A copper clad laminate glue mixing control system and method

Abstract

The present application relates to the technical field of industrial control systems, and in particular to a copper clad laminate glue mixing control system and method. The copper clad laminate glue mixing control system includes a glue mixing component, a coating component, a curing component and a control component; the control component is used to determine the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component; the target coating strategy includes a target coating pressure value, a target coating speed value and a target glue coating amount; the coating component is used to adhere the non-standard glue to the substrate according to the target coating strategy to obtain a non-standard coating; the control component is also used to determine the current curing strategy of the curing component according to the first coating quality parameter of the non-standard coating; the curing strategy includes a curing time parameter and a curing temperature parameter; the curing component is used to perform a curing treatment on the non-standard coating according to the curing strategy to obtain a target finished product.

Description

Technical Field

[0001] The present application relates to the technical field of industrial control systems, and in particular to a copper clad laminate glue mixing control system and method. Background Art

[0002] Copper clad laminate is a composite material with a layer of copper foil on an insulating material. It is mainly composed of an insulating bonding surface (such as glass fiber cloth, paper base, etc.) and copper foil, and the copper foil is firmly adhered to the insulating bonding surface through a specific process. Copper clad laminate has good electrical insulation performance, thermal conductivity and mechanical strength, and is widely used in the manufacture of printed circuit boards (PCBs) as a support for electronic components and a carrier for electrical connections.

[0003] The glue mixing of copper clad laminate refers to the mixing of raw materials such as epoxy resin, curing agent, accelerator, solvent, etc. in a certain ratio to form glue suitable for copper clad laminate production. Copper clad laminate is usually made of reinforcing materials (such as glass fiber cloth) impregnated with resin and then covered with copper foil. The main function of the mixed glue is to impregnate reinforcing materials such as glass fiber cloth so that they can fully absorb the resin, thereby enhancing the mechanical properties and stability of the copper clad laminate. The glue can firmly bond the copper foil and reinforcing materials such as glass fiber cloth together to prevent them from falling off or shifting during use.

[0004] At present, the process of glue mixing includes: (1) Raw material preparation: weigh the raw materials such as epoxy resin, curing agent, accelerator, solvent, etc. accurately according to a certain ratio. (2) Mixing and stirring: put the weighed raw materials into the glue mixing barrel, and use the stirring equipment to mix them thoroughly and evenly to form a viscous glue liquid with fluidity.

[0005] However, the unstable quality of glue-making raw materials may lead to poor glue quality, and the traditional glue mixing process cannot effectively manage potential unstable glue quality. Summary of the invention

[0006] Based on this, it is necessary to provide a copper clad laminate glue mixing control system and method that can improve the quality of finished products in response to the above technical problems.

[0007] In a first aspect, the present application provides a copper clad laminate glue mixing control system, the copper clad laminate glue mixing control system includes a glue mixing component, a coating component, a curing component and a control component; The control component is used to determine the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component; the target coating strategy includes a target coating pressure value, a target coating speed value and a target glue coating amount; The coating component is used to apply non-standard glue to the substrate according to the target coating strategy to obtain non-standard coating; The control component is also used to determine a current curing strategy of the curing component according to the first coating quality parameter of the non-standard coating; the curing strategy includes a curing time parameter and a curing temperature parameter; The curing component is used to cure non-standard coatings according to the curing strategy to obtain the target finished product.

[0008] In one embodiment, when the control component determines the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, it is specifically used to: Determine the target glue coating amount used by the coating component for the non-standard glue according to the glue quality difference between the first glue quality parameter of the non-standard glue produced by the glue mixing component and the second glue quality parameter of the standard glue produced by the glue mixing component; the standard glue and the non-standard glue are produced by the same glue making process; According to the target glue coating amount and the difference in glue quality, determine the target glue coating speed value adopted by the coating component for the non-standard glue; According to the target glue coating amount, target glue coating speed value and glue quality difference, the target glue coating pressure value used by the coating component for non-standard glue is determined.

[0009] In one embodiment, the control component is further configured to: The viscosity difference, solid content difference, drying time difference and bonding strength difference between the first glue quality parameter of the non-standard glue made by the glue mixing component and the second glue quality parameter of the standard glue made by the glue mixing component are used as the glue quality difference between the first glue quality parameter of the non-standard glue made by the glue mixing component and the second glue quality parameter of the standard glue made by the glue mixing component.

[0010] In one embodiment, when the control component determines the target glue coating speed value used by the coating component for the non-standard glue according to the target glue coating amount and the glue quality difference, it is specifically used to: The target glue coating speed value adopted by the coating component for the non-standard glue is determined according to the target glue coating amount, the glue drying time difference in the glue quality difference and the glue viscosity difference.

[0011] In one embodiment, when the control component determines the target glue coating pressure value used by the coating component for non-standard glue according to the target glue coating amount, the target glue coating speed value and the glue quality difference, it is specifically used to: The target glue coating pressure value used by the coating component for non-standard glue is determined based on the target glue coating amount, the target glue coating speed value, the glue bonding strength difference and the glue viscosity difference in the glue quality difference.

[0012] In one embodiment, after determining the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the control component is further used to: Construct a digital twin model corresponding to the copper clad laminate glue mixing control system; Conduct simulation tests in the digital twin model based on the target coating strategy and obtain simulation results; If the simulation result characterization is verified, the coating component is controlled to adhere the non-standard glue to the substrate according to the verified target coating strategy to obtain a non-standard coating.

[0013] In one embodiment, after determining the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the control component is further used to: Obtaining coating components to adhere non-standard glue to the substrate according to the target coating strategy to obtain coating quality parameters of the non-standard coating process; Based on the process coating quality parameter, the updated target coating strategy is adjusted to obtain an updated target coating strategy; The coating component is controlled to adhere the non-standard glue to the substrate according to the updated target coating strategy to obtain the non-standard coating.

[0014] In one embodiment, after determining the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the control component is further used to: Extracting image features of the glue during the coating process, and predicting changes in the quality parameters of the first glue based on the image features; Based on the changes, the updated target coating strategy is adjusted to obtain an adjusted target coating strategy, and the coating component is controlled to adhere the non-standard glue to the substrate according to the adjusted target coating strategy to obtain a non-standard coating.

[0015] In one embodiment, when the control component determines the current curing strategy of the curing component according to the first coating quality parameter of the non-standard coating, it is specifically used to: According to a coating quality difference between a first coating quality parameter of the non-standard coating and a second coating quality parameter of the standard coating, a standard curing strategy corresponding to the standard coating is adjusted to obtain a current curing strategy of the curing component; Among them, the non-standard coating and the standard coating are prepared by the same coating process.

[0016] In a second aspect, the present application also provides a copper clad laminate glue mixing control method, which is applied to the above copper clad laminate glue mixing control system, and the method includes: Through the control component in the copper clad laminate glue mixing control system, according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the target coating strategy adopted by the coating component for the non-standard glue is determined; the target coating strategy includes a target coating pressure value, a target coating speed value and a target glue coating amount; Through the coating component in the copper clad laminate glue mixing control system, non-standard glue is applied to the substrate according to the target coating strategy to obtain non-standard coating; Determine the current curing strategy of the curing component according to the first coating quality parameter of the non-standard coating through the control component in the copper clad laminate glue mixing control system; the curing strategy includes a curing time parameter and a curing temperature parameter; Through the curing component in the copper clad laminate glue mixing control system, the non-standard coating is cured according to the curing strategy to obtain the target finished product.

