A linkage-controlled automatic squeezing roller device for composite copper foil production

Abstract

This utility model discloses a linkage-controlled self-regulating squeezing roller device for composite copper foil production. It is characterized by comprising: an electroplating tank and a conveying roller for transporting copper foil; a squeezing support plate disposed on the electroplating tank, with the squeezing roller installed within the support plate; a washing unit, an oven, and an air knife unit disposed on the electroplating tank; and a detection unit disposed on the electroplating tank, located on the side of the oven where the copper foil is output. The detection unit includes a support, an infrared moisture meter, and a laser particulate matter detector. The support is arranged in an inverted L-shape, and the infrared moisture meter and the laser particulate matter detector are mounted side-by-side on the support for real-time collection of the moisture content and cleanliness of the foil surface. Real-time monitoring and automatic control functions replace manual stop-and-detection and parameter adjustment, improving production efficiency while reducing human error and minimizing losses of defective products due to manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of new energy material manufacturing equipment technology, specifically a linkage self-controlled extrusion roller device for composite copper foil production. Background Technology

[0002] Composite copper foil is a key material in new energy batteries, electronic components, and other fields. Its surface moisture content, cleanliness, and residual passivation solution directly determine the quality of subsequent processing (such as dyne uniformity and deposit control) and the performance of downstream products. In the production process of composite copper foil, the extrusion roller is the core equipment for controlling these indicators; however, existing technologies have many shortcomings and cannot meet the demands of high-precision production, such as:

[0003] 1. Lack of parameter coordination and low control precision: In existing liquid extraction devices, parameters such as water washing pressure (0.2-0.8 MPa), liquid extraction roller pressure, and air knife temperature are mostly set independently based on manual experience or operated at fixed intervals, lacking a coordinated control mechanism. When the foil surface condition changes (e.g., increased moisture content, increased impurities), the parameters cannot be adjusted in real time, resulting in large fluctuations in moisture content, low cleanliness pass rate, and severely affecting foil surface consistency.

[0004] 2. Poor cleanliness stability and the existence of cleaning blind spots: The pressure and flow rate (5-10L / min) of the water washing unit are fixed, making it impossible to dynamically adjust the cleaning intensity for residual impurities (such as electrolyte particles and passivator decomposition products) in different areas of the foil surface. Especially in the edge area of ​​the copper foil, cleaning blind spots are easily formed, and the impurity residue rate is higher than that in the middle area, which can easily cause electrode coating defects in subsequent processing.

[0005] 3. High cost and low production efficiency due to manual intervention: Regular shutdowns are required to check the foil surface condition and manually adjust parameters such as the pressure of the squeezing roller, the water spray angle, and the air knife temperature. Each adjustment takes 20-30 minutes, leading to reduced production efficiency. Furthermore, manual operation is prone to errors, further reducing the cleanliness pass rate and making it difficult to guarantee quality stability.

[0006] 4. The problem of residual passivation solution is prominent, affecting downstream processing: Traditional extrusion devices do not completely remove residual passivation solution from the passivation solution section, resulting in organic residue on the foil surface exceeding 0.1 mg / cm². This residue can lead to dyne fluctuations exceeding 5 mN / m in downstream processes, excessive microscopic deposits (particle size > 10 μm), and consequently reduced adhesion at the electrode coating interface and the adhesion of the lamp strip film, increasing the product defect rate.

[0007] 5. Outdated control methods and poor adaptability: Existing technologies (such as patent CN222251041U) rely solely on cylinders and pressure regulating valves to achieve single pressure regulation. They cannot respond to dynamic changes in multiple parameters such as moisture content and cleanliness. They can only adapt to fixed production conditions and are difficult to meet the processing needs of composite copper foil under different specifications and production speeds.

