Brushing system for adhesion promoter

Abstract

The invention discloses an adhesion promoter brushing system, which belongs to the technical field of adhesion process, and comprises the following steps: a detection unit captures key parameters and states influencing the adhesion quality in the whole brushing process in real time; the decision-making unit receives the data, compares the data with a preset standard, identifies deviation and generates a correction instruction to realize self-adaptive adjustment; the execution unit responds to the instruction to complete core procedures such as base material preprocessing and coating and also performs compensation operation; the management and control logic unit builds a bidirectional data channel, and achieves collection-judgment-execution-feedback circulation so as to cooperate with all the units. The system solves the problems of hidden risks in pretreatment, insufficient interlayer bonding force and poor solvent volatilization suitability in the prior art through closed-loop cooperation of four units, matching of a special transition coating and precise parameter control, improves the brushing stability and the bonding reliability, and meets the high-end industrial requirements.

Description

Technical Field

[0001] This invention relates to the field of adhesive process technology, specifically to a brush application system for an adhesive aid. Background Technology

[0002] In rubber-metal bonding processes, the application of tackifiers is a crucial step in determining bond quality. While existing technologies have addressed fundamental issues such as incomplete pretreatment, uneven coating, and solvent residue, three key shortcomings remain in practical applications at the high-end industrial level: The lack of real-time verification of pretreatment effects poses hidden risks. Existing processes rely solely on fixed parameters for pretreatment without testing the surface activity of the treated substrate. Due to material differences or environmental interference, some substrates may still fail to meet surface activity standards even after standardized pretreatment. Directly proceeding to the coating process can lead to insufficient bonding strength at the adhesive interface, resulting in potential debonding during long-term use.

[0003] Insufficient interlayer bonding strength restricts overall adhesion performance. The primer, intermediate coat, and topcoat are bonded only through physical wetting, lacking a targeted transition design. The phenolic resin system of the intermediate coat has limited compatibility with the epoxy system of the topcoat, and weak areas are easily formed at the interlayer interfaces. During high and low temperature cycling, the risk of interlayer delamination increases significantly.

[0004] The solvent evaporation parameters are fixed, resulting in poor adaptability. Existing processes use fixed heating temperatures and times for solvent evaporation, failing to consider the impact of varying ambient humidity and substrate thickness on the evaporation rate. When ambient humidity is high or the substrate is thick, incomplete solvent evaporation is likely to occur; conversely, when the environment is dry or the substrate is thin, excessively rapid evaporation may lead to coating cracking. Summary of the Invention

[0005] To address the problems of the prior art, the present invention provides a brush application system for an adhesion promoter, comprising: The detection unit is used to capture key parameters and status information that affect the bonding quality in real time throughout the entire brush coating process; The decision unit, connected to the detection unit, is used to receive the data output by the detection unit, compare and analyze it with the preset bonding quality standard, identify parameter drift or state deviation, generate targeted correction instructions, and realize adaptive adjustment actions for deviation judgment and compensation decision. The execution unit, connected to the decision unit, is used to respond to the correction instructions of the decision unit, complete core process steps such as substrate pretreatment, adhesive coating, and solvent evaporation, and at the same time perform compensation operations such as parameter adjustment and process verification. The control logic unit is used to establish a two-way data interaction channel between the detection unit, decision-making unit, and execution unit, realizing a cycle from data acquisition to deviation judgment to instruction execution to result feedback, enabling each unit to work together and continuously optimize the bonding effect; The detection unit continuously transmits the collected real-time data to the decision-making unit. Based on the data comparison results, the decision-making unit issues process execution or parameter correction instructions to the execution unit. After the execution unit completes the operation, the detection unit collects the execution results a second time and feeds them back to the decision-making unit. The control logic unit dynamically regulates the flow process until all process parameters and statuses meet the bonding quality requirements and the brushing is completed.

[0006] Furthermore, the detection unit includes: a parameter acquisition subunit and a state recognition subunit; The parameter acquisition subunit includes a sandblasting pressure sensor, a plasma power detector, a temperature sensor, a spraying pressure sensor, a solvent residue sensor, a sandblasting distance sensor, a plasma displacement sensor, and a brush angle sensor, which are responsible for capturing physical and motion parameters. The state recognition subunit is equipped with a contact angle measuring instrument, an X-ray photoelectron spectrometer, a colorimeter, a visual recognition module, and a coating thickness gauge, and is responsible for identifying the surface activity of the substrate and the state of the coating. The data collected by the parameter acquisition subunit and the status recognition subunit are transmitted to the decision-making unit in real time through the control logic unit, providing data support for decision-making.