[0017] The above-mentioned copper clad laminate glue mixing control system and method, the present application determines the target coating strategy according to the first glue quality parameter of the non-standard glue prepared by the glue adjustment component through the control component, and can perform customized coating operations for glues of different qualities. Since the unstable quality of the glue-making raw materials may lead to poor glue quality, this customized strategy helps to compensate for the impact of glue quality differences on the final product, ensure that the coating process is more accurate and stable, and thus improve the quality of the copper clad laminate. For glues of different qualities, the target coating pressure value, target coating speed value and target glue coating amount can be accurately adjusted to avoid problems such as uneven coating and loose bonding caused by unstable glue quality, so that the final product has better consistency in terms of bonding strength, thickness uniformity, surface quality, etc.

[0018] Adjusting the coating strategy according to the characteristics of non-standard glue avoids production problems caused by unstable glue quality in traditional processes, reduces defective and scrap rates, and thus optimizes the entire production process and improves production efficiency. The system incorporates multiple links such as glue mixing, coating and curing into an overall control system, realizing full control from glue mixing to final products. The control component dynamically adjusts the coating and curing strategies according to the characteristics of non-standard glue, enhancing the controllability of the production process. For different batches of raw materials or glues of different qualities, the system can adaptively adjust the production strategy, improve the adaptability of the entire copper clad laminate production system to fluctuations in raw material quality, make the production process more flexible, and reduce the risks caused by unstable raw material quality to production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of a copper clad laminate glue mixing control system in one embodiment; Figure 2 The figure is a flow chart of a method for controlling the mixing of glue for copper clad laminates in one embodiment. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] In an exemplary embodiment, Figure 1 As shown, this embodiment provides a copper clad laminate glue mixing control system, which includes a glue mixing component 21, a coating component 22, a curing component 23 and a control component 24; wherein: The functions of the glue mixing component 21 are as follows: 1) Rubber processing and dissolution: First, use a cutting machine to cut the nitrile rubber into small pieces with a particle size of about 5mm, then grind it into powder with a sand mill, and then stir and dissolve it in a closed mixing barrel at room temperature according to the ratio of butanone to rubber. This process does not cause chemical reaction and prepares for subsequent mixing. 2) Mixing and blending: After the rubber is dissolved to meet the viscosity requirements, add powdered fillers, solid epoxy resin and other raw materials according to the formula ratio, and fully stir and mix them into the glue required for coating. The whole process is carried out in a closed mixer to ensure the accurate ratio of raw materials, uniform mixing and environmental safety. The prepared glue is sent to the coating workshop through a closed tank.

[0023] The functions of the coating component 22 are as follows: 1) Gluing operation: install the polyimide film at the roll feeding end and feed it into the coating head, squeeze the glue liquid prepared by the glue adjustment component onto the coating head with the help of the glue supply system, so that the polyimide film is evenly coated with glue liquid, and the drying channel in the coating machine is electrically heated to 80-140°C to preliminarily bake the glue-coated film, promote the volatilization of the solvent, and ensure the initial solidification and stability of the glue layer. 2) Pressing to form a semi-finished product: the preliminarily baked glue-coated polyimide film is pressed with the copper foil to form a semi-finished product with a certain structural strength and electrical performance. This link is a key step to integrate glue, polyimide film and copper foil into one, laying the foundation for subsequent curing treatment.

[0024] The functions of the curing component 23 are as follows: 1) Deep curing: Put the semi-finished product after coating and bonding into an oven at 40-120℃ and bake it with electric heating for about 17 hours to further cross-link the glue, strengthen the internal structure of the product, improve the mechanical properties, electrical insulation properties and other key indicators of the copper clad laminate, and ensure that the product quality meets the expected standards. 2) Cooling and shaping: Cooling by the oven's own cooling system allows the cured product to be stably formed, prevents problems such as internal stress or deformation caused by sudden temperature changes, ensures product dimensional accuracy and performance stability, and finally obtains a finished product that meets the requirements.

[0025] In the current production process, the weighing of raw materials completely relies on manual operation to obtain materials such as rubber, fillers, and epoxy resins. Manual operation has great uncertainty. When operators weigh, the weight weighed each time may deviate from the set standard value due to factors such as lack of concentration, differences in operating proficiency, and fatigue. This deviation will directly affect the proportional relationship of each component in the subsequent product. Moreover, the quality of the raw materials themselves is not always stable. Rubber may fluctuate in purity, elasticity and other properties due to different production batches and storage conditions; the particle size distribution and uniformity of the chemical composition of the filler may also change; key indicators such as the viscosity and epoxy value of epoxy resins will also be affected by the production process and storage environment. When these raw materials with unstable quality are used for production, even if there is no error in the weighing process, it is difficult to ensure consistency and stability in the final quality of the product.

[0026] Previous technologies usually controlled each link independently or adopted a fixed combination of process parameters. In the case where there are manual errors in the weighing of raw materials and the quality of raw materials is unstable, there are many shortcomings in adopting independent control of each link or fixed combination of process parameters. First of all, independent control of each link cannot effectively deal with product quality fluctuations caused by raw material problems. Since it is impossible to dynamically adjust the parameters of subsequent links according to the actual situation of raw materials, when there is a deviation in raw material quality or a weighing error, the subsequent production links still operate in a fixed mode, and it is impossible to compensate and correct the previous problems, making it difficult to guarantee the quality of the final product. For example, if the rubber is weighed excessively and the subsequent links cannot be adjusted adaptively, the viscosity of the glue may be too high, affecting the coating effect and product performance.

[0027] Secondly, fixed process parameter combinations lack flexibility. When faced with the diversity and quality changes of raw materials, targeted optimization cannot be made. Different batches of raw materials may require different process parameters to achieve the best production results, but fixed parameter combinations cannot meet this demand. For example, when the viscosity of epoxy resin varies due to different production batches, fixed stirring time and speed may not allow it to be fully mixed, which in turn affects the quality of the glue and the overall performance of the product.

[0028] Furthermore, independent control and fixed parameter combinations are not conducive to the overall optimization and quality traceability of the production process. It is impossible to establish a close connection and feedback mechanism between each link, and it is difficult to determine the root cause of quality problems, which increases the difficulty of improving production processes and solving quality problems, and reduces production efficiency and product quality stability.

[0029] In order to solve the above technical problems, the control component in this embodiment is used to achieve the following functions, specifically: the control component 24 is used to determine the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue produced by the glue mixing component.

[0030] It is understandable that non-standard glue usually refers to glue that differs from the pre-set standard glue in various performance indicators of the glue. These performance indicators may include viscosity, density, solid content, curing characteristics (such as curing temperature range, curing time), chemical composition ratio and other aspects. For example, when the viscosity of the glue deviates from the viscosity range of the standard glue, or its solid content is different from the standard value, or the temperature and time required for its curing reaction do not meet the standard requirements, such glue is considered non-standard glue. In the actual production process, due to factors such as batch differences in raw materials, slight fluctuations in production equipment, and changes in the production environment, the glue produced by the glue adjustment component may become non-standard glue.

[0031] Among them, the first glue quality parameters may include the following: (1) Viscosity: The viscosity of the glue has a significant impact on its fluidity and coating uniformity during the coating process. Glues with higher viscosity may require greater coating pressure and slower coating speeds to ensure uniform coating, and the coating amount also needs to be adjusted accordingly to avoid problems such as uneven thickness or excessively thick glue layers.

