannot be higher than the melt temperature of the first shot. If the melt temperatures are close during the two injections, the solidified material of the first color will be re-melted after the second color is injected into the mold, and may be washed away by the molten material of the second color, affecting the stability of the two-color bonding after two-color injection molding. In order to ensure the bonding quality of the two materials on the contact surface in two-color injection molding, it is necessary to quantify the bonding quality of the two materials on the contact surface.

[0083] In addition, the bonding correlation degree of two-color injection molded parts at the joint indicates the degree of quality correlation at the contact joint of two injection molded parts made of two different materials during the two-color injection molding process, and also reflects the stability of the two-color bonding after two-color injection molding.

[0084] In some embodiments, determining the bonding correlation degree of the two-color injection molded part at the bonding point by using the saturated shrinkage value and the warpage deformation amount can be achieved by using the following steps: obtaining the saturation shrinkage value; Obtaining the warping deformation amount; Presetting an initial conversion matrix to convert the saturated shrinkage value and the warping deformation into a combined associated reference coordinate system; The bonding correlation degree of the two-color injection molded part at the bonding point is determined according to the bonding correlation reference coordinate system.

[0085] In specific implementation, the initial conversion matrix is ​​preset, that is, the initial conversion matrix can be determined by a combination transformation method. In a specific embodiment, the corresponding conversion matrix preset method can be selected based on actual conditions, and is not limited here.

[0086] It should be noted that in the present application, the coordinate system used to describe the combination correlation degree of the two injection materials in the two-color injection molding process is expressed in the associated reference coordinate system.

[0087] In a specific implementation, the combination correlation degree of the two-color injection molding is determined according to the associated reference coordinate system, that is, the center of the combination correlation degree is determined by a data center algorithm, for example, a center point clustering, in the associated reference coordinate system, and the minimum values of the saturation shrinkage value of the first color and the warping deformation amount of the second color from the center of the combination correlation degree are determined using a distance algorithm, for example, the Euclidean distance, and the ratio of the two minimum values is taken as the combination correlation degree of the two-color injection molded part at the combination.

[0088] In some embodiments, adjusting the injection position and posture of the two-color injection mold based on the combination correlation degree can be implemented by the following steps: presetting an injection position and posture threshold of the two-color injection mold; obtaining the combination correlation degree of the two-color injection molded part at the combination; obtaining the operation data of the mold rotation after the last injection of the first color in the two-color injection molding process; updating the injection position and posture according to the combination correlation degree and the operation data.

[0089] It should be noted that the operation data of the mold rotation after the last injection of the first color in the present application includes parameters such as the closing pressure, temperature, speed, position, and inclination angle of the mold, which will directly affect the molding process of the injection molded part. Different injection position and posture of the mold will lead to different combination interface morphology and quality, and further affect the goodness of the two-color injection molded part at the combination.

[0090] In a specific implementation, the injection position and posture threshold of the two-color injection mold is preset, that is, the historical operation data of the two-color injection molding is integrated into a dimensionless data, and in the present embodiment, 75% of the data is set as the injection position and posture threshold of the two-color injection mold. In other embodiments, the operation threshold can also be set according to the actual situation, which is not limited here.

[0091] In addition, in a specific implementation, the injection position and posture is updated according to the combination correlation degree and the operation data, that is, the operation data of the mold rotation after the last injection of the first color is compared with the injection position and posture threshold. If the operation data of the mold rotation after the last injection of the first color is greater than the injection position and posture threshold, the adjustment gain of the injection position and posture is reduced. If the operation data of the mold rotation after the last injection of the first color is less than the injection position and posture threshold, the adjustment gain of the injection position and posture is increased, that is, the injection position and posture is updated.

[0092] Among them, when the injection molding posture is updated, it includes: using a position update algorithm, for example, iterating the nearest point, integrating the combination correlation and the operating data into a new posture instruction, and then adjusting the operating posture according to the new posture instruction and the feedback adjustment gain through feedback adjustment.