[0007] Furthermore, the decision-making unit includes: a data comparison subunit and a compensation instruction generation subunit. The data comparison subunit has a built-in preset process standard database. It receives real-time data transmitted by the detection unit through the control logic unit and automatically calculates the deviation from the standard value. The compensation instruction generation subunit adopts a hierarchical decision-making mechanism based on the deviation range. When the deviation is ≤5%, the process is judged to be normal. When the deviation is 5%-10%, a first-level compensation instruction is generated. When the deviation is >10%, a second-level compensation instruction is generated. The decision-making unit is required to have a delay of ≤0.3s from receiving data to outputting instructions, and the generated instructions are sent to the execution unit through the control logic unit.

[0008] Furthermore, the execution unit includes: a compensation execution subunit; The compensation execution subunit and the decision-making unit establish an instruction receiving channel through the control logic unit; The compensation execution subunit is equipped with adjustment components such as a pressure regulating valve, power regulator, temperature control module, robotic arm, and drip tube control assembly. After receiving the compensation command issued by the decision unit, it adjusts the corresponding process parameters. The requirement for the compensation execution subunit is that the compensation operation response time is ≤0.5s. The adjusted process status is collected in real time by the detection unit and fed back to the decision-making unit to form a compensation closed loop.

[0009] Furthermore, the execution unit includes a process execution subunit; The process execution subunit interacts with the decision-making unit and the detection unit through the control logic unit; The process execution subunit completes the process sequentially according to the following preset standards; Pretreatment involves sandblasting the area to be treated on the substrate; then using a plasma cleaner; placing the plasma-cleaned substrate in an oven for heating; and finally transferring the substrate to a heating table, where the temperature is controlled between 55℃ and 65℃. For the primer application, use a brush to dip into the primer solution, keeping the brush perpendicular to the substrate surface to be coated, and brush horizontally along the surface; after brushing, observe the coated surface until there is no liquid reflection on the surface; For the intermediate coat, use the same brush as the primer to apply the black intermediate coat solution horizontally along the surface of the substrate. After brushing, let it stand for 13-15 minutes until the color of the brushed surface changes from black to dark blue. Then, dip the brush in the intermediate coat solution again and brush it vertically along the surface. After the second brushing, place the substrate in a sealed environment and let it stand at room temperature for 18-22 hours. For topcoat treatment, use a dropper to draw up the topcoat solution and drop it onto the substrate surface that has been coated with primer and intermediate coat, allowing the topcoat solution to flow and cover the entire area to be coated; after the topcoat solution has completely covered the area, turn on the heating table and control the temperature between 55℃ and 65℃, and heat for 1 hour to evaporate the solvent in the topcoat; stop heating when there is no liquid residue on the coated surface and a transparent film has formed, and the adhesion promoter application is complete; The execution status of each process is monitored in real time by the detection unit, and the data is fed back to the decision-making unit. If adjustments are needed, they are made through the compensation execution subunit.

[0010] Furthermore, the transition coating solution in the coating strengthening process is an epoxy-polyurethane composite system with a solid content of 30-35% and a molar ratio of epoxy groups to polyurethane groups of 1:0.8-1.2. This transition coating serves as a connecting layer between the intermediate coat and the top coat, sequentially connecting with the intermediate coat and top coat processes in the process execution subunit. After coating, the thickness is monitored by the coating thickness gauge in the detection unit to ensure a tight bond with the intermediate coat and top coat.

[0011] Furthermore, the detection unit collects process data and transmits it to the decision unit through the data flow channel of the control logic unit; The decision-making unit compares the data with preset standards, generates corresponding instructions, and sends them to the execution unit through the instruction stream channel. The execution unit receives instructions and completes the process or compensation operation; The detection unit collects data on the operation results a second time and transmits it to the decision-making unit through the feedback channel; When the decision-making unit determines that the data deviation is ≤2%, it triggers the next process step through the control logic unit; when the deviation is still >5%, it triggers an alarm and suspends the process, which is restarted after manual confirmation.