[0032] (2) Density: reflects the mass of glue per unit volume. Glues of different densities have different deposition characteristics during coating. Glues with higher density may have different actual coverage areas under the same coating amount setting. Coating parameters need to be adjusted accordingly to ensure that the glue layer thickness meets the requirements.

[0033] (3) Solid content: determines the final performance and thickness of the glue after curing. Glues with high solid content may require more precise coating amount control, and the coating pressure and speed should also be adjusted to ensure that the glue is fully spread on the substrate and cured to achieve the expected bonding strength and electrical performance indicators.

[0034] (4) Parameters related to curing characteristics: such as the curing starting temperature and curing time curve of the glue. These parameters will affect the working parameter setting of the curing component, and then adjust the parameters of the coating process in reverse through the control component. If the glue cures quickly, it may be necessary to increase the speed and adjust the coating amount appropriately during coating to avoid premature curing of the glue during the coating process, which may affect product quality.

[0035] Optionally, the first glue quality parameter can be obtained in the following ways: (1) Online sensor monitoring: Install sensors at key links in the glue mixing process, such as viscosity sensors that can measure the viscosity of the glue in real time, density sensors that are used to detect the density of the glue, and temperature sensors that are used in conjunction with thermal analysis technology to infer the curing characteristics of the glue. These sensors can continuously collect data and transmit it to the control system to achieve dynamic monitoring and acquisition of glue quality parameters. (2) Laboratory sampling and testing: Regularly extract glue samples from the glue mixing container and send them to the laboratory. In the laboratory, professional analytical instruments and methods are used, such as gas chromatography-mass spectrometry (GC-MS) to analyze the chemical composition ratio of the glue, rotational viscometer to accurately measure the viscosity, and thermogravimetric analyzer (TGA) to determine the curing characteristics, so as to obtain accurate quality parameter data.

[0036] Among them, the target coating strategy includes a target coating pressure value, a target coating speed value and a target glue coating amount.

[0037] It is understood that the target coating pressure value is determined according to the viscosity, fluidity and other characteristics of the non-standard glue. If the glue has high viscosity and poor fluidity, a higher coating pressure may be required to ensure that the glue can be evenly coated on the substrate; conversely, if the glue is thinner and has strong fluidity, the coating pressure may need to be appropriately reduced to prevent excessive penetration of the glue or uneven coating.

[0038] Furthermore, the target coating speed value is related to factors such as the curing characteristics, volatility, and required coating thickness of the glue. For non-standard glues with faster curing speed or strong volatility, the coating speed may need to be increased to complete the coating operation before the glue properties change significantly; while for glues that require a thicker glue layer or have a slower curing speed, the coating speed may need to be appropriately reduced to ensure that the glue has enough time to be evenly distributed on the substrate and initially cured.

[0039] Furthermore, the target glue coating amount depends on the solid content and density of the glue and the requirements of the final product for the thickness and performance of the glue layer. If the glue has a high solid content or high density, the coating amount may need to be reduced while ensuring the bonding effect; if the product requires stronger bonding or better insulation performance, the coating amount may need to be increased according to the actual situation of the non-standard glue to ensure that the glue layer can meet the functional requirements of the product.

[0040] Optionally, based on the first glue quality parameter of the non-standard glue produced by the glue mixing component, the target coating strategy adopted by the coating component for the non-standard glue can be determined in the following manner: based on the quality difference between the first glue quality parameter of the non-standard glue produced by the glue mixing component and the second glue quality parameter of the standard glue, the standard coating strategy adopted by the coating component for the standard glue is adjusted to obtain the target coating strategy adopted by the coating component for the non-standard glue.

[0041] Accordingly, in this embodiment, the coating component 21 is used to apply non-standard glue to the substrate according to the target coating strategy to obtain a non-standard coating.

[0042] Optionally, ensure that the coating equipment is properly installed and calibrated, including the position, pressure and speed control devices of the coating head. Prepare the substrate to ensure that its surface is clean and flat, without impurities or oil that will affect the bonding effect of the glue.

[0043] The target coating pressure value, target coating speed value and target glue coating amount calculated previously are input into the control system of the coating equipment. The pressure at the coating head is adjusted to using a pressure sensor and a feedback control system. The pressure sensor monitors the pressure in real time, and the control system adjusts the output of the pressure source (such as air pressure or hydraulic system) according to the difference between the measured value and the target value to ensure that the pressure is stable near the target pressure during the coating process. Use a speed controller to control the movement speed of the coating head according to. For different coating equipment, this may be achieved by adjusting the speed of the motor or the speed of the transmission device. For example, in a coating system driven by a motor, the movement speed of the coating head can be accurately controlled by adjusting the speed of the motor and the transmission ratio. Combined with the target coating speed and coating amount, the flow rate of the glue is accurately controlled. A flow sensor and a valve system can be used to adjust the output of the glue according to the requirements of the coating speed and coating amount. In a simple coating system, the flow rate may be controlled by adjusting the pressure of the glue storage container or using a precise metering pump.

[0044] Accordingly, in this embodiment, the control component 24 is also used to determine the current curing strategy of the curing component according to the first coating quality parameter of the non-standard coating.

[0045] The first coating quality parameter of the non-standard coating may include: coating thickness, coating uniformity, surface roughness, bonding strength, coating coverage and porosity.

[0046] Among them, the curing strategy includes curing time parameters and curing temperature parameters.

[0047] It can be understood that the curing time parameter refers to the length of time required to keep the material under certain curing conditions (such as specific temperature, pressure, light, etc.) in order to achieve the desired physical and chemical properties during the curing process of the material. The curing temperature parameter refers to the temperature conditions required to achieve the material's transformation from a liquid or flowable state to a solid or stable state during the curing process.

[0048] Optionally, according to the coating quality difference between the first coating quality parameter of the non-standard coating and the second coating quality parameter of the standard coating, the standard curing strategy corresponding to the standard coating is adjusted to obtain the current curing strategy of the curing component.

[0049] Correspondingly, the curing component 23 is used to perform a curing process on the non-standard coating according to the curing strategy to obtain a target finished product.

[0050] Optionally, connect the heating device to a power source and perform power regulation via a control circuit. Ensure that the heating device is able to adjust the output power according to the input control signal. Install a temperature sensor near the curing area so that it can accurately measure the temperature of non-standard coatings. Connect the controller, connect the output of the temperature sensor to the input of the controller, and connect the output of the controller to the power control end of the heating device. Configure the parameters of the PID controller, which need to be adjusted according to the characteristics of the heating device and the requirements of the curing process, and can be optimized through experiments. Enter the curing temperature parameters and curing time parameters of the curing strategy.

[0051] In an exemplary embodiment, when the control component determines the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, it is specifically used to: (1) Determining a target glue coating amount for the non-standard glue used by the coating component based on a glue quality difference between a first glue quality parameter of the non-standard glue produced by the glue mixing component and a second glue quality parameter of the standard glue produced by the glue mixing component.

[0052] Optionally, the viscosity difference, solid content difference, drying time difference and bonding strength difference between the first glue quality parameter of the non-standard glue produced by the glue mixing component and the second glue quality parameter of the standard glue produced by the glue mixing component are used as the glue quality difference between the first glue quality parameter of the non-standard glue produced by the glue mixing component and the second glue quality parameter of the standard glue produced by the glue mixing component.