[0008] Therefore, we need to propose a linkage-controlled self-controlled extrusion roller device for composite copper foil production. Utility Model Content

[0009] The purpose of this invention is to provide a linkage self-controlled squeezing roller device for composite copper foil production with real-time monitoring and automatic control functions to replace manual shutdown detection and parameter adjustment, thereby improving production efficiency and reducing human operation errors. This can reduce the loss of defective products caused by human intervention, thus solving the problems mentioned in the background art.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A linkage-controlled self-regulating extrusion roller device for composite copper foil production includes:

[0012] An electroplating tank and conveyor rollers for conveying copper foil, the conveyor rollers being mounted on the electroplating tank;

[0013] An extrusion support plate is provided on the electroplating tank. An extrusion roller is installed inside the extrusion support plate. The extrusion roller includes a lower roller and an upper roller. The copper foil is conveyed by the conveying roller and dehydrated by extrusion between the lower roller and the upper roller to achieve the extrusion function.

[0014] A water washing unit, an oven, and an air knife unit are installed on the electroplating tank. The water washing unit and the air knife unit are located on both sides of the extrusion roller, and the oven is located between the water washing unit and the extrusion support plate. The water washing unit is used to rinse the copper foil, and the oven and air knife unit are used to dry the copper foil.

[0015] The detection unit is set on the electroplating tank and is located on the side of the copper foil output by the air knife unit. The detection unit includes a bracket, an infrared moisture meter and a laser particulate matter detector. The bracket is set in an inverted L-shape. The infrared moisture meter and the laser particulate matter detector are installed side by side on the bracket and are used to collect the moisture content and cleanliness of the foil surface in real time.

[0016] Preferably, the lower roller is rotatably mounted on the electroplating tank, a hydraulic cylinder is installed on the top of the extrusion support plate, the lower end of the hydraulic rod of the hydraulic cylinder passes through the extrusion support plate and is fixedly connected to a U-shaped frame, the upper roller is rotatably mounted in the U-shaped frame, and the hydraulic cylinder drives the U-shaped frame to adjust the gap between the upper roller and the lower roller, i.e., the pressure of the extrusion roller.

[0017] Preferably, the washing unit includes a U-shaped washing support plate, a rinsing pipe installed in the washing support plate, a fan-shaped nozzle, a pressure regulating valve, a flow sensor, and a servo angle adjustment mechanism. The rinsing pipe is connected to an external water source through a washing connection pipe. The fan-shaped nozzles are evenly distributed along the width of the copper foil with a spacing of 100-150mm. The servo angle adjustment mechanism adjusts the nozzle angle through gear transmission and dynamically changes the rinsing intensity in conjunction with the pressure regulating valve, so as to achieve precise cleaning of impurities in different areas and eliminate blind spots in edge cleaning.

[0018] Preferably, the air knife unit includes a U-shaped air blowing support plate, a built-in electric heating tube, a temperature sensor, and an air knife outlet. The temperature sensor collects the air temperature of the air knife outlet in real time, and the air knife outlet is connected to an external air source through an air blowing connection pipe, which feeds back to the control system. When the temperature deviates from the set value, the system adjusts the power of the electric heating tube to ensure that the outlet temperature is stable and to assist in the drying of copper foil.

[0019] Preferably, the oven has a built-in temperature sensor and a heating tube assembly installed on its inner wall. The oven and the air knife unit form a "two-stage drying" process, where the air knife enables rapid dehydration of the copper foil surface, and the oven enables deep drying. The two work together to rapidly reduce the moisture content of the foil surface under high humidity conditions.

[0020] Preferably, both the lower and upper rollers are equipped with integrated ultrasonic transducers that are evenly distributed along the roller axis. The ultrasonic transducers are periodically activated manually and operate continuously for 1 second. They remove impurities adhering to the roller surface through high-frequency vibration, avoiding cross-contamination and ensuring the cleanliness of the roller surface.

[0021] Preferably, a control panel is installed on the outer wall of the washing support plate in the washing unit, and the control panel integrates a display screen, control buttons and a PLC controller.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The pressure of the squeezing roller and the water washing unit are controlled in a coordinated manner to eliminate cleaning blind spots, reduce the amount of passivation liquid residue, reduce the fluctuation range of dyne value in downstream processes, reduce the rate of micro-attachment (particle size > 10μm) exceeding the standard, and greatly improve the bonding force of the electrode coating interface.