[0012] Furthermore, the core range of the pre-treatment sandblasting particle size is 80-100 mesh, and the extended range is 100-120 mesh; the core range of the settling time for the intermediate coating process is 19-21 hours, and the extended range is 18-22 hours; the above parameter ranges are preset adaptation standards of the process execution subunit, corresponding to the sandblasting particle size and settling time data collected in real time by the parameter acquisition subunit of the detection unit. Based on the comparison results between the collected data and the corresponding ranges, the decision unit generates an instruction on whether to adjust.

[0013] Furthermore, the temperature fluctuation of the heating table in the solvent evaporation process is ≤±1℃, and the maximum allowable fluctuation is no more than ±2℃. This requirement is the temperature control standard of the process execution subunit, which is monitored in real time by the temperature sensor of the detection unit and the data is fed back to the decision unit. If the fluctuation range is exceeded, the temperature control module of the compensation execution subunit is adjusted. The integrity of the surface coating coverage is confirmed in real time by the visual recognition module of the detection unit, with an accuracy rate of ≥99%. The recognition result is fed back to the decision unit through the control logic unit. If the coverage is incomplete, the dropper control component of the compensation execution subunit is triggered to add more drops.

[0014] The beneficial effects of this invention are: By establishing a closed-loop collaborative system consisting of detection, decision-making, execution, and control logic units, coupled with a dedicated transition coating for the epoxy-polyurethane composite system and precise parameter control, the system achieves real-time verification of pretreatment effects and eliminates hidden risks. It also strengthens interlayer bonding, reduces the risk of peeling under high and low temperature cycling, and enables adaptive adjustment of solvent evaporation parameters, avoiding solvent residue or coating cracking issues. Ultimately, it improves brushing stability and adhesion reliability. Attached Figure Description

[0015] Figure 1 A schematic diagram of the coating process provided by the present invention; Figure 2 This is a schematic diagram of the logical flow of each unit in the coating process provided by the present invention; Figure 3 This is a schematic diagram of the coating and bonding process provided by the present invention. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-3 The present invention provides a brush application system for an adhesive aid, comprising: The detection unit is used to capture key parameters and status information that affect the bonding quality in real time throughout the entire brush coating process. The key parameters cover the gradient parameters of each stage of substrate treatment, coating operation, and solvent evaporation. The status information includes substrate surface activity, coating uniformity, and interlayer bonding status. The decision unit, connected to the detection unit, is used to receive the data output by the detection unit, compare and analyze it with the preset bonding quality standard and process parameter gradient system, identify parameter drift or state deviation, generate targeted correction instructions, realize adaptive adjustment actions for deviation judgment and compensation decision, and adapt to the personalized needs of different substrate thicknesses and sizes. The execution unit, connected to the decision unit, is used to respond to the correction instructions of the decision unit, complete core process steps such as substrate pretreatment, adhesive coating, and solvent evaporation, and perform compensation operations such as parameter adjustment and process verification. It is suitable for industrial scenarios with high requirements for bonding strength and high and low temperature stability, such as automotive seals and engineering machinery shock absorbers. The control logic unit establishes a two-way data interaction channel between the detection unit, decision-making unit, and execution unit, realizing a cycle from data acquisition to deviation judgment, instruction execution, and result feedback. This enables the units to work collaboratively, continuously optimize the bonding effect, and ensure the efficiency and stability of industrial mass production. Specifically, the detection unit continuously transmits the collected real-time data to the decision-making unit. Based on the data comparison results, the decision-making unit issues process execution or parameter correction instructions to the execution unit. After the execution unit completes its operation, the detection unit collects the execution results again and feeds them back to the decision-making unit. The control logic unit dynamically regulates this process until all process parameters and states meet the bonding quality requirements, thus completing the coating process.