[0053] Accordingly, according to the glue quality difference between the first glue quality parameter of the non-standard glue prepared by the glue adjusting component and the second glue quality parameter of the standard glue prepared by the glue adjusting component, the target glue coating amount used by the coating component for the non-standard glue is determined, specifically in the following manner: (11) Obtain the first viscosity value of the non-standard glue and the second viscosity value of the standard glue. Calculate the viscosity ratio = first viscosity value / second viscosity value.

[0054] If the viscosity ratio is greater than one, it means that the non-standard glue is thicker than the standard glue. In this case, more glue is usually needed to ensure uniformity and coverage of the coating. At this time, the target glue coating amount = the coating amount of the standard glue multiplied by the viscosity ratio. If the viscosity ratio is less than one, the non-standard glue is thinner than the standard glue and may require less glue. At this time, the target glue coating amount = the coating amount of the standard glue divided by the viscosity ratio.

[0055] Calculate the first solid content of the non-standard glue and the second solid content of the standard glue. Calculate the difference between the solid content of the non-standard glue and the solid content of the standard glue. When the difference is greater than 0, that is, the non-standard glue has a higher solid content, you need to use an empirical factor less than 1 to multiply the difference divided by the solid content of the standard glue, and then subtract this result from 1. Finally, multiply the coating amount of the standard glue by this result to get the target glue coating amount. This is done because a high solid content may result in a thicker or stronger bond line after curing, so the coating amount may need to be reduced appropriately. When the difference is less than 0, that is, the non-standard glue has a lower solid content, use the above calculation method, but take the absolute value of the difference, and finally divide the coating amount of the standard glue by the result. Because the low solid content may require more glue to ensure the bonding effect.

[0056] Determine the first drying time of the non-standard glue and the second drying time of the standard glue. Calculate the drying time of the non-standard glue divided by the drying time of the standard glue to get the drying time ratio. If the drying time ratio is greater than 1, it means that the non-standard glue dries more slowly. At this time, the target glue coating amount is equal to the coating amount of the standard glue divided by the drying time ratio to prevent the glue from flowing or deforming during the drying process. If the drying time ratio is less than 1, it means that the non-standard glue dries faster, and the target glue coating amount is equal to the coating amount of the standard glue multiplied by the drying time ratio to ensure that there is enough glue to complete the coating in a short time.

[0057] (14) Calculate the first bonding strength of the non-standard glue and the second bonding strength of the standard glue. Calculate the bonding strength of the non-standard glue and divide it by the bonding strength of the standard glue to get the bonding strength ratio. When the bonding strength ratio is greater than 1, it means that the bonding strength of the non-standard glue is higher. If there is an upper limit requirement for the bonding strength of the product, the target glue coating amount is equal to the coating amount of the standard glue divided by the bonding strength ratio, and the coating amount can be appropriately reduced. When the bonding strength ratio is less than 1, it means that the bonding strength of the non-standard glue is low and more glue is needed to achieve the required bonding strength, so the target glue coating amount is equal to the coating amount of the standard glue multiplied by the bonding strength ratio.

[0058] (2) Determine the target glue coating speed value for the coating component for non-standard glue based on the target glue coating amount and glue quality difference.

[0059] Optionally, a target glue coating speed value used by the coating component for non-standard glue is determined based on the target glue coating amount, the glue drying time difference in the glue quality difference, and the glue viscosity difference.

[0060] Specifically, the control component 24 is used to determine the target glue coating speed value used by the coating component for the non-standard glue according to the target glue coating amount, the glue drying time difference and the glue viscosity difference in the glue quality difference: (21) First, obtain the first drying time of the non-standard glue and the second drying time of the standard glue. Calculate the first drying time of the non-standard glue and divide it by the second drying time of the standard glue to obtain the drying time ratio. If the drying time ratio is greater than 1, it means that the non-standard glue has a longer drying time. In this case, in order to avoid the glue drying too quickly during the coating process and affecting the coating quality, the target glue coating speed value should be reduced. The coating speed value of the standard glue can be divided by the drying time ratio to obtain a preliminary target glue coating speed value. This is because a longer drying time allows us to coat at a slower speed to avoid the glue drying before the coating is completed, which affects the uniformity and quality of the coating. On the contrary, if the drying time ratio is less than 1, it means that the non-standard glue dries faster. At this time, in order to prevent the glue from drying prematurely at the coating head, resulting in discontinuous coating or clogging the coating head, the coating speed needs to be increased. Therefore, the coating speed value of the standard glue is multiplied by the drying time ratio to obtain a preliminary target glue coating speed value.

[0061] (22) Calculate the first viscosity value of the non-standard glue and the second viscosity value of the standard glue. Calculate the first viscosity value of the non-standard glue and divide it by the second viscosity value of the standard glue to obtain the viscosity ratio. When the viscosity ratio is greater than 1, it indicates that the non-standard glue is more viscous. Since the more viscous glue flows more slowly, in order to ensure that a certain amount of glue can be smoothly coated, the coating speed needs to be reduced. Therefore, the preliminary target glue coating speed value is divided by the viscosity ratio to adjust the coating speed. This is because higher viscosity will hinder the flow of glue, and a slower coating speed helps to ensure the uniformity and integrity of the coating. When the viscosity ratio is less than 1, the non-standard glue is thinner and has better fluidity. In order to improve the coating efficiency, the preliminary target glue coating speed value can be multiplied by the viscosity ratio, and the coating speed can be appropriately increased to ensure that the coating is completed more efficiently while meeting the coating amount.

[0062] (23) Adjustment based on target glue coating amount: Given the target glue coating amount and the standard coating amount of the standard glue, calculate the target glue coating amount divided by the standard coating amount of the standard glue to obtain the coating amount ratio.

[0063] If the coating ratio is greater than 1, it means that the target glue coating amount is more than the standard coating amount. In this case, in order to ensure that there is enough time to complete the larger coating amount, the coating speed may need to be reduced. Divide the preliminary target glue coating speed value adjusted for drying time and viscosity by the coating ratio to further adjust the coating speed. This takes into account that a larger coating amount may require more time to complete the coating, so the speed should be reduced accordingly. If the coating ratio is less than 1, the target glue coating amount is less. At this time, the preliminary target glue coating speed value adjusted for drying time and viscosity can be multiplied by the coating ratio to appropriately increase the coating speed, because a smaller coating amount can be coated in a shorter time.

[0064] (3) Determine the target glue coating pressure value used by the coating component for non-standard glue based on the target glue coating amount, target glue coating speed value and glue quality difference.

[0065] Optionally, a target glue coating pressure value used by the coating component for non-standard glue is determined based on a target glue coating amount, a target glue coating speed value, glue bonding strength difference and glue viscosity difference in glue quality difference.