[0024] 2. The air knife-oven two-stage drying system, combined with real-time moisture content monitoring, can still stably control the moisture content of the foil surface even in a relatively humid environment. The control accuracy is improved compared to traditional equipment, avoiding subsequent processing defects (such as oxidation and rust, uneven surface cleanliness, etc.) caused by moisture content fluctuations.

[0025] 3. The fuzzy PID algorithm and weight allocation model of the intelligent control system enable parameters such as water washing pressure, squeezing roller pressure, and air knife temperature to respond synergistically to changes in foil surface state, thereby improving the cleanliness qualification rate, reducing the surface quality consistency error of different batches of composite copper foil, and significantly reducing quality fluctuations.

[0026] 4. The device can be directly integrated into existing composite copper foil electroplating production lines without replacing core production equipment. The transformation cycle is short and the transformation cost is low, saving enterprises equipment upgrade costs and quickly achieving a dual improvement in production capacity and quality.

[0027] 5. Real-time monitoring and automatic control functions replace manual shutdown for inspection and parameter adjustment, improving production efficiency while reducing human error and minimizing losses of defective products due to human intervention. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the water washing unit of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the drying oven of this utility model;

[0031] Figure 4 This is a schematic diagram of the upper roller structure of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the air knife unit of this utility model;

[0033] Figure 6 This is a schematic diagram of the electroplating tank of this utility model.

[0034] In the diagram: 1. Electroplating tank; 2. Conveying roller; 3. Drying oven; 4. Lower roller; 5. Upper roller; 6. Washing unit; 7. Air knife unit; 8. Hydraulic cylinder; 9. Washing connecting pipe; 10. Air blowing connecting pipe; 11. Heating tube assembly; 12. Support frame; 13. Infrared moisture meter; 14. Laser particulate matter detector; 15. Control panel; 16. Washing support plate; 17. Extrusion support plate; 18. Air blowing support plate. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1-6 This utility model provides a technical solution:

[0037] A linkage-controlled self-regulating extrusion roller device for composite copper foil production includes:

[0038] The electroplating tank 1 and the conveying roller 2 for conveying copper foil are mounted on the electroplating tank 1; the drying oven 3 is set on the electroplating tank 1, and the drying oven 3 is equipped with a squeezing roller, which includes a lower roller 4 and an upper roller 5. The copper foil is conveyed by the conveying roller 2 and squeezed and dehydrated between the lower roller 4 and the upper roller 5 to achieve the squeezing function; the outer wall of the washing support plate 16 in the washing unit 6 is equipped with a control panel 15, which integrates a display screen, control buttons and a PLC controller.

[0039] The copper foil is wound and driven by the winding tension of the winding end equipment, while the conveyor roller 2 mainly provides support and auxiliary conveying functions.

[0040] The lower roller 4 is rotatably mounted on the electroplating tank 1. A hydraulic cylinder 8 is installed on the top of the extrusion support plate 17. The lower end of the hydraulic rod of the hydraulic cylinder 8 passes through the extrusion support plate 17 and is fixedly connected to a U-shaped frame. The upper roller 5 is rotatably mounted inside the U-shaped frame. The hydraulic cylinder 8 drives the U-shaped frame to adjust the gap between the upper roller 5 and the lower roller 4, i.e., the pressure of the extrusion roller. The drying oven 3 has a built-in temperature sensor (measuring range 50-200℃, accuracy ±3℃) and a heating tube group 11 (total power 10kW, divided into 3 independent control groups) installed on its inner wall. The drying oven 3 and the air knife unit 7 form a "two-stage drying" process, i.e., the air knife achieves rapid dehydration of the copper foil surface, and the drying oven 3 achieves deep drying. The two work together to rapidly reduce the moisture content of the foil surface under high humidity conditions.

[0041] The washing unit 6, the drying oven 3, and the air knife unit 7 are installed on the electroplating tank 1. The washing unit 6 and the air knife unit 7 are located on both sides of the extrusion roller, and the drying oven 3 is located between the washing unit 6 and the extrusion support plate 17. The washing unit 6 is used to rinse the copper foil, and the air knife unit 7 is used to dry the copper foil.