[0018] In some embodiments, the detection unit includes: a parameter acquisition subunit and a state recognition subunit; The parameter acquisition subunit includes a sandblasting pressure sensor, a plasma power detector, a temperature sensor, a spraying pressure sensor, a solvent residue sensor, a sandblasting distance sensor, a plasma displacement sensor, and a brush angle sensor. It is responsible for capturing physical and motion parameters. The physical parameters include gradient parameters such as sandblasting pressure (0.45-0.55MPa), sandblasting distance (16-18cm), sandblasting angle (48-52°), plasma power (600-700W), and plasma processing moving speed (2.2-2.8cm / s). The motion parameters include brush bending arc (12-13°) and robotic arm reciprocating path deviation (±2mm). The state recognition subunit is equipped with a contact angle measuring instrument, an X-ray photoelectron spectrometer, a colorimeter, a visual recognition module, and a coating thickness gauge. It is responsible for identifying the surface activity of the substrate and the coating state, wherein the surface activity is defined as having a polar group content ≥ 5.5 × 10⁻⁶. 14 pcs / cm 2 As the judgment criteria, the coating status includes indicators such as coating thickness of 5-8μm and missing coating rate of 0; the data collected by the parameter acquisition subunit and the status recognition subunit are transmitted to the decision unit in real time through the control logic unit to provide accurate data support for decision-making.

[0019] In some embodiments, the decision-making unit includes: a data comparison subunit and a compensation instruction generation subunit; The data comparison subunit has a built-in preset process standard database, which contains the core parameters and extended parameter gradients of each process, such as sandblasting particle size core 80-100 mesh / extended 100-120 mesh, intermediate coating settling time core 19-21 hours / extended 18-22 hours, etc. It receives real-time data transmitted by the detection unit through the control logic unit and automatically calculates the deviation from the standard value. The compensation instruction generation subunit adopts a hierarchical decision-making mechanism based on the deviation range. When the deviation is ≤5%, the process is judged to be normal. When the deviation is 5%-10%, a first-level compensation instruction is generated. When the deviation is >10%, a second-level compensation instruction is generated. The compensation instruction needs to be adapted to the parameter adjustment requirements of different substrates (such as thick aluminum plates and thin aluminum plates). The decision-making unit is required to have a delay of ≤0.3s from receiving data to outputting instructions. The generated instructions are sent to the execution unit through the control logic unit to ensure the timeliness of parameter adjustment and the continuity of the process.

[0020] In some embodiments, the execution unit includes: a compensation execution subunit; The compensation execution subunit and the decision-making unit establish an instruction receiving channel through the control logic unit; the compensation execution subunit is equipped with adjustment components such as a pressure regulating valve, a power regulator, a temperature control module, a robotic arm, and a drip control assembly; The temperature control module has a temperature control accuracy of ≤±1℃, and the dropper control component can control 2.2-2.8mL / 100cm. 2 The range of drop volume can be adjusted, and the robotic arm's movement speed can be adapted and adjusted within the range of 2.2-2.8 cm / s. After receiving the compensation command issued by the decision unit, the corresponding process parameters are precisely adjusted. The requirement for the compensation execution subunit is that the compensation operation response time is ≤0.5s. The adjusted process status is collected in real time by the detection unit and fed back to the decision unit to form a compensation closed loop, ensuring that key indicators such as coating uniformity and sufficient solvent evaporation meet the standards.

[0021] In some embodiments, the execution unit includes a process execution subunit; The process execution subunit interacts with the decision-making unit and the detection unit through the control logic unit; the process execution subunit completes the process sequentially according to the following preset standards: pretreatment, the area to be treated of the substrate to be coated is first sandblasted, the core particle size of the sandblasting material is 80-100 mesh, the extension is 100-120 mesh, the sandblasting pressure is 0.45-0.55MPa, the distance is 16-18cm, and the angle is 48-52°; then a plasma cleaner is used, the outer flame area of ​​the yellow flame is limited, and the area to be treated is moved back and forth 20 times at a speed of 2.2-2.8cm / s, the deviation between the single reciprocating path length and the size of the area to be treated is ≤±2mm; the substrate after plasma cleaning is placed in an oven and heated at 60℃ for 1 hour; after heating, the substrate is transferred to a heating table, and the temperature of the heating table is controlled within 55℃-65℃; For the primer application, use a nylon or polyester fiber brush with a length of 9-11mm to dip into the primer solution. Keep the brush perpendicular to the substrate surface to be coated and brush horizontally along the surface. Control the brush bristle bending arc of 12-13° to ensure complete adhesion. The brush width should be adapted to the width of the area to be treated with a tolerance of ±3mm. After brushing, observe the coated surface until there is no liquid reflection on the surface. For the intermediate coat application, use the same brush as the primer to apply the black intermediate coat solution horizontally along the surface of the substrate. After brushing, let it stand for 13-15 minutes until the color of the surface changes from black to dark blue. Then, dip the brush in the intermediate coat solution again and brush it vertically along the surface. After the second coat, place the substrate in a sealed environment with a relative humidity of 45-55% and a room temperature of 23.5-24.5℃ for 18-22 hours. For surface coating treatment, use a dropper to draw up the surface coating solution at a rate of 2.2-2.8 mL / 100 cm². 2The amount of solution is added dropwise to the surface of the substrate that has been coated with primer and intermediate coat, allowing the topcoat solution to flow and cover the entire area to be coated. After the topcoat solution has completely covered the area, the heating stage is turned on and the temperature is controlled between 55℃ and 65℃. The heating is carried out for 1 hour to evaporate the solvent in the topcoat. The heating is stopped when there is no liquid residue on the coated surface and a transparent film of 5-8μm thickness is formed, thus completing the application of the adhesion promoter. The execution status of each process is monitored in real time by the detection unit, and the data is fed back to the decision unit. If adjustments are needed, they are made through the compensation execution subunit.