[0093] In addition, in another aspect of the present application, in some embodiments, the present application provides a CNC machining adjustment system for a two-color mold, referring to Figure 4 This figure is a schematic diagram of exemplary hardware and / or software of a two-color mold CNC machining adjustment system according to some embodiments of the present application. The two-color mold CNC machining adjustment system 400 includes: an acquisition module 401, an extraction module 402, a processing module 403, and an adjustment module 404, which are described as follows: Acquisition module 401, in this application, acquisition module 401 is mainly used to acquire initial injection data in the two-color injection molding process after responding to the data acquisition instruction; Extraction module 402, in this application, the extraction module 402 is mainly used to extract the first shot information of the two-color injection molding and the second shot information of the two-color injection molding according to the initial injection molding data; Processing module 403, in this application, is mainly used to obtain mold material indicators during injection molding, determine the change in holding pressure during the holding stage of the injection molding process based on the mold material indicators during injection molding, and determine the saturation shrinkage value of the injection-molded part after the first color injection molding based on the change in holding pressure and the first shot information of the two-color injection molding; In addition, the processing module 403 is further configured to determine a cooling characteristic sequence of the injection molding material based on the second shot information of the two-color injection molding, determine a gate matching degree between contact surfaces after the two injection moldings based on the cooling characteristic sequence, and further determine a warpage deformation amount of the injection molded part after the second-color injection molding based on the gate matching degree and the change in the holding pressure; Adjustment module 404, in this application, adjustment module 404 is mainly used to determine the bonding correlation of the two-color injection molded parts at the bonding point through the saturation shrinkage value and the warpage deformation, and adjust the injection posture of the two-color injection mold based on the bonding correlation.

[0094] In addition, the present application also provides a computer device, which includes a memory and a processor, wherein the memory stores a code, and the processor is configured to obtain the code and execute the above-mentioned CNC machining adjustment method for the two-color mold.

[0095] In some embodiments, reference Figure 5 , which is a schematic diagram of the structure of a computer device for implementing a numerical control machining adjustment method for a two-color mold according to some embodiments of the present application. The numerical control machining adjustment method for a two-color mold in the above embodiment can be achieved by Figure 5The computer device 500 shown in FIG. 5 is implemented as shown in FIG. 5 . The computer device 500 includes at least one processor 501 , a communication bus 502 , a memory 503 , and at least one communication interface 504 .

[0096] The processor 501 can be a general-purpose central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more processors for controlling the execution of the numerical control machining adjustment method of the two-color mold in this application.

[0097] The communication bus 502 may include a pathway for transmitting information between the aforementioned components.

[0098] The memory 503 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, a random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), a magnetic disk or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto. The memory 503 may be independent and connected to the processor 501 via the communication bus 502. The memory 503 may also be integrated with the processor 501.

[0099] Memory 503 is used to store program code for executing the solution of the present application, and is controlled by processor 501 for execution. Processor 501 is used to execute the program code stored in memory 503. The program code may include one or more software modules. The CNC machining adjustment method for a two-color mold in the above embodiment can be implemented by processor 501 and one or more software modules in the program code stored in memory 503.

[0100] The communication interface 504 uses any transceiver or other device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area network (WLAN), etc.

[0101] In a specific implementation, as an example, a computer device may include multiple processors, each of which may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0102] The aforementioned computer device can be a general-purpose computer device or a dedicated computer device. In a specific implementation, the computer device can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, or an embedded device. The embodiments of this application do not limit the type of computer device.

[0103] In addition, the present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the above-mentioned CNC machining adjustment method for the two-color mold.

[0104] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0105] Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present application fall within the scope of the claims and their equivalents, the present application is intended to include such modifications and variations.