[0042] The washing unit 6 includes a U-shaped washing support plate 16, a rinsing pipe installed in the washing support plate 16, a fan-shaped nozzle, a pressure regulating valve, a flow sensor, and a servo angle adjustment mechanism. The rinsing pipe is connected to an external water source through a washing connection pipe 9. The fan-shaped nozzles are evenly distributed along the width of the copper foil with a spacing of 100-150mm. The servo angle adjustment mechanism adjusts the nozzle angle through gear transmission and dynamically changes the rinsing intensity in conjunction with the pressure regulating valve, achieving precise cleaning of impurities in different areas and eliminating blind spots in edge cleaning.

[0043] The air knife unit 7 includes a U-shaped air blowing support plate 18, a built-in electric heating tube (power 3kW, heating temperature 60-120℃), a temperature sensor (accuracy ±2℃), and an air knife outlet (width 5-10mm, adapted to the width of the copper foil). The air knife outlet is connected to an external air source through an air blowing connecting pipe 10 (10). The temperature sensor collects the air knife outlet temperature in real time and feeds it back to the control system. When the temperature deviates from the set value, the system adjusts the power of the electric heating tube to ensure that the outlet temperature is stable and to assist in the drying of the copper foil.

[0044] The detection unit is set on the electroplating tank 1. The detection unit is located on the side of the copper foil output by the air knife unit 7. The detection unit includes a bracket 12, an infrared moisture meter 13 and a laser particulate matter detector 14. The bracket 12 is set in an inverted L-shape. The infrared moisture meter 13 and the laser particulate matter detector 14 are installed side by side on the bracket 12 for real-time collection of the moisture content and cleanliness of the foil surface.

[0045] The upper roller 5 is made of polyurethane rubber (hardness Ha75-80, thickness 50-100mm), which has excellent elasticity and wear resistance, and can conform to the surface of the copper foil to achieve uniform extrusion. The lower roller 4 is made of 316 stainless steel (surface roughness Ra≤0.3μm), which combines corrosion resistance and rigidity to prevent roller deformation from affecting extrusion accuracy. The center distance between the two rollers can be finely adjusted by the subsequent pressure adjustment unit to adapt to composite copper foils of different thicknesses (6-150μm).

[0046] The electroplating tank 1 can also be equipped with a passivation solution residue sensor, which is used with an X-ray fluorescence spectrometer (detection limit ≤ 0.01 mg / cm³). 2 Installed 100mm downstream of the cleanliness sensor (laser particulate matter detector 14), the residual amount of passivation solution (target <0.1mg / cm³) is calculated by analyzing the elemental composition of the foil surface. 2 The data acquisition cycle is synchronized with the moisture content sensor to ensure the timeliness of multi-parameter detection.

[0047] The height of the bracket 12 is adjustable (adjustment range 5-15mm) to adapt to changes in foil position under different production scenarios, and the sensor is equipped with a dust cover (polycarbonate material) to prevent dust in the production environment from affecting the detection accuracy.

[0048] Among them, guide rods are symmetrically arranged on the top of the U-shaped frame. The guide rods are slidably inserted into the top of the U-shaped extrusion support plate (17) for guidance and to improve stability.

[0049] The control panel 15 uses a Siemens S7-1200 series PLC controller, equipped with an analog input module (receiving 4-20mA analog signals from sensors), a digital output module (controlling the action of actuators), and an industrial Ethernet module (achieving high-speed data transmission with a delay of ≤0.05 seconds). The PLC controller is also connected to a 10-inch touchscreen to display real-time parameters (moisture content, cleanliness, residue), set thresholds, and fault alarm information, facilitating monitoring and intervention by operators.

[0050] The control panel 15 incorporates a fuzzy PID coupled algorithm. The algorithm's inputs are the "moisture content deviation value," "cleanliness deviation value," and "passivation solution residue deviation value" collected by the detection module. The outputs are the coordinated adjustment values ​​of water washing pressure, squeezing roller pressure, air knife temperature, and oven temperature. Simultaneously, the system incorporates a multi-parameter weight allocation model, dynamically adjusting parameter priorities based on production speed (0-50 m / min): when production speed ≤ 20 m / min, moisture content weight is 0.6, cleanliness weight is 0.3, and residue weight is 0.1; when production speed > 20 m / min, the cleanliness weight increases to 0.4, and the moisture content weight decreases to 0.5, ensuring foil surface cleanliness even at high speeds.