[0022] In some embodiments, the transition coating solution of the coating reinforcement process is an epoxy-polyurethane composite system with a solid content of 30-35% and a molar ratio of epoxy groups to polyurethane groups of 1:0.8-1.2. The topcoat solution is a polyether-modified epoxy solution containing a aziridine crosslinking agent. The transition coating and the topcoat solution form a chemical crosslinking bond, which improves the interlayer adhesion. The transition coating serves as a connecting layer between the intermediate coating and the topcoat, and is sequentially connected to the intermediate coating process and the topcoat process of the process execution subunit. After coating, the thickness is monitored by the coating thickness gauge of the detection unit to ensure that the coating thickness deviation is ≤±5μm. It forms a tight bond with the intermediate coating and the topcoat, ensuring the interlayer stability of the bonded parts under high and low temperature cycling environments.

[0023] In some embodiments, the detection unit collects process data and transmits it to the decision unit through the data flow channel of the control logic unit. The data includes quantitative indicators such as the oil removal rate of the substrate surface, the content of polar groups, the coating omission situation, and the solvent residue. The decision unit compares the data with preset standards and generates corresponding instructions, wherein the preset standards include an oil removal rate ≥99%, a solvent residue ≤0.1%, and a polar group content ≥5.5×10⁻⁶. 14 pcs / cm 2 The instructions are sent to the execution unit via the instruction flow channel; the execution unit receives the instructions and completes the process or compensation operation; the detection unit collects data on the operation results a second time and transmits it to the decision unit via the feedback channel; when the decision unit determines that the data deviation is ≤2%, it triggers the next process step through the control logic unit; when the deviation is between 2% and 5%, it triggers a first-level compensation instruction and continues to monitor; when the deviation is still >5%, it triggers an alarm and suspends the process, which is restarted after manual confirmation, to ensure that the bonding quality meets the requirements of extreme temperature conditions.

[0024] In some embodiments, the core range of the pre-treatment sandblasting particle size is 80-100 mesh, and the extended range is 100-120 mesh, corresponding to a core sandblasting pressure of 0.45-0.55 MPa and an extended range of 0.4-0.6 MPa, and a core sandblasting distance of 16-18 cm and an extended range of 15-19 cm, adapting to different thickness substrates (the core parameters are selected for 2mm thick aluminum plates, and the extended parameters are selected for 1mm thin aluminum plates); the core range of the settling time for the intermediate coating process is 19-21 hours, and the extended range is 18-22 hours, corresponding to a core relative humidity of 45-55% and a core room temperature of 23.5-24.5℃ in a closed environment; the above parameter ranges are the preset adaptation standards of the process execution subunit, corresponding to the sandblasting particle size, settling time, and ambient temperature and humidity data collected in real time by the parameter acquisition subunit of the detection unit. The decision unit generates an instruction on whether to adjust based on the comparison results of the collected data and the corresponding ranges, ensuring the process adaptability and substrate matching degree.