Claims

1. A CNC machining adjustment method for a two-color mold, characterized in that: The steps include: Responding to data acquisition instructions, obtaining initial injection data during the two-color injection molding process; extracting first shot information of the two-color injection molding and second shot information of the two-color injection molding according to the initial injection molding data; Obtaining mold material indicators during injection molding, determining a holding pressure change during a holding pressure phase of the injection molding process based on the mold material indicators during injection molding, and determining a saturated shrinkage value of the molded part after first-color injection molding using the holding pressure change and first-shot information of two-color injection molding; Determining a cooling characteristic sequence of the injection molding material based on the second shot information of the two-color injection molding, determining a gate matching degree between contact surfaces after the two injection moldings based on the cooling characteristic sequence, and further determining a warpage deformation amount of the injection molded part after the second-color injection molding based on the gate matching degree and the change in the holding pressure; The bonding correlation degree of the two-color injection molded parts at the bonding point is determined by the saturation shrinkage value and the warpage deformation amount, and the injection posture of the two-color injection mold is adjusted based on the bonding correlation degree.

2. The method according to claim 1, wherein Extracting the first shot information and the second shot information of the two-color injection molding according to the initial injection molding data specifically includes: Acquiring the initial injection molding data; Determine a first injection molding feature and a second injection molding feature of the initial injection molding data; screening the initial injection molding data according to the first injection molding feature to obtain first shot information of two-color injection molding; The initial injection molding data is screened according to the second injection molding feature to obtain second shot information of the two-color injection molding.

3. The method according to claim 1, wherein The specific amount of change in the holding pressure during the holding stage of the injection molding process is determined based on the mold material index during injection molding: Obtaining mold material indicators, including melt index, mold temperature change, initial volume of the injection molded part, and final volume of the injection molded part; Determining the fluidity of the injection molding material according to the mold temperature change and the melt index; Determining the molding shrinkage of the injection molding material according to the initial volume of the injection molding part and the final volume of the injection molding part; The change in holding pressure during the holding stage of the injection molding process is determined according to the fluidity of the injection molding material and the molding shrinkage of the injection molding material.

4. The method according to claim 1, wherein Determining the saturation shrinkage value of the molded part after the first-color injection molding by using the holding pressure variation and the first-shot information of the two-color injection molding specifically includes: Obtain the change in holding pressure during the holding phase of the injection molding process; Get the first shot information during two-color injection molding; Determine the saturation shrinkage factor during the first color injection; The saturation shrinkage value of the injection molded part after the first color injection molding is determined according to the change of the holding pressure in the holding stage of the injection molding process, the first shot information of the two-color injection molding and the saturation shrinkage factor of the first color injection.

5. The method according to claim 1, wherein The two-color injection molded part refers to a product formed by combining two colors of materials through injection molding.

6. The method according to claim 1, wherein The initial injection data during the two-color injection molding process is obtained through the initial injection data log file.

7. The method according to claim 1, wherein The initial injection data in the two-color injection molding process include: injection temperature, mold temperature, holding time and cooling time.

8. A CNC machining adjustment system for a two-color mold, characterized in that: include: An acquisition module, for acquiring initial injection molding data during the two-color injection molding process after responding to a data acquisition instruction; An extraction module, configured to extract first shot information and second shot information of the two-color injection molding according to the initial injection molding data; a processing module, configured to obtain mold material indicators during injection molding, determine a holding pressure change during a holding stage of the injection molding process based on the mold material indicators, and determine a saturation shrinkage value of the molded part after first-color injection molding based on the holding pressure change and first-shot information of two-color injection molding; The processing module is further configured to determine a cooling characteristic sequence of the injection molding material based on the second shot information of the two-color injection molding, determine a gate matching degree between contact surfaces after the two injection moldings based on the cooling characteristic sequence, and further determine a warpage deformation amount of the injection molded part after the second-color injection molding based on the gate matching degree and the change in the holding pressure; The adjustment module is used to determine the bonding correlation degree of the two-color injection molded parts at the bonding point according to the saturation shrinkage value and the warpage deformation amount, and adjust the injection posture of the two-color injection mold based on the bonding correlation degree.

9. A computer device, characterized in that: The computer device includes a memory and a processor, wherein the memory stores codes, and the processor is configured to obtain the codes and execute the numerical control machining adjustment method for a two-color mold according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the numerical control machining adjustment method for a two-color mold according to any one of claims 1 to 7 is implemented.

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