[0051] Logic control rules: When the moisture content is >0.3% (target value), prioritize increasing the air knife temperature by 5°C and simultaneously increase the oven temperature by 10°C; if the moisture content does not decrease within 3 seconds, further increase the squeezing roller pressure by 0.2kN;

[0052] When the cleanliness exceeds the standard (impurity particle size > 5μm or number > 3 particles / m), 2 When the water washing pressure is increased by 0.1MPa, the nozzle angle is adjusted by servo mechanism (increased by 5°) to eliminate cleaning blind spots.

[0053] When the residual amount of passivation solution is >0.1 mg / cm³ 2 At the same time, increase the pressure of the squeezing roller by 0.3kN and extend the squeezing time by 0.2 seconds to ensure that the residual liquid is fully squeezed out.

[0054] In practical use, the following steps are included:

[0055] S1, Preprocessing and Initial Setup Stage:

[0056] Based on the thickness (6-150μm) of the composite copper foil to be processed, set the initial parameters using the control buttons on control panel 15:

[0057] Squeezing roller pressure: Hydraulic cylinder 8 drives the U-shaped frame to adjust the position of the upper roller 5 so that the center distance between the upper roller 5 (polyurethane rubber, Ha75-80) and the lower roller 4 (316 stainless steel) is adapted to the copper foil thickness. The initial roller pressure is set to 1-3kN (1-2kN for thin foil, 2-3kN for thick foil).

[0058] Washing unit 6: The initial angle of the fan-shaped nozzles (spacing 100-150mm along the width) is set to 15-20°, the opening of the pressure regulating valve corresponds to an initial pressure of 0.4-0.6MPa, and the flow sensor has a preset monitoring range of 5-10L / min;

[0059] Drying system: The initial temperature of the electric heating tube of air knife unit 7 is set to 80-90℃, and the initial temperature of heating tube group 11 of oven 3 is set to 120-140℃. The temperature sensor is activated for real-time monitoring (air knife accuracy ±2℃, oven 3 accuracy ±3℃).

[0060] Detection unit calibration: Adjust the height of the L-shaped bracket 12 (5-15mm) to keep the vertical distance between the infrared moisture meter 13 (measuring moisture content) and the laser particulate matter detector 14 (measuring cleanliness) and the foil surface 10mm.

[0061] S2, Copper Foil Conveying and Overall Process Control Stage:

[0062] Copper foil conveying and extrusion dehydration: Conveying roller 2 feeds the composite copper foil into the extrusion support plate 17. The copper foil passes between the upper roller 5 and the lower roller 4. The hydraulic cylinder 8 dynamically adjusts the pressure of the upper roller 5 according to the PLC command: If the detection unit reports that the moisture content is >0.3% (target value), the PLC outputs a signal to increase the pressure of the hydraulic cylinder 8, so that the roller pressure is increased by 0.2-0.3kN. Through the elastic extrusion of the upper roller 5 and the rigid support of the lower roller 4, the dehydration effect is enhanced. At the same time, the ultrasonic transducers inside the upper and lower rollers 4 are activated after processing 100m of copper foil (frequency 40kHz, lasting 30-60 seconds). The high-frequency vibration removes impurities from the roller surface and avoids cross-contamination.

[0063] Dynamic cleaning in water washing unit 6: When the copper foil enters the area of ​​water washing unit 6, the fan-shaped nozzle receives water from the external water source through the rinsing pipe. The servo angle adjustment mechanism adjusts the nozzle angle (0-30° adjustable, accuracy ±1°) according to the real-time data of the laser particulate matter detector 14.