[0025] In some embodiments, the temperature fluctuation of the heating stage in the solvent evaporation process is ≤±1℃, with a maximum allowable fluctuation of no more than ±2℃. The heating time is fixed at 1 hour. This requirement is the temperature control standard of the process execution subunit, which is monitored in real time by the temperature sensor of the detection unit. The data is fed back to the decision unit. If the fluctuation range is exceeded, the temperature control module of the compensation execution subunit is adjusted to ensure that the solvent residue is reduced to below 0.1%. The integrity of the topcoat casting coverage is confirmed in real time by the visual recognition module of the detection unit. The recognition criteria include no missed areas, uniform casting thickness (5-8μm), and no bubbles on the surface. The recognition accuracy is ≥99%. The recognition result is fed back to the decision unit through the control logic unit. If the coverage is incomplete or the thickness is uneven, the dropper control component of the compensation execution subunit is triggered to dispense 2.2-2.8mL / 100cm. 2 The gradient range is supplemented with additional drops, while the temperature of the heating platform is adjusted to maintain stability.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A brush coating system of adhesion promoters, characterized in that, The application relates to a real-time monitoring and compensation system for a brush coating process. The system comprises: a detection unit for capturing key parameters and state information affecting bonding quality in real time; a decision unit connected with the detection unit for receiving data output by the detection unit, comparing the data with preset bonding quality standards, identifying parameter drift or state deviation, generating targeted correction instructions, and realizing adaptive adjustment of deviation judgment and compensation decision; an execution unit connected with the decision unit for completing core process procedures such as substrate pretreatment, adhesion promoter coating and solvent evaporation, and simultaneously performing parameter adjustment and process review and other compensation operations in response to the correction instructions of the decision unit; a control logic unit for establishing a two-way data interaction channel of the detection unit, the decision unit and the execution unit, realizing a cycle of data collection-deviation judgment-instruction execution-result feedback, and enabling the units to work cooperatively and continuously optimize bonding effect; 2. The brush system of adhesion promoter according to claim 1, characterized in that, wherein the detection unit continuously transmits real-time data to the decision unit, the decision unit issues process execution or parameter correction instructions to the execution unit based on data comparison results, the execution unit completes the operation, the detection unit collects the execution result again and feeds it back to the decision unit, and the control logic unit dynamically controls the flow process until the process parameters and states of the whole process meet the bonding quality requirements and the brush coating is completed. The detection unit comprises a parameter collection subunit and a state identification subunit. The parameter collection subunit comprises a sandblasting pressure sensor, a plasma power detector, a temperature sensor, a spraying pressure sensor, a solvent residue sensor, a sandblasting distance sensor, a plasma displacement sensor and a brush angle sensor, and is responsible for capturing physical parameters and motion parameters. The state identification subunit is configured with a contact angle measuring instrument, an X-ray photoelectron spectrometer, a color difference meter, a visual recognition module and a coating thickness gauge, and is responsible for identifying substrate surface activity and coating state.

3. The brush coating system of adhesion promoter according to claim 1, characterized in that, The data collected by the parameter collection subunit and the state identification subunit are transmitted to the decision unit in real time through the control logic unit, thereby providing data support for decision making. The decision unit comprises a data comparison subunit and a compensation instruction generation subunit. The data comparison subunit is internally provided with a preset process standard database, receives real-time data transmitted by the detection unit through the control logic unit, and automatically calculates deviation amplitude from standard values. The compensation instruction generation subunit adopts a hierarchical decision mechanism based on the deviation amplitude, determines that the process is normal when the deviation is less than or equal to 5%, generates a first-level compensation instruction when the deviation is 5%-10%, and generates a second-level compensation instruction when the deviation is greater than 10%.

4. The brush system of adhesion promoter according to claim 1, characterized in that, The response requirement of the decision unit is that the delay from receiving data to outputting instructions is less than or equal to 0.3s, and the generated instructions are issued to the execution unit through the control logic unit. The execution unit comprises a compensation execution subunit. The compensation execution subunit and the decision unit establish an instruction receiving channel through the control logic unit. The compensation execution subunit is configured with pressure regulating valves, power regulators, temperature control modules, mechanical arms, dropper control components and other adjustment components, and adjusts corresponding process parameters after receiving the compensation instructions issued by the decision unit. The requirement of the compensation execution subunit is that the compensation operation response time is less than or equal to 0.5s, the adjusted process state is collected in real time by the detection unit and fed back to the decision unit, and a compensation closed loop is formed.