[0066] Specifically, when the control component 24 determines the target glue coating pressure value used by the coating component for the non-standard glue according to the target glue coating amount, the target glue coating speed value, the glue bonding strength difference and the glue viscosity difference in the glue quality difference, it is specifically used to: (31) First, obtain the first viscosity value of the non-standard glue and the second viscosity value of the standard glue. Calculate the first viscosity value of the non-standard glue divided by the second viscosity value of the standard glue to obtain the viscosity ratio. If the viscosity ratio is greater than 1, it means that the viscosity of the non-standard glue is higher. Since high-viscosity glue is more difficult to flow under the same conditions, a higher pressure is required to push the glue through the coating head for coating, so the target glue coating pressure value should be higher than the coating pressure value of the standard glue. The coating pressure value of the standard glue can be multiplied by the viscosity ratio to obtain a preliminary target glue coating pressure value based on viscosity. On the contrary, if the viscosity ratio is less than 1, it indicates that the viscosity of the non-standard glue is lower, the glue is easier to flow, and the required pressure is relatively small. At this time, the coating pressure value of the standard glue is divided by the viscosity ratio to obtain a preliminary target glue coating pressure value based on viscosity.

[0067] (32) Calculate the first bonding strength of the non-standard glue and the second bonding strength of the standard glue. Calculate the first bonding strength of the non-standard glue and divide it by the second bonding strength of the standard glue to obtain the bonding strength ratio. When the bonding strength ratio is greater than 1, it means that the bonding strength of the non-standard glue is higher. Generally, higher bonding strength may require better ability of the glue to penetrate and fill the surface of the substrate, and appropriate pressure helps the glue to better penetrate the substrate and improve the bonding effect. Therefore, the initial target glue application pressure value based on viscosity can be multiplied by the bonding strength ratio to obtain the adjusted target glue application pressure value. This is because higher bonding strength may mean that more pressure is required to ensure good contact and bonding between the glue and the substrate. When the bonding strength ratio is less than 1, the bonding strength of the non-standard glue is lower and may not require such a high pressure. To avoid uneven glue distribution or other problems caused by excessive pressurization, the initial target glue application pressure value based on viscosity is divided by the bonding strength ratio to obtain the adjusted target glue application pressure value.

[0068] (33) Given the target glue coating amount and the standard coating amount of the standard glue, calculate the target glue coating amount divided by the standard coating amount of the standard glue to obtain the coating amount ratio. At the same time, calculate the target glue coating speed value divided by the standard coating speed value of the standard glue to obtain the coating speed ratio. If the coating amount ratio is greater than 1 and the coating speed ratio is less than 1, that is, the target glue coating amount is large and the coating speed is slow, this may mean that higher pressure is required to ensure that enough glue can be smoothly coated at a slower speed. Multiply the adjusted target glue coating pressure value by the coating amount ratio to further adjust the pressure. This is because a larger amount of glue and a slower coating speed may require greater pressure to maintain the stability of the coating process. If the coating amount ratio is less than 1 and the coating speed ratio is greater than 1, that is, the target glue coating amount is small but the coating speed is fast, it may be necessary to reduce the pressure. Divide the adjusted target glue coating pressure value by the coating amount ratio to avoid problems such as uneven glue distribution or splashing caused by excessive pressure.

[0069] In an exemplary embodiment, after determining the target coating strategy adopted by the coating component for the non-standard glue based on the first glue quality parameter of the non-standard glue produced by the glue mixing component, the control component 24 is also used to: construct a digital twin model corresponding to the copper clad laminate glue mixing control system, and perform simulation experiments in the digital twin model based on the target coating strategy to obtain simulation results; if the simulation result characterization is verified to be passed, the coating component is controlled to adhere the non-standard glue to the substrate according to the verified target coating strategy to obtain a non-standard coating.

[0070] Optionally, first, collect various information of the copper clad laminate glue mixing control system, including the physical properties and operating parameters of the glue mixing components, coating components, and substrates, and build a digital twin model based on this. For the glue mixing components, the first glue quality parameters of non-standard glues, such as viscosity, solid content, reactivity, drying time, etc., need to be included; for the coating components, parameters such as its geometry, adjustable coating speed range, and coating pressure range should be considered; for the substrate, information such as its surface roughness, size, and thermal properties should be included. By digitally modeling the physical, chemical, and mechanical properties of these actual systems, a virtual digital twin model corresponding to the real system is established.

[0071] The previously determined target coating strategy, including the target glue coating amount, target glue coating speed value, target glue coating pressure value and other parameters, is input into the digital twin model. In the digital twin model, the flow, diffusion, curing and other behaviors of non-standard glue during the coating process are simulated according to relevant theories and algorithms such as fluid mechanics, heat transfer, and chemical kinetics. For example, according to the target glue coating amount and coating speed, the volume flow and distribution of glue during the coating process are simulated; according to the target coating pressure, the flow state of glue through the coating head under different pressures is considered, which may involve the Hagen-Poiseuille law or other related equations in fluid mechanics to simulate the flow characteristics of glue in the coating head and on the surface of the substrate; according to the drying time and chemical properties of the glue, combined with heat transfer and mass transfer theory, the drying and curing process of the glue is simulated.

[0072] At the same time, considering the interaction between non-standard glue and substrate, according to the adhesive properties of glue and the surface characteristics of substrate, the bonding process of glue on the substrate surface is simulated to predict the properties such as bonding strength and bonding uniformity. For the simulation of bonding strength, the bonding strength can be estimated by a certain mechanical model (such as shear force and tensile force model) according to the bonding strength parameters of glue, coating amount and characteristics of substrate; for bonding uniformity, it can be evaluated according to the coating amount distribution and flow state of glue at different positions.

[0073] After running the simulation test, a series of simulation results are obtained, including but not limited to coating uniformity, drying and curing state of glue, bonding strength, surface quality after coating, etc. A series of performance indicators and thresholds are set to verify whether the simulation results are passed. For example, a standard deviation threshold for coating uniformity is set. If the standard deviation of coating uniformity obtained by simulation is less than the threshold, the coating uniformity is considered to meet the requirements; for bonding strength, a minimum bonding strength threshold is set. If the bonding strength obtained by simulation is greater than the threshold, the bonding strength is considered to meet the requirements; for the drying and curing state of the glue, according to the set curing time and temperature range, it is judged whether the curing is completed under reasonable time and temperature conditions, and there are no uncured or over-cured areas. Comprehensively evaluate each performance indicator. If each indicator meets the corresponding threshold requirements, the simulation result characterization verification is considered to have passed.

[0074] If the simulation results are verified, the previously determined target coating strategy is sent to the control system of the coating component. The control system of the coating component accurately controls the output of the glue according to the target glue coating amount, which may be achieved by adjusting the flow rate of the flow control valve or pump of the glue supply system. According to the target glue coating speed value, the movement speed of the coating head or the movement speed of the substrate is controlled, which can be achieved through the motor speed control system or the speed control mechanism of the transmission device. According to the target glue coating pressure value, the pressure source at the coating head is adjusted, for example, by adjusting the pressure of the air pressure or hydraulic system to ensure that the pressure during the coating process is stable near the target pressure. During the coating process, the actual coating situation is continuously monitored, such as monitoring the actual values ​​of the coating amount, coating speed and pressure through sensors to ensure that they are consistent with the target values, and checking the coating status of the glue on the substrate, such as monitoring the uniformity and integrity of the coating through a visual system or other detection equipment.

[0075] In this embodiment, the target coating strategy is virtually tested and verified in the digital twin model. By simulating various physical and chemical processes of the glue and the system, it is evaluated whether the various performance indicators of the coating meet the standards. If they meet the standards, the target coating strategy is applied to the actual coating component. By precisely controlling the various operating parameters of the coating component, non-standard glue is adhered to the substrate to ultimately produce a non-standard coating.