[0064] If residual impurities are detected in the edge area of ​​the copper foil (particle size > 5 μm or number > 3 particles / m), 2 The nozzle angle is deflected 5-10° towards the edge, and the opening of the pressure regulating valve is increased, increasing the water washing pressure by 0.1-0.2MPa to enhance the edge cleaning intensity.

[0065] If the cleanliness of the central area meets the standard but the edge exceeds the standard, only the parameters of the corresponding nozzle at the edge are adjusted to avoid over-cleaning of the entire area and wasting water resources. The flow sensor monitors and feeds back the flow data in real time to ensure that the cleaning intensity matches the amount of impurities remaining.

[0066] Air knife-oven 3-stage drying: Copper foil enters the air knife unit 7, and the electric heating tube heats the air to the set temperature (60-120℃). The foil surface is quickly dehydrated through the air outlet with a width of 5-10mm. The temperature sensor collects the air outlet temperature in real time. If it deviates from the set value by ±2℃, the PLC immediately adjusts the heating tube power (increases the power if the temperature is low, and decreases the power if the temperature is high).

[0067] The copper foil enters the oven 3, where the built-in heating tube group 11 (controlled independently in 3 groups) achieves precise temperature control through feedback from temperature sensors (50-200℃). The oven 3 works in synergy with the air knife: the air knife removes more than 80% of the surface moisture of the foil, and the oven 3 reduces the residual moisture to ≤0.3% through deep heating (60-150℃). Especially in high humidity environments with relative humidity >60%, the linkage between the two can increase the rate of moisture content reduction by 50%.

[0068] S3, Intelligent Feedback and Parameter Optimization Stage:

[0069] Real-time detection data transmission: The detection unit is installed on the copper foil output side of the air knife unit 7. The infrared moisture meter 13, the laser particulate matter detector 14, and the passivation liquid residue sensor collect data at a refresh rate of ≤0.1 seconds and transmit it to the analog input module of the PLC controller (Siemens S7-1200) through a 4-20mA analog signal with a signal delay of ≤0.05 seconds.

[0070] Fuzzy PID Algorithm Calculation and Weight Allocation: The PLC has a built-in fuzzy PID coupled algorithm that compares the detected data with the set threshold to calculate the deviation value, and outputs control commands by combining the multi-parameter weight allocation model.

[0071] When the production speed is ≤20m / min: moisture content weight 0.6 (prioritize humidity control), cleanliness weight 0.3, residue weight 0.1. If the moisture content is >0.3% and the cleanliness meets the standard, prioritize increasing the air knife temperature by 5℃ + oven temperature 3 by 10℃.

[0072] When the production speed is >20m / min: cleanliness weight 0.4 (high speed is prone to impurities), moisture content weight 0.5, residue weight 0.1. If the cleanliness exceeds the standard (impurities >5μm), prioritize increasing the water washing pressure by 0.1MPa and adjusting the nozzle angle by 5°.

[0073] If the residual amount of passivation solution is >0.1 mg / cm³ 2 The pressure of the squeezing roller is increased by 0.3kN and the squeezing time is extended by 0.2 seconds to ensure that the residual liquid is fully squeezed out.

[0074] Execution module response and closed-loop feedback: The digital output module sends PLC instructions to each actuator, with a response time ≤ 0.5 seconds.

[0075] Pressure adjustment: The hydraulic cylinder 8 driven by a servo motor adjusts the roller pressure with an accuracy of ±0.1kN;

[0076] Water washing adjustment: The servo angle mechanism drives the gear to change the nozzle angle, and the pressure regulating valve adjusts the opening in real time;

[0077] Drying adjustment: The power of the air knife and the heating tube 3 of the oven are increased or decreased synchronously;

[0078] After adjustment, the detection unit collects data again and feeds it back to the PLC. If the parameters still do not meet the standards, the "calculation-execution" steps are repeated until the moisture content is ≤0.3% and the cleanliness meets the standards (impurities ≤5μm, number ≤3 / m). 2 Residual amount <0.1mg / cm³ 2 This forms a closed-loop control.