5. The brush system of adhesion promoter according to claim 1, characterized in that, The execution unit comprises a process execution subunit; The process execution subunit interacts with the decision unit and the detection unit through the management and control logic unit; The process execution subunit completes the processes in the following preset standards in turn; Pre-treatment, sandblasting treatment is first performed on the to-be-treated area of the brushed coating substrate; then a plasma cleaning machine is used; the substrate cleaned by the plasma is placed in an oven for heating; after heating, the substrate is transferred to a heating table, and the temperature of the heating table is controlled within 55-65°C; Base coating, a brush is dipped in the base coating solution, the brush is kept perpendicular to the surface of the substrate to be brushed, and the surface is brushed horizontally; after brushing, the brushed surface is observed until there is no liquid reflection on the surface; Mid-coating, the same brush as the base coating is dipped in the black mid-coating solution, and the surface of the substrate to be brushed is brushed horizontally; after brushing, the substrate is placed for 13-15 minutes, and when the color of the brushed surface changes from black to black blue, the mid-coating solution is dipped again, and the brushed surface is brushed vertically; after the second brushing, the substrate is placed in a closed environment and left to stand at room temperature for 18-22 hours; Surface coating treatment, a dropper is used to suck the surface coating solution and drop it onto the surface of the substrate covered with the base coating and the mid-coating, so that the surface coating solution covers the entire brushed area by itself; after the surface coating solution completely covers the surface, the heating table is turned on and the temperature is controlled within 55-65°C, and heating is performed for 1 hour to volatilize the solvent in the surface coating; until there is no liquid residue on the brushed surface and a transparent film is formed, heating is stopped, and the adhesion promoter brushing is completed. The execution state of each process is monitored in real time by the detection unit, and the data is fed back to the decision unit; if adjustment is needed, it is realized through the compensation execution subunit.

6. The adhesion promoter brushing system of claim 5, wherein, The transition coating solution of the coating strengthening process is an epoxy-polyurethane composite system with a solid content of 30-35%, and the molar ratio of epoxy groups to polyurethane groups is 1:0.8-1.2; The transition coating serves as a connecting layer between the mid-coating and the surface coating, and sequentially connects the mid-coating process and the surface coating process of the process execution subunit; after coating, the thickness is monitored by the coating thickness gauge of the detection unit to ensure that the mid-coating and the surface coating are tightly combined.

7. The brush system of adhesion promoter according to claim 1, characterized in that, The detection unit collects process data and transmits it to the decision unit through the data flow channel of the management and control logic unit; The decision unit compares the data with the preset standards, generates corresponding instructions, and sends them to the execution unit through the instruction flow channel; The execution unit receives the instructions and completes the processes or compensation operations; The detection unit collects data on the operation results again and transmits them to the decision unit through the feedback channel; When the decision unit determines that the data deviation is less than or equal to 2%, the next process link is triggered through the management and control logic unit; if the deviation is still greater than 5%, an alarm is triggered and the process is paused, and the process is restarted after manual confirmation. ​ 8. The brush system of adhesion promoter according to claim 5, characterized in that, The pre-treatment sandblasting particle size core range is 80-100 mesh, and the extended range is 100-120 mesh; the standing time of the intermediate coating process core range is 19-21 hours, and the extended range is 18-22 hours; the above parameter range is the preset adaptation standard of the process execution subunit, corresponding to the sandblasting particle size and standing time data collected by the parameter collection subunit of the detection unit in real time, and the decision unit generates an instruction for adjustment based on the comparison result of the collected data and the corresponding range.

9. The brush system of adhesion promoter according to claim 5, characterized in that, The heating table temperature fluctuation of the solvent evaporation process is ≤±1℃, and the maximum allowable fluctuation is not more than ±2℃, which is the temperature control standard of the process execution subunit, monitored by the temperature sensor of the detection unit in real time, and the data is fed back to the decision unit. If it exceeds the fluctuation range, adjust it through the temperature control module of the compensation execution subunit; The surface coating flow covering integrity is confirmed by the visual recognition module of the detection unit in real time, and the recognition accuracy is ≥99%, and the recognition result is fed back to the decision unit through the management logic unit. If the coverage is not complete, trigger the dropper control component of the compensation execution subunit to supplement the drop.

Images