[0076] In an exemplary embodiment, after determining the target coating strategy adopted by the coating component for the non-standard glue based on the first glue quality parameter of the non-standard glue prepared by the glue adjusting component, the control component 24 is also used to: obtain the coating component to adhere the non-standard glue to the substrate according to the target coating strategy to obtain the process coating quality parameters of the non-standard coating in the non-standard coating process; based on the process coating quality parameters, adjust the updated target coating strategy to obtain the adjusted target coating strategy, and control the coating component to adhere the non-standard glue to the substrate according to the adjusted target coating strategy to obtain the non-standard coating.

[0077] Optionally, in the process of the coating component laminating the non-standard glue on the substrate according to the target coating strategy, various sensors and measuring devices are used to obtain process coating quality parameters of the non-standard coating.

[0078] The thickness of the glue on the substrate can be measured at different locations using equipment such as laser range finders, optical microscopes or stylus profilometers to obtain the distribution of coating thickness. This will help evaluate whether the uniformity and thickness of the glue coating are as expected. The mean, standard deviation or coefficient of variation of the thickness is calculated by statistically analyzing the coating thickness measurements at different locations. A smaller standard deviation or coefficient of variation indicates better coating uniformity and reflects the consistency of the glue distribution on the substrate surface. The coated samples are tested using a tensile tester or a shear tester to obtain the bond strength at different locations. This will reflect the bonding effect between the glue and the substrate, ensuring that the required bonding performance can be met at different locations. The glue can be dried according to the expected drying time and conditions by monitoring the temperature and humidity of the glue with sensors or analyzing the transparency of the glue using optical equipment. Poor drying may affect subsequent curing and product performance. The surface roughness after coating is measured using a profilometer, which may affect the appearance and subsequent processing performance of the product.

[0079] If the average coating thickness measured does not match the target glue coating amount in the target coating strategy, adjustments need to be made. If the average coating thickness is greater than the target coating amount, the target glue coating amount can be appropriately reduced; conversely, if the average coating thickness is less than the target coating amount, the target glue coating amount needs to be increased.

[0080] For coating uniformity, if the standard deviation or coefficient of variation is large, it means that the coating is uneven. You may need to adjust the coating speed, pressure or glue flow. If the coating speed is too fast and causes unevenness, you can reduce the speed appropriately; if the pressure is uneven, you need to adjust the coating pressure control system; if the problem is that the glue flow is unstable, you may need to check and adjust the glue supply system.

[0081] When the bond strength test results are lower than expected, it may be necessary to increase the target glue coating amount, because more glue may provide better bonding. At the same time, you can also consider adjusting the coating pressure. Higher pressure may help the glue penetrate the substrate better and improve the bonding strength; or according to the chemical properties of the glue, appropriately extend the drying time to promote chemical reactions and enhance bonding. If the bond strength is too high, it may lead to increased costs or other problems. You can reduce the target glue coating amount or reduce the coating pressure to optimize the bond strength.

[0082] If the glue dries too slowly, you can increase the coating speed or reduce the target glue coating amount to shorten the time the glue stays on the substrate; you can also consider adjusting environmental conditions, such as increasing ventilation or heating, to promote drying. If the glue dries too quickly, resulting in uneven coating or incomplete coverage of the substrate, you may need to reduce the coating speed, increase the target glue coating amount, or adjust the temperature and humidity of the environment to allow the glue to have a more appropriate drying time.

[0083] High surface roughness may be due to too fast coating speed, inappropriate pressure or glue fluidity problem. You can reduce the coating speed to allow more time for the glue to flow on the substrate surface and make the surface smoother; adjust the coating pressure to change the spreading state of the glue on the substrate; if it is a glue fluidity problem, you may need to adjust the glue temperature or composition, or adjust the coating speed and pressure according to the viscosity of the glue.

[0084] Input updated parameters such as target glue coating amount, target glue coating speed value, and target glue coating pressure value into the control system of the coating component. For the updated target glue coating amount, adjust the flow of the glue supply system, such as adjusting the flow of the pump or the opening of the valve, to ensure the precise output of the required amount of glue. By controlling the speed of the motor or the transmission ratio of the transmission device, the movement speed of the coating head or the substrate reaches the updated target glue coating speed value to achieve more uniform coating. Use a pressure regulating device (such as an air pressure or hydraulic system) to adjust the coating pressure to the updated target glue coating pressure value to ensure that the glue is at a suitable pressure state during the coating process.

[0085] In this embodiment, the above steps need to be repeated continuously, and the target coating strategy is continuously optimized according to the feedback of the process coating quality parameters until a satisfactory non-standard coating quality is achieved. This process is an iterative optimization process, which aims to achieve high-quality non-standard coating through real-time monitoring and adjustment, while taking into account the properties of the glue, the characteristics of the substrate, and the performance of the coating equipment to meet the quality requirements of the final product.

[0086] In an exemplary embodiment, after determining the target coating strategy adopted by the coating component for the non-standard glue based on the first glue quality parameter of the non-standard glue produced by the glue adjusting component, the control component 24 is also used to: extract image features of the glue during the coating process, and predict changes in the first glue quality parameters based on the image features; adjust the updated target coating strategy based on the changes to obtain an adjusted target coating strategy, and control the coating component to adhere the non-standard glue to the substrate according to the adjusted target coating strategy to obtain a non-standard coating.

[0087] Optionally, use image acquisition equipment such as a high-speed camera or an industrial camera to capture images in real time during the glue coating process. Perform preprocessing on the captured images, including grayscale, denoising, contrast enhancement, etc., to improve image quality and facilitate subsequent feature extraction.

[0088] Furthermore, texture features of the glue on the substrate are extracted through texture analysis algorithms (such as gray-level co-occurrence matrix, local binary pattern, etc.), which can reflect the flow state, uniformity and coating quality of the glue. For example, the coarseness of the texture may be related to the flow speed and viscosity of the glue. Finer textures may indicate faster glue flow or lower viscosity, while coarse textures may suggest the opposite. Identify the contour shape of the glue on the substrate and check whether there are irregular shapes or edges, which can reflect the spreading and uniformity of the glue. For example, the appearance of jagged edges may indicate uneven coating or interference from external factors; a circular or elliptical contour may be ideal, but if an irregular shape appears, it may indicate a problem with the coating head or the substrate surface. For some transparent or translucent glues, their color characteristics may change during the coating process, and this change can reflect the thickness or state of the glue. By analyzing the distribution and intensity of the color, the coating uniformity and thickness changes of the glue can be judged. For example, darker areas of color may indicate thicker glue, while lighter areas may indicate thinner or unevenly applied glue.

[0089] According to the texture characteristics, if the texture becomes coarser, it may indicate that the viscosity of the glue is increasing. This may be due to the fact that the glue is affected by environmental factors (such as temperature changes, solvent volatilization, etc.) during the coating process. For example, as the solvent evaporates, the viscosity of the glue will gradually increase, which is reflected in the image as the texture changes from fine to coarse. Analyze the flow profile and spreading speed of the glue. A slow spreading speed may indicate an increase in viscosity; if the flow range of the glue on the image is reduced, it may also be a signal of increased viscosity.

[0090] The drying speed is determined by the change in color characteristics. If the color gradually becomes lighter or the color distribution changes faster, it may mean that the glue is drying faster, which may be caused by factors such as ambient temperature, humidity or airflow. Analyze the edge of the glue. If the edge gradually becomes clear from blurry, it may also mean that the glue is drying, and the drying speed can be estimated based on the rate of edge change.