[0079] As a preferred embodiment, both the lower roller 4 and the upper roller 5 are equipped with integrated ultrasonic transducers, which are evenly distributed along the roller axis (50-80mm apart). The ultrasonic transducers are manually activated periodically and work continuously for 30-60 seconds. They remove impurities (such as copper powder and passivation liquid residue) adhering to the roller surface through high-frequency vibration, avoid cross-contamination, and ensure the cleanliness of the roller surface.

[0080] Example 1: Processing of composite copper foil with a thickness of 10μm

[0081] Device assembly: The center distance between the upper roller 5 (polyurethane rubber, Ha78, thickness 80mm) and the lower roller 4 (316 stainless steel) of the extrusion body is adjusted to 12mm to accommodate 10μm thick copper foil.

[0082] Detection module installation: Infrared moisture meter 13 (MS3500), laser particulate matter detector 14 (CLJ-BII), and X-ray fluorescence spectrometer are installed sequentially along the copper foil conveying direction, with spacing of 50mm and 100mm respectively, and a vertical distance of 10mm from the foil surface;

[0083] Preset parameters for the execution module: initial angle of the water washing nozzle 15°, pressure 0.4MPa; initial pressure of the squeezing roller 2kN; initial temperature of the air knife 80℃; initial temperature of the drying oven 3 120℃.

[0084] Operation process: The composite copper foil passes through the extrusion body at a speed of 20m / min. The detection module collects data in real time: moisture content 0.4% (exceeding the standard), cleanliness normal (impurity particle size ≤5μm, quantity 2 / m). 2 The residual amount of passivation solution was 0.08 mg / cm³. 2 (normal);

[0085] After receiving the data, the intelligent control system outputs the following instructions based on the weighted model (moisture content weight 0.6): increase the air knife temperature to 85℃ and increase the oven temperature to 130℃.

[0086] Execution module response: The power of the air knife electric heating tube increases, and the temperature rises to 85℃ within 3 seconds; the oven 3 heating tube group 11 starts, and the temperature rises to 130℃ within 5 seconds;

[0087] Retest: After 10 seconds, the moisture content dropped to 0.28% (meets the standard), and the system maintained the current parameters.

[0088] Example 2: Processing of 100μm thick composite copper foil (high impurity residue condition)

[0089] Equipment assembly: The center distance of the main extrusion body is adjusted to 22mm, and the upper roller has a hardness of Ha80 and a thickness of 100mm;

[0090] Preset parameters for the detection and execution modules: initial angle of the water washing nozzle 20°, pressure 0.5MPa; initial pressure of the squeezing roller 3kN; initial temperature of the air knife 90℃; initial temperature of the drying oven 3 140℃.

[0091] Operation process: The copper foil is conveyed at a speed of 30m / min. The detection module reports: cleanliness exceeds the standard (impurity particle size 6μm, quantity 5 / m). 2 Moisture content 0.25% (normal), passivation solution residue 0.12 mg / cm³ 2 (Exceeding the standard);

[0092] According to the weighted model (cleanliness weight 0.4, residue weight 0.1), the intelligent control system outputs the following commands: increase the water washing pressure to 0.6MPa, adjust the nozzle angle to 25°, and increase the squeezing roller pressure to 3.3kN.

[0093] Execution module actions: The pressure regulating valve opens wide, and the water washing pressure reaches 0.6MPa within 3 seconds; the servo angle adjustment mechanism drives the nozzle to rotate, increasing the angle to 25°; the servo motor drives hydraulic cylinder 8, and the roller pressure rises to 3.3kN;

[0094] Retest: Cleanliness meets standard after 8 seconds (impurity particle size ≤ 5μm, quantity 2 / m) 2 The residual amount of passivation solution was reduced to 0.09 mg / cm³. 2 (Meets the standards) The system restores its initial parameters and continues to operate stably.