[0091] Judging from the texture and shape characteristics. If the distribution of glue on the substrate becomes increasingly uneven, or localized aggregation or voids occur, the bonding performance may be affected. This may be due to changes in the properties of the glue, resulting in poor bonding performance with the substrate. Analyze the boundary between the glue and the substrate in the image. If there is a clear separation or gap at the boundary, it may indicate a decrease in bonding performance, which may be due to changes in the composition of the glue or changes in its affinity with the substrate.

[0092] If an increase in viscosity is predicted, the target glue coating speed in the target coating strategy may need to be adjusted. Since more viscous glues have difficulty flowing, the coating speed can be appropriately reduced to ensure sufficient coating volume; at the same time, the coating pressure may need to be increased to ensure that the glue can be coated normally. For the target glue coating volume, if the viscosity increases, the coating volume may need to be appropriately increased, because the thicker glue may not spread evenly and more volume is required to ensure coverage.

[0093] If the drying speed is predicted to increase, you can consider reducing the coating speed to prevent the glue from drying before it is completely coated. You can also consider increasing the ambient humidity or lowering the ambient temperature to slow down the drying speed. If the drying speed slows down, you can appropriately increase the coating speed or adjust the environmental conditions (such as increasing the temperature, strengthening ventilation, etc.) to speed up the drying process and avoid glue flow or accumulation.

[0094] When the bonding performance may deteriorate, the target glue coating amount can be increased to provide more coverage of the glue on the substrate to enhance the bonding; you can also consider adjusting the coating pressure to improve the contact between the glue and the substrate and improve the bonding effect.

[0095] Input the updated target glue coating amount, target glue coating speed, and target glue coating pressure parameters into the control system of the coating component. For the adjusted target glue coating amount, adjust the flow control device (such as a pump or valve) of the glue supply system to ensure the correct amount of glue is output. For the adjusted target glue coating speed, adjust the movement speed control device (such as a motor speed controller) of the coating head or substrate to achieve the updated speed. For the adjusted target glue coating pressure, use a pressure regulation system (such as a pneumatic or hydraulic system) to set the coating pressure to the updated value to ensure that the glue is at the appropriate pressure during the coating process.

[0096] In this embodiment, by continuously monitoring and analyzing the image features, the changes in the glue quality parameters are discovered in time, and the target coating strategy is updated accordingly, thereby achieving dynamic adjustment of the coating process to obtain better non-standard coating effects. It should be noted that the relationship between image features and glue quality parameters may be relatively complex, and it is necessary to establish an accurate feature-parameter mapping relationship through a large amount of experiments and experience accumulation in order to make accurate predictions and adjustments.

[0097] In an exemplary embodiment, when the control component 24 determines the current curing strategy of the curing component based on the first coating quality parameter of the non-standard coating, it is specifically used to: adjust the standard curing strategy corresponding to the standard coating according to the coating quality difference between the first coating quality parameter of the non-standard coating and the second coating quality parameter of the standard coating, so as to obtain the current curing strategy of the curing component.

[0098] Optionally, the coating quality difference between the first coating quality parameter of the non-standard coating and the second coating quality parameter of the standard coating is determined based on the coating thickness difference, coating uniformity difference and bonding strength difference between the first coating quality parameter of the non-standard coating and the second coating quality parameter of the standard coating.

[0099] Accordingly, the control component 24 adjusts the standard curing strategy corresponding to the standard coating according to the coating quality difference between the first coating quality parameter of the non-standard coating and the second coating quality parameter of the standard coating to obtain the current curing strategy of the curing component, specifically for: (41) Adjustment based on coating thickness difference: First calculate the coating thickness of the non-standard coating and the coating thickness of the standard coating. Compare the two to see whether the non-standard coating is thicker or thinner than the standard coating. If the non-standard coating is thicker, then because the thicker coating may require more time for the glue to cure, a certain amount of time must be added to the curing time of the standard curing strategy. This additional time is determined by the thickness of the non-standard coating that is thicker than the standard coating, and it is necessary to determine through experiments how much additional curing time is required for each additional thickness. Regarding the curing temperature, a thicker coating may require a higher temperature to ensure that the glue inside is completely cured, so the temperature must be increased according to the additional thickness. This increased temperature is also determined by experiments, that is, how much additional temperature is required for each additional thickness. If the non-standard coating is thinner than the standard coating, the curing time can be appropriately shortened, because a thin coating does not take as long to cure as a thick coating. The shortened time is determined by the thickness of the thinner part than the standard coating, which is also determined through experiments. Regarding curing temperature, thinner coatings do not require as high a temperature as thicker ones, so the temperature should be lowered. The amount of reduction depends on the thickness of the thinner-than-standard coating and experimental results.

[0100] (42) Adjustment based on coating uniformity differences: Calculate the uniformity index of non-standard coating and the uniformity index of standard coating. Compare the two to see whether the uniformity of non-standard coating is better or worse than that of standard coating. If the uniformity of non-standard coating is poor, since there may be locally thick areas, in order to ensure that these areas can be fully cured, it is necessary to appropriately extend the curing time of the standard curing strategy. The extended time is determined based on the degree of uniformity difference and experiments, that is, the amount of additional time required is determined based on the degree of uniformity deterioration. For the curing temperature, in order to better cure the coating with poor uniformity, especially those locally thick areas, the temperature should be appropriately increased. The increased temperature is determined by the degree of uniformity deterioration and experiments, that is, the amount of additional temperature required is determined based on the degree of uniformity deterioration. If the uniformity of non-standard coating is better, the curing time can be appropriately shortened, because uniform coating is easier to cure. The shortened time is determined based on the degree of uniformity better than standard coating and experiments. For the curing temperature, it can be appropriately lowered, because a coating with good uniformity may be cured at a lower temperature. The lowered temperature is determined based on the degree of uniformity that is better than the standard coating and experiments.

[0101] (43) Adjustment based on the difference in bonding strength: Calculate the bonding strength of the non-standard coating and the bonding strength of the standard coating. Compare the two to see whether the bonding strength of the non-standard coating is higher or lower than that of the standard coating. If the bonding strength of the non-standard coating is high, because this may mean that the glue is more fully cured, the curing time of the standard curing strategy can be appropriately shortened. The shortened time is determined by the degree to which the bonding strength is higher than that of the standard coating and the experiment, that is, the shortening time is determined by the degree to which the bonding strength exceeds that of the standard coating. For the curing temperature, because the high bonding strength may not require as high a temperature as before, it can be appropriately reduced. The reduced temperature is determined by the part of the bonding strength that exceeds that of the standard coating and the experimental results. If the bonding strength of the non-standard coating is low, in order to achieve the desired bonding effect, the curing time needs to be extended. The extended time is determined by the degree to which the bonding strength is lower than that of the standard coating and the experiment, that is, the additional time required is determined by the degree to which the bonding strength is insufficient. For the curing temperature, in order to enhance the bonding strength, the temperature needs to be increased. The increased temperature is determined by the degree to which the bonding strength is lower than that of the standard coating and the experimental results.

[0102] (44) Adjustment based on surface roughness difference: Calculate the surface roughness of the non-standard coating and the surface roughness of the standard coating. Compare the two to see whether the surface roughness of the non-standard coating is larger or smaller than that of the standard coating. If the surface roughness of the non-standard coating is large, the rough surface may affect the curing effect, so the curing time needs to be extended. The extended time is determined by the degree to which the surface roughness is greater than that of the standard coating and the experiment. In other words, the additional time is determined by the degree to which the surface is rougher. For the curing temperature, in order to allow the glue to better fill the microstructure of the rough surface, the temperature needs to be increased. The increased temperature is determined by the degree to which the surface is rougher and the experimental results. If the surface roughness of the non-standard coating is small, because the smooth surface is more conducive to curing, the curing time can be appropriately shortened. The shortened time is determined by the degree to which it is smoother than the standard coating and the experiment. For the curing temperature, because the smooth surface may not require a high temperature to complete the curing, it can be appropriately reduced. The reduced temperature is determined by the degree to which it is smoother than the standard coating and the experiment.

[0103] In an exemplary embodiment, Figure 2 As shown, this embodiment provides a copper clad laminate glue mixing control method, characterized in that it is applied to the above copper clad laminate glue mixing control system, and the method includes: S201, determining a target coating strategy adopted by a coating component for non-standard glue according to a first glue quality parameter of the non-standard glue prepared by a glue adjusting component through a control component in a copper clad laminate glue mixing control system.

[0104] Among them, the target coating strategy includes a target coating pressure value, a target coating speed value and a target glue coating amount.

[0105] S202, through the coating component in the copper clad laminate glue mixing control system, according to the target coating strategy, non-standard glue is applied to the substrate to obtain a non-standard coating.

[0106] S203, determining a current curing strategy of the curing component according to a first coating quality parameter of the non-standard coating through a control component in the copper clad laminate glue mixing control system.

[0107] Among them, the curing strategy includes curing time parameters and curing temperature parameters.

[0108] S204, curing the non-standard coating according to the curing strategy through the curing component in the copper clad laminate glue mixing control system to obtain the target finished product.

[0109] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0110] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A copper clad laminate glue mixing control system, characterized in that: The copper clad laminate glue mixing control system comprises a glue mixing component, a coating component, a curing component and a control component; The control component is used to determine the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component; the target coating strategy includes a target coating pressure value, a target coating speed value and a target glue coating amount; The coating component is used to adhere the non-standard glue to the substrate according to the target coating strategy to obtain the non-standard coating; The control component is also used to determine the current curing strategy of the curing component according to the first coating quality parameter of the non-standard coating; the curing strategy includes a curing time parameter and a curing temperature parameter; The curing component is used to perform a curing process on the non-standard coating according to the curing strategy to obtain a target finished product.

2. A copper clad laminate glue mixing control system according to claim 1, characterized in that: When the control component determines the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the control component is specifically used to: Determining a target glue coating amount used by the coating component for the non-standard glue according to a glue quality difference between a first glue quality parameter of the non-standard glue produced by the glue mixing component and a second glue quality parameter of the standard glue produced by the glue mixing component; the standard glue and the non-standard glue are produced by the same glue making process; Determining a target glue coating speed value used by the coating component for the non-standard glue according to the target glue coating amount and the glue quality difference; The target glue coating pressure value used by the coating component for the non-standard glue is determined according to the target glue coating amount, the target glue coating speed value and the glue quality difference.

3. A copper clad laminate glue mixing control system according to claim 2, characterized in that: The control component is also used for: The viscosity difference, solid content difference, drying time difference and bonding strength difference between the first glue quality parameter of the non-standard glue produced by the glue mixing component and the second glue quality parameter of the standard glue produced by the glue mixing component are used as the glue quality difference between the first glue quality parameter of the non-standard glue produced by the glue mixing component and the second glue quality parameter of the standard glue produced by the glue mixing component.

4. A copper clad laminate glue mixing control system according to claim 2, characterized in that: When the control component determines the target glue coating speed value adopted by the coating component for the non-standard glue according to the target glue coating amount and the glue quality difference, the control component is specifically used to: The target glue coating speed value adopted by the coating component for the non-standard glue is determined according to the target glue coating amount, the glue drying time difference and the glue viscosity difference in the glue quality difference.

5. A copper clad laminate glue mixing control system according to claim 2, characterized in that: When the control component determines the target glue coating pressure value used by the coating component for the non-standard glue according to the target glue coating amount, the target glue coating speed value and the glue quality difference, the control component is specifically used to: The target glue coating pressure value used by the coating component for the non-standard glue is determined according to the target glue coating amount, the target glue coating speed value, the glue bonding strength difference and the glue viscosity difference in the glue quality difference.

6. A copper clad laminate glue mixing control system according to claim 1, characterized in that: After determining the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the control component is further used to: Constructing a digital twin model corresponding to the copper clad laminate glue mixing control system; Performing simulation tests in the digital twin model based on the target coating strategy to obtain simulation results; If the simulation result characterization is verified, the coating component is controlled to adhere the non-standard glue to the substrate according to the verified target coating strategy to obtain the non-standard coating.

7. A copper clad laminate glue mixing control system according to claim 6, characterized in that: After determining the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the control component is further used to: Acquire a coating component to adhere the non-standard glue to a substrate according to the target coating strategy, and obtain a coating quality parameter of the non-standard coating process in the non-standard coating process; Based on the process coating quality parameter, adjusting the updated target coating strategy to obtain an updated target coating strategy; The coating component is controlled to adhere the non-standard glue to the substrate according to the updated target coating strategy to obtain the non-standard coating.

8. A copper clad laminate glue mixing control system according to claim 7, characterized in that: After determining the target coating strategy adopted by the coating component for the non-standard glue according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the control component is further used to: Extracting image features of the glue during the coating process, and predicting changes in the quality parameters of the first glue based on the image features; Based on the changes, the updated target coating strategy is adjusted to obtain an adjusted target coating strategy, and the coating component is controlled to adhere the non-standard glue to the substrate according to the adjusted target coating strategy to obtain the non-standard coating.

9. A copper clad laminate glue mixing control system according to claim 1, characterized in that: When the control component determines the current curing strategy of the curing component according to the first coating quality parameter of the non-standard coating, the control component is specifically used to: According to a coating quality difference between a first coating quality parameter of the non-standard coating and a second coating quality parameter of the standard coating, a standard curing strategy corresponding to the standard coating is adjusted to obtain a current curing strategy of the curing component; Wherein, the non-standard coating and the standard coating are prepared by the same coating process.

10. A method for controlling the mixing of glue for copper clad laminates, characterized in that: The method for controlling the glue mixing system of copper clad laminates according to any one of claims 1 to 9 comprises: By means of the control component in the copper clad laminate glue mixing control system, according to the first glue quality parameter of the non-standard glue prepared by the glue mixing component, the target coating strategy adopted by the coating component for the non-standard glue is determined; the target coating strategy includes a target coating pressure value, a target coating speed value and a target glue coating amount; Through the coating component in the copper clad laminate glue mixing control system, according to the target coating strategy, the non-standard glue is applied to the substrate to obtain the non-standard coating; Determining the current curing strategy of the curing component according to the first coating quality parameter of the non-standard coating through the control component in the copper clad laminate glue mixing control system; the curing strategy includes a curing time parameter and a curing temperature parameter; The non-standard coating is cured according to the curing strategy through the curing component in the copper clad laminate glue mixing control system to obtain the target finished product.

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