[0095] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A linkage-controlled self-regulating extrusion roller device for composite copper foil production, characterized in that, include: An electroplating tank (1) and a conveying roller (2) for conveying copper foil, the conveying roller (2) being mounted on the electroplating tank (1); An extrusion support plate (17) is provided on the electroplating tank (1). An extrusion roller is installed inside the extrusion support plate (17). The extrusion roller includes a lower roller (4) and an upper roller (5). The copper foil is conveyed by the conveying roller (2) and dehydrated by extrusion between the lower roller (4) and the upper roller (5) to achieve the extrusion function. A water washing unit (6), an oven (3) and an air knife unit (7) are arranged on the electroplating tank (1). The water washing unit (6) and the air knife unit (7) are located on both sides of the extrusion roller, and the oven (3) is located between the water washing unit (6) and the extrusion support plate (17). The water washing unit (6) is used to rinse the copper foil, and the air knife unit (7) is used to dry the copper foil. The detection unit is set on the electroplating tank (1). The detection unit is located on the side of the copper foil output by the air knife unit (7). The detection unit includes a bracket (12), an infrared moisture meter (13), and a laser particulate matter detector (14). The bracket (12) is set in an inverted L-shape. The infrared moisture meter (13) and the laser particulate matter detector (14) are installed side by side on the bracket (12) for real-time collection of the moisture content and cleanliness of the foil surface.

2. The linkage-controlled self-regulating extrusion roller device for composite copper foil production according to claim 1, characterized in that: The lower roller (4) is rotatably mounted on the electroplating tank (1). A hydraulic cylinder (8) is mounted on the top of the extrusion support plate (17). The lower end of the hydraulic rod of the hydraulic cylinder (8) passes through the extrusion support plate (17) and is fixedly connected to a U-shaped frame. The upper roller (5) is rotatably mounted inside the U-shaped frame. The hydraulic cylinder (8) drives the U-shaped frame to adjust the gap between the upper roller (5) and the lower roller (4), i.e., the pressure of the extrusion roller.

3. The linkage-controlled self-regulating extrusion roller device for composite copper foil production according to claim 1, characterized in that: The washing unit (6) includes a U-shaped washing support plate (16), a rinsing pipe installed in the washing support plate (16), a fan-shaped nozzle, a pressure regulating valve, a flow sensor and a servo angle adjustment mechanism. The rinsing pipe is connected to an external water source through a washing connection pipe (9). The fan-shaped nozzles are evenly distributed along the width of the copper foil with a spacing of 100-150mm. The servo angle adjustment mechanism adjusts the nozzle angle through gear transmission and dynamically changes the rinsing intensity in conjunction with the pressure regulating valve. This enables precise cleaning of impurities in different areas and eliminates blind spots in edge cleaning.

4. The linkage-controlled self-regulating extrusion roller device for composite copper foil production according to claim 1, characterized in that: The air knife unit (7) includes a U-shaped air blowing support plate (18), a built-in electric heating tube, a temperature sensor and an air knife outlet. The temperature sensor collects the air temperature of the air knife outlet in real time. The air knife outlet is connected to an external air source through an air blowing connection pipe (10) and fed back to the control system. When the temperature deviates from the set value, the system adjusts the power of the electric heating tube to ensure that the outlet temperature is stable and to assist in the drying of copper foil.

5. The linkage-controlled self-regulating extrusion roller device for composite copper foil production according to claim 1, characterized in that: The oven (3) has a built-in temperature sensor and a heating tube assembly (11) installed on its inner wall. The oven (3) and the air knife unit (7) form a "two-stage drying" process, that is, the air knife achieves rapid dehydration of the copper foil surface, and the oven (3) achieves deep drying. The two work together to rapidly reduce the moisture content of the foil surface under high humidity conditions.

6. The linkage-controlled self-regulating extrusion roller device for composite copper foil production according to claim 1, characterized in that: Both the lower roller (4) and the upper roller (5) are equipped with integrated ultrasonic transducers, which are evenly distributed along the roller axis. The ultrasonic transducers are manually activated periodically and work continuously for 30-60 seconds. They remove impurities attached to the roller surface through high-frequency vibration, avoid cross-contamination, and ensure the cleanliness of the roller surface.

7. The linkage-controlled self-regulating extrusion roller device for composite copper foil production according to claim 3, characterized in that: A control panel (15) is installed on the outer wall of the water washing support plate (16) in the water washing unit (6). The control panel (15) integrates a display screen, control buttons and a PLC controller.

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